KR100792809B1 - Method for the computer-aided formation of a conference-session invitation message, method for the computer-aided creation of a conference session, method for the computer-aided processing of messages in a conference session, creation unit of a conference-session invitation message, conference-session creation unit and communication terminal equipment - Google Patents

Abstract

The present invention provides a method for constructing a conference session invitation message with computer assistance; A method for creating a conference session with computer assistance; A method for processing messages with computer assistance in a conference session; A generating unit of a meeting session invitation message; A conference session generating unit; And a communication terminal device. According to the invention, priority information is added to the meeting session invitation message. Using this priority information, at least one priority used to cause the conference session to which the at least one participant communication terminal should be invited to be executed by the at least one participant communication terminal is preset.

Description

How to Configure Computer Support for Meeting Session Invitation Messages, How to Create Computer Support for Meeting Sessions, How to Handle Computer Support for Messages in Meeting Sessions, Meeting Session Invitation Message Generation Units, Meeting Session Generation Units, and Communication Terminal Devices FORMATION OF A CONFERENCE-SESSION INVITATION MESSAGE, METHOD FOR THE COMPUTER-AIDED CREATION OF A CONFERENCE SESSION, METHOD FOR THE COMPUTER-AIDED PROCESSING OF MESSAGES IN A CONFERENCE SESSION, CREATION UNIT OF A CONFERENCE-SESSION INVITATION MESSAGE, AND COMMUNICATION TERMINAL EQUIPMENT}

1 is a block diagram illustrating the architecture of a push-to-talk over cellular communication system in accordance with an embodiment of the present invention.

2 is a block diagram illustrating a communication protocol stack in accordance with push-to-talk over cellular.

3 is a message flow diagram in which a message flow is shown in accordance with an embodiment of the invention.

<Explanation of symbols for the main parts of the drawings>

100: PoC communication system

101: control PoC server

102: communication network

103: PoC Client

104: PoC Client

105: PoC Client

106: Participation PoC Server

107: participating PoC server

108: participating PoC server

109: air interface

110: air interface

111: air interface

112: interface

113: interface

114: interface

115: interface

116: location server

117: interface

118: Group Management Server

119: interface

120: presence server

121: interface

122: interface

200: block diagram

201: modem

202: interface

203: protocol stack

204: interface

205: interface

206: PoC Client

207; Group Management / Presence Client

208: interface

209: interface

210: PoC application unit

211: interface

212: user interface

213: interface

300: message flow diagram

301: a mobile wireless communication terminal device

302: first SIP-invitation message

303: IMS core network

304: second SIP invitation message

305: First SIP result message

306: Second SIP result message

307: SIP-100-Training Message

308: First SIP Positive Response Message

309: second SIP positive response message

The present invention provides a method for constructing a conference session invitation message with computer assistance; A method for creating a conference session with computer assistance; A method for processing messages with computer assistance in a conference session; A generating unit of a meeting session invitation message; A generating unit of a conference session; And a communication terminal device.

Push-to-Talk over Cellular (PoC) is a communications service that Nextel has been offering its customers in the United States for many years now under the trade name "Direct Connect." In Europe, push-to-talk over cellular communications services were embodied in an industrial consortium (compare [1]). Other activities are being initiated by the standardization bodies Open Mobile Alliance (OMA) and Third Generation Partnership Project (3GPP).

Push-to-talk over cellular is provided using a packet-switched communication network, but the Internet protocol (IP) is used as a network communication protocol in the push-to-talk over cellular architecture. A central PoC server is provided for each push-to-talk over cellular communication session (also called PoC group session), which is also referred to as a control PoC-server. PoC clients, during a PoC group session, each establish a communication connection with a controlling PoC server via a so-called participating PoC server assigned to them. For each signaling communication connection between a PoC client and a participating PoC server, and between each participating PoC server and a controlling PoC server, for example, an Internet Protocol Multimedia Subsystem (IMS) is used, which IMS is a signaling communication protocol. As so called, the so-called Session Initiation Protocol (SIP) described in [2] is used. In the case of a user data communication connection between a PoC client and a participating PoC server and between a participating PoC server and a controlling PoC server, a communication protocol such as a real time communication protocol (RTP) described in [3] is usually used.

As described in [1] and so far specified in the Open Mobile Alliance, for push-to-talk over cellular, the participant communication terminal device and thus the user may be concurrently located in multiple sessions. Because only one data flow can be output from each participant communication terminal device at a time at any time, the participant communication terminal user who is invited to the current communication session is, in the category of the communication session, high for himself. It may be determined whether it is a communication session of priority (“primary session”) or a communication session of low priority (“secondary session”).

Up to now, the priority of the “primary session” could be assigned to exactly one communication session, and the priority of the “secondary session” could be assigned to many other communication sessions. Therefore, if data of a plurality of communication sessions arrive at a participant communication terminal device at a time, the data of the communication session having a higher priority are output to the participant communication terminal device, and other data of the communication session (s) having a lower priority. Are rejected and thus disappear for the participant communication terminal device.

In addition, as known from [4], an optional so-called “session status notification” function is provided for push-to-talk over cellular. Using this feature, information about which state the PoC group session activates can be communicated to the PoC-user. One of the things that can be in this state is who is active as a PoC group session participant. If a PoC user subscribes to such a communication service, the user knows the number and types of PoC-participant-communication terminal devices participating in the PoC group session at that moment. This option is typically realized using a subscribe / notify message that is SIP-extended as described in [5].

[6] describes a so-called IETF-conferencing framework based on the communication protocols Internet Protocol (IP) and Transmission Control Protocol (TCP).

It is an object of the present invention to ensure that messages that are evaluated as having high priority by entities generating conference sessions in the category of multiple or numerous conference sessions running simultaneously are less rejected.

The object is a method for constructing, with computer assistance, a meeting session invitation message having features in accordance with the independent claims; A method for creating a conference session with computer assistance; A method for processing messages with computer assistance in a conference session; A generating unit of a meeting session invitation message; A conference session generating unit; And a communication terminal device.

For a method for computer-assisted configuration of a meeting session invitation message, identification information for identifying a meeting session to which at least one participant communication terminal device should be invited is added to the meeting session invitation message. In addition, priority information for pre-specifying at least one priority used to cause the conference session to which the at least one participant communication terminal device should be invited to be executed by the at least one participant communication terminal device is also included in the conference. Is appended to the session invitation message.

For a method for creating a conference session with computer assistance, identification information for identifying a conference to which at least one participant communication terminal device should be invited is added to the conference session invitation message; In addition, priority information for pre-specifying at least one priority used to cause the conference session to which the at least one participant communication terminal device should be invited to be executed by the at least one participant communication terminal device is also described. Added to the conference session invitation message; The meeting session invitation message is constructed. The meeting session invitation message is transmitted to at least one participant communication terminal device, and the meeting session is generated using the at least one participant communication terminal device according to the priority information.

For a method for processing messages with computer assistance in a meeting session, a meeting session invitation message is received. This message may include identification information for identifying a conference session to which at least one participant communication terminal device should be invited; In addition, priority information for pre-specifying at least one priority used to cause the conference session to which the at least one participant communication terminal device should be invited to be executed by the at least one participant communication terminal device; Include. Messages in the conference session are processed according to priority information.

The generating unit of the meeting session invitation message is configured in such a manner that identification information for identifying the meeting session to which the at least one participant communication terminal device should be invited can be added to the meeting session invitation message. The generating unit of the conference session invitation message may further include at least one priority used to cause the conference session to which the at least one participant communication terminal device is to be invited is executed by the at least one participant communication terminal device. Priority information used for presetting is configured in such a way that it can be added to the conference session invitation message.

The meeting session generating unit includes a generating unit for generating the aforementioned meeting session invitation message, as well as a sending unit for transmitting the meeting session invitation message to the at least one participant communication terminal device. In addition, according to the priority information, a conference session control unit for providing a conference session using the at least one participant communication terminal device is provided.

The communication terminal device includes a terminal device conference session control unit for controlling a conference session on the terminal device side. In addition, a receiving apparatus for receiving a meeting session message; as well as a determining unit for determining priority information from the received meeting session invitation message is provided. The received conference session invitation message may include identification information for identifying a conference session to which the communication terminal device is invited; as well as at least used by the communication terminal device to cause the conference session to which the communication terminal device is invited to be executed by the communication terminal device. And priority information used to preset one priority. The terminal device conference session control unit is configured in such a way that the message (s) are processed according to the (each) priority information in the category of the conference session.

As can be seen from the point of view of the present invention, to be sure, for invited participant communication terminal devices and participants who should be invited to a meeting accordingly, the priority to be applied is preset in the category of reception of messages at the meeting, Depending on the alternative, the choice that the participant may optionally attend to receive the messages, for example in the form of minimum priority or in the form of maximum priority, that is to say a set of multiple possible priorities This is preset to the invited participant communication terminal devices and their participants. Thus, in the category of participants' invitations to a communication conference that is already based on a session, the priority used to allow the conference to be executed is preset so that the participant communication terminal device, for example, as a “primary session”, or It is also preset whether or not to set up a meeting session as a “secondary session”.

In this way, a message containing data that is evaluated as a high priority (in other words having a high priority) by a communication terminal device invited to a meeting is, for example, an entire conference in which high priority data are exchanged. In comparison with conferences selected as low priority for such entities, rejection in the event of a message conflict between messages of multiple conferences is suppressed in a simple and reliable manner.

As a result, very simple prioritization control in the category of the meeting is certainly possible from the point of view of the participant creating each meeting. In addition, the invited participant communication terminal device (s) can very simply determine whether or not they are also ready to accept the invitation received respectively at the meeting having a preset priority and join the meeting accordingly.

Typical embodiments of the invention are presented from the dependent claims. Implementations of the invention described below are, as far as reasonable, conferred as well as the aforementioned methods for constructing a conference session invitation message with computer assistance, creating a conference session, and processing messages in the conference session. A generating unit, a meeting session generating unit, and a communication terminal device.

The priority information indicates a number of different priorities, such as the minimum priority used to indicate the minimum priority used to run the conference session, and / or the maximum priority used to cause the conference session to run. It may include the maximum priority used to.

In other words, any set of separate different priorities (in other words, different priority values) may be included in the priority information, such that a participant invited to a meeting session may, from time to time, from a number of predetermined priorities. One priority can be selected. Priorities need not be multiple priorities that are linked and contiguous in the category of predefined and generally available priority sets. Instead, individual priorities can be selected and grouped into one set or multiple sets transmitted as priority information. In addition, a minimum or maximum priority that clearly indicates a number of priorities that range from generally available priorities to a minimum priority, or that represent a plurality of priorities that generally range from the available priorities to a maximum priority. Ranking may also be provided.

As such, numerous priorities may be used for the meeting as a whole. For example, to ensure that each higher priority meeting is prioritized compared to lower priority meetings, for example, when a meeting message conflict occurs between messages of meetings of different priorities. In order to ensure that each higher priority meeting is sent to the participant communication terminal device and each lower priority meeting is suppressed or rejected, there are three that can be assigned to each meeting. Or more priorities, for example five or more priorities may be used.

From at least one participant communication terminal device, a meeting session invitation message may be received, and if the invitation for the meeting session is accepted by the at least one participant communication terminal device described above, the meeting is performed according to the priority information. It can be executed in a communication terminal device.

According to another embodiment of the present invention, the priority information includes a plurality of different priorities, and the participant communication terminal device selects one priority from the plurality of priorities described above, and then the conference is selected priority. It is executed in the participant communication terminal device according to the ranking.

In this way, although the meeting's generator ensures that only those priorities that meet its own requirements are generally assigned to the meeting, invited participants continue to choose (at least limited) their choice of priorities. It is then achieved that the participant can then assign the selection to each conference at the receiver side.

Therefore, the minimum or maximum requirement that is surely targeted in conjunction with the meeting on one side can be preset in terms of the participant creating the meeting, and it is nevertheless guaranteed that some flexibility exists in the invited participant communication terminal device.

A meeting session is a half-duplex conference session, ie only one participant each or a large number of participants (usually only the moderator of a conference) is clear. Communication rights are obtained in such a way as to be assigned, and only participants with their respective communication rights can submit data to the meeting, and participants who do not obtain their respective rights only receive data submitted to the communication session. It can be executed as a conference session capable of receiving only.

The conferencing session may be carried out in accordance with the IETF conferencing standard, eg according to the IETF conferencing framework described in [6].

The conferencing session may be executed in accordance with the push-to-talk communication protocol in the alternative method, for example in accordance with any other push-to-talk communication protocol in the alternative method, in accordance with the Direct Connect communication service as provided by Nextel, USA. . Thus, for example, the conference session can be executed according to a push-to-talk over cellular communication protocol, for example as standardized by the Standardization Organization Open Mobile Alliance and the Standardization Organization Third Generation Partnership Project. In an alternative method, the push-to-talk over cellular communication protocol described in [1] may be used.

The meeting session invitation message is encoded according to Session Initiation Protocol (SIP) in accordance with an embodiment of the present invention.

An aspect of the present invention is clearly that in the invitation to a meeting session, such as a PoC session, for example, it can be found in the signaling of the lowest priority or for example the highest priority. The conferencing session thereby is governed by the participant communication terminal device, each accepting the invitation in a cohesive manner with the acceptance of the invitation, and evaluated by the participant communication terminal device. Priorities signaled in this manner limit the priority that can be freely selected when not signaled, and intelligently set priorities of the participant or participant's participant communication terminal device without assigning priorities. It plays a role.

Embodiments of the present invention are shown in the drawings and described in more detail below.

In the following the invention is described according to an example of a push-to-talk over cellular communication system, with the well being noted that in any communication system in which the invention can be provided a communication conference between a plurality of participants, for example a half-duplex communication conference. It can be realized.

According to an alternative embodiment, the communication system is constructed, for example, according to the IETF's Conference Framework Standard, for example as described in [6]. In another communication system, described in detail below, the communication protocols and message formats used respectively are adapted accordingly, by the participant invited to the meeting at the meeting, or by the participant communication terminal device of this participant. The general idea that at least one priority value (in the alternative method, multiple priority values or numerous priority values) is assigned is commonly applied. In this regard, the priority value is transmitted to each of the invited communication terminal devices in the category of the invitation to the conference, and the communication terminal device receives the messages transmitted in the category of the conference upon accepting the invitation to the conference. Process according to the priority indicated by.

Push to Talk Over Cellular (PoC) is a communications service that Nextel has been offering to its customers in the US under the name of "Direct Connect." According to the push-to-talk over cellular, the user or transmitter communication terminal device, after the selection of the receiver and the operation of the special PoC input keys, can:

· Language

· Simultaneous to multiple receivers

According to the half-duplex method

send.

In the category of PoC conferencing, the language data is already distributed over the communication network (also referred to as streaming) while the users of the communication terminal devices who have acquired the communication rights in the respective assigned manners are also referred to as Is sent to another participant. Clearly, push-to-talk over cellular is similar to a typical CB-radio from the user's point of view, but the receiver can be reached by using transmitter technology in at least one mobile wireless communications network worldwide. It expands to the extent that it can be activated. The precondition in this case is that each receiver is connected in an activated manner in each mobile wireless communication network, that is to say in an "online" state.

The architecture of a PoC communication system 100 according to an embodiment of the present invention is shown in FIG. In the case of push-to-talk over cellular, packet switched domains (PS-domains) are used for data transmission, i.e. packet switched data transmission is provided, as a network protocol and, above all, Internet protocol (IP) and transmission control protocol (TCP). ) Is used. There is a central PoC server 101 disposed in the communication network 102 per PoC group session, referred to hereinafter as a PoC conference session, with each central PoC server for a communication session also referred to as a control PoC server.

In addition, the communication network includes so-called participating PoC servers 106, 107 and 108, which are explicitly assigned to PoC clients 103, 104 and 105 for each PoC client 103, 104 and 105, respectively. 103, 104, and 105 establish a communication connection with the control PoC server 101 via participating PoC servers 106, 107, 108 respectively assigned to them during the PoC conference session. Thus each PoC client 103, 104, 105 includes a respective air interface 109, 110, 111 facing each participating PoC server 106, 107, 108, with each participating PoC server 106. , 107, 108, each interface; and, accordingly, communication connections 112, 113, 114 facing the control PoC server 101. The control PoC server 101 further includes: a location server interface 115 facing the location server 116; A group management interface 117 opposite the group management server 118; And a presence interface 119 facing the presence server 120. In addition, the group management server 118 again includes an interface 121 facing the location server 116 as well as an additional interface 122 facing the presence server 120.

In accordance with an alternative embodiment of the present invention, a location server 116; In addition to the group management server 118 and the presence server 120, there is again provided a server for a further targeted communication service in some cases.

Each PoC client 103, 104, 105 is replaced in each mobile wireless communication terminal device, such as a mobile telephone, or in any other mobile wireless communication terminal device, such as a notebook, not shown in FIG. 1. Is realized by integrating in a personal digital assistant (PDA), personal computer, and the like.

Each air interface 109, 110, 111 located between the PoC clients 103, 104, 105 and each participating PoC server 106, 107, 108 may, for example, be used when a UMTS communication system is used. Radio access network (RAN); Core network (CN); And a mobile wireless communications network using an IP multimedia subsystem (IMS). Another realization method, for example using a conventional fixed network communications network (PSTN), is provided according to an alternative embodiment of the invention. In an alternative method, any other mobile wireless communication system can also be provided, in which a push-to-talk communication service is realized, for example under the use of an IMS. Thus, for example, depending on the alternative method, GPRS (Universal Packet Radio Service) may be used as the mobile radio network, or in the alternative method, the CDMA2000 communication system already provided in the United States may be used. This CDMA communication system uses a so-called MMD (Mobile Media Distribution) communication protocol for signaling to provide a communication conference.

As described above, between each PoC client 103, 104, 105 and each participating PoC server 106, 107, 108, or each participating PoC server 106, 107, 108 and a controlling PoC server ( IMS, for example, is used for the signaling communication connection between 101). According to this IMS, Session Initiation Protocol (SIP) is used as the signaling protocol as described in [2]. For data communication connection between each PoC client 103, 104, 105 and the participating PoC servers 106, 107, 108, or between the participating PoC servers 106, 107, 108 and the control PoC server 101, In other words, for communication connections where user data is transmitted in the category of each PoC conference, protocol RTP is used as described in [3].

2 illustrates in block diagram form 200 a schematic diagram of a communication protocol stack provided in accordance with push-to-talk over cellular.

At the physical protocol layer, a modulator / demodulator (modem) 201 is provided. Such a modulator / demodulator is combined with a number of protocol stacks contained within a unit for encoding or decoding data using, for example, a session initialization protocol, using a bidirectional interface 202 and / or a hypertext transfer protocol (HTTP). (Indicated by block 203 in FIG. 2) is combined with a unit for encoding or decoding data. A communication unit located at the top layer of the protocol stack 203 according to the communication model is connected to each PoC client 206 or group-managed / presence, using bi-directional interfaces 204 and 205. Connect with client 207. This group-management / presence client 207, in its own terms, is connected to a PoC application unit 210 that realizes PoC applications, using respective bi-directional interfaces 208 or 209. The PoC client 206 is also communicatively connected to the user interface 212 using the bidirectional interface 211. The user interface 212 is connected to the group-management / presence client 207 via another bidirectional communication connection 213.

As described in [1] and as set forth so far in the Open Mobile Alliance (OMA), for push-to-talk over cellular, participants or their participant communication terminal devices may be simultaneously located in multiple communication sessions. According to an alternative embodiment of the invention, the communication sessions in which the communication terminal device is located may be configured in various types. Thus, for example, the communication terminal device may be located in a push-to-talk over cellular communication session and further in a communication session according to the IETF conferencing framework, as described in [6].

In a communication session, typically only one data flow can be output on each communication terminal device at a time, so that the participant creating the communication session assigns a priority to the conference session. If data arrive at multiple conference sessions at the same time, the data of the conference session having the highest priority are output to each communication terminal device.

In accordance with an embodiment of the present invention, two priorities are provided, that is, a high priority used to declare a meeting session as a "primary session" and a lower priority used to declare a meeting session as a "secondary session". Ranking is provided. Priority of the "primary session" may be assigned to exactly one conference session according to this embodiment of the present invention, and priority of the "secondary session" may be assigned to multiple conference sessions as the case may be.

According to an alternative embodiment of the invention, additional priorities are added to the PoC communication surface. Thus, for example, priorities of 1 to 5 (ie priorities 1, 2, 3, 4, 5) may be introduced, with priority 1 being the highest priority of each conference session and priority 5 being the respective The lowest priority of the meeting session. According to the prior art, the conference session priorities may be selected by each participant or by each participant communication terminal device, unlike those selected by other participants in the same conference session. The session may obtain a very high priority by the participant on one side in a manner of being assigned and a very low priority by the participant on the other side in a manner of being assigned. As a result, the data flow is no longer frequently output to the participant who has selected a lower priority, whereas the other participant or the other communication terminal device of the same conference session receives the data flow and acquires it in the form of a diagram. do.

If a PoC user invites the other participant to a given conference session created by the user, the PoC user does not assign all participants of the conference session a priority that is lower than the predetermined lowest priority of the conference session. You can also think of what you want to ensure. Therefore, the importance of the conference session is signaled as well. The invitation may be made with a high lowest priority to the main communication. An invitation may be made to the communication used for discourse without having a lowest priority. As further described in further detail, for example, a top priority may be indicated, as the case may be, and with this top priority, the invited participant may be able to conduct each meeting session rather than the primary communication. Ensure that you do not classify higher.

In general for push-to-talk over cellular, there are two different possibilities that a push-to-talk over cellular user can be a PoC participant located in a PoC group in a conference session. Push to talk over cellular users either join an existing PoC conference session or accept an invitation for a conference session.

3 illustrates a method flow diagram 300 in accordance with an embodiment of the present invention. According to this method, an invitation to a PoC conference to be generated by the first PoC client 103 realized in the first mobile radio communication terminal device 301 is realized. To initiate a PoC session, also referred to hereinafter as a PoC conference session, an initiator, in other words, the first mobile wireless communication terminal device 301 generates and sends a first SIP invitation message 302, and 1 Using the SIP invitation message 302, a PoC conference session to be initialized is generated, and within the first SIP invitation message 302, a PoC conference session in addition to the respective conference identification information (session ID) should be invited. Participants are directed or included.

According to this embodiment of the invention, in particular, further prioritization in the message field provided therefor is incorporated together in the first SIP invitation message 302, but in the alternative method the user of the SIP invitation message 302 is provided. Further prioritization in the data field area is incorporated into the first SIP invitation message 302. For a more schematic diagram, only the priority of the "primary session" is used in the following and assigned to the conference session. The assignment is then made using an extension of the private header popup area, for example provided in accordance with an embodiment of the invention. The first SIP invitation message 302 then has the following typical structure:

************************************************** *********

INVITE sip: bob@Biloxi.com SIP / 2.0

Via: SIP / 2.0 / UDP pc33.atlanta.com; branch = z9hG4bKnashds8

Max-Forwards: 70

To: Bob <sip: bob@biloxi.com>

From: Alice <sip.alice@atlanta.com>; tag = 1928301774

Call-ID: a84b4c76e66710

Cseq: 314159 INVITE

Contact: <sip: alice@pc33.atlanta.com

Content-Type: application / sdp

Content-Length: 142

tb_priority: 2

c = IN IP6 5555 :: aaa: bbb: ccc: ddd

a = forced_session_prio primary

m = audio 3456 RTP / AVP 97

a = rtpmap: 97 AMR

a = rtcp: 5560

m = application 2000 udp TBCP

a = fmtp: TBCP queuing = 1; timestamp = 1

************************************************** *********

Depending on the alternative, priority is fully integrated into the SDP portion (session description protocol).

In the following table, possible formats are typically presented according to examples of the present invention.

************************************************** *********

INVITE sip: bob@Biloxi.com SIP / 2.0

Via: SIP / 2.0 / UDP pc33.atlanta.com; branch = z9hG4bKnashds8

Max-Forwards: 70

To: Bob <sip: bob@biloxi.com>

From: Alice <sip.alice@atlanta.com>; tag = 1928301774

Call-ID: a84b4c76e66710

Cseq: 314159 INVITE

Contact: <sip: alice@pc33.atlanta.com

Content-Type: application / sdp

Content-Length: 142

c = IN IP6 5555 :: aaa: bbb: ccc: ddd

a = forced_session_prio primary

m = audio 3456 RTP / AVP 97

a = rtpmap: 97 AMR

a = rtcp: 5560

m = application 2000 udp TBCP

a = fmtp: TBCP queuing = 1; tb_priority = 2; timestamp = 1

************************************************** *********

The first SIP invite message 302 is sent to the IMS core network 303, which generates a second SIP invite message 304 on its side and sends it to the control PoC server 101. According to the alternative method, the IMS core network 303 sends the PoC server 101 without changing the first SIP invitation message 302.

After obtaining the first SIP invitation message 302, the IMS core network 303 also generates a SIP 100 teaching message 307. The IMS core network then sends the SIP 100 teaching message 307 to the first mobile wireless communication terminal device 301. Using the SIP 100 training message, the first mobile wireless communication terminal device 301 is notified that the IMS core network 303 is currently attempting to establish a targeted PoC conference session.

Then, as is known from the prior art, the PoC server 101 uses the first SIP invite message 302, while having a PoC conference session with the participant (s) indicated in the second SIP invite message 304. Will be configured.

It is well known in this association that priority information is included in the second SIP invitation message 304. Corresponding SIP invite messages are then generated by the PoC server 101 and sent to the participant communication terminal device to be invited (not shown) and also sent to the participant communication terminal device to be invited to the conference session. Within, the priority provided in the first SIP invitation message 302 is also included.

Accordingly, each invited participant communication terminal device (s) or the PoC clients 104, 105 of the terminal device are notified of the target lowest or highest priority of the conference session. At this time, if each participant communication terminal device accepts the invitation for the conference session, the conference session is guaranteed by the participant communication terminal device.

If the invitation to the meeting session is accepted by one or more or all invited PoC participant communication terminal devices, the PoC server 101 creates a meeting session, and a first SIP result message (SIP final response). Information about the successful creation of a PoC conference session using 305 is communicated to the IMS core network 303. This IMS core network 303 processes the first SIP result message 305 on its side, and generates a second SIP result message (SIP final response) 306 therefrom. The IMS core network 303 also transmits the second SIP result message 306 to the mobile wireless communication terminal device initiating a PoC conference session.

After obtaining the second SIP result message 306, the first mobile wireless communication terminal device 301 generates a SIP Acknowledgment Message 038 and sends it to the IMS Core Network 303. The IMS core network 303 generates a second SIP acknowledgment message 30 on its side and transmits it to the PoC server 101. The PoC server 101 provides additional communication terminal devices with information on the successful configuration of the PoC conferencing session after obtaining the second SIP acknowledgment message 309 and thus configures the target PoC conferencing session.

Then, the PoC conference session proceeds, and each communication terminal device to which the PoC conference session participates realizes the conference session on the terminal device side using the priority indicated in the first SIP invitation message.

The above-mentioned processing method is described in more detail according to the application scenario evident in the following.

It can be assumed that a taxi company uses a PoC meeting session for mutual communication between taxi drivers and for communication between each taxi driver and a taxi center. If the taxi driver is still participating in other PoC meeting sessions, these PoC meeting sessions should be received with a lower priority, that is, with the priority of the “secondary session” of another meeting session. For this reason, each taxi center and each PoC client of the taxi center invites each taxi driver with the highest priority as the minimum priority for each PoC meeting session and each of the PoC clients of the communication terminal devices of the taxi drivers. do.

Private conversations between three taxi drivers, which are additionally organized in the central communication session, are used purely for discourse. For this reason, the first participant invites two additional participants to the additional PoC meeting session, that is, the second participant taxi driver and the third participant taxi driver. The first participant taxi driver, or the PoC client of the first participant driver, in the invitation, i.e. in each SIP invitation message, communicates with the highest priority lower than the priority of the aforementioned conference session of the taxi center. The two priorities are signaled to the two participant taxi drivers. In this case, the PoC meeting session may also be received with low priority, without manual setting of the second participant taxi driver or the third participant taxi driver. Received participants, likewise, signal the importance or non-significance of the immediately invited PoC meeting session.

It is well known in this regard that the priority indicated in the SIP invitation message is not changed by the communication terminal devices receiving the invitation or by PoC clients of these terminal devices.

In short, an aspect of the present invention is that, upon invitation to a session conference or PoC session conference, the minimum or highest priority may be signaled by the initiator of the session conference. If the participant accepts the invitation for the meeting session, the participant cannot select a priority lower than the minimum priority signaled at the invitation, or more than the highest priority signaled at the invitation. High priority cannot be selected.

The advantages of this approach are, for example:

Signaling the importance of the session with the minimum priority already indicated at the time of invitation;

• ensuring that the importance of the meeting session is not underestimated by two or three participants;

By allowing the invitation to be made at a lower top priority, it allows an invitation to a session that does not interfere with other communications or communication sessions.

• If the participant does not assign himself / herself priority, then accepting the minimum or highest priority makes more sense than the standard value set by selecting all meeting sessions with the same priority.

Verification Quotation:

[1] Push-to-Talk over Cellular (PoC); architecture; PoC-Distribution 1.0, Architecture V.1.1.0, August 2003;

[2] J. Rosenberg et al., Network Working Group, Request for Comments 3261, SIP: Session Initiation Protocol, June 2002

[3] H. Schulzrinne et al., Network Working Group, Request for Comments 3550, RTP: Transport Protocol for Real-Time Applications, July 2003;

[4] J. Rosenberg and H. Schulzrinne, Session Initiation Protocol (SIP), Event Package for Conference State, draft-ietf-sipping-conference-package-01, June 2003;

[5] J. Rosenberg, IETF Internet Draft, Framework for Meetings Using Session Initiation Protocol, draft-ietf-sipping-conferencing-framework-00.txt, May 3003;

According to the present invention, it is possible to ensure that messages that are evaluated as having high priority by the entity creating the conference session in the category of multiple or numerous conference sessions running simultaneously are less rejected.

Claims (14)

A method for configuring a conference session invitation message with computer assistance, the method comprising: Identification information for identifying a conference session to which at least one participant communication terminal device should be invited is added to the conference session invitation message; At least one priority used to enable the meeting session to which the at least one participant communication terminal device is to be invited can be executed at the at least one participant communication terminal device against further concurrent sessions in progress. Priority information used for presetting is added to the conference session invitation message. A method for creating a conference session with computer assistance, · Regarding the construction of the meeting session invitation message, The meeting session invitation message is appended with identification information for identifying a meeting session to which at least one participant communication terminal device should be invited; At least one priority used to cause the meeting session to which said at least one participant communication terminal device is to be invited to be executed by said at least one participant communication terminal device against further ongoing conference sessions at the same time. Priority information used to pre-set is added to the conference session invitation message, The meeting session invitation message is configured; The meeting session invitation message is sent to the at least one participant communication terminal device; The conference session is generated using the at least one participant communication terminal device according to the priority information. A method for processing messages with computer assistance in a conference session, the method comprising: A meeting session invitation message is received, wherein the meeting session invitation message is received with at least one participant communication terminal device as well as identification information for identifying a meeting session to which the at least one participant communication terminal device should be invited. Priority information used to preset at least one priority used to enable the conference session to be executed by the at least one participant communication terminal device described above against further ongoing conference sessions concurrently; The messages of the conference session are processed according to the priority information. The method of claim 1, The priority information is: A number of different priorities; or A minimum priority used to indicate the minimum priority used to cause the conference session to run against additional ongoing conference sessions concurrently; or A maximum priority used to indicate a maximum priority used to cause the meeting session to run against additional ongoing meeting sessions at the same time. The method of claim 2, The meeting session invitation message is received by the at least one participant communication terminal device; And when the invitation to the conference session is accepted by the at least one participant communication terminal device, the conference is executed in accordance with the priority information at the participant communication terminal device. The method of claim 5, The priority information comprises a number of different priorities; The participant communication terminal device selects one priority from a plurality of priorities; Conferencing is carried out at the participant communication terminal device according to the selected priority. The method of claim 1, And the conference session is executed as a conference session in a half-duplex communication manner. The method of claim 1, Wherein the conference session is executed according to the IETF conference communication standard. The method of claim 1, And the conference session is executed according to a push-to-talk communication protocol. The method of claim 9, And the conference session is executed according to a push-to-talk over cellular communication protocol. The method of claim 1, And the conference session is encoded according to a session initiation protocol. In the generating unit of the meeting session invitation message, Identification information for identifying a conference session to which at least one participant communication terminal device should be invited may be added to the conference session invitation message; At least one priority used to ensure that the meeting session to which the at least one participant communication terminal device is to be invited can be executed by the at least one participant communication terminal device described above against further ongoing conference sessions in progress. Priority information that is used to preset the information may be added to the conference session invitation message; Generating unit of the conference session invitation message. In the conference session generating unit, Generating unit of a meeting session invitation message, Identification information for identifying a meeting session to which at least one participant communication terminal device should be invited may be added to the meeting session invitation message, At least one priority used to ensure that the meeting session to which the at least one participant communication terminal device is to be invited can be executed by the at least one participant communication terminal device described above against further ongoing conference sessions in progress. A generating unit of said meeting session invitation message, configured in such a way that priority information used to pre-set can be added to the meeting session invitation message; A sending unit for sending said session meeting invitation message to said at least one participant communication terminal device; And a conference session control unit for providing a conference session using the at least one participant communication terminal device according to the priority information. In the communication terminal device, A terminal device conference session control unit for controlling the conference session at the terminal device side; A receiver for receiving a meeting session message; At least one of the identification information for identifying the conference session to which the communication terminal device is invited as well as the conference session to which the communication terminal device is invited can be executed by the communication terminal device against further conference sessions in progress at the same time; A determining unit for determining priority information from a received conference session invitation message, including priority information used to preset one priority; And the terminal device conferencing session control unit is configured in a manner of processing messages in a category of conferencing sessions according to the priority information.

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