Abstract: A first communication device comprises circuitry configured to exchange control information with one or more second communication devices on a primary communication channel, exchange data with one or more second communication devices on one or more secondary communication channels and/or the primary communication channel, receive an access request to access the primary communication channel and/or one or more secondary communication channels by a second communication device on an access channel that is a different channel than the primary communication channel, the access request indicating one or more parameters of the desired communication, and transmit an access response on the access channel, the access response including time information indicating information regarding the time of desired communication and channel information indicating parameters of the communication channels of the desired communication.

Abstract: A first communication device that is configured to communicate with a second communication device comprises circuitry configured to receive a low latency, LL, indication from the second and/or third communication device, which indicates to the first communication device that transmission of a second LL information by the first communication device is allowed; and transmit second LL information to the second communication device during and within the bandwidth of an ongoing transmission of a data unit from the third communication device to the second communication device, wherein the second LL information indicates to the second communication device that the first communication device has LL data to transmit to the second communication device.

Abstract: A first communication device that is configured to bidirectionally exchange data with a second communication device comprises circuitry that is configured to initiate a bidirectional transmit opportunity (TXOP) by transmitting, to the second communication device, a TXOP indicator indicating that a wideband TXOP is split into two channels and indicating that a first channel is primarily to be used for transmission of data from the first communication device to the second communication device and a second channel is primarily to be used for transmission of data from the second communication device to the first communication device. Further, the first communication device transmits data to the second communication device on the first channel and listen for the reception of data from the second communication device on the second channel.

Abstract: A first communication device that is configured to communicate with one or more third communication devices and that comprises circuitry configured to contend for channel access, within an interval before the start or at the start of a scheduling interval during which communication of the first communication device with the one or more third communication devices is planned over said channel; and transmit, after successful contention, a control frame initiating a constrained contention interval and including constrained contention information, the constrained contention interval representing a time period before and/or during the scheduling interval, during which second and/or third communication devices shall either consider the channel as busy or may contend and access said channel according to constrained contention information.

Abstract: A first communication device comprises circuitry configured to exchange control information with one or more second communication devices on a primary communication channel, exchange data with one or more second communication devices on one or more secondary communication channels and/or the primary communication channel, receive an access request to access the primary communication channel and/or one or more secondary communication channels by a second communication device on an access channel that is a different channel than the primary communication channel, the access request indicating one or more parameters of the desired communication, and transmit an access response on the access channel, the access response including time information indicating information regarding the time of desired communication and channel information indicating parameters of the communication channels of the desired communication.

Abstract: A first communication device, e.g. an AP (10), that is configured to communicate with one or more second communication devices, e.g. STAs (20, 30), comprising circuitry configured to transmit channel access information (101) indicating to one or more of the second communication devices (20) if and which of one or more channel access parameters are individually set (102) for said one or more second communication devices and shall be used by said one or more second communication devices instead of corresponding common channel access parameters, and transmit one or more individually set channel access parameters indicated by said channel access information as individually set to said one or more second communication devices (20).

Abstract: A first communication device is configured to communicate with a third communication device, the first communication device comprising circuitry configured to perform data exchange with the third communication device during a first portion of a scheduling interval, wherein data exchange between the first and the third communication device is planned during the scheduling interval, the first communication device being a primary user of the scheduling interval: and transmit a release indication indicating that the remaining portion of the scheduling interval is released for use by a second communication device, the second communication device being a secondary user of the scheduling interval.

Abstract: A first communication device configured to communicate with one or more second and third communication devices, the first communication device comprising circuitry configured to receive a request for a transmission opportunity (TXOP) from a second communication device, the requested transmission opportunity overlapping with a scheduling interval during which communication of the first communication device with one or more third communication devices is planned, set access information, including one or more channel access (CA) parameters and/or one or more TXOP parameters, for the second communication device that indicates to the second communication device if and how it may communicate with the first communication device before and/or during the scheduling interval, and transmit the access information to at least the second communication device.

Abstract: A first communication device, e.g. an AP (10), that is configured to communicate with one or more second communication devices, e.g. STAs (20, 30), comprising circuitry configured to transmit channel access information (101) indicating to one or more of the second communication devices (20) if and which of one or more channel access parameters are individually set (102) for said one or more second communication devices and shall be used by said one or more second communication devices instead of corresponding common channel access parameters, and transmit one or more individually set channel access parameters indicated by said channel access information as individually set to said one or more second communication devices (20).

Abstract: A first communication device that is configured to transmit data to a second communication device comprises circuitry configured to generate a second number of mutually orthogonal sequences; generate a third number of one or more spatial streams, each spatial stream carrying payload data; split each of a first number of training symbols into a fourth number of tone sets, each training symbol spanning a plurality of tones; split each orthogonal sequence elements of the corresponding portion of the orthogonal sequences onto the tone sets of the training symbols; and arrange the training field before and/or between the payload data of the spatial streams to enable channel estimation by the second communication device.

Abstract: A first communication device that is configured to transmit data to a second communication device comprises circuitry configured to generate a second number of mutually orthogonal sequences; generate a third number of one or more spatial streams, each spatial stream carrying pay load data; generate a fourth number of transmission training sequences, each comprising, in addition to a distinct orthogonal sequence of said mutually orthogonal sequences, one or more zeros and/or a subset of said distinct orthogonal sequence; generate a training field by mapping the transmission training sequences into a first number of training symbols, each training symbol spanning a plurality of tones; and arrange the training field before and/or between the payload of the spatial streams to enable channel estimation by the second communication device.

Abstract: A communication device for RF based communication with another communication device, said communication device comprising circuitry configured to apply a fine timing measurement, FTM, procedure. The circuitry is configured to determine an FTM mode out of at least two different FTM modes, and to perform an FTM procedure to determine the round trip time, RTT, between the communication device and the other communication device, wherein the RTT is determined by evaluating a time information of a tap of the channel impulse response, wherein the tap used for the evaluation depends on the determined FTM mode.

Abstract: The present disclosure relates to the concept of preempting PPDUs, i.e., truncating a PPDU carrying non-latency sensitive traffic to serve STAs with latency constraints. A first communication device comprises circuitry configured to listen to an ongoing data exchange between a second communication device and a third communication device on a wireless channel, to estimate a reception duration of a data unit, to determine if the transmission of the data unit is truncated and/or if a truncation condition is met, the reception duration indicating the time of reception of the data unit by the third communication device if the data unit were not truncated, and, if the transmission of the data unit is truncated and/or if a truncation condition is met, receive a preemptive data unit from the second communication device or transmit a preemptive data unit to the second communication device.

Abstract: A first communication device that simultaneously transmits to a group of two or more second communication devices using multi-user multiple input multiple output (MU-MIMO) communication performs beamforming training with a selected second communication device of said group of second communication devices by transmitting one or more training units, wherein an analog beamforming training matrix and/or a digital beamforming training matrix adapted for beamforming training with the selected second communication device are applied on the one or more training units, receiving from the selected second communication device feedback in response to the transmitted transmit packets, and determining, for use in the simultaneous transmission of data to a group of two or more second communication devices including the selected second communication device, an updated analog beamforming matrix and/or an updated digital beamforming matrix based at least on the received feedback.

Abstract: A communication device for RF-based communication with another communication device comprises digital beamforming circuitry configured to perform digital beamforming based on digital beamforming information to obtain RF data streams, and analog beamforming circuitry configured to perform analog beamforming for the obtained RF data streams. The analog beamforming circuitry is configured to perform analog beamforming training with the other communication device enabling the other communication device to compute the digital beamforming information corresponding to one or more combinations of analog beams used in said analog beamforming training. The digital beamforming circuitry is configured to receive the computed digital beamforming information and to use it for performing the digital beamforming.

Abstract: The present disclosure relates to the concept of preempting PPDUs, i.e., truncating a PPDU carrying non-latency sensitive traffic to serve STAs with latency constraints. A first communication device comprises circuitry configured to receive a truncation notification during an ongoing exchange of data units with a second communication device, the truncation notification indicating that the ongoing transmission of a data unit shall be truncated and a preemptive data unit shall be received from and/or transmitted to the third communication device, terminate the ongoing transmission of the data unit before the estimated transmission time of the data unit, and receive from and/or transmit to the third communication device the preemptive data unit within the remaining duration of the truncated data unit or within the remaining duration of the transmit opportunity, established between the first and the second communication devices for the ongoing data unit exchange.

Abstract: A first communication device configured to communicate with a second communication device via two links comprises circuitry configured to switch between a full operation mode and a partial operation mode and control the moment of switching between the full operation mode and the partial operation mode and/or the moment of accessing the second link in the full operation mode under consideration of a switching delay indicating a delay between the initiation of switching between the full operation mode and the partial operation mode and the completion of the switching. In the full operation mode a first link of the two links is disabled and a second link of the two links commonly uses RF chains of both links for the communication with the second communication device and in the partial operation mode each link uses its RF chain for the communication with the second communication device.

Abstract: A communication device is configured to communicate with a second communication device, the communication device comprising circuitry configured to transmit one or more data frames to the second communication device that require a response by he second communication device, listen to a first response acknowledging receipt of at least one of the one or more data frames from he second communication device, and, if a first response is not received, change transmit opportunity configuration and/or channel access for non-data frames and/or data frames.

Abstract: A first access point comprises circuitry configured to generate AP schedule information that schedules, for subsequent data communication phases, the assignment of resources to one or more second access points to indicate which resources are assigned to a second access point for data communication in a subsequent data communication phase with its respective associated second stations, wherein the AP schedule information includes one or more AP schedules each comprising an assignment of resources to the one or more second access points, transmit the AP schedule information to the one or more second access points, and transmit, before and/or at the start of a data communication phase, AP trigger information to the one or more second access points to indicate which AP schedule to apply for the subsequent data communication phase.

Abstract: The improved beamforming devices for communication systems operating in the mm-wave spectrum are particularly designed for antenna architectures consisting of antenna arrays, comprising multiple antenna array elements. The disclosed approaches comprise intelligent two stage searches, wherein information from the first stage is used in the second stage. This significantly reduces the computational complexity compared to the known approaches, with minimal loss in performance.