Logical Channel Priority Mechanism for 6G Data Throughput
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Solution Overview
Problem
Existing wireless communication systems, particularly beyond 5G, face challenges in achieving high data throughput and low latency due to limitations in modem protocol architecture, such as critical sections that reduce parallelization efficiency and overheads in managing RLC windows.
Innovation Solution
The proposed solution involves designing a Logical Channel Priority (LCP) mechanism and resource allocation method for 6G and beyond 5G systems. This includes configuring Quality of Service (QoS) parameters like priority, Prioritized Bit Rate (PBR), and Bucket Size Duration (BSD) at the radio bearer level or Logical Channel Group (LCG) level, and allocating resources in a decreasing priority order to achieve high throughput and data rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing modem protocol architecture is used, then current data throughput requirements are met, but parallelization efficiency is reduced due to critical sections and overheads in managing RLC windows
Solution Approach 1:
The patent segments the RLC layer into multiple independent parallel instances, each handling different data flows or logical channels. This segmentation eliminates critical sections by making each instance independent, allowing simultaneous processing without coordination overhead, thereby improving parallelization efficiency and data throughput while reducing protocol architecture complexity
Solution Approach 2:
The patent introduces a new dimensional approach by mapping multiple data flows to multiple parallel RLC instances across different processor cores. This dimensional expansion from sequential single-core processing to parallel multi-core processing enables simultaneous handling of multiple data flows, increasing productivity while managing complexity through structured parallelization
2Speed
If subcarrier spacing is increased and TTI time is reduced to support THz band channel characteristics, then data throughput is improved, but protocol design complexity increases
Solution Approach 1:
The patent systematically changes key protocol parameters including subcarrier spacing, TTI duration, and packet sizes to optimize for THz band characteristics. By adjusting these parameters to match the high-speed requirements of THz communication, the system achieves improved data rates while managing protocol design complexity through standardized parameter modifications
3Productivity
If packet sizes are increased to enable high data throughput, then data rate is improved, but modem protocol architecture must be strengthened to sustain processing
Solution Approach 1:
The patent segments large packets into smaller units that can be processed by multiple parallel RLC instances simultaneously. This segmentation allows the modem protocol architecture to handle large packet sizes for high throughput while distributing the processing load across multiple cores, reducing the complexity burden on any single processing unit
Data Source
AI summary
The method includes receiving, by a network entity, a plurality of data packets to be prioritized belonging to a Data Radio Bearer (DRB) from a network to a User Equipment (UE) using a plurality of logical channels and configuring a Quality of Service (QoS) parameter of the plurality of logical channels. Further, the method includes allocating, by the network entity, the configured QoS parameter to the DRB, logical channel, a Logical Channel Group (LCG), and a DRB buffer or queue. Further, the method includes dividing, by the network entity, the QoS parameter across one of the DRB, the logical channel, the LCG, and a DRB buffer or queue and sending, by the network entity, the plurality of data packets to the UE by allocating at least one resource as per the PBR and the BSD.