48 results about "Session Description Protocol" patented technology

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may obtain a data channel establishment request comprising session description protocol (SDP) information corresponding to a multimedia call session between a first user equipment (UE) and a second UE, the SDP information including a data channel application identifier corresponding to a data channel application. The first network node may provide, to a second network node, a data channel service request that indicates the data channel application identifier. The first network node may obtain, from the second network node, a service response comprising a data channel control policy associated with the data channel application identifier and may allocate, based at least in part on the data channel control policy, media resources corresponding to at least one application data channel. Numerous other aspects are described.

The invention discloses a channel negotiation method and device based on relay proxy and a storage medium, and relates to the technical field of telecommunication, and the method comprises the steps: requesting a relay server to obtain a relay proxy address, packaging the relay proxy address into a candidate address of a session description protocol, and sending the candidate address to a called terminal through the relay server, analyzing a private network address in response information fed back by the called terminal, initiating a binding request to the private network address of the called terminal, and if the binding request does not establish connection with the called terminal, sending a penetration request to a specified port of the relay server, and establishing a bidirectional network address channel with the called terminal through the penetration request forwarded by the relay server and a binding request initiated by the called terminal to the relay proxy address. According to the invention, the channel between the calling end and the called end is established through the relay proxy address of the relay server and the penetration request, so that the flexibility of media stream transmission is improved.

In an example embodiment of present disclosure, a method and apparatus to exchange an SSRC value between a client and a server for implicit floor requests are disclosed. In an embodiment, the exchange of the SSRC value between the client and the server for implicit floor requests is being done with Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of Session Description Protocol (SDP). In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of SDP. In an embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit / Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in SSRC and FMTP media attribute of SDP.

Provided in the present disclosure are a voice call establishment method and apparatus, and a device and a storage medium. The method comprises: on the basis of first information, a first communication device determining whether to enable a routing optimization function; and when it is determined that the routing optimization function is to be enabled, negotiating with a second communication device to establish call routing between a calling terminal and a called terminal, wherein the first information comprises one or more of the following: first access network information of the calling terminal, second access network information of the called terminal, and a result of session description protocol (SDP) negotiation between the calling terminal and the called terminal.

The embodiment of the invention discloses a data processing method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a network address translation type, a power consumption level and network topology information of network equipment when a registration request of the network equipment is received, and carrying out the registration of the network equipment according to the network address translation type, the power consumption level and the network topology information, generating equipment associated information; when a connection request of a client is received, analyzing a target device identifier in the connection request, and determining a target network device corresponding to the target device identifier and pre-stored device association information; and determining an adaptive point-to-point transmission strategy according to the equipment association information, and establishing point-to-point direct connection between the target network equipment and the client based on the determined point-to-point transmission strategy and an interactive enhanced session description protocol between the target network equipment and the client, and the scheme can provide a hole digging success rate.

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.

To provide systems and methods for rendering an immersive three-dimensional group session.SOLUTION: A scene graph is signaled through a session description protocol (SDP) during a session initiation protocol (SIP) session setup. The scene graph includes respective graphical output nodes assigned to be controlled by a plurality of participant computing devices in an immersive three-dimensional group session.SELECTED DRAWING: Figure 4

An example method includes transmitting or receiving a session description protocol (SDP) message, the session description protocol (SDP) message including binding information associating a first RTP header extension and a second RTP header extension of an RTP session, where the binding information indicates a first timestamp in the first RTP header extension and the first timestamp in the second RTP header extension, both indicate a time to transmit a first RTP packet including the first RTP header extension. The method comprises: transmitting, by a first device, the first RTP packet; and receiving, by the first device, a second RTP packet, the second RTP packet comprising the second RTP header extension, the second RTP header extension comprising the first timestamp, a second timestamp, and a third timestamp. The method includes determining a delay based on at least one of the first timestamp, the second timestamp, or the third timestamp.

A method and apparatus for signaling multiple audio mixing gains using a single Real-Time Transport Protocol (RTP) header extension in a teleconference is provided. The method includes: receiving an input audio stream from a 360-degree video / audio stream, the input audio stream including multiple mixing gains from the input audio stream and an overlay audio stream; declaring a single RTP header extension for all mixing gains (including one or more of an element identifier, a length of the extension element, and a magnitude of the mixing gain); and signaling the mixing gains using the single RTP header extension. The single RTP header extension can use a one-byte header extension format or a two-byte header extension format, and the one-byte header extension format or the two-byte header extension format is declared using the Session Description Protocol (SDP).

Aspects of the subject disclosure may include, for example, a method that includes receiving, by a processing system in communication with a client device, a signal from the client device according to a session description protocol (SDP); the signal comprises a capability parameter regarding streaming of video frames to the client device, a first focus area parameter and a second focus area parameter indicating respectively a first resolution for a high focus area and a second resolution for a low focus area of the video frame, a bandwidth parameter indicating a bandwidth availability for a streaming video session, and a streaming method parameter regarding the streaming of the video frames. The system calculates the high focus area and the low focus area of the video frame, and delivers, subsequent to receiving the signal, a plurality of video frames to the client device. Other embodiments are disclosed.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by an IMS (Internet Multimedia Subsystem) AS (Application Server) in a wireless communication system, the method comprising: receiving a first message including a first SDP (Session Description Protocol) offer for a first media from a first user equipment (UE) from a first UE; transmitting a second message for notifying a media change request event to a data channel signaling function (DCSF) entity; receiving a third message including avatar media processing information from the DCSF entity; and transmitting a fourth message including a second SDP offer for a second media from a network entity to a second UE.

Aspects of the subject disclosure may include, for example, a method that includes receiving, by a processing system in communication with a client device, a signal from the client device according to a session description protocol (SDP); the signal comprises a capability parameter regarding streaming of video frames to the client device, a first focus area parameter and a second focus area parameter indicating respectively a first resolution for a high focus area and a second resolution for a low focus area of the video frame, a bandwidth parameter indicating a bandwidth availability for a streaming video session, and a streaming method parameter regarding the streaming of the video frames. The system calculates the high focus area and the low focus area of the video frame, and delivers, subsequent to receiving the signal, a plurality of video frames to the client device. Other embodiments are disclosed.

The invention relates to the technical field of digital information transmission, in particular to a media stream transmission method and device and a storage medium, and the method comprises the steps: obtaining first session description protocol SDP information sent by a request sending end, and judging whether a client media stream needs to pass through a server; if yes, the server serves as a back-to-back user agent; if not, the server inserts a first candidate address and a second candidate address of the server type into the first SDP information and the second SDP information; the request sending end and the request response end carry out ICE connectivity check based on all candidate addresses of the two parties; adding the candidate address pairs which are not forwarded by the server into a first set, and adding the candidate address pairs which are not forwarded by the server into a second set; selecting the candidate address pair with the shortest round-trip delay from the first set to carry out media stream transmission; and when the network transmission quality is lower than a preset level, other candidate address pairs are selected to carry out media stream transmission. According to the method, the media transmission proxy method with the most economical transmission can be intelligently selected.

A method and device for signaling multiple audio mixing gains in a teleconference using a single Real-time Transport Protocol (RTP) header extension is provided. The method includes receiving an input audio stream from a 360-degree video / audio stream that includes multiple mixing gains from the input audio stream and overlay audio stream, declaring a single RTP header extension (including one or more of an element identifier, a length of an extension element, and a magnitude of the mixing gains) for all the mixing gains, and signaling the mixing gains using the single RTP header extension. The single RTP header extension may use a one-byte or two-byte header extension format which is declared using a Session Description Protocol (SDP).

Aspects of the disclosure provide a method and apparatus, computer readable medium for media session management in wireless communication. The method includes obtaining session description protocol (SDP) information within a session initiation protocol (SIP) payload associated with a media session, a media session management module of a VAL server sending a network resource request including the SDP information to a network resource management (NRM) server. The NRM server can be a service enabler architecture layer (SEAL) server. The network resource request can request network resources. The method further includes the VAL server receiving an evaluation of the network resource request from the NRM server. Based on the received evaluation, establishing or terminating the media session in the media session management module of the VAL server.

A device receives a Session Initiation Protocol (SIP) message containing a Session Description Protocol (SDP) offer for a communications session from a first endpoint. The SDP offer includes a first parameter indicating whether the communications session will include media encoding TTY data, audio data, or both TTY data and audio data. The device reads the first parameter and sends an SDP answer including a second parameter indicating whether the device is configured to process media encoding TTY data, audio data, or both TTY data and audio data.

Methods, systems, and devices for wireless communication are described. For example, the described techniques provide a first wearable device and a second wearable device to initiate a media session with a user equipment (UE) and a terminal device. Wearable devices may each initiate a session flow by sending a session description protocol (SDP) provision message to a terminal device. In some examples, the wearable device may send capability information to the UE, and the UE may send an SDP provision message to the terminal device. The terminal device may start a session by sending one or more SDP acknowledgement messages after receiving the one or more SDP provision messages. The wearable devices may each send information about a user of the wearable device. The terminal device may generate a media content stream, and the UE may propagate the media content stream to the wearable device.

The invention belongs to the field of streaming media transmission and audio processing, and discloses an RTSP protocol-based audio stream processing method and a related device, and the method comprises the steps: receiving an audio stream playing request sent by a client; an RTSP GET command is sent to the voiceprint equipment; wherein the RTSP GET command is used for verifying whether a voiceprint device supports RTSP protocol stream taking or not; sending the abstract authentication request to the voiceprint equipment, and receiving session description protocol information returned by the voiceprint equipment; an RTSP SETUP command is sent to the voiceprint device; the RTSP SETUP command is used for specifying a transmission parameter of the audio stream; receiving, analyzing and recombining an RTP audio data packet sent by the voiceprint equipment to obtain an audio stream in a preset format; pushing the audio stream in the preset format to the client; according to the method, the compatibility and deployment efficiency of multi-manufacturer equipment are effectively improved, the data transmission safety is guaranteed, and the method is suitable for the high-reliability audio stream processing requirement of an electric power inspection scene.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for operation of a first device in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: negotiating a media parameter with a second device by using a session description protocol (SDP); transmitting, to the second device, first real-time transport protocol (RTP) data including a first extension header associated with a round-trip time (RTT); and in response to the first RTP data, receiving, from the second device, second RTP data including a second extension header associated with the RTT, wherein the SDP for the negotiation for the media parameter includes information for associating the first extension header with the second extension header.

An example apparatus for communicating media data includes a memory configured to store media data; and a processing system comprising one or more processors implemented in a circuit, the processing system configured to: receive a session description protocol (SDP) message, the session description protocol (SDP) message comprising configuration information representing at least one of a protocol data unit (PDU) set flag or an end of burst (EoB) flag for a communication session; transmitting information representing a PDU set flag or an EoB flag for the communication session to a real-time communication (RTC) application function; and processing media data of the communication session, the media data including at least one of a PDU set having a PDU set tag or an EoB having an EoB tag according to the configuration information.

Aspects of the disclosure provide a method and a vertical application layer (VAL) server for a media session management in wireless communication. The method includes obtaining session description protocol (SDP) information within a session initiation protocol (SIP) payload associated with a media session and sending a network resource request comprising the SDP information, by a processing circuitry of a media session management module of the VAL server, to a network resource management (NRM) server. The NRM server can be a service enabler architecture layer (SEAL) server. The network resource request can request a network resource. The method further includes receiving, by the VAL server, an evaluation for the network resource request from the NRM server. The media session can be established or terminated based on the received evaluation in the media session management module of the VAL server.

The invention discloses a communication method and device, network side equipment and a readable storage medium, and belongs to the technical field of communication, and the communication method comprises the steps that a first network node receives a first message, and the first message is used for requesting to call a second terminal; under the condition that a first condition is met, the first network node executes a first operation, and the first condition comprises any one of the following items: the first terminal accesses a network through a first satellite, and the first message comprises at least one of first indication information and a first SDP (Session Description Protocol) offer; the first indication information indicates at least one of the following items: the first terminal supports an early media, the first terminal supports an early session, and the first SDP offer is used for negotiating parameters corresponding to transmission of the early media; the first message comprises at least one of first indication information and a first SDP buffer; the first operation comprises at least one of the following items: deleting first indication information from the first message; modifying the first indication information; and deleting the first SDP offer from the first message.

A system for an automated generation of a target device fingerprint including a processor of a device fingerprint generation server node configured to host an encryption module and connected to at least one signal daemon node and to a target device and a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to: detect a connection request between the target device and the at least one signal daemon; parse out a session description protocol (SDP) associated with the connection request to derive immutable dynamic SDP attributes; acquire target device attributes; generate a target device fingerprint by combining the immutable dynamic SDP attributes and the target device attributes; and encrypt the target device fingerprint by an encryption key generated from at least one of the immutable dynamic SDP attributes.

Embodiments of the present disclosure relate to a solution for a session description protocol (SDP) message associated with data channel streams. In an aspect, a first terminal device generates, an SDP message comprising a first media-level attribute or an option of a second media-level attribute. The first media-level attribute or the option is used for identifying a data channel stream within a session description. The SDP message further comprises a session-level attribute for grouping together different data channel streams or grouping together at least one data channel stream and at least one media stream. The first terminal device transmits the SDP message to a second terminal device via one or more network devices. The embodiments of the present disclosure can express a particular relationship between media stream and data channel SCTP stream, or between different data channel SCTP streams.

The present disclosure relates to the technical field of wireless communications, and in particular to a session processing method and apparatus, an electronic device, and a computer program product. The method comprises: receiving a response to a first session modification request, wherein the response to the first session modification request comprises a first session description protocol answer (SDP answer), and the first SDP answer comprises a media description of an IMS data channel; and upon determining that the media description of the IMS data channel contains media parameters that are not allowed by a network, initiating a second session modification request, wherein the second session modification request comprises a first SDP offer, and the first SDP offer comprises the media description of the IMS data channel.

The invention provides an image transmission method between security inspection equipment and a security and protection integrated platform, which is applied to the technical field of computers, and comprises the following steps: when a session description request sent by the security and protection integrated platform based on a real-time streaming protocol (RTSP) is received, sending SDP description information in a session description protocol (SDP) to the security and protection integrated platform, the field value of the media type in the SDP description information comprises a first field value used for representing the image stream, and the field value of the load name in the SDP description information comprises a second field value used for representing that the transmitted image stream is the security check image stream; receiving a stream transmission request sent by the security and protection integrated platform; and based on the stream transmission request, sending a security inspection image stream to the security and protection integrated platform through a real-time transport protocol RTP. According to the invention, the transmission efficiency of the security check image stream can be improved.

A method performed by a user equipment (UE) includes sending, toward a terminating UE, a session description protocol (SDP) offer including information about application data channel(s) (ADC(s)) to be established for use by data channel (DC) application(s) within an internet protocol (IP) multimedia subsystem (IMS) session. The method includes receiving, from the terminating UE, an SDP answer including an SDP attribute associated with a DC application of the DC application(s), the SDP attribute including a status of the DC application at the terminating UE. The method includes determining the DC application is not available at the terminating UE based on the status of the DC application indicated by the SDP attribute. And the method includes waiting a time before resending or receiving a new SDP offer including the information about the ADC(s) to be established. FIG. 4

In embodiment of present disclosure, a method and apparatus to exchange an SSRC value between a client and a server for implicit floor requests are disclosed. In one embodiment, the exchange of the SSRC value between the client and the server for implicit floor requests is being done with Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of Session Description Protocol (SDP). In another embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in FMTP media attribute of SDP. In another embodiment, exchange of the SSRC value between the client and the server for implicit floor requests is being done with Implicit / Explicit Grant Support during a Multi-Talker MCPTT call where the SSRC sharing in SSRC and FMTP media attribute of SDP.

The present invention relates to improving the security environment in IP networks and some standardized protocol relevant to the establishment of multimedia sessions by an artificial intelligence (AI) technology. The first aspect of the present invention is to reinforce the security level on the meeting contents that may be shared among or between the meeting participants by using the AI technology. The second aspect of the present invention is to overcome a session establishment failure due to at least one item included in the session description protocol (SDP) when setting up a multimedia session between at least two terminals by using the AI technology. And the third aspect of the present invention is to introduce a new parameter to improve the max-forward function of the session initiation protocol (SIP), which can be viewed as de facto standard in audio or video teleconferencing in IP networks.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transfer rates. According to an embodiment of the present disclosure, a method performed by a second terminal in a wireless communication system comprises the steps of: obtaining a session description protocol (SDP) offer for a bootstrap data channel related to a first terminal and an SDP offer for an application data channel, wherein the SDP offer includes application binding information related to a data channel application; identifying, on the basis of the application binding information, whether the data channel application is available in the second terminal; if the data channel application is not available in the second terminal, establishing a connection of a bootstrap data channel session between the second terminal and a media function (MF); and downloading the data channel application on the basis of the connection of the bootstrap data channel session.