摘要:
A mobile station device includes, but is not limited to: a generation unit. The generation unit generates a gap for suspending communication between the mobile station device and a base station device located in a serving cell and for monitoring a neighboring cell. A predetermined interval based on a measurement type is previously set for a gap. The predetermined interval is common between the mobile station device and the base station device. The mobile station device autonomously detects necessity of generation of the gap for monitoring a neighboring cell, and notifies the base station device of a result of the autonomous detection.
摘要:
A mobile station device of the present invention includes: a request-signal generating unit that sets a plurality of channel quality indications to be included in a report according to a given pattern to request gap generation for suspending communication for a handover and monitoring another base station device; a gap-generation-request-signal transmitting unit that transmits the report of the channel quality indications having the given pattern to the base station device; a control-signal receiving unit that receives, from the base station device, a control signal indicative of suspension or resumption of the report during a period in which the report is transmitted; and a transmission control unit that controls the gap generation according to the control signal.
摘要:
A wireless communication method, comprising: allocating, by a base station device, elements of a sequence having an index indicative of a communication parameter to synchronization channel symbols; generating, by the base station device, a synchronization channel while maintaining symmetry of the sequence; transmitting, by the base station device, signals including the synchronization channel; receiving the signals by a mobile station device, correcting, by the mobile station device, the signals based on the symmetry of the sequence; and extracting, by the mobile station device, the communication parameter.
摘要:
A mobile communication system of the present invention generates a gap section based on a channel quality indication, and determines the timing or the frequency of generating the gap section based on a given parameter between the base station device and the mobile station device.
摘要:
When communication of a type, such as a priority call, to be prioritized over a normal call has occurred, appropriate measurement of CSG cells is performed. There is provided a mobile station apparatus applied to a mobile communication system that includes a small base station apparatus which makes only mobile station apparatuses registered in advance accessible in normal case, and on the other hand, makes unregistered mobile station apparatuses accessible in non-normal case, wherein the mobile station apparatus is provided with at least: a cell information management section 103 that outputs cell type determination information for distinguishing a normal base station apparatus from a small base station apparatus; and a reception signal processing section 102 that selects whether or not to perform measurement of a channel state between the mobile station apparatus and the small base station apparatus, based on cell type determination information and access-class information indicating a priority of communication, and performs measurement of the channel state according to the selection result.
摘要:
By changing a scrambling code to be multiplied with a secondary synchronization channel for a different sub-frame number, the number of codes required to be retained in a mobile station apparatus is reduced and also a circuit scale and a computation amount thereof are reduced, while an effect of causing interference from a neighboring cell to be random is being maintained. There are provided a primary synchronization channel generation unit (50) generating a primary synchronization channel according to base station apparatus information, a secondary synchronization channel generation unit (51) generating a secondary synchronization channel composed of a combination of a first signal and a second signal according to the base station apparatus information, a first scrambling code generation unit (52) generating a first scrambling code to be multiplied with the secondary synchronization channel according to the primary synchronization channel, and a second scrambling code generation unit (53) generating a second scrambling code to be multiplied with the second signal according to the first signal.
摘要:
A mobile communication system includes a mobile station device and a base station device. The base station device includes a cell identification information transmission unit which transmits cell identification information of base station devices transmitting radio signals of the same synchronization channel, to the mobile station device when there are at least two base station devices transmitting radio signals of the same synchronization channel within a predetermined communication area. The mobile station device includes a measurement result transmission unit which performs a measurement process based on the cell identification information of the base station devices and transmits the measurement result acquired by the measurement process to the base station device.
摘要:
In a wireless communication method, a base station device allocates elements of a sequence having an index indicative of a communication parameter to synchronization channel symbols generates a synchronization channel while maintaining symmetry of the sequence, and transmits signals including the synchronization channel. A mobile station device restores synchronization of the signals which are faded corrects the signals based on the symmetry of the sequence, and extracts the communication parameter.
摘要:
A mobile station device that communicates with a base station device, the mobile station device including: a determination unit which determines whether to request the base station device to provide control information of a small base station device accessed by the mobile station device or not; a first transmission unit, when the determination unit determines that the control information is to be requested, which sets information of the small base station device in a control information request message and transmits the control information request message to the base station device; a first reception unit which receives a response message transmitted from the base station device; and a measurement control execution unit which executes measurement control according to control information set in the response message received by the first reception unit.
摘要:
A base station device uses a downlink control channel and instructs a mobile station device to perform a random access procedure. The mobile station device switches, according to whether or not random access parameters are included in parameters of a secondary cell that has been allocated to the mobile station device, between a first random access procedure in which information in a carrier indicator field included in the downlink control channel is not used for selection of a cell in which a random access procedure is performed, and a second random access procedure in which information in the carrier indicator field included in the downlink control channel is used for selection of a cell in which a random access procedure is performed.