Panasonic Intellectual Property Corporation of America

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Matsushita Electric Ind. Co., Ltd.

Yoshio Urabe

Lei Huang

Rojan Chitrakar

Takashi Iwai

Michael Hong Cheng Sim

Hitoshi Takai

Tomohumi Takata

Tomohiro Kimura

Hidetoshi Yamasaki

Yutaka Murakami

Mikihiro Ouchi

Tomofumi Takata

Hong Cheng Michael Sim

Jun Minotani

Isamu Yoshii

Kazuhiro Ando

Koichiro Tanaka

Kenichi Mori

Kenji Miyanaga

Masataka Irie

Junichi Morita

Hiroshi Takahashi

Tsutomu Mukai

Naganori Shirakata

Tomoya Nunome

Ken Naka

Takayuki Nakano

Atsushi Matsumoto

Hideki Nakahara

Shuya Hosokawa

Koji Kai

Chalermphol Apichaichalermwongse

Shouichi Koga

Akihiro Tatsuta

Kensuke Yoshizawa

Yasuo Harada

Koji Imamura

Youhei Koide

Naoto Oka

Yanyi Ding

Takenori Sakamoto

Masakazu Nishino

Shinichiro Ohmi

Ippei Kanno

Yoshinobu Matsumura

Hiroshi Hayashino

Teruaki Hasegawa

Toyoki Kawahara

Weijie Liu

Shigeru Soga

Hisateru Kobatake

Yukihiro Omoto

Kouya Watanabe

Shunsuke Nagayasu

Hiroyuki Kanaya

Ryutaro Hashi

Hong Cheng Sim

Apichaichalermwongse Chalermphol

The objective of the present invention is to suppress interference on an access point as a result of terminal-to-terminal communication. This terminal is provided with: a control circuit which performs transmission power control of a second link with another terminal, on the basis of a parameter relating to the state of a first link with an access point; and a transmitting circuit which transmits signals in accordance with the transmission power control.

Terminal, and communication method

A communication method of the present disclosure comprises transmitting a sounding frame comprising a training signal; and receiving a first feedback frame from a communication partner device, the first feedback frame comprising first beamforming feedback information, wherein the first feedback frame is transmitted together with at least one second feedback frame by multiuser transmission.

Communication method and communication apparatus

Communication devices and methods for multi-band traffic streams are provided. One exemplary embodiment provides a multi-band communication device which includes at least a plurality of transceivers and Media Access Control (MAC) circuitry. In operation, the transceivers each transmit signal frames on different ones of a plurality of frequency bands. The MAC circuitry is coupled to the transceivers and, in operation, receives a multi-band block acknowledgement frame on one of the plurality of frequency bands acknowledging the signal frames transmitted on the plurality of frequency bands. Another exemplary embodiment provides MAC circuitry which in operation generates and transmits a multi-band block acknowledgement frame on one of the plurality of frequency bands acknowledging the signal frames received on the plurality of frequency bands.

Communication devices and communication methods for multi-band traffic streams

An communication apparatus of the present disclosure comprises a receiver that receives a Trigger frame for allocating resource units (RUs) for random access and another frame including Random Access parameter element that comprises a first field indicating an OFDMA contention window (OCW) minimum value (OCWmin) and a second field indicating an OCW maximum value (OCWmax); and control circuitry that controls Uplink OFDMA-based Random Access (UORA) procedure using the OCWmin and the OCWmax.

Orthogonal frequency division multiple access communication apparatus and communication method

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

The present disclosure provides communication apparatus and communication method for transmission over combinations of multiple resource units. The communication apparatus comprises: circuitry, which, in operation, generates a physical layer protocol data unit (PPDU) comprising a signal field and a data field, the signal field comprising a resource unit (RU) allocation field and one or more user specific field and the data field comprising one or more physical layer service data unit (PSDU); and a transmitter which, in operation, transmits the generated PPDU, wherein a single PSDU of the one or more PSDU is transmitted over a RU combination, and whether two or more RUs of the RU combination share a single low density parity check tone mapper depends on the size of the two or more RUs of the RU combination.

Communication apparatus and communication method for transmission over combinations of multiple resource units

The present disclosure provides communication apparatus and communication method for trigger-based uplink multi-user transmission. A communication apparatus is provided, the communication apparatus comprising: circuitry, which in operation, generates a trigger frame comprising a common info field and a plurality of user info fields; and a transmitter, which in operation, transmits the generated trigger frame; wherein each of the plurality of user info fields comprises a first field which indicates whether a resource unit (RU) adaptation procedure is disabled for another communication apparatus addressed by the each of the plurality of user info field and a second field which indicates a RU or RU combination allocated to the another communication apparatus.

Communication apparatus and communication method for trigger-based uplink multiuser transmission

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

A communication apparatus includes circuitry configured to generate an uplink (UL) single-user (SU) partial bandwidth transmission packet using a first format that contains a first preamble and a data field, wherein the first preamble includes a high efficiency signaling B (HE-SIG-B) field containing resource unit (RU) allocation information indicating one of a plurality of RU arrangements and includes a plurality of user fields; and a transmitter configured to transmit the UL SU partial bandwidth transmission packet to an access point (AP). The one of the plurality of RU arrangements indicates a plurality of RUs which respectively correspond to the plurality of user fields, and one RU of the plurality of RUs is an RU allocated to the AP and other RU(s) of the plurality of RUs are RU(s) unallocated to the AP. The first format is also used for a downlink (DL) multi-user (MU) transmission.

Communication apparatus and communication method

An transmission apparatus of the present disclosure comprises a transmission signal generator which, in operation, generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource unit allocation information and a user-specific field that carries per-user allocation information for one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which, in operation, transmits the generated transmission signal.

Transmission apparatus and transmission method for transmitting a control signal in a wireless communication system

Communication devices and methods for multi-link setup and link maintenance are provided. One exemplary embodiment provides a first station (STA) included in a first plurality of STAs affiliated with a first Multi-link Device (MLD), the first STA comprising: circuitry, which in operation, generates a request frame, the request frame comprising request information; and a transmitter, which in operation, transmits the request frame to a second STA to request a multi-link setup, wherein the second STA is included in a second plurality of STAs affiliated with a second MLD, and wherein the multi-link setup establishes one or more links between one or more STAs of the first plurality of STAs and corresponding one or more STAs of the second plurality of STAs based on the request information.

Communication apparatus and communication method for multi-link setup and link maintenance

The present disclosure provides communication apparatus and communication method for enhanced direct link communication. A communication apparatus is configured to communicate wirelessly with an access point (AP) on a first channel, the communication apparatus comprising: circuitry, which, in operation, generates a channel use permission request frame, the channel use permission request frame comprising information indicating the communication apparatus, another communication apparatus and a second channel that is different from the first channel; a transmitter, which, in operation, transmits the generated channel use permission request frame to the AP to seek permission from the AP to use the second channel for direct link communication with the another communication apparatus; and a receiver, which, in operation, receives a channel use permission response frame from the AP permitting use of the second channel, wherein the communication apparatus is further configured to communicate with the another communication apparatus on a direct link in the second channel after receiving the channel use permission response frame.

Communication apparatus and communication method for enhanced direct link communication

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.

A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.

Transmitting apparatus for transmitting an OFDM signal generated by performing IFFT processing on a preamble and one or more subframes into which pilot signals are inserted

A multi-band communication device includes: one or more transceiver circuitries, each of which in operation transmits and receives data on a plurality of channels in different frequency bands; and a band configuration circuitry operative to change a configuration of any one of the transceiver circuitries based on configuration information received from a multi-band Access Point (AP). The configuration information specifies one of the frequency bands as a Primary band and the other frequency bands as Secondary band(s). The transceiver circuitry operating on the Primary band is used as a default circuitry for communication with the AP.

Communication apparatus and communication method for multi-band transmission

Growing community of inventors

Nara, Japan

Yoshio Urabe