Base Station Data Forwarding Without Tunnel Encapsulation
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Solution Overview
Problem
In wireless backhaul transmission systems, data sent from a Secondary Base Station (SBS) to a Primary Base Station (PBS) requires tunnel encapsulation, leading to wastage of transmission bandwidth.
Innovation Solution
Implementing a method where the PBS directly forwards data from or to a backhaul terminal without tunnel encapsulation or decapsulation, using a receiving module, backhaul judging module, and sending module to identify and process data from or to the backhaul terminal, and employing code point labeling and classification to map data to corresponding radio bearers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tunnel encapsulation is performed on data sent from SBS to PBS, then data can be transmitted through the core network element of PBS, but transmission bandwidth is wasted due to encapsulation overhead
Solution Approach 1:
The patent applies local quality by differentiating data forwarding methods based on the terminal type. For backhaul terminals, direct forwarding without tunnel encapsulation is used to save bandwidth. For common terminals, traditional tunnel encapsulation is maintained to ensure reliability. This localized optimization resolves the contradiction by applying the appropriate processing method to each data stream based on its specific requirements.
Solution Approach 2:
The patent changes the forwarding parameter (tunnel encapsulation) based on the terminal type identification. When the terminal is identified as a backhaul terminal, the encapsulation parameter is changed to direct forwarding mode, eliminating the bandwidth waste while maintaining transmission reliability through alternative identification and routing mechanisms.
2Device complexity
If tunnel encapsulation and decapsulation are performed at PBS for backhaul terminal data, then data routing is simplified, but transmission delay increases due to additional processing steps
Solution Approach 1:
The patent applies preliminary action by pre-establishing identification mechanisms for backhaul terminals before data transmission. The PBS has pre-configured knowledge about backhaul terminal identities and their corresponding routing paths, allowing direct forwarding without real-time encapsulation/decapsulation processing. This preliminary preparation eliminates the time-consuming processing steps while maintaining simplified routing through advance planning.
3Adaptability or versatility
If all data streams from SBS pass through PBS core network elements, then protocol compatibility is maintained, but transmission efficiency decreases due to unnecessary processing
Solution Approach 1:
The patent applies segmentation by dividing data streams into two categories: those from backhaul terminals and those from common terminals. Each category is processed differently - backhaul terminal data is forwarded directly without passing through PBS core network elements, while common terminal data continues to use the traditional path through core network elements. This segmentation maintains protocol compatibility for standard terminals while improving transmission efficiency for backhaul traffic.
Data Source
AI summary
A method for realizing data forwarding, a network system, and a related device are provided. The method includes: receiving data sent from an external device; and judging whether the data is from or to a backhaul terminal, and directly forwarding the data if the data is from or to the backhaul terminal. A Base Station (BS) device includes: a receiving module, configured to receive data sent from an external device; a backhaul judging module, configured to judge whether the data is from or to a backhaul terminal; and a sending module, configured to directly forward the data after the backhaul judging module judges that the data is from or to the backhaul terminal. A backhaul terminal and a network system are further correspondingly provided. Accordingly, transmission bandwidth is saved through the provided technical solutions.