CN110768991A - Method for data packet encapsulation - Google Patents

Method for data packet encapsulation Download PDF

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Publication number
CN110768991A
CN110768991A CN201911041129.6A CN201911041129A CN110768991A CN 110768991 A CN110768991 A CN 110768991A CN 201911041129 A CN201911041129 A CN 201911041129A CN 110768991 A CN110768991 A CN 110768991A
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CN
China
Prior art keywords
header
data
mec
gtp
user equipment
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Legal status (The legal status 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 status listed.)
Pending
Application number
CN201911041129.6A
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Chinese (zh)
Inventor
王亚鹏
刘涛
高娴
武帅
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Beijing MetarNet Technologies Co Ltd
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Beijing MetarNet Technologies Co Ltd
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Priority to CN201911041129.6A priority Critical patent/CN110768991A/en
Publication of CN110768991A publication Critical patent/CN110768991A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present application relates to a method for data packet encapsulation. In particular, the present application relates to a method of communication, comprising: transmitting data to a base station by user equipment, wherein the data comprises an Ethernet (Eth) header, a Virtual Local Area Network (VLAN), an Internet Protocol (IP) header, a User Datagram Protocol (UDP) header and a General Packet Radio Service (GPRS) tunneling protocol (GTP) header; removing, by a mobile edge computing MEC gateway, said VLAN, said IP header, said UDP header and said GTP header included in said data and generating data including said Eth header recognizable by a mobile edge computing application APP; and sending the data comprising the Eth header to the moving edge computing APP.

Description

Method for data packet encapsulation
Technical Field
The present invention relates to the field of Mobile communications, and in particular, to an Internet Protocol (IP) data encapsulation method for Mobile Edge Computing (MEC) based on a General Packet Radio Service (GPRS) tunneling Protocol (GTP).
Background
The mobile edge computing mainly introduces service platform function in the mobile base station, so that service application can be deployed at the edge of the mobile network. The mobile edge application is instantiated on the virtualization infrastructure of the mobile edge host based on a configuration or request verified by mobile edge management.
Therefore, when a User Equipment (UE) requests to use an Application (APP) in the MEC platform, communication between the UE and the MEC APP needs to be established, and a method capable of realizing mutual communication between the UE and the MEC APP is needed.
Disclosure of Invention
One embodiment of the present application discloses: a method of communication, comprising: transmitting data to a base station by user equipment, wherein the data comprises an Ethernet (Eth) header, a Virtual Local Area Network (VLAN), an Internet Protocol (IP) header, a User Datagram Protocol (UDP) header and a General Packet Radio Service (GPRS) tunneling protocol (GTP) header; removing, by a mobile edge computing MEC gateway, said VLAN, said IP header, said UDP header and said GTP header included in said data and generating data including said Eth header recognizable by a mobile edge computing application APP; sending the data comprising the Eth header to the moving edge computing APP.
Another embodiment of the present application discloses: a method of communication, comprising: the method comprises the steps that a mobile edge computing Application (APP) sends an Internet Protocol (IP) data packet to be sent to user equipment to a Mobile Edge Computing (MEC) gateway; based on the IP address of the user equipment in the IP data packet, the MEC gateway inquires a Tunnel Endpoint Identifier (TEID), a base station IP address and an Ethernet (Eth) number corresponding to the IP address of the user equipment, and forms a General Packet Radio Service (GPRS) tunnel transmission protocol (GTP) head; and generating a GTP tunnel data packet which can be identified by the user equipment by the MEC gateway and sending the GTP tunnel data packet to the user equipment.
Drawings
Fig. 1 illustrates a system of a GTP tunnel-based IP data packet encapsulation method using MEC according to the present application.
Detailed Description
In order to solve the technical problem, the application provides an encapsulation method of the GTP tunnel-based IP packet for mobile edge computing, where the encapsulation method interconverts the data packet originally based on the GTP tunnel of the UE and the IP packet, and realizes mutual communication between the UE and the APP in the MEC platform. According to the application, the intercommunication between the mobile communication terminal UE and the mobile edge computing APP is limited, the safety of data transmission is improved, privacy is protected, and APP deployment on the MEC edge side can be realized.
GTP, which is an abbreviation of GPRS Tunnel Protocol, i.e., GPRS tunneling Protocol, is a set of IP-based higher layer protocols, located above TCP/IP and UDP/IP protocols, and is mainly used for supporting a General Packet Radio Service (GPRS) communication Protocol in a mobile network. There are three separate protocols for GTP, GTP-C, GTP-U and GTP. In the current 5G mobile network, under a network architecture in which a control plane is separated from a user plane, a data plane of the UE sends data packets by using a GTP-U based protocol.
An MEC APP may be carried on a Mobile edge computing platform (MEP), and the MEC APP uses IP-based data packets.
When the UE requests to use the MEC APP, the UE and the MEC APP cannot directly perform data parsing and communication because they use two packets with different formats.
The application realizes the mutual communication between the UE and the MEC APP. From the perspective of MEC APP deployment, the GTP tunnel of the UE and the IP data packet format of the mobile MEC APP are considered comprehensively, an IP data packet encapsulation method based on the GTP tunnel for the MEC is provided, mutual conversion of the GTP tunnel and the IP data packet is achieved, and APP deployment on the edge side of the MEC is also achieved.
Specifically, the GTP tunnel-based IP data packet encapsulation method for mobile edge computing comprises data packet encapsulation and two-part content realization.
In the application, the MEC gateway performs packet encapsulation operation, and the encapsulation operation enables the UE and the MEC APP to identify the packet sent by the other party, so as to establish communication between the UE and the MEC APP.
Fig. 1 illustrates a system of a GTP tunnel-based IP data packet encapsulation method using MEC according to the present application.
The data plane of the UE transmitted to the core network through the Base Station (BS) comprises a data packet format based on a GTP-U protocol, wherein the data packet format comprises the following steps: ethernet header (EthHeader), Virtual Local Area Network (VLAN), Internet Protocol (IP) header (IPHeader), User Datagram Protocol (UDP) header (UDPHeader), GTP header (GTPHeader), source IP address (ScrIP), and destination IP address (DstIP). The IP packet format used by the MEC APP includes: an Eth header (EthHeader), a source IP address (ScrIP), and/or a destination IP address (DstIP).
After the BS receives the data from the UE, the BS transmits the data to the MEC gateway, which performs the conversion of the packet format. In the MEC gateway, removing all GTP tunnel correlation heads sent by the UE, recombining an Eth head data packet which can be identified by the MEC APP, and sending the data packet to the MEC APP. Correspondingly, the data packets sent by the MEC APP to the UE are reassembled into GTP data packets in the MEC gateway, so that the UE can identify the data packets, and thus, communication between the UE and the MEC APP is established.
As can be seen, there are two types of data operations that the MEC gateway needs to perform: firstly, converting uplink data from UE into data recognizable by MEC APP. Specifically, first the UE initiates a request message, for example: the method comprises the steps of obtaining an INITIAL CONTEXT setup request message, analyzing the message by an MEC gateway, storing TEID carried in the message, removing a VLAN (virtual local area network), an IP (Internet protocol) head, a UDP (user Datagram protocol) head and a GTP (GTP) head to form an IP data packet which can be identified by an MEC APP, and forwarding the IP data packet to the MEC APP. And secondly, converting downlink data of the MEC APP into data which can be identified by the UE. Specifically, the MEC APP sends an IP packet to the UE, and when forwarding the IP packet, the MEC gateway queries, according to a target IP address sent by the MEC APP, that is, the IP address of the UE, a GTP header consisting of a TEID corresponding to the IP address of the UE, the IP address of an object of data sent by the UE, and an eth port number sent by the GTPC in the MEC internal storage space, forms a GTP tunnel packet recognizable by the mobile communication terminal UE, and sends the GTP tunnel packet to the UE.
In summary, because the UE uses GTP tunnel-based data packets, the mobile edge computing APP processes IP data packets, and the formats of the two data packets are completely different, so that direct communication cannot be performed. By using the data packet encapsulation method provided by the application, the conversion and encapsulation of the data packet can be realized, the communication between the UE and the MEC platform is established, and the APP deployment of the MEC platform is realized. Meanwhile, data packets of the mobile communication terminal UE do not need to be analyzed through a core network, so that the safety of data is further improved, and the privacy of the data is further protected.
While the embodiments described herein are susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and have been described in detail herein. The invention is not intended to be limited to the particular forms disclosed. The intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A method of communication, comprising:
transmitting data to a base station by user equipment, wherein the data comprises an Ethernet (Eth) header, a Virtual Local Area Network (VLAN), an Internet Protocol (IP) header, a User Datagram Protocol (UDP) header and a General Packet Radio Service (GPRS) tunneling protocol (GTP) header;
removing, by a mobile edge computing MEC gateway, said VLAN, said IP header, said UDP header and said GTP header included in said data and generating data including said Eth header recognizable by a mobile edge computing application APP; and
sending the data comprising the Eth header to the moving edge computing APP.
2. The method of claim 1, wherein the data further comprises an IP address of the user equipment and an IP address of the base station.
3. The method of claim 1, wherein the MEC gateway stores a Tunnel Endpoint Identifier (TEID) in the data.
4. A method of communication, comprising:
the method comprises the steps that a mobile edge computing Application (APP) sends an Internet Protocol (IP) data packet to be sent to user equipment to a Mobile Edge Computing (MEC) gateway;
based on the IP address of the user equipment in the IP data packet, the MEC gateway inquires a Tunnel Endpoint Identifier (TEID), a base station IP address and an Ethernet (Eth) number corresponding to the IP address of the user equipment, and forms a General Packet Radio Service (GPRS) tunnel transmission protocol (GTP) head; and
and generating a GTP tunnel data packet which can be identified by the user equipment by the MEC gateway and sending the GTP tunnel data packet to the user equipment.
5. The method of claim 4, wherein the TEID is stored within the MEC gateway.
CN201911041129.6A 2019-10-30 2019-10-30 Method for data packet encapsulation Pending CN110768991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911041129.6A CN110768991A (en) 2019-10-30 2019-10-30 Method for data packet encapsulation

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Application Number Priority Date Filing Date Title
CN201911041129.6A CN110768991A (en) 2019-10-30 2019-10-30 Method for data packet encapsulation

Publications (1)

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CN110768991A true CN110768991A (en) 2020-02-07

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106131974A (en) * 2016-07-15 2016-11-16 福建三元达网络技术有限公司 LTE private network network-building method based on wireless backhaul and system thereof
CN107846270A (en) * 2016-09-20 2018-03-27 中国移动通信有限公司研究院 Transmit tactics configuring method and device, information transferring method and device
CN110072257A (en) * 2019-03-07 2019-07-30 武汉星耀科技有限公司 A kind of method of user's intercommunication under MEC

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106131974A (en) * 2016-07-15 2016-11-16 福建三元达网络技术有限公司 LTE private network network-building method based on wireless backhaul and system thereof
CN107846270A (en) * 2016-09-20 2018-03-27 中国移动通信有限公司研究院 Transmit tactics configuring method and device, information transferring method and device
CN110072257A (en) * 2019-03-07 2019-07-30 武汉星耀科技有限公司 A kind of method of user's intercommunication under MEC

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
3GPP: ""gs_NGP001v010101p"", 《3GPP》 *

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Application publication date: 20200207