CN108809853A - Message transmitting method and edge calculations device - Google Patents
Message transmitting method and edge calculations device Download PDFInfo
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- CN108809853A CN108809853A CN201811012553.3A CN201811012553A CN108809853A CN 108809853 A CN108809853 A CN 108809853A CN 201811012553 A CN201811012553 A CN 201811012553A CN 108809853 A CN108809853 A CN 108809853A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/825—Involving tunnels, e.g. MPLS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2483—Traffic characterised by specific attributes, e.g. priority or QoS involving identification of individual flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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Abstract
A kind of message transmitting method of disclosure offer and edge calculations device, edge calculations device is for forwarding the BBU in LTE network and the message between EPC, wherein BBU and edge calculations device are deployed in local, and EPC is deployed in distal end.Method includes：Message is received, if the message received is the GTP data messages that BBU is sent to EPC, obtains the mailing address of the IP datagram text encapsulated in GTP data messages；The storage class of the data in GTP data messages is identified according to the mailing address；If the storage class identified is that only need to be stored in local, which is sent directly to local server.In this way, local subscriber apparatus can be made to be sent to the data of local server not by the EPC of distal end, so as to avoid the occupancy to transmission network bandwidth.
Description
Technical field
This disclosure relates to field of communication technology, in particular to a kind of message transmitting method and edge calculations device.
Background technology
In the network of large enterprise, group including strange land branch, user equipment (User Equipment, UE)
It is typically to pass through long term evolution (Long Term Evolution, LTE) network communication with server.LTE network includes client
Terminal device (Customer Premise Equipment, CPE), remote radio unit (RRU) (Radio Remote Unit, RRU),
Baseband processing unit (Baseband Unit, BBU) and Evolved Packet Core (Evolved Packet Core, EPC).Its
In, CPE, RRU, BBU and EPC are communicated to connect successively, and user equipment accesses LTE network by CPE, eventually by EPC and service
Device communicates.
Equipment in the lte networks is led to based on GPRS Tunnel Protocol (GPRS Tunneling Protocol, GTP)
Letter, thus, the data that server is sent to user equipment need to first pass through EPC and carry out GTP encapsulation and could pass in the lte networks
Defeated, the data that user equipment is sent to server need just be transferred to by EPC releasing GTP encapsulation when leaving LTE network
External network.
And in large enterprise, group, EPC is typically deployed at general headquarters, and in the case, the local of each branch is used
All communication datas between family equipment and local server are sent to the EPC of general headquarters, then are transmitted back to local.In this way, this
Section communication data will pass through in a network to be transmitted twice, occupies massive band width.
Invention content
In view of this, the disclosure is designed to provide a kind of message transmitting method, device and edge calculations equipment, so that
Partially improve the above problem.
In order to achieve the above object, the disclosure adopts the following technical scheme that：
In a first aspect, the disclosure provides a kind of message transmitting method, it is applied to edge calculations device, the edge calculations dress
Set the message for forwarding the BBU in LTE network and between EPC, wherein the BBU and the edge calculations device are deployed in
Local, the EPC is deployed in distal end；The method includes：
Message is received, if the message received is the GTP data messages that the BBU is sent to the EPC, described in acquisition
The mailing address of the IP datagram text encapsulated in GTP data messages；
The storage class of the data in the GTP data messages is identified according to the mailing address；
If the storage class identified is that only need to be stored in local, the IP datagram text is sent directly to local
Server.
Second aspect, the disclosure also provides a kind of edge calculations device, for forwarding the BBU in LTE network and between EPC
Message, wherein the BBU and the edge calculations device are deployed in local, and the EPC is deployed in distal end；Described device packet
It includes：
Receiving module, for receiving message, if the message received is the GTP datagrams that the BBU is sent to the EPC
Text then obtains the mailing address of the IP datagram text encapsulated in the GTP data messages；
Type identification module, the storage class for identifying the data in the GTP data messages according to the mailing address
Type；
Sending module, for the storage class identified be only need to be stored in local in the case of, by the IP data
Message is sent directly to local server.
Compared to the prior art, the disclosure has the advantages that：
The disclosure provides a kind of message transmitting method and edge calculations device, by local disposition edge calculations device,
The GTP data messages that BBU is sent to EPC are intercepted, it should according to the identification of the mailing address of the IP datagram text encapsulated in GTP data messages
The storage class of data in GTP data messages will if the storage class of the data identified is that only need to be stored in local
The IP datagram text is sent directly to local server, need not pass through to make this be sent to the data of local server on the ground
The EPC of distal end avoids data and transmits the occupancy to network bandwidth twice in a network.
Description of the drawings
In order to illustrate more clearly of the technical solution of the disclosure, letter will be made to attached drawing needed in the embodiment below
It singly introduces, it should be understood that the following drawings illustrates only some embodiments of the disclosure, therefore is not construed as to range
It limits, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other relevant attached drawings.
Fig. 1 is a kind of schematic diagram of networking in the prior art；
Fig. 2 is a kind of schematic diagram for networking communicated based on LTE network that the disclosure provides；
Fig. 3 is a kind of block diagram for edge calculations device that the disclosure provides；
Fig. 4 is a kind of flow diagram for message transmitting method that the disclosure provides；
Fig. 5 is the another flow diagram for the message transmitting method that the disclosure provides；
Fig. 6 is the another flow diagram for the message transmitting method that the disclosure provides；
Fig. 7 is the schematic diagram of the configuration information table in a kind of specific example that the disclosure provides；
Fig. 8 is a kind of functional block diagram for edge calculations device that the disclosure provides.
Icon：10,20- networkings；11,21- far-end servers；12,22- local servers；13,231,232- local users
Equipment；141,241-CPE；142,242-RRU；143,243-BBU；144,244-EPC；30- edge calculations devices；31- is stored
Device；311- receiving modules；312- type identification modules；313- sending modules；314- tunnel information preserving modules；Believe in the tunnels 315-
Cease update module；316- package modules；32- processors；33- communication units.
Specific implementation mode
In the networking of enterprise, group including strange land branch, clothes have been usually deployed in each branch and general headquarters
Business device and user equipment, data interaction can be carried out between these servers and user equipment by LTE network.Wherein, it services
It needs to carry out Signalling exchange with the EPC in LTE network when device and user equipment access LTE network, server passes to user and sets
Standby data, which need to first pass through EPC and are packaged, enters back into LTE network transmission, and the data needs of server are given on user equipment
LTE network can just be left by being first transmitted to EPC and being decapsulated, thus need to dispose EPC in the lte networks.
In the related art, it will usually dispose an EPC in the lte networks, which is typically deployed at general headquarters.
Such as shown in Fig. 1, it includes that the enterprise of strange land branch, a kind of networking 10 in group are shown in the related technology to be
It is intended to, includes the local clothes for being deployed in the far-end server 11 of general headquarters and being deployed in each strange land branch in the networking 10
The local subscriber apparatus such as device 12 and camera, collector of being engaged in 13, wherein local server 12 and local subscriber apparatus 13 are to be directed to
For a certain strange land branch.
User equipment and server in the networking 10 are communicated by LTE network, and LTE network includes being deployed in each strange land point
CPE141, RRU142 and BBU143 of branch mechanism and the EPC144 for being deployed in general headquarters.Wherein user equipment is connect by CPE141
Enter LTE network, CPE141 is linked into corresponding RRU142, then is communicated with BBU143 by RRU142, eventually by BBU143 with
The EPC144 communications of general headquarters are deployed in, and then the data of required transmission are transferred to corresponding server.Accordingly, server to
The data that user equipment is sent, then be transferred to user along the path of EPC144 → BBU143 → RRU142 → CPE141 and set
It is standby.
It has been investigated that the data transmitted in enterprise, group would generally be related to it is following several：First, data only need
Local is stored in, or only locally applied, without uploading to the far-end server of general headquarters, for example, nonproductive relevant video
Monitoring information etc.；Second, not in the data of the local far-end server for preserving, need to being all uploaded to general headquarters, such as need general headquarters
The related data etc. analyzed of special instrument；Third needs the remote service that general headquarters are uploaded to while locally preserving
The data of device, such as produce relevant devices collect data etc..
Referring to Fig. 1, for the first above-mentioned and second of data, it is required for being saved in local data, it should
Data can be packaged GTP headings when entering LTE network by CPE141, it is then transmitted to distal end (for example, general headquarters)
EPC144, local server 12 is returned again to after being decapsulated by EPC144.Accordingly, when local subscriber apparatus 13 is from local
When server 12 obtains data, local server 12 needs the EPC144 for first transmitting the data to distal end to be packaged into GTP data,
Again local subscriber apparatus 13 is transferred to along LTE network.In this way, the interaction number between local subscriber apparatus 13 and local server 12
According to that can be transmitted twice in the lte networks, a large amount of network bandwidths is occupied, and increase the duration of data transmission, cause to use
Family experience is poor.
In view of the above-mentioned problems, in some embodiments, disposing independent EPC's respectively using in each strange land branch
Mode is improved.However, the construction cost and later maintenance cost of this mode are higher, and the BBU of each EPC management
It is uneven with the quantity of RRU, the waste of resource can be caused.
Based on the studies above, present disclose provides a kind of message transmitting method and edge calculations devices, with to local service
Interaction data between device and local subscriber apparatus is handled, so that the interaction data may not necessarily pass through in transmission process
The EPC of general headquarters, and only local transmit, to avoid the occupancy to network bandwidth, and reduce the interaction data in a network
Transmission duration.
For the defect present in above method, be inventor being obtained after putting into practice and carefully studying as a result,
Therefore, the discovery procedure of the above problem and the solution that hereinafter disclosure is proposed regarding to the issue above all should be hairs
The contribution that a person of good sense makes the disclosure during invention.
Below in conjunction with the attached drawing in the disclosure, the technical solution in the disclosure is clearly and completely described, is shown
So, described embodiment is a part of this disclosure embodiment, instead of all the embodiments.Usually retouched in attached drawing here
The component for the embodiment of the disclosure stated and shown can be arranged and be designed with a variety of different configurations.Therefore, below to
The detailed description to embodiment of the disclosure provided in attached drawing is not intended to limit claimed the scope of the present disclosure, but
It is merely representative of the selected embodiment of the disclosure.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work belongs to the range of disclosure protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
As shown in Fig. 2, being a kind of schematic diagram for networking 20 that the disclosure provides.In the networking 20, including LTE network with
And it is deployed in local local server 22 and local subscriber apparatus.Wherein, local subscriber apparatus is taken by LTE network with local
Business device 22 communicates.
Optionally, can be in the multiple local subscriber apparatus of local disposition in networking 20, the present embodiment in Fig. 2 to show
Local subscriber apparatus 231 and local subscriber apparatus 232 for illustrate, but it is to be understood that, local subscriber apparatus
Quantity is disposed not in this, as limitation.Optionally, the networking 20 can also include disposing far-end server 21 at the far end,
The local subscriber apparatus 23 and the far-end server 21 can be communicated by LTE network.
LTE network includes being deployed in local CPE241, RRU242, BBU243 and deployment EPC244 at the far end.Its
In, BBU243 and RRU242 can be individual two equipment, can also be two in a base station (Base Station)
Unit.In the disclosure, Fig. 2 shows be BBU243 and RRU242 be mutually independent two equipment situation.It is described
CPE241, RRU242, BBU243 and EPC244 are communicated to connect successively, wherein are locally also being deployed with edge calculations device 30, institute
State edge calculations device 30 deployment way can there are many.
For example, edge calculations device 30 can be the server being deployed between BBU243 and EPC244, in the case,
The BBU243 and EPC244 is communicated to connect by the edge calculations device 30, the edge calculations device 30 and the local
Server 22 communicates to connect.In other words, BBU243, EPC244 and 22 three of local server are realized by edge calculations device 30
Communication each other.Herein it is worth noting that, Fig. 2 shows be edge calculations device 30 be used as independent server disposition
Situation between BBU243 and EPC244.
For another example, edge calculations device 30 can be the device for being built in BBU243, and in this case, BBU243 passes through the side
Edge computing device 30 carries out data interaction with other equipment.
It is worth noting that, in the disclosure, local and distal end can indicate two LANs (for example, originally respectively herein
Ground LAN and distal end LAN), the equipment in described two LANs needs to be communicated by public network.
As shown in figure 3, being a kind of block diagram for edge calculations device 30 that the disclosure provides, the edge calculations device
30 include memory 31, processor 32, communication unit 33 and message transmitting device 40.
The memory 31, processor 32,33 each element of communication unit are directly or indirectly electrically connected between each other, with
Realize the transmission or interaction of data.For example, these elements between each other can be real by one or more communication bus or signal wire
Now it is electrically connected.At least one function mould of the message transmitting method provided for realizing the disclosure is provided in memory 31
Block, at least one function module can be stored in the form of software or firmware (firmware) in memory 31, to
Perform various functions application and data processing.
Wherein, memory 31 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Processor 32 can be a kind of IC chip, the processing capacity with data.Above-mentioned processor 32 can be with
It is general processor, such as central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc..Processor 32 may be implemented or execute each method, step and logic diagram disclosed in the disclosure.
In addition, general processor can also be that microprocessor or the processor can also be any conventional processor etc..
Communication unit 33 be used for by network establish edge calculations device 30 and miscellaneous equipment (such as, BBU243,
EPC244, local server 22 etc.) between communication connection, realize the transmitting-receiving operation of signal of communication and data.Above-mentioned communication letter
Number may include wireless signal and/or wire signal.
It should be appreciated that structure shown in Fig. 3 is only to illustrate, edge calculations device 30 can also include more than shown in Fig. 3
Less component, or with configurations different as shown in figure 3.For example, edge calculations device 30 can also include input/output
Interface unit or display unit etc..It is worth noting that, each component shown in Fig. 3 can be with software, hardware or its group herein
It closes and realizes.
Fig. 4 is please referred to below, is a kind of flow diagram for message transmitting method that the disclosure provides, the message transmissions side
Method is applied to edge calculations device 30 shown in Fig. 3.This method is described in detail below.
Step S41 receives message.
Step S42 is obtained if the message received is the GTP data messages that the BBU243 is sent to the EPC244
The mailing address of the IP datagram text encapsulated in the GTP data messages.
In the disclosure, whether edge calculations device 30 can carry GTP messages when receiving message according to the message
Head judges whether the message is GTP messages.If carrying GTP headings, it is determined that the message received is GTP messages, is gone forward side by side
One step judges that the GTP messages are GTP signaling messages or GTP data messages.
In the disclosure, GTP signaling messages can be based on SCTP (Stream Control Transmission
Protocol, Flow Control Transmission Protocol) agreement message, GTP data messages can be based on GTP-U agreements, and the two makes
Port is different, is illustrated for signaling message and data message are followed above-mentioned agreement in the present embodiment.
Therefore, it is possible to judge that the GTP messages received are GTP signaling messages or GTP data messages according to port numbers.This
Outside, encapsulation format used in GTP-U agreements and SCTP transport protocols is different, can also be by detecting in GTP headings
The content of predeterminated position judges that the GTP messages received are GTP signaling messages or GTP data messages.
It certainly, can also be according to the specific of agreement if GTP data messages and the message that signaling message is other protocol types
To data message and signaling message data separation, no longer illustrated one by one in the present embodiment.
It, can be according in the GTP headings of the GTP data messages when it is GTP data messages to determine the message received
Destination address and source address determine the sending directions of the GTP data messages, such as when the source address in the GTP data message heads
For the address of the BBU243, destination address is the address of the EPC244, then can determine that the message received is described
BBU243 is sent to the GTP data messages of the EPC244.
In the disclosure, the clothes for being sent to corresponding types are usually required for the user data of different types of user equipment
Business device is stored.For example, the video data that camera is acquired is needed to be sent to video server and be stored, collector institute
The facility information data of acquisition, which need to be sent to corresponding collector data server, to be stored.And video data usually only needs
It is stored in local, therefore, it is possible to determine depositing for the data according to the mailing address of the IP datagram text of user equipment transmission
Store up type.Wherein, the mailing address can be destination address or source address.
Optionally, the destination address can be purpose IP address or purpose MAC (Media or Medium Access
Control, media access control) address, the source address can be source IP address or source MAC.
In the disclosure, edge calculations device 30 obtains the communication of the IP datagram text encapsulated in the GTP data messages
The mode of address can there are many.
For example, can directly be decapsulated to the GTP data messages, the IP datagram text is obtained, and then can be direct
Read the mailing address of the IP datagram text.
For another example, a GTP data messages can be replicated, and to replicating when receiving the GTP data messages
To GTP data messages decapsulate to obtain the IP datagram text, and then the logical of the IP datagram text can be directly read
Believe address.In this way, can the data in identifying the GTP data messages according to mailing address need store in distal end when,
Directly original GTP data messages are forwarded, without being packaged again to the IP datagram text after decapsulation again.
Step S43 identifies the storage class of the data in the GTP data messages according to the mailing address.
Optionally, it is logical that corresponding with need to only be stored in local data first can be stored in edge calculations device 30
Believe address, such as IP address/MAC Address of the video server in networking 20 can be configured to first mailing address,
Or IP address/MAC Address of the camera in networking 20 can also be stored as first mailing address.
In the case, step S43 may include following sub-step：
When the mailing address is identical as first mailing address, the data in the GTP data messages are determined
Storage class is that only need to be stored in local.
Optionally, the data pair that can also be stored in edge calculations device 30 and local and distal end need to be stored in simultaneously
The second mailing address answered.Such as IP address/MAC Address of the collector data server in networking 20 can be stored as institute
The second mailing address is stated, or IP address/MAC Address of the collector in networking 20 can be stored as described second communicatedly
Location.
It should be appreciated that in the disclosure, as the first mailing address and IP that the second mailing address is local server
When location (or MAC Address), the mailing address of acquired IP datagram text is purpose IP address (or purpose in step S41
MAC Address)；When the first mailing address and the second mailing address are IP address (or MAC Address) of local subscriber apparatus, step
The mailing address of acquired IP datagram text is source IP address (or source MAC) in S43.
In the case, step S43 can also include following sub-step：
When the mailing address is identical as second mailing address, the data in the GTP data messages are determined
Storage class is that need to be stored in local and distal end simultaneously；
When the mailing address is from first mailing address and different second mailing address, described in determination
The storage class of data in GTP data messages is that need to only be stored in distal end.
Optionally, in the disclosure, can also be directed to only need to preserve data at the far end the corresponding third communication is arranged
Location judges IP datagram text according to whether the mailing address of IP datagram text is identical as the third communication address
Whether the user data of carrying is that only need to preserve data at the far end.
Step S44 directly transmits the IP datagram text if the storage class identified is that only need to be stored in local
To local server.
By the above process, this can be returned again to avoid the EPC244 that need to be only stored in local data and be first sent to distal end
The transmission duration of the data in the lte networks has been saved on ground, while also avoiding the transmission twice of the data in the lte networks
Occupy excessive bandwidth.
In addition, can also lead to when the data are sent to local for the data for needing while being stored in local and distal end
It crosses the edge calculations device 30 and carries out respective handling, be transmitted by the EPC244 of distal end to avoid the data.
In order to reach said effect, the message transmitting method that the disclosure provides can also include following two steps：
First, if the storage class identified is that need to be stored in local and distal end simultaneously, by a GTP datagrams
Text is sent to the EPC244, and a IP datagram text is sent to local server.
Wherein, if edge calculations device 30 is by directly getting institute to the GTP data messages decapsulation received
State the mailing address of IP datagram text, then it is when the storage class identified is that need to simultaneously store in local and distal end, then multiple
A IP datagram text of system, and be encapsulated and sent out for the GTP data messages, then the GTP data messages that encapsulation is obtained
EPC244 is given, the IP datagram text is transmitted to local server.
If edge calculations device 30 is to get the IP data by the GTP data messages decapsulation obtained to duplication
The mailing address of message, then it, can be directly by solution when the storage class identified is that need to simultaneously store in local and distal end
It encapsulates obtained IP datagram text and is sent to local server, then the original GTP data messages received are sent to
EPC244。
Second, if the storage class identified is that need to only be stored in distal end, the GTP data messages are sent to described
EPC。
Wherein, in one implementation：If edge calculations device 30 is by the GTP datagrams directly to receiving
Text decapsulation gets the mailing address of the IP datagram text, then when the storage class identified is that need to only be stored in distal end
When, the IP datagram text can be re-packaged into the GTP data messages, then the GTP datagrams that will be Resealed
Text is transferred to EPC244.
In another implementation：If edge calculations device 30 is the GTP data message solutions by being obtained to duplication
Encapsulation gets the mailing address of the IP datagram text, then when the storage class identified is that need to only store in distal end,
Can original GTP data messages be directly sent to EPC244, and abandon the IP datagram text.
By the above-mentioned means, can be in the case where not doing any change to EPC244 and BBU243 so that local service
Interaction data between device 22 and local subscriber apparatus has saved interaction data in the lte networks not by the EPC244 of distal end
Transmission duration, while reducing the occupancy to network bandwidth, to reduce demand of the networking 20 to network bandwidth.In addition,
Since a part of interaction data will not be by EPC244, while also reducing the requirement to EPC244 process performances.In addition, comparing
In existing by way of disposing EPC244 in each strange land branch, construction cost and later maintenance cost have been saved.
In practical applications, the data that local server is issued to local subscriber apparatus are also related to, for example, local service
Device is handed down to the configuration-direct of camera, resolution ratio, rotational parameters etc. for configuring camera.For this partial data, originally
It is open to be encapsulated by edge calculations device 30 as GTP data messages, then be transferred directly to by LTE network local
BBU243, without the EPC244 by distal end.
In order to reach said effect, Fig. 5 is please referred to, the message transmitting method that the disclosure provides can also include step S52-
Tri- steps of step S54, below will be described in detail step shown in fig. 5.
Step S52, if the message received is the IP datagram text for being sent to local subscriber apparatus, in the edge meter
Calculate the correspondence of the destination address that the IP datagram text is searched in the correspondence that device 30 records and source address hit.
In the disclosure, it for each local subscriber apparatus of access LTE network, is created between BBU243 and EPC244
There are the tunnels GPRS corresponding with the local subscriber apparatus.The data of each local subscriber apparatus can be by setting with the local user
The standby corresponding tunnels GPRS are transmitted.When the IP datagram text of the data of carrying local subscriber apparatus enters LTE network, need
Add corresponding GPRS tunnel informations, i.e. GTP headings.
In the disclosure, the destination address for there are data and source address are recorded in edge calculations device 30 and are used to encapsulate this
Correspondence between the GPRS tunnel informations of data.Wherein, the destination address refers to being sent to local use from local server
The destination address of the IP datagram text of family equipment can be specifically purpose IP address or target MAC (Media Access Control) address；The source address refers to
It is sent to the source address of the IP datagram text of local subscriber apparatus from local server, can be specifically source IP address or source MAC
Location.
In this way, when edge calculations device 30 receives the IP datagram that local server 22 is sent to local subscriber apparatus 23
Wen Shi can search the correspondence of the destination address and source address hit of IP datagram text in the correspondence of record,
The IP datagram text is packaged with the GPRS tunnel informations in the correspondence according to hit so that in the IP datagram text
Data can transmit in the lte networks.
Step S53 is that the IP datagram text adds GTP messages according to the GPRS tunnel informations in the correspondence of hit
Head obtains GTP data messages.
In the disclosure, the GPRS tunnel informations that the correspondence of the hit includes are for encapsulating the IP numbers
According to the GPRS tunnel informations of message, it is added to the GPRS tunnel informations as GTP headings in the IP datagram text, i.e.,
Available GTP data messages corresponding with IP datagram text.
Obtained GTP data messages are sent to the BBU243 by step S54, so that the BBU243 is by the GTP data
The data that message carries are sent to the local subscriber apparatus.
Wherein, BBU243 can decapsulate to obtain the IP datagram text, then press when receiving the GTP data messages
The local subscriber apparatus is forwarded it to according to the destination address of IP datagram text.
By the above process, when local subscriber apparatus 23 obtains data from local server 22, local server 22 is sent out
The data sent may not necessarily first be sent to the EPC244 of distal end, return again to local, to save transmission time, also avoid this
Data occupy network bandwidth.
In the present embodiment, the correspondence can be recorded by different modes.
In a specific embodiment, the correspondence can be pre-configured in edge calculations equipment 30.
In another specific implementation mode, it can also be realized by step shown in fig. 6.Based on this, the disclosure provides
Message transmitting method can also include the following steps.
Step S62 obtains the GTP signalings if the message received is the GTP signaling messages for creating the tunnels GPRS
GPRS tunnel informations in message simultaneously preserve, wherein the GPRS tunnel informations include the data surface link in the tunnels GPRS
First identifier on the BBU and the second identifier on the EPC (BBU GTP-TEID and EPC GTP-TEID).
In the disclosure, local subscriber apparatus can usually pass through LTE terminal, such as customer terminal equipment (Customer
Premise Equipment, CPE), access LTE network, a CPE is upper would generally access there are one, two or more local use
Family equipment.In the lte networks, each CPE tools there are one the corresponding tunnels GPRS, sent out by the local subscriber apparatus for accessing the CPE
The IP datagram text sent can pass through the GPRS tunnel transmissions.
The data transmitted between BBU and EPC include user data and signaling data, wherein user data is usually with GTP
The form of data message is transmitted, and signaling data transmits usually in the form of GTP signaling messages.EPC may include SGW (Serving
GateWay, gateway) and MME (Mobility Management Entity, mobility management entity), BBU can be with
The SGW of EPC carries out the interaction of user data, carries out the interaction of signaling data with the MME of EPC.Accordingly, between BBU and EPC
Each tunnels GPRS include：It is used for transmission the data surface link of user data and is used for transmission the control plane link of signaling data.
Wherein, the user data of different service types can be transmitted by different data surface links, and each data surface link can
Uniquely to be indicated by first identifier, second identifier and other relevant informations, other described relevant informations include the number
According to the link identification of transport Layer address of the face link on BBU, the transport Layer address on EPC and the data surface link
Deng.
Turning back to reference to Fig. 2, it is assumed that carry GPRS tunnels in the GTP signaling messages for creating the tunnels GPRS for CPE241
Road information M1, GPRS tunnel informations M1 include first identifier a1 and second identifier b1, then BBU243 is receiving local user
When the IP datagram text that equipment 231 or local subscriber apparatus 232 are sent, the GTP headings for IP datagram text encapsulation are practical
On be the GPRS tunnel informations M1 for including first identifier a1 and second identifier b1.
Based on this, the GTP data messages for carrying first identifier a1 and second identifier b1 can be intercepted, and then according to the GTP
The source address of the IP datagram text encapsulated in data message come determine which user data need using GPRS tunnel informations M1 into
Row encapsulation.
It is corresponding with multiple types of service more in view of in practical applications, usually being carried on a tunnel GPRS
A data surface link, and different local subscriber apparatus and local server may lead to the difference of type of service, therefore, according to
The destination address of the IP datagram text encapsulated in the GTP data messages of above-mentioned carrying first identifier a1 and second identifier b1 and source
Location determines which user data needs to be packaged using GPRS tunnel informations M1 jointly.
Based on this, the message transmitting method that the disclosure provides can also include step S63.
Step S63 carries the first identifier and described second after preserving the GPRS tunnel informations if receiving
The GTP data messages of mark then obtain the destination address and source address of the IP datagram text encapsulated in the GTP data messages, and
Record the correspondence of the destination address and source address and the GPRS tunnel informations that get.
Wherein, the destination address of the IP datagram text can be the IP address or MAC Address of local server, the IP
The source address of data message can be the IP address or MAC Address of local subscriber apparatus.
In the disclosure, when including multiple numbers corresponding with multiple types of service on the corresponding tunnels GPRS the CPE241
Can also include the related packaging information and the use data surface link of data surface link when according to face link, in the correspondence
Correspondence between the destination address and source address of the user data of transmission.Wherein, the related encapsulation of the data surface link
Information may include first identifier, second identifier, the transport Layer address on EPC, the biography on BBU of the data surface link
Defeated layer address and link identification etc..
The GPRS tunnel creation processes of CPE241 are described in detail below in conjunction with configuration information table shown in Fig. 7.
First, CPE241 send initial UE (User Equipment, user when being linked into LTE network, to BBU243
Equipment) message, to initiate attach request.
Second, BBU243 are CPE241 distribution eNB UE S1AP ID when receiving the initial UE message, and to
EPC244 includes the uplink initial direct-sending message of the eNB UE S1AP ID.
In the present embodiment, for ease of description, the tunnels GPRS created for CPE241 are about set to tunnel T1.Then, eNB
UE S1AP ID indicate mark of the control plane link of tunnel T1 on BBU243, can serve as the third mark in the disclosure.
It should be appreciated that eNB UE S1AP ID are also effective on RRU142, in other words, eNB UE S1AP ID can actually indicate tunnel
Mark of the control plane link of T1 on base station.
Third, EPC244 when receiving the uplink initial direct-sending message, for CPE241 distribute MME UE S1AP ID,
RAB ID, transport Layer address (EPC IP) and EPC GTP-TEID (GTP-Tunnel Endpoint ID, endpoint of a tunnel mark
Know), and the INITIAL CONTEXT that the MME UE S1AP ID, RAB ID, EPC IP and EPC GTP-TEID will be carried
SETUP REQUEST (initial context establishes request) are sent to BBU243.
Wherein, MME UE S1AP ID indicate mark of the control plane link of tunnel T1 on EPC244, can serve as this
The 4th mark in open.RAB ID indicate the link of the data surface link of tunnel T1 also referred to as wireless access bearing sign
Mark.EPC244 is that the transport Layer address EPC IP of CPE244 distribution indicate IP of the data surface link of tunnel T1 on EPC244
Address.EPC GTP-TEID indicate Tunnel Identifier of the data surface link of tunnel T1 on EPC244, can serve as in the disclosure
First identifier.
When 4th, BBU243 receive the initial context foundation request, radio resource is begun setting up, and complete nothing
INITIAL CONTEXT SETUP RESPONSE (initial context establishes response) are sent to EPC244 after the foundation of line resource, it should
Initial context is established in response and carries the MME UE S1AP ID, eNB UE S1AP ID, EPC IP, EPC GTP-
BBU IP and the BBU GTP-TEID of TEID and BBU243 distribution.
Wherein, BBU IP indicate transport Layer address of the data surface link of tunnel T1 on BBU243, such as can be IP
Address, BBU GTP-TEID indicate Tunnel Identifier of the data surface link of tunnel T1 on BBU, can serve as the in the disclosure
Two marks.
Can be that CPE241 creates tunnel T1 by the above process, the interaction of BBU243 and EPC244 in above process disappears
Breath can pass through the edge calculations device 30.Wherein, the initial context establishes request and the initial context is established
Response can serve as the GTP signaling messages for creating the tunnels GPRS in the disclosure.
In implementation process, when edge calculations device 30, which receives the initial context, establishes request, according to 3GPP
The initial context that standard agreement defines establishes the content that the format asked parses the request, therefrom obtains the MME UE of tunnel T1
S1AP ID, eNB UE S1AP ID, EPC IP and EPC GTP-TEID are simultaneously preserved.Described in being received when edge calculations device 30
When initial context establishes response, the format of the initial context foundation response defined according to 3GPP standard agreements parses the response
The content of message therefrom obtains BBU IP and the BBU GTP-TEID of tunnel T1 and preserves.
In this way, the MME UE S1AP ID, eNB UE S1AP ID, EPC IP, EPC GTP-TEID, the BBU IP that are preserved
It is the corresponding GPRS tunnel informations M1 of the tunnel T1 with BBU GTP-TEID, the form that can specifically save as table preserves
The GPRS tunnel informations M1.
In this example, it is assumed that tunnel T1 includes data surface link L1 and data surface link L2.Wherein, data surface link
The RAB ID of L1 are that 6, BBU IP are 192.168.0.101, and BBU GTP-TEID are that 1, EPC IP are 192.168.0.201, EPC
GTP-TEID is 1；The RAB ID of data surface link L2 are that 7, BBU IP are 192.168.0.102, and BBU GTP-TEID are 2, EPC
IP is 192.168.0.202, and EPC GTP-TEID are 2.Then, GPRS tunnel informations M1 can be remembered in edge calculations device 30
Record is configuration information table shown in Fig. 7.
After preserving GPRS tunnel informations M1, it can further obtain and need to carry out message using GPRS tunnel informations M1
The destination address and source address of the user data of encapsulation.
By taking configuration information table shown in Fig. 7 as an example, in implementation process, if edge calculations device 30 receive it is entrained
When the GTP data messages that BBU GTP-TEID are 1, EPC GTP-TEID are 1, the IP data that will be encapsulated in the GTP data messages
The destination address and source address of message take out, and believe to the related encapsulation of the data surface link L1 in the GPRS tunnel informations M1
Breath is corresponding to be preserved.
If edge calculations device 30 receive entrained BBU GTP-TEID be 2, the GTP that EPC GTP-TEID are 2
When data message, the destination address of the IP datagram text encapsulated in the GTP data messages and source address are taken out, and with it is described
The related packaging information of data surface link L2 in GPRS tunnel informations M1, which corresponds to, to be preserved.
After tunnel T1 establishments, it is also possible to be related to the modification to tunnel T1 and deletion, accordingly, be repaiied to tunnel T1
Change and realized by the GTP signaling messages for changing the tunnels GPRS, the deletion of tunnel T1 is passed through for deleting the tunnels GPRS
GTP signaling messages are realized.Based on this, the message transmissions message that the disclosure provides can also include the following steps.
If the message received is to carry the third mark and the described 4th to identify, for the tunnels GPRS to be deleted or modified
GTP signaling messages, then the correspondence is updated according to the GTP signaling messages.
Wherein, E-RAB MODIFY REQUEST (E-RAB are generally included for changing the GTP signaling messages in the tunnels GPRS
Modification request), E-RAB MODIFY RESPONSE (E-RAB modification response), E-RAB MODIFICATION INDICATION
(E-RAB modifications instruction), E-RAB MODIFICAITON CONFIRM (E-RAB modifications confirm) etc., edge calculations device 30 exists
When receiving above-mentioned GTP signaling messages, the MME UE in the GTP signaling messages can be searched in the correspondence of preservation
The correspondence that S1AP ID and eNB UE S1AP ID are hit, and according to the GTP signaling messages to the correspondence that is hit
In GPRS tunnel informations be updated.
By taking tunnel T1 as an example, during deleting tunnel T1, UE CONTEXT RELEASE are generally involved
COMMAND (release command of UE contexts) message, UE CONTEXT RELEASE COMPLETE (release of UE contexts is completed) disappear
(E-RAB discharges by breath, E-RAB RELEASE COMMAND (E-RAB release commands) message, E-RAB RELEASE RESPONSE
Response) message these four GTP signaling messages.
Wherein, when the GTP signaling messages received are UE CONTEXT RELEASE COMMAND (UE contexts release lives
Enable) message or UE CONTEXT RELEASE COMPLETE (release of UE contexts is completed) message when, can be in the correspondence of preservation
The correspondence that the MME UE S1AP ID and eNB UE S1AP ID in the GTP signaling messages are hit is searched in relationship, and
Delete the correspondence of the hit.
When the GTP signaling messages received are E-RAB RELEASE COMMAND (E-RAB release commands) message or E-
When RAB RELEASE RESPONSE (E-RAB releases response) message, the GTP signalings can be searched in the correspondence of preservation
The correspondence that RAB ID in message are hit, and in the GPRS tunnel informations in the correspondence of hit, illustrate the RAB
Data surface link corresponding to ID related packaging information (for example, RAB ID, EPC IP, BBU IP, EPC GTP-TEID and
BBU GTP-TEID etc.).
As shown in figure 8, being a kind of functional block diagram for edge calculations device 30 that the disclosure provides.The edge calculations
Device 30 includes receiving module 311, type identification module 312 and sending module 313.
Receiving module 311 is for receiving message, if the message received is the GTP that the BBU243 is sent to the EPC244
Data message then obtains the mailing address of the IP datagram text encapsulated in the GTP data messages.
In the disclosure, the description as described in receiving module 311 is specifically referred to step S41 shown in Fig. 4 and step S42
Detailed description, i.e. step S41 and step S421 can be executed by receiving module 311.
Type identification module 312 is used to identify the storage of the data in the GTP data messages according to the mailing address
Type.
In the disclosure, the description as described in type identification module 312, which specifically refers to, retouches step S43 shown in Fig. 4
It states, i.e. step S43 can be executed by type identification module 312.
Optionally, in the disclosure, it can be stored in the edge calculations device 30 and only need to be stored in local number
According to corresponding first mailing address and with need to be stored in local and corresponding second mailing address of the data of distal end simultaneously.
In these cases, type identification module 312 specifically can be used for communicating with described first when the mailing address
When address is identical, determine that the storage class of the data in the GTP data messages is that only need to be stored in local；When it is described communicatedly
When location is identical as second mailing address, determine that the storage class of the data in the GTP data messages is to store simultaneously
In local and distal end；When the mailing address is from first mailing address and different second mailing address, determine
The storage class of data in the GTP data messages is that need to only be stored in distal end.
Sending module 313 is used in the case where the storage class identified is that need to only be stored in local, by the IP numbers
Local server is sent directly to according to message.
In the disclosure, the description as described in sending module 313 specifically refers to the description to step S44 shown in Fig. 4, that is, walks
Rapid S44 can be executed by sending module 313.
Optionally, in the disclosure, sending module 313 can be also used in the storage class identified being to store simultaneously
In the case of local and distal end, a GTP data messages are sent to the EPC244, and by a IP numbers
Local server is sent to according to message；And in the case where the storage class identified is that need to only be stored in distal end, then will
The GTP data messages are sent to the EPC244.
Optionally, in the disclosure, the edge calculations device 30 can also include tunnel information preserving module 314.
Tunnel information preserving module 314 is used in the message received be the GTP signaling messages for creating the tunnels GPRS
In the case of, it obtains the GPRS tunnel informations in the GTP signaling messages and preserves, wherein the GPRS tunnel informations include institute
First identifier of the data surface link on the BBU and the second identifier on the EPC for stating the tunnels GPRS；And it is preserving
After the GPRS tunnel informations, if receiving the GTP data messages for carrying the first identifier and the second identifier, obtain
Take the destination address and source address of the IP datagram text encapsulated in the GTP data messages, and record the destination address got and
The correspondence of source address and the GPRS tunnel informations.
In the disclosure, the GPRS tunnel informations can also include the control plane link in the tunnels GPRS described
Third mark on BBU243 and the 4th mark on the EPC244.In the case, the edge calculations device 30 is gone back
It may include tunnel update module 315.
Tunnel information update module 315 is used in the message received be to carry the third mark and the described 4th to identify
, in the case of GTP signaling messages for the tunnels GPRS to be deleted or modified, the correspondence is updated according to the GTP signaling messages
Relationship.
Optionally, in the disclosure, the edge calculations device 30 can also include package module 316.
Package module 316 is used in the situation that the message received is the IP datagram text for being sent to local subscriber apparatus
Under, destination address and the source address hit of the IP datagram text are searched in the correspondence of edge calculations device record
Correspondence, according to the GPRS tunnel informations in the correspondence of hit be the IP datagram text add GTP headings, obtain
To GTP data messages.
Accordingly, sending module 313 can be also used for the GTP data messages that the package module 316 obtains being sent to
The BBU243, so that the data that the GTP data messages carry are sent to the local subscriber apparatus by the BBU243.
The description as described in above-mentioned module specifically refers to the detailed description to correlation step in foregoing teachings.
The disclosure provides a kind of message transmitting method and edge calculations device, by local disposition edge calculations device,
The GTP data messages that BBU is sent to EPC are intercepted, it should according to the identification of the mailing address of the IP datagram text encapsulated in GTP data messages
The storage class of data in GTP data messages will if the storage class of the data identified is that only need to be stored in local
The IP datagram text is sent directly to local server, need not pass through to make this be sent to the data of local server on the ground
The EPC of distal end avoids data and transmits the occupancy to network bandwidth twice in a network.
The foregoing is merely the selected embodiments of the disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, made by any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the disclosure.
Claims (12)
1. a kind of message transmitting method, which is characterized in that be applied to edge calculations device, the edge calculations device is for forwarding
The message between BBU and EPC in LTE network, wherein the BBU and the edge calculations device are deployed in local, described
EPC is deployed in distal end；The method includes：
Message is received, if the message received is the GTP data messages that the BBU is sent to the EPC, obtains the GTP numbers
According to the mailing address of the IP datagram text encapsulated in message；
The storage class of the data in the GTP data messages is identified according to the mailing address；
If the storage class identified is that only need to be stored in local, the IP datagram text is sent directly to local service
Device.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
If the storage class identified is that need to be stored in local and distal end simultaneously, a GTP data messages are sent to
The EPC, and a IP datagram text is sent to local server；
If the storage class identified is that need to only be stored in distal end, the GTP data messages are sent to the EPC.
3. according to the method described in claim 2, it is characterized in that, being stored in the edge calculations device and need to only be stored in
Local corresponding first mailing address of data and with need to be stored in local and corresponding second communication of the data of distal end simultaneously
Address；
The storage class of the data in the GTP data messages is identified according to the mailing address, including：
When the mailing address is identical as first mailing address, the storage of the data in the GTP data messages is determined
Type is that only need to be stored in local；
When the mailing address is identical as second mailing address, the storage of the data in the GTP data messages is determined
Type is that need to be stored in local and distal end simultaneously；
When the mailing address is from first mailing address and different second mailing address, the GTP numbers are determined
Storage class according to the data in message is that need to only be stored in distal end.
4. method according to any one of claim 1-3, which is characterized in that the method further includes：
If the message received is the GTP signaling messages for creating the tunnels GPRS, the GPRS in the GTP signaling messages is obtained
Tunnel information simultaneously preserves, wherein the GPRS tunnel informations include the data surface link in the tunnels GPRS on the BBU
First identifier and the second identifier on the EPC；
After preserving the GPRS tunnel informations, if receiving the GTP numbers for carrying the first identifier and the second identifier
According to message, then the destination address and source address of the IP datagram text encapsulated in the GTP data messages are obtained, and record and to get
The correspondence of destination address and source address and the GPRS tunnel informations.
5. according to the method described in claim 4, it is characterized in that, the GPRS tunnel informations further include the tunnels GPRS
Third mark of the control plane link on the BBU and the 4th mark on the EPC, the method further include：
If the message received be carry third mark and the 4th mark, for the tunnels GPRS to be deleted or modified
GTP signaling messages then update the correspondence according to the GTP signaling messages.
6. according to the method described in claim 1, it is characterized in that, the method further includes：
If the message received is the IP datagram text for being sent to local subscriber apparatus, in edge calculations device record
The correspondence of the destination address and source address hit of the IP datagram text is searched in correspondence；
It is that the IP datagram text adds GTP headings according to the GPRS tunnel informations in the correspondence of hit, obtains GTP numbers
According to message；
Obtained GTP data messages are sent to the BBU, so that the data that the BBU carries the GTP data messages are sent
To the local subscriber apparatus.
7. a kind of edge calculations device, which is characterized in that the message for forwarding the BBU in LTE network and between EPC, wherein
The BBU and the edge calculations device are deployed in local, and the EPC is deployed in distal end；Described device includes：
Receiving module, for receiving message, if the message received is the GTP data messages that the BBU is sent to the EPC,
Obtain the mailing address of the IP datagram text encapsulated in the GTP data messages；
Type identification module, the storage class for identifying the data in the GTP data messages according to the mailing address；
Sending module, for the storage class identified be only need to be stored in local in the case of, by the IP datagram text
It is sent directly to local server.
8. device according to claim 7, which is characterized in that the sending module is additionally operable to：
In the case where the storage class identified is that need to be stored in local and distal end simultaneously, by a GTP data messages
It is sent to the EPC, and a IP datagram text is sent to local server；And
In the case where the storage class identified is that need to only be stored in distal end, then the GTP data messages are sent to described
EPC。
9. device according to claim 8, which is characterized in that be stored in the edge calculations device and need to only be stored in
Local corresponding first mailing address of data and with need to be stored in local and corresponding second communication of the data of distal end simultaneously
Address；The type identification module, is specifically used for：
When the mailing address is identical as first mailing address, the storage of the data in the GTP data messages is determined
Type is that only need to be stored in local；When the mailing address is identical as second mailing address, the GTP datagrams are determined
The storage class of data in text is that need to be stored in local and distal end simultaneously；When the mailing address and first mailing address
When different with second mailing address, determine that the storage class of the data in the GTP data messages is that need to only be stored in
Distally.
10. according to the device described in any one of claim 7-9, which is characterized in that described device further includes：
Tunnel information preserving module, for the case where the message received is the GTP signaling messages for creating the tunnels GPRS
Under, it obtains the GPRS tunnel informations in the GTP signaling messages and preserves, wherein the GPRS tunnel informations include the GPRS
The first identifier of the data surface link on the BBU in tunnel and the second identifier on the EPC；And described in preservation
After GPRS tunnel informations, if receiving the GTP data messages for carrying the first identifier and the second identifier, obtaining should
The destination address and source address of the IP datagram text encapsulated in GTP data messages, and with recording the destination address got and source
The correspondence of location and the GPRS tunnel informations.
11. device according to claim 10, which is characterized in that the GPRS tunnel informations further include the tunnels GPRS
Third mark of the control plane link on the BBU and the 4th mark on the EPC, described device further includes：
Tunnel information update module, for being to carry the third mark and the 4th mark, use in the message received
In the case of the GTP signaling messages in the tunnels GPRS are deleted or modified, the correspondence is updated according to the GTP signaling messages.
12. according to the devices described in claim 11, which is characterized in that described device further includes：
Package module, in the case of for being the IP datagram text for being sent to local subscriber apparatus in the message received, in institute
State the correspondence of the destination address that the IP datagram text is searched in the correspondence of edge calculations device record and source address hit
Relationship is that the IP datagram text adds GTP headings according to the GPRS tunnel informations in the correspondence of hit, obtains GTP
Data message；
The sending module is additionally operable to the GTP data messages that the package module obtains being sent to the BBU, so that described
The data that the GTP data messages carry are sent to the local subscriber apparatus by BBU.
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Application publication date: 20181113 |