Granted Patent B2

US 12,457,554 · App. 17/986,105 · Granted Oct 28, 2025

Inventors: Hua Zhou (Vienna, VA); Esmael Hejazi Dinan (McLean, VA); Kyungmin Park (Vienna, VA); Ali Cagatay Cirik (Chantilly, VA); Alireza Babaei (Fairfax, VA); Hyoungsuk Jeon (Centreville, VA); Kai Xu (Herndon, VA)

Assignee: Comcast Cable Communications, LLC

H04W52/0229G06F1/3209H04W24/02H04W72/23H04W76/20

Abstract

Claims (115)

1. A method comprising:

receiving, by a wireless device, one or more configuration parameters, of a cell, indicating:

a first search space (SS) set; and

a time duration value of a timer for monitoring a first downlink control channel on the first SS set, wherein the timer is different from a bandwidth part (BWP) inactivity timer;

receiving, after the BWP inactivity timer starts running, downlink control information (DCI);

starting, after the receiving the DCI, the timer based on the time duration value; and

based on an expiration of the timer:

stopping monitoring the first downlink control channel on the first SS set; and

starting monitoring a second downlink control channel different from the first downlink control channel.

2. The method of claim 1 , further comprising:

while the timer is running and based on the DCI:

stopping monitoring the second downlink control channel; and

starting monitoring the first downlink control channel on the first SS set.

3. The method of claim 1 , further comprising, based on the starting the timer:

starting monitoring, the first downlink control channel.

4. The method of claim 1 , wherein the one or more configuration parameters further comprise information associated with a power saving configuration, and wherein the DCI comprises a command indicating activation of the power saving configuration.

5. The method of claim 4 , wherein the information associated with the power saving configuration comprises at least one of:

a periodicity of the first downlink control channel on the first SS set;

a quantity of resource blocks in a frequency domain;

a BWP indicator indicating a bandwidth of the cell; or

a control resource set, and

wherein the monitoring the first downlink control channel on the first SS set is based on the information associated with the power saving configuration.

6. The method of claim 1 , further comprising:

receiving, via the first downlink control channel on the first SS set, a downlink assignment; and

receiving, based on the downlink assignment, at least one transport block.

7. The method of claim 1 , further comprising:

receiving, via the first downlink control channel on the first SS set, an uplink grant; and

sending, based on the uplink grant, at least one transport block.

8. The method of claim 1 , wherein the one or more configuration parameters further indicate a second time duration value associated with the BWP inactivity timer.

9. The method of claim 8 , further comprising:

based on an expiration of the BWP inactivity timer associated with the second time duration value, switching from a first BWP to a second BWP.

10. A method comprising:

receiving, by a wireless device, one or more configuration parameters, of a cell, indicating:

a first search space (SS) set; and

a first time duration value for monitoring a first downlink control channel on the first SS set, wherein the first time duration value is different from a second time duration value associated with bandwidth part (BWP) inactivity;

receiving, after starting a BWP inactivity timer based on the second time duration value, downlink control information (DCI); and

after a time period, corresponding to the first time duration value, following the receiving the DCI:

stopping monitoring the first downlink control channel on the first SS set; and

starting monitoring a second downlink control channel different from the first downlink control channel.

11. The method of claim 10 , further comprising:

during the time period and based on the DCI:

stopping monitoring the second downlink control channel; and

starting monitoring the first downlink control channel on the first SS set.

12. The method of claim 10 , further comprising, after the receiving the DCI:

starting monitoring, the first downlink control channel.

13. The method of claim 10 , wherein the one or more configuration parameters further comprise information associated with a power saving configuration, and wherein the DCI comprises a command indicating activation of the power saving configuration.

14. The method of claim 13 , wherein the information associated with the power saving configuration comprises at least one of:

a periodicity of the first downlink control channel on the first SS set;

a quantity of resource blocks in a frequency domain;

a BWP indicator indicating a bandwidth of the cell; or

a control resource set, and

wherein the monitoring the first downlink control channel on the first SS set is based on the information associated with the power saving configuration.

15. The method of claim 10 , further comprising:

receiving, via the first downlink control channel on the first SS set, a downlink assignment; and

receiving, based on the downlink assignment, at least one transport block.

16. The method of claim 10 , further comprises:

receiving, via the first downlink control channel on the first SS sets, an uplink grant; and

sending, based on the uplink grant, at least one uplink transport block.

17. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, configure the wireless device to:

receive one or more configuration parameters, of a cell, indicating:

a first search space (SS) set; and

a time duration value of a timer for monitoring a first downlink control channel on the first SS set, wherein the timer is different from a bandwidth part (BWP) inactivity timer;

receive, after the BWP inactivity timer starts running, downlink control information (DCI);

start, after the DCI is received, the timer based on the time duration value; and

based on an expiration of the timer:

stop monitoring the first downlink control channel on the first SS set; and

start monitoring a second downlink control channel different from the first downlink control channel.

18. The wireless device of claim 17 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

while the timer is running and based on the DCI:

stop monitoring the second downlink control channel; and

start monitoring the first downlink control channel on the first SS set.

19. The wireless device of claim 17 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to, based on the starting the timer, start monitoring, the first downlink control channel.

20. The wireless device of claim 17 , wherein the one or more configuration parameters further comprise information associated with a power saving configuration, and wherein the DCI comprises a command indicating activation of the power saving configuration.

21. The wireless device of claim 20 , wherein the information associated with the power saving configuration comprises at least one of:

a periodicity of the first downlink control channel on the first SS set;

a quantity of resource blocks in a frequency domain;

a BWP indicator indicating a bandwidth of the cell; or

a control resource set, and

wherein the instructions, when executed by the one or more processors, configure the wireless device to monitor, based on the information associated with the power saving configuration, the first downlink control channel on the first SS set.

22. The wireless device of claim 17 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

receive, via the first downlink control channel on the first SS set, a downlink assignment; and

receive, based on the downlink assignment, at least one transport block.

23. The wireless device of claim 17 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

receive, via the first downlink control channel on the first SS set, an uplink grant; and

send, based on the uplink grant, at least one transport block.

24. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, configure the wireless device to:

receive one or more configuration parameters, of a cell, indicating:

a first search space (SS) set; and

a first time duration value for monitoring a first downlink control channel on the first SS set, wherein the first time duration value is different from a second time duration value associated with bandwidth part (BWP) inactivity;

receive, after starting a BWP inactivity timer based on the second time duration, downlink control information (DCI); and

after a time period, corresponding to the first time duration value, following the receiving the DCI:

stop monitoring the first downlink control channel on the first SS set; and

start monitoring a second downlink control channel different from the first downlink control channel.

25. The wireless device of claim 24 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

during the time period and based on the DCI:

stop monitoring the second downlink control channel; and

start monitoring the first downlink control channel on the first SS set.

26. The wireless device of claim 24 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to, after the receiving the DCI, start monitoring, the first downlink control channel.

27. The wireless device of claim 24 , wherein the one or more configuration parameters further comprise information associated with a power saving configuration, and wherein the DCI comprises a command indicating activation of the power saving configuration.

28. The wireless device of claim 25 , wherein the information associated with the power saving configuration comprises at least one of:

a periodicity of the first downlink control channel on the first SS set;

a quantity of resource blocks in a frequency domain;

a BWP indicator indicating a bandwidth of the cell; or

a control resource set, and

wherein the instructions, when executed by the one or more processors, configure the wireless device to monitor, based on the information associated with the power saving configuration, the first downlink control channel on the first SS set.

29. The wireless device of claim 24 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

receive, via the first downlink control channel on the first SS set, a downlink assignment; and

receive, based on the downlink assignment, at least one transport block.

30. The wireless device of claim 24 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to:

receive, via the first downlink control channel on the first SS set, an uplink grant; and

send, based on the uplink grant, at least one transport block.

Assignments (4)

Continuity (4)

References Cited (335)