WO2011079721A1

WO2011079721A1 - Communication method and local management system

Info

Publication number: WO2011079721A1
Application number: PCT/CN2010/079850
Authority: WO
Inventors: 陆文卓; 梅竞晋; 沈敏军
Original assignee: 华为技术有限公司
Priority date: 2009-12-30
Filing date: 2010-12-16
Publication date: 2011-07-07
Also published as: CN101801016A

Abstract

The invention discloses a communication method and a local management system. The method comprises the following steps: when judging that a calling party and a called party are both covered by the local management system, the local management system establishes a communication link between the calling party and the called party to complete the communication between the calling party and the called party, wherein the local management system comprises a base station and accessory equipments which are connected with each other, and the functions of a base station controller and a core network are realized by the base station and accessory equipment together. By the technical scheme of the invention, the local management system can be used as an independent autonomous system to support the communication service in the coverage of a single station under the condition of the interface transmission interruption between the base station and the base station controller, and ensure that the communication service can not be completely paralyzed when the base station is out of contact with the base station controller, thereby guaranteeing the communication in remote areas with poor transmission quality.

Description

Communication method and local management system

This application claims to be filed on Dec. 30, 2009, the Chinese Patent Office, Application No. 200910238861. 2. The priority of the Chinese patent application entitled "A Communication Method and Local Management System", the entire contents of which are incorporated by reference. In this application.

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a communication method and a local management system. Background technique

GSM (Global System for Mobi le Communications), commonly known as "Global Connect", a digital mobile phone network standard developed by Europe, is a second-generation mobile communication technology developed for common use around the world. Using a mobile phone network standard, users can travel around the world with a single mobile phone. The GSM system includes GSM 900: 900MHz, GSM1800: 1800MHz and several frequency bands such as GSM_1900 and 1900MHz.

GSM is a digital mobile telephone system widely used in Europe and other parts of the world. GSM uses time division multiple access technology. GSM digitizes data, compresses the data, and then slaves the channel with the other two user data streams. Sending out, the other two user data streams have their own time slots.

As shown in FIG. 1 , it is a schematic diagram of a GSM network structure in the prior art, including: a user equipment (UE, User Equipment), a base station subsystem (BSS, Base Station Sub-system), and a network subsystem (NSS, Network). SubSustem network). The base station subsystem (BSS) includes a base station (BTS, Base Transceiver Station) and a base station controller (BSC); the network subsystem (NSS) includes a mobile switching center (MSC, Mobi le Switching). Center ) 0MC, Operation Operation & Maintenance Center, Home Location Register (HLR), Visit Location Register (VLR, Vi sitor Location Register), Authentication Center (AUC, Authentication Center) EIR (Device Identification Register) where the mobile switching center is generally integrated with the visitor location register, commonly referred to as MSC/VLR o

The network subsystem NSS can also be connected to an Operation Support Maintenance Subsystem (OSS), which mainly includes: a Network Management Center (LIC), a Data Post-Processing System (DPPS), User Identification Card (PCS, Personal Communications Service), Security Management Center (SEMC).

The MSC/VLR can also be connected to a Public Data Network (PDN), a Public Switched Telephone Network (PSTN), and an Integrated Service Digital Network (ISDN).

Base Station Subsystem BSS is the most direct basic component of the GSM system in relation to wireless cellular. It is directly connected to the user equipment through the wireless interface and is responsible for wireless transmission and reception and management of wireless resources.

The network subsystem NSS is the core of the whole system. It plays the role of exchange, connection and management between GSM mobile users and between mobile users and other communication network users. Mainly responsible for completing call processing, communication management, mobility management, partial radio resource management, security management, user data and device management, billing record processing, common channel, signaling processing, and local operation and maintenance base station subsystem BSS is mainly responsible for wireless information. Sending and receiving and radio resource management; at the same time, it is connected with NSS to realize communication connection between mobile users or mobile users and fixed network users, transmitting system information and user information, etc.; of course, also with operation support subsystem 0SS Interoperability between the two.

The base station controller (BSC), which is the control part of the base station subsystem (BSS), supports the A interface with the MSC, the Abi s interface with the BTS, and the X.25 interface with the 0MC. When two user equipments communicate, the two user equipments can communicate with each other through different base station BTSs, as shown in Figure 2, or through the same base station BTS, as shown in Figure 3.

As shown in FIG. 2, which is a schematic diagram of another GSM system in the prior art, the user equipments 21 and 22 are connected to different base stations BTS. When two user equipments 21 and 22 make a call or a short message, a slave user 21 needs to be set up. To the MSC of the core network, and then from the core network to the communication link of the user 22, the voice or short message is sent from the user 21 to the core network, and then sent from the core network to the user 22.

As shown in FIG. 3, it is a schematic structural diagram of another GSM system in the prior art, and the user equipment 31,

32 connects to the same BTS, and the voice or short message content sent by the base station BTS to the core network is returned to the BTS by the core network.

As can be seen from the above description, when communicating, the BSC controls the resource allocation of the BTS, and the core network performs user and bill related processing. That is to say, the two user equipments that communicate, whether belonging to one base station or different base stations, need to go through the BTS to BSC to the core network when communicating.

When the connection between the BTS and the BSC fails or is interrupted, communication will not be possible due to lack of voice signaling processing, and even if the two user equipments are under the same base station, voice calls or short messages cannot be made. Especially when the cell is in a remote area, the transmission distance between the BSC and the BTS is very long, and there is a great uncertainty. If the transmission is interrupted for some reason, all services will not continue. Because the base station is remote, the transmission is very long, and the positioning problem is difficult, which may cause long-term interruption of the service and seriously affect the communication quality. Summary of the invention

An aspect of the present invention discloses a communication method and a local management system, which can ensure normal communication and improve communication quality when a failure or interruption occurs between a base station and a base station controller. In an aspect of the invention, a communication method is disclosed, which includes:

When it is determined that the calling and called users are all under the coverage of the local management system, the local management system establishes a communication link between the calling party and the called party, and completes communication between the calling party and the called party;

The local management system includes interconnected base stations and accessory devices, and the functions of the base station controller and the core network are implemented by the base station and the accessory device.

In another aspect of the present invention, a local management system is disclosed, including a base station and an accessory device connected to each other, and a function of the base station controller and the core network is implemented by the base station and the accessory device, when both the primary and the called user are in the When the local management system is covered, the base station and the accessory device cooperate to establish a communication link between the calling party and the called party, and complete communication between the calling party and the called party.

The technical solution described above can ensure that a fault or a medium occurs between the base station and the base station controller.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic diagram of a network structure of a GSM in the prior art;

2 is a schematic structural diagram of another GSM system in the prior art;

3 is a schematic structural diagram of another GSM system in the prior art;

4 is a schematic structural diagram of a communication system 400 according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart diagram of a communication method according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a local management system 60 according to another embodiment of the present invention; FIG. 7 is a schematic flowchart of a communication method according to another embodiment of the present invention; FIG. 8 is a schematic flowchart of a communication method according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION In the following description, for purposes of illustration and description, reference However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the invention.

The technical solution of the present invention can be applied to various communication systems, for example, GSM, Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), general packet GPRS (General Packet Radio Service), Long Term Evolution (LTE), etc. However, for convenience of description, the following embodiments are described in detail by taking GSM as an example. A mobile terminal (Mobi le Terminal), which may also be called a mobile user (UE), a mobile user equipment, etc., may be performed by using a radio access network (for example, RAN, Radio Access Network) and one or more core networks. Communication, the mobile terminal may be a mobile station, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle, Exchange language and/or data with the wireless access network.

As shown in FIG. 4, it is a schematic structural diagram of a communication system 400 according to an embodiment of the present invention, which is mainly as follows.

The communication system 400 can include a transmission plane 410, a control plane 420, an MSC/VLR 45, and an HLR 46. The transmission plane 410 can include a plurality of base stations 43 coupled to each other by optical fibers. Similarly, the control plane 420 can include a plurality of base station controllers 44 coupled to each other by optical fibers, and these fibers are used to connect the base stations 43 described above. The base station 43, the base station controller 44 and the MSC/VLR 45 can communicate with each other by optical, electrical or wireless methods. Multiple signals can pass through the light path The transmission plane 410 described above is transmitted and passed through the base station 43 described above.

User equipment 40A, 40B may access the network through base station 43, for example, through the same base station, or through different base stations.

The MSC/VLR45 can also be communicatively coupled to the HLR 46, the public data network, the public telephone network, and the integrated services digital network.

In addition, at least some of the base stations, e.g., base stations located at the edge of the transmission plane 410, can be used to transmit data to other base stations or other base station controllers, wherein the above data is applied to the transmission plane 410 described above. Similarly, at least some of the base station controllers, such as the base station controller located at the edge of the control plane, can be used for data transmission to other base station controllers or other MSC/VLRs, wherein the above data is applied to the control plane 420 described above.

The communication system 400 as shown includes only four base stations 43, two base station controllers 44 and one MSC/VLR 45. The communication system 400 can include any number of base stations 43, base station controller 44 or MSC/VLR 45. Moreover, as shown in FIG. 4, when a plurality of base station controllers 44 and a plurality of base stations 43 are in a one-to-one relationship, a plurality of base stations 43 may be connected to one base station controller 44, and vice versa. Similarly, as shown in FIG. 4, when a plurality of base station controllers 44 are connected to an MSC/VLR 45, the communication system 400 can have multiple MSC/VLRs 45, and the base station controller 44 can be connected to one or more MSC/VLRs 45. .

In another embodiment of the present invention, the user equipment 40A, 40B and the base station 43 can communicate via the Um interface. The base station 43 and the base station controller 44 can communicate via the Abi s interface. For example, the physical layer connection can be optical fiber or other (e.g., E1) connection mode. The base station controller 44 and the MSC/VLR 45 can communicate via the A interface, for example, by fiber optics or other transmission means. The MSC/VLR45 and the HLR46 can communicate via the C interface, for example, via fiber optics or other transmission methods. Of course, these devices can also communicate through other interfaces or custom interfaces, and the present invention is not limited thereto.

In general, the BTS 43 is placed at the location of the cell, and the BSC 44 and core network devices (eg, MSC/VLR45, HLR46) are placed in relatively central areas for unified maintenance and management. When the community is in a remote area, such as a mountainous area, a desert area, or a rural area, considering that for a remote area, a large part of the business may only occur between local users under the same base station, such as users in the same village or neighboring villages. Between calls, text messages. The business between the villagers and external users may only account for a small part of the entire business. When the transmission between the BTS 43 and the BSC 44 is interrupted, the BTS 13 itself does not malfunction, but the control of the BSC 44 is lost.

Therefore, in order to solve the problem that the transmission distance between the BSC44 and the BTS43 is very long, if the transmission is interrupted for some reason, all services cannot continue. An accessory device 41 is added, which can be integrated into the base station 43 to form a new base station, and can be connected to the BTS43, so that the BTS43 can operate independently, and ensure that calls and text messages are sent between users in the coverage area of the BTS43. It may ensure most of the services when the connection between the BTS and the BSC is interrupted, which will help improve the communication quality in remote areas.

For example, the accessory device 41 is a computer that implements all or part of the functions of the base station controller and the core network.

In another embodiment of the present invention, a plurality of base stations may be present, each base station is integrated with one accessory device or connected to one accessory device, and a plurality of base stations may be connected to one accessory device in common. A plurality of base stations are connected to each other, and user information is coexisted among a plurality of base stations. User information under a plurality of base stations is stored in each base station, and a plurality of base stations or auxiliary devices are interconnected by a network cable, and the plurality of base stations form a local Management system.

In general, the base station 43 supports two modes of operation, namely, a normal mode when Abi s transmission is normal and a single station mode when Abi s transmission is interrupted, and the base station can automatically switch between the two modes. The single-station mode refers to the operating mode in which the BTS is only connected to the attached device and not connected to the BSC after the _{AM s} port link is interrupted.

The normal mode refers to that the base station communicates with the core network through the base station controller when the interface between the base station and the base station controller is normal.

The single station mode establishes a communication link between the calling party and the called party in a mutual cooperation manner between the base station and the accessory device, and completes communication between the calling party and the called party. When base station 43 is in the normal mode, base station 43 can operate as part of a normal GSM system, consistent with existing base station systems.

During the failure of the base station 43 to communicate with the base station controller 44, when the base station 43 determines that both users of the communication are under the coverage of the local management system, for example, all of the local users of the base station 43, the base station 43 cooperates with the accessory device 41. Communication, wherein the base station 43 is communicatively coupled to the accessory device 41, and the functions of the base station controller 44 and the core network are implemented by the base station 43 and the accessory device 41.

In another embodiment of the present invention, the accessory device 41 is connected to the base station 43 via an Ethernet line to establish a TCP/IP connection, and the accessory device 41 and the base station 43 constitute a local management system. The base station 43 and the accessory device 41 can also be integrated to form a new base station.

In another embodiment of the present invention, the accessory device 41 may be a PC as a maintenance terminal of the human-machine interface. The operation of the base station 43 is performed by the accessory device 41 to complete the account opening operation of the user in the local management system, as well as the configuration, alarm, phone system, bill, and the like of the local management system. In another embodiment of the invention, some of the functions of base station 43 may also be partially accomplished by accessory device 41 if limited by the processing capabilities of base station 43, or for ease of deployment.

The above local management system can connect to a common communication network, such as a GSM network, and can run the software of the local management system on the base station 43 or its accessory device 41. The main function of the local management system is to support the operation of the base station in single station mode.

The local management system described above does not have a significant impact on the user's use. The user can use the described local management system as if using a normal GSM system.

The user equipments 40A, 40B can be in the same base station or in different base stations in the same BSC. However, for the convenience of description, the following embodiments take two user equipments under the same base station as an example. Be explained.

In general, the base station and the accessory device can be generally integrated to assume all or part of the functions of the base station controller and the core network, wherein some functions refer to functions set according to requirements, for example, if short message communication is to be performed, the base station and Affiliated equipment needs to undertake the realization of SMS communication Function, for convenience of description, the components of the base station and the attached equipment are collectively referred to as a base station.

For example, when the transmission between the base station and the base station controller is interrupted, the base station performs a radio resource management function, and can allocate, release, and manage the radio resources to implement the function of the base station controller.

For example, when the transmission between the base station and the base station controller is interrupted, the base station performs short message unpacking, packing, receiving, forwarding, and the like to implement the function of the short message center.

For example, when the transmission between the base station and the base station controller is interrupted, the base station performs functions such as short message unpacking and counting to implement the function of the core network.

As shown in FIG. 5, a schematic flowchart of a communication method according to another embodiment of the present invention is shown. Referring to FIG. 4 and FIG. 5, the process of the communication method may be as follows.

51. The SIM card of the user equipment simultaneously opens an account in the core network and the local management system;

For example, the SIM card of the user equipment 40A, 40B under the jurisdiction of the base station 43 simultaneously opens an account in the core network and the local management system, for example, storing user information in the HLR 46 and the base station 43 of the local management system, any one of the accessory devices 41. For example, information such as registration information of the user equipment 40A, 40B, such as an International Mobile Subscriber Identity (IMSI), a telephone number, and the like, are added to the HLR 46 or the base station 43 of the local management system, and the accessory device 41. Any one.

Among them, the user who opens an account in the local management system is called a local user, and the user who does not open an account is called an external user. A call between local users is called a local call, and the rest is called an external call L]. The external call is managed by the BSC and the core network to which the base station is connected, and is used when the base station and the BSC are connected normally.

52. When the connection between the base station and the base station controller is normal, the user equipment performs normal services, and various management and charging are controlled by the base station controller and the core network.

For example, when the base station 43 is properly connected to the base station controller 44, the base station 43 communicates the communication of the user equipments 40A, 40B through the base station controller 44 and the equipment of the core network, such as the MSC/VLR 45 and the HLR 46.

53. After the connection between the base station and the base station controller is interrupted, the user equipment within the coverage of the base station is The local management system manages and communicates.

For example, after the connection between the base station 43 and the base station controller 44 is interrupted, the communication of the user equipments 40A, 40B is completed by the base station 43 in cooperation with the accessory device 41, wherein the base station 43 is communicatively coupled to the accessory device 41, and the base station controller 44 The function is implemented by the base station 43 and the accessory device 41 in common.

For example, the base station 43 may be in the form of a single base station or a base station plus an accessory device. The base station 43 has functions such as channel management, resource allocation, and accounting. The base station 43 receives the short message initiated by the calling user 40A according to the normal process. Or a voice call request.

In order to solve the problem that the base station is switched between the normal mode and the single-station mode, the base station includes a detecting unit, configured to detect whether the Abis interface of the base station and the base station controller is normal, for example, the detecting unit periodically sends a detection message to the base station controller, and receives The response considers the link to be normal, otherwise the link is considered to be down. When the detection unit detects that the Abis link is interrupted or resumed, it can enter single station mode or return to normal mode.

In order to solve the problem that the base station operates in the single station mode, the local management system consisting of the base station and the accessory equipment needs to have the following functions: voice service related signaling process processing; short message service related signaling process processing; bill management; base station maintenance The user management, the logical structure of the local management system can be as described in FIG. 6, which is a node of the local management system 60 according to another embodiment of the present invention, for example, when the transmission between the base station and the base station controller is interrupted, the local management is performed. The system 60 performs a radio resource management function to allocate, release, and manage radio resources to implement the functions of the base station controller.

For example, when the transmission between the base station and the base station controller is interrupted, the local management system 60 performs short message unpacking, packing, receiving, forwarding, and the like to implement the function of the short message center.

For example, when the transmission between the base station and the base station controller is interrupted, the local management system 60 performs functions such as short message unpacking and accounting to implement the function of the core network.

As shown in FIG. 6, the local management system 60 can include: a mode conversion unit 601, a single station. The configuration unit 603, the user management unit 605, the bill management unit 607, the device management unit 609, and the service processing unit 611, wherein the mode conversion unit 601, the single station configuration unit 603, the user management unit 605, and the bill management unit 607 Any combination or all of the device management unit 609 and the service processing unit 611 may be located in the base station or in the attached device, and the present invention is not limited thereto.

The mode conversion unit 601, the single station configuration unit 603, the user management unit 605, the bill management unit 607, the device management unit 609, and the service processing unit 611 are in communication with each other. FIG. 6 only shows that each unit has a connection relationship, and The representation is merely such a connection relationship, and the connection relationship of each unit is not limited by the present invention.

The mode converting unit 601 is configured to determine whether to switch the working mode of the base station between the normal mode and the single station mode according to whether the detecting unit detects whether the link between the base station and the base station controller is normal. Preferably, the mode conversion unit 601 is located at a base station. Of course, the mode conversion unit 601 can also be located in the accessory device.

For example, when the detecting unit detects that the Abis port of the base station and the base station controller is normal, the base station is used as a normal base station, and if the current base station working mode is the normal mode, the mode converting unit 601 determines that the switching of the working mode is not performed; The current working mode is a single station mode, and the mode converting unit 601 converts the working mode of the base station into a normal mode, that is, the base station operates in the normal mode.

When the detecting unit detects the Abis port link failure of the base station and the base station controller, for example, the interrupt, the mode conversion unit 601 determines that the base station should operate in the single station mode, for example, if the current base station working mode is the normal mode, the mode The converting unit 601 converts the operating mode of the base station into a single station mode; if the current working mode is the single station mode, the mode converting unit 601 decides not to perform mode switching.

The single station configuration unit 603 is configured to configure and save configuration information of the base station. The single station configuration unit 603 may be located at the base station or at the attached device.

In the normal mode, the site and cell configuration of the BTS are sent by the BSC to the base station. But when the Abis mouth After the interruption, the BTS cannot obtain the configuration from the BSC. For the automatic operation of the system, the BTS should not be manually configured at this time. The BTS must complete the configuration itself, that is, the single-station configuration unit 603 is required to configure and save the base station. Configuration information.

The single-station configuration unit 603 stores the configuration information of the BTS, and the configuration information may be the default configuration information, or the configuration information obtained from the BSC when the Abis interface is normal. For example, the configuration information includes the number of carriers and the frequency of the cell. Channel configuration, global cell identification (CGI, Cell Global Identification), transmit power, etc. The single-station configuration unit 603 is further configured to modify the configuration information. For example, the user may modify the graphic user interface (GUI, Graphical User Interface), for example, changing the cell frequency point and transmitting through the operation interface of the base station or the accessory device. Power, etc. This configuration can be used when the BTS enters single station mode.

Through the configuration management interface of the local management system, such as the configuration management interface of the base station or the accessory device, the base station administrator can also modify the configuration information in the single station mode saved by the single station configuration unit 603. For example, the modified configuration information automatically replaces the default or configuration information obtained from the BSC. After the BTS enters the single-station mode, the manually configured settings are prioritized.

In order to solve the technical problem that the local management system cannot obtain user information from the core network when the local management system is in the single-station mode, the BTS cannot establish contact with the core network, and the user management unit 605 is used to complete registration of the local management system. The user's account opening, save the account opening information, when the base station enters the single station mode, it can provide services for users who have already opened an account in the local management system. For example, the user management unit 605 is used to store registration information of the user, such as IMSI, telephone number, credit balance, and the like.

The user management unit 605 can be located at the base station or at the accessory device.

In another embodiment of the present invention, the user management unit 605 is further configured to complete the user's credit record, such as completing payment, monthly deduction, and the like.

The bill management unit 607 is configured to manage the bill of the base station, record the communication information, for example, record the information of the call and the short message, generate the bill file according to the fixed format, and transmit the generated bill file to the billing system (not shown). ), so that the billing system can use the bill file to generate users Phone bill information.

The bill management unit 607 can be located at the base station or at the attached device.

The device management unit 609 is configured to complete monitoring and alarming on the status of the base station or the accessory device, for example, displaying the link status related to the BTS, and providing the necessary information to the administrator of the base station.

The service processing unit 611 is used for running the single station mode and the normal mode supported by the base station of the local management system.

In the normal mode, the service processing of the service processing unit 611 is similar to that of a normal base station.

After entering the single-station mode, the service processing unit 611 needs to assume the functions of the base station controller and the core network, for example, establish a communication link, complete communication between the calling and called users, for example, to complete channel resource management, user detection. , the establishment of communication links, the sending and receiving of short messages.

Preferably, the service processing unit 611 is located at the base station. Of course, it may also be located in an accessory device, which is not limited by the present invention.

For example, the following describes the working process of the local management system by taking the local management system in the normal mode and the single-station mode as an example.

FIG. 7 is a schematic flowchart of a communication method according to another embodiment of the present invention. The communication method may be as follows, as shown in FIG. 6 and FIG.

71, detecting whether the connection of the Abis port is normal;

For example, the detecting unit periodically sends a detection message to the base station controller, and if the response is received, determines that the link is normal, otherwise determines that the link is broken.

If the Abis port is connected properly, go to 73, otherwise, go to 72.

72, detecting whether the connection between the base station and the accessory device is normal;

When the Abis port of the base station and the base station controller is properly connected, check whether the connection between the base station and the attached device is normal. If it is normal, enter 74. Otherwise, enter 75.

For example, after detecting that the Abis interface of the base station and the base station controller is normal, the detecting unit further detects whether the connection between the base station and the accessory device is normal. For example, the detecting unit periodically sends a detection message to the accessory device, and if the response is received, the link is determined to be normal. Otherwise, the link is broken. 73, enter the normal mode;

When the detecting unit detects that the Abis port connection between the base station and the base station controller is normal, the local management system can work in the normal mode regardless of whether the connection between the base station and the attached device is normal. For example, mode conversion unit 601 determines that the base station is operating in normal mode.

In another embodiment of the present invention, the local management system may further include a determining unit, configured to determine whether the communication parties are local users of the base station. For example, the determining unit may be located at the base station or may be located in an accessory device. For example, if the calling user initiates a call, for example, the call includes voice and short message, the service processing unit 611 obtains registration information of the calling user, such as IMSI, from the primary call signaling, and transmits the information to the determining unit, where the determining unit is The registration information of the calling user (for example, IMSI) and the IMSI of the called user determine whether the calling user and the called user are local users who have opened an account in the local management system.

For example, when the detecting unit detects that the connection between the base station and the accessory device is normal, the determining unit determines whether the registration information of the calling user, such as the IMSI, transmitted by the service processing unit 611 is saved in the user information list of the user management unit 605. If yes, the determining unit determines that the calling user is a local user of the base station, otherwise, determines that the calling user is a non-local user.

In another embodiment of the present invention, the determining unit is further configured to determine whether the called user is a local user, for example, the determining unit queries whether the IMSI of the called user is in the list of the online users recorded by the local management system. For example, whether the IMSI of the called user is stored in the list of the online users recorded by the user management unit 605, and if so, the determining unit determines that the called user is a local user of the base station, otherwise, determining the The calling user is a non-local user.

When the judging unit judges that either or both of the calling user and the called user are non-local users, the mode converting unit 601 determines that the local management system enters the normal mode, that is, the service processing unit 611 submits the main call signaling to the base station controller. The local management system completes the call with the base station controller and the core network.

In another embodiment of the present invention, the determining unit further determines whether the called user is under the coverage of the local management system, for example, the determining unit queries whether the IMSI of the called user is in the local management system. Recorded in the list of users on the network. If the called user is not covered by the local management system, the service processing unit 611 submits the primary call signaling to the base station controller, and the local management system completes the call together with the base station controller and the core network.

When the judging unit judges that both the calling user and the called user are local users, since the Abis port connection between the base station and the base station controller is normal, and the connection between the base station and the accessory device is also normal, the mode conversion unit 601 generally determines The local management system enters the normal mode. However, in order to save system resources, in another embodiment of the present invention, if the called user is also under the local management system coverage, the mode conversion unit 601 may determine that the local management system enters the single station mode, that is, in the local management system. After the call is completed, the service processing unit 611 establishes a communication link in a local exchange manner, completes communication between the calling and called users, and the bill management unit 607 generates a bill.

74, switch to single station mode;

When the Abis link between the base station and the base station controller is interrupted, and the base station and the attached device are connected normally, the local management system enters the single station mode.

For example, the detecting unit detects the Abis link between the base station and the base station controller, and whether the connection between the base station and the accessory device is normal, when the detecting unit detects the Abis link interruption between the base station and the base station controller, and the base station and the accessory device are normally connected. At the time, the mode conversion unit 601 determines that the local management system enters the single station mode.

In the single-station mode, the users of the calling and called parties under the coverage of the local management system can communicate, for example, the local management system covers the local and the called local users, between the local users and the external users, and the external users of the calling and called parties. The call can be made between the two, as long as both parties are covered by the local management system, the specific process can be as shown in Figure 8.

75, communication is interrupted.

When the detecting unit detects the Abis link interruption between the base station and the base station controller, and detects that the connection between the base station and the accessory device is interrupted, for example, when the accessory device fails, the local management system cannot be maintained because the local management system cannot be maintained. Base station, communication cannot be performed normally.

Moreover, the detecting unit detects the Abis link of the base station and the base station controller during the communication process. Is it normal? The checking of the Abis interface is performed cyclically, and the mode converting unit 601 switches between the normal mode and the single station mode according to the state of the Abis interface.

When the detecting unit detects the Abis link interruption between the base station and the base station controller, and the connection between the base station and the accessory device is normal, the working process can be as shown in FIG. 8 , which is a schematic flowchart of a communication method according to another embodiment of the present invention. .

81, the user initiates a call;

For example, the calling user initiates a call or short message call, the detecting unit detects the Abis link between the base station and the base station controller, and whether the connection between the base station and the accessory device is normal, and the detecting unit detects the Abis chain between the base station and the base station controller. When the circuit is interrupted, and the base station and the attached device are connected normally, the mode conversion unit 601 determines that the local management system enters the single station mode.

82, detecting whether it is a local user;

For example, if the calling user initiates a call, the service processing unit 611 obtains registration information of the calling user, such as IMSI, from the primary call signaling, and transmits the information to the determining unit, and the determining unit is based on the registration information of the calling user (for example, IMSI). And the IMSI of the called user determines whether the calling user and the called user are local users who have opened an account in the local management system.

For example, the determining unit determines whether the registration information of the calling user, such as the IMSI, transmitted by the service processing unit 611 is stored in the user information list of the user management unit 605. If yes, the determining unit determines the calling party. The user is a local user of the base station, otherwise, the calling user is determined to be a non-local user.

In another embodiment of the present invention, the determining unit is further configured to determine whether the called user is a local user. For example, the determining unit queries whether the IMSI of the called user is in a list of user information recorded by the local management system, for example, Querying whether the IMSI of the called user is stored in the user information list recorded by the user management unit 605. If yes, the determining unit determines that the called user is a local user of the base station, otherwise, determining that the calling user is Non-local users.

When the calling and called users are all local users, and the judging unit judges that the calling and called local users are all under the local management system coverage, perform 83. If at least one of the primary and called users is a non-local user, That is, the communication can be ended, and further, it can be determined whether the calling and called users are currently under the coverage of the local management system, and the execution 85 is as follows.

83, setting up a call link and performing a communication process;

For example, the service processing unit 611 establishes a communication link between the calling and called users to complete communication between the calling and called users.

84, generating a bill;

For example, the bill management unit 607 generates a bill, and the bill associated with the call between the main and the called party is transmitted by the bill management unit 607 to the billing center, and the billing system processes the bill. The base station is connected to the billing system through the IP network to transmit bills.

85, whether the user record list has a record;

In another embodiment of the present invention, when at least one of the calling and called users is an external user, that is, a non-local user, the determining unit further determines whether the calling and called users are currently under the coverage of the local management system, for example, by judging Whether the user has a user information record in the user management unit 605. If there is, execute 83, otherwise the communication is interrupted and ends.

For example, when an external user enters the local management system coverage area, the external user initiates a location area update or network selection operation, where the external user may be the calling user or the called user. The user management unit 605 of the local management system determines that it is an unknown user, and records the information of the external user, and assigns it a mobile station international ISDN number (MSISDN, Mobile Station International ISDN Number). ₀ This external user is called a temporary user. The judging unit obtains, according to whether the non-local user's IMSI is in the non-local user's record list, whether the non-local user is under the local management system coverage, for example, after a user's signaling, the service processing unit 611 obtains its IMSI, if the IMSI is not present. In the list of records of the local user, it is considered to be a non-local user, and this user is recorded in the user management unit 605 of the local management system. The judging unit then judges whether the IMSI of the user has been recorded in the list of records in the non-local user, and if not, the user management unit 605 adds a record of the non-local user. The subsequent judgment unit needs to judge whether the user is using the IMSI in the record when it is under the coverage of the local management system. Find in.

When the subsequent user initiates a call or is called, the judging unit can judge that the external user is under the local management system coverage according to its IMSI already recorded in the user management unit.

In another embodiment of the present invention, the service processing unit 611 notifies the external user of the newly assigned MSISDN number in the form of a short message.

When the detecting unit detects the Abis link interruption between the base station and the base station controller, and detects that the connection between the base station and the accessory device is normal, and the determining unit determines that the calling and called users are all under the coverage of the local management system, the mode converting unit 601 The local management system is determined to enter the single-station mode, and the service processing unit 611 establishes a communication link in a local exchange manner to complete communication between the calling and called users, and the bill management unit 607 generates a bill.

For example, when a calling user initiates a call, the service processing unit 611 of the local management system obtains its IMSI, and the judging unit judges whether the calling user is a local user or a temporary user according to the IMSI, and if not, the call fails.

The judging unit queries the user management unit 605 to determine whether the called user is a local user or a temporary user, and if not, the call fails.

If the judging unit judges that the main called user is a local user or a temporary user under the coverage of the local management system, the service processing unit 611 establishes a communication link in a local exchange manner to complete communication between the calling and called users, and the bill management unit 607 Generate a bill.

The bill associated with the call between the calling party and the called party is transmitted by the bill management unit 607 to the billing center, and the billing system processes the bill. The base station is connected to the charging system through the IP network to transmit the bill.

Moreover, the detecting unit detects whether the Abis link of the base station and the base station controller is normal during communication. The inspection of the Abis interface is cyclic, and the mode conversion unit 601 switches between the normal mode and the single station mode according to the Abis interface state.

For example, when the detecting unit detects that the Abis port connection between the base station and the base station controller returns to normal, the detecting unit switches back to the normal mode. For example, the mode conversion unit 601 detects the base station according to the detection unit. The connection with the Abis port of the base station controller returns to normal, and the local management system single station mode is switched to the normal mode.

In another embodiment of the present invention, the local management system may initially consider connecting to the BSC as a solution for a small coverage to implement local communication.

In another embodiment of the present invention, the local management system includes at least one base station, and a plurality of base stations are connected in common to one accessory device. For example, two base stations are commonly connected to one accessory device. User information is coexisted between multiple base stations. For example, the user management unit in each base station stores user information under multiple base stations, and multiple base stations or accessory devices are interconnected by a network cable, and multiple base stations form a local device. Management system. For convenience of description, the present embodiment is described by taking two base stations together to connect one accessory device as an example.

For example, the calling user accesses the first base station, the called user accesses the second base station, and the first base station and the second base station are connected.

The communication process of this embodiment is basically similar to the communication process described in FIG. 7, and the difference is: In this embodiment, the first base station communicates with the calling user, for example, the establishment and release of the communication link, and the first base station performs resource allocation. , billing and management; the second base station communicates with the called user, such as the establishment and release of the communication link, and the second base station performs resource allocation, billing and management. The first base station and the second base station need to perform message forwarding. As for determining whether the user and the called user are the users of the management system, since the user management unit in each base station stores the user information under the plurality of base stations, the first base station can determine whether the primary and the called user are the users. The user of the management system may also be that the second base station determines whether the primary called user is a user of the management system, or that each base station determines whether the user accessed by the user is a user of the management system.

It can be seen from the above description that the local management system can support the communication services in the coverage of a single station, such as voice and short message services, in the case of Abis interface transmission interruption, so that the base station and the base station controller After losing contact, the communication business will not be completely paralyzed. Provides protection for communications in remote, poorly transmitted areas.

It will be apparent to those skilled in the art that, for the convenience and brevity of the description, the above For the specific working process of the system, the device and the unit, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a The computer device (which may be a personal computer, server, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a medium such as a USB flash drive, a removable hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, which can store program codes.

In the several embodiments provided herein, it is to be understood that the disclosed systems, devices, and methods may be implemented in other ways without departing from the spirit and scope of the application. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. The units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

In addition, the described systems, devices, and methods, and the schematic diagrams of various embodiments, may be combined or integrated with other systems, units, techniques or methods without departing from the scope of the present application. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A communication method, comprising:

2. The method according to claim 1, wherein the determining that the calling and called users are both under the coverage of the local management system further comprises:

A link between the base station and the base station controller is detected to be faulty.

3. The method of claim 1, further comprising:

When it is determined that the registration information of the calling and called user is saved in the local management system, it is determined that the primary called user is under the local management system coverage.

A local management system, comprising: a base station and an accessory device connected to each other, and the functions of the base station controller and the core network are jointly implemented by the base station and the accessory device, and the primary and called users are locally managed. When the system is under coverage, the base station and the accessory device cooperate to establish a communication link between the calling party and the called party, and complete communication between the calling party and the called party.

5. The system of claim 4, wherein the base station and the accessory device are integrated to form a new base station.

The system according to claim 4 or 5, wherein the base station further comprises: a detecting unit, configured to detect whether an interface link between the base station and the base station controller is normal; the base station or the accessory device further includes: a mode converting unit, configured to determine, according to the detection result of the detecting unit, whether to convert the working mode of the local management system between the normal mode and the single station mode;

When the normal mode is that the interface between the base station and the base station controller is normal, the base station performs communication with the core network through the base station controller; The single station mode is that the base station and the accessory device cooperate with each other to establish a communication link, and complete communication between the calling and called users.

7. The system of claim 6, wherein the base station or accessory device further comprises:

A service processing unit is configured to establish a communication link and complete communication between the called party and the called party.

8. The system of claim 6, wherein the base station or accessory device further comprises:

A single station configuration unit for configuring and saving configuration information of a base station.

The system according to claim 8, wherein the configuration information is default configuration information, or the configuration information acquired by the single station configuration unit from the base station controller when the Abis port is normal.

The system according to claim 9, wherein the single station configuration unit is further configured to modify the configuration information.

The system of claim 6, wherein the base station or the accessory device further comprises:

The user management unit is configured to complete the account opening of the user who needs to be registered in the local management system, and save the account opening information.

The system of claim 11, wherein the base station or the accessory device further comprises:

The determining unit is configured to determine, according to the user information saved by the user management unit, whether the main called user is covered by the local management system.

The bill management unit is configured to manage the bill of the base station, record the communication information, generate the bill file, and transmit the generated bill file to the billing system.

14. The system of claim 6 wherein: said base station or accessory device further Includes:

The device management unit is configured to complete monitoring and alarming on the status of the base station or the accessory device.

The system of claim 4, wherein the accessory device is a computer that implements a base station controller and a core network function.