公开(公告)号：US20160044711A1

公开(公告)日：2016-02-11

申请号：US14777151

申请日：2014-03-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Monisha Ghosh ,  Xiaofei Wang ,  Robert L. Olesen

IPC: H04W74/08 ,  H04W72/12 ,  H04B7/06

CPC classification number: H04W74/0816 ,  H04B7/0617 ,  H04W72/1284 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08

Abstract: Systems, methods, and instrumentalities are provided to implement transmission scheduling. A multiband device may send a request via a first frequency band. The request may include a multiband Request to Send (MRTS) transmission. The request may be associated with a second frequency band and/or a beamforming training schedule. The first frequency band may be associated with a quasi-omni transmission and the second frequency band may be associated with a directional transmission. The first frequency band may be a 5 GHz band and the second frequency band may be a 60 GHz band. The multiband device may receive a multiband Clear to Send (MCTS) transmission via the first frequency band confirming the request. The multiband device may be configured to send a beamforming signal in accordance with the request, for example, via the second frequency band. The beamforming signal may be sent in accordance with a beamforming training schedule.

Abstract translation: 提供系统，方法和手段来实现传输调度。 多频带设备可以经由第一频带发送请求。 该请求可以包括多频带请求发送（MRTS）传输。 该请求可以与第二频带和/或波束成形训练计划相关联。 第一频带可以与准全向传输相关联，并且第二频带可以与定向传输相关联。 第一频带可以是5GHz频带，第二频带可以是60GHz频带。 多频带设备可经由确认该请求的第一频带接收多频段清除发送（MCTS）传输。 多频带设备可以被配置为例如经由第二频带根据请求发送波束成形信号。 波束成形信号可以根据波束成形训练计划发送。

公开(公告)号：US20130286959A1

公开(公告)日：2013-10-31

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

CPC classification number: H04W72/04 ,  H04L5/0023 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/0055 ,  H04L27/2602 ,  H04W74/006

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.

Abstract translation: 方法和装置可以被配置为支持协调的基于正交块的资源分配（COBRA）操作。 接入点（AP）可以被配置为向多个站（STA）指示其可以支持COBRA。 每个WTRU可以被配置为向AP指示它也可以支持COBRA。 AP可以被配置为向每个WTRU发送包括多个字段的COBRA控制器信息元素（IE）。 每个WTRU可以被配置为发送包括多个场的COBRA控制IE。 还描述了STA分组管理，组维护，信道接入，波束成形，声音和频率和同步过程。

公开(公告)号：US20250015959A1

公开(公告)日：2025-01-09

申请号：US18888944

申请日：2024-09-18

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1829

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 between the STA and the AP. 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：US20240089866A1

公开(公告)日：2024-03-14

申请号：US18307965

申请日：2023-04-27

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W52/24 ,  H04W52/12 ,  H04W74/08

CPC classification number: H04W52/243 ,  H04W52/12 ,  H04W74/0808 ,  H04W84/12

Abstract: Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.

公开(公告)号：US20230422303A1

公开(公告)日：2023-12-28

申请号：US18462580

申请日：2023-09-07

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 ,  H04L1/1607 ,  H04L1/1867 ,  H04L5/00 ,  H04L1/16 ,  H04W72/0453

CPC classification number: H04W74/0816 ,  H04L1/0026 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1887 ,  H04L5/0055 ,  H04L1/0003 ,  H04L1/16 ,  H04W72/0453 ,  H04L1/1671 ,  H04W84/12

Abstract: A station may receive a frame transmitted to a plurality of STAs. The frame may indicate a first frequency resource allocated for the STA and a second frequency resource allocated for another STA of the plurality of STAs. The STA may transmit a data frame using the first frequency resource and receive an acknowledgement frame that acknowledges receipt of the data frame. The STA may receive a MU RTS frame transmitted to the plurality of STAs and may subsequently transmit a CTS frame in response to receipt of the MU RTS frame. The RTS/CTS transmissions may occur prior to transmission of the data frame.

公开(公告)号：US11678318B2

公开(公告)日：2023-06-13

申请号：US17719023

申请日：2022-04-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04B7/0417 ,  H04B7/0491 ,  H04B7/06 ,  H04L1/00 ,  H04W16/28 ,  H04W84/12 ,  H04W72/044

CPC classification number: H04W72/046 ,  H04B7/0417 ,  H04B7/0491 ,  H04B7/063 ,  H04B7/0617 ,  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：US11611414B2

公开(公告)日：2023-03-21

申请号：US16213633

申请日：2018-12-07

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Monisha Ghosh ,  Nirav B. Shah ,  Sudheer A. Grandhi ,  Ronald G. Murias ,  Guodong Zhang ,  Xiaofei Wang ,  Hanqing Lou ,  Robert L. Olesen

IPC: H04L5/00 ,  H04L1/00 ,  H04L25/02

Abstract: Method and apparatus for transmission and reception of a Greenfield preamble are provided. In the method and apparatus, the Greenfield preamble may be a single user (SU) preamble or a multi user (MU) preamble. As an MU preamble, the Greenfield preamble includes a short training field (STF), a first long training field (LTF), a first signal (SIG) field, at least one additional LTF, and a second SIG field. Additionally, the Greenfield preamble may be utilized for efficient transmission and reception of control information to wireless devices, whereby the control information may be indicated using the STF, the first LTF, or the first or second SIG fields.

公开(公告)号：US20220303890A1

公开(公告)日：2022-09-22

申请号：US17834615

申请日：2022-06-07

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W48/20 ,  H04W48/16

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：US11082189B2

公开(公告)日：2021-08-03

申请号：US17008756

申请日：2020-09-01

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00

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 between the STA and the AP. 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：US20200221388A1

公开(公告)日：2020-07-09

申请号：US16820986

申请日：2020-03-17

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W52/24 ,  H04W74/08 ,  H04W52/12

Abstract: Methods and apparatuses are described herein for determining a transmit power based on clear channel assessment (CCA) thresholds. A station (STA) associated with a first Basic Service Set (BSS) may receive, from an access point (AP) associated with the first BSS, a clear channel assessment (CCA) value for a group of STAs associated with a second BSS. The CCA value may indicate a minimum CCA threshold for a packet received from the second BSS. The STA may then determine, based on the CCA value, a STA specific CCA parameter and a target CCA parameter. The target CCA parameter may be greater than or equal to the STA specific CCA parameter. Based on the STA specific CCA parameter and the target CCA parameter, the STA may determine a target transmit power control (TPC) parameter of the STA, wherein the sum of target TPC parameter and target CCA parameter is constant.