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公开(公告)号：US20170231009A1
公开(公告)日：2017-08-10
申请号：US15581261
申请日：2017-04-28
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B Shah , Guodong Zhang , Ronald Murias
CPC classification number: H04W72/121 , H04B17/318 , H04L1/0025 , H04L1/007 , H04L1/1664 , H04L1/1685 , H04L1/1861 , H04W72/04 , H04W72/0413 , H04W72/0453 , H04W72/1278 , H04W74/004 , H04W74/006 , H04W74/04 , H04W74/06 , H04W74/0816 , H04W84/12
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 request-to-send (G-RTS) message that includes a resource allocation that indicates at least one assigned channel for the WTRU; a transmitter configured to transmit a clear-to-send (CTS) message, to the AP, over the at least one assigned channel of the plurality of channels; and the receiver further configured to receive a data message, from the AP, over at least one channel of the plurality of channels.
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公开(公告)号：US09338789B2
公开(公告)日：2016-05-10
申请号：US13781909
申请日：2013-03-01
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B. Shah , Guodong Zhang , Ronald G. Murias
CPC classification number: H04W72/121 , H04B17/318 , H04L1/0025 , H04L1/007 , H04L1/1664 , H04L1/1685 , H04L1/1861 , H04W72/04 , H04W72/0413 , H04W72/0453 , H04W72/1278 , H04W74/004 , H04W74/006 , H04W74/04 , H04W74/06 , H04W74/0816 , H04W84/12
Abstract: A method and apparatus may provide multi-user parallel channel access (MU-PCA) and/or single-user parallel channel access (SU-PCA) using transmit and/or receive with symmetrical bandwidth, in the downlink (DL), uplink (UL), or combined DL and UL. SU-PCA and MU-PCA may support unequal modulation and coding schemes (MCS) and unequal transmit power. Medium access control (MAC) layer, Physical layer (PHY), and mixed and PHY layer methods and procedures may support UL, DL and combined UL and DL SU-PCA and MU-PCA using transmit and/or receive with symmetrical bandwidth. MU-PCA and/or SU-PCA may also be supported by MAC and PHY layer designs and procedures for downlink, uplink and combined uplink and downlink using transmit/receive with asymmetrical bandwidth.
Abstract translation: 一种方法和装置可以在下行链路（DL），上行链路（DL）中使用具有对称带宽的发射和/或接收来提供多用户并行信道接入（MU-PCA）和/或单用户并行信道接入（SU-PCA） UL）或组合的DL和UL。 SU-PCA和MU-PCA可以支持不相等的调制和编码方案（MCS）和不相等的发送功率。 介质访问控制（MAC）层，物理层（PHY）以及混合和PHY层方法和过程可以使用具有对称带宽的发送和/或接收来支持UL，DL和组合的UL和DL SU-PCA和MU-PCA。 通过使用具有非对称带宽的发送/接收的下行链路，上行链路和组合上行链路和下行链路的MAC和PHY层设计和过程也可以支持MU-PCA和/或SU-PCA。
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13.发明申请公开(公告)号：US20130301569A1
公开(公告)日：2013-11-14
申请号：US13890833
申请日：2013-05-09
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Sudheer A. Grandhi
IPC: H04L5/00
CPC classification number: H04L5/0055 , H04L1/1607 , H04L1/1671 , H04L1/1854 , H04L1/1864 , H04L2001/0093
Abstract: A method and apparatus for transmitting acknowledgements in response to data packets in wireless communication are disclosed. A recipient may receive a plurality of data packets from a plurality of stations and transmit acknowledgements for the data packets to the originating stations in a single transmission. The acknowledgements may be transmitted using multi-user multiple-input multiple-output (MU-MIMO). Alternatively, the acknowledgements may be aggregated and transmitted in the single transmission. A short acknowledgement (ACK) frame may be sent in response to a received frame. The short ACK frame may include an ACK sequence corresponding to a sequence identity (ID) included in the received frame. The short ACK frame may include a short training field (STF) and the ACK sequence. The short ACK frame may be transmitted with a short ACK indication. The short ACK frame may be sent in response to an indication included in the received frame.
Abstract translation: 公开了一种在无线通信中响应于数据分组发送确认的方法和装置。 接收者可以从多个站接收多个数据分组，并且在单个传输中向发起站发送数据分组的确认。 可以使用多用户多输入多输出（MU-MIMO）来发送确认。 或者，可以在单个传输中聚合和发送确认。 可以响应于接收到的帧来发送短确认（ACK）帧。 短ACK帧可以包括对应于包括在接收帧中的序列标识（ID）的ACK序列。 短ACK帧可以包括短训练场（STF）和ACK序列。 可以用短的ACK指示来发送短的ACK帧。 可以响应于包括在接收帧中的指示来发送短ACK帧。
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公开(公告)号：US20130229996A1
公开(公告)日：2013-09-05
申请号：US13781909
申请日：2013-03-01
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B. Shah , Guodong Zhang , Ronald G. Murias
IPC: H04W72/04
CPC classification number: H04W72/121 , H04B17/318 , H04L1/0025 , H04L1/007 , H04L1/1664 , H04L1/1685 , H04L1/1861 , H04W72/04 , H04W72/0413 , H04W72/0453 , H04W72/1278 , H04W74/004 , H04W74/006 , H04W74/04 , H04W74/06 , H04W74/0816 , H04W84/12
Abstract: A method and apparatus may provide multi-user parallel channel access (MU-PCA) and/or single-user parallel channel access (SU-PCA) using transmit and/or receive with symmetrical bandwidth, in the downlink (DL), uplink (UL), or combined DL and UL. SU-PCA and MU-PCA may support unequal modulation and coding schemes (MCS) and unequal transmit power. Medium access control (MAC) layer, Physical layer (PHY), and mixed and PHY layer methods and procedures may support UL, DL and combined UL and DL SU-PCA and MU-PCA using transmit and/or receive with symmetrical bandwidth. MU-PCA and/or SU-PCA may also be supported by MAC and PHY layer designs and procedures for downlink, uplink and combined uplink and downlink using transmit/receive with asymmetrical bandwidth.
Abstract translation: 一种方法和装置可以在下行链路（DL），上行链路（DL）中使用具有对称带宽的发射和/或接收来提供多用户并行信道接入（MU-PCA）和/或单用户并行信道接入（SU-PCA） UL）或组合的DL和UL。 SU-PCA和MU-PCA可以支持不相等的调制和编码方案（MCS）和不相等的发送功率。 介质访问控制（MAC）层，物理层（PHY）以及混合和PHY层方法和过程可以使用具有对称带宽的发送和/或接收来支持UL，DL和组合的UL和DL SU-PCA和MU-PCA。 通过使用具有非对称带宽的发送/接收的下行链路，上行链路和组合上行链路和下行链路的MAC和PHY层设计和过程也可以支持MU-PCA和/或SU-PCA。
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公开(公告)号：US12302390B2
公开(公告)日：2025-05-13
申请号：US16436478
申请日：2019-06-10
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Hanqing Lou , Monisha Ghosh , Xiaofei Wang , Robert L. Olesen
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.
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Patent Agency Ranking
公开(公告)号：US20250031198A1
公开(公告)日：2025-01-23
申请号：US18908223
申请日：2024-10-07
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
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.
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公开(公告)号：US11770819B2
公开(公告)日：2023-09-26
申请号：US17978250
申请日：2022-11-01
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 , H04B17/318 , H04W84/12
CPC classification number: H04W72/121 , H04L1/0025 , H04L1/1664 , H04L1/1685 , H04L1/1861 , H04W72/04 , H04W72/0453 , H04W72/20 , H04W72/21 , H04W74/004 , H04W74/006 , H04W74/04 , H04W74/06 , H04W74/0816 , H04B17/318 , H04L1/007 , H04W84/12
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.
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公开(公告)号：US20230231669A1
公开(公告)日：2023-07-20
申请号：US18186632
申请日：2023-03-20
Applicant: InterDigital Patent Holdings, Inc.
Inventor： Nirav B. Shah , Sudheer A. Grandhi , Ronald G. Murias , Guodong Zhang , Xiaofei Wang , Monisha Ghosh , Hanqing Lou , Robert L. Olesen
CPC classification number: H04L5/0023 , H04L1/0025 , H04L1/0041 , H04L1/0059 , H04L1/0061 , H04L5/0048 , H04L5/0053 , H04L25/0226
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.
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公开(公告)号：US11122444B2
公开(公告)日：2021-09-14
申请号：US14441237
申请日：2013-11-08
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 , H04W72/04 , H04W88/08 , H04B7/0413
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).
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公开(公告)号：US20210204254A1
公开(公告)日：2021-07-01
申请号：US17181938
申请日：2021-02-22
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
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.
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