公开(公告)号：US20210058121A1

公开(公告)日：2021-02-25

申请号：US17093924

申请日：2020-11-10

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0426 ,  H04L25/02 ,  H04W72/08

Abstract: A responder performing a hybrid beam forming operation by having multiple antennas configured to receive a training packet, responsively generate a beam-formed receive signal by processing the received training packet with previously determined analog beam coefficients, determine whether digital baseband channel (DBC) tracking is indicated based on a tracking-type parameter contained within the received training packet, process a non-precoded training signal within the beam-formed receive signal and responsively determine a DBC estimate, and provide a feedback message having transmitter precoder data based on the DBC estimate.

公开(公告)号：US10932184B2

公开(公告)日：2021-02-23

申请号：US16330227

申请日：2017-09-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Alphan Sahin ,  Oghenekome Oteri ,  Rui Yang

IPC: H04W48/12 ,  H04W72/04 ,  H04B7/0413 ,  H04L5/00 ,  H04W48/16

Abstract: Mechanisms may be used for multi-channel (MC) setup and access and waveform designs for millimeter wave (mmW) systems. An access point (AP) that is part of a basic service set (BSS) may provide multi-channel (MC) access to one or more stations (STAs) in the BSS. The AP may monitor for beacon frames transmitted by other access point/personal basic service set (PBSS) control point (AP/PCP) associated with overlapping basic service sets (OBSSs). The monitored beacon frames may include service period (SP) scheduling information for the OBSS. The AP may generate an allocations at least one SPs and/or contention based access periods (CBAPs) channels to be used in a beacon interval in consideration of the SP scheduling information for the OBSS. The AP may transmit a beacon frame STA(s) indicating the SP/CBAP allocations. Other mechanisms may include simultaneous transmission of multiple single carrier (SC) waveforms with non-overlapping waveforms to multiple STAs.

公开(公告)号：US20200037356A1

公开(公告)日：2020-01-30

申请号：US16592283

申请日：2019-10-03

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Li-Hsiang Sun ,  Oghenekome Oteri ,  Robert L. Olesen ,  Fengjun Xi ,  Rui Yang ,  Xiaofei Wang

IPC: H04W74/08 ,  H04W72/12

Abstract: Methods and apparatus are described. A station includes a transceiver and a processor, which detect a trigger frame for an uplink (UL) multi-user (MU) transmission. The trigger frame includes a user information field with an allocation of one or more random access resource units (RUs) and a common information field with information to set high efficiency (HE) SIGNAL-A (HE-SIG-A) fields in the UL MU transmission. The transceiver and the processor generate an HE trigger-based (TB) physical layer protocol data unit (PPDU) and set an HE-SIG-A field in the HE TB PPDU using the information in the trigger frame. The transceiver and the processor select one of the one or more random access RUs and transmit the HE TB PPDU, using the selected one of the one or more random access RUs, a short inter-frame space after the trigger frame.

公开(公告)号：US20190260446A1

公开(公告)日：2019-08-22

申请号：US16331018

申请日：2017-09-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Oghenekome Oteri ,  Hanqing Lou ,  Rui Yang ,  Li-Hsiang Sun

IPC: H04B7/06 ,  H04W72/04

Abstract: Multiple channel transmission in mmW Wireless Local Area Network (WLAN) systems may be provided. Multi-channel aggregation and channel bonding may include, for example, multi-channel aggregation for a single transmitter/receiver pair or multi-channel aggregation and bonding for multiple transmitter/receiver pairs with frequency and space based multiple access. Multi-channel beamforming may include, for example, one analog beam across two channels and analog circuits on each channel or a single analog circuit on both channels, one analog beam across two channels and separate digital precoding schemes on each channel, one analog beam across a primary channel and separate digital precoding schemes on each channel or two analog beams on two channels and separate digital precoding on each channel. Preamble signaling may be provided.

公开(公告)号：US20190068258A1

公开(公告)日：2019-02-28

申请号：US16300263

申请日：2017-05-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Rui Yang ,  Alphan Sahin ,  Hanquing Lou ,  Li-Hsiang Sun

IPC: H04B7/0456 ,  H04B7/0426 ,  H04W72/08 ,  H04L25/02 ,  H04B7/0417

Abstract: A responder performing a hybrid beam forming operation by having multiple antennas configured to receive a training packet, responsively generate a beam-formed receive signal by processing the received training packet with previously determined analog beam coefficients, determine whether digital baseband channel (DBC) tracking is indicated based on a tracking-type parameter contained within the received training packet, process a non-precoded training signal within the beam-formed receive signal and responsively determine a DBC estimate, and provide a feedback message having transmitter precoder data based on the DBC estimate.

公开(公告)号：US20190007973A1

公开(公告)日：2019-01-03

申请号：US16064281

申请日：2017-01-06

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/08

Abstract: Methods and apparatus for protection of multi-user (MU) transmission are described herein. An apparatus includes a receiver, a transmitter and a processor. The receiver and the processor detect a trigger frame for an uplink (UL) multi-user (MU) transmission. The processor and the transmitter generate and send a frame in response to the trigger frame and transmit channel availability information for a plurality of channels in response to the trigger frame. The receiver and the processor detect data in a resource unit (RU) of a downlink (DL) MU physical layer (PHY) protocol data unit (PPDU) on one of the plurality of channels. The one of the plurality of channels is based on the transmitted channel availability information.

公开(公告)号：US20180262366A1

公开(公告)日：2018-09-13

申请号：US15758921

申请日：2016-09-06

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Alphan Sahin ,  Rui Yang ,  Hanqing Lou ,  Oghenekome Oteri ,  Robert L. Olesen ,  Fengjun Xi

IPC: H04L25/02 ,  H04B7/0413

CPC classification number: H04L25/024 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0023 ,  H04L5/0053 ,  H04L25/0204 ,  H04L27/2613

Abstract: Methods, apparatuses, and systems to enable a channel estimation of more than one channel for Multi-Input Multi-Output (MIMO) communications in a wireless network is provided. The method includes determining a first set of complex numbers comprising first channel estimation signal associated with a first channel, determining a second set of complex numbers comprising second channel estimation signal associated with a second channel, and transmitting the first set of complex numbers and the second set of complex numbers via a physical layer (PHY) frame, wherein the second set of complex numbers are complex conjugates of the first set of complex numbers.

公开(公告)号：US20180248591A1

公开(公告)日：2018-08-30

申请号：US15758202

申请日：2016-09-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Chunhua Geng ,  Fengjun Xi ,  Alphan Sahin ,  Rui Yang ,  Oghenekome Oteri ,  Nirav B. Shah ,  Robert L. Olesen ,  Robert La Sita

IPC: H04B7/0413 ,  H04L1/00 ,  H04L5/00

Abstract: Systems, methods, and instrumentalities are disclosed for multiple resource unit (RU) allocation for OFDMA WLAN. A transmitter may parse an encoded bit stream into a plurality of spatial streams. The transmitter may determine an allocation of encoded bits of the plurality of spatial streams to a plurality of interleavers. The transmitter may allocate the encoded bits to the plurality of interleavers based on the determined allocation. The allocation of the encoded bits may be determined based on one or more of channel related feedback, an RU configuration associated with the transmission, a quality of service (QoS), and/or traffic priorities. The transmitter may interleave the encoded bits using the plurality of interleavers. The transmitter may combine the interleaved encoded bits from the plurality of interleavers into a sequenced bit stream.

公开(公告)号：US20180132278A1

公开(公告)日：2018-05-10

申请号：US15569694

申请日：2016-04-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Oghenekome Oteri ,  Li-Hsiang Sun ,  Nirav B Shah ,  Xiaofei Wang ,  Rui Yang ,  Guodong Zhang ,  Robert L Olesen

IPC: H04W74/02 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W74/02 ,  H04L5/0007 ,  H04L5/0094 ,  H04W74/0808 ,  H04W84/12

Abstract: Methods, apparatuses and systems for using at least one sub-channel of a physical channel for uplink communication, the physical channel including a set of resources within first and second channel boundaries such that the physical channel includes a plurality of sub-channels, each sub-channel comprising a subset of the resources of the physical channel and having at least one sub-channel boundary which is not coincident with the first or the second channel boundaries, are provided. One representative apparatus includes a Station (STA) including: a processor, and a transmit/receive unit configured to: transmit, via an uplink, control information including a sub-channel SIG field indicating an identity of the STA, receive a trigger frame indicating one or more sub-channels available form among a plurality of sub-channels, determine which of the one or more sub-channels to acquire, and transmit data, via the uplink, using the one or more acquired sub-channels.

公开(公告)号：US09882684B2

公开(公告)日：2018-01-30

申请号：US15219179

申请日：2016-07-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco Di Girolamo ,  Debashish Purkayastha ,  Athmane Touag

IPC: H04J3/00 ,  H04L1/18 ,  H04W16/24 ,  H04L5/06 ,  H04L5/14 ,  H04L5/00 ,  H04W16/14 ,  H04W28/16 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04L1/1893 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0032 ,  H04L5/0055 ,  H04L5/06 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1469 ,  H04W16/14 ,  H04W16/24 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/082

Abstract: A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.