Interface Aggregation for Heterogeneous Wireless Systems
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Solution Overview
Problem
Heterogeneous wireless communication systems face limitations in traffic capacity and spectral efficiency due to the need for small cells to operate outside an exclusion zone around macrocells, restricting the deployment of small cells and their capacity scaling.
Innovation Solution
Implementing interface aggregation methods where user equipment selects and configures a subset of interfaces based on channel capacities, both its own and those of other user equipment, to aggregate bandwidth, managed by a policy server that optimizes interface selection for reduced latency and increased throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If small cells are deployed outside the exclusion zone around macrocells to avoid interference, then intercellular interference is reduced, but the total traffic capacity and spectral efficiency are limited due to restricted deployment locations
Solution Approach 1:
The patent combines multiple wireless interfaces (licensed and unlicensed bands) into an aggregated communication system, merging their capacities to achieve higher total traffic capacity while maintaining deployment flexibility outside exclusion zones
2Ease of operation
If multiple wireless interfaces are used in an 'either-or' configuration, then interface simplicity is maintained, but the throughput is limited to the capacity of individual interfaces
Solution Approach 1:
The patent merges multiple wireless interfaces (3G, 4G, Wi-Fi) into an aggregated connection that combines their throughput capacities, transforming the either-or configuration into a simultaneous multi-interface system that achieves multi-gigabit per second throughput
Data Source
AI summary
First user equipment transmits information identifying first interfaces supported by the first user equipment and first channel capacities associated with the first interfaces. The first user equipment receives information identifying a subset of the first interfaces. The subset is selected based on the first channel capacities and second channel capacities of second interfaces associated with at least one second user equipment. The first user equipment is then configured to aggregate the subset of the first interfaces. A policy server selects a subset of first interfaces supported by a first user equipment based on information indicating first channel capacities of the first interfaces and second channel capacities of second interfaces associated with at least one second user equipment. The policy server transmits instructions to the first user equipment to aggregate the subset.