WO2010015146A1 - Procédé, système et dispositif de transmission d’un message gtp - Google Patents

Procédé, système et dispositif de transmission d’un message gtp Download PDF

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Publication number
WO2010015146A1
WO2010015146A1 PCT/CN2009/000876 CN2009000876W WO2010015146A1 WO 2010015146 A1 WO2010015146 A1 WO 2010015146A1 CN 2009000876 W CN2009000876 W CN 2009000876W WO 2010015146 A1 WO2010015146 A1 WO 2010015146A1
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WO
WIPO (PCT)
Prior art keywords
gtp
message
sent
indication information
processing node
Prior art date
Application number
PCT/CN2009/000876
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English (en)
Chinese (zh)
Inventor
沈宇希
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大唐移动通信设备有限公司
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Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2010015146A1 publication Critical patent/WO2010015146A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, system, and apparatus for transmitting a message of a General Packet Radio Service (GPRS) packet (GTP, GPRS Tunneling Protocol).
  • GPRS General Packet Radio Service
  • the GTP message is transmitted by using the User Datagram Protocol (UDP), it is necessary to ensure that some types of GTP messages can be successfully transmitted to the target node.
  • the GTP message includes a GTP Request (Request) message and a GTP Notification (Notification) message.
  • the GTP processing node needs to return a corresponding acknowledgement message to the GTP processing node.
  • the Request message is acknowledged by a Response message, and the Notification message is acknowledged by an Acknowledge message.
  • the Command message can be confirmed by a Request message.
  • the structure of the message header of the current GTP message is as shown in FIG. 1.
  • the header of the GTP message includes a sequence number of two bytes, a sequence number of the acknowledgement message and the acknowledged message.
  • the value is consistent, thereby forming an acknowledgment relationship, that is, when the receiving end node receives the request message, the notification message, or the instruction message, the sequence number carried in the returned acknowledgment message and the received request message, notification message, or command message
  • the value of the carried serial number remains the same to indicate the confirmation of the received request message, notification message or command message.
  • the GTP processing node In order to avoid repeated processing and attacks of the message, the GTP processing node considers that the received message is a duplicate message and discards it when it receives a message with the same message type and the same sequence number.
  • the request may be either a response to another GTP message or a GTP request message sent independently, but the current GTP request message.
  • the GTP request message (or notification message) is a GTP message or a GTP request message sent independently. Therefore, the node that sends the GTP command message cannot confirm that the received GTP request message is
  • the acknowledgment message corresponding to the GTP command message sent by itself is also a separate GTP request message sent by the peer GTP processing node, thereby affecting the normal processing of the node receiving the GTP request message. In some cases, the GTP processing node may incorrectly discard the received GTP request message as a duplicate message.
  • the Node B sends a GTP request message R1 with a sequence number (SN for short) of 2 to the node A.
  • the node A sends a GTP command message C with a sequence number of 2 to the node. B.
  • the node B returns the GTP request message R2 with the sequence number 2 as the confirmation message of the instruction message C.
  • the message number of the message R2 and the message R1 is the same, and the serial number is the same. Therefore, node A will consider message R2 to be a repetition of message R1, thereby discarding message R1.
  • the GTP processing node sometimes cannot identify whether the received GTP message is an acknowledgment message for the GTP message sent by itself. Summary of the invention
  • the embodiment of the invention provides a method, a system and a device for transmitting a GTP message, which are used to solve the problem that the GTP processing node in the prior art cannot recognize whether the received GTP message is a confirmation message of a GTP message sent by itself.
  • the source GTP processing node sets indication information in the GTP message to be sent, and the indication information is used by the indication information.
  • the message indicating whether the GTP message to be sent is a GTP message for confirming the GTP processing message sent by the peer GTP processing node;
  • the source GTP processing node sends a GTP message carrying the indication information to the peer GTP processing node.
  • the GTP processing node receives the GTP message, and parses out the indication information, where the indication information is used to indicate whether the received GTP message is used to confirm the GTP message sent by the GTP processing node according to the indication.
  • the information determines whether the GTP message is a message for confirming a GTP message sent by itself.
  • the source GTP processing node sets the indication information in the GTP message to be sent, where the indication information is used to indicate whether the GTP message to be sent is a message for confirming the GTP message sent by the peer GTP processing node;
  • the source GTP processing node sends the GTP message with the indication information to the peer GTP processing node;
  • the peer GTP processing node receives the GTP message sent by the source GTP processing node, and parses the indication information therefrom;
  • the peer GTP processing node determines, according to the indication information, whether the GTP message sent by the source GTP processing node is a message for confirming the GTP message sent by itself.
  • the source GTP processing node is configured to set indication information in the GTP message to be sent, where the indication information is used to indicate whether the GTP message to be sent is a message for confirming the GTP message sent by the peer GTP processing node. And sending the GTP message with the indication information to the peer GTP processing node;
  • a GTP processing apparatus configured to receive a GTP message sent by the source GTP processing node, and parse the indication information from the source GTP processing node; and, according to the indication information, determine the source end GTP Whether the GTP message sent by the management node is a message for confirming the GTP message sent by itself.
  • a GTP processing apparatus provided by an embodiment of the present invention includes:
  • the indication information adding unit is configured to set, in the GTP message to be sent, the indication information, where the indication information is used to indicate whether the GTP message to be sent is a message for confirming the GTP message sent by the peer GTP processing node;
  • a sending unit configured to send the GTP message carrying the indication information to the peer GTP processing node.
  • the indication information parsing unit is configured to receive the GTP message sent by the peer GTP processing node, and parse the indication information from the received GTP message, where the indication information is used to indicate whether the GTP message is a GTP message for sending to the GTP message. Confirmation message;
  • a determining unit configured to determine, by the indication information, whether the GTP message sent by the peer GTP processing node is a message for confirming a GTP message sent by itself.
  • the source GTP processing node sets the indication information in the GTP message to be sent, where the indication information is used to indicate whether the GTP message to be sent is a GTP message sent by the peer GTP processing node. And the source GTP processing node sends the GTP message carrying the indication information to the peer GTP processing node, so as to ensure that the GTP processing node can determine the GTP for any GTP message received. Whether the message is an acknowledgment message of the GTP message sent by itself, so that the received GTP message is correctly processed.
  • FIG. 1 is a schematic structural diagram of an existing GTP message header
  • FIG. 3 is a schematic flowchart of a method for transmitting a GTP message according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a message header of a GTP message according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a GTP processing apparatus according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a GTP processing apparatus according to an embodiment of the present invention.
  • the embodiment of the invention provides a method, a system and a device for transmitting a GTP message, which are used to solve the problem that the GTP processing node in the prior art cannot recognize whether the received GTP message is a confirmation message of a GTP message sent by itself.
  • a method for transmitting a GTP message includes:
  • the source GTP processing node sets the indication information in the GTP message to be sent, where the indication information is used to indicate whether the GTP message to be sent is a message for confirming the GTP message sent by the peer GTP processing node.
  • the source GTP processing node sends the GTP message carrying the indication information to the peer GTP processing node.
  • the peer GTP processing node receives the GTP message sent by the source GTP processing node, and parses the indication information therefrom.
  • the indication information is set in a message header of the GTP message to be sent, the peer GTP processing node decodes the received GTP message, and reads the GTP according to the message header definition of the GTP message.
  • the indication in the message header of the message is set in a message header of the GTP message to be sent, the peer GTP processing node decodes the received GTP message, and reads the GTP according to the message header definition of the GTP message.
  • the indication in the message header of the message is set in a message header of the GTP message to be sent, the peer GTP processing node decodes the received GTP message, and reads the GTP according to the message header definition of the GTP message.
  • the peer GTP processing node determines, according to the indication information read in step S303, whether the received GTP message is a message for confirming the GTP message sent by itself.
  • the following description of the present invention is directed to indicating whether the GTP message to be sent is a message for confirming a GTP message sent by a peer GTP processing node.
  • the indication information is set in a message header of a GTP message to be sent.
  • it may also be set in the message body or the extended message header of the GTP message, but since the length of the message header is relatively fixed and the unpacking is relatively fast, setting the indication message in the message header can determine the message response relationship more quickly and effectively, thereby Perform subsequent operations such as stop message retransmission timer to make GTP message processing more efficient.
  • the embodiment of the present invention can message in the GTP message.
  • the embodiment of the present invention may further carry the indication information by the sequence number in the message header of the GTP message to be sent.
  • the step of setting the indication information in the GTP message to be sent by the GTP processing node includes:
  • the GTP processing node encodes the sequence number in the header of the GTP message to be sent, and generates a response information part and a matching part respectively, where the response information part includes indication information; the matching part includes identifier for identifying another GTP
  • the message has matching information for the response relationship.
  • GTP message to be sent The message type of M is a request message, message M is an acknowledgement message of another GTP message N, and the message type of message N is an instruction message.
  • the value of the response information part of the message N is set to 0, indicating that the message is not a response of any message.
  • the value of the generated response information part is 1 to indicate that the message M is The acknowledgement message of another message (ie, message N); the matching part of message N is generated by its sending node, for example, it is set to 11, then the value of the matching part of message M must be in the sequence number in the message header of message N.
  • the matching part has the same value and is also set to 11 to indicate that the message N is the confirmation message of the message M.
  • sequence numbers of different GTP messages of the same message type are different from each other, that is, the sequence numbers of different GTP messages of different message types may be the same.
  • the sequence number in the GTP message to be sent may be set as the first parameter value; when the GTP message to be sent is another GTP message When the message is confirmed, the sequence number in the GTP message to be sent may be set as the second parameter value.
  • the first parameter value is set to an odd number, and the second parameter value is an even number; or, the first parameter value is set to an even number, and the second parameter value is an odd number.
  • you can set the acknowledgment message sequence number the originating message sequence number -1.
  • the sequence number of an indication message (originating message) is set to 21, the corresponding sequence number of the request message confirming the indication message may be 20, and the sequence number of the response message of the request message is also 20.
  • setting a highest bit of the first parameter value to 0, and a highest bit of the second parameter value is 1; or, setting a highest bit of the first parameter value to 1, and the second parameter value The highest bit is 0.
  • the sequence number of an indication information originating message
  • 0110 0011 1100 1111 binary representation
  • the corresponding sequence number of the request message confirming the indication message may be 1110 0011 1100 1111
  • the request message The serial number of the response message is also 1110 0011 1100 1111.
  • the sequence number in the GTP message to be sent may be set to a third parameter value; when the GTP message to be sent is a downlink originating In the case of a message (non-confirmation message), the sequence number in the GTP message to be sent may be set to a fourth parameter value.
  • the third parameter value is an odd number, and the fourth parameter value is an even number; or, the third parameter value is an even number, and the fourth parameter value is an odd number.
  • sequence number of an uplink message (originating message)
  • the corresponding sequence number of the request message (downlink response message) confirming the indication message needs to be set to be the same as the uplink message because the uplink request is answered.
  • the serial number that is, 21, the serial number of the response message of this request message is also 21.
  • the sequence number of the downlink request message (originating message) is set to an even number, such as 22.
  • the embodiment of the present invention may further set indication information in the 11th byte and/or the 12th byte (reserved byte) in the message header of the GTP message, and the indication information may be one
  • the identifier of the bit may also be the complete sequence number of the confirmed GTP message.
  • a GTP message transmission system includes: a source GTP processing node 501, configured to set indication information in a GTP message to be sent, where the indication information is used to indicate the to-be-sent Whether the GTP message is used to process the node to the peer GTP
  • the GTP message sent by the 502 is acknowledged; and the GTP message set with the indication information is sent to the peer GTP processing node 502.
  • the peer GTP processing node 502 is configured to receive the GTP message sent by the source GTP processing node 501, and parse the indication information therefrom; and determine, according to the indication information, the source GTP processing node 501 sends the Whether the GTP message is a message for confirming the GTP message sent by itself.
  • a GTP processing apparatus provided by an embodiment of the present invention includes:
  • the indication information adding unit 601 is configured to set the indication information in the GTP message to be sent, where the indication information is used to indicate whether the GTP message to be sent is a message for confirming the GTP message sent by the peer GTP processing node. .
  • the sending unit 602 is configured to send the GTP message carrying the indication information to the peer GTP processing node.
  • the indication information adding unit 601 sets the indication information in a message header of the GTP message to be sent.
  • the indication information adding unit 601 includes:
  • the indication information unit is configured to set a sequence number in a message header of the GTP message to be sent, and generate indication information.
  • the GTP processing device may further include:
  • An identifying unit configured to receive a GTP message sent by the peer GTP processing node, and parse the indication information for indicating whether the GTP message is a message for confirming the GTP message sent by itself, and according to the indication The information determines whether the GTP message sent by the peer GTP processing node is a message for confirming the GTP message sent by itself.
  • a GTP processing apparatus includes:
  • the indication information parsing unit 701 is configured to receive the GTP message sent by the peer GTP processing node, and parse the indication information from the received GTP message, where the indication information is used to indicate whether the GTP message is a GTP for sending to the GTP message. A message confirming the message.
  • the determining unit 702 is configured to determine, according to the indication information, whether the GTP message sent by the peer GTP processing node is a message for confirming a GTP message sent by itself.
  • the indication information adding unit 601, the sending unit 602, the indication information analyzing unit 701, and the determining unit 702 may also be disposed in the same GTP processing node, that is, the GTP processing node may adopt the solution provided by the embodiment of the present invention.
  • the GTP message can be received by using the solution provided by the embodiment of the present invention.
  • the node that sends the GTP message determines whether the received GTP message corresponds to the sent GTP message according to the sequence number of the received GTP message, thereby determining whether to resend the GTP message.
  • the instruction message needs to be confirmed by the request message, and the request message needs to be confirmed by the response message. Therefore, the request message may be an acknowledgment corresponding to an instruction message, or may be a message unrelated to any instruction message. Because the message for a terminal in the network allows parallel processing, the node that sends the instruction message cannot distinguish whether the received message is an independently sent message or a corresponding sent command message according to the information carried in the received message. Confirmation message.
  • the embodiment of the present invention provides that the GTP message carries an indication information, which is used to indicate whether the sent GTP message is an acknowledgment message of another GTP message, thereby avoiding that the node that sends the GTP message in the prior art cannot distinguish the received GTP. Whether the message is an independently sent message or an acknowledgment message corresponding to a GTP message that has been sent by itself, enables the GTP processing node to correctly process the received GTP message and decide whether it needs to resend the GTP message that it has sent.
  • the spirit and scope of the invention Thus, it is intended that the present invention cover the modifications and variations of the inventions

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

Abstract

L’invention concerne un procédé, un système et un dispositif de transmission d’un message GTP. Selon l’art antérieur, un nœud de traitement GTP ne pouvait pas déterminer s’il avait ou non envoyé lui-même un message confirmant réception d’un message GTP, l’invention permet de résoudre ce problème. Selon ledit procédé, un message indicateur est placé par un nœud de traitement GTP d’une extrémité d’origine dans un message GTP en attente d’envoi, ledit message indicateur indiquant si ledit message GTP en attente d’envoi est utilisé pour confirmer l’envoi d’un message GTP à un nœud de traitement GTP à l’autre extrémité; le message GTP comportant ledit message indicateur est envoyé audit nœud de traitement GTP de l’autre extrémité par ledit nœud de traitement GTP de l’extrémité d’origine. L’invention permet, dans la transmission de GTP, à un nœud de traitement GTP recevant un message GTP de déterminer si le message GTP reçu est un message de confirmation d’un autre message GTP.
PCT/CN2009/000876 2008-08-04 2009-08-04 Procédé, système et dispositif de transmission d’un message gtp WO2010015146A1 (fr)

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CN200810117722.X 2008-08-04
CN200810117722XA CN101645871B (zh) 2008-08-04 2008-08-04 一种gtp消息的传输方法、系统及装置

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CN113810384B (zh) * 2021-08-25 2023-06-20 上海瓶钵信息科技有限公司 实现一次特性的消息传输方法

Citations (1)

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Publication number Priority date Publication date Assignee Title
US20070213060A1 (en) * 2006-03-07 2007-09-13 Interdigital Technology Corporation Method and apparatus for supporting handoff in an lte gtp based wireless communication system

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US20070213060A1 (en) * 2006-03-07 2007-09-13 Interdigital Technology Corporation Method and apparatus for supporting handoff in an lte gtp based wireless communication system

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WANG TIAN ET AL.: "Analysis and implementation of GTP in GSN", JOURNAL OF CTBU (NAT. SCIEN. EDIT.), vol. 21, no. L, 29 February 2004 (2004-02-29), pages 49 - 53 *
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CN101645871A (zh) 2010-02-10

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