Hand-off method and apparatus in CDMA cellular system

Details Hand-off method and apparatus in CDMA cellular system Hand-off method and apparatus in CDMA cellular system

1997-09-25

2000-08-29

Patel, Ajit

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370335, 370342, 455437, H04Q 700

Patent

active

061118648

ABSTRACT:
In a hand-off method in a CDMA cellular system, whether a frequency in use is a frequency layer boundary is determined in response to a notification indicating a deterioration in the frequency in use from a mobile unit. A frequency prepared in both a communication cell and an adjacent cell is selected when the frequency in use is the frequency layer boundary. Inter-frequency hand-off is executed in the communication cell by using the selected frequency. Inter-cell hand-off is executed in response to a notification indicating a destination cell from the mobile unit, which is based on a pilot signal strength measurement result from the adjacent cell.

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