A code division multiple access system provides a way of allocating an increased data rate to a requesting mobile station. A mobile stati on requesting a data rate in excess of the basic data rate sends received pilot strength data for its base station and base stations in adjacent cells. The received pilot strength data is used to determine an increased data rate to be assigned to the requesting mobile station. One feature assigns an increased data rate when the received pilot strength data has a predetermined relationship to a n established threshold. Another feature utilizes a series of threshold levels, ea ch pair of levels associated with a different permitted data rate. Using the receiv ed pilot strength data, a data rate is determined which satisfies all adjacent cell interference concerns. Another feature uses average adjacent cell capacity loads rather than threshold levels, together with the received pilot strength data, to determine the appropriate increased data rate to be assigned to a user requestin g an increased data rate.

Title
Systeme a acces multiple par difference de code offrant la possibilite daugmenter le debit de transmission des donnees en reponse a une demande emanant dune station mobile
Code division multiple access system providing load and interference based demand assignment service to users
Publication Number
2184772
Application Date
September 4, 1996
Publication Date
December 14, 1999
Inventor
Nanda Sanjiv
I Chih Lin
Agent
KIRBY EADES GALE BAKER
Assignee
At&T
IPC
H04Q 07/38
H04B 07/216
H04B 01/707
H04Q 07/36
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