WO2016184335A1

WO2016184335A1 - Channel state information feedback method and terminal

Info

Publication number: WO2016184335A1
Application number: PCT/CN2016/081729
Authority: WO
Inventors: 陈文洪
Original assignee: 电信科学技术研究院
Priority date: 2015-05-21
Filing date: 2016-05-11
Publication date: 2016-11-24

Abstract

Embodiments of the present invention relate to the field of communication, in particular to a channel state information feedback method and a terminal. The channel state information feedback method comprises: enabling a terminal to determine, according to received information for feeding back CSI, a CSI feedback mode, and performing, according to the determined CSI feedback mode, CSI measurement and feedback. In the embodiments of the present invention, a network device indicates a CSI feedback allocation group for feeding back CSI to a terminal, and the terminal determines a CSI feedback mode corresponding to the CSI feedback allocation group after the terminal receives the CSI feedback allocation group.

Description

一种信道状态信息反馈方法和终端Channel state information feedback method and terminal

相关申请的交叉引用Cross-reference to related applications

本申请要求在2015年5月21日提交中国专利局，申请号为201510263161.4、发明名称为“一种信道状态信息反馈方法和终端”的中国专利申请和在2015年5月28日提交中国专利局，申请号为201510282902.3、发明名称为“一种信道状态信息反馈方法和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application is required to be submitted to the Chinese Patent Office on May 21, 2015, the application number is 201510263161.4, the Chinese patent application with the invention name "a channel state information feedback method and terminal" and submitted to the Chinese Patent Office on May 28, 2015. The priority of the Chinese Patent Application No. 201510282902.3, entitled "A Channel Status Information Feedback Method and Terminal", the entire contents of which is hereby incorporated by reference.

技术领域Technical field

本公开实施例涉及通信领域，尤其涉及一种信道状态信息反馈方法和终端。The embodiments of the present disclosure relate to the field of communications, and in particular, to a channel state information feedback method and a terminal.

背景技术Background technique

现有蜂窝***中，网络设备(如基站)的天线阵列一般呈水平排列，如图1a所示的水平排列的双极化天线和图1b所示的水平排列的线阵天线。网络设备发射端波束仅能在水平方向进行调整，而垂直方向是固定的下倾角，因此各种波束赋形/预编码技术等均是基于水平方向信道信息进行的。事实上，由于无线信号在空间中是三维传播的，固定下倾角的方法不能使***的性能达到最优。垂直方向的波束调整对于降低小区间干扰，提高***性能有着很重要的意义。随着天线技术的发展，业界已出现能够对每个阵子独立控制的有源天线，采用这种天线阵列，使得波束在垂直方向的动态调整成为可能，如图1c所示的水平和垂直二维排列的双极化天线，如图1d所示的水平和垂直排列的线阵天线。In existing cellular systems, the antenna arrays of network devices (e.g., base stations) are generally horizontally arranged, such as the horizontally arranged dual polarized antennas shown in Figure 1a and the horizontally arranged linear array antennas shown in Figure 1b. The transmitter beam of the network equipment can only be adjusted in the horizontal direction, and the vertical direction is a fixed downtilt angle. Therefore, various beamforming/precoding techniques and the like are performed based on the horizontal channel information. In fact, since the wireless signal is three-dimensionally propagated in space, the method of fixing the downtilt angle does not optimize the performance of the system. Vertical beam adjustment is very important for reducing inter-cell interference and improving system performance. With the development of antenna technology, the industry has emerged an active antenna that can independently control each array. With this antenna array, dynamic adjustment of the beam in the vertical direction is possible, as shown in Figure 1c. Arranged dual-polarized antennas, as shown in Figure 1d, are arranged horizontally and vertically.

在这种三维天线阵列下，网络设备的发送信号不仅可以在水平方向上对终端进行赋形，还可以在垂直方向上对终端进行赋形。为了使网络设备确定垂直方向的赋形向量使垂直方向的波束能够对准终端，从而获得最大的赋形增益，通常需要终端反馈垂直方向的信道状态信息(Channel State Information，CSI)。 Under such a three-dimensional antenna array, the transmission signal of the network device can not only shape the terminal in the horizontal direction, but also shape the terminal in the vertical direction. In order for the network device to determine the vertical direction of the shaping vector so that the vertical direction beam can be aligned with the terminal to obtain the maximum shaping gain, the terminal usually needs to feed back the channel state information (CSI) in the vertical direction.

如果网络设备支持全维度多入多出技术(Full Dimension Multi-Input-Multi-Output，FD-MIMO)，即支持CSI波束赋形(beamforming)的传输方式，则需要终端上报最优的CSI反馈配置对应的CSI以及该CSI的相应位置信息，以使网络设备获得当前最优的波束信息。而如果网络设备不支持FD-MIMO，则终端需要反馈所有配置的CSI反馈配置对应的CSI，且不需要上报该CSI的相应位置信息。由于网络设备是否配置了大量的天线从而支持FD-MIMO对终端来说是未知的，因此终端无法确定选择哪种方式进行CSI反馈。If the network device supports Full Dimension Multi-Input-Multi-Output (FD-MIMO), that is, the CSI beamforming transmission mode is required, the terminal needs to report the optimal CSI feedback configuration. Corresponding CSI and corresponding location information of the CSI, so that the network device obtains the current optimal beam information. If the network device does not support FD-MIMO, the terminal needs to feed back the CSI corresponding to all the configured CSI feedback configurations, and does not need to report the corresponding location information of the CSI. Since the network device is configured with a large number of antennas to support FD-MIMO, it is unknown to the terminal, so the terminal cannot determine which way to perform CSI feedback.

综上所述，亟需一种信道状态信息反馈方法和终端，用于使终端根据接收到的用于CSI反馈的信息确定出CSI反馈方式，进而根据确定出的CSI反馈方式进行CSI测量和反馈。In summary, a channel state information feedback method and a terminal are needed for the terminal to determine a CSI feedback mode according to the received information for CSI feedback, and then perform CSI measurement and feedback according to the determined CSI feedback mode. .

发明内容Summary of the invention

本公开实施例提供一种信道状态信息反馈方法和终端，用于使终端根据接收到的用于CSI反馈的信息确定出CSI反馈方式，进而根据确定出的CSI反馈方式进行CSI测量和反馈。The embodiment of the present disclosure provides a channel state information feedback method and a terminal, which are used to enable a terminal to determine a CSI feedback manner according to the received information for CSI feedback, and then perform CSI measurement and feedback according to the determined CSI feedback manner.

本公开实施例提供一种信道状态信息反馈方法，包括：An embodiment of the present disclosure provides a channel state information feedback method, including:

接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；Receiving a CSI feedback configuration group for channel state information CSI feedback indicated by the network device;

确定该CSI反馈配置组对应的CSI反馈方式；Determining a CSI feedback mode corresponding to the CSI feedback configuration group;

根据该确定的CSI反馈方式进行CSI测量和反馈。CSI measurement and feedback are performed according to the determined CSI feedback mode.

可选地，该CSI反馈方式包括第一反馈方式和第二反馈方式；Optionally, the CSI feedback manner includes a first feedback manner and a second feedback manner.

该第一反馈方式是指反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；该第二反馈方式是指从该CSI反馈配置组中选择最优CSI反馈配置，并反馈基于该CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。The first feedback mode refers to feedback CSI measured based on all CSI feedback configurations in the CSI feedback configuration group; the second feedback mode refers to selecting an optimal CSI feedback configuration from the CSI feedback configuration group, and the feedback is based on The CSI of the optimal CSI feedback configuration in the CSI feedback configuration group performs measurement of the CSI and the location information of the optimal CSI feedback configuration in the CSI feedback configuration group.

可选地，该从该CSI反馈配置组中选择最优CSI反馈配置，包括：Optionally, selecting the optimal CSI feedback configuration from the CSI feedback configuration group includes:

对该CSI反馈配置组中的每个CSI反馈配置进行参考信号接收功率RSRP测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置；或者 The reference signal received power RSRP measurement is performed on each CSI feedback configuration in the CSI feedback configuration group, and the CSI feedback configuration corresponding to the determined one or more RSRP median RSRPs is determined as the optimal in the CSI feedback configuration group. CSI feedback configuration; or

对该CSI反馈配置组中的每个CSI反馈配置进行信道质量指示CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing channel quality indicator CQI estimation for each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs is the best in the CSI feedback configuration group. CSI feedback configuration; or

对该CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的传输块尺寸TBsize，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。Performing CSI measurement on each CSI feedback configuration in the CSI feedback configuration group, and obtaining a transport block size TBsize corresponding to each CSI feedback configuration according to the CSI measurement result, and correspondingly determining one or more TBsizes having the largest median value of TBsize The CSI feedback configuration is used as the optimal CSI feedback configuration in the set of CSI feedback configuration groups.

可选地，该最优的CSI反馈配置在该CSI反馈配置组中的位置信息具体是指：Optionally, the location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to:

最优的CSI反馈配置在该CSI反馈配置组中的索引；或者The index of the optimal CSI feedback configuration in the CSI feedback configuration group; or

最优的CSI反馈配置在该CSI反馈配置组的位置序列上对应位置的比特值，该CSI反馈配置组中的每个CSI反馈配置对应该位置序列上的一个位置。The optimal CSI feedback configures a bit value of the corresponding position on the position sequence of the CSI feedback configuration group, and each CSI feedback configuration in the CSI feedback configuration group corresponds to a position on the sequence of positions.

可选地，若所述确定的CSI反馈方式为第二反馈方式，且反馈的基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含秩指示RI，则所述位置信息的反馈周期为所述RI的反馈周期的N倍，且所述位置信息的物理上行链路控制信道PUCCH资源位置与所述RI的PUCCH资源位置相同，其中，N为正整数。Optionally, if the determined CSI feedback mode is the second feedback mode, and the feedback CSI based on the optimal CSI feedback configuration in the CSI feedback configuration group is included in the CSI, the location is included. The feedback period of the information is N times the feedback period of the RI, and the physical uplink control channel PUCCH resource location of the location information is the same as the PUCCH resource location of the RI, where N is a positive integer.

可选地，在同一个子帧中反馈所述位置信息和所述RI时，所述位置信息和所述RI时是经过联合编码或者级联之后反馈的。Optionally, when the location information and the RI are fed back in the same subframe, the location information and the RI time are fed back after joint coding or concatenation.

可选地，在同一个子帧中反馈所述位置信息和所述RI时，所述RI是根据该同一个子帧中反馈的所述位置信息对应的最优的CSI反馈配置进行测量得到的。Optionally, when the location information and the RI are fed back in the same subframe, the RI is measured according to an optimal CSI feedback configuration corresponding to the location information that is fed back in the same subframe.

可选地，在不同子帧中反馈所述位置信息和所述RI时，所反馈的RI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Optionally, when the location information and the RI are fed back in different subframes, the fed back RI is obtained by performing CSI measurement according to an optimal CSI feedback configuration corresponding to the most recently fed back location information.

可选地，该确定该CSI反馈配置组对应的CSI反馈方式，包括：Optionally, the CSI feedback manner corresponding to the CSI feedback configuration group is determined, including:

根据该CSI反馈配置组中包含的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations included in the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式；或者 Determining, according to the number of CSI feedback configurations in the CSI feedback configuration group, the CSI feedback configuration corresponding to the CSI feedback configuration group; or

根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the feedback mode indication information included in the trigger signaling of the received aperiodic CSI feedback, the CSI feedback mode corresponding to the CSI feedback configuration group; or

根据该CSI反馈配置组对应的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息；或者Determining, according to the feedback mode indication information corresponding to the CSI feedback configuration group, the CSI feedback mode corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information; or

根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，其中，该CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。The CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback.

可选地，该根据该CSI反馈配置组中包含的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式，包括：Optionally, the CSI feedback manner corresponding to the CSI feedback configuration group is determined according to the number of CSI feedback configurations included in the CSI feedback configuration group, including:

若该CSI反馈配置组中包含一个CSI反馈配置，则确定针对该CSI反馈配置组采用第一反馈方式，该第一反馈方式是指反馈该CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the CSI feedback configuration group includes a CSI feedback configuration, determining that the CSI feedback configuration group adopts a first feedback manner, where the first feedback manner refers to feeding back CSI corresponding to all CSI feedback configurations in the CSI feedback configuration group; or

若该CSI反馈配置组中包含多个CSI反馈配置，则确定针对该CSI反馈配置组采用第二反馈方式，该第二反馈方式是指反馈该CSI反馈配置组中最优的CSI反馈配置对应的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。If the CSI feedback configuration group includes multiple CSI feedback configurations, it is determined that the second feedback mode is adopted for the CSI feedback configuration group, where the second feedback mode refers to feedback corresponding to the optimal CSI feedback configuration in the CSI feedback configuration group. The CSI and the optimal CSI feedback configure location information in the CSI feedback configuration group.

可选地，该根据该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式，包括：Optionally, the CSI feedback manner corresponding to the CSI feedback configuration group is determined according to the number of CSI feedback configurations in the CSI feedback configuration group, including:

若针对该CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对该CSI反馈配置组采用第一反馈方式，否则确定针对该CSI反馈配置组采用第二反馈方式，其中，该第一反馈方式是指反馈该CSI反馈配置组中的所有CSI反馈配置对应的CSI，该第二反馈方式是指反馈该CSI反馈配置组中最优的CSI反馈配置对应的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。If the CSI feedback configuration is required for all the CSI feedback configurations included in the CSI feedback configuration group, the first feedback mode is determined for the CSI feedback configuration group, and the second feedback mode is determined for the CSI feedback configuration group. The first feedback mode refers to the CSI corresponding to all the CSI feedback configurations in the CSI feedback configuration group, and the second feedback mode refers to the CSI corresponding to the optimal CSI feedback configuration in the CSI feedback configuration group. The CSI feedback configures location information in the CSI feedback configuration group.

可选地，该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量是预先约定的；或者Optionally, the number of CSI feedback configurations in the CSI feedback configuration group that require CSI feedback is pre-agreed; or

该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由该网络设备配置；或者 The number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is configured by the network device; or

该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由该网络设备通过非周期CSI反馈的触发信令中包含的指示信息进行指示。The number of CSI feedback configurations that need to be subjected to CSI feedback in the CSI feedback configuration group is indicated by the indication information included in the trigger signaling of the aperiodic CSI feedback by the network device.

可选地，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中。Optionally, the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group.

可选地，该根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，包括：Optionally, determining, according to the feedback mode of the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group, including:

若该CSI反馈配置组的反馈模式为周期CSI反馈，则确定该CSI反馈配置组对应的CSI反馈方式为第一反馈方式，第一反馈方式是指反馈该CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the feedback mode of the CSI feedback configuration group is periodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the first feedback mode, and the first feedback manner refers to feeding back all CSI feedback configurations in the CSI feedback configuration group. Corresponding CSI; or

若该CSI反馈配置组的反馈模式为非周期CSI反馈，则确定该CSI反馈配置组对应的CSI反馈方式为第二反馈方式，第二反馈方式是指反馈该CSI反馈配置组中最优的CSI反馈配置对应的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。If the feedback mode of the CSI feedback configuration group is aperiodic CSI feedback, the CSI feedback mode corresponding to the CSI feedback configuration group is determined to be the second feedback mode, and the second feedback mode is to feedback the optimal CSI in the CSI feedback configuration group. The CSI corresponding to the feedback configuration and the optimal CSI feedback configure location information in the CSI feedback configuration group.

本公开实施例提供一种终端，包括：An embodiment of the present disclosure provides a terminal, including:

接收单元，用于接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；a receiving unit, configured to receive a CSI feedback configuration group for channel state information CSI feedback indicated by the network device;

确定单元，用于确定该CSI反馈配置组对应的CSI反馈方式；a determining unit, configured to determine a CSI feedback mode corresponding to the CSI feedback configuration group;

处理单元，用于根据该确定的CSI反馈方式进行CSI测量和反馈。And a processing unit, configured to perform CSI measurement and feedback according to the determined CSI feedback manner.

可选地，该处理单元，具体用于：Optionally, the processing unit is specifically configured to:

对该CSI反馈配置组中的每个CSI反馈配置进行参考信号接收功率RSRP测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置；或者The reference signal received power RSRP measurement is performed on each CSI feedback configuration in the CSI feedback configuration group, and the CSI feedback configuration corresponding to the determined one or more RSRP median RSRPs is determined as the optimal in the CSI feedback configuration group. CSI feedback configuration; or

对该CSI反馈配置组中的每个CSI反馈配置进行信道质量指示CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组 CSI反馈配置组中最优的CSI反馈配置；或者Performing channel quality indicator CQI estimation for each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs as the most The optimal CSI feedback configuration in the CSI feedback configuration group; or

可选地，该确定单元，具体用于：Optionally, the determining unit is specifically configured to:

根据该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations in the CSI feedback configuration group, the CSI feedback configuration corresponding to the CSI feedback configuration group; or

根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式；或者 Determining, according to the feedback mode indication information included in the trigger signaling of the received aperiodic CSI feedback, the CSI feedback mode corresponding to the CSI feedback configuration group; or

该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由该网络设备配置；或者The number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is configured by the network device; or

可选地，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中。 Optionally, the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group.

处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:

根据该确定的CSI反馈方式进行CSI测量和反馈；Performing CSI measurement and feedback according to the determined CSI feedback manner;

收发机，用于在处理器的控制下接收和发送数据。A transceiver for receiving and transmitting data under the control of a processor.

可选地，该处理器，具体用于：Optionally, the processor is specifically configured to:

对该CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的传输块尺寸TBsize，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。Performing CSI measurement on each CSI feedback configuration in the CSI feedback configuration group, and obtaining a transport block size TBsize corresponding to each CSI feedback configuration according to the CSI measurement result, and correspondingly determining one or more TBsizes having the largest median value of TBsize CSI feedback configuration as the set of CSI feedback Set the optimal CSI feedback configuration in the group.

根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，其中，该CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。Determining, according to the feedback mode of the CSI feedback configuration group, a CSI inverse corresponding to the CSI feedback configuration group The feed mode, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback.

若该CSI反馈配置组的反馈模式为周期CSI反馈，则确定该CSI反馈配置组对应的CSI反馈方式为第一反馈方式，第一反馈方式是指反馈该CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者 If the feedback mode of the CSI feedback configuration group is periodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the first feedback mode, and the first feedback manner refers to feeding back all CSI feedback configurations in the CSI feedback configuration group. Corresponding CSI; or

本公开实施例提供一种终端，包括处理器和收发机，其中，An embodiment of the present disclosure provides a terminal, including a processor and a transceiver, where

确定所述CSI反馈配置组对应的CSI反馈方式；Determining a CSI feedback mode corresponding to the CSI feedback configuration group;

根据所述确定的CSI反馈方式进行CSI测量和反馈；Performing CSI measurement and feedback according to the determined CSI feedback manner;

本公开实施例中，网络设备向终端指示出用于CSI反馈的CSI反馈配置组，终端接收到该CSI反馈配置组之后，确定出该CSI反馈配置组对应的CSI反馈方式，从而实现了终端根据网络设备所配置的CSI反馈配置组进行CSI测量和反馈的目的，进而实现了终端同时支持网络设备FD-MIMO和非FD-MIMO两种模式下的CSI的反馈方式的目的。In the embodiment of the present disclosure, the network device indicates the CSI feedback configuration group for the CSI feedback to the terminal. After receiving the CSI feedback configuration group, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group, thereby implementing the terminal according to the CSI feedback configuration group. The CSI feedback configuration group configured by the network device performs the purpose of CSI measurement and feedback, thereby achieving the purpose of the terminal supporting the CSI feedback mode of the network device FD-MIMO and non-FD-MIMO modes.

附图说明DRAWINGS

为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings will be briefly described in the description of the embodiments, and the accompanying drawings in the following description are only Those skilled in the art can also obtain other drawings based on these drawings without paying for inventive labor.

图1a为现有技术中水平排列的双极化天线示意图；1a is a schematic diagram of a horizontally arranged dual-polarized antenna in the prior art;

图1b为现有技术中水平排列的线阵天线示意图；FIG. 1b is a schematic diagram of a horizontally arranged linear array antenna in the prior art; FIG.

图1c为现有技术中水平和垂直二维排列的双极化天线示意图；1c is a schematic diagram of a dual-polarized antenna arranged horizontally and vertically in a two-dimensional arrangement in the prior art;

图1d为现有技术中水平和垂直二维排列的线阵天线示意图；1d is a schematic diagram of a linear array antenna arranged horizontally and vertically in a prior art;

图2为本公开实施例提供的终端侧实现的一种信道状态信息反馈方法流程示意图；FIG. 2 is a schematic flowchart of a channel state information feedback method implemented by a terminal side according to an embodiment of the present disclosure;

图2a示例性示出了本公开实施例提供的一种终端反馈位置信息和CSI的时序示意图； FIG. 2 is a timing diagram of terminal feedback position information and CSI provided by an embodiment of the present disclosure;

图2b示例性示出了本公开实施例提供的另一种终端反馈位置信息和CSI的时序示意图；FIG. 2b is a timing diagram showing another terminal feedback position information and CSI provided by an embodiment of the present disclosure;

图3为本公开实施例提供的网络设备实现的一种信道状态信息反馈方法；FIG. 3 is a channel state information feedback method implemented by a network device according to an embodiment of the present disclosure;

图4为本公开实施例提供一种终端的结构示意图；FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

图5为本公开实施例提供的一种网络设备的结构示意图；FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

图6为本公开实施例提供另一种终端的结构示意图；FIG. 6 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure;

图7为本公开实施例提供的另一种网络设备的结构示意图。FIG. 7 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.

具体实施方式detailed description

为了使本公开的目的、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本公开进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.

本公开实施例中的CSI反馈方式包含第一反馈方式和第二反馈方式；第一反馈方式是指反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；第二反馈方式是指从该CSI反馈配置组中选择最优CSI反馈配置，并反馈基于该CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。除了上述“第一反馈方式”和“第二反馈方式”之外，本公开实施例中的CSI反馈方式也可为其它反馈方式，举例来说，可反馈基于几个CSI反馈配置进行测量得到的CSI。The CSI feedback mode in the embodiment of the present disclosure includes a first feedback mode and a second feedback mode. The first feedback mode refers to feedback CSI measured based on all CSI feedback configurations in the CSI feedback configuration group. The second feedback mode is Refers to selecting an optimal CSI feedback configuration from the CSI feedback configuration group, and feeding back CSI measured based on the optimal CSI feedback configuration in the CSI feedback configuration group, and the optimal CSI feedback configuration is configured in the CSI feedback configuration group. Location information. In addition to the foregoing “first feedback mode” and “second feedback mode”, the CSI feedback mode in the embodiment of the present disclosure may also be other feedback modes, for example, feedback may be measured based on several CSI feedback configurations. CSI.

上述两种反馈方式中，由于第一反馈方式需要反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI，因此，第一反馈方式开销较大，且对于终端而言复杂度较高，效率低于第二反馈方式。In the above two feedback modes, the first feedback mode needs to feed back the CSI measured based on all the CSI feedback configurations in the CSI feedback configuration group. Therefore, the first feedback mode has a large overhead and is more complicated for the terminal. High, the efficiency is lower than the second feedback method.

在LTE***中为了支持多点协作(Coordinated Multi-point，CoMP)，引入了CSI进程的概念。每个CSI进程可以对应一个NZP CSI-RS配置和一个干扰测量资源(interference measurement resource，IMR)配置，终端基于其中的NZP CSI-RS进行信道测量，并用相应的IMR进行干扰测量，从而得到并反馈每个进程相应的CSI。每个LTE终端最多可以配置3个CSI进程用于CSI反馈。终端的CSI反馈可以基于物理上行链路控制信道(Physical Uplink Control CHannel，PUCCH)进行周期CSI反馈，或者基于物理上行共享信道(Physical Uplink Shared CHannel，PUSCH)进行非周期CSI反馈。对于非周期的PUSCH反馈，网络设备可以触发终端上报某个CSI进程集合中的每个CSI进程对应的CSI。其中，CSI进程集合通过高层信令预先配置给终端，而触发过程通过下行控制信息(Downlink Control Information，简称DCI)来实现。通过配置多个CSI进程集合，也可以让终端反馈不同的垂直赋形向量赋形后的多个CSI-RS对应的CSI。本公开实施例中一个CSI反馈配置组包括一个或多个CSI反馈配置，一个CSI反馈配置组也可包括一个或多个CSI进程，此时CSI进程与CSI反馈配置为对应关系。另一方面，本公开实施例中一个CSI反馈配置组也可定义为一个CSI进程，一个反馈配置组包括多个CSI反馈配置时，一个CSI进程也可包括多个CSI反馈配置，此时CSI进程与CSI反馈配置组为一一对应关系。为了描述方便，本公开实施例中以一个CSI反馈配置组可包括一个或多个CSI进程为例进行介绍。In order to support Coordinated Multi-point (CoMP) in the LTE system, the concept of a CSI process is introduced. Each CSI process can be configured with an NZP CSI-RS configuration and an interference measurement resource (IMR). The terminal performs channel measurement based on the NZP CSI-RS, and performs interference measurement with the corresponding IMR, thereby obtaining and feeding back. The corresponding CSI for each process. A maximum of three CSI processes can be configured for each LTE terminal for CSI feedback. The CSI feedback of the terminal can be based on a physical uplink control channel (Physical Uplink) Control CHannel, PUCCH) performs periodic CSI feedback, or performs aperiodic CSI feedback based on a Physical Uplink Shared CHannel (PUSCH). For a non-periodic PUSCH feedback, the network device may trigger the terminal to report the CSI corresponding to each CSI process in a certain CSI process set. The CSI process set is pre-configured to the terminal through the high-layer signaling, and the triggering process is implemented by using Downlink Control Information (DCI). By configuring multiple CSI process sets, the terminal can also feed back CSIs corresponding to multiple CSI-RSs that are shaped by different vertical shaping vectors. In the embodiment of the disclosure, one CSI feedback configuration group includes one or more CSI feedback configurations, and one CSI feedback configuration group may also include one or more CSI processes, where the CSI process and the CSI feedback are configured as corresponding relationships. On the other hand, in the embodiment of the present disclosure, one CSI feedback configuration group may also be defined as one CSI process. When one feedback configuration group includes multiple CSI feedback configurations, one CSI process may also include multiple CSI feedback configurations. It has a one-to-one correspondence with the CSI feedback configuration group. For convenience of description, in the embodiment of the present disclosure, one CSI feedback configuration group may include one or more CSI processes as an example.

图2示出了本公开实施例提供的终端侧实现的一种信道状态信息反馈方法，包括以下步骤：FIG. 2 is a schematic diagram of a channel state information feedback method implemented by a terminal side according to an embodiment of the present disclosure, including the following steps:

步骤201，接收网络设备指示的用于CSI反馈的CSI反馈配置组；Step 201: Receive a CSI feedback configuration group for CSI feedback indicated by the network device.

步骤202，确定该CSI反馈配置组对应的CSI反馈方式；Step 202: Determine a CSI feedback mode corresponding to the CSI feedback configuration group.

步骤203，根据该确定的CSI反馈方式进行CSI测量和反馈。Step 203: Perform CSI measurement and feedback according to the determined CSI feedback manner.

上述步骤201中的网络设备指示终端用于CSI反馈的CSI反馈配置组的指示信息通常通过高层信令来发送，即，网络设备可通过高层信令向终端配置用于CSI反馈的CSI反馈配置组。The indication information of the CSI feedback configuration group used by the network device in the foregoing step 201 for the CSI feedback is usually sent by the high layer signaling, that is, the network device can configure the CSI feedback configuration group for the CSI feedback to the terminal through the high layer signaling. .

CSI反馈配置组具有以下几种特征中的一种或组合：The CSI feedback configuration group has one or a combination of the following characteristics:

-网络设备指示的用于CSI反馈的CSI反馈配置组的数量为一个或多个。例如，网络设备可以配置三个CSI反馈配置组。 - The number of CSI feedback configuration groups indicated by the network device for CSI feedback is one or more. For example, a network device can configure three CSI feedback configuration groups.

-一个CSI反馈配置组中包含一个或多个CSI反馈配置，一个CSI反馈配置可以是一个CSI进程，或者一个NZP CSI-RS(其中，NZP是Non-Zero Power的英文简称，即非零功率；CSI-RS是Channel State Information Reference Signal的英文简称，即信道状态信息参考信号)资源配置，或者一个其它用于下行测量和CSI反馈的信号配置。例如，每个CSI反馈配置组包含四个NZP CSI-RS资源配置。- One CSI feedback configuration group includes one or more CSI feedback configurations, one CSI feedback configuration may be one CSI process, or one NZP CSI-RS (where NZP is the English abbreviation of Non-Zero Power, ie non-zero power; The CSI-RS is the English abbreviation of the Channel State Information Reference Signal, that is, the channel state information reference signal) resource configuration, or one other signal configuration for downlink measurement and CSI feedback. For example, each CSI feedback configuration group contains four NZP CSI-RS resource configurations.

-CSI反馈配置组中包含与该CSI反馈配置组中的所有CSI反馈配置关联的配置信息。举例来说，CSI反馈配置组中包含多个NZP CSIRS资源配置之外，还包括该多个NZP CSIRS资源配置共同关联的IMR配置信息。- The CSI feedback configuration group contains configuration information associated with all CSI feedback configurations in the CSI feedback configuration group. For example, the CSI feedback configuration group includes a plurality of NZP CSIRS resource configurations, and further includes IMR configuration information that is commonly associated with the multiple NZP CSIRS resource configurations.

-多载波情况下，网络设备为每个载波对应配置一个CSI反馈配置组；或者网络设备为所有载波对应配置一个CSI反馈配置组。- In the case of multiple carriers, the network device configures one CSI feedback configuration group for each carrier; or the network device configures one CSI feedback configuration group for all carriers.

-不同CSI反馈配置中包含的NZP CSI-RS可以采用不同的赋形向量进行波束赋形。- The NZP CSI-RS included in different CSI feedback configurations can be beamformed with different shaped vectors.

上述步骤202中，终端确定出的反馈方式可能是上述第一反馈方式，也可能是上述第二反馈方式。In the foregoing step 202, the feedback manner determined by the terminal may be the first feedback manner or the second feedback manner.

具体地，终端确定CSI反馈配置组对应的CSI反馈方式，包含以下几种：Specifically, the terminal determines a CSI feedback manner corresponding to the CSI feedback configuration group, and includes the following types:

方式一，根据CSI反馈配置组中包含的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式。In the first mode, the CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the number of CSI feedback configurations included in the CSI feedback configuration group.

可选地，该方式一中，若CSI反馈配置组中包含一个CSI反馈配置，则确定针对该CSI反馈配置组采用第一反馈方式。或者，若CSI反馈配置组中包含多个CSI反馈配置，则确定针对该CSI反馈配置组采用第二反馈方式。Optionally, in the first mode, if the CSI feedback configuration group includes a CSI feedback configuration, it is determined that the first feedback mode is adopted for the CSI feedback configuration group. Alternatively, if the CSI feedback configuration group includes multiple CSI feedback configurations, it is determined that the second feedback mode is adopted for the CSI feedback configuration group.

方式二，根据CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式。In the second mode, the CSI feedback configuration corresponding to the CSI feedback configuration group is determined according to the number of CSI feedback configurations in the CSI feedback configuration group.

可选地，上述方式二中，若针对该CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对该CSI反馈配置组采用第一反馈方式，否则确定针对该CSI反馈配置组采用第二反馈方式。 Optionally, in the foregoing manner, if the CSI feedback is required for all the CSI feedback configurations included in the CSI feedback configuration group, determining that the first feedback mode is adopted for the CSI feedback configuration group, otherwise determining the CSI feedback configuration for the CSI feedback configuration group. The group uses the second feedback method.

可选地，上述方式二中，可以通过以下三种方式(方式a1、方式a2和方式a3)中的一种确定出CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量：Optionally, in the foregoing manner 2, the number of CSI feedback configurations that need to perform CSI feedback in the CSI feedback configuration group may be determined by one of the following three modes: mode a1, mode a2, and mode a3:

方式a1，CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量是预先约定的。举例来说，可通过标准预先定义，或者通过网络设备和终端通过其它方式预先预定。这种情况下，终端可根据上述预先约定的内容确定CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。In mode a1, the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is pre-agreed. For example, it may be pre-defined by standards or pre-scheduled by other means through network devices and terminals. In this case, the terminal may determine the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback according to the foregoing pre-agreed content.

方式a2，CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由网络设备配置。可选地，CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量作为该CSI反馈配置组的参数可预先指示给终端，比如，网络设备指示的用于CSI反馈的CSI反馈配置组还包括该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。这种情况下，终端可根据网络设备配置的信息，确定CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。In mode a2, the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is configured by the network device. Optionally, the number of the CSI feedback configuration in the CSI feedback configuration group that needs to be used for the CSI feedback may be previously indicated to the terminal as a parameter of the CSI feedback configuration group. For example, the CSI feedback configuration group for CSI feedback indicated by the network device further includes The number of CSI feedback configurations in the CSI feedback configuration group that require CSI feedback. In this case, the terminal may determine the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback according to the information configured by the network device.

方式a3，CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由网络设备通过非周期CSI反馈的触发信令中包含的指示信息进行指示。举例来说，在触发信令中通过一比特的信息指示出该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。In the mode a3, the number of CSI feedback configurations that need to be subjected to CSI feedback in the CSI feedback configuration group is indicated by the indication information included in the trigger signaling of the aperiodic CSI feedback by the network device. For example, the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is indicated by one bit of information in the trigger signaling.

方式三，根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式。举例来说，在触发信令中通过一比特的信息指示出该CSI反馈配置组对应的CSI反馈方式为第一反馈方式还是第二反馈方式。In the third manner, the CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode indication information included in the trigger signaling of the received aperiodic CSI feedback. For example, the CSI feedback mode corresponding to the CSI feedback configuration group is the first feedback mode or the second feedback mode.

方式四，根据该CSI反馈配置组对应的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息。In the fourth method, the CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode indication information corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information.

可选地，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中。即CSI反馈配置组对应的反馈方式作为该CSI反馈配置组的参数可预先指示给终端，即网络设备指示的用于CSI反馈的CSI反馈配置组还包括该CSI反馈配置组对应的反馈方式。Optionally, the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group. That is, the feedback mode corresponding to the CSI feedback configuration group may be instructed to the terminal as a parameter of the CSI feedback configuration group, that is, the CSI feedback configuration group for the CSI feedback indicated by the network device further includes a feedback manner corresponding to the CSI feedback configuration group.

方式五，根据CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的 CSI反馈方式，其中，该CSI反馈配置组的反馈模式包含周期CSI反馈和非周期CSI反馈。In the fifth manner, the CSI feedback configuration group is determined according to the feedback mode of the CSI feedback configuration group. The CSI feedback mode, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback.

可选地，上述方式五中，若该CSI反馈配置组的反馈模式为周期CSI反馈，则确定该CSI反馈配置组对应的CSI反馈方式为第一反馈方式。或者，若该CSI反馈配置组的反馈模式为非周期CSI反馈，则确定该CSI反馈配置组对应的CSI反馈方式为第二反馈方式。Optionally, in the foregoing manner, if the feedback mode of the CSI feedback configuration group is periodic CSI feedback, determining that the CSI feedback mode corresponding to the CSI feedback configuration group is the first feedback mode. Or, if the feedback mode of the CSI feedback configuration group is aperiodic CSI feedback, determining that the CSI feedback mode corresponding to the CSI feedback configuration group is the second feedback mode.

上述确定CSI反馈配置组对应的CSI反馈方式的五种方式中，方式一、方式二和方式五属于隐式指示方式，方式三和方式四属于显示指示方式。Among the five methods for determining the CSI feedback mode corresponding to the CSI feedback configuration group, the first mode, the second mode, and the fifth mode belong to the implicit indication mode, and the third mode and the fourth mode belong to the display indication mode.

上述步骤203中，若确定出的CSI反馈配置组对应的CSI反馈方式为第一反馈方式，则终端根据该第一反馈方式反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；若确定的CSI的反馈方式为第二反馈方式，则终端根据该第二反馈方式从该CSI反馈配置组中选择最优CSI反馈配置，并反馈基于该CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI和该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。终端可以采用周期CSI反馈，或者采用非周期CSI反馈。In the foregoing step 203, if the CSI feedback mode corresponding to the CSI feedback configuration group is the first feedback mode, the terminal feeds back the CSI measured based on all the CSI feedback configurations in the CSI feedback configuration group according to the first feedback mode. If the determined feedback mode of the CSI is the second feedback mode, the terminal selects an optimal CSI feedback configuration from the CSI feedback configuration group according to the second feedback manner, and feeds back the optimal CSI feedback based on the CSI feedback configuration group. The CSI obtained by the measurement and the position information of the optimal CSI feedback configured in the CSI feedback configuration group are configured. The terminal may use periodic CSI feedback or adopt non-periodic CSI feedback.

如果终端确定采用上述第二反馈方式进行CSI测量和反馈，则从CSI反馈配置组中选择最优CSI反馈配置，包括以下方式b1、方式b2和方式b3中的一种：If the terminal determines to perform CSI measurement and feedback by using the foregoing second feedback manner, the optimal CSI feedback configuration is selected from the CSI feedback configuration group, including one of the following manners b1, b2, and b3:

方式b1，对CSI反馈配置组中的每个CSI反馈配置进行参考信号接收功率(Reference Signal Receiving Power，RSRP)测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。In the mode b1, the reference signal receiving power (RSRP) measurement is performed on each CSI feedback configuration in the CSI feedback configuration group, and the CSI feedback configuration corresponding to the determined RSRP with the largest median value of one or more RSRPs is determined as The optimal CSI feedback configuration in the set of CSI feedback configuration groups.

方式b2，对CSI反馈配置组中的每个CSI反馈配置进行信道质量指示(Channels quality indication，CQI)估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置。In the mode b2, a channel quality indication (CQI) estimation is performed on each CSI feedback configuration in the CSI feedback configuration group, and the CSI feedback configuration corresponding to the CQI with the largest median value of the one or more CQIs determined is the most The CSI feedback configures the optimal CSI feedback configuration in the group.

方式b3，对CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的传输块尺寸(Transport Block size，简称TBsize)，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。In the mode b3, the CSI measurement is performed on each CSI feedback configuration in the CSI feedback configuration group, and the transport block size (Transport Block size, TBsize) corresponding to each CSI feedback configuration is obtained according to the CSI measurement result, and one or more determined TBsize corresponding to the largest median of multiple TBsizes The CSI feedback configuration is used as the optimal CSI feedback configuration in the set of CSI feedback configuration groups.

如果终端确定采用上述第二反馈方式，则在终端采用第二反馈方式反馈最优的CSI反馈配置在该CSI反馈配置组中的位置信息时，该位置信息可有多种表示方式，以下介绍两种优选地表示方式：If the terminal determines that the second feedback mode is adopted, when the terminal uses the second feedback mode to feed back the optimal CSI feedback to configure the location information in the CSI feedback configuration group, the location information may have multiple representation manners. Preferred representation:

第一种位置表示方式：最优的CSI反馈配置在该CSI反馈配置组中的位置信息具体是指最优的CSI反馈配置在该CSI反馈配置组中的索引。即，终端上报最优的CSI反馈配置在该CSI反馈配置组中的索引。The first type of location representation: the location information of the optimal CSI feedback configuration in the CSI feedback configuration group refers specifically to the index of the optimal CSI feedback configuration in the CSI feedback configuration group. That is, the terminal reports an index of the optimal CSI feedback configuration in the CSI feedback configuration group.

第二种位置表示方式：采用位图(bitmap)的方式，即每个CSI反馈配置组对应一个位置序列，该CSI反馈配置组中的每个CSI反馈配置在该位置序列中对应一个位置，即该CSI反馈配置组中的每个CSI反馈配置在该位置序列中对应一个比特位。最优的CSI反馈配置在该CSI反馈配置组中的位置信息具体是指最优的CSI反馈配置在该CSI反馈配置组的位置序列上对应位置的比特值。举例来说，最优的CSI反馈配置在该CSI反馈配置组的位置序列上对应位置的比特值设置为1，该位置序列的其它位置的比特值设置为0，此时可通过该位置序列上的比特值确定出最优的CSI反馈配置在该CSI反馈配置组的位置信息。The second location is represented by a bitmap, that is, each CSI feedback configuration group corresponds to a location sequence, and each CSI feedback configuration in the CSI feedback configuration group corresponds to a location in the sequence of locations, that is, Each CSI feedback configuration in the CSI feedback configuration group corresponds to one bit in the sequence of locations. The location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to the bit value of the corresponding location of the optimal CSI feedback configuration in the position sequence of the CSI feedback configuration group. For example, the optimal CSI feedback configuration is set to 1 in the position sequence of the position sequence of the CSI feedback configuration group, and the bit value of the other position of the position sequence is set to 0, and the sequence of the position can be adopted at this time. The bit value determines the location information of the optimal CSI feedback configuration in the CSI feedback configuration group.

针对周期CSI反馈，若确定的CSI反馈方式为第二反馈方式时，则需从CSI反馈配置组中选择最优CSI反馈配置，并周期性反馈基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI，以及周期性反馈所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。其中，终端上报的CSI包括秩指示(Rank Indicator，简称RI)、预编码矩阵指示(Pre-coding Matrix Indicator，简称PMI)、CQI中的任一项或任几项。For the periodic CSI feedback, if the determined CSI feedback mode is the second feedback mode, the optimal CSI feedback configuration needs to be selected from the CSI feedback configuration group, and the optimal CSI feedback based on the CSI feedback configuration group is periodically fed back. The CSI obtained by the measurement is configured, and the location information of the optimal CSI feedback configured in the CSI feedback configuration group is periodically fed back. The CSI reported by the terminal includes any one or any of a Rank Indicator (RI), a Pre-coding Matrix Indicator (PMI), and a CQI.

为了使第二反馈方式下所反馈的CSI中的RI可以根据所反馈的最新的位置信息进行及时更新，从而避免所反馈的RI与所反馈的位置信息不匹配时对FD-MIMO性能造成影响的问题，针对第二反馈方式，本公开实施例中提供以下优选方案：The RI in the CSI fed back in the second feedback mode may be updated in time according to the latest location information that is fed back, so as to avoid affecting the FD-MIMO performance when the fed back RI does not match the fed back location information. The problem is that, for the second feedback mode, the following preferred solution is provided in the embodiment of the present disclosure:

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含RI，则位置信息的反馈周期为RI的反馈周期的N倍，且位置信息的PUCCH资源位置与RI 的PUCCH资源位置相同，其中，N为正整数。Optionally, if the determined CSI feedback mode is the second feedback mode, and the feedback CSI based on the optimal CSI feedback configuration in the CSI feedback configuration group is included in the CSI, the feedback period of the location information is the feedback of the RI. N times the period, and the location of the PUCCH resource location and RI The PUCCH resource locations are the same, where N is a positive integer.

具体来说，当N为1时，即位置信息的PUCCH资源位置与RI的PUCCH资源位置完全相同，此时，第二反馈方式下所反馈的位置信息与所反馈的CSI中的RI始终一起进行反馈。当N不为1时，比如N为4，且用T表示第二反馈方式下所反馈的CSI中的RI的反馈周期，则第二反馈方式下反馈位置信息的周期为4T。即在两次一起反馈位置信息和RI之间，还需单独反馈三次RI。Specifically, when N is 1, the location of the PUCCH resource of the location information is exactly the same as the location of the PUCCH resource of the RI. At this time, the location information fed back in the second feedback mode is always performed together with the RI in the fed back CSI. Feedback. When N is not 1, for example, N is 4, and T represents a feedback period of the RI in the CSI fed back in the second feedback mode, and the period of the feedback position information in the second feedback mode is 4T. That is, between the feedback position information and the RI twice, it is necessary to separately feed back three times of RI.

也就是说，在第二反馈方式下，需反馈位置信息时，必须同时反馈RI，而RI除了与位置信息一起反馈之外，RI也可单独反馈。That is to say, in the second feedback mode, when the position information needs to be fed back, the RI must be fed back at the same time, and the RI can be separately fed back in addition to the feedback together with the position information.

具体来说，当在同一个子帧中反馈RI和位置信息时，为了节省信令开销，可对需反馈的位置信息与RI进行联合编码或者级联，得到与该需反馈的位置信息和RI对应的新的指示信息，比如新的编码，之后将该新的指示信息进行反馈，网络设备接收到该新的指示信息之后，可以根据该联合编码的规则或者级联规则，确定出该新的指示信息对应的位置信息和RI。Specifically, when the RI and the location information are fed back in the same subframe, in order to save the signaling overhead, the location information to be fed back and the RI may be jointly encoded or concatenated to obtain the location information and the RI corresponding to the feedback. New indication information, such as a new code, and then feedback the new indication information. After receiving the new indication information, the network device may determine the new indication according to the joint coding rule or the cascading rule. Location information and RI corresponding to the information.

可选地，在同一个子帧中反馈位置信息和RI时，RI是根据该同一个子帧中反馈的位置信息对应的最优的CSI反馈配置进行测量得到的。如此，便可确保在同一个子帧中所反馈的RI与在该子帧中所反馈的位置信息相匹配，从而避免影响FD-MIMO的性能。Optionally, when the location information and the RI are fed back in the same subframe, the RI is measured according to an optimal CSI feedback configuration corresponding to the location information fed back in the same subframe. In this way, it can be ensured that the RI fed back in the same subframe matches the position information fed back in the subframe, thereby avoiding affecting the performance of FD-MIMO.

可选地，在不同子帧中反馈位置信息和RI时，所反馈的RI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。具体来说，当在两次反馈位置信息之间，单独反馈RI时，该RI需要基于最近反馈的位置信息，“最近反馈的位置信息”具体是指反馈位置信息的时间点距离当前次反馈RI的时间点最为接近的某次反馈的位置信息，即时间上最新的反馈的位置信息，该RI为基于该时间上最新的反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到。从而确保了在不同一子帧中反馈RI和位置信息时，所反馈的RI与所反馈的最新的位置信息相匹配，从而避免影响FD-MIMO的性能。 Optionally, when the location information and the RI are fed back in different subframes, the fed back RI is obtained by performing CSI measurement according to an optimal CSI feedback configuration corresponding to the most recently fed back location information. Specifically, when the RI is separately fed back between the two feedback position information, the RI needs to be based on the most recently fed back position information, and the “recently fed back position information” specifically refers to the time point of the feedback position information from the current feedback RI. The position information of the feedback that is closest to the time point, that is, the position information of the latest feedback in time, the RI is obtained by performing CSI measurement based on the optimal CSI feedback configuration corresponding to the position information of the latest feedback at the time. Thereby, it is ensured that when the RI and the position information are fed back in different subframes, the fed back RI matches the latest position information fed back, thereby avoiding affecting the performance of the FD-MIMO.

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含PMI和/或CQI，则所反馈的PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Optionally, if the determined CSI feedback mode is the second feedback mode, and the feedback CSI based on the optimal CSI feedback configuration in the CSI feedback configuration group is included in the CSI, the PMI and the CMII are fed back. The CQI is obtained by performing CSI measurement based on the optimal CSI feedback configuration corresponding to the recently fed back location information.

具体来说，若在不同子帧中反馈PMI和位置信息，或者在不同子帧中反馈CQI和位置信息，或者在不同子帧中反馈PMI、CQI和位置信息时，所反馈的PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。若在同一个子帧中反馈PMI和位置信息，或者在同一个子帧中反馈CQI和位置信息，或者在同一个子帧中反馈PMI、CQI和位置信息时，所反馈的PMI和/或CQI是根据该同一个子帧中反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Specifically, if the PMI and the location information are fed back in different subframes, or the CQI and location information are fed back in different subframes, or the PMI, CQI, and location information are fed back in different subframes, the fed PMI and/or The CQI is obtained by performing CSI measurement according to the optimal CSI feedback configuration corresponding to the recently fed back position information. If the PMI and the location information are fed back in the same subframe, or the CQI and location information are fed back in the same subframe, or the PMI, CQI, and location information are fed back in the same subframe, the PMI and/or CQI fed back is based on the The optimal CSI feedback configuration corresponding to the position information fed back in the same subframe is obtained by CSI measurement.

另一方面，若反馈的CSI中除RI之外的信息，比如PMI和/或CQI，在反馈时与所反馈的位置信息发生冲突，需要丢弃(drop)一些信息时，此时可丢弃CSI中除RI之外的信息，反馈CSI中的RI和位置信息。举例来说，在同一个子帧中发送PMI和/或CQI，以及RI和位置信息，此时由于该子帧中承载不了这么多信息，需要丢弃一些信息，此时则丢弃除RI和位置信息之外的CSI中的信息，即丢弃PMI和/或CQI。On the other hand, if the information other than the RI in the feedback CSI, such as the PMI and/or the CQI, conflicts with the feedback location information during the feedback, and some information needs to be dropped, the CSI may be discarded at this time. Information other than RI, which feeds back RI and location information in the CSI. For example, PMI and/or CQI, and RI and location information are sent in the same subframe. At this time, because the subframe does not carry so much information, some information needs to be discarded. At this time, the RI and the location information are discarded. The information in the external CSI, that is, the PMI and/or CQI are discarded.

本公开实施例通过上述方式为基于第二反馈方式进行周期性CSI反馈提供了优选方案，通过上述方案，可确保在在第二反馈方式下周期性反馈的RI与反馈的最近的位置信息相匹配，从而避免影响FD-MIMO的性能。The embodiment of the present disclosure provides a preferred solution for performing periodic CSI feedback based on the second feedback manner. The foregoing solution ensures that the RI periodically fed back in the second feedback mode matches the latest location information of the feedback. So as to avoid affecting the performance of FD-MIMO.

上述步骤203之后，网络设备接收到终端反馈的CSI，并基于该终端反馈的CSI进行下行数据传输，或者基于该终端反馈的CSI进行CSI反馈配置信息的更新。After the foregoing step 203, the network device receives the CSI fed back by the terminal, performs downlink data transmission based on the CSI fed back by the terminal, or performs CSI feedback configuration information update based on the CSI fed back by the terminal.

通过以上描述可以看出，一方面，网络设备可通过CSI反馈配置组以显示指示方式或隐式指示方式向终端指示出终端应采用的反馈方式，终端接收到CSI反馈配置组之后，确定出的该CSI反馈配置组对应的CSI反馈方式是网络设备所支持的CSI反馈方式，从而实现了终端根据网络设备所支持的CSI的反馈方式进行CSI测量和反馈的目的。As can be seen from the above description, on the one hand, the network device can indicate the feedback mode that the terminal should adopt to the terminal by using the CSI feedback configuration group to display the indication mode or the implicit indication mode. After the terminal receives the CSI feedback configuration group, the terminal determines the The CSI feedback mode corresponding to the CSI feedback configuration group is a CSI feedback mode supported by the network device, thereby implementing the CSI measurement and feedback according to the CSI feedback mode supported by the network device.

另一方面，终端同时支持网络设备FD-MIMO和非FD-MIMO两种模式下的CSI的反馈方式，进而可使网络设备基于反馈的CSI确定出的最优的垂直赋形向量，并使用该最优的垂直赋形向量进行波束赋形。比如，本公开实施例可以利用非周期CSI反馈进行多个组中最优NZP CSI-RS的选择，将各组最优的NZP CSI-RS配置用于后续的周期或者非周期CSI反馈，从而支持CoMP+FD-MIMO场景下的CSI反馈。On the other hand, the terminal supports both FD-MIMO and non-FD-MIMO modes of network equipment. The feedback mode of the CSI may further enable the network device to determine an optimal vertical shaping vector based on the feedback CSI, and use the optimal vertical shaping vector to perform beamforming. For example, the embodiment of the present disclosure may perform the selection of the optimal NZP CSI-RS in multiple groups by using the aperiodic CSI feedback, and configure the optimal NZP CSI-RS of each group for subsequent periodic or aperiodic CSI feedback, thereby supporting CSI feedback in a CoMP+FD-MIMO scenario.

再一方面，本公开的上述实施例具有较好的后向兼容性。具体来说，当CSI反馈配置组仅包含一个CSI反馈配置时，或者终端根据第一反馈方式反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI时，本公开实施例中终端的CSI反馈方式与现有技术中的反馈方式一致。In still another aspect, the above embodiments of the present disclosure have better backward compatibility. Specifically, when the CSI feedback configuration group includes only one CSI feedback configuration, or the terminal feeds back the CSI measured based on all CSI feedback configurations in the CSI feedback configuration group according to the first feedback manner, the terminal in the embodiment of the present disclosure The CSI feedback method is consistent with the feedback method in the prior art.

下面具体提供以下两个实施例对本公开实施例所提供的方法进行介绍。The following two embodiments are specifically provided below to introduce the methods provided by the embodiments of the present disclosure.

实施例一 Embodiment 1

网络设备通过高层信令指示终端用于周期CSI反馈的两个CSI反馈配置组，每个CSI反馈配置组包含一个或者多个NZP CSI-RS配置和一个IMR配置。每个CSI反馈配置组中的不同NZP CSI-RS采用不同的垂直赋形向量进行赋形。The network device indicates, by the high layer signaling, two CSI feedback configuration groups used by the terminal for periodic CSI feedback, and each CSI feedback configuration group includes one or more NZP CSI-RS configurations and one IMR configuration. Different NZP CSI-RSs in each CSI feedback configuration group are shaped using different vertical shaping vectors.

终端接收到该配置后，根据每个CSI反馈配置组中的NZP CSI-RS数量确定反馈方式，其中：After receiving the configuration, the terminal determines the feedback mode according to the number of NZP CSI-RSs in each CSI feedback configuration group, where:

如果一个配置组中只包含一个NZP CSI-RS，则终端基于该NZP CSI-RS和配置组中的IMR配置进行CSI测量和上报，终端上报的CSI包括RI、PMI、CQI中的任一项或任几项。If a configuration group includes only one NZP CSI-RS, the terminal performs CSI measurement and reporting based on the NZP CSI-RS and the IMR configuration in the configuration group, and the CSI reported by the terminal includes any one of RI, PMI, and CQI. Any of several items.

如果一个配置组中包含多个NZP CSI-RS，则终端需要从多个NZP CSI-RS选择一个最优的NZP CSI-RS用于CSI测量。例如，终端可以根据每个NZP CSI-RS测量得到的RSRP来选择最优NZP CSI-RS，并基于选择的NZP CSI-RS和配置组中的IMR配置进行CSI测量，并反馈测量得到的RI、PMI、CQI中的任一项或任几项，此外，还需要上报选择的NZP CSI-RS在配置组中所有NZP CSI-RS中的索引。If a configuration group contains multiple NZP CSI-RSs, the terminal needs to select an optimal NZP CSI-RS from multiple NZP CSI-RSs for CSI measurement. For example, the terminal may select an optimal NZP CSI-RS according to the RSRP measured by each NZP CSI-RS, and perform CSI measurement based on the selected NZP CSI-RS and the IMR configuration in the configuration group, and feed back the measured RI, Any one or more of the PMI and the CQI, in addition, the index of the selected NZP CSI-RS in all NZP CSI-RSs in the configuration group needs to be reported.

实施例二 Embodiment 2

网络设备通过高层信令指示终端用于非周期CSI反馈的三个CSI反馈配置组，每个CSI反馈配置组包含一个或多个NZP CSI-RS配置。其中，CSI 反馈配置组一和CSI反馈配置组二中，每个配置组对应一个传输点，且一个CSI反馈配置组内不同NZP CSI-RS资源采用不同的垂直赋形向量进行赋形。CSI反馈配置组3中，不同NZP CSI-RS资源配置对应不同的传输点。The network device indicates, by higher layer signaling, three CSI feedback configuration groups used by the terminal for aperiodic CSI feedback, and each CSI feedback configuration group includes one or more NZP CSI-RS configurations. Among them, CSI In the feedback configuration group 1 and the CSI feedback configuration group 2, each configuration group corresponds to one transmission point, and different NZP CSI-RS resources in one CSI feedback configuration group are shaped by different vertical shaping vectors. In the CSI feedback configuration group 3, different NZP CSI-RS resource configurations correspond to different transmission points.

网络设备同时为每个CSI反馈配置组配置相应的反馈方式。其中CSI反馈配置组一和CSI反馈配置组二采用第二反馈方式，CSI反馈配置组三采用第一反馈方式。各个CSI反馈配置组的反馈方式通过一比特信令指示，且与相应CSI反馈配置组的配置信息一起指示给终端。The network device configures corresponding feedback modes for each CSI feedback configuration group at the same time. The CSI feedback configuration group 1 and the CSI feedback configuration group 2 adopt the second feedback mode, and the CSI feedback configuration group 3 adopts the first feedback mode. The feedback mode of each CSI feedback configuration group is indicated by one-bit signaling and is indicated to the terminal together with the configuration information of the corresponding CSI feedback configuration group.

网络设备通过DCI触发终端进行非周期CSI反馈，所述触发信令包含两比特信息，指示的内容如表1所示：The network device performs aperiodic CSI feedback through the DCI triggering terminal, where the trigger signaling includes two bits of information, and the indicated contents are as shown in Table 1:

表1 触发信令包含两比特信息所指示的内容Table 1 Trigger signaling contains the content indicated by the two-bit information

两比特信息Two-bit information	两比特信息所指示的内容Content indicated by two-bit information
0000	反馈基于CSI反馈配置组一进行CSI测量所得到的CSIThe feedback is based on the CSI feedback configuration group CSI measured by CSI measurement
0101	反馈基于CSI反馈配置组二进行CSI测量所得到的CSIThe feedback is based on CSI feedback configuration group 2 for CSI measurement.
1010	反馈基于CSI反馈配置组三进行CSI测量所得到的CSIThe feedback is based on CSI feedback configuration group III for CSI measurement.
1111	不进行非周期CSI反馈Do not perform aperiodic CSI feedback

终端接收到触发信令后，针对每个CSI反馈配置组进行CSI测量和反馈，其中所述CSI反馈配置组的CSI测量和反馈方式根据为该配置组预先配置的反馈方式得到。例如，网络设备通过两比特信息“10”触发终端反馈基于CSI反馈配置组三进行CSI测量所得到的CSI，则终端需要分别基于CSI反馈配置组三中每个NZP CSI-RS进行CSI测量，并反馈基于CSI反馈配置组三进行CSI测量所得到的CSI。After receiving the trigger signaling, the terminal performs CSI measurement and feedback for each CSI feedback configuration group, where the CSI measurement and feedback mode of the CSI feedback configuration group is obtained according to a feedback manner preconfigured for the configuration group. For example, the network device triggers the terminal to feed back CSI obtained by performing CSI measurement based on the CSI feedback configuration group 3 by using the two-bit information “10”, and the terminal needs to perform CSI measurement according to each NZP CSI-RS in the CSI feedback configuration group III, respectively, and The feedback is based on the CSI obtained by CSI measurement by the CSI feedback configuration group 3.

网络设备接收终端反馈的非周期CSI，基于该终端反馈的CSI进行下行数据传输，或者基于该终端反馈的CSI进行CSI反馈配置信息的更新。举例来说，网络设备触发终端上报CSI反馈配置组一和CSI反馈配置组二中的最优NZP CSI-RS配置的索引，将得到的各组中最优的NZP CSI-RS配置作为CSI反馈配置组三中的CSI反馈配置，从而令终端后续只反馈各个传输点中最优的NZP CSI-RS配置对应的CSI。The network device receives the aperiodic CSI fed back by the terminal, performs downlink data transmission based on the CSI fed back by the terminal, or performs CSI feedback configuration information update based on the CSI fed back by the terminal. For example, the network device triggers the terminal to report the index of the optimal NZP CSI-RS configuration in the CSI feedback configuration group 1 and the CSI feedback configuration group 2, and obtains the optimal NZP CSI-RS configuration in each group as the CSI feedback configuration. The CSI feedback configuration in group 3, so that the terminal only feeds back the best among the various transmission points. The NZP CSI-RS configuration corresponds to the CSI.

实施例三 Embodiment 3

图2a示例性示出了本公开实施例提供的一种终端反馈位置信息和CSI的时序示意图，结合图2a进行如下介绍。基站通过高层信令指示终端用于周期CSI反馈的CSI反馈配置组(本公开实施例中CSI反馈配置组也可定义为CSI反馈配置集合)，CSI反馈配置组包含多个NZP CSI-RS配置和一个共同的IMR配置，其中不同NZP CSI-RS采用不同的垂直赋形向量进行赋形。FIG. 2 is a timing diagram of terminal feedback position information and CSI provided by an embodiment of the present disclosure, which is introduced as follows in conjunction with FIG. 2a. The CSI feedback configuration group used by the base station to indicate the periodic CSI feedback by the base station (the CSI feedback configuration group in the embodiment of the disclosure may also be defined as a CSI feedback configuration set), where the CSI feedback configuration group includes multiple NZP CSI-RS configurations and A common IMR configuration in which different NZP CSI-RSs are shaped using different vertical shaping vectors.

终端接收到该CSI反馈配置组后，从CSI反馈配置组中的多个NZP CSI-RS选择一个最优的NZP CSI-RS用于CSI测量。例如终端可以根据每个NZP CSI-RS测量得到的RSRP来选择最优NZP CSI-RS，并基于选择的NZP CSI-RS和配置组中的IMR配置进行CSI测量，得到RI、PMI和CQI。After receiving the CSI feedback configuration group, the terminal selects an optimal NZP CSI-RS for CSI measurement from multiple NZP CSI-RSs in the CSI feedback configuration group. For example, the terminal may select an optimal NZP CSI-RS according to the RSRP measured by each NZP CSI-RS, and perform CSI measurement based on the selected NZP CSI-RS and the IMR configuration in the configuration group to obtain RI, PMI, and CQI.

终端将选择的NZP CSI-RS在该CSI反馈配置组中所有NZP CSI-RS中的位置信息(比如索引)与基于该选择的最优NZP CSI-RS计算得到的RI一起上报给基站。如图2a所示，索引1与RI在时间(time)轴上的时间t11一起上报，索引2与RI在时间t17一起上报。同时，在终端上报索引1之后，在上报索引2之前，终端依次在时间t12、t13上报PMI和/或CQI，在时间t14单独上报RI，在时间t15、t16上报PMI和/或CQI，在时间t11至时间t17之间所上报的PMI和/或CQI，以及RI均是基于索引1在该CSI反馈配置组中对应的最优的CSI反馈配置进行测量得到的。终端在时间t17上报了索引2之后，终端再次上报的CSI中的信息则均是基于索引2在该CSI反馈配置组中对应的最优的CSI反馈配置进行测量得到的，如图2a中在时间t18时刻所上报的PMI和/或CQI则是基于索引2在该CSI反馈配置组中对应的最优的CSI反馈配置进行测量得到的。The terminal reports the location information (such as an index) in the NZP CSI-RS of the selected NZP CSI-RS to the base station along with the RI calculated based on the selected optimal NZP CSI-RS. As shown in Fig. 2a, index 1 is reported together with RI time t11 on the time axis, and index 2 and RI are reported together at time t17. At the same time, after the index is reported by the terminal, before reporting the index 2, the terminal reports the PMI and/or CQI at time t12 and t13, reports the RI separately at time t14, and reports the PMI and/or CQI at time t15 and t16. The PMI and/or CQI reported between t11 and time t17, and RI are all measured based on the corresponding optimal CSI feedback configuration of index 1 in the CSI feedback configuration group. After the terminal reports the index 2 at time t17, the information in the CSI reported by the terminal is measured based on the optimal CSI feedback configuration corresponding to the index 2 in the CSI feedback configuration group, as shown in FIG. 2a. The PMI and/or CQI reported at time t18 is measured based on the optimal CSI feedback configuration corresponding to index 2 in the CSI feedback configuration group.

实施例四 Embodiment 4

图2b示例性示出了本公开实施例提供的另一种终端反馈位置信息和CSI的时序示意图，结合图2b进行如下介绍。基站通过高层信令指示终端用于周期CSI反馈的CSI反馈配置组，该CSI反馈配置组包含多个CSI进程，每个CSI进程包含一个NZP CSI-RS配置和一个IMR配置。FIG. 2b exemplarily shows a timing diagram of another terminal feedback position information and CSI provided by an embodiment of the present disclosure, which is described below in conjunction with FIG. 2b. The base station indicates the terminal for use by the high layer signaling The CSI feedback configuration group of the CSI feedback, the CSI feedback configuration group includes multiple CSI processes, and each CSI process includes one NZP CSI-RS configuration and one IMR configuration.

终端接收到该CSI反馈配置组后，从该CSI反馈配置组的多个CSI进程中选择最优的一个CSI进程用于CSI测量。比如终端可以根据每个CSI进程行CQI估计，选择其中最高的CQI对应CSI进程作为最优的CSI进程，并基于选择的最优CSI进程进行CSI测量，得到RI和CQI。After receiving the CSI feedback configuration group, the terminal selects an optimal one of the multiple CSI processes of the CSI feedback configuration group for CSI measurement. For example, the terminal may perform CSI estimation according to each CSI process, select the CSI corresponding CSI process as the optimal CSI process, and perform CSI measurement based on the selected optimal CSI process to obtain RI and CQI.

终端将选择的CSI进程在该CSI反馈配置组中所有CSI进程中的位置信息(比如索引)与基于该选择的最优的CSI进程计算得到的RI一起上报给基站。如图2b所示，索引1与RI在时间t21一起上报，索引2与RI在时间t24一起上报，索引3与RI在时间t27一起上报。同时，在终端上报索引1之后，在上报索引2之前，终端依次在时间t22、t23上报CQI，在时间t21至时间t24之间所上报的CQI均是基于索引1在该CSI反馈配置组中对应的最优的CSI进程进行测量得到的。在终端上报索引2之后，在上报索引3之前，终端依次在时间t25、t26上报CQI，在时间t24至时间t27之间所上报的CQI均是基于索引2在该CSI反馈配置组中对应的最优的CSI进程进行测量得到的。终端在时间t27上报了索引3之后，终端再次上报的CSI中的信息则均是基于索引3在该CSI反馈配置组中对应的最优的CSI进程进行测量得到的，图2b中在时间t28时刻所上报的CQI则是基于索引3在该CSI反馈配置组中对应的最优的CSI进程进行测量得到的。The terminal reports the location information (such as an index) in the CSI process in the CSI feedback configuration group to the base station together with the RI calculated based on the selected optimal CSI process. As shown in FIG. 2b, index 1 and RI are reported together at time t21, index 2 and RI are reported together at time t24, and index 3 and RI are reported together at time t27. At the same time, after the index is reported by the terminal, the terminal reports the CQI at time t22 and t23 before the index 2 is reported, and the CQI reported between the time t21 and the time t24 is based on the index 1 in the CSI feedback configuration group. The optimal CSI process is measured. After the index 2 is reported by the terminal, before reporting the index 3, the terminal sequentially reports the CQI at times t25 and t26, and the CQIs reported between time t24 and time t27 are based on the index 2 in the CSI feedback configuration group. The excellent CSI process is measured. After the terminal reports the index 3 at time t27, the information in the CSI reported by the terminal is measured based on the optimal CSI process corresponding to the index 3 in the CSI feedback configuration group, and time t28 in FIG. 2b. The reported CQI is obtained based on the index 3 corresponding to the optimal CSI process in the CSI feedback configuration group.

从上述内容可以看出，网络设备向终端指示出用于CSI反馈的CSI反馈配置组，终端接收到该CSI反馈配置组之后，确定出该CSI反馈配置组对应的CSI反馈方式，从而实现了终端根据网络设备所配置的CSI反馈配置组进行CSI测量和反馈的目的，进而实现了终端同时支持网络设备FD-MIMO和非FD-MIMO两种模式下的CSI的反馈方式的目的。As can be seen from the above, the network device indicates to the terminal a CSI feedback configuration group for the CSI feedback. After receiving the CSI feedback configuration group, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group, thereby implementing the terminal. According to the CSI feedback configuration group configured by the network device, the purpose of performing CSI measurement and feedback is to achieve the purpose of supporting the CSI feedback mode of the network device FD-MIMO and non-FD-MIMO modes.

基于相同构思，图3示出了本公开实施例提供的网络设备实现的一种信道状态信息反馈方法，包括以下步骤： Based on the same concept, FIG. 3 illustrates a channel state information feedback method implemented by a network device according to an embodiment of the present disclosure, including the following steps:

步骤301，网络设备向终端指示用于CSI反馈的CSI反馈配置组；Step 301: The network device indicates, to the terminal, a CSI feedback configuration group for CSI feedback.

步骤302，网络设备接收该终端反馈的基于确定出的该CSI反馈配置组对应的CSI反馈方式进行CSI测量所得到的CSI。Step 302: The network device receives the CSI obtained by the CSI measurement based on the determined CSI feedback manner corresponding to the CSI feedback configuration group that is fed back by the terminal.

上述步骤301中的网络设备指示终端用于CSI反馈的CSI反馈配置组的指示信息通常通过高层信令来来发送，即，网络设备可通过高层信令向终端配置用于CSI反馈的CSI反馈配置组。网络设备所指示的CSI反馈配置组具有几种优选地特征，在前述内容中已经详细叙述过，在此不再赘述。The indication information of the CSI feedback configuration group used by the network device in the foregoing step 301 to indicate the CSI feedback is usually sent by the high layer signaling, that is, the network device can configure the CSI feedback configuration for the CSI feedback to the terminal through the high layer signaling. group. The CSI feedback configuration group indicated by the network device has several preferred features, which have been described in detail in the foregoing, and will not be further described herein.

上述步骤302中，可选地，CSI反馈方式包含第一反馈方式和第二反馈方式；第一反馈方式是指反馈基于该CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；第二反馈方式是指从该CSI反馈配置组中选择最优CSI反馈配置，并反馈基于该CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。In the above step 302, optionally, the CSI feedback mode includes a first feedback mode and a second feedback mode; the first feedback mode refers to feedback CSI measured based on all CSI feedback configurations in the CSI feedback configuration group; The feedback mode refers to selecting an optimal CSI feedback configuration from the CSI feedback configuration group, and feeding back CSI measured based on the optimal CSI feedback configuration in the CSI feedback configuration group, and the optimal CSI feedback configuration in the CSI feedback. Configure location information in the group.

上述第二反馈方式中，最优的CSI反馈配置在该CSI反馈配置组中的位置信息可有多种表示方式，以下介绍两种优选地方式：In the foregoing second feedback mode, the location information of the optimal CSI feedback configuration in the CSI feedback configuration group may be represented by multiple representations. Two preferred modes are described below:

第一种位置表示方式：最优的CSI反馈配置在该CSI反馈配置组中的位置信息具体是指最优的CSI反馈配置在该CSI反馈配置组中的索引；The first location representation manner: the location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to an index of the optimal CSI feedback configuration in the CSI feedback configuration group;

第二种位置表示方式：该CSI反馈配置组中的每个CSI反馈配置在该位置序列中对应一个位置，最优的CSI反馈配置在该CSI反馈配置组中的位置信息具体是指最优的CSI反馈配置在该CSI反馈配置组的位置序列上对应位置的比特值。The second location representation manner: each CSI feedback configuration in the CSI feedback configuration group is corresponding to one location in the sequence of the location, and the location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to an optimal one. The CSI feedback configures a bit value of a corresponding position on the position sequence of the CSI feedback configuration group.

上述步骤302中，可选地，终端确定该CSI反馈配置组对应的CSI反馈方式，前述内容已经详细介绍过，在此仅略述：In the foregoing step 302, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group. The foregoing content has been described in detail, and only the following is outlined:

方式一，终端根据该CSI反馈配置组中包含的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式。In the first mode, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the number of CSI feedback configurations included in the CSI feedback configuration group.

方式二，终端根据该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式。 In the second mode, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback.

可选地，上述方式二中，若针对该CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对该CSI反馈配置组采用第一反馈方式，否则确定针对该CSI反馈配置组采用第二反馈方式。Optionally, in the foregoing manner, if the CSI feedback is required for all the CSI feedback configurations included in the CSI feedback configuration group, determining that the first feedback mode is adopted for the CSI feedback configuration group, otherwise determining the CSI feedback configuration for the CSI feedback configuration group. The group uses the second feedback method.

方式三，根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式。In the third manner, the CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode indication information included in the trigger signaling of the received aperiodic CSI feedback.

方式四，终端根据该CSI反馈配置组对应的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息。可选地，网络设备指示的用于CSI反馈的CSI反馈配置组还包括该CSI反馈配置组对应的反馈方式。 In the fourth method, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the feedback mode indication information corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information. Optionally, the CSI feedback configuration group for CSI feedback indicated by the network device further includes a feedback manner corresponding to the CSI feedback configuration group.

方式五，根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，其中，该CSI反馈配置组的反馈模式包含周期CSI反馈和非周期CSI反馈。可选地，网络设备可通过信令配置终端是进行周期CSI反馈，还是进行非周期CSI反馈。In the fifth mode, the CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback. Optionally, the network device may configure, by signaling, whether the terminal performs periodic CSI feedback or aperiodic CSI feedback.

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含秩指示RI，则位置信息的反馈周期为RI的反馈周期的N倍，且位置信息的物理上行链路控制信道PUCCH资源位置与RI的PUCCH资源位置相同，其中，N为正整数。Optionally, if the determined CSI feedback mode is the second feedback mode, and the feedback CSI based on the optimal CSI feedback configuration in the CSI feedback configuration group is included in the CSI, the feedback period of the location information is RI. The feedback period is N times, and the physical uplink control channel PUCCH resource location of the location information is the same as the PUCCH resource location of the RI, where N is a positive integer.

可选地，在同一个子帧中反馈位置信息和RI时，RI是根据该同一个子帧中反馈的位置信息对应的最优的CSI反馈配置进行测量得到的。Optionally, when the location information and the RI are fed back in the same subframe, the RI is measured according to an optimal CSI feedback configuration corresponding to the location information fed back in the same subframe.

可选地，在不同子帧中反馈位置信息和RI时，所反馈的RI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Optionally, when the location information and the RI are fed back in different subframes, the fed back RI is obtained by performing CSI measurement according to an optimal CSI feedback configuration corresponding to the most recently fed back location information.

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含预编码矩阵指示PMI和/或信道质量指示CQI，则所反馈的PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。 Optionally, if the determined CSI feedback mode is the second feedback mode, and the fed back CSI feedback configuration based on the optimal CSI feedback configuration in the CSI feedback configuration group, the precoding matrix indication PMI and/or the channel quality indicator CQI are included in the CSI. Then, the fed PMI and/or CQI is obtained by performing CSI measurement according to the optimal CSI feedback configuration corresponding to the recently fed back location information.

上述步骤302中，网络设备接收到终端反馈的CSI之后，基于该终端反馈的CSI进行下行数据传输，或者基于该终端反馈的CSI进行CSI反馈配置信息的更新。In the foregoing step 302, after receiving the CSI fed back by the terminal, the network device performs downlink data transmission based on the CSI fed back by the terminal, or performs CSI feedback configuration information update based on the CSI fed back by the terminal.

基于相同构思，图4示例性示出了本公开实施例提供一种终端，用于执行上述方法流程。如图4所示，本公开实施例所提供的一种终端包括接收单元401、确定单元402、处理单元403，Based on the same concept, FIG. 4 exemplarily shows a terminal of the present disclosure for performing the above method flow. As shown in FIG. 4, a terminal provided by an embodiment of the present disclosure includes a receiving unit 401, a determining unit 402, and a processing unit 403.

接收单元401，用于接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；The receiving unit 401 is configured to receive, by the network device, a CSI feedback configuration group for channel state information CSI feedback;

确定单元402，用于确定该CSI反馈配置组对应的CSI反馈方式；a determining unit 402, configured to determine a CSI feedback manner corresponding to the CSI feedback configuration group;

处理单元403，用于根据该确定的CSI反馈方式进行CSI测量和反馈。The processing unit 403 is configured to perform CSI measurement and feedback according to the determined CSI feedback manner.

可选地，该处理单元403，具体用于：Optionally, the processing unit 403 is specifically configured to:

对该CSI反馈配置组中的每个CSI反馈配置进行RSRP测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing RSRP measurement on each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the RSRP with the largest median value of the one or more RSRPs as the optimal CSI feedback configuration in the CSI feedback configuration group. ;or

对该CSI反馈配置组中的每个CSI反馈配置进行CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing CQI estimation on each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs as the most CSI feedback configuration. Optimal CSI feedback configuration in the group; or

对该CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的TBsize，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。The CSI measurement is performed on each CSI feedback configuration in the CSI feedback configuration group, and the TBsize corresponding to each CSI feedback configuration is obtained according to the CSI measurement result, and the CSI feedback corresponding to the determined TBsize with the largest median value of the TBsize is determined. Configure the optimal CSI feedback configuration as the CSI feedback configuration group in the group.

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含预编码矩阵指示PMI和/或信道质量指示CQI，则所反馈的PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Optionally, if the determined CSI feedback mode is the second feedback mode, and the fed back CSI feedback configuration based on the optimal CSI feedback configuration in the CSI feedback configuration group, the precoding matrix indication PMI and/or the channel quality indicator CQI are included in the CSI. Then, the fed PMI and/or CQI is obtained by performing CSI measurement according to the optimal CSI feedback configuration corresponding to the recently fed back location information.

可选地，该确定单元402，具体用于：Optionally, the determining unit 402 is specifically configured to:

根据该CSI反馈配置组中包含的CSI反馈配置的数量，确定该CSI反馈配置组对应的CSI反馈方式；或者Determining the CSI feedback according to the number of CSI feedback configurations included in the CSI feedback configuration group Configure the CSI feedback mode corresponding to the group; or

若针对该CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对该CSI反馈配置组采用第一反馈方式，否则确定针对该CSI反馈配置组采用第二反馈方式，其中，该第一反馈方式是指反馈该CSI反馈配置组中的所有CSI反馈配置对应的CSI，该第二反馈方式是指反馈该CSI反馈配置组中最优的CSI反馈配置对应的CSI以及该最优的CSI反馈配置在该CSI反馈配置组中的位置信息。 If the CSI feedback configuration is required for all the CSI feedback configurations included in the CSI feedback configuration group, the first feedback mode is determined for the CSI feedback configuration group, and the second feedback mode is determined for the CSI feedback configuration group. The first feedback mode refers to the CSI corresponding to all the CSI feedback configurations in the CSI feedback configuration group, and the second feedback mode refers to the CSI corresponding to the optimal CSI feedback configuration in the CSI feedback configuration group. The CSI feedback configures location information in the CSI feedback configuration group.

从上述内容可以看出：网络设备向终端指示出用于CSI反馈的CSI反馈配置组，终端接收到该CSI反馈配置组之后，确定出该CSI反馈配置组对应的CSI反馈方式，从而实现了终端根据网络设备所配置的CSI反馈配置组进行CSI测量和反馈的目的，进而实现了终端同时支持网络设备FD-MIMO和非FD-MIMO两种模式下的CSI的反馈方式的目的。It can be seen from the above that the network device indicates the CSI feedback configuration group for the CSI feedback to the terminal, and after receiving the CSI feedback configuration group, the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group, thereby implementing the terminal. According to the CSI feedback configuration group configured by the network device, the purpose of performing CSI measurement and feedback is to achieve the purpose of supporting the CSI feedback mode of the network device FD-MIMO and non-FD-MIMO modes.

基于相同构思，图5示例性示出了本公开实施例提供一种网络设备，用于执行上述方法流程。如图5所示，本公开实施例所提供的一种网络设备包括发送单元501、接收单元502、处理单元503，Based on the same concept, FIG. 5 exemplarily shows a network device for performing the above method flow. As shown in FIG. 5, a network device provided by an embodiment of the present disclosure includes a sending unit 501, a receiving unit 502, and a processing unit 503.

发送单元501，用于向终端指示的用于信道状态信息CSI反馈的CSI反馈配置组； a sending unit 501, configured to indicate, by the terminal, a CSI feedback configuration group for channel state information CSI feedback;

接收单元502，用于接收终端基于确定出的该CSI反馈配置组对应的CSI反馈方式进行CSI测量所得到的CSI；The receiving unit 502 is configured to receive, by the terminal, CSI obtained by performing CSI measurement according to the determined CSI feedback manner corresponding to the CSI feedback configuration group.

处理单元503，用于基于接收到的该终端反馈的CSI进行下行数据传输，或者基于该终端反馈的CSI进行CSI反馈配置信息的更新。The processing unit 503 is configured to perform downlink data transmission based on the received CSI fed back by the terminal, or perform CSI feedback configuration information update based on the CSI fed back by the terminal.

可选地，该发送单元501，具体用于：Optionally, the sending unit 501 is specifically configured to:

向终端指示CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。可选地，将CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量携带与CSI反馈配置组中预先指示给终端。Indicates to the terminal the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback. Optionally, the number of CSI feedback configurations that need to perform CSI feedback in the CSI feedback configuration group is carried in advance with the CSI feedback configuration group to the terminal.

向终端指示CSI反馈配置组对应的反馈方式指示信息，以使终端根据该CSI反馈配置组对应的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息。And indicating, to the terminal, the feedback mode indication information corresponding to the CSI feedback configuration group, so that the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the feedback mode indication information corresponding to the CSI feedback configuration group, and each CSI feedback configuration group corresponding configuration There is feedback mode indication information.

向终端指示该CSI反馈配置组的反馈模式，以使终端根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，其中，该CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。 And indicating, to the terminal, the feedback mode of the CSI feedback configuration group, so that the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback And aperiodic CSI feedback.

可选地，发送单元501，用于通过非周期CSI反馈的触发信令中包含的指示信息向终端指示该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。Optionally, the sending unit 501 is configured to indicate, by using the indication information included in the trigger signaling of the aperiodic CSI feedback, the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback.

可选地，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中，发送单元501通过向终端指示该CSI反馈配置组预先将该CSI反馈配置组对应的反馈方式指示信息指示给终端。Optionally, the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group, and the sending unit 501 indicates to the terminal that the CSI feedback configuration group indicates the feedback mode indication information corresponding to the CSI feedback configuration group in advance. terminal.

基于相同构思，图6示例性示出了本公开实施例提供一种终端，用于执行上述方法流程。如图6所示，本公开实施例所提供的一种终端包括处理器600、收发机601、存储器602，Based on the same concept, FIG. 6 exemplarily shows that an embodiment of the present disclosure provides a terminal for performing The above method flow is performed. As shown in FIG. 6, a terminal provided by an embodiment of the present disclosure includes a processor 600, a transceiver 601, and a memory 602.

处理器600，用于读取存储器602中的程序，执行下列过程：The processor 600 is configured to read a program in the memory 602 and perform the following process:

收发机601，用于在处理器600的控制下接收和发送数据。The transceiver 601 is configured to receive and transmit data under the control of the processor 600.

可选地，该处理器600，具体用于：Optionally, the processor 600 is specifically configured to:

对该CSI反馈配置组中的每个CSI反馈配置进行CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing CQI estimation on each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs as the most optimal CSI feedback configuration in the CSI feedback configuration group. ;or

最优的CSI反馈配置在该CSI反馈配置组中的索引；或者 The index of the optimal CSI feedback configuration in the CSI feedback configuration group; or

可选地，处理器600，具体用于：Optionally, the processor 600 is specifically configured to:

根据该CSI反馈配置组对应的反馈方式指示信息，确定该CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息；或者 Determining, according to the feedback mode indication information corresponding to the CSI feedback configuration group, the CSI feedback mode corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information; or

其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器602代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机601可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器600负责管理总线架构和通常的处理，存储器602可以存储处理器600在执行操作时所使用的数据。Wherein, in FIG. 6, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 602. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 601 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 600 is responsible for managing the bus architecture and general processing, and the memory 602 can store data used by the processor 600 in performing operations.

基于相同构思，图7示例性示出了本公开实施例提供一种网络设备，用于执行上述方法流程。如图7所示，本公开实施例所提供的一种网络设备包括处理器700、收发机701、存储器702，Based on the same concept, FIG. 7 exemplarily shows a network device for performing the above method flow. As shown in FIG. 7, a network device provided by an embodiment of the present disclosure includes a processor 700, a transceiver 701, and a memory 702.

处理器700，用于读取存储器702中的程序，执行下列过程：The processor 700 is configured to read a program in the memory 702 and perform the following process:

向终端指示的用于信道状态信息CSI反馈的CSI反馈配置组； a CSI feedback configuration group for channel state information CSI feedback indicated to the terminal;

接收终端基于确定出的该CSI反馈配置组对应的CSI反馈方式进行CSI测量所得到的CSI；The receiving terminal performs CSI measurement based on the CSI feedback manner corresponding to the CSI feedback configuration group;

基于接收到的该终端反馈的CSI进行下行数据传输，或者基于该终端反馈的CSI进行CSI反馈配置信息的更新；Performing downlink data transmission based on the received CSI fed back by the terminal, or performing CSI feedback configuration information update based on the CSI fed back by the terminal;

收发机701，用于在处理器700的控制下接收和发送数据。The transceiver 701 is configured to receive and transmit data under the control of the processor 700.

可选地，若确定的CSI反馈方式为第二反馈方式，且反馈的基于CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含预编码矩阵指示PMI和/或信道质量指示CQI，则所反馈的PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。Optionally, if the determined CSI feedback mode is the second feedback mode, and the feedback is based on the CSI The PSI in the CSI feedback configuration in the feed configuration group includes a precoding matrix indication PMI and/or a channel quality indicator CQI, and the fed PMI and/or CQI is the most corresponding to the most recently fed back location information. The excellent CSI feedback configuration is obtained by CSI measurement.

可选地，该处理器700，具体用于：Optionally, the processor 700 is specifically configured to:

向终端指示该CSI反馈配置组的反馈模式，以使终端根据该CSI反馈配置组的反馈模式确定该CSI反馈配置组对应的CSI反馈方式，其中，该CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。And indicating, to the terminal, the feedback mode of the CSI feedback configuration group, so that the terminal determines the CSI feedback mode corresponding to the CSI feedback configuration group according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback And aperiodic CSI feedback.

可选地，处理器700，用于通过非周期CSI反馈的触发信令中包含的指示信息向终端指示该CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量。Optionally, the processor 700 is configured to indicate, by using the indication information included in the trigger signaling of the aperiodic CSI feedback, the number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback.

可选地，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中，处理器700通过向终端指示该CSI反馈配置组预先将该CSI反馈配置组对应的反馈方式指示信息指示给终端。Optionally, the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group, and the processor 700 indicates to the terminal that the CSI feedback configuration group in advance indicates the feedback mode indication information corresponding to the CSI feedback configuration group. terminal.

其中，在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器700代表的一个或多个处理器和存储器702代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机701可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器700负责管理总线架构和通常的处理，存储器702可以存储处理器700在执行操作时所使用的数据。In FIG. 7, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 700 and various circuits of memory represented by memory 702. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 701 can be a plurality of components. That is, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 700 in performing operations.

本领域内的技术人员应明白，本公开的实施例可提供为方法、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包含但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as a method, or a computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

本公开是参照根据本公开实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包含指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device. Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing one or more processes and/or block diagrams in the flowchart. The steps of a function specified in a box or multiple boxes.

尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包含优选实施例以及落入本公开范围的所有变更和修改。While the preferred embodiment of the present disclosure has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, it is intended that the appended claims be interpreted as

显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。 It will be apparent to those skilled in the art that various changes and modifications can be made in the present disclosure without departing from the spirit and scope of the disclosure. Thus, it is intended that the present invention cover the modifications and the modifications

Claims

一种信道状态信息反馈方法，包括：A channel state information feedback method includes:

接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；Receiving a CSI feedback configuration group for channel state information CSI feedback indicated by the network device;

确定所述CSI反馈配置组对应的CSI反馈方式；Determining a CSI feedback mode corresponding to the CSI feedback configuration group;

根据所述确定的CSI反馈方式进行CSI测量和反馈。CSI measurement and feedback are performed according to the determined CSI feedback manner.
如权利要求1所述的方法，其中，所述CSI反馈方式包括第一反馈方式和第二反馈方式；The method of claim 1, wherein the CSI feedback mode comprises a first feedback mode and a second feedback mode;

所述第一反馈方式是指反馈基于所述CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；所述第二反馈方式是指从所述CSI反馈配置组中选择最优CSI反馈配置，并反馈基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。The first feedback mode refers to feedback of CSI measured based on all CSI feedback configurations in the CSI feedback configuration group; and the second feedback mode refers to selecting an optimal CSI feedback configuration from the CSI feedback configuration group. And feeding back the CSI measured based on the optimal CSI feedback configuration in the CSI feedback configuration group and the location information of the optimal CSI feedback configuration in the CSI feedback configuration group.
如权利要求2所述的方法，其中，所述从所述CSI反馈配置组中选择最优CSI反馈配置，包括：The method of claim 2, wherein the selecting an optimal CSI feedback configuration from the CSI feedback configuration group comprises:

对所述CSI反馈配置组中的每个CSI反馈配置进行参考信号接收功率RSRP测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing reference signal received power RSRP measurement for each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the RSRP with the largest median value of one or more RSRPs as the most in the group of CSI feedback configuration groups. Excellent CSI feedback configuration; or

对所述CSI反馈配置组中的每个CSI反馈配置进行信道质量指示CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing channel quality indicator CQI estimation on each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs as the most optimal in the CSI feedback configuration group. CSI feedback configuration; or

对所述CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的传输块尺寸TBsize，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。Performing CSI measurement on each CSI feedback configuration in the CSI feedback configuration group, and obtaining a transport block size TBsize corresponding to each CSI feedback configuration according to the CSI measurement result, and determining a maximum TBsize of one or more TBsize median values. The corresponding CSI feedback configuration is used as the optimal CSI feedback configuration in the group of CSI feedback configuration groups.
如权利要求2所述的方法，其中，所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息具体是指：The method of claim 2, wherein the location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to:

最优的CSI反馈配置在所述CSI反馈配置组中的索引；或者An index of the optimal CSI feedback configuration in the CSI feedback configuration group; or

最优的CSI反馈配置在所述CSI反馈配置组的位置序列上对应位置的比特值，所述CSI反馈配置组中的每个CSI反馈配置对应所述位置序列上的一个位置。The ratio of the optimal CSI feedback configuration to the corresponding position on the position sequence of the CSI feedback configuration group In particular, each CSI feedback configuration in the CSI feedback configuration group corresponds to a location on the sequence of locations.
如权利要求2所述的方法，其中，若所述确定的CSI反馈方式为第二反馈方式，且反馈的基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含秩指示RI，则所述位置信息的反馈周期为所述RI的反馈周期的N倍，且所述位置信息的物理上行链路控制信道PUCCH资源位置与所述RI的PUCCH资源位置相同，其中，N为正整数。The method according to claim 2, wherein if the determined CSI feedback mode is the second feedback mode, and the feedback is based on the optimal CSI feedback configuration in the CSI feedback configuration group, the CSI includes the rank. Instructing the RI, the feedback period of the location information is N times of the feedback period of the RI, and the physical uplink control channel PUCCH resource location of the location information is the same as the PUCCH resource location of the RI, where, Is a positive integer.
如权利要求5所述的方法，其中，在同一个子帧中反馈所述位置信息和所述RI时，所述位置信息和所述RI时是经过联合编码或者级联之后反馈的。The method of claim 5, wherein when the location information and the RI are fed back in the same subframe, the location information and the RI time are fed back after joint coding or concatenation.
如权利要求5所述的方法，其中，在同一个子帧中反馈所述位置信息和所述RI时，所述RI是根据该同一个子帧中反馈的所述位置信息对应的最优的CSI反馈配置进行测量得到的。The method according to claim 5, wherein, when the position information and the RI are fed back in the same subframe, the RI is an optimal CSI feedback corresponding to the position information fed back in the same subframe. The configuration is measured.
如权利要求5所述的方法，其中，在不同子帧中反馈所述位置信息和所述RI时，所反馈的RI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。The method according to claim 5, wherein, when the position information and the RI are fed back in different subframes, the fed back RI is CSI measurement according to an optimal CSI feedback configuration corresponding to the most recently fed back position information. owned.
如权利要求2所述的方法，其中，若所述确定的CSI反馈方式为第二反馈方式，且反馈的基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含预编码矩阵指示PMI和/或信道质量指示CQI，则所反馈的所述PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。The method according to claim 2, wherein if the determined CSI feedback mode is the second feedback mode, and the feedback is based on the optimal CSI feedback configuration in the CSI feedback configuration group, the CSI included in the CSI feedback configuration is included The coding matrix indicates the PMI and/or the channel quality indication CQI, and the fed PMI and/or CQI is obtained by performing CSI measurement according to the optimal CSI feedback configuration corresponding to the most recently fed back location information.
如权利要求1所述的方法，其中，所述确定所述CSI反馈配置组对应的CSI反馈方式，包括：The method of claim 1, wherein the determining a CSI feedback manner corresponding to the CSI feedback configuration group comprises:

根据所述CSI反馈配置组中包含的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations included in the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations of the CSI feedback configuration group in the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定所述CSI反馈配置组对应的CSI反馈方式；或者 Determining, according to the feedback manner indication information included in the trigger signaling of the received aperiodic CSI feedback, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据所述CSI反馈配置组对应的反馈方式指示信息，确定所述CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息；或者Determining, according to the feedback mode indication information corresponding to the CSI feedback configuration group, a CSI feedback mode corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information; or

根据所述CSI反馈配置组的反馈模式确定所述CSI反馈配置组对应的CSI反馈方式，其中，所述CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。The CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback.
如权利要求10所述的方法，其中，所述根据所述CSI反馈配置组中包含的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式，包括：The method of claim 10, wherein determining the CSI feedback manner corresponding to the CSI feedback configuration group according to the number of CSI feedback configurations included in the CSI feedback configuration group comprises:

若所述CSI反馈配置组中包含一个CSI反馈配置，则确定针对所述CSI反馈配置组采用第一反馈方式，所述第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the CSI feedback configuration group includes a CSI feedback configuration, it is determined that the first feedback mode is adopted for the CSI feedback configuration group, where the first feedback manner refers to feeding back all CSI feedback configurations in the CSI feedback configuration group. Corresponding CSI; or

若所述CSI反馈配置组中包含多个CSI反馈配置，则确定针对所述CSI反馈配置组采用第二反馈方式，所述第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the CSI feedback configuration group includes multiple CSI feedback configurations, it is determined that the second feedback mode is adopted for the CSI feedback configuration group, and the second feedback manner refers to feeding back the optimal CSI in the CSI feedback configuration group. The CSI corresponding to the feedback configuration and the optimal CSI feedback configure location information in the CSI feedback configuration group.
如权利要求10所述的方法，其中，所述根据所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式，包括：The method of claim 10, wherein the determining, according to the number of CSI feedback configurations in the CSI feedback configuration group, the CSI feedback configuration corresponding to the CSI feedback configuration group, includes:

若针对所述CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对所述CSI反馈配置组采用第一反馈方式，否则确定针对所述CSI反馈配置组采用第二反馈方式，其中，所述第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI，所述第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the CSI feedback is required for all the CSI feedback configurations included in the CSI feedback configuration group, the first feedback mode is determined for the CSI feedback configuration group, and the second feedback mode is determined for the CSI feedback configuration group. The first feedback mode refers to the feedback of the CSI corresponding to all the CSI feedback configurations in the CSI feedback configuration group, and the second feedback mode refers to the feedback of the optimal CSI feedback configuration in the CSI feedback configuration group. The corresponding CSI and the optimal CSI feedback configure location information in the CSI feedback configuration group.
如权利要求10或12所述的方法，其中，所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量是预先约定的；或者The method according to claim 10 or 12, wherein the number of CSI feedback configurations in the CSI feedback configuration group to be subjected to CSI feedback is pre-agreed; or

所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由所述网络设备配置；或者 The number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is configured by the network device; or

所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由所述网络设备通过非周期CSI反馈的触发信令中包含的指示信息进行指示。The number of CSI feedback configurations that need to be subjected to CSI feedback in the CSI feedback configuration group is indicated by the indication information included in the trigger signaling of the aperiodic CSI feedback by the network device.
如权利要求10所述的方法，其中，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中。The method of claim 10, wherein the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group.
如权利要求10所述的方法，其中，所述根据所述CSI反馈配置组的反馈模式确定所述CSI反馈配置组对应的CSI反馈方式，包括：The method of claim 10, wherein the determining, according to the feedback mode of the CSI feedback configuration group, the CSI feedback manner corresponding to the CSI feedback configuration group comprises:

若所述CSI反馈配置组的反馈模式为周期CSI反馈，则确定所述CSI反馈配置组对应的CSI反馈方式为第一反馈方式，第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the feedback mode of the CSI feedback configuration group is periodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the first feedback mode, where the first feedback manner refers to feeding back all the CSI feedback configuration groups. CSI feedback configuration corresponding CSI; or

若所述CSI反馈配置组的反馈模式为非周期CSI反馈，则确定所述CSI反馈配置组对应的CSI反馈方式为第二反馈方式，第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the feedback mode of the CSI feedback configuration group is aperiodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the second feedback mode, and the second feedback manner refers to feeding back the most of the CSI feedback configuration groups. The CSI corresponding to the CSI feedback configuration and the optimal CSI feedback configure the location information in the CSI feedback configuration group.
一种终端，包括：A terminal comprising:

接收单元，用于接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；a receiving unit, configured to receive a CSI feedback configuration group for channel state information CSI feedback indicated by the network device;

确定单元，用于确定所述CSI反馈配置组对应的CSI反馈方式；a determining unit, configured to determine a CSI feedback mode corresponding to the CSI feedback configuration group;

处理单元，用于根据所述确定的CSI反馈方式进行CSI测量和反馈。And a processing unit, configured to perform CSI measurement and feedback according to the determined CSI feedback manner.
如权利要求16所述的终端，其中，所述CSI反馈方式包括第一反馈方式和第二反馈方式；The terminal according to claim 16, wherein the CSI feedback mode comprises a first feedback mode and a second feedback mode;

所述第一反馈方式是指反馈基于所述CSI反馈配置组中的所有CSI反馈配置进行测量得到的CSI；所述第二反馈方式是指从所述CSI反馈配置组中选择最优CSI反馈配置，并反馈基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。The first feedback mode refers to feedback of CSI measured based on all CSI feedback configurations in the CSI feedback configuration group; and the second feedback mode refers to selecting an optimal CSI feedback configuration from the CSI feedback configuration group. And feeding back the CSI measured based on the optimal CSI feedback configuration in the CSI feedback configuration group and the location information of the optimal CSI feedback configuration in the CSI feedback configuration group.
如权利要求17所述的终端，其中，所述处理单元，具体用于：The terminal according to claim 17, wherein the processing unit is specifically configured to:

对所述CSI反馈配置组中的每个CSI反馈配置进行参考信号接收功率RSRP测量，将确定出的一个或多个RSRP中值最大的RSRP对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置；或者 Performing reference signal received power RSRP measurement for each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the RSRP with the largest median value of one or more RSRPs as the most in the group of CSI feedback configuration groups. Excellent CSI feedback configuration; or

对所述CSI反馈配置组中的每个CSI反馈配置进行信道质量指示CQI估计，将确定出的一个或多个CQI中值最大的CQI对应的CSI反馈配置最为该组CSI反馈配置组中最优的CSI反馈配置；或者Performing channel quality indicator CQI estimation on each CSI feedback configuration in the CSI feedback configuration group, and determining the CSI feedback configuration corresponding to the CQI with the largest median value of one or more CQIs as the most optimal in the CSI feedback configuration group. CSI feedback configuration; or

对所述CSI反馈配置组中的每个CSI反馈配置进行CSI测量，根据该CSI测量结果得到每个CSI反馈配置对应的传输块尺寸TBsize，将确定出的一个或多个TBsize中值最大的TBsize对应的CSI反馈配置作为该组CSI反馈配置组中最优的CSI反馈配置。Performing CSI measurement on each CSI feedback configuration in the CSI feedback configuration group, and obtaining a transport block size TBsize corresponding to each CSI feedback configuration according to the CSI measurement result, and determining a maximum TBsize of one or more TBsize median values. The corresponding CSI feedback configuration is used as the optimal CSI feedback configuration in the group of CSI feedback configuration groups.
如权利要求17所述的终端，其中，所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息具体是指：The terminal according to claim 17, wherein the location information of the optimal CSI feedback configuration in the CSI feedback configuration group specifically refers to:

最优的CSI反馈配置在所述CSI反馈配置组中的索引；或者An index of the optimal CSI feedback configuration in the CSI feedback configuration group; or

最优的CSI反馈配置在所述CSI反馈配置组的位置序列上对应位置的比特值，所述CSI反馈配置组中的每个CSI反馈配置对应所述位置序列上的一个位置。The optimal CSI feedback configures a bit value of the corresponding position on the position sequence of the CSI feedback configuration group, and each CSI feedback configuration in the CSI feedback configuration group corresponds to a position on the position sequence.
如权利要求17所述的终端，其中，若所述确定的CSI反馈方式为第二反馈方式，且反馈的基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含秩指示RI，则所述位置信息的反馈周期为所述RI的反馈周期的N倍，且所述位置信息的物理上行链路控制信道PUCCH资源位置与所述RI的PUCCH资源位置相同，其中，N为正整数。The terminal according to claim 17, wherein if the determined CSI feedback mode is the second feedback mode, and the feedback is based on the optimal CSI feedback configuration in the CSI feedback configuration group, the CSI includes the rank. Instructing the RI, the feedback period of the location information is N times of the feedback period of the RI, and the physical uplink control channel PUCCH resource location of the location information is the same as the PUCCH resource location of the RI, where, Is a positive integer.
如权利要求20所述的终端，其中，在同一个子帧中反馈所述位置信息和所述RI时，所述位置信息和所述RI时是经过联合编码或者级联之后反馈的。The terminal according to claim 20, wherein when the position information and the RI are fed back in the same subframe, the position information and the RI time are fed back after joint coding or cascading.
如权利要求20所述的终端，其中，在同一个子帧中反馈所述位置信息和所述RI时，所述RI是根据该同一个子帧中反馈的所述位置信息对应的最优的CSI反馈配置进行测量得到的。The terminal according to claim 20, wherein, when the location information and the RI are fed back in the same subframe, the RI is an optimal CSI feedback corresponding to the location information fed back in the same subframe. The configuration is measured.
如权利要求20所述的终端，其中，在不同子帧中反馈所述位置信息和所述RI时，所反馈的RI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。The terminal according to claim 20, wherein, when the position information and the RI are fed back in different subframes, the fed back RI is CSI measurement according to an optimal CSI feedback configuration corresponding to the most recently fed back position information. owned.
如权利要求17所述的终端，其中，若所述确定的CSI反馈方式为第二反馈方式，且反馈的基于所述CSI反馈配置组中最优的CSI反馈配置进行测量得到的CSI中包含预编码矩阵指示PMI和/或信道质量指示CQI，则所反馈的所述PMI和/或CQI是根据最近反馈的位置信息所对应的最优的CSI反馈配置进行CSI测量得到的。The terminal according to claim 17, wherein if the determined CSI feedback mode is the second feedback mode, and the feedback is based on the optimal CSI feedback configuration in the CSI feedback configuration group The measured CSI includes a precoding matrix indicating PMI and/or a channel quality indicator CQI, and the fed PMI and/or CQI is CSI measured according to an optimal CSI feedback configuration corresponding to the most recently fed back location information. of.
如权利要求16所述的终端，其中，所述确定单元，具体用于：The terminal according to claim 16, wherein the determining unit is specifically configured to:

根据所述CSI反馈配置组中包含的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations included in the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量，确定所述CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the number of CSI feedback configurations of the CSI feedback configuration group in the CSI feedback configuration group, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据接收到的非周期CSI反馈的触发信令中包含的反馈方式指示信息，确定所述CSI反馈配置组对应的CSI反馈方式；或者Determining, according to the feedback manner indication information included in the trigger signaling of the received aperiodic CSI feedback, a CSI feedback manner corresponding to the CSI feedback configuration group; or

根据所述CSI反馈配置组对应的反馈方式指示信息，确定所述CSI反馈配置组对应的CSI反馈方式，每个CSI反馈配置组对应配置有反馈方式指示信息；或者Determining, according to the feedback mode indication information corresponding to the CSI feedback configuration group, a CSI feedback mode corresponding to the CSI feedback configuration group, and each CSI feedback configuration group is configured with feedback mode indication information; or

根据所述CSI反馈配置组的反馈模式确定所述CSI反馈配置组对应的CSI反馈方式，其中，所述CSI反馈配置组的反馈模式包括周期CSI反馈和非周期CSI反馈。The CSI feedback mode corresponding to the CSI feedback configuration group is determined according to the feedback mode of the CSI feedback configuration group, where the feedback mode of the CSI feedback configuration group includes periodic CSI feedback and aperiodic CSI feedback.
如权利要求25所述的终端，其中，所述确定单元，具体用于：The terminal of claim 25, wherein the determining unit is specifically configured to:

若所述CSI反馈配置组中包含一个CSI反馈配置，则确定针对所述CSI反馈配置组采用第一反馈方式，所述第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the CSI feedback configuration group includes a CSI feedback configuration, it is determined that the first feedback mode is adopted for the CSI feedback configuration group, where the first feedback manner refers to feeding back all CSI feedback configurations in the CSI feedback configuration group. Corresponding CSI; or

若所述CSI反馈配置组中包含多个CSI反馈配置，则确定针对所述CSI反馈配置组采用第二反馈方式，所述第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the CSI feedback configuration group includes multiple CSI feedback configurations, it is determined that the second feedback mode is adopted for the CSI feedback configuration group, and the second feedback manner refers to feeding back the optimal CSI in the CSI feedback configuration group. The CSI corresponding to the feedback configuration and the optimal CSI feedback configure location information in the CSI feedback configuration group.
如权利要求25所述的终端，其中，所述确定单元，具体用于：The terminal of claim 25, wherein the determining unit is specifically configured to:

若针对所述CSI反馈配置组中包含的所有CSI反馈配置均需进行CSI反馈，则确定针对所述CSI反馈配置组采用第一反馈方式，否则确定针对所述CSI反馈配置组采用第二反馈方式，其中，所述第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI，所述第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the CSI feedback is required for all the CSI feedback configurations included in the CSI feedback configuration group, the first feedback mode is determined for the CSI feedback configuration group, and the second feedback mode is determined for the CSI feedback configuration group. The first feedback mode refers to feedback CSI corresponding to all CSI feedback configurations in the CSI feedback configuration group, and the second feedback mode refers to The CSI corresponding to the optimal CSI feedback configuration in the CSI feedback configuration group and the optimal CSI feedback configuration information in the CSI feedback configuration group.
如权利要求25或27所述的终端，其中，所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量是预先约定的；或者The terminal according to claim 25 or 27, wherein the number of CSI feedback configurations in the CSI feedback configuration group that require CSI feedback is pre-agreed; or

所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由所述网络设备配置；或者The number of CSI feedback configurations in the CSI feedback configuration group that need to perform CSI feedback is configured by the network device; or

所述CSI反馈配置组中需进行CSI反馈的CSI反馈配置的数量由所述网络设备通过非周期CSI反馈的触发信令中包含的指示信息进行指示。The number of CSI feedback configurations that need to be subjected to CSI feedback in the CSI feedback configuration group is indicated by the indication information included in the trigger signaling of the aperiodic CSI feedback by the network device.
如权利要求25所述的终端，其中，CSI反馈配置组对应的反馈方式指示信息包含于该CSI反馈配置组中。The terminal according to claim 25, wherein the feedback mode indication information corresponding to the CSI feedback configuration group is included in the CSI feedback configuration group.
如权利要求25所述的终端，其中，所述确定单元，具体用于：The terminal of claim 25, wherein the determining unit is specifically configured to:

若所述CSI反馈配置组的反馈模式为周期CSI反馈，则确定所述CSI反馈配置组对应的CSI反馈方式为第一反馈方式，第一反馈方式是指反馈所述CSI反馈配置组中的所有CSI反馈配置对应的CSI；或者If the feedback mode of the CSI feedback configuration group is periodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the first feedback mode, where the first feedback manner refers to feeding back all the CSI feedback configuration groups. CSI feedback configuration corresponding CSI; or

若所述CSI反馈配置组的反馈模式为非周期CSI反馈，则确定所述CSI反馈配置组对应的CSI反馈方式为第二反馈方式，第二反馈方式是指反馈所述CSI反馈配置组中最优的CSI反馈配置对应的CSI以及所述最优的CSI反馈配置在所述CSI反馈配置组中的位置信息。If the feedback mode of the CSI feedback configuration group is aperiodic CSI feedback, determining that the CSI feedback configuration group corresponding to the CSI feedback configuration group is the second feedback mode, and the second feedback manner refers to feeding back the most of the CSI feedback configuration groups. The CSI corresponding to the CSI feedback configuration and the optimal CSI feedback configure the location information in the CSI feedback configuration group.
一种终端，包括处理器和收发机，其中，A terminal includes a processor and a transceiver, wherein

处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:

接收网络设备指示的用于信道状态信息CSI反馈的CSI反馈配置组；Receiving a CSI feedback configuration group for channel state information CSI feedback indicated by the network device;

确定所述CSI反馈配置组对应的CSI反馈方式；Determining a CSI feedback mode corresponding to the CSI feedback configuration group;

根据所述确定的CSI反馈方式进行CSI测量和反馈；Performing CSI measurement and feedback according to the determined CSI feedback manner;

收发机，用于在处理器的控制下接收和发送数据。 A transceiver for receiving and transmitting data under the control of a processor.