WO2007052594A1 - PoCサーバ自動検索方法、品質調整方法、及び、これらの方法を用いた通信システム - Google Patents
PoCサーバ自動検索方法、品質調整方法、及び、これらの方法を用いた通信システム Download PDFInfo
- Publication number
- WO2007052594A1 WO2007052594A1 PCT/JP2006/321635 JP2006321635W WO2007052594A1 WO 2007052594 A1 WO2007052594 A1 WO 2007052594A1 JP 2006321635 W JP2006321635 W JP 2006321635W WO 2007052594 A1 WO2007052594 A1 WO 2007052594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- server
- poc
- group list
- network
- communication
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims description 18
- 238000010586 diagram Methods 0.000 description 10
- 239000000969 carrier Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007430 reference method Methods 0.000 description 1
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
- 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
- H04W4/08—User group management
-
- 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
- the present invention relates to a communication technique for communicating media information such as text data, audio data, and moving image data via a server using a network.
- connection destination information (group list, etc.) is listed via a server.
- the service includes a method that considers the convenience of the user by selecting the connection destination and starting communication.
- FIG. 4 is a functional block diagram showing a typical service system configuration example.
- each terminal device 1 (1), 1 1 (2), -3- (2) (6A (1), 6A (2), 1 6 (2)) A terminal that connects to a network using a wireless network provided by an operator.
- each of the networks 3A, 3B, and 3C provided by a telecommunications carrier can be used by a telecommunications carrier such as a W-CDMA network, a GPRS network, or a W-LAN network.
- a telecommunications carrier such as a W-CDMA network, a GPRS network, or a W-LAN network.
- Each communication carrier includes radio base station devices (1 to 3) 5A to 5C and a network connection device.
- each carrier Nettowaku (1-3) 3 1 8-3 Ji 3 0 Ji server, GL server are installed, each terminal can access the PoC Sano, the GL server, Get the service by acquiring the group list and performing connection processing to start the PoC service.
- FIG. 5 is a sequence diagram of connection destination acquisition processing in the system shown in FIG. Figure 5
- the sequence example when connection is possible is that the terminal device 6 sends a group list acquisition request to the GL server 3A-2, and the GL Sano 3A-2 is free for the PoC Sano 3A-1. Make an inquiry.
- PoC server 3A-1 replies to GL server 3A-2 that there is a free space
- GL server 3A-2 sends connection destination information to terminal device 6. Connection is made based on this. If connection is not possible, a response indicating no availability will be returned.
- Fig. 5 (B) shows an example of a group list when connection is possible. Since the number of users currently connected is 3 for the maximum number of users of 5, there is a free space.
- Fig. 5 (C) shows an example of a group list when connection is impossible. Since there are 3 users currently connected to the maximum number of users, there is no space.
- FIG. 6 is a diagram illustrating a sequence example of PoC connection.
- terminal devices (1) 6 A- 1, (2) 6 A- 2, etc. will be indicated.
- An example of a PoC connection sequence between the terminal device (1) 6A-1, the PoC server 3A-1, and the terminal device (2) 6A-2 in the above configuration will be described with reference to FIG.
- explanations of messages sent and received at the terminal device and PoC server are omitted, and explanations are focused on only messages related to quality.
- the INVITE signal sent from the terminal device (1) 6A-1 reaches the terminal device (2) 6A-2 via the PoC server 3 A-1.
- SDP Session Description Protocol
- parameters such as Ptime that define the length of audio data is added.
- the terminal device (2) 6A-2 is returned to the terminal device (1) 6A-1 via the OK signal power PoC server 3A-1. This also includes the SDP information described above.
- the PoC server 3A-1 is the quality information such as the SDP information sent from the terminal device (1) 6A-1 and the Ptime of the SDP information sent from the terminal device (2) 6A-2. For this, the value is changed according to the optimum value within the same carrier network and the voice data conversion capability of the PoC server 3A-1.
- Terminal device (1) 6A-1 sends out voice data 1 in accordance with the parameter value included in the SDP information, and PoC server 3A-1 converts a part of the voice data, and transmits the terminal device ( 2) A constant quality can be maintained by sending to 6A-2.
- a signal is sent in the order of terminal device (1) 6 A- l ⁇ PoC server 3A-1 ⁇ terminal device (2) 6A-2!
- the audio data transmitted in the order of the terminal device (2) 6A-2 ⁇ PoC server 3A-1 ⁇ terminal device (1) 6A-1 may be considered similarly.
- Non-patent document 1 OMA Push to talk over Cellular (PoC) Archtecture Candidate Versio n 1.0 (OMA—AD—PoC—VI—0—20051006—C), URL: http://www.openmobilealliance.org I release—program / poc-vl_0.html
- the number of users and group lists that can be handled by the server provided by the telecommunications carrier is limited, exceeding the processing capacity of the server If the user tries to communicate at the same time, the user cannot receive the service.
- An object of the present invention is to solve problems caused by differences among communication carriers.
- a group list server that provides a group list related to terminal devices belonging to a plurality of communication carrier network systems, each of which is a plurality of communication carrier network systems.
- a plurality of communication carrier network systems each having a PoC server for exchanging information regarding registration of the group list and availability of terminal devices, each of which is connected by a network, Connected to the network, registration and inquiry of group list information
- a communication system characterized by having a PoC domain server that performs communication including communication over GL servers belonging to the plurality of communication carrier network systems.
- a plurality of telecommunications carrier network systems each of which provides a group list relating to a terminal device belonging to the telecommunications carrier network system, registration of the group list and availability of the terminal device are used in communication systems connected to each other by a plurality of telecommunications carrier network systems that have PoC servers that exchange information on the network, and are connected to the network to register, query, and query group list information.
- a PoC domain server that performs communication including GL across GL servers belonging to the plurality of carrier network systems.
- a plurality of telecommunications carrier network systems each of which provides a group list related to terminal devices belonging to the telecommunications carrier network system
- the other Po C server is inquired about the available space, gets a response,
- a communication method is provided.
- the inquiry is relayed from the other GL Sano to the PoC server of the carrier network system to which the GL server belongs. If the response is returned from the other GL server, the domain name and group list of the PoC server that made the inquiry! It is preferable to have a step of returning the group list to the terminal device based on the connection destination information generated based on the existing user information registered in the list.
- address information such as group list sano and PoC server for different telecommunications carriers can be preliminarily exchanged via PoC domain server, and they can be exchanged without going through procedures such as roaming contracts. It becomes possible for telecommunications carriers and server operators to receive services.
- FIG. 1 is a diagram showing a configuration example of a communication system according to an embodiment of the present invention.
- FIG. 2 is a diagram showing a sequence example of connection destination acquisition according to the present embodiment.
- FIG. 3 is a diagram showing a sequence example of PoC connection according to the present embodiment.
- FIG. 4 is a diagram showing an example of a general system configuration.
- FIG. 5 A diagram showing an example of a general connection destination acquisition sequence.
- FIG. 6 is a diagram showing a typical PoC connection sequence example.
- Carrier network 1 to 3 server carrier network 4 (including PoC server and GL server)
- FIG. 1 shows a configuration example of a service system according to an embodiment of the present invention.
- symbol is provided about the component similar to FIG.
- the service system according to the present embodiment has a server operator network 4 in addition to each of the carrier network 1 to 3, and each of the carrier network 1 to 3 and the service network.
- the network 4 is different from the configuration shown in FIG. 4 in that it can communicate with the PoC domain server 2 via the Internet 1.
- Each network 1 to 3 is connected to the terminals 6A to 6C via the network connection devices 1 to 3 and the wireless base stations 5A to 5C, whereas the server network 4 is the Internet 1 Are connected to the respective carrier network 1 to 3 through the network, and are connected to the terminals 6A to 6C through the respective carrier network 1 to 3. Furthermore, a server operator network (4) 3D having PoC server 3D-1 and GL server 3D-2 is added.
- FIG. 2 is a diagram showing a connection destination acquisition sequence example in the service system according to the present embodiment.
- the GL servers (1, 2) 3A-2 and 3B-2 in each carrier perform registration (11) as a GroupList server for the PoC domain server 2 placed on the Internet 1 in advance. Keep it.
- GL server (1) 3-2 registers first, and then GL server (2) 3B-2 registers (12).
- the terminal device 6A sends a GroupList acquisition request to the GL server (1) 3A-2 (13).
- GL server (1) 3A-2 first queries PoC server (1) 3A-1 for free space (14), and PoC server (1) 13A-1 sends a response indicating no free space. Return (15).
- the GL server (1) 3A-2 which has found that it cannot connect to the PoC server (1) 13A-1, sends a domain acquisition request to the PoC domain server 2 (16).
- PoC domain server 2 selects the registered GL server and returns the domain information (here, the domain information for accessing GL server (2) 3B-2) (17).
- the GL server (1) 3A-2 obtains, for example, the GL server (2) 3B— An empty inquiry is made to 2 (18), and the inquiry is relayed from GL server (2) 3B-2 to PoC server (2) 3B-1 (19).
- GL server (2) 3B-2 generates connection destination information based on the question !, the domain name of the PoC server that performed the matching, and the existing user information registered in the group list.
- the GroupList information is returned to the terminal device 6A (22).
- connection INVITE is performed to the PoC server (1) 3A-1 (23), and the connection INVITE is performed to the PoC server (2) 3B-1 (24).
- GL sano and PoC server registered in PoC domain server 2 are shown.
- two or more GL Sano and PoC server can be used. Server operators that provide only GL servers and PoC servers can communicate using the same procedure.
- a group list server (GL server) that provides group lists for terminal devices 3D— 1
- the PoC server 3D-2 that exchanges information regarding the registration of the group list and the availability of terminal devices.
- GL server (1) 3A-2 which has finished acquiring the group list, sends adjustment request 31 to PoC server (1) 3A-1 in advance and relays it to PoC server (2) 3B-1.
- PoC server (2) 3B—1 sends and receives adjustment data to and from PoC server (1) 3A—1 (32, 33), PoC server (1) 3A 1 PoC server (2) 3B— Measure the characteristics between 1 (characteristics such as audio data size and jitter) and store the adjustment values (34).
- the PoC server (2) 3B-1 includes the SDP information sent from the terminal device (1) 6A (1), and the Ptime of the SDP information sent from the terminal device (2) 6B (1).
- the optimal value of Ptime in the carrier network to which PoC server (1) 3A-1 belongs is 200 ms, the jitter amount is 100 ms, and PoC server (2) 3B-1 belongs to
- the optimal value of Ptime in the carrier network is 160 ms and the jitter amount is 80 ms, and the jitter amount is an adjustment value between PoC server (1) 3A— 1— PoC server (2) 3B— 1. Is 120 ms.
- the Ptime is always changed to a maximum value, and the jitter amount is changed to be added to the received value.
- PoC server (1) 3A- l ⁇ PoC server (2) 3B—one SDP
- the method for changing the Ptime value and jitter value can be handled by changing the adjustment value reference method and calculation method in the PoC server (2) 3B-1.
- address information such as group list sano and PoC server for carrying out between different telecommunications carriers can be exchanged in advance via PoC domain server, and different telecommunications businesses without going through procedures such as roaming contracts.
- Service can be received by the service provider or server operator.
- the present invention is not limited to the PoC service, but can be widely used in communication services such as chat and video. I can do it.
- the present invention can be used in communication technology that uses a network to communicate media information such as text data, audio data, and moving image data via a server.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06822592A EP1956818A4 (en) | 2005-11-04 | 2006-10-30 | POC SERVER AUTOMATIC SEARCH METHOD, QUALITY ADJUSTMENT METHOD, AND COMMUNICATION SYSTEM USING THE SAME |
US12/092,395 US20090239567A1 (en) | 2005-11-04 | 2006-10-30 | Poc server automatic search method, quality adjustment method, and communication system using these methods |
JP2007542723A JP4988587B2 (ja) | 2005-11-04 | 2006-10-30 | 通信システム、PoCドメインサーバ、グループリストサーバ、サーバ、通信方法、プログラム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005320795 | 2005-11-04 | ||
JP2005-320795 | 2005-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007052594A1 true WO2007052594A1 (ja) | 2007-05-10 |
Family
ID=38005746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/321635 WO2007052594A1 (ja) | 2005-11-04 | 2006-10-30 | PoCサーバ自動検索方法、品質調整方法、及び、これらの方法を用いた通信システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090239567A1 (ja) |
EP (1) | EP1956818A4 (ja) |
JP (1) | JP4988587B2 (ja) |
KR (1) | KR101037029B1 (ja) |
CN (1) | CN101352026A (ja) |
WO (1) | WO2007052594A1 (ja) |
Cited By (1)
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CN101874415A (zh) * | 2007-11-28 | 2010-10-27 | 摩托罗拉公司 | 在分布式对等通信网络中提供低开销发言权控制的系统及方法 |
Families Citing this family (2)
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CN102081624B (zh) * | 2009-11-30 | 2013-07-17 | 中国移动通信集团北京有限公司 | 一种数据查询的方法及装置 |
CN103841093B (zh) * | 2012-11-27 | 2017-09-12 | 鸿富锦精密工业(深圳)有限公司 | 终端设备及网络协议语音通信方法 |
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- 2006-10-30 CN CNA2006800502764A patent/CN101352026A/zh active Pending
- 2006-10-30 US US12/092,395 patent/US20090239567A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
EP1956818A4 (en) | 2011-10-12 |
KR101037029B1 (ko) | 2011-05-25 |
KR20080074944A (ko) | 2008-08-13 |
JP4988587B2 (ja) | 2012-08-01 |
CN101352026A (zh) | 2009-01-21 |
JPWO2007052594A1 (ja) | 2009-04-30 |
US20090239567A1 (en) | 2009-09-24 |
EP1956818A1 (en) | 2008-08-13 |
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