CN-116015378-B - Channel state information feedback and receiving method and device, equipment and storage medium

Abstract

The embodiment of the invention discloses a method and a device for feeding back and receiving channel state information, equipment and a storage medium, wherein the method for feeding back the channel state information comprises the steps of determining the priority of a Channel State Information (CSI) parameter in a CSI parameter set, determining the CSI parameter to be fed back and a time-frequency resource position for feeding back the CSI parameter to be fed back according to the priority of the CSI parameter, and feeding back the CSI parameter to be fed back on the time-frequency resource position.

Inventors

• XIAO HUAHUA
• JIANG CHUANGXIN
• WU HAO
• LU ZHAOHUA
• GAO BO
• LI RUYUE
• CAI JIANXING

Assignees

• 中兴通讯股份有限公司

Dates

Publication Date

20260512

Application Date

20170505

Claims (9)

1. 1. A method for wireless communication, comprising: determining, by the user equipment, a first reference signal received power, RSRP, value, wherein the first RSRP value is a maximum measurement value in the RSRP group; determining, by the user equipment, a second RSRP value based on the difference of the first RSRP values, and Reporting said first RSRP value and said second RSRP value in a physical layer message to a base station by said user equipment, Wherein the user equipment jointly encodes the first RSRP value with a channel state information reference signal resource indication CRI before reporting the first RSRP value to the base station.
2. 2. The method of claim 1, further comprising: reporting channel state information to the base station, wherein the channel state information comprises at least one of channel quality indication CQI, precoding matrix indication PMI and rank indication RI.
3. 3. A method for wireless communication, comprising: Receiving, by a base station, a first reference signal received power, RSRP, value and a second RSRP value in a physical layer message from a user equipment, wherein the first RSRP value is a maximum measurement value in an RSRP group and is jointly encoded with a channel state information reference signal resource indication, CRI, and wherein the second RSRP value is based on a difference of the first RSRP value, and And determining, by the base station, a reference signal received power according to the first RSRP value and the second RSRP value.
4. 4. A method according to claim 3, further comprising: Channel state information is received from the user equipment, wherein the channel state information comprises at least one of channel quality indication CQI, precoding matrix indication PMI and rank indication RI.
5. 5. An apparatus for wireless communication, comprising a processor configured to: Determining a first reference signal received power, RSRP, value, wherein the first RSRP value is a maximum measurement value in the RSRP group; Determining a second RSRP value based on the difference of the first RSRP values, and Reporting the first RSRP value and the second RSRP value to a base station in a physical layer message, Wherein the processor jointly encodes the first RSRP value with a channel state information reference signal resource indication CRI before reporting the first RSRP value to the base station.
6. 6. The apparatus of claim 5, wherein the processor is configured to report channel state information to the base station, the channel state information comprising at least one of a channel quality indication, CQI, a precoding matrix indication, PMI, a rank indication, RI.
7. 7. An apparatus for wireless communication, comprising a processor configured to: Receiving a first reference signal received power, RSRP, value and a second RSRP value in a physical layer message from a user equipment, wherein the first RSRP value is a maximum measurement value in an RSRP-group and is jointly encoded with a channel state information reference signal resource indication, CRI, and wherein the second RSRP value is based on a difference of the first RSRP value, and And determining reference signal receiving power according to the first RSRP value and the second RSRP value.
8. 8. The apparatus of claim 7, wherein the processor is configured to receive channel state information from the user equipment, wherein the channel state information comprises at least one of a channel quality indication, CQI, a precoding matrix indication, PMI, a rank indication, RI.
9. 9. A storage medium storing computer readable instructions which, when executed by a processor, cause the processor to perform the method of any one of claims 1-4.

Description

Channel state information feedback and receiving method and device, equipment and storage medium The application relates to a Chinese patent application with the application number of 201710317504.X, the application date of 2017, 5 months and 5 days, and the name of feedback and receiving method, device, equipment and storage medium of channel state information. Technical Field The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for feeding back and receiving channel state information. Background In wireless communication systems such as long term evolution (LTE, long Term Evolution) and New Radio, the first communication node and the second communication node generally use multiple antennas to transmit and receive respectively to obtain a higher transmission rate. In order to obtain the performance of the multi-antenna system, the first communication node needs to know the wireless channel state information, so as to adjust the direction of the wave beam or the pre-coding weight according to the wireless channel state information, and adjust the modulation coding mode. How to guarantee the accuracy of channel measurement and channel information feedback, the rationality and robustness of feedback overhead are a popular subject of research. Measurement and feedback of Channel State Information (CSI) is designed to be relatively simple in early protocols, and as technology advances, requirements for obtaining high-precision CSI are also increasing, and providing higher-progress CSI feedback at reasonable cost and proper complexity is a goal of wireless communication system design pursuit. With the development of Multiple-Input Multiple-Output (MIMO) computation, more and more CSI information needs to be fed back, and in addition to channel quality indication (Channel Quality Indication, CQI)/precoding matrix indication (Precoding Matrix Indicator, PMI)/Rank Indicator (RI), channel state information reference pilot resource indication (CSI-RS resource Indicator, CRI) is included. For codebooks, two CSI feedback categories, CSI feedback category I and CSI feedback category II, also appear. Due to the introduction of new first channel state information parameters, and due to the possible introduction of new channel state information parameters in the enhancement of CSI feedback class II, etc., the priority relation of these channel state information parameters, including the priority relation between the newly introduced CSI parameters and the original Release 13 related CSI parameters, and the priority relation between the newly introduced CSI parameters, how to determine and how to determine the resource positions of the feedback CSI parameters according to these priority relations in order to obtain better performance, and which parameters to feedback preferentially when a collision occurs, how to feedback some CSI parameters on limited resources, such as reference signal received power, how to determine the relation of CSI parameters to parameters of control channels outside the CSI parameters. In view of the above technical problems in the related art, no effective solution has been proposed at present. Disclosure of Invention In order to solve the existing technical problems, the embodiment of the invention provides a method, a device, equipment and a storage medium for transmitting channel state information, which determine the priority relation between newly introduced CSI parameters and the original CSI parameters related to Release 13 and the priority relation between the newly introduced CSI parameters, further determine the time-frequency resource position of the feedback CSI parameters according to the priority relations, improve the accuracy of channel state information transmission, and further improve the system performance. In order to achieve the above object, the technical solution of the embodiment of the present invention is as follows: In a first aspect, an embodiment of the present invention provides a method for feeding back channel state information, where the method includes: determining the priority of the CSI parameter in the Channel State Information (CSI) parameter set; Determining a to-be-fed-back CSI parameter and a time-frequency resource position for feeding back the to-be-fed-back CSI parameter according to the priority of the to-be-fed-back CSI parameter; and feeding back the CSI parameters to be fed back at the time-frequency resource positions. In a second aspect, an embodiment of the present invention provides a method for receiving channel state information, where the method includes: Determining the priority of the CSI parameter in the CSI parameter set; Determining the CSI parameter transmitted by the second communication node and the time-frequency resource position of the CSI parameter transmitted by the second communication node according to the priority of the CSI par