SLEEP MODE CONTROLLING APPARATUS AND METHOD IN CELLULAR SYSTEM

• US 20110195697A1
• Filed: 02/15/2011
• Published: 08/11/2011
• Est. Priority Date: 08/26/2005
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KIM, Jae-Heung, RYU, Byung-Han, BANG, Seung-Chan
• Application Number:
  US13/027,909
• Publication Number:
  US 20110195697A1
• Time in Patent Office: Days
• US Class Current: 455/418
• CPC Class Codes: H04B 1/1615 Switching on; Switching off, e.g. remotely battery saving circuits associated with selective call operation H04W52/00; details of power consumption reduction in a PLL, H03L7/0802, H03L7/14, H03L2207/08, H03L2207/18; muting amplifiers by gain control see H03G3/34
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

In a cellar system providing various packet services, sleep mode operation of a terminal in an idle state is controlled. The cellular system determines a discontinuous receiving (DRX) period according to a QoS of a packet service provided to the terminal, and runs the sleep mode according to the determined DRX period. The cellular system runs the sleep mode divided into shallow sleep duration and deep sleep duration. With this manner, a paging delay to the terminal and a power consumption of the terminal may be reduced.

Claims

1. A method of controlling a state in a terminal of an active state in which a connection for a radio resource control is established, the method comprising:

counting a staying time in the active state; and

transiting into a stand-by state when the staying time exceeds a threshold.

2. The method of claim 1, wherein the stand-by state is a state in which the terminal has no data to be transmitted and received.

3. The method of claim 1, wherein counting the staying time comprises counting the staying time when no data for the terminal exist.

4. The method of claim 1, further comprising receiving a parameter including the threshold from a base station.

5. The method of claim 1, further comprising monitoring a predetermined channel whenever a predetermined period is elapsed.

6. A method of controlling a state of a terminal in a base station, the method comprising:

setting a parameter including a threshold; and

transmitting the parameter to the terminal,

wherein the threshold represents an expiration of a staying time which is counted for the terminal of an active state to transit into a stand-by state of the active state, and

the active state is a state in which a connection for a radio resource control is established.

7. The method of claim 6, wherein the stand-by state is a state in which the terminal has no data to be transmitted and received.

8. The method of claim 6, wherein the staying time is counted when no data for the terminal exist.

9. The method of claim 6, wherein the terminal of the stand-by state monitors a predetermined channel whenever a predetermined period is elapsed.

10. A recording medium having a program stored thereon for executing a method of controlling a state in a terminal of an active state in which a connection for a radio resource control is established, the method comprising:

counting a staying time in the active state; and

transiting into a stand-by state when the staying time exceeds a threshold.

11. The recording medium of claim 10, wherein the stand-by state is a state in which the terminal has no data to be transmitted and received.

12. The recording medium of claim 10, wherein counting the staying time comprises counting the staying time when no data for the terminal exist.

13. The recording medium of claim 10, wherein the method further comprises receiving a parameter including the threshold from a base station.

14. The recording medium of claim 10, wherein the method further comprises monitoring a predetermined channel whenever a predetermined period is elapsed.

15. An apparatus for controlling a state of a terminal in a base station, the apparatus comprising:

means for setting a parameter including a threshold; and

means for transmitting the parameter to the terminal,

wherein the threshold represents an expiration of a staying time which is counted for the terminal of an active state to transit into a stand-by state of the active state, and

the active state is a state in which a connection for a radio resource control is established.

16. The apparatus of claim 15, wherein the stand-by state is a state in which the terminal has no data to be transmitted and received.

17. The apparatus of claim 15, wherein the staying time is counted when no data for the terminal exist.

18. The apparatus of claim 15, wherein the terminal of the stand-by state monitors a predetermined channel whenever a predetermined period is elapsed.