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10 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

Vehicle-mounted positioning system of lithium-manganese battery and positioning device of vehicle-mounted positioning system

The utility model provides a lithium manganese dioxide battery vehicle-mounted positioning system and a positioning device thereof, comprising a lithium manganese dioxide battery, the lithium manganese dioxide battery has two output ends, the first output end is connected with an LDO chip, and the second output end is connected with a BOOST boost chip; the LDO chip is provided with a plurality of output ends, and is connected with an MCU microcontroller and a GNSS chip through a first VCC interface; the BOOST chip is connected with a communication module through a second VCC interface; a Boost-EN pin which is connected to the BOOST chip is distributed on the MCU microcontroller, and a GPS (Global Positioning System)-EN pin which is connected to a VCC (Voice Call Continuity) interface of the GNSS chip is distributed on the MCU microcontroller. The vehicle-mounted positioning system of the lithium-manganese battery does not need to be externally connected with any power supply, and the purpose of long-time working can be achieved through an ultra-low power consumption mode.
Owner:DEMING COMM SHANGHAI CO LTD

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

Voice call continuity improvements from WLAN to wwan

Certain aspects of the present disclosure provide techniques for improving voice call continuity from a wireless local area network (WLAN) to a wireless wide area network (WWAN). An example method performed by a user equipment (UE) includes performing, while a session is active on a first radio access technology (RAT) network, reselection to a second RAT network from a third RAT network, performing a handover to the second RAT network, after detecting a condition impacting the session on the first RAT network, and resuming the session on the second RAT network.
Owner:QUALCOMM INC

Special bearing processing method and device and readable medium

The invention provides a dedicated bearer processing method. The method comprises the following steps: receiving a deactivated user plane connection message sent by an AMF (Access and Mobility Management Function) entity; and notifying a policy control function (PCF), a user plane function (UPF) and the AMF to delete a dedicated bearer and a tunnel for transmitting data under the condition that a user plane connection activation message sent by the AMF is not received within a preset duration. In the idle state of the mobile terminal, the N3 tunnel and the voice dedicated bearer are deleted in a delayed manner, so that voice call drop can be prevented, the voice call continuity is improved, and the resource consumption of a core network is reduced. The invention further provides a special bearing processing device and a readable medium.
Owner:ZTE CORP

Communication processing method and device, equipment, chip and medium

The invention provides a communication processing method and device, equipment, a chip and a medium, and the method comprises the steps: executing SRVCC (Single Radio Voice Call Continuity) switching which is used for maintaining a service, obtaining first data information of the service under the condition that the SRVCC switching is not completed, determining second data information according to the first data information, and transmitting the second data information to a server; and playing the second data information. Therefore, optimization processing can be carried out on the data information received before SRVCC switching is completed, and the data information obtained through optimization processing is played in time, so that the service continuity is effectively ensured, and the service quality is improved.
Owner:BEIJING X RING TECHNOLOGY CO LTD

Move to WIFI voice preemption for single-radio voice call continuity to improve voice / video call quality

A configuration is disclosed that enables a UE to preempt SRVCC by triggering a handover to a Wi-Fi network. The apparatus determines whether it is feasible for a Wi-Fi cell to be a first target cell among a plurality of target cells that serves the UE to continue active transmission on the Wi-Fi cell. The apparatus extends the TTT timer length at least in part based on the determination that it is feasible for the Wi-Fi cell to be a target cell that serves the UE to continue active transmission on the Wi-Fi cell. The apparatus initiates a handover from a first network to the Wi-Fi cell before the TTT timer expires and before the first network initiates a handover to a second target cell among the plurality of target cells on a second network.
Owner:QUALCOMM INC