# US 11,445,443 B2 · Method, user equipment, base station, and readable storage medium for transmitting wake-up signal

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- Number: US 11,445,443 B2
- Document ID: US11445443B2
- Status: Granted
- Kind: B2
- Application number: 16/586,259
- Filed: 2019-09-27
- Published: 2020-04-02
- Granted: 2022-09-13
- Earliest claimed: 2018-09-27
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Min Wu; Feifei Sun; Miao Zhou; Chen Qian
- Web page: https://patentgrep.com/patent/US11445443B2

## CPC

- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 52/0219: {where the power saving management affects multiple terminals}
- H04W 68/025: {Indirect paging}
- H04W 68/10: using simulcast notification
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Embodiments of the present application provide a method, a user equipment (UE), a base station, and a readable storage medium for transmitting a wake-up signal (WUS). The method is performed by the UE, and includes: receiving configuration information of a UE group WUS; determining the WUS corresponding to the UE group to which the UE belongs according to the configuration information of the UE group WUS; and monitoring the WUS corresponding to the UE group to which the UE belongs. The solutions of the embodiments of the present application may further reduce power consumption of the UE compared with the prior art.

## Claims

### Claim 1

A method for monitoring a wake-up signal (WUS) by a user equipment (UE), the method comprising:
receiving first information on a UE group WUS and second information on a common WUS in a system information block (SIB);
determining a first paging cycle and the UE group WUS corresponding to a UE group to which the UE belongs among a plurality of UE groups based on the first information;
determining a maximum duration for monitoring the UE group WUS based on a value corresponding to a ratio configured in the first information;
determining a second paging cycle based on a monitoring cycle of the common WUS included in the second information and a third paging cycle of paging occasion (PO);
monitoring the common WUS which is used to wake up all UEs monitoring a same WUS resource based on the second paging cycle;
in response to detecting the common WUS, monitoring at least one first PO based on the third paging cycle;
in response to not detecting the common WUS, monitoring the UE group WUS based on the maximum duration and the first paging cycle; and
in response to detecting the UE group WUS, monitoring at least one second PO based on the third paging cycle.

### Claim 2 (depends on 1)

The method of claim 1, wherein the common WUS is configured to be a non-legacy WUS.

### Claim 3 (depends on 1)

The method of claim 1,
wherein the first information includes information on a number of the plurality of UE groups, and
wherein the number of the plurality of UE groups is associated to a gap between the UE group WUS and the at least one second PO.

### Claim 4 (depends on 3)

The method of claim 3, wherein the number of the plurality of UE groups is configured for each of a discontinuous reception (DRX) UE and an extended discontinuous reception (eDRX) UE.

### Claim 5 (depends on 1)

The method of claim 1, wherein a plurality of WUSs are multiplexed by code division multiplexing (CDM) on WUS resource associated with the UE group WUS.

### Claim 6 (depends on 1)

The method of claim 1,
wherein the UE group is grouped based on a UE identity (ID), and
wherein an ID of the UE group is used as a parameter to generate WUS sequence.

### Claim 7 (depends on 1)

The method of claim 1, wherein the determining the UE group WUS comprises:
determining applicable gap between a WUS resource associated with the UE group WUS and the at least one second PO based on the first information;
selecting at least one WUS set comprising the UE group WUS based on the determined applicable gap; and
selecting the UE group WUS based on the at least one selected WUS set.

### Claim 8

A user equipment (UE) for monitoring a wake-up signal (WUS), the UE comprising:
a transceiver; and
a processor configured to:
control the transceiver to receive first information on a UE group WUS and second information on a common WUS in a system information block (SIB),
determine a first paging cycle and the UE group WUS corresponding to a UE group to which the UE belongs among a plurality of UE groups based on the first information,
determine a maximum duration for monitoring the UE group WUS based on a value corresponding to a ratio configured in the first information,
determine a second paging cycle based on a monitoring cycle of the common WUS included in the second information and a third paging cycle of paging occasion (PO),
monitor the common WUS which is used to wake up all UEs monitoring a same WUS resource based on the second paging cycle,
in response to the common WUS being detected, monitor at least one first PO based on the third paging cycle,
in response to the common WUS not being detected, monitor the UE group WUS based on the maximum duration and the first paging cycle, and
in response to the UE group WUS being detected, monitoring at least one second PO based on the third paging cycle.

### Claim 9 (depends on 8)

The UE of claim 8,
wherein the first information includes information on a number of the plurality of UE groups, and
wherein the number of the plurality of UE groups is associated to a gap between the UE group WUS and the at least one second PO.

### Claim 10 (depends on 9)

The UE of claim 9, wherein the number of the plurality of UE groups is configured for each of a discontinuous reception (DRX) UE and an extended discontinuous reception (eDRX) UE.

### Claim 11 (depends on 8)

The UE of claim 8, wherein a plurality of WUSs are multiplexed by code division multiplexing (CDM) on WUS resource associated with the UE group WUS.

### Claim 12 (depends on 8)

The UE of claim 8,
wherein the UE group is grouped based on a UE identity (ID), and
wherein an ID of the UE group is used as a parameter to generate WUS sequence.

### Claim 13 (depends on 8)

The UE of claim 8, wherein the processor is configured to:
determine applicable gap between a WUS resource associated with the UE group WUS and the at least one second PO based on the first information,
select at least one WUS set comprising the UE group WUS based on the determined applicable gap, and
select the UE group WUS based on the at least one selected WUS set.