Reverse link controlling method in a mobile communication system

Abstract

A reverse link controlling method in a mobile communication system. To increase or decrease a reverse data rate, an MS receives threshold power information indicating a power threshold for a pilot channel from the BS and measures the reception power of the pilot channel received from the BS. When the MS is supposed to increase or decrease the current data rate, it increases the current data rate by two levels or decreases the current data rate by one level if the pilot reception power is higher than the power threshold, and increases the current data rate by one level or decreases the current data rate by two levels if the pilot reception power is equal to lower than the power threshold.

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       6 . A reverse data rate controlling method in a base station (BS) in a mobile communication system where a predetermined number of reverse data rates are available to each of a plurality of mobile stations (MSs) within the service area of the BS, the method comprising the steps of: 
 detecting reverse rate indicators (RRIs) from MSs;    setting a reverse activity bit (RAB) based on the load of a reverse link and remaining reverse link capacity; and    transmitting the RAB to the MSs.    
   
   
       7 . The method of  claim 6 , wherein the RAB is broadcast to the MSs.  
   
   
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       15 . A reverse data rate changing apparatus in a base station (BS) in a mobile communication system where a predetermined number of reverse data rates are available to each of a plurality of mobile stations (MSs) within the service area of the BS, the apparatus comprising: 
 a control signal detector for detecting RRIs (Reverse Rate Indicators) from MSs;    a reverse link capacity measurer for measuring the current capacity of a reverse link;    a controller for setting access probabilities for changing reverse data rates for the MSs when the BS is initially connected to the MSs, and setting a reverse activity bit (RAB) based on the load of the reverse link and the remaining reverse link capacity; and    a control signal transmitter for transmitting the RAB to the MSs.    
   
   
       16 . The apparatus of  claim 15 , wherein the access probabilities include a first access probability and a second access probability that are used according to a forward pilot power measured in an MS.