公开(公告)号：WO2012170794A1

公开(公告)日：2012-12-13

申请号：PCT/US2012/041515

申请日：2012-06-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  DENG, Tao ,  PRAGADA, Ravikumar, V. ,  STERNBERG, Gregory, S. ,  RAGHOTHAMAN, Balaji ,  DENG, Zhuorong ,  VANGANURU, Kiran, K.

Inventor： DENG, Tao ,  PRAGADA, Ravikumar, V. ,  STERNBERG, Gregory, S. ,  RAGHOTHAMAN, Balaji ,  DENG, Zhuorong ,  VANGANURU, Kiran, K.

IPC: H04W8/00

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 send a first beacon based on configuration information provided by the network. The neighbor WTRUs receive the first beacon and may send either a report to the network or send a second beacon to the neighbor seeking WTRU. The network may then provide neighbor WTRU information to the neighbor seeking WTRU. The neighbor discovery may be performed within a pre-defined group of WTRUs that is formed based on proximity to the WTRU and/or an attribute of the WTRU. The neighbor discovery procedure may be performed to find neighbor WTRUs in case where a WTRU fails to find any network. A neighbor list may be generated by the neighbor seeking WTRU by measuring reference signals transmitted by neighbor WTRUs on an uplink to the network.

Abstract translation: 公开了一种用于无线通信系统中的邻居发现的方法和装置。 寻找无线发射/接收单元（WTRU）的邻居可以基于由网络提供的配置信息发送第一信标。 相邻WTRU接收第一信标，并且可以向网络发送报告或者向邻居寻找WTRU发送第二信标。 网络然后可以向邻居寻找WTRU提供相邻WTRU信息。 可以在基于与WTRU的接近度和/或WTRU的属性形成的WTRU的预定义组内执行邻居发现。 在WTRU无法找到任何网络的情况下，可以执行邻居发现过程以找到相邻WTRU。 可以通过在上行链路上测量由相邻WTRU发送的参考信号，由邻居寻找WTRU生成邻居列表。

公开(公告)号：WO2013181369A1

公开(公告)日：2013-12-05

申请号：PCT/US2013/043325

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： VANGANURU, Kiran, K. ,  SHENG, Hongsan ,  STERNBERG, Gregory, S. ,  DENG, Tao ,  RAGHOTHAMAN, Balaji ,  PRAGADA, Ravikumar, V. ,  DENG, Zhuorong ,  FERRANTE, Steven ,  MARINIER, Paul ,  PELLETIER, Benoit ,  PANI, Diana

IPC: H04L5/00

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：WO2013163599A2

公开(公告)日：2013-10-31

申请号：PCT/US2013/038493

申请日：2013-04-26

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： PRAGADA, Ravikumar V. ,  AHMAD, Saad ,  RAGHOTHAMAN, Balaji ,  KAUR, Samian, J. ,  ADJAKPLE, Pascal, M. ,  OLVERA-HERNANDEZ, Ulises ,  DENG, Zhuorong ,  VANGANURU, Kiran, K. ,  STERNBERG, Gregory, S. ,  WANG, Guanzhou ,  STARSINIC, Michael, F. ,  REZNIK, Alexander ,  ZUNIGA, Juan, Carlos ,  ZEIRA, Eldad, M.

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

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.

Abstract translation: 描述了一种用于支持使用D2D互通功能（IWF）的两级设备到设备（D2D）发现的方法和装置。 D2D IWF组件可以被配置为执行在应用服务器上运行的应用和第三代合作项目（3GPP）网络之间的映射，并且提供一组应用程序编程接口（API），以允许将发现提供为服务 D2D应用。 应用标识符可以映射到3GPP标识符。 此外，描述了用于执行客户机 - 服务器发现的方法和装置。 可以将第一无线发射/接收单元（WTRU）配置为仅监听操作，并且第二WTRU可以被配置为传送信标。 第一和第二WTRU可以在接入层（AS）层执行无线接入网（RAN）发现过程。 还描述了使用D2D IWF对D2D服务进行计费的方法和装置。

公开(公告)号：WO2013181421A2

公开(公告)日：2013-12-05

申请号：PCT/US2013/043408

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： RAGHOTHAMAN, Balaji ,  PRAGADA, Ravikumar V. ,  DENG, Zhuorong ,  PANI, Diana ,  PELLETIER, Ghyslain ,  POITAU, Gwenael ,  VANGANURU, Kiran K. ,  STERNBERG, Gregory S.

IPC: H04W76/02

CPC classification number: H04W76/023 ,  H04W8/005 ,  H04W36/0083 ,  H04W76/14 ,  H04W76/18 ,  H04W88/06

Abstract: A method and apparatus for mobility for device-to-device (D2D) communications is disclosed. A WTRU may store a proximity detection configuration that includes a measurement object corresponding to at least one discovery signal property, perform a proximity detection measurement to detect a discovery signal property, and then establish D2D communication. A radio resource control (RRC) Measurement Report may be received from a WTRU. Methods for D2D mobility procedures are also disclosed including mobility to or from a direct path, to or from a local path, to or from an infrastructure path, changing serving cell, and cell reselection. Other embodiments include: behavior upon mobility failure, radio link failure, and direct link failure. Security configuration and activation methods and apparatuses are also disclosed. Network methods for inter-eNB management are also disclosed. Finally, direct path proximity detection measurements and methods and apparatuses for triggering and establishing D2D sessions are disclosed.

Abstract translation: 公开了一种用于设备到设备（D2D）通信的移动性的方法和装置。 WTRU可以存储包括与至少一个发现信号属性对应的测量对象的接近检测配置，执行接近检测测量以检测发现信号属性，然后建立D2D通信。 可以从WTRU接收无线电资源控制（RRC）测量报告。 还公开了用于D2D移动性过程的方法，其包括到或来自本地路径到达或来自基础设施路径的直接路径的移动性，或者来自基础设施路径的改变，以及小区重选。 其他实施例包括：移动性故障的行为，无线电链路故障和直接链路故障。 还公开了安全配置和激活方法和装置。 还公开了用于eNB间管理的网络方法。 最后，公开了用于触发和建立D2D会话的直接路径接近检测测量和方法和装置。

公开(公告)号：WO2013163595A2

公开(公告)日：2013-10-31

申请号：PCT/US2013/038487

申请日：2013-04-26

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： PRAGADA, Ravikumar V. ,  AHMAD, Saad ,  RAGHOTHAMAN, Balaji ,  OLVERA-HERNANDEZ, Ulises ,  DENG, Zhuorong ,  ADJAKPLE, Pascal M. ,  STERNBERG, Gregory S. ,  WANG, Guanzhou ,  REZNIK, Alexander

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。 还描述了用于启动接近服务承载建立的方法和装置。

公开(公告)号：WO2013086362A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/068502

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： DENG, Zhuorong ,  PRAGADA, Ravikumar V. ,  STERNBERG, Gregory S. ,  RAGHOTHAMAN, Balaji ,  DENG, Tao ,  VANGANURU, Kiran K. ,  SHENG, Hongsan ,  FERRANTE, Steven

IPC: H04W72/12

CPC classification number: H04W72/02 ,  H04L47/36 ,  H04W76/14 ,  H04W88/04

Abstract: Direct communication (radio cross link) between nodes (UEs) in advanced topology (LTE) applications. A method includes a first node (user equipment, UE) receiving a cross link grant specifying resources for use by at least the first node (UE) for transmission on the radio cross link (direct link). The first node also performs cross link scheduling per transmission time interval (TTI) within the resources specified in the cross link grant and transmits at least one packet to a second node (second UE) based on the cross link scheduling grant per TTI. In another embodiment, y wireless transmit/receive unit, WTRU (UE), adapted to discard stalled (stored) RLC protocol data units, PDUs, at a helper (assisting, supplemental) WTRU (UE) on the downlink is disclosed, wherein PDUs stored at a logical channel queue or buffer are discarded (dropped) if a discard time set expires. Additionally, a system is claimed in which pairs of WTRU (UEs) are adapted to negotiate a cross link (direct link) scheduling per transmission time interval, TTI, within the resources specified in a cross link grant.

Abstract translation: 高级拓扑（LTE）应用中的节点（UE）之间的直接通信（无线电交叉链路）。 一种方法包括：第一节点（用户设备，UE），其接收指定资源的交叉链路许可，所述资源至少由所述第一节点（UE）用于所述无线电交叉链路（直接链路）上的传输。 第一节点还针对在交叉链路授权中指定的资源内的每个传输时间间隔（TTI）执行交叉链路调度，并且基于每个TTI的交叉链路调度授权将至少一个分组发送到第二节点（第二UE）。 在另一个实施例中，公开了适用于在下行链路上的辅助（辅助的，补充的）WTRU（UE）丢弃停滞的（存储的）RLC协议数据单元PDU的y无线发射/接收单元WTRU，其中PDU 如果丢弃时间设置过期，存储在逻辑信道队列或缓冲区中的数据将被丢弃（丢弃）。 另外，要求一种系统，其中WTRU（UE）对适合于在交叉链路授权中指定的资源内协调每个传输时间间隔TTI的交叉链路（直接链路）调度。

公开(公告)号：WO2013086324A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/068452

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： PRAGADA, Ravikumar V. ,  DENG, Tao ,  RAGHOTHAMAN, Balaji ,  DENG, Zhuorong ,  STERNBERG, Gregory S. ,  VANGANURU, Kiran K.

IPC: H04W76/02 ,  H04W88/04

CPC classification number: H04W76/023 ,  H04W76/14 ,  H04W76/25 ,  H04W76/28 ,  H04W88/04

Abstract: A method and apparatus for controlling crosslink, XL, establishment are disclosed. In the method and apparatus, the XL (203) between a terminal wireless transmit/receive unit, T-WTRU, (201) and a helper WTRU, H-WTRU, (202) is controlled, whereby the T-WTRU (201) and the H-WTRU (202) may be in a radio resource control, RRC, Idle mode and may perform discontinuous reception, DRX. Further, the T-WTRU (201) may transition between infrastructure coverage mode and WTRU-to-WTRU, W2W coverage mode. Additionally, neighbor discovery and H-WTRU selection are performed and association between the T-WTRU (201) and H-WTRU (202) is established and maintained.

Abstract translation: 公开了一种用于控制交联XL的方法和装置。 在该方法和装置中，控制终端无线发射/接收单元T-WTRU（201）和辅助WTRU（H-WTRU）（202）之间的XL（203），由此T-WTRU（201） 并且H-WTRU（202）可以处于无线电资源控制，RRC，空闲模式，并且可以执行不连续接收DRX。 此外，T-WTRU（201）可以在基础设施覆盖模式和WTRU到WTRU之间的W2W覆盖模式下转换。 另外，执行邻居发现和H-WTRU选择，并且建立并维护T-WTRU（201）和H-WTRU（202）之间的关联。

公开(公告)号：WO2013086316A1

公开(公告)日：2013-06-13

申请号：PCT/US2012/068440

申请日：2012-12-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： RAGHOTHAMAN, Balaji ,  PRAGADA, Ravikumar V. ,  DENG, Zhuorong ,  DENG, Tao ,  STERNBERG, Gregory S. ,  VANGANURU, Kiran K. ,  SHENG, Hongsan ,  FERRANTE, Steven

IPC: H04W88/04

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。