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

• US 9,749,957 B2
• Filed: 10/05/2015
• Issued: 08/29/2017
• Est. Priority Date: 11/15/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Sang Bum, Kim, Soeng Hun, Jeong, Kyeong In, Jung, Jung Soo, Cho, Joon Young, Van Lieshout, Gert Jan, Van Der Velde, Himke, Ng, Boon Loong
• Primary Examiner(s): Crutchfield, Christopher
• Application Number:
  US14/875,596
• Publication Number:
  US 20160119875A1
• Time in Patent Office: 694 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 information by a base station in a wireless communication system, the method comprising:

generating information that indicates to provide preferred power information of a terminal;

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

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

wherein the timer starts or restarts if the message is received.

2. The method of claim 1, wherein the receiving of the message is performed if the terminal has no data to be transmitted.

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

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

5. The method of claim 1, further comprising:

transmitting a response message of the message to the terminal; and

wherein the response message includes power information for changing a power saving configuration of the terminal.

6. The method of claim 1, wherein receiving the message from the terminal comprises receiving the message from the terminal on a data channel.

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

a transceiver configured to transmit and receive a signal; and

a controller configured to control;

generating information that indicates to provide preferred power information of a terminal;

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

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

wherein the timer starts or restarts if the message is received.

8. The base station of claim 7, wherein the receiving of the message is performed if the terminal has no data to be transmitted.

9. The base station of claim 7, wherein the power information comprises at least one of a predetermined discontinuous reception inactivity timer value, a discontinuous reception cycle value, and an on-duration timer value.

10. The base station of claim 7, wherein the base station is connected to the terminal by a hand over.

11. The base station of claim 7, wherein the controller is further configured to control a transmission of a response message of the message to the terminal,

wherein the response message includes power information for changing a power saving configuration of the terminal.

12. The base station of claim 7, wherein the controller is configured to receive the message from the terminal on a data channel.