Un Interface Relay Protocol Stack Segmentation for Throughput
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Solution Overview
Problem
The throughput and delay characteristics of the Un interface in relay mobile communication systems need improvement to enhance system performance and capacity, particularly in scenarios where user equipment is outside the coverage area or signal quality is obstructed.
Innovation Solution
Configuring multiple transmission planes on the protocol stacks of the Un interface between a relay device and an eNodeB, allowing data to be transmitted over these planes through separate MAC, RLC, and PDCP entities, which enables improved throughput and reduced delay by distributing data across multiple paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single transmission plane is used on the Un interface, then the protocol stack structure is simple, but the throughput is limited and delay is increased
Solution Approach 1:
The patent divides the transmission interface into multiple independent transmission planes (first transmission plane and second transmission plane), each with its own MAC entity, RLC entity, and PDCP entity. This segmentation allows parallel data transmission paths, increasing throughput while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The patent introduces a multi-plane transmission dimension beyond the traditional single transmission path. By adding temporal and logical dimensions to the transmission structure, multiple data streams can be transmitted simultaneously through different planes, effectively increasing capacity without proportionally increasing physical complexity.
2Loss of time
If a single transmission plane is used on the Un interface, then the protocol implementation is simple, but the delay characteristic deteriorates
Solution Approach 1:
The patent segments the transmission function across multiple planes, allowing different data to be transmitted in parallel. This reduces the queueing delay and processing time for individual data packets, thereby improving delay characteristics while the modular structure keeps implementation complexity manageable.
3Productivity
If multiple transmission planes are configured on the Un interface, then the throughput is improved and delay is reduced, but the device complexity increases
Solution Approach 1:
The patent designs each transmission plane with a universal protocol stack structure (MAC entity, RLC entity, PDCP entity) that can handle various data types and priorities. This multi-functionality allows the system to achieve high throughput through multiple planes while avoiding complexity multiplication, as each plane follows the same proven architectural pattern.
Data Source
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AI summary
A method for data transmission based on a relay mobile communication system and an equipment thereof are provided by the present invention. The method includes: at least two transport planes are configured on the Un interface protocol stack of the relay equipment and the base station eNode B; the relay equipment and the eNode B transmit the data via at least two transport planes configured on the Un interface protocol stack. With the present invention, the throughput rate of the Un interface between the relay equipment and the eNode B in the relay mobile communication system is improved, and the time delay of the Un interface is reduced.