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    METHOD AND APPARATUS FOR CIPHERING PACKET UNITS IN WIRELESS COMMUNICATIONS
    16.
    发明申请
    METHOD AND APPARATUS FOR CIPHERING PACKET UNITS IN WIRELESS COMMUNICATIONS 审中-公开
    用于在无线通信中进行分组单元的方法和装置

    公开(公告)号：US20140294179A1

    公开(公告)日：2014-10-02

    申请号：US14302070

    申请日：2014-06-11

    Applicant: InterDigital Technology Corporation

    Inventor： Mohammed Sammour ,  Shankar Somasundaram ,  Peter S. Wang ,  Rajat P. Mukherjee ,  Stephen E. Terry ,  Jin Wang

    IPC: H04L9/08 ,  H04W12/04

    CPC classification number: H04L9/0819 ,  H04L2209/24 ,  H04W12/02 ,  H04W12/04 ,  H04W28/06 ,  H04W80/02

    Abstract: A method and apparatus are disclosed relating to ciphering and de-ciphering of packet units in wireless devices during retransmission in wireless communications. The packet units are re-segmented with the ciphering done on the re-segmented packet unit or on a radio link control protocol data unit (RLC PDU) with or without segmentation. Alternatively, the re-segmentation is done on the radio link control service data unit (RLC SDU) with or without segmentation. Alternatively, the ciphering process and multiplexing of the RLC PDU is done in the medium access control (MAC) layer of a MAC PU before undergoing a hybrid automatic repeat request (HARQ) process for retransmission. Further, the ciphering process in the RLC is done on a packet data convergence protocol packet data unit (PDCP PDU).

    Abstract translation: 公开了一种在无线通信中的重传期间关于无线设备中的分组单元的加密和解密的方法和装置。 分组单元通过在重新分段分组单元上或在具有或不具有分段的无线电链路控制协议数据单元（RLC PDU）上完成的加密来重新分段。 或者，在具有或不具有分段的无线电链路控制服务数据单元（RLC SDU）上进行重新分割。 或者，在进行用于重传的混合自动重传请求（HARQ）处理之前，在MAC PU的介质访问控制（MAC）层中完成RLC PDU的加密处理和多路复用。 此外，在分组数据会聚协议分组数据单元（PDCP PDU）中进行RLC中的加密处理。

    CELL RESELECTION AND HANDOVER WITH MULTIMEDIA BROADCAST/MULTICAST SERVICE
    17.
    发明申请
    CELL RESELECTION AND HANDOVER WITH MULTIMEDIA BROADCAST/MULTICAST SERVICE 有权
    多媒体广播/多媒体服务的细胞评估和切换

    公开(公告)号：US20140204829A1

    公开(公告)日：2014-07-24

    申请号：US14220792

    申请日：2014-03-20

    Applicant: InterDigital Technology Corporation

    Inventor： Jin Wang ,  Shankar Somasundaram ,  Mohammed Sammour ,  Ulises Olvera-Hernandez ,  Rajat P. Mukherjee ,  James M. Miller

    IPC: H04W36/18 ,  H04L12/18 ,  H04W74/08

    CPC classification number: H04W36/18 ,  H04L12/189 ,  H04W36/0055 ,  H04W72/005 ,  H04W74/0833

    Abstract: A method and apparatus for providing wireless communication services, (e.g., multimedia broadcast multicast services (MBMS)), are disclosed. A wireless transmit/receive unit (WTRU) detects a plurality of target cell evolved Node-Bs (eNodeBs) that neighbor a serving cell eNodeB. The WTRU evaluates cell reselection criteria and determines a neighboring target cell eNodeB to reselect. The WTRU receives and reads master information block (MIB) and system information messages of the neighboring target cell eNodeB, and confirms that the determined neighboring target cell eNodeB is not part of a multimedia broadcast single frequency network (MBSFN). The WTRU identifies the neighboring target cell eNodeB to the serving cell eNodeB. The WTRU then receives and reads MIB messages of the neighboring target cell eNodeB again to determine whether the system information has changed and, if so, the WTRU reads the system information and reselects to the neighboring target cell eNodeB, which provides the wireless communication services.

    Abstract translation: 公开了一种用于提供无线通信服务（例如，多媒体广播多播服务（MBMS））的方法和装置。 无线发射/接收单元（WTRU）检测与服务小区eNodeB相邻的多个目标小区演进的节点B（eNodeB）。 WTRU评估小区重选准则并确定相邻目标小区eNodeB重新选择。 WTRU接收并读取相邻目标小区eNodeB的主信息块（MIB）和系统信息消息，并且确认所确定的相邻目标小区eNodeB不是多媒体广播单频网络（MBSFN）的一部分。 WTRU向服务小区eNodeB识别相邻目标小区eNodeB。 然后，WTRU再次接收并读取相邻目标小区eNodeB的MIB消息，以确定系统信息是否已经改变，如果是，则WTRU读取系统信息并重新选择到提供无线通信服务的相邻目标小区eNodeB。

    METHOD AND APPARATUS FOR MAINTAINING UPLINK SYNCHRONIZATION AND REDUCING BATTERY POWER CONSUMPTION
    20.
    发明申请
    METHOD AND APPARATUS FOR MAINTAINING UPLINK SYNCHRONIZATION AND REDUCING BATTERY POWER CONSUMPTION 有权

    公开(公告)号：US20230080389A1

    公开(公告)日：2023-03-16

    申请号：US17991220

    申请日：2022-11-21

    Applicant: InterDigital Technology Corporation

    Inventor： Jin Wang ,  John S. Chen ,  Mohammed Sammour ,  Stephen E. Terry ,  Arty Chandra ,  Guodong Zhang

    IPC: H04W56/00 ,  H04W52/02 ,  H04J11/00 ,  H04W72/04

    Abstract: A Node-B sends a polling message to a wireless transmit/receive unit (WTRU). The WTRU sends an uplink synchronization burst in response to the polling message without contention. The Node-B estimates an uplink timing shift based on the synchronization burst and sends an uplink timing adjustment command to the WTRU. The WTRU then adjusts uplink timing based on the uplink timing adjustment command. Alternatively, the Node-B may send a scheduling message for uplink synchronization to the WTRU. The WTRU may send a synchronization burst based on the scheduling message. Alternatively, the WTRU may perform contention-based uplink synchronization after receiving a synchronization request from the Node-B. The WTRU may enter an idle state instead of performing a handover to a new cell when the WTRU moves to the new cell. A discontinuous reception (DRX) interval for the WTRU may be set based on activity of the WTRU.

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