Method and apparatus for optimizing power consumption of a terminal in a mobile communication system

• US 9,681,385 B2
• Filed: 07/30/2015
• Issued: 06/13/2017
• Est. Priority Date: 11/15/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jeong, Kyeong In, Jung, Jung Soo, Kim, Sang Bum, Kim, Soeng Hun, Cho, Joon Young, Ng, Boon Loong, Van Lieshout, Gert Jan, Van Der Velde, Himke
• Primary Examiner(s): Crutchfield, Christopher
• Application Number:
  US14/814,373
• Publication Number:
  US 20160037452A1
• Time in Patent Office: 684 Days
• CPC Class Codes: H04W 52/0203 in the radio access network or backbone network of wireless communication networks
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• 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 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 52/0258 controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention relates to a method and to an apparatus for optimizing the power consumption of a terminal in a mobile communication system. The method for optimizing power consumption of a terminal in a mobile communication system comprises: a determination step of determining whether there is a need for changing a configuration for a discontinuous reception operation of the terminal; and a transmission step of transmitting, to a base station, a request message for a change in the discontinuous reception operation, if it is determined that the change is needed.

Claims

1. A method for providing preferred power saving information by a terminal in a wireless communication system, the method comprising:

receiving, from a base station, information configured to provide power saving information through radio resource control (RRC) signaling;

determining whether current preferred power saving information is different from previous preferred power saving information;

determining whether a timer associated with a message is running; and

transmitting, to the base station, the message including preferred power saving information if the current preferred power saving information is different from the previous preferred power saving information and the timer is not running.

2. The method of claim 1, wherein the timer starts or restarts if the message is transmitted.

3. The method of claim 1, further comprising:

determining to transmit the message if the terminal has no data to be transmitted.

4. The method of claim 1, wherein the power saving information includes at least one of a predetermined discontinuous reception inactivity timer value, a discontinuous reception cycle value, or an on-duration timer value.

5. The method of claim 1, wherein the terminal is connected to the base station by a hand over.

6. The method of claim 1, further comprising:

receiving a response message of the message from the base station; and

changing power saving configuration of the terminal using power saving information included in the response message.

7. The method of claim 1, wherein transmitting the message to the base station comprises transmitting the message to the base station on a data channel.

8. A terminal configured for providing preferred power saving in a wireless communication system, the terminal comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

receive, via the transceiver, information configured to provide power saving information through radio resource control (RRC) signaling, from a base station,

determine whether current preferred power saving information is different from previous preferred power saving information,

determine whether a timer associated with a message is running, and

transmit, via the transceiver, the message including preferred power saving information if the current preferred power saving information is different from the previous preferred power saving information and the timer is not running, to the base station.

9. The terminal of claim 8, wherein the timer starts or restarts if the message is transmitted.

10. The terminal of claim 8, wherein the controller is configured to control the transmission of the message if the terminal has no data to be transmitted.

11. The terminal of claim 8, wherein the power saving information comprises at least one of a predetermined discontinuous reception inactivity timer value, a discontinuous reception cycle value, or an on-duration timer value.

12. The terminal of claim 8, wherein the terminal is connected to the base station by a handover.

13. The terminal of claim 8, wherein the controller is further configured to receive, via the transceiver, a response message from the base station in response to the message and change a power saving configuration of the terminal using power saving information included in the response message.

14. The terminal of claim 8, wherein the controller is configured to transmit, via the transceiver, the message to the base station on a data channel.

15. A base station for providing preferred power saving information in a wireless communication system, the base station comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

generate information configured to provide power saving information of a terminal,

transmit, via the transceiver, the information through radio resource control (RRC) signaling, to the terminal,

receive, via the transceiver, a message including preferred power saving information if current preferred power saving information of the terminal is different from previous preferred power saving information of the terminal and a timer associated with the message is not running, from the terminal.

16. The base station of claim 15, wherein the timer starts or restarts if the message is received.

17. The base station of claim 15, wherein the message is received if the terminal has no data to be transmitted.

18. A method for providing preferred power information by a base station in a wireless communication system, the method comprising:

generating information configured to provide power saving information of a terminal;

transmitting, to the terminal, the information through radio resource control (RRC) signaling; and

receiving, from the terminal, a message including preferred power saving information if current preferred power saving information of the terminal is different from previous preferred power saving information of the terminal and a timer associated with the message is not running.

19. The method of claim 18, wherein the timer starts or restarts if the message is received.

20. The method of claim 18, wherein the message is received if the terminal has no data to be transmitted.