Abstract: A terminal switching method for switching terminals, in a communication system in which HARQ processing is performed, to which a base station grants a transmission permission, from a terminal A to a terminal B includes notifying the terminal B of aborting of the transmission permission, setting a time point at which an HARQ process whose state of the HARQ processing is a retransmission waiting state with the terminal A is performed as a virtual starting point, setting a retransmission waiting window having a predetermined window length with the virtual starting point being regarded as its starting point, and notifying the terminal B of the transmission permission when there is no HARQ process having the retransmission waiting state with the terminal A, wherein the virtual starting point setting and the window setting are repeated until there is no HARQ process having the retransmission waiting state with the terminal A.

Abstract: A radio base station BTS includes an upper limit value management unit 22 configured to determine and manage a upper limit value common to all mobile stations UE based on a bandwidth capable of being used for transmitting the uplink data in a wired section (Iub) between the radio base station and a radio network controller and a scheduling unit 23 configured to determine an Absolute Grant (AG) to be transmitted to a mobile station UE which is subjected to scheduling of the high-speed uplink communication so as not to exceed the upper limit value. The upper limit value management unit 22 is configured to decrease the upper limit value when a congestion signal in the wired section (Iub) is received for a predetermined number of times during a fit predetermined interval of time.

Abstract: A radio base station (NodeB), wherein a scheduling unit (13) is configured to determine scheduling grant information to be transmit to a mobile station (UE) scheduled for the next scheduling assignment interval based on the predicted range of receivable power at the starting point of the next scheduling assignment interval.

Abstract: A radio base station BTS includes an estimation unit 13 configured to estimate a time when a buffer of a scheduled mobile station UE becomes empty based on a remaining amount of data in the buffer of the mobile station UE, the remaining amount reported by the mobile station, and a sending unit 15 configured to send the mobile station UE a Zero Grant instructing to stop transmission of a data signal via an E-DPDCH based on the estimated time.

Abstract: A mobile communication method includes step for transmitting a first scheduling grant information to a first mobile station UE scheduled in a current scheduling assignment slot, and transmitting a second scheduling grant information to a second mobile station UE to be scheduled in a next TTI by the radio base station Node B at a time of switching between mobile stations UE to be scheduled, the first scheduling grant information instructing to stop transmission of a MAC-e PDU in a next transmission time interval, the first scheduling grant information corresponding to a minimum size of the MAC-e PDU which can contain only one MAC-d PDU.

Abstract: A radio base station NodeB includes a transmission power control unit 13 configured to perform inner-loop transmission power control on an E-DPDCH, a scheduling unit 16 configured to determine AG to be transmitted to a mobile station UE which is subjected to scheduling of an EUL communication at a next TTI so that the total received power satisfies the target total received power, a scheduling grant information transmission unit 17 configured to transmit the AG determined to the mobile station UE which is subjected to scheduling of the EUL communication at a next TTI, and a target total received power setting unit 14 configured to change the target total received power depending on, if the normal uplink communication is provided, or if a plurality of the high-speed uplink communications are provided.

Abstract: A radio base station wherein, when a radio equipment control detects an uplink communication failure on a physical circuit, a downlink communication processing unit is configured to transmit a downlink IQ data for all combinations of antennae and carriers to a radio equipment with all values of the downlink IQ data set to “0,” and a downlink radio equipment is configured to stop a transmission of a downlink signal of all the carriers through all the antenna when the downlink IQ data whose values are all “0” is received.

Abstract: A radio equipment in a radio base station is configured to measure received signal strength of an uplink signal transmitted by a mobile station and includes a TRX function unit configured to transmit IQ data and control information to a radio equipment controller by using a frame including an IQ data region for mapping the IQ data and a control region for mapping the control information, the IQ data being obtained by subjecting the uplink signal to demodulation processing (orthogonal demodulation processing), and the TRX function unit is configured to map information indicating the received signal strength (RSSI) measured by the measurement unit to a fixed region in the control region.

Abstract: A base station includes a scheduling unit and a call reception control unit. The call reception control unit includes a managing unit that updates total resource usage amount based on total resource allocation amount and manages the total resource usage amount, and a decision unit that adds an initial radio resource to be allocated to a new call to the total resource usage amount and decides whether the new call can be accepted. The managing unit updates the total resource usage amount by subtracting a radio resource in response to the release of an existing call that radio resource allocation being not controlled at each transmission time interval. The managing unit manages the total resource usage amount without subtracting a radio resource in response to the release of an existing call that radio resource allocation being controlled at each transmission time interval.

Abstract: The present invention provides a radio base station apparatus that is capable of freely expanding an area, improving the degree of freedom in designing of the area significantly and reducing the equipment investment. The radio base station apparatus includes: a plurality of transmission/reception units which are remotely installed in a service area and to which necessary numbers of carriers and sectors are assigned in accordance with the respective installation areas; a modulation/demodulation unit which can set/modify the soft handover enabled range and modulates/demodulates a signal transmitted/received to/from the transmission reception units; and a selector switch which is connected to the transmission/reception units remotely installed in the service area via cables so as to select connections between the modulation/demodulation unit and the transmission/reception units.

Abstract: Radio base station equipment is connected to radio transmitting/receiving equipment provided in sectors (S), into which a communication area is divided, by an optical fiber (30), and performs radio communication with mobile terminals located in the respective sectors (S) via the radio transmitting/receiving equipment wherein a delay processing section delays a signal for each sector (S) according to a delay correction value obtained by subtracting a delay amount in each sector (S) from a maximum delay amount of a delay amount measured for each sector (S) and a baseband processing section obtains the signal from each sector (S) delayed by the delay processing section by setting a reception window at a position corresponding to the maximum delay amount.

Abstract: A radio base station 200 includes a call process controller 105 and a baseband processor 109. The call process controller 105 notifies the baseband processor 109 of an offset of the baseband resource when accepting the priority call. The baseband processor 109 changes the baseband resource to be allocated to the normal call in a predetermined cycle and applies a resource use restriction based on the offset notified from the call process controller 105, the resource use restriction restricting the baseband resource to be allocated to the normal call within a range defined by subtracting the offset from a total baseband resource.

Abstract: To allow an amplifier to be added or changed to perform a maintenance monitoring control smoothly without causing restriction on the card configuration of the amplifier and the functional section and without causing any influence on the operating amplifier (e.g., suspension of the service). In wireless base station equipment according to an embodiment of the present invention, the amplifiers 3 and the modulation and demodulation equipment 1 have therebetween a monitoring control link for each sector. Each sector is subjected to a monitoring control via the link. The modulation and demodulation equipment 1 and the amplifier 3 of each sector connected thereto have transmission and reception-integrated sections 1A and 3A for terminating the communication, respectively. The information collected in the respective transmission and reception-integrated sections 1A and 3A is transmitted and received among the respective transmission and reception-integrated sections 1A and 3A via the respective links.

Abstract: To provide a base transceiver station and channel rate control method for enabling the base transceiver station to execute stable processing in a radio communication system compliant with an HSDPA communication scheme, a base transceiver station 5 compliant with high speed downlink packet access is comprised of a Uu rate calculating section 16 that obtains radio quality between a radio access network 2 and a mobile terminal 6, a Ui rate calculating section 15 that obtains channel quality between the station 5 and a radio network controller 4, a CPU utilization measurement function section 17 that measures the CPU utilization of the station 5, and a CA calculating section 14 that calculates a permissible data amount using the radio quality, channel quality and CPU utilization.

Abstract: A radio base station includes: a table storage unit storing a table in which an E-TFCI indicating a transport format combination indicator of the physical data channel to be transmitted by a mobile station is associated with ?ed that is used to determine a SG and is an offset value of transmission power of the physical data channel to be transmitted by the mobile station; a parameter selector selecting the ?ed associated with the E-TFCI from the table; and a communication controller determining a SG based on the ?ed thus selected and an E-TFCI associated with the selected ?ed, and controlling transmission power of the mobile station by using the SG thus determined.

Abstract: The radio base station includes a monitoring controller for determining whether to switch between BB cards; and a baseband signal processor for transmitting a suspension request to suspend the transmission of the user data when it is determined that the BB cards are switched, and performing the handover of a processing between the BB cards based on the transmission of the suspension request. The baseband signal processor transmits a capacity allocation or a zero grant requesting to set the transmission rate of the user data to zero.