KR100548410B1 - Ptt service method in a mobile telecommunication system - Google Patents

Ptt service method in a mobile telecommunication system Download PDF

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KR100548410B1
KR100548410B1 KR1020030069180A KR20030069180A KR100548410B1 KR 100548410 B1 KR100548410 B1 KR 100548410B1 KR 1020030069180 A KR1020030069180 A KR 1020030069180A KR 20030069180 A KR20030069180 A KR 20030069180A KR 100548410 B1 KR100548410 B1 KR 100548410B1
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ptt
mobile station
control channel
common control
ptt mobile
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KR20050033211A (en
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최용수
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엘지전자 주식회사
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

본 발명은 이동통신 시스템에서 커몬 콘트롤 채널을 이용하여 PTT 서비스를 수행하는 기술에 관한 것이다. 이러한 본 발명은, PTT 이동국 프로토콜 스택 상에서 에어 인터페이스를 커몬 콘트롤 채널로 설정하는 제1과정과; 상기 PTT 이동국에서 파워 업 시 상기 커몬 콘트롤 채널을 통해 그 PTT 이동국과 기지국/PTT 서버간에 초기화 과정을 수행하는 제2과정과; 상기 PTT 이동국과 기지국/PTT 서버간의 PTT 콜을 설정할 때 상기 커몬 콘트롤 채널을 통해 설정하는 제3과정에 의해 달성된다. The present invention relates to a technique for performing a PTT service using a common control channel in a mobile communication system. This invention comprises a first step of setting an air interface as a common control channel on a PTT mobile station protocol stack; A second process of performing an initialization process between the PTT mobile station and a base station / PTT server through the common control channel when the PTT mobile station powers up; A third process is established through the common control channel when establishing a PTT call between the PTT mobile station and the base station / PTT server.

Description

이동통신 시스템의 피티티 서비스 방법{PTT SERVICE METHOD IN A MOBILE TELECOMMUNICATION SYSTEM}PITTI SERVICE METHOD IN MOBILE COMMUNICATION SYSTEM {PTT SERVICE METHOD IN A MOBILE TELECOMMUNICATION SYSTEM}

도 1은 본 발명의 PTT 이동국에 적용되는 프로토콜 스택의 포맷도.1 is a format diagram of a protocol stack applied to a PTT mobile station of the present invention.

도 2는 본 발명에 의한 PTT 이동국과 기지국/PTT 서버간의 초기화 처리과정을 나타낸 신호 흐름도.2 is a signal flow diagram illustrating an initialization process between a PTT mobile station and a base station / PTT server according to the present invention.

도 3은 본 발명에 의한 PTT 콜 설정 과정을 나타낸 신호 흐름도.3 is a signal flow diagram illustrating a PTT call setup process according to the present invention;

본 발명은 이동통신 시스템에서 피티티(PTT: Push To Talk) 서비스를 수행하는 기술에 관한 것으로, 특히 IS-2000 CDMA 이동통신 시스템에서 단말이 PTT 콜을 설정 유지할 때 트래픽 채널을 이용하지 않고 커몬 콘트롤 채널(Common Control Channel)을 이용할 수 있도록 한 이동통신 시스템의 피티티 서비스 방법에 관한 것이다.The present invention relates to a technology for performing a push-to-talk (PTT) service in a mobile communication system. In particular, in an IS-2000 CDMA mobile communication system, common control is performed without using a traffic channel when a terminal establishes a PTT call. The present invention relates to a fitness service method of a mobile communication system that can use a common control channel.

종래의 CDMA 이동통신 시스템에 있어서는 트래픽 채널을 이용한 데이터 콜(Data Call)로써 PTT 콜을 설정 및 유지하고, PTT 단말은 항상 파워 업(Poewr-Up) 시 데이터 컨넥션 채널을 열어야 하며 통화를 하지 않는 아이들(idle) 상태에 서도 도어먼트(Dormant) 상태를 유지하도록 되어 있었다. 그리고, PTT 통화를 시도할 때 패킷 데이터 리액티베이션(Packet Data Reactivation) 과정을 통해 트래픽 채널을 재설정 하도록 되어 있었다. In a conventional CDMA mobile communication system, a PTT call is established and maintained as a data call using a traffic channel, and the PTT terminal should always open a data connection channel during power-up and do not make a call. It was supposed to maintain the Dormant state even in the idle state. In addition, when attempting a PTT call, the traffic channel was reconfigured through a packet data reactivation process.

이와 같이 종래 기술에 의한 PTT 서비스 방법에 있어서는 트래픽 채널을 이용하고, PTT 통화를 시도할 때 패킷 데이터 리액티베이션 과정을 통해 트래픽 채널을 재설정 하도록 되어 있으므로, 트래픽 채널을 설정하는 시간 지연 및 도어먼트 리액티베이션의 반복으로 인하여 시스템의 부하가 가중되고, 단말의 배터리 전원이 많이 소모되는 문제점이 있었다. As described above, in the PTT service method according to the prior art, the traffic channel is used, and when the PTT call is attempted, the traffic channel is reconfigured through the packet data reactivation process. Due to the repetition of the load on the system, there is a problem that the battery power of the terminal is consumed a lot.

따라서, 본 발명의 목적은 단말이 PTT 콜을 설정 유지할 때 트래픽 채널을 이용하는 것이 아니라 커몬 콘트롤 채널을 이용하는 이동통신 시스템의 피티티 서비스 방법을 제공함에 있다.Accordingly, an object of the present invention is to provide a fitness service method of a mobile communication system using a common control channel instead of using a traffic channel when a terminal establishes and maintains a PTT call.

본 발명에 의한 이동통신 시스템의 피티티 서비스 방법은, PTT 이동국 프로토콜 스택 상에서 에어 인터페이스를 커몬 콘트롤 채널로 설정하는 제1과정과; 상기 PTT 이동국에서 파워 업 시 상기 커몬 콘트롤 채널을 통해 그 PTT 이동국과 기지국/PTT 서버간에 초기화 과정을 수행하는 제2과정과; 상기 PTT 이동국과 기지국/PTT 서버간에 PTT 콜을 설정할 때 상기 커몬 콘트롤 채널을 통해 설정하는 제3과정으로 이루어지는 것으로, 이와 같이 이루어지는 본 발명의 PTT 서비스 처리 과정을 첨부한 도 1 내지 도 3을 참조하여 상세히 설명하면 다음과 같다.A fitness service method of a mobile communication system according to the present invention includes a first step of setting an air interface as a common control channel on a PTT mobile station protocol stack; A second process of performing an initialization process between the PTT mobile station and a base station / PTT server through the common control channel when the PTT mobile station powers up; When the PTT call is established between the PTT mobile station and the base station / PTT server, a third process is established through the common control channel. Referring to FIG. 1 to FIG. It will be described in detail as follows.

도 1은 본 발명의 PTT 이동국(Mobile Station)에 적용되는 프로토콜 스택(Protocol Stack)을 나타낸 것이다. 여기서, 에어 인터페이스(Air Interface)는 물리계층(Physical Layer)으로서 본 발명에서는 이것을 트래픽 채널에서 커몬 콘트롤 채널로 변경한 것이 다른 점이다.1 shows a protocol stack applied to a PTT mobile station of the present invention. Here, the air interface is a physical layer, which is different from the traffic channel to the common control channel in the present invention.

참고로, 상기 도 1에서 "SDP"는 Session Description Protocol을 의미하고, "RTP/SIP"는 Real Time Protocol/Session Initiation Protocol을 의미하고, "UDP"는 User Data Protocol을 의미하고, "IP"는 Internet Protocol을 의미하고, "PPP"는 Point-to-Point Protocol을 의미하고, "RLP"는 Radio Link Protocol을 의미한다. For reference, in FIG. 1, "SDP" means Session Description Protocol, "RTP / SIP" means Real Time Protocol / Session Initiation Protocol, "UDP" means User Data Protocol, and "IP" means Internet Protocol, "PPP" means Point-to-Point Protocol, "RLP" means Radio Link Protocol.

IS-2000 CDMA 이동통신 시스템에서 파워 업 시 본 발명에 의한 PTT 이동국과 기지국(Base Station)/PTT 서버간의 초기화 처리과정을 도 2를 참조하여 설명하면 다음과 같다.An initialization process between a PTT mobile station and a base station / PTT server according to the present invention during power-up in an IS-2000 CDMA mobile communication system will be described with reference to FIG. 2.

PTT 이동국에서 파워 업하면 그 PTT 이동국과 기지국/PTT 서버간에 커몬 콘트롤 채널을 통해 PPP 셋업, DNS IP 수신을 수행한다. 이후, 상기 PTT 이동국에서 커몬 콘트롤 채널을 통해 기지국/PTT 서버에 컨택트 리스트(Contact List)를 요구하여 커몬 콘트롤 채널을 통해 그 컨택트 리스트를 수신받은 다음 PTT 아이콘을 디스플레이하고 아이들 상태에 있게 된다.When powering up at a PTT mobile station, PPP setup and DNS IP reception are performed between the PTT mobile station and the base station / PTT server through a common control channel. Thereafter, the PTT mobile station requests a contact list from the base station / PTT server through the common control channel, receives the contact list through the common control channel, displays a PTT icon, and is in an idle state.

또한, 본 발명에 의한 PTT 콜 설정 과정을 도 3을 참조하여 설명하면 다음과 같다.In addition, the PTT call setup process according to the present invention will be described with reference to FIG.

PTT 이동국에서 검색/PTT 키를 누르면, 상기 커몬 콘트롤 채널을 통해 상대방 PTT 이동국에 착신 톤이 전송되어 PTT 리스닝(Listening) 화면이 디스플레이된다. 이때, 상기 상대방 PTT 이동국에서 응답하면 상기 발신측 PTT 이동국 간에 커몬 콘트롤 채널을 통한 접속 채널이 구축되어 그 커몬 콘트롤 채널을 통해 서로 통화(Talking)를 할 수 있게 된다. When a search / PTT key is pressed at a PTT mobile station, an incoming tone is transmitted to the other PTT mobile station through the common control channel, and a PTT listening screen is displayed. At this time, when the counterpart PTT mobile station responds, an access channel through the common control channel is established between the calling PTT mobile stations so that they can talk to each other through the common control channel.

이상에서 상세히 설명한 바와 같이 본 발명은, 단말이 PTT 콜을 설정 유지할 때 커몬 콘트롤 채널을 이용하도록 함으로써, 시스템의 부하가 줄어들고 단말의 배터리 전원 소모량이 최소화 되는 효과가 있다. As described in detail above, the present invention has the effect of reducing the load on the system and minimizing the battery power consumption of the terminal by allowing the terminal to use the common control channel when setting and maintaining the PTT call.

Claims (3)

PTT 이동국 프로토콜 스택 상에서 에어 인터페이스를 커몬 콘트롤 채널로 설정하는 제1과정과; 상기 PTT 이동국에서 파워 업 시 상기 커몬 콘트롤 채널을 통해 그 PTT 이동국과 기지국/PTT 서버간에 초기화 과정을 수행하는 제2과정과; 상기 PTT 이동국과 기지국/PTT 서버간에 상기 커몬 콘트롤 채널을 통해 PTT 콜을 설정하는 제3과정을 포함하여 이루어지는 것을 특징으로 하는 이동통신 시스템의 피티티 서비스 방법.Setting up an air interface as a common control channel on a PTT mobile station protocol stack; A second process of performing an initialization process between the PTT mobile station and a base station / PTT server through the common control channel when the PTT mobile station powers up; And establishing a PTT call through the common control channel between the PTT mobile station and a base station / PTT server. 제1항에 있어서, 제2과정은 PTT 이동국에서 파워 업 시 그 PTT 이동국과 기지국/PTT 서버간에 커몬 콘트롤 채널을 통해 PPP 셋업, DNS IP 수신을 수행하는 단계와; 상기 PTT 이동국에서 커몬 콘트롤 채널을 통해 기지국/PTT 서버로부터 컨택트 리스트를 전송받는 단계와; 상기 PTT 이동국이 PTT 아이콘을 디스플레이하고 아이들 상태를 유지하는 단계를 포함하여 이루어지는 것을 특징으로 하는 이동통신 시스템의 피티티 서비스 방법.2. The method of claim 1, further comprising: performing PPP setup and DNS IP reception through a common control channel between the PTT mobile station and the base station / PTT server upon power-up at the PTT mobile station; Receiving a contact list from a base station / PTT server through a common control channel at the PTT mobile station; And displaying, by the PTT mobile station, a PTT icon and maintaining an idle state. 제1항에 있어서, 제3과정은 PTT 이동국에서 검색/PTT 키 입력 시 커몬 콘트롤 채널을 통해 상대방 PTT 이동국에 착신 톤을 전송하는 단계와; 상기 상대방 PTT 이동국에서 응답 시 두 PTT 이동국간에 커몬 콘트롤 채널을 통해 접속 채널을 구축하는 단계와; 상기 두 PTT 이동국간에 상기 커몬 콘트롤 채널을 통해 통화하는 단계를 포함하여 이루어지는 것을 특징으로 하는 이동통신 시스템의 피티티 서비스 방법.2. The method of claim 1, further comprising the steps of: transmitting an incoming tone to a counterpart PTT mobile station through a common control channel when a PTT mobile station searches for a search / PTT key; Establishing an access channel through a common control channel between two PTT mobile stations in response to the counterpart PTT mobile station; And making a call between the two PTT mobile stations through the common control channel.
KR1020030069180A 2003-10-06 2003-10-06 Ptt service method in a mobile telecommunication system KR100548410B1 (en)

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