METHOD AND APPARATUS FOR UPDATING MULTICAST AND BROADCAST SERVICE

• US 20120287839A1
• Filed: 01/11/2011
• Published: 11/15/2012
• Est. Priority Date: 01/12/2010
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Eunkyung, Cha, Jae Sun, Jung, Soojung, Chang, Sung Cheol, Lim, Kwang Jae, Lee, Hyun, Yoon, Chul Sik
• Application Number:
  US13/521,628
• Publication Number:
  US 20120287839A1
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/50 Service provisioning or reconfiguring
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

When MBS information is updated, a base station transmits a first message to a terminal. The first message includes a service flow update indicator for indicating a scheme for describing a current MBS identifier (ID) and flow ID to be updated, information on the current MBS ID and flow ID described by the scheme indicated by the service flow update indicator, and new MBS information. The terminal transmits a second message to the base station in response to the first message.

Claims

1. A method of updating multicast and broadcast service (MBS) in a base station, the method comprising:

transmitting a first message to a terminal when MBS information is updated, the first message comprising a service flow update indicator for indicating a scheme for describing a current MBS identifier (ID) and flow ID to be updated, information on the current MBS ID and flow ID described by the scheme indicated by the service flow update indicator, and new MBS information; and

receiving a second message in response to the first message from the terminal.

2. The method of claim 1, wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

3. The method of claim 2, wherein the index is defined by a bitmap format where a plurality of combinations of MBS IDs and flow IDs are sorted with certain order and correspond to a plurality of bits respectively.

4. The method of claim 3, wherein a value of a bit corresponding to the combination of the current MBS ID and flow ID among the plurality of bits is ‘

1’

.

5. The method of claim 1, wherein the new MBS information comprises a new MBS ID and flow ID mapped to the current MBS ID and flow ID.

6. The method of claim 1, wherein a case in which the MBS information is updated comprises a case in which an MBS zone is updated, and

wherein the new MBS information comprises a new MBS zone ID.

7. The method of claim 1, wherein the first message further comprises a current MBS zone ID.

8. The method of claim 1, wherein the first message further comprises information on a carrier supported in a new MBS zone when the carrier supported in the new MBS zone is different from a carrier supported in a current MBS zone.

9. The method of claim 8, wherein the first message further comprises information on a carrier switching time.

10. A method of updating multicast and broadcast service (MBS) in a base station, the method comprising:

receiving a ranging request message from a terminal; and

transmitting a ranging response message to the terminal when MBS information is updated, the ranging response message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

11. A method of updating multicast and broadcast service (MBS) in a base station, the method comprising:

receiving a dynamic service change request message from a terminal; and

transmitting a dynamic service change response message to the terminal when MBS information is updated, the dynamic service change response message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

12. A method of updating multicast and broadcast service (MBS) in a base station, the method comprising:

transmitting a dynamic service change request message to a terminal when MBS information is updated, the dynamic service change request message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information; and

receiving a dynamic service change response message from the terminal,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

13. A method of updating multicast and broadcast service (MBS) in a terminal, the method comprising:

receiving a first message from a base station when MBS information is updated, the first message comprising a service flow update indicator for indicating a scheme for describing a current MBS identifier (ID) and flow ID to be updated, information on the current MBS ID and flow ID described by the scheme indicated by the service flow update indicator, and new MBS information; and

transmitting a second message in response to the first message to the base station.

14. A method of updating multicast and broadcast service (MBS) in a terminal, the method comprising:

transmitting a ranging request message to a base station; and

receiving a ranging response message from the base station when MBS information is updated, the ranging response message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

15. A method of updating multicast and broadcast service (MBS) in a terminal, the method comprising:

transmitting a dynamic service change request message to a base station; and

receiving a dynamic service change response message from the base station when MBS information is updated, the dynamic service change response message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.

16. A method of updating multicast and broadcast service (MBS) in a terminal, the method comprising:

receiving a dynamic service change request message from a base station when MBS information is updated, the dynamic service change request message comprising a service flow update indicator, information on a current MBS ID and flow ID to be updated which are described by a value of the service flow update indicator, and new MBS information; and

transmitting a dynamic service change response message to the base station,

wherein the information on the current MBS ID and flow ID is the current MBS ID and flow ID when the service flow update indicator has a first value, and

wherein the information on the current MBS ID and flow ID is an index for a combination of the current MBS ID and flow ID when the service flow update indicator has a second value.