KR100248611B1 - Method for receiving asynchronous data of personal communication exchange - Google Patents

Abstract

The present invention has a sub-system for processing asynchronous data in a personal communication system, and a method for receiving asynchronous data in a personal communication system in which a personal communication subscriber can receive asynchronous data transmitted from the PSTN side through the personal communication system. In the personal communication switching system that is capable of performing a call processing service for outgoing or incoming calls from the personal communication subscriber 10, the PSTN (18) to the personal communication subscriber (10) for asynchronous data When an incoming call is requested, the PCX 14 establishes a route to the IWF 16 and then allocates a traffic channel through the BSS 12 to call the personal subscriber 10, and the PCX 14 When the personal communication subscriber 10 responds, after receiving the asynchronous data from the PSTN 18 using a specific protocol, the asynchronous data is synchronized in the IWF 16. After converting the data to the personal communication subscriber 10 is characterized in that it consists of a second step.

Description

Receiving method for asynchronous data in personal communication system

The present invention relates to a method for receiving asynchronous data in a personal communication system, and more particularly, includes a subsystem for processing asynchronous data in a personal communication system and personalizes asynchronous data transmitted from the PSTN side through the personal communication system. The present invention relates to a method for receiving asynchronous data in a personal communication system that enables a subscriber to receive communication.

With the rapid development of communication technology, individuals who have been able to perform telephone exchange operations for mobile subscribers, while the exchanges that have performed telephone exchange operations for wireline subscribers, expand their coverage to mobile subscribers. The development of the Personal Communication Exchange (PCX) has been actively developed. According to such a personal communication exchange, a personal communication subscriber accommodated in the personal communication exchange requires a call connection with a wired subscriber. When a personal communication subscriber requests a call connection with a mobile subscriber, and when a wired subscriber or mobile subscriber requests a call connection with a personal communication subscriber accommodated in the corresponding personal communication exchange, a telephone exchange operation is performed accordingly. It performs call processing service for subscriber.

However, since the receiving function for asynchronous data has not been developed in the personal communication system, the personal communication subscriber accommodated in the personal communication switch has a PSTN modem or MT0 (data terminal having a non-ISDN user interface (TE2). Asynchronous data (e.g., FAX data from personal communications subscribers that accept both Terminal Equipment) and X or V Series interface modems (MT2; Mobile Termination) that provide a Non-ISDN Rm interface (MS-BSS). I could not receive text data).

Accordingly, the present invention has been made in view of the above circumstances, and the personal communication subscriber can receive asynchronous data transmitted from the PSTN side through the personal communication system with a subsystem for processing asynchronous data. The purpose is to provide a method for receiving asynchronous data in a personal communication system.

According to an embodiment of the present invention for realizing the above object, in a personal communication exchange system that can perform a call processing service for an outgoing or incoming call from a personal communication subscriber, asynchronous from the PSTN to the personal communication subscriber When an incoming call for data is requested, the first step of PCX assigning a traffic channel through BSS and calling the personal communication subscriber after establishing a path to IWF, and using the specific protocol when the PCX responds to the personal communication subscriber There is provided a method for receiving asynchronous data in a personal communication system comprising a second step of receiving the asynchronous data from the PSTN and then converting the asynchronous data from the IWF to the synchronous data and then transmitting it to the personal subscriber.

According to the present invention consisting of the above steps, when the PSTN modem or MS0 attempts to make a call to the personal communication subscriber accommodated in the personal communication system, the corresponding personal communication subscriber requests the asynchronous data transmitted from the PSTN modem and the MS0. It is possible to transmit to the personal communication subscriber.

1 is a view showing a schematic configuration of a personal communication system to which the present invention is applied;

2 is a flowchart illustrating a method for receiving asynchronous data in a personal communication system according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: MS, 12: BSS,

14: PCX, 16: IWF,

18: PSTN.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a conceptual diagram of a personal communication system to which the present invention is applied, wherein reference numeral 10 denotes a personal communication subscriber who has mobility and is able to transmit / receive synchronization data for a voice call. 12 receives the synchronous data transmitted from the personal communication subscriber 10 through the personal communication subscriber and the wireless interface UmI / F, and transmits the received synchronous data to the personal communication exchange 14. In addition, as a BSS for transmitting the synchronous data transmitted from the personal communication switch 14 to the personal communication subscriber 10 of the called party, the BSS (Base Station System) 12 respectively transmits a plurality of subscriber stations and call processing data. It manages the normal base station function and each of several base stations that transmit / receive and perform wireless signal transmission / reception and communication protocol conversion, encryption / decryption, etc. to each subscriber station. And it performs the function of a conventional base station controller for performing a function regarding the determination of the allocation control and handoff (Handoff) of a communication channel for the individual subscribers.

Further, reference numeral 14 denotes an IWF (IWF) when the incoming call is determined to be asynchronous data when the incoming call to the personal communication subscriber 10 is requested from the PSTN 18 through the BSS 12 and the A interface. 16) and a personal communication exchange (PCX) which sets a path so that asynchronous data input from the PSTN 18 is converted into synchronous data in the IWF 16 and transmitted to the personal communication subscriber 10 on the called side. (PC) 14, the PCX 14 typically performs outgoing call processing for outgoing calls from mobile subscribers in the home country and incoming call processing for calls coming from other exchanges or calls coming from the local exchange.

In FIG. 1, reference numeral 16 denotes an IWF (InterWorking Function) which is connected to the PCX 14 and the L interface and converts asynchronous data input through the PSTN path into synchronous data and applies the same to the PCX 14. to be.

Reference numeral 18 denotes a packet switching telephone network (PSTN), which is a telephone network which is connected via the PCX 14 and the Ai interface to enable packet-by-packet transmission between the data transmission / reception side and the reception side.

Next, a method for receiving asynchronous data in a personal communication system according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG. 2.

First, when an IAM message is sent to the PCX 14 indicating that an asynchronous data call from the PSTN 18 to the personal communication subscription has been attempted (step 30), the PCX 14 communicates with the IWF 31. After establishing the path (step 31), the BSS 12 transmits a paging request signal having information about the terminal and the cell to notify the BSS 12 that an incoming call to the personal communication subscriber has been attempted (step 32). ).

In response, the BSS 12 transmits the paging signal to the MS 10, which is the called party, through the paging channel with the address information of the personal communication subscriber (step 33), so that the MS 10 transmits the BSS 12 to the BSS 12. When the paging response signal is transmitted to the PCS 14, the BSS 12 transmits a paging response signal to the PCX 14 (step 34).

Subsequently, when the PCX 14 transmits a connection approval message to the BSS 12 to notify that the SCCP connection is established, the PCX 14 transmits a setup signal to the BSS 12 to set an incoming call (step 35). The BSS 12 transmits a call approval signal to the PCX 14 after setting the incoming call and notifies that the incoming call is set.

Subsequently, when the PCX 14 transmits an allocation request signal to the BSS 12 to notify that traffic channel allocation is necessary (step 36), the BSS 12 allocates a traffic channel in response to the allocation request signal. Then, an assignment completion signal is transmitted to the PCX 14 to report that the required traffic channel has been allocated (step 37).

After performing the above operation, the BSS 12 sends an alert signal to the PCX 14 to report that the called party is being alerted (step 38), and the PCX 14 sends the alert signal to the PSTN ( 18) to the side.

If the MS 10 responds in such a state (step 39), the MS 10 sends an incoming response signal to the BSS 12 (step 40), and the BSS 12 sends the corresponding incoming response signal. Transmit to PCX 14 so that the incoming call response signal is reported to PSTN 18 (step 41).

On the other hand, when the PSTN 18 transmits the Connect Ack signal to the PCX 14 and reports that the incoming response signal is received, the PCX 14 transmits the Connect Ack signal to the base station controller 12. (Step 42).

When a path between each component is established through the above-described process, asynchronous data input from the PSTN 18 is received through an end-to-end protocol (step 43).

That is, asynchronous data input from the PSTN 18 is applied to the IWF 16 by the PCX 14 and converted into synchronous data at the IWF 16, and then the BSS is transmitted through the PCX 14. As applied to (12), the BSS 12 converts the synchronous data into a radio signal and transmits it to the MS 10 so that a call by asynchronous data input from the PSTN 18 is transmitted to the MS 10. Receive

As described above, according to a method for receiving asynchronous data in a personal communication system according to an embodiment of the present invention, when a PSTN modem or MS0 attempts to make a call to a personal communication subscriber housed in a personal communication system, the corresponding personal communication subscriber Converts asynchronous data transmitted from the PSTN modem and MS0 into synchronous data, and then transmits the corresponding synchronous data to the corresponding personal communication subscriber, thereby receiving a call by the asynchronous data transmitted from the PSTN modem and MS0. Can be received.

Claims (3)

In the personal communication exchange system that can perform a call processing service for outgoing or incoming calls from the personal communication subscriber 10, When an incoming call for asynchronous data is requested from the PSTN 18 to the personal communication subscriber 10, the PCX 14 establishes a route to the IWF 16 and then allocates a traffic channel through the BSS 12 to the personal communication. A first step of calling the subscriber 10, When the personal communication subscriber 10 responds, the PCX 14 receives the asynchronous data from the PSTN 18 using a specific protocol, and then converts the asynchronous data into the synchronous data in the IWF 16. A method for receiving asynchronous data in a personal communication system, comprising a second step transmitted to a personal communication subscriber (10). The paging request signal from the PCX 14 is transmitted through the paging channel when the incoming call for the asynchronous data is requested from the PSTN 18 to the personal communication subscriber 10. Transmitting the paging response from the personal communication subscriber 10 to the PCX 14, and setting the incoming call to the BSS 10; And receiving a traffic channel through the BSS (12) and then transmitting an Alert signal to the BSS (12). The method of claim 1, wherein the specific protocol in the second step is an end-to-end protocol.

Images