Master-Slave Network Coordination for Interference Management
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Solution Overview
Problem
Existing solutions for inter-network resource coordination in millimeter-wave (MMW) networks are inefficient due to high overhead and inability to effectively manage interference between adjacent networks sharing the same spectrum, leading to suboptimal spectrum utilization and reduced peak data rates.
Innovation Solution
The proposed solution involves determining network-wide blanking patterns for each operating network, which specifies which resource blocks are not allowed to be scheduled and which are schedulable, reducing inter-network interference while minimizing the amount of information exchanged between networks, and ensuring fairness in resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If inter-network resource coordination is implemented in MMW networks, then interference between adjacent networks is reduced, but coordination overhead increases
Solution Approach 1:
The patent segments the coordination problem by introducing a master network and slave networks architecture. The master network performs centralized coordination for multiple slave networks, dividing the coordination task into hierarchical levels. This reduces overall coordination overhead by consolidating signaling through the master network rather than requiring pairwise coordination between all networks.
Solution Approach 2:
The master network acts as an intermediary between slave networks, mediating resource coordination. Instead of direct coordination between all adjacent networks, the master network receives coordination information from slave networks and distributes coordinated resource allocations, reducing the total amount of coordination signaling required.
2Productivity
If spectrum is shared between adjacent MMW networks, then spectrum utilization is maximized, but interference between networks increases
Solution Approach 1:
The patent changes the parameter of resource allocation by introducing time-varying resource patterns where networks alternate between transmitting and blanking states. This allows full spectrum sharing while managing interference through temporal separation, with the master network coordinating blanking patterns across slave networks to ensure interference-free operation during active transmission periods.
3Productivity
If centralized coordination is implemented with a master network, then coordination efficiency is improved, but system complexity increases
Solution Approach 1:
The patent merges coordination functions into a centralized master network that handles resource allocation for multiple slave networks. This consolidation improves coordination efficiency by eliminating redundant signaling and enabling global optimization, while the standardized interface between master and slave networks keeps implementation complexity manageable.
Data Source
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AI summary
Various embodiments of the present disclosure provide a method for coordinating resources between different operating networks. The method comprises determining (510) whether coordination with a second operating network is triggered and transmitting (520) a coordination request to the second operating network, in response to determining (510) that the coordination is triggered. The method also comprises receiving (530) a coordination response from the second operating network. The method further comprises determining (540) blanking patterns by initiating a coordination procedure between the first and second operating networks to, in response to receiving an acknowledgement in the coordination response from the second operating network; and scheduling (550) according to one of the determined blanking patterns in the first operating network.