CN101945418A - Method and device for establishing media surface - Google Patents
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- CN101945418A CN101945418A CN2010102886201A CN201010288620A CN101945418A CN 101945418 A CN101945418 A CN 101945418A CN 2010102886201 A CN2010102886201 A CN 2010102886201A CN 201010288620 A CN201010288620 A CN 201010288620A CN 101945418 A CN101945418 A CN 101945418A
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Abstract
The invention discloses a method and a device for establishing a media surface. The method comprises that: in the circuit domain calling process, a base station controller receives at least one first IP address from a media gateway controller, wherein the first IP address is a media surface IP address of a media gateway; the media gateway controller tests the connectivity between at least one second IP address and the at least one first IP address and determines a first designated IP address and a second designated IP address which are mutually communicated, wherein the second IP address is a media surface IP address of the base station controller; and the base station controller informs the media gateway controller of the first designated IP address and the second designated IP address, so that the media gateway controller informs the media gateway of the first designated IP address and the second designated IP address. The method and the device for establishing the media surface have the advantages of improving the success rate for establishing and calling an A-port media surface, guaranteeing normal communication execution and avoiding the problem that the communication is influenced due to unavailable IP address or connection fault.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method for building up and device of medium face.
Background technology
In mobile communication network, because the IP carrying is convenient and low-cost, the IP carrying is substituting time division multiplexing (Time Division Multiplex and Multiplexer abbreviates TDM as) gradually, becomes the bearer types that each interface mainly uses.The A interface has been introduced the mechanism of IPization as one of main interface of mobile communication network in 48.008 agreements of 3GPP tissue.
Fig. 1 be in the mobile communication network of prior art with the network structure of A interface relevant portion, as shown in Figure 1, the network element that relates to comprises: portable terminal (Mobile Station, abbreviate MS as), base transceiver station (Base Transceiver Station, abbreviate BTS as), base station controller (Base Station Controller, abbreviate BSC as), media gateway (Media Gateway, abbreviate MG as) and Media Gateway Controller (Media Gateway Controller abbreviates MGC as).Wherein, the interface between MG and the BSC is the medium face portion of A interface, and the interface between MGC and the BSC is the signaling plane of A interface, and signaling plane is used for the relevant signaling of transport service, and the medium face is used for during business is carried out, medium stream informations such as transferring voice, video.In addition, communicate by wave point between MS and the BTS, the interface between BTS and the BSC is an Abis interface, and the interface between MG and the MGC is a Mc interface.
In the circuit domain call process, at first need to set up the A interface signaling face between MGC and the BSC, then according to type of service, application medium face.Fig. 2 is a flow chart of setting up process in the prior art based on the MG of IP bearer types and the A interface medium face portion between the BSC, as shown in Figure 2, may further comprise the steps:
Step S201, MGC send to MG and set up the terminal instruction, are used to apply for the terminal of IP type.
Step S202, MG are the terminal to apply resource, and the resource of application comprises medium face IP address and the port of MG; Afterwards, the medium face IP address of the MG side that MG will apply for and port are carried in the terminal responds instruction, return to MGC.
Step S203, MGC sends Assignment Command to BSC, wherein, carries medium face IP address and the port of MG in this Assignment Command.
Step S204, BSC handle above-mentioned Assignment Command, and Resources allocation, and the resource of distribution comprises medium face IP address and the port of BSC; Afterwards, return assignment to MGC and reply, wherein, carry medium face IP address and the port of the BSC of distribution during this assignment is replied.
Step S205, MGC is carried at medium face IP address and the port of BSC in the terminal modifications order, returns to MGW.
Step S206, MGW receive above-mentioned terminal modifications order, return terminal modifications to BSC and reply.
By flow process shown in Figure 2 as can be seen, BSC and MG need can set up being connected of medium face behind the switched-media face IP address and port respectively, that is to say and BSC and MG must know the other side's IP address and the foundation that port can be finished the medium face.When setting up the medium face, MG and BSC can provide an IP address respectively, are used for the foundation of medium face.
Under the situation that adopts multimedia face IP address, because a plurality of addresses are arranged, above-mentioned MG and BSC will respectively select an address respectively in the address list of this side, be used for this medium face and set up process.
Fig. 3 disposes the schematic diagram of a plurality of medium faces address respectively to MG and BSC in network design.As shown in Figure 3, can be connected in twos between the medium face address of the medium face address of MG and BSC.As shown in Figure 3, IP1 and IP2 are the medium face addresses of MG, IP-bsc1 and IP-bsc2 are the medium face addresses of BSC, wherein, IP1, IP2 are connected with IP-bsc1, IP-bsc2 by router, for example, ways of connecting can comprise that IP1 is connected with IP-bsc1, IP2 is connected with IP-bsc2, and ways of connecting also can be to connect in twos.When setting up A mouth medium face, MG can select IP1 or IP2 as local terminal medium face address according to certain ratio, returns to MGC; Then, MGC is carried at the address and sends to BSC in the Assignment Command, selects the medium face address of IP-bsc1 or IP-bsc2 and MG to be connected by BSC, and this method can increase the reliability of A mouth medium face by for MG and BSC distribute a plurality of medium face IP address.
But, because MG and BSC can't know in advance all whether the transmission between selected two IP addresses is normal, if the transmission that MG and BSC select is used to set up between two IP addresses of medium face (is for example broken down, route or circuit between two IP addresses break down), then MG and BSC can continue to use these two fail addresses to set up the medium face, thereby the medium face that causes call setup failure or calling to be set up can't transmit media signal, influences proper communication.
At to cause the medium face to be created as power low and then influence the problem of proper communication owing to carrying out joint detection between the IP address in the correlation technique, effective solution is not proposed as yet at present.
Summary of the invention
At to cause the medium face to be created as power low and then influence the problem of proper communication owing to carrying out joint detection between the IP address in the correlation technique, the present invention proposes a kind of method for building up and device of medium face, can effectively improve the success rate that the medium face is set up, guarantee proper communication.
Technical scheme of the present invention is achieved in that
A kind of method for building up of medium face comprises:
In the circuit domain call process, base station controller receives at least one the IP address from Media Gateway Controller, wherein, and the medium face IP address that a described IP address is a media gateway;
Described base station controller is tested the connectedness between at least one the 2nd IP address and described at least one IP address, determine the first assigned ip address and the second assigned ip address that communicate with each other, wherein, the medium face IP address that described the 2nd IP address is described base station controller, the described first assigned ip address belongs to described at least one IP address, and the described second assigned ip address belongs to described at least one the 2nd IP address;
Described base station controller is given described Media Gateway Controller with described first assigned ip address and the described second assigned ip address notification, so that described Media Gateway Controller is given described media gateway with described first assigned ip address and the described second assigned ip address notification.
Further, said method comprises:
Media gateway is given described Media Gateway Controller with described at least one IP address notification in advance.
Preferably, before base station controller reception at least one IP address from Media Gateway Controller, described method for building up further comprises:
Described Media Gateway Controller is given described base station controller by Assignment Command with described at least one IP address notification.
Wherein, the described base station controller connectedness of testing between at least one the 2nd IP address and described at least one IP address comprises:
For one the one IP address and one the 2nd IP address, described base station controller sends the Ping order according to the 2nd IP address, and carries an IP address and the 2nd IP address in described Ping order;
If described media gateway receives described Ping order, then return described Ping order, and in the described Ping order of returning, carry an IP address and the 2nd IP address according to an IP address of carrying in the described Ping order;
Receive at described base station controller under the situation of the described Ping order of returning, judge that an IP address and the 2nd IP address communicate with each other.
Preferably, described base station controller comprises to described Media Gateway Controller described first assigned ip address and the described second assigned ip address notification:
Described base station controller is given described Media Gateway Controller by the assignment acknowledgement command with described first assigned ip address and the described second assigned ip address notification.
Wherein, described method for building up further comprises: described media gateway discharges and the irrelevant resource in described first assigned ip address and the described second assigned ip address.
A kind of apparatus for establishing of medium face comprises:
Receiver module is used in the circuit domain call process, receives at least one the IP address from Media Gateway Controller, wherein, and the medium face IP address that a described IP address is a media gateway;
Test module, be used to test the connectedness between at least one the 2nd IP address and described at least one IP address, determine the first assigned ip address and the second assigned ip address that communicate with each other, wherein, the medium face IP address that described the 2nd IP address is described base station controller, the described first assigned ip address belongs to described at least one IP address, and the described second assigned ip address belongs to described at least one the 2nd IP address;
Notification module, be used for giving described Media Gateway Controller, so that described Media Gateway Controller is given described media gateway with described first assigned ip address and the described second assigned ip address notification with described first assigned ip address and the described second assigned ip address notification.
Wherein, for one the one IP address and one the 2nd IP address, described test module is used for sending the Ping order according to the 2nd IP address, and in described Ping order, carry an IP address and the 2nd IP address, described test module receive the Ping order of returning by described media gateway and the described Ping order returned in carry under the situation of an IP address and the 2nd IP address, judge that an IP address and the 2nd IP address communicate with each other.
Wherein, described at least one IP address is prenoticed to described receiver module by Assignment Command by described Media Gateway Controller; And described notification module specifically is used for giving described Media Gateway Controller by the assignment acknowledgement command with described first assigned ip address and the described second assigned ip address notification.
By means of technique scheme of the present invention, give BSC by MGC with one or more medium face IP address notifications of MG, make BSC to measure according to the IP address of these IP addresses and BSC itself, definite IP address that can communicate with each other, and then select the IP address to carry out the medium face according to measurement result and set up, thereby can improve face foundation of A mouth medium and calling ratio of success by measuring, guarantee the normal execution of communication, avoid unavailable or connection fault to influence the problem of communication owing to the IP address.
Description of drawings
Fig. 1 be in the mobile communication network of prior art with the interface related subnetwork structural representation of A;
Fig. 2 is a flow chart of setting up process in the prior art based on the MG of IP bearer types and the A interface medium face portion between the BSC;
Fig. 3 disposes the schematic diagram of a plurality of medium faces address respectively to MG and BSC in the correlation technique;
Fig. 4 is the flow chart according to the method for building up of the medium face of the embodiment of the invention;
Fig. 5 is the detailed process flow chart according to the method for building up of the medium face of the embodiment of the invention;
Fig. 6 is the structured flowchart according to the processing unit of transmitting of the embodiment of the invention.
Embodiment
At to cause the medium face to be created as power low and then influence the problem of proper communication owing to carrying out joint detection between the IP address in the correlation technique, the present invention proposes, give BSC by MGC with one or more medium face IP address notifications of MG, make BSC to measure according to the IP address of these IP addresses and BSC itself, definite IP address that can communicate with each other, and then select the IP address to carry out the medium face according to measurement result and set up, thereby can improve foundation of medium face and calling ratio of success by measuring, guarantee the normal execution of communication.
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail.
Fig. 4 is the flow chart according to the method for building up of the medium face of the embodiment of the invention, and as shown in Figure 4, this method comprises:
Step S401, in the circuit domain call process, BSC receives at least one the IP address from MGC, and wherein, an IP address is the medium face IP address of MG;
Step S403, BSC tests the connectedness between at least one the 2nd IP address and at least one the IP address, determine the first assigned ip address and the second assigned ip address that communicate with each other, wherein, the 2nd IP address is the medium face IP address of BSC, the first assigned ip address belongs at least one IP address, and the second assigned ip address belongs at least one the 2nd IP address;
Step S405, BSC gives MGC with the first assigned ip address and the second assigned ip address notification, so that MGC gives MG with the first assigned ip address and the second assigned ip address notification, after MG receives the second assigned ip address by MGC notice, at this moment, MG and BSC have all known the other side's medium face IP address, have promptly finished the foundation of medium faces, and both sides can carry out the transmission of data.
By means of technique scheme of the present invention, give BSC by MGC with one or more medium face IP address notifications of MG, make BSC to measure according to the IP address of these IP addresses and BSC itself, definite IP address that can communicate with each other, and then select the IP address to carry out the medium face according to measurement result and set up, thereby can improve face foundation of A mouth medium and calling ratio of success by measuring, guarantee the normal execution of communication, avoid unavailable or connection fault to influence the problem of communication owing to the IP address.
Wherein, BSC is prenoticed to MGC by MG from a plurality of IP addresses that MGC receives.
And, MGC can give BSC with at least one IP address notification by Assignment Command, receive for BSC, wherein, when notifying an IP address, can will be notified to BSC in the lump, preferably, can adopt the mode of tabulation to show an IP address and a corresponding port with an IP address corresponding port; BSC then can give MGC with the first assigned ip address and the second assigned ip address notification by the assignment acknowledgement command.
After MG learnt the selected first assigned ip address and the second assigned ip address, MG can discharge and the irrelevant resource in the first assigned ip address and the second assigned ip address, thereby avoids the unnecessary of resource to take.
And when testing, for one the one IP address and one the 2nd IP address, BSC can send Ping order (also can be called the Ping bag) according to the 2nd IP address, and carries an IP address and the 2nd IP address in the Ping order; If MG receives the Ping order, then return the Ping order, and in the Ping order of returning, carry an IP address and the 2nd IP address according to an IP address of carrying in the Ping order; Receive at BSC under the situation of the Ping order of returning, judge that an IP address and the 2nd IP address communicate with each other.
In actual applications, BSC can adopt the mode of mass-sending to send the Ping order, also can send the Ping order one by one, and, can set up fast if wish the medium face, then can BSC determines an a pair of IP address that communicates with each other and the 2nd IP address by test after, just stop to measure.In addition, test mode described herein only is an example, and according to demand, those skilled in the art can select other method of testing, and this paper enumerates no longer one by one.
With annexation shown in Figure 3 is example, IP1 and IP2 are equivalent to an above-mentioned IP address, IP-bsc1 and IP-bsc2 are equivalent to the 2nd above-mentioned IP address, suppose that the result that BSC carries out continuity testing is communicated with IP1 for IP-bsc1, IP-bsc2 is communicated with IP2, when selecting the first assigned ip address and the second assigned ip address, both can select IP1 as the first assigned ip address and select IP-bsc1 as the second assigned ip address, also can select IP2 as the first assigned ip address and select IP-bsc2 as the second assigned ip address, concrete definite method can adopt modes such as selections at random, if can many to the address that communicates with each other in the unique a pair of address of selection as the first assigned ip address and the second assigned ip address.When setting up the medium face, MG can select arbitrarily or based on certain strategy from IP1 and IP2, suppose that MG has selected IP1 (as the above-mentioned first assigned ip address), at this moment, MG can be notified to MGC with IP1, MGC can further be notified to BSC with IP1, BSC is right according to the address of preserving, determine that being positioned at another right IP address of same address with IP1 is IP-bsc1, therefore, BSC can select IP-bsc1 as the above-mentioned second assigned ip address, and IP-bsc1 is notified to MGC, by MGC IP-bsc1 is notified to MG, at this moment, MG and BSC can be known the IP address that the other side adopts, and being connected between IP-bsc1 and the IP1 is normal, therefore can successfully set up the medium face, and, MG can also in time discharge and the irrelevant resource in the first assigned ip address (IP1) and the second assigned ip address (IP-bsc1), thereby optimizes the utilization of resources, avoids unnecessary resource occupation.
Above-mentioned when setting up the medium face, BSC selects arbitrarily or based on certain strategy from the IP address centering that can be communicated with, and particularly, BSC can select based on one of following strategy:
(1) load balancing strategy
BSC is according to the load sharing strategy of IPmg tabulation (IP address list of MG) and IPbsc tabulation (IP address list of BSC), select Ipmg (the first assigned ip address mentioned above) and IPbsc (the second assigned ip address mentioned above), and IPmg and IPbsc can be communicated with.Such as in the IPmg tabulation three address: IPmg-1, IPmg-2 and IPmg-3 being arranged, in the Ipbsc tabulation wherein IPmg-1 of 2 address: IPbsc-1 and IPbsc-2. is arranged, IPmg-2, the load proportion of IPmg-3 are 1: 1: 2, and the load proportion of IPbsc-1 and IPbsc-2 is 1: 1.Then BSC the selection frequency of address in the IPmg tabulation was satisfied 1: 1: 2, and the selection frequency of address in the IPbsc tabulation then satisfied 1: 1 as far as possible when selecting IPmg and IPbsc.
(2) priority policy
Continue above-mentioned example, such as requiring the preferential IPmg-3 of selection in the IPmg tabulation, and require the preferred IPbsc-2 of selection in the IPbsc tabulation, then under the prerequisite that IPmg-3 and IPbsc-2 can be communicated with, BSC should select IPmg-3 and IPbsc-2 as far as possible.
(3) time-based selection strategy
In the IP of predefined time period and interface address relationship table, search the pairing IP of current slot address.Particularly, can between 0 o'clock to 8 o'clock of every day, require in the IPmg tabulation, to select IPmg-1, select IPmg-2 between the 8-16 point, select IPmg-3 between the 16-24 point.Simultaneously, can between the 0-12 point, select the IPbsc-1 in the IPbsc tabulation, select the IPbsc-2 in the IPbsc tabulation between the 12-24 point.Like this, 6 points in the morning, the selected IP of BSC address is to being IPmg-1 and IPbsc-1.
In actual application, above several selection strategies can be carried out combination in any, with the more rational first assigned ip address choice strategy of realization, and, can adopt different selection strategies as the case may be in different time sections.For example, between 8 o'clock to 20 o'clock of every day, adopt strategy based on priority, at 20 of every day to the strategy that adopts between 8 of next day based on load balancing.
Fig. 5 is the signaling process figure according to the method for building up of the medium face of the embodiment of the invention.As shown in Figure 5, when setting up the medium face, specifically comprise following processing:
The A mouthpiece that step S501, MGC begin to be established to BSC carries, and sends and sets up station command to MG, applies for the terminal of IP type;
Step S502, MG if MG has a plurality of medium face IP address, then are ports of each IP application IP addresses in local terminal application resource, return and set up terminal responds, by setting up terminal responds the tabulation of local terminal medium face IP address and port are returned to MGC;
Step S503, MGC send Assignment Command to BSC, carry the medium face IP address of MG and the tabulation of port in this order;
Step S504, after BSC receives Assignment Command, connection between the IP address of the IP address of local terminal and MG is detected, select attachable two IP addresses as this professional medium face IP address, and in replying, assignment returns to MGC, particularly, BSC can send ping order (Ping bag) to above-mentioned address list and determine break-make situation between the medium face IP address of the medium face IP address of local terminal and MG, so that the MG medium face IP address that selection can be connected each other (promptly, the first above-mentioned assigned ip address) and local terminal medium face IP address (that is, above-mentioned the second assigned ip address).
Step S505, BSC is carried at assignment with the local terminal medium face IP address selected and MG medium face IP address and returns to MGC in replying.
Step S506, MGC send and revise station command, give MG with the medium face IP address of BSC and the MG medium face IP address notification of port and BSC selection, so that MG and BSC can be known the other side's medium face IP address mutually.MG can discharge other IP addresses and relevant resource after determining the medium face IP address of this service needed use.
Step S507, MG returns the modification terminal responds to MGC.
By above-mentioned processing, can select rational IP address to carry out the medium face according to measurement result sets up, A mouth medium face is set up and calling ratio of success thereby can effectively improve, and guarantees the normal execution of communication, avoids owing to the IP address unavailable or connection fault to influence the problem of communication; And by processing shown in Figure 5 as can be seen, the method for building up of the medium face that present embodiment provides can be set up flow process with medium face of the prior art well and mutually combine, and need not to carry out bigger change, and implementation procedure is comparatively simple; And, by timely release IP resource, can avoid the unnecessary of resource to take, reach the purpose of optimizing the utilization of resources.
Fig. 6 is the structured flowchart according to the processing unit of transmitting of the embodiment of the invention, and as shown in Figure 6, this apparatus for establishing comprises:
And at least one IP address is prenoticed to receiver module by Assignment Command by MGC; And notification module 63 specifically is used for giving MGC by the assignment acknowledgement command with the first assigned ip address and the second assigned ip address notification.
Alternatively, for one the one IP address and one the 2nd IP address, test module 62 is used for sending the Ping order according to the 2nd IP address, and in the Ping order, carry an IP address and the 2nd IP address, receive in Ping order of returning by MG and the Ping that the returns order at test module 62 and to carry under the situation of an IP address and the 2nd IP address, judge that an IP address and the 2nd IP address communicate with each other.
In actual applications, test module 62 can adopt the mode of mass-sending to send the Ping order, also can send the Ping order one by one, and, can set up fast if wish the medium face, then can test module 62 is determined an a pair of IP address that communicates with each other and the 2nd IP address by test after, just stop to measure.
In addition, test mode described herein only is an example, and according to demand, those skilled in the art can select other method of testing, and this paper enumerates no longer one by one.
And, can be arranged among the BSC according to each module in the said apparatus of present embodiment, also can be independent of BSC and be provided with and communicate, part of module can also be arranged among the BSC with BSC, and another part is independent of the BSC setting, and design this paper enumerates no longer one by one particularly.
The processing that the BSC of this device described in equally can manner of execution embodiment carries out, therefore, this device can cooperate execution graph 4 and processing shown in Figure 5 with MG and MGC equally, and reaches similar effects, be described before the concrete processing procedure, no longer repeat here.
In sum, by means of technique scheme of the present invention, can select rational IP address to carry out the medium face according to measurement result sets up, thereby can effectively improve A mouth medium face sets up and calling ratio of success, guarantee the normal execution of communication, avoid unavailable or connection fault to influence the problem of communication owing to the IP address; And medium face provided by the invention is set up scheme and can be set up flow process with medium face of the prior art well and mutually combine, and need not to carry out bigger change, and implementation procedure is comparatively simple; And, by timely release IP resource, can avoid the unnecessary of resource to take, reach the purpose of optimizing the utilization of resources.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the method for building up of a medium face is characterized in that, comprising:
In the circuit domain call process, base station controller receives at least one the IP address from Media Gateway Controller, wherein, and the medium face IP address that a described IP address is a media gateway;
Described base station controller is tested the connectedness between at least one the 2nd IP address and described at least one IP address, determine the first assigned ip address and the second assigned ip address that communicate with each other, wherein, the medium face IP address that described the 2nd IP address is described base station controller, the described first assigned ip address belongs to described at least one IP address, and the described second assigned ip address belongs to described at least one the 2nd IP address;
Described base station controller is given described Media Gateway Controller with described first assigned ip address and the described second assigned ip address notification, so that described Media Gateway Controller is given described media gateway with described first assigned ip address and the described second assigned ip address notification.
2. method for building up according to claim 1 is characterized in that, further comprises:
Media gateway is given described Media Gateway Controller with described at least one IP address notification in advance.
3. method for building up according to claim 1 is characterized in that, before base station controller reception at least one IP address from Media Gateway Controller, described method for building up further comprises:
Described Media Gateway Controller is given described base station controller by Assignment Command with described at least one IP address notification.
4. method for building up according to claim 1 is characterized in that, the connectedness that described base station controller is tested between at least one the 2nd IP address and described at least one IP address comprises:
For one the one IP address and one the 2nd IP address, described base station controller sends the Ping order according to the 2nd IP address, and carries an IP address and the 2nd IP address in described Ping order;
If described media gateway receives described Ping order, then return described Ping order, and in the described Ping order of returning, carry an IP address and the 2nd IP address according to an IP address of carrying in the described Ping order;
Receive at described base station controller under the situation of the described Ping order of returning, judge that an IP address and the 2nd IP address communicate with each other.
5. method for building up according to claim 1 is characterized in that, described base station controller comprises to described Media Gateway Controller described first assigned ip address and the described second assigned ip address notification:
Described base station controller is given described Media Gateway Controller by the assignment acknowledgement command with described first assigned ip address and the described second assigned ip address notification.
6. method for building up according to claim 1 is characterized in that, described method for building up further comprises: described media gateway discharges and the irrelevant resource in described first assigned ip address and the described second assigned ip address.
7. the apparatus for establishing of a medium face is characterized in that, comprising:
Receiver module is used in the circuit domain call process, receives at least one the IP address from Media Gateway Controller, wherein, and the medium face IP address that a described IP address is a media gateway;
Test module, be used to test the connectedness between at least one the 2nd IP address and described at least one IP address, determine the first assigned ip address and the second assigned ip address that communicate with each other, wherein, the medium face IP address that described the 2nd IP address is described base station controller, the described first assigned ip address belongs to described at least one IP address, and the described second assigned ip address belongs to described at least one the 2nd IP address;
Notification module, be used for giving described Media Gateway Controller, so that described Media Gateway Controller is given described media gateway with described first assigned ip address and the described second assigned ip address notification with described first assigned ip address and the described second assigned ip address notification.
8. apparatus for establishing according to claim 7, it is characterized in that, for one the one IP address and one the 2nd IP address, described test module is used for sending the Ping order according to the 2nd IP address, and in described Ping order, carry an IP address and the 2nd IP address, described test module receive the Ping order of returning by described media gateway and the described Ping order returned in carry under the situation of an IP address and the 2nd IP address, judge that an IP address and the 2nd IP address communicate with each other.
9. apparatus for establishing according to claim 7 is characterized in that, described at least one IP address is prenoticed to described receiver module by Assignment Command by described Media Gateway Controller; And described notification module specifically is used for giving described Media Gateway Controller by the assignment acknowledgement command with described first assigned ip address and the described second assigned ip address notification.
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| WO2013079019A1 (en) * | 2011-11-30 | 2013-06-06 | 华为技术有限公司 | Communication method, base station, base station controller, and mobile switching center |
| CN108616908A (en) * | 2016-12-29 | 2018-10-02 | 中国移动通信集团浙江有限公司 | A kind of network system and the data transferring method based on the network system |
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