Method and device for communication between terminals in wireless communication system

• US 9,888,473 B2
• Filed: 08/31/2016
• Issued: 02/06/2018
• Est. Priority Date: 12/07/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seo, Hanbyul, Lee, Daewon, Kim, Mingyu, Kim, Byounghoon, Kim, Kijun, Choi, Youngseob
• Primary Examiner(s): Sam, Phirin
• Application Number:
  US15/253,302
• Publication Number:
  US 20170006605A1
• Time in Patent Office: 524 Days
• Field of Search: None
• CPC Class Codes: H04J 11/0069 Cell search, i.e. determining cell identity [cell-ID] design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present invention relates to a wireless communication system, and more particularly, to a method and device for communication between terminals in a wireless communication system. According to the present invention, a resource configuration method, a channel configuration method, a transmission power control method, etc. for communication between terminals can be provided.

Claims

1. A method of performing communication between a first UE (User Equipment) and a second UE in a wireless communication system, the method performed by the first UE and comprising:

being configured, by a higher layer, to use a first identifier which is different from a second identifier for a communication between the first UE and the base station to receive, from a base station, downlink control information comprising scheduling information for a communication between the first UE and the second UE;

receiving, from the base station, the downlink control information;

decoding the downlink control information using the first identifier; and

performing the communication between the first UE and the second UE based on the scheduling information.

2. The method according to claim 1, wherein the downlink control information includes a Cyclic Redundancy Check (CRC) scrambled by the first identifier.

3. The method according to claim 1, wherein the scheduling information includes resource information used for the communication between the first UE and the second UE.

4. The method according to claim 1, wherein the scheduling information includes a Transmission Power Control (TPC) command for the communication between the first UE and the second UE.

5. The method according to claim 1, wherein the communication between the first UE and the second UE is performed in a subframe which does not overlap in time with an uplink transmission from the first UE to the base station.

6. A first User Equipment (UE) performing a communication with a second UE in a wireless communication system, the first UE comprising:

a transmitter;

a receiver; and

a processor that controls the first UE,

wherein the first UE is configured, by a higher layer, to use a first identifier which is different from a second identifier for a communication between the first UE and the base station to receive, downlink control information comprising scheduling information for a communication between the first UE and the second UE, and

wherein the processor receives, from the base station, the downlink control information, decodes the downlink control information using the first identifier, and performs the communication between the first UE and the second UE based on the scheduling information.

7. The method according to claim 6, wherein the downlink control information includes a Cyclic Redundancy Check (CRC) scrambled by the first identifier.

8. The method according to claim 6, wherein the scheduling information includes resource information used for the communication between the first UE and the second UE.

9. The method according to claim 6, wherein the scheduling information includes a Transmission Power Control (TPC) command for the communication between the first UE and the second UE.

10. The method according to claim 6, wherein the communication between the first UE and the second UE is performed in a subframe which does not overlap in time with an uplink transmission from the first UE to the base station.