MOBILE COMMUNICATION SYSTEM
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United States of America Patent
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Issued Date -
Feb 29, 2024
app pub date -
Nov 9, 2023
filing date -
Nov 4, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A closed subscriber group (CSG) cell allows use of subscribers. To receive the service by the CSG cell, a CSG-ID is notified to a user equipment, but cannot be obtained outside the reach of radio waves from a non-CSG cell. Base stations respectively provided to a CSG cell and a non-CSG cell, and access is made to the CSG cell with the use of a CSG-ID issued when use of the CSG cell is allowed, the base station refers to the notified identification information of a user equipment and then transmits a tracking area update request from the user equipment to a core network. The core network determines whether the user equipment is allowed to use the CSG cell and, if allowed, transmits a signal for assignment of radio resources to the user equipment and the CSG-ID. The user equipment accesses the CSG cell with the CSG-ID.
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