System and Method for Configuring Channel State Information in a Communications System

• US 20140086084A1
• Filed: 09/27/2013
• Published: 03/27/2014
• Est. Priority Date: 09/27/2012
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Bi, Hao, Wang, Ke, Li, Zhongfeng, Lu, Jianmin, Mazzarese, David Jean-Marie
• Granted Patent: US 10,945,270 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 25/024 channel estimation algorithms
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

A method for communicating in a wireless communications system includes generating a channel state information (CSI) process information element (IE) including a CSI process identifier, a non-zero padded CSI-reference signal (CSI-RS) identifier, an interference measurement resource (IMR) identifier, and channel quality indicator (CQI) report configuration information. The method also includes transmitting the CSI process IE.

Claims

1. A method for communicating in a wireless communications system, the method comprising:

generating, by a device, a channel state information (CSI) process information element (IE) including

a CSI process identifier,

a non-zero power CSI-reference signal (CSI-RS) identifier,

an interference measurement resource (IMR) identifier, and

channel quality indicator (CQI) report configuration information; and

transmitting, by the device, the CSI process IE.

2. The method of claim 1, wherein the CQI report configuration information comprises a CQI report configuration identifier.

3. The method of claim 1, wherein the CQI report configuration information comprises a periodic CQI report configuration identifier and an aperiodic CQI report configuration identifier.

4. The method of claim 1, wherein the CQI report configuration information comprises a CQI report configuration IE.

5. The method of claim 1, wherein the CSI process IE comprises information about a single CSI process.

6. The method of claim 1, wherein the CSI process IE comprises information about CSI processes associated with a single receiving device.

7. The method of claim 1, wherein the CSI process IE further comprises a power offset.

8. The method of claim 1, further comprising receiving a CQI in accordance with the CQI report configuration information.

9. A method for communicating in a wireless communications system, the method comprising:

receiving, by a receiving device, a channel state information (CSI) process information element (IE) including

a CSI process identifier,

a non-zero power CSI-reference signal (CSI-RS) identifier,

an interference measurement resource (IMR) identifier, and

channel quality indicator (CQI) report configuration information;

processing, by the receiving device, the CSI process IE.

10. The method of claim 9, wherein the CQI report configuration information comprises a CQI report configuration identifier.

11. The method of claim 9, wherein the CQI report configuration information comprises a periodic CQI report configuration identifier and an aperiodic CQI report configuration identifier.

12. The method of claim 9, wherein the CQI report configuration information comprises a CQI report configuration IE.

13. The method of claim 9, wherein the CSI process IE comprises information about a single CSI process.

14. The method of claim 9, wherein the CSI process IE comprises information about CSI processes associated with a single receiving device.

15. The method of claim 9, further comprising:

measuring a communications channel in accordance with the non-zero power CSI-RS identifier and the IMR identifier;

deriving a CQI from the measured communications channel; and

transmitting the CQI in accordance with the CQI report configuration information.

16. The method of claim 15, wherein the CSI process IE comprises a power offset, and wherein the method further comprises adjusting the CQI in accordance with the power offset.

17. A device comprising:

a processor configured to generate a channel state information (CSI) process information element (IE) including

a CSI process identifier,

a non-zero power CSI-reference signal (CSI-RS) identifier,

an interference measurement resource (IMR) identifier, and

channel quality indicator (CQI) report configuration information; and

a transmitter operatively coupled to the processor, the transmitter configured to transmit the CSI process IE.

18. The device of claim 17, wherein the CQI report configuration information comprises a CQI report configuration identifier.

19. The device of claim 17, wherein the CQI report configuration information comprises a periodic CQI report configuration identifier and an aperiodic CQI report configuration identifier.

20. The device of claim 17, wherein the CQI report configuration information comprises a CQI report configuration IE.

21. The device of claim 17, wherein the device is one of an evolved NodeB and an entity tasked to configure CSI processes.

22. A receiving device comprising:

a receiver configured to receive a channel state information (CSI) process information element (IE) including

a CSI process identifier,

a non-zero power CSI-reference signal (CSI-RS) identifier,

an interference measurement resource (IMR) identifier, and

channel quality indicator (CQI) report configuration information; and

a processor operatively coupled to the receiver, the processor configured to operate on the CSI process IE.

23. The receiving device of claim 22, wherein the processor is configured to measure a communications channel in accordance with the non-zero power CSI-RS identifier and the IMR identifier, and to derive a CQI from the measured communications channel, and wherein the receiving device further comprises a transmitter operatively coupled to the processor, the transmitter configured to transmit the CQI in accordance with the CQI report configuration information.

24. The receiving device of claim 23, wherein the CSI process IE comprises a power offset, and wherein the processor is configured to adjust the CQI in accordance with the power offset.

25. The receiving device of claim 22, wherein the receiving device comprises one of an evolved NodeB and a user equipment.