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

• US 20110026495A1
• 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, Ryu, Ki Seon, Kim, Yong Ho
• Granted Patent: US 8,553,648 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• 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 performing carrier management in a broadband wireless communication system supporting multi-carrier (MC) are disclosed. A method for a single-carrier supported mobile station (MS) to perform a carrier change with a MC supported base station (BS) includes transmitting a message indicating a support of a basic MC mode in which the MS is aware of a MC operation of the BS, receiving a carrier management command message including an action code and an action time on a serving carrier, transmitting, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier on a target carrier, and receiving a control signal and data from the BS on the target carrier, wherein the serving carrier and the target carrier are controlled by a common Medium Access Control (MAC) of the BS.

Claims

1. A method for a single-carrier supported mobile station to perform a carrier change with a multi-carrier supported base station, the method comprising:

transmitting a message indicating a support of a basic multi-carrier (MC) mode in which the mobile station is aware of a multi-carrier operation of the base station, to the base station;

receiving a carrier management command message including an action code and an action time, on a serving carrier of the base station;

transmitting, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier of the base station, on a target carrier of the base station; and

receiving a control signal and data from the base station on the target carrier of the base station,

wherein the serving carrier and the target carrier are controlled by a single common Medium Access Control (MAC) of the base station.

2. The method according to claim 1,

wherein the transmitting of the message indicating the support of the basic MC mode is performed when the mobile station performs initial network entry to the base station.

3. The method according to claim 1, further comprising:

disconnecting a signal path on the serving carrier at the action time, and switching to the target carrier.

4. The method according to claim 3,

wherein the confirmation message is one of a bandwidth request, a channel quality indicator (CQI) report, and a carrier management indication message corresponding to the action code.

5. The method according to claim 1,

wherein the carrier management command message further includes a physical carrier indicator as an indicator of the target carrier.

6. The method according to claim 1,

wherein the action code indicates a primary carrier change or a carrier change.

7. The method according to claim 1,

wherein the carrier management command message further includes a dedicated CDMA ranging flag and a CDMA ranging code, and

the method for performing the carrier change further includes transmitting the CDMA ranging code on the target carrier of the base station at the action time.

8. The method according to claim 1,

wherein the carrier management command message further includes a disconnection time, and

the method for performing the carrier change further includes disconnecting a signal path on the serving carrier at the disconnection time.

9. The method according to claim 1, further comprising:

disconnecting a signal path on the serving carrier prior to the action time, wherein the transmitting of the confirmation message is performed at the action time.

10. A method for a multi-carrier supported base station to support a carrier change of a single-carrier supported mobile station, the method comprising:

receiving a message indicating a support of a basic multi-carrier (MC) mode in which the mobile station is aware of a multi-carrier operation of the base station, from the mobile station;

transmitting a carrier management command message including an action code and an action time, to the mobile station on a serving carrier;

receiving, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier from the mobile station on the target carrier; and

transmitting a control signal and data to the mobile station on the target carrier,

wherein the serving carrier and the target carrier are controlled by a single common Medium Access Control (MAC) of the base station.

11. The method according to claim 10,

wherein the receiving of the message indicating the support of the basic MC mode is performed when the mobile station performs initial network entry to the base station.

12. The method according to claim 10, further comprising:

disconnecting a signal path on the serving carrier at the action time, and switching to the target carrier.

13. The method according to claim 10,

wherein the confirmation message is one of a bandwidth request, a channel quality indicator (CQI) report, and a carrier management indication message corresponding to the action code.

14. The method according to claim 10,

wherein the carrier management command message further includes a physical carrier indicator as an indicator of the target carrier.

15. The method according to claim 10,

wherein the action code indicates a primary carrier change or a carrier change.

16. The method according to claim 10,

wherein the carrier management command message further includes a dedicated CDMA ranging flag and a CDMA ranging code, and

wherein the CDMA ranging code is received from the mobile station on the target carrier at the action time.

17. The method according to claim 10,

wherein the carrier management command message further includes a disconnection time, and

wherein a signal path on the serving carrier is disconnected at the disconnection time.

18. The method according to claim 10, further comprising:

disconnecting a signal path on the serving carrier prior to the action time, and the confirmation message is received from the mobile station at the action time.

19. A single-carrier supported mobile station for performing a carrier change with a multi-carrier supported base station, 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 a 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 transmission module to transmit a message indicating a support of a basic multi-carrier (MC) mode in which the mobile station is aware of a multi-carrier operation of the base station, to the base station,

control the reception module to receive a carrier management command message including an action code and an action time, on a serving carrier of the base station,

control the transmission module to transmit, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier of the base station on a target carrier of the base station, and

control the reception module to receive a control signal and data from the base station on the target carrier of the base station,

wherein the serving carrier and the target carrier are controlled by a single common Medium Access Control (MAC) of the base station.

20. A multi-carrier supported base station for supporting a carrier change of a single-carrier supported mobile station, the base station comprising:

a reception module for receiving a 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 mobile station including the reception module and the transmission module,

wherein the processor is configured to;

control the reception module to receive a message indicating a support of a basic multi-carrier (MC) mode in which the mobile station is aware of a multi-carrier operation of the base station, from the mobile station;

control the transmission module to transmit a carrier management command message including an action code and an action time, to the mobile station on a serving carrier,

control the reception module to receive, in response to the carrier management command message, a confirmation message indicating readiness of signal transmission/reception through a target carrier from the mobile station on the target carrier, and

control the transmission module to transmit a control signal and data to the mobile station on the target carrier,

wherein the serving carrier and the target carrier are controlled by a single common Medium Access Control (MAC) of the base station.