Method of updating repeatedly-transmitted information in a wireless communication system

• US 9,100,896 B2
• Filed: 06/17/2008
• Issued: 08/04/2015
• Est. Priority Date: 06/18/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): Mills, Donald
• Assistant Examiner(s): Baron, Henry
• Application Number:
  US12/602,763
• Publication Number:
  US 20100174809A1
• Time in Patent Office: 2,604 Days
• Field of Search: 370/259, 370/312, 370/314, 370/321, 370/328, 455/424.1, 455/412.1, 709/221
• US Class Current: 1/1
• 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: Y02D 30/70 in wireless communication networks

Abstract

A method of updating repeatedly-transmitted information from a network to a user equipment in a wireless communication system is disclosed. The network transmits an indicator to the user equipment, the indicator indicating that repeatedly-transmitted information has been updated, and transmits the updated repeatedly-transmitted information to the user equipment in accordance with the indicator. The user equipment receives the updated repeatedly-transmitted information only if it receives an indicator from the network, the indicator indicating that the repeatedly-transmitted information has been updated.

Claims

1. A method for updating information repeatedly-transmitted from a network to a user equipment in a wireless communication system, the method comprising:

transmitting control information to the user equipment, the control information including a first indicator indicating that the repeatedly-transmitted information has been updated; and

transmitting the updated repeatedly-transmitted information to the user equipment according to the control information,

wherein the repeatedly-transmitted information is system information including at least one information block,

wherein the system information is transmitted through a Broadcast Control Channel (BCCH) that is a logical channel,

wherein the first indicator is a BCCH update Radio Network Temporary Identifier (RNTI),

wherein the updated repeatedly-transmitted information is received by the user equipment when the user equipment identifies that the repeatedly-transmitted information has been updated by determining that the first indicator in the control information is different from a previously received first indicator, and

wherein, if a specific information block of the at least one information block is updated, the control information further includes a second indicator indicating that the specific information block has been updated and the previously received first indicator is selected from among a plurality of previous first indicators by using the second indicator.

2. The method of claim 1, wherein the control information is transmitted through a first layer/second layer (L1/L2) control channel.

3. The method of claim 1, wherein:

the first indicator is one of a plurality of identifiers; and

the one of the plurality of identifiers is different from another identifier for previous repeatedly-transmitted information.

4. The method of claim 3, wherein the control information further includes a repeatedly-transmitted information identifier identifying the repeatedly-transmitted information.

5. The method of claim 1, wherein the control information further includes an identifier of the at least one information block included in the system information.

6. The method of claim 5, wherein:

the first indicator is one of a plurality of identifiers; and

the one of the plurality of identifiers is different from another identifier for previous repeatedly-transmitted information.

7. The method of claim 1, wherein the control information further includes information associated with a time when the system information is transmitted.

8. The method of claim 1, wherein the control information further includes information associated with a time-frequency region through which the system information is transmitted.

9. A method for updating information repeatedly-transmitted from a network to a user equipment in a wireless communication system, the method comprising:

receiving control information including a first indicator indicating that the repeatedly-transmitted information has been updated; and

receiving the updated repeatedly-transmitted information in the user equipment when the user equipment identifies that the repeatedly-transmitted information has been updated by determining that the first indicator in the control information is different from a previously received first indicator, wherein the repeatedly-transmitted information is system information including at least one information block,

wherein the system information is transmitted through a Broadcast Control Channel (BCCH) that is a logical channel,

wherein the first indicator is a BCCH update Radio Network Temporary Identifier (RNTI),

wherein, if a specific information block of the at least one information block is updated, the control information further includes a second indicator indicating that the specific information block has been updated, and

wherein the previously received first indicator is selected from among a plurality of previously received first indicators by using the second indicator.

10. The method of claim 9, wherein the control information is transmitted through a first layer/second layer (L1/L2) control channel.

11. The method of claim 9, wherein:

the first indicator is one of a plurality of identifiers; and

the one of the plurality of identifiers is different from an identifier for previous repeatedly-transmitted information.

12. The method of claim 11, wherein the control information further includes a repeatedly-transmitted information identifier identifying the repeatedly-transmitted information.

13. The method of claim 9, wherein the control information further includes an identifier of the at least one information block included in the system information.

14. The method of claim 13, wherein:

the first indicator is one of a plurality of identifiers; and

the one of the plurality of identifiers is different from an identifier for previous repeatedly-transmitted information.

15. The method of claim 9, wherein the control information further includes information associated with a time when the system information is transmitted.

16. The method of claim 9, wherein the control information further includes information associated with a time-frequency region through which the system information is transmitted.