CN107006068A

CN107006068A - A kind of wireless access network equipment, collocation method and configuration device

Info

Publication number: CN107006068A
Application number: CN201580067517.5A
Authority: CN
Inventors: 张晟; 桂亦慧; 饶超; 田春长
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2017-08-01
Anticipated expiration: 2035-03-27
Also published as: CN107006068B; WO2016154801A1

Abstract

The embodiment of the invention discloses a kind of wireless access network equipment, including：First virtual machine and the second virtual machine, wherein, the Virtual User equipment of user equipment is provided with first virtual machine, the virtual application server of application server is provided with second virtual machine, first virtual machine and the second virtual machine are provided with communication interface, the data transfer that the communication interface is used between the Virtual User equipment and the virtual application server.Accordingly, the embodiment of the present invention discloses the collocation method and device that a kind of wireless access network is set.Implement embodiments of the invention, it is possible to reduce access time delay and the flow consumption of user equipment and application server.

Description

Wireless access network equipment, configuration method and configuration device

Technical Field

The embodiment of the invention relates to the field of communication, in particular to wireless access network equipment, a configuration method and a configuration device.

Background

The Clone Cloud is a typical mobile Cloud computing solution, which is proposed by a scholarly of berkeley and finally realized by intel corporation, and the core idea of the Clone Cloud is to seamlessly and partially upload Execution blocks of an application program of an intelligent terminal to be executed to the Clone Cloud by using a virtual machine migration technology, so that the Execution of the application program on a mobile phone is automatically or semi-automatically expanded into a distributed Execution. The Cloud is a Cloud formed by integrating the Cloud of the smart phone as an infrastructure. The Clone Cloud of the smart phone is a complete mirror image of the smart phone running in the computer virtual machine, and compared with the smart phone, the Clone Cloud has richer and sufficient system resources such as hardware, software, networks, power supplies and the like, and can well solve the problem of resource limitation of the smart phone.

The principle of Clone Cloud is: a 'clone' environment of the user smart phone is constructed on a virtual machine of the server, and then the same application program as the terminal is operated in the environment. After the user starts the application software at the smart phone side, part of data required by running the special software is transmitted to a clone environment working by using the server. In a cloning environment, the same application software is started to replace the original application software for processing, so that the processing speed of the terminal side of the smart phone is improved.

The problems of the current mobile cloud computing scheme are as follows: user data is stored in UE, the data security is low, and the data synchronization is difficult; the core of mobile computing is UE, and the computing capability is greatly limited by UE hardware and cruising ability; the cloning environment is in the Internet, and the time delay for providing service is large; only an application program and an execution environment thereof exist in a cloning environment, and the universality is poor; the thread scheduling time delay is increased, and the execution complexity of a single program is increased; and unloading the calculation task and increasing the overhead of air interface transmission.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present invention is to provide a configuration method and apparatus for a radio access network device, and a radio access network device, which can solve the problems of long delay and large traffic in the process of accessing an application server by a user equipment in the prior art.

In order to solve the foregoing technical problem, a first aspect of an embodiment of the present invention provides a radio access network device, including: the system comprises a first virtual machine and a second virtual machine, wherein the first virtual machine is provided with virtual user equipment of user equipment, the second virtual machine is provided with a virtual application server of an application server, and the first virtual machine and the second virtual machine are provided with communication interfaces which are used for data transmission between the virtual user equipment and the virtual application server.

With reference to the first aspect, in a first possible implementation manner, the radio access network device is divided into a virtualization layer, a data layer and a control layer, where the first virtual machine and the second virtual machine are located in the virtualization layer, and the data layer is configured to store user data of the user equipment, device configuration information of the user equipment, application data of the application server and server configuration information of the application server; the control layer is used for carrying out corresponding operation on the virtual user equipment and the virtual application server.

With reference to the first aspect or the first possible implementation manner, in a second possible implementation manner, when the access network device monitors that the user equipment performs cell handover, obtaining virtual machine context information and application context information of the first virtual machine and the second virtual machine; and sending the virtual machine context information and the application program context information to a target wireless access network device through an X2 interface.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, if the radio access network device detects that a duration of the virtual ue that is not used continuously exceeds a preset duration, the virtual ue is controlled to enter a sleep state.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the radio access network device periodically detects whether an application program in the virtual application server is updated, and if so, notifies the virtual application server to download a latest application program.

With reference to any one of the first aspect to the fourth possible implementation manner, in a fifth possible implementation manner, the virtual user equipment and the virtual application server are in the same virtual machine, and the first virtual machine and the second virtual machine are the same virtual machine.

With reference to any one of the first aspect to the fifth possible implementation manner, in a sixth possible implementation manner, the user equipment includes mobile user equipment and desktop user equipment, and the application Server includes a Lite Server.

A second aspect of the present invention provides a method for configuring a radio access network device, including:

the method comprises the steps that the wireless access network equipment acquires user data and equipment configuration information of user equipment, generates a first virtual machine according to the equipment configuration information, and creates virtual user equipment corresponding to the user equipment in the first virtual machine according to the user data;

the wireless access network equipment acquires application data and server configuration information of an application server, generates a second virtual machine according to the server configuration information, and creates a virtual application server corresponding to the application server on the second virtual machine according to the application data;

and a communication interface is arranged between the virtual user equipment and the virtual application server, and the communication interface is used for data transmission between the virtual user equipment and the virtual application server.

With reference to the second aspect, in a first possible implementation manner, the obtaining, by the access network device, user data and device configuration information of a user device, generating a first virtual machine according to the device configuration information, and creating, in the first virtual machine, a virtual user device corresponding to the user device according to the user data includes:

the radio access network equipment acquires user data of the user equipment from core network equipment and acquires equipment configuration information of the user equipment from the user equipment;

and the wireless access network equipment acquires the application data and the server configuration information from the application server from core network equipment.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the radio access network device includes a data layer, a control layer, and a virtualization layer;

the data layer is used for storing the equipment configuration information, the user data, the application server configuration information and the application data;

the virtualization layer is used for bearing the virtual user equipment and the virtual application server;

and the wireless access network equipment controls corresponding operation on the virtual user equipment and the virtual application server through the control layer.

With reference to the second aspect or the first possible implementation manner, in a third possible implementation manner, when the radio access network device monitors that the user equipment is subjected to cell handover, obtaining virtual machine context information and application program context information of the first virtual machine and the second virtual machine;

and sending the virtual machine context information and the application program context information to a target wireless access network device through an X2 interface.

With reference to the second possible implementation manner of the second aspect, in a fourth possible implementation manner, the method further includes:

and if the duration of the continuous unused time of the virtual user equipment exceeds the preset duration, controlling the virtual user equipment to enter a dormant state.

With reference to the third possible implementation manner of the second aspect, in a fifth possible implementation manner, the radio access network device periodically detects whether an application program in the virtual application server is updated, and if so, notifies the virtual application server to download a latest application program.

With reference to any one of the second aspect to the fifth possible implementation manner, in a sixth possible implementation manner, the virtual user equipment and the virtual application server are in the same virtual machine, and the first virtual machine and the second virtual machine are the same virtual machine.

With reference to any one of the second aspect to the sixth possible implementation manner, in a seventh possible implementation manner, the user equipment includes mobile user equipment and desktop user equipment, and the application server is a lightweight application server.

A third aspect of the present invention provides a configuration apparatus for radio access network equipment, including:

the device comprises a first creating module, a second creating module and a third creating module, wherein the first creating module is used for acquiring user data and device configuration information of user equipment, generating a first virtual machine according to the device configuration information, and creating virtual user equipment corresponding to the user equipment in the first virtual machine according to the user data;

the second creating module is used for acquiring application data and server configuration information of an application server, generating a second virtual machine according to the server configuration information, and creating a virtual application server corresponding to the application server on the second virtual machine according to the application data;

With reference to the third aspect, in a first possible implementation manner, the first creating module is configured to obtain user data of the user equipment from a core network device, and obtain device configuration information of the user equipment from the user equipment;

and acquiring the application data and the server configuration information from the application server from the core network equipment.

With reference to the third aspect or the first possible implementation, in a second possible implementation, the method further includes:

the monitoring module is used for acquiring the virtual machine context information and the application program context information of the first virtual machine and the second virtual machine when monitoring that the user equipment is subjected to cell switching;

a sending module, configured to send the virtual machine context information and the application context information to a target radio access network device through an X2 interface.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner, the method further includes:

and the dormancy module is used for controlling the virtual user equipment to enter a dormancy state if the duration of the continuous unused time of the virtual user equipment exceeds the preset duration.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner, the method further includes:

and the updating module is used for periodically detecting whether the application program in the virtual application server is updated, and if so, informing the virtual application server to download the latest application program.

With reference to any one of the third aspect to the fourth possible implementation manner, the virtual user equipment and the virtual application server are in the same virtual machine, and the first virtual machine and the second virtual machine are the same virtual machine.

With reference to any one of the third aspect to the fifth possible implementation manner, the user equipment includes a mobile user equipment and a desktop user equipment, and the application Server includes a Lite Server.

The implementation of the invention has the following beneficial effects:

the method comprises the steps that a first virtual machine and a second virtual machine are configured in the wireless access network equipment, virtual user equipment corresponding to the user equipment is set in the first virtual machine, and a virtual application server of an application server is configured in the second virtual machine, so that aggregation of the UE and the application server at the wireless access network equipment is realized, and communication delay of the UE and the application server and flow of a core network are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a diagram of a network architecture of a wireless communication system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a radio access network device according to an embodiment of the present invention;

fig. 3 is another schematic structural diagram of a radio access network device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a radio access network device according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a configuration method of a radio access network device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a configuration apparatus of a radio access network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention can be applied to 2G, 2.5G, 3G or LTE (Long Term Evolution, LTE for short) mobile communication networks, and the main application scene comprises the condition that User Equipment (UE) is communicated with an application server in the Internet, such as the condition that the UE establishes or breaks various communication connections of a transmission layer and the above layers with the application server, and the UE uploads data or downloads data. The Radio Access Network device provided by the present invention may be a conventional base station, an evolved node b, or a cooperative Radio Access Network C-RAN (cooperative Radio Access Network, C-RAN for short) device, etc., and may also be other Access Network devices, which is not limited in the present invention. The technical framework of the invention is Mobile Virtualization (MV), which utilizes MV technology to generate Virtual User Equipment VUE and Virtual application server in the Virtualization environment of radio access network Equipment, and the VUE (Virtual User Equipment, VUE for short) can be installed with application program for processing all calculation tasks of users; an application program, such as a Lite Server, may be installed in the virtual application Server to provide a part of functions of the application Server in the internet.

Referring to fig. 1, a schematic structural diagram of a communication system provided in an embodiment of the present invention is shown, where the communication system includes a UE, a radio access network device, a core network and an application server, where a user equipment includes a smart phone, a tablet computer, a notebook computer, and the like, the radio access network device in fig. 1 takes an eNodeB as an example, and the core network includes: the MME (Mobility Management Entity, MME for short), SGW (Serving GateWay, SGW for short), PGW (Public Data Network GateWay, PGW for short), and IDC (Internet Data Center ), where the MME and SGW are used to process user identity authentication and service bearer establishment, the PGW is a GateWay where a core Network device is connected to the Internet, and the IDC Data Center is used to store user Data of a user device. The wireless access network equipment generates a first virtual machine according to the equipment configuration information of the UE, and creates a VUE in the first virtual machine according to the user data of the UE; the wireless access network equipment generates a second virtual machine according to the server configuration information of the application server, and creates a virtual application server in the second virtual machine, so that the UE and the application server are aggregated at the wireless access network equipment, and the communication delay of the UE and the application server is reduced.

Referring to fig. 2, which is a schematic structural diagram of a radio access network device according to an embodiment of the present invention, in the embodiment of the present invention, the radio access network device communicates with a UE downward through an eUu interface, communicates with a core network upward through an eS1 interface, and communicates between the radio access network devices through an X2 interface. The concept of MVU (mobile Virtualization Unit, MVU) is the same as that of the radio access network device, and represents a virtualized radio access network device.

The radio access network equipment is logically divided into three layers: virtualization layer, control layer, data layer. Each layer has different logic functions to handle corresponding functional requirements. The lowermost data layer provides underlying storage capabilities and various internal and external operations on the stored data; the middle control layer provides support for the normal operation of the whole wireless access network equipment and has core service logic; the top virtualization layer provides a runtime environment for applications, including virtualization of user devices and virtualization of application servers.

Virtualization layer of radio access network device: the virtualization layer provides the virtual user device and the virtual application server with respective required virtualization environments. Compared with the existing virtualization technology, the virtualization method has the advantages that the virtualization of the application server and the virtualization of the user equipment are realized, and the communication flow and the time delay overhead between the application server and the user equipment are reduced.

In the virtualization of the user equipment, user equipment with different architectures, such as ARM-based mobile user equipment and x 86-based desktop user equipment, is supported, and all users of the same user are reached by using a cross-platform file system, so that unified multi-screen and data synchronization are realized.

The virtualization layer further includes an infrastructure layer, where the infrastructure layer uses a standard server of an Intel x86 architecture as an infrastructure to provide hardware capability support to the virtualization layer, including computing capability of a CPU and a GPU (graphics Processing Unit, GPU for short), storage capability of a memory and a hard disk, network capability of a network card, and the like. By utilizing the existing mature virtualization technology, the hardware capability of the infrastructure layer can be abstracted and packaged, and a unified virtualization environment is presented to the outside. A virtualization layer. The virtualization layer comprises a virtual machine created according to hardware capacity and a virtualization object generated in the virtual machine: the virtual user equipment and the virtual application server can be located in the same virtual machine or different virtual machines, and application programs can be installed in both the virtual user equipment and the virtual application server.

Illustratively, the virtualization layer of the radio access network device is described by taking a KVM (Kernel-based Virtual Machine) Virtual Machine as an example. The method comprises the following steps of realizing virtualization of each hardware of the application server, wherein the hardware of the application server comprises: CPU, memory, hard disk, network.

A CPU: in the KVM implementation, one virtual machine is a process, and one virtualized CPU is a thread, so the number of virtual CPUs allocated in the virtual machine may be greater than the number of CPUs actually existing physically, i.e. the virtual machine may be overloaded for use, and generally, one physical kernel may virtualize 2 to 4 virtual CPUs.

Memory: in KVM implementations, the memory may also be overloaded. Swap space should be available when memory is implemented, but performance is significantly degraded. The overload of the memory is not as much as the overload of the CPU because the virtual machine is forced to be shut down due to insufficient memory when the memory is overloaded.

Hard disk: the hard disk of the KVM is incremental and is a simple division method, but the hard disk capacity of the system is reserved.

Network: it is also possible to simply divide, mainly depending on the bandwidth.

Taking KVM virtualization technology as an example, the support capability of the base station virtualization cloud platform is estimated.

Given that a physical server with hardware resources of 16-core CPU, 94GB memory, and 1.8TB hard disk can support 64 VM virtual machines of 2-core CPU, 25 VM machines of 4GB memory, and 32 VM machines of 50GB hard disk according to the hardware resources, at this time, the memory becomes a bottleneck, so it is considered approximately that when the physical server is not overloaded, it is more appropriate to support 25 x86 architecture VMs, that is: a physical server with 1 16 cores of CPU, 94GB memory and 1.8TB hard disk can virtualize 25 virtual machines with 2 cores, 4GB memory and 50GB hard disk.

Consider the case of a mobile user device, for example, iPhone 5s, whose hardware configuration is 2 cores of CPU at 1331MHz, 1GB of RAM, and 16GB of ROM. The physical server of 16-core CPU, 94GB memory and 1.8TB hard disk, when overload is not considered, the iPhone 5s supporting 32 ARM architectures is more suitable, namely: the physical server of 1, 16-core CPU, 94GB memory and 1.8TB hard disk can virtualize 32 virtual machines of 2 cores, 1GB RAM and 16GB ROM

Mobility management of radio access network devices: when the wireless access network equipment monitors that the UE is switched to the cell, starting a migration process of the virtual machine: since the virtual user equipment is generated by the uniform VM template, huge and complete VM data does not need to be transmitted between two pieces of radio access network equipment in the process of mobility management, and only VM context information and user data need to be transmitted.

For example, the radio access network device a discovers that the UE moves and starts the migration process of the virtual machine: the wireless access network equipment A arranges the context information and the user data of the virtual machine, sends the context information and the user data to target wireless access network equipment (wireless access network equipment B) through an X2 interface, the wireless access network equipment B calls a virtual machine template, the state of the virtual user equipment is recovered by using the received VM context information and the user data, and meanwhile, the wireless access network equipment B synchronizes the application program and the application data of the virtual user equipment through an X2 interface. And when the mobility management of the wireless access network equipment is finished, the wireless access network equipment A is dormant, and if the wireless access network equipment A is not activated within the preset time, the virtual user equipment in the wireless access network equipment A is destroyed and the occupied resources of the virtual user equipment are released. If the radio access network equipment A is activated within the preset time, the radio access network equipment A is awakened, and the application data and the user data are directly synchronized to start normal work.

It should be noted that, when the UE is powered off or the network connection is disconnected for a preset duration, the virtual UE corresponding to the UE enters a dormant state; when the UE is started or network connection is recovered, the virtual user equipment corresponding to the UE carries out corresponding synchronization or mobility management.

It should be noted that, the unified physical server provides the hardware capability of the infrastructure upwards, and the unified virtualization layer provides the virtual machine operating environment upwards; the virtual machines in the virtualization layer can be divided into two types: the virtual machines A and B are used for running the virtual machine of the UE, the virtual machines of the UE are respectively a virtual machine of mobile user equipment and a virtual machine of desktop user equipment, and application programs of different platforms run in the virtual user equipment of the two virtual machines respectively; and B, operating a virtual application Server, wherein an application program in the virtual application Server can be a Lite Server.

A control layer of the radio access network device, the control layer comprising: the system comprises a VM management module, a mobile management module, a core logic module, an application management logic module and a user information module. The control layer, in addition to the five functional modules described above, also includes three interfaces drawn in the virtualization layer: eUu interface, VS interface, and eS1 interface. The business process participated by the control layer can be mainly summarized into three stages, which are respectively: a setup phase, an installation/update phase and a use phase.

Description of the various interfaces in a radio access network device, the radio access network device comprises 4 interfaces: an existing X2 interface, a modified eS1 interface extended on the basis of an interface in an original LTE communication system, a eUu interface, and a newly defined VS interface.

1. eUu interface: the eUu interface is an enhanced version of the LTE air interface and is the only interface for communication between the radio access network device and the UE, the eUu interface adds an IP layer parsing function based on the protocol stack of the Uu interface of the LTE communication system, so that the radio access network device can distinguish the source device and the destination device of each IP packet, that is, which UE sends to (receives from) which virtual user equipment or the rest of the interfaces, where the rest of the interfaces are interfaces other than the eUu interface.

In addition, an address mapping table is added, and when the wireless access network equipment receives IP data packets sent by the UE, the virtual user equipment or other interfaces, routing forwarding is carried out according to the address mapping table.

Target	IP address	RRC connection
Target	IP address	RRC connection	UE1	IP1	RRC1
UE2	IP2	RRC2	UE1	IP1	RRC1
UE2	IP2	RRC2	UE3	IP3	RRC3
……	……	……	UE3	IP3	RRC3
……	……	……	UEn	IPn	RRCn

TABLE 1

Target	IP address	VM
Target	IP address	VM	VUE1	IP1	VM1
VUE2	IP2	VM2	VUE1	IP1	VM1
VUE2	IP2	VM2	VUE3	IP3	VM3
……	……	……	VUE3	IP3	VM3
……	……	……	VUEn	IPn	VMn
eS1 interface	IPj		VUEn	IPn	VMn
eS1 interface	IPj		VS interface	IPk

TABLE 2

2. The eS1 interface: the eS1 interface is an enhancement of the S1 interface in the LTE communication system, and the eS1 interface is the only interface for communication between the radio access network device and the core network. The eS1 interface is a protocol stack added with IP layer parsing function on the basis of the S1 interface of the LTE communication system, so that the radio access network device can identify the source device and the destination device of the IP packets by IP addresses, i.e. can distinguish which MME sends (or receives) each IP packet to (or from) which Lite Server or other interfaces, where the other interfaces are interfaces other than the eS1 interface.

In addition, an address mapping table is added to the eS1 interface, and when the eS1 interface receives IP data packets sent by the UE, the VUE or other interfaces, routing forwarding is carried out according to the address mapping table.

Target	Internal IP address
Target	Internal IP address	Lite Server1	IP a1
Lite Server2	IP a2	Lite Server1	IP a1
Lite Server2	IP a2	……	……
Lite Servern	IP an	……	……
Lite Servern	IP an	eUu interface	IP ak

TABLE 3

Target	IP address
Target	IP address	MME	IP c1
SGW	IP c2	MME	IP c1
SGW	IP c2	PGW	IP c3
……	……	PGW	IP c3

TABLE 4

Target	Internal IP address	External IP address
Target	Internal IP address	External IP address	UE1	IP b1	IP b1’
UE2	IP b2	IP b2’	UE1	IP b1	IP b1’
UE2	IP b2	IP b2’	……	……	……
UE3	IP bn	IP bn’	……	……	……

TABLE 5

3. VS interface: the VS interface is an interface newly created by the invention and is positioned at a pivot between the virtual user equipment and the virtual application server, a forwarding table is maintained in the VS interface, and the target equipment of the IP data packet is determined according to the IP address carried in the IP data packet. If the current user uses services such as VoLTE (Voice over LTE, LTE Voice service, VoLTE for short) that do not need participation of the virtualization layer, the VS interface may enter a "transparent transmission" mode to enable the IP data packet to be directly transmitted between the eUu interface and the eS1 interface. In addition, the VS interface is also the only entity in the virtualization layer that can communicate with the data layer, and provides the full capabilities of the eUu interface, the eS1 interface, and the VM to read and write user databases, application databases, and system databases. The TCP connection between the VUE and the Lite Server in the transport layer is carried over the network layer, and an Application Programming Interface (API for short) for the database is provided in the Application layer by using a higher layer protocol.

A module contained in a radio access network device.

The radio access network equipment comprises 6 functional modules: 5 functional modules in the control layer and 1 functional module in the data layer, include in the control layer: the system comprises a VM management module, a core logic module, an application management module, a user information module and a mobile management module, wherein a data layer comprises a data processing module. Each functional module comprises a data structure and a sub-module, and the data structure is not necessary for all the functional modules.

1. The core logic module comprises: an initialization submodule, a business logic submodule, a thread scheduling submodule and an interface maintenance submodule, wherein,

and the initialization submodule is used for resetting the working state of the communication system.

And the business logic submodule is used for controlling the work of other functional modules according to different business requirements and maintaining the state transition of the internal message queue and the automaton.

And the thread scheduling submodule is used for maintaining a system thread pool and creating a corresponding thread for the service request of each user.

And the interface maintenance submodule is used for initializing and configuring each interface.

2. The VM (Virtual machine, VM for short) management module comprises an active Virtual machine list, a system available resource list, an initialization submodule, a VM creation submodule, a VUE creation submodule, an application maintenance submodule, a dormancy control submodule, a destruction submodule and a state monitoring submodule, wherein,

list of active virtual machines: the module maintains an active VM list, and other sub-modules perform addition, deletion, modification and check for other functional modules to inquire;

list of available resources for the system: storing the maximum available resources which can be provided by the bottom hardware facilities at present, and providing a basis for the creation and monitoring of the VM;

an initialization module: is responsible for initializing the internal data structure of the module;

a VM creation module: according to the available resource condition, a VM meeting the required configuration is created;

the VUE creation module: according to the available resource condition, creating a VUE meeting the required configuration;

an application maintenance module: according to the requirement, directly installing/uninstalling a certain APP in a certain VUE in the VM; directly deploying a certain Lite Server into the VM;

the dormancy control module: the VM which is idle for a long time is dormant, and context environments such as a running state and the like are saved, so that the work can be restored in time;

a destroying module: destroying the VM or the VUE according to the user requirement;

a state monitoring module: monitoring the working states of the VM and the VUE in real time, and alarming and correspondingly processing when abnormal; monitoring available resources of the system in real time, and alarming and processing when the resources are too few;

3. the application management module comprises: an APP Server list, a Lite Server list, an initialization sub-module, an APP registration sub-module, a Lite Server creation sub-module, an APP update sub-module, and a state monitoring sub-module, wherein,

and the APP Server list is used for storing the Server IP address of the ASP in the Internet and information such as whether each Server supports Lite Server and the like, and is used for the module to periodically inquire.

And the Lite Server list is used for maintaining the Lite Server which is registered in the system.

And the initialization submodule is used for initializing the internal data structure of the module.

And the APP registration submodule is used for maintaining information lists such as APP server addresses used by users in the system, and comprises registration, validity check and the like.

And the Lite Server creating submodule is used for listening to the scheduling of the upper application, acquiring the Lite Server from the core network IDC and deploying the Lite Server in the local.

And the APP updating submodule is used for polling the known APP server periodically to obtain the installation package of the latest version of the APP and the updating information.

And the state monitoring submodule is used for monitoring the working state of the Lite Server in real time and carrying out alarm and corresponding processing when the working state is abnormal.

4. The user management module comprises: a system registered user list, an initialization sub-module, a user registration login sub-module, a user authentication sub-module, a user information maintenance sub-module, a personalized analysis sub-module and a state monitoring sub-module, wherein,

the system registers the user list, is used for maintaining the user list of receiving service in the system.

And the user registration login submodule is used for judging whether the current login state of the user is a new registered user.

And the user authentication submodule is used for acquiring the package service condition of the user, acquiring various service authorities of the user and managing the service authorities.

And the user information maintenance sub-module is used for acquiring the personal information of the user in the telecommunication network and meeting the query requirements of other modules.

And the personalized analysis submodule is used for analyzing according to the geographic position, the behavior habit and the like of the user and providing support for the upper-layer application.

And the state monitoring submodule is used for monitoring the state of the registered user in real time and carrying out alarm and corresponding processing when the registered user is abnormal.

5. The mobility management module includes: mobile detection submodule, context extraction submodule, context transmission submodule and context processing submodule

And the mobile detection submodule is used for monitoring the movement of the UE in real time and judging whether the mobility management is required.

A context extraction submodule: the VM which is idle for a long time is dormant, context environments such as a running state and the like are saved, and the work can be restored in time.

A context transmission submodule: context is transferred to another MVU using the data management module and X2 interface.

A context processing submodule: context from another MVU is processed using a data management module and X2 interface.

6. The data processing module comprises: the device comprises an initialization submodule, a data synchronization submodule, a database external interface, a transmission submodule, a data block operation submodule, a data backup submodule and a state monitoring submodule.

An initialization module: the system is responsible for initializing the database maintained by the module;

a data synchronization module: maintaining data synchronization with the MME or other MVU according to the scheduling of the service logic module;

external interface of database: providing an interface packaged with various data calling functions according to the requirements of upper-layer application;

a transmission submodule: the mobile management module and the data synchronization module are matched to be responsible for MVU transmission;

a database operation module: the module is responsible for carrying out operations such as adding, deleting, modifying, searching and the like on the database;

the data backup submodule comprises: the user data, the application data and the system data are backed up at regular time, and the safety and the availability of the system data are guaranteed when a disaster happens;

a state monitoring module: monitoring the state of each database in real time, and alarming and correspondingly processing when abnormal;

7. and (3) interactive flow of each module of the wireless access network equipment.

【1】 The radio access network equipment comprises 5 typical processes of initialization, access/registration/login, VUE creation, APP installation/update and mobile management, and logical interaction relations among modules of the radio access network equipment are respectively described below.

An initialization process: at MVU, the modules are initialized individually.

The core logic module initializes the mapping table in each interface by using the interface maintenance module, establishes a thread pool and opens a service message queue;

the application management module utilizes the APP registration module to complete the registration of the application Server in MVU, and the Lite Server creation module completes the creation of a corresponding application program instance;

a VM creating module in the VM management module creates a corresponding virtual machine instance;

the mobility management module begins to detect movement of the UE.

【2】 Access/registration/login process: firstly, UE initiates an action of accessing a virtual machine;

the core logic module distributes a processing thread for the process by using the thread scheduling module, and starts the service logic module to process the service flow;

after the user authentication module at the eNB completes authentication, the system confirms that the UE has the qualification of being served;

the user registration/login module informs a data synchronization module in the data processing module according to the starting service, and requests the data center in the core network for synchronizing the user information;

the eNB synchronizes with a data center of a core network through an eS1 interface to acquire latest user data (personal information, personalized settings, application configuration and the like);

under the coordination of the external interface sub-module of the database, the data are transmitted from the eS1 interface to the data layer;

under the control of the database operation module, the user data is written MVU into the local temporary database to complete login and synchronization;

【3】 The create VUE procedure: when the user successfully logs in MVU after authentication, the core logic module starts a VUE creation process, and starts a thread and a new service logic flow;

the user management module informs the VM management module to generate a corresponding VUE by extracting relevant data of a user;

a VUE creating module in the VM management module creates a new UE virtual machine of a user;

the data synchronization module is communicated with a data center in a core network to obtain user personalized configuration and virtual machine data;

【4】 And an installation/update process: the core logic module starts a daemon thread and calls the service logic module to execute the installation/update task of the APP;

after the Lite Server is created, the application management module periodically informs the corresponding sub-module to detect the latest version of the APP according to the APP Server registration condition stored in the application management module;

after the latest version is acquired, the application maintenance module is utilized to quiesce installation in all VUEs.

【5】 The mobile management process comprises the following steps: the core logic module starts a daemon thread to be responsible for mobility management;

when the mobility management module detects that the UE moves across MVU, extracting the virtual machine context and the application program context of the user VUE;

the transfer module across MVU transfers the context to the new MVU using the X2 interface;

when the VUE of the old MVU is not used within a certain time, the dormancy control module automatically sleeps the VUE and finally destroys the VUE.

After the new MVU receives the context, the working state of the user VUE is quickly restored by using the virtual machine template and the cached APP installation package.

The embodiment of the invention brings the following technical effects:

(1) flow saving: originally, each user needs to acquire data from a Server in the internet through a core network, after the method and the device are applied, the VUE queries a Lite Server in MVU, and the Lite Server is communicated with the Server in a unified mode, so that the flow pressure of the core network is greatly reduced.

For example, for every 100 users with an average APP installation number of 50: redundant "un-personalized" traffic in the core network is reduced by more than 80%.

For example, for each APP, only 1 query request is needed in the maaoio model for originally 100 query requests identical to different users, and the benefit is still very obvious in consideration of timeliness and extra overhead.

The port occupancy of the packet gateway is reduced by 99%.

For example, APP of 100 users occupies 5000 packet gateway ports, and only 50 ports are needed in maaoio model.

The occupied air interface transmission bandwidth of a single user is saved by 50-75%.

Description of the drawings: the maaoio service model adopts the remote desktop technology, so that the air interface flow is greatly saved, and the transmission bandwidth is saved by over 50% in consideration of the situation of multi-application superposition.

(2) The time delay is small: the single RTT includes the time from the UE to MVU through the air interface, to the core network, to the internet through the gateway, to the server through the router, and back to the UE, which goes through many processes and has a large total delay. After the invention is applied, the VUE and the Lite Server are both in MVU, and the communication time delay is greatly reduced. The data transmission round trip time RTT is reduced by an order of magnitude.

It should be noted that: the primary query of the original user needs to be sent from the UE to the base station through the air interface, through the core network, through the Internet, through the server process, and then returned to the UE. In the maaoio model, a request of a client is directly responded by a process in the same computing entity, the single RTT is reduced by 400ms, and the total delay is reduced from a sub-second level to a millisecond level.

The server response flow changes from serial to parallel.

Description of the drawings: originally, one query of a user needs a plurality of processes in a figure in series, and the total time delay is linearly added. In the maaoio model, Lite Server communicates with servers in the Internet periodically, and this part of the delay is avoided from being involved in the processing of each request.

The computational tasks of mobile virtualization are more responsive than traditional virtualization.

Description of the drawings: in the existing cloud desktop technology, the virtualization environment exists in a server of the Internet, and the response speed to the user input is far lower than that of the mobile virtualization at MVU.

(3) And (3) signaling is saved: originally, the heartbeat packet is sent periodically from the UE, occupies too much air interface resources, and after the invention is applied, the heartbeat packet is sent by MVU. The signaling storm problem is thoroughly solved.

It should be noted that: all existing solutions, except moving the UE's computational tasks to MVU, do not completely address the signaling storm problem. The MaaIO model can keep the requirement that the APP periodically sends the heartbeat packet, simultaneously avoid the problem of occupation of a large amount of signaling caused by the heartbeat packet, and balance user experience and network performance.

(4) The capacity expansion requirement is reduced, and the cost is reduced. Because the occupation of the air interface control channel is reduced, the capacity expansion of the equipment by the operator with high cost is not needed.

Compared with the prior art, the embodiment of the invention has the advantages of hardware improvement and software improvement. A new wireless access network device is invented on hardware, and the wireless access network device can be an eNodeB. The improvement relates to two aspects: on one hand, the position is close to the user at the edge of the network; on the other hand, hardware devices in which a general x86 server is added to an eNodeB are integrated with hardware devices existing in the eNodeB by software. A novel base station software architecture is provided in software, and virtualization of the UE and virtualization of the application server are realized, and the two are aggregated at the wireless access network equipment.

Referring to fig. 3, a further structural diagram of a radio access network device according to an embodiment of the present invention is provided, where differences between the radio access network device in the implementation of the present invention and the first embodiment mainly lie in the design of a virtualization layer. In this embodiment, the virtual machine of the VUE in the virtualization layer and the virtual machine of the virtual application server are unified virtual machines, and the VS interface is sunk between the virtualization layer and the control layer.

A virtualization layer in the radio access network device provides a unified virtualization environment for the VUE and the virtual application server. Compared with the existing virtualization technology, the virtualization method has the advantages that the virtualization of the application server and the virtualization of the UE are realized, and the communication flow and the time overhead between the application server and the UE are reduced.

It should be noted that the unified physical server provides the infrastructure hardware capability upwards; the unified virtualization layer provides the running environment of the virtual machine upwards; the unified virtualization layer does not distinguish between two types of virtual machines, but defines virtualization of the UE and virtualization of the application server as a "container" collectively. The application layer locates the container by a virtual IP address to distinguish a specific virtual machine type.

Software manufacturers provide a novel access network software architecture, and realize that through a unified virtualization environment, virtual machines in the virtualization environment are externally represented as containers of the same type, and the interior of each container has virtualization for UE and Server according to actual requirements. Other improvements are similar to the first embodiment.

The invention emphasizes two points, namely, the virtualization of the UE and the aggregation of the virtualization of the UE and the virtualization of the server in the network element of the core network, and the beneficial effects can be obtained by the two points. According to the idea, it is within the scope of patent protection to implement both the virtualization of the UE and the virtualization of the Server in the base station or the network element with similar functions.

The evasive scheme is that MVU in the invention is split into 2 different network elements, and the virtualization of the UE and the virtualization of the Server are respectively carried out.

In addition, the present invention is directed to a new device in an access network in a mobile communication network of an operator, wherein if a UE is an intermediary device and then other UEs in the periphery access the intermediary device, although the intermediary device does not participate in virtualization, if other UEs implement virtualization in the above device, the new device should be considered as consistent with the situation described in the present invention.

It will be appreciated that the devices in the access network apparatus of the above invention are subject to a change of location, i.e. move away from the network edge, either up (core network side) or down (UE side). In this case, the beneficial effects not exactly the same as those of the present invention may be obtained, but the idea of the present invention is used for reference as long as the virtualization of the UE and the virtualization of the Server are aggregated in the telecommunication network. Even if the devices or the network elements are not in the same device or the same network element, the devices or the network elements are in the same cluster or utilize a medium such as a short-distance optical fiber, and the like, and the devices or the network elements are in the short distance from the perspective of the telecommunication network technology, the aggregation can be considered to be achieved.

Finally, the invention can be used in wired networks as well as in mobile communication networks. Except for the difference in the interfaces for communication between network elements, the inside of the device can be implemented according to the present invention.

Referring to fig. 4, another schematic structural diagram of a Radio access network device is provided for the present invention, in the embodiment of the present invention, the Radio access network device includes a BBU (baseband processing Unit, BBU for short) and an RRU (Radio Remote Unit, RRU for short), the RRU and the BBU communicate with each other through an edrec interface, the BBU generates a first virtual machine according to device configuration information of the UE, and creates a VUE in the first virtual machine according to user data of the UE; the BBU generates a second virtual machine according to the server configuration information of the application server, and creates a virtual application server in the second virtual machine, so that aggregation of the UE and the application server at the wireless access network equipment is realized, and communication delay of the UE and the application server is reduced.

The BBU includes 4 interfaces including an existing X2 interface, a modified eREC interface extended over an interface in the original LTE system, a eUu interface, and a newly defined VS interface.

The edrec interface is an enhanced version of a Radio Equipment Control module in the RRB, and is the only interface for communications between MVU and the UE. The protocol stack of the RRB is based on the addition of the parsing function of the IP layer, so that MVU can distinguish which UE sends (or receives) each IP packet to (or from) which VUE or other interfaces.

In addition, an address mapping table is added, and when data packets sent by the UE, the VUE or other interfaces are received, routing forwarding is carried out according to the mapping table.

Target	IP address
Target	IP address	UE1	IP1
UE2	IP2	UE1	IP1
UE2	IP2	UE3	IP3
……	……	UE3	IP3
……	……	UEn	IPn

TABLE 6

TABLE 7

The second technical effect of the embodiment of the invention is as follows: compared with the first embodiment, the radio access network equipment is provided in a C-RAN system, and is characterized in that a radio frequency module BBU is connected with an RRU through an optical fiber, and the distance between the RRU and the RRU is from hundreds of meters to dozens of kilometers. The distance between the BBU and the RRU is far, and the time delay of the link is larger than that of the first embodiment.

Referring to fig. 5, a schematic flowchart of a configuration method of a radio access network device according to an embodiment of the present invention is shown, where in the embodiment of the present invention, the method includes:

s101, a wireless access network device acquires user data and device configuration information of a user device, generates a first virtual machine according to the device configuration information, and creates a virtual user device corresponding to the user device in the first virtual machine according to the user data.

Specifically, the radio access network device may obtain user data and device configuration information of the user equipment from the core network, where the device configuration information represents hardware configuration information of hardware capability of the user equipment and software configuration information representing software attributes on the user equipment, for example, the hardware configuration information includes the number of CPU cores, CPU frequency, memory size, and the like, and the software configuration information includes an installed application program, an operating system type, and the like; the user data represents intermediate data generated by the user running on the user device, such as subscription data, context information, etc. The wireless access network equipment applies hardware resources from an infrastructure layer to create a first virtual machine according to the equipment configuration information, and creates virtual user equipment corresponding to the user equipment in the first virtual machine according to the user data, wherein the virtual user equipment is a mirror image of real user equipment.

S102, the wireless access network equipment acquires application data and server configuration information of an application server, generates a second virtual machine according to the server configuration information, and creates a virtual application server corresponding to the application server on the second virtual machine according to the application data;

Specifically, the radio access network device may obtain application data and server configuration information of the application server from the application server, where the application data represents context information generated in an operation process of the application server, the server configuration information represents hardware configuration information of hardware capability of the application server and software description information of software attributes, the radio access network device applies for corresponding hardware resources from an infrastructure layer according to the server configuration information to create a second virtual machine, the radio access network device creates a virtual application server corresponding to the virtual server in the second virtual machine according to the application server, and the virtual application server is a mirror image of a real application server.

Optionally, the obtaining, by the access network device, user data and device configuration information of a user device, generating a first virtual machine according to the device configuration information, and creating, in the first virtual machine, a virtual user device corresponding to the user device according to the user data includes:

Optionally, the access network device includes a data layer, a control layer, and a virtualization layer;

the data layer is used for storing the device configuration information, the user data, the application server configuration information and the application data, and the virtualization layer is used for bearing the virtual user device and the virtual application server;

and the access network equipment controls corresponding operation on the virtual user equipment and the virtual application server through the control layer.

Optionally, the method further includes:

when the access network equipment monitors that the user equipment is switched over, acquiring virtual machine context information and application program context information of the first virtual machine and the second virtual machine;

and sending the virtual machine context information and the application program context information to a target access network device through an X2 interface.

Optionally, the method further includes:

and if the continuous unused time of the virtual user equipment exceeds the preset time, entering a dormant state.

Optionally, the method further includes:

the access network equipment periodically detects whether the application program in the virtual application server is updated, and if so, the access network equipment informs the virtual application server to download the latest application program.

Optionally, the virtual user equipment and the virtual application server are in the same virtual machine, and the first virtual machine and the second virtual machine are the same virtual machine.

Optionally, the user equipment includes mobile user equipment and desktop user equipment.

Referring to fig. 6, a schematic structural diagram of a configuration apparatus of a radio access network device according to an embodiment of the present invention is provided, in the embodiment of the present invention, the configuration apparatus includes a first creation module 10 and a second creation module 20, wherein,

a first creating module 10, configured to obtain user data and device configuration information of a user device, generate a first virtual machine according to the device configuration information, and create, in the first virtual machine, a virtual user device corresponding to the user device according to the user data;

a second creating module 20, configured to obtain application data of an application server and server configuration information, generate a second virtual machine according to the server configuration information, and create a virtual application server corresponding to the application server on the second virtual machine according to the application data;

Further optionally, the first creating module 10 is configured to obtain user data of the user equipment from a core network device, and obtain device configuration information of the user equipment from the user equipment;

Further optionally, the configuration apparatus further includes:

The embodiment of the invention and the embodiment of the method are based on the same conception, the technical effects brought by the embodiment of the invention are also the same, the specific process can refer to the description of the embodiment of the method, and the detailed description is omitted here.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

A radio access network device, comprising: the system comprises a first virtual machine and a second virtual machine, wherein the first virtual machine is provided with virtual user equipment of user equipment, the second virtual machine is provided with a virtual application server of an application server, and the first virtual machine and the second virtual machine are provided with communication interfaces which are used for data transmission between the virtual user equipment and the virtual application server.
The radio access network device of claim 1, wherein the radio access network device is divided into a virtualization layer, a data layer, and a control layer, wherein the first virtual machine and the second virtual machine are located in the virtualization layer, and the data layer is configured to store user data of the user device, device configuration information of the user device, application data of the application server, and server configuration information of the application server; the control layer is used for carrying out corresponding operation on the virtual user equipment and the virtual application server.
The radio access network device according to claim 1 or 2, wherein the access network device acquires the virtual machine context information and the application context information of the first virtual machine and the second virtual machine when monitoring that the user equipment is handed over; and sending the virtual machine context information and the application program context information to a target wireless access network device through an X2 interface.
The ran apparatus of claim 3, wherein if the ran apparatus detects that the duration of the virtual ue remaining unused exceeds a preset duration, the virtual ue is controlled to enter the sleep state.
The ran apparatus of claim 4, wherein the ran apparatus periodically detects whether the application program in the virtual application server is updated, and if so, notifies the virtual application server to download the latest application program.
The radio access network device according to any of claims 1-5, wherein the virtual user device and the virtual application server are in the same virtual machine, the first virtual machine and the second virtual machine being the same virtual machine.
The radio access network device according to any of claims 1-6, wherein the user devices comprise mobile user devices and desktop user devices, and the application server comprises a lightweight application server.
A method for configuring a radio access network device, comprising:

the method comprises the steps that the wireless access network equipment acquires user data and equipment configuration information of user equipment, generates a first virtual machine according to the equipment configuration information, and creates virtual user equipment corresponding to the user equipment in the first virtual machine according to the user data;

the wireless access network equipment acquires application data and server configuration information of an application server, generates a second virtual machine according to the server configuration information, and creates a virtual application server corresponding to the application server on the second virtual machine according to the application data;

and a communication interface is arranged between the virtual user equipment and the virtual application server, and the communication interface is used for data transmission between the virtual user equipment and the virtual application server.
The method of claim 8, wherein the obtaining, by the access network device, user data and device configuration information of a user device, generating a first virtual machine according to the device configuration information, and creating, in the first virtual machine, a virtual user device corresponding to the user device according to the user data comprises:

the radio access network equipment acquires user data of the user equipment from core network equipment and acquires equipment configuration information of the user equipment from the user equipment;

and the wireless access network equipment acquires the application data and the server configuration information from the application server from core network equipment.
The method of claim 9, wherein the radio access network device comprises a data layer, a control layer, and a virtualization layer;

the data layer is used for storing the equipment configuration information, the user data, the application server configuration information and the application data;

the virtualization layer is used for bearing the virtual user equipment and the virtual application server;

and the wireless access network equipment controls corresponding operation on the virtual user equipment and the virtual application server through the control layer.
The method of claim 9 or 10, further comprising:

when the wireless access network equipment monitors that the user equipment is subjected to cell switching, acquiring virtual machine context information and application program context information of the first virtual machine and the second virtual machine;

and sending the virtual machine context information and the application program context information to a target wireless access network device through an X2 interface.
The method of claim 11, further comprising:

and if the duration of the continuous unused time of the virtual user equipment exceeds the preset duration, controlling the virtual user equipment to enter a dormant state.
The method of claim 12, further comprising:

the wireless access network equipment periodically detects whether the application program in the virtual application server is updated, and if so, informs the virtual application server to download the latest application program.
An apparatus for configuring a radio access network device, comprising:

the device comprises a first creating module, a second creating module and a third creating module, wherein the first creating module is used for acquiring user data and device configuration information of user equipment, generating a first virtual machine according to the device configuration information, and creating virtual user equipment corresponding to the user equipment in the first virtual machine according to the user data;

the second creating module is used for acquiring application data and server configuration information of an application server, generating a second virtual machine according to the server configuration information, and creating a virtual application server corresponding to the application server on the second virtual machine according to the application data;

and a communication interface is arranged between the virtual user equipment and the virtual application server, and the communication interface is used for data transmission between the virtual user equipment and the virtual application server.
The apparatus of claim 14, wherein the first creating module is configured to obtain user data of the ue from a core network device, and obtain device configuration information of the ue from the ue;

and acquiring the application data and the server configuration information from the application server from the core network equipment.
The apparatus of claim 14 or 15, further comprising:

the monitoring module is used for acquiring the virtual machine context information and the application program context information of the first virtual machine and the second virtual machine when monitoring that the user equipment is subjected to cell switching;

a sending module, configured to send the virtual machine context information and the application context information to a target radio access network device through an X2 interface.
The apparatus of claim 16, further comprising:

and the dormancy module is used for controlling the virtual user equipment to enter a dormancy state if the duration of the continuous unused time of the virtual user equipment exceeds the preset duration.
The apparatus of claim 17, further comprising:

and the updating module is used for periodically detecting whether the application program in the virtual application server is updated, and if so, informing the virtual application server to download the latest application program.