CN106341892A - Content distribution implementing method and device - Google Patents
Content distribution implementing method and device Download PDFInfo
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- CN106341892A CN106341892A CN201510408188.8A CN201510408188A CN106341892A CN 106341892 A CN106341892 A CN 106341892A CN 201510408188 A CN201510408188 A CN 201510408188A CN 106341892 A CN106341892 A CN 106341892A
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- equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
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Abstract
The invention discloses a content distribution implementing method and device. The method comprises the steps that a request device establishes point-to-point D2D connection with two or more sharing devices respectively; the request device divides a request content into sub blocks which are one-to-one corresponding to the sharing devices according to a pre-set blocking policy, and notifies each sharing device; and each sharing device sends a notified sub block to the request device. According to the technical scheme provided by the invention, the load of each sharing device is reduced; the processing performance of each sharing device is well ensured; and the user experience of each sharing device is well ensured.
Description
Technical field
The present invention relates to third generation partner program (3gpp, 3rd generation partnership
Project) technology, in espespecially a kind of equipment room direction communication, the method and apparatus of realizing content distribution.
Background technology
In order to reduce equipment as between mobile terminal data traffic rapidly increase and bring to mobile communications network
Burden, 3gpp agreement introduces the communication of equipment room direction communication (d2d, device to device)
Mode.Equipment room direction communication refers to, only carries out Signalling exchange, equipment by base station between nearby device
Between data transfer relay forwarding need not be carried out by base station and directly be transmitted in equipment room.It is not difficult
Find out, the file distributing such as content distribution such as video are realized by equipment room direction communication, reduces base station
Burden, improves the disposal ability for data communication for the mobile network.
3gpp agreement has respectively provided point-to-point d2d communication and the communication of point-to-multipoint d2d.Point-to-point
D2d communication refers to, a request equipment is shared equipment from one and obtained request content.Point-to-multipoint d2d
Communication refers to, two or more request equipment obtain same requested content from same equipment of sharing.
Wherein, request equipment is the equipment of acquisition request request content, and sharing equipment is to be ready to share request content
Equipment.
In the scene of point-to-point d2d, relate generally to request equipment pass through based on close on service (prose,
Proximity-based services) server with share equipment set up point-to-point d2d be connected (hereinafter will
The point-to-point d2d of foundation connect be referred to as built connection), request equipment be built connect calculate communication
Resource simultaneously asks prose server to be the built connection distribution communication resource and share equipment to request equipment
Send request content.Wherein, prose server is the server for servicing d2d, is arranged at network
Side.
The above-mentioned flow process setting up d2d connection specifically includes that equipment finds and connection establishment.Wherein, setting
During preparation is existing, 3gpp agreement supports request equipment while asking discovery to share equipment, request
Additional information.
The flow process of the above-mentioned distribution communication resource generally comprises: request equipment calculates the transfer rate of built connection,
Obtain channel condition information (csi, the channel state of built connection by prose server
Information), the communication money of built connection is determined according to the transfer rate calculating and the csi asking
Source, and ask the communication resource that prose server is that built connection distribution calculates；Prose server connects
After receiving above-mentioned request, distribute the communication resource for request equipment with sharing equipment.Wherein it is determined that communication money
Source includes: channel speed is determined according to csi, and by the communication resource be set to the transfer rate that calculates with
The ratio of the channel speed determined.Here, the unit of channel speed is bit/s/hz, and that is, bits per second is every
Hertz, the unit of transfer rate is bit/s, i.e. bits per second；Determine that channel speed includes according to csi:
The csi according to csi and pre-setting and modulation system and the corresponding relation of channel speed, determine channel
Speed；Transfer rate is the ratio with transmission time for the data volume of request content.
It should be noted that 3gpp agreement support, distribute the communication resource in acquisition csi while,
Request equipment passes through prose server and obtains the other information sharing equipment, such as shares the mobile speed of equipment
Degree, moving direction and positional information etc..After the prose server-assignment communication resource, entering above-mentioned transmission please
Seek the flow process of content.
In existing point-to-point d2d communicates, need to transmit complete request content to please due to sharing equipment
Seek equipment, therefore accordingly increased the load sharing equipment, especially when the data volume of request content is larger,
And the transmission time that pre-sets less when, the load sharing equipment increases larger, therefore significantly reduces
Share the process performance of equipment, thus correspondingly reduce the Consumer's Experience sharing equipment.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of realize the method for content distribution and set
Standby, the load sharing equipment can be reduced, preferably ensure to share the process performance of equipment.
In order to reach the object of the invention, the invention discloses a kind of method realizing content distribution, comprising:
Request equipment is shared equipment and is set up point-to-point equipment room direction communication respectively with two or more
D2d connects；
Request content is divided into according to the partition strategy pre-setting and respectively shares a pair of equipment 1 by request equipment
The piecemeal answered, and notify respectively described respectively to share equipment；
The described piecemeal respectively sharing equipment difference transmission notice is to request equipment.
Described set up after point-to-point d2d connects respectively, described request content is divided into piecemeal before, institute
Method of stating also includes:
Described request equipment passes through to obtain the letter of each built connection respectively based on closing on service prose server
Channel state information csi；
After described notice respectively, before described transmission respectively, methods described also includes:
Described request equipment calculates the transfer rate of described each built connection, according to described each built connection
Corresponding transfer rate and csi are respectively described each built connection and determine the communication resource, and ask prose
Server is respectively described each built connection and distributes the corresponding communication resource determined.
In the first embodiment of the invention, the described quantity respectively sharing equipment is n；Described partition strategy is:
Described request content is uniformly divided into n piecemeal, set up at random each piecemeal being divided into described respectively share set
Standby corresponding relation；
The transfer rate of described each built connection be corresponding piecemeal data volume with during the transmission pre-setting
Between ratio.
In second embodiment of the invention, in the described equipment set up during point-to-point d2d connects finds,
Methods described also includes: while asking discovery to share equipment, equipment is shared in request to described request equipment
Stand-by time corresponding with its dump energy；
Described partition strategy is: shares equipment for each, will share the stand-by time of equipment and set in advance
In the transmission time put, the less set of time of numerical value is the first transmission time sharing equipment, obtains described
Respectively share the first transmission time of equipment, the ratio according to the described each first transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with corresponding first send when
Between ratio.
In third embodiment of the invention, described request equipment is obtained described each respectively by prose server
During the csi of built connection, methods described also includes: described request equipment passes through prose server respectively
Obtain the described direction of motion respectively sharing equipment, movement velocity and positional information；
Described partition strategy is: share equipment for each, according to the direction of motion corresponding with sharing equipment,
Movement velocity and positional information, calculated for the second transmission time, will share the second transmission time of equipment and pre-
In the transmission time first arranging, the less set of time of numerical value is the 3rd transmission time sharing equipment, obtains
Described the 3rd transmission time respectively sharing equipment, the ratio according to each 3rd transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with the corresponding 3rd send when
Between ratio.
Described calculating the second transmission time include: share equipment for each, according to request equipment with share
The direction of motion of equipment, movement velocity and positional information, calculate through how long asking equipment and sharing
The distance between equipment is equal to the maximum communication distance pre-setting, and the time calculating is and sets with sharing
The standby corresponding second transmission time.
Described notice is respectively shared equipment and is included: by the start-stop station location marker of each piecemeal being divided into, by prose
Server is sent respectively to corresponding with described each piecemeal respectively share equipment.
The invention also discloses a kind of equipment realizing content distribution, at least include connection establishment unit, divide
Module unit and receiving unit, wherein,
Connection establishment unit, sets up point-to-point d2d even respectively for sharing equipment with two or more
Connect；
Blocking unit, for being divided into request content according to the partition strategy pre-setting and respectively sharing equipment
One-to-one piecemeal, and notify respectively described respectively to share equipment；
Receiving unit, respectively shares, for receiving respectively, the piecemeal that equipment distribution is sent.
Described blocking unit is additionally operable to:
Obtain the csi of described each built connection by prose server respectively；
Calculate the transfer rate of described each built connection, transmit speed according to corresponding with described each built connection
Rate and csi are respectively described each built connection and determine the communication resource, and ask prose server to be respectively
Described each built connection distributes the corresponding communication resource determined.
In the first embodiment of the invention, the described quantity respectively sharing equipment is n；Described partition strategy is:
Described request content is uniformly divided into n piecemeal, set up at random each piecemeal being divided into described respectively share set
Standby corresponding relation；
The transfer rate of described each built connection be corresponding piecemeal data volume with during the transmission pre-setting
Between ratio.
In second embodiment of the invention, described connection establishment unit is additionally operable to: equipment is shared in request discovery
When, the stand-by time corresponding with its dump energy of equipment is shared in request；
Described partition strategy is: shares equipment for each, will share the stand-by time of equipment and set in advance
In the transmission time put, the less set of time of numerical value is the first transmission time sharing equipment, obtains described
Respectively share the first transmission time of equipment, the ratio according to the described each first transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with corresponding first send when
Between ratio.
In second embodiment of the invention, described described each built connection is obtained respectively by prose server
Csi when, described blocking unit is additionally operable to: by prose server obtain respectively described respectively share set
The standby direction of motion, movement velocity and positional information；
Described partition strategy is: share equipment for each, according to the direction of motion corresponding with sharing equipment,
Movement velocity and positional information, calculated for the second transmission time, will share the second transmission time of equipment and pre-
In the transmission time first arranging, the less set of time of numerical value is the 3rd transmission time sharing equipment, obtains
Described the 3rd transmission time respectively sharing equipment, the ratio according to each 3rd transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with the corresponding 3rd send when
Between ratio.
Described calculate second send the time when, described blocking unit specifically for: share equipment for each,
According to described equipment and the direction of motion sharing equipment, movement velocity and positional information, calculate through how long
Equipment described in time is equal to, with sharing the distance between equipment, the maximum communication distance pre-setting, and calculates
Time be the second transmission time corresponding with sharing equipment.
When described notice respectively shares equipment, described blocking unit specifically for: by each piecemeal being divided into rise
Only station location marker, is sent respectively to corresponding with described each piecemeal respectively share equipment by prose server.
Compared with prior art, technical solution of the present invention includes: request equipment respectively with two or two with
On share equipment and set up point-to-point d2d and connect；Request equipment will be asked according to the partition strategy pre-setting
Content is divided into and respectively shares the one-to-one piecemeal of equipment, and notifies respectively respectively to share equipment；Respectively share and set
The piecemeal of the other transmission notice of back-up is to request equipment.By technical solution of the present invention it is achieved that multiple share
Equipment sends the piecemeal that a part for request content notifies, compared to existing to respectively same request equipment
There is point-to-point d2d communication, reduce the load sharing equipment, preferably ensure that the process sharing equipment
Performance, shares, thus preferably ensure that, the Consumer's Experience setting.
Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of
Become apparent in bright book, or understood by implementing the present invention.The purpose of the present invention is excellent with other
Point can be realized by specifically noted structure in description, claims and accompanying drawing and obtain
?.
Brief description
Accompanying drawing is used for providing technical solution of the present invention is further understood, and constitutes one of description
Point, it is used for explaining technical scheme together with embodiments herein, do not constitute to the present invention
The restriction of technical scheme.
The flow chart that Fig. 1 realizes the method for content distribution for the present invention；
Fig. 2 is to ask equipment in third embodiment of the invention and share position relationship schematic diagram between equipment；
Fig. 3 is the flow chart of the inventive method first embodiment；
Fig. 4 is the flow chart of the inventive method second embodiment；
Fig. 5 is the flow chart of the inventive method 3rd embodiment；
Fig. 6 is the flow chart of the inventive method fourth embodiment；
Fig. 7 realizes the composition structural representation of the equipment of content distribution for the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing
Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen
Please in embodiment and the feature in embodiment can mutual combination in any.
The step illustrating in the flow process of accompanying drawing can be in the computer of such as one group of computer executable instructions
Execute in system.And although showing logical order in flow charts, but in some cases,
Can be with the step shown or described different from order execution herein.
The flow chart that Fig. 1 realizes the method for content distribution for the present invention, as shown in Figure 1, comprising:
Step 101: request equipment is shared equipment and set up point-to-point d2d respectively even with two or more
Connect.It implements, similar with implementing of setting up in point-to-point d2d communication that point-to-point d2d connects,
Difference is that setting up two or more point-to-point d2d by this step connects, and existing point-to-point
Set up a point-to-point d2d in d2d communication to connect.
Step 102: request content is divided into according to the partition strategy pre-setting and setting with respectively sharing by request equipment
Standby one-to-one piecemeal, and notify respectively respectively to share equipment.
For making technical solution of the present invention more complete, after step 101, before step 102, also include:
Request equipment obtains the csi of each built connection respectively by prose server.It implements, and belongs to this
The conventional techniques of skilled person, the protection domain being not intended to limit the present invention, herein no longer
Repeat.
In the first embodiment of the invention it is assumed that the quantity respectively sharing equipment is n that is to say, that built
The quantity connecting is n, and partition strategy is: request content is uniformly divided into n piecemeal, random foundation is divided
The each piecemeal becoming and the corresponding relation respectively sharing equipment.
Communicated according to existing point-to-point d2d and understand, the point-to-point d2d that sets up in step 101 connects inclusion
Equipment finds and connection establishment.
In second embodiment of the invention, in equipment discovery in a step 101, the inventive method is also wrapped
Include: request equipment while asking discovery to share equipment, request share equipment with its dump energy pair
The stand-by time answered.Wherein, stand-by time is used for showing to share the power-on time of equipment dump energy.
Can by 3gpp agreement support " request equipment ask discovery share equipment while, request
Additional information " function, to obtain the stand-by time sharing equipment.
In a second embodiment, partition strategy is: shares equipment for each, will share the standby of equipment
When time is the first transmission sharing equipment with the less set of time of numerical value in the transmission time pre-setting
Between, respectively shared the first transmission time of equipment, the ratio according to each first transmission time obtaining will
Request content is divided into piecemeal corresponding with respectively sharing equipment.Here for example,
Assume that the transmission time pre-setting is 10 seconds, the data volume of request content is adata, by step
Rapid 101 share equipment and second respectively with first shares equipment and sets up point-to-point d2d and be connected, and the of acquisition
One share equipment and second share equipment stand-by time be respectively 5 seconds and 20 seconds, by step 102 must
To: first shares respectively 5 seconds and 10 seconds the first transmission time that equipment and second shares equipment, and first
Share equipment and second and share the corresponding piecemeal of equipment respectively adata/3 and 2adata/3.
In third embodiment of the invention, above-mentioned request equipment is obtained each built respectively by prose server
During the csi connecting, the inventive method also includes: request equipment is obtained respectively respectively by prose server
Share the direction of motion, movement velocity and the positional information of equipment.
In the third embodiment, partition strategy is: share equipment for each, according to share equipment pair
The direction of motion, movement velocity and the positional information answered, calculated for the second transmission time, will share the of equipment
Two transmission times were share equipment the 3rd with the less set of time of numerical value in the transmission time pre-setting
The transmission time, respectively shared the 3rd transmission time of equipment, according to each 3rd transmission time obtaining
Request content is divided into piecemeal corresponding with respectively sharing equipment by ratio.Wherein,
The second transmission time that calculated includes: share equipment for each, according to request equipment with share equipment
The direction of motion, movement velocity and positional information, calculate through how long asking equipment and sharing equipment
The distance between be equal to the maximum communication distance that pre-sets, the time calculating is and shares equipment pair
The the second transmission time answered.Here, maximum communication distance is request equipment and share that to carry out equipment room direct
The ultimate range of communication.
Below by illustrate how to calculate through how long ask equipment and share between equipment away from
From equal to maximum communication distance:
As shown in Fig. 2 when initial, request equipment is located at a1 point and b1 point respectively with sharing equipment, please
Seek equipment and be respectively v1 and v2 with the translational speed sharing equipment, the direction of arrow at v1 and at v2 is respectively
The moving direction representing request equipment and sharing equipment, the angle between both moving directions is θ, a1
Point coordinates be (a, 0), b1 point coordinates be (b1, b2), after the t1 time, request equipment with share equipment
It is located at a2 point and b2 point respectively, the distance between a2 point and b2 point are d2, maximum communication distance is d.
In fig. 2, establish with o point as the center of circle, with the pros as x-axis for the direction of motion asking equipment
To coordinate system, can obtain a1 and b1 coordinate be respectively (a+v1t1, 0) and
(b1+v2t1cosθ,b2+v2t1Sin θ), shown in the calculating such as formula (1) of d2,
It can be appreciated that as d2=d, t1 was for the second transmission time, understood in conjunction with formula (1), t1's
Calculate as shown in formula (2),
Wherein, c=v1 2+v2 2-2v1v2Cos θ, e=2 (b1-a)(v2cosθ-v1)+2b2v2Sin θ,
F=(b1-a)2+b2 2-d2.
In conjunction with the example above, those skilled in the art can by mathematical modeling derive various in the case of such as
What calculated for the second transmission time, and here is omitted.
Notifying respectively in step 102 respectively share equipment implement including: by each piecemeal being divided into
Start-stop station location marker, is sent respectively to corresponding with each piecemeal respectively share equipment by prose server.
Step 103: the piecemeal respectively sharing equipment difference transmission notice is to request equipment.It should be noted that
Respectively share equipment and directly the piecemeal of notice is not sent to by request equipment by prose server respectively, tool
Body is realized, and belongs to the conventional techniques of those skilled in the art, the protection being not intended to limit the present invention
Scope, here is omitted.
After step 102, before step 103, the inventive method also includes: request equipment calculates respectively
Build the transfer rate of connection, according to respectively each built with the corresponding transfer rate of each built connection and csi
Connect and determine the communication resource, and ask prose server to be respectively each built connection and distribute corresponding determining
The communication resource.
Wherein, for each built connection, how according to this corresponding transfer rate of built connection and csi
Determine implementing of the communication resource, in communicating similar to existing point-to-point d2d, determine the tool of the communication resource
Body is realized, and is not intended to limit the scope of the invention, here is omitted.
It should be noted that in the first embodiment, the transfer rate of each built connection is corresponding piecemeal
Data volume and the transmission time pre-setting ratio.In a second embodiment, the biography of each built connection
Defeated speed is the ratio with the corresponding first transmission time for the data volume of corresponding piecemeal.In 3rd embodiment
In, the transfer rate of each built connection is data volume and the corresponding 3rd transmission time of corresponding piecemeal
Ratio.
By technical solution of the present invention it is achieved that multiple equipment of sharing sends to same request equipment respectively
The piecemeal that a part for request content notifies, communicates compared to existing point-to-point d2d, reduces and share
The load of equipment, preferably ensure that the process performance sharing equipment.Here it is assumed that in advance from the point of view of illustrating
The transmission time of setting is 10 seconds, and the data volume of request content is 1000 bits, in existing point-to-point d2d
In communication, the transfer rate for request content sharing equipment is 100bit/s, by the technology of the present invention side
Case, if two are shared equipment and send request content to request equipment, each shares the transmission of equipment needs
Data volume is 500 bits, and therefore, the transfer rate that each shares equipment is 50bit/s it is clear that passing through
Technical solution of the present invention, significantly reduces the load sharing equipment.
The technical scheme adopting in second embodiment, compared to the technical scheme adopting in first embodiment,
During due to being that stand-by time determines, with transmission time, the first transmission respectively sharing equipment with reference to dump energy information
Between so that the first transmission time of calculating share time from equipment to request device transmission piecemeal more
Accurately, preferably avoid and in transmitting procedure, share the communication disruption that device power supply (DPS) such as running down of battery causes
Problem, improves the stability of technical solution of the present invention.
Similarly, the technical scheme adopting in second embodiment, compared to the skill adopting in first embodiment
Art scheme, asks equipment from another angle and shares the distance between equipment needs less than or equal to
The angle of big communication distance, the 3rd transmission time that accurately calculated shares equipment to request device transmission piecemeal
Time, preferably avoid in transmitting procedure and share equipment and request communication between devices distance beyond
Big communication distance and the problem of communication disruption that causes, improve the stability of technical solution of the present invention.
Embodiment with reference to the inventive method is discussed in detail technical solution of the present invention.
In the first embodiment, as shown in figure 3, the inventive method includes:
Step 301: request equipment is shared equipment with two or more and set up point-to-point d2d and is connected.
Step 302: request equipment sends asking of the status information obtaining each built connection to prose server
Ask, wherein, status information includes the csi of built connection.
Step 303:prose server obtains the status information of request device request and feeds back to request equipment.
Step 304: request content is divided into according to partition strategy and respectively shares equipment one-to-one corresponding by request equipment
Piecemeal.
Wherein, partition strategy is: request content is uniformly divided into n piecemeal, it is each that random foundation is divided into
Piecemeal and the corresponding relation respectively sharing equipment.
Step 305: request equipment by the start-stop station location marker of each piecemeal being divided into, by prose server
It is sent respectively to corresponding with each piecemeal respectively share equipment.
Step 306: request equipment calculates the transfer rate of each built connection, according to corresponding with each built connection
Transfer rate and csi be respectively each built connect determine the communication resource, and ask prose server to divide
Each built connection Wei not distribute the corresponding communication resource determined.
Wherein, the transfer rate of each built connection is the data volume of corresponding piecemeal and the transmission pre-setting
The ratio of time.
Step 307: the piecemeal respectively sharing equipment difference transmission notice is to request equipment.
Step 308: after request equipment receives the piecemeal respectively sharing equipment transmission, notify prose server
The communication resource of release distribution.
In a second embodiment, as shown in figure 4, the inventive method includes:
Step 401: request equipment is shared equipment with two or more and set up point-to-point d2d and is connected.
Wherein, in the equipment during point-to-point d2d connects of setting up finds, request equipment is shared in request discovery and is set
While standby, the stand-by time corresponding with its dump energy of equipment is shared in request.
Step 402: request equipment sends asking of the status information obtaining each built connection to prose server
Ask, wherein, status information includes the csi of built connection.
Step 403:prose server obtains the status information of request device request and feeds back to request equipment.
Step 404: request content is divided into according to partition strategy and respectively shares equipment one-to-one corresponding by request equipment
Piecemeal.
Wherein, partition strategy is: shares equipment for each, will share the stand-by time and in advance of equipment
In the transmission time of setting, the less set of time of numerical value is the first transmission time sharing equipment, obtains each
Share the first transmission time of equipment, request content is divided by the ratio according to each first transmission time obtaining
Become piecemeal corresponding with respectively sharing equipment.
Step 405: request equipment by the start-stop station location marker of each piecemeal being divided into, by prose server
It is sent respectively to corresponding with each piecemeal respectively share equipment.
Step 406: request equipment calculates the transfer rate of each built connection, according to corresponding with each built connection
Transfer rate and csi be respectively each built connect determine the communication resource, and ask prose server to divide
Each built connection Wei not distribute the corresponding communication resource determined.
Wherein, the transfer rate of each built connection is data volume and corresponding first transmission of corresponding piecemeal
The ratio of time.
Step 407: the piecemeal respectively sharing equipment difference transmission notice is to request equipment.
Step 408: after request equipment receives the piecemeal respectively sharing equipment transmission, notify prose server
The communication resource of release distribution.
In the third embodiment, as shown in figure 5, the inventive method includes:
Step 501: request equipment is shared equipment with two or more and set up point-to-point d2d and is connected.
Step 502: request equipment sends asking of the status information obtaining each built connection to prose server
Ask, wherein, status information includes the csi of built connection and shares the translational speed of equipment, movement side
To and positional information.
Step 503:prose server obtains the status information of request device request and feeds back to request equipment.
Step 504: request content is divided into according to partition strategy and respectively shares equipment one-to-one corresponding by request equipment
Piecemeal.
Wherein, partition strategy is: shares equipment for each, according to motion side corresponding with sharing equipment
To, movement velocity and positional information, calculated for the second transmission time, will share the second transmission time of equipment
It is the 3rd transmission time sharing equipment with the less set of time of numerical value in the transmission time pre-setting,
Respectively shared the 3rd transmission time of equipment, the ratio according to each 3rd transmission time obtaining will be asked
Content is divided into piecemeal corresponding with respectively sharing equipment.
Step 505: request equipment by the start-stop station location marker of each piecemeal being divided into, by prose server
It is sent respectively to corresponding with each piecemeal respectively share equipment.
Step 506: request equipment calculates the transfer rate of each built connection, according to corresponding with each built connection
Transfer rate and csi be respectively each built connect determine the communication resource, and ask prose server to divide
Each built connection Wei not distribute the corresponding communication resource determined.
Wherein, the transfer rate of each built connection is the data volume of corresponding piecemeal and corresponding 3rd transmission
The ratio of time.
Step 507: the piecemeal respectively sharing equipment difference transmission notice is to request equipment.
Step 508: after request equipment receives the piecemeal respectively sharing equipment transmission, notify prose server
The communication resource of release distribution.
In fourth embodiment of the invention, as shown in fig. 6, the inventive method includes:
Step 601: request equipment is shared equipment with two or more and set up point-to-point d2d and is connected.
Wherein, in the equipment during point-to-point d2d connects of setting up finds, request equipment is shared in request discovery and is set
While standby, the stand-by time corresponding with its dump energy of equipment is shared in request.
Specifically, in setting up point-to-point d2d connection, request equipment passes through the broadcast of pc5 interface and finds
Request message, wherein carries the information of request stand-by time.The discovery of broadcast on pc5 interface and pc5
Request message be specifically defined with reference to 3gpp agreement, it should be noted that finding that request message includes prose
Functional code, requested model and tri- fields of meta data, the present invention uses meta data
Field carries the information of request stand-by time.The definition of above three field, reference 3gpp agreement, herein
Repeat no more.
Step 602: request equipment sends asking of the status information obtaining each built connection to prose server
Ask, wherein, status information includes the csi of built connection and shares the translational speed of equipment, movement side
To and positional information.
Step 603:prose server obtains the status information of request device request and feeds back to request equipment.
Step 604: request content is divided into according to partition strategy and respectively shares equipment one-to-one corresponding by request equipment
Piecemeal.
Wherein, partition strategy is: shares equipment for each, will share the stand-by time and in advance of equipment
In the transmission time of setting, the less set of time of numerical value is the first transmission time sharing equipment, obtains each
Share the first transmission time of equipment；Share equipment for each, according to motion corresponding with sharing equipment
Direction, movement velocity and positional information, calculated for the second transmission time, when share equipment first is sent
Between be the 4th transmission time sharing equipment with the less set of time of numerical value in the second transmission time, obtain
Respectively share the 4th transmission time of equipment；According to each 4th transmission time obtaining ratio by request content
It is divided into piecemeal corresponding with respectively sharing equipment.
Step 605: request equipment by the start-stop station location marker of each piecemeal being divided into, by prose server
It is sent respectively to corresponding with each piecemeal respectively share equipment.
In this step, the dl information transfer message that request equipment is specified by 3gpp agreement
Spare field in (dlinformationtransfer message) such as spare null field carries start-stop
Station location marker.
Step 606: request equipment calculates the transfer rate of each built connection, according to corresponding with each built connection
Transfer rate and csi be respectively each built connect determine the communication resource, and ask prose server to divide
Each built connection Wei not distribute the corresponding communication resource determined.
Wherein, the transfer rate of each built connection is the data volume of corresponding piecemeal and corresponding 4th transmission
The ratio of time.
Below taking a built connection as a example, to illustrate how to determine its communication resource,
Assume that this built connection corresponding 4th transmission time is 10 seconds, piecemeal is 100 bits, then understand
Transfer rate is 10bit/s, determines channel speed, transfer rate according to the corresponding csi of this built connection
It is the communication resource with the ratio of channel speed.Wherein, how channel speed, reference are determined by csi
Background technology is introduced, and here is omitted.
Step 607: the piecemeal respectively sharing equipment difference transmission notice is to request equipment.
Step 608: after request equipment receives the piecemeal respectively sharing equipment transmission, notify prose server
The communication resource of release distribution.It implements, and belongs to the conventional techniques of those skilled in the art,
The protection domain being not intended to limit the present invention, here is omitted.
If it should be noted that at least one piecemeal sharing the unsuccessful transmission notice of equipment sets to request
Standby, technical solution of the present invention can be executed again, realize the part being not successfully received in distribution request content,
So iteration, till completing the transmission of whole request content.
Further,
After getting the csi of each built connection, before step 102, the inventive method can also include:
Respectively shared renewal of the equipment for csi be more than pre-set csi threshold value respectively share equipment.So
Avoid request equipment i.e. csi poor with communication capacity to carry out less than or equal to the equipment of sharing of csi threshold value
Communication is it is achieved that more efficiently utilize the communication resource.
Fig. 7 realizes the composition structural representation of the equipment of content distribution for the present invention.As shown in fig. 7, should
Equipment both can serve as request equipment and has been also used as sharing equipment, when it is used as request equipment, at least wraps
Include connection establishment unit, blocking unit and receiving unit, wherein,
Connection establishment unit, sets up point-to-point d2d even respectively for sharing equipment with two or more
Connect；
Blocking unit, for being divided into request content according to the partition strategy pre-setting and respectively sharing equipment
One-to-one piecemeal, and notify respectively respectively to share equipment；
Receiving unit, respectively shares, for receiving respectively, the piecemeal that equipment distribution is sent.
Blocking unit is additionally operable to:
Obtain the csi of each built connection by prose server respectively；
Calculate the transfer rate of each built connection, according to each built connection corresponding transfer rate and csi
It is respectively each built connection and determines the communication resource, and ask prose server to be respectively each built connection distribution
The corresponding communication resource determined.
In the first embodiment of the invention, the quantity respectively sharing equipment is n；Partition strategy is: will ask
Content is uniformly divided into n piecemeal, sets up each piecemeal being divided into and the corresponding relation respectively sharing equipment at random；
The transfer rate of each built connection is the data volume of corresponding piecemeal and the transmission time pre-setting
Ratio.
In second embodiment of the invention, connection establishment unit is additionally operable to: when equipment is shared in request discovery,
The stand-by time corresponding with its dump energy of equipment is shared in request；
Partition strategy is: shares equipment for each, will share the stand-by time of equipment and pre-set
In transmission time, the less set of time of numerical value is the first transmission time sharing equipment, is respectively shared and sets
The standby first transmission time, according to each first transmission time obtaining ratio by request content be divided into respectively
Share the corresponding piecemeal of equipment；
The transfer rate of each built connection is data volume and the corresponding first transmission time of corresponding piecemeal
Ratio.
The csi of each built connection in third embodiment of the invention, is obtained respectively by prose server
When, blocking unit is additionally operable to: obtains the direction of motion, the fortune respectively sharing equipment respectively by prose server
Dynamic speed and positional information；
Partition strategy is: shares equipment for each, according to the direction of motion corresponding with sharing equipment, fortune
Dynamic speed and positional information, calculated for the second transmission time, will share second transmission time and in advance of equipment
In the transmission time of setting, the less set of time of numerical value is the 3rd transmission time sharing equipment, obtains each
Share the 3rd transmission time of equipment, request content is divided by the ratio according to each 3rd transmission time obtaining
Become piecemeal corresponding with respectively sharing equipment；
The transfer rate of each built connection is data volume and the corresponding 3rd transmission time of corresponding piecemeal
Ratio.
In third embodiment of the invention, when calculating second and sending the time, blocking unit is specifically for pin
Equipment is shared to each, according to this equipment and the direction of motion sharing equipment, movement velocity and positional information,
Calculate through how long this equipment and share the distance between equipment equal to the maximum communication pre-setting away from
From the time calculating is the second transmission time corresponding with sharing equipment.
Notify when respectively sharing equipment, blocking unit specifically for: by the start-stop position mark of each piecemeal being divided into
Know, be sent respectively to corresponding with each piecemeal respectively share equipment by prose server.
Although disclosed herein embodiment as described above, but described content only readily appreciates this
The embodiment invented and adopt, is not limited to the present invention.Skill in any art of the present invention
Art personnel, without departing from disclosed herein spirit and scope on the premise of, can implement form
And any modification and change are carried out on details, but the scope of patent protection of the present invention, still must be with appended
The scope that claims are defined is defined.
Claims (14)
1. a kind of method realizing content distribution is it is characterised in that include:
Request equipment is shared equipment and is set up point-to-point equipment room direction communication respectively with two or more
D2d connects；
Request content is divided into according to the partition strategy pre-setting and respectively shares a pair of equipment 1 by request equipment
The piecemeal answered, and notify respectively described respectively to share equipment；
The described piecemeal respectively sharing equipment difference transmission notice is to request equipment.
2. method according to claim 1 is it is characterised in that described set up point-to-point d2d respectively
After connection, described request content is divided into piecemeal before, methods described also includes:
Described request equipment passes through to obtain the letter of each built connection respectively based on closing on service prose server
Channel state information csi；
After described notice respectively, before described transmission respectively, methods described also includes:
Described request equipment calculates the transfer rate of described each built connection, according to described each built connection
Corresponding transfer rate and csi are respectively described each built connection and determine the communication resource, and ask prose
Server is respectively described each built connection and distributes the corresponding communication resource determined.
3. method according to claim 1 and 2 is it is characterised in that the described number respectively sharing equipment
Measure as n；Described partition strategy is: described request content is uniformly divided into n piecemeal, random foundation is divided
The each piecemeal becoming and the described corresponding relation respectively sharing equipment；
The transfer rate of described each built connection be corresponding piecemeal data volume with during the transmission pre-setting
Between ratio.
4. method according to claim 1 and 2 it is characterised in that described set up point-to-point
During equipment in d2d connection finds, methods described also includes: described request equipment is shared in request discovery
While equipment, the stand-by time corresponding with its dump energy of equipment is shared in request；
Described partition strategy is: shares equipment for each, will share the stand-by time of equipment and set in advance
In the transmission time put, the less set of time of numerical value is the first transmission time sharing equipment, obtains described
Respectively share the first transmission time of equipment, the ratio according to the described each first transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with corresponding first send when
Between ratio.
5. method according to claim 1 and 2 is it is characterised in that described request equipment passes through prose
When server obtains the csi of described each built connection respectively, methods described also includes: described request equipment
The described direction of motion respectively sharing equipment, movement velocity and position letter are obtained respectively by prose server
Breath；
Described partition strategy is: share equipment for each, according to the direction of motion corresponding with sharing equipment,
Movement velocity and positional information, calculated for the second transmission time, will share the second transmission time of equipment and pre-
In the transmission time first arranging, the less set of time of numerical value is the 3rd transmission time sharing equipment, obtains
Described the 3rd transmission time respectively sharing equipment, the ratio according to each 3rd transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with the corresponding 3rd send when
Between ratio.
6. method according to claim 5 is it is characterised in that described calculating second sends time bag
Include: share equipment for each, according to request equipment and the direction of motion sharing equipment, movement velocity and
Positional information, calculates through how long asking equipment and sharing the distance between equipment equal to pre-setting
Maximum communication distance, the time calculating be the second transmission time corresponding with sharing equipment.
7. method according to claim 1 and 2 is it is characterised in that described notice respectively shares equipment
Including: by the start-stop station location marker of each piecemeal being divided into, by prose server be sent respectively to described
Each piecemeal is corresponding respectively to share equipment.
8. a kind of equipment realizing content distribution is it is characterised in that at least including connection establishment unit, dividing
Module unit and receiving unit, wherein,
Connection establishment unit, sets up point-to-point d2d even respectively for sharing equipment with two or more
Connect；
Blocking unit, for being divided into request content according to the partition strategy pre-setting and respectively sharing equipment
One-to-one piecemeal, and notify respectively described respectively to share equipment；
Receiving unit, respectively shares, for receiving respectively, the piecemeal that equipment distribution is sent.
9. equipment according to claim 8 is it is characterised in that described blocking unit is additionally operable to:
Obtain the csi of each built connection by prose server respectively；
Calculate the transfer rate of described each built connection, transmit speed according to corresponding with described each built connection
Rate and csi are respectively described each built connection and determine the communication resource, and ask prose server to be respectively
Described each built connection distributes the corresponding communication resource determined.
10. equipment according to claim 8 or claim 9 is it is characterised in that described respectively share equipment
Quantity is n；Described partition strategy is: described request content is uniformly divided into n piecemeal, random foundation
The each piecemeal being divided into and the described corresponding relation respectively sharing equipment；
The transfer rate of described each built connection be corresponding piecemeal data volume with during the transmission pre-setting
Between ratio.
11. equipment according to claim 8 or claim 9 are it is characterised in that described connection establishment unit
Be additionally operable to: request discovery is when sharing equipment, request share equipment corresponding with its dump energy standby when
Between；
Described partition strategy is: shares equipment for each, will share the stand-by time of equipment and set in advance
In the transmission time put, the less set of time of numerical value is the first transmission time sharing equipment, obtains described
Respectively share the first transmission time of equipment, the ratio according to the described each first transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with corresponding first send when
Between ratio.
12. equipment according to claim 8 or claim 9 are it is characterised in that described serviced by prose
When device obtains the csi of described each built connection respectively, described blocking unit is additionally operable to: is taken by prose
Business device obtains the described direction of motion respectively sharing equipment, movement velocity and positional information respectively；
Described partition strategy is: share equipment for each, according to the direction of motion corresponding with sharing equipment,
Movement velocity and positional information, calculated for the second transmission time, will share the second transmission time of equipment and pre-
In the transmission time first arranging, the less set of time of numerical value is the 3rd transmission time sharing equipment, obtains
Described the 3rd transmission time respectively sharing equipment, the ratio according to each 3rd transmission time obtaining will be asked
Content is divided into respectively shares the corresponding piecemeal of equipment with described；
The transfer rate of described each built connection be corresponding piecemeal data volume with the corresponding 3rd send when
Between ratio.
13. equipment according to claim 12 are it is characterised in that described calculating second sends the time
When, described blocking unit specifically for: share equipment for each, according to described equipment with share equipment
The direction of motion, movement velocity and positional information, calculate through how long described equipment and share equipment
The distance between be equal to the maximum communication distance that pre-sets, the time calculating is and shares equipment pair
The the second transmission time answered.
14. equipment according to claim 8 or claim 9 are it is characterised in that described notice is respectively shared sets
When standby, described blocking unit specifically for: by the start-stop station location marker of each piecemeal being divided into, by prose
Server is sent respectively to corresponding with described each piecemeal respectively share equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408188.8A CN106341892A (en) | 2015-07-10 | 2015-07-10 | Content distribution implementing method and device |
| PCT/CN2015/093804 WO2016131306A1 (en) | 2015-07-10 | 2015-11-04 | Content distribution method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408188.8A CN106341892A (en) | 2015-07-10 | 2015-07-10 | Content distribution implementing method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106341892A true CN106341892A (en) | 2017-01-18 |
Family
ID=56692062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408188.8A Withdrawn CN106341892A (en) | 2015-07-10 | 2015-07-10 | Content distribution implementing method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106341892A (en) |
| WO (1) | WO2016131306A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340829A (en) * | 2010-07-15 | 2012-02-01 | 上海无线通信研究中心 | Device-to-device (D2D) cluster data sharing method under cellular environment |
| CN103428642A (en) * | 2013-07-16 | 2013-12-04 | 北京邮电大学 | Intra-cluster device-to-device (D2D) multicast method based on relay |
| CN103650418A (en) * | 2011-06-09 | 2014-03-19 | 美国博通公司 | Method and apparatus for facilitating multicast service |
| CN103874205A (en) * | 2012-12-12 | 2014-06-18 | 中兴通讯股份有限公司 | Data transmission and receiving method and device thereof |
| CN104581868A (en) * | 2015-01-15 | 2015-04-29 | 浙江工业大学 | Data distribution method with fairness and energy-saving effect by means of D2D cooperative communication at equal data block transmission rate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150410B (en) * | 2006-09-21 | 2011-05-11 | 腾讯科技（深圳）有限公司 | A method and system for sharing resources in network TV live broadcasting room |
-
2015
- 2015-07-10 CN CN201510408188.8A patent/CN106341892A/en not_active Withdrawn
- 2015-11-04 WO PCT/CN2015/093804 patent/WO2016131306A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340829A (en) * | 2010-07-15 | 2012-02-01 | 上海无线通信研究中心 | Device-to-device (D2D) cluster data sharing method under cellular environment |
| CN103650418A (en) * | 2011-06-09 | 2014-03-19 | 美国博通公司 | Method and apparatus for facilitating multicast service |
| CN103874205A (en) * | 2012-12-12 | 2014-06-18 | 中兴通讯股份有限公司 | Data transmission and receiving method and device thereof |
| CN103428642A (en) * | 2013-07-16 | 2013-12-04 | 北京邮电大学 | Intra-cluster device-to-device (D2D) multicast method based on relay |
| CN104581868A (en) * | 2015-01-15 | 2015-04-29 | 浙江工业大学 | Data distribution method with fairness and energy-saving effect by means of D2D cooperative communication at equal data block transmission rate |
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| Publication number | Publication date |
|---|---|
| WO2016131306A1 (en) | 2016-08-25 |
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