Panasonic Intellectual Property Corporation of America

Sun Patent Trust

Panasonic Corporation

Panasonic Intellectual Property Corporalion of America

Ayako Horiuchi

Akihiko Nishio

Hidetoshi Suzuki

Seigo Nakao

Daichi Imamura

Lilei Wang

Alexander Golitschek Edler Von Elbwart

Masayuki Hoshino

Toru Oizumi

Kazuki Takeda

Yasuaki Yuda

Takashi Iwai

Tetsuya Yamamoto

Kenichi Miyoshi

Yoshihiko Ogawa

Sujuan Feng

Atsushi Sumasu

Yoshiko Saito

Tomoya Nunome

Katsuhiko Hiramatsu

Quan Kuang

Tomohumi Takata

Hiroaki Morino

Shotaro Maki

Joachim Loehr

Kenichi Kuri

Tomohiro Imai

Michael Einhaus

Prateek Basu Mallick

Ankit Bhamri

Sadaki Futagi

Takako Hori

Tadashi Yoshida

Yuichi Kobayakawa

Atsushi Matsumoto

Shinsuke Takaoka

Naoya Shibaike

Takashi Tamura

Hidenori Matsuo

Koji Yamamoto

Madhav Gupta

Yihui Li

Tomohiko Mimura

Christian Wengerter

Masayuki Orihashi

Tomofumi Takata

Masaaki Suzuki

Shutai Okamura

Takashi Aramaki

Hongchao Li

Takeshi Kanazawa

Hiroki Haga

Alexander Golitschek Edler Von Elbwar

Xiaohan Xia

Hideshi Taki

A first process (Step 4) of equalizing the sizes of control information between a first format for a first search space and a second format for a second search space and a second process (Procedure B) of equalizing the sizes of control information between a third format and the first format or the second format are carried out in a stepwise manner.

Base station, terminal, and communication method

In a base station, control circuitry determines, based on an offset for defining a frequency position of a narrowband allocated to an MPDCCH and a resource block group size of a system band, allocations of a first EPDCCH set and a second EPDCCH set that constitute the MPDCCH. The MPDCCH is a PDCCH for MTC. The second EPDCCH set has a different number of PRBs from the first EPDCCH set. A transmitter transmits a control signal according to the allocations of the first EPDCCH set and the second EPDCCH set. Further, the control circuitry controls a number of RBGs in which both the first EPDCCH set and the second EPDCCH set are allocated to be zeto or one.

Base station, terminal, transmission method, and reception 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.

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.

A repetition unit () performs a repetition for mapping a data signal and a demodulation reference signal (DMRS) repeatedly at a symbol level over a plurality of subframes. A signal allocation unit () maps, in the a plurality of subframes, the repeated DMRS to symbols other than symbols corresponding to an SRS resource candidate, which is a candidate for a resource to which a sounding reference signal (SRS) to be used to measure an uplink received signal quality is to be mapped. A transmission unit () transmits an uplink signal (PUSCH) including the DMRS and the data signal over the a plurality of subframes.

Communication apparatus and transmission method for transmitting a demodulation reference signal

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

Disclosed is an integrated circuit for controlling a mobile station. The integrated circuit includes: transmission circuitry, which, in operation, transmits uplink channels of a first cell group and a second cell group, wherein a cell group includes one or more cells; and power control circuitry, which is coupled to the transmission circuitry and which, in operation, controls a transmission power of the uplink channels of the second cell group, wherein, in response to simultaneous transmission of: the uplink channel(s) of the first cell group on which uplink control information is multiplexed; and a plurality of reference signals on the uplink channels of the second cell group. The power control circuitry uniformly reduces the transmission power of the uplink channels of the second cell group based on a transmission power of the uplink channel(s) of the first cell group.

Communication apparatus and communication method for configuring resource region candidates and mapping downlink control information to same

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 base station is provided with: a control circuit which determines a disposition method for a downlink control channel signal in at least one among a first period before a timing based on a carrier sense and a second period after the timing based on the carrier sense on the basis of information about at least one among the number of times a downlink control channel signal is blind-decoded and the number of resources for channel estimation; and a transmission circuit which transmits the downlink control channel signal on the basis of the determined disposition method.

UEs each monitor a search space in multiple CORSETs and appropriately detect a DCI. In a base station (), a DCI generator () selects one of multiple cases each indicating a combination of CORSETs to be monitored by a terminal () among multiple control channel regions (CORSETs). A transmitter () indicates, by higher-layer signaling, configuration information indicating the multiple cases, and indicates the selected case by dynamic signaling.

A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.

Communication apparatus and communication method for receiving control information over a search space

A terminal () is provided with a control circuit (A) and a transmitting circuit (B). The control circuit (A) determines an arrangement, with respect to a side link data channel, of second control information related to first control information transmitted in the side link, on the basis of the arrangement of a reference signal in the data channel and the arrangement of a control channel. The transmitting circuit (B) transmits the data channel in accordance with the determined arrangement.

Terminal, and communication method

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

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.

Growing community of inventors

Kanagawa, Japan

Ayako Horiuchi