Base Station Control Device for WiMAX Access Optimization
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Solution Overview
Problem
WiMAX network access procedures fail due to the inability of the access service network (ASN) to hand over terminals to another base station with sufficient radio resources, leading to line shortages and inefficient distribution of terminals among base stations, especially when multiple base stations manage the same coverage area.
Innovation Solution
A connection network and radio communication control method that determine an access point base station based on resource information from multiple radio base stations, allowing terminals to switch to a base station with more available resources during the access procedure, thereby reducing network access failures and optimizing radio resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal itself selects a base station to connect, then the network access procedure can be initiated, but the access may fail due to insufficient radio resources at the selected base station
Solution Approach 1:
The base station control device collects resource information from multiple base stations and provides feedback to the terminal through a list of candidate base stations with their resource statuses. This enables the terminal to make informed decisions about base station selection, improving access success rate while maintaining terminal autonomy.
Solution Approach 2:
The base station control device acts as an intermediary between terminals and base stations. It manages resource information, determines appropriate access point base stations, and guides terminals to suitable base stations, thereby improving network access reliability without eliminating terminal selection capability.
2Reliability
If the access service network cannot hand over the terminal to another base station, then the network access procedure fails, but adding handover capability increases network complexity
Solution Approach 1:
The base station control device extracts the base station selection and resource management functions from the access service network. By centralizing these functions in a dedicated control device, the access service network's complexity is reduced while maintaining the ability to guide terminals to appropriate base stations.
Solution Approach 2:
The base station control device performs preliminary actions by pre-collecting resource information from multiple base stations and preparing a list of candidate base stations before terminals attempt access. This advance preparation enables successful access without requiring complex real-time handover capabilities in the access service network.
3Productivity
If multiple base stations manage the same coverage area, then radio resource utilization can be optimized, but terminals cannot be efficiently distributed among base stations without handover capability
Solution Approach 1:
The base station control device continuously collects resource information from multiple base stations managing the same coverage area and provides feedback to terminals through candidate lists. This enables terminals to be distributed across base stations based on real-time resource availability, optimizing utilization while maintaining reliable access.
Solution Approach 2:
The system changes the parameter of base station selection by providing terminals with information about multiple candidate base stations and their resource states. Terminals can then select different base stations based on resource parameters, achieving efficient distribution and utilization without requiring handover mechanisms.
4Ease of operation
If time zones are previously set for terminal connection, then base station connection can be managed, but considerable effort is required to complete the setup
Solution Approach 1:
The base station control device automatically collects resource information from base stations and dynamically generates candidate base station lists without requiring manual time zone configuration. The system serves itself by autonomously managing resource tracking and terminal guidance, eliminating lengthy setup procedures while maintaining connection management capability.
Data Source
AI summary
When an access process request signal for access to a connection network, from a terminal which exists in the same coverage area shared by a plurality of radio base stations, is received by one of the radio base stations, an access point base station is determined according to the resource information of the radio base stations by the connection network so as to transmit to the terminal, an access process base station modification request signal which requests that the access process request signal be transmitted to the radio base station that serves as the determined access point base station.