WO2019174054A1

WO2019174054A1 - Method for determining first multi-antenna transmission mode, and terminal device and network device

Info

Publication number: WO2019174054A1
Application number: PCT/CN2018/079356
Authority: WO
Inventors: 唐海
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2019-09-19
Also published as: CN110710268B; CN110710268A

Abstract

Disclosed are a method for determining a first multi-antenna transmission mode, and a terminal device and a network device. The method is applied to an Internet of vehicles system, and comprises: a first terminal device receiving first information sent by a second terminal device; and the first terminal device determining, according to the first information, a first multi-antenna transmission mode used by a data channel sent by the second terminal device. The method, terminal device and network device in the embodiments of the present application help to improve the performance of system transmission.

Description

确定第一多天线发送模式的方法、终端设备和网络设备Method, terminal device and network device for determining a first multi-antenna transmission mode

技术领域Technical field

本申请实施例涉及通信领域，并且更具体地，涉及一种确定第一多天线发送模式的方法、终端设备和网络设备。The embodiments of the present application relate to the field of communications, and, more particularly, to a method, a terminal device, and a network device for determining a first multi-antenna transmission mode.

背景技术Background technique

车联网或称车到设备(Vehicle to Everything，V2X)通信***是基于车辆到车辆(Device to Device，D2D)通信的一种侧行链路(Sidelink，SL)传输技术，与传统的长期演进(Long Term Evolution，LTE)***中通过基站接收或者发送数据的方式不同，车联网***采用终端到终端直接通信的方式，因此具有更高的频谱效率和更低的传输时延。Vehicle networking or Vehicle to Everything (V2X) communication system is a sidelink (SL) transmission technology based on Device to Device (D2D) communication, with traditional long-term evolution ( In the Long Term Evolution (LTE) system, the way in which the base station receives or transmits data is different. The vehicle networking system adopts a terminal-to-terminal direct communication method, and thus has higher spectrum efficiency and lower transmission delay.

在LTE***中，网络侧引入了多个发送天线，因此，数据信道可以支持不同的多天线发送模式。在LTE***中定义了多种多天线发送模式，如单天线端口发送、发送分集、空间复用以及波束成形等。在车联网***中，由于车辆的体积很大，具有安装和使用多天线的先天条件，因此车联网***的数据信道也可以支持多种多天线发送模式。那么终端设备采用如何获知进行数据发送的多天线发送模式，以及接收端如何获知发送端采用的多天线发送模式是需要解决的问题。In the LTE system, multiple transmit antennas are introduced on the network side, and therefore, the data channel can support different multi-antenna transmission modes. A variety of multi-antenna transmission modes are defined in the LTE system, such as single antenna port transmission, transmit diversity, spatial multiplexing, and beamforming. In the Internet of Vehicles system, the vehicle's data channel can also support multiple multi-antenna transmission modes due to the large size of the vehicle and the innate conditions for installing and using multiple antennas. Then, the terminal device adopts a multi-antenna transmission mode in which data transmission is learned, and how the receiving end knows the multi-antenna transmission mode adopted by the transmitting end is a problem to be solved.

发明内容Summary of the invention

有鉴于此，本申请实施例提供了一种确定第一多天线发送模式的方法、终端设备和网络设备，有利于提高***传输性能。In view of this, the embodiments of the present application provide a method, a terminal device, and a network device for determining a first multi-antenna transmission mode, which are beneficial to improving system transmission performance.

第一方面，提供了一种确定第一多天线发送模式的方法，该方法应用于车联网***中，该包括：第一终端设备接收第二终端设备发送的第一信息；该第一终端设备根据该第一信息，确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。The first aspect provides a method for determining a first multi-antenna transmission mode, where the method is applied to a car network system, the method includes: the first terminal device receives first information sent by the second terminal device; and the first terminal device Determining, according to the first information, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device.

在一种可能的实现方式中，该第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。In a possible implementation manner, the first multi-antenna transmission mode is one of single antenna port transmission, transmit diversity, spatial multiplexing, and beamforming.

在一种可能的实现方式中，该第一信息为侧行链路控制信息SCI。In a possible implementation manner, the first information is sidelink control information SCI.

在一种可能的实现方式中，该第一终端设备根据该第一信息，确定该第二终端设备发送的数据信道所采用的第一多天线发送模式，包括：该第一终端设备根据该SCI中的比特位，确定该第一多天线发送模式。In a possible implementation manner, the first terminal device determines, according to the first information, a first multi-antenna transmission mode used by the data channel sent by the second terminal device, including: the first terminal device according to the SCI The bit in the medium determines the first multi-antenna transmission mode.

在一种可能的实现方式中，该第一终端设备根据该第一信息，确定该第二终端设备发送的数据信道所采用的第一多天线发送模式，包括：该第一终端设备根据该SCI所采用的掩码序列，确定该第一多天线发送模式。In a possible implementation manner, the first terminal device determines, according to the first information, a first multi-antenna transmission mode used by the data channel sent by the second terminal device, including: the first terminal device according to the SCI The mask sequence employed determines the first multi-antenna transmission mode.

第二方面，提供了一种确定第一多天线发送模式的方法，该方法应用于车联网***中，该方法包括：第二终端设备向第一终端设备发送第一信息，该第一信息用于该第一终端设备确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。A second aspect provides a method for determining a first multi-antenna transmission mode, where the method is applied to a car network system, the method comprising: the second terminal device transmitting the first information to the first terminal device, where the first information is used by the first terminal device And determining, by the first terminal device, a first multi-antenna transmission mode used by the data channel sent by the second terminal device.

在一种可能的实现方式中，该第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。In a possible implementation manner, the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmit diversity, spatial multiplexing, and beamforming.

在一种可能的实现方式中，该SCI中的比特位用于指示该第一多天线发送模式。In a possible implementation, the bit in the SCI is used to indicate the first multi-antenna transmission mode.

在一种可能的实现方式中，该SCI所采用的掩码序列用于指示该第一多天线发送模式。In a possible implementation manner, the mask sequence used by the SCI is used to indicate the first multi-antenna transmission mode.

可选地，还可以采用SCI的其他特性隐式指示第一多天线发送模式，例如，可以是 SCI的格式，也可以是承载SCI的PSCCH所用的时频资源等。Optionally, the first multi-antenna transmission mode may be implicitly indicated by using other characteristics of the SCI, for example, the format of the SCI, or the time-frequency resource used by the PSCCH carrying the SCI.

可选地，第一终端设备接收第二终端设备的PSCCH，所述PSCCH指示第二终端设备的数据信道PSSCH的传输资源，所述第一终端设备根据所述第二终端设备的数据信道PSSCH所在的资源池和第一对应关系确定第二终端设备的数据信道使用的第一多天线发送模式。其中，所述第一对应关系可以为资源池信息和多天线发送模式之间的对应关系。Optionally, the first terminal device receives the PSCCH of the second terminal device, where the PSCCH indicates the transmission resource of the data channel PSSCH of the second terminal device, where the first terminal device is located according to the data channel PSSCH of the second terminal device The resource pool and the first correspondence determine a first multi-antenna transmission mode used by the data channel of the second terminal device. The first correspondence may be a correspondence between resource pool information and a multi-antenna transmission mode.

第三方面，提供了一种确定第一多天线发送模式的方法，该方法应用于车联网***中，该方法包括：第二终端设备接收网络设备发送的第一信息；该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式。A third aspect provides a method for determining a first multi-antenna transmission mode, where the method is applied to a car network system, the method comprising: receiving, by a second terminal device, first information sent by a network device; The first information determines a first multi-antenna transmission mode of the data channel that the second terminal device sends to the first terminal device.

在一种可能的实现方式中，该第一信息为下行控制信息DCI或无线资源控制RRC信令。In a possible implementation manner, the first information is downlink control information DCI or radio resource control RRC signaling.

在一种可能的实现方式中，该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式，包括：该第二终端设备根据该第一信息中的比特位，确定该第一多天线发送模式。In a possible implementation manner, the second terminal device determines, according to the first information, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device, where the second terminal device includes: the second terminal device The first multi-antenna transmission mode is determined according to a bit in the first information.

在一种可能的实现方式中，该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式，包括：该第二终端设备根据该DCI所采用的掩码序列或扰码序列，确定该第一多天线发送模式。In a possible implementation manner, the second terminal device determines, according to the first information, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device, where the second terminal device includes: the second terminal device The first multi-antenna transmission mode is determined according to a mask sequence or a scrambling sequence used by the DCI.

可选地，网络设备也可以采用DCI的其他特性隐式指示第一多天线发送模式，例如，可以是DCI的格式，也可以是承载DCI的物理下行控制信道(Physical Downlink Control Channel，PDCCH)所用的时频资源等。Optionally, the network device may also use the other features of the DCI to implicitly indicate the first multi-antenna transmission mode, for example, the format of the DCI or the physical downlink control channel (PDCCH) carrying the DCI. Time-frequency resources, etc.

可选地，第二终端设备接收网络设备发送的DCI，所述DCI指示第二终端设备的数据信道PSSCH的传输资源，所述第二终端设备根据数据信道PSSCH所在的资源池和第二对应关系确定数据信道使用的第一多天线发送模式。其中，所述第二对应关系可以为资源池信息和多天线发送模式之间的对应关系。Optionally, the second terminal device receives the DCI sent by the network device, where the DCI indicates the transmission resource of the data channel PSSCH of the second terminal device, and the second terminal device according to the resource pool where the data channel PSSCH is located and the second correspondence relationship The first multi-antenna transmission mode used by the data channel is determined. The second correspondence may be a correspondence between resource pool information and a multi-antenna transmission mode.

在一种可能的实现方式中，该第一信息用于指示终端设备的状态与多天线发送模式的映射关系，该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式，包括：该第二终端设备根据该映射关系，确定该第一多天线发送模式。In a possible implementation, the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode, and the second terminal device determines, according to the first information, the second terminal device to the first terminal. The first multi-antenna transmission mode adopted by the data channel sent by the device includes: determining, by the second terminal device, the first multi-antenna transmission mode according to the mapping relationship.

在一种可能的实现方式中，该映射关系为终端设备的速度与多天线发送模式的对应关系、终端设备的天线数目与多天线发送模式的对应关系、终端设备的同步源类型与多天线发送模式的对应关系、终端设备的业务类型与多天线发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与发送模式的对应关系中的至少一种。In a possible implementation manner, the mapping relationship is a correspondence between a speed of the terminal device and a multi-antenna transmission mode, a correspondence between a number of antennas of the terminal device and a multi-antenna transmission mode, a synchronization source type of the terminal device, and multiple antenna transmission. At least one of a correspondence of a mode, a correspondence between a service type of the terminal device and a multi-antenna transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a transmission mode.

第四方面，提供了一种确定第一多天线发送模式的方法，该方法应用于车联网***中，该方法包括：网络设备向第二终端设备发送第一信息，该第一信息用于该第二终端设备确定该第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式。A fourth aspect provides a method for determining a first multi-antenna transmission mode, where the method is applied to a car network system, the method comprising: the network device transmitting first information to the second terminal device, where the first information is used for the The second terminal device determines a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device to the first terminal device.

在一种可能的实现方式中，该第一信息中的比特位用于指示该第一多天线发送模式。In a possible implementation, the bit in the first information is used to indicate the first multi-antenna transmission mode.

在一种可能的实现方式中，该DCI所采用的掩码序列或扰码序列用于指示该第一多天线发送模式。In a possible implementation, the mask sequence or scrambling sequence used by the DCI is used to indicate the first multi-antenna transmission mode.

在一种可能的实现方式中，该第一信息用于指示终端设备的状态与多天线发送模式的映射关系。In a possible implementation manner, the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode.

在一种可能的实现方式中，该映射关系为终端设备的速度与发送模式的对应关系，终端设备的天线数目与发送模式的对应关系、终端设备的同步源类型与发送模式的对应关系、终端设备的业务类型与发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与多天线发送模式的对应关系中的至少一种。In a possible implementation manner, the mapping relationship is a correspondence between a speed of the terminal device and a sending mode, a correspondence between a number of antennas of the terminal device and a sending mode, a correspondence between a synchronization source type of the terminal device and a sending mode, and a terminal. At least one of a correspondence between a service type of the device and a transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a multi-antenna transmission mode.

第五方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。In a fifth aspect, a terminal device is provided for performing the method of any of the first aspect or the first aspect of the first aspect. In particular, the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.

第六方面，提供了一种终端设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。In a sixth aspect, a terminal device is provided for performing the method in any of the above-mentioned second aspect or any possible implementation of the second aspect. In particular, the terminal device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.

第七方面，提供了一种终端设备，用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的单元。In a seventh aspect, a terminal device is provided for performing the method in any of the possible implementations of the third aspect or the third aspect above. In particular, the terminal device comprises means for performing the method in any of the possible implementations of the third aspect or the third aspect described above.

第八方面，提供了一种网络设备，用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的单元。In an eighth aspect, a network device is provided for performing the method of any of the above-described fourth or fourth possible implementations. In particular, the network device comprises means for performing the method of any of the above-described fourth or fourth aspects of the fourth aspect.

第九方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线***相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。In a ninth aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.

第十方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线***相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。In a tenth aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.

第十一方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线***相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。In an eleventh aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described third aspect or any of the possible implementations of the third aspect.

第十二方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线***相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。According to a twelfth aspect, a network device is provided, the network device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the possible implementations of the fourth aspect or the fourth aspect above.

第十三方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法，或者上述第三方面或第三方面的任意可能的实现方式中的方法，或者上述第四方面或第四方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述各方面所设计的程序。A thirteenth aspect, a computer storage medium for storing a method in performing the above first aspect or any possible implementation of the first aspect, or any possible implementation of the second aspect or the second aspect above The method of the method, or the method of any of the foregoing third aspect or any of the possible implementations of the third aspect, or the computer software instructions of the method of any of the foregoing fourth or fourth aspect of the fourth aspect, comprising A program designed to perform the above aspects.

第十四方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选的实现方式中的方法，或者上述第二方面或第二方面的任一可选的实现方式中的方法，或者上述第三方面或第三方面的任一可选的实现方式中的方法，或者上述第四方面或第四方面的任一可选的实现方式中的方法。A fourteenth aspect, a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of any of the above-described first aspect or any of the alternative implementations of the first aspect, or The method of any of the optional implementations of the second aspect or the second aspect, or the method of any one of the foregoing third or third aspect, or the fourth or fourth aspect An alternative implementation.

本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

附图说明DRAWINGS

图1示出了本申请实施例一个应用场景的示意图。FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

图2示出了本申请实施例另一个应用场景的示意图。FIG. 2 is a schematic diagram of another application scenario of an embodiment of the present application.

图3示出了本申请实施例的确定第一多天线发送模式的方法的示意性框图。FIG. 3 is a schematic block diagram of a method for determining a first multi-antenna transmission mode according to an embodiment of the present application.

图4示出了本申请实施例的确定第一多天线发送模式的另一方法的示意性框图。FIG. 4 is a schematic block diagram showing another method for determining a first multi-antenna transmission mode according to an embodiment of the present application.

图5示出了本申请实施例的确定第一多天线发送模式的再一方法的示意性框图。FIG. 5 is a schematic block diagram showing still another method for determining a first multi-antenna transmission mode according to an embodiment of the present application.

图6示出了本申请实施例的确定第一多天线发送模式的再一方法的示意性框图。FIG. 6 is a schematic block diagram showing still another method for determining a first multi-antenna transmission mode according to an embodiment of the present application.

图7示出了本申请实施例的终端设备的示意性框图。FIG. 7 is a schematic block diagram of a terminal device of an embodiment of the present application.

图8示出了本申请实施例的终端设备的另一示意性框图。FIG. 8 is another schematic block diagram of a terminal device according to an embodiment of the present application.

图9示出了本申请实施例的终端设备的再一示意性框图。FIG. 9 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

图10示出了本申请实施例的网络设备的示意性框图。FIG. 10 shows a schematic block diagram of a network device of an embodiment of the present application.

图11示出了本申请实施例的终端设备的再一示意性框图。FIG. 11 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

图12示出了本申请实施例的终端设备的再一示意性框图。FIG. 12 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

图13示出了本申请实施例的终端设备的再一示意性框图。FIG. 13 is still another schematic block diagram of a terminal device according to an embodiment of the present application.

图14示出了本申请实施例的网络设备的另一示意性框图。FIG. 14 shows another schematic block diagram of a network device of an embodiment of the present application.

具体实施方式detailed description

下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.

应理解，本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile communication，GSM)***、码分多址(Code Division Multiple Access，CDMA)***、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)***、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进LTE***、LTE频分双工(Frequency Division Duplex，FDD)***、LTE时分双工(Time Division Duplex，TDD)、通用移动通信***(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信***、新无线(New Radio，NR)或未来的5G***等。It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G System, etc.

特别地，本申请实施例的技术方案可以应用于各种基于非正交多址接入技术的通信***，例如稀疏码多址接入(Sparse Code Multiple Access，SCMA)***、低密度签名(Low Density Signature，LDS)***等，当然SCMA***和LDS***在通信领域也可以被称为其他名称；进一步地，本申请实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输***，例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)、滤波器组多载波(Filter Bank Multi-Carrier，FBMC)、通用频分复用(Generalized Frequency Division Multiplexing，GFDM)、滤波正交频分复用(Filtered-OFDM，F-OFDM)***等。In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology. Transmission system, for example, Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC), General Frequency Division Multiplexing (Generalized Frequency Division Multiplexing (OFDM)) Frequency Division Multiplexing (GFDM), Filtered Orthogonal Frequency Division Multiplexing (Filtered-OFDM, F-OFDM) system, and the like.

本申请实施例中的终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。The terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device. Communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or in the future evolution of the Public Land Mobile Network (PLMN) The terminal device and the like are not limited in the embodiment of the present application.

本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA***中的基站(NodeB，NB)，还可以是LTE***中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。The network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system. And may be an evolved base station (eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be The embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.

图1和图2是本申请实施例的一个应用场景的示意图。图1示例性地示出了一个网络设备和两个终端设备，可选地，该无线通信***可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。此外，该无线通信***还可以包括移动管理实体(Mobile Management Entity，MME)、服务网关(Serving Gateway，S-GW)、分组数据网络网关(Packet Data Network Gateway，P-GW)等其他网络实体，但本申请实施例不限于此。FIG. 1 and FIG. 2 are schematic diagrams of an application scenario of an embodiment of the present application. FIG. 1 exemplarily shows one network device and two terminal devices. Alternatively, the wireless communication system may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The embodiment does not limit this. In addition, the wireless communication system may further include other network entities such as a Mobile Management Entity (MME), a Serving Gateway (S-GW), and a Packet Data Network Gateway (P-GW). However, embodiments of the present application are not limited thereto.

具体地，终端设备20和终端设备30可以以D2D通信模式进行通信，在进行D2D通信时，终端设备20和终端设备30通过D2D链路即侧行链路(Sidelink，SL)直接进行通信。例如图1或者图2所示，终端设备20和终端设备30通过侧行链路直接进行通信。在图1中，终端设备20和终端设备30之间通过侧行链路通信，其传输资源是由网络设备分配的；在图2中，终端设备20和终端设备30之间通过侧行链路通信，其传输资源是由终端设备自主选取的，不需要网络设备分配传输资源。Specifically, the terminal device 20 and the terminal device 30 can communicate in a D2D communication mode. When performing D2D communication, the terminal device 20 and the terminal device 30 directly communicate through a D2D link, ie, a side link (Sidelink, SL). For example, as shown in FIG. 1 or FIG. 2, the terminal device 20 and the terminal device 30 directly communicate via a side line. In FIG. 1, the terminal device 20 and the terminal device 30 communicate by a side line, and the transmission resources thereof are allocated by the network device; in FIG. 2, the terminal device 20 and the terminal device 30 pass the side link. Communication, whose transmission resources are independently selected by the terminal device, does not require the network device to allocate transmission resources.

D2D通信模式可以应用于车对车(Vehicle to Vehicle，V2V)通信或车辆到其他设备(Vehicle to Everything，V2X)通信。在V2X通信中，X可以泛指任何具有无线接收和发送能力的设备，例如但不限于慢速移动的无线装置，快速移动的车载设备，或是具有无线发射接收能力的网络控制节点等。应理解，本申请实施例主要应用于V2X通信的场景，但也可以应用于任意其它D2D通信场景，本申请实施例对此不做任何限定。The D2D communication mode can be applied to vehicle to vehicle (V2V) communication or vehicle to Everything (V2X) communication. In V2X communication, X can refer to any device with wireless receiving and transmitting capabilities, such as but not limited to slow moving wireless devices, fast moving in-vehicle devices, or network control nodes with wireless transmit and receive capabilities. It should be understood that the embodiment of the present application is mainly applied to the scenario of V2X communication, but can also be applied to any other D2D communication scenario, which is not limited in this embodiment of the present application.

在车联网***中，可以存在两种类型的终端设备，即具有侦听能力的终端设备例如车载终端(Vehicle User Equipment，VUE)或行人手持终端(Pedestrian User Equipment，PUE)，以及不具有侦听能力的终端设备例如PUE。VUE具有更高的处理能力，并且通常通过车内的蓄电池供电，而PUE处理能力较低，降低功耗也是PUE需要考虑的一个主要因素，因此在现有的车联网***中，VUE被认为具有完全的接收能力和侦听能力；而PUE被认为具有部分或者不具有接收和侦听能力。如果PUE具有部分侦听能力，其资源的选取可以采用和VUE类似的侦听方法，在可侦听的那部分资源上进行可用资源的选取；如果PUE不具有侦听能力，则PUE在资源池中随机选取传输资源。In a car network system, there may be two types of terminal devices, namely, a terminal device having a listening capability such as a Vehicle User Equipment (VUE) or a Pedestrian User Equipment (PUE), and no listening. Capable terminal equipment such as PUE. VUE has higher processing power and is usually powered by the battery in the car, while PUE has lower processing power, and reducing power consumption is also a major factor that PUE needs to consider. Therefore, in the existing car network system, VUE is considered to have Full reception and listening capabilities; while PUE is considered to have partial or no reception and listening capabilities. If the PUE has partial interception capability, the resource may be selected by using a similar listening method as the VUE, and the available resources may be selected on the part of the resources that can be intercepted; if the PUE does not have the listening capability, the PUE is in the resource pool. Randomly select transmission resources.

在3GPP协议的版本Release-14中，定义了两种传输模式，即传输模式3(mode 3)和传输模式4(mode 4)。使用传输模式3的终端设备的传输资源是由基站分配的，终端设备根据基站分配的资源在侧行链路上进行数据的发送；基站可以为终端设备分配单次传输的资源，也可以为终端设备分配半静态传输的资源。使用传输模式4的终端设备如果具备侦听能力，采用侦听(sensing)和预留(reservation)的方式传输数据，如果终端设备不具备侦听能力，则在资源池中随机选取传输资源。具备侦听能力的终端设备在资源池中通过侦听的方式获取可用的资源集合，终端设备从该集合中随机选取一个资源进行数据传输。由于车联网***中的业务具有周期性特征，因此终端设备通常采用半静态传输的方式，即终端设备选取一个传输资源后，就会在多个传输周期中持续的使用该资源，从而降低资源重选以及资源冲突的概率。终端设备会在本次传输的控制信息中携带预留下次传输资源的信息，从而使得其他终端设备可以通过检测该终端设备的控制信息判断这块资源是否被该终端设备预留和使用，达到降低资源冲突的目的。In Release-14 of the 3GPP protocol, two transmission modes are defined, namely, transmission mode 3 (mode 3) and transmission mode 4 (mode 4). The transmission resource of the terminal device using the transmission mode 3 is allocated by the base station, and the terminal device performs data transmission on the side line according to the resource allocated by the base station; the base station may allocate the resource for the single transmission to the terminal device, or may be the terminal. The device allocates resources that are semi-statically transmitted. If the terminal device using the transmission mode 4 has the capability of listening, the data is transmitted by means of sensing and reservation. If the terminal device does not have the capability of listening, the transmission resource is randomly selected in the resource pool. The terminal device with the interception capability acquires the available resource set by means of interception in the resource pool, and the terminal device randomly selects one resource from the set for data transmission. Since the service in the car network system has periodic characteristics, the terminal device usually adopts a semi-static transmission mode, that is, after the terminal device selects one transmission resource, the terminal device continuously uses the resource in multiple transmission cycles, thereby reducing the resource weight. The probability of selection and resource conflicts. The terminal device carries the information for reserving the next transmission resource in the control information of the current transmission, so that the other terminal device can determine whether the resource is reserved and used by the terminal device by detecting the control information of the terminal device. Reduce the purpose of resource conflicts.

在此情况下，本申请实施例提供了一种确定第一多天线发送模式的方法，该方法应用于车联网***中，使得发送端终端能够获得进行数据传输的多天线发送模式，以及接收端终端能够获知发送端终端进行数据传输的多天线发送模式。In this case, the embodiment of the present application provides a method for determining a first multi-antenna transmission mode, which is applied to a car network system, so that a transmitting terminal can obtain a multi-antenna transmission mode for performing data transmission, and a receiving end. The terminal can learn the multi-antenna transmission mode in which the transmitting terminal performs data transmission.

目前在LTE中主要定义了四种多天线发送模式，可以包括单天线发送、发送分集、波束成形以及空间复用。其中，发送分集可以包括循环延迟分集，空时分组码(Space Time Block Code，STBC)和空频分组码(Space Frequency Block Code，SFBC)等。空间复用可以包括基于预编码的空分复用等，也就是说，LTE中定义了四个大类，在每个大类下又包括了不同的发送模式。Currently, four multi-antenna transmission modes are mainly defined in LTE, and may include single antenna transmission, transmission diversity, beamforming, and spatial multiplexing. The transmit diversity may include cyclic delay diversity, a space time block code (STBC), and a space frequency block code (SFBC). Spatial multiplexing may include space division multiplexing based on precoding, etc., that is, four major classes are defined in LTE, and different transmission modes are included in each major class.

图3示出了本申请实施例的确定第一多天线发送模式的方法100的示意性框图。该方法100可以由图1或图2中的某个作为接收端的终端设备执行，该方法100包括以下部分或全部内容：FIG. 3 shows a schematic block diagram of a method 100 of determining a first multi-antenna transmission mode in an embodiment of the present application. The method 100 can be performed by a terminal device as a receiving end in FIG. 1 or FIG. 2, and the method 100 includes some or all of the following contents:

S110，第一终端设备接收第二终端设备发送的第一信息；S110. The first terminal device receives the first information sent by the second terminal device.

S110，该第一终端设备根据该第一信息，确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。S110. The first terminal device determines, according to the first information, a first multi-antenna transmission mode used by the data channel sent by the second terminal device.

具体地，可以将方法100中的第一终端设备称为接收端，第二终端设备称为发送端，接收端接收发送端发送的第一信息，并由此确定发送端发送的数据信道所采用的第一多天线发送模式。数据信道可以是物理侧行共享信道(Physical Sidelink Shared Channel，PSSCH)。当接收端确定了发送端发送的PSSCH所采用的第一多天线发送模式之后，接收端就可以根据所确定的第一多天线发送模式接收发送端发送的数据。需要说明的是，本申请实施例涉及的第一多天线发送模式并不是指当前确定出来的由发送端发送的数据信道所采用的多天线发送模式还可以是第二多天线发送模式。换句话说，同一时刻由发送端发送的数据信道所采用的多天线发送模式只能是一个。Specifically, the first terminal device in the method 100 may be referred to as a receiving end, and the second terminal device is referred to as a transmitting end, and the receiving end receives the first information sent by the transmitting end, and thereby determines that the data channel sent by the transmitting end is used. The first multi-antenna transmission mode. The data channel may be a Physical Sidelink Shared Channel (PSSCH). After the receiving end determines the first multi-antenna transmission mode adopted by the PSSCH sent by the transmitting end, the receiving end may receive the data sent by the transmitting end according to the determined first multi-antenna transmission mode. It should be noted that the first multi-antenna transmission mode involved in the embodiment of the present application does not mean that the multi-antenna transmission mode used by the currently determined data channel transmitted by the transmitting end may be the second multi-antenna transmission mode. In other words, the multi-antenna transmission mode used by the data channel transmitted by the transmitting end at the same time can only be one.

因此，本申请实施例的确定第一多天线发送模式的方法，由发送端指示给接收端所发送的数据信道采用的第一多天线发送模式，从而使得接收端能够准确地接收发送端发送的数据，进而提高***传输的性能。Therefore, in the method for determining the first multi-antenna transmission mode in the embodiment of the present application, the transmitting end indicates the first multi-antenna transmission mode adopted by the data channel sent by the receiving end, so that the receiving end can accurately receive the sending by the transmitting end. Data, which in turn improves the performance of system transfers.

可选地，在本申请实施例中，接收端确定的第一多天线发送模式可以是LTE中定义的上述四大类多天线发送模式中的任一种，也可以是其他通信***中定义的多天线发送模式。本申请实施例涉及的第一多天线发送模式应该不限于上述四种。Optionally, in the embodiment of the present application, the first multi-antenna transmission mode determined by the receiving end may be any one of the foregoing four types of multi-antenna transmission modes defined in LTE, or may be defined in other communication systems. Multi-antenna transmission mode. The first multi-antenna transmission mode involved in the embodiment of the present application should not be limited to the above four.

发送端可以通过侧行链路控制信道(Physical Sidelink Control Channel，PSCCH)向接收端指示第一多天线传输模式。例如，可以向接收端发送侧行链路控制信息(Sidelink Control Information，SCI)。也就是说，该第一信息是SCI。The transmitting end may indicate the first multi-antenna transmission mode to the receiving end by using a Physical Sidelink Control Channel (PSCCH). For example, Sidelink Control Information (SCI) can be sent to the receiving end. That is, the first information is an SCI.

发送端可以通过SCI显示指示该第一多天线发送模式。具体地，可以通过SCI中的比特位来指示。例如，使用SCI中的2个比特位来显示指示该第一多天线发送模式。可以使00指示单天线端口发送，使01指示发送分集，10指示空间复用，11指示波束成形。应理解，这里仅仅用于示意，并不进行限定。The transmitting end may indicate the first multi-antenna transmission mode through an SCI display. Specifically, it can be indicated by a bit in the SCI. For example, two bits in the SCI are used to display the indication of the first multi-antenna transmission mode. It is possible to have 00 indicate single antenna port transmission, 01 to indicate transmission diversity, 10 to indicate spatial multiplexing, and 11 to indicate beamforming. It should be understood that the description is not intended to be limiting.

发送端也可以通过SCI隐式指示该第一多天线发送模式。具体地，发送端可以通过对SCI进行掩码处理之后的掩码序列隐式指示第一多天线发送模式。假设SCI的信息比特表示为：a ₀,a ₁,a ₂,a ₃,……,a _A-1,循环冗余校验码(Cyclic Redundancy Check，CRC)校验比特位p ₀,p ₁,p ₂,p ₃,……,p _L-1,其中A表示信息比特长度，L表示校验比特长度。经过加CRC的比特序列表示为b ₀,b ₁,b ₂,b ₃,……,b _B-1,其中B＝A+L， The transmitting end may also implicitly indicate the first multi-antenna transmission mode through the SCI. Specifically, the transmitting end may implicitly indicate the first multi-antenna transmission mode by using a mask sequence after masking the SCI. It is assumed that the information bits of the SCI are represented as: a ₀ , a ₁ , a ₂ , a ₃ , ..., a _A-1 , Cyclic Redundancy Check (CRC) check bits p ₀ , p ₁ , p ₂ , p ₃ , ..., p _L-1 , where A represents the information bit length and L represents the check bit length. The CRC-added bit sequence is denoted as b ₀ , b ₁ , b ₂ , b ₃ , ..., b _B-1 , where B = A + L,

b _k＝a _k 其中，k＝0,1,2,……,A-1 b _k = a _k where k = 0, 1, 2, ..., A-1

b _k＝p _k-A 其中，k＝A，A+1，A+2，……,A+L-1. b _k =p _kA where k=A, A+1, A+2, ..., A+L-1.

对加CRC之后的序列进行加掩码处理，经过掩码处理之后的序列为c ₀,c ₁,c ₂,c ₃,……,c _B-1，其中 The sequence after adding the CRC is masked, and the sequence after the mask processing is c ₀ , c ₁ , c ₂ , c ₃ , ..., c _B-1 , wherein

c _k＝b _k 其中，k＝0,1,2,……,A-1 c _k =b _k where k=0,1,2,...,A-1

c _k＝(b _k+X _mask,k-A)mod 2 其中，k＝A，A+1，A+2，……,A+15. c _k =(b _k +X _mask,kA )mod 2 where k=A, A+1, A+2, ..., A+15.

可以将掩码序列<X _mask,0,X _mask,1,……,X _mask,15>与多天线发送模式对应起来。例如，可以用<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>指示单天线端口发送，用<0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1>指示发送分集，用<1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0>指示空间复用，用<1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1>指示波束成形，应理解，本申请实施例不对具体的掩码序列作限定，可以采用其他的掩码序列来区分不同的多天线发送模式。 The mask sequence <X _{mask, 0} , X _{mask, 1} , ..., X _{mask, 15} > can be associated with the multi-antenna transmission mode. For example, you can use <0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0> to indicate single antenna port transmission, using <0,1,0 ,1,0,1,0,1,0,1,0,1,0,1,0,1> indicate the transmit diversity, using <1,0,1,0,1,0,1,0,1 , 0,1,0,1,0,1,0> indicates spatial multiplexing, using <1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1> indicates beamforming. It should be understood that the specific mask sequence is not limited in the embodiment of the present application, and other mask sequences may be used to distinguish different multi-antenna transmission modes.

应理解，还可以采用SCI的其他特性隐式指示第一多天线发送模式，例如，可以是SCI的格式，也可以是承载SCI的PSCCH所用的时频资源等。It should be understood that the first multi-antenna transmission mode may be implicitly indicated by using other characteristics of the SCI, for example, the format of the SCI, the time-frequency resources used by the PSCCH carrying the SCI, and the like.

还应理解，上述各种对应关系可以提前由网络设备预配置或者预存到终端设备内部。It should also be understood that the above various correspondences may be pre-configured or pre-stored by the network device in advance to the inside of the terminal device.

图4示出了本申请实施例的确定第一多天线发送模式的方法200的示意性框图。该方法200可以由图1或图2中的某个作为发送端的终端设备执行，该方法200包括以下部分或全部内容：FIG. 4 shows a schematic block diagram of a method 200 of determining a first multi-antenna transmission mode in an embodiment of the present application. The method 200 can be performed by a terminal device as a transmitting end in FIG. 1 or FIG. 2, and the method 200 includes some or all of the following contents:

S210，第二终端设备向第一终端设备发送第一信息，该第一信息用于该第一终端设备确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。S210: The second terminal device sends the first information to the first terminal device, where the first information is used by the first terminal device to determine a first multi-antenna transmission mode used by the data channel sent by the second terminal device.

可选地，在本申请实施例中，该第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。Optionally, in the embodiment of the present application, the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmit diversity, spatial multiplexing, and beamforming.

可选地，在本申请实施例中，该第一信息为侧行链路控制信息SCI。Optionally, in the embodiment of the present application, the first information is side line control information SCI.

可选地，在本申请实施例中，该SCI中的比特位用于指示该第一多天线发送模式。Optionally, in the embodiment of the present application, the bit in the SCI is used to indicate the first multi-antenna transmission mode.

可选地，在本申请实施例中，该SCI所采用的掩码序列用于指示该第一多天线发送模式。Optionally, in the embodiment of the present application, the mask sequence used by the SCI is used to indicate the first multi-antenna transmission mode.

应理解，发送端描述的终端设备与接收端之间的交互及相关特性、功能等与接收端的终端设备的相关特性、功能相应。并且相关内容在上述方法100中已经作了详尽描述，为了简洁，在此不再赘述。It should be understood that the interaction between the terminal device and the receiving end described by the transmitting end and related features, functions, and the like correspond to related features and functions of the terminal device at the receiving end. The related content has been described in detail in the above method 100. For brevity, no further details are provided herein.

图5示出了本申请实施例的确定第一多天线发送模式的方法300的示意性框图。该方法300可以由图1中的某个作为发送端的终端设备执行，该方法300包括以下部分或全部内容：FIG. 5 shows a schematic block diagram of a method 300 of determining a first multi-antenna transmission mode in an embodiment of the present application. The method 300 can be performed by a terminal device in FIG. 1 as a transmitting end, and the method 300 includes some or all of the following contents:

S310，第二终端设备接收网络设备发送的第一信息；S310. The second terminal device receives the first information sent by the network device.

S320，该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式。S320. The second terminal device determines, according to the first information, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device.

同样地，可以将第一终端设备称为接收端，第二终端设备称为发送端，由上文可知，发送端的传输资源可以由网络设备来分配。网络设备可以在向发送端分配传输资源的同时向发送端指示其向接收端发送数据信道所采用的第一多天线发送模式。从而发送端就可以根据网络设备指示的第一多天线发送模式发送数据信道，进一步地可以提高数据传输的性能。Similarly, the first terminal device may be referred to as a receiving end, and the second terminal device may be referred to as a transmitting end. As can be seen from the above, the transmission resource of the transmitting end may be allocated by the network device. The network device may indicate to the transmitting end the first multi-antenna transmission mode adopted by the transmitting end to transmit the data channel to the receiving end while allocating the transmission resource to the transmitting end. Therefore, the transmitting end can send the data channel according to the first multi-antenna transmission mode indicated by the network device, and the performance of the data transmission can be further improved.

可选地，在本申请实施例中，网络设备指示的第一多天线发送模式可以是LTE中定义的上述四大类多天线发送模式中的任一种，也可以是其他通信***中定义的多天线发送模式。本申请实施例涉及的第一多天线发送模式应该不限于上述四种。Optionally, in the embodiment of the present application, the first multi-antenna transmission mode indicated by the network device may be any one of the foregoing four types of multi-antenna transmission modes defined in LTE, or may be defined in other communication systems. Multi-antenna transmission mode. The first multi-antenna transmission mode involved in the embodiment of the present application should not be limited to the above four.

可选地，在本申请实施例中，该第一信息可以是下行控制信息(Download Control Information，DCI)或者是无线资源控制(Radio Resource Control，RRC)信令，该第一信息还可以是***消息或广播消息等。Optionally, in the embodiment of the present application, the first information may be Down Control Information (DCI) or Radio Resource Control (RRC) signaling, and the first information may also be a system. Message or broadcast message, etc.

可选地，网络设备可以通过第一信息中的比特位显示指示第一多天线发送模式。例如，可以使用DCI中的2个比特位来指示第一多天线发送模式。同样地可以使00指示单天线端口发送，使01指示发送分集，10指示空间复用，11指示波束成形。网络设备也可以使用上述其他信息中比特位来指示。例如，RRC信令。本申请实施例对此不构成限定。Optionally, the network device may display the first multi-antenna transmission mode by using a bit in the first information. For example, 2 bits in the DCI can be used to indicate the first multi-antenna transmission mode. Similarly, 00 can be used to indicate single antenna port transmission, 01 to indicate transmission diversity, 10 to spatial multiplexing, and 11 to beamforming. The network device can also use the bits in the other information described above to indicate. For example, RRC signaling. This embodiment of the present application does not limit this.

可选地，在本申请实施例中，若第一信息为DCI，网络设备可以使用DCI隐式指示该第一多天线发送模式。具体地，网络设备可以对DCI先进行CRC处理，再进行加掩码处理操作，通过掩码序列隐式指示第一多天线发送模式。网络设备也可以对编码后的DCI进行加扰处理，通过扰码序列隐式指示第一多天线发送模式。应理解，本申请实施例对具体的掩码序列以及扰码序列不作限定，与上文中使用对SCI进行掩码操作后的掩码序列隐式指示第一多天线发送模式类似，这里不作过多描述。Optionally, in the embodiment of the present application, if the first information is DCI, the network device may implicitly indicate the first multi-antenna transmission mode by using the DCI. Specifically, the network device may perform CRC processing on the DCI first, and then perform a mask processing operation, and implicitly indicate the first multi-antenna transmission mode by using a mask sequence. The network device may also perform scrambling processing on the encoded DCI, and implicitly indicate the first multi-antenna transmission mode through the scrambling code sequence. It should be understood that the specific mask sequence and the scrambling code sequence are not limited in the embodiment of the present application, and the mask sequence after masking the SCI is used to implicitly indicate the first multi-antenna transmission mode, which is not excessive here. description.

应理解，网络设备也可以采用DCI的其他特性隐式指示第一多天线发送模式，例如，可以是DCI的格式，也可以是承载DCI的物理下行控制信道(Physical Downlink Control Channel，PDCCH)所用的时频资源等。It should be understood that the network device may also implicitly indicate the first multi-antenna transmission mode by using other characteristics of the DCI, for example, may be a DCI format or a physical downlink control channel (PDCCH) carrying the DCI. Time-frequency resources, etc.

可选地，在本申请实施例中，该第一信息用于指示终端设备的状态与多天线发送模式的映射关系，该第二终端设备根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式，包括：该第二终端设备根据该映射关系，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode, and the second terminal device determines, according to the first information, the second terminal device The first multi-antenna transmission mode adopted by the data channel sent by the terminal device includes: determining, by the second terminal device, the first multi-antenna transmission mode according to the mapping relationship.

也就是说，网络设备可以不直接向发送端指示第一多天线发送模式，而是向发送端发送一些选取准则，发送端就可以根据其自身的情况选择相应的多天线发送模式向接收端发送数据。具体地，网络设备可以向发送端发送终端设备的状态与多天线发送模式的映射关系。例如，该映射关系可以为终端设备的速度与多天线发送模式的对应关系、终端设备的天线数目与多天线发送模式的对应关系、终端设备的同步源类型与多天线发送模式的对应关系、终端设备的业务类型与多天线发送模式的对应关系以及终端设备的业务对应的服务质量(Quality of Service，QoS)需求与发送模式的对应关系等中的至少一种。本申请实施例对此不作限定。That is to say, the network device may not directly indicate the first multi-antenna transmission mode to the transmitting end, but send some selection criteria to the transmitting end, and the transmitting end may select the corresponding multi-antenna transmission mode to send to the receiving end according to its own situation. data. Specifically, the network device may send a mapping relationship between the state of the terminal device and the multi-antenna transmission mode to the transmitting end. For example, the mapping relationship may be a correspondence between a speed of the terminal device and a multi-antenna transmission mode, a correspondence between a number of antennas of the terminal device and a multi-antenna transmission mode, a correspondence between a synchronization source type of the terminal device and a multi-antenna transmission mode, and a terminal. At least one of a correspondence between a service type of the device and a multi-antenna transmission mode, and a correspondence between a quality of service (QoS) requirement corresponding to a service of the terminal device and a transmission mode. This embodiment of the present application does not limit this.

以终端设备的速度与多天线发送模式的对应关系为例，网络设备可以向发送端配置如下表格：Taking the correspondence between the speed of the terminal device and the multi-antenna transmission mode as an example, the network device can configure the following table to the sender:

发送端的终端设备可以根据自己的速度选择相应的多天线发送模式，当有多个多天线发送模式可选时，发送端的终端设备可以基于实现的方式自主选取相应的多天线发送模式。The terminal device at the transmitting end can select a corresponding multi-antenna transmission mode according to its own speed. When multiple multi-antenna transmission modes are available, the terminal device at the transmitting end can independently select the corresponding multi-antenna transmission mode based on the implemented manner.

同样地，网络设备也可以配置终端设备的其他状态与多天线发送模式之间的对应关系。本申请实施例对此不作限定。Similarly, the network device can also configure a correspondence between other states of the terminal device and a multi-antenna transmission mode. This embodiment of the present application does not limit this.

可选地，网络设备可以通过RRC信令半静态的指示上述映射关系，也可以通过DCI、广播消息或***消息向发送端终端设备指示上述映射关系，或者还可以通过预定义、预配置的方式定义上述映射关系。本申请实施例不限于此。Optionally, the network device may indicate the foregoing mapping relationship by using the RRC signaling semi-statically, or may indicate the foregoing mapping relationship to the sending terminal device by using a DCI, a broadcast message, or a system message, or may also adopt a predefined, pre-configured manner. Define the above mapping relationship. The embodiments of the present application are not limited thereto.

图6示出了本申请实施例的确定第一多天线发送模式的方法400的示意性框图。该方法400可以由图1中的某个作为发送端的终端设备执行，该方法400包括以下部分或全部内容：FIG. 6 shows a schematic block diagram of a method 400 of determining a first multi-antenna transmission mode in an embodiment of the present application. The method 400 can be performed by a terminal device in FIG. 1 as a transmitting end, the method 400 including some or all of the following:

S410，网络设备向第二终端设备发送第一信息，该第一信息用于该第二终端设备确定该第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式。S410: The network device sends the first information to the second terminal device, where the first information is used by the second terminal device to determine a first multi-antenna transmission mode used by the second terminal device to send the data channel to the first terminal device.

因此，本申请实施例的确定第一多天线发送模式的方法，发送端可以根据网络设备指示的第一多天线发送模式发送数据信道，从而可以提高数据传输的性能。Therefore, in the method for determining the first multi-antenna transmission mode in the embodiment of the present application, the transmitting end may send the data channel according to the first multi-antenna transmission mode indicated by the network device, so that the performance of data transmission can be improved.

可选地，在本申请实施例中，该第一信息为下行控制信息DCI或无线资源控制RRC信令。Optionally, in the embodiment of the present application, the first information is downlink control information DCI or radio resource control RRC signaling.

可选地，在本申请实施例中，该第一信息中的比特位用于指示该第一多天线发送模式。Optionally, in the embodiment of the present application, the bit in the first information is used to indicate the first multi-antenna transmission mode.

可选地，在本申请实施例中，该DCI所采用的掩码序列或扰码序列用于指示该第一多天线发送模式。Optionally, in the embodiment of the present application, the mask sequence or the scrambling code sequence used by the DCI is used to indicate the first multi-antenna transmission mode.

可选地，在本申请实施例中，该第一信息用于指示终端设备的状态与多天线发送模式的映射关系。Optionally, in the embodiment of the present application, the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode.

可选地，在本申请实施例中，该映射关系为终端设备的速度与发送模式的对应关系，终端设备的天线数目与发送模式的对应关系、终端设备的同步源类型与发送模式的对应关系、终端设备的业务类型与发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与多天线发送模式的对应关系中的至少一种。Optionally, in the embodiment of the present application, the mapping relationship is a correspondence between a speed of the terminal device and a sending mode, a correspondence between a number of antennas of the terminal device and a sending mode, and a correspondence between a synchronization source type of the terminal device and a sending mode. And at least one of a correspondence between a service type of the terminal device and a transmission mode, and a correspondence between a quality of service QoS requirement corresponding to the service of the terminal device and a multi-antenna transmission mode.

应理解，网络侧描述的网络设备与发送端的终端设备之间的交互及相关特性、功能等与发送端的终端设备的相关特性、功能相应。并且相关内容在上述方法300中已经作了详尽描述，为了简洁，在此不再赘述。It should be understood that the interaction between the network device described on the network side and the terminal device on the transmitting end and related features, functions, and the like correspond to related characteristics and functions of the terminal device at the transmitting end. The related content has been described in detail in the above method 300. For brevity, no further details are provided herein.

还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes any limitation.

上文中详细描述了根据本申请实施例的确定第一多天线发送模式的方法，下面将结合图7至图14，描述根据本申请实施例的确定第一多天线发送模式的装置，方法实施例所描述的技术特征适用于以下装置实施例。The method for determining the first multi-antenna transmission mode according to the embodiment of the present application is described in detail above. The apparatus for determining the first multi-antenna transmission mode according to the embodiment of the present application will be described below with reference to FIG. 7 to FIG. 14 . The described technical features are applicable to the following device embodiments.

图7示出了本申请实施例的终端设备500的示意性框图。如图7所示，该终端设备500为第一终端设备，该终端设备500包括：FIG. 7 shows a schematic block diagram of a terminal device 500 of an embodiment of the present application. As shown in FIG. 7, the terminal device 500 is a first terminal device, and the terminal device 500 includes:

接收单元510，用于接收第二终端设备发送的第一信息；The receiving unit 510 is configured to receive first information sent by the second terminal device.

确定单元520，用于根据该第一信息，确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。The determining unit 520 is configured to determine, according to the first information, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device.

因此，本申请实施例的终端设备，由发送端指示给接收端所发送的数据信道采用的第一多天线发送模式，从而使得接收端能够准确地接收发送端发送的数据，进而提高***传输的性能。Therefore, the terminal device in the embodiment of the present application indicates, by the transmitting end, the first multi-antenna transmission mode adopted by the data channel sent by the receiving end, so that the receiving end can accurately receive the data sent by the transmitting end, thereby improving the system transmission. performance.

可选地，在本申请实施例中，该第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。Optionally, in the embodiment of the present application, the first multi-antenna transmission mode is one of single antenna port transmission, transmit diversity, spatial multiplexing, and beamforming.

可选地，在本申请实施例中，该确定单元具体用于：根据该SCI中的比特位，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the determining unit is specifically configured to: determine the first multi-antenna transmission mode according to a bit in the SCI.

可选地，在本申请实施例中，该确定单元具体用于：根据该SCI所采用的掩码序列，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the determining unit is specifically configured to: determine the first multi-antenna transmission mode according to the mask sequence used by the SCI.

应理解，根据本申请实施例的终端设备500可对应于本申请方法实施例中的第一终端设备，并且终端设备500中的各个单元的上述和其它操作和/或功能分别为了实现图3方法中第一终端设备的相应流程，为了简洁，在此不再赘述。It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the first terminal device in the method embodiment of the present application, and the foregoing operations and/or functions of the respective units in the terminal device 500 respectively implement the method of FIG. 3 The corresponding process of the first terminal device is not described here for brevity.

图8示出了本申请实施例的终端设备600的示意性框图。如图8所示，该终端设备600为第二终端设备，该终端设备600包括：FIG. 8 shows a schematic block diagram of a terminal device 600 of an embodiment of the present application. As shown in FIG. 8, the terminal device 600 is a second terminal device, and the terminal device 600 includes:

发送单元，用于向第一终端设备发送第一信息，该第一信息用于该第一终端设备确定该第二终端设备发送的数据信道所采用的第一多天线发送模式。And a sending unit, configured to send the first information to the first terminal device, where the first information is used by the first terminal device to determine a first multi-antenna transmission mode used by the data channel sent by the second terminal device.

应理解，根据本申请实施例的终端设备600可对应于本申请方法实施例中的第二终端设备，并且终端设备600中的各个单元的上述和其它操作和/或功能分别为了实现图4方法中第二终端设备的相应流程，为了简洁，在此不再赘述。It should be understood that the terminal device 600 according to the embodiment of the present application may correspond to the second terminal device in the method embodiment of the present application, and the foregoing operations and/or functions of the respective units in the terminal device 600 respectively implement the method of FIG. 4 The corresponding process of the second terminal device is not described here for brevity.

图9示出了本申请实施例的终端设备700的示意性框图。如图9所示，该终端设备700为第二终端设备，该终端设备700包括：FIG. 9 shows a schematic block diagram of a terminal device 700 according to an embodiment of the present application. As shown in FIG. 9, the terminal device 700 is a second terminal device, and the terminal device 700 includes:

接收单元710，用于接收网络设备发送的第一信息；The receiving unit 710 is configured to receive first information sent by the network device.

确定单元720，用于根据该第一信息，确定该第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式。The determining unit 720 is configured to determine, according to the first information, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device.

因此，本申请实施例的终端设备，发送端可以根据网络设备指示的第一多天线发送模式发送数据信道，从而可以提高数据传输的性能。Therefore, in the terminal device of the embodiment of the present application, the transmitting end may send the data channel according to the first multi-antenna transmission mode indicated by the network device, so that the performance of data transmission can be improved.

可选地，在本申请实施例中，该确定单元具体用于：根据该第一信息中的比特位，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the determining unit is specifically configured to: determine the first multi-antenna transmission mode according to the bit in the first information.

可选地，在本申请实施例中，该确定单元具体用于：根据该DCI所采用的掩码序列或扰码序列，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the determining unit is specifically configured to determine the first multi-antenna transmission mode according to the mask sequence or the scrambling code sequence used by the DCI.

可选的，第二终端设备接收网络设备发送的DCI，所述DCI指示第二终端设备的数据信道PSSCH的传输资源，所述第二终端设备根据数据信道PSSCH所在的资源池和第二对应关系确定数据信道使用的第一多天线发送模式。其中，所述第二对应关系可以为资源池信息和多天线发送模式之间的对应关系。Optionally, the second terminal device receives the DCI sent by the network device, where the DCI indicates the transmission resource of the data channel PSSCH of the second terminal device, and the second terminal device according to the resource pool where the data channel PSSCH is located and the second correspondence relationship The first multi-antenna transmission mode used by the data channel is determined. The second correspondence may be a correspondence between resource pool information and a multi-antenna transmission mode.

可选地，在本申请实施例中，该第一信息用于指示终端设备的状态与多天线发送模式的映射关系，该确定单元具体用于：根据该映射关系，确定该第一多天线发送模式。Optionally, in the embodiment of the present application, the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode, where the determining unit is specifically configured to: determine, according to the mapping relationship, the first multi-antenna transmission mode.

可选地，在本申请实施例中，该映射关系为终端设备的速度与多天线发送模式的对应关系、终端设备的天线数目与多天线发送模式的对应关系、终端设备的同步源类型与多天线发送模式的对应关系、终端设备的业务类型与多天线发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与发送模式的对应关系中的至少一种。Optionally, in the embodiment of the present application, the mapping relationship is a correspondence between a speed of the terminal device and a multi-antenna transmission mode, a correspondence between a number of antennas of the terminal device and a multi-antenna transmission mode, and a synchronization source type of the terminal device. At least one of a correspondence between an antenna transmission mode, a correspondence between a service type of the terminal device and a multi-antenna transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a transmission mode.

应理解，根据本申请实施例的终端设备700可对应于本申请方法实施例中的第二终端设备，并且终端设备700中的各个单元的上述和其它操作和/或功能分别为了实现图5方法中第二终端设备的相应流程，为了简洁，在此不再赘述。It should be understood that the terminal device 700 according to the embodiment of the present application may correspond to the second terminal device in the method embodiment of the present application, and the foregoing operations and/or functions of the respective units in the terminal device 700 respectively implement the method of FIG. 5 The corresponding process of the second terminal device is not described here for brevity.

图10示出了本申请实施例的网络设备800的示意性框图。如图10所示，该网络设备800包括：FIG. 10 shows a schematic block diagram of a network device 800 of an embodiment of the present application. As shown in FIG. 10, the network device 800 includes:

发送单元810，用于向第二终端设备发送第一信息，该第一信息用于该第二终端设备确定该第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式。The sending unit 810 is configured to send, to the second terminal device, first information, where the first information is used by the second terminal device to determine, by using the first multi-antenna transmission, the data channel sent by the second terminal device to the first terminal device mode.

因此，本申请实施例的网络设备，发送端可以根据网络设备指示的第一多天线发送模式发送数据信道，从而可以提高数据传输的性能。Therefore, in the network device of the embodiment of the present application, the transmitting end may send the data channel according to the first multi-antenna transmission mode indicated by the network device, so that the performance of data transmission can be improved.

应理解，根据本申请实施例的网络设备800可对应于本申请方法实施例中的网络设备，并且网络设备800中的各个单元的上述和其它操作和/或功能分别为了实现图6方法中网络设备的相应流程，为了简洁，在此不再赘述。It should be understood that the network device 800 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 800 respectively implement the network in the method of FIG. The corresponding process of the device is not described here for brevity.

如图11所示，本申请实施例还提供了一种终端设备900，该终端设备900可以是图7中的终端设备500，其能够用于执行与图3中方法100对应的终端设备的内容。该终端设备900包括：输入接口910、输出接口920、处理器930以及存储器940，该输入接口910、输出接口920、处理器930和存储器940可以通过总线***相连。该存储器940用于存储包括程序、指令或代码。该处理器930，用于执行该存储器940中的程序、指令或代码，以控制输入接口910接收信号、控制输出接口920发送信号以及完成前述方法实施例中的操作。As shown in FIG. 11, the embodiment of the present application further provides a terminal device 900, which may be the terminal device 500 in FIG. 7, which can be used to execute the content of the terminal device corresponding to the method 100 in FIG. . The terminal device 900 includes an input interface 910, an output interface 920, a processor 930, and a memory 940. The input interface 910, the output interface 920, the processor 930, and the memory 940 can be connected by a bus system. The memory 940 is for storing programs, instructions or code. The processor 930 is configured to execute a program, an instruction or a code in the memory 940 to control the input interface 910 to receive a signal, control the output interface 920 to transmit a signal, and complete the operations in the foregoing method embodiments.

应理解，在本申请实施例中，该处理器930可以是中央处理单元(Central Processing Unit，CPU)，该处理器930还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present application, the processor 930 may be a central processing unit (CPU), and the processor 930 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

该存储器940可以包括只读存储器和随机存取存储器，并向处理器930提供指令和数据。存储器940的一部分还可以包括非易失性随机存取存储器。例如，存储器940还可以存储设备类型的信息。The memory 940 can include read only memory and random access memory and provides instructions and data to the processor 930. A portion of the memory 940 can also include a non-volatile random access memory. For example, the memory 940 can also store information of the device type.

在实现过程中，上述方法的各内容可以通过处理器930中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器940，处理器930读取存储器940 中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。In the implementation process, each content of the above method may be completed by an integrated logic circuit of hardware in the processor 930 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 940, and processor 930 reads the information in memory 940 and, in conjunction with its hardware, performs the contents of the above method. To avoid repetition, it will not be described in detail here.

一个具体的实施方式中，终端设备500中的接收单元可以由图11中的输入接口910实现，终端设备500中的确定单元可以由图11中的处理器930实现。In a specific implementation, the receiving unit in the terminal device 500 can be implemented by the input interface 910 in FIG. 11, and the determining unit in the terminal device 500 can be implemented by the processor 930 in FIG.

如图12所示，本申请实施例还提供了一种终端设备1000，该终端设备1000可以是图8中的终端设备600，其能够用于执行与图4中方法200对应的终端设备的内容。该终端设备1000包括：输入接口1010、输出接口1020、处理器1030以及存储器1040，该输入接口1010、输出接口1020、处理器1030和存储器1040可以通过总线***相连。该存储器1040用于存储包括程序、指令或代码。该处理器1030，用于执行该存储器1040中的程序、指令或代码，以控制输入接口1010接收信号、控制输出接口1020发送信号以及完成前述方法实施例中的操作。As shown in FIG. 12, the embodiment of the present application further provides a terminal device 1000, which may be the terminal device 600 in FIG. 8, which can be used to execute the content of the terminal device corresponding to the method 200 in FIG. . The terminal device 1000 includes an input interface 1010, an output interface 1020, a processor 1030, and a memory 1040. The input interface 1010, the output interface 1020, the processor 1030, and the memory 1040 can be connected by a bus system. The memory 1040 is for storing programs, instructions or codes. The processor 1030 is configured to execute a program, an instruction or a code in the memory 1040 to control the input interface 1010 to receive a signal, control the output interface 1020 to send a signal, and complete the operations in the foregoing method embodiments.

应理解，在本申请实施例中，该处理器1030可以是中央处理单元(Central Processing Unit，CPU)，该处理器1030还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present application, the processor 1030 may be a central processing unit (CPU), and the processor 1030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

该存储器1040可以包括只读存储器和随机存取存储器，并向处理器1030提供指令和数据。存储器1040的一部分还可以包括非易失性随机存取存储器。例如，存储器1040还可以存储设备类型的信息。The memory 1040 can include read only memory and random access memory and provides instructions and data to the processor 1030. A portion of the memory 1040 may also include a non-volatile random access memory. For example, the memory 1040 can also store information of the device type.

在实现过程中，上述方法的各内容可以通过处理器1030中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1040，处理器1030读取存储器1040中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1040, and the processor 1030 reads the information in the memory 1040 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

一个具体的实施方式中，终端设备600中的发送单元可以由图12中的输出接口1020实现。In a specific embodiment, the transmitting unit in the terminal device 600 can be implemented by the output interface 1020 in FIG.

如图13所示，本申请实施例还提供了一种终端设备2000，该终端设备2000可以是图9中的终端设备700，其能够用于执行与图5中方法300对应的终端设备的内容。该终端设备2000包括：输入接口2010、输出接口2020、处理器2030以及存储器2040，该输入接口2010、输出接口2020、处理器2030和存储器2040可以通过总线***相连。该存储器2040用于存储包括程序、指令或代码。该处理器2030，用于执行该存储器2040中的程序、指令或代码，以控制输入接口2010接收信号、控制输出接口2020发送信号以及完成前述方法实施例中的操作。As shown in FIG. 13 , the embodiment of the present application further provides a terminal device 2000, which may be the terminal device 700 in FIG. 9 , which can be used to execute the content of the terminal device corresponding to the method 300 in FIG. 5 . . The terminal device 2000 includes an input interface 2010, an output interface 2020, a processor 2030, and a memory 2040. The input interface 2010, the output interface 2020, the processor 2030, and the memory 2040 can be connected through a bus system. The memory 2040 is for storing programs, instructions or code. The processor 2030 is configured to execute a program, an instruction or a code in the memory 2040 to control the input interface 2010 to receive a signal, control the output interface 2020 to transmit a signal, and complete the operations in the foregoing method embodiments.

应理解，在本申请实施例中，该处理器2030可以是中央处理单元(Central Processing Unit，CPU)，该处理器2030还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present application, the processor 2030 may be a central processing unit (CPU), and the processor 2030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

该存储器2040可以包括只读存储器和随机存取存储器，并向处理器2030提供指令和数据。存储器2040的一部分还可以包括非易失性随机存取存储器。例如，存储器2040还可以存储设备类型的信息。The memory 2040 can include read only memory and random access memory and provides instructions and data to the processor 2030. A portion of the memory 2040 may also include a non-volatile random access memory. For example, the memory 2040 can also store information of the device type.

在实现过程中，上述方法的各内容可以通过处理器2030中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器2040，处理器2030读取存储器2040中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 2030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in conventional memory, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 2040, and the processor 2030 reads the information in the memory 2040 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

一个具体的实施方式中，终端设备700中的接收单元可以由图13中的输入接口2010实现，终端设备700中的确定单元可以由图13中的处理器2030实现。In a specific embodiment, the receiving unit in the terminal device 700 can be implemented by the input interface 2010 in FIG. 13, and the determining unit in the terminal device 700 can be implemented by the processor 2030 in FIG.

如图14所示，本申请实施例还提供了一种网络设备3000，该网络设备3000可以是图10中的网络设备800，其能够用于执行与图6中方法400对应的网络设备的内容。该网络设备3000包括：输入接口3010、输出接口3020、处理器3030以及存储器3040，该输入接口3010、输出接口3020、处理器3030和存储器3040可以通过总线***相连。该存储器3040用于存储包括程序、指令或代码。该处理器3030，用于执行该存储器3040中的程序、指令或代码，以控制输入接口3010接收信号、控制输出接口3020发送信号以及完成前述方法实施例中的操作。As shown in FIG. 14, the embodiment of the present application further provides a network device 3000, which may be the network device 800 in FIG. 10, which can be used to execute the content of the network device corresponding to the method 400 in FIG. . The network device 3000 includes an input interface 3010, an output interface 3020, a processor 3030, and a memory 3040. The input interface 3010, the output interface 3020, the processor 3030, and the memory 3040 can be connected by a bus system. The memory 3040 is for storing programs, instructions or code. The processor 3030 is configured to execute a program, an instruction or a code in the memory 3040 to control the input interface 3010 to receive a signal, control the output interface 3020 to send a signal, and complete the operations in the foregoing method embodiments.

应理解，在本申请实施例中，该处理器3030可以是中央处理单元(Central Processing Unit，CPU)，该处理器3030还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present application, the processor 3030 may be a central processing unit (CPU), and the processor 3030 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

该存储器3040可以包括只读存储器和随机存取存储器，并向处理器3030提供指令和数据。存储器3040的一部分还可以包括非易失性随机存取存储器。例如，存储器3040还可以存储设备类型的信息。The memory 3040 can include read only memory and random access memory and provides instructions and data to the processor 3030. A portion of the memory 3040 can also include a non-volatile random access memory. For example, the memory 3040 can also store information of the device type.

在实现过程中，上述方法的各内容可以通过处理器3030中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器3040，处理器3030读取存储器3040中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。In the implementation process, each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 3030 or an instruction in a form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 3040, and the processor 3030 reads the information in the memory 3040 and combines its hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.

一个具体的实施方式中，网络设备800中的发送单元可以由图14中的输出接口3020实现。In a specific embodiment, the transmitting unit in network device 800 can be implemented by output interface 3020 in FIG.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应该以权利要求的保护范围为准。The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of protection of the claims.

Claims

一种确定第一多天线发送模式的方法，其特征在于，所述方法应用于车联网***中，所述包括：A method for determining a first multi-antenna transmission mode, wherein the method is applied to a car network system, the method comprising:

第一终端设备接收第二终端设备发送的第一信息；Receiving, by the first terminal device, the first information sent by the second terminal device;

所述第一终端设备根据所述第一信息，确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式。Determining, by the first terminal device, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device according to the first information.
根据权利要求1所述的方法，其特征在于，所述第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。The method according to claim 1, wherein the first multi-antenna transmission mode is one of single antenna port transmission, transmit diversity, spatial multiplexing, and beamforming.
根据权利要求1或2所述的方法，其特征在于，所述第一信息为侧行链路控制信息SCI。The method according to claim 1 or 2, wherein the first information is sideline control information SCI.
根据权利要求3所述的方法，其特征在于，所述第一终端设备根据所述第一信息，确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式，包括：The method according to claim 3, wherein the first terminal device determines, according to the first information, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device, including:

所述第一终端设备根据所述SCI中的比特位，确定所述第一多天线发送模式。The first terminal device determines the first multi-antenna transmission mode according to a bit in the SCI.
根据权利要求3所述的方法，其特征在于，所述第一终端设备根据所述第一信息，确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式，包括：The method according to claim 3, wherein the first terminal device determines, according to the first information, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device, including:

所述第一终端设备根据所述SCI所采用的掩码序列，确定所述第一多天线发送模式。The first terminal device determines the first multi-antenna transmission mode according to a mask sequence used by the SCI.
一种确定第一多天线发送模式的方法，其特征在于，所述方法应用于车联网***中，所述方法包括：A method for determining a first multi-antenna transmission mode, wherein the method is applied to a car network system, the method comprising:

第二终端设备向第一终端设备发送第一信息，所述第一信息用于所述第一终端设备确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式。The second terminal device sends the first information to the first terminal device, where the first information is used by the first terminal device to determine a first multi-antenna transmission mode used by the data channel sent by the second terminal device.
根据权利要求6所述的方法，其特征在于，所述第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。The method according to claim 6, wherein the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmit diversity, spatial multiplexing, and beamforming.
根据权利要求6或7所述的方法，其特征在于，所述第一信息为侧行链路控制信息SCI。The method according to claim 6 or 7, wherein the first information is sideline control information SCI.
根据权利要求8所述的方法，其特征在于，所述SCI中的比特位用于指示所述第一多天线发送模式。The method according to claim 8, wherein the bits in the SCI are used to indicate the first multi-antenna transmission mode.
根据权利要求8所述的方法，其特征在于，所述SCI所采用的掩码序列用于指示所述第一多天线发送模式。The method according to claim 8, wherein the mask sequence used by the SCI is used to indicate the first multi-antenna transmission mode.
一种确定第一多天线发送模式的方法，其特征在于，所述方法应用于车联网***中，所述方法包括：A method for determining a first multi-antenna transmission mode, wherein the method is applied to a car network system, the method comprising:

第二终端设备接收网络设备发送的第一信息；Receiving, by the second terminal device, the first information sent by the network device;

所述第二终端设备根据所述第一信息，确定所述第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式。Determining, by the second terminal device, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device according to the first information.
根据权利要求11所述的方法，其特征在于，所述第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。The method according to claim 11, wherein the first multi-antenna transmission mode is one of single antenna port transmission, transmit diversity, spatial multiplexing, and beamforming.
根据权利要求11或12所述的方法，其特征在于，所述第一信息为下行控制信息DCI或无线资源控制RRC信令。The method according to claim 11 or 12, wherein the first information is downlink control information DCI or radio resource control RRC signaling.
根据权利要求11至13中任一项所述的方法，其特征在于，所述第二终端设备根据所述第一信息，确定所述第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式，包括：The method according to any one of claims 11 to 13, wherein the second terminal device determines, according to the first information, a data channel that is sent by the second terminal device to the first terminal device A multi-antenna transmission mode, including:

所述第二终端设备根据所述第一信息中的比特位，确定所述第一多天线发送模式。The second terminal device determines the first multi-antenna transmission mode according to a bit in the first information.
根据权利要求13所述的方法，其特征在于，所述第二终端设备根据所述第一信息，确定所述第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式，包括：The method according to claim 13, wherein the second terminal device determines, according to the first information, a first multi-antenna transmission mode of a data channel sent by the second terminal device to the first terminal device, include:

所述第二终端设备根据所述DCI所采用的掩码序列或扰码序列，确定所述第一多天线发送模式。The second terminal device determines the first multi-antenna transmission mode according to a mask sequence or a scrambling code sequence used by the DCI.
根据权利要求11至13中任一项所述的方法，其特征在于，所述第一信息用于指示终端设备的状态与多天线发送模式的映射关系，所述第二终端设备根据所述第一信息，确定所述第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式，包括：The method according to any one of claims 11 to 13, wherein the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode, and the second terminal device is configured according to the a first multicast transmission mode used by the second terminal device to determine a data channel sent by the first terminal device, including:

所述第二终端设备根据所述映射关系，确定所述第一多天线发送模式。The second terminal device determines the first multi-antenna transmission mode according to the mapping relationship.
根据权利要求16所述的方法，其特征在于，所述映射关系为终端设备的速度与多天线发送模式的对应关系、终端设备的天线数目与多天线发送模式的对应关系、终端设备的同步源类型与多天线发送模式的对应关系、终端设备的业务类型与多天线发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与发送模式的对应关系中的至少一种。The method according to claim 16, wherein the mapping relationship is a correspondence between a speed of the terminal device and a multi-antenna transmission mode, a correspondence between a number of antennas of the terminal device and a multi-antenna transmission mode, and a synchronization source of the terminal device. At least one of a correspondence between a type and a multi-antenna transmission mode, a correspondence between a service type of the terminal device and a multi-antenna transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a transmission mode.
一种确定第一多天线发送模式的方法，其特征在于，所述方法应用于车联网***中，所述方法包括：A method for determining a first multi-antenna transmission mode, wherein the method is applied to a car network system, the method comprising:

网络设备向第二终端设备发送第一信息，所述第一信息用于所述第二终端设备确定所述第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式。The network device sends the first information to the second terminal device, where the first information is used by the second terminal device to determine a first multi-antenna transmission mode used by the second terminal device to send the data channel to the first terminal device .
根据权利要求18所述的方法，其特征在于，所述第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。The method according to claim 18, wherein the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmit diversity, spatial multiplexing, and beamforming.
根据权利要求18或19所述的方法，其特征在于，所述第一信息为下行控制信息DCI或无线资源控制RRC信令。The method according to claim 18 or 19, wherein the first information is downlink control information DCI or radio resource control RRC signaling.
根据权利要求18至20中任一项所述的方法，其特征在于，所述第一信息中的比特位用于指示所述第一多天线发送模式。The method according to any one of claims 18 to 20, wherein the bit in the first information is used to indicate the first multi-antenna transmission mode.
根据权利要求20所述的方法，其特征在于，所述DCI所采用的掩码序列或扰码序列用于指示所述第一多天线发送模式。The method according to claim 20, wherein the mask sequence or scrambling code sequence used by the DCI is used to indicate the first multi-antenna transmission mode.
根据权利要求18至20中任一项所述的方法，其特征在于，所述第一信息用于指示终端设备的状态与多天线发送模式的映射关系。The method according to any one of claims 18 to 20, wherein the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode.
根据权利要求23所述的方法，其特征在于，所述映射关系为终端设备的速度与发送模式的对应关系，终端设备的天线数目与发送模式的对应关系、终端设备的同步源类型与发送模式的对应关系、终端设备的业务类型与发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与多天线发送模式的对应关系中的至少一种。The method according to claim 23, wherein the mapping relationship is a correspondence between a speed of the terminal device and a transmission mode, a correspondence between a number of antennas of the terminal device and a transmission mode, a synchronization source type and a transmission mode of the terminal device. Correspondence relationship, correspondence between the service type of the terminal device and the transmission mode, and at least one of the correspondence between the quality of service QoS requirement corresponding to the service of the terminal device and the multi-antenna transmission mode.
一种终端设备，其特征在于，所述终端设备为第一终端设备，包括：A terminal device, wherein the terminal device is a first terminal device, including:

接收单元，用于接收第二终端设备发送的第一信息；a receiving unit, configured to receive first information sent by the second terminal device;

确定单元，用于根据所述第一信息，确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式。And a determining unit, configured to determine, according to the first information, a first multi-antenna transmission mode adopted by the data channel sent by the second terminal device.
根据权利要求25所述的终端设备，其特征在于，所述第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。The terminal device according to claim 25, wherein the first multi-antenna transmission mode is one of single antenna port transmission, transmission diversity, spatial multiplexing, and beamforming.
根据权利要求25或26所述的终端设备，其特征在于，所述第一信息为侧行链路控制信息SCI。The terminal device according to claim 25 or 26, wherein the first information is side-line control information SCI.
根据权利要求27所述的终端设备，其特征在于，所述确定单元具体用于：The terminal device according to claim 27, wherein the determining unit is specifically configured to:

根据所述SCI中的比特位，确定所述第一多天线发送模式。The first multi-antenna transmission mode is determined according to a bit in the SCI.
根据权利要求27所述的终端设备，其特征在于，所述确定单元具体用于：The terminal device according to claim 27, wherein the determining unit is specifically configured to:

根据所述SCI所采用的掩码序列，确定所述第一多天线发送模式。Determining the first multi-antenna transmission mode according to a mask sequence used by the SCI.
一种终端设备，其特征在于，所述终端设备为第二终端设备，包括：A terminal device, where the terminal device is a second terminal device, including:

发送单元，用于向第一终端设备发送第一信息，所述第一信息用于所述第一终端设备确定所述第二终端设备发送的数据信道所采用的第一多天线发送模式。And a sending unit, configured to send the first information to the first terminal device, where the first information is used by the first terminal device to determine a first multi-antenna transmission mode used by the data channel sent by the second terminal device.
根据权利要求30所述的终端设备，其特征在于，所述第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。The terminal device according to claim 30, wherein the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmission diversity, spatial multiplexing, and beamforming.
根据权利要求30或31所述的终端设备，其特征在于，所述第一信息为侧行链路控制信息SCI。The terminal device according to claim 30 or 31, wherein the first information is side-line control information SCI.
根据权利要求32所述的终端设备，其特征在于，所述SCI中的比特位用于指示所述第一多天线发送模式。The terminal device according to claim 32, wherein the bit in the SCI is used to indicate the first multi-antenna transmission mode.
根据权利要求32所述的终端设备，其特征在于，所述SCI所采用的掩码序列用于指示所述第一多天线发送模式。The terminal device according to claim 32, wherein the mask sequence adopted by the SCI is used to indicate the first multi-antenna transmission mode.
一种终端设备，其特征在于，所述终端设备为第二终端设备，包括：A terminal device, where the terminal device is a second terminal device, including:

接收单元，用于接收网络设备发送的第一信息；a receiving unit, configured to receive first information sent by the network device;

确定单元，用于根据所述第一信息，确定所述第二终端设备向第一终端设备发送的数据信道的第一多天线发送模式。And a determining unit, configured to determine, according to the first information, a first multi-antenna transmission mode of the data channel that is sent by the second terminal device to the first terminal device.
根据权利要求35所述的终端设备，其特征在于，所述第一多天线发送模式为单天线端口发送、发送分集、空间复用和波束成形中的一种。The terminal device according to claim 35, wherein the first multi-antenna transmission mode is one of single antenna port transmission, transmission diversity, spatial multiplexing, and beamforming.
根据权利要求35或36所述的终端设备，其特征在于，所述第一信息为下行控制信息DCI或无线资源控制RRC信令。The terminal device according to claim 35 or 36, wherein the first information is downlink control information DCI or radio resource control RRC signaling.
根据权利要求35至37中任一项所述的终端设备，其特征在于，所述确定单元具体用于：The terminal device according to any one of claims 35 to 37, wherein the determining unit is specifically configured to:

根据所述第一信息中的比特位，确定所述第一多天线发送模式。Determining the first multi-antenna transmission mode according to a bit in the first information.
根据权利要求37所述的终端设备，其特征在于，所述确定单元具体用于：The terminal device according to claim 37, wherein the determining unit is specifically configured to:

根据所述DCI所采用的掩码序列或扰码序列，确定所述第一多天线发送模式。The first multi-antenna transmission mode is determined according to a mask sequence or a scrambling code sequence used by the DCI.
根据权利要求35至37中任一项所述的终端设备，其特征在于，所述第一信息用于指示终端设备的状态与多天线发送模式的映射关系，所述确定单元具体用于：The terminal device according to any one of claims 35 to 37, wherein the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode, and the determining unit is specifically configured to:

根据所述映射关系，确定所述第一多天线发送模式。Determining the first multi-antenna transmission mode according to the mapping relationship.
根据权利要求40所述的终端设备，其特征在于，所述映射关系为终端设备的速度与多天线发送模式的对应关系、终端设备的天线数目与多天线发送模式的对应关系、终端设备的同步源类型与多天线发送模式的对应关系、终端设备的业务类型与多天线发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与发送模式的对应关系中的至少一种。The terminal device according to claim 40, wherein the mapping relationship is a correspondence between a speed of the terminal device and a multi-antenna transmission mode, a correspondence between a number of antennas of the terminal device and a multi-antenna transmission mode, and synchronization of the terminal device. At least one of a correspondence between a source type and a multi-antenna transmission mode, a correspondence between a service type of the terminal device and a multi-antenna transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a transmission mode.
一种网络设备，其特征在于，包括：A network device, comprising:

发送单元，用于向第二终端设备发送第一信息，所述第一信息用于所述第二终端设备确定所述第二终端设备向第一终端设备发送的数据信道所采用的第一多天线发送模式。a sending unit, configured to send, to the second terminal device, the first information, where the first information is used by the second terminal device to determine a first used by the second terminal device to send the data channel to the first terminal device Antenna transmission mode.
根据权利要求42所述的网络设备，其特征在于，所述第一多天线发送模式为单天线端口发送模式、发送分集、空间复用和波束成形中的一种。The network device according to claim 42, wherein the first multi-antenna transmission mode is one of a single antenna port transmission mode, transmit diversity, spatial multiplexing, and beamforming.
根据权利要求42或43所述的网络设备，其特征在于，所述第一信息为下行控制信息DCI或无线资源控制RRC信令。The network device according to claim 42 or 43, wherein the first information is downlink control information DCI or radio resource control RRC signaling.
根据权利要求42至44中任一项所述的网络设备，其特征在于，所述第一信息中的比特位用于指示所述第一多天线发送模式。The network device according to any one of claims 42 to 44, wherein the bit in the first information is used to indicate the first multi-antenna transmission mode.
根据权利要求44所述的网络设备，其特征在于，所述DCI所采用的掩码序列或扰码序列用于指示所述第一多天线发送模式。The network device according to claim 44, wherein the mask sequence or scrambling code sequence used by the DCI is used to indicate the first multi-antenna transmission mode.
根据权利要求42至44中任一项所述的网络设备，其特征在于，所述第一信息用于指示终端设备的状态与多天线发送模式的映射关系。The network device according to any one of claims 42 to 44, wherein the first information is used to indicate a mapping relationship between a state of the terminal device and a multi-antenna transmission mode.
根据权利要求47所述的网络设备，其特征在于，所述映射关系为终端设备的速度与发送模式的对应关系，终端设备的天线数目与发送模式的对应关系、终端设备的同步源类型与发送模式的对应关系、终端设备的业务类型与发送模式的对应关系以及终端设备的业务对应的服务质量QoS需求与多天线发送模式的对应关系中的至少一种。The network device according to claim 47, wherein the mapping relationship is a correspondence between a speed of the terminal device and a transmission mode, a correspondence between a number of antennas of the terminal device and a transmission mode, a synchronization source type of the terminal device, and a transmission. At least one of a correspondence of a mode, a correspondence between a service type of the terminal device and a transmission mode, and a correspondence between a quality of service QoS requirement corresponding to a service of the terminal device and a multi-antenna transmission mode.