Ntt Docomo, Inc.

Daisuke Tanigawa

Hidehiko Oyane

Tatsuro Yajima

Akihito Hanaki

Akihiro Hikuma

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 &#x3b2;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 &#x3b2;ed associated with the E-TFCI from the table; and a communication controller determining a SG based on the &#x3b2;ed thus selected and an E-TFCI associated with the selected &#x3b2;ed, and controlling transmission power of the mobile station by using the SG thus determined.

Radio communication system, radio base station, and mobile station control method

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.

Radio base station apparatus configured to modify a softer handover enabled range

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.

Radio base station, radio equipment, and radio equipment controller

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.

Radio base station, radio equipment control and radio equipment

Wireless base station equipment including a plurality of amplifiers and modulation and demodulation equipment having a monitoring control link with each of the plurality of amplifiers. The modulation and demodulation equipment terminates communications with the plurality of amplifiers and performs a monitoring control of each of the plurality of amplifiers. Each of the of amplifiers includes a plurality of cards as respective functional sections and a transmission and reception-integrated section that collects transmission and reception signals input to and output from each of the plurality of cards and terminates communication with the modulation and demodulation equipment. The modulation and demodulation equipment obtains, from a transmission and reception-integrated section of a corresponding amplifier via a monitoring control link with the corresponding amplifier, information related to the corresponding amplifier. The modulation and demodulation equipment performs the monitoring control based on the obtained information.

Wireless base station equipment and monitoring control method

A radio base stationincludes a call process controllerand a baseband processor. The call process controllernotifies the baseband processorof an offset of the baseband resource when accepting the priority call. The baseband processorchanges 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, 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.

Radio base station and communication control method

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.

Radio base station, radio communication control system, and radio communication control method

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 (), 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.

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Kawasaki, Japan

Daisuke Tanigawa