Granted Patent B2

US 12,349,229 · App. 18/124,280 · Granted Jul 1, 2025

Inventors: Hyoungsuk Jeon (Centreville, VA); Esmael Hejazi Dinan (McLean, VA); Yunjung Yi (Vienna, VA); Hua Zhou (Vienna, VA)

Assignee: Ofinno, LLC

H04W76/28H04W74/006H04W74/0841H04W80/02

Abstract

Claims (39)

1. A method comprising:

receiving, by a wireless device, one or more configuration parameters for a two-step random access (RA) procedure;

transmitting, based on the one or more configuration parameters, a message, for the two-step RA procedure, comprising a preamble and a transport block; and

receiving, during a discontinuous reception (DRX) active time of a DRX operation of the wireless device, a response to the message, wherein:

the DRX active time is based on a time window for receiving the response to the message, and

the time window starts at least one symbol after a transmission occasion of the transport block.

2. The method of claim 1 , wherein the transport block indicates a wireless device identity.

3. The method of claim 1 , further comprising determining the DRX operation is in the DRX active time based on the time window running.

4. The method of claim 3 , further comprising stopping the time window in response to receiving the response.

5. The method of claim 1 , wherein the time window starts from a first symbol of a control resource set of the wireless device that is the at least one symbol after the transmission occasion.

6. The method of claim 1 , wherein the transport block comprises a cell radio network temporary identifier (C-RNTI) medium access control control element (MAC CE) indicating a C-RNTI of the wireless device.

7. The method of claim 6 , wherein the C-RNTI indicates an identity of the wireless device.

8. The method of claim 7 , further comprising monitoring, for the response and based on the transport block comprising the C-RNTI MAC CE, one or more downlink control channels using the C-RNTI.

9. The method of claim 1 , wherein the response is a downlink control information (DCI) addressed to the C-RNTI.

10. The method of claim 1 , further comprising monitoring one or more downlink control channels for the response using a radio network temporary identifier.

11. A wireless device comprising:

one or more processors; and

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

receive one or more configuration parameters for a two-step random access channel (RACH) procedure;

transmit, based on the configuration parameters, a message, for the two-step RACH, comprising a preamble and a transport block; and

receive, during a discontinuous reception (DRX) active time of a DRX operation of the wireless device, a response to the message, wherein:

the DRX active time is based on a time window for receiving the response to the message, and

the time window starts at least one symbol after a transmission occasion of the transport block.

12. The wireless device of claim 11 , wherein the transport block indicates a wireless device identity.

13. The wireless device of claim 11 , further comprising determining the DRX operation is in the DRX active time based on the time window running.

14. The wireless device of claim 13 , further comprising stopping the time window in response to receiving the response.

15. The wireless device of claim 11 , wherein the time window starts from a first symbol of a control resource set of the wireless device that is the at least one symbol after the transmission occasion.

16. The wireless device of claim 11 , wherein the transport block comprises a cell radio network temporary identifier (C-RNTI) medium access control control element (MAC CE) indicating a C-RNTI of the wireless device.

17. The wireless device of claim 16 , wherein the C-RNTI indicates an identity of the wireless device.

18. The wireless device of claim 17 , further comprising monitoring, for the response and based on the transport block comprising the C-RNTI MAC CE, one or more downlink control channels using the C-RNTI.

19. The wireless device of claim 11 , wherein the response is a downlink control information (DCI) addressed to the C-RNTI.

20. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, causes cause the base station to:

transmit one or more configuration parameters for a two-step random access channel (RACH) procedure;

receive, based on the configuration parameters, a message, for the two-step RACH, comprising a preamble and a transport block; and

transmit, during a discontinuous reception (DRX) active time of a DRX operation of the wireless device, a response to the message, wherein:

the DRX active time is based on a time window for receiving the response to the message, and

the time window starts at least one symbol after a transmission occasion of the transport block.

Assignments (1)

Continuity (4)

References Cited (106)

Cited By (1)

US 12,408,225