Roaming Network Access via Historical Registration Lists
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Solution Overview
Problem
User equipment experiences prolonged delays in initial network registration during roaming due to extensive network searching and multiple registration attempts, especially in areas with numerous operators, leading to poor user experience.
Innovation Solution
The user equipment maintains a list of networks with which registration has been successful in the past, allowing it to target these networks first during the initial access process, reducing the duration of network searching and improving registration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE performs full-band network searching and attempts registration with multiple available networks according to priority rules, then the UE can ensure successful registration with a suitable network, but the registration process takes excessively long time due to extensive searching and multiple attempt rounds
Solution Approach 1:
The patent applies preliminary action by having the UE store historical roaming information (lists of available networks and successfully registered networks) before actual roaming occurs. When roaming, the UE directly utilizes these pre-stored lists to quickly identify and register with suitable networks, avoiding the need to perform extensive full-band network searching and multiple registration attempts in real-time.
2Loss of time
If the UE stores and utilizes historical roaming information including lists of available networks and successfully registered networks, then the initial network access time in roaming areas is significantly reduced, but the device complexity increases due to additional storage and management requirements
Solution Approach 1:
The patent applies self-service by enabling the UE to automatically store, update, and manage its own historical roaming information without requiring external assistance. The UE autonomously maintains the lists of available networks and successfully registered networks, performing self-updates based on registration outcomes, which reduces the need for complex external management systems.
3Reliability
If the UE attempts to register with the same available network multiple times until a preset stop condition is satisfied, then the UE ensures successful registration, but the waiting time is excessively long especially when there are many small operators in the roaming area
Solution Approach 1:
The patent applies feedback by using the stored historical roaming information to guide the registration process. The UE feedbacks on registration success or failure and uses this information to update its stored lists, thereby avoiding repeated attempts with the same networks and reducing unnecessary waiting time. The feedback mechanism allows the UE to learn from past registration outcomes and optimize future registration decisions.
Data Source
AI summary
Embodiments of the present invention provide a roaming network access method and apparatus, where the method includes: acquiring, by user equipment, a list of networks with which registration can be successful; searching, by the user equipment, for an available network in a roaming area; each time the user equipment finds an available network, determining, by the user equipment, whether the found available network is recorded in the list of networks with which registration can be successful; and if yes, attempting, by the user equipment, to register with the found available network. According to the roaming network access method and apparatus provided in the embodiments of the present invention, duration of network searching performed by user equipment is reduced, time spent by the user equipment on initial network access in a roaming area is shortened, and user experience is improved.