CN101989902A - Data retransmission method and device - Google Patents
Data retransmission method and device Download PDFInfo
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- CN101989902A CN101989902A CN201010546819XA CN201010546819A CN101989902A CN 101989902 A CN101989902 A CN 101989902A CN 201010546819X A CN201010546819X A CN 201010546819XA CN 201010546819 A CN201010546819 A CN 201010546819A CN 101989902 A CN101989902 A CN 101989902A
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Abstract
The invention discloses data retransmission method and device. The method comprises the following steps of: presetting the parameter information of data to be retransmitted at a receiving end; detecting the packet loss rate of received message data at the receiving end; determining the data to be retransmitted according to the parameter information when the packet loss rate is judged to be greater than the preset packet loss rate threshold, extracting the identification information of the data to be retransmitted, sending the identification information to a transmitting end, and requesting data retransmission. In the invention, a user specifies the data requiring high quality transmission by providing a user customization mechanism, data retransmission is executed for the packet loss of the data, and the packet loss of other data is not concerned. Thus, the invention not only can ensure that a part of data requiring high quality transmission can be retransmitted after loss, but also can not aggravate network burden in wide range.
Description
Technical field
The present invention relates to the network communication and transmission technical field, in particular, relate to a kind of data repeating method and device.
Background technology
Signals such as the audio frequency that transmits in the network owing to consider ageing and the utilization of resources, all are to use UDP (User Datagram Protocol, User Datagram Protoco (UDP)) message to transmit.Data are transmitted in network, can produce the situation of packet loss because of factors such as the network bandwidth are not enough unavoidably.Because the UDP transmission has insecure speciality, so audio quality is required need carry out retransmission operation according to the packet drop of its message than under the condition with higher.
The data re-transmission technology is exactly after receiving terminal is found packet loss, to send retransmission instructions, requires transmitting terminal to resend the data of being lost, with a kind of method of the integrality that guarantees transfer of data.
With reference to shown in Figure 1, be data retransmission method flow chart in the existing network, said method comprising the steps of:
Step 101:, carry out packet loss and detect at the receiving terminal of data;
Step 102: whether judge packet loss greater than the fault value, if, execution in step 103; If not, execution in step 106;
Step 103: extract the identification information that is dropped message;
Step 104: send the transmitting terminal of this identification information, require to retransmit to message;
Step 105: the transmitting terminal of message retransmits this message, forwards step 101 to;
Step 106: finish Data Receiving, finish.
As seen, because existing data re-transmission technology is that all are lost the re-transmission action that message carries out, when the network bandwidth was nervous, the data of re-transmission can further take the network bandwidth again, thereby add the burden of macroreticular, and emphasis network is congested.
Summary of the invention
Technical problem to be solved by this invention is, cause in the integrality that guarantees transfer of data with to the network bandwidth and to seek a balance point between the burden, propose a kind ofly both can guarantee that the customization data can access re-transmission after losing, again not the data repeating method and the device of emphasis network burden on a large scale.
In order to solve the problems of the technologies described above, the invention provides a kind of data repeating method, comprising:
Receiving terminal sets in advance the parameter information of the data that need re-transmission;
Receiving terminal detects packet loss to the message data that receives;
When determining described packet loss greater than default packet loss threshold value, determine the data that needs retransmit according to described parameter information, extract the identification information of the data that need re-transmission, send described identification information to transmitting terminal, request data retransmission.
Furthermore, described parameter information comprises: one or more in source address, user ID, the data category.
Furthermore, described packet loss threshold value is system default or is set by the user.
Furthermore, after the step of the identification information of the data that described extraction need retransmit, also comprise:
Receiving terminal is oriented the transmitting terminal of the data that need re-transmission according to described identification information, and the described characteristic information that needs the data of re-transmission.
Furthermore, described method also comprises:
Transmitting terminal is determined the data that needs retransmit according to described identification information, and retransmits.
In order to solve the problems of the technologies described above, the present invention also provides a kind of data re-transmission device, is arranged at data receiver, comprising:
Module is set, is used to set in advance the parameter information of the data that needs retransmit;
Detection module is used for the message data that receives is detected packet loss;
Judge module is used for determining the data that needs retransmit when determining described packet loss greater than default packet loss threshold value according to described parameter information;
Processing module is used to extract the identification information of the data that needs retransmit, and sends described identification information to transmitting terminal, request data retransmission.
Furthermore, the described module that is provided with is further used for setting in advance described parameter information and comprises: one or more in source address, user ID, the data category.
Furthermore, described packet loss threshold value is a system default.
Furthermore, the described module that is provided with is further used for setting the packet loss threshold value.
Furthermore, described processing module is further used for according to described identification information, orients the transmitting terminal of the data that need re-transmission, and the described characteristic information that needs the data of re-transmission.
The present invention specifies the data that need high-quality transmission by proposing a kind of customization mechanism by the user, carries out data re-transmission for the packet loss of these data, and the packet loss of other data will not be paid close attention to.So both can guarantee that part needed the data of high-quality transmission can access re-transmission after losing, again not on a large scale emphasis network bear.
Description of drawings
Fig. 1 is a data retransmission method flow chart in the existing network.
Fig. 2 is the flow chart of data repeating method first embodiment based on customization of the present invention.
Fig. 3 is the flow chart of data repeating method second embodiment based on customization of the present invention.
Fig. 4 is a data re-transmission apparatus structure schematic diagram of the present invention.
Embodiment
The present invention proposes to carry out the customization mode for data re-transmission, the user can be according to needs and the focus of self, for quality requirements such as audio frequency very high occasion and scene, specify the parameter information of the data that need re-transmission, for example parameters such as from source address, user ID, data category customize out some user's interest data.Receiving equipment can filter out these parameters at an easy rate by chip controls, and these data that satisfy customer requirements are followed the tracks of and added up.
Then according to system default, or specify the packet loss of each data equally, satisfy whole retransmission mechanism, the characteristics of customization by the difference of user according to needs of controlling oneself or application scenarios.When the packet loss of user's specific data reached user's specified threshold value, receiving equipment required to retransmit to this packet loss.Other are not satisfied the data of customization mode,, retransmit the pressure that the network bandwidth is brought thereby reduce total data even there is packet loss to abandon the operation that retransmits yet.
For making characteristics of the present invention and realization distincter, the data repeating method that the present invention is based on customization is described below in conjunction with accompanying drawing and preferred embodiment.
With reference to shown in Figure 2, be the flow chart of data repeating method first embodiment based on customization of the present invention.Said method comprising the steps of:
Step 201: the parameter information that sets in advance the data that need re-transmission;
Step 202: receiving terminal detects packet loss for the message data that receives;
Step 203: when determining described packet loss, determine the data that needs retransmit, extract the identification information of the data that need re-transmission, send described identification information to transmitting terminal, request data retransmission according to described parameter information greater than default packet loss threshold value;
Step 204: transmitting terminal is determined the data that needs retransmit according to described identification information, and retransmits.
With reference to shown in Figure 3, be the data retransmission method second embodiment flow chart based on customization of the present invention, said method comprising the steps of:
Step 301: customization retransmits model, and according to user's interest data or application scenarios, one or more in the parameters such as specified source addresses, user ID, data category are made the re-transmission model that satisfies customer requirements;
Certainly, can set the data that needs retransmit according to other parameter information, the present invention is not limited for the kind of parameter information yet.
Step 302: receiving terminal detects packet loss for the message that receives;
Step 303: whether judge packet loss greater than threshold value, if, execution in step 304; If not, execution in step 308;
Step 304: judge whether these data that satisfy the packet loss threshold value are the customization data, if, execution in step 305; If not, execution in step 308;
Step 305: extract the identification information that needs data retransmission,, orient the transmitting terminal of the data that need re-transmission according to these identification informations, and some characteristic informations of the data that should retransmit, make things convenient for transmitting terminal to retransmit this data;
Step 306: send identification information to transmitting terminal, request data retransmission;
Step 307: transmitting terminal is determined the data that needs retransmit according to described identification information, and transmitting terminal retransmits this data, execution in step 302;
Step 308: finish Data Receiving, finish.
The threshold value that it is pointed out that the packet loss in the step 303 is to be specified by the user, according to the TL of user to packet loss, perhaps for the requirement of data transmission quality, is specified voluntarily by the user, satisfies whole retransmission mechanism, the characteristics of customization; Certainly, described threshold value can be to use system default, and the present invention is not limited this.
With reference to shown in Figure 4, be data re-transmission apparatus structure schematic diagram of the present invention, described data re-transmission device is arranged at data receiver, comprising: module 401, detection module 402, judge module 403, processing module 404 are set.
The described module 401 that is provided with is used to set in advance the parameter information of the data that needs retransmit;
Described detection module 402 is used for the message data that receives is detected packet loss;
Described judge module 403 is used for determining the data that needs retransmit when determining described packet loss greater than default packet loss threshold value according to described parameter information;
Described processing module 404 is used to extract the identification information of the data that needs retransmit, and sends described identification information to transmitting terminal, request data retransmission.
In a preferred embodiment of the invention, the described module 401 that is provided with is further used for setting in advance described parameter information and comprises: one or more in source address, user ID, the data category.
Certainly, can set the data that needs retransmit according to other parameter information, the present invention is not limited for the kind of parameter information yet.
In a preferred embodiment of the invention, described packet loss threshold value is a system default, perhaps by the described module 401 that is provided with, further sets the packet loss threshold value.
In a preferred embodiment of the invention, described processing module 404 is further used for according to described identification information, orients the transmitting terminal of the data that need re-transmission, and the described characteristic information that needs the data of re-transmission.
The present invention proposes demand, formulate specific retransmission scheme,, these are lost message retransmit when user's interest message packet loss during greater than threshold value by the user according to the user.When having guaranteed the high quality audio transmission integrity of customer requirements, can not cause too much influence like this to network.
It is pointed out that the above only is the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. a data repeating method is characterized in that, comprising:
Receiving terminal sets in advance the parameter information of the data that need re-transmission;
Receiving terminal detects packet loss to the message data that receives;
When determining described packet loss greater than default packet loss threshold value, determine the data that needs retransmit according to described parameter information, extract the identification information of the data that need re-transmission, send described identification information to transmitting terminal, request data retransmission.
2. data repeating method as claimed in claim 1 is characterized in that,
Described parameter information comprises: one or more in source address, user ID, the data category.
3. data repeating method as claimed in claim 1 is characterized in that,
Described packet loss threshold value is system default or is set by the user.
4. data repeating method as claimed in claim 1 is characterized in that, after the step of the identification information of the data that described extraction need retransmit, also comprises:
Receiving terminal is oriented the transmitting terminal of the data that need re-transmission according to described identification information, and the described characteristic information that needs the data of re-transmission.
5. data repeating method as claimed in claim 1 is characterized in that, also comprises:
Transmitting terminal is determined the data that needs retransmit according to described identification information, and retransmits.
6. a data re-transmission device is arranged at data receiver, it is characterized in that, comprising:
Module is set, is used to set in advance the parameter information of the data that needs retransmit;
Detection module is used for the message data that receives is detected packet loss;
Judge module is used for determining the data that needs retransmit when determining described packet loss greater than default packet loss threshold value according to described parameter information;
Processing module is used to extract the identification information of the data that needs retransmit, and sends described identification information to transmitting terminal, request data retransmission.
7. data re-transmission device as claimed in claim 6 is characterized in that,
The described module that is provided with is further used for setting in advance described parameter information and comprises: one or more in source address, user ID, the data category.
8. data re-transmission device as claimed in claim 6 is characterized in that,
Described packet loss threshold value is a system default.
9. data re-transmission device as claimed in claim 6 is characterized in that,
The described module that is provided with is further used for setting the packet loss threshold value.
10. data re-transmission device as claimed in claim 6 is characterized in that,
Described processing module is further used for according to described identification information, orients the transmitting terminal of the data that need re-transmission, and the described characteristic information that needs the data of re-transmission.
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| CN103051860A (en) * | 2012-12-27 | 2013-04-17 | 中兴通讯股份有限公司 | Video refreshing method, device, media gateway control equipment and media processing equipment |
| CN103067957A (en) * | 2013-02-07 | 2013-04-24 | 深圳市磊科实业有限公司 | Wireless data transmission system applied to peer-to-peer environment and implementation method thereof |
| CN103312705A (en) * | 2013-06-04 | 2013-09-18 | 腾讯科技（深圳）有限公司 | Data transmission method, device and system |
| CN103516477A (en) * | 2012-06-29 | 2014-01-15 | 华为技术有限公司 | Data transmission method and device |
| CN106230562A (en) * | 2015-07-31 | 2016-12-14 | 北京智谷睿拓技术服务有限公司 | Data repeating method, data reconstruction method and device thereof |
| CN114257836A (en) * | 2021-12-17 | 2022-03-29 | 青岛海信宽带多媒体技术有限公司 | Set top box and packet loss processing method |
| CN114584844A (en) * | 2020-11-30 | 2022-06-03 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and playing terminal |
| CN114584845A (en) * | 2020-11-30 | 2022-06-03 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and playing terminal |
| CN114598377A (en) * | 2022-02-21 | 2022-06-07 | 北京富通亚讯网络信息技术有限公司 | Reliable data transmission system based on satellite network |
| CN115314445A (en) * | 2022-08-26 | 2022-11-08 | 杭州朗和科技有限公司 | Data message transmission method and device, storage medium and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103516477A (en) * | 2012-06-29 | 2014-01-15 | 华为技术有限公司 | Data transmission method and device |
| CN103051860A (en) * | 2012-12-27 | 2013-04-17 | 中兴通讯股份有限公司 | Video refreshing method, device, media gateway control equipment and media processing equipment |
| CN103067957A (en) * | 2013-02-07 | 2013-04-24 | 深圳市磊科实业有限公司 | Wireless data transmission system applied to peer-to-peer environment and implementation method thereof |
| CN103067957B (en) * | 2013-02-07 | 2016-04-27 | 深圳市磊科实业有限公司 | A kind of wireless system for transmitting data and its implementation being applied to point-to-point environment |
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| CN106230562A (en) * | 2015-07-31 | 2016-12-14 | 北京智谷睿拓技术服务有限公司 | Data repeating method, data reconstruction method and device thereof |
| CN114584844A (en) * | 2020-11-30 | 2022-06-03 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and playing terminal |
| CN114584845A (en) * | 2020-11-30 | 2022-06-03 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and playing terminal |
| CN114584844B (en) * | 2020-11-30 | 2023-09-22 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and intelligent set top box |
| CN114584845B (en) * | 2020-11-30 | 2023-10-20 | 青岛海信宽带多媒体技术有限公司 | RTP packet loss retransmission method and device and intelligent set top box |
| CN114257836A (en) * | 2021-12-17 | 2022-03-29 | 青岛海信宽带多媒体技术有限公司 | Set top box and packet loss processing method |
| CN114598377A (en) * | 2022-02-21 | 2022-06-07 | 北京富通亚讯网络信息技术有限公司 | Reliable data transmission system based on satellite network |
| CN114598377B (en) * | 2022-02-21 | 2022-12-06 | 北京富通亚讯网络信息技术有限公司 | Reliable data transmission system based on satellite network |
| CN115314445A (en) * | 2022-08-26 | 2022-11-08 | 杭州朗和科技有限公司 | Data message transmission method and device, storage medium and electronic equipment |
| CN115314445B (en) * | 2022-08-26 | 2023-12-12 | 网易（杭州）网络有限公司 | Data message transmission method and device, storage medium and electronic equipment |
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