Radio Access Network Fairness via Operator Bandwidth Feedback
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Solution Overview
Problem
In radio access network sharing, existing methods fail to ensure fair data transmission among operators during congestion, as they cannot identify and adjust the bandwidth usage of individual operators, leading to unfair discarding of low-priority services.
Innovation Solution
A method where a receive end determines fairness based on preset bandwidth occupation proportions and sends feedback to a transmit end to adjust data transmission rates, ensuring fair sharing by identifying and reducing or maintaining transmission rates of operators using excessive bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bearer network performs scheduling according to IP packet priorities during congestion, then high-priority services are transmitted preferentially, but low-priority services of operators with fewer high-priority services are unfairly discarded
Solution Approach 1:
The patent segments the bandwidth allocation by introducing operator identification at the IP layer, dividing the shared bearer network into operator-specific virtual channels. This allows the network to track and control bandwidth usage per operator, enabling fair resource distribution while maintaining QoS prioritization within each operator's allocated bandwidth.
Solution Approach 2:
The patent implements a feedback mechanism where the receive end monitors bandwidth usage and transmission fairness, then sends feedback information to the transmit end. This feedback loop enables dynamic adjustment of transmission rates to maintain fair bandwidth occupation proportions among operators while ensuring reliable service transmission.
2Ease of manufacture
If the network shares bandwidth among multiple operators without identification capability, then network construction costs are reduced, but individual operator bandwidth usage cannot be controlled or monitored
Solution Approach 1:
The patent introduces an intermediary mechanism at the IP layer that adds operator identification information to packets without requiring physical network segmentation. This intermediary layer enables precise measurement and control of bandwidth usage per operator while using the existing shared bearer network infrastructure, avoiding the need for separate physical networks for each operator.
3Ease of operation
If the transmit end dynamically adjusts transmission rates based on feedback, then fair bandwidth sharing is achieved during congestion, but additional signaling overhead is introduced
Solution Approach 1:
The patent merges the fairness control signaling with existing QoS and flow control mechanisms in the communication protocol. By combining multiple functions (operator identification, bandwidth monitoring, fairness control, and rate adjustment) into a unified feedback framework, the patent reduces redundant signaling overhead while achieving fair bandwidth sharing among operators.
Data Source
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AI summary
Embodiments of the present invention disclose a radio access network sharing method, a transmit end, and a receive end. The method includes: determining, by the receive end, according to a fairness rule, whether data transmission from the transmit end is fair; and issuing, by the receive end, an instruction to the transmit end according to a result of the determining, so that the transmit end adjusts the data transmission according to the feedback information. The radio access network sharing method, the transmit end, and the receive end in the embodiments of the present invention may implement fairness in sharing radio access network resources among multiple operators.