CN101588595B - Method for dynamically regulating data transfer rate in wireless application service system - Google Patents
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Abstract
A method for dynamically regulating data transfer rate by storing data according to different service quality grades and dynamically selecting data with different service quality grades for sending in a wireless application service system is provided. The wireless application service system comprises a wireless data acquiring device, an intelligent control service device and a wireless communication user terminal. The intelligent control service device of the wireless application service system regulates the qualities of data input sources according to the requirements of wireless communication user terminals and the maximum quality supported by the wireless data acquiring device, and sets different service quality grades to store source data; when real-time play service or replay service is carried out, the intelligent control service device dynamically regulates and selects the data source with different service quality grades according to the feedback channel quality reports of the current wireless communication user terminal, including signal intensity, signal-to-noise radio, path damage, packet loss ratio and the like, and sends the data selected to the data source to the corresponding wireless communication user terminal.
Description
Technical field
The present invention relates to a kind of method of dynamically regulating data transfer rate in wireless application service system.Special; The invention provides a kind of on the Based Intelligent Control service equipment of said wireless application service system according to different services credit ratings storage data, and come the method for dynamically adjustment and wireless communication user terminal room transmission rate through the data of selecting different services credit ratings.
Background technology
WLAN and public wireless communication network be comparative maturity technically at present, and has obtained using widely.Common wireless communication net wherein; Comprise such as GSM/GPRS/EDGE, WCDMA/HSDPA/HSUPA/HSPA+, CDMA/CDMA2000/CDMA2000-EVDO, TD-SCDMA/HSDPA/HSUPA/HSPA ten and LTE system etc.; It is advantageous that coverage is very wide, the user can roam into each country easily.In the common wireless communication net use of intelligent terminal such as mobile phone very convenient with extensively, become requisite personal electronic equipments in current people's life.System such as WLAN such as WIFI then has advantages such as networking is convenient, flexible, radiation is low, user's available bandwidth is bigger.
Existing wireless application service system transmits data through WLAN and public wireless communication network basically, like information such as video and voice datas, to the intelligent wireless terminals such as mobile phone that the user hands.Because the user who in cordless communication network, serves is very many, limited bandwidth is shared by a plurality of users, the customer requirements data quantity transmitted occurs through regular meeting and makes transmission link congested situation occur greatly.
Congested measurement report mechanism has been realized preventing in common wireless communication net inside; Like measurement and the feedback that the signal strength signal intensity of Serving cell and adjacent sub-district, path loss, wireless channel carrier/interface ratio etc. are carried out; To the transmit buffer of layer two, measurement and the feedback etc. of crc error ratio B LER on the transmission channel; And feed back to network equipment through mobile phone and control the better sub-district of handset-selected signal quality, and select different transformats to carry out data and send.These methods have guaranteed the transmission quality between the network equipment in mobile phone and the common wireless communication net, but can't realize the control to end-to-end transmission quality, can't control the transmission rate of sending data from the source.
The most modes of using http protocol to download and play behind the audio, video data on the transfer server in wireless communication user terminal in the existing wireless application service system, this mode can't satisfy real-time play and the dynamically requirement of adjustment transmission rate.Some system has then adopted the RTSP/RTP/RTCP agreement between wireless communication user terminal and server, to carry out the real time flow medium transmission; Wherein rtcp protocol has been set up effective mechanism to end-to-end transmission quality control; But do not comprise the distinctive parameter of combining wireless transmission environment, carry out the judgement of transmission rate adjustment like signal strength signal intensity RSSI, path loss, signal to noise ratio etc.Therefore need provide a kind of better method to be implemented in the wireless application service system; Dynamically adjust transmission rate between wireless terminal, server and the data acquisition equipment; To reach better real-time transmission data, guarantee broadcast service quality at the wireless communication user terminal to the wireless communication user terminal.
Summary of the invention
The technical problem that the present invention will solve is: different transmission meanss is adopted at different wireless communication user terminals, and its spendable bandwidth is inequality, and is also inequality to the quality requirement of streaming media playing.Server apparatus and data acquisition equipment need come dynamically that the adjustment server sends the transmission rate of data according to information such as the current intensity that receives wireless signal in demand, wireless link bandwidth ability and the wireless communication user terminal at wireless communication user terminal, packet loss, thereby obtain wireless communication user terminal better service quality.
In order to address the above problem, the invention provides a kind of dynamic adjusting data according to different services credit rating storages and through selecting other data of different quality level to change the method for transmission rate.Based Intelligent Control service equipment in the said wireless application service system is adjusted the quality of input data source according to the demand at wireless communication user terminal, the first water of data acquisition equipment support, and sets up different services credit ratings to store source data.When serving, the signal strength signal intensity that said Based Intelligent Control service equipment measures according to the current wireless communications user terminal, signal to noise ratio, path loss, packet loss etc. select the source data of different service quality grade to be transferred to different wireless communication user terminals.
The present invention comprises following characteristic:
1. dissimilar wireless communication user terminals is saved on the described Based Intelligent Control service equipment through in advance these rest mass relevant parameters such as amount of bandwidth that streaming media playing resolution requirement, pixel require, display screen is big or small, the transmission means of use is corresponding of oneself being registered.
2. said Based Intelligent Control service equipment both can form the user's QoS requirement rank list through the above-mentioned QoS parameter of preserving registration wireless communication user terminal type in advance, and the data that also can in service, send according to real time new adding wireless communication user terminal equipment come dynamically to increase this user's QoS requirement rank list.
3. said Based Intelligent Control service equipment sends to data acquisition equipment with the highest requirement of quality requirement in active user's QoS requirement rank list; The mass value that said data acquisition equipment will use " maximum user's QoS requirement class parameter " and " data acquisition equipment is supported the biggest quality " to get the smaller value acquisition among both is gathered video/audio; The most rationally satisfying the demand at terminal, and reduce taking as far as possible to wireless bandwidth.
4. said Based Intelligent Control service equipment is according to the user's QoS requirement rank list; The data that said data acquisition equipment is sent; Require to carry out the data processing of different service quality grade according to dissimilar service quality ratings, comprise abandoning or compressing audio, video data.Different service quality level data after handling is saved in the database respectively.
5. in receiving data procedures, the signal strength signal intensity that said wireless communication user terminal measures according to oneself and signal to noise ratio, path loss and packet loss etc., through wireless data transmission periodically perhaps according to a preconcerted arrangement incident feed back to said Based Intelligent Control service equipment.
6. said Based Intelligent Control service equipment is according to the signal strength signal intensity and the information such as the quality of reception and packet loss of different wireless communication user terminal feedback; Dynamically other data source of different quality level is selected in adjustment, and the data of choosing said data source are sent to corresponding wireless communication user terminal.
The present invention is through the static registered in advance mass transport requirement of said wireless communication user terminal; Perhaps registration mass transport requirement in real time after the newtype terminal enters into said wireless application service system; Let said Based Intelligent Control service equipment distinguish the demand of different terminals, and control the bandwidth that said data acquisition equipment uses through calculating current needed first water demand to quality.
After receiving the data that said data acquisition equipment sends, said Based Intelligent Control service equipment compresses the data source of preserving different stage again according to quality respectively to coming, and adapts to the bandwidth requirement in the wireless transmission.
Notify the Based Intelligent Control service equipment at wireless communication user terminal described in the wireless transmission process through the current wireless signal strength and the quality of reception of incident feedback periodically or according to a preconcerted arrangement, said Based Intelligent Control service equipment Dynamic Selection different stage data source sends to the wireless communication user terminal.In wireless broadband system, can guarantee to descend, when actual available bandwidth reduces like this at wireless transmission quality; Service equipment can be selected low-quality data source; Thereby reduce the congested of wireless transmitting system, reduce the Loss Rate of data in wireless transmission, improve user experience.
The present invention passes through said method; Can rationally use the wireless network bandwidth in the said wireless application service system; Method through real-time feedback current wireless signal strength signal intensity and transmission quality; The quality scale of Dynamic Selection transmission data source, thus message transmission rate on the source, reduced, improve the service quality that obtains at said wireless communication user terminal.
Description of drawings
Fig. 1 is a wireless application service system configuration diagram of the present invention;
Fig. 2 is that transmission control of the present invention and registration process realize sketch map.
Fig. 3 is a DRP data reception process sketch map of the present invention.
Fig. 4 is a data transmission procedure sketch map of the present invention.
Fig. 5 is message and a data interaction sketch map between distinct device of the present invention.
Embodiment
To combine accompanying drawing the present invention to be carried out detailed description below with implementing.
Fig. 1 is a wireless application service system structural representation of the present invention; 102 is the Based Intelligent Control service equipment of said wireless application service system among the figure; 103 is the wireless communication user terminal of one or more use common wireless communication nets, and 101 is the data acquisition equipment of one or more WLANs.
Fig. 2 is that control of the present invention and registration process realize sketch map.
Dissimilar wireless communication user terminals is through register these rest mass relevant parameters such as amount of bandwidth that streaming media playing resolution requirement, pixel require, display screen is big or small, the use transmission means is corresponding of oneself in the user's QoS requirement rank list on the Based Intelligent Control service equipment that is saved in wireless application service system in advance.Control and registration process realize comprising the steps
Step 201: control on the Based Intelligent Control service equipment and registration process module begin the back and monitor whether there is user's services request.If receive the services request at said wireless communication user terminal, then get into step 202.Otherwise get back to step 201.
Step 202: read said user's QoS requirement rank list.
Step 204: wait for receiving adding registration request from user in real time, if receive new registration request, then get into step 205, otherwise get into step 207.
Step 205: judge whether to exist and the new terminal quality demand levels list item inequality that adds,, then directly get into step 207 if do not exist; Otherwise get into step 206.
Step 206: upgrade said user's QoS requirement rank list, add newly-increased service quality rating, get into step 207 then.
Step 207: obtain current quality requirement class information, obtain the corresponding service quality rating of user.Get into step 208.
Step 208: send maximum user's QoS requirement grade to data acquisition equipment, get into step 209.
Step 209: the beginning log-on data receives mission thread and data are sent mission thread.After said Data Receiving and the startup of transmission thread finish, get back to step 201.
Fig. 3 is a DRP data reception process sketch map of the present invention.
Step 301: after the Data Receiving mission thread on the Based Intelligent Control service equipment began, the data of receiving radio data collecting device got into step 302.
Step 302: judge in the tabulation of said quality requirement whether also have different service quality ratings,, otherwise get into step 304 if having then get into step 303.
Step 303: according to the current service quality rating of obtaining, select corresponding compression algorithm also can save as in the data to data storehouse of different brackets, return step 302.
Step 304: notification data transmission task is carried out data and is sent.
Fig. 4 is a data transmission procedure sketch map of the present invention.
Step 401: after the data transmission mission thread on the Based Intelligent Control service equipment begins, receive the channel-quality feedback report of said wireless communication user terminal equipment, get into step 402.
Step 402: judge whether channel quality data is lower than the setting threshold value in the channel-quality feedback report, perhaps whether does not receive channel quality reporting.If then get into step 403, otherwise get into step 408.
Step 403: judge whether timer Timer_to_Triger starts,, otherwise get into step 407 if then get into step 404.
Step 404: judge whether timer Timer_to_Triger is overtime,, otherwise get into step 409 if then get into step 405.
Step 405: reduce the service quality rating type that current said wireless communication user terminal is in, and save as active user's service quality rating information, get into step 406.
Step 406: the timer Timer_to_Triger that resets gets into step 409.
Step 407: start timer Timer_to_Triger, get into step 409.
Step 408: stop timer Timer_to_Triger, get into step 409.
Step 409: the data according in processing in real time of current service credit rating or the reading database get into step 410.
Step 410: the data of obtaining are sent to said wireless communication user terminal use.
Fig. 5 is equipment room message of the present invention and data interaction sketch map.。
At first said wireless communication user terminal is after the request service, and the services credit rating of sending the wireless communication user terminal is to said Based Intelligent Control service equipment;
After said Based Intelligent Control service equipment is received the services credit rating information at said wireless communication user terminal, with sending maximum user's QoS requirement to said data acquisition equipment;
Said data acquisition equipment continues to send image data to said Based Intelligent Control service equipment according to the mass value that MIN (maximum user's QoS requirement, equipment is supported the biggest quality) obtains;
Preserve playback of information if desired, said Based Intelligent Control service equipment will be preserved the different stage source data according to the quality requirement grade; Said Based Intelligent Control service equipment selects the corresponding data frame to continue to send to said wireless communication user terminal according to quality scale;
Said Based Intelligent Control service equipment request wireless communication user terminal feedback channel quality reporting;
Said wireless communication user terminal reports to said Based Intelligent Control service equipment according to incident feedback channel quality periodically or according to a preconcerted arrangement.After said Based Intelligent Control service equipment detects channel quality reporting,, the data value in channel quality reporting then can start timer Timer_to_triger by channel quality reporting if reaching to be lower than to set threshold value or do not receive;
Continue to be lower than threshold value when continuing the channel quality reporting data value to occur; Perhaps can't receive channel quality reporting because of network congestion always; And after timer Timer_to_triger is overtime; Said Based Intelligent Control service equipment will be adjusted the corresponding quality scale of user according to channel quality reporting, and continue to send data to said wireless communication user terminal according to new selection quality scale.
Claims (7)
1. the method for a dynamically regulating data transfer rate in wireless application service system is characterized in that, comprises the steps:
(1) the Based Intelligent Control service equipment of wireless application service system in advance the QoS parameter at the dissimilar wireless communication users of registration and preservation terminal form the user's QoS requirement rank list, also can be in service come the service quality rating definition in the dynamic said user's QoS requirement rank list of adjustment according to the new QoS parameter that sends at said wireless communication user terminal that adds;
(2) said Based Intelligent Control service equipment sends to data acquisition equipment with current high quality-of-service class parameter value in the said user's QoS requirement rank list, and said data acquisition equipment calculates and adjust the QoS parameter value of image data according to this parameter value;
(3) said Based Intelligent Control service equipment is to requested business datum; Carry out corresponding data processing according to different service quality class requirement in the said user's QoS requirement rank list; Comprise abandoning or packed data that the different service quality level data after handling is saved in respectively in the database;
(4) said wireless communication user terminal forms channel quality reporting according to the current signal strength signal intensity RSSI that measures, signal to noise ratio Ec/No, path loss Passloss, packet loss parameter, feeds back to said Based Intelligent Control service equipment through incident periodically or according to a preconcerted arrangement;
(5) said Based Intelligent Control service equipment is according to the channel quality report information of wireless communication user terminal feedback; Dynamically adjust the service quality rating of said wireless communication user terminal correspondence in said user's QoS requirement rank list, and select the data of this service quality rating data source to send to said wireless communication user terminal.
2. the method for dynamically regulating data transfer rate in wireless application service system according to claim 1; It is characterized in that; Can streaming media playing resolution requirement, picture pixel requirement, the display screen at said wireless communication user terminal service quality rating relevant parameter big or small, the corresponding amount of bandwidth of use transmission means be saved in the said user's QoS requirement rank list through the mode that preservation in advance perhaps receives in real time on the described Based Intelligent Control service equipment, and safeguard the service quality rating that different said wireless communication users terminal is corresponding.
3. the method for dynamically regulating data transfer rate in wireless application service system according to claim 1 is characterized in that, can comprise step (1), (2), (3), (4), (5) process; The Based Intelligent Control service equipment sends in the said user's QoS requirement rank list maximum service credit rating parameter value to said data acquisition equipment in the said step (2); Said data acquisition equipment is got the mass value that smaller value obtains according to " maximum user's QoS requirement class parameter " and " data acquisition equipment is supported the biggest quality " among both, and continuous collecting and the data of sending this mass value arrive said Based Intelligent Control service equipment.
4. the method for wireless application service dynamic adjusting data transmission rate according to claim 1 is characterized in that, can only comprise step (1), (3), (4), (5).
5. the method for dynamically regulating data transfer rate in wireless application service system according to claim 1; It is characterized in that; Said Based Intelligent Control service equipment is with requested service source data; Be saved in the different files in the database respectively according to the service quality rating in the said user's QoS requirement rank list, said Based Intelligent Control service equipment selects corresponding data to continue to send to said wireless communication user terminal according to the corresponding credit rating of different wireless communication user terminal.
6. the method for dynamically regulating data transfer rate in wireless application service system according to claim 1; It is characterized in that; Said wireless communication user terminal comes feedback quality to report to said Based Intelligent Control service equipment according to Event triggered periodically or according to a preconcerted arrangement, and said channel quality report information comprises signal strength signal intensity RSSI, signal to noise ratio Ec/No, path loss Passloss, the packet loss of current wireless link.
7. the method for dynamically regulating data transfer rate in wireless application service system according to claim 1 is characterized in that, the data of said Based Intelligent Control service equipment are sent mission thread and comprised the steps:
Step 1: after the data transmission mission thread on the Based Intelligent Control service equipment begins, receive the channel-quality feedback report at said wireless communication user terminal, get into step 2;
Step 2: judge whether channel quality data is lower than the setting threshold value in the channel-quality feedback report, perhaps whether does not receive channel quality reporting if then get into step 3, otherwise get into step 8;
Step 3: judge whether timer Timer_to_Triger starts,, otherwise get into step 7 if then get into step 4;
Step 4: judge whether timer Timer_to_Triger is overtime,, otherwise get into step 9 if then get into step 5;
Step 5: reduce the credit rating type that current said wireless communication user terminal use is in, and save as active user's credit rating information, get into step 6;
Step 6: the timer Timer_to_Triger that resets gets into step 9;
Step 7: start timer Timer_to_Triger, get into step 9;
Step 8: stop timer Timer_to_Triger, get into step 9;
Step 9:, get into step 10 according to the current service credit rating processing in real time at said wireless communication user terminal or the data in the reading database;
Step 10: the data of obtaining are sent to said wireless communication user terminal.
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| CN108696896B (en) * | 2017-04-12 | 2022-02-18 | 中国移动通信有限公司研究院 | Service quality control method and device |
| CN109217978A (en) | 2017-06-30 | 2019-01-15 | 华为技术有限公司 | The methods, devices and systems of data transmission |
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| CN111476987A (en) * | 2020-04-07 | 2020-07-31 | 黄河水利职业技术学院 | Intelligent monitoring method and system for collecting operation information of intelligent equipment |
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| CN113973231A (en) * | 2020-07-23 | 2022-01-25 | 成都鼎桥通信技术有限公司 | Video control method and system based on wireless signals and electronic equipment |
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