KR20010105652A - A method for transmiting an simply massage in a cdma system and apparatus - Google Patents

Abstract

An electrode arrangement for an array of electrically-controllable elements comprises a series of generally parallel electrodes (16) each for extending along a respective line of the electrically-controllable elements, and a series of driver lines (20(1-6)) for receiving driving signals. Each electrode is connected to a plurality of the driver lines each viaa respective impedance (26). Each electrode is so connected to at least three of the driver lines. Additionally or alternatively, the driver lines are so connected to the electrodes such that the driver lines cannot be split into a pair of arbitrary groups of the driver lines for which (a) each group has generally the same number of driver lines and (b) each electrode is so connected to at least one of the driver lines in one of the groups and to at least one of the driver lines in the other of the groups. This enables the ratio of the number of electrodes to the number of driver lines to be increased. The impedances in combination with a decoder (24) provide a decoding system which is arranged to perform a plural-stage process in determining which of the driver lines to stimulate in response to each electrode address value supplied to the decoder. This enables the network configuration of the impedances to be machine generated, and also enables the decoder to calculate on the fly which driver lines to stimulate in response to each address value. Furthermore, different resolutions may be provided to enable groups of the electrodes to be addressed simultaneously. The invention is applicable, for example, to liquid crystal displays, arrays of memory elements and arrays of sensors such as light-sensors.

Description

Method and apparatus for transmitting short message in mobile communication system {A METHOD FOR TRANSMITING AN SIMPLY MASSAGE IN A CDMA SYSTEM AND APPARATUS}

The present invention relates to a method and apparatus for transmitting a short message in a mobile communication system. More particularly, the present invention relates to a method for allowing a busy terminal to directly transmit a short message through a switch without using a short message processing unit (SMSC). It is about.

In recent years, due to the rapid spread of mobile communication, a large number of people carry a mobile communication terminal, and thus the amount of calls between terminals has increased. However, wireless telephones do not always have good sound quality due to changes in the call environment, quality variations of voice coders, and the like. Therefore, when trying to deliver important numbers or letters during a call through a voice call, it is often the case that important numbers or letters cannot be delivered due to the inaccuracy of the voice call, and means for eliminating these inconveniences are always available. It is a required situation.

Recently, a mobile communication network provides a short message transmission service technology to transmit a letter or a number, and a store-and-forward algorithm using a short message processing unit is generally applied.

As shown in FIG. 1, a general mobile communication system capable of providing various information using the short message as described above includes a terminal 10, a base station 20, a control station 30, an exchange station 40, and a home. The location register 50 and the short message processing part 60 are provided.

The terminal 10 transmits and receives a short message, and the base station 20 receiving the short message transmitted by the terminal 10 transmits the short message to the short message processor 60 under the control of the control station 30. The base station 20 receives the short message supplied from the short message processing unit 60 and transmits the short message to the terminal 10 under the control of the control station 30.

On the other hand, the exchange station 40 having received the location registration data of the terminal 10 transmitted through the control station 30 supplies the location registration data to the location registration device 50 to update the previously stored location registration data.

Then, when the terminal 10 makes a call, the switching center 40 checks the position of the called terminal from the home location register 50 and calls the incoming call through the base station with the terminal having the number to call. When the terminal answering the call answers, the call is connected.

However, in the existing short message processing method as described above, the short message processing method is transmitted in a store-and-forward manner. That is, since all short messages pass through the short message processing device, a transmission delay occurs. Therefore, when a short message is transmitted together with the voice call, the content of the voice call is not synchronized with the content of the short message processing device. Overload may be affected.

Accordingly, an object of the present invention is to provide a method for transmitting a short message in a mobile communication system, which can reduce the load of a short message generating device and a real time transmission of a short message. have.

The present invention for achieving the above object,

a) making a call by connecting a call between a calling terminal and a called terminal;

b) determining whether transmission of the short message in progress of step a) is selected;

c) transmitting the short message to be sent to the calling exchange when the calling terminal selects the short message transmission in step b);

d) transmitting the short message of step c) to the destination switching center using an information message between users in a common line signaling method; And

e) converting the contents transmitted through the inter-user information message sent to the destination switching center into a short message and transmitting the short message to the destination terminal;

f) transmitting the acknowledgment data of the short message generated from the called terminal in step e) to the called exchange, the calling exchange, and the calling terminal in order to confirm the transmission of the short message. .

Preferably, the present invention transmits the short message transmitted from the calling terminal in the order of the calling exchange station, the called exchange station, and the called terminal through the information message between users, and receives the short message, and receives the acknowledgment data transmitted from the called terminal, And the transmission of the calling exchange station and the calling terminal in order to confirm transmission of the short message.

In addition, the present invention,

A calling terminal in a call;

An originating control station for delivering a short message of the originating terminal input through an originating base station;

An originating exchange station for transmitting a short message input under the control of the originating control station using an information message between users in a common line signaling method;

A terminating exchange station which receives the information message between the users of the originating exchange station and transmits it in a short message in the order of the terminating control station and the terminating base station, and converts the contents of the information message between the users into a short message; And

And a terminating terminal for displaying a short message received through the terminating base station and transmitting acknowledgment data indicating completion of reception of the short message to the calling terminal.

According to the present invention, since the short message generated at the calling terminal in the call is transmitted directly to the called terminal by using the information message between the users of the common line signal system, the short message can be transmitted in real time, and the load of the short message generating device can be reduced. Can be.

1 illustrates a conventional mobile communication system.

2 is a diagram illustrating a communication network of a mobile communication system to which the present invention is applied.

3 is a flowchart illustrating a method of transmitting a short message in a mobile communication system according to the present invention.

<Explanation of symbols for main parts of drawing>

111: calling terminal 112: calling base station

113: originating control station 114: originating exchange station

115: home location register 121: incoming terminal

122: terminating base station 123: terminating exchange station

Hereinafter, the present invention will be described in more detail with reference to the following examples.

2 is a diagram illustrating a mobile communication system to which the present invention is applied. As shown in FIG. 2, a mobile communication system to which the present invention is applied includes an originating terminal 111, an originating base station 112, an originating control station 113, An originating switching station 114, and a home location register 115, a terminating terminal 121, a terminating base station 122, a terminating control station 113, and a terminating switching station 124.

Here, the call origination request signal generated from the originating terminal 111 is supplied to the originating exchange station 114 through the originating base station 112 and the originating control station 113, and the originating exchange station 114 is the home location register 115. Check the location of the called party's terminal.

Then, the location information of the called terminal supplied from the home location register 115 is supplied to the called exchange station 124, and the called exchange station 124 generates an incoming signal, which is the incoming control station 123 and The receiving base station 122 is transmitted in order to be supplied to the receiving terminal 121.

The terminating terminal 121 is supplied with an incoming base station 122, a terminating control station 123, and a terminating exchange station 124 in order of an incoming call response signal confirming receipt of an incoming call, and the terminating exchange station 124 is connected to a call. Generates a call connection request signal to request.

This call connection request signal is supplied to the originating switching center 114, and the originating switching station 114 generates a call connection notification signal, which is in the order of the originating control station 113 and the originating base station 112 in this order. It is supplied and supplied to the calling terminal 111. Through the above process, the calling terminal 111 and the called terminal 121 make a call.

When a short message transmission request is input from the calling terminal 111 during a call between the calling terminal 111 and the called terminal 121, the short message supplied from the calling terminal 111 is sent through the calling base station 112. It is supplied to the control station 113, and under the control of the originating control station 113, the short message is supplied to the originating exchange station 114. FIG.

The originating exchange station 114 uses the short message to send the short message using an interpersonal information message (USR: User Message) of the ISUP user unit (ISP), which is a common line signaling method used for call management. 124 is supplied.

The ISD user unit (ISUP) is commonly used in common line signaling for signal processing during a telephone exchange period, and is used for connection of a call and management of a call channel. That is, ISUP sends an initial address massage (IAM) for the first time to initiate a call during a call, receives an ACM (Address Complete Massage) from the destination exchange station, and then receives an address massage (ANM) from the destination exchange station. After the CON (Connect) message is sent, the normal call processing procedure for connecting the call channel is performed.

On the other hand, the short message processing service (SMS) is implemented and used in the purpose of receiving short data of 160 characters or less in a digital mobile phone, the mobile terminal to send a short message, a service for receiving a short message, It is widely used, such as a service for notifying a mobile terminal that there is a message in a voice mailbox. The functional apparatus in the mobile communication network which collectively transfers and processes these short messages is a short message processing unit (SMSC).

Recently, a broadcast message service has been introduced, which transmits a message in a broadcast form to all mobile telephone terminals within a base station by using an individual base station as a message overall unit. In order to classify these types of transport services into networks, separate identifiers are standardized and are shown in Table 1.

Short message transfer service identifier

SMS Teleserive Identifier Value Explanation 0 Do not use One Left for maintenance 2-4095 Passed to assign to this standard 4096 MPS extended Protocol Enhanced Serives (CMT-91) 4097 CDMA Cellular Paging Teleservice (CPT-95) 4098 CDMA Cellular Messageing Teleservice (CMT-95) 4099 CDMA Voice Mail Notification (VMN 95) 4100-32512 Reserved for assignment by this standard 32513 TDMA Cellular Messaging Teleservice (CMT-136) 32514 TDMA Cellular Paging teleservice (CPT-136) 32515-32639 Reserved for assignment by the standard for IS-136 MS based SMEs 32640-32767 Reserved for carrier specific teleservice for IS-136 MS-based SMEs 32768-49151 reserved for node specific Teleservies 49152-65535 reserved for carrier specific Teleservice

Here, the SMS Teleservice Identifier is an identifier provided by an international standard recommendation related to SMS service in order to define an attribute of a short message transmitted between network devices. Among these identifiers, any number of 32515-65535 left for reserve is selected and used as an identifier of a short message direct transmission service between an originating exchange station and a destination exchange station according to the present invention.

On the other hand, in the present invention, when sending a short message during a call, a user message of a common line signaling method is used as a method for directly transmitting in a correction period without passing through a short message processing unit (SMSC).

The user message for transmitting the short message to the ISDN user unit of the common line signaling method has a format as shown in Table 2.

TABLE 2

Parameter value type Length in bytes Message type 00101101 fixing One User to user information variable 2-130 Access transfer Selection 3 Reference Selection 7 Termination of optional parameters Selection One

The message type is a message identifier indicating that this message is a user part user message of ISDN of common line signaling. The user to user information is a field for storing information and data for transferring information between users. It uses a variable length that can be transmitted up to and including the content of a short message in this field and connects it to the exchange.

In addition, the access transmission field carries a calling party or a called party subaddress element. This field is used in the present invention to convey an information element value that identifies a block that handles direct transmission at exchanges that transmit short text.

The user part user message of the ISDN of the common line signaling system in which the short message is displayed is supplied to the destination switching center 124, and the destination switching center 124 converts the short message information of the user message into a short message to be received. The control station 123, the terminating base station 122, and the terminating terminal 121 are transmitted in this order to be transmitted to the terminating terminal 121.

Further, the called terminal 121 sends acknowledgment data indicating receipt confirmation of the short message, and the received acknowledgment data is in the order of the receiving base station 122, the called control station 123, and the called switching station 124. Is transmitted, and the acknowledgment data of the destination exchange station 124 is supplied to the source exchange station 114.

The originating exchange station 114 transmits the acknowledgment data in the order of the originating control station 113, the originating base station 112, and the originating terminal 111, and the originating terminal 111 that has received the acknowledgment data has its own. Check the reception status of the sent short message.

3 is a flowchart illustrating a short message transmission process of a mobile communication system according to the present invention. Referring to FIG. 2, a short message transmission process of the mobile communication system according to the present invention shown in FIG. 3 will be described.

Here, the originating control station 113 receiving the call origination request signal supplied from the originating terminal 111 through the originating base station 112 checks the location of the called terminal 121 and connects the call to make a call (S201). Proceed to

In the step S201 of making a call by connecting a call, after confirming the location of the called party's terminal stored in the home location register 115 and notifying the called terminal of the call connection request signal and the called signal according to the location information of the called terminal, the called party The call connection signal generated according to the incoming call signal and the call connection request response signal supplied from the terminal is supplied to the calling terminal 111 to make a call between the calling terminal 111 and the called terminal 121.

During the call, the originating control station 113 checks whether the short message transmission request has been input from the originating terminal 111 through the originating base station 112, and proceeds to step S202, and in step S202, the short message. Is determined, the flow proceeds to step S203 of supplying a short message to the originating switching center 114. The short message of the calling terminal 111 is supplied to the calling switching station 114.

The source switching station 114 proceeds to step S204 for converting the short message into a user-to-user message of a common line signaling method and transmitting the short message to a user message of a common line signaling method. The data is converted and transmitted to the destination switching center 124.

The destination switching center 124, having received the user message of the common line signaling method, proceeds to step S205 for converting the user message into a short message and transmitting it to the destination terminal 121. This step S205 is performed for this conversion. The received short message is transmitted in the order of the terminating control station 123, the terminating base station 122, and the terminating terminal 121 to be transmitted to the terminating terminal 121.

Further, the flow proceeds to step S206 of generating acknowledgment data indicating receipt confirmation of the short message supplied from the destination terminal 121, and the destination exchange station 124 receiving the acknowledgment data sends this acknowledgment data. The flow proceeds to step S207 for supplying to the terminal 111.

The acknowledgment data sent from the called terminal 121 is transmitted in the order of the called base station 122, the called control station 123, and the called exchange station 124 to be supplied to the calling exchange station 114, and the received acknowledgment data Receiving the originating terminal 111 checks the reception status of the short message sent by itself and terminates the program.

As described above, according to the present invention, by using a common line signaling user message used for connection of a call and management of a call channel, a short message of a caller is directly supplied to a called party's switching station, thereby transmitting a short message between terminals in a call. It is made in real time, and since the short message is transmitted directly between the exchange and the exchange, there is an effect of reducing the load of the existing short message generator.

In addition, although the present invention has been described in detail with reference to the above-described embodiments, the present invention is not limited thereto, and modifications and improvements are possible within the scope of ordinary knowledge of those skilled in the art.

Claims (4)

a) making a call by connecting a call between a calling terminal and a called terminal; b) determining whether the originating terminal selects the transmission of the short message during the step a); c) transmitting the short message to be sent to the calling exchange when the calling terminal selects to send the short message in step b); d) converting the short sentence of step c) into a user message of an ISD user part of a common line signaling system and transmitting the converted short message to a destination switching center; e) converting the user message transmitted to the destination exchange station in step d) into a short message and transmitting it to the called terminal; And f) transmitting the acknowledgment data of the short message generated from the called terminal in step e) in the order of the called exchange, the calling exchange, and the calling terminal, wherein the calling terminal confirms the transmission of the short message. Method of transmitting short message in mobile communication system. The method of claim 1, wherein in the d), the user message of the ISDN user unit of the common line signaling method is an access transmission identifier carrying one sub-address element of the teleservice identifier, the user-to-user information, the calling party, and the called party. Short message direct transmission method of a mobile communication system comprising a. A calling terminal in a call; An originating control station for delivering a short message of the originating terminal input through an originating base station; An originating exchange station for converting a short message input under the control of the originating control station into a user message of a common line signaling method and outputting the user message; A terminating exchange station that receives a user message of the originating exchange station, converts the received user message into the short message, and transmits the received message to the terminating control station and the terminating base station; And And a terminating terminal for displaying a short message received through the terminating base station and transmitting acknowledgment data indicating completion of reception of the short message to the originating terminal. 4. The short message of a mobile communication system according to claim 3, wherein the user message of the originating exchange includes an access transmission identifier carrying a sub-address element of one of a teleservice identifier, user-to-user information, a calling party and a called party. Message direct sender.