技术领域technical field
本发明涉及通信领域，特别涉及一种基站向终端传输控制信息的方法和系统。The present invention relates to the communication field, in particular to a method and system for transmitting control information from a base station to a terminal.
背景技术Background technique
LTE(长期演进，Long Term Evolution)项目是3G的演进，它改进并增强了3G的空中接入技术。采用OFDM(正交频分复用，Orthogonal FrequencyDivision Multiplexing)和MIMO(多输入多输出，Multiple-InputMultiple-Out-put)作为其无线网络演进的唯一标准。在20MHz频谱带宽下能够提供下行100Mbit/s与上行50Mbit/s的峰值速率。改善了小区边缘用户的性能，提高小区容量，并降低系统延迟。本发明所述的LTE系统包含了它的后续演进版本如LTE-A。The LTE (Long Term Evolution) project is an evolution of 3G, which improves and enhances the air access technology of 3G. Using OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input Multiple-Output) as the only standard for its wireless network evolution. Under the 20MHz spectrum bandwidth, it can provide the peak rate of downlink 100Mbit/s and uplink 50Mbit/s. It improves the performance of cell edge users, increases cell capacity, and reduces system delay. The LTE system described in the present invention includes its subsequent evolution version such as LTE-A.
在图1中描述了LTE的一种帧结构，1个无线帧包含10个子帧(subframe)、20个时隙(slot)，每个下行时隙又分为若干个OFDM符号，根据CP(循环前缀)的长度不同，包含的OFDM符号的数量也不同。当使用常规CP时，一个下行时隙包含7个OFDM符号；当使用扩展CP时，一个下行时隙包含6个OFDM符号。在这个时频资源块中，一个RE(resource element，资源单元)是一个符号和一条子载波定义的资源，一个RB(resource bock，资源块)是12条子载波和一个下行时隙所占用的时频资源。LTE的帧结构和包含的资源块定义根据不同的场景和配置会有不同的变化，本发明所描述的方法在各种其他可能的结构配置中均可适用，不局限于图1的描述。A frame structure of LTE is described in Fig. 1, a radio frame includes 10 subframes (subframe), 20 time slots (slot), each downlink time slot is divided into several OFDM symbols, according to CP (cyclic prefix) have different lengths, and the number of OFDM symbols included is also different. When a regular CP is used, one downlink time slot contains 7 OFDM symbols; when an extended CP is used, one downlink time slot contains 6 OFDM symbols. In this time-frequency resource block, an RE (resource element, resource unit) is a resource defined by a symbol and a subcarrier, and an RB (resource bock, resource block) is the time occupied by 12 subcarriers and a downlink time slot. audio resources. The LTE frame structure and the definition of the included resource blocks will vary according to different scenarios and configurations. The method described in the present invention is applicable to various other possible structural configurations, and is not limited to the description in FIG. 1 .
LTE系统通常在每个子帧中会映射不同物理信道到对应的资源上，在图2中描述了这些物理信道的资源映射示意。在资源映射中首先放置CRS(小区参考信号)，然后放置PCFICH(物理格式指示信道)，终端系统通过对PCFICH的解码可以得到在这个子帧中的控制区域所占据的时域符号数目，一般情况下基站系统会配置1-3个符号作为控制区域，而这个子帧剩下的符号作为数据区域用于承载PDSCH(物理下行共享信道)。基站继续在控制区域内放置PHICH(物理HARQ(混合自动重传)指示符信道)，在完成这些资源映射后，在控制区域内剩下的未使用资源被提取出来并重新编号作为PDCCH(物理下行控制信道)的候选资源。相关的CRS，PCFICH，PHICH的具体映射规则可以参考TS36.211标准。In an LTE system, different physical channels are usually mapped to corresponding resources in each subframe, and the resource mapping diagram of these physical channels is described in FIG. 2 . In resource mapping, place CRS (Cell Reference Signal) first, and then place PCFICH (Physical Format Indicator Channel). The terminal system can obtain the number of time domain symbols occupied by the control region in this subframe by decoding PCFICH. Generally, The lower base station system will configure 1-3 symbols as a control region, and the remaining symbols of this subframe are used as a data region to carry PDSCH (Physical Downlink Shared Channel). The base station continues to place PHICH (Physical HARQ (Hybrid Automatic Repeat) Indicator Channel) in the control area. After completing these resource mappings, the remaining unused resources in the control area are extracted and renumbered as PDCCH (Physical Downlink control channel) candidate resources. The specific mapping rules of related CRS, PCFICH, and PHICH can refer to the TS36.211 standard.
在LTE系统中，为了有效的配置PDCCH和其他下行控制信道，定义了两个专用的控制信道资源单位，REG(资源单元组，RE group)和CCE(控制信道粒子，Control Channel Element)，一个REG由四个频域上相邻的4个子载波组成，而一个CCE由若干REG构成，一个PDCCH又由若干个CCE构成，在这里存在多种不同的PDCCH格式选择，在表1中列举了PDCCH格式0-3的参数。PDCCH采用QPSK调制，因此相当于每条子载波可以承载2bit信息。In the LTE system, in order to effectively configure PDCCH and other downlink control channels, two dedicated control channel resource units are defined, REG (Resource Element Group, RE group) and CCE (Control Channel Element), a REG It is composed of four adjacent subcarriers in the frequency domain, and one CCE is composed of several REGs, and one PDCCH is composed of several CCEs. There are many different PDCCH format options, and the PDCCH formats are listed in Table 1. 0-3 parameters. The PDCCH is modulated by QPSK, so each subcarrier can carry 2 bits of information.
表1Table 1
LTE系统中，为了适用不同的传输环境和需求，设计了多种DCI(下行控制信息，Downlink Control Information)格式，来为对应的UE(终端)配置合适的传输方案，在DCI的信息里显式或隐含的包括了为该用户所选定的传输参数，例如该用户的资源分配，调制/编码方式选择等信息。In the LTE system, in order to adapt to different transmission environments and requirements, a variety of DCI (Downlink Control Information) formats are designed to configure appropriate transmission schemes for the corresponding UEs (terminals), which are explicitly displayed in the DCI information. Or implicitly include the transmission parameters selected for the user, such as the user's resource allocation, modulation/coding mode selection and other information.
在不同的传输模式和带宽下，DCI会有不同的比特数目，LTE系统根据这个数目和对应的UE的信道状况，选择能满足传输质量的PDCCH格式，将对应的DCI信息进行信道编码以产生将对应选定格式的编码后数据，一条DCI信息对应一个PDCCH数据。Under different transmission modes and bandwidths, DCI will have different numbers of bits. The LTE system selects a PDCCH format that can meet the transmission quality according to this number and the corresponding channel conditions of the UE, and performs channel coding on the corresponding DCI information to generate Corresponding to the coded data in the selected format, one piece of DCI information corresponds to one piece of PDCCH data.
PDCCH数据将按照下面的方法映射到物理资源上，PDCCH data will be mapped to physical resources according to the following method,
首先将控制区域的剩余RE资源提取出来并依次组合成NCCE个CCE，在其上定义搜索空间(search space)，在一个搜索空间上可能对应多个PDCCH候选。在搜索空间上对应第m个PDCCH的对应CCE为First, the remaining RE resources in the control area are extracted and sequentially combined into NCCE CCEs, on which a search space (search space) is defined, and one search space may correspond to multiple PDCCH candidates. The corresponding CCE corresponding to the mth PDCCH in the search space is
公式1 Formula 1
其中，i＝0，...L-1，L为选定PDCCH格式对应的CCE数目，也称为聚合度；Yk＝(A·Yk-1)modD，Y-1＝nRNTI≠0，A＝39827，D＝65537，ns是一个10ms无线帧内时隙序号。Wherein, i=0,...L-1, L is the number of CCEs corresponding to the selected PDCCH format, also called aggregation degree; Yk =(A·Yk-1 )modD, Y-1 =nRNTI ≠ 0, A=39827, D=65537, ns is a time slot sequence number in a 10ms radio frame.
RNTI用来区分PDCCH上承载的信息的用途，RNTI is used to distinguish the purpose of the information carried on the PDCCH,
目前，在标准中定义了一系列RNTI值，Currently, a range of RNTI values are defined in the standard,
(1)SI-RNTI：系统消息；(2)P-RNTI：寻呼；(3)RA-RNTI：标示用户发随机接入前导所使用的资源块；(4)C-RNTI：用户业务；(5)TPC-PUCCH-RNTI：PUCCH上行功控信息；(6)TPC-PUSCH-RNTI：PUSCH上行功控信息；(7)SPS C-RNTI的用法和C-RNTI是一样的，只是使用半静态调度的时候才用。(1) SI-RNTI: system message; (2) P-RNTI: paging; (3) RA-RNTI: indicates the resource block used by the user to send the random access preamble; (4) C-RNTI: user service; (5) TPC-PUCCH-RNTI: PUCCH uplink power control information; (6) TPC-PUSCH-RNTI: PUSCH uplink power control information; (7) The usage of SPS C-RNTI is the same as C-RNTI, only half Only used when static scheduling.
表2中描述3GPP系统对RNTI值的分配，来自3GPP TS36.3217.1节Table 2 describes the allocation of RNTI values by the 3GPP system, from Section 3GPP TS36.3217.1
表2Table 2
一种RNTI是在标准中已经定义好，所有的UE都需要监控，例如P-RNTI是FFFE，SI-RNTI是FFFF，当UE检测到这两个RNTI值的时候就知道上面承载的信息为用于寻呼的信令或者为高层的SIB(系统信息块，SystemInformation Block)信令，另外一种是动态分配，例如每个UE会在接入的过程中被分配一个唯一的C-RNTI，(小区无线网络临时标识，Cell Radio NetworkTemporary Identifier)当UE检测到和自己匹配的RNTI值的时候，就知道上面的信息是属于自己的，在映射这两类信息时，映射位置不同。如果是公共信令，则映射到一个公共搜索空间，方法是取Yk＝0，如果是终端自己的信令，则按照公式1映射到用户各自的搜索空间。相当于每个用户的搜索空间被伪随机的分配。One kind of RNTI has been defined in the standard, and all UEs need to monitor it. For example, P-RNTI is FFFE and SI-RNTI is FFFF. When the UE detects these two RNTI values, it knows that the information carried above is for use. Signaling for paging or high-level SIB (System Information Block, SystemInformation Block) signaling, the other is dynamic allocation, for example, each UE will be allocated a unique C-RNTI during the access process, ( Cell Radio Network Temporary Identifier) When the UE detects the RNTI value that matches itself, it knows that the above information belongs to itself. When mapping these two types of information, the mapping positions are different. If it is public signaling, it is mapped to a common search space by setting Yk =0; if it is the terminal's own signaling, it is mapped to the user's own search space according to formula 1. Equivalent to each user's search space is allocated pseudo-randomly.
在表3中定义了标准TS36.211支持的搜索空间和支持的PDCCH候选数目，PDCCH搜索空间和对应PDCCH选项(3GPP TS 26.2139.1.1节)。Table 3 defines the search space supported by the standard TS36.211 and the number of PDCCH candidates supported, the PDCCH search space and the corresponding PDCCH options (3GPP TS 26.2139.1.1 section).
表3table 3
终端在检测PDCCH信息的时候，需要尝试所有的PDCCH可能位置和DCI承载信息大小，当解码得到的数据满足它本身的CRC校验规则的时候才会认为得到了正确的配置信息。When detecting the PDCCH information, the terminal needs to try all the possible positions of the PDCCH and the size of the DCI bearer information. When the decoded data meets its own CRC check rule, it will consider that it has obtained the correct configuration information.
其中，用户空间和公共空间，用户空间之间是可以存在交叠的，因此可能会发生PDCCH资源冲撞，图3描述了发生冲撞的事例，UE 1为聚合度为4的搜索空间，UE 2为聚合度为8的搜索空间，UE 3为聚合度为1的搜索空间。在这种情况下，无论对UE 2如何分配，总会和UE 1或UE 3发生冲撞。Among them, user space, public space, and user space may overlap, so PDCCH resource collision may occur. Figure 3 describes an example of collision. UE 1 is a search space with an aggregation degree of 4, and UE 2 is A search space with an aggregation degree of 8, UE 3 is a search space with an aggregation degree of 1. In this case, no matter how UE 2 is allocated, there will always be a collision with UE 1 or UE 3.
基站通过调度来尽量避免信息相互的冲撞。但随着UE个数的增加，支持高容量传输的MIMO技术，以及单个UE支持多个CC(分量载波)的同时传输，以及异构网络的部署，需要传输的下行控制信息日益增多，这样PDCCH的容量受限问题日益明显。The base station tries to avoid information collision with each other through scheduling. However, with the increase in the number of UEs, the MIMO technology that supports high-capacity transmission, the simultaneous transmission of multiple CCs (component carriers) supported by a single UE, and the deployment of heterogeneous networks, more and more downlink control information needs to be transmitted. The problem of limited capacity is becoming more and more obvious.
在RAN1#meeting 67(3GPP的会议)中，编号为R1-113691的讨论文件中描述了一种利用虚拟用户在PDSCH区域中动态链式开辟扩展控制区域的方法，如图4所示，In RAN1#meeting 67 (3GPP meeting), the discussion document numbered R1-113691 describes a method of using virtual users to dynamically chain open extended control areas in the PDSCH area, as shown in Figure 4.
在该方法中，为一个不存在的UE分配了一个代表该UE的Z-RNTI，并安排这个虚拟终端vUE在传统PDCCH区域(子帧的控制区域)内按照传统的PDCCH传输方法承载DCI消息，在这个DCI消息的承载的bit经过重新定义，用于指示新开辟的扩展控制区域(ePDCCH区域)的位置信息和其中传输数据所用工作模式以及一些附加信息。如表4所示。In this method, a Z-RNTI representing the UE is assigned to a non-existent UE, and the virtual terminal vUE is arranged to carry DCI messages in the traditional PDCCH region (the control region of the subframe) according to the traditional PDCCH transmission method, The bits carried in the DCI message are redefined to indicate the location information of the newly opened extended control region (ePDCCH region), the working mode used for data transmission therein, and some additional information. As shown in Table 4.
表4Table 4
表4中给出一个DCI信息重新映射的范例。在这个表中，一些信息的定义。An example of DCI information remapping is given in Table 4. In this table, some information is defined.
ePDCCH/enhaced PDCCH indication：用于指示新开辟的扩展控制区域(ePDCCH区域)是指向PDSCH区域还是指向传统PDCCH区域，ePDCCH/enhaced PDCCH indication: used to indicate whether the newly opened extended control region (ePDCCH region) points to the PDSCH region or to the traditional PDCCH region,
Work_mode bits：用于指示新开辟的扩展控制区域所采用的传输数据所用工作模式。Work_mode bits: Used to indicate the working mode used to transmit data adopted by the newly opened extended control area.
ePDCCH time domain indication：用于指示新开辟的扩展控制区域的时域符号信息ePDCCH time domain indication: used to indicate the time domain symbol information of the newly opened extended control area
ePDCCH frequency domain indicaition：用于指示新开辟的扩展控制区域的频域PRB信息。ePDCCH frequency domain indicaition: Used to indicate the frequency domain PRB information of the newly opened extended control area.
CIF：用于指示跨载波调度的载波序号。CIF: Used to indicate the carrier sequence number for cross-carrier scheduling.
通过承载的DCI信息的重新定义，可以在子帧级别上实现动态多模式的开辟扩展控制区域，如图5所示。By redefining the carried DCI information, the dynamic multi-mode opening and expansion control area can be realized at the subframe level, as shown in FIG. 5 .
在该技术方案中，如果基站将终端的PDCCH映射到的扩展控制区域中数据传输数据所用工作模式不被终端支持，终端将无法成功解码，In this technical solution, if the base station maps the PDCCH of the terminal to the extended control area where the data transmission data is not supported by the terminal, the terminal will not be able to decode successfully.
一方面，由于终端的数据信道的处理时间要求，例如图6所示，基站需要知晓终端的处理能力。On the one hand, due to the processing time requirement of the data channel of the terminal, as shown in FIG. 6 for example, the base station needs to know the processing capability of the terminal.
在LTE FDD机制下，PDSCH采用HARQ方式传输的时候，需要在接收到PDSCH对应4ms的子帧上反馈对应的ACK/NACK信息，而扩展控制区域(ePDCCH)的FDM机制(FDM case)需要在接收到整个帧信息后才能开始寻找对应终端的PDCCH信息来解对应的PDSCH信息，无形中减少了终端的解码时间，提高了对终端的解码压力。而FDM/TDM机制可以让终端及早开始解码，但需要基站在调度的时候考虑更多的限制因素。因此如果基站知晓终端是否具有足够的解码能力，会有助于基站选择扩展控制区域的传输数据的传输方式，保证终端能够成功解码。Under the LTE FDD mechanism, when the PDSCH is transmitted in HARQ mode, it is necessary to feed back the corresponding ACK/NACK information on the 4ms subframe corresponding to the received PDSCH, and the FDM mechanism (FDM case) of the extended control region (ePDCCH) needs to be received After the entire frame information is obtained, the PDCCH information of the corresponding terminal can be searched to decode the corresponding PDSCH information, which virtually reduces the decoding time of the terminal and increases the decoding pressure on the terminal. The FDM/TDM mechanism allows the terminal to start decoding early, but requires the base station to consider more limiting factors when scheduling. Therefore, if the base station knows whether the terminal has sufficient decoding capability, it will help the base station to select the transmission mode of the transmission data in the extended control area, so as to ensure that the terminal can successfully decode.
另一方面是终端的控制信道处理能力，其中涉及终端盲检次数能力和支持的传输模式。Another aspect is the control channel processing capability of the terminal, which involves the capability of blind detection times and supported transmission modes of the terminal.
终端需要在扩展控制区域内进行盲检测来获得自己的PDCCH调度信息，而盲检测数量将会随着所检测的扩展控制区域的数目增加而自然增加，另外一个是支持的传输模式，例如终端支持扩展控制区域的传输模式类型逐步增加，不一定在最开始就同时支持所有的扩展控制区域的传输模式。The terminal needs to perform blind detection in the extended control area to obtain its own PDCCH scheduling information, and the number of blind detections will naturally increase as the number of detected extended control areas increases. The other is the supported transmission mode, for example, the terminal supports The types of transmission modes of the extended control area increase gradually, and it is not necessary to support all the transmission modes of the extended control area at the same time at the beginning.
终端可能会因为不支持传输控制信息所用的工作模式，而无法成功解码。An endpoint may not be able to decode successfully because it does not support the mode of operation used to transmit the control information.
发明内容Contents of the invention
本发明提供的基站向终端传输控制信息的方法和系统，以解决终端由于解码能力的限制而无法成功接收到控制信息的问题。The method and system for transmitting control information from a base station to a terminal provided by the present invention solve the problem that the terminal cannot successfully receive the control information due to the limitation of decoding capability.
本发明公开了一种基站向终端传输控制信息的方法，所述方法包括：The invention discloses a method for a base station to transmit control information to a terminal, and the method includes:
步骤1，终端向基站报告所述终端的允许工作模式；Step 1, the terminal reports the allowed working mode of the terminal to the base station;
步骤2，基站接收终端的报告，根据接收的各个终端的报告确定每个终端的实际支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际支持工作模式；Step 2, the base station receives the report of the terminal, determines the actual supported working mode of each terminal according to the received report of each terminal, and schedules the resource transmission terminal's physical layer downlink control channel PDCCH data according to the restriction condition, and the restriction condition includes the terminal's actual Support working mode;
步骤3，终端接收PDCCH数据获得控制信息。Step 3, the terminal receives the PDCCH data to obtain control information.
其中，所述步骤1包括：终端向基站报告所述终端的允许的最高能力工作模式；Wherein, the step 1 includes: the terminal reports to the base station the allowed highest capability working mode of the terminal;
所述根据接收的各个终端的报告确定每个终端的实际支持工作模式包括：The determining the actual supported working mode of each terminal according to the received reports of each terminal includes:
步骤21，根据接收的各个终端的报告统计基站对应小区中终端的工作模式的类型分布；Step 21, according to the received reports of each terminal, counting the type distribution of the operating mode of the terminal in the cell corresponding to the base station;
步骤22，通过将终端的实际支持工作模式降低为最高能力工作模式之下的工作模式调整基站对应小区中终端的工作模式的类型分布。Step 22, adjusting the type distribution of the terminal's working mode in the cell corresponding to the base station by reducing the actually supported working mode of the terminal to the working mode below the highest capability working mode.
其中，所述步骤2还包括：步骤31，基站将终端的实际支持工作模式通知给终端；Wherein, the step 2 further includes: step 31, the base station notifies the terminal of the actual supported working mode of the terminal;
所述步骤3包括：步骤32，终端以实际支持工作模式为限制接收PDCCH数据，获得控制信息。The step 3 includes: step 32, the terminal uses the actual supported working mode as a restriction to receive PDCCH data, and obtains control information.
其中，所述终端包括支持扩展的终端eUE；Wherein, the terminal includes a terminal eUE supporting extension;
所述步骤1前还包括：Also include before the step 1:
步骤41，为虚拟终端vUE分配无线网络临时标识RNTI，所述分配的RNTI为扩展无线网络临时标识Z-RNTI，eUE中具有所述Z-RNTI；Step 41, allocate a wireless network temporary identifier RNTI for the virtual terminal vUE, the allocated RNTI is an extended wireless network temporary identifier Z-RNTI, and the eUE has the Z-RNTI;
所述根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据包括：The physical layer downlink control channel PDCCH data of the physical layer downlink control channel of the transmission terminal according to the restriction condition scheduling includes:
步骤42，基站从子帧的数据区域的空闲资源中调取资源分配给扩展控制区域，将vUE的PDCCH映射到子帧的控制区域，将eUE的PDCCH映射到扩展控制区域，根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式；Step 42, the base station allocates resources from the free resources in the data area of the subframe to the extended control area, maps the PDCCH of the vUE to the control area of the subframe, and maps the PDCCH of the eUE to the extended control area, according to the extended control The actual supported working mode of the eUE mapped in the area determines the working mode used to transmit data in the extended control area;
步骤43，基站依据映射使用Z-RNTI在所述子帧的控制区域传输vUE的PDCCH数据，所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息，依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据；Step 43, the base station uses the Z-RNTI to transmit the PDCCH data of the vUE in the control region of the subframe according to the mapping, and the PDCCH data of the vUE includes resource allocation information indicating resources occupied by the extended control region and transmission data in the extended control region The working mode information of the working mode used, according to the mapping, using the cell radio network temporary identifier C-RNTI of the eUE to transmit the PDCCH data of the eUE;
所述步骤3包括：Said step 3 includes:
步骤44，eUE在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式通过eUE的C-RNTI检测PDCCH。Step 44, the eUE decodes the PDCCH data of the vUE according to the Z-RNTI in the search space of the control area of the subframe, and according to the resource allocation information and the working mode information in the PDCCH data, in the extended control area In the search space, the PDCCH is detected through the C-RNTI of the eUE according to the working mode used in the extended control region.
其中，所述扩展控制区域为多个扩展控制区域；Wherein, the extended control area is a plurality of extended control areas;
所述将eUE的PDCCH映射到扩展控制区域包括：步骤51，选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域；The mapping of the PDCCH of the eUE to the extended control area includes: step 51, the ability to select the working mode used for transmitting data is not higher than that of the eUE. An extended control area corresponding to the working mode actually supported by the eUE corresponds to the eUE, and the eUE is mapped to the corresponding extended control area. area;
所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息进一步为所述vUE的PDCCH数据中包含指示所述多个扩展控制区域占用的资源的资源分配信息，以及多个扩展控制区域中传输数据所用工作模式的工作模式信息；The PDCCH data of the vUE includes resource allocation information indicating the resources occupied by the extended control region and the working mode information of the working mode used to transmit data in the extended control region. Further, the PDCCH data of the vUE includes information indicating the plurality of extended control Resource allocation information of the resources occupied by the area, and working mode information of the working mode used to transmit data in multiple extended control areas;
所述依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据包括：The transmitting the PDCCH data of the eUE by using the cell radio network temporary identifier C-RNTI of the eUE according to the mapping includes:
步骤52，依据映射按扩展控制区域中传输数据所用的工作模式，使用所述eUE的C-RNTI在扩展控制区域传输所述eUE的PDCCH数据。Step 52: Transmit the PDCCH data of the eUE in the extended control region by using the C-RNTI of the eUE according to the working mode used for data transmission in the extended control region according to the mapping.
其中，所述扩展控制区域为多级链式扩展控制区域；Wherein, the extended control area is a multi-level chained extended control area;
所述将eUE的PDCCH映射到扩展控制区域包括：The mapping of the PDCCH of the eUE to the extended control region includes:
步骤61，选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域，所述eUE对应的扩展控制区域各个上级扩展控制区域所用工作模式的能力不高于所述eUE实际支持工作模式；Step 61: Select an extended control area whose ability to transmit data is not higher than the actual working mode supported by the eUE corresponds to the eUE, and map the eUE to the corresponding extended control area. The extended control area corresponding to the eUE is extended by each upper layer The ability to control the working mode used in the area is not higher than the actual supported working mode of the eUE;
所述步骤42还包括：Said step 42 also includes:
步骤62，基站将除第一级之外的每级扩展控制区域对应的PDCCH映射到链式中该级扩展控制区域的上一级扩展控制区域；Step 62, the base station maps the PDCCH corresponding to the extended control area of each level except the first level to the extended control area of the upper level of the extended control area of the level in the chain;
所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息进一步为vUE的PDCCH数据中包含指示第一级扩展控制区域占用的资源的资源分配信息和第一级扩展控制区域中传输数据所用工作模式的工作模式信息；The PDCCH data of the vUE includes resource allocation information indicating the resources occupied by the extended control region and the working mode information of the working mode used to transmit data in the extended control region. Further, the PDCCH data of the vUE includes information indicating the first-level extended control region occupied Resource allocation information of resources and working mode information of the working mode used to transmit data in the first-level extended control area;
所述步骤43还包括：Said step 43 also includes:
步骤63，使用Z-RNTI在除最后一级之外的每级扩展控制区域中传输该级扩展控制区域的下一级扩展控制区域对应的PDCCH数据，所述PDCCH数据中包含指示所述下一级扩展控制区域占用的资源的资源分配信息和下一级扩展控制区域中传输数据所用工作模式的工作模式信息；Step 63, using the Z-RNTI to transmit the PDCCH data corresponding to the extended control area of the next level in the extended control area of each level except the last level, and the PDCCH data contains instructions indicating the next level The resource allocation information of resources occupied by the extended control area of the next level and the working mode information of the working mode used to transmit data in the extended control area of the next level;
所述步骤44还包括：Said step 44 also includes:
步骤64，eUE依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过Z-RNTI解码扩展控制区域对应的PDCCH数据。Step 64: According to the resource allocation information and the working mode information in the PDCCH data, the eUE decodes the PDCCH data corresponding to the extended control region through the Z-RNTI according to the working mode used in the extended control region in the search space of the extended control region .
其中，所述eUE依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过所述eUE的C-RNTI检测PDCCH，通过Z-RNTI解码扩展控制区域对应的PDCCH数据包括：Wherein, according to the resource allocation information and the working mode information in the PDCCH data, the eUE detects the PDCCH through the C-RNTI of the eUE according to the working mode used in the extended control area in the search space of the extended control area, The PDCCH data corresponding to the extended control region decoded by Z-RNTI includes:
步骤71，以vUE的PDCCH数据中的所述资源分配信息指示的第一级扩展控制区域为当前解码的扩展控制区域；Step 71, using the first-level extended control region indicated by the resource allocation information in the PDCCH data of the vUE as the currently decoded extended control region;
步骤72，在当前解码的扩展控制区域的搜索空间内，按当前解码的扩展控制区域的工作模式，通过所述eUE的C-RNTI解码eUE的PDCCH数据，通过Z-RNTI解码下一级扩展控制区域对应的PDCCH数据；Step 72: In the search space of the currently decoded extended control area, according to the working mode of the currently decoded extended control area, decode the PDCCH data of the eUE through the C-RNTI of the eUE, and decode the next-level extended control data through the Z-RNTI PDCCH data corresponding to the area;
步骤73，如果解码出eUE的PDCCH数据，则结束解码操作；否则，以Z-RNTI解码出的PDCCH数据中的资源分配信息指示的下一级扩展控制区域为当前解码的扩展控制区域重复执行步骤72。Step 73, if the PDCCH data of the eUE is decoded, then end the decoding operation; otherwise, use the next-level extended control area indicated by the resource allocation information in the PDCCH data decoded by the Z-RNTI as the currently decoded extended control area to repeat the steps 72.
其中，所述将eUE的PDCCH映射到扩展控制区域包括：Wherein, the mapping of the PDCCH of the eUE to the extended control region includes:
步骤81，将实际支持工作模式为传统工作模式的eUE的PDCCH映射到子帧的控制区域，将实际支持工作模式的能力高于传统工作模式的eUE的PDCCH映射到扩展控制区；Step 81, mapping the PDCCH of the eUE that actually supports the traditional working mode to the control region of the subframe, and mapping the PDCCH of the eUE that actually supports the working mode higher than the traditional working mode to the extended control region;
所述步骤2还包括：Said step 2 also includes:
步骤82，基站将eUE的实际支持工作模式通知给eUE；Step 82, the base station notifies the eUE of the actual supported working mode of the eUE;
所述依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据包括：The transmitting the PDCCH data of the eUE by using the cell radio network temporary identifier C-RNTI of the eUE according to the mapping includes:
步骤83，基站依据映射使用所述eUE的小区无线网络临时标识C-RNTI在子帧的控制区域传输实际支持工作模式为传统工作模式的eUE的PDCCH数据，在扩展控制区域传输实际支持工作模式的能力高于传统工作模式的eUE的PDCCH数据；Step 83, the base station transmits the PDCCH data of the eUE whose actual supported working mode is the traditional working mode in the control area of the subframe according to the mapping and uses the cell radio network temporary identifier C-RNTI of the eUE, and transmits the actual supported working mode in the extended control area PDCCH data of eUE with higher capability than traditional working mode;
所述步骤3包括：Said step 3 includes:
步骤84，eUE在实际支持工作模式为传统工作模式时，在子帧的控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH；eUE在实际支持工作模式的能力高于传统工作模式时，在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH。Step 84: When the actual supported working mode of the eUE is the traditional working mode, the eUE detects the PDCCH through the C-RNTI of the eUE in the search space of the control region of the subframe; Decode the PDCCH data of the vUE according to the Z-RNTI in the search space of the control region of the subframe, and in the search space of the extended control region according to the resource allocation information and the working mode information in the PDCCH data The PDCCH is detected through the C-RNTI of the eUE.
其中，所述根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式包括：Wherein, the determining the working mode used for transmitting data in the extended control area according to the eUE actually supported working mode mapped in the extended control area includes:
步骤91，选择所述扩展控制区域中映射的eUE实际支持工作模式的交集中一种工作模式为扩展控制区域中传输数据所用工作模式。Step 91 , selecting one of the intersections of the eUE actually supported working modes mapped in the extended control area as the working mode used for data transmission in the extended control area.
本发明还公开了一种基站向终端传输控制信息的系统，所述系统包括：The present invention also discloses a system for transmitting control information from a base station to a terminal, and the system includes:
终端，用于向基站报告所述终端的允许工作模式，接收PDCCH数据获得控制信息；The terminal is configured to report the allowed working mode of the terminal to the base station, and receive PDCCH data to obtain control information;
基站，用于接收终端的报告，根据接收的各个终端的报告确定每个终端的实际支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际支持工作模式。The base station is used to receive reports from the terminals, determine the actual supported working mode of each terminal according to the received reports of each terminal, and schedule resources to transmit the physical layer downlink control channel PDCCH data of the terminals according to the constraints, the constraints include the actual conditions of the terminals Support working mode.
本发明实施例的有益效果是：终端向基站报告所述终端的支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际工作模式，使得基站在传输控制信息时考虑终端的工作模式，避免终端由于解码能力的限制而无法成功接收到控制信息；The beneficial effect of the embodiment of the present invention is that: the terminal reports the supported working mode of the terminal to the base station, and schedules resources to transmit the physical layer downlink control channel PDCCH data of the terminal according to the restrictive conditions, the restrictive conditions include the actual working mode of the terminal, so that the base station When transmitting control information, consider the working mode of the terminal to avoid the failure of the terminal to successfully receive control information due to the limitation of decoding capabilities;
进一步地，降低终端的实际工作模式，调整基站对应小区中终端的工作模式的类型分布，能够减少小区中终端的工作模式的类型数量，简化基站调度处理；Further, reducing the actual working mode of the terminal and adjusting the type distribution of the working mode of the terminal corresponding to the base station in the cell can reduce the number of types of the working mode of the terminal in the cell and simplify the base station scheduling process;
进一步地，将终端的实际工作模式告知终端，提高终端的解码效率；Further, inform the terminal of the actual working mode of the terminal to improve the decoding efficiency of the terminal;
进一步地，采用扩展控制区域传输eUE的PDCCH数据，能够增加资源数量，其中可以采用并行多个扩展控制区域或多级链式扩展控制区域的方式，提高资源利用率；Further, using the extended control region to transmit the PDCCH data of the eUE can increase the amount of resources, wherein multiple extended control regions in parallel or multi-stage chained extended control regions can be used to improve resource utilization;
进一步地，在多级链式扩展控制区域模式下，eUE所在级之上的各级扩展控制区域中eUE的实际工作模式的能力不高于终端实际支持工作模式，保征eUE在解码出该eUE的PDCCH数据前，能够成功解码出扩展控制区域对应的PDCCH数据。Furthermore, in the multi-level chain extended control area mode, the eUE's actual working mode capability in the extended control area of each level above the level where the eUE is located is not higher than the actual working mode supported by the terminal. PDCCH data corresponding to the extended control region can be successfully decoded before the PDCCH data.
附图说明Description of drawings
图1为LTE中帧结构的示意图；FIG. 1 is a schematic diagram of a frame structure in LTE;
图2是LTE中子帧物理资源映射示意图；FIG. 2 is a schematic diagram of subframe physical resource mapping in LTE;
图3是PDCCH资源发生冲撞的示意图；FIG. 3 is a schematic diagram of collision of PDCCH resources;
图4是PDCCH动态链式开辟二级扩展控制区域的示意图；Fig. 4 is a schematic diagram of PDCCH dynamic chain opening up a secondary extended control area;
图5是PDCCH动态链式开辟三级扩展控制区域的示意图；FIG. 5 is a schematic diagram of PDCCH dynamic chain opening of three-level extended control areas;
图6是扩展控制区域的FDM和FDM/TDM格式对应HARQ下的处理时延限制示意图；FIG. 6 is a schematic diagram of the processing delay limitation under HARQ corresponding to the FDM and FDM/TDM formats of the extended control region;
图7是本发明基站向终端传输控制信息的方法的流程图；FIG. 7 is a flowchart of a method for transmitting control information from a base station to a terminal according to the present invention;
图8是本发明终端和基站将消息交互的示意图；FIG. 8 is a schematic diagram of message interaction between a terminal and a base station according to the present invention;
图9是现有技术竞争随机接入过程的示意图；FIG. 9 is a schematic diagram of a contention random access process in the prior art;
图10是本发明链式扩展控制区域中传输控制消息的示意图。Fig. 10 is a schematic diagram of transmission control messages in the chain extended control area of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
参见图7，是本发明基站向终端传输控制信息的方法的流程图。Referring to FIG. 7 , it is a flowchart of a method for a base station to transmit control information to a terminal according to the present invention.
步骤S100，终端向基站报告所述终端的允许工作模式。In step S100, the terminal reports the allowed working mode of the terminal to the base station.
终端的允许工作方式为终端能够支持的所有工作方式。The allowed working modes of the terminal are all the working modes that the terminal can support.
步骤S200，基站接收终端的报告，根据接收的各个终端的报告确定每个终端的实际支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际支持工作模式。Step S200, the base station receives the report of the terminal, determines the actual supported working mode of each terminal according to the received report of each terminal, and schedules the resource transmission terminal's physical layer downlink control channel PDCCH data according to the restriction condition, and the restriction condition includes the terminal's actual Support working mode.
实际支持工作模式为终端在实际传输中可以使用的工作模式。The actual supported working mode is the working mode that the terminal can use in actual transmission.
其中，工作模式的参数包括下述参数中的一个或多个，Wherein, the parameters of the working mode include one or more of the following parameters,
终端支持的最大扩展时域符号编码，终端支持的盲检测次数，终端支持的传输模式。The maximum extended time-domain symbol coding supported by the terminal, the number of blind detection times supported by the terminal, and the transmission mode supported by the terminal.
步骤S300，终端接收PDCCH数据获得控制信息。In step S300, the terminal receives PDCCH data to obtain control information.
在一具体实施方式中，终端向基站报告所述终端的允许工作模式包括终端向基站报告所述终端的允许的最高能力工作模式。终端支持该允许的最高能力工作模式和该最高能力工作模式之下的所有工作模式。In a specific implementation manner, the terminal reporting the allowed working mode of the terminal to the base station includes the terminal reporting the highest allowed working mode of the terminal to the base station. The terminal supports the allowed highest capability working mode and all working modes under the highest capability working mode.
根据接收的各个终端的报告确定每个终端的实际支持工作模式为确定每个终端的实际支持工作模式为该终端允许的最高能力工作模式。Determining the actual supported working mode of each terminal according to the received reports of each terminal is determining that the actually supported working mode of each terminal is the highest capability working mode allowed by the terminal.
其中，终端向基站报告的该eUE允许工作模式包括下述的一个或多个参数，所述参数包括终端支持的最大扩展时域符号编码，终端支持的盲检测次数，终端支持的传输模式。这些支持的工作模式的指示的报告可以分别独立定义。Wherein, the allowed working mode of the eUE reported by the terminal to the base station includes one or more of the following parameters, the parameters including the maximum extended time-domain symbol coding supported by the terminal, the number of times of blind detection supported by the terminal, and the transmission mode supported by the terminal. Reports of indications of these supported operating modes can be defined independently.
如表5至7所示。As shown in Tables 5 to 7.
以两bit编码方式为例，表5为终端可接受的最大扩展时域符号编码的举例。Taking the two-bit encoding method as an example, Table 5 is an example of the maximum extended time-domain symbol encoding acceptable to the terminal.
表5table 5
表6为终端支持的盲检测次数编码的举例。Table 6 is an example of coding of blind detection times supported by the terminal.
表6Table 6
表7为一种表示终端支持的传输模式的变长编码方式的举例。以支持8种方法为例，以变长编码来表示终端能支持的传输模式。Table 7 is an example of a variable-length coding manner representing a transmission mode supported by a terminal. Taking support for 8 methods as an example, the transmission mode that the terminal can support is represented by variable length coding.
表7Table 7
当开发终端支持的工作模式的时候，如果是按上述每个参数中该参数各种方式的编号顺序依次进行开发，对于一个参数，终端可以反馈该终端允许的该参数的多个方式中最高编号，表示该终端支持该最高编号之前的全部编码对应的方式。When developing the working mode supported by the terminal, if the development is carried out in sequence according to the numbering order of the various modes of the parameter in each of the above parameters, for a parameter, the terminal can feedback the highest number among the multiple modes of the parameter allowed by the terminal , indicating that the terminal supports all codes corresponding to the highest number.
也可以定义终端的能力类型，一种能力类型同时对应一组参数分别指定该类型对应的一系列参数，如表8所示。表8为一种将终端支持的工作模式划分为能力类型的编码方式举例。It is also possible to define the capability type of the terminal. A capability type corresponds to a set of parameters at the same time, specifying a series of parameters corresponding to the type, as shown in Table 8. Table 8 is an example of a coding manner for dividing the working modes supported by the terminal into capability types.
表8Table 8
在一较佳的实施方式中，基站通过降低终端实际支持工作模式的能力调整基站对应小区中终端的工作模式的类型分布。In a preferred implementation manner, the base station adjusts the type distribution of the terminal's working modes in the cell corresponding to the base station by reducing the capability of the terminal to actually support the working mode.
所述步骤S100包括：终端向基站报告所述终端的允许的最高能力工作模式。The step S100 includes: the terminal reports the highest allowed working mode of the terminal to the base station.
所述根据接收的各个终端的报告确定每个终端的实际支持工作模式包括：The determining the actual supported working mode of each terminal according to the received reports of each terminal includes:
步骤S210，根据接收的各个终端的报告统计基站对应小区中终端的工作模式的类型分布。In step S210, according to the received reports of each terminal, the type distribution of the operating modes of the terminals in the cell corresponding to the base station is counted.
具体而言，按终端允许的最高能力的工作模式将终端分类，每个分类对应一个工作模式类型。Specifically, the terminal is classified according to the working mode with the highest capability allowed by the terminal, and each classification corresponds to a working mode type.
步骤S220，通过将终端的实际支持工作模式降低为最高能力工作模式之下的工作模式调整基站对应小区中终端的工作模式的类型分布。Step S220, adjusting the type distribution of the terminal's working mode in the cell corresponding to the base station by reducing the actually supported working mode of the terminal to the working mode below the highest capability working mode.
具体而言，基站将终端数量小于预设数量阀值的工作模式的类型中终端合并为一个工作模式的类型，所述合并后的工作模式的类型中终端实际支持工作模式为该类型中终端允许的工作能力的交集。Specifically, the base station merges the terminals in the types of working modes whose number of terminals is less than the preset number threshold into one type of working mode, and the actually supported working mode of the terminals in the type of working mode after the combination is that the terminals in this type allow The intersection of working ability.
例如，类型1和类型2中终端数量小于预设数量阀值，则将类型1和类型2合并，类型1中终端允许工作模式中最高能力的工作模式为2级，类型2中终端允许工作模式中最高能力的工作模式为3级，则合并后的类型中终端实际支持工作模式为2级和1级，此时，将原类型2中终端实际支持工作模式降为2级和1级的工作模式，不再包括3级的工作模式，原类型1中终端终端实际支持工作模式仍为2级和1级的工作模式。For example, if the number of terminals in Type 1 and Type 2 is less than the preset number threshold, Type 1 and Type 2 will be merged. In Type 1, the working mode with the highest capability among the allowed working modes of the terminal is level 2. In Type 2, the allowed working mode of the terminal is The working mode with the highest capability is level 3, then the actual supported working mode of the terminal in the merged type is level 2 and level 1. At this time, the actual supporting working mode of the terminal in the original type 2 is reduced to the work of level 2 and level 1 Mode, no longer includes the level 3 working mode, and the actual supported working mode of the terminal terminal in the original type 1 is still the working mode of level 2 and level 1.
在一较佳的实施方式中，基站向终端回复实际支持工作模式。In a preferred implementation manner, the base station replies to the terminal about the actual supported working mode.
所述步骤S200还包括：基站将终端的实际支持工作模式通知给终端；The step S200 also includes: the base station notifies the terminal of the actual supported working mode of the terminal;
所述步骤S300包括：终端以实际支持工作模式为限制接收PDCCH数据，获得控制信息。The step S300 includes: the terminal obtains control information by restricting receiving PDCCH data in the actually supported working mode.
终端在接收时所用工作模式的能力不会超出该实际支持工作模式的能力。The capabilities of the operating mode used by the terminal at the time of reception will not exceed the capabilities of the actual supported operating mode.
在一较佳的实施方式中，所述终端向基站报告所述终端的允许工作模式包括如下步骤。参见图8，是本发明终端和基站将消息交互的示意图。In a preferred implementation manner, the terminal reporting the allowed working mode of the terminal to the base station includes the following steps. Referring to FIG. 8 , it is a schematic diagram of message interaction between a terminal and a base station according to the present invention.
步骤S801，终端向基站发送报告该终端的允许工作方式的消息。In step S801, the terminal sends a message reporting the allowed working mode of the terminal to the base station.
步骤S802，基站根据接收的各个终端的报告确定每个终端的实际支持工作模式，向终端告知该终端的实际支持工作模式。Step S802, the base station determines the actual supported working mode of each terminal according to the received reports of each terminal, and informs the terminal of the actually supported working mode of the terminal.
步骤S803，终端接收到基站发送的消息后，回复确认消息。In step S803, after receiving the message sent by the base station, the terminal replies with a confirmation message.
步骤S804，基站接收到确认消息后，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据。Step S804, after receiving the acknowledgment message, the base station schedules resources to transmit data of the physical layer downlink control channel PDCCH of the terminal according to the restriction condition.
例如，基站在子帧的控制区域和扩展控制区域中进行数据传输。For example, the base station performs data transmission in the control region and the extended control region of the subframe.
步骤S805，终端以实际支持工作模式为限制接收PDCCH数据，获得控制信息。In step S805, the terminal restricts receiving PDCCH data in the actual supported working mode, and obtains control information.
参见图9，为竞争随机接入过程的示意图。Referring to FIG. 9 , it is a schematic diagram of a contention random access process.
步骤S901，在发送上行接入前导序列之前，终端应该已经完成与基站的下行同步，下行同步意味着终端获得了帧同步以及系统广播消息，但是上行并没有同步。通过前导序列，基站知道存在一个终端试图跟基站建立连接。Step S901, before sending the uplink access preamble, the terminal should have completed the downlink synchronization with the base station. The downlink synchronization means that the terminal has obtained frame synchronization and system broadcast messages, but the uplink has not. Through the preamble sequence, the base station knows that there is a terminal trying to establish a connection with the base station.
根据确认的前导分配相应的资源用于发送消息3(MSG3)。Corresponding resources are allocated for sending message 3 (MSG3) according to the preamble of the acknowledgment.
步骤S902，基站通过时隙调整确保上行同步，也就是发送time-advance消息实现；同时分配上行资源，这些内容就是由随机接入响应消息携带。In step S902, the base station ensures uplink synchronization through time slot adjustment, that is, sends a time-advance message; at the same time allocates uplink resources, and these contents are carried in the random access response message.
步骤S903，在已经分配的资源上发送用户ID，以及相应的UL-SCH(上行共享信道)信息用于发送用户ID以及RRC(无线资源控制)连接请求之类的等基本信息，也就是所谓的消息3(MSG3)，具体内容跟用户所处的状态相关。Step S903, send the user ID on the allocated resources, and the corresponding UL-SCH (uplink shared channel) information is used to send basic information such as user ID and RRC (radio resource control) connection request, which is the so-called Message 3 (MSG3), the specific content is related to the state of the user.
终端利用该消息3报告终端的允许工作模式。The terminal uses this message 3 to report the allowed working mode of the terminal.
步骤S904，通过DL-SCH(下行共享信道)发送冲突解决消息到终端。Step S904, sending a conflict resolution message to the terminal through DL-SCH (downlink shared channel).
基站利用冲突解决消息对终端的实际支持工作模式进行确认，或利用部分重定义的消息比特在将终端的实际支持工作模式降低为小于终端允许的最高能力工作模式之下的工作模式时，向终端回复该实际支持工作模式。The base station uses the conflict resolution message to confirm the actual supported working mode of the terminal, or uses the partially redefined message bits to reduce the actual supported working mode of the terminal to a working mode lower than the highest capability working mode allowed by the terminal, and sends a message to the terminal Reply to the actual support working mode.
终端如果回复确认消息，则通过物理层以上的上层信令进行回复。If the terminal replies with an acknowledgment message, it replies through upper layer signaling above the physical layer.
只有第一步是纯粹的物理层过层，后面三个步骤跟普通的数据传输过程没有区别，在MAC协议中经常看到MSG3或者MSG4等等，因为在随机接入的过程中，这些消息的内容不是固定，有时候可能携带的是RRC连接请求，有时候可能会带一些控制消息甚至业务数据包，因此简称为消息3之类，其意思就是第三条消息。Only the first step is a purely physical layer pass, and the next three steps are no different from the ordinary data transmission process. In the MAC protocol, MSG3 or MSG4, etc. are often seen, because in the process of random access, the information of these messages The content is not fixed, sometimes it may carry an RRC connection request, and sometimes it may carry some control messages or even business data packets, so it is called message 3 for short, which means the third message.
在一较佳的实施方式中，采用扩展控制区域传输控制消息。In a preferred implementation manner, the extended control area is used to transmit the control message.
所述终端包括支持扩展的终端eUE。The terminal includes a terminal eUE supporting extensions.
所述步骤S100前还包括：为虚拟终端vUE分配无线网络临时标识RNTI，所述分配的RNTI为扩展无线网络临时标识Z-RNTI，eUE中具有所述Z-RNTI。Before the step S100, it also includes: assigning a radio network temporary identifier RNTI to the virtual terminal vUE, the assigned RNTI is an extended radio network temporary identifier Z-RNTI, and the eUE has the Z-RNTI.
步骤S100，终端向基站报告所述终端的允许工作模式。In step S100, the terminal reports the allowed working mode of the terminal to the base station.
步骤S200，基站接收终端的报告，根据接收的各个终端的报告确定每个终端的实际支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际支持工作模式。Step S200, the base station receives the report of the terminal, determines the actual supported working mode of each terminal according to the received report of each terminal, and schedules the resource transmission terminal's physical layer downlink control channel PDCCH data according to the restriction condition, and the restriction condition includes the terminal's actual Support working mode.
所述根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据包括：The physical layer downlink control channel PDCCH data of the physical layer downlink control channel of the transmission terminal according to the restriction condition scheduling includes:
步骤S210A，基站从子帧的数据区域的空闲资源中调取资源分配给扩展控制区域，将vUE的PDCCH映射到子帧的控制区域，将eUE的PDCCH映射到扩展控制区域，根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式。Step S210A, the base station allocates resources from the free resources in the data area of the subframe to the extended control area, maps the PDCCH of the vUE to the control area of the subframe, and maps the PDCCH of the eUE to the extended control area, according to the extended control The working mode actually supported by the eUE mapped in the area determines the working mode used for data transmission in the extended control area.
具体而言，所述根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式包括：选择所述扩展控制区域中映射的eUE实际支持工作模式的交集中一种工作模式为扩展控制区域中传输数据所用工作模式。Specifically, the determining the working mode used for transmitting data in the extended control area according to the eUE actually supported working mode mapped in the extended control area includes: selecting one of the intersections of the eUE actually supported working modes mapped in the extended control area The first working mode is the working mode used to transmit data in the extended control area.
其中，选择方式包括多种。例如，依据调度算法进行选择，或者选择交集中能力最高的工作模式，或者按配置选择交集中一种工作模式。Among them, there are multiple selection methods. For example, the selection is made according to the scheduling algorithm, or the working mode with the highest capability in the intersection is selected, or one of the working modes in the intersection is selected according to the configuration.
步骤S220A，基站依据映射使用Z-RNTI在所述子帧的控制区域传输vUE的PDCCH数据，所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息，依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据。Step S220A, the base station uses the Z-RNTI to transmit the PDCCH data of the vUE in the control region of the subframe according to the mapping, and the PDCCH data of the vUE includes resource allocation information indicating resources occupied by the extended control region and transmission data in the extended control region According to the working mode information of the working mode used, the cell radio network temporary identifier C-RNTI of the eUE is used to transmit the PDCCH data of the eUE according to the mapping.
所述步骤S300包括：eUE在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式通过eUE的C-RNTI检测PDCCH。The step S300 includes: the eUE decodes the PDCCH data of the vUE according to the Z-RNTI in the search space of the control region of the subframe, and according to the resource allocation information and the working mode information in the PDCCH data, expand In the search space of the control region, the PDCCH is detected through the C-RNTI of the eUE according to the working mode used in the extended control region.
进一步地，在使用同一级多个扩展控制区域时，按如下步骤进行操作。Furthermore, when using multiple extended control areas at the same level, proceed as follows.
所述扩展控制区域为多个扩展控制区域。The extended control area is a plurality of extended control areas.
所述将eUE的PDCCH映射到扩展控制区域包括：The mapping of the PDCCH of the eUE to the extended control region includes:
步骤S211A，选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域。In step S211A, an extended control area whose ability to select the working mode used for data transmission is not higher than the working mode actually supported by the eUE corresponds to the eUE, and maps the eUE to the corresponding extended control area.
所述选择的方式包括多种。例如，按调度算法进行选择，或者按配置进行选择。There are many ways to choose. For example, choose by scheduling algorithm, or choose by configuration.
所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息进一步为所述vUE的PDCCH数据中包含指示所述多个扩展控制区域占用的资源的资源分配信息，以及多个扩展控制区域中传输数据所用工作模式的工作模式信息。The PDCCH data of the vUE includes resource allocation information indicating the resources occupied by the extended control region and the working mode information of the working mode used to transmit data in the extended control region. Further, the PDCCH data of the vUE includes information indicating the plurality of extended control The resource allocation information of the resources occupied by the region, and the working mode information of the working mode used to transmit data in multiple extended control regions.
基站可以通过多种方式传输vUE的PDCCH数据。例如，基站使用vUE的Z-RNTI在子帧的控制区域的该Z-RNTI的搜索空间并行传输该vUE的多个PDCCH的数据；或者，基站使用vUE的Z-RNTI在子帧的控制区域的所述Z-RNTI的搜索空间传输所述vUE的PDCCH数据。The base station can transmit the PDCCH data of the vUE in various ways. For example, the base station uses the Z-RNTI of the vUE to transmit data of multiple PDCCHs of the vUE in parallel in the search space of the Z-RNTI in the control region of the subframe; The search space of the Z-RNTI transmits the PDCCH data of the vUE.
所述S220A中依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据包括：依据映射按扩展控制区域中传输数据所用的工作模式，使用所述eUE的小区无线网络临时标识C-RNTI在eUE映射的扩展控制区域传输所述eUE的PDCCH数据。Using the cell radio network temporary identifier C-RNTI of the eUE to transmit the PDCCH data of the eUE according to the mapping in the S220A includes: using the cell radio network of the eUE according to the working mode used for data transmission in the extended control area according to the mapping The temporary identifier C-RNTI transmits the PDCCH data of the eUE in the extended control region mapped to the eUE.
进一步地，在使用多级链式扩展控制区域时，按如下步骤进行操作。Furthermore, when using a multi-level chain to expand the control area, follow the steps below.
所述扩展控制区域为多级链式扩展控制区域。The extended control area is a multi-level chained extended control area.
所述将eUE的PDCCH映射到扩展控制区域包括：The mapping of the PDCCH of the eUE to the extended control region includes:
步骤S221B，选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域，所述eUE对应的扩展控制区域各个上级扩展控制区域所用工作模式的能力不高于所述eUE实际支持工作模式。Step S221B, select an extended control area whose ability to transmit data is not higher than the working mode actually supported by the eUE corresponds to the eUE, and map the eUE to the corresponding extended control area, and the extended control area corresponding to the eUE is extended by each upper layer The capability of the working mode used in the control area is not higher than the working mode actually supported by the eUE.
所述选择的方式包括多种。例如，按调度算法进行选择，或者按配置进行选择。There are many ways to choose. For example, choose by scheduling algorithm, or choose by configuration.
将盲检次数能力低的终端映射到扩展控制区域的链式的后面级，在选择时，在一个终端得到它对应的PDCCH信息之前，所选择的终端进行解码的扩展控制区域中的编码格式都被该终端所支持。保证终端能够获得控制信息。Map terminals with low blind detection capability to the subsequent stage of the chain in the extended control region. When selecting, before a terminal obtains its corresponding PDCCH information, the encoding formats in the extended control region that the selected terminal decodes are all supported by this terminal. Ensure that the terminal can obtain control information.
所述步骤S210A还包括：基站将除第一级之外的每级扩展控制区域对应的PDCCH映射到链式中该级扩展控制区域的上一级扩展控制区域。The step S210A further includes: the base station maps the PDCCH corresponding to the extended control region of each stage except the first stage to the extended control region of the upper stage of the extended control region of this stage in the chain.
所述步骤220A包括：The step 220A includes:
基站依据映射使用Z-RNTI在所述子帧的控制区域传输vUE的PDCCH数据，所述vUE的PDCCH数据中包含指示第一级扩展控制区域占用的资源的资源分配信息和第一级扩展控制区域中传输数据所用工作模式的工作模式信息；The base station uses the Z-RNTI to transmit the PDCCH data of the vUE in the control area of the subframe according to the mapping, and the PDCCH data of the vUE includes resource allocation information indicating resources occupied by the first-level extended control area and the first-level extended control area The working mode information of the working mode used to transmit data;
使用Z-RNTI在除最后一级之外的每级扩展控制区域中传输该级扩展控制区域的下一级扩展控制区域对应的PDCCH数据，所述PDCCH数据中包含指示所述下一级扩展控制区域占用的资源的资源分配信息和下一级扩展控制区域中传输数据所用工作模式的工作模式信息；Use Z-RNTI to transmit the PDCCH data corresponding to the extended control area of the next level in the extended control area of each level except the last level, and the PDCCH data contains instructions indicating the extended control area of the next level The resource allocation information of the resources occupied by the area and the working mode information of the working mode used to transmit data in the next-level extended control area;
依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据。The PDCCH data of the eUE is transmitted by using the cell radio network temporary identifier C-RNTI of the eUE according to the mapping.
所述步骤S300包括：The step S300 includes:
eUE在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据；The eUE decodes the PDCCH data of the vUE according to the Z-RNTI in the search space of the control region of the subframe;
eUE依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过Z-RNTI解码扩展控制区域对应的PDCCH数据，通过eUE的C-RNTI检测PDCCH。According to the resource allocation information and the working mode information in the PDCCH data, the eUE decodes the PDCCH data corresponding to the extended control region through the Z-RNTI according to the working mode used in the extended control region in the search space of the extended control region, and passes the eUE The C-RNTI detects the PDCCH.
其中，所述eUE依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过所述eUE的C-RNTI检测PDCCH，通过Z-RNTI解码扩展控制区域对应的PDCCH数据包括：Wherein, according to the resource allocation information and the working mode information in the PDCCH data, the eUE detects the PDCCH through the C-RNTI of the eUE according to the working mode used in the extended control area in the search space of the extended control area, The PDCCH data corresponding to the extended control region decoded by Z-RNTI includes:
步骤S311，以vUE的PDCCH数据中的所述资源分配信息指示的第一级扩展控制区域为当前解码的扩展控制区域；Step S311, using the first-level extended control region indicated by the resource allocation information in the PDCCH data of the vUE as the currently decoded extended control region;
步骤S312，在当前解码的扩展控制区域的搜索空间内，按当前解码的扩展控制区域的工作模式，通过所述eUE的C-RNTI解码eUE的PDCCH数据，通过Z-RNTI解码下一级扩展控制区域对应的PDCCH数据；Step S312, in the search space of the currently decoded extended control area, according to the working mode of the currently decoded extended control area, decode the PDCCH data of the eUE through the C-RNTI of the eUE, and decode the next-level extended control data through the Z-RNTI PDCCH data corresponding to the area;
步骤S313，如果解码出eUE的PDCCH数据，则结束解码操作；否则，以Z-RNTI解码出的PDCCH数据中的资源分配信息指示的下一级扩展控制区域为当前解码的扩展控制区域重复执行步骤S312。Step S313, if the PDCCH data of the eUE is decoded, then end the decoding operation; otherwise, use the next-level extended control area indicated by the resource allocation information in the PDCCH data decoded by the Z-RNTI as the currently decoded extended control area to repeat the steps S312.
进一步地，在将eUE的实际支持工作模式降为传统工作模式时，按如下步骤进行操作。Further, when the actual supported working mode of the eUE is downgraded to the traditional working mode, the following steps are performed.
传统工作模式为能力最低级别的工作模式。The traditional work mode is the work mode with the lowest level of competence.
所述将eUE的PDCCH映射到扩展控制区域包括：The mapping of the PDCCH of the eUE to the extended control region includes:
将实际支持工作模式为传统工作模式的eUE的PDCCH映射到子帧的控制区域，将实际支持工作模式的能力高于传统工作模式的eUE的PDCCH映射到扩展控制区。Map the PDCCH of the eUE that actually supports the traditional working mode to the control region of the subframe, and map the PDCCH of the eUE that actually supports the working mode higher than the traditional working mode to the extended control region.
所述步骤S200还包括：The step S200 also includes:
基站将eUE的实际支持工作模式通知给eUE。The base station notifies the eUE of the actual supported working mode of the eUE.
所述依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据包括：The transmitting the PDCCH data of the eUE by using the cell radio network temporary identifier C-RNTI of the eUE according to the mapping includes:
基站依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输在子帧的控制区域传输实际支持工作模式为传统工作模式的eUE的PDCCH数据，在扩展控制区域传输实际支持工作模式的能力高于传统工作模式的eUE的PDCCH数据。The base station uses the cell radio network temporary identifier C-RNTI of the eUE according to the mapping to transmit the PDCCH data of the eUE whose actual supported working mode is the traditional working mode in the control area of the subframe, and has a high ability to transmit the actually supported working mode in the extended control area PDCCH data of eUE in traditional working mode.
所述步骤S300包括：The step S300 includes:
eUE在实际支持工作模式为传统工作模式时，在子帧的控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH；eUE在实际支持工作模式的能力高于传统工作模式时，在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH。When the eUE actually supports the traditional working mode, it detects the PDCCH through the C-RNTI of the eUE in the search space of the control region of the subframe; when the eUE actually supports the working mode higher than the traditional working mode, it The search space of the control region of the subframe decodes the PDCCH data of the vUE according to the Z-RNTI, and according to the resource allocation information and the working mode information in the PDCCH data, the The C-RNTI of the eUE detects the PDCCH.
参见图10，是本发明链式扩展控制区域中传输控制消息的示意图。Referring to FIG. 10 , it is a schematic diagram of transmission control messages in the chain extended control area of the present invention.
以表8为例，基站通过终端上报的支持的传输方式，统计出20个类型1终端，40个类型2终端，7个类型4终端。类型1终端为普通终端tUE，在子帧的控制区域的搜索空间检测PDCCH。类型2终端，为eUE，在扩展控制区域1的搜索空间中检测PDCCH，最大时域长度到4个符号。类型4终端，为eUE，在扩展控制区域1的搜索空间检测出扩展控制区域2对应的PDCCH数据，按该PDCCH数据中指示，在扩展控制区域2中检测该eUE的PDCCH数据。其中，在扩展控制区域2上可以采用基于嵌入式参考符号的高容量传输技术。Taking Table 8 as an example, the base station counts 20 Type 1 terminals, 40 Type 2 terminals, and 7 Type 4 terminals according to the supported transmission modes reported by the terminals. The type 1 terminal is an ordinary terminal tUE, and detects the PDCCH in the search space of the control region of the subframe. A type 2 terminal, which is an eUE, detects the PDCCH in the search space of the extended control area 1, and the maximum time domain length is 4 symbols. A type 4 terminal, which is an eUE, detects the PDCCH data corresponding to the extended control area 2 in the search space of the extended control area 1, and detects the PDCCH data of the eUE in the extended control area 2 according to the indication in the PDCCH data. Among them, the high-capacity transmission technology based on embedded reference symbols can be used in the extended control area 2 .
此时接入一个新的类型3终端，如表8所示，其处理能力可以支持FDM方式，具有能够检测扩展控制区域1和扩展控制区域2的搜索空间，但是不支持类型4的终端的高容量传输技术。此时基站根据小区中的终端的情况，从总体上判断不适宜单独为它开辟新的扩展控制区域，因而，通知类型3终端降低能力，按类型1终端支持的传输方式进行解码，也就是采用较低容量的传输技术。这样传输的扩展区域传输方式不变，相当于增加了一个tUE，而即使扩展区域1/2中出现了低的传输方式，终端3也不会去检测。At this time, a new type 3 terminal is connected, as shown in Table 8, its processing capability can support the FDM method, and it has a search space capable of detecting the extended control area 1 and the extended control area 2, but it does not support the high performance of type 4 terminals. Capacity transfer technology. At this time, based on the conditions of the terminals in the cell, the base station generally judges that it is not suitable to open up a new extended control area for it alone. Therefore, the base station notifies the type 3 terminal to reduce its capability, and decodes according to the transmission mode supported by the type 1 terminal. Lower capacity transmission technology. In this way, the transmission mode of the extended area remains unchanged, which is equivalent to adding a tUE, and even if a low transmission mode appears in the extended area 1/2, the terminal 3 will not detect it.
一种基站向终端传输控制信息的系统如下所述。A system for a base station to transmit control information to a terminal is as follows.
终端，用于向基站报告所述终端的允许工作模式，接收PDCCH数据获得控制信息。The terminal is configured to report the allowed working mode of the terminal to the base station, and receive PDCCH data to obtain control information.
基站，用于接收终端的报告，根据接收的各个终端的报告确定每个终端的实际支持工作模式，根据限制条件调度资源传输终端的物理层下行控制信道PDCCH数据，所述限制条件包括终端的实际支持工作模式。The base station is used to receive reports from the terminals, determine the actual supported working mode of each terminal according to the received reports of each terminal, and schedule resources to transmit the physical layer downlink control channel PDCCH data of the terminals according to the constraints, the constraints include the actual conditions of the terminals Support working mode.
进一步地，所述终端用于向基站报告所述终端的允许的最高能力工作模式；Further, the terminal is used to report to the base station the allowed highest capability working mode of the terminal;
所述基站在根据接收的各个终端的报告确定每个终端的实际支持工作模式时用于根据接收的各个终端的报告统计基站对应小区中终端的工作模式的类型分布；通过将终端的实际支持工作模式降低为最高能力工作模式之下的工作模式调整基站对应小区中终端的工作模式的类型分布。When the base station determines the actual supported operating mode of each terminal according to the received reports of each terminal, it is used to count the type distribution of the operating modes of the terminals in the cell corresponding to the base station according to the received reports of each terminal; The mode reduction adjusts the type distribution of the terminal's working modes in the corresponding cell of the base station to the working mode under the highest capability working mode.
进一步地，基站用于将终端的实际支持工作模式通知给终端；Further, the base station is used to notify the terminal of the actual supported working mode of the terminal;
所述终端用于以实际支持工作模式为限制接收PDCCH数据，获得控制信息。The terminal is used for receiving PDCCH data and obtaining control information by restricting the actually supported working mode.
进一步地，所述终端包括支持扩展的终端eUE；Further, the terminal includes a terminal eUE supporting extension;
配置包括：为虚拟终端vUE分配无线网络临时标识RNTI，所述分配的RNTI为扩展无线网络临时标识Z-RNTI，eUE中具有所述Z-RNTI；The configuration includes: assigning a wireless network temporary identifier RNTI to the virtual terminal vUE, the assigned RNTI is an extended wireless network temporary identifier Z-RNTI, and the eUE has the Z-RNTI;
所述基站包括：The base station includes:
分配模块，用于从子帧的数据区域的空闲资源中调取资源分配给扩展控制区域；An allocation module, configured to allocate resources from idle resources in the data area of the subframe to the extended control area;
映射模块，用于将vUE的PDCCH映射到子帧的控制区域，将eUE的PDCCH映射到扩展控制区域，根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式；The mapping module is used to map the PDCCH of the vUE to the control area of the subframe, map the PDCCH of the eUE to the extended control area, and determine the work used for transmitting data in the extended control area according to the actual supported working mode of the eUE mapped in the extended control area model;
传输模块，用于依据映射使用Z-RNTI在所述子帧的控制区域传输vUE的PDCCH数据，所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息，依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据；The transmission module is configured to use the Z-RNTI to transmit the PDCCH data of the vUE in the control region of the subframe according to the mapping, and the PDCCH data of the vUE includes resource allocation information indicating resources occupied by the extended control region and transmission in the extended control region According to the working mode information of the working mode used by the data, the cell radio network temporary identifier C-RNTI of the eUE is used to transmit the PDCCH data of the eUE according to the mapping;
所述eUE用于在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式通过eUE的C-RNTI检测PDCCH。The eUE is used to decode the PDCCH data of the vUE according to the Z-RNTI in the search space of the control area of the subframe, and according to the resource allocation information and the working mode information in the PDCCH data, in the extended control area The PDCCH is detected through the C-RNTI of the eUE according to the working mode used in the extended control region in the search space.
其中，所述扩展控制区域为多个扩展控制区域；Wherein, the extended control area is a plurality of extended control areas;
所述映射模块在将eUE的PDCCH映射到扩展控制区域时用于选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域；When the mapping module maps the PDCCH of the eUE to the extended control region, the ability to select the working mode used for transmitting data is not higher than that of the eUE. An extended control region corresponding to the working mode actually supported by the eUE corresponds to the eUE, and maps the eUE to the corresponding extended control region. control area;
所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息进一步为所述vUE的PDCCH数据中包含指示所述多个扩展控制区域占用的资源的资源分配信息，以及多个扩展控制区域中传输数据所用工作模式的工作模式信息；The PDCCH data of the vUE includes resource allocation information indicating the resources occupied by the extended control region and the working mode information of the working mode used to transmit data in the extended control region. Further, the PDCCH data of the vUE includes information indicating the plurality of extended control Resource allocation information of the resources occupied by the area, and working mode information of the working mode used to transmit data in multiple extended control areas;
所述传输模块在依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据时用于依据映射按扩展控制区域中传输数据所用的工作模式，使用所述eUE的小区无线网络临时标识C-RNTI在扩展控制区域传输所述eUE的PDCCH数据。The transmission module uses the cell radio network temporary identifier C-RNTI of the eUE to transmit the PDCCH data of the eUE according to the mapping, and uses the cell of the eUE according to the working mode used for data transmission in the extended control area according to the mapping The radio network temporary identifier C-RNTI transmits the PDCCH data of the eUE in the extended control area.
其中，所述扩展控制区域为多级链式扩展控制区域；Wherein, the extended control area is a multi-level chained extended control area;
所述映射模块在将eUE的PDCCH映射到扩展控制区域时用于选择传输数据所用工作模式的能力不高于所述eUE实际支持工作模式的一个扩展控制区域与eUE对应，将eUE映射到对应扩展控制区域，所述eUE对应的扩展控制区域各个上级扩展控制区域所用工作模式的能力不高于所述eUE实际支持工作模式；When the mapping module maps the PDCCH of the eUE to the extended control region, the ability to select the working mode used for transmitting data is not higher than that of the eUE. An extended control region corresponding to the working mode actually supported by the eUE corresponds to the eUE, and maps the eUE to the corresponding extended control region. In the control area, the capability of the working mode used by each upper-level extended control area of the extended control area corresponding to the eUE is not higher than the actual supported working mode of the eUE;
所述映射模块还用于将除第一级之外的每级扩展控制区域对应的PDCCH映射到链式中该级扩展控制区域的上一级扩展控制区域；The mapping module is also used to map the PDCCH corresponding to the extended control area of each level except the first level to the extended control area of the upper level of the extended control area of the level in the chain;
所述vUE的PDCCH数据中包含指示扩展控制区域占用的资源的资源分配信息和扩展控制区域中传输数据所用工作模式的工作模式信息进一步为所述vUE的PDCCH数据中包含指示第一级扩展控制区域占用的资源的资源分配信息和第一级扩展控制区域中传输数据所用工作模式的工作模式信息；The PDCCH data of the vUE includes resource allocation information indicating the resources occupied by the extended control region and the working mode information of the working mode used to transmit data in the extended control region. The PDCCH data of the vUE further includes information indicating the first-level extended control region Resource allocation information of occupied resources and working mode information of the working mode used to transmit data in the first-level extended control area;
所述传输模块还用于：使用Z-RNTI在除最后一级之外的每级扩展控制区域中传输该级扩展控制区域的下一级扩展控制区域对应的PDCCH数据，所述PDCCH数据中包含指示所述下一级扩展控制区域占用的资源的资源分配信息和下一级扩展控制区域中传输数据所用工作模式的工作模式信息；The transmission module is also used to: use the Z-RNTI to transmit the PDCCH data corresponding to the extended control area of the next level in the extended control area of each level except the last level in the extended control area of the level, and the PDCCH data includes Indicating the resource allocation information of resources occupied by the next-level extended control area and the working mode information of the working mode used to transmit data in the next-level extended control area;
所述eUE还用于依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过Z-RNTI解码扩展控制区域对应的PDCCH数据。The eUE is further configured to, according to the resource allocation information and the working mode information in the PDCCH data, in the search space of the extended control region according to the working mode used by the extended control region, decode the corresponding information of the extended control region through the Z-RNTI PDCCH data.
其中，所述eUE在依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内按扩展控制区域所用的工作模式，通过所述eUE的C-RNTI检测PDCCH，通过Z-RNTI解码扩展控制区域对应的PDCCH数据时用于Wherein, the eUE detects the PDCCH through the C-RNTI of the eUE according to the working mode used in the extended control area in the search space of the extended control area according to the resource allocation information and the operating mode information in the PDCCH data , used when decoding the PDCCH data corresponding to the extended control region through the Z-RNTI
以vUE的PDCCH数据中的所述资源分配信息指示的第一级扩展控制区域为当前解码的扩展控制区域；在当前解码的扩展控制区域的搜索空间内，按当前解码的扩展控制区域的工作模式，通过所述eUE的C-RNTI解码eUE的PDCCH数据，通过Z-RNTI解码下一级扩展控制区域对应的PDCCH数据；如果解码出eUE的PDCCH数据，则结束解码操作；否则，以Z-RNTI解码出的PDCCH数据中的资源分配信息指示的下一级扩展控制区域为当前解码的扩展控制区域重复执行解码操作。The first-level extended control region indicated by the resource allocation information in the PDCCH data of the vUE is the currently decoded extended control region; in the search space of the currently decoded extended control region, according to the working mode of the currently decoded extended control region , decode the PDCCH data of the eUE through the C-RNTI of the eUE, and decode the PDCCH data corresponding to the next-level extended control region through the Z-RNTI; if the PDCCH data of the eUE is decoded, the decoding operation is ended; otherwise, the Z-RNTI The next-level extended control region indicated by the resource allocation information in the decoded PDCCH data repeats the decoding operation for the currently decoded extended control region.
其中，所述映射模块在将eUE的PDCCH映射到扩展控制区域时用于将实际支持工作模式为传统工作模式的eUE的PDCCH映射到子帧的控制区域，将实际支持工作模式的能力高于传统工作模式的eUE的PDCCH映射到扩展控制区；Wherein, when the mapping module maps the PDCCH of the eUE to the extended control region, it is used to map the PDCCH of the eUE that actually supports the traditional working mode to the control region of the subframe, and the capability of actually supporting the working mode is higher than that of the traditional The PDCCH of the eUE in the working mode is mapped to the extended control region;
所述传输模块还用于将eUE的实际支持工作模式通知给eUE；The transmission module is also used to notify the eUE of the actual supported working mode of the eUE;
所述传输模块在依据映射使用所述eUE的小区无线网络临时标识C-RNTI传输所述eUE的PDCCH数据时用于依据映射使用所述eUE的小区无线网络临时标识C-RNTI在子帧的控制区域传输实际支持工作模式为传统工作模式的eUE的PDCCH数据，在扩展控制区域传输实际支持工作模式的能力高于传统工作模式的eUE的PDCCH数据；When the transmission module uses the cell radio network temporary identifier C-RNTI of the eUE according to the mapping to transmit the PDCCH data of the eUE, it is used to control the subframe using the cell radio network temporary identifier C-RNTI of the eUE according to the mapping The region transmits the PDCCH data of the eUE whose working mode actually supports the traditional working mode, and transmits the PDCCH data of the eUE whose working mode actually supports the traditional working mode in the extended control area;
所述eUE用于在实际支持工作模式为传统工作模式时，在子帧的控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH；eUE在实际支持工作模式的能力高于传统工作模式时，在所述子帧的控制区域的搜索空间按Z-RNTI解码出所述vUE的PDCCH数据，依据PDCCH数据中的所述资源分配信息和所述工作模式信息，在扩展控制区域的搜索空间内通过所述eUE的C-RNTI检测PDCCH。The eUE is used to detect the PDCCH through the C-RNTI of the eUE in the search space of the control area of the subframe when the actual supported working mode is the traditional working mode; the capability of the eUE in actually supporting the working mode is higher than that of the traditional working mode , decode the PDCCH data of the vUE according to the Z-RNTI in the search space of the control region of the subframe, and expand the search space of the control region according to the resource allocation information and the working mode information in the PDCCH data The PDCCH is detected through the C-RNTI of the eUE.
其中，所述映射模块在根据所述扩展控制区域中映射的eUE实际支持工作模式确定扩展控制区域中传输数据所用工作模式时用于选择所述扩展控制区域中映射的eUE实际支持工作模式的交集中一种工作模式为扩展控制区域中传输数据所用工作模式。Wherein, when the mapping module determines the working mode used for transmitting data in the extended control area according to the eUE actually supported working mode mapped in the extended control area, it is used to select the alternate mode of the eUE actually supported working mode mapped in the extended control area. Concentrate one working mode as the working mode used to transmit data in the extended control area.
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本发明的保护范围内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018344.6ACN102595604B (en) | 2012-01-18 | 2012-01-18 | Method and system for transmitting control information from base station to terminal |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018344.6ACN102595604B (en) | 2012-01-18 | 2012-01-18 | Method and system for transmitting control information from base station to terminal |
| Publication Number | Publication Date |
|---|---|
| CN102595604A CN102595604A (en) | 2012-07-18 |
| CN102595604Btrue CN102595604B (en) | 2015-01-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210018344.6AExpired - Fee RelatedCN102595604B (en) | 2012-01-18 | 2012-01-18 | Method and system for transmitting control information from base station to terminal |
| Country | Link |
|---|---|
| CN (1) | CN102595604B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150181574A1 (en)* | 2012-08-11 | 2015-06-25 | Lg Electronics Inc. | Method and device for receiving down-link control channel in wireless communication system |
| CN105025574B (en) | 2014-04-16 | 2019-07-02 | 中兴通讯股份有限公司 | A kind of data transmission method and device |
| WO2019047095A1 (en)* | 2017-09-07 | 2019-03-14 | 北京小米移动软件有限公司 | Method and device for detecting scheduling signaling, user equipment, and base station |
| WO2019237302A1 (en)* | 2018-06-14 | 2019-12-19 | 北京小米移动软件有限公司 | Information transmission method, device and system and storage medium |
| CN110753341A (en) | 2018-07-23 | 2020-02-04 | 华为技术有限公司 | Resource allocation method and device |
| US11166238B2 (en)* | 2018-09-13 | 2021-11-02 | Qualcomm Incorporated | Methods and apparatus for supporting multiple power and spectrum efficient modes for power saving |
| US20230217460A1 (en)* | 2020-06-19 | 2023-07-06 | Lenovo (Beijing) Limited | Apparatus and methods of span level tdm pdcch transmission |
| WO2022016469A1 (en)* | 2020-07-23 | 2022-01-27 | 北京小米移动软件有限公司 | Random access parameter processing method and apparatus, and storage medium |
| CN114071644B (en)* | 2020-07-31 | 2023-06-16 | 维沃移动通信有限公司 | Access control method, device and communication equipment |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1703861A (en)* | 2002-09-30 | 2005-11-30 | 阿雷伊通讯有限公司 | Messaging for transmission link adaptation |
| CN101932024A (en)* | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| CN102195705A (en)* | 2010-03-19 | 2011-09-21 | 上海华为技术有限公司 | Downlink baseband data transmitting method and base station |
| EP2369875A1 (en)* | 2008-12-23 | 2011-09-28 | Mitsubishi Electric Corporation | Mobile communication system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1703861A (en)* | 2002-09-30 | 2005-11-30 | 阿雷伊通讯有限公司 | Messaging for transmission link adaptation |
| EP2369875A1 (en)* | 2008-12-23 | 2011-09-28 | Mitsubishi Electric Corporation | Mobile communication system |
| CN101932024A (en)* | 2009-06-24 | 2010-12-29 | 华为技术有限公司 | Downlink control information transmitting method and device |
| CN102195705A (en)* | 2010-03-19 | 2011-09-21 | 上海华为技术有限公司 | Downlink baseband data transmitting method and base station |
| Publication number | Publication date |
|---|---|
| CN102595604A (en) | 2012-07-18 |
| Publication | Publication Date | Title |
|---|---|---|
| JP7711972B2 (en) | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS USING SAME - Patent application | |
| US12114308B2 (en) | System and method for common control channels in a communications system | |
| US10659939B2 (en) | Telecommunications apparatus and methods | |
| US10687325B2 (en) | System and method for delay scheduling | |
| CN102595604B (en) | Method and system for transmitting control information from base station to terminal | |
| CN116743321B (en) | Method, device and system for downlink data reception and HARQ-ACK transmission in wireless communication system | |
| US11310779B2 (en) | Method and apparatus for transmitting/receiving control information in wireless communication system | |
| EP2903334B1 (en) | Information transmission method and device | |
| KR102808681B1 (en) | Method, device and system for transmitting physical uplink control channel in wireless communication system | |
| US9276710B2 (en) | Method and apparatus for resource allocation with carrier extension | |
| US8711789B2 (en) | Method and apparatus for providing contention-based resource zones in a wireless network | |
| TWI665926B (en) | Telecommunications apparatus and methods | |
| EP3100550B1 (en) | Identification of downlink messages using repeated transmission | |
| CN107294897B (en) | Downlink information sending and receiving method and device | |
| CN102395204B (en) | Method and system for increasing quantity of physical layer control channel resource in mobile communication | |
| CN111510954A (en) | Method and device for determining scheduling timing interval | |
| CN106550459A (en) | A kind of descending control method and device | |
| CN104012121A (en) | Systems and methods for data channel transmission and reception | |
| EP4422316A1 (en) | Communication method and apparatus | |
| CN102595605B (en) | Method and system for controlling number of channel resources by using virtual terminal expanded physical layer | |
| WO2017107686A1 (en) | Method and apparatus for determining search space in narrowband system |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | Effective date of registration:20170830 Address after:100070, No. 188, building 25, No. eighteen, South Fourth Ring Road, Fengtai District, Beijing, 1, 101 Patentee after:Beijing Haiyun Technology Co.,Ltd. Address before:510663, No. 3, color road, Science City, Guangzhou Development Zone, Guangdong Patentee before:NEW POSTCOM EQUIPMENT Co.,Ltd. | |
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20150128 | |
| CF01 | Termination of patent right due to non-payment of annual fee |