Controller Time Delay Coordination Base Stations
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Solution Overview
Problem
In communication networks, particularly LTE networks, there is a need for a simple method to reduce data rates of communication devices when higher data rates are not supported or when data rate guidelines are exceeded, ensuring efficient resource control and load distribution between base stations.
Innovation Solution
Introducing a controller that adjusts the time delay between X2 interfaces of base stations to decrease data rates, allowing base stations to desynchronize and thereby reducing the cumulative data rate of communication devices, which can be implemented using CoMP technology and MIMO communication methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations coordinate quickly via control interfaces to maintain high data rates, then communication efficiency is improved, but data rate reduction capability is lost
Solution Approach 1:
The patent implements dynamic control of synchronization parameters by the controller, allowing the system to adaptively adjust the timing relationship between base stations. The controller modifies synchronization parameter sets based on network conditions, enabling flexible data rate adjustment while maintaining coordination capability. This resolves the contradiction by making the coordination mechanism dynamically adjustable rather than static.
Solution Approach 2:
The patent changes synchronization parameters (such as timing offsets, synchronization signal periods) controlled by a controller to adjust data rates. By modifying these parameters, the system can reduce data rates when needed while maintaining the ability to coordinate between base stations. This directly addresses the contradiction by providing a mechanism to change system parameters for rate control.
2Reliability
If synchronization between base stations is maintained for high data rates, then communication performance is improved, but resource control flexibility deteriorates
Solution Approach 1:
The controller monitors communication conditions and adjusts synchronization parameters based on feedback about network state, data rate requirements, and resource utilization. This feedback mechanism allows the system to maintain optimal synchronization for performance while providing flexible resource control when conditions change, resolving the contradiction between reliability and operational flexibility.
Solution Approach 2:
The system transitions from static synchronization to dynamic synchronization control, where the controller continuously adjusts synchronization parameters based on real-time network conditions. This enables the system to maintain high performance when needed while providing flexible resource control capability, resolving the contradiction between communication reliability and resource control flexibility.
3Ease of operation
If base stations communicate frequently for coordination, then resource control is improved, but network load increases
Solution Approach 1:
The patent implements periodic synchronization where base stations exchange coordination information at scheduled intervals rather than continuously. The controller adjusts the periodicity based on network conditions, allowing efficient resource control when updates are needed while reducing unnecessary communication overhead during stable periods. This resolves the contradiction between resource control effectiveness and network load.
Solution Approach 2:
The system changes synchronization parameter sets including timing and frequency of coordination communications based on network conditions. When resource control is critical, the controller increases coordination frequency; when network load is high, it reduces frequency. This parameter adjustment mechanism resolves the contradiction between resource control quality and network load/energy consumption.
Data Source
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AI summary
The invention relates to a communication system (100) for communication in a communication network. The communication system (100) comprises a first base station (101) for communication between a first communication device (107) in the communication network, the first base station (101) having a first control interface for resource control. The communication system (100) further comprises a second base station (103) for communication between a second communication device (109) in the communication network, the second base station (103) having a second control interface for resource control. The first control interface and the second control interface are provided for coordinating the first base station (101) and the second base station (103) in the communication system (100).The communication system (100) further comprises a controller (105) which is configured to change a time delay in the communication between the first control interface and the second control interface in order to change a data rate in the communication system (100).