Activation and deactivation of power saving operation

Patent metadata

Field	Value
Publication number	US-12010619-B2
Application number	US-201916577847-A
Country	US
Kind code	B2
Filing date	Sep 20, 2019
Priority date	Sep 21, 2018
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

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.

First claim

What is claimed is:

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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. 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.

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.

12. 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.

13. 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.

14. 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.

15. 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.

16. 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.

17. 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.

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.

19. 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.

20. 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.

21. The method of claim 18 , further comprising:
receiving, via the monitored downlink control channel,

Assignees

• Comcast Cable Comm Llc

Inventors

• Zhou Hua
• Dinan Esmael
• Park Kyungmin
• Cirik Ali
• Babaei Alireza
• Jeon Hyoungsuk
• Xu Kai

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W24/02

  Arrangements for optimising operational condition · CPC title

• G06F1/3209

  Monitoring remote activity, e.g. over telephone lines or network connections · CPC title

• H04W76/20

  Manipulation of established connections · CPC title

• Y02D30/70

  in wireless communication networks · CPC title