Method for repairing an error depending on a radio bearer type

• US 8,416,678 B2
• Filed: 10/29/2008
• Issued: 04/09/2013
• Est. Priority Date: 10/29/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Seung June, Lee, Young Dae, Chun, Sung Duck, Park, Sung Jun
• Primary Examiner(s): Rutkowski, Jeffrey M
• Assistant Examiner(s): LOO, JUVENA W
• Application Number:
  US12/739,282
• Publication Number:
  US 20100246382A1
• Time in Patent Office: 1,623 Days
• Field of Search: 370242-252, 370310-350, 370216-228
• US Class Current: 370/216
• CPC Class Codes: H04L 63/12 Applying verification of the received information cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A method of re-establishing a radio bearer in a wireless communication system is disclosed. The method of re-establishing a radio bearer of a user equipment in a wireless communication system comprises establishing a radio bearer; identifying whether an error has occurred in the radio bearer; and selectively re-establishing the radio bearer or all radio bearers of the user equipment in accordance with a type of the radio bearer if the error has occurred in the radio bearer.

Claims

1. A method of re-establishing one or more radio bearers at a user equipment in a wireless communication system, the method comprising:

establishing one or more data radio bearers and one or more signaling radio bearers;

receiving a message indicating that an error has occurred in a radio bearer; and

re-establishing only the radio bearer only when the radio bearer is a data radio bearer; and

re-establishing all of the one or more data radio bearers and the one or more signaling radio bearers when the radio bearer is a signaling radio bearer,

wherein if the message includes a value for a security-related parameter, one or more corresponding radio bearers are re-established using the received value for the security-related parameter,

wherein if the message does not include any value for the security-related parameter, one or more corresponding radio bearers are re-established using a pre-defined value for the security-related parameter.

2. The method of claim 1, wherein the error is a security failure.

3. The method of claim 1, wherein re-establishing the one or more corresponding radio bearers includes synchronizing a desynchronized value for the security-related parameter between the user equipment and a network.

4. The method of claim 1, wherein the security-related parameter includes a hyper frame numbers (HFN).

5. The method of claim 1, wherein the message is a packet data convergence protocol (PDCP) data unit or a radio resource control (RRC) signaling message.

6. The method of claim 4, wherein the HFN includes at least one of a transmitting HFN and a receiving HFN.

7. The method of claim 1, wherein re-establishing all of the one or more data radio bearers and the one or more signaling radio bearers includes re-establishing RRC connection.