METHOD FOR CONNECTING SUBSCRIBERS OF AT OPPOSITE CALLS AND DEVICE FOR ITS REALIZATION

The invention relates to the field of telephone communication and concerns improvement thereof for satisfying needs subscribers at their opposite calls.

The nearest analog invention is the development of frit company Eriksson - Ukrainian of clayey 2013/116971 from 2013 year. In the said invention invention describes technical solution for communication networks of different nature and organization, in which network unit, which analysis and switching of call (msc type or server), is provided with additional function, implementing the method of analysis of presence on given network unit opposite compounds for the same pair of subscribers. By invention are subjected to analysis message (signals) of call establishment, such as IAM and the INVITE (are used versions in different types and generations communication networks); in case of detection counter pair one of call attempts suppressed network unit, freeing resource for switching of the second.

Analog has considerable disadvantages:

necessity of implementation on much numerical network units, modification of algorithms of operation which is in practice technically and economically complex problem;

determination of one of the sides of as causing and deviation of one of calls leaves probability of simultaneous operation of proposed method on several involved in the process of organization of calls switches (servers) and probability of deviation both calls;

determination of one of the sides of as causing and deviation of one of calls together with the presence of saturated periods of time, necessary network units for establishment of switching call, characteristic periods of time for actuation of subscriber device, periods of time for reaction of subscriber, forms high probability of impossibility compounds method proposed.

Effect of the proposed invention is to increase the speed was establishing connection at mutual calls, improved quality of communication for end users (subscribers), significant was to increase the availability of level of the method for implementation on communication networks, WiFi client continuously tracks the process load in communication networks and was to increase the income for networks, service users.

The result is achieved due, in the method connecting subscribers of at opposite calls, which for determining the presence of opposite call of subscribers is used control unit services, connected with commutators, in the presence of opposite call of subscribers treatment signals for decision connection subscribers is in additional unit control services, connected with control unit services and commutators of, and connection of subscribers at their opposite calls is in connected with commutators network unit outside the commutators.

Effect the device for realization of the, that device for connecting subscribers, containing interconnected switches and control unit services, is provided with an additional control unit services and connected with it network unit for connecting subscribers of at their opposite calls, at that the additional control unit is connected services unit with control unit services and commutators, and network unit is connected with commutators.

Additional unit control services may be is connected with unit control services and commutators of through standard signal interfaces organization call ATS, INAP, the SIO for realization of procedure of determining signs opposite call and for generation of control action on the call.

Additional control unit services can also be connected with control unit services and commutators of through standard signal interfaces organization call ISUP, the SIP/RTP useful for realization of procedures transmission media - information, of determining signs opposite call and for generation of control action on the call.

Description of the Invention explained drawings.

On Figure 1 - circuit, depict typical organization of interaction devices (network nodes) in modern communication network.

On Figure 2 - circuit, depict organization of interaction in communication network with introduction of new devices (network nodes).

On Figure 3 - circuit transmission of signals, depict stages method used in communication network.

On Figure 4 - circuit, depict composition and interaction of devices (network nodes) for realization of on network with large number of serviced users and calls.

Specific of the invention, described below, not is limited by specific aforesaid components parts of devices, described here, or stages, used in the method, as they can vary. Used terminology is used only to description composite elements without any target - or limitations.

Common for all types of communication networks are two level:

- signal level - set of messages and signals, which is used participants communication network (devices of end users and network units) for executing recording, operations sending call, confirmation of readiness and, possibly, about specific properties of supported by types of communication (voice, video, method for coding), confirmation signals beginning or conversation, signals reorganization channel, signals, which connect sides (units), involved in organization of communication, information about as and rating based; in digital networks is used also for transmission of information on permissible user services and other information, required for operation of communication network;

- media - level - level of organization of exchange encoded in digital format voice or video information, can of the device intermediate transcoding signals on intermediate units, at transition from network in network or provision of additional operation of services.

Said logical separation of the signal and media - level equitably as for of the most modern types of communication networks Giannidis (-over-of The-and-torus, over network IP access - the Internet), such as the Skype, Viber, GoogleTalk, FacebookMessenger, WhatApp, and for classical types of service lines, described by in telecommunication generators the ITU T, ETSI certified, 3gpp and other institutions.

To provide for the possibility of global communication and roaming in mobile cellular networks is used expanded volume signal information for data transmission subscribers, short text messages (SMS and USSD the) and information about calls in combination with classic signaling control challenges. In modern digital telephone network, so, exist two level alarm - signaling to provide for operation of cellular services and signaling, associated with challenges, allowing to send and receive calls in and outer communication network.

On Figure 1 depicted typical circuit modern communication network for digital telephony, possibility of using intellectual control of process of establishing. In frames intellectual control service users (subscribers, a Subscriber) network units, designated as VMSC (abbreviation, used for designations telephone station in cellular network - VisitorMobileSwitchingCenter, frequently called also commutators), is interaction with unit intellectual control, here and a standard money sums as the scp (SignalingControlPoint), for requests about the service after initiation request on user side. A request from a VMSC on the scp may be generated, in particular, request with user device on communication session, in the presence of special settings of network unit VMSC settings and user profile, stored in VMSC on time user in zone of servicing of this network unit VMSC. Response to the scp can contain response, confirming possibility of requested communication session without conditions, can contain response, obligation network unit VMSC to perform repeated a request through a definite time, or can contain an instruction about constant or time change of route organization of call, direction on vocal platform for playback audio information (for example, insufficiency of balance for performing call) or providing additional service (for example, recording voice message for an unavailable user - voice mail).

Solid pointers on Figure 1 designated order of establishing call from user (subscriber) to system unit (telephone station) and between network units. Dashed designated signal exchange. As shown on Figure 1, in case of simultaneous call subscribers each other in general case both user will be busy and communication session will not be successfully is installed. Client 1 initiates a call the Call₁ -1 through switch 2 (VMSC₁ ), which produces the request unit 3 control services (the scp) permission of continuation of call establishment and continues establishment of connection of the Call₁ -2 in direction of the called subscriber 4 on switch 5 (VMSC₂ ), where communicates about occupancy of the called subscriber 4. similarly subscriber 4 initiates a call the Call₂ -1 through switch 5 (VMSC₂ ), which produces the request unit 3 (the scp) permission of continuation of call establishment and continues establishment of connection of the Call₂ -2 in direction of the called subscriber on switch 2 (VMSC₁ ) for call, where commutator 2 communicates occupancy of the called subscriber 1.

On Figure 2 is given circuit communication network with introduction of new devices (network nodes), correcting situation of simultaneous requests (calls) connection establishment in the opposite direction, providing correction of routing calls, procedures of establishing connection for both calling subscribers and providing combining media - flows opposite calls outgoing direction of media flow - one call in an incoming flow of the second call and outgoing direction of flow of the second call into incoming flow of the first call. With introduction of new network nodes - of additional unit of 6 control services and connected with it of network unit 7 for connecting subscribers of 1 and 4 at their opposite calls - standard using previously available from the point of view of network interaction interfaces, possibility of changing the exchange of signals by changing settings of equipment and/or change of user data, describing address involved in a denials services network nodes intellectual control (the scp).

Solid pointers on Figure 2 designated order of establishing call from user (subscriber) to system unit (telephone station) and between network units. Dashed designated signal exchange standard interfaces and interfaces interaction units 6 and 7. as distinct from the above described standard scenario servicing on Figure 2 is presented sequence, when after request subscriber 1 on initiating call the Call₁ -1 through switch 2 (VMSC₁ ) is request unit 3 (the scp), which, in its turn, requests unit 6 (the scp_QNECT ) on analysis of presence of opposite call, receives response or o extension of call routing on 5 (VMSC₂ ) without change (formation of the Call₁ -2), or o necessary changing route of call in side of network unit 7 (iMCF_QNECT ) and formation of the Call corresponding call₂ -3, and transmits response to unit 2 (VMSC₁ ).

Practically is possible circuit realization, in which a request from a unit 2 (VMSC₁ ) is immediately on unit 6 (the scp_QNECT ), which in its turn requests or not requests unit 3 (the scp). One more scenario is such adjustment network units and user profiles, at which request units 3 and/or 6 is detected by fact of arrival of call on unit 5 (VMSC₂ ), service of the called subscriber - in this case call in series passes from subscriber 1 to switch 2 (VMSC₁ ), on switch 5 (VMSC₂ ) and in case of presence of indications of opposite of call on unit 7 (iMCF_QNECT ). Units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) are connected program interface, providing for analysis of presence of realization attempts counter calls - active user sessions and requests users.

Order of treatment of opposite call the side of subscriber 4 on Figure 2 completely is the order and variations of call processing the side of subscriber 1.

Commutator 7 (iMCF_QNECT ), receives control above the Call challenges₁ -3 and Call₂ -3, analysing signal information, associated with challenges, and information, the obtained from unit 6 (the scp_QNECT ), determines the need to forming signals, corroborating the beginning of conversation, and provision of process of exchange media - traffic between the Call challenges₁ -3 and Call₂ -3. Network units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) can be arranged in communication network one operator or in communication network operator - partner, providing necessary effect.

Circuit on Figure 3 illustrates examples sequence transmission of signals and in communication network, detaliziruyushchie version organization of combination of opposite calls, set out above, indicating, in addition, the possibility of realization of combination of calls, to produce the control over call on unit 7 (iMCF_QNECT ) through mechanism for forwarding or through treatment signal occupied T_Busy on network units of 3 (the scp) or 6 (the scp_QNECT ). Forwarding mechanism can be realized without units intellectual control and/or without touching units 3 (the scp) or 6 (the scp_QNECT ) through adjusting controls (CCCF) or nepodkontrolnoi (OCCF) an end user forwarding. For simplicity display unit 3 (the scp) on Figure 3 is lowered.

Network units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) can consist of a set of devices (units), that is connected with necessity of smooth servicing large number of users, performing large amount of calls in one and the same or close time. The up-communication network, service millions of users, may process several thousand simultaneous attempts compounds, that requires for achievement of required technical result reliable realization of complex treatment of with elimination or minimization points of failure. On Figure 4 is given circuit, depict composition and interaction of devices (network nodes) for realization of on network with large number of serviced users and calls. Unit 6 (the scp_QNECT ) in reality can be presented arbitrary calculated for particular communication network number of units from 1 to M. Unit 7 (iMCF_QNECT ) in reality can be presented arbitrary calculated for particular communication network number of units from 1 to n. For interaction units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) can be are separate device iMCF_{THE APP/DB IS} , providing storage and network access to operative registry obsuzhivayushchikhsya or only that serviced units 7 (iMCF_QNECT ) user calls information or information about signals installation calls, processed units 6 (the scp_QNECT ). Units 6 (the scp_QNECT ) is standard signal sequence messages from the communications network from switches 2 and 5 (VMSC) or from unit 3 (the scp) and form mating control sequence. Units 7 (iMCF_QNECT ) is standard signal messages, associated with media - channels, and media sequence (flows) from switches 2 and 5 (VMSC) and form mating sequence of signals and media - data. Units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) interact directly or through device iMCF_{THE APP/DB IS} , using internal program interface (ApplicationProgrammingInterface - of API).

Logic realization of the method proposed is realized by means of devices 7 (iMCF_QNECT ), performing direct treatment of calls, and devices 6 (the scp_QNECT ), guides calls on device 7 (iMCF_QNECT ). Device 7 (iMCF_QNECT ) can transmit maintenance calls from one device 7 (iMCF_QNECT ) to the other in cases, when mating call came earlier and is service on corresponding unit 7 (iMCF_QNECT ).

Network units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) include receiving object the Rx for production of messages from other network units and object CPU for determining the, whether cause the first and the second side each other.

Determining object CPU may be connected in microprocessor, microcontroller, microcircuit ASICs (specialized integrated microcircuit) or circuit FPGA Support (programmed logical integral circuit) or any other suitable circuit.

Receiving object the Rx may be connected in receiver or part of receiver input device - output, for example of the interface controller of Ethernet or any other suitable controller.

In addition, network units 6 (the scp_QNECT ) and 7 (iMCF_QNECT ) can include memory device MEM for storing data, for example, capabilities associated with other network units and/or own capabilities, and may also include a transmitter TX, for example connected in input device - output, for example of the interface controller of Ethernet or any other suitable controller, for sending appropriate messages other network units and/or to subscribers of and/or operation activity network.

At least device of this invention was mainly described is based on operation of network nodes, for example base of network unit by type of separate members, the invention can also be implemented in combined medium msc type or in Blades-and-medium Blades-and-servers, providing msc type or other similar functional capabilities, and also be a real physical or virtual logical information processing device.

Specific combination of elements and signs of, detail described above, is only example; interchangeability of and replacement of suggested versions of and methods of their realization to other versions also provided invention. Field of application of the invention are determined in the below of the following claims and their equivalents.