Panasonic Intellectual Property Corporation of America

Sun Patent Trust

Panasonic Corporation

Godo Kaisha IP Bridge 1

Optis Wireless Technology, LLC

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Holdings Corporation

Apple Inc.

Takashi Iwai

Daichi Imamura

Yoshihiko Ogawa

Akihiko Nishio

Sadaki Futagi

Atsushi Matsumoto

Tomofumi Takata

Seigo Nakao

Hidetoshi Suzuki

Masayuki Hoshino

Tomohumi Takata

Ayako Horiuchi

Shinsuke Takaoka

Yoshio Urabe

Tetsuya Yamamoto

Katsuhiko Hiramatsu

Kenichi Miyoshi

Kazunori Inogai

Masaru Fukuoka

Atsushi Sumasu

Tomoya Nunome

Lilei Wang

Yasuaki Yuda

Jun Minotani

Kazuki Takeda

Shotaro Maki

Joachim Loehr

Takashi Tamura

Quan Kuang

Tadashi Yoshida

Takashi Aramaki

Hongchao Li

Takayuki Nakano

Alexander Golitschek Edler Von Elbwart

Ankit Bhamri

Daisuke Yamada

Joachim Lohr

Shozo Okasaka

Martin Feuersanger

Takashi Toda

Yihui Li

Selgo Nakao

Daichl Imamura

Katsuiko Hiramatsu

Hiroyuki Kanaya

Ryutaro Hashi

Martin Feuersänger

Daishi Imamura

Akihiro Nishio

Joachim LÖHR

Yoshihiko Owaga

ne present invention improves reference signal transmission efficiency. A terminal is equipped with: a reception circuit for receiving information indicating some of a plurality of candidate unit-time resources for non-periodic transmission of reference signals; and a control circuit for, on the basis of the information, controlling the allocation of time resources to be used in the transmission of reference signals.

Terminal, base station, and communication method for aperiodic transmission of reference signals

Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit () of the radio communication device (SR initiator) () determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device () belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit () transmits the SR signal by using the determined transmission resources.

Radio communication device and radio communication method

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

This communication device is provided with: a reception circuit that receives information pertaining to at least one of a plurality of modes which pertain to the allocation of a common data signal to a plurality of sub-carrier groups; and a control circuit that, on the basis of the information pertaining to the at least one mode, controls the synthesis of the signal allocated to the plurality of sub-carrier groups.

Communication device and communication method

In the present invention, a terminal can appropriately perform a random-access process. In a terminal (), a wireless transmission unit () transmits a random-access signal including at least a data part. A rank determination unit () controls the configuration of the data part on the basis of a parameter regarding the transmission of the random-access signal.

Transmission device, reception device, transmission method, and reception method for random access communication

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

A base station () is provided with a transmitter and a receiver. The transmitter () transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver () receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.

In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.

Communication apparatus and communication method

This wireless communication control device is a first wireless control device provided with: a control circuit that causes the waveform of a reference signal transmitted to a wireless communication device in coordination with a second wireless communication control device to differ, either in the frequency domain or the time domain, from the waveform of a reference signal transmitted to the wireless communication device by the second wireless communication control device; and a transmission circuit that transmits the reference signal.

Wireless communication control device and wireless communication control method to coordinate reference signal waveforms

Provided is a terminal capable of improving utilization efficiency of an uplink resource in an unlicensed band. In a terminal (), a transmission control unit () sets, in accordance with at least one of a data size and retransmission of uplink data, a first end position of a time resource which is set for the uplink data to a second end position. A transmission unit () transmits the uplink data on the basis of the second end position.

Terminal, base station, transmitting method, and receiving method

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

A terminal includes circuitry and a transmitter. The circuitry, in operation, determines a first transmission power for a first uplink signal and a second transmission power for a second uplink signal by prioritizing allocation of a transmission power to the second transmission power for the second uplink signal, responsive to, in a first transmission time interval (TTI) where the first uplink signal is transmitted, the second uplink signal being transmitted in a second TTI that is shorter than the first TTI. The transmitter, in operation, transmits the first uplink signal with the determined first transmission power and transmits the second uplink signal with the determined second transmission power.

Terminal and communication method

According to the present invention, a base station can dynamically change a repetition transmission method as appropriate. In a base station (), a repetition control unit () determines a data repetition pattern for a terminal (). A transmission unit () repeatedly transmits data (repetition transmission) on the basis of the repetition pattern. The data repetition pattern corresponds to control information to be reported to the terminal () by dynamic signaling.

Transmission device, reception device, transmission method, and reception method

Growing community of inventors

Ishikawa, Japan

Takashi Iwai