# US 11,109,312 B2 · Dynamic group wake-up reconfiguration

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- Number: US 11,109,312 B2
- Document ID: US11109312B2
- Status: Granted
- Kind: B2
- Application number: 16/934,467
- Filed: 2020-07-21
- Published: 2021-02-11
- Granted: 2021-08-31
- Earliest claimed: 2019-08-09
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Wooseok Nam; Tao Luo; Wanshi Chen; Juan Montojo
- Web page: https://patentgrep.com/patent/US11109312B2

## CPC

- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 52/0235: {where the received signal is a power saving command}
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 68/025: {Indirect paging}
- 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

According to an example, a method of wireless communication comprises receiving a group wake-up signal configuration corresponding to a group of UEs that share a wake-up signal associated with a discontinuous reception operation, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the wake-up signal or the discontinuous reception operation. The method further includes transmitting a wake-up configuration update triggering message, receiving a group wake-up signal configuration update message including at least one new wake-up parameter, and performing the discontinuous reception operation based on the at least one new wake-up parameter. A corresponding method of wireless communication at a base station is also described.

## Claims

### Claim 1

A method of wireless communication at a user equipment (UE), comprising:
receiving a group wake-up signal configuration corresponding to a group of UEs that share a wake-up signal associated with a discontinuous reception operation, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the wake-up signal or the discontinuous reception operation;
transmitting a wake-up configuration update triggering message;
receiving a group wake-up signal configuration update message including at least one new wake-up parameter; and
performing the discontinuous reception operation based on the at least one new wake-up parameter.

### Claim 2 (depends on 1)

The method of claim 1, wherein receiving the group wake-up signal configuration comprises receiving a Layer 1 or Layer 2 signaling.

### Claim 3 (depends on 1)

The method of claim 1, wherein receiving the group wake-up signal configuration update message comprises receiving a Layer 1 or Layer 2 signaling.

### Claim 4 (depends on 1)

The method of claim 1, wherein receiving the group wake-up signal configuration update message comprises receiving at least one of:
a wake-up control signal;
one or more control signals different from the wake-up control signal and received outside of a wake-up signal occasion corresponding to the wake-up control signal;
one or more control signals having a scrambling code different from the wake-up control signal and received during the wake-up signal occasion corresponding to the wake-up control signal; or
a control element in a downlink payload associated with user data.

### Claim 5 (depends on 1)

The method of claim 1, further comprising receiving a group wake-up signal configuration corresponding to the new group of UEs, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the new wake-up signal or the new discontinuous reception operation, wherein the at least one new wake-up parameter comprises at least one of:
one or more of search space set, a control resource set, a bandwidth part, a cell, or a beam associated with the wake-up signal;
one or more of a discontinuous reception cycle periodicity or an offset value associated the discontinuous reception operation;
a wake-up group identifier associated with the wake-up signal;
a wake-up group scrambling code or radio network temporary identifier associated with the wake-up signal;
a wake-up signal size associated with the wake-up signal;
a wake-up information field position of a wake-up information field corresponding to the UE in the wake-up signal;
a wake-up information field size of the wake-up information field corresponding to the UE in the wake-up signal; or
a wake-up indicator position corresponding to the UE in the wake-up signal.

### Claim 6 (depends on 1)

The method of claim 1, wherein the at least one new wake-up parameter of the group wake-up signal configuration update message causes a re-mapping of the UE with respect to the group wake-up signal configuration corresponding to the group of UEs, or causes the UE to be re-grouped into a new group wake-up signal configuration corresponding to a new group of UEs that share a new wake-up signal associated with a new discontinuous reception operation.

### Claim 7 (depends on 1)

The method of claim 1,
wherein the group wake-up signal configuration comprises a first group wake-up signal configuration corresponding to a first group of UEs, a first configuration of the wake-up signal, and a first configuration of the discontinuous reception operation;
wherein the at least one new wake-up parameter of the group wake-up signal configuration update message identifies a second group wake-up signal configuration corresponding to a second group of UEs, a corresponding second configuration of the wake-up signal, and corresponding a second configuration of the discontinuous reception operation;
wherein performing the discontinuous reception operation comprises:
monitoring for the second configuration of the wake-up signal of the second group wake-up signal configuration corresponding to the second group of UEs.

### Claim 8 (depends on 7)

The method of claim 7,
wherein the first group wake-up signal configuration identifies a first set of wake-up parameters for at least one of the first configuration of the wake-up signal or the first configuration of the discontinuous reception operation;
wherein the second group wake-up group configuration identifies a second set of wake-up parameters for at least one of the second configuration of the wake-up signal or the second configuration of the discontinuous reception operation; and
wherein monitoring for the second configuration of the wake-up signal comprises monitoring according to the second set of wake-up parameters for at least one of the second wake-up signal or the second configuration of the discontinuous reception operation.

### Claim 9 (depends on 8)

The method of claim 8, wherein the second set of wake-up parameters for at least one of the second configuration of the wake-up signal or the second configuration of the discontinuous reception operation comprises at least one of:
one or more of search space set, a control resource set, a bandwidth part, a cell, or a beam associated with the second configuration of the wake-up signal;
one or more of a discontinuous reception cycle periodicity or an offset value associated with the second configuration of the discontinuous reception operation;
a wake-up group identifier associated with the second configuration of the wake-up signal;
a wake-up group scrambling code or radio network temporary identifier associated with the second configuration of the wake-up signal;
a wake-up signal size associated with the second configuration of the wake-up signal;
a wake-up information field position of a wake-up information field corresponding to the UE in the second configuration of the wake-up signal;
a wake-up information field size of the wake-up information field corresponding to the UE in the second configuration of the wake-up signal; or
a wake-up indicator position corresponding to the UE in the second configuration of the wake-up signal.

### Claim 10 (depends on 9)

The method of claim 9, wherein the wake-up information field corresponding to the UE in the second configuration of the wake-up signal is a new field or replaces a reserved field in the second configuration of the wake-up signal.

### Claim 11 (depends on 1)

The method of claim 1, wherein the group wake-up signal comprises a downlink control information message having a plurality of fields including one or more of a wake-up indicator field and a corresponding wake-up information field each associated with a specific UE of the group of UEs.

### Claim 12 (depends on 1)

The method of claim 1, wherein the at least one new wake-up parameter of the group wake-up signal configuration update message identifies a new information field position of a wake-up information field corresponding to the UE in the wake-up signal, wherein the wake-up information field corresponding to the UE is a new field or replaces a reserved field in the wake-up signal.

### Claim 13 (depends on 1)

The method of claim 1, wherein receiving the group wake-up signal configuration update message comprises receiving a UE-specific message or a group-specific message.

### Claim 14 (depends on 1)

The method of claim 1, wherein transmitting the wake-up configuration update triggering message comprises transmitting a UE wake-up configuration update request.

### Claim 15 (depends on 1)

The method of claim 1, wherein transmitting the wake-up configuration update triggering message comprises transmitting a measurement report.

### Claim 16 (depends on 1)

The method of claim 1, further comprising:
wherein receiving the group wake-up signal configuration update message comprises receiving a wake-up control signal having a wake-up indicator identifying that the UE does not need to wake-up, and further having a UE-specific wake-up information field having a re-mapping indicator including the at least one new wake-up parameter configured to re-map a configuration of the UE relative to the group of UEs or having a re-grouping indicator including the at least one new wake-up parameter configured to re-group the UE with a new group of UEs;
modifying the set of wake-up parameters of the group wake-up signal configuration based on the re-mapping indicator or the re-grouping indicator and the at least one new wake-up parameter to define a modified group wake-up signal configuration; and
wherein performing the discontinuous reception operation is further based on the modified group wake-up signal configuration.

### Claim 17 (depends on 1)

The method of claim 1, further comprising:
wherein receiving the group wake-up signal configuration update message comprises receiving the wake-up signal having a dedicated re-mapping information field that includes re-mapping information or a dedicated re-grouping information field that includes re-grouping information;
modifying the set of wake-up parameters of the group wake-up signal configuration based on the re-mapping information or the re-grouping information to define a modified group wake-up signal configuration; and
wherein performing the discontinuous reception operation is further based on the modified group wake-up signal configuration.

### Claim 18

A method of wireless communication at a base station, comprising:
transmitting, to a user equipment (UE), a group wake-up signal configuration corresponding to a group of UEs that share a wake-up signal associated with a discontinuous reception operation of the UE, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the wake-up signal or the discontinuous reception operation;
receiving a wake-up configuration update triggering message;
determining at least one new wake-up parameter in response to the wake-up configuration update triggering message;
transmitting a group wake-up signal configuration update message including at least one new wake-up parameter; and
transmitting one or more discontinuous transmissions based on the discontinuous reception operation of the UE based on the at least one new wake-up parameter.

### Claim 19 (depends on 18)

The method of claim 18, wherein transmitting the group wake-up signal configuration comprises transmitting a Layer 1 or Layer 2 signaling.

### Claim 20 (depends on 18)

The method of claim 18, wherein transmitting the group wake-up signal configuration update message comprises transmitting a Layer 1 or Layer 2 signaling.

### Claim 21 (depends on 18)

The method of any of claim 18, wherein transmitting the group wake-up signal configuration update message comprising transmitting at least one of:
a wake-up control signal;
one or more control signals different from the wake-up control signal and received outside of a wake-up signal occasion corresponding to the wake-up control signal;
one or more control signals having a scrambling code different from the wake-up control signal and received during the wake-up signal occasion corresponding to the wake-up control signal; or
a control element in a downlink payload associated with user data.

### Claim 22 (depends on 18)

The method of claim 18, wherein the at least one new wake-up parameter comprises at least one of:
one or more of search space set, a control resource set, a bandwidth part, a cell, or a beam associated with the wake-up signal;
one or more of a discontinuous reception cycle periodicity or an offset value associated the discontinuous reception operation;
a wake-up group identifier associated with the wake-up signal;
a wake-up group scrambling code or radio network temporary identifier associated with the wake-up signal;
a wake-up signal size associated with the wake-up signal;
a wake-up information field position of a wake-up information field corresponding to the UE in the wake-up signal;
a wake-up information field size of the wake-up information field corresponding to the UE in the wake-up signal; or
a wake-up indicator position corresponding to the UE in the wake-up signal.

### Claim 23 (depends on 18)

The method of claim 18, wherein the at least one new wake-up parameter of the group wake-up signal configuration update message causes a re-mapping of the UE with respect to the group wake-up signal configuration corresponding to the group of UEs, or causes the UE to be re-grouped into a new group wake-up signal configuration corresponding to a new group of UEs that share a new wake-up signal associated with a new discontinuous reception operation.

### Claim 24 (depends on 18)

The method of claim 18,
wherein the group wake-up signal configuration comprises a first group wake-up signal configuration corresponding to a first group of UEs, a first configuration of the wake-up signal, and a first configuration of the discontinuous reception operation;
wherein the at least one new wake-up parameter of the group wake-up signal configuration update message identifies a second group wake-up signal configuration corresponding to a second group of UEs, a corresponding second configuration of the wake-up signal, and corresponding a second configuration of the discontinuous reception operation;
wherein transmitting one or more discontinuous transmissions based on the discontinuous reception operation of the UE based on the at least one new wake-up parameter comprises:
transmitting the second configuration of the wake-up signal corresponding to the second group of UEs.

### Claim 25 (depends on 24)

The method of claim 24,
wherein the first group wake-up signal configuration identifies a first set of wake-up parameters for at least one of the first configuration of the wake-up signal or the first configuration of the discontinuous reception operation;
wherein the second group wake-up group configuration identifies a second set of wake-up parameters for at least one of the second configuration of the wake-up signal or the second configuration of the discontinuous reception operation; and
wherein transmitting the second configuration of the wake-up signal comprises transmitting according to the second set of wake-up parameters for the second wake-up signal and the second configuration of the discontinuous reception operation.

### Claim 26 (depends on 25)

The method of claim 25, wherein the second set of wake-up parameters for at least one of the second configuration of the wake-up signal or the second configuration of the discontinuous reception operation comprises at least one of:
one or more of search space set, a control resource set, a bandwidth part, a cell, or a beam associated with the second configuration of the wake-up signal;
one or more of a discontinuous reception cycle periodicity or an offset value associated with the second configuration of the discontinuous reception operation;
a wake-up group identifier associated with the second configuration of the wake-up signal;
a wake-up group scrambling code or radio network temporary identifier associated with the second configuration of the wake-up signal;
a wake-up signal size associated with the second configuration of the wake-up signal;
a wake-up information field position of a wake-up information field corresponding to the UE in the second configuration of the wake-up signal;
a wake-up information field size of the wake-up information field corresponding to the UE in the second configuration of the wake-up signal; or
a wake-up indicator position corresponding to the UE in the second configuration of the wake-up signal.

### Claim 27 (depends on 26)

The method of claim 26, wherein the wake-up information field corresponding to the UE in the second configuration of the wake-up signal is a new field or replaces a reserved field in the second configuration of the wake-up signal.

### Claim 28 (depends on 18)

The method of claim 18, wherein transmitting the one or more discontinuous transmissions comprising transmitting the group wake-up signal in the form of a downlink control information message having a plurality of fields including one or more of a wake-up indicator field and a corresponding wake-up information field each associated with a specific UE of the group of UEs.

### Claim 29

A user equipment (UE) for wireless communications, comprising:
a memory; and
a processor in communication with the memory and configured to:
receive a group wake-up signal configuration corresponding to a group of UEs that share a wake-up signal associated with a discontinuous reception operation, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the wake-up signal or the discontinuous reception operation;
transmit a wake-up configuration update triggering message;
receive a group wake-up signal configuration update message including at least one new wake-up parameter; and
perform the discontinuous reception operation based on the at least one new wake-up parameter.

### Claim 30

A base station for wireless communications, comprising:
a memory; and
a processor in communication with the memory and configured to:
transmit, to a user equipment (UE), a group wake-up signal configuration corresponding to a group of UEs that share a wake-up signal associated with a discontinuous reception operation of the UE, wherein the group wake-up signal configuration identifies a set of wake-up parameters for at least one of the wake-up signal or the discontinuous reception operation;
receive a wake-up configuration update triggering message;
determine at least one new wake-up parameter in response to the wake-up configuration update triggering message;
transmit a group wake-up signal configuration update message including at least one new wake-up parameter; and
transmit one or more discontinuous transmissions based on the discontinuous reception operation of the UE based on the at least one new wake-up parameter.