Method for transitioning between multiple reception levels

• US 9,161,306 B2
• Filed: 10/04/2013
• Issued: 10/13/2015
• Est. Priority Date: 10/30/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): KAO, WEI PO ERIC
• Application Number:
  US14/046,354
• Publication Number:
  US 20140036752A1
• Time in Patent Office: 739 Days
• Field of Search: 370/241, 370/248, 370/252, 370/431, 370/449
• US Class Current: 1/1
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

There is provided a method for enabling a user equipment (UE) to transition between a non-discontinuous reception (Non-DRX) level and at least one discontinuous reception (DRX) level. The UE in a DRX level wakes up periodically to monitor a scheduling channel. The method includes receiving a DRX indicator in a Non-DRX level with continuously monitoring the scheduling channel and transitioning from the Non-DRX level to a DRX level indicated by the DRX indicator. The UE can transition between multiple DRX levels by an explicit command/signaling.

Claims

1. A method for enabling a user equipment (UE) to transition between a non-discontinuous reception (Non-DRX) level and one of a plurality of discontinuous reception (DRX) levels, the method comprising:

receiving configuration information for each of the plurality of DRX levels;

after receiving the configuration information, receiving a DRX indicator while the UE is operating in a Non-DRX level and continuously monitoring the scheduling channel, wherein the DRX indicator indicates one DRX level of the plurality of DRX levels, and wherein each of the plurality of DRX levels has a different DRX period based on the configuration information; and

transitioning from the Non-DRX level to the one DRX level of the plurality of DRX levels indicated by the DRX indicator.

2. The method of claim 1 further comprising:

when the one DRX level of the plurality of DRX levels is a short DRX level, transitioning from the short DRX level to a long DRX level when a predetermined time is passed after transitioning from the Non-DRX level to the short DRX level.

3. The method of claim 1, wherein the DRX indicator is received through a medium access control (MAC) message.

4. A user equipment (UE) configured to transition between a non-discontinuous reception (Non-DRX) level and one of a plurality of discontinuous reception (DRX) levels, the UE comprising:

a processor; and

a memory operatively coupled with the processor and storing instructions that when executed by the processor causes to the UE to;

receive configuration information for each of the plurality of DRX levels,

after receiving the configuration information, receive a DRX indicator while the UE is operating in a Non-DRX level and continuously monitoring the scheduling channel, wherein the DRX indicator indicates one DRX level of the plurality of DRX levels, and wherein each of the plurality of DRX levels has a different DRX period based on the configuration information; and

transition from the Non-DRX level to the one DRX level of the plurality of DRX levels indicated by the DRX indicator.

5. The UE of claim 4, wherein when the one DRX level of the plurality of DRX levels is a short DRX level, the memory stores further instructions that when executed by the processor causes to the UE to transition from the short DRX level to a long DRX level when a predetermined time is passed after transitioning from the Non-DRX level to the short DRX level.

6. The UE of claim 4, wherein the DRX indicator is received through a medium access control (MAC) message.