| 摘要 |
PCT No. PCT/FR95/01407 Sec. 371 Date Apr. 24, 1997 Sec. 102(e) Date Apr. 24, 1997 PCT Filed Oct. 24, 1995 PCT Pub. No. WO96/13953 PCT Pub. Date May 9, 1996The safe method of handing over a call set up with a mobile station (M) comprise the following cyclic steps: a following base station (B(n)) receives (ET3) UP data (DM) of the call in a following channel (CH2), which UP data is transmitted by the mobile station (M) in a current channel (CH1) to a current base station; the DOWN data of the call is transmitted (ET5) for a given duration (T) simultaneously both over said current channel (CH1) and over said following channel (CH2), from the current base station (B(n-1)) and from the following base station (B(n)) respectively as soon (ET4) as the propagation time difference (TA) between the respective instants at which said UP data is received by said current channel (CH1) and by said following channel (CH2) is less than a first predetermined threshold (S); and on expiry of said given duration (T), releasing (ET6, LIB) said call in said current channel, and validating said call in the following channel (CH2) as a new current channel.
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