US 2016/0262124 A1 · METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION IN PARTIAL NETWORK ENVIRONMENT

Abstract

According to an embodiment of this disclosure, a method for transmitting and receiving a signal in a device of a mobile communication system includes steps of receiving, from a base station, a first message containing one or more of synchronization information and resource allocation information; transmitting, to other device, a second message containing the received synchronization information and resource allocation information; and receiving, from the other device, a third message for a random access based on the synchronization information and the resource allocation information. According to an embodiment of the present disclosure, even a device failing to obtain synchronization can obtain synchronization from a base station through other device, receive authentication and security related information, and thereby perform reliable D2D communication. Also, a communication efficiency can be improved by transmitting and receiving D2D related information between devices through limited resources.

Claims16

Dependent claims

A method for transmitting and receiving a signal in a device of a mobile communication system, the method comprising steps of:

receiving, from a base station, a first message containing one or more of synchronization information and resource allocation information;
transmitting, to other device, a second message containing the received synchronization information and resource allocation information;
and
receiving, from the other device, a third message for a random access based on the synchronization information and the resource allocation information.

1 more element

Dependencies are inferred from the claim text.

Method and apparatus for device-to-device communication in partial network environment

Life of this patent

Method and apparatus for device-to-device communication in partial network environment

Life of this patent

Abstract

Claims16