Nec Corporation

Kabushiki Kaisha Toshiba

Siemens Aktiengesellschaft

Telefonaktiebolaget Lm Ericsson (Publ)

Huawei Technologies Co., Limited

Denso Corporation

Ntt Docomo, Inc.

Nortel Networks Corporation

Lenovo Innovations Limited (Hong Kong)

Kabushiki Kaisha

Nec Coproration

Ntt Mobile Communications Network, Inc.

Nokia Solutions and Networks Gmbh & Co. Kg

Toshifumi Sato

Yasushi Maruta

Mamoru Sawahashi

Kenichi Higuchi

Yassin Aden Awad

Motohiro Tanno

Naotaka Oda

Yoshihisa Kishiyama

Takashi Oyagi

Yoshikazu Kakura

Shousei Yoshida

Motoya Iwasaki

Kengo Oketani

Armin Splett

Kojiro Hamabe

Katsuji Kimura

Hiroki Tanaka

Jacob Österling

Naoto Ishii

Kenji Koyanagi

Motoki Ide

Mikio Izumi

Yukitsuna Furuya

Jacob Kristian Osterling

Hirotaka Sakai

Tatsuyuki Maekawa

Yasushi Goto

Yukio Yokoyama

Takahiro Nobukiyo

Koji Yamasaki

Takashi Mochizuki

Tetsuhiko Miyatani

Akihito Morimoto

Franz Heiser

Masahiro Matai

Hizuru Nawata

Atsushi Fujiwara

Tomohiro Dohi

Hiroyasu Kuramatsu

Eric Georgeaux

Toshiaki Ito

Tadashi Miyazaki

Masataka Yanagisawa

Toshifumi Hayashi

Hideyuki Kitazono

Shigeru Odanaka

Werner Korte

Peter Merz

Lin Zhibin

Lan Haiqing

Yang Ganghua

Patrick Lagrange

Takayuki Shibata

Mafumi Miyashita

Yoshitsugu Shimazu

Thomas Ostman

Osamu Takizawa

Hideo Ohmura

Akio Sumita

Teruji Tarumi

Klas Sjerling

Thomas Östman

Atsuhiko Koizumi

Kenichiro Yagawa

Yoshihiko Kasai

Soichiro Morimoto

Hiroaki Kenjyo

Tsuyoshi Masugi

Hans Kröner

Naoto Odagawa

Sadayuki Anma

Norihiro Umemura

Rolf Kramer, Legal Representative

Torbjöm Aarflot

Bernd Hassler

Atsushi Tsuyuki

Hans Kroner

Torbjörn Aarflot

Jacob Osterling

Hans KRÖNER

A communication system is presented in which a base station is provided for communicating with a plurality of mobile communication devices in a cellular communication system. The base station operates one of more communication cells and communicates subframes, with each of the plurality of communication devices within the cell(s), each comprising the communication resources of a control region for communicating a control channel and the communication resources of a data region for communicating a respective data channel. The base station communicates a control channel having a first DMRS sequence in a control region of some subframes and a control channel having a second DMRS sequence in a control region of other subframes. The second control channel may be transmitted in a radio beam focused spatially in a direction of a communication device. The first control channel may be transmitted omnidirectionally throughout the cell(s).

Communication system

A communication system is presented in which a base station is provided for communicating with a plurality of mobile communication devices in a cellular communication system. The base station operates one of more communication cells and communicates subframes, with each of the plurality of communication devices within the cell(s), each comprising the communication resources of a control region for communicating a control channel and the communication resources of a data region for communicating a respective data channel. The base station communicates a control channel having a first DMRS sequence in a control region of some subframes and a control channel having a second DMRS sequence in a control region of other subframes. The second control channel may be transmitted in a radio beam focussed spatially in a direction of a communication device. The first control channel may be transmitted omnidirectionally throughout the cell(s).

The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Base station apparatus and communication control method

Provided is a wireless communication system that efficiently carries out communications between a wireless control device and a wireless device. A wireless control device () has a wireless resource allocation unit () and a wireless resource instruction unit (). The wireless resource allocation unit () allocates wireless resources that are used by a wireless device () when wirelessly communicating with a wireless terminal (). The wireless resource instruction unit () sends, to the wireless device (), instructions for causing the allocated wireless resources to be used. The wireless device () has a wireless signal processing unit () and a wireless transmission unit (). On the basis of the instructions from the wireless control device (), the wireless signal processing unit () performs processing, for performing wireless communications using the allocated wireless resources, on data to be sent to the wireless terminal (). The wireless transmission unit () converts signals processed by the wireless signal processing unit () to wireless signals, and transmits the wireless signals to the wireless terminal ().

Wireless communication system and wireless communication method

A traveling reactor power monitoring system includes a drive control unit configured to drive a motor and move a traveling probe in a guide tube by driving the motor, a torque sensor configured to measure a drive torque of the motor, and a drive torque monitoring unit that generates an alarm when the measured drive torque exceeds a predefined upper threshold, and that bypasses generating the alarm for a predefined bypass time, the predefined bypass time starting at a time of starting driving the motor.

Traveling reactor power monitoring system and method for monitoring driving torque

According to one embodiment, reactor oscillation power ranges monitor includes: a receiving unit which receives LPRM signals; an exclusion processing unit which searches the LPRM signals allocated to the cell for an LPRM signal corresponding to an exceptional condition; an averaging unit which averages the allocated LPRM signals; a time averaging unit which calculates a time average of the average flux value; a normalized value calculation unit which divides the average flux value by the time averaged flux value; an initialization unit which outputs an initialization signal identifying the cell allocated to an LPRM signal which is changed to correspond or not correspond to the exceptional condition; and a determination unit which derives at least one of amplitude and cycle of a power oscillation from the normalized value.

Nuclear reactor oscillation power range monitor, and method and program therefor

A TIP monitoring control equipment has: a process computer, a TIP control panel, and data transmitting unit. The process computer includes a operation input unit, a TIP scanning unit, a first TIP level data transmitting and receiving unit, and a TIP level data storage unit. To a first TIP level data transmitting and receiving unit, an LPRM level signal, an APRM level signal and TIP level data accumulated in the TIP control panel are input in synchronization with a TIP position signal. The TIP control panel includes a TIP driving control unit, a TIP level processing unit, a TIP position processing unit, a TIP level data accumulation unit and a second TIP level data transmitting and receiving unit. The second TIP level data transmitting and receiving unit transmits TIP level data accumulated in the TIP level data accumulation unit to the process computer via the data transmission unit.

TIP system and TIP monitoring control equipment

A memoryof a pilot processing circuitholds in advance a pilot sequence converted into a frequency region signal obtained by subjecting a pilot signal symbol transmitted in one block to Ntx_p-point DFT. The pilot sequence held in the memoryis subjected to a series of processes including a roll-off filtering by a roll-off filter circuit, subcarrier mapping process by subcarrier mapping circuit, an Ndft_p-point IDFT operation by an IDFT circuit, and a cyclic prefix adding process by a cyclic prefix adding circuit

Single carrier transmission system, communication device, and single carrier transmission method using for them

Communications system with multiple PDCCH with associated multiple DMRS patterns

Transmission channel estimation is performed for NT&#xd7;NR reception signals and estimated transmission channel values are thereby output. The estimated transmission channel values are divided into N groups of NT&#xd7;M estimated transmission channel values and a covariance matrix with M rows and N columns is obtained for each of the estimated transmission channel value groups. The N covariance matrixes are averaged over a predetermined range in terms of at least a time or a frequency (first averaging). Eigenvectors are generated based on respective N averaging outputs. Transmission channels between base station antennas and terminal antennas are generated from the eigenvectors and the estimated transmission channel values. Covariance matrixes are obtained for the generated transmission channels. The covariance matrixes are averaged over a different range from the range used in the first averaging (second averaging) and a beam forming weight is obtained by combining the generated eigenvectors.

Information processing apparatus and information processing method, and non-transitory computer readable medium storing information processing program

An interface, apparatus, and method are described for communication between a radio control (REC) node and first and second radio equipment (RE) nodes in a radio base station that transceives information over radio interface using multiple antenna carriers. The REC node is separate from and coupled to the first RE node by a first transmission link, and the second RE node coupled to the first RE by a second transmission link. Both control information and user information intended for communication between the REC node and the first RE node and the REC and the second RE node are conveyed over the first transmission link. The first RE node also conveys information between the REC and second RE node. Many advantageous features are described.

Interface, apparatus, and method for communication between a radio equipment control node and one or more remote radio equipment nodes

Growing community of inventors

Tokyo, Japan

Toshifumi Sato