US Patent Application 18027616. Network System and Terminal Device simplified abstract

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Network System and Terminal Device

Organization Name

Huawei Technologies Co., Ltd.==Inventor(s)==

[[Category:Wei Huang of Shanghai (CN)]]

Network System and Terminal Device - A simplified explanation of the abstract

This abstract first appeared for US patent application 18027616 titled 'Network System and Terminal Device

Simplified Explanation

This patent application describes a network system and terminal device that support voice calls over a 5G network. Here are the key points:

  • The network system includes a 5G access network (NG-RAN) and a terminal device (UE) that connects to the NG-RAN.
  • The UE is able to measure the quality of a long term evolution (LTE) cell when making or receiving an IP multimedia subsystem (IMS) voice call request.
  • The NG-RAN can decide whether to switch the IMS voice call from the 5G network to a 4G network, based on its configuration.
  • If the NG-RAN determines that fallback to the 4G network is necessary, it sends a measurement request message to the UE.
  • In response to the measurement request message, the UE reports a measurement report to the NG-RAN, based on the LTE cell measurement result.
  • This system allows for seamless switching between 5G and 4G networks during IMS voice calls, ensuring a smooth user experience.


Original Abstract Submitted

A network system and a terminal device are provided. The network system includes a 5G access network NG-RAN and a terminal device UE that camps on the NG-RAN. The UE is configured to measure a long term evolution LTE cell when initiating an IP multimedia subsystem IMS voice call request or receiving an IMS voice call request. The NG-RAN is configured to determine, according to configuration of the NG-RAN, whether to enable IMS voice to fall back to a 4G network from a 5G network, and to send a measurement request message to the UE when determining fallback of the IMS voice to the 4G network. The UE is further configured to: in response to the measurement request message, report to the NG-RAN a measurement report based on a measurement result of the LTE cell measurement.