Semi-persistent resource allocation for v2v traffic

A radio base station for allocating radio resources to a vehicular mobile terminal to transmit periodic data in V2X communication, the radio base station comprising:

• a receiver, which, in operation,
• receives, from the vehicular mobile terminal, information related to vehicle parameters supported by the vehicular mobile terminal, and
• receives, from the vehicular mobile terminal, information related to a changed vehicle parameter in response to one of the vehicle parameters in a previous value range changing to be in a different value range;
• and
• a processor, which, in operation,
• determines different possible transmission periodicities of one or more data components of the periodic data based on the information related to vehicle parameters,
• configures a plurality of semi-persistent radio resource configurations based on the different possible transmission periodicities, and
• configures an activation command, based on the information related to the changed vehicle parameter, to activate one or more of the plurality of semi-persistent radio resource configurations for use by the vehicular mobile terminal to transmit the periodic data in V2X communication;
• and
• a transmitter, which, in operation,
• transmits, to the vehicular mobile terminal, information on the plurality of semi-persistent radio resource configurations, and
• transmits, to the vehicular mobile terminal, the activation command.

A method performed by a vehicular mobile terminal to transmit periodic data in V2X communication, the method comprising:

• transmitting, to a radio base station, information related to vehicle parameters supported by the vehicular mobile terminal;
• receiving, from the radio base station, a plurality of semi-persistent radio resource configurations configured by the radio base station based on the information related to vehicle parameters;
• in response to one of the vehicle parameters in a previous value range changing to be in a different value range, transmitting, to the radio base station, information related to the changed vehicle parameter;
• receiving, from the radio base station, an activation command to activate one or more of the plurality of semi-persistent radio resource configurations, the activation command being configured by the radio base station based on the information related to the changed vehicle parameter;
• and
• transmitting the periodic data in V2X communication using a transmission periodicity defined by the activated one or more of the semi-persistent radio resource configurations.

A method performed by a radio base station to allocate radio resources to a vehicular mobile terminal to transmit periodic data in V2X communication, the method comprising:

• receiving, from the vehicular mobile terminal, information related to vehicle parameters supported by the vehicular mobile terminal;
• determining different possible transmission periodicities of one or more data components of the periodic data based on the information related to vehicle parameters;
• configuring a plurality of semi-persistent radio resource configurations based on the different possible transmission periodicities;
• transmitting, to the vehicular mobile terminal, information on the plurality of semi-persistent radio resource configurations;
• receiving, from the vehicular mobile terminal, information related to a changed vehicle parameter in response to one of the vehicle parameters in a previous value range changing to be in a different value range;
• configuring an activation command, based on the information related to the changed vehicle parameter, to activate one or more of the plurality of semi-persistent radio resource configurations for use by the vehicular mobile terminal to transmit the periodic data in V2X communication;
• and
• transmitting, to the vehicular mobile terminal, the activation command.