| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and apparatus which performs tracking area update and cell reselection in a long term evolution system. <P>SOLUTION: The present invention performs long term evolution (LTE) tracking area updates (TAUs), and tracking area code (TAC) and public land mobile network identification (PLMN-ID) assisted 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 transmitted by an evolved packet core (EPC) network. The 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 with 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 transmits either a TAU acceptance message or a TAU rejection message to the WTRU. <P>COPYRIGHT: (C)2013,JPO&INPIT |
