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US 9,313,699 B2Granted
Method for handover from home cell to public cell in mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsHye-Jeong Kim, Yang-Ick Joo
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Abstract
A method for a connection mode terminal to hand over between a home cell and a public cell in a mobile communication system is provided. In the mobile communication system including the home cell and the public cell, a region of the terminal is determined and a random access channel for the handover is pre-allocated. When the normal handover from the home cell to the public cell fails, the access to the public cell is accomplished using the pre-allocated random access channel. Therefore, the handover failure rate can be lowered.
Claims8
A method for a user terminal to determine a region in a mobile communication
- system which comprises a home cell and a public cell, the method comprising:
- measuring, by the user terminal, a home cell signal and public cell signals during a measurement period;
- setting a public cell having the greatest signal among signals measured in the public cells, as a max cell at the user terminal;
- determining, by the user terminal, that the user terminal is located in a first region when the measured home cell signal is greater than a first threshold and greater than the max cell signal by more than a second threshold;
- and
- determining, by the user terminal, that the user terminal is located in a second region when the measured home cell signal is less than the first threshold and the max cell signal is greater than a third threshold.
3 more elements
Dependencies are inferred from the claim text.