Multiple semi persistent scheduling in a wireless network

A method comprising:

• transmitting, by a wireless device to a first base station, at least one first message comprising capability parameters indicating that the wireless device supports multiple uplink semi persistent scheduling (SPS) configurations for vehicle-to-base station communications;
• transmitting, by the wireless device to the first base station, SPS traffic assistance information indicating a logical channel for SPS traffic and a message size for uplink SPS traffic;
• receiving at least one second message comprising:
• an uplink SPS radio network temporary identifier (RNTI);
• at least one uplink SPS configuration parameter;
• and
• an SPS configuration index for the at least one uplink SPS configuration parameter;
• and
• receiving, based on the SPS traffic assistance information, a downlink control information (DCI) corresponding to the uplink SPS RNTI, wherein the DCI comprises the SPS configuration index;
• and
• transmitting, at least one transport block, employing the at least one uplink SPS configuration parameter.

A method comprising:

• transmitting, by a first base station to a second base station and in response to the first base station making a handover decision for a wireless device, a first message comprising:
• capability parameters, received from the wireless device, indicating whether the wireless device supports multiple uplink semi persistent scheduling (SPS) configurations for vehicle-to-base station communications;
• and
• configuration parameters of at least one SPS determined based on SPS traffic assistance information, received from the wireless device, indicating a logical channel for SPS traffic and a message size for uplink SPS traffic;
• receiving, from the second base station and based on the SPS traffic assistance information, a second message comprising an information element indicating the configuration parameters of the at least one SPS, the configuration parameters comprising:
• an uplink SPS radio network temporary identifier (RNTI);
• at least one uplink SPS configuration parameter;
• and
• an SPS configuration index for the at least one uplink SPS configuration parameter;
• and
• transmitting, to the wireless device, a third message comprising the information element indicating the configuration parameters of the at least one SPS configuration.