CN107295570B - The transmission method and equipment of the core network of downlink data - Google Patents
The transmission method and equipment of the core network of downlink data Download PDFInfo
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- CN107295570B CN107295570B CN201610225768.8A CN201610225768A CN107295570B CN 107295570 B CN107295570 B CN 107295570B CN 201610225768 A CN201610225768 A CN 201610225768A CN 107295570 B CN107295570 B CN 107295570B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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Abstract
The present invention relates to a kind of transmission method of downlink data and equipment of the core network, method therein includes: that the first equipment of the core network receives downlink data；First equipment of the core network judges whether downlink data is encapsulated by preset Generic Routing Encapsulation；If downlink data is encapsulated by preset Generic Routing Encapsulation, the first equipment of the core network judges whether terminal device pointed by downlink data is attached under the first equipment of the core network；If terminal device pointed by downlink data is not adhered under the first equipment of the core network, downlink data is packaged by the first equipment of the core network according to preset Generic Routing Encapsulation, and the downlink data after encapsulating is sent to the second equipment of the core network, so that the second core network device carries out the transmission of downlink data.The present invention can solve the problem of active and standby or load sharing networking scene of two sets of EPC equipment when existing EPC equipment does not support the IP address of fixed terminal equipment as a result,.
Description
Technical field
The present invention relates to a kind of transmission method of downlink data and equipments of the core network, belong to field of communication technology.
Background technique
In the prior art, evolved packet core (Evolved Packet Core, EPC) is on 4G long-term evolving network
The framework of convergence voice is provided, main component includes: mobile management entity (Mobility Management Entity, MME),
Manage the user in session (session) state and certification and tracking network；Gateway (Serving Gateway), passes through
Access network routing data；Packet data node gateway (Packet Data Node Gateway, PGW), as LTE network and
Port between other packet data network, management service quality (QoS) simultaneously provide depth data packet detection (DPI)；Policy and receipts
Take rule functional (Policy and Charging Rules Function, PCRF), server data stream detection, strategy is supported to hold
Row and meter flow charging mode.
In EPC networking, anchor point of the EPC equipment (i.e. equipment of the core network) as access terminal equipment UE, user's letter of UE
Breath is only attached in current EPC equipment.When be attached under different EPC equipment in UE, the address of transport layer IP is by current
The PGW of selection of equipment is distributed；When being attached under different EPC equipment, different PGW distribution addresses, thus root can be generally selected
It is different according to the IP address being assigned to for transmission group net.However, the capacity with existing network is gradually expanded, EPC set
Standby increasingly to access to terminal, this just puts forward new requirements the networking of EPC, especially in many privately owned miniaturization nets
In network, it is desirable that flexible transmission group net mode.
But under special network environment, such as in two sets of EPC equipment --- EPC1 and EPC2 is active and standby or load sharing
Networking, and when the UE under two sets EPC equipment being required the considerations of for service surface keep-alive etc. to roam IP address fix and with
When UE is bound, transmission group net not can determine which PGW distribution is the IP address of UE be, can only think that the UE may be in EPC1
Lower access, it is also possible to be accessed at EPC2, thus be possible to the inaccessible problem of data occur.
Specifically, as shown in Figure 1, EPC1 and EPC2 is intended only as two transmission access nodes of UE at this time, difference can
To use respective base station equipment BASE1 or BASE2 to transmit the data for going downwards to UE from external network to UE.But by
Do not know that the UE adheres in which EPC equipment at present in external network, thus not can determine that external network is gone downwards in network layer
The routing of the data of UE can only use multi-next-hop networking to realize that thus downlink data may not be able to normally reach accompanying by UE
EPC equipment, there is the inaccessible problem of data.
It can be seen that since there is downlink data routings may cause the inaccessible problem of data, thus it is existing
EPC equipment do not support following scenario: the active and standby or load sharing group of two sets of EPC equipment when the IP address of fixed terminal equipment
Net.
Summary of the invention
For the defects in the prior art, the present invention provides the transmission method and equipment of the core network of a kind of downlink data, can
To solve the active and standby or load sharing of two sets of EPC equipment when existing EPC equipment does not support the IP address of fixed terminal equipment
The problem of scene of networking.
In a first aspect, the present invention provides a kind of transmission method of downlink data, comprising:
First equipment of the core network receives downlink data；
First equipment of the core network judges whether the downlink data is encapsulated by preset Generic Routing Encapsulation；
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, first core net is set
It is standby to judge whether terminal device pointed by the downlink data is attached under first equipment of the core network；
If terminal device pointed by the downlink data is not adhered under first equipment of the core network, described first
The downlink data is packaged by equipment of the core network according to the preset Generic Routing Encapsulation, and will be under after encapsulation
Row data are sent to the second equipment of the core network, so that second core network device carries out the transmission of the downlink data；
Wherein, be pre-established with tunnel between first equipment of the core network and second equipment of the core network, and with institute
Preset Generic Routing Encapsulation is stated to correspond to each other.
Optionally, the transmission method of the downlink data further include:
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, first equipment of the core network
The encapsulation of the downlink data is unlocked, and judges whether terminal device pointed by the downlink data is attached to first core
Under heart net equipment；
If the downlink data is to be encapsulated by the preset Generic Routing Encapsulation, and the downlink data is signified
To terminal device be attached under first equipment of the core network, first equipment of the core network is to pointed by the downlink data
Terminal device corresponding to base station equipment send unlock encapsulation after the downlink data.
Optionally, the transmission method of the downlink data further include:
If the downlink data is to be encapsulated by the preset Generic Routing Encapsulation, and the downlink data is signified
To terminal device be not adhered under first equipment of the core network, first equipment of the core network abandons the lower line number
According to.
Optionally, the transmission method of the downlink data further include:
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, and downlink data institute
The terminal device of direction is attached under first equipment of the core network, and first equipment of the core network is signified to the downlink data
To terminal device corresponding to base station equipment send the downlink data.
Optionally, first equipment of the core network and second equipment of the core network is active and standby each other or load sharing.
Second aspect, the present invention also provides a kind of equipments of the core network, comprising:
Receiving unit, for receiving downlink data；
First judging unit, for judging whether the downlink data is encapsulated by preset Generic Routing Encapsulation；It is right
Preset Generic Routing Encapsulation described in Ying Yu, is pre-established with tunnel between the equipment of the core network and opposite end equipment of the core network
Road；
Second judgment unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
When, judge whether terminal device pointed by the downlink data is attached under current core net equipment；
First transmission unit is not adhered to first core for the terminal device pointed by the downlink data
When under net equipment, the downlink data is packaged according to the preset Generic Routing Encapsulation, and will be after encapsulation
Downlink data is sent to the opposite end equipment of the core network, so that the opposite end core network device carries out the biography of the downlink data
It is defeated.
Optionally, the equipment of the core network further include:
Third judging unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
When, the encapsulation of the downlink data is unlocked, and judge whether terminal device pointed by the downlink data is attached to described
Under one equipment of the core network；
Second transmission unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation,
And terminal device pointed by the downlink data, when being attached under first equipment of the core network, Xiang Suoshu downlink data is signified
To terminal device corresponding to base station equipment send unlock encapsulation after the downlink data.
Optionally, the equipment of the core network further include:
Discarding unit is encapsulated by the preset Generic Routing Encapsulation for being in the downlink data, and institute
It is standby to abandon the lower line number when stating terminal device pointed by downlink data and being not adhered under first equipment of the core network
According to.
Optionally, the equipment of the core network further include:
Third transmission unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
, and when terminal device pointed by the downlink data is attached under first equipment of the core network, Xiang Suoshu downlink data
Base station equipment corresponding to pointed terminal device sends the downlink data.
Optionally, first equipment of the core network and second equipment of the core network is active and standby each other or load sharing.
As shown from the above technical solution, the present invention is based on use between the first equipment of the core network and the second equipment of the core network
The tunnel of Generic Routing Encapsulation GRE setting, so that any one in two equipments of the core network does not have receiving direction
When being attached to the downlink data of the terminal device on itself, it is enterprising another equipment of the core network can be transferred it to by tunnel
Row processing, so as to avoid the inaccessible problem of data caused by multi-next-hop networking is used.The invention enables EPC as a result,
Two sets of EPC equipment are active and standby when equipment can support the IP address of fixed terminal equipment or the scene of load sharing networking.With it is existing
There is technology to compare, the present invention can be provided in the case where a kind of IP address for supporting fixed terminal equipment between two sets of EPC equipment
Active and standby and load sharing networking mode, enrich the networking application scene of EPC equipment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to make one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 be two sets of EPC equipment in the case that the prior art does not support the IP address of fixed terminal equipment it is active and standby or
The reason of scene of load sharing networking schematic diagram；
Fig. 2 is a kind of step flow diagram of the transmission method of downlink data in one embodiment of the invention；
Fig. 3 is a kind of step flow diagram of the transmission method of downlink data in further embodiment of this invention；
Fig. 4 is that a kind of equipment of the core network of the embodiment of the present invention is the process flow signal transmitting downlink data and carrying out
Figure；
Fig. 5 is a kind of structural block diagram of equipment of the core network in one embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 2 is a kind of step flow diagram of the transmission method of downlink data in one embodiment of the invention.Referring to figure
2, the transmission method of the downlink data of the embodiment of the present invention includes:
Step 201: the first equipment of the core network receives downlink data；
Step 202: the first equipment of the core network judges whether downlink data is encapsulated by preset Generic Routing Encapsulation；
Step 203: if downlink data is encapsulated by preset Generic Routing Encapsulation, the first equipment of the core network is sentenced
Whether terminal device pointed by disconnected downlink data is attached under the first equipment of the core network；
Step 204: if terminal device pointed by downlink data is not adhered under the first equipment of the core network, the first core
Downlink data is packaged by net equipment according to preset Generic Routing Encapsulation, and the downlink data after encapsulation is sent to
Second equipment of the core network, so that the second core network device carries out the transmission of downlink data；
Wherein, be pre-established with tunnel between the first equipment of the core network and the second equipment of the core network, and with it is preset general
Routing Encapsulation protocol corresponds to each other.
It should be noted that equipment of the core network as described herein, that is, above-mentioned including mobile management entity MME and packet data
The evolved packet core EPC equipment of the parts such as node gateway PGW；Downlink data as described herein derives from network and is directed toward end
The data of end equipment.It is thus understood that downlink data needs are transmitted to and are attached to the first equipment of the core network or second
On terminal device under equipment of the core network, therefore the first equipment of the core network and the second equipment of the core network are required to the end according to attachment
End equipment carries out the transmission of downlink data.
In order to help to understand, a kind of example of the transmission of second equipment of the core network progress downlink data is provided here.Specifically
Ground, above-mentioned second equipment of the core network can execute the transmission method of same downlink data with above-mentioned first equipment of the core network, tool
Body includes: corresponding to step 201, and the second equipment of the core network receives downlink data (coming from the first equipment of the core network)；Corresponding to step
Rapid 202, the second equipment of the core network can be determined that the downlink data received is encapsulated by preset Generic Routing Encapsulation.
To, the second equipment of the core network can after unlocking encapsulation according to EPC equipment by the downlink data transmission from external network extremely
The process of pointed terminal device UE completes the transmission of downlink data.
As can be seen that the embodiment of the present invention is based between the first equipment of the core network and the second equipment of the core network using general
Routing Encapsulation protocol GRE setting tunnel so that in two equipments of the core network any one receive be directed toward do not adhere to
When the downlink data of the terminal device on itself, it can be transferred it to by tunnel on another equipment of the core network
Reason, so as to avoid the inaccessible problem of data caused by multi-next-hop networking is used.The embodiment of the present invention makes as a result,
Two sets of EPC equipment are active and standby when EPC equipment can support the IP address of fixed terminal equipment or the scene of load sharing networking.With
The prior art is compared, and the embodiment of the present invention can provide two sets of EPC in the case where a kind of IP address for supporting fixed terminal equipment
The mode of active and standby and load sharing networking between equipment, enriches the networking application scene of EPC equipment.
As a kind of specific example, Fig. 3 is a kind of step of the transmission method of downlink data in further embodiment of this invention
Rapid flow diagram.Referring to Fig. 3, on the basis of above-mentioned steps 201 to step 204, the downlink data of the embodiment of the present invention
Transmission method further comprises following steps:
Step 205: if downlink data is encapsulated by preset Generic Routing Encapsulation, the first equipment of the core network is unlocked
The encapsulation of downlink data, and judge whether terminal device pointed by downlink data is attached under the first equipment of the core network；
Step 206: if downlink data is encapsulated by preset Generic Routing Encapsulation, and pointed by downlink data
Terminal device is attached under the first equipment of the core network, and the first equipment of the core network is to corresponding to terminal device pointed by downlink data
Base station equipment send unlock encapsulation after downlink data；
Step 207: if downlink data is encapsulated by preset Generic Routing Encapsulation, and pointed by downlink data
Terminal device is not adhered under the first equipment of the core network, and the first equipment of the core network abandons downlink data；
Step 208: if downlink data is encapsulated by preset Generic Routing Encapsulation, and pointed by downlink data
Terminal device be attached under the first equipment of the core network, the first equipment of the core network to terminal device pointed by downlink data institute it is right
The base station equipment answered sends downlink data.
It is understood that the first equipment of the core network being not directed to for step 201 to step 204 is tied in different judgements
Treatment process under fruit, step 205 to step 208 respectively give the example of processing mode.
More specifically, corresponding to scene shown in figure 1, Fig. 4 is that a kind of equipment of the core network of the embodiment of the present invention is to pass
Defeated downlink data and the processing flow schematic diagram carried out.Referring to fig. 4, correspond to two sets of EPC in above-mentioned first equipment of the core network to set
When EPC1, above-mentioned second equipment of the core network in standby correspond to the EPC2 in two sets of EPC equipment, the lower line number of the embodiment of the present invention
According to the process of transmission method will specifically include:
Referring to Fig. 1, Fig. 3 and Fig. 4, the external network in the embodiment of the present invention is when using multi-next-hop routing, lower line number
According to being initially first sent in the first equipment of the core network EPC1.In step 201, EPC1 has received this downlink data, due to
Network message at this time is non-Generic Routing Encapsulation gre tunneling message, therefore in step 202, EPC1 will determine downlink
Data are encapsulated by above-mentioned preset GRE.EPC1 continues to judge pointed by the downlink data in step 203 as a result,
Whether terminal device UE is attached under EPC1.
In the corresponding scene of step 208, EPC1 determines the non-gre tunneling message of downlink data and UE is attached to EPC1, says
It is illustrated in the downlink data transmission to correct EPC equipment.EPC1 can be by the downlink data to base corresponding to the UE as a result,
Station equipment BASE1 is sent, and completes the transmission of the downlink data.
And in the corresponding scene of step 204, EPC1 determines the non-gre tunneling message of downlink data and UE is not attached to
EPC1, this illustrates in the downlink data transmission to the EPC equipment of mistake.EPC1 will use the tunnel pre-established and incite somebody to action as a result,
Downlink data is encapsulated using GRE, and the downlink data after encapsulation is sent to the second equipment of the core network EPC2 through network connection.
It should be understood that in EPC2, although the downlink data that the downlink data and external network after being encapsulated using GRE are transmitted exists
Difference in content, but it is not distinct on the received communication mode of EPC2.EPC2 is receiving lower line number as a result,
According to when cannot distinguish between downlink data by it is several layers of which type of encapsulation, so there is still a need for using correspond to above-mentioned steps 202 side
Formula come to downlink data whether by GRE encapsulation judge.
In the embodiment of the present invention, EPC2 and EPC1 carries out the transmission of downlink data using exact same way, therefore
EPC2 is determining that processing mode of the downlink data for gre tunneling message when may refer to EPC1 in above-mentioned steps 205 to step 207
In processing mode, specifically:
Pass through when judging to determine downlink data for gre tunneling message of step 202 in EPC1, EPC1 can determine this at this time
Opposite end equipment of the core network (i.e. EPC2) of the downlink data from tunnel.But EPC1 not can determine that downlink data institute still at this time
The UE of direction is attached to itself, so to need to unlock the GRE encapsulation of downlink data in step 205, and whether carry out UE attached
EPC1 judgement.
Under the corresponding scene of step 206, downlink data is gre tunneling message and UE is attached on EPC1, is illustrated under this
Row data have first mistakenly been transferred on EPC2, have hereafter just been transferred to correct EPC equipment by gre tunneling
On.EPC1 can send the downlink data for unlocking encapsulation to base station equipment BASE1 corresponding to the UE as a result, complete the downlink
The transmission of data.
And under the corresponding scene of step 207, downlink data is gre tunneling message and UE is not attached on EPC1, explanation
UE pointed by downlink data had both been not adhered on EPC2 or had been not adhered on EPC1, i.e. EPC1 and EPC2 inherently can not
The transmission of the downlink data is completed, therefore the downlink data can be abandoned, terminates the transmission process of downlink data.Certainly, for
The unusual condition occurred at this time, can also be using the abnormality processing mode reported etc., and the present invention is without limitation.
Moreover, it is to be understood that the processing mode of above-mentioned steps 206 and step 208 is only EPC equipment by downlink data
It is transferred to a kind of example of UE, those skilled in the art can be replaced using other modes in the prior art, this
It invents without limitation.It should also be understood that in the transmission method of the downlink data in the embodiment of the present invention step 201 to
Step 208 can have what is flexibly changed to execute sequence on the basis of meeting sequencing required by respective logic judgement
(such as the transmission flow or the interspersed execution of each step for being performed simultaneously more parts of downlink datas), the present invention is without limitation.
As can be seen that the transmission method of the downlink data in the embodiment of the present invention, is being applied to any one EPC equipment
When, two sets of EPC equipment are active and standby when EPC equipment can be enabled to support the IP address of fixed terminal equipment or load sharing
The scene of networking.Moreover, processing mode of the embodiment of the present invention under each judgement scene is all simple and direct, and can use
Similar mode realizes that the information of terminal user under Same Scene is retrieved using terminal mutual visit message as a kind of downlink data, enhancing
The flexibility of transmission group net mode.
Based on same inventive concept, Fig. 5 is a kind of structural block diagram of equipment of the core network in one embodiment of the invention.Ginseng
See Fig. 5, which includes:
Receiving unit 51, for receiving downlink data；
First judging unit 52, for judging whether the downlink data is encapsulated by preset Generic Routing Encapsulation；
Corresponding to the preset Generic Routing Encapsulation, it is pre-established between the equipment of the core network and opposite end equipment of the core network
Tunnel；
Second judgment unit 53, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
When, judge whether terminal device pointed by the downlink data is attached under current core net equipment；
First transmission unit 54 is not adhered to first core for the terminal device pointed by the downlink data
When under heart net equipment, the downlink data is packaged according to the preset Generic Routing Encapsulation, and will be after encapsulation
Downlink data be sent to the opposite end equipment of the core network so that the opposite end core network device carries out the downlink data
Transmission.
It is understood that the equipment of the core network of the embodiment of the present invention can be above-mentioned first equipment of the core network and above-mentioned
Any one (another i.e. be used as opposite end equipment of the core network) in two equipments of the core network, the first equipment of the core network therein and the
Two equipments of the core network can active and standby each other or load sharing, the transmission side of the downlink data of any one of the above may be implemented
Method, and correspond to different step processes and there is corresponding structure construction.
As can be seen that the embodiment of the present invention is based between the first equipment of the core network and the second equipment of the core network using general
Routing Encapsulation protocol GRE setting tunnel so that in two equipments of the core network any one receive be directed toward do not adhere to
When the downlink data of the terminal device on itself, it can be transferred it to by tunnel on another equipment of the core network
Reason, so as to avoid the inaccessible problem of data caused by multi-next-hop networking is used.The embodiment of the present invention makes as a result,
Two sets of EPC equipment are active and standby when EPC equipment can support the IP address of fixed terminal equipment or the scene of load sharing networking.With
The prior art is compared, and the embodiment of the present invention can provide two sets of EPC in the case where a kind of IP address for supporting fixed terminal equipment
The mode of active and standby and load sharing networking between equipment, enriches the networking application scene of EPC equipment.
As a kind of specific example, in above-mentioned receiving unit 51, the first judging unit 52, second judgment unit 53 and
On the basis of one transmission unit 54, the equipment of the core network of the embodiment of the present invention further includes following structures:
Third judging unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
When, the encapsulation of the downlink data is unlocked, and judge whether terminal device pointed by the downlink data is attached to described
Under one equipment of the core network；
Second transmission unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation,
And terminal device pointed by the downlink data, when being attached under first equipment of the core network, Xiang Suoshu downlink data is signified
To terminal device corresponding to base station equipment send unlock encapsulation after the downlink data.
Discarding unit is encapsulated by the preset Generic Routing Encapsulation for being in the downlink data, and institute
It is standby to abandon the lower line number when stating terminal device pointed by downlink data and being not adhered under first equipment of the core network
According to.
Third transmission unit, in the downlink data being encapsulated by the preset Generic Routing Encapsulation
, and when terminal device pointed by the downlink data is attached under first equipment of the core network, Xiang Suoshu downlink data
Base station equipment corresponding to pointed terminal device sends the downlink data.
It is understood that for above-mentioned receiving unit 51, the first judging unit 52, second judgment unit 53 and the first hair
Treatment process of the equipment of the core network for sending unit 54 to be not directed under different judging results, third judging unit, second send
Unit, discarding unit, third transmission unit respectively give the example of processing mode.Wherein it should be noted that second sends
Unit and third transmission unit can be realized by same entity.
As can be seen that when the equipment of the core network of the embodiment of the present invention can support the IP address of fixed terminal equipment two sets
EPC equipment is active and standby or the scene of load sharing networking.Moreover, processing mode of the embodiment of the present invention under each judgement scene
It is all simple and direct, and can be realized terminal mutual visit message as a kind of downlink data under Same Scene by a similar method
Information of terminal user retrieval, enhance transmission group net mode flexibility.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or equipment for including element.
Numerous specific details are set forth in specification of the invention, although it is understood that, the embodiment of the present invention can
To practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.Similarly, it should be understood that disclose in order to simplify the present invention and helps to understand respectively
One or more of a inventive aspect, in the above description of the exemplary embodiment of the present invention, each spy of the invention
Sign is grouped together into a single embodiment, figure, or description thereof sometimes.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the range of specification of the invention.
Claims (10)
1. a kind of transmission method of downlink data characterized by comprising
First equipment of the core network receives downlink data；
First equipment of the core network judges whether the downlink data is encapsulated by preset Generic Routing Encapsulation；
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, first equipment of the core network is sentenced
Whether the terminal device pointed by the downlink data that breaks is attached under first equipment of the core network；
If terminal device pointed by the downlink data is not adhered under first equipment of the core network, first core
The downlink data is packaged by net equipment according to the preset Generic Routing Encapsulation, and by the lower line number after encapsulation
According to the second equipment of the core network is sent to, so that second core network device carries out the transmission of the downlink data；
Wherein, be pre-established with tunnel between first equipment of the core network and second equipment of the core network, and with it is described pre-
If Generic Routing Encapsulation correspond to each other.
2. the method according to claim 1, wherein further include:
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, first equipment of the core network is unlocked
The encapsulation of the downlink data, and judge whether terminal device pointed by the downlink data is attached to first core net
Under equipment；
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, and pointed by the downlink data
Terminal device is attached under first equipment of the core network, and first equipment of the core network is to end pointed by the downlink data
Base station equipment corresponding to end equipment sends the downlink data after unlocking encapsulation.
3. according to the method described in claim 2, it is characterized by further comprising:
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, and pointed by the downlink data
Terminal device is not adhered under first equipment of the core network, and first equipment of the core network abandons the downlink data.
4. the method according to claim 1, wherein further include:
If the downlink data is encapsulated by the preset Generic Routing Encapsulation, and pointed by the downlink data
Terminal device be attached under first equipment of the core network, first equipment of the core network is to pointed by the downlink data
Base station equipment corresponding to terminal device sends the downlink data.
5. method as claimed in any of claims 1 to 4, which is characterized in that first equipment of the core network and institute
State that the second equipment of the core network is active and standby each other or load sharing.
6. a kind of equipment of the core network characterized by comprising
Receiving unit, for receiving downlink data；
First judging unit, for judging whether the downlink data is encapsulated by preset Generic Routing Encapsulation；Correspond to
The preset Generic Routing Encapsulation, is pre-established with tunnel between the equipment of the core network and opposite end equipment of the core network；
Second judgment unit, for the downlink data be not by the preset Generic Routing Encapsulation encapsulate when,
Judge whether terminal device pointed by the downlink data is attached under current core net equipment；
First transmission unit is not adhered to the current core net for the terminal device pointed by the downlink data and sets
When under standby, the downlink data is packaged according to the preset Generic Routing Encapsulation, and by the downlink after encapsulation
Data are sent to the opposite end equipment of the core network, so that the opposite end core network device carries out the transmission of the downlink data.
7. equipment of the core network according to claim 6, which is characterized in that further include:
Third judging unit, for solving when the downlink data is encapsulated by the preset Generic Routing Encapsulation
The encapsulation of the downlink data is opened, and judges whether terminal device pointed by the downlink data is attached to the current core
Under net equipment；
Second transmission unit is encapsulated by the preset Generic Routing Encapsulation for being in the downlink data, and institute
When stating terminal device pointed by downlink data and being attached under the current core net equipment, pointed by Xiang Suoshu downlink data
Base station equipment corresponding to terminal device sends the downlink data after unlocking encapsulation.
8. equipment of the core network according to claim 7, which is characterized in that further include:
Discarding unit is encapsulated by the preset Generic Routing Encapsulation for being in the downlink data, and it is described under
It is standby to abandon the downlink data when terminal device pointed by row data is not adhered under the current core net equipment.
9. equipment of the core network according to claim 6, which is characterized in that further include:
Third transmission unit is encapsulated by the preset Generic Routing Encapsulation for not being in the downlink data, and
When terminal device pointed by the downlink data is attached under the current core net equipment, pointed by Xiang Suoshu downlink data
Terminal device corresponding to base station equipment send the downlink data.
10. equipment of the core network according to any one of claims 6 to 9, which is characterized in that the current core net is set
Standby active and standby each other with the opposite end equipment of the core network or load sharing.
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