公开(公告)号：US20240243862A1

公开(公告)日：2024-07-18

申请号：US18558000

申请日：2022-04-29

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04L5/00

CPC分类号： H04L5/0033

摘要： 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：US20240223250A1

公开(公告)日：2024-07-04

申请号：US18556787

申请日：2022-04-22

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04B7/06

CPC分类号： H04B7/0617 ,  H04B7/0626 ,  H04B7/0632

摘要： A station (STA) that is associated with a first access point (AP), that is a member of a multi-AP set receives a trigger frame from a second AP that is also a member of the multi-AP set. The STA is not associated with the second AP. The trigger frame includes an association identifier (AID) relating to the association between the STA and the first AP, and an AP identifier (APID) of the first AP. The STA transmits a feedback message, to the second AP, including information indicative of a channel quality of a communication channel between the STA and the second AP. Various formats for a trigger frame to solicit feedback from an OBSS STA, are disclosed.

公开(公告)号：US20240187084A1

公开(公告)日：2024-06-06

申请号：US18438321

申请日：2024-02-09

申请人： InterDigital Patent Holdings, Inc.

发明人： Guodong Zhang ,  Xiaofei Wang ,  Sudheer A Grandhi ,  Hanqing Lou

IPC分类号： H04B7/155 ,  H04W36/08 ,  H04W40/24 ,  H04W52/02 ,  H04W84/04 ,  H04W84/12

CPC分类号： H04B7/15507 ,  H04W40/244 ,  H04W52/0216 ,  H04W52/0229 ,  H04W84/047 ,  H04W36/08 ,  H04W84/12 ,  Y02D30/70

摘要： A method performed by STA may comprise receiving, from a first AP, a first beacon frame comprising a first relay information element including a first field that indicates whether a root AP BSSID field is included in the first relay information element, determining that a first root AP BSSID field is included in the first relay information element and determining that the first AP is a relay AP of a root AP identified by the first root AP BSSID field. The method may further comprise receiving, from a second AP, a second beacon frame comprising a second relay information element including a second field that indicates whether a root AP BSSID is included in the second relay information element and determining that a root AP BSSID field is not included in the second information element and determining that the second AP is a root AP.

公开(公告)号：US20240120972A1

公开(公告)日：2024-04-11

申请号：US18537384

申请日：2023-12-12

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B17/318 ,  H04B17/336 ,  H04W80/08

CPC分类号： H04B7/0417 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/088 ,  H04B17/318 ,  H04B17/336 ,  H04W80/08

摘要： Methods and apparatuses for multiple input-multiple output (MIMO) channel access are provided herein. A method performed by a station (STA) may include receiving, from an initiating STA, a frame including information indicating a broadcast address and a control trailer. The control trailer may include information indicating that a multi-user multiple input-multiple output (MU-MIMO) frame is to be received from the initiating STA, and information indicative of a plurality of STAs, the plurality of STAs including the STA. The method may include transmitting a response frame to the indicated broadcast address based on the received frame and receiving the MU-MIMO frame from the initiating STA.

公开(公告)号：US11937285B2

公开(公告)日：2024-03-19

申请号：US17978542

申请日：2022-11-01

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04B17/309 ,  H04W72/541

CPC分类号： H04W72/541 ,  H04B17/309

摘要： Methods and apparatus for interference discovery for simultaneous transmission and reception are provided. In an embodiment, 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.

公开(公告)号：US11856621B2

公开(公告)日：2023-12-26

申请号：US17515027

申请日：2021-10-29

申请人： InterDigital Patent Holdings, Inc.

发明人： Lei Wang ,  Yousif Targali ,  Sudheer A. Grandhi ,  Xiaofei Wang ,  Guodong Zhang

IPC分类号： H04W76/11 ,  H04W12/06 ,  H04W12/0431 ,  H04W48/08 ,  H04W88/08 ,  H04L12/06 ,  H04W12/04 ,  H04L9/08 ,  H04L9/40 ,  H04W76/10 ,  H04W84/12

CPC分类号： H04W76/11 ,  H04L12/06 ,  H04W12/0431 ,  H04W12/06 ,  H04W48/08 ,  H04W88/08 ,  H04L9/0844 ,  H04L63/0428 ,  H04W12/04 ,  H04W76/10 ,  H04W84/12 ,  Y02D30/70

摘要： A method performed by a STA may comprise receiving a frame, from a first AP including an indication of a configuration change counter (CCC) associated with a second AP. The CCC may be an unsigned integer that increments when an update to one or more AP parameters of the second AP has occurred. The method may further comprise establishing a first wireless link with the first AP and establishing a master key via at least the first wireless link.

公开(公告)号：US20230412217A1

公开(公告)日：2023-12-21

申请号：US18236238

申请日：2023-08-21

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC分类号： H04B7/0452 ,  H04B7/06

CPC分类号： H04B7/0452 ,  H04B7/0619 ,  H04W84/12

摘要： An AP/PCP may perform user selection/pairing/grouping based on a measurement of an analog transmission (e.g., signal to noise ratio (SNR) or signal to interference plus noise ratio (SINR)). The SNRs may be used, for example by the station, to determine best beams and/or beam pairs and/or worst beams and/or beam pairs. A station may feed back the best few beams and/or beam pairs for a Tx and Rx virtual antenna pair. A station may feed back the worst few beams for the Tx and Rx virtual antenna pair. The AP/PCP may receive the indication(s) and/or use the indication(s) to group the stations.

公开(公告)号：US11843970B2

公开(公告)日：2023-12-12

申请号：US17993187

申请日：2022-11-23

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Xiaofei Wang ,  Lei Wang ,  Sudheer A. Grandhi ,  Guodong Zhang

IPC分类号： H04W28/02 ,  H04W52/02 ,  H04W72/23

CPC分类号： H04W28/0278 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/23 ,  Y02B70/30 ,  Y02D30/70

摘要： A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.

公开(公告)号：US20230308938A1

公开(公告)日：2023-09-28

申请号：US18019330

申请日：2021-08-06

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Li Hsiang Sun ,  Hanqing Lou ,  Xiaofei Wang

IPC分类号： H04W28/02 ,  H04W76/20

CPC分类号： H04W28/0278 ,  H04W76/20 ,  H04W84/12

摘要： Methods and apparatus for multi-link (ML) steering and control in wireless local area network (WLAN) are disclosed. A station (STA) multi-link device (MLD) may communicate over a plurality of links. The STA MLD may receive, from an access point (AP) MLD, on a first link of the plurality of links, a first frame comprising a ML element, where the ML element includes pausing information indicating a period of time during which the STA MLD will pause transmission and reception on the first link. The STA MLD may send, to the AP MLD, on a second link of the plurality of links and during the indicated period of time, uplink (UL) traffic, wherein the first link and the second link are multi-directional links. The STA MLD may be non-simultaneous transmit and receive (non-STR), and the AP MLD may be capable of STR.

公开(公告)号：US11770819B2

公开(公告)日：2023-09-26

申请号：US17978250

申请日：2022-11-01

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： H04W72/121 ,  H04W72/04 ,  H04W74/00 ,  H04W74/06 ,  H04W72/0453 ,  H04W74/04 ,  H04L1/00 ,  H04L1/1607 ,  H04W72/20 ,  H04W72/21 ,  H04L1/1829 ,  H04W74/08 ,  H04B17/318 ,  H04W84/12

CPC分类号： H04W72/121 ,  H04L1/0025 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1861 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/21 ,  H04W74/004 ,  H04W74/006 ,  H04W74/04 ,  H04W74/06 ,  H04W74/0816 ,  H04B17/318 ,  H04L1/007 ,  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 the 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.