Method and apparatus for transmitting information on device-to-device resources in wireless communication system

Patent metadata

Field	Value
Publication number	US-2016338124-A1
Application number	US-201515111362-A
Country	US
Kind code	A1
Filing date	Jan 20, 2015
Priority date	Jan 21, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

A method and apparatus for indicating a resource pool for device-to-device (D2D) transmission in a wireless communication system is provided. A first evolved NodeB (eNB) transmits information on a resource pool of the first eNB for D2D transmission to a second eNB. The second eNB also transmit information on a resource pool of the second eNB for D2D transmission.

First claim

What is claimed is:

1 . A method for indicating, by a first evolved NodeB (eNB), a resource pool for device-to-device (D2D) transmission in a wireless communication system, the method comprising:
transmitting, by the first eNB, information on a resource pool of the first eNB for D2D transmission; and receiving, by the first eNB, information on a resource pool of a second eNB for D2D transmission.

2 . The method of claim 1 , wherein the information on the resource pool includes at least one of frequency, time, a resource block, or a subframe.

3 . The method of claim 1 , wherein the information on the resource pool includes a number of resources blocks and a number of subframes allocated for the resource pool for a frequency division duplex (FDD) frame structure.

4 . The method of claim 1 , wherein the information on the resource pool includes an uplink-downlink configuration number, a subframe number, and a region allocated for the resource pool for a time division duplex (TDD) frame structure, when the resource pool is dependent upon the uplink-downlink configuration number.

5 . The method of claim 1 , wherein the information on the resource pool includes a number of contiguous uplink subframes, and a region allocated for the resource pool for a TDD frame structure, when the resource pool is not dependent upon an uplink-downlink configuration number.

6 . The method of claim 1 , wherein the information on the resource pool further includes information on a discovery region, which is a region that excludes a guard region from a physical uplink shared channel (PUSCH) region.

7 . The method of claim 1 , wherein the information on the resource pool includes a period of the resource pool.

8 . The method of claim 1 , wherein the D2D transmission includes at least one of a D2D discovery or a D2D communication.

9 . The method of claim 8 , wherein the information on the resource pool is configured per each type of the D2D discovery.

10 . The method of claim 8 , wherein the information on the resource pool is configured per each mode of the D2D communication.

11 . The method of claim 1 , wherein the information on the resource pool is transmitted or received via one of an X2 setup request message, an X2 setup response message, or an eNB configuration update message.

12 . The method of claim 1 , wherein the information on the resource pool is transmitted or received via one of a load information message.

13 . The method of claim 12 , wherein the load information message includes an invoke indication information element (IE) indicating request of the information on the resource pool.

14 . The method of claim 1 , wherein the information on the resource pool is transmitted or received via a resource status update message.

15 . The method of claim 14 , further comprising transmitting a resource status request message, which includes an indication triggering the information on the resource pool.

16 . The method of claim 1 , wherein the information on the resource pool includes a starting point of a radio frame.

17 . A first evolved NodeB (eNB) configured to indicate a resource pool for device-to-device (D2D) transmission in a wireless communication system, the first eNB comprising:
a radio frequency (RF) unit configured to transmit or receive a radio signal; and a processor coupled to the RF unit, and configured to: transmit information on a resource pool of the first eNB for D2D transmission; and receive information on a resource pool of a second eNB for D2D transmission.

Assignees

• Lg Electronics Inc

Inventors

• Byun Daewook
• Xu Jian
• Park Kyungmin
• Chae Hyukjin

Classifications

• H04W72/27 Primary

  between access points · CPC title

• H04W92/20

  between access points · CPC title

• H04W76/14 Primary

  Direct-mode setup · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title