技术领域technical field
本发明涉及通信技术领域，尤其涉及一种传输方法、终端及网络侧设备。The present invention relates to the technical field of communications, and in particular to a transmission method, terminal and network side equipment.
背景技术Background technique
目前，新空口(New Radio，NR)系统中物理上行共享信道(Physical UplinkShared Channel，PUSCH)存在两种资源调度方式，一种是基于时隙slot的调度，PUSCH可以基于4-14个符号(一个slot包括14个符号)调度，但在一个slot内只能进行一次调度。另一种是基于微时隙mini-slot的调度，PUSCH可以基于1-14个符号调度，且在一个slot内可以进行多次调度。在NR R15版本中，PUSCH重复传输时，每个slot内只能传输一个PUSCH，但在NR R16版本中，一个slot内可以进行PUSCH重复传输，如图1所示，一个slot内可以重复传输3个PUSCH，其中，一个PUSCH对应一个mini-slot，一个PUSCH占用4个符号。Currently, there are two resource scheduling methods for the Physical Uplink Shared Channel (PUSCH) in the New Radio (NR) system. One is slot-based scheduling, and the PUSCH can be based on 4-14 symbols (one The slot includes 14 symbols) scheduling, but only one scheduling can be performed in a slot. The other is scheduling based on mini-slot. PUSCH can be scheduled based on 1-14 symbols, and can be scheduled multiple times in one slot. In NR R15 version, when PUSCH is repeatedly transmitted, only one PUSCH can be transmitted in each slot, but in NR R16 version, PUSCH can be transmitted repeatedly in a slot, as shown in Figure 1, and can be transmitted repeatedly in a slot3 PUSCH, where one PUSCH corresponds to one mini-slot, and one PUSCH occupies 4 symbols.
然而，按照现有PUSCH传输中的映射规则，每个mini-slot内的第一个符号需要映射一个解调参考信号(DeModulation Reference Signal，DMRS)符号，当mini-slot的长度较短(如图2所示，mini-slot的长度为2)时，DMRS符号的密度就会比较大，从而导致DMRS的开销较大，系统的上行吞吐量较低。However, according to the mapping rules in the existing PUSCH transmission, the first symbol in each mini-slot needs to be mapped with a demodulation reference signal (DeModulation Reference Signal, DMRS) symbol, when the length of the mini-slot is short (as shown in As shown in 2, when the length of the mini-slot is 2), the density of DMRS symbols will be relatively large, resulting in large DMRS overhead and low system uplink throughput.
而为了降低DMRS开销导致的上行吞吐量降低，现有技术提出了DMRS共享的概念，即可以减少DMRS的数量，但具体在重复传输的PUSCH中如何实现DMRS的映射并没有具体的方案。In order to reduce the uplink throughput reduction caused by DMRS overhead, the prior art proposes the concept of DMRS sharing, which can reduce the number of DMRSs, but there is no specific solution on how to implement DMRS mapping in the repeatedly transmitted PUSCH.
发明内容Contents of the invention
本发明实施例提供一种传输方法、终端及网络侧设备，以在重复传输PUSCH实现DMRS的灵活映射。The embodiment of the present invention provides a transmission method, a terminal and a network side device, so as to realize flexible mapping of DMRS during repeated transmission of PUSCH.
为解决上述技术问题，本发明是这样实现的：In order to solve the problems of the technologies described above, the present invention is achieved in that:
第一方面，本发明实施例提供了一种传输方法，用于终端，所述传输方法包括：In the first aspect, an embodiment of the present invention provides a transmission method for a terminal, and the transmission method includes:
接收网络侧设备发送的映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；Receive the mapping control parameter sent by the network side device, the mapping control parameter is used to determine: the number M of DMRS among the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the M The position of the DMRS in the N PUSCHs; the N and M are both integers greater than 0, and the N is greater than or equal to M;
重复传输映射有所述M个DMRS的所述N个PUSCH。The N PUSCHs mapped with the M DMRSs are repeatedly transmitted.
第二方面，本发明实施例提供另一种传输方法，用于网络侧设备，所述传输方法包括：In the second aspect, the embodiment of the present invention provides another transmission method for network side equipment, and the transmission method includes:
发送映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；Send a mapping control parameter, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the number of M DMRSs in the N A position in a PUSCH; the N and M are both integers greater than 0, and the N is greater than or equal to M;
接收重复传输的映射有所述M个DMRS的所述N个PUSCH。The N PUSCHs mapped with the M DMRSs are received for repeated transmission.
第三方面，本发明实施例提供一种终端，包括：In a third aspect, an embodiment of the present invention provides a terminal, including:
接收模块，用于接收网络侧设备发送的映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；The receiving module is configured to receive a mapping control parameter sent by a network side device, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the positions of the M DMRSs in the N PUSCHs; both N and M are integers greater than 0, and the N is greater than or equal to M;
传输模块，用于重复传输映射有所述M个DMRS的所述N个PUSCH。A transmission module, configured to repeatedly transmit the N PUSCHs mapped with the M DMRSs.
第四方面，本发明实施例提供一种网络侧设备，包括：In a fourth aspect, an embodiment of the present invention provides a network side device, including:
发送模块，用于发送映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；A sending module, configured to send a mapping control parameter, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the M The position of the DMRS in the N PUSCHs; the N and M are both integers greater than 0, and the N is greater than or equal to M;
接收模块，用于接收重复传输的映射有所述M个DMRS的所述N个PUSCH。The receiving module is configured to receive the N PUSCHs mapped with the M DMRSs for repeated transmission.
第五方面，本发明实施例提供一种终端，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述第一方面所述的传输方法中的步骤。In the fifth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, and the computer program is implemented when executed by the processor. The steps in the transmission method described in the first aspect above.
第六方面，本发明实施例提供一种终端，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述第二方面所述的传输方法中的步骤。In a sixth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, and the computer program is implemented when executed by the processor. The steps in the transmission method described in the second aspect above.
第七方面，本发明实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述第一方面所述的方法中的步骤。In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method described in the above-mentioned first aspect is implemented. step.
第八方面，本发明实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述第二方面所述的方法中的步骤。In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method described in the above-mentioned second aspect is implemented. step.
本发明实施例中，通过接收网络侧设备发送的映射控制参数，从而可以根据映射控制参数，确定重复传输的N个PUSCH中，DMRS的数量M，或者确定所述M，以及M个DMRS在所述N个PUSCH中的位置，进而可以重复传输映射有所述M个DMRS的所述N个PUSCH。这样，在重复传输N个PUSCH时，可以根据映射控制参数来灵活确定DMRS的数量和/或位置。In the embodiment of the present invention, by receiving the mapping control parameters sent by the network side equipment, the number M of DMRSs in the N PUSCHs that are repeatedly transmitted can be determined according to the mapping control parameters, or the M, and the number of M DMRSs in the N PUSCHs can be determined. positions in the N PUSCHs, and then repeatedly transmit the N PUSCHs mapped with the M DMRSs. In this way, when repeatedly transmitting N PUSCHs, the number and/or positions of DMRSs can be flexibly determined according to the mapping control parameters.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.
图1是本发明实施例提供的在一个slot内重复传输PUSCH的示意图；FIG. 1 is a schematic diagram of repeated transmission of PUSCH in a slot provided by an embodiment of the present invention;
图2是本发明实施例提供的在一个slot内重复传输PUSCH时的DMRS密度示意图；FIG. 2 is a schematic diagram of the DMRS density when the PUSCH is repeatedly transmitted in a slot provided by an embodiment of the present invention;
图3是本发明实施例提供的一种传输方法的流程图；FIG. 3 is a flowchart of a transmission method provided by an embodiment of the present invention;
图4a是本发明实施例提供的同一个时隙内连续传输PUSCH的示意图；FIG. 4a is a schematic diagram of continuous transmission of PUSCH in the same time slot provided by an embodiment of the present invention;
图4b是本发明实施例提供的不同时隙内连续传输PUSCH的示意图；FIG. 4b is a schematic diagram of continuous transmission of PUSCH in different time slots provided by an embodiment of the present invention;
图5a是本发明实施例提供的传输相同时域长度的PUSCH示意图；FIG. 5a is a schematic diagram of a PUSCH transmitting the same time domain length provided by an embodiment of the present invention;
图5b是本发明实施例提供的传输不同时域长度的PUSCH示意图；FIG. 5b is a schematic diagram of a PUSCH transmitting different time domain lengths provided by an embodiment of the present invention;
图6是本发明实施例提供的传输4个PUSCH时的传输方式示意图；FIG. 6 is a schematic diagram of a transmission mode when four PUSCHs are transmitted according to an embodiment of the present invention;
图7是本发明实施例提供的另一种传输方法的流程图；FIG. 7 is a flowchart of another transmission method provided by an embodiment of the present invention;
图8是本发明实施例提供的一种终端的结构示意图；FIG. 8 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;
图9是本发明实施例提供的另一种终端的结构示意图；FIG. 9 is a schematic structural diagram of another terminal provided by an embodiment of the present invention;
图10是本发明实施例提供的一种网络侧设备的结构示意图；FIG. 10 is a schematic structural diagram of a network side device provided by an embodiment of the present invention;
图11是本发明实施例提供的一种终端的硬件结构示意图；FIG. 11 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present invention;
图12是本发明实施例提供的另一种网络侧设备结构示意图。Fig. 12 is a schematic structural diagram of another network side device provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
参见图3，图3是本发明实施例提供的一种传输方法的流程图，应用于终端，如图3所示，所述传输方法包括以下步骤：Referring to FIG. 3, FIG. 3 is a flowchart of a transmission method provided by an embodiment of the present invention, which is applied to a terminal. As shown in FIG. 3, the transmission method includes the following steps:
步骤301、接收网络侧设备发送的映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M。Step 301: Receive the mapping control parameter sent by the network side device, the mapping control parameter is used to determine: the number M of DMRS in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the positions of the M DMRSs in the N PUSCHs; both N and M are integers greater than 0, and the N is greater than or equal to M.
上述映射控制参数可以是由网络侧设备向终端发送的，所述映射控制参数中指示有终端与网络侧设备之间传输的N个PUSCH中包括的DMRS的数量M，或者还包括这M个DMRS在所述PUSCH中的位置信息。The above mapping control parameter may be sent by the network side device to the terminal, and the mapping control parameter indicates the number M of DMRS included in the N PUSCHs transmitted between the terminal and the network side device, or the M DMRS Location information in the PUSCH.
应当理解的是，上述的重复传输的N个PUSCH可以理解为：PUSCH重复传输指示对应的多次PUSCH传输中的部分或全部，重复传输的N个PUSCH可以位于1个slot，也可以位于多个slot。It should be understood that the above N PUSCHs for repeated transmission can be understood as: the repeated transmission of PUSCH indicates part or all of the corresponding multiple PUSCH transmissions, and the N PUSCHs for repeated transmission can be located in one slot or in multiple slots. slot.
对此举例说明如下。An example of this is given below.
假定网络侧通过高层信令或其他方式指示进行PUSCH的重复传输，重复传输的次数为10次，在本发明具体实施例中，上述的重复传输的N个PUSCH可以是该10次重复传输中的一部分，如2次、3次、5次等，但也可以是该10次重复传输中的全部，即10次重复传输。Assume that the network side instructs the repeated transmission of PUSCH through high-level signaling or other methods, and the number of repeated transmissions is 10 times. In a specific embodiment of the present invention, the above N PUSCHs for repeated transmission may be among the 10 repeated transmissions. A part, such as 2 times, 3 times, 5 times, etc., but also can be all of the 10 times of repeated transmissions, that is, 10 times of repeated transmissions.
而这N个PUSCH可以位于1个slot，也可以位于多个slot，可以连续，也可以不连续，根据不同的情况可以采用不同的映射控制参数来实现DMRS的映射控制，这将在后面进行详细说明。The N PUSCHs can be located in one slot or multiple slots, and can be continuous or discontinuous. According to different situations, different mapping control parameters can be used to realize the mapping control of DMRS, which will be detailed later illustrate.
本发明具体实施例中，通过所述映射控制参数，终端可以确定重复传输的N个PUSCH中DMRS的分布情况，并可以按照该分布情况，重复传输映射有所述M个DMRS的所述N个PUSCH；其中，所述N和M均为大于0的整数，且所述N大于或等于M，即重复传输的PUSCH的数量大于或等于其中映射有DMRS的PUSCH的数量，所述N个PUSCH可以是一个时隙slot中重复传输的全部PUSCH或部分PUSCH。In a specific embodiment of the present invention, through the mapping control parameters, the terminal can determine the distribution of DMRSs in the N PUSCHs that are repeatedly transmitted, and can repeatedly transmit the N DMRSs mapped with the M DMRSs according to the distribution. PUSCH; wherein, the N and M are both integers greater than 0, and the N is greater than or equal to M, that is, the number of PUSCHs repeatedly transmitted is greater than or equal to the number of PUSCHs mapped with DMRS, and the N PUSCHs can be It is all PUSCH or part of PUSCH repeatedly transmitted in a slot.
具体地，当根据所述映射控制参数可以确定重复传输的N个PUSCH中，DMRS的数量M时，终端可以根据预设的映射规则，确定所述M个DMRS在所述N个PUSCH中的位置。例如，若预设的映射规则为每3个PUSCH映射一个DMRS，则可以确定所述M个DMRS在所述N个PUSCH中的位置依次为第1个PUSCH、第4个PUSCH、第7个PUSCH等，所述预设的映射规则还可以是每预设个符号映射一个DMRS，或者每一组时域上连续的PUSCH中的第一个PUSCH映射一个DMRS等。Specifically, when the number M of DMRSs in the N PUSCHs that are repeatedly transmitted can be determined according to the mapping control parameters, the terminal can determine the positions of the M DMRSs in the N PUSCHs according to a preset mapping rule . For example, if the preset mapping rule is to map one DMRS for every three PUSCHs, it can be determined that the positions of the M DMRSs in the N PUSCHs are the first PUSCH, the fourth PUSCH, and the seventh PUSCH etc., the preset mapping rule may also be that every preset symbol is mapped to a DMRS, or the first PUSCH in each group of consecutive PUSCHs in the time domain is mapped to a DMRS, etc.
当根据所述映射控制参数可以确定重复传输的N个PUSCH中，DMRS的数量M，以及M个DMRS在所述N个PUSCH中的位置时，终端可以直接确定待重复传输的N个PUSCH中各DMRS的映射位置，例如，所述映射控制参数中直接指示了所述M个DMRS分别位于所述N个PUSCH中的第1个PUSCH、第3个PUSCH、第6个PUSCH、第8个PUSCH等。When the number M of DMRSs among the N PUSCHs to be repeatedly transmitted and the positions of the M DMRSs in the N PUSCHs can be determined according to the mapping control parameters, the terminal can directly determine each of the N PUSCHs to be repeatedly transmitted. The mapping position of the DMRS, for example, the mapping control parameter directly indicates that the M DMRSs are respectively located on the first PUSCH, the third PUSCH, the sixth PUSCH, the eighth PUSCH, etc. among the N PUSCHs .
这样，终端通过接收网络侧设备发送的映射控制参数，可以确定待重复传输的N个PUSCH中映射的DMRS数量，以及各DMRS在所述N个PUSCH中的位置，进而可以通过所述映射控制参数灵活调整所述N个PUSCH中DMRS的密度。In this way, by receiving the mapping control parameters sent by the network side equipment, the terminal can determine the number of DMRSs mapped in the N PUSCHs to be repeatedly transmitted, and the position of each DMRS in the N PUSCHs, and then can use the mapping control parameters The density of DMRSs in the N PUSCHs is flexibly adjusted.
上述的映射控制参数用于终端确定M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置，其可以通过多种方式实现，如下列举其中的三种方式如下。The above mapping control parameters are used by the terminal to determine M, or, the mapping control parameters are used to determine: the M, and the positions of the M DMRSs in the N PUSCHs, which can be implemented in various ways, as listed below Three of these methods are as follows.
方式一、所述映射控制参数为映射方案的标识信息，终端可以根据该标识信息确定对应的映射方案，并根据映射方案中记录的M个DMRS在所述N个PUSCH中的位置信息来映射DMRS。Method 1. The mapping control parameter is the identification information of the mapping scheme. The terminal can determine the corresponding mapping scheme according to the identification information, and map the DMRS according to the position information of the M DMRS recorded in the mapping scheme in the N PUSCHs .
方式二、所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS。Mode 2: The mapping control parameter includes N indicator bits, the N indicator bits correspond to the N PUSCHs one by one, and each indicator bit is used to indicate whether the DMRS is mapped to the corresponding PUSCH.
方式三、所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。Manner 3: The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCHs or symbols sharing one DMRS.
以下分别详细说明如下。The details are as follows respectively.
方式一中，预先设计多种映射方案，如：方案一、仅在连续的PUSCH中的首个PUSCH映射DMRS，并设置标识为00；方案二、每P(正整数)个PUSCH中映射一个DMRS，并设置标识为01；方案三、仅在连续的PUSCH中的首个和中间PUSCH映射DMRS，并设置标识为10；方案四、在连续的PUSCH中的每个PUSCH映射DMRS，并设置标识为11。In method 1, multiple mapping schemes are pre-designed, such as: scheme 1, only map DMRS on the first PUSCH in consecutive PUSCHs, and set the flag to 00; scheme 2, map a DMRS in every P (positive integer) PUSCH , and set the ID to 01; scheme three, map DMRS only on the first and middle PUSCHs in consecutive PUSCHs, and set the ID to 10; scheme four, map DMRS on each PUSCH in consecutive PUSCHs, and set the ID to 11.
由于网络侧和终端都预先保存了上述的映射方案及其对应的标识，此时终端接收到网络侧下发的映射方案的标识信息之后，即可根据对应关系确定映射方案，并依据映射方案来映射DMRS。Since both the network side and the terminal have stored the above-mentioned mapping scheme and its corresponding identification in advance, after receiving the identification information of the mapping scheme issued by the network side, the terminal can determine the mapping scheme according to the corresponding relationship, and use the mapping scheme to Map DMRS.
方式一中，所述映射控制参数中的映射方案的标识信息可以与PUSCH的长度和连续传输次数相关，即可以根据PUSCH的长度和连续传输次数从预设的多个映射方案中选择其中一种，并将选择的映射方案对应的标识作为映射控制参数发送至终端，终端根据接收的标识确定对应的映射方案。例如，如下表1所示，可以预先设定PUSCH的长度、连续传输次数与映射方案(标识信息)的对应关系：In the first way, the identification information of the mapping scheme in the mapping control parameter may be related to the length of the PUSCH and the number of consecutive transmissions, that is, one of the multiple preset mapping schemes may be selected according to the length of the PUSCH and the number of consecutive transmissions , and send the identifier corresponding to the selected mapping scheme as a mapping control parameter to the terminal, and the terminal determines the corresponding mapping scheme according to the received identifier. For example, as shown in Table 1 below, the corresponding relationship between the length of PUSCH, the number of consecutive transmissions and the mapping scheme (identification information) can be preset:
表1 PUSCH长度、连续传输次数与映射方案的对应关系Table 1 Correspondence between PUSCH length, number of consecutive transmissions and mapping schemes
这样，根据表2所示的对应关系，可以根据当前传输的PUSCH的长度和连续传输次数，从预设的映射方案中选择对应的映射方案。In this way, according to the correspondence shown in Table 2, a corresponding mapping scheme can be selected from preset mapping schemes according to the length of the currently transmitted PUSCH and the number of consecutive transmissions.
方式二中，所述映射控制参数可以包括N个指示位，且所述N个指示位中的每个指示位分别对应一个PUSCH，用于指示对应的PUSCH是否映射有DMRS，例如，所述映射控制参数包括4个指示位，分别为1、0、0、1，指示重复传输的4个PUSCH中的第1个PUSCH和第4个PUSCH映射有DMRS，第2个PUSCH、第3个PUSCH没有映射DMRS。In the second way, the mapping control parameter may include N indicator bits, and each indicator bit in the N indicator bits corresponds to a PUSCH, and is used to indicate whether the corresponding PUSCH is mapped with a DMRS. For example, the mapping The control parameters include 4 indicator bits, which are 1, 0, 0, and 1 respectively, indicating that the 1st PUSCH and the 4th PUSCH among the 4 PUSCHs that are repeatedly transmitted are mapped with DMRS, while the 2nd PUSCH and the 3rd PUSCH do not Map DMRS.
这样，根据所述N个指示位，可以灵活地确定所述N个PUSCH中，哪些PUSCH映射DMRS，哪些不映射DMRS，进而可以灵活地控制重复传输的PUSCH中DMRS的密度，如可以在传输信道相干时间较大或PUSCH的长度较短时，适当减小DMRS的密度，既不会影响信道估计的准确性，又可提高系统的上行吞吐量。In this way, according to the N indicator bits, it can be flexibly determined which PUSCHs in the N PUSCHs map DMRSs and which ones do not map DMRSs, so that the density of DMRSs in the repeatedly transmitted PUSCHs can be flexibly controlled. When the coherence time is long or the length of PUSCH is short, appropriately reducing the density of DMRS will neither affect the accuracy of channel estimation, but also improve the uplink throughput of the system.
这种方式下，所述的N个PUSCH即可以位于1个slot，也可以位于多个slot，可以连续，也可以不连续，只需要保证共享DMRS的PUSCH位于同一时隙，且在时域上连续即可。In this way, the N PUSCHs can be located in one slot or in multiple slots, and can be continuous or discontinuous. It is only necessary to ensure that the PUSCHs sharing the DMRS are located in the same time slot and in the time domain Continuous.
本发明具体实施例中还可以预先设置所述映射控制参数的位数，当N大于预先设置的位数时，终端可以扩展映射控制参数的位数，以满足指示N次传输的PUSCH是否包含DMRS，而当N小于预先设置的位数时，可以截断，利用截取的Nbit来指示N次传输的PUSCH是否包含DMRS。In the specific embodiment of the present invention, the number of digits of the mapping control parameter can also be preset. When N is greater than the preset number of digits, the terminal can expand the number of digits of the mapping control parameter to satisfy whether the PUSCH indicating N transmissions contains DMRS , and when N is less than the preset number of bits, it can be truncated, and the truncated N bits are used to indicate whether the PUSCH transmitted N times includes DMRS.
换句话说，所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换(如扩展或截取)的方式，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；In other words, the mapping control parameter includes A indication bits, and the A is a positive integer not equal to N, and the terminal obtains N corresponding to the N PUSCHs one-to-one by means of transformation (such as extension or truncation). indication bits, each of the N indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
对此，举例说明如下。In this regard, an example is given below.
假定基站始终通过3Bit映射控制参数进行指示，假设映射控制参数取值为100，当一个slot内连续传输的次数为N大于3时，如N＝5时，则终端会将3bit扩展至5比特，即10010；当一个slot连续传输的次数小于3时，如N为2时，将3bit截断至2比特，如取前两位10。Assume that the base station always indicates through the 3Bit mapping control parameter, assuming that the value of the mapping control parameter is 100, when the number of consecutive transmissions in a slot is N greater than 3, such as N=5, the terminal will extend 3 bits to 5 bits, That is, 10010; when the number of consecutive transmissions of a slot is less than 3, such as when N is 2, truncate 3 bits to 2 bits, such as taking the first two bits as 10.
以上仅仅是举例说明，本发明具体实施例并不限制具体的扩展方式和/或截断方式。The foregoing is merely an example, and specific embodiments of the present invention do not limit specific extension and/or truncation methods.
这种方式能够进一步降低DMRS映射指示的开销，提高系统吞吐量。This way can further reduce the overhead of DMRS mapping indication and improve the system throughput.
上述的方式一和方式二中，当N较大时，则映射控制参数的开销较大，因此在方式三中，所述映射控制参数也可以是包括密度参数，所述密度参数用于指示共享一个DMRS的PUSCH或符号的数量L。In the above method 1 and method 2, when N is large, the overhead of the mapping control parameter is relatively large, so in the method 3, the mapping control parameter may also include a density parameter, and the density parameter is used to indicate the sharing The number L of PUSCH or symbols of a DMRS.
例如，若所述密度参数指示共享一个DMRS的PUSCH的数量L为2，则可以确定重复传输的N个PUSCH中每2个PUSCH映射有一个DMRS，即所述N个PUSCH中的第1个PUSCH、第3个PUSCH、第5个PUSCH等映射有DMRS，而所述N个PUSCH中的第2个PUSCH、第4个PUSCH、第6个PUSCH等没有映射DMRS。For example, if the density parameter indicates that the number L of PUSCHs sharing one DMRS is 2, it can be determined that every 2 PUSCHs in the N PUSCHs that are repeatedly transmitted are mapped with a DMRS, that is, the first PUSCH in the N PUSCHs , the third PUSCH, the fifth PUSCH, etc. are mapped with a DMRS, while the second PUSCH, the fourth PUSCH, the sixth PUSCH, etc. of the N PUSCHs are not mapped with a DMRS.
又如，若所述密度参数指示共享一个DMRS的符号的数量L为3，则可以确定重复传输的N个PUSCH中每3个符号映射有一个DMRS，即所述N个PUSCH中的第1个符号、第4个符号、第7个符号等映射有1个DMRS。For another example, if the density parameter indicates that the number L of symbols sharing one DMRS is 3, it can be determined that every 3 symbols in the N PUSCHs that are repeatedly transmitted are mapped to a DMRS, that is, the first of the N PUSCHs There is 1 DMRS mapped to the symbol, the 4th symbol, the 7th symbol, etc.
这样，通过设置所述用于指示共享一个DMRS的PUSCH或符号的数量L的密度参数，可以有效控制重复传输的所述N个PUSCH中DMRS的密度，进而减小指示开销，保证一个时隙slot中可以重复传输更多的PUSCH。In this way, by setting the density parameter used to indicate the number L of PUSCHs or symbols that share one DMRS, the density of DMRSs in the N PUSCHs that are repeatedly transmitted can be effectively controlled, thereby reducing the indication overhead and ensuring a time slot slot More PUSCHs can be transmitted repeatedly.
需说明的是，上述方式一和方式三可以结合，例如，所述映射控制参数包括映射方案的标识信息和密度参数，当所述映射控制参数指示对应的映射方案的标识信息为01或11时，可以结合所述密度参数，确定所述N个PUSCH中DMRS的映射位置。It should be noted that the above method 1 and method 3 can be combined, for example, the mapping control parameters include the identification information and density parameters of the mapping scheme, when the mapping control parameters indicate that the identification information of the corresponding mapping scheme is 01 or 11 , the mapping position of the DMRS in the N PUSCHs may be determined in combination with the density parameter.
具体地，可以根据PUSCH的长度的不同，设置不同的密度参数，所述密度参数的取值可以由无线资源控制(Radio Resource Control，RRC)配置或者下行控制信息(DownlinkControl Information，DCI)指示，例如，如下表2所示，可以在DCI中使用2bit(DMRDindicator)作为DMRS标识，用于指示PUSCH重复传输时的映射方式：Specifically, different density parameters may be set according to different lengths of the PUSCH, and the value of the density parameter may be configured by radio resource control (Radio Resource Control, RRC) or indicated by downlink control information (Downlink Control Information, DCI), for example , as shown in Table 2 below, 2bit (DMRDindicator) can be used as the DMRS identifier in the DCI to indicate the mapping method when the PUSCH is repeatedly transmitted:
表2不同标识指示不同密度的DMRS映射方案Table 2 Different identifiers indicate DMRS mapping schemes with different densities
如表2所示，可以分别采用00、01、10和11四个标识分别表示不同PUSCH长度下对应的DMRS映射方案，如当PUSCH的长度为2时，若所述映射控制参数中的DMRS指示标识为“01”，则可以确定对应的密度参数取值为2，即可确定重复传输的N个PUSCH中，每两个PUSCH映射一个DMRS，此外，“1”表示每个PUSCH均映射有DMRS，“∞”表示一个时隙slot内连续传输的多个PUSCH只映射一个DMRS。“--”表示保留，可以进一步研究其具体取值或作用。As shown in Table 2, four identifiers of 00, 01, 10 and 11 can be used to respectively represent the corresponding DMRS mapping schemes under different PUSCH lengths. For example, when the length of the PUSCH is 2, if the DMRS indication in the mapping control parameter If the flag is "01", it can be determined that the corresponding density parameter is 2, which means that among the N PUSCHs that are repeatedly transmitted, every two PUSCHs are mapped to a DMRS. In addition, "1" means that each PUSCH is mapped to a DMRS , "∞" indicates that multiple PUSCHs transmitted continuously in one slot only map to one DMRS. "--" means reserved, and its specific value or function can be further studied.
可选的，所述映射控制参数包括密度参数的情况下，该密度参数无法确定M个DMRS的映射位置。本发明具体实施例中，DMRS的映射位置可以协议预先约定，例如DMRS在这L个PUSCH或符号中的第一个PUSCH或符号，也可以是通过在所述映射控制参数携带一位置指示参数，用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameters include a density parameter, the density parameter cannot determine the mapping positions of the M DMRSs. In a specific embodiment of the present invention, the mapping position of the DMRS can be pre-agreed by agreement, for example, the first PUSCH or symbol of the DMRS in the L PUSCHs or symbols, or by carrying a position indication parameter in the mapping control parameter, It is used to indicate: the position of the DMRS in the L PUSCHs or symbols.
上述方式中，所述映射控制参数中还包括位置指示参数，所述位置指示参数可以指示共享一个DMRS的L个PUSCH或符号中，DMRS在这L个PUSCH或符号中的具体位置。例如，所述密度参数指示4个PUSCH共享一个DMRS，所述位置指示参数则可以指示DMRS位于这4个PUSCH中的第几个PUSCH，如位置指示参数为2，则表示DMRS位于这4个PUSCH中的第2个PUSCH。这样，根据所述映射控制参数，可以确定每个DMRS在所述N个PUSCH中分别所处的位置，进而可确定终端所重复传输的N个PUSCH中哪些PUSCH映射有DMRS。In the above manner, the mapping control parameters further include a position indication parameter, and the position indication parameter may indicate the specific position of the DMRS in the L PUSCHs or symbols sharing one DMRS. For example, the density parameter indicates that 4 PUSCHs share one DMRS, and the position indication parameter can indicate which PUSCH the DMRS is located in among the 4 PUSCHs. If the position indication parameter is 2, it means that the DMRS is located in the 4 PUSCHs The 2nd PUSCH in. In this way, according to the mapping control parameters, the respective positions of each DMRS in the N PUSCHs can be determined, and then it can be determined which PUSCHs among the N PUSCHs repeatedly transmitted by the terminal are mapped with DMRSs.
相对于协议预定义的方式，上述方式可以更加灵活的确定DMRS的映射位置。Compared with the method predefined in the protocol, the above method can more flexibly determine the mapping position of the DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
当所述映射控制参数包括密度参数时，所述密度参数的取值可以与PUSCH的长度或者信道状态相关，即所述密度参数可以取不同的值，具体可以根据传输中PUSCH的长度或者信道状态来确定。When the mapping control parameter includes a density parameter, the value of the density parameter may be related to the length of the PUSCH or the channel state, that is, the density parameter may take different values, specifically according to the length of the PUSCH in transmission or the channel state to make sure.
具体地，可以在所述PUSCH的长度较长或者信道状态较差时，所述密度参数的取值较小，以保证正常的信道估计。在所述PUSCH的长度较短或信道状态较好时，所述密度参数的取值可以较大，在保证正常信道估计的同时，减少DMRS的开销。Specifically, when the length of the PUSCH is longer or the channel state is poor, the value of the density parameter may be smaller, so as to ensure normal channel estimation. When the length of the PUSCH is short or the channel state is good, the value of the density parameter can be large, so as to reduce the overhead of DMRS while ensuring normal channel estimation.
例如，PUSCH的长度为4时，所述密度参数的取值为2，每2个PUSCH映射有一个DMRS，PUSCH的长度为2时，所述密度参数的取值可以为3，每3个PUSCH映射有一个DMRS，这样根据PUSCH的长度来确定相应的密度参数取值，可以控制DMRS的密度在适当范围；或者在信道状态较差时，为避免影响信道估计的准确性，所述密度参数的取值可以为1，即每个PUSCH映射有一个DMRS。而在信道状态较好时，可以所述密度参数的取值可以较大，如取为3，既不会影响信道估计的准确性，又可减小DMRS的密度。For example, when the length of PUSCH is 4, the value of the density parameter is 2, every 2 PUSCHs are mapped with a DMRS, when the length of PUSCH is 2, the value of the density parameter can be 3, every 3 PUSCHs A DMRS is mapped, so that the corresponding density parameter value is determined according to the length of the PUSCH, and the density of the DMRS can be controlled in an appropriate range; or when the channel state is poor, in order to avoid affecting the accuracy of channel estimation, the density parameter The value can be 1, that is, one DMRS is mapped to each PUSCH. When the channel state is good, the value of the density parameter can be larger, such as 3, which will not affect the accuracy of channel estimation and can reduce the density of DMRS.
本发明具体实施例中，应当理解的是，上述的重复传输的N个PUSCH可以理解为：一次PUSCH重复传输指示对应的多次PUSCH传输中的部分或全部，重复传输的N个PUSCH可以位于1个slot，也可以位于多个slot。In the specific embodiment of the present invention, it should be understood that the above N PUSCHs for repeated transmission can be understood as: one PUSCH repeated transmission indicates part or all of the corresponding multiple PUSCH transmissions, and the N PUSCHs for repeated transmission can be located at 1 slot, or multiple slots.
在使用密度参数进行指示的情况下，所述的N个PUSCH可以是重复传输的O个PUSCH中的一部分或全部，所述O为大于或等于N的整数，而且所述N个PUSCH应该位于同一个时隙和同一个频带，且在时域上连续，以确保信道估计的准确度。In the case of using a density parameter to indicate, the N PUSCHs may be a part or all of the O PUSCHs repeatedly transmitted, the O is an integer greater than or equal to N, and the N PUSCHs should be located at the same One time slot and the same frequency band, and continuous in the time domain, to ensure the accuracy of channel estimation.
如果PUSCH在一个slot内支持跳频，但是两跳的起始PRB位置相同，则认为跳频点前后的两个PUSCH不在一个频带或时域上不连续，无论跳频前后的频域资源是否一样，不同跳之间的PUSCH不能共享一个DMRS。If PUSCH supports frequency hopping in a slot, but the starting PRB positions of the two hops are the same, it is considered that the two PUSCHs before and after the frequency hopping point are not in the same frequency band or discontinuous in the time domain, regardless of whether the frequency domain resources before and after frequency hopping are the same , PUSCHs between different hops cannot share one DMRS.
该实施方式中，所述N个PUSCH可以是属于重复传输的O个PUSCH中的一部分，其中，所述N个PUSCH位于同一个时隙和同一个频带，即所述N个PUSCH在同一个时隙传输，也没有跳频，以保证所述N个PUSCH中的某几个PUSCH可以共享一个DMRS，且所述N个PUSCH在时域上连续，所述O为大于或等于N的整数，即所述重复传输的O个PUSCH可以是不连续的，但所述N个PUSCH是所述O个PUSCH中连续传输的部分PUSCH。In this embodiment, the N PUSCHs may be part of the O PUSCHs that are repeatedly transmitted, wherein the N PUSCHs are located in the same time slot and the same frequency band, that is, the N PUSCHs are transmitted at the same time Slot transmission, and no frequency hopping, to ensure that some of the N PUSCHs can share a DMRS, and the N PUSCHs are continuous in the time domain, and the O is an integer greater than or equal to N, that is The O PUSCHs that are repeatedly transmitted may be discontinuous, but the N PUSCHs are part of the PUSCHs that are continuously transmitted among the O PUSCHs.
也就是说，对于重复传输的O个PUSCH可以分为多个组，每个组中包括至少一个PUSCH，且每个组中的PUSCH位于同一个时隙和同一个频带，且在时域上连续。本发明具体实施例中，可以针对每一组各自独立按照上述的方式利用密度控制参数进行DMRS映射控制。当组中的PUSCH为1个时，则需要映射一个DMRS，而当组中的PUSCH的数量为两个及以上时，则可以按照上述的方式利用密度控制参数进行DMRS映射控制。That is to say, the O PUSCHs for repeated transmission can be divided into multiple groups, each group includes at least one PUSCH, and the PUSCHs in each group are located in the same time slot and the same frequency band, and are continuous in the time domain . In a specific embodiment of the present invention, for each group, the DMRS mapping control can be performed independently by using the density control parameters in the above manner. When there is one PUSCH in the group, one DMRS needs to be mapped, and when the number of PUSCHs in the group is two or more, the DMRS mapping control can be performed by using the density control parameter in the above manner.
对此举例说明如下。An example of this is given below.
例如，如图4a所示，一个时隙内传输有4个PUSCH，其中，第1个PUSCH和第2个PUSCH是不连续传输的，第2个PUSCH至第4个PUSCH在时域上是连续传输的，所述N个PUSCH可以是这4个PUSCH中连续传输的3个PUSCH。For example, as shown in Figure 4a, there are 4 PUSCHs transmitted in one time slot, in which the first PUSCH and the second PUSCH are transmitted discontinuously, and the second PUSCH to the fourth PUSCH are continuous in the time domain For transmission, the N PUSCHs may be 3 PUSCHs that are continuously transmitted among the 4 PUSCHs.
又如，如图4b所示，第一个时隙内传输有2个PUSCH，且这2个PUSCH是不连续传输的，第二个时隙内也传输有2个PUSCH，且这2个PUSCH与第一个时隙内的第2个PUSCH是连续传输的，但由于第一个时隙内的第2个PUSCH与第二个时隙内的PUSCH位于不同时隙，因此，则所述N个PUSCH为第二个时隙内连续传输的2个PUSCH，所述第一个时隙内传输的PUSCH不能与第二个时隙内传输的PUSCH共享DMRS。As another example, as shown in Figure 4b, there are 2 PUSCHs transmitted in the first time slot, and these 2 PUSCHs are discontinuously transmitted, and 2 PUSCHs are also transmitted in the second time slot, and the 2 PUSCHs The second PUSCH in the first slot is continuously transmitted, but since the second PUSCH in the first slot is located in a different slot from the PUSCH in the second slot, the N The PUSCHs are two PUSCHs transmitted continuously in the second time slot, and the PUSCH transmitted in the first time slot cannot share the DMRS with the PUSCH transmitted in the second time slot.
这样，通过接收网络侧设备发送的所述映射控制参数，来确定DMRS在一个时隙中连续传输的多个PUSCH中的位置，从而可以灵活控制一个时隙中连续传输的多个PUSCH中的DMRS的密度，进而提高系统的上行吞吐量。In this way, by receiving the mapping control parameters sent by the network side equipment, the position of the DMRS in the multiple PUSCHs continuously transmitted in one time slot is determined, so that the DMRS in the multiple PUSCHs continuously transmitted in one time slot can be flexibly controlled density, thereby improving the uplink throughput of the system.
本发明具体实施例中，通过上述的各种方式均可以实现如下各种映射方案，举例如下。In specific embodiments of the present invention, the following various mapping schemes can be implemented through the above-mentioned various methods, examples are as follows.
映射方案1，所述M等于1，且所述DMRS映射在第一个PUSCH中，这种方式能够最大化减小DMRS的开销，提高吞吐量。In the mapping scheme 1, the M is equal to 1, and the DMRS is mapped to the first PUSCH, which can minimize the overhead of the DMRS and improve the throughput.
映射方案2，所述M等于N，且每一个PUSCH中映射有一个DMRS，这种方式能够最大化信道估计的精度。In mapping scheme 2, the M is equal to N, and each PUSCH is mapped with a DMRS, which can maximize the accuracy of channel estimation.
映射方案3，所述M小于N，且时域上，相邻的DMRS之间间隔的PUSCH数量相同，这种方式能够保证不同PUSCH的信道估计的一致性。In mapping scheme 3, the M is smaller than N, and in the time domain, the number of PUSCHs spaced between adjacent DMRSs is the same. This way can ensure the consistency of channel estimation of different PUSCHs.
在所述M的取值不同时，可以确定DMRS在所述N个PUSCH中的映射位置也相应不同，具体地，可以是当所述M等于1时，即所述N个PUSCH中只有1个PUSCH映射有DMRS，此时DMRS可以映射在第一个PUSCH中，剩余N-1个PUSCH可以与第一个PUSCH共享该DMRS，即都使用该DMRS来作为解调参考信号；当所述M等于N时，每一个PUSCH中分别映射有一个DMRS，这样每个PUSCH均有对应的DMRS；当所述M小于N时，时域上，相邻的DMRS之间间隔的PUSCH数量相同，即所述N个PUSCH中每一定数量的PUSCH需要共享一个DMRS，如每3个PUSCH共享一个DMRS，也即时域上相邻的DMRS之间间隔的PUSCH数量为2。When the value of M is different, it may be determined that the mapping position of the DMRS in the N PUSCHs is also correspondingly different, specifically, when the M is equal to 1, that is, there is only one of the N PUSCHs The PUSCH is mapped with a DMRS. At this time, the DMRS can be mapped in the first PUSCH, and the remaining N-1 PUSCHs can share the DMRS with the first PUSCH, that is, all use the DMRS as a demodulation reference signal; when the M is equal to When N, each PUSCH is mapped with a DMRS, so that each PUSCH has a corresponding DMRS; when the M is less than N, in the time domain, the number of PUSCHs spaced between adjacent DMRSs is the same, that is, the Every certain number of PUSCHs among the N PUSCHs needs to share one DMRS, for example, every three PUSCHs share one DMRS, that is, the number of PUSCHs separated between adjacent DMRSs in the domain is 2.
这样，随所述M的取值的不同，可以确定所述N个PUSCH中，映射的DMRS的数量和位置均不同。具体地，可以根据实际传输情况，确定所述M的取值，以控制DMRS的密度和保证信道估计的准确性。In this way, depending on the value of M, it can be determined that the number and position of mapped DMRSs in the N PUSCHs are different. Specifically, the value of M may be determined according to actual transmission conditions, so as to control the density of DMRS and ensure the accuracy of channel estimation.
可选的，所述N个PUSCH的时域长度相同；Optionally, the time domain lengths of the N PUSCHs are the same;
或or
第一PUSCH的时域长度大于第二PUSCH的时域长度，且所述第一PUSCH除DMRS所在符号之外的时域长度与所述第二PUSCH除DMRS所在符号之外的时域长度相同，所述第一PUSCH为映射有DMRS的PUSCH，所述第二PUSCH为未映射DMRS的PUSCH。The time domain length of the first PUSCH is greater than the time domain length of the second PUSCH, and the time domain length of the first PUSCH except the symbol where the DMRS is located is the same as the time domain length of the second PUSCH except the symbol where the DMRS is located, The first PUSCH is a PUSCH mapped with a DMRS, and the second PUSCH is a PUSCH not mapped with a DMRS.
该实施方式中，所述N个PUSCH的时域长度相同，即所述N个PUSCH中每个PUSCH的时域长度均相同，例如，如图5a所示，每个PUSCH的时域长度均为3。这样，当多个PUSCH共用一个DMRS时，有些mini-slot不包含DMRS，而当某个mini-slot不包含DMRS时，上行数据传输码率相对于有DMRS的mini-slot的数据传输码率更低，数据传输的可靠性更高。In this embodiment, the time domain lengths of the N PUSCHs are the same, that is, the time domain lengths of each PUSCH in the N PUSCHs are the same, for example, as shown in Figure 5a, the time domain lengths of each PUSCH are 3. In this way, when multiple PUSCHs share one DMRS, some mini-slots do not contain DMRS, and when a certain mini-slot does not contain DMRS, the uplink data transmission code rate is higher than that of the mini-slot with DMRS. Low, the reliability of data transmission is higher.
或者or
所述N个PUSCH中各PUSCH的长度也可以不相同，如映射有DMRS的PUSCH的时域长度大于未映射DMRS的PUSCH的时域长度，且映射有DMRS的PUSCH除DMRS所在符号之外的时域长度与未映射DMRS的PUSCH除DMRS所在符号之外的时域长度相同，例如，如图5b所示，第一PUSCH映射有DMRS，其时域长度为3，第二PUSCH未映射DMRS，其时域长度为2，可见，所述第一PUSCH除DMRS所在符号之外的时域长度与所述第二PUSCH除DMRS所在符号之外的时域长度相同，均为2。这样，当不同mini-slot共用一个DMRS时，不包含DMRS的mini-slot的整体长度比包含DMRS的mini-slot的整体长度短，这样，每一个slot内将可以重复更多的PUSCH传输次数，或者重复相同次数的PUSCH传输所需的资源更少，剩余的资源可以用于调度其他数据或其他UE，以提高系统的上行吞吐量。The lengths of the PUSCHs among the N PUSCHs may also be different, for example, the time domain length of the PUSCH mapped with the DMRS is greater than the time domain length of the PUSCH not mapped with the DMRS, and the time domain length of the PUSCH mapped with the DMRS except the symbol where the DMRS is located The domain length is the same as the time domain length of the PUSCH without DMRS mapping except for the symbol where the DMRS is located. For example, as shown in Figure 5b, the first PUSCH is mapped with DMRS, and its time domain length is 3, and the second PUSCH is not mapped with DMRS. The time domain length is 2. It can be seen that the time domain length of the first PUSCH except the symbol where the DMRS is located is the same as the length of the time domain of the second PUSCH except the symbol where the DMRS is located, both of which are 2. In this way, when different mini-slots share a DMRS, the overall length of the mini-slot without DMRS is shorter than the overall length of the mini-slot with DMRS, so that more PUSCH transmissions can be repeated in each slot, Alternatively, fewer resources are required for repeated PUSCH transmissions for the same number of times, and the remaining resources can be used to schedule other data or other UEs, so as to improve the uplink throughput of the system.
本发明具体实施例中，上述的映射控制参数可以通过不同的方式发送到终端。In a specific embodiment of the present invention, the above-mentioned mapping control parameters may be sent to the terminal in different ways.
在NR系统中，PUSCH从授权方式方面可以分为基于授权的PUSCH(Granted-basedPUSCH)和基于配置授权的PUSCH(configured granted PUSCH)，该实施方式中，当所述PUSCH为基于授权的PUSCH时，所述映射控制参数可以通过上行授权UL grant传输，或通过RRC参数配置，当所述PUSCH为基于配置授权的PUSCH时，所述映射控制参数可以通过配置所述PUSCH的RRC信令传输，或者携带在用于激活所述PUSCH的DCI信令中，这样，当终端需要与网络侧设备传输PUSCH时，网络侧设备可以先通过DCI信令激活所述PUSCH传输，并将所述映射控制参数携带在所述DCI信令中。In the NR system, PUSCH can be divided into grant-based PUSCH (Granted-basedPUSCH) and configuration-based PUSCH (configured granted PUSCH) in terms of authorization methods. In this embodiment, when the PUSCH is an authorization-based PUSCH, The mapping control parameters can be transmitted through the uplink authorization UL grant, or configured through RRC parameters. When the PUSCH is a PUSCH based on configuration grants, the mapping control parameters can be transmitted through RRC signaling configuring the PUSCH, or carry In the DCI signaling for activating the PUSCH, in this way, when the terminal needs to transmit the PUSCH with the network side equipment, the network side equipment can first activate the PUSCH transmission through the DCI signaling, and carry the mapping control parameters in In the DCI signaling.
上述方式下，映射控制参数通过已有的信令传输，降低了流程的复杂度。In the above manner, the mapping control parameters are transmitted through existing signaling, which reduces the complexity of the process.
也就是说，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；That is to say, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的无线资源控制(Radio Resource Control，RRC)信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the radio resource control (Radio Resource Control, RRC) signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的下行控制信息(Downlink Control Information，DCI)信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by downlink control information (Downlink Control Information, DCI) signaling for activating the PUSCH.
步骤302、重复传输映射有所述M个DMRS的所述N个PUSCH。Step 302, repeatedly transmitting the N PUSCHs mapped with the M DMRSs.
在确定所述N个PUSCH中的DMRS数量及位置后，便可以按照所述M个DMRS在所述N个PUSCH中的位置，在对应的PUSCH中映射DMRS，并向网络侧设备重复传输所述N个PUSCH。本发明具体实施例中，映射在某一PUSCH内的DMRS，可以是单符号(Single-Symbol)DMRS，或双符号(Double-Symbol)DMRS。After determining the number and positions of DMRSs in the N PUSCHs, map the DMRSs in the corresponding PUSCHs according to the positions of the M DMRSs in the N PUSCHs, and repeatedly transmit the DMRSs to the network side equipment. N PUSCHs. In a specific embodiment of the present invention, the DMRS mapped in a certain PUSCH may be a single-symbol (Single-Symbol) DMRS or a double-symbol (Double-Symbol) DMRS.
可选的，在步骤302之前，所述传输方法还包括：Optionally, before step 302, the transmission method further includes:
根据传输参数、映射控制参数以及映射方案三者之间的对应关系，获取与所述N个PUSCH的当前传输参数和接收到的映射控制参数对应的映射方案；Acquire a mapping scheme corresponding to the current transmission parameters of the N PUSCHs and the received mapping control parameters according to the correspondence between the transmission parameters, the mapping control parameters, and the mapping scheme;
根据所述映射方案确定所述M，以及M个DMRS在所述N个PUSCH中的位置。Determine the M and the positions of the M DMRSs in the N PUSCHs according to the mapping scheme.
该实施方式中，在接收到所述映射控制参数时，终端可以根据传输参数、映射控制参数以及映射方案三者之间的对应关系，确定与所述N个PUSCH的当前传输参数和接收到的映射控制参数对应的映射方案，其中，所述传输参数可以包括指示为连续传输的参数和指示为非连续传输的参数，所述映射控制参数包括多个，每一个映射控制参数可以分别指示连续传输和非连续传输时所采用的映射方案，如映射控制参数“0”表示连续传输时采用映射方案1，非连续传输时采用映射方案2，所述映射方案包括连续传输时的映射方案和非连续传输时的映射方案。In this embodiment, when receiving the mapping control parameters, the terminal can determine the current transmission parameters related to the N PUSCHs and the received A mapping scheme corresponding to a mapping control parameter, wherein the transmission parameter may include a parameter indicating continuous transmission and a parameter indicating discontinuous transmission, the mapping control parameter includes a plurality of each mapping control parameter may respectively indicate continuous transmission and the mapping scheme used in discontinuous transmission, such as the mapping control parameter "0" indicates that mapping scheme 1 is used in continuous transmission, and mapping scheme 2 is used in discontinuous transmission. The mapping scheme includes the mapping scheme and discontinuous transmission in continuous transmission. Mapping scheme at transfer time.
终端可以预先建立传输参数、映射控制参数以及映射方案三者之间的对应关系，所述N个PUSCH的当前传输参数可以根据所述N个PUSCH在一个时隙中的传输状态确定，这样，在接收到网络侧设备发送的映射控制参数时，便可以根据所述对应关系，确定与所述N个PUSCH的当前传输参数和接收到的映射控制参数对应的映射方案，进而可以根据所述映射方案确定所述M，以及M个DMRS在所述N个PUSCH中的位置。The terminal can pre-establish the correspondence between the transmission parameters, mapping control parameters, and mapping schemes, and the current transmission parameters of the N PUSCHs can be determined according to the transmission status of the N PUSCHs in a time slot. In this way, in When the mapping control parameter sent by the network side device is received, the mapping scheme corresponding to the current transmission parameters of the N PUSCHs and the received mapping control parameter can be determined according to the corresponding relationship, and then the mapping scheme can be determined according to the mapping scheme Determine the M, and the positions of the M DMRSs in the N PUSCHs.
例如，重复传输的PUSCH的数量为4时，如图6所示，对应的可能的分布模式有5种，即：For example, when the number of repeatedly transmitted PUSCHs is 4, as shown in FIG. 6, there are 5 corresponding possible distribution modes, namely:
全部连续；all consecutive;
两两连续；two consecutive;
后面三个连续；The next three consecutive;
前面三个连续；The first three consecutive;
都不连续。None consecutive.
而每种分布模式中，又可能包含多个不同的DMRS映射方案，以全部连续为例，映射方案可以是映射4个DMRS、每两个PUSCH映射一个DMRS、仅在起始PUSCH映射一个DMRS、在第二个PUSCH映射一个DMRS、……。同样其他的分布模式也都包括多种映射方案。And each distribution mode may contain multiple different DMRS mapping schemes. Taking all continuous as an example, the mapping scheme can be to map 4 DMRSs, map one DMRS for every two PUSCHs, map one DMRS only on the initial PUSCH, A DMRS, ... is mapped on the second PUSCH. Similarly, other distribution modes also include multiple mapping schemes.
而所有的映射方案组合起来可能多达几十个，为了节约指示开销，本发明具体实施例中可以联合PUSCH的传输参数对映射方案进行联合编码，降低开销。However, there may be dozens of mapping schemes combined. In order to save indication overhead, in specific embodiments of the present invention, the mapping schemes may be jointly coded in conjunction with PUSCH transmission parameters to reduce overhead.
对于终端来说，PUSCH的传输参数是可以确定的，因此，终端可以根据网络侧设备发送的标识，确定当前传输方式下对应的映射方案。例如，预先建立的传输参数、映射控制参数以及映射方案三者之间的对应关系如下表3所示：For the terminal, the transmission parameters of the PUSCH can be determined. Therefore, the terminal can determine the corresponding mapping scheme in the current transmission mode according to the identifier sent by the network side device. For example, the correspondence between the pre-established transmission parameters, mapping control parameters, and mapping schemes is shown in Table 3 below:
表3传输参数、映射控制参数以及映射方案的对应关系Table 3 Correspondence between transmission parameters, mapping control parameters and mapping schemes
上述的传输参数可以是如下参数中的一个或多个：重复传输的PUSCH的重复次数、起始符号、长度、是否跳频、分布模式等，在此不一一举例说明。The above transmission parameters may be one or more of the following parameters: the number of repetitions of the PUSCH to be repeatedly transmitted, the start symbol, the length, whether to hop frequency, the distribution mode, etc., which will not be illustrated here one by one.
这样，终端在接收到网络侧设备发送的包含DMRS标识的映射控制参数时，可以根据当前的PUSCH传输参数，确定对应的DMRS映射方案。且通过这种方式，原本对于每种映射方案都需要一个标识来表示，采用该实施方式中，可以极大减少标识的位数。In this way, when the terminal receives the mapping control parameter including the DMRS identifier sent by the network side device, it can determine the corresponding DMRS mapping scheme according to the current PUSCH transmission parameters. And in this way, each mapping scheme originally needs to be represented by an identifier. In this implementation manner, the number of digits of the identifier can be greatly reduced.
这样，通过建立传输参数、映射控制参数以及映射方案三者之间的对应关系，可以减少所述映射控制参数中的标识位数，有利于节省传输资源。In this way, by establishing the corresponding relationship among the transmission parameters, mapping control parameters and mapping schemes, the number of identification bits in the mapping control parameters can be reduced, which is beneficial to saving transmission resources.
本发明具体实施例中，还可以将一个时隙内连续传输的PUSCH视为一个扩展(extend)的PUSCH，而扩展(extend)的PUSCH按照类似R15中的DMRS映射方案，在扩展的PUSCH起始位置映射一个DMRS，在需要映射额外的DMRS时，基站通过RRC或DCI指示额外的DMRS的数量，或者额外的DMRS的数量以及额外的DMRS的位置。In the specific embodiment of the present invention, the PUSCH continuously transmitted in a time slot can also be regarded as an extended (extended) PUSCH, and the extended (extended) PUSCH is similar to the DMRS mapping scheme in R15, starting at the extended PUSCH The location maps one DMRS, and when additional DMRSs need to be mapped, the base station indicates the number of additional DMRSs, or the number of additional DMRSs and the locations of the additional DMRSs through RRC or DCI.
也就是说，本发明具体实施例中，所述的N个PUSCH可以是N+1个连续传输，且位于同一个时隙和同一个频带的PUSCH中的后N个PUSCH，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置。That is to say, in a specific embodiment of the present invention, the N PUSCHs may be N+1 consecutive transmissions and are located in the last N PUSCHs of the PUSCHs in the same time slot and the same frequency band, and the mapping control parameters It is used to determine: the number M of demodulation reference signals DMRS in the N PUSCHs, or the mapping control parameter is used to determine: the M, and the positions of the M DMRSs in the N PUSCHs.
换句话说，所述N个PUSCH为PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置。In other words, the N PUSCHs are the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence is mapped to There are DMRSs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs in the N position in a PUSCH.
例如，一个PUSCH的长度是2个OFDM符号，在一个时隙且同一频带连续的PUSCH有4个，即可以视为一个扩展的8个OFDM符号的PUSCH，UE在扩展的PUSCH的起始符号位置映射一个DMRS，在后续的7个OFDM符号位置，如果需要，基站通过DCI或RRC指示额外的DMRS的位置。具体指示时，可以按照符号位置或PUSCH位置指示。For example, the length of a PUSCH is 2 OFDM symbols, and there are 4 continuous PUSCHs in the same frequency band in one time slot, that is, it can be regarded as an extended PUSCH with 8 OFDM symbols, and the UE is at the starting symbol position of the extended PUSCH One DMRS is mapped, and in the subsequent 7 OFDM symbol positions, if necessary, the base station indicates the position of an additional DMRS through DCI or RRC. For specific indication, it can be indicated according to symbol position or PUSCH position.
本发明实施例中，上述终端可以是任何具有存储媒介的设备，例如：计算机(Computer)、手机、平板电脑(Tablet Personal Computer)、膝上型电脑(LaptopComputer)、个人数字助理(personal digital assistant，简称PDA)、移动上网装置(Mobile Internet Device，简称MID)或可穿戴式设备(Wearable Device)等终端设备。In the embodiment of the present invention, the above-mentioned terminal can be any device with a storage medium, such as: computer (Computer), mobile phone, tablet computer (Tablet Personal Computer), laptop computer (LaptopComputer), personal digital assistant (personal digital assistant, PDA for short), mobile Internet device (Mobile Internet Device, MID for short) or wearable device (Wearable Device) and other terminal equipment.
本实施例中的传输方法，通过接收网络侧设备发送的映射控制参数，从而可以根据映射控制参数，确定重复传输的N个PUSCH中，DMRS的数量M，或者确定所述M，以及M个DMRS在所述N个PUSCH中的位置，进而可以重复传输映射有所述M个DMRS的所述N个PUSCH。这样，在重复传输N个PUSCH时，可以根据映射控制参数来灵活确定DMRS的数量和/或位置，进而减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量。In the transmission method in this embodiment, by receiving the mapping control parameters sent by the network side equipment, the number M of DMRSs in the N PUSCHs that are repeatedly transmitted can be determined according to the mapping control parameters, or the M and M DMRSs can be determined. At positions in the N PUSCHs, the N PUSCHs mapped with the M DMRSs may be repeatedly transmitted. In this way, when N PUSCHs are repeatedly transmitted, the number and/or position of DMRS can be flexibly determined according to the mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system.
参见图7，图7是本发明实施例提供的另一种传输方法的流程图，应用于网络侧设备，如图7所示，所述传输方法包括以下步骤：Referring to FIG. 7, FIG. 7 is a flowchart of another transmission method provided by an embodiment of the present invention, which is applied to a network side device. As shown in FIG. 7, the transmission method includes the following steps:
步骤701、发送映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M。Step 701: Send a mapping control parameter, the mapping control parameter is used to determine: the number M of DMRS in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the number of M DMRSs in Positions in the N PUSCHs; both N and M are integers greater than 0, and N is greater than or equal to M.
步骤702、接收重复传输的映射有所述M个DMRS的所述N个PUSCH。Step 702: Receive the N PUSCHs mapped with the M DMRSs for repeated transmission.
其中，对于上述映射控制参数、N个PUSCH、DMRS的数量M和M个DMRS在所述N个PUSCH中的位置等的解释可以参见图3所示的方法实施例中的相关介绍，为避免重复说明，本实施例不再赘述。Wherein, for the explanation of the above-mentioned mapping control parameters, N PUSCHs, the number M of DMRSs, and the positions of M DMRSs in the N PUSCHs, etc., please refer to the relevant introduction in the method embodiment shown in FIG. 3 , in order to avoid duplication Note, this embodiment will not be repeated.
可选的，所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；Optionally, the mapping control parameter includes N indication bits, the N indication bits correspond to the N PUSCHs one by one, and each of the indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH ;
或or
所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换所述A个指示位，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；The mapping control parameter includes A indicator bits, where A is a positive integer not equal to N, and the terminal obtains N indicator bits corresponding to the N PUSCH one-to-one by converting the A indicator bits, and the N Each of the indicator bits in the indicator bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
或or
所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCH or symbols sharing one DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述映射控制参数还包括一位置指示参数，所述位置指示参数用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameter includes a density parameter, the mapping control parameter further includes a position indication parameter, and the position indication parameter is used to indicate the position of the DMRS in the L PUSCHs or symbols.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
可选的，所述N个PUSCH属于重复传输的O个PUSCH中的一部分，所述N个PUSCH位于同一个时隙和同一个频带，且在时域上连续，所述O为大于或等于N的整数。Optionally, the N PUSCHs are part of O PUSCHs that are repeatedly transmitted, the N PUSCHs are located in the same time slot and the same frequency band, and are continuous in the time domain, and the O is greater than or equal to N an integer of .
可选的，所述映射控制参数为：与所述N个PUSCH的当前传输参数和目标映射方案对应的参数。Optionally, the mapping control parameters are: parameters corresponding to current transmission parameters and target mapping schemes of the N PUSCHs.
可选的，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；Optionally, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的RRC信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the RRC signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的DCI信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by DCI signaling for activating the PUSCH.
本发明具体实施例中，所述N个PUSCH可以是PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置。In a specific embodiment of the present invention, the N PUSCHs may be the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence There are DMRSs mapped in the PUSCHs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs position in the N PUSCHs.
本实施例中，通过向终端发送映射控制参数，可以使终端根据映射控制参数，确定如何向网络侧设备重复传输映射有DMRS的N个PUSCH。这样，网络侧设备可以根据映射控制参数来灵活确定重复传输的N个PUSCH中的DMRS数量和/或位置，进而达到减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量的目的。In this embodiment, by sending the mapping control parameter to the terminal, the terminal can determine how to repeatedly transmit the N PUSCHs mapped with the DMRS to the network side device according to the mapping control parameter. In this way, the network side device can flexibly determine the number and/or position of DMRS in the N PUSCHs for repeated transmission according to the mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system.
参见图8，图8是本发明实施例提供的一种终端的结构示意图，如图8所示，终端800包括：Referring to FIG. 8, FIG. 8 is a schematic structural diagram of a terminal provided by an embodiment of the present invention. As shown in FIG. 8, the terminal 800 includes:
接收模块801，用于接收网络侧设备发送的映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；The receiving module 801 is configured to receive a mapping control parameter sent by the network side device, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the The M, and the positions of the M DMRSs in the N PUSCHs; the N and M are both integers greater than 0, and the N is greater than or equal to M;
传输模块802，用于重复传输映射有所述M个DMRS的所述N个PUSCH。The transmission module 802 is configured to repeatedly transmit the N PUSCHs mapped with the M DMRSs.
可选的，所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；Optionally, the mapping control parameter includes N indication bits, the N indication bits correspond to the N PUSCHs one by one, and each of the indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH ;
或or
所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换所述A个指示位，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；The mapping control parameter includes A indicator bits, where A is a positive integer not equal to N, and the terminal obtains N indicator bits corresponding to the N PUSCH one-to-one by converting the A indicator bits, and the N Each of the indicator bits in the indicator bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
或or
所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCH or symbols sharing one DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述映射控制参数还包括一位置指示参数，所述位置指示参数用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameter includes a density parameter, the mapping control parameter further includes a position indication parameter, and the position indication parameter is used to indicate the position of the DMRS in the L PUSCHs or symbols.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
可选的，所述N个PUSCH属于重复传输的O个PUSCH中的一部分，所述N个PUSCH位于同一个时隙和同一个频带，且在时域上连续，所述O为大于或等于N的整数。Optionally, the N PUSCHs are part of O PUSCHs that are repeatedly transmitted, the N PUSCHs are located in the same time slot and the same frequency band, and are continuous in the time domain, and the O is greater than or equal to N an integer of .
可选的，如图9所示，终端800还包括：Optionally, as shown in FIG. 9, the terminal 800 also includes:
获取模块803，用于根据传输参数、映射控制参数以及映射方案三者之间的对应关系，获取与所述N个PUSCH的当前传输参数和接收到的映射控制参数对应的映射方案；An acquisition module 803, configured to acquire a mapping scheme corresponding to the current transmission parameters of the N PUSCHs and the received mapping control parameters according to the correspondence between the transmission parameters, the mapping control parameters, and the mapping scheme;
确定模块804，用于根据所述映射方案确定所述M，以及M个DMRS在所述N个PUSCH中的位置。A determining module 804, configured to determine the M and the positions of the M DMRSs in the N PUSCHs according to the mapping scheme.
可选的，所述M等于1，且所述DMRS映射在第一个PUSCH中；Optionally, the M is equal to 1, and the DMRS is mapped in the first PUSCH;
或or
所述M等于N，且每一个PUSCH中映射有一个DMRS；The M is equal to N, and one DMRS is mapped in each PUSCH;
或or
所述M小于N，且时域上，相邻的DMRS之间间隔的PUSCH数量相同。The M is smaller than N, and in the time domain, the number of PUSCHs spaced between adjacent DMRSs is the same.
可选的，所述N个PUSCH的时域长度相同；Optionally, the time domain lengths of the N PUSCHs are the same;
或or
第一PUSCH的时域长度大于第二PUSCH的时域长度，且述第一PUSCH除DMRS所在符号之外的时域长度与所述第二PUSCH除DMRS所在符号之外的时域长度相同，所述第一PUSCH为映射有DMRS的PUSCH，所述第二PUSCH为未映射DMRS的PUSCH。The time domain length of the first PUSCH is greater than the time domain length of the second PUSCH, and the time domain length of the first PUSCH except the symbol where the DMRS is located is the same as the time domain length of the second PUSCH except the symbol where the DMRS is located, so The first PUSCH is a PUSCH mapped with a DMRS, and the second PUSCH is a PUSCH not mapped with a DMRS.
可选的，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；Optionally, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的无线资源控制RRC信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the radio resource control RRC signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的下行控制信息DCI信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by activating the downlink control information DCI signaling of the PUSCH.
本发明具体实施例中，所述N个PUSCH可以是PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置In a specific embodiment of the present invention, the N PUSCHs may be the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence There are DMRSs mapped in the PUSCHs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs Positions in the N PUSCHs
终端800能够实现图3的方法实施例中终端实现的各个过程，为避免重复，这里不再赘述。本发明实施例的终端800在重复传输N个PUSCH时，可以根据接收的映射控制参数来灵活确定DMRS的数量和/或位置，进而减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量。The terminal 800 can implement various processes implemented by the terminal in the method embodiment in FIG. 3 , and details are not repeated here to avoid repetition. When the terminal 800 in the embodiment of the present invention repeatedly transmits N PUSCHs, it can flexibly determine the number and/or position of DMRS according to the received mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system quantity.
参见图10，图10是本发明实施例提供的一种网络侧设备的结构示意图，如图10所示，网络侧设备1000包括：Referring to FIG. 10 , FIG. 10 is a schematic structural diagram of a network-side device provided by an embodiment of the present invention. As shown in FIG. 10 , the network-side device 1000 includes:
发送模块1001，用于发送映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；The sending module 1001 is configured to send a mapping control parameter, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the M The positions of the DMRSs in the N PUSCHs; the N and M are both integers greater than 0, and the N is greater than or equal to M;
接收模块1002，用于接收重复传输的映射有所述M个DMRS的所述N个PUSCH。The receiving module 1002 is configured to receive the N PUSCHs mapped with the M DMRSs for repeated transmission.
可选的，所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；Optionally, the mapping control parameter includes N indication bits, the N indication bits correspond to the N PUSCHs one by one, and each of the indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH ;
或or
所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换所述A个指示位，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；The mapping control parameter includes A indicator bits, where A is a positive integer not equal to N, and the terminal obtains N indicator bits corresponding to the N PUSCH one-to-one by converting the A indicator bits, and the N Each of the indicator bits in the indicator bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
或or
所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCH or symbols sharing one DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述映射控制参数还包括一位置指示参数，所述位置指示参数用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameter includes a density parameter, the mapping control parameter further includes a position indication parameter, and the position indication parameter is used to indicate the position of the DMRS in the L PUSCHs or symbols.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
可选的，所述N个PUSCH属于重复传输的O个PUSCH中的一部分，所述N个PUSCH位于同一个时隙和同一个频带，且在时域上连续，所述O为大于或等于N的整数。Optionally, the N PUSCHs are part of O PUSCHs that are repeatedly transmitted, the N PUSCHs are located in the same time slot and the same frequency band, and are continuous in the time domain, and the O is greater than or equal to N an integer of .
可选的，所述映射控制参数为：与所述N个PUSCH的当前传输参数和目标映射方案对应的参数。Optionally, the mapping control parameters are: parameters corresponding to current transmission parameters and target mapping schemes of the N PUSCHs.
可选的，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；Optionally, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的RRC信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the RRC signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的DCI信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by DCI signaling for activating the PUSCH.
本发明具体实施例中，所述N个PUSCH可以是PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置In a specific embodiment of the present invention, the N PUSCHs may be the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence There are DMRSs mapped in the PUSCHs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs Positions in the N PUSCHs
网络侧设备1000能够实现图7的方法实施例中网络侧设备实现的各个过程，为避免重复，这里不再赘述。本发明实施例的网络侧设备1000通过向终端发送映射控制参数，可以使终端根据映射控制参数，确定如何向网络侧设备重复传输映射有DMRS的N个PUSCH。这样，网络侧设备可以根据映射控制参数来灵活确定重复传输的N个PUSCH中的DMRS数量和/或位置，进而达到减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量的目的。The network-side device 1000 can implement various processes implemented by the network-side device in the method embodiment in FIG. 7 , and details are not repeated here to avoid repetition. The network-side device 1000 in the embodiment of the present invention can enable the terminal to determine how to repeatedly transmit N PUSCHs mapped with DMRS to the network-side device according to the mapping control parameters by sending the mapping control parameters to the terminal. In this way, the network side device can flexibly determine the number and/or position of DMRS in the N PUSCHs for repeated transmission according to the mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system.
参见图11，图11为实现本发明各个实施例的一种终端的硬件结构示意图，该终端1100包括但不限于：射频单元1101、网络模块1102、音频输出单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、接口单元1108、存储器1109、处理器1110、以及电源1111等部件。本领域技术人员可以理解，图11中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本发明实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。Referring to FIG. 11, FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention. The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, Display unit 1106, user input unit 1107, interface unit 1108, memory 1109, processor 1110, power supply 1111 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components. In the embodiment of the present invention, the terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.
其中，射频单元1101，用于接收网络侧设备发送的映射控制参数，所述映射控制参数用于确定：重复传输的N个物理上行共享信道PUSCH中，解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；Wherein, the radio frequency unit 1101 is configured to receive the mapping control parameter sent by the network side device, and the mapping control parameter is used to determine: the number M of demodulation reference signal DMRS in the N physical uplink shared channels PUSCH for repeated transmission, or, The mapping control parameter is used to determine: the M, and the positions of the M DMRSs in the N PUSCHs; both the N and M are integers greater than 0, and the N is greater than or equal to M;
重复传输映射有所述M个DMRS的所述N个PUSCH。The N PUSCHs mapped with the M DMRSs are repeatedly transmitted.
可选的，所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；Optionally, the mapping control parameter includes N indication bits, the N indication bits correspond to the N PUSCHs one by one, and each of the indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH ;
或or
所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换所述A个指示位，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；The mapping control parameter includes A indicator bits, where A is a positive integer not equal to N, and the terminal obtains N indicator bits corresponding to the N PUSCH one-to-one by converting the A indicator bits, and the N Each of the indicator bits in the indicator bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
或or
所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCH or symbols sharing one DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述映射控制参数还包括一位置指示参数，所述位置指示参数用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameter includes a density parameter, the mapping control parameter further includes a position indication parameter, and the position indication parameter is used to indicate the position of the DMRS in the L PUSCHs or symbols.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
可选的，所述N个PUSCH属于重复传输的O个PUSCH中的一部分，所述N个PUSCH位于同一个时隙和同一个频带，且在时域上连续，所述O为大于或等于N的整数。Optionally, the N PUSCHs are part of O PUSCHs that are repeatedly transmitted, the N PUSCHs are located in the same time slot and the same frequency band, and are continuous in the time domain, and the O is greater than or equal to N an integer of .
可选的，处理器1110用于：Optionally, the processor 1110 is used for:
根据传输参数、映射控制参数以及映射方案三者之间的对应关系，获取与所述N个PUSCH的当前传输参数和接收到的映射控制参数对应的映射方案；Acquire a mapping scheme corresponding to the current transmission parameters of the N PUSCHs and the received mapping control parameters according to the correspondence between the transmission parameters, the mapping control parameters, and the mapping scheme;
根据所述映射方案确定所述M，以及M个DMRS在所述N个PUSCH中的位置。Determine the M and the positions of the M DMRSs in the N PUSCHs according to the mapping scheme.
可选的，所述M等于1，且所述DMRS映射在第一个PUSCH中；Optionally, the M is equal to 1, and the DMRS is mapped in the first PUSCH;
或or
所述M等于N，且每一个PUSCH中映射有一个DMRS；The M is equal to N, and one DMRS is mapped in each PUSCH;
或or
所述M小于N，且时域上，相邻的DMRS之间间隔的PUSCH数量相同。The M is smaller than N, and in the time domain, the number of PUSCHs spaced between adjacent DMRSs is the same.
可选的，所述N个PUSCH的时域长度相同；Optionally, the time domain lengths of the N PUSCHs are the same;
或or
第一PUSCH的时域长度大于第二PUSCH的时域长度，且述第一PUSCH除DMRS所在符号之外的时域长度与所述第二PUSCH除DMRS所在符号之外的时域长度相同，所述第一PUSCH为映射有DMRS的PUSCH，所述第二PUSCH为未映射DMRS的PUSCH。The time domain length of the first PUSCH is greater than the time domain length of the second PUSCH, and the time domain length of the first PUSCH except the symbol where the DMRS is located is the same as the time domain length of the second PUSCH except the symbol where the DMRS is located, so The first PUSCH is a PUSCH mapped with a DMRS, and the second PUSCH is a PUSCH not mapped with a DMRS.
可选的，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；Optionally, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；或In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling; or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的无线资源控制RRC信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the radio resource control RRC signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的下行控制信息DCI信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by activating the downlink control information DCI signaling of the PUSCH.
本发明具体实施例中，所述N个PUSCH可以是PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置In a specific embodiment of the present invention, the N PUSCHs may be the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence There are DMRSs mapped in the PUSCHs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs Positions in the N PUSCHs
终端1100能够实现前述实施例中终端实现的各个过程，为避免重复，这里不再赘述。本发明实施例的终端1100在重复传输N个PUSCH时，可以根据接收的映射控制参数来灵活确定DMRS的数量和/或位置，进而减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量。The terminal 1100 can implement various processes implemented by the terminal in the foregoing embodiments, and to avoid repetition, details are not repeated here. When the terminal 1100 of the embodiment of the present invention repeatedly transmits N PUSCHs, it can flexibly determine the number and/or position of DMRS according to the received mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system quantity.
应理解的是，本发明实施例中，射频单元1101可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器1110处理；另外，将上行的数据发送给基站。通常，射频单元1101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元1101还可以通过无线通信系统与网络和其他设备通信。It should be understood that, in the embodiment of the present invention, the radio frequency unit 1101 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 1110; Uplink data is sent to the base station. Generally, the radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1101 can also communicate with the network and other devices through a wireless communication system.
终端通过网络模块1102为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。The terminal provides users with wireless broadband Internet access through the network module 1102, such as helping users send and receive emails, browse web pages, and access streaming media.
音频输出单元1103可以将射频单元1101或网络模块1102接收的或者在存储器1109中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元1103还可以提供与终端1100执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元1103包括扬声器、蜂鸣器以及受话器等。The audio output unit 1103 may convert audio data received by the radio frequency unit 1101 or the network module 1102 or stored in the memory 1109 into an audio signal and output as sound. Also, the audio output unit 1103 may also provide audio output related to a specific function performed by the terminal 1100 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 1103 includes a speaker, a buzzer, a receiver, and the like.
输入单元1104用于接收音频或视频信号。输入单元1104可以包括图形处理器(Graphics Processing Unit，简称GPU)11041和麦克风11042，图形处理器11041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元1106上。经图形处理器11041处理后的图像帧可以存储在存储器1109(或其它存储介质)中或者经由射频单元1101或网络模块1102进行发送。麦克风11042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元1101发送到移动通信基站的格式输出。The input unit 1104 is used to receive audio or video signals. The input unit 1104 may include a graphics processor (Graphics Processing Unit, referred to as GPU) 11041 and a microphone 11042, and the graphics processor 11041 controls still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Image data is processed. The processed image frames may be displayed on the display unit 1106 . The image frames processed by the graphics processor 11041 may be stored in the memory 1109 (or other storage medium) or sent via the radio frequency unit 1101 or the network module 1102 . The microphone 11042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format transmittable to a mobile communication base station via the radio frequency unit 1101 for output in the case of a phone call mode.
终端1100还包括至少一种传感器1105，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板11061的亮度，接近传感器可在终端1100移动到耳边时，关闭显示面板11061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器1105还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。The terminal 1100 also includes at least one sensor 1105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, where the ambient light sensor can adjust the brightness of the display panel 11061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 11061 and/or when the terminal 1100 moves to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, knocking), etc.; sensor 1105 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared ray Sensors, etc., will not be described in detail here.
显示单元1106用于显示由用户输入的信息或提供给用户的信息。显示单元1106可包括显示面板11061，可以采用液晶显示器(Liquid Crystal Display，简称LCD)、有机发光二极管(Organic Light-Emitting Diode,简称OLED)等形式来配置显示面板11061。The display unit 1106 is used to display information input by the user or information provided to the user. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a Liquid Crystal Display (LCD for short), an Organic Light-Emitting Diode (OLED for short), or the like.
用户输入单元1107可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元1107包括触控面板11071以及其他输入设备11072。触控面板11071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板11071上或在触控面板11071附近的操作)。触控面板11071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1110，接收处理器1110发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板11071。除了触控面板11071，用户输入单元1107还可以包括其他输入设备11072。具体地，其他输入设备11072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。The user input unit 1107 can be used to receive input number or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 1107 includes a touch panel 11071 and other input devices 11072 . The touch panel 11071, also referred to as a touch screen, can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger and a stylus on the touch panel 11071 or near the touch panel 11071 operate). The touch panel 11071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the For the processor 1110, receive the command sent by the processor 1110 and execute it. In addition, the touch panel 11071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 11071 , the user input unit 1107 may also include other input devices 11072 . Specifically, other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
进一步的，触控面板11071可覆盖在显示面板11061上，当触控面板11071检测到在其上或附近的触摸操作后，传送给处理器1110以确定触摸事件的类型，随后处理器1110根据触摸事件的类型在显示面板11061上提供相应的视觉输出。虽然在图11中，触控面板11071与显示面板11061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板11071与显示面板11061集成而实现终端的输入和输出功能，具体此处不做限定。Furthermore, the touch panel 11071 can be covered on the display panel 11061, and when the touch panel 11071 detects a touch operation on or near it, it will be sent to the processor 1110 to determine the type of the touch event, and then the processor 1110 will The type of event provides a corresponding visual output on the display panel 11061. Although in FIG. 11, the touch panel 11071 and the display panel 11061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 11071 and the display panel 11061 can be integrated to form Realize the input and output functions of the terminal, which is not limited here.
接口单元1108为外部装置与终端1100连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元1108可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端1100内的一个或多个元件或者可以用于在终端1100和外部装置之间传输数据。The interface unit 1108 is an interface for connecting an external device to the terminal 1100 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 1108 may be used to receive input from an external device (for example, data information, power, etc.) and transmit the received input to one or more elements within the terminal 1100 or may be used to interface transfer data between.
存储器1109可用于存储软件程序以及各种数据。存储器1109可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器1109可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The memory 1109 can be used to store software programs as well as various data. The memory 1109 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created by the use of mobile phones (such as audio data, phonebook, etc.), etc. In addition, the memory 1109 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.
处理器1110是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器1109内的软件程序和/或模块，以及调用存储在存储器1109内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器1110可包括一个或多个处理单元；优选的，处理器1110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1110中。The processor 1110 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. By running or executing software programs and/or modules stored in the memory 1109, and calling data stored in the memory 1109, execution Various functions and processing data of the terminal, so as to monitor the terminal as a whole. The processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1110 .
终端1100还可以包括给各个部件供电的电源1111(比如电池)，优选的，电源1111可以通过电源管理系统与处理器1110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。The terminal 1100 can also include a power supply 1111 (such as a battery) for supplying power to various components. Preferably, the power supply 1111 can be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Function.
另外，终端1100包括一些未示出的功能模块，在此不再赘述。In addition, the terminal 1100 includes some functional modules not shown, which will not be repeated here.
优选的，本发明实施例还提供一种终端，包括处理器1110，存储器1109，存储在存储器1109上并可在所述处理器1110上运行的计算机程序，该计算机程序被处理器1110执行时实现上述传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。Preferably, the embodiment of the present invention also provides a terminal, including a processor 1110, a memory 1109, a computer program stored in the memory 1109 and operable on the processor 1110, and the computer program is implemented when executed by the processor 1110 The various processes in the above embodiments of the transmission method can achieve the same technical effect, and will not be repeated here to avoid repetition.
本发明实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现图3所示的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the embodiment of the transmission method shown in FIG. 3 is implemented, and can achieve The same technical effects are not repeated here to avoid repetition. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.
参见图12，图12是本发明实施例提供的另一种网络侧设备的结构示意图。如图12所示，网络侧设备1200包括：处理器1201、存储器1202、总线接口1203和收发机1204，其中，处理器1201、存储器1202和收发机1204均连接至总线接口1203。Referring to FIG. 12 , FIG. 12 is a schematic structural diagram of another network side device provided by an embodiment of the present invention. As shown in FIG. 12 , the network side device 1200 includes: a processor 1201 , a memory 1202 , a bus interface 1203 and a transceiver 1204 , wherein the processor 1201 , the memory 1202 and the transceiver 1204 are all connected to the bus interface 1203 .
其中，在本发明实施例中，网络侧设备1200还包括：存储在存储器1202上并可在处理器1201上运行的计算机程序，计算机程序被处理器1201执行时实现如下步骤：Wherein, in the embodiment of the present invention, the network side device 1200 further includes: a computer program stored in the memory 1202 and operable on the processor 1201, and the computer program is executed by the processor 1201 to implement the following steps:
发送映射控制参数，所述映射控制参数用于确定：重复传输的N个PUSCH中，DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置；所述N和M均为大于0的整数，且所述N大于或等于M；Send a mapping control parameter, the mapping control parameter is used to determine: the number M of DMRSs in the N PUSCHs that are repeatedly transmitted, or the mapping control parameter is used to determine: the M, and the number of M DMRSs in the N A position in a PUSCH; the N and M are both integers greater than 0, and the N is greater than or equal to M;
接收重复传输的映射有所述M个DMRS的所述N个PUSCH。The N PUSCHs mapped with the M DMRSs are received for repeated transmission.
可选的，所述映射控制参数包括N个指示位，所述N个指示位与所述N个PUSCH一一对应，每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；Optionally, the mapping control parameter includes N indication bits, the N indication bits correspond to the N PUSCHs one by one, and each of the indication bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH ;
或or
所述映射控制参数包括A个指示位，所述A为不等于N的正整数，终端通过变换所述A个指示位，得到与所述N个PUSCH一一对应的N个指示位，N个指示位中的每一个所述指示位用于指示：对应的PUSCH中是否映射所述DMRS；The mapping control parameter includes A indicator bits, where A is a positive integer not equal to N, and the terminal obtains N indicator bits corresponding to the N PUSCH one-to-one by converting the A indicator bits, and the N Each of the indicator bits in the indicator bits is used to indicate: whether the DMRS is mapped in the corresponding PUSCH;
或or
所述映射控制参数包括密度参数，所述密度参数用于指示：共享一个DMRS的PUSCH或符号的数量L。The mapping control parameters include a density parameter, and the density parameter is used to indicate: the number L of PUSCH or symbols sharing one DMRS.
可选的，所述映射控制参数包括密度参数的情况下，所述映射控制参数还包括一位置指示参数，所述位置指示参数用于指示：DMRS在所述L个PUSCH或符号中的位置。Optionally, when the mapping control parameter includes a density parameter, the mapping control parameter further includes a position indication parameter, and the position indication parameter is used to indicate the position of the DMRS in the L PUSCHs or symbols.
可选的，所述映射控制参数包括密度参数的情况下，所述密度参数的取值与PUSCH的长度或信道状态相关。Optionally, when the mapping control parameters include a density parameter, the value of the density parameter is related to the length of the PUSCH or the channel state.
可选的，所述N个PUSCH属于重复传输的O个PUSCH中的一部分，所述N个PUSCH位于同一个时隙和同一个频带，且在时域上连续，所述O为大于或等于N的整数。Optionally, the N PUSCHs are part of O PUSCHs that are repeatedly transmitted, the N PUSCHs are located in the same time slot and the same frequency band, and are continuous in the time domain, and the O is greater than or equal to N an integer of .
可选的，所述映射控制参数为：与所述N个PUSCH的当前传输参数和目标映射方案对应的参数。Optionally, the mapping control parameters are: parameters corresponding to current transmission parameters and target mapping schemes of the N PUSCHs.
可选的，所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过上行授权传输；Optionally, when the PUSCH is a grant-based PUSCH, the mapping control parameter is transmitted through an uplink grant;
或or
所述PUSCH为基于授权的PUSCH的情况下，所述映射控制参数通过无线资源控制RRC信令传输；或In the case where the PUSCH is a grant-based PUSCH, the mapping control parameters are transmitted through radio resource control RRC signaling; or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过配置所述PUSCH的RRC信令传输；In the case where the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is transmitted by configuring the RRC signaling of the PUSCH;
或or
所述PUSCH为基于配置授权的PUSCH的情况下，所述映射控制参数通过激活所述PUSCH的DCI信令携带。In the case that the PUSCH is a PUSCH based on configuration authorization, the mapping control parameter is carried by DCI signaling for activating the PUSCH.
本发明具体实施例中，所述N个PUSCH可以是PUSCH序列中的后N个PUSCH，所述PUSCH序列包括N+1个在一个时隙中连续分布的PUSCH，所述PUSCH序列中的第一个PUSCH中映射有DMRS，所述映射控制参数用于确定：所述N个PUSCH中解调参考信号DMRS的数量M，或者，所述映射控制参数用于确定：所述M，以及M个DMRS在所述N个PUSCH中的位置In a specific embodiment of the present invention, the N PUSCHs may be the last N PUSCHs in the PUSCH sequence, the PUSCH sequence includes N+1 PUSCHs continuously distributed in one time slot, and the first PUSCH in the PUSCH sequence There are DMRSs mapped in the PUSCHs, the mapping control parameters are used to determine: the number M of demodulation reference signal DMRSs in the N PUSCHs, or the mapping control parameters are used to determine: the M, and the M DMRSs Positions in the N PUSCHs
网络侧设备1200能够实现前述实施例中网络侧设备实现的各个过程，为避免重复，这里不再赘述。本发明实施例的网络侧设备1200可以通过向终端发送映射控制参数，可以使终端根据映射控制参数，确定如何向网络侧设备重复传输映射有DMRS的N个PUSCH。这样，网络侧设备可以根据映射控制参数来灵活确定重复传输的N个PUSCH中的DMRS数量和/或位置，进而达到减少DMRS符号的密度，降低DMRS的开销，提高系统的上行吞吐量的目的。The network-side device 1200 can implement various processes implemented by the network-side device in the foregoing embodiments, and to avoid repetition, details are not repeated here. The network-side device 1200 in the embodiment of the present invention can send the mapping control parameter to the terminal, so that the terminal can determine how to repeatedly transmit N PUSCHs mapped with DMRS to the network-side device according to the mapping control parameter. In this way, the network side device can flexibly determine the number and/or position of DMRS in the N PUSCHs for repeated transmission according to the mapping control parameters, thereby reducing the density of DMRS symbols, reducing the overhead of DMRS, and improving the uplink throughput of the system.
本发明实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现图7所示的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如ROM、RAM、磁碟或者光盘等。The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, each process of the embodiment of the transmission method shown in FIG. 7 is implemented, and can achieve The same technical effects are not repeated here to avoid repetition. Wherein, the computer-readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk, and the like.
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, without departing from the gist of the present invention and the protection scope of the claims, many forms can also be made, all of which belong to the protection of the present invention.
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| CN201811291786.1ACN111130728B (en) | 2018-10-31 | 2018-10-31 | A transmission method, terminal and network side equipment |
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| CN201811291786.1ACN111130728B (en) | 2018-10-31 | 2018-10-31 | A transmission method, terminal and network side equipment |
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| CN201811291786.1AActiveCN111130728B (en) | 2018-10-31 | 2018-10-31 | A transmission method, terminal and network side equipment |
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