METHOD FOR REDUCING POWER CONSUMPTION OF TERMINAL IN MOBILE COMMUNICATION SYSTEM USING MULTI-CARRIER STRUCTURE

• US 20170325168A1
• Filed: 07/25/2017
• Published: 11/09/2017
• Est. Priority Date: 10/01/2009
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: LEE, Kyoung Seok, KIM, Jae Heung, NOH, Tae Gyun
• Granted Patent: US 10,405,277 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04L 5/06 the signals being represented by different frequencies combined with time-division multiplexing H04L5/26
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/16 Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
• CPC Class Codes: H04L 5/18 Automatic changing of the traffic direction
• CPC Class Codes: H04L 5/26 combined with the use of different frequencies
• CPC Class Codes: H04W 28/0221 power availability or consumption
• CPC Class Codes: H04W 28/0263 involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• 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 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 52/0222 in packet switched networks
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0232 according to average transmission signal activity
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 52/0261 : managing power supply demand, e.g. depending on battery level
• CPC Class Codes: H04W 52/0264 : by selectively disabling software applications
• CPC Class Codes: H04W 52/0274 : by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 52/0277 : according to available power supply, e.g. switching off when a low battery condition is detected
• CPC Class Codes: H04W 52/028 : switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: H04W 52/0283 : with sequential power up or power down of successive circuit blocks, e.g. switching on the local oscillator before RF or mixer stages
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A method for reducing power consumption of a terminal that communicates with a base station in a mobile communication system using a multi-carrier structure composed of a primary component carrier and at least one secondary component carrier comprises: receiving a discontinuous reception (DRX) parameter group for multi carriers from the base station; and setting the multi carriers to the same parameter value, by using the received parameter group. The method for reducing power consumption of the terminal further comprises: performing a downlink control channel receive operation on each carrier according to a DRX cycle. As the base station in the mobile communication system using the multi-carrier structure simplifies the DRX process for reducing power consumption of a terminal by reducing signaling load, for the multi-carrier control of the terminal, it becomes possible to reduce power consumption of the terminal.

Claims

1-14. -14. (canceled)

15. A method for a discontinuous reception by a terminal, the method comprising:

receiving information about a first discontinuous reception cycle, a duration of the first discontinuous reception cycle and a second discontinuous reception cycle from a base station;

performing the discontinuous reception of a physical downlink control channel (PDCCH) on a first component carrier based on the information about the first discontinuous reception cycle in the duration of the first discontinuous reception cycle;

receiving a first message; and

switching the discontinuous reception on the first component carrier from the first discontinuous reception cycle to the second discontinuous reception cycle in response to the first message in the duration of the first discontinuous reception cycle,

wherein the PDCCH comprises a carrier indicator (CI) indicating a second component carrier through which a data channel is received by the terminal.

16. An apparatus, comprising:

a memory and a processor operably coupled to the memory, to execute program instructions stored in the memory,

wherein the processor, through execution of the program instructions, is configured to;

instruct to receive information about a first discontinuous reception cycle, a duration of the first discontinuous reception cycle and a second discontinuous reception cycle from a base station;

perform a discontinuous reception of a physical downlink control channel (PDCCH) on a first component carrier based on the information about the first discontinuous reception cycle in the duration of the first discontinuous reception cycle;

cause the transceiver to receive a first message; and

switch the discontinuous reception on the first component carrier from the first discontinuous reception cycle to the second discontinuous reception cycle in response to the first message in the duration of the first discontinuous reception cycle,

wherein the PDCCH comprises a carrier indicator (CI) indicating a second component carrier through which a data channel is received by the terminal.