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IMS registration management

A cellular network and user equipment technology, which is applied in the field of controlling the use of voice service data paths by client equipment, and can solve problems such as inability to connect to data services, missed calls, etc.

Active Publication Date: 2020-09-04
BRITISH TELECOMM PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can be confusing for users as the phone shows a strong WLAN connection (usually via an icon with various horizontal bars to indicate signal strength), but cannot connect to data services and may miss incoming calls

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach -e

[0031] First implementation - ePDG detects certain types of failures with its Internet link

[0032] System overview

[0033] 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:

[0034] · Long Term Evolution (LTE) cellular network3 infrastructure;

[0035] · Non-cellular network infrastructure5; and

[0036] • IP Multimedia Subsystem (IMS) 7 .

[0037]The LTE cellular network 3 provides data and voice services to cellular network client devices called user entities (UEs) 9, such as mobile phones, using a packet-switched IP network. The LTE cellular network 3 comprises a network core called Evolved Packet Core (EPC) 11 and a radio access network (E-UTRAN) formed by eNodeB 13 for connecting services and resources in EPC 11 to UE 9 . EPC 11 contains standard control functions at the core of LTE network 3 , such as Multimedia Mobile Entity (MME) 27 , Home Subscriber ...

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PUM

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Abstract

In a LTE network, user devices can access voice application service via Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi). To detect faults in the data link associated with an evolved packet data gateway for providing access by the user device to the LTE network from a non-trusted network which will affect VoWiFi capability, a packet data gateway monitors the status of ePDG and if a fault is detected, the user device is notified that it should connect to voice services via VoLTE.

Description

technical field [0001] The present invention relates to the management of wireless communication services, and in particular to methods and apparatus for controlling the use of voice service data paths by client devices. Background technique [0002] A cellular data network provides data connectivity to mobile devices having a cellular network interface. The network is formed by a network core for handling control plane functions and data packet routing, and a radio access network (RAN), usually macrocell base stations located throughout the coverage area of ​​the mobile network, for wireless communication with subscriber mobile devices, The RAN. 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 a fully packet-switched data network that does not support traditiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/12H04W36/00
CPCH04W36/12H04W36/1446H04W36/00226H04L65/1016H04L65/102H04L65/1073H04W36/385H04W88/06H04W88/16H04L65/1104
Inventor M·奎瓦斯·拉米雷斯
Owner BRITISH TELECOMM PLC