WO2006086914A1 - Système de communication et méthode d’interconnexion de celui-ci - Google Patents

Système de communication et méthode d’interconnexion de celui-ci Download PDF

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Publication number
WO2006086914A1
WO2006086914A1 PCT/CN2005/000202 CN2005000202W WO2006086914A1 WO 2006086914 A1 WO2006086914 A1 WO 2006086914A1 CN 2005000202 W CN2005000202 W CN 2005000202W WO 2006086914 A1 WO2006086914 A1 WO 2006086914A1
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WO
WIPO (PCT)
Prior art keywords
communication
domain
message
module
gateway module
Prior art date
Application number
PCT/CN2005/000202
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English (en)
Chinese (zh)
Inventor
Zhen Tan
Xiaohu Dong
Xinhui Wang
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2005/000202 priority Critical patent/WO2006086914A1/fr
Priority to CN2005800423522A priority patent/CN101073232B/zh
Publication of WO2006086914A1 publication Critical patent/WO2006086914A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/30—Managing network names, e.g. use of aliases or nicknames
    • H04L61/3005—Mechanisms for avoiding name conflicts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/30—Managing network names, e.g. use of aliases or nicknames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5046—Resolving address allocation conflicts; Testing of addresses

Definitions

  • the present invention relates to a communication system and an interconnection method thereof, and particularly to a communication system and an interconnection method for accomplishing information exchange and service discovery between a plurality of communication systems having the same communication mode and having the same naming service. Background technique
  • a communication system usually consists of several communication nodes, each of which has at least one unique identifier in its communication system for communication addressing.
  • this description is usually generated by a specific sequence, such as an IP address.
  • this sequence is not conducive to the expansion and flexible configuration of the system, so a naming service is generated, which provides a mnemonic (name) for the communication node with specific requirements - mapping its communication identifier,
  • the application uses the name to access the communication node, and the conversion of the name and communication representation is done by the naming service before the actual communication.
  • the mnemonics used in the allocation and naming services of the internal communication identifiers will be basically the same or even identical.
  • the same communication systems must be relatively isolated to prevent communication interference and collisions. If these same communication systems require information interaction, it is necessary to redistribute the identity of the communication nodes for several systems participating in the communication. Two methods are usually used for reallocation.
  • the object of the present invention is to provide a communication system and an interconnection method thereof, which overcomes the adverse effects on the internal communication of the original system when the interconnection between communication systems of the same communication mode is currently implemented, and prevents the internal system from being communicated between the systems.
  • the conflict of naming services based on the internal communication mechanism of the original system, uses the internal communication mechanism of the original system to realize the interconnection of multiple communication systems.
  • the present invention provides a communication system, and the present invention defines a communication domain concept.
  • Each communication domain includes a communication subsystem, and the communication domain is distinguished by a unique identifier in each communication domain.
  • a communication gateway module is set up, and the communication gateway module uses the original internal communication mechanism of the communication nodes of the communication domain, and the information interaction between the communication gateway modules of each communication domain constitutes an interconnection between communication domains.
  • the communication gateway module completes the virtual communication connection between the internal nodes of the subsystem and the communication nodes of other communication subsystems, and acts as a conversion adapter for the communication protocol between different communication subsystems;
  • the communication system of the present invention includes more than one communication domain
  • the communication domain has a unique identifier, and the communication domain includes a communication subsystem and a communication gateway module, and the communication gateway module exchanges information with a communication node in a communication subsystem of the communication domain in which it is located.
  • the communication node and the communication gateway module both include an application function module and a domain.
  • the communication gateway module further comprises a transmission module for inter-domain communication and a reception module for inter-domain communication; and the application function module is configured to transmit to the domain communication driver module that the device needs to be sent The message or the message received from the domain communication driver module is used; the domain communication driver module is configured to package the sent message and then transmit the message to the internal communication driver module, or process the received message, and then extract the domain related message to An application function module; the internal communication driver module is configured to send a message to a communication node inside the communication system and receive a message sent by the internal communication node; and the sending and receiving module of the inter-domain communication is used to complete the inter-domain message. Send and receive.
  • the invention also provides a method for interconnecting the above communication system, comprising the following steps:
  • Step 1 One or more communication domains establish a communication connection through the communication gateway module, and establish a routing information table in each communication gateway module.
  • the routing information table includes a target domain and a link identifier, and is used to save and communicate with the communication.
  • the communication domain where the gateway module is located establishes the communication domain name and link identifier of the communication link;
  • Step 2 The communication gateway module notifies the communication node of the communication subsystem in the communication domain of the communication domain in the communication connection message;
  • Step 3 The communication nodes of different communication domains establish a communication link.
  • the communication subsystems in different communication domains are independent communication systems, and may be systems with the same communication mode or systems with different communication modes.
  • the present invention is applicable to interconnecting independent systems not designed to interconnect communication systems without altering the original communication mechanisms of these systems.
  • Existing communication interconnection systems require that interconnections between systems must be considered at the beginning of system design. Even if these systems do not participate in system interconnection in the future, they must be affected by the interconnection requirements in the later transformation. Transformation of communication mechanism; the present invention
  • the method can shield the conflict of communication addressing when the same communication mode system is interconnected. In the system using the naming service, the conflict of the same name can be avoided, and the present invention does not need to provide additional management and services, and utilizes the original communication. Mechanisms enable system interconnection. DRAWINGS
  • Figure 1 is a schematic structural view of the system of the present invention
  • Figure 2 is a flow chart of the method of the present invention
  • FIG. 3 is a schematic diagram of a system in which the system of the present invention adopts a mesh type interconnection manner
  • FIG. 4 is a schematic diagram of a system in which the system according to the present invention adopts a tree interconnection method
  • FIG. 5 is a schematic structural diagram of a communication node in a system according to the present invention.
  • FIG. 6 is a schematic structural diagram of a communication gateway module in a system according to the present invention.
  • FIG. 7 is a schematic diagram of a format of a message transmitted in the method according to the present invention.
  • FIG. 8 is a schematic diagram of a format of a message transmitted between communication nodes in the system of the present invention.
  • FIG. 9 is a schematic diagram showing the format of a message transmitted between two communication gateway modules in the present invention. detailed description
  • the invention defines a communication domain concept, the communication domain is distinguished by a unique identifier, each communication domain comprises a communication subsystem, and a communication gateway module is set in each communication domain, the communication gateway module and the communication domain
  • the internal information exchange of each communication node adopts the original internal communication mechanism of the subsystem.
  • Each communication domain forms the interconnection between the communication domains through the information interaction between the communication gateway modules.
  • the communication gateway module completes the internal nodes and other communication sub-systems of the subsystem.
  • the communication system of the present invention includes more than one communication domain 100, 200, 300, 400, as described
  • the communication domain has a unique identifier, and the communication domain includes one or more communication nodes
  • the communication gateway module Ga t e 1 interacts with the communication nodes Nodel and Node2 in the communication subsystem 110 of the communication domain in which it is located.
  • Each communication domain forms an interconnection between communication domains through the information exchange of its respective communication gateway modules.
  • Step 1 One or more communication domains establish a communication connection through the communication gateway module, and establish a routing information table in each communication gateway module.
  • the routing information table includes a target domain and a link identifier, and is used to save and communicate with the communication.
  • the communication domain where the gateway module is located establishes the communication domain name and link identifier of the communication link;
  • Step 2 The communication gateway module notifies the communication node of the communication subsystem in the communication domain of the communication domain in the communication connection message;
  • Step 3 The communication nodes of different communication domains establish a communication link.
  • the communication gateway module connects the communication domains, and the establishment of the link can be performed in two ways, one is a network interconnection manner, as shown in FIG. 3;
  • the interconnection method is shown in Figure 4.
  • the network interconnection mode that is, one or more communication domains are interconnected by a communication gateway module and a communication gateway module of another communication domain to form a mesh, and the communication gateway module periodically sends a broadcast message to the outside periodically during its lifetime.
  • the message includes the domain identifier of the communication domain in which it is located, and listens to the broadcast message sent from the outside, and determines whether the domain identifier in the received broadcast message is the target domain in the routing information table. If not, the domain is indicated.
  • the tree interconnection means that any one communication domain is used as the first layer communication domain, the first layer communication domain is connected to more than one communication domain, and the communication domain is used as the communication domain of the second layer.
  • Each second layer communication domain is connected to more than one communication domain, and the communication domain is used as a communication domain of the third layer, and each third layer communication domain is connected to more than one communication domain, and the communication domain is used as the communication domain of the fourth layer.
  • a routing information table is also established in each communication gateway module, and the routing information table includes a target domain and a link identifier, and is used for saving communication with the communication gateway module.
  • the domain establishes the communication domain name and link identifier of the communication link. Referring to FIG. 4, the routing information table of some of the communication domains is as shown in Table 1.
  • communication domain 1 is the first layer communication domain
  • communication domains 2, 3 are the second layer communication domain
  • communication domains 4, 5, and 6 are the third layer communication domain.
  • the communication domain 1 is directly connected to the communication domains 2, 3, and is connected to the communication domain 4, 5 via the communication domain 2, and is connected to the communication domain 6 via the communication i or 3, so when the communication domain 1 and the communication i or 2, 3, 4, 5, 6
  • the link identifiers are Linkl-2 and Linkl-3 respectively.
  • the link identifier is still Linkl-2.
  • the target domain to which it is connected is the communication domain 6, its link identifier is still Linkl-3.
  • communication domain 2 establishes a connection with communication i or 1, 3, 4, 5, 6, when the target domain to which it is connected is communication domain 4, 5, the link identifiers are Link2- 4, Link2- 5, when the target domain to which it is connected is the communication domain 1, 3, 6, its link identifier is Linkl - 2.
  • the link identifiers are all Link2-4.
  • the link identifier is Inner Link, and the message is sent to the internal system through the link.
  • the communication gateway module When the communication gateway module connects the communication domains, the communication gateway module sends a domain connection message notification to the communication node of the communication domain in which it is located. For the network connection mode, the communication gateway module communicates with all communication domains in the communication domain at the time of link establishment. The node broadcasts the domain connection message notification, and may also provide a query interface for the newly added communication node in the communication subsystem to query the connected domain, or when the internal communication node does not respond to the broadcast message.
  • the gateway module broadcasts the domain connection message notification to all communication nodes in the communication system of the communication domain where the link is established, and determines whether the communication domain in which the communication domain is located is the lowest layer of the established communication connection, and if not, Passing the connection message to all communication domains of the next layer connected thereto, and maintaining the routing information table information inside the communication gateway module, and determining the routing information table when establishing and disconnecting with other non-directly connected communication domains.
  • the information in it correctly reflects the link state changes between any two domains in the entire system.
  • Tree connection is a relatively simple connection method. There is no duplicate link. Therefore, the routing table changes only when the inter-domain link is established and disconnected.
  • any two of the entire system are created.
  • the link state between domains changes, not just the contiguous domain that has a physical connection directly with the domain. If yes, the process ends; wherein the domain connection message notification includes at least a domain identifier of a communication domain with which a communication connection is established.
  • the domain connection message notification may also include some messages required by the application layer, so that the application not only obtains the domain identifier required for subsequent inter-domain communication, but also identifies the application logic of each connection domain through the application layer message bound thereto.
  • the layer establishes its connection relationship.
  • the communication gateway module After the communication gateway module notifies the communication node of the communication domain in the communication domain of the communication domain, the communication node saves or does not save the connection message, and the communication node saves the inter-domain link state by setting the communication form of the destination domain.
  • the logical link establishment between the communication nodes is performed; if not saved, the communication node needs to establish a logical communication link with the communication nodes in other communication domains through the inter-domain broadcast.
  • the communication link between the communication node and the communication nodes in other communication domains is:
  • the communication node sends a message to the communication gateway module of the communication domain in which it is located, where the message includes the domain identifier of the communication domain in which it is located;
  • the communication gateway module broadcasts the received message according to the link identifier in the routing information table to the communication domain with which the communication is connected; if the format supported by the internal communication protocol of the domain is different from the format of the inter-domain communication protocol, the communication interface needs to be received.
  • the message sent by the communication node is converted into a format supported by the inter-domain communication protocol;
  • the communication gateway module connected to the communication node monitors the sent broadcast message, and sends the broadcast message to the communication node of the communication domain where the communication node sends a response, and the response of the receiving communication node is sent to the sending node.
  • the communication node of the end responds according to the source address (including the source domain representation) information in the received message, and the response message is also transmitted as the message of the inter-domain communication.
  • the communication gateway module monitors the sent broadcast message, it determines whether the domain identifier in the broadcast message is the same as the communication domain in which the broadcast message is located. If not, the communication gateway module follows the broadcast message according to the communication message. The correct link identifier of the internal routing information table is forwarded to the peer communication gateway module through the inter-domain link, and the peer communication gateway module determines whether the domain identifier in the broadcast message is the same as the communication domain in which the broadcast message is located, if not The same, then send down until the same communication domain as the domain identifier in the broadcast message is found, the broadcast message is sent to the communication node of the communication domain in which it is located, and the communication node sends a response, thus establishing the communication node and communication The communication connection of the node.
  • the broadcast message is converted into a format supported by the intra-domain communication protocol before being sent to the communication node of the communication domain in which it is located, and if the receiving communication node address included in the message is a logical name,
  • the communication gateway translates the logical name into a physical communication address through its system internal name service.
  • the communication node can exchange information with the communication node in other communication systems.
  • the structure diagram of the communication node in each communication subsystem is as shown in FIG. 5, including the application function module 1, the domain communication driver module (DCD) and the internal communication.
  • the driver module (the inner-Domain Communication Driver is called ICD), the domain communication driver module includes an Inter-domain Communication Interface (DCD-API) 21 and or
  • the internal communication driver module includes an Inner-Domain Communication Driver-Appliable Program Interface (ICD-API) 31 and Inner-Domain Communication Driver- Adaptor (ICD-ADP) 32;
  • the structure of the communication gateway module is basically the same as that of the communication node, and its structure is shown in Figure 6, including application functions.
  • Module 1' domain communication driver module, internal communication driver module, transmission module for inter-domain communication DCD-S) 41, and a receiving module (DCD-R) 42' for inter-domain communication
  • the application function module 1' is used for routing query, judgment and name conversion in the naming service;
  • the receiving module 42 of the inter-domain communication respectively maintains the transmission and reception of the inter-domain communication link.
  • the DCD-API 21 provides the same interface as the ICD-API 31, and the DCD-API 21 receives the transmission message of the application function module 1, and transparently transmits the transmission message to the internal communication driver. Module; then pass the message to other nodes in the domain;
  • the ICD-API 31 provides a corresponding messaging interface for use by the DCD, and the application function module 1 transmits the message to be sent to the DCD through the DCD-AP 121, and wraps the sent message (ie, adds/packages the inter-domain).
  • the message header is passed to the ICD-API 31, and the ICD-API 31 sends the message to the communication gateway module of the communication domain where the communication node is located.
  • all intra-domain messages are transparently transmitted to the application function module via ICD-ADP 32, DCD-ADP 22;
  • the inter-domain message is passed to the DCD-ADP 22 via the ICD-ADP 32, processed in the DCD-ADP 22, and the domain-related message is extracted and provided to the application function module 1.
  • the domain communication driver module 2 is configured to provide an inter-domain messaging interface (DCD-GAPI) 21' and an inter-domain message acceptance adaptation (DCD-GAPT) 22 to the application function module 1 in the communication gateway module, and the internal communication
  • the driver module includes an intra-domain communication driver interface (ICD-GAPI) 32' and an intra-domain communication driver adaptation (ICD-GADP) 32',
  • the intra-domain message When the intra-domain message arrives at the communication gateway module, the intra-domain message reaches the application function module 1 of the communication gateway module through ICD-GAPI 32' and DCD-GAPT 22'; the application function module 1' queries the IP address according to the destination domain address in the message.
  • the internal maintenance routing table determines the sending link. When there is a link to the destination domain in the routing table, the application function unit sends the message through the DCD-S 41' after the message is encapsulated.
  • each message is composed of a message header a and a message body b, as shown in Fig. 7.
  • the format of the message transmitted between the internal communication nodes of the system is "Internal Communication Header (IC-MSG-HEADER)" + “Message Body (MSG-BODY)", as shown in Figure 8; internal communication node and communication gateway module
  • IC-MSG-HEADER Internal Communication Header
  • MSG-BODY Message Body
  • internal communication node and communication gateway module The message transmission follows the internal communication mechanism, so its format does not change, only the "inter-domain communication message header (DC-MSG-HEADER)" is handled as part of the message body; the transmission format of the message between the two communication gateway modules As shown in Figure 9, the domain will be
  • the intercommunication message header "with" the internal communication header” is synthesized for the unified message header a.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Système de communication et méthode d’interconnexion de celui-ci. Le système comprend plusieurs domaines de communication possédant un identificateur unique, lesdits domaines incluant un sous-système de communication comportant un ou plusieurs nœuds de communication et un module passerelle de communication échangeant des informations avec les nœuds de communication du sous-système de communication du domaine auquel le module passerelle de communication appartient ; plusieurs domaines de communication établissent des connexions de communication par le module passerelle de communication et établissent une table d’informations de routage simultanément dans chaque module passerelle de communication ; le module passerelle de communication fournit le message de connexion au domaine aux nœuds de communication du sous-système de communication du domaine auquel le module passerelle de communication appartient ; les nœuds des différents domaines établissent la connexion de communication. La présente invention interconnecte les systèmes indépendants qui ne sont pas conçus pour constituer des systèmes de communication interconnectés, sans changer les mécanismes intrinsèques de communication de ces systèmes, peut filtrer les conflits d’adressage de communication et les conflits de noms semblables dans des systèmes employant le service de noms, sans gestion et services supplémentaires, et peut implémenter l’interconnexion de systèmes en utilisant les mécanismes intrinsèques de communication.
PCT/CN2005/000202 2005-02-21 2005-02-21 Système de communication et méthode d’interconnexion de celui-ci WO2006086914A1 (fr)

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PCT/CN2005/000202 WO2006086914A1 (fr) 2005-02-21 2005-02-21 Système de communication et méthode d’interconnexion de celui-ci
CN2005800423522A CN101073232B (zh) 2005-02-21 2005-02-21 一种通讯系统及其互连方法

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PCT/CN2005/000202 WO2006086914A1 (fr) 2005-02-21 2005-02-21 Système de communication et méthode d’interconnexion de celui-ci

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Cited By (2)

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CN102244584A (zh) * 2010-05-14 2011-11-16 中兴通讯股份有限公司 一种m2m平台通信系统和方法
CN113541837A (zh) * 2020-04-14 2021-10-22 华为技术有限公司 参数配置方法、设备及系统

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CN109981436B (zh) * 2019-02-22 2021-08-03 安徽睿极智能科技有限公司 一种基于对等特性的跨域互通系统及方法

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WO2004049658A1 (fr) * 2002-11-25 2004-06-10 Korea Electronics Technology Institute Procede de construction d'une adresse commune et d'une table d'adresse pour le transfert de donnees entre differents protocoles de reseau, et architecture y relative
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CN113541837A (zh) * 2020-04-14 2021-10-22 华为技术有限公司 参数配置方法、设备及系统

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CN101073232A (zh) 2007-11-14

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