KR100434266B1 - Calling Identify Delivery method in Wireless Local Loop terminal - Google Patents

Abstract

The present invention is to provide a method for displaying an outgoing telephone number of a wireless subscriber network terminal that can display a telephone number of a calling terminal on a display device of a called terminal regardless of a local area exchange (LE) different from country to country. Receiving source terminal identification information (CID) provided from the local area exchange in the base station / base station controller (BTS / BSC) in the frequency shift key (FSK) method; the base station / base station controller (BTS / BSC) at the destination terminal Receiving and displaying the calling party terminal identification information from a vocoder, wherein the called terminal receives the calling terminal terminal identification information in different ways according to the state of the called terminal. The subscriber's telephone number indication (CID) is enabled in the wireless subscriber network interworking with.

Description

Calling identification delivery method in wireless subscriber network terminal

The present invention relates to an outgoing telephone number display, and more particularly, to an outgoing telephone number display method suitable for displaying a telephone number of a calling terminal on a display device of a called terminal regardless of a local exchange different from country to country. It is about.

Calling Identity Delivery (CID), a calling subscriber's telephone number display function in a CDMA mobile communication system, is a signal message transmitted from a mobile switching center (MSC) to a call control processor (CCP) of a base station controller (BSC). It is implemented to provide the calling party subscriber identification information to the called party subscriber, and is provided only when the calling party subscriber uses the same mobile communication service network as the called party subscriber.

The subscriber identification information transmitted using the signaling message from the mobile switching center is defined in the IS-95 radio standard on the selector / vocoder card (SVC) via the call control processor (CCP) and the selector bank processor (SBP). The message is sent to the called party's terminal.

The calling party identification information provided to the called party subscriber is limited to the calling subscribers who are subscribed to the same mobile communication service network in the caller ID number (CID) function currently implemented in the CDMA mobile communication system.

Therefore, the subscriber identification information subscribed to the general fixed line telephone network subscriber or other mobile communication service network could not be provided.

Therefore, there is no way to provide outgoing subscriber telephone number display function (CID) service regardless of the service network to which outgoing subscribers are subscribed while interworking with local exchanges different from country to country.

An object of the present invention has been made in view of the above-mentioned problems of the prior art, an outgoing telephone number display method that can display the calling party's telephone number on the display device of the called terminal regardless of regional exchanges different from country to country. It is to provide.

According to a feature of the present invention for achieving the above object, the receiving terminal identification information (CID) provided by the originating local area exchange in the base station / base station controller (BTS / BSC) received by the FSK (Frequency Shift Key) method Receiving and displaying the calling terminal identification information from the vocoder of the base station / base station controller (BTS / BSC) at the called terminal, wherein the called terminal is the calling terminal identification information of the called terminal; If the called terminal is in the on-hook state, the vocoder of the base station / base station controller loads the identification information of the calling terminal into an alert with information message to the called terminal. And if the called terminal is off-hook, the calling local area exchange will exchange the base station / base. Transmitting the alert signal to the sequence controller, and carries a base station / base station controller the calling terminal identification information to the flash Weed information message is characterized in that transmission to the destination terminal.

Preferably, when the alert sequence signal is transmitted to the vocoder of the called terminal, the vocoder bypasses the subscriber alert sequence (SAS) signal to the called terminal according to the type of the alert sequence signal, and the CPE alert sequence. The signal may include transmitting an acknowledgment message using a dual tone multi-frequency (DTMF) tone to the local exchange, and detecting the originating terminal identification number transmitted from the terminating end regional exchange receiving the acknowledgment message. It is made to include more.

According to the present invention as described above, there is an advantage that can display on the terminal outgoing subscriber identification information (CID) of the local exchange different from country to country.

1 is a flowchart illustrating a method for displaying a phone number when a terminal is on hook according to the present invention;

2 is a flowchart illustrating a method for displaying a phone number when a terminal is off hook state according to the present invention;

* Description of the symbols for the main parts of the drawings *

1 terminal 2 base station / base station controller

3: access network 4: local exchange

Hereinafter, a configuration and an operation according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

In the method of displaying a telephone number of a terminal according to the present invention, when the local exchange (LE) of the calling terminal transmits subscriber identification information of the calling terminal to the terminating regional exchange (LE) of the called terminal through CCS7 signaling. The terminating area exchange (LE) of the terminating terminal receives the subscriber identification information of the originating terminal in an on-hook state and an off-hook state by using a frequency shift keying (FSK) signal. Send to the terminal.

1 is a flowchart illustrating a method for displaying a phone number in an on-hook state of a terminal according to the present invention.

In the on-hook state of the terminal according to the present invention, a method for displaying a telephone number includes a base station (MS) 1, a base station / base station controller 2 for providing a wireless communication service to the called terminal 1; Terminating end area switchboard (4) in a communication system (e.g., Wireless Local Loop (WLL)) consisting of a connection network (3) connecting a local area switch (4) and a base station / base station controller (2). Transmits the subscriber identification information by the FSK signal, the FSC signal is detected by the vocoder (DSP) of the selector vocoder card (SVC) of the base station / base station controller (2), and the selector vocoder card (SVC) is detected. The information is carried in an AlertWith Information Message defined in the IS-95 radio standard and transmitted to the terminal 1, which is the called party's terminal. Then, the receiving subscriber terminal 1 receiving the message displays the calling party identification information (telephone number) on the display device (LCD) of the terminal 1.

First, the local exchange 4 notifies the calling party identification information by transmitting an establishment signal for establishing an initial ring to a V5.2 control processor (VCP) of the access network 3 (A1). .

Then, the VCP of the access network 3 transmits the corresponding signal to the base station subsystem (BSS) of the base station / base station controller 2 to inform that there is caller identification information (B1).

At this time, when the selector vocoder card SVC of the base station / base station controller 2 receives the corresponding signal, the selector vocoder card initializes the vocoder, and when the next Tx interrupt occurs, a command packet in which a Tx task is defined. (Command Packet) is sent to the vocoder to operate in a state that can detect the FSK signal (hereinafter referred to as the FSK detection state).

When the Tx task normally receives a response packet to a command packet transmitted to a vocoder, the Tx task transmits the corresponding signal to a higher processor so that the local exchange 4 transmits the FSK signal. If an error occurs in the received response packet, the signal is sent to the upper processor and the processing is stopped.

When the VCP of the access network 3 receives an acknowledgment message for the FSK indication signal from the BSS of the base station / base station controller 2, the VCP of the access network 3 establishes a start acknowledgment message to the local exchange 4. The signal is transmitted (A2), and the end of pulse signal (A3) is transmitted as an acknowledgment (Ack) for the initial ring (A3).

When the vocoder operates in the FSK detection state, the Tx task transmits a defined command packet instructing the FSK signal detection to the vocoder every 20ms interrupt. When the response packet is normally received, the subscriber ID information is extracted and stored in a temporary buffer (A4). If an error occurs in the response packet, the command packet defined by the vocoder is transmitted to stop the operation of the FSK detection state, and the corresponding signal is transmitted to the upper processor and processed. Stop.

However, when a response packet is normally received and information reception is completed, the Tx task transmits a command packet defined by a vocoder to stop the operation of the FSK detection state. The signal is sent to the upper processor to indicate that the reception of the FSK signal is completed.

The local exchange LE initiates call setup by transmitting a cadence ring to the VCP of the access network 3 after a certain time after transmitting the FSK signal (A5). In addition, the subscriber identification information stored in the temporary buffer of the selector vocoder card (SVC) is in the Alert With Information Message transmitted to the called terminal after completion of the service negotiation procedure. It is carried in a Calling Party Information field and transmitted (C1).

2 is a flowchart illustrating a method for displaying a phone number when off-hook according to the present invention.

In the off-hook telephone number display method according to the present invention, for example, when subscriber A registered in the CID service is already in communication with subscriber B, and subscriber C, a third subscriber, calls subscriber A, The terminating local area exchange first shields the voice channel of the large station and transmits an Alert Sequence signal to subscriber A in a call. The Vocoder bypasses the Subscriber Alert Sequence (SAS) signal according to the Alert Sequence signal and uses Dual Tone Multi Frequency (DTMF) Tone when it detects a CAS (CPE Alert Sequence) signal. Send an acknowledgment (ACK) message to the local exchange and prepare to receive the FSK signal.

When the local exchange (LE) receiving the acknowledgment (ACK) message from the vocoder transmits the calling party identification information through the FSK signaling method, the vocoder detects the FSK signal and the selector vocoder card SVC detects the detected subscriber. The identification information of C is loaded into a Flash With Information Message and transmitted to the terminal of subscriber A. Upon receiving the message, the subscriber A terminal displays the identification information of the subscriber C.

That is, when subscriber A is currently talking to subscriber B, and subscriber C, a third subscriber, calls subscriber A again, the destination local area exchange (LE) 4 first establishes the voice channel of subscriber A. It shields and transmits an Alert Sequence signal to the subscriber A's terminal 1. At this time, the alert sequence signal is composed of a Subscriber Alert Sequence (SAS) and a CPE Alert Sequence (CAS) CAL Alert Sequence (CAS) signal. The SAS is transmitted to the terminal 1 and the CAS is a base station / base station controller. Is sent to (2).

At this time, the SAS signal transmitted by the local exchange (LE) 4 is bypassed by the vocoder of the base station / base station controller 2 and transmitted to the terminal 1 of the subscriber A (A1).

When the vocoder of the base station / base station controller 2 detects the CAS signal, the vocoder inputs a specific field in the response packet to the command packet received at the Tx interrupt from the Tx task. 1 indicates that the CAS signal is detected by transmitting to the Tx task (A2).

The Tx task is to generate a DTMF tone (Dual Tone Multi Frequency Tone) to the vocoder of the base station / base station controller (2) to the local exchange (LE) (4) acknowledgment (ACK) A message is transmitted (A3), and a defined command packet is transmitted to a vocoder of the base station / base station controller 2 to operate in the FSK detection state. At this time, if an error occurs in the response packet for the command packet transmitted to the vocoder, the command packet defined by the vocoder is transmitted to detect the FSK. After stopping the operation of the existing voice call.

Here, when the vocoder operates in the FSK detection state, the Tx task transmits a defined command packet instructing the FSK signal detection to the vocoder every 20ms interrupt and responds thereto. When the packet is normally received, the subscriber identification information is extracted and stored in the temporary buffer (A4). If an error occurs in the response packet, the command defined by the vocoder is generated. Transmit a packet (Command Packet) to stop the operation of the FSK detection state and processes the existing voice call.

In addition, when a response packet is normally received and information reception is completed, the Tx task transmits a command packet defined by a vocoder to stop the operation of the FSK detection state. The subscriber ID information stored in the temporary buffer is processed in the Calling Party Information field in the Flash With Information Message and transmitted to the subscriber A terminal. C1).

As described above, the present invention has the effect of displaying the telephone number of the calling party subscriber in the called party's terminal of the wireless subscriber network (WLL) linked to different regional exchanges.

Claims (4)

Receiving, at a base station / base station controller (BTS / BSC), an FSK (Frequency Shift Key) method provided by an originating terminal identification information (CID) provided by an originating local area exchange; Receiving and displaying the calling party terminal identification information from the vocoder of the base station / base station controller (BTS / BSC) at the called terminal; The method of claim 1, wherein the called terminal receives the calling terminal identification information in a different manner according to the state of the called terminal. The terminal of claim 1, wherein the called terminal is in an on-hook state. A vocoder of a base station / base station controller transmits identification information of a calling terminal to an alert with information message and transmits it to the called terminal. The terminal of claim 1, wherein the called terminal is in an off hook state. The calling local area exchange sends the alert sequence signal to the base station / base station controller, The base station / base station controller transmits the calling party identification information in a flash with information message and transmits it to the called party terminal. 4. The method of claim 3, wherein sending an alert sequence signal to a base station / base station controller The vocoder of the base station / base station controller bypasses the subscriber alert sequence (SAS) signal to the called terminal according to the type of the alert sequence signal, and the CPE alert sequence signal passes the dual tone multiple frequency (DTMF) to the local exchange. Sending a confirmation message using tones, And detecting the calling party terminal identification number transmitted from the called terminating end area exchange receiving the confirmation message.