Base Station Direct Routing via Serving Gateway Trigger
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Solution Overview
Problem
Current routing methods between base stations and serving gateways lead to non-optimum routing and delays due to the need for data packets to pass through a serving gateway, even when both user equipment (UE) are served by the same gateway, causing unnecessary routing losses.
Innovation Solution
A method where the serving gateway determines if it serves both UEs and, if so, triggers the base stations to establish a direct connection, allowing them to communicate without using the serving gateway, thereby optimizing the route and reducing transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data packets are routed through the serving gateway between base stations, then routing flexibility and centralized control are maintained, but transmission delay increases and routing efficiency deteriorates
Solution Approach 1:
The patent extracts the forwarding function from the serving gateway for specific local traffic flows. When the S-GW determines that both source and destination UEs are served by the same base station, it removes these packets from the standard routing path and directs them directly between base stations, eliminating unnecessary gateway involvement and reducing transmission delay.
Solution Approach 2:
The patent segments the routing process into two paths: standard routing through the S-GW for general traffic, and direct base station-to-base station routing for local traffic. This segmentation allows the system to maintain centralized control for most traffic while optimizing performance for local communications.
2Productivity
If direct connection between base stations is established, then routing efficiency improves and transmission delay reduces, but network control and routing management complexity increases
Solution Approach 1:
The serving gateway acts as an intermediary that manages the direct connections between base stations. It receives packets, determines whether direct routing is applicable, and forwards them appropriately. This mediator approach allows direct routing benefits while maintaining centralized control through the S-GW's routing determination logic.
Solution Approach 2:
The patent implements preliminary routing determination at the S-GW before packets are forwarded. The S-GW evaluates routing conditions in advance and establishes direct paths when beneficial, preventing packets from taking suboptimal routes and reducing overall routing management complexity.
3Loss of energy
If all data packets pass through the serving gateway, then centralized routing control is maintained, but network resource utilization deteriorates and unnecessary routing losses occur
Solution Approach 1:
The patent implements dynamic routing where the path selection adapts based on traffic conditions and network topology. The S-GW dynamically determines whether to use standard routing or direct base station routing based on real-time conditions, optimizing resource utilization while maintaining automated control.
Solution Approach 2:
The patent applies different routing qualities to different traffic flows. Local traffic between UEs served by the same base station receives optimized direct routing treatment, while other traffic follows standard centralized routing. This local quality differentiation reduces overall routing loss while maintaining automated control.
Data Source
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AI summary
Embodiments of the present invention provide a routing method between base stations, a serving gateway, and a base station, where the method includes: receiving, by a first serving gateway, a first user data packet of first UE sent by a first base station, and determining, according to the first user data packet, whether the first serving gateway serves both the first UE and second UE, where the second UE is a communication peer end of the first UE; and if the first serving gateway determines that the first serving gateway serves both the first UE and the second UE, triggering, by the first serving gateway, the first base station to acquire first routing information required for direct communication with a second base station, and triggering the second base station to acquire second routing information required for direct communication with the first base station, so that the first base station and the second base station establish a direct connection according to the first routing information and the second routing information. According to the method provided in the embodiments, a route between the two base stations is more optimal, and a transmission delay of a data packet is also reduced.