CN106856511A - Method, gateway, PCRF network elements and system for dynamic assignment IP address pond - Google Patents
Method, gateway, PCRF network elements and system for dynamic assignment IP address pond Download PDFInfo
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- CN106856511A CN106856511A CN201510893912.0A CN201510893912A CN106856511A CN 106856511 A CN106856511 A CN 106856511A CN 201510893912 A CN201510893912 A CN 201510893912A CN 106856511 A CN106856511 A CN 106856511A
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- address
- gateway
- user terminal
- network elements
- address pond
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5061—Pools of addresses
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses a kind of method for dynamic assignment IP address pond, gateway, PCRF network elements and system.The method includes：When the network attachment for receiving user terminal is asked, assignment request is sent to PCRF network elements, the assignment request includes ID and customer position information, according to ID and customer position information is that user terminal distributes IP address pond so as to PCRF network elements, and return to the IP address pond of distribution；For user terminal distributes IP address in the IP address pond of PCRF network elements distribution.The present invention carries out dynamic authorization management by PCRF network elements to PGW address pools, solves the problems, such as that address pool can only carry out single assigned according to APN or IMSI number section, and realize carries out the distribution of dynamic address pond based on the strategy such as position to user.
Description
Technical field
It is more particularly to a kind of to be used for dynamic assignment IP address pond the present invention relates to moving communicating field
Method, gateway, PCRF network elements and system.
Background technology
Domestic consumer is in any position (such as management and control and non-management and control area) by PGW (PDN
GateWay, public data network gateway) according to ANP (access point), IMSI, (world is mobile to be used
Family identification code) number section be user distribute IP address, PCRF network elements (Policy and Charging
Rules Function, strategy and charging rule functions) network element is not involved in the distribution of IP address, because
This network cannot carry out address pool distribution according to the credit grade of user, customer location, PGW states.
The content of the invention
In view of above technical problem, the invention provides a kind of side for dynamic assignment IP address pond
Method, gateway, PCRF network elements and system, it can not be UE points based on customer location to solve PGW
Problem with IP address.
According to an aspect of the present invention, there is provided a kind of side for dynamic assignment IP address pond
Method, including：
When the network attachment for receiving user terminal is asked, sending assignment to PCRF network elements please
Ask, the assignment request includes ID and customer position information, so as to PCRF network elements
It is user terminal distribution IP address pond according to ID and customer position information, and returns to distribution
IP address pond；
For user terminal distributes IP address in the IP address pond of PCRF network elements distribution.
In one embodiment of the invention, after assignment request is sent to PCRF network elements, also
Including：
Whether judgement receives the IP address pond that PCRF network elements are issued in the given time；
If receiving the IP address pond that PCRF network elements are issued in the given time, perform
The step of IP address being distributed in the IP address pond of PCRF network elements distribution for user terminal；
If not receiving the IP address pond that PCRF network elements are issued in the given time, according to
It is that user terminal distributes IP address to access point mode.
According to another aspect of the present invention, there is provided a kind of method for dynamic assignment IP address pond,
Including：
When the assignment for receiving gateway transmission is asked, user's mark is obtained from the assignment request
Know and customer position information, wherein, the assignment request is that gateway is receiving user terminal
What network attachment sent when asking；
It is user terminal distribution IP address pond according to ID and customer position information；
Gateway is handed down in the IP address pond of distribution, so that gateway is in the IP address pond of distribution
For user terminal distributes IP address.
In one embodiment of the invention, it is user according to ID and customer position information
The step of terminal distribution IP address pond, includes：
User property and the user corresponding with the ID is obtained according to ID inquiry
Grade；
According to the number of addresses in user property, user gradation, customer position information and address pool
It is user terminal distribution IP address pond to measure.
According to another aspect of the present invention, there is provided a kind of method for dynamic assignment IP address pond,
Including：
Judge whether the first gateway is abnormal；
If the first gateway exception, records the state of the first gateway；
When the assignment for receiving the transmission of the second gateway is asked, obtained from the assignment request and used
Family identifies and customer position information, wherein, first gateway and the second gateway are in samely
Reason region, the assignment request is first by the first gateway access business in user terminal
After gateway exception, during by the second gateway access business, what the second gateway sent；
State according to ID, customer position information and the first gateway is user terminal distribution
IP address pond, wherein the IP address pond is the corresponding address pool of the first gateway；
The second gateway is handed down in the IP address pond of distribution, so that the second gateway is in the IP of distribution
For user terminal distributes IP address in address pool.
In one embodiment of the invention, according to ID, customer position information and first
The state of gateway is that user terminal includes the step of distributing IP address pond：
User property and the user corresponding with the ID is obtained according to ID inquiry
Grade；
According to the number of addresses in user property, user gradation, customer position information, address pool
And first the state of gateway be user terminal distribution IP address pond.
According to another aspect of the present invention, there is provided a kind of gateway for dynamic assignment IP address pond,
Including request transmitting unit and allocation unit, wherein：
Request transmitting unit, for when receive user terminal network attachment ask when, to
PCRF network elements send assignment request, and the assignment request includes ID and customer location
Information, according to ID and customer position information is user terminal distribution so as to PCRF network elements
IP address pond, and return to the IP address pond of distribution；
Allocation unit, for being user's end in the IP address pond that PCRF network elements are distributed
End distribution IP address.
In one embodiment of the invention, the gateway also includes recognition unit, wherein：
Recognition unit, after in request transmitting unit to the transmission assignment request of PCRF network elements,
Whether judgement receives the IP address pond that PCRF network elements are issued in the given time；
Allocation unit is additionally operable to the judged result according to recognition unit, if in the given time
The IP address pond that PCRF network elements are issued is received, then performs the IP in the distribution of PCRF network elements
The operation of IP address is distributed in address pool for user terminal；If not receiving in the given time
The IP address pond that PCRF network elements are issued, then be that user terminal distributes IP according to point mode is accessed
Address.
According to another aspect of the present invention, there is provided a kind of PCRF for dynamic assignment IP address pond
Network element, including extraction unit, address pool allocation unit and issuance unit, wherein：
Extraction unit, during for being asked in the assignment for receiving gateway transmission, please from the assignment
Middle acquisition ID and customer position information are asked, wherein, the assignment request is that gateway is connecing
What the network attachment for receiving user terminal sent when asking；
Address pool allocation unit, for being user terminal according to ID and customer position information
Distribution IP address pond；
Issuance unit, for the IP address pond that address pool allocation unit is distributed to be handed down into gateway,
So as to gateway distribution IP address pond in for user terminal distribute IP address.
In one embodiment of the invention, address pool allocation unit include attribute acquisition module and
Address pool distribute module, wherein：
Attribute acquisition module, for obtaining relative with the ID according to ID inquiry
The user property and user gradation answered；
Address pool distribute module, for according to user property, user gradation, customer position information
And the number of addresses in address pool is user terminal distribution IP address pond.
In one embodiment of the invention, the PCRF network elements also include state recognition unit
With state recording unit, wherein：
State recognition unit, for judging whether the first gateway is abnormal；
State recording unit, for the judged result according to state recognition unit, if the first gateway
It is abnormal, then record the state of the first gateway；
Extraction unit is additionally operable to when the assignment for receiving the transmission of the second gateway is asked, from the finger
With acquisition ID and customer position information in request, wherein, first gateway and second
Gateway is in same geographic area, and the assignment request is visited by the first gateway in user terminal
Ask business and after the first gateway exception, during by the second gateway access business, the second gateway hair
Go out；
Address pool allocation unit is additionally operable to according to ID, customer position information and the first gateway
State be user terminal distribution IP address pond, wherein the IP address pond is the first gateway pair
The address pool answered；
Issuance unit is additionally operable to for the IP address pond that address pool allocation unit is distributed to be handed down to second
Gateway, so as to the second gateway distribution IP address pond in for user terminal distribute IP address.
According to another aspect of the present invention, there is provided a kind of system for dynamic assignment IP address pond,
Described in the gateway described in any of the above-described embodiment and any of the above-described embodiment
PCRF network elements.
The present invention carries out dynamic authorization management by PCRF network elements to PGW address pools, solves
Address pool can only carry out the problem of single assigned according to APN or IMSI number section, realize and be based on
The strategy such as position carries out the distribution of dynamic address pond to user.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing to be used needed for 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, for the common skill in 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 is schematic diagram of the present invention for the method one embodiment in dynamic assignment IP address pond.
Fig. 2 is schematic diagram of the present invention for another embodiment of method in dynamic assignment IP address pond.
The schematic diagram of message and AVP forms in Fig. 3 one embodiment of the invention after Interface Expanding.
Fig. 4 is schematic diagram of the present invention for the another embodiment of method in dynamic assignment IP address pond.
Fig. 5 is schematic diagram of the present invention for the gateway one embodiment in dynamic assignment IP address pond.
Fig. 6 is the PCRF network element one embodiment of the present invention for dynamic assignment IP address pond
Schematic diagram.
Fig. 7 is the schematic diagram of address pool allocation unit in one embodiment of the invention.
Fig. 8 is PCRF network element another embodiment of the present invention for dynamic assignment IP address pond
Schematic diagram.
Fig. 9 is schematic diagram of the present invention for the system one embodiment in dynamic assignment IP address pond.
The flow chart of address pool is distributed in Figure 10 one specific embodiment of the present invention based on diverse location.
PGW dynamically compensates the flow chart of dilatation in Figure 11 another specific embodiments 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 a real part of the invention
Example is applied, rather than whole embodiments.Below to the description reality of at least one exemplary embodiment
On be merely illustrative, never as to the present invention and its application or any limitation for using.Base
Embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part that otherwise illustrates in these embodiments and step it is relative
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 size of the various pieces shown in accompanying drawing
It is not to be drawn according to actual proportionate relationship.
May not make in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Discuss, but in the appropriate case, the technology, method and apparatus should be considered as authorizing specification
A part.
In all examples shown here and discussion, any occurrence should be construed as merely and show
Example property, not as limitation.Therefore, the other examples of exemplary embodiment can have not
Same value.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore,
Once being defined in a certain Xiang Yi accompanying drawing, then need not it be entered to advance in subsequent accompanying drawing
One step discussion.
Fig. 1 is schematic diagram of the present invention for the method one embodiment in dynamic assignment IP address pond.
Preferably, the present embodiment can be performed by the present invention for the gateway in dynamic assignment IP address pond, its
Described in gateway can be PGW or SGW (Serving GateWay, gateway).
The method is comprised the following steps：
Step 101, when the network attachment for receiving user terminal is asked, to PCRF network elements
Assignment request (CCR requests) is sent, the assignment request includes ID and user position
Confidence ceases, so that PCRF network elements determine user property and user gradation according to ID, it
Afterwards according to number of addresses in user property, user gradation, customer position information, address pool etc.
Information carries out decision-making, is the applicable IP address pond of user terminal distribution, and will by Gx interfaces
The IP address pond of the distribution is issued to gateway.
Step 102, receives the address pool that PCRF network elements are issued, according to the finger of PCRF network elements
Show, for user terminal distributes IP address in the IP address pond of PCRF network elements distribution.
Based on the above embodiment of the present invention provide the method for dynamic assignment IP address pond,
On the premise of not changing existing equipment flow, gateway address pond can be entered by PCRF network elements
Mobile state empowerment management, can only be according to APN or IMSI number so as to solve existing address pool
The problem of Duan Jinhang single assigneds, realize carries out dynamic address based on the strategy such as position to user
Pond is distributed.
In one embodiment of the invention, after the step of Fig. 1 embodiments 101, the side
Method can also include：
1st, judge whether receive the IP address pond that PCRF network elements are issued in the given time.
If the 2, receiving the IP address pond that PCRF network elements are issued in the given time, perform
" according to the instruction of PCRF network elements, in the IP address pond of PCRF network elements distribution in step 102
In for user terminal distribute IP address " the step of.
If the 3, not receiving the IP address pond that PCRF network elements are issued in the given time, according to
ANP or IMSI number section are that user terminal distributes IP address.
The above embodiment of the present invention is considered when PCRF network elements are abnormal, can also be according to ANP
Or IMSI number section is that user terminal distributes IP address, so as to improve applicability of the invention,
Improve Consumer's Experience.
Fig. 2 is schematic diagram of the present invention for another embodiment of method in dynamic assignment IP address pond.
Preferably, the present embodiment can be held by the present invention for the PCRF network elements in dynamic assignment IP address pond
OK.The method is comprised the following steps：
Step 201, when the assignment for receiving gateway transmission is asked, from the assignment request
ID and customer position information are obtained, wherein, the assignment request is that gateway is being received
What the network attachment of user terminal sent when asking.
Step 202, is that user terminal distributes IP address according to ID and customer position information
Pond.
In one embodiment of the invention, step 202 can include：Looked into according to ID
Ask and obtain the user property and user gradation corresponding with the ID；According to user property,
The information such as the number of addresses in user gradation, customer position information and address pool carry out decision-making,
It is the applicable IP address pond of user terminal distribution.
Step 203, gateway is handed down to by Gx interfaces by the IP address pond of the distribution, with
Just gateway is user terminal distribution IP address in the IP address pond of distribution.
In one embodiment of the invention, step 203 includes only needing in the first of Gx interfaces
Increase Address-Pool field (message format and AVP after increase in beginning CCA response message
Form such as Fig. 3), to be applicable for the user for PCRF network element dynamic instruction GW
Address pool, after the address Pool name in CCA response messages is received so as to GW, according to address
Pool name is that active user distributes IP address.
Based on the method for dynamic assignment IP address pond that the above embodiment of the present invention is provided,
PCRF network elements enter Mobile state management to the address pool of gateway, and are not changing existing procedure situation
Under, when user is in diverse location access network, PCRF network elements are according to user property, user
Positional information etc. carries out its applicable IP address pond of decision-making, and by extending the AVP of Gx interfaces
Realize that address pool information is issued to the dynamic of gateway, can only be according to APN so as to solve address pool
Or IMSI number section carries out the problem of single assigned, realize user is entered based on the strategy such as position
Mobile state address pool is distributed.
In another embodiment of the invention, in the case of in need, PCRF network elements can also
In the Address-Pool AVP of the initial CCA response messages of Gx interfaces as shown in Figure 3
Middle multiplexing Address fields, User IP, also together distribution is gone down.Above-mentioned implementation of the invention
Distributed while PCRF network elements can simultaneously realize IP address pond and IP address in example,
So as to alleviate the burden of the distribution IP address of gateway.
Fig. 4 is schematic diagram of the present invention for the another embodiment of method in dynamic assignment IP address pond.
Preferably, the present embodiment can be held by the present invention for the PCRF network elements in dynamic assignment IP address pond
OK.The method is comprised the following steps：
Step 401, judges whether the first gateway is abnormal.
Step 402, if the first gateway exception, records the state of the first gateway.
Step 403, when the assignment for receiving the transmission of the second gateway is asked, please from the assignment
Middle acquisition ID and customer position information are asked, wherein, first gateway and the second gateway
In same geographic area, the assignment request is to pass through the first gateway access industry in user terminal
Business and after the first gateway exception, during by the second gateway access business, what the second gateway sent.
Step 404, the state according to ID, customer position information and the first gateway is use
Family terminal distribution IP address pond, wherein the IP address pond is the corresponding address pool of the first gateway.
In one embodiment of the invention, step 404 can include：Looked into according to ID
Ask and obtain the user property and user gradation corresponding with the ID；According to user property,
The state of number of addresses and the first gateway in user gradation, customer position information, address pool
Decision-making is carried out etc. information, is the applicable IP address pond of user terminal distribution.
Step 405, the second gateway is handed down to by the IP address pond of distribution, so that the second gateway exists
For user terminal distributes IP address in the IP address pond of distribution.
The above embodiment of the present invention, by the dynamic address pool technology based on policy control, when
When machine of delaying in many PGW etc. is abnormal, PCRF network elements can be issued dynamically
The address pool of abnormal PGW is used to normal PGW, realizes the gateway device exception such as PGW
When address pool dynamically compensation dilatation, so as to reduce human configuration dilatation, improve network fortune
Row security.
Fig. 5 is schematic diagram of the present invention for the gateway one embodiment in dynamic assignment IP address pond.
As shown in figure 5, the gateway includes request transmitting unit 501 and allocation unit 502, its
In：
Request transmitting unit 501, for when receive user terminal network attachment ask when,
Assignment request is sent to PCRF network elements, the assignment request includes ID and user position
Confidence ceases, and according to ID and customer position information is user terminal point so as to PCRF network elements
With IP address pond, and return to the IP address pond of distribution.
Allocation unit 502, for being user in the IP address pond that PCRF network elements are distributed
Terminal distribution IP address.
In one embodiment of the invention, the gateway can be PGW or SGW.
Based on the above embodiment of the present invention provide the gateway for dynamic assignment IP address pond,
On the premise of not changing existing equipment flow, gateway address pond can be entered by PCRF network elements
Mobile state empowerment management, gateway is user terminal in the IP address pond that PCRF network elements are distributed
Distribution IP address, can only enter so as to solve existing address pool according to APN or IMSI number section
The problem of row single assigned, realize carries out dynamic address pond point to user based on the strategy such as position
Match somebody with somebody.
In one embodiment of the invention, as shown in figure 5, the gateway can also include knowing
Other unit 503, wherein：
Recognition unit 503, assigns for being sent to PCRF network elements in request transmitting unit 501
After request, whether judgement receives the IP address pond that PCRF network elements are issued in the given time.
Allocation unit 502 is additionally operable to the judged result according to recognition unit 503, if pre-
The IP address pond that PCRF network elements are issued is received in fixing time, is then performed in PCRF network elements
The operation of IP address is distributed in the IP address pond of distribution for user terminal；If in the given time
The IP address pond that PCRF network elements are issued is not received, is then user's end according to point mode is accessed
End distribution IP address.
The above embodiment of the present invention is considered when PCRF network elements are abnormal, can also be according to ANP
Or IMSI number section is that user terminal distributes IP address, so as to improve applicability of the invention,
Improve Consumer's Experience.
Fig. 6 is the PCRF network element one embodiment of the present invention for dynamic assignment IP address pond
Schematic diagram.As shown in fig. 6, the PCRF network elements are distributed including extraction unit 601, address pool
Unit 602 and issuance unit 603, wherein：
Extraction unit 601, during for being asked in the assignment for receiving gateway transmission, from the finger
With acquisition ID and customer position information in request, wherein, the assignment request is gateway
Sent when the network attachment for receiving user terminal is asked.
Address pool allocation unit 602, for being user according to ID and customer position information
Terminal distribution IP address pond.
In one embodiment of the invention, as shown in fig. 7, address pool allocation unit 602 can
With including attribute acquisition module 6021 and address pool distribute module 6022, wherein：
Attribute acquisition module 6021, for being obtained and the ID according to ID inquiry
Corresponding user property and user gradation.
Address pool distribute module 6022, for according to user property, user gradation, customer location
Number of addresses in information and address pool is user terminal distribution IP address pond.
Issuance unit 603, the IP address pond for address pool allocation unit 602 to be distributed issues
To gateway, so as to gateway in the IP address pond of distribution for user terminal distributes IP address.
Based on the PCRF nets for dynamic assignment IP address pond that the above embodiment of the present invention is provided
Unit, the address pool to gateway enters Mobile state management, and in the case of existing procedure is not changed, when
User is determined in diverse location access network according to user property, customer position information etc.
Its applicable IP address pond of plan, and realize address pool information by extending the AVP of Gx interfaces
Issued to the dynamic of gateway, can only be entered according to APN or IMSI number section so as to solve address pool
The problem of row single assigned, realize carries out dynamic address pond point to user based on the strategy such as position
Match somebody with somebody.
Fig. 8 is PCRF network element another embodiment of the present invention for dynamic assignment IP address pond
Schematic diagram.Compared with embodiment illustrated in fig. 6, in the embodiment shown in fig. 8, the PCRF nets
Unit also includes state recognition unit 604 and state recording unit 605, wherein：
State recognition unit 604, for judging whether the first gateway is abnormal.
State recording unit 605, for the judged result according to state recognition unit 604, if
First gateway exception, then record the state of the first gateway.
Extraction unit 601 is additionally operable to when the assignment for receiving the transmission of the second gateway is asked, from institute
State assignment request in obtain ID and customer position information, wherein, first gateway and
Second gateway is in same geographic area, and the assignment request is to pass through the first net in user terminal
Close access service and after the first gateway exception, during by the second gateway access business, the second net
What pass sent.
Address pool allocation unit 602 is additionally operable to according to ID, customer position information and first
The state of gateway is user terminal distribution IP address pond, wherein the IP address pond is the first net
Close corresponding address pool.
In one embodiment of the invention, as shown in fig. 7, address pool allocation unit 602 can
With including attribute acquisition module 6021 and address pool distribute module 6022, wherein：
Attribute acquisition module 6021, for being obtained and the ID according to ID inquiry
Corresponding user property and user gradation.
Address pool distribute module 6022, for according to user property, user gradation, customer location
Number of addresses in information, the state of the first gateway and address pool is user terminal distribution IP
Address pool.
The IP address pond that issuance unit 603 is additionally operable to distribute address pool allocation unit 602 issues
To the second gateway, so as to the second gateway in the IP address pond of distribution for user terminal distributes IP
Address.
In one embodiment of the invention, first gateway and the second gateway are any of the above-described reality
Apply the gateway described in example.
In one embodiment of the invention, first gateway and the second gateway can be PGW
Or SGW.
The above embodiment of the present invention, by the dynamic address pool technology based on policy control, when
When machine of delaying in many PGW etc. is abnormal, PCRF network elements can be issued dynamically
The address pool of abnormal PGW is used to normal PGW, realizes the gateway device exception such as PGW
When address pool dynamically compensation dilatation, so as to reduce human configuration dilatation, improve network fortune
Row security.
Fig. 9 is schematic diagram of the present invention for the system one embodiment in dynamic assignment IP address pond.
As shown in figure 9, the system includes gateway 50 and PCRF network elements 60, wherein：
Gateway 50, for when the network attachment for receiving user terminal 40 is asked, to PCRF
Network element sends assignment request, and the assignment request includes ID and customer position information.
In one embodiment of the invention, gateway 50 is institute in any of the above-described embodiment of the invention
The gateway stated.
PCRF network elements 60, for being use according to information such as ID and customer position informations
The distribution IP address of family terminal 40 pond, gateway 50 is handed down to by the IP address pond of distribution, so as to
Gateway 50 is in the IP address pond of distribution for user terminal 40 distributes IP address.
In one embodiment of the invention, PCRF network elements 60 are any of the above-described implementation of the invention
PCRF network elements described in example.
Based on the system for dynamic assignment IP address pond that the above embodiment of the present invention is provided, lead to
Cross PCRF network elements and enter Mobile state management to the address pool of gateway, and do not change existing procedure feelings
Under condition, when user is in diverse location access network, PCRF network elements are according to user property, use
Family positional information etc. carries out its applicable IP address pond of decision-making, and by extending Gx interfaces
AVP realizes that address pool information is issued to the dynamic of gateway, can only basis so as to solve address pool
APN or IMSI number section carry out the problem of single assigned, realize based on position etc. strategy to
Family carries out the distribution of dynamic address pond.
Below by specific example, the present invention will be described：
The flow chart of address pool is distributed in Figure 10 the first specific embodiments of the present invention based on diverse location.
As shown in Figure 10：
Scene one：User terminal passes through MME (Mobility Management from region 1
Entity, mobile management nodes), eNB (evolved Node B, evolved base station) etc. connects
When entering equipment access, the flow includes：
Step 1, the positional information in PGW carryings position area 1 to PCRF network elements.
Step 2, PCRF network elements are according to the number of addresses in user property, positional information, address pool
Measure and issue address pool Pool-1 to PGW.
Step 3, PGW are designated as the IP ground in user's distribution Pool-1 according to PCRF network elements
Location.
Scene two：When user terminal is accessed from region 2 by access devices such as MME, eNB,
The flow includes：
Step 1, the positional information in PGW carryings position area 2 to PCRF network elements.
Step 2, PCRF network elements are according to the number of addresses in user property, positional information, address pool
Measure and issue address pool Pool-2 to PGW.
Step 3, PGW are designated as the IP ground in user's distribution Pool-2 according to PCRF network elements
Location.
PCRF network elements can be believed according to the diverse location of user terminal in the above embodiment of the present invention
Cease for gateway provides corresponding address pool, so as to the IP address that gateway is distributed in the address pool for user.
It is achieved thereby that carrying out the distribution of dynamic address pond to user based on the strategy such as position.
In the second specific embodiment of the invention, domestic consumer management and control position area (county domain,
Administrative region of a city, army area under control etc.) IP address in management and control area is allocated, distribute other IP in non-management and control area
Address.
In the 3rd specific embodiment of the invention, the user or government and enterprises user of credit are in management and control area
With the IP address that non-management and control area can obtain untethered, and the free Handover of energy.
In the above embodiment of the present invention PCRF network elements can according to the management and control zone position of user terminal,
Non- management and control zone position, different user attribute and the user gradation corresponding address pool for gateway is provided, with
Just the IP address that gateway is distributed in the address pool for user, it is achieved thereby that based on management and control zone position,
The strategy such as non-management and control zone position, user property, user gradation carries out dynamic address pond point to user
Match somebody with somebody.
PGW dynamically compensates the flow chart of dilatation in Figure 11 the 4th specific embodiments of the present invention.Such as
Shown in Figure 11, two PGW-1, PGW-2 be configured with identical IP address pond (Pool-1,
Pool-2, Pool-3, Pool-4), daily PGW-1 only uses Pool-1 and Pool-2, daily
PGW-2 only uses Pool-3 and Pool-4.The flow includes：
Step 1, user terminal B when by PGW-1 access services, PGW-1 exceptions,
The heartbeat disconnecting of PGW-1 and PCRF network elements, PCRF network elements judge PGW-1 exceptions；
Then user terminal B is linked into PGW-2 after adhering to again, and concurrently playing PCRF network elements please
Ask.
Step 2, PCRF network elements are according to the address in user property, positional information, address pool
The state of quantity and PGW-1 issues address pool Pool-1 to PGW-2.
Step 3, PGW-2 are designated as the IP in user's distribution Pool-1 according to PCRF network elements
Address.
The above embodiment of the present invention can realize the dynamic compensation to PGW address pools, i.e., normally
After the user of PGW adapter exceptions PGW, its address pool can be not enough, now PCRF nets
Unit can use the address pool of exception PGW with the normal PGW of dynamic authorization.
In the 5th specific embodiment of the invention, certain 2 PGW for saving is configured with identical
IP address pond.Normal condition PGW1 only uses Pool-1, PGW2 only to use Pool-2, when
PGW1 delay machine when, user is routed to PGW2 after accessing again, PCRF network elements according to
The state of PGW1, the address pool of Pool-1 is issued to PGW2, so as to avoid PGW2
On address pool it is not enough, realize address pool and dynamically compensate dilatation in abnormal cases.
The above embodiment of the present invention can be applied in 4G and future network.
Transmitting element 501 described above, allocation unit 502, extraction unit 601,
Address pool allocation unit 602, issuance unit 603, state recognition unit 604, state recording list
First 605 grade functional units can be implemented as the general procedure for performing function described herein
Device, programmable logic controller (PLC) (PLC), digital signal processor (DSP), special collection
Into circuit (ASIC), field programmable gate array (FPGA) or other FPGAs
Device, discrete gate or transistor logic, discrete hardware components or its any appropriate group
Close.
So far, the present invention is described in detail.In order to avoid covering design of the invention, do not have
Description 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.
One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment
Can be completed by hardware, it is also possible to instruct the hardware of correlation to complete by program, it is described
Program can be stored in a kind of computer-readable recording medium, and storage medium mentioned above can be with
It is read-only storage, disk or CD etc..
Description of the invention is given for the sake of example and description, and is not exhaustively
Or limit the invention to disclosed form.Common skill of many modifications and variations for this area
It is obvious for art personnel.Selection and description embodiment are to more preferably illustrate principle of the invention
And practical application, and make one of ordinary skill in the art it will be appreciated that the present invention is suitable so as to design
In the various embodiments with various modifications of special-purpose.
Claims (12)
1. a kind of method for dynamic assignment IP address pond, it is characterised in that including：
When the network attachment for receiving user terminal is asked, sending assignment to PCRF network elements please
Ask, the assignment request includes ID and customer position information, so as to PCRF network elements
It is user terminal distribution IP address pond according to ID and customer position information, and returns to distribution
IP address pond；
For user terminal distributes IP address in the IP address pond of PCRF network elements distribution.
2. method according to claim 1, it is characterised in that sent out to PCRF network elements
After sending assignment to ask, also include：
Whether judgement receives the IP address pond that PCRF network elements are issued in the given time；
If receiving the IP address pond that PCRF network elements are issued in the given time, perform
The step of IP address being distributed in the IP address pond of PCRF network elements distribution for user terminal；
If not receiving the IP address pond that PCRF network elements are issued in the given time, according to
It is that user terminal distributes IP address to access point mode.
3. a kind of method for dynamic assignment IP address pond, it is characterised in that including：
When the assignment for receiving gateway transmission is asked, user's mark is obtained from the assignment request
Know and customer position information, wherein, the assignment request is that gateway is receiving user terminal
What network attachment sent when asking；
It is user terminal distribution IP address pond according to ID and customer position information；
Gateway is handed down in the IP address pond of distribution, so that gateway is in the IP address pond of distribution
For user terminal distributes IP address.
4. method according to claim 3, it is characterised in that according to ID and use
Family positional information is that user terminal includes the step of distributing IP address pond：
User property and the user corresponding with the ID is obtained according to ID inquiry
Grade；
According to the number of addresses in user property, user gradation, customer position information and address pool
It is user terminal distribution IP address pond to measure.
5. a kind of method for dynamic assignment IP address pond, it is characterised in that including：
Judge whether the first gateway is abnormal；
If the first gateway exception, records the state of the first gateway；
When the assignment for receiving the transmission of the second gateway is asked, obtained from the assignment request and used
Family identifies and customer position information, wherein, first gateway and the second gateway are in samely
Reason region, the assignment request is first by the first gateway access business in user terminal
After gateway exception, during by the second gateway access business, what the second gateway sent；
State according to ID, customer position information and the first gateway is user terminal distribution
IP address pond, wherein the IP address pond is the corresponding address pool of the first gateway；
The second gateway is handed down in the IP address pond of distribution, so that the second gateway is in the IP of distribution
For user terminal distributes IP address in address pool.
6. method according to claim 5, it is characterised in that according to ID, use
The state of family positional information and the first gateway is that user terminal includes the step of distributing IP address pond：
User property and the user corresponding with the ID is obtained according to ID inquiry
Grade；
According to the number of addresses in user property, user gradation, customer position information, address pool
And first the state of gateway be user terminal distribution IP address pond.
7. a kind of gateway for dynamic assignment IP address pond, it is characterised in that including request
Transmitting element and allocation unit, wherein：
Request transmitting unit, for when receive user terminal network attachment ask when, to
PCRF network elements send assignment request, and the assignment request includes ID and customer location
Information, according to ID and customer position information is user terminal distribution so as to PCRF network elements
IP address pond, and return to the IP address pond of distribution；
Allocation unit, for being user's end in the IP address pond that PCRF network elements are distributed
End distribution IP address.
8. gateway according to claim 7, it is characterised in that also including recognition unit,
Wherein：
Recognition unit, after in request transmitting unit to the transmission assignment request of PCRF network elements,
Whether judgement receives the IP address pond that PCRF network elements are issued in the given time；
Allocation unit is additionally operable to the judged result according to recognition unit, if in the given time
The IP address pond that PCRF network elements are issued is received, then performs the IP in the distribution of PCRF network elements
The operation of IP address is distributed in address pool for user terminal；If not receiving in the given time
The IP address pond that PCRF network elements are issued, then be that user terminal distributes IP according to point mode is accessed
Address.
9. a kind of PCRF network elements for dynamic assignment IP address pond, it is characterised in that bag
Extraction unit, address pool allocation unit and issuance unit are included, wherein：
Extraction unit, during for being asked in the assignment for receiving gateway transmission, please from the assignment
Middle acquisition ID and customer position information are asked, wherein, the assignment request is that gateway is connecing
What the network attachment for receiving user terminal sent when asking；
Address pool allocation unit, for being user terminal according to ID and customer position information
Distribution IP address pond；
Issuance unit, for the IP address pond that address pool allocation unit is distributed to be handed down into gateway,
So as to gateway distribution IP address pond in for user terminal distribute IP address.
10. PCRF network elements according to claim 9, it is characterised in that address pool point
Include attribute acquisition module and address pool distribute module with unit, wherein：
Attribute acquisition module, for obtaining relative with the ID according to ID inquiry
The user property and user gradation answered；
Address pool distribute module, for according to user property, user gradation, customer position information
And the number of addresses in address pool is user terminal distribution IP address pond.
The 11. PCRF network elements according to claim 9 or 10, it is characterised in that also wrap
State recognition unit and state recording unit are included, wherein：
State recognition unit, for judging whether the first gateway is abnormal；
State recording unit, for the judged result according to state recognition unit, if the first gateway
It is abnormal, then record the state of the first gateway；
Extraction unit is additionally operable to when the assignment for receiving the transmission of the second gateway is asked, from the finger
With acquisition ID and customer position information in request, wherein, first gateway and second
Gateway is in same geographic area, and the assignment request is visited by the first gateway in user terminal
Ask business and after the first gateway exception, during by the second gateway access business, the second gateway hair
Go out；
Address pool allocation unit is additionally operable to according to ID, customer position information and the first gateway
State be user terminal distribution IP address pond, wherein the IP address pond is the first gateway pair
The address pool answered；
Issuance unit is additionally operable to for the IP address pond that address pool allocation unit is distributed to be handed down to second
Gateway, so as to the second gateway distribution IP address pond in for user terminal distribute IP address.
12. a kind of systems for dynamic assignment IP address pond, it is characterised in that including such as weighing
Profit requires the gateway described in 7 or 8 and the PCRF as any one of claim 9-11
Network element.
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