Method and apparatus for setting reverse link CQI reporting modes in wireless communication system

• US 9,125,078 B2
• Filed: 09/20/2013
• Issued: 09/01/2015
• Est. Priority Date: 10/27/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sampath, Hemanth
• Primary Examiner(s): Masur, Paul H
• Application Number:
  US14/033,322
• Publication Number:
  US 20140022946A1
• Time in Patent Office: 711 Days
• Field of Search: 370/252, 370/342, 370/479
• US Class Current: 1/1
• CPC Class Codes: H04B 7/216 Code division or spread-spectrum multiple access [CDMA, SSMA]
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04J 13/00 Code division multiplex systems for frequency hopping H04B1/713
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/16 Deriving transmission power values from another channel
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels
• CPC Class Codes: H04W 52/48 during retransmission after error or non-acknowledgment
• CPC Class Codes: H04W 52/58 Format of the TPC bits
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: Y02D 30/00 Reducing energy consumption in communication networks

Abstract

A method and apparatus for setting Reverse Link CQI Reporting Modes in an access terminal is provided, comprising determining a value for CQIReportingMode received as a parameter in a transmitted message and setting the reverse link CQI reporting mode of the access terminal based on CQIReportingMode value. The CQIReportingMode value is indicative of a reporting mode selected from a plurality of reporting modes.

Claims

1. A method of determining reverse link channel quality indicator (CQI) reporting modes of an access terminal, comprising:

determining a CQI reporting mode value;

identifying a reverse link CQI reporting mode from a group of reporting modes based, at least in part, on the CQI reporting mode value; and

reporting CQI based, at least in part, on the identified reverse link CQI reporting mode to a base station.

2. The method of claim 1, wherein the reverse link CQI reporting mode comprises a plurality of fields that indicate a transmission characteristic.

3. The method of claim 2, wherein the CQI reporting mode value indicates a field of the plurality of fields of the reverse link CQI reporting mode.

4. The method of claim 2, wherein at least one field of the plurality of fields of the reverse link CQI reporting mode includes a rank that indicates a desired number of multiple input and multiple output (MIMO) layers.

5. The method of claim 2, wherein at least one field of the plurality of fields of the reverse link CQI reporting mode includes a preferred precoding matrix.

6. The method of claim 1, further comprising setting the reverse link CQI reporting mode of the access terminal to the identified reverse link CQI reporting mode.

7. The method of claim 1, wherein the reverse link CQI reporting mode comprises at least one of a single code word CQI reporting mode, a multiple code word CQI reporting mode, and a single input and single output (SISO) CQI reporting mode.

8. An apparatus for determining reverse link channel quality indicator (CQI) reporting modes, comprising:

at least one processor configured to;

determine a CQI reporting mode value;

identify a reverse link CQI reporting mode from a group of reporting modes based, at least in part, on the CQI reporting mode value; and

report CQI based, at least in part, on the identified reverse link CQI reporting mode to a base station; and

at least one memory configured to communicate with the at least one processor.

9. The apparatus of claim 8, wherein the reverse link CQI reporting mode comprises a plurality of fields that indicate a transmission characteristic.

10. The apparatus of claim 9, wherein the CQI reporting mode value indicates a field of the plurality of fields of the reverse link CQI reporting mode.

11. The apparatus of claim 9, wherein at least one field of the plurality of fields of the reverse link CQI reporting mode includes a rank that indicates a desired number of multiple input and multiple output (MIMO) layers.

12. The apparatus of claim 9, wherein at least one field of the plurality of fields of the reverse link CQI reporting mode includes a preferred precoding matrix.

13. The apparatus of claim 8, wherein the at least one processor is further configured to:

set the reverse link CQI reporting mode of the access terminal to the identified reverse link CQI reporting mode.

14. The apparatus of claim 8, wherein the reverse link CQI reporting mode comprises at least one of a single code word CQI reporting mode, a multiple code word CQI reporting mode, and a single input and single output (SISO) CQI reporting mode.

15. An apparatus for determining reverse link channel quality indicator (CQI) reporting modes, comprising:

means for determining a CQI reporting mode value;

means for identifying a reverse link CQI reporting mode from a group of reporting modes based, at least in part, on the CQI reporting mode value; and

means for reporting CQI based, at least in part, on the identified reverse link CQI reporting mode to a base station.

16. An apparatus for determining reverse link channel quality indicator (CQI) reporting modes of an access terminal, comprising:

at least one processor;

a non-transitory storage medium that is in communication with the at least one processor including instructions stored thereon, wherein the instructions cause the at least one processor to;

determine a CQI reporting mode value;

a reverse link CQI reporting mode from a group of reporting modes based, at least in part, on the CQI reporting mode value; and

report CQI based, at least in part, on the identified reverse link CQI reporting mode to a base station.

17. A non-transitory machine readable storage medium including instructions stored thereon, comprising:

a first set of instructions for determining a CQI reporting mode value;

a second set of instructions for identifying a reverse link CQI reporting mode from a group of reporting modes based, at least in part, on the CQI reporting mode value; and

a third set of instructions for reporting CQI based, at least in part, on the identified reverse link CQI reporting mode to a base station.