CN106888171A - A kind of processing method and processing device of data service - Google Patents
A kind of processing method and processing device of data service Download PDFInfo
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- CN106888171A CN106888171A CN201510937448.0A CN201510937448A CN106888171A CN 106888171 A CN106888171 A CN 106888171A CN 201510937448 A CN201510937448 A CN 201510937448A CN 106888171 A CN106888171 A CN 106888171A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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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
- H04L47/20—Traffic policing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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Abstract
The embodiment of the invention discloses a kind of processing method of data service, methods described includes：Cache policy from CCN controllers to the base station send configuration with mobile content distribution network MCDN service functions and routing policy；The base station uses CCN mode treatment data services.The embodiment of the invention discloses a kind of processing unit of data service.
Description
Technical field
The present invention relates to field of data service, more particularly to a kind of processing method and processing device of data service.
Background technology
With the deployment of Long Term Evolution (Long Term Evolution, LTE) network, mobile network's flow will
There is explosive growth, mobile core network faces potential huge flow pressure.For reply flow increases challenge,
The content distributing network (Content Distribution Network, CDN) disposed towards wireless network is serviced
Node, i.e. mobile content distribution network (Mobile CDN, MCDN) service node, to alleviate core net
Flow pressure provides thinking.
Under LTE network environment, the packet-based core networks (Evolved Packet Core, EPC) of evolution turn into
The main placement location of MCDN service nodes.In existing correlation technique, by MCDN service nodes portion
Line number is so being entered in the important network element gateway (Serving Gate Way, SGW) of EPC by administration
During according to business, then user terminal can be analyzed and used by base station to MME initiating business requests by MME
Family request type, if meeting MCDN COSs, is forwarded to MCDN service nodes, Ran Hou
Whether have matching resource, requested content is returned if having if being retrieved in MCDN service nodes.If may not be used also
To search the matching resource by other MCDN service nodes in MCDN service node networks,
MCDN service nodes where first passing through resource needed for resource query catalog determines, then please by this
Ask and be forwarded to the MCDN service nodes that data can be provided.
In said process, the service request of user terminal is required for be arrived by the forwarding of base station and MME
MCDN service nodes, increased the MCDN where resource needed for the workload of MME, and determination
Service node is to realize that, as Internet resources quantity constantly expands, this must by retrieving resource query catalogue
So cause the decline of recall precision, while the management of this centralization can also limit MCDN service node networks
Scale.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of processing method of data service, can improve industry
Business treatment effeciency.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of processing method of data service, methods described includes：
To the base station send configuration with mobile content distribution network MCDN service functions cache policy and
Routing policy；
Wherein, the cache policy is used to indicate the base station needs to be buffered in the packet in caching storehouse CS,
The routing policy is used for the base station and updates forwarding information table FIB.
In such scheme, methods described also includes：
Receive the request bag for carrying content name that the base station reports；
Determine corresponding time source point of the request bag according to source policy is returned, described time source point is sent to the base station
IP；Or, determine corresponding time source point of the request bag according to source policy is returned, send institute to described time source point
Request bag is stated, the corresponding packet of the request bag for returning source point return is received；And by the packet
It is sent to base station；Described time source point includes content center or content source.
In such scheme, methods described also includes：
The content injection request that third party device sends is received, is carried in injection in the content injection request
Hold the IP address of name and content source where injection content；
Injected to base station transmission content and notified, the content injection notifies to include injection content name and the injection
The IP address of content source where content.
In such scheme, injection base station IDs are also included in the content injection request, then it is described to be sent to base station
Content injection notice, including：The base station transmission content injection identified to the injection base station IDs is notified；
Or, described injection to base station transmission content notifies, including：To the base station transmission content of autonomous distribution
Injection is notified.
In such scheme, methods described also includes：
The content removal request that third party's terminal sends is received, is carried in the content removal request in deletion
Hold name；
To the base station of the corresponding content-data of the deletion content name that is stored with, transmission content is deleted and notified, institute
Content deletion is stated to notify to include the deletion content name.
A kind of processing method of data service, methods described includes：
Receive content center network CCN controllers and send cache policy and routing policy；The cache policy is used
Packet in notifying to need to be buffered in caching storehouse CS；
Forwarding information table FIB is updated according to the routing policy；
Reception carry first content name and its corresponding content data packet, the first content name with
The caching storehouse CS matchings for prestoring are unsuccessful, when the match is successful with the pending required list PIT for prestoring, will be described
Packet is transmitted to user terminal, and is judged whether to cache the packet according to the cache policy；
If so, being then cached in the CS；If it is not, then abandoning the packet；
Reception carries the request bag of the second content name, in second content name and prestores CS and PIT all
Matching it is unsuccessful, with renewal after forwarding information table FIB the match is successful when, the request bag is sent to institute
State the next-hop interface that the match is successful in the FIB after updating.
In such scheme, after the request bag for carrying the second content name is received, methods described also includes：
When all the match is successful for second content name and CS, PIT and FIB for prestoring, by the request
Bag is sent to the CCN controllers；
Time source point IP that the CCN controllers are returned is received, is sent to source point is returned according to described time source point IP
The request bag, receives the corresponding packet of the request bag for returning source point return；
Or, receive the corresponding packet of the request bag that the CCN controllers are returned.
In such scheme, methods described also includes：
The content injection notice that the CCN controllers send is received, the content injection notifies to include in injection
Hold the IP address of name and content source where injection content；
IP address according to the content source obtains the corresponding content-data of the injection content name, described
Injection content name and its corresponding content-data are cached in CS.
In such scheme, the content deletion notice that the CCN controllers send is received, the content is deleted logical
Deletion content name is carried in knowing；
Delete deletion content name and its corresponding content-data described in the CS.
It is described that the packet is transmitted to user terminal or the request bag is sent in such scheme
During the next-hop interface that the match is successful in the FIB after the renewal, forwarded by X2 interface.
A kind of CCN controllers, the controller includes：
First transmitting element, for being sent to the base station with mobile content distribution network MCDN service functions
The cache policy and routing policy of configuration；Wherein, the cache policy be used for indicate the base station need caching
Packet in storehouse CS is cached, the routing policy is used for the base station and updates forwarding information table FIB.
In such scheme, the controller also includes：First receiving unit and first processing units, wherein,
First receiving unit, for receiving the request bag for carrying content name that the base station reports；
First processing units, for determining the request bag pair that first receiving unit is received according to time source policy
That answers returns source point；Described time source point includes content center or content source；
First transmitting element, is additionally operable to send the Hui Yuan that the first processing units determine to the base station
Point IP；Or, the source point that returns determined to the first processing units sends the request bag；
First receiving unit, is additionally operable to receive the corresponding data of the request bag for returning source point return
Bag；
First transmitting element, is additionally operable to for the packet that first receiving unit is received to be sent to base
Stand；
First receiving unit, is additionally operable to receive the content injection request that third party device sends, described interior
Hold the IP address that injection content name and content source where injection content are carried during injection is asked；
First transmitting element, is additionally operable to inject notice to base station transmission content, and the content injection is notified
IP address including the injection content name and injection content place content source；
First receiving unit, is additionally operable to receive the content removal request that third party's terminal sends, described interior
Deletion content name is carried in appearance removal request；
First transmitting element, is additionally operable to the deletion content received to first receiving unit that is stored with
The base station of the corresponding content-data of name, transmission content is deleted and notified, the content is deleted and notifies to include described deleting
Except content name.
In such scheme, injection base station IDs are also included in the content injection request, then described first send single
Unit, the base station transmission content injection specifically for being identified to the injection base station IDs is notified；
Or, first transmitting element, specifically for being notified to the base station transmission content injection of autonomous distribution.
A kind of base station with mobile content distribution network MCDN service functions, the base station includes：
Second receiving unit, cache policy and route plan are sent for receiving content center network CCN controllers
Slightly；The cache policy is used for the packet for notifying to need to be buffered in caching storehouse CS；
Second processing unit, the routing policy for being received according to second receiving unit updates forwarding letter
Breath table FIB；
Second receiving unit, is additionally operable to receive the packet for carrying first content name and its corresponding content data；
Second transmitting element, for can not matched with the caching storehouse CS for prestoring in first content name
Work(, when the match is successful with the pending required list PIT for prestoring, user terminal is transmitted to by the packet；
The second processing unit, is additionally operable to be matched not with the caching storehouse CS for prestoring in first content name
Success, when the match is successful with the pending required list PIT for prestoring, receives according to second receiving unit
Cache policy judges whether to cache the packet；If so, being then cached in the CS；If no
It is then to abandon the packet；
Second receiving unit, is additionally operable to receive the request bag for carrying the second content name；
Second transmitting element, is additionally operable to all be matched not with the CS and PIT that prestores in second content name
Success, with renewal after forwarding information table FIB the match is successful when, second receiving unit is received
Request bag is sent to the next-hop interface that the match is successful in the FIB after the renewal.
In such scheme, second transmitting element, be additionally operable to second content name and the CS for prestoring,
Be sent to for the request bag that second receiving unit is received described when all the match is successful by PIT and FIB
CCN controllers；
Second receiving unit, is additionally operable to receive time source point IP that the CCN controllers are returned；
Second transmitting element, be additionally operable to according to second receiving unit receive return source point IP to return
Source point sends the request bag；
Second receiving unit, is additionally operable to receive the corresponding data of the request bag for returning source point return
Bag；Or, second receiving unit is additionally operable to receive the request bag that the CCN controllers are returned
Corresponding packet.
Second receiving unit, is additionally operable to receive the content injection notice that the CCN controllers send, institute
Content injection is stated to notify to include the IP address for injecting content name and content source where injection content；
The second processing unit, is additionally operable to the IP address of the content source according to second receiving unit reception
Obtain the injection corresponding content-data of content name, cached in the CS injection content name and its
Corresponding content-data；
Second receiving unit, is additionally operable to receive the content deletion notice that the CCN controllers send, institute
State during content deletes notice and carry deletion content name；
The second processing unit, is additionally operable to delete the deletion of the reception of the second receiving unit described in the CS
Content name and its corresponding content-data.
A kind of processing method of data service is the embodiment of the invention provides, by by MCDN service functions portion
Administration to be made up of these base stations and use CCN communication patterns by X2 interface between CCN, each base station on base station
Communicated, by each base station in CCN controller management and control CCN.So base station can directly process user
The request of data business of terminal, using the route based on content it is possible to prevente effectively from frequently asking to report, drops
Low core net work load, improves Business Processing efficiency, and CCN is a kind of communication network based on content,
The efficiency of content oriented communication can be improved.In addition, base station is larger, can dispose larger
MCDN service function networks, improve coverage.
Brief description of the drawings
Fig. 1 is a kind of system architecture frame of processing method for realizing data service that the embodiment of the present invention 1 is provided
Figure；
Fig. 2 is a kind of schematic flow sheet of the processing method of data service that the embodiment of the present invention 1 is provided；
Fig. 3 is a kind of time stream of source method in the processing method of the data service that the embodiment of the present invention 2 is provided
Journey schematic diagram；
Fig. 4 is that the another kind in the processing method of the data service that the embodiment of the present invention 2 is provided returns source method
Schematic flow sheet；
Content injection is carried out in a kind of processing method of data service that Fig. 5 is provided for the embodiment of the present invention 2
Schematic flow sheet；
Content deletion is carried out in a kind of processing method of data service that Fig. 6 is provided for the embodiment of the present invention 2
Schematic flow sheet；
Fig. 7 is a kind of structured flowchart of CCN controllers that the embodiment of the present invention 3 is provided；
Fig. 8 is a kind of structured flowchart of base station with MCDN service functions that the embodiment of the present invention 3 is provided.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by.
Data service handling method provided in an embodiment of the present invention uses content center network
(Content-centric Networking, CCN) communication pattern, CCN is used with content (information)
Centered on communication pattern come a kind of network for building, it relieves the coupled relation between content and position,
Which platform server acquisition content user need not be concerned about from, and only needs concerned about content in itself.In communication process,
The name that all CCN nodes in CCN can be based on content is route and is forwarded, and to by certainly
The data content of body is cached, so that the user for subsequently having identical content to ask directly obtains from local cache
The content.
In existing content center network, interesting bag (Interest) and the packet of data service of transmission
(Date) two kinds, interest bag is sent by content requests user, and it carries requested content name.Packet
Corresponding with interest bag, for the interest bag that response contents request user sends, it carries requested content
Name and its corresponding content-data.In addition each the CCN node in content center network safeguards three tables：
Caching storehouse (Cache Store, CS), pending required list (Pending Interest Table, PIT) and forwarding
Information table (Forwarding Information Base).CS is used to cache by the packet of the CCN nodes
In content name and its corresponding content-data, in order to after this sign off, the content for caching
Data still can have the user service of identical content request for other；PIT is used to record and has forwarded but still
The content name of the interest bag not responded and the interest bag reach interface, are returned in order to corresponding packet original road
Return；FIB is similar with the IP route table function in conventional TCP/IP network, the forwarding for providing next-hop
Interface.
When a CCN node in CCN receives interest bag, the CCN nodes can use the interest first
Content name matching CS in bag, if the buffered content name and its corresponding content-data are (i.e. in CS
Cache hit), then directly forward the corresponding content-data of the content name and abandon along the arrival path of interest bag and be somebody's turn to do
Interest bag.If there is no the content name (i.e. cache miss) in CS, PIT is further matched, if
Have in PIT have with the interest bag identical content name, show that existing subscriber has identical content requests, this CCN
Node does not receive corresponding content-data also, then it is emerging to increase this in the content name entry for being matched in PIT
The arrival interface of interest bag, and abandon interest bag.If PIT is not also matched, show that no user has identical
Content requests, then search FIB, find the matching port of all next-hops forwarding, forwarded to these ports
The interest bag (the arrival interface of interest bag is no longer forwarded), and the arrival interface of interest bag is recorded in PIT；
If FIB does not also match entry, interest bag or the equipment for being transmitted to acquiescence are abandoned.
Compared with interest bag, the processing procedure of packet is relatively easy.When CCN nodes receive packet,
The content name field of packet can be matched, CS is matched first, if be cached with identical content name and
Its corresponding content-data, then directly abandon the packet；If it did not, continuing to be carried in the packet
Content name and PIT in entries match.It is corresponding to the content name in the entry of record if matching
Reach interface and forward the packet, and by the data pack buffer to CS, if there is no the entry of matching in PIT,
Direct packet discard.
In system architecture provided in an embodiment of the present invention, the above-mentioned CCN network architectures will be used, by MCDN
Service function sinks down into base station side, constitutes above-mentioned CCN nodes.Specifically, as shown in figure 1, the system
Framework is divided into two-layer：Lower floor is edge access layer, by the enhanced base station for deploying MCDN service functions
(eNodeB) as the CCN nodes in lower floor, (base station in the embodiment of the present invention is all deployment for base station
The base station of MCDN service functions) between interconnected by X2 interface, realize the transmission of data.Upper strata is
Key-course, is made up of CCN controllers, and MCDN services are deployed in CCN controller centralized managements lower floor
The base station of function, dock traditional IP CDN Dispatching Control Systems, and provide network capabilities open connect
Mouthful, provide subnetwork administration authority to third party's business.
A kind of data service handling method is present embodiments provided, CCN controllers side, this implementation is applied to
The handling process of example method is comprised the following steps：
Step 101, delaying to the base station send configuration with mobile content distribution network MCDN service functions
Deposit strategy and routing policy.
CCN controllers are mainly used in centralized management has the base station of MCDN service functions, these base station structures
Into the CCN of lower floor, the base station is equivalent to a CCN node in the CCN, the base station
In also safeguard three tables：CS, PIT and FIB；This three tables are used to record the content-data cached in node,
Instruct treatment request bag and packet.Wherein, the CS meets caching plan for caching by the base station
Content name and its corresponding content-data in packet slightly, in order to after this sign off, cache
The content-data for getting off still can have the user service of identical content request for other；PIT is used to record
The content name and the arrival interface of the request bag of the request bag through forwarding but not yet being responded, in order to corresponding
Packet backtracking；FIB is used to record the corresponding next-hop forwarding interface of content name, a content name pair
The next-hop forwarding interface answered can have one and can also have multiple.
Base station when by data pack buffer to CS, it is necessary to cached according to certain cache policy, in addition,
The corresponding next-hop forwarding interface of content name recorded in FIB is determined according to routing policy.It is described here
Cache policy and routing policy all configured by CCN controllers, the CCN controllers can be gathered
The distribution situation and the status information of base station of the content-data cached in each base station, configure routing policy, rule
The corresponding next-hop forwarding interface of certain content name in each base station is set, is had when in the CCN networks that base station is constituted
When new content is buffered or has content to be deleted, CCN controllers will be according to buffered new content institute
Base station or deleted content where base station, reconfigure routing policy.The CCN controllers also may be used
To configure the cache policy in base station, the cache policy needs to be buffered in CS for indicating the base station
Packet.After CCN controllers have configured cache policy and routing policy, it is possible to sent out to corresponding base station
Send the cache policy and routing policy.
Herein it should be noted that CCN controllers are except that can be base station allocating cache strategy and route plan
It is slightly outer, the health degree state of each base station can also be monitored, operation and the service state of each base station are gathered, realize
To the Topology Management of each base station, other configurations management, performance management, alarm management in lower floor, support by base
The normal orderly function of the CCN of composition of standing.CCN controllers can also gather, integrate the use of base station generation
Family such as accesses at the log information, and can secondary operation according to demand, support accessed service operation state, user
The analysis of behavior.After CCN controller collector journal information, all kinds of forms can also be generated according to operation demand,
Analysis resource distribution state, content service state, flow distribution situation etc., be resource adjustment, system optimization,
Business carries out offer reference.
The embodiment of the present invention additionally provides a kind of processing method of data service, is applied to base station side, such as schemes
Shown in 2, the handling process of the present embodiment method is comprised the following steps：
Step 201, reception content center network CCN controllers send cache policy and routing policy.
CCN controllers have configured cache policy and routing policy for base station, will be by cache policy and route plan
Base station is slightly sent to, base station just receives the cache policy and routing policy.
Step 202, according to the routing policy update FIB.
It is the corresponding next-hop forwarding interface of certain content name in base station specified in the routing policy, it is described
Following three tables are safeguarded in base station：CS, PIT and FIB, what is recorded in FIB is exactly corresponding next content name
Forwarding interface is jumped, after base station receives the routing policy, it is possible to the FIB is updated according to routing policy.
Step 203, reception carry the request bag of the second content name, are made requests on according to CCN communication patterns
Bag handling process.
The base station with MCDN service functions constitutes CCN in present implementation, is used between each base station
CCN communication patterns a, base station is equivalent to a CCN node in CCN, is all maintained in each base station
Three tables：CS, PIT and FIB, this three functions of table with it is identical in the prior art, will not be repeated here.
The data service processed in the present embodiment method includes request bag and packet.User terminal is having business
During request, the request bag that can will directly carry the second content name is sent to base station, second content name
That is the content name of user terminal requests.
There are in MCDN service functions, i.e. base station many content-datas that are stored with can provide the user for base station
Content distribution, these content-datas are stored in CS in the form of content name corresponding content data；Base station exists
After receiving request bag, first second content name can be matched with the CS for prestoring, if the CS
In be cached with second content name then the match is successful i.e. cache hit, the base station just can directly abandon this please
Seek bag and the corresponding content-data of the second content name in CS is sent to corresponding user terminal.If the CS
In do not cache second content name and then match unsuccessful i.e. cache miss, the base station is just by described second
Content name is matched with the PIT for prestoring.
What is recorded in the PIT is the content name and the request bag of the request bag for having forwarded but not yet having been responded
Reach interface, if therefore second content name is cached with the PIT i.e. the match is successful, show now useful
Family terminal is transmitted across identical request bag, this base station corresponding packet to be received such as, then in PIT
Increase the arrival interface of the request bag in the content name entry for matching, and abandon the request bag.If the PIT
In do not cache second content name and match unsuccessful, show not receiving identical request bag also, then
Second content name is matched with the FIB for prestoring.
What is recorded in FIB is the corresponding next-hop forwarding interface of each content name, if being cached with this in the FIB
Second content name is that the match is successful, shows that the CCN network internal storages that base station is constituted contain second content name correspondence
Content-data, now, can be just sent to the request bag in FIB by X2 interface and matched by base station
The corresponding next-hop interface of successful second content name.The request bag for carrying the second content name is received,
Second content name all matched with the CS and PIT that prestores it is unsuccessful, with renewal after FIB the match is successful when,
The request bag is sent to the next-hop interface that the match is successful in the FIB after the renewal.
Flow of the above-mentioned handling process all with CCN node processings interest bag in the prior art is identical, with existing skill
Unlike in art, when all the match is successful for second content name and CS, PIT and FIB for prestoring,
Show not storing the corresponding content-data of the second content name in the CCN networks that base station is constituted, base station needs
The request bag is sent to the CCN controllers, rather than direct discarding of the prior art or forwarding
To default interface.
Step 204, reception carry the packet of first content name and its corresponding content data, according to CCN
Communication pattern carries out processing data packets flow.
Base station is after the request bag for receiving the entitled first content name of request content, if no in this base station delay
The corresponding content-data of request bag is deposited, then can be transmitted to for request bag according to the matching result of FIB slow by this base station
There are other base stations of corresponding content data；The corresponding packet of the request bag is returned to by other base stations
This base station；First content name and its corresponding content data are carried in the packet.
This base station after receive the corresponding packet of the request bag, can first by first content name with prestore
CS is matched, if be cached with the CS first content name i.e. the match is successful, show the base station it
Before have been received by the packet, now the base station just can directly abandon the packet.If in the CS
Do not cache first content name match it is unsuccessful, then the base station just by the first content with prestore
PIT matched.
What is recorded in the PIT is the content name and the request bag of the request bag for having forwarded but not yet having been responded
Reach interface, if therefore be cached with the PIT first content name i.e. the match is successful, this base station before showing
Do not receive the first content corresponding packet of name, then matched in PIT to record first content name right
Each arrival interface answered sends the packet；And delete corresponding each arrival interface of the first content name
Entry.If not caching first content name in the PIT and matching unsuccessful, show to have received described
Packet, now by the data packet discarding.
Flow of the above-mentioned handling process all with CCN node processings packet in the prior art is identical, with existing skill
It is according to institute when the packet is sent to corresponding each arrival interface of first content name unlike art
Cache policy is stated to judge whether to cache the packet；If so, being then cached in the CS；If
It is not then to abandon the packet.As long as rather than the uncached number by this base station of the prior art
All it is cached in CS according to bag.
Embodiment 2
A kind of data service handling method is the embodiment of the invention provides, as shown in figure 3, being content Hui Yuanfang
Method, the handling process of the present embodiment method is comprised the following steps：
Step 301, base station carry the request bag of content name, CCN controllers to CCN controller reports
Receive the request bag for carrying content name that the base station reports.
After base station receives request bag, the content name and CS, PIT and the FIB for prestoring of carrying in request bag
When all the match is successful, show not storing the corresponding content number of the content name in the CCN networks that base station is constituted
According to base station needs for the request bag to be sent to the CCN controllers.
Step 302, the CCN controllers determine corresponding time source point of the request bag according to source policy is returned,
Described time source point IP is sent to the base station, what the base station reception CCN controllers were returned returns source point
IP。
CCN controllers are received after the request bag that base station reports, and are not had in the CCN for just knowing its lower floor
The storage corresponding content-data of request bag, is now accomplished by carrying out Hui Yuan finding the content-data, is redirecting
Under pattern, the CCN controllers can determine that the source mode of returning of the request bag is in content according to time source policy
The heart returns source or source station Hui Yuan, that is, the source point that returns for determining the request bag is content center or content source；It is determined that
After returning source point well, the CCN controllers will will return source point IP and be sent to base station, and Hui Yuan is initiated by base station.
Herein it should be noted that CCN controllers pass through comprehensive lower floor CCN lattice chains when returning source policy
The information configurations such as line state, node load, optimal time source point can be determined according to this time source policy.
Step 303, base station return source point IP according to and send the request bag to source point is returned.
After base station receives described time source point IP, it is possible to Hui Yuan is initiated, according to time source point IP to time source point
Send the request bag.
Step 304, base station receive the corresponding packet of the request bag for returning source point return.
If described time source point is content center, base station sends the request bag, the content to content center
Center is the content center of CDN, and the inside is stored with the various content resources in network, if in the content
The corresponding content-data of content name that the request bag that is stored with the heart is carried, then the content center can be direct
The packet that content name and corresponding content-data will be carried returns to base station；If in the content center
Without the corresponding content-data of content name that the request bag is carried is stored, then the content center can find
The corresponding content source of the content name, and the request bag is sent to content source, obtained from the content source
To the corresponding packet of the request bag, and the packet is returned into base station.
If described time source point is content source, base station sends the request bag to content source, in the content source
The corresponding content-data of content name that the request bag of being stored with is carried, then the content source can directly will carrying
There are content name and the packet of corresponding content-data to return to base station.
The above-mentioned method that Hui Yuan is carried out in content source or content center is existing time source stream journey, herein no longer
Repeat.
Step 302-304 is that Hui Yuan is carried out under redirection pattern, and CCN controllers can also be in proxy mode
Under carry out Hui Yuan, as shown in figure 4, its specific its flow is comprised the following steps：
Step 302a, CCN controller determines corresponding time source point of the request bag according to source policy is returned, to institute
State back source point and send the request bag.
CCN controllers are received after the request bag that base station reports, and are not had in the CCN for just knowing its lower floor
The storage corresponding content-data of request bag, is now accomplished by carrying out Hui Yuan finding the content-data, is redirecting
Under pattern, the CCN controllers can determine that the source mode of returning of the request bag is in content according to time source policy
The heart returns source or source station Hui Yuan, that is, the source point that returns for determining the request bag is content center or content source；It is determined that
After returning source point well, the CCN controllers will initiate Hui Yuan, and the request bag is sent to described time source point.
Step 303a, CCN controller receives the corresponding packet of the request bag for returning source point return.
The corresponding packet of the request bag is returned to the process of CCN controllers for content center or content source
Specifically may be referred to the description in step 303.
The packet is sent to base station by step 304a, CCN controller；The base station receives the CCN
The corresponding packet of the request bag that controller is returned.
After CCN controllers receive back the packet of source point return, the packet will be sent to base station.
So, after request bag is reported CCN controllers by base station, CCN controllers can be using redirection
Pattern (step 302-304) or proxy mode (step 302a-304a) are such that base station gets the request bag
Corresponding packet.
After base station obtains the packet, retouching in step 204 is specifically referred to the handling process of packet
State.In such cases, the content name in typically described packet can not matched with the caching storehouse CS for prestoring
Work(, the match is successful with the PIT for prestoring, and now the packet will be transmitted to user terminal by base station, and
Judged whether to cache the packet according to the cache policy；If so, being then cached to the CS
In；If it is not, then abandoning the packet.
Cached a packet due to new, thus the CCN controllers will update configure it is new for this
The routing policy of packet, and be sent to corresponding each base station, by each base station updating maintenance FIB accordingly.
The embodiment of the present invention additionally provides a kind of data service handling method, as shown in figure 5, for content is injected
Method, the handling process of the present embodiment method is comprised the following steps：
Step 501, CCN controllers receive the content injection request that third party device sends.
Described in above-mentioned flow is all method by CCN controller centralized management lower floors base station, this implementation
The CCN controllers that example method is provided also achieve opening for network capabilities while network management and control ability is strengthened
Put, with the interface of third party device third party device can be realized to having by providing CCN controllers
The Content Management of the base station of MCDN service functions.The operating personnel of third party device can be by management platform
Check in specific base the content-data of caching and can according to demand by CCN controllers perform content injection,
The operation such as deletion.
When the operating personnel of third party device want to inject content in a base station, can by third party device to
CCN controllers transmission content injection request, carried in the content injection request injection content name and
The IP address of content source where injection content.
Step 502, CCN controllers inject to base station transmission content and notify, the base station receives the CCN
The content injection notice that controller sends,
When the CCN controllers receive content injection request, if also including note in content injection request
Enter base station IDs, then showing that the third party device is specified will accordingly inject content caching to the base station IDs
In the base station of mark, now, the base station that the CCN controllers will be identified to the injection base station IDs is sent out
Send content to inject to notify.If being not injected into base station IDs in the content injection request, show the third party
The not specified base station of equipment, now, CCN controllers can independently select a base station to send the content note
Enter to notify.Example, the CCN controllers can select the minimum base station of cache contents to send
Content injection is stated to notify.The content injection notifies to include the injection content name and content where injection content
The IP address in source.
Step 503, base station obtain the corresponding content of the injection content name according to the IP address of the content source
Data, cache injection content name and its corresponding content-data in the CS.
After base station receives the content injection notice, will be from the content source at the IP address of the content source
It is middle to obtain the corresponding content-data of the injection content name.Obtain the corresponding content-data of the injection content name
Afterwards, the injection content name and its corresponding content-data will be cached in the CS.It is thus complete
Into the injection of content.
After the base station is by the injection content-data caching, injection knot can be sent to the CCN controllers
Fruit notifies, notifies the CCN controllers its injections for having completed to the injection content.Certainly, the base station
Corresponding contents can not may also be cached because of some reasons, now the base station can be controlled to the CCN
Device processed sends injection result and notifies, it does not complete injection to the injection content to notify the CCN controllers.
Cached a packet due to new, thus the CCN controllers will update configure it is new for this
The routing policy of packet, and be sent to corresponding each base station, by each base station updating maintenance FIB accordingly.
The embodiment of the present invention additionally provides a kind of data service handling method, as shown in fig. 6, for content is deleted
Method, the handling process of the present embodiment method is comprised the following steps：
Step 601, CCN controllers receive the content removal request that third party device sends.
When the operating personnel of third party device want to delete the content-data cached in certain base station, can be by the
Three method, apparatus are carried in the content removal request and deleted to the CCN controllers transmission content removal request
Except content name.
Step 602, base station from CCN controllers to the deletion corresponding content-data of content name that is stored with,
Transmission content is deleted and notified；Base station receives the content deletion notice that the CCN controllers send.
When the CCN controllers receive content removal request, will first search acquisition and be stored with the deletion
The base station of the corresponding content-data of content name, is then deleted to the base station transmission content and notifies, the content is deleted
Except notice includes the deletion content name.
Step 603, base station are deleted and content name and its corresponding content-data are deleted described in the CS.
After base station receives the content deletion notice, will be matched from CS and obtain the deletion content name
Corresponding content-data, then deletes the deletion content name and its corresponding content-data that are cached in prime number CS
Remove, this completes the deletion of corresponding contents.
After corresponding content-data is deleted in the base station, can be sent to the CCN controllers and delete result
Notify, notify the CCN controllers its deletions for having completed to the given content.Certainly, the base station can
Corresponding contents can not can also be deleted because of some reasons, now the base station can control to the CCN
Device sends injection result and notifies that it does not complete deletion to the content to notify the CCN controllers.
Due to deleting a packet, therefore the CCN controllers will update and configure new routing policy,
Described will delete the corresponding next-hop interface of content name to delete, and be sent to corresponding each base station, by each
Delete accordingly and deleted described in its FIB the corresponding next-hop interface of content name in individual base station.
In the present embodiment method, CCN controllers realize the communication with third party device, due to user profile,
Network state information is more and more important to third party device, and CCN controllers can be according to real needs by information
Integrate adaptation and be supplied to third party device, realize the interaction with third party device.And third party device can be with root
The information such as network state, node load, the content temperature provided according to CCN controllers customization cache policy etc.,
The cache policy of separate configurations base station, can improve the MCDN service ability of base station.CCN controllers may be used also
To analyze service operation state, distribution of content situation, occupation condition, user's access of third party device
Behavior etc., so that the user of keeper and third party device grasps service operation situation, and to migration efficiency and
Maintenance strategy is made and targetedly being adjusted.
The data service handling method that the present embodiment is provided, is deployed on base station by by MCDN service functions,
It is made up of these base stations and is communicated using CCN communication patterns by X2 interface between CCN, each base station, by
Each base station in CCN controller management and control CCN, the data that such base station can directly process user terminal please
Business is sought, using the route based on content it is possible to prevente effectively from frequently asking to report, core net work is reduced
Burden, and base station is larger, can dispose larger MCDN service function networks, and raising is covered
Lid scope, and CCN is a kind of communication network based on content, can improve the efficiency of content oriented communication.
Embodiment 3,
A kind of CCN controllers are the embodiment of the invention provides, as shown in fig. 7, the controller includes：The
One transmitting element 701, wherein,
First transmitting element 701, for the base station with mobile content distribution network MCDN service functions
The cache policy and routing policy of send configuration；Wherein, the cache policy is used to indicate the base station needs
The packet in caching storehouse CS is buffered in, the routing policy is used for the base station and updates forwarding information table FIB.
Optionally, as shown in fig. 7, the controller also includes：First receiving unit 702 and the first treatment
Unit 703, wherein,
First receiving unit 702, for receiving the request bag for carrying content name that the base station reports；
First processing units 703, for determining what first receiving unit 702 was received according to time source policy
Corresponding time source point of request bag；Described time source point includes content center or content source；
First transmitting element 701, is additionally operable to true to the base station transmission first processing units 703
Fixed returns source point IP；Or, the source point that returns determined to the first processing units 703 sends the request bag；
First receiving unit 702, the request bag for being additionally operable to receive described time source point return is corresponding
Packet；
First transmitting element 701, is additionally operable to the packet for receiving first receiving unit 702
It is sent to base station.
First receiving unit 702, the content for receiving third party device transmission injects request, described
The IP address of injection content name and content source where injection content is carried in content injection request；Described first
Transmitting element 701, is additionally operable to inject notice to base station transmission content, and the content injection is notified including described
The IP address of injection content name and content source where injection content.
Also include injection base station IDs in the content injection request, then first transmitting element 701, specifically
Base station transmission content injection for being identified to the injection base station IDs is notified；Or, described first sends single
Unit 701, specifically for being notified to the base station transmission content injection of autonomous distribution.
First receiving unit 702, the content removal request for receiving the transmission of third party's terminal is described
Deletion content name is carried in content removal request；First transmitting element 701, is additionally operable to being stored with
The base station for deleting the corresponding content-data of content name that first receiving unit 702 is received, transmission content
Delete and notify, the content is deleted and notifies to include the deletion content name.
The embodiment of the present invention additionally provides a kind of base station with MCDN service functions, as shown in figure 8, institute
Stating base station includes：Second receiving unit 801, second processing unit 802, the second transmitting element 803, wherein,
Second receiving unit 801, cache policy and road are sent for receiving content center network CCN controllers
By strategy；The cache policy is used for the packet for notifying to need to be buffered in caching storehouse CS；
Second processing unit 802, for the routing policy that is received according to second receiving unit 801 more
New forwarding information table FIB；
Second receiving unit 801, is additionally operable to receive the number for carrying first content name and its corresponding content data
According to bag；
Second transmitting element 803, for can not matched with the caching storehouse CS for prestoring in first content name
Work(, when the match is successful with the pending required list PIT for prestoring, user terminal is transmitted to by the packet；
The second processing unit 802, is additionally operable in first content name and CS, the caching storehouse for prestoring
With unsuccessful, when the match is successful with the pending required list PIT for prestoring, according to second receiving unit 801
The cache policy for receiving judges whether to cache the packet；If so, being then cached to the CS
In；If it is not, then abandoning the packet；
Second receiving unit 801, is additionally operable to receive the request bag for carrying the second content name；
Second transmitting element 803, is additionally operable to all be matched with the CS and PIT that prestores in second content name
It is unsuccessful, with renewal after forwarding information table FIB the match is successful when, second receiving unit 801 is connect
The request bag for receiving is sent to the next-hop interface that the match is successful in the FIB after the renewal.
Optionally, second transmitting element 803, be additionally operable to second content name and the CS for prestoring,
Be sent to for the request bag that second receiving unit 801 is received when all the match is successful by PIT and FIB
The CCN controllers；
Second receiving unit 801, is additionally operable to receive time source point IP that the CCN controllers are returned；
Second transmitting element 803, is additionally operable to the Hui Yuan received according to second receiving unit 801
Point IP sends the request bag to source point is returned；
Second receiving unit 801, the request bag for being additionally operable to receive described time source point return is corresponding
Packet；
Or, second receiving unit 801, be additionally operable to receive the CCN controllers return it is described please
Seek the corresponding packet of bag.
Optionally, second receiving unit 801, is additionally operable to receive the content that the CCN controllers send
Injection notifies that the content injection notifies to include the IP ground for injecting content name and content source where injection content
Location；
The second processing unit 802, is additionally operable to the content source received according to second receiving unit 801
IP address obtain the injection corresponding content-data of content name, cached in the CS in the injection
Hold name and its corresponding content-data.
Optionally, second receiving unit 801, is additionally operable to receive the content that the CCN controllers send
Delete and notify, the content is deleted in notifying and carries deletion content name；
The second processing unit 802, is additionally operable to delete the second receiving unit 801 described in the CS and receives
Deletion content name and its corresponding content-data.
Optionally, second transmitting element 803, specifically for being forwarded by X2 interface；Described
Two receiving units 801, specifically for being received by X2 interface.
In actual applications, the first transmitting element 701 described in the present embodiment, the first receiving unit 702
With first processing units 703, can be by the central processing unit on CCN controllers (CPU), microprocessor
(MPU), digital signal processor (DSP) or field programmable gate array (FPGA), modem
The second receiving unit 801 described in the present embodiment, second processing unit 802, the second transmission are realized Deng device
Unit 803 can be by the central processing unit (CPU) on base station, microprocessor (MPU), data signal
The device such as reason device (DSP) or field programmable gate array (FPGA), modem is realized.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can using hardware embodiment, software implementation or combine software and
The form of the embodiment of hardware aspect.And, the present invention can be used and wherein include calculating at one or more
Computer-usable storage medium (the including but not limited to magnetic disk storage and optical storage of machine usable program code
Device etc.) on implement computer program product form.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Flow chart and/or block diagram describe.It should be understood that flow chart and/or side can be realized by computer program instructions
The knot of flow in each flow and/or square frame and flow chart and/or block diagram and/or square frame in block diagram
Close.Can provide these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or
The processor of other programmable data processing devices is producing a machine so that by computer or other can
The instruction of the computing device of programming data processing equipment is produced for realizing in one flow of flow chart or multiple
The device of the function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices
In the computer-readable memory for working in a specific way so that storage is in the computer-readable memory
Instruction is produced includes the manufacture of command device, and the command device is realized in one flow of flow chart or multiple streams
The function of being specified in one square frame of journey and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and series of operation steps performed on computer or other programmable devices to produce computer implemented treatment,
So as to the instruction performed on computer or other programmable devices is provided for realizing in one flow of flow chart
Or specified in multiple one square frame of flow and/or block diagram or multiple square frames function the step of.
The above, only presently preferred embodiments of the present invention is not intended to limit protection model of the invention
Enclose.
Claims (15)
1. a kind of processing method of data service, it is characterised in that methods described includes：
To the base station send configuration with mobile content distribution network MCDN service functions cache policy and
Routing policy；
Wherein, the cache policy is used to indicate the base station needs to be buffered in the packet in caching storehouse CS,
The routing policy is used for the base station and updates forwarding information table FIB.
2. method according to claim 1, it is characterised in that methods described also includes：
Receive the request bag for carrying content name that the base station reports；
Determine corresponding time source point of the request bag according to source policy is returned, described time source point is sent to the base station
IP；Or, determine corresponding time source point of the request bag according to source policy is returned, send institute to described time source point
Request bag is stated, the corresponding packet of the request bag for returning source point return is received；And by the packet
It is sent to base station；Described time source point includes content center or content source.
3. method according to claim 1, it is characterised in that methods described also includes：
The content injection request that third party device sends is received, is carried in injection in the content injection request
Hold the IP address of name and content source where injection content；
Injected to base station transmission content and notified, the content injection notifies to include injection content name and the injection
The IP address of content source where content.
4. method according to claim 1, it is characterised in that
Also include injection base station IDs in the content injection request, then described injection to base station transmission content notifies,
Including：The base station transmission content injection identified to the injection base station IDs is notified；
Or, described injection to base station transmission content notifies, including：To the base station transmission content of autonomous distribution
Injection is notified.
5. method according to claim 1, it is characterised in that methods described also includes：
The content removal request that third party's terminal sends is received, is carried in the content removal request in deletion
Hold name；
To the base station of the corresponding content-data of the deletion content name that is stored with, transmission content is deleted and notified, institute
Content deletion is stated to notify to include the deletion content name.
6. a kind of processing method of data service, it is characterised in that methods described includes：
Receive content center network CCN controllers and send cache policy and routing policy；The cache policy is used
Packet in notifying to need to be buffered in caching storehouse CS；
Forwarding information table FIB is updated according to the routing policy；
Reception carry first content name and its corresponding content data packet, the first content name with
The caching storehouse CS matchings for prestoring are unsuccessful, when the match is successful with the pending required list PIT for prestoring, will be described
Packet is transmitted to user terminal, and is judged whether to cache the packet according to the cache policy；
If so, being then cached in the CS；If it is not, then abandoning the packet；
Reception carries the request bag of the second content name, in second content name and prestores CS and PIT all
Matching it is unsuccessful, with renewal after forwarding information table FIB the match is successful when, the request bag is sent to institute
State the next-hop interface that the match is successful in the FIB after updating.
7. method according to claim 6, it is characterised in that carry the second content name receiving
After request bag, methods described also includes：
When all the match is successful for second content name and CS, PIT and FIB for prestoring, by the request
Bag is sent to the CCN controllers；
Time source point IP that the CCN controllers are returned is received, is sent to source point is returned according to described time source point IP
The request bag, receives the corresponding packet of the request bag for returning source point return；
Or, receive the corresponding packet of the request bag that the CCN controllers are returned.
8. method according to claim 6, it is characterised in that methods described also includes：
The content injection notice that the CCN controllers send is received, the content injection notifies to include in injection
Hold the IP address of name and content source where injection content；
IP address according to the content source obtains the corresponding content-data of the injection content name, described
Injection content name and its corresponding content-data are cached in CS.
9. method according to claim 6, it is characterised in that
The content deletion notice that the CCN controllers send is received, the content is deleted in notifying to carry and deleted
Except content name；
Delete deletion content name and its corresponding content-data described in the CS.
10. method according to claim 6, it is characterised in that described to be transmitted to the packet
The request bag is sent to the next-hop interface that the match is successful in the FIB after the renewal by user terminal
When, forwarded by X2 interface.
11. a kind of CCN controllers, it is characterised in that the controller includes：
First transmitting element, for being sent to the base station with mobile content distribution network MCDN service functions
The cache policy and routing policy of configuration；Wherein, the cache policy be used for indicate the base station need caching
Packet in storehouse CS is cached, the routing policy is used for the base station and updates forwarding information table FIB.
12. controllers according to claim 11, it is characterised in that the controller also includes：The
One receiving unit and first processing units, wherein,
First receiving unit, for receiving the request bag for carrying content name that the base station reports；
First processing units, for determining the request bag pair that first receiving unit is received according to time source policy
That answers returns source point；Described time source point includes content center or content source；
First transmitting element, is additionally operable to send the Hui Yuan that the first processing units determine to the base station
Point IP；Or, the source point that returns determined to the first processing units sends the request bag；
First receiving unit, is additionally operable to receive the corresponding data of the request bag for returning source point return
Bag；
First transmitting element, is additionally operable to for the packet that first receiving unit is received to be sent to base
Stand；
First receiving unit, is additionally operable to receive the content injection request that third party device sends, described interior
Hold the IP address that injection content name and content source where injection content are carried during injection is asked；
First transmitting element, is additionally operable to inject notice to base station transmission content, and the content injection is notified
IP address including the injection content name and injection content place content source；
First receiving unit, is additionally operable to receive the content removal request that third party's terminal sends, described interior
Deletion content name is carried in appearance removal request；
First transmitting element, is additionally operable to the deletion content received to first receiving unit that is stored with
The base station of the corresponding content-data of name, transmission content is deleted and notified, the content is deleted and notifies to include described deleting
Except content name.
13. controllers according to claim 12, it is characterised in that
Also include injection base station IDs in the content injection request, then first transmitting element, specifically for
The base station transmission content injection identified to the injection base station IDs is notified；
Or, first transmitting element, specifically for being notified to the base station transmission content injection of autonomous distribution.
A kind of 14. base stations with mobile content distribution network MCDN service functions, it is characterised in that institute
Stating base station includes：
Second receiving unit, cache policy and route plan are sent for receiving content center network CCN controllers
Slightly；The cache policy is used for the packet for notifying to need to be buffered in caching storehouse CS；
Second processing unit, the routing policy for being received according to second receiving unit updates forwarding letter
Breath table FIB；
Second receiving unit, is additionally operable to receive the packet for carrying first content name and its corresponding content data；
Second transmitting element, for can not matched with the caching storehouse CS for prestoring in first content name
Work(, when the match is successful with the pending required list PIT for prestoring, user terminal is transmitted to by the packet；
The second processing unit, is additionally operable to be matched not with the caching storehouse CS for prestoring in first content name
Success, when the match is successful with the pending required list PIT for prestoring, receives according to second receiving unit
Cache policy judges whether to cache the packet；If so, being then cached in the CS；If no
It is then to abandon the packet；
Second receiving unit, is additionally operable to receive the request bag for carrying the second content name；
Second transmitting element, is additionally operable to all be matched not with the CS and PIT that prestores in second content name
Success, with renewal after forwarding information table FIB the match is successful when, second receiving unit is received
Request bag is sent to the next-hop interface that the match is successful in the FIB after the renewal.
15. base stations according to claim 14, it is characterised in that
Second transmitting element, is additionally operable in second content name and CS, PIT and FIB for prestoring all
When the match is successful, the request bag that second receiving unit is received is sent to the CCN controllers；
Second receiving unit, is additionally operable to receive time source point IP that the CCN controllers are returned；
Second transmitting element, be additionally operable to according to second receiving unit receive return source point IP to return
Source point sends the request bag；
Second receiving unit, is additionally operable to receive the corresponding data of the request bag for returning source point return
Bag；Or, second receiving unit is additionally operable to receive the request bag that the CCN controllers are returned
Corresponding packet；
Second receiving unit, is additionally operable to receive the content injection notice that the CCN controllers send, institute
Content injection is stated to notify to include the IP address for injecting content name and content source where injection content；
The second processing unit, is additionally operable to the IP address of the content source according to second receiving unit reception
Obtain the injection corresponding content-data of content name, cached in the CS injection content name and its
Corresponding content-data；
Second receiving unit, is additionally operable to receive the content deletion notice that the CCN controllers send, institute
State during content deletes notice and carry deletion content name；
The second processing unit, is additionally operable to delete the deletion of the reception of the second receiving unit described in the CS
Content name and its corresponding content-data.
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