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    METHODS AND APPARATUS FOR FASTER THAN NYQUIST RATE MULTI-CARRIER MODULATION
    31.
    发明申请
    METHODS AND APPARATUS FOR FASTER THAN NYQUIST RATE MULTI-CARRIER MODULATION 审中-公开
    方法和装置比NYQUIS RATE MULTI-CARRIER调制更快

    公开(公告)号：US20160191218A1

    公开(公告)日：2016-06-30

    申请号：US14912337

    申请日：2014-08-15

    Applicant: INTERDIGITAL PATENT HOLDINGS INC.

    Inventor： Erdem Bala ,  Rui Yang ,  Jialing Li

    IPC: H04L5/00 ,  H04L27/26 ,  H04J11/00

    CPC classification number: H04L5/0007 ,  H04J11/0023 ,  H04L5/0044 ,  H04L5/0062 ,  H04L27/264 ,  H04L27/2644

    Abstract: The disclosure pertains to methods and apparatus for Faster than Nyquist (FTN) modulation schemes to increase throughput in multicarrier communication systems and wherein the latency problem inherent in filter bank multicarrier systems (FBMC) is reduced or eliminated by using non-orthogonal waveforms (i.e., faster than Nyquist modulation) in only part(s) of the subframe or packet and orthogonal waveforms in other part(s). The number and spacing between FTN pulses may be selected such that the last sample of the last pulse is received within the time slot allocated to the subframe/packet, thereby eliminating added latency. The FTN modulation scheme may be employed both temporally and in frequency (e.g., the frequency spacing of the channels may be tighter than the Nyquist frequency spacing condition. FTN signaling also may be used as a method to control/coordinate interference between different nodes. For instance, if a node uses FTN, more pulses may be packed into a given period in the time domain and/or more channels may be packed into a given bandwidth in the frequency domain, hence some parts of the band may be vacated for use by others, use by the same node for additional channels, or used with reduced power. The interference control/coordination may be extended to time and frequency. Such FTN schemes may be used with different types of multicarrier systems.

    Abstract translation: 本公开涉及用于提高多载波通信系统中的吞吐量的用于比奈奎斯特（FTN）调制方案更快的方法和装置，并且其中通过使用非正交波形来减少或消除滤波器组多载波系统（FBMC）中固有的等待时间问题（即， 比奈奎斯特调制更快）仅在子帧或分组的一部分中，其他部分的正交波形。 可以选择FTN脉冲之间的数量和间隔，使得在分配给子帧/分组的时隙内接收最后一个脉冲的最后一个样本，从而消除增加的等待时间。 FTN调制方案可以在时间上和频率上使用（例如，信道的频率间隔可以比奈奎斯特频率间隔条件更紧，FTN信令也可以用作控制/协调不同节点之间的干扰的方法。 例如，如果节点使用FTN，则可以在时域中将更多的脉冲打包到给定的时间段内，和/或可以将更多的信道压缩到频域中的给定带宽中，因此频带的某些部分可以腾出以供 其他的，由相同节点用于附加信道，或者以降低的功率使用，干扰控制/协调可以扩展到时间和频率，这样的FTN方案可以与不同类型的多载波系统一起使用。

    SUPERPOSED SIGNALING FOR BANDWIDTH EFFICIENCY
    32.
    发明申请
    SUPERPOSED SIGNALING FOR BANDWIDTH EFFICIENCY 审中-公开
    超强信号用于带宽效率

    公开(公告)号：US20160100414A1

    公开(公告)日：2016-04-07

    申请号：US14875459

    申请日：2015-10-05

    Applicant: InterDigital Patent Holdings, Inc. ,  University of South Florida

    Inventor： Ertugrul Guvenkaya ,  Rui Yang ,  Erdem Bala ,  Huseyin Arslan

    IPC: H04W72/08 ,  H04L5/00 ,  H04L27/26

    CPC classification number: H04L5/0048 ,  H04J11/003 ,  H04J2011/0006 ,  H04L5/0023 ,  H04L5/0069 ,  H04L27/0008 ,  H04L27/2042 ,  H04L27/2602 ,  H04L27/2697 ,  H04L27/362

    Abstract: Systems, methods and instrumentalities are disclosed for superposed signaling for bandwidth efficiency in wireless communications. Homogeneous and heterogeneous signals may be superposed on the same channel. Superposed signals may comprise, for example, multi carrier, frequency division and code division signals, including multiple access, e.g., OFDMA and CDMA, signals. Data for various receivers may be dynamically selected for signal superpositioning, for example, based on radio access technology, communication rate (e.g. high and low rates), distance between transmitter and receiver (e.g. near and far signals). Communication rate and power may be allocated to superposed signals. Interference nulling may be applied, for example, by selecting or excluding spreading codes and/or subcarriers. Nulled locations may be used to transmit critical information. Interference shaping may be applied to modify interference, e.g., by transmitting interference symbols using reserved spreading codes. Support information, e.g., code indices, code length and/or subcarriers, may be signaled to support or optimize performance.

    Abstract translation: 公开了用于无线通信中带宽效率的重叠信令的系统，方法和手段。 均匀和异质信号可以叠加在同一信道上。 叠加信号可以包括例如多载波，分频和码分信号，包括多址（例如，OFDMA和CDMA）信号。 可以例如基于无线电接入技术，通信速率（例如，高速率和低速率），发射机和接收机之间的距离（例如近距离和远距离信号）来动态选择各种接收机的数据用于信号叠加。 通信速率和功率可以分配给叠加的信号。 可以例如通过选择或排除扩展码和/或子载波来应用干扰归零。 空位可用于传送关键信息。 可以应用干扰整形来修改干扰，例如通过使用预留的扩展码发送干扰符号。 支持信息，例如代码索引，代码长度和/或子载波可被用信号通知以支持或优化性能。

    METHODS FOR ENABLING DYNAMIC PUNCTURING IN WLAN SYSTEMS
    34.
    发明申请
    METHODS FOR ENABLING DYNAMIC PUNCTURING IN WLAN SYSTEMS 有权

    公开(公告)号：US20250119191A1

    公开(公告)日：2025-04-10

    申请号：US18834857

    申请日：2023-02-06

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Hanqing Lou ,  Zinan Lin ,  Mahmoud Saad ,  Xiaofei Wang ,  Rui Yang

    IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00

    Abstract: Dynamic puncturing in a wireless local area network (WLAN) supporting 320 MHz bandwidths is disclosed. In one example, a method includes a first station (STA1) transmitting a null data packet announcement (NDPA) frame including an indicator of an orthogonal frequency division multiple access (OFDMA) subchannel puncturing over a wireless medium and subsequently transmitting a null data packet (NDP) having a U-SIG field specifying an OFDMA puncturing pattern. The NDPA may indicate that the subsequent NDP, which preferably occupies an 80 MHz channel, includes the OFDMA puncturing pattern in its U-SIG field. The method may further include transmitting a beamforming report poll (BFRP) soliciting measurement by the receiving station (STA2) on active resources, e.g., subchannels which have not been punctured. STA2 may transmit a beamforming report (BFR) in response to the BFRP, the BFR including measurements of active resources excluding subchannels inactive due to static OFDMA puncturing or dynamic OFDMA puncturing.

    Interference Awareness Procedures for WLAN Systems
    36.
    发明申请
    Interference Awareness Procedures for WLAN Systems 有权

    公开(公告)号：US20250039915A1

    公开(公告)日：2025-01-30

    申请号：US18785586

    申请日：2024-07-26

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Hanqing Lou ,  Zinan Lin ,  Xiaofei Wang ,  Mahmoud Saad ,  Rui Yang

    IPC: H04W72/541

    Abstract: Systems and methods are described for interference awareness in wireless communication systems. A wireless station (STA) may detect an interference event comprising a transmission that will interfere or is interfering with a communication session of the STA with a second device, such as an access point (AP). The first device may transmit, to the second device, an identification of the interference event. The first device may receive, from the second device, a selection of an operation mode of a plurality of modes, transmitted responsive to receipt of the identification of the interference event. The first device may continue the communication session, with the second device, utilizing the selected operation mode.

    CSI feedback in NR-U
    37.
    发明授权
    CSI feedback in NR-U 有权

    公开(公告)号：US12206479B2

    公开(公告)日：2025-01-21

    申请号：US18387349

    申请日：2023-11-06

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Oghenekome Oteri ,  Ahmad Reza Hedayat ,  Shahrokh Nayeb Nazar ,  Rui Yang

    IPC: H04B7/06 ,  H04L5/00 ,  H04W72/23 ,  H04W74/08 ,  H04W74/0808 ,  H04W16/14

    Abstract: Systems, methods, and instrumentalities are described herein that may be used for transmission of one or more DCI, CSI-RS and/or CSI reports. A wireless transmit/receive unit (WTRU) may receive a DCI that includes information indicating two channel state information reference signal (CSI-RS) resources and four CSI reporting resources. Each CSI-RS resource may be associated with two CSI reporting resources. The WTRU may monitor a first CSI-RS resource for a CSI-RS. If the WTRU does not identify the CSI-RS in the first CSI-RS resource, the WTRU may monitor a second CSI-RS resource for the CSI-RS. The WTRU may receive the CSI-RS on the first CSI-RS resource or the second CSI-RS resource. The WTRU may determine availabilities of the first and/or the second CSI reporting resource associated with the CSI-RS resource on which the WTRU received the CSI-RS. The WTRU may transmit a CSI report on an available CSI reporting resource.

    CONFIGURING MULTI-STA SENSING-SPECIFIC FEEDBACK USING NDPA AND TRIGGER FRAMES
    39.
    发明公开
    CONFIGURING MULTI-STA SENSING-SPECIFIC FEEDBACK USING NDPA AND TRIGGER FRAMES 审中-公开

    公开(公告)号：US20240291536A1

    公开(公告)日：2024-08-29

    申请号：US18569028

    申请日：2022-06-10

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Satyanarayana Katla ,  Onur Sahin ,  Mahmoud Saad ,  Rui Yang ,  Zinan Lin

    IPC: H04B7/06 ,  H04W8/22 ,  H04W24/10

    CPC classification number: H04B7/0626 ,  H04W8/22 ,  H04W24/10

    Abstract: Methods and apparatuses are described herein for configuring multiple station (multi-STA) sensing-specific feedback. For example, a sensing initiator station (STA) may transmit, to first and second sensing responder STAs, a null data packet (NDP) announcement (NDPA) frame indicating one or more sensing feedback types that the first and second sensing responder STAs are to respond. The sensing initiator STA may transmit, to the first and second sensing responder STAs, an NDP frame. The sensing initiator STA may transmit, to the first and second sensing responder STAs, a trigger frame indicating one or more resources allocated for sensing measurement reports from the first and second sensing responder STAs. The sensing initiator STA may receive, from the first and second sensing responder STAs, using the one or more resources, the sensing measurement reports determined based on the one or more sensing feedback types.

    INTERFERENCE DISCOVERY AND CANCELLATION FOR WLAN WITH FULL DUPLEX RADIOS
    40.
    发明公开
    INTERFERENCE DISCOVERY AND CANCELLATION FOR WLAN WITH FULL DUPLEX RADIOS 审中-公开

    公开(公告)号：US20240267942A1

    公开(公告)日：2024-08-08

    申请号：US18439286

    申请日：2024-02-12

    Applicant: InterDigital Patent Holdings, Inc.

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

    IPC: H04W72/541 ,  H04B17/309

    CPC classification number: H04W72/541 ,  H04B17/309

    Abstract: In an embodiment for interference discovery for simultaneous transmission and reception, a station (STA) receives a STR request message from an access point (AP). The STA transmits a first STR response message to the AP based on the received STR request message. The STA receives a second STR response message transmitted from a second STA to the AP. The STA determines a received power of the received second STR response message. The STA receives a first trigger message from the AP. The first trigger message indicates a STA role field. The STA transmits interference information to the AP. The interference information is based on the determined received power. The STA role field comprises an indication of at least one or more of a primary STA and a secondary STA. The STA aggregates the interference report with a data transmission to the AP in response to the first trigger message.

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