55 results about "Port Control Protocol" patented technology

A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other to form a conference. Each node having a video display with a display layout, at least one of the nodes individually controlling at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A method for providing a teleconference including the steps of forming a conference with a plurality of nodes in communication with each other through a network. Each node having a video display with a display layout. There is the step of controlling individually with at least one of the nodes at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A teleconferencing node. A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other through the network to form a conference. Each node communicating only a change to the other nodes when the change occurs. A method for conducting a telecommunications conference between at least three parties includes the steps of establishing a conference between the party. There is the step of making a change to the conference. There is the step of communicating only the change to the parties.

The present invention provides a system and a method for improving the voice quality of wireless-to-wireless calls. More specifically, the invention provides a method and an apparatus to add supplemental information for better error detection and correction of data packets. This feature allows the identification of the telecommunication link causing errors in the data packets and optimizes the use of the reconstructed data packets.

The invention relates to a control protocol and a corresponding remote video monitoring system, wherein, the control protocol uses a TCP way for transmission in an IP network, and controls the protocol content to adopt an XML pattern; the remote video monitoring system consists of a monitoring front-end (1), a signaling cut-in server(21), a central server (22), a medium cut-in server, a monitoring client end (3), and an IP network, and the control protocol is adopted in the monitoring of the front-end register and the information signaling transmission. The information transmission of the control protocol is instantaneous, and is realized simply and is convenient to be extended, the corresponding remote video monitoring system has the advantages that the signaling-control information response speed is rapid, at the same time, the networking is convenient, the extending is easy, and the load sharing is achieved, thereby increasing the system function.

Systems and methods for ensuring that control protocols can be used between Media Gateways 130, 140 and Media Gateway Controllers 110 that reside on separate IP networks 120, 150. Network Address Translation (NAT) is strategically implemented to inspect and translate control protocol messages exchanged between nodes on separate IP networks. One method is to add NAT intelligence to a firewall / router 160 giving it the ability to inspect and translate the IP addresses within control protocol messages. Another method is to have a firewall / router 160 forward control protocol messages to a separate NAT server 170 to inspect and translate the IP addresses within control protocol messages. The former implementation places a significant amount of real-time work on the firewall / router which can affect its performance in its core duties. The latter implementation does not affect performance but requires deploying additional hardware.

A packet structure and a packet transmission method of a network control protocol. A user in the inside or outside of the house can effectively control various home appliances such as refrigerator or laundry machine or monitor operation state of the devices, over the living network such as RS-485 network, low-power RF network, and power line network so that the user can enjoy the remote control and the convenient monitoring. In addition, the packet structure for the inter-layer interface of the network control protocol can be managed. The packet structure at the application layer is generated by assigning one of an application layer protocol data unit header, a request message, a response message, and an event message, together with an application layer protocol data unit header The generated packet at the application layer is transmitted to thus interface layers of the network control protocol. Therefore, the packet structure at the application layer can be more efficiently managed and transmitted.

In the invention, radio network controller (RNC) sends message of load control protocol and message of call control protocol to media gateway (MGW). MGW own processes the message of load control protocol, and MGW transmits the received message of call control protocol to a mobile switching center server (MSC) to process. MSC_Server configures MGW as a signaling transit point (STP) to reach RNC. Thus, message of call control protocol is sent to MGW first, and then is transmitted to RNC. The invention provides a method for RNC of R99 to switch in WCDMA R4 network seamless so as to utilize current network equipment fully. The invention makes current network equipment upgrade to R4 network smoothly so as to save investment.

The invention relates to a method for implementing the control protocol of the random and periodical media access of a radio network, comprising the following steps: step 1, after network initialization, each SU synchronously and periodically repeats one work period Tpointed by OP-MAC; step 2, in the OP-MAC work period, each SU monitors signal paths in the network firstly; step 3, each SU respectively reports the results of the monitored signal channels so that all SU in the network can share the monitored information of idle signal channels; step 4, SU competition is carried out, and available idle signal channels are reserved; and step 5, each SU which succeeds in the competition in the transmission reservation stage transmits data. The network capability of the OP-MAC protocol of the invention in the cognitive radio network is obviously superior to CO-MAC and R-MAC.

The system comprises following pats. (1) Through Internet connected media gateway controller (MGC) and media gateway (MG). (2) Customer station set connected to media gateway. (3) Located between MGC and MG, media gateway control protocol application layer gateway (MGCP ALG) capable of carrying conversion of network address based on MGCP protocol. (4) Signaling interaction between MGC and MG is carried out through MGCP protocol; data exchange of voice media flow between MGs is carried out through RTP / RTCP protocol; MG connected to MGCP ALG is utilized to collocate IP address of private network. The scheme solves issue that current network consumes too many IP addresses of public network. Meanwhile, effect of MGCP ALG firewall avoids MG suffering attack from Internet directly.

A data communication apparatus, comprising: a first control unit for controlling a client trying to access in order to establish a session by a call control protocol, for data communication by a data communication protocol that is other than said call control protocol; an IP address acquiring unit for acquiring an IP address of said client from the data of said call control protocol; and a second control unit for rejecting data communication from a client, which IP address is other than said acquired IP address, while and after said session is established.

A method of transmitting data packets, in particular a real-time or near-real-time data over an internet protocol (IP) network using a real-time protocol (RTP) for media data packets and a real-time control protocol (RTCP) for control data packets. Each protocol is allocated a fraction of the available transmission bandwidth. The method comprises the steps of determining the needed RTCP bandwidth based on known link parameters for an individual media session, transmitting control data packets using the needed RTCP bandwidth and transmitting media data packets using the remainder of the available bandwidth.

A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other to form a conference. Each node having a video display with a display layout, at least one of the nodes individually controlling at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A method for providing a teleconference including the steps of forming a conference with a plurality of nodes in communication with each other through a network. Each node having a video display with a display layout. There is the step of controlling individually with at least one of the nodes at least partially the display layout of each node in the conference with a specific format able to be unique for each node. A teleconferencing node. A teleconferencing system includes a network. The system includes a plurality of nodes in communication with each other through the network to form a conference. Each node communicating only a change to the other nodes when the change occurs. A method for conducting a telecommunications conference between at least three parties includes the steps of establishing a conference between the party. There is the step of making a change to the conference. There is the step of communicating only the change to the parties.

The embodiment of the invention provides a method for rapidly recovering a port control protocol, which comprises the following steps that: a backup primary control program (PCP) server notifies a user to switch a PCP server; and the backup PCP server receives a Token sent by the user and generates new mapping information according to the received Token. According to the technical scheme provided by the embodiment of the invention, the Token is used to validate the identity validity of the user while the rapid PCP recovery is carried out, so that a main backup PCP server can complete the rapid switching safely and reliably; and the communication service of the user can be guaranteed to carry out normally.

A scheme for using a virtual UNI (user network interface) to allow standards-based signaling protocols (e.g., Q.2931) to be used to manage the addition and deletion of AAL2 channel identifiers (CIDS) associated with sub-multiplexed AAL2 common part sub-layer cells is described herein. An ATM node is configured to dynamically establish ATM adaptation layer 2 (AAL2) channel identifiers (CIDS) on a call-by-call basis using standards-based call control signaling protocols mapping CIDs to a virtual path / virtual channel (VP / VC) within an ATM standard call control protocol.

The invention discloses a method and system for acquiring and processing a multiplexing address and a port range. The method comprises the following steps: a client side at a user side sends a port acquiring request to a server side at a network side through a PCP-PR (Port Control Protocol-Port Range); the server side selects the port range which is allocated to the client side for use from a port address pool, wherein the port address pool comprises ports which are not distributed yet; and the server side returns a port acquiring response message to the client side through the PCP-PR, records a current port allocation entry in a local state table, updates the port address pool and deletes the port range from the port address pool, wherein the port acquiring response message comprises an IPv4 (Internet Protocol Version 4) multiplexing address and the port range, and the current allocation entry comprises corresponding relationship information of an IPv6 (Internet Protocol Version 6) address, the IPv4 multiplexing address and the port range. The method and system disclosed by the embodiment of the invention can ensure that the available port range and the multiplexing address can be acquired at the user side.

Disclosed is a method for achieving a signaling process of a high speed fax supported by gateway control protocols, wherein MGCP protocol mutual information and control fax operation are adopted at soft switch and the gateway, and both T.38 and VBD fax mode can be compatible at one time, in which T.38 mode is preferably selected and then VBD fax mode; two gateways of the soft switch control fax transmission terminal and receiving terminal confer on fax modes and fax media channel information; voice communication state is switched back or call is released directly without switching back to voice communication state according to working state of switching set by soft switch, after the fax is finished. The gateway in accordance with the present invention adopts MGCP protocols, such as IAD. Said method can dynamically assign IP addresses, port numbers and coding modes of fax medias and can achieve mutual fax of different plants and different operators when being carried out over the whole net; concision, clarity, high efficiency and reliability of signaling process adds little mutual information to a voice calling and can support crossing-soft switch fax services, with excellent feasibility of implementation.

Embodiments of the invention provide a management method of public network address resource, a terminal control protocol server and a client. The method comprises: sending detection information from a PCP server to a PCP client, wherein the detection information is constructed by the PCP server based on PCP for requesting the PCP client to return response information; judging whether the response information of the PCP clinent is received in a scheduled time; and if the response information of the PCP clinent is not received in a scheduled time, recovering the public network address resource distributed for the PCP client. The method in the embodiments enables the PCP server to actively detect a work state of the PCP client, and to timely recover the public network address resource of a abnormal PCP client, thereby reducing waste of the public network address resource.

A sound transmission method based on transmitting control protocol, setup at least two connections of the transmitting control protocol between the sound send end and the receive end for the sound connection which based on the transmitting control protocol, and sends the message with sound data assign to every connection of the transmitting protocol according to rules; the receive end get the data wraps from every transmitting control protocol, keep and reorder them in the buffer to get the message list which same as the send end; the sound coding system of the receive end get and decode data from the buffer according to the scheduled period. The invention can overcome the shortage, and improve the reliability and practicability of the transmitting sound by TCP (transfer control protocol) connection and the quality of the voice.

The invention is directed to providing a centralized synchronization method for redundant network elements and is particularly advantageous to routers providing network address translation (NAT) services requiring static port forwarding provisioning. Synchronization is provided by a network management system which can handle one or more backup routers or other network elements using a control protocol different from the control protocol used by the active router.

The invention discloses a method for discovering an Ethernet operation and maintenance (OAM) link, which comprises the following steps: introducing an RxRmtId filter field in a resolution state machine for checking legal OAM protocol data unit (OAMPDU) frame; when the identification information of the OAMPDU frame and the counter point switching equipment identifier of the RxRmtId are not same, checking the existence of the counter point switching equipment identifier of the RxRmtId, in the case of existence, initializing; otherwise, judging that the counter point switching equipment identifier of the RxRmtId is a dynamic identifier or a stationary identifier, in the case of a stationary identifier, generating an occupation failure log or alarm and discarding the OAMPDU frame participating in occupation; and in the case of a dynamic identifier, searching whether the daemon timer is effective. The method can reliably realize point-to-point Ethernet OAM discovery in a point-to-multipoint environment which does not support multi-point control protocol (MPCP) or a point-to-point environment with illegally accessed equipment, so as to improve the security and robustness of Ethernet OAM discovery.

The invention discloses a method and monitoring equipment for realizing association of a calling control protocol and a media control protocol. the method comprises a calling process performed by soft exchanging equipment of a NGN network aiming at public switched telephone network (PSTN) equipment; when determining the used circuit identifying code in the current calling process does not determine the calling association relation, according to the time interval of calling process message interaction carried out by the PSTN equipment and the soft equipment before the current calling process and during the calling process using the circuit identifying code, a destination node identifier is determined in each destination node identifier which is not determined the calling association relation; the destination identifier and the circuit identifying code are determined to form the calling association relation when the destination node identifier is judged to be associated with the media gateway control protocol events; the invention automatically studies the corresponding relation of CIC and TID under the condition that SS does not provide the corresponding relation of CIC and TID to a monitoring system, thus improving monitoring performance.

In various examples there is a telecommunications network access point of a telecommunications network in which the control plane is implemented using a data center comprising a plurality of interconnected computation nodes. The access point comprises a memory holding a log of encapsulated control messages the control messages being messages of a control protocol of the telecommunications network. The access point has a processor configured, for a control message to be sent by the access point to a node in the data center, to: generate a message identifier; encapsulate the control message in a packet of a communications protocol of the data center, add the message identifier to a header of the encapsulated control message; send the encapsulated control message to the node of the data center; and store a record of the encapsulated control message and node of the control plane in the log.

The invention discloses a method and a device for completing network address translation keep-alive by adopting the port control protocol. A port control protocol (PCP) client is used to acquire an internal address and a port of a user device and send a PCP request carrying the internal address and the port of the user device to a port control protocol (PCP) server, and the PCP server is used to send a keep-alive request carrying the internal address and the port of the user device to a network address translation (NAT) device. According to the invention, the port control protocol (PCP) is adopted, so the communication of the user device and the network on an air interface can be reduced, so that the battery loss of the user device that consumed in the NAT keep-alive process can be reduced.

The embodiment of the present invention discloses a processing method and a device for a state control protocol based on an ARM architecture, wherein the method includes: the sender adds a keyword to the original valid data; packages the valid data containing the keyword to obtain The packaged valid data; the packaged valid data is sent to the receiver; the receiver extracts the valid data from the packaged valid data to obtain the original valid data. In the embodiment of the present invention, a number of keywords are added to the communication data stream to support variable length of the data, and the encoding and decoding of the protocol are separated at the software layer, which greatly improves the scalability; the physical layer of the protocol transmission is shielded, It can be applied to different embedded platforms and different hardware interfaces, realizing the consistency of the later protocol; it solves the problems of difficult state synchronization, small amount of communication data, hardware and firmware upgrade, etc., which improves the maintainability; so that users do not need to care about the underlying sequence The simplified encoding and decoding process can save time.

The present invention discloses a data processing method for network layer in a home network system based on a living network control protocol. The data processing method for network layer based on a protocol, that is composed of at least a physical layer, a data link layer, a network and an application layer, includes the steps of: receiving a message ending primitive (MsgSend) in application layer protocol data unit (APDU) from the application layer; according to the message sending primitive (MsgSend), generating a communication cycle description; according to the message sending primitive (MsgSend) and / or the communication cycle description, generating a packet sending primitive (PktSend) in network layer protocol data unit (NPDU); and transmitting the packet sending primitive (PktSend) to the data link layer.

The invention discloses a method, a system and a device for controlling the address mapping state of equipment. Main technical scheme is that: the method comprises the following steps that: the equipment with a port control protocol (PCP) server function receives a first PCP request message which is transmitted through a PCP client in a network address translation (NAT) Pinhole creation stage from first equipment, and determines second equipment indicated by second equipment indication information in the first PCP request message; and the equipment establishes an address mapping state corresponding to the second equipment, and sets the life time of the established address mapping state to be equal to that of an address mapping state which corresponds to the first equipment and is established according to the first PCP request message. According to the technical scheme, the life time of the address mapping state corresponding to the second equipment can be set to be equal to that of the address mapping state corresponding to the first equipment, so that the problem of connection interruption caused by the release of the address mapping state of a party in a communication session is solved, and the interruption rate of the communication session is lowered.

Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for utilizing a control protocol to establish multiple packet data network (PDN) connections through a trusted wide area network (TWAN). Techniques are provided for expanding mobile network capacity by offloading traffic from wireless wide area networks (WWAN) to other types of networks, including wireless local area networks (WLAN).

Provided are a modem dialling method and a wideband device. The method comprises: a wideband device receiving a first link control protocol (LCP) request message of a wireless network-side device; processing an extensible authentication protocol (EAP) authentication field of the first LCP request message into an authentication field supported by a dialling terminal; sending the processed first LCP request message to the dialling terminal; receiving a first LCP response message returned by the dialling terminal; processing the authentication field of the first LCP response message into an authentication field supported by the wireless network-side device; sending the processed first LCP response message to the wireless network-side device; and acquiring an Internet protocol (IP) address from the wireless network-side device, and sending the IP address to the dialling terminal, so that the dialling terminal can use the existing protocol to communicate with an eHRPD network.

The application discloses a method and a device for allocating and mapping a public network address and a network system, relates to the technical field of communication, and aims to solve the problem that an existing PCP (Port Control Protocol) server cannot allocate public network address information to a PCP client in a multi-export-link scene. The method comprises the following steps that: a PCP server receives a first PCP request message sent by the PCP client, wherein source address information of the first PCP request message is private network address information of the PCP client; the PCP server allocates M pieces of public network address information to the PCP client according to the first PCP request message, wherein M is less than or equal to N and more than or equal to 2, N is the quantity of network exits included in the PCP server, and the M pieces of public network address information corresponds to M network exits of the PCP server one by one; and the PCP server records corresponding relationships between the private network address information and the M pieces of public network address information.