Radio resource control for D2D communication
AssigneeMicrosoft Technology Licensing, LLC
InventorsHaitao Li, Yuantao Zhang
Life of this patent
Estimating the term…
Abstract
This disclosure generally relates to radio resource control for D2D communication. In one embodiment, a master UE of the D2D communication may obtain radio resource information of a slave UE before performing radio resource configuration for the D2D communication between the master UE and the slave UE. Based on the radio resource information, the master UE may configure radio resource for the D2D communication. In this way, radio resource configuration may be performed for both the D2D communication and cellular communication without violating the slave UE's radio capability.
Claims19
A method implemented by master user equipment comprising:
- obtaining radio resource information associated with a slave user equipment in cellular communication, the radio resource information comprising capability information and information on an existing cellular radio resource configuration currently used by the slave user equipment;
- performing a first device-to-device radio resource configuration for device-to-device (D2D) communication between the master user equipment and the slave user equipment based on the capability information and the existing cellular radio resource configuration;
- and
- determining a remaining capacity of the slave user equipment that is useable for a second device-to-device radio resource configuration for future device-to-device communications based on the existing cellular radio resource configuration and the first device-to-device radio resource configuration.
A method implemented by a base station comprising:
- responsive to a predetermined condition of device-to-device (D2D) communication between a master user equipment and a slave user equipment being met, determining radio resource information of the slave user equipment in cellular communication, the radio resource information comprising capability information and information on an existing cellular radio resource configuration currently being used by the slave user equipment;
- transmitting the radio resource information to the master user equipment;
- receiving information on an existing device-to-device resource configuration currently being used by the slave user equipment from the slave user equipment;
- and
- ensuring that a future cellular radio resource configuration does not exceed a radio capability of the slave user equipment based on the existing device-to-device resource configuration.
User equipment comprising:
- a receiver configured to receive first cellular radio resource information associated with a slave user equipment in cellular communication, the first cellular radio resource information comprising capability information and information on a first cellular radio resource configuration being used by the slave user equipment;
- and
- a controller configured to configure a radio resource configuration for device-to-device (D2D) communication with the slave user equipment based on the capability information and information on the first cellular radio resource configuration, the controller further arranged to directly update the radio resource configuration for the D2D communication with the slave user equipment using second cellular radio resource information exchanged with the slave user equipment in control plane signaling, the second cellular radio resource information comprising information on a second cellular radio resource configuration being used by the slave user equipment.
Dependencies are inferred from the claim text.