Telecommunication system and commutation network therefor

Invenfia refer! to a telecommunications system. The invention in particular, but not exclusively, I mean! to a telecommunication system for mobile phones.

In standard terrestrial telecommunication systems, calls are transferred from one fixed point to another, and in this way it is relatively easy to use the communication path for such types of calls. The source of the call introduces into the system the information (usually the phone number of the destination) in which the routing information! it's arranged! sequentially. Therefore, for the system it is relatively simple to have the necessary switching! for the realization of the route, by successfully decoding the input information devices. Any necessary switching point is considered only part of the information.

If the telecommunication system also includes mobile phones, the situation is much more complicated, because the call to a mobile phone is not a water to a fixed point, and therefore the system must be! determine the position of the destination. Currently, a water to a mobile phone is made by sending a signal to the Home Location Register unit (HLR) that they own! the position of the mobile phone and in this way allows the distribution of the call.

It is known the telecommunication system containing a communication device of the base stations! (related to cell phones) and the cellphone relay [1].

Solufia close! is the telecommunications system that ensures! the operation of mobile telephones and which confines a subscriber location (HLR) module, the module being intended for storing data on the connections regarding one or more appropriate telecommunication devices and means of securing the connections, for the use of data on the connections in the data storage module (HLR) for forming the telecommunication link with one or more telecommunication devices [2].

Inevitably, the HLR module has о limited capacity! and therefore some arrangements are needed to allow the telecommunications system access to multiple HLR modules. At first glance, all that is required for this - to provide as many HLR modules as possible and to assign different mobile phone numbers to different HRL modules.

However, this fact does not correspond to the purpose of ensuring the flexibility of customers in a mobile phone system. Each mobile phone has two! types of numbers associated with it, the first being the number used by third parties to call the mobile phone (MSISDN) and the second being the identification number (IMSI) that is used by the telecommunications system to address the mobile phone. By using the existing techniques, the information regarding both these numbers must! be stored! in the same HLR mode.

It is expected! c! more MSISDN numbers may be required for users, for example, if! user wants s! AIB! the possibility of communication of both types, and voice and data, in existing systems, every second MSISDN number with common identification number (IMSI) must be! either an MSISDN number of the same HLR module as the previous MSISDN number. This would be impossible to achieve if, for example, the HRL module that confines the original information! is completed. in this way, the only method! whereby additional services may be provided would require the user to change the telephone number, which would be undesirable. This is coming о problem! particular! if it is more preferable for users to! AIB! the ability to choose numbers, instead of! either make sure with them.

The problem I solve! invention const! in extending the technical possibilities of the telecommunication system and removing the mentioned deficiencies.

For this purpose, the commutafia network for a telecommunications system, which includes two! or more mobile telecommunications devices, two! or more data storage (HLR) modules on connections to one or more appropriate telecommunications mobile devices, and holding the location of one or more mobile telecommunication devices and means for securing connections for the use of data on the connections in the data storage module (HLR) for forming the telecommunication relationship with one or more mobile telecommunication devices, additionally the refea is equipped! with a data recording module about the interconnection between the data storage modules, and with one or more identification codes; with means of entering the identification code; with switching modules for interrogating the registration module for detaining the data storage modules (HLR), associated with this identification code, and with means for modifying the data about the interconnection, stored in the registration module, in which means of securing the connection are configured so that the recording module is

MD 1845 F2 2002.01.31 switches to form the connection to one or more appropriate telecommunications mobile devices, using the connection data when the data storage module related to this identification code has been determined.

In the switching network, also, the connection data is the data indicating the position of one or more mobile telecommunications devices.

In addition, the switching network includes the recording module that stores the additional information related to the mobile telecommunications devices, the switching network including means for querying the recording module in response to the extra information extraction signal associated with a specified mobile telecommunications device, linking means that connect the linking channel according to the additional information.

The switching network further includes means for modifying the aforementioned additional information.

for the same purpose, the telecommunication system is characterized by the fact that it incorporates a switching network according to the invention.

In the telecommunication system according to the invention at least a few telecommunication devices are mobile phones.

In addition, in the telecommunications system at least a few telecommunications devices are associated with the services offered to the subscriber.

In order to solve these problems, the present invention proposes that the switchgear network that connects users with alfi users, with HLR modules and system services, to have associated a registration module, which confines the information about the correspondence of each phone book with one of the modules. HLR. The relationship between phone numbers and HLR modules must then be easily selectable in the registration module, so that the registration module acts as a converter between numbers and the information identifying the HLR module.

The result of installing such a recording module and a new set of elements is that the fixed relay between the numbers and the HLR modules is destroyed, and as a result any nuisance can be assigned to any HLR module, which implies the release of the lightning bolt.

The registration module can also store additional information regarding mobile phones that would allow the switchgear relay to direct calls from mobile phones to different services, depending on the mobile phone itself in the water, in addition to the number chosen.

Example L Different mobile phones offered by different organizations (Service Providers) will be able to use the same generic access code, for example 150, to call the parent organization regarding payment questions. It is convenient if such services are accessed through numbers independent of the organization providing the service. in this way, a water from a mobile phone to such a service triggers a signal to the recording module that generates the information that identifies the service unit associated with that number for the particular mobile phone. This identifying information can then be sent back to the communication refinery to allow the call to be sent to the correct service unit.

Example 2. The users will have the possibility to access the voice mail in the respective personal mailboxes by collecting the generic access code, for example 123, the registry ensuring the information needed to send this water.

In any case, the system can be adapted so that if the user uses a public telephone instead of his mobile phone, he can manually communicate to the switchgear relay the information sufficient for the switchgear to obtain from the registration module the additional information regarding the switchgear. the user's mobile phone.

For the registration module there is an additional possibility to use the additional information regarding mobile phones more in terms of calls to phones, than those from phones. For example, the additional information may be sufficient to reorient the connection path originally intended to establish a connection with a given mobile phone, if this mobile phone is not accessible, for example, because it is busy or defective, or because the subscriber does not want to to answer. Such a system can operate in situations when, for example, a subscriber tries to establish a connection with a mobile phone that is currently inaccessible; in this case the switchgear can redirect the call to the appropriate service, as is the voice mail service.

By using the present invention the telecommunication system can be endowed with many useful features. If there is a defect in the module of the mobile phone, which identifies the mobile phone (this module is called SIM), this module can be replaced very quickly. using

MD 1845 F2 2002.01.31 The proposed invention, even if the subscriber will receive a new IMSI identification number that refers to another HLR module than the previous IMSI identification number, the subscriber does not need to change his phone number (MSISDN number) because the re-assignment to a new HLR module can be performed by the registration module.

In this way, any telephone number (MSISDN number) can be used to identify any subscriber.

The following is a more detailed description of the present invention, with examples and references to drawings in which:

FIG. 1 represents the schematic block diagram of the telecommunication system realized in the present invention;

FIG. 2 presents in more detail the part of the telecommunication system in fig. 1.

In conjunction with fig. 1, the switching network 1 interconnects ordinary phones and mobile phones. If water from a regular telephone arrives on a mobile phone, this water is transmitted through the public telephone switching network (PSTN) 2 to the switching network, and from this switching network 1 to the mobile phone (BSS) 3. In order to do this, switching network 1 must obtain the route information, and to determine this route information the switching network must determine the position of the mobile phone 3, which is done through the HLR module to which the mobile phone is associated. 3. In the case of several HRL 4, 5 modules for switching network 1, it is necessary to determine which HRL 4, 5 module should be accessed, based on the telephone number (MSISDN log) of the mobile phone picked up by the water subscriber.

In accordance with the present invention, the switching network 1 has access to a registration module 6, which identifies the called number and addresses it to a certain HLR module 4, 5 to which the mobile phone is associated. 3. The registration module 6 allows free detention of the relationship between any mobile phone bookcase and the HLR 4, 5 modules, so the number does not depend on a specific HLR 4, 5 module, to which it is associated. Registration module 6 excludes the need for a particular mobile phone logger to be associated with a fixed HLR 4, 5 module.

When given the identification of some HLR module 4, 5 with which the mobile phone 3 is associated, in this HLR module certain signals arrive, and from it the information is received in the usual way. This information is used to establish the route of the call to the mobile phone 3, which can then be transmitted normally.

Similarly, if the call is generated by the mobile phone 3, the switching network 1 must again determine the path of this water. If the call is addressed to a stationary telephone connected to the switching network 1 through PSTN 2, then the route is normally organized on the basis of the telephone number.

If the call is made from a mobile phone 3 to one of the set of voice processing systems (VPS) 7, 8 or to the services 9 associated with the switching network by using a short code (for example, 123), the relationship between the mobile phone 3 and the corresponding service must be determined by the registration module 6 before the switching network can determine the corresponding voice processing system 7, 8 or the service 9 to be accessed.

It is necessary to mention that the structure of the existing systems is similar to the one presented in fig. 1, except that in the existing systems the registration module 6 is missing and only one HLR module is present. Thus, existing systems do not need to determine which HLR module should be accessed, because there is only one HLR module. For the application of the present invention, the switching network 1 accesses the recording module 6 for the processing of all calls, which leads to the transmission of the query signals to the HLR module in the existing structure in order to determine which of the set of HLR modules 4, 5 must be accessed. . In this way, the implementation of the present invention is related to the installation of the registration module 6 and the respective programming of the switching network 1.

In FIG. 2 is represented in more detail the switching network 1. In its composition there are many mobile switching centers (MSCs) 10, 11 and 12, and a water intended for a particular mobile phone generates the signaling between these MSC centers 10, 11 and 12 and one of the multiple signal transfer points (STPs) 13, 14, the signals from which are transmitted to the recording module 6 to determine the HLR module 4, 5 which corresponds to the mobile phone 3. Registration module 6 holds the necessary information from the telephone number (MSISDN number) of the mobile phone 3. After that, for registration module 6 it becomes possible to send the necessary signals directly to the corresponding HLR modules 4, 5, but, as represented in

MD 1845 F2 2002.01.31 в

Fig. 2, it is preferable for the information to return to the corresponding STP point 13, 14, which in turn transmits the signals to the HLR mode 4, 5 correctly.

A similar signaling flow is observed when the mobile phone user 3 tries to access one of the voice processing systems (VPS) 7, 8. The call is received by one of the MSC centers 10, 11 and 12 which transmit the collected numbers and mobile phone identification information at one of the STP points 13, 14, 15. As a result, the information is transmitted to the recording mode 6, which uses this information to calculate the correct address of the voice processing service (VPS) 7, 8. This information is transmitted back from the registration mode through a STP point 13, 14, 15 to the original MSC center 10, 11, 12. After that, the obtained address is used by the switching network 1 to direct the call. As a result, the call is transmitted from the corresponding MSC center 10, 11, 12 through the switching network (including TCS switching centers 15, 16) to the corresponding VPS service 7, 8.

The signal that is transmitted by the mobile phone in the switching network and after which the mobile phone is recognized, does not have to be fixed, but it can also be altered, for example, by inserting the data transmission card into the phone. In this way, a subscriber can identify himself in the switching network by inserting in his mobile phone a personal card that identifies him, with the subsequent referral to the corresponding VPS service based on the identification data of the subscriber.

The possibility of orienting the calls to the VPS service by using the information in the registration mode 6 allows the location of the individual voice processing services (such as the mailboxes) in the places that have the maximum geographical position near the areas of predominant use of the mobile phone. This can substantially reduce the cost of transporting the call.

Moreover, if the predominant position of the mobile phone changes, it is more convenient to use VPS services 7, 8 different, and then these changes can be recorded in the recording mode 6. The subscriber in the water can still access his VPS service its (now located elsewhere) without changing the number used to call the service. Similarly, if the mobile phone user transfers from one service system to another, the recording mode 6 can accommodate these changes without the user having to pick different numbers. in this way, for example, in the localities where there are several service systems and the mobile phone user switches from one service system to another, for this user it is not necessary to collect different numbers in order to gain access to a new system. service. On the contrary, the same numbers can be used, and the new orientation of the call is guided by the signals transmitted between the MSC center 10, 11, 12 and the recording mode 6.

Switching station 1 can also use the information about mobile phones in such a way that if the given phone is busy, does not answer or is defective, the switching station can reorient the calls, originally addressed to this phone, to the corresponding VPS service, as is the voice messaging system.