IP Library Granted Patent US 10,932,190
Granted Patent B2
US 10,932,190 · App. 16/430,101 · Granted Feb 23, 2021

Method and system for the control of discontinuous reception in a wireless network

Inventors: Zhijun Cai (Ashburn, VA); James Earl Womack (Bedford, TX); Takashi Suzuki (Ichikawa, JP); Gordon Peter Young (Shipston-on-Stour, GB); Yi Yu (Reston, VA)
Assignee: BlackBerry Limited
H04W52/0216H04W52/0251H04W56/0015H04W76/28H04W52/02Y02D30/70
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Quick Facts
Patent No.
US 10,932,190
App. No.
16/430,101
Granted
Feb 23, 2021
Kind
B2
Abstract

Methods and apparatus for controlling discontinuous reception on a mobile device and in particular to control a short discontinuous reception timer in response to receipt of a medium access control control element. The methods and apparatus include stopping, restarting or maintaining the short discontinuous reception timer. Methods and apparatus for limiting or stopping a retransmission timer by providing user equipment with a maximum retry value for transmissions, by providing a maximum redundant version value, or by providing a medium access control control element to stop or prevent the start of a retransmission timer.

Claims (20)

1. A method for discontinuous reception (DRX) operations, comprising:

transmitting, from a network element to a user equipment, a medium access control (MAC) control element, wherein the MAC control element includes a Hybrid automatic repeat request (HARQ) process identifier that identifies a particular HARQ process, and the MAC control element instructs the user equipment to stop a retransmission timer of the particular HARQ process or prevent the retransmission timer of the particular HARQ process from starting.

2. The method of claim 1 , wherein the MAC control element is transmitted in response to determining that a preset condition has been met.

3. The method of claim 2 , wherein the preset condition comprises a maximum number of retries having occurred.

4. The method of claim 1 , wherein the MAC control element instructs the user equipment to stop the retransmission timer of the particular HARQ process.

5. The method of claim 1 , wherein the MAC control element instructs the user equipment to prevent the retransmission timer of the particular HARQ process from starting.

6. A network element, comprising:

a processor configured to:

determine to transmit a medium access control (MAC) control element to a user equipment; and

a communications subsystem adapted to communicate with the user equipment and to further transmit the MAC control element to the user equipment, wherein the MAC control element includes a Hybrid automatic repeat request (HARQ) process identifier that identifies a particular HARQ process, and the MAC control element instructs the user equipment to stop a retransmission timer of the particular HARQ process or prevent the retransmission timer of the particular HARQ process from starting.

7. The network element of claim 6 , wherein the MAC control element is transmitted in response to determining that a preset condition has been met.

8. The network element of claim 7 , wherein the preset condition comprises a maximum number of retries having occurred.

9. The network element of claim 6 , wherein the MAC control element instructs the user equipment to stop the retransmission timer of the particular HARQ process.

10. The network element of claim 6 , wherein the MAC control element instructs the user equipment to prevent the retransmission timer of the particular HARQ process from starting.

11. An apparatus comprising instructions embodied on a non-transitory computer-readable medium, the instructions operable when executed to cause a computing system to perform operations comprising:

transmitting, from a network element to a user equipment, a medium access control (MAC) control element, wherein the MAC control element includes a Hybrid automatic repeat request (HARQ) process identifier that identifies a particular HARQ process, and the MAC control element instructs the user equipment to stop a retransmission timer of the particular HARQ process or prevent the retransmission timer of the particular HARQ process from starting.

12. The apparatus of claim 11 , wherein the MAC control element is transmitted in response to determining that a preset condition has been met.

13. The apparatus of claim 12 , wherein the preset condition comprises a maximum number of retries having occurred.

14. The apparatus of claim 11 , wherein the MAC control element instructs the user equipment to stop the retransmission timer of the particular HARQ process.

15. The apparatus of claim 11 , wherein the MAC control element instructs the user equipment to prevent the retransmission timer of the particular HARQ process from starting.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2025
From: BLACKBERRY LIMITED
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 070811/0867 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: YOUNG, GORDON PETER
To: RESEARCH IN MOTION UK LIMITED
Reel/Frame 049689/0697 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: CAI, ZHIJUN; WOMACK, JAMES EARL; YU, YI
To: RESEARCH IN MOTION CORPORATION
Reel/Frame 049690/0197 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: SUZUKI, TAKASHI
To: RESEARCH IN MOTION JAPAN LIMITED
Reel/Frame 049690/0414 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: RESEARCH IN MOTION UK LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 049690/0444 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: RESEARCH IN MOTION CORPORATION
To: RESEARCH IN MOTION LIMITED
Reel/Frame 049690/0510 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2019
From: RESEARCH IN MOTION JAPAN LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 049690/0545 →
CHANGE OF NAME Recorded Jul 8, 2019
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 049693/0962 →
Continuity (5)
Continuation 14825903 · Aug 13, 2015
Continuation 13244720 · Sep 26, 2011
Continuation 12430333 · Apr 27, 2009
Provisional Application 61047964 · Apr 25, 2008
Related Publication 20190289546A1 · Sep 19, 2019