Network Name Consistency in Wireless User Equipment
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Solution Overview
Problem
In wireless communication networks, particularly in EPS networks, the inconsistent display of network names on user equipment (UE) leads to poor user experience due to changes in network names during service execution, especially when CSFB and SMS over SGs technologies are used, causing uncertainty about which network name to display.
Innovation Solution
A method and apparatus for UE to consistently display a network name by attaching to a first network, executing combined attach or tracking area update procedures, and maintaining the initial network name even when switching to another network, by ignoring or not receiving updated network names, ensuring the displayed name aligns with the network device's recorded name.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE displays network name based on PLMN ID configuration, then the UE can display network name, but the displayed network name may be inconsistent with the network device's recorded name when CSFB or SMS over SGs is used
Solution Approach 1:
The patent implements a feedback mechanism where the network device (MME) provides feedback information about the selected PLMN and network name to the UE. The UE uses this feedback to determine which network name to display, ensuring consistency between what the network device records and what the UE displays. This feedback loop resolves the contradiction by aligning the UE's display with network device records while maintaining good user experience.
2Measurement precision
If the UE displays network name based on current network location, then the UE can show accurate location information, but the network name changes during service execution causing uncertainty
Solution Approach 1:
The patent applies preliminary action by having the UE determine and display the network name based on the PLMN selected during the attach procedure before any service execution begins. The UE uses the network name information provided in the attach accept message or tracking area update accept message as a preliminary reference. This preliminary determination ensures that the network name displayed during service execution remains stable and consistent, preventing changes that would cause user uncertainty.
3Adaptability or versatility
If multiple PLMNs provide CS service, then service coverage is improved, but the UE cannot determine which network name to display
Solution Approach 1:
The patent introduces an intermediary mechanism where the network device (MME) acts as a mediator between multiple PLMNs and the UE. The MME selects the appropriate PLMN for the UE based on network policies and provides the selected PLMN's network name information to the UE through attach accept or tracking area update accept messages. This intermediary approach allows multiple PLMNs to provide service coverage while giving the UE clear guidance on which network name to display, eliminating the difficulty of determination.
Data Source
AI summary
A user equipment UE attaches to a first network, and displays a first network name, where the first network name is a network name of the first network; or the UE executes a combined attach procedure or a combined tracking area update procedure to attach to the first network or a second network, and displays the first network name, where the first network name is a network name of the first network or a network name of the second network; and in a process of executing a service in the first network, the UE changes from the first network to the second network or a third network, and the UE keeps displaying the first network name. It is ensured that a network name displayed on a terminal is consistent with a network name that is displayed on a UE and recorded by a network device.