Dynamic Simulcasting Controller for Distributed Antenna Systems
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Solution Overview
Problem
Conventional wireless communication systems face challenges in maximizing signal reliability and throughput, particularly in distributed antenna systems, where the full potential of simulcasting and de-simulcasting is not fully exploited, leading to suboptimal signal-to-interference and noise ratios (SINR) and network capacity.
Innovation Solution
The implementation of a base station with a simulcast controller module that dynamically adjusts the groups of remote antenna units for simulcasting and de-simulcasting based on network traffic parameters, allowing for different simulcasting configurations for each carrier to improve SINR and network throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simulcasting is employed with fixed remote antenna unit groups, then signal reliability is improved, but network throughput and capacity are limited
Solution Approach 1:
The patent implements dynamic simulcasting where the controller continuously monitors network traffic parameters and dynamically reconfigures which remote antenna units form simulcasting groups. This allows the system to adapt between simulcasting mode (for reliability) and non-simulcasting mode (for throughput) based on real-time conditions, resolving the contradiction between fixed reliability improvement and limited productivity
Solution Approach 2:
The system changes operational parameters by adjusting the simulcasting configuration based on network traffic conditions. When traffic demands high reliability, simulcasting is activated with specific antenna unit groups; when throughput is prioritized, the configuration changes to reduce or eliminate simulcasting, thereby optimizing the balance between reliability and productivity
2Reliability
If simulcasting is used to improve SINR, then signal quality is enhanced, but network capacity and resource utilization are reduced
Solution Approach 1:
The controller dynamically adjusts simulcasting configurations based on real-time network traffic parameters, activating simulcasting only when SINR improvement is needed and deactivating it when network capacity is the priority, thus resolving the contradiction between signal quality and network capacity
Solution Approach 2:
The patent applies simulcasting selectively to specific remote antenna unit groups based on local network conditions and traffic parameters rather than uniformly across all antenna units, optimizing SINR improvement while minimizing impact on overall network capacity
3Area of stationary object
If remote antenna units are strategically positioned for coverage, then area coverage is maximized, but simulcasting potential is underutilized
Solution Approach 1:
The controller continuously monitors network traffic parameters and provides feedback to dynamically reconfigure simulcasting groups, enabling the system to fully utilize the strategic positioning of remote antenna units for both coverage and simulcasting purposes based on real-time conditions
Solution Approach 2:
The patent makes the remote antenna units multi-functional by enabling them to serve both coverage purposes through strategic positioning and simulcasting purposes through dynamic group formation, maximizing the utility of each antenna unit's location
Data Source
AI summary
Base stations may include a plurality of antenna ports adapted to communicatively couple to respective remote antenna units. A base station simulcast controller module may be coupled with each antenna port, and may be adapted to transmit downlink transmissions over a plurality of remote antenna units, with two or more of the remote antenna units simulcasting downlink transmissions as a simulcasting group. In response to one or more obtained network traffic parameters, the base station simulcast controller module may modify the simulcasting group to include at least one different remote antenna unit. Methods operational on base station may include transmitting downlink transmissions over a plurality of remote antenna units, where two or more of the remote antenna units form a simulcasting group. The simulcasting group can be modified to include at least one different remote antenna unit in response to one or more obtained network traffic parameters.