公开(公告)号：US12114302B2

公开(公告)日：2024-10-08

申请号：US18208776

申请日：2023-06-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pengfei Xia ,  Oghenekome Oteri ,  Hanqing Lou ,  Nirav B Shah ,  Monisha Ghosh ,  Robert Olesen

IPC: H04W72/044 ,  A63F13/792 ,  G06N5/04 ,  G06N20/00 ,  G06Q30/0207 ,  G06Q30/0211 ,  H04B7/0417 ,  H04B7/0491 ,  H04B7/06 ,  H04L1/00 ,  H04W16/28

CPC classification number: H04W72/046 ,  A63F13/792 ,  G06N5/04 ,  G06N20/00 ,  G06Q30/0209 ,  G06Q30/0211 ,  H04B7/0417 ,  H04B7/0491 ,  H04B7/0617 ,  H04B7/063 ,  H04L1/00 ,  H04W16/28

Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.

公开(公告)号：US20240154767A9

公开(公告)日：2024-05-09

申请号：US17392933

申请日：2021-08-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Monisha Ghosh ,  Sudheer A. Grandhi

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L5/0055 ,  H04L1/1607 ,  H04L1/1671 ,  H04L1/1854 ,  H04L1/1864 ,  H04L2001/0093

Abstract: A method performed by a STA may comprise transmitting a first negotiation message to an AP and receiving a second negotiation message from the AP. The first negotiation message and the second negotiation message may negotiate a block acknowledgement agreement. The method may further comprise receiving a data unit, from the AP, the data unit having a duration field indicating a duration of a block-ACK frame. The duration of the block-ACK frame may be determined based on the negotiated block ACK agreement. A block-ACK frame may be transmitted within the duration indicated by the duration field.

公开(公告)号：US20230397186A1

公开(公告)日：2023-12-07

申请号：US18453813

申请日：2023-08-22

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Monisha Ghosh ,  Nirav B. Shah ,  Guodong Zhang ,  Ronald Murias

IPC: H04W72/121 ,  H04W72/04 ,  H04W74/00 ,  H04W74/06 ,  H04W72/0453 ,  H04W74/04 ,  H04L1/00 ,  H04L1/1607 ,  H04W72/20 ,  H04W72/21 ,  H04L1/1829 ,  H04W74/08

CPC classification number: H04W72/121 ,  H04W72/04 ,  H04W74/004 ,  H04W74/006 ,  H04W74/06 ,  H04W72/0453 ,  H04W74/04 ,  H04L1/0025 ,  H04L1/1664 ,  H04L1/1685 ,  H04W72/20 ,  H04W72/21 ,  H04L1/1861 ,  H04W74/0816 ,  H04B17/318

Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of the plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.

公开(公告)号：US11375448B2

公开(公告)日：2022-06-28

申请号：US16358269

申请日：2019-03-19

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sudheer A. Grandhi ,  Lei Wang ,  Guodong Zhang ,  Xiaofei Wang ,  Monisha Ghosh ,  Hanqing Lou

IPC: H04W48/20 ,  H04W48/16 ,  H04B7/0456 ,  H04B7/06 ,  H04W48/12

Abstract: A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS).

公开(公告)号：US20210409969A1

公开(公告)日：2021-12-30

申请号：US17473506

申请日：2021-09-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Pengfei Xia ,  Monisha Ghosh ,  Oghenekome Oteri ,  Robert L. Olesen

IPC: H04W16/28 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0413 ,  H04W72/04

Abstract: A method, apparatus, system, and computer readable medium may be used to perform beamforming. The method may include a first communication device sending a first plurality of beamforming training frames to a second communication device using a first beamforming weight vector; the first communication device receiving from the second communication device a second beamforming weight vector; and the first communication device sending a second plurality of beamforming training frames to the second communication device using the second beamforming weight vector. The apparatus, method, system, and computer readable media may use spatial diversity with beam switching, spatial diversity with a single beam, weighted multipath beamforming training, single user spatial multiplexing, and beamforming training for beam division multiple access (BDMA).

公开(公告)号：US11191104B2

公开(公告)日：2021-11-30

申请号：US16895775

申请日：2020-06-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Hanging Lou ,  Monisha Ghosh ,  Robert L. Olesen ,  Frank La Sita ,  Xiaofei Wang ,  Pengfei Xia ,  Nirav B. Shah

IPC: H04W74/08 ,  H04W4/08 ,  H04W24/02 ,  H04W64/00 ,  H04W84/12

Abstract: Systems, methods, and instrumentalities are described to implement an interference management method in WLAN. An access point (AP) or an inter-BSS coordinator (IBC) may identify a station (STA) associated with a first basic service set (BSS) as an edge STA or a non-edge STA. The AP or the IBC may group the edge STA into an edge group and a non-edge STA into a non-edge group. The AP or the IBC may receive information associated with a second BSS. The AP or the IBC may coordinate access of the edge group and/or the non-edge group. The access may be coordinated to minimize interference of the edge STA. The access may be based at least on the received information associated with the second BSS. The AP or the IBC may adjust transmit power of a plurality of STAs identified as edge group STAs and non-edge group STAs.

公开(公告)号：US11153908B2

公开(公告)日：2021-10-19

申请号：US16596365

申请日：2019-10-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Xiaofei Wang ,  Juan Fang ,  Oghenekome Oteri ,  Pengfei Xia ,  Monisha Ghosh ,  Robert L. Olesen

IPC: H04W4/00 ,  H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W84/12

Abstract: A STA may comprise a receiver configured to receive an MU RTS frame transmitted to a plurality of STAs. The MU RTS frame may indicate, in a duration field, a duration of one or more frames to follow. The STA may further comprise a transmitter configured to transmit a CTS frame in response to receiving the MU RTS frame. Another frame comprising UL transmission information may be received by the STA which includes MCS indicators and allocates frequency resources for the plurality of STAs. A data frame may be modulated in accordance with an MCS indicator of the MCS indicators, and may be transmitted on frequency resources of the frequency resources allocated for the plurality of STAs. An acknowledgement frame, which acknowledges receipt of the data frame, may be received.

公开(公告)号：US10932229B2

公开(公告)日：2021-02-23

申请号：US13826402

申请日：2013-03-14

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Ronald G. Murias ,  Xiaofei Wang ,  Nirav B. Shah ,  Monisha Ghosh ,  Guodong Zhang ,  Frank La Sita ,  Robert L. Olesen

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/00 ,  H04L27/26

Abstract: A method and apparatus may be configured to support coordinated orthogonal block-based resource allocation (COBRA) operations. An access point (AP) may be configured to indicate to a plurality of stations (STA)s that it may support COBRA. Each WTRU may be configured to indicate to the AP that it can support COBRA as well. The AP may be configured to transmit a COBRA controller information element (IE) comprising a plurality of fields to each of the WTRUs. Each WTRU may be configured to transmit a COBRA controllee IE comprising a plurality of fields. STA grouping management, group maintenance, channel access, beamforming, sounding and frequency and synchronization procedures are also described.

公开(公告)号：US20200053783A1

公开(公告)日：2020-02-13

申请号：US16596365

申请日：2019-10-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Xiaofei Wang ,  Juan Fang ,  Oghenekome Oteri ,  Pengfei Xia ,  Monisha Ghosh ,  Robert L. Olesen

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: A STA may comprise a receiver configured to receive an MU RTS frame transmitted to a plurality of STAs. The MU RTS frame may indicate, in a duration field, a duration of one or more frames to follow. The STA may further comprise a transmitter configured to transmit a CTS frame in response to receiving the MU RTS frame. Another frame comprising UL transmission information may be received by the STA which includes MCS indicators and allocates frequency resources for the plurality of STAs. A data frame may be modulated in accordance with an MCS indicator of the MCS indicators, and may be transmitted on frequency resources of the frequency resources allocated for the plurality of STAs. An acknowledgement frame, which acknowledges receipt of the data frame, may be received.

公开(公告)号：US10231251B2

公开(公告)日：2019-03-12

申请号：US15826818

申请日：2017-11-30

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Monisha Ghosh ,  Nirav B Shah ,  Guodong Zhang ,  Ronald Murias

IPC: H04W72/12 ,  H04W74/06 ,  H04W72/04 ,  H04W74/00 ,  H04W74/04 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W74/08 ,  H04W84/12 ,  H04B17/318

Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of a plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.