Channel assignment method for multi-FA CDMA cellular systems
First Claim
1. A channel assignment method for multi-FA (Frequency Assignment) CDMA cellular systems in which a base station communicates a plurality of mobile stations, comprising the steps of:
- comparing a first threshold value with variance of received power when the base station receives a new call request;
assigning a traffic channel in a first FA of the request, if the variance of received power is less than the first threshold value, and searching a second FA of which variance of received power is least, if not;
comparing a second threshold value with the variance of received power; and
assigning a traffic channel in the second FA if the variance of received power is less than the second threshold value, and rejecting the request, if not.
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Abstract
A method for assigning a channel in multi-FA CDMA mobile communication system according to the received power prevents communication quality of a FA from being inferior to that of the others by managing the interference level of the FA. The method comprises the steps of: comparing a first threshold value with received power when the base station receives a new call request; assigning a traffic channel in a first FA of the request, if the received power is less than the first threshold value, and searching a second FA of which received power is least, if not; comparing a second threshold value with the received power of the second FA; and assigning a traffic channel in the second FA if the received power is less than the second threshold value, and rejecting the request, if not.
23 Citations
4 Claims
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1. A channel assignment method for multi-FA (Frequency Assignment) CDMA cellular systems in which a base station communicates a plurality of mobile stations, comprising the steps of:
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comparing a first threshold value with variance of received power when the base station receives a new call request; assigning a traffic channel in a first FA of the request, if the variance of received power is less than the first threshold value, and searching a second FA of which variance of received power is least, if not; comparing a second threshold value with the variance of received power; and assigning a traffic channel in the second FA if the variance of received power is less than the second threshold value, and rejecting the request, if not. - View Dependent Claims (2)
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3. A channel assignment method for multi-FA (Frequency Assignment) CDMA cellular systems in which a base station communicates a plurality of mobile stations, comprising the steps of:
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comparing a first threshold value with standard deviation of received power when the base station receives a new call request; assigning a traffic channel in a first FA of the request, if the standard variance of received power is less than the first threshold value, and searching a second FA of which standard deviation of received power is least, if not; comparing a second threshold value with standard deviation of received power; and assigning a traffic channel in a second FA if the standard deviation is less than the second threshold value, and rejecting the request, if not. - View Dependent Claims (4)
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Specification