Patent ID: 6205337
Filing Date: 2001-03-20
Classification: H01Q,H04L,H04W

Abstract:
A method of optimizing frequency re-use within a cell of a cellular wireless communications system, said cell having a base station with a sectored antenna dividing the cell into four sectors, the sectored antenna transmitting point to multipoint communications to customer premise equipment (CPE) at sites within said sectors, each CPE having a directional antenna for receiving communications from said sectored antenna and for transmitting point to point communications to said base station, the method comprising:providing polarization means at said base station whereby said sectored antenna transmits and receives orthogonally polarized radiation;providing polarization means at said CPE directional antennas for receiving and transmitting orthogonally polarized radiation said CPE directional antenna having a cross polarization rejection ratio in the order of 20 to 40 dB; andemploying orthogonally polarized radiation between adjacent sectors, said radiation between adjacent sectors having a common carrier frequency.