Channel width, spatial streams, and short packet signaling

    公开(公告)号:US11569953B2

    公开(公告)日:2023-01-31

    申请号:US17313546

    申请日:2021-05-06

    Abstract: Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.

    Virtual carrier sensing with two network allocation vectors

    公开(公告)号:US11234269B2

    公开(公告)日:2022-01-25

    申请号:US16797496

    申请日:2020-02-21

    Abstract: Methods, computer readable media, and wireless apparatuses are disclosed for virtual carrier sensing with two network allocation vectors (NAV). An apparatus of a wireless device is disclosed. The apparatus comprising processing circuitry configured to: determine a duration of a frame, determine whether the frame is an intra basic service set (Intra-BSS) frame, an inter-BSS frame, or an unclassified frame. The processing circuitry may be further configured to set an intra-BSS network allocation vector (NAV) to the duration of the frame, if the frame is determined to be the intra-BSS frame, and if a receiver address is decoded from the frame and the receiver address is not an address of the wireless device. The processing circuitry may be further configured to set a regular NAV to the duration of the frame, if the frame is determined to be the inter BSS frame or the unclassified frame.

    Extreme high throughput future proof preamble design

    公开(公告)号:US11128515B2

    公开(公告)日:2021-09-21

    申请号:US16728282

    申请日:2019-12-27

    Abstract: Methods, apparatuses, and computer readable media for a common preamble for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a portion of a physical layer (PHY) protocol data unit (PPDU), the first portion of the PPDU including a physical universal signal field (U-SIG), the U-SIG comprising a version independent portion and a version dependent portion, the version independent portion including a version identifier field, the version identifier field indicating a standard version of the PPDU. The processing circuitry is further configured to refrain from decoding the version dependent portion when the standard version indicates a standard version of a later generation than a standard version of the AP or STA, and otherwise decode the version dependent portion in accordance with the standard version.

    Channel width, spatial streams, and short packet signaling

    公开(公告)号:US11128505B2

    公开(公告)日:2021-09-21

    申请号:US16783666

    申请日:2020-02-06

    Abstract: Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.

    Protection from counterfeit ranging

    公开(公告)号:US11102653B2

    公开(公告)日:2021-08-24

    申请号:US16215182

    申请日:2018-12-10

    Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of a responder station (RSTA) is disclosed, the apparatus including processing circuitry configured to decode a null data packet (NDP) announce (NDPA) frame from an initiator station (ISTA), the NDPA frame including an indication of a temporary key and an identification of the RSTA. The processing circuitry further configured to decode a NDP from the ISTA, the NDP including long training fields (LTFs), the NDP received on a channel. The processing circuitry further configured to determine whether the NDP from the ISTA is consistent with the NDP being generated using a temporary key shared between the ISTA and RSTA based on a comparison of the channel estimates. The processing circuitry may be further configured to determine for authentication whether the indication of the temporary key was generated based on the temporary key.

    Transmission rules within a TXOP for wider bandwidth operation

    公开(公告)号:US10257861B2

    公开(公告)日:2019-04-09

    申请号:US15809709

    申请日:2017-11-10

    Abstract: A method of communicating in a wireless network comprises controlling a bandwidth or a transmission mask of a PPDU transmitted by a transmitting STA to a receiving STA within a TXOP based on bandwidth information in at least one preceding frame within the TXOP. The method and associated devices allow a control of TXOP bandwidth or transmission mask where devices capable of both dynamic and static bandwidth operation may be present within the network. The preceding frame may include a non-HT frame of a non-HT duplicate frame exchange, such as a non-HT duplicate RTS/CTS exchange or a BAR/BA exchange, where the bandwidth or the transmission mask would be controlled by being limited to be less than or equal to a bandwidth of the non-HT frame. The preceding frame may include a preceding PPDU, where the bandwidth or the transmission mask would be limited to be less than or equal to a bandwidth of the preceding PPDU.

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