Uplink multi-bits acknowledgement for self contained transmissions

Patent metadata

Field	Value
Publication number	US-10367624-B2
Application number	US-201815906638-A
Country	US
Kind code	B2
Filing date	Feb 27, 2018
Priority date	Mar 1, 2017
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

Aspects described herein relate to communicating feedback in wireless communications. A user equipment (UE) can receive, in a downlink portion of a slot, data communications from a base station, where the data communications comprise multiple code blocks received in one or more downlink symbols. The UE can generate one or more feedback bits to provide feedback for the multiple code blocks. The UE can transmit, to the base station and in an uplink portion of the slot, an indication of the one or more feedback bits.

First claim

What is claimed is:

1. A method for communicating feedback in wireless communications, comprising:
receiving, at a user equipment (UE) and in a downlink portion of a slot, data communications from a base station, wherein the data communications comprise multiple code blocks received in one or more downlink symbols;
generating, by the UE, one or more feedback bits to provide feedback for the multiple code blocks; and
transmitting, from the UE to the base station and in an uplink portion of the slot, an indication of the one or more feedback bits, wherein transmitting the indication of the one or more feedback bits further comprises:
transmitting, in an uplink symbol of the uplink portion of the slot, at least a portion of the one or more feedback bits; and
transmitting, in a last uplink symbol of the uplink portion of the slot, a single feedback bit to represent at least a remaining portion of the one or more feedback bits.

2. The method of claim 1 , wherein the uplink portion of the slot comprises an uplink short burst transmitted over one or more uplink symbols, and wherein the one or more uplink symbols are orthogonal frequency division multiplexing (OFDM) symbols.

3. The method of claim 1 , wherein the portion of the one or more feedback bits correspond to data communications in the one or more downlink symbols that do not include a last downlink symbol of the downlink portion of the slot, and wherein the remaining portion of the one or more feedback bits correspond to data communications in the last downlink symbol of the one or more downlink symbols of the downlink portion of the slot.

4. The method of claim 1 , further comprising multiplexing the remaining portion of the one or more feedback bits as the indication of the one or more feedback bits by using a repetition feedback bit.

5. The method of claim 1 , further comprising encoding the portion of the one or more feedback bits as the indication of the one or more feedback bits by using a Polar code or a Reed-Muller code.

6. The method of claim 1 , wherein each of the one or more downlink symbols includes only full code blocks corresponding to portions of the multiple code blocks.

7. The method of claim 6 , wherein the indication of the one or more feedback bits comprises one bit for each of the one or more downlink symbols to indicate the feedback for the multiple code blocks in the one or more downlink symbols.

8. The method of claim 1 , wherein at least one of the one or more downlink symbols includes a partial code block that spans multiple symbols.

9. An apparatus for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to:
receive, in a downlink portion of a slot, data communications from a base station, wherein the data communications comprise multiple code blocks received in one or more downlink symbols;
generate one or more feedback bits to provide feedback for the multiple code blocks; and
transmit, to the base station and in an uplink portion of the slot, an indication of the one or more feedback bits at least in part by:
transmitting, in an uplink symbol of the uplink portion of the slot, at least a portion of the one or more feedback bits; and
transmitting, in a last uplink symbol of the uplink portion of the slot, a single feedback bit to represent at least a remaining portion of the one or more feedback bits.

10. The apparatus of claim 9 , wherein the uplink portion of the slot comprises an uplink short burst transmitted over one or more uplink symbols, and wherein the one or more uplink symbols are orthogonal frequency division multiplexing (OFDM) symbols.

11. The apparatus of claim 9 , wherein the portion of the one or more feedback bits correspond to data communications in the one or more downlink symbols that do not include a last downlink symbol of the downlink portion of the slot, and wherein the remaining portion of the one or more feedback bits correspond to data communications in the last downlink symbol of the one or more downlink symbols of the downlink portion of the slot.

12. The apparatus of claim 9 , wherein the one or more processors are further configured to multiplex the remaining portion of the one or more feedback bits as the indication of the one or more feedback bits by using a repetition feedback bit.

13. The apparatus of claim 9 , wherein the one or more processors are configured to encode the portion of the one or more feedback bits as the indication of the one or more feedback bits by using a Polar code or a Reed-Muller code.

14. The apparatus of claim 9 , wherein each of the one or more downlink symbols includes only full code blocks corresponding to portions of the multiple code blocks.

15. The apparatus of claim 14 , wherein the indication of the one or more feedback bits comprises one bit for each of the one or more downlink symbols to indicate the feedback for the multiple code blocks in the one or more downlink symbols.

16. The apparatus of claim 9 , wherein at least one of the one or more downlink symbols includes a partial code block that spans multiple symbols.

17. An apparatus for communicating feedback in wireless communications, comprising:
means for receiving, in a downlink portion of a slot, data communications from a base station, wherein the data communications comprise multiple code blocks received in one or more downlink symbols;
means for generating one or more feedback bits to provide feedback for the multiple code blocks; and
means for transmitting, to the base station and in an uplink portion of the slot, an indication of the one or more feedback bits at least in part by:
transmitting, in an uplink symbol of the uplink portion of the slot, at least a portion of the one or more feedback bits; and
transmitting, in a last uplink symbol of the uplink portion of the slot, a single feedback bit to represent at least a remaining portion of the one or more feedback bits.

18. The apparatus of claim 17 , wherein the uplink portion of the slot comprises an uplink short burst transmitted over one or more uplink symbols, and wherein the one or more uplink symbols are orthogonal frequency division multiplexing (OFDM) symbols.

19. The apparatus of claim 17 , wherein the portion of the one or more feedback bits correspond to data communications in the one or more downlink symbols that do not include a last downlink symbol of the downlink portion of the slot, and wherein the remaining portion of the one or more feedback bits correspond to data communications in the last downlink symbol of the one or more downlink symbols of the downlink portion of the slot.

20. The apparatus of claim 17 , further comprising means for multiplexing the remaining portion of the one or more feedback bits as the indication of the one or more feedback bits by using a repetition feedback bit.

21. The apparatus of claim 17 , further comprising means for encoding the portion of the one or more feedback bits as the indication of the one or more feedback bits by using a Polar code or a Reed-Muller code.

22. The apparatus of claim 17 , wherein each of the one or more downlink symbols includes only full code blocks corresponding to portions of the multiple code blocks, and wherein the indication of the one or more feedback bits comprises one bit for each of the one or more downlink symbols to indicate the feedback

Assignees

• Qualcomm Inc

Inventors

• Wang Renqiu
• Huang Yi
• Mukkavilli Krishna
• Ang Peter
• Xu Hao

Classifications

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L1/1896

  ARQ related signaling · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04W28/04

  Error control · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title