公开(公告)号：US20250106090A1

公开(公告)日：2025-03-27

申请号：US18975810

申请日：2024-12-10

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Alpaslan Demir ,  Tanbir Haque ,  Ravikumar Pragada ,  Hussain Elkotby ,  Mahmoud Abdelgelil ,  Patrick Cabrol

IPC: H04L27/26

Abstract: A method for initial timing synchronization for a WTRU to communicate with a network includes receiving an in-channel narrowband synchronization sequence from the network to enable initial coarse timing synchronization, determining coarse timing offset and a range between a beam source of a network transmitter and the WTRU, selecting a wideband sequence for fine timing synchronization using the estimated range, transmitting the selected wideband sequence for fine timing synchronization during an uplink timing occasion, receiving from the network a transmission of the selected wideband sequence for fine timing synchronization, and establishing fine timing synchronization between the WTRU and the network using the selected sequence.

公开(公告)号：US12256433B2

公开(公告)日：2025-03-18

申请号：US17951969

申请日：2022-09-23

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Sanjay Goyal ,  Arnab Roy ,  Alpaslan Demir ,  J. Patrick Tooher ,  Janet Stern-Berkowitz ,  Moon-il Lee ,  Lorenza Giupponi ,  Sandra Lagén Morancho ,  Biljana Bojović ,  Mihaela Beluri

IPC: H04W74/0816 ,  H04B7/06

Abstract: A method to reserve a directional channel, such as in an unlicensed spectrum for instance, is disclosed. In an example embodiment, the method may be performed by a receiving node, such as a user equipment (UE) for instance. In such method, the receiving node may receive an enhanced directional transmit request message from a transmitting node and transmit an enhanced directional transmit confirmation message using one or more first beams, with at least one first beam being directed in a first direction towards the transmitting node. Further, the receiving node may transmit at least one additional enhanced directional transmit confirmation message using one or more second beams, with at least one second beam being directed in a second direction towards a potentially interfering node. In the method, the second direction is a different direction than the first direction.

公开(公告)号：US20250048321A1

公开(公告)日：2025-02-06

申请号：US18918980

申请日：2024-10-17

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sanjay Goyal ,  Kevin T. Wanuga ,  Roy Arnab ,  Alpaslan Demir ,  Janet Stern-Berkowitz ,  Mihaela Beluri

IPC: H04W64/00 ,  G01S5/10 ,  H04W24/10

Abstract: A WTRU may track parameters associated with the WTRU or target WTRUs. The parameters may be associated with positioning and/or sidelink communications. The WTRU may receive a configuration for transmission of reference signals to target WTRUs. The WTRU may transmit one or more reference signals on one or more configured sidelink resources. The WTRU may receive respective measurement report(s) from respective target WTRU(s) (e.g., a target WTRU may receive a reference signal transmitted by the WTRU and send an associated measurement report). The WTRU may be configured to send the received target WTRU measurement(s) to the network entity. The WTRU may send each of the received measurements. The WTRU may send the received measurement(s) if condition(s) are satisfied. For example, if a first measurement associated with a first measurement report from a first target WTRU exceeds a first threshold, the WTRU may send the first measurement to the network entity.

公开(公告)号：US12206543B2

公开(公告)日：2025-01-21

申请号：US17795773

申请日：2021-01-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Alpaslan Demir ,  Tanbir Haque ,  Ravikumar Pragada ,  Hussain Elkotby ,  Mahmoud Abdelgelil ,  Patrick Cabrol

IPC: H04L27/06 ,  H04L27/26

Abstract: A method for initial timing synchronization for a WTRU to communicate with a network includes receiving an in-channel narrowband synchronization sequence from the network to enable initial coarse timing synchronization, determining coarse timing offset and a range between a beam source of a network transmitter and the WTRU, selecting a wideband sequence for fine timing synchronization using the estimated range, transmitting the selected wideband sequence for fine timing synchronization during an uplink timing occasion, receiving from the network a transmission of the selected wideband sequence for fine timing synchronization, and establishing fine timing synchronization between the WTRU and the network using the selected sequence.

公开(公告)号：US12127155B2

公开(公告)日：2024-10-22

申请号：US17635478

申请日：2020-08-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Sanjay Goyal ,  Kevin T. Wanuga ,  Arnab Roy ,  Alpaslan Demir ,  Janet Stern-Berkowitz ,  Mihaela Beluri

IPC: H04W24/10 ,  G01S5/10 ,  H04W64/00

CPC classification number: H04W64/00 ,  G01S5/10 ,  H04W24/10

Abstract: A WTRU may track parameters associated with the WTRU or target WTRUs. The parameters may be associated with positioning and/or sidelink communications. The WTRU may receive a configuration for transmission of reference signals to target WTRUs. The WTRU may transmit one or more reference signals on one or more configured sidelink resources. The WTRU may receive respective measurement report(s) from respective target WTRU(s) (e.g., a target WTRU may receive a reference signal transmitted by the WTRU and send an associated measurement report). The WTRU may be configured to send the received target WTRU measurement(s) to the network entity. The WTRU may send each of the received measurements. The WTRU may send the received measurement(s) if condition(s) are satisfied. For example, if a first measurement associated with a first measurement report from a first target WTRU exceeds a first threshold, the WTRU may send the first measurement to the network entity.

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.

公开(公告)号：US09807778B2

公开(公告)日：2017-10-31

申请号：US14733759

申请日：2015-06-08

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Liangping Ma ,  Athmane Touag ,  Martino M. Freda ,  Jean-Louis Gauvreau ,  Chunxuan Ye ,  Alpaslan Demir ,  Amith V. Chincholi

IPC: H04L29/02 ,  H04W72/08 ,  H04L27/00 ,  H04L5/00 ,  H04W16/10 ,  H04W16/14 ,  H04W72/04 ,  H04L1/00 ,  H04W52/36 ,  H04W24/00 ,  H04W24/10

CPC classification number: H04W72/085 ,  H04L1/00 ,  H04L5/0037 ,  H04L5/0058 ,  H04L27/0006 ,  H04W16/10 ,  H04W16/14 ,  H04W24/00 ,  H04W24/10 ,  H04W52/367 ,  H04W72/0453

Abstract: Described herein are methods, metrics and apparatus for bandwidth allocation for cognitive radio. Information that needs to be passed between different components of a dynamic spectrum management (DSM) system for dynamic bandwidth allocation along with the corresponding interfaces is identified. Methods and associated metrics for measuring network performance, evaluating channel sensing results and handling various bandwidth allocation scenarios are presented. Also provided is an admission control mechanism for quality of service support. Alternate channel monitoring may be performed in the background so that when a new channel is needed, an alternate channel may be immediately allocated and service disruption to the DSM system is reduced. A channel may be dynamically assigned as the primary channel in multiple channel scenarios to support tasks such as transmission of acknowledgment frames. Hybrid mode devices that may access a television white space (TVWS) database and perform spectrum sensing are also described.

公开(公告)号：US20170280465A1

公开(公告)日：2017-09-28

申请号：US15621148

申请日：2017-06-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Saad Ahmad ,  Jean-Louis Gauvreau ,  Rocco Di Girolamo ,  Alexander Reznik ,  Liangping Ma ,  Chunxuan Ye ,  Alpaslan Demir ,  Angelo A. Cuffaro

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04L5/0062 ,  H04L5/0066 ,  H04W28/065 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

Abstract: Systems and methods for dynamic white space management are described. First, local handling of channel queries, in which a channel query by a white space device (WSD) is handled by a local dynamic spectrum management (DSM) server, if the DSM server has all the information necessary for providing a response to the channel query. Second, a search extension, in which a WSDB passes part of a search for available channels to a local DSM server. Third, assisting of an available channel calculation, in which a DSM server provides spectrum sensing information to WSDBs to improve the available channel calculation within the WSDBs. And fourth, dynamic bandwidth management to meet the coexistence requirements. In addition, the content of the messages and procedures that enable the above value-adding functions and interactions with the WSDB systems are described.

公开(公告)号：US20170006493A1

公开(公告)日：2017-01-05

申请号：US15266338

申请日：2016-09-15

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Amith V. Chincholi ,  Joseph M. Murray ,  Alpaslan Demir ,  Martino M. Freda ,  Athmane Touag ,  Jean-Louis Gauvreau ,  David S. Bass

IPC: H04W24/10 ,  H04W76/04 ,  H04L12/26 ,  H04W36/00

CPC classification number: H04W24/10 ,  H04L43/106 ,  H04L43/16 ,  H04W36/0088 ,  H04W76/27

Abstract: A method for sensing measurement gap scheduling includes allocating a new supplementary carrier in a license-exempt spectrum by a radio resource management (RRM) entity in an evolved Node B (eNB); configuring a local cognitive sensing entity in the eNB by the RRM entity; configuring a wireless transmit/receive unit (WTRU) for cognitive sensing through radio resource control (RRC) signaling, the RRC signaling being generated by the eNB; configuring a local cognitive sensing entity at the WTRU by a dynamic spectrum management (DSM) entity; and signaling a start and a duration of a measurement gap to an enhanced sensing component.

Abstract translation: 用于感测测量间隙调度的方法包括：通过演进节点B（eNB）中的无线电资源管理（RRM）实体在免许可频谱中分配新的辅助载波; 在RRM实体中配置eNB中的本地认知感知实体; 通过无线电资源控制（RRC）信令来配置用于认知感知的无线发射/接收单元（WTRU），所述RRC信令由eNB生成; 通过动态频谱管理（DSM）实体在WTRU处配置本地认知感测实体; 并向增强的感测组件发出测量间隙的开始和持续时间。

公开(公告)号：US20160337090A1

公开(公告)日：2016-11-17

申请号：US15219179

申请日：2016-07-25

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Jean-Louis Gauvreau ,  Martino M. Freda ,  Zinan Lin ,  Joseph M. Murray ,  Chunxuan Ye ,  Erdem Bala ,  Mihaela C. Beluri ,  Douglas R. Castor ,  Amith V. Chincholi ,  Angelo A. Cuffaro ,  Yuying Dai ,  Alpaslan Demir ,  Joseph Gredone ,  Rui Yang ,  Liangping Ma ,  Rocco Di Girolamo ,  Debashish Purkayastha ,  Athmane Touag

IPC: H04L1/18 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04L1/1893 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0032 ,  H04L5/0055 ,  H04L5/06 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1469 ,  H04W16/14 ,  H04W16/24 ,  H04W28/16 ,  H04W72/0453 ,  H04W72/082

Abstract: A method and apparatus for operating supplementary cells in licensed exempt (LE) spectrum. An aggregating cell operating in a frequency division duplex (FDD) licensed spectrum is aggregated with a LE supplementary cell operating in a time sharing mode for uplink (UL) and downlink (DL) operations. The LE supplementary cell may be an FDD supplementary cell dynamically configurable between an UL only mode, a DL only mode, and a shared mode, to match requested UL and DL traffic ratios. The LE supplementary cell may be a time division duplex (TDD) supplementary cell. The TDD supplementary cell may be dynamically configurable between multiple TDD configurations. A coexistence capability for coordinating operations between the LE supplementary cell with other systems operating in the same channel is provided. Coexistence gaps are provided to measure primary/secondary user usage and permit other systems operating in the LE supplementary cell channel to access the channel.

Abstract translation: 用于在许可豁免（LE）频谱中操作辅助小区的方法和装置。 以频分双工（FDD）许可频谱工作的聚合小区与在上行链路（UL）和下行链路（DL））操作的时分模式下操作的LE补充小区进行聚合。 LE补充小区可以是在仅UL模式，仅DL模式和共享模式之间动态配置的FDD补充小区，以匹配所请求的UL和DL业务比。 LE补充小区可以是时分双工（TDD）补充小区。 TDD补充小区可以在多个TDD配置之间动态配置。 提供了用于协调LE辅助单元与在同一通道中工作的其他系统之间的操作的共存能力。 提供共存间隙以测量主要/次要用户使用，并允许在LE辅助小区信道中操作的其他系统访问信道。