CN108990096A - NAS message processing method, system and the mobile terminal of mobile terminal - Google Patents
NAS message processing method, system and the mobile terminal of mobile terminal Download PDFInfo
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- CN108990096A CN108990096A CN201811016608.8A CN201811016608A CN108990096A CN 108990096 A CN108990096 A CN 108990096A CN 201811016608 A CN201811016608 A CN 201811016608A CN 108990096 A CN108990096 A CN 108990096A
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- downlink counter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
Abstract
The present invention relates to mobile communication technology fields, disclose NAS message processing method, system and the mobile terminal of a kind of mobile terminal.The NAS message processing method of the mobile terminal, comprising: integrity checking for the first time is carried out to received NAS message；When the failure of the integrity checking of NAS message, judge whether the downlink counter of NAS message is smaller than the downlink counter of the NAS message of last same sequence number；When the downlink counter for judging NAS message is smaller than the downlink counter of the NAS message of last same sequence number, confirm NAS message type whether in default NAS message Type Range；And when confirming that NAS message type is in default NAS message Type Range, integrity checking is carried out to NAS message again.Technical solution of the present invention avoids the case where mobile terminal does not abandon key message according to the NAS message integrity checking failure that NAS downlink counter sequence issues to network, improves network compatibility, stability and the user experience of mobile terminal.
Description
Technical field
The present invention relates to mobile communication technology field more particularly to NAS message processing method, the systems of a kind of mobile terminal
And mobile terminal.
Background technique
In field of wireless communication, NAS(Non-access stratum, Non-Access Stratum) for core net and user equipment ratio
Such as the signaling and data transmission between mobile terminal.NAS message segment transmissions: uplink NAS-messages (Uplink NAS
) and downlink NAS message (Downlink NAS count) count.The NAS Sequence of NAS count should be in UE and MME
Between exchange, after each new or retransmission NAS message protected by outbound security, if lower level instruction can not
RRC connection is established, then NAS count should be increased by 1 by sender.For example, network has issued continuous three wrapped to terminal
The NAS message of around, Downlink NAS count should be X, X+1, X+2.
But since Network Operator networks configure possible not perfect, Downlink in the NAS message that network is issued to terminal
NAS count is not in accordance with incremental sequence.It is given to for example, network sends continuous three wrapped around NAS message
Terminal, three NAS message Downlink NAS count are X, and X+2, X+1(X are sequence number), for preceding two message (X and X+
2), terminal can be according to integrity protection successfully resolved.Terminal receives Article 3 message (X+1), but the DL of Article 3 message
Count X+1 is smaller than the DL count X+2 of Article 2 message rather than incremental order, then terminal is to the complete of this message
Whole property protection check will fail, and the NAS message for causing network to issue will be dropped.For example, NAS message ACTIVATE_
DEDICATED_EPS_BEARER_CONTEXT_REQUEST is if it is the message of wrong sequence, then terminal abandons this message,
It is possible that request is established in the carrying that this message is video calling, it will cause visual telephone to fail, brought to user very bad
Experience.When the NAS message that network issues terminal is issued not in accordance with downlink counter sequence, Endpoint integrity is caused to be protected
Shield failure, so that the NAS message of some keys of lost terminal, leads to network compatibility, stability and the user's body of mobile terminal
It tests bad.
Summary of the invention
In consideration of it, the present invention provides NAS message processing method, system and the mobile terminal of a kind of mobile terminal, solve existing
Mobile lost terminal NAS message when thering is NAS message to issue not in accordance with downlink counter sequence and the net for leading to mobile terminal
The technical problem that network is compatible, stability and user experience are bad.
According to one embodiment of present invention, a kind of NAS message processing method of mobile terminal is provided, comprising: to reception
NAS message carry out integrity checking for the first time；When the failure of the integrity checking of NAS message, the downlink of NAS message is judged
It whether smaller than the downlink counter of the NAS message of last same sequence number counts；When the downlink counter ratio for judging NAS message
Whether the downlink counter hour of the NAS message of last same sequence number confirms NAS message type in default NAS message type
In range；And when confirming that NAS message type is in default NAS message Type Range, integrality is carried out to NAS message again
It checks.
Preferably, it is described again to NAS message carry out integrity checking after, further includes: when again to NAS message into
When row integrity checking fails, NAS message is abandoned.
Preferably, the NAS message processing method of the mobile terminal, further includes: when the downlink for judging NAS message
When counting bigger than the downlink counter of the NAS message of last same sequence number, NAS message is abandoned.
Preferably, the NAS message processing method of the mobile terminal, further includes: when confirmation NAS message type is not pre-
If when in NAS message Type Range, abandoning NAS message.
Preferably, the default NAS message type includes that dedicated bearer activates request, ESM information request, modification EPS to hold
Carry context request, attach request and identification request.
According to a further embodiment of the invention, a kind of NAS message processing system of mobile terminal is provided, comprising: first is complete
Whole property checks module, for carrying out integrity checking for the first time to received NAS message；Downlink counter judgment module, is used for
When integrity checking of the integrity check module for the first time to NAS message fails, the downlink counter of NAS message is judged
It is whether smaller than the downlink counter of the NAS message of last same sequence number；Type of message confirmation module, for working as the downlink chain
Road counts judgment module and judges the downlink counter of the downlink counter of NAS message than the NAS message of last same sequence number
Hour, confirm NAS message type whether in default NAS message Type Range；And second integrity check module, for working as
When type of message confirmation module confirmation NAS message type is in default NAS message Type Range, again to NAS message into
Row integrity checking.
Preferably, the NAS message processing system of the mobile terminal further includes message discard processing module, for working as institute
When stating the second integrity check module to NAS message progress integrity checking failure, NAS message is abandoned.
Preferably, the NAS message processing system of the mobile terminal further includes message discard processing module, for working as institute
It states downlink counter judgment module and judges the downlink of the downlink counter of NAS message than the NAS message of last same sequence number
Link counts big or works as type of message confirmation module confirmation NAS message type not in default NAS message Type Range
When, abandon NAS message.
Preferably, the default NAS message type includes that dedicated bearer activates request, ESM information request, modification EPS to hold
Carry context request, attach request and identification request.
Further embodiment according to the present invention, provides a kind of mobile terminal, and the mobile terminal includes above-mentioned mobile end
The NAS message processing system at end.
NAS message processing method, system and the mobile terminal of mobile terminal provided by the invention, comprising: to received NAS
Message carries out integrity checking for the first time；When the failure of the integrity checking of NAS message, the downlink counter of NAS message is judged
It is whether smaller than the downlink counter of the NAS message of last same sequence number；When judging the downlink counter of NAS message than last
With the downlink counter hour of the NAS message of sequence number, confirm NAS message type whether in default NAS message Type Range
It is interior；And when confirming that NAS message type is in default NAS message Type Range, integrality inspection is carried out to NAS message again
It looks into.The present invention is by carrying out downlink counter sequential decision and key message type decision to NAS message, to the network of judgement
Integrity checking twice is not carried out according to the NAS message that NAS downlink counter sequence issues, avoids mobile terminal to net
The case where network does not abandon key message according to the NAS message integrity checking failure that NAS downlink counter sequence issues,
Improve network compatibility, stability and the user experience of mobile terminal.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the flow diagram of the NAS message processing method of mobile terminal in one embodiment of the invention.
Fig. 2 is the flow diagram of the NAS message processing method of mobile terminal in another embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the NAS message processing system of mobile terminal in one embodiment of the invention.
Fig. 4 is the structural schematic diagram of the NAS message processing system of mobile terminal in another embodiment of the present invention.
Fig. 5 is the structural schematic diagram of mobile terminal in further embodiment of the present invention.
Specific embodiment
Further more detailed description is made to technical solution of the present invention with reference to the accompanying drawings and detailed description.Obviously, institute
The embodiment of description is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, is all answered
Belong to the scope of protection of the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in the present invention in conjunction with concrete condition
Concrete meaning.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Fig. 1 is the flow diagram of the NAS message processing method of mobile terminal in one embodiment of the invention.As schemed
Show, the NAS message processing method of the mobile terminal, comprising:
Step S101: integrity checking for the first time is carried out to received NAS message.
In the present embodiment, the mobile terminal can be any type of portable mobile communication equipment, such as intelligently
Mobile phone, tablet computer and smartwatch etc..The mobile terminal receives mobile network's by built-in wireless communication module
NAS(Non-access stratum, Non-Access Stratum) after message, integrity checking for the first time is carried out to NAS message.
Step S102: when the failure of the integrity checking of NAS message, judge whether the downlink counter of NAS message compares
The downlink counter of the NAS message of last same sequence number is small.
When the failure of the integrity checking of NAS message, determine whether current NAS message is due to not according to NAS downlink
Integrity checking fails caused by link counting sequence issues, and whether the further downlink counter for judging NAS message
Downlink counter than the NAS message of last same sequence number is small.When judging the downlink counter of NAS message whether than last
With the downlink counter hour of the NAS message of sequence number, determine whether current NAS message is due to not according to NAS downlink
What link counting sequence issued；When judging the downlink counter of NAS message whether under the NAS message than last same sequence number
When line link counts big, determine that current NAS message is not to be due to not issuing according to NAS downlink counter sequence, it can
Directly abandon current NAS message.
Step S103: when judging the downlink of the downlink counter of NAS message than the NAS message of last same sequence number
Hour is counted, confirms NAS message type whether in default NAS message Type Range.
When the downlink counter for judging NAS message is smaller than the downlink counter of the NAS message of last same sequence number,
Determine whether current NAS message is to further confirm that NAS message due to not issuing according to NAS downlink counter sequence
Whether type is in default NAS message Type Range.The default NAS message Type Range can be previously according to critical network
Communications service and users ' individualized requirement are configured, and usually configurable includes dedicated bearer activation request (ACTIVATE_
DEDICATED_EPS_BEARER_CONTEXT_REQUEST), attach request (ATTACH_ACCEPT), ESM information request
(ESM_INFORMATION_REQUEST), EPS bearer context request (MODIFY_EPS_BEARER_CONTEXT_ is modified
REQUEST) and (IDENTITY_REQUEST) is requested in identification.By confirmation NAS message type whether in default NAS message type
In range, can convenient and efficient, accurately determine whether current NAS message is key message.It can be into for the key message of judgement
The processing of one step, and the non-critical information of judgement can be abandoned directly.
Step S104: when confirming that NAS message type is in default NAS message Type Range, NAS message is carried out again
Integrity checking.
In the present embodiment, when confirming that NAS message type is in default NAS message Type Range, determine that current NAS disappears
Breath is key message, carries out integrity checking to NAS message again, is sentenced by carrying out downlink counter sequence to NAS message
Fixed and key message type decision does not carry out the network of judgement according to the NAS message that NAS downlink counter sequence issues
It is complete to avoid the NAS message that mobile terminal does not issue network according to NAS downlink counter sequence for integrity checking twice
The case where whole property inspection fails and abandons key message, improves network compatibility, stability and the user experience of mobile terminal.
Fig. 2 is the flow diagram of the NAS message processing method of mobile terminal in another embodiment of the present invention.As schemed
Show, the NAS message processing method of the mobile terminal, comprising:
Step S201: integrity checking for the first time is carried out to received NAS message.
Step S202: when the failure of the integrity checking of NAS message, judge whether the downlink counter of NAS message compares
The downlink counter of the NAS message of last same sequence number is small.
Step S203: when judging the downlink of the downlink counter of NAS message than the NAS message of last same sequence number
Hour is counted, confirms NAS message type whether in default NAS message Type Range；And
Step S204: when confirming that NAS message type is in default NAS message Type Range, NAS message is carried out again complete
Property inspection.
Step S205: when judging the downlink of the downlink counter of NAS message than the NAS message of last same sequence number
When counting big, NAS message is abandoned.
Step S206: when confirming NAS message type not in default NAS message Type Range, NAS message is abandoned.
Step S207: when carrying out integrity checking failure to NAS message again, NAS message is abandoned.
In the present embodiment, when judging the downlink of the downlink counter of NAS message than the NAS message of last same sequence number
When link counts big, determine that current NAS message is not to be due to not issuing according to NAS downlink counter sequence, it can be straight
It connects and abandons current NAS message.When confirming NAS message type not in default NAS message Type Range, current NAS is determined
Message and non-critical information, can directly abandon NAS message.When carrying out integrity checking failure to NAS message again, abandon
NAS message.By carrying out downlink counter sequential decision and key message type decision to NAS message, to the network of judgement
Integrity checking twice is not carried out according to the NAS message that NAS downlink counter sequence issues, avoids mobile terminal to net
The case where network does not abandon key message according to the NAS message integrity checking failure that NAS downlink counter sequence issues,
Improve network compatibility, stability and the user experience of mobile terminal.
Referring to Fig. 3, on the basis of above method embodiment, another embodiment of the present invention also provides a kind of mobile terminal
NAS message processing system.The NAS message processing system 100 of the mobile terminal, including the first integrity check module 10,
Downlink counter judgment module 20, type of message confirmation module 30 and the second integrity check module 40.
In the present embodiment, the mobile terminal can be any type of portable mobile communication equipment, such as intelligently
Mobile phone, tablet computer and smartwatch etc..The mobile terminal receives mobile network's by built-in wireless communication module
NAS(Non-access stratum, Non-Access Stratum) after message, first integrity check module 10 carries out NAS message
Integrity checking for the first time.
When the failure of the integrity checking of the NAS message of first integrity check module 10, current NAS message is determined
It whether is due to integrity checking failure caused by not issued according to NAS downlink counter sequence, the downlink chain
Road count judgment module 20 further judge NAS message downlink counter whether than last same sequence number NAS message
Downlink counter is small.When whether the downlink counter judgment module 20 judges the downlink counter of NAS message than upper
The downlink counter hour of the NAS message of a same sequence number determines whether current NAS message is due to not according under NAS
What line link counting sequence issued；When the downlink counter judgment module 20 judges that the downlink counter of NAS message is
When the downlink counter of the no NAS message than last same sequence number is big, determine current NAS message not be due to not according to
NAS downlink counter sequence issues, and can directly abandon current NAS message.
When the downlink counter judgment module 20 judges the downlink counter of NAS message than last same sequence number
The downlink counter hour of NAS message determines whether current NAS message is due to suitable not according to NAS downlink counter
What sequence issued, whether the type of message confirmation module 30 further confirms that NAS message type in default NAS message Type Range
It is interior.The default NAS message Type Range of the type of message confirmation module 30 can be previously according to critical network communication
Service and users ' individualized requirement are configured, and usually configurable includes dedicated bearer activation request (ACTIVATE_
DEDICATED_EPS_BEARER_CONTEXT_REQUEST), attach request (ATTACH_ACCEPT), ESM information request
(ESM_INFORMATION_REQUEST), EPS bearer context request (MODIFY_EPS_BEARER_CONTEXT_ is modified
REQUEST) and (IDENTITY_REQUEST) is requested in identification.NAS message class is confirmed by the type of message confirmation module 30
Type can convenient and efficient, accurately determine whether current NAS message is key message whether in default NAS message Type Range.
The key message determined for the type of message confirmation module 30 can be further processed, and confirm mould for the type of message
The non-critical information that block 30 determines can be abandoned directly.
In the present embodiment, when the type of message confirmation module 30 confirmation NAS message type is in default NAS message type
When in range, current NAS message is determined for key message, second integrity check module 40 again carries out NAS message
Integrity checking carries out downlink to NAS message by downlink counter judgment module 20, type of message confirmation module 30
Counting sequence judgement, key message type decision, the network determined by 40 Duis of the second integrity check module is not according to NAS
The NAS message that downlink counter sequence issues carries out integrity checking twice, avoid mobile terminal to network not according to
The case where NAS message integrity checking that NAS downlink counter sequence issues fails and abandons key message, improves movement
Network compatibility, stability and the user experience of terminal.
Fig. 4 is the structural schematic diagram of the NAS message processing system of mobile terminal in another embodiment of the present invention.As schemed
Show, the NAS message processing system 100 of the mobile terminal, including the judgement of the first integrity check module 10, downlink counter
Module 20, type of message confirmation module 30, the second integrity check module 40 and message discard processing module 50.
In the present embodiment, when the downlink counter judgment module 20 judges the downlink counter ratio of NAS message
When the downlink counter of the NAS message of last same sequence number is big, determining that current NAS message is not is due to not according to NAS
Downlink counter sequence issues, and the message discard processing module 50 can directly abandon NAS message.When the type of message
When confirmation module 30 confirms NAS message type not in default NAS message Type Range, current NAS message and non-key is determined
Information, the message discard processing module 50 can directly abandon NAS message.When second integrity check module 40 is to NAS
When message carries out integrity checking failure, the message discard processing module 50 can directly abandon NAS message.
In the present embodiment, disappeared by the type of message confirmation module 30 and the second integrity check module 40 to NAS
Breath carries out downlink counter sequential decision and key message type decision, by second integrity check module 40 to sentencing
Fixed network does not carry out integrity checking twice according to the NAS message that NAS downlink counter sequence issues, and avoids movement
Terminal does not abandon crucial letter according to the NAS message integrity checking failure that NAS downlink counter sequence issues to network
The case where breath, improves network compatibility, stability and the user experience of mobile terminal.
Fig. 5 is the structural schematic diagram of mobile terminal in further embodiment of the present invention.As shown, the mobile terminal
200 include the NAS message processing system 100 of mobile terminal described in above-described embodiment, by carrying out downlink chain to NAS message
Road counting sequence determines and key message type decision, does not issue according to NAS downlink counter sequence to the network of judgement
NAS message carry out integrity checking twice, it is suitable not according to NAS downlink counter to network to avoid mobile terminal 200
The case where NAS message integrity checking that sequence issues fails and abandons key message, improves the Web-compatible of mobile terminal 200
Property, stability and user experience.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The descriptions such as example " or " some examples " mean particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are different
Surely identical embodiment or example is referred to.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in one or more embodiment or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of NAS message processing method of mobile terminal characterized by comprising
Integrity checking for the first time is carried out to received NAS message；
When the failure of the integrity checking of NAS message, judge the downlink counter of NAS message whether than last same sequence number
The downlink counter of NAS message is small；
When the downlink counter for judging NAS message is smaller than the downlink counter of the NAS message of last same sequence number, confirmation
Whether NAS message type is in default NAS message Type Range；And
When confirming that NAS message type is in default NAS message Type Range, integrity checking is carried out to NAS message again.
2. the NAS message processing method of mobile terminal according to claim 1, which is characterized in that described again to NAS
Message carries out after integrity checking, further includes: when carrying out integrity checking failure to NAS message again, abandons NAS and disappears
Breath.
3. the NAS message processing method of mobile terminal according to claim 1, which is characterized in that further include: work as judgement
When the downlink counter of NAS message is bigger than the downlink counter of the NAS message of last same sequence number, NAS message is abandoned.
4. the NAS message processing method of mobile terminal according to claim 1, which is characterized in that further include: work as confirmation
When NAS message type is not in default NAS message Type Range, NAS message is abandoned.
5. the NAS message processing method of mobile terminal according to claim 1, which is characterized in that the default NAS message
Type includes that dedicated bearer activation request, ESM information request, modification EPS bearer context request, attach request and identification are asked
It asks.
6. a kind of NAS message processing system of mobile terminal characterized by comprising
First integrity check module, for carrying out integrity checking for the first time to received NAS message；
Downlink counter judgment module, for being lost when integrity checking of the integrity check module for the first time to NAS message
When losing, judge whether the downlink counter of NAS message is smaller than the downlink counter of the NAS message of last same sequence number；
Type of message confirmation module, for judging the downlink counter of NAS message when the downlink counter judgment module
Than the downlink counter hour of the NAS message of last same sequence number, confirm NAS message type whether in default NAS message class
Within the scope of type；And
Second integrity check module, for when type of message confirmation module confirmation NAS message type is in default NAS message
When in Type Range, integrity checking is carried out to NAS message again.
7. the NAS message processing system of mobile terminal according to claim 6, which is characterized in that further include that message abandons
Processing module, for abandoning NAS and disappearing when second integrity check module carries out integrity checking failure to NAS message
Breath.
8. the NAS message processing system of mobile terminal according to claim 6, which is characterized in that further include that message abandons
Processing module, for judging the downlink counter of NAS message than last same sequence when the downlink counter judgment module
Number NAS message downlink counter it is big or when type of message confirmation module confirmation NAS message type is not default
When in NAS message Type Range, NAS message is abandoned.
9. the NAS message processing system of mobile terminal according to claim 6, which is characterized in that the default NAS message
Type includes that dedicated bearer activation request, ESM information request, modification EPS bearer context request, attach request and identification are asked
It asks.
10. a kind of mobile terminal, which is characterized in that the mobile terminal includes such as the described in any item movements of claim 6 to 9
The NAS message processing system of terminal.
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| CN201811016608.8A CN108990096B (en) | 2018-09-03 | 2018-09-03 | NAS message processing method and system of mobile terminal and mobile terminal |
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| CN201811016608.8A CN108990096B (en) | 2018-09-03 | 2018-09-03 | NAS message processing method and system of mobile terminal and mobile terminal |
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| CN108990096B (en) | 2021-07-06 |
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