KR100191927B1 - Wide-area paging system using multi-capcode - Google Patents

Abstract

The present invention relates to a wide area wireless paging device capable of receiving a wireless paging service in a region other than the initial registered area of a wireless paging service subscriber, and more particularly, to a wide area wireless paging device of a multi-cap coded method.

The present invention is configured to include subscriber information storage means 204, wide area subscriber information storage means 206, special code storage means 207 and wide area wireless paging signal generating means 202, In response to the signal, if the callee is a general subscriber and is a wide area subscriber, then it is arranged to generate a paging signal comprising a special code corresponding to the subscriber ' s cap code along with the subscriber ' s cap code.

Therefore, according to the present invention, by using the special code composed of the area code and the wireless channel code together with the cap code of the conventional user, the users having the same cap code can be accommodated in other areas by the constitution and the processing operation.

Description

Multicap coded wide area paging system

FIG. 1 is a block diagram of a conventional wide area wireless paging system. FIG.

FIG. 2 is a configuration diagram of a wide area wireless paging system according to the present invention; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

100, 200: Public telephone exchanges

102, 202: Wide area wireless call-only exchanger

104, 204: Subscriber information database 106, 206: Wide area database

108, 110, 208, 210: base station 112, 212:

114, 21.4. Wide area wireless pager 207: Special code database

The present invention relates to a wide area wireless paging device capable of receiving a wireless paging service in a region other than the initial registered area of a wireless paging service subscriber, and more particularly, to a wide area wireless paging device of a multi-cap coded method.

As shown in FIG. 1, in a conventional wide area wireless paging device, when a caller calls a broadband wireless pager, a call signal of the caller is transmitted to the wide area paging-only switch 102 through the normal telephone exchange 100, Determines whether to register and terminate the subscriber through the subscriber management information stored in the subscriber information database 104, and determines the paging service. If the subscriber is a registered subscriber, it is determined whether the subscriber is a wide area subscriber by using the information stored in the wide area database 106. If the subscriber is a wide area subscriber, the service area is confirmed and the message data is transmitted to the corresponding area, Code (code for identifying each wide area pager) and message data, and only the corresponding wide area pager 114 in each area receives the data message.

The maximum number of codes of the cap that can now be accommodated in a single radio frequency (RF) channel in the POCSAG operation sequence data of the wide area radio paging device is a cap code is 21 bits, so ²²¹ is about 2,097,152 branches. However, in the method used in Korea, since the upper two digits (decimal number) of the cap code are written as the value representing the region, the number of cap codes that can be used in one wireless channel in each region is only about 100,000. Also, because of the wide area, the number of cap codes that can be used in one wireless channel in one area is limited. For example, since the number of wireless channels in the Seoul area is large, the cap codes accommodated in the respective wireless channels may be the same, and the same cap code can not be simultaneously accommodated in the service wireless channel of the other area. In other words, a large number of wireless channels are required in a metropolitan area such as Seoul, so that there are people having the same cap code in this area. In this case, users having the same cap code have a relatively large number of wireless channels There is a problem in that it is necessary to set overlapping of cap codes for the same radio channel beforehand in case of moving between regions in small local cities.

SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide a broadband wireless paging device capable of accommodating users having the same cap code in one area at a time by using a multi-cap coded scheme .

In order to achieve the above object, a wide area wireless paging apparatus of the present invention is an apparatus for identifying a subscriber having the same cap code in another area, comprising: general subscriber information storage means for storing information of a general subscriber subscribed to the wide area wireless paging device; ; A wide area subscriber information storage unit for storing information on a wide area subscriber subscribed to the wide area wireless paging service among the subscribers; A special code storing means for storing a special code for identifying a wide area subscriber using the same cap code; And accessing the general subscriber information storage means to inquire whether the subscriber is a general subscriber in response to a signal for calling the subscriber, and when the called party is a general subscriber, accessing the wide area subscriber information storage means, And generating a wireless paging signal including a special code in the special code storage means corresponding to the cap code of the subscriber together with the cap code of the subscriber if the called party is a wide area subscriber And means.

Also, a wide area wireless paging method according to the present invention is a method for identifying a same subscriber in a different area, the method comprising: storing information of a general subscriber; Storing information on a wide area subscriber; Storing a special code for identifying a wide area subscriber using the same cap code; And in response to a signal calling the subscriber, inquiring whether the callee is a general subscriber, determining if the callee is a wide area subscriber if the subscriber is a general subscriber, and determining if the called party is a wide area subscriber, And generating a wireless paging signal including the special code corresponding to the cap code of the subscriber.

Here, the special code is composed of a subscription area code and a radio channel code.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG.

FIG. 2 is a block diagram of a wide area wireless paging device in accordance with the present invention. The wide area wireless paging device according to the present invention is substantially the same as the conventional wide area wireless paging device, and further includes a special code database 207 for using the multi-cap code method.

The special code database 207 stores a plurality of special codes. In an embodiment of the present invention, the wireless paging signal is assumed to be a POCSAG signal and a special code is described. The POCSAG signal consists of a plurality of consecutive arrangements following the preamble and preamble. Each arrangement consists of a 32-bit synchronous code word and eight frames, each of which is 64 bits. Each frame contains a 32-bit address code word Two code words are included among a 32-bit message code word or a 32-bit idle code word. The address code word is composed of a flag of 1 bit, address data of 18 bits, function code of 2 bits, error check data of 10 bits, and parity bit of 1 bit. The message code word includes a flag of 1 bit, , 10-bit error check data, and 1-bit parity bit. The idle code word is composed of a 1-bit flag, 20-bit idle data, 10-bit error check data, and 1-bit parity bit. In the present invention, the special code is included in the message data position of the message code word located immediately after the address code word, and the special code is composed of the subscription area code (or home area code) and the wireless channel code. The subscription area code refers to a code indicating an area to which the subscriber first subscribes, and refers to a code of a radio channel of the area in which the radio channel code is currently used. For example, if the subscription area code is a code representing Seoul and the wireless channel code is 30, the special code is indicated as (Seoul + 30).

Referring to FIG. 2, the calling information of the caller, that is, the paging message delivered from the public switched telephone network 200 of the public switched telephone network, is received by the wide area paging-only exchange 202 and transmitted to the internal control unit. The control unit of the wide area wireless call-only exchange 202 connects to the subscriber information database 204 to inquire the subscriber number and determines whether the subscriber who is called by the caller is a registered subscriber. If it is determined that the subscriber is a registered subscriber, it is checked whether the called party is a wide area subscriber by connecting to the wide area database 206. If the subscriber is a wide area subscriber, the specific code is connected to the special code database 207, The wireless paging signal is transmitted through the base station 212 and only the wide area wireless pager 214 having the cap code and the special code included in the wireless paging signal transmitted within the area simultaneously receives the caller's message.

As described above, according to the present invention, by using the special code composed of the area code and the wireless channel code together with the cap code of the conventional user, the users having the same cap code can be accommodated in other regions.

Claims (4)

Subscriber information storage means (204) for storing subscriber information; A wide area subscriber information storage unit 206 for storing information on a wide area subscriber subscribed to the wide area wireless paging service among the subscribers; A special code storage means (207) for storing a special code for identifying a wide area subscriber using the same cap code; And accessing the general subscriber information storage means 204 in response to a signal for calling the subscriber, inquiring whether the subscriber is a general subscriber by accessing the general subscriber information storage means 204, The special code stored in the special code storage means (207) corresponding to the subscriber's cap code, together with the subscriber's cap code, if the called party is a wide area subscriber, And a wide area wireless paging signal generating means (202) for generating a signal. 2. The wide area wireless calling apparatus according to claim 1, wherein the special code is composed of a subscription area code and a wireless channel code. A wide area wireless paging method of a wide area wireless paging device including subscriber information storage means 204, wide area subscriber information storage means 206, special code storage means 207 and wide area wireless paging signal generating means 202 The method comprising: storing general subscriber information in the subscriber information storage means 204; Storing information on a wide area subscriber in the wide area subscriber information storage unit 206; Storing in the special code storage means (207) a special code for identifying a wide area subscriber using the same cap code; And generating, in response to a signal calling the subscriber, a wireless paging signal that includes the special code corresponding to the subscriber's cap code with the subscriber's cap code if the called party is a general subscriber and a wide area subscriber The method comprising the steps of: 4. The method of claim 3, wherein the special code comprises a subscription area code and a wireless channel code.