METHOD AND APPARATUS FOR ENABLING ENHANCED CQI UPDATE FREQUENCY

• US 20130195097A1
• Filed: 10/13/2010
• Published: 08/01/2013
• Est. Priority Date: 03/11/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Fan, Mingxi, Guo, Jiming, Zheng, Ruiming
• Granted Patent: US 8,948,147 B2
• Time in Patent Office: Days
• US Class Current: 370/342
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

A method and apparatus for facilitating downlink data transmission in a TD-SCDMA system is provided. The method may comprise receiving, from a Node B, a channel quality indicator (CQI) request, wherein the CQI request is not associated with a payload transmission.

Claims

1. A method of wireless communication in a time division synchronous code division multiple access (TD-SCDMA) system, comprising:

receiving, from a Node B, a channel quality indicator (CQI) request, wherein the CQI request is not associated with a payload transmission.

2. The method of claim 1, further comprising:

generating a CQI response, wherein the CQI response indicates a maximum data rate at which a UE may receive; and

transmitting the CQI response to the Node B.

3. The method of claim 2, wherein the transmitting further comprises:

transmitting the CQI response at a defined time instance after the CQI request is received.

4. The method of claim 1, wherein the receiving further comprises receiving the CQI request from the Node B which is not actively serving a UE.

5. The method of claim 1, wherein the CQI request includes a define open-loop power value, and code and time dimension values.

6. The method of claim 1, wherein the receiving further comprises receiving using a high speed shared control channel (HS-SCCH).

7. The method of claim 2, wherein the transmitting further comprises transmitting using a high speed shared information control channel (HS-SICH).

8. The method of claim 1, wherein the wireless communication is performed in a time division high speed downlink packet access (TD-HSDPA) system.

9. An apparatus for wireless communication in a TD-SCDMA system, comprising:

means for receiving, from a Node B, a CQI request, wherein the CQI request is not associated with a payload transmission;

means for generating a CQI response, wherein the CQI response indicates a maximum data rate at which a UE may receive; and

means for transmitting the CQI response to the Node B.

10. The apparatus of claim 9, wherein the means for transmitting further comprises:

means for transmitting the CQI response at a defined time instance after the CQI request is received.

11. The apparatus of claim 9, wherein the means for receiving further comprises means for receiving the CQI request from the Node B which is not actively serving a UE.

12. The apparatus of claim 9, wherein the CQI request includes a define open-loop power value, and code and time dimension values.

13. The apparatus of claim 9, wherein the means for receiving further comprises means for receiving using a HS-SCCH.

14. The apparatus of claim 9, wherein the means for transmitting further comprises means for transmitting using a HS-SICH.

15. The apparatus of claim 9, wherein the wireless communication is performed in a TD-HSDPA system.

16. A computer program product, comprising:

a computer-readable medium comprising code for;

receiving, from a Node B, a CQI request, wherein the CQI request is not associated with a payload transmission.

17. The computer program product of claim 16, wherein the computer-readable medium further comprises code for:

generating a CQI response, wherein the CQI response indicates a maximum data rate at which a UE may receive; and

transmitting the CQI response to the Node B.

18. The computer program product of claim 17, wherein the computer-readable medium further comprises code for:

transmitting the CQI response at a defined time instance after the CQI request is received.

19. The computer program product of claim 16, wherein the computer-readable medium further comprises code for:

receiving the CQI request from the Node B which is not actively serving a UE.

20. The computer program product of claim 16, wherein the CQI request includes a define open-loop power value, and code and time dimension values.

21. The computer program product of claim 16, wherein the computer-readable medium further comprises code for:

receiving using a HS-SCCH.

22. The computer program product of claim 17, wherein the computer-readable medium further comprises code for:

transmitting using a HS-SICH.

23. The computer program product of claim 16, wherein the wireless communication is performed in a TD-HSDPA system.

24. An apparatus for wireless communication in a TD-SCDMA system, comprising:

a receiver configured to receive, from a Node B, a CQI request, wherein the CQI request is not associated with a payload transmission;

at least one processor; and

a memory coupled to the at least one processor,

wherein the at least one processor is configured to;

generate a CQI response, wherein the CQI response indicates a maximum data rate at which a UE may receive; and

a transmitter configured to transmit the CQI response to the Node B.

25. The apparatus of claim 24, wherein the transmitter is further configured to:

transmit the CQI response at a defined time instance after the CQI request is received.

26. The apparatus of claim 24, wherein the Node B is a Node B which is not actively serving by the UE.

27. The apparatus of claim 24, wherein the CQI request includes a define open-loop power value, and code and time dimension values.

28. The apparatus of claim 24, wherein the receiver is further configured to receive using a HS-SCCH.

29. The apparatus of claim 24, wherein transmitter is further configured to transmit using a HS-SICH.

30. The apparatus of claim 24, wherein the wireless communication is performed in a TD-HSDPA system.