CN88100917A - Operating method of wideband/multislot switching apparatus - Google Patents

Abstract

Supply the operating method of wideband/multislot switching apparatus of the usefulness of digital-telecommunication switch.It is provided with a conversation processor, and signal message and same switch interface communication to receive a paths join domain singly connect request so that produce one.This switch interface comprises that conversion record and the generation by each circuit connection of described conversation processor control connects request more, and these requests are used for controlling a large amount of switches, so that realize the connection in described path.

Description

The present invention relates to a kind of for being used for the operating method of wideband/multislot switching apparatus of the digital remote communication switchboard such as X system convertor.

It is that a large amount of time slots are through passing through network after exchanging together, to be provided at the connection of the different bandwidth under the normal transmission that broadband/multigap is called out.Usually, this switch is linked to be the path of per second 64 kilobits, but this device is applicable to the exchange of any scale formula or any kind.

All time slots all are to same entity wiring (pulse-code modulation PCM or equivalence) by described switch transition connecting aspect the broadband call importantly.For example, deliver to same switch even there is two-way PCM to connect, also essential will the connection by different PCM of all time slots sends.This two paths must exchange with identical path delay.

This device is applicable to that any bandwidth is until the highest sync rates by described switch terminating.

The current method of considering the regulation of broadband service is based on switch that reinforcement signals to inside and the switch that the user is signaled, and allows this switch carry out the efficient search that has to all paths of may stack up meaning required business then.

This method is complicated and for realizing that it will relate to a large amount of development and researches.Also there is some subject matter at network range and management aspect, therefore, by utilizing the whole PCM several time slots in connecting, make the described network of common conversation can be, and can prevent that several broadbands from conversing and used up all available bandwidths and stoped the described problem of common conversation as the broadband conversation.

Therefore, an object of the present invention is to a kind of operating method of wideband/multislot switching apparatus that does not have all problems above-mentioned is provided.

According to the present invention, be provided with a operating method of wideband/multislot switching apparatus for the use of digital-telecommunication switch, wherein, disposed a call processing device, this processor is received in signal message and the same switch interface communication in the paths join domain, singly connect request to produce one, this switch interface comprises a map record that is connected by each circuit of described call processing device control, and producing multi-breal switch request (multiple switch requests), these requests are used to control some switches and go to realize that each path connects.

Refer now to following accompanying drawing and describe one embodiment of the present of invention, in the accompanying drawing:

Fig. 1 shows the calcspar of an operating method of wideband/multislot switching apparatus; With

Fig. 2 represents an example of data chainning.

With reference to figure 1, a kind of traditional call processing device CH is used to handle calling, passes the route of described network and give described digital switch with exchange instruction for they are selected.Usually this processor CH links to each other the A side with the B side, and receives the signal message SA in the join domain, SB.The interface that leads to described switch is in software layer, its not direct control hardware.

This call processing device is the standard cell of the SPC telephone exchange of a stored routine control.This processor receives the signal of sending out from the various information source relevant with call, removes to determine the routing of calling then with dial numeral.This call processing device can have the introducing point of some described numerals, thereby makes same group of numeral because of having different connotations from the user with coming automatic network.This call processing device is determined is not that special circuit/customer call is exactly to be formed and selected the route of an idle circuit by many circuit.

This call processing device is determined the needs of switching path, and for accomplishing this point, this processor will go to discern a path that needs connection by discerning its two ends.

The exchange literal sense of giving described exchange processing is:

A. the path that one of assignment-set up is used for all-calls

The b.AB path of using for all-calls of taking out stitches-remove

C. all take out stitches-remove to a certain whole connections that only are used for the known circuit under the malfunction.

D. survey-be mainly used under the malfunction,, ask another terminal of a paths according to-known point.

E. change the used change transmission direction of some conversation of transmission-confession.

Switch interface SI keeps a record REC to each circuit of being discerned by described call processing device CH, showing the COS of this circuit, and for example common (1 time slot), 6 time slots etc., and suitably be mapped to by any way on each switch under its control.Then, this switch (is converted to some raw requests MR that connect as path A being connected to B or removing certain paths with singly meeting request SWR by described call treatment more, so that when keeping the integrality of time slot, by means or an actual switch PS each respective paths is coupled together: promptly as this service, A links B, A ' links B ', and A " links B " etc.Described record REC takes certain map (A to A, A ' is to A " and B to B, B ' is to B " etc.) form of each circuit.

The listing in of all separations that participates in digit translation a little is used for every broadband service of being supported.This means:, have only those circuit that can transmit the same services level to introduce the some addressing according to these for each level.

All are the man machine interfaces by the used chart of the switch that relates to described broadband service, are for give the renewable MMI of flexibility aspect the broadband connection in definition.

Owing to strengthened described function of exchange, made existing standard exchange each path that request interface will be changed each broadband pathway and 64,000 ratio/seconds according to call-handling capability.It is in broadband pathway of exchange that this conversation processing will can not differentiated it.

From the data that kept between commutation period can be the indication of a broadband pathway on all four the derivation simultaneously this path of all time slots in each terminal.

Concerning all operations, when no matter communicating by letter when inter-process conversation and outside signalling or with Fabric Interface, described call processing device CH is with a circuit (being generally the former).

The distribution of the broadband service that specific PCM is connected is set by a service mark.

This just provides broadband service for the users of common Exchange Service and private wire circuit and VLL network.

The new improvement of this respect is the mapping of being carried out to switched circuit (a plurality of) from described conversation treatment circuit.In other words, it is with a kind of new combination, and a kind of of existing equipment reused.

Data

For keeping the required data area of described data to have 4, be defined as under the condition of broadband service, first data area is by conversion continually.Just just its excess-three of conversion is regional when setting up all new service layers.

Type selecting to required service realizes by circuit service layer (CSL), by described switch each circuit is all carried out this selection and discerns all service layers.In case recognized certain borad-band path, promptly utilize its excess-three number to carry out selection to actual time slot according to the zone, these three data are bandwidth, subscript and described time slot data itself in time slot data.

It is possible that more than one service layer has same band.

Circuit service layer (CSL)

This data area keeps the service layer of each circuit of described switch.

These data are to add target by PCM number and PCM channel number, to specify this service layer.Service layer 0 specializes in the usefulness of service 64,000 ratio/seconds, and other service layers can some different modes, limits with bigger bandwidth.

Service layer's bandwidth (SLB)

This data area keeps can be used for the number of channel of 64,000 ratio/seconds of a circuit in each service layer.

Remainder data then is for up to the usefulness of the service ranges of 2,000,000 ratio/seconds.Then need different data for more senior connection, to work to whole pulse-code modulation rather than to all channels.This also can mean: when needing to the access of other switches.

Service layer's subscript (SLI)

This data field makes the resolution of establishing all service layers have flexibility.This is a two-dimensional array subscript in service layer's data.

This is to add target by this service layer with the channel that recognizes.First project in these service layer's data of this data identification is used for all actual time slot in this path with identification.This N time slot will be initial with N continuous item with this subscript sign.

Service layer's data (SLD)

This data area makes setting up can have flexibility aspect service layer definite, and it discerns the actual channel in each service layer.These channels should be according to the order of sequence, and the reason of setting up these data by this way is the data for this exchange request of streamline ground access.

When the conversion request picked out as certain service of N time slot, then begin N continuous item of these data carried out access from the given project of described initial subscript.

The N of these a data project is each addressable circuits needed of each service layer.For example, concerning 6 time slots (384,000 ratio/second) service, 5 collection that 6 Item Sets of needs are synthetic.For a kind of service of 30 time slots will need 30 projects and concerning 31 time slots services 31 projects of needs.

Example with reference to a data communication shown in Figure 2.

It is described data of access how that Fig. 2 is expressed as the time slot that obtains a service.Just must carry out the access of data for setting up a paths, and then connect corresponding time slot from the SLD data to each terminal in this path.

PCMP is gone up as the circuit of channel C, and the S of service layer with N time slot is found.The following I that is designated as of these data.

The performance of exchange request

When Fabric Interface receives an exchange request from described call processing device, this service layer's bandwidth around each end of this path of this interface checking, this action of being taked will be depended on this service layer.If professional service layer is zero as 64,000 ratio/seconds, then will take described traditional exchange request action.

If described each terminal has different bandwidth, then should report certain fault.Alternative dispensing means is the minimum common bandwidth that this system can use this two terminal.

If two ends have identical service layer's bandwidth, then then carry out some action for described exchange request (primatives).

Usually the response to call treatment should reflect from the heaviest part in all responses of switch hardware, under part connection situation, and should be from this uncompleted calling of described switch write off.

Assignment AB

This switch is intended to establish a paths between an A and the B at 2, and it may require only to transmit along a direction.

The data field that the interface utilization of this switch has above illustrated, then by connecting corresponding to the time by the channel of N bandwidth item recognition, connect the corresponding switching path on this switch, determine each time slot on each end of this path, the described number of channel will obtain according to the SLD data.These paths must be set up with the time slot integrality.

Time slot determine to depend on above-cited data.Be to obtain time slot identification of each end of this path, must be to twice of these data interrogation.

If arbitrary path is not switched on, then the answer to the user must reflect this fault.

AB takes out stitches

This switch is intended to remove a path of having discerned from A to B.Same quadrat method during with above-mentioned assignment obtains the bandwidth and the channel data at two ends.

This switch interface is under the channel identification situation that realizes at every turn taking out stitches according to the SLD data, and the disconnecting signal that sends by the switch of giving each N path is determined by the time slot in each path of this switch and split off all associated pathway.

All take out stitches

This switch is intended to remove to certain any all connections on this switch.In the case, to have only an end be given described all paths.

This switch interface is determined all time slots of this given side and all connections of removing each time slot.

Follow the tracks of A

This switch is intended to seek one one path that end is given under the multipath situation, from that, every paths is needed a request.

This switch interface is found out the bandwidth of this end, so obtain a single-track to switch hardware, this makes this path pass through this switch, because this tracking results, and the other end that can given described path.But, when depending on the hardware check that provides a paths, then should pass through an explanation curve in each path of this switch by given other as if this track.

If arbitrary time slot is out of order or does not continue, then the answer to call processing device will reflect this point.

The change transmission direction

This is for the transmission means of a paths is become two-way from one the tunnel, or a unidirectional path is reverse, or the two-way transmission only is kept to one the tunnel.

This switch interface is treated this task in the mode that is very similar to described assignment.

Improvement business as described below can be proposed in aforesaid basic service expansion.

User's control of bandwidth

This business makes users be willing to look by their use and handles the service mark of all service layers of expression.This is similar to the control of other assistant service projects and will improves the flexibility of access.

For example, the user can become the circuit that six time slots are formed on demand as with six independent circuit.

Concerning the flexibility of depending on all service layers that handle by this exchange, there is certain limitation.

Discrete switch

Controllable is not a switch but discrete some switches, and can not influence the communication process that has only switch interface, and this point can be used to control a large amount of discrete switches, (for example, can exchange 140,000,000 ratio/second link).

One-way passage

By allowing the supplementary service layer, then can be provided at the calling party to the callee or have only the multiple business of a paths between from callee to calling party as the one way traffic of each bandwidth.

So, by making two conversations that separate of go path and backhaul pathways, using different bandwidth, the user just can obtain asymmetric communication.This can not influence this conversation and handle.

When the present invention and an X system convertor logotype, for example do not have influence on the network signalling and a kind of strong broadband/multigap business can be provided owing to a spot of variation.

Above-mentioned explanation is not for limiting the scope of the invention, and for example, sets up line separately for providing dial business with required bandwidth can add some.

Also can adopt the present invention and need not to be limited to traditional digital switch the exchange of other types.

A kind of mode of the present invention that realizes has more than been described.When it utilizes same switch, only comprise the connection of maximum 2,000,000 ratio/seconds, concerning high order connects, then require some additional datas on the whole PCM for operating in.In addition, if this method expands to when driving a plurality of switch, then must growth data for preserving this information.

Claims (7)

1, a kind of operating method of wideband/multislot switching apparatus that supplies the usefulness of digital-telecommunication switch, it is characterized in that: be provided with a conversation processor, this processor receives the signal message of a paths join domain, and same switch interface communication singly connects request to produce one, described switch interface comprises a map record that is connected by each circuit of conversation processor control and produces the request that connects more, and these requests are to be used for controlling a large amount of switches with the line of connecting described path.

2, operating method of wideband/multislot switching apparatus according to claim 1 is characterised in that the data of each circuit on wherein relevant with certain the circuit service layer described switch of conduct are stored and are used for discerning the type of described service layer and selection required service.

3, according to the operating method of wideband/multislot switching apparatus of claim 2, be characterised in that: wherein relevant data with the service layer bandwidth be stored and be used for representing on the circuit that can be used for each service layer 64,000 ratio/seconds to 2,000,000 ratio/second channel number.

4, according to the operating method of wideband/multislot switching apparatus of claim 2, be characterised in that: wherein be stored and be used for discerning first project in service layer's data, with the actual time slot of identification as this path with the subscript of certain service layer's relevant data.

5, according to the operating method of wideband/multislot switching apparatus of claim 4, be characterised in that; Wherein relevant with service layer data data are stored and are used for discerning all actual channel in each service layer.

6, a kind of foregoing basically operating method of wideband/multislot switching apparatus.

7, basically as operating method of wideband/multislot switching apparatus as described above with reference to accompanying drawing 1 to 2.

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