KR20030073893A - Realtime Voice Information Transmission Method for using Wireless Instant Messenger - Google Patents

Abstract

PURPOSE: A method for transmitting voice information in real time, using a WIM(Wireless Instant Messenger) is provided to transmit multipoint or one-to-one voice information in real time, using a push-to-talk scheme in a wireless terminal. CONSTITUTION: A WIM server system confirms whether authorization approval for a group communication is requested from a wireless terminal(402). If the authorization approval for the group communication is requested from the wireless terminal, the WIM server system selects a user of a foreground order according to a predetermined priority policy and invests authorization for the group communication to the selected user(403). The WIM server system confirms whether voice information is received from the user of the foreground order(404). If voice information is received, the WIM server system confirms a terminal destination address associated with a call-ID from a presence and group communication management system, and instantly transmits voice information by a multicasting scheme(405).

Description

Real time voice information transmission method for using wireless instant messenger

The present invention is a multi-party or one-to-one multi-way or push-to-talk method using user presence information in a wireless instant messaging system (hereinafter referred to as "messenger") based on a wireless Internet. The present invention relates to a real-time voice information transmission method using a wireless instant messenger (WIM) for transmitting voice information in real time to a user who participates in a daily conversation, and a computer-readable recording medium recording a program for realizing the method.

The present invention integrates a user state information management technology provided by a wireless instant messenger and a technology for transmitting voice information over the wireless Internet. A push-to-talk voice call method in wireless communication is provided. It is used in the Trunked Radio System (TRS) system using the existing radio.

Here, the Push-To-Talk method refers to a method of transmitting voice information immediately to a multiparty or one-to-one person by pressing a button as in a walkie talkie rather than calling a partner like a telephone to make a voice call. .

Recently, a technology for integrating such a push-to-talk method into a hardware by a mobile phone has been developed. However, such a hardware-based system has the disadvantage that the mobile phone must be the same product, and in general, wireless access equipment must be mounted on the mobile phone, which is expensive and cannot be easily marketed. In addition, it is limited geographically because it is limited to a specific frequency, there is a problem that it is difficult to freely group the call target users according to the use of the same frequency.

1 is a block diagram of a conventional wireless instant messaging system.

As shown in FIG. 1, the wireless instant messenger terminals 11 and 13 exchange messages and user status information with each other through the instant messenger server 12. In this case, information exchange between terminals using the wireless Internet protocol is limited to text information.

However, the wireless instant messaging system expected to be the next generation wireless killer application can efficiently and immediately communicate with the conversation partner using user presence information, but the information is exchanged with text information.

The present invention has been proposed to solve the above problems, and wireless instant for transmitting voice information in real time multi-party or one-to-one using a push-to-talk method in a wireless terminal It is an object of the present invention to provide a real-time voice information transmission method using a messenger (WIM) and a computer-readable recording medium recording a program for realizing the method.

1 is a block diagram of a conventional wireless instant messaging system.

2 is a diagram illustrating a configuration of a wireless instant messenger based group voice communication system to which the present invention is applied.

3 is a flowchart illustrating an operation of a wireless terminal in a method of transmitting real-time voice information using a wireless instant messenger according to the present invention.

4 is a flowchart illustrating a processing procedure of a WIM server system for group voice communication in a method of transmitting real-time voice information using a wireless instant messenger according to the present invention.

5 is a diagram illustrating an embodiment of a wireless instant message server system according to the present invention.

6 is a diagram illustrating an embodiment of a wireless terminal in a wireless instant messaging system for group voice communication according to the present invention.

* Explanation of symbols for the main parts of the drawings

21: wireless terminal A22: WIM server system

23: wireless terminal B24: wireless terminal C

The present invention for achieving the above object, in the real-time voice information transmission method using a wireless instant messenger (WIM) applied to the group voice communication system, a group voice call authority from the user's terminal to transmit the voice information to the conversation participants A first step of accepting the approval request; A second step of identifying, by the server, a call-ID transmitted from the user terminal in a push-to-talk manner, and identifying a terminal of a conversation participant to which voice information is to be transmitted; ; And a third step of multicasting the voice information of the user to the corresponding conversation participant terminal.

In addition, the present invention, when the group voice message transmission requests from the terminals of a plurality of conversation participants, the server determines the call sender of the highest priority in accordance with the priority policy, and the voice information of the call sender other conversation And further comprising a fourth step of transmitting the voice information to the participants in real time.

And, in the present invention, when a voice call request from the terminal of the user and the terminal of the conversation participant, a communication path is set between the terminal of the user sending a voice message and the terminal of the conversation participant receiving the voice message, the call path And a fifth step of performing a multi-party or one-to-one voice call between the user (sender) and the conversation participant (sender).

The present invention also provides a group voice communication system having a processor, comprising: a first function of accepting a group voice call right approval request from a terminal of a user who wants to transmit voice information to a conversation participant; A second function of identifying, by the server, a call-ID transmitted from the user terminal in a push-to-talk manner, and identifying a terminal of a conversation participant to which voice information is to be transmitted; ; And a computer-readable recording medium having recorded thereon a program for realizing a third function of multicasting the voice information of the user to the corresponding conversation participant terminal.

In addition, the present invention, when the group voice message transmission requests from the terminals of a plurality of conversation participants, the server determines the call sender of the highest priority in accordance with the priority policy, and the voice information of the call sender other conversation A computer readable recording medium having recorded thereon a program for further realizing a fourth function of transmitting voice information in real time to a participant is provided.

And, in the present invention, when a voice call request from the terminal of the user and the terminal of the conversation participant, a communication path is set between the terminal of the user sending a voice message and the terminal of the conversation participant receiving the voice message, the call path The present invention provides a computer-readable recording medium that records a program for further realizing a fifth function of performing a multi-party or one-to-one voice call between a user (sender) and a conversation participant (receiver).

The present invention utilizes the presence information of an instant message system operating in a wireless terminal supporting the wireless Internet to transmit a voice communication service in real time in a multi-party or one-to-one manner in a push-to-talk manner. Grouping, addressing, and push-to-talk transmission technology using packetization and presence information for multi-party voice information processing, and voice information transmitted from wireless terminals in real time on the Internet It is intended to provide a multicasting transmission technique for transmitting to multiple destination terminals.

That is, the present invention provides a multi-party instant voice call method similar to a TRS radio in a push-to-talk manner using a software technology, that is, an internet protocol, in a wireless terminal. The difference with the general radio is that group communication conversation participants can be freely grouped regardless of the number or region, and there is no distance or frequency limitation and it is seamlessly integrated and interworked with the existing Internet wired / wireless integrated communication service.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exemplary configuration diagram of a group instant communication system based on a wireless instant messenger to which the present invention is applied.

As shown in FIG. 2, a terminal is intended to send voice information to a plurality of users in real time using a wireless instant messaging system.

First, the wireless terminal A 21 checks buddy information when a push-to-talk request is made from a user, and then requests an immediate group call from the WIM server system 22 through the WIM client.

Here, WIM stands for Wireless Instant Messenger and refers to a wireless instant messaging system.

The WIM server system 22 receives an authorization message 201 from the presence and group management system of the WIM server system 22 when there is no immediate call request from other wireless terminals B and C 23 and 24 belonging to the group. And call-ID (CALL-ID) 202 to the wireless terminal A (21).

For example, when the wireless terminal A 21 sends a response to the user that the Push-To-Talk request has been accepted, the user starts a voice call (207). The digital voice information from the user is packetized together with the voice call session address using the CALL-ID in the wireless terminal A 21 and transmitted to the WIM server system 22 through the packet processor and the WIM client.

Here, the voice information is encapsulated with the CALL-ID and the voice call session address and transmitted to the WIM server system 22. The WIM server system 22 confirms the CALL-ID and transmits the voice information to the wireless terminal B 23 and the wireless terminal C 24 participating in the group voice call through the message transmission system. The user of the wireless terminal A 21 terminates the group voice call by releasing the Push-To-Talk button after the call is over.

Accordingly, when there are call requests 201, 203, and 205 simultaneously from the wireless terminal user belonging to the group communication, the WIM server system 22 transmits the call permission to the highest priority message according to the given priority policy. Message), and a non-call message (authorization message) 203 and 205 to next-order users.

On the other hand, when a voice call is requested from the user's terminal and the conversation participant's terminal, a call path is set between the user's terminal sending the voice message and the terminal of the conversation participant receiving the voice message. It is obvious that multi-party or one-to-one voice calls are possible between participants.

3 is a flowchart illustrating an operation of a wireless terminal in a method of transmitting real-time voice information using a wireless instant messenger according to the present invention.

As shown in FIG. 3, in order to transmit voice information in real time using a wireless instant messenger, a user first checks buddy information provided by a messenger to make a voice call to a group using a messenger service. .

Here, the buddy information refers to a list of registered chat partners to communicate with the user. On the other hand, Buddy means a user's friends.

Accordingly, the WIM server stores information about the corresponding user in a buddy directory database, and sends the current presence information to relevant users who want to know information about group composition for a specific user.

On the other hand, looking at the group voice communication process in the wireless terminal, the first user wants to check the Buddy information sent from the WIM server (301) and then check whether the users belonging to the group is available (302).

The verification result 302, if available (Available) requests the group voice call authorization authorization in the Push-To-Talk manner to the WIM server (303), and checks whether there is an acknowledgment response from the WIM server (304).

As a result 304, if there is an acknowledgment response from the WIM server, voice information is packetized through the terminal and transmitted to the server. In this case, CALL-ID information for multi-party group communication received from the WIM server together with voice information from the user is transmitted. It is also encapsulated and sent together to the WIM server (305).

On the other hand, if the conversation counterpart is not available to receive the call or if the group call request is rejected from the server, after the other party's voice information transmission is finished, the call may be attempted again in a Push-To-Talk manner.

4 is a flowchart illustrating a process of processing a WIM server system for group voice communication in a method of transmitting real-time voice information using a wireless instant messenger according to the present invention.

As shown in FIG. 4, the WIM server queries all users who want to know the user's information and checks whether each user is connected to the server through the wireless Internet. The information is transmitted to the desired user (401). The message arriving at the other party's terminal changes the Buddy information state by the packet data processor in the corresponding terminal. This process goes through the same process when the user logs out, ensuring that user status information is consistently delivered.

Subsequently, the mobile terminal checks whether there is a permission approval request for group communication from the wireless terminal (402). If there is no request, the process proceeds to a process (401) of transmitting the current status information of the user to a relevant related user. The user of the highest priority is selected according to a predetermined priority policy and the authority for group communication is given to the selected user (403). For reference, it is not possible to grant this specific policy in software in the TRS system.

Subsequently, it is checked whether voice information is received from an authorized highest priority user (404).

If the verification result 404, the voice information is received from the presence and group communication management system to check the terminal destination address associated with the CALL-ID immediately transmits the voice information in a multicasting method (405).

As a result of the verification (404), if no voice information is received and there is no response from the authorized user for a predetermined time (for example, 5 seconds) (404), the authority is revoked and the cancellation information is notified (406).

After the group communication session ends, the change is made by reflecting the status information on the user's mobile phone related to the group communication (step 407).

5 is a diagram illustrating an embodiment of a wireless instant message server system according to the present invention.

In the figure, "501" represents a Buddy directory, "502" represents a group communication session manager, "503" represents a presence manager, "504" represents a voice information real-time multicasting transmission unit, and "policy manager". , A protocol suite for communicating with a real-time operating system and a client, respectively.

As shown in FIG. 5, when a voice information transmission request is received, the group communication session manager 502 checks the address of recipients to which voice information is sent by referring to the group CALL-ID received from the user, and then voice information real-time multicasting. When sent to the transmitter 604, it immediately sends the voice information to the receivers in a multicasting method.

In the present invention, it is important to utilize the presence information provided by the wireless instant messaging system in order to efficiently transmit voice information to various users included in the group in real time. In the case of requesting permission for group communication from several other users at the same time, priority can be determined according to the policy set by the users. For example, if time is a measure of priorities, priority may be given to the first requester, but it is obvious that other factors (eg, group leaders, etc.) may determine priority.

6 is a diagram illustrating an embodiment of a wireless terminal in a wireless instant messaging system for group voice communication according to the present invention.

In the drawing, "61" is Push-To-Talk command receiving unit, "62" is Buddy information retrieval unit, "63" is Buudy information processing unit, "64" is WIM client, "65" is voice packet data processing unit (Packetization & De-packetization) is shown respectively.

Here, the WIM client 64 includes a signaling transmission / reception module 641, a user interface 642, a user state list processor 643, a voice packet transmission / reception module 644, and a jitter buffer management module 645.

The operation of the wireless terminal in the wireless instant messaging system for group voice communication having the above structure will be described in detail as follows.

When requesting a voice call right from the terminal, first check the buddy information by checking the buddy information and then press the push-to-talk button. Then, the signaling transmission / reception module 641 refers to the user status list processing unit 643 and the WIM server. You will be contacted to let them know if they are allowed to call.

When the voice information transmission is allowed, the voice packet data processing unit 65 receives the voice information of the user and transmits the voice information to the WIM server through the voice packet transmission / reception module 644.

In this case, in the case of a one-to-one conversation, voice information may be directly transmitted to the other party without passing through a WIM server in a peer-to-peer format. In addition, when transmitting information, the signaling transmission / reception module 641 may be constructed using a Session Initiation Protocol (SIP) and an extension thereof, which is an Internet Engineering Task Force (IETF) international standard. It is built using wireless internet protocols (IP, TCP, UDP, RTP).

On the other hand, when the receiving wireless terminal receives the voice information from the WIM server, the depacketization process of the voice packet data processor 65 first parses the received voice information, and the sender address is a user state list processor. The pure voice information is sent to the jitter buffer management module 645. At this time, the user status list processing unit 643 checks the sender address and displays it on the user interface 642, and the jitter buffer management module 645 continues the voice information until sufficient voice information is stored in the buffer. To accumulate. When the voice information is sufficiently filled in the jitter buffer, the jitter buffer management module 645 transmits the received voice information to the voice processing device (codec and speaker) of the terminal to listen to the voice information. It becomes possible.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

The present invention as described above, by using the wireless instant messenger as well as the general string exchange by providing a multi-party voice communication service of the radio type using the TRS over the Internet, it is possible to maximize the utility of the wireless mobile terminal.

In other words, the present invention, by using the user presence information provided by the wireless instant messenger can be used as a new communication service in a variety of fields, such as factory, airport, logistics, transportation industry and school by providing a flexible software software immediately instantaneous voice communication Do. Therefore, it is expected that this will not only improve the quality of public information and communication services due to the effects of the new invention, but will also greatly contribute to the improvement of industrial competitiveness by increasing national productivity.

Claims (10)

In the real-time voice information transmission method using a wireless instant messenger (WIM) applied to a group voice communication system, A first step of accepting a group voice call authority approval request from a terminal of a user who wants to transmit voice information to a conversation participant; A second step of identifying, by the server, a call-ID transmitted from the user terminal in a push-to-talk manner, and identifying a terminal of a conversation participant to which voice information is to be transmitted; ; And A third step of multicasting the voice information of the user to the corresponding conversation participant terminal; Real-time voice information transmission method using a wireless instant messenger comprising a. The method of claim 1, When requesting the group voice message transmission from the terminals of a plurality of conversation participants, the server determines the call transmitter of the highest priority according to a priority policy and transmits the voice information of the call sender to other conversation participants in real time. 4th step Real-time voice information transmission method using a wireless instant messenger further comprising. The method of claim 2, The fourth step, When the group voice information arrives at the server, it is determined whether or not the group voice communication confirmer, the destination counterpart address is determined according to the result, and the multi-casting is performed in real time. The method according to claim 1 or 2, When a voice call is requested from the terminal of the user and the terminal of the conversation participant, a call path is set between the terminal of the user who sends the voice message and the terminal of the conversation participant who receives the voice message, and the user (sender) through the set call path. 5th step of conducting a multi-party or one-to-one voice call between conversation participants (called party) Real-time voice information transmission method using a wireless instant messenger further comprising. The method of claim 1, The conversation participant, Real-time voice information transmission method using a wireless instant messenger characterized in that the at least one counterpart user belonging to the group for receiving the voice information. The method of claim 1, The voice information, Real-time voice information transmission method using a wireless instant messenger, characterized in that the voice, call-ID (CALL-ID), voice call session address. The method of claim 1, The second step, According to the user's status information received from the server, the other party to address the voice communication through the terminal of the conversation participant by grouping (addressing), using the presence information stored in the server for multi-party group voice communication Real-time voice information transmission method using a wireless instant messenger characterized in that the grouping (addressing). In a group voice communication system having a processor, A first function of accepting a group voice call permission approval request from a terminal of a user who wants to transmit voice information to a conversation participant; A second function of identifying, by the server, a call-ID transmitted from the user terminal in a push-to-talk manner, and identifying a terminal of a conversation participant to which voice information is to be transmitted; ; And A third function of multicasting the voice information of the user to the corresponding conversation participant terminal; A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 8, When requesting transmission of the group voice message from a plurality of conversation participants' terminals, the server determines the call sender of the highest priority according to a priority policy, and provides the voice information of the call sender to other conversation participants in real time. 4th function to send to A computer-readable recording medium that records a program for further realization. The method according to claim 8 or 9, When a voice call is requested from the terminal of the user and the terminal of the conversation participant, a call path is set between the terminal of the user who sends the voice message and the terminal of the conversation participant who receives the voice message, and the user (sender) through the set call path. Fifth function for conducting multi- or one-to-one voice call between conversation participants (called party) A computer-readable recording medium that records a program for further realization.