CN1266590A - Telecommunication switchboard - Google Patents

Abstract

A telecommunications exchange comprises a switching device (1201) of a first type through which telecommunications connections are routed. An access unit (1202) connects the switching device to a telecommunications network. The telecommunications exchange includes an exchange main processor (1200) which generates switch control messages for a switching device of a second type but which translates the switch control messages for use by the switching device of the first type. Preferably, the switching device of the second type is a group switch, and the exchange main processor is an open platform processor. The exchange main processor emulates portions of a telecommunications exchange which control the switching device of the first type, the emulated portions including a central processor (1234), regional processors, and a switching subsystem (1230). In emulating the central processor, the exchange main processor advantageously enables utilization of previously developed logic for telecommunications exchanges using the second switching device by translating coded instructions executable by the central processor into instructions executable by exchange main processor.

Description

Telecommunications switch

Background

The application is that the series number of submitting on July 3rd, 1997 is No.08/887,653, be entitled as the part continuity continuation application of the U.S. Patent application of " SIMULATION OF COMPUTER-BASED TELECOMMUNICATIONS SYSTEM (simulation of computer based telecommunication system) ", and it then is that the series number of submitting on June 13rd, 1997 is No.08/874,660, be entitled as the part continuation application of " SIMULATION OF COMPUTER PROCESSOR (simulation of computer processor) ", the two is all here in conjunction with reference.

1. invention field

The present invention relates to telecommunications, relate more specifically to telecommunications switch.

2. relevant technologies and other consideration

The user of telecommunication service is connected to each other by one or more networks, therefore connection, and for example a call or transfer of data can be carried out between the user.Network comprises various nodes or switch, selects route by them to connecting.In this respect, each user is connected to local switch by land-line, and local switch is by other transit exchanges link together (passing through land-line) when being necessary.Each local switch and transit exchange have big and complicated electric wire connecting junction usually, select route to connecting by them between Incoming and out circuit.

An example of the traditional wired device that telephone exchange is used is considered to group switch, for example AXE Group Switch of Telefonaktiebolaget L.M.Ericsson.Group switch generally includes space switching module and time switch module in the exchange kernel, and the cohort switch software.The whole switch that comprises group switch is under the control of central processing unit and a plurality of local processors.Central processing unit and local processor are carried out group switch software and other switch software.Group switch also has special hardware, and formation is connected with the circuit switched module, manages business and signaling.The circuit switched module finally is connected to outside the switch, for example is connected to the user.Even minimum group switch also can be handled several thousand connections usually.

The telephone exchange that comprises group switch is complicated and expensive.Complexity and expense are owing to the dedicated hardware units of using in the switch to small part, and the size of group switch itself.In addition, central processing unit is the processor of customization, compares the industry standard processes device and wants much expensive.

Because telephone exchange is very complicated, people are devoted on the development﹠ testing of the used proper operation system of telephone exchange central processing unit.For example,, developed the special operational system of a kind of APZ of being called, coordinated the various aspects of telephone exchange practically for the AXE group switch.The operating system of AXE group switch is carried out the instruction set of APZ customization.This operating system is highly developed and complicated, has reflected the complex characteristics of group switch itself.

Some environment use capacity and the cost and unreasonable of large-scale groups group switch for telephone exchange.For example, in the rural area or the less area of population, there is not a large number of users to carry out the telephone exchange operation to it.In addition, some developing countries in the world, few resource requirement telephone exchange realizes on small range.But having one day can have pent-up demand to bigger exchange capacity to these environment eventually.

Therefore we needed be can expensively not realize simplifying but the telecommunications switch of the switching equipment of tool upgrading potentiality.

The simplified summary of invention

Telecommunications switch comprises the switching equipment of the first kind, by it telecommunications is connected and selects route.Access unit is connected to telecommunications network with switching equipment.Telecommunications switch comprises the exchange primary processor, is also referred to as the switch analog processor, and the second class switching equipment is produced the exchange control messages, but conversion exchange control messages is used for first kind switching equipment.Preferably, the second class switching equipment is a group switch, and the exchange primary processor is the open platform processor.

The part telecommunications switch of exchange primary processor Simulation Control first kind switching equipment, emulation partly comprises central processing unit, local processor and switching subsystem.In the emulation central processing unit, the exchange primary processor converts the instruction that the exchange primary processor is carried out to by the coded command that central processing unit is carried out, and uses second switching equipment advantageously to utilize the telecommunications switch logic of former exploitation.

Brief description of the drawings

Invent aforementioned and other purpose, characteristic and advantage will be distinct in the illustrated preferred embodiment of accompanying drawing following more specifically described, reference character is at the same parts of each view middle finger among the figure.Accompanying drawing is not necessarily pro rata, but focuses on the explanation inventive principle.

Figure 1A is the telephone switching system schematic diagram that comprises the remote subscriber level.

Figure 1B is the telephone switching system schematic diagram, and wherein user class is included in the parent exchange.

Fig. 1 C is the telephone switching system schematic diagram that comprises the remote subscriber level and have standard interface.

Fig. 2 is an embodiment according to invention, the schematic diagram of telephone switching system central processing unit.

Fig. 3 describes to comprise the diagram that concerns between the elementary cell of group switch subsystem (GSS) kernel.

Fig. 3 A is the diagram of the time switch module (TSM) that comprises in group switch subsystem (GSS) kernel of Fig. 3.

Fig. 3 B is the diagram of the space switching module (TSM) that comprises in group switch subsystem (GSS) kernel of Fig. 3.

Fig. 4 is the diagram of group switch subsystem (GSS) with space switch of several interconnection.

Fig. 5 A is the telecommunications switch schematic diagram according to invention first embodiment.

Fig. 5 B is the telecommunications switch schematic diagram according to invention first embodiment.

Fig. 5 C is the telecommunications switch schematic diagram according to invention first embodiment.

Fig. 6 is the schematic diagram that is included in the exchange logic hardware in the alternative switching equipment of telecommunications switch of the present invention.

Fig. 6 A is the grouping diagram that comprises the grouping prefix that uses in the alternative switching equipment of telecommunications switch of the present invention.

Fig. 6 B is the diagram of the functional object that comprises in the alternative switching equipment of telecommunications switch of the present invention.

Fig. 7 is the computer system schematic diagram that can be used for the exchange primary processor of telecommunications switch of the present invention.

Fig. 8 is the interface system schematic diagram according to inventive embodiments.

Fig. 9 is the schematic diagram according to the cpu simulator of inventive embodiments.

Figure 10 is that expression is according to the pairing software distribution diagram of the various analog modules of inventive embodiments.

Figure 11 is the schematic diagram according to the group switch analog module of inventive embodiments.

Figure 12 is that expression emulation monitoring routine converts object code to emulator command and carries out the streamline of emulator command or the diagram that the increase formula is coordinated.

Figure 13 is that expression comes the self simulation central processing unit according to a kind of pattern of invention and passes through the processing diagram of simulation group switch subsystem (SGS) to the exchange control messages of switching equipment.

The detailed description of accompanying drawing

In the following description, for the purpose of explaining rather than limiting, proposed specific details, for example specific structure, interface, technology etc. are so that provide thorough of the present invention.But those skilled in the art knows that obviously the present invention can deviate from these specific detail and implement in other embodiments.In other cases, the detailed description of well-known devices, circuit and method all is left in the basket, in case description of the invention is obscured by unnecessary details.

The invention provides a kind of telecommunications switch, wherein traditional group switch is substituted by another kind of switching equipment.Substitute switching equipment itself and in fact be directly connected to access unit (for example, access module and trunk line), and comprise exchange logic.Except substituting switching equipment and access unit, telecommunications switch of the present invention comprises the exchange primary processor, mainly realizes the remainder of telecommunications switch.The exchange primary processor can be the industry standard processes device, and imitation realizes the processor and the various subsystem of the conventional telecommunications switch of cohort exchange.The exchange primary processor additionally provides adaption function (comprising interface and conversion), and switching computer can be communicated by letter with alternative switching equipment.When the central processing unit of simulation conventional telecommunications switch and local processor, the exchange primary processor advantageously will convert computer in return with the code module that instruction set is write of conventional telecommunications switch operating system to and carry out the code that the exchange primary processor of simulating can be carried out.

Before describing the present invention, provide general introduction earlier to two embodiment of conventional telecommunications switch that use group switch.

1.0 have the conventional switch of group switch

Figure 1A has represented to comprise the telephone switching system 18A of the local call switch 20 that is connected to remote subscriber electric wire connecting junction (RSS) 22.Switch 20 comprises group switch subsystem (GSS) 30.Group switch subsystem (GSS) 30 is subjected to the control of one or more group switch local processors (GSRP) 32, and the latter is subjected to the control of central processing unit (CP) 34 again.Central processing unit (CP) 34 and group switch local processor (GSRP) 32 are by local processor bus (RPB) 36 communications.The signaling terminal 37 of other local processor, Signaling System 7(SS-7) and other signaling terminal maincenter (STC) 38 also are connected to local processor bus (RPB) 36.Shown in Figure 1A, each signaling terminal maincenter (STC) 38 is connected to relevant exchange termination circuit (ETC) 40.The signaling terminal 37 of Signaling System 7(SS-7) is connected to relevant exchange terminal circuit (ETC) 41.Exchange terminal circuit (ETC) 41 is connected to other electric wire connecting junction by link 42.

Remote subscriber electric wire connecting junction (RSS) 22 comprises a plurality of circuit switched modules (LSM) 44, and each circuit switched module (LSM) 44 is connected to a plurality of users, and for example the user 46.Circuit switched module (LSM) 44 comprises a plurality of unit.At least one, preferably a plurality of (but needn't all be) circuit switched modules (LSM) 44 have exchange termination plate (ETB) 48.Each circuit switched module (LSM) 44 has expansion module local processor (EMRP) 50 and time switch (TSW) 51.Each exchange termination plate (ETB) 48 is by being connected to a port of group switch 30 through one link among exchange terminal circuit (ETC) 40.Expansion module local processor (EMRP) 50 is connected to two independently EMRP bus 56A and 56B.EMRP bus 56A also is connected to signaling terminal far-end (STR) S8A; EMRP bus 56B also is connected to signaling terminal far-end (STR) 58B.Signaling terminal far-end (STR) 58 is connected to the exchange termination plate (STB) 48 of remote subscriber electric wire connecting junction (RSS) 22.

Calling between the user is also referred to as connection, selects route by telephone switching system 18.Calling generally comprises signaling and business (user's message, for example speech or data).Call out or connect the channel that uses on the link 54, time-division time slot for example, channel 16 wherein is often referred to and is decided to be common channel signalling.

Figure 1B represents telephone switching system 18B, and wherein user class is included in female switch.The system 18B of similar Figure 1A, telephone switching system 18B comprises the group switch subsystem (GSS) 30 that is subjected to group switch local processor (GSRP) 32 controls, and processor 32 is communicated by letter with central processing unit (CP) 34 by local processor bus (RPB) 36 again.The telephone switching system 18B of Figure 1B is different from the system among Figure 1A, because every pair of signaling terminal maincenter (STC) 38 and exchange termination plate (ETB) 40 constitute local processor bus transducer (RPBC) 60.Local processor bus transducer (RPBC) 60 is connected to local processor bus (RPB) 36 and circuit switched module (LSM) 44.In addition, the PBA printed board arrangement that is called as connector terminal circuit (JTC) 62 of the exchange termination plate (ETB) in each circuit switched module (LSM) 44 substitutes.

Group switch subsystem (GSS) 30 comprises a plurality of space switching modules, is referred to as space switching module (SPW) 70 here.The control that every line space divides Switching Module to be subjected to a time switch module has a plurality of time switch modules (one of every row), is referred to as time switch module (TSM) 72.

When showing calling, the connection signaling will in group switch subsystem (GSS) 30, set up, group switch local processor (GSRP) 32 is by writing information in the control storage appropriate in the time switch module, select to connect use for this by the path of group switch subsystem (GSS) 30, for group switch subsystem (GSS) 30 synchronously, use a plurality of clock modules, be referred to as clock module CLT 74.

Be used to set up, select route and the termination user by network to believe that the signaling of civilian information (that is business) is called " connection signaling " here.Connect signaling and be generally one of two types: Channel Associated Signaling and Common Channel Signaling.This connection signaling should not obscured with program signaling (for example, software instruction), the latter in fact be used for two or more processors or between them control switch various functions.

In the telephone switching system of Figure 1A and Figure 1B, central processing unit (CP) 34 must be communicated by letter with the expansion module local processor (EMRP) 50 in being included in circuit switched module (LSM) 44.Central processing unit (CP) 34 service routine signals are communicated by letter with expansion module local processor (EMRP) 50.These program singals are included in the part that connects transmission information in the exchange channel.Promptly, in the embodiment of Figure 1A, communication between central processing unit (CP) 34 and the expansion module local processor (EMRP) 50 appears in the connection signaling between signaling terminal maincenter (STC) 38 and the exchange termination plate (ETB) 48 (it being carried out Route Selection by exchange terminal circuit (ETC) 40), and terminal extension plate (ETB) 48 is connected to signaling terminal far-end (STR) 58.Each signaling terminal far-end (STR) 58 is connected to all expansion module local processors (EMRP) 50.In the embodiment of Figure 1B, each local processor bus transducer (RPBC) 60 is connected to all expansion module local processors (EMPR) 50.

The structure of the telephone switching system of Figure 1A and Figure 1B is that those skilled in the art are intelligible.The series number that other example of this structure was submitted on February 15th, 1996 is No.08/601,964, be entitled as in the U.S. Patent application of " TELCOMMUNICATION SWITCHING EXCHANGE (telecommunications exchange switch) " and describe, this application is here in conjunction with reference.

The telephone switching system of Figure 1A and Figure 1B has used non-standard interface, and the telephone system of Fig. 1 C has been used standard interface, for example the V5 interface.The main difference of the telephone system of Fig. 1 C and Figure 1A telephone switching system is that signaling channel is routed to one or more local processor RP by group switch 30, and signaling channel information is forwarded to central processing unit 34 by STC 38 and on local processor bus 36.

1.1 the central processing unit of conventional switch

The embodiment of central processing unit (CP) 34 represents in Fig. 2.In fact, central processing unit (CP) 34 comprises two central processing units, is specially central processing unit 34A and central processing unit 34B, is referred to as central processing unit 34.Each central processing unit comprises instruction process unit (IPU) 80, has instruction process unit 80A and 80B, upgrades and matching bus 82 connections by IPU.Each central processing unit also comprises signal processor unit (SPU) 84, has signal processor unit 84A and 84B, upgrades and matching bus 86 connections by SPU.Work among the signal processing unit 84 management CP 34, and the work that will do of preparation instruction processor unit 80 make instruction process unit (IPU) executive program continuously by this.Instruction process unit (IPU) executive program, signal processing unit informs IPU should carry out the program in which address.

Each instruction processing unit (IPU) 80 all addressable three memory cell are specially program storage (PS) 87, reference memory (RS) 88 and data storage (DS) 89.As implied above, instruction processing unit (IPU) 80 is executed the task, and each task is corresponding to the one group of instruction that is stored in the program storage (PS) 87.Signal processor (SPU) 84 is as the task scheduling of instruction processing unit (IPU) 80.Combine with this scheduling, for each task, signal processor (SPU) 84 is from (for example) external world or from instruction processing unit (IPU) 80 reception programs " signal ".Generally speaking, program singal is to inform that the instruction of carrying out wherefrom in the specific part of one group of instruction, program singal comprise the data that are used to carry out this group instruction.Reference memory (RS) 88 comprises the information of describing the variable that uses in program singal, piece and the system.

Maintenance unit (MAU) 90 is connected to instruction processing unit (IPU) 80.Maintenance unit (MAU) 90 has several functions, is included in to start test under the failure condition and determine which side, and for example central processing unit 34A or central processing unit 34B will be designated as the executor.

Each central processing unit 34 also comprises local processor processing program 92.Local processor processing program 92 is handled and is gone from the various local processors program signaling of (comprising local processor bus transducer 60 and group switch local processor 32).Local processor processing program 94 is connected to its associated signal processor (SPU) 84 and local processor bus (RPB) 36.

Other structure of specific central processor 34, APZ for example, and the series number that the demonstration mode of scheduler task was submitted in December 19 nineteen ninety-five is No.08/574,977, be entitled as in the U.S. Patent application of " JOBSCHEDULING FOR INSTRUCTION PROCESSOR (task scheduling of instruction processing unit) " and disclose, here in conjunction with reference.

As mentioned above, instruction processing unit (IPU) 80 is executed the task, and each task is corresponding to the one group of instruction that is stored in the program storage (PS) 87.Instruction processing unit (IPU) 80 carry out and the instruction that from program storage (PS) 87, obtains according to the instruction set encoding of central processing unit 34.In the embodiment shown, instruction set is used for APZ.

1.2 the exchange kernel of conventional switch

Fig. 3 has represented to comprise the relation between the elementary cell of group switch subsystem (GSS) 30 kernels with simple form.Specifically, Fig. 3 has represented a plurality of time switch modules (TSM), and for example TSM0 is connected to space switching module SPM to TSM31.Each time switch module (TSM) has a plurality of I/O that are attached thereto, for example 512 PCM circuits.When connection is set up, the access path by group switch subsystem (GSS) 30 by time switch module (TSM), via space switching module (SPM), arrive same or another time switch module (TSM).Therefore, group switch subsystem (GSS) 30 is called as and has T-S-T (time-division-sky branch-time-division) structure.Just as used herein, group switch is any switching equipment with T-S-T structure.

As shown in Figure 3A, each time switch module (TSM) has internal memory, is called memory.Some memories are called speech memory and the interim storage of professional (for example voice) sampling are provided.Other memory is a control storage, the order that control is read from corresponding speech memory.Because the business on time switch module (TSM) the processing both direction (for example, sampling), speech memory and control storage be that to enter the sampling of time switch module (TSM) needed, and another is the sampling of leaving time switch module (TSM).Therefore, as shown in Figure 3A, time switch module (TSM) has been provided speech memory SSA and control storage CSA, the sampling that is used to enter time switch module (TSM), speech memory SSB and control storage CSB are used to leave the sampling of time switch module (TSM).In addition, time switch module (TSM) has the control store of space switching module (SPM), is designated as CSC.

Fig. 3 B has represented to be expressed as the space switching module (SPM) of normal crossing dot matrix.The gate that the crosspoint representative opens and closes.Space switching module (SPM) the control storage CSC control delegation " crosspoint " of time switch module (TSM) (for example, all " crosspoints " of the control of the CSC among TSM0 guiding TSM0).

When setting up in being connected group switch subsystem (GSS) 30, the software of central processing unit 34 (seeing for example Figure 1A) is selected the path by the exchange kernel.The moment that the Path selection reference sample is transmitted, and be called the internal time slot selection.After the software of central processing unit 34 is selected a paths, the local software of group switch local processor (GSRP) 32 will realize that the information in this path writes in the control storage of the TSM that comprises in the particular path.

Fig. 3 has represented to be connected to 32 time switch modules (TSM) of each space switching module (SPM).Fig. 4 represents that bigger electric wire connecting junction kernel can constitute the large matrix of big exchange capacity by several space switching modules (SPM) interconnection is constructed.

2.0 the switch architecture of invention

Telecommunications switch first embodiment according to invention represents in Fig. 5 A.The telecommunications switch of Fig. 5 A comprises exchange primary processor 1200A, substitutes switching equipment 1201 and outside access module 1202A.

The telecommunications switch second and the 3rd embodiment of invention represent in Fig. 5 B and Fig. 5 C respectively.The second and the 3rd embodiment has alternative switching equipment 1201 similarly, and still (as what after this explained) has dissimilar outside access module 1202B, 1202C respectively.As what after this explained, the exchange primary processor among the present invention is carried out simulation.Therefore, exchange primary processor 1200 is also referred to as the exchange analog processor.No matter hardware may be identical, but Fig. 5 is A, the simulation steps carried out among the embodiment of Fig. 5 B and Fig. 5 C is different, so the exchange primary processor among these embodiment is called 1200A, 1200B and 1200C.After this, when claiming the exchange primary processor of arbitrary embodiment, use reference number 1200 when coming round.Similarly, when the arbitrary outside access module type of common name, use reference number 1202.

2.1 switching equipment

Switching equipment 1201 can be common for all embodiment, can be any configuration that is used to connect the appropriate switching hardware unit of telecommunications access module (for example PCM link).

The example switching equipment of representing among the illustrated embodiment 1201 be not group switch (for example, not the electric wire connecting junction of T-S-T type), but packet processing switch, unoccupied place allocation packets (having professional Payload) when pursuing based on the address information that provides in the grouping prefix.Represented among each embodiment as Fig. 5 A, Fig. 5 B and Fig. 5 C, comprise one or more signaling terminal 1201-1, exchange logic 1201-2 and pcm interface 1201-3 at hardware aspect example switching equipment 1201.On its port one 201-4, switching equipment 1201 is connected to outside access unit 1200 by PCM channel or link.The signaling system that is preferably No. 7 time slot signaling systems is implemented between signaling terminal 1201-1 and exchange logic 1201-2.

Although not expression like this, switching equipment 1201 has the processor system of the various functions of execution (for example) signaling terminal 1201-1 and exchange logic 1201-2.In the illustrated embodiment, the processor system of switching equipment 1201 is carried out the Erlang LISP program LISP.Signaling terminal 1201-1 is being regarded as carrying out signaling terminal 37 functions and local functional processor aspect the switch architecture of group switch.In this respect, (for example connect signaling with regard to agreement signaling terminal 1201-1 termination, No. 7, CCS) and be programmed to the connection signaling is converted to the CP/RP program singal, so that be delivered to the analogue signalling subsystem that exchange primary processor 1200 provides by interface 1233.

The explanation of Fig. 5 A, Fig. 5 B and Fig. 5 C represents that switching equipment 1201 is connected to subscribers feeder.Although expression like this should be appreciated that switching equipment 1201 also can be connected to other switch by trunk line, and this trunk line is not connected to signaling terminal 1201-1 with the connected mode of (for example) ETC 41 in Figure 1A.

The exchange logic 1201-2 of switching equipment 1201 in Fig. 6, be expressed as comprise many to high speed loopback link.For example, loopback link 1201-2-10 and 1201-2-12 constitute first pair; Loopback link 1201-2-20 and 1201-2-22 constitute second pair; Loopback link 1201-2-34 and 1201-2-36 constitute the 3rd pair; And 1201-2-46 and 1201-2-48 constitute the 4th pair.Every pair of loopback link is for increasing or remove professional node service from the loopback link.Node is also referred to as power board, because they can be manufactured on the surface-mounted integrated circuit.Some power boards, for example power board 1201-2-14,1201-2-16 and 1201-2-18 are used for (for example) and connect a loopback to right to another loopback.Some power boards, for example power board 1201-2-28,1201-2-52 are connected to the PCM circuit that (for example) is connected with the user.Exchange logic 1201-2 is subject to processing the control of device 1201-2-32.

Fig. 6 A has represented to select the message of route or the form of grouping 1201-114 by switching equipment 1201.The grouping 1201-114 of Fig. 6 A has Payload 1201-122 and control domain 1201-124.Grouping 1201-114 also has prefix, is made up of various address fields, comprises local address territory 1201-126, intermediate address territory 1201-127 and global address territory 1201-128.Global address territory 1201-128 points to the residing loop of power board; Intermediate address territory 1201-127 points to the particular exchange plate; Local address territory 1201-126 points to specific PCM link.Describing pointer 1201-125 also provides in the prefix of grouping 1201-114.

The notion of switching equipment 1201 is to have the functional object shown in Fig. 6 B.These functional objects with hardware and software in conjunction with realization.Tree configuration exists between the various functional objects of switching equipment 1201.The functional object of switching equipment 1201 comprises power board object 1201-10, is female object of operation system object 1201-11 and resource system object 1201-12.Operation system object 1201-11 is the parents of network interface object 1201-12, and the latter is again as female object of (connection) signal pipe line object 1201-13 and connecting tube object 1201-14.Connecting tube object 1201-14 is the parents of message object 1201-15 and connecting object 1201-16.

Shown in Fig. 6 B, for switching equipment 1201, network interface can dispose with signal pipe line and connecting tube.Every pipeline has all defined bandwidth, generally is 64k bps, i.e. a time slot.Just as used herein, signal pipe line representation signal channel (under each network interface, producing a signal pipe line usually).Connecting tube is represented voice channel.30 connecting tubes of generation under common each network interface (for example, time slot 1-15,17-31).Article one, connecting the single worker who represents between two connecting tubes connects.Connect for duplex, must set up two connections, one in each direction.A connecting tube can have several connections of termination in different connecting tubes.The input sampling then sends to the connecting tube of termination simultaneously.The message representative is towards the output single-tone or the speech message of connecting tube.

Being suitable for being used as the series number that the hardware example of switching hardware unit 1201 submits on December 18th, 1997 is No.08/---(attorney docket 027556-745), be entitled as in the U.S. Patent application of " DEVICE ANDMETHOD RELATED TO TELECOMMUNICATION NETWORKS (Apparatus and method for that telecommunications network is relevant) " and describe, here in conjunction with reference, it is based on International Patent Application PCT/SE97/02085's.

2.2 exchange primary processor

Exchange primary processor 1200A is realized by the industry standard processes device of conventional computer system.Fig. 7 has represented this conventional computer system 110 according to inventive embodiments.Conventional computer system 110 comprises processing unit, and for example CPU 112, corresponds respectively to exchange primary processor 1200A, 1200B, the 1200C of Fig. 5 A, Fig. 5 B and Fig. 5 C.CPU 112 communicates by letter with other component units of conventional computer system 110 by bus 114.Other component units of conventional computer system 110 comprises input equipment (for example, keyboard and pointer (for example, mouse)) 116; Output equipment (for example, display, printer) 118; I/O memory device 120 (for example, disc driver); Read-only memory (ROM) 122; And random access storage device (RAM) 130.Each all is connected to bus 114 by appropriate interface to it will be appreciated by those skilled in the art that these component units.The example of exchange primary processor 1200A is the IntelPentium processor with 256M byte RAM.But, should be appreciated that other high-powered processor also can be used, comprise (advantageously) industry standard processes device.

In embodiments of the present invention, exchange primary processor 1200 is carried out and is used to imitate or the conventional exchange processor of emulation use group switch and the instruction set or the program of subsystem.Exchange primary processor 1200 performed instruction set or the programs of different embodiment are used different language, for example C language.

2.3 access unit

When the access unit 1202A that is connected to switching equipment 1201 is outside with standard interface (for example industrial standard V5 interface) when inserting, use the telecommunications switch of Fig. 5 A.On the other hand, when access unit 1202B is outside with non-standard interface when inserting, use the telecommunications switch of Fig. 5 B.When being line interface base (LIB), uses access unit 1202C the telecommunications switch of Fig. 5 C.

2.4 interface

As shown in Figure 8, interface system 1233 comprises language interface 1233-1 and communication interface 1233-2.As mentioned above, in the illustrated embodiment, analogue system carried out in exchange primary processor 1200 usefulness C voice.On the other hand, in the illustrated embodiment, the software of switching equipment 1201 uses the Erlang language.Therefore, the conversion between C language and the Erlang language is essential and is carried out by C/Erlang interface 1233-1.In some cases, C/Erlang interface 1233-1 is included in the analog subsystem, explains as following.

Communication interface 1233-2 is called as Erlang application programming interfaces (API).C/Erlang interface 1233-1 self simulation unit in the future is that the command conversion that switching hardware system 1201 sends becomes the Erlang API Calls.Erlang API 1233-2 is the program module that operates on the exchange primary processor 1200 and carried out by the Erlang engine.Erlang API goes up at ethernet link (illustrated as link 1203) and uses TCP/IP to communicate by letter with switching equipment 1201.

As mentioned above, if desired, in fact the hardware of the exchange primary processor 1200 of various embodiment can be identical.In all embodiments, exchange primary processor 1200 is carried out the program that is used for simulating a conventional switch part of using group switch.Basic simulation is as described below, and the main distinction of each embodiment is waited attention when appropriate.

2.5 analog processor or subsystem

All exchange primary processors 1200 are all carried out simulation, comprise simulation central processing unit 1234; Simulation group switch subsystem (SGS) 1230, simulation connects signaling subsystem, and interface system 1233.

2.5.1 simulation central processing unit

As shown in Figure 9, simulation central processing unit 1234 comprises dummy instruction processor unit (IPU) 1280; Analogue signal processor unit (SPU) 1284; Simulation program memory (PSU) 1287; Analog references memory cell (RSU) 1288; Analogue data memory cell (DSU) 1289; And simulation local bus processor 1292.In the illustrated embodiment, simulation central processing unit 1234 is simulated APZ212 20 processors, comprises the register of complete instruction set and instruction processing unit unit (IPU) 80.Signal processor unit (SPU) 84 and local are handled processor (RPH) 92 and are all simulated at interface layer.Simulation central processing unit 1234 is designed to carry out at a high speed object code, the i.e. code of analogue system.

Simulation central processing unit 1234 is coordinated the access of telecommunications switch and is carried out basic CCF.The central processing unit 1234 of simulation thinks that this is the group switch of control simulation group switch subsystem (SGS) 1230 representatives.Combine with exchange control, simulation central processing unit 1234 sends the TSM order to simulation group switch subsystem (SGS) 1230, and Zhongdao TSMR simulator 1230-5 carries out the connection by group switch.But as described below, in fact simulation central processing unit 1234 control its connection of working of going forward side by side of alternative switching equipment 1201.

2.5.2 simulation connects signaling subsystem

The difference of the connection signaling subsystem of various embodiment is aspect some of following summary.

In Fig. 5 of telecommunications switch of the present invention A embodiment, the outside that is suitable for standard interface (for example V5) is inserted, and the signaling subsystem that exchange primary processor 1200A is simulated comprises STC analog module 1238.The function (seeing Fig. 1 C) of a part of STC 38 of STC analog module 1238 simulations of Fig. 5 A embodiment.Can recall, signaling terminal 1201-1 provides the function (being similar to the local processor RP among Fig. 1 C) of local processor.

STC analog module 1238 comprises the functional simulation of STCE (STC executive program) and local program CLCR (control signaling link maincenter).The STC executive program provides and connects conversion of signals mechanism between RPB form and the EMRPB form and load management by means of the EMRP (D) that I/O transmits.It also safeguards that to CLCR and RP institute must function provide task management and program to carry out support.Comparable STC simulation details is No.08/887 from the series number of submitting on July 3rd, 1997,653, be entitled as in the U.S. Patent application of " SIMULATION OF COMPUTER-BASEDTELECOMMUNICATIONS SYSTEM (simulation of computer based telecommunication system) " and determine, here in conjunction with reference.

In Fig. 5 of telecommunications switch of the present invention B embodiment, the outside that is suitable for non-standard interface is inserted, and the signaling subsystem that exchange primary processor 1200B is simulated comprises STC analog module 1238 and ETC-S 1239.The STC analog module 1238 of Fig. 5 A embodiment has been simulated the part of functions (seeing Figure 1A) of STC 38.

Simulation ETC-S 1239 among Fig. 5 B can logically think the connection signaling moiety simulation of exchange terminal circuit, for example ETC 40 of Figure 1A.In exchange primary processor 1200A, STC analog module 1238 and simulation ETC-S 1239 direct communication each other, and need not realize ETC and ETB.The simulation STR interface that simulation ETC-S 1239 realizes STC.Interface to EMRP in the STR unit is replaced by the order (by Erlang API 1233-2) to switching hardware system 1201.These orders provide the connection signal message by signal slot on the PCM channel of the switching hardware system 1201 that is connected.CCS 7 agreements in switching hardware system 1201, have been realized for this purpose.

The connected system subsystem that the exchange primary processor 1200C of Fig. 5 C embodiment is simulated comprises EMRP signaling simulator (EMRPSS) 1210.Therefore, EMRP signaling simulator (EMRPSS) 1210 has the function of time switch (TSW) 51 in expansion module local processor (EMRP) 50 and the subscriber exchange.In other words, EMRP signaling simulator (EMRPSS) 1210 is corresponding to user class, except it does not have line interface base (LIB).Connect the signaling I/O and convert the order of switching equipment 1201 to from the AXE program singal, vice versa.Owing between line interface base (LIB) and switching equipment 1201, do not have TSW, therefore come the information of the relevant circuit of self simulation central processing unit 1234 to the time slot mapping, the place that can visit from simulation group switch subsystem (SGS) 1230 is delivered to TSW map unit 1212.

In Fig. 5 C embodiment, TSW map unit 1212 comprises the information of the current circuit of the time switch (TSW) of simulation in the relevant EMRP signaling simulator (EMRPSS) 1210 to the time slot mapping.Simulation group switch subsystem (SGS) 1230 needs the TSM order of this map information mapping from the simulation central processing unit 1234 of Fig. 5 C embodiment.

2.5.2 simulation group switch subsystem

Figure 11 has represented to be suitable for the embodiment of the simulation group switch subsystem (SGS) 1230 that is used in combination with the exchange primary processor 1200 of various embodiment described herein.Specifically, simulation group switch subsystem (SGS) 1230 comprises command interpreter 1230-1; Hardware configuration module 1230-2; TSMR signaling interface 1230-3; CLTR signaling interface 1230-4; TSMR simulator 1230-5; Path simulation device 1230-7; CLTR simulator 1230-8; And transducer 1230-9.

As shown in figure 10, except other module of simulation group switch subsystem (SGS) 1230, simulation central processing unit 1234 is also simulated the kernel software (for example seeing Figure 1A) [being expressed as TSMU and CLTU in Figure 10 respectively] of CP 34 and TSM 72 and CLT 74.Because this situation need not simulated TSMU and CLTU function in simulation group switch subsystem (SGS) 1230.Figure 10 has also represented the performed time switch function of software of TSMU functional simulation central processing unit 1234; The TSMR function is the performed time switch function of software of simulation local processor.The CLTU function is the performed time clock feature of software of simulation central processing unit 1234; The CLTR function is the performed time clock feature of software of simulation local processor.Figure 10 represents TSMU and the execution in simulation central processing unit 1234 of CLTU function, simulation group switch subsystem (SGS) 1230 simulation local softwares (being TSMR and CLTR) and hardware (for TSM and CLM).

Command interpreter 1230-1 comprises the routine of the hardware configuration order of handling relevant switching equipment 1201 or simulation group switch hardware.Command interpreter 1230-1 can be commercially availabie and/or the standard commands processor, for example known TCL.

Hardware configuration module 1230-2 is the function of management simulation group switch hardware, and promptly the data structure of memory distribution and simulation TSM and their local processor (RP) of control generates.In addition, hardware configuration module 1230-2 uses Erlang API 1202 to call (by C/ErlangI/F 1202-1) and sends configuration information (seeing Figure 11 and Figure 11) to switching hardware system 1201.TSMR signaling interface 1230-3 is a function of handling the CP-RP program singal that sends between TSMR simulator 1230-5 and the simulation central processing unit 1234.

CLTR signaling interface 1230-4 is a function of handling the CP-RP program singal that sends between CLTR simulator 1230-8 and the simulation central processing unit 1234.TSMR simulator 1230-5 is the function of the necessary unit of simulation TSMR local software.

TSMR simulator 1230-5 is the function of the necessary unit of simulation TSMR local software.

Thereby path simulation device 1230-7 is a function of analyzing these paths by the propagated inband signaling among the transducer 1230-9.

CLTR simulator 1230-8 is the function of emulation CLTR local software elementary cell, for example safeguards the state of CLMS.

Embodiment for Fig. 5 C, line interface base (LIB) 1300C is connected to switching hardware system 1201, and the circuit actual mapping in crack then not necessarily is equal to simulation central processing unit 1234 for being included in the mapping that the simulation TSW in the module EMRP signaling simulator (EMRPSS) 1210 is set up on the PCM channel.In order to solve this situation, TSMR simulator 1230-5 obtains the TSW mapping and uses it to change the group switch order of self simulation central processing unit 1234 from TSW map unit 1212.

In (non-simulation) telecommunications group group switch of reality, exchange is finished by writing the TSM memory.Explain that as following the simulation group switch subsystem (SGS) 1230 that half module is intended system 1200 comprises transducer 1230-9, the instruction transformation that writes the TSM memory is become to be dealt into the order of switching hardware system.

3.0 the operation of switch of the present invention

In operation, exchange primary processor 1200 is carried out first language (for example C language) simulation program, makes the part of the telecommunications switch of the use group switch that exchanges primary processor 1200 emulation routines.Particularly, simulation program makes the central processing unit 34 of the conventional switch of exchange primary processor 1200 emulation (in the middle of other processor and subsystem).The instruction that simulation central processing unit 1234 advantageously is implemented as conventional switch central processing unit coding realizes re-using of conventional switch operating system complex logic by this.By doing like this, the switch of its management of simulation central processing unit 1234 supposition has group switch.But, having group switch (may than required maybe can bear much bigger and expensive) with it, switch is not as having above-mentioned switching equipment 1201.

For the switching equipment (switching equipment 1201 for example of the present invention) of compatibility simulation central processing unit 1234 (it has advantageously re-used the logic with conventional switch instruction set encoding) and non-group switch type, the exchange primary processor provides the adaptive of interface shape and conversion.

3.1 configuration is set up

The operation of two class basic configuration is that the telecommunications switch among Fig. 5 A, Fig. 5 B and Fig. 5 C is necessary.The configuration of one class is the configuration of switching equipment 1201.The configuration of second class is the configuration of TSMR simulator 1230-5.

Switching equipment 1201 can be flexibly, so that the connection that processing parameter (for example speed) changes.In this case, switching equipment 1201 wishes that external user is by stipulating to dispose switching equipment 1201 via the connection parameter (for example speed) of switching equipment 1201 Route Selection.With the mode of following understanding, the configuration order that use is input to call allocation device (seeing Figure 11), these parameters are delivered to switching equipment 1201.

As implied above, exchange primary processor 1200 provides the simulation group switch subsystem (SGS) 1230 of artificial actual group switch.Although in fact do not use group switch (but switching equipment 1201), simulate group switch subsystem (SGS) 1230 and must know that it answers the various features and the structure of the group switch of emulation.For example, with reference to figure 4, simulation group switch subsystem (SGS) 1230 TSMR simulator 1230-5 must know related local processor number, these local processors address, emulation group switch size (for example, its space switching module (SPM) number and to its relation [seeing, for example Fig. 3 and Fig. 4] of time division switch module (TSM)).In addition, when setting up, the memory configurations of the simulation group switch subsystem (SGS) 1230 among the TSMR simulator 1230-5 must initialization (so that reflection connection is everywhere removed, promptly not carrying out any connection as yet).In fact, the TSMR simulator 1230-5 of configuration simulation group switch subsystem (SGS) 1230 is similar to the physical surface of setting up the group switch kernel.

Use configuration order to operate necessary configuration data to simulation group switch subsystem (SGS) 1230 inputs two class basic configuration.Configuration order is imported by call allocation device (seeing Figure 11), and is passed to the command interpreter 1230-1 of simulation group switch subsystem (SGS) 1230.When order was interpreted as configuration order by command interpreter 1230-1, configuration messages just was sent to hardware configuration module 1230-2.

Hardware configuration module 1230-2 sends the configuration messages of expression emulation group switch structure and feature to TSMR simulator 12230-5.Set up switching equipment 1201 necessary configuration messages and be routed to switching equipment 1201 by hardware configuration module 1230-2.

Call allocation device, command interpreter and the use of hardware configuration module 1230-2 aspect configuration have been described with above-mentioned basic terms.But it should be understood that by similar action different command and message, also can change the emulation group switch configuration of---for example TSMR simulator 1230-5---.In the time of switching equipment before the switching equipment 1201 that for example this change can appear at dissimilar or different models substitutes.

Connect 3.2 set up and remove

Suitable connection signal with from access unit 1202 inputs begins to manage to set up a connection by the switch of inventive embodiments.

3.2.1 signal processing

Request connects the connection signal of setting up (for example, off hook signal) and receives at the port one 201-4 of switching equipment 1201.Request connects the connection signal of setting up and uses the CCS7 common channel signaling No.7 system to be routed to Signal Terminal 1201-1 by the signaling channel of exchange logic 1201-2.On the agreement meaning, among Fig. 5 A embodiment, connect signal in Signal Terminal 1201-1 termination, and convert the CP/RP program singal to.Is the Erlang language at Signal Terminal 1201-1 by the CP/RP program singal that conversion produces, and therefore must convert the used C language of exchange primary processor 1200 to.Therefore, the CP/RP program singal that Signal Terminal 1201-1 produces for example passes through Erlang API 1233-2 and C/Erlang interface 1233-1 through interface 1233 shown in Figure 8.

For example in the exchange primary processor 1200A of Fig. 5 A embodiment, the CP/RP program singal of the connection signal that connects corresponding to request is handled in the mode of the STC38 (seeing Fig. 1 C) of their institute's emulation by STC analog module 1238, and is forwarded to simulation central processing unit 1234.How 1234 of central processing units of simulation are determined to think that by simulation central processing unit 1234 group switch that constitutes a telecommunications switch part sets up this connection.Regarded thisly when definite, simulation central processing unit 1234 sends the CP/RP program singals to simulation group switch subsystem (SGS) 1230, realizes determined access path by group switch.But explain that as following in fact the CP/RP program singal of realizing determined access path by group switch is converted into by switching equipment 1201 sets up this connection.

3.2.1 connection by electric wire connecting junction

As mentioned above, simulation central processing unit 1234 determines how to connect by group switch, and simulation central processing unit 1234 thinks that it is at the control group switch in thinking.The path of setting up by group switch is in order to connect two users, for example sub-A and sub-B.Carried out this determine after, as shown in Figure 13, simulation central processing unit 1234 sends a series of exchange control messages 13C to simulation group switch subsystem (SGS) 1230, arrives first TSMR signaling interface 1230-3 specifically most, arrives TSMR simulator 1230-5 at last.The exchange control messages has the form of CP/RP program singal.

Simulation central processing unit 1234 produces the instruction that the exchange control messages is actually the control storage that writes appropriate time division switch module.For example, the exchange control messages 13C-1 by 13C-4 is used to set up the connection from user sub-A to user sub-B; Exchange control messages 13C-5 by 13C-8 is used to set up the connection from user sub-B to user sub-A.

Specifically, in order to connect to user sub-B from user sub-A, exchange control messages 13C-1 writes the appropriate time slot among the control storage CSA of the TSM under the access customer sub-A.Exchange control messages 13C-2 writes the space switching module CSC of the TSM under the access customer sub-A.Exchange control messages 13C-3 writes the appropriate time slot among the control storage CSB of the TSM under the access customer sub-B.Exchange control messages 13C-4 writes the space switching module CSC of the TSM under the access customer sub-B.

In order to connect to user sub-A from user sub-B, exchange control messages 13C-5 writes the appropriate time slot among the control storage CSA of the TSM under the access customer sub-B.Exchange control messages 13C-6 writes the space switching module CSC of the TSM under the access customer sub-B.Exchange control messages 13C-7 writes the appropriate time slot among the control storage CSB of the TSM under the access customer sub-A.Exchange control messages 13C-8 writes the space switching module CSC of the TSM under the access customer sub-A.

TSMR signaling interface 1230-3 (seeing Figure 11) is corresponding to the part of the group switch local processor (GSRP) 32 of communicating by letter with central processing unit 34 (seeing Figure 1A).When TSMR signaling interface 1230-3 detected some exchange control messages 13C, TSMR signaling interface 1230-3 carried out Route Selection with this exchange control messages as of correspondence in the message 13I of TSMR simulator 1230-5 (seeing Figure 11).TSMR simulator 1230-5 corresponding to conventional group switch (see, for example, group switch local processor (GSRP) 32 Figure 1A) and the remainder of time division switch module (TSM) 72.

TSMR simulator 1230-5 knows that in fact the central processing unit of being simulated do not control group switch, but the switching equipment of another kind of type.Therefore, TSMR simulator 1230-5 sends the exchange control messages (13S represents with message) of its version to transducer 1230-9.

At this moment, the exchange control messages still is understood that the control storage write command to the time division switch module of group switch (for example, the electric wire connecting junction of T-S-T type).The appropriate exchange control messages that transducer 1230-9 receives these exchange control messages (now by message 13S representative) and prepares to be understood by switching equipment 1201 (particularly being the exchange logic 1201-2 of switching equipment 1201).

Connection in the exchange logic 1201-2 of switching equipment 1201 is set up by a series of Erlang language function calls, particularly be a series of CREATE function calls that comprise following parameter list: CONNECTION, { PARENT_ORIGINATING, PARENT_TERMINATION}.The CONNECTION parameter refers to connect the fact that is established.The PARENT_ORIGINATING parameter refers to the connecting tube of calling party (sub-A); The PARENT_TERMINATION parameter refers to the connecting tube of called subscriber (sub-B).

With reference to the exchange logic 1201-2 of switching equipment 1201 shown in Figure 6, each relevant user's connecting tube is identified by four territories: global address territory 1201-128 points to the residing loop of power board of service-user; Intermediate address territory 1201-127 points to the particular exchange plate of service-user; Local address territory 1201-126 points to the specific PCM link or the connecting tube of service-user; Pointer 1201-125 described be the time slot on the PCM link that is assigned to the user.

In order to carry out the conversion from the exchange control messages of group switch to the exchange control messages of switching equipment 1201, transducer 1230-9 will simulate the control storage information mapping of group switch to four used address fields of exchange logic 1201-2.By doing like this, the CSC space switching module sign that transducer 1230-9 uses CSC to write the addressing of message institute is defined as the power board address of the power board of user's service, the i.e. value of intermediate address territory 1201-127.The position that CSC writes the mentioned specific space switching module (SPM) of message is used for determining the user belongs to which loop of exchange logic 1201-2, i.e. the global address territory 1201-128 that the user can addressing.For example, be example with reference to figure 4, if CSC writes first row of the mentioned specific space switching module (SPM) of message at the SPM matrix, transducer 1230-9 can know that user's power board is in first loop of (for example) exchange logic 1201-2.The value that writes non-CSC control storage (for example CSB) is the indication for the specific PCM link of user service, for example points to the local address territory 1201-126 of the specific PCM link (being connecting tube) among the exchange logic 1201-2 of service-user.Transducer 1230-9 is exchanged ad-hoc location or the time slot in the control storage of the specific PCM link that control messages influences by visit, be identified for the time slot value that time slot is described pointer 1201-125.When changing in the above described manner, as shown in figure 13, transducer 1230-9 carries out the function call 13F to switching equipment 1201.Function call is an Erlang CREATE function call, has above-mentioned CONNECTION and { PARENT_ORIGINATING, PARENT_TERMINATING} parameter.For each PARENT_ORIGINATING and PARENT_TERMINATING parameter, promptly, provide above-mentioned four address fields (global address territory 1201-128 among user sub-A and the user sub-B each; Intermediate address territory 1201-127; Local address territory 1201-126; And time slot is described pointer 1201-125).

Therefore transducer 1230-9 has carried out the language conversion of the Erlang language that uses from C language (mainly being used by exchange primary processor 1200) to switching equipment 1201.In this respect, in fact to have as C/Erlang interface 1233-1 be the function of this function call service to transducer 1230-9.

When receiving CREATE function call 13F, the exchange logic 1201-2 of switching equipment 1201 carries out the connection by switching equipment 1201.Connection by switching equipment 1201 can simulated the reverse dismounting of appropriate exchange control messages that central processing unit 1234 sends.With to the similar mode of exchange control messages that connects, the exchange control messages that remove to connect is routed to transducer 1230-9, so that can carry out equal mapping.When connection was removed, transducer 1230-9 carried out the Erlang language RELEASE function call to switching equipment 1201.

4.0 the conversion that increases

As implied above, in order to utilize the logic that perfects of the conventional switch that uses group switch, simulation central processing unit 1234 receives the instruction of switch operating system (for example, the APZ operating system in the illustrated example) instruction set encoding that uses group switch.The instruction of simulation central processing unit 1234 employed APZ codings converts the instruction that exchange primary processor 1200 can be carried out to by exchange primary processor 1200, particularly is exactly the machine language instruction that exchanges primary processor 1200.

The switch technology that increases is exchanged primary processor 1200 and is used for and will uses the machine language instruction of instruction transformation conclusion of the business change owner processor 1200 of instruction set encoding of the switch operating system of group switch.The series number that the switch technology of this increase was submitted on June 13rd, 1997 is No.08/874,660, be entitled as in the U.S. Patent application of " SIMULATION OF COMPUTER PROCESSOR (computer processor simulation) " and describe, here in conjunction with reference.Following the providing of simplified summary of conversion is provided.

As what schematically describe among Fig. 7, RAM 130 comprises a plurality of routines and zone (for example, section or table).For example, object code district 132 is also referred to as the target instruction target word memory, is used to be stored as the storage programming instruction of simulation central processing unit 1234 codings.The target instruction target word (for example, the APZ instruction among the illustrated embodiment) that is stored in RAM 130 object code districts 132 generally obtains from exterior storage medium (for example, by I/O memory device 120), shifts according to necessity, for example caches to RAM 130.Therefore, target instruction target word is according to the format of simulation central processing unit 1234 instruction set.The target instruction target word of storage is used to make simulation central processing unit 1234 to carry out it to the emulation of illustrated embodiment based on the telecommunications switch part of group switch in the object code district 132.But the target instruction target word of storage then is to convert the instruction (for example, Intel Pentium machine language instruction) that exchange primary processor 1200 can be understood to by exchange primary processor 1200 in the object code district 132, so that carry out emulation.

Being included in equally among the RAM 130 is the various program routines that exchange primary processor 1200 is carried out, and comprises emulation/simulation monitoring routine (ESR) 133; Decode routine 134; Conversion routine 135; And emulation executive routine 136.In addition, RAM 130 has stored transfer table 140 and emulator command memory block 142.

Figure 12 represents how emulation monitoring routine is coordinated object code (for example, the APZ code of simulation central processing unit 1234 execution) and converted the emulator command of exchange primary processor 1200 and the streamline or the increase performance of execution to.Briefly, when 133 definite times of getting target instruction target word from object code district 132 of emulation monitoring routine arrived, the object code of being got was analyzed by decode routine 134.Understand the decode routine 134 of target instruction target word structure set, decompose target instruction target word of being got and the type of determining it, for example whether fetched instruction is " increase register " instruction that increases by two content of registers, " moving " of a content of registers being moved into another register or address instructs, or the like.The understanding in territory is concentrated in the analysis of the target instruction target word of getting based on 134 pairs of scheduled operation codes of decode routine and target instruction target word.By means of the analysis that decode routine 134 is carried out, conversion routine 135 has been set up one group of emulator command collection that is stored in the emulator command district 142.The emulator command collection that is stored in the zone 142 formats in the instruction set of exchange primary processor 1200.The configuration of the emulator command that produces for getting target instruction target word make 1200 carry out target processors carry out identical action when getting target instruction target word.Emulation executive routine 136 obtains exchanging the emulator command that primary processor 1200 is carried out from zone 142.When emulation executive routine 136 need to determine more emulator command to fill emulator command memory block 142, just conversion routine 135 is produced an interruption, shown in circuit among Figure 12 150.According to this interruption, obtain more target instruction target word, and decoding and conversion, so that offer emulator command memory block 142.

5.0 finish

It should be understood that telecommunications switch of the present invention can be used as the telecommunication node operation of any type.For example, telecommunications switch of the present invention can be used as local switch, transit exchange, even in the node of intelligent network (for example, Service Switching Point [SSP] and service control point [SCP]).In addition, telecommunications switch of the present invention can be included in the node of cellular telecommunication network, for example base station controller node and mobile switching centre's node, even in home location register and Visited Location Registor node.

Access unit 1202A, the 1202B of Fig. 5 A and Fig. 5 B embodiment can be connected to respectively on the circuit that different kinds of business is provided, for example POTS, ISDN.

Although having represented to exchange primary processor 1200, illustrated embodiment (for example uses different programming languages with switching equipment 1201, be respectively C and Erlang), but should be appreciated that they also can use another kind of programming language, perhaps exchange primary processor 1200 and can use identical programming language with switching equipment 1201.

In addition, although carried out to illustrate based on the simulation of a group switch telecommunications switch part, should be appreciated that this analog functuion also can be distributed in two or more language of identical or different processor according to 1200 a kind of programming languages of usefulness of exchange primary processor.For example, some simulations can be carried out by the processor of switching equipment 1201, for example use the Erlang language.In this case, the change of any language interface (for example C/Erlang interface 1233-1) position should correspondingly be carried out.

In illustrated embodiment, for the sake of clarity, exchange primary processor 1200 has been expressed the outside of equipment 1201 in return.Should be appreciated that, exchange primary processor 1200 in other embodiments or its performed function can be in the switching equipment 1201, for example on the plate of switching equipment 1201.In other words, some or all half modules plan functions of exchange primary processor 1200 execution can be included in the switching equipment 1201.

Telecommunications switch of the present invention use easily can buy on open platform, industrial standard, the market processor and be based upon the logic of using customization flush bonding processor coding used usually in the group switch telecommunications switch.

In addition, the component units of telecommunications switch of the present invention---exchange primary processor 1200, switching equipment 1201 and access unit 1202---needn't all be provided by same manufacturer.

Although the preferably single processor of the exchange primary processor 1200 of telecommunications switch of the present invention, such restriction is not done in invention.On the contrary, as described herein-in, the operation that exchanges primary processor 1200 if necessary can be distributed in a plurality of processors.

The present invention makes telecommunications operator or service supplier set up less relatively and not too expensive telecommunications switch may not needing bigger capacity and/or the irrational place of cost based on the group switch telecommunications switch.Yet demand and/or economic change may make the use of group switch become rationally, for example need to serve more user or connection.In this case, exchange primary processor 1200 and switching equipment 1201 are substituted by equal physical set group switch unit, for example those shown in Figure 1A and Figure 1B.But in this case, employed access unit 1202 can keep before the switch.The reservation of access unit 1202 in this escalation process is very beneficial, because access unit 1202 has been represented the cost of whole telecommunications switch basically.

Although invention, should be appreciated that invention is not limited to the embodiment that is disclosed in conjunction with thinking most realistic at present and preferred embodiment is described, opposite spirit and interior contained various modifications and the equivalent device of scope of wishing to comprise claims.

Claims (36)

1. a telecommunications switch comprises:

The switching equipment of the first kind connects the selection route by it to telecommunications;

Access unit is connected to telecommunications network with switching equipment;

The exchange primary processor produces the exchange control messages to the second class switching equipment, but conversion exchange control messages is used for first kind switching equipment.

2. the device of claim 1 wherein exchanges the part of the telecommunications switch of primary processor emulation and first kind switching device interface.

3. the device of claim 2, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises central processing unit.

4. the device of claim 3 wherein when the emulation central processing unit, exchanges the instruction that primary processor converts the coded command of central processing unit execution to the execution of exchange primary processor.

5. the device of claim 4 wherein exchanges primary processor and carries out the increase conversion of the coded command of central processing unit execution to the instruction of exchange primary processor execution.

6. the device of claim 2, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises the subsystem of central processing unit, at least one local processor and the second class switching equipment.

7. the device of claim 1 wherein exchanges the instruction that primary processor is carried out first programming language, and first kind switching equipment carries out the instruction of second programming language, and comprises the interface between exchange primary processor and the switching equipment.

8. the device of claim 1, wherein the second class switching equipment is a group switch.

9. the device of claim 1, wherein first kind switching equipment is a switch of handling grouping.

10. the device of claim 1, wherein the second class switching equipment has bigger connection capacity than first kind switching equipment.

11. the device of claim 1, wherein telecommunications switch is one of local switch, transit exchange, intelligent network node and cellular telecommunication network node.

12. the device of claim 1, wherein access unit combined standard interface operation.

13. the device of claim 1, wherein access unit is operated in conjunction with non-standard interface.

14. the device of claim 1, wherein access unit comprises line interface base.

15. the device of claim 14 wherein exchanges primary processor and carries out local time switch mapping function.

16. the device of claim 1, wherein exchanging primary processor is the open platform processor.

17. the device of claim 1, wherein exchanging primary processor is the outside of switching equipment.

18. the device of claim 1 wherein exchanges primary processor and comprises the transducer that the exchange control messages of the second class switching equipment is converted to the used exchange control messages of first kind switching equipment.

19. be stored in the execution in step program in the internal memory of operating telecommunications switch, this program can be carried out on processor, program produces the exchange control messages of the second class switching equipment by this, but conversion exchange control messages is used for first kind switching equipment.

20. the program of claim 19, the wherein part of the telecommunications switch of this procedure simulation and first kind switching device interface.

21. the program of claim 20, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises central processing unit.

22. the program of claim 21, wherein when the emulation central processing unit, the coded command that the exchange primary processor is carried out central processing unit converts the instruction that the exchange primary processor is carried out to.

23. the program of claim 20, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises the subsystem of central processing unit, at least one local processor and the second class switching equipment.

24. the program of claim 19, wherein the second class switching equipment is a group switch.

25. the program of claim 19, wherein first kind switching equipment is a switch of handling grouping.

26. the program of claim 19, wherein the second class switching equipment has bigger connection capacity than first kind switching equipment.

27. the program of claim 19, wherein telecommunications switch is one of local switch, transit exchange, intelligent network node and cellular telecommunication network node.

28. the program of claim 19, wherein program is carried out on the open platform processor.

29. a method of operating telecommunications switch, method comprises:

The control messages used according to first kind switching equipment connects the selection route by first kind switching equipment to telecommunications;

Use access unit that switching equipment is connected to telecommunications network;

Use the exchange primary processor, the second class switching equipment is produced the exchange control messages.

Conversion exchange control messages is used for first kind switching equipment.

30. the method for claim 29 wherein exchanges the part of the telecommunications switch of primary processor emulation and first kind switching device interface.

31. the method for claim 30, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises central processing unit.

32. the method for claim 31, wherein when the emulation central processing unit, the coded command that the exchange primary processor is carried out central processing unit converts the instruction that the exchange primary processor is carried out to.

33. the method for claim 30, a part that wherein exchanges the telecommunications switch of primary processor emulation comprises the subsystem of central processing unit, at least one local processor and the second class switching equipment.

34. the method for claim 30, wherein the second class switching equipment is a cohort.

35. the method for claim 30, wherein first kind switching equipment is a switch of handling grouping.

36. the method for claim 30, wherein the conversion of the used exchange control messages of first kind switching equipment is undertaken by the exchange primary processor.

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