CN103260195A - Video service data transmission method and device - Google Patents
Video service data transmission method and device Download PDFInfo
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- CN103260195A CN103260195A CN2012100373313A CN201210037331A CN103260195A CN 103260195 A CN103260195 A CN 103260195A CN 2012100373313 A CN2012100373313 A CN 2012100373313A CN 201210037331 A CN201210037331 A CN 201210037331A CN 103260195 A CN103260195 A CN 103260195A
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Abstract
The invention discloses a video service data transmission method and device, and relates to the communication technical field. The video service data transmission method comprises the following steps that a target base station intercepts a hypertext transfer protocol (HTTP) acquisition request sent by user equipment (UE) to a service provider (SP) server, the HTTP acquisition request comprises an initial position of remaining video data which are not completely downloaded when the UE is in a source base station; the target base station determines whether the remaining video data are cached in a radio access network (RAN) cache of the target base station or not, and if the remaining video data are cached in the RAN cache of the target base station, the target base station sends redirection messages to the UE. The video service data transmission method and device is suitable for video transmission services using the RAN.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of video traffic data transmission method and device.
Background technology
Along with internet development, the user watches video more and more universal by video website, and the video of part website is based on the video of HTTP (HyperText Transfer Protocol, HTML (Hypertext Markup Language)).The user uses HTTP progressive download mode to play when watching these videos, in user's displaying video, can video file be sent to the user by server, and namely the user can download while seeing; Even the user suspends broadcast, server still can send to the user with remaining video file, finishes until transmission.
When the user uses portable terminal to watch video by wireless network, because the movement of terminal can cause terminal to be switched between different base stations.When buffer memory the video data volume in the source base station seldom the time, can guarantee that the user watches the continuity of video, still, when buffer memory the video data volume is very big, if carry out transfer of data by X2 interface, then can cause very big load to X2 interface, cause video time delay or interruption.
Summary of the invention
Embodiments of the invention provide a kind of video traffic transmission method and device, when user terminal switches between the base station, can guarantee the continuity of the video traffic transfer of data of user terminal program request, promote the user and experience.
On the one hand, provide a kind of video traffic data transmission method, having comprised:
Target BS interception user equipment (UE) obtains request to the HTML (Hypertext Markup Language) HTTP that the service provider SP server sends, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station;
Described target BS is determined the remaining video data according to the original position of described remaining video data;
Described target BS determines whether described remaining video data are buffered in the wireless access network RAN buffer memory of described target BS;
If described remaining video data are buffered in the RAN buffer memory of described target BS, described target BS sends redirect message to described UE.
On the one hand, provide another kind of video traffic data transmission method, having comprised:
Source base station determines whether all be sent completely to the nearest video unit that described UE sends after user equipment (UE) switches to target BS;
If described video unit all is not sent completely, then described source base station is transmitted to described target BS with the remainder of described video unit.
On the one hand, provide a kind of base station, having comprised:
Blocking module is used for the interception user equipment (UE) and obtains request to the HTML (Hypertext Markup Language) HTTP that the service provider SP server sends, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station;
First determination module is determined the remaining video data for the original position of the described remaining video data of tackling according to described blocking module;
Second determination module is used for determining whether the definite described remaining video data of described first determination module are buffered in the wireless access network RAN buffer memory of target BS;
Message transmission module when determining that for described second determination module described remaining video data are buffered in the RAN buffer memory of described target BS, sends redirect message to described UE.
On the one hand, provide another kind of base station, comprising:
First determination module is used for after user equipment (UE) switches to target BS, determines whether all be sent completely to the nearest video unit that described UE sends;
Data transmission blocks is used for when described first determination module determines that video unit all is not sent completely, and the remainder of described video unit is transmitted to described target BS.
Compared with prior art, the embodiment of the invention can be when UE switches from source base station to target BS, described source base station determines whether all be sent completely to the nearest video unit that described UE sends, if described video unit all is sent completely, then described UE directly downloads by target BS or SP server and does not download the remaining video data of finishing; If described video unit all is not sent completely, then source base station is transmitted to described target BS with the remainder of described video unit by X2 interface, described video unit can be defined as the capacity smaller units according to capacity or time span, avoid source base station to transmit the continuity that has guaranteed the UE displaying video when larger data impacts to X2 interface, promoted user's experience.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram of an embodiment of video traffic data transmission method of the present invention;
Fig. 2 is the method flow diagram of another embodiment of video traffic data transmission method of the present invention;
Fig. 3 is the method flow diagram of another embodiment of video traffic data transmission method of the present invention;
Fig. 4 is the structural representation of a kind of base station of the present invention;
Fig. 5 is the structural representation of the another kind of base station of the present invention;
Fig. 6 is the structural representation for the another kind of base station of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
For the advantage that makes technical solution of the present invention is clearer, below in conjunction with drawings and Examples the present invention is elaborated.
Fig. 1 is the method flow diagram of an embodiment of video traffic data transmission method of the present invention, and as shown in Figure 1, described method comprises:
101, target BS interception UE (User Equipment, subscriber equipment) to SP (Sever Provider, the service provider) the HTML (Hypertext Markup Language) HTTP of server transmission obtains request, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station.
102, described target BS is determined the remaining video data according to the original position of described remaining video data.
103, described target BS determines whether described remaining video data are buffered in the RAN of described target BS (Radio Access Network, the wireless access network) buffer memory.
104, if described remaining video data are buffered in the RAN buffer memory of described target BS, described target BS sends redirect message to described UE.
Further, if described remaining video data are not buffered in the RAN buffer memory of described target BS, send described HTTP to described SP server and obtain request.
Further,, after sending redirect message, described UE also comprises described:
Receive the video download request that described UE sends, set up TCP (Transmission Control Protocol, transmission control protocol) with described UE and connect;
Send described remaining video data to described UE.
Optionally, described target BS receives the video data that described source base station sends, and described video data is sent to described UE, wherein, described video data is described UE when being in source base station, the part that is not sent completely of last video unit that described source base station sends to described UE.
Wherein, URL (Uniform Resource Locator, the URL(uniform resource locator)) address that comprises described remaining video data buffer memory in the described redirect message.
Compared with prior art, the embodiment of the invention can be after UE switches to target BS, described target BS determines whether the video data of described UE request is present in the RAN buffer memory of self, if be present in the RAN buffer memory of self, then UE is directly postponed to leave and carried uncompleted video; If be not present in the RAN buffer memory of self, then the video request with UE sends to the SP server, directly download uncompleted video from the SP server, the impact that when having avoided source base station that the video data in self buffer memory is transmitted to target BS X2 interface has been caused, guarantee the continuity of UE displaying video, promote the user and experience.
Fig. 2 is the method flow diagram of another embodiment of video traffic data transmission method of the present invention, and as shown in Figure 2, described method comprises:
201, source base station determines whether all be sent completely to the nearest video unit that described UE sends after user equipment (UE) switches to target BS.
202, if described video unit all is not sent completely, then described source base station is transmitted to described target BS with the remainder of described video unit.
Wherein, described video unit comprises:
The size of a frame of video and described frame of video; Perhaps,
Video data in the setting-up time; Perhaps,
Set the video data of amount of capacity.
Compared with prior art, the embodiment of the invention can be when UE switches from source base station to target BS, described source base station determines whether all be sent completely to the nearest video unit that described UE sends, if described video unit all is not sent completely, then source base station is transmitted to described target BS with the remainder of described video unit by X2 interface, described video unit can be defined as the capacity smaller units according to capacity or time span, the impact that when having avoided source base station that the video data in self buffer memory is transmitted to target BS X2 interface has been caused, guarantee the continuity of UE displaying video, promote the user and experience.
Fig. 3 is the method flow diagram of another embodiment of video traffic data transmission method of the present invention, and as shown in Figure 3, described method comprises:
301, source base station sends the switching command that switches to target BS to user equipment (UE).
302, described source base station determines whether all be sent completely to the nearest video unit that described UE sends after user equipment (UE) switches to target BS.If described video unit all is sent completely execution in step 304,306-308; If video unit all is not sent completely execution in step 303-308.
When UE obtained video data by source base station to the SP server, described video data can be defined as different video units according to capacity, makes can not impact to X2 when video unit sends to target BS by X2 interface.Concrete, the define method of a video unit can for:
The size of a frame of video and described frame of video; Perhaps,
Video data in the setting-up time, for example, the video data of 5s time span; Perhaps,
Set the video data of amount of capacity, for example, the video data of 100kb (Kilobyte, kilobytes).
When UE switches from source base station to target BS, may exist source base station that a video unit has only been sent the situation of a part to UE, in such cases, in order to guarantee the continuity of video playback, source base station need send to target BS with the remainder of described video unit, sends to UE by target BS then.
303, described source base station is transmitted to described target BS with the remainder of described video unit.
304, described UE switches to described target BS.
305, described target BS is transmitted to UE with the remainder of described video unit.
306, described UE sends HTTP to the SP server and obtains request.
Wherein, according to the video of buffer memory among the UE, described HTTP obtains among the URL of request and comprises the original position that needs foradownloaded video.For example, described UE has downloaded to the 10th second of video, need continue to download from the 11st second, and then the described HTTP request of obtaining is as follows:
GET?http://sever1.example.com/media.flv？start＝11HTTP/1.1
Accept：*/*
Proxy-Connection：Keep-Alive
User-Agent：Mozilla/4.0(compatible；MSIE?6.0；Windows?NT?5.1；SV1)
Host：sever.example.com
Cookie：
307, described target BS is tackled the HTTP that described UE sends and is obtained request.
308, described target BS determines whether described remaining video data are buffered in the wireless access network RAN buffer memory of described target BS.If described remaining video data are buffered in the RAN buffer memory of described target BS execution in step 309-310,312; If described remaining video data are not buffered in the RAN buffer memory of described target BS execution in step 311-312
309, described target BS sends redirect message to described UE.
For example, the location header field in the redirect message has been indicated the URL address of target BS buffer memory:
HTTP/1.1?303?See?Other
Proxy-Connection：Keep-Alive
Connection：Keep-Alive
Content-Length：0
Via：1.1?SZXISA06-IN
Date：Thu，09May?2011?03:31:53?GMT
Location：http://sever2.example.com/
Content-Type：text/xml
Server：Microsoft-IIS/7.5
310, after described UE receives described redirect message, send the video download request to described target BS.
For example, described download request can for:
GET?http://sever1.example.com/media.flv？start＝11HTTP/1.1
Accept：*/*
Proxy-Connection：Keep-Alive
User-Agent：Mozilla/4.0(compatible；MSIE?6.0；Windows?NT?5.1；SV1)
Host：sever.example.com
Cookie：
311, described source base station sends to the SP server with the described HTTP request of obtaining.
312, described target BS is set up TCP with described UE and is connected transmitting video data.
For example, described source base station is as follows to described UE answer request:
HTTP/1.1?200?OK
Proxy-Connection：Keep-Alive
Connection：Keep-Alive
Content-Length：5950510
Via：1.1?SZXISA06-IN
Date：Mon，11?Oct?2010?01:49:42?GMT
Content-Type：video/flv
ETag：″920374983″
Server：sever.example.com
Last-Modified：Sun，10?Oct?2010?23:50:43?GMT
Compared with prior art, the embodiment of the invention can be when UE switches from source base station to target BS, described source base station determines whether all be sent completely to the nearest video unit that described UE sends, if described video unit all is sent completely, then described UE directly downloads by target BS or SP server and does not download the remaining video data of finishing; If described video unit all is not sent completely, then source base station is transmitted to described target BS with the remainder of described video unit by X2 interface, described video unit can be defined as the capacity smaller units according to capacity or time span, avoid source base station to transmit the continuity that has guaranteed the UE displaying video when larger data impacts to X2 interface, promoted user's experience.
Fig. 4 is the structural representation of a kind of base station of the present invention, and as shown in Figure 4, described base station comprises:
Blocking module 41 is used for the interception user equipment (UE) and obtains request to the HTML (Hypertext Markup Language) HTTP that the service provider SP server sends, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station;
Further, described message transmission module 44 also is used for:
When described remaining video data are not buffered in the RAN buffer memory of described target BS, send described HTTP to described SP server and obtain request.
Further, as shown in Figure 5, described base station can also comprise:
Connect and set up module 45, be used for the video download request according to described UE transmission, set up transmission control protocol TCP with described UE and be connected;
Remaining data sending module 46 is used for sending described remaining video data to described UE after described connection is set up module 45 and described UE and set up TCP and be connected.
Further, as shown in Figure 5, described base station can also comprise:
Processing module 47, be used for receiving the video data that described source base station sends, and described video data is sent to described UE, wherein, described video data is described UE when being in source base station, the part that is not sent completely of last video unit that described source base station sends to described UE.
Wherein, the uniform resource position mark URL address that comprises described video data buffer memory in the redirect message that described message transmission module 44 sends.
Compared with prior art, the embodiment of the invention can be after UE switches to target BS, target BS determines whether the video data of described UE request is present in the RAN buffer memory of self, if be present in the RAN buffer memory of self, then UE is directly postponed to leave and carried uncompleted video; If be not present in the RAN buffer memory of self, then the video request with UE sends to the SP server, directly download uncompleted video from the SP server, the impact that when having avoided source base station that the video data in self buffer memory is transmitted to target BS X2 interface has been caused, guarantee the continuity of UE displaying video, promote the user and experience.
Fig. 6 is the structural representation of the another kind of base station of the present invention, and as shown in Figure 6, described base station comprises:
Data transmission blocks 62 is used for when described first determination module, 61 definite video units all are not sent completely, and the remainder of described video unit is transmitted to described target BS.
Wherein, the video unit of described data transmission blocks 62 transmissions comprises:
The size of a frame of video and described frame of video; Perhaps,
Video data in the setting-up time; Perhaps,
Set the video data of amount of capacity.
Compared with prior art, the embodiment of the invention can be when UE switches from source base station to target BS, described source base station determines whether that the described UE that need store in the described target BS forwarding cache does not download the partial video data of finishing, if need to transmit described partial video data, then source base station is divided into smaller units with described partial video data and is transmitted to described target BS by X2 interface, the impact that when having avoided source base station that the video data in self buffer memory is transmitted to target BS X2 interface has been caused, guarantee the continuity of UE displaying video, promote the user and experience.
The above-mentioned method embodiment that provides can be provided for the video traffic data transmission method that the embodiment of the invention provides and base station, and concrete function realizes seeing also the explanation among the method embodiment, does not repeat them here.The video traffic data transmission method that the embodiment of the invention provides and base station go for the video transport service of using wireless access network to carry out, but are not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (14)
1. a video traffic data transmission method is characterized in that, comprising:
Target BS interception user equipment (UE) obtains request to the HTML (Hypertext Markup Language) HTTP that the service provider SP server sends, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station;
Described target BS is determined the remaining video data according to the original position of described remaining video data;
Described target BS determines whether described remaining video data are buffered in the wireless access network RAN buffer memory of described target BS;
If described remaining video data are buffered in the RAN buffer memory of described target BS, described target BS sends redirect message to described UE.
2. method according to claim 1 is characterized in that, if described remaining video data are not buffered in the RAN buffer memory of described target BS, send described HTTP to described SP server and obtains request.
3. method according to claim 1 is characterized in that,, also comprises after described UE sends redirect message described:
Receive the video download request that described UE sends, set up transmission control protocol TCP with described UE and be connected;
Send described remaining video data to described UE.
4. method according to claim 1 is characterized in that, before the HTTP that described target BS interception UE sends to the SP server obtains request, also comprises:
Described target BS receives the video data that described source base station sends, and described video data sent to described UE, wherein, described video data is described UE when being in source base station, the part that is not sent completely of last video unit that described source base station sends to described UE.
5. method according to claim 1 is characterized in that, comprises the uniform resource position mark URL address of described remaining video data buffer memory in the described redirect message.
6. a video traffic data transmission method is characterized in that, comprising:
Source base station determines whether all be sent completely to the nearest video unit that described UE sends after user equipment (UE) switches to target BS;
If described video unit all is not sent completely, then described source base station is transmitted to described target BS with the remainder of described video unit.
7. method according to claim 6 is characterized in that, described video unit comprises:
The size of a frame of video and described frame of video; Perhaps,
Video data in the setting-up time; Perhaps,
Set the video data of amount of capacity.
8. a base station is characterized in that, comprising:
Blocking module is used for the interception user equipment (UE) and obtains request to the HTML (Hypertext Markup Language) HTTP that the service provider SP server sends, and described HTTP obtains and comprises in the request that described UE does not download the original position of the remaining video data of finishing when being in source base station;
First determination module is determined the remaining video data for the original position of the described remaining video data of tackling according to described blocking module;
Second determination module is used for determining whether the definite described remaining video data of described first determination module are buffered in the wireless access network RAN buffer memory of target BS;
Message transmission module when determining that for described second determination module described remaining video data are buffered in the RAN buffer memory of described target BS, sends redirect message to described UE.
9. base station according to claim 8 is characterized in that, described message transmission module also is used for:
When described remaining video data are not buffered in the RAN buffer memory of described target BS, send described HTTP to described SP server and obtain request.
10. base station according to claim 8 is characterized in that, described base station also comprises:
Connect and set up module, be used for the video download request according to described UE transmission, set up transmission control protocol TCP with described UE and be connected;
The remaining data sending module is used for sending described remaining video data to described UE after described connection is set up module and described UE and set up TCP and be connected.
11. base station according to claim 8 is characterized in that, described base station also comprises:
Processing module, be used for receiving the video data that described source base station sends, and described video data is sent to described UE, wherein, described video data is described UE when being in source base station, the part that is not sent completely of last video unit that described source base station sends to described UE.
12. base station according to claim 8 is characterized in that, comprises the uniform resource position mark URL address of described remaining video data buffer memory in the redirect message that described message transmission module sends.
13. a base station is characterized in that, comprising:
First determination module is used for after user equipment (UE) switches to target BS, determines whether all be sent completely to the nearest video unit that described UE sends;
Data transmission blocks is used for when described first determination module determines that video unit all is not sent completely, and the remainder of described video unit is transmitted to described target BS.
14. base station according to claim 13 is characterized in that, the video unit that described data transmission blocks sends comprises:
The size of a frame of video and described frame of video; Perhaps,
Video data in the setting-up time; Perhaps,
Set the video data of amount of capacity.
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| CN106231607A (en) * | 2016-09-21 | 2016-12-14 | 北京佰才邦技术有限公司 | The method of a kind of resource distribution and base station |
| CN108111866A (en) * | 2016-11-24 | 2018-06-01 | 法乐第(北京)网络科技有限公司 | The control method and system of audio and video playing |
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| CN103260195B (en) | 2016-06-08 |
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