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    • 51. 发明申请
    • METHOD AND APPARATUS FOR IMPLEMENTING A DATA LIFESPAN TIMER FOR ENHANCED DEDICATED CHANNEL TRANSMISSIONS
    • 实现增强专用信道传输的数据生命周期定时器的方法和装置
    • WO2005112327A2
    • 2005-11-24
    • PCT/US2005/015476
    • 2005-04-29
    • INTERDIGITAL TECHNOLOGY CORPORATIONZHANG, GuodongTERRY, Stephen, E.
    • ZHANG, GuodongTERRY, Stephen, E.
    • H04L1/00
    • H04L1/1883H04L1/1607H04L1/1812H04L1/1877
    • A wireless communication system, which supports enhanced dedicated channel (E-DCH) data transmissions, includes a wireless transmit/receive unit (WTRU), at least one Node-B and a radio network controller (RNC). The WTRU includes a buffer, a data lifespan timer, a data retransmission counter, a hybrid-automatic repeat request (H-ARQ) process and a controller. The timer establishes a lifespan for at least one data block stored in the buffer. If physical resources have not been allocated for a data block associated with a lifespan timer that is close to expiration, the WTRU sends an urgent channel allocation request. If physical resources have been allocated, the data block is prioritized for transmission with respect to other data blocks. The data block is discarded if the lifespan timer expires or if the WTRU receives feedback information indicating that the data block was successfully received by the Node-B.
    • 支持增强专用信道(E-DCH)数据传输的无线通信系统包括无线发射/接收单元(WTRU),至少一个节点B和无线电网络控制器(RNC)。 WTRU包括缓冲器,数据寿命定时器,数据重传计数器,混合自动重传请求(H-ARQ)处理和控制器。 定时器为存储在缓冲器中的至少一个数据块建立寿命。 如果物理资源尚未被分配给与寿命定时器相关联的数据块,该寿命定时器接近到期,则WTRU发送紧急信道分配请求。 如果已经分配了物理资源,则数据块优先于相对于其他数据块的传输。 如果寿命定时器到期或者WTRU接收到指示数据块被节点B成功接收的反馈信息,则丢弃该数据块。