WO2005062569A1 - Floor control for multimedia push-to-talk applications - Google Patents

Floor control for multimedia push-to-talk applications Download PDF

Info

Publication number
WO2005062569A1
WO2005062569A1 PCT/IB2004/004012 IB2004004012W WO2005062569A1 WO 2005062569 A1 WO2005062569 A1 WO 2005062569A1 IB 2004004012 W IB2004004012 W IB 2004004012W WO 2005062569 A1 WO2005062569 A1 WO 2005062569A1
Authority
WO
WIPO (PCT)
Prior art keywords
content
floor
user
type
user apparatus
Prior art date
Application number
PCT/IB2004/004012
Other languages
French (fr)
Inventor
Philippe Gentric
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to JP2006543648A priority Critical patent/JP2007514228A/en
Priority to US10/596,323 priority patent/US20080285532A1/en
Priority to EP04801322A priority patent/EP1695512A1/en
Priority to BRPI0417432-1A priority patent/BRPI0417432A/en
Priority to CN2004800370997A priority patent/CN1894925B/en
Priority to MXPA06006465A priority patent/MXPA06006465A/en
Publication of WO2005062569A1 publication Critical patent/WO2005062569A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/423—Loop networks with centralised control, e.g. polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/4061—Push-to services, e.g. push-to-talk or push-to-video
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Definitions

  • - Fig.5 is a schematic representation of a method according to the invention, comprising several independent implementations of a floor control procedure for the transmission of several types of content.
  • a database of user information 30 comprising IP address and group membership as well as other information such as subscribed services/applications, rights, profiles, etc.
  • the database 30 is hosted on another device designed to communicate with the application server 14.
  • a duplicator 40 is used, which receives the IP packets from the user apparatus having the floor and duplicates the RTP payloads towards the other user apparatuses of the group.
  • the duplicator 40 can be hosted either by the application server 14 or by another device in the network.
  • a user apparatus 10 according to the invention comprises:
  • - Floor Grant notification by the application server to the user apparatus that it has been granted the floor
  • - Floor Taken notification by the application server to all user apparatuses, except the user apparatus that has been granted the floor, that the floor has been granted to another user apparatus;
  • a floor control procedure is used for managing access to the floor for the transmission of different types of content.
  • a first implementation of the floor control procedure is used to manage floor access for the transmission of voice
  • a second separated implementation of the same floor control procedure is used to manage floor access for the transmission of video content.
  • several implementations of the floor control procedure are used separately within the framework of a single SIP session for managing access to the floor for different types of content. This means that the session has to be established only once.
  • the user apparatus 10j can start transmitting content of type C 2 .
  • the floor control procedure FC_2 is executed as described above for managing access to the floor by all user apparatuses for the transmission of content of type C 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Computer And Data Communications (AREA)

Abstract

The invention relates to a Push-to-Talk application enabling the transmission of different types of content, for example voice content and video content. In Push-to-Talk applications, only one user of a group can talk at a time and a floor control procedure is used to control access to the floor by the users of the group. According to the invention, separate implementations of the floor control procedure are used withi the framework of one single session for managing access to the floor for the transmission of different types of content. For example a first implementation of the floor control procedure is used to manage floor access for the transmission of voice content and a second independent implementation of the floor control procedure is used to manage floor access for the transmission of picture content.

Description

FLOOR CONTROL FOR MULTIMEDIA PUSH-TO-TALK APPLICATIONS
FIELD OF THE INVENTION The present invention relates to a communication system comprising a plurality of user apparatuses, a communication network, and at least one application server for implementing an application between a group of at least two user apparatuses, said application allowing transmission of at least a first type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group. The invention also relates to a user apparatus and an application server for use in such a communication system. The invention also relates to a method of allowing transmission of a first type of content from one user apparatus of a group to the other user apparatus or apparatuses of said group. The invention has interesting applications in the field of mobile communication, in particular mobile telephony.
BACKGROUND OF THE INVENTION Such an application is known as Push-to-Talk on Cellular (PoC). The PoC application is described, for example, in the White Paper "Push-to-Talk over Cellular - Real-time always-on voice service" published by Nokia (ht1p://www.nokia.com/poc/PoC_WP_A4.pdf). As explained in Nokia's White Paper, PoC is a half-duplex 'always-on' one-to- one/one-to-many 'voice over IP' communication service implemented in a cellular network. The PoC service operates as follows: users can create talk groups; within a group, only one user can speak at a time; the floor is requested by pushing a dedicated key and it is granted on a first-come, first-served basis. Usually, the mechanism that arbitrates the users' requests for the right to speak is referred to as "floor control" and an established connection between user apparatuses where the PoC service is implemented is referred to as a "session". As mentioned in Nokia's White Paper, text chat can be added to the real-time voice communication. Unlike voice, text chat does not require any floor control mechanism. All user apparatuses can send text at any moment. The received text is displayed on-screen in received order with history: there is no floor conflict. It is one of the objects of the present invention to propose an extension of such a service in the specific case where several types of content are transmitted that require a floor control mechanism.
SUMMARY OF THE INVENTION A communication system according to the invention is defined in claims 1 to 3. A user apparatus according to the invention is defined in claims 4 to 6. An application server according to the invention is defined in claims 7 to 9. A method according to the invention is defined in claim 10. According to the invention, when at least two types of content are transmitted, separate floor control procedures are implemented for controlling the floor access for each of said two types of content. As a result, a first user apparatus of the group can have the floor at a given time for transmitting said first type of content to the other apparatus or apparatuses of the group, and a second user apparatus of the same group can have the floor at the same time for transmitting said second type of content to the other user apparatuses of the group. The first and the second user apparatus may be two different user apparatuses. The invention allows transmission of different types of content by different user apparatuses in a single session. For example, the invention allows transmission of video from a user apparatus A to the group, and simultaneous comments by any other user apparatus of the group to the group (including user A). For example, when the transmitted video is a live video captured by a camera incorporated in the user apparatus A, a user B may provide voice comments relating to camera guidance (please turn left/right; could you zoom in on that please...). In a preferred embodiment, the floor control mechanism is based on a request/grant protocol implemented between the application server and the user apparatuses.
BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects of the invention will be further described with reference to the following drawings:
- Fig.l is a schematic representation of a first example of a system according to the invention;
- Fig.2 is a block diagram of an application server according to the invention;
- Fig.3 is a schematic representation of a second example of a system according to the invention;
- Fig.4 is a block diagram of a user apparatus according to the invention;
- Fig.5 is a schematic representation of a method according to the invention, comprising several independent implementations of a floor control procedure for the transmission of several types of content.
DESCRIPTION OF EMBODIMENTS Fig.l is a schematic representation of a system comprising a plurality of user apparatuses 10i (i is an integer), a communication network 12, and at least one application server 14. For example, the user apparatuses are mobile phones, and the network 12 is a cellular network, for example, a GPRS network or a UMTS network. The application server is responsible for implementing a communication application between a group of user apparatuses 10i (i=l,..., N with N>1). According to the invention, this application allows transmission of at least: - a first type of content (for example, voice content) from one user apparatus 10ql to the other user apparatuses of the group 10; (i=l,..., N; i≠ql), and
- a second type of content (for example, still or moving pictures content) from one user apparatus 10q2 to the other user apparatuses of the group 10; (i=l,...,N; i≠q2). The transport protocol is RTP over UDP over IP, which means that the content (previously encoded) is transported in the payload of a RTP packet, the RTP packet being transported as the payload of a UDP datagram which in turn is transported as the payload of an IP packet (RTP is defined in IETF RFC1889; UDP is defined in IETF RFC 768). In Fig.l, the first and the second type of content are transmitted in IP packets Pi and P2, respectively. As shown in Fig.2, the application server 14 comprises:
- transmission/reception means 20 for transmitting/receiving IP packets over the network 12;
- a processing unit 21 comprising a processor 22, a program memory 24 for storing one or more programs 25 comprising instructions for implementing the above-mentioned communication application when executed by the processor 22, and a data memory 26 for storing data;
- a database of user information 30 comprising IP address and group membership as well as other information such as subscribed services/applications, rights, profiles, etc. In a first alternative embodiment not represented here, the database 30 is hosted on another device designed to communicate with the application server 14. In a second alternative embodiment represented in Fig.3, a duplicator 40 is used, which receives the IP packets from the user apparatus having the floor and duplicates the RTP payloads towards the other user apparatuses of the group. The duplicator 40 can be hosted either by the application server 14 or by another device in the network. As shown in Fig.4, a user apparatus 10; according to the invention comprises:
- a screen 50, a keyboard 52, a microphone 54, a loudspeaker 56, a camera 57 and a power supply 58;
- a transmission/reception circuit 60 for transmitting/receiving IP packets over the network 12; - a processing unit 70 comprising a processor 72, a program memory 74 for storing one or more programs 75 comprising instructions for implementing the above-mentioned communication application when executed by the processor 72, and a data memory 76 for storing data. The user apparatus of Fig.4 has a first and a second dedicated key K\ and K2 to be activated in order to request the floor for the transmission of the first and the second type of content, respectively. In Fig.4, the keys K\ and K are hard keys. In an alternative embodiment not represented here, the dedicated keys Kj and K are soft keys. In particular, the programs 25 and 75 comprise instructions for managing sessions and instructions for implementing a floor control procedure for each session. For example, the session is established and managed by using the IETF-defined
Session Initiation Protocol (SIP). In particular, the SIP protocol allows group creation and attachment control, negotiating the codec to be used during the session for each type of content, and determining the IP addresses and the UDP ports to be used for the transport of the RTP packets during the session. Use of the SIP protocol is not mandatory; other alternative protocols could be used instead of SIP. The floor control is an arbitration process that is used for allocating the floor to one user apparatus at a time during a session. An example of such a floor control procedure for voice content is described in the Technical Specification "Push-to-Talk over Cellular (PoC) User Plane; Transport Protocols. PoC Release 1.0" dated August 2003 by Ericsson, Motorola, Nokia and Siemens (http://www.ericsson.com/multiservicenetworks/distr PoC_specifications.ZIP). The floor control procedure described in this Technical Specification comprises the transmission/reception of floor control messages between the application server 14 and the user apparatuses 10; for implementing the following floor control protocols:
- Floor Request/Grant at session initiation;
- Floor Request/Grant during session;
- Floor Release; - Floor Revoke.
The floor control messages defined in this Technical Specification are:
- Floor Idle: notification by the application server that no user apparatus has the floor so that the floor is available upon user request;
- Floor Release: notification by the user apparatus to the application server that it is releasing the floor;
- Floor Request: request by the user apparatus to the application server in order to get access to the floor;
- Floor Grant: notification by the application server to the user apparatus that it has been granted the floor; - Floor Taken: notification by the application server to all user apparatuses, except the user apparatus that has been granted the floor, that the floor has been granted to another user apparatus;
- Floor Deny: notification by the application server to a user apparatus that it has been denied the floor; - Floor revoke: notification by the application server to the user apparatus having the floor that it is revoked (used for pre-emption or for preventing overly long use by one user apparatus). The floor control messages are transported through UDP in a RTCP APP payload (RTCP stands for RTP Control Protocol; it is defined in IETF RFC1889; APP packets are Application-defined RTCP packets). More details about these floor control protocols and floor control messages can be found in the above-mentioned Technical Specification. Use of the floor control procedure defined in the above-mentioned Technical Specification is not mandatory; other alternative procedures could be used instead. According to the present invention, separate implementations of such a floor control procedure are used for managing access to the floor for the transmission of different types of content. For example, a first implementation of the floor control procedure is used to manage floor access for the transmission of voice, and a second separated implementation of the same floor control procedure is used to manage floor access for the transmission of video content. With the invention, several implementations of the floor control procedure are used separately within the framework of a single SIP session for managing access to the floor for different types of content. This means that the session has to be established only once. During the session establishment: - the group is constituted (members are selected by the user who is initiating the session; invitations are transmitted to the selected members; selected members accept or do not accept the invitation; members who accept the invitation are added to the group), and - a configuration is defined for each type of content that may be transmitted during the session (for example, an audio codec is defined as well as a video format and a video codec). Fig.5 is a schematic representation of an example of a method according to the invention, comprising two independent implementations of a floor control procedure for the transmission of two types of content. In step 100, a user apparatus 10; initiates a SIP session. For example, the session is initiated through the menu of the user apparatus 10;. In step 110, key K; of a user apparatus 10k of the group is depressed for the transmission of a first type of content . In step 130, a first implementation FC_1 of the floor control procedure is initiated by transmitting an UDP/RTCP/APP/Floor_Grant message from the application server 14 to the user apparatus 10k and an UDP/RTCP/APP/Floor_Taken message to the other user apparatuses of the group. Upon reception of the Floor_Grant message, the user apparatus 10 can start transmitting content of type . In step 140, the floor control procedure FC_1 is executed as described above for managing access to the floor by all user apparatuses for the transmission of content of type Ci. In step 150, key K2 of a user apparatus 10j belonging to the same group is depressed for the transmission of a second type of content C2 (the user apparatus 10j may be any user apparatus of the group including user apparatus 10;). In step 160, a second implementation FC_2 of the floor control procedure is initiated by transmitting an
UDP/RTCP/APP/Floor_Grant message from the application server 14 to the user apparatus 10j and an UDP/RTCP/APP/Floor_Taken message to the other user apparatuses of the group. Upon reception of the Floor_Grant message, the user apparatus 10j can start transmitting content of type C2. In step 170, the floor control procedure FC_2 is executed as described above for managing access to the floor by all user apparatuses for the transmission of content of type C2. With respect to the above-described system, user apparatus, application server and method, modifications or improvements may be proposed without departing from the scope of the invention. The invention is thus not limited to the examples provided. The number of separated implementations of the floor control procedure is not restricted to two. For example, the communication application could allow transmission of data in addition to voice and moving pictures, and a third implementation of the floor control procedure could be implemented to manage floor access for the transmission of data. The number of separate implementations of the floor control procedure is generally dependent on the number of different types of content to be transmitted in the application. The invention is not limited to the use of the transport and session initiation protocols mentioned in the description (UDP, RTP, RTCP, SIP). Alternative protocols may be used. The floor control protocols and messages mentioned in the description are those that have been proposed in the Technical Specification "Push-to-Talk over Cellular (PoC) User Plane; Transport Protocols. PoC Release 1.0" of August 2003. Different messages and protocols could be used. Additional messages could be defined. The user apparatus and the application server may comprise elements other than those described with reference to Fig.2 and Fig.3. Use of the verb "comprise" and its conjugations in the text and claims does not exclude the presence of means or steps other than those stated. Use of the article "a" or "an" for designating an element does not exclude the presence of a plurality of such elements.

Claims

1. A communication system comprising a plurality of user apparatuses, a communication network and at least one application server for implementing an application between a group of at least two user apparatuses, said application allowing transmission of at least a first type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group and a second type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group, said user apparatuses and said application server comprising user floor control means and server floor control means, respectively, for separately managing floor access by said user apparatuses for the transmission of said first type of content and said second type of content, such that only one user apparatus can have the floor at a given time for transmitting said first type of content, and only one user apparatus can have the floor at the same time for transmitting said second type of content.
2. A communication system as claimed in claim 1, wherein said user floor control means comprise means for transmitting/receiving floor control messages to/from said application server, and said server floor control means comprise means for transmitting/receiving floor control messages to/from said user apparatuses so as to implement a request/grant protocol.
3. A communication system as claimed in claim 1, wherein said first type of content is voice content and said second type of content is picture content.
4. A user apparatus for use in a communication system comprising a plurality of user apparatuses, a communication network and at least one application server for implementing an application between a group of at least two user apparatuses, said application allowing transmission of at least a first type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group and a second type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group, said user apparatus comprising user floor control means intended to cooperate with said application server for separately managing floor access by said user apparatuses for the transmission of said first type of content and said second type of content, such that only one user apparatus can have the floor at a given time for transmitting said first type of content, and only one user apparatus can have the floor at the same time for transmitting said second type of content.
5. A user apparatus as claimed in claim 4, wherein said user floor control means comprise means for transmitting/receiving floor control messages to/from said application server so as to implement a request/grant protocol.
6. A mobile telephone as claimed in claim 4, comprising a camera for capturing moving pictures, a first key for requesting the floor for transmitting said moving pictures, and a second key for requesting the floor for transmitting voice.
7. An application server for use in a communication system comprising a plurality of user apparatuses, a communication network and at least one application server for implementing an application between a group of at least two user apparatuses, said application allowing transmission of at least a first type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group and a second type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group, said application server comprising server floor control means intended to cooperate with said user apparatuses for separately managing floor access by said user apparatuses for the transmission of said first type of content and said second type of content, such that only one user apparatus can have the floor at a given time for transmitting said first type of content, and only one user apparatus can have the floor at the same time for transmitting said second type of content.
8. An application server as claimed in claim 7, wherein said server floor control means comprise means for transmitting/receiving floor control messages to/from said user apparatuses so as to implement a request/grant protocol.
9. An application server as claimed in claim 7, wherein said first type of content is voice content and said second type of content is picture content.
10. A method of allowing transmission of a first type of content from one user apparatus of a group to the other user apparatus or apparatuses of said group and a second type of content from one user apparatus of said group to the other user apparatus or apparatuses of said group, said method comprising a first implementation of a floor control procedure for managing floor access by said user apparatuses for the transmission of said first type of content and a second implementation of said floor control procedure for managing floor access by said user apparatuses for the transmission of said second type of content, such that only one user apparatus can have the floor at a given time for transmitting said first type of content, and only one user apparatus can have the floor at the same time for transmitting said second type of content.
PCT/IB2004/004012 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications WO2005062569A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2006543648A JP2007514228A (en) 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications
US10/596,323 US20080285532A1 (en) 2003-12-11 2004-12-03 Floor Control for Multimedia Push-To-Talk Applications
EP04801322A EP1695512A1 (en) 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications
BRPI0417432-1A BRPI0417432A (en) 2003-12-11 2004-12-03 communication system, user device for use in a communication system, application server for use in a communication system, and transmission method
CN2004800370997A CN1894925B (en) 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications
MXPA06006465A MXPA06006465A (en) 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03300261 2003-12-11
EP03300261.9 2003-12-11

Publications (1)

Publication Number Publication Date
WO2005062569A1 true WO2005062569A1 (en) 2005-07-07

Family

ID=34707290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/004012 WO2005062569A1 (en) 2003-12-11 2004-12-03 Floor control for multimedia push-to-talk applications

Country Status (9)

Country Link
US (1) US20080285532A1 (en)
EP (1) EP1695512A1 (en)
JP (1) JP2007514228A (en)
KR (1) KR20060126991A (en)
CN (1) CN1894925B (en)
BR (1) BRPI0417432A (en)
MX (1) MXPA06006465A (en)
TW (1) TW200529617A (en)
WO (1) WO2005062569A1 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037569A1 (en) * 2005-08-09 2007-02-15 Infineon Technologies Ag Communication right assigning method for push-to-talk-over-cellular communication system, involves denying communication right if right is already distributed to subscriber, and giving communication right if right is not distributed
WO2007041943A1 (en) * 2005-10-10 2007-04-19 Huawei Technologies Co., Ltd. A METHOD, SYSTEM AND TERMINAL FOR PROCESSING PoC SERVICE
EP1781054A1 (en) * 2005-10-28 2007-05-02 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for push to talk type service
WO2007058469A1 (en) 2005-11-15 2007-05-24 Samsung Electronics Co., Ltd. System, method, and user equipment for managing the floor for multimedia communication service in poc system
EP1804422A1 (en) * 2005-12-28 2007-07-04 Fujitsu Limited A communication method, communication system, replaying device and communication device
WO2007081172A1 (en) * 2006-01-13 2007-07-19 Lg Electronics Inc. Processing media data for sip based session service
KR100748695B1 (en) 2006-02-17 2007-08-13 삼성전자주식회사 Method and system for serving different pta system by one session
WO2007095849A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Method, system and apparatus for assigning media transmitting right of session setting up
WO2007130120A1 (en) * 2006-04-28 2007-11-15 Sony Ericsson Mobile Communications Ab Device and method including secondary actuator for push-to-talk application
WO2007142718A2 (en) 2006-05-31 2007-12-13 Cisco Technology, Inc. Floor control templates for use in push-to-talk applications
EP1887751A1 (en) * 2006-08-11 2008-02-13 Nokia Siemens Networks Gmbh & Co. Kg Method and system for synchronizing at least two media streams within one push-to-talk-over-cellular session
EP1968233A1 (en) * 2005-12-01 2008-09-10 Huawei Technologies Co., Ltd. A processing method and device for the media transmission right
KR100886898B1 (en) 2005-09-05 2009-03-05 인피니언 테크놀로지스 아게 Conference communication system, method for operating a conference communication system, notification device and method for notifying a communication terminal equipment
JP2009512249A (en) * 2005-09-30 2009-03-19 サムスン エレクトロニクス カンパニー リミテッド Method and system for providing simultaneous multiplex PoC multimedia service
US7853280B2 (en) 2007-06-07 2010-12-14 Motorola Mobility, Inc. Method and apparatus for arbitrating one or more media streams within a single PoC session
US8269817B2 (en) 2008-07-16 2012-09-18 Cisco Technology, Inc. Floor control in multi-point conference systems
RU2469501C2 (en) * 2006-10-18 2012-12-10 Эл Джи Электроникс Инк. Method and device to control permit for transfer in "push-to" service
US8553064B2 (en) 2010-12-08 2013-10-08 Cisco Technology, Inc. System and method for controlling video data to be rendered in a video conference environment
US9386054B2 (en) 2009-04-07 2016-07-05 Qualcomm Incorporated System and method for coordinated sharing of media among wireless communication devices

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0500483D0 (en) * 2005-01-11 2005-02-16 Nokia Corp Multi-party sessions in a communication system
KR101177948B1 (en) * 2006-01-13 2012-08-28 삼성전자주식회사 PoC SYSTEM AND MOBILE APARATUS AND METHOD FOR ARAMING A MEDIA TRANSFER TIME INFORMATION IN PoC SYSTEM
CN101232413B (en) * 2007-01-25 2012-11-21 华为技术有限公司 Server, system and method for transferring conversation control power
CN101316395A (en) * 2007-06-01 2008-12-03 华为技术有限公司 Method and device for scheduling call right in conversation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067674A2 (en) * 2000-03-03 2001-09-13 Qualcomm Incorporated Method and apparatus for participating in group communication services in an existing communication system
WO2002093812A2 (en) * 2001-05-15 2002-11-21 Qualcomm Incorporated A controller for reducing latency in a group dormancy-wakeup process in a group communication network
US20030152040A1 (en) * 2002-02-14 2003-08-14 Crockett Douglas M. Method and an apparatus for terminating a user from a group call in a group communication network

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921277A (en) * 1988-10-24 1990-05-01 Academy Of Applied Science, Inc. Method of labeling needle syringes and medication vials and novel labels therefor
US5622163A (en) * 1994-11-29 1997-04-22 Iep Group, Inc. Counter for fluid dispensers
US6613410B1 (en) * 1999-09-23 2003-09-02 National Label Company Extended wrap label
US5916302A (en) * 1996-12-06 1999-06-29 International Business Machines Corporation Multimedia conferencing using parallel networks
US5871007A (en) * 1997-06-09 1999-02-16 Chase Marketing International L.L.C. Throat spray counting mechanism
GB9807558D0 (en) * 1998-04-09 1998-06-10 Bason Neil P An indicator device
GB2383237B (en) * 1998-06-03 2003-10-22 Orange Personal Comm Serv Ltd Mobile communications
US7130282B2 (en) * 2002-09-20 2006-10-31 Qualcomm Inc Communication device for providing multimedia in a group communication network
US20050124365A1 (en) * 2003-12-05 2005-06-09 Senaka Balasuriya Floor control in multimedia push-to-talk

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067674A2 (en) * 2000-03-03 2001-09-13 Qualcomm Incorporated Method and apparatus for participating in group communication services in an existing communication system
WO2002093812A2 (en) * 2001-05-15 2002-11-21 Qualcomm Incorporated A controller for reducing latency in a group dormancy-wakeup process in a group communication network
US20030152040A1 (en) * 2002-02-14 2003-08-14 Crockett Douglas M. Method and an apparatus for terminating a user from a group call in a group communication network

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1695512A1 *

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7747270B2 (en) 2005-08-09 2010-06-29 Infineon Technologies Ag Method for allocating a communication right, communication conference session server and communication conference session server arrangement
DE102005037569A1 (en) * 2005-08-09 2007-02-15 Infineon Technologies Ag Communication right assigning method for push-to-talk-over-cellular communication system, involves denying communication right if right is already distributed to subscriber, and giving communication right if right is not distributed
DE102005037569B4 (en) * 2005-08-09 2011-03-03 Infineon Technologies Ag Method for assigning a communication right, communication conference session server and communication conference session server arrangement
KR100886898B1 (en) 2005-09-05 2009-03-05 인피니언 테크놀로지스 아게 Conference communication system, method for operating a conference communication system, notification device and method for notifying a communication terminal equipment
US8175010B2 (en) 2005-09-30 2012-05-08 Samsung Electronics Co., Ltd System and method for providing simultaneous multiple push-to-talk over cellular multimedia service
JP2009512249A (en) * 2005-09-30 2009-03-19 サムスン エレクトロニクス カンパニー リミテッド Method and system for providing simultaneous multiplex PoC multimedia service
WO2007041943A1 (en) * 2005-10-10 2007-04-19 Huawei Technologies Co., Ltd. A METHOD, SYSTEM AND TERMINAL FOR PROCESSING PoC SERVICE
CN100452896C (en) * 2005-10-10 2009-01-14 华为技术有限公司 PoC service processing method
EP1781054A1 (en) * 2005-10-28 2007-05-02 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for push to talk type service
JP4856185B2 (en) * 2005-10-28 2012-01-18 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Method and apparatus for push-to-talk service
WO2007058469A1 (en) 2005-11-15 2007-05-24 Samsung Electronics Co., Ltd. System, method, and user equipment for managing the floor for multimedia communication service in poc system
EP1952558A1 (en) * 2005-11-15 2008-08-06 Samsung Electronics Co., Ltd. System, method, and user equipment for managing the floor for multimedia communication service in poc system
CN102348167A (en) * 2005-11-15 2012-02-08 三星电子株式会社 Method for supporting communication service of plural multimedia types in server
EP1952558A4 (en) * 2005-11-15 2012-06-20 Samsung Electronics Co Ltd System, method, and user equipment for managing the floor for multimedia communication service in poc system
CN1980416B (en) * 2005-12-01 2011-05-18 华为技术有限公司 Media sending authority processing method and apparatus
EP1968233A1 (en) * 2005-12-01 2008-09-10 Huawei Technologies Co., Ltd. A processing method and device for the media transmission right
EP1968233A4 (en) * 2005-12-01 2009-03-25 Huawei Tech Co Ltd A processing method and device for the media transmission right
US7596132B2 (en) 2005-12-28 2009-09-29 Fujitsu Limited Communication method, communication system, relaying device and communication device
EP1924026A3 (en) * 2005-12-28 2011-04-27 Fujitsu Ltd. A communication method, communication system, relaying device and communication device
EP1804422A1 (en) * 2005-12-28 2007-07-04 Fujitsu Limited A communication method, communication system, replaying device and communication device
CN1992986B (en) * 2005-12-28 2010-06-02 富士通株式会社 Communication method, communication system, replaying device and communication device
US8139568B2 (en) 2005-12-28 2012-03-20 Fujitsu Limited Communication method, communication system, relaying device and communication device
WO2007081172A1 (en) * 2006-01-13 2007-07-19 Lg Electronics Inc. Processing media data for sip based session service
US7813749B2 (en) 2006-01-13 2010-10-12 Lg Electronics, Inc. Processing media data for SIP based session service
KR100748695B1 (en) 2006-02-17 2007-08-13 삼성전자주식회사 Method and system for serving different pta system by one session
WO2007095849A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Method, system and apparatus for assigning media transmitting right of session setting up
WO2007130120A1 (en) * 2006-04-28 2007-11-15 Sony Ericsson Mobile Communications Ab Device and method including secondary actuator for push-to-talk application
US7634286B2 (en) 2006-04-28 2009-12-15 Sony Ericsson Mobile Communications Ab Device and method including secondary actuator for push-to-talk application
JP2009535893A (en) * 2006-04-28 2009-10-01 ソニー エリクソン モバイル コミュニケーションズ， エービー Apparatus and method including a second actuator for push-to-talk applications
WO2007142718A2 (en) 2006-05-31 2007-12-13 Cisco Technology, Inc. Floor control templates for use in push-to-talk applications
EP2022249A2 (en) * 2006-05-31 2009-02-11 Cisco Technology, Inc. Floor control templates for use in push-to-talk applications
EP2022249A4 (en) * 2006-05-31 2014-03-12 Cisco Tech Inc Floor control templates for use in push-to-talk applications
EP1887751A1 (en) * 2006-08-11 2008-02-13 Nokia Siemens Networks Gmbh & Co. Kg Method and system for synchronizing at least two media streams within one push-to-talk-over-cellular session
US8416708B2 (en) 2006-10-18 2013-04-09 Lg Electronics Inc. Method and device for controlling floor in push to service
RU2469501C2 (en) * 2006-10-18 2012-12-10 Эл Джи Электроникс Инк. Method and device to control permit for transfer in "push-to" service
US7853280B2 (en) 2007-06-07 2010-12-14 Motorola Mobility, Inc. Method and apparatus for arbitrating one or more media streams within a single PoC session
US8269817B2 (en) 2008-07-16 2012-09-18 Cisco Technology, Inc. Floor control in multi-point conference systems
US9386054B2 (en) 2009-04-07 2016-07-05 Qualcomm Incorporated System and method for coordinated sharing of media among wireless communication devices
US8553064B2 (en) 2010-12-08 2013-10-08 Cisco Technology, Inc. System and method for controlling video data to be rendered in a video conference environment

Also Published As

Publication number Publication date
MXPA06006465A (en) 2006-08-23
CN1894925A (en) 2007-01-10
BRPI0417432A (en) 2007-05-29
TW200529617A (en) 2005-09-01
KR20060126991A (en) 2006-12-11
EP1695512A1 (en) 2006-08-30
CN1894925B (en) 2010-05-26
JP2007514228A (en) 2007-05-31
US20080285532A1 (en) 2008-11-20

Similar Documents

Publication Publication Date Title
US20080285532A1 (en) Floor Control for Multimedia Push-To-Talk Applications
RU2335854C2 (en) Communication device to provide multimedia in group communication network
US7747268B2 (en) Handling talk burst denials in group communication system supporting PTT service
EP1510090B9 (en) Method for controlling parties in real-time data group communication using acknowledgement packets
US20050124365A1 (en) Floor control in multimedia push-to-talk
JP4856185B2 (en) Method and apparatus for push-to-talk service
JP4971453B2 (en) Multimedia PoC session establishment and management system and method for performing multimedia call service, and user terminal
US20060178160A1 (en) System and method for management of communication rights
KR20050057501A (en) A communication manager for providing multimedia in a group communication network
JP2008536392A (en) Push-to-talk over cellular network media storage service execution method and system
US20090024743A1 (en) Media session data transmission control method, control relation negotiation method and control device and system
KR100886898B1 (en) Conference communication system, method for operating a conference communication system, notification device and method for notifying a communication terminal equipment
KR100907986B1 (en) Communication systems
KR101343664B1 (en) PoC System and PoC Terminal and Method for Managing Media Type supportted in PoC Session
JP2008527942A (en) Method of removing right to speak in PoC system and system thereof
KR100677427B1 (en) Method for processing talk burst request of mobile communication terminal

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200480037099.7

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004801322

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2006543648

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: PA/a/2006/006465

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 10596323

Country of ref document: US

Ref document number: 2054/CHENP/2006

Country of ref document: IN

Ref document number: 1020067011379

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2004801322

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067011379

Country of ref document: KR

WWW Wipo information: withdrawn in national office

Ref document number: 2004801322

Country of ref document: EP

ENP Entry into the national phase

Ref document number: PI0417432

Country of ref document: BR