IP Library › Granted Patent US 12,513,774
Granted Patent B2
US 12,513,774 · App. 17/816,837 · Granted Dec 30, 2025

Discontinuous reception cycle periodicity

Inventors: Hyun Yong Lee (San Diego, CA); Linhai He (San Diego, CA); Prashanth Haridas Hande (San Diego, CA); Yuchul Kim (San Diego, CA); Mickael Mondet (Louannec, FR); Peerapol Tinnakornsrisuphap (San Diego, CA); Rajat Prakash (San Diego, CA); Peter Pui Lok Ang (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W76/28H04W72/12
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Quick Facts
Patent No.
US 12,513,774
App. No.
17/816,837
Granted
Dec 30, 2025
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the indication including a selection of a non-integer number for the DRX cycle periodicity. The UE may receive one or more communications based at least in part on the configuration for the DRX cycle periodicity. Numerous other aspects are described.

Claims (46)

1 . A method of wireless communication performed by a user equipment (UE), comprising:

receiving an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the configuration including a selection of a non-integer number for the DRX cycle periodicity;

determining a time for a DRX reception occasion based at least in part on the non-integer number for the DRX cycle periodicity, wherein the determining comprises applying a ceiling operation or a floor operation in a DRX procedure; and

receiving one or more communications based at least in part on the DRX reception occasion.

2 . The method of claim 1 , wherein the configuration includes an indication of the ceiling operation or the floor operation.

3 . The method of claim 1 , wherein the ceiling operation or the floor operation indicates a subframe or a slot for a DRX cycle, wherein the subframe or the slot is a reference time for the DRX reception occasion.

4 . The method of claim 1 , wherein the DRX procedure comprises a modulo operation configured to be performed on the non-integer number.

5 . The method of claim 1 , wherein the DRX reception occasion is a first DRX reception occasion, wherein the time for the first DRX reception occasion is based at least in part on an adjusted start offset for the first DRX reception occasion that is based at least in part on addition to, or subtraction from, a start offset for the first DRX reception occasion, and wherein the start offset for the first DRX reception occasion is based at least in part on being the non-integer number from a second DRX reception occasion or a start offset for the second DRX reception occasion.

6 . The method of claim 1 , further comprising applying the ceiling operation as a single ceiling operation or applying the floor operation as a single floor operation to determine the DRX cycle periodicity and a start offset.

7 . The method of claim 1 , further comprising applying a single modulo operation to determine the DRX cycle periodicity and a start offset.

8 . The method of claim 1 , wherein timing between a set of reception occasions associated with the DRX cycle periodicity is not uniform.

9 . The method of claim 1 , wherein the DRX reception occasion is a first DRX reception occasion, wherein a start offset for the first DRX reception occasion is based at least in part on being the non-integer number from a second DRX reception occasion or a start offset for the second DRX reception occasion, and wherein the time at which the first DRX reception occasion occurs is based at least in part on the time overlapping with the start offset for the first DRX reception occasion.

10 . The method of claim 1 , wherein the DRX cycle periodicity is based at least in part on a rational number expression of a multimedia periodicity associated with the one or more communications.

11 . The method of claim 1 , wherein the receiving the indication of the configuration for the DRX cycle periodicity comprises receiving the indication via radio resource control (RRC) signaling or MAC CE command.

12 . The method of claim 1 , wherein the configuration for the DRX cycle periodicity is associated with a short cycle DRX or a long cycle DRX.

13 . A method of wireless communication performed by a network node, comprising:

transmitting an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the configuration including a selection of a non-integer number for the DRX cycle periodicity;

determining a time for a DRX reception occasion based at least in part on the non-integer number for the DRX cycle periodicity, wherein the determining comprises applying a ceiling operation or a floor operation in a DRX procedure; and

transmitting one or more communications based at least in part on the DRX reception occasion.

14 . The method of claim 13 , wherein the configuration includes an indication of the ceiling operation or the floor operation.

15 . The method of claim 13 , wherein the ceiling operation or the floor operation indicates a subframe or a slot for the DRX cycle, wherein the subframe or the slot is a reference time for the DRX reception occasion.

16 . The method of claim 13 , wherein the DRX procedure comprises a modulo operation configured to be performed on the non-integer number.

17 . The method of claim 13 , wherein the DRX reception occasion is a first DRX reception occasion, wherein the time for the first DRX reception occasion is based at least in part on an adjusted start offset for the first DRX reception occasion that is based at least in part on addition to, or subtraction from, a start offset for the first DRX reception occasion, and wherein the start offset for the first DRX reception occasion is based at least in part on being the non-integer number from a second DRX reception occasion or a start offset for the second DRX reception occasion.

18 . The method of claim 13 , further comprising transmitting an indication for a user equipment (UE) to apply the ceiling operation as a single ceiling operation or apply the floor operation as a single floor operation to determine the DRX cycle periodicity and a start offset.

19 . The method of claim 13 , further comprising transmitting an indication for a user equipment (UE) to apply a single modulo operation to determine the DRX cycle periodicity and a start offset.

20 . The method of claim 13 , wherein timing between a set of reception occasions associated with the DRX cycle periodicity is not uniform.

21 . The method of claim 13 , wherein the DRX reception occasion is a first DRX reception occasion, wherein a start offset for the first DRX reception occasion is based at least in part on being the non-integer number from a second-DRX reception occasion or a start offset for the second DRX reception occasion, and wherein the time at which the first DRX reception occasion occurs is based at least in part on the time overlapping with the start offset for the first DRX reception occasion.

22 . The method of claim 13 , wherein the DRX cycle periodicity is based at least in part on a rational number expression of a multimedia periodicity associated with the one or more communications.

23 . The method of claim 13 , wherein the transmitting the indication of the configuration for the DRX cycle periodicity comprises transmitting the indication via RRC signaling or a MAC CE command.

24 . The method of claim 13 , wherein the configuration for the DRX cycle periodicity is associated with a short cycle DRX or a long cycle DRX.

25 . A user equipment (UE) for wireless communication, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, the one or more memories comprising instructions executable by the one or more processors to cause the UE to:

receive an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the configuration including a selection of a non-integer number for the DRX cycle periodicity;

determine a time for a DRX reception occasion based at least in part on the non-integer number for the DRX cycle periodicity, wherein the determining comprises applying a ceiling operation or a floor operation in a DRX procedure; and

receive one or more communications based at least in part on the DRX reception occasion.

26 . The UE of claim 25 , wherein the configuration includes an indication of the ceiling operation or the floor operation.

27 . A network node for wireless communication, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, the one or more memories comprising instructions executable by the one or more processors to cause the network node to:

transmit an indication of a configuration for a discontinuous reception (DRX) cycle periodicity, the configuration including a selection of a non-integer number for the DRX cycle periodicity;

determine a time for a DRX reception occasion based at least in part on the non-integer number for the DRX cycle periodicity, wherein the determining comprises applying a ceiling operation or a floor operation in a DRX procedure; and

transmit one or more communications based at least in part on the DRX reception occasion.

28 . The network node of claim 27 , wherein the configuration includes an indication of the ceiling operation or the floor operation.

29 . The network node of claim 27 , wherein the ceiling operation or the floor operation indicates a particular slot for a DRX cycle.

30 . The network node of claim 27 , wherein the time for the DRX reception occasion is based at least in part on an adjusted start offset for the DRX reception occasion that is based at least in part on addition to, or subtraction from, a start offset for the DRX reception occasion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2022
From: LEE, HYUN YONG; HE, LINHAI; HANDE, PRASHANTH HARIDAS; KIM, YUCHUL; MONDET, MICKAEL; TINNAKORNSRISUPHAP, PEERAPOL; PRAKASH, RAJAT; ANG, PETER PUI LOK
To: QUALCOMM INCORPORATED
Reel/Frame 061078/0723 →
Continuity (2)
Provisional Application 63233155 · Aug 13, 2021
Related Publication 20230051778A1 · Feb 16, 2023
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