公开(公告)号：US11949477B2

公开(公告)日：2024-04-02

申请号：US17516253

申请日：2021-11-01

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04B7/06

CPC分类号： H04B7/0617 ,  H04B7/0695

摘要： Systems, methods, and instrumentalities are disclosed for adaptation of multiple input multiple output (MIMO) mode in mmW Wireless Local Area Network (WLAN) systems. A first station (STA) may receive a mode change request from a second STA. The mode change request may indicate a mode change for a MIMO mode, a polarization mode, and/or an orthogonal frequency-division multiple access (OFDMA) mode. The mode change request may include one or more STA fields. The one or more STA fields may include a STA field associated with the first STA. Each of the one or more STA fields may include a MIMO mode subfield, a polarization mode subfield, and/or an OFDMA mode subfield. The first STA may change the MIMO mode, the polarization mode, and/or the OFDMA mode, for example, based on the mode change request. The first STA may send a mode change response to the second STA.

公开(公告)号：US20240097942A1

公开(公告)日：2024-03-21

申请号：US18372491

申请日：2023-09-25

申请人： InterDigital Patent Holdings, Inc.

发明人： Seyed Mohsen Hosseinian ,  Oghenekome Oteri ,  Liangping Ma

IPC分类号： H04L25/02 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04L25/0204 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0062 ,  H04L25/0202 ,  H04L27/26025 ,  H04L27/26035 ,  H04L27/2613

摘要： Interference for reference symbols in URLLC/eMBB multiplexing may be reduced. URLLC and/or eMBB reference signal (RS) interference may be reduced regardless whether the URLLC and eMBB reference signals and data are multiplexed and superimposed using the same numerology or different numerologies and/or regardless whether the URLLC and eMBB reference signals may be aligned or misaligned (e.g., may or may not use a common resource). An URLLC transmission may preempt an eMBB transmission. For the URLLC and eMBB transmissions using a same numerology, a RS reuse indication may be used. The RS reuse indication may indicate whether a RS in the preempted portion of the eMBB transmission may be reused. A channel estimation function set may be estimated, and channel estimation may be performed using the determined channel estimation function set. The eMBB transmission and the URLLC transmission may be decoded based on the performed channel estimation.

公开(公告)号：US11909530B2

公开(公告)日：2024-02-20

申请号：US17421611

申请日：2020-01-10

申请人： InterDigital Patent Holdings, Inc.

发明人： Xiaofei Wang ,  Hanqing Lou ,  Oghenekome Oteri ,  Li-Hsiang Sun

IPC分类号： H04L1/1812 ,  H04L1/00 ,  H04W74/00 ,  H04W84/12 ,  H04W88/10

CPC分类号： H04L1/1812 ,  H04L1/0025 ,  H04W74/004 ,  H04W84/12 ,  H04W88/10

摘要： A method for use in a wireless transmit/receive unit (WTRU). The method comprises: receiving LRRE information from an AP; determining whether a first condition is satisfied by the WTRU, wherein the first condition is satisfied by the WTRU, on a condition that the first condition is satisfied, sending a mode change request to the AP to change an operation mode to a LRRE HARQ mode; receiving a response regarding the mode change request from the AP; and communicating with the AP using a plurality of PPDUs, each of the PPDUs comprising at least one field enabling transmissions between the WTRU and the AP under the first condition and a LRRE HARQ mode indication.

公开(公告)号：US11895517B2

公开(公告)日：2024-02-06

申请号：US17586329

申请日：2022-01-27

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04W24/08 ,  H04B17/309 ,  H04W48/12 ,  H04B7/06

CPC分类号： H04W24/08 ,  H04B17/309 ,  H04W48/12 ,  H04B7/0617

摘要： An enhanced sector level sweep procedure is provided herein. A method may include transmitting a plurality of beacon frames in a corresponding plurality of transmit sectors, wherein the plurality of beacon frames are transmitted within a beacon interval. The method may include receiving, from a second communication device, a first transmission including information indicating a first ranking. The first ranking is based on a characteristic of at least a first subset of the transmit sectors. The first transmission is received in a sector corresponding to one of the first subset of transmit sectors. The method may include receiving, from a third communication device, a second transmission including information indicating a second ranking. The second ranking is based on a characteristic of at least a second subset of the transmit sectors. The second transmission is received in a sector corresponding to one of the second subset of transmit sectors.

公开(公告)号：US11888663B2

公开(公告)日：2024-01-30

申请号：US17879416

申请日：2022-08-02

申请人： InterDigital Patent Holdings, Inc.

发明人： Fengjun Xi ,  Hanging Lou ,  Oghenekome Oteri ,  Nirav B. Shah ,  Robert L. Olesen ,  Yuan Sheng Jin ,  Pengfei Xia ,  Frank La Sita ,  Guodong Zhang

IPC分类号： H04W72/121 ,  H04L1/1607 ,  H04W28/04 ,  H04W28/06 ,  H04L27/26 ,  H04L1/1829 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0452 ,  H04W84/12

CPC分类号： H04L27/2602 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1861 ,  H04L5/0055 ,  H04W28/04 ,  H04W28/06 ,  H04W72/121 ,  H04B7/0452 ,  H04L5/0007 ,  H04L27/2603 ,  H04L27/26035 ,  H04L2001/0093 ,  H04W84/12

摘要： Mechanisms may be used for aggregating acknowledgement (ACK), block ACK (BA) and/or short packets transmissions for multi-user (MU) wireless communication systems. Aggregation mechanisms may be used for uplink (UL) and/or downlink (DL) orthogonal frequency division multiple access (OFDMA), and/or UL/DL multiple-user multiple input multiple output (MU-MIMO) transmissions, for example. Multi-user short packets may be aggregated and/or simultaneously transmitted for DL, UL, or peer-to-peer (P2P) transmissions.

公开(公告)号：US11877264B2

公开(公告)日：2024-01-16

申请号：US17738672

申请日：2022-05-06

申请人： InterDigital Patent Holdings, Inc.

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

IPC分类号： H04W72/04 ,  H04W72/044 ,  H04L5/00 ,  H04W16/28 ,  H04W84/12

CPC分类号： H04W72/044 ,  H04L5/0055 ,  H04W16/28 ,  H04W84/12

摘要： A method, apparatus, and system for beamforming training using a wireless transmit receive unit (WTRU). A WTRU may receive an indication of a number of space time slots (STSs) from an access point (AP) within a beacon frame during a beamforming training allocation. The WTRU may send a response signal to the AP in a specific STS based on a function of the number of STSs. The WTRU may receive an acknowledgement (ACK) from the AP confirming the response was received. Alternatively, the AP may send a signal indicating that a collision occurred and alter the number of STSs, and the WTRU may try again in the next beamforming training allocation.

公开(公告)号：US11871414B2

公开(公告)日：2024-01-09

申请号：US17291799

申请日：2019-11-08

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Oghenekome Oteri ,  Hanqing Lou ,  Li-Hsiang Sun ,  Xiaofei Wang ,  Alphan Sahin ,  Rui Yang ,  Frank La Sita

IPC分类号： H04W72/20 ,  H04W84/12

CPC分类号： H04W72/20 ,  H04W84/12

摘要： A method of multi-access point (multi-AP) communication performed by a wireless transmit/receive unit (WTRU) comprises: receiving (1510) a first trigger frame from a first access point (AP) of a plurality of APs, the first trigger frame comprising first information; receiving (1520) a second trigger frame from a second AP of the plurality of APs at a predetermined time duration after receiving the first trigger frame, the second trigger frame also comprising the first information of the first trigger frame; generating (1530) a synchronization frame based on the first trigger frame and the second trigger frame, the synchronization frame comprising synchronization information; transmitting the synchronization frame to at least the first AP and the second AP; and receiving (1540) a data transmission based on the synchronization information from each of the first AP and the second AP.

公开(公告)号：US11855931B2

公开(公告)日：2023-12-26

申请号：US18075978

申请日：2022-12-06

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Oghenekome Oteri ,  Hanqing Lou ,  Li Hsiang Sun ,  Alphan Sahin ,  Robert L. Olesen ,  Xiaofei Wang ,  Rui Yang

IPC分类号： H04W72/12 ,  H04W84/12 ,  H04W74/08 ,  H04L5/14 ,  H04L5/04

CPC分类号： H04L5/14 ,  H04W72/12 ,  H04W74/0816 ,  H04W84/12

摘要： 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：US11838161B2

公开(公告)日：2023-12-05

申请号：US17346616

申请日：2021-06-14

申请人： InterDigital Patent Holdings, Inc.

发明人： Alphan Sahin ,  Rui Yang ,  Hanqing Lou ,  Oghenekome Oteri ,  Robert Olesen ,  Fengjun Xi

IPC分类号： H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0452 ,  H04L25/02 ,  H04B7/0413

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

摘要： 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：US11824656B2

公开(公告)日：2023-11-21

申请号：US17385303

申请日：2021-07-26

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Liangping Ma ,  Shahrokh Nayeb Nazar ,  Oghenekome Oteri ,  Seyed Mohsen Hosseinian ,  Mahmoud Taherzadeh Boroujeni ,  Frank La Sita

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04W76/11 ,  H04W72/0446 ,  H04W72/1273

CPC分类号： H04L1/008 ,  H04W72/0446 ,  H04W72/1273 ,  H04W76/11

摘要： Systems, methods and instrumentalities are disclosed for decoding data. For example, it may be determined, in a current slot, whether data received in a previous slot is decoded successfully. The data received in the previous slot may be included in a Physical Downlink Shared Channel (PDSCH). If the data received in the previous slot is not decoded successfully, preemptive multiplexing information may be detected in a first search space. The data received in the previous slot may be decoded, for example, using detected preemptive multiplexing information. The preemptive multiplexing information may be of a current slot. The preemptive multiplexing information may be comprised in a first DCI. A second search space of the current slot may be searched. For example, the second search space may be searched for a second DCI. The first DCI and the second DCI may be different.