Method and system for transmitting/receiving neighbor base-station advertisement message in broadband wireless access system

• US 20060089144A1
• Filed: 10/26/2005
• Published: 04/27/2006
• Est. Priority Date: 10/26/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Chang, Yong, Kim, Jun-Hyung, Kim, Jung-Won, Lim, Geun-Hwi, Chang, Hong-Sung
• Granted Patent: US 8,280,380 B2
• Time in Patent Office: Days
• US Class Current: 455/439
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Disclosed is a method and system for transmitting/receiving a neighbor base-station information message in a broadband wireless access system. A base station sets and transmits a neighbor base-station information message, which includes a specific flag field for limiting neighbor base-station information and a reserved field and omits iterative neighbor base-station information depending on a value set in the specific flag field, thereby increasing a transmission efficiency. A mobile terminal receives the neighbor base-station information message from the base station, checks the received message, and then updates an operator ID according to the value set in the specific flag field.

Claims

1. A method for receiving a neighbor base-station advertisement message from a base station, using a mobile station which is communicating with the base station in a broadband wireless access system, the method comprising:

receiving a neighbor base-station advertisement message including a predetermined flag field for indicating the presence or absence of operator identifier information; and

determining that operator identifier information is current operator identifier information when the predetermined flag field indicates the absence of the operator identifier information.

2. The method as claimed in claim 1, wherein, when the neighbor base-station advertisement message received from the base station includes operator identifier information and first neighbor base-station identifier information, the mobile station determines that second neighbor base-station identifier information included is not included in a downlink channel descriptor.

3. The method as claimed in claim 2, wherein the second neighbor base-station identifier includes a 3-byte operator identifier and a 3-byte first neighbor base-station identifier included in the neighbor base-station advertisement message

4. A method for transmitting a neighbor base-station advertisement message from a base station to a mobile station communicating with the base station, in a broadband wireless access system, the method comprising:

setting a value of a predetermined flag field indicating the presence or absence of operator identifier information to indicate that the absence of the operator identifier information; and

transmitting a neighbor base-station advertisement message including the predetermined flag field to the mobile station.

5. The method as claimed in claim 4, wherein, when the neighbor base-station advertisement message includes operator identifier information and first neighbor base-station identifier information, the neighbor base-station advertisement message does not include second neighbor base-station identifier information included in a downlink channel descriptor.

6. A broadband wireless access system for transmitting/receiving a neighbor base-station advertisement message, the system comprising:

a base station for transmitting a neighbor base-station advertisement message, including a predetermined flag field for indicating the presence or absence of operator identifier information; and

a mobile station for receiving the neighbor base-station advertisement message and determining whether the predetermined operator identifier information is current operator identifier information when the predetermined flag field the absence of operator identifier information.

7. The system as claimed in claim 6, wherein, when the neighbor base-station advertisement message includes operator identifier information and first neighbor base-station identifier information, the neighbor base-station advertisement message does not include second neighbor base-station identifier information included in a downlink channel descriptor.

8. The system as claimed in claim 7, wherein the second neighbor base-station identifier has a size of 6 bytes, and the mobile station recognizes the second neighbor base-station identifier by a combination of a 3-byte operator identifier and a 3-byte first neighbor base-station identifier included in the neighbor base-station advertisement message.