We propose Circle Location Register (CLR) scheme to solve Home Location Register (HLR) bottleneck problem and terminals Ping-pong effect in Mobile Networks (MN). Each Visiting Location Register (VLR) has a given fixed circle Registration Area (RA) around itself and has IDs of other VLRs in this circle area. Whenever a terminal moves to another RA, system computes whether the terminal is located in the current CLR area, and sends the recent location information of terminal to the old or new CLR according to computing results. The proposed scheme reduces to location traffic cost compared with IS-41scheme.
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