APPARATUS FOR DIRECT COMMUNICATION IN A WIRELESS SYSTEM AND METHOD THEREOF

• US 20110223953A1
• Filed: 03/10/2011
• Published: 09/15/2011
• Est. Priority Date: 03/15/2010
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Han Gyu, Kwon, Yeong Hyeon, Lee, Hyun Woo
• Application Number:
  US13/045,472
• Publication Number:
  US 20110223953A1
• Time in Patent Office: Days
• US Class Current: 455/509
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 92/18 between terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An apparatus for direct communication in a wireless communication system and method thereof are disclosed, by which a communication is efficiently enabled with a low power. In performing a direct communication in a first terminal of a wireless communication system, the present invention includes receiving a resource allocation information on a resource allocated to the direct communication from a base station and performing the direct communication with a second terminal using the allocated resource. In this case, the allocated resource is defined in either an uplink resource region of the base station or a downlink resource region of the base station and the allocated resource is divided into a transmission region for the direct communication and a receipt region for the direct communication.

Claims

1. A method for performing a direct communication, which is performed by a first terminal in a wireless communication system, comprising the steps of:

receiving a resource allocation information on a resource allocated to the direct communication from a base station; and

performing the direct communication with a second terminal using the allocated resource, wherein the allocated resource is defined in either an uplink resource region of the base station or a downlink resource region of the base station and divided into a transmission region and a receipt region for the direct communication.

2. The method of claim 1, wherein the allocated resource is reused for a communication between the base station and a third terminal.

3. The method of claim 1, wherein the allocated resource is reused for a direct communication between a third terminal and a fourth terminal.

4. The method of claim 1, further comprising the steps of:

performing a channel quality measurement on neighbor terminals;

transmitting a result of the measurement to the base station; and

receiving an information on the second terminal to perform the direct communication with the first terminal from the base station, wherein the second terminal is determined using the measurement information.

5. The method of claim 4, further comprising the step of receiving a list of the neighbor terminals from the base station.

6. The method of claim 1, further comprising the steps of:

transmitting a first channel for informing neighbor terminals of an existence of the first terminal; and

receiving a second channel from the second terminal in response to the first channel.

7. The method of claim 1, further comprising the step of transmitting a direct communication request to the base station.

8. A method of supporting a direct communication in a base station of a wireless communication system, comprising the steps of:

determining a resource allocated to the direct communication in a manner of defining a resource region to use for the direct communication on either an uplink resource region and a downlink resource region and dividing the defined resource region into a transmission region and a receipt region for the direct communication; and

transmitting a resource allocation information on the allocated resource to a first terminal.

9. The method of claim 8, wherein the allocated resource is reused for a communication between the base station and a second terminal.

10. The method of claim 8, wherein the allocated resource is reused for a communication between a second terminal and a third terminal.

11. The method of claim 8, further comprising the steps of:

receiving a measurement information on neighbor terminals of the first terminal from the first terminal; and

informing the first terminal of a fourth terminal to perform the direct communication with the first terminal by determining the fourth terminal using the measurement information.

12. The method of claim 11, further comprising the step of transmitting a list of the neighbor terminals to the first terminal.

14. The method of claim 8, further comprising the step of receiving a direct communication request message requesting for performing a communication with a neighbor terminal directly from the first terminal.

15. A first terminal in a wireless communication system, comprising:

a receiving module configured to receive a resource allocation information on a resource allocated to a direct communication from a base station; and

a processor configured to perform the direct communication with a second terminal using the allocated resource,

wherein the allocated resource is defined in either an uplink resource region of the base station or a downlink resource region of the base station and divided into a transmission region and a receipt region for the direct communication.

16. The first terminal of claim 15, wherein the allocated resource is reused for a communication between the base station and a third terminal.

17. The first terminal of claim 15, wherein the allocated resource is reused for a direct communication between a third terminal and a fourth terminal.

18. The first terminal of claim 15, further comprising a transmitting module configured to transmit a direct communication request to the base station.

19. A base station in a wireless communication system, comprising:

a processor configured to determine a resource allocated to the direct communication in a manner of defining a resource region to use for the direct communication on either an uplink resource region and a downlink resource region and dividing the defined resource region into a transmission region and a receipt region for the direct communication; and

a transmitting module configured to transmit a resource allocation information on the allocated resource to a first terminal.

20. The base station of claim 19, wherein the allocated resource is reused for a communication between the base station and a second terminal.

21. The base station of claim 19, wherein the allocated resource is reused for a communication between a second terminal and a third terminal.