DEVICE AND METHOD FOR CONTROLLING MUTUAL INTERFERENCE OF FEEDBACK LINK AMONG ACCESS TERMINALS IN WIRELESS COMMUNICATION SYSTEM

摘要

1. A method for controlling mutual interference of a reverse link in a sector of a base station (2) of a code division multiple access (CDMA) communication system, characterized in that! for each access terminal (6, 8, 10, 12) from a plurality of access terminals communicating with the base station (2), the spectral noise power density at the base station (2) is determined (50), (i) due to the thermal power spectral density noise and (ii) due to the sum of the energy of the code elements of the selected channels of the access terminals (6, 8, 10, 12), which are controlled by the power sector, thus obtaining a set of specific spectral noise power densities, one specific noise power spectral density for each mentioned access terminal (6, 8, 10, 12) from a plurality of access terminals communicating with a base station (2),! determine (52) the maximum effective spectral density of the noise power among the set of determined spectral densities of the noise power and! control (54) the power of the reverse link of one or more access terminals (6, 8, 10, 12), which are sector-controlled by power, based on the maximum effective spectral density of the noise power. ! 2. The method according to claim 1, further characterized in that at the stage of determining the spectral density of noise power for each of the access terminals! determine the spectral density of the total received power in the base station and! subtract from the spectral density of the total received power the energy of the code elements obtained from the selected channels of the access terminals, which are controlled by the power