ULTRA-LOW LATENCY PHY/MAC DESIGN FOR IEEE 802.11

    公开(公告)号:US20220173853A1

    公开(公告)日:2022-06-02

    申请号:US17561738

    申请日:2021-12-24

    Abstract: Provided herein is ultra-low latency (ULL) PHY/MAC design for IEEE 802.11. The disclosure provides an apparatus, comprising: interface circuitry; and processor circuitry coupled with the interface circuitry, wherein the processor circuitry is to: encode a ULL packet; and cause transmission of the ULL packet to an Access Point (AP) via the interface circuitry in an unlicensed spectrum, wherein a duration of the ULL packet is less than 20 microseconds. Other embodiments may also be disclosed and claimed.

    ENHANCED LOW COMPLEXITY LOW-DENSITY PARITY-CHECK ENCODING PROCESS FOR ULTRA HIGH RELIABILITY

    公开(公告)号:US20240113806A1

    公开(公告)日:2024-04-04

    申请号:US18522065

    申请日:2023-11-28

    CPC classification number: H04L1/0041 H04L1/0057 H04L1/0612 H04L27/2626

    Abstract: This disclosure describes systems, methods, and devices related to enhanced low-density parity-check (LDPC) coding. A device may generate a frame comprising a data field, wherein the data field comprises a number of information bits. The device may calculate a required initial number of orthogonal frequency-division multiplexing (OFDM) symbols based on the number of information bits. The device may calculate an initial number of segments in a last OFDM symbol of the number of OFDM symbols. The device may calculate a number of data bits that can be filled within an initial number of OFDM symbols. The device may determine an LDPC codeword length based on the calculated number of data bits that can be filled. The device may cause to send the frame to one or more devices based on the LDPC codeword length.

    MULTI-USER ENCODING FOR UNEQUAL MODULATION AND CODING SCHEME ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:US20230291501A1

    公开(公告)日:2023-09-14

    申请号:US18317859

    申请日:2023-05-15

    CPC classification number: H04L1/007 H04L1/0072 H04L1/0075

    Abstract: This disclosure describes systems, methods, and devices related to unequal modulation and coding scheme (unequal MCS). A device may decode user fields or first portions of unequal modulation and coding scheme (UEM) user fields from a first user specific field. The device may determine resource allocations, resource unit (RU) and multiple resource unit (MRU) allocations, based on the order of decoded user fields or the first portions of UEM user fields. The device may identify whether a user is a UEM user based on an indication in a first portion of a UEM user field or a new designed subfield, MCS type subfield, in a first user specific field. The device may decode a second user specific field to retrieve remaining portions of UEM user fields for UEM users to obtain the full set of MCSs.

    PROCESSES AND METHODS TO ENABLE DOWNLINK DATA TRANSMISSION OVER WIDE BANDWIDTH FOR THE CELL EDGE STATION

    公开(公告)号:US20200068613A1

    公开(公告)日:2020-02-27

    申请号:US16488022

    申请日:2017-03-28

    Abstract: Methods and systems herein provide better downlink (DL) data throughput for cell-edge stations (CE STAs). The systems enable protection from a third-party collision during a wideband DL data transmission to the cell edge STA, when the wideband control frame, such as clear-to-send (CTS) or acknowledge (ACK), transmission from a cell edge STA cannot reach the AP. This process can be achieved by designing a new wideband control frame comprising: a legacy preamble sent over the primary 20 MHz channel that can be decoded by the legacy STAs, a new preamble sent over the primary 20 MHz channel that can be used to identify the new wideband control frame (this new preamble has the total signal bandwidth information for the rest of the packet following the new preamble); and duplicate legacy control packets set over the total bandwidth indicated in the new preamble (the legacy control packets can be decoded by the legacy STAs).

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