Physical uplink control channel (pucch) resource selection

Patent metadata

Field	Value
Publication number	US-2021105764-A1
Application number	US-202017039335-A
Country	US
Kind code	A1
Filing date	Sep 30, 2020
Priority date	Oct 4, 2019
Publication date	Apr 8, 2021
Grant date	—

Abstract

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for physical uplink control channel (PUCCH) resource configuration. In one aspect, a base station may schedule a user equipment (UE) for PUCCH transmission based on a time division orthogonal cover code (TD-OCC) or a set of TD-OCCs, a cyclic shift step size or a set of cyclic shift step sizes, a first symbol or a set of first symbols, or a cyclic shift set. The base station may distinguish communications from that UE based on the TD-OCC or set of TD-OCCs, the cyclic shift step size or set of cyclic shift step sizes, the first symbol or set of first symbols, or the cyclic shift set.

First claim

What is claimed is:

1 . A method of wireless communication at a user equipment (UE), comprising:
receiving a physical uplink control channel (PUCCH) resource set index from a base station determining a PUCCH resource set, wherein:
a first symbol of the determined PUCCH resource set is based on a PUCCH resource index, or
a time division orthogonal cover code (TD-OCC) of the determined PUCCH resource set is based on the received PUCCH resource set index or the PUCCH resource index; and
transmitting uplink control information in a PUCCH based on the determined PUCCH resource set.

2 . The method of claim 1 , wherein the PUCCH resource set index corresponds to a configured PUCCH resource set having a set of TD-OCCs, wherein the TD-OCC of the determined PUCCH resource set is selected from the set of TD-OCCs based on the PUCCH resource index, and wherein the uplink control information is transmitted based on the TD-OCC of the determined PUCCH resource set.

3 . (canceled)

4 . The method of claim 1 , wherein:
a cyclic shift set of the determined PUCCH resource set is determined based on the PUCCH resource set index or the PUCCH resource index, the UE has a plurality of configured PUCCH resource sets having at least two cyclic shift sets, the two cyclic shift sets having no common values, the PUCCH resource set index corresponds to a configured PUCCH resource set of the plurality of configured PUCCH resource sets having a configured cyclic shift set that is one of the at least two cyclic shift sets having no common values, the cyclic shift set of the determined PUCCH resource set is determined to be the configured cyclic shift set, and the uplink control information is transmitted based on the cyclic shift set of the determined PUCCH resource set.

5 - 7 . (canceled)

8 . The method of claim 1 , wherein the PUCCH resource set index corresponds to a configured PUCCH resource set having a set of first symbol options, wherein the first symbol of the determined PUCCH resource set is selected from the set of first symbol options based on the PUCCH resource index, and wherein the uplink control information is transmitted based on the first symbol of the determined PUCCH resource.

9 . The method of claim 8 , wherein the configured PUCCH resource set has a configured number of symbols, and wherein each first symbol of the set of first symbol options is separated from the other first symbols of the set of first symbol options by at least a number of symbols equal to the configured number of symbols.

10 . The method of claim 8 , wherein the set of first symbol options includes four and ten, and wherein a configured number of symbols of the configured PUCCH resource set is four.

11 - 13 . (canceled)

14 . The method of claim 1 , wherein the PUCCH resource set includes an interlace index and the UE transmits the uplink control information in the PUCCH based on the interlace index.

15 - 20 . (canceled)

21 . The method of claim 1 , wherein the TD-OCC and the first symbol of the determined PUCCH resource set are determined based on the PUCCH resource set index or the PUCCH resource index.

22 . The method of claim 1 , wherein:
parameters of the PUCCH resource set provide X possible resource combinations, the PUCCH resource index has X+N possible values, a first X PUCCH resource indices are mapped to corresponding resource combinations, and the determining the PUCCH resource set based on the PUCCH resource index comprises receiving a PUCCH resource index having a value greater than X and determining the PUCCH resource based on the resource combination corresponding to the PUCCH resource set and PUCCH resource index.

23 . The method of claim 22 , wherein the received PUCCH resource index is K, K being greater than the X, and the determined PUCCH resource corresponds to the Kth PUCCH resource index.

24 - 25 . (canceled)

26 . An apparatus for wireless communication, comprising:
a first interface configured to obtain a physical uplink control channel (PUCCH) resource set index from a base station a processing system configured to determine a PUCCH resource set wherein:
a first symbol of the determined PUCCH resource set is based on a PUCCH resource set index, or
a time division orthogonal cover code (TD-OCC) of the determined PUCCH resource set is based on the received PUCCH resource set index or the PUCCH resource index; and
a second interface configured to output uplink control information in a PUCCH based on the determined PUCCH resource set.

27 . The apparatus of claim 26 , wherein the PUCCH resource set index corresponds to a configured PUCCH resource set having a set of TD-OCCs, wherein the TD-OCC of the determined PUCCH resource set is selected from the set of TD-OCCs based on the PUCCH resource index, and wherein the uplink control information is transmitted based on the TD-OCC of the determined PUCCH resource set.

28 . (canceled)

29 . The apparatus of claim 26 , wherein:
the processing system is further configured to determine a cyclic shift set of the determined PUCCH resource set based on the PUCCH resource set index or the PUCCH resource index, the UE has a plurality of configured PUCCH resource sets having at least two cyclic shift sets, the two cyclic shift sets having no common values, the PUCCH resource set index corresponds to a configured PUCCH resource set of the plurality of configured PUCCH resource sets having a configured cyclic shift set that is one of the at least two cyclic shift sets having no common values, the cyclic shift set of the determined PUCCH resource set is determined to be the configured cyclic shift set, and the uplink control information is transmitted based on the cyclic shift set of the determined PUCCH resource set.

30 - 32 . (canceled)

33 . The apparatus of claim 26 , wherein the PUCCH resource set index corresponds to a configured PUCCH resource set having a set of first symbol options, wherein the first symbol of the determined PUCCH resource set is selected from the set of first symbol options based on the PUCCH resource index, and wherein the uplink control information is transmitted based on the first symbol of the determined PUCCH resource.

34 . The apparatus of claim 33 , wherein the configured PUCCH resource set has a configured number of symbols, and wherein each first symbol of the set of first symbol options is separated from the other first symbols of the set of first symbol options by at least a number of symbols equal to the configured number of symbols.

35 . The apparatus of claim 33 , wherein the set of first symbol options includes four and ten, and wherein a configured number of symbols of the configured PUCCH resource set is four.

36 - 38 . (canceled)

39 . The apparatus of claim 26 , wherein the PUCCH resource set includes an interlace index and the UE transmits the uplink control information in the PUCCH based on the interlace index.

40 - 45 . (canceled)

46 . The apparatus of claim 26 , wherein the TD-OCC and the first symbol of the determined PUCCH resource set are determined based on the PUCCH resource set index or the PUCCH resource index.

47 . The apparatus of claim 26 , wherein:
parameters of the PUCCH resource set provide X possible resource combinations, the PUCCH resource index has X+N possible values, a first X PUCCH resource indices a

Assignees

• Qualcomm Inc

Inventors

• Datta Tanumay
• Bhattad Kapil
• Zhang Xiaoxia
• Sun Jing

Classifications

• H04L5/0017

  in which a distinct code is applied, as a temporal sequence, to each frequency · CPC title

• H04W72/1263

  Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L27/2607

  Cyclic extensions · CPC title