METHOD AND APPARATUS FOR SELECTING NEIGHBOR CELLS IN MOBILE COMMUNICATION SYSTEM

摘要

A neighbor cell search method and apparatus of a User Equipment (UE) is provided for performing the cell search procedure with the utilization of a Physical Cell Identity (PCI) list of PCIs used by evolved Node Bs (eNBs) for a Closed Subscriber Group (CSG) which is from an eNB in a Long Term Evolution (LTE) system. The cell search method includes selecting a cell of a base station, receiving system information including a Physical Cell Identity (PCI) list used by neighbor Closed Subscribed Group (CSG) cells of the base station, determining whether the terminal is in an any cell selection state for selecting any cell, and searching, when the terminal is in the any cell selection state, neighbor cells without application of the PCI list. The cell search method and apparatus are capable of performing the cell search procedure to appropriate eNBs, resulting in improvement of network attachment efficiency.

主权项

1. A method of a terminal in a mobile communication system, the method comprising:
receiving, from a base station, system information including a set of physical cell identities reserved for closed subscriber group (CSG) cells; starting a timer since the system information is received; determining whether the terminal is in an any cell selection state; and selecting a cell among a plurality of cells without applying the set of physical cell identities reserved for the CSG cells if the terminal is in the any cell selection state and the timer is running.