CN110072257B - Method for user intercommunication under MEC - Google Patents
Method for user intercommunication under MEC Download PDFInfo
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- CN110072257B CN110072257B CN201910171739.1A CN201910171739A CN110072257B CN 110072257 B CN110072257 B CN 110072257B CN 201910171739 A CN201910171739 A CN 201910171739A CN 110072257 B CN110072257 B CN 110072257B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/246—Connectivity information discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/26—Connectivity information management, e.g. connectivity discovery or connectivity update for hybrid routing by combining proactive and reactive routing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method for user intercommunication under an MEC, which comprises a step of receiving uplink data by the MEC and a step of receiving downlink data by the MEC; in the step of receiving uplink data by the MEC, the MEC receives the uplink data sent by the base station, and analyzes a target address of the uplink data; in the step of receiving downlink data by the MEC, the MEC has two directions for receiving the downlink data, receives the downlink data sent by the ME APP by the MEC, and analyzes the packet header of the data; and the MEC receives downlink data sent by the EPC, wherein the downlink data is standard GTP data and is directly transferred to the base station. The invention has the beneficial effects that: the method of the invention can directly complete the data exchange and processing in the MEC without processing from an S1 port to an EPC, thereby reducing the pressure of a transmission network, reducing the burden of a core network and greatly shortening the communication delay.
Description
Technical Field
The invention relates to a communication problem of a user under mobile edge computing, belongs to the field of 5G mobile communication, and particularly relates to a user intercommunication method under an MEC.
Background
The essence of MEC (Mobile Edge Computing) is to provide users with IT architecture and cloud Computing based capabilities in a RAN network close to the Mobile users, providing a high-bandwidth, low-latency service processing environment. Due to the sinking of the service plane, the network load is effectively reduced, the quick response of various contents, services and applications in the network is accelerated, and consumers can enjoy uninterrupted high-quality network experience.
An LTE (Long Term Evolution) network has a characteristic that if users in the same base station or different base stations want to communicate, communication data must be exchanged through a PGW (PDN Gateway) of a core network, when an MEC is connected in series to the base station and the core network, communication between a terminal and the terminal is also exchanged by the PGW, and a data route between the terminals is as shown in fig. 1-2.
If communication is needed between terminals below the MEC, data needs to be sent to a base station through an air interface, the base station sends the data to a core network through S1, and the data needs to pass through an S1 interface:
1. pressure must be brought to the transmission network;
EPC needs to deal with many users, and each additional user brings little burden to EPC;
3. the transmission path also causes a long communication delay.
Disclosure of Invention
The invention provides a method for user intercommunication under an MEC, which comprises a step of receiving uplink data by the MEC and a step of receiving downlink data by the MEC;
in the step of receiving uplink data by the MEC, the MEC receives the uplink data sent by the base station, and the MEC analyzes a target address of the uplink data, specifically including:
if the uplink data is sent to the ME APP, the MEC removes a GTP head of the data, the data packet is an IP data packet at the moment, records of basic information of the data are stored and are put into an ME APP routing information table, and finally the data with the GTP head removed are sent to the ME APP;
If the data is sent to the EPC, the packet is directly sent to the EPC;
in the step of receiving downlink data by the MEC, there are two directions for the MEC to receive the downlink data, and the method specifically includes:
the MEC receives downlink data sent by the ME APP, analyzes a packet header of the data, searches a corresponding routing record in a routing information table through packet header information, takes GTP information out of the routing information table record, adds the GTP information to the data packet header to form a GTP message, and injects the GTP message into a GTP tunnel; and the MEC receives downlink data sent by the EPC, wherein the downlink data is standard GTP data and is directly transferred to the base station.
As a further improvement of the present invention, in the step of receiving the upstream data by the MEC, the basic information of the data includes a source address, a destination address, and a TEID.
As a further improvement of the present invention, when the ME APP is deployed to the MEC, the MEC needs to configure the URL of the ME APP, obtain the IP address of the ME APP by analyzing the URL of the ME APP, and record the address of the ME APP for shunting the data packet to this address.
As a further improvement of the invention, the user data intercommunication in the MEC is realized, the MEC needs to learn the packet header information of all online users and records the packet header information into the UE routing information table, the UE routing information table and the ME APP routing information table can be merged, and the UE routing information table can also establish a routing information table independently.
As a further improvement of the present invention, the MEC needs to learn the header information of all online users including IP address, TEID.
As a further improvement of the invention, if the MEC receives the upstream data flow sent by the base station, the MEC strips off the GTP head of the upstream data packet by searching the ME APP routing information table and the UE routing information table if the UE routing information table has corresponding record information, and then the MEC replaces the GTP head taken out from the UE routing information table, and the MEC realizes the data sending internal user.
The invention also discloses a system for user intercommunication under MEC, which comprises: memory, a processor and a computer program stored on the memory, the computer program being configured to carry out the steps of the method as claimed in the claims when invoked by the processor.
The invention also discloses a computer-readable storage medium storing a computer program configured to implement the steps of the method as claimed when invoked by a processor.
The invention has the beneficial effects that: the method of the invention can directly complete the data exchange and processing in the MEC without processing from an S1 port to an EPC, thereby reducing the pressure of a transmission network, reducing the burden of a core network and greatly shortening the communication delay.
Drawings
FIG. 1 is a background diagram of user communications under the same base station of the present invention;
FIG. 2 is a background diagram of user communications under different base stations of the present invention;
FIG. 3 is an architecture diagram of the MEC data flow of the present invention;
fig. 4 is a schematic diagram of user communication under different base stations according to the present invention.
Detailed Description
Abbreviations and key term definitions:
and MEC: mobile Edge computer (Mobile Edge computing)
EPC: evolved Packet Core (Evolved Packet Core network)
TEID: tunnel Endpoint Identifier (GPRS Tunnel Identifier)
ME APP: mobile Edge Application (Mobile Edge Application)
The invention discloses a method for user intercommunication under an MEC, wherein the MEC is connected in series with an S1 port, which means that data from a base station to an EPC all passes through the MEC, the MEC provides edge cloud computing capability and needs to shunt the data to an ME APP, and FIG. 3 is an architecture diagram of data flow.
As can be seen from fig. 3, 1, 2, and 5 are uplink data streams, and 3, 4, and 6 are downlink data streams.
When the ME APP is deployed to the MEC, the MEC needs to configure the URL of the ME APP, and the IP address of the ME APP is obtained by analyzing the URL of the ME APP. The MEC records this ME APP address for shunting packets to this address.
The method for user intercommunication under the MEC comprises a step of receiving uplink data by the MEC and a step of receiving downlink data by the MEC.
In the step of receiving uplink data by the MEC, the MEC receives uplink data 1 sent by the base station, and the MEC analyzes the target address of the uplink data 1, which specifically includes:
if the uplink data 1 is sent to the ME APP, the MEC removes a GTP head of the data, the data packet at the moment is an IP data packet, records of basic information of the data, such as a source address, a destination address, a TEID and the like, are stored and are put into an ME APP routing information table, the table is mainly used for adding a GTP packet during downlink, and finally the data with the GTP head removed is sent to the ME APP, referring to a data flow 5 in the figure;
if the data is addressed to the EPC, the packet is directly addressed to the EPC, data flow 2 in the figure.
In the step of receiving downlink data by the MEC, there are two directions for the MEC to receive the downlink data, and the method specifically includes:
the MEC receives downlink data 6 sent by the ME APP, analyzes the packet header of the data, searches corresponding routing records in a routing information table through the packet header information, takes GTP information out of the routing information table records, adds the GTP information to the data packet header to form a GTP message, and sends the GTP message into a GTP tunnel, wherein the data flow in a reference graph is 4; when ascending: UE finds ME APP through the routing information table; when descending: and the UE is found by the downlink data of the ME APP through the routing information table.
The MEC receives downlink data 3 sent by the EPC, the downlink data being standard GTP data, and directly transfers the downlink data to the base station, referring to data flow 4 in the figure.
The method realizes user data intercommunication in the MEC, the MEC needs to learn the header information of all online users, such as IP addresses, TEIDs and the like, and records the header information into a UE routing information table, mainly used for adding GTP heads during downlink, the UE routing information table and an ME APP routing information table can be merged, and the UE routing information table can also be used for independently establishing a routing information table.
If the MEC receives the upstream data flow sent by the base station, the MEC peels off the GTP head of the upstream data packet and replaces the GTP head taken out from the UE routing information table by looking up the ME APP routing information table and the UE routing information table if the UE routing information table has corresponding recording information, and the MEC injects a new data packet into a GTP tunnel to finish the data sending of internal users at the MEC.
The invention has the beneficial effects that: the method of the invention can directly complete the data exchange and processing in the MEC without processing from an S1 port to an EPC, thereby reducing the pressure of a transmission network, reducing the burden of a core network and greatly shortening the communication delay.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. A method for user intercommunication under MEC is characterized in that the method comprises a step that MEC receives uplink data and a step that MEC receives downlink data;
in the step of receiving uplink data by the MEC, the MEC receives the uplink data sent by the base station, and the MEC analyzes a target address of the uplink data, specifically including:
if the uplink data is sent to the ME APP, the MEC removes a GTP head of the data, the data packet is an IP data packet at the moment, records of basic information of the data are stored and are put into an ME APP routing information table, and finally the data with the GTP head removed are sent to the ME APP;
if the data is sent to the EPC, the packet is directly sent to the EPC;
in the step of receiving downlink data by the MEC, there are two directions for the MEC to receive the downlink data, and the method specifically includes:
the MEC receives downlink data sent by the ME APP, analyzes a packet header of the data, searches a corresponding routing record in a routing information table through packet header information, takes GTP information out of the routing information table record, adds the GTP information to the data packet header to form a GTP message, and injects the GTP message into a GTP tunnel; the MEC receives downlink data sent by the EPC, the downlink data is standard GTP data, and the downlink data is directly transferred to a base station;
ME APP represents mobile edge application, MEC represents mobile edge calculation, EPC represents evolution packet core network;
the method comprises the steps that user data intercommunication inside an MEC is achieved, the MEC needs to learn packet header information of all online users and records the packet header information into a UE routing information table, the UE routing information table and an ME APP routing information table can be combined, and the UE routing information table can also be used for independently establishing a routing information table;
if the MEC receives the upstream data flow sent by the base station, the MEC peels off the GTP head of the upstream data packet and replaces the GTP head taken out from the UE routing information table by looking up the ME APP routing information table and the UE routing information table if the UE routing information table has corresponding recording information, and the MEC injects a new data packet into a GTP tunnel to finish the data sending of internal users at the MEC.
2. The method of claim 1, wherein in the step of the MEC receiving the upstream data, basic information of the data includes a source address, a destination address, and a TEID.
3. The method of claim 1, wherein when the ME APP is deployed to the MEC, the MEC needs to configure a URL of the ME APP, obtain an IP address of the ME APP by parsing the URL of the ME APP, and record the address of the ME APP for shunting the packet to the address.
4. The method of claim 1, wherein the MEC needs to learn header information of all online users including IP address, TEID.
5. A system for user intercommunication under MEC is characterized in that: the method comprises the following steps: memory, a processor and a computer program stored on the memory, the computer program being configured to carry out the steps of the method of any one of claims 1-4 when invoked by the processor.
6. A computer-readable storage medium characterized by: the computer-readable storage medium stores a computer program configured to implement the steps of the method of any one of claims 1-4 when invoked by a processor.
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| CN201910171739.1A CN110072257B (en) | 2019-03-07 | 2019-03-07 | Method for user intercommunication under MEC |
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| CN112446474B (en) | 2019-08-31 | 2022-11-22 | 安徽寒武纪信息科技有限公司 | Chip, multichip system, electronic equipment and data transmission method |
| WO2021036404A1 (en) * | 2019-08-31 | 2021-03-04 | 安徽寒武纪信息科技有限公司 | Data transmission method and related device |
| CN110768991A (en) * | 2019-10-30 | 2020-02-07 | 北京市天元网络技术股份有限公司 | Method for data packet encapsulation |
| CN111030914B (en) * | 2019-12-19 | 2021-08-24 | 腾讯科技（深圳）有限公司 | Data transmission method and data transmission system |
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| WO2017028159A1 (en) * | 2015-08-17 | 2017-02-23 | 华为技术有限公司 | Gtp-u downlink message transmitting method and device |
| CN106488508B (en) * | 2015-08-31 | 2019-11-19 | 大唐移动通信设备有限公司 | A kind of data transmission method, apparatus and system |
| DE112016004118T5 (en) * | 2015-09-11 | 2018-06-21 | Sony Corporation | DEVICE, METHOD AND PROGRAM |
| CN107787017B (en) * | 2016-08-24 | 2019-11-12 | 大唐移动通信设备有限公司 | A kind of self study mode realizes the method locally shunted |
| CN108881439B (en) * | 2018-06-15 | 2020-10-30 | 北京邮电大学 | Mobile edge calculation implementation method and system in Internet of vehicles |
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