技术领域Technical field
本申请实施例涉及移动通信技术，尤其涉及一种信息发送方法，信息接收的方法和装置。The embodiments of the present application relate to mobile communication technology, and in particular, to an information sending method, information receiving method and device.
背景技术Background technique
在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的新无线接入技术(New Radio Access Technology，NR)系统中，系统资源从时间上被划分成多个正交频分复用多址(Orthogonal Frequency Division Multiple，OFDM)符号，从频率上划分成若干个子载波。下行链路中的物理下行链路控制信道(Physical Downlink ControlChannel，PDCCH)通常占用一个子帧中前两个或前三个OFDM符号。PDCCH用于承载下行控制信息(Downlink Control Information，DCI)。DCI中携带了UE特定的资源分配信息和UE特定的或小区共享的其它控制信息。上行链路中的物理上行链路共享信道(Physical UplinkShared Channel，PUSCH)用于承载上行数据，通常使用离散傅里叶变换扩展OFDM(DFT-Spread OFDM，DFT-S-OFDM)生成频域信号。一般地，一个时隙(slot)通常包括14个OFDM符号。系统中还定义了物理资源块(Physical Resource Block，PRB)的大小，一个PRB在频域上包含12个子载波，在某个OFDM符号内的某个子载波称为资源元素(Resource Element，RE)。In the New Radio Access Technology (NR) system of the 3rd Generation Partnership Project (3GPP), system resources are divided in time into multiple orthogonal frequency division multiplexing multiple access (Orthogonal Frequency Division Multiple, OFDM) symbols are divided into several subcarriers in frequency. The Physical Downlink Control Channel (PDCCH) in the downlink usually occupies the first two or first three OFDM symbols in a subframe. PDCCH is used to carry downlink control information (Downlink Control Information, DCI). DCI carries UE-specific resource allocation information and other UE-specific or cell-shared control information. The Physical Uplink Shared Channel (PUSCH) in the uplink is used to carry uplink data, and Discrete Fourier Transform Spread OFDM (DFT-Spread OFDM, DFT-S-OFDM) is usually used to generate frequency domain signals. Generally, one slot usually includes 14 OFDM symbols. The system also defines the size of the Physical Resource Block (PRB). One PRB contains 12 subcarriers in the frequency domain. A certain subcarrier within an OFDM symbol is called a resource element (Resource Element, RE).
解调参考信号(Demodulation Reference Signal，DM-RS)用于进行数据解调时的信道估计和信道质量及空间特性的推导。一般地，对于上行，DM-RS与其对应的PUSCH处于相同的时间单元内，并位于PUSCH之前以及嵌套在PUSCH中以保证上行数据解调性能。另外，PUSCH所占用的频域资源与对应的DM-RS资源相同以保证频域信道估计的准确性。NR中上的DM-RS与对应的数据信道采用相同的预编码和传输端口数，其中对于上行，基站通过调度数据信道的DCI同时指示DM-RS和PUSCH的预编码和传输端口数，PUSCH的传输端口数对应于传输层数，此时的DM-RS和PUSCH采用相同的发送端口。Demodulation Reference Signal (DM-RS) is used for channel estimation and derivation of channel quality and spatial characteristics during data demodulation. Generally, for the uplink, the DM-RS and its corresponding PUSCH are in the same time unit, and are located before the PUSCH and nested in the PUSCH to ensure uplink data demodulation performance. In addition, the frequency domain resources occupied by PUSCH are the same as the corresponding DM-RS resources to ensure the accuracy of frequency domain channel estimation. The DM-RS in NR uses the same precoding and transmission port number as the corresponding data channel. For the uplink, the base station simultaneously indicates the precoding and transmission port number of DM-RS and PUSCH by scheduling the DCI of the data channel. The number of PUSCH The number of transmission ports corresponds to the number of transmission layers. At this time, DM-RS and PUSCH use the same transmission port.
当终端设备处于小区边缘时，信道估计的性能会直接影响覆盖问题，如果DM-RS与对应的PUSCH占用相同的频域资源，则可能由于上行发射功率受限，而影响使用DM-RS信道估计的性能。将DM-RS在一个OFDM符号上所占用的载频资源减少并占用更多的OFDM符号虽然可以提升DM-RS发射功率，但上在上行采用DFT-S-OFDM时，PUSCH和DM-RS不能以频分复用方式传输，上述方法会导致一个时间单元内传输DM-RS的多个OFDM符号不能用于传输PUSCH，从而影响PUSCH传输效率以及网络的时频资源利用效率。When the terminal equipment is at the edge of the cell, the performance of channel estimation will directly affect the coverage problem. If DM-RS and the corresponding PUSCH occupy the same frequency domain resources, the use of DM-RS channel estimation may be affected due to limited uplink transmit power. performance. Although DM-RS transmission power can be improved by reducing the carrier frequency resources occupied by DM-RS on one OFDM symbol and occupying more OFDM symbols, when DFT-S-OFDM is used in the uplink, PUSCH and DM-RS cannot Transmitted in a frequency division multiplexing manner, the above method will cause multiple OFDM symbols used to transmit DM-RS in one time unit to be unable to be used to transmit PUSCH, thus affecting the PUSCH transmission efficiency and the network's time-frequency resource utilization efficiency.
发明内容Contents of the invention
本申请实施例描述的一种信息发送方法，信息接收的方法和装置，以提升上行解调参考信号DM-RS的接收性能，从而可以进一步提升信道估计的性能，最终提升上行数据信息的接收性能，比如上行数据信息的解码成功率。The embodiments of this application describe an information sending method, information receiving method and device to improve the reception performance of the uplink demodulation reference signal DM-RS, thereby further improving the performance of channel estimation and ultimately improving the reception performance of uplink data information. , such as the decoding success rate of uplink data information.
第一方面，本发明实施例提供一种信息发送的方法，该方法包括终端设备接收第一下行控制信息DCI，第一DCI包括第一时间段的第一上行物理资源的信息；在第一上行物理资源上发送第一解调参考信号DM-RS和第一数据信息，在第二时间段发送参考信号，第一DM-RS所占用的频域单元的数量M小于或等于第一上行物理资源的频域单元的数量N，参考信号所占用的频域单元的至少一部分与第一上行物理资源的频域单元的至少一部分重叠，M，N为大于或等于1的整数。一方面，DM-RS的带宽小于第一物理上行资源的带宽，可以提升DM-RS的发射功率，特别是对于小区边缘的终端设备，可以提升DM-RS的接收性能，另外参考信号和DM-RS联合进行信道估计，可以提升信道估计性能，从而有利于解调第一上行物理资源上传输的第一数据信息。In a first aspect, embodiments of the present invention provide a method for sending information. The method includes a terminal device receiving first downlink control information DCI, where the first DCI includes information on a first uplink physical resource in a first time period; in the first The first demodulation reference signal DM-RS and the first data information are sent on the uplink physical resources, and the reference signal is sent in the second time period. The number M of frequency domain units occupied by the first DM-RS is less than or equal to the first uplink physical resource. The number of frequency domain units of the resource is N. At least part of the frequency domain unit occupied by the reference signal overlaps with at least part of the frequency domain unit of the first uplink physical resource. M, N is an integer greater than or equal to 1. On the one hand, the bandwidth of DM-RS is smaller than the bandwidth of the first physical uplink resource, which can increase the transmit power of DM-RS, especially for terminal equipment at the cell edge, which can improve the reception performance of DM-RS. In addition, the reference signal and DM-RS RS jointly performs channel estimation, which can improve channel estimation performance, thereby facilitating demodulation of the first data information transmitted on the first uplink physical resource.
在一种可能的设计中，在接收所述DCI之前，还包括：接收参考信号的配置信息，所述配置信息用于指示参考信号用于解调数据。In a possible design, before receiving the DCI, the method further includes: receiving configuration information of a reference signal, where the configuration information is used to indicate that the reference signal is used for demodulating data.
在一种可能的设计中，判断第一上行物理资源的频域单元的数量N是否大于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N大于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M小于所述第一上行物理资源的频域单元的数量N。可以有利于减少DM-RS所占用的频域单元的数量，提升DM-RS的发射功率，保证第一上行物理资源的带宽比较大时，DM-RS的接收性能。In one possible design, determine whether the number N of frequency domain units of the first uplink physical resource is greater than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource is greater than or equal to the preconfigured value value, it is determined that the number M of frequency domain units occupied by the first DM-RS is less than the number N of frequency domain units of the first uplink physical resource. This can help reduce the number of frequency domain units occupied by DM-RS, increase the transmit power of DM-RS, and ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively large.
在一种可能的设计中，判断第一上行物理资源的频域单元的数量N是否小于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N小于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M等于所述第一上行物理资源的频域单元的数量N。可以保证第一上行物理资源的带宽比较小时，DM-RS的接收性能。该预先配置的值可以为预先约定的，或者通过信令通知的，该预先配置的值可以与系统带宽或者激活的部分带宽(Bandwidth part，BWP)相关，比如为系统带宽或者BWP的1/n，n取大于1的整数。In one possible design, determine whether the number N of frequency domain units of the first uplink physical resource is less than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource is less than or equal to the preconfigured value value, it is determined that the number M of frequency domain units occupied by the first DM-RS is equal to the number N of frequency domain units of the first uplink physical resource. It can ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively small. The preconfigured value can be pre-agreed or notified through signaling. The preconfigured value can be related to the system bandwidth or the activated partial bandwidth (Bandwidth part, BWP), such as 1/n of the system bandwidth or BWP. , n is an integer greater than 1.
在一种可能的设计中，终端设备接收第二DCI，所述第二DCI包括第三时间段的第二上行物理资源的信息，第三时间段在第一时间段之后，第二上行物理资源的频域单元的至少一部分与第一上行物理资源的频域单元的至少一部分重叠；在第二上行物理资源上发送第二DM-RS和第二数据信息，第二DM-RS所占用的频域单元的数量小于所述第一DM-RS所占用的频域单元的数量M。如果在连续时间段上有上行物理资源，或者密度大于一定程度的时间段上有上行物理资源，则可以利用一段时间内的信道相关性，结合在前的时间段的DM-RS进行联合信道估计，进一步降低在后的时间段的DM-RS所占用的频域单元的数量，从而可以进一步提升DM-RS的发射功率，提升在后的时间段的上行物理资源上传输的数据信息的解调性能。In a possible design, the terminal device receives a second DCI, the second DCI includes information about the second uplink physical resource in a third time period, and the third time period is after the first time period, and the second uplink physical resource At least part of the frequency domain unit overlaps with at least part of the frequency domain unit of the first uplink physical resource; sending the second DM-RS and the second data information on the second uplink physical resource, the frequency occupied by the second DM-RS The number of domain units is smaller than the number M of frequency domain units occupied by the first DM-RS. If there are uplink physical resources in continuous time periods, or there are uplink physical resources in time periods with a density greater than a certain level, the channel correlation within a period of time can be used to perform joint channel estimation combined with the DM-RS of the previous time period. , further reducing the number of frequency domain units occupied by DM-RS in the later time period, thereby further increasing the transmit power of DM-RS and improving the demodulation of data information transmitted on the uplink physical resources in the later time period. performance.
在一种可能的设计中，终端设备在所述第一时间段与所述第三时间段之间的至少一个时间段，或所有时间段，或连续K个时间段，或累积K个时间段的上行物理资源上发送DM-RS和数据信息，K为大于1的整数。In a possible design, the terminal device operates in at least one time period between the first time period and the third time period, or all time periods, or K consecutive time periods, or K accumulated K time periods. DM-RS and data information are sent on the uplink physical resources, and K is an integer greater than 1.
在一种可能的设计中，终端设备在所述第一时间段与所述第三时间段之间的至少一个时间段的上行物理资源上发送DM-RS和数据信息，且所述至少一个时间段，第一时间段和第三时间段所包括的时间段中任意两个时间段的时间间隔小于K，K为大于或等于0的整数。In a possible design, the terminal device sends DM-RS and data information on uplink physical resources in at least one time period between the first time period and the third time period, and the at least one time period period, the time interval between any two time periods included in the first time period and the third time period is less than K, and K is an integer greater than or equal to 0.
第二方面，本发明实施例提供了一种信息接收的方法，该方法包括，网络设备发送第一下行控制信息DCI，所述第一DCI包括第一时间段的第一上行物理资源的信息；在所述第一上行物理资源上接收终端设备发送的第一解调参考信号DM-RS和第一数据信息，在第二时间段接收参考信号，所述第一DM-RS所占用的频域单元的数量M小于或等于所述第一上行物理资源的频域单元的数量N，所述参考信号所占用的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠，M，N为大于或等于1的整数。一方面，DM-RS的带宽小于第一物理上行资源的带宽，可以提升DM-RS的发射功率，特别是对于小区边缘的终端设备，可以提升DM-RS的接收性能，另外参考信号和DM-RS联合进行信道估计，可以提升信道估计性能，从而有利于解调第一上行物理资源上传输的第一数据信息。In a second aspect, embodiments of the present invention provide a method for receiving information. The method includes: a network device sending first downlink control information DCI, where the first DCI includes information about a first uplink physical resource in a first time period. ; Receive the first demodulation reference signal DM-RS and the first data information sent by the terminal device on the first uplink physical resource, receive the reference signal in the second time period, and the frequency occupied by the first DM-RS The number M of domain units is less than or equal to the number N of frequency domain units of the first uplink physical resource, and at least a part of the frequency domain units occupied by the reference signal is the same as at least a part of the frequency domain units of the first uplink physical resource. Partial overlap, M, N are integers greater than or equal to 1. On the one hand, the bandwidth of DM-RS is smaller than the bandwidth of the first physical uplink resource, which can increase the transmit power of DM-RS, especially for terminal equipment at the cell edge, which can improve the reception performance of DM-RS. In addition, the reference signal and DM-RS RS jointly performs channel estimation, which can improve channel estimation performance, thereby facilitating demodulation of the first data information transmitted on the first uplink physical resource.
在一种可能的设计中，在发送所述DCI之前，还包括：发送参考信号的配置信息，所述配置信息用于指示参考信号用于解调数据。In a possible design, before sending the DCI, the method further includes: sending configuration information of a reference signal, where the configuration information is used to indicate that the reference signal is used for demodulating data.
在一种可能的设计中，判断第一上行物理资源的频域单元的数量N是否大于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N大于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M小于所述第一上行物理资源的频域单元的数量N。可以有利于减少DM-RS所占用的频域单元的数量，提升DM-RS的发射功率，保证第一上行物理资源的带宽比较大时，DM-RS的接收性能。In one possible design, determine whether the number N of frequency domain units of the first uplink physical resource is greater than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource is greater than or equal to the preconfigured value value, it is determined that the number M of frequency domain units occupied by the first DM-RS is less than the number N of frequency domain units of the first uplink physical resource. This can help reduce the number of frequency domain units occupied by DM-RS, increase the transmit power of DM-RS, and ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively large.
在一种可能的设计中，判断第一上行物理资源的频域单元的数量N是否小于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N小于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M等于所述第一上行物理资源的频域单元的数量N。可以保证第一上行物理资源的带宽比较小时，DM-RS的接收性能。In one possible design, determine whether the number N of frequency domain units of the first uplink physical resource is less than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource is less than or equal to the preconfigured value value, it is determined that the number M of frequency domain units occupied by the first DM-RS is equal to the number N of frequency domain units of the first uplink physical resource. It can ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively small.
在一种可能的设计中，网络设备发送第二DCI，所述第二DCI包括第三时间段的第二上行物理资源的信息，所述第三时间段在所述第一时间段之后，所述第二上行物理资源的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠；在所述第二上行物理资源上接收第二DM-RS和第二数据信息，所述第二DM-RS所占用的频域单元的数量小于所述第一DM-RS所占用的频域单元的数量M。如果在连续时间段上有上行物理资源，或者密度大于一定程度的时间段上有上行物理资源，则可以利用一段时间内的信道相关性，结合在前的时间段的DM-RS进行联合信道估计，进一步降低在后的时间段的DM-RS所占用的频域单元的数量，从而可以进一步提升DM-RS的发射功率，提升在后的时间段的上行物理资源上传输的数据信息的解调性能。In a possible design, the network device sends a second DCI, the second DCI includes information about the second uplink physical resource in a third time period, and the third time period is after the first time period, so At least part of the frequency domain unit of the second uplink physical resource overlaps with at least part of the frequency domain unit of the first uplink physical resource; receiving the second DM-RS and the second data information on the second uplink physical resource , the number of frequency domain units occupied by the second DM-RS is less than the number M of frequency domain units occupied by the first DM-RS. If there are uplink physical resources in continuous time periods, or there are uplink physical resources in time periods with a density greater than a certain level, the channel correlation within a period of time can be used to perform joint channel estimation combined with the DM-RS of the previous time period. , further reducing the number of frequency domain units occupied by DM-RS in the later time period, thereby further increasing the transmit power of DM-RS and improving the demodulation of data information transmitted on the uplink physical resources in the later time period. performance.
在一种可能的设计中，网络设备在所述第一时间段与所述第三时间段之间的至少一个时间段，或所有时间段，或连续K个时间段，或累积K个时间段的上行物理资源上接收DM-RS和数据信息，K为大于1的整数。In a possible design, the network device operates in at least one time period between the first time period and the third time period, or all time periods, or K consecutive time periods, or K accumulated K time periods. DM-RS and data information are received on the uplink physical resources, and K is an integer greater than 1.
在一种可能的设计中，网络设备在所述第一时间段与所述第三时间段之间的至少一个时间段的上行物理资源上接收DM-RS和数据信息，且所述至少一个时间段，第一时间段和第三时间段所包括的时间段中任意两个时间段的时间间隔小于K，K为大于或等于0的整数。In a possible design, the network device receives DM-RS and data information on uplink physical resources in at least one time period between the first time period and the third time period, and the at least one time period period, the time interval between any two time periods included in the first time period and the third time period is less than K, and K is an integer greater than or equal to 0.
第三方面，本申请实施例提供了一种通信装置。该装置包括：处理器和与所述处理器耦合的收发器；In a third aspect, embodiments of the present application provide a communication device. The apparatus includes: a processor and a transceiver coupled to the processor;
所述处理器用于，通过所述收发器接收第一下行控制信息DCI，所述第一DCI包括第一时间段的第一上行物理资源的信息；所述处理器还用于，通过所述收发器在所述第一上行物理资源上发送第一解调参考信号DM-RS和第一数据信息，在第二时间段发送参考信号，所述第一DM-RS所占用的频域单元的数量M小于或等于所述第一上行物理资源的频域单元的数量N，参考信号所占用的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠，M，N为大于或等于1的整数。一方面，DM-RS的带宽小于第一物理上行资源的带宽，可以提升DM-RS的发射功率，特别是对于小区边缘的终端设备，可以提升DM-RS的接收性能，另外参考信号和DM-RS联合进行信道估计，可以提升信道估计性能，从而有利于解调第一上行物理资源上传输的第一数据信息。在一种可能的设计中，在接收所述DCI之前，所述处理器还用于，通过所述收发器接收参考信号的配置信息，所述配置信息用于指示参考信号用于解调数据。The processor is configured to receive first downlink control information DCI through the transceiver, where the first DCI includes information about a first uplink physical resource in a first time period; the processor is also configured to receive the first downlink control information DCI through the transceiver. The transceiver sends the first demodulation reference signal DM-RS and the first data information on the first uplink physical resource, and sends the reference signal in the second time period. The frequency domain unit occupied by the first DM-RS The number M is less than or equal to the number N of frequency domain units of the first uplink physical resource, and at least part of the frequency domain unit occupied by the reference signal overlaps with at least part of the frequency domain unit of the first uplink physical resource, M, N is an integer greater than or equal to 1. On the one hand, the bandwidth of DM-RS is smaller than the bandwidth of the first physical uplink resource, which can increase the transmit power of DM-RS, especially for terminal equipment at the cell edge, which can improve the reception performance of DM-RS. In addition, the reference signal and DM-RS RS jointly performs channel estimation, which can improve channel estimation performance, thereby facilitating demodulation of the first data information transmitted on the first uplink physical resource. In a possible design, before receiving the DCI, the processor is further configured to receive configuration information of a reference signal through the transceiver, where the configuration information is used to indicate that the reference signal is used to demodulate data.
在一种可能的设计中，所述处理器用于，判断所述第一上行物理资源的频域单元的数量N是否大于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N大于或等于所述预先配置的值，确定所述第一DM-RS所占的频域单元的数量M小于所述第一上行物理资源的频域单元的数量N。可以有利于减少DM-RS所占用的频域单元的数量，提升DM-RS的发射功率，保证第一上行物理资源的带宽比较大时，DM-RS的接收性能。In a possible design, the processor is configured to determine whether the number N of frequency domain units of the first uplink physical resource is greater than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource The number N is greater than or equal to the preconfigured value, it is determined that the number M of frequency domain units occupied by the first DM-RS is less than the number N of frequency domain units of the first uplink physical resource. This can help reduce the number of frequency domain units occupied by DM-RS, increase the transmit power of DM-RS, and ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively large.
在一种可能的设计中，处理器判用于判断第一上行物理资源的频域单元的数量N是否小于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N小于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M等于所述第一上行物理资源的频域单元的数量N。可以保证第一上行物理资源的带宽比较小时，DM-RS的接收性能。In a possible design, the processor determines whether the number N of frequency domain units of the first uplink physical resource is less than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource is less than or equal to the preconfigured value, it is determined that the number M of frequency domain units occupied by the first DM-RS is equal to the number N of frequency domain units of the first uplink physical resource. It can ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively small.
在一种可能的设计中，所述处理器用于，通过所述收发器接收第二DCI，所述第二DCI包括第三时间段的第二上行物理资源的信息，所述第三时间段在所述第一时间段之后，所述第二上行物理资源的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠；所述处理器还用于，通过所述收发器在所述第二上行物理资源上发送第二DM-RS和第二数据信息，所述第二DM-RS所占用的频域单元的数量小于所述第一DM-RS所占用的频域单元的数量M。如果在连续时间段上有上行物理资源，或者密度大于一定程度的时间段上有上行物理资源，则可以利用一段时间内的信道相关性，结合在前的时间段的DM-RS进行联合信道估计，进一步降低在后的时间段的DM-RS所占用的频域单元的数量，从而可以进一步提升DM-RS的发射功率，提升在后的时间段的上行物理资源上传输的数据信息的解调性能。In a possible design, the processor is configured to receive a second DCI through the transceiver, where the second DCI includes information on the second uplink physical resource in a third time period, and the third time period is After the first time period, at least part of the frequency domain unit of the second uplink physical resource overlaps with at least part of the frequency domain unit of the first uplink physical resource; the processor is further configured to: The transceiver sends a second DM-RS and second data information on the second uplink physical resource, and the number of frequency domain units occupied by the second DM-RS is smaller than the number of frequency domain units occupied by the first DM-RS. The number of domain units is M. If there are uplink physical resources in continuous time periods, or there are uplink physical resources in time periods with a density greater than a certain level, the channel correlation within a period of time can be used to perform joint channel estimation combined with the DM-RS of the previous time period. , further reducing the number of frequency domain units occupied by DM-RS in the later time period, thereby further increasing the transmit power of DM-RS and improving the demodulation of data information transmitted on the uplink physical resources in the later time period. performance.
在一种可能的设计中，所述处理器用于，通过所述收发器在所述第一时间段与所述第三时间段之间的至少一个时间段，或所有时间段，或连续K个时间段，或累积K个时间段的上行物理资源上发送DM-RS和数据信息，K为大于1的整数。In a possible design, the processor is configured to use the transceiver in at least one time period between the first time period and the third time period, or all time periods, or K consecutive DM-RS and data information are sent on the uplink physical resources of a time period, or accumulated K time periods, where K is an integer greater than 1.
在一种可能的设计中，所述处理器用于，通过所述收发器在所述第一时间段与所述第三时间段之间的至少一个时间段的上行物理资源上发送DM-RS和数据信息，且所述至少一个时间段，第一时间段和第三时间段所包括的时间段中任意两个时间段的时间间隔小于K，K为大于或等于0的整数。In a possible design, the processor is configured to send, through the transceiver, DM-RS and data information, and the time interval between any two time periods among the time periods included in the at least one time period, the first time period and the third time period is less than K, where K is an integer greater than or equal to 0.
第四方面，本申请实施例提供了一种通信装置，该通信装置包括：处理器和与所述处理器耦合的收发器；In a fourth aspect, embodiments of the present application provide a communication device, which includes: a processor and a transceiver coupled to the processor;
所述处理器用于，通过所述收发器发送第一下行控制信息DCI，所述第一DCI包括第一时间段的第一上行物理资源的信息；所述处理器还用于，通过所述收发器在所述第一上行物理资源上接收终端设备发送的第一解调参考信号DM-RS和第一数据信息，在第二时间段接收参考信号，所述第一DM-RS所占用的频域单元的数量M小于或等于所述第一上行物理资源的频域单元的数量N，所述参考信号所占用的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠，M，N为大于或等于1的整数。一方面，DM-RS的带宽小于第一物理上行资源的带宽，可以提升DM-RS的发射功率，特别是对于小区边缘的终端设备，可以提升DM-RS的接收性能，另外参考信号和DM-RS联合进行信道估计，可以提升信道估计性能，从而有利于解调第一上行物理资源上传输的第一数据信息。The processor is configured to send first downlink control information DCI through the transceiver, where the first DCI includes information about a first uplink physical resource in a first time period; the processor is further configured to send through the transceiver The transceiver receives the first demodulation reference signal DM-RS and the first data information sent by the terminal device on the first uplink physical resource, and receives the reference signal in the second time period. The first DM-RS occupies the The number M of frequency domain units is less than or equal to the number N of frequency domain units of the first uplink physical resource, and at least a part of the frequency domain unit occupied by the reference signal is the same as the number of frequency domain units of the first uplink physical resource. At least partially overlaps, M and N are integers greater than or equal to 1. On the one hand, the bandwidth of DM-RS is smaller than the bandwidth of the first physical uplink resource, which can increase the transmit power of DM-RS, especially for terminal equipment at the cell edge, which can improve the reception performance of DM-RS. In addition, the reference signal and DM-RS RS jointly performs channel estimation, which can improve channel estimation performance, thereby facilitating demodulation of the first data information transmitted on the first uplink physical resource.
在一种可能的设计中，在发送所述DCI之前，所述处理器用于，通过所述收发器发送参考信号的配置信息，所述配置信息用于指示参考信号用于解调数据。In a possible design, before sending the DCI, the processor is configured to send configuration information of a reference signal through the transceiver, where the configuration information is used to indicate that the reference signal is used to demodulate data.
在一种可能的设计中，所述处理器用于，判断所述第一上行物理资源的频域单元的数量N是否大于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量大于或等于所述预先配置的值，确定所述第一DM-RS所占的频域单元的数量M小于所述第一上行物理资源的频域单元的数量N。可以有利于减少DM-RS所占用的频域单元的数量，提升DM-RS的发射功率，保证第一上行物理资源的带宽比较大时，DM-RS的接收性能。In a possible design, the processor is configured to determine whether the number N of frequency domain units of the first uplink physical resource is greater than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource The number is greater than or equal to the preconfigured value, it is determined that the number M of frequency domain units occupied by the first DM-RS is less than the number N of frequency domain units of the first uplink physical resource. This can help reduce the number of frequency domain units occupied by DM-RS, increase the transmit power of DM-RS, and ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively large.
在一种可能的设计中，所述处理器用于，判断第一上行物理资源的频域单元的数量N是否小于或等于预先配置的值；如果所述第一上行物理资源的频域单元的数量N小于或等于预先配置的值，确定第一DM-RS所占的频域单元的数量M等于所述第一上行物理资源的频域单元的数量N。可以保证第一上行物理资源的带宽比较小时，DM-RS的接收性能。In a possible design, the processor is configured to determine whether the number N of frequency domain units of the first uplink physical resource is less than or equal to a preconfigured value; if the number N of frequency domain units of the first uplink physical resource N is less than or equal to a preconfigured value, and it is determined that the number M of frequency domain units occupied by the first DM-RS is equal to the number N of frequency domain units of the first uplink physical resource. It can ensure the reception performance of DM-RS when the bandwidth of the first uplink physical resource is relatively small.
在一种可能的设计中，所述处理器用于，通过所述收发器发送第二DCI，所述第二DCI包括第三时间段的第二上行物理资源的信息，所述第三时间段在所述第一时间段之后，所述第二上行物理资源的频域单元的至少一部分与所述第一上行物理资源的频域单元的至少一部分重叠；所述处理器还用于，通过所述收发器在所述第二上行物理资源上接收第二DM-RS和第二数据信息，所述第二DM-RS所占用的频域单元的数量小于所述第一DM-RS所占用的频域单元的数量M。如果在连续时间段上有上行物理资源，或者密度大于一定程度的时间段上有上行物理资源，则可以利用一段时间内的信道相关性，结合在前的时间段的DM-RS进行联合信道估计，进一步降低在后的时间段的DM-RS所占用的频域单元的数量，从而可以进一步提升DM-RS的发射功率，提升在后的时间段的上行物理资源上传输的数据信息的解调性能。In a possible design, the processor is configured to send a second DCI through the transceiver, where the second DCI includes information on the second uplink physical resource in a third time period, and the third time period is After the first time period, at least part of the frequency domain unit of the second uplink physical resource overlaps with at least part of the frequency domain unit of the first uplink physical resource; the processor is further configured to: The transceiver receives a second DM-RS and second data information on the second uplink physical resource, and the number of frequency domain units occupied by the second DM-RS is smaller than the number of frequency domain units occupied by the first DM-RS. The number of domain units is M. If there are uplink physical resources in continuous time periods, or there are uplink physical resources in time periods with a density greater than a certain level, the channel correlation within a period of time can be used to perform joint channel estimation combined with the DM-RS of the previous time period. , further reducing the number of frequency domain units occupied by DM-RS in the later time period, thereby further increasing the transmit power of DM-RS and improving the demodulation of data information transmitted on the uplink physical resources in the later time period. performance.
在一种可能的设计中，所述处理器用于，通过所述收发器在所述第一时间段与所述第三时间段之间的至少一个时间段，或所有时间段，或连续K个时间段，或累积K个时间段的上行物理资源上接收DM-RS和数据信息，K为大于1的整数。In a possible design, the processor is configured to use the transceiver in at least one time period between the first time period and the third time period, or all time periods, or K consecutive time period, or receive DM-RS and data information on the uplink physical resource of accumulated K time periods, where K is an integer greater than 1.
在一种可能的设计中，所述处理器用于，通过所述收发器在所述第一时间段与所述第三时间段之间的至少一个时间段的上行物理资源上接收DM-RS和数据信息，且所述至少一个时间段，第一时间段和第三时间段所包括的时间段中任意两个时间段的时间间隔小于K，K为大于或等于0的整数。In a possible design, the processor is configured to receive, through the transceiver, DM-RS and DM-RS on uplink physical resources in at least one time period between the first time period and the third time period. data information, and the time interval between any two time periods among the time periods included in the at least one time period, the first time period and the third time period is less than K, where K is an integer greater than or equal to 0.
结合上述各个方面及可能的设计，在一种可能的设计中，参考信号所占用的频域单元包括第一上行物理资源的频域单元中没有被第一DM-RS所占用的频域单元中的至少一部分。通过将DM-RS所占用的频域单元和参考信号所占用的频域单元在频域上互补，可以获得第一上行物理资源的频域单元中更多频域单元的信道信息，从而有利于解调第一上行物理资源上传输的第一数据信息。Combining the above aspects and possible designs, in one possible design, the frequency domain units occupied by the reference signal include frequency domain units in the first uplink physical resource that are not occupied by the first DM-RS. at least part of. By complementing the frequency domain units occupied by DM-RS and the frequency domain units occupied by reference signals in the frequency domain, channel information of more frequency domain units in the frequency domain units of the first uplink physical resource can be obtained, which is beneficial to Demodulate the first data information transmitted on the first uplink physical resource.
结合上述各个方面及可能的设计，在一种可能的设计中，在一种可能的设计中，第一DM-RS所占的频域单元与参考信号所占的频域单元不完全重叠，即参考信号所占的频域单元中存在至少部分频域单元不包含第一DM-RS所占的任意频域单元，和/或第一DM-RS所占的频域单元中存在至少部分频域单元不包含参考信号所占的的任意频域单元。Combining the above aspects and possible designs, in one possible design, the frequency domain unit occupied by the first DM-RS does not completely overlap with the frequency domain unit occupied by the reference signal, that is, At least part of the frequency domain units occupied by the reference signal does not include any frequency domain unit occupied by the first DM-RS, and/or at least part of the frequency domain units occupied by the first DM-RS exists The unit does not contain any frequency domain unit occupied by the reference signal.
结合上述各个方面及可能的设计，在一种可能的设计中，第一DCI包括参考信号触发请求，其中，所述参考信号触发请求用于指示在所述第二时间段发送所述参考信号，和/或,所述参考信号触发请求用于指示在所述第二时间段上发送所述参考信号所占用的频域单元，和/或，所述参考信号触发请求用于指示在所述第二时间段上发送所述参考信号所使用的资源图案(Pattern)，和/或，所述参考信号触发请求用于指示发送所述第一DM-RS、所述第一数据信息以及在所述第二时间段上发送所述参考信号所使用的空间滤波信息。Combining the above aspects and possible designs, in a possible design, the first DCI includes a reference signal trigger request, wherein the reference signal trigger request is used to indicate sending the reference signal in the second time period, And/or, the reference signal trigger request is used to indicate the frequency domain unit occupied by sending the reference signal in the second time period, and/or, the reference signal trigger request is used to indicate that the reference signal is sent in the second time period. A resource pattern (Pattern) used to send the reference signal in two time periods, and/or the reference signal trigger request is used to indicate sending the first DM-RS, the first data information and the Spatial filtering information used to send the reference signal in the second time period.
结合上述各个方面及可能的设计，在一种可能的设计中，第一时间段和第二时间段属于同一时间段，或者，第二时间段在第一时间段之后。Combining the above aspects and possible designs, in one possible design, the first time period and the second time period belong to the same time period, or the second time period is after the first time period.
结合上述各个方面及可能的设计，在一种可能的设计中，第一时间段与第二时间段的定时关系在协议中固定，或者通过高层信令配置，或者通过第一DCI携带。Combining the above aspects and possible designs, in one possible design, the timing relationship between the first time period and the second time period is fixed in the protocol, or configured through high-layer signaling, or carried through the first DCI.
结合上述各个方面及可能的设计，在一种可能的设计中，发送所述参考信号的物理天线端口与发送所述第一DM-RS的物理天线端口相同，和/或，发送所述参考信号所使用的预编码矩阵与发送所述第一DM-RS所使用的预编码矩阵相同，和/或，所述参考信号的空间滤波信息与所述第一DM-RS的空间滤波信息相同，和/或，所述参考信号的端口数与所述第一DM-RS的端口数相同，且所述参考信号的端口与所述第一DM-RS的端口一一映射。Combining the above aspects and possible designs, in one possible design, the physical antenna port that sends the reference signal is the same as the physical antenna port that sends the first DM-RS, and/or, the reference signal is sent The precoding matrix used is the same as the precoding matrix used to transmit the first DM-RS, and/or the spatial filtering information of the reference signal is the same as the spatial filtering information of the first DM-RS, and /Or, the number of ports of the reference signal is the same as the number of ports of the first DM-RS, and the ports of the reference signal are mapped one-to-one to the ports of the first DM-RS.
结合上述各个方面及可能的设计，在一种可能的设计中，第一DCI中还包括第一信令，第一信令用于指示第一DM-RS所占用的频域单元的数量M和频域位置，和/或，参考信号所占用的频域单元的数量和频域位置。Combining the above aspects and possible designs, in a possible design, the first DCI also includes first signaling, and the first signaling is used to indicate the number M of frequency domain units occupied by the first DM-RS and Frequency domain position, and/or, the number and frequency domain position of frequency domain units occupied by the reference signal.
结合上述各个方面及可能的设计，在一种可能的设计中，第一DM-RS所占的频域单元的数量M和频域位置包括：第一上行物理资源中的从最低频率开始的M个连续的频域单元；所述第一上行物理资源中的从最高频率开始的M个连续的频域单元；所述第一上行物理资源中的M个离散的频域单元；所述第一上行物理资源从最低频率加预配置的频率偏移量Offset开始的M个连续的频域单元；所述第一上行物理资源从最高频率加预配置的频率偏移量Offset开始的M个连续的频域单元，Offset为正整数。Combining the above aspects and possible designs, in one possible design, the number M and frequency domain positions of frequency domain units occupied by the first DM-RS include: M starting from the lowest frequency in the first uplink physical resource M continuous frequency domain units; M continuous frequency domain units starting from the highest frequency in the first uplink physical resource; M discrete frequency domain units in the first uplink physical resource; the first The uplink physical resources are M consecutive frequency domain units starting from the lowest frequency plus the preconfigured frequency offset Offset; the first uplink physical resource is M consecutive frequency domain units starting from the highest frequency plus the preconfigured frequency offset Offset. Frequency domain unit, Offset is a positive integer.
结合上述各个方面及可能的设计，在一种可能的设计中，所述参考信号所占的频域单元根据所述第一DM-RS所占的频域单元确定；或者所述第一DM-RS所占的频域单元根据所述参考信号所占的频域单元确定。Combining the above aspects and possible designs, in one possible design, the frequency domain unit occupied by the reference signal is determined according to the frequency domain unit occupied by the first DM-RS; or the first DM-RS The frequency domain unit occupied by the RS is determined according to the frequency domain unit occupied by the reference signal.
结合上述各个方面及可能的设计，在一种可能的设计中，所述第一DCI中还包括传输层数指示信息，所述传输层数指示信息用于指示所述第一上行物理资源上数据传输的层数，所述参考信号的端口数与所述传输层数指示信息指示的传输层数相同。Combining the above aspects and possible designs, in one possible design, the first DCI also includes transmission layer number indication information, and the transmission layer number indication information is used to indicate data on the first uplink physical resource. The number of transmission layers, the number of ports of the reference signal is the same as the number of transmission layers indicated by the transmission layer number indication information.
结合上述各个方面及可能的设计，在一种可能的设计中，参考信号是侦听参考信号SRS。Combining the above aspects and possible designs, in one possible design, the reference signal is the listening reference signal SRS.
第五方面，本申请实施例提供了一种计算机可读存取介质，用于存储指令，当所述指令在计算机上运行时，使得所述计算机执行上述各方面及可能的设计中的方法。In a fifth aspect, embodiments of the present application provide a computer-readable access medium for storing instructions. When the instructions are run on a computer, they cause the computer to execute the methods in the above aspects and possible designs.
第六方面，本申请实施例提供了一种通信装置，该装置包括处理器和与所述处理器耦合的存储器，所述存储器用于存储指令，所述处理器用于读取并调用所述指令，以执行上述各方面及可能的设计中的方法。In a sixth aspect, embodiments of the present application provide a communication device. The device includes a processor and a memory coupled to the processor. The memory is used to store instructions, and the processor is used to read and call the instructions. , to implement the above aspects and possible methods in the design.
第七方面，本申请实施例提供了一种计算机程序，当该计算机程序被执行时，可以执行上述各方面及可能的设计中的方法。In a seventh aspect, embodiments of the present application provide a computer program. When the computer program is executed, the methods in the above aspects and possible designs can be executed.
附图说明Description of drawings
图1为本发明实施例提供的一种应用场景示意图；Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present invention;
图2为本发明实施例提供的一种通信设置的结构示意图；Figure 2 is a schematic structural diagram of a communication setup provided by an embodiment of the present invention;
图3为本发明实施例提供的一种通信设备的结构示意图；Figure 3 is a schematic structural diagram of a communication device provided by an embodiment of the present invention;
图4为本发明实施例提供的一种通信方法的流程示意图；Figure 4 is a schematic flow chart of a communication method provided by an embodiment of the present invention;
图4a为本发明实施例提供的一种物理资源结构示意图；Figure 4a is a schematic diagram of a physical resource structure provided by an embodiment of the present invention;
图4b为发明实施例提供的一种SRS的占用的时频资源的示意图；Figure 4b is a schematic diagram of time-frequency resources occupied by an SRS provided by an embodiment of the invention;
图4c为本发明实施例提供的一种连续时间段的DM-RS占用的时频资源的示意图；Figure 4c is a schematic diagram of time-frequency resources occupied by DM-RS in a continuous time period provided by an embodiment of the present invention;
图5为本发明实施例提供的另一种通信方法的流程示意图；Figure 5 is a schematic flow chart of another communication method provided by an embodiment of the present invention;
具体实施方式Detailed ways
本申请实施例可用于无线通信系统，例如：全球移动通信(Global System ofMobile communication，GSM)系统，码分多址(Code Division Multiple Access，CDMA)系统，宽带码分多址(Wideband Code Division Multiple Access Wireless，WCDMA)系统，通用分组无线业务(General Packet Radio Service，GPRS)系统，通用移动通信系统(Universal Mobile Telecommunications System，UMTS)，以及长期演进(Long TermEvolution，LTE)系统及其演进系统，新空口(New Radio，NR)系统。Embodiments of the present application can be used in wireless communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access) Wireless (WCDMA) system, General Packet Radio Service (GPRS) system, Universal Mobile Telecommunications System (UMTS), and Long Term Evolution (LTE) system and its evolution system, new radio interface (New Radio, NR) system.
图1为本申请实施例提供的通信系统的示意图。如图1所示，该通信系统包括基站101和至少一个终端设备，这里以两个终端设备为例进行说明，该两个终端设备分别为终端设备111和终端设备112，其中，终端设备111和终端设备112处在基站101覆盖范围内并与基站101进行通信，以实施下述各本申请实施例提供的技术方案。示例性地，基站101是NR系统的基站，终端设备101和终端设备102是对应的NR系统的终端设备。Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in Figure 1, the communication system includes a base station 101 and at least one terminal device. Here, two terminal devices are taken as an example. The two terminal devices are terminal device 111 and terminal device 112 respectively. Among them, terminal device 111 and The terminal device 112 is within the coverage of the base station 101 and communicates with the base station 101 to implement the following technical solutions provided by the embodiments of the present application. For example, the base station 101 is a base station of the NR system, and the terminal device 101 and the terminal device 102 are corresponding terminal devices of the NR system.
本申请实施例结合网络设备和终端设备描述了各个实施例，该网络设备和终端设备可以工作在许可频段或免许可频段上，其中：The embodiments of this application describe various embodiments in combination with network equipment and terminal equipment. The network equipment and terminal equipment can work on licensed frequency bands or license-exempt frequency bands, where:
终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备可以是无线局域网(Wireless Local Area Networks，WLAN)中的站点(STATION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session InitiationProtocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统，例如，第五代通信(the fifth-generation，5G)网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备，NR系统中的终端设备等。Terminal equipment can also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user Agent or user device. The terminal device may be a station (STATION, ST) in a wireless local area network (Wireless Local Area Networks, WLAN), a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, or a wireless local loop (Wireless Local Loop). , WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as , terminal equipment in the fifth-generation communication (the fifth-generation, 5G) network or terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, terminal equipment in the NR system, etc.
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones. Use, such as various types of smart bracelets, smart jewelry, etc. for physical sign monitoring.
此外，网络设备可以是用于与移动设备通信的设备。网络设备可以是WLAN中的接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备，或NR系统中的新一代基站(new generation NodeB，gNodeB)等。Additionally, the network device may be a device used to communicate with mobile devices. The network device can be an Access Point (AP) in WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, or a base station in LTE. Evolutionary base station (Evolutional Node B, eNB or eNodeB), or relay station or access point, or vehicle equipment, wearable devices and network equipment in future 5G networks or network equipment in future evolved PLMN networks, or NR systems New generation base station (new generation NodeB, gNodeB), etc.
另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信。该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站。这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。In addition, in this embodiment of the present application, the network device provides services for the cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (eg, a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here can include: Metro cells, Micro cells, Pico cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power. , suitable for providing high-speed data transmission services.
此外，LTE系统或NR系统中的载波上可以同时有多个小区同频工作，在某些特殊场景下，也可以认为上述载波与小区的概念等同。例如在载波聚合(Carrier Aggregation，CA)场景下，当为UE配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(Cell Identify，Cell ID)，在这种情况下，可以认为载波与小区的概念等同，比如UE接入一个载波和接入一个小区是等同的。In addition, a carrier in an LTE system or NR system can have multiple cells working on the same frequency at the same time. In some special scenarios, the concepts of the above-mentioned carriers and cells can also be considered the same. For example, in a Carrier Aggregation (CA) scenario, when a secondary carrier is configured for a UE, the carrier index of the secondary carrier and the Cell Identify (Cell ID) of the secondary cell operating on the secondary carrier will be carried. In this case, the concept of carrier and cell can be considered to be equivalent. For example, the UE accessing a carrier is the same as accessing a cell.
高层信令可以指：高层协议层发出的信令，高层协议层为物理层以上的每个协议层中的至少一个协议层。其中，高层协议层可以具体为以下协议层中的至少一个：媒体接入控制(Medium Access Control，MAC)层、无线链路控制(Radio Link Control，RLC)层、分组数据会聚协议(Packet Data Convergence Protocol，PDCP)层、无线资源控制(RadioResource Control，RRC)层和非接入层(Non Access Stratum，NAS)层等。High-level signaling may refer to: signaling sent by a high-level protocol layer, which is at least one protocol layer in each protocol layer above the physical layer. The high-level protocol layer may be specifically at least one of the following protocol layers: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, and a Packet Data Convergence Protocol (Packet Data Convergence) layer. Protocol, PDCP) layer, Radio Resource Control (Radio Resource Control, RRC) layer and Non Access Stratum (Non Access Stratum, NAS) layer, etc.
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。It should be understood that the term "and/or" used in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and A exist simultaneously. B, there are three situations of B alone.
应当理解，本文中使用的术语“在X内没有”，X内包括X上的任一时刻、X的起始时刻、X的终止时刻。“在X内没有”可以表示在X内的时刻都没有，也可以表示是在X内的时刻中一个或多个时刻没有，本申请不做限定。It should be understood that the term "not within X" used in this article includes any time on X, the starting time of X, and the ending time of X. "Not within
其中，本文中使用的术语“时域资源”，泛指第一时域资源、第二时域资源和第三时域资源等。“频域资源”，泛指第一频域资源、第二频域资源和第三频域资源等。Among them, the term "time domain resources" used in this article generally refers to first time domain resources, second time domain resources, third time domain resources, etc. "Frequency domain resources" generally refers to first frequency domain resources, second frequency domain resources, third frequency domain resources, etc.
图2示出了本发明实施例提供的一种无线通信设备，该无线通信设备可以作为网络设备101或者应用于网络设备101中的装置。下面以该无线通信设备为网络设备101为例进行说明。该网络设备101能够执行本发明实施例提供的方法。该网络设备101可以包括：用于实现无线通信功能的处理器201和收发器202。Figure 2 shows a wireless communication device provided by an embodiment of the present invention. The wireless communication device can be used as a network device 101 or applied to a device in the network device 101. The following description takes the wireless communication device as the network device 101 as an example. The network device 101 can execute the method provided by the embodiment of the present invention. The network device 101 may include: a processor 201 and a transceiver 202 for implementing wireless communication functions.
处理器201可以是调制解调器处理器(modem processor)。处理器201可包括基带处理器(baseband processor，BBP)，该基带处理器处理经数字化的收到信号以提取该信号中承载的信息或数据比特。为此目的，BBP通常由处理器201内的一个或多个数字信号处理器(digital signal processor，DSP)中或由分开的集成电路(integrated circuit，IC)来实现。The processor 201 may be a modem processor. Processor 201 may include a baseband processor (BBP) that processes a digitized received signal to extract the information or data bits carried in the signal. To this end, BBP is typically implemented in one or more digital signal processors (DSPs) within the processor 201 or in a separate integrated circuit (IC).
收发器202可以用于支持网络设备101与终端设备之间收发信息。在上行链路，来自终端设备的上行链路射频信号经由天线接收，由收发器202进行调解，提取基带信号并输出至处理器201进行处理，来恢复终端设备所发送的业务数据和/或信令信息。在下行链路上，承载着将要向终端设备发送的业务数据和/或信令消息的基带信号由收发器202进行调制，来产生下行链路的射频信号，并经由天线发射给UE。收发器202可以包括独立的接收器和发送器电路，也可以集成在同一个电路实现收发功能。The transceiver 202 may be used to support the sending and receiving of information between the network device 101 and the terminal device. In the uplink, the uplink radio frequency signal from the terminal device is received through the antenna, mediated by the transceiver 202, and the baseband signal is extracted and output to the processor 201 for processing to restore the service data and/or information sent by the terminal device. order information. On the downlink, the baseband signal carrying the service data and/or signaling messages to be sent to the terminal device is modulated by the transceiver 202 to generate a downlink radio frequency signal and transmitted to the UE via the antenna. The transceiver 202 may include independent receiver and transmitter circuits, or may be integrated into the same circuit to implement transceiver functions.
所述网络设备101还可以包括存储器203，可以用于存储该网络设备101的程序代码和/或数据。The network device 101 may also include a memory 203, which may be used to store program codes and/or data of the network device 101.
所述网络设备101还可以包括通信单元204，用于支持所述网络设备101与其他网络实体进行通信。例如,用于支持所述网络设备101与核心网的网络设备等进行通信。The network device 101 may also include a communication unit 204 for supporting the network device 101 to communicate with other network entities. For example, it is used to support communication between the network device 101 and network devices of the core network.
在图2示出的实现方式中，处理器201可以分别与收发器202、存储器203和通信单元204耦合/连接。作为另一个替代方式，网络设备101还可以包括总线。收发器202、存储器203以及通信单元204可以通过总线与处理器201连接。例如，总线可以是外设部件互连标准(Peripheral Component Interconnect，PCI)总线或扩展工业标准结构(ExtendedIndustry Standard Architecture，EISA)总线等。所述总线可以包括地址总线、数据总线、以及控制总线等。In the implementation shown in Figure 2, the processor 201 may be coupled/connected with the transceiver 202, the memory 203 and the communication unit 204 respectively. As another alternative, the network device 101 may also include a bus. The transceiver 202, the memory 203 and the communication unit 204 may be connected to the processor 201 through a bus. For example, the bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus may include an address bus, a data bus, a control bus, etc.
图3示出了本发明实施例提供的另一种无线通信设备，该无线通信装设备可以作为终端设备111～112或者应用于终端设备111～112中的装置。以下以图3所示的无线通信设备为终端设备为例进行说明。该终端设备能够执行本发明实施例提供的方法。该终端设备可以是2个终端设备111～112中的任一个。所述终端设备包括收发器301、存储器303和用于实现无线通信功能的处理器304。Figure 3 shows another wireless communication device provided by an embodiment of the present invention. The wireless communication device can be used as the terminal equipment 111-112 or applied to a device in the terminal equipment 111-112. The following description takes the wireless communication device shown in Figure 3 as a terminal device as an example. The terminal device can execute the method provided by the embodiment of the present invention. The terminal device may be any one of the two terminal devices 111 to 112. The terminal device includes a transceiver 301, a memory 303, and a processor 304 for implementing wireless communication functions.
收发器301可以用于支持终端设备111～112与网络设备101之间收发信息。在下行链路，来自网络设备的下行链路射频信号经由天线接收，由收发器301进行调解，提取基带信号并输出至处理器304进行处理，来恢复网络设备所发送的业务数据和/或信令信息。在上行链路上，承载着将要向网络设备发送的业务数据和/或信令消息的基带信号由收发器301进行调制，来产生上行链路的射频信号，并经由天线发射给网络设备。收发器301可以包括独立的接收器和发送器电路，也可以集成在同一个电路实现收发功能。The transceiver 301 may be used to support the sending and receiving of information between the terminal devices 111-112 and the network device 101. In the downlink, the downlink radio frequency signal from the network device is received through the antenna, mediated by the transceiver 301, and the baseband signal is extracted and output to the processor 304 for processing to restore the service data and/or information sent by the network device. order information. On the uplink, the baseband signal carrying the service data and/or signaling messages to be sent to the network device is modulated by the transceiver 301 to generate an uplink radio frequency signal, and is transmitted to the network device via the antenna. The transceiver 301 may include independent receiver and transmitter circuits, or may be integrated into the same circuit to implement transceiver functions.
处理器304可以是调制解调器处理器(modem processor)。处理器304可包括基带处理器(baseband processor，BBP)，该基带处理器处理经数字化的收到信号以提取该信号中承载的信息或数据比特。为此目的，BBP通常由处理器304内的一个或多个数字信号处理器(digital signal processor，DSP)中或由分开的集成电路(integrated circuit，IC)来实现。Processor 304 may be a modem processor. Processor 304 may include a baseband processor (BBP) that processes a digitized received signal to extract the information or data bits carried in the signal. To this end, BBP is typically implemented in one or more digital signal processors (DSPs) within processor 304 or in a separate integrated circuit (IC).
例如，如图3所示，在处理器304的一个实现方式中，处理器304可包括编码器3041，调制器3042，解码器3043，解调器3044。编码器3041用于对待发送信号进行编码。例如，编码器3041可用于接收要在上行链路上发送的业务数据和/或信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码、或交织等)。调制器3042用于对编码器3041的输出信号进行调制。例如，调制器可对编码器的输出信号(数据和/或信令)进行符号映射和/或调制等处理，并提供输出采样。解调器3044用于对输入信号进行解调处理。例如，解调器3044处理输入采样并提供符号估计。解码器3043用于对解调后的输入信号进行解码。例如，解码器3043对解调后的输入信号解交织、和/或解码等处理，并输出解码后的信号(数据和/或信令)。For example, as shown in Figure 3, in one implementation of the processor 304, the processor 304 may include an encoder 3041, a modulator 3042, a decoder 3043, and a demodulator 3044. The encoder 3041 is used to encode the signal to be sent. For example, the encoder 3041 may be used to receive service data and/or signaling messages to be sent on the uplink, and process (eg, format, encode, or interleave, etc.) the service data and signaling messages. The modulator 3042 is used to modulate the output signal of the encoder 3041. For example, the modulator may perform symbol mapping and/or modulation on the output signal (data and/or signaling) of the encoder, and provide output samples. The demodulator 3044 is used to demodulate the input signal. For example, demodulator 3044 processes input samples and provides symbol estimates. The decoder 3043 is used to decode the demodulated input signal. For example, the decoder 3043 deinterleaves and/or decodes the demodulated input signal, and outputs the decoded signal (data and/or signaling).
处理器304接收可表示语音、数据或控制信息的数字化数据，并对这些数字化数据处理后以供传输。处理器304可以支持多种通信系统的多种无线通信协议中的一种或多种，例如长期演进(Long Term Evolution，LTE)通信系统，新空口(New Radio，NR)，通用移动通信系统(Universal Mobile Telecommunications System，UMTS)，高速分组接入(HighSpeed Packet Access，HSPA)等等。可选的，处理器304中也可以包括一个或多个存储器。The processor 304 receives digitized data that may represent voice, data or control information, and processes the digitized data for transmission. The processor 304 may support one or more of multiple wireless communication protocols of multiple communication systems, such as Long Term Evolution (LTE) communication system, New Radio (NR), Universal Mobile Communication System ( Universal Mobile Telecommunications System, UMTS), High Speed Packet Access (HighSpeed Packet Access, HSPA), etc. Optionally, the processor 304 may also include one or more memories.
所述终端设备还可以包括应用处理器(application processor)302，用于生成上述的可表示语音、数据或控制信息的数字化数据。The terminal device may also include an application processor (application processor) 302 for generating the above-mentioned digital data that can represent voice, data or control information.
处理器304和应用处理器302可以是集成在一个处理器芯片中。The processor 304 and the application processor 302 may be integrated into one processor chip.
存储器303用于存储用于支持所述终端设备通信的程序代码(有时也称为程序，指令，软件等)和/或数据。The memory 303 is used to store program codes (sometimes also called programs, instructions, software, etc.) and/or data used to support communication with the terminal device.
需要说明的是，存储器203或存储器303可以包括一个或多个存储单元，例如，可以是用于存储程序代码的处理器201或处理器304或应用处理器302内部的存储单元，或者可以是与处理器201或处理器304或应用处理器302独立的外部存储单元，或者还可以是包括处理器201或处理器304或应用处理器302内部的存储单元以及与处理器201或处理器304或应用处理器302独立的外部存储单元的部件。It should be noted that the memory 203 or the memory 303 may include one or more storage units, for example, it may be a storage unit inside the processor 201 or the processor 304 or the application processor 302 for storing program codes, or it may be a storage unit with The processor 201 or the processor 304 or the application processor 302 is an independent external storage unit, or it may also include a storage unit inside the processor 201 or the processor 304 or the application processor 302 and is connected to the processor 201 or the processor 304 or the application. The processor 302 is a component independent of the external memory unit.
处理器201和处理器304可以是相同类型的处理器，也可以是不同类型的处理器。例如可以实现在中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific IntegratedCircuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件、其他集成电路、或者其任意组合。处理器201和处理器304可以实现或执行结合本发明实施例公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能器件的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合或者片上系统(system-on-a-chip，SOC)等等。The processor 201 and the processor 304 may be the same type of processor, or may be different types of processors. For example, it can be implemented in a central processing unit (Central Processing Unit, CPU), general-purpose processor, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), field programmable gate array (Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, other integrated circuits, or any combination thereof. Processor 201 and processor 304 may implement or execute the various exemplary logical blocks, modules and circuits described in connection with the disclosure of embodiments of the present invention. The processor may also be a combination of devices that implement computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, or a system-on-a-chip (SOC), etc.
本领域技术人员能够理解，结合本申请所公开的诸方面描述的各种解说性逻辑块、模块、电路和算法可被实现为电子硬件、存储在存储器中或另一计算机可读介质中并由处理器或其它处理设备执行的指令、或这两者的组合。作为示例，本文中描述的设备可用在任何电路、硬件组件、IC、或IC芯片中。本申请所公开的存储器可以是任何类型和大小的存储器，且可被配置成存储所需的任何类型的信息。为清楚地解说这种可互换性，以上已经以其功能性的形式一般地描述了各种解说性组件、框、模块、电路和步骤。此类功能性如何被实现取决于具体应用、设计选择和/或加诸于整体系统上的设计约束。本领域技术人员可针对每种特定应用以不同方式来实现所描述的功能性，但此类实现决策不应被解读为致使脱离本发明的范围。Those skilled in the art will appreciate that the various illustrative logical blocks, modules, circuits, and algorithms described in connection with the aspects disclosed herein may be implemented as electronic hardware, stored in a memory or another computer-readable medium, and transmitted by Instructions executed by a processor or other processing device, or a combination of the two. By way of example, the devices described herein may be used in any circuit, hardware component, IC, or IC chip. The memory disclosed herein can be any type and size of memory and can be configured to store any type of information desired. To clearly illustrate this interchangeability, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. How such functionality is implemented depends on the specific application, design choices, and/or design constraints imposed on the overall system. Skilled artisans may implement the described functionality in various ways for each particular application, but such implementation decisions should not be construed as causing a departure from the scope of the invention.
为了方便描述，下面以网络设备为网络设备101，终端设备为终端设备111为例，进行说明。For convenience of description, the following description takes the network device as the network device 101 and the terminal device as the terminal device 111 as an example.
为方便描述，本申请中的频域单元可以是物理资源块(Physical ResourceBlock，PRB)，或者是资源块组(Resource Block Group，RBG)或者是子载波，或者是其它频域单元，本发明不作限制。For the convenience of description, the frequency domain unit in this application can be a physical resource block (Physical ResourceBlock, PRB), or a resource block group (RBG), a subcarrier, or other frequency domain units. This invention does not limit.
图4所示为一种信息发送方法的流程示意图。图4所示的实施例包括如下步骤：Figure 4 shows a schematic flow chart of an information sending method. The embodiment shown in Figure 4 includes the following steps:
S401，网络设备101向终端设备111发送参考信号的配置信息，配置信息用于指示参考信号用于解调数据。相应的，终端设备从网络设备接收参考信号的配置信息。S401. The network device 101 sends the configuration information of the reference signal to the terminal device 111. The configuration information is used to indicate that the reference signal is used for demodulating data. Correspondingly, the terminal device receives the configuration information of the reference signal from the network device.
参考信号可以是侦听参考信号(sounding reference signal，SRS)，或者相位跟踪参考信号，或者是其它上行参考信号，本发明不作限制。为了方便起见，以下以SRS为例进行描述。The reference signal may be a sounding reference signal (SRS), a phase tracking reference signal, or other uplink reference signals, which is not limited by the present invention. For convenience, the following description takes SRS as an example.
S401可选。S401 optional.
可以替换的，可以在协议中固定配置SRS用于解调数据。Alternatively, SRS can be fixedly configured in the protocol for demodulating data.
S401中网络设备101的操作可以由收发器202来执行，或者由处理器201通过收发器202执行。S401中终端设备111的操作可以由由收发器301来执行，或者由处理器304通过收发器301来执行。The operation of the network device 101 in S401 may be performed by the transceiver 202, or by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S401 may be performed by the transceiver 301 , or by the processor 304 through the transceiver 301 .
具体的，配置信息可以包含在高层信令中，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。配置信息也可以是在协议中固定。本发明实施例以高层信令是RRC层信令为例，进行描述。Specifically, the configuration information may be included in high-layer signaling, which may be MAC layer signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling, which is not limited by the present invention. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Configuration information can also be fixed in the protocol. The embodiment of the present invention is described by taking the high-layer signaling as RRC layer signaling as an example.
现有技术中，RRC信令中的SRS的配置信息中包含SRS的功能，比如SRS的功能为用于非码本上行传输，用于码本上行传输，用于波束管理，用于天线轮询等，每种功能对应的SRS资源的配置参数以及SRS的发送方式不同。In the existing technology, the configuration information of SRS in RRC signaling includes the functions of SRS. For example, the functions of SRS are for non-codebook uplink transmission, for codebook uplink transmission, for beam management, and for antenna polling. etc. The configuration parameters of the SRS resources corresponding to each function and the SRS sending method are different.
进一步的，SRS的配置信息包含SRS资源配置信息。具体的，比如SRS资源的端口数、所占的OFDM符号数以及时域位置、SRS的跳频带宽、SRS的最大跳频域带宽、循环移位码(Cyclic shift，CS)、传输梳齿(Transmission Comb)、序列索引值(sequence ID)、传输波束信息等。Further, the SRS configuration information includes SRS resource configuration information. Specifically, such as the number of ports of the SRS resource, the number of OFDM symbols occupied and the time domain position, the frequency hopping bandwidth of the SRS, the maximum frequency hopping domain bandwidth of the SRS, cyclic shift code (Cyclic shift, CS), transmission comb ( Transmission Comb), sequence index value (sequence ID), transmission beam information, etc.
本发明实施例中，SRS的功能可以配置为用于解调，该功能不同于上述功能。比如，当网络设备101接收到终端设备111在PUSCH资源上发送的信息后，网络设备101可以使用与PUSCH关联的DM-RS和用于解调的SRS进行信道估计。此时，可以有更多的时频域资源用于信道估计，可以有效提升信道估计性能，从而保证PUSCH解码性能。In the embodiment of the present invention, the function of SRS can be configured for demodulation, which function is different from the above-mentioned function. For example, after the network device 101 receives the information sent by the terminal device 111 on the PUSCH resource, the network device 101 can use the DM-RS associated with the PUSCH and the SRS used for demodulation to perform channel estimation. At this time, more time-frequency domain resources can be used for channel estimation, which can effectively improve channel estimation performance, thereby ensuring PUSCH decoding performance.
S402，网络设备101向终端设备111发送第一下行控制信息(Downlink ControlInformation，DCI)。相应在，终端设备111接收所述DCI。S402: The network device 101 sends the first downlink control information (Downlink Control Information, DCI) to the terminal device 111. Correspondingly, the terminal device 111 receives the DCI.
S402中网络设备101的操作可以由收发器202执行，或者由处理器201通过收发器202执行。S402中终端设备111的操作可以由收发器301来执行，或者由处理器304通过收发器301来执行。The operation of the network device 101 in S402 may be performed by the transceiver 202, or by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S402 may be performed by the transceiver 301, or by the processor 304 through the transceiver 301.
具体的，第一DCI包括第一时间段的第一上行物理资源的信息。其中，第一时间段的长度可以是一个调度时间单位的长度，比如第一时间段的长度可以是一个子帧(Subframe)的长度，或者一个时隙(Slot)的长度，或者一个迷你时隙(Mini-Slot)的长度，或者一个传输时间间隔(Transmission Time Interval，TTI)的长度，或者包括X个OFDM符号(OFDM Symbol，简称OS)的长度，X为正整数，或者其它时间单位的长度，本发明不作限制。第一时间段的位置可以以检测到该第一DCI所在时间段为参考，在检测到该第一DCI的时间段开始的第n个时间段确定为第一时间段。本发明不作限制，以下以第一时间段的长度为一个Slot为例进行描述。Specifically, the first DCI includes information about the first uplink physical resource in the first time period. The length of the first time period may be the length of a scheduling time unit. For example, the length of the first time period may be the length of a subframe (Subframe), or the length of a time slot (Slot), or a mini time slot. (Mini-Slot), or the length of a Transmission Time Interval (TTI), or the length including X OFDM Symbols (OFDM Symbol, OS for short), X is a positive integer, or the length of other time units , the present invention is not limited. The position of the first time period may be based on the time period in which the first DCI is detected, and the nth time period starting from the time period in which the first DCI is detected is determined as the first time period. The present invention is not limited. The following description takes the length of the first time period as one Slot as an example.
第一上行物理资源的信息可以包括第一上行物理资源所占用的频域单元的数量N，N为大于或等于1的整数。第一上行物理资源的信息还可以包括第一上行物理资源的频域单元的频域位置。比如第一上行物理资源所占用的频域单元为哪几个PRB等。例如，如图5所示，假设一个Slot包括14个OS，分别用OS0～OS13标识，第一上行物理资源所占用的频域单元包括10个PRB(即N＝10)，分别用PRB10～PRB19标识，时域上占用14个OS，分别用OS0～OS13标识。The information about the first uplink physical resource may include the number N of frequency domain units occupied by the first uplink physical resource, where N is an integer greater than or equal to 1. The information about the first uplink physical resource may also include the frequency domain position of the frequency domain unit of the first uplink physical resource. For example, which PRBs are the frequency domain units occupied by the first uplink physical resource? For example, as shown in Figure 5, assume that a Slot includes 14 OSs, which are identified by OS0 to OS13 respectively. The frequency domain unit occupied by the first uplink physical resource includes 10 PRBs (that is, N=10), which are identified by PRB10 to PRB19. Identification, 14 OSs are occupied in the time domain, and they are identified by OS0~OS13 respectively.
可以理解的，第一上行物理资源包括PUSCH资源和/或PUCCH资源。本发明不作限制。以下以PUSCH资源为例进行说明。It can be understood that the first uplink physical resources include PUSCH resources and/or PUCCH resources. The invention is not limited. The following uses PUSCH resources as an example for explanation.
具体的，有两种PUSCH调度方式：集中式调度(PUSCH占用连续的PRB)和分布式调度(PUSCH占用非连续的PRB)。对于DFT-s-OFDM(Discrete Fourier Transform-Spread OFDM)波形，通常采用集中式调度方式调度小区边缘用户以提升发射功率的利用率。当采用集中式调度方式且DCI指示PUSCH所占的带宽大于或等于M个PRB时，DM-RS所占带宽为M个PRB，以确保DM-RS信道估计的性能从而确保与DM-RS关联的PUSCH的解调性能。同时，DM-RS所占的M个PRB的起始位置为PUSCH所占带宽的起始位置，例如图4a，这样可以保证用于补充DM-RS所占带宽的SRS的发送带宽为连续的，以提升通过SRS的信道估计性能。当DCI指示PUSCH所占的带宽小于所述M个PRB时，DM-RS所占带宽与相应的PUSCH所占的带宽相同，当DCI指示PUSCH所占的带宽大于所述M个PRB时，DM-RS所占带宽小于相应的PUSCH所占的带宽。对于分布式调度方式，且DCI指示PUSCH所占的带宽大于或等于M个PRB时，DM-RS所占带宽为M个PRB，且占用M个频域上连续的PRB，以确保DM-RS信道估计的性能从而确保与DM-RS关联的PUSCH的解调性能。当DCI指示PUSCH所占的带宽小于所述M个RB时，DM-RS所占带宽与相应的PUSCH所占的带宽相同。Specifically, there are two PUSCH scheduling methods: centralized scheduling (PUSCH occupies continuous PRBs) and distributed scheduling (PUSCH occupies non-contiguous PRBs). For DFT-s-OFDM (Discrete Fourier Transform-Spread OFDM) waveform, centralized scheduling is usually used to schedule cell edge users to improve transmission power utilization. When the centralized scheduling method is adopted and the DCI indicates that the bandwidth occupied by PUSCH is greater than or equal to M PRBs, the bandwidth occupied by DM-RS is M PRBs to ensure the performance of DM-RS channel estimation and ensure the performance of DM-RS associated with DM-RS. Demodulation performance of PUSCH. At the same time, the starting position of the M PRBs occupied by DM-RS is the starting position of the bandwidth occupied by PUSCH, such as Figure 4a. This ensures that the transmission bandwidth of the SRS used to supplement the bandwidth occupied by DM-RS is continuous. To improve the channel estimation performance through SRS. When the DCI indicates that the bandwidth occupied by PUSCH is less than the M PRBs, the bandwidth occupied by the DM-RS is the same as the bandwidth occupied by the corresponding PUSCH. When the DCI indicates that the bandwidth occupied by the PUSCH is greater than the M PRBs, the DM-RS The bandwidth occupied by RS is smaller than the bandwidth occupied by the corresponding PUSCH. For distributed scheduling, and DCI indicates that the bandwidth occupied by PUSCH is greater than or equal to M PRBs, the bandwidth occupied by DM-RS is M PRBs, and M continuous PRBs in the frequency domain are occupied to ensure the DM-RS channel The estimated performance thereby ensures the demodulation performance of the PUSCH associated with the DM-RS. When the DCI indicates that the bandwidth occupied by the PUSCH is less than the M RBs, the bandwidth occupied by the DM-RS is the same as the bandwidth occupied by the corresponding PUSCH.
第一DM-RS所占用的频域单元的数量M和/或频域位置可以是在协议中固定的值，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是UE特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。M代表是为终端设备111发送DM-RS配置的最大带宽，比如，假设频域单元是PRB，M＝8，表示终端设备111发送DM-RS的最大带宽为8个PRB。比如，第一DCI可以包括第一信令，第一信令用于指示第一DM-RS所占用的频域单元的数量M和/或频域位置，M为大于或等于1的整数。其中，M小于N。The number M of frequency domain units and/or the frequency domain position occupied by the first DM-RS may be a value fixed in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be In high-level signaling, the high-level signaling may be MAC layer signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling, which is not limited by the present invention. The high-level signaling may be UE-specific high-level signaling, cell-specific high-level signaling, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling may be physical layer control signaling. The physical layer control signaling may be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The present invention does not limit. M represents the maximum bandwidth configured for the terminal device 111 to send DM-RS. For example, assuming that the frequency domain unit is PRB, M=8, it means that the maximum bandwidth for the terminal device 111 to send DM-RS is 8 PRBs. For example, the first DCI may include first signaling, and the first signaling is used to indicate the number M and/or the frequency domain position of frequency domain units occupied by the first DM-RS, where M is an integer greater than or equal to 1. Among them, M is smaller than N.
该频域单元的数量M可以是一个数量预先配置的频域单元的数量的集合中的一个成员，该集合可以包括一个或多个成员。比如，上述集合包括{M1＝4，M2＝8，M3＝12}，M可以是集合{M1，M2，M3}中的一个，例如M＝M1＝4。上述集合可以是在协议中固定的集合，也可以是网络设备101通过信令发送给终端设备11，具体信令可以是步骤402中的信令，也可以是其它信令，本发明不作限制。例如，如图5所示，第一DM-RS所占用的频域单元的数量为4个PRB(即M＝4)，分别用PRB10～PRB13标识，时域上占用一个OS。The number M of frequency domain units may be a member of a set of a preconfigured number of frequency domain units, and the set may include one or more members. For example, the above set includes {M1=4, M2=8, M3=12}, and M may be one of the sets {M1, M2, M3}, for example, M=M1=4. The above set may be a fixed set in the protocol, or may be sent by the network device 101 to the terminal device 11 through signaling. The specific signaling may be the signaling in step 402, or other signaling, which is not limited by the present invention. For example, as shown in Figure 5, the number of frequency domain units occupied by the first DM-RS is 4 PRBs (that is, M=4), which are respectively identified by PRB10 to PRB13 and occupy one OS in the time domain.
当第一DCI可以包括第一信令，第一信令用于指示第一DM-RS所占用的频域单元的数量M和/或频域位置时，第一信令中包括的用于指示第一DM-RS所占用的频域单元的数量M的字段的取值和与第一DM-RS关联的PUSCH所占用的频域单元的数量N的关联关系。所述关联关系包括第一DMRS所占用的频域单元的位置和关联的PUSCH所占用的频域单元的位置关系，比如占用从PUSCH占用的索引值最低(或频率最低)的频域单元开始的M个索引值依次增大的频域单元，或者占用从PUSCH占用的索引值最高(或频率最高)的频域单元开始的M个索引值依次减小的频域单元，或者占用从某个PUSCH占用的频域单元开始的M个索引值依次增加或者减小的频域单元，或者占用PUSCH的频域起止位置之间的M个间距相同的M个频域资源。所述关联关系还可以包括第一DMRS所占用的频域单元的数量和关联的PUSCH所占用的频域单元的数量关系，比如占用从PUSCH占用的频域单元的1/2，或者1/4，或者1/8，或者与PUSCH所占用的频域单元数量相同。所述关联关系还可以既包括所述数量关系和所述位置关系。具体的指示方式比如，第一信令中包括2个比特用于指示第一DM-RS所占用的频域单元的数量M，其中，“00”表示第一DM-RS所占用的频域单元的数量M与关联的PUSCH的频域单元的数量N相同，“01”表示M＝N/2，“10”表示M＝N/4，“11”表示M＝N/8。上述M与N的关联关系可以称为DM-RS Pattern。本发明不对具体包含几个比特，以及具体取值与M和N的关联关系进行限制。上述DM-RS Pattern和/或用于指示第一DM-RS所占用的频域单元的数量M的字段的取值与所述DM-RS Pattern的对应关系可以是在协议中固定，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。进一步的，一个DM-RS Pattern对应一个DM-RS与PUSCH的频域单元的相对位置关系。比如，“00”代表DM-RS所占用的频域单元与PUSCH占用的频域单元相同，“01”代表M＝N/2，且占用PUSCH起始的N/4个频域单元和终止的N/4个频域单元，假设N＝12，M＝6，且PUSCH占用的频域单元为PRB10～PRB21，DM-RS占用PRB10～PRB12，以及PRB19～PRB21。此时，当第一时间段的信道是平坦的时，网络设备101可以进行频域滤波从而直接解调出整个PUSCH所占带宽上的数据，此时可以提高上行数据解调的效率。When the first DCI may include first signaling, and the first signaling is used to indicate the number M of frequency domain units and/or the frequency domain position occupied by the first DM-RS, the first signaling included in the first signaling is used to indicate There is an association relationship between the value of the field of the number M of frequency domain units occupied by the first DM-RS and the number N of frequency domain units occupied by the PUSCH associated with the first DM-RS. The association relationship includes the location of the frequency domain unit occupied by the first DMRS and the location relationship of the frequency domain unit occupied by the associated PUSCH, such as occupying the frequency domain unit starting from the frequency domain unit with the lowest index value (or the lowest frequency) occupied by the PUSCH. M frequency domain units with index values increasing sequentially, or occupying M frequency domain units with index values decreasing sequentially starting from the frequency domain unit with the highest index value (or highest frequency) occupied by PUSCH, or occupying the frequency domain units starting from a certain PUSCH The occupied frequency domain units start with M frequency domain units whose index values increase or decrease in sequence, or occupy M frequency domain resources with the same spacing between the starting and ending positions of the frequency domain of PUSCH. The association relationship may also include the relationship between the number of frequency domain units occupied by the first DMRS and the number of frequency domain units occupied by the associated PUSCH, such as occupying 1/2, or 1/4 of the frequency domain units occupied by the PUSCH. , or 1/8, or the same number of frequency domain units occupied by PUSCH. The association relationship may also include both the quantity relationship and the position relationship. For example, the specific indication method includes 2 bits in the first signaling to indicate the number M of frequency domain units occupied by the first DM-RS, where "00" indicates the frequency domain unit occupied by the first DM-RS. The number M is the same as the number N of associated PUSCH frequency domain units. "01" represents M=N/2, "10" represents M=N/4, and "11" represents M=N/8. The above-mentioned association relationship between M and N can be called DM-RS Pattern. The present invention does not limit the specific number of bits included, or the relationship between specific values and M and N. The corresponding relationship between the value of the DM-RS Pattern and/or the field used to indicate the number M of frequency domain units occupied by the first DM-RS and the DM-RS Pattern may be fixed in the protocol, or may be The network device 101 sends it to the terminal device 111 through signaling, where the signaling may be high-level signaling. The high-level signaling may be MAC layer signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling. , the invention is not limited. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. . Furthermore, a DM-RS Pattern corresponds to the relative positional relationship between a DM-RS and the frequency domain unit of PUSCH. For example, "00" means that the frequency domain unit occupied by DM-RS is the same as the frequency domain unit occupied by PUSCH. "01" means M=N/2, and it occupies the starting N/4 frequency domain units and the ending frequency domain unit of PUSCH. N/4 frequency domain units, assuming N=12, M=6, and the frequency domain units occupied by PUSCH are PRB10~PRB21, DM-RS occupies PRB10~PRB12, and PRB19~PRB21. At this time, when the channel in the first time period is flat, the network device 101 can perform frequency domain filtering to directly demodulate the data in the bandwidth occupied by the entire PUSCH, which can improve the efficiency of uplink data demodulation.
可选的，所述第一DM-RS所占用的频域资源的频域位置可以是上述第一上行物理资源中的从最低频率开始的M个连续的频域单元。例如，如图4a所示，假设上述第一上行物理资源为PRB索引(Index)为10～PRB索引(Index)19的10个PRB(即N＝10)，其中，PRB索引号越小，代表该PRB的频率位置越低(频点越低)，PRB索引号越大，代表该PRB的频率位置越高(频点越高)，则第一DMR所占用的频域资源的频域位置可以PRB索引号为10～PRB索引号为13的4个PRB(即M＝4)。或者，所述第一DM-RS所占用的频域资源的频域位置可以是上述第一上行物理资源中的从最高频率开始的M个连续的频域单元，比如假设上述第一上行物理资源为PRB索引(Index)为10～PRB索引(Index)19的10个PRB(即N＝10)则第一DM-RS所占用的频域资源的频域位置可以PRB索引号为16～PRB索引号为19的4个PRB(即M＝4)。或者，所述第一DM-RS所占用的频域资源的频域位置可以是上述第一上行物理资源中的M个离散的频域单元，比如假设上述第一上行物理资源为PRB索引(Index)为10～PRB索引(Index)19的10个PRB(即N＝10)则第一DM-RS所占用的频域资源的频域位置可以PRB索引号为10，PRB索引号为13，PRB索引号为15，PRB索引号为17共4个PRB(即M＝4)。或者，第一DM-RS所占用的频域资源的频域位置可以是第一上行物理资源从最低频率加预配置的频率偏移量Offset开始的M个连续的频域单元；所述第一上行物理资源从最高频率加预配置的频率偏移量Offset开始的M个连续的频域单元，Offset为正整数。Optionally, the frequency domain location of the frequency domain resource occupied by the first DM-RS may be M consecutive frequency domain units starting from the lowest frequency in the first uplink physical resource. For example, as shown in Figure 4a, assume that the above-mentioned first uplink physical resource is 10 PRBs (ie, N=10) with PRB index (Index) ranging from 10 to PRB index (Index) 19. The smaller the PRB index number, the smaller the PRB index number. The lower the frequency position of the PRB (the lower the frequency point), the larger the PRB index number, which means the higher the frequency position of the PRB (the higher the frequency point), then the frequency domain position of the frequency domain resource occupied by the first DMR can be There are 4 PRBs with PRB index numbers 10 to 13 (that is, M=4). Alternatively, the frequency domain position of the frequency domain resource occupied by the first DM-RS may be M consecutive frequency domain units starting from the highest frequency in the above-mentioned first uplink physical resource. For example, assuming that the above-mentioned first uplink physical resource For 10 PRBs whose PRB index (Index) is 10 to PRB Index (Index) 19 (that is, N=10), the frequency domain position of the frequency domain resource occupied by the first DM-RS can be PRB index number 16 to PRB Index There are 4 PRBs numbered 19 (that is, M=4). Alternatively, the frequency domain position of the frequency domain resource occupied by the first DM-RS may be M discrete frequency domain units in the first uplink physical resource. For example, assuming that the first uplink physical resource is a PRB index (Index ) is 10 to PRB index (Index) 19 (that is, N=10). The frequency domain position of the frequency domain resource occupied by the first DM-RS can be PRB index number 10, PRB index number 13, PRB The index number is 15, and the PRB index number is 17, a total of 4 PRBs (that is, M=4). Alternatively, the frequency domain position of the frequency domain resource occupied by the first DM-RS may be M consecutive frequency domain units of the first uplink physical resource starting from the lowest frequency plus the preconfigured frequency offset Offset; the first The uplink physical resource consists of M consecutive frequency domain units starting from the highest frequency plus the preconfigured frequency offset Offset, where Offset is a positive integer.
可选的，上述第一DM-RS所占用的频域资源的频域位置可以是预先配置的频域单元的频域位置的集合中的一个成员，该集合可以包括一个或多个成员。比如，预先配置的频域单元的频域位置的集合包括{最低频率开始的M1个连续的频域单元，最高频率开始的M1个连续的频域单元，M1个离散的频域单元，最低频率开始的M2个连续的频域单元，最高频率开始的M2个连续的频域单元，M2个离散的频域单元，最低频率开始的M3个连续的频域单元，最高频率开始的M3个连续的频域单元，M3个离散的频域单元}。上述频域位置的集合可以是在协议中固定的集合，也可以是网络设备101通过信令发送给终端设备11，具体信令可以是步骤402中的信令，也可以是其它信令，本发明不作限制。可以理解的，第一上行物理资源包括第一DM-RS所占用的资源。进一步的，N是M的整数倍，比如N＝2*M，或者N＝3*M等。当第一时间段的信道频选严重时，此时第一时间段上承载的PUSCH的不同子带上的信道质量(如SINR)差异较大，则不同子带上最优选的传输PUSCH采用的预编码矩阵不同。然而，其DM-RS/PUSCH的预编码指示信息对应的是整个PUSCH的调度带宽，也就是承载PUSCH的不同子带上对应了相同的预编码矩阵，该预编码矩阵的选择是使得承载PUSCH的全部子带的性能尽可能平均，这样带来的问题是对于某些子带而言，该预编码矩阵并不是最优的，会使得这些子带上PUSCH的传输性能受到极大的影响，所以，DMRS可以仅占用PUSCH占用的部分子带从而使得预编码矩阵对于该部分子带而言是最优的。Optionally, the frequency domain location of the frequency domain resource occupied by the first DM-RS may be a member of a set of preconfigured frequency domain locations of frequency domain units, and the set may include one or more members. For example, the set of frequency domain positions of the preconfigured frequency domain units includes {M1 continuous frequency domain units starting from the lowest frequency, M1 continuous frequency domain units starting from the highest frequency, M1 discrete frequency domain units, the lowest frequency M2 continuous frequency domain units starting from the highest frequency, M2 continuous frequency domain units starting from the highest frequency, M2 discrete frequency domain units, M3 continuous frequency domain units starting from the lowest frequency, M3 continuous frequency domain units starting from the highest frequency Frequency domain unit, M3 discrete frequency domain units}. The above set of frequency domain locations may be a fixed set in the protocol, or may be sent by the network device 101 to the terminal device 11 through signaling. The specific signaling may be the signaling in step 402, or other signaling. This document There are no restrictions on inventions. It can be understood that the first uplink physical resources include resources occupied by the first DM-RS. Further, N is an integer multiple of M, such as N=2*M, or N=3*M, etc. When the channel frequency selection in the first time period is serious, and the channel quality (such as SINR) on different subbands of the PUSCH carried in the first time period is very different, then the most preferred transmission PUSCH on different subbands is The precoding matrices are different. However, the precoding indication information of DM-RS/PUSCH corresponds to the scheduling bandwidth of the entire PUSCH, that is, different subbands carrying PUSCH correspond to the same precoding matrix. The selection of the precoding matrix is such that the The performance of all subbands should be as average as possible. The problem caused by this is that for some subbands, the precoding matrix is not optimal, which will greatly affect the transmission performance of PUSCH on these subbands. Therefore, , DMRS can only occupy part of the subbands occupied by PUSCH, so that the precoding matrix is optimal for this part of the subbands.
第一DM-RS与第一上行物理资源关联，即第一DM-RS用于进行信道估计，以解码第一上行物理信道上发送的第一数据信息。第一DM-RS位于第一时间段。The first DM-RS is associated with the first uplink physical resource, that is, the first DM-RS is used for channel estimation to decode the first data information sent on the first uplink physical channel. The first DM-RS is located in the first time period.
可选的，第一DCI中还可以包括SRS触发请求。其中，SRS触发请求用于指示在第二时间段发送SRS，和/或,SRS触发请求用于指示在第二时间段上发送SRS所占用的频域单元(即SRS资源)，和/或，SRS触发请求用于指示在第二时间段上发送SRS所使用的资源图案(Pattern)，和/或，SRS触发请求用于指示发送第一DM-RS、第一数据信息以及在第二时间段上发送所述SRS所使用的空间滤波信息。该SRS与第一上行物理资源关联，即用于进行信道估计，以解码第一上行物理资源上发送的第一数据信息。第二时间段的长度可以参考第一时间段的长度，在此不作赘述。第二时间段可以与第一时间段是同一时间段，或者，第二时间段也可以位于第一时间段之前，或者，第二时间段也可以位于第一时间段之后，本发明不作限制，第二时间段与第一时间段的定时关系可以在协议中固定，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。比如，所述定时关系可以是一个时间偏移量，网络设备101可以在第一DCI中携带该时间偏移量信息通知给终端设备。例如，如图4a所示，SRS和第一DM-RS在同一个Slot，即第二时间段与第一时间段是同一时间段。SRS资源的频域单元的至少一部分与第一上行物理资源的频域单元的至少一部分重叠。比如，第一上行物理资源可以包括SRS所占用的所有的频域单元，或者第一上行物理资源可以包括SRS所占用的部分频域单元，本发明不作限制。例如，如图4a所示，第一上行物理资源所占用的频域单元PRB10～PRB19，SRS占用的频域单元为PRB16～PRB19。再例如，第一上行物理资源所占用的频域单元PRB10～PRB19，SRS占用的频域单元为PRB16～PRB23。进一步的，SRS占用的频域单元的至少一部分与第一DM-RS的资源占用的频域单元的至少一部分不同。例如，如图4a所示，第一上行物理资源所占用的频域单元PRB10～PRB19，第一DM-RS占用的频域单元为PRB10～PRB13，SRS占用的频域单元为PRB16～PRB19。再例如，第一上行物理资源所占用的频域单元PRB10～PRB19，第一DM-RS占用的频域单元为PRB10～PRB13，SRS占用的频域单元为PRB12～PRB15。再例如，第一上行物理资源所占用的频域单元PRB10～PRB19，第一DM-RS占用的频域单元为PRB10～PRB13，SRS占用的频域单元为PRB10～PRB15。可选的，SRS资源的频域单元包括所述第一上行物理资源的频域单元中没有被所述第一DM-RS所占用的频域单元中的一部分。可选的，SRS所占用的频域单元包括第一上行物理资源的频域单元中没有被第一DM-RS所占用的频域单元中的至少一部分。通过将DM-RS所占用的频域单元和SRS所占用的频域单元在频域上互补，可以获得第一上行物理资源的频域单元中更多频域单元的信道信息，从而有利于解调第一上行物理资源上传输的第一数据信息。Optionally, the first DCI may also include an SRS trigger request. Wherein, the SRS trigger request is used to indicate sending SRS in the second time period, and/or, the SRS trigger request is used to indicate the frequency domain unit (i.e., SRS resource) occupied by sending SRS in the second time period, and/or, The SRS trigger request is used to indicate the resource pattern (Pattern) used to send the SRS in the second time period, and/or the SRS trigger request is used to indicate the sending of the first DM-RS, the first data information and the second time period. Spatial filtering information used to send the SRS. The SRS is associated with the first uplink physical resource, that is, used for channel estimation to decode the first data information sent on the first uplink physical resource. The length of the second time period may refer to the length of the first time period, and will not be described in detail here. The second time period may be the same time period as the first time period, or the second time period may be located before the first time period, or the second time period may be located after the first time period, which is not limited by the present invention. The timing relationship between the second time period and the first time period may be fixed in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be high-level signaling, and the high-level signaling may be It is MAC layer signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling, and is not limited by the present invention. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. . For example, the timing relationship may be a time offset, and the network device 101 may carry the time offset information in the first DCI and notify the terminal device. For example, as shown in Figure 4a, the SRS and the first DM-RS are in the same slot, that is, the second time period and the first time period are the same time period. At least part of the frequency domain unit of the SRS resource overlaps with at least part of the frequency domain unit of the first uplink physical resource. For example, the first uplink physical resources may include all frequency domain units occupied by the SRS, or the first uplink physical resources may include part of the frequency domain units occupied by the SRS, which is not limited by the present invention. For example, as shown in Figure 4a, the frequency domain units occupied by the first uplink physical resource are PRB10 to PRB19, and the frequency domain units occupied by the SRS are PRB16 to PRB19. For another example, the frequency domain units occupied by the first uplink physical resource are PRB10 to PRB19, and the frequency domain units occupied by the SRS are PRB16 to PRB23. Further, at least part of the frequency domain unit occupied by the SRS is different from at least part of the frequency domain unit occupied by the resource of the first DM-RS. For example, as shown in Figure 4a, the frequency domain units occupied by the first uplink physical resource are PRB10~PRB19, the frequency domain units occupied by the first DM-RS are PRB10~PRB13, and the frequency domain units occupied by the SRS are PRB16~PRB19. For another example, the frequency domain units occupied by the first uplink physical resource are PRB10 to PRB19, the frequency domain units occupied by the first DM-RS are PRB10 to PRB13, and the frequency domain units occupied by the SRS are PRB12 to PRB15. For another example, the frequency domain units occupied by the first uplink physical resource are PRB10~PRB19, the frequency domain units occupied by the first DM-RS are PRB10~PRB13, and the frequency domain units occupied by the SRS are PRB10~PRB15. Optionally, the frequency domain units of the SRS resource include a part of the frequency domain units of the first uplink physical resource that are not occupied by the first DM-RS. Optionally, the frequency domain units occupied by the SRS include at least part of the frequency domain units of the first uplink physical resource that are not occupied by the first DM-RS. By complementing the frequency domain units occupied by DM-RS and the frequency domain units occupied by SRS in the frequency domain, channel information of more frequency domain units in the frequency domain units of the first uplink physical resource can be obtained, which is beneficial to solution Adjust the first data information transmitted on the first uplink physical resource.
可选的，第一DM-RS所占的频域单元与SRS所占的频域单元不完全重叠，即SRS所占的频域单元中存在至少部分频域单元不包含第一DM-RS所占的任意频域单元，比如，第一SRS所占的频域单元为PRB10～PRB15，第一DM-RS所占用的频域单元为PRB13～PRB16，则PRB10～PRB12不包含第一DM-RS所占用的任意频域单元。再比如，第一SRS所占的频域单元为PRB10～PRB15，第一DM-RS所占用的频域单元为PRB13～PRB15，则PRB10～PRB12不包含第一DM-RS所占用的任意频域单元。和/或，第一DM-RS所占的频域单元中存在至少部分频域单元不包含SRS所占的的任意频域单元。本申请各实施例中，SRS占用的频域单元与SRS资源的频域单元含义相同。Optionally, the frequency domain unit occupied by the first DM-RS does not completely overlap with the frequency domain unit occupied by the SRS, that is, at least some of the frequency domain units occupied by the SRS do not include the frequency domain unit occupied by the first DM-RS. Any frequency domain unit occupied by the first SRS is PRB10 ~ PRB15, and the frequency domain unit occupied by the first DM-RS is PRB13 ~ PRB16, then PRB10 ~ PRB12 do not include the first DM-RS Any frequency domain unit occupied. For another example, the frequency domain units occupied by the first SRS are PRB10~PRB15, and the frequency domain units occupied by the first DM-RS are PRB13~PRB15, then PRB10~PRB12 do not include any frequency domain occupied by the first DM-RS. unit. And/or, at least part of the frequency domain units occupied by the first DM-RS does not include any frequency domain unit occupied by the SRS. In each embodiment of the present application, the frequency domain unit occupied by the SRS has the same meaning as the frequency domain unit of the SRS resource.
SRS资源所使用的资源pattern可以是预先定义的，比如SRS仅占用第一DM-RS所占的频域单元和PUSCH所占的频域单元的补集。也可以是通过高层信令配置的，比如高层信令可以配置SRS所占的频域单元的数量和位置以及相应的跳频带宽，跳频带宽是在每个OFDM符号内SRS所占的频域单元数量，或者可以配置SRS所占的频域单元的数量和位置与PUSCH所占的频域单元的数量和位置的相对值，比如SRS所占的频域单元的数量为PUSCH所占的频域单元数量的1/2、1/4等，SRS所占的频域单元的起始位置为PUSCH所占的频域单元的起始位置或者终止位置等。也可以是通过高层信令配置多个上述SRS所占的频域单元的数量以及位置的绝对值或者相对于PUSCH的相对值，也就是多个SRS的资源pattern，之后通过指示DCI信令从多个所述SRS的资源pattern中选择一个确定SRS的资源pattern。The resource pattern used by the SRS resource may be predefined. For example, the SRS only occupies the complement of the frequency domain unit occupied by the first DM-RS and the frequency domain unit occupied by the PUSCH. It can also be configured through high-level signaling. For example, high-level signaling can configure the number and position of the frequency domain units occupied by the SRS and the corresponding frequency hopping bandwidth. The frequency hopping bandwidth is the frequency domain occupied by the SRS in each OFDM symbol. The number of units, or you can configure the relative value of the number and location of frequency domain units occupied by SRS and the number and location of frequency domain units occupied by PUSCH. For example, the number of frequency domain units occupied by SRS is the frequency domain occupied by PUSCH. 1/2, 1/4, etc. of the number of units. The starting position of the frequency domain unit occupied by SRS is the starting position or the ending position of the frequency domain unit occupied by PUSCH. It is also possible to configure the number and position of the frequency domain units occupied by multiple SRSs through high-level signaling. Select one of the resource patterns of the SRS to determine the resource pattern of the SRS.
若第一DCI中包括SRS触发请求且SRS触发请求触发了用于数据解调的SRS资源，则第一DM-RS所占用的频域单元的数量(或者发送带宽)小于第一上行物理资源的频域单元的数量。SRS所占用的频域单元的数量(或者发送带宽)可以根据第一上行物理资源或者进一步根据第一DM-RS所占用的频域单元确定。若第一DCI未包括SRS触发请求且SRS触发请求触发了用于数据解调的SRS资源，则第一DM-RS的占用的频域单元的数量和第一上行物理资源的频域单元的数量相同。进一步的SRS所占用的频域单元的数量基于第一上行物理资源的频域单元的数量以及与之关联的第一DM-RS所占用的频域单元的数量确定。If the first DCI includes an SRS trigger request and the SRS trigger request triggers SRS resources for data demodulation, the number of frequency domain units (or transmission bandwidth) occupied by the first DM-RS is less than the first uplink physical resource. The number of frequency domain units. The number of frequency domain units (or transmission bandwidth) occupied by the SRS may be determined based on the first uplink physical resource or further based on the frequency domain unit occupied by the first DM-RS. If the first DCI does not include an SRS trigger request and the SRS trigger request triggers SRS resources for data demodulation, then the number of occupied frequency domain units of the first DM-RS and the number of frequency domain units of the first uplink physical resource same. The number of frequency domain units occupied by further SRSs is determined based on the number of frequency domain units of the first uplink physical resource and the number of frequency domain units occupied by the associated first DM-RS.
可选的，第一DCI中是否包括触发用于数据解调的SRS资源的SRS触发请求是通过第一上行物理资源的频域单元的数量N来确定的。比如，如果N小于预先配置的值，则不包括触发用于数据解调的SRS资源的SRS触发请求，如果N大于或等于预先配置的值，则不包括触发用于数据解调的SRS资源的SRS触发请求。预先配置的值可以是在协议中固定的值，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。Optionally, whether the first DCI includes an SRS trigger request for triggering SRS resources used for data demodulation is determined by the number N of frequency domain units of the first uplink physical resource. For example, if N is less than the preconfigured value, the SRS trigger request that triggers the SRS resource for data demodulation is not included. If N is greater than or equal to the preconfigured value, the SRS resource that triggers the SRS resource for data demodulation is not included. SRS trigger request. The preconfigured value may be a value fixed in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be high-level signaling, and the high-level signaling may be MAC layer signaling. , RLC layer signaling, PDCP layer signaling, or RRC layer signaling, are not limited by the present invention. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. .
可选的，SRS所占用的频域单元的数量和/或频域位置、所占的OFDM符号的数量和/或OFDM符号的位置，以及SRS跳频带宽可以通过高层信令如RRC信令配置。进一步的，SRS所占用的频域单元的起始位置为PUSCH的频域单元中不包含与PUSCH关联的DM-RS的起始位置，以使得网络设备基于SRS进行未承载DM-RS的频域单元上的信道估计。可选的，SRS所占用的频域单元的数量(或者发送带宽)也可以根据基站通过高层信令配置的SRS的资源pattern确定，如前文所述，也可以根据基站通过第一DCI指示的SRS资源pattern确定。Optionally, the number and/or frequency domain position of the frequency domain units occupied by the SRS, the number of occupied OFDM symbols and/or the position of the OFDM symbols, and the SRS frequency hopping bandwidth can be configured through higher layer signaling such as RRC signaling. . Further, the starting position of the frequency domain unit occupied by the SRS is that the frequency domain unit of the PUSCH does not include the starting position of the DM-RS associated with the PUSCH, so that the network device performs frequency domain processing that does not carry the DM-RS based on the SRS. Channel estimation on the unit. Optionally, the number of frequency domain units (or transmission bandwidth) occupied by the SRS can also be determined according to the SRS resource pattern configured by the base station through high-level signaling. As mentioned above, it can also be determined according to the SRS indicated by the base station through the first DCI. The resource pattern is determined.
可选的，第一信令用于指示SRS所占用的频域单元的数量P，P为大于或等于1的整数。例如，如图4a所示，SRS占用的频域单元为PRB16～PRB19，即P＝4。Optionally, the first signaling is used to indicate the number P of frequency domain units occupied by the SRS, where P is an integer greater than or equal to 1. For example, as shown in Figure 4a, the frequency domain units occupied by SRS are PRB16 to PRB19, that is, P=4.
进一步的，第一DCI还可以包括传输层数指示信息，所述传输层数指示信息用于指示所述第一上行物理资源上数据传输的层数，所述SRS的端口数与所述传输层数指示信息指示的传输层数相同。进一步的，所述SRS的每一个端口与每一个传输层相对应，也就是说，每个SRS端口对应的预编码矩阵与每一个传输层对应的预编码矩阵相同。所述传输层数指示信息还用于指示所述第一DM-RS的端口数，进一步地，第一DCI中还包括DM-RS的端口指示信息，DM-RS端口指示信息用于指示第一DM-RS的端口号。所述每个SRS的端口与所述每个第一DM-RS的端口相对应，也就是说所述SRS的端口数与所述第一DM-RS的端口数相同，且每个SRS端口对应的预编码矩阵与每一个DM-RS端口对应的预编码矩阵相同。Further, the first DCI may also include transmission layer number indication information. The transmission layer number indication information is used to indicate the number of data transmission layers on the first uplink physical resource. The port number of the SRS is related to the transmission layer number. The number of transport layers indicated by the number indication information is the same. Further, each port of the SRS corresponds to each transmission layer, that is to say, the precoding matrix corresponding to each SRS port is the same as the precoding matrix corresponding to each transmission layer. The transmission layer number indication information is also used to indicate the port number of the first DM-RS. Further, the first DCI also includes the port indication information of the DM-RS, and the DM-RS port indication information is used to indicate the first DM-RS port indication information. DM-RS port number. The port of each SRS corresponds to the port of each first DM-RS, that is to say, the number of ports of the SRS is the same as the number of ports of the first DM-RS, and each SRS port corresponds to The precoding matrix is the same as the precoding matrix corresponding to each DM-RS port.
可选的，第一信令用于指示SRS所占用的频域单元的频域位置。具体方式与指示第一DM-RS所占用的频域单元的频域位置类似，在此不作限制。Optionally, the first signaling is used to indicate the frequency domain position of the frequency domain unit occupied by the SRS. The specific method is similar to indicating the frequency domain position of the frequency domain unit occupied by the first DM-RS, and is not limited here.
可替换的，SRS所占用的频域单元的数量P和/或SRS所占用的频域单元的频域位置可以在步骤S401中携带。Alternatively, the number P of frequency domain units occupied by the SRS and/or the frequency domain position of the frequency domain units occupied by the SRS may be carried in step S401.
可选的，网络设备或终端设备可以根据SRS资源的频域单元确定第一DM-RS所占用的频域单元；或者，可以根据第一DM-RS所占用的频域单元确定SRS资源的频域单元。Optionally, the network device or the terminal device may determine the frequency domain unit occupied by the first DM-RS based on the frequency domain unit of the SRS resource; or may determine the frequency domain unit of the SRS resource based on the frequency domain unit occupied by the first DM-RS. domain unit.
可选的，SRS可以占用第二时间段中的一个时域单元，或者占用第二时间段中的多个时域单元。本发明不作限制。比如，如图4b所示，假设第二时间段是一个Slot，该Slot包含14个OS，一个时域单元相当于一个OS，SRS可以占用第二时间段的最后一个OS，或者最后两个OS。当SRS占用多个时域单元时，SRS在不同时域单元上占用的频域单元可以不同。具体占用几个OS和/或哪几个OS可以在协议中固定，或者通过信令通知给终端设备，具体信令通知可以参考本发明实施例中的其它参数的配置方式，不再赘述。Optionally, the SRS may occupy one time domain unit in the second time period, or occupy multiple time domain units in the second time period. The invention is not limited. For example, as shown in Figure 4b, assuming that the second time period is a Slot, the Slot contains 14 OSs, and one time domain unit is equivalent to one OS. The SRS can occupy the last OS of the second time period, or the last two OSs. . When the SRS occupies multiple time domain units, the frequency domain units occupied by the SRS on different time domain units may be different. The specific number of occupied OSs and/or which OSs can be fixed in the protocol, or notified to the terminal device through signaling. The specific signaling notification can refer to the configuration method of other parameters in the embodiment of the present invention, and will not be described again.
可选的，第一DM-RS采用的预编码和SRS采用的预编码可以不同，所述第一上行物理资源上传输的上行数据可以既采用第一DM-RS的预编码也采用SRS的预编码。具体而言，所述第一上行物理资源上与第一DM-RS所占用的频域单元相同的上行数据采用与第一DM-RS相同的预编码，而所述第一上行物理资源上与SRS所占用的频域单元相同的上行数据采用与SRS相同的预编码；或者，假设第一时间段有N个OS，则前N/2个OS上传输的上行数据采用与第一DM-RS相同的预编码，则后N/2个OS上传输的上行数据采用与SRS相同的预编码。这样，可以提升空间分集增益。Optionally, the precoding used by the first DM-RS and the precoding used by the SRS may be different, and the uplink data transmitted on the first uplink physical resource may use both the precoding of the first DM-RS and the precoding of the SRS. coding. Specifically, the uplink data on the first uplink physical resource that is the same as the frequency domain unit occupied by the first DM-RS uses the same precoding as the first DM-RS, and the first uplink physical resource is the same as the frequency domain unit occupied by the first DM-RS. The uplink data in the same frequency domain unit occupied by the SRS adopts the same precoding as the SRS; or, assuming that there are N OSs in the first time period, the uplink data transmitted on the first N/2 OSs adopts the same precoding as the first DM-RS If the same precoding is used, the uplink data transmitted on the last N/2 OSs adopts the same precoding as SRS. In this way, the spatial diversity gain can be improved.
S403，终端设备111在第一时间段的第一上行物理资源上向网络设备101向发送第一数据信息和第一DM-RS。S403: The terminal device 111 sends the first data information and the first DM-RS to the network device 101 on the first uplink physical resource in the first time period.
进一步的，终端设备111在第二时间段发送SRS。具体的，终端设备111使用第二时间段中SRS所占用的的频域单元和时域单元上发送SRS。Further, the terminal device 111 sends the SRS in the second time period. Specifically, the terminal device 111 uses the frequency domain unit and time domain unit occupied by the SRS in the second time period to send the SRS.
S403中网络设备101的操作可以由收发器202执行，或者由处理器201通过收发器202执行。S403中终端设备111的操作可以由收发器301来执行，或者由处理器304通过收发器301来执行。The operation of the network device 101 in S403 may be performed by the transceiver 202, or by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S403 may be performed by the transceiver 301, or by the processor 304 through the transceiver 301.
具体的，终端设备111使用第一DM-RS占用的第一时间段中的时域单元发送第一DM-RS，终端设备111使用第一上行物理资源中没有被第一DM-RS占用的时域单元上发送第一数据信息。例如，如图4a所示，假设第一时间段与第二时间段相同，第一上行物理资源所占用的频域单元PRB10～PRB19，占用的时域单元为第一时间段(时隙)的OS0～OS3，第一DM-RS占用的频域单元为PRB10～PRB13，占用的时域单元为第一时间段(时隙)的OS0，SRS占用的频域单元为PRB16～PRB19，占用的时域单元为第一时间段(时隙)的OS13，则终端设备111使用第一时间段中的频域单元PRB10～PRB19，时域单元OS1～OS12发送第一数据信息。再例如，假设第一时间段与第二时间段不同，第一上行物理资源所占用的频域单元PRB10～PRB19，占用的时域单元为第一时间段(时隙)的OS0～OS3，第一DM-RS占用的频域单元为PRB10～PRB13，占用的时域单元为第一时间段(时隙)的OS0，SRS占用的频域单元为PRB16～PRB19，占用的时域单元为第二时间段(时隙)的OS13，则终端设备111使用第一时间段中的频域单元PRB10～PRB19，时域单元OS1～OS13发送第一数据信息。第一数据信息可以是用户数据，或者缓存状态信息，或者是高层信令信息，如RRC层信令。本发明不对第一数据信息的内容及类型进行限制。Specifically, the terminal device 111 uses the time domain unit in the first time period occupied by the first DM-RS to send the first DM-RS, and the terminal device 111 uses the time domain unit in the first uplink physical resource that is not occupied by the first DM-RS. The first data information is sent on the domain unit. For example, as shown in Figure 4a, assuming that the first time period and the second time period are the same, the frequency domain units PRB10 to PRB19 occupied by the first uplink physical resource are the occupied time domain units of the first time period (time slot). OS0~OS3, the frequency domain units occupied by the first DM-RS are PRB10~PRB13, and the time domain units occupied are OS0 in the first time period (time slot). The frequency domain units occupied by the SRS are PRB16~PRB19, and the occupied time domain units are PRB16~PRB19. The domain unit is OS13 of the first time period (time slot), then the terminal device 111 uses the frequency domain units PRB10 to PRB19 in the first time period, and the time domain units OS1 to OS12 to send the first data information. For another example, assume that the first time period is different from the second time period, the frequency domain units PRB10~PRB19 occupied by the first uplink physical resource are OS0~OS3 in the first time period (time slot), and the occupied time domain units are OS0~OS3 in the first time period (time slot). The frequency domain units occupied by a DM-RS are PRB10~PRB13, and the time domain units occupied are OS0 of the first time period (time slot). The frequency domain units occupied by SRS are PRB16~PRB19, and the time domain units occupied by the SRS are PRB16~PRB19 of the second time period. OS13 of the time period (time slot), then the terminal device 111 uses the frequency domain units PRB10 to PRB19 in the first time period and the time domain units OS1 to OS13 to send the first data information. The first data information may be user data, cache status information, or high-level signaling information, such as RRC layer signaling. The present invention does not limit the content and type of the first data information.
可选的，在步骤403之前，终端设备111或网络设备101判断第一上行物理资源的频域单元的数量N是否大于或等于预先配置的值，如果N大于或等于预先配置的值，终端设备111或网络设备101确定M<N。预先配置的值可以是在协议中固定的值，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是UE特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。网络设备101的操作可以由处理器201执行。S402中终端设备111的操作可以由处理器304执行。Optionally, before step 403, the terminal device 111 or the network device 101 determines whether the number N of frequency domain units of the first uplink physical resource is greater than or equal to a preconfigured value. If N is greater than or equal to the preconfigured value, the terminal device 111 or network device 101 determines that M<N. The preconfigured value may be a value fixed in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be high-level signaling, and the high-level signaling may be MAC layer signaling. , RLC layer signaling, PDCP layer signaling, or RRC layer signaling, are not limited by the present invention. The high-level signaling may be UE-specific high-level signaling, cell-specific high-level signaling, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. . Operations of network device 101 may be performed by processor 201. The operations of the terminal device 111 in S402 may be performed by the processor 304.
可选的，发送SRS的物理天线端口与发送第一DM-RS的物理天线端口相同，和/或，发送SRS所使用的预编码矩阵与发送第一DM-RS所使用的预编码矩阵相同，和/或，SRS的空间滤波信息与第一DM-RS的空间滤波信息相同，和/或，SRS的端口数与第一DM-RS的端口数相同，且SRS的端口与所述第一DM-RS的端口一一映射。第一DCI中包括传输层数的指示信息，SRS的每一个端口与每一个传输层相对应，也就是说，每个SRS端口对应的预编码矩阵与每一个传输层对应的预编码矩阵相同，表示发送每个SRS端口和发送每个传输层的数据采用相同的终端设备的物理天线端口，且各个物理天线端口之间的相位权值(co-phasing)相同。所述传输层数指示信息还用于指示所述第一DM-RS的端口数，进一步地，第一DCI中还包括DM-RS的端口指示信息，DM-RS端口指示信息用于指示第一DM-RS的端口号。所述每个SRS的端口与所述每个第一DM-RS的端口相对应，也就是说所述SRS的端口数与所述第一DM-RS的端口数相同，且每个SRS端口对应的预编码矩阵与每一个DM-RS端口对应的预编码矩阵相同。进一步地，发送所述第一DM-RS以及相应的上行数据采用的发送波束(空间滤波信息)也可以通过第一DCI通知，发送所述SRS采用的发送波束(空间滤波信息)也可以使用该第一DCI通知的发送波束。Optionally, the physical antenna port used to send the SRS is the same as the physical antenna port used to send the first DM-RS, and/or the precoding matrix used to send the SRS is the same as the precoding matrix used to send the first DM-RS, And/or, the spatial filtering information of the SRS is the same as the spatial filtering information of the first DM-RS, and/or the number of ports of the SRS is the same as the number of ports of the first DM-RS, and the ports of the SRS are the same as those of the first DM-RS. -RS ports are mapped one by one. The first DCI includes indication information of the number of transmission layers. Each port of the SRS corresponds to each transmission layer. That is to say, the precoding matrix corresponding to each SRS port is the same as the precoding matrix corresponding to each transmission layer. It means that the same physical antenna port of the terminal device is used to send each SRS port and the data of each transport layer, and the phase weight (co-phasing) between each physical antenna port is the same. The transmission layer number indication information is also used to indicate the port number of the first DM-RS. Further, the first DCI also includes the port indication information of the DM-RS, and the DM-RS port indication information is used to indicate the first DM-RS port indication information. DM-RS port number. The port of each SRS corresponds to the port of each first DM-RS, that is to say, the number of ports of the SRS is the same as the number of ports of the first DM-RS, and each SRS port corresponds to The precoding matrix is the same as the precoding matrix corresponding to each DM-RS port. Further, the transmission beam (spatial filtering information) used to transmit the first DM-RS and the corresponding uplink data can also be notified through the first DCI, and the transmission beam (spatial filtering information) used to transmit the SRS can also be notified using the first DCI. The transmit beam of the first DCI notification.
S404，网络设备101向终端设备111发送第二DCI。相应在，终端设备111接收所述第二DCI。S404: The network device 101 sends the second DCI to the terminal device 111. Correspondingly, the terminal device 111 receives the second DCI.
步骤S404可选。Step S404 is optional.
S404中网络设备101的操作可以由收发器202执行，或者由处理器201通过收发器202执行。S404中终端设备111的操作可以由收发器301来执行，或者由处理器304通过收发器301来执行。The operation of the network device 101 in S404 may be performed by the transceiver 202, or by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S404 may be performed by the transceiver 301, or by the processor 304 through the transceiver 301.
具体的，第二DCI包括第三时间段的第二上行物理资源的信息。其中，第三时间段含义与第一时间段含义类似，在此不作赘述。第二上行物理资源的信息与第一上行物理资源的信息含义类似，在此不作赘述。第三时间段在第一时间段之后，比如第三时间段是第一时间段之后与第一时间段相邻的时间段。再比如第三时间段是第一时间段之后且与第一时间段间隔Y个时间段，Y为正整数，即如果第一时间段记为时间段n，则第三时间段可以记为时间段n+Y。假设Y＝1，则第三时间段与第一时间段间隔1个时间段，即如果第一时间段记为时间段n，则第三时间段可以记为时间段n+2。Specifically, the second DCI includes information about the second uplink physical resource in the third time period. Among them, the meaning of the third time period is similar to that of the first time period, and will not be described again here. The information of the second uplink physical resource has a similar meaning to the information of the first uplink physical resource, and will not be described again here. The third time period is after the first time period. For example, the third time period is a time period after the first time period and adjacent to the first time period. For another example, the third time period is after the first time period and is separated from the first time period by Y time periods. Y is a positive integer. That is, if the first time period is recorded as time period n, then the third time period can be recorded as time. Segment n+Y. Assuming Y=1, the third time period is separated from the first time period by one time period, that is, if the first time period is recorded as time period n, the third time period can be recorded as time period n+2.
进一步的，第二上行物理资源的频域单元的至少一部分与第一上行物理资源的频域单元的至少一部分重叠。比如，如图4c所示，假设第一时间段为时间段n，第三时间段为时间段n+3，第一时间段中有填充的方框表示的PRB(PRB10～PRB19)为第一上行物理资源的频域单元，第三时间段中有填充的方框表示的PRB(PRB11～PRB17)为第二上行物理资源的频域单元，时间段n+1中有填充的方框表示的PRB为时间段n+1上的上行物理资源的频域单元,时间段n+2中有填充的方框表示的PRB为时间段n+2上的上行物理资源的频域单元。再比如，第一上行物理资源的频域单元包括第二上行物理资源的频域单元。Further, at least part of the frequency domain unit of the second uplink physical resource overlaps with at least part of the frequency domain unit of the first uplink physical resource. For example, as shown in Figure 4c, assume that the first time period is time period n, the third time period is time period n+3, and the PRBs (PRB10~PRB19) represented by the filled boxes in the first time period are the first The frequency domain unit of the uplink physical resource. The PRBs (PRB11~PRB17) represented by the filled boxes in the third time period are the frequency domain units of the second uplink physical resource. The PRBs (PRB11~PRB17) represented by the filled boxes in the time period n+1. The PRB is the frequency domain unit of the uplink physical resource in time period n+1, and the PRB represented by the filled box in time period n+2 is the frequency domain unit of the uplink physical resource in time period n+2. For another example, the frequency domain unit of the first uplink physical resource includes the frequency domain unit of the second uplink physical resource.
可选的，第二DCI还可以包括第二DM-RS所占用的频域单元的数量M’，M’为大于或等于1的整数。其中，M’小于N，且M’小于M。其中M’的含义及配置方式与M类似，在此不作赘述。由于第二上行物理资源和第一上行物理资源在频域上有部分重叠，即有一定的信道相关性，当使用第二上行物理资源进行上行数据传输时，可以减少第二上行物理资源上传输的上行数据对应的DM-RS的频域密度，从而能进一步提升第二上行物理资源上传输的上行数据对应的DM-RS的发射功率，保证DM-RS的传输性能，从而更好的进行信道估计，最终保证上行数据信息的解码性能。Optionally, the second DCI may also include the number M' of frequency domain units occupied by the second DM-RS, where M' is an integer greater than or equal to 1. Among them, M' is smaller than N, and M' is smaller than M. The meaning and configuration of M’ are similar to M and will not be described in detail here. Since the second uplink physical resource and the first uplink physical resource partially overlap in the frequency domain, that is, there is a certain channel correlation, when the second uplink physical resource is used for uplink data transmission, the transmission on the second uplink physical resource can be reduced. The frequency domain density of the DM-RS corresponding to the uplink data can further improve the transmit power of the DM-RS corresponding to the uplink data transmitted on the second uplink physical resource, ensuring the transmission performance of the DM-RS, thereby better performing the channel It is estimated that the decoding performance of uplink data information is ultimately guaranteed.
进一步的，第二DCI还可以包括第二DM-RS所占用的频域资源的频域位置。第二DM-RS所占用的频域资源的频域位置与第一DM-RS所占用的频域资源的频域位置含义及配置方式类似，在此不作赘述。Further, the second DCI may also include the frequency domain location of the frequency domain resource occupied by the second DM-RS. The frequency domain position of the frequency domain resource occupied by the second DM-RS is similar to the frequency domain position of the frequency domain resource occupied by the first DM-RS in meaning and configuration method, and will not be described again here.
第二上行物理资源包括PUSCH资源和/或PUCCH资源。本发明不作限制。The second uplink physical resources include PUSCH resources and/or PUCCH resources. The invention is not limited.
第二DCI携带的内容可以参考第一DCI携带的内容，在此不作赘述。The content carried by the second DCI may refer to the content carried by the first DCI, which will not be described in detail here.
第二DCI与第一DCI可以是同一个DCI，或者是不同一的DCI，本发明不作限制。The second DCI and the first DCI may be the same DCI, or they may be different DCIs, which are not limited by the present invention.
S405，终端设备111在第三时间段的第二上行物理资源上向网络设备101向发送第二数据信息和第二DM-RS。相应的，网络设备101在第三时间段的第二上行物理资源上接收第二数据信息和第二DM-RS。S405: The terminal device 111 sends the second data information and the second DM-RS to the network device 101 on the second uplink physical resource in the third time period. Correspondingly, the network device 101 receives the second data information and the second DM-RS on the second uplink physical resource in the third time period.
步骤S405可选。Step S405 is optional.
S405中网络设备101的操作可以由收发器202执行，或由处理器201通过收发器202执行。S402中终端设备111的操作可以由收发器301来执行，或由处理器304通过收发器301来执行。The operation of the network device 101 in S405 may be performed by the transceiver 202, or by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S402 may be performed by the transceiver 301, or by the processor 304 through the transceiver 301.
第二数据信息与第一数据信息含义类似，在此不作赘述。The meaning of the second data information is similar to that of the first data information and will not be described again here.
具体的，第二DM-RS所占用的频域单元的数量M’小于M。Specifically, the number M' of frequency domain units occupied by the second DM-RS is less than M.
可选的，当第三时间段与第一时间段的间隔小于或等于预先配置值时，终端设备111确定M’小于M。比如，预先配置的值为3，即当第一时间段与第三时间段间隔小于或等于3时，终端设备111确定M’小于M。该预先配置的值可以是在协议中固定的值，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。进一步的，第一上行物理资源的传输参数与第二上行物理资源的传输参数相同。此时，由于第二上行物理资源和第一上行物理资源有一定的信道相关性，当使用第二上行物理资源进行上行数据传输时，可以减少第二上行物理资源上传输的上行数据对应的DM-RS的频域密度，从而能进一步提升第二上行物理资源上传输的上行数据对应的DM-RS的发射功率，保证DM-RS的性能，从而更好的进行信道估计，最终保证上行数据信息的解码性能。Optionally, when the interval between the third time period and the first time period is less than or equal to the preconfigured value, the terminal device 111 determines that M' is less than M. For example, the preconfigured value is 3, that is, when the interval between the first time period and the third time period is less than or equal to 3, the terminal device 111 determines that M' is less than M. The preconfigured value may be a value fixed in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be high-level signaling, and the high-level signaling may be MAC layer signaling. The present invention does not limit the signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. . Further, the transmission parameter of the first uplink physical resource is the same as the transmission parameter of the second uplink physical resource. At this time, since the second uplink physical resource has a certain channel correlation with the first uplink physical resource, when the second uplink physical resource is used for uplink data transmission, the DM corresponding to the uplink data transmitted on the second uplink physical resource can be reduced. - RS frequency domain density, which can further increase the transmit power of DM-RS corresponding to the uplink data transmitted on the second uplink physical resource, ensuring the performance of DM-RS, thereby better performing channel estimation, and ultimately ensuring uplink data information decoding performance.
可选的，当第一时间段至第三时间段之间的至少一个时间段，或者所有时间段，或连续K个时间段，或累积K个时间段上，终端设备111都被分配了上行物理资源(比如PUSCH)，终端设备111确定M’小于M，其中K为大于或等于0的整数。比如，如图4c所示，终端设备111在第一时间段(时间段n)至第三时间段(时间段n+3)的每个时间段上都有上行物理资源。进一步的，第二上行物理资源的频域单元的至少一部分与第一上行物理资源的频域单元的至少一部分重叠，第二上行物理资源的频域单元的至少一部分与第一时间段至第三时间段之间的至少一个时间段上的上行物理资源的频域单元的至少一部分重叠。进一步的，第一时间段上的第一上行物理资源的频域单元包括第三时间段的第二上行物理资源的频域单元，且第一时间段至第三时间段之间的至少一个时间段上的上行物理资源的频域单元包括第三时间段的第二上行物理资源的频域单元。进一步的，第一上行物理资源的频域单元，第二上行物理资源的频域单元和第一时间段至第三时间段之间的至少一个时间段上的上行物理资源的频域单元相同。进一步的，第一时间段与第三时间段的间隔大于一个预先配置的值，或者，第一时间段至第三时间段之间的至少一个时间段的数量大于一个预先配置的值且第一时间段至第三时间段之间的间隔小于或等于一个预先配置的值。上述一个或多个预先配置的值可以是在协议中固定的值，也可以是网络设备101通过信令发送给终端设备111的，其中信令可以是在高层信令，所述高层信令可以是MAC层信令，RLC层信令，PDCP层信令，或者RRC层信令，本发明不作限制。所述高层信令可以是终端设备特定的高层信令，也可以是小区特定的高层信令，还可以是一组终端设备共享的高层信令，本发明不作限制。或者信令可以是物理层控制信令，物理层控制信令可以是终端设备特定的信令，也可以是小区特定的信令，还可以是一组终端设备共享的信令，本发明不作限制。进一步的，第一上行物理资源的传输参数与第一时间段至第三时间段之间的至少一个时间段上的上行物理资源的传输参数相同，且第一上行物理资源的传输参数与第二上行物理资源的传输参数相同。具体而言，所述传输参数包括传输层数信息，即第一上行物理资源和第二上行物理资源上数据传输的信道矩阵维度相同，从而利用第一上行物理资源上传输的第一DM-RS可以估计第二上行物理资源上传输的上行数据。所述传输参数也可以包括数据传输所占的频域资源的大小和位置，当第一上行物理资源和第二上行物理资源所占的频域资源相同时，可以利用第一上行物理资源上传输的第一DM-RS可以估计第二上行物理资源上传输的上行数据，从而进一步减小第二上行物理资源上传输的DM-RS所占用的频域单元。由于第二上行物理资源和第一上行物理资源以及第一时间段至第三时间段之间的至少一个时间段上的上行物理资源在时间上有一定的信道相关性终端设备111可以在连续的时间段进行上行传输，从而可以在使用后面的上行物理资源进行上行发送时，减少DM-RS的密度，能进一步提升DM-RS的发射功率，保证DM-RS的性能，同时，可以联合多个时间段的DM-RS进行信道估计，从而更好的进行信道估计，最终保证上行数据信息的解码性能。比如，如图4c所示，时间段n+1～n+2上的DM-RS占用PRB12～PRB18共7个PRB，时间段n+3的上DM-RS占用PRB15～PRB17共3个PRB，网络设备101可以利用n+3上的DM-RS与n+1～n+2上的DM-RS进行联合信道估计，从而接收n+3上的数据信息。Optionally, when at least one time period between the first time period and the third time period, or all time periods, or K consecutive time periods, or cumulative K time periods, the terminal device 111 is allocated the uplink. Physical resource (such as PUSCH), the terminal device 111 determines that M' is less than M, where K is an integer greater than or equal to 0. For example, as shown in Figure 4c, the terminal device 111 has uplink physical resources in each time period from the first time period (time period n) to the third time period (time period n+3). Further, at least part of the frequency domain unit of the second uplink physical resource overlaps with at least part of the frequency domain unit of the first uplink physical resource, and at least part of the frequency domain unit of the second uplink physical resource overlaps with the first time period to the third time period. At least a part of the frequency domain units of the uplink physical resources in at least one time period between the time periods overlap. Further, the frequency domain unit of the first uplink physical resource in the first time period includes the frequency domain unit of the second uplink physical resource in the third time period, and at least one time between the first time period and the third time period The frequency domain unit of the uplink physical resource on the segment includes the frequency domain unit of the second uplink physical resource in the third time period. Further, the frequency domain unit of the first uplink physical resource, the frequency domain unit of the second uplink physical resource and the frequency domain unit of the uplink physical resource in at least one time period between the first time period and the third time period are the same. Further, the interval between the first time period and the third time period is greater than a preconfigured value, or the number of at least one time period between the first time period to the third time period is greater than a preconfigured value and the first time period is greater than a preconfigured value. The interval between the time period and the third time period is less than or equal to a preconfigured value. The above one or more preconfigured values may be fixed values in the protocol, or may be sent by the network device 101 to the terminal device 111 through signaling, where the signaling may be high-level signaling, and the high-level signaling may be It is MAC layer signaling, RLC layer signaling, PDCP layer signaling, or RRC layer signaling, and is not limited by the present invention. The high-level signaling may be high-level signaling specific to a terminal device, high-level signaling specific to a cell, or high-level signaling shared by a group of terminal devices, which is not limited by the present invention. Or the signaling can be physical layer control signaling. The physical layer control signaling can be terminal equipment-specific signaling, cell-specific signaling, or signaling shared by a group of terminal equipment. The invention is not limited. . Further, the transmission parameter of the first uplink physical resource is the same as the transmission parameter of the uplink physical resource in at least one time period between the first time period and the third time period, and the transmission parameter of the first uplink physical resource is the same as the transmission parameter of the second uplink physical resource. The transmission parameters of the uplink physical resources are the same. Specifically, the transmission parameters include transmission layer number information, that is, the channel matrix dimensions of data transmission on the first uplink physical resource and the second uplink physical resource are the same, so as to utilize the first DM-RS transmitted on the first uplink physical resource. Uplink data transmitted on the second uplink physical resource can be estimated. The transmission parameters may also include the size and location of frequency domain resources occupied by data transmission. When the frequency domain resources occupied by the first uplink physical resource and the second uplink physical resource are the same, the first uplink physical resource may be used for uplink transmission. The first DM-RS can estimate the uplink data transmitted on the second uplink physical resource, thereby further reducing the frequency domain unit occupied by the DM-RS transmitted on the second uplink physical resource. Since the second uplink physical resource and the first uplink physical resource and the uplink physical resource in at least one time period between the first time period to the third time period have a certain channel correlation in time, the terminal device 111 can continuously time period for uplink transmission, thereby reducing the density of DM-RS when using subsequent uplink physical resources for uplink transmission, further improving the transmit power of DM-RS and ensuring the performance of DM-RS. At the same time, multiple The DM-RS in the time period performs channel estimation, thereby performing better channel estimation and ultimately ensuring the decoding performance of uplink data information. For example, as shown in Figure 4c, the DM-RS in time period n+1~n+2 occupies a total of 7 PRBs PRB12~PRB18, and the DM-RS in time period n+3 occupies a total of 3 PRBs PRB15~PRB17. The network device 101 can use the DM-RS on n+3 and the DM-RS on n+1 to n+2 to perform joint channel estimation, thereby receiving the data information on n+3.
可选的，终端设备在所述第一时间段与所述第三时间段之间的至少一个时间段的上行物理资源上发送DM-RS和数据信息，且所述至少一个时间段，第一时间段和第三时间段所包括的时间段中任意两个时间段的时间间隔小于K，K为大于或等于0的整数。Optionally, the terminal device sends DM-RS and data information on uplink physical resources in at least one time period between the first time period and the third time period, and in the at least one time period, the first The time interval between any two time periods included in the time period and the third time period is less than K, and K is an integer greater than or equal to 0.
进一步的，终端设备111在第一时间段和第三时间段中的至少一个时间段上的上行物理资源上发送DM-RS和数据信息。比如，如图4c所示，终端设备111在第一时间段(时间段n)至第三时间段(时间段n+3)的每个时间段上都有上行物理资源，则终端设备111可以在连续的时间段进行上行传输。Further, the terminal device 111 sends DM-RS and data information on the uplink physical resource in at least one of the first time period and the third time period. For example, as shown in Figure 4c, the terminal device 111 has uplink physical resources in each time period from the first time period (time period n) to the third time period (time period n+3), then the terminal device 111 can Upstream transmission takes place over a continuous period of time.
通过本发明和实施实施例的方法，利用多个时间段中的上行物理资源的时间相关性和频率相关性，减少DM-RS的密度，从而可以以更高的功率发射DM-RS，保证DM-RS的性能，从而更好的进行信道估计，最终保证上行数据信息的解码性能。Through the methods of the present invention and embodiments, the time correlation and frequency correlation of uplink physical resources in multiple time periods are used to reduce the density of DM-RS, so that DM-RS can be transmitted with higher power to ensure DM -RS performance, thereby better performing channel estimation and ultimately ensuring the decoding performance of uplink data information.
图5示出一本发明实施例二提供的方法的流程示意图。实施二包括如下步骤：Figure 5 shows a schematic flowchart of the method provided by Embodiment 2 of the present invention. Implementation 2 includes the following steps:
S501与S401类似，在此不作赘述。S501 is similar to S401 and will not be described in detail here.
S502，网络设备101向终端设备111发送下行控制信息(Downlink ControlInformation，DCI)。相应的，终端设备111接收所述DCI。S502: The network device 101 sends downlink control information (Downlink Control Information, DCI) to the terminal device 111. Correspondingly, the terminal device 111 receives the DCI.
DCI包括第一时间段的第一上行物理资源的信息，具体方式可以参考步骤S402中的描述。The DCI includes information about the first uplink physical resource in the first time period. For specific methods, please refer to the description in step S402.
DCI中还可以包括SRS触发请求，具体方式可以参考步骤S402中的描述。The DCI may also include an SRS trigger request. For specific methods, please refer to the description in step S402.
当第一上行物理资源包括PUSCH且PUSCH的传输模式为基于非码本的传输模式时，该DCI中的SRS资源选择指示(SRS resource Indicator，SRI)可以指示PUSCH以及相应的DM-RS的预编码方案和传输层数，SRI字段还可以进一步用于触发SRI对应的SRS资源。具体的，SRI指示SRS资源编号，终端设备111可以确定SRI指示的SRS资源编号对应的SRS资源的配置信息，并且该SRS资源上发送的SRS采用的预编码与该SRI之前且与该SRI时间最近的使用SRI指示的SRS资源编号对应的SRS资源上发送的SRS所采用的预编码相同。SRS资源与第一上行物理资源关联。When the first uplink physical resource includes PUSCH and the transmission mode of PUSCH is a non-codebook-based transmission mode, the SRS resource selection indication (SRS resource Indicator, SRI) in the DCI may indicate the precoding of PUSCH and corresponding DM-RS. The number of schemes and transmission layers, and the SRI field can be further used to trigger the SRS resources corresponding to the SRI. Specifically, the SRI indicates the SRS resource number. The terminal device 111 can determine the configuration information of the SRS resource corresponding to the SRS resource number indicated by the SRI, and the precoding used for the SRS sent on the SRS resource is before the SRI and is closest in time to the SRI. The precoding used by the SRS sent on the SRS resource corresponding to the SRS resource number indicated by the SRI is the same. The SRS resource is associated with the first uplink physical resource.
当第一上行物理资源包括PUSCH且PUSCH的传输模式为基于码本的传输模式时，DCI中的SRS资源选择指示(SRS resource Indicator，SRI)+秩指示(Transmission RankIndicator，TRI)+预编码指示(Transmission Precoding Matrix Indicator，TPMI)字段(Bit Field)用于指示传输与PUSCH关联的第一DM-RS的预编码方案。SRI+TRI+TPMI字段还可以同时指示与PUSCH关联的SRS的预编码方案，与PUSCH关联的SRS是指该SRS用于该PUSCH解调的信道估计，也就是说，第一DM-RS和与第一DM-RS关联的PUSCH的预编码方案与SRS的预编码方案相同，预编码方案是指信号或者数据传输采用的物理天线端口、天线端口数、天线端口之间的相位加权等。或者，在DCI中新增加一个字段指示与PUSCH关联的SRS的预编码方案和发送端口。When the first uplink physical resource includes PUSCH and the transmission mode of PUSCH is a codebook-based transmission mode, the SRS resource selection indicator (SRS resource Indicator, SRI) + rank indicator (Transmission Rank Indicator, TRI) + precoding indicator ( The Transmission Precoding Matrix Indicator (TPMI) field (Bit Field) is used to indicate the precoding scheme for transmitting the first DM-RS associated with the PUSCH. The SRI+TRI+TPMI field can also indicate the precoding scheme of the SRS associated with the PUSCH at the same time. The SRS associated with the PUSCH refers to the channel estimation used by the SRS for the PUSCH demodulation, that is, the first DM-RS and the The precoding scheme of the PUSCH associated with the first DM-RS is the same as the precoding scheme of the SRS. The precoding scheme refers to the physical antenna ports used for signal or data transmission, the number of antenna ports, the phase weighting between antenna ports, etc. Alternatively, a new field is added to the DCI to indicate the precoding scheme and transmission port of the SRS associated with the PUSCH.
当第一上行物理资源包括PUSCH且PUSCH的传输模式为基于非码本的传输模式时，DCI中的SRI字段用于指示从L个单端口的用于非码本传输的信道测量的SRS资源中选择其中一个或者多个SRS资源，发送PUSCH和与PUSCH关联的DM-RS的天线端口与SRI字段指示的SRS的天线端口的数量以及每个端口的预编码方案相同，L为正整数。SRI字段还可以同时指示与PUSCH关联的SRS的预编码方案，与PUSCH关联的SRS是指该SRS用于该PUSCH解调的信道估计，也就是说，第一DM-RS和与第一DM-RS关联的PUSCH的预编码方案与SRS的预编码方案相同。When the first uplink physical resource includes PUSCH and the transmission mode of PUSCH is a non-codebook-based transmission mode, the SRI field in the DCI is used to indicate the SRS resources measured from the channel of L single ports for non-codebook transmission. Select one or more SRS resources, and the antenna ports for transmitting PUSCH and DM-RS associated with PUSCH are the same as the number of SRS antenna ports indicated by the SRI field and the precoding scheme of each port, and L is a positive integer. The SRI field can also indicate the precoding scheme of the SRS associated with the PUSCH at the same time. The SRS associated with the PUSCH refers to the channel estimate used by the SRS for the PUSCH demodulation, that is, the first DM-RS and the first DM-RS. The precoding scheme of the RS-associated PUSCH is the same as the precoding scheme of the SRS.
当第一上行物理资源包括PUSCH且PUSCH的传输模式为基于码本的传输时，当DCI不包含用于指示PUSCH和与PUSCH关联的DM-RS的预编码方案的字段时，比如DCI为DCI格式0_0(Format 0_0)，即紧凑(Compact)的DCI格式，终端设备111可以自主确定PUSCH和与PUSCH关联的DM-RS的天线端口以及预编码矩阵。同时由于该DCI中不包含指示PUSCH和与PUSCH关联的DM-RS的传输层数，所以通过DCI format0_0调度的PUSCH均采用单流传输。紧凑的DCI格式和普通的DCI格式均用于上行数据调度，紧凑的DCI格式相比于普通的DCI格式携带的比特数和字段少。When the first uplink physical resource includes PUSCH and the transmission mode of PUSCH is codebook-based transmission, when the DCI does not contain a field indicating the precoding scheme of PUSCH and DM-RS associated with PUSCH, for example, the DCI is in DCI format. 0_0 (Format 0_0), that is, a compact (Compact) DCI format, the terminal device 111 can independently determine the antenna port and precoding matrix of the PUSCH and the DM-RS associated with the PUSCH. At the same time, because the DCI does not contain the transmission layer number indicating PUSCH and DM-RS associated with PUSCH, PUSCH scheduled through DCI format0_0 adopts single-stream transmission. Both the compact DCI format and the ordinary DCI format are used for uplink data scheduling. The compact DCI format carries fewer bits and fields than the ordinary DCI format.
S502中的DCI可以与S402中的第一DCI是相同的DCI，也可以是不同的DCI。本发明不作限制。The DCI in S502 may be the same DCI as the first DCI in S402, or may be a different DCI. The invention is not limited.
S503，终端设备111在第一时间段的第一上行物理资源上向网络设备101向发送第一数据信息和第一DM-RS。S503: The terminal device 111 sends the first data information and the first DM-RS to the network device 101 on the first uplink physical resource in the first time period.
进一步的，终端设备111在第二时间段发送SRS。具体的，终端设备111使用SRS占用的第二时间段中的频域单元和时域单元上发送SRS。Further, the terminal device 111 sends the SRS in the second time period. Specifically, the terminal device 111 uses the frequency domain unit and the time domain unit in the second time period occupied by the SRS to send the SRS.
S503中网络设备101的操作可以由处理器201通过收发器202执行。S503中终端设备111的操作可以由处理器304通过收发器301来执行。The operations of the network device 101 in S503 may be performed by the processor 201 through the transceiver 202. The operation of the terminal device 111 in S503 may be performed by the processor 304 through the transceiver 301.
步骤S503与S403类似，此处不再赘述。Step S503 is similar to S403 and will not be described again here.
本发明实施例中，通过指示SRS的预编码方案与关联的PUSCH和DM-RS的预编码方案相同，可以提升SRS接收性能，同时SRS用于接收与之关联的PUSCH的信道估计，也可以提升PUSCH的接收性能。In the embodiment of the present invention, by indicating that the precoding scheme of the SRS is the same as the precoding scheme of the associated PUSCH and DM-RS, the SRS reception performance can be improved. At the same time, the SRS is used to receive the channel estimate of the PUSCH associated with it, which can also be improved. PUSCH reception performance.
本发明示例还提供一种处理器可读存储介质,包括指令，当所述指令在处理器上运行时，实现上述方法。当处理器执行本发明实施例的方法时，其中的发送动作可以是处理器的输入输出端口输出承载待发送信息的基带信号，接收动作可以是处理器的输入输出端口接收承载待接收信息的基带信号。可以理解的，本发明实施例提供的处理器可读存储介质也可以为计算机可读存储介质。Examples of the present invention also provide a processor-readable storage medium, which includes instructions. When the instructions are run on the processor, the above method is implemented. When the processor executes the method of the embodiment of the present invention, the sending action may be that the input and output ports of the processor output a baseband signal carrying the information to be sent, and the receiving action may be that the input and output ports of the processor receive the baseband signal carrying the information to be received. Signal. It can be understood that the processor-readable storage medium provided by the embodiment of the present invention can also be a computer-readable storage medium.
本发明示例还提供一种装置(例如，集成电路、无线设备、电路模块等)用于实现上述方法。所述装置包括处理器和与所述处理器相连接的存储器，所述存储器用于存储指令，所述处理器用于读取并执行所述存储器中存储的所述指令，使得所述装置执行上述的方法。实现本文描述的装置可以是自立设备或者可以是较大设备的一部分。设备可以是(i)自立的IC；(ii)具有一个或多个IC的集合，其可包括用于存储数据和/或指令的存储器IC；(iii)RFIC，诸如RF接收机或RF发射机/接收机；(iv)ASIC，诸如移动站调制解调器；(v)可嵌入在其他设备内的模块；(vi)接收机、蜂窝电话、无线设备、手持机、或者移动单元；(vii)其他等等。Examples of the present invention also provide a device (eg, integrated circuit, wireless device, circuit module, etc.) for implementing the above method. The device includes a processor and a memory connected to the processor, the memory is used to store instructions, and the processor is used to read and execute the instructions stored in the memory, so that the device executes the above Methods. An apparatus that implements what is described herein may be a self-contained device or may be part of a larger device. The device may be (i) a self-contained IC; (ii) a collection of one or more ICs, which may include a memory IC for storing data and/or instructions; (iii) an RFIC, such as an RF receiver or an RF transmitter /Receiver; (iv) ASIC, such as a mobile station modem; (v) Module that may be embedded in other equipment; (vi) Receiver, cellular phone, wireless device, handset, or mobile unit; (vii) Others, etc. wait.
本发明实施例提供的方法和装置，可以应用于终端设备或接入网设备(或网络设备)(可以统称为无线设备)。该终端设备或接入网设备或无线设备可以包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、以及即时通信软件等应用。并且，在本发明实施例中，本发明实施例并不限定方法的执行主体的具体结构，只要能够通过运行记录有本发明实施例的方法的代码的程序，以根据本发明实施例的传输信号的方法进行通信即可，例如，本发明实施例的无线通信的方法的执行主体可以是终端设备或接入网设备，或者，是终端设备或接入网设备中能够调用程序并执行程序的功能模块。The methods and devices provided by the embodiments of the present invention can be applied to terminal equipment or access network equipment (or network equipment) (which can be collectively referred to as wireless equipment). The terminal device or access network device or wireless device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU) and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system or windows operating system, etc. This application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, in the embodiment of the present invention, the embodiment of the present invention does not limit the specific structure of the execution subject of the method, as long as the program recording the code of the method of the embodiment of the present invention can be run to transmit the signal according to the embodiment of the present invention. It suffices to communicate by a method. For example, the execution subject of the wireless communication method in the embodiment of the present invention can be a terminal device or an access network device, or a function in the terminal device or access network device that can call a program and execute the program. module.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered to be beyond the scope of the embodiments of the present invention.
此外，本发明实施例的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatiledisc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasableprogrammable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。Furthermore, various aspects or features of embodiments of the invention may be implemented as methods, apparatus, or articles of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, tapes, etc.), optical disks (eg, compact discs (CD), digital versatile discs (DVD), etc. ), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.
应理解，在本发明实施例的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。It should be understood that in various embodiments of the present invention, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the present invention. The implementation of the examples does not constitute any limitations.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者接入网设备等)执行本发明实施例各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-OnlyMemory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention is essentially, or the part that contributes to the existing technology, or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or an access network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code.
以上所述，仅为本发明实施例的具体实施方式，但本发明实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明实施例的保护范围之内。The above are only specific implementation modes of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not limited thereto. Any person familiar with the technical field can easily implement the method within the technical scope disclosed by the embodiments of the present invention. Any changes or substitutions that are thought of should be included within the protection scope of the embodiments of the present invention.
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| CN201811050428.1AActiveCN110891312B (en) | 2018-09-10 | 2018-09-10 | Information sending method, information receiving method and device |
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