Method for Transmitting Information in a Multiple Antenna System

• US 20080280619A1
• Filed: 08/16/2005
• Published: 11/13/2008
• Est. Priority Date: 03/12/2005
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Jin Young, Ihm, Bin Chul, Jin, Yong Suk
• Application Number:
  US11/908,406
• Publication Number:
  US 20080280619A1
• Time in Patent Office: Days
• US Class Current: 455/446
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04B 7/0628 Diversity capabilities
• CPC Class Codes: H04B 7/0689 using different transmission schemes, at least one of them being a diversity transmission scheme
• CPC Class Codes: H04B 7/0691 using subgroups of transmit antennas
• CPC Class Codes: H04B 7/0697 using spatial multiplexing
• CPC Class Codes: H04B 7/0854 using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
• CPC Class Codes: H04B 7/0862 receiver computing weights based on information from the transmitter
• CPC Class Codes: H04L 1/0618 Space-time coding
• CPC Class Codes: H04L 1/0675 characterised by the signaling

Abstract

A method of transmitting and receiving information in a wireless mobile communication system where a mobile station (MS) has at least one antenna is disclosed. More specifically, the method discloses transmitting information to a base station (BS). Here, the information includes the number of antennas to be used for transmission by the MS and whether the MS supports a collaborative spatial multiplexing (SM) scheme. Furthermore, the method discloses receiving information from the BS. Here, the information includes the number of antennas that can be used by the MS for transmission and a multi-input multi-output (MIMO) matrix to be used by each antenna of the MS.

Claims

1. A method of transmitting information in a wireless mobile communication system where a mobile station (MS) has at least one antenna, the method comprising:

determining a number of antennas to be used for transmission;

determining whether the MS supports a collaborative spatial multiplexing (SM) scheme; and

transmitting information to a base station (BS), wherein the information includes the number of antennas to be used for transmission by the MS and whether the MS supports a collaborative spatial multiplexing (SM) scheme.

2. The method of claim 1, further comprising receiving information from the BS, wherein the information includes the number of antennas that can be used by the MS for transmission and a multi-input multi-output (MIMO) matrix to be used by each antenna of the MS.

3. The method of claim 2, wherein the information related to the MIMO matrix is transmitted via a MIMO_UL_Enhanced_IE message by the BS.

4. The method of claim 2, wherein the information related to the number of antennas is transmitted via a SS Basic Capability Response (SBC-RSP) message

5. The method of claim 2, wherein the information from the BS further includes a matrix which was previously used by a BS having a plurality of transmission antennas.

6. The method of claim 1, wherein the information to the BS is transmitted via a SS Basic Capability Request (SBC-REQ) message.

7. The method of claim 1, wherein a Space-Time Transmit Diversity (STTD) scheme is used if the collaborative SM scheme is not supported by the MS.

8. The method of claim 1, wherein the BS has a plurality of transmission antennas.

9. A method of receiving information in a wireless mobile communication system where a mobile station (MS) has at least one antenna, the method comprising receiving information from the MS, wherein the information includes the number of antennas to be used for transmission by the MS and whether the MS supports a collaborative spatial multiplexing (SM) scheme.

10. The method of claim 9, further comprising transmitting information to the MS, wherein the information includes the number of antennas that can be used for transmission by the MS and a multi-input multi-output (MIMO) matrix to be used by each antenna of the MS.

11. The method of claim 10, wherein the information is transmitted via a SS Basic Capability Request (SBC-REQ) message.

12. The method of claim 10, wherein a Space-Time Transmit Diversity (STTD) scheme is used if the collaborative SM scheme is not supported by the MS.

13. The method of claim 10, wherein the BS has a plurality of transmission antennas.

14. The method of claim 9, wherein the MIMO matrix information is transmitted via a MIMO_UL_Enhanced_IE message by the BS.

15. The method of claim 9, wherein the information related to the number of antennas is transmitted via a SS Basic Capability Response (SBC-RSP) message

16. The method of claim 9, wherein the information from the BS further includes a matrix which was previously used by a BS having a plurality of transmission antennas.

17. A method of transmitting and receiving information in a wireless mobile communication system where a mobile station (MS) has at least one antenna, the method comprising:

transmitting information to a base station (BS), wherein the information includes the number of antennas to be used for transmission by the MS and whether the MS supports a collaborative spatial multiplexing (SM) scheme;

receiving the transmitted information by the BS;

transmitting information to the MS, wherein the information includes the number of antennas that can be used by the MS for transmission and a multi-input multi-output (MIMO) matrix to be used by each antenna of the MS; and

receiving the transmitted information by the MS.

18. The method of claim 17, wherein the information to the BS is transmitted via a SS Basic Capability Request (SBC-REQ) message by the MS.

19. The method of claim 17, wherein a Space-Time Transmit Diversity (STTD) scheme is used if the collaborative SM scheme is not supported by the MS.

20. The method of claim 17, wherein the MIMO matrix information is transmitted via a MIMO_UL_Enhanced_IE message by the BS.

21. The method of claim 17, wherein the information related to the number of antennas is transmitted via a SS Basic Capability Response (SBC-RSP) message

22. The method of claim 17, wherein the BS has a plurality of transmission antennas.

23. The method of claim 17, wherein the information from the BS further includes a matrix which was previously used by a BS having a plurality of transmission antennas.

24. A wireless mobile communication system for transmitting and receiving information where a mobile station (MS) has at least one antenna, the system comprising:

a transmitter of the MS for transmitting information to a base station (BS), wherein the information includes the number of antennas to be used for transmission by the MS and whether the MS supports a collaborative spatial multiplexing (SM) scheme;

a receiver of the BS for receiving the transmitted information from the MS;

a transmitter of the BS for transmitting information, wherein the information includes the number of antennas that can be used by the MS for transmission and a multi-input multi-output (MIMO) matrix to be used by each antenna of the MS; and

a receiver of the MS for receiving the transmitted information from the BS.