# US 12,010,619 B2 · Activation and deactivation of power saving operation

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- Number: US 12,010,619 B2
- Document ID: US12010619B2
- Status: Granted
- Kind: B2
- Application number: 16/577,847
- Filed: 2019-09-20
- Published: 2020-03-26
- Granted: 2024-06-11
- Earliest claimed: 2018-09-21
- Assignees: Comcast Cable Communications, LLC
- Applicants: Comcast Cable Communications, LLC
- Inventors: Hua Zhou; Esmael Dinan; Kyungmin Park; Ali Cirik; Alireza Babaei; Hyoungsuk Jeon; Kai Xu
- Web page: https://patentgrep.com/patent/US12010619B2

## CPC

- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 52/0229: {where the received signal is a wanted signal}
- G06F 1/3209: Monitoring remote activity, e.g. over telephone lines or network connections
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 24/02: Arrangements for optimising operational condition
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 76/20: Manipulation of established connections
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04W 52/0206: {in access points, e.g. base stations}
- H04W 76/27: Transitions between radio resource control [RRC] states
- 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)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

Wireless communication techniques using a power saving mode are described. A wireless device may be configured with a plurality of power saving configurations. A base station may transmit an indication of a power saving configuration in the plurality of power saving configurations. The wireless device may monitor a power saving channel based on the indicated power saving configuration.

## Claims

### Claim 1

A method comprising:
receiving, by a wireless device, one or more messages comprising information indicating a plurality of power saving channels associated with a plurality of power saving configurations;
receiving downlink control information (DCI) indicating activation of a first power saving configuration, of the plurality of power saving configurations, for a cell;
monitoring, based on activation of the first power saving configuration, a power saving channel, of the plurality of power saving channels, corresponding to the first power saving configuration;
receiving, via the power saving channel, a wake-up indication; and
monitoring, based on the receiving the wake-up indication, a downlink control channel of the cell.

### Claim 2 (depends on 1)

The method of claim 1, wherein:
the DCI further indicates a bandwidth part of the cell, and
the monitoring the power saving channel comprises monitoring the power saving channel on the bandwidth part of the cell.

### Claim 3 (depends on 1)

The method of claim 1, wherein:
the one or more messages comprise information associated with the first power saving configuration, wherein the information associated with the first power saving configuration comprises at least one of:
a periodicity of the power saving channel,
a duration of the power saving channel,
a number of resource blocks in a frequency domain,
a bandwidth part indicator indicating a bandwidth of the cell,
a search space set, or
a control resource set; and
the monitoring the power saving channel is based on at least one of the information associated with the first power saving configuration.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
determining, based on receiving a second message, that a beam failure recovery procedure is ongoing on the cell; and
based on the determining that a beam failure recovery procedure is ongoing on the cell:
continuing the beam failure recovery procedure, and
delaying adjusting the cell into a power saving state.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
receiving, via the monitored downlink control channel, a downlink assignment; and
receiving, based on the downlink assignment, downlink transport blocks.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving, via the monitored downlink control channel, an uplink grant; and
transmitting, based on the uplink grant, uplink transport blocks.

### Claim 7 (depends on 1)

The method of claim 1, wherein the monitoring the power saving channel comprises monitoring a control resource set, for the power saving channel, indicated by one or more parameters of the first power saving configuration.

### Claim 8 (depends on 1)

The method of claim 1, wherein the DCI comprises:
a first field that indicates the first power saving configuration of the plurality of power saving configurations; and
a second field that indicates the cell.

### Claim 9 (depends on 1)

The method of claim 1, further comprising, based on receiving the DCI, at least one of:
stopping a secondary cell deactivation timer of the cell, or
stopping a bandwidth part inactivity timer of an active bandwidth part of the cell.

### Claim 10 (depends on 1)

The method of claim 1, wherein the one or more messages further comprise information indicating that the plurality of power saving channels respectively correspond to the plurality of power saving configurations.

### Claim 11

A method comprising:
receiving, by a wireless device, one or more messages comprising information indicating a plurality of power saving channels associated with a plurality of power saving configurations;
monitoring, based on downlink control information (DCI) that indicates activation of a first power saving configuration, of the plurality of power saving configurations, for a cell, a power saving channel, of the plurality of power saving channels, corresponding to the first power saving configuration;
receiving, via the power saving channel, a wake-up indication of the cell; and
based on receiving the wake-up indication, monitoring a downlink control channel of the cell.

### Claim 12 (depends on 11)

The method of claim 11, further comprising:
receiving the DCI, wherein the DCI comprises:
a first field that indicates the first power saving configuration of the plurality of power saving configurations; and
a second field that indicates the cell.

### Claim 13 (depends on 11)

The method of claim 11, wherein:
the one or more messages comprise information associated with the first power saving configuration, wherein the information associated with the first power saving configuration comprises at least one of:
a periodicity of the power saving channel,
a duration of the power saving channel,
a number of resource blocks in a frequency domain,
a bandwidth part indicator indicating a bandwidth of the cell,
a search space set, or
a control resource set; and
the monitoring the power saving channel is based on at least one of the information associated with the first power saving configuration.

### Claim 14 (depends on 11)

The method of claim 11, further comprising:
based on a determination that a beam failure recovery procedure is ongoing on the cell:
continuing the beam failure recovery procedure, and
delaying adjusting the cell into a power saving state.

### Claim 15 (depends on 11)

The method of claim 11, wherein the method further comprises:
receiving, via the downlink control channel of the cell, a downlink assignment; and
receiving, based on the downlink assignment, downlink transport blocks.

### Claim 16 (depends on 11)

The method of claim 11, wherein the method further comprises:
receiving, via the downlink control channel of the cell, an uplink grant; and
transmitting, based on the uplink grant, uplink transport blocks.

### Claim 17 (depends on 11)

The method of claim 11, wherein the monitoring the downlink control channel of the cell comprises monitoring the downlink control channel of the cell for:
a downlink assignment; or
an uplink grant.

### Claim 18

A method comprising:
receiving, by a wireless device, one or more first messages comprising information indicating a plurality of power saving channels associated with a plurality of power saving configurations;
receiving downlink control information (DCI) comprising an indication indicating activation of a first power saving configuration, of the plurality of power saving configurations, for a cell;
monitoring, based on activation of the first power saving configuration, a power saving channel, of the plurality of power saving channels, corresponding to the first power saving configuration; and
receiving, via the power saving channel, a wake-up indication that indicates monitoring a downlink control channel of the cell.

### Claim 19 (depends on 18)

The method of claim 18, wherein:
the one or more first messages comprise information associated with the first power saving configuration, wherein the information associated with the first power saving configuration comprises at least one of:
a periodicity of the power saving channel,
a duration of the power saving channel,
a number of resource blocks in a frequency domain,
a bandwidth part indicator indicating a bandwidth of the cell,
a search space set, or
a control resource set; and
the monitoring the power saving channel is based on at least one of the information associated with the first power saving configuration.

### Claim 20 (depends on 18)

The method of claim 18, further comprising:
based on a determination that a beam failure recovery procedure is ongoing on the cell:
continuing the beam failure recovery procedure, and
delaying adjusting the cell into a power saving state.

### Claim 21 (depends on 18)

The method of claim 18, further comprising:
receiving, via the monitored downlink control channel, a downlink assignment; and
receiving, based on the downlink assignment, downlink transport blocks.

### Claim 22 (depends on 18)

The method of claim 18, further comprising:
receiving, via the monitored downlink control channel, an uplink grant; and
transmitting, based on the uplink grant, uplink transport blocks.

### Claim 23 (depends on 18)

The method of claim 18, further comprising, based on receiving the DCI, at least one of:
stopping a secondary cell deactivation timer of the cell, or
stopping a bandwidth part inactivity timer of an active bandwidth part of the cell.

### Claim 24 (depends on 18)

The method of claim 18, wherein the monitoring the power saving channel comprises monitoring a control resource set, for the power saving channel, indicated by one or more parameters of the first power saving configuration.