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5 results about "Voice call continuity" patented technology

The 3GPP has defined the Voice Call Continuity (VCC) specifications in order to describe how a voice call can be persisted, as a mobile phone moves between circuit switched and packet switched radio domains (3GPP TS 23.206).

Communication processing method, apparatus, device, chip and medium

ActiveCN120730254BCommmunication supplementary servicesEngineeringVoice call continuity
The present disclosure provides a communication processing method, device, equipment, chip and medium, wherein the communication processing method comprises: performing single radio voice call continuity (SRVCC) switching, wherein the SRVCC switching is used to maintain a service; obtaining first data information of the service in a case where the SRVCC switching is not completed; determining second data information according to the first data information; and playing the second data information. Thus, the data information received before the SRVCC switching is completed can be processed optimally, and the data information obtained by the optimal processing can be played in time, thereby effectively ensuring the continuity of the service and improving the service quality.
Owner:BEIJING X RING TECHNOLOGY CO LTD

Voice call continuity in Voice-over-Wi-Fi and evolved packet system fallback

A user equipment (UE) in a mobile network is configured to establish a first packet data network (PDN) connection between the UE and an Internet Protocol Multimedia Service (IMS) network of the mobile network via a wireless local area network (WLAN) access point. The first PDN connection is for implementing a voice call. The UE determines that at least one of the UE or the mobile network fails to support Voice over New Radio (VoNR). Responsive to determining that at least one of the UE or the mobile network fails to support Voice over New Radio (VoNR), the UE prevents itself from establishing a connection with a first radio access network (RAN) of the mobile network.
Owner:GOOGLE LLC

Evolved packet system fallback handling

Systems and methods are provided for optimizing evolved packet system (EPS) fallback handling in telecommunication networks. The system ensures voice call continuity during transitions from 5G to 4G when data session setup is delayed or fails. It detects EPS fallback at an IP multimedia subsystem (IMS) session management function (SMF), receives a context request from an access and mobility management function (AMF), and sends an IMS context response with an EPS fallback flag. The AMF forwards the request to both IMS and data SMFs, prioritizing the IMS response. If the data response is not received within a set time, the AMF uses the IMS context alone and forwards it to the mobility management entity (MME), which prioritizes IMS setup.
Owner:T MOBILE INNOVATIONS LLC

Communication method and device, electronic equipment and storage medium

The invention provides a communication method and device, electronic equipment and a storage medium, and relates to the technical field of communication. The method comprises the following steps: after a terminal device detects a voice access switching event between a cellular network and a WiFi network, counting network switching information in a preset time window; if the network switching information meets the preset frequent switching condition, detecting whether network connection state information of the terminal equipment is changed or not; in response to the fact that the network connection state information does not change, determining that an IMS re-registration request is not initiated; and in response to the change of the network state information, determining to initiate an IMS re-registration request. According to the method, an intelligent registration decision-making mechanism based on the network switching information and the network connection state information can be introduced to the terminal equipment side, unnecessary IMS signaling overhead is reduced, load pressure on core network elements such as UDM is reduced, and voice call continuity and network stability are improved.
Owner:CHINA TELECOM CORP LTD TECHNOLOGY INNOVATION CENTER +1