Mobile Station Access Control Reducing Base Station Load
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Solution Overview
Problem
Conventional mobile communication systems face excessive processing load on home-cell-managing radio base stations due to unregistered mobile stations transmitting radio signals, especially in high-traffic areas, as the determination of access permission is made by a network apparatus rather than the radio base station itself.
Innovation Solution
A mobile communication method and system where a mobile station determines whether to transmit a radio signal based on access information managed internally, allowing transmission even if prohibited by broadcast information from the radio base station, by querying the network for access permission when access is not explicitly allowed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the home-cell-managing radio base station transmits broadcast information prohibiting all mobile stations from transmitting radio signals, then the processing load on the radio base station is reduced, but registered mobile stations cannot access the home cell
Solution Approach 1:
The mobile station performs preliminary determination of transmission permission by comparing its own identification information with the access control information before transmitting radio signals. This preliminary action prevents unnecessary transmission attempts by unregistered stations while ensuring registered stations can always transmit, thus reducing processing load without affecting access availability
Solution Approach 2:
The mobile station autonomously determines whether it is permitted to transmit radio signals by using its own identification information and the access control information stored in its memory. This self-service mechanism eliminates the need for the radio base station to process access requests from unregistered stations, reducing its processing load while maintaining proper access control
2Device complexity
If the determination of access permission is made by a network apparatus rather than the radio base station, then the radio base station's functionality is simplified, but the processing load on the radio base station increases due to excessive access requests
Solution Approach 1:
The mobile station performs preliminary determination of transmission permission by comparing its own identification information with the access control information before transmitting radio signals. This preliminary action prevents unnecessary transmission attempts by unregistered stations while ensuring registered stations can always transmit, thus reducing processing load without affecting access availability
Solution Approach 2:
The mobile station autonomously determines whether it is permitted to transmit radio signals by using its own identification information and the access control information stored in its memory. This self-service mechanism eliminates the need for the radio base station to process access requests from unregistered stations, reducing its processing load while maintaining proper access control
Data Source
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AI summary
Provided is a mobile communication method including: a step in which a first radio base station #a transmits broadcast information containing transmission availability information indicating whether a radio signal can be transmitted; and a step which determines whether the radio signal can be transmitted according to the transmission availability information contained in the broadcast information and access information managed in a mobile station #X. The mobile station #X can transmit the radio signal to the first radio base station #a when an access to the first radio base station #a is permitted in the access information even if transmission of the radio signal to the first radio base station #a is restricted by the transmission availability information.