Reverse link packet acknowledgement method

• US 20040109433A1
• Filed: 12/06/2002
• Published: 06/10/2004
• Est. Priority Date: 12/06/2002
• Status: Abandoned Application

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Khan, Farooq Ullah
• Application Number:
  US10/310,769
• Publication Number:
  US 20040109433A1
• Time in Patent Office: Days
• US Class Current: 370/345
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04W 52/262 taking into account adaptive modulation and coding [AMC] scheme AMC per se H04L1/0001
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/48 during retransmission after error or non-acknowledgment
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment

Abstract

In this method of managing packet transmission by a mobile, a forward control channel that includes scheduling information and acknowledgement information is transmitted. The scheduling information schedules transmission by a mobile and the acknowledgement information indicates successful or unsuccessful receipt of at least one packet sent by the mobile. A mobile then determines whether to transmit based on the scheduling information and determines whether to transmit a new packet or retransmit a previously sent packet based on the acknowledgement information.

Claims

1. A method of managing packet transmission by a mobile, comprising:

transmitting a forward control channel that includes scheduling information and acknowledgement information, the scheduling information scheduling transmission by a mobile and the acknowledgement information indicating successful or unsuccessful receipt of at least one packet sent by the mobile.

2. The method of claim 1, wherein the forward control channel includes scheduling and acknowledgement information for more than one mobile.

3. The method of claim 2, wherein the scheduling information includes a mobile identifier identifying the mobile scheduled to transmit, and the acknowledgment information being associated with the scheduling information such that the acknowledgement information pertains to at least one packet sent by the mobile identified by the mobile identifier.

4. The method of claim 3, wherein

packets are received from a mobile over more than one packet transmission channel;

and

the acknowledgement information indicates at least one packet transmission channel to which the acknowledgement information pertains.

5. The method of claim 4, wherein the acknowledgement information includes an ACK/NACK indication according to the HARQ protocol.

6. The method of claim 4, wherein the acknowledgement information further indicates which packet transmission channels are scheduled for a new transmission and which packet transmission channels are scheduled for a re-transmission.

7. The method of claim 4, wherein the forward control channel includes a packet format indicator in association with each mobile identifier to indicate a data rate and power level at which to transmit the scheduled packet.

8. The method of claim 3, wherein

packets are received from a mobile over more than one packet transmission channel, and

the acknowledgement information indicates successful or unsuccessful receipt of packets sent by the mobile over more than one packet transmission channel.

9. The method of claim 8, wherein the acknowledgement information further indicates which packet transmission channels are scheduled for a new transmission and which packet transmission channels are scheduled for a re-transmission.

10. The method of claim 8, wherein the acknowledgement information indicates successful or unsuccessful receipt of more than one packet sent over a same packet transmission channel.

11. The method of claim 10, wherein the acknowledgement information identifies a packet to which the acknowledgement information pertains by identifying a sequence number of the packet.

12. The method of claim 3, wherein the acknowledgement information indicates successful or unsuccessful receipt of more than one packet sent over a same packet transmission channel.

13. The method of claim 12, wherein the acknowledgement information identifies a packet to which the acknowledgement information pertains by identifying a sequence number of the packet.

14. The method of claim 1, wherein

packets are received from a mobile over more than one packet transmission channel;

and

the acknowledgement information indicates at least one packet transmission channel to which the acknowledgement information pertains.

15. The method of claim 1, wherein the forward control channel includes a packet format indicator in association with each mobile identifier to indicate a data rate and power level at which to transmit the scheduled packet.

16. The method of claim 15, wherein the acknowledgement information further indicates which packet transmission channels are scheduled for a new transmission and which packet transmission channels are scheduled for a re-transmission.

17. The method of claim 1, wherein the acknowledgement information identifies a packet to which the acknowledgement information pertains by identifying a sequence number of the packet.

18. The method of claim 1, wherein the generating step generates the forward control channel to include a packet format indicator to indicate a data rate and power level at which to transmit the scheduled packet.

19. The method of claim 1, further comprising:

generating the forward control channel.

20. A method of managing packet transmission by a mobile, comprising:

receiving a forward control channel that includes scheduling information and acknowledgement information, the scheduling information scheduling packet transmission by a mobile and the acknowledgement information indicating successful or unsuccessful receipt of at least one packet sent by the mobile; and

transmitting a packet based on the received scheduling and acknowledgement information.

21. The method of claim 20, wherein the transmitting step transmits at least one packet if the scheduling information indicates that the mobile is scheduled to transmit at least one packet and the mobile has at least one packet to send.

22. The method of claim 21, wherein the transmitting step transmits a new packet if the acknowledgement information indicates successful receipt of a packet sent by the mobile and the mobile has at least one packet to send.

23. The method of claim 22, wherein the transmitting step re-transmits a packet if the acknowledgement information indicates unsuccessful receipt of a packet sent by the mobile.

24. The method of claim 23, wherein the acknowledgement information is an ACK/NACK indication according to the HARQ protocol.

25. The method of claim 23, wherein

the acknowledgement information indicates at least one packet transmission channel to which the acknowledgement information pertains;

and

the transmitting step transmits over the indicated packet transmission channel if the scheduling information indicates that the mobile is scheduled to transmit and the mobile has at least one packet to send.

26. The method of claim 25, wherein the transmitting step transmits a new packet when the acknowledgement information indicates successful receipt of a packet sent by the mobile and the mobile has at least one packet to send.

27. The method of claim 25, wherein the transmitting step re-transmits a packet when the acknowledgement information indicates unsuccessful receipt of a packet sent by the mobile.

28. The method of claim 21, wherein the scheduling information indicates a mobile is scheduled to transmit a packet by including a mobile identifier of the mobile.

29. The method of claim 21, further comprising:

receiving a packet format information in association with the scheduling and acknowledgement information, the packet format information indicating a data rate and power level at which to transmit; and

wherein

the transmitting step transmits a packet at the indicated data rate and power level if the associated scheduling information indicates that the mobile is scheduled to transmit and the mobile has at least one packet to send.

30. The method of claim 21, wherein

the acknowledgement information indicates at least one packet transmission channel to which the acknowledgement information pertains;

and

the transmitting step transmits over the indicated packet transmission channels if the scheduling information indicates that the mobile is scheduled to transmit and the mobile has at least one packet to send.

31. The method of claim 30, wherein the transmitting step transmits a new packet when the acknowledgement information indicates successful receipt of a packet sent by the mobile and the mobile has a packet to send.

32. The method of claim 30, wherein the transmitting step re-transmits a packet when the acknowledgement information indicates unsuccessful receipt of a packet sent by the mobile.

33. The method of claim 30, wherein

the acknowledgement information indicates more than one packet transmission channel to which the acknowledgement information pertains;

and

the transmitting step transmits at least one packet over the indicated packet transmission channels if the scheduling information indicates that the mobile is scheduled to transmit and the mobile has packets to send.

34. The method of claim 30, wherein

the acknowledgement information includes acknowledgement information for more than one packet sent over a same packet transmission channel;

and

the transmitting step transmits more than one packet over at least one of the packet transmission channels if the scheduling information indicates that the mobile is scheduled to transmit and the mobile has packets to send.

35. The method of claim 30, wherein

the acknowledgement information includes acknowledgement information for more than one packet;

and

the transmitting step transmits more than one packet if the scheduling information indicates that the mobile is scheduled to transmit and the mobile has packets to send.

36. A method of managing packet transmission by a mobile, comprising:

transmitting a forward control channel that includes first scheduling information and second scheduling information, the first scheduling information scheduling transmission by a mobile and the second scheduling information indicating whether to transmit a new packet or retransmit a previously transmitted packet.

37. A method of managing packet transmission by a mobile, comprising:

receiving a forward control channel that includes first scheduling information and second scheduling information, the first scheduling information scheduling transmission by a mobile and the second scheduling information indicating whether to transmit a new packet or retransmit a previously transmitted packet; and

transmitting a packet based on the received first and second scheduling information.