CN106455043A - VoLTE user state detecting method, VoLTE user state detecting device and SBC - Google Patents
VoLTE user state detecting method, VoLTE user state detecting device and SBC Download PDFInfo
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- CN106455043A CN106455043A CN201510485803.5A CN201510485803A CN106455043A CN 106455043 A CN106455043 A CN 106455043A CN 201510485803 A CN201510485803 A CN 201510485803A CN 106455043 A CN106455043 A CN 106455043A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/02—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a VoLTE user state detecting method, a VoLTE user state detecting device and an SBC. The VoLTE user state detecting method comprises the steps of modifying a survival period time length T1 transmitted from an IP multimedia subsystem (IMS) to a re-registration period time length T2 by session border control equipment (SBC), and transmitting T2 to user terminal; receiving re-registering request information which is transmitted by the user terminal according to a period of T2, and transmitting the re-registering request information to the IMS according to a period of T1. The VoLTE user state detecting method, the VoLTE user state detecting device and the SBC have advantages of optimizing survival time which is transmitted by a network to a user by the SBC, shortening detecting period for the user state, ensuring user state authenticity on the condition that a burden of the IMS network does not increase, obtaining smooth calling, and realizing domain selection between the VoLTE and a 2G/3G network.
Description
Technical field
The present invention relates to LTE technical field, more particularly, to a kind of VoLTE User Status detection
Method and device, SBC.
Background technology
Before accepting the service of LTE voiceband user, IMS user is mainly connect using fixing packet
Enter mode, such as xDSL accesses etc..The data cube computation based on packet net for the user, using data even
Connect the IP address distributed when setting up and be registered to IMS network.In order to be able to accurately be routed to called use
Family terminal, IMS needs to safeguard the connection status of user.When user's initial registration is to IMS, IMS
The re-register cycle of core net instruction user in the registration response.Session Edge position control equipment SBC
This re-register cycle can be forwarded to user, then the user terminal cycle is to IMS network initiation re-injection
Volume, the User Status that IMS network is stored then are updated according to registration message.In re-register
Then user is login state to receive re-register message in cycle, does not receive, judges and change use
Family is exit state.
Technology is that IMS network registers the connection status of detection user, session by the cycle at present
Edge position control equipment SBC only forwards to user and internetwork registration request and response and does not process,
Simultaneously be avoid excessively frequently registration message bring pressure to network, registration period is set to
3600 seconds.Stablize because fixing IP accesses passage, do not have signal to cover strong and weak variation issue,
Therefore to safeguard that the fixing state accessing IMS user is feasible in this way.
With the quickening of LTE deployment progress, accelerate to advance 2G/3G speech business to LTE
The migration of network.The target protocol that industry realizes LTE speech business is IMS scheme, i.e. 3GPP
The VoLTE scheme of standard definition.LTE user, after Deta bearer is set up in EPS attachment, is led to
Cross and be registered to IMS network acquisition voice communications services, and continue prior art and pass through user
Cycle re-register message realizes the pattern of User Status management.
Cover imperfection because LTE introduces initial stage wireless network, terminal can be according to network signal
Intensity selects to be attached to LTE or 2G/3G network, when therefore VoLTE user does called,
IMS network needs there is accurate judgement to the login state of user, then determines call routing
Carry out calling called subscriber to VoLTE domain or 2G/3G domain.Now prior art exists
Problems with：The User Status update cycle is long, may result in length during LTE is wireless disconnecting
Reach the IMS vacation login state of nearly a hour it is impossible to paging more cannot be directed to the true of user to user
Real state other approach such as provide 2G/3G circuit domain to continue.
For example, when user adopts SRLTE terminal, terminal list is registered, and is determined according to signal intensity
Surely it is registered to VoLTE or 2G/3G circuit domain, when LTE covers bad, 2G/3G can be registered to
Network but cannot actively complete VoLTE nullify, user is false login state in VoLTE domain.
When user adopts SVLTE terminal, it is registered to VoLTE and 2G/3G circuit domain, LTE simultaneously
Nullify it is impossible to actively complete VoLTE when covering bad, user is false registration shape in VoLTE
State.When VoLTE user does called, IMS can be routed calls to according to user registration state
Or 2G/3G circuit domain, for the user of false login state, mistake IMS can be routed calls to
Lead to not be addressed to user, or be routed to 2G/3G circuit domain user cannot be addressed to changes
When lead to the growth of time delay that continues.
Content of the invention
The technical problem to be solved in the present invention is that existing User Status maintenance scheme cannot guarantee
The verity of VoLTE User Status.
According to an aspect of the present invention, a kind of VoLTE User Status detection method is proposed, including：
Duration life cycle that IP Multimedia System IMS is issued by session Edge position control equipment SBC
T1 is revised as re-register cycle duration T2, and described T2 is handed down to user terminal；Described
SBC receives the re-register request message that described user terminal is sent for the cycle with described T2, and
Described re-register request message is sent for the cycle to described IMS with described T1.
According to one embodiment of the method for the invention, further, if receiving re-injection
After volume request message, do not receive, through described T2, the re-register request that described user terminal sends
Message, then described SBC judge that described user terminal occurs connecting fault, and to described IMS
Initiate user log off request.
According to one embodiment of the method for the invention, further, described IMS completes
Send 200OK message to described SBC after terminal authentication, identify described user terminal and register
Work(, and notify home signature user server HSS to identify described user terminal state for registration
State；Wherein, the value of the period field in the Contact header field of described 200OK message is T1.
According to one embodiment of the method for the invention, further, described SBC is by 200OK
The value of the described period field in message is revised as T2, and 200OK message is sent to described
User terminal.
According to one embodiment of the method for the invention, further, described user terminal receives
After 200OK message, re-register request message is initiated for the cycle to described SBC with described T2；
Described SBC responds described re-register request message and safeguards the login state of described user terminal.
According to one embodiment of the method for the invention, further, receive re-register please
After seeking message, do not receive, through described T2, the re-register request message that described user terminal sends,
Then described SBC sends Register message to described IMS and nullifies described user terminal, wherein,
Period field in described Register message is 0, and notifies described HSS to identify described user
The SOT state of termination is exit state.
According to a further aspect in the invention it is also proposed that a kind of VoLTE User Status detection means,
Including：Modification unit, for duration life cycle issuing IP Multimedia System IMS
T1 is revised as re-register cycle duration T2；Transmit-Receive Unit, for being handed down to user by described T2
Terminal, receives the re-register request message that described user terminal is sent for the cycle with described T2,
And described re-register request message is sent for the cycle to described IMS with described T1.
According to one embodiment of the method for the invention, further, Condition Monitoring Unit, uses
In after receiving re-register request message, do not receive described user terminal through described T2 and send out
The re-register request message sent, then judge that described user terminal occurs connecting fault；Described transmitting-receiving
Unit is used for initiating user log off request to described IMS.
According to one embodiment of the method for the invention, further, described Transmit-Receive Unit is used for
The 200OK message that described IMS sends, mark is received after described IMS completes terminal authentication
Described user terminal succeeds in registration, and notifies home signature user server HSS to identify described use
The family SOT state of termination is registration state；Wherein, in the Contact header field of described 200OK message
The value of period field is T1.
According to one embodiment of the method for the invention, further, described modification unit is used for
The value of the period field in 200OK message is revised as T2；Described Transmit-Receive Unit is used for 200
OK message sends to described user terminal.
Described Transmit-Receive Unit is used for, after described user terminal receives 200OK message, receiving institute
State the re-register request message that user terminal is sent for the cycle with described T2；Described status monitoring
Unit is used for the login state responding described re-register request message and safeguarding described user terminal.
According to one embodiment of the method for the invention, further, described Transmit-Receive Unit is used for
After receiving re-register request message, do not receive what described user terminal sent through described T2
Re-register request message, then send Register message to described IMS and nullify described user terminal,
Wherein, the period field in described Register message is 0, and notifies described HSS mark institute
Stating user terminal state is exit state.
A kind of session Edge position control equipment SBC, including：VoLTE user's shape as above
State detection means.
Compared with prior art, duration life cycle that IMS is issued by the present invention by SBC
T1 is revised as re-register cycle duration T2, and T2 is handed down to user terminal, user terminal with
T2 is the cycle to send re-register request message to SBC, and SBC was turned to IMS with T1 for the cycle
Send out re-register request message.Therefore, when SBC optimizes the existence that network issues to user terminal
Between, shorten the detection cycle of User Status, can be in the situation not increasing IMS network burden
Down it is ensured that the verity of User Status, it is easy to calling smoothly, realizes in VoLTE and 2G/3G
Internetwork domain selects.
By the detailed description to the exemplary embodiment of the present invention referring to the drawings, the present invention
Further feature and its advantage will be made apparent from.
Brief description
Constitute the Description of Drawings of the part embodiments of the invention of description, and together with saying
Bright book is used for explaining the principle of the present invention together.
Referring to the drawings, according to detailed description below, the present invention can be more clearly understood from,
Wherein：
Fig. 1 is that the flow process of an embodiment of VoLTE User Status detection method of the present invention is shown
It is intended to.
Fig. 2 is the flow process of another embodiment of VoLTE User Status detection method of the present invention
Schematic diagram.
Fig. 3 is that the signaling of an embodiment of VoLTE User Status detection method of the present invention is handed over
Mutually schematic diagram.
Fig. 4 is showing of a specific embodiment of VoLTE User Status detection method of the present invention
It is intended to.
Fig. 5 is the structure chart of an embodiment of VoLTE User Status detection means of the present invention.
Fig. 6 is the structure of another embodiment of VoLTE User Status detection means of the present invention
Figure.
Specific embodiment
To describe the various exemplary embodiments of the present invention now with reference to accompanying drawing in detail.It should be noted that
Arrive：Unless specifically stated otherwise, the part otherwise illustrating in these embodiments and the phase of step
Arrangement, numerical expression and numerical value are not limited the scope of the invention.
Simultaneously it should be appreciated that for the ease of description, the chi of the various pieces shown in accompanying drawing
Very little is not to draw according to actual proportionate relationship.
Description only actually at least one exemplary embodiment is illustrative below, certainly
Not as any restriction to the present invention and its application or use.
May not make in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Thin discussion, but in the appropriate case, described technology, method and apparatus should be considered to authorize to be said
A part for bright book.
In all examples with discussion shown here, any occurrence should be construed as merely
Exemplary, not as restriction.Therefore, the other examples of exemplary embodiment can have
There are different values.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore,
Once being defined in a certain Xiang Yi accompanying drawing, then do not need it is carried out in subsequent accompanying drawing
Discussed further.
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with tool
Body embodiment, and referring to the drawings, the present invention is described in more detail.
Fig. 1 is that the flow process of an embodiment of VoLTE User Status detection method of the present invention is shown
It is intended to.The method comprises the following steps：
In step 110, a length of T1 during IP Multimedia System IMS instruction user life cycle,
And user duration life cycle T1 is issued to session Edge position control equipment SBC.
Wherein, duration life cycle T1 can be for 3600 seconds it is also possible to tool according to operator
Body situation is configured.
In step 120, duration T1 life cycle that IMS issues is revised as re-register by SBC
Cycle duration T2, and re-register cycle duration T2 is handed down to user terminal.
Wherein, re-register cycle duration T2 can configure, for example, it is possible to be 180 seconds.
In step 130, user terminal sends re-register request message for the cycle to SBC with T2.
In step 140, SBC sends re-register request message for the cycle to IMS with T1.
In this embodiment, when user logs in registration for the first time, by SBC, IMS is issued
Life cycle, duration T1 was revised as re-register cycle duration T2, and by re-register cycle duration T2
It is handed down to user terminal, user terminal sends re-register request message for the cycle to SBC with T2,
SBC sends re-register request message for the cycle to IMS with T1.Therefore, SBC optimizes net
The life span that network issues to user terminal, shortens the detection cycle of User Status, Neng Gou
It is ensured that the verity of User Status in the case of not increasing IMS network burden, it is easy to call suitable
Profit, realizes selecting in the internetwork domain of VoLTE and 2G/3G.
Fig. 2 is the flow process of another embodiment of VoLTE User Status detection method of the present invention
Schematic diagram.
In step 210, a length of T1 during IMS instruction user life cycle, and user is survived
Cycle duration T1 is issued to SBC.
Wherein, duration life cycle T1 can be for 3600 seconds it is also possible to tool according to operator
Body situation is configured.
In step 220, duration T1 life cycle that IMS issues is revised as re-register by SBC
Cycle duration T2, and re-register cycle duration T2 is handed down to user terminal.
Wherein, re-register cycle duration T2 can configure, for example, it is possible to be 180 seconds.
In step 230, SBC, after receiving re-register request message, judges to use through T2
Whether family terminal sends re-register request message.If so, then execution step 240, otherwise, hold
Row step 250.
In step 240, SBC sends re-register request message for the cycle to IMS with T1.
In step 250, judge that user terminal occurs connecting fault, and initiate user's note to IMS
Pin request.
In step 260, IMS judges whether to receive re-register request message through T1.If so,
Then execution step 270, otherwise, execution step 280.
In step 270, there is not connecting fault, HSS identifying subscriber terminal state in user terminal
For registering state.
In step 280, judge that user terminal occurs connecting fault, HSS identifying subscriber terminal shape
State is exit state.
In this embodiment, greatly shorten the detection time of user's connecting fault, in 4G network
Network storage User Status can be effectively improved consistent with user's time of day when covering bad
Property, it is to avoid user is in false login state for a long time.And, the present invention does not have to IMS equipment
What's new and the pressure of Message Processing.
Fig. 3 is that the signaling of an embodiment of VoLTE User Status detection method of the present invention is handed over
Mutually schematic diagram.
In step 301, VoLTE user initiates registration request Register.
In step 302, SBC is transmitted to IMS registration request Register.
In step 303, IMS initiates 401 authentication challenges to not protected Register message,
Require to VoLTE subscription authentication.
In step 304, SBC is transmitted to VoLTE user 401 challenges.
In step 305, VoLTE user detects the legitimacy of received authentication challenge first,
VoLTE user sends second registration request Register carrying authentication challenge response.
In step 306, SBC is transmitted to core net the Register responding with authentication challenge.
In step 307, after IMS completes terminal authentication, return 200OK and succeed in registration response,
Wherein carry period field in Contact header field, period field can be user's life span word
Section expires, generally arranging life span in current network is 3600 seconds.Home signature user
Server HSS mark VoLTE User Status are registration state.
In step 308, SBC is the expires of the Contact header field in 200OK response message
Field is changed to T2 according to demand, and forwards 200OK to respond to VoLTE user.Wherein,
Re-register cycle T 2 can configure, for example, it is possible to be 180 seconds.
In step 309-312, VoLTE user according to the re-register cycle duration T2 of instruction to
SBC initiates re-register request, and SBC responds the login state that this is asked and safeguards user.
In step 313-315, then, SBC turns life span T1 of IMS instruction to IMS
The re-register message at hair family, it is registration state that HSS continues record user.
' -312 ' in step 309, SBC does not receive VoLTE in re-register T2 cycle time
The re-register request of user, judges VoLTE user for connecting fault, initiates expires to IMS
Field is 0 Register message logging off users, and home signature user server HSS modification is used
Family state is to nullify state.
In this embodiment, during the registration of user's first login, the registration that SBC issues core net
Life span T1 in success response is revised as desired registration period T2, between south orientation and user
Using the new cycle, between north orientation and core net, adopt former registration period, and in south orientation registration period
User log off request can be initiated to core net during the re-register message not receiving user in the time,
User Status are revised as not registered state.Greatly shorten the detection time of user's connecting fault,
Network storage User Status and user's time of day can be effectively improved when the 4G network coverage is bad
Concordance, it is to avoid user is in false login state for a long time.And, the present invention sets to IMS
The standby pressure not having what's new and Message Processing.
Fig. 4 is a specific embodiment of the present invention, and for example, 2G/3G is talking about in operator
When sound business moves to VoLTE, the north orientation re-register cycle of setting SBC and IMS network side
For 3600 seconds, the re-register cycle between SBC and south orientation user terminal was 180 seconds.LTE believes
When number covering bad or EPS connecting fault, IMS network detect in 180 seconds user connect former
Barrier, and ID for exit state so that network can be true according to VoLTE user
Real login state is routed to user, solves asking of existing network technology vacation login state overlong time
Topic.
In this embodiment, greatly shorten the detection time of user's connecting fault, in 4G network
Network storage User Status can be effectively improved consistent with user's time of day when covering bad
Property, it is to avoid user is in false login state for a long time.And, the present invention does not have to IMS equipment
What's new and the pressure of Message Processing.
Fig. 5 is that the flow process of an embodiment of VoLTE User Status detection means of the present invention is shown
It is intended to.This device includes：Modification unit 510, Transmit-Receive Unit 520, wherein：
Modification unit 510, duration T1 life cycle for issuing IMS is revised as re-injection
Volume cycle duration T2.
Wherein, a length of T1 during IP Multimedia System IMS instruction user life cycle, and will
User duration life cycle T1 is issued to session Edge position control equipment SBC.Life cycle duration
T1 can be for 3600 seconds it is also possible to be configured according to the concrete condition of operator.Re-register
Cycle duration T2 can configure, for example, it is possible to be 180 seconds.
Transmit-Receive Unit 520, for re-register cycle duration T2 is handed down to user terminal, with
T2 be cycle receive user terminal send re-register request message, and with T1 for the cycle to
IMS forwards re-register request message.
In this embodiment, when user logs in registration for the first time, by SBC, IMS is issued
Life cycle, duration T1 was revised as re-register cycle duration T2, and by re-register cycle duration T2
It is handed down to user terminal, user terminal sends re-register request message for the cycle to SBC with T2,
SBC forwards re-register request message for the cycle to IMS with T1.Therefore, SBC optimizes net
The life span that network issues to user terminal, shortens the detection cycle of User Status, Neng Gou
It is ensured that the verity of User Status in the case of not increasing IMS network burden, it is easy to call suitable
Profit, realizes selecting in the internetwork domain of VoLTE and 2G/3G.
Fig. 6 is the flow process of another embodiment of VoLTE User Status detection means of the present invention
Schematic diagram.This returning apparatus includes changing unit 610, Transmit-Receive Unit 620, Condition Monitoring Unit
630, wherein：
Duration T1 life cycle that IMS issues is revised as the re-register cycle by modification unit 610
Duration T2.
Wherein, Transmit-Receive Unit 620 receives the 200 of IMS transmission after IMS completes terminal authentication
OK message, identifying subscriber terminal succeeds in registration, and notifies home signature user server HSS
Identifying subscriber terminal state is registration state.
Period field, instruction user existence week is carried in the Contact header field of 200OK message
User duration life cycle T1 is issued to session Edge position control equipment by a length of T1 during the phase, IMS
SBC.Life cycle, duration T1 can be for 3600 seconds it is also possible to concrete feelings according to operator
Condition is configured.Modification unit 610 is by the assignment of period field in 200OK message according to need
Ask and be revised as T2, re-register cycle duration T2 can configure, for example, it is possible to be 180 seconds.
Transmit-Receive Unit 620 after user terminal receives 200OK message, during by the re-register cycle
Long T2 is handed down to user terminal, is asked with the re-register that T2 sends for cycle receive user terminal
Message, and re-register message is forwarded for the cycle to IMS with T1.
The re-register that Condition Monitoring Unit 630 receives user terminal in re-register cycle T 2 please
Seek message, then judge that user terminal does not occur connecting fault, HSS identifying subscriber terminal state is
Registration state.If not receiving the re-register request message of user terminal, judge that user terminal occurs
Connecting fault, initiates, to IMS, the Register message logging off users terminal that period field is 0,
And notify HSS identifying subscriber terminal state to be to nullify state.
In this embodiment, greatly shorten the detection time of user's connecting fault, in 4G network
Network storage User Status can be effectively improved consistent with user's time of day when covering bad
Property, it is to avoid user is in false login state for a long time.And, the present invention does not have to IMS equipment
What's new and the pressure of Message Processing.
In one embodiment, the present invention provides a kind of session Edge position control equipment SBC, including：
As above VoLTE User Status detection means.
So far, the present invention is described in detail.In order to avoid covering the design of the present invention, do not have
It is described some details known in the field.Those skilled in the art as described above,
Completely it can be appreciated how implementing technical scheme disclosed herein.
The method of the present invention and device may be achieved in many ways.For example, can pass through soft
Part, hardware, firmware or software, hardware, the side to realize the present invention for any combinations of firmware
Method and device.Said sequence for the step of methods described merely to illustrating, this
The step of the method for invention is not limited to order described in detail above, unless otherwise especially
Explanation.Additionally, in certain embodiments, also the present invention can be embodied as record in recording medium
In program, these programs include the machine readable instructions for realizing the method according to the invention.
Thus, the present invention also covers storage and is situated between for the record executing the program of the method according to the invention
Matter.
Although being described in detail to some specific embodiments of the present invention by example,
But it should be appreciated by those skilled in the art, above example merely to illustrating, and not
It is to limit the scope of the present invention.It should be appreciated by those skilled in the art, can without departing from
In the case of scope and spirit of the present invention, above example is modified.The model of the present invention
Enclose and be defined by the following claims.
Claims (13)
1. a kind of VoLTE User Status detection method is it is characterised in that include：
The existence week that IP Multimedia System IMS is issued by session Edge position control equipment SBC
Phase duration T1 is revised as re-register cycle duration T2, and described T2 is handed down to user terminal；
Described SBC is received described user terminal and is asked with the re-register that described T2 sent for the cycle
Message, and described re-register request message is sent for the cycle to described IMS with described T1.
2. VoLTE User Status detection method according to claim 1, its feature exists
In：
If after receiving re-register request message, do not receive described user through described T2
Terminal send re-register request message, then described SBC judge that described user terminal connects
Fault, and initiate user log off request to described IMS.
3. VoLTE User Status detection method according to claim 1 and 2, it is special
Levy and be：
Described IMS sends 200OK message, mark to described SBC after completing terminal authentication
Know described user terminal to succeed in registration, and notify home signature user server HSS mark described
User terminal state is registration state；
Wherein, the value of the period field in the Contact header field of described 200OK message is T1.
4. VoLTE User Status detection method according to claim 3, its feature exists
In：
The value of the described period field in 200OK message is revised as T2 by described SBC, and
200OK message is sent to described user terminal.
5. VoLTE User Status detection method according to claim 4, its feature exists
In：
After described user terminal receives 200OK message, with described T2 for the cycle to described SBC
Initiate re-register request message；
Described SBC responds described re-register request message and safeguards the registration of described user terminal
State.
6. VoLTE User Status detection method according to claim 5, its feature exists
In：
After receiving re-register request message, do not receive described user terminal through described T2
The re-register request message sending, then described SBC is to described IMS transmission Register message
Nullify described user terminal, wherein, the period field in described Register message is 0, and
Notifying described HSS to identify described user terminal state is exit state.
7. a kind of VoLTE User Status detection means is it is characterised in that include：
Modification unit, for duration life cycle issuing IP Multimedia System IMS
T1 is revised as re-register cycle duration T2；
Transmit-Receive Unit, for described T2 is handed down to user terminal, receives described user terminal
The re-register request message being sent for the cycle with described T2, and with described T1 for the cycle to described
IMS sends described re-register request message.
8. VoLTE User Status detection means according to claim 7, its feature exists
In also including：
Condition Monitoring Unit, for after receiving re-register request message, through described T2
Do not receive the re-register request message that described user terminal sends, then judge that described user terminal is sent out
Raw connecting fault；
Described Transmit-Receive Unit is used for initiating user log off request to described IMS.
9. the VoLTE User Status detection means according to claim 7 or 8, it is special
Levy and be：
Described Transmit-Receive Unit is sent out for receiving described IMS after described IMS completes terminal authentication
The 200OK message sent, identifies described user terminal and succeeds in registration, and notifies ownership signing to use
It is registration state that family server HSS identifies described user terminal state；
Wherein, the value of the period field in the Contact header field of described 200OK message is T1.
10. VoLTE User Status detection means according to claim 9, its feature
It is：
Described modification unit is used for being revised as the value of the described period field in 200OK message
T2；
Described Transmit-Receive Unit is used for sending 200OK message to described user terminal.
11. VoLTE User Status detection means according to claim 10, its feature
It is：
Described Transmit-Receive Unit is used for, after described user terminal receives 200OK message, receiving institute
State the re-register request message that user terminal is sent for the cycle with described T2；
Described Condition Monitoring Unit is used for responding described re-register request message and safeguarding described use
The login state of family terminal.
12. VoLTE User Status detection means according to claim 11, its feature
It is：
Described Transmit-Receive Unit be used for after receiving re-register request message, through described T2 not
Receive the re-register request message that described user terminal sends, then send to described IMS
Register message nullifies described user terminal, wherein, cycle in described Register message
Field is 0, and notifies described HSS to identify described user terminal state for exit state.
A kind of 13. session Edge position control equipment SBC, including：
VoLTE User Status detection means as described in claim 7 to 11 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485803.5A CN106455043A (en) | 2015-08-10 | 2015-08-10 | VoLTE user state detecting method, VoLTE user state detecting device and SBC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510485803.5A CN106455043A (en) | 2015-08-10 | 2015-08-10 | VoLTE user state detecting method, VoLTE user state detecting device and SBC |
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| CN106455043A true CN106455043A (en) | 2017-02-22 |
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| CN114868367A (en) * | 2019-11-08 | 2022-08-05 | 沃达丰Ip许可有限公司 | Method and system for exchanging periodic data in a mobile telecommunications network |
| CN114868367B (en) * | 2019-11-08 | 2024-05-28 | 沃达丰Ip许可有限公司 | Method and system for exchanging periodic data in a mobile telecommunication network |
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