CN101541096A - A interface IP-based local exchange method and equipment thereof - Google Patents
A interface IP-based local exchange method and equipment thereof Download PDFInfo
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Abstract
The invention discloses an A interface IP-based local exchange method. The method comprises the following steps that: when a calling user and a called user belongs to the same base station controller, whether the calling user and the called user belongs to the same base station is judged; if yes, a route list is established, a next hop address is set to be a mobile station to which the called user belongs, and the calling user and the called user exchange data in the same base station according to the established route list; and if not, the route list is established, the next hop address is set to be the base station to which the called user belongs, and the calling user and the called user exchange data in the same base station controller according to the established route list. By adopting the method and the equipment, the A interface IP-based local exchange mechanism can be achieved.
Description
Technical field
The present invention relates to communication technical field, relate in particular to local exchange method and equipment after the A interface IPization.
Background technology
Local exchange (Local switch) is a kind of gsm system (Global System for MobileCommunications that is applied to, global system for mobile communications) in, the exchanging mechanism that adopts TDM (Time Division Multiple, time division multiplexing) mode to transmit.Belong at communicating pair under the situation of a BTS (BaseTransceiver Station, base station) or BSC (Base Station Controller, base station controller), data only exchange at this BTS or BSC inside, and signaling is gone to core net.This local exchanged form can be saved corresponding transfer resource.
Local switch system comprises the local exchange of two kinds of mode: BSC, the local exchange of BTS.
Fig. 1 takies schematic diagram for the local switched call circuit of BSC, as shown in the figure, carries out in BSC inside under the situation of local exchange, and BSC will realize the loopback of calling and called user exchange resource automatically from the most close calling and called user's of link search BTS node at this node.
Fig. 2 takies schematic diagram for the local switched call circuit of BTS, and as seen from the figure, this locality of BTS inside is exchanged for a kind of special case of BSC inside local exchange, only carries out loopback in BTS inside.
Ater Interface among Fig. 1, Fig. 2 is meant BSC and TC (Transcoder, codec) interface between, Abis interface is meant the interface between BTS and the BSC, in general, TC can be integrated among the BSC, unified RAN (Radio Access Network, the wireless access network) equipment that forms, RAN equipment and core net (Core Network, CN) interface between is called the A interface; Also can delete TC among the figure, dotted line is connected in the A interface, after local exchange was enabled in expression, the A interface is occupied bandwidth no longer.By Fig. 1, Fig. 2 as seen,, then voice can be carried out loopback to BTS, on the interface board of A interface, core net be realized empty loopback simultaneously in the BSC side if BSC has started local exchange.Empty loopback herein is meant that on BSC side A interface single plate the signal that the A interface circuit that conversation is taken receives is left intact, and at transmit port, sends idle frame, so that core net can holding circuit.
For supporting local switch system, the interface (A interface) between BSC and the MSC (Mobile Service Switch Center, mobile services switching centre) adopts the TDM mode to transmit at present.The inventor by analysis, there is the technical need of carrying out local exchange after the A interface IPization in discovery, and after A interface IPization, the signaling of A interface and data all will be carried on the IP network, signaling plane and the transformat of data surface and the transmission means that transport module all can not be applicable to IPization in the TDM transmission means of existing local switch system, become the IP bag of variable length etc. by original isometric bag as transmission package, therefore, after A interface IPization, will be no longer suitable based on the local switch system of TDM transmission means.
Summary of the invention
The embodiment of the invention provides the local exchange method after a kind of A interface IPization, and in order to the local switch system after the realization A interface IPization, this method comprises:
When calling subscriber and called subscriber belong to same base station controller, judge whether calling subscriber and called subscriber belong to same base station;
If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station;
Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber.
The embodiment of the invention also provides the method for interchanging data after a kind of A interface IPization, and in order to the data exchange mechanism after the realization A interface IPization, this method comprises:
Judge whether calling subscriber and called subscriber belong to same base station controller;
If calling subscriber and called subscriber belong to same base station controller, judge then whether calling subscriber and called subscriber belong to same base station; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber;
If the calling subscriber belongs to different base station controllers with the called subscriber, then setting up routing table and next hop address is set is mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
The embodiment of the invention also provides a kind of base station controller, and in order to the local switch system after the realization A interface IPization, this base station controller comprises:
Judge module is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller;
The first via is by being provided with module, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage;
First data exchange module is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module is set up is set in same base station;
Secondary route is provided with module, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set;
Second data exchange module is used for according to secondary route the routing table that module is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller.
The embodiment of the invention also provides a kind of base station controller, and in order to the data exchange mechanism after the realization A interface IPization, this base station controller comprises:
First judge module is used to judge whether calling subscriber and called subscriber belong to same base station controller;
Second judge module is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller;
The first via is by being provided with module, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage;
First data exchange module is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module is set up is set in same base station;
Secondary route is provided with module, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set;
Second data exchange module is used for according to secondary route the routing table that module is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller.
Third Road is used for when calling subscriber and called subscriber belong to different base station controllers by module is set, and setting up routing table and next hop address is set is mobile services switching centre;
The 3rd data exchange module is used for according to Third Road by the routing table that module is set up is set, and carries out exchanges data between calling subscriber and the called subscriber through core network.
The embodiment of the invention also provides a kind of communication system, and in order to the local switch system after the realization A interface IPization, this communication system comprises:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Base station controller is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber.
The embodiment of the invention also provides a kind of communication system, and in order to the data exchange mechanism after the realization A interface IPization, this communication system comprises:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Mobile services switching centre is used for carrying out exchanges data between calling subscriber and the called subscriber at core network:
Base station controller is used for:
Judge whether calling subscriber and called subscriber belong to same base station controller;
If calling subscriber and called subscriber belong to same base station controller, judge then whether calling subscriber and called subscriber belong to same base station; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber;
If the calling subscriber belongs to different base station controllers with the called subscriber, then setting up routing table and next hop address is set is mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
The embodiment of the invention also provides the method for interchanging data in a kind of IP network, and in order to realize the data exchange mechanism in the IP network, this method comprises:
When calling subscriber and called subscriber belong to the consolidated network node, set up routing table and next hop address is set and be the called subscriber;
According to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber at described consolidated network intranodal.
In the embodiment of the invention, after the A interface IPization, when calling subscriber and called subscriber belong to same base station controller, judge whether calling subscriber and called subscriber belong to same base station; If, next hop address is set when setting up routing table is called subscriber place travelling carriage, according to the routing table of setting up, in same base station, carry out the exchanges data between calling subscriber and the called subscriber; Otherwise, the base station of next hop address for called subscriber's ownership is set when setting up routing table, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber, thereby realized the local switch system after the A interface IPization, can save transfer resource in A interface IPization back, comprise interface board quantity, TC resource etc.
Description of drawings
Fig. 1 takies schematic diagram for the local switched call circuit of BSC in the background technology;
Fig. 2 takies schematic diagram for the local switched call circuit of BTS in the background technology;
Fig. 3 is the exchange of this locality after an A interface IPization flow chart in the embodiment of the invention;
Fig. 4 is the local exchange of the BSC after an A interface IPization schematic diagram in the embodiment of the invention;
Fig. 5 is the local exchange of the BTS after an A interface IPization schematic diagram in the embodiment of the invention;
Fig. 6 is the flow chart of an instantiation of the local exchange in A interface IPization back in the embodiment of the invention;
Fig. 7 is the protocol stack schematic diagram of the local exchange in A interface IPization back in the embodiment of the invention;
Fig. 8, Fig. 9 are the structural representation of base station controller in the embodiment of the invention.
Embodiment
Below in conjunction with Figure of description the embodiment of the invention is elaborated.
As shown in Figure 3, in the embodiment of the invention, this locality exchange flow process after the A interface IPization is as follows:
Step 31, when calling subscriber and called subscriber belong to same base station controller, judge whether calling subscriber and called subscriber belong to same base station, if then execution in step 32; Otherwise execution in step 33.
Step 32, set up routing table and next hop address is set for called subscriber place travelling carriage,, in same base station, carry out the exchanges data between calling subscriber and the called subscriber according to the routing table of setting up.
Step 33, set up routing table and the base station of next hop address for called subscriber ownership is set,, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber according to the routing table of setting up.
Among the embodiment, when carrying out exchanges data, the data encapsulation that needs will be to be exchanged exchanges for the IP packet, during encapsulation, needs be provided with according to the routing table of setting up the source address and the destination address of IP packet.If next hop address is a called subscriber place travelling carriage in the routing table, then the source address of IP packet and destination address belong to same base station; If next hop address is the base station of called subscriber's ownership in the routing table, then the source address of IP packet and destination address belong to same base station controller subordinate's different base station; If next hop address is a mobile services switching centre in the routing table, then the source address of IP packet belongs to different base station controllers with destination address.
Among the embodiment, the calling subscriber or the called subscriber switches or during calling subscriber's terminated call, can stop exchanges data, the routing table that deletion is set up.
In the embodiment of the invention, in the local switch system after the A interface IPization, user signaling and data flow such as Fig. 4, shown in Figure 5.Wherein, Fig. 4 is the local exchange of the BSC after an A interface IPization schematic diagram in the embodiment of the invention, as shown in the figure, as calling subscriber MS (Mobile Station, travelling carriage) makes a call, BSC will judge that whether calling subscriber and called subscriber belong to same BSC, if calling subscriber and called subscriber belong to same BSC, then start local switch system; Further, if calling subscriber and called subscriber belong to same BSC, and belong to different BTS, then carry out loop back processing being in the BSC side, set up routing table and the BTS of next hop address for called subscriber's ownership is set, data (comprising letter symbol data, speech data, graphic image data, video data etc.) are carried out local exchange; After calling finishes, the routing table that deletion has been set up.
Fig. 5 is the local exchange of the BTS after an A interface IPization schematic diagram in the embodiment of the invention, as shown in the figure, when calling subscriber MS makes a call, BSC will judge whether calling subscriber and called subscriber belong to same BSC, if calling subscriber and called subscriber belong to same BSC, then start local switch system; Further, if calling subscriber and called subscriber belong to same BSC, and belong to same BTS, then carry out loop back processing being in the BTS side, setting up routing table and next hop address is set is called subscriber place MS, and data (comprising letter symbol data, speech data, graphic image data, video data etc.) are carried out local exchange; After calling finishes, the routing table that deletion has been set up.
Among the embodiment, in the data exchange process after realizing A interface IPization, judge whether calling subscriber and called subscriber belong to same base station controller earlier; If calling subscriber and called subscriber belong to same base station controller, then can be by flow processing shown in Figure 3; When if the calling subscriber belongs to different base station controllers with the called subscriber, then can set up routing table and next hop address is set is mobile services switching centre, follow-up according to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber through core network.
As shown in Figure 6, in the instantiation, the data exchange processing flow process after the A interface IPization is as follows:
Step 61, judge whether calling subscriber and called subscriber belong to same BSC, if then start local function of exchange, execution in step 62; Otherwise execution in step 69.
Whether step 62, judgement belong to same BTS with calling subscriber and called subscriber, if then execution in step 63; Otherwise execution in step 66.
Step 63, the address of setting up routing table and next jumping being set are called subscriber place MS.
Step 64, in same base station, carry out calling subscriber and called subscriber's local data exchange.Wherein, according to the routing table of setting up, the user data that belongs to same BTS is carried out IP encapsulation (source address and the destination address of IP exchange belong to same BTS).
Step 65, the calling subscriber or the called subscriber switches or calling subscriber's terminated call etc., stop local exchange, the routing table that deletion is set up.
Step 66, the address setting up routing table and next jumping is set are the BTS of called subscriber's ownership.
Step 67, in same base station controller, carry out calling subscriber and called subscriber's local data exchange.Wherein, according to the routing table of setting up, the user data that belongs to same BSC is carried out IP encapsulation (source address of IP exchange and destination address belong to the different B TS under the same BSC).
Step 68, the calling subscriber or the called subscriber switches or calling subscriber's terminated call etc., stop local exchange, the routing table that deletion is set up.
Step 69, to set up routing table and next hop address is set be mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
After the A interface IPization, BSSAP (Base Station System application Part, Base Station System Application Part) signaling is carried on the IP agreement by SIGTRAN (Signaling Transport, signaling transmission) agreement, and concrete protocol stack as shown in Figure 7.After this locality exchange started, signaling still kept and being connected of core net, with similar under the TDM transmission means.
Based on same inventive concept, the embodiment of the invention also provides a kind of base station controller, and its structure comprises as shown in Figure 8: judge module 81, be used for when calling subscriber and called subscriber belong to same base station controller, judging whether calling subscriber and called subscriber belong to same base station; The first via is by being provided with module 82, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage; First data exchange module 83 is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module 82 is set up is set in same base station; Secondary route is provided with module 84, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set; Second data exchange module 85 is used for according to secondary route the routing table that module 84 is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller.
Among the embodiment, base station controller shown in Figure 8 can also comprise: package module, and being used for data encapsulation to be exchanged is the IP packet; Module is set, is used for being provided with the source address and the destination address of IP packet according to the routing table of setting up.
Among the embodiment, base station controller shown in Figure 8 can also comprise: exchanges data stops module, is used for the calling subscriber or the called subscriber switches or during calling subscriber's terminated call, stop exchanges data, the routing table that deletion is set up.
Among the embodiment, base station controller shown in Figure 8 can also comprise: the signaling Switching Module is used for exchanging through the signaling that core network carries out between calling subscriber and the called subscriber.
Based on same inventive concept, the embodiment of the invention also provides a kind of base station controller, and its structure comprises as shown in Figure 9:
The first via is by being provided with module 93, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage;
First data exchange module 94 is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module 93 is set up is set in same base station;
Secondary route is provided with module 95, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set;
Second data exchange module 96 is used for according to secondary route the routing table that module 95 is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller;
Third Road is used for when calling subscriber and called subscriber belong to different base station controllers by module 97 is set, and setting up routing table and next hop address is set is mobile services switching centre;
The 3rd data exchange module 98 is used for according to Third Road by the routing table that module 97 is set up is set, and carries out exchanges data between calling subscriber and the called subscriber through core network.
Based on same inventive concept, the embodiment of the invention also provides a kind of communication system, comprising:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Base station controller is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber.
Based on same inventive concept, the embodiment of the invention also provides a kind of communication system, comprising:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Mobile services switching centre is used for carrying out exchanges data between calling subscriber and the called subscriber at core network:
Base station controller is used for:
Judge whether calling subscriber and called subscriber belong to same base station controller;
If calling subscriber and called subscriber belong to same base station controller, judge then whether calling subscriber and called subscriber belong to same base station; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber;
If the calling subscriber belongs to different base station controllers with the called subscriber, then setting up routing table and next hop address is set is mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
The foregoing description method is not limited to the data exchange process after the A interface IPization, can also be applied in other IP network, during enforcement, can be when calling subscriber and called subscriber belong to the consolidated network node, set up routing table and next hop address is set and be the called subscriber; Follow-up according to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber at this consolidated network intranodal.
Among the embodiment, when calling subscriber and called subscriber belong to different network nodes, can determine successively whether calling subscriber and called subscriber belong to same upper layer network node; When definite calling subscriber and called subscriber belong to same upper layer network node, set up routing table and the network node of next hop address for called subscriber's ownership in next layer network node of this layer network node is set; Follow-up can be according to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber at the same upper layer network intranodal of calling subscriber and called subscriber's ownership.Certainly, when the upper layer network node of definite calling subscriber and the common ownership of called subscriber, also needn't strictness press layer processing successively in the enforcement, promptly can seek calling subscriber and the common upper layer network node that belongs to of called subscriber by skip floor.
Certainly, when stating exchanges data on the implementation, data encapsulation to be exchanged can be exchanged for the IP packet, wherein, the source address and the destination address of IP packet is set according to the routing table of setting up.
In the embodiment of the invention, after the A interface IPization, when calling subscriber and called subscriber belong to same base station controller, judge whether calling subscriber and called subscriber belong to same base station; If, next hop address is set when setting up routing table is called subscriber place travelling carriage, according to the routing table of setting up, in same base station, carry out the exchanges data between calling subscriber and the called subscriber; Otherwise, the base station of next hop address for called subscriber's ownership is set when setting up routing table, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber, thereby realized the local switch system after the A interface IPization, can save transfer resource in A interface IPization back, comprise interface board quantity, TC resource etc.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1, the local exchange method after a kind of A interface IPization is characterized in that this method comprises:
When calling subscriber and called subscriber belong to same base station controller, judge whether calling subscriber and called subscriber belong to same base station;
If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station;
Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber.
2, the method for claim 1 is characterized in that, described exchanges data comprises:
Data encapsulation to be exchanged is exchanged for the IP packet, wherein, the source address and the destination address of IP packet is set according to the routing table of setting up.
3, the method for claim 1 is characterized in that, this method further comprises:
The calling subscriber or the called subscriber switches or during calling subscriber's terminated call, stop exchanges data, the routing table that deletion is set up.
4, the method for claim 1 is characterized in that, this method further comprises: the signaling of carrying out between calling subscriber and the called subscriber through core network exchanges.
5, the method for interchanging data after a kind of A interface IPization is characterized in that this method comprises:
Judge whether calling subscriber and called subscriber belong to same base station controller;
If calling subscriber and called subscriber belong to same base station controller, judge then whether calling subscriber and called subscriber belong to same base station; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber;
If the calling subscriber belongs to different base station controllers with the called subscriber, then setting up routing table and next hop address is set is mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
6, a kind of base station controller is characterized in that, comprising:
Judge module is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller;
The first via is by being provided with module, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage;
First data exchange module is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module is set up is set in same base station;
Secondary route is provided with module, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set;
Second data exchange module is used for according to secondary route the routing table that module is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller.
7, base station controller as claimed in claim 6 is characterized in that, also comprises:
Package module, being used for data encapsulation to be exchanged is the IP packet;
Module is set, is used for being provided with the source address and the destination address of IP packet according to the routing table of setting up.
8, base station controller as claimed in claim 6 is characterized in that, also comprises:
Exchanges data stops module, is used for the calling subscriber or the called subscriber switches or during calling subscriber's terminated call, stop exchanges data, the routing table that deletion is set up.
9, base station controller as claimed in claim 6 is characterized in that, also comprises:
The signaling Switching Module is used for exchanging through the signaling that core network carries out between calling subscriber and the called subscriber.
10, a kind of base station controller is characterized in that, comprising:
First judge module is used to judge whether calling subscriber and called subscriber belong to same base station controller;
Second judge module is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller;
The first via is by being provided with module, is used for when calling subscriber and called subscriber belong to same base station, sets up routing table and next hop address is set to be called subscriber place travelling carriage;
First data exchange module is used for according to the first via carrying out the exchanges data between calling subscriber and the called subscriber by the routing table that module is set up is set in same base station;
Secondary route is provided with module, is used for when calling subscriber and called subscriber belong to different base stations, sets up routing table and the base station of next hop address for called subscriber's ownership is set;
Second data exchange module is used for according to secondary route the routing table that module is set up being set, and carries out the exchanges data between calling subscriber and the called subscriber in same base station controller;
Third Road is used for when calling subscriber and called subscriber belong to different base station controllers by module is set, and setting up routing table and next hop address is set is mobile services switching centre;
The 3rd data exchange module is used for according to Third Road by the routing table that module is set up is set, and carries out exchanges data between calling subscriber and the called subscriber through core network.
11, a kind of communication system is characterized in that, comprising:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Base station controller is used for judging whether calling subscriber and called subscriber belong to same base station when calling subscriber and called subscriber belong to same base station controller; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber.
12, a kind of communication system is characterized in that, comprising:
Travelling carriage is used to receive and dispatch user data;
The base station is used to carry out the exchanges data between calling subscriber and the called subscriber;
Mobile services switching centre is used for carrying out exchanges data between calling subscriber and the called subscriber at core network:
Base station controller is used for:
Judge whether calling subscriber and called subscriber belong to same base station controller;
If calling subscriber and called subscriber belong to same base station controller, judge then whether calling subscriber and called subscriber belong to same base station; If setting up routing table and next hop address is set is called subscriber place travelling carriage, according to the routing table of setting up, carries out the exchanges data between calling subscriber and the called subscriber in same base station; Otherwise, set up routing table and the base station of next hop address for called subscriber's ownership is set, according to the routing table of setting up, in same base station controller, carry out the exchanges data between calling subscriber and the called subscriber;
If the calling subscriber belongs to different base station controllers with the called subscriber, then setting up routing table and next hop address is set is mobile services switching centre, according to the routing table of setting up, carries out exchanges data between calling subscriber and the called subscriber through core network.
13, the method for interchanging data in a kind of IP network is characterized in that, this method comprises:
When calling subscriber and called subscriber belong to the consolidated network node, set up routing table and next hop address is set and be the called subscriber;
According to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber at described consolidated network intranodal.
14, method as claimed in claim 13 is characterized in that, this method further comprises:
When calling subscriber and called subscriber belong to different network nodes, determine successively whether calling subscriber and called subscriber belong to same upper layer network node;
When definite calling subscriber and called subscriber belong to same upper layer network node, set up routing table and the network node of next hop address for called subscriber's ownership in next layer network node of this layer network node is set;
According to the routing table of setting up, carry out exchanges data between calling subscriber and the called subscriber at the same upper layer network intranodal of calling subscriber and called subscriber's ownership.
15, as claim 13 or 14 described methods, it is characterized in that described exchanges data comprises:
Data encapsulation to be exchanged is exchanged for the IP packet, wherein, the source address and the destination address of IP packet is set according to the routing table of setting up.
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