WO2006125372A1

WO2006125372A1 - System and method for pbx accessing wireless communication network

Info

Publication number: WO2006125372A1
Application number: PCT/CN2006/000993
Authority: WO
Inventors: Zongyan Li
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-05-25
Filing date: 2006-05-16
Publication date: 2006-11-30
Also published as: CN100455063C; CN1870780A

Abstract

A system and method for PBX accessing wireless communication network is involved in the invention, the system including wireless communication network side, PBX, and the fixed station wired-connected with PBX in the wireless communication network, the fixed station accessing wirelessly the wireless communication network, wherein PBX communicating with the wireless communication network side through the fixed station. The system and method applied by the invention make the fixed terminals charged by PBX access wireless communication network without increasing developing cost, and realize the communication between the wired terminals charged by PBX and wireless communication network.

Description

System and method for user small switch to access wireless communication network

Technical field

The present invention relates to a PBX (PBX) access technology, and in particular, to a system and method for accessing a PBX to a wireless communication network. Background of the invention

The Wireless Local Loop (WLL) system is a wireless access system that provides telecommunications services by using a wireless connection instead of a circuit connection between the terminal and the switch. Wireless communication networks WLL, such as Code Division Multiple Access (CDMA) networks WLL is a wireless local loop system solution based on wireless communication network specifications.

In order to implement a wireless communication network WLL, a wireless communication network, such as a CDMA network, can provide a wireless PBX function, so that a wired terminal under the jurisdiction of the wireless PBX can access the wireless communication network through the wireless PBX.

At present, a schematic diagram of a system for providing a wireless PBX function in a wireless communication network is shown in FIG. 1: Assuming that the wireless communication network is a CDMA network, the system includes a wireless PBX 100, a plurality of wired terminals 101 under the jurisdiction of the wireless PBX 100, and a CDMA network 102. The plurality of wired terminals 101 are respectively connected to the wireless PBX 100 by using a plurality of telephone line interfaces of the wireless PBX, and the wireless PBX 100 has a wireless access module to implement wireless communication with the CDMA network 102. With this system, communication between a plurality of wired terminals 101 and a CDMA network 102 governed by the wireless PBX 100 can be realized.

However, the implementation of the PBX function provided by the wireless communication network using the system shown in FIG. 1 has disadvantages: it is necessary to abandon the existing PBX currently used, and develop a wireless PBX dedicated to a wireless communication network, which must be implemented. The switching function of the wired terminal under the jurisdiction must realize the function of wireless access to the wireless communication network, which is complicated to implement and high in development cost. Summary of the invention

In view of this, the main object of the present invention is to provide a system for accessing a wireless communication network by using a PBX, which can enable a wired terminal under the jurisdiction of a PBX to access wireless communication without increasing development cost. The internet.

Another aspect of the present invention provides a method for accessing a wireless communication network by using a PBX, which can easily access a food line terminal under the jurisdiction of the PBX to the wireless communication network without increasing the development cost, and is implemented by the PBX. Communication between the wired terminal and the wireless communication network.

According to the above object, the technical solution of the present invention is achieved as follows:

A system for a user PBX to access a wireless communication network, the system comprising a network side of a wireless communication network, the system further comprising: a fixed station of a PBX and a wireless communication network wiredly connected to the PBX, the fixed station wirelessly accessing the wireless On the network side of the communication network, the PBX communicates with the network side of the wireless communication network through the fixed station.

The fixed station is a T-type terminal or a P-type terminal in a wireless communication network.

The number of the fixed stations is one or more, and the PBX accesses the telephone line interface of the fixed station through a wired telephone line through its RJ-11 interface.

The system also includes one or more wired terminals under the jurisdiction of the PBX, the wired terminals being wired to the PBX, in turn communicating with the network side of the wireless communication network via the PBX and the fixed station.

A method for accessing a wireless communication network by using a PBX, and a PBX wired access to a fixed station in a wireless communication network, the method further comprising:

When a wired terminal under the jurisdiction of the PBX initiates a call, the wired terminal under the jurisdiction of the PBX initiates a call carrying the called number to the fixed station connected to the PBX through the PBX, and the fixed station connects to the call through the network side of the wireless communication network according to the called number. The called terminal establishes communication between the wired terminal under the jurisdiction of the PBX and the called terminal; When the wired terminal under the jurisdiction of the PBX is called, the network side of the wireless communication network receives the call sent by the calling terminal and carries the number corresponding to the fixed station, and then connects the call to the fixed station according to the number corresponding to the fixed station, and the fixed station will call. After connecting to the PBX connected thereto, the PBX obtains the number corresponding to the wired terminal called by the calling terminal through the fixed station, and then connects to the wired terminal under the jurisdiction of the PBX, and establishes the calling terminal and the wired line under the jurisdiction of the PBX. Terminal communication.

The process in which the PBX obtains the number corresponding to the wired terminal called by the calling terminal through the fixed station is:

The PBX broadcasts a notification to the wireless communication network to obtain the number corresponding to the wired terminal under the jurisdiction of the PBX, and the wireless communication network transmits the number corresponding to the wired terminal received from the calling terminal to the PBX through the fixed station.

The number of fixed stations is one or more.

When the number of the fixed stations is one or more, the one or more fixed stations connected to the PBX correspond to the same small intersection indicator, and the small intersection indicator is one or more fixed stations connected to the PBX. The number corresponding to a fixed station, or the number set, is different from the number corresponding to one or more fixed stations connected to the PBX.

When the number of the fixed stations is one or more, the wireless communication network connects the call to the fixed station according to the number corresponding to the fixed station:

The wireless communication network selects one of the currently idle fixed stations of one or more fixed stations connected to the PBX according to a preset selection rule, and connects the call to the currently idle fixed station.

When the wired terminal under the jurisdiction of the PBX initiates a call or is called, the method further includes:

The wireless communication network charges the fixed station connected to the PBX;

Or set the intelligent network function in the wireless communication network, and enter the wired terminal under the jurisdiction of the PBX. Line billing separately;

Or the wireless communication network charges the fixed station connected to the PBX, and the PBX separately charges the wired terminal under the jurisdiction.

It can be seen from the above solution that the present invention uses the existing PBX to access a fixed station in the wireless communication network, so that the wired terminal under the jurisdiction of the PBX accesses the wireless communication network, and realizes the wired terminal and the wireless communication network under the jurisdiction of the PBX. Communication between. Since the present invention does not develop a wireless PBX dedicated to a wireless communication network as in the prior art, and uses an existing PBX to access an existing fixed station in a wireless communication network, the development cost is low and the order is realized. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of a system for providing a wireless PBX function in a wireless communication network of the prior art; FIG. 2 is a schematic diagram of a first embodiment of a system for accessing a wireless communication network of a PBX according to the present invention; FIG. 3 is a network side of a wireless communication network according to the present invention; Schematic diagram

4 is a flow chart of called signaling of a wired terminal under the jurisdiction of the PBX of the present invention;

FIG. 5 is a schematic diagram of Embodiment 2 of a system for accessing a PBX to a wireless communication network according to the present invention. Mode for carrying out the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be described in detail below with reference to the accompanying drawings.

The method provided by the present invention uses an existing PBX to connect an existing PBX to a fixed station of a wireless communication network, and a fixed station of the wireless communication network can wirelessly access the wireless communication network, thereby implementing a wireless PBX of the wireless communication network. Features.

The fixed station of the present invention is a T-type terminal of a wireless communication network, and the terminal is a wireless module without a microphone and an earpiece. The way the existing PBX is connected to the fixed station is through its own The telephone line interface uses a wired telephone line to access the telephone line interface of the fixed station.

Of course, the fixed station of the present invention may also be a P-type terminal of a wireless communication network, and the terminal is a wireless module with a microphone and an earpiece. Since the present invention does not require the use of a microphone and an earpiece of the P-type terminal, the present invention uses a P-type. As a fixed station, the terminal will increase the cost of the fixed station.

2 is a schematic diagram of a first embodiment of a system for accessing a wireless communication network of a PBX according to the present invention. It is assumed that the wireless communication network is a CDMA network, and the system includes: a PBX 200, a fixed station 201, and a network side 102 of the CDMA network. The PBX200 is an existing PBX widely used in the prior art and can administer a plurality of wired terminals. The PBX 200 accesses the telephone line interface of the fixed station 201 through a wired telephone line through its own telephone line interface, since the fixed station is in a CDMA network. The existing terminal equipment, so the network side 102 of the CDMA network allocates an International Mobile Subscriber Identity (IMSI) to the fixed station, that is, the network side 102 of the CDMA network only opens a number for identifying the terminal device for the fixed station.

The support of the present invention for a plurality of wired terminals, i.e., support for a plurality of wired terminals under the jurisdiction of a plurality of PBXs, is implemented by the PBX in accordance with the prior art.

When the fixed station is in another wireless communication network, the present invention can also assign the fixed station a telephone number (PN) or an electronic serial number (ESN) as a number for identifying the terminal device.

3 is a schematic diagram of a network side of a wireless communication network according to the present invention. It is assumed that the wireless communication network is a CDMA network, and the network side of the CDMA network includes: a base transceiver station (BTS), a radio access controller (RAC), and a local exchange (LE) And a telephone, wherein the BTS sends a call received from the CDMA network to the LE through the RAC, and the LE transmits the received call to the corresponding telephone; or the call sent by the telephone is sent to the RAC through the LE, and the RAC will The transmitted call is sent to the CDMA network through the BTS, and the whole process is the same as the prior art.

The calling process of the wired terminal under the jurisdiction of the PBX, that is, the wired terminal under the jurisdiction of the PBX The call to the CDMA network is the same as the calling procedure of the wired terminal connected to the wireless PBX 100 in the prior art. That is: the wired terminal under the jurisdiction of ΡΒΧ initiates a call carrying the called number to the fixed station connected to the 通过 via the FBX, and the fixed station connects to the called terminal through the wireless communication network according to the called number 3⁄4, and establishes a cable under the jurisdiction of the PBX. Communication between the terminal and the called terminal.

When the PBX is connected to a fixed station, if the wired terminal under the jurisdiction of the PBX is communicating with the CDMA network, the other wired terminals under the jurisdiction of the PBX cannot perform any operations, such as pressing buttons, flashing, etc. Any operation has no effect on the wired terminals governed by the PBX that is communicating with the CDMA network.

The called process of the wired terminal under the jurisdiction of the PB, that is, the call is initiated by the CDMA network to the wired terminal under the jurisdiction of the PBX, which is basically the same as the called procedure of the wired terminal connected to the fixed station in the prior art. The only difference is that when the CDMA network initiates a call, it carries the number corresponding to the fixed station connected to the PBX. After the number corresponding to the fixed station is connected, the fixed station connects the call to the PBX, and the PBX passes the fixed station connected to the CDMA network. The playback notification dials the number corresponding to the wired terminal under the jurisdiction of the PBX, and the PBX receives the call connection of the wired terminal under the jurisdiction of the PBX corresponding to the PBX that is transmitted by the CDMA network after receiving the number corresponding to the wired terminal under the CDMA network. Implement the called process of the wired terminal under the jurisdiction of the PBX.

In the present invention, since the correspondence between the fixed station and the PBX is one-to-one or many-to-one, the number corresponding to the fixed station is actually the number corresponding to the PBX.

4 is a flow chart of called signaling of a wired terminal under the jurisdiction of the PBX according to the present invention, and the specific steps are as follows:

Step 400: The calling terminal initiates a call by the LE connected thereto. The call carries a number corresponding to the fixed station that is connected to the PBX of the called terminal.

Steps 401 - 402, the LE connects the call to the BTS through the RAC.

Step 403: The BTS connects the call to the fixed PBX connection that governs the called terminal. Step 404: The fixed station connects the call to the PBX that governs the called terminal.

Step 405: The PBX sequentially plays a sound to the calling terminal through the fixed station, the BTS, the RAC, and the LE connected thereto, and notifies the calling terminal to send the number corresponding to the called terminal.

Steps 406 ~ 407, the PBX sends the calling terminal uplink dual tone multi-frequency system (DTMF) burst signaling to the RAC through the air interface, and the RAC sends the calling terminal uplink DTMF or the frequency shift electrode (FSK) to the LE.

Step 408: The calling terminal sends the number corresponding to the called terminal to the LE.

Step 409: The LE sends the number corresponding to the called terminal to the RAC through the band, that is, after detecting the downlink DTMF or FSK signal, the RAC parses the number corresponding to the called terminal, and filters out the DTMF or FSK signal in the band. Preventing in-band signals from being sent to the fixed station results in repetition of in-band signaling. .

Steps 410 to 411, the RAC sends the number corresponding to the called terminal to the fixed station through the DTMF burst signaling of the air interface, and the fixed station converts the received DTMF burst signaling into an in-band DTMF signal and sends the signal to the PBXo.

The number corresponding to the called terminal is sent through the DTMF burst signaling air interface, and is not directly transmitted through the BTS. This is because the in-band signal is difficult to detect by the voice codec and the air interface, and the air interface signaling is reliable. Guaranteed.

Of course, the number corresponding to the called terminal can also be transmitted to the fixed station through the user plane of the air interface, that is, the voice through the BTS, and the fixed station detects the DTMF signal after receiving the sound, but this method is easy to cause distortion. This causes loss of DTMF signals.

Step 412: After detecting the in-band DTMF signal, the PBX parses the number corresponding to the called terminal according to the in-band DTMF signal, and connects the called terminal under the jurisdiction to complete the communication connection between the calling terminal and the called terminal.

FIG. 5 is a schematic diagram of Embodiment 2 of a system for accessing a wireless communication network of a PBX according to the present invention; Assuming that the wireless communication network is a CDMA network, the system includes: a PBX 200, more than one fixed station 501, and a network side 102 of the CDMA network. The system is basically the same as the system shown in FIG. 2 except that the PBX 200 accesses the telephone line interfaces of more than one fixed station 501 by wired telephone lines through its own telephone line interface. In this way, when the wired terminal under the jurisdiction of the PBX200 has occupied a fixed station to communicate with the CMDA network, other wired terminals under the jurisdiction of the PBX200 can also occupy other fixed stations connected to the PBX200 to communicate with the CMDA network.

The number of fixed stations that the PBX can connect depends on the number of external lines supported by the PBX, that is, the number of standard RJ-11 interfaces of the PBX. The standard RJ-11 interface of PBX is a group of relays for PBX. When the wired terminal under the jurisdiction of PBX communicates with the wireless communication network, PBX can detect the occupancy of RJ-11 interface and automatically select one according to the existing technology. The occupied RJ-11 interface and the fixed station connected through the RJ-II interface communicate with the wireless communication network.

The wireless communication network can set a small cross-selection function for the number corresponding to a group of fixed stations accessed by the PBX. The small cross-connect function means that after receiving the call, the wireless communication network can automatically select an idle fixed station to connect the call to the PBX according to the idle condition of a group of fixed stations accessed by the PBX. In addition to the numbers set by the wireless communication network, the set of fixed stations is also provided with a uniform number. After receiving the call carrying the unified number, the wireless communication network selects an idle fixed station with the unified number to connect to the PBX to perform call connection according to a preset selection rule, and then connects the call to the PBX by the idle fixed station. This unified number can be called a small intersection indicator. Of course, the wireless communication network can realize the small cross-connect function only when receiving a call carrying a small cross-reference number.

The wireless communication network is configured with a small number of indications as follows: First, the wireless communication network uses the number corresponding to one of the fixed stations of the PBX to be used as a small handover indicator, and the number corresponding to the other fixed stations can be They are respectively different non-introduction numbers; second, the wireless communication network configures a number of fixed stations that the PBX accesses as a small intersection indicator. The number and the number corresponding to the fixed station of the group are different, and the numbers corresponding to the fixed station of the group can be used as different small non-indicating numbers.

In the present invention, when the wireless communication network receives the call carrying the small intersection non-reference number, the small cross-link selection function cannot be implemented, and the call is directly connected to the fixed station corresponding to the small intersection non-reference number.

All wired terminals under the jurisdiction of a PBX of a fixed set of stations with small interleaving indications have only one number for the wireless communication network, and the wireless communication system implements functions such as calling display and charging bills. When using this number.

The advantages of setting up the small cross-connect function in the wireless communication network are as follows: First, the calling terminal that sends the call only needs to remember the small handoff indicator; Second, the fixed set of stations with the small hand-over sign can realize the load sharing. Third, as long as one of the fixed stations of the fixed set with small cross-references is idle, the call can be connected to improve the call completion rate.

When the wireless communication network implements the wireless PBX function, it also charges the wired terminal under the jurisdiction of the PBX. For the charging of the wired terminal under the jurisdiction of the PBX, there are several ways:

1. According to the number of PBX access fixed stations, that is, no matter how many wired terminals are controlled by the PBX, for the wireless communication network, the communication is performed through the fixed station, so directly according to each fixed station is a terminal. Billing. Considering that the PBX governs multiple wired terminals, the data volume of the PBX is larger than that of the ordinary terminal, and the wireless communication network can separately set the rates of the fixed stations that the PBX accesses.

The characteristics of the charging mode are as follows: The charging mode is simple, and there is no difference between the charging mode and the wireless communication network, and there is no need to increase the charging difficulty of the wireless communication network; the disadvantages of the charging mode are: the cable that cannot be controlled by the PBX The terminal is billed separately.

2. Realize billing through intelligent services. Each wired terminal under the jurisdiction of the PBX uses a card number to distinguish between separate billing, that is, an operation mode similar to the 201 campus card. The charging method is characterized in that each wired terminal under the jurisdiction of the PBX can be distinguished and separately charged. The charging method adopts a pre-paid, post-use manner, and a user pays credit for each wired terminal under the jurisdiction of the PBX. Bad place, more appropriate. However, this charging method requires the addition of intelligent network support in the wireless communication network.

3. The method of charging according to the number of PBX access fixed stations and the charging of each wired terminal under the jurisdiction of the PBX. The wireless communication network calculates the cost of the PBX according to the number of PBX access fixed stations. Each wired terminal under the jurisdiction of the PBX is charged by the PBX, and the PBX outputs the bill.

The charging mode is characterized by: The wireless communication network implements the PBX i fee, and the charging of each wired terminal under the jurisdiction of the PBX zone.

The invention adopts the existing PBX to access a fixed station in the wireless communication network, so that the terminal under the jurisdiction of the PBX accesses the wireless communication network, and realizes communication between the wired terminal and the wireless communication network under the jurisdiction of the PBX.

The above described specific embodiments of the present invention are described in detail, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A system for a user PBX to access a wireless communication network, the system comprising a network side of a wireless communication network, the system further comprising: a PBX and a fixed station of a wireless communication network wiredly connected to the PBX, The fixed station wirelessly accesses the network side of the wireless communication network, and the PBX communicates with the network side of the wireless communication network through the fixed station.

2. The system of claim 1 wherein said fixed station is a T-type terminal or a P-type terminal in a wireless communication network.

The system according to claim 1, wherein the number of the fixed stations is one or more, and the PBX accesses the fixed station by using a wired telephone line through its RJ-11 interface. Line interface.

4. The system according to claim 1, wherein the system further comprises one or more wired terminals under the jurisdiction of the PBX, wherein the wired terminal is wired to the PBX, and sequentially passes through the PBX and the fixed station. The network side of the wireless communication network communicates.

A method for accessing a wireless communication network by using a PBX, wherein the PBX is wired to a fixed station in the wireless communication network, the method further comprising:

When a wired terminal under the jurisdiction of the PBX initiates a call, the wired terminal under the jurisdiction of the PBX initiates a call carrying the called number to the fixed station connected to the PBX through the PBX, and the fixed station connects to the call through the network side of the wireless communication network according to the called number. The called terminal establishes communication between the wired terminal under the jurisdiction of the PBX and the called terminal;

When the wired terminal under the jurisdiction of the PBX is called, the network side of the wireless communication network receives the call from the calling terminal and carries the number corresponding to the fixed station, and then connects the call to the fixed station according to the number corresponding to the fixed station. The call is connected to the PBX connected thereto, and the PBX obtains the number corresponding to the wired terminal called by the calling terminal through the fixed station, and then connects to the wired terminal under the jurisdiction of the PBX to establish the calling terminal and the PBX. Have Line terminal communication.

The method according to claim 5, wherein the process of obtaining the number corresponding to the wired terminal called by the calling terminal by the fixed station is:

The method according to claim 5, wherein the number of the fixed stations is one or more.

The method according to claim 7, wherein when the number of the fixed stations is one or more, the one or more fixed stations connected to the PBX correspond to the same small intersection indicator, the small intersection The reference number is a number corresponding to one of the fixed stations of the one or more fixed stations connected to the PBX, or is a set number, and the number set corresponding to the one or more fixed stations connected to the PBX is different. .

The method according to claim 5, wherein when the number of the fixed stations is more than one, the wireless communication network connects the call to the fixed station according to the number corresponding to the fixed station:

The wireless communication network selects one of the currently idle fixed stations of one or more fixed stations connected to the PBX according to a preset routing rule, and connects the call to the currently idle fixed station.

The method according to claim 5, wherein when the wired terminal under the control of the PBX initiates a call or is called, the method further includes:

Or set the intelligent network function in the wireless communication network, and separately charge the wired terminals under the jurisdiction of the PBX;

Or the wireless communication network charges the fixed station connected to the PBX, and the PBX Separate billing for the wired terminals under the jurisdiction.

The method according to claim 5, wherein the fixed station is a T-type terminal or a P-type terminal in a wireless communication network.