CN104219229A - Virtual desktop data transmission method and device - Google Patents
Virtual desktop data transmission method and device Download PDFInfo
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Abstract
The invention discloses a virtual desktop server and a virtual desktop data transmission method. The virtual desktop data transmission method includes that the virtual desktop server receives a virtual desktop request of a client and determines the current network transmission speed level according to the current network transmission environment; when the network transmission speed level is high, the virtual desktop data is compacted by the lossless compaction algorithm and then returned to the client through a high-speed network transmission passage; when the network transmission speed level is a medium speed, the words and images of the virtual desktop data, which are compacted by the lossless compaction algorithm, and the videos and audios of the virtual desktop data, which are compacted by lossy compaction algorithm, are returned to the client through a medium-speed network transmission passage; when the network transmission speed level is low, the virtual desktop data is compacted by the lossy compaction algorithm and then returned to the client through a low-speed network transmission passage. Thus synchronous transmission of the virtual desktop data is achieved, and user experience is improved.
Description
Technical field
The present invention relates to Internet technical field, particularly relate to a kind of transmission method and device of virtual desktop data.
Background technology
Desktop virtual is based on Client/Server (client/server) computation model, personal desktop's environment is separated from PC, the desktop of " virtual " is provided by server, can provide the Consumer's Experience identical with local desktop under local area network (LAN), wide area network and internet environment, but operating system, application, program and data are all in server end centralized management and operation.Desktop virtual has more advantage, such as, realizing application deployment, upgrade patch and the unified viral prevention and control strategy concentrated, making user by any equipment at any time and any place accesses network belonging to the desktop system etc. of individual.
About desktop virtual technology realization normally user sign in server at Terminal Server Client, virtual desktop data are transferred to client by server calls virtual desktop host-host protocol.Wherein, about the transmission of virtual desktop data, a kind of self adaptive transmission agreement stack for transfer of virtual desktop data is disclosed in prior art, be made up of channel type unit, encrypted data unit, data cell, channel type unit comprises master control passage, sound channel, video channel, peripheral channel, application passage, desktop passage.Voice data by becoming different resources to transmit the virtual desktop Data Division of server end, such as, is transmitted by sound channel by this patent, is transmitted by video data by video channel; Terminal equipment (such as thin client etc.) carries out assembled after obtaining the virtual desktop data of different channel transfer, thus obtains complete desktop display.
But, the present inventor finds that the method for above-mentioned transfer of virtual desktop data exists following defect or deficiency: under identical Internet Transmission environment, word can complete transmission very soon because its data volume is little, and the data volume of picture, sound and video is large, need the longer time just can complete transmission, it is different that this just makes to adopt different passage to complete time of transfer of data, cause word and picture, sound, transmission of video asynchronous; Especially, under the slow network transmission environment that bandwidth is lower, this asynchrony phenomenon will be more obvious, make Consumer's Experience not good; And, under the method for above-mentioned transfer of virtual desktop data also easily produces slow network transmission situation, the problem that transmission time is longer, also easily produces the problem that the virtual desktop quality of data transmitted in high speed network transmission situation is bad, the experience of user can be made equally not good.
Summary of the invention
For the defect that above-mentioned prior art exists, embodiments provide a kind of transmission method and device of virtual desktop data, while realizing virtual desktop data synchronization transmissions, adopt different data compression algorithms to realize the transmission of virtual desktop data according to different Internet Transmission environment, obtain better experience to make user.
Embodiments provide a kind of transmission method of virtual desktop data, comprising:
Virtual desktop server measures the information of current Internet Transmission environment after receiving the virtual desktop request of client transmission; Wherein, the packets of information includes network downstream rate of described Internet Transmission environment;
According to the information of current Internet Transmission environment, determine current network transfer speeds rank;
Adopt the data compression strategy corresponding with the network transfer speeds rank determined, after the virtual desktop data of virtual desktop request being asked are compressed, returned to described client by the network transmission channels corresponding with the network transfer speeds rank determined:
If the network transfer speeds rank determined is high speed rank, then, after adopting lossless compression algorithm to compress described virtual desktop data, returned to described client by high speed network transmission passage;
If the network transfer speeds rank determined is middling speed rank, lossless compression algorithm is then adopted to compress the word in described virtual desktop data, picture, after adopting Lossy Compression Algorithm to compress the video in described virtual desktop data, audio frequency, returned to described client by middling speed network transmission channels;
If the network transfer speeds rank determined is low speed rank, then, after adopting Lossy Compression Algorithm to compress described virtual desktop data, returned to described client by slow network transmission channel.
Preferably, the described information according to current Internet Transmission environment, determine current network transfer speeds rank, specifically comprise:
If current network downstream speed is less than first rate threshold value, then determine that current network transfer speeds rank is low speed rank;
If current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank;
If current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank;
Wherein, first rate threshold value is less than the second rate-valve value.
Preferably, the information of described Internet Transmission environment also comprises: network uplink speed, network delay, network jitter and network packet loss rate; And
The described information according to current Internet Transmission environment, determine current network transfer speeds rank, specifically comprise:
When current network downstream speed is greater than the second rate-valve value, if current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is high speed rank, otherwise determine that current network transfer speeds rank is middling speed rank;
When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold, network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank;
When current network downstream speed is less than first rate threshold value, determine that current network transfer speeds rank is low speed rank.
Preferably, described virtual desktop data are divided into several packets and transmit; And
The described information according to current Internet Transmission environment, after determining current network transfer speeds rank, also comprises:
If this network transfer speeds rank determined is not identical with the network transfer speeds rank determined last time, the corresponding network transmission channels of the network transfer speeds rank then determined last time is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank this determined is after current network transmission channel, the lane negotiation will notice carrying the information of current network transmission channel is sent to described client, and after receiving the confirmation that described client returns, determine current to the packet that described client sends, this packet is continued to send by legacy network transmission channel, and after adopting the data compression strategy corresponding with the network transfer speeds rank that this is determined to compress this packet, again sent to described client by current network transmission channel.
Wherein, described method redefines three-decker to realize on ICP/IP protocol basis; Described three-decker comprises: the data interface tier of the data link layer of bottom, the tunnel layer in middle level and top layer; Described tunnel layer comprises described high speed network transmission passage, described middling speed network transmission channels and described slow network transmission channel.
The embodiment of the present invention additionally provides a kind of virtual desktop server, comprising:
Request receiving module, for receive client send virtual desktop request after, send network detecting notice;
Network detecting module, after receiving described network detecting notice, measures the information of current Internet Transmission environment, and according to the information of current Internet Transmission environment, determines current network transfer speeds rank; Wherein, the packets of information includes network downstream rate of described Internet Transmission environment;
Data compressing module, for the data compression strategy that the network transfer speeds rank adopted with described network detecting module is determined is corresponding, the virtual desktop data of virtual desktop request being asked are compressed: if described network transfer speeds rank is high speed rank, after then adopting lossless compression algorithm to compress described virtual desktop data, send the first transmission notice; If described network transfer speeds rank is middling speed rank, lossless compression algorithm is then adopted to compress the word in described virtual desktop data, picture, and after adopting Lossy Compression Algorithm to compress the video in described virtual desktop data, audio frequency, send the second transmission notice; If described network transfer speeds rank is low speed rank, then, after adopting Lossy Compression Algorithm to compress described virtual desktop data, send the 3rd transmission notice;
Network transmission channels module, for by the data after the compression of described data compressing module, returned to described client by the network transmission channels corresponding with the network transfer speeds rank that described data compressing module is determined: after receiving the first transmission notice, the data after described data compressing module compression are returned to described client by high speed network transmission passage; After receiving the second transmission notice, the data after described data compressing module compression are returned to described client by middling speed network transmission channels; After receiving the 3rd transmission notice, the data after described data compressing module compression are returned to described client by slow network transmission channel.
Preferably, if described network detecting module is specifically for judging that current network downstream speed is less than first rate threshold value, then determine that current network transfer speeds rank is low speed rank; If judge, current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank; If judge, current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank; Wherein, first rate threshold value is less than the second rate-valve value.
Preferably, the information of described Internet Transmission environment also comprises: network uplink speed, network delay, network jitter and network packet loss rate; And
Described network detecting module is specifically for when current network downstream speed is greater than the second rate-valve value, if judge, current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is high speed rank, otherwise determine that current network transfer speeds rank is middling speed rank; When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if judge, current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold, network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank; When current network downstream speed is less than first rate threshold value, determine that current network transfer speeds rank is low speed rank.
Preferably, described virtual desktop data are divided into several packets and transmit; And
Described server also comprises:
Network transmission channels negotiation module, if not identical with the network transfer speeds rank determined last time for judging this network transfer speeds rank determined of described network detecting module, the corresponding network transmission channels of the network transfer speeds rank then determined last time is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank this determined is after current network transmission channel, the lane negotiation will notice carrying the information of current network transmission channel is sent to described client, and after receiving the confirmation that described client returns, sendaisle switching notice, and
Described network transmission channels module also for receive described passage bridge notice after, determine current to the packet that described client sends, this packet is continued to send by legacy network transmission channel, and after adopting the data compression strategy corresponding with this network transfer speeds rank determined of described network detecting module to compress this packet, again sent to described client by current network transmission channel.
Wherein, described network transmission channels module specifically comprises:
Data after described data compressing module compression, after receiving the first transmission notice, are returned to described client by high speed network transmission passage by high speed network transmission channel unit;
Data after described data compressing module compression, after receiving the second transmission notice, are returned to described client by middling speed network transmission channels by middling speed network transmission channels unit;
Data after described data compressing module compression, after receiving the 3rd transmission notice, are returned to described client by slow network transmission channel by slow network transmission channel unit.
In technical scheme of the present invention, in technical scheme of the present invention, based on different compression algorithms and network transmission channels, virtual desktop data are transmitted under different Internet Transmission environment, thus can under Internet Transmission environment preferably situation, making full use of bandwidth resources makes user obtain more perfect Consumer's Experience, when Internet Transmission environment is poor, reduce bandwidth consumption, to ensure that user can obtain good Consumer's Experience as far as possible; Further, be no matter when Internet Transmission environment better or poor, the word in virtual desktop data, picture, video, audio frequency etc. are all transmitted by a network transmission channels, can ensure the synchronous transmission of virtual desktop data.
Accompanying drawing explanation
Fig. 1 is the flow chart of the transmission method of the virtual desktop data of the embodiment of the present invention.
Fig. 2 is the internal structure block diagram of the virtual desktop server of the embodiment of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the present invention is described in more detail.But it should be noted that, the many details listed in specification are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present invention to one or more aspect of the present invention.
The term such as " module " used in this application, " system " is intended to comprise the entity relevant to computer, such as but not limited to hardware, firmware, combination thereof, software or executory software.Such as, module can be, but be not limited in: the thread of the process that processor runs, processor, object, executable program, execution, program and/or computer.For example, application program computing equipment run and this computing equipment can be modules.One or more module can be positioned at an executory process and/or thread.
The present inventor carries out analysis to prior art and finds, the virtual desktop transfer of data of prior art normally adopts same compression algorithm to compress rear transmission to virtual desktop data, that is the transmission of the virtual desktop data of prior art no matter current network transmission environment be (as fast in network downstream speed) or poor (as slow in network downstream speed, network delay large, network jitter and network packet loss rate large etc.), virtual desktop data are all compressed based on identical compression algorithm.
Therefore the present inventor considers, when carrying out virtual desktop transfer of data, can first detect Internet Transmission environment, and the compression algorithm used when determining transfer of virtual desktop data according to the information of the Internet Transmission environment of detecting; Such as, when Internet Transmission environment is better, the lower lossless compression algorithm of compression ratio is adopted to carry out the compression of virtual desktop data, like this can when not affecting user and receiving the speed of virtual desktop data, make full use of bandwidth resources, make user obtain the virtual desktop data of better quality, thus obtain good Consumer's Experience; And when Internet Transmission environment is poor, the higher compression algorithm of compression ratio is adopted to carry out the compression of virtual desktop data, reduce bandwidth consumption as far as possible, avoid because network is too poor and make user cannot obtain the problem of virtual desktop data for a long time, thus ensureing Consumer's Experience to a certain extent.And, what Internet Transmission environment the present inventor considers no matter under, all the word in virtual desktop data, picture, video, audio frequency etc. are packed all together and to be transmitted by a network transmission channels, thus the synchronous transmission of virtual desktop data can be realized.Wherein, compression ratio (Compression ratio) refers to the ratio of the size before the size after compressing file and compression.
Technical scheme of the present invention is described in detail below in conjunction with accompanying drawing.In the specific embodiment of the present invention, at TCP/IP (Transmission Control Protocol/Internet Protocol, transmission control protocol/Internet Protocol) on protocol basis, redefine three-decker: the data interface tier of the data link layer of bottom, the tunnel layer in middle level and top layer.
Wherein, tunnel layer comprises network detection channel, consults passage, several network transmission channels; Particularly, several network transmission channels can comprise high speed network transmission passage, middling speed network transmission channels and slow network transmission channel; Wherein, high speed network transmission passage be used in Internet Transmission environment better time carry out the transmission of virtual desktop data; Slow network transmission channel be used in Internet Transmission environment poor time carry out the transmission of virtual desktop data; And middling speed network transmission channels is used for the transmission carrying out virtual desktop data when Internet Transmission environment is general.Wherein, different network transmission channels based on compression algorithm and the difference such as checking algorithm and protocol format.In this article this agreement with the above-mentioned three-decker redefined is called self adaptation desktop protocol (Adaptive Desktop Protocol, ADP).
Based on above-mentioned self adaptation desktop protocol, the flow process of the transmission method of the virtual desktop data of the embodiment of the present invention, as shown in Figure 1, specifically comprises the steps:
S101: virtual desktop server measures the information of current Internet Transmission environment after receiving the virtual desktop request of client transmission.
Particularly, when user wants the virtual desktop of accessing oneself, send virtual desktop request by client to virtual desktop server.After virtual desktop server receives virtual desktop request, measure the information of current Internet Transmission environment; Wherein, the packets of information includes network downstream rate of Internet Transmission environment, also can comprise the information such as network uplink speed, network delay, network jitter and network packet loss rate further.
And virtual desktop server can periodically be carried out the measurement of Internet Transmission environment, namely carries out one-shot measurement every setting-up time section.
S102: virtual desktop server, according to the information of current Internet Transmission environment, determines current network transfer speeds rank.
Particularly, those skilled in the art can divide several network transfer speeds ranks according to real needs, such as, can divide three network transfer speeds ranks, comprise: high speed rank, middling speed rank and low speed rank.
For having divided three network transfer speeds ranks, i.e. high speed rank, middling speed rank and other situation of slow speed turbine stage, first rate threshold value and the second rate-valve value can be pre-set by those skilled in the art, determine that current network transfer speeds level method for distinguishing is specifically as follows according to the information of current Internet Transmission environment like this: if the network downstream speed in the information of current Internet Transmission environment (namely current network downstream speed) is less than first rate threshold value, then determine that current network transfer speeds rank is low speed rank, as ADSL dials up on the telephone, under 3G wireless Internet access waits Internet Transmission environment, network transfer speeds rank is generally low speed rank, if current network downstream speed is more than or equal to first rate threshold value, is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank, if current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank.Wherein, first rate threshold value is less than the second rate-valve value, and first rate threshold value can be set to 2Mbps, and the second rate-valve value can be set to 10Mbps.
Further, also can by one or several in the network uplink speed, network delay, network jitter and network packet loss rate etc. in the information of Internet Transmission environment measured, with network uplink speed together as the factor determining current network transfer speeds rank.Such as, for the situation of above-mentioned division three network transfer speeds ranks, when current network downstream speed is greater than the second rate-valve value, if current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is express network, otherwise determine that current network transfer speeds rank is middling speed network; When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold and network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank.Wherein, setting-up time threshold value, setting dithering threshold and setting packet loss threshold value are by those skilled in the art according to demand or manage and set.Such as, in actual applications, when current network downstream speed is 2Mbps, if network delay is 200ms, network jitter is 5%, and network packet loss rate is 5%, then can determine that current network transfer speeds rank is low speed rank.
In fact, network transfer speeds rank is not limited only to other division of above-mentioned high speed rank, middling speed rank and slow speed turbine stage; In actual applications, if divide n network transfer speeds rank, then determine that current network transfer speeds level method for distinguishing is specifically as follows: the network downstream speed in the information of current Internet Transmission environment and n-1 (n>2) the individual rate-valve value pre-set are compared, and according to being greater than current network downstream speed and being less than or equal to the rate-valve value of current network downstream speed, determine current network transfer speeds rank.Remember that current network downstream speed is v
dif, v
m≤ v
d<v
m+1, then determine that current network transfer speeds rank is m rank; Wherein, 1≤m<n-1, v
mand v
m+1be respectively m and m+1 rate-valve value.
S103: virtual desktop server adopts the data compression strategy corresponding with the network transfer speeds rank determined, after the virtual desktop data of virtual desktop request being asked are compressed, returned to client by the network transmission channels corresponding with the network transfer speeds rank determined.
Particularly, the corresponding data compression strategy of each network transfer speeds rank and network transmission channels can be pre-set, and corresponding relation is stored in transmitted data on network table.Virtual desktop server finds out the data compression strategy corresponding with the transmission speed rank determined and network transmission channels by the mode of Network Search transmission tables of data.
High speed rank, middling speed rank, other situation of slow speed turbine stage are divided into for network transfer speeds rank, if virtual desktop server determines that current network transfer speeds rank is for high speed, lossless compression algorithm is then adopted to compress all data that virtual desktop request is asked, and the data after compression are returned to client by high speed network transmission passage, thus make full use of bandwidth resources when Internet Transmission environment is better, to improve more perfect Consumer's Experience; If determine, current network transfer speeds rank is middling speed, the lossless compression algorithm data less to data volumes such as the word in virtual desktop data, pictures (comprising still image and dynamic picture) are then adopted to compress, the Lossy Compression Algorithm data larger to data volumes such as the video in virtual desktop data, audio frequency are adopted to compress, and the data after compression are returned to client by middling speed network transmission channels, thus when Internet Transmission environment is general, by carrying out lossy compression method ensure Consumer's Experience to video, sound as far as possible; If determine, current network transfer speeds rank is low speed, Lossy Compression Algorithm is then adopted to compress all data in virtual desktop data, and the data after compression are returned to client by slow network transmission channel, thus when Internet Transmission environment is poor, video is adopted to restriction frame number, reduces the compression algorithm of resolution etc., maximum reduction bandwidth consumption, ensures Consumer's Experience.Wherein, the compression ratio of lossless compression algorithm is less than the compression ratio of Lossy Compression Algorithm.Usually, the LZSS algorithm that lossless compression algorithm has Huffman (Huffman) algorithm and LZW (Lenpel-Ziv & Welch) compression algorithm, WinZIP adopts, Lossy Compression Algorithm can be the MNG algorithm that MP3 algorithm, video file that music file is commonly used adopt.
Usually, virtual desktop server is when returning virtual desktop data to client, by virtual desktop Data Placement for several packets send, namely virtual desktop data are divided into several packets and transmit.Wherein, the division of packet can divide according to the time span of the frame video in the video file in virtual desktop data, such as, the video in 1/24 second or shorter time span and word, picture, audio frequency etc. interior are during this period of time bundled in a packet and carry out compression transmission.
Further, virtual desktop server, according to the information of the current Internet Transmission environment measured, after determining current network transfer speeds rank, also can judge that whether this network transfer speeds rank determined is identical with the network transfer speeds rank determined last time, if identical, then proceed the transmission of virtual desktop data according to above-mentioned step S103, if not identical, then show that Internet Transmission environment changes, need the switching carrying out network transmission channels, the corresponding network transmission channels of the network transfer speeds rank determined last time of virtual desktop server is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank this determined is as current network transmission channel, and the lane negotiation will notice carrying the information of current network transmission channel is sent to client, and after receiving the confirmation that client returns, confirm to establish current network transmission channel with client, afterwards, determine current to the packet that client sends, this packet is continued to send by legacy network transmission channel, and adopt the data compression strategy corresponding with current network transfer speeds rank, after this packet is compressed, returned to client by current network transmission channel.By consulting channel transfer negotiation data between virtual desktop server and client, and determine according to negotiation data the network transmission channels that transfer of virtual desktop data uses; Wherein, negotiation data can comprise the information of above-mentioned current network transmission channel, as current network transmission channel based on compression algorithm, checking algorithm and protocol format etc.
If client first receives this packet from current network transmission channel, then abandon this packet received from legacy network transmission channel, adopt the assembled virtual desktop of this packet received from current network transmission channel; If first receive this packet from legacy network transmission channel, then abandon this packet received from current network transmission channel, adopt the assembled virtual desktop of this packet received from legacy network transmission channel.Therefore, the present invention is when Internet Transmission environment changes, the seamless switching between heterogeneous networks transmission channel can be realized, client there will not be the not congruent situation of video frame-skipping, sound interruption, text importing when receiving virtual desktop data, user is also without the need to again logging in, and that is user almost experiences and switches less than Internet Transmission environmental change or network transmission channels any impact brought.
Based on above-mentioned virtual desktop data transmission method, the internal structure block diagram of the virtual desktop server that the embodiment of the present invention provides, as shown in Figure 2, comprising: request receiving module 201, network detecting module 202, data compressing module 203 and network transmission channels module 204.
Request receiving module 201 for receive client send virtual desktop request after, to network detecting module 202 send network detecting notice.
Network detecting module 202, for after the network detecting notice that receives request receiving module 201 and send, is measured the information of current Internet Transmission environment, and according to the information of current Internet Transmission environment, is determined current network transfer speeds rank; Wherein, the packets of information includes network downstream rate of Internet Transmission environment.
Data compressing module 203 is for the corresponding data compression strategy of the network transfer speeds rank adopted with network detecting module 202 is determined, the virtual desktop data of virtual desktop request being asked are compressed: if network transfer speeds rank is high speed rank, after then adopting lossless compression algorithm to compress virtual desktop data, send the first transmission notice; If network transfer speeds rank is middling speed rank, then adopts lossless compression algorithm to compress the word in virtual desktop data, picture, and after adopting Lossy Compression Algorithm to compress the video in virtual desktop data, audio frequency, send the second transmission notice; If network transfer speeds rank is low speed rank, then, after adopting Lossy Compression Algorithm to compress virtual desktop data, send the 3rd transmission notice.
Network transmission channels module 204 is for the data after data compressing module 203 being compressed, returned to client by the network transmission channels corresponding with the network transfer speeds rank that data compressing module 203 is determined: after receiving the first transmission notice that data compressing module 203 sends, the data after data compressing module 203 being compressed are returned to client by high speed network transmission passage; After receiving the second transmission notice of data compressing module 203 transmission, the data after data compressing module 203 being compressed are returned to client by middling speed network transmission channels; After receiving the 3rd transmission notice of data compressing module 203 transmission, the data after data compressing module 203 being compressed are returned to client by slow network transmission channel.
Wherein, if network detecting module 202 is specifically for judging that current network downstream speed is less than first rate threshold value, then determine that current network transfer speeds rank is low speed rank; If judge, current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank; If judge, current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank; Wherein, first rate threshold value is less than the second rate-valve value.
Preferably, the information of Internet Transmission environment also can comprise: network uplink speed, network delay, network jitter and network packet loss rate.Correspondingly, when network detecting module 202 can also be greater than the second rate-valve value in current network downstream speed, if judge, current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is high speed rank, otherwise determine that current network transfer speeds rank is middling speed rank; When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if judge, current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold, network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank; When current network downstream speed is less than first rate threshold value, determine that current network transfer speeds rank is low speed rank.
Further, virtual desktop server also can comprise: network transmission channels negotiation module 205 (not shown in FIG.).
If network transmission channels negotiation module 205 is not identical with the network transfer speeds rank determined last time for judging this network transfer speeds rank determined of network detecting module 202, the corresponding network transmission channels of the network transfer speeds rank then determined last time by network detecting module 202 is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank that this is determined using network detecting module 202 is after current network transmission channel, the lane negotiation will notice carrying the information of current network transmission channel is sent to client, and after receiving the confirmation that client returns, to network transmission channels module 204 sendaisle switching notice.
Correspondingly, after the passage bridge that network transmission channels module 204 also sends for receiving network transmission channels negotiation module 205 notifies, determine current to the packet that client sends, this packet is continued to send by legacy network transmission channel, and after adopting the corresponding data compression strategy of this is determined with network detecting module 202 network transfer speeds rank to compress this packet, again sent to client by current network transmission channel.Wherein, virtual desktop data can be divided into several packets and transmit.
Particularly, above-mentioned network transmission channels module 204 specifically can comprise: high speed network transmission channel unit 211, middling speed network transmission channels unit 212 and slow network transmission channel unit 213.
High speed network transmission channel unit 211 for receive data compressing module 203 send the first transmission notice after, the data after data compressing module 203 being compressed are returned to client by high speed network transmission passage.
Middling speed network transmission channels unit 212 for receive data compressing module 203 send the second transmission notice after, the data after data compressing module 203 being compressed are returned to client by middling speed network transmission channels.
Slow network transmission channel unit 213 for receive data compressing module 203 send the 3rd transmission notice after, the data after data compressing module 203 being compressed are returned to client by slow network transmission channel.
In technical scheme of the present invention, based on different compression algorithms and network transmission channels, virtual desktop data are transmitted under different Internet Transmission environment, thus can under Internet Transmission environment preferably situation, making full use of bandwidth resources makes user obtain more perfect Consumer's Experience, when Internet Transmission environment is poor, reduce bandwidth consumption, to ensure that user can obtain good Consumer's Experience as far as possible; Further, be no matter when Internet Transmission environment better or poor, the word in virtual desktop data, picture, video, audio frequency etc. are all transmitted by a network transmission channels, can ensure the synchronous transmission of virtual desktop data.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, this program can be stored in computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a transmission method for virtual desktop data, is characterized in that, comprising:
Virtual desktop server measures the information of current Internet Transmission environment after receiving the virtual desktop request of client transmission; Wherein, the packets of information includes network downstream rate of described Internet Transmission environment;
According to the information of current Internet Transmission environment, determine current network transfer speeds rank;
Adopt the data compression strategy corresponding with the network transfer speeds rank determined, after the virtual desktop data of virtual desktop request being asked are compressed, returned to described client by the network transmission channels corresponding with the network transfer speeds rank determined:
If the network transfer speeds rank determined is high speed rank, then, after adopting lossless compression algorithm to compress described virtual desktop data, returned to described client by high speed network transmission passage;
If the network transfer speeds rank determined is middling speed rank, lossless compression algorithm is then adopted to compress the word in described virtual desktop data, picture, after adopting Lossy Compression Algorithm to compress the video in described virtual desktop data, audio frequency, returned to described client by middling speed network transmission channels;
If the network transfer speeds rank determined is low speed rank, then, after adopting Lossy Compression Algorithm to compress described virtual desktop data, returned to described client by slow network transmission channel.
2. the method for claim 1, is characterized in that, the described information according to current Internet Transmission environment, determines current network transfer speeds rank, specifically comprises:
If current network downstream speed is less than first rate threshold value, then determine that current network transfer speeds rank is low speed rank;
If current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank;
If current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank;
Wherein, first rate threshold value is less than the second rate-valve value.
3. the method for claim 1, is characterized in that, the information of described Internet Transmission environment also comprises: network uplink speed, network delay, network jitter and network packet loss rate; And
The described information according to current Internet Transmission environment, determine current network transfer speeds rank, specifically comprise:
When current network downstream speed is greater than the second rate-valve value, if current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is high speed rank, otherwise determine that current network transfer speeds rank is middling speed rank;
When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold, network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank;
When current network downstream speed is less than first rate threshold value, determine that current network transfer speeds rank is low speed rank.
4. method as claimed in claim 2 or claim 3, it is characterized in that, described virtual desktop data are divided into several packets and transmit; And
The described information according to current Internet Transmission environment, after determining current network transfer speeds rank, also comprises:
If this network transfer speeds rank determined is not identical with the network transfer speeds rank determined last time, the corresponding network transmission channels of the network transfer speeds rank then determined last time is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank this determined is after current network transmission channel, the lane negotiation will notice carrying the information of current network transmission channel is sent to described client, and after receiving the confirmation that described client returns, determine current to the packet that described client sends, this packet is continued to send by legacy network transmission channel, and after adopting the data compression strategy corresponding with the network transfer speeds rank that this is determined to compress this packet, again sent to described client by current network transmission channel.
5. method as claimed in claim 4, it is characterized in that, described method redefines three-decker to realize on ICP/IP protocol basis; Described three-decker comprises: the data interface tier of the data link layer of bottom, the tunnel layer in middle level and top layer; Described tunnel layer comprises described high speed network transmission passage, described middling speed network transmission channels and described slow network transmission channel.
6. a virtual desktop server, is characterized in that, comprising:
Request receiving module, for receive client send virtual desktop request after, send network detecting notice;
Network detecting module, after receiving described network detecting notice, measures the information of current Internet Transmission environment, and according to the information of current Internet Transmission environment, determines current network transfer speeds rank; Wherein, the packets of information includes network downstream rate of described Internet Transmission environment;
Data compressing module, for the data compression strategy that the network transfer speeds rank adopted with described network detecting module is determined is corresponding, the virtual desktop data of virtual desktop request being asked are compressed: if described network transfer speeds rank is high speed rank, after then adopting lossless compression algorithm to compress described virtual desktop data, send the first transmission notice; If described network transfer speeds rank is middling speed rank, lossless compression algorithm is then adopted to compress the word in described virtual desktop data, picture, and after adopting Lossy Compression Algorithm to compress the video in described virtual desktop data, audio frequency, send the second transmission notice; If described network transfer speeds rank is low speed rank, then, after adopting Lossy Compression Algorithm to compress described virtual desktop data, send the 3rd transmission notice;
Network transmission channels module, for by the data after the compression of described data compressing module, returned to described client by the network transmission channels corresponding with the network transfer speeds rank that described data compressing module is determined: after receiving the first transmission notice, the data after described data compressing module compression are returned to described client by high speed network transmission passage; After receiving the second transmission notice, the data after described data compressing module compression are returned to described client by middling speed network transmission channels; After receiving the 3rd transmission notice, the data after described data compressing module compression are returned to described client by slow network transmission channel.
7. server as claimed in claim 6, is characterized in that,
If described network detecting module specifically for judging that current network downstream speed is less than first rate threshold value, then determines that current network transfer speeds rank is low speed rank; If judge, current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, then determine that current network transfer speeds rank is middling speed rank; If judge, current network downstream speed is greater than the second rate-valve value, then determine that current network transfer speeds rank is high speed rank; Wherein, first rate threshold value is less than the second rate-valve value.
8. server as claimed in claim 6, it is characterized in that, the information of described Internet Transmission environment also comprises: network uplink speed, network delay, network jitter and network packet loss rate; And
Described network detecting module is specifically for when current network downstream speed is greater than the second rate-valve value, if judge, current network uplink speed is more than or equal to network downstream speed, then determine that current network transfer speeds rank is high speed rank, otherwise determine that current network transfer speeds rank is middling speed rank; When current network downstream speed is more than or equal to first rate threshold value and is less than the second rate-valve value, if judge, current network delay is less than setting-up time threshold value, network jitter is less than setting dithering threshold, network packet loss rate is less than setting packet loss threshold value, then determine that current network transfer speeds rank is middling speed rank, otherwise determine that current network transfer speeds rank is low speed rank; When current network downstream speed is less than first rate threshold value, determine that current network transfer speeds rank is low speed rank.
9. server as claimed in claim 7 or 8, it is characterized in that, described virtual desktop data are divided into several packets and transmit; And
Described server also comprises:
Network transmission channels negotiation module, if not identical with the network transfer speeds rank determined last time for judging this network transfer speeds rank determined of described network detecting module, the corresponding network transmission channels of the network transfer speeds rank then determined last time is as legacy network transmission channel, the corresponding network transmission channels of the network transfer speeds rank this determined is after current network transmission channel, the lane negotiation will notice carrying the information of current network transmission channel is sent to described client, and after receiving the confirmation that described client returns, sendaisle switching notice, and
Described network transmission channels module also for receive described passage bridge notice after, determine current to the packet that described client sends, this packet is continued to send by legacy network transmission channel, and after adopting the data compression strategy corresponding with this network transfer speeds rank determined of described network detecting module to compress this packet, again sent to described client by current network transmission channel.
10. server as claimed in claim 9, it is characterized in that, described network transmission channels module specifically comprises:
Data after described data compressing module compression, after receiving the first transmission notice, are returned to described client by high speed network transmission passage by high speed network transmission channel unit;
Data after described data compressing module compression, after receiving the second transmission notice, are returned to described client by middling speed network transmission channels by middling speed network transmission channels unit;
Data after described data compressing module compression, after receiving the 3rd transmission notice, are returned to described client by slow network transmission channel by slow network transmission channel unit.
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