CN103139838A - Data transmission method under multi-user binding - Google Patents
Data transmission method under multi-user binding Download PDFInfo
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- CN103139838A CN103139838A CN2011103937192A CN201110393719A CN103139838A CN 103139838 A CN103139838 A CN 103139838A CN 2011103937192 A CN2011103937192 A CN 2011103937192A CN 201110393719 A CN201110393719 A CN 201110393719A CN 103139838 A CN103139838 A CN 103139838A
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Abstract
The invention provides a data transmission method under multi-user binding. The data transmission method comprises that in a preset cycle, aiming at each user of multiple users, average transmission time when the length of a user data package is larger than that of all data packages of a preset threshold; and according to current cycle average transmission time aiming at each user, in the next cycle, data is distributed to each user according to proportion. According to the data transmission method under multi-user binding, resource using rate can be improved, and overall handling capacity can be improved.
Description
Technical field
The present invention relates to the communication technology, particularly the data transmission method under a kind of multi-user binding.
Background technology
In LCR TDD system, generally single terminal can only be operated in a frequency simultaneously, and this is subject to the single carrier throughput with regard to the maximum throughput that makes alone family.For addressing the above problem, the multi-user binding technology has appearred, wherein, an application layer terminal is used many single carrier data cards, every data cards is as the independent upload and download data of user, carry out data splitting and merging at the IP layer, strengthen the application layer data throughput, thereby promote up, downstream rate.Wherein the user of first access is main UE, and all the other are all auxiliary UE.Specifically about the technology of multi-user binding, the applicant has proposed that application number is 201010270513.6, name is called the application for a patent for invention of " wireless data downlink transmission method, uplink receiving method and radio network controller ", wherein, the multi-user binding technology is described in detail, and system schematic as shown in Figure 1.
But in above-mentioned multi-user binding technology, packet can dynamically not carry out the selection of bearing link, but take TCP/UDP stream as unit, does static binding or carry out distribution in 1: 1 according to data packet number with bearing link.When the bearing capacity of different links variant, perhaps during the mass flow discrepancy weighing apparatus of different TCP stream, the link congestion that is easy to cause, the imbalance of all the other link idle, resource can't take full advantage of, and total throughout is impacted.
Summary of the invention
The invention provides the data transmission method under a kind of multi-user binding, can improve the level of resources utilization.
For achieving the above object, the present invention adopts following technical scheme:
Data transmission method under a kind of multi-user binding comprises:
In predetermined period, for each user in described multi-user, add up this user data packet length greater than the average delivery time of all packets of default thresholding;
According to for the average delivery time of described each user's current period, within next cycle, in proportion to described each user's distributing data.
Preferably, after the described average delivery time of statistics, before each user's distributing data, the method further comprises in proportion in predetermined period:
The described average delivery time of adding up in predetermined period is carried out filtering, determine that the filtered average delivery time is: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtering+upper periodical filtering; Wherein, filter factor for default less than or equal to 1 value;
Described during in proportion to each user's distributing data, the average delivery time filtered according to each user's current period carries out.
Preferably, for arbitrary user, be 0 if participate in the data packet number of statistics in the cycle, average delivery time of obtaining of respective cycle statistics is set to default value.
Preferably, described packet is the rlc layer packet.
Preferably, packet is IP layer data bag.
Data transmission device under a kind of multi-user binding comprises: statistic unit and packet delivery unit;
Described statistic unit is used in predetermined period, for each user in described multi-user, adds up this user data packet length greater than the average delivery time of all packets of default thresholding, and statistics is reported described packet delivery unit;
Described packet delivery unit is used for basis for the average delivery time of described each user's current period, within next cycle, in proportion to described each user's distributing data.
Preferably, this device further comprises filter unit, is placed between described statistic unit and described packet delivery unit;
Described filter unit, be used for each user's of described statistic unit statistics the average delivery time is carried out filtering, determine that the filtered average delivery time is: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtering+upper periodical filtering; Wherein, filter factor for default less than or equal to 1 value; The filtering result is sent to described packet delivery unit;
Described packet delivery unit during in proportion to each user's distributing data, carries out according to the filtered average delivery time of each user's current period that described filter unit sends.
As seen from the above technical solution, the present invention in the technology of multi-user binding, to being bundled in each user together, in the packet that each user of periodic statistics transmits greater than average delivery time of all packets of default thresholding; Then, then according to average delivery time of each user of current period statistics, within next cycle, in proportion to each user's distributing data.Determine the transmission quality of respective link by the statistics of above-mentioned average delivery time, then, according to this transmission quality, to the respective link distributing data, thereby can according to the mass change of different links, dynamically adjust the data traffic of each link, to take full advantage of link circuit resource, improve overall throughput.
Description of drawings
Fig. 1 is the schematic diagram of existing multi-user binding technology;
Fig. 2 is the schematic flow sheet of data transmission method in the present invention;
Fig. 3 a and Fig. 3 b are respectively the field testing result schematic diagram of using existing method and the inventive method;
Fig. 4 is the structural representation one of data transmission device in the present invention;
Fig. 5 is the structural representation two of data transmission device in the present invention.
Embodiment
For making purpose of the present invention, technological means and advantage clearer, below in conjunction with accompanying drawing, the present invention is described in further details.
Basic thought of the present invention is: in multi-user's binding, according to the quality condition that is bundled in the different links that are together the service of same application terminal, dynamically adjust the data traffic of each link.
Fig. 2 is the data transmission method schematic flow sheet under multi-user binding in the present invention, and as shown in Figure 2, the method comprises:
Step 201 in predetermined period, for each user in the multi-user who is bundled in together, is added up in the packet of this user transmission data packet length greater than the average delivery time of all packets of default thresholding.
Adopt the mode of the propagation delay time of statistics IP layer or rlc layer packet, assess the quality condition of different links, specifically can measure the data packet transmission time of each user in the certain hour scope, utilize this transmission time to characterize the quality of respective link.
The default cycle can set up on their own as required.When the average delivery time of statistical data packet, for the very little bag of length, there is no need to count, therefore, only need to calculate according to larger packet the average delivery time.Particularly, the thresholding of the data package size that participates in statistics can be set as required, the average delivery time that data packet length is surpassed all packets of this thresholding is added up.
Under extreme case, if link-quality is poor especially, the whole cycle may occur does not all have successfully enough large packets of transmission, for guaranteeing the correct application of the inventive method, for arbitrary user, when the quantity that participates in the packet of statistics in one-period is 0, the average delivery time that in respective cycle, statistics obtains is set to a larger default value, specifically can be set to more than or equal to measurement period by default value, for example 400ms, be used for representing that the bearing capacity of respective link is relatively poor.
Consider the saltus step that statistics may occur, preferred, can carry out filtering by step 202 to the average delivery time that step 201 counts, to prevent saltus step.
Step 202, the average delivery time of adding up within arbitrary cycle for each user is carried out filtering, determines the filtered average delivery time.
Concrete filtering mode can be the average delivery time * (1-filter factor) after the average delivery time * filter factor before filtered average delivery time of: current period=current period filtering+upper periodical filtering; Wherein, filter factor, can arrange less than or equal to 1 value as required for default.Filter factor is larger, and the real-time of average delivery time is stronger.
Step 203 is according to the average delivery time of each user's current period, within next cycle, in proportion to each user's distributing data.
In this step, each user was gathered in the average delivery time of current period.Then, within next cycle, each user's who gathers according to current period the average delivery time is in proportion to each user's distributing data.Wherein, the average delivery time is longer, illustrates that link-quality is poorer, and is less to the data volume of this user's distribution.For example, two users' the average delivery time is respectively 100ms and 200ms, and these two users' distribution ratio is 2: 1.
In addition, in actual applications, if processing method comprises the filtering operation of step 202, in this step, during distributing data, the average delivery time of institute's foundation is the filtered average delivery time of current period; If processing method does not comprise the filtering operation of step 202, in this step, during distributing data, the average delivery time of institute's foundation is the average delivery time that the current period statistics obtains, i.e. the average delivery time before filtering.
So far, the data transmission method flow process in the present invention finishes.By the way, can be according to the mass change situation of different links, the dynamic data traffic ratio that mails to each link of adjusting makes resource to be fully utilized, thereby has promoted overall throughput.
Use field testing effect that above-mentioned existing method and the inventive method carry out transfer of data as shown in Figure 3.This test is to download scene (uploading similar), and the hole of falling wherein is to have simulated the situation that the quality of a carrier wave sharply worsens.Wherein, Fig. 3 a, still gave out a contract for a project by 1: 1 after a carrier wave variation for carry out the design sketch of transfer of data according to existing mode, had affected whole upper-layer service; Fig. 3 b is for carrying out the design sketch of transfer of data according to the inventive method, can find out that the inventive method can make a response rapidly, sharply reduce the packet that mails to relatively poor carrier wave, the TCP that avoids this carrier-quality decline to cause is congested, thereby has affected the throughput of another carrier wave.After the algorithm adjustment, another carrier wave throughput is unaffected.
In addition, the present invention gives be used to the data transmission device of realizing said method.As shown in Figure 4, the most basically, this device comprises statistic unit and packet delivery unit.Wherein, statistic unit is used in predetermined period, for each user in the multi-user, adds up this user data packet length greater than the average delivery time of all packets of default thresholding, and statistics is reported described packet delivery unit; The packet delivery unit is used for basis for the average delivery time of each user's current period, within next cycle, in proportion to each user's distributing data.
As described in above-mentioned data transmission method of the present invention, consider the saltus step that statistics may occur, preferred, may further include filter unit in data transmission device, as shown in Figure 5, this filter unit is placed between statistic unit and described packet delivery unit.Concrete, filter unit, be used for each user's of statistic unit statistics the average delivery time is carried out filtering, determine that the filtered average delivery time is: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtering+upper periodical filtering; Wherein, filter factor for default less than or equal to 1 value; The filtering result is sent to described packet delivery unit.After adding filter unit, the packet delivery unit during in proportion to each user's distributing data, carries out according to the filtered average delivery time of each user's current period that filter unit sends.
The concrete structure figure of the data transmission device that provides in the above-mentioned the present invention of being.In actual applications, statistic unit in data transmission device and filter unit can be divided into each user's statistics subelement and filtering subelement, lay respectively in each user, the packet delivery time that is used for statistics each user self, and carry out filtering, then, the filtering result is reported to respectively the packet delivery unit.The packet delivery unit can be arranged in arbitrary user, for example can be arranged in the primary user, and it is according to the filtering result of each reporting of user, to each user's distributing data.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (12)
1. the data transmission method under a multi-user binding, is characterized in that, the method comprises:
In predetermined period, for each user in described multi-user, add up this user data packet length greater than the average delivery time of all packets of default thresholding;
According to for the average delivery time of described each user's current period, within next cycle, in proportion to described each user's distributing data.
2. method according to claim 1, is characterized in that, after the described average delivery time of statistics, before each user's distributing data, the method further comprises in proportion in predetermined period:
The described average delivery time of adding up in predetermined period is carried out filtering, determine that the filtered average delivery time is: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtering+upper periodical filtering; Wherein, filter factor for default less than or equal to 1 value;
Described during in proportion to each user's distributing data, the average delivery time filtered according to each user's current period carries out.
3. method according to claim 1 and 2, is characterized in that, for arbitrary user, is 0 if participate in the data packet number of statistics in the cycle, and average delivery time of obtaining of respective cycle statistics is set to default value.
4. method according to claim 1 and 2, described packet is the rlc layer packet.
5. method according to claim 3, described packet is the rlc layer packet.
6. method according to claim 1 and 2, described packet is IP layer data bag.
7. method according to claim 3, described packet is IP layer data bag.
8. the data transmission device under a multi-user binding, is characterized in that, this device comprises: statistic unit and packet delivery unit;
Described statistic unit is used in predetermined period, for each user in described multi-user, adds up this user data packet length greater than the average delivery time of all packets of default thresholding, and statistics is reported described packet delivery unit;
Described packet delivery unit is used for basis for the average delivery time of described each user's current period, within next cycle, in proportion to described each user's distributing data.
9. device according to claim 8, is characterized in that, this device further comprises filter unit, is placed between described statistic unit and described packet delivery unit;
Described filter unit, be used for each user's of described statistic unit statistics the average delivery time is carried out filtering, determine that the filtered average delivery time is: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtering+upper periodical filtering; Wherein, filter factor for default less than or equal to 1 value; The filtering result is sent to described packet delivery unit;
Described packet delivery unit during in proportion to each user's distributing data, carries out according to the filtered average delivery time of each user's current period that described filter unit sends.
10. device according to claim 8, is characterized in that, described statistic unit further comprises N statistics subelement, lays respectively in each user; Described N is multi-user's number of users;
Each adds up subelement, is used in predetermined period, for the user at its place, adds up this user data packet length greater than the average delivery time of all packets of default thresholding, and reports described packet delivery unit.
11. device according to claim 9 is characterized in that, described statistic unit further comprises N statistics subelement, lays respectively in each user; Described filter unit further comprises N filtering subelement, lays respectively in each user; Described N is multi-user's number of users;
Each adds up subelement, is used in predetermined period, for the user at its place, adds up this user data packet length greater than the average delivery time of all packets of default thresholding, and is transferred to the filtering subelement that is positioned at same subscriber;
Each filtering subelement is used for each user's of described statistic unit statistics the average delivery time is carried out filtering, and the filtering result is sent to described packet delivery unit.
12. arbitrary described device in 11, is characterized in that according to claim 8, described packet delivery unit is arranged in arbitrary user.
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| CN201110393719.2A CN103139838B (en) | 2011-12-01 | 2011-12-01 | Data transmission method under multi-user binding |
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| CN201110393719.2A CN103139838B (en) | 2011-12-01 | 2011-12-01 | Data transmission method under multi-user binding |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346198A (en) * | 2000-09-30 | 2002-04-24 | 华为技术有限公司 | Anti-loss treating method for IP speech sound data package |
| CN101364855A (en) * | 2008-09-22 | 2009-02-11 | 杭州华三通信技术有限公司 | Data packet transmission control method and apparatus in code stream |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346198A (en) * | 2000-09-30 | 2002-04-24 | 华为技术有限公司 | Anti-loss treating method for IP speech sound data package |
| CN101364855A (en) * | 2008-09-22 | 2009-02-11 | 杭州华三通信技术有限公司 | Data packet transmission control method and apparatus in code stream |
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