CN106470441A - A kind of disaster-tolerant recovery method and system - Google Patents
A kind of disaster-tolerant recovery method and system Download PDFInfo
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- CN106470441A CN106470441A CN201510514254.XA CN201510514254A CN106470441A CN 106470441 A CN106470441 A CN 106470441A CN 201510514254 A CN201510514254 A CN 201510514254A CN 106470441 A CN106470441 A CN 106470441A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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Abstract
The present invention discloses a kind of disaster-tolerant recovery method and system, wherein carries out heartbeat detection by PCRF unit to the current P-CSCF unit providing service, if a P-CSCF unit breaks down, PCRF unit sends failure indication information to PGW；When the business occurring being associated with a P-CSCF unit, PGW sends more new bearer request to the user terminal being associated with business；User terminal, according to the more new bearer request receiving, reregisters with the 2nd P-CSCF unit for adapter, to carry business by the 2nd P-CSCF unit.The application, due to not needing to increase heartbeat detection mechanism between PGW and P-CSCF, saves the resource consumption of equipment；And after PCRF detects the fault of P-CSCF, do not need directly to notify all users again to initiate registration to the P-CSCF of adapter simultaneously, but the service request triggering re-register based on user terminal is thus complete calling task, thus avoid equipment to process the problem that a large amount of re-register signalings cause equipment paralysis simultaneously, improve the reliability of disaster-tolerant recovery.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of disaster-tolerant recovery method and system.
Background technology
VoLTE (Voice over LTE, the speech business based on LTE) pass through LTE and
IMS (IP Multimedia Subsystem, IP Multimedia System) real-time performance, LTE
Network provides 4G user to access, and IMS network provides 4G user speech business.Agent call
Session control equipment (P-CSCF, Proxy-Call Session Control Function) is
4G user accesses the Ingress node of IMS network, is IMS network core network element, with LTE
The packet data gateway (PGW, Packet Gateway) of network, strategy and charging control
Function device (PCRF, Policy and Charging Rules Function) connects, main
It is responsible for the agency of user's VoLTE business related signaling and message, by visited place access network
SIP (Session Initiation Protocol, session initiation protocol) affairs be transferred to it
The IMS network of ownership place.Packet data network gateway (PGW) equipment is as gateway
(SGW) the user data bearer path and P-CSCF equipment between, the IP of responsible UE
Address distribution, service billing, the route of packet and forward.PCRF obtains from P-CSCF
Business information, and QoS control is carried out to it according to corresponding business game and executes mutually accrued
Take strategy.
With reference to Fig. 1, to carry out disaster tolerance using PGW to P-CSCF extensive for existing disaster tolerance technology at present
Multiple method specifically includes：
Step S102, PGW increases heartbeat detection mechanism using extra, carries out to P-CSCF
Heartbeat detection.
Step S104, after PGW detects the fault of P-CSCF, to all of user terminal
Send more new bearer request, to trigger all user terminals again to standby P-CSCF
Initiate registration simultaneously.
Step S106, PGW after receiving the more new bearer request of all user terminals, to
All of user terminal sends the response of more new bearer.
Step S108, all user terminals send re-register to standby P-CSCF simultaneously please
Ask.
Step S110, standby P-CSCF sends re-register response to all user terminals.
When the originating service that standby P-CSCF receives with regard to user terminal is asked, that is,
During the caller disaster-tolerant recovery of execution user terminal, execute following steps：
Step S112, user terminal sends originating service request to standby P-CSCF.
Step S114, standby P-CSCF sends originating service response to user terminal, from
And complete calling service.
When the callee function that standby P-CSCF receives with regard to user terminal is asked, that is,
During the called disaster-tolerant recovery of execution user terminal, execute following steps：
Step S116, standby P-CSCF receives what network equipment sent to user terminal
Callee function is asked.
Step S118, standby P-CSCF sends out callee function request to user terminal.
Step S120, user terminal sends callee function response to standby P-CSCF, from
And complete called service.
As can be seen here, in the disaster-tolerant recovery method of prior art, when the event of P-CSCF equipment
During barrier, due to there is no reliable heartbeat detection mechanism, PGW between PGW and P-CSCF
Heartbeat detection mechanism need to additionally be increased to detect the equipment fault of P-CSCF, consume resource relatively
Greatly；And after PGW detects P-CSCF fault, need the P-CSCF note to fault
All users under volume trigger re-register simultaneously, are realized by more new bearer request and response, lead to
Chang Yitai P-CSCF equipment maximum capacity be 200 general-purpose families, a large number of users register simultaneously by
Network equipment failure avalanche effect can be caused due to unexpected blowout signaling storm.Additionally, with
Before family reregisters with standby P-CSCF, will with the request of user-dependent call business
It is interrupted, current service request will not be kept, have impact on the real-time of disaster tolerance business recovery.
Content of the invention
An embodiment of the present invention technical problem to be solved is：Use in prior art
PGW carries out disaster-tolerant recovery and consumes resource increasing to P-CSCF, and easily causes signaling wind
Sudden and violent problem.
One side according to embodiments of the present invention, a kind of disaster-tolerant recovery method providing, including：
PCRF unit carries out heart beating inspection to the current P-CSCF unit providing service
Survey, to judge whether a P-CSCF unit breaks down；
If a P-CSCF unit breaks down, PCRF unit sends fault to PGW
Instruction message；
When occur be associated with a P-CSCF unit business when, PGW to business phase
The user terminal of association sends more new bearer request；
User terminal, according to the more new bearer request receiving, reregisters with for adapter
2nd P-CSCF unit, to carry business by the 2nd P-CSCF unit.
In one embodiment, the business being associated with a P-CSCF unit when appearance
When, PGW sends the step bag of more new bearer request to the user terminal being associated with business
Include：
PGW, after the originating service request receiving user terminal transmission, judges originating service
Whether the purpose IP address of request are the IP address of a P-CSCF unit；
If purpose IP address are the IP address of a P-CSCF unit, PGW keeps originating
Business, will not interrupt active calls service request, and please to user terminal transmission more new bearer
Ask, the 2nd P-CSCF unit is reregistered with indicating user terminal.
In one embodiment, user terminal is according to the more new bearer request receiving, again
It is registered to the 2nd P-CSCF unit for adapter, to be held by the 2nd P-CSCF unit
The step of load business includes：
User terminal, after receiving more new bearer request, sends to the 2nd P-CSCF unit
Registration request；
2nd P-CSCF unit, after receiving re-register request, is noted to user terminal
Volume is processed；
PGW, after user terminal is registered to the 2nd P-CSCF unit, originates industry by keep
Business request is sent to the 2nd P-CSCF unit, carried by the 2nd P-CSCF unit to begin
Sending service.
In one embodiment, the business being associated with a P-CSCF unit when appearance
When, PGW sends the step bag of more new bearer request to the user terminal being associated with business
Include：
When callee function user terminal is asked, network equipment is by PCRF
After judging that the current P-CSCF unit providing service breaks down, it is user terminal
Callee function distributes the 2nd P-CSCF unit for adapter, and callee function request is sent out
Give the 2nd P-CSCF unit；
2nd P-CSCF unit inquires about the log-on message itself whether having user terminal；
If itself not having the log-on message of user terminal, the 2nd P-CSCF unit keeps using
The callee function at family, will not interrupt active calls service request, and indicates PCRF to PGW
Send adapter new information, adapter new information comprises second that user re-registers
The address information of P-CSCF unit；
, after receiving adapter new information, sending more new bearer to user terminal please for PGW
Ask, reregister with the 2nd P-CSCF unit for indicating user terminal.
In one embodiment, if itself having the log-on message of user terminal, second
The callee function receiving request is directly sent to user terminal by P-CSCF unit.
In one embodiment, user terminal is according to the more new bearer request receiving, again
It is registered to the step for the 2nd P-CSCF unit of adapter to include：
User terminal, after receiving more new bearer request, sends to the 2nd P-CSCF unit
Registration request；
2nd P-CSCF unit, after receiving re-register request, is noted to user terminal
Volume is processed；
2nd P-CSCF unit, after the completion of registration, the callee function keeping request is sent
To user terminal.
According to a further aspect in the invention, a kind of disaster-tolerant recovery system is provided, including：First
P-CSCF unit, the 2nd P-CSCF unit, PCRF unit, PGW and user are eventually
End, wherein：
PCRF unit, for carrying out the heart to the current P-CSCF unit providing service
Jump detection, to judge whether a P-CSCF unit breaks down；If a P-CSCF
Unit breaks down, then send failure indication information to PGW；
PGW, for when occur be associated with a P-CSCF unit business when, to
The user terminal that business is associated sends more new bearer request；
User terminal, for according to the more new bearer request that receives, reregister with for
2nd P-CSCF unit of adapter, to carry business by the 2nd P-CSCF unit.
In one embodiment, PGW is specifically in the originating service receiving user terminal transmission
After request, judge whether the purpose IP address of originating service request are a P-CSCF unit
IP address；If purpose IP address are the IP address of a P-CSCF unit, keep
Originating service, will not interrupt active calls service request, and holds to user terminal transmission renewal
Carry request, the 2nd P-CSCF unit is reregistered with indicating user terminal.
In one embodiment, user terminal is additionally operable to after receiving more new bearer request,
Send registration request to the 2nd P-CSCF unit；
2nd P-CSCF unit is additionally operable to after receiving re-register request, to user terminal
Carry out location registration process；
PGW is additionally operable to after user terminal is registered to the 2nd P-CSCF unit, by keep
Originating service request is sent to the 2nd P-CSCF unit, so that by the 2nd P-CSCF unit
Carry originating service.
In one embodiment, said system also includes：Network equipment, wherein：
Network equipment, during for asking when callee function user terminal, is passing through
After PCRF judges that the current P-CSCF unit providing service breaks down, it is user
The callee function of terminal distributes the 2nd P-CSCF unit for adapter, and by callee function
Request is sent to the 2nd P-CSCF unit；
2nd P-CSCF unit is additionally operable to, after receiving callee function request, inquire about itself
Whether there is the log-on message of user terminal；If itself there is no the log-on message of user terminal,
Then keep the callee function of user, active calls service request will not be interrupted, and indicate
PCRF sends adapter new information to PGW, and adapter new information comprises user and re-registers
The 2nd P-CSCF unit address information；
PGW is additionally operable to, after receiving adapter new information, send renewal to user terminal and hold
Carry request, reregister with the 2nd P-CSCF unit for indicating user terminal.
In one embodiment, the 2nd P-CSCF unit is additionally operable to itself there is user eventually
During the log-on message at end, directly the callee function receiving request is sent to user terminal.
In one embodiment, user terminal is additionally operable to after receiving more new bearer request,
Send registration request to the 2nd P-CSCF unit；
2nd P-CSCF unit is additionally operable to after receiving re-register request, to user terminal
Carry out location registration process；After the completion of registration, the callee function request of holding is sent to user
Terminal.
Embodiments of the invention pass through PCRF existing heartbeat detection mechanism and realize to P-CSCF
Detection, from without between PGW and P-CSCF increase heartbeat detection mechanism, from
And save the resource consumption of equipment；And after PCRF detects the fault of P-CSCF,
Do not need directly to notify all users under P-CSCF service simultaneously again to adapter
P-CSCF initiates registration, but the service request triggering re-register and then complete based on user terminal
Becoming calling task, thus avoiding network equipment avalanche effect, and active calls will not be interrupted
Service request, improves disaster-containing pipe reliability and real-time.
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
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing of required use in embodiment or description of the prior art is briefly described it is clear that
Ground, drawings in the following description are only some embodiments of the present invention, the common skill for this area
For art personnel, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 illustrates the information schematic diagram of the disaster-tolerant recovery method of prior art.
Fig. 2 illustrates the schematic flow sheet of an embodiment of the disaster-tolerant recovery method of the present invention.
Fig. 3 illustrates that the information of an embodiment of the disaster-tolerant recovery method of the calling service of the present invention is handed over
Mutually scheme.
Fig. 4 illustrates that the information of an embodiment of the disaster-tolerant recovery method of the called service of the present invention is handed over
Mutually scheme.
Fig. 5 illustrates the structural representation of an embodiment of the system of the disaster-tolerant recovery of the present invention.
Fig. 6 illustrates the structural representation of the further embodiment of the system of the disaster-tolerant recovery of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described it is clear that described embodiment is only present invention part reality
Apply example, rather than whole embodiments.Description at least one exemplary embodiment is real below
It is merely illustrative on border, never as any limit to the present invention and its application or use
System.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment being obtained under the premise of dynamic, broadly falls into the scope of protection of the invention.
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.
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.
Fig. 2 is the schematic flow sheet of an embodiment of disaster-tolerant recovery method of the present invention.As figure
Shown in 2, the method for this embodiment includes：
Step S202, PCRF unit is entered to the current P-CSCF unit providing service
Row heartbeat detection, to judge whether a P-CSCF unit breaks down.
Step S204, if a P-CSCF unit breaks down, PCRF unit is to PGW
Send failure indication information.
Step S206, when the business occurring being associated with a P-CSCF unit, PGW
Send more new bearer request to the user terminal being associated with business.
Step S208, user terminal, according to the more new bearer request receiving, reregisters with
For the 2nd P-CSCF unit of adapter, so that business is carried by the 2nd P-CSCF unit.
Embodiments of the invention pass through PCRF existing heartbeat detection mechanism and realize to P-CSCF
Detection, from without between PGW and P-CSCF increase heartbeat detection mechanism, thus
Save the resource consumption of equipment；And after PCRF detects the fault of P-CSCF, and
Do not need directly to notify all users under P-CSCF service simultaneously again to the P-CSCF of adapter
Initiate registration, but the service request based on user terminal triggers re-register and then completes calling times
Business, thus the equipment that avoids processes a large amount of re-register signalings and causes equipment to paralyse simultaneously, and not
Active calls service request can be interrupted, improve disaster-containing pipe reliability and real-time.
In the embodiment of the disaster-tolerant recovery method of the present invention, it is associated with a P-CSCF
Business can include：The calling service that user terminal is initiated or the lateral user terminal of network are sent out
The called service rising, the therefore disaster-tolerant recovery method of the application can include the master to user terminal
The method being the disaster-tolerant recovery of business and called service.
First, the caller industry initiated for user terminal when the business being associated with a P-CSCF
During business：
In step S206, when the calling service that is associated with a P-CSCF unit of appearance
When, the step that PGW sends more new bearer request to the user terminal being associated with calling service
Specifically can include：
PGW, after the originating service request receiving user terminal transmission, judges originating service
Whether the purpose IP address of request are the IP address of a P-CSCF unit.If purpose IP
Address is the IP address of a P-CSCF unit, and PGW keeps originating service, Bu Huizhong
Disconnected active calls service request, and send more new bearer request to user terminal, to indicate use
Family terminal reregisters with the 2nd P-CSCF unit.
Certainly, if purpose IP address are the IP of the P-CSCF unit of other normal works
Address, then PGW can by originating service request be forwarded directly to accordingly according to purpose IP address
P-CSCF unit on.
In step S208, user terminal, according to the more new bearer request receiving, is noted again
Volume is to the 2nd P-CSCF unit for adapter, to be carried by the 2nd P-CSCF unit
The step of business specifically can include：
User terminal, after receiving more new bearer request, sends to the 2nd P-CSCF unit
Registration request.
2nd P-CSCF unit, after receiving re-register request, is noted to user terminal
Volume is processed.
PGW, after user terminal is registered to the 2nd P-CSCF unit, originates industry by keep
Business request is sent to the 2nd P-CSCF unit, to carry master by the 2nd P-CSCF unit
It is business.
2nd, the called service initiated for network side when the business being associated with a P-CSCF
When：
In step S206, when the called service that is associated with a P-CSCF unit of appearance
When, the step that PGW sends more new bearer request to the user terminal being associated with called service
Can include：
When callee function user terminal is asked, network equipment is by PCRF
After judging that the current P-CSCF unit providing service breaks down, it is user terminal
Callee function distributes the 2nd P-CSCF unit for adapter, and callee function request is sent out
Give the 2nd P-CSCF unit.2nd P-CSCF unit inquires about whether itself has user
The log-on message of terminal, if itself there is no the log-on message of user terminal, second
P-CSCF unit keeps the callee function of user, will not interrupt active calls service request,
And indicating that PCRF sends adapter new information to PGW, adapter new information comprises user's weight
The address information of the 2nd P-CSCF unit of new registration.PGW disappears receiving adapter renewal
After breath, send more new bearer request to user terminal, re-register for indicating user terminal
To the 2nd P-CSCF unit.
If additionally, the 2nd P-CSCF unit itself has the log-on message of user terminal,
The callee function receiving request is directly sent to user terminal by the 2nd P-CSCF unit.
In step S208, user terminal, according to the more new bearer request receiving, is noted again
The step of volume to the 2nd P-CSCF unit for adapter includes：
User terminal, after receiving more new bearer request, sends to the 2nd P-CSCF unit
Registration request；2nd P-CSCF unit receive re-register request after, to user terminal
Carry out location registration process；2nd P-CSCF unit, after the completion of registration, the end of holding is exhaled industry
Business request is sent to user terminal.
Fig. 3 is the letter of an embodiment of the method for the disaster-tolerant recovery of calling service of the present invention
Breath interaction figure.This scene illustrates that a P-CSCF unit of current service breaks down, and
Calling service disaster-tolerant recovery method when user terminal is not re-registered, with reference to Fig. 3,
The method of the present invention includes：
Step S302, PCRF unit is entered to the current P-CSCF unit providing service
Row heartbeat detection, to judge whether a P-CSCF unit breaks down, wherein, PCRF
Specifically can currently provide the first of service by diameter protocol heart-beat message detection
P-CSCF unit whether fault.
Step S304, when a P-CSCF unit breaks down, PCRF detects
One P-CSCF unit breaks down, then PCRF unit sends failure indication information to PGW,
To notify a P-CSCF cell failure of PGW current service, wherein failure indication information
Can include：The failure identification of the first P-CSCF unit.
Step S306, when user terminal sends originating call request to PGW, to set up
Calling service.Because user terminal has not found its current P-CSCF unit registered
Through fault, so the Service Process Server that originating call request now carries is first
P-CSCF unit, the purpose IP address of its packaged IP bag are also that a P-CSCF is mono-
Unit.
Step S308, after PGW receives the originating call request of user terminal transmission, judges
Whether the purpose IP address of originating call request now are a P-CSCF of fault
Unit, if purpose IP address are a P-CSCF unit of fault, by user's
Calling service keeps, to ensure that user now ask not interrupt by call business, and to user eventually
End sends more new bearer request, to notify user terminal mono- to the 2nd P-CSCF of adapter
Unit re-starts registration.
Step S310, user terminal receive PGW transmission more new bearer request after,
Send the response of more new bearer to PGW.
Step S312, user terminal according to the more new bearer request receiving, to for taking over
The 2nd P-CSCF unit send re-register request to be held by the 2nd P-CSCF unit
Load business.
Step S314, the 2nd P-CSCF unit sends re-register response to user terminal, its
In, after step S314, can also include by user's VOLTE Service Process Server more
The step of new the 2nd P-CSCF unit being adapter.
Step S316, the originating service keeping before request is forwarded to second by PGW
P-CSCF unit.
Step S318, the 2nd P-CSCF unit sends originating service response to PGW.
Step S320, PGW, after receiving originating service response, forwards to user terminal and begins
Sending service responds, thus completing the process of calling service.
Fig. 4 is the letter of an embodiment of the method for the disaster-tolerant recovery of called service of the present invention
Breath interaction figure.This scene illustrates that a P-CSCF unit of current service breaks down, and
Called service disaster-tolerant recovery method when user terminal is not re-registered, with reference to Fig. 4,
The method of the present invention includes：
Step S402, PCRF unit is entered to the current P-CSCF unit providing service
Row heartbeat detection, to judge whether a P-CSCF unit breaks down.
Step S404, when a P-CSCF unit breaks down, PCRF detects
One P-CSCF unit breaks down, then PCRF unit sends failure indication information to PGW.
Step S406, if now user has callee function request, network equipment passes through
PCRF finds that user currently provides a P-CSCF unit of service to be in malfunction, then
Send callee function request to the 2nd P-CSCF unit for adapter.
Step S408, the 2nd P-CSCF unit for adapter itself does not have user terminal
Log-on message, then keep user's called service now, and the called service not interrupting user please
Ask, and send adapter new information to PCRF.Wherein, adapter new information can be led to
The Notify extension of message adapter undated parameter crossing diameter agreement is realized.Wherein, take over
New information includes：The address information of the 2nd P-CSCF unit that user re-registers.
Step S410, the processing business and updates receiving message is sent to PGW by PCRF, so that
PGW notifies a P-CSCF cell failure of user terminal current service, needs user eventually
End reregisters with the 2nd P-CSCF unit to set up carrying.
Step S412, PGW sends more new bearer request to user terminal, and instruction is current to be provided
First P-CSCF cell failure of service is and it needs to initiate weight to the 2nd P-CSCF unit
New registration.
Step S414, user terminal sends the response of more new bearer to PGW.
Step S416, user terminal sends re-register to the 2nd P-CSCF unit of adapter please
Ask.
Step S418, the 2nd P-CSCF unit of adapter sends re-register to user terminal and rings
Should.
Step S420, the 2nd P-CSCF unit of adapter sends callee function to user terminal
Request.
Step S422, user terminal sends callee function to the 2nd P-CSCF unit of adapter
Response.
Wherein, in step S408, if the 2nd P-CSCF unit itself has user terminal
Log-on message when, then the 2nd P-CSCF unit directly by the callee function receiving ask
It is sent to user terminal.
Fig. 5 is the structural representation of an embodiment of the system of disaster-tolerant recovery of the present invention.
With reference to Fig. 5, the system of the disaster-tolerant recovery of the present invention includes：First P-CSCF unit 502,
2nd P-CSCF unit 504, PCRF unit 506, PGW508 and user terminal 510,
Wherein：
PCRF unit 506, for the current P-CSCF unit 502 providing service
Carry out heartbeat detection, to judge whether a P-CSCF unit 502 breaks down；If the
One P-CSCF unit 502 breaks down, then send failure indication information to PGW508.
PGW508, for the business being associated with a P-CSCF unit 502 when appearance
When, send more new bearer request to the user terminal 510 being associated with institute business.
User terminal 510, for according to the more new bearer request receiving, reregistering with
For the 2nd P-CSCF unit 504 of adapter, to be held by the 2nd P-CSCF unit 504
Load business.
In one embodiment, PGW508 is specifically receiving user terminal 510 transmission
After originating service request, judge whether the purpose IP address of originating service request are first
The IP address of P-CSCF unit；If purpose IP address are the IP of a P-CSCF unit
Address, then keep the originating service of user, will not interrupt current call business request, and
Send more new bearer request to user terminal, reregister with second with indicating user terminal
P-CSCF unit 504.
In one embodiment, user terminal 510 is additionally operable to receiving more new bearer request
Afterwards, send registration request to the 2nd P-CSCF unit 504；2nd P-CSCF unit 504
It is additionally operable to, after receiving re-register request, carry out location registration process to user terminal 510.
PGW508 is additionally operable to be registered to the 2nd P-CSCF unit 504 in user terminal 510
Afterwards, originating service request is sent to the 2nd P-CSCF unit 504, so that by second
P-CSCF unit 504 carries originating service.
In one embodiment, with reference to Fig. 6, disaster-tolerant recovery system also includes：Network equipment
512, wherein：
Network equipment 512, during for asking when the callee function that user terminal 510 occurs,
After judging that by PCRF the current P-CSCF unit providing service breaks down,
Callee function for user terminal distributes the 2nd P-CSCF unit for adapter, and will eventually
Service request is exhaled to be sent to the 2nd P-CSCF unit.
2nd P-CSCF unit 504 is additionally operable to after receiving callee function request, inquiry
Whether itself has the log-on message of user terminal；If the registration itself not having user terminal is believed
Breath, then keep the callee function of user, will not interrupt active calls service request, and indicate
PCRF506 sends adapter new information to PGW508, and adapter new information comprises user's weight
The address information of the 2nd P-CSCF unit of new registration.
PGW508 is additionally operable to after receiving adapter new information, to user terminal 510
Send more new bearer request, reregister with the 2nd P-CSCF for indicating user terminal 510
Unit 504.
In one embodiment, the 2nd P-CSCF unit 504 is additionally operable to there is use at itself
During the log-on message of family terminal 510, directly the callee function receiving request is sent to use
Family terminal 510.
In one embodiment, user terminal 510 is additionally operable to receiving more new bearer request
Afterwards, send registration request to the 2nd P-CSCF unit 504.
2nd P-CSCF unit 504 is additionally operable to after receiving re-register request, to user
Terminal 510 carries out location registration process；After the completion of registration, the callee function receiving is asked
It is sent to user terminal 510.
One of ordinary skill in the art will appreciate that realizing all or part step of above-described embodiment
Suddenly can be completed it is also possible to the hardware being instructed correlation by program is completed by hardware, institute
The program stated can be stored in a kind of computer-readable recording medium, and storage mentioned above is situated between
Matter can be read only memory, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement made etc., all should wrap
It is contained within protection scope of the present invention.
Claims (12)
1. a kind of disaster-tolerant recovery method is it is characterised in that include：
PCRF unit carries out heart beating inspection to the current P-CSCF unit providing service
Survey, to judge whether a P-CSCF unit breaks down；
If a P-CSCF unit breaks down, PCRF unit sends fault to PGW
Instruction message；
When occur be associated with a P-CSCF unit business when, PGW to described industry
The associated user terminal of business sends more new bearer request；
Described user terminal, according to the more new bearer request receiving, reregisters with for connecing
2nd P-CSCF unit of pipe, to carry described business by the 2nd P-CSCF unit.
2. method according to claim 1 it is characterised in that
When occur be associated with a P-CSCF unit business when, PGW to described industry
The step that the associated user terminal of business sends more new bearer request includes：
PGW, after receiving the originating service request that described user terminal sends, judges described
Whether the purpose IP address of originating service request are the IP address of a P-CSCF unit；
If described purpose IP address are the IP address of a P-CSCF unit, described PGW
Keep described originating service, active calls service request will not be interrupted, and to described user eventually
End sends more new bearer request, to indicate that described user terminal reregisters with second
P-CSCF unit.
3. method according to claim 2 it is characterised in that
Described user terminal, according to the more new bearer request receiving, reregisters with for connecing
2nd P-CSCF unit of pipe, to carry described business by the 2nd P-CSCF unit
Step includes：
Described user terminal after more new bearer request described in receiving, to the 2nd P-CSCF
Unit sends registration request；
2nd P-CSCF unit is after receiving described re-register request, whole to described user
End carries out location registration process；
PGW after described user terminal is registered to the 2nd P-CSCF unit, will keep beginning
Sending service request is sent to the 2nd P-CSCF unit, to be held by the 2nd P-CSCF unit
Carry originating service.
4. method according to claim 1 it is characterised in that
When occur be associated with a P-CSCF unit business when, PGW to described industry
The step that the associated user terminal of business sends more new bearer request includes：
When the callee function request of described user terminal, network equipment is passing through
After PCRF judges that the current P-CSCF unit providing service breaks down, for described
The callee function of user terminal distributes the 2nd P-CSCF unit for adapter, and will be described
Callee function request is sent to the 2nd P-CSCF unit；
2nd P-CSCF unit inquires about the registration letter itself whether with described user terminal
Breath；
If itself not having the log-on message of described user terminal, the 2nd P-CSCF unit is protected
Hold the callee function of user, active calls service request will not be interrupted, and indicate PCRF to
PGW sends adapter new information, described adapter new information comprise that user re-registers the
The address information of two P-CSCF units；
PGW, after receiving adapter new information, sends more new bearer to described user terminal
Request, for indicating that described user terminal reregisters with the 2nd P-CSCF unit.
5. method according to claim 4 it is characterised in that
If itself having the log-on message of described user terminal, the 2nd P-CSCF unit is straight
Connect and the callee function receiving request is sent to described user terminal.
6. method according to claim 5 it is characterised in that
Described user terminal, according to the more new bearer request receiving, reregisters with for connecing
The step of the 2nd P-CSCF unit of pipe includes：
Described user terminal after more new bearer request described in receiving, to the 2nd P-CSCF
Unit sends registration request；
2nd P-CSCF unit is after receiving described re-register request, whole to described user
End carries out location registration process；
2nd P-CSCF unit, after the completion of registration, the callee function keeping request is sent
To described user terminal.
7. a kind of disaster-tolerant recovery system is it is characterised in that include：First P-CSCF is mono-
Unit, the 2nd P-CSCF unit, PCRF unit, PGW and user terminal, wherein：
PCRF unit, for carrying out the heart to the current P-CSCF unit providing service
Jump detection, to judge whether a P-CSCF unit breaks down；If a P-CSCF
Unit breaks down, then send failure indication information to PGW；
PGW, for when occur be associated with a P-CSCF unit business when, to
The user terminal that described business is associated sends more new bearer request；
Described user terminal, for according to the more new bearer request receiving, reregistering with
For the 2nd P-CSCF unit of adapter, to be carried described by the 2nd P-CSCF unit
Business.
8. system according to claim 7 it is characterised in that
PGW specifically, after receiving the originating service request that described user terminal sends, judges
Whether the purpose IP address of described originating service request are the IP ground of a P-CSCF unit
Location；If described purpose IP address are the IP address of a P-CSCF unit, keep institute
State originating service, active calls service request will not be interrupted, and send to described user terminal
More new bearer request, mono- to indicate that described user terminal reregisters with the 2nd P-CSCF
Unit.
9. system according to claim 8 it is characterised in that
Described user terminal is additionally operable to after more new bearer request described in receiving, to second
P-CSCF unit sends registration request；
2nd P-CSCF unit is additionally operable to after receiving described re-register request, to described
User terminal carries out location registration process；
PGW is additionally operable to, after described user terminal is registered to the 2nd P-CSCF unit, will protect
The originating service request held is sent to the 2nd P-CSCF unit, so that by the 2nd P-CSCF
Unit carries originating service.
10. system according to claim 7 is it is characterised in that also include：Network
Side apparatus, wherein：
Network equipment, during for asking when the callee function that described user terminal occurs,
After judging that the current P-CSCF unit providing service breaks down by PCRF, it is
The callee function of described user terminal distributes the 2nd P-CSCF unit for adapter, and will
Described callee function request is sent to the 2nd P-CSCF unit；
2nd P-CSCF unit is additionally operable to, after receiving callee function request, inquire about itself
Whether there is the log-on message of described user terminal；If itself there is no the note of described user terminal
Volume information, then keep the callee function of user, will not interrupt active calls service request, and
Instruction PCRF sends adapter new information to PGW, and described adapter new information comprises user
The address information of the 2nd P-CSCF unit re-registering；
PGW is additionally operable to, after receiving adapter new information, send more to described user terminal
New bearer request, mono- for indicating that described user terminal reregisters with the 2nd P-CSCF
Unit.
11. systems according to claim 10 it is characterised in that
2nd P-CSCF unit is additionally operable in the log-on message itself with described user terminal
When, directly the callee function receiving request is sent to described user terminal.
12. systems according to claim 11 it is characterised in that
Described user terminal is additionally operable to after more new bearer request described in receiving, to second
P-CSCF unit sends registration request；
2nd P-CSCF unit is additionally operable to after receiving described re-register request, to described
User terminal carries out location registration process；After the completion of registration, the callee function keeping request is sent out
Give described user terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510514254.XA CN106470441B (en) | 2015-08-20 | 2015-08-20 | A kind of disaster-tolerant recovery method and system |
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| CN201510514254.XA CN106470441B (en) | 2015-08-20 | 2015-08-20 | A kind of disaster-tolerant recovery method and system |
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| CN106470441B CN106470441B (en) | 2019-11-29 |
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| CN110099430A (en) * | 2018-01-31 | 2019-08-06 | 华为技术有限公司 | A kind of service equipment switching method and its device |
| WO2019210502A1 (en) * | 2018-05-04 | 2019-11-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for data transmission |
| WO2022042466A1 (en) * | 2020-08-31 | 2022-03-03 | 华为技术有限公司 | Fault recovery method and apparatus |
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| CN106470441B (en) | 2019-11-29 |
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