CN101098551B - Calling route selection method and communication system under roaming access mode - Google Patents
Calling route selection method and communication system under roaming access mode Download PDFInfo
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Abstract
The invention relates to a call route select method under roaming access mode, wherein when PSTNGW of fixed network of attached network judges that the call number of accessed call is a user number roamed from the local network, and adding a mark into the called number, while the mark presents the call number as the user number roamed from the local network and accesses route to the network gate mobile exchange center of attached mobile network, and when intertoll recognizes the mark, routing the call via other intertolls or directly routing the call to the network gate mobile exchange centerrepresented in the mark, and when the intertoll not recognizes the mark, normally accessing. The invention can resolve the problem of prior art which needs TS conversion when PSTNGW of fixed network of attached network under roaming access mode is not directly connected with the network gate mobile exchange center of the mobile network of attached network.
Description
Technical field
The present invention relates to wireless communication field, relating in particular at roaming access mode needs route selecting method and associated communication system under the situation of fixed network (3) relaying of home network.
Background technology
Roaming between the mobile network can be adopted traditional international roaming pattern, also can adopt the pattern of " roaming inserts ".Under roaming access mode, mobile subscriber roams in the rete mirabile (mobile network of rete mirabile) (being the label 1 among Fig. 2 a) of the mobile network (seeing the label 2 among Fig. 2 a) that is different from the home network that this mobile subscriber registers, and this rete mirabile is by another operator's operation that is different from this network operation business that this mobile subscriber registers.In this case, this mobile subscriber makes a call, the mobile switching centre (MSC) of rete mirabile (1) finds that it is not after the user of this rete mirabile (1) calling of sending, it is not dealt with, but the GMSC (gateway mobile switching center) (GMSC) (11) by this rete mirabile (1) this calling nearby connection is returned one of home network that this mobile subscriber belongs to the nearest or nearer GMSC (gateway mobile switching center) (GMSC) (21) of the mobile subscriber who sends calling, shown in Fig. 2 a, Fig. 2 a shows near the situation of roaming access mode of the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) that can find home network the GMSC (gateway mobile switching center) of rete mirabile (1) (GMSC) (11), the GMSC (gateway mobile switching center) (GMSC) (21) of in this case can nearby connection returning the mobile network (2) of this home network is this call routing by the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network according to called number.But problem is, the GMSC (gateway mobile switching center) (GMSC) (11) of rete mirabile (1) not necessarily can be directly in local local network be connected with the GMSC (gateway mobile switching center) (21) of the mobile network (2) of home network.Under the present Internet resources of mobile network are not very complete situation, it often is fixed network (3) gateway exchange (being public switched telephone network (PSTN) gateway (31)) that can only connect home network at local local network, shown in Fig. 2 b and 2c, in this case, produced existing resource how to utilize existing fixed network facility, come to call out the problem of the GMSC (gateway mobile switching center) (GMSC) (21) of changeing the mobile network (2) that is routed to an available home network for roaming access mode.In this case, the GMSC (gateway mobile switching center) (GMSC) (11) how the fixed network (3) that relates to home network distinguishes rete mirabile (1) is sent the calling that the incoming call that comes is the user that goes out from this network roaming or the problem of rete mirabile user's calling to, because not only the user's that goes out of this network roaming calling is because roaming access problem can be sent back to the public switched telephone network gateway (PSTN GW) (31) of the fixed network (3) of home network by the GMSC (gateway mobile switching center) of rete mirabile (1) (GMSC) (11), and this calling nature can be gone back to the public switched telephone network gateway (31) of the fixed network (3) of home network by the GMSC (gateway mobile switching center) of rete mirabile (1) (GMSC) (11) when user in the customer call Home Network of rete mirabile, and these two kinds of callings are different when follow-up route, such as the same 010-66046235 that calls out, in the previous case owing to be that roaming inserts, must get back to the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network handles, GMSC (gateway mobile switching center) (GMSC) (21) by the mobile network (2) of home network is carried out follow-up continuing, at this moment Fig. 2 b, the PSTN GW (31) of 2c needs to consider is that the GMSC (gateway mobile switching center) (GMSC) (21) that how this calling is transferred to the mobile network (2) of home network is carried out further route and handled, and under latter event, owing to be ordinary call, it is just passable then only to need to route the call to called number through some toll switch (TS) (32,33 etc.) by PSTN.But the called number of both of these case may be the same, as mentioned above, may all be 010-66046235, and in view of both of these case, in fact need to distinguish different routes, a kind of GMSC (gateway mobile switching center) (GMSC) (21) that need get back to the mobile network (2) of home network earlier, and another kind does not need, and only see called number, they are all the same, therefore can't distinguish this two kinds of different routing conditions, cause the route confusion, originally in the previous case, the area code that calling should be got back to home network is that the mobile network (2) in 010 area continues again, but because conventional art can't be distinguished both of these case, cause two kinds of callings under the situation all at the PSTNGW (31) of Fig. 1 (Fig. 1 shows the structural representation of the fixed network call proceeding of prior art) process TS (32,33 etc.) area code of having got back to home network by PSTN (34) is that the fixed network (3) in 010 area continues, caused the two kinds of situations that should divide into different routes to become a kind of routing mode, thereby cause the route confusion, the influence that this route confusion is brought is especially very serious when some function of the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network that needs home network (2) in some cases.
The GMSC (gateway mobile switching center) (GMSC) (21) of the PSTN GW (31) of the fixed network of angelica net (3) and the mobile network (2) of home network is when directly linking to each other, and this problem is to solve easily, shown in Fig. 2 b.This moment home network the PSTN GW (31) of fixed network (3) judge the calling number of the calling enter be the Subscriber Number roamed away in the Home Network or other network users number (concrete grammar can for, for example, analyzing front three is this network No. section or other network No. section, as 138 are mobile networks, the 189th, telecommunications network), when judging when being the Subscriber Number of roaming away in the Home Network, this calling directly is transferred to the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of this home network, when judging when being other network users number, to call out by TS (32,33 etc.) be routed to called number through PSTN (34), problem has just solved.Problem is shown in Fig. 2 c, the PSTN GW (31) of the fixed network of angelica net (3) not with the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network when directly linking to each other, problem has just occurred.Because the PSTN GW (31) of the fixed network of home network (3) does not directly link to each other with the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network, the multistage toll switch (32 that just needs toll network, 32 etc.) be transferred to the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network, the calling number of the calling that enters that how to allow these TS know to judge is Subscriber Number or other network users number of roaming away in the Home Network, make these TS can correctly be transferred to this calling the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network, just become a problem.
Summary of the invention
One of purpose of the present invention is the PSTNGW of fixed network that solves the angelica net of the prior art problem when directly not linking to each other with the GMSC (gateway mobile switching center) of the mobile network of home network, make in switching process, can allow the TS of switching know that the calling number of the calling of judging that enters is Subscriber Number or other network users number of roaming away in the Home Network, thereby make these TS can correctly be transferred to this calling the GMSC (gateway mobile switching center) of the mobile network of home network.
One of solution of the present invention is: the route selecting method under a kind of situation of the fixed network relaying that needs home network at roaming access mode comprises:
When S1. the public switched telephone network gateway of the fixed network of home network receives from calling that the GMSC (gateway mobile switching center) of other net is sent, judge that calling number is Subscriber Number or other network users number of roaming away in the Home Network;
S2. when judge among the step S1 be this network roaming go out Subscriber Number the time, the public switched telephone network gateway adds in called number and shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
S3. after adding described sign, the public switched telephone network gateway is routed to toll switch by the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to route;
S4. when judging among the step S1 when being other Subscriber Number, the public switched telephone network gateway is routed to toll switch according to called number with route;
S5. whether toll switch is judged to have in called number and is describedly shown that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
If S6. be judged as among the step S5 be, then toll switch judges whether route to be routed to another toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another toll switch, continues execution in step S5; Under unwanted situation with route switching to ownership mobile network GMSC (gateway mobile switching center), execution in step S8;
If S7. be judged as among the step S5 not, then toll switch judges whether and route need be routed to another toll switch according to called number, under the situation of needs route is routed to this another toll switch, continues execution in step S5; Under unwanted situation, route switching is arrived called number;
S8. belong to the mobile network GMSC (gateway mobile switching center) called number is arrived in this call proceeding.
In a preferred embodiment, the calling number of this time calling out that shows among the step S2 is that Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to are to add like this: if calling number is the Subscriber Number of roaming away in the Home Network, then the area code of called number is shone upon, this mapping makes for the various called number area codes that may occur, in the various called number area codes that may occur before called number area code after the mapping and the mapping any one is all different, and the various called number area codes that may occur after the mapping differ from one another; Whether step S5 middle-long distance office is judged has the described calling number of this time calling out that shows to be the Subscriber Number of roam away in the Home Network and to show that the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to is performed such in called number: since any one in the called number area code that may occur after the mapping with shine upon before in the called number area code that may occur any one different, therefore, if it is that any one that belong in the called number area code that may occur after the mapping is the Subscriber Number of roaming away in the Home Network with regard to judging the calling number of this time calling out that toll switch is found the called number area code, at this moment just separate the called number area code of mapping after this mapping, the pairing ownership mobile network of called number area code GMSC (gateway mobile switching center) before the called number area code before obtaining shining upon, this mapping is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; If finding the called number area code not belong in the called number area code that may occur after the mapping any one, just to judge the calling number of this time calling out be not the Subscriber Number of roaming away in the Home Network.
In one embodiment, the mapping of described area code to called number is such: all the area code of possible called number is all with 0 beginning before the mapping, and what will start after the mapping 0 becomes 9, and toll switch becomes 0 again with 9 separating when shining upon.
In a further advantageous embodiment, the calling number of this time calling out that shows among the step S2 is that Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to are to add like this: the front at called number adds particular prefix, this particular prefix differs from the n position of the front portion of the various called numbers that may occur before prefixing not, the length of this particular prefix of n=; Whether step S5 middle-long distance office is judged has the described calling number of this time calling out that shows to be the Subscriber Number of roaming away in the Home Network and to show that the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to is performed such in called number: be this particular prefix if judge the preceding n position of the called number that receives, then judging the calling number of this time calling out is the Subscriber Number of roaming away in the Home Network, at this moment remove this particular prefix, the pairing ownership mobile network of the called number area code GMSC (gateway mobile switching center) of the called number that obtains is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; If judging the preceding n position of the called number that receives is not this particular prefix, then judging the calling number of this time calling out is not the Subscriber Number of roaming away in the Home Network.
The present invention also provides a kind of communication system, and it can realize routing under roaming access mode needs the situation of fixed network relaying of home network, and this system comprises:
The GMSC (gateway mobile switching center) of rete mirabile;
The public switched telephone network gateway of the fixed network of home network, it is coupled to the GMSC (gateway mobile switching center) of rete mirabile, and comprise: when receiving, judge that calling number is the Subscriber Number roamed away in the Home Network or the parts of other network users number from calling that the GMSC (gateway mobile switching center) of rete mirabile is sent; Be coupled to described judgement calling number and be the Subscriber Number roam away in the Home Network or the parts of other network users number, when judge be this network roaming go out Subscriber Number the time in called number, add and show that this time calling number of calling is Subscriber Number of roaming away in the Home Network and the parts that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; Be coupled to parts parts, that after adding described sign, route is routed to toll switch of described adding sign by the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; Be coupled to described judgement calling number and be the Subscriber Number roamed away in the Home Network or the parts of other network users number, when described judgement calling number be that the Subscriber Number roamed away in the Home Network or the parts of other network users number are judged the parts that according to called number route are routed to toll switch when being other Subscriber Number;
The toll switch of the fixed network of home network, be coupled to the public switched telephone network gateway of the fixed network of home network, comprise: judge in called number, whether to have describedly to show that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the parts that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; In called number, whether there are the parts of described sign to be coupled with described judgement, if whether described judgement has the parts of described sign to be judged as in called number, then judge whether route to be routed to another toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another toll switch, under unwanted situation, route switching is arrived the parts of ownership mobile network GMSC (gateway mobile switching center); In called number, whether there are the parts of described sign to be coupled with described judgement, if whether described judgement has the parts of described sign to be judged as not in called number, then judge whether route to be routed to another toll switch according to called number, under the situation of needs, route is routed to this another toll switch, under unwanted situation, route switching is arrived the parts of called number;
The GMSC (gateway mobile switching center) of ownership mobile network.
Since among the present invention when PSTN GW judge be this network roaming go out Subscriber Number the time, the public switched telephone network gateway adds in called number and shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, and after toll switch is received the calling of coming of transferring, whether judgement has in called number describedly shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, thereby can know whether this time call out is the Client-initiated that this network roaming is gone out, and under the situation that is, know the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, thereby the Client-initiated of going out at this network roaming is called out and is taked different strategies with other customer call, the problem when the PSTN GW of fixed network that has solved the angelica net of prior art does not directly link to each other with the GMSC (gateway mobile switching center) of the mobile network of home network.
Description of drawings
Fig. 1 shows the structural representation of the fixed network call proceeding of prior art.
Fig. 2 a shows in the GMSC (gateway mobile switching center) of rete mirabile (1) (GMSC) (11)
Near can find the situation of roaming access mode of GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network, in this case can nearby connection return the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of this home network.
Fig. 2 b shows near the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) that can not find home network the GMSC (gateway mobile switching center) of rete mirabile (1) (GMSC) (11), thereby must utilize PSTN GW (31) switching of the fixed network (3) of home network nearby, the situation of the roaming access mode that directly links to each other of the PSTN GW (31) of the fixed network (3) of home network and the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network simultaneously.
Fig. 2 c shows near the GMSC (gateway mobile switching center) (GMSC) (21) that can not find the mobile network (2) of home network the GMSC (gateway mobile switching center) in rete mirabile (1) (GMSC) (11) that the present invention is applied to, thereby must utilize PSTN GW (31) switching of the fixed network (3) of home network nearby, the situation of the roaming access mode that directly do not link to each other again of the PSTN GW (31) of the fixed network (3) of home network and the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network simultaneously.
Fig. 3 shows the block diagram of communication system of the present invention.
Fig. 4 shows the flow chart of the method for the present invention's employing.
Embodiment
Fig. 3 shows communication system of the present invention, it can not directly be connected with the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network in local local network in the GMSC (gateway mobile switching center) that is subjected to network resource constraints rete mirabile (1) (GMSC) (11), thereby must utilize PSTN GW (31) switching of the fixed network (3) of home network nearby, realize routing under the situation of the roaming access mode that directly do not link to each other again of the PSTN GW (31) of the fixed network (3) of home network and the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of home network simultaneously.This system comprises:
The GMSC (gateway mobile switching center) (11) of rete mirabile (1), the user of the mobile network of angelica net (2) roams into rete mirabile (1) when making a call, rete mirabile (1) finds that it is not the Client-initiated calling of this rete mirabile (1), just should the GMSC (gateway mobile switching center) (GMSC) (21) of the mobile network (2) of the home network nearby of transferring back will should be called out, but near the GMSC (gateway mobile switching center) (GMSC) (21) that does not have the mobile network (2) of home network finding just is transferred to it earlier the public switched telephone network gateway (31) of the fixed network (3) of home network nearby;
The public switched telephone network gateway (31) of the fixed network of home network (3), it is coupled to the GMSC (gateway mobile switching center) (11) of rete mirabile (1), and comprise: when receiving from calling that the GMSC (gateway mobile switching center) (11) of rete mirabile (1) is sent, judge that calling number is the interior Subscriber Number of roaming away of Home Network or the parts (311) of other network users number, concrete determination methods can for, for example, analyzing front three is this network No. section or other network No. section, as 138 are mobile networks, the 189th, telecommunications network, because the former items of number of at present different networks all are different separately, therefore, as long as can judge according to former positions is that user's number, can certainly stipulate back several the differences of IP telephone numbers, just can judge from back several difference is the number of which network, this concrete determination methods can be designed as required by those skilled in the art, and be that those skilled in the art make easily, parts (311) can be programmed according to this determination methods by those skilled in the art and be realized; Being coupled to described judgement calling number is the interior Subscriber Number of roaming away of Home Network or the parts (311) of other network users number, when judge be this network roaming go out Subscriber Number the time in called number, add and show that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the parts (312) that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, this adding can have multiple mode, wherein first kind of implementation is if calling number is the Subscriber Number of roaming away in the Home Network, then the area code of called number is shone upon, this mapping makes for the various called number area codes that may occur, in the various called number area codes that may occur before called number area code after the mapping and the mapping any one is all different, and the various called number area codes that may occur after the mapping differ from one another, all start such as the area code of 1. shining upon preceding all possible called numbers with 0, such as 010,0321,0451,022 etc., the network design of China Telecom is also done so at present, because all area codes all are with 0 beginning before the mapping, what will start after the mapping 0 becomes 9, promptly 910,9321,9451,922 etc., if the called number of the calling that follow-up like this TS receives if with 9 the beginning, this TS just knows that this calling is the GMSC (21) of the mobile network (2) that will arrive home network, GMSC (21) specific to the mobile network (2) of which home network sees the area code that becomes again after 09, such as the called number area code of receiving is 910, TS has known that it is that the user that this network roaming is gone out makes this moment, then it is reverted to 010, just indicating ownership mobile network (2) GMSC (gateway mobile switching center) (21) that route is routed to is that area code is 010 ownership mobile network (2) GMSC (gateway mobile switching center) (21), or 2. in parts (312), deposit a mapping table, this mapping table has write down for the called number area code before each possible mapping, what called number area code after the mapping of its correspondence is, certain this mapping still will be followed above-mentioned rule, i.e. this mapping makes for the various called number area codes that may occur, in the various called number area codes that may occur before called number area code after the mapping and the mapping any one is all different, and the various called number area codes that may occur after the mapping differ from one another, called number area code before parts (312) will shine upon according to this mapping table then is mapped as the called number area code after the mapping, (as described later) deposited a same mapping table in the parts (321) of TS then, and after the parts of TS (321) were received calling, the called number area code of seeing this calling was of called number area code after the mapping in the mapping table, the calling number of this time calling out with regard to explanation is the Subscriber Number of roaming away in the Home Network, become the preceding called number area code of mapping again according to the called number area code of this same mapping table after will shine upon then, the ownership mobile network GMSC (gateway mobile switching center) that route is routed to is exactly the ownership mobile network GMSC (gateway mobile switching center) of the preceding called number area code of this mapping, and Ying She mode is except 1. in addition, 2. outer can be such as not being that 0 of beginning is become 9 entirely, but become other number, can also be with 2 of beginning, 3, the n position becomes other 2,3, the n position all is fine, in addition, can also regulation last position of all called number area codes before the mapping all be 0, after the mapping last position is become 9, certainly, doing like this is the routine of running counter to present telecommunications network, Ying She mode can also be carried out the computing of position to all of called number area code in addition, such as allowing some addition get mantissa etc., this computing makes for the called number area code before the various computings that may occur, and any one in the preceding various called number area codes that may occur of the called number area code after the computing and computing is all different, and the various called number area codes that may occur after the computing differ from one another, the parts of back (321) are separated computing according to the inverse operation of this computing more then, and all can have each seed implementation for this first kind of implementation, as long as satisfying this mapping makes for the various called number area codes that may occur, in the various called number area codes that may occur before called number area code after the mapping and the mapping any one is all different, and the various called number area codes that may occur after the mapping differ from one another, and all are fine, second kind of implementation is to add particular prefix in the front of called number, this particular prefix differs from the n position of the front portion of the various called numbers that may occur before prefixing not, and the length of this particular prefix of n=is ### or AAA or ###AAA such as this particular prefix, just become ###AAA01066046235 such as 01066046235, because obviously not with the called number of ### or AAA or ###AAA beginning, therefore be this particular prefix, such as receiving ###AAA01066046235 when the preceding n position that the parts (321) of back are judged the called number that receives, one sees preceding 6 ###AAA, with regard to judging the calling number of this time calling out is the Subscriber Number of roaming away in the Home Network, at this moment removes this particular prefix, and the called number area code 010 pairing ownership mobile network GMSC (gateway mobile switching center) of the called number 1066046235 that obtains is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, except first kind, can also there be alternate manner in called number, to add outside the second way and shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, such as adding specific suffix in certain position of called number, this specific suffix differs from the n position at the rear portion of the various called numbers that may occur before not adding suffix, the length of this particular prefix of n=, can also between the area code of called number and local number, add such the sewing in n position, numerous.In a word, those skilled in the art can benefit from above-mentioned instruction and add in called number in every way and show that the calling number of this time calling out is Subscriber Number of roam away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, parts (312) can be by those skilled in the art according to above-mentioned functions by the programming realization; Be coupled to the parts (314) parts (312), that after adding described sign, route is routed to the switching toll switch of described adding sign by the ownership mobile network GMSC (gateway mobile switching center) (21) that route will be routed to, decide according to a destination that route to be transferred to which toll switch earlier be very common in the prior art, because in common PSTN GW, also will route be routed to a switching TS, so these parts (314) can be realized by programming according to its function by those skilled in the art according to called number; Being coupled to described judgement calling number is the interior Subscriber Number of roaming away of Home Network or the parts (311) of other network users number, when described judgement calling number is that the Subscriber Number roamed away in the Home Network or the parts (311) of other network users number are judged the parts (313) that according to called number route are routed to the switching toll switch when being other Subscriber Number, decide according to a destination that route to be transferred to which toll switch earlier be very common in the prior art, in common PSTN GW, also will route be routed to a switching TS, so these parts (313) can be realized by those skilled in the art by programming according to its function according to called number;
The toll switch (32 of the fixed network (3) of some (one or more) home network, 33), be coupled to the public switched telephone network gateway (31) of the fixed network (3) of home network, comprise: judge in called number, whether to have describedly to show that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the parts (321) that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, it is relative with parts (312) and realize, when parts (312) adopt first kind of above-mentioned implementation, since any one after the mapping in the called number area code that may occur with shine upon before in the called number area code that may occur any one different, therefore, parts (321) are if find that the called number area code is any one that belongs in the called number area code that may occur after the mapping, as top example 910 in 1., with regard to judging the calling number of this time calling out is the Subscriber Number of roaming away in the Home Network, at this moment just separate the called number area code of mapping after this mapping, called number area code before obtaining shining upon, as becoming 0 again with 9, obtain 010, called number area code 010 pairing ownership mobile network GMSC (gateway mobile switching center) before this mapping is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, do not belong to any one in the called number area code that may occur after the mapping if find the called number area code, as 0312, just judging the calling number of this time calling out is not the Subscriber Number of roaming away in the Home Network, when parts (312) adopt second kind of above-mentioned implementation, parts (321) are this particular prefix if judge the preceding n position of the called number that receives, then judging the calling number of this time calling out is the Subscriber Number of roaming away in the Home Network, at this moment remove this particular prefix, the pairing ownership mobile network of the called number area code GMSC (gateway mobile switching center) of the called number that obtains is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, if judging the preceding n position of the called number that receives is not this particular prefix, then judging the calling number of this time calling out is not the Subscriber Number of roaming away in the Home Network; In called number, whether there are the parts (321) of described sign to be coupled with described judgement, if whether described judgement has the parts (321) of described sign to be judged as in called number, then judge whether route to be routed to another switching toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another switching toll switch, under unwanted situation, route switching is arrived the parts (323) of ownership mobile network GMSC (gateway mobile switching center), judge whether route to be routed to another switching toll switch and under the situation of needs route is being routed to this another switching toll switch and under unwanted situation, is being the function that often runs in the prior art to the destination according to a destination route switching, and in the TS of prior art, also exist in order to continue according to called number judge whether needs with route be routed to another switching toll switch and under the situation of needs route is routed to this another switching toll switch and under unwanted situation with the technology of route switching to called number, therefore the ownership mobile network GMSC (gateway mobile switching center) according to route being routed to of these parts judges whether route need to be routed to another switching toll switch and under the situation of needs route is being routed to this another switching toll switch and in that promptly directly link at this toll switch under the unwanted situation can be by those skilled in the art by the programming realization to the function of this ownership mobile network GMSC (gateway mobile switching center) with route switching under the situation of ownership mobile network GMSC (gateway mobile switching center), therefore, these parts can be realized by programming; In called number, whether there are the parts (321) of described sign to be coupled with described judgement, if whether described judgement has the parts (321) of described sign to be judged as not in called number, then judge whether route to be routed to another switching toll switch according to called number, under the situation of needs, route is routed to this another switching toll switch, under unwanted situation, route switching is arrived the parts (322) of called number, similar with parts (323), parts (322) also are that the parts that can be realized by programming according to this function by those skilled in the art are (though only drawn 2 TS in the drawings, but just schematically, the number of TS can realize according to GMSC (21) or called number that several TS of needs on earth could arrive the mobile network (2) of home network, but each TS comprises above-mentioned parts 321,322,323);
The GMSC (gateway mobile switching center) (21) of the mobile network of home network (2).
By the above, can sum up the route selecting method under the situation of the fixed network relaying that needs home network at roaming access mode of the present invention, as shown in Figure 4, it comprises:
When S1. the public switched telephone network gateway of the fixed network of home network receives from calling that the GMSC (gateway mobile switching center) of other net is sent, judge that calling number is Subscriber Number or other network users number of roaming away in the Home Network;
S2. when judge among the step S1 be this network roaming go out Subscriber Number the time, the public switched telephone network gateway adds in called number and shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
S3. after adding described sign, the public switched telephone network gateway is routed to the switching toll switch by the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to route;
S4. when judging among the step S1 when being other Subscriber Number, the public switched telephone network gateway is routed to the switching toll switch according to called number with route;
S5. whether toll switch is judged to have in called number and is describedly shown that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
If S6. be judged as among the step S5 be, then toll switch judges whether route to be routed to another switching toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another switching toll switch, continues execution in step S5; Under unwanted situation with route switching to ownership mobile network GMSC (gateway mobile switching center), execution in step S8;
If S7. be not judged as among the step S5 not, then toll switch judges whether route to be routed to another switching toll switch according to called number, route is routed to this another switching toll switch under the situation of needs, continues execution in step S5; Under unwanted situation, route switching is arrived called number;
S8. belong to the mobile network GMSC (gateway mobile switching center) called number is arrived in this call proceeding.
The above is an illustrative embodiments of the present invention, and those skilled in the art can make multiple modification and distortion to it under the situation of claims protection range that do not come off.
Claims (5)
1. the route selecting method under the situation of fixed network (a 3) relaying that needs home network at roaming access mode comprises:
When S1. the public switched telephone network gateway of the fixed network of home network (3) receives from calling that the GMSC (gateway mobile switching center) of other net is sent, judge that calling number is Subscriber Number or other network users number of roaming away in the Home Network;
S2. when judge among the step S1 be this network roaming go out Subscriber Number the time, the public switched telephone network gateway adds in called number and shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
S3. after adding described sign, the public switched telephone network gateway is routed to toll switch by the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to route;
S4. when judging among the step S1 when being other Subscriber Number, the public switched telephone network gateway is routed to toll switch according to called number with route;
S5. whether toll switch is judged to have in called number and is describedly shown that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
If S6. be judged as among the step S5 be, then toll switch judges whether route to be routed to another toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another toll switch, continues execution in step S5; Under unwanted situation with route switching to ownership mobile network GMSC (gateway mobile switching center), execution in step S8;
If S7. be judged as among the step S5 not, then toll switch judges whether and route need be routed to another toll switch according to called number, under the situation of needs route is routed to this another toll switch, continues execution in step S5; Under unwanted situation, route switching is arrived called number;
S8. belong to the mobile network GMSC (gateway mobile switching center) called number is arrived in this call proceeding.
2. according to the method for claim 1, it is characterized in that the calling number of this time calling out that shows among the step S2 is that Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to are to add like this: if calling number is the Subscriber Number of roaming away in the Home Network, then the area code of called number is shone upon, this mapping makes for the various called number area codes that may occur, in the various called number area codes that may occur before called number area code after the mapping and the mapping any one is all different, and the various called number area codes that may occur after the mapping differ from one another; Whether step S5 middle-long distance office is judged has the described calling number of this time calling out that shows to be the Subscriber Number of roam away in the Home Network and to show that the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to is performed such in called number: since any one in the called number area code that may occur after the mapping with shine upon before in the called number area code that may occur any one different, therefore, if it is that any one that belong in the called number area code that may occur after the mapping is the Subscriber Number of roaming away in the Home Network with regard to judging the calling number of this time calling out that toll switch is found the called number area code, at this moment just separate the called number area code of mapping after this mapping, the pairing ownership mobile network of called number area code GMSC (gateway mobile switching center) before the called number area code before obtaining shining upon, this mapping is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; If finding the called number area code not belong in the called number area code that may occur after the mapping any one, just to judge the calling number of this time calling out be not the Subscriber Number of roaming away in the Home Network.
3. according to the method for claim 2, the mapping that it is characterized in that described area code to called number is such: before the mapping all the area code of possible called number all with 0 beginning, what will start after the mapping 0 becomes 9, and toll switch becomes 0 again with 9 when separating mapping.
4. according to the method for claim 1, it is characterized in that the calling number of this time calling out that shows among the step S2 is that Subscriber Number of roaming away in the Home Network and the sign that shows the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to are to add like this: the front at called number adds particular prefix, this particular prefix differs from the n position of the front portion of the various called numbers that may occur before prefixing not, the length of this particular prefix of n=; Whether step S5 middle-long distance office is judged has the described calling number of this time calling out that shows to be the Subscriber Number of roaming away in the Home Network and to show that the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to is performed such in called number: be this particular prefix if judge the preceding n position of the called number that receives, then judging the calling number of this time calling out is the Subscriber Number of roaming away in the Home Network, at this moment remove this particular prefix, the pairing ownership mobile network of the called number area code GMSC (gateway mobile switching center) of the called number that obtains is exactly the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to; If judging the preceding n position of the called number that receives is not this particular prefix, then judging the calling number of this time calling out is not the Subscriber Number of roaming away in the Home Network.
5. communication system, it can realize routing under roaming access mode needs the situation of fixed network (3) relaying of home network, this system comprises:
The GMSC (gateway mobile switching center) (11) of rete mirabile (1);
The public switched telephone network gateway (31) of the fixed network of home network (3), it is coupled to the GMSC (gateway mobile switching center) (11) of rete mirabile (1), and comprises:
When receiving, judge that calling number is the Subscriber Number roamed away in the Home Network or the parts (311) of other network users number from calling that the GMSC (gateway mobile switching center) (11) of rete mirabile (1) is sent;
Be coupled to described judgement calling number and be the Subscriber Number roam away in the Home Network or the parts (311) of other network users number, when judge be this network roaming go out Subscriber Number the time in called number, add and show that this time calling number of calling is Subscriber Number of roaming away in the Home Network and the parts (312) that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
Be coupled to the parts (314) parts (312), that after adding described sign, route is routed to toll switch of described adding sign by the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
Be coupled to described judgement calling number and be the Subscriber Number roamed away in the Home Network or the parts (311) of other network users number, when described judgement calling number be that the Subscriber Number roamed away in the Home Network or the parts (311) of other network users number are judged the parts (313) that according to called number route are routed to toll switch when being other Subscriber Number;
The toll switch (32,33) of the fixed network of home network (3) is coupled to the public switched telephone network gateway (31) of the fixed network (3) of home network, comprising:
Whether judgement has in called number describedly shows that the calling number of this time calling out is Subscriber Number of roaming away in the Home Network and the parts (321) that show the sign of the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to;
In called number, whether there are the parts (321) of described sign to be coupled with described judgement, if whether described judgement has the parts (321) of described sign to be judged as in called number, then judge whether route to be routed to another toll switch according to the ownership mobile network GMSC (gateway mobile switching center) that route will be routed to, under the situation of needs, route is routed to this another toll switch, under unwanted situation, route switching is arrived the parts (323) of ownership mobile network GMSC (gateway mobile switching center);
In called number, whether there are the parts (321) of described sign to be coupled with described judgement, if whether described judgement has the parts (321) of described sign to be judged as not in called number, then judge whether route to be routed to another toll switch according to called number, under the situation of needs, route is routed to this another toll switch, under unwanted situation, route switching is arrived the parts (322) of called number;
The GMSC (gateway mobile switching center) (21) of ownership mobile network (2).
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| CN200610094143A CN101098551B (en) | 2006-06-27 | 2006-06-27 | Calling route selection method and communication system under roaming access mode |
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| CN105208542B (en) * | 2014-05-30 | 2019-02-26 | 中国电信股份有限公司 | Anchoring user dials roaming place fixed-line telephone implementation method, system and anchoring platform |
| CN106850567A (en) * | 2016-12-29 | 2017-06-13 | 恒安嘉新(北京)科技有限公司 | A kind of method and device that doubtful harmful call treatment is realized based on preceding slotting code |
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| CN1633187A (en) * | 2003-12-22 | 2005-06-29 | 华为技术有限公司 | Communication system based on subscriber small switch and method for realizing communication thereof |
| EP1555844A1 (en) * | 2004-01-13 | 2005-07-20 | Siemens Aktiengesellschaft | Method, apparatus and network arrangement for establishing calls in a communication network |
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| CN1452384A (en) * | 2002-02-01 | 2003-10-29 | 林炜 | System and method for moving direct dialling network telephone |
| CN1633187A (en) * | 2003-12-22 | 2005-06-29 | 华为技术有限公司 | Communication system based on subscriber small switch and method for realizing communication thereof |
| EP1555844A1 (en) * | 2004-01-13 | 2005-07-20 | Siemens Aktiengesellschaft | Method, apparatus and network arrangement for establishing calls in a communication network |
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