KR100858272B1 - Method for Real-time two-way short Message service - Google Patents

Abstract

The present invention relates to a method and system for extending a current short text service (SMS) to implement a two-way text call in real time as a conventional voice call. The present SMS in an existing CDMA network implemented with a short message center (SMC) Fully compatible with text message protocol (Short Message Service) to the SME (Short Message Entity, Terminal) or ESME (Extra SME, comprehensively defines all communication devices that work with SMC), the terminal screen Implement a UI (User Interface) to provide the necessary information for text calls and multi-calls at once, and also transmits the sender's telephone number or ID at the time of transmission to link the telephone number or ID in the SMC, and the linked Integrated management of phone number or ID in a separate memory to directly connect the sender / receiver ID per text call, and the mutual ID can be displayed in or before SMC. By forming: (Virtual Channel, virtual memory area VC), transmitter / receivers between the real-time two-way text call connect virtual channels to: a method and a system implementing the (one-to-one (1) character currency or multiple-character currency).

    Short Message Service (SMS), Short Message Center (SMC), Virtual Channel, Text Call

Description

{Method for Real-time two-way short message service}

1 is a basic configuration diagram of an SMS-Short Message Service including an SMC implemented using a conventional store and forward transmission scheme.

2 is a flowchart illustrating a process of transmitting a text message edited in an existing transmitting terminal (MO) to a receiving terminal via an SMC.

3 is a schematic block diagram showing the interworking between the text call service system and the existing SMC according to the present invention.

4 is a basic configuration of a text call service system according to the present invention.

5 is a diagram illustrating a one-to-one (1: 1) text call of a mobile communication terminal equipped with a text call service system.

FIG. 6 is a diagram illustrating an example of a multi-text call being conducted with a desired person at a desired time.                 

FIG. 7 is a diagram for one embodiment of multiple call conversion during a one-to-one (1: 1) text call.

8 is a diagram illustrating a case where multiple users want to make a multi call.

<Description of main parts of drawing>

400: Short Message Center (SMC) 405: Frequency converter 1

410 interface 415: message transmission unit

420: additional message transmitter 425: message receiver

430: additional message receiving unit 435: counter

440: search unit 445: user D / B (Data Base)

450: control unit 455: frequency converter 2

460: Making Virtual Channel (MVC)

The present invention relates to a method and system for extending a current short text service (SMS) to implement a two-way text call in real time as a conventional voice call. The present SMS in an existing CDMA network implemented with a short message center (SMC) Fully compatible with text message protocol (Short Message Service) to SME (Short Message Entity, Terminal) or ESME (Extra SME, comprehensively defines all communication devices that work with SMC) in software, terminal screen Implement a UI (User Interface) to provide the necessary information for text calls and multi-calls at once, and also transmits the sender's telephone number or ID at the time of transmission to link the telephone number or ID in the SMC, and the linked Integrated management of phone number or ID in a separate memory to directly connect the sender / receiver ID per text call, and the mutual ID can be displayed in or before SMC. The present invention relates to a method and system for implementing a real-time two-way text call (one-to-one (1: 1) text call or multi-text call) between a sender and a receiver by forming a virtual channel (VC) that connects a call. .

SMS is first introduced by defining the point-to-point service that allows the ETSI (European Telecommunication Standard Institute) to send and receive messages of up to 155 octets between terminals for application to Global System for Mobile Communications (GSM). It became.

SMS is implemented by sending a message to DBM (Data Burst Message) by setting the service option on the IS-95-A protocol of wireless data communication to 6 or 14. In order to receive SMS, the software sends or receives a message to the terminal. Should be added. Therefore, in order to implement SMS, it can be implemented by adding an SMC (Short Message Center), which is a network element capable of handling SMS, to the existing network and supplementing the network protocol. The related protocol is defined in TIA / EIA / IS-637, and IS-95-A is defined in the upper layer of TIA / EIA / IS-637. In addition, complementary content of the SMS network protocol is defined in TSB 79.

The message delivery of SMS is not done directly through the established channel, but is stored in the SMC according to the state of the terminal or network through the SMC. To realize the concept, it is important to establish a virtual channel in the SMC so that the caller can feel that the text message in use is processed in real time immediately.

Usually on the Internet in a server concept. The text services we are dealing with in the wireless market are additional services, which we call text messaging, and chat on wireless mobile communications that are beginning these days. The explosive use of text messages by Generation N still has as many of the additional features of mobile communications as the volume of voice calls, the main feature of mobile communications, but it does not predict exactly when a message will arrive at the other party after sending it. You can't do this, and you have to keep typing your phone number each time you send it, press the "SEND" button each time, and delete all the text messages you've been writing when you get a voice call. In addition, chatting using wireless mobile communication has the advantage that it can be conveniently enjoyed regardless of the place, but it is not compatible with other mobile communication providers, and its usage is inconvenient, making it difficult to chat 1: 1 or more. They are asking each other's phone numbers, making a phone call and chatting by voice.

Beyond text service, text call should be as easy to use as voice call, real-time two-way, and should be able to realize multi-party call (hereinafter referred to as multi-call) with people who want at the same time. However, there is a problem that it is difficult to implement the text call in the existing text service method.

An object of the present invention is to solve the above problems and to implement a new communication method called a text call, a character that is fully compatible with the existing short message service (SMS) in the existing CDMA network implemented SMC (Short Message Center) Software is provided to SME (Short Message Entity, Terminal) or ESME (Extra SME, which comprehensively defines all communication devices linked with SMC) to realize real-time two-way text call and multi-call method using SMC. It provides a way to conveniently enjoy a multi-text call regardless of the one-to-one (1: 1) text call or other mobile carriers with the right people at the desired time.

Another object of the present invention is to provide a service method of forming a virtual channel VC (Virtual Memory Area) by connecting caller mutual IDs to each other in or at the front end in order to implement a real-time text call. .

Another object of the present invention is to transmit the phone number or ID of the sender when transmitting to the terminal and link the user's phone number and ID in the SMC integrated management in a separate memory directly connected to the sender / receiver ID per text call It is to provide a two-way text call service method.

Another object of the present invention is to provide a method that can be used quickly and conveniently by implementing a user interface (UI) that provides the necessary information for a text call, multi-call on the terminal screen at a time.

It is still another object of the present invention to provide a text call service protocol that is fully compatible with an existing SMS service, thereby providing a transmission / reception service without additional protocol or hardware device.

The present invention relates to a method and system for extending a current short text service (SMS) to implement a two-way text call in real time as a conventional voice call. The present SMS in an existing CDMA network implemented with a short message center (SMC) Fully compatible with text message protocol (Short Message Service) to the SME (Short Message Entity, Terminal) or ESME (Extra SME, comprehensively defines all communication devices that work with SMC), the terminal screen Implement a UI (User Interface) to provide the necessary information for text calls and multi-calls at once, and also transmits the sender's telephone number or ID at the time of transmission to link the telephone number or ID in the SMC, and the linked Integrated management of phone number or ID in a separate memory to directly connect the sender / receiver ID per text call, and the mutual ID can be displayed in or before SMC. By forming: (Virtual Channel, virtual memory area VC), transmitter / receivers between the real-time two-way text call connect virtual channels to: a method and a system implementing the (one-to-one (1) character currency or multiple-character currency).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description, in order to explain the embodiments of the present invention, specific details such as specific elements are illustrated, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be apparent to those skilled in the art. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a basic diagram of a short message service (SMS) including an SMC 110 implemented using a conventional store and forward transmission scheme.

The transmitting terminal (MO) 100 refers to a terminal for creating and editing a message to transmit a text.

The Short Message Center (SMC) 110 stores characters to be transmitted and also serves as an interface between the transmitting terminal 100 and the receiving terminal 120.

MT (Mobile Terminated) 120 refers to a terminal that finally receives the received character.

Since the SMC 110 implements SMS using such a store and forward transmission method, real-time telecommunication is not guaranteed, but the MT SME 120 is valid for a valid period in which the corresponding message is stored in the SMC 110. When a state that can be received is secured, the message can be transmitted at any time, thereby ensuring the reliability of the message.

2 is a flowchart illustrating a process of transmitting a text message edited in an existing transmitting terminal (MO) 100 to the receiving terminal 120 via the SMC 110.

The transmitting terminal user edits the corresponding message to be sent to the receiving terminal user (200) and transmits to the SMC 110 (210). If it is not transmitted, it requests a retransmission (220), and if the transmission is completed, transmits a response message indicating that the transmission is completed (MO) (230) (230). When the transmission of the response message is completed, the SMC 110 checks the reception state of the receiving terminal MT 120 (240) and transmits the corresponding message sent from the transmitting terminal 100 (250). If transmission is not possible, retransmission is requested (260). When the transmission is completed, the receiving terminal 120 transmits a response message that the transmission is completed to the SMC (110) (270).

3 is a schematic diagram of a text call service system 300 for real-time two-way communication in the SMC method of FIG.

The text call transmission process in the text call service system 300 includes;

The text call message processed by the text call service system 300 is transmitted through the SMS message transmitter 330 by the interface 320 via the SMC transmitter 310. The real time call is implemented by returning the order assigned at the time of receiving the text call message to the text call service controller 450 through the interface 410 in the text call service system 300.

The text call receiving process in the text call service system 300 includes;

The text message received by the SMS receiver 340 is received by the text call service system 300 via the SMC receiver 350 through the interface 320. (Shown as dotted lines on the drawing)

The received message is assigned a virtual channel described below via ID or telephone number search within the text call service system 300. The message receiving unit 425 in the text call service system 300 installs a counter 435 to assign a sequence number to the received message. When the received message is processed and transmitted to the receiver by the SMC transmitter 310, the text call service system 300 returns the assigned sequence number to the text call service controller 450 through the interface 410, thereby real-time texting. It may be confirmed in the text call service system 300 that the processing was performed.

The text call service system 300 is conceptually defined as an upper layer of the SME in charge of SMS, and the message call transmission / reception of the text call service system 300 is performed by the message send / receive unit of the SME through a text call service interface (hereinafter referred to as an interface). Interlocked. This is to ensure the ease of expansion and roaming services of the system by adding a text call service as an independent module while maintaining the existing SME.

4 is a block diagram showing in more detail the text call service system 300 of FIG.

The frequency conversion device 1 405 is located at the front end of the interface 410 to convert high frequency into the original message signal.

The interface 410 interlocks with the short message service (SMC) 110 and the message transmitter 415, the message receiver 425, the additional message transmitter 420, and the additional message receiver 430 of the text communication system 300. And, it serves to connect the SMC 110 and the text call service system 300.

The message transmitter 415 transmits the high frequency signal transmitted from the virtual channel forming unit (hereinafter referred to as MVC) 460 to the interface 410.

The additional message transmitter 420 is an extra transmitter prepared for the congestion time zone.

The message receiving unit 425 includes a receiving / receiving phone number together with the received message and is directly connected to the counter 435.

The additional message receiving unit 430 is an additionally expanded receiving unit made in preparation for the congestion time zone.

As described above, the additional message transmitting / receiving units 420 and 430 are configured in the SMC 400 to continuously add the transmitting / receiving units 415 and 425 according to the progress of the service, thereby transmitting more than the message processing speed of the existing text service. It is implemented so that the receiving speed can be at least 1.5 times faster.

The counter 435 is connected to the message receiving unit 425 and serves to assign a sequence number to the received message.

The search unit 440 searches for a user D / B 445 to search for a song, a receiver ID, or a phone number.

Since the user D / B 445 stores the customer ID and the phone number together, the user D / B 445 can search for and connect the customer ID only with the phone number.

The control unit 450 serves to implement a real-time call by receiving a sequence number assigned when receiving a text call message through an interface. It also checks the volume of calls from time to time, and when the capacity is exceeded, the additional extra transmitter / receiver is operated.

Frequency converter 2 (455) is installed in front of the MVC (460) in order to ensure the reliability of the congestion time call to convert the message signal into a high frequency signal to expand the bandwidth.

The MVC 460 serves to allocate a virtual channel based on the customer information retrieved from the user D / B 445 through the search unit 440. The MVC 460 forms a channel having more than thousands of processing capacities at once in a wired / wireless manner separately from a mobile communication company. The channel is allocated until the end of the call per call. At the end of the call, the channel is recovered and used again for channel assignment.

Here, the virtual channel means a separate memory space for making a text call between the sender and the receiver in real time, and usually allocates 124 bytes of memory per text call. For example, a text call usually takes about 80 bytes when sending 40 characters, and it takes about 102 bytes when combined with a sender / receiver ID or phone number of about 22 bytes, so the memory is divided by about 124 bytes per text call. One virtual channel is formed. Even if the memory in the medium server is used as it is, about 10,000 virtual channels can be formed (e.g., 1M = 1000000 bytes, divided by 124 bytes to form about 10,000 channels).

As described above, the virtual channel formed by the MVC 460 is a space (memory) that enables real-time texting of only the sender / receiver. In the case of a multi-call, a third party's caller also joins a previously formed virtual channel, thereby real-time. You will implement multiple character calls.

As described above, the virtual channel allocates each allocated memory to the sender / receiver phone number (or ID) when the first call is started in each allocated memory, so that each call is used only for the allocated memory space until the end of the call. By inputting the user's telephone number for each existing transmission message, it is possible to overcome the unidirectionality of the existing text service transmitted and to implement a two-way text call. The operation of allocating the memory space or allocating the sender / receiver telephone number thereto is basically realized by the controller 450 as a software program. The control unit 450 processes the same memory area (channel) until the end of the call based on the sender / receiver phone number sent with each message. Sender / receiver phone number assignment in memory is implemented by identifying the sender and receiver in the first attempted text message.

In addition, the virtual channel referred to herein is an element that can be fully implemented as a software program, and it is noted that various implementations are possible in addition to the method described herein.

The simple virtual channel is composed of a memory in the center and a buffer (RAM) and a control unit 450 connected to both sides, and the memory is divided into 124 bytes in the control unit 450 or a user's telephone call is made according to a call. Sort by ID to use as virtual channel.

The received message texted at the SMC 110 is immediately entered into the system via the interface 410. In addition to the system protocol compatible function, the interface 410 also adds a function of monitoring whether a call received from the SMS is immediately processed and entered into the text communication system. It is transmitted to the receiving unit 425 in the present system through the interface 410, and the receiving unit 425 assigns a sequence number to the input message and counts it in the counter 435 for a real time call. When the message is input to the search unit 440, the control unit 450 and the search unit 440 interoperate with each other, and the search unit 440 first obtains the sender / receiver phone number (ID) from the user D / B 445. After the search is completed, the controller 450 creates a virtual channel of 124 bytes for the call in the memory of the MVC 460 and allocates the transceiver telephone number (ID) to the virtual channel through a software program. After that, the characters communicated between the transmitter and the receiver are controlled to communicate only through the formed virtual channel (the memory). After the virtual channel is formed in the MVC 460, the text message processed by the message transmitter 415 is sent to the receiver, and at this time, by returning the sequence number assigned by the receiver 425 to the controller 450, it is checked whether the real time processing is performed. do.

5 is an exemplary one-to-one (1: 1) text call of a mobile communication terminal equipped with a text call service system 300. The following exemplary diagrams may vary depending on the manufacturer and model of the terminal, which are used to more effectively express the function of each module of the text call service system 300.

After entering the stored address stored in the phone number or the memory address of the mobile terminal, press the "SEND" button and the voice call and text call screening modes appear on the screen. If you select the text call mode, you will see a text message on the other phone. If you want to make a call, you can select 1. Call and 2. Cancel to not call. The text call is sent to the other party by pressing the "SEND" button after writing the text message.

6 is an exemplary diagram of a multi-text call for conducting a multi-text call with the desired people at a desired time.

Write a message like a one-to-one (1: 1) text call and press the "SEND" button to forward it to the other party. Of course, it is delivered to all participants of the multi-call.

The message with the "SEND" button at the end is sent and the rest is the message received from the other party.

7 is an exemplary diagram of a multiple call conversion during a one-to-one (1: 1) text call.

When a new text call arrives during a text call, the message at the top of the screen scrolls to the left and repeatedly appears until you select a mode. Here, select the mode using the confirm key.

8 is an exemplary diagram when multiple users want to make a multiple call from the beginning.

The user selects the multi-call mode from the menu and inputs the phone number of the person who wants the multi-call to the target 1, 2, 3 ... or from the address book stored in the terminal and presses the "SEND" button.

According to the present invention, by implementing a virtual channel (virtual memory space) using the ID or telephone number of the sender / receiver, the one-to-one or multiple (multi-party) character call is simultaneously realized in both directions by overcoming the one-way call implemented by the existing character service. There is an advantage in that it can be implemented, and by implementing a UI (User Interface) that provides the necessary information for a text call, multi-call on the terminal screen at a time, there is an advantage that allows the user to make a faster and more convenient text call.

In addition, according to the present invention by providing a text call service protocol that is fully compatible with the existing SMS service, it is possible to provide a transmission / reception service without additional protocols or hardware devices, by using a cheaper SMS method than the existing voice call This has the advantage of reducing the communication cost burden of the user.

Claims (12)

delete delete delete delete delete delete delete delete delete delete delete A first step of receiving a telephone number message of a sender / receiver transmitted from a sender wireless communication device through a Short Message Center (SMC) on CDMA; The telephone number message of the sender / receiver is to be compared and searched by comparing the telephone number message of the receiver / receiver received in the first step with the customer ID and phone number stored in the user D / B to extract the telephone number (ID) of the receiver A second step of doing; A third step of allocating a virtual channel (or virtual memory area) of about 124 bytes (adjustable according to the call amount) corresponding to the telephone number (ID) of the caller / receiver extracted in the second step; A fourth step of connecting the sender / receiver and controlling the characters communicated between the sender / receiver only through the assigned virtual channel using the virtual channel formed in the third step; And a fifth step of reclaiming a memory area by recovering a virtual channel which was automatically formed at the end of the text call between senders and receivers. A real-time two-way text call method that implements one-to-one or multiple text calls.

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