Relay Node Data Type Identification for Forwarding Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In multi-hop relay networks, relay nodes (RN) lack a method to identify and process data received, leading to inefficiencies in data transmission due to the absence of specific procedures for detecting data types and managing protocol stacks, which affects processing latency and forwarding speed.
Innovation Solution
A data transmission method where RNs send messages with type identifiers to indicate the type of data, allowing for efficient processing based on the type, including user plane data, status reports, and control plane messages, using a unified message format to reduce processing time and enhance forwarding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If relay nodes process data at multiple protocol layers (PDCP, RLC, MAC, PHY), then data processing capability is improved, but processing latency increases and forwarding speed decreases
Solution Approach 1:
The patent segments the protocol stack processing by placing PDCP layer in donor base station and RLC layer in relay nodes. This segmentation allows relay nodes to process only L2 architecture data (MAC and PHY layers) while PDCP processing occurs at the donor base station, reducing the processing burden and latency at relay nodes while maintaining overall data processing capability.
Solution Approach 2:
The patent introduces a type identifier as an intermediary element that enables relay nodes to quickly identify and route different types of data (user plane data, control plane data, status reports) without requiring complex analysis. This intermediary mechanism streamlines the data processing flow and reduces processing latency at relay nodes.
2Measurement precision
If relay nodes implement comprehensive data detection and processing functions, then data identification accuracy is improved, but device complexity increases
Solution Approach 1:
The patent extracts the PDCP layer processing function from relay nodes and places it in the donor base station. This extraction removes the need for relay nodes to implement complex PDCP detection and processing, thereby reducing device complexity at relay nodes while maintaining accurate data identification through the simplified type identifier mechanism.
Solution Approach 2:
The patent changes the data representation by introducing type identifiers that explicitly mark different data types. This parameter change simplifies the identification process at relay nodes, allowing them to accurately distinguish between user plane data, control plane data, and status reports without requiring complex detection algorithms, thus reducing processing complexity.
3Productivity
If a unified message format with type identifiers is used, then forwarding efficiency is improved, but message structure complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-tagging data with type identifiers before transmission through the relay network. This allows relay nodes to quickly identify and forward data based on the pre-marked type identifiers without requiring complex real-time analysis, thereby improving forwarding efficiency while keeping the message structure relatively simple.
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4B
AI summary
Embodiments of this application disclose a data transmission method and apparatus, and relate to the field of communications technologies, so that a relay node RN can quickly identify and process data received by the relay node RN. The method is applied to a first communications device or a chip in the first communications device, and the first communications device is an intermediate forwarding node, a serving node of a terminal, a donor base station, or a distributed unit DU in a donor base station system. The method includes: obtaining first data; and sending, to a second communications device, a first message including the first data and a type identifier, where the type identifier is used to indicate a type of the first data, and the type of the first data includes at least one of user plane data, a status report, a control plane message, and a radio resource control RRC message of the terminal.