KR100263070B1 - How to Form Currency in Electronic Switching System - Google Patents

Abstract

PURPOSE: A method for forming a speech path in an RANS(Remote Access Network Subsystem) is provided to solve overload of a space switch and a problem on establishment of the RANS. CONSTITUTION: A trunk line is correspondingly connected one to one between an RANS(Remote Access Network Subsystem)(100) and an ANS(Access Network Subsystem)(200) to make the RANS be operated as a subsystem of the ANS. A speech path is formed to make a call inside the RANS and a call between the RANS and the ANS be directly connected to a time switch, without connecting to a space switch. The trunk line is allotted to form the speech path between the RANS and the ANS. The speech path is formed by allotting 'r_ts_no'(102) to the RANS and 'h_ts_no'(202) to the ANS, by connecting 'cg_ts'(104) and 'cd_ts'(204) of each time slot of a subscriber to the RANS and to the ANS.

Description

How to Form Currency in Electronic Switching System

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a time division electronic exchange system such as TDX-100, and more particularly, to a method of forming a currency path in an electronic exchange.

In general, in an electronic switching system, a remote access network subsystem (RANS) is a system for accommodating remote subscribers and is matched with a host access network subsystem (ANS) through a relay line link. The RANS accommodates all the functions of the host and is mainly installed in a place far from the home country.

In the related art, the RANS is directly connected to a space switch, so that the RANS operates as an independent system like general main processor MPs. Therefore, since it is directly connected to the space switch, it has a large influence on the space switch overload, and it is difficult to flexibly cope with the expansion of the RANS, which is a factor that degrades the performance of the exchange system.

Therefore, as described above, there is a problem in that there is a difficulty in overloading and expanding the space switch.

Accordingly, it is an object of the present invention to provide an improved method which can solve the above-mentioned conventional problems.

Another object of the present invention is to provide a method of forming a call path in an electronic switchboard that can solve the problem of overload and expansion of a space switch.

In order to achieve the above object, the present invention, in order to solve the problem of overload and expansion caused by the RANS is connected to the space switch in the conventional system, between the RANS and the ANS so that the RANS is operated as a subordinate system of the ANS The relay line is connected in a one-to-one correspondence, and a call path is formed to be directly connected to the time switch without connecting the calls between RANS and the calls between RANS and ANS with a space switch, reducing the load of the space switch and RANS in the MP. It is characterized by the flexibility of the system. To do this, the relay line between RANS-ANS (HOST) is 1: 1.

Other objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings.

1 is a system diagram showing a call processing path from RANS to HOST applied to the present invention

2 through 4 are flow charts of communication path data according to an embodiment of the present invention.

5 is a format diagram of a currency related database to which the present invention is applied;

6 is a system diagram showing a call processing path to another call showing an application of the present invention.

In the following, a preferred embodiment of the present invention for the method of forming a currency path in the electronic exchanger is described in detail.

In a conventional call, a time switch is connected to a call between the same ANS subscribers, and a call is connected to a space switch to connect a call between different ANS subscribers. In this embodiment, however, as shown in FIG. 1, the RANS 100 is subordinate to the ANS 200 as a subsystem, and a relay line is allocated to configure a call between the RANS and the ANS. ANS (HOST) is allocated to h_ts_no 202 and connected to each of the subscriber time slots cg_ts 104, cd_ts 204 to configure a call path. The RANS-ANS call path configuration is configured by assigning and connecting an E1 relay line link between the RANS and the ANS (HOST). To this end, RANS allocates a time slot for a link channel, and in RANS and ANS, the RANS and ANS configure a channel by connecting a time slot to a time slot for a link channel. By using the relay line link channel between the ANS and the RANS, the call channel is connected to perform a call between the RANS subscriber, the host subscriber, and another host subscriber through the connected link. Connect to each other.

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

1 is a system diagram showing a call processing path from a RANS to HOST applied to the present invention, Figures 2 to 4 are flow charts of the call path data according to an embodiment of the present invention. 5 is a format diagram of a currency related database to which the present invention is applied. In Fig. 5, reference numeral 50 denotes a data configuration table for relay line assignment between RANS and ANS (HOST). 51 is an area for distinguishing whether there is an idle link channel, 52 is a time slot area for connecting a link channel and a subscriber timeslot in RANS, and 53 is a time slot area for connecting a link channel and a subscriber timeslot in ANS. . Reference numeral 54 is a relay line channel region between RANS and ANS (HOST). Reference numeral 60 is a data configuration table for relay line management between RANS and ANS (HOST). 61 is a pointer area indicating an allocated link channel, 62 is an area indicating whether a link channel is busy, and 63 is an area for managing idle channels in a double linked list. Reference numeral 64 denotes an area indicating the number of idle link channels managed in the list.

First, referring to FIG. 1, when the RANS 100 subscriber calls and the ANS (HOST) subscriber 200 receives the call, step I of FIG. 2 is performed. The above step is performed by the RANS subscriber who hooks off, generates an originating process, receives a called party number, and requests translation of the number to NTR. Meanwhile, each step of FIG. 4 is performed correspondingly. In this way, when the incoming call notification (CdSubsSzRP) is received from the incoming process ANS (HOST) subscriber (hereinafter referred to as HOST subscriber) generated by NTR (step 1 in FIG. 2 and step a in FIG. 4), RANS is a relay line link channel and a RANS. R_ts_no is assigned to _ and h_ts_no is assigned to HOST (step 2 of FIG. 2). Since this is an intra call, an ij (intra junct) channel for connecting r_ts_no and cg_ts of RANS is allocated and then connected to cg_ts and r_ts_no. (Step 3 of FIG. 2). After the ij channel allocation and connection is completed, the channels allocated for r_ts_no are connected to the time switch (4), and the HOST side requests the switch connection of h_ts_no (RANS_SwConnRQ) (5). When the RANS_SwConnRQ is received from the HOST side, an ij channel is allocated to h_ts_no and connected to a time switch, thereby making a relay line assignment and a relay line time slot allocation and connection for connecting the subscriber time slot. When the originating process receives a h_ts_no indicating that the ij channel is connected (6), the incoming call informs the caller that the switch on the calling end is complete (7) connects a time switch to cg_ts (8) and a time switch connection to h_ts _no (9). On the other hand, the called party receiving the switch connection notification (SwConn) from the originating subscriber (b) uses the ij channel already assigned by h_ts_no for the subscriber time slot, as opposed to h_ts_no, tx_ch uses rx_ij_no and rx_ch uses tx_in_no. c). Then, when the called subscriber sends a ring back tone source to tx_ch of cd_ts (d), the calling subscriber receives the ring back tone along the connected call path, and the called subscriber sends a ring connection request signal (RingConnRQ_CI) to the device. By sending it down to the processor, it rings the called party. When the called party hooks off the receiver while the ring is ringing, the called party MP receives the HoffRP from the device processor (e) and (e) transfers the ringback tone by connecting a time switch to cd_ts and completes the call. After the connection (f) to the call is notified that the incoming call has been answered (g) the calling subscriber is in a call state from the moment it receives (10). If the recovery condition among the subscribers in the call is the originating recovery condition, the originating party receives the Hon1RP when the originating hooks on first (11). Subsequently, CgRe1RP is transmitted to the called party indicating that the call has been released (12). The calling party continuously releases the time switch connection to cg_ts, releases the allocated ij channel and link channel, and releases time slots (r_ts_no and h_ts_no) allocated to the relay line link (13). Subsequently, when Hon2RP is received, the process is terminated after performing the work to terminate the process. On the other hand, the called party receiving CgRe1RP from the calling party (h) ends the process upon hooking the called party hook.

6 is a system diagram showing a call processing path to another call showing an application of the present invention, and shows a call processing path between a RANS and another HOST. Of course, the present invention can be applied not only to FIG. 6 but also to call processing between RANS, call processing between a host and RANS, or call processing between other RANS and RANS.

As described above, the embodiment of the present invention has been described by way of example with reference to the drawings, but various changes and modifications can be made within the scope allowed by the matter.

According to the present invention, a call made in a host using a RANS call connected to an existing space switch as a subsystem of an ANS is connected to only a time switch and only to a space switch with another ANS to reduce an overload factor of the space switch. There is. In addition, there is an advantage that the flexibility of the expansion is increased.

Claims (3)

In the method of forming a currency in an electronic exchange: Connect the relay line between RANS and ANS in a one-to-one correspondence so that RANS operates as a subordinate system of ANS, and connects calls between RANS inside and calls between RANS and ANS with time switch without connecting space switch. Forming. A method of forming a currency path in an electronic switch: RANS is subordinate to ANS as a subsystem and allocates a relay line to configure currency, and RANS and ANS connect r_ts_no to RANS and ANS (HOST ) Assigns h_ts_no and connects them to respective subscriber time slots, cg_ts and cd_ts, to configure a call path. The method of claim 2, wherein the RANS-ANS call is configured by allocating an E1 relay line link between the RANS and the ANS (HOST).

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