METHOD AND SYSTEM FOR ANTENNA SELECTION ALGORITHM AT THE TRANSMITTER

• US 20080014892A1
• Filed: 02/28/2007
• Published: 01/17/2008
• Est. Priority Date: 07/17/2006
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Aldana, Carlos
• Application Number:
  US11/680,325
• Publication Number:
  US 20080014892A1
• Time in Patent Office: Days
• US Class Current: 455/277.1
• CPC Class Codes: H04B 7/0691 using subgroups of transmit antennas
• CPC Class Codes: H04B 7/0874 using subgroups of receive antennas

Abstract

Aspects of a method and system for an antenna selection algorithm at the transmitter are presented. Aspects of a system for joint antenna selection may include a receiving mobile terminal that enables reception of a plurality of sounding frames via a plurality of receiving antennas. A processor may enable mapping of one of the plurality of receiving antennas to one of a plurality of received radio frequency (RF) chain signals based on the reception of the plurality of sounding frames. The receiving mobile terminal may enable transmission of antenna selection feedback information computed based on the reception of the plurality of sounding frames.

Claims

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

receiving a plurality of sounding frames via a plurality of receiving antennas;

mapping one of said plurality of receiving antennas to one of a plurality of received radio frequency (RF) chain signals based on said received plurality of sounding frames; and

transmitting antenna selection feedback information and/or channel state information computed based on said received plurality of sounding frames.

2. The method according to claim 1, wherein said plurality of sounding frames comprises a sequence of sounding frames.

3. The method according to claim 2, comprising transmitting a request to initiate an antenna selection procedure prior to receiving at least a portion of said sequence of sounding frames.

4. The method according to claim 3, wherein said request comprises a repetition indication.

5. The method according to claim 4, comprising repeating a sounding frame in said sequence of sounding frames, as determined by said repetition indication, within said received plurality of sounding frames.

6. The method according to claim 5, comprising configuring a distinct combination of receiving antennas from said plurality of receiving antennas for receiving each of said repeated sounding frame.

7. The method according to claim 1, comprising computing a phase shift difference for at least one of said plurality of received sounding frames.

8. The method according to claim 7, comprising computing at least one channel estimate matrix based on at least one said computed phase shift difference, said plurality of receiving antennas, and at least one transmitter index corresponding to at least one transmitting antenna utilized for transmitting said at least one of said plurality of sounding frames as determined based on an order of receiving sounding frames in said plurality of sounding frames.

9. The method according to claim 8, comprising generating said mapping of said plurality of receiving antennas to said plurality of received RF chains based on said computed at least one channel estimate matrix.

10. The method according to claim 8, comprising generating said antenna selection feedback information and/or said channel state information based on said computed at least one channel estimate matrix.

11. A system for communicating information in a wireless communication system, the system comprising:

at least one circuit that enables reception of a plurality of sounding frames via a plurality of receiving antennas;

at least one processor that enables mapping one of said plurality of receiving antennas to one of a plurality of received radio frequency (RF) chain signals based on said reception of said plurality of sounding frames; and

said at least one circuit enables transmission of antenna selection feedback information and/or channel state information computed based on said reception of said plurality of sounding frames.

12. The system according to claim 11, wherein said plurality of sounding frames comprises a sequence of sounding frames.

13. The system according to claim 12, wherein said at least one circuit enables transmission of a request to initiate an antenna selection procedure prior to reception of at least a portion of said sequence of sounding frames.

14. The system according to claim 13, wherein said request comprises a repetition indication.

15. The system according to claim 14, wherein said processor enables repetition of a sounding frame in said sequence of sounding frames, as determined by said repetition indication, within said received plurality of sounding frames.

16. The system according to claim 15, wherein said processor enables configuration of a distinct combination of receiving antennas from said plurality of receiving antennas for reception of each of said repeated sounding frame.

17. The system according to claim 11, wherein said processor enables computation of a phase shift difference for at least one of said plurality of received sounding frames.

18. The system according to claim 17, wherein said processor enables computation of at least one channel estimate matrix based on at least one said computed phase shift difference, said plurality of receiving antennas, and at least one transmitter index corresponding to at least one transmitting antenna utilized for transmission of said at least one of said plurality of sounding frames as determined based on an order of reception of sounding frames in said plurality of sounding frames.

19. The system according to claim 18, wherein said processor enables generation of said mapping of said plurality of receiving antennas to said plurality of received RF chains based on said computation of at least one channel estimate matrix.

20. The system according to claim 18, wherein said processor enable generation of said antenna selection feedback information and/or channel state information based on said computation of at least one channel estimate matrix.