Multi-frequency pilot beacon for CDMA systems

A method for handing-off a transceiver operating at a first CDMA carrier frequency F1 to either a second CDMA carrier frequency F2 or a third CDMA carrier frequency F3, said method comprising the following steps:

• a) generating a plurality of pseudorandom noise sequences, each of said plurality of sequences PNX having a unique offset associated with it;
• b) converting a first number of said pseudorandom noise sequences to a first pilot beacon centered at said first CDMA carrier frequency F1, a second number of said pseudorandom noise sequences to a second pilot beacon centered at said second CDMA carrier frequency F2, and a third number of said pseudorandom noise sequences to a third pilot beacon centered at said third CDMA carrier frequency;
• and
• c) transmitting said first, second and third pilot beacons to said transceiver;
• and
• d) using said first, second and third pilot beacons for determining a hand-off decision between said first CDMA carrier frequency F1 and either said second CDMA carrier frequency F2 or said third CDMA carrier frequency F3 based on said pseudorandom noise offsets detected and reported by said transceiver.

A CDMA system with hand-off of a transceiver operating at a first CDMA carrier frequency F1 to either a second CDMA carrier frequency F2 or a third CDMA carrier frequency F3, said CDMA system comprising:

• a) a multi-frequency pilot beacon comprising:
• i.) a pseudorandom noise generator for supplying a plurality of pseudorandom noise sequences, each of said plurality of sequences having a unique offset associated with it;
• ii.) a transmitting means for transmitting said plurality of noise sequences to said transceiver;
• a) a CDMA system controller which issues a hand-off decision from said first CDMA carrier frequency F1 to either said second CDMA carrier frequency F2 or said third CDMA carrier frequency F3 based on said pseudorandom noise offsets detected and reported by said transceiver.

A method for handing-off a transceiver operating at a first CDMA carrier frequency F1 to either a second CDMA carrier frequency F2 or a third CDMA carrier frequency F3, said method comprising the following steps:

• a) generating a plurality of pseudorandom noise sequences, each of said plurality of sequences having a unique offset associated with it;
• b) transmitting said plurality of pseudorandom noise sequences to said transceiver;
• and
• c) using said plurality of pseudorandom noise sequences for issuing a hand-off decision between said first CDMA carrier frequency F1 and either said second CDMA carrier frequency F2 or said third CDMA carrier frequency F3 based on said pseudorandom noise offsets detected and reported by said transceiver.