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Publication numberCN102577262 B
Publication typeGrant
Application numberCN 200980162008
PCT numberPCT/JP2009/068243
Publication date14 Oct 2015
Filing date23 Oct 2009
Priority date23 Oct 2009
Also published asCN102577262A, EP2493125A1, EP2493125A4, EP2493125B1, US9407531, US20120201141, WO2011048693A1
Publication number200980162008.5, CN 102577262 B, CN 102577262B, CN 200980162008, CN-B-102577262, CN102577262 B, CN102577262B, CN200980162008, CN200980162008.5, PCT/2009/68243, PCT/JP/2009/068243, PCT/JP/2009/68243, PCT/JP/9/068243, PCT/JP/9/68243, PCT/JP2009/068243, PCT/JP2009/68243, PCT/JP2009068243, PCT/JP200968243, PCT/JP9/068243, PCT/JP9/68243, PCT/JP9068243, PCT/JP968243
Inventors井上由规, 横田史彦
Applicant富士通株式会社
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
通信系统 Communication Systems translated from Chinese
CN 102577262 B
Abstract  translated from Chinese
实现通信效率的提高。 Enable communication efficiency. 标签信息控制部(30A)生成并发送包含与其他装置通信时的通信媒体的信息即通信媒体信息和通过本装置通信时发生的通信成本的信息即通信成本信息的至少一方的标签信息。 Tag information control unit (30A) generates and sends an information and communication medium other means of communication, namely communication media of information and communication costs occurred by the time this means for communicating information that is at least one of the communication cost information label information. 路径控制部(21)接收标签信息,生成与通信对方通信时的路径的列表,从路径列表中检测适合进行通信的通信路径。 Path control unit (21) receives the tag information, generate and route the communication partner when communicating list, from the list of paths suitable for the detection of the communication path. 路径控制部(21)生成包含中继装置(30-1~30-N)中通过自己具有的通信媒体可与通信装置(20)通信的中继装置的全部路径的列表。 Path control unit (21) generating means comprises a relay (30-1 ~ 30-N) via a communication medium may have its own list of the communication device (20) all paths of communication relay apparatus. 然后,根据标签信息中的通信成本信息,在路径列表中,检测通信成本最低的通信路径。 Then, based on the tag information communication cost information in the trail list, detect communication lowest cost communication path.
Claims(5)  translated from Chinese
1.一种通信系统,其特征在于,该通信系统具备: 多个中继装置,它们包含标签信息控制部和检测拥塞的发生的拥塞控制部,该标签信息控制部生成并发送包含与其他装置通信时的通信媒体的信息即通信媒体信息和通信成本的信息即通信成本信息的标签信息,其中,该通信媒体信息是域信息、IP版本信息、传输信息中的至少一个;和通信装置,其包含:路径控制部,其接收上述标签信息,生成与通信对方通信时的路径的列表,从路径列表中检测适合进行通信的通信路径;通信控制部,其控制与上述通信对方的通信, 上述标签信息控制部将从其他中继装置传递而接收到的上述标签信息和与本中继装置相关的上述标签信息一起向上述通信装置传递, 上述路径控制部根据上述通信媒体信息,识别上述通信对方的上述通信媒体和多个上述中继装置各自的上述通信媒体,并且在判别为上述通信对方具有的上述通信媒体不同于自己具有的上述通信媒体的情况下,生成包含多个上述中继装置中可通过自己具有的上述通信媒体与上述通信对方通信的上述中继装置的全部路径的列表,上述路径控制部根据上述通信成本信息,识别多个上述中继装置各自的上述通信成本,从上述路径列表中,检测作为上述通信成本最低的路径的上述通信路径, 上述通信控制部通过上述通信路径与上述通信对方通信, 上述拥塞控制部按照拥塞频度超出阈值的时间来改变上述通信成本的值。 A communication system, characterized in that the communication system includes: a plurality of relay apparatuses, which comprise the tag information control unit detects congestion and congestion control section occurs, the tag control unit to generate and send information to other devices comprising communication of information, i.e., communication media and communication media information communication cost information i.e. the tag information and communication cost information, wherein, the communication medium information is the domain information, IP version information, at least one of transmission information; and a communication device, which comprising: a path control unit, which receives the tag information, generates a list of the communication partner when the communication path, from the list of paths suitable for the detection of the communication path; a communication control unit, which controls the communication with said communication partner, the label information control unit and transmitted from the other relay apparatus to said received tag information and relay apparatus related to the present together with said tag information transmitted to said communication means, said communication path control section based on the medium information identifying the communication partner Under the communication medium and a plurality of said relay means said respective communication medium, and is determined in the communication media is different from the communication counterpart with the communication medium having its own case, is generated comprising a plurality of said relay means may be via the communication medium has its own list of all paths with the relay of the communication counterpart communication apparatus, said communication path control unit based on the cost information, the identification of each of said plurality of said relay apparatus communication cost, from the list of paths in said communication path detection path as the lowest-cost communication, said communication control unit via the communication path in communication with the communication counterpart, said congestion control unit in accordance with the frequency of congestion exceeds a threshold time to change the value of the communication cost.
2.根据权利要求1所述的通信系统,其特征在于, 上述中继装置还具有在故障发生时生成故障信息并进行传递的故障控制部, 上述路径控制部根据上述故障信息,识别发生了故障部位的路径,从上述路径列表中,提取避开了上述故障部位的路径,从提取出的路径中检测上述通信成本最低的上述通信路径。 The communication system according to claim 1, wherein, wherein said relay apparatus further comprises generating fault information when a failure occurs and pass control unit failure, the route control unit based on the failure information, identify faulty parts of the path, the path from the list, extraction route to avoid the above-mentioned fault location, testing the communication cost of the communication path from the lowest extracted path.
3.—种中继装置,其特征在于,该中继装置具备: 标签信息控制部,其生成并发送包含与其他装置通信时的通信媒体的信息即通信媒体信息和通信成本的信息即通信成本信息中的至少一方的标签信息,其中,该通信媒体信息是域信息、IP版本信息、传输信息中的至少一个; 故障控制部,其在故障发生时生成故障信息并向相邻装置传递;和拥塞控制部,其检测拥塞的发生, 上述标签信息控制部将从其他中继装置传递而接收到的上述标签信息和与本中继装置相关的上述标签信息一起向相邻装置传递, 上述拥塞控制部按照拥塞频度超出阈值的时间来改变上述通信成本的值。 3.- species relay apparatus, wherein the relay device comprises: a label information control unit, which generates and transmits a communication medium that contains information that is information and communication cost information and communication media other means of communication, i.e. communication cost information on at least one of the tag information, wherein the communication media information is domain information, IP version information, transmitting information to at least one; fault control unit, which generates a fault message when a fault occurs adjacent to the transfer device; and Congestion control unit, for detecting the occurrence of congestion, the label information from the control unit and the other relay device transmitting said received tag information and the relay apparatus related to said tag information together with the adjacent transfer apparatus, said congestion control unit in accordance with the frequency of congestion exceeds a threshold of time to change the value of the communication costs.
4.一种通信装置,其特征在于,该通信装置具备: 路径控制部,其接收从中继装置发送的包含通信媒体的信息即通信媒体信息和通信成本的信息即通信成本信息的标签信息,生成与通信对方通信时的路径的列表,并从路径列表中检测适合进行通信的通信路径,其中,该通信媒体信息是域信息、IP版本信息、传输信息中的至少一个;和通信控制部,其控制与上述通信对方的通信, 上述路径控制部根据上述通信媒体信息,识别上述通信对方的上述通信媒体和多个上述中继装置各自的上述通信媒体,并且在判别为上述通信对方具有的上述通信媒体不同于自己具有的上述通信媒体的情况下,生成包含多个上述中继装置中可通过自己具有的上述通信媒体与上述通信对方通信的上述中继装置的全部路径的列表,上述路径控制部根据上述通信成本信息,识别多个上述中继装置各自的上述通信成本,从上述路径列表中,检测作为上述通信成本最低的路径的上述通信路径, 上述通信控制部通过上述通信路径与上述通信对方通信, 上述中继装置检测拥塞的发生,按照拥塞频度超出阈值的时间来改变上述通信成本的值。 A communication apparatus, wherein the communication apparatus includes: a path control unit, which receives information including a communication medium that is transmitted from the relay apparatus communication medium information and communication cost information i.e. the tag information and communication cost information, to generate and a list of the communication partner when the communication path, and detects paths from the list of communication paths for communication, wherein the communication medium information is the domain information, IP version information, at least one of transmission information; and a communication control unit, which said communication control with the communication partner, the route control unit according to the communication medium information identifying the communication counterpart of the communication medium and a plurality of said relay means said respective communication medium, and determining the communication to the communication counterpart having Under the communication media is different from the situation with its own medium, comprising generating a plurality of said relay means may be a list of all paths through the communication medium of the own relay apparatus having the above-described communication partner of the communication, the route control unit According to the communication cost information, identifying each of said plurality of said relay apparatus communication cost, from the list of paths, the communication path is detected as the lowest-cost communication path, the communication control unit via the communication path with the communication counterpart communication, the relay means for detecting the occurrence of congestion, according to the frequency of congestion exceeds a threshold value of the communication time to change the above costs.
5.根据权利要求4所述的通信装置,其特征在于, 上述路径控制部根据从上述中继装置传递的故障信息,识别发生了故障部位的路径,从上述路径列表中,提取避开了上述故障部位的路径,从提取的路径中检测上述通信成本最低的上述通信路径。 5. The communication apparatus according to claim 4, characterized in that said path control section based on the fault information from the relay transfer means, the identification part of the path has failed, from the list of paths, to avoid the above-mentioned extract parts of the path failure detecting said communication of said communication path the lowest cost path from the extracted.
Description  translated from Chinese
通信系统 Communication Systems

技术领域 TECHNICAL FIELD

[0001 ] 本发明涉及进行信息通信的通信系统。 [0001] The present invention relates to a communication system communicating information.

背景技术 Background technique

[0002] VoIP (Voice over Internet Protocol:网络电话)是在IP (Internet Protocol:互联网协议)网络上进行语音通信的技术,广泛应用于采用因特网电话或公司内部LAN (Local Area Network:局域网)的内线电话等。 [0002] VoIP (Voice over Internet Protocol: VoIP) are in IP: voice communication on the (Internet Protocol Internet Protocol) network technology, widely used in the use of Internet telephony or internal company LAN (Local Area Network: LAN) inside telephone.

[0003] 在VoIP中,使用被称为SIP(Sess1n Initiat1n Protocol:会话发起协议)的协议,进行作为IP网络上的应用程序间的连接关系的会话的基本呼叫控制(会话的开始/变更/切断)。 [0003] In VoIP, used to be known SIP: Protocol (Sess1n Initiat1n Protocol Session Initiation Protocol), performed as the basic call control (session start / change / connection between the application on the IP network between the sessions off ).

[0004] 另外,会话的处理中使用被称为SDP(Sess1n Descript1n Protocol:会话描述协议)的协议。 [0004] In addition, the process used in the session is called SDP (Sess1n Descript1n Protocol: Session Description Protocol). SDP与SIP协作工作,进行会话的协商,选择声音媒体,执行语音通信。 SDP and SIP collaborative work, consultation sessions, select the sound media, performing voice communications.

[0005] 图19是VoIP的语音通信的示图。 [0005] FIG. 19 is a diagram of VoIP voice communication. 通信装置51、52都具有基于ITU -TG.711标准的声音媒体作为声音媒体。 Communication devices 51 and 52 have standard-based ITU -TG.711 sound media as an audio media. 通信装置51、52在SDP中的会话协商后,通过基于ITU — TG.711的声音媒体相互进行语音通信。 After the communication devices 51 and 52 in the SDP session negotiation-based ITU - voice communication with each other TG.711 sound media.

[0006] 或者,如果通信装置51、52都具有基于ITU — T G.729标准的声音媒体作为声音媒体,则在SDP中的会话协商后,可通过基于ITU - T G.729的声音媒体相互进行语音通信。 [0006] Alternatively, if the communication devices 51 and 52 have based on ITU - T G.729 standard after the sound media as an audio media, the session negotiation in the SDP, through based on ITU - T G.729 voice media mutual voice communications.

[0007]另外,ITU —T G.711 是基于PCM(Pulse Code Modulat1n:脉冲编码调制)的语音编解码器(CODEC:编码/解码)的语音压缩算法,ITU -TG.729是基于CS —ACELP(Conjugate Structure — Algebraic Code Excited Linear Predict1n:共辄结构代数码本激励线性预测)的语音编解码器的语音压缩算法。 [0007] In addition, ITU -T G.711 is based on PCM (Pulse Code Modulat1n: Pulse Code Modulation) voice codec (CODEC: encoding / decoding) voice compression algorithm, ITU -TG.729 is based on CS -ACELP (Conjugate Structure - Algebraic Code Excited Linear Predict1n: Total Noir Structure Algebraic Code Excited Linear Prediction) speech codecs voice compression algorithms.

[0008] 作为现有技术,提出了可由VoIP通信系统连接的双方的使用者独立选择通信媒体的复合媒体通信系统的技术(专利文献I)。 [0008] As the prior art, the user may be presented both VoIP communication system connected to a communication medium independently selected composite media communication system (Patent Document I). 另外,提出了从使用者加入的多个IP电话业务中自动地选择最优业务的VoIP网关装置的技术(专利文献2)。 In addition, technology is proposed (Patent Document 2) Add the user to select from a plurality of IP telephone services automatically optimal service VoIP gateway device.

[0009] 现有技术文献 [0009] The prior art documents

[0010] 专利文献 [0010] Patent Document

[0011] 专利文献1:日本特开2008 - 085837号公报 [0011] Patent Document 1: Japanese Unexamined 2008--085837 No. Gazette

[0012] 专利文献2:日本特开2005 - 252662号公报 [0012] Patent Document 2: JP 2005--252662 No. Gazette

发明内容 SUMMARY OF THE INVENTION

[0013] 发明所要解决的问题 [0013] The invention is to solve the problem

[0014] 当进行VoIP的语音通信时,如上所述,如果本装置和对方装置具有相同的声音媒体的功能,则装置间能够直接语音通信。 [0014] When the VoIP voice communication, as described above, if the unit and the other devices with the same voice media features, you can direct voice communication between devices. 与此相对地,当双方的装置不具有相同的声音媒体时,经由具有媒体转换功能的网关装置进行通信。 As opposed to this, when the two sides of device does not have the same sound medium, via a gateway device having media conversion function to communicate.

[0015] 图20是经由网关装置的VoIP的语音通信的示图。 [0015] FIG. 20 is a VoIP gateway device shown in FIG voice communication via. 假设通信装置51具有ITU —T G.711的声音媒体,通信装置52具有ITU -TG.729的声音媒体。 Assumed that the communication device 51 having ITU -T G.711 voice media, communication device 52 has ITU -TG.729 sound media.

[0016] 另外,网关装置53具有ITU — T G.711和ITU -TG.729两者的声音媒体。 [0016] In addition, the gateway device 53 having ITU - T G.711 and ITU -TG.729 both voice media. 艮P,具有ITU - T G.711和ITU -TG.729的相互转换功能。 Gen P, having the ITU - T G.711 and ITU -TG.729 mutual conversion function.

[0017] 另外,一般地说,网关装置配置在网络的边界,其在通信数据跨越网络的边界被传送时,进行通信数据的媒体转换。 When [0017] In addition, in general, the gateway device is configured in a perimeter network, which is transmitted across borders in network communication data, communication data media conversion. VoIP网络上的网关装置例如由SIP服务器实现。 VoIP gateway device on the network such as implemented by the SIP server.

[0018] 在通信装置51、52间通信时,网关装置53将从通信装置51发送的ITU — T G.711的声音数据转换为ITU — T G.729的声音数据,向通信装置52发送。 ITU [0018] When the communication between the communication devices 51 and 52, the gateway device 53 sent from the communication apparatus 51 - T G.711 audio data is converted to ITU - T G.729 audio data is transmitted to the communication device 52. 另外,将从通信装置52发送的ITU -TG.729的声音数据转换为ITU — T G.711的声音数据,向通信装置51发送。 In addition, the sound data transmitted from the communication apparatus 52 converts ITU -TG.729 ITU - T G.711 audio data is transmitted to the communication device 51.

[0019] 图21是经由网关装置的VoIP的语音通信的示图。 [0019] FIG. 21 is a VoIP gateway apparatus shown in FIG voice communication via. 示出了配置多台网关装置的网络状态。 It shows a configuration of multiple network gateway device status. 网关装置53 -1具有ITU -TG.711和AMR (Adaptive Multi Rate:自适应多速率)的声音媒体,将ITU -TG.711和AMR相互转换。 The gateway device 53-1 having ITU -TG.711 and AMR (Adaptive Multi Rate: adaptive multi-rate) voice of the media, the ITU -TG.711 and AMR conversion.

[0020] 网关装置53 — 2具有ITU -TG.729和AMR的声音媒体,将ITU -TG.729和AMR相互转换。 [0020] The gateway device 53--2 have ITU -TG.729 and AMR sound media, the ITU -TG.729 and AMR conversion. 另外,AMR是在第3代移动通信中使用的语音编解码器,是3GPP (3rd Generat1nPartnership Project:第三代合作伙伴计划)制定的标准方式。 In addition, AMR is used in the third generation mobile communications in speech codec, is 3GPP (3rd Generat1nPartnership Project: the Third Generation Partnership Project) standard way to develop.

[0021] 在通信装置51、52间通信时,网关装置53 — I将从通信装置51发送的ITU — TG.711的声音数据转换为AMR的声音数据,向网关装置53 — 2发送。 [0021] When the communication between the communication apparatus 51, gateway apparatus 53 - I sent from the communication apparatus 51 ITU - TG.711 AMR voice data into audio data, to the gateway device 53 - 2 transmission. 网关装置53 — 2将AMR的声音数据转换为ITU -TG.729的声音数据,向通信装置52发送。 The gateway device 53--2 the AMR voice data into voice data -TG.729 ITU, the transmission to the communication device 52.

[0022] 另外,网关装置53 - 2将从通信装置52发送的ITU — T G.729的声音数据转换为AMR的声音数据,向网关装置53 -1发送。 [0022] In addition, the gateway device 53 - 2 from the communication apparatus 52 transmits the ITU - T G.729 AMR voice data into the voice data is transmitted to the gateway device 53-1. 网关装置53 — I将AMR的声音数据转换为ITU -TG.711的声音数据,向通信装置51发送。 The gateway device 53 - I would AMR voice data into ITU -TG.711 sound data is transmitted to the communication device 51.

[0023] 如上所述,当通信装置51、52具有互不相同的声音媒体时,装置间无法直接通信,因此,经由网关装置转换媒体后进行通信。 [0023] As described above, when the communication apparatus 51, 52 having mutually different sound media, direct communication between devices can not, therefore, communicate via the gateway device after the conversion medium.

[0024] 但是,以往,没有识别网关装置或通信对方具有怎样的声音媒体的手段,另外,不能识别经由怎样的网关装置确立通路可以最大程度削减通信成本。 [0024] However, in the past, it does not recognize the communication partner or the gateway device has means how sound media, in addition, does not recognize how to establish access via the gateway device can maximize the reduction of communication costs. 因而,通过多个网关装置确立无用通路的可能性较高,存在通信效率降低的问题。 Thus, the possibility of unwanted passage established through a plurality of gateway devices is high, the problem of the existence of the communication efficiency decreases.

[0025] 图22是经由网关装置的VoIP的语音通信的示图。 [0025] FIG. 22 is a VoIP gateway device shown in FIG voice communication via. 假设图21所示网关装置53 —I除了ITU — T G.711和AMR以外还具有ITU — T G.729作为声音媒体(g卩,具有这3个声音媒体的相互转换功能)。 FIG. 21 is assumed that the gateway device 53 -I addition to ITU - T G.711 and AMR outside also has ITU - T G.729 as the audio media (g Jie, having these three sound media conversion feature).

[0026] 此时,在通信装置51、52间进行通信时,可不经由网关装置53 — 2,而仅仅经由网关装置53 -1而进行通信。 [0026] In this case, when communicating between communication devices 51 and 52, without passing through the gateway device 53--2, but only via a gateway device 53-1 and communication. 但是,以往,无法知道网关装置53 -1具有与通信装置52相同的ITU -TG.729,因此,存在浪费地经由2台网关装置53 — 1、53 — 2进行通信的可能性,导致通信效率的降低。 However, in the past, you can not know the gateway device 53-1 and the communication device 52 having the same ITU -TG.729, therefore, the presence of the gateway device 53 via two waste land - 1,53 - 2 possibilities for communication, resulting in communication efficiency reduction.

[0027] 另外,尤其是跨多个网络进行通信时,配置了较多的网关装置,因此有时经由多台不必要通过的浪费的网关装置,通信效率的恶化显著。 [0027] Further, especially when communicating across multiple networks, the more gateway apparatus is configured, it is sometimes unnecessary via multiple gateway apparatus through waste, significant deterioration of communication efficiency. 另外,上述中,以VoIP的语音通信为例进行了说明,但是其他通信协议和通信媒体中也会产生同样的问题。 Further, the above description, VoIP voice communication has been described as an example, but other communication protocols and communication media will have the same problem.

[0028] 本发明鉴于这样的问题而提出,目的在于提供一种可削减通信成本和提高通信效率的通信系统。 [0028] The present invention is proposed in view of such problems, it aims to provide a reduction of communication costs and improve communication efficiency of the communication system.

[0029] 解决问题的手段 [0029] means to solve the problem

[0030] 为了解决上述问题,提供了通信系统。 [0030] In order to solve the above problems, there is provided a communication system. 该通信系统具备:多个中继装置,它们包含标签信息控制部和检测拥塞的发生的拥塞控制部,该标签信息控制部生成并发送包含与其他装置通信时的通信媒体的信息即通信媒体信息和通信成本的信息即通信成本信息的标签信息,其中,该通信媒体信息是域信息、IP版本信息、传输信息中的至少一个;和通信装置,其包含:路径控制部,其接收上述标签信息,生成与通信对方通信时的路径的列表,从路径列表中检测适合进行通信的通信路径;通信控制部,其控制与上述通信对方的通信。 The communication system includes: a plurality of relay devices which contain label information control unit and the control unit detects congestion congestion occurs, the tag information control unit generates and sends an information and communication medium other means of communication, namely communication media information and communication cost information i.e. the tag information and communication cost information, wherein, the communication medium information is the domain information, IP version information, at least one of transmission information; and a communication device, comprising: a path control unit, which receives the tag information , list generation and the communication partner communication path from the list of paths suitable for detecting communication path; a communication control unit, which controls communication with the communication each other.

[0031] 这里,标签信息控制部将从其他中继装置传递而接收到的标签信息和与本中继装置相关的标签信息一起向通信装置传递。 [0031] Here, the label information from the control unit while the other relay device transmitted and received label information relay apparatus associated with the tag information is passed along to the communication device. 路径控制部根据通信媒体信息,识别通信对方的通信媒体和多个中继装置各自的通信媒体,在判别为通信对方具有的通信媒体不同于自己具有的通信媒体的情况下,生成包含多个中继装置中可通过自己具有的通信媒体与通信对方通信的中继装置的全部路径的列表,根据通信成本信息,识别多个中继装置各自的通信成本,从路径列表中,检测作为通信成本最低的路径的通信路径。 Path control unit according to the communication media information, identifying the communicating party communications media and a plurality of relay devices each communication medium, in determining the communication media as a communication partner is different from the communication medium has its own case has generated comprising a plurality of Following the list of all means by a path of its own relay apparatus having a communication medium for communication with the communication counterpart, according to the communication cost information, the cost of identifying a plurality of respective communication relay apparatus from the path list, the communication is detected as the lowest cost communication path path. 通信控制部通过通信路径与通信对方通信,上述拥塞控制部按照拥塞频度超出阈值的时间来改变上述通信成本的值。 A communication control unit in communication with each other through a communication path communicating said congestion control unit according to the frequency of congestion exceeds a threshold time to change the value of the communication cost.

[0032] 发明效果 [0032] Effect of the Invention

[0033] 可实现通信效率的提高。 [0033] enables communication efficiency.

[0034] 本发明的上述及其他目的、特征及优点可以通过表示作为本发明的例的优选实施例的附图以及相关联的以下说明变得清楚。 [0034] The above and other objects, features and advantages of the present invention can be represented by the following description and drawings, and associated cases become apparent as a preferred embodiment of the present invention.

附图说明 Brief Description

[0035] 图1是通信系统的构成例的示图。 [0035] FIG. 1 is a diagram showing a configuration example of a communication system.

[0036] 图2是中继装置的构成例的示图。 [0036] FIG. 2 is a diagram illustrating an example of a relay device.

[0037] 图3是通信装置的构成例的示图。 [0037] FIG. 3 is a diagram showing a configuration example of a communication device.

[0038] 图4是通信系统的一例的示图。 [0038] FIG. 4 is a diagram of an example of a communication system.

[0039] 图5是标签信息的传递的情形的示图。 [0039] FIG. 5 is a diagram of the case of transmitting label information.

[0040] 图6是标签信息及通信媒体信息的示图。 [0040] FIG. 6 is a diagram label information and communications media information.

[0041] 图7是路径的示图。 [0041] FIG. 7 is a diagram of the path.

[0042] 图8是路径的示图。 [0042] FIG. 8 is a diagram of the path.

[0043] 图9是路径的示图。 [0043] FIG. 9 is a diagram of the path.

[0044] 图10是路径的示图。 [0044] FIG. 10 is a diagram of the path.

[0045] 图11是路径的示图。 [0045] FIG. 11 is a diagram of the path.

[0046] 图12是路径的示图。 [0046] FIG. 12 is a diagram of the path.

[0047] 图13是路径的示图。 [0047] FIG. 13 is a diagram of the path.

[0048] 图14是路径的示图。 [0048] FIG. 14 is a diagram of the path.

[0049] 图15是路径列表的不图。 [0049] FIG. 15 is not the path of the list.

[0050] 图16是各个路径的削减成本的示图。 [0050] FIG. 16 is a cost-cutting each path diagram.

[0051] 图17是呼叫控制信息的传递的情形的示图。 [0051] FIG. 17 is a diagram of the call control information transfer situations.

[0052] 图18是确立了最优路径的通信系统的示图。 [0052] FIG. 18 is a diagram of a communication system to establish the optimal path.

[0053] 图19是VoIP的语音通信的示图。 [0053] FIG. 19 is a diagram of VoIP voice communication.

[0054] 图20是经由网关装置的VoIP的语音通信的示图。 [0054] FIG. 20 is a VoIP gateway device shown in FIG voice communication via.

[0055] 图21是经由网关装置的VoIP的语音通信的示图。 [0055] FIG. 21 is a VoIP gateway apparatus shown in FIG voice communication via.

[0056] 图22是经由网关装置的VoIP的语音通信的示图。 [0056] FIG. 22 is a VoIP gateway device shown in FIG voice communication via.

具体实施方式 DETAILED DESCRIPTION

[0057] 以下,参照附图说明本发明的实施例。 [0057] Referring to the drawings illustrate embodiments of the present invention. 图1是通信系统的构成例的示图。 Figure 1 is a diagram illustrating an example of a communication system. 通信系统I具备通信装置10、20及中继装置30 — I〜30 — N(总称为中继装置30)。 Communication system I includes a communication device and the relay device 10, 20, 30 - I~30 - N (collectively referred to as the relay device 30).

[0058] 中继装置30包含标签信息控制部30A。 [0058] The relay device 30 includes a tag information control unit 30A. 标签信息控制部30A生成并发送标签信息,该标签信息包含作为与其他装置通信时的通信媒体(通信形式)的信息的通信媒体信息和作为通过自装置通信时发生的通信成本的信息的通信成本信息的至少一方。 Tag information control unit 30A generates and transmits the tag information, the tag information includes communications media as communication with other devices (communication format) of information and communication media information through a communication cost information as communication costs from occurring when the means of communication at least one of information.

[0059] 通信装置20包含路径控制部21和通信控制部22。 [0059] communication device 20 includes a path control unit 21 and a communication control unit 22. 路径控制部21接收标签信息,生成与通信对方进行通信时的路径的列表,从路径列表中检测适合进行通信的通信路径。 List path control unit 21 receives the tag information, generate a communication with the communication partner when the path from the list of paths suitable for the detection of the communication path. 通信控制部22执行用于与通信对方(通信装置10)通信的通信控制。 22 for performing communication control with the communication partner (communication device 10) communicating the communication control unit.

[0060] 这里,中继装置30的标签信息控制部30A接收从其他中继装置传递来的标签信息,将接收到的标签信息和与本中继装置有关的标签信息一起传递给进行通信请求的通信装置20。 [0060] Here, the relay device 30 of the tag information control section 30A receives the tag information transmitted from the other relay apparatus to the received tag information and the relay apparatus related information is passed to the tag communication request communication device 20.

[0061] 通信装置20的路径控制部21接收通过中继装置30 — I〜30 — N传递的标签信息。 [0061] communication device path control unit 20 received via the relay device 30 21 - I~30 - label information N transmission. 然后,根据标签信息中的通信媒体信息,识别通信装置10的通信媒体和中继装置30 -1〜30 — N各自的通信媒体。 Then, based on the tag information in the information communication medium, communication medium identifying the communication device and the relay device 10 of the 30 -1~30 - N respective communication media.

[0062] 在判别作为通信对方的通信装置10具有的通信媒体不同于自身(通信装置20)具有的通信媒体的情况下,从中继装置30 — I〜30 — N中,生成包含通过自身具有的通信媒体可与通信装置10进行通信的中继装置的全部路径的列表。 [0062] In determining the communication media as a communication means for communicating different from each other 10 have their own (communication device 20) having a communication medium under conditions, from the relay device 30 - I~30 - N, the resulting contained by itself has Communication media may be a list of all paths in communication relay device with the communication device 10.

[0063] 然后,根据标签信息中的通信成本信息,识别中继装置30 — I〜30 — N各自的通信成本,在路径列表中,检测作为通信成本最低的路径的通信路径。 [0063] Then, based on the tag information communication cost information, identifying the relay device 30 - I~30 - N respective communication costs, in the path list, the communication path is detected as a communication lowest-cost path. 通信控制部22中,通过检测的通信路径与通信装置10通信。 The communication control unit 22, the communication with the communication device through a communication path 10 of the detection.

[0064] 接着,说明中继装置30的构成。 [0064] Next, the constitution of the relay device 30. 图2是中继装置30的构成例的示图。 Figure 2 is a diagram showing a configuration example relay device 30. 中继装置30具备标签信息控制部30A、故障控制部30b、拥塞控制部30C、呼叫控制部30D及媒体转换部30E。 Label information relay apparatus 30 includes a control unit 30A, the fault control unit 30b, congestion control unit 30C, 30D and the call control section media conversion unit 30E.

[0065] 标签信息控制部30A包含通信媒体信息生成部30A — I和通信成本信息生成部30A - 2。 [0065] label information control section 30A includes a communication media information generating unit 30A - I and the communication cost information generation section 30A - 2. 通信媒体信息生成部30A -1生成通信媒体信息。 Communication media information generation unit generates the communication media information 30A -1. 作为通信媒体信息,例如生成域信息、IP版本信息、编解码器信息、传输信息内的至少一个。 As a communication medium information, e.g., generated field information, at least one of IP version information, codec information, within the transmitting information.

[0066] 域信息是表示自身(中继装置30)是属于网络(专用网络等)内的哪个域的信息。 [0066] domain information is represented itself (relay device 30) is part of a network (private network, etc.) within which domain information. IP版本信息是表示中继装置30的IP版本是IPv4还是IPv6的信息。 IP version information is information indicating IP version relay device 30 is IPv4 or IPv6 information.

[0067] 编解码器信息是表示中继装置30具有怎样的编码/解码的形式的信息。 [0067] codec information is a kind of relay device 30 has a coding / decoding of information in the form. 例如,当为声音编解码器的情况下,是表示具有ITU -T G.711的编解码器还是具有ITU -TG.729的编解码器或具有两方的编解码器功能的信息。 For example, when the voice codec is the case, it is having ITU -T G.711 codecs or having ITU -TG.729 codec or have information both codec functions.

[0068] 传输信息是表示中继装置30以怎样的传输功能执行数据通信的信息。 [0068] transmit information relay apparatus 30 is a diagram showing how the transmission function to perform data communication information. 例如,是表示以ATM (Asynchronous Transfer Mode:异步传输模式)通信还是以SONET/SDH(Synchronous Optical Network/Synchronous Digital Hierarchy:同步光纤网/ 同步数字体系)通信的传输功能的种类的信息。 For example, it is expressed in ATM (Asynchronous Transfer Mode: ATM) communication or in SONET / SDH (Synchronous Optical Network / Synchronous Digital Hierarchy: Synchronous Optical Network / Synchronous Digital Hierarchy) type of information transmission function of communication.

[0069] 另外,通信成本信息生成部30A — 2生成通信成本信息。 [0069] In addition, the communication cost information generation unit 30A - 2 generates communication cost information. 通信成本是指经由中继装置30通信时发生的成本,例如,与通过经由自身而产生的迟延量和因自身的编解码器产生的信号劣化的程度(若为声音编解码器则是声音数据的劣化程度)等相应。 Communication costs are those occurred when the communication device via the relay 30, for example, and through the delay amount generated by its own degree of signal deterioration due to their own codecs produced, and (if the sound codec is the audio data The degree of deterioration) and other relevant. 通信成本信息生成部30A - 2中,按每个中继装置将这些参数数值化,生成为通信成本信息。 Communication cost information generation unit 30A - 2, the relay apparatus for each of the values of these parameters, is generated as the communication cost information.

[0070] 另一方面,故障控制部30b在故障发生时,检测该故障部位,生成包含故障部位的故障信息,向相邻装置传递。 [0070] On the other hand, the control unit 30b fault when a fault occurs, the fault position detection, error message is generated that contains the failed parts of neighboring devices to pass. 拥塞控制部30C检测中继通信时发生的拥塞,根据检测出的拥塞的程度,将通信成本信息生成部30A - 2生成的通信成本的值设定成可变。 Congestion occurs when detecting relay communication congestion control unit 30C, according to the degree of congestion detected, the communication cost information generation unit 30A - 2 is set to a variable value generation communication costs.

[0071] 例如,进行控制,使得在拥塞频度超过预先设定的阈值一定时间的情况下,使通信成本的值上升,不超过阈值的情况下,使通信成本的值减少。 [0071] For example, the control is such that in the case where a predetermined time threshold of congestion exceeds a predetermined frequency, so that the value of communication cost rises, does not exceed the threshold value, so that the value of communication cost reduction. 这样,通过根据拥塞状态改变通信成本的值,可以生成符合当前的通信状态的通信成本的信息。 Thus, by changing the value according to the congestion status of the communication cost, it can be generated with the current communication state of the communication cost information.

[0072] 呼叫控制部30D根据从通信装置10或通信装置20发送的呼叫控制信息,识别出向哪个装置(中继装置或通信装置)生成通路而不向哪个装置生成通路,进行生成通信路径的通路的呼叫控制。 [0072] The call control section 30D according to the call control information transmitted from the communication device 10 or the communication device 20, which recognizes the device (relay device or the communication means) without generating channel generating channel to which means perform communication path generating path call control.

[0073] 媒体转换部30E进行将一方的通信媒体的数据转换为另一方的通信媒体的数据的控制。 [0073] Media conversion section 30E performs one of the communication media data into the other communication media of the control data. 例如,作为通信媒体,若具有ITU — T G.711和ITU — T G.729,则将ITU — T G.711的声音数据转换为ITU -TG.729的声音数据,或将ITU -TG.729的声音数据转换为ITU-T G.711的声音数据。 For example, as a communication medium, if having ITU - T G.711 and ITU - T G.729, then the ITU - T G.711 audio data is converted to ITU -TG.729 sound data, or the ITU -TG. 729 sound data is converted to ITU-T G.711 audio data.

[0074] 接着说明通信装置20的构成。 [0074] Next, the communication device 20 is configured. 图3是通信装置20的构成例的示图。 Figure 3 is a diagram of a configuration example of a communication device 20. 通信装置20具备路径控制部21和通信控制部22。 Communication device 20 includes a path control unit 21 and a communication control unit 22. 路径控制部21包含通信媒体识别部21A、路径列表生成部21b及通信路径检测部21C。 Path control section 21 includes a communication medium identification section 21A, the path list generation unit 21b and a communication path detection unit 21C. 通信控制部22包含呼叫控制信息生成部22A。 The communication control unit 22 includes a call control information generating unit 22A.

[0075] 通信媒体识别部21A根据从通信装置10及中继装置30 — I〜30 — N传递的全部的标签信息中的通信媒体信息,识别作为通信对方的通信装置10的通信媒体和中继装置30 — I〜30 — N各自的通信媒体。 [0075] According to the communication medium identification section 21A from the communication apparatus 10 and the relay device 30 - I~30 - N all tag information transmitted in the communication medium information, the communication device identifying the communicating party of the communication medium 10 and the relay unit 30 - I~30 - N respective communication media.

[0076] 路径列表生成部21b在作为通信对方的通信装置10具有的通信媒体不同于自身具有的通信媒体的场合,检测中继装置30 — I〜30 — N中通过哪个中继装置或绕过哪个中继装置(不通过哪个中继装置)可与通信装置10通信的全部路径,生成路径列表。 [0076] path list generation unit 21b in the communication media as a communication device having a communication partner of 10 occasions different from the communication medium itself has detected the relay device 30 - I~30 - N in which the relay device through or bypass Which relay device (not means by which relay) path communicating with all the communication device 10, generating a list of paths.

[0077] 通信路径检测部21C根据从中继装置30 — I〜30 — N传递的标签信息中的通信成本信息,识别中继装置30 — I〜30 — N各自的通信成本。 [0077] According to the communication path detecting unit 21C from the relay device 30 - I~30 - N tag information transmitted in the communication cost information identifying relay device 30 - I~30 - N respective communication costs. 然后,在生成的路径列表中,检测通信成本最低的通信路径。 Then, in the path list generated, the detection of communication lowest cost communication path.

[0078] 呼叫控制信息生成部22k生成并发送用于通过检测的通信路径与通信装置10通信的呼叫控制信息。 [0078] The call control information generation section 22k generates and transmits a call via a communication path 10 communicating with the communication device detects control information. 呼叫控制信息中包含用于指示对位于通信路径上的中继装置生成通路的信息和用于指示对不位于通信路径上的中继装置不要生成通路的信息。 The call control information includes means for indicating the relay in the communication path generates the information on the path and means for indicating the relay is not located on a communication path not generated path information.

[0079] 接着,举例详细说明检测最优通信路径的控制。 [0079] Next, for example described in detail the optimal communication path control testing. 另外,以下,将中继装置称为网关装置。 In the following, the relay device called a gateway device. 图4是通信系统的一例示图。 Figure 4 is a diagram of an example of a communication system. 通信系统IA具备通信装置10、20、网关装置31〜35。 IA communication system includes a communication means 10, 20, 31~35 gateway apparatus.

[0080] 在通信装置10和网关装置31间确立通路P1,在网关装置31、32间确立通路P2,作为通信系统IA的当前的通路确立状态。 [0080] established in 31 10 and the gateway device communication device path P1, between 31 and 32 establish a gateway device path P2, as the current path of the establishment of the state of the communication system IA.

[0081] 另外,在网关装置32、33间确立通路P3,在网关装置33、34间确立通路P4。 [0081] In addition, between 32 and 33 establish a gateway device path P3, between 33 and 34 establish a gateway device path P4. 而且,在网关装置34、35间确立通路P5,在网关装置35和通信装置20间确立通路P6。 Moreover, between 34 and 35 establish a gateway device path P5, between the gateway device 35 and the communication device 20 established path P6.

[0082] 另一方面,作为装置间使用的通信媒体,通信装置10和网关装置31间可相互通过通信媒体A进行通信,网关装置31、32间可相互通过通信媒体B进行通信。 [0082] On the other hand, as a communication medium between the apparatus used, the gateway device 10 and the communication device 31 can communicate with each other, the gateway device via a communication medium between A 31,32 can communicate with each other through a communication medium B.

[0083] 网关装置32、33间可相互通过通信媒体A进行通信,网关装置33、34间可相互通过通信媒体B进行通信。 [0083] 32, 33 between the gateway device can communicate with each other, the gateway device via a communication medium between A 33,34 can communicate with each other through a communication medium B. 而且,网关装置34、35间可相互通过通信媒体A进行通信,网关装置35和通信装置20间可相互通过通信媒体B进行通信。 Moreover, between 34 and 35 gateway device can communicate with each other, the gateway device 35 and the communication device via a communication medium A 20 rooms can communicate with each other through a communication medium B.

[0084] 而且,另外,对于网关装置31〜35的通信成本(以下,也简称为成本),网关装置31的成本设为2,网关装置32的成本设为3,网关装置33的成本设为4,网关装置34的成本设为5,网关装置35的成本设为6。 [0084] Moreover, in addition, the communication cost 31~35 gateway apparatus (hereinafter, also referred to as the cost), the cost of the gateway device 31 is set to 2, the cost of the gateway device 32 is set to 3, the cost of the gateway device 33 is set 4, the cost of the gateway device 34 is set to 5, the cost of the gateway device 35 is set to 6.

[0085] 图5是标签信息传递的情形的示图,图6是标签信息及通信媒体信息的示图。 [0085] FIG. 5 is a diagram of the tag information transmission case, FIG. 6 is a diagram of the tag information and communication media information. 通信系统IA上的各装置生成包含自身具有的成本和自身具有的通信媒体的信息在内的标签信息,向相邻装置发送。 Tag information of each device on the communication system IA comprises itself has generated cost information and communication media including itself has transmitted to the adjacent unit.

[0086] 网关装置31的自身成本为2,其生成通过通信媒体A与通信装置10通信且通过通信媒体B与网关装置32通信的消息的标签信息D1,向网关装置32发送。 [0086] The gateway device 31 is itself a cost of 2, which is generated by the communication with the communication device A communication medium 10 via a communication medium and the message communication with the gateway device 32 B tag information D1, transmitting to the gateway device 32.

[0087] 网关装置32的自身成本为3,其生成通过通信媒体A或通信媒体B与相邻网关装置通信的消息的标签信息D2,将标签信息D1、D2向网关装置33发送。 [0087] The gateway device 32 is itself a cost of 3, which generates a message gateway means for communicating via a communication medium or communication medium A B adjacent label information D2, the tag information D1, D2 is sent to the gateway device 33.

[0088] 网关装置33的自身成本为4,其生成通过通信媒体A或通信媒体B与相邻网关装置通信的消息的标签信息D3,将标签信息D3与标签信息D1、D2 —起向网关装置34发送。 [0088] The gateway device 33 is itself a cost of 4, which generates a message gateway means for communicating via a communication medium or communication medium A B adjacent label information D3, the tag information and the tag information D3 D1, D2 - from the gateway device 34 sent.

[0089] 网关装置34的自身成本为5,其生成通过通信媒体A或通信媒体B与相邻网关装置通信的消息的标签信息D4,将标签信息D4与标签信息Dl〜D3 —起向网关装置35发送。 [0089] The gateway device 34 itself to cost 5, which is generated by the communication medium or communication medium B A message gateway means for communicating with the adjacent label information D4, D4 and the tag information tag information Dl~D3 - from the gateway device 35 sent.

[0090] 网关装置35的自身成本为6,其生成通过以通信媒体A或通信媒体B与相邻网关装置通信的消息的标签信息D5,将标签信息D5与标签信息Dl〜D4 —起向通信装置20发送。 [0090] The gateway device 35 is itself a cost of 6, which is generated by the message A to a communication medium or communication medium to communicate with the gateway device B adjacent to the tag information D5, D5 and the tag information tag information Dl~D4 - starting the communication 20 transmitting apparatus.

[0091] 另外,上述中,通信装置20是进行通信请求的装置,因此示出了从通信装置10通过网关装置31〜35向通信装置20的方向的标签信息的传递,但是若通信装置10是进行通信请求的装置,则进行逆向的从通信装置20通过网关装置31〜35向通信装置10的方向的标签信息的传递。 [0091] In the above, the communication device 20 is a means for communicating requests, thus illustrating by gateway apparatus 31~35 tag information transmitted from the communication device 10 toward the communication device 20, but if the communication device 10 is communication request means, is performed by the gateway device 31~35 reverse direction is transmitted to the communication device 10 from the tag information communication device 20.

[0092]另外,作为标签信息中的通信媒体信息,不仅是自己具有的通信媒体的种类信息,也可以是可详细知道标签信息传递时的网络拓扑逻辑的信息,以便通过哪个通信媒体与哪个装置确立当前通路。 [0092] Further, as the tag information in the information communication medium, not only a communication medium having its own type information, may also be detailed know the network topology logic tag information when the information is transmitted to a communication medium by which means with which to establish the current path.

[0093] 另一方面,网关装置31具有从通信装置10到通信装置20的方向(A — B)的转换功能和从通信装置20到通信装置10的方向(B —A)的转换功能,将其定义为媒体转换信息(A 一B) ο [0093] On the other hand, from the gateway apparatus 31 has a direction (A - B) 10 to the communication device communication device 20 conversion function and conversion function from a direction (B -A) 20 to the communication apparatus of the communication device 10, the It is defined as media conversion information (A a B) ο

[0094] 另外,网关装置32具有从通信装置10到通信装置20的方向(B — A)的转换功能和从通信装置20到通信装置10的方向(A —B)的转换功能。 [0094] In addition, the gateway apparatus 32 has a direction from the communication device 10 to the communication device 20 (B - A) conversion function and conversion function from a direction (A -B) 20 to the communication device 10 of the communication device. 将其定义为媒体转换信息(B 一A) ο Which is defined as media conversion information (B a A) ο

[0095] 这里,考虑通信装置20与通信装置10进行通信的情况。 [0095] Here, consider the communication device 20 and communication device 10 perform communication. 通信装置20接收传递的标签信息Dl〜D5,识别通信装置10和网关装置31〜35的各装置具有的通信媒体。 Communication device 20 receives the transmitted tag information Dl~D5, identifying the communication device and the gateway device 10 having respective means 31~35 communication medium.

[0096] 通信装置20与通信装置10通信时,最好不经由网关装置等而能够直接通信。 [0096] When the communication device 20 to communicate with the communication apparatus 10, but preferably not able to communicate directly via the gateway device or the like. 但是,该例中,根据标签信息D1,了解到通信装置10的通信媒体是通信媒体A,不同于自身的通信媒体B,因此,识别为无法直接通信,需要经由网关装置31〜35的媒体转换通信。 However, in this case, according to the label information D1, communication media learned communication device 10 is a communication medium A, is different from the own communication medium B, therefore, can not be identified as direct communication, via the gateway requires media conversion apparatus of 31~35 communications.

[0097] 另外,若通信装置10具有与通信装置20相同的通信媒体B,则通信装置20根据标签信息Dl识别该消息,不经由网关装置31〜35,对通信装置10直接执行通信媒体B的通信。 [0097] In addition, if the communication device 10 has a communication device 20 of the same communication medium B, the communication device 20 identified by the tag information Dl of the message, not via the gateway device 31~35, direct communication apparatus 10 performs communication medium B communications.

[0098]另外,这里的通信媒体与上述域信息、IP版本信息、编解码器信息、传输信息的至少一个相对应。 [0098] In addition, where the communication with said domain information medium, at least one corresponding IP version information, codec information, the transmission of information.

[0099] 通信媒体为域信息时,例如,某装置(装置A)具有域Dl而其他装置(装置b)具有不同于域Dl的域D2时,无法进行装置A、b的直接通信(地址的唯一性在域中关闭,跨域无法进行通信)。 [0099] Communication media when domain information, e.g., a device (device A) and the other having a domain Dl apparatus (apparatus b) a D2 domain different from the domain Dl, the apparatus can not be A, b direct communication (addresses Uniqueness in the domain closed cross-domain can not communicate). 从而,该情况下,经由具有地址形式的转换功能的网关装置,执行装置A、b间的通十目ο Thus, in this case, via a gateway device with address in the form of conversion functions, perform through 10 head ο means A, b between

[0100] 通信媒体为IP版本信息时,例如,装置A为IPv4,装置b为IPv6时,无法进行装置A、b的直接通信。 When the [0100] communication media as IP version information, e.g., device A is IPv4, IPv6 device (b) is not possible when means A, b of direct communication. 从而,经由具有IPv4和IPv6的两方的通信功能的网关装置,执行装置A、b间的通十目ο Thus, via a gateway device has IPv4 and IPv6 communication functions of the two parties, the Executive through 10 head ο means A, b between

[0101] 通信媒体为编解码器信息时,例如,装置A具有ITU — T G.711而装置b具有ITU —T G.729时,无法进行装置A、b的直接通信。 [0101] Communication media when codec information, e.g., device A has ITU - T G.711 and when the apparatus b having ITU -T G.729, can not communicate directly apparatus A, b's. 从而,经由具有ITU — T G.711和ITU — TG.729的转换功能的网关装置,执行装置A、b间的通信。 Thus, by having the ITU - T G.711 and ITU - gateway device TG.729 conversion function, do the communication device A, b between.

[0102] 通信媒体为传输信息时,例如,装置A具有ATM的传输功能而装置b具有IP的传输功能时,无法进行装置A、b的直接通信。 When [0102] When a communication medium for the transmission of information, e.g., device A and the device having the transmission function b ATM transmission functions with IP, can not communicate directly apparatus A, b's. 从而,经由具有ATM和IP的转换功能的网关装置,执行装置A、b间的通信。 Thus, via a gateway device has ATM and IP conversion function, performing communication device A, b between.

[0103] 从而,即使通信媒体为上述的哪个信息,装置A、b双方若具有相同通信媒体则可相互通信,若不具有相同通信媒体则不可相互通信,而经由进行适当的媒体转换的网关装置进行通信。 [0103] Thus, even if the information of the communication medium to which the apparatus A, b if both have the same communication medium can communicate with each other, if not the same communication medium to communicate with each other, and the gateway device via the appropriate media conversion communication.

[0104] 接着,说明通信系统IA中的通信装置10、20间的多个路径。 [0104] Next, a plurality of paths of communication systems IA communication means between 10 and 20. 通信装置20根据记载于标签信息Dl〜D5中的通信媒体信息,检测通信系统IA内的网关装置31〜35内通过哪个网关装置或绕过哪个网关装置(不通过哪个网关装置)而可与通信装置10进行通信的路径。 Communication device 20 is described in the tag information according to Dl~D5 communication media information within the gateway device 31~35 IA detection communication system within which the gateway device through which a gateway device or bypass (which does not pass through the gateway device) and can be used with communication device 10 communicating path.

[0105] 在通信系统IA的情况下,通信装置20可与通信装置10通信的主路径考虑为8个路径(设为路径LI〜L8)。 [0105] IA in the case of a communication system, a communication device 20 communicating with the main path of communication device 10 is considered eight paths (path set LI~L8). 以下说明各路径。 The following description of each path.

[0106] 图7是路径LI的示图。 [0106] FIG. 7 is a diagram of the path LI. 根据标签信息D1、D3,可知通信装置10和网关装置33可通过通信媒体A通信(根据标签信息D1,通信装置10可通过通信媒体A通信(因为根据标签信息Dl可知网关装置31具有媒体转换信息(A - B),根据标签信息D3可知网关装置33具有媒体转换信息(A - B)),根据标签信息D3、D4,可知网关装置33和网关装置34可通过通信媒体B通信(因为根据标签信息D3可知网关装置33具有通信媒体B,根据标签信息D4可知网关装置34具有通信媒体B)。 Label information D1, D3, known communication device 10 and the gateway device 33 may (based on the tag information D1, the communication device 10 may (as understood in accordance with the tag information Dl media gateway device 31 to convert information in accordance with a communication medium via a communication through a communication medium A A communications (A - B), based on the tag information D3 apparent gateway device 33 having a media conversion information (A - B)), based on the tag information D3, D4, found the gateway device 33 and the gateway device 34 may communicate via a communication medium B (as under the label 33 shows that the gateway device information D3 includes a communication medium B, based on the tag information D4 understood the gateway device 34 having a communication medium B).

[0107] 另外,根据标签信息D4、D5,可知网关装置34和网关装置35可通过通信媒体A通信,根据标签信息D5,可知网关装置35和通信装置20自身可通过通信媒体B通信。 [0107] In addition, according to the label information D4, D5, found the gateway device 34 and the gateway device 35 may communicate via a communication medium A, based on the tag information D5, it found that 20 itself may communicate via a communication medium B gateway device 35 and the communication device.

[0108] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置33、34、35及通信装置20的各装置的路径LI,作为通信装置10、20进行通信的路径。 [0108] Thus, based on the tag information, the communication system IA, detecting the presence of 10, 34 and 35 and the gateway device path LI communication device of each apparatus 20, 10 and 20 as a communication device for communication via a communication device path. 路径LI包含通路P7、通路P4、通路P5及通路P6。 LI path contains path P7, passage P4, P5 and access path P6.

[0109] 图8是路径L2的示图。 [0109] FIG. 8 is a diagram of the path L2. 根据标签信息Dl、D3可知通信装置10和网关装置33可通过通信媒体A通信,根据标签信息D3,可知网关装置33和通信装置20自身可通过通信媒体B通信。 The tag information Dl, D3 understood the gateway device 10 and the communication device 33 may communicate via a communication medium A, based on the tag information D3, it found the gateway device 33 and the communication device 20 itself may communicate via a communication medium B.

[0110] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置33、通信装置20的各装置的路径L2,作为通信装置10、20进行通信的路径。 [0110] Thus, based on the tag information, the communication system IA, detecting the presence of 10, gateway apparatus 33, the path 20 of each device communication apparatus L2, the communication device 10, 20, the path of communication through the communication means. 路径L2包含通路P7、通路P12。 Path L2 contains passages P7, passage P12.

[0111] 图9是路径L3的示图。 [0111] FIG. 9 is a diagram of the path of L3. 根据标签信息D1、D5,可知通信装置10和网关装置35可通过通信媒体A通信,根据标签信息D5,可知网关装置35和通信装置20自身可通过通信媒体B通信。 The tag information D1, D5, known communication means 10 and the gateway device 35 may communicate via a communication medium A, based on the tag information D5, it found the gateway device 35 and the communication device 20 itself may communicate via a communication medium B.

[0112] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置35及通信装置20的各装置的路径L3,作为通信装置10、20进行通信的路径。 [0112] Thus, based on the tag information, the communication system IA, detecting the presence of 10, 35 of each device and the path communication device 20 gateway apparatus L3, the communication device 10, 20, the path of communication through the communication means. 路径L3包含通路P8、通路P6。 Path L3 contains passages P8, path P6.

[0113] 图10是路径L4的示图。 [0113] FIG. 10 is a diagram of the path of L4. 根据标签信息D1,可知通信装置10和网关装置31可通过通信媒体A通信,根据标签信息D1、D4,可知网关装置31和网关装置34可通过通信媒体B通信。 The tag information D1, the gateway device 10 and the known communication device 31 may communicate via a communication medium A, based on the tag information D1, D4, it found the gateway device 31 and the gateway device 34 may communicate via a communication medium B.

[0114] 另外,根据标签信息D4、D5,可知网关装置34和网关装置35可通过通信媒体A通信,根据标签信息D5,可知网关装置35和通信装置20自身可通过通信媒体B通信。 [0114] In addition, according to the label information D4, D5, found the gateway device 34 and the gateway device 35 may communicate via a communication medium A, based on the tag information D5, it found that 20 itself may communicate via a communication medium B gateway device 35 and the communication device.

[0115] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置31、34、35及通信装置20的各装置的路径L4,作为通信装置10、20进行通信的路径。 [0115] Thus, based on the tag information, the communication system IA, detecting the presence of 10, the path of each communication device 31,34,35 and 20 of the gateway device means L4, the communication device 10, 20 communicate via a communication device path. 路径L4包含通路P1、通路P9、通路P5及通路P6。 Path L4 contains passages P1, path P9, P5 and access path P6.

[0116] 图11是路径L5的示图。 [0116] FIG. 11 is a diagram of the path of L5. 根据标签信息D1,可知通信装置10和网关装置31可通过通信媒体A通信,且根据标签信息Dl,可知网关装置31和通信装置20自身可通过通信媒体B通信。 The tag information D1, the gateway device 10 and the known communication device 31 may communicate via a communication medium A, and in accordance with the tag information Dl, found 20 itself may communicate via a communication medium B gateway device 31 and the communication device.

[0117] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置31及通信装置20的各装置的路径L5,作为通信装置10、20进行通信的路径。 [0117] Thus, based on the tag information, the communication system IA, detecting the presence of 10, 31 and the gateway device path L5 communication means of each apparatus 20, 10 and 20 as a communication path of a communication apparatus through the communication means. 路径L5包含通路P1、通路P10。 Path L5 contain passages P1, passage P10.

[0118] 图12是路径L6的示图。 [0118] FIG. 12 is a diagram of the path L6. 根据标签信息D1,可知通信装置10和网关装置31可通过通信媒体A进行通信,根据标签信息D1、D2,可知网关装置31和网关装置32可通过通信媒体B进行通信。 The tag information D1, the gateway device 10 and the known communication device 31 can communicate via a communication medium A, based on the tag information D1, D2, it found the gateway device 31 and the gateway device 32 can communicate via a communication medium B.

[0119] 另外,根据标签信息D2、D5,可知网关装置32和网关装置35可通过通信媒体A通信,根据标签信息D5,可知网关装置35和通信装置20自身可通过通信媒体B通信。 [0119] In addition, according to the label information D2, D5, found the gateway device 32 and the gateway device 35 may communicate via a communication medium A, based on the tag information D5, it found the gateway device 35 and the communication device 20 itself may communicate via a communication medium B.

[0120] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置31、32、35及通信装置20的各装置的路径L6,作为通信装置10、20进行通信的路径。 [0120] Thus, based on the tag information, the communication system IA, detecting the presence of 10, the path of each communication device 31,32,35 and 20 of the gateway device apparatus L6, the communication device 10, 20 communicate via a communication device path. 路径L6包含通路P1、通路P2、通路Pll及通路P6。 Path L6 contains passages P1, path P2, Pll path and path P6.

[0121] 图13是路径L7的示图。 [0121] FIG. 13 is a diagram of the path of L7. 根据标签信息D1,可知通信装置10和网关装置31可通过通信媒体A通信,根据标签信息D1、D2,可知网关装置31和网关装置32可通过通信媒体B通信。 The tag information D1, the gateway device 10 and the known communication device 31 may communicate via a communication medium A, based on the tag information D1, D2, it found the gateway device 31 and the gateway device 32 may communicate via a communication medium B.

[0122] 另外,根据标签信息D2、D3,可知网关装置32和网关装置33可通过通信媒体A通信,根据标签信息D3,可知网关装置33和通信装置20自身可通过通信媒体B通信。 [0122] In addition, according to the label information D2, D3, found the gateway device 32 and the gateway device 33 may communicate via a communication medium A, based on the tag information D3, it found the gateway device 33 and the communication device 20 itself may communicate via a communication medium B.

[0123] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置31、32、33及通信装置20的各装置的路径L7,作为通信装置10、20进行通信的路径。 [0123] Thus, based on the tag information, the communication system IA, detecting the presence of 10, the path 20 of each device 32, 33 of the gateway device and a communication apparatus L7, the communication device 10, 20 communicate via a communication device path. 路径L7包含通路P1、通路P2、通路P3及通路P12。 Path L7 contains passages P1, path P2, P3 and access path P12.

[0124] 图14是路径L8的示图。 [0124] FIG. 14 is a diagram of the path L8. 根据标签信息D1,可知通信装置10和网关装置31可通过通信媒体A通信,根据标签信息D1、D2,可知网关装置31和网关装置32可通过通信媒体B通信。 The tag information D1, the gateway device 10 and the known communication device 31 may communicate via a communication medium A, based on the tag information D1, D2, it found the gateway device 31 and the gateway device 32 may communicate via a communication medium B.

[0125] 另外,根据标签信息D2、D3,可知网关装置32和网关装置33可通过通信媒体A通信,根据标签信息D3、D4,可知网关装置33和网关装置34可通过通信媒体B通信。 [0125] In addition, according to the label information D2, D3, found the gateway device 32 and the gateway device 33 may communicate via a communication medium A, based on the tag information D3, D4, it found the gateway device 33 and the gateway device 34 may communicate via a communication medium B.

[0126] 而且,根据标签信息D4、D5,可知网关装置34和网关装置35可通过通信媒体A通信,根据标签信息D5,可知网关装置35和通信装置20自身可通过通信媒体B通信。 [0126] Further, according to the label information D4, D5, found the gateway device 34 and the gateway device 35 may communicate via a communication medium A, based on the tag information D5, it found that 20 itself may communicate via a communication medium B gateway device 35 and the communication device.

[0127] 从而,根据上述的标签信息,在通信系统IA上,检测存在通过通信装置10、网关装置31、32、33、33、34、35及通信装置20的各装置的路径L8,作为通信装置10、20进行通信的路径。 [0127] Thus, based on the tag information, the communication system IA, detects the presence of the path 10 through the communication device, each device 31,32,33,33,34,35 gateway device and communication device 20 L8, as the communication devices 10, 20 perform communication path. 路径L8包含通路P1、通路P2、通路P3、通路P4、通路P5及通路P6。 Path L8 contains passages P1, path P2, passage P3, passage P4, P5 and access path P6. 另外,图15表示包含路径LI〜L8的路径列表(图的路径列表的构成为一例)。 In addition, Figure 15 shows the path contains the path LI~L8 list (block diagram of an example of the path list).

[0128] 接着,说明检测出的各个路径的削减成本的计算。 [0128] Next, calculate the cost-cutting detected respective paths. 图16是各个路径的削减成本的示图。 Figure 16 is a cost-cutting each path diagram. 路径LI是通过网关装置33、34、35,绕过网关装置31、32的传送线路。 LI is a path through the gateway device 33,34,35, transmission line 31 bypassing the gateway device. 因此,对于路径LI,根据标签信息D1、D2,削减成本成为5( = 2+3) ο Therefore, the path LI, based on the tag information D1, D2, cost reduction becomes 5 (= 2 + 3) ο

[0129] 路径L2是通过网关装置33,绕过网关装置31、32、34、35的传送线路。 [0129] L2 is the path through the gateway device 33, the transmission lines 31, 32 bypassing the gateway device. 因此,对于路径12,根据标签信息01、02、04、05,削减成本成为16 ( = 2+3+5+6)。 Thus, the path 12, based on the tag information 01,02,04,05, cost reduction becomes 16 (= 2 + 3 + 5 + 6).

[0130] 路径L3是通过网关装置35,绕过网关装置31、32、33、34的传送线路。 [0130] path L3 through the gateway device 35, bypassing the gateway transmission line 31,32,33,34 devices. 因此,对于路径13,根据标签信息01、02、03、04,削减成本成为14 ( = 2+3+4+5)。 Thus, the path 13, based on the tag information 01,02,03,04, cost reduction becomes 14 (= 2 + 3 + 4 + 5).

[0131] 路径L4是通过网关装置31、34、35,绕过网关装置32、33的传送线路。 [0131] path L4 through the gateway device 31,34,35, 32 and 33 transmission lines to bypass the gateway device. 从而,对于路径L4,根据标签信息D2、D3,削减成本成为7 ( = 3+4)。 Thus, the path L4, according to the label information D2, D3, cost reduction becomes 7 (= 3 + 4).

[0132] 路径L5是通过网关装置31,绕过网关装置32、33、34、35的传送线路。 [0132] L5 is the path through the gateway device 31, the transmission path bypassing the gateway device 32,33,34,35. 因此,对于路径L5,根据标签信息D2、D3、D4、D5,削减成本成为18 ( = 3+4+5+6)。 Therefore, the path L5, according to the label information D2, D3, D4, D5, cost reduction becomes 18 (= 3 + 4 + 5 + 6).

[0133] 路径L6是通过网关装置31、32、35,绕过网关装置33的传送线路。 [0133] path L6 is via a gateway device 31,32,35, 33 transmission lines to bypass the gateway device. 因此,对于路径L6,根据标签信息D3、D4,削减成本成为9 ( = 4+5)。 Therefore, the path L6, based on the tag information D3, D4, cost reduction becomes 9 (= 4 + 5).

[0134] 路径L7是通过网关装置31、32、33,绕过网关装置34、35的传送线路。 [0134] path L7 is through the gateway device 31, 32, 34, 35 of the transmission line to bypass the gateway device. 因此,对于路径L7,根据标签信息D4、D5,削减成本成为11( = 5+6)。 Therefore, the path L7, according to the label information D4, D5, cost reduction becomes 11 (= 5 + 6).

[0135] 路径L8是通过网关装置31〜35,不绕过哪个网关装置的传送线路。 [0135] path L8 is 31~35 through the gateway device, the transmission line which gateway device is not bypassed. 因此,对于路径L8,削减成本成为O。 Therefore, the path L8, cut costs to become O.

[0136] 接着,说明最优通信路径的检测处理及呼叫控制信息的生成处理。 [0136] Next, the detection processing and call optimal communication path control information generation processing. 从图16可知,路径LI〜L8的削减成本中,最大值为18。 From Fig. 16, the path LI~L8 cut costs, the maximum is 18. 从而,通信系统IA中,在通信装置10、20间进行通信时,削减成本为18的路径L5成为可将成本抑制为最低而进行通信的传送线路,因此,通信装置20选择路径L5作为最优通信路径。 Thus, the communication system IA, when the communication between the communication devices 10, 20, 18 to cut costs for the path L5 becomes cost can be suppressed to a minimum and the communication line for transmission, therefore, the communication apparatus 20 selects the path as the optimal L5 communication path.

[0137] 图17是呼叫控制信息的传递情形的示图。 [0137] FIG. 17 is a transfer call control information in the case shown in FIG. 通信装置20确定通过选择的路径L5,绕过网关装置32、33、34、35,经由网关装置31与通信装置10进行通信。 By selecting means 20 determines the communication path L5, bypassing the gateway device 32,33,34,35, 31 via the gateway device 10 communicates with the communication apparatus.

[0138] 通信装置20生成包含涉及网关装置31的到对象装置的生成通路的指示、涉及网关装置32、33、34、35的绕过消息的内容(不要生成通路的指示)的呼叫控制信息。 [0138] communication device 20 comprising generating means to generate an indication of the target path relates to a gateway device 31, relates to a gateway device to bypass the content of the message 32,33,34,35 (not generation instruction path) of the call control information.

[0139] 通信装置20向网关装置35发送呼叫控制信息。 [0139] communication means 20 to the gateway device 35 sends the call control information. 呼叫控制信息通过当前设定的通路,按照网关装置35、34、33、32、31的顺序传递到通信装置10为止。 Call control information through the current set of paths to pass the order to the gateway device 35,34,33,32,31 10 until the communication device.

[0140] 图18是确立了最优路径L5的通信系统的示图。 [0140] FIG. 18 is to establish the optimal path L5 diagram of a communication system. 由各装置接收呼叫控制信息,识别出自身进行哪个呼叫控制。 Means for receiving each call control information, which identified itself call control. 从而,在通信装置10和网关装置31之间确立通路P1,在网关装置31和通信装置20之间确立通路P10。 Thus, between the gateway device 10 and the device 31 to establish a communication path P1, between the gateway device 31 and the communication device 20 establishes passage P10. 从而,在通信系统IA上的通信装置10、20间的通信中,可通过成本最低的路径L5进行通信。 Thus, communication communication devices 10, 20 on the communication systems between the IA, they can communicate through L5 lowest cost path.

[0141]另外,上述中,作为检测最优通信路径时的通信成本的计算,计算路径LI〜L8的各个中绕过的网关装置的各个路径的成本的和,求出削减成本,将具有削减成本的最大值的路径设为最优通信路径。 [0141] In addition, the cost of each path of the above, as the calculation of the cost of communication to detect the optimal communication path, and calculate the route to bypass the LI~L8 each gateway device and, determined to cut costs, will have to cut The path cost is set to the maximum value of the optimal communication path.

[0142] 相对地,也可以计算路径LI〜L8的各个中通过的网关装置的各个路径的成本的和,将具有该成本的和(称为所需成本)的最小值的路径检测为最优通信路径。 Minimum path cost of the respective paths gateway device [0142] In contrast, the path may be calculated in each LI~L8 and through, and having the cost (called a cost required) is detected as the optimal communication path.

[0143] 例如,路径LI经由网关装置33、34、35,因此所需成本为15( = 4+5+6)。 [0143] For example, the path via the gateway device 33,34,35 LI, therefore the desired cost is 15 (= 4 + 5 + 6). 路径L2经由网关装置33,因此所需成本为4。 Path L2 via the gateway device 33, and therefore the cost of the desired 4. 路径L3经由网关装置35,因此所需成本为6。 Path L3 via the gateway device 35, and therefore the cost of the required 6.

[0144] 路径L4经由网关装置31、34、35,因此所需成本为13( = 2+5+6)。 [0144] path L4 via the gateway device 31,34,35, and therefore the cost required for the 13 (= 2 + 5 + 6). 路径L5经由网关装置31,因此所需成本为2。 Path L5 via a gateway device 31, and therefore the cost of the required 2.

[0145] 路径L6经由网关装置31、32、35,因此所需成本为11( = 2+3+6)。 [0145] path L6 via a gateway device 31,32,35, and therefore the cost required is 11 (= 2 + 3 + 6). 路径L7经由网关装置31、32、33,因此所需成本为9( = 2+3+4)。 Path L7 via a gateway device 31, 32, and therefore the cost required to 9 (= 2 + 3 + 4). 路径L8经由网关装置31、32、33、34、35,因此所需成本为20 ( = 2+3+4+5+6)。 Path L8 via a gateway device 31,32,33,34,35, and therefore the cost of the required 20 (= 2 + 3 + 4 + 5 + 6). 从而,上述的所需成本的最小值为2,最优通彳目路径检测为路径L5。 Thus, the minimum cost required for the above 2, the optimal path detection head through the left foot to the path L5.

[0146] 另外,上述中,根据通信媒体信息和通信成本信息检测最优通信路径,但是,也可以采用在标签信息中包含故障信息的方式进行传递,检测避开故障部位的路径的构成。 [0146] Further, in the above, according to the communication media information and communication cost information detection optimal communication path, however, can also be used in a manner that contains fault information in the tag information is passed, to avoid the faulty portion constituting the detection path.

[0147] 图2中如上所述,中继装置30的故障控制部30b在故障发生时检测该故障部位,生成包含故障部位的故障信息。 [0147] FIG. 2 described above, the fault control unit 30 of the relay device 30b detects the fault location when a fault occurs, the error message is generated that contains the failed site. 故障信息向通信装置20传递到相邻装置。 Failure information is transmitted to the communication device 20 to the adjacent unit.

[0148] 该情况下,也可以生成包含通信媒体信息、通信成本信息及故障信息的标签信息,向相邻装置传递,也可以与标签信息分开,在故障发生时刻仅仅传递故障信息。 [0148] In this case, you can also build contains the communications media information, communication cost information and tag information fault information is passed to an adjacent device may be separated from the tag information, the failure to pass the time only fault information.

[0149] 通信装置20中,接收故障信息,识别网络上发生故障的部位。 [0149] communication device 20 receives the fault information, the fault occurred on the site to identify the network. 然后,从路径列表中,提取避开了故障部位的路径,从提取出的路径中检测通信成本最低的通信路径。 Then, from the list of paths extracted parts to avoid the path failure, the communication lowest cost communications path detected from the extracted path. 通过这样的控制,即使故障发生时,也可以检测通信成本最低的最优通信路径。 By such control, even when a fault occurs, the communication may be detected lowest cost optimal communication path.

[0150] 如以上说明,根据通信系统1,传递包含通信媒体信息和通信成本信息的标签信息。 [0150] As described above, according to the communication system 1, comprising transmitting the tag information and communication media information and communication cost information. 然后,根据通信媒体信息,生成包含可通过自身具有的通信媒体与通信对方进行通信的中继装置的全部路径的列表,根据通信成本信息,识别多个中继装置各自的通信成本,在路径列表中,检测通信成本最低的路径。 Then, according to the communication media information, generates a list of all the path contains a communication relay device with the communication partner through the communication media itself has, according to the communication cost information, identifying a respective plurality of relay communication cost means, in the path list detected a communication path with the lowest cost.

[0151] 从而,通过选择最优通信路径,浪费的传送业务量减少,可以实现网络资源的减少,另外,还可以实现网关装置的设备数量的减少。 [0151] Thus, by selecting the optimal communication path, reducing wasteful traffic transmission, can be implemented to reduce network resources, additionally, the device may also be implemented to reduce the number of gateway device.

[0152] 而且,通过选择最优通信路径,可进行低迟延的传送,另外,可以将基于编解码器的编码/解码的反复而产生的信号劣化抑制在最小限度。 [0152] Further, by selecting the optimum communication path can be a low transmission delay, in addition, it can be generated based on codec encoding / decoding repetitive signal degradation minimized.

[0153] 上述仅仅示出了本发明的原理。 [0153] above merely illustrates the principles of the present invention. 而且,本领域的技术人员可进行大量的变形、变更,本发明不限于以上示出并说明的正确构成及应用例,对应的全部的变形例及等同物均包含在基于所附权利要求及其等同物的本发明的范围中。 Correct configuration and application examples Further, those skilled in the art can be a lot of variations and modifications, the present invention is not limited to the above shown and described, and accordingly, all of Modification and equivalents are included in the appended claims and based range of equivalents of the present invention.

[0154] 符号的说明 [0154] Explanation of symbols

[0155] I通信系统 [0155] I Communication System

[0156] 10,20通信装置 [0156] 10,20 communication device

[0157] 21路径控制部 [0157] 21 Route Control unit

[0158] 22通信控制部 [0158] The communication control unit 22

[0159] 30,30 — I 〜30 — N 中继装置 [0159] 30,30 - I ~30 - N relay device

[0160] 30A标签信息控制部 [0160] 30A tag information control unit

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
CN1922832A *17 Feb 200528 Feb 2007株式会社Ntt都科摩Packet transmission system, wireless base station, and route optimization method for packet transmission
CN100484293C *3 Jun 200429 Apr 2009华为技术有限公司A method for selecting code conversion device in voice-over-packet network
Classifications
International ClassificationH04L12/723
Cooperative ClassificationH04L45/507, H04L45/28, H04L45/12
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