CN106170967A

CN106170967A - A kind of media asset delivery Apparatus and method for

Info

Publication number: CN106170967A
Application number: CN201480033011.8A
Authority: CN
Inventors: 殷慧; 蔺同宇; 梁家伟; 田春长
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-12-30
Filing date: 2014-12-30
Publication date: 2016-11-30
Anticipated expiration: 2034-12-30
Also published as: WO2016106608A1; CN106170967B

Abstract

The present invention provides a kind of media asset delivery Apparatus and method for, is received the content request message of first user equipment by the first media asset delivery equipment, and the content request message of first user equipment comprises the information of content needed for first user equipment；Content needed for first user equipment is sent to first user equipment by the first media asset delivery equipment；Needed for first user equipment, content caching or is buffered in the second media asset delivery equipment in the first media asset delivery equipment；First media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.Thus realize the LAN dilatation of public transport, can support that more users download required content in this LAN, and when user's bandwidth resources contour to video demand is bigger, user directly obtains required content by download from the first media asset delivery equipment and the second media asset delivery equipment, improves the efficiency of transmission of high bandwidth resource.

Description

A kind of media asset delivery device and method

Technical field

It is used for media asset delivery device and method the present invention relates to wireless communication technology field, more particularly to one kind.

Background technology

With the development of mobile communication, MTR more with mobile operator cooperations, start subway 4G networking engineerings, to reach subway completely covering 4G, realize the purpose of the unimpeded access of subway signal.In addition the screen enlarging of intelligent mobile terminal, user is also increasing to the demand of mobile video.Subway uses the place occurred frequently of mobile Internet as smart mobile phone, and the flow of the people of huge flow of the people especially peak period causes the demand of the bandwidth of mobile video to be in a higher level.It is as follows to Vehicular video Prediction of Bandwidth Requirement at this：Often there are 70 concurrent users in section compartment according to estimates, and video user activity ratio is 10%, and single user video access bandwidth demand is 1.5M, therefore the bandwidth demand of bicycle case is 10.5M.Assuming that vehicle 6 saves compartment, base station covers 2 vehicles, therefore bandwidth demand under base station altogether is 126M.But a width of 20M of band provided from current 4G networks or so, much smaller than the bandwidth demand 126M that video is seen in subway.That is the bandwidth that mobile network is provided can not meet the bandwidth demand that subway sees video, this also exactly the problem to be solved in the present invention.

At present, in view of the above-mentioned problems, industry also gives a variety of solutions, wherein, content distributing network (Content Delivery Network, referred to as：CDN) as a kind of to make content transmission faster, the mechanism such as more stable, as the research direction paid close attention in industry.Specifically, CDN generally comprises two main parts, GSLB (the Global Server Load Balance, abbreviation of a concentration：GSLB) equipment and many border servers for being deployed in multiple positions.The content distribution mechanism of the CDN includes：UE DNS request can be relocated to GSLB equipment, and then GSLB equipment needs to select an optimal border server to provide service, such as UE geographical position, load condition of border server etc. for UE according to many factors.But content supplier and service provider need to have signing with CDN suppliers, content can be transferred to CDN border servers in advance or in real time.

But, for the CDN applied to public transport, when user provides to high bandwidths such as videos When source demand is larger, above-mentioned CDN mechanism reduces the efficiency of transmission of high bandwidth resource.

The content of the invention

The first aspect of the invention is to provide a kind of media asset delivery equipment, including：

Receiving module, the content request message for receiving the first user equipment, the content request message of first user equipment includes the information of content needed for first user equipment；

Sending module, for the information of the content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；

The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.

With reference to one side, in the first feasible implementation, the receiving module is additionally operable to before the content request message of the first user equipment is received, and receives the content resource that content distributing network global server CGS is sent.

With reference to the first feasible implementation of one side, in second of feasible implementation, cache module, for caching the content resource.

With reference to the first feasible implementation of one side, in the third feasible implementation, the sending module is additionally operable to the content resource being sent at least one described second media asset delivery equipment and cached.

With reference to any one above-mentioned feasible implementation of one side, in the 4th kind of feasible implementation, in addition to：

If the content resource is segmented content resource, processing module, for being complete content resource by the segmented content resource consolidation.

With reference to any one above-mentioned feasible implementation of one side, in the 5th kind of feasible implementation, the processing module, it is additionally operable to generate content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.

With reference to one side or the first feasible implementation of the first feasible implementation of one side or second aspect, in the 6th kind of feasible implementation, the receiving module, It is additionally operable to receive the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.

With reference to the 5th kind of feasible implementation or the 6th kind of feasible implementation of one side of one side, in the 7th kind of feasible implementation, the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.

With reference to the 5th kind of feasible implementation or the 6th kind of feasible implementation or the 7th kind of feasible implementation of one side of one side of one side, in the 8th kind of feasible implementation, processing module described in the first media asset delivery equipment, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, the sending module, content needed for being additionally operable to first user equipment that will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, the then processing module, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the sending module, it is additionally operable to forward to the second media asset delivery equipment transmission content and asks.

With reference to one side or any one above-mentioned feasible implementation of one side, in the 9th kind of feasible implementation, the processing module, the journal file of first user equipment is additionally operable to create and updates, the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the sending module is additionally operable to send the charge information of first user equipment to content distributing network global server CGS.

With reference to one side or any one above-mentioned feasible implementation of one side, in the tenth kind of feasible implementation, the receiving module, it is additionally operable to the information in sending module content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, the content request message of second user equipment is received, the content request message of the second user equipment includes the information of content needed for the second user equipment；

The processing module, the information for being additionally operable to content needed for determining the second user equipment is identical with the information of content needed for first user equipment

The sending module, is additionally operable to content needed for the second user equipment being sent to the second user equipment.

With reference to the tenth kind of feasible implementation of one side, in a kind of the tenth feasible implementation, the processing module, is additionally operable to create and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the sending module is additionally operable to send the charge information of the second user equipment to content distributing network global server CGS.

With reference to one side or any one above-mentioned feasible implementation of one side, in the 12nd kind of feasible implementation, the receiving module, is additionally operable to the breakpoint information of content needed for receiving first user equipment that first user equipment is sent；The sending module, is additionally operable to the breakpoint information of content needed for first user equipment being sent to base station；And/or,

The receiving module, is additionally operable to the breakpoint information of content needed for receiving the second user equipment that the second user equipment is sent；The sending module, is additionally operable to the breakpoint information of content needed for the second user equipment being sent to base station.

The second aspect of the invention is to provide a kind of media asset delivery equipment, including：

Receiver, the content request message for receiving the first user equipment, the content request message of first user equipment includes the information of content needed for first user equipment；

Transmitter, for the information of the content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

With reference to second aspect, in the first feasible implementation, the receiver is additionally operable to before the content request message of the first user equipment is received, and receives the content resource that content distributing network global server CGS is sent.

With reference to the first feasible implementation of second aspect, in second of feasible implementation, buffer, for caching the content resource.

With reference to the first feasible implementation of second aspect, in the third feasible implementation, the transmitter is additionally operable to the content resource being sent at least one described second media asset delivery equipment and cached.

With reference to any one above-mentioned feasible implementation of second aspect, in the 4th kind of feasible implementation, in addition to：

With reference to any one above-mentioned feasible implementation of second aspect, in the 5th kind of feasible implementation, the processor, it is additionally operable to generate content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.

With reference to the first feasible implementation of the first feasible implementation or second aspect of second aspect or second aspect, in the 6th kind of feasible implementation, the receiver, it is additionally operable to receive the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.

With reference to the 5th kind of feasible implementation or the 6th kind of feasible implementation of second aspect of second aspect, in the 7th kind of feasible implementation, the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.

With reference to the 5th kind of feasible implementation of second aspect or the 7th kind of feasible implementation of the 6th kind of feasible implementation of second aspect or second aspect, in the 8th kind of feasible implementation, processor described in the first media asset delivery equipment, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, the transmitter, content needed for being additionally operable to first user equipment that will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, the then processor, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the transmitter, it is additionally operable to forward to the second media asset delivery equipment transmission content and asks.

With reference to second aspect or any one above-mentioned feasible implementation of second aspect, in the 9th kind of feasible implementation, the processor, the journal file of first user equipment is additionally operable to create and updates, the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the transmitter is additionally operable to send the charge information of first user equipment to content distributing network global server CGS.

With reference to second aspect or any one above-mentioned feasible implementation of second aspect, in the tenth kind of feasible implementation, the receiver, it is additionally operable to the information in transmitter content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, the content request message of second user equipment is received, the content request message of the second user equipment includes the information of content needed for the second user equipment；

The processor, the information for being additionally operable to content needed for determining the second user equipment is identical with the information of content needed for first user equipment

The transmitter, is additionally operable to content needed for the second user equipment being sent to the second user equipment.

With reference to the tenth kind of feasible implementation of second aspect, in a kind of the tenth feasible implementation, the processor, is additionally operable to create and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the transmitter is additionally operable to send the charge information of the second user equipment to content distributing network global server CGS.

With reference to second aspect or any one above-mentioned feasible implementation of second aspect, in the 12nd kind of feasible implementation, the receiver is additionally operable to the breakpoint information of content needed for receiving first user equipment that first user equipment is sent；The transmitter, is additionally operable to the breakpoint information of content needed for first user equipment being sent to base station；And/or,

The receiver, is additionally operable to the breakpoint information of content needed for receiving the second user equipment that the second user equipment is sent；The transmitter, is additionally operable to the breakpoint information of content needed for the second user equipment being sent to base station.

The third aspect of the invention is to provide a kind of media asset delivery method, including：

First media asset delivery equipment receives the content request message of the first user equipment, and the content request message of first user equipment includes the information of content needed for first user equipment；

The information of first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

With reference to the 3rd aspect, in the first feasible implementation, before the content request message that the first media asset delivery equipment receives the first user equipment, in addition to：

The first media asset delivery equipment receives the content resource that content distributing network global server CGS is sent.

With reference to the first feasible implementation of the 3rd aspect, in second of feasible implementation, in addition to：The first media asset delivery equipment caches the content resource.

With reference to the first feasible implementation of the 3rd aspect, in the third feasible implementation, in addition to：

The content resource is sent at least one described second media asset delivery equipment and cached by the first media asset delivery equipment.

With reference to any one above-mentioned feasible implementation of the 3rd aspect, in the 4th kind of feasible implementation, the first media asset delivery equipment receives the content resource that content distributing network global server CGS is sent, including：

If the content resource is segmented content resource, the segmented content resource consolidation is complete content resource by the first media asset delivery equipment.

With reference to any one above-mentioned feasible implementation of the 3rd aspect, in the 5th kind of feasible implementation, in addition to：

The first media asset delivery equipment generates content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.

With reference to the first feasible implementation of the first feasible implementation or the 3rd aspect of the 3rd aspect or the 3rd aspect, in the 6th kind of feasible implementation, in addition to：

The first media asset delivery equipment receives the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.

With reference to the 5th kind of feasible implementation or the 6th kind of feasible implementation of the 3rd aspect of the 3rd aspect, in the 7th kind of feasible implementation, the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.

With reference to the 5th kind of feasible implementation of the 3rd aspect or the 7th kind of feasible implementation of the 6th kind of feasible implementation of the 3rd aspect or the 3rd aspect, in the 8th kind of feasible implementation, the information of first media asset delivery equipment content according to needed for first user equipment, content needed for first user equipment is sent to first user equipment, including：

Whether the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, content needed for first user equipment that the first media asset delivery equipment will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, whether the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the first media asset delivery equipment is forwarded to the second media asset delivery equipment transmission content and asked.

With reference to the 3rd aspect or any one above-mentioned feasible implementation of the 3rd aspect, in the 9th kind of feasible implementation, in addition to：

The first media asset delivery equipment creates and updates the journal file of first user equipment, and the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the first media asset delivery equipment sends the charge information of first user equipment to content distributing network global server CGS.

With reference to the 3rd aspect or any one above-mentioned feasible implementation of the 3rd aspect, in the tenth kind of feasible implementation, in the information of the first media asset delivery equipment content according to needed for first user equipment, content needed for first user equipment is sent to first user After equipment, in addition to：

The first media asset delivery equipment receives the content request message of second user equipment, and the content request message of the second user equipment includes the information of content needed for the second user equipment；

The information of content needed for the first media asset delivery equipment determines the second user equipment is identical with the information of content needed for first user equipment, then content needed for the second user equipment is sent into the second user equipment.

With reference to the tenth kind of feasible implementation of the 3rd aspect, in a kind of the tenth feasible implementation, in addition to：

The first media asset delivery equipment creates and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the first media asset delivery equipment sends the charge information of the second user equipment to content distributing network global server CGS.

With reference to the 3rd aspect or any one above-mentioned feasible implementation of the 3rd aspect, in the 12nd kind of feasible implementation, in addition to：

The breakpoint information of content needed for the first media asset delivery equipment receives first user equipment that first user equipment is sent；The breakpoint information of content needed for first user equipment is sent to base station by the first media asset delivery equipment；And/or,

The breakpoint information of content needed for the first media asset delivery equipment receives the second user equipment that the second user equipment is sent；The breakpoint information of content needed for the second user equipment is sent to base station by the first media asset delivery equipment.

Media asset delivery device and method provided in an embodiment of the present invention, the content request message of the first user equipment is received by the first media asset delivery equipment, the content request message of first user equipment includes the information of content needed for first user equipment；The information of first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.So as to realize the LAN dilatation for the public transport composition for carrying the first media asset delivery equipment and the second media asset delivery equipment, more users can be supported to download required content in the LAN, and when user needs to the high bandwidth resources such as video When asking larger, because the content needed for user has been buffered in the first media asset delivery equipment and the second media asset delivery equipment, therefore, user directly obtains required content by being downloaded from the first media asset delivery equipment and the second media asset delivery equipment, improves the efficiency of transmission of high bandwidth resource.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, one will be done to the required accompanying drawing used in embodiment or description of the prior art below simply to introduce, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of network architecture schematic diagram provided in an embodiment of the present invention；

Fig. 2 is logical architecture schematic diagram provided in an embodiment of the present invention；

Fig. 3 is SP networking schematic diagrams provided in an embodiment of the present invention；

Fig. 4 is SP user plane protocols Rotating fields schematic diagram provided in an embodiment of the present invention；

Fig. 5 is a kind of structural representation of media asset delivery equipment provided in an embodiment of the present invention；

Fig. 6 is the structural representation of another media asset delivery equipment provided in an embodiment of the present invention；

Fig. 7 is the structural representation of another media asset delivery equipment provided in an embodiment of the present invention；

Fig. 8 is a kind of schematic flow sheet of media asset delivery method provided in an embodiment of the present invention；

Fig. 9 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention；

Figure 10 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention；

Figure 11 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention

Figure 12 is a kind of service request interaction flow schematic diagram provided in an embodiment of the present invention；

Figure 13 is a kind of service request interaction flow schematic diagram provided in an embodiment of the present invention.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, belongs to the scope of protection of the invention.

In the prior art, CDN deploys border server in multiple positions, and by caching resource in border server, although can so save the resource between network and access network equipment (base station, eNB etc.)；But the radio open resource that existing CDN frameworks can not be saved between access network equipment and UE, therefore, for the CDN applied to public transport, when UE is larger to the high bandwidth resources demand such as video, radio open resource pressure between access network equipment and UE is excessive, so as to reduce the efficiency of transmission of high bandwidth resource, so that the transmission of video demand of user can not be met.Also, due to border server in the prior art caching independently of one another, therefore, also the effective mechanism of neither one cooperates with the resource of whole network to provide corresponding business service for a UE.

Fig. 1 is a kind of network architecture schematic diagram provided in an embodiment of the present invention, and reference picture 1, the network architecture includes：(CDN Global Server are referred to as CDN global servers：CGS), "Policy and Charging Rules Function unit (policy and charging rule function, abbreviation：PCRF), packet data gateway (Packet Data Network Gateway, abbreviation：P-GW), CDN Edge Servers (CDN edge Server, abbreviation：CES), host base station (Donor ENB, abbreviation：DeNB), intelligence node (Smart Point, abbreviation：SP), terminal；

Wherein, CGS is responsible for counting hot resource information, and resource is issued in vehicle-mounted SP by the QOS strategies then issued according to PCRF, and step is as follows：

Step0：The hot resource list of statistics is handed down to CDN border servers by CGS according to core network load situation and CDN border server states；

Step1：Resource is handed down to SP by CDN border servers according to the storage state of wireless access network bandwidth status and SP in idle；

Step2：UE obtains the resource prestored in the list of available resources of In-vehicle networking, request SP by APP；If not having the resource of request in the SP of UE accesses, SP can be by the resource forwarding in same in-car other SP to UE.

Optionally, terminal user accesses the vehicle-mounted resource in SP by special mobile phone A PP.

Further, Fig. 2 is logical architecture schematic diagram provided in an embodiment of the present invention, and reference picture 2, the function of each part in Logic Architecture is as follows：

CES function mainly includes three below part：

1st, the main SP of periodic collection centralized control unit (Center Control Unit, abbreviation：CCU the journal file) collected (includes each user's accounting-related information, each SP storage states, every time row Resource that car possesses etc.) and CES collect each edge network status information.Arrange these statistical informations and forward it to CGS preservations.

2nd, CES receives and stored the hot resource that CGS is issued.

3rd, hot resource is issued in SP by CES according to SP storage state and network state information in network idle.

CGS function mainly includes following 4 parts：

1st, CGS is responsible for certification, authorizes, proposes APP download services, service propelling service；

2nd, popular video is counted, the Resources list is generated, and hot resource and the Resources list are being handed down to CES.

3rd, the statistical information that processing CES is sent.Information related to charging CGS is extracted, and the charging regulation issued according to PCRF is each user's charging；CGS issues the hot resource of statistics according to the status information of core net to CES.

4th, have permission and SP is configured, media content is modified as deleted, push/renewal media content.

Fig. 3 is SP networking schematic diagrams provided in an embodiment of the present invention, and reference picture 3 as shown above, uses centerized fusion, the networking mode of distributed storage between vehicle-mounted multiple SP.Vehicle-mounted SP is divided to includes CCU functional units for major-minor two kinds of SP, main SP, can be with the vehicle-mounted other SP of centralized Control.Resource, which can be stored between each SP server functions, SP, uses wired connection mode.

Reference picture 3, SP receives the resource that SP is issued to from CES, and is stored in local server；Wherein main SP CCU is connected with auxiliary SP server, to manage each server, is responsible for the storage of distribution of resource formula and is integrated.When the resource that home server does not have unnecessary space storage newly to receive, by free memories of the CCU according to each vehicle-mounted SP, control home server stores the resource newly received into suitable SP.Due to the mobility of subway, it is understood that there may be a complete video resource has been distributed to the situation in different SP.In this case, it will be also responsible for by CCU by resource consolidation into complete resource, and stored it in suitable SP；CCU should be responsible for counting the resource in all servers, generate the Resources list, the Resources list then is distributed into each server.When UE asks resource to server, the server that can be navigated to rapidly where resource, then resource is sent by server；Statistics (Statistic, referred to as：Stat) unit is responsible for counting flow service condition, temporal information of each user etc., for charging；Server by L-GW be converted into suitable form issue UE request vehicle-mounted resource, SP receiving terminals RX receive resource is converted into suitably by L-GW Form is stored in the server；The wired connection of transmitting terminal can ensure that the resource under any server can be transmitted to corresponding UE, realize the shared of vehicle-mounted resource.The wired connection of transmitting terminal is also to realize the key of the storage of resource distribution formula and resource consolidation.

The function that CCU is included is as follows：

1st, each SP storage resource service condition is stored；

2nd, the Resources list that all SP of this car can be provided is stored, and indicates the position (the URL addresses of i.e. each resource) of each resource storage.

3rd, when CES issues new resource, resource is carried out resource updates (priority is inversely proportional with the time, is directly proportional to clicking rate) by CCU according to space needed for new hair resource according to priority.

4th, distributed resource storage and resource consolidation：CCU is responsible for control and hot resource distributed storage is neutralized a resource consolidation of subsection receiing into full resource and is stored in a SP in each vehicle-mounted SP.

Fig. 4 is SP user plane protocols Rotating fields schematic diagram provided in an embodiment of the present invention, reference picture 4, UE can have application layer (APP), transmission control protocol/UDP (Transmission Control Protocol/User Datagram Protocol, abbreviation：TCP/UDP) layer, Internet protocol (Internet Protocol, abbreviation：IP) layer, PDCP (Packet Data Convergence Protocol, abbreviation：PDCP), wireless chain control layer agreement (Radio Link Control, abbreviation：RLC) layer, media intervention control (Media Access Control, abbreviation：MAC) layer, physical layer (PHY)；SP can have PDCP layer, rlc layer, MAC layer, PHY layer, APP layers, TCP/UDP layers, IP layers, GPRS Tunnel Protocol user plane (GPRS Tunnelling Protocol-User plane, abbreviation：GTP-U) layer, UDP layer, IP layers, PDCP layers, rlc layer, MAC layer, PHY layer；DeNB can have GTP-U layers, UDP layer, IP layers, PDCP layers, rlc layer, MAC layer, PHY layer, L2 layers, L1 layers；P-GW/S-GW layers can have IP layers, GTP-U layers, UDP layer, IP layers, L2 layers, L1 layers.Wherein, the resource that core net is issued to SP is reduced into the server that APP layers of data have SP first.When UE asks resource, resource is encapsulated into IP layers from APP layers again and issues UE by SP transmitting terminal.

SP described above is specifically described below by specific embodiment, it should be noted that, hereinafter the first media asset delivery equipment and the second media asset delivery equipment are SP, and the first media asset delivery equipment and the second media asset delivery equipment possess main SP described above and auxiliary SP function.

Fig. 5 is a kind of structural representation of media asset delivery equipment provided in an embodiment of the present invention, and the media asset delivery equipment is SP described above, and the SP is arranged in the public transport of the high-speed mobiles such as subway, high ferro, and reference picture 5, the equipment includes：Receiving module 100, sending module 101；

Receiving module 100, the content request message for receiving the first user equipment, the content request message of first user equipment includes the information of content needed for first user equipment；

Sending module 101, for the information of the content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Media asset delivery equipment provided in an embodiment of the present invention, the content request message of the first user equipment is received by receiving module, and the content request message of first user equipment includes the information of content needed for first user equipment；The information of sending module content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.So as to realize the LAN dilatation for the public transport composition for carrying the first media asset delivery equipment and the second media asset delivery equipment, more users can be supported to download required content in the LAN, and when user is larger to the high bandwidth resources demand such as video, because the content needed for user has been buffered in the first media asset delivery equipment and the second media asset delivery equipment, therefore, user directly obtains required content by being downloaded from the first media asset delivery equipment and the second media asset delivery equipment, improve the efficiency of transmission of high bandwidth resource.

It should be noted that the scheme that each embodiment of the invention is provided, can not only use in subway scene, be readily applicable to other vehicles, for example, high ferro, steamer, aircraft etc..

It is preferred that, the receiving module 100 is additionally operable to before the content request message of the first user equipment is received, and receives the content resource that content distributing network global server CGS is sent.

Further, when the first media asset delivery equipment is main SP or auxiliary SP, it has different functions, and different functions is introduced below.

On the basis of Fig. 5, Fig. 6 is the structural representation of another media asset delivery equipment provided in an embodiment of the present invention, with reference to 6, the equipment, in addition to：Cache module 102, processing module 103；

Cache module 102, for caching the content resource.

Specifically, supplemented by the media asset delivery equipment shown in Fig. 5 during SP, cache module 102 caches the content resource, or, the sending module 101 is additionally operable to the content resource being sent at least one described second media asset delivery equipment and cached.

Further, i.e., when the media asset delivery equipment shown in Fig. 5 is main SP, the media asset delivery equipment has the function of controlling and distribute content resource storage：

If the content resource is segmented content resource, the processing module 103, for being complete content resource by the segmented content resource consolidation.

So as to realize the distributed storage of content resource, so as to realize that the SP in whole public transport can provide resource downloading service for same user, resource utilization is improved.

Further, the processing module 103, is additionally operable to generate content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.

Accordingly, supplemented by the media asset delivery equipment shown in Fig. 5 or Fig. 6 during SP, the receiving module 100, it is additionally operable to receive the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.

Optionally, the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.

Further, the processing module 103, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, the sending module 101, content needed for being additionally operable to first user equipment that will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, the then processing module 103, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the sending module 101 is additionally operable to forward to the second media asset delivery equipment transmission content and asked.

Specifically, after being asked to the second media asset delivery equipment transmission content forwarding, the content as needed for the second media asset delivery equipment by first user equipment is sent to the receiving module 100.

Optionally, the media asset delivery equipment shown in Fig. 5 or Fig. 6 also has billing function：

The processing module 103, is additionally operable to create and updates the journal file of first user equipment, and the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the sending module 101 is additionally operable to send the charge information of first user equipment to content distributing network global server CGS.

Further, when identical content resource is by different user equipment requests, the content resource of caching can be sent to other user equipmenies by Fig. 5 or Fig. 6 media asset deliveries equipment：

The receiving module 100, it is additionally operable to the information in the sending module 101 content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, the content request message of second user equipment is received, the content request message of the second user equipment includes the information of content needed for the second user equipment；

The processing module 103, the information for being additionally operable to content needed for determining the second user equipment is identical with the information of content needed for first user equipment

The sending module 101, is additionally operable to content needed for the second user equipment being sent to the second user equipment.

Further, the processing module 103, is additionally operable to create and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the sending module 101 is additionally operable to send the charge information of the second user equipment to content distributing network global server CGS.

Because UE has mobility, may be just mobile except the public transport where the first media asset delivery equipment before content resource is downloaded needed for completing, now, in order to ensure business continuance, the media asset delivery equipment shown in described Fig. 5 or Fig. 6 also has following function：

The receiving module 100, is additionally operable to the breakpoint information of content needed for receiving first user equipment that first user equipment is sent；The sending module 101, is additionally operable to first user The breakpoint information of content needed for equipment is sent to base station；And/or,

The receiving module 100, is additionally operable to the breakpoint information of content needed for receiving the second user equipment that the second user equipment is sent；The sending module 101, is additionally operable to the breakpoint information of content needed for the second user equipment being sent to base station.

In addition, above-mentioned media asset delivery equipment, either the first media asset delivery equipment or, the second media asset delivery equipment, the embodiment of the present invention also provides another feasible implementation：Fig. 7 is the structural representation of another media asset delivery equipment provided in an embodiment of the present invention, and reference picture 7, the equipment includes：Receiver 200, transmitter 201, processor 202, buffer 203；

Wherein, receiver 200 can have the corresponding function of receiving module 100 shown in figure 5 above or Fig. 6；Transmitter 201 can have the corresponding function of sending module 101 shown in figure 5 above or Fig. 6；Processor 202 can have the corresponding function of processing module 103 shown in figure 6 above；Buffer 203 can have the corresponding function of cache module 102 shown in figure 6 above.

Fig. 8 is a kind of schematic flow sheet of media asset delivery method provided in an embodiment of the present invention, this method executive agent is that the first media asset delivery equipment is SP described above, the SP is arranged in the public transport of the high-speed mobiles such as subway, high ferro, can be using the structure shown in figure 3 above or Fig. 5 or Fig. 6 or Fig. 7, reference picture 8, this method comprises the following steps：

Step 100, the first media asset delivery equipment receive the content request message of the first user equipment, and the content request message of first user equipment includes the information of content needed for first user equipment；

The information of step 101, the first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Media asset delivery method provided in an embodiment of the present invention, the content request message of the first user equipment is received by the first media asset delivery equipment, and the content request message of first user equipment includes the information of content needed for first user equipment；The information of first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；Wherein, content caching needed for first user equipment is in first media In resource transmission equipment or it is buffered in the second media asset delivery equipment；The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.So as to realize the LAN dilatation for the public transport composition for carrying the first media asset delivery equipment and the second media asset delivery equipment, more users can be supported to download required content in the LAN, and when user is larger to the high bandwidth resources demand such as video, because the content needed for user has been buffered in the first media asset delivery equipment and the second media asset delivery equipment, therefore, user directly obtains required content by being downloaded from the first media asset delivery equipment and the second media asset delivery equipment, improve the efficiency of transmission of high bandwidth resource.

It is preferred that, on the basis of Fig. 8, Fig. 9 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention, wherein, first media asset delivery equipment and the second media asset delivery equipment can be using the structures shown in figure 3 above or Fig. 5 or Fig. 6 or Fig. 7, reference picture 9, before step 100, in addition to：

Step 102, the first media asset delivery equipment receive the content resource that content distributing network global server CGS is sent.

In network spare time, content resource is sent to the first media asset delivery equipment, adds broadband utilization rate by CGS.

Supplemented by the first media asset delivery equipment during SP, when completing above-mentioned steps 102, the first media asset delivery equipment caches the content resource.

When the first media asset delivery equipment is main SP, when completing above-mentioned steps 102, further comprise：

The content resource is sent at least one described second media asset delivery equipment and cached by step 103, the first media asset delivery equipment.

I.e. when the first media asset delivery equipment is main SP, the first media asset delivery equipment has the function of controlling and distribute content resource storage.So as to realize the distributed storage of content resource, so as to realize that the SP in whole public transport can provide resource downloading for same user Service, improves resource utilization.It should be noted that step 103 is not shown in the figure.

Further, if the content resource is segmented content resource, the segmented content resource consolidation is complete content resource by the first media asset delivery equipment.

And, when the first media asset delivery equipment is main SP, the first media asset delivery equipment generates content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.

Accordingly, supplemented by the first media asset delivery equipment during SP, the first media asset delivery equipment receives the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.

Specifically, for precedence information, its priority indicated can be inversely proportional with the corresponding content resource generation time, is directly proportional to the clicking rate of the content resource.Certainly, the embodiment of the present invention is not defined for the implementation of precedence information, and Hot Contents are preferentially presented into user as long as disclosure satisfy that.

On the basis of Fig. 8, Figure 10 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention, wherein, first media asset delivery equipment and the second media asset delivery equipment can be using the structures shown in figure 3 above or Fig. 5 or Fig. 6 or Fig. 7, reference picture 10, a kind of feasible implementation of step 101 is：

Whether step 101a, the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment have been buffered in the first media asset delivery equipment；

If step 101b, being buffered in the first media asset delivery equipment, content needed for first user equipment that the first media asset delivery equipment will be buffered in the first media asset delivery equipment is sent to first user equipment；

If step 101c, uncached in the first media asset delivery equipment, whether the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If step 101d, being buffered in the second media asset delivery equipment, the first media asset delivery equipment is forwarded to the second media asset delivery equipment transmission content and asked.

Specifically, after being asked to the second media asset delivery equipment transmission content forwarding, the content as needed for the second media asset delivery equipment by first user equipment is sent to first user equipment.

If it should be noted that content needed for first user equipment is uncached in the second media asset delivery equipment, the first media asset delivery equipment asks content needed for issuing first user equipment to CES.It should be noted that the step shown in Figure 10 can also be shown on the basis of Fig. 9.

Optionally, the first media asset delivery equipment also has billing function, and a kind of feasible implementation is：

Further, when identical content resource is by different user equipment requests, the content resource of caching can be sent to other user equipmenies by the first media asset delivery equipment.On the basis of Fig. 8, Figure 11 is the schematic flow sheet of another media asset delivery method provided in an embodiment of the present invention, wherein, first media asset delivery equipment and the second media asset delivery equipment can be using the structures shown in figure 3 above or Fig. 5 or Fig. 6 or Fig. 7, reference picture 11, after step 101, in addition to：

Step 104, the first media asset delivery equipment receive the content request message of second user equipment, and the content request message of the second user equipment includes the information of content needed for the second user equipment；

The information of content is identical with the information of content needed for first user equipment needed for step 105, the first media asset delivery equipment determine the second user equipment, then content needed for the second user equipment is sent into the second user equipment.

Accordingly, the first media asset delivery equipment creates and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；After the service conversation of first user equipment terminates, the first media asset delivery equipment The charge information of the second user equipment is sent to content distributing network global server CGS.

It should be noted that Figure 11 can also be realized with reference to the step shown in Fig. 9 or Figure 10.

Because UE has mobility, may be just mobile except the public transport where the first media asset delivery equipment before content resource is downloaded needed for completing, now, in order to ensure business continuance, the first media asset delivery equipment also has following function：

Below by specific embodiment, illustrated for the interaction flow of the network architecture and SP described above.

Figure 12 be a kind of service request interaction flow schematic diagram provided in an embodiment of the present invention, reference picture 12, the present embodiment is by taking two UE (UE1 and UE1), two SP (SP2 and SP3), CES and CGS as an example.The interaction flow comprises the following steps：

Step 1, UE1 initiate content requests to SP2；

Whether step 2, SP2 judge request content in this SP；

Specifically, if so, then performing step 3；Otherwise step 4 is performed；

Step 3, UE1 carry out content download from SP2；

Whether step 4, SP2 judge request content in other SP；

If specifically, in other SP, being transmitted to the SP3 content requests, the content requests otherwise being transmitted into CES；

The request content is sent to SP2 and has SP2 to be transmitted to UE1 by step 5, SP3；

Step 6, SP2 download resource from CES, obtain the request content；

Specifically, CES judges whether it has request resource.Request content is sent to SP2 if having.

It should be noted that step 5 and 6 selects an execution according to the judgement of step 4.

The caching resource that step 7, SP2 will be downloaded from CES.

Step 8, SP2 forward resource to UE1；

Step 9, SP2 carry out the establishment of UE1 journal files and renewal, wherein containing charging correlation letter Breath.

Step 10, UE1 business reply terminate.

Step 11, UE2 requests and UE1 identical resources；

Step 12, SP2 respond requests, down distributing resource is to UE2；

Step 13, SP2 carry out the establishment of UE2 journal files and renewal, wherein containing accounting-related information.

Step 14, UE2 business reply terminate.

Step 15, SP2 periodically report UE1 and UE2 journal files.

It should be noted that SP2 can also upload UE1 and UE2 journal files respectively.

Specifically, UE1 first asks resource to access SP2, if there is requested resource in SP2, then resource is directly handed down to UE1 by SP2, if resource is not in SP2, SP2 retrieves requested resource whether in other vehicle-mounted SP by vehicle-mounted the Resources list of storage inside, forwards video resource request to arrive SP3 if (SP3 is assumed to be) in other vehicle-mounted SP, resource is forwarded in UE1 by SP3 by resource by the wired connection between SP2 by SP2 transmission interface.If not having the resource of request in vehicle-mounted SP, access SP asks resource to CES again, and UE1 is transmitted to by SP2 if CES contains requested resource.The resource that SP2 cachings are downloaded from CES simultaneously, and inform that main SP updates the Resources list of vehicle.Such case occurs when core net is issued to CES hot resource and is not issued to completely in vehicle-mounted SP.During down distributing resource, SP2 can carry out the establishment and renewal of UE1 journal files, and journal file, which is included, is used for the relevant informations (flow information as used in UE1 enjoys this business) such as charging.After UE1 service conversations terminate, if there are other UE (being assumed to be UE2) to ask identical resource, resource can be directly handed down to UE2 from vehicle-mounted SP, while carrying out the establishment and renewal of UE2 journal files.The journal file of user can regularly report CGS in network idle, and CGS carries out charging further according to the charging policy that PCRF is issued to user.

The temperature of pre-stored resource and the guiding function of APP list displays, enable a resource that SP is stored repeatedly to download.The people of download is more, and cost is lower, but charging is charged by each user is unified, therefore number of users is more, and income is bigger.

Figure 13 be a kind of service request interaction flow schematic diagram provided in an embodiment of the present invention, reference picture 13, the present embodiment is by taking a UE, SP, DeNB and CES as an example.The interaction flow comprises the following steps：

Step 1, UE and SP content requests are completed, during content is downloaded.

Step 2, user arrive at a station to get off and changed into, and UE switches, and are linked into the DeNB of platform；

Step 3, UE report UE foradownloaded video breakpoints；

Step 4, DeNB forwarding UE foradownloaded video breakpoints；

Step 5, CES resume breakpoint resource；

Step 6, DeNB will resume breakpoint resource forwarding to UE；

Step 7, UE contents, which are downloaded, to be completed, and terminates reply.

If user is changed to before reply terminates to another subway, by UE in switching, breakpoint information is transferred to the vehicle-mounted SP of the next accesses of UE.Realize breakpoint transmission.

Specifically, when user takes the subway and arrives at a station transfer, UE switches, and is linked into the DeNB near subway station.After the completion of switching, the breakpoint of foradownloaded video is reported DeNB by UE, and DeNB relays to CES.Because CES includes all hot resources, therefore the breakpoint transmission of video can be realized according to the video endpoint reported.Finally, content, which is downloaded, completes to terminate session.If user changes to another before conversation end and plowed in iron, the vehicle-mounted SP that breakpoint information is equally transferred to the next accesses of UE by UE, breakpoint transmission is realized.

Therefore base station boundaries caching is that CES can ensure the continuity of business during transfer.Each CES is comprising all the elements in the Resources list, when user changes to, and feeds back to CES by breakpoint is downloaded by SP, realizes that video is resumed by CES.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in a computer read/write memory medium, and the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

A kind of media asset delivery equipment, it is characterised in that including：

Receiving module, the content request message for receiving the first user equipment, the content request message of first user equipment includes the information of content needed for first user equipment；

Sending module, for the information of the content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；

The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.
Equipment according to claim 1, it is characterised in that the receiving module, is additionally operable to before the content request message of the first user equipment is received, and receives the content resource that content distributing network global server CGS is sent.
Equipment according to claim 2, it is characterised in that cache module, for caching the content resource.
Equipment according to claim 2, it is characterised in that the sending module, is additionally operable to the content resource being sent at least one described second media asset delivery equipment and is cached.
Equipment according to claim 2-4 any one, it is characterised in that also include：

If the content resource is segmented content resource, processing module, for being complete content resource by the segmented content resource consolidation.
Equipment according to claim 2-5 any one, it is characterized in that, the processing module, is additionally operable to generate content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.
Equipment according to claim 1-3 any one, it is characterized in that, the receiving module, it is additionally operable to receive the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.
Equipment according to claim 6 or 7, it is characterised in that the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.
Equipment according to claim 6-8 any one, it is characterised in that first matchmaker Processing module described in body resource transmission equipment, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, the sending module, content needed for being additionally operable to first user equipment that will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, the then processing module, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the sending module, it is additionally operable to forward to the second media asset delivery equipment transmission content and asks.
Equipment according to claim 1-9 any one, it is characterised in that the processing module, is additionally operable to create and updates the journal file of first user equipment, and the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the sending module is additionally operable to send the charge information of first user equipment to content distributing network global server CGS.
Equipment according to claim 1-10 any one, it is characterized in that, the receiving module, it is additionally operable to the information in sending module content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, the content request message of second user equipment is received, the content request message of the second user equipment includes the information of content needed for the second user equipment；

The processing module, the information for being additionally operable to content needed for determining the second user equipment is identical with the information of content needed for first user equipment

The sending module, is additionally operable to content needed for the second user equipment being sent to the second user equipment.
Equipment according to claim 11, it is characterised in that the processing module, is additionally operable to create and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the sending module is additionally operable to send the charge information of the second user equipment to content distributing network global server CGS.
Equipment according to claim 1-12 any one, it is characterised in that the receiving module, is additionally operable to the breakpoint information of content needed for receiving first user equipment that first user equipment is sent；The sending module, is additionally operable to the breakpoint information of content needed for first user equipment being sent to base station；And/or,

The receiving module, is additionally operable to the breakpoint information of content needed for receiving the second user equipment that the second user equipment is sent；The sending module, is additionally operable to the breakpoint information of content needed for the second user equipment being sent to base station.
A kind of media asset delivery equipment, it is characterised in that including：

Receiver, the content request message for receiving the first user equipment, the content request message of first user equipment includes the information of content needed for first user equipment；

Transmitter, for the information of the content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；

The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.
Equipment according to claim 14, it is characterised in that the receiver, is additionally operable to before the content request message of the first user equipment is received, and receives the content resource that content distributing network global server CGS is sent.
Equipment according to claim 15, it is characterised in that buffer, for caching the content resource.
Equipment according to claim 15, it is characterised in that the transmitter, is additionally operable to the content resource being sent at least one described second media asset delivery equipment and is cached.
Equipment according to claim 15-17 any one, it is characterised in that also include：

If the content resource is segmented content resource, processing module, for being complete content resource by the segmented content resource consolidation.
Equipment according to claim 15-18 any one, it is characterized in that, the processor, is additionally operable to generate content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.
Equipment according to claim 14-16 any one, it is characterised in that described to connect Device is received, is additionally operable to receive the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.
Equipment according to claim 19 or 20, it is characterised in that the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.
Equipment according to claim 19-21 any one, it is characterized in that, processor described in the first media asset delivery equipment, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, the transmitter, content needed for being additionally operable to first user equipment that will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, the then processor, is additionally operable to whether content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the transmitter, it is additionally operable to forward to the second media asset delivery equipment transmission content and asks.
Equipment according to claim 14-22 any one, it is characterised in that the processor, is additionally operable to create and updates the journal file of first user equipment, and the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the transmitter is additionally operable to send the charge information of first user equipment to content distributing network global server CGS.
Equipment according to claim 14-23 any one, it is characterized in that, the receiver, it is additionally operable to the information in transmitter content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, the content request message of second user equipment is received, the content request message of the second user equipment includes the information of content needed for the second user equipment；

The processor, the information for being additionally operable to content needed for determining the second user equipment is identical with the information of content needed for first user equipment

The transmitter, is additionally operable to content needed for the second user equipment being sent to second use Family equipment.
Equipment according to claim 24, it is characterised in that the processor, is additionally operable to create and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the transmitter is additionally operable to send the charge information of the second user equipment to content distributing network global server CGS.
Equipment according to claim 14-25 any one, it is characterised in that the receiver, is additionally operable to the breakpoint information of content needed for receiving first user equipment that first user equipment is sent；The transmitter, is additionally operable to the breakpoint information of content needed for first user equipment being sent to base station；And/or,

The receiver, is additionally operable to the breakpoint information of content needed for receiving the second user equipment that the second user equipment is sent；The transmitter, is additionally operable to the breakpoint information of content needed for the second user equipment being sent to base station.
A kind of media asset delivery method, it is characterised in that including：

First media asset delivery equipment receives the content request message of the first user equipment, and the content request message of first user equipment includes the information of content needed for first user equipment；

The information of first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment；

Wherein, content caching needed for first user equipment is in the first media asset delivery equipment or is buffered in the second media asset delivery equipment；

The first media asset delivery equipment and the second media asset delivery equipment are arranged in public transport residing for first user equipment.
Method according to claim 27, it is characterised in that before the content request message that the first media asset delivery equipment receives the first user equipment, in addition to：

The first media asset delivery equipment receives the content resource that content distributing network global server CGS is sent.
Method according to claim 28, it is characterised in that also include：

The first media asset delivery equipment caches the content resource.
Method according to claim 28, it is characterised in that also include：

The first media asset delivery equipment by the content resource be sent at least one described Two media asset delivery equipment are cached.
Method according to claim 28-30 any one, it is characterised in that the first media asset delivery equipment receives the content resource that content distributing network global server CGS is sent, including：

If the content resource is segmented content resource, the segmented content resource consolidation is complete content resource by the first media asset delivery equipment.
Method according to claim 28-31 any one, it is characterised in that also include：

The first media asset delivery equipment generates content resource list, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment according to the content resource.
Method according to claim 27-29 any one, it is characterised in that also include：

The first media asset delivery equipment receives the content resource list that the second media asset delivery equipment is sent, the index information and positional information of the content resource that the content resource list is cached comprising total medium resource transmission equipment.
Method according to claim 32 or 33, it is characterised in that the content resource list also includes the precedence information for the content resource that total medium resource transmission equipment is cached.
Method according to claim 32-34 any one, it is characterised in that the information of the first media asset delivery equipment content according to needed for first user equipment, first user equipment is sent to by content needed for first user equipment, including：

Whether the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the first media asset delivery equipment；

If being buffered in the first media asset delivery equipment, content needed for first user equipment that the first media asset delivery equipment will be buffered in the first media asset delivery equipment is sent to first user equipment；

If uncached in the first media asset delivery equipment, whether the first media asset delivery equipment content needed for the information of content and the content resource list judge first user equipment according to needed for first user equipment has been buffered in the second media asset delivery equipment；

If being buffered in the second media asset delivery equipment, the first media asset delivery equipment is forwarded to the second media asset delivery equipment transmission content and asked.
Method according to claim 27-35 any one, it is characterised in that also include：

The first media asset delivery equipment creates and updates the journal file of first user equipment, and the journal file of first user equipment includes the charge information of first user equipment；

After the service conversation of first user equipment terminates, the first media asset delivery equipment sends the charge information of first user equipment to content distributing network global server CGS.
Method according to claim 27-36 any one, it is characterized in that, in the information of the first media asset delivery equipment content according to needed for first user equipment, content needed for first user equipment is sent to after first user equipment, in addition to：

The first media asset delivery equipment receives the content request message of second user equipment, and the content request message of the second user equipment includes the information of content needed for the second user equipment；

The information of content needed for the first media asset delivery equipment determines the second user equipment is identical with the information of content needed for first user equipment, then content needed for the second user equipment is sent into the second user equipment.
Method according to claim 37, it is characterised in that also include：

The first media asset delivery equipment creates and updates the journal file of the second user equipment, and the journal file of the second user equipment includes the charge information of the second user equipment；

After the service conversation of first user equipment terminates, the first media asset delivery equipment sends the charge information of the second user equipment to content distributing network global server CGS.
Method according to claim 27-38 any one, it is characterised in that also include：

The breakpoint information of content needed for the first media asset delivery equipment receives first user equipment that first user equipment is sent；The breakpoint information of content needed for first user equipment is sent to base station by the first media asset delivery equipment；And/or,

The breakpoint information of content needed for the first media asset delivery equipment receives the second user equipment that the second user equipment is sent；The breakpoint information of content needed for the second user equipment is sent to base station by the first media asset delivery equipment.