WO2017166977A1

WO2017166977A1 - Method and system for acquiring channel state information feedback, and related device

Info

Publication number: WO2017166977A1
Application number: PCT/CN2017/075761
Authority: WO
Inventors: 陈润华; 李辉; 高秋彬; 陈文洪; 塔玛拉卡·拉盖施
Original assignee: 电信科学技术研究院
Priority date: 2016-03-31
Filing date: 2017-03-06
Publication date: 2017-10-05
Also published as: CN107294582A

Abstract

Provided in the disclosure are a method and a system for acquiring channel state information feedback, and a related device, the method comprising: transmitting a first pilot signal; receiving first feedback information, the first feedback information reflecting the channel state measured on the first pilot signal; transmitting a second pilot signal; receiving second feedback information, the second feedback information reflecting the channel state of the second pilot signal.

Description

信道状态信息反馈的获取方法、相关设备及***Method for acquiring channel state information feedback, related device and system

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

本申请主张在2016年3月31日在中国提交的中国专利申请号No.201610197499.9的优先权，其全部内容通过引用包含于此。Priority is claimed on Japanese Patent Application No. 201610197499.9, filed on Jan. 31,,,,,,,

技术领域Technical field

本公开涉及通信技术领域，尤其涉及一种信道状态信息反馈的获取方法、相关设备及***。The present disclosure relates to the field of communications technologies, and in particular, to a method, a related device, and a system for acquiring channel state information feedback.

背景技术Background technique

在基于线性预编码的多天线***中，接收机根据信道信息从预先定义好的由预编码矩阵构成的集合中选择合适的预编码矩阵，将选中的预编码矩阵在集合中的索引反馈给发射机，该集合称为码本。发射机根据接收到的索引确定对应的预编码矩阵，并用其对发送信号进行适当的预处理，以提高信息传输的有效性和可靠性。码本是实现这一过程的必要元素。In a multi-antenna system based on linear precoding, a receiver selects an appropriate precoding matrix from a set of pre-defined precoding matrices according to channel information, and feeds back an index of the selected precoding matrix in the set to the transmission. Machine, this collection is called a codebook. The transmitter determines a corresponding precoding matrix according to the received index, and uses the appropriate preprocessing of the transmitted signal to improve the validity and reliability of the information transmission. The codebook is an essential element in achieving this process.

在Rel-10版本的LTE(Long Term Evolution，长期演进)***中，针对基站端8天线引入了两级码本。在Rel-12版本中，针对基站端4天线也增强为两级码本。在Rel-13版本中，基站端采用了FD MIMO(Full Dimension Multi-Input-Multi-Output，全维度多入多出技术)天线阵列(参见图1和图2)，天线端口增加至16，且可以一维或者二维排列。In the Rel-10 version of the LTE (Long Term Evolution) system, a two-level codebook is introduced for the base station 8 antenna. In the Rel-12 version, the base station 4 antenna is also enhanced to a two-level codebook. In the Rel-13 version, the FD MIMO (Full Dimension Multi-Input-Multi-Output) antenna array is used at the base station (see Figure 1 and Figure 2), and the antenna port is increased to 16, and Can be arranged in one or two dimensions.

具有较大数量天线单元的大规模MIMO技术可以有效提升无线网络的性能。对于大规模MIMO技术，通常使用non-precoded方案。Massive MIMO technology with a large number of antenna elements can effectively improve the performance of wireless networks. For massive MIMO technology, a non-precoded scheme is typically used.

对于non-precoded方案，eNB配置一个N端口导频资源，例如可以为CSI-RS(Channel State Information-Reference Signal，信道状态信息参考信号)或CRS(Cell-specific Reference Signal，小区专属参考信号)资源，这里N为eNB天线阵列的天线单元数。每个CSI-RS端口从一个天线单元发出，因此未进行预编码(non-precoded)。UE测量完整信道并上报N端口Precoding Matrix Indicator(PMI)/Channel Quality Indicator(CQI)。For the non-precoded scheme, the eNB configures an N-port pilot resource, for example, a CSI-RS (Channel State Information-Reference Signal) or a CRS (Cell-specific Reference Signal) resource. Where N is the number of antenna elements of the eNB antenna array. Each CSI-RS port is sent from one antenna unit and is therefore not pre-coded. The UE measures the complete channel and reports the N-port Precoding Matrix Indicator (PMI)/Channel Quality Indicator (CQI).

在实现本公开过程中，发明人发现现有技术中至少存在如下问题：对于non-precoded CSI-RS，CSI反馈依赖单一码本直接反馈。缺点是UE进行码本搜索的复杂度高，PMI开销大，这是由于码本的大小通常随N指数增长。In implementing the present disclosure, the inventors have found that at least the following problems exist in the prior art: for non-precoded CSI-RS, CSI feedback relies on a single codebook direct feedback. The disadvantage is that the UE performs the codebook. The complexity of the search is high and the PMI overhead is large, since the size of the codebook usually increases with the N exponent.

发明内容Summary of the invention

鉴于上述技术问题，本公开提供一种信道状态信息反馈的获取方法、相关设备及***，解决现有技术中反馈方法复杂度高和开销大的问题。In view of the above technical problem, the present disclosure provides a method for acquiring channel state information feedback, a related device, and a system, which solves the problem of high complexity and high overhead of the feedback method in the prior art.

依据本公开的一个方面，提供了一种信道状态信息反馈的获取方法，所述方法包括：发送第一导频信号；接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；发送第二导频信号；接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。According to an aspect of the present disclosure, a method for acquiring channel state information feedback is provided, the method comprising: transmitting a first pilot signal; receiving first feedback information, where the first feedback information reflects the first pilot a channel state measured on the signal; transmitting a second pilot signal; receiving second feedback information, the second feedback information reflecting a channel state of the second pilot signal.

可选地，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值；所述方法还包括：根据所述第一反馈信息对所述第二导频信号进行波束赋形或虚拟化。Optionally, the first feedback information is used to obtain a beamforming or virtualization weight of the second pilot signal; the method further includes: pairing the second pilot according to the first feedback information The signal is beamformed or virtualized.

可选地，所述方法还包括：根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据所述传输格式对下行数据进行赋形。Optionally, the method further includes determining a transmission format of the data transmission according to the second feedback information or according to the first feedback information and the second feedback information, and shaping the downlink data according to the transmission format.

可选地，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。Optionally, the transmission format includes one or more of a precoding matrix, a time frequency resource allocation, and a modulation and coding mode.

可选地，所述方法还包括：配置所述第一导频信号和第二导频信号，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。Optionally, the method further includes: configuring the first pilot signal and the second pilot signal, wherein the first pilot signal has N1 ports, and the second pilot signal has N2 ports , N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

可选地，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶；所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。 Optionally, the first feedback information includes one or more of the following: the first precoding matrix indicates the PMI1, the first channel quality information symbol CQI1, and the indication information of the second pilot signal in the first 轶 indication RI1, The first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebooks, and the first channel quality information symbol CQI1 corresponds to the first precoding matrix indicator PMI1, The first indication RI1 reflects that the first precoding matrix indicates the 轶 of the PMI1; the second feedback information includes one or more of the following: the second precoding matrix indicates the PMI2, the second channel quality information symbol CQI2, and the second轶 indicating RI2, wherein the second precoding matrix indicates that PMI2 points to one N2 port precoding matrix in the N2 port codebook, and the second channel quality information symbol CQI2 and the second precoding matrix indicate PMI2 Correspondingly, the second 轶 indication RI2 reflects that the second precoding matrix indicates the 轶 of PMI2.

可选地，所述方法还包括：配置第一导频资源和第二导频资源，其中，所述第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源，或者，配置第三导频资源，其中，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者，配置第四导频资源，其中，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Optionally, the method further includes: configuring a first pilot resource and a second pilot resource, where the first pilot signal uses the first pilot resource, and the second pilot signal uses The second pilot resource is configured, or the third pilot resource is configured, where the first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or, configuration a fourth pilot resource, wherein the first pilot signal and the second pilot signal can both use a fourth pilot resource, and the number of antenna ports of the fourth pilot resource is dynamically or semi-statically changed between subframes. .

可选地，所述方法还包括：配置第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。Optionally, the method further includes: configuring a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback, the first feedback information and the second The reporting period and the reporting offset are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second feedback information is triggered by the access device. Or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback information is aperiodic feedback, the first The second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

可选地，所述方法还包括：配置所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；发送第一反馈信息和第二反馈信息的反馈参数。Optionally, the method further includes: configuring feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, enabling/disabling PMI feedback parameters, enabling All or part of the parameters of the NR feedback parameter and the enabled/disabled CQI feedback parameter; the feedback parameter of the first feedback information and the second feedback information.

依据本公开实施例的另一个方面，还提供了一种信道状态信息反馈的获取方法，所述方法包括：接收第一导频信号；发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；接收第二导频信号；发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。According to another aspect of the embodiments of the present disclosure, a method for acquiring channel state information feedback is provided, the method comprising: receiving a first pilot signal; transmitting first feedback information, where the first feedback information reflects the a channel state measured on the first pilot signal; receiving a second pilot signal; transmitting second feedback information, the second feedback information reflecting a channel state of the second pilot signal.

可选地，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值。Optionally, the first feedback information is used to obtain a beamforming or virtualization weight of the second pilot signal.

可选地，所述方法还包括：接收根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。Optionally, the method further includes: receiving downlink data that is shaped according to the second feedback information or the transmission format determined according to the first feedback information and the second feedback information.

可选地，所述第一导频信号具有N1个端口，所述第二导频信号具有N2 个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。Optionally, the first pilot signal has N1 ports, and the second pilot signal has N2 Ports, N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

可选地，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶；所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。Optionally, the first feedback information includes one or more of the following: the first precoding matrix indicates the PMI1, the first channel quality information symbol CQI1, and the indication information of the second pilot signal in the first 轶 indication RI1, The first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebooks, and the first channel quality information symbol CQI1 corresponds to the first precoding matrix indicator PMI1, The first indication RI1 reflects that the first precoding matrix indicates the 轶 of the PMI1; the second feedback information includes one or more of the following: the second precoding matrix indicates the PMI2, the second channel quality information symbol CQI2, and the second轶 indicating RI2, wherein the second precoding matrix indicates that PMI2 points to one N2 port precoding matrix in the N2 port codebook, and the second channel quality information symbol CQI2 and the second precoding matrix indicate PMI2 Correspondingly, the second 轶 indication RI2 reflects that the second precoding matrix indicates the 轶 of PMI2.

可选地，所述第一导频信号使用第一导频资源，所述第二导频信号使用第二导频资源，或者，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Optionally, the first pilot signal uses a first pilot resource, the second pilot signal uses a second pilot resource, or the first pilot signal and the second pilot signal correspond to a third N1 ports and N2 ports in the pilot resource; or, the first pilot signal and the second pilot signal can use the fourth pilot resource, and the number of antenna ports of the fourth pilot resource is in the sub Dynamic or semi-static changes between frames.

可选地，所述方法还包括：接收所述第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。Optionally, the method further includes: receiving a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback, and the first feedback information and The reporting period and the reporting offset of the second feedback information are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second is triggered by the access device. The feedback information is reported; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback information is aperiodic feedback. The second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

可选地，所述方法还包括：接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。Optionally, the method further includes: receiving feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, enabling/disabling PMI feedback parameters, enabling /Failure RI feedback parameters and all or part of the parameters of the enabled/disabled CQI feedback parameters.

依据本公开实施例的又一个方面，还提供了一种接入设备，所述接入设备包括：第一发送模块，用于发送第一导频信号；第一接收模块，用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；第二发送模块，用于发送第二导频信号；第二接收模块，用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。According to still another aspect of the embodiments of the present disclosure, an access device is further provided, where the access device includes: a first sending module, configured to send a first pilot signal; and a first receiving module, configured to receive a first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; a second sending module is configured to send a second pilot signal; and a second receiving module is configured to receive the second feedback Information, the second feedback information reflects a channel state of the second pilot signal.

可选地，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值；所述接入设备还包括：赋形模块，用于根据所述第一反馈信息对所述第二导频信号进行波束赋形或虚拟化。Optionally, the first feedback information is used to obtain a beamforming or a virtualization weight of the second pilot signal; the access device further includes: a shaping module, configured to use, according to the first feedback Information is beamformed or virtualized to the second pilot signal.

可选地，所述接入设备还包括：确定模块，用于根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据所述传输格式对下行数据进行赋形。Optionally, the access device further includes: a determining module, configured to determine, according to the second feedback information, or according to the first feedback information and the second feedback information, a transmission format of the data transmission, and according to the transmission format The downlink data is shaped.

可选地，所述接入设备还包括：第一配置模块，用于配置所述第一导频信号和第二导频信号，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。Optionally, the access device further includes: a first configuration module, configured to configure the first pilot signal and the second pilot signal, where the first pilot signal has N1 ports, The second pilot signal has N2 ports, N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

可选地，所述接入设备还包括：第二配置模块，用于配置第一导频资源和第二导频资源，其中，所述第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源，或者，配置第三导频资源，其中，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者，配置第四导频资源，其中，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Optionally, the access device further includes: a second configuration module, configured to configure a first pilot resource and a second pilot resource, where the first pilot signal uses the first pilot resource, The second pilot signal uses the second pilot resource, or configures a third pilot resource, where the first pilot signal and the second pilot signal correspond to N1 of the third pilot resources. Port and N2 ports; Or configuring a fourth pilot resource, where the first pilot signal and the second pilot signal can use a fourth pilot resource, where the number of antenna ports of the fourth pilot resource is dynamic between subframes or Semi-static change.

可选地，所述接入设备还包括：第三配置模块，用于配置第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。Optionally, the access device further includes: a third configuration module, configured to configure a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback, The reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the first device triggers the first The feedback information and/or the second feedback information are reported; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback The information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

可选地，所述接入设备还包括：第四配置模块，用于配置所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；发送第一反馈信息和第二反馈信息的反馈参数。Optionally, the access device further includes: a fourth configuration module, configured to configure feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel, and/or interference measurement configuration parameters, All or part of the energy/failure PMI feedback parameter, the enable/fail RI feedback parameter, and the enable/fail CQI feedback parameter; and the feedback parameter of the first feedback information and the second feedback information.

依据本公开实施例的又一个方面，还提供了一种终端设备，所述终端设备包括：第三接收模块，用于接收第一导频信号；第三发送模块，用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；第四接收模块，用于接收第二导频信号；第四发送模块，用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。According to still another aspect of the embodiments of the present disclosure, a terminal device is further provided, where the terminal device includes: a third receiving module, configured to receive a first pilot signal; and a third sending module, configured to send the first feedback information The first feedback information reflects the channel state measured on the first pilot signal; the fourth receiving module is configured to receive the second pilot signal; and the fourth sending module is configured to send the second feedback information, where The second feedback information reflects a channel state of the second pilot signal.

可选地，所述终端设备还包括：第五接收模块，用于接收根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。Optionally, the terminal device further includes: a fifth receiving module, configured to receive downlink data that is shaped according to the second feedback information or the transmission format determined according to the first feedback information and the second feedback information.

可选地，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。 Optionally, the first pilot signal has N1 ports, the second pilot signal has N2 ports, N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

可选地，其中，所述第一导频信号使用第一导频资源，所述第二导频信号使用第二导频资源，或者，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Optionally, the first pilot signal uses a first pilot resource, the second pilot signal uses a second pilot resource, or the first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or both the first pilot signal and the second pilot signal can use the fourth pilot resource, and the number of antenna ports of the fourth pilot resource Dynamic or semi-static changes between subframes.

可选地，所述终端设备还包括：第六接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。Optionally, the terminal device further includes: a sixth receiving module, configured to receive a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback The reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the access device triggers the The feedback information and/or the second feedback information are reported; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or, the first The feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

可选地，所述终端设备还包括：第七接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。Optionally, the terminal device further includes: a seventh receiving module, configured to receive feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, and enable All or part of the parameters of the failed/inactive PMI feedback parameter, the enable/fail RI feedback parameter, and the enable/disable CQI feedback parameter.

依据本公开实施例的又一个方面，还提供了一种信道状态信息反馈的获取***，包括：接入设备，用于发送第一导频信号；所述接入设备，还用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；所述接入设备，还用于发送第二导频信号；所述接入设备，还用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态；终端设备，用于接收第一导频信号；所述终端设备，还用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；所述终端设备，还用于接收第二导频信号；所述终端设备，还用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。According to still another aspect of the embodiments of the present disclosure, an acquisition system for channel state information feedback is provided, including: an access device, configured to send a first pilot signal; and the access device is further used to Receiving the first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; the access device is further configured to send a second pilot signal; Receiving the second feedback information, the second feedback information reflects a channel state of the second pilot signal; the terminal device is configured to receive the first pilot signal; the terminal device is further configured to send the first feedback information The first feedback information reflects a channel state measured on the first pilot signal; the terminal device is further configured to receive a second pilot signal, and the terminal device is further configured to send second feedback information, where The second feedback information reflects a channel state of the second pilot signal.

上述技术中的一个技术方案具有如下优点或有益效果：通过结合non-precoded CSI-RS方案和波束赋形CSI-RS方案，有效降低本实施例中的反馈方案的复杂度和开销。One of the above technical solutions has the following advantages or advantages: By combining the non-precoded CSI-RS scheme and the beamforming CSI-RS scheme, the complexity and overhead of the feedback scheme in this embodiment are effectively reduced.

附图说明DRAWINGS

图1为Rel-13版本中的二维天线端口中12天线端口示意图；1 is a schematic diagram of a 12-antenna port in a two-dimensional antenna port in the Rel-13 version;

图2为Rel-13版本中的二维天线端口中16天线端口示意图；2 is a schematic diagram of a 16-antenna port in a two-dimensional antenna port in the Rel-13 version;

图3为本公开实施例的网络结构示意图；3 is a schematic structural diagram of a network according to an embodiment of the present disclosure;

图4为本公开的一些实施例的信道状态信息反馈的获取方法流程图；4 is a flowchart of a method for acquiring channel state information feedback according to some embodiments of the present disclosure;

图5为本公开的一些实施例的信道状态信息反馈的获取方法流程图；FIG. 5 is a flowchart of a method for acquiring channel state information feedback according to some embodiments of the present disclosure;

图6为本公开的一些实施例的信道状态信息反馈的获取方法流程图；FIG. 6 is a flowchart of a method for acquiring channel state information feedback according to some embodiments of the present disclosure;

图7为本公开的一些实施例的接入设备的示意图；FIG. 7 is a schematic diagram of an access device according to some embodiments of the present disclosure; FIG.

图8为本公开的一些实施例的接入设备的示意图；8 is a schematic diagram of an access device according to some embodiments of the present disclosure;

图9为本公开的一些实施例的终端设备的示意图；9 is a schematic diagram of a terminal device according to some embodiments of the present disclosure;

图10为本公开的一些实施例的终端设备的示意图；FIG. 10 is a schematic diagram of a terminal device according to some embodiments of the present disclosure; FIG.

图11为本公开的一些实施例的信道状态信息反馈的获取***的示意图。11 is a schematic diagram of an acquisition system for channel state information feedback according to some embodiments of the present disclosure.

具体实施方式detailed description

下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

参见图3，图3为本公开实施例提供的网络结构示意图，如图3所示，包括终端设备31和接入设备32。在本公开的实施例中，终端设备31(UE) 可以是移动电话(或手机)，或者其他能够发送或接收无线信号的设备，包括用户设备(终端)、个人数字助理(PDA)、无线调制解调器、无线通信装置、手持装置、膝上型计算机、无绳电话、无线本地回路(WLL)站、能够将移动信号转换为WiFi信号的CPE(Customer Premise Equipment，客户终端)或移动智能热点、智能家电、或其他不通过人的操作就能自发与移动通信网络通信的设备等。Referring to FIG. 3, FIG. 3 is a schematic structural diagram of a network according to an embodiment of the present disclosure. As shown in FIG. 3, the terminal device 31 and the access device 32 are included. In an embodiment of the present disclosure, the terminal device 31 (UE) It can be a mobile phone (or cell phone), or other device capable of transmitting or receiving wireless signals, including user equipment (terminal), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless Telephone, wireless local loop (WLL) station, CPE (Customer Premise Equipment) capable of converting mobile signals into WiFi signals, mobile smart hotspots, smart home appliances, or other non-human operations can spontaneously communicate with mobile communication networks Communication equipment, etc.

在本公开的实施例中，接入设备32可以是基站，基站的形式不限，可以是宏基站(Macro Base Station)、微基站(Pico Base Station)、Node B(3G移动基站的称呼)、增强型基站(ENB)、家庭增强型基站(Femto eNB或Home eNode B或Home eNB或HNEB)、中继站、接入点、RRU(Remote Radio Unit，远端射频模块)、RRH(Remote Radio Head，射频拉远头)等。In an embodiment of the present disclosure, the access device 32 may be a base station, and the base station is not limited in form, and may be a Macro Base Station, a Pico Base Station, a Node B (a name of a 3G mobile base station), Enhanced Base Station (ENB), Home Enhanced Base Station (Femto eNB or Home eNode B or Home eNB or HNEB), Relay Station, Access Point, RRU (Remote Radio Unit), RRH (Remote Radio Head) Pull the head) and so on.

基于图3所示的网络结构，参见图4，图中示出了一种信道状态信息反馈的获取方法，该方法的执行主体为接入设备，具体步骤如下：Based on the network structure shown in FIG. 3, referring to FIG. 4, a method for obtaining channel state information feedback is shown. The execution body of the method is an access device, and the specific steps are as follows:

步骤S401、发送第一导频信号。Step S401: Send a first pilot signal.

可选地，在步骤S401之前，接入设备可以配置第一导频信号和第二导频信号。其中，第一导频信号具有N1个端口，第二导频信号具有N2个端口，其中，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。Optionally, before step S401, the access device may configure the first pilot signal and the second pilot signal. The first pilot signal has N1 ports, and the second pilot signal has N2 ports, where N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

步骤S402、接收第一反馈信息，第一反馈信息反映第一导频信号上测量的信道状态。Step S402: Receive first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal.

步骤S403、发送第二导频信号。Step S403: Send a second pilot signal.

可选地，在本实施例中，上述第一反馈信息可以用于获取第二导频信号的波束赋形或虚拟化权值。此时在步骤S303中，可以根据第一反馈信息对第二导频信号进行波束赋形或虚拟化，然后发送赋形或虚拟化后的第二导频信号，从而实现波束赋形CSI-RS方案，使得波束赋形CSI-RS方案能够与non-precoded CSI-RS方案结合，进而有效降低本。Optionally, in this embodiment, the foregoing first feedback information may be used to obtain a beamforming or virtualization weight of the second pilot signal. At this time, in step S303, the second pilot signal may be beamformed or virtualized according to the first feedback information, and then the shaped or virtualized second pilot signal is transmitted, thereby implementing beamforming CSI-RS. The scheme enables the beamforming CSI-RS scheme to be combined with the non-precoded CSI-RS scheme, thereby effectively reducing the present.

需要说明的是，在本实施例中第一导频信号和第二导频信号可以但不限于是CSI-RS、CRS等等。It should be noted that, in this embodiment, the first pilot signal and the second pilot signal may be, but are not limited to, CSI-RS, CRS, and the like.

步骤S404、接收第二反馈信息，第二反馈信息反映第二导频信号的信道状态。 Step S404: Receive second feedback information, where the second feedback information reflects a channel state of the second pilot signal.

在本实施例中，第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，第一信道质量信息符CQI1与第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶。In this embodiment, the first feedback information includes one or more of the following: the first precoding matrix indicates the PMI1, the first channel quality information symbol CQI1, and the first 轶 indication RI1, the indication information of the second pilot signal, The first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebooks, and the first channel quality information symbol CQI1 corresponds to the first precoding matrix indicator PMI1, where the first indication indicates RI1 reflects that the first precoding matrix indicates the 轶 of PMI1.

第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。The second feedback information includes one or more of: a second precoding matrix indicating PMI2, a second channel quality information symbol CQI2, and a second 轶 indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 port codes An N2 port precoding matrix, where the second channel quality information symbol CQI2 corresponds to the second precoding matrix indication PMI2, and the second UI indication RI2 reflects that the second precoding matrix indicates PMI2 Hey.

步骤S405、根据第二反馈信息或根据第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据传输格式对下行数据进行赋形。Step S405: Determine a transmission format of the data transmission according to the second feedback information or according to the first feedback information and the second feedback information, and shape the downlink data according to the transmission format.

在本实施例中，可选地，上述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。需要说明的是，在本实施例中上述步骤S405为可选步骤。In this embodiment, optionally, the foregoing transmission format includes one or more of a precoding matrix, a time-frequency resource allocation, and a modulation and coding mode. It should be noted that the above step S405 is an optional step in this embodiment.

在本实施例中，可选地，上述方法还包括：配置第一导频资源和第二导频资源，其中，第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源；或者配置第三导频资源，其中，第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者配置第四导频资源，其中，第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。In this embodiment, optionally, the method further includes: configuring a first pilot resource and a second pilot resource, where the first pilot signal uses the first pilot resource, and the second pilot The signal is used by the second pilot resource; or the third pilot resource is configured, where the first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or The fourth pilot resource, wherein the first pilot signal and the second pilot signal can both use the fourth pilot resource, and the number of antenna ports of the fourth pilot resource changes dynamically or semi-statically between the subframes.

在本实施例中，可选地，上述方法还包括：配置第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。In this embodiment, optionally, the method further includes: configuring a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback, the first The feedback information and the reporting period of the second feedback information are combined or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the first feedback information is triggered by the access device and/or The second feedback information is reported; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback information is aperiodic feedback. The second feedback information is periodic feedback, and the non-periodic feedback is The access device triggers.

在本实施例中，可选地，上述方法还包括：配置第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；发送第一反馈信息和第二反馈信息的反馈参数。In this embodiment, optionally, the method further includes: configuring feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, and enabling/disabling PMI feedback parameters. And all or part of the parameters of the enable/disable RI feedback parameter and the enable/disable CQI feedback parameter; and the feedback parameter of the first feedback information and the second feedback information.

在本实施例中，通过结合non-precoded CSI-RS方案和波束赋形CSI-RS方案，有效降低本实施例中的反馈方案的复杂度和开销。In this embodiment, by combining the non-precoded CSI-RS scheme and the beamforming CSI-RS scheme, the complexity and overhead of the feedback scheme in this embodiment are effectively reduced.

基于图3所示的网络结构，参见图5，图中示出了一种信道状态信息反馈的获取方法，该方法的执行主体为终端设备，具体步骤如下：Based on the network structure shown in FIG. 3, referring to FIG. 5, a method for obtaining channel state information feedback is shown. The execution body of the method is a terminal device, and the specific steps are as follows:

步骤S501、接收第一导频信号。Step S501: Receive a first pilot signal.

步骤S502、发送第一反馈信息，第一反馈信息所述第一导频信号上测量的信道状态。Step S502: Send first feedback information, where the first feedback information is a channel state measured on the first pilot signal.

步骤S503、接收第二导频信号。Step S503, receiving a second pilot signal.

在本实施例中，可选地，第一导频信号具有N1个端口，第二导频信号具有N2个端口，其中，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。In this embodiment, optionally, the first pilot signal has N1 ports, and the second pilot signal has N2 ports, where N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

在本实施例中，可选地，第一导频信号使用第一导频资源，第二导频信号使用第二导频资源，或者第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者第一导频信号和第二导频信号都能使用第四导频资源，第四导频资源的天线端口数在子帧间动态或半静态变化，其中，N1、N2为大于等于1的正整数，N1和N2的数值相同或不同。In this embodiment, optionally, the first pilot signal uses the first pilot resource, the second pilot signal uses the second pilot resource, or the first pilot signal and the second pilot signal correspond to the third pilot N1 ports and N2 ports in the frequency resource; or the fourth pilot resource can be used for both the first pilot signal and the second pilot signal, and the number of antenna ports of the fourth pilot resource is dynamic or semi-static between subframes The variation, wherein N1 and N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

步骤S504、发送第二反馈信息，第二反馈信息反映第二导频信号的信道状态。Step S504: Send second feedback information, where the second feedback information reflects a channel state of the second pilot signal.

在本实施例中，可选地，第一反馈信息用于获取第二导频信号的波束赋形或虚拟化权值。In this embodiment, optionally, the first feedback information is used to obtain a beamforming or virtualization weight of the second pilot signal.

第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，第一信道质量信息符CQI1与第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶。The first feedback information includes one or more of the following: the first precoding matrix indicates the PMI1, the first channel quality information symbol CQI1, and the first 轶 indication RI1, the indication information of the second pilot signal, The first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebooks, and the first channel quality information symbol CQI1 corresponds to the first precoding matrix indicator PMI1, where the first indication indicates RI1 reflects that the first precoding matrix indicates the 轶 of PMI1.

步骤S505、接收根据第二反馈信息或根据第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。Step S505: Receive downlink data that is shaped according to the second feedback information or the transmission format determined according to the first feedback information and the second feedback information.

在本实施例中，步骤S505为可选步骤。可选地，上述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。In this embodiment, step S505 is an optional step. Optionally, the foregoing transmission format includes one or more of a precoding matrix, a time frequency resource allocation, and a modulation and coding mode.

在本实施例中，可选地，上述方法还包括：接收第一反馈信息和第二反馈信息的反馈方式，其中，第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。In this embodiment, the method further includes: receiving a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second feedback information are periodic feedback, and the first feedback information is And the reporting period and the reporting offset of the second feedback information are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second is triggered by the access device. The feedback information is reported; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback information is aperiodic feedback, the first The second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

在本实施例中，可选地，上述方法还包括：接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。In this embodiment, optionally, the method further includes: receiving feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, and enabling/disabling PMI. All or part of the feedback parameters, enable/fail RI feedback parameters, and enable/disable CQI feedback parameters.

在下面的实施例中，以eNB为接入设备，以CSI-RS为导频信号。参见图6，图中示出了一种信道状态信息反馈的获取方法，具体步骤如下：In the following embodiments, the eNB is used as an access device, and the CSI-RS is used as a pilot signal. Referring to FIG. 6, a method for obtaining channel state information feedback is shown, and the specific steps are as follows:

步骤S601、eNB给UE配置一个第一CSI-RS信号(具有N1个端口)， eNB向UE发送第一CSI-RS信号。Step S601: The eNB configures a first CSI-RS signal (having N1 ports) to the UE, The eNB transmits a first CSI-RS signal to the UE.

步骤S602、UE测量第一CSI-RS信号进行信道估计，并在N1个端口码本中选择一个指向N1个端口预编码矩阵的预编码矩阵指示(PMI)，UE将N1个端口PMI上报给eNB，定义为PMI1。Step S602: The UE measures the first CSI-RS signal for channel estimation, and selects a precoding matrix indication (PMI) that points to the N1 port precoding matrix in the N1 port codebook, and the UE reports the N1 port PMI to the eNB. , defined as PMI1.

可选地，UE还可以额外上报PMI1对应的CQI给eNB，定义为CQI1。Optionally, the UE may additionally report the CQI corresponding to the PMI1 to the eNB, which is defined as CQI1.

可选地，UE还可以额外上报秩指示RI，其反映PMI1的秩(预编码矩阵的列数)，定义为RI1。Optionally, the UE may additionally report the rank indication RI, which reflects the rank of the PMI1 (the number of columns of the precoding matrix), and is defined as RI1.

需要说明的是，如果RI1未上报，PMI1的秩将由eNB预先配置或者在协议中固定。可选地，PMI1的秩固定为1。It should be noted that if RI1 is not reported, the rank of PMI1 will be pre-configured by the eNB or fixed in the protocol. Optionally, the rank of PMI1 is fixed at 1.

步骤S603、eNB接收第一CSI-RS信号的相应第一CSI反馈。Step S603: The eNB receives a corresponding first CSI feedback of the first CSI-RS signal.

第一CSI反馈至少包括PMI1，可选地，第一CSI反馈还包括：CQI1和/或RI1。The first CSI feedback includes at least PMI1. Optionally, the first CSI feedback further includes: CQI1 and/or RI1.

步骤S604、eNB使用PMI1(或者RI1)确定一个波束赋形/虚拟化矩阵。Step S604, the eNB determines a beamforming/virtualization matrix using PMI1 (or RI1).

步骤S505、eNB配置第二CSI-RS信号(具有N2个端口)并将第二CSI-RS信号指示给UE。Step S505, the eNB configures a second CSI-RS signal (having N2 ports) and indicates the second CSI-RS signal to the UE.

步骤S606、eNB使用步骤S504确定的波束赋形/虚拟化矩阵对第二CSI-RS信号进行波束赋形/虚拟化。eNB向UE发送赋形后的第二CSI-RS信号。Step S606: The eNB performs beamforming/virtualization on the second CSI-RS signal by using the beamforming/virtualization matrix determined in step S504. The eNB sends the shaped second CSI-RS signal to the UE.

步骤S607、UE测量赋形后的第二CSI-RS信号，上报PMI2(PMI2指向N2个端口码本中的一个N2个端口预编码矩阵)。Step S607: The UE measures the shaped second CSI-RS signal, and reports PMI2 (PMI2 points to one N2 port precoding matrix in the N2 port codebook).

可选地，在本步骤中还可以上报CQI2和RI2。Optionally, CQI2 and RI2 may also be reported in this step.

步骤S608、eNB接收UE反馈的PMI2。Step S608, the eNB receives the PMI2 fed back by the UE.

可选地，在本步骤中可以UE反馈的信息还包括CQI2/RI2。Optionally, the information that can be fed back by the UE in this step further includes CQI2/RI2.

步骤S609、eNB根据第二CSI-RS信号的反馈确定下行数据的传输格式，或者eNB根据第一CSI-RS信号的反馈和第二CSI-RS信号的反馈确定下行数据的传输格式。Step S609: The eNB determines a transmission format of the downlink data according to the feedback of the second CSI-RS signal, or the eNB determines a transmission format of the downlink data according to the feedback of the first CSI-RS signal and the feedback of the second CSI-RS signal.

需要说明的是，上述传输格式包括如下一项或者多项：预编码矩阵、时频资源分配和调制编码方式，上述多项可以理解为上述三项的结合或该结合中的一个子集。 It should be noted that the foregoing transmission format includes one or more of the following: a precoding matrix, a time-frequency resource allocation, and a modulation and coding mode, and the foregoing plurality may be understood as a combination of the foregoing three items or a subset of the combinations.

步骤S610、eNB步骤S609确定的传输格式向UE传输下行数据。Step S610: The transport format determined by the eNB in step S609 transmits downlink data to the UE.

下面结合三种配置方式介绍本实施例中的反馈配置。The feedback configuration in this embodiment is introduced in the following three combinations.

配置方式一、Configuration method

配置一个CSI进程与两个CSI-RS资源相关，一个CSI-RS资源采用N1个端口未预编码CSI-RS，另一个采用N2个端口波束赋形CSI-RS。第一导频信号对应第一CSI-RS资源，第二导频信号对应第二CSI-RS资源。A CSI process is configured to be associated with two CSI-RS resources. One CSI-RS resource uses N1 ports without precoding CSI-RS, and the other uses N2 port beamforming CSI-RS. The first pilot signal corresponds to the first CSI-RS resource, and the second pilot signal corresponds to the second CSI-RS resource.

上述每个CSI-RS资源独立配置以下参数：子帧配置、CSI-RS配置、PDSCH与CSI-RS功率比Pc和天线端口数。当然可以理解的是，也不排除其他配置参数。Each of the above CSI-RS resources independently configures the following parameters: a subframe configuration, a CSI-RS configuration, a PDSCH and CSI-RS power ratio Pc, and an antenna port number. Of course, it can be understood that other configuration parameters are not excluded.

在本实施例中，可以为每个CSI-RS资源独立配置测量限制(MR)。例如第一CSI-RS资源(未预编码)的MR配置为OFF，第二CSI-RS资源(波束赋形)的MR配置为ON。需要说明的是，两个CSI-RS资源的MR配置可以相同也可以不同。对于一个CSI-RS资源，如果测量限制配置为开启(ON)，则UE使用一组特定的时间资源进行信道测量，否则UE进行信道测量使用的时间资源不受限制。作为一个例子，则连限制配置开启的时候，UE使用最近一个包含CSI-RS导频的子帧进行信道测量。In this embodiment, measurement limits (MR) can be independently configured for each CSI-RS resource. For example, the MR configuration of the first CSI-RS resource (not precoded) is OFF, and the MR configuration of the second CSI-RS resource (beamforming) is ON. It should be noted that the MR configurations of the two CSI-RS resources may be the same or different. For a CSI-RS resource, if the measurement limit is configured to be ON, the UE uses a specific set of time resources for channel measurement, otherwise the time resource used by the UE for channel measurement is not limited. As an example, when the restricted configuration is enabled, the UE uses the most recent subframe containing the CSI-RS pilot for channel measurement.

在本实施例中，每个CSI上报可以基于第一CSI-RS资源或者第二CSI-RS资源。CSI上报与其对应的CSI-RS资源的映射关系由隐式确定。例如，通过CSI反馈的类型(周期或非周期)，其上报子帧和/或其他参数。或者使用显式信令指示UE基于哪个CSI-RS资源生成一个特殊的CSI上报。In this embodiment, each CSI report may be based on a first CSI-RS resource or a second CSI-RS resource. The mapping relationship between CSI reporting and its corresponding CSI-RS resources is implicitly determined. For example, by the type of CSI feedback (periodic or aperiodic), it reports subframes and/or other parameters. Or use explicit signaling to indicate which CSI-RS resource the UE generates a special CSI report.

上报方式一、周期性CSI反馈基于第一CSI-RS资源，非周期CSI反馈基于第二CSI-RS资源。Reporting mode 1: The periodic CSI feedback is based on the first CSI-RS resource, and the aperiodic CSI feedback is based on the second CSI-RS resource.

上报方式二、当两个CSI反馈都使用动态信令非周期出发，当eNB使用动态信令触发一个CSI上报，动态信令指示使用哪个CSI-RS资源测量CQI。Reporting mode 2: When both CSI feedbacks are started using dynamic signaling aperiodic, when the eNB uses dynamic signaling to trigger a CSI report, the dynamic signaling indicates which CSI-RS resource is used to measure the CQI.

上报方式三、当两个CSI反馈都试用周期性反馈，CSI上报所在的子帧确定了CSI的类型以及用于CSI测量的CSI-RS资源的索引。In the third mode, when both CSI feedbacks are used for periodic feedback, the subframe in which the CSI is reported determines the type of CSI and the index of CSI-RS resources used for CSI measurement.

对于周期反馈，eNB可以为每个CSI-RS资源独立配置一个CSI上报周期和偏移。一种可能是一个CSI的周期(例如第一CSI-RS资源)大于另一个CSI的周期(例如第二CSI-RS资源)。进一步，不排除一个CSI的上报周期 (例如第一CSI-RS资源)是另一个CSI的上报周期(例如第二CSI-RS资源)的整数倍。每个上报时刻，UE上报相应CSI-RS资源的CSI。For periodic feedback, the eNB may independently configure one CSI reporting period and offset for each CSI-RS resource. One possibility is that one CSI period (eg, the first CSI-RS resource) is greater than another CSI period (eg, the second CSI-RS resource). Further, a CSI reporting period is not excluded. (eg, the first CSI-RS resource) is an integer multiple of another CSI reporting period (eg, the second CSI-RS resource). At each reporting time, the UE reports the CSI of the corresponding CSI-RS resource.

例如：假设第一CSI-RS资源和第二CSI-RS资源分别表示为P1和P2，其中P1＝MP2，这里M＞＝1，同时上报偏移配置为O1/O2。UE上报第一CSI-RS资源的CSI时所在的子帧满足For example, it is assumed that the first CSI-RS resource and the second CSI-RS resource are respectively represented as P1 and P2, where P1=MP2, where M>=1, and the reported offset configuration is O1/O2. The subframe in which the CSI of the first CSI-RS resource is reported by the UE is satisfied.

上报第二CSI-RS资源的CSI所在的子帧满足The subframe in which the CSI of the second CSI-RS resource is reported is satisfied.

其中n_f和n_s是子帧数和时隙数。Where n _f and n _s are the number of subframes and the number of slots.

对于两个CSI-RS资源的CSI在同一子帧的PUCCH上上报时，两个CSI可以同时传输或只有一个被传输，另一个被丢弃。可选地，一个CSI比另一个CSI的优先级更高，例如当与第二CSI-RS资源的CSI冲突时，上报第一CSI-RS资源的CSI。When CSIs of two CSI-RS resources are reported on the PUCCH of the same subframe, two CSIs may be transmitted simultaneously or only one is transmitted, and the other is discarded. Optionally, one CSI has a higher priority than another CSI, for example, when the CSI of the second CSI-RS resource conflicts with the CSI of the first CSI-RS resource.

对于非周期反馈，eNB可以触发任何一个CSI-RS资源的CSI，或者同时触发两个CSI-RS资源的CSI。下表1给出使用2bit触发的触发表实例，包括四个触发状态。For aperiodic feedback, the eNB may trigger the CSI of any one CSI-RS resource or simultaneously trigger the CSI of two CSI-RS resources. Table 1 below gives an example of a trigger table using a 2-bit trigger, including four trigger states.

表1Table 1

配置方式二、Configuration method 2

在本实施例中，配置一个CSI进程与一个N端口CSI-RS资源相关。基于CSI-RS资源，可以上报至多两个CSI，两个CSI可以表示为第一CSI反馈(CSI1)和第二CSI反馈(CSI2)。In this embodiment, a CSI process is configured to be associated with an N-port CSI-RS resource. Based on the CSI-RS resources, up to two CSIs can be reported, and the two CSIs can be represented as a first CSI feedback (CSI1) and a second CSI feedback (CSI2).

在本实施例中，对于每个CSI(CSI1或CSI2)，UE使用CSI-RS资源的一个天线端口子集进行反馈。例如，UE使用N端口CSI-RS中的N1/N2个端口反馈CSI1/CSI2。这样，天线端口数需要满足N1＜＝N，及N2＜＝N。也可以 N1＝N(第一CSI信号使用N个端口)，N2＜＝N(第二CSI信号使用N个端口的子集)。In this embodiment, for each CSI (CSI1 or CSI2), the UE uses a subset of antenna ports of the CSI-RS resources for feedback. For example, the UE feeds back CSI1/CSI2 using N1/N2 ports in the N-port CSI-RS. Thus, the number of antenna ports needs to satisfy N1 <= N, and N2 <= N. Also N1 = N (the first CSI signal uses N ports), N2 <= N (the second CSI signal uses a subset of N ports).

天线端口数指示(N1或N2)也需要被指示给UE用于正确的信道测量，可以采用半静态或动态的方式。两个端口的配置和通知方式可以相同也可以不同。例如：可以N1使用半静态信令(取固定值)，而N2使用动态信令且可以每个子帧动态变化。The antenna port number indication (N1 or N2) also needs to be indicated to the UE for correct channel measurement, either in a semi-static or dynamic manner. The configuration and notification of the two ports can be the same or different. For example, N1 can use semi-static signaling (take a fixed value), while N2 uses dynamic signaling and can dynamically change every subframe.

对于周期CSI上报，第一/第二CSI反馈的上报周期和偏移可以独立配置。可选地，第一CSI反馈的上报周期大于第二CSI反馈的上报周期。进一步，第一CSI反馈的上报周期可以是第二CSI反馈的上报周期的整数倍。对于非周期CSI上报，eNB可以触发一个CSI1或CSI2上报，或者触发CSI1和CSI2上报或者均不上报。下表2中给出使用2bit触发的触发表实例，包括4个触发状态。For periodic CSI reporting, the reporting period and offset of the first/second CSI feedback can be configured independently. Optionally, the reporting period of the first CSI feedback is greater than the reporting period of the second CSI feedback. Further, the reporting period of the first CSI feedback may be an integer multiple of the reporting period of the second CSI feedback. For a non-periodic CSI reporting, the eNB may trigger a CSI1 or CSI2 report, or trigger CSI1 and CSI2 to report or not report. An example of a trigger table using a 2-bit trigger is given in Table 2 below, including four trigger states.

表2Table 2

触发比特(2-bits)Trigger bit (2-bits)	UE行为UE behavior
0000	上报第一CSI反馈，不上报第二CSI反馈Report the first CSI feedback and not report the second CSI feedback.
0101	上报第二CSI反馈，不上报第一CSI反馈Report the second CSI feedback and not report the first CSI feedback.
1010	第一CSI反馈和第二CSI反馈均不上报The first CSI feedback and the second CSI feedback are not reported.
1111	第一CSI反馈和第二CSI反馈CSI均上报The first CSI feedback and the second CSI feedback CSI are reported

每个CSI反馈可以独立配置测量限制(MR)。测量限制可以配置为ON或者OFF。可选地，第一CSI反馈的测量限制可以始终配置为OFF，而第二CSI反馈的测量限制始终配置为ON。或者与此相反。此方式既可用于信道测量限制也可用于干扰测量限制。Each CSI feedback can be independently configured with a measurement limit (MR). Measurement limits can be configured to be ON or OFF. Alternatively, the measurement limit of the first CSI feedback may always be configured to be OFF, while the measurement limit of the second CSI feedback is always configured to be ON. Or vice versa. This method can be used for both channel measurement limits and interference measurement limits.

PDSCH(物理下行共享信道)可以进行N端口CSI-RS的速率匹配，除非配置了PQI状态，这样PDSCH速率匹配可以子帧间动态切换。The PDSCH (Physical Downlink Shared Channel) can perform rate matching of the N-port CSI-RS unless the PQI state is configured, so that the PDSCH rate matching can be dynamically switched between subframes.

配置方式三、Configuration method three,

配置一个CSI进程与一个CSI-RS资源相关。该CSI-RS资源的天线端口数不固定，天线端口数可以子帧间动态或者半静态变化。Configure a CSI process to be associated with a CSI-RS resource. The number of antenna ports of the CSI-RS resource is not fixed, and the number of antenna ports may be dynamically or semi-statically changed between subframes.

对于每个CSI反馈，eNB指示CSI-RS的天线端口数，同时也可能指示UE用于CSI测量的CSI-RS配置。UE测量信令指示的CSI-RS并计算CSI。(eNB这样可以向UE透明传输CSI-RS1或者CSI-RS2；但是从UE的角度，其无需知道此CSI-RS是否被赋形。UE只需要接收CSI-RS资源的信息，如端口数N1/N2，并相应进行信道测量。)For each CSI feedback, the eNB indicates the number of antenna ports for the CSI-RS, and may also indicate the CSI-RS configuration used by the UE for CSI measurements. The UE measures the CSI-RS indicated by the signaling and calculates the CSI. (The eNB can transparently transmit CSI-RS1 or CSI-RS2 to the UE; however, from the perspective of the UE, It is not necessary to know if this CSI-RS is shaped. The UE only needs to receive information about CSI-RS resources, such as the number of ports N1/N2, and perform channel measurement accordingly. )

eNB也指示UE以下的全部或者部分参数用于计算CSI，参数包括如下一项或者多项：码本、信道和/或干扰测量配置(如ON/OFF状态)、使能/失效PMI反馈、使能/失效RI反馈和使能/失效CQI反馈。The eNB also indicates that all or part of the parameters below the UE are used to calculate CSI, and the parameters include one or more of the following: codebook, channel and/or interference measurement configuration (such as ON/OFF state), enable/disable PMI feedback, enable Energy/failure RI feedback and enable/disable CQI feedback.

需要说明的是，可以半静态或者动态指示。例如对于触发CSI反馈的每个DL grant(下行调度信令)，其包含码本信息，测量限制ON/OFF状态，PMI/RI/CQI使能或去使能状态。例如：当eNB需要波束赋形虚拟化信息时，eNB在下行链路发送具有N1个端口的CSI-RS1，同时触发UE在上行链路反馈PMI1，且无测量限制。触发CSI上报的动态信令指示UE使用N1个端口码本，去使能测量限制，并只反馈PMI1。当eNB向UE发送具有N2个端口的波束赋形后的CSI-RS2时，eNB可以触发UE上报波束赋形后的CSI-RS的CQI。触发CSI上报的动态信令指示UE使用N2个端口码本，使能测量限制，并反馈PMI2/CQI2/RI2。It should be noted that it can be semi-static or dynamic. For example, for each DL grant (downlink scheduling signaling) that triggers CSI feedback, it includes codebook information, the measurement limits the ON/OFF state, and the PMI/RI/CQI enables or disables the state. For example, when the eNB needs beamforming virtualization information, the eNB transmits CSI-RS1 with N1 ports on the downlink, and triggers the UE to feed back PMI1 on the uplink without any measurement restriction. The dynamic signaling that triggers the CSI reporting indicates that the UE uses the N1 port codebooks to disable the measurement limit and only feeds back PMI1. When the eNB sends the beam-formed CSI-RS2 with N2 ports to the UE, the eNB may trigger the CQI of the CSI-RS after the beamforming is performed by the UE. The dynamic signaling that triggers the CSI reporting indicates that the UE uses the N2 port codebooks to enable the measurement limit and feed back PMI2/CQI2/RI2.

在又一实施例中，参见图7，图中示出了一种接入设备，所述接入设备包括：第一发送模块701，用于发送第一导频信号；第一接收模块702，用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；第二发送模块703，用于发送第二导频信号；第二接收模块704，用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。In another embodiment, referring to FIG. 7, an access device is shown, where the access device includes: a first sending module 701, configured to send a first pilot signal; and a first receiving module 702, For receiving the first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; the second sending module 703 is configured to send a second pilot signal; and the second receiving module 704 is configured to: Receiving second feedback information, the second feedback information reflects a channel state of the second pilot signal.

在本实施例中，可选地，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值；所述接入设备还包括：赋形模块，用于根据所述第一反馈信息对所述第二导频信号进行波束赋形或虚拟化。In this embodiment, the first feedback information is used to acquire a beamforming or a virtualization weight of the second pilot signal; the access device further includes: a shaping module, configured to: The second pilot signal is beamformed or virtualized according to the first feedback information.

在本实施例中，可选地，所述接入设备还包括：确定模块，用于根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据所述传输格式对下行数据进行赋形。In this embodiment, the access device further includes: a determining module, configured to determine, according to the second feedback information, or according to the first feedback information and the second feedback information, a transmission format of the data transmission, And shaping the downlink data according to the transmission format.

在本实施例中，可选地，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。 In this embodiment, optionally, the transmission format includes one or more of a precoding matrix, a time frequency resource allocation, and a modulation and coding mode.

在本实施例中，可选地，所述接入设备还包括：第一配置模块，用于配置所述第一导频信号和第二导频信号，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。In this embodiment, the access device further includes: a first configuration module, configured to configure the first pilot signal and the second pilot signal, where the first pilot signal has N1 ports, the second pilot signal has N2 ports, N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different.

在本实施例中，可选地，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶。所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。In this embodiment, optionally, the first feedback information includes one or more of the following: a first precoding matrix indication PMI1, a first channel quality information symbol CQI1, and a first 轶 indication RI1, a second guide The indication information of the frequency signal, wherein the first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebook, the first channel quality information symbol CQI1 and the first precoding matrix Instructing PMI1 to correspond, the first indication RI1 reflects that the first precoding matrix indicates the 轶 of PMI1. The second feedback information includes one or more of the following: a second precoding matrix indication PMI2, a second channel quality information symbol CQI2, and a second UI indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 An N2 port precoding matrix in the port codebook, the second channel quality information symbol CQI2 corresponding to the second precoding matrix indication PMI2, the second UI indication RI2 reflecting the second precoding matrix indication The flaw of PMI2.

在本实施例中，可选地，所述接入设备还包括：第二配置模块，用于配置第一导频资源和第二导频资源，其中，所述第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源，或者，配置第三导频资源，其中，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者，配置第四导频资源，其中，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。In this embodiment, the access device further includes: a second configuration module, configured to configure a first pilot resource and a second pilot resource, where the first pilot signal uses the a first pilot resource, where the second pilot signal uses the second pilot resource, or a third pilot resource is configured, where the first pilot signal and the second pilot signal correspond to a third pilot N1 ports and N2 ports in the frequency resource; or, configuring a fourth pilot resource, wherein the first pilot signal and the second pilot signal can use the fourth pilot resource, the fourth guide The number of antenna ports of the frequency resource varies dynamically or semi-statically between subframes.

在本实施例中，可选地，所述接入设备还包括：第三配置模块，用于配置第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。 In this embodiment, optionally, the access device further includes: a third configuration module, configured to configure a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the second The feedback information is periodic feedback, and the reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or the first feedback information and the second feedback information are aperiodic feedback, and the access is The device triggers the first feedback information and/or the second feedback information to report; or the first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or The first feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.

在本实施例中，可选地，所述接入设备还包括：第四配置模块，用于配置所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；发送第一反馈信息和第二反馈信息的反馈参数。In this embodiment, optionally, the access device further includes: a fourth configuration module, configured to configure feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channels, and/or All or part of the interference measurement configuration parameter, the enable/fail PMI feedback parameter, the enable/fail RI feedback parameter, and the enable/fail CQI feedback parameter; and the feedback parameter of the first feedback information and the second feedback information.

本实施例中，上述接入设备可以是图4所示的实施例中的接入设备，且图4所示的实施例中接入设备的任何实施方式都可以被本实施例中的接入设备所实现，这里不再赘述。In this embodiment, the foregoing access device may be the access device in the embodiment shown in FIG. 4, and any implementation manner of the access device in the embodiment shown in FIG. 4 may be accessed in this embodiment. The device is implemented and will not be described here.

在又一实施例中，参见图8，图中示出了一种接入设备，包括：第一处理器800，用于读取第一存储器820中的程序，执行下列过程：通过第一收发机810发送第一导频信号；接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；发送第二导频信号；接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。In another embodiment, referring to FIG. 8, an access device is illustrated, including: a first processor 800, configured to read a program in the first memory 820, and perform the following process: through the first transceiver The machine 810 sends a first pilot signal, receives first feedback information, the first feedback information reflects a channel state measured on the first pilot signal, transmits a second pilot signal, and receives second feedback information, The second feedback information reflects a channel state of the second pilot signal.

其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由第一处理器800代表的一个或多个处理器和第一存储器820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。第一收发机810可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，第一处理器800负责管理总线架构和通常的处理，第一存储器820可以存储第一处理器800在执行操作时所使用的数据。Wherein, in FIG. 8, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the first processor 800 and various circuits of the memory represented by the first memory 820. . 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 first transceiver 810 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. The first processor 800 is responsible for managing the bus architecture and normal processing for different user devices, and the first memory 820 can store data used by the first processor 800 when performing operations.

在又一实施例中，参见图9，图中示出了一种终端设备，所述终端设备包括：第三接收模块901，用于接收第一导频信号；第三发送模块902，用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；第四接收模块903，用于接收第二导频信号；第四发送模块904，用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。 In another embodiment, referring to FIG. 9, a terminal device is shown, where the terminal device includes: a third receiving module 901, configured to receive a first pilot signal; and a third sending module 902, configured to Sending a first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; a fourth receiving module 903, configured to receive a second pilot signal; and a fourth sending module 904, configured to send The second feedback information reflects the channel state of the second pilot signal.

在本实施例中，可选地，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值。In this embodiment, the first feedback information is used to obtain a beamforming or virtualization weight of the second pilot signal.

在本实施例中，可选地，所述终端设备还包括：第五接收模块，用于接收根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。In this embodiment, the terminal device further includes: a fifth receiving module, configured to receive a transmission format determined according to the second feedback information or according to the first feedback information and the second feedback information Downward data after shape.

在本实施例中，可选地，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。In this embodiment, optionally, the transmission format includes one or more of a precoding matrix, a time frequency resource allocation, and a modulation and coding mode.

在本实施例中，可选地，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。In this embodiment, optionally, the first pilot signal has N1 ports, the second pilot signal has N2 ports, N1, N2 are positive integers greater than or equal to 1, and values of N1 and N2 are Same or different.

在本实施例中，可选地，所述第一导频信号使用第一导频资源，所述第二导频信号使用第二导频资源，或者，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口，其中，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同；或者，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。In this embodiment, optionally, the first pilot signal uses a first pilot resource, the second pilot signal uses a second pilot resource, or the first pilot signal and the second pilot signal The pilot signal corresponds to N1 ports and N2 ports in the third pilot resource, where N1, N2 are positive integers greater than or equal to 1, and the values of N1 and N2 are the same or different; or the first pilot signal The fourth pilot resource can be used for both the second pilot signal and the number of antenna ports of the fourth pilot resource is dynamically or semi-statically changed between subframes.

在本实施例中，可选地，所述终端设备还包括：第六接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈方式，其中，所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者，所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者，所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者，所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。In this embodiment, optionally, the terminal device further includes: a sixth receiving module, configured to receive a feedback manner of the first feedback information and the second feedback information, where the first feedback information and the first The feedback information is periodic feedback, and the reporting period of the first feedback information and the second feedback information The first feedback information and the second feedback information are triggered by the access device, and the first feedback information and/or the second feedback information are reported by the access device; or The first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or the first feedback information is aperiodic feedback, and the second feedback information is a period. Feedback, aperiodic feedback is triggered by the access device.

在本实施例中，可选地，所述终端设备还包括：第七接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。In this embodiment, optionally, the terminal device further includes: a seventh receiving module, configured to receive feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channels, and/or interference All or part of the parameters of the configuration parameters, enable/fail PMI feedback parameters, enable/fail RI feedback parameters, and enable/disable CQI feedback parameters.

本实施例中，上述终端设备可以是图5所示的实施例中的终端设备，且图5所示的实施例中终端设备的任何实施方式都可以被本实施例中的终端设备所实现，这里不再赘述。In this embodiment, the foregoing terminal device may be the terminal device in the embodiment shown in FIG. 5, and any implementation manner of the terminal device in the embodiment shown in FIG. 5 may be implemented by the terminal device in this embodiment. I won't go into details here.

在又一实施例中，参见图10，图中示出了一种终端设备，包括：第二处理器1000，用于读取第二存储器1020中的程序，执行下列过程：通过第二收发机1010接收第一导频信号；发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；接收第二导频信号；发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。In still another embodiment, referring to FIG. 10, a terminal device is illustrated, including: a second processor 1000, configured to read a program in the second memory 1020, and perform the following process: through the second transceiver 1010: Receive a first pilot signal; send first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal; receive a second pilot signal; and send second feedback information, where The two feedback information reflects the channel state of the second pilot signal.

其中，在图10中，总线架构可以包括任意数量的互联的总线和桥，具体由第二处理器1000代表的一个或多个处理器和第二存储器1020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。第二收发机1010可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口1030还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。第二处理器1000负责管理总线架构和通常的处理，第二存储器1020可以存储第二处理器1000在执行操作时所使用的数据。 Wherein, in FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the second processor 1000 and various circuits of the memory represented by the second memory 1020. . 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 second transceiver 1010 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1030 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like. The second processor 1000 is responsible for managing the bus architecture and normal processing, and the second memory 1020 can store data used by the second processor 1000 when performing operations.

在又一实施例中，参见图11，图中示出了一种信道状态信息反馈的获取***，包括：接入设备1101，用于发送第一导频信号；所述接入设备1101，还用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；所述接入设备1101，还用于发送第二导频信号；所述接入设备1101，还用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态；终端设备1102，用于接收第一导频信号；所述终端设备1102，还用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；所述终端设备1102，还用于接收第二导频信号；所述终端设备1102，还用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。In another embodiment, referring to FIG. 11, an acquisition system for channel state information feedback is provided, including: an access device 1101, configured to send a first pilot signal; and the access device 1101, further For receiving the first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; the access device 1101 is further configured to send a second pilot signal; the access device 1101. The method is further configured to receive a second feedback information, where the second feedback information reflects a channel state of the second pilot signal, and the terminal device 1102 is configured to receive a first pilot signal, where the terminal device 1102 is further used. Transmitting the first feedback information, the first feedback information reflects a channel state measured on the first pilot signal; the terminal device 1102 is further configured to receive a second pilot signal; the terminal device 1102, further And configured to send second feedback information, where the second feedback information reflects a channel state of the second pilot signal.

应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定In various embodiments of the present disclosure, it should be understood that the size of the serial numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present disclosure. Implementation process constitutes any qualification

另外，本文中术语“***”和“网络”在本文中常可互换使用。Additionally, the terms "system" and "network" are used interchangeably herein.

应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally means before The post-association object is an "or" relationship.

在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined from A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

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

另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。 The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. Within the scope of protection of the present disclosure.

Claims

一种信道状态信息反馈的获取方法，包括：A method for obtaining channel state information feedback includes:

发送第一导频信号；Sending a first pilot signal;

接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；Receiving first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

发送第二导频信号；Sending a second pilot signal;

接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。Receiving second feedback information, the second feedback information reflecting a channel state of the second pilot signal.
根据权利要求1所述的方法，还包括：The method of claim 1 further comprising:

根据所述第一反馈信息对所述第二导频信号进行波束赋形或虚拟化，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值；Deforming or virtualizing the second pilot signal according to the first feedback information, where the first feedback information is used to obtain a beamforming or virtualization weight of the second pilot signal;

所述发送第二导频信号，包括：The sending the second pilot signal includes:

发送波束赋形或虚拟化后的第二导频信号。Transmit a beamformed or virtualized second pilot signal.
根据权利要求1所述的方法，还包括：The method of claim 1 further comprising:

根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据所述传输格式对下行数据进行赋形。Determining a transmission format of the data transmission according to the second feedback information or according to the first feedback information and the second feedback information, and shaping the downlink data according to the transmission format.
根据权利要求3所述的方法，其中，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。The method of claim 3, wherein the transmission format comprises one or more of a precoding matrix, a time-frequency resource allocation, and a modulation coding scheme.
根据权利要求1所述的方法，还包括：The method of claim 1 further comprising:

配置所述第一导频信号和第二导频信号，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。Configuring the first pilot signal and the second pilot signal, wherein the first pilot signal has N1 ports, the second pilot signal has N2 ports, and N1, N2 are greater than or equal to 1. Integer, the values of N1 and N2 are the same or different.
根据权利要求5所述的方法，其中，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1、第一轶指示RI1和第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶； The method according to claim 5, wherein the first feedback information comprises one or more of: a first precoding matrix indication PMI1, a first channel quality information symbol CQI1, a first 轶 indication RI1 and a second guide The indication information of the frequency signal, wherein the first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebook, the first channel quality information symbol CQI1 and the first precoding matrix Instructing PMI1 to correspond, the first indication RI1 reflecting that the first precoding matrix indicates P轶 of PMI1;

所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。The second feedback information includes one or more of the following: a second precoding matrix indication PMI2, a second channel quality information symbol CQI2, and a second UI indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 An N2 port precoding matrix in the port codebook, the second channel quality information symbol CQI2 corresponding to the second precoding matrix indication PMI2, the second UI indication RI2 reflecting the second precoding matrix indication The flaw of PMI2.
根据权利要求5所述的方法，还包括：The method of claim 5 further comprising:

配置第一导频资源和第二导频资源，其中，所述第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源，或者Configuring a first pilot resource and a second pilot resource, where the first pilot signal uses the first pilot resource, the second pilot signal uses the second pilot resource, or

配置第三导频资源，其中，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者Configuring a third pilot resource, where the first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or

配置第四导频资源，其中，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。And configuring a fourth pilot resource, where the first pilot signal and the second pilot signal can use a fourth pilot resource, where the number of antenna ports of the fourth pilot resource is dynamic or semi-static between subframes Variety.
根据权利要求1所述的方法，还包括：The method of claim 1 further comprising:

配置第一反馈信息和第二反馈信息的反馈方式，其中，Configuring a feedback manner of the first feedback information and the second feedback information, where

所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者The first feedback information and the second feedback information are periodic feedback, and the reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or

所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者The first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second feedback information is triggered by the access device; or

所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者The first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or

所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。The first feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.
根据权利要求1所述的方法，还包括：The method of claim 1 further comprising:

配置所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；Configuring feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, enable/fail PMI feedback parameters, enable/fail RI feedback parameters, and enable/disable All or part of the parameters of the CQI feedback parameter;

发送第一反馈信息和第二反馈信息的反馈参数。Sending feedback parameters of the first feedback information and the second feedback information.
一种信道状态信息反馈的获取方法，包括：A method for obtaining channel state information feedback includes:

接收第一导频信号； Receiving a first pilot signal;

发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；Sending first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

接收第二导频信号；Receiving a second pilot signal;

发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。Sending second feedback information, the second feedback information reflecting a channel state of the second pilot signal.
根据权利要求10所述的方法，其中，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值。The method of claim 10, wherein the first feedback information is used to acquire beamforming or virtualization weights of the second pilot signal.
根据权利要求10所述的方法，还包括：The method of claim 10 further comprising:

接收根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。Receiving downlink data shaped according to the second feedback information or the transmission format determined according to the first feedback information and the second feedback information.
根据权利要求12所述的方法，其中，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。The method of claim 12, wherein the transmission format comprises one or more of a precoding matrix, a time-frequency resource allocation, and a modulation coding scheme.
根据权利要求10所述的方法，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。The method according to claim 10, wherein said first pilot signal has N1 ports, said second pilot signal has N2 ports, N1, N2 are positive integers greater than or equal to 1, N1 and N2 The values are the same or different.
根据权利要求14所述的方法，其中，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶；The method according to claim 14, wherein the first feedback information comprises one or more of: a first precoding matrix indicating PMI1, a first channel quality information symbol CQI1, and a first one indicating RI1, and a second The indication information of the pilot signal, wherein the first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebook, the first channel quality information symbol CQI1 and the first precoding The matrix indicates PMI1, and the first 轶 indicates that RI1 reflects that the first precoding matrix indicates P轶 of PMI1;

所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。The second feedback information includes one or more of the following: a second precoding matrix indication PMI2, a second channel quality information symbol CQI2, and a second UI indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 An N2 port precoding matrix in the port codebook, the second channel quality information symbol CQI2 corresponding to the second precoding matrix indication PMI2, the second UI indication RI2 reflecting the second precoding matrix indication The flaw of PMI2.
根据权利要求14所述的方法，其中，The method of claim 14 wherein

所述第一导频信号使用第一导频资源，所述第二导频信号使用第二导频资源，或者 The first pilot signal uses a first pilot resource, the second pilot signal uses a second pilot resource, or

所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者The first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or

所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Both the first pilot signal and the second pilot signal can use a fourth pilot resource, and the number of antenna ports of the fourth pilot resource changes dynamically or semi-statically between subframes.
根据权利要求10所述的方法，还包括：The method of claim 10 further comprising:

接收所述第一反馈信息和第二反馈信息的反馈方式，其中，Receiving a feedback manner of the first feedback information and the second feedback information, where

所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者The first feedback information and the second feedback information are periodic feedback, and the reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or

所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者The first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second feedback information is triggered by the access device; or

所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者The first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or

所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。The first feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.
根据权利要求10所述的方法，还包括：The method of claim 10 further comprising:

接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。Receiving feedback parameters of the first feedback information and the second feedback information, including codebook parameters, channel and/or interference measurement configuration parameters, enable/fail PMI feedback parameters, enable/fail RI feedback parameters, and enabling/disabling All or part of the parameters in the CQI feedback parameters.
一种接入设备，包括：An access device comprising:

第一发送模块，用于发送第一导频信号；a first sending module, configured to send a first pilot signal;

第一接收模块，用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；a first receiving module, configured to receive first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

第二发送模块，用于发送第二导频信号；a second sending module, configured to send a second pilot signal;

第二接收模块，用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。The second receiving module is configured to receive second feedback information, where the second feedback information reflects a channel state of the second pilot signal.
根据权利要求19所述的接入设备，其中，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值；The access device according to claim 19, wherein the first feedback information is used to acquire a beamforming or virtualization weight of the second pilot signal;

所述接入设备还包括：The access device further includes:

赋形模块，用于根据所述第一反馈信息对所述第二导频信号进行波束赋形或虚拟化。a shaping module, configured to perform beam assignment on the second pilot signal according to the first feedback information Shape or virtualization.
根据权利要求19所述的接入设备，还包括：The access device of claim 19, further comprising:

确定模块，用于根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定数据传输的传输格式，并根据所述传输格式对下行数据进行赋形。And a determining module, configured to determine a transmission format of the data transmission according to the second feedback information or according to the first feedback information and the second feedback information, and shape the downlink data according to the transmission format.
根据权利要求21所述的接入设备，其中，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。The access device of claim 21, wherein the transmission format comprises one or more of a precoding matrix, a time-frequency resource allocation, and a modulation and coding scheme.
根据权利要求19所述的接入设备，还包括：The access device of claim 19, further comprising:

第一配置模块，用于配置所述第一导频信号和第二导频信号，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。a first configuration module, configured to configure the first pilot signal and the second pilot signal, where the first pilot signal has N1 ports, and the second pilot signal has N2 ports, N1, N2 is a positive integer greater than or equal to 1, and the values of N1 and N2 are the same or different.
根据权利要求23所述的接入设备，其中，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶；The access device according to claim 23, wherein the first feedback information comprises one or more of: a first precoding matrix indicating PMI1, a first channel quality information symbol CQI1, and a first 轶 indication RI1, The indication information of the second pilot signal, where the first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebook, the first channel quality information symbol CQI1 and the first The precoding matrix indicates PMI1 correspondence, and the first 轶 indicates that RI1 reflects that the first precoding matrix indicates P轶 of PMI1;

所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。The second feedback information includes one or more of the following: a second precoding matrix indication PMI2, a second channel quality information symbol CQI2, and a second UI indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 An N2 port precoding matrix in the port codebook, the second channel quality information symbol CQI2 corresponding to the second precoding matrix indication PMI2, the second UI indication RI2 reflecting the second precoding matrix indication The flaw of PMI2.
根据权利要求23所述的接入设备，还包括：The access device of claim 23, further comprising:

第二配置模块，用于配置第一导频资源和第二导频资源，其中，所述第一导频信号使用所述第一导频资源，所述第二导频信号使用所述第二导频资源，或者a second configuration module, configured to configure a first pilot resource and a second pilot resource, where the first pilot signal uses the first pilot resource, and the second pilot signal uses the second Pilot resources, or

配置第三导频资源，其中，所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者Configuring a third pilot resource, where the first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or

配置第四导频资源，其中，所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Configuring a fourth pilot resource, wherein the first pilot signal and the second pilot signal can be used The fourth pilot resource, where the number of antenna ports of the fourth pilot resource changes dynamically or semi-statically between subframes.
根据权利要求19所述的接入设备，还包括：The access device of claim 19, further comprising:

第三配置模块，用于配置第一反馈信息和第二反馈信息的反馈方式，其中，a third configuration module, configured to configure a feedback manner of the first feedback information and the second feedback information, where

所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者The first feedback information and the second feedback information are periodic feedback, and the reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or

所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者The first feedback information and the second feedback information are aperiodic feedback, and the first feedback information and/or the second feedback information is triggered by the access device; or

所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者The first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or

所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。The first feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.
根据权利要求19所述的接入设备，还包括：The access device of claim 19, further comprising:

第四配置模块，用于配置所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数；a fourth configuration module, configured to configure feedback parameters of the first feedback information and the second feedback information, including a codebook parameter, a channel and/or an interference measurement configuration parameter, an enable/fail PMI feedback parameter, and an enable/disable RI All or part of the feedback parameters and the enabled/disabled CQI feedback parameters;

发送第一反馈信息和第二反馈信息的反馈参数。Sending feedback parameters of the first feedback information and the second feedback information.
一种终端设备，包括：A terminal device comprising:

第三接收模块，用于接收第一导频信号；a third receiving module, configured to receive a first pilot signal;

第三发送模块，用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；a third sending module, configured to send first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

第四接收模块，用于接收第二导频信号；a fourth receiving module, configured to receive a second pilot signal;

第四发送模块，用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。The fourth sending module is configured to send second feedback information, where the second feedback information reflects a channel state of the second pilot signal.
根据权利要求28所述的终端设备，其中，所述第一反馈信息用于获取所述第二导频信号的波束赋形或虚拟化权值。The terminal device according to claim 28, wherein the first feedback information is used to acquire a beamforming or virtualization weight of the second pilot signal.
根据权利要求28所述的终端设备，其中，所述终端设备还包括：The terminal device according to claim 28, wherein the terminal device further comprises:

第五接收模块，用于接收根据所述第二反馈信息或根据所述第一反馈信息和第二反馈信息确定的传输格式赋形后的下行数据。 And a fifth receiving module, configured to receive downlink data that is shaped according to the second feedback information or the transmission format determined according to the first feedback information and the second feedback information.
根据权利要求30所述的终端设备，其中，所述传输格式包括：预编码矩阵、时频资源分配和调制编码方式中的一个或多个。The terminal device according to claim 30, wherein the transmission format comprises one or more of a precoding matrix, a time-frequency resource allocation, and a modulation and coding mode.
根据权利要求28所述的终端设备，其中，所述第一导频信号具有N1个端口，所述第二导频信号具有N2个端口，N1，N2为大于等于1的正整数，N1和N2的数值相同或不同。The terminal device according to claim 28, wherein said first pilot signal has N1 ports, said second pilot signal has N2 ports, and N1, N2 are positive integers greater than or equal to 1, N1 and N2 The values are the same or different.
根据权利要求32所述的终端设备，其中，所述第一反馈信息包括如下一项或者多项：第一预编码矩阵指示PMI1、第一信道质量信息符CQI1和第一轶指示RI1中，第二导频信号的指示信息，其中，所述第一预编码矩阵指示PMI1指向N1个端口码本中的一个N1个端口预编码矩阵，所述第一信道质量信息符CQI1与所述第一预编码矩阵指示PMI1对应，所述第一轶指示RI1反映所述第一预编码矩阵指示PMI1的轶；The terminal device according to claim 32, wherein the first feedback information comprises one or more of: a first precoding matrix indicating PMI1, a first channel quality information symbol CQI1, and a first 轶 indicating RI1, The indication information of the two pilot signals, wherein the first precoding matrix indicates that PMI1 points to one N1 port precoding matrix in the N1 port codebook, the first channel quality information symbol CQI1 and the first pre The coding matrix indicates PMI1, and the first indication RI1 reflects that the first precoding matrix indicates P轶 of PMI1;

所述第二反馈信息包括如下一项或者多项：第二预编码矩阵指示PMI2、第二信道质量信息符CQI2和第二轶指示RI2，其中，所述第二预编码矩阵指示PMI2指向N2个端口码本中的一个N2个端口预编码矩阵，所述第二信道质量信息符CQI2与所述第二预编码矩阵指示PMI2对应，所述第二轶指示RI2反映所述第二预编码矩阵指示PMI2的轶。The second feedback information includes one or more of the following: a second precoding matrix indication PMI2, a second channel quality information symbol CQI2, and a second UI indication RI2, wherein the second precoding matrix indicates that PMI2 points to N2 An N2 port precoding matrix in the port codebook, the second channel quality information symbol CQI2 corresponding to the second precoding matrix indication PMI2, the second UI indication RI2 reflecting the second precoding matrix indication The flaw of PMI2.
根据权利要求32所述的终端设备，其中，The terminal device according to claim 32, wherein

所述第一导频信号使用第一导频资源，所述第二导频信号使用第二导频资源，或者The first pilot signal uses a first pilot resource, the second pilot signal uses a second pilot resource, or

所述第一导频信号和第二导频信号对应第三导频资源中的N1个端口和N2个端口；或者The first pilot signal and the second pilot signal correspond to N1 ports and N2 ports in the third pilot resource; or

所述第一导频信号和第二导频信号都能使用第四导频资源，所述第四导频资源的天线端口数在子帧间动态或半静态变化。Both the first pilot signal and the second pilot signal can use a fourth pilot resource, and the number of antenna ports of the fourth pilot resource changes dynamically or semi-statically between subframes.
根据权利要求28所述的终端设备，其中，所述终端设备还包括：The terminal device according to claim 28, wherein the terminal device further comprises:

第六接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈方式，其中，a sixth receiving module, configured to receive a feedback manner of the first feedback information and the second feedback information, where

所述第一反馈信息和第二反馈信息为周期反馈，所述第一反馈信息和第二反馈信息的上报周期和上报偏移联合或者独立配置；或者The first feedback information and the second feedback information are periodic feedback, and the reporting period and the reporting offset of the first feedback information and the second feedback information are jointly or independently configured; or

所述第一反馈信息和第二反馈信息为非周期反馈，由接入设备触发所述第一反馈信息和/或第二反馈信息上报；或者The first feedback information and the second feedback information are aperiodic feedback, and the access device triggers the Reporting the first feedback information and/or the second feedback information; or

所述第一反馈信息为周期反馈，所述第二反馈信息为非周期反馈，非周期反馈由接入设备触发；或者The first feedback information is periodic feedback, the second feedback information is aperiodic feedback, and the aperiodic feedback is triggered by the access device; or

所述第一反馈信息为非周期反馈，所述第二反馈信息为周期反馈，非周期反馈由所述接入设备触发。The first feedback information is aperiodic feedback, the second feedback information is periodic feedback, and the aperiodic feedback is triggered by the access device.
根据权利要求28所述的终端设备，其中，所述终端设备还包括：The terminal device according to claim 28, wherein the terminal device further comprises:

第七接收模块，用于接收所述第一反馈信息和第二反馈信息的反馈参数，包括码本参数、信道和/或干扰测量配置参数、使能/失效PMI反馈参数、使能/失效RI反馈参数和使能/失效CQI反馈参数中的全部或部分参数。a seventh receiving module, configured to receive feedback parameters of the first feedback information and the second feedback information, including a codebook parameter, a channel and/or an interference measurement configuration parameter, an enable/fail PMI feedback parameter, and an enable/disable RI Feedback parameters and all or part of the parameters of the enable/disable CQI feedback parameters.
一种信道状态信息反馈的获取***，包括：An acquisition system for channel state information feedback includes:

接入设备，用于发送第一导频信号；An access device, configured to send a first pilot signal;

所述接入设备，还用于接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；The access device is further configured to receive first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

所述接入设备，还用于发送第二导频信号；The access device is further configured to send a second pilot signal;

所述接入设备，还用于接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态；The access device is further configured to receive second feedback information, where the second feedback information reflects a channel state of the second pilot signal;

终端设备，用于接收第一导频信号；a terminal device, configured to receive a first pilot signal;

所述终端设备，还用于发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；The terminal device is further configured to send first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal;

所述终端设备，还用于接收第二导频信号；The terminal device is further configured to receive a second pilot signal;

所述终端设备，还用于发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。The terminal device is further configured to send second feedback information, where the second feedback information reflects a channel state of the second pilot signal.
一种接入设备，包括：An access device comprising:

第一处理器，用于读取第一存储器中的程序，执行下列过程：The first processor is configured to read the program in the first memory and perform the following process:

通过第一收发机发送第一导频信号；接收第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；发送第二导频信号；接收第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。Transmitting, by the first transceiver, a first pilot signal; receiving first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal; transmitting a second pilot signal; and receiving second feedback information The second feedback information reflects a channel state of the second pilot signal.
一种终端设备，包括：A terminal device comprising:

第二处理器，用于读取第二存储器中的程序，执行下列过程： The second processor is configured to read the program in the second memory and perform the following process:

通过第二收发机接收第一导频信号；发送第一反馈信息，所述第一反馈信息反映所述第一导频信号上测量的信道状态；接收第二导频信号；发送第二反馈信息，所述第二反馈信息反映所述第二导频信号的信道状态。 Receiving, by the second transceiver, the first pilot signal; transmitting first feedback information, where the first feedback information reflects a channel state measured on the first pilot signal; receiving a second pilot signal; and transmitting second feedback information The second feedback information reflects a channel state of the second pilot signal.