Apparatus and method to enable device-to-device (D2D) communication in cellular networks
AssigneeIntel Corporation
InventorsJong-Kae Fwu, Alexey Khoryaev, Mikhail Shilov, Apostolos Papathanassiou
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Abstract
An apparatus and method of allowing user equipment to transmit information directly with other user equipment, using a device-to-device mode is disclosed herein. A device-to-device blank subregion is defined where device-to-device information can be transmitted without interference from other user equipment. The device-to-device blank subregion may be set up such that it is only used in an exclusive mode if a device-to-device cluster is considered highly interfering. A device may join a device-to-device network through the use of a beacon transmission interval, a control transmission interval, and a data transmission interval.
Claims10
A method for reducing interference in a device-to-device cluster operating within a Long Term Evolution (LTE) cell, said method comprising:
- defining a device-to-device region within an LTE frame structure;
- defining a device-to-device blank sub-region (DBS) within the device-to-device region;
- wherein
- the device-to-device cluster comprises a plurality of User Equipment (UEs) configured to communicate directly to another UE;
- the DBS comprises a subset of available resources within the LTE cell;
- within the defined DBS, an evolved Node B (eNB) associated with the LTE cell transmits minimal information;
- and
- within the defined DBS, the plurality of UEs are configured to transmit information directly to another UE.
A system for implementing device-to-device communications in a Long Term Evolution (LTE) cell comprising:
- an evolved Node B configured to:
- define a device-to-device region within an LTE frame structure;
- define a device-to-device blank sub-region (DBS) within the device-to-device region;
- and
- a plurality of User Equipment (UEs) configured to communicate directly to another UE;
- wherein,
- the DBS comprises a subset of available resources within the LTE cell;
- within the defined DBS, the evolved Node B transmits minimal information;
- and
- within the defined DBS, the plurality of UEs are configured to transmit information directly to another UE.
Dependencies are inferred from the claim text.