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    METHODS AND SYSTEM FOR MIMO TRANSMISSIONS IN MILLIMETER WAVE WLANS
    92.
    发明申请
    METHODS AND SYSTEM FOR MIMO TRANSMISSIONS IN MILLIMETER WAVE WLANS 有权

    公开(公告)号：US20210143887A1

    公开(公告)日：2021-05-13

    申请号：US16621133

    申请日：2018-06-14

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Oghenekome Oteri ,  Alphan Sahin ,  Hanqing Lou ,  Li Hsiang Sun ,  Rui Yang

    IPC: H04B7/06 ,  H04B7/0452 ,  H04W74/08

    Abstract: Methods and an apparatus are disclosed for orthogonal frequency division multiplexing (OFDM) and/or single carrier (SC) based multiple input multiple output (MIMO) hybrid beamforming (HBF) including determining the capabilities of a station (STA) such as the capability for hybrid beamforming, single user MIMO (SU-MIMO), and multi user MIMO (MU-MIMO). An announcement frame with a control trailer may be transmitted to signal a transmission configuration. The announcement frame may be a grant frame or a request to send (RTS) frame if the STA is SU-MIMO capable or a RTS frame or a DMG clear to send (CTS)-self frame if the STA is MU-MIMO capable. One or more directional multi-gigabit (DMG) antennas may be configured based on the announcement frame. One or more sounding symbols may be transmitted and feedback may be provided based on the sounding symbols. An HBF signal may be transmitted based on the sounding symbol(s) and/or feedback.

    Multi-channel setup mechanisms and waveform designs for millimeter wave (mmW) systems
    94.
    发明授权
    Multi-channel setup mechanisms and waveform designs for millimeter wave (mmW) systems 有权

    公开(公告)号：US10932184B2

    公开(公告)日：2021-02-23

    申请号：US16330227

    申请日：2017-09-08

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Hanqing Lou ,  Alphan Sahin ,  Oghenekome Oteri ,  Rui Yang

    IPC: H04W48/12 ,  H04W72/04 ,  H04B7/0413 ,  H04L5/00 ,  H04W48/16

    Abstract: Mechanisms may be used for multi-channel (MC) setup and access and waveform designs for millimeter wave (mmW) systems. An access point (AP) that is part of a basic service set (BSS) may provide multi-channel (MC) access to one or more stations (STAs) in the BSS. The AP may monitor for beacon frames transmitted by other access point/personal basic service set (PBSS) control point (AP/PCP) associated with overlapping basic service sets (OBSSs). The monitored beacon frames may include service period (SP) scheduling information for the OBSS. The AP may generate an allocations at least one SPs and/or contention based access periods (CBAPs) channels to be used in a beacon interval in consideration of the SP scheduling information for the OBSS. The AP may transmit a beacon frame STA(s) indicating the SP/CBAP allocations. Other mechanisms may include simultaneous transmission of multiple single carrier (SC) waveforms with non-overlapping waveforms to multiple STAs.

    MULTIPLE RESOURCE UNIT ALLOCATION FOR OFDMA WLAN
    97.
    发明申请
    MULTIPLE RESOURCE UNIT ALLOCATION FOR OFDMA WLAN 审中-公开

    公开(公告)号：US20180248591A1

    公开(公告)日：2018-08-30

    申请号：US15758202

    申请日：2016-09-08

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Chunhua Geng ,  Fengjun Xi ,  Alphan Sahin ,  Rui Yang ,  Oghenekome Oteri ,  Nirav B. Shah ,  Robert L. Olesen ,  Robert La Sita

    IPC: H04B7/0413 ,  H04L1/00 ,  H04L5/00

    Abstract: Systems, methods, and instrumentalities are disclosed for multiple resource unit (RU) allocation for OFDMA WLAN. A transmitter may parse an encoded bit stream into a plurality of spatial streams. The transmitter may determine an allocation of encoded bits of the plurality of spatial streams to a plurality of interleavers. The transmitter may allocate the encoded bits to the plurality of interleavers based on the determined allocation. The allocation of the encoded bits may be determined based on one or more of channel related feedback, an RU configuration associated with the transmission, a quality of service (QoS), and/or traffic priorities. The transmitter may interleave the encoded bits using the plurality of interleavers. The transmitter may combine the interleaved encoded bits from the plurality of interleavers into a sequenced bit stream.

    Methods and apparatus for HARQ in wireless networks
    98.
    发明授权
    Methods and apparatus for HARQ in wireless networks 有权

    公开(公告)号：US12218763B2

    公开(公告)日：2025-02-04

    申请号：US17292268

    申请日：2019-11-01

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Xiaofei Wang ,  Oghenekome Oteri ,  Hanqing Lou ,  Li Hsiang Sun ,  Joseph Levy ,  Alphan Sahin ,  Frank LaSita

    IPC: H04L1/1607 ,  H04L1/1812 ,  H04L1/1867

    Abstract: Methods and apparatuses are described herein for HARQ signaling and communications in wireless networks. For example, a method implemented in a STA comprises receiving a first MU transmission including a first set of HARQ bits, a first set of user data for STAs including the STA, a preamble including information indicating that the MU transmission includes the first set of HARQ bits, and a first set of HARQ Process IDs associated with the first set of HARQ bits; determining a subset of HARQ bits of the first set of HARQ bits; transmitting a response message indicating a reception status of the subset of HARQ bits; and receiving a second MU transmission including a second set of HARQ bits, a second set of user data for the plurality of STAs, and a second set of HARQ Process IDs associated with the second set of HARQ bits.

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