H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 52/50 (2009.01) H04B 7/216 (2006.01)
Patent
CA 2413950
A subscriber terminal using a method of controlling initial power ramp-up in CDMA systems by using short codes is disclosed. The subscriber terminal includes having its transmission power regulated, with means for transmitting a periodic signal at an initial predetermined power level and repeatedly retransmitting the periodic signal each retransmission occurring at successively higher power levels, means for receiving a confirmation signal, and means for terminating transmission of the periodic signal in response to the received confirmation and transmitting a call signal which provide for a base station to quickly synchronize to the spreading code used by the subscriber unit. The subscriber terminal using a method of controlling initial power ramp-up in CDMA systems by using short codes is particularly useful for overcoming the problems of power overshoot and interference to other subscriber stations known in the art.
Haim John W.
Lomp Gary R.
Ozluturk Fatih M.
Interdigital Technology Corporation
Ridout & Maybee Llp
LandOfFree
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