METHOD FOR PERFORMING CARRIER MANAGEMENT PROCEDURE IN A MULTI-CARRIER SUPPORTED WIDEBAND WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME

• US 20110026475A1
• Filed: 07/27/2010
• Published: 02/03/2011
• Est. Priority Date: 07/28/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yuk, Young Soo, Jung, In Uk, Lee, Eun Jong, Kim, Yong Ho, Ryu, Ki Seon
• Granted Patent: US 8,576,788 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0042 intra-user or intra-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0078 Timing of allocation
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 36/0005 Control or signalling for completing the hand-off
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0027 for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
• CPC Class Codes: H04W 36/0072 of resource information of target access point
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/10 : adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A method and apparatus for performing carrier management in a broadband wireless communication system supporting multiple carriers are disclosed. The method for a mobile station to perform carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message from the base station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required, transmitting the acknowledgement message in response to the carrier management command message to the base station when the carrier management command message is successfully received and the polling bit is set to 1, and transmitting a carrier management indication message corresponding to the action code included in the carrier management command message to the base station.

Claims

1. A method for a mobile station to perform carrier management procedure with a base station supporting multiple carriers, the method comprising:

receiving a carrier management command message from the base station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required;

transmitting the acknowledgement message in response to the carrier management command message to the base station when the carrier management command message is successfully received and the polling bit is set to 1; and

transmitting a carrier management indication message corresponding to the action code included in the carrier management command message to the base station.

2. The method according to claim 1,

wherein the carrier management indication message is transmitted to the base station to inform the base station that a target carrier indicated by the carrier management command message is ready for signal transmission and reception.

3. The method according to claim 1,

wherein the acknowledgement message is a message acknowledgement (AAI_MSG-ACK) message or a message acknowledgement extended header (MAEH).

4. The method according to claim 1,

wherein, if the action code indicates primary carrier change, the acknowledgement message in response to the carrier management command message is transmitted on a serving primary carrier of the base station, and the carrier management indication message is transmitted on a target primary carrier of the base station.

5. The method according to claim 1,

wherein, if the action code is primary carrier change, the carrier management indication message is transmitted on a target primary carrier of the base station when the primary carrier change is successful, and the carrier management indication message is transmitted on a serving primary carrier of the base station when the primary carrier change is not successful.

6. The method according to claim 5,

wherein the carrier management indication message is transmitted through band request on the serving primary carrier of the base station when the primary carrier change is not successful and the serving primary carrier is deactivated.

7. A method for a base station supporting multiple carriers to perform carrier management procedure with a mobile station, the method comprising:

transmitting a carrier management command message to the mobile station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required;

receiving the acknowledgement message in response to the carrier management command message from the mobile station when the carrier management command message is successfully received by the mobile station and the polling bit is set to 1; and

receiving a carrier management indication message corresponding to the action code included in the carrier management command message from the mobile station.

8. The method according to claim 7,

starting a retransmission timer at a transmission time of the carrier management command message;

stopping the retransmission timer and performing an operation corresponding to the action code when the acknowledgement message is received prior to the expiration of the retransmission timer; and

retransmitting the carrier management command message when no acknowledgement message is received prior to the expiration of the retransmission timer.

9. The method according to claim 7,

wherein the carrier management indication message is received from the mobile station to inform the base station that a target carrier indicated by the carrier management command message is ready for signal transmission and reception.

10. The method according to claim 7,

wherein the acknowledgement message is a message acknowledgement (AAI_MSG-ACK) message or a message acknowledgement extended header (MAEH).

11. The method according to claim 7,

wherein, if the action code indicates primary carrier change, the acknowledgement message in response to the carrier management command message is received on a serving primary carrier from the mobile station, and the carrier management indication message is received on a target primary carrier from the mobile station.

12. The method according to claim 7,

herein, if the action code is primary carrier change, the carrier management indication message is received on a target primary carrier from the mobile station when the primary carrier change is successful, and the carrier management indication message is received on a serving primary carrier from the mobile station when the primary carrier change is not successful.

13. The method according to claim 12,

wherein the carrier management indication message is received through band request on the serving primary carrier from the mobile station when the primary carrier change is not successful and the serving primary carrier is deactivated.

14. A mobile station for performing a carrier management procedure with a base station supporting multiple carriers, the mobile station comprising:

a reception module for receiving a downlink control signal and downlink data from the base station;

a transmission module for transmitting an uplink control signal and uplink data to the base station; and

a processor connected to the reception module and the transmission module for controlling the mobile station including the reception module and the transmission module,

wherein the processor is configured to;

control the reception module to receive a carrier management command message from the base station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required,

control the transmission module to transmit the acknowledgement message in response to the carrier management command message to the base station when the carrier management command message is successfully received and the polling bit is set to 1,

control the mobile station to perform carrier management operation based on the carrier management command message, and

control the transmission module to transmit a carrier management indication message corresponding to the action code included in the carrier management command message to the base station.

15. A base station supporting multiple carriers for performing a carrier management procedure with a mobile station, the base station comprising:

a reception module for receiving an uplink control signal and uplink data from the mobile station;

a transmission module for transmitting a downlink control signal and downlink data to the mobile station; and

a processor connected to the reception module and the transmission module for controlling the base station including the reception module and the transmission module,

wherein the processor is configured to;

control the transmission module to transmit a carrier management command message to the mobile station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required,

control the reception module to receive the acknowledgement message in response to the carrier management command message from the mobile station when the carrier management command message is successfully received by the mobile station and the polling bit is set to 1,

control the reception module to receive a carrier management indication message corresponding to the action code included in the carrier management command message from the mobile station.