Logical Channel Group Token Bucket for Slice MBR Enforcement
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Solution Overview
Problem
Existing wireless communication systems lack efficient mechanisms to enforce slice-specific maximum bit rates, particularly in network slicing scenarios, where current Logical Channel restrictions are insufficient for optimizing uplink data transmission according to negotiated network slice characteristics.
Innovation Solution
Implementing a token bucket configuration for groups of Logical Channels (LCHs) belonging to the same slice, with an additional group bucket to enforce Slice-Aggregated Maximum Bit Rate (S-MBR), and dynamically suspending radio bearers/logical channels using Medium Access Control Elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing is implemented to optimize traffic types and communication services, then service customization and QoS differentiation are improved, but network complexity and configuration management difficulty increase
Solution Approach 1:
The patent divides the network into multiple independent network slices, each optimized for specific traffic types or services. Each slice is configured with dedicated parameters including token bucket configurations, MBR limits, and BSD values, allowing independent optimization without affecting other slices. This segmentation enables service customization while managing complexity through modular configuration.
Solution Approach 2:
The patent applies different quality parameters and configurations to different network slices based on their specific requirements. Each slice can have customized MBR, BSD, and token bucket settings tailored to its service type (e.g., eMBB, URLLC, mMTC), enabling local optimization of QoS characteristics for diverse services within the same network infrastructure.
2Reliability
If Logical Channel restrictions are applied to control uplink data transmission, then bit rate control is improved, but transmission efficiency and resource utilization deteriorate due to insufficient optimization for slice-specific characteristics
Solution Approach 1:
The patent introduces slice-specific parameters including MBR (Maximum Bit Rate), BSD (Bucket Size Duration), and token bucket configurations that are tailored to each network slice's requirements. These parameters dynamically adjust bit rate control mechanisms to match slice characteristics, improving both control accuracy and transmission efficiency compared to generic Logical Channel restrictions.
Solution Approach 2:
The patent implements dynamic bit rate control through token bucket mechanisms that adapt to real-time slice conditions. The BSD and MBR parameters enable flexible adjustment of data transmission rates based on slice-specific QoS requirements, allowing the system to optimize transmission efficiency while maintaining reliable bit rate control under varying network conditions.
3Reliability
If aggregated MBR enforcement is implemented for groups of Logical Channels, then QoS compliance and resource allocation optimization are improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent merges multiple Logical Channels into groups that share common token bucket configurations and MBR enforcement mechanisms. By aggregating LCHs into groups with shared resources and control parameters, the system achieves efficient QoS compliance and resource allocation while reducing processing overhead compared to managing each LCH independently with separate control mechanisms.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for enforcing a group-specific maximum bit rate. One method includes receiving a configuration for a set of logical channels (LCHs) and receiving a configuration for a group token bucket associated with a subset of the set of LCHs, the configuration for the group token bucket including an aggregated maximum bit rate and a bucket size duration. The method includes maintaining a variable BS-MBR associated with the group token bucket, the variable BS-MBR representing a number of bits to be used for transmission of one or more data units of the subset of LCHs. The method includes multiplexing data from the set of LCHs based on the variable BS-MBR and transmitting the multiplexed data in a transport block.