Establishing additional reverse link carriers in multi-carrier wireless systems

• US 8,184,600 B2
• Filed: 12/15/2010
• Issued: 05/22/2012
• 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): Bost, Dwayne
• Assistant Examiner(s): Sternbane, Larry
• Application Number:
  US12/968,940
• Publication Number:
  US 20110085485A1
• Time in Patent Office: 524 Days
• Field of Search: 370/335, 455/452.1, 455/522
• US Class Current: 370/335
• 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 the on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications.

Claims

1. A method of controlling transmission power of a reverse link carrier in a multi-carrier wireless communication system, the method comprising:

receiving information related to a link between a first forward link carrier and a first reverse link carrier, wherein the first forward link carrier is used to receive data from a base station and the first reverse link carrier is used to transmit data to the base station;

receiving information related to a link between a second forward link carrier and a second reverse link carrier, wherein the second forward link carrier is used to receive data from the base station and the second reverse link carrier is used to transmit data to the base station;

receiving power control information for the first reverse link carrier from the base station; and

receiving power control information for the second reverse link carrier from the base station,

wherein the power control information for the first reverse link carrier and the power control information for the second reverse link carrier are received via a single forward link carrier, and

wherein the first forward link carrier and the second forward link carrier are not the same.

2. The method of claim 1, further comprising:

receiving a notification signal from the base station via the first forward link carrier, wherein the notification signal is related to acquisition of the second reverse link carrier.

3. A method of controlling transmission power of a reverse link carrier in a multi-carrier wireless communication system, the method comprising:

transmitting information related to a link between a first forward link carrier and a first reverse link carrier, wherein the first forward link carrier is used to transmit data from a base station to a mobile terminal and the first reverse link carrier is used to receive data at the base station from the mobile terminal;

transmitting information related to a link between a second forward link carrier and a second reverse link carrier, wherein the second forward link carrier is used to transmit data from the base station to the mobile terminal and the second reverse link carrier is used to receive data at the base station from the mobile terminal;

transmitting power control information for the first reverse link carrier to the mobile terminal; and

transmitting power control information for the second reverse link carrier to the mobile terminal,

wherein the power control information for the first reverse link carrier and the power control information for the second reverse link carrier are transmitted via a single forward link carrier, and

wherein the first forward link carrier and the second forward link carrier are not the same.

4. The method of claim 3, further comprising:

transmitting a notification signal to the mobile terminal via the first forward link carrier, wherein the notification signal is related to acquisition of the second reverse link carrier.

5. A mobile terminal for controlling transmission power of a reverse link carrier in a multi-carrier wireless communication system, the mobile terminal comprising:

a transmitting/receiving unit configured to transmit data to and receive data from a base station;

a display unit configured to display user interface information;

an input unit configured to input user data; and

a processing unit configured to receive information related to a link between a first forward link carrier and a first reverse link carrier, to receive information related to a link between a second forward link carrier and a second reverse link carrier, to receive power control information for the first reverse link carrier from the base station and to receive power control information for the second reverse link carrier from the base station,

wherein the first forward link carrier is used to receive data from the base station and the first reverse link carrier is used to transmit data to the base station,

wherein the second forward link carrier is used to receive data from the base station and the second reverse link carrier is used to transmit data to the base station,

wherein the power control information for the first reverse link carrier and the power control information for the second reverse link carrier are received via a single forward link carrier, and

wherein the first forward link carrier and the second forward link carrier are not the same.

6. The mobile terminal of claim 5, wherein the processing unit is further configured to receive a notification signal from the base station via the first forward link carrier, wherein the notification signal is related to acquisition of the second reverse link carrier.

7. A base station for controlling transmission power of a reverse link carrier in a multi-carrier wireless communication system, the base station comprising:

a transmitter configured to transmit data to a mobile terminal;

a receiver configured to receive data from the mobile terminal; and

a controller configured to transmit information related to a link between a first forward link carrier and a first reverse link carrier, to transmit information related to a link between a second forward link carrier and a second reverse link carrier, to transmit power control information for the first reverse link carrier to the mobile terminal and to transmit power control information for the second reverse link carrier to the mobile terminal,

wherein the first forward link carrier is used to transmit data from the base station to a mobile terminal and the first reverse link carrier is used to receive data at the base station from the mobile terminal,

wherein the second forward link carrier is used to transmit data from the base station to the mobile terminal and the second reverse link carrier is used to receive data at the base station from the mobile terminal,

wherein the power control information for the first reverse link carrier and the power control information for the second reverse link carrier are transmitted via a single forward link carrier, and

wherein the first forward link carrier and the second forward link carrier are not the same.

8. The base station of claim 7, wherein the controller is further configured to transmit a notification signal to the mobile terminal via the first forward link carrier, wherein the notification signal is related to acquisition of the second reverse link carrier.