Selecting a subset of automatic request retransmission processes

• US 20060056343A1
• Filed: 09/16/2004
• Published: 03/16/2006
• Est. Priority Date: 09/16/2004
• Status: Active Grant

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Hu, Teck, Yuan, Yifei
• Granted Patent: US 7,382,747 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0017 where the mode-switching is based on Quality of Service requirement
• CPC Class Codes: H04L 1/1803 Stop-and-wait protocols
• CPC Class Codes: H04L 1/1877 for semi-reliable protocols, e.g. for less sensitive applications like streaming video buffer level management for video bitstream control arrangements H04N21/44004

Abstract

The present invention provides a method of wireless telecommunication of according to an automatic repeat request protocol supporting a plurality of processes. The method includes selecting a subset of the plurality of processes based on a block size of at least one data packet, the subset comprising less than all of the plurality of processes.

Claims

1. A method of wireless telecommunication according to an automatic repeat request protocol supporting a plurality of processes, comprising:

selecting a subset of the plurality of processes based on a block size of at least one data packet, the subset comprising less than all of the plurality of processes.

2. The method of claim 1, comprising:

associating said at least one data packet with at least one of the subset of the plurality of processes; and

transmitting said at least one data packet using said at least one of the subset of the plurality of processes.

3. The method of claim 2, wherein associating said at least one data packet with said at least one of the subset of the plurality of processes comprises associating said at least one data packet with said at least one of the subset of the plurality of processes based on at least one of a traffic type of the data packet and a priority of the data packet.

4. The method of claim 2, wherein transmitting said at least one data packet using said at least one of the subset of the plurality of processes comprises autonomously transmitting said at least one data packet using said at least one of the subset of the plurality of processes.

5. The method of claim 4, wherein autonomously transmitting said at least one data packet using said at least one of the subset of the plurality of processes comprises autonomously transmitting said at least one data packet using said at least one of the subset of the plurality of processes at a minimum transport data rate when higher data rates have not been scheduled for an associated transmission time interval.

6. The method of claim 2, comprising:

selecting a first time slot; and

transmitting said at least one data packet in the first time slot using said at least one of the subset of the plurality of processes.

7. The method of claim 6, wherein selecting the first time slot comprises selecting the first time slot based upon at least one of a channel condition and a quality of service.

8. The method of claim 6, comprising receiving a negative acknowledgement in response to transmitting said at least one data packet.

9. The method of claim 8, comprising retransmitting said at least one data packet in a second time slot using said at least one of the subset of the plurality of processes in response to receiving the negative acknowledgement.

10. The method of claim 9, wherein retransmitting the data packet in the second time slot comprises selecting the second time slot based upon at least one of a channel condition and a quality of service.

11. The method of claim 1, wherein selecting the subset of the plurality of processes based on the block size comprises selecting the subset of the plurality of processes based on at least one of a minimum transport block size and a threshold block size.

12. The method of claim 1, wherein substantially no data packets are transmitted by the unselected processes.

13. The method of claim 1, wherein the automatic repeat request protocol is at least one of an Automatic Repeat Request (ARQ) protocol and a Hybrid Automatic Repeat Request (ARQ) protocol.

14. A method of wireless telecommunication of according to a Hybrid Automatic Repeat Request protocol supporting a plurality of processes, comprising:

selecting a subset of the plurality of processes based on a block size of at least one data packet, the subset comprising less than all of the plurality of processes;

associating the at least one data packet with at least one of the subset of the plurality of processes; and

transmitting the at least one data packet using the at least one of the subset of the plurality of processes.

15. The method of claim 14, wherein associating the at least one data packet with the at least one of the subset of the plurality of processes comprises associating the at least one data packet with the at least one of the subset of the plurality of processes based on at least one of a traffic type of the data packet and a priority of the data packet.

16. The method of claim 14, wherein transmitting the at least one data packet using the at least one of the subset of the plurality of processes comprises autonomously transmitting the at least one data packet using the at least one of the subset of the plurality of processes.

17. The method of claim 16, wherein autonomously transmitting the at least one data packet using the at least one of the subset of the plurality of processes comprises autonomously transmitting the at least one data packet using the at least one of the subset of the plurality of processes at a minimum transport data rate when higher data rates have not been scheduled for an associated transmission time interval.

18. The method of claim 14, wherein transmitting the at least one data packet using the at least one of the subset of the plurality of processes comprises:

selecting a first time slot; and

transmitting the at least one data packet in the first time slot using the at least one of the subset of the plurality of processes.

19. The method of claim 18, wherein selecting the first time slot comprises selecting the first time slot based upon at least one of a channel condition and a quality of service.

20. The method of claim 14, comprising receiving at least one negative acknowledgement in response to transmitting the at least one data packet.

21. The method of claim 20, comprising retransmitting the at least one data packet in a second time slot using the at least one of the subset of the plurality of processes in response to receiving the at least one negative acknowledgement.

22. The method of claim 21, wherein retransmitting the at least one data packet in the second time slot comprises selecting the second time slot based upon at least one of a channel condition and a quality of service.

23. The method of claim 14, wherein selecting the subset of the plurality of processes based on the block size comprises selecting the subset of the plurality of processes based on at least one of a minimum transport block size and a threshold block size.

24. The method of claim 14, wherein substantially no data packets are transmitted by the unselected processes.