KR19990009277A - How to handle call forwarding service in personal communication service - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Call forwarding service in personal communication service

2. Technical problem to be solved by the invention

In order to reduce the incomplete call in the communication network by solving the problem of unreceiving by the power cut when providing personal communication service.

3. Summary of Solution to Invention

Additional data may be stored in personal communication service subscriber data to enable a call forwarding to a terminal other than the personal communication service switcher, thereby reducing incomplete calls due to unreceivable.

4. Important uses of the invention

Increased efficiency of personal communication service

Description

How to handle call forwarding service in personal communication service

The present invention relates to a method for processing call forwarding service to another communication terminal when the personal communication telephone is powered off.

In the conventional Personal Communication Service (PCS) system, when the PCS telephone is powered off, the subscriber information processing apparatus (Home Locations Registration; hereinafter referred to as HLR) stores subscriber information through the PCS switch. If the HLR receives a request for the location information of the terminal from the PCS exchange, it responds with the reception failure due to the power off, and the exchange provides the terminal with the corresponding guidance message.

In addition, as communication services are diversified recently, various types of communication terminals, such as landline telephones, PCS telephones, and pagers, are used for voice calls. However, these communication terminals have their respective numbers, and in order to use each communication terminal, the number of the corresponding communication terminal must be used. In this way, the number of each of the communication terminals is used by the user. Not only do we have to remember, we have also increased the number of incomplete calls on the network side, which has caused many problems.

However, due to the nature of the power supply system (PCS telephones are powered by the charger, it is difficult to always supply power, which makes it difficult to keep the phone always available). Inconvenient to use, and the current communication service is diversified, PCS subscribers also own a personal pager or landline phone. Therefore, the necessity of a method of receiving from another communication terminal when the wireless telephone of the PCS subscriber is cut off and the reception is impossible. In addition, since most subscribers own multiple communication terminals, a service is required to allow a terminal to be able to receive a call when a call is requested using a single unified number using a representative number of communication terminals.

Therefore, the present invention devised to solve the problems of the prior art and to meet the above requirements, when the wireless telephone is turned off in the PCS, the call forwarding number is registered in the PCS network when the service subscription, or the subscriber online during the service Provides a landline telephone or pager number already stored by direct number input method or by inputting the number from the operating terminal in the offline state, and the exchange can receive the announcement after providing the announcement to the caller. It is an object of the present invention to provide a method for processing a call forwarding service to another communication communication terminal when a power supply of a personal communication phone providing an incoming service to a terminal is cut off.

In order to achieve the above object, the present invention stores a telephone number to be received in order to receive an incoming call when the personal communication service terminal is turned off in another communication terminal in the subscriber data of the subscriber information processing device in advance Upon receiving the request for location information, the first step of requesting to perform the call forwarding service to the personal communication service exchanger, and receiving the instruction from the subscriber information processing device at the personal communication service exchanger, providing the announcement to the calling terminal, receiving a specific digit And a second step of performing call processing again with the call forwarding number received from the information processing apparatus.

1 is a configuration diagram of a PCS system to which the present invention is applied

2 is a data structure diagram of subscriber information stored in a subscriber information processing apparatus according to the present invention;

3A and 3B are diagrams illustrating a service processing procedure in which the present invention is performed in an HLR.

4A and 4B illustrate a call processing procedure in which the present invention is performed in a PCX.

Explanation of symbols for main parts of the drawings

101: base station controller and base station

102: PCS Match Exchange Subsystem

(Access Switching Subsystem for PCS)

103: Interconnection Network Subsystem

104: trunk line match exchange subsystem

(Access Switching Subsystem for Trunk)

105: No. 7 common channel signaling network

106: Home Location Register

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

1 is a structural diagram of a PCS system to which the present invention is applied, as shown in the drawing, to control and manage a base station performing wireless communication and multiple base stations to transmit and receive information with a PCS telephone (not shown) and to provide a call path. A base station controller, a base station 101, a base station controller, and a base station controller. 7 PCS matched exchange subsystem (102) including a PCS Call Control Block (PCC) that is directly connected by common line signaling to provide T-switch and circuit-switched functions and to perform overall call processing of PCS calls; Network subsystem 103, which includes an S switch and a Number Translation Routing (NTR) function that connects a path between calls between T switches. 7 trunk line matching agitation service system 104, which includes a T-switch connected to a common line signal link or another switch to provide a traffic channel for transmitting signal messages or voice traffic and a trunk line control function to control them No. that provides information back and forth between the backbone or the exchange and the HLR. 7 common line signaling network 105, consisting of HLR 106 that holds the data of the PCS subscriber and provides exchange information to the exchange.

FIG. 2 is a diagram illustrating a data structure having subscriber information in an HLR having subscriber information to which the present invention is applied. As shown in the figure, subscriber data are largely classified into two types.

First, the subscriber number 201, which is used to find information about a particular subscriber among the subscriber data stored according to the structure of the subscriber information, indicates the subscriber's PCS number as the subscriber data used previously, and the terminal corresponding to the current subscriber number. Contains a location area identifier 202 indicating at which location the terminal is located, a terminal state 203 indicating that the current terminal is in a power-off state or active state, and many other data.

Second, whether to use the call forwarding by the power off as the data to be newly added for the present invention and whether or not the service use 204 indicating the current incoming call number registration status, the call forwarding number is registered, pager, landline, etc. A switching number type 205 indicating a terminal type, and a switching terminal number 206 indicating a call forwarding number currently registered.

3A and 3B are service flow diagrams illustrating a process of processing a service in an HLR to which the present invention is applied. As shown in FIG. 3, when a system is started, an access protocol and data initialization of a system are received to receive a message from a PCS exchange. A system initialization process is performed (301) and the state is switched to the message waiting state (302).

When receiving the incoming location information request message for the called party from the PCS exchange in the message waiting state, it is checked whether the terminal is powered off based on the subscriber data indicating the terminal state stored in the system (304). The terminal state in the subscriber data used herein is stored as data indicating the power off state according to a separate procedure when the PCS terminal is powered off.

If the power is not cut off, based on the subscriber data indicating the location area of the called terminal, a routing information request message is transmitted to obtain routing information about the destination exchange in which the current terminal is located (305). Wait for a response.

When the response message for the routing information request is received in the routing information waiting state (307), the routing number received from the response message is allocated to the PCS exchange via the response message for the called location information request and allocated (308). The response to the call location information request is transmitted by marking the message result as success (310).

When the terminal is turned off (304), if the power is turned off, the subscriber data is checked to see if the subscriber can use the call forwarding service based on the availability of the power cut (311). Indicated by the failure to indicate that the reception is not received by the power cut off and transmits a response message number for the called location information request (310).

If the call forwarding service user by the power cut off checks whether the call forwarding number is registered (313), if the call forwarding service is not registered, performs the procedure of processing the response result of the call forwarding request as a failure and the call forwarding number is If it is registered, the result of the response message for the incoming location information request is marked as successful (314), and the incoming phone number stored in the subscriber data is allocated to the corresponding parameter of the response message (315). Transmit and transition to the message waiting state (302).

4A and 4B are call processing flow diagrams illustrating only processes of processing a service in a PCS exchange to which the present invention is applied. Upon receiving the outgoing call processing request (401), the sender is identified and the digit is received in the same way as the existing processing procedure, and the data is passed through the outgoing processing 402 which is stored in the system for use during call processing. A call number number translation is performed (403). Called party number translation is performed at NTR block in INS by request of PCC block of ASS-P. When the number translation result is received from PCC block, call sent according to number translation result is different from PCS code such as genetic telephone or pager. If the call is the same as before and ends (404).

In the case of the PCS call, the called party number translation result transmits the called location information request message to the HLR (405) and receives a response (406) to obtain the location information of the terminal required for the call connection to the called exchange. Here, the message transmission / reception with the HLR is the same as before. 7 It is through common line signaling method.

Analyzing the response message for the received location information request, it is determined whether there is a call forwarding request due to power off in the included information (407). If not, the process is performed in the same step as the existing processing procedure (404). .

When the call forwarding is requested, the HLR is instructed to apply the present invention. Therefore, the announcement is sent to the calling terminal (408), and the type of the calling terminal is checked based on the calling party information stored in the system (409). In case of connection, the DTMF receiver capable of receiving the digits input through the terminal is connected (410), and then the state is switched to the digit reception state 1 (411). Here, the method of providing the announcement and the method of connecting the DTMF receiver generally follow the same method as applied in the exchange. At this time, the guidance information provided is stored in the voice guidance of a certain content that is applied only to the present invention, the voice guidance is transmitted to the caller through the voice traffic channel.

In the digit receiving state, when a caller receives a digit that he presses to continue the call either during or after the voice prompt (412), the digit is compared and the digit is returned again if it is not a specific digit (e.g. '#'). The receiver returns to the digit reception state for reception, and in case of a specific digit, cuts the announcement and the DTMF receiver (413). The call forwarding number received from the HLR is regarded as a digit received from the calling terminal (416), and the process returns to the step of performing call number translation to perform call processing again. Here, when the caller hangs up a phone call without receiving a specific digit while receiving voice guidance, the call release procedure is performed in the same manner as the existing process.

When the originating terminal is a mobile terminal, the digital terminal receives the digit reception as a message without using a DTMF receiver, and immediately switches to the digit receiving state 2 (414). When the user presses a digit and presses the send key to continue the call after receiving the announcement, and receives a Flash With Info message from the base station controller (415), the called phone number is received from the calling terminal. It is regarded as one digit (416) and the process returns to the step of performing the called number number translation to perform the call processing again. Here, the information transmission message during a call is a message used to transmit to the exchange by pressing a digit when the call path is set in the case of the PCS terminal.

The present invention as described above can be changed to any communication terminal the user wants to receive a call to the PCS phone in the PCS system. While the PCS phone is receiving power, incoming calls are received directly from the phone, but when the power is cut off, it can be received through another communication terminal, such as a landline phone or pager that you own or use for a while.

You can also change the call forwarding number you want to receive on your PCS phone at any time online or offline.

Therefore, in terms of a person using the service of the present invention, even if they own multiple communication terminals for voice calls, that is, wired telephones, PCS telephones, pagers, etc., only one representative PCS telephone number is used without using terminal numbers for them. Even if it is possible to receive by other terminal, it is possible to prevent the unreceived state by power off.

In addition, the caller needs to remember only one PCS phone number without remembering all the phone numbers for multiple communication terminals owned by the caller. There is an effect that can be prevented.

Claims (4)

When the personal communication service terminal is turned off, the phone number to be received in order to receive an incoming call from another communication terminal is stored in the subscriber data of the subscriber information processing device in advance. A first step of requesting to perform a call forwarding service; And a second step in which the personal communication service exchanger receives an instruction from the subscriber information processing device, provides a guide broadcast to the calling terminal, and then receives a specific digit to perform call processing again with the forwarding number received from the subscriber information processing device. A method for processing call forwarding service in a personal communication service. The method of claim 1, And the subscriber data stored in the subscriber information processing device includes information on whether to use a power cutoff service, a type of switching, and a switching terminal number. The method of claim 1, wherein the first step, A first process of performing a system initialization process and switching to a message waiting state when the system starts; A second step of checking whether the terminal is powered off when receiving the incoming location information request message from the personal communication service switch; A third step of providing a call forwarding service when the power is not turned off in the second step, and confirming whether the call forwarding service is a subscriber in case of a power cut; If the call forwarding service subscriber in the third process provides a call forwarding service to the terminal that can be received, if not the subscriber, the call forwarding service processing method in a personal communication service, characterized in that it comprises a fourth process to terminate after the reception is not received. . The method of claim 1, wherein the second step, A first step of analyzing a response message to the called location information request received from the subscriber information processing device and transmitting the announcement to the calling terminal in the case of the incoming call request; A second process of receiving a specific digit when the mobile terminal is a wired terminal; In the case of a mobile terminal, a method of processing a call forwarding service in a personal communication service, comprising: receiving a information transfer message during a call and performing a number translation to perform call processing on the call forwarding number again.