WO2016066036A1

WO2016066036A1 - Channel state information feedback and acquisition method and device

Info

Publication number: WO2016066036A1
Application number: PCT/CN2015/092465
Authority: WO
Inventors: 陈润华; 高秋彬; 拉盖施; 李辉
Original assignee: 电信科学技术研究院
Priority date: 2014-10-31
Filing date: 2015-10-21
Publication date: 2016-05-06
Also published as: CN105634680B; CN105634680A

Abstract

Disclosed are a channel state information (CSI) feedback and acquisition method and device for reducing feedback overhead of a user equipment (UE) and reducing CSI feedback processing difficulty of a UE side, thus enabling the feedback and acquisition of the CSI to be more convenient and fast, and saving resources; in addition, the obtained CSI can reflect the overall CSI after 3D-MIMO shaping. The CSI acquisition method comprises: transmitting a first pilot signal to the UE via a first pilot resource pre-allocated for the UE; and receiving the CSI fed back by the UE via a first process pre-allocated for the UE and the CSI fed back by the UE via a second process pre-allocated for the UE, the CSI fed back via the first process and the CSI fed back via the second process being measured and calculated by the UE based on at least the first pilot signal.

Description

一种信道状态信息的反馈、获取方法及装置Feedback, acquisition method and device for channel state information

本申请要求在2014年10月31日提交中国专利局、申请号为201410602804.9、申请名称为“一种信道状态信息的反馈、获取方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201410602804.9, filed on Jan. 31, 2014, entitled "A Feedback, Acquisition Method and Apparatus for Channel Status Information", the entire contents of which are incorporated by reference. Combined in this application.

技术领域Technical field

本申请涉及通信技术领域，尤其涉及一种信道状态信息的反馈、获取方法及装置。The present application relates to the field of communications technologies, and in particular, to a method and device for feeding back and obtaining channel state information.

背景技术Background technique

在现有蜂窝***中，基站天线阵列一般呈水平排列。基站发射端波束仅能在水平方向进行调整，而垂直方向是固定的下倾角，因此各种波束赋形和预编码技术等均是基于水平方向信道信息进行的。事实上，由于无线信号在空间中是三维传播的，固定下倾角的方法不能使***的性能达到最优。In existing cellular systems, the base station antenna arrays are generally horizontally aligned. The base station transmitter beam can only be adjusted in the horizontal direction, while the vertical direction is a fixed downtilt angle. Therefore, various beamforming and precoding techniques are performed based on the horizontal channel information. In fact, since the wireless signal is three-dimensionally propagated in space, the method of fixing the downtilt angle does not optimize the performance of the system.

3D(Three-dimensional，3维)MIMO(Multiple Input Multiple Output，多入多出)的一个重要特性是基站侧天线数目非常多，而且是二维的天线结构，例如：8、16、32、64天线等。An important feature of 3D (Three-dimensional) MIMO (Multiple Input Multiple Output) is that the number of antennas on the base station side is very large, and it is a two-dimensional antenna structure, for example, 8, 16, 32, 64. Antennas, etc.

随着天线技术的发展，业界已出现能够对每个阵子独立控制的有源天线。采用这种设计，天线阵列会由现在的两维的水平排列增强到三维的水平排列和垂直排列，这种天线阵列的方式，使得波束在垂直方向的动态调整成为可能。With the development of antenna technology, the industry has emerged an active antenna that can independently control each array. With this design, the antenna array is enhanced from the current two-dimensional horizontal arrangement to the three-dimensional horizontal arrangement and vertical alignment. This antenna array makes the dynamic adjustment of the beam in the vertical direction possible.

FDD(Frequency Division Duplex，频分双工)和TDD(Time Division Duplex，时分双工)***中要实现三维的波束赋形和预编码需要依靠终端上报的CSI(Channel State Information，信道状态信息)，目前，有以下两种方式实现。To achieve three-dimensional beamforming and precoding in FDD (Frequency Division Duplex) and TDD (Time Division Duplex) systems, it is necessary to rely on CSI (Channel State Information) reported by the terminal. Currently, there are two ways to achieve this.

方式一、沿用基于码本的上报方式，例如：LTE(Long Term Evolution，长期演进)版本8(Rel-8)***采用的方式。The first method is to use a codebook-based reporting method, for example, the LTE (Long Term Evolution) version 8 (Rel-8) system.

例如：有一个4x4大小的3D-MIMO天线阵列，现有的方案是eNB(evolved Node B，演进基站)配置一个CSI-RS(Channel State Information Reference Signal，信道状态信息参考信号(也可称为探测参考信号))资源，天线阵列有16个天线端口，对应于总共的天线数量，UE反馈一个CSI进程。但是，反馈码本必须对应总共的天线数量，也即对应于16天线，这样码本必须包括很多码字，才能够满足足够的精确度，对应于新的天线数目(16天线)设计新的码本也是很复杂的标准化工作，同时这种方式UE需要在很多码字中选择可以反映信道的最佳的码字，反馈的计算和反馈的开销也很大。另外，该方式中还存在以下问题：For example, there is a 4x4 sized 3D-MIMO antenna array. The existing scheme is an eNB (evolved Node B) to configure a CSI-RS (Channel State Information Reference Signal). The reference signal)) resource, the antenna array has 16 antenna ports, corresponding to the total number of antennas, the UE feeds back a CSI process. However, the feedback codebook must correspond to the total number of antennas, that is, corresponding to 16 antennas, so that the codebook must include many codewords to satisfy sufficient accuracy, and a new code is designed corresponding to the new number of antennas (16 antennas). This is also a very complicated standardization work, and at this time, the UE needs to choose among many codewords. The best codeword for the channel can be reflected, and the computational and feedback overhead of the feedback is also large. In addition, the following problems exist in this mode:

一、三维波束赋形的天线单元采用的是每个阵子独立控制的有源天线，天线功放与天线单元集成在一起，在天线单元数目很大的情况下，每个天线单元的发射功率很低。如果采用传统的方法，每个天线的单元发送一个CSI-RS，其发射功率将会很低，终端可能无法实现正确的信道估计以及数据传输，鉴于此种情况，现有技术中提出可以采用天线虚拟化或者扇区化的方式解决该问题，但是天线虚拟化之后终端将无法区分多个天线单元，也就无法利用多个天线单元实现有效的多天线传输。1. The three-dimensional beamforming antenna unit adopts an active antenna independently controlled by each array. The antenna power amplifier is integrated with the antenna unit. When the number of antenna units is large, the transmission power of each antenna unit is very low. . If the traditional method is used, each antenna unit sends a CSI-RS, its transmission power will be very low, and the terminal may not be able to achieve correct channel estimation and data transmission. In view of this situation, it is proposed in the prior art to adopt an antenna. The virtualization or sectorization approach solves this problem, but after the antenna is virtualized, the terminal cannot distinguish between multiple antenna units, and thus multiple antenna units cannot be used to achieve efficient multi-antenna transmission.

二、天线端口数目过多，每个天线单元发送一个CSI-RS会导致终端对每个天线端口都需要进行信道估计，并基于信道估计值进行CSI计算，天线单元数目较大时终端的复杂度很高，难于实现。2. The number of antenna ports is too large. Each CSI-RS sent by each antenna unit will cause the terminal to perform channel estimation for each antenna port, and perform CSI calculation based on the channel estimation value. The complexity of the terminal when the number of antenna units is large Very high, difficult to achieve.

方式二、eNB配置两个CSI-RS资源，每个资源的端口数对应于垂直维度和水平维度的天线数目。Manner 2: The eNB configures two CSI-RS resources, and the number of ports of each resource corresponds to the number of antennas in the vertical dimension and the horizontal dimension.

例如：有一个4x4大小的3D-MIMO天线阵列，eNB配置两个CSI-RS资源，每个资源有4个端口，对应于两个CSI-RS资源，每一个CSI-RS资源可以用来反馈一个不同维度的信道状态，比如水平维度和垂直维度，这样UE反馈两个CSI进程，各对应一个资源。其中，每个CSI-RS资源从一组天线上发出，UE测量每一个CSI-RS资源，反馈其对应的CSI，叫做一个CSI进程，现有的标准中每个CSI进程定义为关联到一个CSI-RS资源，每一个CSI进程中的CSI反馈内容由其对应的CSI-RS资源上独立测量得到，包括RI(Rank Indication，秩指示)，PMI(Precoding Matrix Indicator，预编码矩阵指示)和CQI(Channel Quality Indicator，信道质量指示)，RI反映UE在下行中可以支持的码流数，PMI反映UE反馈的一个码本中的编码矩阵，CQI反映RI/PMI被应用于MIMO编码后UE可以接收到的信号强度。CQI的计算必须基于反馈的RI/PMI，可以是某种信号强弱的表示，例如：SINR(Signal to Interference plus Noise Ratio，信号与干扰加噪声比)，或MCS(modulation and coding scheme，调制与编码等级)，或其它特性。CQI反馈的数量根据RI来调整，例如：RI＝1，代表UE可以接受一个码流，则有一个CQI反馈；RI>1，代表UE可以接受多个码流，则有多个CQI反馈，在现有LTE标准中，当RI>1的时候，有两个CQI反馈。eNB根据UE反馈的垂直维度和水平维度的CSI，得到下行3D-MIMO赋形的信息，并得到一个CQI值用来做下行链路调整。但是该方式中存在以下问题：For example, there is a 4×4 size 3D-MIMO antenna array, and the eNB configures two CSI-RS resources, each resource has 4 ports, corresponding to two CSI-RS resources, and each CSI-RS resource can be used to feed back one. Channel states of different dimensions, such as horizontal and vertical dimensions, such that the UE feeds back two CSI processes, one for each resource. Each CSI-RS resource is sent from a group of antennas, and the UE measures each CSI-RS resource and feeds back its corresponding CSI, which is called a CSI process. Each CSI process in the existing standard is defined as being associated with one CSI. -RS resources, the CSI feedback content in each CSI process is independently measured by its corresponding CSI-RS resource, including RI (Rank Indication), PMI (Precoding Matrix Indicator) and CQI ( Channel Quality Indicator, RI reflects the number of code streams that the UE can support in the downlink. The PMI reflects the coding matrix in a codebook fed back by the UE. The CQI reflects that the RI/PMI is applied to the MIMO encoding and the UE can receive the code. Signal strength. The calculation of CQI must be based on the feedback RI/PMI, which can be a representation of the strength of a signal, such as: SINR (Signal to Interference plus Noise Ratio), or MCS (modulation and coding scheme) Encoding level), or other characteristics. The number of CQI feedbacks is adjusted according to RI. For example, RI=1 means that the UE can accept one code stream, then there is one CQI feedback; RI>1, which means that the UE can accept multiple code streams, then there are multiple CQI feedbacks. In the existing LTE standard, when RI>1, there are two CQI feedbacks. The eNB obtains downlink 3D-MIMO shaped information according to the CSI of the vertical dimension and the horizontal dimension fed back by the UE, and obtains a CQI value for downlink adjustment. However, the following problems exist in this mode:

每个CSI进程是单独独立计算得到，不能反映3D-MIMO赋形后的整体信道状态信息，例如：垂直维度的CSI进程由垂直维度的CSI-RS资源测量得到，水平维度的CSI进程由水平维度的CSI-RS资源测量得到，两个CSI进程之间没有任何关联关系，eNB在接受到垂直维度和水平维度的CSI进程之后无法直接应用于3D-MIMO的赋形，而必须对两个CSI进程进一步处理以得到3D-MIMO两维矩阵上的赋形信息和CQI信息，不仅增大eNB的复杂度，也降低了3D-MIMO赋形的精确度。Each CSI process is independently calculated and cannot reflect the overall channel state information after 3D-MIMO shaping. For example, the vertical dimension CSI process is measured by the vertical dimension CSI-RS resource, and the horizontal dimension CSI process is determined by The CSI-RS resource measurement in the horizontal dimension is obtained. There is no relationship between the two CSI processes. After receiving the CSI process in the vertical and horizontal dimensions, the eNB cannot directly apply to the 3D-MIMO shape, but must The CSI process is further processed to obtain the shaping information and CQI information on the 3D-MIMO two-dimensional matrix, which not only increases the complexity of the eNB, but also reduces the accuracy of the 3D-MIMO shaping.

综上所述，现有3D-MIMO技术中获取CSI的技术方案，基于传统反馈方案，测量一个CSI-RS资源，通过一个码本上报一个CSI进程的方式，UE的计算难度和反馈开销大，不利于实现。In summary, the existing CSI technology solution in the 3D-MIMO technology, based on the traditional feedback scheme, measures a CSI-RS resource, and reports a CSI process through a codebook, and the calculation difficulty and feedback overhead of the UE are large. Not conducive to implementation.

发明内容Summary of the invention

本申请实施例提供了一种信道状态信息的反馈、获取方法及装置，用以减少UE的反馈开销，降低UE侧的CSI反馈处理难度，使得信道状态信息的反馈、获取更加便捷，节省资源，同时，获取到的信道状态信息能够反映3D-MIMO赋形后的整体信道状态信息。The embodiment of the present application provides a feedback and acquisition method and a device for channel state information, which are used to reduce the feedback overhead of the UE, reduce the difficulty of CSI feedback processing on the UE side, and make the feedback and acquisition of the channel state information more convenient and save resources. At the same time, the acquired channel state information can reflect the overall channel state information after 3D-MIMO shaping.

本申请实施例提供的一种信道状态信息CSI的获取方法，包括：通过预先为用户设备UE配置的第一导频资源发送第一导频信号至所述UE；接收所述UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的。A method for obtaining channel state information (CSI) provided by the embodiment of the present application includes: transmitting, by using a first pilot resource configured for a user equipment UE, a first pilot signal to the UE; The CSI fed back by the first process configured by the UE, and the CSI fed back by the second process configured in advance for the UE, where the CSI fed back by the first process and the CSI fed back by the second process are The UE calculates the calculation based on at least the first pilot signal measurement.

本申请实施例提供的上述方法中，网络侧(例如：基站)接收到UE通过第一进程和第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，该通过第一进程反馈的CSI和通过第二进程反馈的CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the above method provided by the embodiment of the present application, the network side (for example, the base station) receives the CSI that is fed back by the UE through the first process and the second process, and is calculated by the UE based on at least the first pilot signal measurement, and the first pass is performed. The CSI fed back by the process and the CSI fed back through the second process are calculated based on at least the first pilot signal measurement, and the channel state information of the first pilot signal is reflected from two dimensions, for example, a horizontal dimension and a vertical dimension, reflecting the 3D. MIMO-shaped overall channel state information, so that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE. Compared with the manner in which the UE reports based on the codebook in the prior art, the UE passes The first process and the second process feedback CSI are calculated for the pilot signal measurement, which reduces the processing difficulty of the UE.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过所述第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation, in the foregoing method, the number of the antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1. The number of antenna ports corresponding to the CSI fed back by the second process is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一进程反馈的CSI，包括：预编码矩阵指示PMI信息；所述第二进程反馈的CSI，包括：PMI信息和信道质量指示CQI信息，其中，所述CQI信息是所述UE基于所述第一进程反馈的PMI信息和所述第二进程反馈的PMI信息得到的。 In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the CSI that is sent by the first process includes: a precoding matrix indicating PMI information; and a CSI fed back by the second process, including: PMI information. And the channel quality indicator CQI information, wherein the CQI information is obtained by the UE based on the PMI information fed back by the first process and the PMI information fed back by the second process.

在本申请实施例提供的上述方法中，第一进程反馈的CSI中只包含PMI信息，而不进行CQI反馈，降低了UE的反馈开销。In the foregoing method provided by the embodiment of the present application, the CSI fed back by the first process only includes PMI information, and does not perform CQI feedback, which reduces the feedback overhead of the UE.

在一种可能的实施方式中，本申请实施例提供的上述方法中，还包括：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the method further includes: sending, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the UE; The CSI fed back by the process and the CSI fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: the CSI fed back by the first process is The CSI calculated by the UE based on the first pilot signal measurement; the CSI fed back by the second process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal.

本申请实施例提供的上述方法中，通过第一进程反馈的CSI是UE基于第一导频信号测量计算得到的，通过第二进程反馈的CSI是UE基于第一导频信号和第二导频信号共同测量计算得到，因此，该通过第一进程反馈的CSI和通过第二进程反馈的CSI具有一定关联性，能够从两个维度反映了天线阵列的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE对单个资源单独测量计算CSI相比，通过第一进程反馈的CSI和通过第二进程反馈的CSI共同反映了3D-MIMO赋形后的整体信道状态信息，无需基站对接收到的CSI进一步处理，降低了基站的处理难度。In the foregoing method provided by the embodiment of the present application, the CSI fed back by the first process is calculated by the UE based on the measurement of the first pilot signal, and the CSI fed back by the second process is that the UE is based on the first pilot signal and the second pilot. The signal is jointly measured and calculated. Therefore, the CSI fed back through the first process has a certain correlation with the CSI fed back through the second process, and the channel state information of the antenna array can be reflected from two dimensions, for example, a horizontal dimension and a vertical dimension. The overall channel state information after the 3D-MIMO shaping is reflected, so that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE, and the UE separately measures and calculates the CSI for a single resource in the prior art. In contrast, the CSI fed back through the first process and the CSI fed back through the second process jointly reflect the overall channel state information after 3D-MIMO shaping, and the base station does not need to further process the received CSI, which reduces the processing difficulty of the base station.

在一种可能的实施方式中，本申请实施例提供的上述方法中，还包括：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the method further includes: sending, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the UE; The CSI fed back by the process and the CSI fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: the CSI fed back by the first process is The UE calculates the calculated based on the first pilot signal and the second pilot signal; the CSI fed back by the second process is that the UE is based on the first pilot signal and the second The pilot signals are jointly measured and calculated.

本申请实施例提供的上述方法中，通过第一进程反馈的CSI是UE基于第一导频信号和第二导频信号共同测量计算得到的，通过第二进程反馈的CSI也是UE基于第一导频信号和第二导频信号共同测量计算得到，因此，该通过第一进程反馈的CSI和通过第二进程反馈的CSI具有一定关联性，能够从两个维度反映了天线阵列的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE对单个资源单独测量计算CSI相比，通过第一进程反馈的CSI和通过第二进程反馈的CSI共同反映了3D-MIMO赋形后的整体信道状态信息，无需基站对接收到的CSI进一步处理，降低了基站的处理难度。 In the above method provided by the embodiment of the present application, the CSI fed back by the first process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal, and the CSI fed back through the second process is also the UE based on the first guide. The frequency signal and the second pilot signal are jointly measured and calculated. Therefore, the CSI fed back through the first process and the CSI fed back through the second process have a certain correlation, and the channel state information of the antenna array can be reflected from two dimensions. For example, the horizontal and vertical dimensions reflect the overall channel state information after 3D-MIMO shaping, so that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE, and the UE in the prior art. Compared with calculating CSI for a single resource, the CSI fed back through the first process and the CSI fed back through the second process jointly reflect the overall channel state information after 3D-MIMO shaping, and the base station does not need to further process the received CSI. The processing difficulty of the base station is reduced.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一进程反馈的CSI，包括：PMI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the CSI fed back by the first process includes: PMI information.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一进程反馈的CSI，还包括：所述PMI信息对应的秩指示RI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the CSI that is sent by the first process further includes: the rank indication RI information corresponding to the PMI information.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第二进程反馈的CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二进程反馈的PMI信息和所述第一进程反馈的PMI信息得到的CQI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the CSI that is sent by the second process includes: PMI information, RI information corresponding to the PMI information, and PMI based on the second process feedback. The information and the CQI information obtained by the PMI information fed back by the first process.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源的天线端口数量等于通过所述第一进程反馈的CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于通过所述第二进程反馈的CSI对应的天线端口数量。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the second The number of antenna ports of the pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the second process.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源的配置周期为所述第二导频资源的配置周期的L倍，其中，L为大于或等于1的正整数。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, a configuration period of the first pilot resource is L times of a configuration period of the second pilot resource, where L is greater than or A positive integer equal to 1.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一进程反馈的CSI的反馈周期为所述第二进程反馈的CSI的反馈周期的L倍，其中，L为大于或等于1的正整数。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the feedback period of the CSI fed back by the first process is L times of the feedback period of the CSI fed back by the second process, where L is A positive integer greater than or equal to 1.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源和所述第二导频资源，为信道状态信息参考信号CSI-RS资源或公共参考信号CRS资源。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the first pilot resource and the second pilot resource are a channel state information reference signal CSI-RS resource or a common reference signal CRS. Resources.

本申请实施例提供的一种信道状态信息CSI的反馈方法，包括：用户设备UE确定网络侧预先为该UE配置的第一导频资源、第一进程和第二进程；所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；所述UE通过所述第一进程将所述第一CSI反馈至网络侧，并通过所述第二进程将所述第二CSI反馈至网络侧。The method for feeding back channel state information CSI provided by the embodiment of the present application includes: determining, by the user equipment, the first pilot resource, the first process, and the second process that are configured by the network side in advance for the UE; the UE is at least based on the network. The first CSI and the second CSI are calculated by the first pilot signal sent by the first pilot resource, and the UE feeds back the first CSI to the network side by using the first process, and passes the The second process feeds back the second CSI to the network side.

本申请实施例提供的上述方法中，UE至少基于第一导频信号测量计算得到第CSI和第二CSI，该第一CSI和第二CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the above method provided by the embodiment of the present application, the UE calculates the CSI and the second CSI based on at least the first pilot signal measurement, where the first CSI and the second CSI are calculated based on at least the first pilot signal measurement, from two The dimension reflects the channel state information of the first pilot signal, for example, the horizontal dimension and the vertical dimension, and reflects the overall channel state information after 3D-MIMO shaping, so that the base station can directly apply after receiving the CSI fed back by the UE. The shaping of the 3D-MIMO is compared with the manner in which the UE reports based on the codebook in the prior art, and the UE obtains the CSI of the first process and the second process by calculating the pilot signal, thereby reducing the processing difficulty of the UE.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。 In a possible implementation manner, in the foregoing method, the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the first CSI is N1, and the second The number of antenna ports corresponding to the CSI is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一CSI，包括：预编码矩阵指示PMI信息；所述第二CSI，包括：PMI信息和信道质量指示CQI信息，其中，所述CQI信息是所述UE基于所述第一CSI中的PMI信息和所述第二CSI中的PMI信息得到的。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the first CSI includes: a precoding matrix indicating PMI information; and the second CSI includes: PMI information and channel quality indication CQI information. The CQI information is obtained by the UE based on PMI information in the first CSI and PMI information in the second CSI.

在一种可能的实施方式中，本申请实施例提供的上述方法中，还包括：所述UE确定网络侧预先为该UE配置的第二导频资源；所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：所述UE基于所述第一导频信号测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the method further includes: determining, by the UE, a second pilot resource that is configured by the network side in advance for the UE; The first pilot signal sent by the first pilot resource is calculated to obtain the first CSI and the second CSI, where the UE calculates the first CSI based on the first pilot signal measurement; the UE is based on the The first pilot signal and the second pilot signal sent by the network side through the second pilot resource are jointly measured and calculated to obtain a second CSI.

在一种可能的实施方式中，本申请实施例提供的上述方法中，还包括：所述UE确定网络侧预先为该UE配置的第二导频资源；所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the method further includes: determining, by the UE, a second pilot resource that is configured by the network side in advance for the UE; The first pilot signal sent by the first pilot resource is calculated to obtain the first CSI and the second CSI, where the UE is sent by using the second pilot resource based on the first pilot signal and the network side. The second pilot signal is jointly measured and calculated to obtain a first CSI; the UE calculates and calculates a second CSI based on the first pilot signal and the second pilot signal sent by the network side by using the second pilot resource.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一CSI，包括：PMI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the first CSI includes: PMI information.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一CSI，还包括：所述PMI信息对应的秩指示RI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the first CSI further includes: a rank indication RI information corresponding to the PMI information.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第二CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二CSI中的PMI信息和所述第一CSI中的PMI信息得到的CQI信息。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the second CSI includes: PMI information, RI information corresponding to the PMI information, and PMI information and a location based on the second CSI. The CQI information obtained by the PMI information in the first CSI.

在一种可能的实施方式中，本申请实施例提供的上述方法中，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量。In a possible implementation manner, in the foregoing method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the second pilot resource is The number of antenna ports is equal to the number of antenna ports corresponding to the second CSI.

本申请实施例提供的一种信道状态信息CSI的获取装置，包括：第一单元，用于通过预先为用户设备UE配置的第一导频资源发送第一导频信号至所述UE；第二单元，连接至所述第一单元，用于接收所述UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的。An apparatus for acquiring channel state information CSI provided by the embodiment of the present application includes: a first unit, configured to send a first pilot signal to the UE by using a first pilot resource configured in advance for a user equipment UE; a unit, connected to the first unit, configured to receive CSI fed back by the UE by using a first process configured in advance for the UE, and CSI fed back by a second process configured in advance for the UE, where The CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement.

本申请实施例提供的上述装置中，该装置(例如：基站)接收到UE通过第一进程和第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，该通过第一进程反馈的CSI和通过第二进程反馈的CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the above apparatus provided by the embodiment of the present application, the apparatus (for example, a base station) receives the UE through the first process and The CSI fed back by the second process is calculated by the UE based on at least the first pilot signal measurement, and the CSI fed back through the first process and the CSI fed back through the second process are calculated based on at least the first pilot signal measurement, The dimensions reflect the channel state information of the first pilot signal, for example, the horizontal dimension and the vertical dimension, and reflect the overall channel state information after 3D-MIMO shaping, so that the base station can directly apply after receiving the CSI fed back by the UE. In the shaping of the 3D-MIMO, compared with the manner in which the UE reports based on the codebook in the prior art, the UE obtains the first process and the second process feedback CSI by calculating the pilot signal, thereby reducing the processing difficulty of the UE.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过所述第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1, The number of antenna ports corresponding to the CSI fed back by the second process is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一单元还用于：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the first unit is further configured to: send, by using, a second pilot signal that is configured in advance for the user equipment UE to the The CSI that is fed back by the first process and the CSI that is fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: feedback by using the first process. The CSI is calculated by the UE based on the first pilot signal measurement; the CSI fed back by the second process is that the UE is based on the first pilot signal and the second pilot signal Calculated by common measurements.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一单元还用于：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the first unit is further configured to: send, by using, a second pilot signal that is configured in advance for the user equipment UE to the The CSI that is fed back by the first process and the CSI that is fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: feedback by using the first process. The CSI is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal; and the CSI fed back by the second process is that the UE is based on the first pilot The signal and the second pilot signal are jointly measured and calculated.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一导频资源的天线端口数量等于通过所述第一进程反馈的CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于通过所述第二进程反馈的CSI对应的天线端口数量。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the second The number of antenna ports of the pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the second process.

本申请实施例提供的一种信道状态信息CSI的反馈装置，包括：资源确定单元，用于确定网络侧预先为该装置所在的用户设备UE配置的第一导频资源、第一进程和第二进程；测量单元，连接至所述资源确定单元，用于至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；反馈单元，连接至所述资源确定单元和所述测量单元，用于通过所述第一进程将所述第一CSI反馈至网络侧，并通过所述第二进程将所述第二CSI反馈至网络侧。The feedback device of the channel state information CSI provided by the embodiment of the present application includes: a resource determining unit, configured to determine a first pilot resource, a first process, and a second configured by the network side in advance for the user equipment UE where the device is located. a measuring unit, connected to the resource determining unit, configured to calculate a first CSI and a second CSI based on at least a first pilot signal measurement sent by the network side by using the first pilot resource; and a feedback unit connected to The resource determining unit and the measuring unit are configured to feed back the first CSI to the network side by using the first process, and feed back the second CSI to the network side by using the second process.

本申请实施例提供的上述装置中，该装置所在的UE至少基于第一导频信号测量计算得到第CSI和第二CSI，该第一CSI和第二CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the above apparatus provided by the embodiment of the present application, the UE where the device is located is measured and calculated based on at least the first pilot signal. Obtaining a CSI and a second CSI, where the first CSI and the second CSI are calculated based on at least the first pilot signal measurement, and the channel state information of the first pilot signal is reflected from two dimensions, for example, a horizontal dimension and a vertical dimension. The overall channel state information after the 3D-MIMO shaping is reflected, so that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE, which is compared with the manner in which the UE reports based on the codebook in the prior art. The UE reduces the processing difficulty of the UE by calculating the CSI of the first process and the second process by calculating the pilot signal.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation, in the foregoing apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the first CSI is N1, the second The number of antenna ports corresponding to the CSI is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述资源确定单元还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源；所述测量单元，具体用于：基于所述第一导频信号测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the resource determining unit is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located; Specifically, the method is: calculating, according to the first pilot signal, a first CSI, and calculating, according to the first pilot signal, a second pilot signal sent by the network side by using the second pilot resource, Second CSI.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述资源确定单元还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源；所述测量单元，具体用于：基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the resource determining unit is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located; Specifically, the first CSI is calculated and calculated based on the first pilot signal and the second pilot signal sent by the network side by using the second pilot resource; based on the first pilot signal and the network side. And calculating, by using the second pilot signal sent by the second pilot resource, the second CSI.

在一种可能的实施方式中，本申请实施例提供的上述装置中，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量。In a possible implementation manner, in the foregoing apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the second pilot resource is The number of antenna ports is equal to the number of antenna ports corresponding to the second CSI.

附图说明DRAWINGS

图1为本申请实施例提供的网络侧的一种CSI的获取方法的流程示意图；FIG. 1 is a schematic flowchart of a method for acquiring a CSI on a network side according to an embodiment of the present disclosure;

图2为本申请实施例提供的UE侧的一种CSI的计算方法的示意图；2 is a schematic diagram of a method for calculating a CSI on a UE side according to an embodiment of the present disclosure;

图3为本申请实施例提供的UE侧的另一种CSI的计算方法的示意图；FIG. 3 is a schematic diagram of another CSI calculation method on the UE side according to an embodiment of the present disclosure;

图4为本申请实施例提供的UE侧的又一种CSI的计算方法的示意图；FIG. 4 is a schematic diagram of another method for calculating CSI on the UE side according to an embodiment of the present disclosure;

图5A-5C为本申请实施例提供的第一进程反馈CSI的反馈方式的示意图；5A-5C are schematic diagrams of a feedback manner of a first process feedback CSI according to an embodiment of the present application;

图6为本申请实施例提供的UE侧的一种CSI的反馈方法的流程示意图；FIG. 6 is a schematic flowchart of a CSI feedback method on a UE side according to an embodiment of the present disclosure;

图7为本申请实施例提供的网络侧的一种CSI的获取装置的结构示意图；FIG. 7 is a schematic structural diagram of a CSI acquiring apparatus on a network side according to an embodiment of the present disclosure;

图8为本申请实施例提供的网络侧的另一种CSI的获取装置的结构示意图；FIG. 8 is a schematic structural diagram of another CSI acquiring apparatus on the network side according to an embodiment of the present disclosure;

图9为本申请实施例提供的UE侧的一种CSI的反馈装置的结构示意图； FIG. 9 is a schematic structural diagram of a CSI feedback apparatus on a UE side according to an embodiment of the present disclosure;

图10为本申请实施例提供的UE侧的另一种CSI的反馈装置的结构示意图。FIG. 10 is a schematic structural diagram of another CSI feedback apparatus on the UE side according to an embodiment of the present disclosure.

具体实施方式detailed description

本申请实施例提供了一种信道状态信息的反馈、获取方法及装置，用以减少UE的反馈开销，降低UE侧的CSI反馈处理难度，使得信道状态信息的反馈、获取更加便捷，节省资源，同时，获取到的信道状态信息能够反映3D-MIMO赋形后的整体信道状态信息，降低基站的处理难度。The embodiment of the present application provides a feedback and acquisition method and a device for channel state information, which are used to reduce the feedback overhead of the UE, reduce the difficulty of CSI feedback processing on the UE side, and make the feedback and acquisition of the channel state information more convenient and save resources. At the same time, the acquired channel state information can reflect the overall channel state information after 3D-MIMO shaping, and reduce the processing difficulty of the base station.

由于无线信号在空间中是三维传播的，固定下倾角的方法不能使***的性能达到最优。垂直方向的波束调整对于降低小区间干扰，提高***性能有着很重要的意义。Since the wireless signal is three-dimensionally propagated in space, the method of fixing the downtilt angle does not optimize the performance of the system. Vertical beam adjustment is very important for reducing inter-cell interference and improving system performance.

本申请实施例中所述的第一进程和第二进程可以是两个进程，也可以是同一个进程的两个子进程，本申请实施例中以两个进程进行说明，且第一进程和第二进程仅仅是为了区分两个进程而定义的名称；本申请实施例中所述的第一导频资源和第二导频资源可以是两个独立配置的资源，也可以是同一资源的两个子资源，本申请实施例中以两个独立配置的资源进行说明，第一导频资源和第二导频资源仅仅是为了区分两个资源而定义的名称；所述第一导频资源和所述第二导频资源，可以为CSI-RS资源或CRS资源等。The first process and the second process described in the embodiment of the present application may be two processes, or may be two sub-processes of the same process, which are described by two processes in the embodiment of the present application, and the first process and the first process The second process is only a name defined to distinguish the two processes; the first pilot resource and the second pilot resource described in this embodiment may be two independently configured resources, or may be two children of the same resource. a resource, which is described in the embodiment of the present application by two independently configured resources, where the first pilot resource and the second pilot resource are only names defined to distinguish two resources; the first pilot resource and the first pilot resource The second pilot resource may be a CSI-RS resource or a CRS resource.

本申请实施例提出eNB可以给UE配备CSI-RS资源用来做测量。在传统无线***比如LTE中，导频信号可以用来做信道信息测量或者是RRM(Radio Resource Management，无线资源管理)测量，包括RSRP(Reference Signal Receiving Power，参考信号接收功率)和RSRQ(Reference Signal Receiving Quality，参考信号接收质量)等。该类测量可以对CRS或者是CSI-RS进行测量实现，但是基于其他导频信号上的测量也可同样实现，在此不赘述。The embodiment of the present application proposes that the eNB may allocate the CSI-RS resource to the UE for measurement. In traditional wireless systems such as LTE, pilot signals can be used for channel information measurement or RRM (Radio Resource Management) measurement, including RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal). Receiving Quality, reference signal reception quality, etc. This type of measurement can be implemented by measuring CRS or CSI-RS, but the measurement based on other pilot signals can also be implemented, and will not be described here.

在网络侧，以基站为例，本申请实施例提供的一种信道状态信息CSI的获取方法，如图1所示，包括：On the network side, taking the base station as an example, a method for acquiring channel state information CSI provided by the embodiment of the present application, as shown in FIG. 1 , includes:

步骤102，通过预先为用户设备UE配置的第一导频资源发送第一导频信号至UE；Step 102: Send a first pilot signal to the UE by using a first pilot resource configured in advance for the user equipment UE.

所述第一导频资源具体是指用于发送第一导频信号的时域和频域资源，可以通过高层信息将第一导频资源的资源配置信息通知给UE，该高层信息包括第一导频信号的发送周期、位移(offset)、功率和第一导频信号的索引(index)等。LTE里面一个子帧可以有多个可供选择的CSI-RS资源，比如2天线***一个子帧里面有20个CSI-RS资源可选，CSI-RS的索引用于通知UE配置给它的是哪一个索引对应的CSI-RS资源。The first pilot resource specifically refers to a time domain and a frequency domain resource used for transmitting the first pilot signal, and may notify the UE of the resource configuration information of the first pilot resource by using the high layer information, where the high layer information includes the first The transmission period of the pilot signal, the offset, the power, and the index of the first pilot signal. A sub-frame in LTE may have multiple CSI-RS resources to be selected. For example, two antenna systems have 20 CSI-RS resources in one subframe, and an index of the CSI-RS is used to notify the UE that the configuration is Which index corresponds to the CSI-RS resource.

每一个CSI-RS资源有各自独立的子帧(subframe)周期和位移。假如CSI-RS的发送周期是5个子帧，那么offset表示CSI-RS从每一帧中的哪个子帧开始发送，可以取值0， 1，2，3或4，例如当取值0时，CSI-RS从每一帧中的子帧0开始发送，当取值1时，CSI-RS从每一帧中的子帧1开始发送。Each CSI-RS resource has its own independent subframe period and displacement. If the transmission period of the CSI-RS is 5 subframes, then offset indicates which subframe in each frame the CSI-RS starts to transmit, and may take a value of 0. 1, 2, 3 or 4, for example, when the value is 0, the CSI-RS is transmitted from the subframe 0 in each frame, and when the value is 1, the CSI-RS is transmitted from the subframe 1 in each frame. .

步骤104，接收UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过第一进程反馈的CSI和通过第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的。Step 104: Receive CSI fed back by the UE by using the first process configured for the UE in advance, and CSI fed back by the second process configured in advance for the UE, where the CSI fed back through the first process and the feedback through the second process are received. The CSI is calculated by the UE based on at least the first pilot signal measurement.

本申请实施例提供的方法中，基站接收到UE通过第一进程和第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，该通过第一进程反馈的CSI和通过第二进程反馈的CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the method provided by the embodiment of the present application, the base station receives the CSI that is fed back by the UE through the first process and the second process, and is calculated by the UE based on at least the first pilot signal measurement, and the CSI and the pass through the first process feedback. The CSI fed back by the two processes is calculated based on at least the first pilot signal measurement, and the channel state information of the first pilot signal is reflected from two dimensions, for example, a horizontal dimension and a vertical dimension, reflecting the overall 3D-MIMO shaping. The channel state information is such that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE. Compared with the manner in which the UE reports based on the codebook in the prior art, the UE calculates and calculates the pilot signal. The first process and the second process feed back CSI, which reduces the processing difficulty of the UE.

当然，需要说明的是，基站通过预先为UE配置用于反馈CSI的第一进程和第二进程，例如：配置CSI的反馈周期、位移以及精确度，可以便于基站对UE反馈CSI的控制，便于基站更好的调整天线的参数，提高性能。Of course, it is necessary for the base station to configure the first process and the second process for feeding back CSI for the UE, for example, configuring the feedback period, the displacement, and the accuracy of the CSI, so that the base station can facilitate the feedback of the CSI to the UE, which is convenient. The base station better adjusts the parameters of the antenna to improve performance.

在一种可能的实施方式中，本申请实施例提供的方法中，第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation manner, in the method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1, and the second The number of antenna ports corresponding to the CSI fed back by the process is N2, and the product of N1 and N2 is equal to N.

作为一个较为具体的实施例，如图2所示，例如：一个4×4的天线阵列，基站为UE配置一个16端口的第一导频资源202，并通过该第一导频资源202发送第一导频信号至UE，当然，第一导频资源中包括第一导频信号的发送周期、位移、功率和第一导频信号的索引等；UE基于第一导频信号进行测量计算得到第一维度(例如：水平维度)的CSI和第二维度(例如：垂直维度)的CSI，并通过第一进程204将该第一维度的CSI反馈至基站，通过第二进程206将该第二维度的CSI反馈至基站，由于第一维度的CSI和第二维度的CSI是UE对第一导频信号的两个维度进行测量得到的，因此，第一维度的CSI和第二维度的CSI对应的天线端口数不是天线阵列总的天线端口数，而只是一个维度的天线端口数，也即第一维度的CSI(通过第一进程反馈的CSI)对应的天线端口数量为4，第二维度的CSI(通过第二进程反馈的CSI)对应的天线端口数量也是4。As a more specific embodiment, as shown in FIG. 2, for example, a 4×4 antenna array, the base station configures a 16-port first pilot resource 202 for the UE, and sends the first pilot resource 202 through the first pilot resource 202. a pilot signal to the UE, of course, the first pilot resource includes a transmission period, a displacement, a power, and an index of the first pilot signal of the first pilot signal; and the UE performs measurement calculation based on the first pilot signal. a CSI of a dimension (eg, a horizontal dimension) and a CSI of a second dimension (eg, a vertical dimension), and feed back the CSI of the first dimension to the base station by the first process 204, and the second dimension by the second process 206 The CSI is fed back to the base station, and the CSI of the first dimension and the CSI of the second dimension are obtained by the UE measuring the two dimensions of the first pilot signal, so the CSI of the first dimension and the CSI of the second dimension correspond to The number of antenna ports is not the total number of antenna ports of the antenna array, but only the number of antenna ports in one dimension, that is, the CSI of the first dimension (CSI fed back by the first process) corresponds to the number of antenna ports of 4, and the CSI of the second dimension (through the second process Feedforward CSI) corresponding to the number of antenna ports is 4.

具体来说，假设第一进程204反馈的CSI中的PMI信息记为PMI1，第二进程206反馈的CSI中的PMI信息记为PMI2，则可以通过以下公式计算PMI1和PMI2：Specifically, it is assumed that the PMI information in the CSI fed back by the first process 204 is recorded as PMI1, and the PMI information in the CSI fed back by the second process 206 is recorded as PMI2, and PMI1 and PMI2 can be calculated by the following formula:

其中，arg函数为使得PMI1和PMI2最佳的取值集合；opt函数表示优化计算，用于在所有可选的优化空间内选在最佳的优化；H是UE对第一导频资源测量得到的总的信道估计值，反映三维天线阵列到UE的信道，是一个Nr x K矩阵，Nr是UE接收天线数量，K是总的天线数量(例如：16)；V1在第一维度预编码赋形矩阵码本1(即codebook1)中遍历取值，V2在第二维度预编码赋形矩阵码本2(即codebook2)中遍历取值，V1和V2各自对应一个4天线的码本，以找到使得PMI1和PMI2最优的取值集合，PMI1、PMI2是UE反馈的天线阵列的预编码矩阵指示信息。

代表Kronecker积，值得注意的是，以上公式中

代表通过两个维度的4天线的赋形矩阵产生一个3D-MIMO的总体的16天线的赋形矩阵。这里的Kronecker积只是一种可能的方案，在另一实施例中，也可以使用其他的方案通过垂直维度赋形矩阵和水平维度赋形矩阵产生总体赋形矩阵，此处并不用于具体限定。Wherein, the arg function is the set of values that makes PMI1 and PMI2 optimal; the opt function represents the optimization calculation for selecting the best optimization in all optional optimization spaces; H is the measurement of the first pilot resource by the UE. The total channel estimation value, reflecting the channel of the three-dimensional antenna array to the UE, is an Nr x K matrix, Nr is the number of UE receiving antennas, K is the total number of antennas (for example: 16); V1 is precoding in the first dimension The shape matrix codebook 1 (ie, codebook1) traverses the value, V2 traverses the value in the second dimension precoding matrix codebook 2 (ie, codebook2), and V1 and V2 respectively correspond to a 4-antenna codebook to find The optimal set of values for PMI1 and PMI2, PMI1 and PMI2 are precoding matrix indication information of the antenna array fed back by the UE.

On behalf of Kronecker product, it is worth noting that in the above formula

A representative 16-antenna matrix of 3D-MIMO is generated by representing a four-dimensional shaped matrix of two dimensions. The Kronecker product here is only one possible solution. In another embodiment, other schemes may also be used to generate an overall shape matrix by a vertical dimension forming matrix and a horizontal dimension shaping matrix, which are not specifically limited herein.

在一种可能的实施方式中，本申请实施例提供的方法中，第一进程反馈的CSI，包括：预编码矩阵指示PMI信息；第二进程反馈的CSI，包括：PMI信息和信道质量指示CQI信息，其中，CQI信息是UE基于第一进程反馈的PMI信息和第二进程反馈的PMI信息得到的。In a possible implementation manner, in the method provided by the embodiment of the present application, the CSI fed back by the first process includes: a precoding matrix indicating PMI information; and a CSI fed back by the second process, including: PMI information and channel quality indicator CQI The information, wherein the CQI information is obtained by the UE based on the PMI information fed back by the first process and the PMI information fed back by the second process.

作为较为具体的实施例，假设一个使用MMSE(Minimum Mean Square Error，最小均方误差)接收机的UE，在UE测量计算得到最佳的PMI1(对应于赋形矩阵V1)和PMI2(对应于赋形矩阵V2)后，第r个码流CQI的计算如下：As a more specific embodiment, suppose a UE using an MMSE (Minimum Mean Square Error) receiver calculates the best PMI1 (corresponding to the shaping matrix V1) and PMI2 (corresponding to the assignment). After the shape matrix V2), the calculation of the rth code stream CQI is as follows:

其中，

是UE观测到的3D-MIMO使用V1和V2矩阵赋形之后的实际信道，()_r,r是一个矩阵的第r的对角线的变量的值，I是一个对角阵(identify matrix)，对角线上的每个变量都是1，其他非对角线上的变量为0，R是UE测量到的噪声/干扰的斜方差矩阵(covariance matrix)，是一个Nr x Nr的矩阵，Nr是UE接收天线的数量。among them,

Is the actual channel after the 3D-MIMO observed by the UE is shaped using the V1 and V2 matrices, () _{r, r} is the value of the variable of the diagonal of the _rth of a matrix, and I is an identity matrix. Each variable on the diagonal is 1 and the other non-diagonal variables are 0. R is the covariance matrix of the noise/interference measured by the UE. It is a matrix of Nr x Nr. Nr is the number of UE receiving antennas.

在本申请实施例提供的方法中，第一进程反馈的CSI中只包含PMI信息，而不进行CQI反馈，降低了UE的反馈开销。In the method provided by the embodiment of the present application, the CSI fed back by the first process only includes the PMI information, and does not perform the CQI feedback, which reduces the feedback overhead of the UE.

具体来说，UE通过对第一导频信号进行测量计算得到的第一维度的CSI中，包括：PMI1，第二维度的CSI中包括：PMI2，进一步地，UE可以计算假设使用PMI1和PMI2对3D-MIMO进行波束赋形后的CQI值，并通过第一进程或第二进程反馈该CQI值，作为较为优选的实施例，通过第二进程反馈的CSI反馈该CQI的值。Specifically, the CSI of the first dimension obtained by the UE by performing measurement on the first pilot signal includes: PMI1, and the CSI of the second dimension includes: PMI2. Further, the UE may calculate assuming that the PMI1 and the PMI2 pair are used. The CQI value after the beamforming is performed by the 3D-MIMO, and the CQI value is fed back through the first process or the second process. As a preferred embodiment, the value of the CQI is fed back by the CSI fed back by the second process.

以上是基站为UE配置一个导频资源，基站基于该导频资源进行反馈两个维度的CSI 的情况，在具体实施时，基站也可以为UE配置两个导频资源，下面结合具体的实施例介绍基站为UE配置两个导频资源的情况。The above is that the base station configures a pilot resource for the UE, and the base station feeds back two dimensions of CSI based on the pilot resource. In the case of the specific implementation, the base station may also configure two pilot resources for the UE. The following describes the case where the base station configures two pilot resources for the UE in combination with specific embodiments.

实施例一Embodiment 1

在一种可能的实施方式中，本申请实施例提供的方法中，还包括：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至UE；通过第一进程反馈的CSI和通过第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，具体为：通过第一进程反馈的CSI，是UE基于第一导频信号测量计算得到的；通过第二进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的。In a possible implementation manner, in the method provided by the embodiment of the present application, the method further includes: sending, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the UE; And the CSI that is fed back through the second process, where the UE is calculated based on at least the first pilot signal measurement, specifically: the CSI fed back by the first process is calculated by the UE based on the first pilot signal measurement; The CSI of the process feedback is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal.

在该实施例中，通过第一进程反馈的CSI是UE基于第一导频信号测量计算得到的，通过第二进程反馈的CSI是UE基于第一导频信号和第二导频信号共同测量计算得到，因此，该通过第一进程反馈的CSI和通过第二进程反馈的CSI具有一定关联性，能够从两个维度反映了天线阵列的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE对单个资源单独测量计算CSI相比，通过第一进程反馈的CSI和通过第二进程反馈的CSI共同反映了3D-MIMO赋形后的整体信道状态信息，无需基站对接收到的CSI进一步处理，降低了基站的处理难度。In this embodiment, the CSI fed back by the first process is calculated by the UE based on the first pilot signal measurement, and the CSI fed back by the second process is that the UE performs the common measurement calculation based on the first pilot signal and the second pilot signal. Obtaining, therefore, the CSI fed back through the first process and the CSI fed back through the second process have a certain correlation, and can reflect channel state information of the antenna array from two dimensions, for example: horizontal dimension and vertical dimension, reflecting 3D MIMO-shaped overall channel state information, so that after receiving the CSI fed back by the UE, the base station can be directly applied to the 3D-MIMO shaping, compared with the prior art in which the UE separately measures and calculates the CSI for a single resource. The CSI fed back by the first process and the CSI fed back by the second process jointly reflect the overall channel state information after 3D-MIMO shaping, and the base station does not need to further process the received CSI, which reduces the processing difficulty of the base station.

作为较为具体的实施例，如图3所示，基站为UE配置第一导频资源302和第二导频资源304、第一进程306以及第二进程308，通过第一进程306反馈的CSI是基于第一导频资源302中的第一导频信号测量计算得到，假设通过第一进程306反馈的CSI中的PMI信息记为PMI1，则PMI1可以通过以下公式计算：As a more specific embodiment, as shown in FIG. 3, the base station configures the first pilot resource 302 and the second pilot resource 304, the first process 306, and the second process 308 for the UE, and the CSI fed back through the first process 306 is Based on the first pilot signal measurement calculation in the first pilot resource 302, it is assumed that the PMI information in the CSI fed back through the first process 306 is recorded as PMI1, and the PMI1 can be calculated by the following formula:

PMI1＝arg opt_{V1∈codebook1}f(H1×V1)PMI1=arg opt _{V1∈codebook1} f(H1×V1)

其中，H1是UE对第一导频资源进行测量得到的信道估计值，V1在第一维度预编码赋形矩阵码本1(即codebook1)中遍历取值，以找到使得PMI1最优的取值，V1对应一个4天线的码本。Wherein, H1 is a channel estimation value obtained by the UE measuring the first pilot resource, and V1 traverses the value in the first dimension precoding shaping matrix codebook 1 (ie, codebook1) to find the value that makes PMI1 optimal. V1 corresponds to a 4-antenna codebook.

而通过第二进程308反馈的CSI是基于第一导频资源302中的第一导频信号和第二导频资源304中的第二导频信号共同测量计算得到的，假设通过第二进程308反馈的CSI中的PMI信息记为PMI2，则PMI2的计算基于PMI1，以最优化3D-MIMO的性能，具体可以通过以下公式计算：The CSI fed back through the second process 308 is calculated based on the common measurement of the first pilot signal in the first pilot resource 302 and the second pilot signal in the second pilot resource 304, assuming that the second process 308 is passed. The PMI information in the feedback CSI is recorded as PMI2, and the calculation of PMI2 is based on PMI1 to optimize the performance of 3D-MIMO, which can be calculated by the following formula:

其中，H1和H2是UE分别对第一导频资源302和第二导频资源304进行测量得到的信道估计值，V1在第一维度预编码赋形矩阵码本1(即codebook1)中遍历取值，V2在第二维度预编码赋形矩阵码本2(即codebook2)中遍历取值，以找到使得PMI2最优的取值，V1和V2各自对应一个4天线的码本，也即PMI2的计算是基于第一导频信号和第二导频信号测量计算得到的，且PMI2的计算依赖于PMI1的计算结果，PMI1和PMI2具有一定的关联性。Wherein, H1 and H2 are channel estimation values obtained by the UE respectively measuring the first pilot resource 302 and the second pilot resource 304, and V1 is traversed in the first dimension precoding matrix codebook 1 (ie, codebook1). Value, V2 in the first The two-dimensional precoding shaping matrix codebook 2 (ie, codebook2) traverses the value to find the value that makes PMI2 optimal, and V1 and V2 each correspond to a 4-antenna codebook, that is, the calculation of PMI2 is based on the first The pilot signal and the second pilot signal are measured and calculated, and the calculation of PMI2 depends on the calculation result of PMI1, and PMI1 and PMI2 have certain correlation.

进一步地，可以计算假设PMI1和PMI2对3D-MIMO进行波束赋形后的CQI值，并通过第一进程或第二进程反馈该CQI值，作为较为优选的实施例，通过第二进程反馈的CSI反馈该CQI的值。Further, the CQI value after the beamforming of the 3D-MIMO by the PMI1 and the PMI2 can be calculated, and the CQI value is fed back through the first process or the second process. As a preferred embodiment, the CSI fed back through the second process Feedback the value of this CQI.

实施例二Embodiment 2

在一种可能的实施方式中，本申请实施例提供的方法中，还包括：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至UE；通过第一进程反馈的CSI和通过第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，具体为：通过第一进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的；通过第二进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的。In a possible implementation manner, in the method provided by the embodiment of the present application, the method further includes: sending, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the UE; The CSI that is fed back through the second process is calculated by the UE based on at least the first pilot signal measurement, and specifically, the CSI fed back by the first process is that the UE performs the common measurement based on the first pilot signal and the second pilot signal. Calculated; the CSI fed back through the second process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal.

本该实施例中，通过第一进程反馈的CSI是UE基于第一导频信号和第二导频信号共同测量计算得到的，通过第二进程反馈的CSI也是UE基于第一导频信号和第二导频信号共同测量计算得到，因此，该通过第一进程反馈的CSI和通过第二进程反馈的CSI具有一定关联性，能够从两个维度反映了天线阵列的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE对单个资源单独测量计算CSI相比，通过第一进程反馈的CSI和通过第二进程反馈的CSI共同反映了3D-MIMO赋形后的整体信道状态信息，无需基站对接收到的CSI进一步处理，降低了基站的处理难度。In this embodiment, the CSI fed back by the first process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal, and the CSI fed back through the second process is also the UE based on the first pilot signal and the first The two pilot signals are jointly measured and calculated. Therefore, the CSI fed back through the first process has a certain correlation with the CSI fed back through the second process, and the channel state information of the antenna array can be reflected from two dimensions, for example, the horizontal dimension. And the vertical dimension reflects the overall channel state information after the 3D-MIMO shaping, so that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE, and the UE separates the single resource from the prior art. Compared with the CSI calculated by the first process, the CSI fed back through the first process and the CSI fed back through the second process jointly reflect the overall channel state information after the 3D-MIMO shaping, and the base station does not need to further process the received CSI, thereby reducing the base station. Handling difficulty.

作为较为具体的实施例，如图4所示，基站为UE配置第一导频资源402和第二导频资源404、第一进程406以及第二进程408，通过第一进程406反馈的CSI是基于第一导频资源402中的第一导频信号和第二导频资源404中的第二导频信号共同测量计算得到，通过第二进程408反馈的CSI也是基于第一导频资源402中的第一导频信号和第二导频资源404中的第二导频信号共同测量计算得到的，假设通过第一进程406反馈的CSI中的PMI信息记为PMI1，通过第二进程408反馈的CSI中的PMI信息记为PMI2，则PMI1、PMI2可以通过以下公式计算：As a more specific embodiment, as shown in FIG. 4, the base station configures the first pilot resource 402 and the second pilot resource 404, the first process 406, and the second process 408 for the UE, and the CSI fed back through the first process 406 is Based on the common measurement of the first pilot signal in the first pilot resource 402 and the second pilot signal in the second pilot resource 404, the CSI fed back through the second process 408 is also based on the first pilot resource 402. The first pilot signal and the second pilot signal in the second pilot resource 404 are jointly measured and calculated, and it is assumed that the PMI information in the CSI fed back through the first process 406 is recorded as PMI1, and is fed back through the second process 408. The PMI information in the CSI is recorded as PMI2, and PMI1 and PMI2 can be calculated by the following formula:

其中，H1和H2是UE分别对第一导频资源402和第二导频资源404进行测量得到的信道估计值，V1在第一维度预编码赋形矩阵码本1(即codebook1)中遍历取值，V2在第二维度预编码赋形矩阵码本2(即codebook2)中遍历取值，以找到使得PMI1和PMI2最优的取值，V1和V2各自对应一个4天线的码本，也即PMI1和PMI2的计算是均是基于第一导频信号和第二导频信号测量计算得到的，与现有技术中PMI1基于第一导频资源独立计算，PMI2基于第二导频资源独立计算的相比，本申请实施例计算得到的PMI1和PMI2具有一定的关联性，更好的反映了3D-MIMO赋形后的整体信道状态信息。Wherein, H1 and H2 are channel estimation values obtained by the UE respectively measuring the first pilot resource 402 and the second pilot resource 404, and V1 is traversed in the first dimension precoding matrix codebook 1 (ie, codebook1). Value, V2 in the first The two-dimensional precoding shaping matrix codebook 2 (ie, codebook2) traverses the value to find the optimal value of PMI1 and PMI2, and V1 and V2 respectively correspond to a 4-antenna codebook, that is, the calculation of PMI1 and PMI2. The calculation is calculated based on the first pilot signal and the second pilot signal. Compared with the prior art, the PMI1 is independently calculated based on the first pilot resource, and the PMI2 is independently calculated based on the second pilot resource. The PMI1 and PMI2 calculated by the embodiment have certain correlation, which better reflects the overall channel state information after 3D-MIMO shaping.

进一步地，可以计算在假设PMI1和PMI2对3D-MIMO进行波束赋形后的CQI值，并通过第一进程或第二进程反馈该CQI值，作为较为优选的实施例，通过第二进程反馈的CSI反馈该CQI的值。Further, the CQI value after the beamforming of the 3D-MIMO by the PMI1 and the PMI2 is calculated, and the CQI value is fed back through the first process or the second process, as a more preferred embodiment, the feedback is performed by the second process. The CSI feeds back the value of the CQI.

在一种可能的实施方式中，本申请实施例提供的方法中，第一进程反馈的CSI，包括：PMI信息。In a possible implementation manner, in the method provided by the embodiment of the present application, the CSI fed back by the first process includes: PMI information.

在具体实施时，当第一进程反馈的CSI中仅包含PMI信息时，UE选择的PMI应在一个固定的RI的码本中选择，这里RI的值可以固定，也可以是基站通过高层信息配置一个RI值。例如：RI＝1，这时UE反馈的PMI是一个向量，反映UE推荐的一个赋形向量，因为RI＝1，所以UE只在一个秩(rank)中计算PMI，不需要在所有的rank中寻找最优PMI，PMI计算的复杂度会相应降低，同时由于不反馈RI和CQI，反馈的开销也相应降低。In a specific implementation, when the CSI fed back by the first process only includes the PMI information, the PMI selected by the UE should be selected in a fixed RI codebook, where the value of the RI may be fixed, or the base station may be configured by using high-level information. An RI value. For example: RI=1, at this time, the PMI fed back by the UE is a vector, reflecting a shape vector recommended by the UE. Because RI=1, the UE only calculates the PMI in one rank, and does not need to be in all ranks. Looking for the optimal PMI, the complexity of the PMI calculation will be reduced accordingly, and the feedback overhead will be reduced accordingly due to the non-feedback of RI and CQI.

作为较为具体的实施例，在3D-MIMO的应用中，基站配置两个导频资源，第一导频资源对应水平维度的测量，第二导频资源对应垂直维度的测量。以水平维度为例，垂直维度的应用可以等同使用，这里不赘述。基站配置UE在垂直维度反馈PMI，在水平方向反馈RI、PMI和CQI，垂直维度的PMI反映UE反馈的垂直维度赋形向量的信息。As a more specific embodiment, in the application of 3D-MIMO, the base station configures two pilot resources, the first pilot resource corresponds to the measurement of the horizontal dimension, and the second pilot resource corresponds to the measurement of the vertical dimension. Taking the horizontal dimension as an example, the application of the vertical dimension can be used equally, and will not be described here. The base station configures the UE to feed back the PMI in the vertical dimension, and feeds back the RI, PMI, and CQI in the horizontal direction, and the vertical dimension PMI reflects the information of the vertical dimension shaping vector fed back by the UE.

水平维度的RI、PMI和CQ的测量，由垂直维度的第二导频资源和水平维度的第一导频资源共同测量得到，也即UE在测量水平维度的RI、CQI和PMI时，其计算也使用到垂直维度的PMI。The measurement of the RI, PMI, and CQ of the horizontal dimension is jointly measured by the second pilot resource of the vertical dimension and the first pilot resource of the horizontal dimension, that is, when the UE measures the RI, CQI, and PMI of the horizontal dimension, the calculation thereof A PMI to the vertical dimension is also used.

垂直维度的PMI反馈可以是周期性或者是非周期性。The PMI feedback of the vertical dimension can be periodic or aperiodic.

在一种可能的实施方式中，本申请实施例提供的方法中，第一进程反馈的CSI，还包括：PMI信息对应的秩指示RI信息。In a possible implementation manner, in the method provided by the embodiment of the present application, the CSI fed back by the first process further includes: the rank indication RI information corresponding to the PMI information.

具体实施时，通过第一进程反馈的CSI中还包括，PMI信息对应的RI信息，则反馈的PMI信息要对应反馈的RI，例如：RI＝1，则PMI信息只在一个固定的rank中计算，不需要在所有的rank中寻找最优的PMI。同时，通过第一进程反馈的CSI中不包含CQI信息，降低UE的计算难度和反馈开销。In the specific implementation, the CSI that is fed back by the first process further includes the RI information corresponding to the PMI information, and the fed back PMI information is corresponding to the fed back RI. For example, RI=1, the PMI information is only calculated in a fixed rank. There is no need to find the optimal PMI in all ranks. At the same time, the CSI information fed back by the first process does not include CQI information, which reduces the computational difficulty and feedback overhead of the UE.

在具体通过第一进程进行反馈时，PMI和RI的反馈可以采用如图5A所示的方式在同一子帧中反馈，反馈周期相同；也可以采用如图5B所示的方式反馈，但PMI和RI的反馈周期不同，PMI的反馈周期小于RI的反馈周期，当然，也可以采用如图5C所示的方式，PMI和RI在不同的子帧中进行反馈，且反馈周期独立配置。When the feedback is specifically performed through the first process, the feedback of the PMI and the RI may be fed back in the same subframe as shown in FIG. 5A, and the feedback period is the same; the feedback may be performed in the manner shown in FIG. 5B, but the PMI and RI feedback The feedback period of the PMI is smaller than the feedback period of the RI. Of course, the method shown in FIG. 5C can also be adopted. The PMI and the RI perform feedback in different subframes, and the feedback periods are independently configured.

在一种可能的实施方式中，本申请实施例提供的方法中，第二进程反馈的CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二进程反馈的PMI信息和第一进程反馈的PMI信息得到的CQI信息。In a possible implementation manner, in the method provided by the embodiment of the present application, the CSI fed back by the second process includes: PMI information, RI information corresponding to the PMI information, and PMI information and a message based on the second process feedback. The CQI information obtained by the PMI information fed back by a process.

值得说明的是，当通过第一进程反馈的CSI中包含PMI信息，或者PMI信息和RI信息的组合时，通过第二进程反馈的CSI信息应包括PMI信息、该PMI信息对应的RI信息，以及基于该第二进程反馈的PMI信息和第一进程反馈的PMI信息得到的CQI信息，也即CQI信息是基于假设第一进程反馈的PMI信息和第二进程反馈的PMI信息对天线阵列进行波束赋形后得到的CQI值，以反映3D-MIMO赋形后的整体信道状态信息。It is to be noted that, when the CSI fed back through the first process includes the PMI information, or the combination of the PMI information and the RI information, the CSI information fed back by the second process should include the PMI information, the RI information corresponding to the PMI information, and The CQI information obtained based on the PMI information fed back by the second process and the PMI information fed back by the first process, that is, the CQI information is based on the PMI information fed back by the first process and the PMI information fed back by the second process. The CQI value obtained after the shape is reflected to reflect the overall channel state information after 3D-MIMO shaping.

当然，本领域技术人员应当理解的是，在另一种实施方式中，可能通过第二进程反馈的CSI中包含PMI信息，或者PMI信息和RI信息的组合时，而通过第一进程反馈的CSI信息应包括PMI信息、该PMI信息对应的RI信息，以及基于该第一进程反馈的PMI信息和第二进程反馈的PMI信息得到的CQI信息。Certainly, those skilled in the art should understand that, in another implementation manner, the CSI that is fed back through the second process may include PMI information, or a combination of PMI information and RI information, and the CSI fed back through the first process. The information should include PMI information, RI information corresponding to the PMI information, and CQI information obtained based on the PMI information fed back by the first process and the PMI information fed back by the second process.

在一种可能的实施方式中，本申请实施例提供的方法中，第一导频资源的天线端口数量等于通过第一进程反馈的CSI对应的天线端口数量，第二导频资源的天线端口数量等于通过第二进程反馈的CSI对应的天线端口数量。In a possible implementation manner, in the method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the number of antenna ports of the second pilot resource. It is equal to the number of antenna ports corresponding to the CSI fed back through the second process.

在具体实施时，当基站为UE配置两个导频资源时，则每个导频资源的天线端口数量与通过第一进程和第二进程反馈的CSI对应的天线端口数量相等。例如：对于4×4的天线阵列，第一导频资源对应水平维度，维度为4天线，则通过第一进程反馈的CSI对应的天线端口数也为4；第二导频资源对应垂直维度，维度为4天线，则通过第二进程反馈的CSI对应的天线端口数也为4。In a specific implementation, when the base station configures two pilot resources for the UE, the number of antenna ports of each pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process and the second process. For example, for a 4×4 antenna array, the first pilot resource corresponds to a horizontal dimension, and the dimension is 4 antennas, and the number of antenna ports corresponding to the CSI fed back through the first process is also 4; the second pilot resource corresponds to the vertical dimension. If the dimension is 4 antennas, the number of antenna ports corresponding to the CSI fed back through the second process is also 4.

在具体实施时，第一导频资源的配置周期和第二导频资源的配置周期可以不同，较佳地，第一导频资源的配置周期为第二导频资源的配置周期的L倍，其中，L为大于或等于1的正整数，例如：第一导频资源对应于垂直维度，第二导频资源对应于水平维度，当UE相对于基站移动时，相对于基站，UE在水平维度的移动速度远大于UE在垂直维度移动的速度。In a specific implementation, the configuration period of the first pilot resource and the configuration period of the second pilot resource may be different. Preferably, the configuration period of the first pilot resource is L times of the configuration period of the second pilot resource. Wherein, L is a positive integer greater than or equal to 1, for example, the first pilot resource corresponds to a vertical dimension, and the second pilot resource corresponds to a horizontal dimension. When the UE moves relative to the base station, the UE is in a horizontal dimension with respect to the base station. The speed of movement is much greater than the speed at which the UE moves in the vertical dimension.

较佳地，第一进程反馈的CSI的反馈周期和第二进程反馈的CSI的反馈周期可以不同，第一进程反馈的CSI的反馈周期为第二进程反馈的CSI的反馈周期的L倍，其中，L为大于或等于1的正整数。例如，第一CSI进程用来反馈垂直维度的信道信息，第二CSI进程用来反馈水平维度的信道信息，当UE相对于基站移动时，相对于基站，UE在水平维度的移动速度远大于UE在垂直维度移动的速度，所以水平维度反馈的速率可以比垂直维度反馈的速率较快。Preferably, the feedback period of the CSI and the feedback period of the CSI fed back by the second process may be different, and the feedback period of the CSI fed back by the first process is L times of the feedback period of the CSI fed back by the second process, where , L is a positive integer greater than or equal to 1. For example, the first CSI process is used to feed back channel information of a vertical dimension, and the second CSI process is used to feed back channel information of a horizontal dimension. When the UE moves relative to the base station, the UE is in a horizontal dimension with respect to the base station. The speed of movement is much greater than the speed at which the UE moves in the vertical dimension, so the rate of horizontal dimension feedback can be faster than the rate of vertical dimension feedback.

在一种可能的实施方式中，本申请实施例提供的方法中，第一导频资源和第二导频资源，为信道状态信息参考信号CSI-RS资源或公共参考信号CRS资源。In a possible implementation manner, in the method provided by the embodiment of the present application, the first pilot resource and the second pilot resource are a channel state information reference signal CSI-RS resource or a common reference signal CRS resource.

相应地，在用户设备侧，本申请实施例提供的一种信道状态信息CSI的反馈方法，如图6所示，包括：Correspondingly, on the user equipment side, a method for feeding back channel state information CSI provided by the embodiment of the present application, as shown in FIG. 6, includes:

步骤602，用户设备UE确定网络侧预先为该UE配置的第一导频资源、第一进程和第二进程；Step 602: The user equipment UE determines a first pilot resource, a first process, and a second process that are configured by the network side in advance for the UE.

步骤604，UE至少基于网络侧通过第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；Step 604: The UE calculates the first CSI and the second CSI based on the first pilot signal measurement sent by the network side by using the first pilot resource.

步骤606，UE通过第一进程将第一CSI反馈至网络侧，并通过第二进程将第二CSI反馈至网络侧。Step 606: The UE feeds back the first CSI to the network side by using the first process, and feeds the second CSI to the network side by using the second process.

本申请实施例提供的方法中，UE至少基于第一导频信号测量计算得到第CSI和第二CSI，该第一CSI和第二CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the method provided by the embodiment of the present application, the UE calculates the CSI and the second CSI based on at least the first pilot signal measurement, where the first CSI and the second CSI are calculated based on at least the first pilot signal measurement, from two dimensions. Reflecting the channel state information of the first pilot signal, for example, the horizontal dimension and the vertical dimension, reflecting the overall channel state information after 3D-MIMO shaping, so that the base station can directly apply to the 3D after receiving the CSI fed back by the UE. The MIMO is shaped. Compared with the manner in which the UE reports based on the codebook in the prior art, the UE calculates the CSI of the first process and the second process by calculating the pilot signal, which reduces the processing difficulty of the UE.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation manner, in the method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, the number of antenna ports corresponding to the first CSI is N1, and the second CSI The number of corresponding antenna ports is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第一CSI，包括：预编码矩阵指示PMI信息；所述第二CSI，包括：PMI信息和信道质量指示CQI信息，其中，所述CQI信息是所述UE基于所述第一CSI中的PMI信息和所述第二CSI中的PMI信息得到的。In a possible implementation manner, in the method provided by the embodiment of the present application, the first CSI includes: a precoding matrix indicating PMI information; and the second CSI includes: PMI information and channel quality indication CQI information, where The CQI information is obtained by the UE based on PMI information in the first CSI and PMI information in the second CSI.

在一种可能的实施方式中，本申请实施例提供的方法中，还包括：所述UE确定网络侧预先为该UE配置的第二导频资源；所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：所述UE基于所述第一导频信号测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation manner, in the method provided by the embodiment of the present application, the method further includes: determining, by the UE, a second pilot resource configured by the network side in advance for the UE; The first pilot signal sent by the pilot resource is calculated to obtain the first CSI and the second CSI, where the UE calculates the first CSI based on the first pilot signal measurement; the UE is based on the A pilot signal and a second pilot signal transmitted by the network side through the second pilot resource are jointly measured and calculated to obtain a second CSI.

在一种可能的实施方式中，本申请实施例提供的方法中，还包括：所述UE确定网络侧预先为该UE配置的第二导频资源；所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation, the method provided by the embodiment of the present application further includes: determining, by the UE, a network The second pilot resource configured in advance for the UE; the UE calculates the first CSI and the second CSI based on the first pilot signal measurement sent by the network side by using the first pilot resource, specifically: Determining, by the UE, the first CSI based on the first pilot signal and the second pilot signal sent by the network side by using the second pilot resource; the UE is based on the first pilot signal and the network side And calculating, by using the second pilot signal sent by the second pilot resource, the second CSI.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第一CSI，包括：PMI信息。In a possible implementation manner, in the method provided by the embodiment of the present application, the first CSI includes: PMI information.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第一CSI，还包括：所述PMI信息对应的秩指示RI信息。In a possible implementation manner, in the method provided by the embodiment of the present application, the first CSI further includes: a rank indication RI information corresponding to the PMI information.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第二CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二CSI中的PMI信息和所述第一CSI中的PMI信息得到的CQI信息。In a possible implementation, in the method provided by the embodiment of the present application, the second CSI includes: PMI information, RI information corresponding to the PMI information, and PMI information in the second CSI and the CQI information obtained from PMI information in the first CSI.

在一种可能的实施方式中，本申请实施例提供的方法中，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量。In a possible implementation manner, in the method provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the antenna of the second pilot resource. The number of ports is equal to the number of antenna ports corresponding to the second CSI.

在网络侧，本申请实施例提供的一种信道状态信息CSI的获取装置，如图7所示，包括：第一单元702，用于通过预先为用户设备UE配置的第一导频资源发送第一导频信号至所述UE；第二单元704，连接至所述第一单元702，用于接收所述UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的。On the network side, the apparatus for acquiring channel state information CSI provided by the embodiment of the present application, as shown in FIG. 7 , includes: a first unit 702, configured to send, by using a first pilot resource configured in advance for the user equipment UE a pilot signal is sent to the UE; a second unit 704 is connected to the first unit 702, configured to receive CSI fed back by the UE by using a first process configured in advance for the UE, and configured by configuring the UE in advance The second process is fed back by the CSI, wherein the CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement.

本申请实施例提供的装置中，该装置接收到UE通过第一进程和第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，该通过第一进程反馈的CSI和通过第二进程反馈的CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the device provided by the embodiment of the present application, the device receives the CSI that is fed back by the UE through the first process and the second process, and is calculated by the UE based on at least the first pilot signal measurement, and the CSI and the feedback passed by the first process are obtained. The CSI fed back by the second process is calculated based on at least the first pilot signal measurement, and reflects channel state information of the first pilot signal from two dimensions, for example, a horizontal dimension and a vertical dimension, reflecting the 3D-MIMO shaped shape. The overall channel state information is such that the base station can directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE. Compared with the manner in which the UE reports based on the codebook in the prior art, the UE calculates and calculates the pilot signal. Obtaining the first process and the second process feedback CSI reduces the processing difficulty of the UE.

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过所述第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。 In a possible implementation manner, in the apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1, The number of antenna ports corresponding to the CSI fed back by the second process is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一单元702还用于：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the apparatus provided by the embodiment of the present application, the first unit 702 is further configured to: send, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the The CSI that is fed back by the first process and the CSI that is fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: feedback by using the first process. The CSI is calculated by the UE based on the first pilot signal measurement; the CSI fed back by the second process is that the UE is based on the first pilot signal and the second pilot signal Calculated by common measurements.

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一单元702还用于：通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。In a possible implementation manner, in the apparatus provided by the embodiment of the present application, the first unit 702 is further configured to: send, by using a second pilot resource configured in advance for the user equipment UE, a second pilot signal to the The CSI that is fed back by the first process and the CSI that is fed back by the second process are calculated by the UE based on the measurement of the first pilot signal, specifically: feedback by using the first process. The CSI is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal; and the CSI fed back by the second process is that the UE is based on the first pilot The signal and the second pilot signal are jointly measured and calculated.

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一导频资源的天线端口数量等于通过所述第一进程反馈的CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于通过所述第二进程反馈的CSI对应的天线端口数量。In a possible implementation, in the apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the second guide The number of antenna ports of the frequency resource is equal to the number of antenna ports corresponding to the CSI fed back by the second process.

在本申请实施例中，所述装置可以是基站等网络设备，其中，第一单元702可以采用信号发射器或发射机，第二单元704可以采用信号接收器或接收机。In the embodiment of the present application, the device may be a network device such as a base station, where the first unit 702 may employ a signal transmitter or a transmitter, and the second unit 704 may employ a signal receiver or a receiver.

参见图8，本申请实施例提供的网络侧的另一种CSI的获取装置包括：Referring to FIG. 8, another CSI acquiring apparatus on the network side provided by the embodiment of the present application includes:

处理器800，用于读取存储器820中的程序，执行下列过程：The processor 800 is configured to read a program in the memory 820 and perform the following process:

使用收发机810通过预先为用户设备UE配置的第一导频资源发送第一导频信号至UE；Transmitting, by the transceiver 810, the first pilot signal to the UE by using a first pilot resource configured in advance for the user equipment UE;

通过收发机810接收UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过第一进程反馈的CSI和通过第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的。Receiving, by the transceiver 810, the CSI fed back by the UE by the first process configured for the UE in advance, and the CSI fed back by the second process configured for the UE in advance, wherein the CSI fed back through the first process and the feedback through the second process The CSI is calculated by the UE based on at least the first pilot signal measurement.

收发机810，用于在处理器800的控制下接收和发送数据。The transceiver 810 is configured to receive and transmit data under the control of the processor 800.

处理器800还用于：The processor 800 is also used to:

使用收发机810通过预先为用户设备UE配置的第二导频资源发送第二导频信号至UE；Transmitting, by the transceiver 810, a second pilot signal to the UE by using a second pilot resource configured in advance for the user equipment UE;

通过收发机接收UE通过第一进程反馈的CSI和通过第二进程反馈的CSI，其中，通过第一进程反馈的CSI，是UE基于第一导频信号测量计算得到的；通过第二进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的。 Receiving, by the transceiver, the CSI fed back by the UE through the first process and the CSI fed back by the second process, where the CSI fed back by the first process is calculated by the UE based on the measurement of the first pilot signal; The CSI is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal.

处理器800，还用于：The processor 800 is further configured to:

通过收发机接收UE通过第一进程反馈的CSI和通过第二进程反馈的CSI，其中，通过第一进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的；通过第二进程反馈的CSI，是UE基于第一导频信号和第二导频信号共同测量计算得到的。Receiving, by the transceiver, the CSI fed back by the UE through the first process and the CSI fed back by the second process, where the CSI fed back by the first process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal. The CSI fed back through the second process is calculated by the UE based on the common measurement of the first pilot signal and 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，具体由处理器800代表的一个或多个处理器和存储器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。收发机810可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。Wherein, in FIG. 8, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by 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. Transceiver 810 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.

在用户设备侧，本申请实施例提供的一种信道状态信息CSI的反馈装置，如图9所示，包括：资源确定单元902，用于确定网络侧预先为该装置所在的用户设备UE配置的第一导频资源、第一进程和第二进程；测量单元904，连接至所述资源确定单元902，用于至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；反馈单元906，连接至所述资源确定单元902和所述测量单元904，用于通过所述第一进程将所述第一CSI反馈至网络侧，并通过所述第二进程将所述第二CSI反馈至网络侧。On the user equipment side, the feedback device of the channel state information CSI provided by the embodiment of the present application, as shown in FIG. 9, includes: a resource determining unit 902, configured to determine that the network side is configured in advance for the user equipment UE where the device is located. a first pilot resource, a first process, and a second process; the measuring unit 904 is connected to the resource determining unit 902, configured to calculate, according to at least the first pilot signal sent by the network side by using the first pilot resource Obtaining a first CSI and a second CSI; a feedback unit 906, connected to the resource determining unit 902 and the measuring unit 904, for feeding back the first CSI to the network side by using the first process, and passing the The second process feeds back the second CSI to the network side.

本申请实施例提供的装置中，该装置所在的UE至少基于第一导频信号测量计算得到第CSI和第二CSI，该第一CSI和第二CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，与现有技术中UE基于码本上报的方式相比，UE通过对导频信号测量计算得到第一进程和第二进程反馈CSI，降低了UE的处理难度。In the apparatus provided by the embodiment of the present application, the UE where the device is located calculates the CSI and the second CSI based on at least the first pilot signal measurement, and the first CSI and the second CSI are calculated based on at least the first pilot signal measurement. Reflecting the channel state information of the first pilot signal from two dimensions, for example, the horizontal dimension and the vertical dimension, reflecting the overall channel state information after 3D-MIMO shaping, so that the base station can receive the CSI fed back by the UE, Directly applied to the 3D-MIMO shaping, compared with the manner in which the UE reports based on the codebook in the prior art, the UE obtains the first process and the second process feedback CSI by measuring the pilot signal, thereby reducing the processing difficulty of the UE. .

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。In a possible implementation manner, in the apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is N, the number of antenna ports corresponding to the first CSI is N1, and the second CSI The number of corresponding antenna ports is N2, and the product of N1 and N2 is equal to N.

在一种可能的实施方式中，本申请实施例提供的装置中，所述资源确定单元902还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源；所述测量单元904，具体用于：基于所述第一导频信号测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation, in the apparatus provided by the embodiment of the present application, the resource determining unit 902 is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located; 904. The method is specifically configured to: calculate, according to the first pilot signal, a first CSI, based on the first pilot signal and a network side pass. The second pilot signal transmitted by the second pilot resource is jointly measured and calculated to obtain a second CSI.

在一种可能的实施方式中，本申请实施例提供的装置中，所述资源确定单元902还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源；所述测量单元904，具体用于：基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。In a possible implementation, in the apparatus provided by the embodiment of the present application, the resource determining unit 902 is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located; 904. Specifically, the first CSI is calculated and calculated based on the first pilot signal and the second pilot signal sent by the network side by using the second pilot resource; and the first pilot signal and the network are used. The second pilot signal sent by the second pilot resource is jointly measured and calculated to obtain a second CSI.

在一种可能的实施方式中，本申请实施例提供的装置中，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量。In a possible implementation manner, in the apparatus provided by the embodiment of the present application, the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the antenna of the second pilot resource The number of ports is equal to the number of antenna ports corresponding to the second CSI.

在本申请实施例中，该装置可以是UE的一部分，也可以是UE或者其它终端设备，其中，资源确定单元902可以采用信号接收器或接收机，测量单元904可以采用单片机或CPU处理器，反馈单元906可以采用信号发射器或发射机。In this embodiment, the device may be part of the UE, or may be a UE or other terminal device, where the resource determining unit 902 may employ a signal receiver or a receiver, and the measuring unit 904 may use a single chip microcomputer or a CPU processor. Feedback unit 906 can employ a signal transmitter or transmitter.

参见图10，本申请实施例提供的UE侧的另一种CSI的反馈装置包括：Referring to FIG. 10, another CSI feedback device on the UE side provided by the embodiment of the present application includes:

处理器100，用于读取存储器120中的程序，执行下列过程：The processor 100 is configured to read a program in the memory 120 and perform the following process:

确定网络侧预先为该装置配置的第一导频资源、第一进程和第二进程；Determining, by the network side, a first pilot resource, a first process, and a second process that are configured in advance for the device;

至少基于网络侧通过第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；Determining, by the network side, the first CSI and the second CSI by using the first pilot signal sent by the first pilot resource;

通过收发机110将第一CSI反馈至网络侧，并将第二CSI反馈至网络侧。The first CSI is fed back to the network side by the transceiver 110, and the second CSI is fed back to the network side.

收发机110，用于在处理器100的控制下接收和发送数据。The transceiver 110 is configured to receive and transmit data under the control of the processor 100.

处理器100还用于：The processor 100 is also used to:

确定网络侧预先为该装置配置的第二导频资源；Determining, by the network side, a second pilot resource configured in advance for the device;

基于第一导频信号测量计算得到第一CSI；基于第一导频信号和网络侧通过第二导频资源发送的第二导频信号共同测量计算得到第二CSI；Calculating a first CSI based on the first pilot signal measurement; calculating a second CSI based on the first pilot signal and the second pilot signal sent by the network side through the second pilot resource;

处理器100还用于：The processor 100 is also used to:

基于第一导频信号和网络侧通过第二导频资源发送的第二导频信号共同测量计算得到第一CSI；基于第一导频信号和网络侧通过第二导频资源发送的第二导频信号共同测量计算得到第二CSI；And calculating, by using the first pilot signal and the second pilot signal sent by the second pilot resource on the network side, the first CSI; and the second pilot based on the first pilot signal and the second pilot resource sent by the network side. The frequency signal is jointly measured and calculated to obtain a second CSI;

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，具体由处理器100 代表的一个或多个处理器和存储器120代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机110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130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。Wherein, in FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically by the processor 100. The various circuits represented by one or more processors and memory represented by memory 120 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 110 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 130 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.

处理器100负责管理总线架构和通常的处理，存储器120可以存储处理器100在执行操作时所使用的数据。The processor 100 is responsible for managing the bus architecture and general processing, and the memory 120 can store data used by the processor 100 in performing operations.

综上所述，本申请实施例中基站接收到UE通过第一进程和第二进程反馈的CSI，是UE至少基于第一导频信号测量计算得到的，该通过第一进程反馈的CSI和通过第二进程反馈的CSI至少基于第一导频信号测量计算得到，从两个维度反映了第一导频信号的信道状态信息，例如：水平维度和垂直维度，反映了3D-MIMO赋形后的整体信道状态信息，使得基站在接收到UE反馈的CSI之后，可以直接应用于3D-MIMO的赋形，无需基站对接收到的CSI进一步处理，降低了基站的处理难度，同时降低了UE的处理难度。In summary, in the embodiment of the present application, the base station receives the CSI that is fed back by the UE through the first process and the second process, and is calculated by the UE based on at least the first pilot signal measurement, and the CSI and the feedback passed by the first process are obtained. The CSI fed back by the second process is calculated based on at least the first pilot signal measurement, and reflects channel state information of the first pilot signal from two dimensions, for example, a horizontal dimension and a vertical dimension, reflecting the 3D-MIMO shaped shape. The overall channel state information enables the base station to directly apply to the 3D-MIMO shaping after receiving the CSI fed back by the UE, without further processing by the base station on the received CSI, which reduces the processing difficulty of the base station and reduces the processing of the UE. Difficulty.

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

Claims

一种信道状态信息CSI的获取方法，其特征在于，包括：A method for acquiring channel state information CSI, comprising:

通过预先为用户设备UE配置的第一导频资源发送第一导频信号至所述UE；Transmitting a first pilot signal to the UE by using a first pilot resource configured in advance for the user equipment UE;

接收所述UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的。Receiving, by the CSI, the CSI fed back by the first process configured for the UE in advance, and the CSI fed back by the second process configured in advance for the UE, where the CSI fed back through the first process and the second pass The CSI fed back by the process is that the UE is calculated based on at least the first pilot signal measurement.
根据权利要求1所述的方法，其特征在于，所述第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过所述第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。The method according to claim 1, wherein the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1, and the second process is adopted. The number of antenna ports corresponding to the fed CSI is N2, and the product of N1 and N2 is equal to N.
根据权利要求1或2所述的方法，其特征在于，Method according to claim 1 or 2, characterized in that

所述第一进程反馈的CSI，包括：预编码矩阵指示PMI信息；The CSI fed back by the first process includes: a precoding matrix indicating PMI information;

所述第二进程反馈的CSI，包括：PMI信息和信道质量指示CQI信息，其中，所述CQI信息是所述UE基于所述第一进程反馈的PMI信息和所述第二进程反馈的PMI信息得到的。The CSI that is fed back by the second process includes: PMI information and channel quality indicator CQI information, where the CQI information is PMI information that is fed back by the UE based on the first process, and PMI information that is fed back by the second process. owned.
根据权利要求1所述的方法，其特征在于，还包括：The method of claim 1 further comprising:

通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；Transmitting a second pilot signal to the UE by using a second pilot resource configured in advance for the user equipment UE;

通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：The CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement, specifically:

通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。The CSI fed back by the first process is calculated by the UE based on the first pilot signal measurement; and the CSI fed back by the second process is that the UE is based on the first pilot signal and The second pilot signals are jointly measured and calculated.
根据权利要求1所述的方法，其特征在于，还包括：The method of claim 1 further comprising:

通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；Transmitting a second pilot signal to the UE by using a second pilot resource configured in advance for the user equipment UE;

通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：The CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement, specifically:

通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。The CSI fed back by the first process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal; and the CSI fed back by the second process is the UE. Calculated based on the common measurement of the first pilot signal and the second pilot signal.
根据权利要求4或5所述的方法，其特征在于，所述第一进程反馈的CSI，包括：PMI信息。The method according to claim 4 or 5, wherein the CSI fed back by the first process comprises: PMI information.
根据权利要求6所述的方法，其特征在于，所述第一进程反馈的CSI，还包括：所述PMI信息对应的秩指示RI信息。The method according to claim 6, wherein the CSI fed back by the first process further comprises: The rank corresponding to the PMI information indicates RI information.
根据权利要求7所述的方法，其特征在于，所述第二进程反馈的CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二进程反馈的PMI信息和所述第一进程反馈的PMI信息得到的CQI信息。The method according to claim 7, wherein the CSI fed back by the second process comprises: PMI information, RI information corresponding to the PMI information, and PMI information and the first information fed back based on the second process. The CQI information obtained by the PMI information fed back by the process.
根据权利要求4或5所述的方法，其特征在于，所述第一导频资源的天线端口数量等于通过所述第一进程反馈的CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于通过所述第二进程反馈的CSI对应的天线端口数量。The method according to claim 4 or 5, wherein the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the second pilot resource The number of antenna ports is equal to the number of antenna ports corresponding to the CSI fed back by the second process.
根据权利要求4或5所述的方法，其特征在于，所述第一导频资源的配置周期为所述第二导频资源的配置周期的L倍，其中，L为大于或等于1的正整数。The method according to claim 4 or 5, wherein the configuration period of the first pilot resource is L times of a configuration period of the second pilot resource, where L is greater than or equal to Integer.
根据权利要求4或5所述的方法，其特征在于，所述第一进程反馈的CSI的反馈周期为所述第二进程反馈的CSI的反馈周期的L倍，其中，L为大于或等于1的正整数。The method according to claim 4 or 5, wherein the feedback period of the CSI fed back by the first process is L times the feedback period of the CSI fed back by the second process, where L is greater than or equal to 1 Positive integer.
根据权利要求4或5所述的方法，其特征在于，所述第一导频资源和所述第二导频资源，为信道状态信息参考信号CSI-RS资源或公共参考信号CRS资源。The method according to claim 4 or 5, wherein the first pilot resource and the second pilot resource are channel state information reference signal CSI-RS resources or common reference signal CRS resources.
一种信道状态信息CSI的反馈方法，其特征在于，包括：A method for feeding back channel state information CSI, comprising:

用户设备UE确定网络侧预先为该UE配置的第一导频资源、第一进程和第二进程；The user equipment UE determines a first pilot resource, a first process, and a second process that are configured by the network side in advance for the UE;

所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；Determining, by the UE, the first CSI and the second CSI based on the first pilot signal measurement sent by the network side by using the first pilot resource;

所述UE通过所述第一进程将所述第一CSI反馈至网络侧，并通过所述第二进程将所述第二CSI反馈至网络侧。The UE feeds back the first CSI to the network side by using the first process, and feeds the second CSI to the network side by using the second process.
根据权利要求13所述的方法，其特征在于，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。The method according to claim 13, wherein the number of antenna ports of the first pilot resource is N, the number of antenna ports corresponding to the first CSI is N1, and the number of antenna ports corresponding to the second CSI It is N2, and the product of N1 and N2 is equal to N.
根据权利要求13所述的方法，其特征在于，The method of claim 13 wherein:

所述第一CSI，包括：预编码矩阵指示PMI信息；The first CSI includes: a precoding matrix indicating PMI information;

所述第二CSI，包括：PMI信息和信道质量指示CQI信息，其中，所述CQI信息是所述UE基于所述第一CSI中的PMI信息和所述第二CSI中的PMI信息得到的。The second CSI includes: PMI information and channel quality indication CQI information, where the CQI information is obtained by the UE based on PMI information in the first CSI and PMI information in the second CSI.
根据权利要求13所述的方法，其特征在于，还包括：The method of claim 13 further comprising:

所述UE确定网络侧预先为该UE配置的第二导频资源；Determining, by the UE, a second pilot resource configured by the network side for the UE in advance;

所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：The UE calculates the first CSI and the second CSI by using the first pilot signal that is sent by using the first pilot resource by the network side, specifically:

所述UE基于所述第一导频信号测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。Determining, by the UE, a first CSI based on the first pilot signal measurement; the UE is based on the first pilot signal The second CSI is calculated and calculated by the second pilot signal sent by the second pilot resource on the network side.
根据权利要求13所述的方法，其特征在于，还包括：The method of claim 13 further comprising:

所述UE确定网络侧预先为该UE配置的第二导频资源；Determining, by the UE, a second pilot resource configured by the network side for the UE in advance;

所述UE至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI，具体为：The UE calculates the first CSI and the second CSI by using the first pilot signal that is sent by using the first pilot resource by the network side, specifically:

所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；所述UE基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。Determining, by the UE, the first CSI according to the first pilot signal and the second pilot signal sent by the network side by using the second pilot resource; the UE is based on the first pilot signal and the network The second pilot signal sent by the second pilot resource is jointly measured and calculated to obtain a second CSI.
根据权利要求16或17所述的方法，其特征在于，所述第一CSI，包括：PMI信息。The method according to claim 16 or 17, wherein the first CSI comprises: PMI information.
根据权利要求18所述的方法，其特征在于，所述第一CSI，还包括：所述PMI信息对应的秩指示RI信息。The method according to claim 18, wherein the first CSI further comprises: a rank indicating RI information corresponding to the PMI information.
根据权利要求19所述的方法，其特征在于，所述第二CSI，包括：PMI信息、该PMI信息对应的RI信息，以及基于该第二CSI中的PMI信息和所述第一CSI中的PMI信息得到的CQI信息。The method according to claim 19, wherein the second CSI comprises: PMI information, RI information corresponding to the PMI information, and based on PMI information in the second CSI and in the first CSI CQI information obtained from PMI information.
根据权利要求16或17所述的方法，其特征在于，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量。The method according to claim 16 or 17, wherein the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the number of antenna ports of the second pilot resource is equal to The number of antenna ports corresponding to the second CSI.
一种信道状态信息CSI的获取装置，其特征在于，包括：An apparatus for acquiring channel state information CSI, comprising:

第一单元，用于通过预先为用户设备UE配置的第一导频资源发送第一导频信号至所述UE；a first unit, configured to send a first pilot signal to the UE by using a first pilot resource configured in advance for the user equipment UE;

第二单元，连接至所述第一单元，用于接收所述UE通过预先为该UE配置的第一进程反馈的CSI，以及通过预先为该UE配置的第二进程反馈的CSI，其中，通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的。a second unit, connected to the first unit, configured to receive CSI fed back by the UE by using a first process configured in advance for the UE, and CSI fed back by a second process configured in advance for the UE, where The CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement.
根据权利要求22所述的装置，其特征在于，所述第一导频资源的天线端口数量为N，通过所述第一进程反馈的CSI对应的天线端口数量为N1，通过所述第二进程反馈的CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。The device according to claim 22, wherein the number of antenna ports of the first pilot resource is N, and the number of antenna ports corresponding to the CSI fed back by the first process is N1, and the second process is adopted. The number of antenna ports corresponding to the fed CSI is N2, and the product of N1 and N2 is equal to N.
根据权利要求22所述的装置，其特征在于，所述第一单元还用于：The device according to claim 22, wherein the first unit is further configured to:

通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；Transmitting a second pilot signal to the UE by using a second pilot resource configured in advance for the user equipment UE;

通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：The CSI fed back by the first process and the CSI fed back by the second process are that the UE is based at least on The first pilot signal is measured and calculated, and specifically:

通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。The CSI fed back by the first process is calculated by the UE based on the first pilot signal measurement; and the CSI fed back by the second process is that the UE is based on the first pilot signal and The second pilot signals are jointly measured and calculated.
根据权利要求22所述的装置，其特征在于，所述第一单元还用于：The device according to claim 22, wherein the first unit is further configured to:

通过预先为用户设备UE配置的第二导频资源发送第二导频信号至所述UE；Transmitting a second pilot signal to the UE by using a second pilot resource configured in advance for the user equipment UE;

通过所述第一进程反馈的CSI和通过所述第二进程反馈的CSI，是所述UE至少基于所述第一导频信号测量计算得到的，具体为：The CSI fed back by the first process and the CSI fed back by the second process are calculated by the UE based on at least the first pilot signal measurement, specifically:

通过所述第一进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的；通过所述第二进程反馈的CSI，是所述UE基于所述第一导频信号和所述第二导频信号共同测量计算得到的。The CSI fed back by the first process is calculated by the UE based on the common measurement of the first pilot signal and the second pilot signal; and the CSI fed back by the second process is the UE. Calculated based on the common measurement of the first pilot signal and the second pilot signal.
根据权利要求24或25所述的装置，其特征在于，所述第一导频资源的天线端口数量等于通过所述第一进程反馈的CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于通过所述第二进程反馈的CSI对应的天线端口数量。The device according to claim 24 or 25, wherein the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the CSI fed back by the first process, and the second pilot resource The number of antenna ports is equal to the number of antenna ports corresponding to the CSI fed back by the second process.
一种信道状态信息CSI的反馈装置，其特征在于，包括：A feedback device for channel state information CSI, comprising:

资源确定单元，用于确定网络侧预先为该装置所在的用户设备UE配置的第一导频资源、第一进程和第二进程；a resource determining unit, configured to determine a first pilot resource, a first process, and a second process that are configured by the network side in advance for the user equipment UE where the device is located;

测量单元，连接至所述资源确定单元，用于至少基于网络侧通过所述第一导频资源发送的第一导频信号测量计算得到第一CSI和第二CSI；The measuring unit is connected to the resource determining unit, configured to calculate the first CSI and the second CSI based on at least the first pilot signal measurement sent by the network side by using the first pilot resource;

反馈单元，连接至所述资源确定单元和所述测量单元，用于通过所述第一进程将所述第一CSI反馈至网络侧，并通过所述第二进程将所述第二CSI反馈至网络侧。a feedback unit, configured to connect to the resource determining unit and the measuring unit, to feed back the first CSI to the network side by using the first process, and feed back the second CSI to the second process by using the second process Network side.
根据权利要求27所述的装置，其特征在于，所述第一导频资源的天线端口数量为N，所述第一CSI对应的天线端口数量为N1，所述第二CSI对应的天线端口数量为N2，且N1和N2的乘积等于N。The device according to claim 27, wherein the number of antenna ports of the first pilot resource is N, the number of antenna ports corresponding to the first CSI is N1, and the number of antenna ports corresponding to the second CSI It is N2, and the product of N1 and N2 is equal to N.
根据权利要求27所述的装置，其特征在于，所述资源确定单元还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源；The device according to claim 27, wherein the resource determining unit is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located;

所述测量单元，具体用于：The measuring unit is specifically configured to:

基于所述第一导频信号测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。Calculating a first CSI based on the first pilot signal measurement; and calculating a second CSI based on the first pilot signal and a second pilot signal sent by the network side by using the second pilot resource.
根据权利要求27所述的装置，其特征在于，所述资源确定单元还用于：确定网络侧预先为该装置所在的UE配置的第二导频资源； The device according to claim 27, wherein the resource determining unit is further configured to: determine, by the network side, a second pilot resource that is configured in advance for the UE where the device is located;

所述测量单元，具体用于：The measuring unit is specifically configured to:

基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第一CSI；基于所述第一导频信号和网络侧通过所述第二导频资源发送的第二导频信号共同测量计算得到第二CSI。Calculating a first CSI based on the first pilot signal and a second pilot signal sent by the network side by using the second pilot resource; and adopting the second pilot based on the first pilot signal and the network side The second pilot signal transmitted by the pilot resource is jointly measured and calculated to obtain a second CSI.
根据权利要求29或30所述的装置，其特征在于，所述第一导频资源的天线端口数量等于所述第一CSI对应的天线端口数量，所述第二导频资源的天线端口数量等于所述第二CSI对应的天线端口数量 The device according to claim 29 or 30, wherein the number of antenna ports of the first pilot resource is equal to the number of antenna ports corresponding to the first CSI, and the number of antenna ports of the second pilot resource is equal to Number of antenna ports corresponding to the second CSI