CN1984068A - Method and device for controlling data flow - Google Patents
Method and device for controlling data flow Download PDFInfo
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- CN1984068A CN1984068A CNA2006100828597A CN200610082859A CN1984068A CN 1984068 A CN1984068 A CN 1984068A CN A2006100828597 A CNA2006100828597 A CN A2006100828597A CN 200610082859 A CN200610082859 A CN 200610082859A CN 1984068 A CN1984068 A CN 1984068A
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Abstract
The invention provides a method of data flow and control devices, belongs to telecommunications field. The method comprises: the base station measure the effective data transmission rate, convert empty efficiency to IUB interface bandwidth demand; the base station regulate the ascending load threshold according to comparison results of the IUB interface bandwidth demand and actual IUB interface bandwidth, so that the bandwidth empty data match the demand that the IUB interface is less than that of IUB. From the technology program of the invention, we can see that the invention adjust the data flow value according to regulating period, ensure a timely adjustment through the settings of regulating period, prevent the long time congestion situation; ensure the stability and high efficiency of data transmission through the dynamical adjustment to data flow value; slow change the data flow value through their own distribution of smaller regulating step length, reduce the impact to port cache.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of data flow control method and device.
Background technology
The WCDMA system high-speed ascending bag data access technology (HSUPA that 3GPP organizes to set up, High Speed Uplink Packet Data Access) be a kind of transmitting uplink data enhancement techniques, it need use the short frame technique of compound re-transmission (HARQ), base station (NodeB) fast dispatch technology and up 2ms to realize.This technology can increase substantially the throughput of uplink user data, and the peak rate of eating dishes without rice or wine is up to 5.76Mbps, and has also improved the up-link capacity of system significantly.
Because the ascending idle port speed of subscriber equipment (UE) is increased dramatically, up IUB interface flow demand also so corresponding thereupon increase, in this case, the bandwidth of the last IUB interface of NodeB has become the bottleneck of system for restricting data transmission performance.
HSUPA technology in the WCDMA system does not relate to the above entity of Radio Link control (RLC) layer in the WCDMA system, but medium access control (MAC) entity and physical layer channel in system, have been increased newly, the protocol model of data transmission procedure as shown in Figure 1, carry out transfer of data between subscriber equipment (UE) and base station (NodeB) by eating dishes without rice or wine, the base station is transferred to radio network controller (RNC) with data by the IUB interface again, so that carry out follow-up transfer of data and processing, wherein eat dishes without rice or wine to be the uu mouth between UE and NodeB, and the IUB interface is between NodeB and the RNC.
There is the congested indication frame of a kind of RNC side transport network layer (TNL Congestion Indication) feedback technique aspect the congestion problems in solving transfer of data at present.
The congested indication frame of TNL feedback technique mainly regularly detects by radio network controller (RNC) side and comprises transmission of Information layer data transmission performance indicators such as packet time-delay, packet loss, judge whether to take place by described index testing result congested, when finding that carrying out relieve congestion after congested handles.
This method has preestablished and has triggered the condition that sends the congested indication frame of transport network layer, triggers to send the indication frame to NodeB after RNC detects system to meet preset triggering conditions.
TNL Congestion Indication is sent to NodeB by RNC, adopts the cycle binding events to trigger, and comprises in the congested indication frame of described TNL:
Whether congestion condition is described (Congestion Status Description) field: be used to indicate transmission network congested;
The span of this field (Value range) comprises following several situation:
0: transport network layer congested (No TNL congestion) does not take place in expression;
1: the reserved value (Reserved for future use) that expression remains to be expanded;
2: expression is by the transport network layer congested (TNL Congestion-detected bydelay build-up) that postpones to trigger;
3: the transport network layer congested (TNL Congestion-detected byframe loss) that expression is triggered by packet loss;
The length of field of this field (Field length) is: 2bits;
Based on above-mentioned span, when the state of the TNL Congestion indication report of receiving as NodeB was designated as 2 or 3, NodeB need reduce the data traffic on the media access control flow of this report correspondence; When the state of receiving report is designated as 0, then NodeB is by normal running.
Because the indication of the state of prior art is only represented by one-bit digital that its state information that can reflect is less relatively, can not realize IUB interface data flow is monitored in real time and in time adjusted.And prior art can only take place to monitor when congested congested at the IUB interface, can not just begin to adjust when the not congested but performance of IUB interface begins to descend, and can not prevent the decline of IUB interface capability.Therefore, the prior art existence is controlled fuzzy and is controlled problems such as untimely.
Summary of the invention
The purpose of this invention is to provide a kind of data flow control method and device, be used for the data flow is in time adjusted, realize the transfer of data of stability and high efficiency.
The objective of the invention is to be achieved through the following technical solutions:
A kind of data flow control method comprises:
A, the base station measurement effective speed of data of eating dishes without rice or wine, and will have and eat dishes without rice or wine to imitate rate transition and be the bandwidth demand to the IUB interface;
B, base station adjust the ascending load thresholding of base station according to the comparative result to the actual bandwidth of the bandwidth demand of IUB interface and IUB interface, realization makes the data of eating dishes without rice or wine be complementary to the bandwidth demand of IUB interface and the actual bandwidth of IUB interface to the control of the data traffic of eating dishes without rice or wine.
The effective speed of the data of eating dishes without rice or wine in the described steps A is the effective speed of eating dishes without rice or wine of non-re-transmission.
Described step B comprises:
B1, if the data that received of IUB interface to the bandwidth demand of IUB interface greater than IUB interface actual bandwidth, the IUB interface occurs congested, then reduces the ascending load thresholding of base station according to the step-length that sets in advance, and reduces the message transmission rate of eating dishes without rice or wine;
B2, if the data that the IUB interface receives to the bandwidth requirement of IUB interface less than IUB interface actual bandwidth, then increase the ascending load thresholding of base station according to the step-length that sets in advance, improve the message transmission rate of eating dishes without rice or wine.
Described method also comprises:
By adjusting the described step-length control load threshold variation amplitude that sets in advance.
Described step B also comprises:
B3, if the data that the IUB interface receives to the bandwidth requirement of IUB interface less than IUB interface actual bandwidth, but the bandwidth requirement of IUB interface and the gap between the actual bandwidth be during less than a predefined value, then the base station does not increase the ascending load thresholding.
A kind of data traffic control device comprises:
The flow detection module is used to measure the effective speed of the data that send of eating dishes without rice or wine, and this effective speed is converted to bandwidth demand to the IUB interface;
Flow-control module is used for data are compared the bandwidth demand of IUB interface and the actual bandwidth of IUB interface, according to the ascending load thresholding of comparative result adjustment base station, realizes the control to the data traffic of eating dishes without rice or wine.
Described flow detection module comprises:
The effective speed detection sub-module is used to detect the non-re-transmission effective speed of the data that send of eating dishes without rice or wine;
Flow conversion submodule is used for detected effective speed is converted to corresponding bandwidth demand to the IUB interface.
Described flow-control module comprises:
Comparison sub-module, the magnitude relationship of data to the actual bandwidth of the bandwidth demand of IUB interface and IUB interface is used for relatively eating dishes without rice or wine;
Flow is adjusted submodule, is used for the bandwidth demand of IUB interface is being reduced base station ascending load thresholding during greater than the actual bandwidth of IUB interface, and the speed of eating dishes without rice or wine to send data is descended; The bandwidth demand of IUB interface is being increased the ascending load thresholding during less than the actual bandwidth of IUB interface, the speed of eating dishes without rice or wine to send data is descended.
As seen from the above technical solution provided by the invention, the present invention adjusts the data flow according to adjustment cycle, by the promptness that can guarantee being provided with of adjustment cycle to adjust, prevents the long situation of congestion time and occurs; The stable and efficient of transfer of data guaranteed in the dynamic adjustment of data flow; Realize that by disposing less adjustment step-length voluntarily data traffic becomes slowly, reduce impact buffer to ports.
Description of drawings
Figure 1 shows that the protocol model schematic diagram of prior art;
Figure 2 shows that the embodiment of the invention one data traffic control schematic diagram;
Figure 3 shows that the device schematic diagram of the embodiment of the invention two.
Embodiment
Core of the present invention is to be compared by the traffic demand and the IUB interface actual bandwidth of base station to the IUB interface, and by the cycle ascending load thresholding is adjusted according to comparative result, make the traffic demand and the IUB interface bandwidth coupling of eating dishes without rice or wine to send, prevent that blocking from appearring in the reportedly defeated too fast IUB of the causing interface of factor, and realize effective speed transmission data with the best.
More specifically say, the present invention is by periodically adjusting the ascending load thresholding of base station, the subscriber equipment (UE) that has a linear relationship with the ascending load thresholding speed of eating dishes without rice or wine is controlled, prevent because the too high IUB interface congestion that causes of message transmission rate of eating dishes without rice or wine, and do not occur under the congested prerequisite guaranteeing, make subscriber equipment eat dishes without rice or wine efficiently to utilize existing bandwidth for transmission data, realize efficient, the stable transfer of data.
The present invention at first needs the speed of eating dishes without rice or wine of subscriber equipment is measured in force, the follow-up a series of control adjustment processes at the speed of eating dishes without rice or wine of beginning after the speed of effectively being eated dishes without rice or wine.
Measurement to the speed of eating dishes without rice or wine is undertaken by base station (NodeB), and the rate transition of effectively eating dishes without rice or wine that the base station will record is the demand of IUB interface to transmission bandwidth, and the bandwidth that the IUB interface takies need satisfy this bandwidth demand, and that this IUB interface can not taken place is congested.
When the IUB interface bandwidth of needs transmission data during less than the actual bandwidth that takies of IUB interface, in order effectively to utilize the bandwidth resources of IUB interface, also need to improve the message transmission rate that subscriber equipment is eated dishes without rice or wine, allow more data prevent the waste of IUB interface band width resource by the transmission of IUB interface.
That is to say, eat dishes without rice or wine to send data with the most rational effective speed to NodeB all the time that need among the present invention the effective speed of eating dishes without rice or wine is dynamically adjusted, concrete adjustment scheme is as follows in order to guarantee subscriber equipment:
The IUB interface bandwidth demand that NodeB will be obtained by the rate transition of eating dishes without rice or wine immediately according to pre-set time interval (promptly with predetermined cycle) and the bandwidth of IUB interface reality compare, the bandwidth that is higher than the IUB interface when bandwidth demand, then reduce the message transmission rate of eating dishes without rice or wine, make through adjusted IUB interface bandwidth demand to be lower than the actual bandwidth of (or not being higher than) IUB interface, so that remove congested;
When data traffic is lower than the actual bandwidth of IUB interface to the bandwidth demand of IUB interface, then improve the message transmission rate of eating dishes without rice or wine, make through the data of eating dishes without rice or wine the demand of bandwidth near the IUB interface bandwidth, so that make full use of the bandwidth resources of IUB interface.
By above periodic dynamically adjustment, the present invention realizes the reasonable control to the data flow, realizes high speed, the stable transfer of data.
Below in conjunction with accompanying drawing the specific embodiment of the present invention being elaborated, is that example describes specific implementation of the present invention with two embodiment specifically.
Embodiment one
This embodiment one for the process of carrying out data traffic control that provides as shown in Figure 2, promptly by the base station in the network (NodeB) hold to eat dishes without rice or wine and the IUB interface between the control of data traffic manage, its specific implementation handling process is as follows:
The eat dishes without rice or wine effective speed of transfer of data of step 1, NodeB measurement, described effective speed is non-data retransmission effective speed.
When step 2, NodeB will this non-re-transmission effective speed be converted to the data of eating dishes without rice or wine to be sent and arrive NodeB NodeB is gone up the bandwidth demand of IUB interface.
The actual bandwidth that step 3, NodeB will transmit required IUB interface bandwidth of data and IUB interface compares, and according to comparative result the ascending load thresholding is carried out periodicity adjustment, makes the data traffic of eating dishes without rice or wine be no more than IUB interface actual transmissions ability.
If transmit the required IUB interface bandwidth of data greater than IUB interface actual bandwidth, the data congestion situation will appear on the IUB interface, this moment, NodeB reduced the ascending load thresholding of base station according to pre-set step-length, the message transmission rate of eating dishes without rice or wine of subscriber equipment descends thereupon, the final required IUB interface bandwidth of transmission data that reduces, make its actual bandwidth that is not more than the IUB interface, avoid occurring data congestion.
If transmit the required IUB interface bandwidth of data much smaller than IUB interface actual bandwidth, the IUB interface data congestion can not occur, but owing to need data quantity transmitted less, the IUB interface is understood some bandwidth and is not utilized, this moment, NodeB improved the ascending load thresholding of base station according to pre-set step-length, the message transmission rate of eating dishes without rice or wine of subscriber equipment is risen thereupon, make full use of the actual bandwidth transmission data of IUB interface.
If the required IUB interface bandwidth of transmission data requires less than IUB interface actual bandwidth, but the bandwidth requirement of IUB interface and the gap between the actual bandwidth are during less than a predefined value, then the base station does not increase the ascending load thresholding, can make the actual bandwidth that the bandwidth requirement of IUB interface is surpassed the IUB interface after preventing to increase the ascending load thresholding, it is congested to cause that the IUB interface occurs.
In the embodiment of the invention one, need come from subscriber equipment through the data of IUB interface transmission, this customer equipment data needs again to transfer to radio network controller by the IUB interface between base station and radio network controller through the base station of eating dishes without rice or wine to enter between subscriber equipment and base station.The present invention realizes adjustment to the data traffic of being eated dishes without rice or wine to send by subscriber equipment by the up total load of adjusting the base station, and the adjustment control by the data traffic of eating dishes without rice or wine to send specifically comprises to subscriber equipment accordingly:
NodeB sends absolute grant instruction (AG) and relative authorization instruction (RG) by using the scheduling feature that strengthens medium access controls (MAC-e) to subscriber equipment (UE), indicates the power ratio (Edpdch/Dpcch) of the enhancing Dedicated Physical Data Channel and the enhancing Dedicated Physical Control Channel of maximum available in next Transmission Time Interval (TTI) for subscriber equipment.Along with the increase of Edpdch/Dpcch power ratio, the bigger enhancing transformat (ETfci) that UE can select.By the mandate of AG, RG, NodeB has realized the eat dishes without rice or wine quick control of speed to UE.
NodeB periodically measures the total reception bandwidth power (RTWP, Received TotalWide band Power) of self, and RTWP is converted to the uplink real-time load of NodeB.
If the uplink real-time load is lower than the pre-configured ascending load thresholding of system, then the rising (Up) of NodeB in the corresponding transmission absolute grant of subscriber equipment instruction (AG) and relative authorization instruction (RG) instructed, with the lifting speed of eating dishes without rice or wine;
If the uplink real-time load is lower than the pre-configured ascending load thresholding of system, then NodeB correspondingly sends reduction (Down) order of RG, with the reduction speed of eating dishes without rice or wine.
The amplitude of the embodiment of the invention one step-length of using when increasing or reduce the ascending load thresholding is adjustable, for example, can be by the change slowly that less value realizes load-threshold be set for step-length, the fluctuation of speed thereby minimizing is eated dishes without rice or wine is to obtain steady I UB interface data transmission performance.
The present invention is not a maximum with the ascending load threshold setting when initial the adjustment, for adjusting headspace up or down in the specific implementation process usually.
Embodiment two
The specific implementation of a kind of data traffic control device that this embodiment provides specifically comprises following processing module as shown in Figure 3:
The flow detection module is used to measure the effective speed of the data that send of eating dishes without rice or wine, and this effective speed is converted to bandwidth demand to the IUB interface;
Flow-control module is used for data are carried out periodicity relatively to the bandwidth demand of IUB interface and the bandwidth of IUB interface, adjusts base station ascending load thresholding according to comparative result, realizes the control to the data traffic of eating dishes without rice or wine.
Described flow detection module comprises:
The effective speed detection sub-module is used to detect the non-re-transmission effective speed of the data that send of eating dishes without rice or wine;
Flow conversion submodule is used for detected effective speed is converted to bandwidth demand to the IUB interface.
Described flow-control module comprises:
Comparison sub-module, the magnitude relationship of data to the bandwidth demand and the IUB interface bandwidth of IUB interface is used for relatively eating dishes without rice or wine;
Flow is adjusted submodule, is used for the bandwidth demand of IUB interface is being reduced base station ascending load thresholding during greater than IUB interface actual bandwidth, and the speed of eating dishes without rice or wine to send data is descended; The bandwidth demand of IUB interface is being increased the ascending load thresholding during less than the IUB actual bandwidth, the speed of eating dishes without rice or wine to send data is descended.
In the data traffic control device of the embodiment of the invention two, by the flow detection module needs are detected through IUB interface data flow transmitted amount, draw required IUB interface bandwidth by data traffic; Actual bandwidth by flow-control module IUB interface bandwidth that above-mentioned transmission data are required and IUB interface carries out periodicity relatively, so that the actual bandwidth according to the IUB interface is constantly adjusted the data traffic from subscriber equipment, make the actual transmissions ability that not to exceed the IUB interface through the data of IUB interface transmission.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1, a kind of data flow control method is characterized in that, comprising:
A, the base station measurement effective speed of transfer of data of eating dishes without rice or wine, and will have and eat dishes without rice or wine to imitate rate transition and be the bandwidth demand to the IUB interface;
B, base station adjust the ascending load thresholding of base station according to the comparative result to the actual bandwidth of the bandwidth demand of IUB interface and IUB interface, realization makes the data of eating dishes without rice or wine be complementary to the bandwidth demand of IUB interface and the actual bandwidth of IUB interface to the control of the data traffic of eating dishes without rice or wine.
2, a kind of data flow control method according to claim 1 is characterized in that, the effective speed of the data of eating dishes without rice or wine in the described steps A is the effective speed of eating dishes without rice or wine of non-data retransmission.
3, a kind of data flow control method according to claim 1 is characterized in that, described step B comprises:
B1, if the data that received of IUB interface to the bandwidth demand of IUB interface greater than IUB interface actual bandwidth, the IUB interface occurs congested, then reduces the ascending load thresholding of base station according to the step-length that sets in advance, and reduces the message transmission rate of eating dishes without rice or wine;
B2, if the data that the IUB interface receives to the bandwidth requirement of IUB interface less than IUB interface actual bandwidth, then increase the ascending load thresholding of base station according to the step-length that sets in advance, improve the message transmission rate of eating dishes without rice or wine.
4, a kind of data flow control method according to claim 3 is characterized in that, described method also comprises:
By adjusting the described step-length control load threshold variation amplitude that sets in advance.
5, according to claim 1,2,3 or 4 described a kind of data flow control methods, it is characterized in that described step B also comprises:
B3, if the data that the IUB interface receives to the bandwidth requirement of IUB interface less than IUB interface actual bandwidth, but the bandwidth requirement of IUB interface and the gap between the actual bandwidth be during less than a predefined value, then the base station does not increase the ascending load thresholding.
6, a kind of data traffic control device is characterized in that, comprising:
The flow detection module is used to measure the effective speed of the data that send of eating dishes without rice or wine, and this effective speed is converted to bandwidth demand to the IUB interface;
Flow-control module is used for data are compared the bandwidth demand of IUB interface and the actual bandwidth of IUB interface, according to the ascending load thresholding of comparative result adjustment base station, realizes the control to the data traffic of eating dishes without rice or wine.
7, a kind of data traffic control device according to claim 6 is characterized in that, described flow detection module comprises:
The effective speed detection sub-module is used to detect the non-re-transmission effective speed of the data that send of eating dishes without rice or wine;
Flow conversion submodule is used for detected effective speed is converted to corresponding bandwidth demand to the IUB interface.
8, according to claim 6 or 7 described a kind of data traffic control device, it is characterized in that described flow-control module comprises:
Comparison sub-module, the magnitude relationship of data to the actual bandwidth of the bandwidth demand of IUB interface and IUB interface is used for relatively eating dishes without rice or wine;
Flow is adjusted submodule, is used for the bandwidth demand of IUB interface is being reduced base station ascending load thresholding during greater than the actual bandwidth of IUB interface, and the speed of eating dishes without rice or wine to send data is descended; The bandwidth demand of IUB interface is being increased the ascending load thresholding during less than the actual bandwidth of IUB interface, the speed of eating dishes without rice or wine to send data is descended.
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| CNB2006100828597A CN100527710C (en) | 2006-06-15 | 2006-06-15 | Method and device for controlling data flow |
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| CNB2006100828597A CN100527710C (en) | 2006-06-15 | 2006-06-15 | Method and device for controlling data flow |
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| CN103973407B (en) * | 2014-05-28 | 2017-08-11 | 北京经纬恒润科技有限公司 | The message transmission rate matching process and device of remote data transmission system |
| CN108391289A (en) * | 2018-05-31 | 2018-08-10 | 京信通信系统（中国）有限公司 | A kind of jamming control method and base station |
| CN112637882A (en) * | 2020-12-29 | 2021-04-09 | 京信网络系统股份有限公司 | Base station rate detection and repair method, base station and equipment |
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