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131 results about "Integrated Services Digital Network" patented technology

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. It was first defined in 1988 in the CCITT red book. Prior to ISDN, the telephone system was viewed as a way to transport voice, with some special services available for data. The key feature of ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system. The ISDN standards define several kinds of access interfaces, such as Basic Rate Interface (BRI), Primary Rate Interface (PRI), Narrowband ISDN (N-ISDN), and Broadband ISDN (B-ISDN).

Universal serial bus (USB) RAM architecture for use with microcomputers via an interface optimized for integrated services device network (ISDN)

A RAM-based interrupt-driven interface device is disclosed for establishing a communication link between a universal serial bus (USB) host and a microcontroller device for providing a control function, the interface device being operative to receive digital information in the form of command, data and control packets from the host and to process the packets and communicate the processed digital information to the microcontroller device, and in response thereto, the microcontroller device being operative to communicate digital information to the interface device for processing and transfer thereof to the host. The interface device includes means for receiving a command generated by the host through a USB bus, means for storing the host-generated command and for generating an interface device interrupt signal upon storage of said host-generated command for use by the microcontroller device in responding to the host-generated command, a microcontroller bus for transferring microcontroller information and the interface device interrupt signal between the interface device and the microcontroller device. The interface device further includes means for receiving a microcontroller command from the microcontroller device in response to said interface device interrupt signal and means for storing the microcontroller command and it is operative to generate a microcontroller device interrupt signal upon storage of the microcontroller command for use by the interface device in developing an address for identification of the interface device to the host during subsequent communications therebetween, wherein during communication between the host and the interface device, the interface device-developed address is used by the interface device to identify host-provided information in the form of packets, and upon processing of the host-provided information, to provide the microcontroller device with the necessary information to allow it to respond to the host thereby allowing a generic microcontroller device to be flexibly interfaced with a USB, host for communication therebetween.
Owner:SK HYNIX INC

Method and system for implementing flow sharing of multiple mobile terminal cards

InactiveCN102843668AMeet the conditions for trial commercial useCompliance with specificationsConnection managementNetwork planningGeneral Packet Radio ServiceIntegrated Services Digital Network
The invention provides a method and a system for implementing the flow sharing of multiple mobile terminal cards. The method concretely comprises the following steps: an additional data card platform is established; E. 214 route data are configured for an HSTP (high signaling transfer point), and a special IMSI (international mobile subscriber identity) number segment route for an additional data card is directed to the additional data card platform; the additional data card platform participates in the PS (packet switched) domain attachment process of the additional data card, so that the additional card generates Internet call tickets taking a main card MSISDN (mobile subscriber ISDN (integrated services digital network) number) and an additional card IMSI as identifiers in an SGSN (serving GPRS support node) and a GGSN (gateway GPRS (general packet radio service) support node); and after acquiring a billing center, the call tickets are combined through taking MSISDN as an identifier, so that the Internet call ticket of the additional card is merged into an account of the main card. According to the invention, through providing the additional data card platform, the flow sharing of multiple mobile terminal cards is implemented through the signaling exchange between the additional data card platform and a core network, no improvement on the core network, a BSS (base station subsystem) and a CRM system is required, the service processes of the existing BSS, SGSN (service GPRS supporting node) and CRM and the like are not affected, and no influence is caused on an operator network, thereby realizing the inter-flow sharing of 3G main number packages.
Owner:BEIJING DASCOM TECH

Method, system and device for identifying terminal

The embodiment of the invention relates to a wireless communication technology, particularly a method, system and device for identifying a terminal. The invention is used for solving the problem of failure to identify a great deal of MTC (Machine-Type Communication) equipment in the 3GPP (3rd Generation Partnership Project) system in the prior art. The method provided by the embodiment of the invention comprises steps as follows: a network node determines an equipment identification, and determines the corresponding MTC equipment according to the equipment identification, wherein the equipment identification comprises an IMEI (International Mobile Equipment Identity) corresponding to the MTC equipment, and an IMSI (International Mobile Subscriber Identity) corresponding to an SIM (Subscriber Identity Module) or USIM (Universal Subscriber Identity Module) in the MTC equipment. In the method provided by the embodiment of the invention, since the IMSI and the IMEI are bound together to identify one MTC equipment and also identify the MTC equipment contract, the MTC equipment can be identified in the 3GPP system. The embodiment of the invention can also use the IMSI to identify an MTC subscriber contract, and use an MSISDN (Mobile Station-Integrated Services Digital Network) number to identify an MTC group composed of the MTC equipment in the MTC subscriber contract.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Wireless broadband service

A fixed broadband wireless data access service providing shared wide-band packet-switched data transport for high speed data access in areas where conventional ADSL service and fiber optic service are unavailable. The wireless data access service is a point-to-multipoint cellular-type network that connects customers to data service providers through the ATM backbone of an existing network. Customers connect to the ATM backbone and data service provider through a cellular grid in which a wireless base station in each cell communicates with the individual customer wireless equipment within its cell site coverage area. The base stations are connected to an ATM backbone switch through wireless and wireline backhaul links. The upstream and downstream bandwidths of the wireless broadband network are engineered in various symmetric and asymmetric configurations to provide a shared packet-switched connection that emulates an uninterrupted, direct wireline ADSL connection. The wireless broadband network employs a data protocol of shared access bandwidth and adaptive asymmetric data rates to support multiuser service sessions by wireless transmission. The wireless broadband network is not network protocol specific and can be applied to wireless asymmetric digital subscriber line service, wireless integrated service digital network over digital subscriber line service, wireless very high bit rate digital subscriber line service, or wireless symmetric or single-line digital subscriber line service.
Owner:AT&T INTPROP I L P

Realization method for opening call state capability and system

ActiveCN102340767AReduced feature upgrade requirementsReduce processing load requirementsNetwork data managementThird partyAccess network
The invention discloses a realization method for opening call state capability and a system; the method comprises the steps that: a subscriber inquires and requests the call state of a user with third party application, third party application access business access network security access gateway (SAG) sends the business request to the SAG that the subscriber belongs to; the SAG that the subscriber belongs to sends a call state subscription request to an interrogating call session control function (I-CSCF); a serving-call session control function (S-CSCF) that a subscribed user belongs to forwards the subscription request to a public switched telephone network/comprehensive business digital network simulation sub-system packet service system (PSS) that the subscribed user belongs to; only when the call state of the terminal of a subscriber list is changed, PSS sends a state updating notice to the SAG; and the SAG that the subscriber belongs to searches a subscription relationship form and determines to forward the state change notice to which application after receiving the state updating notice of the subscribed which is sent by the PSS. The invention can effectively reduce the function upgrading requirement on the PSS, and reduce the processing load requirement on the PSS.
Owner:CHINA TELECOM CORP LTD

Mobile phone-based identity identification and near-field payment method

The invention provides a mobile phone-based identity identification and near-field payment method. The method comprises the following steps of: guaranteeing the identifiability and the unique legality of the mobile phone by checking a mobile station integrated services digital network (MSISDN) information in a communication protocol; establishing a medium database by an application developer, binding a mobile phone card or a mobile phone number to application data, translating sensitive information into a security non-confidential format, and establishing a corresponding relation between the identity of the application data and a mobile phone user; installing corresponding software in the mobile phone, sending an identity authentication request, and carrying out on-line identity authentication by searching binding information of the medium database; and performing the near-field payment and the identity identification based on the identity authentication. By the method, under the condition that hardware of the mobile phone is not changed, the mobile phone card is not replaced, and any identity identification equipment is added to the mobile phone, the mobile phone is bound to a bank card or a gate card is bound to a user identity and a user authority; the method is high in security and convenient to operate; and work and life of people are greatly facilitated.
Owner:NANNING BAIRUI TECH DEV CO LTD

Signal reverse transmission system and method used for sharing-cable integrated services digital network

The invention provides a signal reverse transmission system and a method used for a sharing-cable integrated services digital network. The system comprises a reverse signal inserter used for reverselytransmitting a low frequency signal of a direct current level from a control end to a coaxial cable, at the same time, preventing a high frequency signal from the coaxial cable from feeding back to the control end, and preventing the low frequency signal from entering a sharing-cable integrated service digital network demodulator for demodulating the high frequency signal; a coaxial cable used for reversely transmitting the low frequency signal and forwards transmitting the high frequency signal; and a reverse signal reductor used for reading the low frequency signal from a low frequency channel of the coaxial cable to feed back to front-end equipment, at the same time, preventing the low frequency from entering the sharing-cable integrated service digital network modulator for modulatingthe high frequency signal, and allowing the high frequency to be forwards transmitted to the coaxial cable. The system and the method overcome the defects that the prior reverse transmission technology has a high error rate, and realize the reverse transmission effect with stable signal and low error rate in the sharing-cable integrated services digital network.
Owner:郭松
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