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63 results about "IP Multimedia Subsystem" patented technology

The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit-switched-style network, rather than strictly over an IP packet-switched network. Alternative methods of delivering voice (VoIP) or other multimedia services have become available on smartphones, but they have not become standardized across the industry. IMS is an architectural framework to provide such standardization.

Third-party registration processing method based on IP multimedia subsystem network

InactiveCN101110833AAvoid data inconsistenciesHandle exceptions efficientlyTransmissionRegistration statusThird party
The present invention discloses a third party registration processing method based on the IMS network, which comprises that a UE completes the registration on a S-CSCF entity; the S-CSCF entity starts a waiting timer; the UE and a P-CSCF entity initiate and complete a registration status subscribing respectively to the S-CSCF entity; the S-CSCF entity initiate a third party registration to an AS when the waiting time of the waiting timer is enough. Through the present invention, the S-CSCF entity performs a waiting after the UE is successfully registered, to make the subscribing success of the registration status of the P-CSCF and the UE take precedence over the third party registration and avoid the situation of conflicting data of the UE, the P-CSCF, the S-CSCF and an HSS, to make the UE, the P-CSCF and the S-CSCF effectively process the abnormal circumstance occurred when the third party registration fails.
Owner:ZTE CORP

NFC encrypted IMS server security data exchange method

The invention belongs to the technical field of communication, and particularly relates to an NFC (Near Field Communication) encrypted IMS (IP Multimedia Subsystem) server security data exchange method, which comprises the following steps of: in response to a near field communication connection event, acquiring an original service data message of service equipment to be opened and physical environment data monitored when the event occurs, forming a seed data set, executing Hash operation to generate an initial data fingerprint, and sending the initial data fingerprint to a server; and generating a symmetric session key through a key derivation algorithm by combining a device identifier in the original service data message, so as to encrypt the original service data message, packaging an encrypted data packet and the initial data fingerprint into a transmission data packet, sending the transmission data packet to an IMS server, reconstructing the session key by the server based on expected service parameters stored locally, and sending the session key to the IMS server. According to the method, decryption verification of the encrypted data packet is carried out, and service opening is executed after the verification is passed, so that deep binding of an encryption process and data integrity verification is realized, and the security of data exchange and the system processing efficiency are improved.
Owner:SHANXI ELECTRIC POWER CO POWER COMM CENT

Method and apparatus of ai model descriptions for media services

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. In accordance with an embodiment of the disclosure, a method for transmitting artificial intelligence (AI) model data via an IP multimedia subsystem (IMS) is provided. The method comprises transmitting to a user equipment (UE) a session description protocol (SDP) offer message comprising a first attribute indicating at least one AI model; receiving from the UE a SDP answer message comprising the first attribute; and transmitting to the UE AI model data based on the first attribute, wherein the first attribute comprises at least a set of parameters corresponding to the at least one AI model, and wherein the set of parameters comprises a first parameter indicating whether the at least one AI model is a partial AI model or not.
Owner:SAMSUNG ELECTRONICS CO LTD

Communication method and device

The invention discloses a communication method and a communication device, which are used for avoiding the phenomenon that a terminal crashes or falls back in the processing process of an IMS (IP Multimedia Subsystem) service. The communication method comprises the following steps: in a process that a first terminal device requests an IMS service, a first network element determines a network type of a first mobile communication network accessed by the first terminal device, namely a first network type, of a target mobile communication network accessed by the first terminal device; the first network element sends a first message to the second network element, the first message being used for instructing the first terminal device to request the IMS service, and the first message comprising the first network type; the second network element sends a second message to a fourth network element, wherein the second message is used for requesting identity information of the first terminal equipment; the second network element receives a third message from a fourth network element, wherein the third message comprises identity information; and the second network element executes the IMS service requested by the first terminal device according to the identity information of the first terminal device.
Owner:HUAWEI TECH CO LTD

Methods and systems for authentication over a data channel

Systems, methods and devices are provided for receiving, by a wireless device, an authentication request via an IP multimedia subsystem data channel (IMS DC), in response to receiving the authentication request, generating, by the wireless device, an authentication response and transmitting, by the wireless device, the authentication response using the IMS DC.
Owner:T MOBILE INNOVATIONS LLC

IMS pseudo-registration

A user equipment (UE) can attempt to register with an IP Multimedia Subsystem (IMS) that includes Call Session Control Functions (CSCFs), such as a Proxy CSCF (P-CSCF), an Interrogating CSCF (I-CSCF), and a Serving CSCF (S-CSCF). In situations in which IMS registration procedures may otherwise fail for the UE, due to an unreachable I-CSCF and / or S-CSCF, a P-CSCF can pseudo-register the UE with the IMS by informing the UE that the UE is registered with the IMS. If the UE attempts to initiate a service via the IMS while being pseudo-registered with the IMS, the P-CSCF can instruct other IMS elements to accept the UE and provide the service to the UE even though the UE is not fully registered with the IMS.
Owner:T MOBILE US INC

Nano ceramic material preparation method and system for multi-robot intelligent cooperative scheduling

The invention provides a nano ceramic material preparation method and system for multi-robot intelligent cooperative scheduling. The method comprises the steps that S1, initialization self-inspection is conducted on multiple robots participating in preparation; s2, receiving a production order containing formula information, and extracting key parameters from the generated order; generating a task chain composed of a plurality of associated tasks based on a nano ceramic preparation process sequence; s3, storing the task chain into a priority queue; the exclusive mechanical arm executes operation according to the task parameters; s4, uploading the task ID, the process parameters and the sensor data to an IMS (IP Multimedia Subsystem) in real time; dynamically optimizing the parameters of the next process by adopting a machine learning algorithm based on the real-time data of the current process to form a data closed loop; s5, updating the prediction model based on historical data; dynamically adjusting a task priority rule; and S6, triggering the next task until all tasks are completed. And through multi-robot cooperation and intelligent scheduling, the idle time of equipment is shortened, and the overall production efficiency is improved.
Owner:SHENZHEN SHENGDIAN NEW MATERIALS CO LTD

Resource release method and device, electronic equipment and storage medium

The invention provides a resource release method and apparatus, an electronic device and a storage medium, and when user equipment successfully cancels registration to a 5G core network and cancels registration to an IP multimedia subsystem abnormally, a first registration request is sent to the 5G core network, so that the 5G core network reallocates a second IP address to the user equipment. And sending a second registration request at least carrying the second IP address and the first IP address involved in the registration cancelling abnormity to the IP multimedia subsystem, so that the IP multimedia subsystem releases the resource of the first IP address and establishes the resource of the second IP address according to the second registration request, problems of IP address conflict and unrecovered resources caused by registration cancelling abnormity are avoided, and stable operation of communication service is ensured.
Owner:ASIAINFO TECH CHINA INC

Signaling distribution method and system based on communication capability open platform

The invention discloses a signaling distribution method and system based on a communication capability open platform, and the system comprises the steps: a signaling distribution gateway northbound as a signaling entrance is responsible for receiving a call signaling from an IMS (IP Multimedia Subsystem), and the call signaling is sent to a corresponding capability center according to an SC field in the call signaling and an SC configuration list preset by the capability distribution gateway in a memory; calling signaling information is recorded to the cache middleware; the capability center is configured with at least one capability center set, receives the call signaling from the signaling distribution gateway, calls a service query interface of the capability distribution gateway to query service information, processes the service information and sends the call signaling back to the signaling distribution gateway; the capability distribution gateway northward serves as a service entry to provide capability for a third-party service party to call, and the capability distribution gateway southward serves as a query entry to provide data for the capability center to carry out next call processing; and the cache middleware records the call signaling received by the signaling distribution gateway and carries out failed routing processing. According to the invention, decoupling of signaling distribution and processing functions is realized.
Owner:FUJIAN FUJITSU COMM SOFTWARE CO LTD

A communication method and device based on a star-ground fusion network, and a storage medium

The present disclosure provides a method, device, apparatus and storage medium based on a star-ground fusion network to solve the problem of large transmission delay of service data. The method comprises: receiving a registration request sent by a user equipment (UE), wherein the registration request comprises first information, and the first information is used to indicate that the UE supports on-satellite data channel capability; and sending a registration response to the UE, wherein the registration response comprises second information, and the second information is used to indicate that an IP multimedia subsystem (IMS) network supports on-satellite data channel capability.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Communication method and apparatus based on determining proxy call network elements

Example communication methods and apparatuses are provided. One example method includes receiving, by a session management network element, first information from user equipment, where the first information indicates a target IP multimedia subsystem (IMS) network to which the user equipment requests to connect, the target IMS network is one of a plurality of IMS networks, and the target IMS network is provided by a target service provider. The session management network element determines first call information based on the first information, where the first call information indicates a target proxy call network element, and the first call information is for establishing a connection between the user equipment and the target IMS network. The session management network element sends the first call information to the user equipment.
Owner:HUAWEI TECH CO LTD

IMS registration method and device, electronic equipment and storage medium

The invention relates to an IMS (IP Multimedia Subsystem) registration method and device, electronic equipment and a storage medium, and the IMS registration method comprises the steps: determining a second PCSCF (Proxy Call Session Control Function) network address based on a pre-recorded PCSCF network address set in response to the fact that a terminal fails to establish a TCP (Transmission Control Protocol) connection based on a first PCSCF network address allocated by network equipment, pCSCF network addresses corresponding to one or more operator networks are recorded in the PCSCF network address set, and the first PCSCF network address and the second PCSCF network address belong to the same operator network; and based on the second PCSCF network address, TCP connection with the network equipment is re-established, so that IMS registration of an internet protocol multimedia subsystem is completed. According to the method and the device, the TCP connection is reestablished by using the pre-recorded PCSCF network address set, and the success rate of completing IMS registration is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Enhancement of core network security for illegitimate devices

The present teachings disclose a system and method for accessing a cellular network system including: checking, at a Serving Call Session Control Function (SCSCF), legitimacy of an International Mobile Equipment Identity (IMEI) included in an registration request with an Equipment Identity Register (EIR) check; determining a SCSCF action based on a response code of an EIR response from the EIR check; and performing the SCSCF action, wherein the registration request comprises an IP Multimedia Subsystem (IMS) REGISTER.
Owner:BOOST SUBSCRIBERCO LLC

Voice quality detection method and device, electronic equipment and storage medium

This application relates to the field of communication network operation and maintenance, and provides a method, apparatus, electronic device, and storage medium for voice quality testing. The method includes: constructing a hybrid test path, wherein the hybrid test path includes at least one simulated network element and at least one existing network element, wherein the at least one simulated network element belongs to the core network domain and / or the IP Multimedia Subsystem (IMS) domain; performing end-to-end VoNR (Voice over Radio) service testing on the hybrid test path and recording the test results; and determining the faulty network element based on the hybrid test path and the test results. This method achieves accurate and efficient location of faulty network elements for VoNR voice services.
Owner:CHINA MOBILE COMM GRP CO LTD

IP multimedia subsystem (IMS) originated branded calling

The disclosed technology relates to branding a voice call. A telecommunications system including a telephony application server (TAS) of an IP Multimedia Subsystem (IMS) can receive an indication of a voice call initiated at an originating endpoint device for a terminating endpoint device. The system detects that the originating endpoint device has a branding service subscription and identifies a profile for the subscription stored at a profile application server. The profile can include branding information for the originating endpoint device. The system can cause the terminating endpoint device to present the branding information upon receipt of the voice call.
Owner:T MOBILE US INC

Techniques for sharing protocol data unit sessions between multiple subscriber services

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, via a first subscriber service, at least one protocol data unit (PDU) session. The UE may receive a first internet protocol (IP) address associated with the first subscriber service. The UE may register the first subscriber service with an IP multimedia subsystem (IMS) network using the first IP address. The UE may register a second subscriber service with the IMS network using a second IP address, wherein the second subscriber service uses the at least one PDU session of the first subscriber service. Numerous other aspects are described.
Owner:QUALCOMM INC

An IMS, method, related equipment, storage medium and computer program product supporting metaverse services

An embodiment of the present application provides an IP Multimedia Subsystem (IMS), method, related equipment, storage medium and computer program product supporting metaverse services. The IMS includes a first network function, a second network function, a third network function and a fourth network function; wherein the first network function is at least used to manage the mapping relationship between the location information of the user equipment (UE) and the digital twin object; the second network function is at least used to manage the metaverse service and the digital twin application; the third network function is at least used to associate and coordinate one or more UE-related data streams; the fourth network function is at least used to coordinate the multimedia content of multiple metaverse services, that is, the embodiment of the present application can add different network functions to the IMS, so that direct support for mobile metaverse services can be achieved based on the newly added network functions.
Owner:CHINA MOBILE COMM LTD RES INST +1

Wireless communication method, wireless communication system, electronic device, storage medium and program product

The invention provides a wireless call method, a wireless call system, electronic equipment, a storage medium and a program product, relates to the technical field of wireless communication, and is used for enabling a calling party to directly access a core network through a wireless network to establish a call between the calling party and a called party. The method comprises the following steps: in response to a call request of a first mobile subscriber identification code to a second mobile subscriber identification code, requesting a session token from a server; the session token comprises a session identifier; in response to the received session token returned by the server, sending a first session signaling to the server; the first session signaling comprises a session token, a first mobile user identification code and a second mobile user identification code; the first session signaling is used for indicating the server to verify the session initiation authority of the first mobile subscriber identification code according to the session token, and sending a second session signaling to an IMS (IP Multimedia Subsystem) deployed in a core network; the second session signaling is used for indicating the centralized IMS to establish a session between the first mobile user identification code and the second mobile user identification code.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Configuration method for bearer service, and system

Disclosed in the present application are a configuration method for a bearer service, and a system. The method comprises: a first base station receiving a first core network message from a core network, or receiving a first inter-station message from a second base station, wherein the first core network message or the first inter-station message includes at least one of the following: restrictions on emergency service support by one or more radio access technologies, whether a cell allows an IP multimedia subsystem (IMS) emergency bearer service to be used for a reduced capability (RedCap) terminal, and whether the cell allows the IMS emergency bearer service to be used for an enhanced reduced capability (eRedCap) terminal. The present application solves the technical problem of an existing 3GPP Rel-18 protocol not being possible to meet the requirements of emergency call requests for RedCap terminals and ordinary terminals.
Owner:CHINA TELECOM INTELLIGENT NETWORK TECHNOLOGY CO LTD

System for solving problem that public network mobile phone service cannot be segmented based on private network IMS (IP Multimedia Subsystem)

The invention relates to the technical field of communication, in particular to a system for solving the problem that a public network mobile phone service cannot be segmented based on a private network IMS system. The system comprises a server, an SIP relay gateway, an IMS system, a physical isolation gateway module, a plurality of office communication terminals and a plurality of exclusive SIM card communication terminals. The server is used for being connected with the communication network, receiving the calling signal output by the communication network user terminal and outputting the calling signal to the communication network user terminal; the relay gateway is used for being in communication connection with a server; the IMS system is used for being in communication connection with the relay gateway, and the IMS system synchronously sends a call to the office communication terminal and the exclusive SIM card communication terminal by adopting a group vibration mode during incoming call; the physical isolation gateway module is in communication connection with a communication network and is used for receiving a calling signal provided by the exclusive SIM card communication terminal to a mobile phone of a communication network user through the communication network; the office communication terminal is in communication connection with the IMS system and the physical isolation gateway module; and each office communication terminal is bound with one exclusive SIM card communication terminal.
Owner:ANKANG HONGTIAN SCI & TECH DEV CO LTD

Call pushing method, system, platform, internet, medium and program product

The invention provides a call pushing method, system and platform, an internet, a medium and a program product, relates to the technical field of communication, and is used for improving the user experience of a called terminal. The method comprises the following steps: a unified push platform in an IP multimedia subsystem (IMS) network receives a call request forwarded by a network element in the IMS network when a forwarding condition is satisfied; the forwarding condition is that a called terminal of the call request is determined to be in an off-line state; and determining a channel pushing strategy of the call request, and sending the channel pushing strategy of the call request to the Internet, so that the Internet matches a corresponding pushing channel according to the channel pushing strategy, and pushes the call request to the called terminal through the matched pushing channel.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD +1

A multi-scene video conference security access method for IMS switching network

The application provides a video conference security access method for IMS switching network in multiple scenes, comprising the following steps: step 1, an intelligent communication service platform is constructed based on an IP multimedia subsystem (IMS) ICT and IoT fusion architecture; step 2, an IP multimedia subsystem (IMS) network audio security access mechanism based on speech recognition (STT) and text-to-speech (TTS) is established in the intelligent communication service platform; and step 3, an IP multimedia subsystem (IMS) network image recognition mechanism based on deep learning is established in the platform. The application effectively improves the accessibility, security and user experience of the video conference and voice communication system, and realizes the security recognition function of the audio. The IP multimedia subsystem (IMS) network image recognition mechanism based on deep learning can effectively and securely recognize the accessed image.
Owner:STATE GRID GRID GANSU ELECTRIC POWER CO QINGYANG POWER SUPPLY CO

Communication system including plurality of subscriber identification modules and operating method thereof

PendingUS20260189612A1Communications systemEngineering
An IP multimedia subsystem (IMS) server may include a memory and a processor (including one or more processors), wherein the processor: receives, from an electronic device which includes a first subscriber identification module for storing first subscriber identification information and a second subscriber identification module for storing second subscriber identification information, a message that requests IP multimedia subsystem (IMS) registration of the electronic device; proceeds with IMS registration for the second subscriber identification module of the electronic device on the basis of the second subscriber identification information included in the message; on the basis of receiving, from an external electronic device, a request for a call to the electronic device, makes a call connection request to the electronic device by using the second subscriber identification module; on the basis that a call connection request time for the electronic device exceeds a specified level, transmits, to the external electronic device, a message indicating that the electronic device is on a call; receives, from the electronic device, a message including information on a start time and an end time of a call using the first subscriber identification module; and on the basis of the received message, identifies whether there has been a call connection request using the second subscriber identification module between the start time and the end time of the call using the first subscriber identification module.
Owner:SAMSUNG ELECTRONICS CO LTD

Split rendered media delivery based on IP multimedia subsystem (IMS) data channel

PCT designated stageWO2026033427A1TransmissionMediaFLOUser equipment
A method performed by a client on a user equipment is provided. The method includes sending, to an Internet Protocol (IP) multimedia subsystem (IMS), a request for information for data channel (DC) media. The method includes receiving the information for the DC media, wherein the information indicates the DC media is capable of being split rendered. And the method includes initiating, based on the information for the DC media that indicates the DC media is capable of being split rendered, one or more operations of a procedure to establish a split rendering session over a standalone IMS DC session.
Owner:NOKIA TECHNOLOGIES OY

Method and device for recovering call service in a mobile communication system

A method and a device for recovering a call service in a mobile communication system are provided. The method includes the following steps determining whether a second cell satisfies a condition for a terminal to perform an IP multimedia subsystem (IMS) registration when detecting that the terminal enters the second cell during a period in which the terminal waits for a next IMS registration due to an IMS registration failure in a first cell, initiating an initial IMS registration when determining that the second cell satisfies the condition, and recovering a call service of the terminal after the initial IMS registration is successful.
Owner:SAMSUNG ELECTRONICS CO LTD

Methods, devices, and computer program products for wireless communication

PendingCN122295914AUser equipmentData store
A wireless communication method is disclosed. The method includes: a unified data storage unit receiving IP Multimedia Subsystem (IMS) information for a user equipment (UE), and the unified data storage unit storing the received IMS information.
Owner:ZTE CORP

Multi-party call method, device, system and user equipment

The invention relates to a multi-party call method, device and system and user equipment, and relates to the technical field of communication. The multi-party call method is executed by first user equipment, and comprises the following steps: interaction with second user equipment participating in a multi-party call is carried out through an application program installed on the first user equipment, the second user equipment is provided with the application program, the multi-party call is carried out based on an IP multimedia subsystem IMS, and a server of the application program participates in the multi-party call.
Owner:CHINA TELECOM CORP LTD TECHNOLOGY INNOVATION CENTER +1

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

Screening calls natively in an IP multimedia subsystem network

A system of a telecommunications network that uses IP Multimedia Subsystem (IMS) network elements to screen inbound calls. A Media Resource Function (MRF) intercepts an inbound call and uses various techniques to screen the call. The MRF redirects the call to an interactive voice response (IVR) system, which prompts the caller to state the caller's name, records the caller's response, and relays it to the called subscriber, who can then decide to accept or reject the call. The system can present a random number challenge to the caller. The system can use machine learning analytics and a large language model (LLM) to analyze the response's contents, accepting the call only if it relates to a topic allowed by the subscriber, perform audio analysis to determine whether the caller sounds robotic, or detect whether the response contains other known robocall markers.
Owner:T MOBILE US INC

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