UE Multi-RAN Access via Stored Node Identifiers
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Solution Overview
Problem
Current communication systems do not allow User Equipment (UE) to simultaneously access networks through multiple Radio Access Networks (RANs), which is necessary for future 5G network compatibility with multiple access systems.
Innovation Solution
The UE stores identifier information of a network node from a first RAN and transmits a connection establishment request to a second RAN, enabling the second RAN to select the appropriate network node for access, using temporary identifiers allocated by core and aggregation nodes to manage context information across both networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE is allowed to access networks through multiple RANs simultaneously, then the network adaptability and future 5G compatibility are improved, but the device complexity and network management complexity increase
Solution Approach 1:
The patent introduces a network node as an intermediary that manages the UE's connections to multiple RANs. The network node receives identifier information from the UE, selects appropriate network nodes for each RAN, and establishes connections accordingly. This intermediary approach simplifies the UE's task of managing multiple networks while enabling multi-RAN access capability.
Solution Approach 2:
The patent implements preliminary action by having the UE store identifier information of network nodes before actually establishing connections. The UE stores this information locally and uses it when needing to access multiple RANs, avoiding the need for complex real-time network node selection and reducing immediate network management complexity.
2Adaptability or versatility
If the UE stores identifier information and transmits connection establishment requests to multiple RANs, then the UE's ability to reside in multiple networks simultaneously is improved, but the network resource requirements increase
Solution Approach 1:
The patent applies universality by having the UE use the same stored identifier information across multiple RANs. Instead of requiring separate network node selections for each RAN, the UE transmits the same identifier information to different RANs, allowing a single set of stored information to serve multiple network access purposes, thereby reducing overall network resource requirements.
Solution Approach 2:
The patent uses copying by having the UE store and reuse identifier information of network nodes across different RAN connections. The UE creates a copy of the identifier information locally and reuses it when establishing connections to different RANs, avoiding the need for unique network node assignments for each RAN and reducing network resource consumption.
3Productivity
If the second RAN selects network nodes using identifier information from the first RAN, then the network node selection efficiency is improved, but the information transmission and processing complexity increase
Solution Approach 1:
The patent implements self-service by having the UE autonomously store and manage its own identifier information. The UE independently stores network node identifiers and transmits them to RANs without requiring complex network-side processing to determine which identifiers to use. This self-service approach improves selection efficiency while keeping information processing complexity manageable at the UE level.
Data Source
AI summary
A network access method, a relevant device and a system are provided. The network access method includes: storing, by a UE, identifier information of a network node that the UE accesses via a first RAN; and transmitting, by the UE, a connection establishment request comprising the identifier information of the network node to a second RAN while the UE maintains the connection to the first RAN, to enable the second RAN to select the network node for the UE as a network node that the UE accesses via the second RAN.