Establishing additional reverse link carriers in multi-carrier wireless systems

• US 10,159,065 B2
• Filed: 09/25/2017
• Issued: 12/18/2018
• Est. Priority Date: 09/21/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yoon, Young C., Sun, Li-Hsiang, Lee, Suk Woo
• Primary Examiner(s): Elpenord, Candal
• Assistant Examiner(s): CASTANEYRA, RICARDO H
• Application Number:
  US15/714,925
• Publication Number:
  US 20180027542A1
• Time in Patent Office: 449 Days
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04W 52/12 Outer and inner loops
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/241 taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
• CPC Class Codes: H04W 52/247 where the output power of a terminal is based on a path parameter sent by another terminal
• CPC Class Codes: H04W 52/248 where transmission power control commands are generated based on a path parameter
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 52/54 Signalisation aspects of the TPC commands, e.g. frame structure
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/20 Manipulation of established connections
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and apparatus for reliably and quickly establishing multiple reverse links in multi-carrier wireless networks is provided. Signaling channels are established on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications.

Claims

1. A method of receiving control information at a mobile station (MS) in a multi-carrier wireless communication system, the method comprising:

establishing multiple forward link carriers between the MS and a base station (BS), wherein each of the multiple forward link carriers is separated from each other in a frequency domain;

establishing multiple reverse link carriers between the MS and the BS, wherein each of the multiple reverse link carriers is associated with a respective one of the multiple forward link carriers, and separated from each other in the frequency domain;

receiving a first acknowledgement (ACK) signal for a first data transmitted via a first reverse link carrier of the multiple reverse link carriers;

receiving a second ACK signal for a second data transmitted via a second reverse link carrier of the multiple reverse link carriers;

transmitting first channel quality information for a first forward link carrier of the multiple forward link carriers; and

transmitting second channel quality information for a second forward link carrier the multiple forward link carriers;

wherein the first ACK signal for the first data and the second ACK signal for the second data are received from the BS via a common forward link carrier of the multiple forward link carriers between the MS and the BS, and

wherein the first channel quality information for the first forward link carrier and the second channel quality information for the second forward link carrier are transmitted to the BS via a common reverse link carrier of the multiple reverse link carriers between the MS and the BS.

2. The method of claim 1, further comprising:

receiving first power control information for a first reverse link carrier of the multiple reverse link carriers; and

receiving second power control information for a second reverse link carrier of the multiple reverse link carriers, the second power control information for the second reverse link carrier being different from the first power control information for the first reverse link carrier,

wherein the first power control information for the first reverse link carrier and the second power control information for the second reverse link carrier are received from the BS via the common forward link carrier of the multiple forward link carriers between the MS and the BS.

3. A method of transmitting control information at a base station (BS) in a multi-carrier wireless communication system, the method comprising:

establishing multiple forward link carriers between a mobile station (MS) and the base station (BS), wherein each of the multiple forward link carriers is separated from each other in a frequency domain;

establishing multiple reverse link carriers between the MS and the BS, wherein each of the multiple reverse link carriers is associated with a respective one of the multiple forward link carriers, and separated from each other in the frequency domain;

transmitting a first acknowledgement (ACK) signal for a first data received via a first reverse link carrier of the multiple reverse link carriers;

transmitting a second ACK signal for a second data received via a second reverse link carrier of the multiple reverse link carriers;

receiving first channel quality information for a first forward link carrier of the multiple forward link carriers; and

receiving second channel quality information for a second forward link carrier the multiple forward link carriers;

wherein the first ACK signal for the first data and the second ACK signal for the second data are transmitted to the MS via a common forward link carrier of the multiple forward link carriers between the MS and the BS, and

wherein the first channel quality information for the first forward link carrier and the second channel quality information for the second forward link carrier are received from the MS via a common reverse link carrier of the multiple reverse link carriers between the MS and the BS.

4. The method of claim 3, further comprising:

transmitting first power control information for a first reverse link carrier of the multiple reverse link carriers; and

transmitting second power control information for a second reverse link carrier of the multiple reverse link carriers, the second power control information for the second reverse link carrier being different from the first power control information for the first reverse link carrier,

wherein the first power control information for the first reverse link carrier and the second power control information for the second reverse link carrier are transmitted to the MS via the common forward link carrier the multiple forward link carriers between the MS and the BS.

5. A mobile station (MS) used in a multi-carrier wireless communication system, the MS comprising:

a radio frequency unit; and

a processor configured to;

establish multiple forward link carriers between the MS and a base station (BS), wherein each of the multiple forward link carriers is separated from each other in a frequency domain;

establish multiple reverse link carriers between the MS and the BS, wherein each of the multiple reverse link carriers is associated with a respective one of the multiple forward link carriers, and separated from each other in the frequency domain;

receive a first acknowledgement (ACK) signal for a first data transmitted via a first reverse link carrier of the multiple reverse link carriers;

receive a second ACK signal for a second data transmitted via a second reverse link carrier of the multiple reverse link carriers;

transmit first channel quality information for a first forward link carrier of the multiple forward link carriers; and

transmit second channel quality information for a second forward link carrier the multiple forward link carriers;

wherein the first ACK signal for the first data and the second ACK signal for the second data are received from the BS via a common forward link carrier of the multiple forward link carriers between the MS and the BS, and

wherein the first channel quality information for the first forward link carrier and the second channel quality information for the second forward link carrier are transmitted to the BS via a common reverse link carrier of the multiple reverse link carriers between the MS and the BS.

6. The MS of claim 5, wherein the processor is further configured to:

receive first power control information for a first reverse link carrier of the multiple reverse link carriers; and

receive second power control information for a second reverse link carrier of the multiple reverse link carriers, the second power control information for the second reverse link carrier being different from the first power control information for the first reverse link carrier,

wherein the first power control information for the first reverse link carrier and the second power control information for the second reverse link carrier are received from the BS via the common forward link carrier of the multiple forward link carriers between the MS and the BS.

7. A base station (BS) used in a multi-carrier wireless communication system, the BS comprising:

a radio frequency unit; and

a processor configured to;

establish multiple forward link carriers between a mobile station (MS) and the base station (BS), wherein each of the multiple forward link carriers is separated from each other in a frequency domain;

establish multiple reverse link carriers between the MS and the BS, wherein each of the multiple reverse link carriers is associated with a respective one of the multiple forward link carriers, and separated from each other in the frequency domain;

transmit a first acknowledgement (ACK) signal for a first data received via a first reverse link carrier of the multiple reverse link carriers;

transmit a second ACK signal for a second data received via a second reverse link carrier of the multiple reverse link carriers;

receive first channel quality information for a first forward link carrier of the multiple forward link carriers; and

receive second channel quality information for a second forward link carrier the multiple forward link carriers;

wherein the first ACK signal for the first data and the second ACK signal for the second data are transmitted to the MS via a common forward link carrier of the multiple forward link carriers between the MS and the BS, and

wherein the first channel quality information for the first forward link carrier and the second channel quality information for the second forward link carrier are received from the MS via a common reverse link carrier of the multiple reverse link carriers between the MS and the BS.

8. The BS of claim 7, wherein the processor is further configured to:

transmit first power control information for a first reverse link carrier of the multiple reverse link carriers; and

transmit second power control information for a second reverse link carrier of the multiple reverse link carriers, the second power control information for the second reverse link carrier being different from the first power control information for the first reverse link carrier,

wherein the first power control information for the first reverse link carrier and the second power control information for the second reverse link carrier are transmitted to the MS via the common forward link carrier of the multiple forward link carriers between the MS and the BS.