The method of receiving data in a standard gsm network, related to additional services in the system of msc and vlr

 

(57) Abstract:

The invention relates to a method of receiving data in the network for additional services in the system of MSC and VLR, signals are transmitted between HRL and system MSC and VLR in the minutes of the MAR. MAR contains a sequence of "containers" for additional services, where "conveyors" always contain a parameter which indicates the service which is associated with the contents of the corresponding container, together with the data, which vary from service to service. This parameter is always in the same place inside the "container". The method contains a function, whose purpose is to parse the data of the subscriber, received in MAR, in the least, in order to identify appropriate additional services. When using code SS data type is identified correctly an additional service, it gains access to the contents of the container. These extra services are syntactically analyze those data types that are contained in the container in accordance with the structure, which is known only to the corresponding optional service. Then there is a local save data for each extra services included in the system MSC and VLR. Technical rez is toadie the invention in General relates to mobile radio systems with a honeycomb structure, based on the so-called GSM (global system for mobile communications), and more specifically to methods for reception in the GSM network data for additional services.

Prior art

GSM network in the General case contains at least one system base station BSS containing the base station controller BSC and the base station transceivers (BTS). The GSM network, in addition, contains switching service center mobile station MSC, the internal register location register HLR and the location of the newly arrived VLR.

Each subscriber mobile station MS belongs to HRL in the internal network, in which data is stored permanent subscriber. During registration of the mobile station in the system of MSC and VLR as newcomers HLR that the mobile station sends a copy of the relevant data of the subscriber system MSC and VLR. Data is sent over the network CCITT number 7 from HRL to the system MSC and VLR. Procedures for the specified operation are described in the Protocol MAP (part of the application for the mobile stations is described in GSM 09.02 recommendations ETSI GSM). The structure of the data in the MAP is described generally in accordance with the ASN. I (abstract syntax notation). ASN. I and his rules are described in CCITT X 208 and X 209.


Forwarding Info On the Passage);

CallBarring Info About the Cancellation of the Call);

information CUG (closed user group);

data SS (supplementary services).

Forwarding Info is the data type, which describes the services to pass data in the usual way. CallBarring Info is the data type that describes services for the cancellation of the call in the normal way. Information CUG describes a more complex data structure of a closed group of users, while data SS describe the structure of data of other additional services that do not fall under any of the categories listed above.

In turn, these data types contain data that is specific to the relevant additional services. For example, in the case of avatele, data call progress are usually described in Forwarding Info. Thus, data on additional services to some extent are General data and to another extent the data that is specific to the respective additional service.

Data types ForwardingInfo and CallBarringInfo and data SS have one thing in common, which is that the data of the first type of internal code is SS (supplementary services).

Code SS is a data type that identifies a specific supplementary service (SS). Thus, all services in GSM are identified by code SS. The exception to this rule is an additional service closed user group (CUG).

The above can be summarized more simply, providing that the MAR contains sequences that are referred to here as "containers" for data on additional services. Appropriate containers always contain a parameter which indicates the service which is associated with the contents of the "container" (this option is "code SS" in the MAP), together with the data, which vary from service to service. The parameter that identifies the intended service, is always in the same way, regardless of the service provided.

In the European patent 454647 describes how to route calls made to the mobile station. Switching station home subscriber mobile station contains information that identifies the location of the subscriber mobile station. When the calling mobile station is received in the questionnaire telephone exchange, telephone exchange requests from the switch falsifying information about where should be forwarded incoming call. However, the switch home first asks the telephone exchange, where the estimated location of the mobile station, to send the mobile station a search signal. The result is communicated to the switch of registration, after which the switch additions informs questionnaire telephone station about the location of the mobile station.

U.S. patent 4644351 associated with the transmission of messages over the radio from one of the many fixed Central systems with different coverage to remote devices. Each remote device is describing his address and it connects with one of the Central systems. When the message for the selected remote strojirny remote device. The location of the selected remote device is determined by searching the file that contains the addresses of the remote devices together with the locations of these remote devices that are not in the area covered by their joint Central systems. If the remote device is not in the zone of the Central cellular system with which it is connected, the message and the address are sent to the Central system, whose location is recorded in the address file.

U.S. patent 4700374 associated with determining the location of the rolling phone. Many switches, mobile phones, monitor and observe the presence of mobile phone devices in their own areas and are joined with the national center. The national center is able to accept requests regarding the location of mobile phone devices from each of the switches of mobile phones and transfer this information to all switches of mobile phones in the system via satellite. The information contained in the data location associated with the identity switch of mobile phones and mobile phone and sent to the national center switch ptx2">

In U.S. patent 4752951 describes a system of personal search "the DEVICE is a PERSONAL SEARCH containing "personal search device and base station. Information associated with the location of the subscriber is sent to the database

U.S. patent 4901340 associated with the technique, which allows traveling subscriber rolling phone to take the call, directed in its area home at the time, as called subscriber is in a foreign area beyond its area of origin. The MTSO (long-distance telephone service) foreign area receives information that a subscriber in a foreign area wants to receive calls directed to its area of origin. The subscriber is allocated a temporary subscriber number (TDN) for use in a foreign area.

In U.S. patent 5090050 describes the relationship with the phones that belong to a radiotelephone system, when these phones work in another geographical area served by another radiotelephone system. The user of the phone sends via phone signal, which actuates the database in the system registry. Signal actuation identifies your phone and other radiotelephone system, discuss the phone, database searches for signal actuation and the call is passed to another system via a land line telephone. Then between another system and the phone is set to radio.

Disclosure of the invention

The present invention is the problem of nding the General solution to the problem of receiving data for additional services in the system of MSC and VLR for transmitting signals between the HLR and the system of MSC and VLR via the MAP. This solution gives the possibility to include in the system the MSC and VLR new additional services, without influencing the function associated with the end of the MAP Protocol in the system MSC and VLR.

The problem is solved in that in the method of receiving data in a standard GSM network, related to additional services in the system of MSC and VLR, signals are transmitted between the HLR and the system of MSC and VLR via the recommended Protocol GSM MAP, where the MAP contains the sequence "container" for data on additional services, and appropriate containers contain parameters that identifies the service to which the contents of the container, together with the data, varying from service to service according to the invention:

a) parse the received data of the subscriber in the MAP for the IDA is Oh services to the contents of the container,

c) perform under the relevant additional service syntactic analysis of the types of the data contained in the container, in accordance with the structure, which is known only within the respective additional service, and

d) perform local data storage for each additional property in the system of MSC and VLR.

It is also advisable to carry out:

A) 1. parse the content information list SS (supplementary services) data type, that is, a list that identifies the data types in the MAP, in order to identify those containers that are contained in the information slip SS,

2. internal identification code SS data type in the appropriate containers,

B) 1. analysis code values SS, while ensuring that the new code values SS can be added without affecting the function that performs the analysis, and each time when performing analysis indicated an additional service,

2. request version service about the contents of the container to use a named additional service and internal analysis within the specified additional service specified content is received for passing the respective receiving additional services while excluding containers, not subject to additional service.

As mentioned above, the structure of the data in the MAP is described in General in accordance with ASN. I (abstract syntax notation). According to the invention the data types described in accordance with the syntax ASN. I may be in the system MSC and VLR so that there was the possibility of adding a system MSC and VLR new additional services that provide their own data types without affecting the functions that deal with the end of the MAP Protocol in the system MSC and VLR.

Brief description of drawings

The invention is further illustrated by examples of its implementation with reference to the accompanying drawings, on which:

Fig. 1 depicts a schematic diagram illustrating the basic structure of the conventional GSM network.

Fig. 2 depicts a scheme of information list of subscriber data related to additional services.

Fig. 3 depicts a block diagram of one embodiment of the method corresponding to the invention.

The best option of carrying out the invention

In Fig. 1 cellular GSM network contains essentially some number systems, base stations, of which two shall howl station BSC1 and BSC2, respectively, associated with the transceivers of the base station BTS via the communication line L, and one of these transceivers of the base station indicated by BTS.n in Fig. 1. Each transceiver BTS is related to the cell of the cellular network, which is shown in Fig. 1 as a cell structure in which each hexagon represents a cell. In Fig. 1, the cell containing the transceiver BTS.n, is denoted by S. p. GSM Network, also contains switching service center mobile station MSC with register location visitors VLR. In addition, there are one or more internal registers the location of the HLR, which communicate with the MSC. MSC is connected for communication with the base station controllers BSC1 and BSC2 through land mobile network public PLMN.

Although not shown, MSC, shown i in Fig. 1, is typically paired with other MSC, each MSC, also has interfaces for communication with the local public switched telephone network public areas.

Each subscriber mobile station MS belongs to HRL in the home network, which stores permanent data subscribers. When the mobile station is registered in the system MSC and VLR as network CCITT number 7 from the HLR system MSC and VLR. Procedures for this are described in the Protocol MAP (part application for mobile stations described in the recommendations GSM ETSI GSM 09.02). The structure of the data in the MAP is described generally in accordance with the ASN.I (abstract syntax notation), ASN. I and its rules are described in the CCITT X. 208 and X. 209.

The subscriber data in the MAP are defined in the General data type called SubscriberData (Data User). This data type is "design" of the type that, according to FSN.I mean he, in turn, contains new data types. The data type of SubscriberData, which refers to the data for additional services, called Provisioned Supplementary Services (Provide Additional Services). Provisioned Supplementary Services, in turn, informational list of supplementary services (SS). According to the data structure in the MAP and with reference to Fig. 2 this implies that in the information list of additional services, designated 2, includes four different data types 4, 6, 8 and 10, namely, CallBarringInfo (information About the Cancellation of the Call), ForwardingInfo (Information About Passing data, SS (supplementary services) and information CUG (closed user group), respectively.

CallBarringInfo is the data type, which describes the services to cancel call normal obras describes a more complex data structure of a closed user group, while data SS 8 describe the structure of data of other additional services that do not fall under any of the categories listed above.

Data types 4-10 contain specific data for the respective additional services. For example, in the case of services for the passage of a call there is a significant portion of the data, which is common for these services, and therefore these call progress are usually described in ForwardingInfo. Thus, these additional services are to some extent shared data and to another extent the data that is specific to the corresponding additional services.

Data types ForwardingInfo, CallBarringInfo and data SS have one thing in common, which is that the first type of data internally is the so-called code SS specified in 12', 12" and 12' in Fig. 2.

Code SS is a data type that identifies a specific supplementary service (SS). Thus, all services in GSM are identified by code SS. The exception to this rule is an additional service closed user group (CUG).

The above can be summed up simply saying that the MAP contains posledovatel the Nera always contain a parameter, which indicates the service which is associated with the contents of the container, and this parameter is "code SS" in the MAP, along with the data, which vary from service to service. The parameter that identifies the intended service, is always in the same place inside the "container", resulting in the possibility of a uniform identification of the receiver of the data regardless of the service provided.

In Fig. 2 illustrates the principle of using sequences "containers", which is an important feature of the process according to the invention.

The invention performs the General function, whose purpose is to parse the data of the subscriber, which are accepted in the MAP, to the extent that could be identified these extra services. When using data type code SS was identified correctly an additional service, it is able to access the contents of a "container". Next, the relevant additional services syntactically analyze those data types that are contained in the container, in accordance with the structure, which is known only in the relevant additional services. Data is stored on the em these tasks in the system MSC and VLR, is divided into two functions, called here the feature a and feature B, the procedural steps are shown in Fig. 3 and below:

Subfunction A

Step 14 - Analysis information list SS.

Step 15 - the Identity of the first "container".

Step 18 - Identification "code SS".

Step 20 - Performing subfunctions B.

Step 22 - the Decision whether all containers were reviewed.

Step 24 - If not, identify the next container, and skip to step 18 according to the arrow 26. Repeat until until you have completed all of the containers that dares to step 22.

Step 28 to Release the contents of the containers when calling from "service".

Subfunction B

Step 20.1 - Analysis "code SS".

Step 20.2 - Call service, which belongs to the code "SS".

Step 20.3 - Establishing whether the owner.

Step 20.4 - If not, the rejection of "container".

Step 20.5 - calling from the "service" preservation of information relating to the service that owns the corresponding code SS".

In subfunctions A content information list SS-data types syntactically parsed at step 14 in order to be able to ID manually is testwuide "containers" in step 18. The second subfunction, here called the subfunction B, is called for each "container" and executes at step 20 the identification of proper maintenance.

Subfunction B will parse the code value of the SS in step 20.1. This analysis is introduced in order to make it possible to add new values to the code SS without affecting the function that performs the analysis.

Additional service specified each time the code analysis SS in step 20.1. This additional service is not able to call the subfunction and thus gain access to the contents, that is, to data in its container in step 28. The contents of the "container" (the data types specific to that service) further analyzed within the function for additional service.

This procedure is then repeated according to the steps 22, 24 and 26 until then, until you have passed all containers and all containers will not be delivered to the appropriate receiving additional services. Those containers that do not meet the additional service may be discarded in step 20.4, because these containers contain data for maintenance, which in the system of the MSC and VLR are not accessed. the howl functions which receives the data of the subscribers, the ability to be formed with the possibility of increasing adding to the system the MSC and VLR additional services without having to modify the underlying function.

It provides good properties when designing additional services, which are often optional for the system operator MSC and the VLR and each of which can then be added without affecting the basic function in the MSC and VLR , in this case in relation to the receiving subscriber data from the HLR.

Finally, when working with the service to which the code belongs to SS, and its use shall comply with the following procedural steps:

When adding a new service in the system of MSC and VLR message "code SS subfunctions B by calling the subfunction B 20.5.

When you receive a call from function B call A subfunction in step 28 to request access to content "container".

The software and hardware required to realize the above described functions, obvious to the person skilled in the art and therefore does not require more detailed description.

1. The method in the standard network global system for mobile communication data relating to Glozhene newcomers, signals are sent between internal register location and these two systems are recommended for global system for mobile communications Protocol "part of the application for mobile stations containing the sequence "container" for data maintenance, and appropriate containers contain a parameter that identifies the service to which contents of the container, together with the data, varying from service to service, characterized in that a parse subscriber data taken in the Protocol part of the application for the mobile stations to identify relevant additional services b will receive access to identified additional service to the contents of the container, c) parse the relevant additional service data types contained in the container, in accordance with the structure, known only within the respective additional service, and d) perform local data storage for each additional property in systems with switching service center of the mobile stations and register location NR the th parameter code "Additional services", which always appears in the same place inside named "container".

3. The method according to p. 1, characterized in that A) 1. parse the content information list of "Additional services" data types, i.e., a list that identifies the data types in the Protocol part of the application for mobile stations", to identify the containers contained in the information list of "Additional services", 2. conduct internal identification code data type "Additional services" in the appropriate containers, (B) 1. analyze the code value of "Additional services" to allow new code values "Additional services" to be added without affecting the function that performs the analysis, and the additional service point every time in the analysis, 2. request the version of the additional care about the contents of the container to use within the specified additional services and internal analysis within the specified additional service specified content, and repeat the operation B1-2 up until all the containers will not be passed and all containers will not be selected for passing appropriate the additional service.

 

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FIELD: radio communications.

SUBSTANCE: proposed method intended for single-ended radio communications between mobile objects whose routes have common initial center involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mentioned mobile objects and destroyed upon completion of radio communications. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning of several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

1 cl, 7 dwg, 1 tbl

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