公开(公告)号：WO2012075031A3

公开(公告)日：2012-06-07

申请号：PCT/US2011/062432

申请日：2011-11-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  SAHIN, Onur ,  BALA, Erdem ,  YANG, Rui

Inventor： SAHIN, Onur ,  BALA, Erdem ,  YANG, Rui

IPC: H04J11/00 ,  H04B7/155 ,  H04B7/02

Abstract: A method and apparatus are described for minimizing inter-cell interference at multiple wireless transmit/receive units (WTRUs) using a shared node (SN). Each WTRU may be configured to receive a desired signal transmitted by a base station in a cell combined with interfering signals transmitted by other base stations in other cells in a first transmission time interval (TTI), and a precoded signal transmitted by the SN in a second TTI. The WTRUs may buffer the desired and interfering mixed signals received in the first TTI, and then combine the buffered signals with the precoded signal received in the second TTI to minimize the interfering signal's power and maximize the desired signal's power at each WTRU so that the desired signal may be decoded with higher probability. The SN may generate the precoded signal based on codewords or codeword components transmitted by the base stations in the same resource blocks.

公开(公告)号：WO2023091646A1

公开(公告)日：2023-05-25

申请号：PCT/US2022/050373

申请日：2022-11-18

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： DE LA OLIVA, Antonio ,  WANG, Xiaofei ,  GAZDA, Robert ,  YANG, Rui

IPC: H04W48/12

Abstract: A method performed by a station (STA) in an 802.11 wireless local area network. The STA receives, from an access point (AP), a reduced neighbor report. The Reduced Neighbor Report includes a Neighbor AP Information field, that includes information regarding a target beacon transmission time (TBTT) of an enhanced broadcast services (EBCS) Info frame transmission by a neighbor AP. The STA receives the EBCS Info frame from the neighbor AP based on the receiving reduced neighbor report. The neighbor AP information field may include an indication that the neighbor AP information field contains at least one EBCS Info Frame Tx Countdown subfield. The STA may receive an EBCS traffic stream from the neighbor AP based on the received EBCS Info frame.

公开(公告)号：WO2023059639A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/045676

申请日：2022-10-04

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： WANG, Xiaofei ,  LIN, Zinan ,  LOU, Hanqing ,  KAMEL, Mahmoud ,  YANG, Rui

IPC: G06N3/08 ,  H04W74/04 ,  H04W84/12

Abstract: A federated learning (FL) and/or a distributed machine learning (ML) model sharing process may be implemented in a wireless network. An access point (AP), station (STA), or the like may provide a FL announcement message indicating that a FL or ML process is in being utilized. A STA receiving the announcement message may provide a FL/ML support frame indicating its participation in FL model sharing. The STA may comprise a local FL model executable on the STA. The STA may update its local FL model based on information in the FL announcement message. The STA may update its local FL model based on information received from other STAs in the network. The FL announcement message may comprise a schedule, and the STA may be configured to train its local FL model in accordance with the schedule. The sharing model process may be implemented in a wireless local area network.

公开(公告)号：WO2022232578A1

公开(公告)日：2022-11-03

申请号：PCT/US2022/027033

申请日：2022-04-29

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： KAMEL, Mahmoud ,  LIN, Zinan ,  LOU, Hanqing ,  WANG, Xiaofei ,  YANG, Rui

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00

Abstract: A method performed by a station (STA) associated with a first access point (AP), wherein the first AP is part of a multi-AP (MAP) set comprising the first AP and at least a second AP, may compromise: receiving, from the second AP that the STA is not associated with, a null data packet announcement (NDPA) frame, the NDPA frame including a Special STA Info field including an association identifier (AID) relating to the association between the STA and the first AP; receiving a null data packet (NDP) frame from the second AP that the STA is not associated with; and transmitting, to the first AP, feedback based on the NDP frame.

公开(公告)号：WO2022115583A1

公开(公告)日：2022-06-02

申请号：PCT/US2021/060791

申请日：2021-11-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： LOU, Hanqing ,  LIN, Zinan ,  WANG, Xiaofei ,  YANG, Rui ,  SUN, Li Hsiang

IPC: H04W52/14 ,  H04W52/24 ,  H04W84/12 ,  H04W52/36

Abstract: A wireless station (STA) for parameterized spatial reuse (PSR) operation. The STA may receive, from a first access point (AP) that the STA is not associated with, a trigger frame. The trigger frame includes a signal (SIG) field that includes a PSR field. The PSR field includes a plurality of subfields each corresponding to a respective subchannel associated with the trigger frame. This information includes transmission power level information. The STA may then determine, for each subchannel, using the transmission power level information, transmission power upper bounds for each of the subchannels.

公开(公告)号：WO2019213414A1

公开(公告)日：2019-11-07

申请号：PCT/US2019/030429

申请日：2019-05-02

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： OTERI, Oghenekome ,  LOU, Hanqing ,  SUN, Li-Hsiang ,  SAHIN, Alphan ,  OLESEN, Robert L. ,  WANG, Xiaofei ,  YANG, Rui

IPC: H04W74/08 ,  H04L5/14

Abstract: Methods and apparatuses are described herein for multiple access schemes for Wireless Local Area Network (WLAN) with full-duplex radios. For example, an access point (AP), in response to receiving a request to send (RTS) from a first station (STA), may transmit a full-duplex clear to send (FD CTS) to the first STA and a full-duplex request to send (FD RTS) to a second STA. In response to transmitting the FD RTS to the second STA, the AP may receive a clear to send (CTS) from the second STA. The AP may transmit, to both the first STA and the second STA, a FD trigger frame that includes scheduling information to enables FD communication with the first STA for uplink (UL) data and the second STA for downlink (DL) data at a same time. The scheduling information may include timing information and channel information for the FD communication.

公开(公告)号：WO2018232101A1

公开(公告)日：2018-12-20

申请号：PCT/US2018/037510

申请日：2018-06-14

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： OTERI, Oghenekome ,  SAHIN, Alphan ,  LOU, Hanqing ,  SUN, Li-Hsiang ,  YANG, Rui

IPC: H04B7/04 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/06 ,  H04L5/00

Abstract: Methods and an apparatus are disclosed for orthogonal frequency division multiplexing (OFDM) and/or single carrier (SC) based multiple input multiple output (MIMO) hybrid beamforming (HBF) including determining the capabilities of a station (STA) such as the capability for hybrid beamforming, single user MIMO (SU-MIMO), and multi user MIMO (MU-MIMO). An announcement frame with a control trailer may be transmitted to signal a transmission configuration. The announcement frame may be a grant frame or a request to send (RTS) frame if the STA is SU-MIMO capable or a RTS frame or a DMG clear to send (CTS)-self frame if the STA is MU-MIMO capable. One or more directional multi-gigabit (DMG) antennas may be configured based on the announcement frame. One or more sounding symbols may be transmitted and feedback may be provided based on the sounding symbols. An HBF signal may be transmitted based on the sounding symbol(s) and/or feedback.

公开(公告)号：WO2017200842A3

公开(公告)日：2017-11-23

申请号：PCT/US2017/032201

申请日：2017-05-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： LOU, Hanqing ,  YANG, Rui ,  XI, Fengjun ,  SHAH, Nirav B.

IPC: H04L5/00 ,  H04L1/04 ,  H04L1/06 ,  H04L27/26

Abstract: Modulating millimeter waves may be embodied via a plurality of means. In at least one embodiment of the process disclosed herein, the process includes receiving, at a transmitter, a set of bits (802). The process also includes generating at least two complex-valued symbols based on the set of bits using a pipelined modulation at least in part by (i) mapping the set of bits to a first symbol using a first constellation mapping (806) and (ii) mapping the set of bits to a second symbol using a second constellation mapping (818). The process also includes selecting a first data communication resource (810) in a first single carrier channel for the first symbol and selecting a second data communication resource (828) in a second single carrier channel for the second symbol. The process also includes transmitting, via the transmitter, the first and second symbols using the respective selected data communication resources.

公开(公告)号：WO2017044696A1

公开(公告)日：2017-03-16

申请号：PCT/US2016/050882

申请日：2016-09-09

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： LOU, Hanqing ,  OTERI, Oghenekome ,  ZHANG, Guodong ,  OLESEN, Robert L. ,  YANG, Rui

IPC: H04W52/10 ,  H04W52/14 ,  H04W84/12 ,  H04W52/24 ,  H04W52/22

CPC classification number: H04W52/10 ,  H04B17/318 ,  H04W52/146 ,  H04W52/228 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W84/12

Abstract: Methods and systems for operation in a WLAN are provided. Methods and systems for a transmit power control (TPC) scheme are disclosed. In an embodiment, an access point (AP) may send a trigger frame to one or more stations (STAs) for synchronizing and scheduling uplink (UL) multi-user (MU) transmissions. The trigger frame may contain an open-loop power control index 1 and a power adjustment index 2. The one or more STAs may estimate pathloss using an indicated AP transmit power and received power to set a baseline transmit power. The one or more STAs may adjust their transmit power in the UL transmission period to be the indicated target receive power at the AP.

Abstract translation: 提供了WLAN中操作的方法和系统。 公开了用于发射功率控制（TPC）方案的方法和系统。 在一个实施例中，接入点（AP）可以向一个或多个站（STA）发送触发帧，用于同步和调度上行链路（UL）多用户（MU）传输。 触发帧可以包含开环功率控制索引1和功率调整指数2.一个或多个STA可以使用指示的AP发射功率和接收功率来估计路径损耗以设置基线发射功率。 一个或多个STA可以在UL传输周期中将其发射功率调整为AP处的指示的目标接收功率。

公开(公告)号：WO2017044529A1

公开(公告)日：2017-03-16

申请号：PCT/US2016/050627

申请日：2016-09-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： LOU, Hanqing ,  ZHANG, Guodong ,  SUN, Li-Hsiang ,  OTERI, Oghenekome ,  OLESEN, Robert L. ,  XI, Fengjun ,  YANG, Rui ,  WANG, Xiaofei

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W72/121

Abstract: A method and apparatus for multi-user concurrent random access for wireless local area networks (WLANs) is described. The method, implemented in a wireless transmit/receive unit (WTRU), includes detecting a trigger frame for uplink (UL) multi-user (MU) transmission. The trigger frame includes an assignment of resource units (RUs) for random access in upcoming UL MU packet data convergence protocol (PDCP) protocol data units (PPDUs) and an indication that the trigger frame is one of a plurality of trigger frames in a cascading sequence of trigger frames in an MU transmission opportunity (TxOP). The method further includes selecting one of the RUs in the assignment of RUs for a random access transmission and sending the random access transmission on the selected one of the RUs.

Abstract translation: 描述了用于无线局域网（WLAN）的多用户并发随机接入的方法和装置。 在无线发射/接收单元（WTRU）中实施的该方法包括检测用于上行链路（UL）多用户（MU）传输的触发帧。 触发帧包括在即将到来的UL MU分组数据会聚协议（PDCP）协议数据单元（PPDU）中随机接入的资源单元（RU）的分配以及触发帧是级联中的多个触发帧之一的指示 MU传输机会（TxOP）中的触发帧序列。 所述方法还包括在随机接入传输的RU的分配中选择一个RU，并在所选择的一个RU上发送随机接入传输。