公开(公告)号：US20180176065A1

公开(公告)日：2018-06-21

申请号：US15735327

申请日：2016-06-24

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Tao Deng ,  Steven Ferrante ,  Ravikumar V. Pragada ,  Yugeswar Deenoo ,  Daniel R. Cohen ,  Janet A. Stern-Berkowitz ,  Moon-il Lee ,  Mihaela C. Beluri

IPC分类号： H04L27/26 ,  H04W48/16 ,  H04W56/00 ,  H04B7/08 ,  H04W48/12 ,  H04B7/06

CPC分类号： H04L27/2673 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/088 ,  H04L27/2666 ,  H04W48/12 ,  H04W48/16 ,  H04W56/001

摘要： Methods and apparatus for initial cell search and selection using beamforming are described. An apparatus is configured with multiple receive beams and includes an antenna and a processor. The processor is operatively coupled to the antenna and sweeps a respective one of the multiple receive beams during each of multiple synchronization sub-frames, using a pre-defined sweep time and dwell period, to detect a synchronization signal. The processor also obtains symbol timing information and a synchronization signal index from the detected synchronization signal. The obtained synchronization signal index corresponds to a synchronization signal index of the set. The process decodes a first broadcast channel using the obtained symbol timing information, the obtained synchronization signal index and a predefined or blind-coded symbol distance between the detected synchronization signal and the first broadcast channel. The process decodes a second broadcast channel using information obtained from decoding the first broadcast channel.

公开(公告)号：US20170064583A1

公开(公告)日：2017-03-02

申请号：US15119896

申请日：2015-03-05

申请人： InterDigital Patent Holdings, Inc.

发明人： Arnab Roy ,  Yugeswar Deenoo ,  Ravikumar V. Pragada

IPC分类号： H04W36/00 ,  H04W36/14

CPC分类号： H04W36/0005 ,  H04W36/14 ,  H04W48/16 ,  H04W84/045 ,  H04W84/20

摘要： Systems, methods, and instrumentalities are disclosed for joining a node to a network, the method comprising a station associated with a first node sending a first beacon, wherein the first beacon is sent with an indication that the first beacon is sent from a station entity, and wherein the station associated with the first node belongs to a first personal basic service set (PBSS); the station associated with the first node receiving a transmission from a station associated with a second node that indicates that the station associated with the second node wants to associate with the station associated with a first node, wherein the station associated with the second node is unassociated with the first PBSS; the station associated with the first node sending a message to a PBSS Control Point (PCP) associated with a third node, wherein the message is associated with handover preparation; the station associated with the first node receiving acceptance to change personality to a PCP and perform handover; and the station associated with the first node changing to a PCP and performing handover, wherein the station associated with the first node forms a second PBSS and does not belong to the first PBSS, and wherein handover comprises the PCP associated with the first node associating with the station associated with the second node.

摘要翻译： 公开了用于将节点加入网络的系统，方法和手段，所述方法包括与发送第一信标的第一节点相关联的站，其中所述第一信标被发送，所述指示是从所述站实体发送所述第一信标 ，并且其中与所述第一节点相关联的所述站属于第一个人基本服务集（PBSS）; 与第一节点相关联的站从与第二节点相关联的站接收到指示与第二节点相关联的站想要与与第一节点相关联的站相关联的传输的站，其中与第二节点相关联的站不相关 与第一PBSS; 所述站与所述第一节点相关联地向与第三节点相关联的PBSS控制点（PCP）发送消息，其中所述消息与切换准备相关联; 所述站与所述第一节点接收接受以将个性改变为PCP并执行切换; 并且与第一节点相关联的站改变为PCP并执行切换，其中与第一节点相关联的站形成第二PBSS并且不属于第一PBSS，并且其中切换包括与第一节点相关联的PCP 该站与第二个节点相关联。

公开(公告)号：US20160192433A1

公开(公告)日：2016-06-30

申请号：US14784481

申请日：2014-04-15

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Yugeswar Deenoo ,  Samian Kaur ,  Ravikumar V. Pragada ,  Stephen E. Terry

IPC分类号： H04W76/04 ,  H04W24/08 ,  H04W72/04

CPC分类号： H04W76/048 ,  H04W16/32 ,  H04W24/08 ,  H04W72/042 ,  H04W72/046 ,  H04W76/28 ,  H04W84/045

摘要： Systems, methods, and instrumentalities are provided to implement a method for controlling discontinuous reception (DRX). A wireless transmit/receive unit (WTRU) may enter into a DRX state on a first cell layer. The WTRU may transmit, on a second cell layer, a DRX indication of the first cell layer. The WTRU may receive, on the second cell layer, a deactivation signal corresponding to the first cell layer. The WTRU may deactivate, based on the deactivation signal received on the second cell layer, the first cell layer. The WTRU may receive, on the second cell layer, an activation signal corresponding to the first, cell layer. The WTRU, based on the activation signal, may activate the first cell layer.

摘要翻译： 提供了系统，方法和手段来实现用于控制不连续接收（DRX）的方法。 无线发射/接收单元（WTRU）可以在第一小区层上进入DRX状态。 WTRU可以在第二小区层上发送第一小区层的DRX指示。 WTRU可以在第二小区层上接收对应于第一小区层的去激活信号。 WTRU可以基于在第二小区层上接收的去激活信号来去激活第一小区层。 WTRU可以在第二小区层上接收对应于第一小区层的激活信号。 WTRU基于激活信号可以激活第一小区层。

公开(公告)号：US12101719B2

公开(公告)日：2024-09-24

申请号：US18210828

申请日：2023-06-16

申请人： InterDigital Patent Holdings, Inc.

发明人： Martino Freda ,  Ghyslain Pelletier ,  Tao Deng ,  Paul Marinier ,  Yugeswar Deenoo ,  Aata El Hamss

IPC分类号： H04W52/02

CPC分类号： H04W52/0232 ,  H04W52/0251 ,  H04W52/0277

摘要： Methods and apparatus for power saving in a wireless network are disclosed. A Wireless Transmit/Receive Unit (WTRU) may comprise a transmitter, a receiver, and a processor. The processor may determine a processing state pertaining to behavior of the WTRU and determine a minimum amount of resources to be processed for one or more sets of physical resources based on the determined processing state. Each respective set of physical resources may comprise resources in time, and any of frequency or space. For each respective set of physical resources, the time may comprise a frame structure associated with a numerology applicable to the respective set of physical resources, the frequency may comprise any of a frequency location, a bandwidth, or the numerology, and the space may comprise one or more beams. The processor may process the determined minimum amount of resources of the one of more sets of physical resources.

公开(公告)号：US12047819B2

公开(公告)日：2024-07-23

申请号：US17897468

申请日：2022-08-29

申请人： InterDigital Patent Holdings, Inc.

发明人： Martino M. Freda ,  Ghyslain Pelletier ,  Mouna Hajir ,  Yugeswar Deenoo ,  Paul Marinier

IPC分类号： H04W36/00 ,  H04W36/06 ,  H04W36/08 ,  H04W36/30

CPC分类号： H04W36/0061 ,  H04W36/06 ,  H04W36/08 ,  H04W36/30

摘要： Supplementary uplink (SUL) may be used in wireless systems. Cell suitability criteria may be provided for cells configured with SUL. A Wireless Transmit/Receive Unit (WTRU) may receive paging with an indication of a carrier (e.g., SUL or regular uplink (RUL)) in which to initiate part or all of an initial access. A WTRU that may be performing response-driven paging may provide (e.g. explicit) beam information for beamforming of a paging message on a non-beamformed SUL. A handover (HO) procedure (e.g., carrier selection, configuration handling, HO failure, etc.) may be provided for a WTRU with a configured SUL. A WTRU may request a change of a configured UL. A WTRU may (e.g., autonomously) perform a switch to a different (e.g., configured) uplink, for example, when one or more conditions may be met (e.g., conditional switch). Semi-persistent scheduling (SPS) resources/configuration may be relocated from a first UL to a second UL.

公开(公告)号：US11963237B2

公开(公告)日：2024-04-16

申请号：US17289143

申请日：2019-10-22

申请人： InterDigital Patent Holdings, Inc.

发明人： Nagi Mahalingam ,  Anantharaman Balasubramanian ,  Ravikumar V. Pragada ,  Faris Alfarhan ,  Yugeswar Deenoo

IPC分类号： H04W74/08 ,  H04W72/1263 ,  H04W74/0833

CPC分类号： H04W74/0841 ,  H04W72/1263 ,  H04W74/0866

摘要： Method, apparatus and systems are disclosed. In one representative embodiment, a method may be implemented by a wireless transmit/receive unit (WTRU) for communication via a network access point (NAP). The method may include the WTRU receiving from the NAP a set of preambles and corresponding propagation delay related thresholds and determining propagation delay related information associated with a distance between the WTRU and the NAP or a location in a coverage of the NAP. The method may further include selecting a subset of preambles from the set of preambles based on the determined propagation delay related information, randomly selecting a preamble from the selected subset of preambles, and sending the randomly selected preamble to the NAP.

公开(公告)号：US11889368B2

公开(公告)日：2024-01-30

申请号：US16089899

申请日：2017-03-30

申请人： InterDigital Patent Holdings, Inc.

发明人： J. Patrick Tooher ,  Ghyslain Pelletier ,  Benoit Pelletier ,  Paul Marinier ,  Yugeswar Deenoo ,  Martino M. Freda

IPC分类号： H04W36/00 ,  H04W84/04 ,  H04W24/10 ,  H04W74/08 ,  H04W48/16

CPC分类号： H04W36/0085 ,  H04W24/10 ,  H04W36/0055 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/045

摘要： Methods to perform, maintain and report measurements on a transmission-reception point (TRP) using limited reference signal transmission are described herein. The mobility measurement reports may utilize physical channels. Methods to obtain measurements on neighbor TRPs using limited RS transmissions are also described herein. Random-Access procedures to enable the addition of a neighbor TRP or handover without requiring higher layer signaling (and possibly without an interface between source and target TRP) are also described herein. New triggers to perform RA in order to decrease handover latency are also described herein. Wireless Transmit/Receive Unit (WTRU) behavior upon receiving RAR from multiple possible TRPs are also described herein. For example, a WTRU may store RAR information and use it later in an interrupted RA procedure.

公开(公告)号：US11871360B2

公开(公告)日：2024-01-09

申请号：US17977455

申请日：2022-10-31

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Yugeswar Deenoo ,  Ghyslain Pelletier ,  Martino M. Freda

IPC分类号： H04W52/34 ,  H04W52/02 ,  H04W76/28 ,  H04W24/08 ,  H04W72/23

CPC分类号： H04W52/34 ,  H04W24/08 ,  H04W52/0216 ,  H04W72/23 ,  H04W76/28 ,  Y02D30/70

摘要： A wireless transmit/receive unit (WTRU) is configured to receive a radio resource control (RRC) message. The RRC message may comprise information that indicates an association between each of a plurality of beams and power information. The WTRU is configured to receive a trigger message. The WTRU is configured to select a beam in response to the received trigger message. The WTRU is configured to send a control channel transmission using a power level. The power level may be based on the power information mapped to the selected beam.

公开(公告)号：US11856614B2

公开(公告)日：2023-12-26

申请号：US17699929

申请日：2022-03-21

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Yugeswar Deenoo ,  Ghyslain Pelletier ,  J. Patrick Tooher

IPC分类号： H04W74/08 ,  H04W76/28 ,  H04W72/0446 ,  H04W72/0453 ,  H04W48/08 ,  H04W74/00 ,  H04W4/70 ,  H04L5/00

CPC分类号： H04W74/0833 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/28 ,  H04L5/0007 ,  H04W4/70 ,  H04W48/08 ,  H04W74/006

摘要： Methods and apparatuses for accessing a wireless network are described herein. A method according to at least one embodiment may include receiving a transmission including information associated with a plurality of random access channel (RACH) configurations. The information may indicate a plurality of RACH occasions in which a preamble transmission may be sent. One or more reference signals may be received. Methods may further include sending, using one of the plurality of RACH configurations, the preamble transmission in one of the plurality of RACH occasions along with one or more protocol data units (PDUs). The one of the plurality of RACH configurations may be selected based on a measurement of at least one of the one or more received reference signals. The method may further include sending, in response to the preamble transmission and the one or more PDUs, a random access response.

公开(公告)号：US11804891B2

公开(公告)日：2023-10-31

申请号：US17546467

申请日：2021-12-09

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

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

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

CPC分类号： H04B7/088 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/0628 ,  H04B7/086 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0014

摘要： A wireless transmit/receive unit (WTRU) is configured to receive an identifier of a beam. The WTRU is configured to measure a downlink quality associated with at least one beam. The WTRU is configured to determine whether the measured downlink quality is below a threshold value. The WTRU is configured to receive at least one control channel transmission using the beam of the identifier in response to a determination that the measured downlink quality is below the threshold value, wherein the beam used to receive the at least one control channel transmission is a same beam used to receive an associated data channel transmission.