摘要:
One aspect of the present invention relates to a mobile apparatus, comprising: a first bandwidth measurement unit configured to measure radio conditions of a serving cell and a neighbor cell in a first bandwidth; a second bandwidth measurement unit configured to measure the radio conditions of the serving cell and the neighbor cell in a second bandwidth greater than the first bandwidth; a control unit configured to selectively activate the first bandwidth measurement unit and the second bandwidth measurement unit; and a cell transition unit configured to perform cell transition from the serving cell to the neighbor cell based on the radio conditions of the serving cell and the neighbor cell measured by the first bandwidth measurement unit and the second bandwidth measurement unit, wherein the control unit switches between the first bandwidth measurement unit and the second bandwidth measurement unit at a first switch frequency.
摘要:
One aspect of the present invention relates to a mobile apparatus, comprising: a first bandwidth measurement unit configured to measure radio conditions of a serving cell and a neighbor cell in a first bandwidth; a second bandwidth measurement unit configured to measure the radio conditions of the serving cell and the neighbor cell in a second bandwidth greater than the first bandwidth; a control unit configured to selectively activate the first bandwidth measurement unit and the second bandwidth measurement unit; and a cell transition unit configured to perform cell transition from the serving cell to the neighbor cell based on the radio conditions of the serving cell and the neighbor cell measured by the first bandwidth measurement unit and the second bandwidth measurement unit, wherein the control unit switches between the first bandwidth measurement unit and the second bandwidth measurement unit at a first switch frequency.
摘要:
A data transmission method according to the present invention includes the steps of: (A) adding a first CRC code to transmission data; (B) dividing the transmission data to which the first CRC code has been added into a plurality of encoded bit sequences; (C) adding a second CRC code to at least one of the divided encoded bit sequences; (D) performing error correction encoding processing on the encoded bit sequences; and (E) transmitting the encoded bit sequences on which the error correction encoding processing has been performed.
摘要:
There is disclosed a mobile communication terminal equipped with a multipath interference canceller for canceling multipath interference, comprising number-of-samples controlling unit for controlling a number of samples to be sampled from a received signal, channel matrix generating unit for generating a channel matrix on the basis of sample data of samples as many as the number controlled by the number-of-samples controlling means and, interference canceling emit for canceling multipath interference on the basis of the channel matrix generated by the channel matrix generating unit.
摘要:
A mobile station includes a handover controller. When the mobile station simultaneously communicates with a plurality of radio base stations by using first channels and communicates only with a certain one of the plurality of radio base stations by using a second communication channel, and even when the radio quality of the certain radio base station communicating by using the second communication channel becomes deteriorated, the handover controller maintains communications with the certain radio base station communicating by using the second communication channel.
摘要:
The packet reception section of the cellular phone receives a packet transmitted from the base station and the transmission error detection section detects a transmission error of the received packet. When the transmission error is detected, the retransmission request transmission section transmits a retransmission request to request the retransmission of the packet in which the transmission error is detected, to the base station, and the sample timing control section shifts the sample timing of the A/D converter by a half clock.
摘要:
A mobile station and a base station are disclosed. The mobile station, when transmitting a reservation request signal and a data packet, controls radio parameters of reservation request signal transmission and data packet transmission so that communication quality required by the data packet transmission is satisfied, and system capacity is maximized. Further, the mobile station transmits the reservation request signal and data packet, the radio parameters of which are controlled, to the base station.
摘要:
A communication method for a radio communication system employing an enhanced uplink scheme includes the steps of determining a transmission power control bit for controlling transmission power of a downlink control channel; generating an uplink control signal including the transmission power control bit; and transmitting the uplink control signal to a base station. In the determining step, whether an indicator channel indicating acknowledgement or negative acknowledgement for an uplink data channel is receivable at a quality level better than a predetermined value is evaluated, and the transmission power control bit of the indicator channel is determined based on the evaluation result.
摘要:
When the diversity reception is cut, communications with the base station are continued. When it is judged by the judgment section of the mobile communication terminal that a predetermined disconnection requirement for disconnecting diversity reception is satisfied, the gain control section of the digital baseband circuitry 20 reduces the gain of the AGC14B contained in the RF receiver circuitry 10B constituting the disconnection target by a fixed value at fixed times. Diversity reception is cut after the level of the signal output by the AGC14B has reached zero.
摘要:
Improve efficiency of sampling of an A/D converter while suppressing power consumption. A packet receiving section receives six packets included in one frame transmitted from a base station, a sample timing control section shifts sample timing of the A/D converter by a half clock between former three packets and latter three packets out of six packets included in one frame.