CN103139838B - Data transmission method under multi-user binding - Google Patents
Data transmission method under multi-user binding Download PDFInfo
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- CN103139838B CN103139838B CN201110393719.2A CN201110393719A CN103139838B CN 103139838 B CN103139838 B CN 103139838B CN 201110393719 A CN201110393719 A CN 201110393719A CN 103139838 B CN103139838 B CN 103139838B
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Abstract
The invention provides the data transmission method under a kind of multi-user binding, comprising: in predetermined period, for each user in described multi-user, add up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold; According to the current period average delivery time for described each user, within next cycle, in proportion to described each user's distributing data.Application the present invention, can improve resource utilization, improves overall throughput.
Description
Technical field
The present invention relates to the communication technology, the data transmission method particularly under a kind of multi-user binding.
Background technology
In LCRTDD system, generally single terminal can only be operated in a frequency simultaneously, and this is limited to single carrier throughput with regard to making the maximum throughput of single user.For solving the problem, there is multi-user binding technology, wherein, an application layer terminal uses multiple single carrier data cards, every data cards is as the independent upload and download data of user, carry out data splitting and merging at IP layer, strengthen application layer data throughput, thus 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, 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, be described in detail multi-user binding technology, system schematic as shown in Figure 1.
But in above-mentioned multi-user binding technology, packet dynamically can not carry out the selection of bearing link, but in units of TCP/UDP stream, do static binding with bearing link or carry out 1: 1 according to data packet number and distribute.When the bearing capacity of different link is variant, or during the mass flow discrepancy weighing apparatus of different TCP flow, the link congestion being easy to cause, the imbalance of all the other link idle, resource cannot make full use of, and impacts total throughout.
Summary of the invention
The invention provides the data transmission method under a kind of multi-user binding, can the level of resources utilization be improved.
For achieving the above object, the present invention adopts following technical scheme:
A data transmission method under multi-user binding, comprising:
In predetermined period, for each user in described multi-user, add up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold;
According to the current period average delivery time for described each user, within next cycle, in proportion to described each user's distributing data.
Preferably, add up described average delivery time in predetermined period after, in proportion to before each user's distributing data, the method comprises further:
Filtering is carried out to the described average delivery time added up in predetermined period, determines that 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 be default be less than or equal to 1 value;
Described in proportion to each user's distributing data time, carry out according to the filtered average delivery time of each user's current period.
Preferably, for arbitrary user, if the data packet number participating in statistics in the cycle is 0, then respective cycle is added up the average delivery time obtained and be set to default value.
Preferably, described packet is rlc layer packet.
Preferably, packet is IP layer data bag.
A data transmission device under multi-user binding, comprising: statistic unit and packet delivery unit;
Described statistic unit, in predetermined period, for each user in described multi-user, adds up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold, and statistics is reported described packet delivery unit;
Described packet delivery unit, for according to the current period average delivery time for described each user, within next cycle, in proportion to described each user's distributing data.
Preferably, this device comprises filter unit further, is placed between described statistic unit and described packet delivery unit;
Described filter unit, average delivery time for each user added up by described statistic unit carries out filtering, determines that 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 be default be less than or equal to 1 value; Filter result is sent to described packet delivery unit;
Described packet delivery unit, time 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, in the technology that the present invention binds multi-user, to each user be bundled in together, in the packet that each user of periodic statistics transmits, be greater than the average delivery time of all packets of pre-determined threshold; Then, then according to the average delivery time of each user of current period statistics, within next cycle, in proportion to each user's distributing data.The transmission quality of respective link is determined, then, according to this transmission quality by the statistics of above-mentioned average delivery time, to respective link distributing data, thus can according to the mass change of different link, the data traffic of each link of dynamic conditioning, to make full use of link circuit resource, improve overall throughput.
Accompanying drawing explanation
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 is respectively the field testing result schematic diagram of the existing method of application 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 object of the present invention, technological means and advantage clearly understand, 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, is the quality condition of the different links of same application terminal service together according to being bundled in, the data traffic of each bar link of dynamic conditioning.
Fig. 2 is the data transmission method schematic flow sheet in the present invention under multi-user binding, and as shown in Figure 2, the method comprises:
Step 201, in predetermined period, for each user in the multi-user be bundled in together, adds up data packet length in the packet of this user transmission and is greater than the average delivery time of all packets of pre-determined threshold.
Adopt the mode of the propagation delay time of statistics IP layer or rlc layer packet, assess the quality condition of different link, specifically can measure the packet transmission time of each user within the scope of certain hour, utilize this transmission time to characterize the quality of respective link.
The cycle of presetting can sets itself as required.When the average delivery time of statistical data packet, for the bag that length is very little, there is no need to count, therefore, only need to calculate average delivery time according to larger packet.Particularly, can arrange the thresholding of the data package size participating in statistics as required, average delivery time data packet length being exceeded all packets of this thresholding is added up.
In extreme circumstances, if link-quality is poor especially, may occur that the whole cycle does not all have the enough large packet of Successful transmissions, for ensureing the correct application of the inventive method, for arbitrary user, when the quantity participating in the packet added up in one-period is 0, a larger default value is set to by adding up the average delivery time obtained in respective cycle, specifically default value can be set to be more than or equal to measurement period, such as 400ms, be used for representing that the bearing capacity of respective link is poor.
Consider the saltus step that statistics may occur, preferably, filtering can be carried out to the average delivery time that step 201 counts by step 202, to prevent saltus step.
Step 202, the average delivery time added up within arbitrary cycle for each user carries out filtering, determines filtered average delivery time.
Concrete filtering mode can be: the average delivery time * (1-filter factor) after the average delivery time * filter factor before current period filtered average delivery time=current period filtering+upper periodical filtering; Wherein, filter factor be default be less than or equal to 1 value, can arrange as required.Filter factor is larger, and the real-time of average delivery time is stronger.
Step 203, according to the average delivery time of the current period of each user, within next cycle, in proportion to each user's distributing data.
In this step, each user is gathered at the average delivery time of current period.Then, within next cycle, according to the average delivery time of each user that current period gathers, in proportion to each user's distributing data.Wherein, average delivery time is longer, illustrates that link-quality is poorer, and the data volume of distributing to this user is less.Such as, the average delivery time of two users is respectively 100ms and 200ms, then the distribution ratio of these two users is 2: 1.
In addition, in actual applications, if processing method comprises the filtering operation of step 202, then 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, then in this step, during distributing data, the average delivery time of institute's foundation is that current period adds up the average delivery time obtained, the average delivery time namely before filtering.
So far, the data transmission method flow process in the present invention terminates.By the way, can according to the mass change situation of different link, the data traffic ratio of each link is mail in dynamic adjustment, resource can be fully utilized, thus improve overall throughput.
Apply above-mentioned existing method and the inventive method carries out the field testing effect of transfer of data as shown in Figure 3.This test be download scene (uploading similar), wherein fall hole be the situation that the quality simulating a carrier wave sharply worsens.Wherein, Fig. 3 a is the design sketch carrying out transfer of data according to existing mode, after a carrier wave is deteriorated, still gives out a contract for a project by 1: 1, then have impact on whole upper-layer service; Fig. 3 b is the design sketch carrying out transfer of data according to the inventive method, can find out that the inventive method can be made a response rapidly, sharply reduce and mail to the packet of poor carrier wave, the TCP avoiding this carrier-quality to decline causing is congested, thus have impact on the throughput of another carrier wave.After algorithm adjustment, another carrier wave throughput is unaffected.
In addition, the present invention gives the data transmission device for realizing said method.As shown in Figure 4, the most basically, this device comprises statistic unit and packet delivery unit.Wherein, statistic unit, in predetermined period, for each user in multi-user, adds up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold, and statistics is reported described packet delivery unit; Packet delivery unit, for according to the current period average delivery time for each user, within next cycle, in proportion to each user's distributing data.
As described in above-mentioned data transmission method of the present invention, consider and the saltus step that statistics may occur preferably, in data transmission device, may further include filter unit, as shown in Figure 5, this filter unit is placed between statistic unit and described packet delivery unit.Concrete, filter unit, average delivery time for each user added up by statistic unit carries out filtering, determines that 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 be default be less than or equal to 1 value; Filter result is sent to described packet delivery unit.After adding filter unit, packet delivery unit, time 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 provided 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 statistics subelement and the filtering subelement of each user, lay respectively in each user, for adding up the data packets time of each user self, and carry out filtering, then, filter result is reported to packet delivery unit respectively.Packet delivery unit can be arranged in arbitrary user, such as, can be arranged in primary user, and it is according to the filter result of each reporting of user, to each user's distributing data.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. the data transmission method under multi-user binding, is characterized in that, the method comprises:
In predetermined period, for each user in described multi-user, add up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold;
Filtering is carried out to the described average delivery time added up in predetermined period, determines that 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 be default be less than or equal to 1 value;
According to the current period average delivery time for described each user, within next cycle, according to the filtered average delivery time of each user's current period to described each user's distributing data.
2. method according to claim 1, is characterized in that, for arbitrary user, if the data packet number participating in statistics in the cycle is 0, then respective cycle is added up the average delivery time obtained and is set to default value.
3. method according to claim 1, described packet is rlc layer packet.
4. method according to claim 2, described packet is rlc layer packet.
5. method according to claim 1, described packet is IP layer data bag.
6. method according to claim 2, described packet is IP layer data bag.
7. the data transmission device under multi-user binding, is characterized in that, this device comprises: statistic unit, filter unit and packet delivery unit;
Described statistic unit, in predetermined period, for each user in described multi-user, adds up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold, and statistics is reported described packet delivery unit;
Described filter unit, average delivery time for each user added up by described statistic unit carries out filtering, determines that 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 be default be less than or equal to 1 value; Filter result is sent to described packet delivery unit;
Described packet delivery unit, for the current period average delivery time of basis for described each user, within next cycle, the filtered average delivery time of each user's current period sent according to described filter unit is to described each user's distributing data.
8. device according to claim 7, is characterized in that, described statistic unit comprises N number of statistics subelement further, lays respectively in each user; Described N is the number of users of multi-user;
Each statistics subelement, in predetermined period, for the user at its place, adds up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold, and reports described packet delivery unit.
9. device according to claim 7, is characterized in that, described statistic unit comprises N number of statistics subelement further, lays respectively in each user; Described filter unit comprises N number of filtering subelement further, lays respectively in each user; Described N is the number of users of multi-user;
Each statistics subelement, in predetermined period, for the user at its place, adds up the average delivery time that this user data packet length is greater than all packets of pre-determined threshold, and is transferred to the filtering subelement being positioned at same subscriber;
Each filtering subelement, the average delivery time for each user added up by described statistic unit carries out filtering, filter result is sent to described packet delivery unit.
10., according to described device arbitrary in claim 7 to 9, it is characterized in that, 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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