Multi-user wake-up signal

Patent metadata

Field	Value
Publication number	US-11356946-B2
Application number	US-202016860871-A
Country	US
Kind code	B2
Filing date	Apr 28, 2020
Priority date	May 2, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a multi-UE wake-up signal in a downlink control information (DCI) communication. The DCI communication may include a set of content field groups. The UE may identify a content field group of the set of content field groups that is to be read by the UE, and determine a behavior associated with performing a UE wake-up operation based at least in part on the identified content field group. Numerous other aspects are provided.

First claim

What is claimed is:

1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a base station, a multiple UE (multi-UE) wake-up signal in a downlink control information (DCI) communication based at least in part on a bitmap scheme associated with a set of wake-up indicator fields included in the DCI communication, the DCI communication further including a set of content field groups;
identifying a content field group of the set of content field groups that is to be read by the UE; and
determining, based at least in part on the identified content field group, a behavior associated with performing a UE wake-up operation.

2. The method of claim 1 , wherein the content field group includes information associated with at least one of:
a bandwidth part associated with performing the UE wake-up operation;
a channel state information (CSI) request associated with performing the UE wake-up operation; or
a primary cell or secondary cell indication associated with performing the UE wake-up operation.

3. The method of claim 1 , wherein the DCI communication includes one or more padding bits.

4. The method of claim 1 , wherein the DCI communication includes a set of cyclic redundancy check (CRC) bits that is scrambled by a wake-up radio network temporary identifier (RNTI).

5. The method of claim 1 , wherein identifying the content field group comprises:
identifying the content field group based at least in part on information included in a set of wake-up indicator fields included in the DCI communication.

6. The method of claim 5 , wherein the information included in the set of wake-up indicator fields is a number of occurrences of a particular value in a portion of the set of wake-up indicator fields that precedes a portion of the set of wake-up indicator fields corresponding to the multi-UE wake-up signal.

7. The method of claim 1 , wherein identifying the content field group comprises:
identifying the content field group based at least in part on a field group index that is configured on the UE.

8. The method of claim 1 , wherein the behavior indicates that the UE is to transmit a channel state information (CSI) report, and wherein the method further comprises:
identifying a set of resources in which to transmit the CSI report; and
transmitting the CSI report in the set of resources.

9. The method of claim 8 , wherein identifying the set of resources comprises identifying the set of resources based at least in part on at least one of:
a radio resource control (RRC) configuration;
a configured grant;
a default configuration; or
a partial grant included in the DCI communication.

10. The method of claim 1 , further comprising:
determining a wake-up radio network temporary identifier (RNTI) associated with the UE,
wherein the wake-up RNTI is determined based at least in part on:
another RNTI associated with the UE,
a cell identifier,
a cell group identifier, or
a bandwidth part identifier; and

receiving the DCI communication based at least in part on the wake-up RNTI.

11. The method of claim 10 , wherein the wake-up RNTI is a cell group-level wake-up RNTI.

12. The method of claim 1 , wherein at least one of:
the UE wake-up operation includes enabling monitoring of a physical downlink control channel (PDCCH) in association with receiving or transmitting a communication in an upcoming discontinuous reception (DRX) cycle on-duration, or
the behavior includes monitoring a particular bandwidth part or transmitting a channel state information (CSI) report.

13. A user equipment (UE), comprising:
one or more memories; and
one or more processors coupled to the one or more memories, configured to:
receive, from a base station, a multiple UE (multi-UE) wake-up signal in a downlink control information (DCI) communication based at least in part on a bitmap scheme associated with a set of wake-up indicator fields included in the DCI communication, the DCI communication further including a set of content field groups;
identify a content field group of the set of content field groups that is to be read by the UE; and
determine, based at least in part on the identified content field group, a behavior associated with performing a UE wake-up operation.

14. The UE of claim 13 , wherein the content field group includes information associated with at least one of:
a bandwidth part associated with performing the UE wake-up operation;
a channel state information (CSI) request associated with performing the UE wake-up operation; or
a primary cell or secondary cell indication associated with performing the UE wake-up operation.

15. The UE of claim 13 , wherein the DCI communication includes one or more padding bits.

16. The UE of claim 13 , wherein the DCI communication includes a set of cyclic redundancy check (CRC) bits that is scrambled by a wake-up radio network temporary identifier (RNTI).

17. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive, from a base station, a multiple UE (multi-UE) wake-up signal in a downlink control information (DCI) communication based at least in part on a bitmap scheme associated with a set of wake-up indicator fields included in the DCI communication, the DCI communication further including a set of content field groups;
identify a content field group of the set of content field groups that is to be read by the UE; and
determine, based at least in part on the identified content field group, a behavior associated with performing a UE wake-up operation.

18. The non-transitory computer-readable medium of claim 17 , wherein the content field group includes information associated with at least one of:
a bandwidth part associated with performing the UE wake-up operation;
a channel state information (CSI) request associated with performing the UE wake-up operation; or
a primary cell or secondary cell indication associated with performing the UE wake-up operation.

19. The non-transitory computer-readable medium of claim 17 , wherein the DCI communication includes one or more padding bits, or wherein the DCI communication includes a set of cyclic redundancy check (CRC) bits that is scrambled by a wake-up radio network temporary identifier (RNTI).

20. The non-transitory computer-readable medium of claim 17 , wherein identifying the content field group comprises:
identifying the content field group based at least in part on a field group index that is configured on the UE.

21. The non-transitory computer-readable medium of claim 17 , wherein the one or more instructions further cause the UE to:
determine a wake-up radio network temporary identifier (RNTI) associated with the UE,
wherein the wake-up RNTI is determined based at least in part on:
another RNTI associated with the UE,
a cell identifier,
a cell group identifier, or
a bandwidth part identifier; and

receive the DCI communication based at least in part on the wake-up RNTI.

22. An apparatus for wireless communication, comprising:
means for receiving, from a base station, a multiple UE (multi-UE) wake-up signal in a downlink control information (DCI) communication based at least in part on a bitmap scheme associated with a set of wake-up indicator fields included in the DCI communication, the DCI communicati

Assignees

• Qualcomm Inc

Inventors

• Sarkis Gabi
• Ang Peter Pui Lok
• Nam Wooseok
• Ly Hung Dinh
• Chen Wanshi
• Awoniyi-Oteri Olufunmilola Omolade
• Gaal Peter
• Luo Tao

Classifications

• Y02D30/70

  in wireless communication networks · CPC title

• H04W52/0219 Primary

  where the power saving management affects multiple terminals · CPC title

• H04W52/0235 Primary

  where the received signal is a power saving command · CPC title

• H04W68/025

  Indirect paging · CPC title

• H04W88/02

  Terminal devices · CPC title