Modification periodicity for an uplink wakeup signal configuration

Patent metadata

Field	Value
Publication number	US-2026052477-A1
Application number	US-202519236549-A
Country	US
Kind code	A1
Filing date	Jun 12, 2025
Priority date	Aug 16, 2024
Publication date	Feb 19, 2026
Grant date	—

Abstract

Certain aspects of the present disclosure provide techniques for obtaining an uplink wakeup signal configuration from a first cell; obtaining an indication of a modification periodicity for the uplink wakeup signal configuration, the modification periodicity indicating a length of time for which the uplink wakeup signal configuration is valid; and sending, to a second cell, an uplink wakeup signal in accordance with the modification periodicity using the uplink wakeup signal configuration.

First claim

What is claimed is:

1 . An apparatus of a user equipment (UE) configured for wireless communications, comprising: one or more memories; and one or more processors coupled to the one or more memories and configured to cause the UE to:
obtain an uplink wakeup signal configuration from a first cell; obtain an indication of a modification periodicity for the uplink wakeup signal configuration, the modification periodicity indicating a length of time for which the uplink wakeup signal configuration is valid; and send, to a second cell, an uplink wakeup signal in accordance with the modification periodicity using the uplink wakeup signal configuration.

2 . The apparatus of claim 1 , wherein the length of time is a minimum length of time for which the uplink wakeup signal configuration is valid.

3 . The apparatus of claim 1 , wherein the one or more processors are configured to cause the UE to obtain an indication of a system information modification periodicity for the first cell, wherein the system information modification periodicity is different than the modification periodicity for the uplink wakeup signal configuration.

4 . The apparatus of claim 3 , wherein the system information modification periodicity has a first time length, the modification periodicity for the uplink wakeup signal configuration has a second time length, and the first time length is shorter than the second time length.

5 . The apparatus of claim 1 , wherein the indication of the modification periodicity indicates a hyper system frame number.

6 . The apparatus of claim 1 , wherein the indication indicates a distance threshold, wherein the distance threshold indicates a maximum movement distance of the UE.

7 . The apparatus of claim 6 , wherein the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration in association with having moved further than the maximum movement distance.

8 . The apparatus of claim 7 , wherein to cause the UE to discard the uplink wakeup signal configuration, the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration prior to an end of the length of time.

9 . The apparatus of claim 6 , wherein the one or more processors are configured to cause the UE to obtain an updated uplink wakeup signal configuration in accordance with having moved further than the maximum movement distance.

10 . The apparatus of claim 1 , wherein the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration in association with having moved further than a maximum movement distance.

11 . The apparatus of claim 1 , wherein the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration in association with moving outside of an area associated with the first cell.

12 . The apparatus of claim 11 , wherein to cause the UE to discard the uplink wakeup signal configuration, the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration prior to an end of the length of time.

13 . The apparatus of claim 11 , wherein the area comprises at least one of a tracking area or a radio access network notification area.

14 . The apparatus of claim 11 , wherein to cause the UE to discard the uplink wakeup signal configuration, the one or more processors are configured to cause the UE to discard the uplink wakeup signal configuration in response to receiving information indicating an area associated with a third cell.

15 . The apparatus of claim 1 , wherein the indication of the modification periodicity comprises a scaling factor for a system information modification periodicity, and wherein the one or more processors are configured to cause the UE to:
obtain a modification of the system information modification periodicity; and obtain a modification of the scaling factor such that the length of time is unchanged in association with the modification of the system information modification periodicity.

16 . The apparatus of claim 1 , wherein the indication is a first indication and the one or more processors are configured to cause the UE to obtain a second indication to obtain an updated uplink wakeup signal configuration, wherein the second indication is valid in association with being received prior to an end of the length of time.

17 . The apparatus of claim 16 , wherein the one or more processors are configured to cause the UE to obtain the updated uplink wakeup signal configuration after the end of the length of time.

18 . An apparatus of a network entity configured for wireless communications, comprising: one or more memories; and one or more processors coupled to the one or more memories and configured to cause the network entity to:
send an uplink wakeup signal configuration; and send an indication of a modification periodicity for the uplink wakeup signal configuration, the modification periodicity indicating a length of time for which the uplink wakeup signal configuration is valid.

19 . The apparatus of claim 18 , wherein the length of time is a minimum length of time for which the uplink wakeup signal configuration is valid.

20 . A method of wireless communications at a user equipment (UE), comprising:
obtaining an uplink wakeup signal configuration from a first cell; obtaining an indication of a modification periodicity for the uplink wakeup signal configuration, the modification periodicity indicating a length of time for which the uplink wakeup signal configuration is valid; and sending, to a second cell, an uplink wakeup signal in accordance with the modification periodicity using the uplink wakeup signal configuration.

Assignees

• Qualcomm Inc

Inventors

• Bedewy Ahmed
• Abedini Navid
• Luo Jianghong

Classifications

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04W52/0235 Primary

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

• H04W64/00 Primary

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title