Access Network Routing Contexts for Direct Core Network Selection
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Solution Overview
Problem
The existing 5G communication architecture experiences inefficient communication services due to repeated forwarding of data packets through multiple network elements, leading to suboptimal routing and reduced efficiency.
Innovation Solution
A routing selection method and apparatus that updates routing information based on a route reassignment message from a serving core network device, allowing the access network device to efficiently direct communication packets to the appropriate network elements, thereby optimizing the communication service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data packets are forwarded through multiple network elements for routing selection, then routing flexibility is improved, but communication service efficiency deteriorates due to repeated forwarding and redundant processing
Solution Approach 1:
The patent applies preliminary action by pre-establishing routing contexts and making routing decisions at the access network device before data packet transmission. The access network device determines the target core network device in advance and establishes the routing context proactively, so that when data packets need to be forwarded, the routing path is already determined and ready, eliminating repeated routing decisions and improving communication service efficiency while maintaining routing flexibility
2Adaptability or versatility
If routing decisions are made at each core network device, then routing adaptability is improved, but communication service efficiency deteriorates due to repeated determination processes
Solution Approach 1:
The patent introduces the access network device as an intermediary that performs routing determination. Instead of each core network device independently making routing decisions, the access network device acts as an intermediary that determines the target core network device and establishes the routing context once. This intermediary approach maintains routing adaptability while eliminating repeated determination processes, as subsequent data packets follow the pre-established routing path without requiring re-determination at each core network device
3Stability of the object's composition
If data packets are resent through the same routing path, then routing consistency is improved, but communication service efficiency deteriorates due to repeated forwarding steps
Solution Approach 1:
The patent merges the routing determination function and routing context management into the access network device. By combining these functions at a single location (the access network device), the system achieves routing consistency through a unified routing context that is established once and reused for subsequent data packets. This merging eliminates the need for repeated forwarding steps through multiple decision points, improving communication service efficiency while maintaining routing consistency
Data Source
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AI summary
A routing selection method, apparatus, device and system and a storage medium are provided. The method includes receiving a route reassignment message sent by a serving core network device. The route reassignment message includes at least one of at least one of identification information or address information of an initial core network device; at least one of identification information or address information of the serving core network device; a context identifier assigned for a served object in at least one of the initial core network device, the access network device or the serving core network device; network slice information supported by the served object; or operator information supported by the served object.