Uplink Broadcast for Private Base Station Resource Management
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Solution Overview
Problem
In mobile communication networks, especially those employing private base stations co-existing with public base stations, there is a challenge in optimizing radio resource management to prevent interference and ensure adequate coverage and capacity, particularly in areas where public base stations may leave gaps in service.
Innovation Solution
The solution involves a method where user terminals broadcast information about allocated radio resources, allowing private base stations to update their allocation tables and avoid allocating the same resources used by nearby public base stations, thereby minimizing interference and optimizing resource use within their coverage areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If private base stations are deployed to extend coverage and increase capacity in areas with limited public base station coverage, then network capacity and coverage are improved, but interference between private and public base station communications occurs due to spectrum allocation conflicts
Solution Approach 1:
User terminals broadcast information about allocated radio resources, creating a feedback mechanism that allows private base stations to detect and avoid allocating resources that are already in use by public base stations, thereby preventing interference while maintaining high network capacity
Solution Approach 2:
The user terminal acts as an intermediary that relays radio resource allocation information from the public base station to the private base station through broadcasting, enabling indirect coordination and resource conflict avoidance without direct base station-to-base station communication
2Device complexity
If private base stations operate autonomously without coordination with public base stations, then device complexity and coordination overhead are reduced, but radio resource management becomes difficult due to lack of information about allocated resources
Solution Approach 1:
Private base stations autonomously acquire resource allocation information by monitoring broadcasts from user terminals, eliminating the need for complex coordination mechanisms with public base stations while maintaining complete awareness of allocated resources through self-service information gathering
Data Source
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AI summary
There is provided a solution for reusing radio resources opportunistically by private base stations to increase the overall capacity of the network. The solution is based on applying an uplink broadcast in a mobile communication, in which information representing a radio resource allocated by a base station to a user terminal is broadcasted.