WIRELESS COMMUNICATION TERMINAL, WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND PROCESSING METHOD FOR REQUESTING UPLINK RESOURCE

摘要

If an uplink resource is not granted, wireless communication terminal, when the uplink resource occurs in the corresponding wireless communication terminal, transmits a scheduling request using a dedicated scheduling request resource of a second cell that is smaller in cell coverage than a first cell, and if grant of the uplink resource in response to the scheduling request is not performed, the wireless communication terminal transmits a random access preamble and thus performs a random access procedure that requests the grant of the uplink resource from a wireless communication device.

主权项

1. A wireless communication terminal in which, among two types of cells that make up a component career set that is used in career aggregation, a dedicated scheduling request resource that is used when transmitting a scheduling request for requesting grant of an uplink resource to a wireless communication device capable of communicating with the wireless communication terminal is set for a second cell that is smaller in cell coverage than a first cell, the wireless communication terminal comprising:
a DSR management section configured to, when uplink data occurs in the wireless communication terminal, perform processing that requests the grant of the uplink resource to the wireless communication device by transmitting the scheduling request to the wireless communication device using the dedicated scheduling request resource of the second cell, if the uplink resource is not granted to the wireless communication terminal; and a RACH management section configured to perform a random access procedure that requests the grant of the uplink resource to the wireless communication device by transmitting a random access preamble to the wireless communication device, if the grant of the uplink resource in response to the scheduling request is not performed.