CN105847330A - Content distribution method and system - Google Patents
Content distribution method and system Download PDFInfo
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- CN105847330A CN105847330A CN201610151166.2A CN201610151166A CN105847330A CN 105847330 A CN105847330 A CN 105847330A CN 201610151166 A CN201610151166 A CN 201610151166A CN 105847330 A CN105847330 A CN 105847330A
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/63—Routing a service request depending on the request content or context
Abstract
The invention provides a content distribution method and system. The method and system provided by the invention have the advantages that through deployment of MCDN service nodes in a BBU resource pool of a base station, a preset type of business request is sent to the MCDN service nodes of the base station through BBUs, so that the MCDN service nodes of the base station can obtain relevant data from the BBU resource pool, where current equipment is located, according to the business request; infrastructure resources are provided for the MCDN service nodes through virtualized base station resources, so that an MCDN system achieves elastic capacity shrinkage and expansion as well as other functions; for the preset type of business request of user equipment, the relevant data can be provided through the MCDN service nodes of the base station, so that the mobile network communication load is reduced, and the data transmission efficiency is improved.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of content distribution method and be
System.
Background technology
Along with the type of service of mobile network gradually increases, service traffics are the most progressively incremented by,
Service quality, Consumer's Experience problem in mobile network the most gradually come out.Move at present
In dynamic network there is certain bottleneck, due to 4G user in the network bandwidth of 4G core-network side
The speed-raising of bandwidth, and high-definition network video, the software/game download etc. uprushed are mobile mutually
Networking service flow also brings bigger rushing to the 4G core net bandwidth itself being in bottleneck
Hit.
Dispose towards wireless network CDN (Content Distribution Network, interior
Content distributing network) service node provides think of for alleviating mobile 4G core net flow pressure
Road, i.e. (Mobile Content Distribution Network, mobile content divides MCDN
Hairnet network) service node, by further by CDN service node to wireless side sinking portion
Administration, i.e. at 4G core net, wireless network sidepiece administration MCDN service node.
The characteristic of mobile network's terminal self determines the difference with fixed network terminal, Yong Hushe
For there is base station switching, the feature of access bandwidth change.The network how to change in bandwidth
In the case of, it is ensured that the effect that user accesses, such as video playback, very fast download etc.,
Through becoming problem demanding prompt solution.
Existing a kind of content distribution scenario is: MCDN service node is deployed in 4G
In the network element of core net EPC, such as, MCDN service node is deployed in grouped data
In gateway PGW, MCDN service node receives the business of gateway SGW transmission please
Ask, and according to service request at the local MCDN service node of retrieval, if retrieving industry
Business data, then obtain corresponding business datum and by this industry from local MCDN service node
Business data are sent to MCDN service node corresponding for SGW.
But, the deployment density of 4G core network element equipment is little, with the distance of subscriber equipment
Farther out, the data transmission bauds between 4G core network element equipment and subscriber equipment is caused relatively
Slowly, when transmitting video, voice or large file, 4G core net network service is born
Bigger.
Therefore, a kind of content distribution scenario is needed badly, to solve above-mentioned technical problem.
Summary of the invention
The present invention is directed to above-mentioned deficiency present in prior art, it is provided that a kind of content distribution
Method and system, in order to solve, 4G core network data transmission efficiency is low, EPC network logical
The problem that letter burden is big.
The present invention solves above-mentioned technical problem, adopt the following technical scheme that
The present invention provides a kind of content distribution method, the mobile content distribution network of base station
MCDN service node is deployed in baseband processing unit BBU resource pool, described method bag
Include:
The MCDN service node of base station receives the service request that BBU sends；Described industry
Business request is that subscriber equipment is sent to RF remote unit RRU, RRU be sent to
BBU, and judged that described service request is to be sent to base station after preset kind by BBU
MCDN service node；
The MCDN service node of base station according to described service request at this equipment
MCDN catalogue is retrieved, if retrieving corresponding data directory, then from this equipment place
BBU resource pool in obtain corresponding data, and send the data to described
RRU, so that RRU sends the data to subscriber equipment.
Further, described method also includes:
The MCDN service node of base station obtains the user carried in described service request and sets
Standby mark；
Detect and record described RRU and send what described data used to subscriber equipment
MCDN flow；
According to the default cycle, described customer equipment identification and MCDN flow are sent to
The SGW of 4G core net EPC.
Further, EPC is also deployed with MCDN service node, the MCDN of base station
Service node and the MCDN service node of EPC are direct-connected by private network, form MCDN
Network；
Described method also includes:
If the MCDN service node of base station according to described service request at this equipment
MCDN catalogue does not retrieves corresponding data directory, then described service request is sent
To the MCDN service node of EPC, so that the MCDN service node of EPC is according to institute
State service request to retrieve in the MCDN catalogue of this equipment；
Receiving the data that the MCDN service node of EPC sends, described data are EPC
MCDN service node in the MCDN catalogue of this equipment, retrieve corresponding data
Obtain during index and send；
Send the data to described RRU, so that RRU sends the data to
Subscriber equipment.
Further, joint is serviced at the MCDN that described service request is sent to EPC
After Dian, described method also includes:
The MCDN service node of base station receives the MCDN service node transmission of EPC
Service request failure response；Described service request failure response is the MCDN of described EPC
Service node sends when not retrieving corresponding data in the MCDN catalogue of this equipment；
Described service request failure response is sent to BBU, so that BBU is by described industry
Business request is sent to the SGW of EPC.
Further, after the data that the MCDN service node receiving EPC sends,
Described method also includes:
The MCDN service node of base station determines whether according to MCDN content update strategy
Described data are stored in the BBU resource pool at this equipment place；Wherein, described MCDN
Content update strategy is stored in MCDN strategic server, and by MCDN strategy
Server is the MCDN service node configuration of base station.
The present invention also provides for a kind of content delivering system, and including base station, base station includes: move
Dynamic content distributing network MCDN service node, multiple RF remote unit RRU, multiple
Baseband processing unit BBU and BBU resource pool, the MCDN service node of base station is disposed
In baseband processing unit BBU resource pool；
RRU is used for, and receives the service request that subscriber equipment sends, and please by described business
Ask and be sent to BBU；
BBU is used for, it is judged that whether described service request is the service request of preset kind,
The most described service request is sent to the MCDN service node of base station；
The MCDN service node of base station is used for, and receives the service request that BBU sends,
Retrieve in the MCDN catalogue of this equipment according to described service request, if retrieving corresponding
Data directory, then from the BBU resource pool at this equipment place, obtain corresponding data,
And send the data to described RRU, so that RRU sends the data to user
Equipment.
Further, described content delivering system also includes the service of 4G core net EPC
Gateway SGW；
The MCDN service node of base station is additionally operable to, and obtains and carries in described service request
Customer equipment identification；And, detect and record described RRU and send to subscriber equipment described
The MCDN flow that data use；According to the default cycle, by described customer equipment identification
With the SGW that MCDN flow is sent to EPC.
Further, described content delivering system also includes the MCDN being deployed in EPC
Service node, the MCDN service node of base station leads to the MCDN service node of EPC
Cross private network direct-connected, form MCDN network；
The MCDN service node of base station is additionally operable to, when the MCDN service node of base station
In the MCDN catalogue of this equipment, corresponding data are not retrieved according to described service request
During index, described service request is sent to the MCDN service node of EPC；And,
Receive the data that the MCDN service node of EPC sends；And, described data are sent
To described RRU, so that RRU sends the data to subscriber equipment；
The MCDN service node of EPC is used for, and receives the MCDN service node of base station
The service request sent, examines in the MCDN catalogue of this equipment according to described service request
Rope, when retrieving corresponding data directory, obtains corresponding data and by described data
It is sent to the MCDN service node of base station.
Further, the MCDN service node of EPC is additionally operable to, when according to described business
When request does not retrieves corresponding data in the MCDN catalogue of this equipment, to base station
MCDN service node sends service request failure response；
The MCDN service node of base station is additionally operable to, and receives the MCDN service joint of EPC
The service request failure response that point sends, and described service request failure response is sent to
BBU, so that described service request is sent to the SGW of EPC by BBU.
Further, described system also includes MCDN strategic server, MCDN strategy
Server is used for, and the MCDN service node for base station configures MCDN content update plan
Slightly；
The MCDN service node of base station is additionally operable to, according to MCDN content update strategy
Determine whether to store described data in the BBU resource pool at this equipment place.
The present invention passes through to dispose MCDN service node in the BBU resource pool of base station,
By BBU, the service request of preset kind is sent to the MCDN service node of base station,
So that the MCDN service node of base station is according to described service request, from this equipment place
Obtaining corresponding data in BBU resource pool, the base station resource after utilization virtualization is
MCDN service node is provided infrastructures resource so that MCDN system has elastic contracting
The functions such as appearance and dilatation.For the service data request of the preset kind of subscriber equipment, example
Such as service request such as, video, voice and big files, can be taken by the MCDN of base station
Business node provides corresponding data, is avoided by 4G core network gateway to a certain extent,
Thus reduce mobile network communications burden, and, the physical distance of base station and subscriber equipment is more
Closely, data transmission efficiency is improved.
Accompanying drawing explanation
The MCDN system architecture diagram based on eNB that Fig. 1 provides for the embodiment of the present invention；
The content distribution schematic flow sheet that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is carried out clearly
Chu, complete description, it is clear that described embodiment is the part enforcement of the present invention
Example rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other enforcement that technical staff is obtained on the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
The problems referred to above existed for prior art, embodiments provide in one
Hold distribution approach, LTE based on cloud (Long Term Evolution, Long Term Evolution)
Access network base stations, carries out virtualizing and unify management and control, Yun Huahou by access network elements base station
Base station there is the characteristic of data center.The base station of Yun Huahou with APP, (Application,
Application program) form be provided out service.The MCDN being deployed on the base station of Yun Huahou
Base station resource after service node utilizes virtualization provides basis to set for MCDN service node
Execute resource.The MCDN service node of base station can provide the user video, voice and big
The data such as file, are avoided by 4G core network gateway to a certain extent, thus reduce shifting
Dynamic Network Communication burden, improves data transmission efficiency.
Along with cloud computing is at the good application of moving communicating field, and SDN in recent years
(Software Defined Network, software defined network), NFV (Network
Function Virtualization, network function virtualizes) development of technology, base station is more come
More having cloud development trend, the base station of Yun Huahou has small-sized data central characteristics, makes
Must be possibly realized for MCDN node resource of providing infrastructures.
The construction mode of base station is gradually developed by the macro station networking of traditional high-power high power consumption
It is the construction mode of main flow for base station in a distributed manner, on the basis of distributed base station, many
BBU (Building Base band Unite, baseband processing unit) concentrated setting, collaborative
The network construction form processed will become the developing direction of following Radio Access Network.
See Fig. 1, for the embodiment of the present invention provide based on eNodeB (base station)
MCDN system architecture diagram.As it is shown in figure 1, this MCDN system includes base station eNodeB,
Base station is LTE distributed base station, is a kind of base station combination can installed with flexible distributed formula,
Including MCDN service node, multiple RRU (Radio Remote Unit, RF remote
Unit), multiple BBU (Building Base band Unit, baseband processing unit) and
BBU resource pool, the MCDN service node of base station is deployed in baseband processing unit BBU
In resource pool.Wherein, RRU is connected with BBU by Ir interface, and BBU passes through S1
Interface is connected with 4G core net EPC.
BBU resource pool includes infrastructure resources, specifically includes calculation server, storage
Server and the webserver.Based on virtualization and SDN technology, eNodeB is carried out cloud
After change, the infrastructure resources of eNodeB can unify management and control and flexible allocation uses.Cloud
Changing in the BBU network element pond union of eNodeB and dispose, resource can be managed collectively, because of
This infrastructure resources based on BBU resource pool can dispose MCDN service node,
Carry out MCDN business.
Described MCDN system can also include that MCDN strategic server (is not painted in figure
Show), MCDN strategic server can be the MCDN service node configuration of base station
MCDN content update strategy.
As it is shown in figure 1, EPC can include SGW (Serving GateWay, service network
Close), PGW (Public Data Network GateWay, public data network gateway),
The network element devices such as MME (Mobility Management Entity, mobile management entity),
Also being deployed with MCDN service node in EPC, MCDN service node can be deployed in
In SGW, PGW, MME at least one network element device, SGW, PGW, MME
As the base station of the present invention, for carrying out Yun Huahou's based on virtualization and SDN technology
EPC network element device, the infrastructure resources of each network element device also passes through pond, is formed
Resource pool, provides data resource for the MCDN service node being deployed on each network element device.
The MCDN service node of base station and the MCDN service node of EPC are direct-connected by private network,
Form MCDN network.Each user equipment (UE) and base station carry out radio communication, and EPC is also
The Internet (Internet) can be accessed.
Below in conjunction with Fig. 2, the content distribution flow process providing the embodiment of the present invention is carried out in detail
Describe in detail bright.As in figure 2 it is shown, this flow process comprises the following steps:
Step 201, UE sends service request to eNodeB, and RRU receives this business please
Ask and be transmitted to BBU.
Concrete, base band optical signal is changed into radiofrequency signal amplification at far-end and sends out by RRU
Go, thus realize the radio communication between eNodeB and UE.RRU is as eNodeB
Signal sending and receiving equipment, receive UE send service request time, by this service request
It is sent to the BBU of eNodeB.
Step 202, BBU judges that whether described service request is that the business of preset kind please
Ask, the most then perform step 203, otherwise, this service request is uploaded to EPC.
Concrete, the service request of preset kind refers to video, audio frequency or large file service
The service request of type.If the BBU of eNodeB judges the service request that UE sends
For video, audio frequency or the service request of large file service type, then this service request is turned
The MCDN service node issuing base station processes (i.e. performing step 203), thus to this
The service request of type carries out MCDN bypass.If BBU judges the business that UE sends
Request is non-video, audio frequency and the service request of large file service type, then use tradition
Pattern, is transmitted to this service request 4G core net EPC network element device and processes.
Step 203, described service request is sent to the MCDN service joint of base station by BBU
Point.
Step 204, the MCDN service node of base station is according to described service request, at this
The MCDN catalogue of equipment being retrieved, if retrieving corresponding data directory, then performing step
Rapid 205, otherwise, perform step 206.
Concrete, MCDN catalogue is pre-stored in the MCDN service node of base station, should
MCDN catalogue is the MCDN catalogue of the data resource of the BBU resource pool storage of base station.
MCDN service node retrieves MCDN catalogue according to described service request, if the phase of retrieving
The data directory answered, illustrates that this base station internal memory contains the data resource of UE request, then from base
The BBU resource pool stood obtains corresponding data (i.e. perform step 205), so,
Avoid and obtain data by EPC, reduce mobile network communications burden, improve data transmission
Efficiency.If MCDN service node does not retrieves corresponding data in MCDN catalogue
Index, does not stores the data resource of UE request, then asks EPC in this base station is described
Network element device corresponding data (i.e. perform step 206) are provided.
Step 205, the MCDN service node of the base station BBU money from this equipment place
Pond, source obtains corresponding data, and sends the data to described RRU, so that RRU
Send the data to subscriber equipment.
Concrete, the data got are sent to described by the MCDN service node of base station
RRU, RRU by described data with the form of standard agreement bag, by downlink of eating dishes without rice or wine
Return UE.
Step 206, described service request is sent to by the MCDN service node of base station
The MCDN service node of EPC.
Step 207, the MCDN service node of EPC is originally setting according to described service request
Standby MCDN catalogue being retrieved, if retrieving corresponding data directory, then performing step
208, otherwise, perform step 210.
Concrete, also it is preset with MCDN catalogue in the MCDN service node of EPC,
This MCDN catalogue is the data money of this MCDN service node place network element device storage
The MCDN catalogue in source, such as, if MCDN service node is deployed in SGW, then
The MCDN catalogue preset in this MCDN service node is the number in the resource pool of SGW
MCDN catalogue according to resource.
If the MCDN service node of EPC retrieves in the MCDN catalogue of this equipment
Corresponding data directory, illustrates the EPC network element at the MCDN service node place of EPC
Device memory contains the data resource of UE request, then obtain from the resource pool of this network element device
Take corresponding data (i.e. performing step 208).
If the MCDN service node of EPC is not retrieved in the MCDN catalogue of this equipment
To corresponding data directory, the EPC net at the MCDN service node place of EPC is described
Do not store the data resource of UE request in element device, then according to traditional mode, inform base
The MCDN service node service request failure stood, so that the SGW that base station is by EPC,
Data (i.e. performing step 210) are obtained to EPC upstream (i.e. the Internet).
Step 208, the MCDN service node of EPC obtains corresponding data and will obtain
To data be sent to the MCDN service node of base station.
Concrete, the MCDN service node of EPC will be got by the SGW of EPC
Data be sent to the MCDN service node of base station.
Step 209, the MCDN service node of base station sends the data to described
RRU, so that RRU sends the data to subscriber equipment.
Step 210, the MCDN service node of the EPC MCDN service joint to base station
Point sends service request failure response, and the MCDN service node of base station please by described business
Failure response is asked to be sent to BBU, so that described service request is sent to EPC by BBU
SGW.
Concrete, when the MCDN service node of EPC in local MCDN catalogue not
When retrieving corresponding data directory, the MCDN service node to base station sends business please
Seeking failure response, the MCDN service node of base station forwards this service request to lose to BBU
Losing response, described service request is sent to the SGW of EPC by BBU, thus by passing
System path obtains corresponding data from the Internet.Obtained from the Internet by the SGW of EPC
The specific implementation fetched data belongs to prior art, does not repeats them here.
BBU obtains after the Internet gets corresponding data, sends the data to
Described RRU, so that RRU sends the data to subscriber equipment.
By above-mentioned steps 201-210 it can be seen that the present invention is by the BBU in base station
Resource pool is disposed MCDN service node, by BBU by the service request of preset kind
It is sent to the MCDN service node of base station, so that the MCDN service node root of base station
According to described service request, from the BBU resource pool at this equipment place, obtain corresponding data,
When base station cannot provide related data resource, the network element device of request EPC provides corresponding
Data resource, if the network element device of EPC also cannot provide described data resource, then lead to
Cross legacy paths and obtain data resource from the Internet.The present invention utilizes the base station after virtualization
Resource is that MCDN service node is provided infrastructures resource so that MCDN system has
The functions such as flexible capacity reducing and dilatation.Business datum for the preset kind of subscriber equipment
Request, such as, the service request such as video, voice and big file, can be by base station
MCDN service node provides corresponding data, is avoided by 4G core to a certain extent
Heart net gateway, thus reduce mobile network communications burden, and, base station and subscriber equipment
Physical distance closer to, improve data transmission efficiency.
Further, in order to base station is sent, to UE, the MCDN flow that data are used
Carry out charging, and existing base station do not have the function of MCDN flow detection and charging,
Therefore, in the present invention, the MCDN service node of base station adds flow monitoring function,
Can with user in real use MCDN data traffic, and the cycle be uploaded to 4G core
Heart net EPC.
Concrete, described flow process is further comprising the steps of:
The MCDN service node of base station obtains the user carried in described service request and sets
Standby mark, detects and records RRU and send, to UE, the MCDN flow that described data use.
The MCDN service node of base station according to the cycle preset, by described customer equipment identification and
MCDN flow is sent to the SGW of 4G core net EPC.
Carry it should be noted that the MCDN service node of base station obtains in service request
Time of customer equipment identification do not limit, can obtain when receiving service request,
Can also obtain after the data got are sent to RRU.
The MCDN service node of base station to SGW periodic report MCDN flow so that
SGW carries out billing statistics according to MCDN flow, and the charging process of SGW belongs to existing
Technology, does not repeats them here.
Further, MCDN strategic server can be to the MCDN service node of base station
The data resource stored with the MCDN service node of EPC is managed collectively.Therefore,
The number that the MCDN service node of base station sends at the MCDN service node receiving EPC
According to afterwards, described method can also comprise the following steps:
The MCDN service node of base station determines whether according to MCDN content update strategy
Described data are stored in the BBU resource pool at this equipment place.Wherein, described MCDN
Content update strategy is stored in MCDN strategic server, and by MCDN strategy
Server is the MCDN service node configuration of base station.
MCDN content update strategy can be by Internet service provider's sets itself, such as, and can
To be pushed update content by MCDN strategic server to each MCDN service node, also
This locality can be updated when getting new data resource by the MCDN service node of base station
Data resource pond.
The present invention is given and a kind of disposes MCDN node in the eNodeB resource of cloud
Implementation method, the eNodeB of cloud has the advantages such as resource resilient expansion and unified management,
Can provide infrastructures resource for MCDN service node.MCDN infrastructure resources
Separating with software system, CDN operator is in the infrastructure resources that eNodeB provides
Carry out software system deployment and content operation.The present invention sets by analyzing mobile communication network element
Information problem of transmission between standby and MCDN service node, builds based on cloud eNodeB
MCDN UNE framework, utilize Intel Virtualization Technology to realize MCDN service node
Resource-sharing and system extension, thus improve LTE network and the reliability of MCDN system
And efficiency.
Based on identical technology design, the embodiment of the present invention also provides for a kind of content distribution system
System, as it is shown in figure 1, this system includes that base station, base station include: mobile content distribution networks
Network MCDN service node, multiple RF remote unit RRU, multiple baseband processing unit
BBU and BBU resource pool, the MCDN service node of base station is deployed in Base-Band Processing list
In unit's BBU resource pool.
RRU is used for, and receives the service request that subscriber equipment sends, and please by described business
Ask and be sent to BBU.
BBU is used for, it is judged that whether described service request is the service request of preset kind,
The most described service request is sent to the MCDN service node of base station.
The MCDN service node of base station is used for, and receives the service request that BBU sends,
Retrieve in the MCDN catalogue of this equipment according to described service request, if retrieving corresponding
Data directory, then from the BBU resource pool at this equipment place, obtain corresponding data,
And send the data to described RRU, so that RRU sends the data to user
Equipment.
Further, described content delivering system also includes the service of 4G core net EPC
Gateway SGW.
The MCDN service node of base station is additionally operable to, and obtains and carries in described service request
Customer equipment identification；And, detect and record described RRU and send to subscriber equipment described
The MCDN flow that data use；According to the default cycle, by described customer equipment identification
With the SGW that MCDN flow is sent to EPC.
Further, described content delivering system also includes the MCDN being deployed in EPC
Service node, the MCDN service node of base station leads to the MCDN service node of EPC
Cross private network direct-connected, form MCDN network.
The MCDN service node of base station is additionally operable to, when the MCDN service node of base station
In the MCDN catalogue of this equipment, corresponding data are not retrieved according to described service request
During index, described service request is sent to the MCDN service node of EPC；And,
Receive the data that the MCDN service node of EPC sends；And, described data are sent
To described RRU, so that RRU sends the data to subscriber equipment.
The MCDN service node of EPC is used for, and receives the MCDN service node of base station
The service request sent, examines in the MCDN catalogue of this equipment according to described service request
Rope, when retrieving corresponding data directory, obtains corresponding data and by described data
It is sent to the MCDN service node of base station.
Further, the MCDN service node of EPC is additionally operable to, when according to described business
When request does not retrieves corresponding data in the MCDN catalogue of this equipment, to base station
MCDN service node sends service request failure response.
The MCDN service node of base station is additionally operable to, and receives the MCDN service joint of EPC
The service request failure response that point sends, and described service request failure response is sent to
BBU, so that described service request is sent to the SGW of EPC by BBU.
Further, described content delivering system also includes MCDN strategic server,
MCDN strategic server is used for, and the MCDN service node for base station configures MCDN
Content update strategy.
The MCDN service node of base station is additionally operable to, according to MCDN content update strategy
Determine whether to store described data in the BBU resource pool at this equipment place.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present
And the illustrative embodiments used, but the invention is not limited in this.For ability
For those of ordinary skill in territory, in the situation without departing from spirit and substance of the present invention
Under, various modification and improvement can be made, these modification and improvement are also considered as the present invention's
Protection domain.
Claims (10)
1. a content distribution method, it is characterised in that the mobile content distribution networks of base station
Network MCDN service node is deployed in baseband processing unit BBU resource pool, described side
Method includes:
The MCDN service node of base station receives the service request that BBU sends；Described industry
Business request is that subscriber equipment is sent to RF remote unit RRU, RRU be sent to
BBU, and judged that described service request is to be sent to base station after preset kind by BBU
MCDN service node；
The MCDN service node of base station according to described service request at this equipment
MCDN catalogue is retrieved, if retrieving corresponding data directory, then from this equipment place
BBU resource pool in obtain corresponding data, and send the data to described
RRU, so that RRU sends the data to subscriber equipment.
2. the method for claim 1, it is characterised in that described method also includes:
The MCDN service node of base station obtains the user carried in described service request and sets
Standby mark；
Detect and record described RRU and send what described data used to subscriber equipment
MCDN flow；
According to the default cycle, described customer equipment identification and MCDN flow are sent to
The SGW of 4G core net EPC.
3. method as claimed in claim 1 or 2, it is characterised in that go back portion in EPC
There is MCDN service node in administration, the MCDN service node of base station and the MCDN of EPC
Service node is direct-connected by private network, forms MCDN network；
Described method also includes:
If the MCDN service node of base station according to described service request at this equipment
MCDN catalogue does not retrieves corresponding data directory, then described service request is sent
To the MCDN service node of EPC, so that the MCDN service node of EPC is according to institute
State service request to retrieve in the MCDN catalogue of this equipment；
Receiving the data that the MCDN service node of EPC sends, described data are EPC
MCDN service node in the MCDN catalogue of this equipment, retrieve corresponding data
Obtain during index and send；
Send the data to described RRU, so that RRU sends the data to
Subscriber equipment.
4. method as claimed in claim 3, it is characterised in that described business is being asked
After seeking the MCDN service node being sent to EPC, described method also includes:
The MCDN service node of base station receives the MCDN service node transmission of EPC
Service request failure response；Described service request failure response is the MCDN of described EPC
Service node sends when not retrieving corresponding data in the MCDN catalogue of this equipment；
Described service request failure response is sent to BBU, so that BBU is by described industry
Business request is sent to the SGW of EPC.
5. method as claimed in claim 3, it is characterised in that receiving EPC's
After the data that MCDN service node sends, described method also includes:
The MCDN service node of base station determines whether according to MCDN content update strategy
Described data are stored in the BBU resource pool at this equipment place；Wherein, described MCDN
Content update strategy is stored in MCDN strategic server, and by MCDN strategy
Server is the MCDN service node configuration of base station.
6. a content delivering system, it is characterised in that include that base station, base station include:
Mobile content distribution network MCDN service node, multiple RF remote unit RRU, many
Individual baseband processing unit BBU and BBU resource pool, the MCDN service node portion of base station
It is deployed in baseband processing unit BBU resource pool；
RRU is used for, and receives the service request that subscriber equipment sends, and please by described business
Ask and be sent to BBU；
BBU is used for, it is judged that whether described service request is the service request of preset kind,
The most described service request is sent to the MCDN service node of base station；
The MCDN service node of base station is used for, and receives the service request that BBU sends,
Retrieve in the MCDN catalogue of this equipment according to described service request, if retrieving corresponding
Data directory, then from the BBU resource pool at this equipment place, obtain corresponding data,
And send the data to described RRU, so that RRU sends the data to user
Equipment.
7. system as claimed in claim 6, it is characterised in that described system also includes
The gateway SGW of 4G core net EPC；
The MCDN service node of base station is additionally operable to, and obtains and carries in described service request
Customer equipment identification；And, detect and record described RRU and send to subscriber equipment described
The MCDN flow that data use；According to the default cycle, by described customer equipment identification
With the SGW that MCDN flow is sent to EPC.
System the most as claimed in claims 6 or 7, it is characterised in that also include disposing
At the MCDN service node of EPC, the MCDN service node of base station is with EPC's
MCDN service node is direct-connected by private network, forms MCDN network；
The MCDN service node of base station is additionally operable to, when the MCDN service node of base station
In the MCDN catalogue of this equipment, corresponding data are not retrieved according to described service request
During index, described service request is sent to the MCDN service node of EPC；And,
Receive the data that the MCDN service node of EPC sends；And, described data are sent
To described RRU, so that RRU sends the data to subscriber equipment；
The MCDN service node of EPC is used for, and receives the MCDN service node of base station
The service request sent, examines in the MCDN catalogue of this equipment according to described service request
Rope, when retrieving corresponding data directory, obtains corresponding data and by described data
It is sent to the MCDN service node of base station.
9. system as claimed in claim 8, it is characterised in that the MCDN of EPC
Service node is additionally operable to, when according to described service request in the MCDN catalogue of this equipment
When not retrieving corresponding data, the MCDN service node to base station sends service request and loses
Lose response；
The MCDN service node of base station is additionally operable to, and receives the MCDN service joint of EPC
The service request failure response that point sends, and described service request failure response is sent to
BBU, so that described service request is sent to the SGW of EPC by BBU.
10. system as claimed in claim 8, it is characterised in that also include MCDN
Strategic server, MCDN strategic server is used for, for the MCDN service node of base station
Configuration MCDN content update strategy；
The MCDN service node of base station is additionally operable to, according to MCDN content update strategy
Determine whether to store described data in the BBU resource pool at this equipment place.
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| CN201610151166.2A CN105847330A (en) | 2016-03-16 | 2016-03-16 | Content distribution method and system |
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| Application Number | Priority Date | Filing Date | Title |
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