Radio Resource Scheduling for CoMP Cellular Networks
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Solution Overview
Problem
Existing radio resource allocation methods in cellular networks with CoMP functionality are complex and require high computational capabilities, leading to inefficient and time-consuming processes.
Innovation Solution
A scheduling procedure that continuously updates radio resources for serving and cooperative network nodes based on overall data exchange performance, using a scheduler unit to select and allocate resources dynamically, optimizing resource allocation for improved network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If complex radio resource allocation methods are used to achieve optimal resource distribution in CoMP networks, then resource allocation performance is improved, but computational complexity and processing time increase significantly
Solution Approach 1:
The patent segments the radio resource allocation process into distinct phases: determining initial resource fractions for serving and cooperative nodes, evaluating data exchange performance, and updating allocations based on performance metrics. This segmentation allows each phase to be handled independently with appropriate computational complexity, avoiding the need for continuously complex optimization while maintaining overall allocation efficiency.
Solution Approach 2:
The patent implements a feedback mechanism where data exchange performance between user equipment and network nodes is continuously evaluated, and this performance information is used to update the fraction of radio resources allocated to serving and cooperative nodes. This closed-loop approach enables the system to adapt to changing conditions without requiring complex real-time optimization, as the feedback guides resource adjustments based on actual performance outcomes.
2Reliability
If continuous performance-based updates of radio resource allocation are implemented, then data exchange performance is improved, but processing time and computational load increase
Solution Approach 1:
The patent employs periodic updates of radio resource allocations based on evaluated data exchange performance rather than continuous real-time adjustments. The system determines fractions of radio resources at specific intervals and updates these allocations based on performance evaluations conducted over defined periods. This periodic approach maintains reliable data exchange performance while avoiding the excessive processing time and computational load that would result from continuous optimization.
Data Source
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AI summary
A method (200) is proposed for scheduling allocation of radio resources in a cellular network (100). The method (200) comprises: selecting (205) at least one first user equipment for performing a first type data exchange based on Coordinated Multi-Point technique and a second type data exchange not based on Coordinated Multi-Point technique, and selecting (205) at least one second user equipment for performing only said second type data exchange; selecting (205) at least one network node for performing said first type data exchange with the at least one first user equipment and said second type data exchange with at least one among said first and second user equipment; determining (210), for the at least one network node, a radio resource parameter indicative of a number of radio resources to be allocated for the first type data exchange and of a number of radio resources to be allocated for the second type data exchange; allocating (215) the radio resources for the at least one network node based on said radio resource parameter; causing data exchange to/from each first and second user equipment; determining (220-230) first and second performance parameters indicative of performance of the data exchange to/from, respectively, the at least one first user equipment and the at least one second user equipment; updating (235) said radio resource parameter according to the first and second performance parameters, and repeating said allocating (215).