METHOD AND APPARATUS FOR ACKNOWLEDGEMENT SIGNALING

• US 20080192674A1
• Filed: 02/08/2008
• Published: 08/14/2008
• Est. Priority Date: 02/09/2007
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Wang, Haiming, Malkamaki, Esa, Jiang, Dajie
• Granted Patent: US 8,830,914 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04L 1/0035 evaluation of received explicit signalling
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1657 Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/40045 Details regarding the feeding of energy to the node from the bus
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel
• CPC Class Codes: H04L 49/40 Constructional details, e.g. power supply, mechanical construction or backplane
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04M 11/00 Telephonic communication systems specially adapted for combination with other electrical systems
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

An approach is provided for providing acknowledgement signaling. A transmission failure associated with data from a user equipment is determined. An allocation message is generated for signaling of the transmission failure to the user equipment. The allocation message provides allocation of resource for retransmission of the data.

Claims

1. A method comprising:

determining transmission failure associated with data from a user equipment; and

generating an allocation message for signaling the transmission failure to the user equipment, wherein the allocation message provides allocation of resource for retransmission of the data.

2. A method according to claim 1, wherein the retransmission is according to a Hybrid Automatic Repeat Request (HARQ) scheme.

3. A method according to claim 1, further comprising:

generating another allocation message that signals either a first transmission or a retransmission.

4. A method according to claim 1, wherein the allocation message requesting the retransmission is transmitted without an explicit negative acknowledgement message.

5. A method according to claim 1, wherein the allocation message includes one of a redundancy version field, a retransmission sequence number field, or a new data indicator field, the method further comprising:

setting either one of the redundancy version field, the retransmission sequence number field, or the new data indicator field to indicate that the allocation is for retransmission.

6. A method according to claim 1, further comprising:

detecting no retransmission of the data; and

generating another allocation message for signaling the retransmission of the data.

7. A method according to claim 1, wherein the user equipment utilizes a timer to specify life of the data within a buffer of the user equipment, the method further comprising:

transmitting the allocation message to the user equipment, wherein the data is deleted from the buffer after expiry of the timer.

8. A method according to claim 1, wherein the allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.

9. A method according to claim 1, further comprising:

transmitting the allocation message over a radio network to the user equipment using either physical layer signaling or medium access control signaling, wherein the network is compliant with a long term evolution (LTE) architecture.

10. A method according to claim 1, wherein the allocation message is transmitted over a physical downlink control channel (PDCCH) or a L1/L2 control channel.

11. A method according to claim 1, wherein the allocation message is cyclic redundancy check (CRC) protected.

12. A computer-readable medium bearing instructions for supporting signal transmission, said instructions, being arranged, upon execution, to cause one or more processors to perform the method of claim 1.

13. An apparatus comprising:

logic configured to determine transmission failure associated with data from a user equipment, and to generate an allocation message for signaling the transmission failure to the user equipment,

wherein the allocation message provides allocation of resource for retransmission of the data.

14. An apparatus according to claim 13, wherein the retransmission is according to a Hybrid Automatic Repeat Request (HARQ) scheme.

15. An apparatus according to claim 13, wherein the logic is further configured to generate another allocation message that signals either a first transmission or a retransmission.

16. An apparatus according to claim 13, wherein the allocation message includes one of a redundancy version field, a retransmission sequence number field, or a new data indicator field, the logic being further configured to set either one of the redundancy version field, the retransmission sequence number field, or the new data indicator field to indicate that the allocation is for retransmission.

17. An apparatus according to claim 13, wherein the logic is further configured to detect no retransmission of the data, and to generate another allocation message for signaling the retransmission of the data.

18. An apparatus according to claim 13, wherein the user equipment utilizes a timer to specify life of the data within a buffer of the user equipment, the apparatus further comprising:

a transceiver configured to transmit the allocation message to the user equipment, wherein the data is deleted from the buffer after expiry of the timer.

19. An apparatus according to claim 13, wherein the allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.

20. An apparatus according to claim 13, further comprising:

a transceiver configured to transmit the allocation message over a radio network to the user equipment using either physical layer signaling or medium access control signaling, wherein the network is compliant with a long term evolution (LTE) architecture.

21. An apparatus according to claim 13, wherein the allocation message is transmitted over a physical downlink control channel (PDCCH) or a L1/L2 control channel.

22. An apparatus according to claim 13, wherein the allocation message is cyclic redundancy check (CRC) protected.

23. A method comprising:

receiving an allocation message from a network element over a network for allocation of resource for a retransmission or a new transmission; and

retransmitting the data in response to the received allocation message for the retransmission if the allocation message specifies the retransmission.

24. A method according to claim 23, wherein the retransmission is according to a Hybrid Automatic Repeat Request (HARQ) scheme.

25. A method according to claim 23, wherein the allocation message includes one of a redundancy version field, a retransmission sequence number field, or a new data indicator field, and either one of the redundancy version field, the retransmission sequence number field, or the new data indicator field is set to indicate that the allocation is for retransmission.

26. A method according to claim 23, further comprising:

setting a timer to specify life of the data within a buffer, wherein the data is deleted from a buffer after expiry of the timer if an allocation message for the new transmission is not received before the expiry.

27. A method according to claim 23, wherein the allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.

28. A method according to claim 23, wherein the allocation message is received over the network according to either physical control channel signaling or medium access control signaling, the network being compliant with a long term evolution (LTE) architecture.

29. A method according to claim 23, wherein the allocation message is cyclic redundancy check (CRC) protected.

30. A computer-readable medium bearing instructions for supporting signal transmission, said instructions, being arranged, upon execution, to cause one or more processors to perform the method of claim 23.

31. An apparatus comprising:

a transceiver configured to receive an allocation message from a network element over a network for allocation of resource for a retransmission or a new transmission; and

a processor coupled to the transceiver and configured to initiate retransmission of the data in response to the received allocation message for the retransmission if the allocation message specifies the retransmission.

32. An apparatus according to claim 31, wherein the retransmission is according to a Hybrid Automatic Repeat Request (HARQ) scheme.

33. An apparatus according to claim 31, wherein the allocation message includes one of a redundancy version field, a retransmission sequence number field, or a new data indicator field, and either one of the redundancy version field, the retransmission sequence number field, or the new data indicator field is set to indicate that the allocation is for retransmission.

34. An apparatus according to claim 31, further comprising:

a buffer configured to store the data; and

a timer configured to specify life of the data within the buffer, wherein the data is deleted from a buffer after expiry of the timer it an allocation message for the new transmission is not received before the expiry.

35. An apparatus according to claim 31, wherein the allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.

36. An apparatus according to claim 31, wherein the allocation message is received over the network according to either physical control channel signaling or medium access control signaling, the network being compliant with a long term evolution (LTE) architecture.

37. An apparatus according to claim 31, wherein the allocation message is cyclic redundancy check (CRC) protected.

38. An apparatus according to claim 31, wherein the network element is a base station and the apparatus is a user equipment.