METHOD FOR DISCOVERY IN DEVICE-TO-DEVICE COMMUNICATIONS AND APPARATUS FOR THE SAME
First Claim
1. A method for device-to-device discovery, performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal, comprising:
- receiving a device-to-device discovery participation message from the discoverable terminal;
requesting a gateway to measure proximity between the discovery terminal and the discoverable terminal;
receiving a proximity measurement result from the gateway; and
requesting the discovery terminal and the discoverable terminal to initiate a procedure of device-to-device discovery when the proximity measurement result satisfies a predetermined threshold.
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Accused Products
Abstract
A method for discovery in device-to-device communications and an apparatus for the same are disclosed. The method performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal may include receiving a device-to-device discovery participation message from the discoverable terminal, requesting a gateway to measure a proximity between the discovery terminal and the discoverable terminal, receiving a proximity measurement result from the gateway, and requesting the discovery terminal and the discoverable terminal to initiate a procedure of device-to-device discovery when the proximity measurement result satisfies a predetermined threshold. Thus, the procedure of device-to-device discovery may be performed efficiently.
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Citations
20 Claims
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1. A method for device-to-device discovery, performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal, comprising:
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receiving a device-to-device discovery participation message from the discoverable terminal; requesting a gateway to measure proximity between the discovery terminal and the discoverable terminal; receiving a proximity measurement result from the gateway; and requesting the discovery terminal and the discoverable terminal to initiate a procedure of device-to-device discovery when the proximity measurement result satisfies a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for device-to-device discovery, performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal, comprising:
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receiving device-to-device communication initiation request messages from the discovery terminal and the discoverable terminal; transmitting a device-to-device communication configuration request message requesting a gateway to configure device-to-device communications between the discovery terminal and the discoverable terminal; and receiving a device-to-device communication configuration response message indicating a completion of configuration of device-to-device communications between the discovery terminal and the discoverable terminal from the gateway when a proximity measurement result satisfies a predetermined threshold. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for measuring proximity between terminals, performed in a base station, comprising:
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allocating radio resources for transmitting a reference signal for measuring proximity to a first terminal; allocating radio resources for receiving the reference signal for measuring proximity to a second terminal; obtaining information on measurement result of the reference signal from the second terminal; and determining whether to start device-to-device communications between the first terminal and the second terminal based on the information on measurement result of the reference signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification