51 results about "Connection-oriented communication" patented technology

A Private Network-Network Interface (PNNI) network including interconnected nodes is defined as a single rerouting domain (“global domain”) and the global domain is further defined by multiple divided domains (“local domains”). Each of the local domains is defined to include multiple nodes that are included in the network. Connection recovery and path optimization in the global domain (the entire PNNI network) are performed in accordance with a global rerouting protocol. The global rerouting protocol is a modification of the standard Domain-Based Rerouting (DBR) protocol, by adding information elements of domain identifier, rerouting for the global domain. The DBR protocol does not support the connection recovery from a link failure between local domains (“inter-domains”) and the global path optimization. The global rerouting method is capable of connection recovery and path optimization outside of any rerouting local domains. The global rerouting provides double fault recovery within the rerouting domain (“intra-domain”) as covered by the DBR and outside of the domains (“inter-domain”) or when the initial fault recovery within the domain has failed. Also, the global rerouting method provides maximum path optimization across all domains and within the rerouting local domain.

In some embodiments of the invention, an 802.11-enabled device may fragment an 802.11 packet into smaller packets and transmit the smaller packets instead of the 802.11 to lessen interference with Bluetooth synchronized connection-oriented communication of a collocated or nearby Bluetooth-enabled device.

An ultrasound information processing system comprises a plurality of ultrasound devices coupled to a high-speed serial ultrasound information bus, wherein each ultrasound device comprises a program for communicating with other ultrasound devices according to an ultrasound information exchange protocol (UIEP). The UIEP is a lightweight, connection-oriented protocol adapted to efficiently transfer ultrasound information among different devices on the ultrasound information bus. Each ultrasound device comprises an application layer program for performing an ultrasound function, as well as a lower protocol layer program for receiving and sending data across the ultrasound information bus according to a high-speed serial bus standard that provides both isochronous and asynchronous data delivery. The ultrasound information exchange protocol (UIEP) program is adapted to receive a communication request from the application layer, open a connection-oriented communication session with the requested ultrasound device, and transfer ultrasound information through the lower protocol layer and across the ultrasound information bus to the requested device. Advantageously, any ultrasound device manufacturer provided with the UIEP program may readily generate application layer code capable of communicating with other manufacturers' ultrasound devices across the ultrasound information bus, without requiring specific knowledge of the internal structure of the other manufacturers' devices or of the specific frame / packet structure of the UIEP / lower layer protocols themselves.

The invention discloses a long-connection management device and a method for managing the link resources of long-connection communication, belonging to the technical field of wireless link resource management. The method comprises the following steps: establishing a corresponding connection pool by the long-connection management device through taking (domain name / IP address: port) as keywords according to the historic records of HTTP communication, and configuring the numbers of idle long connection and busy long connection in the connection pool by accessing the frequency of a WAP (wireless application protocol) website identified by (domain name / IP address: port); when a link between a WAP gateway and the WAP website needs to be established, looking up a corresponding connection pool according to the (domain name / IP address: port) of an access request, in case of finding a corresponding connection pool, allocating an idle long connection to the access request in the connection pool, and notifying an HTTP module of using the allocated idle long connection to establish a link so as to carry out HTTP communication with the WAP website identified by the (domain name / IP address: port).

<heading lvl="0">Abstract of Disclosure< / heading> The object of the present invention is accommodating local connectionless information (data that is immediately transferred without establishing a path to a receive side), such as LAN data in a local area network, by an asynchronous transfer mode (ATM) network using a connection-oriented communication system (which makes data transfers after verifying that a path to the receive side has been established), thereby performing efficient, fast routing of connectionless information. A connectionless communication system of the present invention is equipped with connectionless information cell assembly / disassembly means (30) for bi-directional conversion between variable-length connectionless information and fixed-length connectionless cells, routing control means (31) for analyzing a destination address of information in connectionless cells and controlling the routing of the connectionless cells; and an ATM network (32) for connecting the connectionless information cell assembly / disassembly means (30) and the routing control means (31) by a permanent virtual channel serving as a fixed path and connecting the routing control means together by a virtual channel serving as a semi-fixed path, whereby connectionless information is segmented into connectionless cells and the connectionless information is exchanged within the ATM network in connectionless cell units.

A network includes Internet protocol (IP) terminals for establishing communication using an initiation protocol used in connection-oriented communication in which connection to a destination is confirmed over an IP network for the communication; and a server apparatus constituting the network along with the IP terminals. The server apparatus includes a detecting unit for detecting a speech quality between the IP terminals; a calculating unit for calculating an optimal speech quality based on the detected speech quality information; and a notifying unit for notifying the IP terminals establishing communication of the calculated optimal speech quality. The IP terminals establish communication with the speech quality being set to the optimal speech quality, which the server apparatus notifies to the IP terminals.

The invention discloses a safety intelligent lock system and an unlocking and locking control method. The safety intelligent lock system comprises a lock, a key, a portable electronic device and a remote main station, wherein the portable electronic device is in communication connection with the remote main station, the key is connected with the portable electronic device in a Bluetooth communication manner, the key is in communication connection with the lock, and the portable electronic device is provided with a Bluetooth module. Through the connection communication among the lock, the key, the portable electronic device and the remote main station, the unlocking action and locking action as well as a series of information verification before the unlocking are realized so as to guarantee safe unlocking. The key is small in size, the cost is low, intelligence, convenience in operation, safety and reliability can be achieved, and the unlocking by mistake can be prevented; meanwhile, by adopting the general control and information storage function of a communication network and the main station, the information of unlocking and locking such as an operation target, an operator, a target state, operation time and the like can be effectively recorded and managed, so that the management system in the electric power field can be completed.

A scalable protection method for connection oriented networks includes a source, a destination, and primary nodes interconnected by working path segments between the source and destination. A point-to-multipoint connection with multiple destinations and additional primary nodes is also supported. Each of a number of backup nodes is interconnected with an associated primary node by pre-provisioned shunt segments, and the backup nodes are interconnected among themselves by pre-provisioned protection path segments. Upon occurrence of a failure, the primary node upstream of the failure directs input traffic to a shunt segment, and the backup node associated with the upstream primary node directs traffic from the shunt segment to an output protection segment. Downstream of the failure, a backup node directs traffic from an input protection segment to a shunt segment, and the primary node associated with the backup node directs the traffic from the shunt segment to a downstream working segment. In this manner, traffic is routed around failures via local switching operations.

The same label value is assigned to all links configuring a connection in a network where an LSP (Label switched Path) is identified based on a label. Even when any one of nodes included in the connection is shortcut due to a change of route of the connection, a neighboring node to this shortcut node in the transmitting direction can receive, from a neighboring node to the shortcut node in the receiving direction, a packet having the same label value as a label value received from the LSR.

The invention discloses an intelligent door lock system based on a pattern code and an Internet. The intelligent door lock system comprises a door lock control module, a controller, a consumption intelligent handheld terminal and a cloud management platform, wherein the door lock control module is arranged in a house door lock and is in communication connection with the controller via a ZIGBEE communication way; the controller is arranged near the door lock control module, and is in connection communication with a cloud business management platform rand a cloud equipment management control platform via Internet of Things; the consumption intelligent handheld terminal is in communication connection with the cloud management platform; the cloud management platform is respectively in communication connection with the consumption intelligent handheld terminal and the controller. The intelligent door lock system has the advantages that the unique pattern code is produced, a key which can be used as the self key to complete entry and can also be authorized to other persons to be used as the key of the door lock for entry can be produced, the communication route is shortened, the cost is reduced, and the door lock is conveniently and remotely operated and controlled.

The invention provides a method for direct-connect communication between terminals in a wireless network communication system. The method comprises the steps that a server assigns direct-connect communication resources to the authorized terminals in a direct-connect communication scenario; direct-connect communication is performed between terminals and terminals by the terminals in a terminal group according to the assigned direct-connect communication resources; partial terminals with capacity of establishing a bidirectional link with a base station in the terminal group can feed back measurement statistical information to the server; and resource assignment is adjusted by the server according to the back-fed direct-connect communication measurement statistical information and the current system state. According to the method for direct-connect communication between the terminals in the wireless network communication system, power consumption of connection-oriented communication process is avoided; a time division multiplexing mode is adopted and the method is compatible with existing wireless communication systems; meanwhile, system time slot resources used by direct-connect communication between the terminals are configured by the set server, and time slot resource allocation can be adjusted by the server according to the measurement statistical information so that utilization rate of the system resources is enhanced.

The present invention discloses a method for reducing transmission power at a user side in a dual / multiple-connection wireless communication system, wherein: according to a type of a channel and / or data transmitted in the channel, setting a primary priority for the channel; according to a base station corresponding to the channel and / or a link connected to the base station, setting a secondary priority for the channels having the same primary priority; and when the entire transmission power of the user apparatus exceeds maximum transmission power allowed by the user apparatus, according to the primary priority and the secondary priority, reducing the transmission power for parts of or all of the channels.

In a radiocommunication system a first network element supports connection-oriented communication and is identified by a first address in a first format. A second network element supports connectionless communication and is identified by a second address in a second format. A network transmission unit and a data bank are also part of the radiocommunication system. To establish a connection between the first network element and the second network element, a connection-oriented link is set up between the network transmission unit and the second network element. Addresses in the first format are converted into the second format with the aid of the data bank.

A system for communication over the internet and through a firewall utilizing a single communications protocol. A simple object access communications protocol (SOAP) is utilized. This protocol is an XML / HTTP based protocol for sending messages from one object to another across the internet in a platform independent manner. This type of protocol can be utilized to control network elements provided at various locations.

A sending computer system can identify one or more available network resources at one or more network computers by sending a request for services using SOAP over UDP. In particular, the sending computer system prepares a SOAP message that includes a request for available resources. The sending computer system then encapsulates the SOAP message into a user datagram, and sends the user datagram to one or more identifiable computer systems on the network. In one implementation, the sending computer system sends the user datagram to a multi-cast URI. The receiving computer system receives the message through UDP, unpacks the message, and responds to the SOAP message request. Accordingly, the sending computer system can query multiple computer systems in an efficient manner without necessarily incurring the overhead otherwise associated with connection-oriented communication.

Apparatus and method are provided for dynamically establishing lawful interception taps within connection-oriented communication networks. Taps are established automatically upon establishment of a main connection by embedding collection identifier information within connection setup messages as a new form of information element. The collection identifier information includes information enabling a tap function within an interception node to establish a connection, such as an SPVC or an SVC, to a monitoring station. The collection identifier information may include any of a forward direction ATM address, a backward direction ATM address for use in bi-directional communications, a forward direction end point and a backward direction end point for use in establishing SPVC tap connections, and a connection identifier for use in establishing SVC tap connections. Tap connections can be established either during or after establishment of the main connection.

The invention discloses a near field communication method of non-contact radio frequency identification devices for solving the technical problem of convenience of communication of a plurality of hand-held non-contact radio frequency identification devices. The method comprises the following steps of: making one to one connection-oriented communication by the hand-held non-contact radio frequency identification device A according to a communication ID index table of other non-contact radio frequency identification devices, or utilizing a non-connection-oriented communication mode for sending device settings command subsets, tag read and write command subsets or device status query command subsets; and waiting for serial commands thereof and data sent by other non-contact radio frequency identification devices by the hand-held non-contact radio frequency identification device A when the communication is completed. Compared with the prior art, when the hand-held non-contact radio frequency identification device carries out point to point data exchange with another similar device and carries out data broadcasting with a plurality of devices, the invention has high efficiency, is safe, and expands application flexibility of near field communication of the non-contact radio frequency identification devices.

An IP connection system for establishing communication between each of IP connection terminals assigned with a global IP address on every connection to an internet, in which a global IP address (GA-GD) is registered to the directory service server (4) corresponding to the calling code (YA-YD) of the IP connection terminal (3A-3D) as a receiving side when it is connected to the internet, and the global IP address (GB) corresponding to the calling code (YB) of the receiving IP connection terminal (3B) is notified to the sending IP connection terminal (3A) to the sending IP connection terminal (3A) when the sending IP connection terminal (3A) inquires the calling code (YB) thereby enabling to establish communication from the sending side to the receiving side.

Disclosed are methods and apparatuses for sending data and receiving data. The method for sending data comprises: encapsulating to-be-sent data to obtain one or more data frames, the foregoing data frames comprising a data information block and a special word arranged in a spaced manner and the foregoing special word being formed by one or more repeated pseudo random sequence; and sending the foregoing one or more data frames. By means of the present invention, the technical problem is solved that a data sending method in a related technology cannot be used in a connection-oriented communications scenario, and technical effects of functions such as rapid capture, carrier synchronization, channel estimation, data protection and phase tracking are achieved.

A gateway server 40, in the case that discontinuation of TCP Connection A between a portable phone 10 and gateway server 40 is detected when gateway server 40 is relaying HTTP communication between portable phone 10 and a content server 70, maintains TCP Connection B1 between a billing management server 50 and gateway server 40 until gateway server 40 receives from billing management server 50 billing information for HTTP communication relayed up to the time of the discontinuation of TCP Connection A.

The invention provides a method for precisely synchronizing wireless data of electroencephalogram device. The electroencephalogram device comprises a central processing system and at least one acquisition subsystem. A principal clock of the central processing system completes synchronous timing among secondary clocks of the acquisition subsystems through a method of performing multiple times of time synchronization. Each time of time synchronization comprises the steps that the central processing system sends synchronization data wirelessly to the secondary clocks of all acquisition subsystems through a first communication protocol; the acquisition subsystem resets a timestamp of the corresponding acquisition secondary clocks after receiving the synchronization data; the synchronized secondary clocks add the timestamp to each data packet and send the timestamp to the central processing system through a second communication protocol along with data information; and the central processing system performs data alignment and processing by combining the received data information according to actual requirements. The first communication protocol is a connectionless communication protocol, and the second communication protocol is a connection-oriented communication protocol.

The invention provides a distributed coordination method and a device for multi-connection communication. The method comprises steps: a main connection control point acquires a switch pattern of each already-connected base station of the same multi-connection user; according to the switch pattern of each already-connected base station, sub frame configuration information corresponding to connection of each already-connected base station of the multi-connection user is determined; and the sub frame configuration information corresponding to connection of each already-connected base station is informed to each already-connected base station.