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Assisted handover to volte in case of vowifi failure

A technology connected to mobile devices, applied in electrical components, wireless communication, connection management, etc., can solve problems such as data service disconnection and user confusion

Active Publication Date: 2018-08-31
BRITISH TELECOMM PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can lead to user confusion, as the phone shows a strong WLAN connection (often with an icon with various bars to indicate signal strength), but data service is not connected

Method used

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  • Assisted handover to volte in case of vowifi failure
  • Assisted handover to volte in case of vowifi failure
  • Assisted handover to volte in case of vowifi failure

Examples

Experimental program
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Embodiment Construction

[0028] System overview

[0029] figure 1 An overview of main components in the communication system 1 according to the first embodiment is shown. System 1 has several functional subsystems:

[0030] Long Term Evolution (LTE) cellular network3 infrastructure;

[0031] Non-cellular network infrastructure5 including local networks and Internet Service Provider (ISP) infrastructure; and

[0032] IP Multimedia Subsystem (IMS)7.

[0033] In contrast to older circuit-switched networks, LTE cellular networks 3 provide data and voice services to cellular network client devices called user entities (UEs), such as mobile phones 9, using packet-switched IP networks. The LTE cellular network comprises a network core 11 and a radio access network formed by eNodeBs 13 for connecting services and resources in the network core 11 to UE 9 . The network core 11 contains standard control functions such as a Multimedia Mobile Entity (MME) (not shown), a Home Subscriber Server (HSS) (not show...

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PUM

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Abstract

A VoWiFi service monitor monitors the logical data path to the ePDG of a MNO as an indication of whether VoWiFi service is possible for subscribers of the MNO network. Due to the standard configuration of UEs in preferring WLAN connectivity over LTE cellular connectivity, if the VoWiFi service is unavailable the UEs will not automatically switch to VoLTE while a WLAN connection is available between the UE and a hub. When a change in the status of an ePDG is detected, the VoWiFi service monitor informs any connected hubs. The hubs receive notifications from the VoWiFi service monitor and for each notification determine whether the ePDG status change affects one or more of the VoWiFi capable UEs connected to the hub. If at least one such device is affected by the change, the hub notifies theaffected UE with instructions to handover from VoWiFi to VoLTE.

Description

technical field [0001] The present invention relates to managing wireless communication services, and more particularly to methods and devices for controlling device handover between WLAN and cellular service access. Background technique [0002] A cellular data network provides data connectivity to mobile devices that have a cellular network interface. The network consists of a network core that handles control plane functions and data packet routing, and a radio access network (RAN) of macrocell base stations located throughout the coverage area of ​​the mobile network for wireless communication with user mobile devices. An example of a cellular network architecture is Long Term Evolution (LTE). Unlike previous generations of second-generation (2G) and third-generation (3G) cellular networks that provided packet-switched data services on a circuit-switched voice platform, LTE is an all-packet-switched data network architecture that does not support traditional voice call ...

Claims

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Application Information

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IPC IPC(8): H04W36/16H04W36/14H04W76/10H04W24/04H04W36/00
CPCH04W24/04H04W36/16H04W76/16H04W36/1446H04W36/14
Inventor R·布朗A·戈麦斯
Owner BRITISH TELECOMM PLC