UE Status Indication for WLAN Access Control in RAN
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Solution Overview
Problem
Current systems lack the ability to efficiently determine whether to grant user equipment (UE) access to a wireless local area network (WLAN) based on its status within a telecommunications network, such as available services or user preferences, leading to potential delays and inefficient resource allocation.
Innovation Solution
Incorporating an indication of UE status within WLAN access messages, which can include information about RAN accessibility, service coverage, and user preferences, allowing the WLAN to make informed decisions on access authorization, either directly or by querying network entities within the telecommunications network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the WLAN makes access decisions without UE status information from the telecommunications network, then the access decision process is simple and fast, but the resource allocation efficiency deteriorates and access prioritization becomes inaccurate
Solution Approach 1:
The UE includes status information (such as RAN accessibility status, service coverage status, and user preferences) in the WLAN association request message before the WLAN makes the access decision. This preliminary provision of information allows the WLAN to make informed decisions without requiring complex real-time querying mechanisms.
Solution Approach 2:
The UE acts as an intermediary that translates and conveys telecommunications network status information to the WLAN. By including this information in the association request, the UE enables the WLAN to make accurate access decisions without direct integration or complex communication protocols between the WLAN and telecommunications network.
2Measurement precision
If the WLAN queries the telecommunications network for UE status information, then the access decision accuracy improves, but the access delay increases
Solution Approach 1:
The UE determines and includes its status information (RAN accessibility, service coverage, user preferences) in the WLAN association request message before the WLAN needs to make an access decision. This eliminates the need for time-consuming queries during the association process.
Solution Approach 2:
The UE autonomously determines its own status information and provides it to the WLAN without requiring the WLAN to query external telecommunications network entities. This self-service approach significantly reduces access delay while maintaining decision accuracy.
3Reliability
If the WLAN integrates with the telecommunications network to obtain UE status information, then the service consistency improves, but the system complexity increases
Solution Approach 1:
The UE serves as an intermediary that provides telecommunications network status information to the WLAN without requiring direct integration between the WLAN and telecommunications network. This maintains service consistency while avoiding the complexity of network-to-network integration.
Solution Approach 2:
The solution separates the WLAN access decision function from the telecommunications network status management function. The WLAN makes access decisions based on status information provided by the UE, rather than requiring integrated network infrastructure.
Data Source
AI summary
A network entity receives a WLAN access message from a UE. The WLAN access message includes an indication of the UE status with the telecommunication network. The network entity detects the indication of UE status and determines from the indication whether to allow the UE access to the WLAN. When the WLAN is integrated with the telecommunications network, the network entity sends a query to the telecommunication network (e.g. the RAN or core network part) for a decision based on the UE status with the telecommunication network. The indication may include data representative of RAN or core network accessibility information (e.g., limited service or no coverage), WLAN access only, a user preference for accessing the WLAN instead of the telecommunication network, and/or any other connectivity or preference information for use by the WLAN or network entity in determining whether to allow UE to access WLAN.