CN-122003938-A - Systems and methods for frequency division duplex multiple input multiple output enhanced channel state information

CN122003938ACN 122003938 ACN122003938 ACN 122003938ACN-122003938-A

Abstract

The systems and methods described herein relate to a wireless communication method. The wireless communication method may include the wireless communication node transmitting a first message to at least a first wireless communication device of the plurality of wireless communication devices, the first message containing an indication of a first parameter in a first discrete set or a second discrete set associated with a base selection to instruct the first wireless communication device to transmit a second message associated with Channel State Information (CSI) feedback. The wireless communication method may include the wireless communication node receiving a second message from each of the plurality of wireless communication devices, the second message containing an indication of a second parameter associated with a base selection. The wireless communication method may include the wireless communication node determining a third message for downlink multi-user transmission.

Inventors

WEI NING
JIANG GUANGYU
TIAN KAIBO

Assignees

中兴通讯股份有限公司

Dates

Publication Date: 20260508
Application Date: 20231204

Claims (13)

1. A method of wireless communication, comprising: Transmitting, by a wireless communication node, a first message to at least a first wireless communication device of a plurality of wireless communication devices, the first message containing an indication of a first parameter in a first or second discrete set associated with a base selection to instruct the first wireless communication device to transmit a second message associated with Channel State Information (CSI) feedback; Receiving, by the wireless communication node, the second message from each of the plurality of wireless communication devices, the second message containing an indication of a second parameter associated with a base selection, and A third message for downlink multi-user transmission is determined by the wireless communication node based on the second message received from each of the plurality of wireless communication devices.
2. The wireless communication method of claim 1, wherein the first parameter selected from the first discrete set or the second discrete set is less than or equal to the second parameter.
3. The wireless communication method of claim 1, wherein a largest element of the second discrete set is larger than a largest element of the first discrete set.
4. The wireless communication method of claim 1, wherein the second parameter is a sum of the first parameter and a number of additional bases determined by one of the plurality of wireless communication devices.
5. The wireless communication method of claim 1, wherein the second message is determined based on an amount of one or more rounds of CSI feedback association performed by at least one of the plurality of wireless communication devices.
6. The wireless communication method of claim 1, wherein the second message contains a feedback quantity identifying a plurality of bases and/or a plurality of respective combination/weight coefficients.
7. The wireless communication method of claim 1, wherein the wireless communication node is a distributed base station having two or more different nodes.
8. The wireless communication method of claim 7, wherein each of the two or more different nodes is at least one of a transmission receiving point, an antenna panel, an access point, or one of the plurality of wireless communication devices.
9. The wireless communication method of claim 1, wherein the wireless communication node determines the third message for channel precoding of the downlink multi-user transmission by configuring a filter to modify the selected basis reported in the second message.
10. The wireless communication method of claim 1, wherein the result of the base selection is a subset of bases and/or corresponding combining coefficients for wholly or partially representing wireless channels between the wireless communication node and the wireless communication device.
11. A method of wireless communication, comprising: Receiving, by at least a first wireless communication device of a plurality of wireless communication devices, a first message from a wireless communication node, the first message containing an indication of a first parameter in a first or second discrete set associated with a base selection to instruct the first wireless communication device to transmit a second message associated with Channel State Information (CSI) feedback, and Transmitting, by each of the plurality of wireless communication devices, the second message to the wireless communication node, the second message containing an indication of a second parameter associated with base selection, wherein the wireless communication node determines a third message for downlink multi-user transmission based on the second message received from each of the plurality of wireless communication devices.
12. A wireless communication device comprising a processor and a memory, wherein the processor is configured to read codes from the memory and implement the method of any one of claims 1 to 10.
13. A computer program product comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement the method according to any of claims 1 to 10.

Description

Systems and methods for frequency division duplex multiple input multiple output enhanced channel state information Technical Field The present disclosure relates generally to wireless communications, including but not limited to systems and methods for enhanced channel state Information (CHANNEL STATE Information, CSI) for frequency division duplex (Frequency Division Duplex, FDD) Multiple-Input-Multiple-Output (MIMO). Background The standardization organization third generation partnership project (Third Generation Partnership Project,3 GPP) is currently making new wireless interfaces, called 5G new air interface (5G New Radio,5G NR), and next generation packet core networks (Next Generation Packet Core Network, NG-CN or NGC). The 5G NR will have three main components, a 5G access network (5G Access Network,5G-AN), a 5G core network (5G Core Network,5GC) and a User Equipment (UE). In order to facilitate the implementation of different data services and requirements, elements of 5GC (also referred to as network functions) have been simplified, some of which are software-based and some of which are hardware-based so that they can be adapted as desired. Disclosure of Invention The example embodiments disclosed herein are directed to solving problems associated with one or more of the problems set forth in the prior art, and to providing additional features that will become apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. According to various embodiments, example systems, methods, apparatus, and computer program products are disclosed herein. However, it should be understood that these embodiments are provided by way of example and not limitation, and that various modifications of the disclosed embodiments may be made while remaining within the scope of the disclosure, as would be apparent to one of ordinary skill in the art from reading the disclosure. At least one aspect relates to the following system, method, apparatus, or computer readable medium. A wireless communication method may include a wireless communication node transmitting a first message to at least a first wireless communication device of a plurality of wireless communication devices, the first message containing an indication of a first parameter in a first discrete set or a second discrete set associated with a base selection to instruct the first wireless communication device to transmit a second message associated with Channel State Information (CSI) feedback. The wireless communication method may include the wireless communication node receiving the second message from each of the plurality of wireless communication devices, the second message containing an indication of a second parameter associated with a base selection. The wireless communication method may include the wireless communication node determining a third message for downlink multi-user transmission. In some embodiments, the first parameter selected from the first discrete set or the second discrete set is less than or equal to the second parameter. In some embodiments, the largest element of the second discrete set is larger than the largest element of the first discrete set. In some embodiments, the second parameter is a sum of the first parameter and a number of additional bases determined by one of the plurality of wireless communication devices. In some embodiments, the second message is determined from an amount of one or more rounds of CSI feedback from at least one of the plurality of wireless communication devices. In some embodiments, wherein the second message contains a feedback quantity identifying a plurality of bases and/or a plurality of corresponding combination/weight coefficients. In some embodiments, the wireless communication node is a distributed base station comprising two or more different nodes. In some embodiments, each of the two or more different nodes is at least one of a transmission receiving point, an antenna panel, an access point, or one of the plurality of wireless communication devices. In some embodiments, the wireless communication node determines the third message for channel precoding of the downlink multi-user transmission by configuring a filter to modify the selected basis reported in the second message. In some embodiments, the result of the base selection is a subset of bases and/or corresponding combining coefficients for wholly or partially representing a wireless channel between the wireless communication node and the wireless communication device. Drawings Various example embodiments of the present scheme are described in detail below with reference to the following figures or drawings. These drawings are provided for illustrative purposes only and depict only example embodiments of the present solution to facilitate the reader's understanding of the present solution. Accordingly, these drawings should not be taken to limit the breadth, scope, or applicabili