User terminal, base station, and processor
AssigneeKYOCERA Corporation
InventorsKugo MORITA, Akinori IWABUCHI, Susumu KASHIWASE
Life of this patent
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Abstract
A UE 100 comprises a controller configured to select either a normal mode in which D2D communication is controlled by a network or a public safety mode in which the D2D communication is controlled by the UE 100 instead of the network, as a mode to be applied to the D2D communication. The UE 100 selects either the normal mode or the public safety mode on the basis of a reception situation of a public safety allowance signal and a public safety prohibition signal transmitted depending on a situation of the network.
Claims16
A user terminal in a mobile communication system comprising a network configured to control D2D communication being direct device to device communication, the user terminal comprising:
- a controller configured to select either a first mode in which the D2D communication is controlled by the network or a second mode in which the D2D communication is controlled by the user terminal instead of the network, as a mode to be applied to the D2D communication,
- wherein the controller selects either the first mode or the second mode on the basis of a reception situation of a predetermined signal transmitted depending on a situation of the network.
A base station in a mobile communication system comprising a network configured to control D2D communication being direct device to device communication and the base station included in the network, the base station comprising:
- a transmitter configured to transmit an allowance signal for allowing to select a second mode or a prohibition signal for prohibiting selection of the second mode to a user terminal capable of selecting either a first mode in which the D2D communication is controlled by the network or the second mode in which the D2D communication is controlled by the user terminal instead of the network, as a mode to be applied to the D2D communication;
- and
- a controller configured to control transmission of the allowance signal or the prohibition signal depending on a situation of the network including the base station.
A processor provided in a user terminal in a mobile communication system comprising a network configured to control D2D communication being direct device to device communication, the processor performing:
- a processing of selecting either a first mode in which the D2D communication is controlled by the network or a second mode in which the D2D communication is controlled by the user terminal instead of the network, as a mode to be applied to the D2D communication;
- and
- a processing of selecting either the first mode or the second mode on the basis of a reception situation of a predetermined signal transmitted depending on a situation of the network.
Dependencies are inferred from the claim text.