CN105634900B - Extend the method and apparatus of the coverage area of virtual access network - Google Patents
Extend the method and apparatus of the coverage area of virtual access network Download PDFInfo
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Abstract
The present invention provides a kind of in the access network-based control device of infrastructure network provider for dynamically extending the method for the coverage area of the virtual access network of Virtual Network Operator, it the described method comprises the following steps: receiving Attach Request message, the Attach Request message is for requesting for nomadic/dynamic subscriber to be attached to its Virtual Network Operator to be connected;Based on the Attach Request message, in the coverage area for judging the virtual access network whether nomadic/dynamic subscriber is located at the Virtual Network Operator that it to be connected;If nomadic/the dynamic subscriber is not located in the coverage area of the virtual access network, the coverage extension of the virtual access network can be serviced to the region of the nomadic/dynamic subscriber to covering, and reply attachment response message;If nomadic/the dynamic subscriber is located in the coverage area of the virtual access network, attachment response message is replied.
Description
Technical field
The present invention is generally related to virtual access network, more specifically, is related in access net infrastructure network
Extend the method and apparatus of the coverage area of the virtual access network of Virtual Network Operator.
Background technique
Currently, network virtualization has become hot issue, physical access network is shared (that is, being mentioned by infrastructure network
Physical access network is virtually turned to multiple virtual access networks for quotient (Infrastructure Provider, InP)
(VANets)) more interests can not only be brought to infrastructure network provider, and can give virtual access network operation
Quotient brings interests.Virtual access network can be controlled and be managed by Virtual Network Operator (VNO), to provide the industry of differentiation
Business.
In Broadband Forum (BBF), entitled " 1 Analysis of Fixed Access Network Sharing of Stage
(FANS) " SD-351 new projects have been initiated.
In general, the virtual access network of Virtual Network Operator request is that with certain logical topology and have its covering
Range.Once being that it establishes required virtual access nets in physical access network by infrastructure network provider
Network, then logical topology and coverage area cannot dynamically change.
On the other hand, nomadic (nomadism) is the characteristic needed in Broadband Forum, just as described in TR-114
, " wide band multi-business framework must support it is nomadic, that is, allow user in the local access service in addition to its master site ".
Obviously, in order to consider to support potential nomadic user in some regions, although some specific virtual network operation
Quotient may not have user, but the coverage area of the Virtual Network Operator must also be extended it is big as far as possible, to cover
Cover the whole region of fixed user and potential nomadic user.That is, if Virtual Network Operator wants virtually connecing for it
Enter the nomadic characteristic of network support, then the virtual access network of the Virtual Network Operator should have biggish coverage area,
Even if there is no users whithin a period of time for some regions.Therefore, it will cause the waste of resource and generate higher cost.
Summary of the invention
In fact, if the coverage area of the virtual access network of Virtual Network Operator can according to actual use amount and
Dynamic modification, then Virtual Network Operator will obtain better capital expenditures.
In consideration of it, it is an object of the present invention to realize that the coverage area to virtual access network is dynamically expanded
Exhibition.
According to the first aspect of the invention, a kind of access network-based control in infrastructure network provider is provided
In device for dynamically extend Virtual Network Operator virtual access network coverage area method, the method includes with
Lower step: receiving Attach Request message, and nomadic/dynamic subscriber is attached to it to be connected by the Attach Request message for requesting
The Virtual Network Operator connect;Based on the Attach Request message, judge whether the nomadic/dynamic subscriber is located at it to be connected
In the coverage area of the virtual access network of the Virtual Network Operator connect;If nomadic/the dynamic subscriber is not located at described
In the coverage area of virtual access network, then the coverage extension of the virtual access network to covering can be serviced
The region of the nomadic/dynamic subscriber, and reply attachment response message;If nomadic/the dynamic subscriber is located at described virtual
It accesses in the coverage area of network, then replys attachment response message.
According to the second aspect of the invention, a kind of AAA of access network in infrastructure network provider is provided
Method in server for assisting dynamically extending the coverage area of the virtual access network of Virtual Network Operator, the side
Method is the following steps are included: receive the authentication request message from nomadic/dynamic subscriber, including being used in the authentication request message
The identification information of the authentication information of certification and nomadic/dynamic subscriber Virtual Network Operator to be connected;Recognized based on described
Request message is demonstrate,proved, with the nomadic/dynamic subscriber Virtual Network Operator to be connect for including in the authentication request message
Aaa server interaction, with judge the nomadic/dynamic subscriber whether be its Virtual Network Operator to be connected user;Such as
Fruit is the access network-based control device for then sending Attach Request message to the infrastructure network provider, and the attachment is asked
Ask message for requesting the nomadic/dynamic subscriber being attached to its Virtual Network Operator to be connected.
According to the third aspect of the present invention, one kind is provided dynamically to extend in nomadic/dynamic subscriber for triggering
The method of the coverage area of the virtual access network of Virtual Network Operator, the described method comprises the following steps: sending certification and asks
It asks message to the aaa server of the access network of infrastructure network provider, includes for recognizing in the authentication request message
The identification information of the authentication information of card and nomadic/dynamic subscriber Virtual Network Operator to be connected.
According to the fourth aspect of the present invention, a kind of access network-based control in infrastructure network provider is provided
In device for dynamically extend Virtual Network Operator virtual access network coverage area method, the method includes with
Lower step: receiving the extended request message from the Virtual Network Operator, includes that this is virtual in the extended request message
Network operator it is expected the information in the region that the coverage extension of the virtual access network arrives;And by the virtual access
The coverage extension of network is to covering its region for wishing to expand to.
Detailed description of the invention
It, will be more preferable geographical after the description below with reference to a specific embodiment of the invention given by following drawings
The solution present invention, and other objects of the present invention, details, features and advantages will become apparent.In the accompanying drawings:
Fig. 1 shows infrastructure network provider according to an embodiment of the invention and Virtual Network Operator
The network architecture;And
Fig. 2 shows the extensions according to an embodiment of the invention by nomadic/dynamic subscriber's triggering virtually to access net
The method flow diagram of the coverage area of network.
In all the appended drawings, the same or similar reference marker indicates the same or similar element.
Specific embodiment
The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure without the embodiment party that should be illustrated here
Formula is limited.On the contrary, these embodiments are provided so that this disclosure will be more thorough and complete, and can be by the disclosure
Range is fully disclosed to those skilled in the art.
Fig. 1 shows infrastructure network provider (InP) according to an embodiment of the invention and virtual network fortune
Seek the network architecture of quotient (VNO).Exemplary network shown in fig. 1 includes InP access network and VNO network (that is, shown in Fig. 1
VNO 1 out).InP accesses network for realizing the virtual access network structure for providing network fragment and being according to its demand VNO
Build the functions such as corresponding logical topology.It includes software defined network (SDN) controller in network that InP, which is accessed, realizes access net
All control plane affairs of network.SDN controller has the server to other auxiliary (for example, aaa server, DHCP service
Device, the other application server of similar strategic server etc.) interface.SDN server is with the following functions: (1) control/management
Access the all-network unit in network;(2) it calculates for the virtual access network of VNO and distributes Internet resources, and in physics
Corresponding logical topology is established on access network;(3) virtual access network is updated as needed for specific VNO.InP accesses net
It further include control/management server of other auxiliary in network, (for example, aaa server, Dynamic Host Configuration Protocol server is similar for these servers
The other application server of strategic server etc.) it helps to control and manage physical access network.Aaa server in InP can
It is alternatively contacted with the aaa server of VNO, for further checking and authenticating.It further includes data that InP, which is accessed in network,
The network unit of plane, such as access node (AN), switch etc., these network units are controlled by SDN controller/are managed.VNO
Virtual access network established in these network units as needed.
VNO network includes at least one virtual access network from InP access network.VNO network has their own
Logic control/management platform, including aaa server, Dynamic Host Configuration Protocol server etc., these servers for control/manage VNO network and
The user of its virtual access network and the VNO.
In the network architecture of Fig. 1, the virtual access network of VNO 1 covers the user namely access node AN of its fixation
2 and its under the user m that connects and access node AN 3 and its under the user n that connects.And for access node AN 1, do not connect down
Fixed user, therefore, the virtual access network of VNO 1 are not necessarily to its coverage extension to covering AN 1.Of the invention
In each embodiment, once a certain nomadic/dynamic subscriber, such as nomadic/dynamic subscriber i have dynamic demand to the business of VNO 1,
So the coverage area of the virtual access network of VNO 1 can be dynamically expanded to covering and can service that this is nomadic/dynamically use
The region at family.
Hereinafter with reference to Fig. 2 and combine Fig. 1 to the virtual access net for dynamically adjusting Virtual Network Operator of the invention
One specific embodiment of the coverage area of network is described.
In this embodiment, nomadic/dynamic subscriber i is moved to a hot spot, which not connecing in the virtual of VNO 1
Enter in the coverage area of network (that is, the virtual access network of VNO 1 not yet extends to covering access node AN 1).Once should
Nomadic/dynamic subscriber i attempts to obtain business from VNO 1, then it will be attached to InP access network, and triggers to VNO's 1
The update of the coverage area of virtual access network.
Referring to Fig. 2, first in step s 201, user i sends authentication request message to access node AN 1.The certification is asked
Ask include in message authentication information (for example, account, password etc.) and the user i VNO to be connected to for certification mark
Know information (for example, identification information of VNO 1).
After access node AN 1 receives the authentication request message, in step S202, it is based on the authentication request message, hair
Send access request message to the aaa server of InP.For example, be in step S202 will be based on the certification request of 802.1x agreement
Message is converted into sending it to the aaa server of InP after the access request message based on Radius agreement.
After the aaa server of InP receives the access request message, in step S203, the user i and some spy are determined
The relationship of VNO is determined, in this way, the aaa server of InP just knows to contact with the aaa server of which VNO with further progress
Certification.In this embodiment, due to carried in authentication request message be VNO 1 identification information, the AAA of InP
Server judges that user i is the user of VNO 1, in this way, just knowing to be contacted with the aaa server of VNO 1.
Then, in step S204, the aaa server of InP joins with the aaa server of corresponding VNO (for example, VNO 1)
System further to be authenticated, namely judge user i whether the user for being the corresponding VNO.It is understood that due to
Judge that user i is the user of VNO 1 in above-mentioned steps S203, therefore, the aaa server of InP and VNO 1 in step S204
Aaa server contacted, with further judge the user i whether the user for being the VNO 1.
If the authentication result between the aaa server of InP and the aaa server of VNO 1 is the use that user i is VNO 1
Family, then the aaa server of InP sends Attach Request message (Attachment Request) to SDN control in step S205
User i is attached to VNO 1 for requesting by device processed.Certainly, if the authentication result in above-mentioned steps S204 is that user i is not
The user of VNO 1, then, the aaa server of InP will refuse the access request of user i.
After SDN controller receives Attach Request message, in step S206, the virtual access network of VNO 1 is judged
Whether coverage area has covered the region that can service the user i, such as, if cover access node AN 1.
If the coverage area of the virtual access network of VNO 1 does not cover the region that can service the user i, in step
In rapid S207, the coverage extension of the virtual access network of VNO 1 to covering can be serviced the user i's by SDN controller
Region, for example, extending to covering AN 1.
Specifically, SDN controller is that user i accesses virtual access network selection path and computation bandwidth first, then
Corresponding resource is distributed, the coverage extension of the virtual access network of VNO 1 can be serviced to the area of the user i to covering
Domain.Then, the information such as forward rule are sent to each node in selected path by command messages by SDN controller,
For example, AN 1.
In one example, SDN controller can further judge whether predetermined policy meets, which can be
Such as across same or similar path to the virtual link of the virtual access network of VNO 1 in the region where the user i
Whether number reaches predetermined value.If having reached the predetermined value, the coverage area of the current virtual access network of VNO 1 is expanded
It opens up to covering and is capable of the region of the server user i;If the not up to predetermined value, establishes virtual link to connect user i
To the virtual access network of VNO 1.The predetermined policy can be pre-set by VNO 1, for example, VNO 1 it is pre-set that
The topology in a region requires, only when the nomadic/dynamic subscriber in that region and fixed user reach predetermined number, SDN control
Device extends the coverage area of the current virtual access network of VNO 1 to the region, and the topology of the virtual access network in the region
It is realized by deciding through consultation in advance.
It is understood that predetermined policy is not limited to above-mentioned this, the number of such as nomadic/dynamic subscriber i can also be
Whether reach predetermined amount according to bandwidth.When the data bandwidth of nomadic/dynamic subscriber i reaches predetermined amount, SDN controller is by VNO 1
The coverage extension of current virtual access network be capable of the region of the server user i to covering;And when it is nomadic/dynamically use
When the data bandwidth of family i is not up to predetermined amount, then virtual link is established so that user i to be connected to the current virtual of VNO 1 access net
Network.
It should be noted that in the present invention, virtual link will be established between the virtual access network of user i and VNO 1
The current coverage range for the virtual access network by VNO 1 being also defined as in step S207, which extends to covering, can service the use
A kind of form in the region of family i.
Then, in step S208, SDN controller, which sends to adhere to, determines message (Attachment ACK) to the AAA of InP
Server.
Certainly, if judging result in above-mentioned steps S206 be the coverage area of the virtual access network of VNO 1
Covering can service the region of the user i, then, directly continue to step S208.
After the aaa server of InP receives the determining message of attachment, in step S209, the aaa server transmission of InP is connect
Enter received message to access node AN 1, also, in step S210, sends certification success message to user i.
So far, user i is attached to the virtual access network of VNO 1.In the virtual access network, VNO 1 can be right
User i carries out operation defined in it, and provides service to the user i.
Fig. 2 shows specific embodiment be for dynamically adjusting the void of VNO 1 based on the triggering of nomadic/dynamic subscriber
The coverage area of quasi- access network, it is to be understood that in the alternative embodiment, can also be based on the triggering of VNO 1 itself
To dynamically adjust the coverage area of its virtual access network.For example, control/management platform in VNO 1 can send one
Request message is to SDN controller.It may include the information in the region that the VNO 1 expectation expands in the request message, in the expansion
The information such as the bandwidth between the number and dummy node of the dummy node of the deployed in areas of exhibition.SDN controller is based on the expansion
Request message is opened up, by the coverage extension of the virtual access network of the VNO 1 to covering the expectation indicated in the request message
The region expanded to.It is understood that the request message directly can be sent to SDN control by the control of VNO 1/management platform
Device processed;Or in view of factors such as safety, forwarding can also be realized by the network equipment that InP is accessed in network, thus
It avoids for SDN controller being directly exposed to outer and under attack.
In one or more exemplary designs, this can be realized with hardware, software, firmware or their any combination
The application function.If realized with software, can be stored the function as one or more instruction or code
On a computer-readable medium, or as on computer-readable medium one or more instructions or code transmit.It calculates
Machine readable medium includes computer storage media and communication media, and wherein communication media includes facilitating computer program from one
Place is transmitted to the arbitrary medium of another place.Storage medium can be general or specialized computer-accessible any available
Medium.This computer-readable medium may include, such as, but not limited to, RAM, ROM, EEPROM, CD-ROM or other CDs
Store equipment, disk storage equipment or other magnetic storage apparatus, either can be used for general or specialized computer or it is general or
The form of the addressable instruction of application specific processor or data structure come code modules desired by carrying or store it is any its
Its medium.Also, it is any to connect the computer-readable medium that be known as.For example, if software be using coaxial cable,
The wireless technology of optical fiber cable, twisted pair, Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave etc is come from net
It stands, server or other remote sources transmission, then coaxial cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless
The wireless technology of electricity and microwave etc is also included in the definition of medium.
General processor, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate can be used
Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or for executing sheet
Any combination of function described in text come realize or execute combine the disclosure described in various illustrative logical blocks, module and
Circuit.General processor can be microprocessor, alternatively, processor is also possible to any conventional processor, controller, micro-control
Device or state machine processed.Processor also can be implemented as calculating the combination of equipment, for example, the combination of DSP and microprocessor, multiple
The combination or any other such structure of microprocessor, one or more microprocessors and DSP core.
Those of ordinary skill in the art should also understand that, the various illustrative logics described in conjunction with embodiments herein
The combination of electronic hardware, computer software or both may be implemented into block, module, circuit and algorithm steps.In order to understand earth's surface
Show this interchangeability between hardware and software, various illustrative components, block, module, circuit and step are enclosed above
General description has been carried out around its function.Hardware is implemented as this function and is also implemented as software, is depended on specific
Using and apply design constraint over the whole system.Those skilled in the art can be directed to every kind of specific application, to become
Logical mode realizes described function, and still, this realization decision should not be interpreted as causing a departure from the scope of this disclosure.
The above description of the disclosure is for can be realized any those of ordinary skill of this field or using the present invention.It is right
For those of ordinary skill in the art, the various modifications of the disclosure be will be apparent from, and generality defined herein
Principle can also be applied to other deformations in the case where without deviating from the spirit and scope of the disclosed invention.Therefore, the present invention is simultaneously
It is not limited to example and design as described herein, but it is consistent with the widest scope of principle disclosed herein and novel features.
Claims (15)
1. a kind of be used to dynamically extend virtual network operation in the access network-based control device of infrastructure network provider
The method of the coverage area of the virtual access network of quotient, the described method comprises the following steps:
Attach Request message is received, the Attach Request message is for requesting for nomadic user to be attached to its void to be connected
Quasi- network operator;
It is based on the Attach Request message, judges whether the nomadic user is located at the Virtual Network Operator that it to be connected
Virtual access network coverage area in;
If the nomadic user is not located in the coverage area of the virtual access network, by the virtual access
The coverage extension of network can service the region of the nomadic user to covering, and reply attachment response message;
If the nomadic user is located in the coverage area of the virtual access network, attachment response message is replied.
2. the method according to claim 1, wherein by the coverage extension of the virtual access network to covering
The step of lid can service the region of the nomadic user further comprises:
Judge whether predetermined policy meets;
If the predetermined policy meets, the coverage extension of the virtual access network to covering can be serviced into institute
State the region of nomadic user;
If the predetermined policy is unsatisfactory for, virtual chain is established between the nomadic user and the virtual access network
Road.
3. according to the method described in claim 2, it is characterized in that, the predetermined policy includes any one of following:
The number of virtual link of the same or similar path to the virtual access network is crossed in the nomadic user region
Whether mesh reaches predetermined value;
Whether the data bandwidth of the nomadic user reaches predetermined amount.
4. a kind of dynamically extend virtual net for assisting in the aaa server of the access network of infrastructure network provider
The method of the coverage area of the virtual access network of network operator, the described method comprises the following steps:
The authentication request message from nomadic user is received, includes the authentication information for certification in the authentication request message
The identification information for the Virtual Network Operator to be connected with the nomadic user;
It is based on the authentication request message, with the nomadic user virtual net to be connect for including in the authentication request message
Network operator aaa server interaction, with judge the nomadic user whether be its Virtual Network Operator to be connected use
Family;
If it is, the access network-based control device of Attach Request message to the infrastructure network provider is sent, so as to
It is described nomadic the coverage extension of the virtual access network to covering can be serviced based on the Attach Request message
The region of user, the Attach Request message are used to request for the nomadic user to be attached to its virtual network to be connected fortune
Seek quotient.
5. according to the method described in claim 4, it is characterized in that, further comprising the steps of:
Receive the attachment response message from the controller;
Certification success message is sent to the nomadic user.
6. a kind of covering model for being used to trigger the virtual access network for dynamically extending Virtual Network Operator in nomadic user
The method enclosed, the described method comprises the following steps:
The aaa server for accessing network of authentication request message to infrastructure network provider is sent, the certification request disappears
It include the identification information of the authentication information for certification and the nomadic user Virtual Network Operator to be connected in breath, with
Toilet states aaa server in the case where the nomadic user is the user of its Virtual Network Operator to be connected, to institute
The access network-based control device for stating infrastructure network provider sends Attach Request message, for requesting the nomadic user
Be attached to its Virtual Network Operator to be connected, so as to based on the Attach Request message come by the virtual access network
Coverage extension to covering can service the region of the nomadic user.
7. according to the method described in claim 6, it is characterized in that, further comprising the steps of:
Receive the certification success message from the aaa server.
8. a kind of be used to dynamically extend virtual network operation in the access network-based control device of infrastructure network provider
The method of the coverage area of the virtual access network of quotient, the described method comprises the following steps:
The extended request message from the Virtual Network Operator is received, includes the virtual net in the extended request message
The information in the region that the coverage extension of the virtual access network arrives it is expected by network operator;
By the coverage extension of the virtual access network to covering its region for wishing to expand to.
9. a kind of be used to dynamically extend virtual network operation in the access network-based control device of infrastructure network provider
The device of the coverage area of the virtual access network of quotient, described device include:
First receiving unit, for receiving Attach Request message, the Attach Request message adheres to nomadic user for requesting
The Virtual Network Operator to be connected to it;
First judging unit judges whether the nomadic user is located at it to be connected for being based on the Attach Request message
Virtual Network Operator virtual access network coverage area in;
First expanding element, if be not located in the coverage area of the virtual access network for the nomadic user,
The coverage extension of the virtual access network can then be serviced to the region of the nomadic user to covering, and reply attachment
Response message;
First transmission unit, if be located in the coverage area of the virtual access network for the nomadic user,
Reply attachment response message.
10. device according to claim 9, which is characterized in that first expanding element is also used to:
Judge whether predetermined policy meets;
If the predetermined policy meets, the coverage extension of the virtual access network to covering can be serviced into institute
State the region of nomadic user;
If the predetermined policy is unsatisfactory for, virtual chain is established between the nomadic user and the virtual access network
Road.
11. a kind of virtual for assisting dynamically extending in the aaa server of the access network of infrastructure network provider
The device of the coverage area of the virtual access network of network operator, described device include:
Second receiving unit includes using in the authentication request message for receiving the authentication request message from nomadic user
In the authentication information of certification and the identification information of the nomadic user Virtual Network Operator to be connected;
First authentication unit, for based on the nomadic user for including in the authentication request message, with the authentication request message
The aaa server interaction for the Virtual Network Operator to be connected, to judge whether the nomadic user is its void to be connected
The user of quasi- network operator;
Second transmission unit, for if it is, sending the access of Attach Request message to the infrastructure network provider
Network-based control device, extremely to be covered the coverage extension of the virtual access network based on the Attach Request message
The region of the nomadic user can be serviced, the nomadic user is attached to it for request and is wanted by the Attach Request message
The Virtual Network Operator of connection.
12. device according to claim 11, which is characterized in that further include:
Third receiving unit, for receiving the attachment response message from the controller;
Third transmission unit, for sending certification success message to the nomadic user.
13. a kind of covering model for being used to trigger the virtual access network for dynamically extending Virtual Network Operator in nomadic user
The device enclosed, described device include:
4th transmission unit, for sending the AAA service for accessing network of authentication request message to infrastructure network provider
Device includes the virtual network to be connected for the authentication information of certification and nomadic user fortune in the authentication request message
The identification information of quotient is sought, so that the aaa server is its Virtual Network Operator to be connected in the nomadic user
In the case where user, the access network-based control device of Xiang Suoshu infrastructure network provider sends Attach Request message, is used for
The nomadic user is attached to its Virtual Network Operator to be connected by request, so as to based on the Attach Request message come
The coverage extension of the virtual access network can be serviced to the region of the nomadic user to covering.
14. device according to claim 13, which is characterized in that further include:
4th receiving unit, for receiving the certification success message from the aaa server.
15. a kind of be used to dynamically extend virtual network operation in the access network-based control device of infrastructure network provider
The device of the coverage area of the virtual access network of quotient, described device include:
5th receiving unit, for receiving the extended request message from the Virtual Network Operator, the extended requests disappear
It include the information in the region that the Virtual Network Operator it is expected that the coverage extension of the virtual access network arrives in breath;
Second expanding element, for by the coverage extension of the virtual access network to covering its area for wishing to expand to
Domain.
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CN103516760A (en) * | 2012-06-28 | 2014-01-15 | 上海贝尔股份有限公司 | Virtual network system accessing method, device and system |
CN103716213A (en) * | 2012-09-29 | 2014-04-09 | 上海贝尔股份有限公司 | Method for operation in fixed access network and method for operation in user equipment |
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CN103166909A (en) * | 2011-12-08 | 2013-06-19 | 上海贝尔股份有限公司 | Access method and device and system of virtual network system |
CN103516760A (en) * | 2012-06-28 | 2014-01-15 | 上海贝尔股份有限公司 | Virtual network system accessing method, device and system |
CN103716213A (en) * | 2012-09-29 | 2014-04-09 | 上海贝尔股份有限公司 | Method for operation in fixed access network and method for operation in user equipment |
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