Method and system for dynamic ACK/NACK repetition for robust downlink MAC PDU transmission in LTE
A method and apparatus for dynamic acknowledgement repetition for a downlink medium access control packet data unit transmission ‘MAC PDU’ requiring multiple acknowledgements, the method having the steps of: receiving the downlink MAC PDU requiring multiple acknowledgements; and utilizing a differentiating factor and acknowledgement scheme, sending the multiple acknowledgements.
1. A method, comprising:
receiving, at a User Equipment (UE), a message regarding a second differentiating factor;
transmitting, by the UE, a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback using a first differentiating factor, wherein the first differentiating factor is determined based on a physical downlink control channel (PDCCH); and
transmitting, by the UE, a second ACK or NACK feedback using the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
2. The method of claim 1 , further comprising: transmitting a third ACK or NACK feedback using a third differentiating factor, wherein the third differentiating factor is a progression of the second differentiating factor.
3. The method of claim 1 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different cyclic shifts.
4. The method of claim 1 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different frequency blocks.
5. The method of claim 1 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on a location of the PDCCH.
6. The method of claim 1 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on an index associated with the PDCCH.
7. The method of claim 1 , wherein the first ACK or NACK feedback is a response to a single transmission of a Medium Access Control (MAC) Protocol Data Unit (PDU).
8. A user equipment comprising:
a receiver configured to receive a message regarding a second differentiating factor; and
a transmitter configured to transmit a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback using a first differentiating factor, wherein the first differentiating factor is determined based on a physical downlink control channel (PDCCH), and transmit a second ACK or NACK feedback using the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
9. The user equipment of claim 8 , the transmitter further configured to transmit a third ACK or NACK feedback using a third differentiating factor, wherein the third differentiating factor is a progression of the second differentiating factor.
10. The user equipment of claim 8 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different cyclic shifts.
11. The user equipment of claim 8 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different frequency blocks.
12. The user equipment of claim 8 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on a location of the PDCCH.
13. The user equipment of claim 8 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on an index associated with the PDCCH.
14. The user equipment of claim 8 , wherein the first ACK or NACK feedback is a response to a single transmission of a Medium Access Control (MAC) Protocol Data Unit (PDU).
15. A non-transitory computer-readable medium storing instructions which, when executed by one or more processors, cause a computing device to perform operations comprising:
receiving, at a user equipment (UE), a message regarding a second differentiating factor;
transmitting, by the UE, a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback using a first differentiating factor, wherein the first differentiating factor is determined based on a physical downlink control channel (PDCCH); and
transmitting, by the UE, a second ACK or NACK feedback using the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
16. The non-transitory computer-readable medium of claim 15 , the operations further comprising: transmitting a third ACK or NACK feedback using a third differentiating factor, wherein the third differentiating factor is a progression of the second differentiating factor.
17. The non-transitory computer-readable medium of claim 15 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different cyclic shifts.
18. The non-transitory computer-readable medium of claim 15 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different frequency blocks.
19. The non-transitory computer-readable medium of claim 15 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on a location of the PDCCH.
20. The non-transitory computer-readable medium of claim 15 , wherein the first ACK or NACK feedback is transmitted on a resource that is determined based on an index associated with the PDCCH.
21. A method, comprising:
transmitting, from an enhanced node B (eNB) to a user equipment (UE), a message regarding a second differentiating factor;
receiving, from the UE, a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback based on a first differentiating factor, wherein the first differentiating factor is based on a physical downlink control channel (PDCCH); and
receiving, from the UE, a second ACK or NACK feedback based on the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
22. The method of claim 21 , further comprising: receiving a third ACK or NACK feedback based on a third differentiating factor, wherein the third differentiating factor is a progression of the second differentiating factor.
23. The method of claim 21 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different cyclic shifts.
24. The method of claim 21 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different frequency blocks.
25. The method of claim 21 , wherein the first ACK or NACK feedback is received on a resource that is determined based on a location of the PDCCH.
26. The method of claim 21 , wherein the first ACK or NACK feedback is received on a resource that is determined based on an index associated with the PDCCH.
27. The method of claim 21 , wherein the first ACK or NACK feedback is a response to a single transmission of a Medium Access Control (MAC) Protocol Data Unit (PDU).
28. An enhanced node B (eNB) comprising:
a transmitter configured to transmit a message regarding a second differentiating factor to a user equipment (UE); and
a receiver configured to receive, from the UE, a first acknowledgement (ACK) or negative acknowledgement (NACK) feedback based on a first differentiating factor, wherein the first differentiating factor is based on a physical downlink control channel (PDCCH), and receive, from the UE, a second ACK or NACK feedback based on the second differentiating factor, wherein the second differentiating factor is a cyclic shift.
29. The eNB of claim 28 , the receiver further configured to receive a third ACK or NACK feedback based on a third differentiating factor, wherein the third differentiating factor is a progression of the second differentiating factor.
30. The eNB of claim 28 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different cyclic shifts.
31. The eNB of claim 28 , wherein the first ACK or NACK feedback and the second ACK or NACK feedback are transmitted using different frequency blocks.
32. The eNB of claim 28 , wherein the first ACK or NACK feedback is received on a resource that is determined based on a location of the PDCCH.
33. The eNB of claim 28 , wherein the first ACK or NACK feedback is received on a resource that is determined based on an index associated with the PDCCH.
34. The eNB of claim 28 , wherein the first ACK or NACK feedback is a response to a single transmission of a Medium Access Control (MAC) Protocol Data Unit (PDU).