CN101483883A - Data processing method, apparatus and communication system - Google Patents
Data processing method, apparatus and communication system Download PDFInfo
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- CN101483883A CN101483883A CNA200810207505XA CN200810207505A CN101483883A CN 101483883 A CN101483883 A CN 101483883A CN A200810207505X A CNA200810207505X A CN A200810207505XA CN 200810207505 A CN200810207505 A CN 200810207505A CN 101483883 A CN101483883 A CN 101483883A
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- 238000004891 communication Methods 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000012546 transfer Methods 0.000 claims description 12
- 241000209094 Oryza Species 0.000 claims description 8
- 235000007164 Oryza sativa Nutrition 0.000 claims description 8
- 235000021186 dishes Nutrition 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 235000009566 rice Nutrition 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/28—Flow control; Congestion control in relation to timing considerations
- H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
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Abstract
The embodiment of the invention discloses a data transmit method, which comprises calculating transmission delay when data waiting to be transmitted is transmitted to a receiving terminal; and when the transmission delay is smaller than minimum delay threshold, transmitting the data waiting to be transmitted, when the transmission delay is larger than maximum delay threshold, discarding the data waiting to be transmitted, and when the transmission delay is between the minimum delay threshold and the maximum delay threshold, treating the data waiting to be transmitted by adopting a probability packet loss method. Accordingly, the embodiment of the invention also discloses a data treatment device and a communication system, which can effectively reduce the transmission delay of business data and satisfy the business requirement of low delay.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of data processing method, device and communication system.
Background technology
Now,, therefore also the propagation delay time of cordless communication network is had higher requirement, wish further to reduce the propagation delay time of business datum in wireless network because increasing low time delay business is used in cordless communication network.For the propagation delay time of business datum at cordless communication network, generally be divided into two parts, a part is the propagation delay time on eating dishes without rice or wine, a part is the propagation delay time on the network equipment.Propagation delay time on eating dishes without rice or wine is meant business datum when data transmission channel transmits and the time delay that produces, and the propagation delay time on the network equipment mainly is because business datum is waited for the processed time delay of bringing in the buffering area formation of the network equipment.
At present, in the transmission course of business datum, when wait in the buffering area formation of business datum at the network equipment is sent out, adopt the method for the queue management of a kind of " buffer queue is the discarding traffic data completely then ".Promptly, the packet that carries business datum that the continuous receiving end/sending end of buffer queue meeting of the network equipment sends over, when the output speed of buffer queue during less than input rate, so, cached data packet can get more and more in the buffer queue, and the spatial cache of buffer queue also will be fewer and feweri thereupon, there is not remaining spatial cache until buffer queue, at this moment, if transmitting terminal has packet to issue the buffer queue of the network equipment again, buffer queue can all be lost the packet that this moment, transmitting terminal sent.
But, the inventor finds under study for action, the queue management method of this " buffer queue is the discarding traffic data completely then " of the prior art be buffer queue become full after discarding traffic data, and in fact, usually buffer queue become full before, congestion phenomenon has just taken place in network, when network takes place when congested, the data of transmitting by network will produce very big propagation delay time, can not satisfy the demand of low time delay business.
Summary of the invention
The embodiment of the invention provides a kind of data processing method, device and system, to reduce the propagation delay time of data, satisfies the demand of low time delay business.
The embodiment of the invention discloses a kind of data processing method, comprising: calculate transfer of data to be sent propagation delay time to receiving terminal; When described propagation delay time during less than the minimal time delay threshold value, send data to be sent, when described propagation delay time during greater than the maximum delay threshold value, abandon data to be sent, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
The embodiment of the invention also discloses a kind of data processing equipment, comprise: comprise propagation delay time computing unit, decision package, data transmission unit, data discarding unit, wherein, described propagation delay time computing unit is used to calculate transfer of data to be sent propagation delay time to receiving terminal; Described decision package, when being used for the propagation delay time value calculated when described propagation delay time computing unit less than the minimal time delay threshold value, trigger described transmitting element, when described propagation delay time greater than the maximum delay threshold value, trigger described discarding unit, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.Described transmitting element is used to send described data to be sent; Described discarding unit is used to abandon described data to be sent.
The embodiment of the invention also discloses a kind of communication system, comprise base station controller, but be connected with communication mode with the base station, described base station controller is used to calculate transfer of data to be sent propagation delay time to the base station; When described propagation delay time during, send data to be sent less than the minimal time delay threshold value; When described propagation delay time during, abandon data to be sent greater than the maximum delay threshold value; When described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent;
As seen, the present invention is by abandoning the to be sent data of propagation delay time greater than the maximum delay threshold value, and then alleviated the congestion phenomenon of network, and further reduced the propagation delay time of data in network, satisfies the demand of low time delay business.
In addition, abandon propagation delay time and can avoid the unnecessary data transmission, saved Internet resources greater than the data to be sent of maximum delay threshold value.
Description of drawings
Fig. 1 is the transmission schematic diagram of business datum in the prior art CDMA2000 1xEVDO Rev.A network system;
Fig. 2 is the flow chart of a kind of data processing method of the embodiment of the invention one announcement;
Fig. 3 is an embodiment of the invention probability packet loss method schematic diagram;
Fig. 4 is the structure chart of a kind of data processing equipment of the embodiment of the invention two announcements;
Fig. 5 is the flow chart of a kind of communication system of the embodiment of the invention three announcements.
Embodiment
The embodiment of the invention provides a kind of data processing method, device and system, when sending business datum, calculates transfer of data to be sent propagation delay time to receiving terminal; When described propagation delay time during less than the minimal time delay threshold value, the data that buffer memory is to be sent, when described propagation delay time during greater than the maximum delay threshold value, abandon data to be sent, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
By said method, can reduce the propagation delay time of business datum, satisfy the demand of low time delay business, save Internet resources.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Business data transmission with CDMA2000 1xEVDO Rev.A network system is an example, sees also Fig. 1, and Fig. 1 is the transmission schematic diagram of business datum in the prior art CDMA2000 1xEVDO Rev.A network system.In the present embodiment, transmit the real time data bag that BSC issues by BSC coffret plate.See also Fig. 2, Fig. 2 is the flow chart of a kind of data processing method of the embodiment of the invention one announcement, and this method specifically may further comprise the steps:
Step 201:BSC (Base Station Controller, base station controller) coffret plate receives the real time data bag that BSC sends;
Step 202:BSC coffret plate calculates the propagation delay time that the real time data bag that receives is transferred to BTS (BaseStation Transceiver, base transceiver station);
Wherein, the propagation delay time that the real time data bag that the calculating of BSC coffret plate receives is transferred to BTS mainly is divided into two parts, a part is the propagation delay time of packet in BSC coffret plate, here represent this part time with Delay A, the length of buffer queue in the propagation delay time in the Delay A=BSC coffret plate=BSC coffret plate/BSC coffret plate sends the speed of data; Another part is the propagation delay time of eating dishes without rice or wine, and represents this part time with Delay B here, when adopting non-special line transmission bearer ABIS link, because the time delay of this type of link changes greatly, therefore, can utilize the IPPM method to calculate chain-circuit time delay.Specific implementation method at present embodiment is: BSC constantly sends the PM bag to BTS, after BTS receives the PM bag, in this PM bag, insert the time that receives this PM bag, and will insert the PM bag of time and return to BSC again, BSC according to the time in the PM bag count forward direction and back to propagation delay time.When adopting special line transmission bearer ABIS link,, therefore, can utilize fixing chain-circuit time delay of direct estimation because the time delay of this type of link is a fixing constant basically.
Whether step 203:BSC coffret plate judges the propagation delay time of this real time data bag less than the minimal time delay threshold value, if, enter step 204, if not, enter step 205;
Wherein, the minimal time delay threshold value of real time data bag is the time delay value that the transmission requirement of business datum is set in advance according to telecommunication service, for example, China Telecom requires BSC to be no more than 20ms to the time delay that BTS sends a VOIP bag, so, for VOIP (Voice Over IP, the speech that transmits on the IP network) bag, the minimal time delay threshold value is the value less than 20ms, according to simulation result, for the VOIP bag, the minimal time delay threshold value can be 18ms.
Step 204:BSC coffret plate deposits this real time data bag in the buffer queue in and waits for and being sent out;
Wherein, when the propagation delay time of judging this real time data bag during less than the minimal time delay threshold value, think that this real time data bag can be transferred to BTS in official hour, therefore, this real time data bag deposited in the buffer queue wait for and being sent out, after this real time data bag is sent to BTS, turn back to step 201, continue to receive the next real time data bag that BSC sends, till all packets have been transmitted.
Whether step 205:BSC coffret plate judges the propagation delay time of this real time data bag greater than the maximum delay threshold value, if, enter step 206, if not, enter step 207;
Wherein, the maximum delay threshold value of real time data bag is the time delay value that the transmission requirement of business datum is set in advance according to telecommunication service, for example, China Telecom requires BSC to be no more than 20ms to the time delay that BTS sends a VOIP bag, so, for VOIP (Voice Over IP, the speech that transmits on the IP network) bag, the maximum delay threshold value is the value greater than 20ms, according to simulation result, for the VOIP bag, the maximum delay threshold value can be 22ms.
Step 206: abandon this real time data bag;
Wherein, when the estimation propagation delay time of judging this real time data bag during greater than the maximum delay threshold value, think that this real time data bag can not be transferred to BTS in official hour, therefore, this real time data bag is abandoned, and turn back to step 201, continue to receive the next real time data bag that BSC sends, till all packets have been transmitted.
Step 207:BSC coffret plate utilizes probability packet loss method to handle this real time data bag, process ends.
Wherein, when the propagation delay time of judging this real time data bag is between minimal time delay threshold value and maximum delay threshold value, illustrate that this real time data bag still can satisfy the delay requirement of regulation at present reluctantly, but the ABIS link has the congested trend that takes place, when the ABIS link takes place when congested, the time delay of the real time data bag that transmits in this real time data bag back will become greatly, so BSC coffret plate will adopt the mode of probability packet loss to alleviate the pressure of ABIS link.See also Fig. 3, Fig. 3 is the method schematic diagram of probability packet loss, the concrete method of this probability packet loss is: BSC coffret plate generates one less than 1 random normal number, here use Random (1) to represent that this is less than 1 random normal number, calculate the drop probabilities P of this real time data bag then, wherein, P=(Delay Total-minimum threshold)/(max-thresholds-minimum threshold), the size that compares drop probabilities P and random number R andom (1), as Random (1) during greater than P, it is very big to think that congested trend takes place the ABIS link, then BSC coffret plate deposits this real time data bag in buffer queue, after this real time data bag is sent to BTS, turn back to step 201, as Random (1) during less than P, it is very little to think that congested trend takes place the ABIS link, can ignore, then BSC coffret plate will abandon this real time data bag, turn back to step 201.
Should be pointed out that the embodiment of the invention is not limited to the coffret plate and handles to sent business datum, also can be a kind of data transmission device carry out buffer memory to all data to be sent sends or abandons.
Corresponding with above-mentioned a kind of data processing method, the embodiment of the invention also provides a kind of data processing equipment.See also Fig. 4, Fig. 4 is the structure chart of a kind of data processing equipment of the invention process two announcements, and this device comprises propagation delay time computing unit 401, decision package 402, data transmission unit 403 and data discarding unit 404.Operation principle below in conjunction with this device is further introduced its internal structure and annexation.
Propagation delay time computing unit 401 is used to calculate transfer of data to be sent propagation delay time to receiving terminal;
Described decision package 402, when being used for the propagation delay time value calculated when described propagation delay time computing unit less than the minimal time delay threshold value, trigger described transmitting element, when described propagation delay time greater than the maximum delay threshold value, trigger described discarding unit, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
Described transmitting element 403 is used to send described data to be sent;
Described discarding unit 404 is used to abandon described data to be sent.
Wherein, propagation delay time computing unit 401 further comprises first computing unit and second computing unit, and described first computing unit is used for the propagation delay time of calculated data on transmission equipment; Described second computing unit is used for the propagation delay time that calculated data is being eated dishes without rice or wine.
Described 402 probability packet loss method is specially:
The propagation delay time that described propagation delay time computing unit calculates is calculated according to formula P=(estimation propagation delay time-minimal time delay threshold value)/(maximum delay threshold value-minimal time delay threshold value), obtained the drop probabilities of described business datum, wherein, P is a drop probabilities;
More described drop probabilities and the size less than 1 positive number that generates at random when described drop probabilities during less than described random normal number, trigger described transmitting element; When described drop probabilities during, trigger described discarding unit greater than described random normal number.
The embodiment of the invention also provides a kind of communication system.See also Fig. 5, Fig. 5 is the structure chart of a kind of communication system of disclosing of the invention process three, and this communication system comprises base station controller 501, but is connected with communication mode with base station 502, wherein,
The data transmission method for uplink that the embodiment of the invention provides, device and communication system can have been alleviated the congestion phenomenon of network, and have further reduced the propagation delay time of data in network, satisfy the demand of low time delay business.
In addition, abandon propagation delay time and can avoid the unnecessary data transmission, saved Internet resources greater than the data to be sent of maximum delay threshold value.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, and this program comprises the steps: to calculate transfer of data to be sent propagation delay time to receiving terminal; When described propagation delay time during less than the minimal time delay threshold value, send data to be sent, when described propagation delay time during greater than the maximum delay threshold value, abandon data to be sent, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 kind of data processing method is characterized in that, comprising:
Calculate transfer of data to be sent propagation delay time to receiving terminal;
When described propagation delay time during, send data to be sent less than the minimal time delay threshold value; When described propagation delay time during, abandon data to be sent greater than the maximum delay threshold value; When described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
2, method according to claim 1 is characterized in that, described calculating transfer of data to be sent arrives the propagation delay time of receiving terminal, comprising:
The propagation delay time of calculated data on transmission equipment and the propagation delay time of eating dishes without rice or wine, summation obtain transfer of data to be sent propagation delay time to receiving terminal.
3, method according to claim 2 is characterized in that, the propagation delay time on the described transmission equipment is the merchant of transmission equipment buffer queue length and transmission rate.
4, method according to claim 2 is characterized in that, described propagation delay time of eating dishes without rice or wine is determined by the time of reception that receiving terminal feeds back to transmitting terminal.
5, method according to claim 2 is characterized in that, described propagation delay time of eating dishes without rice or wine is the fixed delay value of an estimation.
6, method according to claim 1 is characterized in that, described employing probability packet loss method is handled data to be sent, comprising:
The described propagation delay time that calculates is calculated according to formula P=(estimation propagation delay time-minimal time delay threshold value)/(maximum delay threshold value-minimal time delay threshold value), obtained the drop probabilities of described business datum, wherein, P is a drop probabilities;
More described drop probabilities and size less than 1 random normal number when described drop probabilities during less than described random normal number, send described data to be sent; When described drop probabilities during, abandon described data to be sent greater than described random normal number.
7, a kind of data processing equipment comprises propagation delay time computing unit, decision package, data transmission unit, data discarding unit, it is characterized in that,
Described propagation delay time computing unit is used to calculate transfer of data to be sent propagation delay time to receiving terminal;
Described decision package, when being used for the propagation delay time value calculated when described propagation delay time computing unit less than the minimal time delay threshold value, trigger described transmitting element, when described propagation delay time greater than the maximum delay threshold value, trigger described discarding unit, when described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
Described transmitting element is used to send described data to be sent;
Described discarding unit is used to abandon described data to be sent.
8, data processing equipment according to claim 7 is characterized in that, described propagation delay time computing unit further comprises first computing unit and second computing unit, wherein,
Described first computing unit is used for the propagation delay time of calculated data on transmission equipment;
Described second computing unit is used for the propagation delay time that calculated data is being eated dishes without rice or wine.
9, data processing equipment according to claim 7 is characterized in that, described decision package adopts probability packet loss method processing data to be sent further to be:
The propagation delay time that described propagation delay time computing unit calculates is calculated according to formula P=(estimation propagation delay time-minimal time delay threshold value)/(maximum delay threshold value-minimal time delay threshold value), obtained the drop probabilities of described business datum, wherein, P is a drop probabilities;
More described drop probabilities and size less than 1 random normal number when described drop probabilities during less than described random normal number, trigger described transmitting element; When described drop probabilities during, trigger described discarding unit greater than described random normal number.
10, a kind of communication system comprises base station controller, but is connected with communication mode with the base station, it is characterized in that,
Described base station controller is used to calculate transfer of data to be sent propagation delay time to the base station; When described propagation delay time during, send data to be sent less than the minimal time delay threshold value; When described propagation delay time during, abandon data to be sent greater than the maximum delay threshold value; When described propagation delay time is between minimal time delay threshold value and maximum delay threshold value, adopt probability packet loss method to handle data to be sent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810207505XA CN101483883B (en) | 2008-12-17 | 2008-12-17 | Data processing method, apparatus and communication system |
| PCT/CN2009/075404 WO2010069234A1 (en) | 2008-12-17 | 2009-12-08 | Data processing method, apparatus and communication system |
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| CN200810207505XA CN101483883B (en) | 2008-12-17 | 2008-12-17 | Data processing method, apparatus and communication system |
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| CN101483883A true CN101483883A (en) | 2009-07-15 |
| CN101483883B CN101483883B (en) | 2011-09-14 |
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| WO (1) | WO2010069234A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010069234A1 (en) * | 2008-12-17 | 2010-06-24 | 华为技术有限公司 | Data processing method, apparatus and communication system |
| CN103857052A (en) * | 2012-11-28 | 2014-06-11 | 华为技术有限公司 | Wireless scheduling method, device and base station guaranteeing time delay service quality |
| CN106302232A (en) * | 2015-05-25 | 2017-01-04 | 深圳市中兴微电子技术有限公司 | A kind of buffer memory management method and local device |
| CN106454553A (en) * | 2016-11-15 | 2017-02-22 | 深圳市视维科技有限公司 | A precise time delay live video network transmission control method |
| CN107248960A (en) * | 2017-06-21 | 2017-10-13 | 深圳市盛路物联通讯技术有限公司 | A kind of Internet of Things data method for controlling reporting and forward node based on transmission duration |
| CN107979507A (en) * | 2017-11-21 | 2018-05-01 | 广州视源电子科技股份有限公司 | A kind of data transmission method, device, equipment and storage medium |
| CN108259364A (en) * | 2016-12-29 | 2018-07-06 | 中国移动通信集团浙江有限公司 | A kind of network congestion determines method and device |
| WO2018214110A1 (en) * | 2017-05-25 | 2018-11-29 | 深圳市伊特利网络科技有限公司 | Link selection method and system based on access point |
| CN110493298A (en) * | 2018-05-15 | 2019-11-22 | 优酷网络技术（北京）有限公司 | Information synchronization method and device |
| CN110637443A (en) * | 2019-08-19 | 2019-12-31 | 北京小米移动软件有限公司 | Data processing method and device, electronic equipment and computer readable storage medium |
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| JP3644503B2 (en) * | 2002-10-01 | 2005-04-27 | 日本電気株式会社 | Wireless terminal and end-to-end delay control method and program |
| ATE418254T1 (en) * | 2002-12-23 | 2009-01-15 | Alcatel Lucent | OVERLOAD CONTROL IN AN OPTICAL NETWORK WITH BURST SWITCHING |
| CN100377535C (en) * | 2004-07-22 | 2008-03-26 | 华为技术有限公司 | Dynamic elastic packet ring network monitoring method |
| KR100881925B1 (en) * | 2006-01-16 | 2009-02-04 | 삼성전자주식회사 | Apparatus and method for scheduling of downlink voip packets in mobile communication base station system |
| WO2008142736A1 (en) * | 2007-05-21 | 2008-11-27 | Fujitsu Limited | Relay device and relay method |
| CN101483883B (en) * | 2008-12-17 | 2011-09-14 | 上海华为技术有限公司 | Data processing method, apparatus and communication system |
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- 2008-12-17 CN CN200810207505XA patent/CN101483883B/en not_active Expired - Fee Related
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- 2009-12-08 WO PCT/CN2009/075404 patent/WO2010069234A1/en active Application Filing
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| CN110637443A (en) * | 2019-08-19 | 2019-12-31 | 北京小米移动软件有限公司 | Data processing method and device, electronic equipment and computer readable storage medium |
| CN110637443B (en) * | 2019-08-19 | 2023-09-29 | 北京小米移动软件有限公司 | Data processing method and device, electronic equipment and computer readable storage medium |
| US11949574B2 (en) | 2019-08-19 | 2024-04-02 | Beijing Xiaomi Mobile Software Co., Ltd. | Data processing method and apparatus, electronic device and computer-readable storage medium |
| CN113993162A (en) * | 2020-12-23 | 2022-01-28 | 技象科技(浙江)有限公司 | Multi-rate mode data transmission control method and device based on cache data |
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| Publication number | Publication date |
|---|---|
| CN101483883B (en) | 2011-09-14 |
| WO2010069234A1 (en) | 2010-06-24 |
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