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    • 8. 发明申请
    • METHOD AND APPARATUS FOR IMPLEMENTING TRACKING AREA UPDATE AND CELL RESELECTION IN A LONG TERM EVOLUTION SYSTEM
    • 在长期演进系统中实现跟踪区域更新和细胞测量的方法和装置
    • US20080102896A1
    • 2008-05-01
    • US11923033
    • 2007-10-24
    • Peter WangJames MillerUlises Olvera-Hernandez
    • Peter WangJames MillerUlises Olvera-Hernandez
    • H04B1/38
    • H04W36/34H04W8/18H04W60/04
    • The invention performs long term evolution (LTE) tracking area updates (TAUs), and tracking area code (TAC) and public land mobile network identification (PLMN-ID) assisted optimized wireless transmit/receive unit (WTRU) cell reselection. An evolved Node-B broadcasts system information including at least one system information block (SIB) based at least in part on an enhanced universal terrestrial radio access network (E-UTRAN) parameter response message sent by an evolved packet core (EPC) network. A WTRU generates a new TAC, which represents a tracking area identification (TA-ID) of a new cell, based on the system information, and compares the new TAC to an existing TAC, which represents a TA-ID of a previous cell. The WTRU transmits to the EPC network a TAU request message including the TA-ID of the new cell. The EPC network sends either a TAU accept message or a TAU reject message to the WTRU.
    • 本发明执行长期演进(LTE)跟踪区域更新(TAU)和跟踪区域代码(TAC)和公共陆地移动网络标识(PLMN-ID)辅助的优化无线发射/接收单元(WTRU)小区重选。 至少部分地基于由演进分组核心(EPC)网络发送的增强型通用陆地无线电接入网络(E-UTRAN)参数响应消息,演进节点B广播包括至少一个系统信息块(SIB)的系统信息。 WTRU基于系统信息生成新的TAC,其表示新小区的跟踪区域标识(TA-ID),并将新的TAC与现有的TAC进行比较,该TAC表示前一小区的TA-ID。 WTRU向EPC网络发送包括新小区的TA-ID的TAU请求消息。 EPC网络向WTRU发送TAU接受消息或TAU拒绝消息。