System and Method for Intelligent Channel State Information Selection

Patent metadata

Field	Value
Publication number	US-2016149684-A1
Application number	US-201514946624-A
Country	US
Kind code	A1
Filing date	Nov 19, 2015
Priority date	Nov 21, 2014
Publication date	May 26, 2016
Grant date	—

Abstract

A method for providing feedback information includes receiving a configuration of a plurality of offset values, determining the feedback information in accordance with at least one measurement made by a user equipment and with the plurality of offset values, and sending the feedback information to a network controller.

First claim

What is claimed is:

1 . A method for providing feedback information, the method comprising:
receiving, by a user equipment (UE), a configuration of a plurality of offset values; determining, by the UE, the feedback information in accordance with at least one measurement made by the UE and with the plurality of offset values; and sending, by the UE, the feedback information to a network controller.

2 . The method of claim 1 , wherein the determining is performed when the UE is not an interference risk UE.

3 . The method of claim 2 , further comprising determining the feedback information in accordance with the at least one measurement made by the UE when the UE is an interference risk UE.

4 . The method of claim 1 , wherein the at least one measurement specifies a throughput of the UE, and wherein the plurality of offset values specifies an interference caused to other UEs.

5 . The method of claim 4 , wherein the interference caused to the other UEs is determined by information exchanges, simulation, or approximation.

6 . The method of claim 4 , wherein the feedback information is based on the throughput of the UE and the interference caused to the other UEs.

7 . The method of claim 4 , wherein the feedback information comprises a summation or a weighted summation of the throughput of the UE and the interference caused to the other UEs.

8 . The method of claim 4 , wherein the feedback information comprises a summation of the throughput of the UE and the interference caused to the other UEs resulting in largest feedback information value.

9 . The method of claim 1 , further comprising receiving a signaling that configures a reporting of the feedback information.

10 . The method of claim 1 , with the feedback information comprising channel state information (CSI).

11 . The method of claim 10 , wherein the CSI comprises a rank indicator (RI) and a precoding matrix indicator (PMI) pair.

12 . The method of claim 11 , wherein the feedback information further comprises beam selection information, or a reference signal resource selection.

13 . The method of claim 1 , wherein the UE and the network controller are part of a communications system supporting three dimensional multiple input multiple output (3D MIMO) operation.

14 . The method of claim 1 , wherein the offset values include measured interference impact values or artificially-generated interference impact values.

15 . The method of claim 1 , wherein the UE considers one or both of self-optimization or network optimization in determining the feedback information.

16 . A method for receiving feedback information, the method comprising:
signaling, by a network controller, a configuration of a plurality of offset values, the configuration prompting a selection of the feedback information in accordance with at least one measurement and with the plurality of offset values; and receiving, by the network controller, the feedback information.

17 . The method of claim 16 , further comprising the network controller adjusting the received feedback information.

18 . The method of claim 17 , wherein the configuration is signaled in a radio resource control (RRC) signaling or a system information block (SIB).

19 . A user equipment (UE) adapted to provide feedback information, the UE comprising:
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions that when executed by the processor configures the UE to:
receive a configuration of a plurality of offset values,
determine the feedback information in accordance with at least one measurement made by the UE and with the plurality of offset values, and
send the feedback information to a network controller.

20 . The UE of claim 19 , wherein the feedback information is determined when the UE is not an interference risk UE.

21 . The UE of claim 20 , wherein the programming includes instructions to determine the feedback information in accordance with the at least one measurement made by the UE when the UE is an interference risk UE.

22 . The UE of claim 19 , wherein the at least one measurement specifies a throughput of the UE, and wherein the plurality of offset values specifies an interference caused to other UEs.

23 . The UE of claim 22 , wherein the feedback information is based on the throughput of the UE and the interference caused to the other UEs.

24 . The UE of claim 19 , wherein the programming includes instructions to receive a signaling that configures a reporting of the feedback information.

25 . The UE of claim 19 , with the feedback information comprising channel state information (CSI).

26 . The UE of claim 25 , wherein the CSI comprises a rank indicator (RI) and a precoding matrix indicator (PMI) pair.

27 . The UE Of claim 26 , wherein the feedback information further comprises beam selection information, or a reference signal resource selection.

28 . The UE of claim 19 , wherein the UE and the network controller are part of a communications system supporting three dimensional multiple input multiple output (3D MIMO) operation.

29 . The UE of claim 19 , wherein the offset values include measured interference impact values or artificially-generated interference impact values.

30 . The UE of claim 19 , wherein the UE considers one or both of self-optimization or network optimization in determining the feedback information.

Assignees

• Futurewei Technologies Inc

Inventors

• Zhao Renjian
• Ma Zhengxiang
• Piazzi Leonard
• Wang Jian
• Xiao Weimin

Classifications

• H04B7/0413

  MIMO systems · CPC title

• H04B7/0626 Primary

  Channel coefficients, e.g. channel state information [CSI] · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title