METHOD AND APPARATUS FOR DEVICE-TO-DEVICE COMMUNICATION IN PARTIAL NETWORK ENVIRONMENT
First Claim
1. 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.
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Accused Products
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.
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Citations
16 Claims
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1. A method for transmitting and receiving a signal in a device of a mobile communication system, the method comprising steps of:
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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. - View Dependent Claims (2, 3, 4)
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5. A device for transmitting and receiving a signal in a mobile communication system, the device comprising:
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a transceiver configured to transmit and receive a signal; and a control unit configured to receive, from a base station, a first message containing one or more of synchronization information and resource allocation information, to transmit, to other device, a second message containing the received synchronization information and resource allocation information, and to receive, from the other device, a third message for a random access based on the synchronization information and the resource allocation information. - View Dependent Claims (6, 7, 8)
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9. A base station for transmitting and receiving a signal in a mobile communication system, the device comprising:
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a transceiver configured to transmit and receive a signal; and a control unit configured to create a first message containing one or more of synchronization information and resource allocation information for a random access of a device, and to transmit the created message to a first device, wherein a second message created based on information contained in the first message is transmitted to a second device by the first device, and wherein a third message for a random access based on the synchronization information and the resource allocation information is transmitted to the first device from the second device. - View Dependent Claims (10, 11, 12)
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13. A device for transmitting and receiving a signal in a mobile communication system, the device comprising:
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a transceiver configured to transmit and receive a signal; and a control unit configured to receive, from other device, a first message containing synchronization information and resource allocation information for a random access, and to transmit, to the other device, a second message for a random access based on the synchronization information and the resource allocation information. - View Dependent Claims (14, 15, 16)
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Specification