公开(公告)号：US20250151107A1

公开(公告)日：2025-05-08

申请号：US19007239

申请日：2024-12-31

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Robert Olesen ,  Xiaofei Wang

IPC: H04W74/00 ,  H04B7/0452 ,  H04W80/00

Abstract: Methods, devices and systems are provided for performing for multi-user (MU) transmission. A wireless transmit/receive unit (WTRU) may be configured to receive a frame, decode the received frame and determine whether the received frame is a null data packet (NDP) multi-user (MU) media access control (MAC) physical layer convergence protocol (PLCP) protocol data unit (PPDU) (NDP MU MAC PPDU) based on meeting an NDP condition. The NDP MU MAC PPDU may correspond to an MU transmission and may include a PLCP header which includes an NDP signal (SIG) field having MU control information. Based on the received frame meeting the NDP condition, the WTRU may be further configured to process the NDP SIG field, generate a response based on the NDP SIG field and the MU control information, and transmit the response.

公开(公告)号：US12207294B2

公开(公告)日：2025-01-21

申请号：US18323061

申请日：2023-05-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Robert Olesen ,  Xiaofei Wang

IPC: H04W4/00 ,  H04B7/0452 ,  H04W74/00 ,  H04W80/00

Abstract: Methods, devices and systems are provided for performing for multi-user (MU) transmission. A wireless transmit/receive unit (WTRU) may be configured to receive a frame, decode the received frame and determine whether the received frame is a null data packet (NDP) multi-user (MU) media access control (MAC) physical layer convergence protocol (PLCP) protocol data unit (PPDU) (NDP MU MAC PPDU) based on meeting an NDP condition. The NDP MU MAC PPDU may correspond to an MU transmission and may include a PLCP header which includes an NDP signal (SIG) field having MU control information. Based on the received frame meeting the NDP condition, the WTRU may be further configured to process the NDP SIG field, generate a response based on the NDP SIG field and the MU control information, and transmit the response.

公开(公告)号：US20230388933A1

公开(公告)日：2023-11-30

申请号：US18233940

申请日：2023-08-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Oghenekome Oteri ,  Guodong Zhang ,  Robert Olesen ,  Rul Yang

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/10 ,  H04W74/00

CPC classification number: H04W52/146 ,  H04W52/242 ,  H04W52/245 ,  H04W84/12 ,  H04W52/246 ,  H04W74/006 ,  H04W52/10

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.

公开(公告)号：US20230325864A1

公开(公告)日：2023-10-12

申请号：US18208776

申请日：2023-06-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pengfei Xia ,  Oghenekome Oteri ,  Hanqing Lou ,  Nirav B. Shah ,  Monisha Ghosh ,  Robert Olesen

IPC: A63F13/792 ,  G06N20/00 ,  G06N5/04

CPC classification number: G06Q30/0209 ,  G06Q30/0211 ,  A63F13/792 ,  G06N20/00 ,  G06N5/04

Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.

公开(公告)号：US20230300879A1

公开(公告)日：2023-09-21

申请号：US18323061

申请日：2023-05-24

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Guodong Zhang ,  Robert Olesen ,  Xiaofei Wang

IPC: H04W74/00 ,  H04W80/00 ,  H04B7/0452

CPC classification number: H04W74/006 ,  H04W80/00 ,  H04B7/0452

Abstract: Methods, devices and systems are provided for performing for multi-user (MU) transmission. A wireless transmit/receive unit (WTRU) may be configured to receive a frame, decode the received frame and determine whether the received frame is a null data packet (NDP) multi-user (MU) media access control (MAC) physical layer convergence protocol (PLCP) protocol data unit (PPDU) (NDP MU MAC PPDU) based on meeting an NDP condition. The NDP MU MAC PPDU may correspond to an MU transmission and may include a PLCP header which includes an NDP signal (SIG) field having MU control information. Based on the received frame meeting the NDP condition, the WTRU may be further configured to process the NDP SIG field, generate a response based on the NDP SIG field and the MU control information, and transmit the response.

公开(公告)号：US20220240239A1

公开(公告)日：2022-07-28

申请号：US17719023

申请日：2022-04-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pengfei Xia ,  Oghenekome Oteri ,  Hanqing Lou ,  Nirav B. Shah ,  Monisha Ghosh ,  Robert Olesen

IPC: H04W72/04 ,  H04B7/0491 ,  H04B7/06 ,  H04L1/00 ,  H04B7/0417 ,  H04W16/28

Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.

公开(公告)号：US20220140952A1

公开(公告)日：2022-05-05

申请号：US17578105

申请日：2022-01-18

Applicant: InterDigital Patent Holdings, Inc

Inventor： Monisha Ghosh ,  Hanqing Lou ,  Robert Olesen ,  Oghenekome Oteri ,  Nirav B. Shah ,  Xiaofei Wang ,  Pengfei Xia ,  Guodong Zhang

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/06 ,  H04L1/16

Abstract: Systems, methods, and instrumentalities are provided to implement a method of communicating a feedback in a wireless local area network (WLAN). A WLAN device may receive a data frame with a hybrid automatic repeat request (HARQ) data indicator in a frame header. The WLAN device may send an acknowledgement frame when the data frame is correctly received and decoded. The WLAN device may send a negative acknowledgement frame when the data frame is not correctly received and decoded.

公开(公告)号：US20250150976A1

公开(公告)日：2025-05-08

申请号：US19016511

申请日：2025-01-10

Applicant: InterDigital Patent Holdings, Inc

Inventor： Hanqing Lou ,  Oghenekome Oteri ,  Guodong Zhang ,  Robert Olesen ,  Rui Yang

IPC: H04W52/14 ,  H04B17/318 ,  H04W52/10 ,  H04W52/22 ,  H04W52/24 ,  H04W74/00 ,  H04W84/12 ,  H04W88/02

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.

公开(公告)号：US20250031198A1

公开(公告)日：2025-01-23

申请号：US18908223

申请日：2024-10-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Pengfei Xia ,  Oghenekome Oteri ,  Hanqing Lou ,  Nirav B Shah ,  Monisha Ghosh ,  Robert Olesen

IPC: H04W72/044 ,  A63F13/792 ,  G06N5/04 ,  G06N20/00 ,  G06Q30/0207 ,  G06Q30/0211 ,  H04B7/0417 ,  H04B7/0491 ,  H04B7/06 ,  H04L1/00 ,  H04W16/28

Abstract: A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.

公开(公告)号：US20240129017A1

公开(公告)日：2024-04-18

申请号：US18197198

申请日：2023-05-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Afshin Haghighat ,  Oghenekome Oteri ,  Chunxuan Ye ,  Frank La Sita ,  Robert Olesen ,  Moon-il Lee

IPC: H04B7/08 ,  H04B7/06 ,  H04B17/327 ,  H04W24/10

CPC classification number: H04B7/088 ,  H04B7/0691 ,  H04B7/0695 ,  H04B7/0857 ,  H04B7/0874 ,  H04B7/0882 ,  H04B17/327 ,  H04W24/10 ,  H04B7/0452

Abstract: A WTRU may include a memory and a processor. The processor may be configured to receive beam grouping information from a gNB or transmission and reception point (TRP). The beam grouping information may indicate a group of beams that the WTRU may report using group-based reporting. The group-based reporting may be a reduced level of reporting compared to a beam-based reporting. The group-based report may include measurement information for a representative beam. The representative beam may be one of the beams in the group or represents an average of the beams in the group. Alternatively, the representative beam may be a beam that has a maximum measurement value compared to other beams in the group. The group-based report may include a reference signal received power (RSRP) for the representative beam and a differential RSRP for each additional beamin the beam group.