WO2011041971A1 - Procédé et système de mise en œuvre permettant la prise en charge de la capacité à pousser activement les messages de données - Google Patents

Procédé et système de mise en œuvre permettant la prise en charge de la capacité à pousser activement les messages de données Download PDF

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Publication number
WO2011041971A1
WO2011041971A1 PCT/CN2010/076897 CN2010076897W WO2011041971A1 WO 2011041971 A1 WO2011041971 A1 WO 2011041971A1 CN 2010076897 W CN2010076897 W CN 2010076897W WO 2011041971 A1 WO2011041971 A1 WO 2011041971A1
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Prior art keywords
data packet
host node
push
forwarding plane
data
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PCT/CN2010/076897
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English (en)
Chinese (zh)
Inventor
沈岷
符涛
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中兴通讯股份有限公司
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Publication of WO2011041971A1 publication Critical patent/WO2011041971A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/55—Push-based network services

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and system for implementing an active push capability for supporting data packets.
  • a large number of service servers are deployed on the existing Internet to provide rich and colorful services for the majority of Internet users.
  • a web server that provides news
  • a game server that provides connected games
  • a search server that provides massive search services, and so on.
  • These services are generally provided by the user to obtain the service actively, that is: the user uses various terminals (PC, personal digital assistant (PDA), smart phone, etc., hereinafter referred to as user terminals) connected to the Internet to actively
  • a specific service server on the Internet establishes a communication connection, sends a specific service request to the service server, and then obtains a service response from the service server, and the service response includes various types of information required by the user.
  • the weather forecast service the user wants the service server to actively push the user to the user after obtaining the latest weather forecast information, without waiting for the user to actively access the service server for acquisition, and waiting for the user's active access may affect the timeliness of the weather forecast information. .
  • the existing Internet does not support the function of pushing the data packet (including the information required by the user) to the user by the service server (hereinafter referred to as the PUSH function, and the data packet actively pushed by the server is simply referred to as the PUSH data packet).
  • the communication on the Internet uses the IP address to identify the transceiver end of the data message.
  • the IP address of the service server can be obtained through the DNS function, but the IP address obtained when the user terminal connects to the Internet is If the user terminal does not actively connect to the service provider, the service provider cannot obtain the IP address of the user terminal of the specific user, and cannot actively send the PUSH data packet to the user terminal. .
  • a compromise solution in the existing Internet technology is: After the user terminal connects to the Internet, it sends a login request to a specific service server, and the service server records the current use of the user terminal. IP address; Once the service server has the information that needs to be actively pushed to the user, the PUSH data message is sent using the recorded user terminal IP address.
  • the disadvantage of this solution is: If the user has many services that need to actively push data packets (provided by different service servers), then the user terminal needs to send login messages to different service servers after connecting to the Internet (which also Involved in authentication and other processes); Once the user accidentally drops the network and reconnects, the IP address changes, you need to re-login; If the service server is abnormal during the user's network connection, and the user terminal IP address information is lost, PUSH cannot be performed. The sending of data messages.
  • the present invention provides an implementation method and system for supporting the active push capability of data packets, and enhances the support for the active push capability of data packets.
  • the present invention provides an implementation method for supporting an active push capability of a data packet, and the method is applied to a system based on an identity identification and a location separation framework, including:
  • the first host node sends the data packet to be sent to the second host node to the mapping forwarding plane, where the data packet carries the identity identifier of the second host node;
  • the mapping forwarding plane After receiving the data packet, the mapping forwarding plane performs a forwarding step, where the forwarding step includes: when the second host node is online, forwarding the data packet to the second host node; when the second host node is offline, The data packet is stored, and after the second host node is notified, the data packet is forwarded to the second host node.
  • the step of the first host node sending the data packet to be sent to the second forwarding node to the mapping forwarding plane may include: the first host node sending a data packet to the first access service node where the first host node is located, where the data packet is in the data packet The identifier of the second host node is included, and the data packet further identifies the data packet as a push data packet; when the first access service node receives the data packet, and determines that the data packet is pushed, the data packet is forwarded.
  • the message-to-map forwarding plane the data packet further identifies the data packet as a push data packet; the method may further include: after the mapping forwarding plane receives the data packet, determining whether the data packet is a push data packet If yes, the forwarding step is performed.
  • the method may further include: the first host node identifies the data packet as a push data packet by: sending by the first host node The data packet is sent to the current data packet as a push data packet by setting the initiator identifier in the data packet to the identity identifier specified in the at least two identity identifiers corresponding to the first host node; or A host node adds an indication field to the data packet, and carries the specified identifier information in the indication field to identify that the current data packet is a push data packet.
  • the method may further include the first access service node identifying the data message as a push data message by: sending the first access service node to the data packet of the mapping forwarding plane to indicate the identity in the mapping forwarding plane
  • the field of the routing address of the location register or the packet forwarding function is set to a specified value, and the current data packet is sent as a push data packet; or, by adding a flag to the data packet sent by the first access service node to the mapping forwarding plane. Bit, the flag is used to carry the specified identification information to identify the current data packet as a push data packet.
  • the first host node When the first host node sends the data packet, it may also carry a status report indication flag.
  • the method may further include: when the data message carries the status report indication flag, the mapping forwarding plane successfully sends the data report to the second host node. After the text, the data packet sent to the first host node has successfully sent the information.
  • the present invention also provides an implementation system for supporting the active push of data packets.
  • the system is a system based on identity identification and location separation framework, including a first host node, a mapping forwarding plane, and a second host node, where:
  • the first host node is configured to send a data packet to be sent to the second host node to the mapping forwarding plane, where the data packet carries the identity identifier of the second host node;
  • the mapping forwarding plane is configured to perform the forwarding step after receiving the data packet, where the forwarding step includes: when the second host node is online, forwarding the data packet to the second host node; when the second host node is offline And storing the data packet, and after the second host node is known to be online, forwarding the data packet to the second host node.
  • the system may further include a first access service node, where the first host node may be configured to send, to the first access service node where it is located, a data message to be pushed to the second host node, where the data packet includes An identity of the second host node, where the data packet further identifies the data packet as a push data packet; the first access service node is configured to receive the data packet, and determine that the data packet is a push data packet, And forwarding the data packet to the mapping forwarding plane, where the data packet further identifies the data packet as a push data packet; and the mapping forwarding plane is further configured to: after receiving the data packet, determine the data Whether the packet is a push data packet. If yes, the forwarding step is performed.
  • the first host node may be configured to identify the data packet as the push data packet by: setting the initiator identifier in the data packet to the identity identifier specified in the identity identifier corresponding to the first host node, and identifying the current identifier
  • the data packet is a push data packet, where the first host node corresponds to at least two identity identifiers; or, by adding an indication field to the data packet, the indicator field carries the specified identifier information, and identifies the current datagram.
  • the text is to push data packets.
  • the first access service node may be further configured to identify the data message as a push data message by: setting a field in the data message indicating a routing address of the identity location register or the packet forwarding function in the mapping forwarding plane to The specified value is used to identify the current data packet as a push data packet. Alternatively, a flag is added to the data packet, and the identifier information is carried in the flag bit to identify the current data packet as a push data packet.
  • the first host node may be further configured to carry a status report indication flag in the data packet; the mapping forwarding plane may be further configured to successfully send the data to the second host node when the data message carries the status report indication flag After the packet is received, the data packet sent to the first host node has been successfully sent.
  • the present invention has the following beneficial effects:
  • the present invention provides an implementation method and system for supporting the active push of data packets, and supports the active push of data packets when the user terminal is offline, and satisfies the characteristics of the user terminal as a mobile node, thereby saving network transmission capability. , reduce the retry of the service server, and enable the user terminal to receive the required data message in time.
  • FIG. 1 is a schematic diagram of a network topology based on an existing identity identification and location separation architecture
  • FIG. 2 is a schematic diagram of a related interface and a data push function based on an identity identification and a location separation architecture according to the present invention
  • FIG. 3 is a schematic diagram of an embodiment of a network improvement architecture used in the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a network improvement architecture used in the present invention.
  • 5 is a schematic diagram of an embodiment of a third network improvement architecture used in the present invention
  • 6 is a schematic diagram of an embodiment of a fourth network improvement architecture for use in the present invention.
  • the IP address in the Transmission Control Protocol/Internet Protocol (Transport Control Protocol/Internet Protocol) protocol has a dual function, which serves as the location identifier of the communication terminal host network interface in the network topology at the network layer, and also serves as the transport layer host network interface. Identity.
  • the TCP/IP protocol did not consider the movement of the communication terminal at the beginning of the design. Once the location of the communication terminal changes, the IP address may change, causing the identity to change.
  • the semantic overload defects of such IP addresses are becoming increasingly apparent. For example, as mentioned above, the IP address of the user terminal of a specific user is variable, and the service server can only implement the PUSH function by grasping the current IP address of the user terminal at any time.
  • the invention provides an idea of identity identification and location separation, and separates the original dual functions of the IP address, and uses different identifiers for the location identifier and the identity identifier.
  • the location identifier still uses the IP address, and the identity identifier is additionally defined.
  • Host ID For the same user terminal, the location identifier may change with the access point location, access time and other factors, but its identity may remain unchanged.
  • the service layer only uses the identity of the communication terminal to establish end-to-end communication, and does not care about the location. The change in identity. In this way, the service server can push the data message to the user terminal as long as it knows the identity of the user terminal of the specific user. How the data message is sent to the correct location of the user terminal is implemented by a specific solution for identity identification and location separation.
  • the invention provides a solution for identity identification and location separation for actively pushing data messages.
  • the core idea of the solution is: Divide the network into the access layer and the core layer, and assign a unique host identity (AID: Access Identifier) to each user (including the service server and user terminal) in the network.
  • AID Access Identifier
  • the identity is unique and remains the same during the move; there are two types of identity in the network: the host identity (AID) and the route identifier (RID: Routing Identifier), where the host identity can only be used at the access layer. , location routing identifier only Can be used at the core layer.
  • the topology diagram of the network architecture proposed by the solution is shown in Figure 1.
  • the network is divided into an access network and a backbone network.
  • the access network is responsible for providing and maintaining host nodes (including user terminals and service servers, which can be divided according to mobility).
  • the fixed node, the nomadic node, the mobile node, the service server is generally a fixed node) to the access service node (ASN), and the backbone network is divided into two logically independent functional planes: the mapping forwarding plane
  • the generalized forwarding plane is mainly responsible for routing data packets sent and received between host nodes accessed through different access networks.
  • the access service node is located at the demarcation point between the backbone network and the access network, and has interfaces with the access network and the backbone network respectively, which are used to allocate RIDs, provide access services, maintain host node connections, and maintain for various types of host nodes. And query the AID-RID mapping relationship of the communication peer, and forward the host node data. There is no overlap between the access network and the backbone network in the topology relationship. In the access network section, the host node uses the AID for addressing.
  • the ILR Identity Location Register
  • PTF Packet Transfer Function
  • the PTF and the ILR share the AID-RID mapping relationship of the user in the network. The two can be located in the same physical entity or in different physical entities.
  • many ILR/PTF devices use DHT algorithm for distributed storage and processing, which has high reliability and strong storage and processing capabilities.
  • the main function of the generalized forwarding plane is to select and forward data packets based on the RID in the data packet.
  • the General Switch Router (GSR) is used to route and forward data packets with the RID as the destination address.
  • Sl and D1 are control signaling and user data interfaces between the host node and the ASN, respectively.
  • S1 is a signaling interface for host node access management
  • D1 is an interface for data forwarding and reception.
  • D3 is the external interface with the generalized forwarding plane.
  • the format of the data packet on the D3 interface is:
  • S4 is a signaling interface between the ASN and the mapping forwarding plane. It is used to query and maintain the AID-RID mapping relationship.
  • D4m is the data forwarding interface between the ASN and the mapping forwarding plane.
  • the format of the data packet on the D4m interface is:
  • the source RID corresponds to the source AID
  • the RIDm is the routing address of the ILR/PTF in the mapping forwarding plane connected to the ASN, and the routing address is configured on each ASN.
  • the user terminal (the host identity is AID1) is connected to the access service node ASN1 after being powered on, and the ASN1 assigns the location route identifier RID1 to the user terminal, initiates a registration process to the ILR in the mapping forwarding plane, and the ILR processes the registration process of the user terminal, and saves the registration.
  • the mapping relationship of AID1-RID1 in the information is referred to herein as an online process, and the state of the user after the connection and registration is completed is online. In the opposite case, the state in which the user terminal does not access any of the service nodes is called an offline state or an offline state.
  • the service server (the host ID is AIDs) is connected to the access service node ASN2.
  • ASN2 allocates the location route identifier RIDs to the service server, and initiates a registration process to the ILR in the mapping forwarding plane.
  • the ILR saves the mapping relationship of AIDs-RIDs in the registration information.
  • the business server is also online.
  • the service server When the service server needs to actively push the data packet to the user terminal (AID1), the service server first encapsulates the data packet, sets the destination address to AID1, and the source address to AIDs, and then sends the data packet to ASN2. After receiving the data packet with the AID1 as the destination address (subject to the D1 interface data packet format), the ASN2 queries the locally cached AID-RID mapping table according to the AID1.
  • the RID1 information (as the destination RID) and the RIDs information (as the source RID) are added to the data packet, and the data packet is converted into the D3 interface packet format, and sent to the generalized forwarding plane for forwarding; if the AID is locally cached If the AID1-RID1 mapping relationship is not found in the -RID mapping table, ASN2 adds RIDm (as the destination RID) and RIDs information (as the source RID) in the data packet header to convert the data packet to the D4m interface packet format. After being sent to the mapping forwarding plane for processing;
  • the mapping forwarding plane After receiving the data packet sent by ASN2, the mapping forwarding plane performs routing according to the destination AID1 in the data packet, and routes the route to the corresponding ILR/PTF node. After the PTF node finds the mapping relationship of the destination AID1-RID1, Replacing the RIDm information with the RID1 information in the data packet and forwarding it to the generalized forwarding plane through the D3 interface;
  • the generalized forwarding plane After receiving the data packet from the ASN2 or the mapping forwarding plane, the generalized forwarding plane uses the destination RID1 in the data packet as the routing identifier, and sends the data packet to the ASN1 where the user terminal is located.
  • the ASN1 After receiving the data packet sent by the generalized forwarding plane, the ASN1 strips the outer RID information (including RID1 and RIDs) and sends it to the user terminal according to the D1 interface data packet format.
  • the above process implements the function that the service server actively pushes data packets to the user terminal.
  • the implementation scheme for supporting the active push of the service server whose user terminal is not online is further explained below.
  • the present invention deploys a PUSH capability server based on the identity and location separation architecture shown in FIG. 2, and the PUSH capability server provides a PUSH capability service for a specific group of users, located at the location of the host node.
  • the PUSH capability server is connected to the ASN3, and provides a PUSH capability service for the user terminal connected to the ASN1 in the figure.
  • the destination address of the data packet is the AID (AIDp) of the PUSH capability server served by the user terminal (AID1 is included in the payload of the data packet or In other fields, the specific format is not specified in the present invention).
  • the PUSH data packet sent by the service server passes through the ASN2, the mapping forwarding plane, and the generalized forwarding plane. Up to PUSH capability server. After receiving the PUSH data packet, the PUSH capability server is responsible for forwarding to the user terminal.
  • the PUSH capability server fails to send the PUSH data packet to the user terminal, and the PUSH capability server stores the PUSH data packet for subsequent retry attempts.
  • the PUSH capability server learns that the user terminal is online, the PUSH data packet is retrieved and sent to the user terminal.
  • the method for the PUSH capability server to know whether the user terminal is online is as follows: After the user terminal is online, the user terminal actively sends an online notification message message (the destination AID is AIDp) to the PUSH capability server that provides the service. At this time, the PUSH capability server may take out the PUSH message that it has stored and has not successfully sent, and then send it to the user terminal again.
  • the PUSH capability server may take out the PUSH message that it has stored and has not successfully sent, and then send it to the user terminal again.
  • each user terminal has only one corresponding PUSH capability server, and both the user terminal and the service server know the AIDp of the PUSH capability server.
  • Possible solutions include:
  • the AIDp of the PUSH capability server can be derived from the AID of the user terminal according to a preset rule; for example, if the AID1 is a numeric string, the last several positions of the AID1 are all 0s, as the AIDp of the PUSH capability server (this method) A small amount of AID value space is occupied. If AID1 is a URL (such as userl@groupl.domainl), you can set the AIDp of the PUSH capability server to pushserver@group 1. domain 1.
  • the user terminal selects a PUSH capability server by itself and provides the AIDp of the PUSH capability server to the service server in advance. For example, when the user terminal customizes the weather forecast information to the service server, in addition to providing its own AID, it also provides the AIDp of the PUSH capability server of its choice for the service server to record.
  • the system configures its corresponding PUSH capability server at the user terminal, and configures the PUSH capability server corresponding to the user terminal at the service server.
  • the AID of the PUSH capability server is configured at both the user terminal and the service server.
  • Scenario 2 In the identity and location separation architecture shown in Figure 2, when the host node goes online, it initiates a registration process to the ILR in the mapping forwarding plane. When the host node goes offline, it also initiates a logout process to the ILR in the mapping forwarding plane. Therefore, the ILR in the mapping forwarding plane has an online or offline real-time status of the host node.
  • the present invention expands the function of the mapping forwarding plane on the basis of the identity identification and the location separation architecture shown in FIG. 2, and supports the subscription of the online status of the user terminal, as follows:
  • the service server sends the ASN2 to the ASN2 through the S1 interface.
  • a user status subscription message (including the AID of the specific user terminal).
  • the ASN2 forwards the message to the mapping forwarding plane through the S4 interface.
  • the ILR in the mapping forwarding plane (that is, the ILR registered by the user terminal) is at the user terminal.
  • a status change notification message is sent to the service server via the S4 interface through the ASN2, and the notification message carries the current online or offline of the user terminal. status information.
  • the ILR may also return a response message to the service server, where the response message carries the current online or offline status information of the user terminal, and when the status of the subsequent user terminal changes, the ILR sends a status change notification message. Give the business server.
  • the service server can determine whether or not to actively push the data packet to the user according to the user status, including:
  • the service server needs to push the data message to the user terminal, the status of the user terminal is determined. If the user is in the online state, the data is pushed to the user terminal. If the user is offline, the service server does not perform the service to the user terminal. The data message is pushed, and the data message is saved. After the user terminal is notified that the user terminal is online, the data message is pushed to the user terminal.
  • the specific format of the user status subscription message and the user status change notification message of the S1 interface and the S4 interface used in the present invention is not specifically defined in the present invention.
  • This solution does not need to deploy a PUSH capability server on the network.
  • the service server can grasp the online or offline status of the user terminal.
  • the present invention expands the function of mapping the forwarding plane on the basis of the identity identification and location separation architecture shown in FIG. 2, and supports subscription of the online status of the user terminal; PUSH capability server.
  • the PUSH capability server is connected to the ASN3, and the specific process is as follows: First, the same procedure as the invention solution 1 is used, and the service server sets the purpose of the data packet when the data packet needs to be actively pushed to the user terminal (AID1). The AID (AIDp) of the PUSH capability server served by the user terminal is sent to the PUSH capability server. After failing to forward the PUSH data packet to the user terminal, the PUSH capability server stores the data packet for subsequent retry transmission.
  • the PUSH capability server learns that the user terminal is online, the PUSH data packet is retrieved and sent to the user terminal.
  • the method for the PUSH capability server to know whether the user terminal is online is:
  • the PUSH capability server stores the PUSH data packet, and sends a user status subscription message (including the AID1 of the user terminal) to the ASN3 through the S1 interface. After receiving the message, the ASN3 forwards the message to the mapping forwarding plane through the S4 interface.
  • the ILR (that is, the ILR registered by the user terminal) will be sent to the PUSH capability server via the A43 through the S4 interface when the online status of the user terminal changes (eg, from online to offline, or from offline to online). Status change notification message.
  • the solution does not require the user terminal to have a unique PUSH capability server, and does not require the user terminal to actively send an online notification message to the PUSH capability server after the user terminal goes online.
  • this solution only needs the PUSH capability server to support the user's online status subscription, no need for the service server to support this function, and also reduces the subscription volume and notification message traffic of the mapping forwarding plane.
  • the present invention expands the function of the mapping forwarding plane based on the identity identification and location separation architecture of FIG. 2, and integrates the storage retry function of the PUSH capability server.
  • the specific description is as follows:
  • the logical function entity of the PUSH capability server is added to the mapping forwarding plane.
  • the PUSH data packet sent to the offline user terminal can be temporarily stored and sent after the user terminal is online.
  • the PUSH capability server and the ILR share the online or offline status information of the user in the network.
  • the PUSH capability server and the PTF and the ILR may be located in the same physical entity or in different physical entities.
  • Step 601 The service server sends the data packet that is to be actively pushed to the user terminal (AID1) to the ASN2 through the D1 interface, where the data packet carries the identity identifier AID1 of the user terminal, and carries a corresponding flag to identify that the data packet is
  • the PUSH data packet the method for carrying the flag of the D1 interface is as follows;
  • Step 602 after receiving the data packet, the ASN2 recognizes that the data packet is a PUSH data packet, and then forwards the data packet to the mapping forwarding plane through the D4m interface. , the corresponding flag is carried, and the data packet is a PUSH data packet, and the method for carrying the D4m interface is as follows;
  • Step 603 After receiving the data packet, the mapping forwarding plane identifies that the PUSH data packet is a PUSH data packet, and then queries the online or offline state information of the user terminal according to the AID1 carried in the data packet, according to the online terminal of the user terminal or The offline status information is used to push data packets to the user terminal, including:
  • the mapping relationship of AID1-RID1 is detected, and the RIDm information is replaced by the RID1 information in the PUSH data packet and forwarded to the generalized forwarding plane through the D3 interface, and finally arrived by the ASN1 connected to the user terminal.
  • the mapping forwarding plane temporarily stores the PUSH data file, and after the user terminal is notified that the user terminal is online, the data packet is forwarded to the user terminal according to the foregoing steps, that is, the mapping relationship of AID1-RID1 is detected.
  • the RIDm information is replaced by the RID1 information and forwarded to the generalized forwarding plane through the D3 interface, and finally reaches the user terminal through the ASN1 connected by the user terminal.
  • mapping forwarding plane must identify which data packets need to be stored and subsequently retransmitted when they cannot be sent (retransmitted when the user goes online).
  • a feasible solution is: When the ASN2 of the service server forwards the data packet to the mapping forwarding plane via the D4m interface, it carries the indication that the data packet is a PUSH data packet.
  • D4m is the data forwarding interface between the ASN and the mapping forwarding plane.
  • the format of the data packet on the D4m interface is:
  • the source RID is corresponding to the source AID, and the RIDm is in the mapping forwarding plane connected to the ASN.
  • the routing address of the ILR/PTF which is configured on each ASN.
  • the invention proposes:
  • a different RIDm may be used to identify whether the data packet is a PUSH data packet.
  • the value of the RIDm field is set to a specified value, the current data packet is identified as a PUSH data packet.
  • the data packet format of the D4m interface can also be expanded to add some flag bits, for example:
  • the flag bit it can be set whether the data packet is a PUSH data packet, and the flag bit carries the specified identifier information to identify the current data packet as a PUSH data packet; other flag bits can be used for expansion of other functions in the future. .
  • the service server identifies which data packets are PUSH data packets.
  • the following methods can be used:
  • the service server corresponds to at least two AIDs; the service server sets the initiator identifier in the data packet to the identity identifier specified in the corresponding identity identifier, and identifies the data packet as a PUSH data packet; For the text and non-PUSH data packets, the service server uses different AIDs as the initiator identifiers in the data packets. For example, for non-PUSH data messages, use AIDs1; for PUSH data messages, use AIDs2; in ASN2 Configured so that ASN2 knows that the data packet when the initiator ID is AIDs2 is a PUSH data packet.
  • the format of the data packet of the existing D1 interface is as follows:
  • AIDx is a special AID value, which can be the AID of the data message initiator, or it can be composed of some flag bits. These flags can be used to carry some special information, for example, carry the specified identification information, and indicate the datagram.
  • the text is a PUSH data message.
  • AIDy is a special AID value used to indicate that the ASN performs special processing. This special processing can be:
  • the ASN anonymizes the data packet, that is, the real AID of the data packet initiator is hidden in the data packet forwarded by the ASN.
  • AIDy can be a special value agreed upon in the network, or it can be a specific value configured on the host node and the ASN to which it is connected. Different AIDy values can be used to indicate different special processing; the same AIDy can be used, and AIDx value information can be used to distinguish different special processing.
  • the service server When the service server needs special processing by ASN2, it will add AIDx and AIDy to the normal data packet to form the new data format as described above.
  • ASN2 After receiving this data message, ASN2 can recognize that it is a message that requires ASN2 to perform special processing according to AIDy. After performing special processing, ASN2 will strip the AIDx and AIDy fields of the data packet and perform normal processing. For example, the RID information is added and then forwarded to the generalized forwarding plane or the mapping forwarding plane.
  • Solution 4 does not need to separately deploy the PUSH capability server, but adds corresponding functions in the mapping forwarding plane. On the one hand, it can fully share the online or offline status information of the users owned by the ILR, and on the other hand, can use the mapping forwarding plane to distribute the ILR/PTF in the plane.
  • the networking architecture (using the DHT algorithm) provides reliable data packet storage and processing capabilities, as well as extremely large PUSH data packet storage capacity.
  • the solution does not require the service server to support the user's online or offline subscription, and does not need to send PUSH data packets to retry.
  • the PUSH message will be served by the PUSH capability server (schemes 1, 3).
  • the mapping forwarding plane (Scenario 4) is responsible for storing and transmitting, and the service server does not know whether the PUSH message finally arrives at the user terminal. If the service server wants to know whether the PUSH packet is successfully sent to the user terminal, the service server may carry a status report indication flag when the service server sends the PUSH data packet; when the data message carries the status report indication flag, the PUSH capability server or mapping After the PUSH data packet is successfully sent to the user, the forwarding plane sends a special data packet to the service server, which carries the information that the PUSH data packet has been successfully sent.
  • the specific format of the special data message is not specifically defined in the present invention.
  • the status report indication flag as described above may be carried by the flag bit of the D4m interface extension message described above, and the AIDx or AIDy of the D1 interface extension.
  • the present invention also provides an implementation system for supporting data message active push capability, which is a system based on identity identification and location separation framework, including a first host node, a first access service node, a mapping forwarding plane, and a second host. Node, where:
  • the first host node is configured to send a data packet to be sent to the second host node to the mapping forwarding plane, where the data packet carries the identity identifier of the second host node;
  • the mapping forwarding plane is configured to perform the forwarding step after receiving the data packet, including: when the second host node is online, forwarding the data packet to the second host node; when the second host node is offline, storing the The data packet is forwarded to the second host node after the second host node is notified that the data is sent to the second host node.
  • the first host node is configured to send a data packet to the first access service node where the data is located, where the data packet includes an identity identifier of the second host node, and the data packet further identifies the data packet.
  • the text is a push data message
  • the first access service node is configured to: after receiving the data packet, determine that the data packet is a push data packet, and forward the data packet to a mapping forwarding plane, where the data packet further identifies the data packet
  • the data packet is a push data message
  • the mapping forwarding plane is further configured to: after receiving the data packet, determine whether the data packet is a push data packet, and if yes, perform the forwarding step.
  • the first host node identifies the current data packet as a push data packet by setting the initiator identifier in the data packet to the identity identifier specified in the corresponding identity identifier, where The first host node corresponds to at least two identity identifiers; or the first host node adds an indication field to the data packet, and carries the specified identifier information in the indication field to identify that the current data packet is pushed. Data message.
  • the first access service node sets the field in the data packet to indicate the routing address of the identity location register or the packet forwarding function in the mapping forwarding plane to a specified value, and identifies the current data packet as the push data. Or a flag is added to the data packet, and the identifier is carried in the identifier to identify the current data packet as a push data packet.
  • the first host node is further configured to: carry a status report indication flag in the data packet; the mapping forwarding plane is configured to successfully send the status report indicator when the data message carries the status report indication flag After the second host node sends the data packet, the data message sent to the first host node is successfully sent.
  • the user terminal and the service server have equal status in the network architecture, and are all located in the host node of the access network, and there is no difference in the processes of accessing, registering, and transmitting and receiving data messages. Therefore, the architecture and the process of the present invention are not only applicable to the service server actively pushing data packets to the user terminal, but also applicable to the user terminal pushing data packets to the service server, or data packets between the service servers and the user terminals. Push.
  • the method and system of the present invention are used to reduce PUSH data packets that fail to transmit, thereby saving network transmission capability; reducing the number of retry attempts of data packet pushes, and improving the performance of the service server; The required data packets enhance the user experience.
  • the implementation method and system of the present invention support the active push capability of data packets when the user terminal is offline, satisfy the characteristics of the user terminal as a mobile node, save network transmission capability, reduce the retry work of the service server, and enable the user
  • the terminal can receive the required data message in time.

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

Abstract

L'invention se rapporte à un procédé de mise en œuvre permettant la prise en charge de la capacité à pousser activement les messages de données. Ce procédé est appliqué à un système basé sur une architecture de séparation des identifiants d'identité et des emplacements. Selon ce procédé : un premier nœud hôte remet à un plan de transmission de mappage un message de données devant être poussé vers un second nœud hôte, ce message de données contenant l'identifiant d'identité du second nœud hôte; et à la réception du message de données, le plan d'envoi de mappage mène à bien un processus de transmission. Ledit processus de transmission se déroule de la manière suivante : lorsque le second nœud hôte est en ligne, le message de données lui est transmis; lorsque le second nœud hôte est hors ligne, le paquet de données est stocké, et dès que le plan d'envoi de mappage apprend que le second nœud hôte est en ligne, le message de données est transmis au second nœud hôte. La présente invention permet d'économiser la capacité de transmission du réseau et de limiter le nombre d'essais des serveurs de service, et elle permet également aux terminaux utilisateur de recevoir à temps les messages de données dont ils ont besoin.
PCT/CN2010/076897 2009-10-10 2010-09-14 Procédé et système de mise en œuvre permettant la prise en charge de la capacité à pousser activement les messages de données WO2011041971A1 (fr)

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CN104579912B (zh) * 2013-10-29 2020-04-07 深圳市腾讯计算机系统有限公司 数据推送的方法及装置
CN106547746B (zh) * 2015-09-16 2021-03-30 北京国双科技有限公司 数据发送的方法及装置

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