| 1. For use in a code division multiple access (CDMA) base station capable of communicating with mobile stations using an adaptive
antenna array, an apparatus for allocating orthogonal codes to said mobile stations comprising:
a database for storing R records, each of said R records associated with an active mobile station and comprising: 1) an active
orthogonal code associated with said active mobile station; 2) corresponding downlink beamforming coefficients associated
with said active mobile station, and 3) mobility information associated with said active mobile station; and
a controller for comparing estimated downlink beamforming coefficients associated with a new mobile station to said R records
and, in response to said comparison, selecting a first active orthogonal code associated with a first active mobile station
to communicate with said new mobile station, wherein said selection is based on: 1) an amount of correlation between said
estimated downlink beamforming coefficients associated with said new mobile station and first corresponding downlink beamforming
coefficients associated with said first active mobile station, and 2) said mobility information associated with said first
active mobile station.
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