Abstract: Aspects of the disclosure provide for methods and systems for Sub-codebook based Trellis Coded Quantization for CSI Feedback. An aspect of the disclosure provides method executed by a receiver. The method includes receiving a signal from a transmitter, via a communication channel between the receiver and the transmitter. The method further includes estimating parameters associated with the channel based on the received signal. The method further includes obtaining phase information from the estimated parameters. The method further includes applying a trellis coded quantization (TCQ) scheme to the obtained phase information by mapping each sub-codebook index of a set of sub-codebook indices to output bits of each trellis branch making the distance between sub-codebooks maximally equal.

Abstract: A format for a Null Data Packet Announcement (NDPA) frame for Wi-Fi sensing is provided. The frame format is based on the ranging NDPA frame format. The sensing frame can indicate channel state information measurement parameters, for a preamble punctured EHT NDP PPDU, in the Common Info field of the frame. When there is insufficient space in the Common Info field, the puncturing patterns can be indicated in each station (STA) field of the frame. Alternatively, the sensing frame can include an additional Common Info field that includes the information defining the puncturing patterns. Also provided is a method that indicates partial bandwidth (BW) feedback when the BW of each STA is smaller than the BW of the EHT NDP PPDU. A method that indicates the BW of the sensing NDPA frame is also provided, as is a method for setting the signal field in the EHT NDP PPDU for a number of long training field repetition.

Abstract: A procedure and frame structure for Wi-Fi sensing is described. An aspect of the disclosure provides a method of sensing. Such the method includes sending, by an initiating station (STA) to a plurality of responder STAs, a sensing request comprising a sensing announcement frame indicating identifiers (ID) of the plurality of responder STAs. Such a method further includes receiving, by the initiating STA from the plurality of responder STAs, one or more responses based on the sensing request. In some embodiments, the announcement frame further indicates resource unit assignments for receiving acknowledgements from the plurality of responder STAs. In some embodiments, the method further includes receiving, by the initiating STA from the plurality of responder STAs, the acknowledgements indicating a willingness to participate in the sensing procedure.

Abstract: A method, apparatus and system for transmitting control information in a header of a physical protocol data unit (PPDU), such as an IEEE 802.11 compliant PPDU. Embodiments include indicating control features in an EDMG PPDU for Wireless LAN communications. The method and system may include overloading at least one bit of a Scrambler Initialization Field in the PPDU header (e.g. the PHY header) to convey control information, as well as to be used to initialize the scrambler shift register. The same header bits are thus used for both purposes. Examples of control information include a primary channel, channel width or MIMO configuration to be used in further communication.

Abstract: A computerized method performed by a first apparatus. The method has the steps of: normalizing real and imaginary parts of parameters of a channel between the first apparatus and a second apparatus to a first bit-size, and quantizing the normalized real and imaginary parts of the parameters to obtain channel state information (CSI) coefficients of a second bit-size for feeding back to the second apparatus.

Abstract: According to a first aspect of the disclosure, methods are discussed in which a station (STA) sends a message to an access point, for example an associated access point, about a change in multi-AP coordination parameters. A STA, which may be a mobile STA, can be in a better position than the APs themselves, for detecting changes in conditions which can affect the effectiveness, or even the desirability of the multi-AP coordination. Accordingly the STA can send a message reporting detected conditions related to multi-AP coordination. In some embodiments, such a message can request for initializing multi-AP coordination, such a message can be in response to a triggering event detected by the STA. In response to such a triggering event, the STA can analyze the STA's service needs, and send the message about a change in multi-AP coordination parameters. A second aspect of the disclosure provides an AP-to-AP negotiation process for multi-AP coordination.

Abstract: Systems and methods for generating a control signal for automatic wireless network version detection of a transmission. The control signal enables a receiver to detect the wireless network version detection of the transmission, so that the proper wireless network version is used for interpreting signaling information and decoding of the payload of the transmission. In some examples, the control signal is within a preamble of the transmission. The wireless network version can be an IEEE 802.11 version, such as proposed IEEE 802.11be. The control signal is compatible with legacy systems and can indicate the legacy signaling information by way of a Legacy Signal (SIG) (L-SIG) symbol. In some examples, the control signal can indicate the wireless network version by using an identifier symbol which is generated from at least part of, but is not identical to, the L-SIG symbol.

Abstract: A first wireless device communicates using a frequency bandwidth with multiple wireless devices, and is configured to concurrently transmit trigger frame messages for each of the multiple wireless devices within respective trigger frame frequency bands of the frequency bandwidth to trigger the multiple wireless devices to concurrently transmit respective data units to the first wireless devices within respective frequency segments of the frequency bandwidth.

Abstract: Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating Aps.

Abstract: The application relates to link adaptation for extremely high throughput (EHT) systems. Various approaches are provided to enable transmission of link adaptation parameters for single-user multiple input multiple output (SU-MIMO), and multi-user multiple input multiple output MU-MIMO. In some embodiments, two control IDs in the A-control subfield are used, one for SU-MIMO and one for MU-MIMO. These can both be reserved control IDs, or a combination of a reserved control ID and control ID 2 normally used for HE link adaptation. In some embodiments, a single control ID in the A-control subfield is used. This can be a reserved control ID or control ID 2 normally used for HE link adaptation.

Abstract: Methods and systems for outputting data for transmission in a wireless local area network (WLAN) are disclosed. The method comprises generating a trigger frame for a first wireless communication device, the trigger frame comprising one or more subfields of bits at predefined bit locations within the trigger frame that are populated with values for a second wireless communication device to copy into a trigger based frame for transmission to the first wireless communication device.

Abstract: Method and system method comprising encoding a source word to be transmitted in a data unit from a source station in a wireless network, generating a first OFDM symbol that carries a data segment corresponding to encoded bits of the source word, duplicating the first OFDM symbol to generate a second OFDM symbol that is a linear phase-rotated copy of the first OFDM symbol; and transmitting the data unit including the first OFDM symbol and the second OFDM symbol.

Abstract: Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating Aps.

Abstract: There are provided methods and apparatus related to setting up sensing measurement instances and to allocating resource units (RUs) between sensing responders in a sensing measurement instance. There is provided a channel state information (CSI) feedback (FB) support subfield can be provided in a sensing measurement parameters field, which may be used to allow a device to indicate whether it can compute CSI FB information and feedback. There is further provided, RU allocation re-use across multiple phases of a sensing phase which may enable later trigger frames to omit RU allocation information. There are further provided responder-to-initiator (R2I) null data packets (NDPs) which include information indicative of the device transmitting the packet in a signal (SIG) field of the NDP.

Abstract: The present disclosure provides for methods and systems for improved channel information gathering mechanism. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel information. The channel information being related to one or more channels between an access point (AP) and the one or more STAs. The method further includes receiving, from the one or more (STA), one or more physical layer (PHY) protocol data units (PPDUs). The PPDUs includes channel feature information (CFI) associated with the one or more channels. In some embodiments, the request includes a beamforming report poll (BFRP) trigger frame having a user information field. The user information subfield indicating one or more thresholds associated with one or more parameters of the channel feature information.

Abstract: There is provided a method and apparatus associated with a sensing measurement report frame format. A method includes receiving, by an access point (AP) or a station (STA), a request for at least one sensing measurement report. The method also includes transmitting, by the AP or the STA, a sensing measurement report frame that includes a category field, a public action field, and at least one measurement set-up identifier field and at least one sensing measurement report element. The sensing management report frame can include a category field, a public action field, a dialog token field, a measurement set-up identifier field, and a sensing measurement report element.

Abstract: The application relates to link adaptation for extremely high throughput (EHT) systems. Various approaches are provided to enable transmission of link adaptation parameters for single-user multiple input multiple output (SU-MIMO), and multi-user multiple input multiple output MU-MIMO. In some embodiments, two control IDs in the A-control subfield are used, one for SU-MIMO and one for MU-MIMO. These can both be reserved control IDs, or a combination of a reserved control ID and control ID 2 normally used for HE link adaptation. In some embodiments, a single control ID in the A-control subfield is used. This can be a reserved control ID or control ID 2 normally used for HE link adaptation.

Abstract: A procedure and frame structure for Wi-Fi sensing is described. An aspect of the disclosure provides a method of sensing. Such the method includes sending, by an initiating station (STA) to a plurality of responder STAs, a sensing request comprising a sensing announcement frame indicating identifiers (ID) of the plurality of responder STAs. Such a method further includes receiving, by the initiating STA from the plurality of responder STAs, one or more responses based on the sensing request. In some embodiments, the announcement frame further indicates resource unit assignments for receiving acknowledgements from the plurality of responder STAs. In some embodiments, the method further includes receiving, by the initiating STA from the plurality of responder STAs, the acknowledgements indicating a willingness to participate in the sensing procedure.

Abstract: A method, apparatus and system for transmitting control information in a header of a physical protocol data unit (PPDU), such as an IEEE 802.11 compliant PPDU. Embodiments include indicating control features in an EDMG PPDU for Wireless LAN communications. The method and system may include overloading at least one bit of a Scrambler Initialization Field in the PPDU header (e.g. the PHY header) to convey control information, as well as to be used to initialize the scrambler shift register. The same header bits are thus used for both purposes. Examples of control information include a primary channel, channel width or MIMO configuration to be used in further communication.

Abstract: There is provided a method for providing a sensing initiator station with measurement feedback. The method includes broadcasting, by the sensing initiator station, a sensing announcement frame and broadcasting, by the sensing initiator station, a sensing sequence frame, the sensing sequence frame containing a reference sequence. The method further includes transmitting, by the sensing initiator station, a feedback request frame, the feedback request frame including station information indicating resources allocated for each participating station. The method further includes sending, by a responder station, a feedback frame to the sensing initiator, the feedback frame including an indicator corresponding to data contained in the feedback frame. There is also provided a device which includes a processor, and non-transitory computer readable memory having stored thereon machine readable instructions. The instructions, when executed by the processor configure the device to execute a method disclosed herein.