摘要:
A disclosed base station includes a transmission-rate determining unit for determining a transmission rate of a control channel for transmitting an upper-layer control signal, and a transmitter for allocating a predetermined bandwidth to the control channel for transmitting the upper-layer control signal according to the determined transmission rate, and transmitting the signal.
摘要:
An OFDM signal receiving apparatus (30) includes a receiver section (31) configured to perform receiving processing on a received OFDM signal, for each OFDM symbol duration period; a plurality of deinterleaving sections (341 . . . 34n) each configured to perform deinterleaving processing on data acquired through the receiving processing, in a unit of an interleaving block; and a plurality of decoder sections (361 . . . 36n) each configured to perform decoding processing on data outputted from a corresponding one of the plurality of deinterleaving sections (341 . . . 34n). The interleaving block is a part of a transmission time interval block including data to be transmitted in a transmission time interval.
摘要:
A mobile communication system according to the present invention includes: a step A in which a radio base station eNB transmits an uplink scheduling grant including CB-RNTI; and a step B in which when the uplink scheduling grant has been received, according to a comparison result obtained by comparing a predetermined threshold value with the amount of uplink data remaining in the transmission buffer, the mobile station UE determines whether a protocol data unit formed by the uplink data can be transmitted using a shared uplink resource specified by the uplink scheduling grant.
摘要:
A radio communications apparatus having a retransmission function that has a determination portion configured to receive an error detection result obtained for a first packet transmitted to a destination apparatus and determine in a first sub-layer whether the error detection result is a positive acknowledgement; a transmission portion configured to transmit a second packet following the first packet to the destination apparatus; a timer portion configured to measure a predetermined period of time after the second packet is transmitted; and a report portion configured to report to a second sub-layer that is an upper sub-layer of the first sub-layer that the error detection result is the positive acknowledgement when no message is received from the destination apparatus during the predetermined period of time, the message indicating that the error detection result is falsely determined to be the positive acknowledgement.
摘要:
A radio base station according to the present invention includes: a downlink data resumption processing unit configured to transmit an RA preamble assignment signal to a mobile station, when a positioning trigger is detected in a state in which no synchronization is established in an uplink between the radio base station and the mobile station; and a propagation delay calculation unit configured to calculate propagation delay in the uplink, in response to reception of a RA preamble assigned by the RA preamble assignment signal.
摘要:
In a retransmission control method, a transmitting-side apparatus manages an acknowledgement information reception window and the transmitting-side apparatus does not perform the window control processing and the retransmission control processing of a packet on the basis of the acknowledgement information for a sequence number of the packet which is included in the acknowledgement information received from the receiving-side apparatus, when the sequence number takes a value outside a range of the acknowledgement information reception window.
摘要:
A receiving apparatus receives control, pilot and data channels in an uplink. The apparatus includes a data-channel receiving unit for receiving the pilot channel in an antenna gain pattern of a multi-beam having multiple fixed directional beams with respectively different fixed directional directions or of a variable directional beam having a directional direction varying in accordance with the position of a mobile terminal; and a data-channel receiving unit for receiving the data channel in an antenna gain pattern of a multi-beam or a variable directional beam.
摘要:
A controlling method and a radio base station apparatus capable of variably determining a Transmission Time Interval (TTI) length in accordance with a communication environment of a mobile terminal is disclosed. The radio base station apparatus includes a receiving section receiving information via an uplink channel; and a scheduler variably determining a Transmission Time Interval (TTI) length for any one of an uplink shared channel and a downlink shared channel or both based on at least any of a moving speed of a mobile terminal, location of the mobile terminal in a cell, a provided throughput value, and a number of retransmissions obtained from the received information. Preferably, the scheduler includes a TTI length allocation table describing relationships between parameter values and the corresponding TTI length, the parameters being used for estimating the location and/or the moving speed of the mobile terminal.
摘要:
A base station performing a radio communication with a user equipment includes a transmission format determining unit configured to determine a transmission format of a downlink data channel not to be associated by a control channel, based on a downlink reception signal quality measured by the user equipment, a notification unit configured to notify, to the user equipment, the transmission format determined by the transmission format determining unit, and a transmitting unit configured to transmit downlink data to the user equipment via the downlink data channel, by using the transmission format determined by the transmission format determining unit.
摘要:
A disclosed base station includes a transmission-rate determining unit for determining a transmission rate of a control channel for transmitting an upper-layer control signal, and a transmitter for allocating a predetermined bandwidth to the control channel for transmitting the upper-layer control signal according to the determined transmission rate, and transmitting the signal.