FR2838280A1 - Mobile telephone short message rerouting system having messages passed another operator without global address translating with request bridge passed international network/intermediate operator with local register before launching - Google Patents

Abstract

The short message rerouting method has a short message (MO) passed to a destination mobile (MT) of another operator without translating the global address, on an international network (SS7). An intermediate operator has a local register (HLR) to which requests are sent for services by a bridge before launching the short messages.

Description

radio after processing the report messages.

  Field of the Invention The present invention relates to a system for rerouting short messages, from a mobile transmitting an operator to a destination mobile of another operator without translation of global address in the message center, for short messages intended to be transmitted by the international network SS7 to the recipient mobile depending on an operator that does not have a roaming agreement with

  the operator, for short messages.

  State of the art 0 Mobile operators are interested in completing the coverage of their short message services (SMS) by allowing their subscribers (network or operator a) to send SMS short messages

  to the subscribers of another network or operator ().

  There are various reasons why this is not possible or economically unviable: - there is no roaming agreement (roaming) between the networks (a) and (); this would necessitate a special contract for SMS short messages, which is considered to be difficult for the operator to negotiate (a), - the cost of opening all the number segments of the network would be prohibitively high (this is particularly true). in some countries such as Hong Kong) where the international gateway operator charges a monthly cost for each open number slot (the global mobile numbering plan has more than

000 slices of numbers!).

  s The standard method of sending short SMS messages to another network is under the following conditions: For sending short SMS messages from the SMSC (a) center to a network (, B) (provided that there is have a roaming agreement and an SMS short message exchange), all current SMSC centers typically operate as follows: S Step 1: Sending a SRI message (SEND-ROUTING INFO) message from the SMSC center ( a), addressed to the relevant HLR register of the network () As the SMSC (a) center does not know the "Global Name" (unique international address) of the relevant HLR register in the network (), it uses as Appellation Global GT, the number of the subscriber receiving the SMS message dependent for the "international gateway"

  nale of arrival "to translate it into the address of the HLR register.

  Step 2: The HLR register receives this signaling message and returns

  the global name of the MSC center visited by the recipient mobile.

  STAGE 3: The SMSC center (a) sends the SMS short message with text or data and the address of the destination mobile to

  s the address of the visited MSC center, of which it has the Global Name.

  OBJECT AND DISCLOSURE OF THE INVENTION The present invention aims to develop a method for transmitting short messages to any operator, even in the absence of roaming agreement and without the investment of additional software and especially without address translation function

overall in the SMSC (a).

  For this purpose, the invention relates to a rerouting system of the type defined above, characterized by an intermediate operator whose operator of the sending mobile knows the global address, and which comprises is a location register to which he sends the request on duty

before sending the short message.

  According to an advantageous characteristic, routing tables are defined for the GMSC switch of the operator (a), where the switch replaces any recipient number other than those belonging to the narrowest slot corresponding to the global names of the equipment. of the network by the global number of

the intermediate operator.

  This realization of the method makes it possible to calculate the minimum routing table which can not be used for roaming communications.

  rerouting SMS short messages.

  According to another advantageous feature, in the SMSC center of the operator (a) or at the mobile transmitter, - is inserted in front of the global number of the recipient, a pseudo-number, - the number is transmitted as the number of the HLR at the mobile switching center GMSC of the operator, - the center recognizes this pseudo number and replaces it with the global address of the intermediate operator (J to interrogate his localization register, then the short message is transmitted through the network

  3s international SS7 and the intermediate operator.

  Thus, the SMSC center (a) on which the mobile transmitter depends puts the pseudonuméro in any mobile number of recipients of my shortage intended to pass through the international network SS7, that is to say

  say any recipient number preceded by the + symbol.

  According to one variant, the mobile transmitter directly inserts the pseudo number into any mobile number receiving short messages. In a particularly interesting manner, in the case of a global name of equipment authorized at most 16 digits and global addresses of the mobiles formed at more than 13 digits, advantageously, in the rerouting system, where is attributed to a intermediate operator (), a global address formed by its country code (2 digits) and a 1-digit code, - the receipt of a short message from a mobile operator, its message center short notes that this is a message to the international network SS7 and it inserts in the global name of equipment, t5 upstream of the number of the mobile recipient, the global address 3 digits of the operator intermediate, - the protocol message uses this global address to query the location register of the intermediate operator, to obtain the global address of the MSC visited by the recipient,

  o - then he sends the message (SM) through the intermediate operator.

  Drawings The present invention will be described hereinafter in more detail with the aid of exemplary embodiments shown in the accompanying drawings, in which: FIG. 1 shows a first embodiment of a re-routing system according to FIG. which routing tables are defined for the gateway switch GMSC of the operator (a), - Figure 2 shows a second embodiment of a short message re-routing system inserting a pseudo-number for example exem o ple 00 in front of the number of the destination mobile to reach the register HLR of the intermediate operator (); - Figure 3 shows a third embodiment according to which the SMSC center of the operator of the transmitter inserts the beginning of the number of the

  HLR location register of the intermediate operator ().

  According to the invention, the system for rerouting short messages MS from a mobile transmitter MO (a) belonging to an operator a must be sent to a destination mobile MT (, B) of another operator. (). This transmission must be done without translation GT global address by its SMSC message center (because it does not have

necessarily the function).

  For this, the rerouting system comprises an intermediate operator () whose operator (a) of the mobile transmitter MO knows the global address. This intermediate operator (y) includes a location register HLR () to which the operator (a) of the mobile transmitter MO (oc)

  address the SRI-SM service request to retrieve the information con-

  surrounding the recipient before sending the short message ME; (oc).

  According to a first embodiment of this system represented in FIG. 1, the system comprises the SMSC centers (a) of the operator (cc) and a gateway switch GMSC (a) also of the operator (a) Ce switch, common to different SMSC centers (a) of which only one is represented [that addressed to the mobile transmitter MO (a)] is connected to its international gateway IGP (a), itself connected to the international network SS7. The international gateway IGP () of the operator

  intermediary () is also connected to this international SS7 network.

  The intermediate operator () has a location register HRLy.

  The GM SC (a) operator serial switch (a) may translate a global address but the address translation table must be such that: - there is no impact on roaming for the s voice communications s, - s s s s s s SM short that the operator (a) wants to send ve rs

  the intermediary () is routed to it.

  In fact, the routing tables conventionally have the following structure: Country code Number range Translated to

33,660 NO

33,661 NO

33,662 NO

33,670 NO

  In fact for roaming, the HRL, MSC and SMS are in the narrowest range, that of the global addresses principa o the MGT. According to the invention, a new routing table is established in

  retaining the first narrower slice, the one containing the

  global shuffling of the SMSC, HLR, SMSC network equipment to allow roaming operation for all mobile numbers other than the short message numbers which are connected to the global address of the HLR register of the intermediate operator ty). So, according to this system,

  we have a global numbering plan including the form of

  ss of all network equipment (MSC, HLR, SMSC), a program that calculates the minimum routing table

  roaming and rerouting SM short messages.

  For example, the () operator has roaming agreements with BUGS (GT = 336600xxxxx), SUNDAY (GT 852923479xx), SINGTEL (GT 659650000x)

  He wants to reroute the traffic for Bouygues and Sunday and

  directly view SMS short messages for Singtel.

  The program then creates the following table: Code Tranche Traduction

33 6600 NO

Bouygues

33 66 +33899990000

852 923479xx NO

852 9234 +33899990000

  852 612xxxxx +33899990000 SUNDAY 852 618xxxxx +33899990000 852 625xxxxx + 33899990000 852 927xxxxx +33899990000 901 xxxxx NO 901 xxxxx NO I All numbers SINGTEL 65 965xxxxx NOT STELTEL 972xxxxx NO J So, in summary, we create a translation table

  of addresses by a program in the GMSC gateway switch.

  This table includes only one line per operator to let roaming agreements work as well as as many lines as there are number ranges for this operator. The first line only translates the global calls of the equipment of the destination network () to let roaming, the other lines translate systematically

  the address by the address of the network ().

  FIG. 2 shows a second embodiment of a rerouting system according to the invention according to which the mobile transmitter MO (a) belonging to the operator (a) wants to send a short message SM to a mobile station MT ( ) belonging to an operator () not by an intermediate operator () whose global address is known. According to this embodiment, the SMSC center (a) of the operator (a) to which 0 is addressed to the mobile MO (a) receives the international number + MT () of the recipient mobile of the message and transforms this number + MT ( , B) by inserting pseudo-number ff 00 "to send a SRI request (SEND- ROUTING INFO) to the operator's HLR (). The GM gateway switch SC (a) of the operator (a) translates this address + OOMT (, B) by replacing i5 the pseudo-number "OO" by the global address of the location register HLR of the operator () By way of example this number is taken equal to + 338

(9999 00 00).

  This request is sent by the GMSC switch (a) to its international gateway IGP (a) which, recognizing the country code +33 'where the request to the international gateway IGP () on which depends the operator (). The international gateway IGP () on the reception side of the SS7 network analyzes the address and sends the request to the location register HLR () which returns the information concerning the recipient and then the message

short is sent.

  According to a variant of this method, the SMSC (cr) center of the operator (a) does not have the possibility of transforming the number. In this case, the mobile transmitter MO (a) adds the pseudo-number "<OO" in the global number MT () This number crosses the SMSC () center to reach the global switch GMSC (oc) which translates address

so as in the previous case.

  The pseudo-number inserted either by the SMSC center (a) or by the mobile MO (a) is a conventional pseudo-number, chosen so that it can be distinguished by the global operator GM SC (a) and allow the translation, c 'ie the replacement of the pseudo-number by the number

  s5 global of the location register HLR () of the intermediate operator ().

  Figure 3 shows a third embodiment of the rerouting system according to the invention. In this case, the number of the intermediate operator is a 3-digit number consisting of the code

country and a single digit.

  This global address of the HLR () of the operator () is known to the operator (a). When the mobile transmitter MO (a) of the operator (a) wants to send a short message SM to an addressee MT (), it forms the international number + MT (). This number is recognized by the SMSC (a) center of the operator (a) which automatically transforms it by inserting the address

  338 between the + sign of the international number and the number of the

MT receiver (, B).

  o Then the procedure proceeds in the usual way. The SMSC center (a) sends a SRI request (SEND-ROUTING-INFO) to the global communicator GMSC (a) of the operator (a) which transmits the request through its gateway IGT (a), the network SS7, the international gateway of the intermediate operator IGP () and then the location register HLR () of

the operator ().

  Then the short message is routed.

  This third embodiment of the rerouting system according to the invention has the advantage of being a very simple implementation of the only confguration of the switch GM SC (a) of the operator (a) and st de o clarify the new Global Name 338 (outgoing and incoming) which is specific to the intermediate operator () and its SMSC (a) center to insert the

routing number "338".

GLOSSARY

  SMS Short Message (Short Message Service3 s Short Message Service Center (SMSC) HLR Home Location Register) MSC Mobile Switcher Center SEND-ROUTING-INFO Message of the Employee MAP Protocol in GSM to interrogate an HLR and obtain the global name of the MSC visited GMSC Mobile Switching Center serving as a gateway to the international SS7 network (Gatoway MSC) SS7 International network allowing the transmission of signaling messages used in the networks of mobile (Signalling Sys 2s tem 7) Roaming Mobility Possibility for a mobile subscriber to "visit" another IGP network Gateway International (International Gate Way Point) GT Global Title 3s MO Mobile Origin (Mobile Originated) MT Destination Mobile (Mobile Terminatod)

Claims (2)

  1) System for rerouting short messages (MS) from a sending mobile (MO) (a) from an operator (a) to a receiving mobile (MT) (, B) from another operator () without translation of global address (GT) in the SMSC (cc) for s short messages (MS) intended to be transmitted by the international network SS7 to the destination mobile (MT) () dependent on an operator (3) not having for roaming with the operator (a), for short messages, characterized by o - an intermediate operator (^ y) whose operator (a) knows the global address, and which includes a location register (HLR) to which it sends the service request (SRI) before issuing the short message (MS) (a) 2) Re-routing system according to claim 1, characterized in that - routing tables are defined for the switch gateway (GMSC) (a) of the operator (a), - the switch (GMSC) (a) replaces any recipient number other than those belonging to the most narrow number corresponding to the global names of the equipment of the network (MSC HRL, SM8C) by the overall number of the HLR of the intermediate operator (), 3) rerouting system according to claim 1, characterized in that - is inserted in front of the number addressee (MT) (, B), a number pseuJo in the global equipment number, - this equipment global number is transmitted to the operator (o) switch (GMSC), - the switch (GMSC) (oc) recognizes this pseudo number and replaces it with the global address of the intermediate operator () to query the location register (HLR) of this operator (), then transmits the short message (SM ) through the international network SS7 and the operator intermediate (y).   3s 4) rerouting system according to claim 3, characterized in that the center (SMSC) (a) on which the mobile transmitter (MO) (a) inserts the pseudo number in any mobile number messages recipient   short (MT) () scheduled to go through the international SS7 network.   5) rerouting system according to claim 3, characterized in that the mobile transmitter (MO) (a) directly inserts the pseudo number in   any recipient mobile number (MT) () of short messages.   10) A rerouting system according to claim 1, in a mobile system whose overall names of equipment allow a number   at most 16 digits, the global addresses of the mobiles being at most   the 13 digits, characterized in that   s - an intermediate operator () is given a global address   country code (2 digits) and a 1-digit code, - on receipt of a short message (SM) from a mobile (MO) (cc) of the operator (a), his center Short Message Service (SMSC) (a) discovers that this is a message to the SS7 network and it inserts in the global device name o, upstream of the destination mobile number (MT) (), the 3-digit global address of the intermediate operator (), - the protocol message (SRI) uses this global address to query the location register (HLR) of the intermediate operator 1) to obtain the global address from the recipient MSC,   2 s - then he tells it to himself (SM) through the intermediary operator -