CN101180897A - Method, system and computer program product for countering anti-traffic redirection - Google Patents

Abstract

A method and system for countering anti-traffic redirection of a roaming mobile station is provided. Observing registration messages exchanged between the visiting network and the home network, the disclosed invention detects if the visiting network has deployed an anti-traffic-redirection mechanism as aimed at fooling the home network into permitting connection with a non-preferred network. The invention also provides for a way to steer the roamer to reattempt connection with a preferred network.

Description

To method, system and the computer program that stops communication redirection to check

Related application

The application advocates the priority of U.S. Provisional Patent Application, and the application number of this temporary patent application is 60/662,031, and name is called " being redirected the method and apparatus of resisting to resisting network service ", and the applying date is on March 14th, 2005.The application is relevant with the U.S. Patent application of " method and system that cellular network communication is redirected " by name, the application number of this application is 10/635,804, the applying date is on August 5th, 2003, and require the priority on August 5th, 2002, these two relevant applications this by reference integral body be incorporated herein.

Technical field

The present invention relates to the communication redirection in the wireless network, more specifically, the invention discloses a kind of method, system and program product stoping communication redirection mechanism to check.

Background technology

Cordless communication network has become the major part in the current digital living pattern.All keep the needs of connected state and serious hope to make cellular carrier expand their network to almost all possible corner, the whole world at all time points.

In the sector, rely on user's requirement and under certain specific geographical position the preference of operator, and adopted various standard and agreement.Existing some popular technology comprises GSM, GPRS, 3G, CDMA, WCDMA, TDMA (time division multiple access), WLL (wireless local loop), WiFi (wireless compatibility authentication), WiMax (micro-wave access global inter communication) and VoIP (internet protocol voice technology) in this field.All these technology all have advantage and shortcoming separately, and FR service based on voice-and-data is provided.Virtual network operator can use the one or more combination in the above-mentioned technology and one or more voice/data services are provided.

In order to prevent service supplier's monopolization, different geographic areas is assigned with one or more Virtual network operators.These operators provide competitive service usually in their zone.Particular network operator also may exist in more than one geographic area.In order to provide totally continuous service, Virtual network operator not only to cater to those to the user directly to the user of their registration, and cater to from other areas they the user with and/or the user of other Virtual network operators of " roaming " agreement arranged with them.Roaming agreement all is bilateral usually, and roaming service just can be received by the operator of each diverse geographic location in the zone of other Virtual network operators like this.The network directly relevant with the user is known as user's local network.The network that other Any user can be roamed is called as accesses network.From the angle of local network, the user is known as the departure roamer, if from interviewed network perspective, the user is known as inbound roamer.

As mentioned above such, in any given geographical position, may have a plurality of Virtual network operators one or more services are provided.Ramber's local network can be with respect to an interviewed network and another interviewed network of preference, perhaps can want their departure roamer's communication is dispensed to different operators according to different proportion.Various factors, for example commercial terms, service quality, service range or the like all can influence preference or roaming distributes.In the ideal case, can the do one's best departure roamer that guarantees it of local network is registered in the interviewed Virtual network operator of this local network preference under situation at that time.

Communication redirection (TR) or roaming steering (SoR) are a kind of methods, by this method, home network carrier is used the message based on exchange in the signaling mechanism of MAP (MAP), comes according to some logic or distribute to be connected with the interviewed Virtual network operator of recommending with user's attempt of controlling them.Herein, " network of recommendation " this term is to be based upon (for example files on each of customers (profile) information, visit country, the departure roamer's in this country present distribution) on the basis of some logic or distribution, refer to certain network static preferential other networks, perhaps other network of dynamic priority.

Owing to produced huge benefits by the immigration roaming, therefore ordered about operator and always obtain maximum as much as possible immigration roaming communication.Propaganda or advertising at airport and harbour, and the competition of setting up the most powerful reflector in these areas between the operator all can be testified for this reason.Along with the arrival of roaming steering, attempt destroys to communication redirection to impel operator of today, and attempts to make inbound roamer to register under their network automatically.This not only causes local roamer's income to reduce, but also may provide the local roamer of picture desired the sort of best service quality and service range for the user

Need a kind of method and system in the art, come stoping communication redirection to open that figure checks and the roamer being controlled the network that is back to recommendation.

Description of drawings

Among the figure, same or analogous label is represented similar elements or operation.

Fig. 1 ends the block diagram of the instantiation of communication redirection system for anti-drag;

Fig. 2 is according to some embodiment of the present invention, to stoping the flow chart of the method that the TR method checks;

Fig. 3 shows the signaling process of the method that prevention TR method is checked, and this method is copied the manual mode of mobile phone, perhaps copys the situation that only network can be used;

Fig. 4 shows the signaling process of the method that prevention TR method is checked, and this method is copied the mobile phone dedicated situation that exists;

Fig. 5 shows the signaling process that the prevention TR based on GLR (Gateway Location Register) is checked.

Embodiment

The invention discloses a kind of to stoping TR mechanism to detect and the roamer is redirected to the method for the network of recommendation.This method detects the existence that stops the TR scheme by the registration message of observing the exchange of one or more visited networks and local network.This method comprises the following steps: by sending suitable enrollment response message, so that the registration message that is observed is made response, attempts again and being connected of recommendation network and control the roamer.

The invention also discloses a kind of to stoping TR mechanism to detect and the roamer is redirected to the system of the network of recommendation.This system comprises detecting module, the registration message that described detecting module observation exchanges between local network and accesses network.This system further comprises detection module, on the basis of described detection module based on the registration message that is detected module observation, detects the prevention TR mechanism that is configured in accesses network.This invention also provides redirection module, and described redirection module is redirected the roamer, and it is attempted and the reconnecting of the accesses network of recommending.

Disclose various instantiation herein and come the diverse ways that stops TR mechanism to adopt is checked, so that the TR mechanism failure of local network.

The application also advocates the computer program of realizing said method has been carried out claims.

Following description provides concrete details, so that the various different embodiment that stop communication redirection repressible system (ATRCS) are carried out comprehensively can understanding and enforceable description.Yet, it will be apparent to one skilled in the art that the ATRCS system can not implemented in having the situation of these details.In other cases, the 26S Proteasome Structure and Function of knowing at length do not show or describes, to avoid that unnecessary desalination is carried out in the description of the embodiment of ATRCS system.Here the title that provides is as just facility, and do not influence the scope or the implication of claims of the present invention.Appendix has comprised the explanation of a large amount of initials used herein, and is comprised in for reference herein.Therefore, those abbreviations may not spell out in document text fully.

Below, the present invention will be described with reference to the accompanying drawings.Although the present invention utilizes GSM as basic technology and focus and be described, yet creative notion can similarly be applied in other radio network techniques among the present invention, for example CDMA, WCDMA, WiFi, WiMax, VoIP or the like.Under the situation based on the GSM network, local network is taken as local public mobile network (HPMN), and accesses network is taken as visit public mobile network (VPMN).And HPMN and VPMN can have more than one Virtual network operator, and wherein HPMN can have a preference for some VPMN Virtual network operator in numerous Virtual network operators to some extent.Term HPMN/HPMN network/HPMN Virtual network operator, and term VPMN/VPMN network/VPMN Virtual network operator used in whole specification alternately, and these terms implication of wanting to express is subjected to the contextual implication that their occur and controls.Term " user " is used for showing the user who registers here under network.The user who registers under network can be the combination of any hardware and software that can register on wireless network, for example, and personal digital assistant (PDA) or PC (PC).

Disclosed method and system use the signaling message of the MAP (MAP) that exchanges in this literary composition between VPMN and HPMN, detect the prevention TR scheme of any visited network configuration, and control the roamer afterwards and attempt and the reconnecting of recommendation network.

Fig. 1 has shown the block diagram according to the system of instantiation of the present invention.This system comprises HPMN102, and HPMN102 communicates by letter with a plurality of VPMN by SS7 (Signaling System 7(SS-7)) interface 108.Although this embodiment is described by showing the communication between a HPMN and two VPMN, should be understood that a plurality of VPMN can communicate with HPMN102.In the middle of these VPMN, some can be the VPMN that HPMN recommends.In the embodiment of this example, the VPMN of VPMN106 for recommending, VPMN104 have disposed the VPMN that does not recommend that stops in the TR scheme.HPMN102 comprises that anti-drag ends TR module 110, HPMN roaming signalling transfer point (STP) 112 and HPMN HLR114 (attaching position register 114 of local common moving network).Anti-drag ends TR module 110 and HPMN HLR114 is coupled to HPMN roaming STP 112.Anti-drag ends TR module 110 and comprises three modules: detecting module 110a, detection module 110b and redirection module 110c.The function of these modules can be described in detail below.These modules are logic module, can form by single entities or by one or more logical entities.This system further comprises international STP116, and this world STP116 is corresponding with HPMN102, and signaling is sent to and VPMN104 and corresponding another the international STP118 of VPMN106.VPMN104 comprises VPMN STP120, and this VPMN STP120 is connected to VPMN VLR/VMSC 122 (Visited Location Registor of VPMN/mobile switching centre 122 is interviewed).VPMN106 and other VPMN also can have similar structure (this figure does not show).HPMN roaming STP 112 communicates with VPMN STP120 and VPMNSTP124 by international STP116, SS7 interface 106 and international STP118.Above-mentioned instantiation has used module related to the present invention to be described, yet various other module may reside in HPMN and the VPMN.

According to a specific embodiment of the present invention, HPMN102 can dispose the TR scheme and its roamer be controlled the VPMN106 that recommends to it.In order to check this TR, the VPMN104 that does not recommend can dispose and stop TR scheme, this scheme will attempt inbound roamer drawn in their network.This stops the TR scheme by monitoring roaming MAP transaction and inject and forge message, perhaps by interception roaming MAP transaction and forge reciprocation and make as from roaming mobile phone or real VPMN VLR, and is configured in the VPMN104.

The invention discloses the feasible operator scheme that two kinds of anti-drags end the TR scheme, i.e. method for supervising and interior signaling (in-signaling) method.

Method for supervising

In specific embodiments of the invention, anti-drag ends the exchange of TR module 110 by at least one registration message of passive monitoring between HPMN102 and VPMN104, and to stoping the TR attempt to detect.In the middle of example of the present invention, the registration message that detecting module 110a observation exchanges between HPMN102 and VPMN104.Detection module 110b is by the type and the frequency (following will the explanation in detail) of the registration message that exchanges between HPMN102 and VPMN104 of observation, and to stoping the TR attempt to detect.In the middle of example of the present invention, at least one registration message is that (LUP) message is upgraded in the position.

Interior signaling (in-signaling) method

In the middle of an alternative embodiment of the invention, anti-drag ends TR module 110 by initiatively monitoring the signaling between HPMN102 and VPMN104, stops the TR attempt and detect.This anti-drag ends the exchange that the TR module is monitored at least one registration message between HPMN102 and VPMN104 on one's own initiative.Below, initiatively monitoring and interior signaling mode are mentioned interchangeably.Under interior signaling mode, by the roaming STP112 that HPMN102 is set roaming SCCP (SCCP) communication is passed through to stop TR module 110, and being ended TR module 110, anti-drag is configured on the roaming SS7 path.

To those skilled in the art, very apparently, different method for routing can be used, and does not influence the working method of method disclosed herein or system.

Fig. 1 has described based on monitoring with based on the anti-drag of interior signaling paths and has ended the TR architecture.End in the TR scheme at anti-drag, between HPMN and international signaling carrier, will have the extra tap of international roaming link based on monitoring.End under the TR scheme at anti-drag based on interior signaling paths, redirected from the roaming SS7 message of any VPMN by HPMN roaming STP112, to end TR module 110 by anti-drag.No matter select which kind of allocation plan, anti-drag ends the TR testing mechanism will receive VPMN104,106 and HPMN102 between departure roamer's position upgrade transaction.Yet in two kinds of situations, anti-drag ends TR module 110 all can insert or revise the MAP transaction on the departure roamer.

After the anti-drag of HPMN ended the TR scheme, if the roamer still successfully registers on the VPMN network of not recommending, then HPMN102 can infer that HPMN TR/ anti-drag ends the failure of TR scheme, and the success of the prevention TR scheme of VPMN.If after the anti-drag of HPMN ends the TR scheme, the roamer fails to register on the VPMN network of not recommending, and then HPMN102 can infer that HPMN TR/ anti-drag ends the success of TR scheme, and the failure of the prevention TR scheme of VPMN.

Infer and subsequently HPMN TR/ anti-drag ends success or the failure of TR that based on these HPMN102 can produce various report, for example signaling load expense expense, TR/ anti-drag end departure roaming communication ratio of TR success/fail, be redirected or the like.

The prevention TR scheme of being disposed by VPMN104 can adopt one or more methods.We explain these methods now one by one, and anti-drag of the present invention ends the TR scheme and how every kind of method checked.

Forge manual mode or do not have the detection of covering defence

Implementing to stop the basic thought of TR scheme at VPMN is deception HPMN TR, thinks that mobile phone just moves under manual mode, and perhaps this VPMN is the only network in the coverage.This is achieved by repeatedly send the position renewal on consolidated network, upgrades refusal although had from the position above 4 of HPMN TR.

Because TR should not attempt the registration of the equipment of refusing in the mode of manual selection, if perhaps this VPMN only has a network in the coverage, this pattern recognition of departure roaming equipment is just very important.For fear of the Customer Experience of bad luck, although continuous four times are rejected, to return if upgrade the 5th time from the departure roamer's of the identical VMSC/VLR of VPMN position, then existing TR scheme derives manual mode or unique VPMN covers.This make the prevention TR scheme representative immigration roaming equipment of VPMN operator forge manual mode or only VPMN cover to become and be more prone to.

Yet, stop the TR scheme can not make response to immigration roaming equipment for a long time usually.This is because if overtime termination is attempted in its registration, in any case mobile phone may move to another network or attempt another registration.The time interval that stops the TR scheme to select some random time maybe can set easily forges new position and upgrades, because interaction locations (inter-location) is difficult to expect update time at interval.These time intervals are not only for inequality between the different type of cell phone, even all have little excursion for same type of cell phone.Mutual network site update time at interval also may be different between different operator/networks.Further, mutual network site update time at interval also can be inequality between different type of cell phone, and even have a little excursion for same type of cell phone.After suspecting that response that first time from equipment, the position was upgraded is the TR attempt, the most possible anticipation of the prevention TR module scheme of carrying out for VPMN is exactly the immigration roaming device of representative at VPMN, comes to launch one or more positions faster continuously to same VMSC/VLR and upgrades.

For example, upgrade if stop the TR scheme to launch 3 positions in the first time again after the TR refusal, then the TR refusal adds up to 4 times.Then, mobile phone will be attempted another time position at same position and upgraded; HPMN TR scheme will allow the position to upgrade.For another example, after refusing for the first time, upgrade if stop the TR scheme to launch one or more positions, the TR refusal adds up to 2 at this moment.Then, mobile phone will be attempted 3 positions again and upgraded under same position.Usually HPMN TR scheme will allow last position to upgrade.

In order to check this strategy, anti-drag ends the TR scheme and keeps this deduction manual mode or the initial TR mechanism that covers of VPMN scope only, but previous position upgrade be rejected after, but the position of preset threshold in the time interval (for example 15 seconds in) not being sent is upgraded and is counted.

Fig. 2 has shown the several method that the prevention TR scheme of the VPMN104 deployment of not recommended checks.Fig. 2 has shown interosculating of these methods.Yet, these independent methods also can independently implement or be used for other method that anti-drag ends TR and join together to implement.

As mentioned above anti-drag ends TR module 110 and passes through the SS7 link of monitoring between roaming STP112 and international STP116 like that, perhaps by the message that is redirected from roaming STP112, and receives LUP message.In 201, be received from the LUP message of specific IMSI.In 202, but check for LUP message whether be received in the time interval in preset threshold from the same IMSI of same VMSC/VLR122.If find "Yes" in 203, HPMN102 does not increase progressively the counter of LUP refusal in 204 so, but sends the LUP refusal in 205.If LUP is received after at interval at threshold time, HPMN102 can or select other prevention TR method of inspection to this affirmation in 206.

But the TR module 110 of ending anti-drag can detect the time interval of the position of same departure IMSI between upgrading and whether be shorter than the preset threshold time interval.But when occurring new position in preset threshold in the time interval and upgrade, the TR that the position is upgraded refuses to be rejected counter and counts.Like this, even anti-drag ends the HPMN TR of TR enhancement mode and may receive continuously on same VMSC/VLR122 from 5 positions of same IMSI and upgrade attempt, it will not handle roaming equipment under manual mode, and when some mutual LUP attempt when but preset threshold occurred in the time interval, will continue to refuse LUP.

In exemplary specific embodiment of the present invention, but should can regularly change in the preset threshold time interval.

In the middle of the further specific embodiment of the present invention,, anti-drag can after after a while, add up the ground change preset threshold time interval but ending TR module 110.The calculating of this statistics can basis based on the frequency of the LUP that is received from different VMSC/VLR on.But this scheme provides strong to the detection preset threshold time interval in the prevention TR scheme and has checked.

Fig. 3 has shown for the signaling in the said circumstances and has exchanged.In 301, travelling carriage/handset starting in the registration at the VPMN104 place of not recommending.Afterwards, VPMN104 is sent to HPMN102 with LUP in 302.Because HPMN has disposed the TR scheme, it refuses to upgrade and send the LUP refuse information in 303.The prevention TR scheme of VPMN104 detects TR in 304, and sends 3 LUP message from same IMSI/VLR in 305 again, perhaps calling party address (CgPA) is set at VLR.The LUP message number that sends depends on number of thresholds, and after this number of thresholds, HPMN102 then can accept LUP.Yet because the roamer is the new position LUP of start-up by hand and cause VPMN104 can not travelling carriage be kept for a long time simultaneously, so VPMN104 in extremely rapid succession sends further LUP message.When the continuous LUP message of receiving from same VMSC/VLR, just check that this is received and whether arrive in the time interval in preset threshold but anti-drag ends TR module 110.If, stop the TR will be detected in 306, and in 307 the LUP refusal make mistakes (message) can be sent out, and do not increase the counting of LUP refusal.Travelling carriage then restarts enrollment process in normal way effectively in 308 like this, and no matter stop the TR scheme between it, to be tackled.

Like this, anti-drag ends the TR scheme and works under the monitoring mode of the interior signaling paths pattern of TR and TR.

Mobile phone dedicated detection and resisting

The method that the TR scheme that is prevented from another kind adopts is by prolonging the time interval between the position on the VLR/VMSC 122 of the same VPMN104 under the consolidated network is upgraded, perhaps by prolonging the time interval between the position renewal between the network, and deception HPMN102 makes HPMN102 think that mobile phone/travelling carriage is special-purpose.Usually for fear of the Customer Experience of bad luck, HPMN102 will allow to continue ensuing position and upgrade successfully.

In order to resist this prevention TR strategy, the anti-drag of HPMN102 ends TR module 110 when the LUP that receives from IMSI/VLR 201, can check whether this receive that in the end the threshold time after the LUP207 receives after at interval.This threshold time cycle is cycle time expand that can set, and HPMN102 can wait in cycle time expand that this can be set always, and does not suppose that travelling carriage is mobile phone dedicated and therefore sends the LUP affirmation.For example, this cycle time expand that can set can be about 2 times (or more times) at interval normal time (for example being ended 30 seconds that the TR scheme can be set by anti-drag) between the renewal of position.If LUP was received in the time interval that can set, anti-drag ends TR110 and then still refuses LUP.Yet for fear of the Customer Experience of bad luck, HPMN102 will wait for the time interval of this prolongation only under the number of times that can set (for example 1 time) (being less than usually 2 times).Therefore, in case in 208, be determined, but LUP be received in the time interval in preset threshold, will check in 209 that number of times that whether time interval of prolonging be used is more than pre-determined number.If "Yes" in 211, LUP confirms that (ack) is sent to VPMN104 in 212 so.In 210, if "No", the LUP refusal is sent out in 205 so, and the time-interval counter that prolongs has increased and once counts (not shown).

Fig. 4 shows the exchange for the signaling of said circumstances.In 401, the mobile roaming platform has started the registration at the VPMN104 place, and VPMN104 is sent to HPMN102 with LUP (having IMSI and VLR information) message in 402.Because HPMN102 has disposed TR, therefore it is refused the LUP that is received from the VPMN104 that does not recommend in 403.VPMN104 detects the existence of TR scheme in 404 like this.Afterwards, the inferior LUP message that abandons from same IMSI of prevention TR module " n " in 405 of VPMN1 04, and in 406, continue its follow-up by sending LUP message, thereby prolong two time intervals between the continuous LUP message, with deception HPMN102 with travelling carriage as mobile phone dedicated and treat.Yet because the above-mentioned algorithm of mentioning, HPMN102 still is sent to VPMN104 with refuse information in 408.In 409, travelling carriage will restart enrollment process with normal mode effectively like this, and no matter stop the TR module to be tackled in the centre.

This anti-drag ends the TR scheme and works under the monitoring mode of the interior signaling paths pattern of TR and TR.Detect and resist prevention TR scheme based on GLR

The basic thought of another kind of prevention TR scheme is by use Gateway Location Register (GLR) first position updating files (profile) to be stored in the VPMN network, and avoids the ensuing position between VPMN104 and the HPMN102 to upgrade.Like this, if although the TR attempt of HPMN is arranged, the roamer is just in case successfully in the registration of VPMN104 place, and GLR can avoid being impacted by the TR of the HPMN102 in the performed ensuing position of the roamer of same VPMN104 is upgraded so.

In order to detect GLR as the application that stops the TR scheme, the anti-drag of HPMN102 end TR scheme 110 can check the first time of the departure roamer on the VPMN104 successful positions upgrade whether in the time interval that can set, follow on same IMSI or the same VPMN104 or other any VPMN on position subsequently upgrade after, wherein this time interval that can set for example is 10 minutes.Whether similarly HPMN102 also checks not receiving on a lot of users that also occurred on the specific VPMN104 of LUP in 216.It can be a fixed numbers that inspection has the number of users of this situation, and under the pattern of warning, this fixed numbers can be 1, even meaning promptly has a user not carry out the position renewal in the interval at a fixed time, then can take the correction behavior.Yet perhaps reasonable method can need to calculate more more, and in this calculated, the number of users that need check can be the certain proportion of whole number of users to specific VPMN104 registration.If above-mentioned two kinds of conditions do not satisfy, that is to say that in 214, LUP subsequently is received, even and they are not received from the IMSI of minority in 217, and HPMN102 then supposes to be configured without any the prevention TR scheme based on GLR so.Yet, if realizing LUP subsequently in 215 is not received in the time that can set, for a plurality of users this type of situation takes place similarly so in 219, and then in 219 HPMN102 Cancel Location (canceling position) message is sent to IMSI.

After the prevention TR scheme that detects based on GLR, upgrade successfully from the position at VPMN of departure roaming equipment at every turn, anti-drag ends the TR scheme will wait for that the time interval (for example 10 minutes) that can set issues MAP Cancel-Location.Attention: the attaching position register (HLR) of roaming equipment still has real VPMN VLR/VMSC login (entry).Like this, for any and mobile initiation (MO) activity VPMN, mobile phone will be forced in VPMN and go up the new position renewal of generation.Call out to the roamer's that leaves the country portable terminal (MT) for any calling, HPMN HLR can be distributed to MAP PRN (MAP Provides Roaming Number) the real VLR of departure roamer, and this VLR returns MSRN (Mobile Station Roaming Number).If roamer's VPMN VLR logs on as sky, VPMN VLR just is distributed to HPMN HLR with MAPRestoreData (in the MAP, restore data).After RestoreData, anti-drag ends the TR scheme will wait for that the time interval that can set is distributed to VPMN VLR with another MAP Cancel-Location on the departure roamer.For any MT note of going to the departure roamer, HPMN HLR will be back to initial SMSC (SMS service center) to departure roamer's true VPMN VLR.Initial SMSC then is sent to real VPMN VMSC with message.If VPMN VLR logs on as sky, SMSC will receive the affirmation that makes mistakes, and then the HPMN HLR of status report to the roamer can be convenient to transmission in the future.

Fig. 5 has shown the signaling exchange for said circumstances.In 501, roaming mobile stations is registered to VPMN104.In 502, VPMN104 has sent LUP message to HPMN102.In 503, the roamer's who is sent by HPMN102 position updating files is stored in GLR by VPMN.Afterwards, for each LUP subsequently from IMSI, VPMN104 uses stored archives to confirm.In 504, after the LUP of success, and take place after the similar situation for a plurality of IMSI on same VPMN104, in case find not to be received from the LUP subsequently of IMSI, HPMN 102 infers that the prevention TR scheme based on GLR is configured.Then in 505,506, HPMN102 is sent to IMSI with Cancel Location message, and wherein this IMSI does not upgrade on the VPMN104 that has based on the prevention TR scheme of GLR for a long time.

This anti-drag ends the TR scheme and works under the monitoring mode of the interior signaling paths pattern of TR and TR.

We come the ad hoc approach of the prevention TR that can only work under interior signaling mode is made an explanation.Roaming restriction (RR)

In having disposed the TR mechanism of interior Signalling method, the code of makeing mistakes of roaming restriction also can be used in response to LUP message.Forbid although this temporarily is in the zone, network site in the mobile phone, caused network reselection more fast.In order to resist this TR, the TCAP that stops the TR scheme can only carry out the roaming restriction in MAP ISD message ends or the TCAP refusal, and this MAPISD message has unexpected data value in ISD ACK or unsupported service or the like.

In order to check this prevention TR strategy, no matter when because suspicious prevention TR attempt and ISDRR when not cashed, anti-drag ends the TR scheme will continue to attempt ISD (RR), unless VPMN is regarded as not network enabled of RR truly in the number of times that can set before other TR strategy of attempt.Comprise RR if detect some ISD acknowledge message, and not comprising of other can infer so to stop the TR scheme to be disposed by VPMN from same VPMN.Roaming does not allow (RNA)

In having disposed the TR mechanism of interior Signalling method, roam the unallowed code of makeing mistakes and also can be used to respond LUP message.Although this is in network forbidding in the SIM of mobile phone, cause network reselection faster.In order to resist this TR, stop the TR scheme can only abandon LUP affirmations/error messages, and issue another LUP message immediately, this another LUP message is for about obtaining the same transaction processing of first LUP message that the unallowed LUP of roaming makes mistakes.Like this, HPMN TR can infer that mobile phone manually selected the identical network that is not allowed to once more, and may allow to register successfully.

In order to check this prevention TR strategy, if the time interval of setting that unaccepted position is upgraded because RNA makes mistakes interior (for example 20 seconds) that the position is updated in is before returned, the anti-drag of interior signaling paths ends the TR scheme and will continue RNA is distributed to the position renewal.

Resist the prevention TR scheme of OTA/SIM method

For the HPMN1 02 that has disposed based on the TR mechanism of OTA (aerial download) is resisted, VPMN104 stops all to arrive its departure roamers from the OTA message of HPMN102 simply.

For said method is checked, in a specific embodiment of the present invention, HPMN102 is by sending RNA in this LUP response code of makeing mistakes, come the LUP request from the departure roamer is responded, wherein this departure roamer or attempt to register to the VPMN104 that disposes the prevention TR scheme of OTA/SIM method.In case the roamer is to other network registration, HPMN102 just can then send OTA message, and the roamer is controlled to the VPMN106 that recommends.

The advantage of method discussed above is: they can check the prevention TR scheme of being disposed by VPMN forcefully.Because the anti-drag of explaining herein ends the TR scheme and carries out work by type and the frequency of observing the registration message that exchanges between HPMN and VPMN, and center of gravity is not focused on any specific method/logic that may be prevented from the TR scheme implementation is checked, therefore, adopting logic to come that the disclosed anti-drag of this paper is ended TR mechanism checks very difficult.

The computer usable medium that carries out claims herein comprises computer usable program code, when these code operations, the prevention TR scheme of being disposed by VPMN is checked.Stop the TR attempt detected by the exchange of at least one registration message between observation VPMN and the HPMN.This computer usable medium further comprises the computer usable program code that is used for being redirected, and this computer usable program code that is used for being redirected is redirected the roamer, and the reconnecting of attempt and recommendation network.

The element of prevention communication redirection repressible system (ATRCS) described above comprises any combination of the device that calculates element and operate together.The element of ATRCS also can be at bigger computer system or element under the network or subsystem.The element of ATRCS can also with other element (not shown) coupling of any amount, for example other bus, controller, memory device and data input-output apparatus, and in the mode of any amount combination.In addition, the function that can carry out this ATRCS based on any amount or the combination of the element of other processing.

It should be noted that, various element in this exposure, according to the behavior of these elements, registration transfer, logical block, transistor, geometric layout and/or other characteristics, can utilize such as the cad tools that is included in data in the different computer-readable mediums and/or instruction and describe and/or express (or presenting).The computer-readable medium that has comprised this formative data and/or instruction comprises, but be not limited only to: multi-form permanent storage media (for example, light, magnetic or semiconductor storage medium) and carrier wave, described carrier wave can be used for transmitting this formatted data and/or instruction by wireless, light or wired signaling medium or above combination.

Unless this paper explicitly calls for, otherwise, similar word such as " include " in the whole text " the comprising " in specification and the claim and will be interpreted into the implication that comprises formula, do not have only or the implication of limit and should not be interpreted into; That is to say that these speech implications are " comprise, but be not limited only to ".Use the word of odd number or plural quantity also can comprise plural quantity and odd number quantity respectively.In addition, word " herein ", " more than ", " above-mentioned ", " following " and similarly word represent as a whole this application, do not refer in particular to a certain specific part of this application.When " or (person) " speech was used to reference to the one or more project in enumerating, this word had covered following explanation all about this speech: any one project in enumerating, all items in enumerating and above combination in any.

More than be not to be used for exhaustive or ATRCS is limited in the disclosed accurate form to the description of the ATRCS embodiment of institute's example.Here the certain embodiments of described ATRCS and example are exemplary purpose, it will be apparent to one skilled in the art that various equivalents also is feasible in the ATRCS scope.The religious doctrine of ATRCS provided herein can be applied in other the process treatment system and method, and is not limited in system and method described above.

The element of various different embodiment described above and operation can combine and be used to provide further embodiment.The variation of these and other can be used for ATRCS according to above-mentioned specific descriptions.Other variation

More than describing the scheme that the VPMN of roaming mobile stations and the prevention TR between the HPMN are checked in detail, in order to inspiring those skilled in the art, and is not that protection scope of the present invention is limited.In spirit scope of the present invention, those skilled in the art can carry out a large amount of modifications or change with reference to the specific embodiment that the present invention discloses.For example, the present invention mainly from as the angle of the GSM network described in an embodiment under implement, but should be understood that, for CDMA, 3G, WCDMA, GPRS, WiFi (based on the WLAN (wireless local area network) of IEEE 802.11b standard), WiMAX, VOIP networks such as (Internet protocol voice), or other any common transportation communication networks, the present invention all can effectively implement, wherein in these communication networks, the terminal use is assembled usually, usually operating under " this locality " network of customization at them, and have other may cross the boundary of a country close on the ability of operating in the network.

Stop in the present invention in the middle of a plurality of examples of communication redirection repressible system (ATRCS), a large amount of terms that use in the exemplary example that is comprised and notion are all from GSM mobile telecommunication infrastructure field.Yet, use these instantiations should not be interpreted into and limit the invention under these media.To the system that stops communication redirection to check---a kind of method that the VPMN of roaming mobile stations and the prevention TR between the HPMN are checked, this checks with for being interviewed or the unknowable mode of ability of non-common network is carried out.This method is useful, and is provided by any telecommunication medium, and those telecommunication medium comprise: (i) any mobile telephone network comprises, but is not restricted to GSM, 3GSM, 3G, CDMA, WCDMA or GPRS, satellite phone or other mobile networks or system; (ii) any so-called WiFi equipment in family or user network use, this equipment also is configured to be used in is interviewed or non-family or unconventional network, this equipment comprises the non-device that is exclusively used in telecommunication, as PC, palm equipment or Windows mobile device; (iii) amusement controlling platform, Sony's gaming platform for example, PSP or other can send and receive the equipment of wireless signal by family or non-home network; Perhaps even (iv) be used to receive the static line device of radio communication, this static line device can carry out the device of the placement of all places under the situation that is maintained fixed the IP address, as D-link (D-link) the eye to eye device; Perhaps carry out the Telecom Facilities of speech exchange, for example the Telecom Facilities of Vonage company or Packet8 company by the IP communication.

Among the ATRCS embodiment of some that describe according to the present invention, the telecommunication path that this specification is followed from the calling party to the callee is called out.For fear of suspection, this calling can be used for normal voice calls, and wherein user's telecommunication apparatus also can carry out video, audiovisual or dynamic menu demonstration.Selectively, these equipment or calling can be text, video, photo or other communication datas.

Technical Reference

The GSM standard 902 of MAP standard (GSM 902 on MAP specification) digital cellular wireless communication systems (stage 2+) (Digital cellular telecommunicationsystem (Phase 2+)) MAP (MAP) technical descriptioons (Mobile Application Part (MAP) Specification)

(third generation partner planning technique specification 09.02, version 7.9.0, issue in 1998) (3GPP TS09.02 version 7.9.0 Release 1998)

The Q71X SCCP

Q70X transmission of messages point

The Q77X TCAP Transaction Capability Application Part

GSM1111SIM and mobile interface

The GSM1114SIM kit

The IR7320 roaming steering

GSM348 fail safe and aerial the download

GSM31048 fail safe and aerial the download

The GSM23119 Gateway Location Register

GSM408 mobile wireless interface network layer

GSM23122 travelling carriage handling procedure

GSM24008 mobile wireless interface network layer

GSM22011 serves accessibility

The GSM25304 idle pulley is selected

The GSM29010 network mapping that makes mistakes

The GSM29002 MAP

Appendix

Abbreviation	Explanation
		3G	Third Generation of mobile (3G (Third Generation) Moblie)
BSC	Base Station Controller (base station controller)
		BCSM	Basic Call State Model (Basic Call State Model BCSM)

CAMEL	Customized Applications for Mobile network Enhanced Logic (customization of mobile network's enhanced logic is used)
		CDMA	Code Division Multiple Access (code division multiple access)
CLI	Calling Line Identification (call line identification)
		CAP	Camel Application Part (CAMEL Application Part)
CSI	Camel Subscription Information (CAMEL user signing contract information)
		GMSC	Gateway MSC (GMSC (gateway mobile switching center))
GLR	Gateway Locatioin Re gister (Gateway Location Register)
		GPRS	General Packet Radio Service (GPRS)
GSM	Global System for Mobile communication (global system for mobile communications)
		GSM SSF	GSM Service Switching Function (GSM serves controlled function)
HLR	Home Location Register (attaching position register)
		HPLMN	Home Public LandMobile Network (home public land mobile network)
HPMN	Home Public Mobile Network (local public mobile network)
		IMSI	International Mobile Subscriber Identity (international mobile subscriber identity code)

IN	Intelligent Network (intelligent network)
		INAP	Intelligent Network Application Part (intelligent network application part)
IDP	Initial DP IN/CAP message (Initial Detection Point intelligent network/CAP message)
		ISUP	ISDN User Part (ISDNYong Hubufen)
MAP	Mobile Application Part (MAP)
		MCC	Mobile Country Code (Mobile Country Code MCC)
MNC	Mobile Network Code (mobile network's coding)
		MO	Mobile Originated (mobile originating)
MSC	Mobile Switch Center (mobile switching centre)
		MSISDN	Mobile Subscriber ISDN Number (mobile subscriber ISDN number)
MSRN	Mobile Station Roaming Number (mobile station roaming number)
		MT	Mobile Terminated (portable terminal)
NDC	National Destination Code (national goal sign indicating number)
		ODB	Operator Determined Barring (Operator Determined Barring)
OTA	Over The Air (the aerial download)

O-CSI	Originating CAMEL Subscription Information (the CAMEL user signing contract information starts)
		PRN	Provide Roaming Number (Providing Roaming Number)
RNA	Roaming Not Allowed (roaming does not allow)
		RR	Roaming Restricted (roaming restriction)
SIM	SubscriberIdentify Module (subscriber identification module)
		SRI	Send Routing Information (transmission routing iinformation)
SS	Supplementary Services (supplemental services)
		SS7	Signaling System 7 (Signaling System 7(SS-7))
STP	Signal Transfer Point (signalling transfer point)
		TCAP	Transaction Capabilities Application Part (TCAP Transaction Capability Application Part)
T-CSI	Terminating CSI (terminal CSI)
		VAS	Value Added Service (value-added service)
VLR	Visited Location Register (location register of being interviewed)
		VMSC	Visited Mobile Switch Center (mobile switching centre is interviewed)

VPLMN	Visited Public LandMobile Network (public land mobile network of being interviewed)
		VPMN	Visited Public Mobile Network (public mobile network is interviewed)

Claims (50)

1. the public mobile network in this locality (HPMN) method that the prevention communication redirection of visiting the roaming mobile stations in the public mobile network (VPMN) is checked, this method may further comprise the steps:

--by observing the exchange of at least one registration message between described VPMN and described HPMN, detect being forced between described roaming mobile stations and the VPMN that does not recommend and be connected;

--control described roaming mobile stations and restart registration attempt under the VPMN that recommends.

2. the method for claim 1 is characterized in that, detects the described exchange that comprises the described registration message of passive monitoring between described VPMN and described HPMN that is forced to connect.

3. the method for claim 1 is characterized in that, detects the described exchange that comprises the described registration message of active monitoring between described VPMN and described HPMN that is forced to connect.

4. the method for claim 1 is characterized in that, but detects the described a plurality of LUP message that comprise that inspection is received in the time interval in preset threshold that are forced to connect.

5. method as claimed in claim 4 is characterized in that, controls described roaming mobile stations and comprises that sending the position upgrades refusal of registration message, but make response with the LUP message to the predetermined quantity received in the time interval in described preset threshold.

6. method as claimed in claim 5 is characterized in that, the LUP message of described predetermined quantity is one or more.

7. method as claimed in claim 5 is characterized in that, but the described preset threshold time interval is 15 seconds.

8. method as claimed in claim 4 is characterized in that, but further comprises the quantity based on the described LUP message of receiving in the time interval in described preset threshold, but the step in the described preset threshold time interval is set on statistics ground.

9. the method for claim 1 is characterized in that, detect described be forced to connect comprise the time slot of inspection between two continuous LUP message.

10. method as claimed in claim 9 is characterized in that, controls described roaming mobile stations and comprises that sending the position upgrades refuse information, so that described two continuous LUP message of receiving after the time interval of the prolongation that can set difference are made response.

11. method as claimed in claim 10 is characterized in that, but the time interval of the described prolongation of setting is 2 times of the preset threshold time interval.

12. method as claimed in claim 10 is characterized in that, the time interval of the described prolongation of setting is 30 seconds.

13. method as claimed in claim 10 is characterized in that, described transmission position is upgraded refuse information and is only carried out preset times.

14. method as claimed in claim 13 is characterized in that, described preset times is in 1 to 2 scope.

15. the method for claim 1, it is characterized in that, detect described be forced to connect be included in the time interval that can set, for the departure roamer of the number of thresholds of under identical described VPMN, registering, check position renewal (LUP) message of after successful registration, receiving.

16. method as claimed in claim 15 is characterized in that, the described time interval of setting is 10 minutes.

17. method as claimed in claim 15 is characterized in that, described departure roamer's number of thresholds is at least one.

18. method as claimed in claim 15 is characterized in that, described departure roamer's number of thresholds is calculated as the percentage to all departure roamers of described VPMN registration.

19. the method for claim 1 is characterized in that, controls described roaming mobile stations and is included in after time interval of setting after VPMN has issued LUP ack, and sends MAP-Cancel Location message.

20. method as claimed in claim 19 is characterized in that, the described time interval of setting is 10 minutes.

21. the method for claim 1 is characterized in that, controls described roaming mobile stations and comprises that reception from after the time interval of setting after the MAP RestoreData of VPMN, sends MAP-Cancel Location message.

22. method as claimed in claim 21 is characterized in that, the described time interval of setting is 10 minutes.

23. the method for claim 1 is characterized in that, controls described roaming mobile stations and comprises that the number of times setting sends ISD (RR), so that the ISD ACK message that has the system failure, unknown data value and missing data is made response.

24. the method for claim 1 is characterized in that, detects described position renewal (LUP) message that comprises that inspection is received in for the time interval of setting after the RNA message of the specific travelling carriage on the specific VPMN that is forced to connect.

25. method as claimed in claim 24, it is characterized in that, control described roaming mobile stations and comprise transmission RNA message, come last described RNA message is sent to described roaming mobile stations, the LUP message of attempting to receive in the described time cycle of setting of described VPMN registration is made response.

26. method as claimed in claim 24 is characterized in that, the described time cycle of setting is 20 seconds.

27. the method for claim 1 is characterized in that, controls described roaming mobile stations and comprises and send the RNA code of makeing mistakes that so that the position updating request from VPMN is made response, wherein this VPMN forbids the OTA message from described HPMN.

28. the system that the public mobile network in this locality (HPMN) checks the prevention communication redirection of visiting the roaming mobile stations in the public mobile network (VPMN), this system comprises:

--detecting module, described detecting module are observed at least one registration message that exchanges between described VPMN and described HPMN;

--detection module, described detection module detect being forced between described roaming mobile stations and the VPMN that does not recommend and are connected;

--redirection module, described redirection module are controlled described roaming mobile stations and are restarted registration attempt under the VPMN that recommends.

29. system as claimed in claim 28 is characterized in that, described VPMN and described HPMN are the part of wireless network.

30. system as claimed in claim 29 is characterized in that, described wireless network comprises GSM, GPRS, 3G, CDMA, WCDMA, TCDMA, WLL, WiFi, WiMax and voip network.

31. system as claimed in claim 28 is characterized in that, described detecting module is tackled the signaling link between described HPMN and the international STP.

32. system as claimed in claim 31 is characterized in that, the described registration message that described detecting module passive monitoring exchanges between described VPMN and described HPMN.

33. system as claimed in claim 28 is characterized in that, described detecting module is coupled to the roaming STP of described HPMN.

34. system as claimed in claim 33 is characterized in that, described detecting module is initiatively monitored the described registration message that exchanges between described VPMN and described HPMN.

35. system as claimed in claim 28 is characterized in that, the described registration message that described detecting module monitoring exchanges between VPMN and HPMN STP.

36. computer program, comprise computer-readable medium, this medium comprises and is used for the computer readable program code that local public mobile network (HPMN) checks the prevention communication redirection of visiting the roaming mobile stations in the public mobile network (VPMN), and this computer program comprises:

--the computer readable program code that is used to detect, the described computer readable program code that is used to detect is configured to by the registration message of observing at least one exchange between described VPMN and described HPMN, detects that possible being forced to is connected between described roaming mobile stations and the VPMN that does not recommend;

--the computer readable program code that is used to control, the described computer readable program code that is used to control is configured to control described roaming mobile stations, to restart the registration attempt under the VPMN that recommends.

37. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used for passive monitoring, the described computer readable program code that is used for passive monitoring is configured to monitor passively the registration message that exchanges between described VPMN and described HPMN.

38. computer program as claimed in claim 36, it is characterized in that, comprise being used for the initiatively computer readable program code of monitoring, the described computer readable program code that is used for initiatively monitoring is configured to monitor on one's own initiative the registration message that exchanges between described VPMN and described HPMN.

39. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to check, but the described computer readable program code that is used to check is set the quantity that checks the LUP message of receiving in the time interval in preset threshold.

40. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send is configured to send the position and upgrades refusal of registration message, but makes response with the LUP message to the predetermined quantity received in the time interval in described preset threshold.

41. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to set, the described computer readable program code that is used to set is based on the quantity of the LUP message of receiving in the described setting-up time threshold interval, but the described preset threshold time interval is set on statistics ground.

42. computer program as claimed in claim 36 is characterized in that, comprises the computer readable program code that is used to check, the described computer readable program code that is used to check is set checks two time differences between the continuous LUP message.

43. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send is configured to send the position and upgrades refuse information, so that described two continuous LUP message of receiving after the time interval of the prolongation that can set difference are made response.

44. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to check, the computer readable program code of the inspection that is set forth in was configured in the time interval that can set, for the departure roamer of the number of thresholds of under identical described VPMN, registering, check position renewal (LUP) message of after successfully registering, receiving.

45. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send was configured to after time interval of setting issued LUP ack to VPMN after, and sent MAP-Cancel Location message.

46. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send is configured to send MAP-Cancel Location message after receiving from the time interval of setting after the MAP RestoreData of VPMN.

47. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to check, the described computer readable program code that is used to check is configured to send ISD (RR) with the number of times that can set, so that the ISD ACK message that has the system failure, unknown data value and missing data is made response.

48. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to check, the described computer readable program code that is used to check is configured to check position renewal (LUP) message of receiving in for the time interval of setting after the RNA message of the specific travelling carriage on the specific VPMN.

49. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send is configured to send RNA message, come last described RNA message is sent to described roaming mobile stations, the LUP message of attempting to receive in the described time cycle of setting of described VPMN registration is made response.

50. computer program as claimed in claim 36, it is characterized in that, comprise the computer readable program code that is used to send, the described computer readable program code that is used to send is configured to send the RNA code of makeing mistakes, so that the position updating request from VPMN is made response.

Images