CN105472598B - A kind of solution LTE multimode terminals can not be anchored method, SGSN and the system of PDN Gateway - Google Patents
A kind of solution LTE multimode terminals can not be anchored method, SGSN and the system of PDN Gateway Download PDFInfo
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- CN105472598B CN105472598B CN201410467192.7A CN201410467192A CN105472598B CN 105472598 B CN105472598 B CN 105472598B CN 201410467192 A CN201410467192 A CN 201410467192A CN 105472598 B CN105472598 B CN 105472598B
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Abstract
The invention discloses a kind of method that solution LTE multimode terminals can not be anchored PDN Gateway, this method includes：When SGSN determines that the EPC capable fields that terminal reports are not 1, the IMEISV of terminal is obtained, and the characteristic information of the terminal is parsed according to the IMEISV；SGSN whether there is the characteristic information of the terminal obtained by the parsing according to the preset lane database of terminal problem type queries, if it is, the EPC capable fields of the terminal are set as 1.The present invention further simultaneously discloses a kind of SGSN and system realizing the method.
Description
Technical field
The present invention relates to mobile communication technology fields more particularly to a kind of solution long term evolution (LTE) multimode terminal can not
It is anchored the method, GPRS serving GPRS support nodes (SGSN) and system of Packet Data Network (PDN) gateway.
Background technology
Currently, in order to solve the problems, such as that LTE multimode terminals can not smoothly be moved to LTE network, the packet core of LTE/ evolution
Heart net (EPC) carries out intercommunication by Gn/Gp interfaces and 2G/3G ps domain core nets.In addition, passing through the SGSN in now being netted to 2G/3G
Upgrading so that the SGSN can support EPC related capabilities, such as：It can support the terminal network ability (MS that terminal reports
Network Capability) in EPC Capability fields, and according to the EPC capability fields by terminal
Request be routed to PDN Gateway (P-GW) etc..In this way, the SGSN can be selected according to the EPC abilities that LTE multimode terminals report
P-GW is selected, when LTE multimode terminals are accessed by 2G/3G, the P-GW being anchored in EPC carrys out accessing data service.2G/ after upgrading
3G/LTE network topological diagrams are as shown in Figure 1.
But it is found from current actual test：EPC abilities are supported in SGSN, and under 2G/3G network environments, are had
The LTE multimode terminals of a little models can successfully be anchored to the PDN Gateway (P-GW) in EPC；And the LTE multimodes of some models are whole
End leads to not successfully be anchored to P-GW due to its EPC reported to SGSN ability is incorrect etc..Simultaneously as wrong report
The LTE multimode terminals of EPC abilities largely all employ the baseband chip of Marvell, and these terminals considerable scale quilt
It is commercial so as to there are problems that this LTE multimode terminal quantity is more in existing net, finally affect user experience.
Invention content
To solve existing technical problem, a kind of solution LTE multimode terminals of offer of the embodiment of the present invention can not be anchored
Method, SGSN and the system of PDN Gateway.
An embodiment of the present invention provides a kind of method that solution LTE multimode terminals can not be anchored PDN Gateway, this method packets
It includes：
When SGSN determines that the EPC capable fields that terminal reports are not 1, the IMEISV of terminal is obtained, and according to described
IMEISV parses the characteristic information of the terminal；
SGSN is according to the preset lane database of terminal problem type queries with the presence or absence of the spy of the terminal obtained by the parsing
Reference ceases, if it is, the EPC capable fields of the terminal are set as 1.
Wherein, the characteristic information of the terminal includes：Terminal models TAC and terminal software version number SVN.
Wherein, the terminal problem type includes but not limited to：LTE multimode terminals report EPC abilities by mistake.
Preferably, this method further includes：A database is pre-set in network side, is recorded in the database different
The characteristic information of terminal problem type and terminal corresponding to each terminal problem type.
Preferably, this method further includes：
If the lane database, there is no the characteristic information of the terminal obtained by the parsing, the SGSN is by the end
End is anchored on Gateway GPRS Support Node GGSN.
Preferably, this method further includes：
If the lane database there is no the characteristic information of the terminal obtained by the parsing, described in the SGSN notices
Database adds the characteristic information of the terminal and terminal problem type in the database.
Preferably, this method further includes：
The database increases according to the information of operator's input or the content of modification record, the content packet of every record
It includes：The characteristic information of terminal problem type and terminal corresponding with terminal problem type.
The embodiment of the present invention, which additionally provides a kind of solution LTE multimode terminals, can not be anchored the SGSN, the SGSN of PDN Gateway
Including：Obtain parsing module and query processing module；Wherein,
The acquisition parsing module obtains terminal when for determining that the EPC capable fields that terminal reports are not 1
IMEISV, and parse according to the IMEISV characteristic information of the terminal；
The query processing module, for being obtained with the presence or absence of described according to the preset lane database of terminal problem type queries
The characteristic information for taking the terminal of parsing module parsing gained, when determination is, 1 is set as by the EPC capable fields of the terminal.
Preferably, the query processing module is additionally operable to determine the end that the lane database is not present obtained by the parsing
When the characteristic information at end, the terminal is anchored on GGSN.
Preferably, the query processing module is additionally operable to determine the end that the lane database is not present obtained by the parsing
When the characteristic information at end, notify the database by the characteristic information of the terminal and the addition of terminal problem type in database
In.
Wherein, different terminal problem types is recorded in the database and corresponding to each terminal problem type
The characteristic information of terminal.
The embodiment of the present invention additionally provides a kind of system that solution LTE multimode terminals can not be anchored PDN Gateway, the system packet
It includes：SGSN and terminal described above.
Preferably, which further includes：Database, for according to operator input information increase or modification record it is interior
Hold, the content of every record includes：The characteristic information of terminal problem type and terminal corresponding with terminal problem type.
The LTE multimode terminals provided in an embodiment of the present invention that solve can not be anchored method, SGSN and the system of PDN Gateway,
When SGSN determines that the EPC capable fields that terminal reports are not 1, the mobile station identification code software version of terminal is obtained
(International Mobile Equipment Identity software version, IMEIS V), and according to described
IMEISV parses the characteristic information of the terminal；It whether there is the solution according to the preset lane database of terminal problem type queries
The EPC capable fields of the terminal are then set as 1 by the characteristic information for analysing the terminal of gained if YES；Wherein, the end
End problem types include but not limited to：LTE multimode terminals report EPC abilities by mistake.As it can be seen that the embodiment of the present invention is solved from network side
LTE multimode terminals can not be anchored the problem of PDN Gateway.
In addition, the embodiment of the present invention need not modify to end side, such as：User is not needed to upgrade i.e. terminal
Can solve the problems, such as it is existing, and be not related to change 3GPP agreements, the change on SGSN is also little, and coverage is small, than
It is easier to realize.
Description of the drawings
In attached drawing (it is not necessarily drawn to scale), similar reference numeral phase described in different views
As component.Similar reference numerals with different letter suffix can indicate the different examples of similar component.Attached drawing with example and
Unrestricted mode generally shows each embodiment discussed herein.
Fig. 1 is the 2G/3G/LTE network topological diagrams after existing upgrading；
Fig. 2 is to solve LTE multimode terminals described in the embodiment of the present invention not being anchored the method implementation flow chart of PDN Gateway；
Fig. 3 is the structural schematic diagram of SGSN described in the embodiment of the present invention.
Specific implementation mode
The analysis found that can not be anchored to due to wrong report EPC abilities special existing for the LTE multimode terminals of PDN Gateway
Putting is：If some commercialization LTE multimode terminal has this, then same model and same software version number is all
Other-end all there is a problem of identical.Therefore,
In the embodiment of the present invention, when SGSN determines that the EPC capable fields that terminal reports are not 1, terminal is obtained
IMEISV, and parse according to the IMEISV characteristic information of the terminal；According to the preset data of terminal problem type queries
Ku Li if YES then sets the EPC capable fields of the terminal with the presence or absence of the characteristic information of the terminal obtained by the parsing
It is set to 1.In this way, terminal will be successfully anchored to PDN Gateway.
Wherein, the terminal problem type includes but not limited to：LTE multimode terminals report EPC abilities by mistake；The spy of the terminal
Reference ceases：Terminal models (TAC) and terminal software version number (SVN).
Below in conjunction with the accompanying drawings and specific embodiment invention is further described in detail.
Fig. 2 is to solve LTE multimode terminals described in the embodiment of the present invention not being anchored the method implementation flow chart of PDN Gateway,
As shown in Fig. 2, including：
Step 201：SGSN determines EPC capable fields that terminal reports when being 1, obtains the IMEISV of terminal, and according to
The IMEISV parses the characteristic information of the terminal；
Specifically, the EPC capable fields in the MS Network Capability that SGSN detection terminals report, if it is
1, it indicates that LTE multimode terminals correctly report EPC abilities, subsequent operation can be continued to execute, be finally successfully anchored to PDN Gateway；Such as
Fruit is not 1, i.e.,：If EPC capable fields are 0, Non-Access Stratum (NAS) message is sent to terminal, i.e.,：Identity request
(Identity request) message obtains the IMEISV of the terminal, wherein the requested body of identity request message
Part type (Identity type) is IMEISV.SGSN parses the TAC and SVN of terminal by the IMEISV got, described
IMEISV is made of 16 bit digitals, preceding 6 digit GC group connector model (TAC), and last 2 bit digital indicates the software version number of terminal
(SVN)。
Step 202：According to the preset lane database of terminal problem type queries with the presence or absence of the terminal obtained by the parsing
Characteristic information then follow the steps 203 if YES；
Specifically, according to terminal problem type, such as：LTE multimode terminals report EPC abilities by mistake, inquire preset lane database
With the presence or absence of the TAC and SVN of the terminal obtained by the parsing, if it is present illustrating that the terminal is to report the LTE of EPC abilities by mistake
One kind in multimode terminal, the EPC abilities that SGSN then corrects terminal automatically are 1, which will be successfully anchored to PDN nets
It closes, to solve the problems, such as that the LTE multimode terminals of wrong report EPC abilities can not be anchored PDN Gateway (P-GW).
Preferably, this method further includes：The database of terminal problem is pre-set in network side, is recorded in the database
Different terminal problem type, corresponding to each terminal problem type terminal characteristic information, i.e.,：TAC and SVN, the end
End problem types include but not limited to：LTE multimode terminals report EPC abilities by mistake；Specifically,
Here, it can lead to occur terminal problem according to having notified, such as：LTE multimode terminals report the various of EPC capability problems by mistake
The database of a terminal problem is arranged in network side by the TAC and SVN of terminal, such as：In the sgsn or it is separately provided an end
The database of end problem, record has different terminal problem types, corresponding to each terminal problem type in the database
The TAC and SVN of terminal.The content of every in database record is：Terminal problem type, counterpart terminal TAC and
SVN。
Wherein, the setting of the database need to ensure that the SGSN can inquire the database, access, i.e.,：It is right
Outer offer database query interface.
Further, since the terminal problem type includes a variety of, such as：Terminal reports " SRVCC to GERAN/UTRAN by mistake
Capability " abilities lead to single wireless voice calling continuity in VOLTE callings (Voice over LTE) calling
(SRVCC) disabler etc..Therefore, the embodiment of the present invention can also solve the solution of the TAC and SVN common problems for terminal
Method, to solve the common problem of most terminals.When practical application, it can be solved by parsing terminal models and software version number
The problem of terminal general character.Such as：Certain functions of network side can lead to certain model (TAC) and software version number in existing net
(SVN) there is more serious problem in business terminal.Although the problem is by the lack of standardization caused of Terminal Design, from end side
But it can not thoroughly solve these problems.Network side can be directed to these problems, according to the model (TAC) and software version number of terminal
(SVN), correlation function is selectively closed for terminal in network side, the tight of these terminals is solved in network side to realize
Weight problem.
Step 203：The EPC capable fields of the terminal are set as 1.
Specifically, if lane database there are the TAC of the terminal obtained by the parsing and SVN, by the EPC of the terminal
Capable field is set as 1 by 0 change.
As it can be seen that the embodiment of the present invention solves the problems, such as that LTE multimode terminals can not be anchored PDN Gateway from network side.In addition,
The embodiment of the present invention need not modify to end side, such as：Do not need user to terminal carry out upgrading can be solved existing deposit
The problem of, and be not related to change 3GPP agreements, the change on SGSN is also little, and coverage is small, is easier to realize.
Preferably, in one embodiment of the invention, this method step 202 further includes：If the lane database is not
There are the characteristic information of the terminal obtained by the parsing, illustrate that the terminal is 2G/3G terminals, then the SGSN will by existing procedure
The terminal is anchored on Gateway GPRS Support Node (GGSN).
Preferably, in one embodiment of the invention, this method step 202 further includes：If the lane database is not
There are the characteristic information of the terminal obtained by the parsing, illustrate that the terminal is LTE multimode terminals, but lane database does not preserve also
The characteristic information of the terminal, then the SGSN notify the database by the characteristic information of the terminal and terminal problem type,
I.e.：LTE multimode terminals report EPC abilities by mistake, and addition is in the database.
Preferably, in one embodiment of the invention, this method further includes：The database is according to operator's input
Information increases or the content of modification record, and the content of every record includes：Terminal problem type and with terminal problem type pair
The characteristic information for the terminal answered.
Here, operator can configure input relative recording information by foreground, and by database addition and modification, there are a certain
The characteristic information of the terminal of a or multiple terminal problem types.When discovery, certain commercialization LTE multimode terminal can not successfully be anchored to PDN
When gateway (P-GW), the problem of adding the terminal type, i.e.,：LTE multimode terminals report EPC abilities and corresponding terminal by mistake
In characteristic information to the database.
Wherein, it can be obtained by malfunction elimination, existing network termination test and terminal producer to approach such as operator's early warning
There is the characteristic information of the terminal of terminal problem.Such as：The record of addition or modification that operator inputs on foreground is as follows：Terminal
Problem types, such as：LTE multimode terminals report EPC abilities and the corresponding characteristic information for the terminal of the problem occur by mistake.
In addition, in the embodiment of the present invention, after operator finds terminal of problems, can be inputted by foreground need to be in number
According to the TAC and SVN of the terminal problem type, terminal added or changed in library, flexibility is larger；And the database manipulation only relates to
And database basic function operation (addition, modification), the signaling process that is related to are less, therefore the feasibility of the embodiment of the present invention compared with
It is high.
The embodiment of the present invention, which additionally provides a kind of solution LTE multimode terminals, can not be anchored the SGSN of PDN Gateway, such as Fig. 3 institutes
Show, the SGSN 30 includes：Obtain parsing module 301 and query processing module 302；Wherein,
The acquisition parsing module 301 obtains terminal when for determining that the EPC capable fields that terminal reports are not 1
IMEISV, and parse according to the IMEISV characteristic information of the terminal；
Specifically, the EPC obtained in the MS Network Capability that 301 detection terminal of parsing module reports
Capable field indicates that LTE multimode terminals correctly report EPC abilities, can continue to execute subsequent operation if it is 1, and finally succeed anchor
Surely PDN Gateway is arrived；If not 1, i.e.,：If EPC capable fields are 0, Non-Access Stratum (NAS) message is sent to terminal, i.e.,：
Identity request (Identity requ est) message obtains the IMEISV of the terminal, wherein the identity request message institute
The identity type (Identity type) of request is IMEISV.The parsing module 301 that obtains is solved by the IMEISV got
The TAC and SVN of terminal is precipitated, the IMEISV is made of 16 bit digitals, preceding 6 digit GC group connector model (TAC), last 2
The software version number (SVN) of digital representation terminal.
The query processing module 302, for whether there is institute according to the preset lane database of terminal problem type queries
The characteristic information for stating the terminal for obtaining the parsing gained of parsing module 301, when determination is, the EPC capable fields of the terminal are set
It is set to 1.
Specifically, according to terminal problem type, such as：LTE multimode terminals report EPC abilities by mistake, inquire preset lane database
With the presence or absence of the TAC and SVN of the terminal obtained by the parsing, if it is present illustrating that the terminal is to report the LTE of EPC abilities by mistake
One kind in multimode terminal, the query processing module 302 then automatically correct terminal EPC abilities be 1, the terminal will by
Work(is anchored to PDN Gateway, and the LTE multimode terminals to solve wrong report EPC abilities can not be anchored asking for PDN Gateway (P-GW)
Topic.
Here, it can lead to occur terminal problem according to having notified, such as：LTE multimode terminals report the various of EPC capability problems by mistake
The database of a terminal problem is arranged in network side by the TAC and SVN of terminal, such as：In the SGSN or it is separately provided one
The database of a terminal problem.
Wherein, record has different terminal problem types, corresponding to the end of each terminal problem type in the database
The TAC and SVN at end.The content of every in database record is：The TAC and SVN of terminal problem type, counterpart terminal.
Preferably, in an embodiment of the invention, the query processing module 302 is additionally operable to determine the database
In there is no when the characteristic information of the terminal obtained by the parsing, illustrate that the terminal is 2G/3G terminals, can be by existing procedure by institute
Terminal is stated to be anchored on GGSN.
Preferably, in an embodiment of the invention, the query processing module 302 is additionally operable to determine the database
In there is no when the characteristic information of the terminal obtained by the parsing, illustrate that the terminal is LTE multimode terminals, but lane database is also
The characteristic information for not preserving the terminal notifies the database by the characteristic information of the terminal and terminal problem type, i.e.,：
LTE multimode terminals report EPC abilities by mistake, and addition is in the database.
The embodiment of the present invention additionally provides a kind of system that solution LTE multimode terminals can not be anchored PDN Gateway, the system packet
It includes：SGSN and terminal described above.
As it can be seen that the embodiment of the present invention solves the problems, such as that LTE multimode terminals can not be anchored PDN Gateway from network side.In addition,
The embodiment of the present invention need not modify to end side, such as：Do not need user to terminal carry out upgrading can be solved existing deposit
The problem of, and be not related to change 3GPP agreements, the change on SGSN is also little, and coverage is small, is easier to realize.
Preferably, in an embodiment of the invention, which further includes：Database, for according to operator's input
Information increases or the content of modification record, and the content of every record includes：Terminal problem type and with terminal problem type pair
The characteristic information for the terminal answered.
Here, operator can configure input relative recording information by foreground, and by database addition and modification, there are a certain
The characteristic information of the terminal of a or multiple terminal problem types.When discovery, certain commercialization LTE multimode terminal can not successfully be anchored to PDN
When gateway (P-GW), the problem of adding the terminal type, i.e.,：LTE multimode terminals report EPC abilities and corresponding terminal by mistake
In characteristic information to the database.
Wherein, it can be obtained by malfunction elimination, existing network termination test and terminal producer to approach such as operator's early warning
There is the characteristic information of the terminal of terminal problem.Such as：The record of addition or modification that operator inputs on foreground is as follows：Terminal
Problem types：LTE multimode terminals wrong report EPC abilities, the corresponding characteristic information for the terminal of the problem occur.
In the embodiment of the present invention, after operator finds terminal of problems, can be inputted by foreground need to be in database
The TAC and SVN of the terminal problem type of middle addition or modification, terminal, flexibility are larger；And the database manipulation pertains only to count
It is less according to library basic function operation (addition, modification), the signaling process being related to, therefore the feasibility of the embodiment of the present invention is higher.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention can be used can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (13)
1. a kind of method for solving long term evolution LTE multimode terminals and can not being anchored Packet Data Network's PDN Gateway, which is characterized in that
This method includes：
When GPRS serving GPRS support nodes SGSN determines that the packet-based core networks EPC capable fields for the evolution that terminal reports are not 1, obtain
The mobile station identification code software version IMEISV of terminal, and parse according to the IMEISV characteristic information of the terminal；
Features of the SGSN according to the preset lane database of terminal problem type queries with the presence or absence of the terminal obtained by the parsing is believed
Breath, if it is, the EPC capable fields of the terminal are set as 1.
2. according to the method described in claim 1, it is characterized in that, the characteristic information of the terminal includes：Terminal models TAC and
Terminal software version number SVN.
3. according to the method described in claim 1, it is characterized in that, the terminal problem type includes：LTE multimode terminals are reported by mistake
EPC abilities.
4. method according to claim 1,2 or 3, which is characterized in that this method further includes：One is pre-set in network side
A database records different terminal problem types and the terminal corresponding to each terminal problem type in the database
Characteristic information.
5. method according to claim 1,2 or 3, which is characterized in that this method further includes：
If the lane database, there is no the characteristic information of the terminal obtained by the parsing, the SGSN is by the dead end anchor
Determine onto Gateway GPRS Support Node GGSN.
6. method according to claim 1,2 or 3, which is characterized in that this method further includes：
If there is no the characteristic information of the terminal obtained by the parsing, the SGSN to notify the data for the lane database
The characteristic information of the terminal and terminal problem type are added in the database in library.
7. according to the method described in claim 4, it is characterized in that, this method further includes：
The database increases according to the information of operator's input or the content of modification record, and the content of every record includes：Eventually
Hold problem types and the characteristic information of terminal corresponding with terminal problem type.
8. a kind of LTE multimode terminals that solve can not be anchored the SGSN of PDN Gateway, which is characterized in that the SGSN includes：Obtain solution
Analyse module and query processing module；Wherein,
The acquisition parsing module obtains the IMEISV of terminal when for determining that the EPC capable fields that terminal reports are not 1, and
The characteristic information of the terminal is parsed according to the IMEISV；
The query processing module, for being solved with the presence or absence of the acquisition according to the preset lane database of terminal problem type queries
The characteristic information for analysing the terminal of module parsing gained, when determination is, 1 is set as by the EPC capable fields of the terminal.
9. SGSN according to claim 8, which is characterized in that the query processing module is additionally operable to determine the data
The terminal is anchored on GGSN by Ku Li there is no when the characteristic information of the terminal obtained by the parsing.
10. SGSN according to claim 8, which is characterized in that the query processing module is additionally operable to determine the data
Ku Li there is no when the characteristic information of the terminal obtained by the parsing, notifying the database by the characteristic information of the terminal and
Terminal problem type is added in the database.
11. according to the SGSN described in any one of claim 8-10, which is characterized in that record different ends in the database
Hold problem types and the characteristic information of the terminal corresponding to each terminal problem type.
12. a kind of solving the LTE multimode terminals system that can not be anchored PDN Gateway, which is characterized in that the system includes：Right is wanted
Seek the SGSN and terminal described in any one of 8-11.
13. system according to claim 12, which is characterized in that the system further includes：Database, for according to operator
The information of input increases or the content of modification record, and the content of every record includes：Terminal problem type and and terminal problem
The characteristic information of the corresponding terminal of type.
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| CN103856962A (en) * | 2014-02-27 | 2014-06-11 | 大唐移动通信设备有限公司 | Access control method and device based on IMEI |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3917208A4 (en) * | 2019-02-15 | 2022-08-03 | Huawei Technologies Co., Ltd. | Communication processing method for terminal information and related device |
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