CN111278074B - Switching correlation method and system for mobile communication under 2G and 3G network modes - Google Patents
Switching correlation method and system for mobile communication under 2G and 3G network modes Download PDFInfo
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- CN111278074B CN111278074B CN202010069536.4A CN202010069536A CN111278074B CN 111278074 B CN111278074 B CN 111278074B CN 202010069536 A CN202010069536 A CN 202010069536A CN 111278074 B CN111278074 B CN 111278074B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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Abstract
The invention discloses a switching correlation method and a system for mobile communication under 2G and 3G network modes, and provides a method for correlating signaling before and after switching when a mobile user is switched in the communication process under the 2G and 3G network modes. A mobile user switches a call on a BSC/RNC side due to position updating, signal fluctuation and the like under 2G and 3G network modes, so that a call record is divided into a plurality of segmented call signaling.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a method and a system for switching and associating mobile calls in 2G and 3G network modes.
Background
Conversation is the most frequently used communication method for people. The richness of network systems also leads to the increase of complexity of mobile communication signaling, meanwhile, Volte under 4G network systems is not popularized internationally, especially in countries such as yafela, and mobile communication is often carried out under 2G and 3G network systems.
The transmission of mobile calls in the core network in the 2G and 3G network systems is complex and is divided into intra-office calls, inter-network calls, and the like, so that all mobile calls can be acquired only in the interface between the core network and the radio access network. A mobile call in a 2G Network system enters a core Network through a BSC (base Station Controller) and an MSC (mobile switching Center), and a mobile call in a 3G Network system enters the core Network through an RNC (Radio Network Controller) and an MSC, so that mobile call signaling collection points in the 2G and 3G Network systems are an a interface between the BSC and the MSC and an Iu-cs interface between the RNC and the MSC, but the association of call switching-in and switching-out of a single-user multi-interface cannot be realized according to the original signaling association.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a switching association method of mobile communication under 2G and 3G network modes, which can solve the problem that a signaling message is incomplete when a user switches the network modes, and also provides a switching association system of the mobile communication under the 2G and 3G network modes.
The technical scheme is as follows: the invention relates to a switching correlation method of mobile communication under 2G and 3G network modes, which comprises the following steps:
(1) setting a call switching type of user equipment, and acquiring an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC under a 2G network mode and an A interface signaling message of a switching-in side between a target base station controller BSC and the mobile switching center MSC;
acquiring lu-CS interface signaling messages of a call switching-out side between a source Radio Network Controller (RNC) and a Mobile Switching Center (MSC) and lu-CS interface signaling messages of a switching-in side between a target Radio Network Controller (RNC) and the Mobile Switching Center (MSC) under a 3G network mode;
(2) switching network systems, and judging the type of call switching;
(3) respectively analyzing interface signaling messages of a call switching side of a source base station controller BSC or a radio network controller RNC according to a network system switching type, acquiring first associated information, taking the first associated information as a key value, and writing corresponding call record information into a memory;
analyzing an interface signaling message of a cut-in side of a target base station controller BSC or a radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory;
(4) and (4) if the call switching continues to occur in the call, repeating the steps (2) and (3) until the call is ended, and outputting a complete call bill.
Further, comprising:
in the step (1), the signaling message of the interface A and the signaling message of the lu-CS interface are both signaling messages of the mobile switching center MSC side, and other signaling messages are filtered.
Further, comprising:
in the step (1), the types of call switching include switching to a 2G network standard under a 3G network standard, switching between base station controllers BSC under the 2G network standard, switching to the 3G network standard under the 2G network standard, and switching between radio network controllers RNC under the 3G network standard.
Further, comprising:
in the step (2), the type of call switching and the type of the destination location are determined, if the type of the destination location is CGI, the call switching is performed to a 2G network system, and if the type of the location is SAI, the call switching is performed to a 3G network system.
Further, comprising:
if the conversation of the user equipment is switched between BSCs under the 2G network system, the key value is the target position and the reference number, and if the conversation is switched between RNCs under the 3G network system, the key value is the international mobile subscriber identity.
On the other hand, the invention also provides a switching correlation system of mobile communication under 2G and 3G network modes, which comprises the following steps:
the type setting module is used for setting the call switching type of the user equipment;
the acquisition module is used for acquiring related signaling messages under different network systems, and specifically comprises:
a 2G network source signal acquisition unit, which is used for acquiring an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC under a 2G network system;
the 2G network destination signal acquisition unit is used for acquiring an A interface signaling message of a cut-in side between a destination base station controller BSC and a mobile switching center MSC;
a 3G network source signal acquisition unit for acquiring lu-CS interface signaling messages of a call switching side between a source radio network controller RNC and a mobile switching center MSC under a 3G network system;
the 3G network destination signal acquisition unit is used for acquiring lu-CS interface signaling messages of a cut-in side between a destination wireless controller RNC and a mobile switching center MSC;
the call switching type judging module is used for switching the network modes and judging the type of call switching;
the analysis module is used for respectively analyzing related signaling messages under a 2G network system or related signaling messages under a 3G network system, and specifically comprises:
a source base station information analyzing unit, configured to analyze an interface signaling message on a call switching-out side of a source base station controller BSC or a radio network controller RNC, acquire first association information, use the first association information as a key value, and write corresponding call record information into a memory;
the destination base station information analysis unit is used for analyzing an interface signaling message of a cut-in side of a destination base station controller BSC or a radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory bank;
and the iteration module is used for repeatedly executing the call switching type judgment module and the analysis module until the call is ended and outputting a complete call ticket.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the signaling message method and the signaling message system in the network switching process meet the requirement of switching correlation analysis in the 2G and 3G network standard communication process, define the complete switching process of the user, correlate the front and back switching messages of the user and provide reliable technical support for switching scene optimization and full reduction of mobile communication.
Drawings
FIG. 1 is a network architecture diagram of an A-interface Iu-cs interface provided by the prior art;
fig. 2 is a flow of intra-office handover under the same MSC in the prior art;
fig. 3 is a flow of inter-office handover between different MSCs in the prior art;
FIG. 4 is a method for associating handover of a mobile phone call in a 2G/3G network system according to the present invention;
FIG. 5 shows the handover signaling between the source BSC/RNC and the destination BSC/RNC and the MSC that needs to be resolved by the embodiment of the present invention.
Detailed Description
In order to clearly and clearly explain the objects, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not intended to be limiting.
The handover related information and 4G handover association of the present invention do not have corresponding technical suggestions, because the information used for representing the location information of the ue in the 4G network is different from 2/3G; meanwhile, messages required to be accessed and analyzed are different, and S1-MME or other EPC domain network elements are required to be accessed and analyzed by 4G; 2/3G and 4G protocols are completely different, what the invention needs to resolve is BSSAP protocol of A port and RANAP protocol of Iu-CS port, which is different from S1AP protocol of S1-MME port and GTP protocol of S11 port or S1-U port in 4G network.
The method for associating handover of mobile communication in 2G and 3G network systems according to the present invention may be directed to intra-office handover in the same MSC, as shown in fig. 2, or may be directed to inter-office handover between different MSCs, as shown in fig. 3, and specifically includes:
step 1, setting a call switching type of user equipment, and collecting an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC and an A interface signaling message of a switching-in side between a target base station controller BSC and the mobile switching center MSC under a 2G network system;
acquiring lu-CS interface signaling messages of a call switching-out side between a source Radio Network Controller (RNC) and a Mobile Switching Center (MSC) and lu-CS interface signaling messages of a switching-in side between a target Radio Network Controller (RNC) and the Mobile Switching Center (MSC) under a 3G network mode;
the signaling message of the A interface and the signaling message of the lu-CS interface are both signaling messages of the MSC side of the mobile switching center, and other signaling messages are filtered.
The interface A is a digital interface widely applied on the relay side, and digital exchange and digital transmission are combined to form the current digital telecommunication network. The lu interface refers to the interface between the radio network controller RNC and the core network. Since voice and data are separately carried in the circuit domain and the data domain in the core network in the 3G network, the interface between the RNC and the core network is also divided into a circuit interface and a packet interface, i.e., lu-cs (circuit-switched lu interface). Fig. 1 is a diagram showing a related network structure of an a interface and an lu-cs interface in the prior art.
Step 2, the user equipment UE switches the network type and judges the type of call switching;
the types of call switching include switching to a 2G network system under a 3G network system, switching between Base Station Controllers (BSC) under the 2G network system, switching to the 3G network system under the 2G network system, and switching between Radio Network Controllers (RNC) under the 3G network system.
And judging the switching type according to the destination location type, if the destination location type is a CGI (Cell Global Identifier), switching to the 2G network, and if the destination location type is an SAI (Service area identification), switching to the 3G network.
Step 3, according to the network system switching type, analyzing the signaling messages of the cut-out side and the cut-in side respectively, as shown in fig. 4, respectively: step 31, analyzing an interface signaling message of a call switching-out side of a source base station controller BSC or a radio network controller RNC, acquiring first associated information, taking the first associated information as a key value, and writing corresponding call record information into a memory base;
as shown in fig. 5, specifically, message 1 and message 4 between the source BSC/RNC and the MSC are parsed.
If the call of the user equipment is switched between BSCs in the 2G network mode, the key value is the target position and the reference number, and if the call is switched between RNCs in the 3G network mode, the key value is the international mobile subscriber identity IMSI.
Step 32, analyzing an interface signaling message of the access side of the target base station controller BSC or the radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory. As shown in fig. 5, specifically, message 2, message 3, message 5 and message 6 between the destination BSC/RNC and the MSC are resolved.
And inquiring a key value of the memory bank, and aiming at the switching scene between the 3G network system and the 2G network system and the BSC under the 2G network system, wherein the key value is a target position and a reference number, namely associated information. Aiming at the switching scene between the 2G network system and the 3G network system and the switching scene between the RNCs in the 3G network system, the key value is the IMSI number, namely the associated information.
And 4, if the call switching continues to occur in the call, repeating the steps (2) and (3) until the call is ended, and outputting a complete call bill. And outputting the complete call ticket under the condition that the user finishes the call, namely receiving the call hang-up information message.
On the other hand, the invention also provides a switching correlation system of mobile communication under 2G and 3G network modes, which comprises the following steps:
the type setting module is used for setting the call switching type of the user equipment;
the acquisition module is used for acquiring related signaling messages under different network systems, and specifically comprises:
a 2G network source signal acquisition unit, which is used for acquiring an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC under a 2G network system;
the 2G network destination signal acquisition unit is used for acquiring an A interface signaling message of a cut-in side between a destination base station controller BSC and a mobile switching center MSC;
a 3G network source signal acquisition unit for acquiring lu-CS interface signaling messages of a call switching side between a source radio network controller RNC and a mobile switching center MSC under a 3G network system;
the 3G network destination signal acquisition unit is used for acquiring lu-CS interface signaling messages of a cut-in side between a destination wireless controller RNC and a mobile switching center MSC;
the call switching type judging module is used for switching the network modes and judging the type of call switching;
the analysis module is used for respectively analyzing related signaling messages under a 2G network system or related signaling messages under a 3G network system, and specifically comprises:
a source base station information analyzing unit, configured to analyze an interface signaling message on a call switching-out side of a source base station controller BSC or a radio network controller RNC, acquire first association information, use the first association information as a key value, and write corresponding call record information into a memory;
the destination base station information analysis unit is used for analyzing an interface signaling message of a cut-in side of a destination base station controller BSC or a radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory bank;
and the iteration module is used for repeatedly executing the call switching type judgment module and the analysis module until the call is ended and outputting a complete call ticket.
The invention relates to a method for switching a call on a BSC/RNC side due to the reasons of position updating, signal fluctuation and the like of a mobile user in 2G and 3G network modes, which leads to the fact that a call record is divided into a plurality of segment-type call signaling.
Claims (4)
1. A switching correlation method for mobile communication under 2G and 3G network modes is characterized in that the method comprises the following steps:
(1) setting a call switching type of user equipment, and acquiring an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC under a 2G network mode and an A interface signaling message of a switching-in side between a target base station controller BSC and the mobile switching center MSC;
acquiring lu-CS interface signaling messages of a call switching-out side between a source Radio Network Controller (RNC) and a Mobile Switching Center (MSC) and lu-CS interface signaling messages of a switching-in side between a target Radio Network Controller (RNC) and the Mobile Switching Center (MSC) under a 3G network mode;
(2) switching network systems, and judging the type of call switching;
judging the type of call switching and the type of a target position, if the type of the target position is CGI, switching to a 2G network system, and if the type of the target position is SAI, switching to a 3G network system;
if the conversation of the user equipment is in a switching scene between BSCs in a 2G network mode, the key value is the target position and the reference number, and if the conversation is in a switching scene between RNCs in a 3G network mode, the key value is the international mobile subscriber identity;
(3) respectively analyzing interface signaling messages of a call switching side of a source base station controller BSC or a radio network controller RNC according to a network system switching type, acquiring first associated information, taking the first associated information as a key value, and writing corresponding call record information into a memory;
analyzing an interface signaling message of a cut-in side of a target base station controller BSC or a radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory;
(4) and (4) if the call switching continues to occur in the call, repeating the steps (2) and (3) until the call is ended, and outputting a complete call bill.
2. The method according to claim 1, wherein in step (1), the signaling message of the a interface and the signaling message of the lu-CS interface are both signaling messages of the MSC side of the mobile switching center, and other signaling messages are filtered.
3. The method according to claim 1, wherein in step (1), the type of call handover includes handover between a 3G network standard to a 2G network standard, handover between base station controllers BSC in the 2G network standard, handover between a 2G network standard to a 3G network standard, and handover between radio network controllers RNC in the 3G network standard.
4. A switching correlation system of mobile communication under 2G and 3G network modes is characterized by comprising:
the type setting module is used for setting the call switching type of the user equipment;
the acquisition module is used for acquiring related signaling messages under different network systems, and specifically comprises:
a 2G network source signal acquisition unit, which is used for acquiring an A interface signaling message of a call switching-out side between a source base station controller BSC and a mobile switching center MSC under a 2G network system;
the 2G network destination signal acquisition unit is used for acquiring an A interface signaling message of a cut-in side between a destination base station controller BSC and a mobile switching center MSC;
a 3G network source signal acquisition unit for acquiring lu-CS interface signaling messages of a call switching side between a source radio network controller RNC and a mobile switching center MSC under a 3G network system;
the 3G network destination signal acquisition unit is used for acquiring lu-CS interface signaling messages of a cut-in side between a destination wireless controller RNC and a mobile switching center MSC;
the call switching type judging module is used for switching the network modes and judging the type of call switching;
specifically, the type of call switching and the type of a target position are judged, if the type of the target position is a CGI, switching is performed to a 2G network system, and if the type of the target position is an SAI, switching is performed to a 3G network system;
if the conversation of the user equipment is in a switching scene between BSCs in a 2G network mode, the key value is the target position and the reference number, and if the conversation is in a switching scene between RNCs in a 3G network mode, the key value is the international mobile subscriber identity;
the analysis module is used for respectively analyzing related signaling messages under a 2G network system or related signaling messages under a 3G network system, and specifically comprises:
a source base station information analyzing unit, configured to analyze an interface signaling message on a call switching-out side of a source base station controller BSC or a radio network controller RNC, acquire first association information, use the first association information as a key value, and write corresponding call record information into a memory;
the destination base station information analysis unit is used for analyzing an interface signaling message of a cut-in side of a destination base station controller BSC or a radio network controller RNC, acquiring second associated information, taking the second associated information as a key value, and acquiring corresponding call record information from a memory bank;
and the iteration module is used for repeatedly executing the call switching type judgment module and the analysis module until the call is ended and outputting a complete call ticket.
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