公开(公告)号：US20240388334A1

公开(公告)日：2024-11-21

申请号：US18781355

申请日：2024-07-23

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Steven Ferrante ,  Arnab Roy ,  Philip J. Pietraski ,  Ravikumar V. Pragada

IPC: H04B7/0452 ,  H04B7/0408 ,  H04W72/20 ,  H04W72/56

Abstract: A method and apparatus are disclosed for communication in a Millimeter Wave Hotspot (mmH) backhaul system which uses mesh nodes. A mmH mesh node may receive a control signal which includes a total number of available control slots. The mesh node may determine the number of iterations of a resource scheduling mechanism that can be made during the time period of all available control slots, based on the number of neighbor nodes for the mesh node. Further, the mesh node may receive control slot information, including information about traffic queues and priorities. The mesh node may then perform resource scheduling using the resource scheduling mechanism based on the currently received control slot information and control slot information received in previous iterations of resource scheduling. The mesh node may also adjust a preamble based on a time between a last packet transmission and a current packet transmission to a neighboring node.

公开(公告)号：US12150107B2

公开(公告)日：2024-11-19

申请号：US18137612

申请日：2023-04-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tao Deng ,  Yugeswar Deenoo ,  Philip J. Pietraski ,  Ravikumar V. Pragada

IPC: H04W72/044 ,  H04W72/23 ,  H04W84/04

Abstract: A wireless transmit/receive unit (WTRU) (e.g., a millimeter WTRU (mWTRU)) may receive a first control channel using a first antenna pattern. The WTRU may receive a second control channel using a second antenna pattern. The WTRU may demodulate and decode the first control channel. The WTRU may demodulate and decode the second control channel. The WTRU may determine, using at least one of: the decoded first control channel or the second control channel, beam scheduling information associated with the WTRU and whether the WTRU is scheduled for an mmW segment. The WTRU may form a receive beam using the determined beam scheduling information. The WTRU receive the second control channel using the receive beam. The WTRU determine, by demodulating and decoding the second control channel, dynamic per-TTI scheduling information related to a data channel associated with the second control channel.

公开(公告)号：US20240365268A1

公开(公告)日：2024-10-31

申请号：US18770114

申请日：2024-07-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Nagi Mahalingam ,  Anantharaman Balasubramanian ,  Mihaela Beluri ,  Ravikumar V. Pragada ,  Mahmoud Taherzadeh Boroujeni ,  Shahrokh Nayeb Nazar ,  Seyed Mohsen Hosseinian ,  Frank La Sita

IPC: H04W56/00 ,  H04B7/185 ,  H04W74/0833

CPC classification number: H04W56/0045 ,  H04B7/18513 ,  H04W56/0005 ,  H04W74/0833

Abstract: Methods, systems, and devices for addressing timing advance (TA) in non-terrestrial network communication is disclosed herein. A wireless transmit and receive unit (WTRU) may receive system information from a base station attached to an airborne or spaceborne vehicle that indicates a physical random access channel (PRACH) resource. The WTRU may determine a timing offset based on a plurality of information, such as the location information and the system information. The WTRU may transmit a preamble using the timing offset via the PRACH resource. The base station may receive the preamble and send a random access response (RAR) that includes, for example, a TA command. The WTRU may receive the RAR including the TA command and combine the timing offset with the TA command to determine an actual TA, after which the WTRU may use the actual TA for uplink transmissions.

公开(公告)号：US20240188172A1

公开(公告)日：2024-06-06

申请号：US18440000

申请日：2024-02-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ravikumar V. Pragada ,  Saad Ahmad ,  Balaji Raghothaman ,  Ulises Olvera-Hernandez ,  Zhuorong Deng ,  Pascal M. Adjakple ,  Gregory S. Sternberg ,  Guanzhou Wang ,  Alexander Reznik

IPC: H04W76/25 ,  H04W68/00 ,  H04W76/14 ,  H04W76/22 ,  H04W76/23 ,  H04W76/28

CPC classification number: H04W76/25 ,  H04W76/14 ,  H04W76/22 ,  H04W68/00 ,  H04W76/23 ,  H04W76/28

Abstract: A method performed by a wireless transmit/receive unit (WTRU) may include sending, to a network, a registration message indicating the WTRU is capable of device-to-device (D2D) communication and sending a request for assistance in discovering at least one other WTRU in proximity to the WTRU. The method may include receiving, from the network, in response to the request for assistance in discovering the at least one other WTRU, assistance information including one or more of a unique identifier or filtering information. The method may include performing, using the assistance information, a device discovery procedure to discover the at least one other WTRU, wherein the device discovery procedure comprises at least one of: monitoring for signals from the at least one other WTRU using the assistance information, or sending a discovery announcement based on the assistance information and transmitting application data directly to the at least one other WTRU.

公开(公告)号：US11979243B2

公开(公告)日：2024-05-07

申请号：US16730565

申请日：2019-12-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ravikumar V. Pragada ,  Saad Ahmad ,  Balaji Raghothaman ,  Samian J. Kaur ,  Pascal M. Adjakple ,  Ulises Olvera-Hernandez ,  Zhuorong Deng ,  Kiran K. Vanganuru ,  Gregory S. Sternberg ,  Guanzhou Wang ,  Michael F. Starsinic ,  Alexander Reznik ,  Juan Carlos Zuniga ,  Eldad M. Zeira

IPC: H04W48/18 ,  H04L12/14 ,  H04L67/51 ,  H04L69/24 ,  H04M15/00 ,  H04W4/24 ,  H04W8/00 ,  H04W12/06 ,  H04W12/062 ,  H04W76/14 ,  H04W84/04 ,  H04L67/104 ,  H04L67/1061 ,  H04W8/20 ,  H04W8/24 ,  H04W60/04

CPC classification number: H04L12/14 ,  H04L67/51 ,  H04L69/24 ,  H04M15/8033 ,  H04W4/24 ,  H04W8/005 ,  H04W12/06 ,  H04W12/062 ,  H04W48/18 ,  H04W76/14 ,  H04W84/042 ,  H04L67/104 ,  H04L67/1061 ,  H04W8/20 ,  H04W8/24 ,  H04W60/04

Abstract: A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.

公开(公告)号：US20240080905A1

公开(公告)日：2024-03-07

申请号：US18500889

申请日：2023-11-02

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tao DENG ,  Philip J. Pietraski ,  Ravikumar V. Pragada ,  Yugeswar Deenoo ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  Mihaela C. Beluri ,  Kyle Jung-Lin Pan

IPC: H04W74/08 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W24/10 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0048 ,  H04L27/2607 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/23 ,  H04W74/006 ,  H04W52/146

Abstract: Methods, devices and systems are provided for performing a random access (RA) procedure. A wireless transmit/receive unit (WTRU) may be configured to receive RA resource sets, where each of the RA resource sets is associated with a node-B directional beam, select an RA resource set from among the RA resource sets, and initiate an RA procedure based on the selected RA resource set. The RA procedure may include selecting multiple preambles which include a preamble for each resource of a plurality of resources corresponding to the selected RA resource set. The WTRU may be configured to sequentially transmit the selected multiple preambles in sequential RA transmissions, and may be configured to receive, from a node-B, in response to the RA transmissions, at least one RA response (RAR), where each of the received at least one RAR corresponds to one of the transmitted multiple preambles.

公开(公告)号：US20240063888A1

公开(公告)日：2024-02-22

申请号：US18466121

申请日：2023-09-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Moon-il Lee ,  Yugeswar Deenoo ,  Tao Deng ,  Janet A. Stern-Berkowitz ,  Ravikumar V. Pragada ,  Mihaela C. Beluri

IPC: H04B7/08 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0408 ,  H04B7/0417

CPC classification number: H04B7/088 ,  H04L5/0053 ,  H04L5/0044 ,  H04B7/086 ,  H04B7/0628 ,  H04B7/0408 ,  H04B7/0417 ,  H04L5/0023 ,  H04L5/0014

Abstract: A wireless transmit/receive unit (WTRU) may be configured to measure a downlink quality associated with at least one first beam. The WTRU may be configured to determine whether the measured downlink quality associated with the at least one first beam is below a threshold value. The WTRU may be configured to receive at least one control channel transmission using a determined second beam, based on, in part, a determination that the measured downlink quality associated with the at least one first beam is below the threshold value. The determined second beam used to receive the at least one control channel transmission may be a same beam that is used to receive an associated data channel transmission. The determined second beam may be from a set of beams. The set of beams may be received via higher layer signaling.

公开(公告)号：US11844113B2

公开(公告)日：2023-12-12

申请号：US17857486

申请日：2022-07-05

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Tao Deng ,  Philip J. Pietraski ,  Ravikumar V. Pragada ,  Yugeswar Deenoo ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  Mihaela C. Beluri ,  Kyle Jung-Lin Pan

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/06 ,  H04W72/044 ,  H04W74/00 ,  H04W72/23 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W52/14 ,  H04W80/02

CPC classification number: H04W74/0833 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0048 ,  H04L27/2607 ,  H04W24/08 ,  H04W24/10 ,  H04W72/046 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W74/006 ,  H04W52/146 ,  H04W80/02

Abstract: Methods, devices and systems are provided for performing a random access (RA) procedure. A wireless transmit/receive unit (WTRU) may be configured to receive RA resource sets, where each of the RA resource sets is associated with a node-B directional beam, select an RA resource set from among the RA resource sets, and initiate an RA procedure based on the selected RA resource set. The RA procedure may include selecting multiple preambles which include a preamble for each resource of a plurality of resources corresponding to the selected RA resource set. The WTRU may be configured to sequentially transmit the selected multiple preambles in sequential RA transmissions, and may be configured to receive, from a node-B, in response to the RA transmissions, at least one RA response (RAR), where each of the received at least one RAR corresponds to one of the transmitted multiple preambles.

公开(公告)号：US11792744B2

公开(公告)日：2023-10-17

申请号：US17567614

申请日：2022-01-03

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Philip J. Pietraski ,  Rui Yang ,  Kai Li ,  Carl Wang ,  Tao Deng ,  Samian Kaur ,  Erdem Bala ,  Ravikumar V. Pragada

IPC: H04W52/34 ,  H04W52/14 ,  H04W52/32 ,  H04W52/30 ,  H04L5/00 ,  H04W16/08 ,  H04W52/28 ,  H04W52/40 ,  H04W36/00 ,  H04W52/36 ,  H04W72/21 ,  H04W24/08 ,  H04W52/24

CPC classification number: H04W52/346 ,  H04W52/146 ,  H04W52/325 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0062 ,  H04L5/0073 ,  H04W16/08 ,  H04W24/08 ,  H04W36/0069 ,  H04W36/0085 ,  H04W52/143 ,  H04W52/242 ,  H04W52/281 ,  H04W52/283 ,  H04W52/30 ,  H04W52/34 ,  H04W52/343 ,  H04W52/367 ,  H04W52/40 ,  H04W72/21 ,  Y02D30/70

Abstract: A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

公开(公告)号：US20230199784A1

公开(公告)日：2023-06-22

申请号：US18108528

申请日：2023-02-10

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Yugeswar Deenoo ,  Tao Deng ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Ravikumar V. Pragada ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/046 ,  H04L5/0007 ,  H04L5/0069

Abstract: Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.