Single-DRB Packet QoS Differentiation for Efficient Data Transmission
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Solution Overview
Problem
Existing telecommunications systems face inefficiencies in resource allocation due to the need to set up multiple data radio bearers (DRBs) with the highest quality parameters to accommodate different data streams, even when lower quality requirements are sufficient, particularly in extended reality services, leading to unnecessary resource allocation and overhead.
Innovation Solution
Implementing a system where data packets are transmitted with variable transmission quality parameters and periodicities within the same DRB by utilizing information in the data packet headers, such as the MAC header or GTP-U header, to differentiate and optimize resource usage based on the specific requirements of each data packet type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate DRBs are set up for different data streams with different QoS requirements, then each data stream can be transmitted with its specific quality parameters, but the number of DRBs increases and system overhead increases
Solution Approach 1:
The patent combines multiple data streams with different QoS requirements into a single DRB by using packet prioritization mechanisms. Instead of creating separate DRBs for each data stream, the system multiplexes multiple streams within one DRB and applies different priority levels to packets based on their QoS requirements, thereby reducing the number of DRBs while maintaining service quality differentiation.
Solution Approach 2:
The patent makes a single DRB serve multiple functions by enabling it to carry different types of data packets with different QoS requirements simultaneously. The DRB is designed to handle both high-priority and low-priority traffic within the same bearer, making it a universal transmission channel that adapts to various service requirements through packet-level prioritization rather than requiring dedicated bearers for each service type.
2Device complexity
If a single DRB is used for multiple data streams, then the number of DRBs is reduced, but all data packets must be transmitted with the highest quality parameters leading to unnecessary resource allocation
Solution Approach 1:
The patent applies local quality by differentiating packet transmission quality within a single DRB based on individual packet priorities. Instead of applying uniform high-quality parameters to all packets, the system assigns different transmission qualities locally to each packet or packet type according to its specific QoS requirements. This allows high-priority packets to receive enhanced transmission resources while low-priority packets use standard resources, optimizing overall resource allocation efficiency.
Solution Approach 2:
The patent changes transmission parameters dynamically based on packet priority levels. By modifying parameters such as modulation and coding schemes, resource allocation, and retransmission priorities according to the specific requirements of each data packet, the system avoids consistently using the highest quality parameters for all transmissions. This parameter adaptation enables efficient resource utilization while meeting varying QoS demands within the same DRB.
3Reliability
If DRBs are set up with the highest quality parameters to accommodate all data streams, then all data can be transmitted reliably, but resource allocation becomes inefficient for data streams with lower quality requirements
Solution Approach 1:
The patent introduces dynamics by making transmission quality parameters adaptable rather than static. The system dynamically adjusts transmission parameters based on the priority level of each data packet, allowing transmission reliability to match the actual requirements of each stream. High-priority packets receive enhanced reliability measures while low-priority packets use standard transmission, creating a dynamic resource allocation system that optimizes both reliability and efficiency.
Solution Approach 2:
The patent applies partial action by providing enhanced transmission reliability only to the extent necessary for each data stream's requirements. Instead of applying maximum reliability measures uniformly to all packets, the system applies enhanced measures selectively to high-priority packets that truly require them, while using standard measures for lower-priority traffic. This partial application of quality enhancement optimizes resource efficiency while maintaining adequate reliability for all streams.
Data Source
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AI summary
System and method for communicating data with user equipment, UE, the comprising establishing a data radio bearer, DRB, between a base station and the UE and transmitting data packets between the base station and the UE through the DRB, wherein data packets are transmitted using different transmission quality parameters.