WO2012022247A1

WO2012022247A1 - Method, apparatus and system for feeding back channel state information

Info

Publication number: WO2012022247A1
Application number: PCT/CN2011/078413
Authority: WO
Inventors: 高雪娟; 沈祖康; 林亚男; 潘学明
Original assignee: 电信科学技术研究院
Priority date: 2010-08-16
Filing date: 2011-08-15
Publication date: 2012-02-23
Also published as: CN102377530B; CN102377530A

Abstract

The present application relates to the field of communications and, in particular, to a method, apparatus and system for feeding back CSI and receiving the same, and the method comprises: establishing a CSI feedback mechanism for an LTE-A system, i.e. with periodic CSI to be fed back being transmitted via a PUCCH and non-periodic CSI to be fed back being transmitted via a PUSCH when there are periodic CSI and non-periodic CSI corresponding to a plurality of downlink carriers in one uplink subframe simultaneously. In this way, the simultaneous transmission of the periodic CSI and non-periodic CSI in one uplink subframe is achieved via the PUCCH and PUSCH, thus avoiding the periodic CSI or non-periodic CSI corresponding to part of the downlink carriers being discarded, so that the base station side can promptly obtain the channel state information of different downlink carriers, thereby improving the accuracy of system downlink scheduling and the reliability of system service. The present application also provides a corresponding apparatus and system.

Description

一种反馈信道状态信息的方法、装置及*** 本申请要求在 2010年 8月 16日提交中国专利局、申请号为 201010254898.7、发明名称为"一种反馈信道状态信息的方法、装置及***"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。技术领域 The present invention claims to be submitted to the Chinese Patent Office on August 16, 2010, the application number is 201010254898.7, and the invention name is "a method, device and system for feedback channel state information". Priority of Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

本发明涉及通信领域，特别涉及一种反馈信道状态信息的方法、装置及系统。背景技术 The present invention relates to the field of communications, and in particular, to a method, apparatus, and system for feeding back channel state information. Background technique

在长期演进升级（ Long Term Evolution- Advanced, LTE- Advanced ) ***中，简称 LTE-A***，为支持比 LTE***更宽的***带宽，如 100MHz, 通常是釆用以下两种频谱分配方式： In the Long Term Evolution-Advanced (LTE-Advanced) system, referred to as the LTE-A system, in order to support a wider system bandwidth than the LTE system, such as 100 MHz, the following two spectrum allocation methods are usually used:

一种是釆用单频谱的方式直接分配 100M带宽的频谱，具体如图 1所示。另一种是釆用频谱聚合的方式，将分配给现有***的频谱聚合成 100M带宽供***使用，具体如图 2所示，釆用频谱聚合方式时， LTE-A***中上下行载波可以不对称配置，即用户终端可以占用 N≥l个载波进行下行传输，占用 M≥l 个载波进行上行传输， N和 M可以不相等。 One is to directly allocate a spectrum of 100M bandwidth in a single spectrum manner, as shown in Figure 1. The other is to use the spectrum aggregation method to aggregate the spectrum allocated to the existing system into 100M bandwidth for use by the system. As shown in Figure 2, when spectrum aggregation is used, the uplink and downlink carriers in the LTE-A system can be used. Asymmetric configuration, that is, the user terminal can occupy N≥1 carriers for downlink transmission, occupying M≥1 carriers for uplink transmission, and N and M can be unequal.

目前，标准化工作已经基本完成的 LTE***的协议 Rel-8中制定了如下方案，上行控制信息（Uplink Control Information, UCI )可在物理上行控制信道 ( Physical Uplink Control Channel, PUCCH )上进行传输，也可在物理上行共享信道（Physical Uplink Shared Channel, PUSCH ) 与数据复用传输。所谓的 UCI 信息，包括信道状态信息 ( Channel State Information, CSI )、调度请求（ Scheduling Request, SR )和应答信息（包括肯定确认 ACK/否定确认 NACK ), 其中， CSI 又包括信道质量指示（Channel Quality Indicator , CQI )、预编码矩阵索引 ( Precoding Metrix Indicator, PMI )和秩才旨示 ( Rank Indication, RI )。 At present, the following scheme is implemented in the protocol Rel-8 of the LTE system in which the standardization work has been completed. The uplink control information (UCI) can be transmitted on the physical uplink control channel (PUCCH). It can be multiplexed and transmitted in the physical uplink shared channel (PUSCH) and data. The so-called UCI information includes Channel State Information (CSI), Scheduling Request (SR), and response information (including positive acknowledgment ACK/negative acknowledgment NACK), where CSI includes channel quality indicator (Channel Quality). Indicator, CQI), Precoding Metrix Indicator (PMI), and Rank Indication (RI).

实际应用中， CSI又分为周期 CSI和非周期 CSI。非周期 CSI的上报在 PUSCH 中进行传输，通过上行调度信令（ UL grant )中 lbit的 CQI请求信息（ CQI request ) 触发。 UE检测到 UL grant中该信息位置为 1 , 则按照预先配置的反馈模式组织相关的 CSI复用到 PUSCH中进行传输，否则，不传输；参阅图 3所示，非周期 CSI在 PUSCH上使用的传输资源是根据非周期 CSI(包括 CQI信息和 PMI信息和 RI信息）的反馈信息长度和配置预留的，数据部分不占用非周期 CSI的传输资源，其中 CQI信息和 PMI信息与数据一起进行资源映射， RI信息则单独进行资源映射，紧挨着 ACK/NACK的四列符号先时域后频域从低频到高频映射。而周期 CSI的上报则根据预先配置的上报周期在 PUCCH中进行传输，可釆用的信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种。 In practical applications, CSI is divided into periodic CSI and aperiodic CSI. Aperiodic CSI reporting on PUSCH The transmission is performed, and is triggered by lbit CQI request information (CQI request) in the uplink scheduling signaling (UL grant). If the UE detects that the information location is 1 in the UL grant, the related CSI is multiplexed into the PUSCH for transmission according to the pre-configured feedback mode. Otherwise, the transmission is not performed. Referring to FIG. 3, the aperiodic CSI is used on the PUSCH. The transmission resource is reserved according to the length and configuration of the feedback information of the aperiodic CSI (including the CQI information and the PMI information and the RI information), and the data part does not occupy the transmission resource of the aperiodic CSI, where the CQI information and the PMI information are combined with the data. The mapping and RI information are separately mapped by resources, and the four-column symbols of the ACK/NACK are immediately mapped from the low frequency to the high frequency after the time domain. The periodic CSI report is transmitted in the PUCCH according to the pre-configured reporting period, and the available channel format is any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b.

为了保持单载波特性，协议 Rel-8中规定， LTE***不支持同一 UE在一个上行子帧中同时传输 PUCCH和 PUSCH。因此，釆用 PUCCH传输周期 CSI、 ACK/NACK以及 SR只发生在不存在 PUSCH传输的上行子帧，在存在 PUSCH 传输的上行子帧中， CSI、 ACK/NACK的反馈需在 PUSCH上与数据进行复用传输，其中如果 CSI为周期 CSI, 则在 PUSCH上传输的 CSI信息按照 PUCCH对应的周期 CSI上报格式进行上报。当周期 CSI与非周期 CSI上报发生在同一上行子帧中时， UE丟弃周期 CSI上报，只在 PUSCH上报非周期 CSI。 In order to maintain the single carrier characteristic, the protocol Rel-8 specifies that the LTE system does not support the same UE transmitting PUCCH and PUSCH simultaneously in one uplink subframe. Therefore, the PUCCH transmission period CSI, ACK/NACK, and SR only occur in the uplink subframe in which the PUSCH transmission does not exist. In the uplink subframe in which the PUSCH transmission exists, the feedback of the CSI and the ACK/NACK needs to be performed on the PUSCH and the data. The multiplexed transmission, wherein if the CSI is a periodic CSI, the CSI information transmitted on the PUSCH is reported in a periodic CSI reporting format corresponding to the PUCCH. When the periodic CSI and the aperiodic CSI report occur in the same uplink subframe, the UE discards the periodic CSI report, and only reports the aperiodic CSI on the PUSCH.

与 LTE***保持兼容性， LTE-A***支持 UCI信息在 PUCCH和 /或 PUSCH 的传输，且支持同一 UE在一个上行子帧中同时传输 PUCCH和 PUSCH。目前， LTE-A***最多可支持 5个载波进行聚合，即在同一个上行子帧内，为了便于下行调度， UE需要反馈对应多个下行载波的周期 CSI和非周期 CSI, CSI的反馈量较大。考虑到 LTE-A***中的周期 CSI和非周期 CSI可能分别对应不同的下行载波，丟弃 CSI信息将造成基站无法及时获得部分下行载波的信道状态信息，从而影响下行调度的准确性，因此，协议 Rel-8中制定的针对 LTE***的 CSI反馈方式已不再适用于 LTE-A***，对于 LTE-A***，需要制定新的 CSI 反馈机制。发明内容 In keeping with the LTE system, the LTE-A system supports transmission of UCI information on PUCCH and/or PUSCH, and supports simultaneous transmission of PUCCH and PUSCH by the same UE in one uplink subframe. At present, the LTE-A system can support up to five carriers for aggregation, that is, in the same uplink subframe, in order to facilitate downlink scheduling, the UE needs to feed back the periodic CSI and the aperiodic CSI corresponding to multiple downlink carriers, and the feedback amount of the CSI is compared. Big. Considering that the periodic CSI and the aperiodic CSI in the LTE-A system may respectively correspond to different downlink carriers, discarding the CSI information may cause the base station to fail to obtain the channel state information of the part of the downlink carrier in time, thereby affecting the accuracy of the downlink scheduling. The CSI feedback mode for the LTE system formulated in the protocol Rel-8 is no longer applicable to the LTE-A system. For the LTE-A system, a new CSI feedback mechanism needs to be developed. Summary of the invention

本发明实施例提供一种反馈信道状态信息的方法、装置及***，用于在 Embodiments of the present invention provide a method, device, and system for feeding back channel state information, which are used in

LTE-A***中，在同一个上行子帧中，实现周期 CSI和非周期 CSI在 PUCCH 和 PUSCH上的同时反馈。 In the LTE-A system, simultaneous feedback of periodic CSI and aperiodic CSI on PUCCH and PUSCH is implemented in the same uplink subframe.

本发明实施例提供的具体技术方案如下： The specific technical solutions provided by the embodiments of the present invention are as follows:

一种 CSI的反馈方法，包括： A feedback method for CSI, including:

UE确定用于传输 CSI的 PUCCH所在的第一上行载波，和用于传输 CSI的 PUSCH所在的第二上行载波； Determining, by the UE, a first uplink carrier where the PUCCH for transmitting the CSI is located, and a second uplink carrier where the PUSCH for transmitting the CSI is located;

所述 UE确定待反馈的周期 CSI和非周期 CSI; Determining, by the UE, a periodic CSI and an aperiodic CSI to be fed back;

所述 UE在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI; 所述 UE在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 The UE sends the periodic CSI to be fed back through the PUCCH in the first uplink carrier; the UE sends the acyclic period to be fed back through the PUSCH in the second uplink carrier.

CSI。 CSI.

一种信道状态信息 CSI的接收方法，包括： A method for receiving channel state information CSI includes:

基站确定用于传输 CSI的 PUCCH所在的第一上行载波，和用于传输 CSI 的 PUSCH所在的第二上行载波； Determining, by the base station, a first uplink carrier where the PUCCH for transmitting the CSI is located, and a second uplink carrier where the PUSCH for transmitting the CSI is located;

所述基站确定 UE发送的周期 CSI和非周期 CSI的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数； Determining, by the base station, an attribute of a periodic CSI and an aperiodic CSI sent by the UE, where the attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a feedback bit number of the periodic CSI and the aperiodic CSI sent by the UE;

所述基站在所述第一上行载波内，基于所述周期 CSI的属性，通过 PUCCH 接收所述 UE发送的周期 CSI; The base station receives, in the first uplink carrier, a periodic CSI sent by the UE by using a PUCCH based on an attribute of the periodic CSI;

所述基站在所述第二上行载波内，基于所述非周期 CSI的属性，通过 PUSCH 接收所述 UE发送的非周期 CSI。 The base station receives, in the second uplink carrier, an aperiodic CSI sent by the UE by using a PUSCH based on an attribute of the aperiodic CSI.

一种 CSI的反馈装置，包括： A CSI feedback device, comprising:

预处理单元，用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI和非周期 CSI; a pre-processing unit, configured to determine a first uplink carrier where the PUCCH of the CSI is transmitted, and a second uplink carrier where the PUSCH for transmitting the CSI is located, and determine a periodic CSI and a non-period CSI to be fed back;

通信单元，用于在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI, 以及在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI。 a communication unit, configured to send the week to be fed back through the PUCCH in the first uplink carrier And transmitting, in the second uplink carrier, the aperiodic CSI to be fed back through the PUSCH.

一种信道状态信息 CSI的接收装置，包括： A receiving device for channel state information CSI, comprising:

预处理单元，用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定 UE发送的周期 CSI和非周期 CSI的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数； a pre-processing unit, configured to determine a first uplink carrier where a PUCCH for transmitting CSI is located, and a second uplink carrier where a PUSCH for transmitting CSI is located, and determine an attribute of a periodic CSI and an aperiodic CSI sent by the UE, where The attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a feedback bit number of the periodic CSI and the aperiodic CSI sent by the UE;

通信单元，用于在所述第一上行载波内，基于所述周期 CSI的属性，通过 PUCCH接收所述 UE发送的周期 CSI, 以及在所述第二上行载波内，基于所述非周期 CSI的属性，通过 PUSCH接收所述 UE发送的非周期 CSI。 a communication unit, configured to receive a periodic CSI sent by the UE by using a PUCCH, and a non-periodic CSI based on the non-periodic CSI in the second uplink carrier, in the first uplink carrier, according to an attribute of the periodic CSI Attribute, receiving, by using a PUSCH, the aperiodic CSI sent by the UE.

一种用于信道状态信息 CSI的反馈及接收的 LTE-A***，包括用户设备 UE 和基站，其中， An LTE-A system for feedback and reception of channel state information CSI, comprising a user equipment UE and a base station, where

UE, 用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI和非周期 CSI, 并在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI, 在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI; a UE, configured to determine a first uplink carrier where a PUCCH for transmitting CSI is located, and a second uplink carrier where a PUSCH for transmitting CSI is located, and determine a periodic CSI and an aperiodic CSI to be fed back, and at the first Transmitting the periodic CSI to be fed back through the PUCCH, and transmitting the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier;

基站，用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定 UE发送的周期 CSI和非周期 CSI 的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数；以及在所述第一上行载波内，基于所述周期 CSI的属性，通过 PUCCH接收所述 UE发送的周期 CSI, 以及在所述第二上行载波内，基于所述非周期 CSI的属性，通过 PUSCH接收所述 UE发送的非周期 CSI。 a base station, configured to determine a first uplink carrier where a PUCCH for transmitting CSI is located, and a second uplink carrier where a PUSCH for transmitting CSI is located, and determine an attribute of a periodic CSI and an aperiodic CSI sent by the UE, where the attribute is at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a number of feedback bits of the periodic CSI and the aperiodic CSI sent by the UE; and in the first uplink carrier, based on the attribute of the periodic CSI, through the PUCCH Receiving a periodic CSI sent by the UE, and receiving, in the second uplink carrier, an aperiodic CSI sent by the UE by using a PUSCH based on an attribute of the aperiodic CSI.

本发明实施例中，针对 LTE-A***，制定了 CSI的反馈机制，即当在一个上行子帧中同时存在对应多个下行载波的周期 CSI 和非周期 CSI 时，通过 PUCCH传输待反馈的周期 CSI, 通过 PUSCH传输待反馈的非周期 CSI, 这样，便通过 PUCCH和 PUSCH实现了周期 CSI和非周期 CSI在一个上行子帧内的同时传输，避免了对应于部分下行载波的周期 CSI或非周期 CSI的丟弃，令基站侧可以及时获得不同下行载波的信道状态信息，从而提高了***下行调度的准确性，提升了***的服务可靠性。附图说明 In the embodiment of the present invention, for the LTE-A system, a CSI feedback mechanism is set, that is, when there are periodic CSI and aperiodic CSI corresponding to multiple downlink carriers in one uplink subframe, the period to be fed back is transmitted through the PUCCH. The CSI transmits the aperiodic CSI to be fed back through the PUSCH, so that the periodic CSI and the aperiodic CSI are implemented in one uplink subframe through the PUCCH and the PUSCH. Time-to-time transmission avoids the discarding of periodic CSI or aperiodic CSI corresponding to part of the downlink carrier, so that the base station side can obtain the channel state information of different downlink carriers in time, thereby improving the accuracy of the system downlink scheduling and improving the service of the system. reliability. DRAWINGS

图 1为现有技术下单频谱***示意图； 1 is a schematic diagram of a single spectrum system in the prior art;

图 2为现有技术下频谱聚合***示意图； 2 is a schematic diagram of a spectrum aggregation system in the prior art;

图 3为现有技术下 UCI信息反馈示意图； 3 is a schematic diagram of UCI information feedback in the prior art;

图 4为本发明实施例中 LTE-A***体系架构图； 4 is a schematic structural diagram of an LTE-A system according to an embodiment of the present invention;

图 5A为本发明实施例中 UE功能结构图； FIG. 5A is a structural diagram of a function of a UE according to an embodiment of the present invention; FIG.

图 5B为本发明实施例中基站功能结构图； 5B is a structural diagram of a function of a base station according to an embodiment of the present invention;

图 6为本发明实施例中 UE反馈 CSI流程图； FIG. 6 is a flowchart of a UE feedback CSI according to an embodiment of the present invention;

图 7为本发明实施例中第一种 PUCCH信道格式示意图； 7 is a schematic diagram of a first PUCCH channel format according to an embodiment of the present invention;

图 8为本发明实施例中第二种 PUCCH信道格式示意图； 8 is a schematic diagram of a second PUCCH channel format according to an embodiment of the present invention;

图 9为本发明实施例中基站接收 CSI流程图；周期 CSI示意图。具体实施方式 FIG. 9 is a flowchart of a CSI received by a base station according to an embodiment of the present invention; and a periodic CSI diagram. detailed description

在 LTE-A***中，为了在物理上行控制信道（PUCCH )和物理上行共享信道（PUSCH )上实现周期 CSI和非周期 CSI的同时反馈，本发明实施例中用户设备 ( UE )确定用于传输 CSI的 PUCCH所在的第一上行载波，和用于传输 CSI 的 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI和非周期 CSI, 接着， UE在第一上行载波内，通过 PUCCH发送待反馈的周期 CSI, 以及在第二上行载波内，通过 PUSCH发送待反馈的非周期 CSI。 In the LTE-A system, in order to implement the simultaneous feedback of the periodic CSI and the aperiodic CSI on the physical uplink control channel (PUCCH) and the physical uplink shared channel (PUSCH), the user equipment (UE) determines the transmission for use in the embodiment of the present invention. The first uplink carrier where the PUCCH of the CSI is located, and the second uplink carrier where the PUSCH for transmitting the CSI is located, and the periodic CSI and the aperiodic CSI that are to be fed back are determined. Then, the UE sends the PUCCH through the PUCCH in the first uplink carrier. The periodic CSI of the feedback, and within the second uplink carrier, the aperiodic CSI to be fed back is transmitted through the PUSCH.

相应地，在基站侧，基站确定用于传输 CSI的 PUCCH所在的第一上行载波，和用于传输 CSI的 PUSCH所在的第二上行载波，以及确定 UE发送的周期 CSI 和非周期 CSI的属性，该属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和 UE发送的周期 CSI和非周期 CSI的反馈比特数，接着，基站在第一上行载波内，基于上述周期 CSI的属性，通过 PUCCH接收 UE发送的周期 CSI, 以及在第二上行载波内，基于上述非周期 CSI的属性，通过 PUSCH接收 UE发送的非周期 CSI。其中，基站在确定周期 CSI和非周期 CSI的属性的过程中，较佳的，根据 CSI反馈模式（包括需要反馈 CSI的下行载波在当前子帧对应的 CSI上报类型），和周期 CSI与非周期 CSI分别对应的下行载波，确定 UE发送的周期 CSI和非周期 CSI的反馈比特数，即将需要在当前子帧中反馈周期 CSI 的每个下行载波的周期 CSI反馈比特数之和，作为 UE发送的周期 CSI的反馈比特数，将需要在当前子帧中反馈非周期 CSI的每个下行载波的非周期 CSI反馈比特数之和，作为 UE发送的非周期 CSI的反馈比特数。 Correspondingly, on the base station side, the base station determines a first uplink carrier where the PUCCH for transmitting the CSI is located, and a second uplink carrier where the PUSCH for transmitting the CSI is located, and determines a periodic CSI sent by the UE. And an aperiodic CSI attribute, where the attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a number of feedback bits of the periodic CSI and the aperiodic CSI sent by the UE, and then, the base station is in the first uplink carrier, based on the foregoing The periodic CSI is used to receive the periodic CSI sent by the UE through the PUCCH, and to receive the aperiodic CSI sent by the UE through the PUSCH based on the attribute of the aperiodic CSI in the second uplink carrier. In the process of determining the attributes of the periodic CSI and the aperiodic CSI, the base station preferably performs the CSI feedback mode (including the CSI reporting type corresponding to the downlink carrier in which the CSI needs to be fed back in the current subframe), and the periodic CSI and the aperiodic period. The downlink carriers corresponding to the CSI respectively determine the number of feedback CSIs and the number of feedback bits of the aperiodic CSI transmitted by the UE, that is, the sum of the number of periodic CSI feedback bits of each downlink carrier that needs to feed back the periodic CSI in the current subframe, which is sent by the UE. The number of feedback bits of the periodic CSI will be the sum of the number of aperiodic CSI feedback bits of each downlink carrier that feeds back the aperiodic CSI in the current subframe as the number of feedback bits of the aperiodic CSI transmitted by the UE.

本发明实施例中，所谓 CSI (包括周期 CSI和非周期 CSI ) , 包含信道质量指示（CQI ) 、预编码矩阵索引（PMI )和秩指示（RI ) 中的任意一个或任意多个组合。 In the embodiment of the present invention, the so-called CSI (including periodic CSI and aperiodic CSI) includes any one or any combination of a channel quality indicator (CQI), a precoding matrix index (PMI), and a rank indicator (RI).

下面结合附图对本发明优选的实施方式进行详细说明。 Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

参阅图 4、图 5A和图 5B所示，本发明实施例中，用于进行 CSI反馈的 LTE-A ***内，包括若干 UE和基站，其中， As shown in FIG. 4, FIG. 5A and FIG. 5B, in the LTE-A system for performing CSI feedback, the UE includes a plurality of UEs and a base station, where

UE包括预处理单元 50和通信单元 51 , 其中， The UE includes a pre-processing unit 50 and a communication unit 51, where

预处理单元 50, 用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI 和非周期 CSI; The pre-processing unit 50 is configured to determine a first uplink carrier where the PUCCH of the CSI is transmitted, and a second uplink carrier where the PUSCH for transmitting the CSI is located, and determine a periodic CSI and an aperiodic CSI to be fed back;

通信单元 51 , 用于在第一上行载波内，通过 PUCCH发送待反馈的周期 CSI, 以及在第二上行载波内，通过 PUSCH发送待反馈的非周期 CSI。 The communication unit 51 is configured to send a periodic CSI to be fed back through the PUCCH in the first uplink carrier, and send the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier.

基站包括预处理单元 52和通信单元 53 , 其中， The base station includes a pre-processing unit 52 and a communication unit 53, wherein

预处理单元 52, 用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定 UE发送的周期 CSI 和非周期 CSI的属性，该属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和 UE发送的周期 CSI和非周期 CSI的反馈比特数。 The pre-processing unit 52 is configured to determine a first uplink carrier where the PUCCH of the CSI is transmitted, and a second uplink carrier where the PUSCH for transmitting the CSI is located, and determine an attribute of the periodic CSI and the aperiodic CSI sent by the UE, where The attribute includes at least a downlink corresponding to the periodic CSI and the aperiodic CSI. Carrier, and the number of feedback bits for periodic CSI and aperiodic CSI transmitted by the UE.

通信单元 53 , 用于在第一上行载波内，基于上述周期 CSI 的属性，通过 PUCCH接收 UE发送的周期 CSI, 以及在第二上行载波内，基于上述非周期 CSI 的属性，通过 PUSCH接收 UE发送的非周期 CSI。 The communication unit 53 is configured to receive the periodic CSI sent by the UE by using the PUCCH in the first uplink carrier, and send the UE by using the PUSCH according to the attribute of the aperiodic CSI in the second uplink carrier. Acyclic CSI.

基于上述***架构，参阅图 6所示，在 LTE-A ***中，当 UE支持在一个上行子帧同时传输 PUCCH和 PUSCH时， UE向基站侧反馈 CSI的详细流程如下： Based on the above system architecture, as shown in FIG. 6, in the LTE-A system, when the UE supports simultaneous transmission of PUCCH and PUSCH in one uplink subframe, the detailed process of the UE feeding back the CSI to the base station side is as follows:

步骤 600: UE确定用于传输 CSI的 PUCCH所在的第一上行载波（以下称为载波 A ), 以及确定用于传输 CSI的 PUSCH所在的第二上行载波（以下称为载波 B )。 Step 600: The UE determines a first uplink carrier (hereinafter referred to as carrier A) where the PUCCH for transmitting CSI is located, and determines a second uplink carrier (hereinafter referred to as carrier B) where the PUSCH for transmitting CSI is located.

实际应用中，在同一上行子帧中，承载用于传输 CSI的 PUCCH的第一上行载波仅有一个，一般为 UE聚合或激活的上行载波中的上行主载波（ Primary Cell Carrier, PCC ), 承载用于传输 CSI的 PUSCH的第二上行载波也仅有一个，可以为 UE 聚合或激活的上行载波中的上行主载波（PCC ) 或一个上行辅载波 ( Subsidiary Cell Carrier, SCO, 因此，需要 UE预先确定，例如可以为触发非周期 CSI传输的上行调度许可（ UL grant )对应的 PUSCH所在的上行载波，较优的，一个子帧中仅存在一个触发非周期 CSI传输的 UL grant。 In an actual application, the first uplink carrier carrying the PUCCH for transmitting CSI is only one in the same uplink subframe, and is generally an uplink primary carrier (PCC) in the uplink carrier that is aggregated or activated by the UE, and is carried. There is only one second uplink carrier for transmitting the CSI of the CSI, which may be an uplink primary carrier (PCC) or an uplink secondary carrier (SCO) in the uplink carrier aggregated or activated by the UE. Therefore, the UE is required to be advanced. For example, the uplink carrier where the PUSCH corresponding to the uplink grant permission (UL grant) that triggers the aperiodic CSI transmission is located, preferably, only one UL grant that triggers the aperiodic CSI transmission exists in one subframe.

步骤 610: UE确定待反馈的周期 CSI和非周期 CSI。 Step 610: The UE determines a periodic CSI to be fed back and an aperiodic CSI.

上述待反馈的周期 CSI为 UE聚合或激活的下行载波中的一个下行载波的周期 CSI, 或者，为 UE 聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; The period CSI to be fed back is the period CSI of one downlink carrier in the downlink carrier that is aggregated or activated by the UE, or is the period CSI of multiple different downlink carriers in the downlink carrier that is aggregated or activated by the UE;

以及，上述待反馈的非周期 CSI为 UE聚合或激活的下行载波中的一个下行载波的非周期 CSI, 或者，为 UE聚合或激活的下行载波中的多个不同的下行载波的非周期 CSI。 And the aperiodic CSI to be fed back is the aperiodic CSI of one downlink carrier in the downlink carrier that is aggregated or activated by the UE, or the aperiodic CSI of the multiple downlink carriers in the downlink carrier that is aggregated or activated by the UE.

实际应用中，在一个上行子帧同时传输的周期 CSI和非周期 CSI为对应于不同的下行载波的 CSI,即同一下行载波在一个上行子帧中只上报一种优先级较高的 CSI, 非周期 CSI的优先级高于周期 CSI。即 UE确定待反馈的周期 CSI和非周期 CSI时，若获知 UE聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI, 则确定对该下行载波只反馈其非周期 CSI。 In a practical application, the periodic CSI and the aperiodic CSI transmitted in one uplink subframe are CSIs corresponding to different downlink carriers, that is, the same downlink carrier reports only one CSI with higher priority in one uplink subframe, The periodic CSI has a higher priority than the periodic CSI. That is, the UE determines the periodic CSI to be fed back and In the case of aperiodic CSI, if it is known that one of the downlink carriers aggregated or activated by the UE has both periodic CSI and aperiodic CSI, it is determined that only the aperiodic CSI is fed back to the downlink carrier.

步骤 620: UE在载波 A内，通过 PUCCH发送待反馈的周期 CSI。 Step 620: The UE sends the periodic CSI to be fed back through the PUCCH in the carrier A.

在执行步骤 620的过程中， UE在载波 A 内，通过 PUCCH发送待反馈的周期 CSI时，釆用的 PUCCH信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种（参阅图 7所示 ), 或者，釆用的 PUCCH信道格式为基于离散傅立叶变换扩展的正交频分复用（ Discrete Fourier Transform- Spread-Orthogonal Frequency Division Multiplexing, DFT-S-OFDM )的信道格式（参阅图 8所示）。 In the process of performing step 620, when the UE sends the periodic CSI to be fed back through the PUCCH in the carrier A, the PUCCH channel format used is any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b (see the figure). 7), or, the PUCCH channel format used is a Discrete Fourier Transform-Distributed Frequency Division Multiplexing (DFT-S-OFDM) channel format (see figure) 8)).

步骤 630: UE在载波 B内，通过 PUSCH发送待反馈的非周期 CSI。 Step 630: The UE sends the aperiodic CSI to be fed back through the PUSCH in the carrier B.

在执行步骤 630的过程中， UE在载波 B内，通过 PUSCH发送待反馈的非周期 CSI时，若在载波 B内，同时通过该 PUSCH进行数据传输，则 UE在执行数据传输时，根据待反馈的非周期 CSI的反馈比特数进行速率匹配。 In the process of performing step 630, when the UE sends the aperiodic CSI to be fed back through the PUSCH in the carrier B, if the data is transmitted through the PUSCH in the carrier B, the UE performs the data transmission according to the feedback. The number of feedback bits of the aperiodic CSI is rate matched.

基于上述实施例，参阅图 9所示，本发明实施例中，基站接收 UE反馈的 CSI的详细流程如下： Based on the foregoing embodiment, referring to FIG. 9, in the embodiment of the present invention, the detailed process of receiving, by the base station, the CSI fed back by the UE is as follows:

步骤 900: 基站确定用于传输 CSI的 PUCCH所在的第一上行载波，即载波 A, 以及确定用于传输 CSI的 PUSCH所在的第二上行载波，即载波 B。 Step 900: The base station determines a first uplink carrier where the PUCCH for transmitting the CSI is located, that is, the carrier A, and determines a second uplink carrier where the PUSCH for transmitting the CSI is located, that is, the carrier B.

与步骤 600同理，实际应用中，在同一上行子帧中，承载用于传输 CSI的 PUCCH的上行载波仅有一个，一般为 UE聚合或激活的上行载波中的上行主载波（PCC ), 承载用于传输 CSI的 PUSCH的上行载波也仅有一个，可以为 UE 聚合或激活的上行载波中的上行主载波（PCC )或一个上行辅载波（SCC ), 因此，需要基站预先确定，例如可以为触发非周期 CSI传输的上行调度许可（UL grant )对应的 PUSCH所在的上行载波，较优的，一个子帧中仅存在一个触发非周期 CSI传输的 UL grant。 In the same manner as the step 600, in the same uplink subframe, there is only one uplink carrier carrying the PUCCH for transmitting CSI, which is generally the uplink primary carrier (PCC) in the uplink carrier aggregated or activated by the UE, and bears There is only one uplink carrier for transmitting the CSI of the CSI, which may be an uplink primary carrier (PCC) or an uplink secondary carrier (SCC) in the uplink carrier that is aggregated or activated by the UE. Therefore, the base station needs to be predetermined, for example, The uplink carrier where the PUSCH corresponding to the uplink scheduling grant (UL grant) of the aperiodic CSI transmission is triggered is preferred. Only one UL grant that triggers the aperiodic CSI transmission exists in one subframe.

步骤 910: 基站确定 UE发送的周期 CSI和非周期 CSI的属性，该属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和 UE发送的周期 CSI和非周期 CSI的反馈比特数。与步骤 610同理，上述待反馈的周期 CSI为 UE聚合或激活的下行载波中的一个下行载波的周期 CSI, 或者，为 UE聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; Step 910: The base station determines an attribute of a periodic CSI and an aperiodic CSI sent by the UE, where the attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a number of feedback bits of the periodic CSI and the aperiodic CSI sent by the UE. In the same manner as the step 610, the periodic CSI to be fed back is the periodic CSI of one downlink carrier in the downlink carrier that is aggregated or activated by the UE, or the periodic CSI of multiple different downlink carriers in the downlink carrier that is aggregated or activated by the UE. ;

实际应用中，在一个上行子帧同时传输的周期 CSI和非周期 CSI为对应于不同的下行载波的 CSI,即同一下行载波在一个上行子帧中只上报一种优先级较高的 CSI, 非周期 CSI的优先级高于周期 CSI。即基站确定 UE侧待反馈的周期 CSI和非周期 CSI时，若获知 UE聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI,则确定 UE反馈的该下行载波的 CSI为非周期 CSI。 In a practical application, the periodic CSI and the aperiodic CSI transmitted in one uplink subframe are CSIs corresponding to different downlink carriers, that is, the same downlink carrier reports only one CSI with higher priority in one uplink subframe, The periodic CSI has a higher priority than the periodic CSI. When the base station determines the periodic CSI and the aperiodic CSI to be fed back by the UE, if it is known that one of the downlink carriers that are aggregated or activated by the UE has both periodic CSI and aperiodic CSI, the CSI of the downlink carrier fed back by the UE is determined to be Aperiodic CSI.

步骤 920: 基站在载波 A内，基于上述周期 CSI的属性，通过 PUCCH接收 UE发送的周期 CSI。 Step 920: The base station receives, in the carrier A, the periodic CSI sent by the UE through the PUCCH based on the attribute of the periodic CSI.

在执行步骤 920的过程中，基站在载波 A内，通过 PUCCH接收 UE发送的周期 CSI时，釆用的 PUCCH信道格式为 PUCCH format 2、 PUCCH format 2a 和 PUCCH format 2b中的任意一种（参阅图 7所示 ), 或者，釆用的 PUCCH信道格式为基于 DFT-S-OFDM的信道格式（参阅图 8所示）。 In the process of performing step 920, when the base station receives the periodic CSI transmitted by the UE through the PUCCH in the carrier A, the used PUCCH channel format is any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b (refer to the figure). 7), or, the PUCCH channel format used is a DFT-S-OFDM based channel format (see FIG. 8).

步骤 930: 基站在载波 B内，基于上述周期 CSI的属性，通过 PUSCH接收 UE发送的非周期 CSI。 Step 930: The base station receives, in the carrier B, the aperiodic CSI sent by the UE through the PUSCH based on the attribute of the periodic CSI.

在执行步骤 930的过程中，基站在载波 B内，通过 PUSCH接收 UE发送的非周期 CSI时，若在载波 B内，同时通过该 PUSCH与 UE进行数据传输，则基站在执行数据接收时，根据上述确定的 UE发送的非周期 CSI的反馈比特数进行解速率匹配。 In the process of performing step 930, when the base station receives the aperiodic CSI sent by the UE through the PUSCH in the carrier B, if the data is transmitted through the PUSCH and the UE in the carrier B, the base station performs data reception according to the base station. The number of feedback bits of the aperiodic CSI sent by the UE determined above is de-rate matched.

基于上述两个实施例，下面参照具体的实施方式进行详细介绍。 Based on the above two embodiments, a detailed description will be made below with reference to specific embodiments.

在第一种情况下，参阅图 10所示， LTE-A ***中， UE支持在一个上行子帧同时传输 PUCCH和 PUSCH, UE使用 2个激活的下行载波，编号分别为下行载波 1 ( DL CC1 )和下行载波 2 ( DL CC2 ), 其中， CSI包括：对应于 DL CC1 的周期 CSI和对应于 DLCC2的非周期 CSI。 In the first case, as shown in FIG. 10, in the LTE-A system, the UE supports simultaneous transmission of PUCCH and PUSCH in one uplink subframe, and the UE uses two activated downlink carriers, respectively numbered as downlink carrier 1 (DL CC1). And downlink carrier 2 (DL CC2 ), where CSI includes: corresponding to DL CC1 The periodic CSI and the aperiodic CSI corresponding to DLCC2.

那么， UE反馈 CSI的方法如下： Then, the method for the UE to feed back CSI is as follows:

UE首先确定传输 CSI的 PUCCH所在的上行载波为上行主载波 UL CC1, 传输 CSI的 PUSCH所在的上行载波也为上行主载波 UL CC1, 然后， UE确定待反馈的 CSI为 DLCC1的周期 CSI和 DLCC2的非周期 CSI, 最后， UE在 UL CC1上的 PUCCH发送对应于 DL CC1的周期 CSI, 釆用如图 7或图 8所示的 PUCCH信道格式，在 UL CC1上的 PUSCH发送对应于 DL CC2的非周期 CSI, 该 PUSCH上的数据传输根据非周期 CSI的反馈比特数进行速率匹配。 The UE first determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier UL CC1, and the uplink carrier where the PUSCH transmitting the CSI is also the uplink primary carrier UL CC1, and then the UE determines that the CSI to be fed back is the periodic CSI and DLCC2 of the DLCC1. Aperiodic CSI, Finally, the PUCCH of the UE on the UL CC1 transmits a periodic CSI corresponding to the DL CC1, using the PUCCH channel format as shown in FIG. 7 or FIG. 8, and the PUSCH transmission on the UL CC1 corresponds to the non-DL CC2. The periodic CSI, the data transmission on the PUSCH is rate matched according to the number of feedback bits of the aperiodic CSI.

相应地，基站接收 UE反馈的 CSI的方法如下： Correspondingly, the method for the base station to receive the CSI fed back by the UE is as follows:

基站确定传输 CSI的 PUCCH所在的上行载波为上行主载波 ULCC1, 传输 CSI的 PUSCH所在的上行载波也为上行主载波 UL CC1, 然后，基站根据 UE 的调度情况和配置，确定 UE存在对应于 DL CC1的周期 CSI反馈以及对应于 DL CC2的非周期 CSI反馈，并根据 DL CC1上的周期 CSI反馈模式确定 UE发送的周期 CSI的反馈比特数，根据 DL CC2上的非周期 CSI反馈模式确定 UE发送的非周期 CSI的反馈比特数，最后，基站在 UL CC1上的 PUCCH根据周期 CSI的反馈比特数接收 UE发送的对应于 DL CC1的周期 CSI, 釆用如图 7或图 8所示的 PUCCH信道格式，在 UL CC1上的 PUSCH根据非周期 CSI的反馈比特数，进行解速率匹配，获得 UE发送的数据以及对应于 DLCC2的非周期 CSI。 The base station determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier ULCC1, and the uplink carrier where the PUSCH transmitting the CSI is also the uplink primary carrier UL CC1. Then, the base station determines, according to the scheduling and configuration of the UE, that the UE exists corresponding to the DL CC1. The periodic CSI feedback and the aperiodic CSI feedback corresponding to the DL CC2, and determine the number of feedback bits of the periodic CSI sent by the UE according to the periodic CSI feedback mode on the DL CC1, and determine the UE to send according to the aperiodic CSI feedback mode on the DL CC2. The number of feedback bits of the aperiodic CSI. Finally, the PUCCH of the base station on the UL CC1 receives the periodic CSI corresponding to the DL CC1 transmitted by the UE according to the number of feedback bits of the periodic CSI, and uses the PUCCH channel format as shown in FIG. 7 or FIG. The PUSCH on the UL CC1 performs de-rate matching according to the number of feedback bits of the aperiodic CSI, and obtains data transmitted by the UE and aperiodic CSI corresponding to the DLCC2.

在第二种情况下，参阅图 11所示， LTE-A***中， UE支持在一个上行子帧同时传输 PUCCH和 PUSCH, UE使用 4个激活的下行载波，编号分别为下行载波 1 (DLCC1)、下行载波 2 (DLCC2)、下行载波 3 (DLCC3)和下行载波 4 (DLCC4), 其中，待反馈的 CSI包括：对应于 DLCC1、 DLCC2的周期 CSI, 对应于 DLCC3、 DLCC4的非周期 CSI。 In the second case, as shown in FIG. 11, in the LTE-A system, the UE supports simultaneous transmission of PUCCH and PUSCH in one uplink subframe, and the UE uses four activated downlink carriers, respectively numbered as downlink carrier 1 (DLCC1). Downlink carrier 2 (DLCC2), downlink carrier 3 (DLCC3), and downlink carrier 4 (DLCC4), where the CSI to be fed back includes: a periodic CSI corresponding to DLCC1, DLCC2, and an aperiodic CSI corresponding to DLCC3, DLCC4.

UE首先确定传输 CSI的 PUCCH所在上行载波为上行主载波 UL CC1, 传输 CSI的 PUSCH所在的上行载波为 ULCC2, 然后， UE确定待反馈的 CSI为 DL CC1和 DL CC2的周期 CSI以及 DL CC3和 DL CC4的非周期 CSI, 最后， UE在 UL CC1上的 PUCCH发送对应于 DL CC1和 DL CC2的周期 CSI,釆用如图 7或图 8所示的 PUCCH信道格式，在 UL CC2上的 PUSCH发送对应于 DL CC3 和 DL CC4的非周期 CSI, 该 PUSCH上的数据传输根据非周期 CSI的总反馈比特数进行速率匹配。 The UE first determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier UL CC1, and the uplink carrier where the PUSCH transmitting the CSI is located is the ULCC2, and then the UE determines that the CSI to be fed back is the periodic CSI of the DL CC1 and the DL CC2, and the DL CC3 and the DL. CC4's aperiodic CSI, and finally, The UE transmits the periodic CSI corresponding to the DL CC1 and the DL CC2 on the PUCCH on the UL CC1, and uses the PUCCH channel format as shown in FIG. 7 or FIG. 8 to transmit the PUSCH on the UL CC2 corresponding to the DL CC3 and the DL CC4. The periodic CSI, the data transmission on the PUSCH is rate matched according to the total number of feedback bits of the aperiodic CSI.

基站首先确定传输 CSI的 PUCCH所在上行载波为上行主载波 UL CC1 , 传输 CSI的 PUSCH所在的上行载波为 UL CC 2, 然后基站根据 UE的调度情况和配置，确定 UE存在对应于 DL CC1和 DL CC2的周期 CSI反馈以及对应于 DL CC3和 DL CC4的非周期 CSI反馈，并根据 DL CC1和 DL CC2上的周期 CSI 反馈模式确定 UE发送的周期 CSI的总反馈比特数，根据 DL CC3和 DL CC4上的非周期 CSI反馈模式确定 UE发送的非周期 CSI的总反馈比特数，最后，基站在 UL CC1上的 PUCCH根据周期 CSI的总反馈比特数接收 UE发送的对应于 DL CC1和 DL CC2的周期 CSI, 釆用如图 7或图 8所示的 PUCCH信道格式，在 UL CC2上的 PUSCH根据非周期 CSI的总反馈比特数，进行解速率匹配，获得 UE发送的数据以及对应于 DL CC3和 DL CC4的非周期 CSI。 The base station first determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier UL CC1, and the uplink carrier where the PUSCH transmitting the CSI is located is the UL CC 2, and then the base station determines, according to the scheduling situation and configuration of the UE, that the UE exists corresponding to the DL CC1 and the DL CC2. Periodic CSI feedback and aperiodic CSI feedback corresponding to DL CC3 and DL CC4, and determining the total number of feedback bits of the periodic CSI transmitted by the UE according to the periodic CSI feedback mode on DL CC1 and DL CC2, according to DL CC3 and DL CC4 The aperiodic CSI feedback mode determines the total number of feedback bits of the aperiodic CSI sent by the UE. Finally, the PUCCH of the base station on the UL CC1 receives the periodic CSI corresponding to the DL CC1 and the DL CC2 sent by the UE according to the total number of feedback bits of the periodic CSI. Using the PUCCH channel format as shown in FIG. 7 or FIG. 8, the PUSCH on the UL CC2 performs de-rate matching according to the total number of feedback bits of the aperiodic CSI, and obtains data transmitted by the UE and corresponding to the DL CC3 and the DL CC4. Acyclic CSI.

在第三种情况下，参阅图 12所示，在 LTE-A***中， UE支持在一个上行子帧同时传输 PUCCH和 PUSCH, UE存在 4个激活的下行载波，编号分别为下行载波 1 ( DL CC1 )、下行载波 2 ( DL CC2 )、下行载波 3 ( DL CC3 )和下行载波 4 ( DL CC4 ), 其中，待反馈的 CSI包括：对应于 DL CC1的周期 CSI, 对应于 DL CC2的周期 CSI和非周期 CSI, 对应于 DL CC3、 DL CC4反馈的非周期 CSI。 In the third case, as shown in FIG. 12, in the LTE-A system, the UE supports simultaneous transmission of PUCCH and PUSCH in one uplink subframe, and the UE has 4 activated downlink carriers, respectively numbered as downlink carrier 1 (DL) CC1), downlink carrier 2 (DL CC2), downlink carrier 3 (DL CC3), and downlink carrier 4 (DL CC4), where the CSI to be fed back includes: a periodic CSI corresponding to DL CC1, corresponding to a periodic CSI of DL CC2 And aperiodic CSI, corresponding to the aperiodic CSI of DL CC3, DL CC4 feedback.

UE首先确定传输 CSI的 PUCCH所在上行载波为上行主载波 UL CC1 , 传输 CSI的 PUSCH所在的上行载波为 UL CC3 , 由于针对 DL CC2同时存在待反馈的周期 CSI和非周期 CSI,而非周期 CSI的优选级高于周期 CSI,则对 DL CC2, UE只反馈其非周期 CSI, 因此， UE确定待反馈的 CSI为 DL CC1的周期 CSI 以及 DL CC2、 DL CC3和 DL CC4的非周期 CSI ,最后， UE在 UL CC 1上的 PUCCH 发送对应于 DL CC1的周期 CSI, 釆用如图 7或图 8所示的 PUCCH信道结构；在 UL CC3上的 PUSCH发送对应于 DL CC2.DL CC3和 DL CC4的非周期 CSI, 该 PUSCH上的数据传输根据非周期 CSI的总反馈比特数进行速率匹配； UL CC2 上的 PUSCH只传输数据。 The UE first determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier UL CC1, and the uplink carrier where the PUSCH transmitting the CSI is located is the UL CC3, because there are both periodic CSI and aperiodic CSI to be fed back for the DL CC2, instead of the periodic CSI If the preference is higher than the periodic CSI, the UE only feeds back its aperiodic CSI for the DL CC2. Therefore, the UE determines that the CSI to be fed back is the periodic CSI of the DL CC1 and the aperiodic CSI of the DL CC2, the DL CC3, and the DL CC4. Finally, UE PUCCH on UL CC 1 Transmitting periodic CSI corresponding to DL CC1, using PUCCH channel structure as shown in FIG. 7 or FIG. 8; PUSCH on UL CC3 transmitting aperiodic CSI corresponding to DL CC2.DL CC3 and DL CC4, on the PUSCH The data transmission is rate matched according to the total number of feedback bits of the aperiodic CSI; the PUSCH on the UL CC2 only transmits data.

基站首先确定传输 CSI的 PUCCH所在上行载波为上行主载波 UL CC1 , 传输 CSI的 PUSCH所在的上行载波为 UL CC3 , 由于针对 DL CC2同时存在待反馈的周期 CSI和非周期 CSI, 而非周期 CSI的优选级高于周期 CSI, 则基站确定 UE对 DL CC2只反馈其非周期 CSI, 因此，基站根据 UE的调度情况和配置，确定 UE存在对应于 DL CC1的周期 CSI反馈以及对应于 DL CC2、 DL CC3和 DL CC4的非周期 CSI反馈，并根据 DL CC1上的周期 CSI反馈模式确定 UE发送的周期 CSI的反馈比特数，根据 DL CC2、 DL CC3和 DL CC4上的非周期 CSI 反馈模式确定 UE发送的非周期 CSI的总反馈比特数，最后，基站在 UL CC1上的 PUCCH, 根据周期 CSI的反馈比特数接收 UE发送的对应于 DL CC1的周期 CSI, 釆用如图 7或图 8所示的 PUCCH信道结构；在 UL CC3上的 PUSCH, 根据非周期 CSI的总反馈比特数，进行解速率匹配，获得 UE发送的数据以及对应于 DL CC2、 DL CC3和 DL CC4的非周期 CSI; 在 UL CC2上的 PUSCH只接收数据。 The base station first determines that the uplink carrier where the PUCCH transmitting the CSI is located is the uplink primary carrier UL CC1, and the uplink carrier where the PUSCH transmitting the CSI is located is the UL CC3, because there are both periodic CSI and aperiodic CSI to be fed back for the DL CC2, instead of the periodic CSI If the preference is higher than the periodic CSI, the base station determines that the UE only feeds back its aperiodic CSI to the DL CC2. Therefore, the base station determines, according to the scheduling and configuration of the UE, that the UE has periodic CSI feedback corresponding to the DL CC1 and corresponds to the DL CC2 and the DL. Aperiodic CSI feedback of CC3 and DL CC4, and determining the number of feedback bits of the periodic CSI transmitted by the UE according to the periodic CSI feedback mode on the DL CC1, and determining the UE transmission according to the aperiodic CSI feedback mode on the DL CC2, the DL CC3, and the DL CC4 The total number of feedback bits of the aperiodic CSI, and finally, the PUCCH of the base station on the UL CC1 receives the periodic CSI corresponding to the DL CC1 sent by the UE according to the number of feedback bits of the periodic CSI, as shown in FIG. 7 or FIG. PUCCH channel structure; the PUSCH on the UL CC3 performs de-rate matching according to the total number of feedback bits of the aperiodic CSI, and obtains data and corresponding data sent by the UE. Aperiodic CSI for DL CC2, DL CC3, and DL CC4; PUSCH on UL CC2 only receives data.

综上所述，本发明实施例中，针对 LTE-A***，制定了 CSI的反馈机制，即当在一个上行子帧中同时存在对应多个下行载波的周期 CSI和非周期 CSI时，通过 PUCCH传输待反馈的周期 CSI, 通过 PUSCH传输待反馈的非周期 CSI, 这样，便通过 PUCCH和 PUSCH实现了周期 CSI和非周期 CSI在一个上行子帧内的同时传输，避免了对应于部分下行载波的周期 CSI或非周期 CSI的丟弃，令基站侧可以及时获得不同下行载波的信道状态信息，从而提高了***下行调度的准确性，提升了***的服务可靠性。 In summary, in the embodiment of the present invention, a feedback mechanism of the CSI is established for the LTE-A system, that is, when there are periodic CSI and aperiodic CSI corresponding to multiple downlink carriers in one uplink subframe, the PUCCH is adopted. The periodic CSI to be fed back is transmitted, and the aperiodic CSI to be fed back is transmitted through the PUSCH. Thus, the periodic CSI and the aperiodic CSI are simultaneously transmitted in one uplink subframe through the PUCCH and the PUSCH, and the corresponding downlink carrier is avoided. The discarding of the periodic CSI or the aperiodic CSI enables the base station side to obtain the channel state information of different downlink carriers in time, thereby improving the accuracy of the downlink scheduling of the system and improving the service reliability of the system.

本领域内的技术人员应明白，本发明的实施例可提供为方法、 ***、或计算机程序产品。因此，本发明可釆用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘存储器、Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Thus, the present invention can be implemented in an entirely hardware embodiment, an entirely software embodiment, or a In the form of an embodiment of the software and hardware aspects. Moreover, the present invention is applicable to one or more computer usable storage media (including but not limited to disk storage, including computer usable program code,

CD-ROM, 光学存储器等）上实施的计算机程序产品的形式。 The form of a computer program product implemented on a CD-ROM, optical storage, etc.).

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

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

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。 These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram. Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in Therefore, the appended claims are intended to cover all modifications and alternatives The spirit and scope of the Ming. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

权利要求 Rights request

1、一种信道状态信息 CSI的反馈方法，其特征在于，包括： A channel state information CSI feedback method, which is characterized in that:

用户设备 UE确定用于传输 CSI的物理上行控制信道 PUCCH所在的第一上行载波，和用于传输 CSI的物理上行共享信道 PUSCH所在的第二上行载波；所述 UE确定待反馈的周期 CSI和非周期 CSI; The user equipment UE determines a first uplink carrier where the physical uplink control channel PUCCH for transmitting CSI is located, and a second uplink carrier where the physical uplink shared channel PUSCH for transmitting CSI is located; the UE determines a periodic CSI and a non-feedback Cycle CSI;

CSI。 CSI.

2、如权利要求 1 所述的方法，其特征在于，所述 CSI 包括信道质量指示 CQL 预编码矩阵索引 PMI和秩指示 RI中的任意一个或任意多个组合。 2. The method according to claim 1, wherein the CSI comprises any one or any combination of a channel quality indicator CQL precoding matrix index PMI and a rank indication RI.

3、如权利要求 1所述的方法，其特征在于，所述第一上行载波为所述 UE 聚合或激活的多个上行载波中的上行主载波 PCC; 所述第二上行载波，为所述 UE聚合或激活的多个上行载波中的上行主载波 PCC或一个上行辅载波 SCC。 The method according to claim 1, wherein the first uplink carrier is an uplink primary carrier PCC of the plurality of uplink carriers aggregated or activated by the UE; the second uplink carrier is the The uplink primary carrier PCC or one uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE.

4、如权利要求 1所述的方法，其特征在于，所述 UE确定的所述待反馈的周期 CSI为所述 UE聚合或激活的下行载波中的一个下行载波的周期 CSI ,或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; The method according to claim 1, wherein the periodic CSI to be fed back determined by the UE is a period CSI of one downlink carrier in a downlink carrier that is aggregated or activated by the UE, or a periodic CSI of a plurality of different downlink carriers in a downlink carrier that is aggregated or activated by the UE;

以及，所述 UE确定的所述待反馈的非周期 CSI为所述 UE聚合或激活的下行载波中的一个下行载波的非周期 CSI, 或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的非周期 CSI。 And the aperiodic CSI to be fed back, which is determined by the UE, is an aperiodic CSI of one downlink carrier that is aggregated or activated by the UE, or is a plurality of downlink carriers that are aggregated or activated by the UE. Aperiodic CSI of different downlink carriers.

5、如权利要求 4所述的方法，其特征在于，所述 UE确定待反馈的周期 CSI 和非周期 CSI时，若获知所述 UE聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI,则所述 UE确定对该下行载波只反馈其非周期 CSI。 The method according to claim 4, wherein when the UE determines the periodic CSI and the aperiodic CSI to be fed back, if a downlink carrier in the downlink carrier aggregated or activated by the UE is known to have a periodic CSI And aperiodic CSI, the UE determines to feed back only its aperiodic CSI for the downlink carrier.

6、如权利要求 1 - 5任一项所述的方法，其特征在于，所述 UE在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI时，釆用的 PUCCH信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种，或者，釆用的 PUCCH信道格式为基于离散傅立叶变换扩展的正交频分复用 DFT-S-OFDM的信道格式。 The method according to any one of claims 1 to 5, wherein the UE uses the PUCCH channel format when the periodic CSI to be fed back is sent by using the PUCCH in the first uplink carrier. For any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b, or the PUCCH channel format used is orthogonal frequency division multiplexing based on discrete Fourier transform extension. Channel format of DFT-S-OFDM.

7、如权利要求 1 - 5任一项所述的方法，其特征在于，所述 UE在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI时，若在所述第二上行载波内，同时通过所述 PUSCH进行数据传输，则所述 UE在执行数据传输时，根据所述待反馈的非周期 CSI的反馈比特数进行速率匹配。 The method according to any one of claims 1 to 5, wherein, when the UE sends the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier, if the During the second uplink carrier, the data is transmitted through the PUSCH, and the UE performs rate matching according to the number of feedback bits of the aperiodic CSI to be fed back when performing data transmission.

8、一种信道状态信息 CSI的接收方法，其特征在于，包括： 8. A method for receiving channel state information CSI, comprising:

基站确定用于传输 CSI的物理上行控制信道 PUCCH所在的第一上行载波，和用于传输 CSI的物理上行共享信道 PUSCH所在的第二上行载波； Determining, by the base station, a first uplink carrier where the physical uplink control channel PUCCH for transmitting the CSI is located, and a second uplink carrier where the physical uplink shared channel PUSCH for transmitting the CSI is located;

所述基站确定用户设备 UE发送的周期 CSI和非周期 CSI的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数； Determining, by the base station, an attribute of a periodic CSI and an aperiodic CSI sent by the user equipment, where the attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a feedback bit of the periodic CSI and the aperiodic CSI sent by the UE. Number

9、如权利要求 8 所述的方法，其特征在于，所述 CSI 包括信道质量指示 CQL 预编码矩阵索引 PMI和秩指示 RI中的任意一个或任意多个组合。 9. The method according to claim 8, wherein the CSI comprises any one or any combination of a channel quality indicator CQL precoding matrix index PMI and a rank indicator RI.

10、如权利要求 8所述的方法，其特征在于，所述第一上行载波为所述 UE 聚合或激活的多个上行载波中的上行主载波 PCC; 所述第二上行载波，为所述 UE聚合或激活的多个上行载波中的上行主载波 PCC或一个上行辅载波 SCC。 The method according to claim 8, wherein the first uplink carrier is an uplink primary carrier PCC of the plurality of uplink carriers aggregated or activated by the UE; the second uplink carrier is the The uplink primary carrier PCC or one uplink secondary carrier SCC of the plurality of uplink carriers aggregated or activated by the UE.

11、如权利要求 8所述的方法，其特征在于，所述基站确定所述 UE发送的周期 CSI和非周期 CSI的属性，进一步包括： The method according to claim 8, wherein the determining, by the base station, the attributes of the periodic CSI and the aperiodic CSI sent by the UE, further comprising:

所述基站确定的所述 UE发送的周期 CSI为所述 UE聚合或激活的下行载波中的一个下行载波的周期 CSI, 或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; The periodic CSI sent by the UE determined by the base station is the periodic CSI of one downlink carrier in the downlink carrier that is aggregated or activated by the UE, or is a different downlink in the downlink carrier that is aggregated or activated by the UE. Carrier cycle CSI;

以及，所述基站确定的所述 UE发送的非周期 CSI为所述 UE聚合或激活的下行载波中的一个下行载波的非周期 CSI, 或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的非周期 CSI。 And the aperiodic CSI sent by the UE determined by the base station is an aperiodic CSI of one downlink carrier of the downlink carrier that is aggregated or activated by the UE, or is a downlink that is aggregated or activated by the UE. Aperiodic CSI of a plurality of different downlink carriers in a carrier.

12、如权利要求 11所述的方法，其特征在于，所述基站确定所述 UE发送的周期 CSI和非周期 CSI的属性时，若获知所述 UE聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI,则所述基站确定所述 UE反馈的该下行载波的 CSI为非周期 CSI。 The method according to claim 11, wherein, when the base station determines the attributes of the periodic CSI and the aperiodic CSI sent by the UE, if the downlink carrier of the downlink carrier that is aggregated or activated by the UE is learned, The base station determines that the CSI of the downlink carrier fed back by the UE is a non-periodic CSI.

13、如权利要求 8 - 12任一项所述的方法，其特征在于，所述基站在所述第一上行载波内，通过 PUCCH接收所述 UE发送的周期 CSI时，釆用的 PUCCH 信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种，或者，釆用的 PUCCH信道格式为基于离散傅立叶变换扩展的正交频分复用 DFT-S-OFDM的信道格式。 The method according to any one of claims 8 to 12, wherein the base station uses the PUCCH channel format when receiving periodic CSI sent by the UE through the PUCCH in the first uplink carrier. For any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b, or the PUCCH channel format used is a channel format of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

14、如权利要求 8 - 12任一项所述的方法，其特征在于，所述基站在所述第二上行载波内，通过 PUSCH接收所述 UE发送的非周期 CSI时，若在所述第二上行载波内，同时通过所述 PUSCH与 UE进行数据传输，则所述基站在执行数据接收时，根据所述 UE发送的非周期 CSI的反馈比特数进行解速率匹配。 The method according to any one of claims 8 to 12, wherein, when the base station receives the aperiodic CSI sent by the UE by using the PUSCH in the second uplink carrier, if the The data transmission is performed by the UE and the UE through the PUSCH, and the base station performs de-rate matching according to the number of feedback bits of the aperiodic CSI sent by the UE when performing data reception.

15、一种信道状态信息 CSI的反馈装置，其特征在于，包括： A channel state information feedback device of the CSI, comprising:

预处理单元，用于确定用以传输 CSI的物理上行控制信道 PUCCH所在的第一上行载波，和用以传输 CSI的物理上行共享信道 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI和非周期 CSI; a pre-processing unit, configured to determine a first uplink carrier where a physical uplink control channel PUCCH for transmitting CSI is located, and a second uplink carrier where a physical uplink shared channel PUSCH for transmitting CSI is located, and determine a periodic CSI and a to-be-feedback Aperiodic CSI;

通信单元，用于在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI, 以及在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI。 And a communication unit, configured to send the period CSI to be fed back through the PUCCH in the first uplink carrier, and send the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier.

16、如权利要求 15所述的装置，其特征在于，所述预处理单元确定的 CSI 包括信道质量指示 CQI、预编码矩阵索引 PMI和秩指示 RI中的任意一个或任意多个组合。 The apparatus according to claim 15, wherein the CSI determined by the pre-processing unit comprises any one or any combination of a channel quality indicator CQI, a precoding matrix index PMI, and a rank indicator RI.

17、如权利要求 15所述的装置，其特征在于，所述预处理单元确定的第一上行载波为本装置聚合或激活的多个上行载波中的上行主载波 PCC; 所述预处理单元确定的第二上行载波，为本装置聚合或激活的多个上行载波中的上行主载波 PCC或一个上行辅载波 scc。 The apparatus according to claim 15, wherein the first uplink carrier determined by the pre-processing unit is an uplink primary carrier PCC of a plurality of uplink carriers aggregated or activated by the device; the pre-processing unit determines The second uplink carrier, which is an uplink master among multiple uplink carriers that are aggregated or activated by the device Carrier PCC or an uplink secondary carrier scc.

18、如权利要求 15所述的装置，其特征在于，所述预处理单元确定的所述待反馈的周期 CSI 为本装置聚合或激活的下行载波中的一个下行载波的周期 CSI, 或者，为本装置聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; The device according to claim 15, wherein the periodic CSI to be fed back determined by the pre-processing unit is a periodic CSI of one downlink carrier in a downlink carrier that is aggregated or activated by the device, or a periodic CSI of a plurality of different downlink carriers in a downlink carrier aggregated or activated by the device;

以及，所述预处理单元确定的所述待反馈的非周期 CSI为本装置聚合或激活的下行载波中的一个下行载波的非周期 CSI, 或者，为本装置聚合或激活的下行载波中的多个不同的下行载波的非周期 CSI。 And the aperiodic CSI to be fed back determined by the pre-processing unit is the aperiodic CSI of one downlink carrier in the downlink carrier that is aggregated or activated by the device, or is the number of downlink carriers that are aggregated or activated by the device. Aperiodic CSI of different downlink carriers.

19、如权利要求 18所述的装置，其特征在于，所述预处理单元确定待反馈的周期 CSI和非周期 CSI时，若获知本装置聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI, 则确定对该下行载波只反馈其非周期 CSI。 The apparatus according to claim 18, wherein, when the pre-processing unit determines the periodic CSI and the aperiodic CSI to be fed back, if it is known that one downlink carrier in the downlink carrier aggregated or activated by the device has a period The CSI and the aperiodic CSI determine that only the aperiodic CSI is fed back to the downlink carrier.

20、如权利要求 15 - 19任一项所述的装置，其特征在于，所述通信单元在所述第一上行载波内，通过 PUCCH发送所述待反馈的周期 CSI 时，釆用的 PUCCH信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种，或者，釆用的 PUCCH信道格式为基于离散傅立叶变换扩展的正交频分复用 DFT-S-OFDM的信道格式。 The device according to any one of claims 15 to 19, wherein the communication unit uses the PUCCH channel when the periodic CSI to be fed back is sent through the PUCCH in the first uplink carrier. The format is any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b, or the PUCCH channel format used is a channel format of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

21、如权利要求 15 - 19任一项所述的装置，其特征在于，所述通信单元在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI时，若在所述第二上行载波内，同时通过所述 PUSCH进行数据传输，则所述通信单元在执行数据传输时，根据所述待反馈的非周期 CSI的反馈比特数进行速率匹配。 The apparatus according to any one of claims 15 to 19, wherein, when the communication unit transmits the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier, During the second uplink carrier, data transmission is performed through the PUSCH, and the communication unit performs rate matching according to the number of feedback bits of the aperiodic CSI to be fed back when performing data transmission.

22、一种信道状态信息 CSI的接收装置，其特征在于，包括： 22. A channel state information receiving device of a CSI, comprising:

预处理单元，用于确定用以传输 CSI的物理上行控制信道 PUCCH所在的第一上行载波，和用以传输 CSI的物理上行共享信道 PUSCH所在的第二上行载波，以及确定用户设备 UE发送的周期 CSI和非周期 CSI的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数；通信单元，用于在所述第一上行载波内，基于所述周期 CSI的属性，通过 PUCCH接收所述 UE发送的周期 CSI, 以及用于在所述第二上行载波内，基于所述非周期 CSI的属性，通过 PUSCH接收所述 UE发送的非周期 CSI。 a pre-processing unit, configured to determine a first uplink carrier where a physical uplink control channel (PUCCH) for transmitting CSI is located, and a second uplink carrier where a physical uplink shared channel (PUSCH) for transmitting CSI is located, and determine a period of transmission by the user equipment UE An attribute of the CSI and the aperiodic CSI, where the attribute includes at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a feedback bit number of the periodic CSI and the aperiodic CSI sent by the UE; a communication unit, configured to receive, according to an attribute of the periodic CSI, a periodic CSI sent by the UE by using a PUCCH in the first uplink carrier, and configured to be based on the aperiodic in the second uplink carrier The attribute of the CSI receives the aperiodic CSI sent by the UE through the PUSCH.

23、如权利要求 22所述的装置，其特征在于，所述预处理单元确定的 CSI 包括信道质量指示 CQI、预编码矩阵索引 PMI和秩指示 RI中的任意一个或任意多个组合。 The apparatus according to claim 22, wherein the CSI determined by the pre-processing unit comprises any one or any combination of a channel quality indicator CQI, a precoding matrix index PMI, and a rank indicator RI.

24、如权利要求 22所述的装置，其特征在于，所述预处理单元确定的第一上行载波为所述 UE聚合或激活的多个上行载波中的上行主载波 PCC; 所述预处理单元确定的第二上行载波，为所述 UE 聚合或激活的多个上行载波中的上行主载波 PCC或一个上行辅载波 SCC。 The device according to claim 22, wherein the first uplink carrier determined by the pre-processing unit is an uplink primary carrier PCC of a plurality of uplink carriers aggregated or activated by the UE; The determined second uplink carrier is an uplink primary carrier PCC or an uplink secondary carrier SCC of the multiple uplink carriers that are aggregated or activated by the UE.

25、如权利要求 22 所述的装置，其特征在于，所述预处理单元确定所述 UE发送的周期 CSI所和非周期 CSI的属性，进一步包括：载波中的一个下行载波的周期 CSI, 或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的周期 CSI; The apparatus according to claim 22, wherein the pre-processing unit determines an attribute of a periodic CSI and an aperiodic CSI sent by the UE, and further includes: a period CSI of one downlink carrier in the carrier, or a periodic CSI of a plurality of different downlink carriers in a downlink carrier aggregated or activated by the UE;

以及，所述预处理单元确定的所述 UE发送的非周期 CSI为所述 UE聚合或激活的下行载波中的一个下行载波的非周期 CSI, 或者，为所述 UE聚合或激活的下行载波中的多个不同的下行载波的非周期 CSI。 And the aperiodic CSI sent by the UE determined by the pre-processing unit is an aperiodic CSI of one downlink carrier that is aggregated or activated by the UE, or is a downlink carrier that is aggregated or activated by the UE. Aperiodic CSI for multiple different downlink carriers.

26、如权利要求 25 所述的装置，其特征在于，所述预处理单元确定所述 UE发送的周期 CSI和非周期 CSI的属性时，若获知所述 UE聚合或激活的下行载波中的一个下行载波同时存在周期 CSI和非周期 CSI,则所述预处理单元确定所述 UE反馈的该下行载波的 CSI为非周期 CSI。 The apparatus according to claim 25, wherein, when the pre-processing unit determines the attributes of the periodic CSI and the aperiodic CSI sent by the UE, if one of the downlink carriers aggregated or activated by the UE is known, The downlink carrier has a periodic CSI and an aperiodic CSI, and the pre-processing unit determines that the CSI of the downlink carrier fed back by the UE is a non-periodic CSI.

27、如权利要求 22 - 26任一项所述的装置，其特征在于，所述通信单元在所述第一上行载波内，通过 PUCCH接收所述 UE发送的周期 CSI时，釆用的 PUCCH信道格式为 PUCCH format 2、 PUCCH format 2a和 PUCCH format 2b中的任意一种，或者，釆用的 PUCCH信道格式为基于离散傅立叶变换扩展的正交频分复用 DFT-S-OFDM的信道格式。 The apparatus according to any one of claims 22 to 26, wherein the communication unit uses the PUCCH channel when the periodic CSI transmitted by the UE is received by the PUCCH in the first uplink carrier. The format is any one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b, or the PUCCH channel format used is a channel format of orthogonal frequency division multiplexing DFT-S-OFDM based on discrete Fourier transform extension.

28、如权利要求 22 - 26任一项所述的装置，其特征在于，所述通信单元在所述第二上行载波内，通过 PUSCH接收所述 UE发送的非周期 CSI时，若在所述第二上行载波内，同时通过所述 PUSCH与 UE进行数据传输，则所述通信单元在执行数据接收时，根据所述 UE发送的非周期 CSI的反馈比特数进行解速率匹配。 The device according to any one of claims 22 to 26, wherein, when the communication unit receives the aperiodic CSI sent by the UE by using the PUSCH in the second uplink carrier, In the second uplink carrier, when the data is transmitted by the PUSCH and the UE, the communication unit performs rate de-matching according to the number of feedback bits of the aperiodic CSI sent by the UE when performing data reception.

29、一种用于信道状态信息 CSI 的反馈及接收的 LTE-A ***，其特征在于，包括用户设备 UE和基站，其中， An LTE-A system for feedback and reception of channel state information CSI, which is characterized in that it includes a user equipment UE and a base station, where

UE, 用于确定用以传输 CSI的物理上行控制信道 PUCCH所在的第一上行载波，和用以传输 CSI的物理上行共享信道 PUSCH所在的第二上行载波，以及确定待反馈的周期 CSI和非周期 CSI, 并在所述第一上行载波内，通过 PUCCH 发送所述待反馈的周期 CSI, 在所述第二上行载波内，通过 PUSCH发送所述待反馈的非周期 CSI; a UE, configured to determine a first uplink carrier where a physical uplink control channel PUCCH for transmitting CSI is located, and a second uplink carrier where a physical uplink shared channel PUSCH for transmitting CSI is located, and determine a periodic CSI and aperiodic to be fed back CSI, and transmitting, in the first uplink carrier, the periodic CSI to be fed back through the PUCCH, and sending the aperiodic CSI to be fed back through the PUSCH in the second uplink carrier;

基站，用于确定用以传输 CSI的 PUCCH所在的第一上行载波，和用以传输 CSI的 PUSCH所在的第二上行载波，以及确定 UE发送的周期 CSI和非周期 CSI 的属性，所述属性至少包括周期 CSI和非周期 CSI分别对应的下行载波，和所述 UE发送的周期 CSI和非周期 CSI的反馈比特数；以及在所述第一上行载波内，基于所述周期 CSI的属性，通过 PUCCH接收所述 UE发送的周期 CSI, 在所述第二上行载波内，基于所述非周期 CSI的属性，通过 PUSCH接收所述 UE 发送的非周期 CSI。 a base station, configured to determine a first uplink carrier where a PUCCH for transmitting CSI is located, and a second uplink carrier where a PUSCH for transmitting CSI is located, and determine an attribute of a periodic CSI and an aperiodic CSI sent by the UE, where the attribute is at least a downlink carrier corresponding to the periodic CSI and the aperiodic CSI, and a number of feedback bits of the periodic CSI and the aperiodic CSI sent by the UE; and in the first uplink carrier, based on the attribute of the periodic CSI, through the PUCCH Receiving the periodic CSI sent by the UE, and receiving, in the second uplink carrier, the aperiodic CSI sent by the UE by using the PUSCH based on the attribute of the aperiodic CSI.