Method and apparatus for selecting neighbor cells in mobile communication system
First Claim
1. A method of a terminal in a wireless communication system, the method comprising:
- receiving first system information including public land mobile network (PLMN) information;
receiving second system information including closed subscriber group (CSG) cell information;
determining whether a PLMN identity is changed based on the PLMN information; and
selecting a cell among a plurality of cells including a CSG cell based on the CSG cell information if the PLMN identity is not changed and before a predetermined time duration has elapsed.
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Abstract
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.
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Citations
14 Claims
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1. A method of a terminal in a wireless communication system, the method comprising:
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receiving first system information including public land mobile network (PLMN) information; receiving second system information including closed subscriber group (CSG) cell information; determining whether a PLMN identity is changed based on the PLMN information; and selecting a cell among a plurality of cells including a CSG cell based on the CSG cell information if the PLMN identity is not changed and before a predetermined time duration has elapsed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A terminal in a wireless communication system, the terminal comprising:
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a transceiver to transmit and receive signals; and a controller configured to; control to receive first system information including public land mobile network (PLMN) information, control to receive second system information including closed subscriber group (CSG) cell information, determine whether a PLMN identity is changed based on the PLMN information, and select a cell among a plurality of cells including a CSG cell based on the CSG cell information if the PLMN identity is not changed and before a predetermined time duration has elapsed. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification