System and Method for Peer to Peer Communications in Cellular Communications Systems
First Claim
Patent Images
1. A method for communications device operations, the method comprising:
- receiving a peer list at a communications device, wherein the peer list comprises a list of reachable communications devices and device-to-device (D2D) capability information for the reachable communications devices;
selecting a peer from the peer list;
sending a content request comprising an indication of a content to a communications controller serving the communications device; and
receiving the content from the peer over a channel established by the communications controller.
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Abstract
A system and method for peer-to-peer communications in cellular communications systems are provided. A method for communications device operations includes receiving a peer list at a communications device, where the peer list includes a list of reachable communications devices and device-to-device (D2D) capability information of the reachable communications devices, selecting a peer from the peer list, sending a content request comprising an indication of a content to a communications controller serving the communications device, and receiving the content from the peer over a channel established by the communications controller.
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Citations
45 Claims
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1. A method for communications device operations, the method comprising:
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receiving a peer list at a communications device, wherein the peer list comprises a list of reachable communications devices and device-to-device (D2D) capability information for the reachable communications devices; selecting a peer from the peer list; sending a content request comprising an indication of a content to a communications controller serving the communications device; and receiving the content from the peer over a channel established by the communications controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A communications device comprising:
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a receiver configured to receive a peer list comprising a list of reachable communications devices and D2D capability of the reachable communications devices; a peer select unit coupled to the receiver, the peer select unit configured to select a peer from the peer list; a content request unit coupled to the peer select unit and to the receiver, the content request unit configured to generate a content request comprising an indication of a content; and a transmitter coupled to the peer select unit and to the content request unit, the transmitter configured to send the content request to a communications controller serving the communications device, wherein the receiver is further configured to receive the content from the peer over a channel established by the communications controller. - View Dependent Claims (22, 23, 24)
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25. A method for communications controller operations, the method comprising:
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maintaining a list of communications devices served by a communications controller, wherein the list of communications devices comprises device-to-device (D2D) capabilities of the communications devices; receiving a request for a peer list from a communications device, wherein the request comprises an indication of a content; providing the peer list to the communications device, wherein the peer list is a subset of the list of communications devices; receiving a content request from the communications device, the content request comprising the indication of the content and a peer; establishing a channel between the communications device and the peer; and coordinating communications between the communications device and the peer. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A communications controller comprising:
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a peer list unit configured to maintain a list of communications devices coupled to the communications controller, wherein the list of communications devices comprises device-to-device (D2D) capabilities of the communications devices; a receiver configured to receive a request for a peer list from a communications device, wherein the request comprises an indication of a content, and to receive a content request from the communications device, the content request comprising an indication of the content and a peer; a transmitter coupled to the receiver and to the peer list unit, the transmitter configured to transmit the peer list to the communications device, wherein the peer list is generated by the peer list unit based on the indication of the content, and wherein the peer list is a subset of the list of communications devices; and a scheduler coupled to the receiver and to the transmitter, the scheduler configured to establish a channel between the communications device and the peer, and to coordinate communications between the communications device and the peer. - View Dependent Claims (38, 39, 40, 41, 42)
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43. A method for communications device operations, the method comprising:
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receiving a request for a content from a peer; determining if the content has pending requests and if the content is being served; sending the content to the peer over a channel if the content has no pending requests and if the content is not being served, wherein the channel is a device-to-device channel; sending the content to the peer over a point-to-multipoint channel if the content has pending requests, wherein the point-to-multipoint channel is a device-to-device channel; and sending the content to the peer over an existing point-to-multipoint channel if the content is being served, wherein the existing point-to-multipoint channel is a device-to-device channel. - View Dependent Claims (44, 45)
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Specification