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    WIRELESS COMMUNICATION METHOD AND APPARATUS COORDINATING NODE-B'S AND SUPPORTING ENHANCED UPLINK TRANSMISSIONS DURING HANDOVER
    51.
    发明申请
    WIRELESS COMMUNICATION METHOD AND APPARATUS COORDINATING NODE-B'S AND SUPPORTING ENHANCED UPLINK TRANSMISSIONS DURING HANDOVER 审中-公开
    在切换期间协调节点B和支持增强的上行链路传输的无线通信方法和设备

    公开(公告)号：WO2005048503A2

    公开(公告)日：2005-05-26

    申请号：PCT/US2004036310

    申请日：2004-10-29

    Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  SHIN SUNG-HYUK ,  TERRY STEPHEN E ,  MILLER JAMES M ,  DICK STEPHEN G

    Inventor： ZHANG GUODONG ,  SHIN SUNG-HYUK ,  TERRY STEPHEN E ,  MILLER JAMES M ,  DICK STEPHEN G

    IPC: H04W36/02 ,  H04W36/08 ,  H04W36/12 ,  H04W36/18 ,  H04W72/14 ,  H04L

    CPC classification number: H04W36/18 ,  H04B7/022 ,  H04L1/1812 ,  H04L1/1887 ,  H04L1/1893 ,  H04W36/30 ,  H04W74/004 ,  H04W74/04 ,  H04W88/08

    Abstract: A wireless communication method and apparatus for coordinating Node-Bs during handover for enhanced uplink (EU) transmission. In one embodiment, a radio network controller (RNC) initiates an inter-Node-B soft handover. A wireless transmit/receive unit (WTRU) establishes communication connections with a plurality of Node-Bs. A particular one of the Node-Bs is designated as being a primary Node-B, and each of other Node-Bs are designated as being a non-primary Node-B. The RNC informs all of the Node-Bs that the particular Node-B is a primary Node-B. The primary Node-B schedules EU transmission and performs ACK/NACK during soft handover. In another embodiment, the RNC initiates a hard handover for a WTRU connected to a source Node-B. The RNC sends an activation timer to the source Node-B to set the time for handover. As many previously negatively acknowledged (NACKed) data packets as possible are prioritized for retransmission in the source Node-B before the activation timer expires.

    Abstract translation: 一种用于在切换期间协调节点B以增强上行链路（EU）传输的无线通信方法和装置。 在一个实施例中，无线电网络控制器（RNC）发起节点间B软切换。 无线发射/接收单元（WTRU）建立与多个节点B的通信连接。 节点B中的特定一个被指定为主节点B，并且其他节点B中的每一个被指定为非主节点B. RNC通知所有的节点B该特定的节点B是主节点B. 主节点B调度EU传输并在软切换期间执行ACK / NACK。 在另一个实施例中，RNC为连接到源节点B的WTRU发起硬切换。 RNC向源节点B发送激活定时器以设置切换时间。 由于在激活定时器到期之前，许多以前否定确认（NACK）的数据分组被优先重新排列在源节点B中。

    DETERMINATION OF CODE TRANSMIT POWER RANGE IN DOWNLINK POWER CONTROL FOR CELLULAR SYSTEMS
    53.
    发明申请
    DETERMINATION OF CODE TRANSMIT POWER RANGE IN DOWNLINK POWER CONTROL FOR CELLULAR SYSTEMS 审中-公开
    确定蜂窝系统的下行电源控制中的代码发送功率范围

    公开(公告)号：WO2004032531A3

    公开(公告)日：2004-09-30

    申请号：PCT/US0331327

    申请日：2003-10-02

    Applicant: INTERDIGITAL TECH CORP

    Inventor： ZHANG GUODONG

    IPC: H04B7/005 ,  H04B7/00 ,  H04B7/212 ,  H04J3/16

    CPC classification number: H04W52/343 ,  H04W52/16 ,  H04W52/367 ,  H04W52/54

    Abstract: A method and apparatus employing algorithms enabling cellular networks to determine the range of code transmit power in downlink, as well as uplink, power control. Two exemplary algorithms provide a determination of an appropriate transmit power range for each code so that when the transmit power of any code approaches an upper limit, the transmit power of the other codes can be adjusted to catch up with the dynamic range. Even though the two exemplary algorithms have functional similarities, in the second algorithm, the frequency of reconfiguration of code transmit power range is much less than the frequency of change of the number of codes. Both algorithms are applicable for use in all modes of transmission in UMTS systems.

    Abstract translation: 一种采用允许蜂窝网络确定下行链路中的码发射功率的范围以及上行链路功率控制的算法的方法和装置。 两个示例性算法提供对每个代码的适当发射功率范围的确定，使得当任何码的发射功率接近上限时，可以调整其他码的发射功率以赶上动态范围。 即使这两个示例性算法具有功能相似性，在第二算法中，代码发送功率范围的重新配置的频率远小于代码数的变化频率。 这两种算法适用于UMTS系统中的所有传输模式。

    METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM
    57.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中执行随机访问的方法和装置

    公开(公告)号：WO2007149290A3

    公开(公告)日：2008-04-03

    申请号：PCT/US2007013913

    申请日：2007-06-14

    Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  PAN KYLE JUNG-LIN ,  TSAI ALLAN YINGMING

    Inventor： ZHANG GUODONG ,  PAN KYLE JUNG-LIN ,  TSAI ALLAN YINGMING

    IPC: H04L27/26 ,  H04L5/02

    CPC classification number: H04L27/2613 ,  H04J3/0602 ,  H04L5/023 ,  H04L27/2662

    Abstract: A method and apparatus for random access in an evolved universal terrestrial radio access (E-UTRA) system are disclosed. For code division multiplexing (CDM), a basic preamble is generated using a constant amplitude zero auto-correlation (CAZAC) sequence. The basic preamble is repeated for M time for generating a random access channel (RACH) preamble. For time division multiplexing/frequency division multiplexing (TDM/FDM), an extended CAZAC sequence is used to generate the basic preamble. Alternatively, a hybrid RACH access period including at least one CDM random access slot and at least one TDM/FDM random access slot may be provided. For synchronized random access, a RACH burst including a preamble part, a message part, and two cyclic prefixes may be generated and transmitted.

    Abstract translation: 公开了一种在演进的通用陆地无线电接入（E-UTRA）系统中随机接入的方法和装置。 对于码分复用（CDM），使用恒幅零自相关（CAZAC）序列生成基本前同步码。 为了生成随机接入信道（RACH）前导码，M个时间重复基本前同步码。 对于时分复用/频分复用（TDM / FDM），使用扩展CAZAC序列来生成基本前同步码。 或者，可以提供包括至少一个CDM随机接入时隙和至少一个TDM / FDM随机接入时隙的混合RACH接入时段。 对于同步随机接入，可以生成并发送包括前导码部分，消息部分和两个循环前缀的RACH脉冲串。

    METHOD AND APPARATUS FOR MAINTAINING UPLINK SYNCHRONIZATION AND REDUCING BATTERY POWER CONSUMPTION
    59.
    发明申请
    METHOD AND APPARATUS FOR MAINTAINING UPLINK SYNCHRONIZATION AND REDUCING BATTERY POWER CONSUMPTION 审中-公开
    保持上行链路同步和降低电池功耗的方法和设备

    公开(公告)号：WO2007111941A2

    公开(公告)日：2007-10-04

    申请号：PCT/US2007007117

    申请日：2007-03-22

    Applicant: INTERDIGITAL TECH CORP ,  WANG JIN ,  CHEN JOHN S ,  SAMMOUR MOHAMMED ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  ZHANG GUODONG

    Inventor： WANG JIN ,  CHEN JOHN S ,  SAMMOUR MOHAMMED ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  ZHANG GUODONG

    IPC: H04W56/00

    CPC classification number: H04W56/0045 ,  H04J11/0069 ,  H04W52/0216 ,  H04W72/0413 ,  H04W92/10 ,  Y02D70/00 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/24

    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.

    Abstract translation: 节点B向无线发射/接收单元（WTRU）发送轮询消息。 WTRU响应于轮询消息发送上行链路同步突发，而没有竞争。 节点B基于同步突发来估计上行链路时移，并向WTRU发送上行链路时序调整命令。 WTRU然后基于上行链路定时调整命令来调整上行链路定时。 备选地，节点B可以向WTRU发送用于上行链路同步的调度消息。 WTRU可以基于调度消息发送同步突发。 或者，WTRU可以在从节点B接收到同步请求之后执行基于竞争的上行链路同步。 WTRU可以进入空闲状态，而不是在WTRU移动到新小区时执行到新小区的切换。 WTRU的不连续接收（DRX）间隔可以基于WTRU的活动来设置。

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