Device-to-device communication management in mobile communication networks
First Claim
1. A method of operating a mobile communication network comprising a plurality of radio base stations serving user equipment devices, the mobile communication network managing communications between user equipment devices, the method comprising:
- a) commanding, by a first radio base station of said plurality of radio base stations, a first user equipment device served by it to transmit a probe signal;
b) providing, by the first radio base station and to a second user equipment device, device parameters for receiving the probe signal transmitted by the first user equipment device, the device parameters including at least a preamble index and a time/frequency slot index;
c) measuring, by the first radio base station, the probe signal transmitted by the first user equipment device;
d) receiving, by the first radio base station, a second measure of the probe signal transmitted by the first user equipment device, the second measure being performed by the second user equipment device;
e) comparing, by the first radio base station, the first measure and the second measure, andf) commanding, by the first radio base station, a switch of a communication of the first user equipment device passing through radio base stations of the mobile communication network towards the second user equipment device to a direct device-to-device communication based on a result of said comparison.
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Accused Products
Abstract
A method of operating a mobile communication network including plural radio transceiver stations serving and managing communications between mobile communication devices. The method includes: a first radio transceiver station commanding, to a first mobile communication device, transmission of a probe signal; the first radio transceiver station providing to a second mobile communication device parameters useful to the second mobile communication device for receiving the probe signal; the first radio transceiver station performing a first measuring the probe signal; the first radio transceiver station receiving a second measure of the probe signal, performed by the second mobile communication device; the first radio transceiver station comparing the first and second measures; the first radio transceiver station commanding a switch of the communication of the first mobile communication device towards the second mobile communication device to a direct device-to-device communication based on a result of the comparing.
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Citations
33 Claims
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1. A method of operating a mobile communication network comprising a plurality of radio base stations serving user equipment devices, the mobile communication network managing communications between user equipment devices, the method comprising:
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a) commanding, by a first radio base station of said plurality of radio base stations, a first user equipment device served by it to transmit a probe signal; b) providing, by the first radio base station and to a second user equipment device, device parameters for receiving the probe signal transmitted by the first user equipment device, the device parameters including at least a preamble index and a time/frequency slot index; c) measuring, by the first radio base station, the probe signal transmitted by the first user equipment device; d) receiving, by the first radio base station, a second measure of the probe signal transmitted by the first user equipment device, the second measure being performed by the second user equipment device; e) comparing, by the first radio base station, the first measure and the second measure, and f) commanding, by the first radio base station, a switch of a communication of the first user equipment device passing through radio base stations of the mobile communication network towards the second user equipment device to a direct device-to-device communication based on a result of said comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23)
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22. A method of operating a mobile communication network comprising a plurality of radio base stations serving user equipment devices, the mobile communication network managing communications between user equipment devices, the method comprising:
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a) commanding, by a radio base station of said plurality of radio base stations and to a first user equipment device, a transmission of a probe signal; b) providing, by the radio base station to a second user equipment device, parameters for receiving the probe signal transmitted by the first user equipment device, the device parameters including at least a preamble index and a time/frequency slot index; c) measuring, by the radio base station, the probe signal transmitted by the first user equipment device; d) receiving, by the radio base station, a second measure of the probe signal transmitted by the first user equipment device, the second measure being performed by the second user equipment device; e) comparing, by the radio base station, the first measure and the second measure; f) commanding, by the radio base station and to the second user equipment device, a transmission of a probe signal; g) providing, by the radio base station and to the first user equipment device, parameters useful to the first user equipment device for receiving the probe signal transmitted by the second user equipment device; h) performing, by the radio base station, a third measure of the probe signal transmitted by the second user equipment device; i) receiving, by the radio base station, a fourth measure of the probe signal transmitted by the second user equipment device, the fourth measure being performed by the first user equipment device; j) comparing, by the radio base station, the third measure and the fourth measure, and k) based on results of said compare the first measure with the second measure and of said compare the third measure with the fourth measure; commanding, by the radio base station, a switch of a communication of the first user equipment device towards the second user equipment device and the communication of the second user equipment device towards the first user equipment device, from a communication passing through the radio base stations of the mobile communication network to a direct device-to-device communication or vice-versa, or commanding, by the radio base station, a switch of a communication of the first user equipment device towards the second user equipment device or a switch of the communication of the second user equipment device towards the first user equipment device from the communication passing through the radio base stations of the mobile communication network to the direct device-to-device communication or vice-versa, or maintaining, by the radio base station, a communication of the first user equipment device towards the second user equipment device and the communication of the second user equipment device towards the first user equipment device as the communication passing through the radio base stations of the mobile communication network, or as the direct device-to-device communication.
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24. A method of operating a user equipment device configured to communicate over a mobile communication network which comprises a plurality of radio base stations for serving user equipment devices, the method comprising:
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a) transmitting, by the user equipment device, a probe signal, in response to a command from a serving radio base station of said plurality of radio base stations that is serving the user equipment device; b) receiving, by the user equipment device, parameters for receiving a probe signal transmitted by a further user equipment device, the parameters being provided by the serving radio base station, the parameters including at least a preamble index and a time/frequency slot index; c) performing, by the user equipment device, a measure of a probe signal transmitted by the further user equipment device; d) providing, by the user equipment device and to the serving radio base station, the measure of the probe signal transmitted by the further user equipment device, wherein the serving radio base performs its own measurement of the probe signal, and e) switching, by the user equipment device, a communication towards the further user equipment device or/and from the further user equipment device to a direct device-to-device communication in response to a command from the serving radio base station, or f) switching, by the user equipment device, a communication towards the further user equipment device to a communication passing through the radio base stations of the mobile communication network in response to a command from the radio base station. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification