Communication apparatuses and communication methods for utilization of released resource

A communication apparatus comprising:

• circuitry which, in operation, determines release information relating to a reserved resource, the reserved resource being reserved for a transmission from the communication apparatus;
• and
• a transmitter which, in operation, transmits the release information to another communication apparatus.

A communication method comprising:

• receiving release information relating to a reserved resource, the reserved resource being reserved for a transmission from a communication apparatus;
• and
• selecting a resource from a plurality of resource candidates when a subsequent transmission is to be done, wherein the plurality of resource candidates includes the reserved resource.

A communication method comprising:

• determining release information relating to a reserved resource, the reserved resource being reserved for a transmission;
• and
• transmitting the release information to a communication apparatus.