公开(公告)号：US20240147370A1

公开(公告)日：2024-05-02

申请号：US18276076

申请日：2022-02-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Nagi Mahalingam ,  Ravikumar Pragada ,  Hussain Elkotby ,  Tanbir Haque

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/0219 ,  H04W52/0229

Abstract: Methods and apparatuses are described herein for chained and delayed wake-up. For example, a station (STA) may determine, at the formation of a group of STAs, a common service period for the group. The STA may determine a deferral time for a first STA of the group. The deferral time may indicate when the first STA wakes up to receive a wake-up packet. The STA may receive, from an access point (AP), during a service period in which the STA acts as a head node for communication with the AP, a wake-up packet addressed to the first STA. The STA may transmit, based on a determination that the deferral time associated with the wake-up packet addressed to the first STA ends after the service period in which the STA acts as a head node, a wake-up command that includes the wake-up packet addressed to the first STA.

公开(公告)号：US20240007168A1

公开(公告)日：2024-01-04

申请号：US18038406

申请日：2021-12-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sanjay Goyal ,  Ravikumar Pragada ,  Hussain Elkotby ,  Tanbir Haque ,  Demir Alpaslan ,  Patrick Cabrol ,  Mihaela Beluri

IPC: H04B7/06 ,  H04B7/024

CPC classification number: H04B7/0695 ,  H04B7/024

Abstract: An Evanescent Cell (EC) refers to a WTRU-centric cell exploiting highly directional transmissions. An EC may comprise one or more beams from one or more BSs/gNBs/TRPs that may be operated by the same or different operators. An EC may be created utilizing knowledge of radio planning having detected the presence of one or more WTRU. A Beam-Group (BG) refers to a group of beams associated with an EC. All beams associated with an EC may be categorized into multiple BGs. Each BG may be made up of one or more beams from multiple BSs/gNBs/TRPs. Multiple BGs within an EC may be enabled to ease the burden of cell management. In one or more embodiments, there may be systems, procedures, and/or devices for EC/BG detection, deactivation, activation, selection, reselection, and augmentation. Further, there may be one or more embodiments for hierarchical system information acquisition as they relate to ECs/BGs.

公开(公告)号：US20230397084A1

公开(公告)日：2023-12-07

申请号：US18031705

申请日：2021-10-14

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yogendra Shah ,  Muhammad Fazili ,  Ravikumar Pragada ,  Arnab Roy

IPC: H04W40/12 ,  H04W40/22

CPC classification number: H04W40/12 ,  H04W40/22

Abstract: An Integrated Access and Backhaul, IAB, node determines link degradation in a primary path to a first Distributed Unit, DU, of a gNB, establishes a secondary path with a second DU of a gNB, detects link failure in the primary path, releases the primary path and makes the second primary path as a new primary path. A first IAB donor node receives an indication of link degradation from an IAB node in a network managed by the first IAB donor node, determines that an available IAB node is in a network managed by a second IAB donor node, sends to the second IAB donor node a request to connect the IAB node with the second IAB donor node and, in case the request is accepted, requests the IAB node to connect with the second IAB donor node. An IAB can also measure channel quality for a first path to a first IAB donor node and for a second path to a second IAB donor node and, in case the channel quality

公开(公告)号：US11818757B2

公开(公告)日：2023-11-14

申请号：US16977708

申请日：2019-03-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Anantharaman Balasubramanian ,  Ravikumar Pragada ,  Nagi Mahalingam

IPC: H04W4/00 ,  H04W74/08 ,  B64C39/02 ,  H04L1/1607 ,  H04L5/00 ,  H04W4/08 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W74/0808 ,  B64C39/024 ,  H04L1/1621 ,  H04L5/0055 ,  H04W4/08 ,  H04W72/23 ,  H04W92/18

Abstract: A wireless transmit/receive unit (WTRU) may receive a downlink communication from a network over a first interface transmitted to one or more WTRUs in a group of WTRUs. The WTRU may determine an access class of the WTRU based on a packet loss percentage of the downlink communication. The access class may be associated with a contention window for accessing a second interface. The WTRU may transmit packet loss information to the one or more WTRUs over the second interface in the contention window. The WTRU may receive packet loss feedback from the one or more WTRUs over the second interface. The WTRU may determine that the access class of the WTRU is a highest class of the one or more WTRUs. The WTRU may transmit a single groupcast negative acknowledgement (gNACK) to the network on behalf of the one or more WTRUs over the first interface.

公开(公告)号：US11790791B2

公开(公告)日：2023-10-17

申请号：US17052713

申请日：2019-04-26

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Mohammad Sarim ,  Matthew Dechering ,  Mohammadreza Radmanesh ,  Manish Kumar ,  Ravikumar Pragada

IPC: G08G5/00 ,  H04L67/125

CPC classification number: G08G5/0043 ,  G08G5/0013 ,  G08G5/0021 ,  G08G5/0073 ,  H04L67/125 ,  G08G5/0069

Abstract: Methods and systems herein relate to unmanned aerial vehicles (UAVs) avoiding collisions by interacting with servers. Some embodiments of a method include receiving, by an unmanned aircraft system (UAS) traffic management (UTM) server one or more intended trajectories from one or more UAVs; determining, by the UTM server one or more conflicts based on the intended trajectories intersecting over a region monitored by the UTM server; and communicating, by the UTM server the one or more conflicts, the communicating includes assigning a value to each of a plurality of three-dimensional (3D) grid cells representing the region monitored by the UTM server, each value representative of a potential for conflict associated with a grid cell; and transmitting, to the one or more UAVs, value data associated with the plurality of grid cells.

公开(公告)号：US20230319747A1

公开(公告)日：2023-10-05

申请号：US18024681

申请日：2021-09-02

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sanjay Goyal ,  Hussain Elkotby ,  Ravikumar Pragada ,  Tanbir Haque ,  Alpaslan Demir ,  Patrick Cabrol ,  Mihaela Beluri

IPC: H04W56/00 ,  H04W68/02

CPC classification number: H04W56/0015 ,  H04W68/02

Abstract: Apparatus for paging for highly directional systems. A WTRU receives a default and/or a dynamic set of active SSBs which indicates the beams/SSBs is used to receive paging DCI, e.g. DCI scrambled with P-RNTI, over PDSCH. A WTRU utilizes the default and/or dynamic set of active SSBs in order to determine PDCCH monitoring occasions, PMOs, that are monitored in the WTRU's paging occasions, POs. A WTRU sends paging activating requests to activate a suitable SSB using associated UL signal/resources, if the suitable SSB fulfills a SSB criteria, if the activation duration has elapsed and if the monitoring duration has elapsed. A WTRU may send one or more paging activation requests to activate multiple SSBs, e.g., a field of view, FOV, around a suitable SSB. Said paging activation requests implements a minimal feedback-based paging procedure for paging in highly directional systems, to which the gNB replies with paging configuration for the suitable SSB.