WO2017152723A1 - 一种数据传输方法、装置及系统 - Google Patents

一种数据传输方法、装置及系统 Download PDF

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Publication number
WO2017152723A1
WO2017152723A1 PCT/CN2017/071762 CN2017071762W WO2017152723A1 WO 2017152723 A1 WO2017152723 A1 WO 2017152723A1 CN 2017071762 W CN2017071762 W CN 2017071762W WO 2017152723 A1 WO2017152723 A1 WO 2017152723A1
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WIPO (PCT)
Prior art keywords
data packet
service data
service
server
address
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PCT/CN2017/071762
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English (en)
French (fr)
Inventor
段江海
Original Assignee
大唐移动通信设备有限公司
Priority date (The priority date 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 date listed.)
Filing date
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
Priority to KR1020187028823A priority Critical patent/KR102044847B1/ko
Priority to EP17762409.5A priority patent/EP3429260B1/en
Priority to JP2018547268A priority patent/JP6622927B2/ja
Priority to US16/081,952 priority patent/US10992769B2/en
Publication of WO2017152723A1 publication Critical patent/WO2017152723A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/63Routing a service request depending on the request content or context
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/2866Architectures; Arrangements
    • H04L67/289Intermediate processing functionally located close to the data consumer application, e.g. in same machine, in same home or in same sub-network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/563Data redirection of data network streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50Service provisioning or reconfiguring

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, and system.
  • the service platform is deployed behind the core network.
  • MEC Mobile Edge Compute
  • the service server is divided into a local service server and a remote service server according to the actual deployment location of the service platform.
  • the local service server is deployed on the access network side (for example, the base station side), and the remote service server is deployed on the core network side.
  • End business server means a business server that is not deployed locally.
  • the local deployment of the service server enables the MEC server to implement the offloading of the local service, so that the user equipment (User Equipment, UE) can access the local service in the vicinity, without passing through the transmission network and the core network, thereby reducing the bandwidth consumption of the transmission network. Reduce business latency and improve user perception.
  • the existing data transmission modes can be divided into the following two types: one is a pass-through mode, and the user plane data is directly transmitted between the UE and the remote service server, and no local service server participates; One is the offload mode, which is relative to the local service, that is, the user plane data is only transmitted between the UE and the local service server, and there is no participation of the remote service server.
  • One is the offload mode, which is relative to the local service, that is, the user plane data is only transmitted between the UE and the local service server, and there is no participation of the remote service server.
  • there are other specific scenarios such as video backhaul and analysis scenarios
  • the existing data transmission mode cannot meet the needs of specific scenarios.
  • the existing data transmission method is only applicable to a limited MEC application scenario, and cannot meet specific MEC application scenarios such as video backhaul and analysis.
  • the embodiment of the invention provides a data transmission method, device and system, which are used to widen the application scenario of the MEC, so that the service data can be terminated not only on the local service platform but also processed by the local service platform and then delivered to the remote service.
  • the platform processes, or the business data is processed by the remote service platform, and then processed by the local service platform.
  • a data transmission method provided by an embodiment of the present invention includes:
  • the MEC server determines, according to the preset data forwarding information table, a service data packet forwarding mode corresponding to the local service server, where the service data packet forwarding mode
  • the local data termination mode is used to indicate that the service data packet is transmitted between the user equipment UE and the local service server, or the service data packet forwarding mode is a local data transmission mode, to indicate that the service data packet is in the The transmission between the UE and the remote service server needs to be processed by the local service server;
  • the MEC server processes and processes the service data packet according to the processing mode corresponding to the service data packet forwarding mode according to the service data packet forwarding mode corresponding to the local service server.
  • the MEC server when receiving the service data packet sent by the local service server, determines the forwarding mode of the service data packet corresponding to the local service server according to the preset data forwarding information table, and further And transmitting, according to the service data packet forwarding mode corresponding to the local service server, the service data packet is processed and sent in a processing manner corresponding to the service data packet forwarding mode, thereby effectively widening the application scenario of the MEC, so that the application scenario of the MEC is effectively expanded.
  • the service data can be terminated not only on the local service platform, but also the service data can be processed by the local service server, and the entire service process can be completed without the participation of the remote service server.
  • the processing is performed by the remote service platform, or the service data is processed by the remote service platform, and then processed by the local service platform, and then sent to the UE.
  • the MEC server determines the forwarding mode of the service data packet corresponding to the local service server according to the preset data forwarding information table, which specifically includes:
  • the MEC server When receiving the service data packet sent by the local service server, the MEC server queries the local service server from the preset data forwarding information table according to the IP address of the local service server carried in the service data packet.
  • the service data packet forwarding mode corresponding to the IP address determines the forwarding mode of the service data packet corresponding to the local service server.
  • the MEC server processes the service data packet according to the service data packet forwarding mode corresponding to the local service server, and sends the service data packet to the service data packet forwarding mode, including :
  • the MEC server modifies the format of the service data packet, and determines an uplink bearer for transmitting the modified service data packet to the remote service server, and sends the modified service data packet by using the uplink bearer. ;or,
  • the MEC server determines The downlink bearer used for transmitting the service data packet to the UE, and sending the service data packet by using the downlink bearer.
  • the service data sent by the UE can be processed by the local service server, and then processed by the remote service server, or the service data sent by the remote service server can be processed by the local service server and then sent to the UE.
  • the service data packet forwarding mode corresponding to the local service server is a local data via mode
  • the target IP address obtained by the MEC server from the service data packet is an IP address of the remote service server.
  • the MEC server modifies the format of the service data packet, and determines an uplink bearer for transmitting the modified service data packet to the remote service server, and sends the modified uplink bearer by using the uplink bearer.
  • Service data packets including:
  • the MEC server obtains the IP address of the UE according to the agreed format in the payload of the service data packet sent by the local service server, and then strips the IP address of the UE to construct a new service datagram.
  • the MEC server obtains an Access Point Name (APN) information corresponding to an IP address of the local service server and an IP address of the remote service server according to a preset data forwarding information table, and determines The uplink bearer corresponding to the UE in the APN, the new service data packet is sent to the System Architecture Evolution Gateway (SAE-GW) by the uplink bearer, and the new The service data packet is sent to the remote service server.
  • APN Access Point Name
  • SAE-GW System Architecture Evolution Gateway
  • the service data packet forwarding mode corresponding to the local service server is a local data via mode
  • the target IP address obtained by the MEC server from the service data packet is an IP address of the UE
  • the MEC server determines a downlink bearer for transmitting the service data packet to the UE, and sends the service data packet by using the downlink bearer, specifically:
  • the MEC server queries the bearer information corresponding to the UE from the pre-stored correspondence table between the IP address of the UE and the bearer according to the IP address of the UE obtained from the service data packet;
  • the MEC server determines, according to the bearer information, a downlink bearer for transmitting the service data packet to the UE, and sends the service data packet to the base station by using the downlink bearer, where the base station sends the service data packet to the UE.
  • the MEC server processes and processes the service data packet according to the service data packet forwarding mode corresponding to the local service server, and further includes: :
  • the MEC server determines that the service data packet needs to be sent to the UE;
  • the MEC server obtains the IP address of the UE from the service data packet, and determines a downlink bearer for transmitting the service data packet to the UE according to the IP address of the UE, and sends the service data by using the downlink bearer.
  • the packet is sent to the base station, and the service data packet is sent by the base station to the UE.
  • the method further comprises:
  • the MEC server When the MEC server receives the service data packet forwarded by the SAE-GW, the MEC server receives the service data packet from the MEC server. Obtain the target IP address in the service data packet;
  • the MEC server When it is determined that the target IP address is the IP address of the local service server, the MEC server sends the received service data packet to the local service server; or when determining that the target IP address is the IP address of the UE, The MEC server determines, according to the IP address of the UE, a downlink bearer for transmitting a service data packet to the UE, and sends the received service data packet to the base station by using the downlink bearer, where the base station sends the service data packet Sent to the UE.
  • a data transmission method provided by an embodiment of the present invention includes:
  • the IP address of the local service server is used as the source IP address and the IP address of the remote service server is used as the destination IP address in the service data packet. And adding the IP address of the UE to the Payload of the service data packet according to the agreed format, and constructing a new service data packet;
  • the local service server sends the new service data packet to the mobile edge computing MEC server, and the MEC server determines the service data packet forwarding mode corresponding to the local service server according to the IP address of the local service server. And processing, according to the service data packet forwarding mode corresponding to the local service server, processing the service data packet by using a processing manner corresponding to the service data packet forwarding mode.
  • the method further comprises:
  • the local service server After receiving the service data packet, the local service server generates a service data packet to be sent, and uses the IP address of the local service server as the source IP address and the IP address of the UE as the target IP address. After being carried in the generated service data packet, the MEC server sends the received service data packet to the UE.
  • a data transmission apparatus provided by an embodiment of the present invention includes:
  • a determining unit configured to: when receiving the service data packet sent by the local service server, determine, according to the preset data forwarding information table, a service data packet forwarding mode corresponding to the local service server; wherein the service datagram
  • the text forwarding mode is a local data termination mode, which is used to indicate that the service data packet is transmitted between the user equipment UE and the local service server, or the service data packet forwarding mode is a local data transmission mode, which is used to indicate the service data.
  • the packet needs to be processed by the local service server when transmitting between the UE and the remote service server.
  • the processing unit is configured to process the service data packet according to the processing mode corresponding to the service data packet forwarding mode according to the service data packet forwarding mode corresponding to the local service server.
  • the determining unit is specifically configured to:
  • the service data packet forwarding mode determines the forwarding mode of the service data packet corresponding to the local service server.
  • the processing unit is specifically configured to:
  • the service data packet forwarding mode corresponding to the local service server is a local data access mode
  • the target IP address obtained from the service data packet is an IP address of the remote service server
  • the service data packet is used. Modifying the format, and determining an uplink bearer for transmitting the modified service data packet to the remote service server, and sending the modified service data packet by using the uplink bearer; or
  • the downlink bearer of the UE is sent, and the service data packet is sent by using the downlink bearer.
  • the processing unit modifies the format of the service data packet, and determines an uplink bearer for transmitting the modified service data packet to the remote service server, and sending the modification by using the uplink bearer.
  • the subsequent service data message it is specifically used to:
  • the IP address of the UE is stripped from the Payload of the service data packet sent by the local service server, and the IP address of the UE is stripped to construct a new service data packet.
  • the uplink bearer sends the new service data packet to the system architecture evolution gateway SAE-GW, and the SAE-GW sends the new service data packet to the remote service server.
  • the processing unit determines a downlink bearer used for transmitting the service data packet to the UE, and when the service data packet is sent by using the downlink bearer, specifically:
  • the processing unit is further configured to:
  • the service data packet forwarding mode is the local data termination mode, it is determined that the service data packet needs to be sent to the UE;
  • the service data packet is sent by the base station to the UE.
  • the determining unit is further configured to: when receiving the service data packet forwarded by the system architecture evolution gateway SAE-GW, the MEC server obtains the target IP address from the service data packet, and determines the target a network entity corresponding to the IP address;
  • the processing unit is further configured to: when the determining unit receives the service data packet forwarded by the SAE-GW, and determines When the network entity corresponding to the target IP address in the service data packet is the local service server, the service data packet received by the determining unit is sent to the local service server; or when the determining unit receives the SAE-GW Deriving the service data packet, and determining that the network entity corresponding to the target IP address in the service data packet is the UE, determining, according to the IP address of the UE, the downlink bearer used for transmitting the service data packet to the UE, and And transmitting, by the downlink bearer, the service data packet received by the determining unit to the base station, where the base station sends the service data packet to the UE.
  • a data transmission apparatus provided by an embodiment of the present invention includes:
  • the processing unit is configured to: when the service data packet needs to be sent to the remote service server, the IP address of the device is used as the source IP address, and the IP address of the remote service server is used as the destination IP address in the service data packet. And adding the IP address of the user equipment UE to the Payload of the service data packet according to the agreed format, and constructing a new service data packet;
  • a sending unit configured to send the new service data packet to the mobile edge computing MEC server, where the MEC server determines a forwarding mode of the service data packet corresponding to the device according to the IP address of the device, and according to the The service data packet forwarding mode corresponding to the device is processed after the service data packet is processed in a processing manner corresponding to the service data packet forwarding mode.
  • the processing unit is further configured to:
  • the sending unit is further configured to: send the service data packet that is generated and carries the IP address of the device and the IP address of the UE to the MEC server, and the MEC server sends the received service data packet to the UE.
  • a data transmission system provided by the embodiment of the present invention includes the foregoing data transmission device on the MEC server side, and a data transmission device on the local service server side.
  • FIG. 1 is a schematic diagram of a system network architecture and service data flow direction according to an embodiment of the present invention
  • FIG 2 is an application scenario diagram of video backhaul and analysis according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of a data transmission method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a processing procedure of a service data packet format in a data transmission process according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a processing procedure of a service data packet format in another data transmission process according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another data transmission apparatus according to an embodiment of the present invention.
  • the embodiment of the invention provides a data transmission method, device and system, which are used to widen the application scenario of the MEC, so that the service data can be terminated not only on the local service platform but also processed by the local service platform and then delivered to the remote service.
  • the platform processes, or the business data is processed by the remote service platform, and then processed by the local service platform.
  • local service template information such as a local service server IP address, an IP address prefix, and the like, are configured in advance for the MEC server, and the information may be, but is not limited to, configured by an operation management (OM) entity.
  • OM operation management
  • the embodiment of the present invention is also directed to the problem that the specific MEC application scenario (such as a video backhaul and analysis scenario) cannot be met in the prior art.
  • a data packet corresponding to the local service server is separately configured.
  • the data packet forwarding mode is a local data termination mode or a local data passing mode. For details, refer to the data forwarding information table shown in Table 1.
  • the data forwarding information table can be configured in advance by the OM entity for each local service server and stored in the MEC server.
  • the information in the data forwarding information table includes, but is not limited to, a data packet forwarding mode, a remote service server IP address, and an APN to which the remote service belongs, and the local service server and the remote service server are not limited to one-to-one. relationship.
  • Local service servers with different IP addresses can, for example, handle different local services.
  • the MEC server determines the forwarding mode of the service data packet corresponding to the local service server according to the preset data forwarding information table, and according to the local service
  • the service data packet forwarding mode corresponding to the server is processed by processing the service data packet in a processing manner corresponding to the service data packet forwarding mode, so that the service data can be terminated not only on the local service platform but also in the local service platform. After being processed by the local service platform, it is then processed by the remote service platform.
  • the system network architecture and service data flow provided by the embodiment of the present invention are as shown in FIG. 1 .
  • MEC The server, the evolved base station (e-NB), and the local service server are all deployed at the same network level, that is, close to the mobile edge, and the MEC server is connected to the e-NB and the local service server respectively; in the evolved packet core network (Evolved Packet Core) , EPC) side, including Mobility Management Entity (MME), SAE-GW, the remote service server after EPC is deployed at a higher network level (such as the core computer room), and the MEC server is connected in series with e- On the S1 interface between the NB and the EPC, the MEC server and the EPC are connected through a transmission network (such as a PTN network).
  • EPC evolved packet core network
  • MME Mobility Management Entity
  • SAE-GW Session In User Service
  • the first type corresponding to the data flow direction 1 in FIG. 1, the data transmission direction can be expressed as: UE ⁇ -->e-NB ⁇ -->MEC server ⁇ -->SAE-GW ⁇ -->remote service server. That is, the service data packet of the user plane can be started by the UE, and then transmitted to the remote service server through the e-NB, the MEC server, and the SAE-GW, and the service data packet of the user plane can also be sent by the remote service server. Initially, it is transmitted through the SAE-GW, the MEC server, and the e-NB, and finally transmitted to the UE.
  • the data transmission process only involves the processing of the remote service, and the transmission mode is referred to as a through mode.
  • the specific implementation process is as follows:
  • the target IP address of the UE is the IP address of the remote service server in the PDN network
  • the MEC server receives the service data packet sent by the UE after the e-NB receives the service data packet.
  • the source IP address (here, the IP address of the UE) and the destination IP address in the service data packet are determined, and the service data packet needs to be sent to the remote service server, so that the MEC server reports the service data.
  • the message is transmitted to the public network SAE-GW, and the service data packet is sent by the SAE-GW to the remote service server.
  • the MEC server before sending the service data packet to the SAE-GW, the MEC server needs to determine the uplink bearer, and then send the service data to the SAE-GW through the uplink bearer.
  • the process of determining the uplink bearer for example, the MEC server can obtain the corresponding relationship between the IP address and the bearer of the UE by monitoring the signaling and the service data of the S1 interface, and then determine the uplink bearer for transmitting the service data packet to the SAE-GW. .
  • the destination IP address of the remote service server is the IP address of the UE, and the MEC server receives the service sent by the remote service server forwarded by the public network SAE-GW.
  • the source IP address here, the IP address of the remote service server
  • the destination IP address in the service data packet are determined, and it is determined that the service data packet needs to be sent to the UE, so that the MEC server will
  • the service data packet is transparently transmitted to the e-NB, and the e-NB sends the service data packet to the UE.
  • the MEC server before sending the service data packet to the e-NB, the MEC server also needs to determine the downlink bearer, and then sends the service data to the e-NB through the downlink bearer.
  • the process of determining the downlink bearer for example, the MEC server can obtain the corresponding relationship between the IP address and the bearer of the UE by listening to the signaling and the service data of the S1 interface, and then determining the downlink bearer for transmitting the service data packet to the e-NB. .
  • the second type corresponding to the data flow direction 2 in FIG. 1, the data transmission direction can be expressed as: UE ⁇ -->e-NB ⁇ -->MEC Server ⁇ --> Local Business Server. That is, the service data packet of the user plane may be started by the UE, and then transmitted by the e-NB and the MEC server, and finally sent to the local service server; the service data packet of the user plane may also start from the local service server and pass through the MEC server respectively. The e-NB transmits and finally sends it to the UE.
  • the third type corresponding to the data flow direction 3 in FIG. 1, the data transmission direction can be expressed as: UE ⁇ -->e-NB ⁇ -->MEC server ⁇ -->local service server ⁇ -->MEC server ⁇ -->SAE-GW ⁇ -->The remote service server, that is, the service data packet of the user plane can be started by the UE, and transmitted to the local service server through the e-NB and MEC server respectively, and the service is sent by the local service server.
  • the data is processed and sent to the MEC server, and the MEC server sends the service data packet to the SAE-GW, and the SAE-GW finally sends the service data packet to the remote service server for processing; the service data packet of the user plane It can also be started by the remote service server, and sent to the local service server for processing by the SAE-GW and the MEC server respectively.
  • the local service server processes the service data and sends it to the MEC server, and the MEC server sends the service data packet to the MEC server.
  • the e-NB finally sends the service data packet to the UE by the e-NB.
  • the third transmission mode can be applied to a specific MEC application scenario such as video backhaul and analysis.
  • Figure 2 shows the application scenario of video backhaul and analysis.
  • the LTE terminal camera
  • the video stream is transmitted back to the local service platform through the LTE network (uplink);
  • the local service platform performs the first processing on the returned video stream, including code conversion, storage, and management. , compression, video analysis, and more.
  • the local service platform can configure events (such as moving objects, lost children, luggage, etc.) and detect and notify them, and then transmit the processed data such as events, metadata, and video slices to the remote end of the core equipment room.
  • business platform Since the local service platform converts high-bandwidth video streams into low-bandwidth events, metadata, video slicing, etc., the transmission bandwidth can be significantly saved. This scenario can be widely used in public security, smart cities and other fields.
  • a data transmission method provided by an embodiment of the present invention includes:
  • the MEC server determines, according to the preset data forwarding information table, a service data packet forwarding mode corresponding to the local service server, when the service data packet is sent by the local service server, where the service data packet is sent.
  • the forwarding mode is a local data termination mode, which is used to indicate that the service data packet is transmitted between the UE and the local service server, or the service data packet forwarding mode is a local data transmission mode, to indicate that the service data packet is in the The transmission between the UE and the remote service server needs to be processed by the local service server;
  • the preset data forwarding information table may be configured by the OM entity in advance for each local service server and stored in the MEC server, and details are not described herein.
  • the MEC server processes and processes the service data packet according to a processing mode corresponding to the service data packet forwarding mode according to the service data packet forwarding mode corresponding to the local service server.
  • step S301 specifically includes:
  • the MEC server When receiving the service data packet sent by the local service server, the MEC server queries the local service server from the preset data forwarding information table according to the IP address of the local service server carried in the service data packet.
  • the service data packet forwarding mode corresponding to the IP address determines the forwarding mode of the service data packet corresponding to the local service server.
  • step S302 specifically includes the following two situations:
  • Case 1 The service data packet forwarding mode corresponding to the local service server is a local data transmission mode.
  • the MEC server When the MEC server obtains the IP address of the remote service server from the service data packet, the MEC server modifies the format of the service data packet. And determining, by the uplink bearer, the modified service data packet by using the uplink bearer to transmit the modified service data packet to the remote service server; or
  • the MEC server determines The downlink bearer used for transmitting the service data packet to the UE, and sending the service data packet by using the downlink bearer.
  • Case 2 The service data packet forwarding mode corresponding to the local service server is a local data termination mode.
  • the MEC server determines that the service data packet forwarding mode corresponding to the local service server is the local data termination mode, the MEC server determines that the service data packet needs to be sent to the UE;
  • the MEC server obtains the IP address of the UE from the service data packet, and determines a downlink bearer for transmitting the service data packet to the UE according to the IP address of the UE, and sends the service datagram by using the downlink bearer.
  • the message is sent to the base station, and the service data packet is sent by the base station to the UE.
  • the MEC server modifies the format of the service data packet, and determines an uplink bearer for transmitting the modified service data packet to the remote service server, and the uplink bearer is transmitted through the uplink bearer.
  • Sending the modified service data packet specifically includes:
  • the MEC server After the MEC server obtains the IP address of the UE according to the agreed format from the payload Payload of the service data packet sent by the local service server, the MEC server strips the IP address of the UE and constructs a new service data packet.
  • the MEC server obtains an access point name APN information corresponding to an IP address of the local service server and an IP address of the remote service server according to a preset data forwarding information table, and determines the APN and the APN.
  • the uplink bearer corresponding to the UE sends the new service data packet to the system architecture evolution gateway SAE-GW, and the SAE-GW sends the new service data packet to the remote service server.
  • the MEC server determines that the APN corresponds to the UE. If there are multiple bearers, the bearer can be further selected according to the Quality of Service (QoS) attribute.
  • QoS Quality of Service
  • the service data packet forwarding mode corresponding to the local service server is a local data via mode
  • the target IP address obtained by the MEC server from the service data packet is a UE
  • the MEC server determines a downlink bearer for transmitting the service data packet to the UE, and sends the service data packet by using the downlink bearer, specifically:
  • the MEC server queries the bearer information corresponding to the UE from the pre-stored correspondence table between the IP address of the UE and the bearer according to the IP address of the UE obtained from the service data packet;
  • the MEC server pre-stores the corresponding relationship table between the IP address of the UE and the bearer, for example, the MEC server can obtain the correspondence between the IP address and the bearer of the UE by listening to the signaling and service data of the S1 interface, and Save in a local file.
  • the MEC server determines, according to the bearer information, a downlink bearer for transmitting the service data packet to the UE, and sends the service data packet to the base station by using the downlink bearer, where the base station sends the service data packet to the UE.
  • the MEC server when the MEC server determines that the service data packet forwarding mode corresponding to the local service server is the local data termination mode, the MEC server obtains the IP address of the UE from the service data packet, and Determining, according to the IP address of the UE, a process for transmitting a service data packet to the downlink bearer of the UE, for example, the MEC server can obtain the correspondence between the IP address of the UE and the bearer by listening to the signaling and service data of the S1 interface. Relationship, and in turn, determining a downlink bearer for transmitting a service data message to the UE.
  • the application of the data transmission method shown in FIG. 3 is that after the service data is processed by the local service server, the local service server sends the service data packet to the MEC server, and then the MEC server determines the service data report corresponding to the local service server.
  • the packet forwarding mode is performed, and the service data packet is processed and sent in a processing manner corresponding to the service data packet forwarding mode.
  • the data transmission method also includes the following process:
  • the MEC server When the MEC server receives the service data packet forwarded by the SAE-GW, the MEC server obtains the target IP address from the service data packet;
  • the MEC server When it is determined that the target IP address is the IP address of the local service server, the MEC server sends the received service data packet to the local service server;
  • the service data sent by the remote service server can be sent to the UE after being processed by the local service server.
  • the MEC server determines, according to the IP address of the UE, a downlink bearer for transmitting a service data packet to the UE, and sending the receiving by using the downlink bearer.
  • the obtained service data packet is sent to the base station, and the base station sends the service data packet to the UE. This case corresponds to the through mode described above.
  • an embodiment of the present invention further provides a data transmission method, where the method includes:
  • the IP address of the local service server is used as the source IP address, and the IP address of the remote service server is used as the destination IP address in the service datagram.
  • the IP address of the user equipment UE is added to the Payload of the service data packet according to the agreed format, and the new service data packet is constructed.
  • the local service server sends the new service data packet to the mobile edge computing MEC server, and the MEC server determines the service data packet corresponding to the local service server according to the IP address of the local service server. And forwarding the mode, and processing the service data packet according to the processing mode corresponding to the service data packet forwarding mode according to the service data packet forwarding mode corresponding to the local service server.
  • the local service server corresponds to the local data via mode.
  • the method further includes:
  • the local service server After receiving the service data packet, the local service server generates a service data packet to be sent, and uses the IP address of the local service server as the source IP address and the IP address of the UE as the target IP address. After being carried in the generated service data packet, the MEC server sends the received service data packet to the UE.
  • the following describes the process of processing the format of service data packets by the network entity during the transmission of user plane service data packets.
  • Figure 5a shows the processing of the format of the service data packet by the UE and the local service server when the service data packet is transmitted between the UE and the local service server.
  • the IP address of IP is allocated to the UE 01, and the connection for the UE APN2, in order for the IP address allocated to the UE IP 02 , the IP address of the local service server accessed by the UE at this time is IP 2 .
  • the format of the service data packet obtained by the UE processing the service data packet format is shown in the left part of the arrow in FIG. 5a, and the IP 01 corresponds to the UE.
  • the current IP address (ie, the source IP address), and IP 2 corresponds to the IP address (ie, the destination IP address) of the local service server currently accessed by the UE.
  • the right part of the arrow indicates the format of the service data packet obtained by the local service server after processing the format of the service data packet when the local service server sends the service data packet to the UE.
  • 2 corresponds to the IP address of the local service server (ie, the source IP address), and IP 01 indicates the IP address (ie, the target IP address) of the UE currently accessed by the local service server.
  • the service data packet sent by the UE is received by the local service server discussed in FIG. 5a, the service data packet is sent to the remote service server, and the local service server and the MEC server respectively perform the service.
  • the processing of the format of the data message is shown in Figure 5b.
  • IP 5 the process of processing the format of the service data packet by the local service server is:
  • the IP address of the local service server ie, IP 2
  • IP address of the remote service server ie, IP 5
  • the IP address of the UE ie, IP 01
  • the format of the service data packet after processing is shown in the left part of the arrow in Figure 5b.
  • IP 2 It should be on the local service server IP address (i.e., source IP address), IP 5 should teleservice server of the IP address (i.e., destination IP address), Payload 01 carried in an IP corresponding to the IP address of the UE.
  • the MEC server processes the service data packet according to the agreed format in the Payload of the service data packet sent by the local service server.
  • the IP address of the UE ie, IP 01
  • the IP address of the UE is stripped, a new service data packet is constructed, and the new service data packet is sent to the SAE-GW, and the new SAE-GW is used by the SAE-GW.
  • the service data packet is sent to the remote service server.
  • the format of the new service data packet is shown in the right part of the arrow in Figure 5b.
  • a data transmission apparatus includes:
  • the determining unit 61 is configured to: when receiving the service data packet sent by the local service server, determine, according to the preset data forwarding information table, a service data packet forwarding mode corresponding to the local service server; where the service data is The packet forwarding mode is a local data termination mode, which is used to indicate that the service data packet is transmitted between the user equipment UE and the local service server, or the service data packet forwarding mode is a local data transmission mode to indicate the service.
  • the data packet needs to be processed by the local service server when transmitting between the UE and the remote service server.
  • the processing unit 62 is configured to process the service data packet by using a processing manner corresponding to the service data packet forwarding mode according to the service data packet forwarding mode corresponding to the local service server.
  • the determining unit 61 is specifically configured to:
  • the service data packet forwarding mode determines the forwarding mode of the service data packet corresponding to the local service server.
  • the processing unit 62 is specifically configured to:
  • the service data packet forwarding mode corresponding to the local service server is a local data access mode
  • the target IP address obtained from the service data packet is an IP address of the remote service server
  • the service data packet is used. Modifying the format, and determining an uplink bearer for transmitting the modified service data packet to the remote service server, and sending the modified service data packet by using the uplink bearer; or
  • the downlink bearer of the UE is sent, and the service data packet is sent by using the downlink bearer.
  • the processing unit 62 modifies the format of the service data message and determines to transmit the
  • the modified service data packet is sent to the uplink bearer of the remote service server.
  • the modified service data packet is sent by the uplink bearer, it is specifically used to:
  • the bearer sends the new service data packet to the system architecture evolution gateway SAE-GW through the uplink bearer, and the SAE-GW sends the new service data packet to the remote service server.
  • the processing unit 62 determines a downlink bearer for transmitting the service data packet to the UE, and when the service data packet is sent by using the downlink bearer, specifically:
  • the processing unit 62 is further configured to:
  • the service data packet forwarding mode is the local data termination mode, it is determined that the service data packet needs to be sent to the UE;
  • the service data packet is sent by the base station to the UE.
  • the determining unit is further configured to: when receiving the service data packet forwarded by the system architecture evolution gateway SAE-GW, the MEC server obtains the target IP address from the service data packet, and determines the target a network entity corresponding to the IP address;
  • the processing unit 62 is further configured to: when the determining unit 61 receives the service data packet forwarded by the SAE-GW, and determines that the network entity corresponding to the target IP address in the service data packet is a local service server, The service data packet received by the determining unit is sent to the local service server; or, when the determining unit 61 receives the service data packet forwarded by the SAE-GW, and determines that the target IP address in the service data packet corresponds to
  • the network entity is the UE
  • the downlink bearer used for transmitting the service data packet to the UE is determined according to the IP address of the UE
  • the service data packet received by the determining unit is sent to the base station by using the downlink bearer, The base station sends the service data packet to the UE.
  • an embodiment of the present invention provides a service data transmission apparatus, including:
  • the processing unit 71 is configured to carry the service data packet to the remote service server, and use the IP address of the device as the source IP address and the IP address of the remote service server as the destination IP address in the service data packet. , And adding the IP address of the user equipment UE to the Payload of the service data packet according to the agreed format, and constructing a new service data packet;
  • the sending unit 72 is configured to send the new service data packet to the mobile edge computing MEC server, where the MEC server determines the service data packet forwarding mode corresponding to the device according to the IP address of the device, and according to The service data packet forwarding mode corresponding to the device is processed after the service data packet is processed in a processing manner corresponding to the service data packet forwarding mode.
  • the processing unit 71 is further configured to:
  • the sending unit 72 is further configured to: send the service data packet that is generated and carries the IP address of the device and the IP address of the UE to the MEC server, and the MEC server sends the received service data packet to the UE. .
  • a data transmission system provided by the embodiment of the present invention includes the foregoing data transmission device on the MEC server side, and a data transmission device on the local service server side.
  • the foregoing functional modules can be implemented by a physical device such as a hardware processor having functions of sending, processing, and the like.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that the computer Or performing a series of operational steps on other programmable devices to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing a block in a flow or a flow and/or block diagram of the flowchart Or the steps of the function specified in multiple boxes.

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Abstract

本发明公开了一种数据传输方法、装置及系统,用以拓宽MEC的应用场景,使得业务数据不仅可以终结于本地业务平台,还可以经由本地业务平台处理后,再交由远端业务平台处理,或者业务数据通过远端业务平台处理后,再交由本地业务平台处理。该数据传输方法包括:MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。

Description

一种数据传输方法、装置及系统
本申请要求在2016年3月7日提交中国专利局、申请号为201610127948.2、发明名称为“一种数据传输方法、装置及系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域,尤其涉及一种数据传输方法、装置及系统。
背景技术
现有的网络架构中,业务平台部署在核心网络之后。随着5G网络概念和业务需求的提出,移动边缘计算(Mobile Edge Compute,MEC)技术应运而生。通过MEC技术,业务平台可以靠近移动边缘部署。
根据业务平台的实际部署位置,将业务服务器划分为本地业务服务器和远端业务服务器,其中,本地业务服务器部署在接入网侧(例如基站侧),远端业务服务器部署在核心网侧,远端业务服务器意指非本地部署的业务服务器。由于业务服务器的本地部署,可使得MEC服务器能够实现本地业务的分流,从而用户设备(User Equipment,UE)可以就近访问本地业务,不需要通过传输网和核心网,因此可以降低传输网的带宽消耗,降低业务延迟,提高用户感知。
现有的数据传输模式可分为以下两种:一种是直通模式,相对于远端业务,即用户面数据直接在UE与远端业务服务器之间进行传输,没有本地业务服务器的参与;另一种是分流模式,相对于本地业务,即用户面数据仅在UE与本地业务服务器之间传输,没有远端业务服务器的参与。然而,在实际应用中,还存在其他一些特定场景(例如视频回传与分析场景),在这些场景中,要求业务数据经本地业务服务器处理后,再交由远端业务服务器处理,若采用上述现有的数据传输模式,无法满足特定场景的需求。
综上所述,现有的数据传输方法仅适用于有限的MEC应用场景,无法满足例如视频回传与分析等特定的MEC应用场景。
发明内容
本发明实施例提供了一种数据传输方法、装置及系统,用以拓宽MEC的应用场景,使得业务数据不仅可以终结于本地业务平台,还可以经由本地业务平台处理后,再交由远端业务平台处理,或者业务数据通过远端业务平台处理后,再交由本地业务平台处理。
在MEC服务器侧,本发明实施例提供的一种数据传输方法包括:
MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在用户设备UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
本发明实施例提供的该方法,MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式,进而根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送,从而有效拓宽了MEC的应用场景,使得业务数据不仅可以终结于本地业务平台,即业务数据只需经本地业务服务器处理后变可完成整个业务的处理过程,不需要远端业务服务器的参与;还可以经由本地业务平台处理后,再交由远端业务平台处理,或者业务数据通过远端业务平台处理后,再交由本地业务平台处理,之后发送给UE。
较佳地,所述MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定该本地业务服务器对应的业务数据报文转发模式,具体包括:
所述MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
较佳地,所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送,具体包括:
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文。
从而,可实现UE发送的业务数据能够经由本地业务服务器处理后,再交由远端业务服务器处理,或者,实现远端业务服务器发送的业务数据能够经由本地业务服务器处理后,再发送给UE。
较佳地,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文,具体包括:
所述MEC服务器从所述本地业务服务器发送的所述业务数据报文的净负荷(Payload)中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
所述MEC服务器根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的接入点名(Access Point Name,APN)信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关(System Architecture Evolution Gateway,SAE-GW),由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
较佳地,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文,具体包括:
所述MEC服务器根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
所述MEC服务器根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送,具体还包括:
当所述本地业务服务器对应的业务数据报文转发模式为本地数据终结模式时,所述MEC服务器确定需要将该业务数据报文发送给UE;
所述MEC服务器从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,该方法还包括:
所述MEC服务器当接收到SAE-GW转发的业务数据报文时,所述MEC服务器从该 业务数据报文中获取目标IP地址;
当确定该目标IP地址为本地业务服务器的IP地址时,所述MEC服务器将接收到的业务数据报文发送给本地业务服务器;或者,当确定该目标IP地址为UE的IP地址时,所述MEC服务器根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。
在本地业务服务器侧,本发明实施例提供的一种数据传输方法包括:
本地业务服务器当需要发送业务数据报文给远端业务服务器时,将所述本地业务服务器的IP地址作为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的Payload中增加UE的IP地址,构造成新的业务数据报文;
所述本地业务服务器将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述本地业务服务器的IP地址确定所述本地业务服务器对应的业务数据报文转发模式,并根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
较佳地,该方法还包括:
所述本地业务服务器接收MEC服务器转发的由远端业务服务器发送的业务数据报文;
所述本地业务服务器对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将所述本地业务服务器的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中后发送给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
在MEC服务器侧,本发明实施例提供的一种数据传输装置包括:
确定单元,用于当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在用户设备UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
处理单元,用于根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
较佳地,所述确定单元具体用于:
当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
较佳地,所述处理单元具体用于:
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为UE的IP地址时,确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文。
较佳地,所述处理单元对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文时,具体用于:
从所述本地业务服务器发送的所述业务数据报文的Payload中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的APN信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关SAE-GW,由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
较佳地,所述处理单元确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文时,具体用于:
根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,所述处理单元还用于:
当所述业务数据报文转发模式为本地数据终结模式时,确定需要将该业务数据报文发送给UE;
从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,所述确定单元还用于:当接收到系统架构演进网关SAE-GW转发的业务数据报文时,所述MEC服务器从该业务数据报文中获取目标IP地址,并确定该目标IP地址对应的网络实体;
所述处理单元还用于:当所述确定单元接收到SAE-GW转发的业务数据报文,并确定 该业务数据报文中的目标IP地址对应的网络实体为本地业务服务器时,将所述确定单元接收到的业务数据报文发送给本地业务服务器;或者,当所述确定单元接收到SAE-GW转发的业务数据报文,并确定该业务数据报文中的目标IP地址对应的网络实体为UE时,根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述确定单元接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。
在本地业务服务器侧,本发明实施例提供的一种数据传输装置包括:
处理单元,用于当需要发送业务数据报文给远端业务服务器时,将本装置的IP地址作为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的Payload中增加用户设备UE的IP地址,构造成新的业务数据报文;
发送单元,用于将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述装置的IP地址确定所述装置对应的业务数据报文转发模式,并根据所述装置对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
较佳地,所述处理单元还用于:
接收MEC服务器转发的由远端业务服务器发送的业务数据报文,对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将本装置的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中;
所述发送单元还用于:发送所述在生成的且携带本装置的IP地址和UE的IP地址的业务数据报文给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
本发明实施例提供的一种数据传输系统,包括上述在MEC服务器侧的数据传输装置,以及在本地业务服务器侧的数据传输装置。
附图说明
图1为本发明实施例提供的一种系统网络架构及业务数据流向示意图;
图2为本发明实施例提供的一种视频回传与分析的应用场景图;
图3为本发明实施例提供的一种数据传输方法的流程示意图;
图4为本发明实施例提供的另一种数据传输方法的流程示意图;
图5a为本发明实施例提供的一种数据传输过程中业务数据报文格式的处理过程示意图;
图5b为本发明实施例提供的另一种数据传输过程中业务数据报文格式的处理过程示意图;
图6为本发明实施例提供的一种数据传输装置的结构示意图;
图7为本发明实施例提供的另一种数据传输装置的结构示意图。
具体实施方式
本发明实施例提供了一种数据传输方法、装置及系统,用以拓宽MEC的应用场景,使得业务数据不仅可以终结于本地业务平台,还可以经由本地业务平台处理后,再交由远端业务平台处理,或者业务数据通过远端业务平台处理后,再交由本地业务平台处理。
本发明实施例中,预先为MEC服务器配置本地业务模板信息,比如本地业务服务器IP地址、IP地址前缀等,该信息可以但不限于由操作管理(Operation Management,OM)实体进行配置。并且,本发明实施例还针对现有技术中无法满足特定的MEC应用场景(例如视频回传与分析场景)的问题,对于每一本地业务服务器,分别配置与该本地业务服务器对应的数据报文转发模式,该数据报文转发模式为本地数据终结模式或者本地数据经由模式,具体可参见表1所示的数据转发信息表。该数据转发信息表例如可以由OM实体针对每一本地业务服务器预先进行配置并保存在MEC服务器中。其中,数据转发信息表中的信息包括但不限于数据报文转发模式、远端业务服务器IP地址及远端业务归属的APN等,并且本地业务服务器和远端业务服务器不限于是一对一的关系。不同IP地址的本地业务服务器例如可以对应处理不同的本地业务。
表1数据转发信息表
Figure PCTCN2017071762-appb-000001
从而,MEC服务器当接收到本地业务服务器发送的用户面的业务数据报文后,根据上述预设的数据转发信息表,判断该本地业务服务器对应的业务数据报文转发模式,并根据该本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送,这样,使得业务数据不仅可以终结于本地业务平台,还可以经由本地业务平台处理后,再交由远端业务平台处理。
具体地,本发明实施例提供的系统网络架构及业务数据流向如图1所示。其中,MEC 服务器、演进型基站(e-NB)、本地业务服务器均部署在同一网络层次,即靠近移动边缘,并且MEC服务器分别与e-NB、本地业务服务器相连;在演进的分组核心网(Evolved Packet Core,EPC)侧,包括移动性管理实体(Mobility Management Entity,MME)、SAE-GW,EPC之后的远端业务服务器部署在更高的网络层次(如核心机房),并且MEC服务器串接在e-NB于EPC之间的S1接口上,MEC服务器与EPC之间通过传输网(如PTN网络)连接。
在图1所示的网络架构下,可实现三种双向的数据传输:
第一种:对应于图1中的数据流向1,其数据传输方向可表示为:UE<-->e-NB<-->MEC服务器<-->SAE-GW<-->远端业务服务器。即用户面的业务数据报文可以由UE开始,分别经过e-NB、MEC服务器、SAE-GW进行传输,最终发送给远端业务服务器;用户面的业务数据报文也可以由远端业务服务器开始,分别经过SAE-GW、MEC服务器、e-NB进行传输,最终发送给UE。
该数据传输过程仅涉及远端业务的处理,将该传输模式称为直通模式。具体执行过程如下:
对于UE发送的上行业务数据报文,UE访问的目标IP地址为PDN网络中的远端业务服务器的IP地址,则MEC服务器在接收到e-NB转发的由该UE发送的业务数据报文后,通过获取该业务数据报文中的源IP地址(这里为UE的IP地址)和目标IP地址,确定需要将该业务数据报文发送给远端业务服务器,从而,MEC服务器将该业务数据报文透传到公网SAE-GW,由SAE-GW将该业务数据报文发送给远端业务服务器。当然,MEC服务器在发送业务数据报文给SAE-GW之前,需要确定上行承载,进而通过该上行承载将该业务数据发送给SAE-GW。确定上行承载的过程,例如可以是MEC服务器通过监听S1接口的信令和业务数据,获得该UE的IP地址与承载的对应关系,进而确定用于传输业务数据报文给SAE-GW的上行承载。
对于远端业务服务器发送的下行业务数据报文,远端业务服务器访问的目标IP地址为UE的IP地址,则MEC服务器在接收到公网SAE-GW转发的由该远端业务服务器发送的业务数据报文后,通过获取该业务数据报文中的源IP地址(这里为远端业务服务器的IP地址)和目标IP地址,确定需要将该业务数据报文发送UE,从而,MEC服务器将该业务数据报文透传到e-NB,由e-NB将该业务数据报文发送给UE。当然,MEC服务器在发送业务数据报文给e-NB之前,也需要确定下行承载,进而通过该下行承载将该业务数据发送给e-NB。确定下行承载的过程,例如可以是MEC服务器通过监听S1接口的信令和业务数据,获得该UE的IP地址与承载的对应关系,进而确定用于传输业务数据报文给e-NB的下行承载。
第二种:对应于图1中的数据流向2,其数据传输方向可表示为:UE<-->e-NB<-->MEC 服务器<-->本地业务服务器。即用户面的业务数据报文可以由UE开始,分别经过e-NB、MEC服务器进行传输,最终发送给本地业务服务器;用户面的业务数据报文也可以由本地业务服务器开始,分别经过MEC服务器、e-NB进行传输,最终发送给UE。
第三种:对应于图1中的数据流向3,其数据传输方向可表示为:UE<-->e-NB<-->MEC服务器<-->本地业务服务器<-->MEC服务器<-->SAE-GW<-->远端业务服务器,即用户面的业务数据报文可以由UE开始,分别经过e-NB、MEC服务器进行传输发送给本地业务服务器,由本地业务服务器对业务数据进行处理后发送给MEC服务器,再由MEC服务器将业务数据报文发送给SAE-GW,由SAE-GW将业务数据报文最终发送给远端业务服务器进行处理;用户面的业务数据报文也可以由远端业务服务器开始,分别经过SAE-GW、MEC服务器发送给本地业务服务器进行处理,本地业务服务器对业务数据进行处理后再发送给MEC服务器,由MEC服务器将业务数据报文发送给e-NB,由e-NB将业务数据报文最终发送给UE。
该第三种传输方式可以应用于例如视频回传与分析等特定的MEC应用场景中。图2所示为视频回传与分析的应用场景。该场景下,LTE终端(摄像头)完成视频流的采集;视频流通过LTE网络(上行)回传至本地业务平台;本地业务平台对回传的视频流进行先行处理,包括编码转换、存储、管理、压缩、视频分析等。其中,本地业务平台可以配置事件(如移动的物体、丢失的孩子、行李等)并对其进行检测和通知,之后将事件、元数据、视频切片等处理后的数据传送给核心机房的远端业务平台。由于本地业务平台将高带宽的视频流转换为低带宽的事件、元数据、视频切片等,因此可以显著节省传输带宽。该场景可以广泛应用于公共安全、智慧城市等领域。
由于上述第二种和第三种数据传输过程的传输模式均可以称为是分流模式,下面将针对上述第二种和第三种分流模式下的数据传输方法进行详细地介绍。
在MEC服务器侧,参见图3,本发明实施例提供的一种数据传输方法,包括:
S301、MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
这里,所述预设的数据转发信息表,如上文所述,可以由OM实体预先针对每一本地业务服务器进行配置后并保存在MEC服务器中,在此不再进行赘述。
S302、所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
较佳地,步骤S301具体包括:
所述MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
较佳地,步骤S302具体包括以下两种情况:
情况一:所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式。
在该本地数据经由模式下,所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文。
情况二:所述本地业务服务器对应的业务数据报文转发模式为本地数据终结模式。
MEC服务器当确定所述本地业务服务器对应的业务数据报文转发模式为本地数据终结模式,所述MEC服务器确定需要将该业务数据报文发送给UE;
所述MEC服务器从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,在上述情况一中,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文,具体包括:
所述MEC服务器从所述本地业务服务器发送的所述业务数据报文的净负荷Payload中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
所述MEC服务器根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的接入点名APN信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关SAE-GW,由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
此外,需要补充说明的是,所述MEC服务器在获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的APN信息后,若确定该APN下的与该UE对应 的承载有多个,则可以根据业务服务质量(Quality of Service,QoS)属性进一步选择承载。
较佳地,在上述情况一中,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文,具体包括:
所述MEC服务器根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
这里,所述MEC服务器预先保存的该UE的IP地址与承载的对应的关系表,例如可以由MEC服务器通过监听S1接口的信令和业务数据,获得UE的IP地址与承载的对应关系,并保存在本地文件中。
所述MEC服务器根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,上述情况二中,MEC服务器当确定所述本地业务服务器对应的业务数据报文转发模式为本地数据终结模式时,MEC服务器从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载的过程,例如可以由MEC服务器通过监听S1接口的信令和业务数据,获得该UE的IP地址与承载的对应关系,进而,确定用于传输业务数据报文给该UE的下行承载。
此外,图3所示的数据传输方法的应用前提是业务数据流经本地业务服务器处理后,本地业务服务器将业务数据报文发送给MEC服务器,进而由MEC服务器确定本地业务服务器对应的业务数据报文转发模式,并采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。当然,数据传输方法还包括以下过程:
MEC服务器当接收到SAE-GW转发的业务数据报文时,所述MEC服务器从该业务数据报文中获取目标IP地址;
当确定该目标IP地址为本地业务服务器的IP地址时,所述MEC服务器将接收到的业务数据报文发送给本地业务服务器;
从而,可以实现远端业务服务器发送的业务数据先经由本地业务服务器处理后发送给UE。
或者,当确定该目标IP地址为UE的IP地址时,所述MEC服务器根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。这种情况即对应于上文中所述的直通模式。
在本地业务服务器侧,参见图4,本发明实施例还提供了一种数据传输方法,该方法包括:
S401、本地业务服务器当需要发送业务数据报文给远端业务服务器时,将所述本地业务服务器的IP地址作为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的Payload中增加用户设备UE的IP地址,构造成新的业务数据报文;
S402、所述本地业务服务器将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述本地业务服务器的IP地址确定所述本地业务服务器对应的业务数据报文转发模式,并根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
可见,图4所示的方法中,本地业务服务器对应于本地数据经由模式。
基于图4所示的数据传输方法,该方法还包括:
所述本地业务服务器接收MEC服务器转发的由远端业务服务器发送的业务数据报文;
所述本地业务服务器对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将所述本地业务服务器的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中后发送给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
下面举例说明用户面业务数据报文传输过程中,网络实体对业务数据报文的格式的处理过程。
图5a所示为UE与本地业务服务器之间传输业务数据报文时,UE和本地业务服务器分别对业务数据报文的格式的处理过程。
假设UE同时与APN1和APN2建立了连接,并且SAE-GW针对该UE与APN1的连接,为该UE分配的IP地址为IP01,针对该UE与APN2的连接,为该UE分配的IP地址为IP02,UE此时访问的本地业务服务器的IP地址为IP2。则该UE发送业务数据报文给该本地业务服务器时,该UE对业务数据报文的格式进行处理后所得的业务数据报文格式参见图5a中箭头左侧部分所示,IP01对应该UE当前的IP地址(即源IP地址),IP2对应该UE当前访问的本地业务服务器的IP地址(即目标IP地址)。
相应地,在图5a中,箭头右侧部分表示该本地业务服务器发送业务数据报文给该UE时,该本地业务服务器对业务数据报文的格式进行处理后所得的业务数据报文格式,IP2对应该本地业务服务器的IP地址(即源IP地址),IP01表示该本地业务服务器当前访问的该UE的IP地址(即目标IP地址)。
结合图5a中论述的本地业务服务器接收到UE发送的业务数据报文后,对业务数据进行相应处理后,将业务数据报文发送给远端业务服务器时,本地业务服务器和MEC服务器分别对业务数据报文的格式的处理过程参见图5b所示。
假设该本地业务服务器需要访问的远端业务服务器的IP地址为IP5,则该本地业务服 务器发送业务数据报文给MEC服务器时,该本地业务服务器对业务数据报文的格式的处理过程为:将该本地业务服务器的IP地址(即IP2)作为源IP地址以及将该远端业务服务器的IP地址(即IP5)作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的Payload中增加UE的IP地址(即IP01),构造成新的业务数据报文,处理后所得的业务数据报文格式参见图5b中箭头左侧部分所示,IP2对应该本地业务服务器的IP地址(即源IP地址),IP5对应该远端业务服务器的IP地址(即目标IP地址),Payload中携带的IP01对应UE的IP地址。
相应地,MEC服务器接收到该本地业务服务器发送的业务数据报文后,对该业务数据报文的处理过程为:从该本地业务服务器发送的该业务数据报文的Payload中根据约定的格式获取UE的IP地址(即IP01)后将该UE的IP地址剥离,构造出新的业务数据报文,进而将该新的业务数据报文发送给SAE-GW,由SAE-GW将该新的业务数据报文发送给远端业务服务器,其中该新的业务数据报文的格式参见图5b中箭头右侧部分所示。
在MEC服务器侧,参见图6,本发明实施例提供的一种数据传输装置,包括:
确定单元61,用于当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在用户设备UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
处理单元62,用于根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
较佳地,所述确定单元61具体用于:
当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
较佳地,所述处理单元62具体用于:
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为UE的IP地址时,确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文。
较佳地,所述处理单元62对该业务数据报文的格式进行修改,并确定用于传输所述 修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文时,具体用于:
从所述本地业务服务器发送的所述业务数据报文的净负荷Payload中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的接入点名APN信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关SAE-GW,由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
较佳地,所述处理单元62确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文时,具体用于:
根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,所述处理单元62还用于:
当所述业务数据报文转发模式为本地数据终结模式时,确定需要将该业务数据报文发送给UE;
从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
较佳地,所述确定单元还用于:当接收到系统架构演进网关SAE-GW转发的业务数据报文时,所述MEC服务器从该业务数据报文中获取目标IP地址,并确定该目标IP地址对应的网络实体;
所述处理单元62还用于:当所述确定单元61接收到SAE-GW转发的业务数据报文,并确定该业务数据报文中的目标IP地址对应的网络实体为本地业务服务器时,将所述确定单元接收到的业务数据报文发送给本地业务服务器;或者,当所述确定单元61接收到SAE-GW转发的业务数据报文,并确定该业务数据报文中的目标IP地址对应的网络实体为UE时,根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述确定单元接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。
在本地业务服务器侧,参见图7,本发明实施例提供了一种业务数据传输装置,包括:
处理单元71,用于当需要发送业务数据报文给远端业务服务器时,将本装置的IP地址作为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中, 并按照约定的格式在该业务数据报文的Payload中增加用户设备UE的IP地址,构造成新的业务数据报文;
发送单元72,用于将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述装置的IP地址确定所述装置对应的业务数据报文转发模式,并根据所述装置对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
较佳地,所述处理单元71还用于:
接收MEC服务器转发的由远端业务服务器发送的业务数据报文,对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将本装置的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中;
所述发送单元72还用于:发送所述在生成的且携带本装置的IP地址和UE的IP地址的业务数据报文给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
本发明实施例提供的一种数据传输系统,包括上述在MEC服务器侧的数据传输装置,以及在本地业务服务器侧的数据传输装置。
本发明实施例中,可通过具有发送、处理等功能的硬件处理器等实体设备实现上述各功能模块。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (19)

  1. 一种数据传输方法,其特征在于,该方法包括:
    移动边缘计算MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在用户设备UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
    所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
  2. 根据权利要求1所述的方法,其特征在于,所述MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定该本地业务服务器对应的业务数据报文转发模式,具体包括:
    所述MEC服务器当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
  3. 根据权利要求1所述的方法,其特征在于,所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送,具体包括:
    当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
    当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文。
  4. 根据权利要求3所述的方法,其特征在于,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,所述MEC服务器对该业务数据报文的格式 进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文,具体包括:
    所述MEC服务器从所述本地业务服务器发送的所述业务数据报文的净负荷Payload中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
    所述MEC服务器根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的接入点名APN信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关SAE-GW,由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
  5. 根据权利要求3所述的方法,其特征在于,当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且所述MEC服务器从所述业务数据报文中获取的目标IP地址为UE的IP地址时,所述MEC服务器确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文,具体包括:
    所述MEC服务器根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
    所述MEC服务器根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
  6. 根据权利要求1所述的方法,其特征在于,所述MEC服务器根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送,具体还包括:
    当所述本地业务服务器对应的业务数据报文转发模式为本地数据终结模式时,所述MEC服务器确定需要将该业务数据报文发送给UE;
    所述MEC服务器从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
  7. 根据权利要求1~6任一权项所述的方法,其特征在于,该方法还包括:
    所述MEC服务器当接收到系统架构演进网关SAE-GW转发的业务数据报文时,所述MEC服务器从该业务数据报文中获取目标IP地址;
    当确定该目标IP地址为本地业务服务器的IP地址时,所述MEC服务器将接收到的业务数据报文发送给本地业务服务器;或者,当确定该目标IP地址为UE的IP地址时,所述MEC服务器根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。
  8. 一种数据传输方法,其特征在于,该方法包括:
    本地业务服务器当需要发送业务数据报文给远端业务服务器时,将所述本地业务服务器的IP地址作为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的净负荷Payload中增加用户设备UE的IP地址,构造成新的业务数据报文;
    所述本地业务服务器将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述本地业务服务器的IP地址确定所述本地业务服务器对应的业务数据报文转发模式,并根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
  9. 根据权利要求8所述的方法,其特征在于,该方法还包括:
    所述本地业务服务器接收MEC服务器转发的由远端业务服务器发送的业务数据报文;
    所述本地业务服务器对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将所述本地业务服务器的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中后发送给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
  10. 一种数据传输装置,其特征在于,该装置包括:
    确定单元,用于当接收到本地业务服务器发送的业务数据报文时,根据预设的数据转发信息表,确定与该本地业务服务器对应的业务数据报文转发模式;其中,所述业务数据报文转发模式为本地数据终结模式,用以指示业务数据报文仅在用户设备UE与本地业务服务器之间传输,或者,所述业务数据报文转发模式为本地数据经由模式,用以指示业务数据报文在UE与远端业务服务器之间传输时需要经过本地业务服务器进行处理;
    处理单元,用于根据所述本地业务服务器对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文进行处理后发送。
  11. 根据权利要求10所述的装置,其特征在于,所述确定单元具体用于:
    当接收到本地业务服务器发送的业务数据报文时,根据该业务数据报文中携带的本地业务服务器的IP地址,从预设的数据转发信息表中查询与该本地业务服务器的IP地址对应的业务数据报文转发模式,确定该本地业务服务器对应的业务数据报文转发模式。
  12. 根据权利要求10所述的装置,其特征在于,所述处理单元具体用于:
    当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为远端业务服务器的IP地址时,对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文;或者,
    当所述本地业务服务器对应的业务数据报文转发模式为本地数据经由模式,并且从所述业务数据报文中获取的目标IP地址为UE的IP地址时,确定用于传输该业务数据报文 给该UE的下行承载,并通过该下行承载发送该业务数据报文。
  13. 根据权利要求12所述的装置,其特征在于,所述处理单元对该业务数据报文的格式进行修改,并确定用于传输所述修改后的业务数据报文给远端业务服务器的上行承载,通过该上行承载发送所述修改后的业务数据报文时,具体用于:
    从所述本地业务服务器发送的所述业务数据报文的净负荷Payload中根据约定的格式获取UE的IP地址后将该UE的IP地址剥离,构造出新的业务数据报文;
    根据预设的数据转发信息表,获取与所述本地业务服务器的IP地址及所述远端业务服务器的IP地址相对应的接入点名APN信息,并确定该APN下的与该UE对应的上行承载,通过该上行承载发送所述新的业务数据报文给系统架构演进网关SAE-GW,由SAE-GW将所述新的业务数据报文发送给远端业务服务器。
  14. 根据权利要求12所述的装置,其特征在于,所述处理单元确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文时,具体用于:
    根据从所述业务数据报文中获取的所述UE的IP地址,从预先保存的该UE的IP地址与承载的对应的关系表中查询与该UE对应的承载信息;
    根据该承载信息确定用于传输该业务数据报文给该UE的下行承载,并通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
  15. 根据权利要求10所述的装置,其特征在于,所述处理单元还用于:
    当所述业务数据报文转发模式为本地数据终结模式时,确定需要将该业务数据报文发送给UE;
    从所述业务数据报文中获取UE的IP地址,并根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,通过该下行承载发送该业务数据报文给基站,由基站将该业务数据报文发送给所述UE。
  16. 根据权利要求10~15任一权项所述的装置,其特征在于,所述确定单元还用于:当接收到系统架构演进网关SAE-GW转发的业务数据报文时,所述MEC服务器从该业务数据报文中获取目标IP地址,并确定该目标IP地址对应的网络实体;
    所述处理单元还用于:当所述确定单元接收到SAE-GW转发的业务数据报文,并确定该业务数据报文中的目标IP地址对应的网络实体为本地业务服务器时,将所述确定单元接收到的业务数据报文发送给本地业务服务器;或者,当所述确定单元接收到SAE-GW转发的业务数据报文,并确定该业务数据报文中的目标IP地址对应的网络实体为UE时,根据该UE的IP地址,确定用于传输业务数据报文给该UE的下行承载,并通过该下行承载发送所述确定单元接收到的业务数据报文给基站,由基站将该业务数据报文发送给该UE。
  17. 一种业务数据传输装置,其特征在于,该装置包括:
    处理单元,用于当需要发送业务数据报文给远端业务服务器时,将本装置的IP地址作 为源IP地址以及将远端业务服务器的IP地址作为目标IP地址携带在业务数据报文中,并按照约定的格式在该业务数据报文的净负荷Payload中增加用户设备UE的IP地址,构造成新的业务数据报文;
    发送单元,用于将所述新的业务数据报文发送给移动边缘计算MEC服务器,由所述MEC服务器根据所述装置的IP地址确定所述装置对应的业务数据报文转发模式,并根据所述装置对应的业务数据报文转发模式,采取与该业务数据报文转发模式对应的处理方式对所述业务数据报文处理后发送。
  18. 根据权利要求17所述的装置,其特征在于,所述处理单元还用于:
    接收MEC服务器转发的由远端业务服务器发送的业务数据报文,对接收到业务数据报文进行处理后,生成需要发送的业务数据报文,并将本装置的IP地址作为源IP地址以及将UE的IP地址作为目标IP地址,携带在所述生成的业务数据报文中;
    所述发送单元还用于:发送所述在生成的且携带本装置的IP地址和UE的IP地址的业务数据报文给MEC服务器,由MEC服务器将收到的业务数据报文发送给UE。
  19. 一种数据传输系统,其特征在于,该系统包括权利要求10~16任一权项所述的装置,以及权利要求17或18所述的装置。
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