KR101871852B1

KR101871852B1 - Apparatus and method for providing virtualized communication cell

Info

Publication number: KR101871852B1
Application number: KR1020170096043A
Authority: KR
Inventors: 이지훈; 허예랑; 김경준
Original assignee: (주)주니코리아
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2018-06-27

Abstract

A device and method for providing a base station virtualization, the apparatus and method for providing a base station virtualization, the apparatus and method for providing virtualization of a base station, Receiving unique identification information for the device from the network and matching the private identification information with the private identification information and controlling transmission and reception of data between the network and the at least one base station based on a matching relationship between the private identification information and the unique identification information And a memory for storing a matching relation between the unique identification information and the private identification information.

Description

[0001] APPARATUS AND METHOD FOR PROVIDING VIRTUALIZED COMMUNICATION CELL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to a wireless base station virtualization providing apparatus and method, and more particularly, to a wireless base station virtualization providing apparatus and method, To a base station.

In recent years, wireless communication usage has increased exponentially with the spread of wireless mobile communication terminals.

In order to cover the amount of wireless communication, a medium to large-sized base station is installed and a small wireless base station is installed to disperse the processing load of wireless communication.

As the number of small wireless base stations increases, the number of IP addresses allocated for connection with the network at each base station increases exponentially.

As the number of wireless base stations increases, the number of IP addresses is limited according to the IP address system, and there is a problem that the IP addresses that can be allocated to the number of small wireless base stations are exhausted.

In addition, there is a problem that the cost for allocating and using an IP address for a wireless base station increases exponentially.

In the related art, Korean Patent Laid-Open No. 10-2001-7015624 discloses a multicast transmission system that transmits the same information to a plurality of mobile stations from a base station. In a multicast transmission system, The base station transmits a retransmission request signal to the base station. The base station determines whether or not the retransmission request is made based on the reception quality of the received signal. When the retransmission request is received, the base station retransmits the multicast signal corresponding to the retransmission request And the exhaustion of the IP address assigned to a plurality of base stations can not be solved.

Therefore, a technique for solving the above-described problems is required.

On the other hand, the background art described above is technical information acquired by the inventor for the derivation of the present invention or obtained in the derivation process of the present invention, and can not necessarily be a known technology disclosed to the general public before the application of the present invention .

The embodiments disclosed herein are aimed at providing an apparatus and method for providing wireless base station virtualization.

It is an object of the present invention to provide a method and an apparatus for providing base station virtualization that facilitates management according to the increase of base stations due to the installation of a mixed network including a medium and large wireless base station and a small wireless base station.

The embodiments disclosed herein are aimed at providing a method and apparatus for providing base station virtualization that unloads a network by uniting a plurality of base stations.

Embodiments disclosed herein are aimed at providing a method and apparatus for providing base station virtualization that allows a base station to be easily expanded by unifying a plurality of base stations with one single base station.

According to an embodiment of the present invention, there is provided an apparatus for providing virtualization of a base station, the system comprising: a base station for allocating and registering private identification information for each of at least one base station connecting a user terminal to a network And transmitting and receiving data between the network and the at least one base station based on a matching relationship between the private identification information and the unique identification information, And a memory for storing a matching relation between the unique identification information and the private identification information.

According to another embodiment, there is provided a method of providing virtualization of a base station, the method comprising: allocating and registering private identification information for each of at least one base station connecting a user terminal to a network; Receiving unique identification information from the at least one base station and matching the received private identification information with the private identification information, and controlling transmission / reception of data between the network and the at least one base station based on a matching relationship between the private identification information and the unique identification information have.

1 is a block diagram illustrating a network configuration including a virtualization providing apparatus according to an embodiment.
2 is a block diagram illustrating an apparatus for providing virtualization according to one embodiment.
3 to 4 are flowcharts illustrating a method of providing virtualization according to an embodiment.

Various embodiments are described in detail below with reference to the accompanying drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the features of the embodiments, detailed descriptions of known matters to those skilled in the art are omitted. In the drawings, parts not relating to the description of the embodiments are omitted, and like parts are denoted by similar reference numerals throughout the specification.

Throughout the specification, when a configuration is referred to as being "connected" to another configuration, it includes not only a case of being directly connected, but also a case of being connected with another configuration in between. In addition, when a configuration is referred to as "including ", it means that other configurations may be included, as well as other configurations, as long as there is no specially contradicted description.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

Before describing this, we first define the meaning of the terms used below.

In the present invention, a 'base station' is a device that relays data between a network and a user terminal.

Among the base stations, a base station forming a session with a current user terminal is referred to as a 'source base station', and a base station performing a handover with a source base station according to movement of a user terminal is referred to as a 'target base station'.

A 'base station tunnel' is a tunnel formed for handing over a session formed between a source base station and a user terminal to a target base station.

Such a base station tunnel may be an Internet Protocol Security (IPsec) tunnel according to the X2 interface scheme for each of the source base station and the target base station.

The core network is an MME (Mobility Management Entity) that controls the functions of the base station and an SGW (Serving GateWay) that relays data received from the base station to other base stations. In the following description, it is assumed that the core network and the network are the same.

The 'core tunnel' is a tunnel formed by the source base station with the network in order to perform inter-base station handover, and may be a tunnel according to the S1 interface scheme.

The 'context information' is information including identification information for specifying one base station, for example, an eNB ID (Evolved Node B ID) as a single identifier for identifying the base station, a cell identifier An ID (Cell ID), and an IP (internet protocol) address, which is an address assigned to transmit / receive data to / from the network.

At this time, the identification information included in the context information is referred to as 'unique identification information' including an identifier assigned by the network, and is referred to as 'private identification information' including an identifier assigned by a virtualization providing device to be described later.

Terms other than those defined above are explained below separately.

1 is a network configuration diagram including a virtualization provision apparatus according to an embodiment.

The user terminal 10 can be implemented as a computer, a portable terminal, a television, a wearable device, or the like, which can be connected to a remote server through a network N or connected to other terminals and servers. Here, the computer includes, for example, a notebook computer, a desktop computer, a laptop computer, and the like, each of which is equipped with a web browser (WEB Browser), and the portable terminal may be a wireless communication device , Personal Communication System (PCS), Personal Digital Cellular (PDC), Personal Handyphone System (PHS), Personal Digital Assistant (PDA), Global System for Mobile communications (GSM), International Mobile Telecommunication (IMT) (W-CDMA), Wibro (Wireless Broadband Internet), Smart Phone, Mobile WiMAX (Mobile Worldwide Interoperability for Microwave Access) (Handheld) based wireless communication device. In addition, the television may include an Internet Protocol Television (IPTV), an Internet television (TV), a terrestrial TV, a cable TV, and the like. Further, the wearable device is an information processing device of a type that can be directly worn on a human body, for example, a watch, a glasses, an accessory, a garment, shoes, and the like. The wearable device can be connected to a remote server via a network, Lt; / RTI >

The base station 20 can relay data transmission / reception between the user terminal 10 and the network 40.

The base station 20 can be divided into a macro / micro / pico base station and a small base station (small cell, femtocell, HeNB, etc.) according to the size of the area to be controlled.

The base station 20 can be assigned an eNB ID, which is a unique identifier indicating each base station, and at least one cell ID, which is an identifier for an area covered by each base station 20, can be allocated.

The virtualization provision device 30 is a device that allows the network to recognize at least one base station 20 as a single base station.

That is, the virtualization providing device 30 is connected to the virtualization target base stations. It is possible to connect to a plurality of base stations by using respective IP addresses and respective unique eNB IDs and perform base station grouping in terms of the LTE S1AP protocol so that the LTE network MME and SGW can be seen as a single base station .

In addition, the virtualization providing device 30 may assign identification information for virtualization to the user terminal 10 or the base station 20, respectively. For example, when the base station initially accesses the virtualization providing apparatus 30, the base station 20 may assign the IP address, the eNB ID, or the cell ID, which is private identification information, to the user terminal 10, (User Equipment ID) or data tunnel ID, which is identification information of the user terminal 10 on the network allocated to the user terminal 10.

The virtualization providing device 30 may perform conversion between the private identification information allocated to the base station 20 and the unique identification information allocated from the network. For example, when communicating with an LTE network, the virtualization providing device 30 may convert the IP address of the packet to an IP address assigned to the base station.

At this time, the virtualization providing device 30 may store the matching relation between the private identification information allocated for virtualization of the base station 20 and the identification information of the actual base station. For example, the virtualization provision device 30 may include information on the grouped base station 20, IP address allocation and conversion information, eNB ID and Cell ID assignment and conversion information, UE ID assignment information for a virtual base station, Tunnel ID assignment information, and the like.

The virtualization providing apparatus 30 can allocate the identification information to at least one base station 20 to be virtualized and perform conversion between the identification information allocated to each base station 20 and the identification information allocated from the network So that all packets transmitted to the network through this can be transmitted using a single IP address and a single eNB ID.

The virtualization providing apparatus 30 can perform handover in the base station 20 that is a virtualization object without supporting the network and can perform handover in the virtualization providing apparatus 30 by using the neighbor of the base station 20 ) Registration can be processed.

The virtualization providing apparatus 30 may register a plurality of base stations 20 to be virtualized. However, for convenience of description, the two base stations 21 and 22 are virtualized by the virtualization providing apparatus 30 Explain.

2 is a diagram showing a configuration of a virtualization providing apparatus 30 according to an embodiment. Referring to FIG. 2, the virtualization providing apparatus 30 may include an input / output unit 110, a control unit 120, a communication unit 130, and a memory 140 according to an embodiment of the present invention.

The input / output unit 110 may include an input unit for receiving an input from a user, and an output unit for displaying information such as a result of performing a task or a status of the virtualization providing apparatus 30. [ For example, the input / output unit 110 may include an operation panel for receiving user input and a display panel for displaying a screen.

In particular, the input unit may include devices capable of receiving various types of user input, such as a keyboard, a physical button, a touch screen, a camera or a microphone. Also, the output unit may include a display panel or a speaker. However, the present invention is not limited to this, and the input / output unit 110 may include various input / output support structures.

The control unit 120 controls the overall operation of the virtualization providing apparatus 30 and may include a processor such as a CPU. The control unit 120 may control other components included in the virtualization providing apparatus 30 to perform an operation corresponding to the user input received through the input / output unit 110.

For example, the control unit 120 may execute a program stored in the memory 140, read a file stored in the memory 140, or store a new file in the memory 140. [

When the control unit 120 obtains a connection request from the base station 20, the control unit 120 transmits at least one of an IP address, which is information allocated to the base station for transmitting / receiving data with the network, and a cell ID, Information can be allocated and registered.

For example, when the control unit 120 receives a request for allocation of an IP address from the base station 20, the control unit 120 may assign a private IP address through a Dynamic Host Configuration Protocol (DHCP) server (not shown) .

For example, the control unit 120 may assign an eNB ID or a cell ID according to a SON (Self-Organizing Network) function and procedure of the base station 20 using the DHCP option field.

The control unit 120 may store context information including identification information allocated to the base station 20 in a memory 140, which will be described later.

For example, the control unit 120 may store an IP address, an eNB ID, or a cell ID as the context information of the base station 20. [

The control unit 120 may assign unique identification information to the virtualization providing apparatus 30 from the network and may match the private identification information of the base station 20.

For example, the control unit 120 may request an IP address assignment from a network, such as a single base station, and may store an IP address assigned from the network.

The control unit 120 can control data transmission / reception between the network and the base station 20 based on the matching relationship between the private identification information and the unique identification information. The control unit 120 controls the data transmission / Lt; / RTI >

[First Embodiment-Control Packet Processing on Control Plane]

According to one embodiment, the control unit 120 can receive a control packet, which is data including a control command for signaling of the user terminal 10, from the network, analyze the received control packet, and transmit the control packet to the base station 20 .

At this time, the controller 120 can reassign the UE ID, which is the identification information of the user terminal 10 allocated by the base station 20, and the UE ID, The UE ID and the virtualization provisioning device UE ID can be stored.

According to another embodiment, the control unit 120 can receive a control packet, which is data including a control command irrelevant to the user terminal 10, from the network, and transmit the received control packet to all the base stations 20, Or may not deliver it.

For example, when a control command needs to be transmitted to the entire base station 20, the controller 120 may convert the IP address and the eNB ID included in the control packet using the private identification information of each base station, and transmit the converted IP address and eNB ID.

For example, when a control command needs to be transmitted to a specific base station, the control unit 120 can identify the corresponding specific base station based on the cell ID included in the control packet, and determine the IP address of the base station and the eNB ID The control packet can be changed and transmitted.

[Second Embodiment-Data Packet Processing on Data Planes]

According to one embodiment, the controller 120 converts the private identification information included in the data packet obtained from the base station 20, which is requested to access the network, from the user terminal 10 into unique identification information and transmits the data packet to the network .

According to another embodiment, the control unit 120 may convert the unique identification information included in the data packet received from the network into private identification information and transmit the data packet to the base station 20 corresponding to the converted private identification information.

For example, the control unit 120 can reassign the TEID in addition to the TEID (Tunnel Endpoint ID) allocated to the base station 20 when a new data connection is established, and can transmit the TEID of the base station 20, The TEID of the base station 20 and the IP address of the base station 20 may be stored. Thereafter, the control unit 120 may convert the IP address included in the data packet and transmit the converted IP address to the base station 20.

At this time, the control unit 120 can use the GTP (Go Text Protocol) and specify the base station 20 to transmit the data packet based on the TEID included in the data packet, which is all GTP messages.

Meanwhile, the controller 120 may configure a neighbor between the base stations 20 to support handover between the base stations 20 virtualized by the virtualization providing device 30.

That is, since at least one base station 20 registered in the virtualization providing apparatus 30 is recognized as one eNB ID in the network, the control unit 120 performs X2 handover, which is a direct communication between the plurality of base stations 20 The virtualization providing apparatus 30 can be registered as a neighbor base station of the base station 20. [

The control unit 120 can form a core tunnel which is an interface formed by the base station for handover with the network to the base station 21 connected to the virtualization providing apparatus 30, Information can be allocated to store the context information.

Then, the controller 120 may form a base station tunnel, which is an interface formed for handover between the base stations, with the base station 21.

The control unit 120 sets the base station 22 corresponding to the remaining cell IDs excluding the cell ID included in the private identification information of the base station 21 to the virtualization providing apparatus 30, The virtualization providing device 30 may provide a message to the base station.

For example, the control unit 120 transmits the cell IDs 2 to 8 of all the base stations that have virtualized itself except the cell ID 1 of the base station 21 that requested the handover to the Served Cells To Quot; Add " to the base station 21 as shown in FIG.

Accordingly, the base station receiving the message can recognize that the counterpart base station transmitting the message is a base station having all the cell IDs, and can register the corresponding cell IDs as a neighbor base station.

At this time, the control unit 120 can update the information on the neighbor base stations of the remaining base stations 22 except for the registered base stations 21.

For example, the control unit 120 transmits to the existing base stations the newly registered cell ID 1 in the "Served Cells To Add" item of the "ENB Configuration Update" X2AP message and transmits the new cell ID to the neighbors 21 ) Can be added.

Thereafter, when the user terminal 10 enters the handover procedure, the controller 120 can perform handover.

That is, the control unit 120 transmits the first identification information allocated to the user terminal 10 by the source base station 21 requesting the handover to the second identification information which is reassigned to the user terminal 10 for handover And transmits the second identification information to the target base station 22 to request the handover.

For example, when the control unit 120 receives the UE ID assigned to the user terminal 10 by the source base station 21 together with the handover request to the virtualization provision apparatus 30 in which the source base station 21 is the neighbor base station, The control unit 120 can separately generate the UE ID for the virtualization providing apparatus 30 and can acquire the UE ID of the source base station 21 which is the context information for the user terminal 10 and the UE ID of the virtualization providing apparatus 30, The IP address of the source base station 21 or the eNB ID of the source base station 21. The control unit 120 may convert the UE ID assigned to the user terminal 10 by the source base station 21 into the UE ID for the virtualization providing apparatus 30 and transmit the converted UE ID to the target base station 22. [

Thereafter, upon receiving the handover response from the target base station 22, the control unit 120 searches the UE ID to acquire the context information of the user terminal 10, and transmits the UE ID included in the data corresponding to the handover response to the source base station To the source base station 21 by converting it into the UE ID assigned by the base station 21 and handover it.

At this time, it is generally required to transmit information about the handover target base station to the MME of the network. However, when the handover between the base stations 20 in the virtualization providing apparatus 30 is performed, The virtualization providing device 30 does not transmit a message to the network for the handover, thereby reducing the load on the network.

The communication unit 130 can perform wired / wireless communication with another device or a network. To this end, the communication unit 130 may include a communication module supporting at least one of various wired / wireless communication methods. For example, the communication module may be implemented in the form of a chipset.

The wireless communication supported by the communication unit 130 may be Wi-Fi (Wireless Fidelity), Wi-Fi Direct, Bluetooth, UWB (Ultra Wide Band), NFC (Near Field Communication), or the like. The wired communication supported by the communication unit 130 may be, for example, USB or High Definition Multimedia Interface (HDMI).

Various types of data such as files, applications, programs, and the like can be installed and stored in the memory 140. [ The control unit 120 may access the data stored in the memory 140 and use the data or store the new data in the memory 140. [ Also, the control unit 120 may execute a program installed in the memory 140. [

The memory 140 may store the matching relationship between the unique identification information allocated by the control unit 120 from the network and the private identification information allocated to the base station 20 by the controller 120. [

3 to 4 are flowcharts illustrating a method of providing virtualization according to an embodiment.

The virtualization provisioning method according to the embodiment shown in Figs. 3 to 4 includes the steps of time-series processing in the virtualization provision apparatus 30 shown in Fig. Therefore, even if omitted from the following description, the above description regarding the virtualization providing apparatus 30 shown in FIG. 2 can be applied to the virtualization providing method according to the embodiment shown in FIGS.

3 is a flowchart showing a method of providing virtualization for transmitting and receiving data by the virtualization providing device 30.

First, the virtualization providing device 30 can assign and register private identification information to each of the at least one base stations 20 connecting the user terminal 10 to the network (S3001).

For example, when the virtualization provision device 30 acquires a connection request from at least one base station 21 of at least one base station 20, the virtualization provision device 30 transmits the IP address, which is the identification information of the base station 21 for transmitting / And the cell ID, which is the identification information of the area covered by the base station 21, as private identification information.

In addition, the virtualization providing device 30 may assign unique identification information to the virtualization providing device 30 from the network, and may match the private identification information with the private identification information (S3002).

For example, the virtualization providing device 30 may include information on the grouped base station 20, IP address assignment and conversion information, eNB ID and cell ID assignment and conversion information, UE ID assignment information for a virtual base station, Tunnel ID assignment information, and the like.

Then, the virtualization providing device 30 can control data transmission / reception between the network of the network and the at least one base station 20 based on the matching relation between the private identification information and the unique identification information (S3003).

That is, the virtualization providing device 30 can perform conversion between the identification information allocated to each base station 20 and the identification information allocated from the network, and all of the packets transmitted to the network are transmitted with a single IP address and a single eNB ID As shown in FIG.

According to one embodiment, the virtualization providing device 30 transmits unique identification information included in the control message to the cell ID corresponding to the cell ID based on the cell ID included in the control message for controlling the at least one base station from the network It can be updated with private identification information and transmitted.

According to another embodiment, the virtualization providing device 30 converts the private identification information included in the data packet obtained from the called station, which has been requested to access the network, from the user terminal into the unique identification information, Lt; / RTI >

The virtualization providing apparatus 30 may convert the unique identification information included in the data packet received from the network into private identification information of the base station and transmit the data packet to the base station.

4 is a flowchart illustrating a virtualization providing method for performing inter-base station handover registered in the virtualization providing device 30. [

First, the virtualization providing device 30 may register the virtualization providing device 30 as a neighbor base station of the base station 21 requesting registration (S4001).

To this end, the virtualization provision apparatus 30 may form a core tunnel, which is an interface formed for handover between the network and the base station, with the base station 21 connected to the virtualization provision apparatus 30. [ For example, the virtualization provision device 30 may form an S1 connection, which is a core tunnel, with the base station 21 requesting a new registration.

Then, when the base station 21 starts radio transmission, the virtualization provision apparatus 30 can allocate private identification information to the base station 21, and provide context information including private identification information for the base station 21 Can be stored.

The virtualization provision device 30 may form a base station tunnel, which is an interface formed for handover between base stations, with the base station 21. [ For example, the virtualization provisioning device 30 may establish an X2 connection with the base station 21.

Then, the virtualization providing apparatus 30 can set the virtualization providing apparatus 30 as a base station corresponding to the cell IDs other than the cell ID included in the private identification information of the base station 21. [

For example, when the X2 connection with the base station 21 is established, the virtualization providing apparatus 30 transmits the cell IDs 2 to 8 of the remaining base stations 22 excluding the cell ID 1 of the base station 21 to the " ENB Configuration Update To the " Served Cells To Add " item of the " X2AP message "

The virtualization provision apparatus 30 can update the information on the neighbor base station 22 of the remaining base station 22.

For example, the virtualization provision apparatus 30 transmits the cell ID "1" newly registered in the "Served Cells To Add" item of the "ENB Configuration Update" X2AP message to the remaining base station 22, Can be added.

Thereafter, the virtualization providing device 30 may process the handover between the virtualized base stations (S4002).

First, the virtualization provision apparatus 30 transmits a first identification information allocated to the user terminal 10 by the source base station 21 requesting the handover to a second identification Information.

The virtualization providing apparatus 30 may transmit the second identification information to the target base station 22 to request a handover and receive a handover response message from the target base station 22. [

Thereafter, the virtualization providing device 30 may convert the second identification information included in the response message into the first identification information, and transmit the converted first identification information to the source base station 21 so that the handover can be performed.

In this way, the virtualization providing apparatus 30 can distribute the load of the network by unifying the plurality of base stations, and can easily expand the base stations by unifying the plurality of base stations with one single base station.

The term " part " used in the above embodiments means a hardware component such as a software or a field programmable gate array (FPGA) or an ASIC, and the 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program patent code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

The functions provided within the components and components may be combined with a smaller number of components and components or separated from additional components and components.

In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

The virtualization provisioning method according to the embodiment described with reference to Figs. 3 to 4 may also be implemented in the form of a computer-readable medium for storing instructions and data executable by a computer. At this time, the command and data may be stored in the form of program code, and when executed by the processor, a predetermined program module may be generated to perform a predetermined operation. In addition, the computer-readable medium can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. The computer-readable medium can also be a computer storage medium, which can be volatile and non-volatile, implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, For example, computer recording media may include magnetic storage media such as HDDs and SSDs, optical recording media such as CD, DVD and Blu-ray discs, or other types of media accessible via a network. May be the memory included in the server.

Also, the virtualization providing method according to the embodiment described with reference to Figs. 3 to 4 may be implemented as a computer program (or a computer program product) including instructions executable by a computer. A computer program includes programmable machine instructions that are processed by a processor and can be implemented in a high-level programming language, an object-oriented programming language, an assembly language, or a machine language . The computer program may also be recorded on a computer readable recording medium of a type (e.g., memory, hard disk, magnetic / optical medium or solid-state drive).

Thus, the method for providing virtualization according to the embodiment described with reference to Figs. 3 to 4 can be realized by the computer program as described above being executed by the computing device. The computing device may include a processor, a memory, a storage device, a high-speed interface connected to the memory and a high-speed expansion port, and a low-speed interface connected to the low-speed bus and the storage device. Each of these components is connected to each other using a variety of buses and can be mounted on a common motherboard or mounted in any other suitable manner.

Where the processor may process instructions within the computing device, such as to display graphical information to provide a graphical user interface (GUI) on an external input, output device, such as a display connected to a high speed interface And commands stored in memory or storage devices. As another example, multiple processors and / or multiple busses may be used with multiple memory and memory types as appropriate. The processor may also be implemented as a chipset comprised of chips comprising multiple independent analog and / or digital processors.

The memory also stores information within the computing device. In one example, the memory may comprise volatile memory units or a collection thereof. In another example, the memory may be comprised of non-volatile memory units or a collection thereof. The memory may also be another type of computer readable medium such as, for example, a magnetic or optical disk.

And the storage device can provide a large amount of storage space to the computing device. The storage device may be a computer readable medium or a configuration including such a medium and may include, for example, devices in a SAN (Storage Area Network) or other configurations, and may be a floppy disk device, a hard disk device, Or a tape device, flash memory, or other similar semiconductor memory device or device array.

It will be apparent to those skilled in the art that the above-described embodiments are for illustrative purposes only and that those skilled in the art will readily understand that various changes and modifications can be made without departing from the spirit or scope of the present invention. You will understand. It is therefore to be understood that the above-described embodiments are to be considered in all respects only as illustrative and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

It is to be understood that the scope of the present invention is defined by the appended claims rather than the foregoing description and should be construed as including all changes and modifications that come within the meaning and range of equivalency of the claims, .

10: User terminal
20: Base station
21: source base station 22: target base station
30: Virtualization provisioning device
110: input / output unit 120:
130: communication unit 140: memory
N: Network

Claims

A virtualization provision apparatus for providing virtualization of a base station,
Assigning and registering private identification information for each of at least one base station connecting a user terminal to a network, assigning unique identification information to the virtualization providing apparatus from the network and matching the private identification information with the private identification information, And controlling transmission / reception of data between the network and the at least one base station based on a matching relationship between the unique identification information and the unique identification information. And
And a memory for storing a matching relation between the unique identification information and the private identification information,
Wherein,
A core tunnel, which is an interface formed for handover between the network and the base station, is formed with a base station connected to the virtualization providing apparatus, a base station tunnel, which is an interface formed for handover between base stations, is formed with the base station, And registers the virtualization providing apparatus with a neighbor base station of the virtualization providing apparatus.

The method according to claim 1,
Wherein,
The method comprising the steps of: receiving at least one of the at least one base station and the at least one base station, acquiring a connection request, and transmitting at least one of an IP address, which is information allocated to a base station for transmitting and receiving data, And allocates the information as information.

3. The method of claim 2,
Wherein,
And updates unique identification information included in the control message to private identification information corresponding to the cell ID based on a cell ID included in a control message for controlling the at least one base station from the network.

3. The method of claim 2,
Wherein,
And converts the private identification information included in the data packet obtained from the base station that has obtained the connection request from the user terminal into the unique identification information and transmits the data packet to the network.

5. The method of claim 4,
Wherein,
And converts the unique identification information included in the data packet received from the network into private identification information of the base station and transmits the data packet to the base station.

delete

The method according to claim 1,
Wherein,
And sets the virtualization providing apparatus as a base station corresponding to a cell ID other than the cell ID included in the private identification information of the base station.

9. The method of claim 8,
Wherein,
And updates information about a neighbor base station of the base station corresponding to the remaining cell ID.

The method according to claim 1,
Wherein,
Converts the first identification information allocated to the user terminal by the source base station that has requested the handover to the second identification information that has been reassigned to the user terminal for handover and transmits the second identification information to the target base station And requests the handover.

11. The method of claim 10,
Wherein,
Upon receipt of the handover response message from the target base station, converts the second identification information included in the response message into the first identification information and transmits the first identification information to the source base station.

A method for providing virtualization of a base station, the method comprising:
Assigning and registering private identification information to each of at least one base station connecting a user terminal to a network;
Assigning unique identification information to the virtualization providing apparatus from the network and matching the private identification information with the private identification information; And
And controlling transmission / reception of data between the network and the at least one base station based on a matching relationship between the private identification information and the unique identification information,
The virtualization providing method includes:
Forming a core tunnel, which is an interface formed for handover between the network and the base station, with a base station connected to the virtualization providing device; And
Further comprising forming a base station tunnel, which is an interface formed for handover between the base stations, with the base station,
The virtualization providing method includes:
And registering the virtualization provisioning device to a neighbor base station of the base station.

13. The method of claim 12,
Wherein the step of assigning and registering the private identification information comprises:
The method comprising: receiving at least one of the at least one base station and at least one of the base stations, at least one of an IP address, which is identification information of a base station for transmitting / receiving data with the network, And assigning the information as information.

14. The method of claim 13,
The virtualization providing method includes:
Further comprising updating unique identification information included in the control message with private identification information corresponding to the cell ID based on a cell ID included in a control message for controlling the at least one base station from the network , Providing virtualization.

14. The method of claim 13,
The virtualization providing method includes:
Further comprising converting the private identification information included in the data packet obtained from the base station that has obtained the connection request from the user terminal into the unique identification information and transmitting the data packet to the network.

16. The method of claim 15,
The virtualization providing method includes:
Further comprising converting unique identification information included in a data packet received from the network into private identification information of the base station and transmitting the data packet to the base station.

delete

13. The method of claim 12,
The step of registering the virtualization provision apparatus with a neighbor base station of the base station includes:
And setting the virtualization providing apparatus as a base station corresponding to a cell ID other than the cell ID included in the private identification information of the base station.

20. The method of claim 19,
The virtualization providing method includes:
And updating information on a neighbor base station of a base station corresponding to the remaining cell ID.

13. The method of claim 12,
The virtualization providing method includes:
Assigning first identification information to the user terminal for the handover;
Converting the first identification information allocated to the user terminal by the source base station requesting the handover to second identification information reallocated to the user terminal for the handover; And
And transmitting the second identification information to the target base station to request the handover.

22. The method of claim 21,
The virtualization providing method includes:
Receiving a response message for the handover from the target base station, converting the second identification information included in the response message to the first identification information, and transmitting the first identification information to the source base station.

A computer-readable recording medium on which a program for performing the method according to claim 12 is recorded.

A computer program stored in a medium for performing the method of claim 12 performed by a virtualization provisioning device.