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1. 发明授权

US11375448B2 Method and system for beacon information provisioning, transmissions and protocol enhancements 有权
公开(公告)号：US11375448B2
公开(公告)日：2022-06-28
申请号：US16358269
申请日：2019-03-19
申请人： InterDigital Patent Holdings, Inc.
发明人： Sudheer A. Grandhi , Lei Wang , Guodong Zhang , Xiaofei Wang , Monisha Ghosh , Hanqing Lou
IPC分类号： H04W48/20 , H04W48/16 , H04B7/0456 , H04B7/06 , H04W48/12
摘要： 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).

2. 发明申请

US20210409969A1 BEAMFORMING METHODS AND METHODS FOR USING BEAMS 有权
公开(公告)号：US20210409969A1
公开(公告)日：2021-12-30
申请号：US17473506
申请日：2021-09-13
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： Hanqing Lou , Pengfei Xia , Monisha Ghosh , Oghenekome Oteri , Robert L. Olesen
IPC分类号： H04W16/28 , H04B7/0408 , H04B7/0452 , H04B7/06 , H04B7/0417 , H04B7/0413 , H04W72/04
摘要： 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).

3. 发明授权

US11191104B2 Systems and methods for fractional carrier sense multiple access with collision avoidance (CSMA/CA) for WLANS 有权
$Systems and methods for fractional carrier sense multiple access with collision avoidance (CSMA/CA) for WLANS$
公开(公告)号：US11191104B2
公开(公告)日：2021-11-30
申请号：US16895775
申请日：2020-06-08
申请人： InterDigital Patent Holdings, Inc.
发明人： Oghenekome Oteri , Hanging Lou , Monisha Ghosh , Robert L. Olesen , Frank La Sita , Xiaofei Wang , Pengfei Xia , Nirav B. Shah
IPC分类号： H04W74/08 , H04W4/08 , H04W24/02 , H04W64/00 , H04W84/12
摘要： 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.

4. 发明授权

US11153908B2 Enhancements for resource allocation in WLAN systems 有权
公开(公告)号：US11153908B2
公开(公告)日：2021-10-19
申请号：US16596365
申请日：2019-10-08
申请人： InterDigital Patent Holdings, Inc.
发明人： Hanqing Lou , Guodong Zhang , Xiaofei Wang , Juan Fang , Oghenekome Oteri , Pengfei Xia , Monisha Ghosh , Robert L. Olesen
IPC分类号： H04W4/00 , H04W74/08 , H04L1/00 , H04L1/16 , H04L1/18 , H04L5/00 , H04W72/04 , H04W84/12
摘要： 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.

5. 发明授权

US10932229B2 Method and apparatus for supporting coordinated orthogonal block-based resource allocation (COBRA) operations 有权
公开(公告)号：US10932229B2
公开(公告)日：2021-02-23
申请号：US13826402
申请日：2013-03-14
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： Hanqing Lou , Ronald G. Murias , Xiaofei Wang , Nirav B. Shah , Monisha Ghosh , Guodong Zhang , Frank La Sita , Robert L. Olesen
IPC分类号： H04W72/04 , H04L5/00 , H04W74/00 , H04L27/26
摘要： 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.

6. 发明申请

US20200053783A1 ENHANCEMENTS FOR RESOURCE ALLOCATION IN WLAN SYSTEMS 审中-公开
公开(公告)号：US20200053783A1
公开(公告)日：2020-02-13
申请号：US16596365
申请日：2019-10-08
申请人： InterDigital Patent Holdings, Inc.
发明人： Hanqing Lou , Guodong Zhang , Xiaofei Wang , Juan Fang , Oghenekome Oteri , Pengfei Xia , Monisha Ghosh , Robert L. Olesen
IPC分类号： H04W74/08 , H04L1/00 , H04L1/16 , H04L1/18 , H04L5/00 , H04W72/04
摘要： 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.

7. 发明授权

US10231251B2 Multi-user parallel channel access in WLAN systems 有权
公开(公告)号：US10231251B2
公开(公告)日：2019-03-12
申请号：US15826818
申请日：2017-11-30
申请人： InterDigital Patent Holdings, Inc.
发明人： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B Shah , Guodong Zhang , Ronald Murias
IPC分类号： H04W72/12 , H04W74/06 , H04W72/04 , H04W74/00 , H04W74/04 , H04L1/00 , H04L1/16 , H04L1/18 , H04W74/08 , H04W84/12 , H04B17/318
摘要： 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.

8. 发明申请

US20170231009A1 MULTI-USER PARALLEL CHANNEL ACCESS IN WLAN SYSTEMS 审中-公开
公开(公告)号：US20170231009A1
公开(公告)日：2017-08-10
申请号：US15581261
申请日：2017-04-28
申请人： InterDigital Patent Holdings, Inc.
发明人： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B Shah , Guodong Zhang , Ronald Murias
IPC分类号： H04W74/08 , H04W72/04 , H04L1/18
CPC分类号： 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
摘要： 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.

9. 发明授权

US09338789B2 Multi-user parallel channel access in WLAN systems 有权
标题翻译： WLAN系统中的多用户并行通道接入
公开(公告)号：US09338789B2
公开(公告)日：2016-05-10
申请号：US13781909
申请日：2013-03-01
申请人： InterDigital Patent Holdings, Inc.
发明人： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Nirav B. Shah , Guodong Zhang , Ronald G. Murias
IPC分类号： H04W72/12 , H04W74/00 , H04W72/04 , H04W74/04 , H04L1/00 , H04L1/16 , H04W84/12 , H04B17/318
CPC分类号： 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
摘要： 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.
摘要翻译：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。

10. 发明申请

US20130301569A1 METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENTS IN RESPONSE TO RECEIVED FRAMES 有权
标题翻译：发送接收框架响应的方法和装置
公开(公告)号：US20130301569A1
公开(公告)日：2013-11-14
申请号：US13890833
申请日：2013-05-09
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： Xiaofei Wang , Hanqing Lou , Monisha Ghosh , Sudheer A. Grandhi
IPC分类号： H04L5/00
CPC分类号： H04L5/0055 , H04L1/1607 , H04L1/1671 , H04L1/1854 , H04L1/1864 , H04L2001/0093
摘要： 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.
摘要翻译：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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