CQICH allocation request header for communicating feedback information

• US 7,630,391 B2
• Filed: 03/13/2006
• Issued: 12/08/2009
• Est. Priority Date: 03/12/2005
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Jin-Young, Jin, Yong-Suk, Ihm, Bin-Chul
• Primary Examiner(s): Tran; Phuc H
• Application Number:
  US11/375,181
• Publication Number:
  US 20060250963A1
• Time in Patent Office: 1,366 Days
• Field of Search: None
• US Class Current: 370/431
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

A method of communicating feedback information between a mobile station and a base station by determining a need to request bandwidth allocation; providing information to a base station according to the determining, wherein the information indicates bandwidth allocation for a fast feedback channel, which is a robust channel; and performing communication with the base station upon bandwidth allocation according to the provided information.

Claims

1. A method of communicating feedback information between a mobile station and a base station, the method comprising:

sending a bandwidth allocation request to a base station to report information using a medium access control (MAC) management header,

wherein the MAC management header comprises information related to a feedback type, a fast base station switching (FBSS) indicator and a preferred period;

receiving a response to the bandwidth allocation request assigning a bandwidth region to be reported; and

sending the information to the base station by using the bandwidth allocated according to the bandwidth allocation request.

2. The method of claim 1, wherein the bandwidth allocation request is a CQICH allocation request.

3. The method of claim 1, wherein the preferred period relates to a CQICH allocation period that the mobile station prefers.

4. The method of claim 1, wherein the information reported to the base station is feedback information.

5. The method of claim 4, wherein the information is related to a feedback type comprising at least one of downlinik signal strength, DL measurement/Precoding matrix codebook, Quantized precoding weight feedback, Index to precoding matrix in codebook, and Channel Matrix Information.

6. The method of claim 1, wherein the response comprises at least one CQICH enhanced allocation IL (information element).

7. The method of claim 1, wherein the response comprises at least one CQICH allocation IL (information element).

8. The method of claim 1, wherein the response comprises at least one fast-feedback allocation sub-header.

9. The method of claim 8, wherein the fast-feedback allocation sub-header includes a feedback type to indicate at least one of fast DL measurement, fast MIMO feedback, and MIMO mode/permutation mode feedback.

10. The method of claim 8, wherein the fast-feedback allocation sub-header is used when data to be transmitted on a downlink exists.

11. The method of claim 1, wherein the fast base station switching (FBSS) indicator is set when the mobile station requests CQICH during FBSS handover.

12. The method of claim 1, wherein the steps are applicable to at least one of OFDMA, OFDM, WiMAX, and 4G communication systems.

13. The method of claim 1, wherein assigning the bandwidth region is to assign one or multiple CQICH channels.