ATE556547T1 - Verfahren und vorrichtung für push-to-talk dienst - Google Patents

Verfahren und vorrichtung für push-to-talk dienst

Info

Publication number
ATE556547T1
ATE556547T1 AT05110139T AT05110139T ATE556547T1 AT E556547 T1 ATE556547 T1 AT E556547T1 AT 05110139 T AT05110139 T AT 05110139T AT 05110139 T AT05110139 T AT 05110139T AT E556547 T1 ATE556547 T1 AT E556547T1
Authority
AT
Austria
Prior art keywords
terminal
push
list
type
talk
Prior art date
Application number
AT05110139T
Other languages
English (en)
Inventor
Henrik Albertsson
Jan Holm
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE556547T1 publication Critical patent/ATE556547T1/de

Links

Classifications

    • 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
    • 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
    • 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
    • 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]
AT05110139T 2005-10-28 2005-10-28 Verfahren und vorrichtung für push-to-talk dienst ATE556547T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05110139A EP1781053B1 (de) 2005-10-28 2005-10-28 Verfahren und Vorrichtung für push-to-talk Dienst

Publications (1)

Publication Number Publication Date
ATE556547T1 true ATE556547T1 (de) 2012-05-15

Family

ID=36013409

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05110139T ATE556547T1 (de) 2005-10-28 2005-10-28 Verfahren und vorrichtung für push-to-talk dienst

Country Status (11)

Country Link
US (2) US8150334B2 (de)
EP (1) EP1781053B1 (de)
JP (1) JP5219820B2 (de)
KR (1) KR101259214B1 (de)
CN (1) CN101300866A (de)
AT (1) ATE556547T1 (de)
BR (1) BRPI0617926A2 (de)
DK (1) DK1781053T3 (de)
RU (1) RU2432706C2 (de)
TW (1) TW200723909A (de)
WO (1) WO2007048708A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007014777A1 (de) * 2005-08-04 2007-02-08 T-Mobile International Ag & Co. Kg Verfahren zur anbindung von internet basierten foren und weblogs an eine push to talk plattform
ATE556547T1 (de) * 2005-10-28 2012-05-15 Ericsson Telefon Ab L M Verfahren und vorrichtung für push-to-talk dienst
US7949006B2 (en) * 2006-11-09 2011-05-24 Motorola Mobility, Inc. System and method for media burst control of discrete content for push-to-cellular communication
CN101296193B (zh) * 2007-04-26 2010-09-29 中兴通讯股份有限公司 一种refer消息扩展参数的支持方法
US8131858B2 (en) * 2008-04-04 2012-03-06 Motorola Solutions, Inc. Method and devices for enabling a multi-mode device to establish a session through multiple networks
WO2010032989A2 (en) * 2008-09-19 2010-03-25 Samsung Electronics Co., Ltd. Method and system for managing communication session establishment
US8370502B2 (en) * 2008-12-12 2013-02-05 At&T Intellectual Property I, L.P. Method and apparatus for completing a circuit switched service call in an internet protocol network
US9332561B1 (en) * 2015-04-08 2016-05-03 Ringcentral, Inc. Hybrid communications system using peer-to-peer and centralized architecture
CA2971107C (en) * 2015-05-07 2020-10-20 Kodiak Networks, Inc. System and method for data synchronization
US9876838B2 (en) 2015-06-02 2018-01-23 Verizon Patent And Licensing Inc. Dynamic codec negotiation
KR102273533B1 (ko) * 2015-06-15 2021-07-06 삼성전자 주식회사 무선 통신 시스템에서 서비스 제공 방법 및 장치
US10938914B2 (en) * 2016-01-18 2021-03-02 Avaya Inc. Inter domain instant messaging bridge
WO2018117565A1 (en) * 2016-12-19 2018-06-28 Samsung Electronics Co., Ltd. Methods and apparatus for managing control data
JP2020504557A (ja) * 2017-01-09 2020-02-06 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． メディアダウンリンク伝送制御方法及び関連するデバイス
JP7040393B2 (ja) * 2018-10-05 2022-03-23 株式会社Ｊｖｃケンウッド 端末装置、プログラム

Family Cites Families (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9500512A (nl) * 1995-03-15 1996-10-01 Nederland Ptt Inrichting voor het bepalen van de kwaliteit van een door een signaalbewerkingscircuit te genereren uitgangssignaal, alsmede werkwijze voor het bepalen van de kwaliteit van een door een signaalbewerkingscircuit te genereren uitgangssignaal.
US7100020B1 (en) * 1998-05-08 2006-08-29 Freescale Semiconductor, Inc. Digital communications processor
US7522931B2 (en) * 1998-06-05 2009-04-21 Netnumber, Inc. Method and apparatus for accessing a network computer to establish a push-to-talk session
US6360093B1 (en) * 1999-02-05 2002-03-19 Qualcomm, Incorporated Wireless push-to-talk internet broadcast
US6477150B1 (en) * 2000-03-03 2002-11-05 Qualcomm, Inc. System and method for providing group communication services in an existing communication system
US6795011B1 (en) * 2000-10-31 2004-09-21 Agere Systems Inc. Remote control help feature
US7801953B1 (en) * 2001-02-12 2010-09-21 Nortel Networks Limited Push-to-talk wireless telecommunications system utilizing an voice-over-IP network
US6788946B2 (en) * 2001-04-12 2004-09-07 Qualcomm Inc Systems and methods for delivering information within a group communications system
US7890129B2 (en) * 2001-05-15 2011-02-15 Eric Rosen Method and apparatus for delivering information to an idle mobile station in a group communication network
US7031700B1 (en) * 2001-11-14 2006-04-18 Sprint Spectrum L.P. Method and system for location-based group conference initiation
US7062253B2 (en) * 2002-04-10 2006-06-13 Sprint Spectrum L.P. Method and system for real-time tiered rating of communication services
US20030229699A1 (en) 2002-06-07 2003-12-11 Moran Timothy L. Method of limiting media description negotiation
US7111044B2 (en) * 2002-07-17 2006-09-19 Fastmobile, Inc. Method and system for displaying group chat sessions on wireless mobile terminals
US7369567B2 (en) * 2002-12-31 2008-05-06 Motorola, Inc. Methods for affiliating endpoints with a group and determining common communication capabilities for the affiliated endpoints
US7894377B2 (en) * 2002-12-31 2011-02-22 Motorola Solutions, Inc. Method and system for group communications
US7023813B2 (en) * 2002-12-31 2006-04-04 Motorola, Inc. Methods for managing a pool of multicast addresses and allocating addresses in a communications system
US7474741B2 (en) * 2003-01-20 2009-01-06 Avaya Inc. Messaging advise in presence-aware networks
US20040220538A1 (en) * 2003-04-22 2004-11-04 Panopoulos Peter John Hygienic diaper, sensor pad, and or sensing belt with alert, readout, transmission, paging, software & patient information database recording means for treating & caring for wetness, feces, & disease
US7107017B2 (en) * 2003-05-07 2006-09-12 Nokia Corporation System and method for providing support services in push to talk communication platforms
CN100438652C (zh) * 2003-05-20 2008-11-26 T-移动网德国有限公司 通过无线通信网络中的拨号接入传输用户数据的方法和系统
TW200504580A (en) * 2003-07-21 2005-02-01 Wistron Corp Method and device for wireless transmission and data storage
GB0319360D0 (en) * 2003-08-18 2003-09-17 Nokia Corp Setting up communication sessions
US7760744B1 (en) * 2003-11-20 2010-07-20 Juniper Networks, Inc. Media path optimization for multimedia over internet protocol
US20050124365A1 (en) * 2003-12-05 2005-06-09 Senaka Balasuriya Floor control in multimedia push-to-talk
US7856213B2 (en) 2004-02-27 2010-12-21 Research In Motion Limited Method, system, and device for specifying selective override of do-not-disturb functionality
DE102004010925B9 (de) * 2004-03-05 2006-06-22 Infineon Technologies Ag Verfahren und Kommunikationsanordnung zum Aufbauen einer Push-to-talk-Kommunikationsverbindung und Push-to-talk-Client-Einheit
AU2005234201B2 (en) * 2004-04-13 2009-06-18 Blackberry Limited Method for a session initiation protocol push-to-talk terminal to indicate answer operating mode to an internet protocol push-to-talk network server
US7624188B2 (en) * 2004-05-03 2009-11-24 Nokia Corporation Apparatus and method to provide conference data sharing between user agent conference participants
US7978684B2 (en) * 2004-06-15 2011-07-12 Nokia Corporation Session set-up for time-critical services
US7398079B2 (en) * 2004-06-30 2008-07-08 Research In Motion Limited Methods and apparatus for automatically recording push-to-talk (PTT) voice communications for replay
US7295853B2 (en) * 2004-06-30 2007-11-13 Research In Motion Limited Methods and apparatus for the immediate acceptance and queuing of voice data for PTT communications
JP4514755B2 (ja) * 2004-07-02 2010-07-28 富士通株式会社 通信制御方法及びコンピュータ・システム
WO2006006897A1 (en) * 2004-07-09 2006-01-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for providing different services in a multimedia communication system
US7415282B2 (en) * 2004-07-31 2008-08-19 Nextel Communications Inc. Wireless communication system providing seamless switching between full-duplex and half-duplex modes
US7974224B2 (en) * 2004-07-31 2011-07-05 Nextel Communications Inc. Subscriber unit capable of switching between full-duplex and half-duplex modes during an on-going session
JP3938379B2 (ja) * 2004-08-10 2007-06-27 富士通株式会社 電子音声会議における話者権についての情報処理方法及びプログラム、並びに無線通信携帯端末
JP2006054656A (ja) * 2004-08-11 2006-02-23 Nec Corp Ｐｔｔ通信システム、ｐｔｔ通信方法、ｐｔｔ通信サーバ
US7463901B2 (en) * 2004-08-13 2008-12-09 Telefonaktiebolaget Lm Ericsson (Publ) Interoperability for wireless user devices with different speech processing formats
KR100575978B1 (ko) * 2004-08-17 2006-05-02 삼성전자주식회사 Ｐｔｔ휴대용 단말기에서 ｐｔｔ통신서비스의 발언권자표시방법
US20060046758A1 (en) * 2004-09-02 2006-03-02 Mohsen Emami-Nouri Methods of retrieving a message from a message server in a push-to-talk network
US7415284B2 (en) * 2004-09-02 2008-08-19 Sonim Technologies, Inc. Methods of transmitting a message to a message server in a push-to-talk network
FI20050092A0 (fi) * 2004-09-08 2005-01-28 Nokia Corp Ryhmäpalveluiden ryhmätiedot
EP1792506B1 (de) * 2004-09-21 2012-06-13 Telefonaktiebolaget LM Ericsson (publ) Vorrichtung und verfahren zur bereitstellung von dynamikdienstoptionen für push-to-talk-over-cellular (poc)
KR100666984B1 (ko) * 2004-09-24 2007-01-10 삼성전자주식회사 푸쉬 투 토크 오버 셀룰러 시스템 사용자의 응답 모드에따른 호 처리 시스템 및 방법
US20060072526A1 (en) * 2004-10-04 2006-04-06 Nokia Corporation Change of resource reservation for an IP session
US7668515B2 (en) * 2004-10-06 2010-02-23 Comverse Ltd. Portable telephone for conveying real time walkie-talkie streaming audio-video
US20060087973A1 (en) * 2004-10-22 2006-04-27 Henry Huang Delay timers for managing internal state changes and messages in user equipment for real-time multimedia applications
US20060089131A1 (en) * 2004-10-22 2006-04-27 Henry Huang Delay timers for managing internal state changes and messages in user equipment for real-time multimedia applications
US7558286B2 (en) * 2004-10-22 2009-07-07 Sonim Technologies, Inc. Method of scheduling data and signaling packets for push-to-talk over cellular networks
US7155248B2 (en) * 2004-10-22 2006-12-26 Sonlm Technology, Inc. System and method for initiating push-to-talk sessions between outside services and user equipment
FI20041377A0 (fi) * 2004-10-25 2004-10-25 Nokia Corp Palvelujen tarjonta tietoliikennejärjestelmässä
US7324505B2 (en) * 2004-12-24 2008-01-29 Christopher Hoover Sustained VOIP call logs using PoC contact lists
US20060149811A1 (en) * 2004-12-31 2006-07-06 Sony Ericsson Mobile Communications Ab Method for remotely controlling media devices via a communication network
US8473617B2 (en) * 2004-12-31 2013-06-25 Sony Corporation Media client architecture for networked communication devices
GB0500483D0 (en) * 2005-01-11 2005-02-16 Nokia Corp Multi-party sessions in a communication system
US8010142B2 (en) * 2005-01-31 2011-08-30 Motorola Solutions, Inc. Method and apparatus for including a recording device in a push-to-talk over cellular communication session
KR101174525B1 (ko) * 2005-03-08 2012-08-16 삼성전자주식회사 푸쉬투토크 오버 셀룰러 네트워크의 응답 클라이언트 식별방법 및 그 시스템
KR101155224B1 (ko) * 2005-03-09 2012-06-13 삼성전자주식회사 Ｓｉｐ/ｉｐ 코어 네트워크에서 세션 분리 방법 및 서버 및 단말
US7817995B2 (en) * 2005-04-01 2010-10-19 Nextel Communications Company L.P. Systems and methods for scheduling the recording of audio and/or visual content
CN101147408A (zh) * 2005-04-04 2008-03-19 艾利森电话股份有限公司 按键通话移动通信业务中的应答模式
KR100761276B1 (ko) * 2005-04-11 2007-09-28 엘지전자 주식회사 ＰｏＣ서비스를 위한 Ｓｉｍｕｌｔａｎｅｏｕｓ 세션제어방법 및 장치
KR101061373B1 (ko) * 2005-04-11 2011-09-02 삼성전자주식회사 푸쉬투토크 오버 셀룰러 망의 미디어 저장 서비스 수행 방법과 ＰｏＣ 서버 및 ＰｏＣ 클라이언트
US7577455B2 (en) * 2005-05-25 2009-08-18 Palo Alto Research Center Incorporated Three turn interactive voice messaging system
JP4779450B2 (ja) * 2005-06-01 2011-09-28 株式会社日立製作所 コンテキスト情報に応じたアプリケーション制御を行うネットワークシステム
US8095665B1 (en) * 2005-06-30 2012-01-10 Google Inc. User-friendly features for real-time communications
US7536191B2 (en) * 2005-07-01 2009-05-19 Microsoft Corporation Push-to-talk communications in computing environments
BRPI0520347B1 (pt) * 2005-07-08 2019-05-28 Telefonaktiebolaget Lm Ericsson (Publ) Método, controlador e terminal para uso em um serviço do tipo pressionar para falar
US8681751B2 (en) * 2005-07-11 2014-03-25 Nokia Corporation Method and apparatus for providing presence information in support of wireless communication services
EP1905256B1 (de) * 2005-07-15 2013-05-15 Research In Motion Limited Verfahren und vorrichtungen zum bereitstellen von ptt-datenpufferungs-unterstützungsindikationen aus mobilen einrichtungen und ptt-datenpufferungssteuerung durch drahtlose netze
US8041376B2 (en) * 2005-07-15 2011-10-18 Research In Motion Limited Methods and apparatus for providing PTT data buffering support indications from mobile devices and PTT data buffering control by wireless networks
US7546133B2 (en) * 2005-07-26 2009-06-09 Motorola, Inc. System and method for automatic user availability setting
CN100512293C (zh) * 2005-09-07 2009-07-08 华为技术有限公司 一种会话初始化协议消息体内容处理方法及网络
US20070091860A1 (en) * 2005-10-26 2007-04-26 Lery Scott A Wireless remote control device and method
US20070113162A1 (en) * 2005-10-26 2007-05-17 Lery Scott A Error code for wireless remote control device and method
ATE556547T1 (de) * 2005-10-28 2012-05-15 Ericsson Telefon Ab L M Verfahren und vorrichtung für push-to-talk dienst
PL1781052T3 (pl) * 2005-10-28 2008-11-28 Ericsson Telefon Ab L M Sposób i urządzenie przeznaczone do wykorzystania w usługach typu Naciśnij i Mów
DE602005020021D1 (de) * 2005-10-28 2010-04-29 Ericsson Telefon Ab L M Verfahren und Gerät für einen "drücken zum sprechen" ähnlichen Dienst
US7529540B2 (en) * 2005-11-29 2009-05-05 International Business Machines Corporation Method and system for invoking push-to-service offerings
CN100558131C (zh) * 2005-12-02 2009-11-04 华为技术有限公司 在无线一键通业务中实现语音信箱及留言通知方法
KR101225403B1 (ko) * 2005-12-12 2013-01-22 삼성전자주식회사 ＰｏＣ 시스템에서 ＰｏＣ 그룹 세션 개설을 위한 방법과단말기 및 그 시스템
US7996228B2 (en) * 2005-12-22 2011-08-09 Microsoft Corporation Voice initiated network operations
KR101292464B1 (ko) * 2006-03-27 2013-07-31 삼성전자주식회사 ＰｏＣ 시스템에서의 ＰｏＣ 박스 서비스 제공 방법 및시스템
KR101251193B1 (ko) * 2006-06-09 2013-04-08 삼성전자주식회사 ＰｏＣ 시스템에서 그룹 세션을 개설하기 위한 방법 및 시스템
KR101250589B1 (ko) * 2006-10-02 2013-04-03 삼성전자주식회사 멀티미디어 통화 서비스를 수행하기 위한 멀티미디어ＰｏＣ 세션 개설 및 관리 시스템과 그 방법 및 단말장치
US9288276B2 (en) * 2006-11-03 2016-03-15 At&T Intellectual Property I, L.P. Application services infrastructure for next generation networks including a notification capability and related methods and computer program products
US8019383B2 (en) * 2007-01-17 2011-09-13 Nokia Corporation Techniques to increase coverage of push-to-talk wireless networks
KR101343664B1 (ko) * 2007-04-05 2013-12-20 삼성전자주식회사 ＰｏＣ 세션에서 지원하는 미디어 타입 관리 방법 및 이를구현하기 위한 ＰｏＣ 시스템과 ＰｏＣ 단말
US8184558B2 (en) * 2007-05-31 2012-05-22 Telecom Italia S.P.A. Method, gateway and system for providing a push-to-x service to a user of a data terminal
JP5044380B2 (ja) * 2007-12-04 2012-10-10 株式会社日立国際電気 配信装置及びコーデック変換装置、通信システム
US8135386B2 (en) * 2008-07-09 2012-03-13 Telefoanktebolaget L M Ericsson (Publ) Method and apparatus for instance identifier based on a unique device identifier
US8180386B1 (en) * 2009-06-29 2012-05-15 Sprint Communications Company L.P. Promoting push-to-talk communication
US8775535B2 (en) * 2011-01-18 2014-07-08 Voxilate, Inc. System and method for the transmission and management of short voice messages

Also Published As

Publication number Publication date
EP1781053A1 (de) 2007-05-02
EP1781053B1 (de) 2012-05-02
TW200723909A (en) 2007-06-16
US20090047915A1 (en) 2009-02-19
KR101259214B1 (ko) 2013-04-29
KR20080060256A (ko) 2008-07-01
BRPI0617926A8 (pt) 2016-08-23
CN101300866A (zh) 2008-11-05
US8385848B2 (en) 2013-02-26
JP2009514284A (ja) 2009-04-02
JP5219820B2 (ja) 2013-06-26
US8150334B2 (en) 2012-04-03
RU2008121262A (ru) 2009-12-10
DK1781053T3 (da) 2012-08-13
US20120157087A1 (en) 2012-06-21
BRPI0617926A2 (pt) 2016-08-23
RU2432706C2 (ru) 2011-10-27
WO2007048708A1 (en) 2007-05-03

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