Base station apparatus, user equipment terminal, and method in mobile communication system

A method to be used in a base station apparatus to be used in a mobile communication system where Persistent Scheduling is performed, the method comprising:

• a providing step of providing radio resources every predetermined period based on the Persistent Scheduling with respect to a specific user equipment terminal;
• a radio communication step of performing radio communications with the specific user equipment terminal using the provided radio resources;
• a determination step of determining whether either uplink or downlink packet data of the specific user equipment terminal are required to be retransmitted;
• and
• a generation step of generating a downlink L1/L2 control signal including scheduling information designating the radio resources to be used for the retransmission of the packet data, wherein
• when determining that it is required to retransmit the uplink or downlink packet data of the specific user equipment terminal, the downlink L1/L2 control signal is transmitted to the specific user equipment terminal and the packet data to be retransmitted are transmitted using the radio resources designated by the scheduling information.

A base station apparatus to be used for a mobile communication system where Persistent Scheduling is performed, the base station apparatus comprising:

• a radio communication unit configured to perform radio communications with a user equipment terminal using radio resources provided every predetermined period based on the Persistent Scheduling;
• a determination unit configured to determine whether uplink or downlink packet data of the user equipment terminal are to be transmitted in a talk-spurt period transmitted every predetermined period;
• and
• a generation unit configured to, when determining that the uplink or downlink packet data are not to be transmitted in the talk-spurt period, generate a downlink L1/L2 control signal including scheduling information designating the radio resources to be used for the transmission of the uplink or downlink packet data, wherein
• when determining that the uplink or downlink packet data are not to be transmitted in the talk-spurt period, the downlink L1/L2 control signal is transmitted to the user equipment terminal and the uplink or downlink packet data are transmitted using the radio resources designated by the scheduling information.

A method to be used in a base station apparatus to be used in a mobile communication system where Persistent Scheduling is performed, the method comprising:

• a providing step of providing radio resources every predetermined period based on the Persistent Scheduling with respect to a specific user equipment terminal;
• a radio communication step of performing radio communications with the specific user equipment terminal using the provided radio resources;
• a determination step of determining whether uplink or downlink packet data of the specific user equipment terminal are to be transmitted in a talk-spurt period transmitted every predetermined period;
• and
• a generation step of, when determining that the uplink or downlink packet data are not to be transmitted in the talk-spurt period, generating a downlink L1/L2 control signal including scheduling information designating the radio resources to be used for the transmission of the uplink or downlink packet data of the specific user equipment terminal, wherein
• when determining that the uplink or downlink packet data are not to be transmitted in the talk-spurt period, the downlink L1/L2 control signal is transmitted to the specific user equipment terminal and the uplink or downlink packet data are transmitted using the radio resources designated by the scheduling information.

A user equipment terminal to be used for a mobile communication system where Persistent Scheduling is performed, the user equipment terminal comprising:

• a transmission/receiving unit configured to perform radio communications with a base station apparatus using radio resources provided at each predetermined period;
• and
• a determination unit configured to determine whether downlink packet data transmitted to the user equipment terminal are received within a talk-spurt period repeated at each predetermined period, wherein
• when determining that the downlink packet data are not to be received in the talk-spurt period, packet data are extracted by performing a demodulation process, wherein
• the downlink packet data are transmitted using a plurality of candidate radio resources provided at each predetermined period.

A method to be used in a user equipment terminal to be used in a mobile communication system where Persistent Scheduling is performed, the method comprising:

• a radio communication step of performing radio communications with a base station apparatus using radio resources provided at each predetermined period;
• a determination step of determining whether downlink packet data transmitted to the user equipment terminal are received within a talk-spurt period repeated the at each predetermined period, wherein
• when determining that the downlink packet data are not to be received in the talk-spurt period, packet data are extracted by performing a demodulation process, wherein
• the downlink packet data are transmitted using a plurality of candidate radio resources provided at each predetermined period.