KR20090047237A - Sms telephone and method of sending and receiving sms message in sms telephone - Google Patents

Abstract

Short Message Service (SMS) A method for splitting and transmitting an SMS message is provided, wherein a SMS message is divided into a plurality of SMS messages. According to an embodiment of the present invention, when transmitting an SMS message, when the length of the original text of the message exceeds the reference length, the original text is divided into a plurality of pieces to form partitioned data having an order. A plurality of divided SMS messages are formed by adding message information indicating whether to split each divided data. Upon receiving the SMS message, it is determined that the received SMS message is a divided SMS message based on the message information included in the received SMS message, and in the case of the divided SMS message, a plurality of divided SMS messages are combined according to the order of the divided data to form a received message. .

SMS, message, split, send

Description

SMS message transmission method of SMS phone and SMS phone {SMS TELEPHONE AND METHOD OF SENDING AND RECEIVING SMS MESSAGE IN SMS TELEPHONE}

The present invention relates to an apparatus and a method for telephony and message transmission, and more particularly, to a Short Message Service (SMS) telephone and a method for transmitting and receiving SMS messages.

In general, when sending an SMS message using an SMS phone subscribed to a wired communication service network, the number of characters of the message to be sent at one time, that is, the length of the original text of the message is limited to a length set by the communication service provider (for example, 180 bytes). do. Therefore, in order to transmit a message longer than the allowed length, it is necessary to transmit the message several times, and it is cumbersome to repeatedly input and transmit the sender number and the receiver number as well as the message in every transmission.

The present invention provides an SMS message segmentation transmission / reception method of an SMS phone subscribed to a wired communication network.

According to one embodiment, an SMS message transmission and reception method of an SMS phone, the method comprising: receiving an outgoing SMS message from a user; Comparing a length of a message text of the outgoing SMS message with a reference length; If the message original text exceeds the reference length as a result of the comparison, dividing the message original text into a plurality of pieces to form a plurality of pieces of fragmented data in order; Forming a plurality of divided SMS messages by adding message information indicating whether to divide each of the plurality of divided data; And transmitting the plurality of split SMS messages.

According to the embodiments below, when the length of the original text of the SMS message exceeds the reference length, the message text is automatically divided into a plurality of transmissions, and transmitted several times during transmission of the SMS message exceeding the reference length. The trouble of having to enter a phone number can be eliminated.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description, when there is a risk of unnecessarily obscuring the gist of the present invention, a detailed description of well-known functions and configurations will be omitted.

1 shows a configuration of an SMS phone 10 according to an embodiment of the present invention with a protocol hierarchy for transmitting and receiving SMS messages according to the European Telecommunication Standard Institute (ETSI) ES 201 912 v1.1.1 protocol.

The network interface unit 11 transmits / receives an SMS message and a voice call signal with a public switched telephone network (PSTN) (not shown). The transmission / reception SMS message may be an SMS message including one message text not exceeding a reference length, or may be a plurality of fragment SMS messages including a plurality of fragment data divided from one message text exceeding a reference length. A detailed method of forming a split SMS message will be described later.

The user interface 12 receives a voice call signal, an original text of a transmission message, and a recipient number from a user, outputs an SMS message and a voice call signal received from the other party's phone, requests an SMS message writing screen from the user, and sends and receives an SMS message. Receive various commands such as SMS message check, call origination, call reception, and termination. In an embodiment of the present invention, the user interface 12 may include a keypad for receiving an SMS message, a microphone for receiving a transmission voice, and a speaker for outputting a received voice. The keypad part includes various keys for sending and receiving SMS messages and telephone calls such as message creation screen request key, message origination request key, transmission / reception message confirmation key, call origination key, call reception key, end key, multiple numeric keys and text keys. To form the user's key selection information.

The storage unit 13 stores the text of the message input from the SMS message management program and the user interface unit 12, a plurality of pieces of divided data, and a transmission / reception SMS message. The SMS message management program is a program for implementing text message transmission and reception such as a message original input screen, an SMS message menu display, a received SMS message display, a storage SMS message transmission, and notification of SMS transmission and reception.

The data modulation and demodulation section 14 modulates the sent SMS message and demodulates the received SMS message. In an embodiment of the present invention, the data modulation / demodulation unit 14 may demodulate and demodulate a frequency shift keying (FSK) message.

The voice call signal modulation / demodulation unit 15 modulates the transmitted voice call signal and demodulates the received voice call signal sent from the other party's telephone. In an exemplary embodiment of the present invention, the voice call signal modulation / demodulation unit 15 may perform FSK modulation / demodulation on the transmitted / received voice signal.

The control unit 16 determines whether the reception from the network interface unit 11 is a voice call signal or an SMS message, the received SMS message is the data demodulation unit 14, and the received voice call signal is the voice call signal modulation / demodulation unit 15. To form a switching control signal for switching.

In addition, the controller 16 drives an SMS message management program stored in the storage unit 13 in response to a request for creating an SMS message, confirmation of transmission / reception of an SMS message, or reception of an SMS message. In addition, when the length of the message text input from the user exceeds the reference length, the controller 16 divides the message text into a plurality of pieces in order, and divides the information into pieces of the split data and the corresponding split data. A plurality of divided SMS messages are formed by adding message information including a sequence, a recipient number, a call time, and the like. Upon receiving the SMS message, the controller 16 determines whether the data demodulation unit 14 includes information on whether or not the demodulated SMS message is included, and when it is not a divided message, the controller 16 receives the demodulated SMS message as a received message to the storage unit 13. In the case of the divided message, a plurality of divided SMS messages are received, and the received plurality of divided SMS messages are combined in the order of the divided data to form a received message and then stored in the storage unit 13.

The switching unit 17 switches the SMS message and the voice call signal received from the network interface unit 11 to the data demodulation unit 14 and the voice call signal modulation / demodulation unit 15 according to the switching control signal.

When the SMS message management program is driven, the display unit 18 displays an SMS message creation screen under the control of the controller 16, and transmits / receives SMS messages stored in the storage unit 13 and a text input from the user interface unit 12. Display incoming and outgoing calls, calling phone numbers and more.

Network interface unit 11, user interface unit 12, storage unit 13, data modulation and demodulation unit 14, voice call signal modulation and demodulation unit 15, switching unit 17 of the telephone 10 having the above-described configuration. ) And the display unit 18 operate in a Short Message Entity ('Physical Layer;' SME-PL '), and the control unit 16 is a Short Message Entity-Datalink Layer (SME-). DL '), the Short Message Entity-Transfer Layer (weak' SME-TL ') and the Application Layer (Short Message Entity-Application Layer (weak' SME-AL ') To perform the operation.

Hereinafter, referring to FIG. 2, which shows an example of sending and receiving an SMS message between a sending SMS telephone serving as a Short Message Entity-Master (SME-M) and a receiving SMS telephone serving as a Short Message Entity-Slaver (SME-S), The SMS message transmission and reception control by the control unit 16 will be described in more detail.

The control unit 16 which runs the SMS message management program in the calling telephone SME-M, i.e., the application layer SME-AL of the SMS telephone SME-M, is the user interface 12 of the physical layer SME-PL. When receiving the SMS message transmission request from the), the length of the original message and the reference length stored in the storage unit 13 is compared. When the length of the message original text exceeds the reference length, the message original text is divided into reference length units to form a plurality of pieces of divided data (SMS1 data, SMS2 data, and SMS3 data) having an order (S21). The application layer SME-AL transfers a plurality of pieces of divided data (SMS1 data, SMS2 data, SMS3 data) to the delivery layer SME-TL (S22a, S22b, and S22c). In the following, the example of transmitting the original message text not exceeding the reference length once is the same as the example of transmitting one piece of data except for the fact that the splitting information is different, and thus the detailed description thereof is omitted.

The transport layer (SME-TL) receives each piece of data (SMS1 data, SMS2 data, SMS3 data) from the application layer (SME-AL), and the parameter data consisting of each piece of data (SMS1 data, SMS2 data, SMS3 data). (parameter data, hereinafter abbreviated as " PD "), and configure a parameter including a PD, a length PL of the PD, and a parameter type indicating a sequence of corresponding split data (hereinafter, referred to as “PT”). (S23a, S23b, S23c). Parameters (parameter 1, parameter 2, and parameter 3) formed from the divided data (SMS1 data, SMS2 data, and SMS3 data) are transferred from the transport layer SME-TL to the data link layer SME-DL (S24a, S24b). , S24c).

The data link layer (SME-DL) receives parameters (parameter 1, parameter 2, and parameter 3), and includes message segmentation information indicating whether the message is formed from fragmentation data, a caller number, a recipient number, a transmission time, and the like. (message information, MI) is formed. In addition, the data link layer (SME-DL) is a split SMS message (partition SMS message 1, split SMS message 2, split SMS) including message information, message length (ML), parameters, message checksum (message checksum) Message 3) (S25a, S25b, S25c). The split SMS message 1 formed from the first split data (SMS1 data) includes up to the original message length TPL. The data link layer (SME-DL) delivers the divided SMS messages (Split SMS message 1, Split SMS message 2, Split SMS message 3) to the physical layer (SME-PL) (S26a, S26b, S26c).

The data modulation / demodulation unit 14 of the physical layer (SME-PL) receives a split SMS message (Split SMS message 1, Split SMS message 2, Split SMS message 3) from the data link layer (SME-DL), and each split SMS. The message is FSK-modulated to form FSK signals (first FSK signal, second FSK signal, and third FSK signal) (S27a, S27b, S27c). The network interface unit 11 transmits the FSK signal under the control of the controller 16 (S28a, S28b, S28c).

The FSK signal (the first FSK signal, the second FSK signal, and the third FSK signal) is received at the network interface unit 11 of the receiving telephone (SME-S) physical layer (SME-PL), and the data modulation / demodulator 14 ) Demodulates the FSK signal to form a plurality of divided SMS messages (S31a, S31b, S31c). The plurality of divided SMS messages are transmitted to the control unit 16 of the data link layer (SME-DL) (S32a, S32b, S32c).

The control unit 16 of the data link layer (SME-DL) checks whether or not normal reception is performed by checking the input received SMS message. If the message is received normally, check the connection bit in the message information of the received SMS message. If the connection bit is " 1 ", it is recognized that the received SMS message is formed from the split data, and the parameters (parameters 1, 2, 3) in the received SMS messages (split SMS message 1, split SMS message 2 and split SMS message 3) are recognized. Parameter 3) is extracted (S33a, S33b, S33c). The order of split data is determined from the extracted parameters, and the original text message length TPL is extracted from the received SMS message including the first split data, that is, the split SMS message 1 (S33d) and transferred (S34d).

When the parameters extracted from the control unit 16 of the data link layer (SME-DL) (parameter 1, parameter 2, parameter 3) and the original message length (TPL) are input (S34a, S34b, S34c), the transport layer (SME- TL) extracts the split data and the PL from the PD of each parameter (S35a, S35b, S35c), and if the sum of the PLs extracted from all parameters is equal to the TPL, all the split data are combined in order to form a received message. If the sum of the PLs does not equal TPL (S37), it is treated as an SMS message reception error.

While the invention and its various functional components have been described in particular embodiments, the invention may be implemented in hardware, software, firmware, middleware, or a combination thereof, and the system, subsystem, components or sub-configurations thereof. It should be understood that they can be used as elements. If implemented in software, the elements of the invention are instructions / code segments for performing the necessary tasks. The program or code segments may be stored in a machine readable medium, such as a processor readable medium, a computer program product, or via a transmission medium or communication link by a computer data signal embodied in a carrier wave or a signal modulated by a carrier. Can be sent. Machine readable media or processor readable media may include any medium that can store or transmit information in a form readable and executable by a machine (eg, processor, computer, etc.).

In addition, while the present invention has been described in connection with some embodiments, it should be understood that various modifications and changes can be made within the scope of the invention to those skilled in the art to which the invention pertains. Also, such modifications and variations are intended to fall within the scope of the claims appended hereto.

1 is a schematic diagram showing a protocol hierarchy for transmitting and receiving SMS messages according to the European Telecommunication Standard Institute (ETSI) ES 201 912 v1.1.1 protocol together with the configuration of an SMS telephone.

2 is a schematic diagram illustrating a process of splitting and transmitting an SMS message between a sending SMS phone and a receiving SMS phone, according to an exemplary embodiment.

* Explanation of symbols for the main parts of the drawings

10: SMS phone 11: network interface unit

12: user interface unit 13: storage unit

14: data modulation and demodulation unit 15: voice call modulation and demodulation unit

16 control unit 17 switching unit

18: display unit SME-AL: application layer

SME-TL: Transport Layer SME-DL: Data Link Layer

SME-PL: Physical Layer

Claims (4)

As a method for sending and receiving SMS messages on an SMS phone, Receiving an outgoing SMS message from a user; Comparing a length of a message text of the outgoing SMS message with a reference length; If the message original text exceeds the reference length as a result of the comparison, dividing the message original text into a plurality of pieces to form a plurality of pieces of fragmented data in order; Forming a plurality of divided SMS messages by adding message information indicating whether to divide each of the plurality of divided data; And And transmitting the plurality of divided SMS messages. The method of claim 1, The message information includes a connection bit and a recipient number indicating whether to divide the message, wherein at least one message information of a plurality of pieces of divided data further comprises the length information of the message text, SMS message transmission and reception method of the SMS phone. The method of claim 2, Checking whether the received SMS message is a split SMS message using the connection bit included in the received SMS message; Receiving the plurality of divided SMS messages when the verification result is a divided SMS message; Extracting a plurality of partitioned data having an order from the received plurality of fragmented SMS messages; And combining the extracted plurality of pieces of divided data to form a received message. As an SMS phone, A user interface unit operable to receive at least an original message and a recipient number from a user; When transmitting the SMS message, if the length of the original text of the message sent through the user interface unit exceeds the reference length, the original text is divided into a plurality of pieces to form ordered divided data, and a message indicating whether or not to be divided into each divided data. Form a plurality of divided SMS messages by adding information, and upon receiving the SMS message, determine that the received SMS message is the divided SMS message based on the message information included in the received SMS message, and the received SMS message is the divided SMS message. A control unit configured to receive a plurality of divided SMS messages and form a received message by combining the plurality of divided SMS messages; And And a network interface unit for transmitting and receiving the plurality of divided SMS messages and the received SMS messages with an external network.

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