CN105637918A - Implementation device, method and system for mobile network flattening - Google Patents

Implementation device, method and system for mobile network flattening Download PDF

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Publication number
CN105637918A
CN105637918A CN201480033647.2A CN201480033647A CN105637918A CN 105637918 A CN105637918 A CN 105637918A CN 201480033647 A CN201480033647 A CN 201480033647A CN 105637918 A CN105637918 A CN 105637918A
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virtual machine
context information
equipment
access network
network equipment
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CN201480033647.2A
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CN105637918B (en
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李岩
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Abstract

Provided are an implementation device, method and system for mobile network flattening. A generalized network device may be used to implement a flattened mobile network, thereby optimizing a transmission path and increasing transmission efficiency. A method for an access network device side comprises: an access network device establishes a wireless bearer with a user device, and generates user device context information; the access network device receives a call command used for indicating a remote process for creating a virtual machine, the call command being sent by a controller of a cloud system; the access network device calls a local management program, creates the virtual machine, establishes a connection between the virtual machine and a local virtual switch, generates virtual machine context information, and associates the virtual machine context information with the user device context information.

Description

Device, method and system are realized in a kind of mobile network's flattening Technical field
The present invention relates to mobile communication technology field, more particularly to device, method and system are realized in a kind of mobile network's flattening.
Background technology
In 3G (Third Generation) Moblie standardization body (3rd Generation Partnership Project, 3GPP) the Standard Edition R8 stages, developed a kind of brand-new evolvement network, its system architecture as shown in figure 1, including：Universal land radio access web (the Evolved Universal Terrestrial Radio Access Network of evolution, E-UTRAN), mobility management entity (Mobility Management Entity, MME), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data Network Gateway,) and home subscriber server (Home Subscriber Server P-GW, HSS), wherein
E-UTRAN, for realizing the wireless relevant function of all and evolvement network；
MME, is responsible for the mobile management of chain of command, including user context information and mobile status management, distributing user temporary identifications (Temporary Mobile Subscriber Identity, TMSI) etc.；
S-GW, is the forwarding surface anchor point between 3GPP access networks, terminates E-TURAN interface；
P-GW, is the forwarding surface anchor point between 3GPP access networks and non-3GPP access network, and external packet data networks (Packet Data Network, PDN) interface；
HSS, for storing user subscription information.
The network element of MME, S-GW, P-GW and HSS usually as core net.
As shown in fig.2, in the system architecture based on above-mentioned evolvement network, UE access Evolved Packet Core (Evolved Packet Core, EPC), and it is as follows with the flow that outer data network sets up connection：
S201, UE initiate network attachment flow；
S202, enode b (Evolved Node B, eNB) are received after the message, are selected MME and are forwarded the message to MME；
S203, MME are authenticated authorizing to the UE, after mandate passes through, MME selection gateways, including S-GW and P-GW, sends to S-GW and creates conversation request message；
It is omitted here the interaction with HSS.
S204, S-GW are received after the establishment conversation request message, and the message is forwarded to P-GW, wherein, it is the UE downlink tunnel marks distributed and user plane address that the message, which contains S-GW,；
S205, P-GW are received after the establishment conversation request message, user context information is created for the UE, Internet protocol (Internet Protocol, IP) address is distributed, and be UE distribution uplink tunnel marks, return and create conversational response message to S-GW；
S206, S-GW are received after the establishment conversational response message, GPRS Tunnel Protocol (the GPRS Tunnelling Protocol set up between S-GW and P-GW, GTP) forwarding surface (GTP User Plane, GTP-U) tunnel and distribute S-GW uplink tunnel mark, return to the establishment conversational response message to MME；
S207, MME initiate initial context to eNB and set up request message, the message is in addition to the uplink tunnel distributed comprising S-GW identifies, is sent to UE parameter (such as IP address), also include other information, such as UE Security Context Information (being used to be wirelessly transferred encryption between eNB and UE), UE roaming limitation list (being moved for limiting UE between which eNB) etc.；
Radio bearer is set up between S208, eNB and UE, there is one-to-one relationship in the GTP-U tunnels that radio bearer and gateway are set up；
S209, eNB return to initial context to MME and set up response message, the downlink tunnel mark that the message package is distributed containing eNB；
S210, MME send modification bearer messages to S-GW, and the message package is identified containing the downlink tunnel that eNB is distributed, and so far S-GW establishes the GTP-U tunnels between S-GW and eNB, forms from eNB to S-GW to the end-to-end tunnel between P-GW.
After UE access EPC networks, the flow of specific user plane message forwarding is as follows：After P-GW receives UE downlink message from external network (such as Internet), first according to the purpose IP address in message, determine which UE the messages is sent to, then IP messages encapsulation GTPU protocol headers are sent to S-GW, the GTPU protocol headers contain the downlink tunnel mark of S-GW IP address, UDP port number and S-GW distribution.S-GW is received after the message from corresponding downlink tunnel, according to the incidence relation between tunnel ID, is changed the Tunnel Identifier and destination address of GTPU protocol headers, is then sent GTPU messages to eNB.ENB receives report Wen Hou, determines which radio bearer to be sent to UE from according to downlink tunnel mark.
In the upstream direction, eNB is received after the message of UE transmissions, according to radio bearer and the corresponding relation in GTPU tunnels, selection uplink tunnel mark, and is encapsulated GTPU protocol headers, is then sent to S-GW.S-GW is received after message from corresponding uplink tunnel, according to the incidence relation between tunnel ID, is changed the Tunnel Identifier and destination address of GTPU protocol headers, is then sent GTPU messages to P-GW.P-GW removes GTPU encapsulation, message is sent into PDN after message is received.
As shown in fig.3, due to UE mobility, when UE is switched to another eNB from an eNB, its basic procedure is as follows：
Before the handover, end-to-end tunnel is established between UE and P-GW, is prepared subsequently through switching and hand-off execution process, UE and target eNB establishes wireless connection.
S301, target eNB and UE are set up after wireless connection, indicate that MME carries out path switching, wherein, target eNB downlink tunnel mark and user plane address is carried in the handover request message of path；
S302, MME send modification bearing request message to S-GW, and the modification bearing request message contains the downlink tunnel mark of target eNB distribution；
So far S-GW has been set up the GTP-U tunnels between S-GW and target eNB；
S303, S-GW return to modification bearing response message to MME；
S304, MME return path switching request acknowledgement message give target eNB.
It should be noted that switchings of the also UE between eNB further relates to a lot of other switching flows, such as S-GW switchings, other switching flows refer to prior art, repeated no more here.
Realized and connected by end-to-end GTP_U tunnels from above-mentioned two flows of S201-S210, S301-S304 can be seen that existing mobile network, between UE and PDN, and UE mobility then needs to realize by changing the mark in GTP-U tunnels.Which results in following two problems：
Firstth, all data of UE must all pass through P-GW, UE and other UE (are such as deployed in the business near S-GW) during other service interactions being deployed between P-GW and base station, it is required for the anchor point by concentration, path transmission not enough optimizes, cause transmission time long, poor user experience, causes the waste of unnecessary network transmission resource.
Secondth, setting up GTP-U tunnels is needed by GTP-C protocol realizations, and this agreement is only applicable to EPC networks, cause S-GW and P-GW to customize realization, and the gateway customized is few due to quantity, its cost is higher than general interchanger and router, it is required for, by P-GW, also causing P-GW is realized complicated, improving the lower deployment cost of current EPC networks additionally, due to all flows.
The content of the invention
Device, method and system are realized the embodiments of the invention provide a kind of mobile network's flattening, the mobile network of flattening is realized using the unitized network equipment, solve the data transfer that the data anchor point concentrated in existing mobile network brings not enough to optimize, the problem of network equipment cost is too high.
In a first aspect, the embodiment of the present invention provides a kind of device of realizing of mobile network's flattening, including：
First processing units, for setting up radio bearer with user equipment, generate customer equipment context information；
First receiving unit, for receiving the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent；
Second processing unit, for calling local hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with customer equipment context information.
With reference in a first aspect, in the first possible implementation, the contextual information of the virtual machine includes the MAC Address of virtual machine.
With reference to the first possible implementation of first aspect, in second of possible implementation, the contextual information of the virtual machine also includes the maximum bandwidth value of virtual machine；The maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
With reference in a first aspect, in the third possible implementation, the Remote Procedure Call instruction includes the Mirror Info of the virtual machine context information on the access network equipment of source；The Mirror Info includes the MAC Address of the virtual machine on the access network equipment of source；
Generate virtual machine contextual information when, the second processing unit specifically for：
According to the Mirror Info of the virtual machine context information on the source access network equipment, virtual machine context information is generated, and the MAC Address of designated virtual machine is the virtual machine on the source access device MAC Address.
With reference in a first aspect, in the 4th kind of possible implementation, the Remote Procedure Call instruction includes the virtual machine mark of equipment of the core network distribution；
When virtual machine context information and customer equipment context information are associated, the second processing unit specifically for：
Identified according to the virtual machine, virtual machine context information is associated with customer equipment context information.
With reference to the third possible implementation of first aspect or first aspect, in the 5th kind of possible implementation, in addition to：
Second receiving unit, for receiving the message that user equipment is sent by radio bearer；
First determining unit, for the incidence relation according to the corresponding customer equipment context information of the radio bearer, and the customer equipment context information and virtual machine context information, determines the corresponding virtual machine of the user equipment and the MAC Address of the virtual machine；
Encapsulation unit, the message sent for the MAC Address using the virtual machine to user equipment is packaged；
First transmitting element, for being sent the message after encapsulation to target device by local virtual interchanger.
With reference to the third possible implementation of first aspect or first aspect, in the 6th kind of possible implementation, in addition to：
3rd receiving unit, the message of user equipment is sent to for being received by local virtual interchanger；
Second determining unit, for the corresponding virtual machine context information of MAC Address according to the message, and the incidence relation of the virtual machine context information and customer equipment context information, determine the corresponding user equipment of MAC Address and the corresponding radio bearer of customer equipment context information of the virtual machine；
Decapsulation unit, for the message for being sent to user equipment of reception to be decapsulated；
Second transmitting element, sends the message after decapsulation to the user equipment of determination for the radio bearer by determination.
Second aspect, the embodiment of the present invention provides a kind of device of realizing of mobile network's flattening, including：
Indicating member, for indicating that access network equipment generates customer equipment context information；
Transmitting element, for sending an instruction to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
With reference to second aspect, in the first possible implementation, the instruction is application programming interface API instructions, and the API instructions include access network equipment mark and virtual machine mark.
The third aspect, the embodiment of the present invention provides a kind of implementation method of mobile network's flattening, including：
Access network equipment sets up radio bearer with user equipment, generates customer equipment context information；
What the controller that access network equipment receives cloud system was sent is used for the Remote Procedure Call instruction that instruction creates virtual machine；
Access network equipment calls local hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with customer equipment context information.
With reference to the third aspect, in the first possible implementation, the contextual information of the virtual machine includes the media access control layer MAC Address of virtual machine.
With reference to the first possible implementation of the third aspect, in second of possible implementation, the contextual information of the virtual machine also includes the maximum bandwidth value of virtual machine；The maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
With reference to the third aspect, in the third possible implementation, the Remote Procedure Call instruction includes the Mirror Info of the virtual machine context information on the access network equipment of source；The Mirror Info includes the MAC Address of the virtual machine on the access network equipment of source；
The contextual information of virtual machine is generated, including：
According to the Mirror Info of the virtual machine context information on the source access network equipment, virtual machine context information is generated, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the source access device.
With reference to the third aspect, in the 4th kind of possible implementation, the Remote Procedure Call instruction includes the virtual machine mark of equipment of the core network distribution；
Virtual machine context information is associated with customer equipment context information, including：
Identified according to the virtual machine, virtual machine context information is associated with customer equipment context information.
With reference to the third possible implementation of the third aspect or the third aspect, in the 5th kind of possible implementation, in addition to：
Access network equipment receives the message that user equipment is sent by radio bearer；
Access network equipment determines the corresponding virtual machine of the user equipment and the MAC Address of the virtual machine according to the incidence relation of the corresponding customer equipment context information of the radio bearer, and the customer equipment context information and virtual machine context information；
The message that access network equipment is sent using the MAC Address of the virtual machine to user equipment is packaged；
Access network equipment is sent the message after encapsulation to target device by local virtual interchanger.
With reference to the third possible implementation of the third aspect or the third aspect, in the 6th kind of possible implementation, in addition to：
Access network equipment receives the message for being sent to user equipment by local virtual interchanger；
Access network equipment is according to the corresponding virtual machine context information of MAC Address of the message, and the incidence relation of the virtual machine context information and customer equipment context information, determine the corresponding user equipment of MAC Address and the corresponding radio bearer of customer equipment context information of the virtual machine；
Access network equipment decapsulates the message for being sent to user equipment of reception；
Access network equipment is sent the message after decapsulation to the user equipment of determination by the radio bearer of determination.
Fourth aspect, the embodiment of the present invention provides a kind of implementation method of mobile network's flattening, including：
Equipment of the core network indicates access network equipment generation customer equipment context information；
Equipment of the core network sends an instruction to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
With reference to fourth aspect, in the first possible implementation, the instruction is application programming interface API instructions, and the API instructions include access network equipment mark and virtual machine mark.
5th aspect, the embodiment of the present invention provides a kind of system of realizing of mobile network's flattening, including：
Equipment of the core network, for indicating that access network equipment generates customer equipment context information；An instruction is sent to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information；
Access network equipment, for setting up radio bearer with user equipment, generates customer equipment context information；Receive the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent；Local hypervisor is called, virtual machine is created, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, virtual machine context information is associated with customer equipment context information.
In the embodiment of the present invention, give a kind of new mobile network architecture, wireless communication system and cloud system are combined in the framework, base station is integrated with the function of Hypervisor and virtual switch, the network equipments such as physical switches/router, IP gateway do not need the tunnel encapsulation and control panel agreement of existing mobile network, and the mobile network of flattening just can be realized using the unitized network equipment.All networking connection managements are managed collectively by controller in network, between UE, between UE and outer data network, the message of the MAC Address of the virtual machine by encapsulating UE simulations is communicated, it is not necessary to the anchor point concentrated, so as to optimize transmission path, efficiency of transmission is improved.
Brief description of the drawings
Fig. 1 is the system architecture schematic diagram of evolvement network under prior art；
Fig. 2 sets up the flow chart of network connection for UE under prior art；
The flow chart that Fig. 3 switches between the base station for UE under prior art；
Fig. 4 is a kind of Organization Chart of flattening mobile network provided in an embodiment of the present invention；
Fig. 5 realizes structure drawing of device for a kind of mobile network's flattening provided in an embodiment of the present invention；
Fig. 6 realizes structure drawing of device for a kind of mobile network's flattening provided in an embodiment of the present invention；
Fig. 7 is a kind of structure chart of access network equipment provided in an embodiment of the present invention；
Fig. 8 is a kind of structure chart of equipment of the core network provided in an embodiment of the present invention；
Fig. 9 is the flow chart that mobile network's flattening is realized in a kind of access network equipment side provided in an embodiment of the present invention；
Figure 10 is the flow chart that mobile network's flattening is realized in a kind of equipment of the core network side provided in an embodiment of the present invention；
Figure 11 sets up the flow chart of network connection for UE in a kind of flattening mobile network provided in an embodiment of the present invention；
The flow chart switched between the base station that Figure 12 is UE in a kind of flattening mobile network provided in an embodiment of the present invention.
Embodiment
Device, method and system are realized the embodiments of the invention provide a kind of mobile network's flattening, the mobile network of flattening can be realized using the unitized network equipment, and then solve in existing mobile network, the problem of path transmission that anchor point is brought for being required to concentrate when UE and other UE or outer data network interaction not enough optimizes, transmission time is long.
The embodiment of the present invention proposes a kind of new mobile network architecture, refering to shown in Fig. 4, new mobile network architecture includes controller, physical switches/router, physical server, IP gateway, MME, HSS and the base station for being integrated with special management program (Hypervisor) function and virtual switch function, wherein：
MME, the mobile management except being responsible for chain of command, including user context information and mobile status are managed, outside the existing capability such as distributing user TMSI, also to indicate the virtual machine that controller is created and migration UE is simulated；
The base station of integrated special Hypervisor functions and virtual switch function, in addition to completing the wireless access function in existing mobile network, in addition it is also necessary to which the virtual machine that UE is simulated is created according to the instruction of controller；
Controller, by being interacted with the Hypervisor run on base station, creates multiple virtual machines on base station；
Optional network element device in physical server, new mobile network architecture, can run multiple virtual machines thereon, and virtual machine completes some network functions virtualization (Network Function Virtualization, NFV) Some network service functions of definition, such as deep message detection (Deep Packet Inspection, DPI), are cached (Cache), fire wall (Firewall) etc.；
Physical switches/router, are realized between the UE virtual machine of simulation (UE) on different base station, the communication between UE and network service (virtual machine on physical server)；
HSS is identical with existing capability for storing user subscription information；
IP gateway, is the interface of mobile network and outer data network.
The network connection management of new mobile network is managed collectively by controller, the virtual machine of different UE simulations on same base station is all connected on the virtual switch of the base station, virtual switch on each base station is connected to physical switches by the network interface of base station, and physical switches are connected to IP gateway.In this way, the communication between the different UE of same base station, is realized by the virtual switch of base station；Communication between the different UE of different base station, is realized by physical switches and virtual switch；When only being communicated with outer data network, data traffic is just needed by IP gateway.So it is achieved that a kind of mobile network of flattening.
Technical solution of the present invention is illustrated with reference to Figure of description and each embodiment.
Embodiment one
As shown in figure 5, realizing device the embodiments of the invention provide a kind of mobile network's flattening, the device can be deployed on access network equipment, including：
First processing units 501, for setting up radio bearer with UE, generate UE contextual informations.
First receiving unit 502, for receiving the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent.
Second processing unit 503, for calling local Hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with UE contextual informations.
Wherein, the contextual information of above-mentioned virtual machine at least includes the MAC Address of virtual machine.
Also, the contextual information of virtual machine can also include the maximum bandwidth value of virtual machine, the maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
Particularly, when UE is not first access wireless network, but another access network equipment is switched to from an access network equipment in wireless network, then the first receiving unit 502 in target access network equipment The Mirror Info of the virtual machine context information on the access network equipment of source can be included in the Remote Procedure Call instruction that the controller received is sent, the Mirror Info necessarily contains the MAC Address of the virtual machine on the access network equipment of source.So, when generating the contextual information of virtual machine, second processing unit 503 can generate virtual machine context information according to the Mirror Info of the virtual machine context information on the access network equipment of source, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the access device of source.Because the virtual machine in target access network equipment is remained and the virtual machine identical MAC Address on the access network equipment of source, so the message that target access network equipment is forwarded to by source access network equipment can be received and be handled automatically, so as to ensure that the conversation continuity communicated between UE and outer data network and other UE.
It is in order to guarantee that the virtual machine context information and specific UE on access network equipment is context-sensitive, the virtual machine mark of equipment of the core network distribution is included in the Remote Procedure Call instruction that controller is sent.Therefore, when virtual machine context information and UE contextual informations are associated, second processing unit 503 can be identified according to the virtual machine, and virtual machine context information is associated with UE contextual informations.
Said apparatus also includes：
Second receiving unit 504, for receiving the message that UE is sent by radio bearer.
First determining unit 505, for according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, determining the corresponding virtual machines of the UE and the MAC Address of the virtual machine.
Encapsulation unit 506, is packaged for the MAC Address using the virtual machine to the UE messages sent.
First transmitting element 507, for being sent the message after encapsulation to target device by local virtual interchanger.
Said apparatus also includes：
3rd receiving unit 508, UE message is sent to for being received by local virtual interchanger.
Second determining unit 509, for the corresponding virtual machine context information of MAC Address according to the message, and the incidence relation of the virtual machine context information and UE contextual informations, determine the corresponding UE of MAC Address and the corresponding radio bearer of UE contextual informations of the virtual machine.
Decapsulation unit 510, for the message for being sent to UE of reception to be decapsulated.
Second transmitting element 511, sends the message after decapsulation to the UE of determination for the radio bearer by determination.
By embodiment one, by the function of integrated Hypervisor and virtual switch on access network equipment, the mobile network of flattening is realized.Between UE in network, between UE and outer data network, it can be communicated by the message of the MAC Address for the virtual machine for encapsulating UE simulations, it is not necessary to the anchor point concentrated, so as to optimize transmission path, improve efficiency of transmission.
Embodiment two
As shown in fig. 6, realizing device the embodiments of the invention provide a kind of mobile network's flattening, the device can be deployed on equipment of the core network, including：
Indicating member 601, for indicating that access network equipment generates UE contextual informations.
Transmitting element 602, for sending an instruction to the controller of cloud system, the instruction is used for the management program for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
Wherein, above-mentioned instruction instructs for application programming interface (Application Programming Interface, API), and API instructions include access network equipment mark and virtual machine mark；Access network equipment identifies the position that virtual machine is created for specifying, and virtual machine is identified for by the association of virtual machine context information and specific UE contextual informations.
Pass through embodiment two, by indicating that the Hypervisor on controller far call access network equipment creates the virtual machine of UE simulations, between UE, between UE and outer data network, communicated by the message of the MAC Address for the virtual machine for encapsulating UE simulations, the anchor point that need not be concentrated, so as to optimize transmission path, efficiency of transmission is improved.
Embodiment three
As shown in fig. 7, the embodiments of the invention provide a kind of access network equipment, including：
Processor 701, for setting up radio bearer with UE, generates UE contextual informations.
Transceiver 702, for receiving the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent.
Processor 701, is additionally operable to call local Hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with UE contextual informations.
Wherein, the contextual information of above-mentioned virtual machine at least includes the MAC Address of virtual machine.
Also, the contextual information of virtual machine can also include the maximum bandwidth value of virtual machine, the maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
Particularly, when UE is not first access wireless network, but it is switched to another access network equipment from an access network equipment in wireless network, the Mirror Info of the virtual machine context information on the access network equipment of source can be included in the Remote Procedure Call instruction that the controller that transceiver 702 so in target access network equipment is received is sent, the Mirror Info necessarily contains the MAC Address of the virtual machine on the access network equipment of source.So, when generating the contextual information of virtual machine, processor 701 can generate virtual machine context information according to the Mirror Info of the virtual machine context information on the access network equipment of source, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the access device of source.Because the virtual machine in target access network equipment is remained and the virtual machine identical MAC Address on the access network equipment of source, so the message that target access network equipment is forwarded to by source access network equipment can be received and be handled automatically, so as to ensure that the conversation continuity communicated between UE and outer data network and other UE.
It is in order to guarantee that the virtual machine context information and specific UE on access network equipment is context-sensitive, the virtual machine mark of equipment of the core network distribution is included in the Remote Procedure Call instruction that controller is sent.Therefore, when virtual machine context information and UE contextual informations are associated, processor 701 can be identified according to the virtual machine, and virtual machine context information is associated with UE contextual informations.
Transceiver 702 is additionally operable to, and the message that UE is sent is received by radio bearer.
Processor 701 is additionally operable to, according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, the corresponding virtual machines of the UE and the MAC Address of the virtual machine are determined, and the UE messages sent are packaged using the MAC Address of the virtual machine.
Transceiver 702 is additionally operable to, and is sent the message after encapsulation to target device by local virtual interchanger.
Transceiver 702 is additionally operable to, and the message for being sent to UE is received by local virtual interchanger.
Processor 701 is additionally operable to, according to the corresponding virtual machine context information of the MAC Address of the message, and the incidence relation of the virtual machine context information and UE contextual informations, the corresponding UE of MAC Address and the corresponding radio bearer of UE contextual informations of the virtual machine are determined, and the message for being sent to UE of reception is decapsulated.
Transceiver 702 is additionally operable to, and is sent the message after decapsulation to the UE of determination by the radio bearer of determination.
By embodiment three, a kind of access network equipment for the function of being integrated with Hypervisor and virtual switch is given, the mobile network of flattening is realized.Between UE in network, between UE and outer data network, it can be communicated by the message of the MAC Address for the virtual machine for encapsulating UE simulations, it is not necessary to the anchor point concentrated, so as to optimize transmission path, improve efficiency of transmission.
Example IV
As shown in figure 8, the embodiments of the invention provide a kind of equipment of the core network, including：
Processor 801, for indicating that access network equipment generates UE contextual informations.
Transceiver 802, for sending an instruction to the controller of cloud system, the instruction is used for the management program for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
Wherein, above-mentioned instruction instructs for application programming interface API, and API instructions include access network equipment mark and virtual machine mark；Access network equipment identifies the position that virtual machine is created for specifying, and virtual machine is identified for by the association of virtual machine context information and specific UE contextual informations.
By example IV, in addition to the existing capability such as the mobile management of equipment of the core network except being responsible for chain of command, it is additionally operable to indicate the virtual machine that the Hypervisor on controller far call access network equipment creates UE simulations.Between UE, between UE and outer data network, the message of the MAC Address of the virtual machine by encapsulating UE simulations is communicated, it is not necessary to the anchor point concentrated, so as to optimize transmission path, improves efficiency of transmission.
Embodiment five
As shown in figure 9, in the embodiment of the present invention, the access network equipment side of wireless communication system is locally being created UE virtual machine is intended in modeling, realizes that the flow of mobile network's flattening is as follows：
S901, access network equipment and UE set up radio bearer, generate UE contextual informations；
What the controller that S902, access network equipment receive cloud system was sent is used for the Remote Procedure Call instruction that instruction creates virtual machine；
S903, access network equipment call local Hypervisor, create virtual machine, and set up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with UE contextual informations.
Wherein, the virtual machine context information generated in S903 at least includes the MAC Address of virtual machine, also, virtual machine context information can also include the maximum bandwidth value of virtual machine, the maximum bandwidth value is used to constrain maximum bandwidth when virtual machine receives and sent message.
Specifically, operate in after the Remote Procedure Call instruction that the Hypervisor on access network equipment receives controller, it can't be calculated and memory source for the virtual machine distribution created, and only it is the Microsoft Loopback Adapter for setting up native virtual machine, and specify the MAC Address of Microsoft Loopback Adapter, set up the connection of Microsoft Loopback Adapter and local virtual interchanger, so as to which native virtual machine be connected with local virtual interchanger, and by configuring virtual switch and physical switches/router, the virtual machine is set up to the connection of other virtual machine/network services and outer data network.Wherein, the communication between the virtual machine on same access network equipment, is that can be achieved by the local virtual interchanger of the access network equipment；The communication between virtual machine on different access network equipments, and the communication between the virtual machine on the virtual machine and physical server on access network equipment, realized by the virtual switch on the virtual switch of access network equipment, physical switches and physical server；The communication between virtual machine and outer data network on access network equipment, is realized by the virtual switch on access network equipment, physical switches and IP gateway.
Particularly, when UE is not first access wireless network, but it is switched to another access network equipment from an access network equipment in wireless network, the Remote Procedure Call instruction that the controller that so target access network equipment is received is sent can include certain MAC Address for containing the virtual machine on the access network equipment of source in the Mirror Info of the virtual machine context information on the access network equipment of source, the Mirror Info.Hypervisor in target access network equipment generates the contextual information of native virtual machine according to the Mirror Info of the virtual machine context information on the source access network equipment, and according to the Mirror Info, the source access network of determination is set The MAC Address of standby upper virtual machine, it is the MAC Address of the virtual machine on the access device of source to specify the MAC Address of native virtual machine.Because the virtual machine in target access network equipment is remained and the virtual machine identical MAC Address on the access network equipment of source, so the message that target access network equipment is forwarded to by source access network equipment can be received and be handled automatically, so as to ensure that the conversation continuity communicated between UE and outer data network and other UE.
In order to ensure that access network equipment can be context-sensitive by local virtual machine context information and specific UE, include the virtual machine mark of equipment of the core network distribution in the Remote Procedure Call instruction that controller is sent, identified according to the virtual machine, local virtual machine context information just can be associated by access network equipment with the UE contextual informations specified.Each UE has one and its unique corresponding virtual machine on access network equipment, and each virtual machine has a unique virtual machine mark and MAC Address.
Because virtual machine context information is associated with UE contextual informations, follow-up access network equipment can receive the message that UE is sent by radio bearer, then according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, determine the corresponding virtual machines of the UE and the MAC Address of the virtual machine, and use the MAC Address of the virtual machine, the UE messages sent are packaged, then sent the message after encapsulation to target device by local virtual interchanger.It is corresponding, access network equipment is received by local virtual interchanger and is sent to after UE message, according to the corresponding virtual machine context information of the MAC Address of the message, and the incidence relation of the virtual machine context information and customer equipment context information, determine the corresponding user equipment of MAC Address and the corresponding radio bearer of customer equipment context information of the virtual machine, then the message for being sent to UE of reception is decapsulated, then sent the message after decapsulation to the user equipment of determination by the radio bearer of determination.
Pass through embodiment five, give a kind of new mobile network architecture, wireless communication system and cloud system are combined in the framework, base station is integrated with the function of Hypervisor and virtual switch, the network equipments such as physical switches/router, IP gateway do not need the tunnel encapsulation and control panel agreement of existing mobile network, and the mobile network of flattening just can be realized using the unitized network equipment.All networking connection managements are managed collectively by controller in network, between UE, between UE and outer data network, the message of the MAC Address of the virtual machine by encapsulating UE simulations is communicated, it is not necessary to the anchor point concentrated, so as to optimize transmission path, efficiency of transmission is improved.
Embodiment six
As shown in Figure 10, in the embodiment of the present invention, the equipment of the core network of wireless communication system notifies cloud management platform to create virtual machine, realizes that the flow of mobile network's flattening is as follows：
S1001, equipment of the core network indicate access network equipment generation UE contextual informations；
S1002, equipment of the core network send an instruction to the controller of cloud system, the instruction is used for the Hypervisor for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with UE contextual informations.
Wherein, above-mentioned instruction instructs for API, API instructions include access network equipment mark and virtual machine mark, and access network equipment identifies the position that virtual machine is created for specifying, and virtual machine is identified for by the association of virtual machine context information and specific UE contextual informations.
Pass through embodiment six, give a kind of new mobile network architecture, wireless communication system and cloud system are combined in the framework, in addition to the existing capabilitys such as mobile management of the equipment of the core network except being responsible for chain of command, it is additionally operable to indicate the virtual machine that the Hypervisor on controller far call access network equipment creates UE simulations.All networking connection managements are managed collectively by controller in network, between UE, between UE and outer data network, the message of the MAC Address of the virtual machine by encapsulating UE simulations is communicated, it is not necessary to the anchor point concentrated, so as to optimize transmission path, efficiency of transmission is improved.
Embodiment seven
Based on above-described embodiment five and embodiment six, the embodiment of the present invention accesses wireless network for UE, and the process for setting up connection with outer data network is introduced, and refering to shown in Figure 11, idiographic flow is as follows：
S1101, UE initiate network attachment flow；
S1102, eNB are received after the message, are selected MME and are forwarded the message to MME, wherein, it is the mark eNB UE ID that the UE is distributed that eNB, which is transmitted to and eNB is contained in MME message,；
After S1103, MME are authenticated to the UE, signing information is asked to HSS；
Wherein, the step of MME is authenticated to UE refers to prior art, and here is omitted.
S1104, HSS return to signing information to MME；
S1105, MME initiate initial context to eNB and set up request message, and the message is in addition to comprising UE attachment received message is sent to, also comprising other information, such as UE Security Context Information, UE Roaming limitation list, MME be the UE distribute mark：MME UE ID, and eNB is sent to MME eNB UE ID in S702；
When follow-up eNB and MME send message, by MME UE ID and eNB UE ID to uniquely determining the message for which UE.It should be noted that under new mobile network architecture, this message need not include bearer context information, the i.e. information such as tunnel ID of gateway distribution.
Radio bearer is set up between S1106, eNB and UE；
S1107, MME send the API instructions for creating virtual machine to controller, and Base Station Identification and virtual machine mark are contained in API instructions；
Wherein, Base Station Identification is used to specify the position for creating virtual machine, and virtual machine is identified the association of the virtual machine context information and specific UE contextual informations for subsequent base stations, and it is the MME UE ID that the UE is distributed that virtual machine mark, which can include MME in S705,.
S1108, controller send Remote Procedure Call and instructed to eNB, indicate that eNB is called and operate in local Hypervisor establishment virtual machines；
The Hypervisor on eNB is operated in receive after Remote Procedure Call instruction, localling create virtual machine, but it can't distribute and calculate and memory source for the virtual machine, and only it is the Microsoft Loopback Adapter for setting up virtual machine, specify the MAC Address of Microsoft Loopback Adapter, the connection set up between Microsoft Loopback Adapter and virtual switch；Wherein, the MAC Address of Microsoft Loopback Adapter can be distributed by Hypervisor, can also be specified by controller.Meanwhile, Hypervisor generation virtual machine context information, and the UE contextual informations generated in the virtual machine context information and S1105 are associated, it can be specifically associated by above-mentioned virtual machine mark.Wherein, the virtual machine context information of Hypervisor generations at least includes the MAC Address of virtual machine, also, virtual machine context information can also include the maximum bandwidth value of virtual machine, the maximum bandwidth value is used to constrain maximum bandwidth when virtual machine receives and sent message.
So far, UE establishes connection with outer data network.
S1109, virtual machine initiate IP address assigning process.
After distribution IP address, UE further can be communicated with other UE in net, network service (virtual machine on physical server) and outer data network using the IP address of distribution.
Wherein, Message processing process is as follows：ENB is received after the message that UE is sent by radio bearer, The message that the virtual machine of UE simulations is sent can be packaged into, network is sent to by virtual switch, specific encapsulation is exactly to be received by radio bearer after the message that UE is sent, according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, the corresponding virtual machines of the UE and the MAC Address of the virtual machine are determined, then using the MAC Address, message is packaged, re-send in network.ENB receives network and is sent to after UE message, need first to decapsulate, UE is sent to by radio bearer again, specific decapsulation is exactly to receive after the message that network is sent, according to the incidence relation of the corresponding virtual machine context information of the MAC Address of the message, and the virtual machine context information and UE contextual informations, the corresponding UE of MAC Address and the corresponding radio bearer of UE contextual informations of the virtual machine are determined, then the MAC Address of the message is decapsulated, is then forwarded to UE.
Pass through embodiment seven, MME and eNB are changed, and be combined wireless communication system and cloud system, realize a kind of new mobile network, solve in existing mobile network, the problem of path transmission that anchor point is brought for being required to concentrate when UE and other UE or outer data network interaction not enough optimizes, transmission time is long.
Embodiment eight
Based on above-described embodiment five and embodiment six, the embodiment of the present invention is for UE because the process that mobility is switched to another base station from a base station is introduced, and refering to shown in Figure 12, idiographic flow is as follows：
Before the handover, UE and outer data network establish connection, set up process reference implementation example three.Prepare subsequently through switching and hand-off execution process, UE and target eNB establishes wireless connection.
It should be noted that the embodiment of the present invention is in switching set-up procedure, source eNB and target eNB can exchange UE contextual informations, under new mobile network architecture, and this UE contextual information does not include bearer context information, the i.e. information such as tunnel ID of gateway distribution.
S1201, target eNB and UE are set up after wireless connection, indicate that MME carries out path switching；
Wherein, in switching set-up procedure, source eNB passes to the MME UE ID that MME distribution is contained in target eNB UE contextual informations, can be used for allowing MME to recognize which UE has initiated switching flow.
S1202, MME return path switching request acknowledgement message give target eNB；
S1203, MME send the API instructions for migrating virtual machine to controller, and target BS mark and virtual machine mark are contained in API instructions；
Wherein, target BS identifies the establishment position that virtual machine later is migrated for specifying, virtual machine is identified the association of the virtual machine context information and specific UE contextual informations for subsequent target base station, and virtual machine mark can pass to target eNB MME UE ID comprising source eNB in switching set-up procedure.
S1204, controller transmission Remote Procedure Call instruct and give target eNB, indicate that target eNB is called and operate in local Hypervisor establishment virtual machines；
Wherein, the Mirror Info for the virtual machine context information that UE is simulated on the eNB of source is further comprises in said distal ends procedure call instruction, the Mirror Info of the virtual machine context information has comprised at least the MAC Address for the virtual machine that UE is simulated on the eNB of source.
The Hypervisor on eNB is operated in receive after Remote Procedure Call instruction, localling create virtual machine, according to the Mirror Info of source eNB virtual machine context information, the local virtual machine context information of generation, wherein, the virtual machine context information at least includes the MAC Address of virtual machine, and, virtual machine context information can also include the maximum bandwidth value of virtual machine, and the maximum bandwidth value is used to constrain maximum bandwidth when virtual machine receives and sent message.Hypervisor specifies the MAC Address of native virtual machine for the MAC Address of the virtual machine on the eNB of source, the connection set up between the Microsoft Loopback Adapter of virtual machine and virtual switch.Meanwhile, the UE contextual informations for passing to target eNB of source eNB in the virtual machine context information of generation and switching set-up procedure are associated by Hypervisor, can be specifically associated by above-mentioned virtual machine mark.
S1205, controller indicate physics switch/router modification forwarding-table item；
Specifically, controller can pass through the programmable interface between physical switches/router, or distributed Routing Protocol realizes the renewal of the forwarding-table item of physical switches/router, so that the message for the virtual machine being sent on the eNB of source is forwarded into the virtual machine on target eNB.Because the virtual machine on target eNB is remained and the virtual machine identical MAC Address on the eNB of source, it is possible to automatic to receive and processing message, it is ensured that the conversation continuity communicated between UE and outer data network and other UE.
Target eNB receipt of subsequent and transmission are as follows for the Message processing process of the UE：Target eNB is received after the message that UE is sent by radio bearer, can be packaged into the report that the virtual machine of UE simulations is sent Text, network is sent to by virtual switch, specific encapsulation is exactly to be received by radio bearer after the message that UE is sent, according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, the corresponding virtual machines of the UE and the MAC Address of the virtual machine are determined, then using the MAC Address, packet outer layer is packaged, re-send in network.Target eNB receives network and is sent to after UE message, need after decapsulation, UE is sent to by radio bearer again, specific decapsulation is exactly to receive after the message that network is sent, according to the corresponding virtual machine context information of the MAC Address of the message, and the incidence relation of the virtual machine context information and UE contextual informations, determine the corresponding UE of MAC Address and the corresponding radio bearer of UE contextual informations of the virtual machine, then the MAC Address of the message is decapsulated, is then forwarded to UE.
S1206, target eNB notify source eNB release Radio Resources；
Source eNB is received after notice, discharges local UE contextual informations.
S1207, controller transmission Remote Procedure Call instruct and give source eNB, indicate that source eNB calls local Hypervisor to delete virtual machine.
Operate in the Hypervisor on the eNB of source to receive after Remote Procedure Call instruction, identified according to the virtual machine of the virtual machine to be deleted included in the instruction, delete corresponding native virtual machine, and discharge corresponding native virtual machine contextual information.
Pass through embodiment eight, after UE is moved, the MME of wireless communication system notifies the controller of cloud system to occur virtual machine (vm) migration event, cloud computing control system on new base station by creating virtual machine and readjusting network connection, it ensure that in the conversation continuity communicated between UE and outer data network and other UE, whole handoff procedure, it is not necessary to the anchor point concentrated, so as to optimize transmission path, efficiency of transmission is improved.
Embodiment nine
System is realized the embodiments of the invention provide a kind of mobile network's flattening, the system includes：
Equipment of the core network, for indicating that access network equipment generates UE contextual informations；An instruction is sent to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
Access network equipment, for setting up radio bearer with UE, generates UE contextual informations；Receive the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent；Local hypervisor is called, virtual machine is created, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, virtual machine context information is associated with UE contextual informations.
Wherein, above-mentioned equipment of the core network is sent to the instruction of controller and instructed for API, and API instructions include access network equipment mark and virtual machine mark.Access network equipment identifies the position that virtual machine is created for specifying, and virtual machine is identified for by the association of virtual machine context information and specific UE contextual informations.
The contextual information of the virtual machine of above-mentioned access network equipment generation at least includes the MAC Address of virtual machine.Also, the contextual information of virtual machine can also include the maximum bandwidth value of virtual machine, the maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
Particularly, when UE is not first access wireless network, but it is switched to another access network equipment from an access network equipment in wireless network, the Mirror Info of the virtual machine context information on the access network equipment of source can be included in the Remote Procedure Call instruction that the controller that so target access network equipment is received is sent, the Mirror Info necessarily contains the MAC Address of the virtual machine on the access network equipment of source.So, when generating the contextual information of virtual machine, target access network equipment can generate virtual machine context information according to the Mirror Info of the virtual machine context information on the access network equipment of source, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the access device of source.Because the virtual machine in target access network equipment is remained and the virtual machine identical MAC Address on the access network equipment of source, so the message that target access network equipment is forwarded to by source access network equipment can be received and be handled automatically, so as to ensure that the conversation continuity communicated between UE and outer data network and other UE.
It is in order to guarantee that the virtual machine context information and specific UE on access network equipment is context-sensitive, the virtual machine mark of equipment of the core network distribution is included in the Remote Procedure Call instruction that controller is sent.Therefore, when virtual machine context information and UE contextual informations are associated, access network equipment can be identified according to the virtual machine, and virtual machine context information is associated with UE contextual informations.
Access network equipment can be also used for, the message that UE is sent is received by radio bearer, and according to the corresponding UE contextual informations of the radio bearer, and the UE contextual informations and the incidence relation of virtual machine context information, the corresponding virtual machines of the UE and the MAC Address of the virtual machine are determined, and use should The MAC Address of virtual machine is packaged to the UE messages sent, finally, is sent the message after encapsulation to target device by local virtual interchanger.
Access network equipment can be also used for, the message for being sent to UE is received by local virtual interchanger, and according to the corresponding virtual machine context information of MAC Address of the message, and the incidence relation of the virtual machine context information and UE contextual informations, determine the corresponding UE of MAC Address and the corresponding radio bearer of UE contextual informations of the virtual machine, and decapsulate the message for being sent to UE of reception, the message after decapsulation is sent to the UE of determination finally by the radio bearer of determination.
Pass through embodiment nine, give a kind of new mobile network architecture, wireless communication system and cloud system are combined in the framework, access network equipment is integrated with the function of Hypervisor and virtual switch, in addition to the existing capabilitys such as mobile management of the equipment of the core network except being responsible for chain of command, it is additionally operable to indicate that networking connection managements all in the virtual machine that the Hypervisor on controller far call access network equipment creates UE simulations, network are managed collectively by controller.Between UE, between UE and outer data network, the message of the MAC Address of the virtual machine by encapsulating UE simulations is communicated, it is not necessary to the anchor point concentrated, so as to optimize transmission path, improves efficiency of transmission.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program product.Therefore, the form of the embodiment in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware.Moreover, the present invention can use the form for the computer program product implemented in one or more computer-usable storage mediums (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) for wherein including computer usable program code.
The present invention is flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program product to describe.It should be understood that can by the flow in each flow and/or square frame and flow chart and/or block diagram in computer program instructions implementation process figure and/or block diagram and/or square frame combination.These computer program instructions can be provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce a machine so that produce the device for being used for realizing the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames by the instruction of the computing device of computer or other programmable data processing devices.
These computer program instructions may be alternatively stored in the computer-readable memory that computer or other programmable data processing devices can be guided to work in a specific way, so that the instruction being stored in the computer-readable memory, which is produced, includes the manufacture of command device, the command device realizes the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, so that series of operation steps is performed on computer or other programmable devices to produce computer implemented processing, so that the instruction performed on computer or other programmable devices provides the step of being used to realize the function of specifying in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then other change and modification can be made to these embodiments.So, appended claims are intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the spirit and scope of various changes and modification without departing from the embodiment of the present invention to the embodiment of the present invention.So, if these modifications and variations of the embodiment of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (19)

  1. Device is realized in a kind of mobile network's flattening, it is characterised in that including：
    First processing units, for setting up radio bearer with user equipment, generate customer equipment context information；
    First receiving unit, for receiving the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent；
    Second processing unit, for calling local hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with customer equipment context information.
  2. Device as claimed in claim 1, it is characterised in that the contextual information of the virtual machine includes the media access control layer MAC Address of virtual machine.
  3. Device as claimed in claim 2, it is characterised in that the contextual information of the virtual machine also includes the maximum bandwidth value of virtual machine；The maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
  4. Device as claimed in claim 1, it is characterised in that the Remote Procedure Call instruction includes the Mirror Info of the virtual machine context information on the access network equipment of source；The Mirror Info includes the MAC Address of the virtual machine on the access network equipment of source；
    Generate virtual machine contextual information when, the second processing unit specifically for：
    According to the Mirror Info of the virtual machine context information on the source access network equipment, virtual machine context information is generated, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the source access device.
  5. Device as claimed in claim 1, it is characterised in that the Remote Procedure Call instruction includes the virtual machine mark of equipment of the core network distribution；
    When virtual machine context information and customer equipment context information are associated, the second processing unit specifically for：
    Identified according to the virtual machine, virtual machine context information and customer equipment context information are carried out Association.
  6. Device as described in claim 1 or 4, it is characterised in that also include：
    Second receiving unit, for receiving the message that user equipment is sent by radio bearer；
    First determining unit, for the incidence relation according to the corresponding customer equipment context information of the radio bearer, and the customer equipment context information and virtual machine context information, determines the corresponding virtual machine of the user equipment and the MAC Address of the virtual machine；
    Encapsulation unit, the message sent for the MAC Address using the virtual machine to user equipment is packaged；
    First transmitting element, for being sent the message after encapsulation to target device by local virtual interchanger.
  7. Device as described in claim 1 or 4, it is characterised in that also include：
    3rd receiving unit, the message of user equipment is sent to for being received by local virtual interchanger；
    Second determining unit, for the corresponding virtual machine context information of MAC Address according to the message, and the incidence relation of the virtual machine context information and customer equipment context information, determine the corresponding user equipment of MAC Address and the corresponding radio bearer of customer equipment context information of the virtual machine；
    Decapsulation unit, for the message for being sent to user equipment of reception to be decapsulated；
    Second transmitting element, sends the message after decapsulation to the user equipment of determination for the radio bearer by determination.
  8. Device is realized in a kind of mobile network's flattening, it is characterised in that including：
    Indicating member, for indicating that access network equipment generates customer equipment context information；
    Transmitting element, for sending an instruction to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
  9. Device as claimed in claim 8, it is characterised in that the instruction instructs for application programming interface API, the API instructions include access network equipment mark and virtual machine mark.
  10. A kind of implementation method of mobile network's flattening, it is characterised in that including：
    Access network equipment sets up radio bearer with user equipment, generates customer equipment context information；
    What the controller that access network equipment receives cloud system was sent is used for the Remote Procedure Call instruction that instruction creates virtual machine；
    Access network equipment calls local hypervisor, creates virtual machine, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, and virtual machine context information is associated with customer equipment context information.
  11. Method as claimed in claim 10, it is characterised in that the contextual information of the virtual machine includes the media access control layer MAC Address of virtual machine.
  12. Method as claimed in claim 11, it is characterised in that the contextual information of the virtual machine also includes the maximum bandwidth value of virtual machine；The maximum broadband is worth for constraining maximum bandwidth when virtual machine receives and sent message.
  13. Method as claimed in claim 10, it is characterised in that the Remote Procedure Call instruction includes the Mirror Info of the virtual machine context information on the access network equipment of source；The Mirror Info includes the MAC Address of the virtual machine on the access network equipment of source；
    The contextual information of virtual machine is generated, including：
    According to the Mirror Info of the virtual machine context information on the source access network equipment, virtual machine context information is generated, and the MAC Address of designated virtual machine is the MAC Address of the virtual machine on the source access device.
  14. Method as claimed in claim 10, it is characterised in that the Remote Procedure Call instruction includes the virtual machine mark of equipment of the core network distribution；
    Virtual machine context information is associated with customer equipment context information, including：
    Identified according to the virtual machine, virtual machine context information is associated with customer equipment context information.
  15. Method as described in claim 10 or 13, it is characterised in that also include：
    Access network equipment receives the message that user equipment is sent by radio bearer；
    Access network equipment determines the corresponding virtual machine of the user equipment and the MAC Address of the virtual machine according to the incidence relation of the corresponding customer equipment context information of the radio bearer, and the customer equipment context information and virtual machine context information；
    The message that access network equipment is sent using the MAC Address of the virtual machine to user equipment is packaged；
    Access network equipment is sent the message after encapsulation to target device by local virtual interchanger.
  16. Method as described in claim 10 or 13, it is characterised in that also include：
    Access network equipment receives the message for being sent to user equipment by local virtual interchanger；
    Access network equipment is according to the corresponding virtual machine context information of MAC Address of the message, and the incidence relation of the virtual machine context information and customer equipment context information, determine the corresponding user equipment of MAC Address and the corresponding radio bearer of customer equipment context information of the virtual machine；
    Access network equipment decapsulates the message for being sent to user equipment of reception；
    Access network equipment is sent the message after decapsulation to the user equipment of determination by the radio bearer of determination.
  17. A kind of implementation method of mobile network's flattening, it is characterised in that including：
    Equipment of the core network indicates access network equipment generation customer equipment context information；
    Equipment of the core network sends an instruction to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information.
  18. Method as claimed in claim 17, it is characterised in that the instruction instructs for application programming interface API, the API instructions include access network equipment mark and virtual machine mark.
  19. System is realized in a kind of mobile network's flattening, it is characterised in that including：
    Equipment of the core network, for indicating that access network equipment generates customer equipment context information；An instruction is sent to the controller of cloud system, the management program instructed for indicating controller far call access network equipment, virtual machine is locallyd create in access network equipment, virtual machine context information is generated, and virtual machine context information is associated with customer equipment context information；
    Access network equipment, for setting up radio bearer with user equipment, generates customer equipment context information；Receive the Remote Procedure Call instruction for being used to indicate to create virtual machine that the controller of cloud system is sent；Local hypervisor is called, virtual machine is created, and sets up the connection of virtual machine and local virtual interchanger, and generation virtual machine context information, virtual machine context information is associated with customer equipment context information.
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