HSUPA Base Station Scheduling Grant Generation
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Solution Overview
Problem
Current HSUPA systems face challenges in generating Absolute Grants (AG) and Relative Grants (RG) for resource scheduling by serving and non-serving base stations, particularly in determining the upper limit of available resources and actual usage, which affects uplink performance and user experience.
Innovation Solution
The method involves base stations generating scheduling grants based on scheduling information, happy bits, and measured interference values, with configured thresholds, to differentiate between Absolute and Relative Grants, prioritizing interference information over user satisfaction when inconsistent, and utilizing a system with a transmitting module in terminals, a configuration module in SRNC, and a measurement and calculation module in base stations for resource scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station generates scheduling grants based on multiple parameters (SI, happy bit, interference), then the resource allocation accuracy is improved, but the processing complexity increases
Solution Approach 1:
The scheduling grant generation process is segmented into distinct functional modules: interference measurement module, SI processing module, happy bit processing module, and grant calculation module. Each module handles a specific aspect of the scheduling decision, making the complex process more manageable and implementable while maintaining high allocation accuracy through coordinated operation of all modules.
2Adaptability or versatility
If the serving base station generates both Absolute Grant and Relative Grant, then the scheduling flexibility is improved, but the signaling overhead increases
Solution Approach 1:
The system dynamically selects between generating Absolute Grant (AG) or Relative Grant (RG) based on current network conditions and terminal states. The base station adapts the grant type and parameters according to interference levels, terminal buffer status, and scheduling requirements, providing scheduling flexibility while optimizing signaling overhead by not always transmitting both grant types.
3Reliability
If the non-serving base station generates Relative Grant based on current interference, then the interference management is improved, but the coordination complexity between base stations increases
Solution Approach 1:
Each base station (serving and non-serving) independently measures and processes local interference conditions to generate appropriate Relative Grants. This localized interference management approach allows each base station to optimize its own cell's uplink performance based on local conditions, reducing the need for complex real-time coordination while maintaining reliable interference management through distributed decision-making.
Data Source
AI summary
Method and system for scheduling of a base station for HSUPA is provided. The method for scheduling of base station includes a method for scheduling of serving base station and a method for scheduling of non-serving base station, in which the method for scheduling of the serving base station comprises the base station generating a scheduling grant based on scheduling information SI and a happy bit transmitted from a terminal and based on a currently measured interference value, a configured threshold and associated resource information. The method for scheduling of the non serving base station comprises the base station generating a scheduling grant based on a currently measured interference value, a configured threshold and associated resource information. The system for scheduling of a base station comprises a transmitting module is used by the terminal for transmitting information to the base station; a configuration module is used by the SRNC for configuring parameters of associated threshold to the base station; a measurement module is used by the base station for measuring current interference; a calculation module is used by the base station for performing scheduling based on the current-obtained information. The present invention has solved the problem in scheduling of the base station for resources among terminals, which achieves the object of enhancing performance of uplink in a system and improving experience for users and has an important effect on HSUPA normalization process.