Method and apparatus for handling reset in a wireless communications system

• US 8,081,648 B2
• Filed: 01/09/2008
• Issued: 12/20/2011
• Est. Priority Date: 01/09/2007
• Status: Active Grant

• Current Assignee: Innovative Sonic Limited
• Original Assignee: Innovative Sonic Limited
• Inventors: Jiang, Sam Shiaw-Shiang
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): Ng, Fan
• Application Number:
  US12/007,341
• Publication Number:
  US 20080166970A1
• Time in Patent Office: 1,441 Days
• Field of Search: 370431-463
• US Class Current: 370/431
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end

Abstract

A method for handing reset in a first communications device of a wireless communications system is disclosed. The first communications device includes a first transmitter and a receiver. The method includes receiving a packet from a second communications device by the receiver, triggering a reset procedure by the receiver when a protocol error is detected by the receiver according to the packet, and resetting the receiver and not resetting the first transmitter after the reset procedure is triggered.

Claims

1. A method for handing reset in a first communications device of a wireless communications system, the first communications device comprising a first transmitter and a receiver, the method comprising:

receiving a packet from a second communications device by the receiver;

triggering a reset procedure by the receiver when a protocol error is detected by the receiver according to the packet; and

resetting the receiver and not resetting the first transmitter after the reset procedure is triggered

wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered comprises stopping a Timer_Status_Periodic timer and a Timer_Status_Prohibit timer.

2. The method of claim 1, wherein triggering the reset procedure by the receiver comprises outputting a reset request packet to the second communications device to request the second communications device to reset a second transmitting side of the second communications device and send a reset packet with a field indicating a hyper frame number to be used by the second communications device in a next transmission.

3. The method of claim 1, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered comprises stopping receiving any data packet.

4. The method of claim 1, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered comprises receiving control packets corresponding to the first transmitter.

5. The method of claim 1, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered comprises discarding acknowledgment signals corresponding to the receiver.

6. The method of claim 1 further comprising reporting a reset acknowledgment packet, which does not contain a field to indicate a hyper frame number to be used by the first transmitter in a next transmission.

7. The method of claim 1. wherein the first communications device is operated in an acknowledged mode.

8. The method of claim 1, wherein the first communications device is a user equipment.

9. The method of claim 1, wherein the first communications device is a network device.

10. A first communications device of a wireless communications system utilized for accurately handling reset comprising:

a control circuit for realizing functions of the communications device;

a processor installed in the control circuit for executing a program code to operate the control circuit; and

a memory coupled to the processor for storing the program code;

wherein the program code comprises;

forming a first transmitter and a receiver;

receiving a packet from a second communications device by the receiver;

triggering a reset procedure by the receiver when a protocol error is detected by the receiver according to the packet; and

resetting the receiver and not resetting the first transmitter after the reset procedure is triggered

wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered in the program code comprises stopping a Timer_Status_Periodic timer and a Timer_Status_Prohibit timer.

11. The first communications device of claim 10, wherein triggering the reset procedure by the receiver in the program code comprises outputting a reset request packet to the second communications device to request the second communications device to reset a second transmitting side of the second communications device and send a reset packet with a field indicating a hyper frame number to be used by the second communications device in a next transmission.

12. The first communications device of claim 10, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered in the program code comprises stopping receiving any data packet.

13. The first communications device of claim 10, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered in the program code comprises receiving control packets corresponding to the first transmitter.

14. The first communications device of claim 10, wherein resetting the receiver and not resetting the first transmitter after the reset procedure is triggered in the program code comprises discarding acknowledgment signals corresponding to the receiver.

15. The first communications device of claim 10, wherein the program code further comprises reporting a reset acknowledgment packet, which does not contain a field to indicate a hyper frame number to be used by the first transmitter in a next transmission.

16. The first communications device of claim 10 operated in an acknowledged mode.

17. The first communications device of claim 10 being a user equipment.

18. The first communications device of claim 10 being a network device.