KR102237265B1 - Apparatus and method for processing packet - Google Patents

Abstract

The present disclosure relates to a packet processing apparatus and method in which a plurality of user terminals can share a bearer. A packet processing apparatus according to an embodiment of the present disclosure groups a plurality of user terminals using a mobile communication system according to preset conditions, and receives a network attachment request from any one of the grouped user terminals. In addition, a default bearer is set based on a network connection request, and packets transmitted and received between the grouped user terminals and an IP network are transmitted and received using the default bearer.

Description

Packet processing apparatus and method {APPARATUS AND METHOD FOR PROCESSING PACKET}

The present disclosure relates to a packet processing apparatus and method in which a plurality of user terminals can share a bearer.

Recently, due to the rapid development of telecommunications, computer networks, and semiconductor technologies, various services using wireless communication networks are being provided, as well as demands of consumers are increasing day by day, and the worldwide wireless Internet service market is exploding. It is a trend. Accordingly, a service provided by a mobile communication system using a wireless communication network is developing not only a voice service, but also a multimedia communication service that transmits various data. With the recent increase in smartphones and the increasing demand for data traffic, mobile communication providers are making investments in facilities and technologies in consideration of system load or impact in order to accommodate increased data traffic in various ways.

LTE (Long Term Evolution) is a network for realizing the requirements of high data rate, low-latency, and packet optimized radio access for an access network. It is designed to accommodate high-speed and rich media while ensuring backward compatibility for the existing 3GPP/non-3GPP access network. LTE is an All-IP-based network that excludes the existing 　circuit-switched-based communication, and 　Reinforces the quality of service (OoS) management function to provide real-time services (such as voice communication, video communication) and By providing differentiated QoS (Quality of Service) for real-time services (eg, web browsing, store and forward data transmission), the efficiency of network resources is improved. In addition, the bandwidth for wireless communication was expanded by introducing a smart antenna technology (ie, MIMO: multiple input multiple output).

In the Evolved Packet Core (EPC) network, which is an LTE core network, eNB (eNodeB) <-> Mobility Management Entity (MME), MME <-> S-GW (Serving Gateway) and S-GW < -> It operates organically between P-GW (Packet Data Network-Gateway) and performs call processing for voice and data processing. In the EPC network, control messages such as call establishment and release are recognized as IP packets (Internet Protocol Packet) and transmitted to the P-GW or received from the P-GW and transmitted to the user equipment (UE).

When the user terminal is first attached to the LTE EPC network, the eNB interworks with the MME to establish a default bearer and communicates with the public Internet network through a GTP (GPRS Tunneling Protocol) tunnel between the eNB and the S-GW. The user terminal becomes able to communicate. When the user terminal is connected to the LTE network, it basically creates a default bearer and sets one or more dedicated bearers as needed later to connect/communicate with the public Internet network. That is, all user terminals set one or more bearers to communicate with the public Internet network.

The present disclosure provides a packet processing apparatus and method in which a plurality of user terminals can share a bearer.

In the packet processing apparatus of a mobile communication system according to an embodiment of the present disclosure, a plurality of user terminals using the mobile communication system are grouped according to preset conditions, and a network connection request is made from any one of the grouped user terminals. request) to set a default bearer, and to control packets transmitted and received between grouped user terminals and an IP network to use the default bearer; And a storage unit for storing information on grouped user terminals and information on basic bearers.

In addition, in the packet processing apparatus according to an embodiment of the present disclosure, the control unit groups by using identification numbers of a plurality of user terminals or groups according to a wireless access method of a plurality of user terminals.

In addition, in the packet processing apparatus according to an embodiment of the present disclosure, identification numbers of a plurality of user terminals include International Mobile Subscriber Identity (IMSI) or International Mobile Equipment Identity (IMEI).

In addition, in the packet processing apparatus according to an embodiment of the present disclosure, a wireless access method of a plurality of user terminals includes a Wideband Code Division Multiple Access (W-CDMA), Long Term Evolution (LTE), or Internet of Things (IoT) method. do.

In addition, in the packet processing apparatus according to the embodiment of the present disclosure, the controller includes an Internet Protocol (IP) address, a Global Unique Temporary Identity (GUTI) for each user terminal, and a radio section bearer between a plurality of user terminals and a base station (eNodeB). bearer) identifier, and control to transmit the assigned IP address, GUTI, and radio section bearer identifier to the corresponding user terminal.

In addition, in the packet processing apparatus according to an embodiment of the present disclosure, when receiving a packet to be transmitted to an IP network from any one user terminal among a plurality of user terminals, the controller And acquires the IP address and port information of the basic bearer using the radio section bearer identifier, and transmits a packet received from any one user terminal to the IP network through the basic bearer using the IP address and port information of the basic bearer. .

In addition, in the packet processing apparatus according to an embodiment of the present disclosure, when receiving a packet to be transmitted to any one of a plurality of user terminals from an IP network, the control unit defaults to a destination IP address included in the received packet. If it matches the bearer's IP address, check the IP address and port information of any one user terminal using the destination IP address and port information, and receive from the IP network using the IP address and port information of any one user terminal. The packet is transmitted to any one user terminal.

In addition, a packet processing method in a mobile communication system according to an embodiment of the present disclosure includes grouping a plurality of user terminals using the mobile communication system according to preset conditions; Receiving a network connection request from any one of the grouped user terminals; Setting a default bearer based on a network access request; And transmitting/receiving packets transmitted/received between the grouped user terminals and an IP network using a basic bearer.

In addition, in the packet processing method according to an embodiment of the present disclosure, the grouping of a plurality of user terminals according to a preset condition may be performed by grouping using identification numbers of a plurality of user terminals or a wireless access method of a plurality of user terminals. Therefore, it includes the step of grouping.

In addition, in the packet processing method according to an embodiment of the present disclosure, identification numbers of a plurality of user terminals include International Mobile Subscriber Identity (IMSI) or International Mobile Equipment Identity (IMEI).

In addition, in the packet processing method according to an embodiment of the present disclosure, a wireless access method of a plurality of user terminals includes a Wideband Code Division Multiple Access (W-CDMA), Long Term Evolution (LTE), or Internet of Things (IoT) method. do.

In addition, in the packet processing method according to an embodiment of the present disclosure, the grouping of a plurality of user terminals according to a preset condition includes an Internet Protocol (IP) address, a Global Unique Temporary Identity (GUTI), and a plurality of user terminals for each user terminal. And allocating a radio section bearer identifier between them and a base station (eNodeB), and transmitting the assigned IP address, GUTI, and radio section bearer identifier to a corresponding user terminal.

In addition, in the packet processing method according to the embodiment of the present disclosure, the step of transmitting and receiving packets using a basic bearer is any one when receiving a packet to be transmitted to an IP network from any one of a plurality of user terminals. The IP address and port information of the basic bearer is obtained using the IP address, port information, and radio section bearer identifier of the user terminal of, and the packet received from any one user terminal is transmitted using the IP address and port information of the basic bearer. It includes the step of transmitting to the IP network through the basic bearer.

In addition, in the packet processing method according to an embodiment of the present disclosure, the step of transmitting and receiving packets using a basic bearer is, when a packet to be transmitted to any one of a plurality of user terminals is received from an IP network. If the destination IP address included in the packet matches the IP address of the basic bearer, the IP address and port information of any one user terminal is checked using the destination IP address and port information, and the IP address and the And transmitting the packet received from the IP network to any one user terminal using the port information.

According to embodiments of the present disclosure, since it is possible to prevent setting of different bearers for each user terminal, it is possible to reduce a load for processing packets transmitted and received in a mobile communication system.

1 is an exemplary diagram showing a configuration of a mobile communication system according to an embodiment of the present disclosure.
2 is an exemplary diagram showing the configuration of an EPC network according to an embodiment of the present disclosure.
3 is an exemplary diagram showing a configuration of a packet processing apparatus according to an embodiment of the present disclosure.
4 is a flowchart showing a procedure of a packet processing method according to an embodiment of the present disclosure.

Embodiments of the present disclosure are illustrated for the purpose of describing the technical idea of the present disclosure. The scope of the rights according to the present disclosure is not limited to the embodiments presented below or specific descriptions of these embodiments.

All technical terms and scientific terms used in the present disclosure, unless otherwise defined, have meanings generally understood by those of ordinary skill in the art to which the present disclosure belongs. All terms used in the present disclosure are selected for the purpose of more clearly describing the present disclosure, and are not selected to limit the scope of the rights according to the present disclosure.

Expressions such as "comprising", "having", "having", "having", and the like used in the present disclosure indicate the possibility of including other embodiments, unless otherwise stated in the phrase or sentence in which the expression is included. It should be understood as open-ended terms.

Expressions in the singular form described in the present disclosure may include the meaning of the plural form unless otherwise stated, and the same applies to the expression in the singular form described in the claims.

Expressions such as "first" and "second" used in the present disclosure are used to distinguish a plurality of elements from each other, and do not limit the order or importance of the corresponding elements.

The term "unit" used in the present disclosure means software or hardware components such as field-programmable gate array (FPGA) and application specific integrated circuit (ASIC). However, "unit" is not limited to hardware and software. The “unit” may be configured to be in an addressable storage medium, or may be configured to reproduce one or more processors. Thus, as an example, "unit" refers to components such as software components, object-oriented software components, class components, and task components, processors, functions, properties, procedures, subroutines, Includes segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. Components and functions provided within the "unit" may be combined into a smaller number of components and "units" or further separated into additional components and "units".

The expression "based on" as used in this disclosure is used to describe one or more factors that influence the act or action of a decision or judgment, which is described in a phrase or sentence in which the expression is included, and the expression is It does not exclude additional factors that influence the action or action of a decision or judgment.

In the present disclosure, when a component is referred to as being "connected" or "connected" to another component, a component can be directly connected to or can be connected to another component, or a new other component It is to be understood that it may or may be connected via an element.

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the accompanying drawings, the same or corresponding elements are denoted with the same reference numerals. In addition, in the description of the following embodiments, overlapping descriptions of the same or corresponding components may be omitted. However, even if description of a component is omitted, it is not intended that such component is not included in any embodiment.

In one embodiment, the mobile communication network is, for example, a GSM (Global System for Mobile communication), a 2G wireless communication network such as CDMA, an LTE network, a wireless Internet such as WiFi, a Wireless Broadband Internet (WiBro), and a World Interoperability for Microwave Access (WiMax). ), such as a mobile Internet network or a mobile communication network supporting packet transmission (e.g., a 3G mobile communication network such as WCDMA or CDMA2000, a 3.5G mobile communication network such as High Speed Downlink Packet Access (HSDPA) or High Speed Uplink Packet Access (HSUPA)), Or any other mobile communication network including a 4G mobile communication network, etc. currently in service) and a macro base station (macro eNodeB), a micro base station (Pico eNodeB, Home-eNodeB), and a user equipment (UE) as components. However, it is not limited thereto. Hereinafter, the LTE radio access network E-UTRAN (Evolved Universal Terrestrial Radio Access Network) will be mainly described.

As shown in FIG. 1, the mobile communication network may be composed of one or more network cells, and includes a HetNet (Heterogeneous Network) environment in which different types of network cells may be mixed in the mobile communication network. The mobile communication network is a micro base station (Pico eNodeB, Home-eNodeB, relay, etc.) that manages small network cells (e.g.,'small cells' such as picocells and femtocells) (11~15, 21~23, 31~33), macro eNodeB (10, 20, 30) that manages a wide range of cells (e.g.,'macro cell'), user terminal 40, SON (Self Organizing & Optimizing) Networks) server (50), Mobility Management Entity (MME) (60), Serving Gateway (S-GW) (80), Packet Data Network (PDN) Gateway (P-GW) (90), and Home Subscriber Server (HSS) It may include (100). Each component illustrated in FIG. 1 is exemplary, and each component of a mobile communication network in which the present disclosure may be implemented is not limited to that illustrated in the drawings.

Macro base stations (10, 20, 30), for example, can be used in LTE network, WiFi network, WiBro network, WiMax network, WCDMA network, CDMA network, UMTS network, GSM network, for example, a cell having a radius of about 1 km or less It may include the features of the macro cell base station that manages, but is not limited thereto.

Micro base stations (11-15, 21-23, 31-33) can be used in, for example, LTE network, WiFi network, WiBro network, WiMax network, WCDMA network, CDMA network, UMTS network, GSM network, etc. It may include features of a pico base station, an indoor base station or a femto base station, and a relay that manages cells having a radius of m to several tens of m, but is not limited thereto.

Subminiature base stations (11~15, 21~23, 31~33) and macro base stations (10, 20, 30) have their own SON server (50), MME (60), S-GW (80), and P-GW. (90), the HSS (100) can have connectivity with the core network.

The user terminal 40 is a mobile network used in a 2G wireless communication network such as a GSM network and a CDMA network, a wireless Internet network such as an LTE network and a WiFi network, a mobile Internet network such as a WiBro network and a WiMax network, or a mobile communication network supporting packet transmission. The characteristics of the terminal may be included, but the present invention is not limited thereto.

The management server (O&M server) 70, which is a network management device for a micro base station, is responsible for configuration information and management of the micro base stations 11 to 15, 21 to 23, 31 to 33 and macro base stations 10, 20, 30. . The management server 70 may perform all of the functions of the SON server 50, the MME 60, and the HSS 100. The SON server 50 may include an arbitrary server that performs macro/micro base station installation and optimization and provides basic parameters or data necessary for each base station. The MME 60 may include any entity used to manage the mobility of the user terminal 40 and the like. In addition, MME (60) performs the function of a base station controller (BSC: Base Station Controller), resource allocation, call control, handover control for the base station (pico eNodeB, Home-eNodeB, macro eNodeB, etc.) connected to itself, Voice and packet processing control, etc. can be performed. The HSS 100 is a kind of database for service/authentication of subscribers.

In one embodiment, one management server 70 can perform all of the functions of the SON server 50, the MME 60 and the HSS 100, and the SON server 50, the MME 60 and the HSS 100 may manage one or more macro base stations 10, 20, 30 and one or more micro base stations 11 to 15, 21 to 23, and 31 to 33.

In the mobile communication network, a network cell in which a macro cell, a pico cell, and a femto cell are mixed is assumed, but the network cell can be configured with only a macro cell-pico cell and a macro cell-femto cell.

Specifically, the micro base stations (11~15, 21~23, 31~33) can broadcast the system information SIB (System Information Block) to the femtocell area they manage, and the SIB has access to the femtocell. A CSG indicator (Closed Subscriber Group indicator) indicating whether or not it is restricted is included. SIB is a message in which a base station (HeNB, macro eNB) broadcasts information on its own cell to all user terminals 40, and is a CGI (Cell Global Identity) (the only cell identification factor in the network), CSG indication (micro eNB). A factor indicating that the base station is a base station), CSG ID (ID for a specific subscriber group), and the like.

When the mobile communication network is assumed to be an LTE network, the LTE network is linked to an inter-RAT network (WiFi network, WiBro network, WiMax network, WCDMA network, CDMA network, UMTS network, GSM network, etc.). When one of the inter-RAT networks (eg, WiBro network) is the mobile communication network, it is also interlocked with other networks (LTE network, WiFi network, WiMax network, WCDMA network, CDMA network, UMTS network, GSM network, etc.). In the drawing, one network (e.g., LTE network) and other networks (WiFi network, WiBro network, WiMax network, WCDMA network, CDMA network, UMTS network, GSM network, etc.) are shown separated, but one network and the other network are overlaid. (overlay) is assumed.

When subminiature base stations (11 to 15, 21 to 23, 31 to 33) or/and macro base stations (10, 20, 30) are collectively referred to as'base station device', the base station device of LTE (eNB in FIG. 2) ( 25-n), E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) has an IP-based flat structure and processes data traffic between the user terminal 40 and the core network. The signal control between them is in charge of the MME (60). The MME 60 is responsible for signal control between the eNB 25-n and the S-GW 80, and determines where to route data incoming from the user terminal 40 to. The S-GW (80) is in charge of an anchor function for the movement of user terminals between the eNBs (25-n), between the 3GPP network and the E-UTRAN, and to the IP network (110) through the P-GW (90). Connect. The core network equipment MME (60)/S-GW (80) manages a number of eNBs (25-n), and each eNB (25-n) is composed of several cells. The S1 interface ("S1-MME" and "S1-U" in FIG. 2) is used between the eNB (25-n) and the MME (60)/S-GW (80), and a hand between the eNBs (25-n) X2 interface (not shown) is used for over and SON functions.

The network interface is set up by setting an S1 interface that connects to the MME 60 at the center of the system and an X2 interface, which is a network line for direct communication with the eNBs 25-n of other cells present in the current system. The S1 interface exchanges signals with the MME 60 to exchange OAM (Operation and Management) information for supporting the movement of the user terminal 40. In addition, the X2 interface serves to exchange signals for fast handover, load indicator information, and information for self-optimization between the eNBs 25-n.

2 is an exemplary diagram showing the configuration of an EPC network according to an embodiment of the present disclosure.

E-UTRAN (25) is an LTE radio access network composed of eNBs (25-1,...25-n,...), IP-based, and between the UE (40) and the wireless communication core network (Core Network). It is located in and transfers data and control information. In addition, when a terminal using the LTE system uses a voice service, a paging request for the purpose of a circuit switch (CS) fallback and an SMS message to be provided with a voice service by moving to an existing 2G/3G mobile communication network is sent to the UE 40. ) And direct connection to a target cell where CS service is available.

In FIG. 2, "LTE-Uu" represents a radio interface between the E-UTRAN 25 and the UE 40, and "S1-MME" represents an interface between the MME 60 and the E-UTRAN 25, "S1-U" represents the interface between the S-GW (80) and the E-UTRAN (25), "S11" represents the interface between the S-GW (80) and the MME (60), and "S5/S8" "" denotes an interface between the P-GW 90 and the S-GW 80, and "SGi" may denote an interface between the IP network 110 and the P-GW 90. And "S6a" may represent an interface between the HSS (100) and the MME (60).

The UE 40 and the eNB (25-1,...25-n,...) of the E-UTRAN (25) communicate through the Radio Resource Control (RRC) protocol, and the eNB (25-n) The broadcasting message to the controlled cell area is defined as an RRC message. The RRC message may include control messages descending from the NAS (Non-Access Stratum) protocol, and the control messages are not read in the E-UTRAN 25 and are transparently transmitted to the UE 40 or the core network. .

The eNB (25-n) is an endpoint for the radio signal of the E-UTRAN (25), the control signal is interlocked with the MME (60) through the S1-MME interface, and the data traffic is S-GW through the S1-U interface. It is linked with (80). The S-GW 80 performs an anchor for mobility in the E-UTRAN 25 and a buffering function for downlink traffic. The P-GW 90 is a connection point of the external IP network 110 and performs IP allocation and billing for mobile subscribers and traffic control for user data.

The IP network 110 provides an IP Multimedia Subsystem (IMS) service to the UE 40 in the EPC network, and provides Policy & Charging Rule Function (PCRF), IMS nodes (e.g., Proxy Call Session Control Function (P-CSCF)). ), Interrogating Call Session Control Function (I-CSCF), Serving Call Session Control Function (S-CSCF), and Application Function (AF)).

The UE 40 exchanges call control messages for multimedia services with IMS nodes through the EPC bearer (provided by E-UTRAN/S-GW/P-GW) using the Gm Interface.

The E-UTRAN 25 provides a radio communication function to the UE 40 and performs a function of managing radio resources for this purpose.

The MME 60 may perform authentication of the UE 40 by receiving authentication information for authenticating the UE 40 from the HSS 100. In addition, the MME (60) manages the mobility of the UE (40) and the eNB (25-n) from the top of the eNB (25-n), and the establishment / release of the EPS (Evolved Packet System) session and bearer (Bearer) It can perform the same call control function. The UE 40 and inter-network mobility and session control are handled by the NAS protocol at the NAS (Non-Access Stratum) layer located in the control plane of the UE 40 and the MME 60, and the UE 40 The and MME 60 communicate with each other through NAS messages. NAS functions are largely divided into EMM (EPS Mobility Management) and ESM (EPS Session Management) functions. In addition, the MME 60 may be directly connected to the IP network 110 through the S-GW 80 and the P-GW 90. The call processing control signal of the eNB (25-n) is transmitted to the S-GW (80) through the MME (60), and according to the call processing control signal, the P-GW (90) sends a message for requesting work required for call processing. Can be transferred to. The EMM is a sub-layer located in the NAS layer. As the EMM procedure is performed, the UE 40 has 7 EMM states and the MME 60 has 4 EMM states. In order for the UE 40 and the MME 60 to send and receive NAS messages, a signaling connection through which NAS messages can be transmitted between the UE 40 and the MME 60 must be created, which is called an EPS Connection Management (ECM) connection. . The ECM connection is a logical connection and is actually composed of an RRC connection established between the UE 40 and the eNB 25-n and an S1 signaling connection established between the eNB 25-n and the MME 60. That is, when the ECM connection is established/released, it means that both the RRC connection and the S1 signaling connection have been established/released. When the ECM connection is established, the RRC connection is established when viewed from the UE 40, and the S1 signaling connection is established when viewed from the MME 60. ECM connection has a NAS signaling connection, that is, ECM-Connected (connection establishment) and ECM-Idle (connection release) status depending on whether or not ECM connection is established. According to the EMM procedure, the ECM-Connected state and the ECM-Idle state are frequently moved. This change process is called a state transition.

The S-GW (80) serves as a gateway between the 3GPP network and the E-UTRAN (25), and the handover between the eNBs (25-n) and the mobility of the UE (40) between the 3GPP network-3GPP networks (inter-3GPP) A mobility anchor function for provision may be performed. The S-GW 80 may transmit a task required for call processing to the P-GW 90 according to a control signal from the eNB 25-n.

The P-GW 90 may allocate an IP address to the UE 40 and apply different QoS policies for each UE 40. In addition, the P-GW 90 serves as a gateway to a packet data network (PDN) so that the UE 40 can access the Internet or a data network such as the Internet to receive a service.

As an embodiment, although the S-GW 80 and the P-GW 90 are separated and shown to communicate with the S5/S8 interface, the S-GW 80 and the P-GW 90 are connected to one gateway ( It can be implemented as a single gateway).

The HSS 100 may manage authentication information for authenticating the UE 40, location information of the UE 40, and a profile of the UE 40. The profile of the UE 40 may include QoS class information (eg, priority, maximum usable bandwidth, etc.) suitable for a service product to which each UE 40 subscribes. As an embodiment, authentication information for authenticating the UE 40 and a profile of the UE 40 may be transmitted from the HSS 100 to the MME 60 when the UE 40 connects to the network.

PCRF (not shown) manages the rules for policy and charging, and the P-GW 90 and S-GW 80 provide and use appropriate QoS to the UE 40. It allows you to perform the charging function for the bearer.

The IMS node (not shown) is composed of nodes such as P-CSCF, I-CSCF, S-CSCF, AF in detail, and the UE 40 provides multimedia services such as VoIP (Voice over IP) and video calls. give.

3 is an exemplary diagram showing a configuration of a packet processing apparatus according to an embodiment of the present disclosure.

As shown in FIG. 3, the packet processing apparatus 300 may include a control unit 310, a storage unit 320, a transmission/reception unit 330, and a system bus 340. According to an embodiment, the control unit 310, the storage unit 320, and the transmission/reception unit 330 may be connected to each other to enable communication through the system bus 340.

The controller 310 may group a plurality of user terminals 40 using the mobile communication system according to preset conditions. According to an embodiment, the control unit 310 groups a plurality of user terminals 40 by using the identification numbers of the plurality of user terminals 40, or the wireless access method of the plurality of user terminals 40 Accordingly, a plurality of user terminals 40 may be grouped, but the present invention is not limited thereto. Here, the identification numbers of the plurality of user terminals may include International Mobile Subscriber Identity (IMSI) or International Mobile Equipment Identity (IMEI), but are not limited thereto. In addition, the wireless access method of the plurality of user terminals 40 may include a Wideband Code Division Multiple Access (W-CDMA), Long Term Evolution (LTE), or Internet of Things (IoT) method, but is not limited thereto. .

In addition, the controller 310 may receive a network connection request from any one of the grouped user terminals and set a default bearer. According to an embodiment, when receiving a network access request from any one of the grouped user terminals, if a preset bearer does not exist, basic bearer configuration may be performed according to a standard procedure. In the standard basic bearer setup process, GUTIGUTI (Global Unique Temporary Identity) information for each user terminal, Internet Protocol (IP) address for each user terminal, a number of user terminals and base stations (10, 10) from the MME (60) and P-GW (90). 20, 30, 11 to 15, 21 to 23, 31 to 33) can receive information on the radio section bearer identifier, and the control unit 310 is itself an IP address, GUTI, and a plurality of users for each user terminal. Allocates radio section bearer identifiers between terminals and base stations (10, 20, 30, 11 to 15, 21 to 23, 31 to 33), and assigns the assigned IP address, GUTI, and radio section bearer identifier to the corresponding user terminals. The transmission is controlled to be transmitted, and the allocated IP address, GUTI, and radio section bearer identifier may be stored and managed in the storage unit 320.

In addition, the controller 310 may control packets transmitted and received between grouped user terminals and an Internet Protocol Network (IP) to use a set default bearer. According to an embodiment, when receiving a packet to be transmitted to the IP network 110 from any one user terminal 40 among a plurality of user terminals, the controller 310 The IP address and port information of the basic bearer is obtained by using the address, port information, and radio section bearer identifier, and the packet received from any one user terminal 40 is transferred to the basic bearer by using the IP address and port information of the basic bearer. It can be transmitted to the IP network 110 through. In addition, the control unit 310 uses destination IP address and port information included in the received packet when receiving a packet to be transmitted from the IP network 110 to any one of a plurality of user terminals. Thus, if the destination IP address matches the IP address of the basic bearer, the IP address and port information of any one user terminal 40 is checked using the destination IP address and port information, and the The packet received from the IP network 110 may be transmitted to any one user terminal 40 by using the IP address and port information.

The storage unit 320 may store information on user terminals grouped by the control unit 310 and information on a basic bearer. In addition, the storage unit 320 may store information on an IP address for each user terminal, a GUTI for each user terminal, and a radio section bearer identifier for each user terminal allocated by the control unit 310. In addition, the storage unit 320 may store the mapping table formed by the control unit 310 in the form shown in Table 1. The mapping table includes IDs of user terminals, ID-type, and wireless access method (RAT-Type). ), information on whether to select a service in the packet processing method according to an embodiment of the present disclosure may be included, but is not limited thereto.

ID ID-Type RAT-Type Service 2400015256407 IMSI Nb-Iot Yes 240001308539614 IMSI Nb-Iot Yes 4646681031 IMEI Nb-Iot Yes

According to an embodiment, the storage unit 320 includes read only memory (ROM), random access memory (RAM), compact disc (CD)-ROM, magnetic tape, floppy disk, and optical data. (Optical Data) It may be implemented in the form of a storage device or a carrier wave (for example, transmission through the Internet), but is not limited to this implementation.

The transceiver 330 may transmit and receive signals for performing a packet processing method. According to an embodiment, the transmission/reception unit 330 receives a network access request from the user terminal 40, transmits a signal for setting a basic bearer, and transmits a signal for setting a basic bearer, and the user terminal 40 and the IP network 110 Packets transmitted and received between) can be transmitted/received.

4 is a flowchart showing a procedure of a packet processing method according to an embodiment of the present disclosure. Although process steps, method steps, algorithms, and the like have been described in a sequential order in this flowchart, such processes, methods, and algorithms may be configured to operate in any suitable order. In other words, the steps of the processes, methods, and algorithms described in various embodiments of the present disclosure need not be performed in the order described in this disclosure. Further, although some steps are described as being performed asynchronously, in other embodiments, some of these steps may be performed simultaneously. Further, the illustration of the process by depiction in the drawings does not imply that the illustrated process excludes other changes and modifications thereto, and the illustrated process or any of its steps are among the various embodiments of the present disclosure. It does not imply that it is essential to one or more, nor that the illustrated process is desirable.

As shown in FIG. 4, in step S410, a plurality of user terminals using the mobile communication system are grouped according to preset conditions. For example, referring to FIGS. 1 to 3, the control unit 310 of the packet processing apparatus 300 groups a plurality of user terminals included in the mobile communication system and using the mobile communication system using identification numbers or The grouping may be performed according to the connection method, but is not limited thereto.

In step S420, a network connection request may be received from any one of the grouped user terminals. For example, referring to FIGS. 1 to 3, the control unit 310 of the packet processing apparatus 300 may determine which one of the grouped user terminals 40 accesses the corresponding mobile communication system for the first time. A network connection request according to the 3GPP General Packet Radio Service (GPRS) standard may be received from the terminal 40, but is not limited thereto.

In step S430, a basic bearer may be set based on the received network access request. For example, referring to FIGS. 1 to 3, the controller 310 of the packet processing apparatus 300 receives a network connection request from any one of the grouped user terminals, and the bearer for the corresponding group is received. Is set, and if a bearer is not set, it is based on the received network connection request.You can perform the procedure for setting a default bearer according to the 3GPP General Packet Radio Service (GPRS) standard, but limited to this. It doesn't work.

In step S440, packets transmitted/received between grouped user terminals and an IP network (Internet Protocol Network) may be transmitted/received using a preset basic bearer. For example, referring to FIGS. 1 to 3, the control unit 310 of the packet processing apparatus 300 transmits and receives packets transmitted and received between the grouped user terminals and the IP network 110. It is possible to transmit/receive between the user terminal 40 and the IP network 110 using a bearer.

Although the method has been described through specific embodiments, the method can also be implemented as computer-readable code on a computer-readable recording medium. The computer-readable recording medium includes all types of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tapes, floppy disks, optical data storage devices, etc., and also implemented in the form of a carrier wave (for example, transmission through the Internet). Includes. Further, the computer-readable recording medium is distributed over a computer system connected through a network, so that computer-readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the above embodiments can be easily inferred by programmers in the technical field to which the present disclosure belongs.

In the present specification, the present disclosure has been described in connection with some embodiments, but it should be understood that various modifications and changes may be made without departing from the spirit and scope of the present disclosure that can be understood by those skilled in the art to which the present disclosure belongs. something to do. In addition, such modifications and changes should be considered to fall within the scope of the claims appended hereto.

11~15, 21~23, 31~33: micro base station 10, 20, 30: macro base station
40: user terminal 50: SON server
60: MME 70: management server
80: S-GW 90: P-GW
100: HSS 110: IP network
300: packet processing device 310: control unit
320: storage unit 330: transmission and reception unit
340: system bus

Claims (14)

As a packet processing device of a mobile communication system,
A plurality of user terminals using the mobile communication system are grouped according to a preset condition, and a default bearer is set by receiving a network connection request from any one of the grouped user terminals, A control unit for controlling packets transmitted/received between the grouped user terminals and an IP network to use the basic bearer; And
Including a storage unit for storing information on the grouped user terminals and information on the basic bearer,
The wireless access method of the plurality of user terminals,
Including at least one of W-CDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution) and IoT (Internet of Things) method,
Packet processing unit. The method of claim 1,
The control unit,
Grouping using the identification numbers of the plurality of user terminals or grouping according to the wireless access method of the plurality of user terminals,
Packet processing unit. The method of claim 2,
Identification numbers of the plurality of user terminals,
Including IMSI (International Mobile Subscriber Identity) or IMEI (International Mobile Equipment Identity),
Packet processing unit. delete The method of claim 1,
The control unit,
An IP (Internet Protocol) address, a Global Unique Temporary Identity (GUTI), and a radio section bearer identifier between the plurality of user terminals and a base station (eNodeB) are allocated for each user terminal, and the assigned IP address, GUTI and radio Controlling to transmit an interval bearer identifier to a corresponding user terminal,
Packet processing unit. The method of claim 5,
The control unit,
When receiving a packet to be transmitted to the IP network from any one of the plurality of user terminals, the basic bearer is determined by using the IP address, port information and the radio section bearer identifier of the one user terminal. Obtaining IP address and port information, and transmitting a packet received from any one user terminal to the IP network through the basic bearer using the IP address and port information of the basic bearer,
Packet processing unit. The method of claim 5,
The control unit,
When receiving a packet to be transmitted to any one of the plurality of user terminals from the IP network, if the destination IP address included in the received packet matches the IP address of the basic bearer, the destination IP address and Check the IP address and port information of any of the user terminals using port information, and transfer the packet received from the IP network using the IP address and port information of any of the user terminals. Transmitted to,
Packet processing unit. As a packet processing method in a mobile communication system,
Grouping a plurality of user terminals using the mobile communication system according to preset conditions;
Receiving a network connection request from any one of the grouped user terminals;
Setting a default bearer based on the network access request; And
Including the step of transmitting and receiving packets transmitted and received between the grouped user terminals and an IP network (Internet Protocol Network) using the basic bearer,
The wireless access method of the plurality of user terminals,
Including at least one of W-CDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution) and IoT (Internet of Things) method,
Packet processing method. The method of claim 8,
Grouping the plurality of user terminals according to preset conditions,
Grouping using the identification numbers of the plurality of user terminals or grouping according to the wireless access method of the plurality of user terminals,
Packet processing method. The method of claim 9,
Identification numbers of the plurality of user terminals,
Including IMSI (International Mobile Subscriber Identity) or IMEI (International Mobile Equipment Identity),
Packet processing method. delete The method of claim 8,
Grouping the plurality of user terminals according to preset conditions,
An IP (Internet Protocol) address, a Global Unique Temporary Identity (GUTI), and a radio section bearer identifier between the plurality of user terminals and a base station (eNodeB) are allocated for each user terminal, and the assigned IP address, GUTI and radio Including the step of transmitting the interval bearer identifier to the corresponding user terminal,
Packet processing method. The method of claim 12,
Transmitting and receiving the packets using the basic bearer,
When receiving a packet to be transmitted to the IP network from any one of the plurality of user terminals, the basic bearer is determined by using the IP address, port information and the radio section bearer identifier of the one user terminal. Acquiring IP address and port information, and transmitting a packet received from one of the user terminals to the IP network through the basic bearer using the IP address and port information of the basic bearer,
Packet processing method. The method of claim 12,
Transmitting and receiving the packets using the basic bearer,
When receiving a packet to be transmitted to any one of the plurality of user terminals from the IP network, if the destination IP address and port information included in the received packet match the IP address of the basic bearer, the destination The IP address and port information of the user terminal is checked using IP address and port information, and the packet received from the IP network is transmitted using the IP address and port information of the user terminal. Including the step of transmitting to the user terminal of,
Packet processing method.

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