WLAN UE Network Selection Using Cached AP Identity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
WLAN UE faces significant network resource consumption and access delays due to repeated network selection procedures when roaming, as it often defaults to previously selected mobile communication networks rather than potentially more optimal ones, leading to suboptimal connectivity.
Innovation Solution
The method involves the WLAN UE sending network selection information based on current AP identity or pre-configured highest priority networks, ensuring rapid access to the most appropriate mobile communication network by using stored identity information and valid survival times for network selection data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If WLAN UE performs repeated network selection procedures when roaming, then network selection accuracy may be maintained, but network resource consumption increases and access delays occur
Solution Approach 1:
The patent applies preliminary action by having the WLAN UE store identity information and network selection data from previous access operations. When roaming, the UE retrieves this pre-stored information to quickly determine network selection without performing complete network selection procedures, thereby reducing network resource consumption while maintaining selection accuracy through the use of cached identity information and valid survival time parameters
2Speed
If WLAN UE defaults to previously selected mobile communication networks, then access speed improves, but network optimization deteriorates
Solution Approach 1:
The patent applies dynamics by implementing a hybrid network selection mechanism that adapts based on the validity of stored identity information. When identity information is valid (within survival time), the system uses cached data for fast access. When identity information is invalid or expired, the system dynamically switches to performing complete network selection procedures to ensure network optimization, thus balancing access speed with network reliability
3Reliability
If WLAN UE performs complete network selection procedures every time, then network optimization is maintained, but access time increases
Solution Approach 1:
The patent applies preliminary action by caching identity information and network selection results from previous operations. The WLAN UE checks whether stored identity information is still valid by comparing against valid survival time parameters. When valid, the cached information is reused to avoid time-consuming complete network selection procedures, thereby reducing access time while maintaining network optimization through periodic validation
4Adaptability or versatility
If WLAN UE frequently switches among APs, then network adaptability improves, but network resource consumption increases
Solution Approach 1:
The patent applies copying by creating and storing copies of identity information and network selection data from previous access operations. When the WLAN UE frequently switches among APs, it retrieves these copied identity information records to determine network selection, avoiding the need to perform complete network selection procedures during each switch. This reduces network resource consumption while maintaining network adaptability through the use of cached identity information
Data Source
AI summary
The present invention discloses an interacting method for WLAN UE fast selecting an optimal mobile communication network to access in WLAN, first a WLAN UE judges whether the identity information of the WLAN AN exists in the WLAN identity information stored when mobile connection with the WLAN AN is established, if so, the network selection information corresponding to the identity of the WLAN stored will be sent to the WLAN AN, otherwise, a pre-configured mobile communication network with highest priority is regarded as network selection information to be sent to the WLAN AN; the WLAN AN identifies the mobile communication network to access according to the network selection information carried in Authentication Request, and connects the WLAN UE to the selected network to implement authentication. The method makes the WLAN UE select a mobile communication network to access rapidly when the WLAN UE accesses from a WLAN connected with multiple mobile communication networks.