CN109275167A - A kind of core network selection method, device and network system - Google Patents
A kind of core network selection method, device and network system Download PDFInfo
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- CN109275167A CN109275167A CN201811096357.9A CN201811096357A CN109275167A CN 109275167 A CN109275167 A CN 109275167A CN 201811096357 A CN201811096357 A CN 201811096357A CN 109275167 A CN109275167 A CN 109275167A
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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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- 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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment provides a kind of core network selection method, device and network systems, are related to field of communication technology, solve in the prior art terminal device between different networks mutually switch when, the longer problem of the time delay of switching.This method includes obtaining the communication data generated when terminal device mutually switches between the different networks；According to communication data, the mapping relations of the ID of the ID and MME of SGSN are determined；According to mapping relations, the ID for meeting the ID and MME of SGSN of preset condition is determined；The ID composition SGSN/MME POOL that the ID and MME of the SGSN of preset condition will be met, is connected to SGSN/MME POOL when initiating network connection again so as to terminal device.The embodiment of the present invention is used to indicate how terminal device selects core net.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of core network selection methods, device and network system.
Background technique
In the prior art, when terminal device mutually switches between different networks, need to disconnect current core net, weight
Core net after being newly connected to switching；Illustratively, (its is illustrated so that terminal device switches to 4G network by 3G network as an example
In, the corresponding core network element of 3G network be Serving GPRS Support Node (full name in English: Serving GPRS Support Node,
Referred to as: SGSN), the corresponding core network element of 4G network is network node (full name in English: Mobility Management
Entity, referred to as: MME), the SGSN for needing disconnection currently to connect when terminal device switches to 4G network by 3G network, and according to
Preference strategy finds currently accessible MME, and when searching out the MME for meeting preference strategy, terminal device and the MME are established and connected
Connect the process that 4G network is switched to by 3G network to completion.
In actual application, terminal device between different networks mutually switching when, be required to find meet it is excellent
The first core network element of strategy could be completed when finding the core network element for meeting the preference strategy between corresponding different network
Mutually switching, internetwork handover delay are longer.
It can be seen from the above, when terminal device mutually switches between different networks in the prior art, internetwork switching
Time delay is longer.
Summary of the invention
The embodiment of the present invention provides a kind of core network selection method, device and network system, solves in the prior art
When terminal device mutually switches between different networks, the internetwork longer problem of handover delay.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the present invention provides a kind of core network selection method, comprising: obtain terminal device in difference
The communication data generated when mutually switching between network；Wherein, heterogeneous networks include at least: 3G network and 4G network, 3G network
Including at least one SGSN, 4G network includes at least one MME, and communication data includes at least: TAU and RAU；According to communication number
According to determining the mapping relations of the ID of the ID and MME of SGSN；According to mapping relations, determine the ID for meeting the SGSN of preset condition and
The ID of MME；The ratio of the quantity of the ID of MME occurs in communication data quantity and total MME is greater than the first preset threshold, and logical
The ratio of the quantity of the ID of SGSN occurs in letter data quantity and total SGSN is greater than the second preset threshold；Default item will be met
The ID of the ID and MME of the SGSN of part form SGSN/MME POOL, are connected to when initiating network connection again so as to terminal device
SGSN/MME POOL；Wherein, SGSN/MME POOL includes the mapping pass for meeting the ID of ID and MME of the SGSN of preset condition
System.
By above scheme it is found that the core network selection method that the embodiment of the present invention provides passes through analysing terminal equipment not
With the communication data generated when mutually switching between network, so as to obtain terminal device between the core net of heterogeneous networks
Mapping relations when mutually switching, and the ID for meeting the ID and MME of the SGSN of preset condition is found out according to the mapping relations, and will
Meet the ID composition SGSN/MME POOL of the ID and MME of the SGSN of preset condition, so that the terminal device initiates network again
The SGSN/MME POOL is connected to when connection；Thus when terminal device initiates network connection again, in the SGSN/MME
When carrying out network switching in POOL, according to the mapping relations of the ID of the ID for the SGSN for meeting preset condition and MME, directly progress core
The selection of heart net is required to searching and meets preferential plan without terminal device in mutually switching between different networks
Core network element slightly could be completed between corresponding different network mutually when finding the core network element for meeting the preference strategy
Switching；Therefore, solve in the prior art terminal device between different networks mutually switch when, internetwork handover delay
Longer problem.
Optionally, the communication data generated when terminal device mutually switches between the different networks is obtained, comprising: obtain eventually
The XDR data that end equipment generates when mutually switching between the different networks；If PRELAC field is corresponding in the XDR data of 3G network
Numerical value be equal to the corresponding numerical value of MMEGI field in the XDR data of 4G network, and PRELAC in the XDR data of 3G network
The corresponding numerical value of field is not equal to when the corresponding numerical value of LAC field, being determined as 4G network switching to 3G in the XDR data of 3G network
The RAU of network；If the corresponding numerical value of OLD_GUTI field is equal to the LAC in the XDR data of 3G network in the XDR data of 4G network
The corresponding numerical value of field, and the corresponding numerical value of OLD_GUTI field is not equal to the XDR number of 4G network in the XDR data of 4G network
When numerical value corresponding according to middle MMEGI field, it is determined as the TAU that 3G network switches to 4G network.
Optionally, this method further include: determine that the ID of the ID and MME of the SGSN in communication data are unsatisfactory for preset condition
When, obtain the data transmission delay of communication data；Determine the data transmission delay of MME and the data transmission delay of each MME
Difference be all larger than or be equal to delay threshold when, obtain the handover success rate of the TAU of MME；Determine the handover success of the TAU of MME
When the difference of the handover success rate of the TAU of rate and each MEE is respectively less than or is equal to success rate threshold value, deposited by MME and with MME
SGSN/MME POOL is formed in the SGSN of mapping relations.
Optionally, this method further include: determine that the ID of the ID and MME of the SGSN in communication data are unsatisfactory for preset condition
When, obtain the data transmission delay of communication data；When the data of the data transmission delay and each SGSN that determine SGSN are transmitted
When the difference prolonged is all larger than or is equal to delay threshold, the handover success rate of the RAU of SGSN is obtained；Determine the switching of the RAU of SGSN
When the difference of the handover success rate of the RAU of success rate and each SGSN is respectively less than or is equal to success rate threshold value, by SGSN and
There are the MME of mapping relations to form SGSN/MMEPOOL with SGSN.
Second aspect, the embodiment of the present invention provide a kind of core net selection device, comprising: module are obtained, for obtaining
The communication data that terminal device generates when mutually switching between the different networks；Wherein, heterogeneous networks include at least: 3G network and
4G network, 3G network include at least one SGSN, and 4G network includes at least one MME, and communication data includes at least: TAU and
RAU；Processing module, the communication data for obtaining according to module is obtained, determines the mapping relations of the ID of the ID and MME of SGSN；
Processing module is also used to determine the ID for the ID and MME of SGSN for meeting preset condition according to mapping relations；MME in communication data
The ratio of the quantity of quantity and total MME that occurs of the ID ID that is greater than SGSN in the first preset threshold and communication data occur
Quantity and the ratio of quantity of total SGSN be greater than the second preset threshold；Processing module is also used to that preset condition will be met
The ID of the ID and MME of SGSN form SGSN/MME POOL, are connected to SGSN/ when initiating network connection again so as to terminal device
MME POOL；Wherein, SGSN/MMEPOOL includes the mapping relations for meeting the ID of ID and MME of the SGSN of preset condition.
Optionally, module is obtained, specifically for obtaining the XDR generated when terminal device mutually switches between the different networks
Data；Processing module, if specifically for corresponding numerical value of PRELAC field in the XDR data for the 3G network for obtaining module acquisition etc.
The corresponding numerical value of MMEGI field in the XDR data of 4G network, and obtain module acquisition 3G network XDR data in
The corresponding numerical value of PRELAC field in the XDR data of 3G network not equal to when the corresponding numerical value of LAC field, being determined as 4G network and cut
Shift to the RAU of 3G network；Processing module, if specifically for OLD_GUTI word in the XDR data for the 4G network for obtaining module acquisition
The corresponding numerical value of section is equal to the corresponding numerical value of LAC field in the XDR data of 3G network, and obtains the 4G network of module acquisition
XDR data in the corresponding numerical value of OLD_GUTI field not equal to 4G network XDR data in the corresponding numerical value of MMEGI field
When, it is determined as the TAU that 3G network switches to 4G network.
Optionally, module is obtained, processing module is also used to and determines that the ID of the ID and MME of SGSN in communication data are unsatisfactory for
When preset condition, the data transmission delay of communication data is obtained；Module is obtained, processing module is also used to and determines that the data of MME pass
When the difference of the data transmission delay of defeated time delay and each MME is all larger than or is equal to delay threshold, cutting for the TAU of MME is obtained
Change power into；Processing module is also used to determine the handover success rate for the TAU for obtaining the MME that module obtains with each MEE's
When the difference of the handover success rate of TAU is respectively less than or is equal to success rate threshold value, by MME and with MME, there are mapping relations
SGSN forms SGSN/MME POOL.
Optionally, module is obtained, processing module is also used to and determines that the ID of the ID and MME of SGSN in communication data are unsatisfactory for
When preset condition, the data transmission delay of communication data is obtained；Module is obtained, processing module is also used to and determines that the data of SGSN pass
When the difference of the data transmission delay of defeated time delay and each SGSN is all larger than or is equal to delay threshold, obtain the RAU's of SGSN
Handover success rate；Processing module is also used to determine the handover success rate and each SGSN of the RAU for obtaining the SGSN that module obtains
RAU handover success rate difference be respectively less than or be equal to success rate threshold value when, by SGSN and with SGSN, there are mapping relations
MME form SGSN/MME POOL.
The third aspect, the embodiment of the present invention provide a kind of network system, comprising: terminal device, base station and such as second
Any one core net selection device that aspect provides.
Fourth aspect, the embodiment of the present invention provide a kind of computer storage medium, including instruction, when its on computers
When operation, so that computer executes the described in any item core network selection methods provided such as above-mentioned first aspect.
5th aspect, the embodiment of the present invention provide a kind of core net selection device, comprising: communication interface, is deposited processor
Reservoir, bus；For storing computer executed instructions, processor is connect with memory by bus memory, when core net is selected
When selecting device operation, processor executes the computer executed instructions of memory storage, so that core net selection device executes as above
Described in any item core network selection methods of first aspect offer are provided.
It is to be appreciated that any core net selection device of above-mentioned offer is for executing first aspect presented above
Corresponding method, therefore, attainable beneficial effect can refer to the method for first aspect above and implement in detail below
The beneficial effect of corresponding scheme in mode, details are not described herein again.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram for core network selection method that the embodiment of the present invention provides；
Fig. 2 is a kind of operation logic schematic diagram for core network selection method that the embodiment of the present invention provides；
Fig. 3 is a kind of one of the structural schematic diagram for core net selection device that the embodiment of the present invention provides；
Fig. 4 is a kind of second structural representation for core net selection device that the embodiment of the present invention provides.
Appended drawing reference:
Core net selection device -10；
Obtain module -101；Processing module -102.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
For the ease of clearly describing the technical solution of the embodiment of the present invention, in an embodiment of the present invention, use " the
One ", the printed words such as " second " distinguish function and the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not to be defined to quantity and execution order.
In embodiments of the present invention, " illustrative " or " such as " etc. words for indicate make example, illustration or explanation.This
Be described as in inventive embodiments " illustrative " or " such as " any embodiment or design scheme be not necessarily to be construed as comparing
Other embodiments or design scheme more preferably or more advantage.Specifically, use " illustrative " or " such as " etc. words purport
Related notion is being presented in specific ways.
In the description of the embodiment of the present invention, unless otherwise indicated, the meaning of " plurality " is refer to two or more.Example
Such as, multiple networks refer to two or more networks.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Symbol herein
Number "/" indicates that affiliated partner is that relationship such as A/B perhaps indicates A or B.
Terminal device in the embodiment of the present invention can be intelligent mobile terminal.The intelligent mobile terminal is to be with operation
The mobile terminal of system.The intelligent mobile terminal can be with are as follows: smart phone, tablet computer, laptop, super mobile personal meter
Calculation machine (ultra-mobile personal computer, UMPC), net book, personal digital assistant (personal
Digital assistant, PDA), smartwatch, the terminal devices such as Intelligent bracelet or the intelligent mobile terminal can also be
Other kinds of intelligent mobile terminal, the embodiment of the present invention are not specifically limited.
Embodiment one
The embodiment of the present invention provides a kind of core network selection method, includes: as shown in Figure 1
S101, the communication data generated when terminal device mutually switches between the different networks is obtained；Wherein, heterogeneous networks
Include at least: 3G network and 4G network, 3G network include at least one Serving GPRS Support Node (full name in English: Serving
GPRS Support Node, referred to as: SGSN), 4G network includes at least one network node (full name in English: Mobility
Management Entity, referred to as: MME), communication data includes at least: location area updating (full name in English: Tracking
Area Update, referred to as: TAU) and Routing Area Update (full name in English: Route Area Update, referred to as: RAU).
It should be noted that the equipment of the core network of 3G network is SGSN, the equipment of the core network of 4G network in practical applications
For MME.
Optionally, the communication data generated when terminal device mutually switches between the different networks is obtained, comprising:
S1010, obtain terminal device between the different networks mutually switch when generate external data (full name in English:
External Data Representation, referred to as: XDR) (XDR data refer to the signaling based on control plane to XDR data here
After data and the business datum in user face are handled, the signaling of generation used for application system and the detailed record of business).
It should be noted that communication data includes the XDR data and 3G network of user's 4G network in actual application
XDR data, the field that wherein the XDR data of 4G network need to use are OLD_GUTI, MMEGI, MMEC；The XDR number of 3G network
It is LAC, PRERAC, PRELAC, TMSI according to the field for needing to use.
If the corresponding numerical value of PRELAC field is equal in the XDR data of 4G network in the XDR data of S1011,3G network
The corresponding numerical value of MMEGI field, and the corresponding numerical value of PRELAC field is not equal to 3G network in the XDR data of 3G network
In XDR data when the corresponding numerical value of LAC field, it is determined as the RAU of 4G network switching to 3G network.
It should be noted that being filtered out in communication data in practical applications by the RAU of 4G network switching to 3G network, packet
Include following steps:
The XDR data of 3G network are checked, if the numerical value of the PRELAC field in the XDR data is not equal in the XDR data
The numerical value that indicates of LAC field, and the numerical value that MMEGI (16) field that is equal in the XDR data of 4G network indicates, it is determined that
The RAU is RAU of the 4G network switching to 3G network.
Wherein, MMEGI field uses 16 systems in actual application, and PRELAC field uses 10 systems；Therefore, right
When the relationship for the numerical value that the numerical value and PRELAC field for answering MMEGI field to indicate indicate, need to carry out system conversion, unified system
Afterwards, it compares.
If the corresponding numerical value of OLD_GUTI field is equal in the XDR data of 3G network in the XDR data of S1012,4G network
The corresponding numerical value of LAC field, and in the XDR data of 4G network the corresponding numerical value of OLD_GUTI field not equal to 4G network
In XDR data when the corresponding numerical value of MMEGI field, it is determined as the TAU that 3G network switches to 4G network.
It should be noted that filtering out in communication data in actual application and switching to 4G network by 3G network
TAU, comprising the following steps:
The XDR information of 4G network is checked, if the numerical value of the OLD_GUTI field in the XDR data is not equal to the XDR data
In MMEGI field numerical value, and the numerical value of LAC (10 system) field being equal in the XDR information of 3G network, it is determined that should
TAU is the TAU that 3G network switches to 4G network.
Wherein, OLD_GUTI field uses 16 systems in actual application, and LAC field uses 10 systems；Therefore, right
Than the numerical value of the numerical value and LAC field of OLD_GUTI field relationship when, need to carry out system conversion, after unified system, carry out
Comparison.
Specifically, being generated in actual application when collecting terminal device and mutually switching between the different networks
After XDR data, needing to carry out the XDR data data processing (includes: to check mathematical logic mistake, Exception Filter data, delete
Repetition values etc.), to guarantee the accuracy of XDR data.
S102, according to communication data, determine the mapping relations of the ID of the ID and MME of SGSN.
S103, according to mapping relations, determine the ID for meeting the ID and MME of SGSN of preset condition；MME in communication data
What the ID that the ratio of the quantity of quantity and total MME that ID occurs is greater than SGSN in the first preset threshold and communication data occurred
The ratio of quantity and the quantity of total SGSN is greater than the second preset threshold.
It should be noted that in actual application, according to mapping relations, determine the ID for meeting the SGSN of preset condition and
The ID of MME, comprising:
In the TAU filtered out, the XDR data of 4G network are checked.Wherein, the MMEC field in the XDR data of 4G network
Indicate the ID of MME, the position 15-16 of the OLD_GUTI field in the XDR data of 4G network usually indicates the Internet resources of source SGSN
Mark (full name in English: (Network Resource Identifier, referred to as: NRI) NRI, OLD_GUTI field in the present invention
The position 15-16 indicate SGSN ID.
The ID for counting the ID and MME of SGSN in TAU, obtains corresponding mapping relations, while recording ID pairs of each SGSN
Answer the quantity of the ID of different MME.
Assuming that the ID number of the corresponding MME of the ID of a SGSN is N, General N < 4, the first preset thresholdSuch as
The fruit accounting that there are the ID quantity of single MME in total MME is greater than P1, then the corresponding MME of the ID is to meet preset condition
MME。
In the RAU filtered out, the XDR data of 3G network are checked.Wherein, the PRERAC word in the XDR data of 3G network
Segment table shows the ID of MME, and the position 3-4 of TMSI (16 system) field usually indicates the NRI of target SGSN, TMSI in the present invention (16 into
System) field the position 3-4 expression SGSN ID.
The ID for counting the ID and SGSN of MME in RAU, obtains corresponding mapping relations.The ID for counting each MME is corresponding different
SGSN ID quantity.
Assuming that the ID number of the corresponding SGSN of the ID of a MME is N, General N < 4, the second preset thresholdSuch as
The fruit accounting that there are the quantity of the ID of single SGSN in total SGSM is greater than P2, then the corresponding SGSN of the ID is to meet default item
The SGSN of part.
S104, will meet preset condition SGSN ID and MME ID composition SGSN/MMEPOOL, again so as to terminal device
Secondary initiation is connected to SGSN/MME POOL when being connected to the network；Wherein, SGSN/MME POOL includes the SGSN for meeting preset condition
ID and MME ID mapping relations.
After SGSN/MME POOL is completed in judgement, problem can be verified according to this, adjust network structure, it is ensured that user is in 3G
The MME/SGSN POOL of selection fusion improves when mutually switching between network and 4G network to reduce intra-system handover time delay
Resource utilization promotes user's perception.
Optionally, this method as shown in Figure 2 further include:
S105, when determining that the ID of the ID and MME of SGSN in communication data are unsatisfactory for preset condition, communication data is obtained
Data transmission delay.
The difference of S106, the data transmission delay for determining MME and the data transmission delay of each MME are all larger than or are equal to
When delay threshold, the handover success rate of the TAU of MME is obtained.
It should be noted that the data of the data transmission delay and each MME that determine MME pass in actual application
The difference of defeated time delay and the relationship of delay threshold, comprising:
To the TAU filtered out, the analysis of the data transmission delay of TAU is carried out, counts the data transmission of the TAU of different MME
The average delay of time delay, if data transmission delay of the data transmission delay of the corresponding TAU of one of MME than other MME
Lack M, then needs further to analyze the success rate of TAU.It (is tested according to mass data, M1≥30ms)。
S107, determine that the difference of handover success rate and the handover success rate of the TAU of each MEE of the TAU of MME is respectively less than
Or when being equal to success rate threshold value, by MME and with MME, there are the SGSN of mapping relations to form SGSN/MME POOL.
It should be noted that determining the handover success rate of the TAU of MME and the TAU of each MEE in actual application
Handover success rate difference and success rate threshold value relationship, comprising:
To the TAU filtered out, the analysis of the handover success rate of TAU is carried out, counts the handover success rate of the TAU of different MME,
If the handover success rate of the corresponding TAU of one of MME is N higher than the handover success rate of the TAU of other MME1, then it is assumed that it should
MME can form SGSN/MME POOL and (be tested according to mass data, N1>=2.5%).
Optionally, this method as shown in Figure 2 further include:
S105, when determining that the ID of the ID and MME of SGSN in communication data are unsatisfactory for preset condition, communication data is obtained
Data transmission delay.
The difference of S108, the data transmission delay for determining SGSN and the data transmission delay of each SGSN are all larger than or wait
When delay threshold, the handover success rate of the RAU of SGSN is obtained.
It should be noted that determining the data transmission delay of SGSN and the data of each SGSN in actual application
The difference of propagation delay time and the relationship of delay threshold, comprising:
To the RAU filtered out, the analysis of the handover success rate of RAU is carried out, carries out the analysis of the data transmission delay of RAU,
The average delay of the data transmission delay of the RAU of different SGSN is counted, if when the data transmission of the corresponding RAU of one of SGSN
Prolong the few M of data transmission delay than other SGSN, then the success rate for further analyzing TAU is needed (to be surveyed according to mass data
Examination, M2More than or equal to 30ms).
S109, determine SGSN RAU handover success rate and the handover success rate of the RAU of each SGSN difference it is small
When success rate threshold value, by SGSN and with SGSN, there are the MME of mapping relations to form SGSN/MME POOL.
It should be noted that determining the handover success rate of the RAU of SGSN with each SGSN's in actual application
The difference of the handover success rate of RAU and the relationship of success rate threshold value, comprising:
To the RAU filtered out, the analysis of the handover success rate of RAU is carried out, counts the handover success of the RAU of different SGSN
Rate, if the handover success rate of the corresponding RAU of one of SGSN is N higher than the handover success rate of the RAU of other SGSN2, then
Think that the SGSN can form SGSN/MME POO L and test according to mass data, N2More than or equal to 2.5%).
By above scheme it is found that the core network selection method that the embodiment of the present invention provides passes through analysing terminal equipment not
With the communication data generated when mutually switching between network, so as to obtain terminal device between the core net of heterogeneous networks
Mapping relations when mutually switching, and the ID for meeting the ID and MME of the SGSN of preset condition is found out according to the mapping relations, and will
Meet the ID composition SGSN/MME POOL of the ID and MME of the SGSN of preset condition, so that the terminal device initiates network again
The SGSN/MME POOL is connected to when connection；Thus when terminal device initiates network connection again, in the SGSN/MME
When carrying out network switching in POOL, according to the mapping relations of the ID of the ID for the SGSN for meeting preset condition and MME, directly progress core
The selection of heart net is required to searching and meets preferential plan without terminal device in mutually switching between different networks
Core network element slightly could be completed between corresponding different network mutually when finding the core network element for meeting the preference strategy
Switching；Therefore, solve in the prior art terminal device between different networks mutually switch when, internetwork handover delay
Longer problem.
Embodiment two
The embodiment of the present invention provides a kind of core net selection device 10, includes: as shown in Figure 3
Module 101 is obtained, for obtaining the communication data generated when terminal device mutually switches between the different networks；Its
In, heterogeneous networks include at least: 3G network and 4G network, and 3G network includes at least one SGSN, and 4G network includes at least one
MME, communication data include at least: TAU and RAU.
Processing module 102, the communication data for obtaining according to module is obtained, determines reflecting for the ID of the ID and MME of SGSN
Penetrate relationship.
Processing module 102 is also used to determine the ID for the ID and MME of SGSN for meeting preset condition according to mapping relations；It is logical
The ratio of the quantity of the ID of MME occurs in letter data quantity and total MME is greater than in the first preset threshold and communication data
The ratio of the quantity of quantity and total SGSN that the ID of SGSN occurs is greater than the second preset threshold.
Processing module 102 is also used to meet the ID composition SGSN/MME POOL of the ID and MME of the SGSN of preset condition,
SGSN/MME POOL is connected to when initiating network connection again so as to terminal device；Wherein, SGSN/MME POOL includes meeting
The mapping relations of the ID of the ID and MME of the SGSN of preset condition.
Optionally, module 101 is obtained, is generated when mutually switching between the different networks specifically for acquisition terminal device
XDR data.
Processing module 102, if specifically for PRELAC field pair in the XDR data for the 3G network for obtaining the acquisition of module 101
The numerical value answered is equal to the corresponding numerical value of MMEGI field in the XDR data of 4G network, and obtains the 3G net of the acquisition of module 101
The corresponding numerical value of PRELAC field is not equal in the XDR data of 3G network when the corresponding numerical value of LAC field in the XDR data of network,
It is determined as the RAU of 4G network switching to 3G network.
Processing module 102, if specifically for OLD_GUTI field in the XDR data for the 4G network for obtaining the acquisition of module 101
Corresponding numerical value is equal to the corresponding numerical value of LAC field in the XDR data of 3G network, and obtains the 4G net of the acquisition of module 101
The corresponding numerical value of OLD_GUTI field is not equal to the corresponding numerical value of MMEGI field in the XDR data of 4G network in the XDR data of network
When, it is determined as the TAU that 3G network switches to 4G network.
Optionally, module 101 is obtained, the ID of the ID and MME of the SGSN in the determining communication data of processing module 102 are also used to
When being unsatisfactory for preset condition, the data transmission delay of communication data is obtained.
Module 101 is obtained, processing module 102 is also used to and determines that the data transmission delay of MME and the data of each MME pass
When the difference of defeated time delay is all larger than or is equal to delay threshold, the handover success rate of the TAU of MME is obtained.
Processing module 102 is also used to determine the handover success rate for obtaining the TAU of MME of the acquisition of module 101 and each
When the difference of the handover success rate of the TAU of MEE is respectively less than or is equal to success rate threshold value, by MME and with MME, there are mapping relations
SGSN form SGSN/MMEPOOL.
Optionally, module 101 is obtained, the ID of the ID and MME of the SGSN in the determining communication data of processing module 102 are also used to
When being unsatisfactory for preset condition, the data transmission delay of communication data is obtained.
Module 101 is obtained, processing module 102 is also used to and determines the data transmission delay of SGSN and the data of each SGSN
When the difference of propagation delay time is all larger than or is equal to delay threshold, the handover success rate of the RAU of SGSN is obtained.
Processing module 102 is also used to determine the handover success rate for obtaining the RAU of SGSN of the acquisition of module 101 and each
When the difference of the handover success rate of the RAU of SGSN is respectively less than or is equal to success rate threshold value, there is mapping by SGSN and with SGSN
The MME of relationship forms SGSN/MMEPOOL.
Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module
Function description, effect details are not described herein.
Using integrated module, core net selection device includes: to obtain module, processing module and storage
Module.Processing module is for carrying out control management to the movement of core net selection device, for example, processing unit is for supporting core
Net selection device executes process S101, S102, S103 and S104 in Fig. 1；Module is obtained for supporting core net selection device
With the information exchange of other equipment.Memory module, for storing the program code and data of core net selection device.
Wherein, using processing module as processor, memory module is memory, obtains module as communication interface.Wherein,
Core net selection device referring to fig. 4, including communication interface 501, processor 502, memory 503 and bus 504, communication
Interface 501, processor 502 are connected by bus 504 with memory 503.
Processor 502 can be a general central processor (Central Processing Unit, CPU), micro process
Device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or more
A integrated circuit executed for controlling application scheme program.
Memory 503 can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (Random Access Memory, RAM) or letter can be stored
The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically
Erasable Programmable Read-only Memory, EEPROM), CD-ROM (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal
Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to
Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this.
Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor.
Wherein, memory 503 is used to store the application code for executing application scheme, and is controlled by processor 502
System executes.Communication interface 501 is used to carry out information exchange, such as the information exchange with remote controler with other equipment.Processor 502
For executing the application code stored in memory 503, to realize method described in the embodiment of the present application.
In addition, a kind of calculating storage media (or medium) is also provided, including carrying out in above-described embodiment when executed
The instruction for the method operation that core net selection device executes.In addition, also providing a kind of computer program product, including above-mentioned calculating
It stores media (or medium).
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art may be aware that mould described in conjunction with the examples disclosed in the embodiments of the present disclosure
Block and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it can be with
It realizes by another way.For example, apparatus embodiments described above are merely indicative, for example, the module
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple module or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of equipment or module
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple
On network module.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module
It is that modules physically exist alone, can also be integrated in two or more modules in a module.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (full name in English: read-only memory, English letter
Claim: ROM), random access memory (full name in English: random access memory, English abbreviation: RAM), magnetic disk or light
The various media that can store program code such as disk.
It is to be appreciated that any core net selection device of above-mentioned offer is for executing embodiment one presented above
Corresponding method, therefore, attainable beneficial effect can refer to the method for foregoing embodiments one and implement in detail below
The beneficial effect of corresponding scheme in mode, details are not described herein again.
Embodiment three
The embodiment of the present invention provides a kind of network system, comprising: terminal device, base station and as second aspect provide
Any one core net selection device 10.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of core network selection method characterized by comprising
Obtain the communication data generated when terminal device mutually switches between the different networks；Wherein, the heterogeneous networks are at least
It include: 3G network and 4G network, the 3G network includes at least one SGSN, and the 4G network includes at least one MME, described
Communication data includes at least: TAU and RAU；
According to the communication data, the mapping relations of the ID of the ID and MME of SGSN are determined；
According to the mapping relations, the ID for meeting the ID and MME of SGSN of preset condition is determined；Described in the communication data
The ratio of the quantity of quantity and total MME that the ID of MME occurs is greater than described in the first preset threshold and the communication data
The ratio of the quantity of quantity and total SGSN that the ID of SGSN occurs is greater than the second preset threshold；
The ID composition SGSN/MME POOL of the ID and MME of the SGSN of the preset condition will be met, again so as to the terminal device
Secondary initiation is connected to the SGSN/MME POOL when being connected to the network；Wherein, the SGSN/MME POOL is described pre- including meeting
If the mapping relations of the ID of the ID and MME of the SGSN of condition.
2. core network selection method according to claim 1, which is characterized in that the acquisition terminal device is in heterogeneous networks
Between the communication data that generates when mutually switching, comprising:
Obtain the XDR data generated when terminal device mutually switches between the different networks；
If the corresponding numerical value of PRELAC field is equal to the MMEGI field pair in the XDR data of 4G network in the XDR data of 3G network
The numerical value answered, and the corresponding numerical value of PRELAC field is not equal to the XDR number of the 3G network in the XDR data of the 3G network
When numerical value corresponding according to middle LAC field, it is determined as the RAU of 4G network switching to 3G network；
If the corresponding numerical value of OLD_GUTI field is equal to the LAC field pair in the XDR data of 3G network in the XDR data of 4G network
The numerical value answered, and the corresponding numerical value of OLD_GUTI field is not equal to the XDR of the 4G network in the XDR data of the 4G network
In data when the corresponding numerical value of MMEGI field, it is determined as the TAU that 3G network switches to 4G network.
3. core network selection method according to claim 1, which is characterized in that the method also includes:
When determining that the ID of the ID and the MME of the SGSN in the communication data are unsatisfactory for the preset condition, institute is obtained
State the data transmission delay of communication data；
Determine that the difference of the data transmission delay of the MME and the data transmission delay of each MME is all larger than or is equal to time delay
When threshold value, the handover success rate of the TAU of the MME is obtained；
Determine that the difference of the handover success rate of the TAU of the MME and the handover success rate of the TAU of each MEE is respectively less than or waits
When success rate threshold value, by the MME and with the MME, there are the SGSN of mapping relations to form SGSN/MME POOL.
4. core network selection method according to claim 1, which is characterized in that the method also includes:
When determining that the ID of the ID and the MME of the SGSN in the communication data are unsatisfactory for the preset condition, institute is obtained
State the data transmission delay of communication data；
When determining that the difference of the data transmission delay of the SGSN and the data transmission delay of each SGSN is all larger than or is equal to
When prolonging threshold value, the handover success rate of the RAU of the SGSN is obtained；
Determine the difference of the handover success rate of the RAU of the SGSN and the handover success rate of the RAU of each SGSN be respectively less than or
When equal to success rate threshold value, by the SGSN and with the SGSN, there are the MME of mapping relations to form SGSN/MME POOL.
5. a kind of core net selection device characterized by comprising
Module is obtained, for obtaining the communication data generated when terminal device mutually switches between the different networks；Wherein, described
Heterogeneous networks include at least: 3G network and 4G network, and the 3G network includes at least one SGSN, and the 4G network includes at least
One MME, the communication data include at least: TAU and RAU；
Processing module, the communication data for being obtained according to the acquisition module, determines reflecting for the ID of the ID and MME of SGSN
Penetrate relationship；
The processing module is also used to determine the ID for the ID and MME of SGSN for meeting preset condition according to the mapping relations；
The ratio of the quantity of quantity and total MME that the ID of MME described in the communication data occurs is greater than the first preset threshold and institute
The ratio for stating the quantity of the ID appearance of SGSN described in communication data and the quantity of total SGSN is greater than the second preset threshold；
The processing module is also used to meet the ID composition SGSN/MME of the ID and MME of the SGSN of the preset condition
POOL is connected to the SGSN/MME POOL when initiating network connection again so as to the terminal device；Wherein, the SGSN/
MME POOL includes the mapping relations for meeting the ID of ID and MME of the SGSN of the preset condition.
6. core net selection device according to claim 5, which is characterized in that the acquisition module is specifically used for obtaining
The XDR data that terminal device generates when mutually switching between the different networks；
The processing module, if corresponding specifically for PRELAC field in the XDR data of the 3G network of the acquisition module acquisition
Numerical value be equal to 4G network XDR data in the corresponding numerical value of MMEGI field, and it is described obtain module obtain the 3G
The corresponding numerical value of PRELAC field is not equal to the corresponding number of LAC field in the XDR data of the 3G network in the XDR data of network
When value, it is determined as the RAU of 4G network switching to 3G network；
The processing module, if specifically for OLD_GUTI field pair in the XDR data of the 4G network of the acquisition module acquisition
The numerical value answered is equal to the corresponding numerical value of LAC field in the XDR data of 3G network, and the 4G for obtaining module and obtaining
The corresponding numerical value of OLD_GUTI field is corresponding not equal to MMEGI field in the XDR data of the 4G network in the XDR data of network
Numerical value when, be determined as the TAU that 3G network switches to 4G network.
7. core net selection device according to claim 5, which is characterized in that the acquisition module is also used to the place
When reason module determines that the ID of the ID and the MME of the SGSN in the communication data are unsatisfactory for the preset condition, obtain
The data transmission delay of the communication data；
The acquisition module is also used to the processing module and determines the data transmission delay of the MME and the data of each MME
When the difference of propagation delay time is all larger than or is equal to delay threshold, the handover success rate of the TAU of the MME is obtained；
The processing module, be also used to determine it is described acquisition module obtain the MME TAU handover success rate and each
When the difference of the handover success rate of the TAU of MEE is respectively less than or is equal to success rate threshold value, exist by the MME and with the MME
The SGSN of mapping relations forms SGSN/MME POOL.
8. core net selection device according to claim 5, which is characterized in that the acquisition module is also used to handle mould
When block determines that the ID of the ID and the MME of the SGSN in the communication data are unsatisfactory for the preset condition, described in acquisition
The data transmission delay of communication data；
The acquisition module is also used to processing module and determines that the data transmission delay of the SGSN and the data of each SGSN pass
When the difference of defeated time delay is all larger than or is equal to delay threshold, the handover success rate of the RAU of the SGSN is obtained；
The processing module, be also used to determine it is described acquisition module obtain the SGSN RAU handover success rate with it is each
The difference of the handover success rate of the RAU of a SGSN be respectively less than or be equal to success rate threshold value when, by the SGSN and with it is described
There are the MME of mapping relations to form SGSN/MME POOL by SGSN.
9. a kind of network system characterized by comprising terminal device, base station and such as claim 5-8 are described in any item
Core net selection device.
10. a kind of computer storage medium, including instruction, when run on a computer, so that computer is executed as above-mentioned
The described in any item core network selection methods of claim 1-4.
11. a kind of core net selection device, comprising: communication interface, processor, memory, bus；Memory is calculated for storing
Machine executes instruction, and processor is connect with memory by bus, and when the operation of core net selection device, processor executes memory
The computer executed instructions of storage, so that core net selection device executes such as the described in any item cores of the claims 1-4
Network selection method.
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| CN112616166A (en) * | 2020-12-04 | 2021-04-06 | 中国联合网络通信集团有限公司 | Data processing method and device |
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