KR20040019680A - Public/private wireless network system for providing network management information - Google Patents

Abstract

PURPOSE: A public/private mobile communication network system supplying network management information is provided to collect network management information in a pBSM(private Base Station Management) unit for managing a base station and a base station pBSC(private BSC), and to transmit the collected information to a public NMS(Network Management System), thereby efficiently managing an entire mobile communication network. CONSTITUTION: An NMS(250) supplies a port number to an NMC(Network Management Connection) unit(310)(402). The NMC(310) connects with the NMS(250)(404). If the NMC(310) transmits a message for confirming port information to the NMS(250)(406), the NMS(250) responds to the message(408). If the NMS(250) requests to start transmitting a message(410), the NMC(310) transmits a message transmission confirmation to the NMS(250)(412). The NMC(310) monitors whether network management information is collected(414,416). If so, the NMC(310) transmits the collected network management information to the NMS(250). If the NMS(250) requests to stop transmitting the message(418) and closes a port connection(420), the NMC(310) transmits a message transmission stop confirmation(422).

Description

Public / private wireless network system and method for providing network management information {PUBLIC / PRIVATE WIRELESS NETWORK SYSTEM FOR PROVIDING NETWORK MANAGEMENT INFORMATION}

The present invention relates to a mobile communication system, and more particularly, to an apparatus and method for collecting and providing network management information in a public / private wireless network system.

In general, a mobile communication network may be classified into a public wireless network and a private (or indoor) wireless network, and the two networks may not be interoperable. That is, the wireless communication systems are designed or implemented to be only public wireless network services or only private wireless network services, so that mobile subscribers registered in each network can receive services only from their registered networks. Therefore, a mobile subscriber registered in a public wireless network cannot receive private wireless network service, and likewise, a mobile subscriber registered in a private wireless network cannot receive public wireless network service. Accordingly, it has been desirable for a mobile terminal subscriber to be provided with public and private wireless network services in one mobile terminal.

Recently, however, a lot of researches have been conducted to allow subscribers of mobile terminals registered in public mobile communication networks to receive private mobile communication services. For example, Korean Patent Application No. 2000-028095 filed by the present applicant, filed May 24, 2000, discloses a system for registering a public network mobile communication terminal with a private wireless network to receive private network services in the premises.

1 is a network diagram illustrating the concept of a public and premises mobile communication service to which the present invention is applied. Referring to FIG. 1, there is a public / private shared cell area 14, which is a public and private shared communication service area, for providing both public and private mobile communication services, and has a public / private communication service device 12. . The public / private shared cell area 14 is preferably defined to benefit a particular group of communications services. For example, if a particular company is using a building, the area to which the building belongs may be designated as the public / private shared cell area 14. Determining the public / private shared cell area 14 is preferably done in consultation with the public telecommunications service provider in advance. This is for the private base station (private BTS) 8-k in the public / private shared cell area 14 to be recognized as a public base station from the perspective of a public mobile communication system. In the present specification, base stations (BTSs) belonging to a public mobile communication system, that is, BTSs 6-1, 6-k, and 8-1 shown as an example in FIG. 1 and a public / private shared cell area ( In order to distinguish the private base station 8-k in 14), the private base station 8-k is referred to as " pBTS (private BTS). The pBTS 8-k is assigned to the public / private shared cell area 14; Together with the mobile terminal (MS) 24 to which it belongs to perform the functions of configuring a wireless communication path and managing radio resources, and through the public / private communication service device 12 BSC of the public mobile communication system, for example, of FIG. The public / private communication service device 12 is connected to the BSC 4-m, the PSTN / ISDN 16, and the Internet Protocol Network 18 of the public mobile communication system. The public / private communication service device 12 may be configured to provide MSs in which the public mobile communication service and the local mobile communication service are located in the public / private shared cell area 14, for example, as shown in FIG. Perform a mobile communication service to be selectively provided to the MS 24. If the MS 24 is registered in the public / private communication service device 12 to receive the on-premises mobile communication service, the MS 24 In addition to the public mobile communication service, the on-site mobile communication service may be provided, but if the on-premises mobile communication service registration for the MS 24 is not in the public / private communication service device 12, the MS 24 may be provided. The public / private communication service device 12 also performs a wired communication service with the PSTN / ISDN 16 and the IP network 18.

On the other hand, a public mobile communication network is commonly referred to as a public land mobile network (PLMN), and an example configuration of the public mobile communication system is shown in FIG. 1, wherein a plurality of mobile switching centers (MSCs) (2- 1, .., 2-n), a plurality of base station controllers (BSCs) 4-1, .., 4-m, a plurality of base station transceiver subsystems (BTSs) 6 -1, .., 6-k, 8-1, .., 8-k), Mobile Stations (MS) (20,22), and HLR / VLR (Home Location Register / Visitor Location Register) (10). A plurality of BSCs 4-1, ..., 4-m are connected to each of the plurality of MSCs 2-1, ..., 2-n, and a plurality of BSCs 4-1, ..., ... 4-m) A plurality of BTSs 6-1, ..., 6-k, 8-1, ..., 8-k are connected to each other. In particular, pBTS (8-k) is connected as one of a plurality of BTS (8-1, ..., 8-k) connected to the BSC (4-m) of the public mobile communication system according to an embodiment of the present invention . Each of the plurality of MSCs 2-1, .., 2-n may connect a plurality of BSCs (eg, 4-1, .., 4-m) connected to the PSTN / ISDN (Public Switch Telephone Network / Integrated). It controls access with other MSCs in the Services Digital Network) or public telecommunication network. Each of the plurality of BSCs 4-1, ..., 4-m performs radio link control and handoff functions, and each of the plurality of BTSs 6-1, ..., 6-k, 8-1,. .8-k), together with MSs 20, 22, and 24 belonging to its own communication service area, that is, its cell area, perform a function of configuring a wireless communication path and managing radio resources. In the HLR / VLR 10, the HLR performs a subscriber location registration function and a database function for storing subscriber information, and the VLR is in charge of a corresponding MSC among the plurality of MSCs 2-1, .., 2-n. It is a database that temporarily stores information of the MS existing in the cell area. If the MS moves to a cell area managed by another MSC, the information stored in the VLR is deleted. In the present specification, in order to distinguish the public / private shared cell area 14, the communication service area of the BTSs 6-1, .. 6-6-k, 8-1, .. of the public mobile communication system is public. This is called a dedicated cell area. In FIG. 1, as an example, the communication service area of the BTS 8-1 among the BTSs 6-1,..., 6-k, 8-1,... ). Typically, the public dedicated cell area 15 is much wider than the public / private shared cell area 14 that is intended to benefit a particular group of communications services.

2 is a diagram illustrating a public / private wireless network system interworking with a public network.

The public / private wireless network system interworking with the conventional public network includes pBTS (110, 112, 114), pBSC (120), call management device (130). In addition, the public / private wireless network system includes a call management device 130, the call management device 130 controls the pBSC 120 to communicate for public mobile communication services and private mobile communication services Form a path. The call management device 130 is also responsible for processing all maintenance, maintenance, operation and operation information of the mobile communication service function provided by the public / private communication service device 12, for example, faults, alarms, and statistical information. Wireless System Manager (WSM) (not shown). WSM has an operator console attached to it for interfacing with the operator.

As the public and private wireless network services are provided together, the private wireless network is a part of the entire public wireless network, and the management information generated in the private wireless network is managed by the network management system of the public network. (Hereinafter referred to as NMS) 250. In the public wireless network system, the network management information is integrated in the base system management (BSM) that manages the base station and the base station controller and transmitted to the network management center through an agent host that interworks with the network management system. However, in the private wireless network system, there is no method of interworking with the NMS, and it collects and manages network management information by itself and maintains the base station and the base station controller.

That is, in the related art, there is a limitation in collecting and managing network management information of the entire wireless network in the network management center by collecting and managing network management information by itself without interworking with the NMS in the wireless private switching system. That is, network management information (statistics, alarm / failure, status, etc.) generated in the private exchange system needs to be managed separately.

Accordingly, an object of the present invention is to collect network management information from a private base station management device (pBSM) that manages a base station and a base station pBSC, and transmits it to a public network management system, and a public / private wireless network system for the same. In providing.

1 is a network diagram for explaining the concept of public and premises mobile communication service,

2 is a diagram illustrating a public / private wireless network system interworking with a public network;

3 is a diagram illustrating a private wireless network system interworking with a public network according to the present invention;

4 is a diagram illustrating a configuration of a pBSM according to the present invention;

5 is a diagram illustrating a message flow between an NMS and an NMC in accordance with the present invention.

According to an aspect of the present invention, there is provided a method for providing network management information in a mobile communication system including a private base station management apparatus, the method comprising: collecting, by the private base station management apparatus, network management information from the base station controller; Connecting the management apparatus to a network management system of a public network, requesting network management information from the private base station management apparatus by the network management system of the public network, and storing the network management information collected by the private base station management apparatus. Transmitting to a network management system of a public network.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The present invention collects network management information generated in a wireless private exchange system and transmits it to the NMS through an IP network, so that the network management information generated in the wireless private exchange system can be integrated in a network management center that manages the entire wireless network. do.

3 is a diagram illustrating a private wireless network system interworking with a public network according to the present invention.

Referring to FIG. 3, a public / private wireless network system interworking with a public network according to the present invention includes pBTSs 110, 112, and 114, a pBSC 120, and a call management device 130. pBTS (110, 112, 114) and the mobile station (MS) belonging to the private wireless network area to perform the functions of configuring a wireless communication path and manage radio resources, private base station controller (hereinafter referred to as pBSC) ( 120 is connected to a BSC of the public mobile communication system, eg, the illustrated BSC 220 of FIG. 3. The pBSC 220 is connected to the BSC 220 of the public mobile communication system. The pBSC 220 performs a mobile communication service so that a public mobile communication service and a private mobile communication service can be selectively provided to an MS in a private area. In addition, as described above, the public / private wireless network system includes a call management device 130, the call management device 130 controls the pBSC (120) for public mobile communication services and private mobile communication services Form a communication path for The call management device 130 is a WSM that is in charge of processing all maintenance, maintenance, operation and operation information of the mobile communication service function provided by the public / private communication service device 12, for example, faults, alarms, and statistical information. Wireless System Manager (not shown). The public / private wireless network system according to the present invention also includes a pBSM (private base station management) host 300. The pBSM 300 is connected to a network management system (hereinafter referred to as NMS) 250 of a public network through a path shown by a dotted line. The pBSM 300 and the network management system 250 may be connected through a local area network (LAN) or an existing wired network.

4 is a diagram illustrating a configuration of a pBSM according to the present invention. The pBSM 300 is an agent software for transmitting network management information collected from a base station (pBTS) and a base station controller (pBSC) 120 to the pBSM 300 and collected network management information to the NMS 250 (network management connection). A NMC 310 and a software for managing agent software (System Management Agent (SM Agent) (not shown)). In addition, the pBSM 300 includes, for example, a database 320 that stores collected network management information received from the information collection module of the pBSC 120. The types of network management information are statistics (traffic statistics, handoff statistics, channel element statistics, vocoder statistics, link statistics, radio channel quality statistics, processor statistics, alarm statistics, location registration statistics, paging statistics, data statistics, time / Daily statistics, etc.), faults / failures (all faults or faults occurring within pBSC), and states (process state, vocoder state, link state). The NMC 310 monitors the database 32 and transmits network management information collected, for example, statistics, faults / alarms, and status data, to the NMS 250.

5 is a diagram illustrating a message flow between an NMS and an NMC according to the present invention. The message flow of FIG. 5 is started by the NMC software by a command from the console of the pBSM 300, or by the pBSM initiation module.

Referring to FIG. 5, first, the NMS 250 provides a port number for the NMC 310 of the pBSM 300 to access it. Accordingly, NMC 310 connects to NMS 250 in step 404. The NMC 310 then sends a message for port information confirmation to the NMS 250 in step 406, and the NMS 250 responds to the port information confirmation in step 408. This is to open TCP / IP sockets by information type to send network management information such as status, statistics, faults / alarms to NMS. Thereafter, if the NMS 310 requests to initiate message transmission in step 410, the NMC 310 transmits an acknowledgment of message transmission in step 412. Subsequently, the NMC 310 transmits the collected information in steps 414 and 416: monitoring the presence or absence of network management information collected from the base station and the base station controller. Send it through. In addition, the NMS connected to the NMC 310 and the TCP / IP socket transmits a process status check message every T1 time period to check whether there is an abnormality of the processor, and the NMC 310 should respond to this.

If the NMS 250 requests to stop transmitting the message at step 418 and closes the port connection at step 420, the NMC 310 transmits an acknowledgment of stopping message transmission at step 422.

As described above, the present invention can transmit the network management information generated in the private wireless network system to the wireless network management center. In addition, the wireless network management center can efficiently manage the entire wireless network by receiving network management information from the wireless private switching network.

Claims (5)

In the method for providing network management information in a mobile communication system comprising a private base station management apparatus, Collecting network management information from the base station controller by the private base station management apparatus; Connecting the private base station management apparatus to a public network management system; Requesting, by the public network management system, network management information from the private base station management apparatus; And transmitting, by the private base station management apparatus, the collected network management information to a network management system of the public network. The method of claim 1, The network management information is network management information providing method, characterized in that the information on the status, statistics, failure / alarm. The method of claim 1, further comprising: collecting, by the private base station management apparatus, the base station controller to collect network management information. In the public / private wireless network system linked to the public network, A private base station controller for wirelessly connecting a mobile terminal in a private wireless network area to a public mobile communication system through a private base station; A call management device connected to the private base station controller and responsible for processing all maintenance, maintenance, operation, and operation information of a mobile communication service function in the public / private wireless network system; A private base station management device connected to a network management system of a public network and transmitting network management information collected from the private base station controller and the call management device to the network management system of the public network. . 5. The system of claim 4, wherein the private base station management device includes a database for storing collected network management information received from the private base station controller and the call management device.