Abstract: A communication apparatus comprising: circuitry, which, in operation, generates a transmission signal that includes a data field, the data field carrying an aggregated medium access control protocol data unit (A-MPDU) that is segmented into one or more code block; and a transmitter which, in operation, transmits the transmission signal to another communication apparatus; and wherein the A-MPDU comprises one or more A-MPDU subframe that are mapped to the one or more code block, such that an A-MPDU subframe not soliciting immediate acknowledgement and an A-MPDU subframe soliciting immediate acknowledgement are not mapped into a single code block.

Abstract: The present invention enables more efficient control of Multi-AP coordination. A base station, according to the present invention, comprises: a control circuit that generates shared information that is shared among a plurality of users and includes information pertaining to unassigned resources, and individual user information specific to each of the plurality of users; and a transmission circuit that transmits a control signal comprising the shared information and the individual user information.

Abstract: The present disclosure provides communication apparatus and communication method for 6 GHz band frequency coordination. A communication apparatus is provided, the communication apparatus comprising: a receiver, which, in operation, receives information identifying an operating channel of an access point (AP) in a channel that is different from the operating channel, the information further indicating whether transmission of a probe request frame before receiving an enabling signal in the operating channel is allowed; and circuitry, which, in operation, determines from the information whether to generate a probe request frame for transmission before receiving the enabling signal in the operating channel; and wherein the circuitry is further configured to scan for the enabling signal in the operating channel without transmitting the probe request frame, based on a determination that transmission of the probe request frame before receiving the enabling signal in the operating channel is not allowed.

Abstract: A transmission apparatus of the present disclosure comprises a signal generator which, in operation, generates a transmission signal that comprises a data field containing a WUR (Wake Up Radio) Mode Setup frame; wherein a field of a WUR Mode element included in the WUR Mode Setup frame contains the information on Group IDs (Identifiers) assigned by an AP (Access Point) to the station comprising the transmission apparatus; and a transmitter which, in operation, transmits the generated transmission signal.

Abstract: The present disclosure provides a communication apparatus comprising: circuitry, which, in operation, generates a transmission signal that includes a signal field and a data field, the signal field indicating one or more user-specific allocations in the data field, wherein an aggregate medium access control protocol data unit (A-MPDU) transmitted in each of the one or more user-specific allocations is segmented into one or more code blocks; a transmitter, which, in operation, transmits the generated transmission signal; and a receiver, which, in operation, receives a null data packet (NDP) or a medium access control (MAC) frame carrying hybrid automatic repeat request (HARQ) feedback information for the one or more code blocks.

Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.

Abstract: This base station is provided with: a control circuit that generates information relating to a terminal group among a plurality of terminals, said terminal group being a target of transmission by non-orthogonal multiple access; and a transmission circuit that transmits the information relating to the terminal group during a period in which control information addressed to the plurality of terminals is transmitted.

Abstract: A transmission apparatus of the present disclosure comprises a signal generator which, in operation, generates a transmission signal that includes a data field containing a WUR (Wake Up Radio) frame; wherein an address field of the WUR frame contains a first identifier if the WUR frame is unicast WUR Wake Up frame, or a second identifier if the WUR frame is multicast WUR Wake Up frame, or a third identifier if the WUR frame is broadcast WUR Wake Up frame; wherein the value ranges of the first identifier, the second identifier and the third identifier are mutually exclusive; and a transmitter which, in operation, transmits the generated transmission signal.

Abstract: An access point (AP) includes a receiver, which, in operation, receives a Joint Transmission (JT) Trigger frame from another AP that indicates MAC protocol data units (MPDUs) to be jointly transmitted to a communication apparatus; and a local memory that stores one or more MPDUs previously transmitted to the communication apparatus.

Abstract: An access point (AP) includes circuitry, which, in operation, generates a frame that includes joint transmission (JT) data and a JT identity that uniquely identifies the JT data. The access point further includes a transmitter, which, in operation, transmits the frame to one or more APs that jointly transmit the JT data to a communication apparatus.

Abstract: A base station is provided with: a control circuit that, on the basis of one of a communication parameter which is set in accordance with communication quality and a retransmission control operation, decides the other thereof; and a communication circuit that, on the basis of the communication parameter or retransmission control operation to be decided, communicates with a terminal.

Abstract: The present disclosure provides communication apparatus and communication method for PPDU format identification. The communication apparatus comprising circuitry which, in operation, generates a Physical Layer Protocol Data Unit (PPDU) that contains a first signal field, a second signal field and a third signal field, and wherein the second signal field is used to determine whether a physical layer (PHY) version of the generated PPDU is not older than a defined PHY version, and the third signal field is used to indicate the PHY version of the generated PPDU; and a transmitter which, in operation, transmits the generated PPDU.

Abstract: A transmission apparatus of the present disclosure comprises a signal generator which, in operation, generates a transmission signal that comprises a data field containing a WUR (Wake Up Radio) Mode Setup frame; wherein a field of a WUR Mode element included in the WUR Mode Setup frame contains the information on Group IDs (Identifiers) assigned by an AP (Access Point) to the station comprising the transmission apparatus; and a transmitter which, in operation, transmits the generated transmission signal.

Abstract: A transmission apparatus includes a transmitter and a receiver. The transmitter transmits a Trigger Frame for allocating resources for Uplink Multi User (UL MU) transmission, the Trigger Frame comprising a common information field that includes a type subfield indicating one of a plurality of trigger types, wherein the plurality of trigger types includes a first trigger type, a second trigger type and a third trigger type, the first trigger type indicating a basic trigger, the second trigger type indicating multi-user block ack request, and the third trigger type indicating a specific trigger used for soliciting a specific type of UL MU response frame from a plurality of terminal stations. The receiver, responsive to the type subfield indicating the third trigger type, receives the specific type of UL MU response frame from the plurality of terminal station.

Abstract: A transmission apparatus comprises circuitry that generates a physical protocol data unit (PPDU) that contains a legacy signal field and a first signal field wherein both of the legacy signal field and the first signal field comprise an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and the first signal field is derived from the legacy signal field, and a transmitter, which, in operation, transmits the PPDU. A format of the PPDU is indicated based on whether a part of bits of the first signal field is inverted or not. The format of the PPDU is a first format or a second format, and data subcarriers of the first signal field in the second format have inverted values of corresponding values in the legacy signal field, and pilots of the first signal field in the second format are not inverted and have same values of corresponding values in the legacy signal field.

Abstract: A downlink wireless transmission device comprising: a control circuit that generates common information that is common to a plurality of users and unique user information that is unique to each of the plurality of users and corresponds to information pertaining to retransmission control, said common and unique information including information pertaining to retransmission control for each of the plurality of users; and a transmission circuit that transmits control signals including the common information and the unique user information.

Abstract: According to an aspect of the present invention, a communication apparatus is provided. The communication apparatus may include: a Wake Up Receiver (WURx) which, in operation, receives Wake-Up Radio (WUR) Physical Layer Protocol Data Units (PPDU) from an Access Point (AP); determination circuitry which, in operation, determines an unexpected event related to the reception of the WUR PPDU; and a Primary Connectivity Radio (PCR) transmitter which, in operation, transmits to an access point (AP) information based on the determined unexpected event.

Abstract: A transmission method comprises: generating a transmission signal including OFDM symbols, wherein the last OFDM symbol of the OFDM symbols can be partitioned into four segments, and wherein the generating includes: computing an initial padding factor value associated with one of the four segments and computing an initial number of OFDM symbols; determining a user with a longest packet duration among plural users; determining a common padding factor value being the initial padding factor value and a common number of OFDM symbols being the initial number of OFDM symbols of the determined user with the longest packet duration; adding pre-FEC padding bits toward one of four possible boundaries of the last OFDM symbol, the one of four possible boundaries being represented by the determined common padding factor value; and adding post-FEC padding bits in remaining segment(s) of the last OFDM symbol; and transmitting the generated transmission signal.

Abstract: The present disclosure provides communication apparatus and communication method for user-specific persistent allocation. A communication apparatus comprises circuitry which, in operation, generates a transmission signal comprising a common field, a user specific field and a data field, the common field including RU information for each of one or more allocations in the data field and the user specific field including one or more user information, each indicating a user-specific allocation among the one or more allocations in the data field; and a transmitter, which, in operation, transmits the generated transmission signal; wherein the user specific field is free from at least one user information for a persistent allocation containing a recurring transmission among the one or more allocations.

Abstract: A transmission apparatus of the present disclosure comprises a packet generator which, in operation, generates a packet and a transmitter which, in operation, transmits the generated packet. The packet includes a legacy short training field, a legacy long training field, a legacy signal field (L-SIG), a repeated legacy signal field (RL-SIG), a first non-legacy signal field, a second non-legacy signal field, a non-legacy short training field, a non-legacy long training field and a data field, wherein the second non-legacy signal field is optionally present. The packet generator generates the packet by configuring the RL-SIG in different ways according to a presence or absence of the second non-legacy signal field in the packet.