公开(公告)号：US20200344837A1

公开(公告)日：2020-10-29

申请号：US16872875

申请日：2020-05-12

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 ,  H04W76/14 ,  H04W76/22

Abstract: A wireless transmit/receive unit (WTRU) may receive from a network resource allocation information for device to device (D2D) communication. The WTRU may select, from the received resource allocation information for a transmission time interval (TTI), resources for a D2D channel. The WTRU may transmit, with use of the selected resources, data directly to another WTRU.

公开(公告)号：US10045386B2

公开(公告)日：2018-08-07

申请号：US13906055

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Diana Pani ,  Ghyslain Pelletier ,  Gwenael Poitau ,  Kiran K. Vanganuru ,  Gregory S. Sternberg

IPC: H04W76/02 ,  H04W8/00 ,  H04W36/00 ,  H04W88/06

Abstract: A wireless transmit/receive unit (WTRU) may receive discovery related configuration information that includes discovery filtering information and information for a non-long term evolution radio access technology (non-LTE RAT). The WTRU may monitor a device to device (D2D) communication interface on the non-LTE RAT based on the discovery filtering information and send a report that includes information associated with the discovery filtering information. The WTRU may receive a message to allow the WTRU to establish a D2D communication link with another WTRU using the non-LTE RAT.

公开(公告)号：US20140349694A1

公开(公告)日：2014-11-27

申请号：US14363457

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Tao Deng ,  Gregory S. Sternberg ,  Kiran K. Vanganuru ,  Hongsan Sheng ,  Steven Ferrante

IPC: H04W36/08 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04B7/15507 ,  H04W36/00 ,  H04W36/08 ,  H04W40/22 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/10 ,  H04W76/12 ,  H04W76/14 ,  H04W76/25 ,  H04W76/27 ,  H04W88/04

Abstract: A method and apparatus for cross link (XL) establishment are disclosed. In the method and apparatus, a XL between a terminal wireless transmit/receive unit (T-WTRU) and a helper WTRU (H-WTRU) is established. The T-WTRU and the H-WTRU may be configured to operate in a plurality of RRC states and a plurality of RRC substates. To establish the XL, neighbor discovery, association information exchange, and a H-WTRU selection may be performed. Radio resource control (RRC) configuration of the T-WTRU and the H-WTRU may also be performed. In the method and apparatus, coverage for a T-WTRU may be handed over between a network and a H-WTRU or between two H-WTRUs.

Abstract translation: 公开了一种用于交叉（XL）建立的方法和装置。 在该方法和装置中，建立终端无线发射/接收单元（T-WTRU）和辅助WTRU（H-WTRU）之间的XL。 T-WTRU和H-WTRU可以被配置为在多个RRC状态和多个RRC子状态中操作。 为了建立XL，可以执行邻居发现，关联信息交换和H-WTRU选择。 也可以执行T-WTRU和H-WTRU的无线电资源控制（RRC）配置。 在该方法和装置中，T-WTRU的覆盖可以在网络和H-WTRU之间或两个H-WTRU之间切换。

公开(公告)号：US10652947B2

公开(公告)日：2020-05-12

申请号：US15923710

申请日：2018-03-16

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 ,  H04W76/14 ,  H04W76/22 ,  H04W76/23 ,  H04W76/28 ,  H04W68/00

Abstract: A wireless transmit/receive unit (WTRU) may receive from a network resource allocation information for device to device (D2D) communication. The WTRU may select, from the received resource allocation information for a transmission time interval (TTI), resources for a D2D channel. The WTRU may transmit, with use of the selected resources, data directly to another WTRU.

公开(公告)号：US20170156046A1

公开(公告)日：2017-06-01

申请号：US15362295

申请日：2016-11-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tao Deng ,  Ravikumar V. Pragada ,  Gregory S. Sternberg ,  Balaji Raghothaman ,  Zhuorong Deng ,  Kiran K. Vanganuru

IPC: H04W8/00 ,  H04W48/14 ,  H04W24/10

CPC classification number: H04W8/005 ,  H04W24/04 ,  H04W24/08 ,  H04W24/10 ,  H04W48/08 ,  H04W48/14 ,  H04W76/18 ,  H04W88/06

Abstract: A method and apparatus for neighbor discovery in a wireless communication system are disclosed. A neighbor seeking wireless transmit/receive unit (WTRU) may search for a first signal to discover neighbor WTRUs for peer-to-peer communication. The WTRU may then receive the first signal. Further, the WTRU may generate a report based on the received first signal. Then, the WTRU may send a second signal carrying the report to a cellular wireless network. The first signal may include a beacon for neighbor discovery or a synchronization signal or both. The report may contain at least one neighbor WTRU identity or at least a portion of a time value or both. Further, the report may contain a counter value, including at least a portion of a time value. The counter value may be based on a time source. In addition, the first signal may be received from a synchronization source.

公开(公告)号：US20130322277A1

公开(公告)日：2013-12-05

申请号：US13906193

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC

Inventor： Kiran K. Vanganuru ,  Hongsan Sheng ,  Gregory S. Sternberg ,  Tao Deng ,  Balaji Raghothaman ,  Ravikumar V. Pragada ,  Zhuorong Deng ,  Steven Ferrante ,  Paul Marinier ,  Benoit Pelletier ,  Diana Pani

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0051

Abstract: Disclosed herein are measurement and interference avoidance for direct device-to-device (D2D) links. A method may be implemented by a wireless transmit/receive unit (WTRU). The method may include determining a sounding reference signal (SRS) to detect high interference and facilitate measurements on a link with another WTRU. The method may also include using the SRS on a direct link with another WTRU.

Abstract translation: 这里公开了直接设备到设备（D2D）链路的测量和干扰避免。 无线发射/接收单元（WTRU）可以实现一种方法。 该方法可以包括确定探测参考信号（SRS）以检测高干扰并促进对与另一WTRU的链路的测量。 该方法还可以包括在与另一WTRU的直接链路上使用SRS。

公开(公告)号：US20130287012A1

公开(公告)日：2013-10-31

申请号：US13871837

申请日：2013-04-26

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: H04W76/04

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

Abstract: A method and apparatus are described for maintaining communications over a bearer when at least one of two wireless transmit/receive units (WTRUs) transition to idle mode. In one case, a direct WTRU-to-WTRU bearer may be released in response to a first one of the WTRUs transitioning to idle mode. A second one of the WTRUs may send a first of a plurality of packets to the first WTRU via a default packet data network (PDN) connection or a default bearer towards the PDN connection. The first packet may have a destination Internet protocol (IP) address of the second WTRU and trigger paging to the first WTRU. The first WTRU may transition to connected mode in response to the paging. Other cases may release a portion of a bearer, rather than the entire bearer. A method and apparatus for initiating proximity service bearer establishment is also described.

Abstract translation: 描述了当两个无线发射/接收单元（WTRU）中的至少一个转换到空闲模式时，通过承载来维持通信的方法和装置。 在一种情况下，可以响应于转换到空闲模式的第一个WTRU来释放直接WTRU到WTRU的承载。 第二个WTRU可以经由默认分组数据网络（PDN）连接或向PDN连接的默认承载来向第一WTRU发送多个分组中的第一个分组。 第一分组可以具有第二WTRU的目的地因特网协议（IP）地址并且触发对第一WTRU的寻呼。 响应于寻呼，第一WTRU可以转换到连接模式。 其他情况可能会释放承载的一部分，而不是整个承载。 还描述了用于发起邻近服务承载建立的方法和装置。

公开(公告)号：US20240275624A1

公开(公告)日：2024-08-15

申请号：US18618664

申请日：2024-03-27

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

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：US11903075B2

公开(公告)日：2024-02-13

申请号：US16872875

申请日：2020-05-12

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 ,  H04W76/14 ,  H04W76/22 ,  H04W76/23 ,  H04W76/28 ,  H04W68/00

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

Abstract: A wireless transmit/receive unit (WTRU) may receive from a network resource allocation information for device to device (D2D) communication. The WTRU may select, from the received resource allocation information for a transmission time interval (TTI), resources for a D2D channel. The WTRU may transmit, with use of the selected resources, data directly to another WTRU.

公开(公告)号：US10257687B2

公开(公告)日：2019-04-09

申请号：US15362295

申请日：2016-11-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Tao Deng ,  Ravikumar V. Pragada ,  Gregory S. Sternberg ,  Balaji Raghothaman ,  Zhuorong Deng ,  Kiran K. Vanganuru

IPC: H04W4/00 ,  H04W8/00 ,  H04W76/18 ,  H04W24/04 ,  H04W24/08 ,  H04W48/08 ,  H04W48/14 ,  H04W24/10 ,  H04W88/06

Abstract: A method and apparatus for neighbor discovery in a wireless communication system are disclosed. A neighbor seeking wireless transmit/receive unit (WTRU) may search for a first signal to discover neighbor WTRUs for peer-to-peer communication. The WTRU may then receive the first signal. Further, the WTRU may generate a report based on the received first signal. Then, the WTRU may send a second signal carrying the report to a cellular wireless network. The first signal may include a beacon for neighbor discovery or a synchronization signal or both. The report may contain at least one neighbor WTRU identity or at least a portion of a time value or both. Further, the report may contain a counter value, including at least a portion of a time value. The counter value may be based on a time source. In addition, the first signal may be received from a synchronization source.