BASE STATION DEVICE, MOBILE STATION DEVICE, PROGRAM, UPLINK SYNCHRONIZATION REQUESTING METHOD, AND SYNCHRONIZATION-SHIFT MEASUREMENT SIGNAL TRANSMITTING METHOD

摘要

A mobile station device that receives downlink control information which is used to selectively provide downlink scheduling or a random access order, on a physical downlink control channel from a base station device. The mobile station device also transmits a random access preamble using a random access channel to the base station device based on receiving the downlink control information which provides a random access order, where the downlink control information provides a downlink resource allocation in a case that the downlink control information is used to provide the downlink scheduling and where a preset value is set for a field of the downlink resource allocation in a case that the downlink control information is used to provide the random access order.

主权项

1. A mobile station device included in a mobile communication system, the mobile station device comprising:
a processor; and memory in electronic communication with the processor, wherein instructions stored in the memory are executable to: receive control information having a downlink control information format, on a physical downlink control channel from a base station device, wherein the downlink control information format is used with a same total number of bits for downlink scheduling or random access order, in a case that the downlink control information format is used for the downlink scheduling, the control information provides a downlink resource assignment, and in a case that the downlink control information format is used for the random access order, a preset bit value is set for a field of the downlink resource assignment.