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34 results about "IP exchange" patented technology

IP exchange or (IPX) is a telecommunications interconnection model for the exchange of IP based traffic between customers of separate mobile and fixed operators as well as other types of service provider (such as ISP), via IP based Network-to-Network Interface. IPX is developed by the GSM Association.

Method for accessing mobile core network by utilizing fixed network

The invention provides a method for accessing a mobile core network by utilizing a fixed network (comprising a WLAN access network and a broadband IP exchange network) to obtain business service, comprising the following steps: a soft terminal obtains a user identity and authentication information; the soft terminal sends a registering request message I to a core network access gateway through a fixed network access layer and the IP exchange network, and the registering request message I carries the user identity and the authentication information; the core network access gateway sends a registering request message II to the mobile core network, and the registering request message II carries the user identity and the authentication information; the mobile core network echoes an authentication request message II containing authentication parameters II to the core network access gateway; and the core network access gateway echoes an authentication request message I containing authentication parameters to the soft terminal through the fixed access layer and the IP exchange network. By using a mobile user identification card (including an SIM card, a UIM card and a USIM card and the like) through a universal interface, the invention can realize businesses of mobile network voice, short message, data and the like simultaneously in a fixed broadband IP network, and has great advantage compared with other schemes which only realize business of the voice or the data singly.
Owner:SHANGHAI DINGZHU COMM TECH

A session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof

The embodiment of the invention discloses a session management method based on a new generation satellite communication system, a system thereof and an apparatus thereof. The session management method based on the new generation satellite communication system comprises the following steps: satellites exchange processing load decisions and a control unit obtains calling party information, called party information and business information; a processing mode for a satellite on-board load is determined; if a calling party and a called party belong to different communication networks, the satellite on-board processing mode is determined to be transparent forwarding; if the calling party and the called party belong to a same communication network, and the calling part requests a voice service, the satellite on-board processing mode is determined to be satellite on-board subcarrier exchange; and if the calling party and the called party belong to the same communication network, and the calling party requests data business, the satellite on-board processing mode is determined to be satellite on-board IP exchange, and satellite on-board load processing mode instruction information is emitted to a satellite. Through the utilization of the technical scheme above, fusion with a ground EPS network is convenient, and a time delay in communication is reduced. In addition, the utilization of satellite on-board resources is improved.
Owner:BEIJING SHENGAN TONGLI TECH DEV CO LTD

DTMF (dual-tone multifrequency) sound transferring method and device

ActiveCN102055516AOvercome the defect of not being able to send DTMF digits A-D to MSWireless network protocolsRadio transmission for post communicationTime ProtocolTransfer mode
The invention relates to a DTMF (dual-tone multifrequency) sound transferring method, which comprises the following steps: confirming a forward RTP (real-time protocol) grouping from a media gateway as a DTMF frame through a BSS (base station subsystem) after creating a voice calling, and then processing the DTMF frame so as to obtain a corresponding in-band DTMF signaling frame and send the in-band DTMF signaling frame to an MS (memory system). The invention also provides a DTMF sound transferring device, which comprises a BSS, wherein the BSS comprises a detection unit, a processing unit and a sending unit; the detecting unit is used for detecting the forward RTP grouping from the media gateway as the DTMF frame after creating the voice calling; and the processing unit is used for processing the DTMF frame so as to obtain the corresponding in-band DTMF signaling frame and send the in-band DTMF signaling frame to the MS through the sending unit. Under the transferring mode of IP exchange technique, the BSS digitally processes the DTMF in the forward RTP grouping from the media gateway into the in-band DTMF signaling frame and sends to the MS in the manner of in-band DTMF signaling frame, so as to successfully send the DTMF digital A-D in the forward RTP grouping from the media gateway to the MS, overcome the defects of the prior art that the DTMF digital A-D (analog-digital) can not be sent to the MS, and efficiently realize various services related to DTMF.
Owner:NANJING ZHONGXING SOFTWARE

Admission control system supporting strategy space dynamic expansion and control method thereof

InactiveCN101651613ASecurity Admission ControlReliable admission controlData switching networksStructure of Management InformationMilitary communications
The invention discloses an admission control system supporting strategy space dynamic expansion and a control method thereof. The invention mainly solves the problems that the existing admission control method can not emerge along new user service, and the security reliability of dynamic expansion strategy space is poor when network state changes. The system comprises a user service information extraction module, a network information extraction module, a strategy repertoire and an admission control module. The control method comprises the following steps: extracting flow information and network operational state information from the information flow and the network; extracting the attribute value of strategy space from the information; generating attribute vector of the strategy space andthe structure of the strategy space; comparing the attribute vector of the strategy space and the structure of the strategy space, checking whether the attribute vector and the structure of the strategy space are consistent or not; if so, matching strategy output results, if the strategy is simultaneously updated, the new strategy is stored in the strategy repertoire; if not, changing the attribute value or changing strategy attribute and dynamical expansion strategy space, and repeating the step. The invention can be used in military telecommunication nets and IP exchange nets.
Owner:XIDIAN UNIV

A broadband satellite communication system and communication method based on satellite-borne ip switching

The invention discloses a broadband satellite communication system and a communication method based on satellite-borne IP exchange, including a broadband communication satellite with a satellite-borne IP exchange function, a system network management and control center, a gateway station and a satellite terminal; The broadband communication satellite with IP switching function performs IP switching on the star; the system network management control center cooperates with the gateway station and the satellite terminal to realize the maintenance and distribution of routing switching information based on the satellite-borne IP switching broadband satellite communication system; the satellite terminal According to the switching label information assigned by the system network management and control center, the gateway station will package and unpack the received service data packets to realize the sending and receiving of services. The system performs IP exchange on the satellite without implementing complex routing algorithms. The system construction and expansion are simple and flexible. While improving the utilization efficiency of satellite system link resources, it has good realizability. Simultaneously, the invention also discloses a communication method of the star-borne IP switching broadband satellite communication system.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY
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