KR101258985B1 - Private Mobile Service System Using WCDMA and Method Thereof - Google Patents

Abstract

The present invention relates to a private wireless service system using WCDMA and a control method thereof, comprising: a plurality of private MSCs providing private voice services or internal data services using private exchanges and a plurality of Node-Bs for each site; Stores the information of the subscriber and the Node-B for each site managed by the service, IMCR for performing packet relay between the plurality of private MSC and private RNC, and determines whether the message received from the terminal is a message for the internal network service, If the message is for a local network service, only one private RNC is provided by providing a WCDMA private radio service system and method including a private RNC for transmitting the message to a private MSC of the site to which the terminal belongs via IMCR. WCDMA public wireless network service and no on-premises service for WCDMA wireless subscribers at multiple sites. It is possible to provide envy service at the same time.

Description

Private wireless service system using WCDMA and its control method {Private Mobile Service System Using WCDMA and Method Thereof}

1 is a block diagram illustrating a WCDMA network for providing a private wireless network service according to a first embodiment of the present invention.

2 is a block diagram illustrating a WCDMA network for providing a private wireless network service using one private RNC according to a second embodiment of the present invention.

3 is a block diagram showing an internal configuration of a private RNC, an IMCR, and a private MSC according to a second embodiment of the present invention.

4 is a flowchart illustrating a system initialization method using a second embodiment of the present invention.

5 is a flowchart illustrating a method for processing in-house signaling of a private WCDMA network using a second embodiment of the present invention.

6 is a flowchart illustrating a method for processing an internal network outgoing call in a private WCDMA network using a second embodiment of the present invention.

7 is a flowchart illustrating a processing method for an internal network incoming signal of a private WCDMA network using a second embodiment of the present invention.

8 is a data flow diagram showing a control plane connection relationship of a WCDMA network using a second embodiment of the present invention.

9 is a data flow diagram showing an IuCS user plane connection relationship in a WCDMA network using a second embodiment of the present invention.

FIG. 10 is a data flow diagram illustrating an IuPS user plane connection relationship in a WCDMA network using a second embodiment of the present invention. FIG.

Description of the Related Art [0002]

100: private RNC 110: ATM switch

120: wireless channel processing module 130: wireless traffic processing module

140: ATM switch control module 150: E1 / T1 interface

160: call control unit 170: SS7 processing unit

200: IMCR 220: signaling routing module

230: subscriber authentication module 240: data routing module

300: private MSC 320: data processing module

330: vocoder 340: premises call control module

400: private exchange

The present invention relates to a private wireless service system using WCDMA and a control method thereof.

As the electronic and wireless communication technologies have made rapid progress, various wireless communication services using wireless networks have been provided. The most basic wireless communication service is a wireless voice call service that provides a voice call to a mobile communication terminal user wirelessly. It is capable of providing a voice service to a user regardless of time and place. In addition, while providing a text message service to complement the voice call service, a wireless Internet service has recently emerged to provide an Internet communication service to a user of a mobile communication terminal through a wireless communication network. As a result of the development of the mobile communication technology, the services provided by the mobile communication system are developing not only voice services but also multimedia communication services that transmit circuit-based data and packet-based data.

The evolution of the wireless network that has been developed so far is as follows. First, a network called a first generation wireless communication network is an analog cellular system. Currently, the wireless networks generally used for voice calls are GSM, CDMAone (IS-95), US-TDMA (IS-136), PDC, etc. Such wireless networks may be classified as second generation wireless communication networks. . First and second generation wireless communication networks have been developed mainly for transmitting and receiving voice communication data in a wireless environment.

The third generation wireless communication network has focused on the transmission of multimedia data, which has features such as high-definition image service and fast data rate. One such third generation wireless communication network is WCDMA.

Currently, WCDMA is the third generation mobile communication system adopted by most countries, and many organizations such as Korea, Europe, Japan, USA, and China have formed 3GPP (3'rd Generation Project Group) to develop technical specifications. There is a situation.

This willingness to develop third-generation wireless networks began at the 1992 conference of the World Administrative Radio Conference (WARC) of the International Telecommunications Union (ITU), which ITU-2000 calls the International Mobile Telephony. 2000) and defines several air interfaces based on CDMA and TDMA.

WCDMA refers to an asynchronous service among the IMT-2000 services defined above. The wireless access method for communication between the base station and the mobile communication terminal uses the CDMA method, but the mobile communication network technology is based on the GSM network technology. The WCDMA scheme has an advantage that it is not necessary to use a global positioning system (GPS) for synchronizing the entire base station. In addition, the AMR (Adaptive Multi Rate Vocoder), which has a transmission rate of 4.75 Kbps to 12.2 Kbps, is adopted for voice coding. In addition, the frequency bandwidth is widened to 5MHz and has a data transfer rate of 2Mbps.

In addition, the general wireless network is classified into a public land network (PLMN) and a private mobile network (Private Mobile Network) used by a group or company having a specific purpose. In general, public wireless networks and wireless private networks could not interwork. That is, the mobile communication systems are designed such that only a public mobile communication system or a private mobile communication system is possible. Recently, however, a network interworking system and a control method thereof capable of simultaneously providing public and private mobile communication network services have been used.

Such a method has been proposed through the application No. 10-2000-0028172 filed on May 24, 2000 (Applicant's name: system and method for public and private mobile communication services). The application is characterized by interworking the public network and private network by installing an interworking system called a public / private communication service device between the BSC and the BTS end. The public and private network interworking method of the above-described method can be applied based on the CDMA network.

Accordingly, the present invention is to solve the problems according to the prior art, and at the same time provide a public network service and a local network service, and furthermore, by placing one private RNC in the national history and by using the IMCR per site An object of the present invention is to provide a WCDMA private radio service system having a configuration in which a private MSC is interworked with the private RNC, and a control method thereof.

According to an aspect of the present invention, a WCDMA network for providing an internal network service includes a plurality of private MSCs that provide an on-premise voice service or an on-premises data service using a private exchange of a site managed by each of them and a plurality of Node-Bs. Stores the information of the subscriber and the Node-B for each site managed by the private MSC, IMCR that performs packet relay between the plurality of private MSC and private RNC, and whether the message received from the UE is for the network service And if the message is for a local network service, includes a private RNC for transmitting to a private MSC of a site to which the UE belongs via IMCR for processing.

During the originating process, if the message received from the UE is a call setup message, the private RNC determines whether the message is for a local network service using a presence of a predetermined prefix.

The private RNC stores the ID of the called terminal in the premises incoming call database when processing the incoming call, and when receiving a paging response message from a predetermined terminal, it is determined whether the ID of the responding terminal exists in the premises incoming call database. By judging, it is characterized by determining whether the incoming call is a premises call.

In addition, when the private RNC receives a message from the UE, the private RNC transmits the ID of the UE and the ID of the Node-B where the UE is located to the IMCR, and the IMCR performs authentication of the UE by using the stored subscriber information. It is characterized by performing. In this case, when it is determined that the UE cannot use the internal network service as a result of performing the authentication of the IMCR, the private RNC may deliver a message received from the UE to the MSC for processing the public network call.

The ICMR and each site-specific MSC may be connected using an ATM Optic line.

According to another aspect of the present invention, there is provided a method of processing a local network call using a WCDMA network. The originating terminal establishes a radio link with a core network through a private RNC, and the private RNC uses a call establishment request message received from the originating terminal. Determining whether the originating terminal requests the local area network service, the private RNC relaying the call establishment request message to a private MSC of the site to which the originating terminal belongs via IMCR, and the private MSC is a private exchange. And processing the call establishment request message in association with Node-B managed by the node.

The step of determining whether the private RNC requests the internal network service may include determining whether the originating terminal requests the internal network service by using a presence of a predetermined prefix in a call setup request message received from the originating terminal when the originating call is processed. do.

On the other hand, in the method for processing the internal call, the private RNC receives a premise signal including the cell ID of the Node-B to which the called terminal belongs from the private MSC in connection with the incoming call process, and the private RNC acquires the ID of the called terminal. The method may further include storing the incoming call database. In this case, the pRNC pages the Node-B where the called terminal is located, and the called terminal transmits a paging response message to the pRNC, and the private RNC sends an ID of the called terminal to the ID of the called terminal included in the paging response message. By determining whether the message exists in the database, it is determined whether the paging response message is a message for the local network service.

When the paging response message is a message for the local network service, the private RNC sets up a code between the calling terminal and the called terminal, and the private RNC sets up a calling code between the calling terminal and the called terminal and then wirelessly links with the core network. Will be released.

In addition, the internal call processing method, if the private RNC determines that the call setup request message received from the terminal is a message for the internal network service, transmitting the ID of the terminal and the ID of the Node-B where the terminal is located to the IMCR; And the IMCR may further include authenticating the terminal using the stored subscriber information, the ID of the terminal, and the ID of the Node-B in which the terminal is located, and returning the result to the private RNC.

In this case, when authentication of the terminal fails, the private RNC transmits a call setup request message received from the terminal to the MSC and processes it as a public network call.

According to another aspect of the present invention, a private RNC for providing an internal network service may include an E1 / T1 interface for interworking with a Node-B serving as a base station, and a message received through the E1 / T1 interface. A call control module for determining whether the message is a message for receiving the message and selectively routing the IMCR or the core network according to the determination result, a first optical interface for interworking with an IMCR storing subscriber information for each site, and interworking with the core network. It may include a second optical interface.

In this case, the call control module may determine whether the call is an internal network call by using whether a predetermined prefix exists in a call setup request message of the calling terminal, and when the call is an internal network call, through the first optical interface. The call setup message is routed to the IMCR, and the call is routed to the core network through the second optical interface when the call is a public network call.

In addition, the private RNC may further include a premises incoming call database for managing a terminating terminal ID of the premises network service. Using this, the call control module may check whether the ID of the called terminal included in the response message transmitted from the called terminal exists in the premises incoming call database and determine whether the response message is a message for the premises network service.

According to another aspect of the present invention, IMCR stores a signal routing module for routing a call establishment related message received from a private RNC to one of a plurality of private MSCs existing for each site, and stores subscriber information for each site. It may include a subscriber authentication module for performing the user authentication of the terminal requested from the outside using, and a data routing module for performing the routing of voice packets or data packets.

In this case, the signal routing module may be configured to route the call setup related message to the corresponding private MSC using a private MSC address managing a site to which the originating terminal included in the call setup related message belongs.

In addition, the subscriber authentication module receives the ID of the terminal and the ID of the Node-B to which the terminal belongs from the private RNC, and checks whether there is a subscriber having the ID of the terminal among the subscribers of the site managing the Node-B. .

Hereinafter, a private wireless service system using WCDMA and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a WCDMA network for providing a private wireless network service according to a first embodiment of the present invention.

As shown in FIG. 1, a private WCDMA network 10 is connected to a core network (CN) 20 and a radio access network (RAN) 30. Hereinafter, the subcomponents of each network will be described in sequence.

First, the private WCDMA network 10 includes a private global area network (pGAN), multiple private radio network controllers (pRNCs) 12, and a private automatic branch eXcahnge (PABX) (17). , a pURM 18, a private public data network (pPDN) 16, a web switching module (uWSM) 15, a plurality of Node Bs 13, and the like.

First, the private GAN 11 is located at the top layer of the private wireless network 10 using WCDMA. The meaning of the highest layer may be interpreted as that the private WCDMA network 10 is connected to the heterogeneous network through the private GAN 11. The private GAN 11 may operate in conjunction with the WTAN 34 to control handoff with the RAN 30. In this case, the private GAN 11 may interwork with a third party ATM switch for interworking with a third party WCDMA network. In addition, the private GAN 11 is connected to the MSC 21 and the SGSN 22 to control the interworking between the PSTN network or the IP network and the private WCDMA network 10. In addition, the private GAN 11 can interoperate with up to 32 private RNCs 12 and 128 Node Bs 13 in the private WCDMA network 10.

As such, the private GAN 11 must operate to allow the neighboring network to recognize the private GAN 11 as a kind of RNC in order to interwork with the heterogeneous network. In addition, the private GAN 11 must perform a function of routing a message to a plurality of private RNCs 12 in order to establish a private WCDMA network. For example, when the private GAN 11 receives a paging message from the core network 20, the private GAN 11 refers to the ID and routing table of Node B included in the paging message to the corresponding private RNC 12. Route the message. If Node B included in the paging message is connected to private RNC 11, the private GAN routes the paging message to private 11 RNC. On the other hand, when transmitting data from the private RNC to the core network, it is preferable to assign the RNC number to 15. Since 15 is the last RNC number, it can operate regardless of the number of private RNCs, and it is not necessarily assigned to 15.

The private RNC 12 plays a pivotal role in configuring a private wireless system for each site. In this case, the site means a predetermined area in the private network area that is managed by the site.

The private RNC 12 may be connected with components such as a private exchange 17, a pPDN 16, a private GAN 11, etc. to provide a service to a UE 14 existing at a site managed by the private RNC 12. Here, the connection between the private exchanges 17 is for providing a voice call or public wired network service to the UE 14. In addition, the private RNC 12 may be connected to the IP network via the pPDN 16 to provide an intranet service or a data service to the UE 14 existing in the site. Of course, the private RNC 12 may be connected to the RAN 30 and the core network 20 via the private GAN 14, and may provide a service through another network to the UE 14 through such a connection. Will be.

In addition, the private RNC 12 checks the call setup message transmitted from the UE 14 and determines whether to route the outgoing signal to the public network or to the private exchange. The call setup message here is a message of a different concept from the RRC setup message in which the UE 14 requests radio channel allocation with the public network. The call setup message includes a prefix such as "#", and it may be determined whether the outgoing signal is a public network call or a premises call using the presence or absence of the prefix.

Node-B 13 is a device that performs the role of a WCDMA terminal, that is, a base station communicating with the UE (14). Specifically, the Node B 13 performs a radio access termination function with the UE 14 and performs a function of transmitting and receiving voice, video, and data traffic in a WCDMA manner through a transmission / reception antenna. In general, Node B 13 includes a base station interconnection subsystem (BIS) (not shown), a base band service system (BBS) (not shown), and an RF frequency system (Radio Frequency Subsystem) ( Not shown). The Node B 13 may be connected to the Private RNC 12 through the E1 line, and one Private RNC 12 may be connected to the Node B 13 by the number of E1 lines theoretically included.

The pPDN 16 performs operations similar to those of the SGSN 22 and the GGSN 23 in the public network. That is, the pPDN 16 corresponds to a component for relaying an IP network with the private RNC 12, and is a component required for the WCDMA terminal 14 to receive data service through the IP network.

The pURM 18 is responsible for the operation, maintenance, and configuration management of the private GAN 11 and lower network elements. The uWSM 15 is in charge of operational maintenance and configuration management of the private RNC 12 and the Node B 13. The pSMSC 15 corresponds to a component that provides an on-premises short service. In FIG. 1, an example in which the uWSM 15 and the pSMSC 15 are configured as a single module is illustrated, and these may be configured independently.

Hereinafter, the Radio Access Network (RAN) 30 and its subcomponents will be described.

RAN (Radio Access Network) 30 is a radio access network that accommodates the radio access standard by the 3GPP, and receives a radio link connection from the general WCDMA terminal 34 to establish a radio link, the user of the general WCDMA terminal 34 The information is received and delivered to the core network 20. In addition, the RAN 30 receives the authentication information for the service request of the general WCDMA terminal 34 from the core network 20, and the radio bearer assigned to the general WCDMA terminal 34 according to the user class included in the authentication information. Perform Setup (Radio Bearer Setup). To this end, the RAN 30 includes a Node B 33 serving as a base station transmitter and a plurality of RNCs 32 serving as a base station controller.

The RNC 32 is responsible for functions such as wired / wireless channel management, protocol matching of a general WCDMA terminal, protocol matching of a base station, protocol matching with a core network, soft handoff processing, and GPRS connection. Since the role of the Node B 33 is not significantly different from that of the Node B 13 in the private WCDMA network 10, a detailed description thereof will be omitted.

Hereinafter, the functions of the core network 20 and its subcomponents will be described. As shown in FIG. 1, the core network 20 includes a Mobile Switching Center (MSC) 21, a Home Location Register (HLR) 24, a Serving GPRS Support Node (SGSN) 22, and a Gateway GPRS Support Node (GGSN). (23) and the like. The core network 20 may further include an authentication device such as an AAA server (Authentication, Authorization, Accounting Server) (not shown) and an additional service device.

The MSC 21 may be defined as a device that performs a switching function in a wireless communication network. In the present invention, the WCDMA terminal 14 is connected to various additional equipment (SMS (not shown), VMS (not shown), etc.) in the network to provide an additional service, or to connect to another network such as a PSTN network to provide a service. Play a role. The MSC 21 may be understood as a device that performs a radio switching function and a wired switching function in conjunction with the RAN 30, the PSTN, or the like.

The HLR 24 is a database that stores information of public mobile communication subscribers and private network subscribers, and preferably includes a configuration capable of real-time database processing with error diagnosis. The HLR 24 registers / releases and updates subscriber information of public mobile subscribers and private network subscribers. Here, the representative subscriber information refers to location information, roaming information, etc. of the current terminal. In addition, whether or not the local network service for the so-called "one phone service (one phone service)", the information of the Node B (13) to which the UE 14 belongs, local network usage status information, local telephone number and unique number of the wireless terminal, etc. May be included.

SGSN 22 is also referred to as a packet switched support node, and corresponds to a node that is responsible for forwarding data packets to and from mobile stations within a service area, and includes packet routing and transmission, mobility management, logical link management, authentication, and charging. Has the function. In addition, the SGSN 22 may include a location register that stores location information (cell, visitor location register, etc.), user profile (international mobile station identification number: IMSI), etc., of a GPRS user registered with the SGSN 22.

The GGSN 23 is a node in charge of the connection function between the GPRS backbone network and the external packet data network. Converts the GPRS packet from the SGSN 22 into an appropriate Packet Data Protocol (PDP) format and transmits it, and converts the PDP address of the incoming packet data into the global mobile communication system (GSM) address of the receiver. Have. It is also possible to store the current user's address and user profile in the location register of SGSN 22 and to perform authentication and charging functions.

However, the embodiment of FIG. 1 described above has a disadvantage in that a private RNC 12 and a Node-B 13 must be included for each site. Since there is a need to purchase a private RNC 12 for each site, there is a problem in that it takes a lot of money to build a private network. In addition, in the embodiment of Fig. 1, an IP connection is made between the private RNC 12 and the core network. However, IP access has a problem in soft handover due to a delay problem compared to ATM access, which degrades quality and stability. In addition, since the private RNC is located at the site, there is a problem that it is not easy to centrally manage the private RNC. Hereinafter, a second embodiment for solving such a problem will be described.

2 is a block diagram illustrating a WCDMA network for providing a private wireless network service using one private RNC according to a second embodiment of the present invention.

The private WCDMA network of the second embodiment is composed of a private RNC 100, an IMCR 200, an ICRM 201, and a plurality of site areas. Each site may include a private MSC 300, a private exchange 400, a uWSM 401, a plurality of nodes 402, a wired terminal (Phone) 404, and the like.

The private RNC 100 basically performs a function similar to the RNC of the existing WCDMA public wireless network. That is, it is managed by URM of WCDMA public wireless network, provides Iub connection with Node-B 402, which is a lower base station, and IuCS / IuPS connection with upper core network, and performs RRC connection with UE 403. It also plays a role.

As in the first embodiment, the private RNC 100 performs the function of branching the premises / public network call. That is, when the wireless terminal makes an outgoing call, it determines whether it is a public network call or an internal call by analyzing the calling number, and if it is a public network call, it interworks with the core network 20. Interlock.

However, the private RNC 100 is different from the first embodiment in that it is a device located in the national history. From the standpoint of a private WCDMA network, it is a device that many sites use as a common resource concept.

The IMCR 200 is located in a national company, and performs a packet relay between a private RNC 100 located in a national company and a plurality of private MSCs 300 located in a site. Since the private RNC 100 can interwork with only one MSC as in the conventional WCDMA system, it is not possible to directly interwork with a plurality of private MSCs 300 that exist for each site. Accordingly, the IMCR 200 performs a routing role in the middle so that the private RNC 100 can interoperate with a plurality of private MSCs 300.

In addition, the IMCR 200 obtains and stores site-specific subscriber information from a plurality of private MSCs 300. This corresponds to information for distinguishing between an internal call and a public network call in the private RNC 100 when an internal wireless subscriber tries to make a call. In other words, the IMCR 200 eventually performs a function similar to a private HLR. At this time, the subscriber information in the premises is managed separately for each site, and each site information is logically mapped to the cell ID of Node-B providing wireless matching of the corresponding site.

ICRM 201 is located in the national history, and corresponds to the components in charge of the operation, maintenance, configuration management of the IMCR (200) and private MSC (300).

The private MSC 300 is a device located for each site, and provides an in-house voice service and an in-house data service in association with the private exchange 400 located for each site. Private MSC 300 provides IuCS and IuPS control plane connections with private RNC 100 via IMCR 200 for in-house voice and data call control, and is connected to a private exchange 400 connected to the private exchange 400. Related messages can be relayed. In addition, it has a Vocoder function that supports IuCS user plane connection with private RNC 100 and codec processing between AMR / PCM for processing on-premises voice traffic. Finally, it has a PDP function that provides IuPS user plane connection and PPP connection of the wireless terminal with private RNC 100 for processing on-premises data traffic.

In this case, the vocoder of the private MSC 300 is connected to the private exchange 400 and the E1 line to transmit voice voice in the premises, and the data processing module 320 of the private MSC 300 is connected to the premises IP network using Ethernet. To relay data packets between the UE 403 and the intranet of the premises.

The uWSM 401 is located at a site and provides a user interface for the administrator of each site to enter premises subscriber information. The subscriber information input from the uWSM 401 is reflected in the IMCR 200 to allow the IMCR 200 to perform the role of the on-premises HLR. In addition, it can also perform SMSC function for the short message service in the premises.

3 is a block diagram showing an internal configuration of a private RNC, an IMCR, and a private MSC according to a second embodiment of the present invention.

The private RNC 100 includes an ATM switch 110, a wireless channel processing module 120, a wireless traffic processing module 130, an ATM switch control module 140, an E1 / T1 interface 150, a call control module 160. , SS7 processing module 170, optical interface 180, ATM cell conversion module 190, and the like.

The ATM switch 110 serves to switch ATM cells using an ATM switch fabric. The radio channel processing module 120 plays a role of processing a radio common channel of the base station, and the radio traffic processing module 130 is responsible for radio traffic processing with the UE 403. The ATM switch control module 140 is responsible for controlling the ATM switch 110. In addition, the E1 / T1 interface 150 means an E1 / T1 link interface between the private RNC 100 and the Node-B.

The call control module 160 performs overall call control and determines whether the call is an internal call or a public network call when a call establishment request is received from the terminal. The SS7 processing module 170 corresponds to a module for processing the SS7 protocol for integrally managing call information in voice communication and connection information in data communication.

The private RNC 100 may interwork with the MSC 21, SGSN 22, GAN or IMCR 200 via the optical interface 180. The private RNC 100 is connected to the MSC 21, SGSN 22, and IMCR 200 using ATM Optic. The ATM cell conversion module 170 performs a role of Mux / Demux the ATM cell.

Meanwhile, the IMCR 200 includes an ATM switch 210, a signaling routing module 220, a subscriber authentication module 230, a data routing module 240, an optical interface 250, an ATM cell conversion module 260, and the like. Doing.

The signaling routing module 220 is responsible for routing outgoing calls received from the private RNC 100. In a typical WCDMA network, the RNC communicates with one MSC. Therefore, the private RNC 100 according to the present embodiment also transmits and receives a message only with the IMCR 200, not the private MSC 300 for each site. The signaling routing module 220 of the IMCR 200 receives the call setup message from the private RNC 100 and transfers the call setup message to the private MSC 300 to which the calling or terminating terminal belongs among the plurality of private MSCs 300. It is.

The subscriber authentication module 230 authenticates the calling terminal requested by the private RNC 100. To this end, the subscriber authentication module 230 may include a subscriber information database (not shown) that manages information of subscribers and Node-Bs belonging to respective sites. The subscriber authentication module 230 may perform user authentication by matching the ID of the originating terminal queried by the private RNC 100 with the ID of the Node-B to which the originating terminal belongs to the subscriber information database. Specifically, the subscriber authentication module 230 retrieves subscriber information of the site according to Node-B. Thereafter, the subscriber authentication module 230 performs user authentication by checking whether a subscriber having an ID of the calling terminal exists.

The data routing module 240 corresponds to a module for routing data in the IuPS user plane. For example, the data routing module 240 is responsible for routing data transmitted from the originating terminal 403 only to the private MSC 300 managing the originating terminal 403.

Finally, the private MSC 300 uses an ATM switch 310, a data processing module 320, a vocoder 330, an internal call control module 340, an optical interface 350, an ATM cell conversion module 360, and the like. It may include.

The functions of the ATM switch 310, the optical interface 350, and the ATM cell conversion module 360 have already been described above, and a detailed description thereof will be omitted.

The data processing module 320 interworks the ATM cell-based data packet transferred from the IMCR 200 to the IP network. The interworking data packet may be delivered to the private exchange 400, the terminal connected to the Ethernet, or any terminal existing in the external network.

Vocoder 330 is responsible for processing the speech signal according to the IuCS user plane. The voice signal received through the ATM Optic network is decoded by the vocoder and transmitted to the private exchange 400 through the PCM E1 line. The private exchange 400 provides the voice signal decoded by the vocoder to the wired terminal 404 or the like.

The premises call control module 340 corresponds to a module for controlling premises calls. That is, the premises call control module 340 is responsible for providing IuCS and IuPS control plane connections with the private RNC 100.

4 is a flowchart illustrating a system initialization method using a second embodiment of the present invention.

The IMCR 200 and the private MSC 300 operate by downloading software through the ICRM 201 which manages the network. After the software download, since the IMCR 200 and the private MSC 300 are both ATM-based systems, it starts to set up the ATM PVC for maintenance management and call control at initial startup (S401).

Here, the ATM PVC for call control is a path for IuCS / IuPS control plane connection between the private RNC 100 and the private MSC 300, and first generating a path between the private RNC 100 and the IMCR 200 (S402). And setting the ATM PVC between the IMCR 200 and the private MSC 300 (S403).

Finally, in order for the private RNC 100 to search the subscriber subscriber database stored in the IMCR 200, the private RNC 100 and the IMCR 200 additionally set an ATM PVC (S404).

5 is a flowchart illustrating a method for processing in-house signaling of a private WCDMA network using a second embodiment of the present invention.

The mobile communication terminal present in the private WCDMA network corresponds to a user equipment (UE) 403.

First, the UE 403 requests the RRC (Radio Resource Control) connection establishment to the private RNC 100 (S501). The RRC connection establishment process may be classified into a process of transmitting and receiving an RRC Connection Request message, an RRC Connection Setup message, and an RRC Connection Setup Complete message by the UE 403 and the private RNC 100 to request connection establishment. In this way, a radio link is established for the UE 403 through an RRC connection establishment process.

Thereafter, the UE 403 transmits the CM Service request message to the private RNC 100 (S502). This is a message requesting service to the core network via the assigned radio link. The CM service request message may include user information of the UE 403 together with the service request. The private RNC 100 transmits an Initial UE message to the core network 20 after receiving the CM Service request message (S503). This procedure corresponds to a procedure used to create an Iu signaling connection with the core network 20 and to deliver an initial NAS PDU to the core network 20. In response to the Initial UE message, the UE 403 and the MSC 21 of the core network 20 set an authentication and encryption mode (S504 and S505).

After the operation is normally performed, the UE 403 transmits a call setup request message to the private RNC 100 (S506). Of course, the call setup request message includes a prefix for distinguishing a public call or a premises call, telephone number information of the called terminal 404, and the like. The information of the called terminal may be an extension telephone number, a landline telephone number or a mobile communication telephone number. However, since this embodiment is an example of describing the internal network service, it is assumed that the telephone number of the called terminal is an extension number.

The private RNC 100 determines whether it is a public network call or an internal call by using the prefix included in the received call establishment request message (S507).

In the conventional CDMA private exchange system, the private exchange system receives the counterpart number including the prefix first, thereby distinguishing the public network and the internal call according to the presence or absence of the promised prefix.

However, according to the 3GPP standard, when a wireless subscriber enters and transmits a counterpart number in WCDMA, the private exchange system receives an RRC setup message according to step S501 before receiving a setup message including the counterpart number. As described above, the RRC Setup message is a message related to subscriber authentication and security related processing. Therefore, the private exchange system cannot interpret the RRC Setup message to determine whether the originating call is a public or internal call. As a result, the private RNC 100 may know the number of the called terminal 404 through a call setup message transmitted after the subscriber authentication and security related processing is performed, and the call setup message may include a specific number such as "#". It analyzes prefix and caller information to classify public call and internal call.

When a call path is established with the extension terminal 404 in the private network, resources between the UE 403 and the core network 20 secured through S502 and S503 correspond to wasted resources. Therefore, the private RNC 100 releases the allocated resource by transmitting an Iu Release Request message requesting resource release to the public network (S508).

6 is a flowchart illustrating a method for processing an internal network outgoing call in a private WCDMA network using a second embodiment of the present invention.

The subscriber in the premises inputs the called terminal number including the specific prefix such as "#" to the calling terminal, and the calling terminal requests the originating terminal to the private RNC 100 through the Node-B 402 (S601).

The private RNC 100 analyzes the call setup message transmitted by the calling terminal and checks whether a prefix exists (S602). Of course, the private RNC 100 determines whether a call desired by the subscriber in the premises is a premises network call or a public network call using the presence of a prefix (S603).

If a specific prefix does not exist in the call setup message transmitted by the calling terminal, the private RNC 100 detects that the call is a public network call and transmits the call setup message to the MSC 21 located in the core network 20. Process (S610). Since the public network call processing step according to step S610 is the same as the existing method, a description thereof will be omitted.

On the other hand, when the call setup message sent by the calling terminal in step S602, the prefix exists in the destination number, the private RNC 100 detects that the call requested by the user is a local network call. Even when the local area network call service is requested from the calling terminal, the private RNC 100 performs an authentication procedure for confirming whether the user of the calling terminal is a legitimate user.

To this end, the private RNC 100 requests authentication of the calling user to the IMCR 200 having the on-premises subscriber database. At this time, the private RNC 100 transmits the location information of the originating terminal to the originating call and the ID information of the originating terminal to the IMCR 200 (S604). In this case, the location information transmitting the originating call will be the cell ID information of the Node-B to which the originating terminal belongs.

The IMCR 200 checks whether the ID of the calling terminal is registered in the subscriber information of the site corresponding to the Node-B cell ID received from the private RNC 100 (S605). Through this process it is to perform the user authentication of the calling terminal (S606).

If the ID of the calling terminal is registered in the IMCR 200, the IMCR 200 notifies the private RNC 100 of the successful authentication result and the information of the private MSC 300 managing the site to which the calling terminal belongs (S607). .

The private RNC 100 transmits to the private MSC 300 via the IMCR 200, and the private MSC 300 transmits the premises network originating call to the private exchange 400 existing for each site (S608). The private exchange 400 transmits the internal network outgoing call to the called terminal (S609).

If the authentication fails because the ID of the calling terminal 403 is not registered in the IMCR 200 in step S606, the IMCR 200 notifies the private RNC 100 of the authentication failure result, and of course, the private belonging to the calling terminal. The MSC 300 information is not passed to the private RNC 100. Upon receiving the authentication failure result, the private RNC 100 performs public network call processing through the MSC 21 (S610).

7 is a flowchart illustrating a processing method for an internal network incoming signal of a private WCDMA network using a second embodiment of the present invention.

The private MSC 300 receives an outgoing call request from the private RNC 100 as described with reference to FIG. 6 (S701). In this case, the private MSC 300 transmits the premises incoming call including the cell ID information of the Node-B where the called terminal is located to the private RNC 100 (S702). This is to allow the private RNC 100 to page only to the Node-B 402 located at the site.

On the other hand, unlike the outgoing call, the incoming call transfer process has a feature that a specific prefix cannot be included in a call setup response message transmitted by the called terminal. Therefore, the private RNC 100 stores the ID of the called terminal included in the premises incoming call in the premises incoming call database (S703).

Thereafter, the private RNC 100 transfers the paging requesting the response of the called terminal only to the corresponding Node-B received from the private MSC 300 (S704). If the called terminal exists in the corresponding Node-B area, the called terminal responds to paging to the private RNC 100 (S705).

The private RNC 100 receives the paging response message from the called terminal, and checks whether the ID of the called terminal exists in the premises incoming call database generated in step S703 (S706). If the ID of the called terminal does not exist in the premises incoming call database, the private RNC 100 determines that the incoming call is for the public network call and transmits a call setup response message to the core network 20 (S710).

If the ID of the called terminal exists in the premises call terminator database, the private RNC 100 determines that the paging response message is a message for the premises network service. In this case, the private RNC 100 transmits a call setup response message to the Node-B to which the originating terminal belongs (S707). The calling terminal receives the call setup response message through the Node-B (S708), thereby completing the call setup between the calling terminal and the called terminal (S709).

8 is a data flow diagram illustrating a control plane connection relationship of a WCDMA network using a second embodiment of the present invention.

As shown in FIG. 8, the dashed-dotted line indicates a signaling path for call setup, and the dashed-dotted line indicates a path for the subscriber information query of the calling terminal.

There are two types of signaling paths for call setup. One signaling pass is a signaling pass between the private RNC 100 and the IMCR 200, and the other is a signaling pass between the IMCR 200 and the private MSC 300. These signaling paths have ATM PVC connections and comply with AAL Type 5 specifications. In this case, the PVC means that the virtual circuit is always fixed between two users, and means a method in which a separate connection request / release process is not necessary.

Benefits The subscriber information query paths indicated by the dashed lines are likewise ATM ATM connections. Preferably, the subscriber information query path also has a standard of AAL Type 5.

9 is a data flow diagram illustrating an IuCS user plane connection relationship in a WCDMA network using a second embodiment of the present invention.

Such an IuCS user plane corresponds to a path for transmitting and receiving voice data in the premises. The ATM AAL Type 2 Switched Virtual Circuit (SVC) is set from the private RNC 100 to the vocoder 330 of the private MSC 300 in the IuCS user plane path. In this case, SVC refers to a method in which a virtual circuit is established at a transmitting / receiving end when a virtual circuit is requested to the network and an acknowledgment is received from the other party before data transmission. That is, the connection between the private RNC 100 and the private MSC 300 is not a semi-permanent line, but is established whenever a request from a user occurs.

In order to configure ATM SVC, vcap / vci / cid information of a newly generated AAL type 2 SVC is determined by ALCAP signal processing between the private RNC 100, the IMCR 200, and the private MSC 300.

10 is a data flow diagram illustrating an IuPS user plane connection relationship in a WCDMA network using a second embodiment of the present invention.

Unlike in FIG. 9, when processing the premises data packet, an IuPS user plane path is used. The IuPS user plane path is set to ATM AAL Type 5 PVC, so unlike IuCS, there is no ALCAP signal processing.

The IuPS user plane path must set up AAL5 PVC from the private RNC 100 to the data processing module 320 of the private MSC 300. In this case, if the AAL5 PVC connection from the private RNC (100) to a plurality of private MSC (300) managing each site, there will be a lot of ATM paths to be linked with the private RNC (100). Since a general RNC is originally connected with one MSC, a configuration including multiple ATM paths is not preferable.

Thus, in this embodiment, the private RNC 100 generates only one AAL5 PVC with the IMCR 200 for the on-premises IuPS user plane, and from the IMCR 200 to the private MSC 300 of each site, multiple AAL5 PVCs. It can be seen that the IMCR 200 performs the function of routing the packet data in the middle by generating the.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As described above, according to the private WCDMA network and the premises network service method using the same, the private RNC is located in the national office, and the private MSC capable of interworking with the private RNC is located per site, thereby using only one private RNC. As a result, WCDMA public wireless network service and on-premises wireless network service can be simultaneously provided to WCDMA wireless subscribers existing at multiple sites. With this configuration, WCDMA public wireless network service and on-premises wireless network service can be provided even when there are many sites in one Node-B area and when multiple sites that are geographically separated are managed as one site. It becomes possible.

Claims (21)

In the WCDMA network for providing a network service, A plurality of private MSCs that provide on-premises voice services or on-premises data services, each using a private exchange and a plurality of Node-Bs of a site managed by the site; An IMCR for storing site-specific subscriber and Node-B information managed by the private MSCs, and performing packet relaying between the plurality of private MSCs and private RNCs; And It is determined whether the message received from the UE is for the network service, and if the message is for the network service includes a private RNC for transmitting to the private MSC of the site to which the UE belongs via IMCR for processing; WCDMA Network. The method of claim 1, The private RNC, If the message received from the UE is a call setup message, determining whether the message is for a local area network service using a presence of a predetermined prefix. The method of claim 1, The private RNC, When the incoming call is processed, the ID of the called terminal is stored in the premises incoming call database, and when a paging response message is received from a predetermined terminal, it is determined whether the ID of the responding terminal exists in the premises incoming call database. WCDMA network, characterized in that determining whether the incoming call is a premise. The method of claim 1, When the private RNC receives a message from the UE, the private RNC transmits the ID of the UE and the ID of the Node-B where the UE is located to the IMCR, and the IMCR performs authentication of the UE by using the stored subscriber information. WCDMA network, characterized in that. 5. The method of claim 4, And if it is determined that the UE cannot use the local area network service as a result of the authentication of the IMCR, the private RNC transfers the message received from the UE to the MSC for processing the public network call. The method of claim 1, The ICMR and private MSC for each site, WCDMA network characterized in that the connection using the ATM Optic line. In the premises network call processing method using a WCDMA network, The originating terminal establishes a radio link with the core network through a private RNC; Determining, by the private RNC, whether the originating terminal requests the internal network service using the call establishment request message received from the originating terminal; Relaying, by the private RNC, the call establishment request message to a private MSC of a site to which the originating terminal belongs via an IMCR; And the private MSC processing the call establishment request message in association with a private exchange and a Node-B managed by the private MSC. The method of claim 7, wherein Determining whether or not the private network RNC service request, And determining whether the originating terminal requests the internal network service by using a presence or absence of a predetermined prefix in the call establishment request message received from the originating terminal. The method of claim 7, wherein Receiving, by the private RNC, a premise call including a cell ID of a Node-B to which a called terminal belongs from a private MSC; The private RNC further comprises the step of storing the ID of the called terminal in the premises incoming call database. 10. The method of claim 9, PRNC paging to Node-B where the called terminal is located, and the called terminal sends a paging response message to pRNC; Wow Determining, by the private RNC, whether the paging response message is a message for an internal network service by determining whether an ID of a called terminal included in a paging response message exists in the premises incoming call database; If the paging response message is a message for the local network service, the private RNC further comprises the step of setting the extension between the calling terminal and the called terminal. The method of claim 10, The private RNC further comprises the step of releasing a radio link with the core network after the call setup between the calling terminal and the called terminal. The method of claim 7, wherein When the private RNC determines that the call establishment request message received from the terminal is a message for the local area network service, transmitting the ID of the terminal and the ID of the Node-B where the terminal is located to the IMCR; The IMCR further comprises the step of authenticating the terminal using the stored subscriber information, the ID of the terminal and the ID of the Node-B in which the terminal is located, and returning the result to the private RNC. The method of claim 12, If the authentication of the terminal fails, the private RNC comprises the step of transmitting a call setup request message received from the terminal to the MSC and processing as a public network call. In a private RNC for providing a network service, An E1 / T1 interface for interworking with a Node-B serving as a base station; A call control module for determining whether a message received through the E1 / T1 interface is a message for an internal network service and selectively routing to an IMCR or a core network according to the determination result; A first optical interface for interworking with an IMCR storing site-specific subscriber information; And And a second optical interface for interworking with the core network. The method of claim 14, The call control module, And determining whether the call is an internal network call by using whether a predetermined prefix exists in a call establishment request message of an originating terminal. 16. The method of claim 15, The call control module, And route the call setup message to an IMCR via the first optical interface if the call is a private network call and route to a core network through the second optical interface if the call is a public network call. The method of claim 14, Private RNC further comprises a premises incoming call database for managing the destination terminal ID of the premises network service. 18. The method of claim 17, The call control module, A private RNC for determining whether the response message is a message for an internal network service using whether the ID of the called terminal included in the paging response message transmitted from the called terminal exists in the premises incoming call database. In IMCR for providing a network call service, A signal routing module for routing a call establishment related message received from a private RNC to one of a plurality of private MSCs present in each site; A subscriber authentication module which stores subscriber information for each site and performs user authentication of a terminal requested from the outside using the subscriber information for each site; And IMCR comprising a data routing module for routing voice packets or data packets. 20. The method of claim 19, The signal routing module, IMCR characterized in that the call establishment-related message is routed to the corresponding private MSC by using a private MSC address managing a site to which the calling terminal included in the call establishment-related message belongs. 20. The method of claim 19, The subscriber authentication module, Receiving an ID of a terminal and an ID of a Node-B to which the terminal belongs from the private RNC, and checking whether a subscriber having an ID of the terminal exists among subscribers of a site managing the Node-B.

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