Dynamic band selection for interference minimization in direct device to device communications

摘要

Systems and methods are disclosed for selecting resources for direct device to device (D2D) communications in a cellular communication network. Preferably, resources for the direct D2D communications are selected to minimize, or at least substantially reduce, interference that results from the direct D2D communications in the cellular communication network. In general, either an uplink resource or a downlink resource of the cellular communication network is selected for a direct D2D communication link between a first wireless device and a second wireless device in order to minimize, or at least substantially reduce, interference caused to a third wireless device that uses the same uplink and downlink resources in the same and/or a neighboring cell of the cellular communication network.

主权项

1. A network node configured to select a resource for a direct device to device communication link between a first wireless device and a second wireless device in a cellular communication network, comprising:
a transceiver sub-system configured to enable wireless communication; and a processing sub-system associated with the transceiver sub-system configured to: select either an uplink resource or a downlink resource of the cellular communication network as a resource for the direct device to device communication link between the first wireless device and the second wireless device located in a first cell of the cellular communication network served by a first base station based on:
a link quality metric that represents a link quality between the first and second wireless devices for the uplink resource of the cellular communication network;a link quality metric that represents a link quality between the first and second wireless devices for the downlink resource of the cellular communication network; anda link quality metric that represents a link quality between a third wireless device and a base station for the downlink resource that occurs when the first wireless device transmits to the second wireless device using the downlink resource; and inform the first and second wireless devices of the resource selected for the direct device to device communication link.