Sun Patent Trust

Panasonic Intellectual Property Corporation of America

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Godo Kaisha IP Bridge 1

Optis Wireless Technology, LLC

Apple Inc.

Panasonic Intellectual Property Management Co., Ltd.

Masayuki Hoshino

Daichi Imamura

Seigo Nakao

Akihiko Nishio

Hidetoshi Suzuki

Lilei Wang

Ming Xu

Ayako Horiuchi

Yoshihiko Ogawa

Alexander Golitschek Edler Von Elbwart

Yasuaki Yuda

Takashi Iwai

Hui Tong

Katsuhiko Hiramatsu

Atsushi Sumasu

Kenichi Miyoshi

Joachim Loehr

Li Wang

Shinsuke Takaoka

Chi Gao

Tetsuya Yamamoto

Zhi Zhang

Sadaki Futagi

Michael Einhaus

Kazuki Takeda

Sujuan Feng

Prateek Basu Mallick

Ryohei Kimura

Takashi Tamura

Qian Yu

Tomohiro Imai

Hiroki Haga

Lei Huang

Masaru Fukuoka

Takako Hori

Takashi Fukagawa

Takaaki Kishigami

Kazuyuki Miya

Jens Bachmann

Hidenori Matsuo

Toshiyuki Uehara

Ping Luo

Ryo Takahashi

Yuta Seki

Christian Wengerter

Kenichi Higuchi

Atsushi Matsumoto

Toru Oizumi

Masaaki Suzuki

Jun Cheng

Kenichi Kuri

Yoshiko Saito

Tadashi Yoshida

Hiroyuki Uejima

Katsuyoshi Naka

Takashi Toda

Jan Ohlhorst

Takenobu Arima

Takaaki Kisigami

Fumiyuki Adachi

Hidenori Kayama

Junya Yamazaki

Yukari Kobayashi

Xiaohan Xia

Daichl Imamura

Selgo Nakao

Kenichi (deceased) Miyoshi

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

Provided are a user equipment and a wireless communication method for LAA. The user equipment comprises: a receiver operative to receive a UL grant which schedules a subframe for UL transmission; a first circuit operative to perform LBT; a transmitter operative to transmit a PUSCH in the scheduled subframe starting from one available starting position of multiple candidate starting positions in the scheduled subframe if the LBT is successful. According to present disclosure, it is possible to increase the possibility that PUSCH could be sent in the scheduled subframe after LBT.

User equipment and wireless communication method

Provided are wireless communication methods and devices. In one embodiment, a wireless communication method performed by a wireless communication device comprises: transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device, wherein the available resources in the special subframe are different from that in the normal subframe, the data packet includes multiple modulated symbols which are divided into multiple modulated-symbol sets, in each subframe, each OFDM symbol is mapped by one of the modulated-symbol sets, and in every subframe, the modulated symbols in the same modulated-symbol set are mapped onto REs in one OFDM symbol in a fixed order. In another embodiment, multiple repetitions of the data packet are transmitted in each subframe, and in each special subframe, different repetitions are mapped onto REs with cyclic shift.

Wireless communication method and device

If repetition transmission is applied to a response signal for a downlink data signal and an uplink signal, the uplink signal is repeatedly transmitted using a certain number of consecutive subframes starting with a first subframe, at which the repetition transmission of the uplink signal starts, and the response signal is repeatedly transmitted using at least the certain number of consecutive subframes starting with a second subframe, at which the repetition transmission of the response signal starts. The first subframe is set to be the same as the second subframe.

Terminal, base station, transmission method, and reception method

A communication apparatus includes a receiver and a transmitter. The receiver, in operation, receives from a neighboring cell a reference signal mapped to at least one first resource element. No signal is received from a serving cell on the at least one first resource element. The transmitter, in operation, transmits to a base station measurement information obtained based on the reference signal.

Method and communication apparatus for mapping reference signal in wireless communication system

Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information.

Radio reception apparatus, radio transmission apparatus, and radio communication method

The present disclosure provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator generates code words by encoding data, a layer mapping unit places each CW in one or a plurality of layers, a DMRS generator generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.

Terminal device, base station device, retransmission method, and resource allocation method

A base station is disclosed, which is capable of appropriately configuring the timings of data assignment, data transmission and reception, and feedback for a case where the DL and UL sTTI lengths are different from each other. In this base station (), a transmission section () transmits a downlink signal using a first short transmission time interval (sTTI) shortened in length than a TTI and used for downlink; and a reception section () receives an uplink signal using a second sTTI shortened in length than the TTI and used for uplink. When the first sTTI is shorter in length than the second sTTI, the reception section () receives the uplink signal in the second sTTI positioned after a predetermined interval from the transmission timing of the downlink signal, the predetermined interval being configured based on the length of the first sTTI.

Base station, terminal, and communication 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

Provided are an eNB, a UE and wireless communication methods. The eNB, in an embodiment, includes circuitry operative to fill a SPS activation/deactivation field in a DCI with a predetermined pattern of bits; and a transmitter operative to transmit the DCI to a first UE for the first UE to start periodically transmitting signals to a second UE or stop periodically transmitting signals to the second UE based on the SPS activation/deactivation field. The DCI is in a SPS format formed by adopting part or all bits of at least one field of DCI format 5 as the SPS activation/deactivation field, and information supposed to be transmitted in the at least one field is indicated with the assistance of or by RRC or MAC signaling.

Wireless communication with downlink control information having a semi persistent scheduling activation/deactivation field

A repeater generates repetition signals by repeating uplink signals over a plurality of subframes; controller sets a timing for transmitting the repetition signals, based on information indicating a transmission candidate subframe for a sounding reference signal used for measuring an uplink reception quality; and a transmitter transmits the repetition signals at the set timing.

Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of Stransmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of Rtransmitted from the antenna port; a phase inversion unit which inverts the phase of Stransmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of Rtransmitted from an antenna port.

Mobile station and 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

Provided are a wireless device and a wireless communication method in a wireless communication network comprising multiple wireless devices capable of communicating with each other directly, the wireless device comprising: a processing circuitry operative to multiplex data with a scheduling assignment message, into transmission information; and a transmitter operative to transmit the transmission information in a scheduling assignment period, to another wireless device in the wireless communication network, wherein the scheduling assignment message is used for indicating data transmission resource in the scheduling assignment period or in a previous scheduling assignment period.

Wireless device and wireless communication method for scheduling assignment message transmission

A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section () generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section () transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.

Growing community of inventors

Kanagawa, Japan

Masayuki Hoshino