Systems and methods for control channel signaling

• US 9,184,870 B2
• Filed: 10/27/2005
• Issued: 11/10/2015
• Est. Priority Date: 04/01/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sampath, Hemanth, Gorokhov, Alexei, Khandekar, Aamod, Teague, Edward Harrison, Julian, David Jonathan, Kadous, Tamer, Sutivong, Arak
• Primary Examiner(s): Ho, Huy C
• Application Number:
  US11/261,836
• Publication Number:
  US 20060223449A1
• Time in Patent Office: 3,666 Days
• Field of Search: 455/69, 455/450, 455/24, 370/332, 370/334
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 2025/03414 Multicarrier
• CPC Class Codes: H04L 2025/03426 transmission using multiple-input and multiple-output channels
• CPC Class Codes: H04L 2025/03802 Signalling on the reverse channel
• CPC Class Codes: H04L 25/0204 of multiple channels
• CPC Class Codes: H04L 25/03343 Arrangements at the transmitter end
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

Methods and apparatuses are disclosed for providing flexible channel information feedback. In some cases this may be according to reporting types assigned by one or more sectors, with different reporting types for each sector. In other cases, a reporting mode is determined to determine the reporting types to be utilized.

Claims

1. A wireless communication apparatus comprising:

a memory; and

a processor coupled with the memory, the processor configured to select a type of channel information feedback from among a plurality of reverse link reporting types, based on a type of sector, wherein the type of sector is either serving or non-serving, wherein the type of channel information feedback comprises at least one of a spatial division multiple access channel quality indicator (SDMA CQI), a preferred segment channel quality indicator (CQI), a multiple code word (MCW) channel quality indicator, a single code word (SCW) channel quality indicator, or a single input single output (SISO) channel quality indicator.

2. The wireless communication apparatus of claim 1, wherein the processor is configured to select from among the plurality of reverse link reporting types based upon an instruction from another sector.

3. The wireless communication apparatus of claim 1, wherein the processor is configured to select multiple reporting types from among the plurality of reverse link reporting types for multiple messages based upon the sector type.

4. The wireless communication apparatus of claim 1, wherein the processor is configured to select from among the plurality of reverse link reporting types based upon a type of transmission mode on a forward link to the wireless communication apparatus.

5. The wireless communication apparatus of claim 1, wherein the processor is configured to select two reporting types from among the plurality of reverse link reporting types in one message, one reporting type including a channel quality indicator (CQI) value and the other reporting type including an offset of the CQI value.

6. The wireless communication apparatus of claim 1, wherein the processor is configured to select from among the plurality of reverse link reporting types based upon a type of desired transmission mode on a forward link to the wireless communication apparatus.

7. A method comprising:

transmitting first channel information according to a first reporting type to a first sector;

transmitting second channel information according to the first reporting type to a second sector;

transmitting third channel information according to a second reporting type to the first sector; and

transmitting fourth channel information according to the first reporting type to the second sector,

wherein the first reporting type and the second reporting type are selected from among a plurality of reverse link reporting types, based on a type of sector, wherein the type of sector is either serving or non-serving;

wherein the second reporting type comprises at least one of information identifying a preferred segment, information identifying a preferred spatial division multiple access (SDMA) index, a multiple code word (MCW) reporting format, a single code word (SCW) reporting format, or a single input single output (SISO) reporting format.

8. The method of claim 7, wherein the first sector comprises a serving sector and the second sector comprises a non-serving sector.

9. The method of claim 7, further comprising transmitting fifth channel information according to a first format to the second sector.

10. The method of claim 7, wherein the channel information comprises a channel quality indicator (CQI).

11. The method of claim 7, wherein the first sector comprises a member of a synchronous subset and the second sector comprises a member of a non-synchronous subset.

12. A wireless communication apparatus comprising:

means for transmitting first channel information according to a first reporting type to a first sector;

means for transmitting second channel information according to the first reporting type to a second sector;

means for transmitting third channel information according to a second reporting type to the first sector; and

means for transmitting fourth channel information according to the first reporting type to the second sector,

wherein the first reporting type and the second reporting type are selected from among a plurality of reverse link reporting types, based on a type of sector, wherein the type of sector is either serving or non-serving;

wherein the second reporting type comprises at least one of information identifying a preferred segment, information identifying a preferred spatial division multiple access (SDMA) index, a multiple code word (MCW) reporting format, a single code word (SCW) reporting format, or a single input single output (SISO) reporting format.

13. The wireless communication apparatus of claim 12, wherein the first sector comprises a serving sector and the second sector comprises a non-serving sector.

14. The wireless communication apparatus of claim 12, further comprising means for transmitting a fifth channel information according to the first reporting type to the second sector.

15. The wireless communication apparatus of claim 12, wherein the channel information comprises a channel quality indicator (CQI).

16. The wireless communication apparatus of claim 12, wherein the first sector comprises a member of a synchronous subset and the second sector comprises a member of a non-synchronous subset.

17. A method comprising:

determining a sector type for a sector, wherein the sector type is either serving or non-serving;

selecting a reporting mode based on the determined sector type, wherein the reporting mode is used to determine a reporting type from among a plurality of reverse link reporting types; and

generating a type of channel information feedback based on the sector type and the reporting type;

wherein the type of channel information feedback comprises at least one of a spatial division multiple access channel quality indicator (SDMA CQI), a preferred segment channel quality indicator (CQI), a multiple code word (MCW) channel quality indicator, a single code word (SCW) channel quality indicator, or a single input single output (SISO) channel quality indicator.

18. The method of claim 17, wherein the selection comprises selecting the reporting type based upon an instruction from another sector.

19. The method of claim 17, wherein the selection further comprises selecting multiple reporting types for multiple messages based upon the reporting mode.

20. The method of claim 17, wherein the selection comprises selecting based upon a type of transmission mode on a forward link to the wireless communication apparatus.

21. The method of claim 17, wherein the selection further comprises selecting two message formats for one message, wherein one format is a channel quality indicator (CQI) value and the other format is an offset of the CQI value.

22. An apparatus for wireless communication comprising:

means for determining a sector type, wherein the sector type is serving or non-serving;

means for determining a reporting mode, wherein the reporting mode is single input single output (SISO), multiple input multiple output single code word (MIMO SCW) or multiple input multiple output multiple code word (MIMO MCW); and

means for selecting a type of channel information feedback from among a plurality of reverse link reporting types based upon the sector type and the reporting mode;

wherein the type of channel information feedback comprises at least one of a spatial division multiple access channel quality indicator (SDMA CQI), a preferred segment channel quality indicator (CQI), a multiple code word (MCW) channel quality indicator, a single code word (SCW) channel quality indicator, or a single input single output (SISO) channel quality indicator.

23. The apparatus of claim 22, wherein the means for selecting comprises means for selecting based upon an instruction.

24. A computer program product, comprising:

a non-transitory computer-readable medium comprising;

code for causing at least one computer t to select a type of channel information feedback from among a plurality of reverse link reporting types, based on a type of sector;

wherein the type of sector is either serving or non-serving;

wherein the type of channel information feedback comprises at least one of a spatial division multiple access channel quality indicator (SDMA CQI), a preferred segment channel quality indicator (CQI), a multiple code word (MCW) channel quality indicator, a single code word (SCW) channel quality indicator, or a single input single output (SISO) channel quality indicator.

25. The computer program product of claim 24, wherein the non-transitory computer-readable medium further comprises code for causing the at least one computer to select from among the plurality of reverse link reporting types based upon an instruction from another sector.

26. The computer program product of claim 24, wherein the non-transitory computer-readable medium further comprises code for causing the at least one computer to select multiple reporting types from among the plurality of reverse link reporting types for multiple messages based upon the sector type.

27. The computer program product of claim 24, wherein the non-transitory computer-readable medium further comprises code for causing the at least one computer to select from among the plurality of reverse link reporting types based upon a type of transmission mode on a forward link to a wireless communication apparatus.

28. The computer program product of claim 24, wherein the non-transitory computer-readable medium further comprises code for causing the at least one computer to select two reporting types from among the plurality of reverse link reporting types in one message, one reporting type including a channel quality indicator (CQI) value and the other reporting type including an offset of the CQI value.