Method for handling timers after an RLC reset or re-establishment in a wireless communications system

• US 7,227,856 B2
• Filed: 08/13/2002
• Issued: 06/05/2007
• Est. Priority Date: 08/13/2002
• Status: Active Grant

• Current Assignee: Innovative Sonic Limited
• Original Assignee: Innovative Sonic Limited
• Inventors: Wu, Chih-Hsiang
• Primary Examiner(s): LEE, CHI HO A
• Application Number:
  US10/064,747
• Publication Number:
  US 20040032851A1
• Time in Patent Office: 1,757 Days
• Field of Search: None
• US Class Current: 370/346
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/187 Details of sliding window management
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 67/00 Network arrangements or protocols for supporting network services or applications user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 80/02 Data link layer protocols

Abstract

A method for handling timers in a wireless communication system includes starting a Timer_Poll_Periodic timer for a Radio Link Control Acknowledged Mode (RLC AM) entity, performing a reset procedure for the RLC AM entity, and restarting the Timer_Poll_Periodic timerin response to the Timer_Poll_Periodic timer expiring prior to completion of the reset procedure. The claimed invention also specifies appropriate handling of eight other timers after an RLC reset or re-establishment in order to prevent the RLC AM entity from experiencing deadlock or reduction in quality of service.

Claims

1. A method for handling timers in a wireless communication system, the method comprising:

starting a Timer_Poll_Periodic timer for a Radio Link Control Acknowledged Mode (RLC AM) entity;

performing a reset procedure for the RLC AM entity; and

restarting the Timer_Poll_Periodic timer in response to the Timer_Poll_Periodic timer expiring prior to completion of the reset procedure; and

not stopping the Timer_Poll_Periodic timer after the reset procedure.

3. The method of claim 1 further comprising maintaining a value of the Timer_Poll_Periodic timer and maintaining operation of the Timer_Poll_Periodic timer in response to the reset procedure.

2. A method for handling timers in a wireless communication system, the method comprising:

starting a Timer_Poll_Periodic timer for a Radio Link Control Acknowledged Mode (RLC AM) entity;

performming a reset procedure for the RLC AM entity;

restarting the Timer_Poll_Periodic timer in response to the Timer_Poll_Periodic timer expiring prior to completion of the reset procedure; and

restarting the Timer_Poll_Periodic timer in response to the reset procedure.