Method and apparatus for acknowledgement signaling
View Patent ↗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.
1. A method comprising:
receiving a resource allocation message, the resource allocation message comprising a first indication that resource allocation is intended for a first transmission of data or a second, different indication that the resource allocation is intended for retransmission of the data; and
retransmitting the data in response to the received resource allocation message comprising the second indication,
wherein an explicit acknowledgment/negative acknowledgment signaling sent regarding the data is ignored;
wherein the first indication or the second indication is sent on a physical downlink control channel (PDCCH), and
wherein the explicit acknowledgment/negative acknowledgment signaling is sent on a Physical Hybrid Automatic Repeat Request (HARQ) indication channel (PHICH).
2. The method according to claim 1 , wherein the first transmission and retransmission are according to a Hybrid Automatic Repeat Request (HARQ) scheme.
3. The method according to claim 1 , further comprising:
determining unsuccessful first transmission of the data upon receiving the resource allocation message with the second indication that the allocation of resources is intended for retransmission of the data.
4. The method according to claim 1 , the method further comprising:
determining to delete the data from a buffer storing the data after a timer, configured to specify life of the data within the buffer, expires and the resource allocation message is not received before the timer expires.
5. The method according to claim 1 , wherein the resource allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.
6. The method according to claim 1 , wherein the resource allocation message is transmitted over a radio network and wherein the radio network is compliant with a long term evolution (LTE) architecture.
7. The method according to claim 1 , wherein the resource allocation message is cyclic redundancy check (CRC) protected.
8. The method according to claim 1 , wherein the resource allocation message utilizes a New Data Indicator (NDI) field to specify the first indication or the second indication.
9. A non-transitory computer-readable storage medium bearing instructions for supporting signal transmission, said instructions, being arranged, upon execution, to cause one or more processors to least perform the following steps:
receiving a resource allocation message, the resource allocation message comprising a first indication that resource allocation is intended for a first transmission of data or a second, different indication that the resource allocation is intended for retransmission of the data; and
retransmitting the data in response to the received resource allocation message comprising the second indication,
wherein an explicit acknowledgment/negative acknowledgment signaling sent regarding the data is ignored;
wherein the first indication or the second indication is sent on a physical downlink control channel (PDCCH), and
wherein the explicit acknowledgment/negative acknowledgment signaling is sent on a Physical Hybrid Automatic Repeat Request (HARQ) indication channel (PHICH).
10. An apparatus comprising:
a wireless device configured to receive a resource allocation message, the resource allocation message comprising a first indication that resource allocation is intended for a first transmission of data or a second, different indication that the resource allocation is intended for retransmission of the data,
wherein the wireless device is further configured to retransmit the data in response to the received resource allocation message comprising the second indication, and
wherein the wireless device ignores an explicit acknowledgment/negative acknowledgment signaling sent regarding the data;
wherein the first indication or the second indication is sent on a physical downlink control channel (PDCCH), and
wherein the explicit acknowledgment/negative acknowledgment signaling is sent on a Physical Hybrid Automatic Repeat Request (HARQ) indication channel (PHICH).
11. The apparatus according to claim 10 , wherein the first transmission and retransmission are according to a Hybrid Automatic Repeat Request (HARQ) scheme.
12. The apparatus according to claim 10 , wherein unsuccessful first transmission of the data is determined to occur upon the wireless device receiving the resource allocation message with the second indication that the allocation of resources is intended for retransmission of the data.
13. The apparatus according to claim 10 , further comprising:
a buffer that stores the data; and a timer configured to specify life of the data within the buffer, wherein the data packet is deleted from the buffer after the timer expires and the resource allocation message is not received before the timer expires.
14. The apparatus according to claim 10 , wherein the resource allocation message is generated according to either a dynamic scheduling scheme or a semi-persistent scheduling scheme.
15. The apparatus according to claim 10 , wherein the resource allocation message is transmitted over a radio network and wherein the radio network is compliant with a long term evolution (LTE) architecture.
16. The apparatus according to claim 10 , wherein the resource allocation message is cyclic redundancy check (CRC) protected.
17. The apparatus according to claim 10 , wherein the resource allocation message utilizes a New Data Indicator (NDI) field to specify the first indication or the second indication.
18. The apparatus according to claim 10 , wherein the wireless device is a user equipment.