TW202145807A - Mobile edge computing platform and packet offloading method based on mobile edge computing - Google Patents

Mobile edge computing platform and packet offloading method based on mobile edge computing Download PDF

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TW202145807A
TW202145807A TW109116219A TW109116219A TW202145807A TW 202145807 A TW202145807 A TW 202145807A TW 109116219 A TW109116219 A TW 109116219A TW 109116219 A TW109116219 A TW 109116219A TW 202145807 A TW202145807 A TW 202145807A
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packet
network
signaling
network address
user
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TW109116219A
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TWI732552B (en
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張致綱
簡誠儀
李柏翰
鄭凱中
王景玄
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中華電信股份有限公司
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Abstract

A mobile edge computing (MEC) platform and a packet offloading method based on MEC are provided. In the method, an uplink traffic packet from the mobile network is received. An endpoint identification for transmitting user data via tunneling protocol by the user equipment (UE) is obtained from the signaling packet. Whether to forward the uplink traffic packet, which is designed to be transmitted to the core network before, to an internal server is determined according to the endpoint identification and a destination network address of the uplink traffic packet. Accordingly, the efficiency of local offloading can be improved.

Description

行動邊緣運算平台及基於行動邊緣運算的封包卸載方法Mobile edge computing platform and packet offloading method based on mobile edge computing

本發明是有關於一種行動邊緣運算(Mobile Edge Computing,MEC)技術,且特別是有關於一種行動邊緣運算平台及基於行動邊緣運算的封包卸載方法。The present invention relates to a mobile edge computing (MEC) technology, and more particularly, to a mobile edge computing platform and a packet offloading method based on the mobile edge computing.

在行動邊緣運算架構中提供用戶本地卸載功能,可更快速提供行動用戶特訂服務,亦能降低核心網路的負擔。行動邊緣運算通常都是透過判斷封包的來源端網際網路協定(Internet Protocol,IP)位址、目的地IP位址、來源埠(port)、目的埠等多個欄位來確認是否為需要本地卸載之封包。而過多的欄位分析將增加處理封包時間,進而影響效能。Providing the user local offload function in the mobile edge computing architecture can provide mobile user-specific services more quickly, and can also reduce the burden on the core network. Mobile edge computing usually uses multiple fields such as the source Internet Protocol (IP) address, destination IP address, source port (port), and destination port of the packet to confirm whether it needs local Uninstalled package. Excessive field analysis will increase the processing time of the packets, thereby affecting the performance.

有鑑於此,本發明實施例提供一種行動邊緣運算平台及基於行動邊緣運算的封包卸載方法,其查看封包外層資訊即可確認封包是否需要本地卸載,從而提升處理效率。In view of this, embodiments of the present invention provide a mobile edge computing platform and a packet offloading method based on mobile edge computing, which can check the outer layer information of the packet to confirm whether the packet needs to be offloaded locally, thereby improving processing efficiency.

本發明實施例的行動邊緣運算平台包括(但不僅限於)通訊收發器、儲存器及處理器。通訊收發器接收來自行動網路的上行訊務封包。儲存器記錄數個模組。處理器耦接通訊收發器及儲存器,存取並執行儲存器所記錄的那些軟體模組。那些軟體模組包括信令擷取分析模組及本地卸載判斷模組。信令擷取分析模組自信令封包取得用戶設備經由隧道協定(tunneling protocol)傳送用戶資料的端點識別碼,並依據此端點識別碼取得用戶設備的用戶資訊。本地卸載判斷模組依據此端點識別碼及上行訊戶封包的目的地網路位址判斷是否將原先送至核心網路的上行訊務封包轉送至內部伺服器。The mobile edge computing platform of the embodiment of the present invention includes (but is not limited to) a communication transceiver, a storage and a processor. The communication transceiver receives uplink traffic packets from the mobile network. The memory records several modules. The processor is coupled to the communication transceiver and the storage, and accesses and executes those software modules recorded in the storage. Those software modules include a signal capture analysis module and a local offload judgment module. The signaling extraction and analysis module obtains the endpoint identification code of the user equipment that transmits the user data through the tunneling protocol from the signaling packet, and obtains the user information of the user equipment according to the endpoint identification code. The local offload judging module judges whether to forward the upstream traffic packets originally sent to the core network to the internal server according to the endpoint identification code and the destination network address of the upstream traffic packets.

本發明實施例的基於行動邊緣運算的封包卸載方法包括(但不僅限於)下列步驟:接收來自行動網路之上行訊務封包。自信令封包取得用戶設備經由隧道協定傳送用戶資料的端點識別碼。依據此端點識別碼取得用戶設備的用戶資訊。依據端點識別碼及上行訊務封包的目的地網路位址判斷是否將原先送至核心網路的上行訊務封包轉送至內部伺服器。The mobile edge computing-based packet offloading method according to the embodiment of the present invention includes (but is not limited to) the following steps: receiving an uplink traffic packet from a mobile network. Obtain the endpoint identification code of the user equipment for transmitting user data through the tunnel protocol from the signaling packet. Obtain the user information of the user equipment according to the endpoint identifier. According to the endpoint identification code and the destination network address of the upstream traffic packet, it is judged whether to forward the upstream traffic packet originally sent to the core network to the internal server.

基於上述,本發明實施例的行動邊緣運算平台及基於行動邊緣運算的封包卸載方法,檢查封包對應的端點識別碼來取得更多用戶資訊,並進一步結合目的地位址來判斷是否轉送封包到內部網路,以卸載封包至本地。藉此,不僅可減少封包處理時間,更能增加彈性比對條件,從而提升傳輸效率並提升資安防護強度。Based on the above, the mobile edge computing platform and the packet unloading method based on the mobile edge computing of the embodiments of the present invention check the endpoint identification code corresponding to the packet to obtain more user information, and further combine the destination address to determine whether to forward the packet to the internal network to offload packets to the local. In this way, not only the packet processing time can be reduced, but also the flexible comparison conditions can be increased, thereby improving the transmission efficiency and the strength of information security protection.

為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

圖1是依據本發明的一實施例的通訊架構的元件方塊圖。請參照圖1,此通訊架構包括(但不僅限於)行動邊緣運算(MEC)平台100、一台或更多台用戶設備(User Equipment,UE)10、行動網路20、MEC服務的內部伺服器30、核心網路40、及網際網路(Internet)50。FIG. 1 is a block diagram of components of a communication architecture according to an embodiment of the present invention. Please refer to FIG. 1 , the communication architecture includes (but is not limited to) a mobile edge computing (MEC) platform 100 , one or more user equipment (UE) 10 , a mobile network 20 , and an internal server for MEC services 30. The core network 40 and the Internet (Internet) 50.

用戶設備10可以是電腦主機、智慧型手機、平板電腦、穿戴式裝置等可連網設備。The user equipment 10 may be a networkable device such as a computer host, a smart phone, a tablet computer, a wearable device, or the like.

行動網路20可以是通用行動通訊系統地面無線電存取網路(UMTS Terrestrial Radio Access Network,UTRAN)、演進通用地面無線電存取網路(Evolved Universal Terrestrial Radio Access Network,E-UTRAN)等各世代行動網路標準的接取網路。The mobile network 20 may be various generations of mobile phones such as Universal Mobile Telecommunications System Terrestrial Radio Access Network (UMTS Terrestrial Radio Access Network, UTRAN), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), etc. Internet standard access network.

內部伺服器30係指無須經由核心網路40的內部應用服務相關的伺服器。The internal server 30 refers to a server related to the internal application service that does not need to go through the core network 40 .

核心網路40可以是各世代行動網路標準的核心網路或其網路實體(例如,行動性管理實體(mobility management entity;MME)、服務閘道(Serving Gateway,S-GW)、或存取及行動性管理功能(Access and mobility Management Function,AMF)等)。The core network 40 may be a core network of various generations of mobile network standards or a network entity thereof (eg, a mobility management entity (MME), a Serving Gateway (S-GW), or a storage gateway). Access and mobility management function (Access and mobility Management Function, AMF), etc.).

MEC平台100包括(但不僅限於)通訊收發器110、儲存器130及處理器150。MEC平台100可以是介於行動(接取)網路20與核心網路40之間的閘道裝置、路由裝置、主機電腦、伺服器等設備。The MEC platform 100 includes (but is not limited to) a communication transceiver 110 , a storage 130 and a processor 150 . The MEC platform 100 may be a gateway device, a routing device, a host computer, a server and other devices between the mobile (access) network 20 and the core network 40 .

通訊收發器110可以是支援乙太網路(Ethernet)、光纖技術等有線通訊、或支援Wi-Fi、藍芽等無線通訊的網路模組、介面卡、晶片或電路。The communication transceiver 110 may be a network module, interface card, chip or circuit that supports wired communication such as Ethernet and optical fiber technology, or supports wireless communication such as Wi-Fi and Bluetooth.

儲存器130可以是任何型態的固定或可移動隨機存取記憶體(Random Access Memory,RAM)、唯讀記憶體(Read-Only Memory,ROM)、快閃記憶體(Flash Memory)或類似元件或上述元件的組合。儲存器130儲存程式碼、裝置組態、緩衝的或永久的資料、諸如信令擷取分析模組131(包括第一及第二信令擷取分析模組132, 133)、網路名稱系統(DNS)解析模組134、本地卸載條件設定模組135、及本地卸載判斷模組136等軟體模組或程式碼、用戶資訊、訊務封包相關資訊、控制信令、本地卸載條件資訊等資料、資訊及對照表,而各軟體模組之詳細運作待後續實施例說明。The storage 130 may be any type of fixed or removable random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), flash memory (Flash Memory), or similar components or a combination of the above elements. Storage 130 stores code, device configuration, buffered or persistent data, such as signaling capture analysis module 131 (including first and second signaling capture analysis modules 132, 133), net name system (DNS) analysis module 134, local uninstall condition setting module 135, and local uninstall determination module 136 and other software modules or code, user information, information about traffic packets, control signaling, local uninstall condition information, etc. , information and a comparison table, and the detailed operation of each software module will be described in subsequent embodiments.

需說明的是,前述軟體模組可部署於同一硬體平台,且模組間之通訊基於程式化界面。或者,前述軟體模組亦可部署於不同硬體平台,模組間之通訊基於IP基礎之通訊協定。It should be noted that the aforementioned software modules can be deployed on the same hardware platform, and the communication between the modules is based on a programmed interface. Alternatively, the aforementioned software modules can also be deployed on different hardware platforms, and the communication between the modules is based on an IP-based communication protocol.

處理器150耦接通訊收發器110及儲存器130,並可以是CPU、微處理器、微控制器、數位信號處理(Digital Signal Processing,DSP)晶片、場可程式化邏輯閘陣列(Field Programmable Gate Array,FPGA)等可程式化單元或積體電路(Integrated Circuit,IC)。於本實施例中,處理器150用以執行MCE平台100的所有運作,且可存取並執行儲存器130所記錄的那些軟體模組。The processor 150 is coupled to the communication transceiver 110 and the memory 130, and can be a CPU, a microprocessor, a microcontroller, a Digital Signal Processing (DSP) chip, a Field Programmable Gate Array (Field Programmable Gate) Array, FPGA) and other programmable units or integrated circuits (Integrated Circuit, IC). In this embodiment, the processor 150 is used to execute all operations of the MCE platform 100 , and can access and execute those software modules recorded in the storage 130 .

為了方便理解本發明的操作流程,以下將舉諸多實施例詳細說明。下文中,將搭配圖1中通訊架構中各裝置、元件及模組說明本發明實施例所述之方法。本方法的各個流程可依照實施情形而隨之調整,且並不僅限於此。In order to facilitate the understanding of the operation process of the present invention, a number of embodiments will be given below for detailed description. Hereinafter, the method according to the embodiment of the present invention will be described with reference to each device, element and module in the communication architecture shown in FIG. 1 . Each process of the method can be adjusted according to the implementation situation, and is not limited to this.

圖2是依據本發明的一實施例的基於行動邊緣運算的封包卸載方法的流程圖。請參照圖2,處理器150透過通訊收發器110接收來自行動網路20之上行訊務封包(步驟S210)。具體而言,上行訊務封包是任一台用戶設備10經由行動網路20中的基地台傳送的封包,並可能包括用戶設備的10所欲傳送的資料訊務(或稱用戶資料/用戶平面(user-plane)資料)。在一些實施例中,基地台會將用戶設備10的封包封裝成隧道協定(tunneling protocol)(例如,GPRS隧道協定(GTP)或其他相似協定)格式(例如,GTP-U封包),使行動邊緣運算平台100接收到夾帶資料訊務的GTP-U封包。FIG. 2 is a flowchart of a packet offloading method based on mobile edge computing according to an embodiment of the present invention. Referring to FIG. 2, the processor 150 receives the uplink traffic packet from the mobile network 20 through the communication transceiver 110 (step S210). Specifically, the uplink traffic packet is a packet transmitted by any user equipment 10 via the base station in the mobile network 20, and may include the data traffic (or user data/user plane) to be transmitted by the user equipment 10 (user-plane data). In some embodiments, the base station encapsulates the packets of the user equipment 10 into a tunneling protocol (eg, GPRS Tunneling Protocol (GTP) or other similar protocol) format (eg, GTP-U packets), enabling mobile edge The computing platform 100 receives the GTP-U packet carrying the data traffic.

值得注意的是,在未設置行動邊緣運算平台100的情況下,上行訊務封包將經由核心網路40傳送至Internet 50。而本發明實施例將透過設置行動邊緣運算平台100來判斷上行訊務封包是否需要本地卸載(即,轉送至內部伺服器30)。It is worth noting that in the case where the mobile edge computing platform 100 is not provided, the uplink traffic packets will be transmitted to the Internet 50 via the core network 40 . In this embodiment of the present invention, the mobile edge computing platform 100 is configured to determine whether the uplink traffic packets need to be offloaded locally (ie, forwarded to the internal server 30 ).

信令擷取分析模組131可自信令封包取得此用戶設備10經由S1介面傳送用戶資料的端點識別碼(步驟S230)。具體而言,端點識別碼是夾帶於隧道協定相關封包的標頭(header)中並用以區分隧道中的不同連接。例如,GTP-U封包包括隧道端點標識(Tunnel endpoint identifier,TEID)。此外,行動邊緣運算平台100更能進一步依據特定端點識別碼來辨識所屬隧道是屬於哪個用戶設備10。即,可區別用戶設備10。The signaling extraction and analysis module 131 can acquire the endpoint identification code of the user equipment 10 for transmitting the user data via the S1 interface from the signaling packet (step S230 ). Specifically, the endpoint identifier is entrained in the header of the tunnel protocol-related packet and used to distinguish different connections in the tunnel. For example, the GTP-U packet includes a tunnel endpoint identifier (TEID). In addition, the mobile edge computing platform 100 can further identify which user equipment 10 the tunnel belongs to according to the specific endpoint identification code. That is, the user equipment 10 can be distinguished.

接著,信令擷取分析模組131可依據此端點識別碼取得對應用戶設備10的用戶資訊(步驟S250)。具體而言,由於端點識別碼可用於識別用戶設備10,信令擷取分析模組131可進一步自先前儲存的全網用戶資料表中搜尋此用戶設備10對應的用戶資訊。此全網用戶資料表是此電信業者記錄所有用戶設備10的用戶資訊的集合(可能是資料庫、對照表等形式)。而用戶資訊可以是門號、存取點名稱(Access Point Name,APN)、基地台網路位址(即,行動網路20中的基地台的網路位址,且此用戶設備10當前受此基地台服務)、用戶網路位址、或其組合。其中,網路位址例如是IP位址、媒體存取控制(Media Access Control,MAC)位址、或其他網路中的識別碼。此外,有別於現有技術需查找封包中複數個欄位來取得用戶資訊,本發明實施例可基於端點識別碼來查找已記錄的用戶資訊,明顯可提升處理效率。Next, the signaling extraction and analysis module 131 can obtain the user information corresponding to the user equipment 10 according to the endpoint identification code (step S250 ). Specifically, since the endpoint identification code can be used to identify the user equipment 10, the signaling capture analysis module 131 can further search for the user information corresponding to the user equipment 10 from the previously stored user data table of the entire network. The network-wide user data table is a collection of user information recorded by the telecommunications company (may be in the form of a database, a comparison table, etc.) of all user equipments 10 . The user information can be a door number, an access point name (APN), a base station network address (ie, the network address of the base station in the mobile network 20, and the user equipment 10 is currently receiving the base station service), user network address, or a combination thereof. The network address is, for example, an IP address, a media access control (Media Access Control, MAC) address, or an identification code in other networks. In addition, unlike the prior art, which needs to search for multiple fields in the packet to obtain user information, the embodiment of the present invention can search for the recorded user information based on the endpoint identification code, which can obviously improve the processing efficiency.

在一實施例中,信令擷取分析模組131可先行判斷此端點識別碼及其用戶資訊是否符合本地卸載權限。若符合本地卸載權限,則將端點識別碼提供給本地卸載判斷模組136,以供本地卸載判斷模組136判斷是否轉送上行訊務封包。在其他實施例中,本地卸載判斷的所有機制可都在本地卸載判斷模組136進行。需說明的是,本地卸載權限的設定待後續實施例詳述。In one embodiment, the signaling capture analysis module 131 can first determine whether the endpoint identifier and its user information conform to the local uninstall permission. If the local offload permission is met, the endpoint identification code is provided to the local offload determination module 136 for the local offload determination module 136 to determine whether to forward the uplink traffic packet. In other embodiments, all mechanisms of the local uninstall determination may be performed by the local uninstall determination module 136 . It should be noted that, the setting of the local uninstall authority will be described in detail in subsequent embodiments.

另需說明的是,用戶資訊中的內容可視實際需求而自行變更,本發明實施例不加以限制。It should be further noted that, the content in the user information may be changed according to actual needs, which is not limited in the embodiment of the present invention.

接著,本地卸載判斷模組136可依據端點識別碼及上行訊務封包的目的地網路位址判斷是否將原先送至核心網路40的上行訊務封包轉送至內部伺服器30(步驟S270)。具體而言,本地卸載判斷模組136可自本地卸載條件設定模組135取得事先設定(亦可事後修改)的本地卸載條件資訊。此本地卸載條件資訊可記錄可/需本地卸載(即,傳送至內部伺服器30)的網路位址(供目的地網路位址比對)。本地卸載判斷模組136比對上行訊務封包對應的端點識別碼及目的地網路位址是否已記錄在本地卸載條件資訊。若已記錄於本地卸載條件資訊中,則表示上行訊務封包可進行本地卸載,且本地卸載判斷模組136將此上行訊務封包轉送至內部伺服器30。另一方面,若未已記錄於本地卸載條件資訊中,則本地卸載判斷模組136仍將此上行訊務封包送至核心網路40(例如,其中的服務閘道(Serving Gateway,S-GW))。Next, the local offload determination module 136 may determine whether to forward the uplink traffic packet originally sent to the core network 40 to the internal server 30 according to the endpoint identification code and the destination network address of the uplink traffic packet (step S270 ). ). Specifically, the local uninstallation determination module 136 can obtain the local uninstallation condition information set in advance (and also modified afterwards) from the local uninstallation condition setting module 135 . This local offload condition information may record the network addresses (for destination network address comparison) that can/need to be offloaded locally (ie, sent to the internal server 30). The local offload determination module 136 compares whether the endpoint identification code and the destination network address corresponding to the uplink traffic packet have been recorded in the local offload condition information. If it is recorded in the local offload condition information, it means that the uplink traffic packet can be offloaded locally, and the local offload determination module 136 forwards the uplink traffic packet to the internal server 30 . On the other hand, if it has not been recorded in the local offload condition information, the local offload determination module 136 still sends the uplink traffic packet to the core network 40 (for example, the Serving Gateway (S-GW) therein. )).

在一實施例中,網域網路位址對應特定的存活時間。而本地卸載判斷模組136可依據目的地網路位址取得對應的存活時間(相符的網域網路位址的存活時間),並判斷此存活時間是否過期,以確認DNS狀態。若此存活時間尚未過期,則本地卸載判斷模組136可移除上行訊務封包中隧道協定的標頭(甚至更外層的IP標頭),並轉送剩餘封包至內部伺服器30。若已過期,則上行訊務封包可送至核心網路40。In one embodiment, the network domain address corresponds to a specific time-to-live. The local uninstall determination module 136 can obtain the corresponding time-to-live (the time-to-live of the corresponding domain network address) according to the destination network address, and determine whether the time-to-live has expired, so as to confirm the DNS status. If the time-to-live has not expired, the local offload determination module 136 can remove the tunnel protocol header (even the outer IP header) in the upstream traffic packet, and forward the remaining packets to the internal server 30 . If it has expired, the upstream traffic packet can be sent to the core network 40 .

以下依序進一步說明本地卸載條件資訊的建立、信令分析、DNS解析及本地卸載判斷。The establishment of local offload condition information, signaling analysis, DNS resolution, and local offload determination are further described below in sequence.

圖3是依據本發明的一實施例的卸載條件設定的流程圖。請參照圖3,本地卸載條件設定模組135等待設定人員設定用戶權限供裝資訊,設定人員取得用戶授權資料後進入本地卸載條件設定模組135所提供的使用者介面修改用戶權限供裝資訊(含門號、APN、基地台網路位址、網址、目的地網路位址等用戶資訊,並相關於前述本地卸載權限) (步驟S310)。需說明的是,所有欄位並非必填,填寫詳細程度決定條件嚴苛程度。本地卸載條件設定模組135可將門號、APN、基地台網路位址等用戶資訊儲存於本地卸載條件資訊。例如,表(1)是一範例說明本地卸載條件資訊: 表(1) 門號 APN 基地台IP位址 0988654321 CHT1 1.2.3.4 0987653210 CHT2 1.2.4.4 0986543210 AUO 3.2.1.2 本地卸載條件設定模組135可依據新增或刪除的用戶資訊設定本地卸載條件資訊(步驟S320),並進一步將本地卸載條件資訊更新到本地卸載條件設定模組135的本地卸載條件資訊(步驟S330)。FIG. 3 is a flowchart of unloading condition setting according to an embodiment of the present invention. Referring to FIG. 3 , the local uninstall condition setting module 135 waits for the setting staff to set user rights for installation information, and the setting staff obtains the user authorization data and enters the user interface provided by the local uninstall condition setting module 135 to modify the user rights for installation information ( Including user information such as door number, APN, base station network address, website address, destination network address, and related to the aforementioned local uninstallation authority) (step S310). It should be noted that all fields are not required, and the level of detail determines the severity of the conditions. The local uninstall condition setting module 135 can store user information such as door number, APN, and base station network address in the local uninstall condition information. For example, Table (1) is an example illustrating local uninstall condition information: Table (1) door number APN Base station IP address 0988654321 CHT1 1.2.3.4 0987653210 CHT2 1.2.4.4 0986543210 AUO 3.2.1.2 The local uninstall condition setting module 135 may set the local uninstall condition information according to the newly added or deleted user information (step S320 ), and further update the local uninstall condition information to the local uninstall condition information of the local uninstall condition setting module 135 (step S330 ) ).

本地卸載條件設定模組135可依據新增或刪除的網址資訊設定本地卸載條件資訊(步驟S340),並進一步將網址資訊更新至網域名稱系統解析模組134(步驟S350,針對新增特定網址資訊),或對網域名稱系統解析模組134發出刪除指令(步驟S355,針對刪除網址資訊)。網址資訊例如是www.cht.com、www.chtlearn.com等網域名稱。The local uninstall condition setting module 135 can set the local uninstall condition information according to the newly added or deleted website information (step S340 ), and further update the website information to the domain name system analysis module 134 (step S350 , for adding a specific website address) information), or send a deletion instruction to the domain name system analysis module 134 (step S355, for deleting the website information). The website information is, for example, domain names such as www.cht.com, www.chtlearn.com, etc.

本地卸載條件設定模組135可依據新增或刪除的目的地網路位址資訊設定本地卸載條件資訊(步驟S360),並進一步將目的地網路位址資訊更新至本地卸載判斷模組136(步驟S370)。此外,本地卸載條件設定模組135可依據用戶授權資料進行用戶供裝資訊之刪除、新增與修改等操作,更新完成後,行動用戶上網時便可生效。The local uninstall condition setting module 135 can set the local uninstall condition information according to the added or deleted destination network address information (step S360 ), and further update the destination network address information to the local uninstall determination module 136 ( Step S370). In addition, the local uninstall condition setting module 135 can perform operations such as deleting, adding, and modifying the installation information provided by the user according to the user authorization data.

圖4是依據本發明的一實施例的信令擷取分析的流程圖。請參照圖4,信令擷取分析模組131判斷封包類型(步驟S410)。若是接收到來自核心網路40的一筆或更多筆第一信令(以下將以S11介面的GTP-C封包為例,但不以此類型為限)(步驟S421),第一信令擷取分析模組132可自這些第一信令中關於創建會談(create session)的封包(例如,CreateSession Request(要求)及Response(回應)封包)取得對應的門號、存取點名稱、以及用戶網路位址(步驟S424及S425)。接著,第一信令擷取分析模組132還可自這些第一信令中關於修改承載(modify bearer)的封包(例如,ModifyBearer Request及Response封包)取得對應的端點識別碼、門號、存取點名稱、基地台網路位址、以及用戶網路位址,並據以將這些用戶資訊儲存至全網用戶資料表(步驟S426及S427)。例如,表(2)是一範例說明用戶資訊: 表(2) TEID 用戶IP位址 門號 APN 基地台IP位址 789456 10.30.1.2 0988654321 CHT1 1.2.3.4 567831 10.20.1.3 0987653210 CHT2 1.2.4.4 此外,若第一信令擷取分析模組132自這些第一信令中收到關於刪除會談(delete session)的封包(例如,DeleteSession Request及Response封包)(步驟S422),則可自全網用戶資料表中刪除對應用戶資訊(步驟S423)。FIG. 4 is a flowchart of signaling extraction and analysis according to an embodiment of the present invention. Referring to FIG. 4 , the signaling extraction and analysis module 131 determines the packet type (step S410 ). If one or more pieces of first signaling are received from the core network 40 (the GTP-C packet of the S11 interface will be taken as an example, but not limited to this type) (step S421 ), the first signaling is retrieved The retrieval and analysis module 132 can obtain the corresponding door number, access point name, and user from the packets related to create session (eg, CreateSession Request and Response packets) in the first signaling. network address (steps S424 and S425). Next, the first signaling extraction and analysis module 132 can also obtain the corresponding endpoint identification code, gate number, Access point name, base station network address, and user network address, and store the user information in the network-wide user data table accordingly (steps S426 and S427). For example, Table (2) is an example of user information: Table (2) TEID User IP address door number APN Base station IP address 789456 10.30.1.2 0988654321 CHT1 1.2.3.4 567831 10.20.1.3 0987653210 CHT2 1.2.4.4 In addition, if the first signaling extraction and analysis module 132 receives packets related to delete session (eg, DeleteSession Request and Response packets) from the first signaling (step S422 ), it can automatically The corresponding user information is deleted from the user data table (step S423).

另一方面,而若是接收到來自行動網路20的基地台的一筆或更多筆第二信令(以下將以S1介面的S1-AP封包為例,但不以此類型為限)(步驟S431),第二信令擷取分析模組133可自這些第二信令中取得起始上下文建立(initial context setup)的封包(例如InitialContext SetupRequest封包)(步驟S432),並自此封包得到用戶設備10的端點識別碼(例如,TEID,且其數值例如是789456、567891等,但不以此為限)(步驟S433),再透過此端點識別碼查找全網用戶資料表資料對應的APN、門號、用戶網路位址、基地台網路位址等用戶資訊(步驟S451及S452)。接著,信令擷取分析模組131可將這些組合(即,端點識別碼)與本地卸載條件表資訊進行比對(步驟S453),以判斷此端點識別碼是否符合本地卸載權限。信令擷取分析模組131可並依據比對結果(符合本地卸載權限的情況下)將此端點識別碼傳送給本地卸載判斷模組136(步驟S454)。反之(未符合),則無須對本地卸載判斷模組136更新。此外,若收到第二信令擷取分析模組133自這些第二信令中取得關於用戶設備上下文釋放的封包(例如,UEContextRelease封包)(步驟S434),則將通知本地卸載判斷模組136刪除其端點識別碼對應的用戶資訊(步驟S435)。On the other hand, if one or more second signalings from the base station of the mobile network 20 are received (the following will take the S1-AP packet of the S1 interface as an example, but not limited to this type) (step S431), the second signaling acquisition and analysis module 133 can obtain the initial context setup (eg, InitialContext SetupRequest) packet (eg, the InitialContext SetupRequest packet) from the second signaling (step S432), and obtain the user from the packet The endpoint identification code of the device 10 (for example, TEID, and its value is, for example, 789456, 567891, etc., but not limited to this) (step S433), and then through this endpoint identification code to look up the network-wide user data table data corresponding to User information such as APN, door number, user network address, and base station network address (steps S451 and S452). Next, the signaling capture analysis module 131 can compare these combinations (ie, endpoint identifiers) with the local uninstall condition table information (step S453 ) to determine whether the endpoint identifier complies with the local uninstall permission. The signaling capture analysis module 131 can transmit the endpoint identification code to the local uninstall determination module 136 according to the comparison result (in the case of conforming to the local uninstall authority) (step S454 ). Otherwise (not in compliance), the local uninstall determination module 136 does not need to be updated. In addition, if the second signaling is received and the analysis module 133 obtains packets related to the user equipment context release (eg, UEContextRelease packets) from the second signaling (step S434 ), the local uninstall determination module 136 will be notified Delete the user information corresponding to the endpoint identification code (step S435).

圖5是依據本發明的一實施例的網域名稱系統(DNS)解析的流程圖。請參照圖5,圖中左半邊部分負責處理來自本地卸載條件設定模組135的資訊。若網域名稱系統解析模組134接收到新增的網址資訊(即,所欲新增的網域名稱)(步驟S514),則儲存至本地卸載之網域名稱與(網域)網路網址對照表(步驟S515)。若網域名稱系統解析模組134接收到刪除的網址資訊(即,所欲刪除的網域名稱)(步驟S511),則到網域名稱與網路網址對照表中查詢此欲刪除網域名稱對應之網路位址(步驟S512),並發出刪除此網路位址的刪除指令到本地卸載判斷模組136(步驟S513)。另一方面,圖中右半邊部分為處理來自核心網路40之下行訊務封包(下文以GTP-U下行封包為例,但不以此為限)。若網域名稱系統解析模組134接收到欲傳送給某一用戶設備10的GTP-U下行封包(步驟S521),則判斷此封包是否為網域名稱系統(DNS)中用於查詢網域的回應封包(步驟S522)。若是回應封包,則網域名稱系統解析模組134判斷此回應封包所夾帶的網域名稱是否存在於需進行本地卸載之網域名稱表(記錄於本地卸載條件資訊)中(即,是否可本地卸載)(步驟S523)。若存在於需進行本地卸載之網域名稱表,則網域名稱系統解析模組134取得並回傳對應網域網路位址及其存活時間(例如,TTL(Time To Live))給本地卸載判斷模組136(以供本地卸載判斷模組136依據此網域網路位址及存活時間判斷是否轉送上行訊務封包),並將網域網路位址及其存活時間等資訊儲存至網域名稱與網路網址對照表(步驟S524及S525)。例如,表(3)是一範例說明網域名稱與網路網址對照表: 表(3) 網域名稱 IP位址 www.cht.com 10.20.1.1 www.chtlearn.com 10.20.2.2 FIG. 5 is a flowchart of Domain Name System (DNS) resolution according to an embodiment of the present invention. Referring to FIG. 5 , the left half of the figure is responsible for processing information from the local uninstall condition setting module 135 . If the domain name system analysis module 134 receives the newly added website information (ie, the domain name to be added) (step S514 ), the domain name and the (domain) website address are stored in the local uninstalled domain name. A lookup table (step S515). If the domain name system analysis module 134 receives the information of the website to be deleted (ie, the domain name to be deleted) (step S511 ), it searches the domain name to be deleted in the comparison table of domain name and website address. corresponding network address (step S512 ), and issue a delete instruction to delete the network address to the local uninstall determination module 136 (step S513 ). On the other hand, the right half of the figure is for processing downlink traffic packets from the core network 40 (GTP-U downlink packets are used as an example in the following, but not limited thereto). If the DNS resolution module 134 receives the GTP-U downlink packet to be transmitted to a certain user equipment 10 (step S521 ), it is determined whether the packet is used for querying a network domain in the Domain Name System (DNS). A response packet is received (step S522). If it is a response packet, the domain name system parsing module 134 determines whether the domain name contained in the response packet exists in the domain name table (recorded in the local uninstall condition information) that needs to be uninstalled locally (that is, whether it can be locally uninstalled or not). uninstall) (step S523). If it exists in the domain name table to be uninstalled locally, the domain name system resolution module 134 obtains and returns the corresponding domain network address and its lifetime (eg, TTL (Time To Live)) to the local uninstallation The judging module 136 (for the local uninstall judging module 136 to judge whether to forward the uplink traffic packet according to the network address and the survival time), and store the information such as the network address and the survival time in the network A comparison table between domain names and web addresses (steps S524 and S525). For example, Table (3) is an example of a comparison table of domain names and web addresses: Table (3) domain name IP address www.cht.com 10.20.1.1 www.chtlearn.com 10.20.2.2

圖6是依據本發明的一實施例的本地卸載判斷的流程圖。請參照圖6,圖中左半邊為處理來自各模組傳遞過來資料。若接收來自信令擷取分析模組131的指令及其端點識別碼(步驟S611),則本地卸載判斷模組136判斷指令是新增或是刪除指令(步驟S612)。若是新增指令,則本地卸載判斷模組136自本地卸載條件資訊中新增可本地卸載的端點識別碼(步驟S613);若是刪除指令,則本地卸載判斷模組136自本地卸載條件資訊中刪除可本地卸載的端點識別碼(步驟S614)。FIG. 6 is a flowchart of local uninstall determination according to an embodiment of the present invention. Please refer to Figure 6, the left half of the figure is for processing the data transmitted from each module. If the command and the endpoint identification code thereof are received from the signaling capture analysis module 131 (step S611 ), the local uninstall determination module 136 determines whether the command is a new or deleted command (step S612 ). If the command is added, the local uninstall determination module 136 adds an endpoint identification code that can be uninstalled locally from the local uninstall condition information (step S613 ); if the instruction is deleted, the local uninstall determination module 136 adds the locally uninstalled condition information from the local uninstall condition information. The locally uninstallable endpoint identification code is deleted (step S614).

若接收來自本地卸載條件設定模組135的指令及其目的地網路位址(步驟S621),則本地卸載判斷模組136判斷此指令是新增或是刪除指令(步驟S622)。若是新增指令,則本地卸載判斷模組136自本地卸載條件資訊中新增可本地卸載的目的地網路位址(步驟S623) ;若是刪除指令,則本地卸載判斷模組136自本地卸載條件資訊中移除可本地卸載的目的地網路位址(步驟S624)。If the command and its destination network address are received from the local uninstall condition setting module 135 (step S621 ), the local uninstall determination module 136 determines whether the command is a new or deleted command (step S622 ). If the instruction is added, the local uninstall determination module 136 adds a destination network address that can be uninstalled locally from the local uninstall condition information (step S623); if the instruction is deleted, the local uninstall determination module 136 selects the local uninstall condition from the local uninstall condition information (step S623). The destination network address that can be downloaded locally is removed from the information (step S624).

若接收來自網域名稱系統解析模組134的指令及其網域網路網址及存活時間(步驟S631),則本地卸載判斷模組136判斷指令是新增或是刪除指令(步驟S632)。若是新增指令,則本地卸載判斷模組136自本地卸載條件資訊中新增可本地卸載的網域網路網址及其存活時間(步驟S633);若是刪除指令,則本地卸載判斷模組136自本地卸載條件資訊中刪除可本地卸載的網域網路網址及其存活時間(步驟S634)。If receiving the command from the domain name system resolution module 134 and its domain network address and time-to-live (step S631 ), the local uninstall determination module 136 determines whether the command is an addition or deletion command (step S632 ). If the instruction is newly added, the local uninstall determination module 136 adds the locally uninstallable domain network URL and its survival time from the local uninstall condition information (step S633); if the instruction is deleted, the local uninstall determination module 136 automatically From the local uninstall condition information, delete the domain network URLs that can be uninstalled locally and their survival time (step S634).

另一方面,圖中右半邊為處理用戶的GTP-U上行封包(即,上行訊務封包的一種範例,但不以此為限)。本地卸載判斷模組136接收GTP-U上行封包後(步驟S651),自封包中取出端點識別碼並查表(例如,本地卸載條件資訊)判斷是否需本地卸載(步驟S652)。若需要本地卸載,則本地卸載判斷模組136比對封包內層所記載的目的地網路位址是否為須本地卸載之網路位址(步驟S653),並判斷此目的地網路位址的存活時間是否已過期(步驟S655)。若無過期,則本地卸載判斷模組136可移除外層IP及GTP欄位以進行本地卸載(步驟S657),並將剩餘封包轉送往對應的本地卸載服務端(即,內部伺服器30)(步驟S658)。另一方面,若已過期,則本地卸載判斷模組136可刪除對應的網路位址資訊(步驟S656),並將此GTP-U上行封包往核心網路40的S-GW傳送(步驟S654)(即,無須本地卸載)。On the other hand, the right half of the figure is for processing the user's GTP-U uplink packet (ie, an example of the uplink traffic packet, but not limited thereto). After receiving the GTP-U uplink packet (step S651 ), the local offload determination module 136 extracts the endpoint identifier from the packet and looks up a table (eg, local offload condition information) to determine whether local offload is required (step S652 ). If local offloading is required, the local offloading judging module 136 compares whether the destination network address recorded in the inner layer of the packet is the network address that requires local offloading (step S653 ), and determines the destination network address Whether the time-to-live has expired (step S655). If not expired, the local offload determination module 136 can remove the outer IP and GTP fields to perform local offload (step S657 ), and forward the remaining packets to the corresponding local offload server (ie, the internal server 30 ) (step S658). On the other hand, if it has expired, the local uninstall determination module 136 may delete the corresponding network address information (step S656 ), and transmit the GTP-U uplink packet to the S-GW of the core network 40 (step S654 ) ) (ie, no local uninstall required).

為了方便讀者更加理解本發明實施例的發明精神,以下再舉一實施例說明:For the convenience of readers to better understand the spirit of the invention of the embodiments of the present invention, another embodiment is described below:

第一步驟:設定人員進行用戶權限供裝設定。第二步驟:本地卸載條件設定模組135將設定中的網址資訊傳送至網域名稱系統解析模組134,將目的地IP資訊傳送至本地卸載判斷模組136,並將其餘用戶IP位址、門號、基地台IP位址、APN等用戶資訊儲存於本地卸載條件設定模組135內且供後續信令擷取分析模組131來查找。第三步驟:信令擷取分析模組131會自動擷取全網行動用戶的信令資訊,經分析信令後儲存全網用戶的用戶IP位址、門號、基地台IP、APN等用戶資訊至全網用戶資料表。第四步驟:通訊收發器110接收MEC區域內之用戶訊務封包,若信令擷取分析模組131判斷此封包為上行封包則導向本地卸載判斷模組136,若為下行封包則導向網域名稱系統解析模組134。第五步驟:若網域名稱系統解析模組134判斷此封包為DNS回應封包,且其查詢的網域名稱存在欲本地卸載之網址,則將對應IP位址及其TTL傳至本地卸載判斷模組136。第六步驟:用戶於MEC區域內產生信令程序時,信令擷取分析模組131抓取用戶信令資訊中的TEID。第七步驟:信令擷取分析模組131以此TEID至全網用戶資料表中查詢對應之用戶資訊(包括用戶IP位址、門號、基地台IP位址、及APN),並將這些用戶資訊至本地卸載條件設定模組135查詢。若符合本地卸載條件資訊,則信令擷取分析模組131傳送TEID到本地卸載判斷模組136。第八步驟:本地卸載判斷模組136接收MEC區域內之用戶訊務封包並抓取封包內TEID查表判斷是否需進行本地卸載。若需要本地卸載,則本地卸載判斷模組136接著抓取目的地IP位址並判斷是否為本地卸載目的地IP位址,且判斷此IP位址之TTL並無過期。最後,本地卸載判斷模組136將符合條件的封包移除GTP標頭(header)後送往對應之MEC服務的內部伺服器30;不符合條件之封包則送往核心網路40。The first step: the setting personnel set the user permissions for installation. The second step: the local uninstall condition setting module 135 sends the URL information in the setting to the domain name system resolution module 134, sends the destination IP information to the local uninstall determination module 136, and sends the remaining user IP addresses, User information such as door number, base station IP address, APN, etc., is stored in the local uninstall condition setting module 135 and is used for searching by the subsequent signaling extraction and analysis module 131 . Step 3: The signaling capture and analysis module 131 will automatically capture the signaling information of the mobile users in the entire network, and after analyzing the signaling, store the user IP addresses, door numbers, base station IPs, APNs and other users of the users in the entire network. Information to the entire network user data sheet. The fourth step: the communication transceiver 110 receives the user traffic packet in the MEC area. If the signaling capture and analysis module 131 determines that the packet is an uplink packet, it will be directed to the local offload determination module 136, and if it is a downlink packet, it will be directed to the network domain. Name system resolution module 134 . Step 5: If the domain name system resolution module 134 determines that the packet is a DNS response packet, and the domain name queried has a URL to be uninstalled locally, then the corresponding IP address and its TTL are sent to the local uninstall determination module. Group 136. Step 6: When the user generates a signaling procedure in the MEC area, the signaling capture and analysis module 131 captures the TEID in the user's signaling information. Step 7: The signaling capture and analysis module 131 uses the TEID to query the corresponding user information (including the user IP address, door number, base station IP address, and APN) in the user data table of the entire network, and uses these TEIDs. The user information is inquired into the local uninstall condition setting module 135 . If the local uninstall condition information is met, the signaling capture analysis module 131 transmits the TEID to the local uninstall determination module 136 . The eighth step: the local uninstall determination module 136 receives the user traffic packet in the MEC area, and grabs the TEID in the packet and looks up the table to determine whether local uninstall is required. If local offloading is required, the local offloading determining module 136 then grabs the destination IP address and determines whether it is the local offloading destination IP address, and determines that the TTL of the IP address has not expired. Finally, the local offload determination module 136 removes the GTP header from the qualified packets and sends them to the corresponding internal server 30 of the MEC service; the unqualified packets are sent to the core network 40 .

綜上所述,本發明實施例的行動邊緣運算平台及基於行動邊緣運算的封包卸載方法包括以下特點:To sum up, the mobile edge computing platform and the packet offloading method based on the mobile edge computing according to the embodiments of the present invention include the following features:

本發明實施例透過多種管道,包含從基地台、APN、用戶門號、瀏覽網站等資料都可作為本地卸載的條件,從而增加比對彈性。In the embodiments of the present invention, various channels, including data from base stations, APNs, user numbers, browsing websites, etc., can be used as conditions for local unloading, thereby increasing the flexibility of comparison.

本發明實施例提供管理者多種本地卸載條件設定,可設定小範圍達到細微控制單一用戶行為,或設定大範圍管控整區用戶行為,能夠更彈性的管理行動邊緣網路用戶。The embodiments of the present invention provide administrators with multiple local uninstall condition settings, which can be set in a small range to finely control the behavior of a single user, or set in a large range to control the behavior of users in an entire area, which can more flexibly manage mobile edge network users.

本發明實施例僅需看封包外層資訊便可確認是否為需本地卸載之封包,從而增加處理封包效能。In the embodiment of the present invention, it is only necessary to look at the outer layer information of the packet to confirm whether it is a packet that needs to be unloaded locally, thereby increasing the processing efficiency of the packet.

在商業應用方面,本發明實施例提供企業用戶除了能以更細微的方式管理公司員工本地卸載符合企業需求外,更能提升資安防護,並使其內部資料不外洩。In terms of commercial applications, the embodiments of the present invention provide enterprise users with the ability to manage the local uninstallation of company employees in a more subtle manner to meet the needs of the enterprise, and to improve information security protection and prevent internal data leakage.

雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed above by the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the scope of the appended patent application.

10:用戶設備 20:行動網路 30:內部網路 40:核心網路 50:Internet 100:行動邊緣運算平台 110:通訊收發器 130:儲存器 131:信令擷取分析模組 132:第一信令擷取分析模組 133:第二信令擷取分析模組 134:網域名稱系統解析模組 135:本地卸載條件設定模組 136:本地卸載判斷模組 S210~S270、S310~S370、S410~S454、S511~S525、S611~S658:步驟10: User Equipment 20: Mobile Internet 30: Intranet 40: Core Network 50:Internet 100: Mobile Edge Computing Platform 110: Communication transceiver 130: Storage 131: Signal capture analysis module 132: The first signaling capture and analysis module 133: Second signaling capture and analysis module 134: Domain Name System Resolution Module 135: Local uninstall condition setting module 136: Uninstall judgment module locally S210~S270, S310~S370, S410~S454, S511~S525, S611~S658: Steps

圖1是依據本發明的一實施例的行動邊緣運算平台的元件方塊圖。 圖2是依據本發明的一實施例的基於行動邊緣運算的封包卸載方法的流程圖。 圖3是依據本發明的一實施例的卸載條件設定的流程圖。 圖4是依據本發明的一實施例的信令擷取分析的流程圖。 圖5是依據本發明的一實施例的網域名稱系統(Domain Name System,DNS)解析的流程圖。 圖6是依據本發明的一實施例的本地卸載判斷的流程圖。FIG. 1 is a block diagram of components of a mobile edge computing platform according to an embodiment of the present invention. FIG. 2 is a flowchart of a packet offloading method based on mobile edge computing according to an embodiment of the present invention. FIG. 3 is a flowchart of unloading condition setting according to an embodiment of the present invention. FIG. 4 is a flowchart of signaling extraction and analysis according to an embodiment of the present invention. FIG. 5 is a flowchart of domain name system (Domain Name System, DNS) resolution according to an embodiment of the present invention. FIG. 6 is a flowchart of local uninstall determination according to an embodiment of the present invention.

S210~S270:S210~S270:

Claims (10)

一種行動邊緣運算(Mobile Edge Computing,MEC)平台,包括: 一通訊收發器,接收來自一行動網路之一上行訊務封包; 一儲存器,記錄多個軟體模組;以及 一處理器,耦接該通訊收發器及該儲存器,且存取並執行該儲存器所記錄的該些軟體模組,而該些軟體模組包括: 一信令擷取分析模組,自信令封包取得一用戶設備經由一隧道協定(tunneling protocol)傳送用戶資料的一端點識別碼,並依據該端點識別碼取得該用戶設備的用戶資訊;以及 一本地卸載判斷模組,依據該端點識別碼及該上行訊務封包的一目的地網路位址判斷是否將原先送至一核心網路的該上行訊務封包轉送至一內部伺服器。A Mobile Edge Computing (MEC) platform, comprising: a communication transceiver for receiving an uplink communication packet from a mobile network; a memory for recording a plurality of software modules; and A processor, coupled to the communication transceiver and the storage, accesses and executes the software modules recorded in the storage, and the software modules include: a signaling extraction and analysis module, which obtains an endpoint identification code of a user equipment that transmits user data via a tunneling protocol from a signaling packet, and obtains the user information of the user equipment according to the endpoint identification code; and A local offload determination module determines whether to forward the uplink traffic packet originally sent to a core network to an internal server according to the endpoint identification code and a destination network address of the uplink traffic packet. 如請求項1所述的行動邊緣運算平台,其中該用戶資訊包括一門號、一存取點名稱(Access Point Name,APN)、一基地台網路位址、以及一用戶網路位址,該信令擷取分析模組判斷該用戶資訊及該端點識別碼是否符合一本地卸載權限,且若符合該本地卸載權限則該本地卸載判斷模組判斷是否轉送該上行訊務封包。The mobile edge computing platform of claim 1, wherein the user information includes a door number, an Access Point Name (APN), a base station network address, and a user network address, the The signaling capture analysis module determines whether the user information and the endpoint identification code conform to a local offload authority, and if the local offload permission is met, the local offload determination module determines whether to forward the uplink traffic packet. 如請求項1所述的行動邊緣運算平台,其中該通訊收發器接收來自該核心網路之一下行訊務封包,且該些軟體模組更包括: 一網域名稱系統(Domain Name System,DNS)解析模組,判斷該下行訊務封包是否為查詢一網域的回應封包,並依據該網域取得該下行訊務封包對應的一網域網路位址及其存活時間,且該本地卸載判斷模組依據該網域網路位址及該存活時間判斷是否轉送該上行訊務封包。The mobile edge computing platform of claim 1, wherein the communication transceiver receives a downlink traffic packet from the core network, and the software modules further comprise: A domain name system (Domain Name System, DNS) parsing module determines whether the downlink traffic packet is a response packet for querying a domain, and obtains a domain network corresponding to the downlink traffic packet according to the domain address and its survival time, and the local offload judging module determines whether to forward the uplink traffic packet according to the network domain network address and the survival time. 如請求項3所述的行動邊緣運算平台,其中該本地卸載判斷模組依據該目的地網路位址取得對應的該存活時間,並判斷該存活時間是否過期,且若該存活時間尚未過期,則該本地卸載判斷模組移除該上行訊務封包中該隧道協定的標頭並轉送剩餘封包至該內部伺服器。The mobile edge computing platform according to claim 3, wherein the local offload determination module obtains the corresponding survival time according to the destination network address, and determines whether the survival time has expired, and if the survival time has not expired, Then, the local offload determination module removes the header of the tunnel protocol in the uplink traffic packet and forwards the remaining packets to the internal server. 如請求項2所述的行動邊緣運算平台,其中該通訊收發器接收來自該核心網路之至少一第一信令、以及來自一基地台之至少一第二信令,該信令擷取分析模組自該至少一第一信令中關於創建會談(create session)的封包取得對應的該門號、該存取點名稱、以及該用戶網路位址,並自該至少一第一信令中關於修改承載(modify bearer)的封包取得對應的該端點識別碼、該門號、該存取點名稱、該基地台網路位址、以及該用戶網路位址,並據以儲存至一全網用戶資料表,且該信令擷取分析模組自該至少一第二信令中關於起始上下文建立(initial context setup)的封包取得該端點識別碼,並依據該端點識別碼自該全網用戶資料表中查詢該用戶資訊。The mobile edge computing platform of claim 2, wherein the communication transceiver receives at least one first signaling from the core network and at least one second signaling from a base station, and the signaling is captured and analyzed The module obtains the corresponding door number, the access point name, and the user network address from the packet about create session in the at least one first signaling, and obtains the corresponding address from the at least one first signaling The corresponding endpoint identification code, the gate number, the access point name, the base station network address, and the user network address are obtained from the packet about modifying the bearer, and stored in the a network-wide user data table, and the signaling extraction and analysis module obtains the endpoint identification code from a packet related to initial context setup in the at least one second signaling, and according to the endpoint identification The code is used to query the user information from the user data table of the whole network. 一種基於行動邊緣運算的封包卸載方法,包括: 接收來自一行動網路之一上行訊務封包; 自信令封包取得一用戶設備經由一隧道協定傳送用戶資料的一端點識別碼; 依據該端點識別碼取得該用戶設備的用戶資訊;以及 依據該端點識別碼及該上行訊務封包的一目的地網路位址判斷是否將原先送至一核心網路的該上行訊務封包轉送至一內部伺服器。A packet offloading method based on mobile edge computing, comprising: receiving an uplink traffic packet from a mobile network; Obtaining an endpoint identifier of a user equipment for transmitting user data via a tunneling protocol from the signaling packet; obtain user information of the user equipment according to the endpoint identifier; and Whether to forward the upstream traffic packet originally sent to a core network to an internal server is determined according to the endpoint identification code and a destination network address of the upstream traffic packet. 如請求項6所述的基於行動邊緣運算的封包卸載方法,其中該用戶資訊包括一門號、一存取點名稱、一基地台網路位址、以及一用戶網路位址,其中判斷是否將原先送至該核心網路的該上行訊務封包轉送至該內部伺服器的步驟包括: 判斷該端點識別碼是否符合一本地卸載權限;以及 若符合該本地卸載權限,則判斷是否轉送該上行訊務封包。The packet unloading method based on mobile edge computing as claimed in claim 6, wherein the user information includes a door number, an access point name, a base station network address, and a user network address, wherein it is determined whether to The steps of forwarding the upstream traffic packet originally sent to the core network to the internal server include: determining whether the endpoint identifier conforms to a local uninstall permission; and If the local offload permission is met, it is determined whether to forward the uplink traffic packet. 如請求項6所述的基於行動邊緣運算的封包卸載方法,更包括: 接收來自該核心網路之一下行訊務封包; 判斷該下行訊務封包是否為查詢一網域的回應封包;以及 依據該網域取得該下行訊務封包對應的一網域網路位址及其存活時間,其中判斷是否將原先送至該核心網路的該上行訊務封包轉送至該內部伺服器的步驟包括: 依據該網域網路位址及該存活時間判斷是否轉送該上行訊務封包。The packet unloading method based on mobile edge computing as described in claim 6, further comprising: receiving a downlink traffic packet from one of the core networks; determining whether the downlink traffic packet is a response packet for querying a network domain; and Obtaining a network domain network address and its survival time corresponding to the downlink traffic packet according to the network domain, wherein the step of determining whether to forward the uplink traffic packet originally sent to the core network to the internal server includes the following steps: : It is judged whether to forward the uplink traffic packet according to the network domain network address and the survival time. 如請求項8所述的基於行動邊緣運算的封包卸載方法,其中依據該網域網路位址及該存活時間判斷是否轉送該上行訊務封包的步驟包括: 依據該目的地網路位址取得對應的該存活時間; 判斷該存活時間是否過期; 若該存活時間尚未過期,則移除該上行訊務封包中該隧道協定的標頭並轉送剩餘封包至該內部伺服器。The packet offloading method based on mobile edge computing according to claim 8, wherein the step of judging whether to forward the uplink traffic packet according to the network domain network address and the time-to-live includes: Obtain the corresponding time-to-live according to the destination network address; Determine whether the survival time has expired; If the time-to-live has not expired, remove the header of the tunnel protocol in the upstream traffic packet and forward the remaining packets to the internal server. 如請求項7所述的基於行動邊緣運算的封包卸載方法,更包括: 接收來自該核心網路之至少一第一信令、以及來自一基地台之至少一第二信令; 自該至少一第一信令中關於創建會談的封包取得對應的該門號、該存取點名稱、以及該用戶網路位址; 自該至少一第一信令中關於修改承載的封包取得對應的該端點識別碼、該門號、該存取點名稱、該基地台網路位址、以及該用戶網路位址,並據以儲存至一全網用戶資料表; 自該至少一第二信令中關於起始上下文建立的封包取得該端點識別碼;以及 依據該端點識別碼自該全網用戶資料表中查詢該用戶資訊。The packet unloading method based on mobile edge computing as described in claim 7, further comprising: receiving at least one first signaling from the core network and at least one second signaling from a base station; Obtain the corresponding door number, the access point name, and the user network address from the packet about establishing the session in the at least one first signaling; Obtain the corresponding endpoint identification code, the gate number, the access point name, the base station network address, and the user network address from the packet about modifying the bearer in the at least one first signaling, and Accordingly, it is stored in a network-wide user data table; Obtaining the endpoint identifier from the packet in the at least one second signaling for initiating context establishment; and The user information is inquired from the network-wide user data table according to the endpoint identification code.
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