Sun Patent Trust

Panasonic Intellectual Property Corporation of America

Panasonic Corporation

Kabushiki Kaisha Toshiba

Godo Kaisha IP Bridge 1

Panasonic Holdings Corporation

Nippon Television Network Corp.

Apple Inc.

Kabushiki Kaishi Toshiba

Thermovonics Co., Ltd.

Yoshihiko Ogawa

Daichi Imamura

Takashi Iwai

Akihiko Nishio

Seigo Nakao

Sadaki Futagi

Tomofumi Takata

Masayuki Hoshino

Atsushi Matsumoto

Ayako Horiuchi

Katsuhiko Hiramatsu

Atsushi Sumasu

Shinsuke Takaoka

Hidetoshi Suzuki

Lilei Wang

Kenichi Miyoshi

Masaru Fukuoka

Kazuki Takeda

Alexander Golitschek Edler Von Elbwart

Yasuaki Yuda

Tetsuya Yamamoto

Tomohumi Takata

Kiyoyuki Kawai

Seijiro Yasuki

Ankit Bhamri

Tadashi Yoshida

Tomoya Nunome

Shotaro Maki

Yoshihide Kimata

Masaya Yamasaki

Xuan Tuong Tran

Lei Huang

Yoshio Sugimori

Eitaro Nishihara

Madhav Gupta

Ko Sato

Yang Kang

Yihui Li

Keiko Hirayama

Hiroshi Yoshimura

Kenichi Douniwa

Yohei Hamakawa

Atsuo Shono

Zhixiong Wu

Li Wang

Masayuki Orihashi

Toru Oizumi

Shutai Okamura

Michael Einhaus

Quan Kuang

Hideo Watanabe

Shozo Okasaka

Tien Ming Benjamin Koh

Ryohei Kimura

Tien-Ming Benjamin Koh

Fumikazu Kiya

Motohiro Sakai

Fumiyuki Adachi

Kazuhiko Muguruma

Hisakatsu Ito

Fumio Hisano

Selgo Nakao

Hisakatsu Itoh

Hirohusa Tezuka

Daichl Imamura

Kenichi (deceased) Miyoshi

Tien Ming Koh

Daishi Imamura

Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit () sets whether the terminal () thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal () is set as a Non-CoMP terminal, the hopping pattern calculating unit () calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal () is set as a CoMP terminal, the hopping pattern calculating unit () calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit () generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.

Communication apparatus and reference signal receiving method

Provided is a base station that performs feedback with regard to data transmission. The base station includes a downlink feedback information (DFI) generation unit and a transmitter. On the basis of a resource allocation configuration that was configured by a terminal, the DFI generation unit determines a transmission method for feedback information that includes a response signal regarding uplink data. The transmitter transmits the feedback information on the basis of the transmission method.

Base station, terminal, and communication method

The present disclosure aims at allowing a demodulation reference signal (DMRS) pattern suitable for a terminal to be selected from among a plurality of DMRS patterns including Legacy DMRS and Reduced DMRS. Disclosed is a terminal including: reception sectionthat receives uplink control information; control sectionthat determines a specific mapping pattern from among a plurality of mapping patterns for an uplink DMRS on the basis of the control information; and DMRS generating sectionthat generates a DMRS according to the specific mapping pattern.

Terminal and communication method

In an operation in a license-exempt band (unlicensed band), the present invention contributes to the provision of a mobile station, a base station, a transmission method and a receiving method which suitably transmit and receive a signal. The mobile stationincludes: a transmission unitwhich transmits an uplink signal; and a control unitwhich, when a first number indicating a first resource amount that can be used in the transmission of the uplink signal includes a third number, which is different from a specific second number, as a prime factor, controls the transmission of a signal of a fourth number that does not include the third number as the prime factor by using a second resource.

Mobile station, base station, transmission method and receiving method

This terminal comprises a reception circuit that receives parameters pertaining to a license-exempt band, and a control circuit that determines information included in uplink control information on the basis of the parameters.

This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal, which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.

Communication apparatus and communication method thereof

Disclosed are a wireless communication base station device and a division number determination method that improves the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.

Integrated circuit

Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.

Wireless communication device and method for controlling transmission power

A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.

Radio communication apparatuses and radio communication method

Disclosed are a wireless transmitter and a reference signal transmission method that improve channel estimation accuracy. In a terminal, which transmits a reference signal using n (n is a non-negative integer 2 or greater) band blocks (which correspond to clusters here), which are disposed with spaces therebetween in a frequency direction, a reference signal controller switches the reference signal formation method of a reference signal generator between a first formation method and a second formation method based on the number (n) of band blocks. In addition, a threshold value setting unit adjusts a switching threshold value based on the frequency spacing between band blocks. Thus, the reference signal formation method can be selected with good accuracy and, as a result, channel estimation accuracy is further improved.

Communication apparatus and reference signal reception method

An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.

Terminal and communication method thereof

This invention is a transmission device capable of enhancing the reception characteristics of a terminal when employing transmit diversity using two antenna ports in an ePDCCH. In a base station () that transmits a reference signal to a terminal () using two antenna ports, a setting unit (), on the basis of the reception quality of the terminal, sets as the aforementioned two antenna ports either a first antenna port pair for which DMRS (reference signals) do not undergo mutual code multiplexing, or a second antenna port pair for which the DMRS do undergo code multiplexing. A transmitter () transmits the DMRS from the two antenna ports set in the setting unit ().

Transmission device, receiving device, transmission method, and receiving method

A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.

Integrated circuit, apparatus and method for communication using resource block groups

Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit () which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit () which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit () which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

Integrated circuit for controlling radio communication

A communication apparatus includes a receiver and circuitry. The receiver receives configuration information for beam failure recovery (BFR) of a plurality of secondary cells (SCells) operating in a network. The circuitry performs beam failure detection (BFD) and reports based on the configuration information.

Group-based SCell beam failure recovery

Growing community of inventors

Kanagawa, Japan

Yoshihiko Ogawa