DRB Configuration for Multi-Numerology Service Mapping
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Solution Overview
Problem
Current communication systems face challenges in satisfying the diverse service attribute requirements of different communication services, such as eMBB, URLLC, and mMTC, due to limitations in supporting multiple numerologies and resource allocation.
Innovation Solution
The proposed communication method involves configuring data radio bearers (DRBs) with specific numerologies and priorities, allowing terminals to select the most suitable serving cells and numerologies for data transmission based on DRB configuration information, enabling flexible scheduling and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a current system architecture is used, then the system structure is simple, but it cannot satisfy specific service attribute requirements for different service types
Solution Approach 1:
The patent segments the data transmission system by separating different service types (eMBB, URLLC, mMTC) into different DRBs, each with its own numerology configuration. This segmentation allows each service type to have dedicated resource allocation and scheduling parameters, enabling the system to satisfy specific service attribute requirements while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent applies parameter changes by configuring different numerologies (subcarrier spacing, cyclic prefix length, TTI duration) for different DRBs based on service type requirements. By dynamically adjusting these parameters according to service characteristics, the system achieves adaptability to diverse service attributes without requiring a completely new architectural framework.
2Adaptability or versatility
If multiple numerologies are supported at the same carrier, then service diversity is improved, but resource allocation becomes more difficult
Solution Approach 1:
The patent implements dynamics by enabling flexible scheduling that adapts to real-time resource availability and service requirements. The base station can dynamically allocate resources across different DRBs with different numerologies based on current traffic conditions, ensuring efficient resource utilization while maintaining the ability to support multiple service types simultaneously.
Solution Approach 2:
The patent applies preliminary action by pre-configuring DRBs with specific numerologies and priorities before actual data transmission occurs. This preliminary configuration establishes the framework for resource allocation, allowing the base station to make faster, more informed scheduling decisions during operation without having to allocate resources from scratch for each service type.
3Productivity
If scheduling flexibility is implemented, then data transmission efficiency is improved, but control complexity increases
Solution Approach 1:
The patent incorporates feedback mechanisms where the base station receives status information about resource usage and service requirements, then adjusts scheduling decisions accordingly. This feedback loop enables the system to optimize data transmission efficiency by reallocating resources based on actual performance data while providing the base station with the control information needed to manage complexity.
Solution Approach 2:
The patent applies self-service by enabling the terminal to autonomously select appropriate serving cells and numerologies based on configured DRB parameters and current transmission needs. This autonomous selection reduces the scheduling control burden on the base station while maintaining high data transmission efficiency through optimal resource utilization.
Data Source
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AI summary
Embodiments of the present invention propose a communication method. The communication method includes: obtaining, by a base station, DRB configuration information, where the DRB configuration information is used to determine a mapping relationship between serving cells and DRBs used to carry data of different service types; and sending the DRB configuration information to a terminal, so that the terminal communicates with the base station in a serving cell corresponding to a DRB. The embodiments of the present invention further disclose a base station and a terminal to which the communication method is applied.