IP Library Granted Patent US 11,611,468
Granted Patent B2
US 11,611,468 · App. 16/146,913 · Granted Mar 21, 2023

Beam management with DRX configuration

Inventors: Hua Zhou (Herndon, VA); Esmael Hejazi Dinan (Herndon, VA); Kyungmin Park (Arlington, VA); Hyoungsuk Jeon (Oakton, VA); Alireza Babaei (Fairfax, VA)
Assignee: Comcast Cable Communications, LLC
H04L41/0654H04L5/00H04W16/28H04W76/27H04W76/28H04W72/042H04W88/08
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Quick Facts
Patent No.
US 11,611,468
App. No.
16/146,913
Granted
Mar 21, 2023
Kind
B2
Abstract

Systems, apparatuses, and methods are described for wireless communications. A base station may transmit, to a wireless device, one or more radio resource control messages comprising parameters for a discontinuous reception operation and one or more beam procedures. The wireless device may monitor, based on one or more of the parameters, a downlink control channel for downlink control information (DCI). After detecting the DCI, the wireless device may receive one or more downlink packets.

Claims (64)

1. A method comprising:

transmitting, by a wireless device in a radio resource control (RRC)-connected state and based on a beam failure, a preamble associated with beam failure recovery;

based on transmitting the preamble, receiving, via a downlink control channel and during a discontinuous reception (DRX) inactive time and in the RRC-connected state, downlink control information (DCI) associated with the preamble; and

receiving, based on one or more downlink assignments indicated by the DCI, one or more downlink packets.

2. The method of claim 1 , further comprising:

receiving, during a first time period, one or more first radio resource control (RRC) messages indicating one or more preambles associated with beam failure recovery; and

receiving, during a second time period, one or more second RRC messages indicating one or more parameters associated with a DRX operation.

3. The method of claim 2 , wherein the first time period is after the second time period.

4. The method of claim 1 , further comprising:

determining, based on the receiving the DCI, a beam for a transmission to a base station.

5. The method of claim 1 , wherein the transmitting the preamble comprises:

transmitting, to a base station, the preamble via a physical random access channel.

6. The method of claim 1 , further comprising:

starting a first timer; and

monitoring, after an expiration of the first timer, the downlink control channel.

7. The method of claim 6 , further comprising:

after the expiration of the first timer, starting a second timer; and

based on an expiration of the second timer, stopping the monitoring the downlink control channel.

8. The method of claim 1 , further comprising:

determining a time window for monitoring for the DCI associated with the preamble, wherein the time window at least partially overlaps in time with the DRX inactive time; and

monitoring, during the DRX inactive time and in the RRC-connected state, the downlink control channel.

9. The method of claim 1 , wherein the DRX inactive time is according to at least one 3rd Generation Partnership Project (3GPP) standard.

10. A method comprising:

transmitting, by a wireless device in a radio resource control (RRC)-connected state and during a discontinuous reception (DRX) inactive time, an uplink signal associated with beam management;

based on the transmitting the uplink signal during the DRX inactive time, determining that the wireless device is in a discontinuous reception (DRX) active time and in the RRC-connected state;

during the DRX active time:

receiving, via a first downlink control channel, downlink control information (DCI) not associated with beam management; and

receiving, via a second downlink control channel, DCI associated with the uplink signal; and

receiving, based on one or more downlink assignments indicated by the DCI associated with the uplink signal, one or more downlink packets.

11. The method of claim 10 , further comprising:

receiving one or more first radio resource control (RRC) messages comprising one or more downlink beam management parameters; and

after receiving the one or more first RRC messages, receiving one or more second RRC messages comprising one or more DRX parameters.

12. The method of claim 10 , further comprising:

determining, based on the receiving the DCI associated with the uplink signal, a beam for a transmission to a base station, wherein the uplink signal comprises a scheduling request.

13. The method of claim 10 , further comprising:

starting a first timer; and

monitoring, after an expiration of the first timer, the second downlink control channel for the DCI associated with the uplink signal.

14. The method of claim 13 , further comprising:

after the expiration of the first timer, starting a second timer; and

based on an expiration of the second timer, stopping the monitoring the second downlink control channel for the DCI associated with the uplink signal.

15. The method of claim 10 , further comprising:

transmitting, to a base station and based on one or more downlink beam management parameters, one or more of:

a beam report;

a beam failure recovery request; or

a physical random access channel signal.

16. The method of claim 10 , wherein the DRX active time is according to at least one 3rd Generation Partnership Project (3GPP) standard.

17. A method comprising:

receiving, by a wireless device in a radio resource control (RRC)-connected state, first downlink control information (DCI) associated with uplink beam management and indicating one or more uplink beam management parameters;

transmitting, based on the first DCI, an uplink signal;

based on the transmitting the uplink signal, starting a timer; and

after the starting the timer and prior to an expiration of the timer, receiving, during a discontinuous reception (DRX) inactive time and in the RRC-connected state, second DCI associated with the uplink beam management, wherein the second DCI is received via a downlink control channel.

18. The method of claim 17 , further comprising:

receiving one or more first radio resource control (RRC) messages comprising one or more uplink beam management parameters; and

after receiving the one or more first RRC messages, receiving one or more second RRC messages comprising one or more DRX parameters.

19. The method of claim 17 , further comprising:

determining, based on the receiving the second DCI, a beam for a transmission to a base station.

20. The method of claim 17 , further comprising:

determining a time window for monitoring the downlink control channel for the second DCI, wherein the time window at least partially overlaps in time with the DRX inactive time.

21. The method of claim 17 , further comprising:

monitoring, during the DRX inactive time, the downlink control channel for the second DCI; and

based on an expiration of the timer, stopping the monitoring the downlink control channel for the second DCI.

22. The method of claim 17 , wherein the transmitting the uplink signal comprises:

transmitting, to a base station and based on the one or more uplink beam management parameters, one or more sounding reference signals.

23. The method of claim 17 , wherein the DRX inactive time is according to at least one 3rd Generation Partnership Project (3GPP) standard.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2020
From: ZHOU, HUA; DINAN, ESMAEL; PARK, KYUNGMIN; JEON, HYOUNGSUK; BABAEI, ALIREZA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 052680/0179 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2019
From: ZHOU, HUA; DINAN, ESMAEL; PARK, KYUNGMIN; JEON, HYOUNGSUK; BABAEI, ALIREZA
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 048842/0945 →
Continuity (2)
Provisional Application 62564665 · Sep 28, 2017
Related Publication 20190097874A1 · Mar 28, 2019
Cited By (4)
US 12,192,789 US 12,349,229 US 12,389,251 US 12,446,042