CN1787684A - Method for dynamic regulating resource based on group service - Google Patents
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- CN1787684A CN1787684A CN 200410098420 CN200410098420A CN1787684A CN 1787684 A CN1787684 A CN 1787684A CN 200410098420 CN200410098420 CN 200410098420 CN 200410098420 A CN200410098420 A CN 200410098420A CN 1787684 A CN1787684 A CN 1787684A
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Abstract
This invention discloses a method for dynamically regulating resources based on grouping service. In the distribution of radio resources used by grouping service, it does not only consider the volume of the transmitted grouping service but also combines the QoS of the service to determine the transmission rate necessary for the service to distribute the resources so as to avoid things that the transmission rate applied by the service fall short of QoS attribute requirement and the rate is between the ensured rate stipulated by QoS and the maximum transmission rate to increase the usability of radio resources.
Description
Technical field
The relevant communications field of the present invention relates to dynamically adjust based on Packet Service the method for resource or rather, relates in particular to a kind of method of dynamically adjusting resource based on the non real-time Packet Service.
Background technology
Four kinds of types of service in 3G communication system (3-G (Generation Three mobile communication system)), have been defined: conversation class, stream class, mutual and background business.Wherein, interactive class and background business are non-real-time Packet Services.It not only has non real-time (non-real time) characteristics, but also has sudden characteristics.
Described sudden characteristics are meant that the transmission rate of grouping busihess data can change usually in transmission course, such as: its transmission rate of grouping busihess data may be by hundreds of Kbps (kilobits per second) vanishing rapidly.Therefore, requiring grouping busihess data employed Radio Resource when wave point transmits in each conversation procedure also should be dynamic change, to improve utilization ratio of wireless resources.
In the prior art, the method for dynamically adjusting resource based on Packet Service mainly comprises following two kinds:
The resource adjustment is based on system loading and dispatches in the first method.When the base station receives the grouping busihess data of UE (user terminal) transmission, if it is congested that the load of this sub-district occurs, then reach the effect of the downward modulation of non real-time resource that Packet Service uses by the transmission rate of downward modulation grouping busihess data, if after the load of this sub-district is normal, recover predefined transmission rate with distributing corresponding system resources.
In above-mentioned first method, the base station preestablishes a transmission rate to grouping busihess data in each conversation procedure, and by described transmission rate allocation resource.Have only after the load appearance of this sub-district is congested and just reduce described transmission rate, to reach the purpose of the resource of reducing the Packet Service use.In fact, in conversation procedure, be not easy to take place the congested situation of cell load usually, therefore can't reach the purpose of rationally utilizing Radio Resource at said method.
For this reason, prior art has proposed second method again: the traffic carrying capacity according to Packet Service is adjusted Radio Resource.Such as: when base station and UE set up link, system (as RNC) allocated the transmission of resource in order to grouping busihess data in advance.When traffic carrying capacity greater than a predefined threshold value, then system increases and to transmit employed Radio Resource in order to this grouping busihess data, when traffic carrying capacity less than a predefined threshold value, then system reduces in order to the employed Radio Resource of this Packet Service.
Transmit employed resource though above-mentioned second method can dynamically be adjusted described Packet Service according to the size of the traffic carrying capacity of Packet Service, in the process of adjusting resource, and reckon without the requirement of professional QoS (service quality) own.Comprise professional attribute among the professional QoS, as the peak transfer rate K2 and the assurance speed K4 of business transmission.Described assurance speed K4 is the speed K4 that passes at the low most that is used to transmit grouping busihess data.Such as: the Radio Resource after the rise can adapt to the transmission rate K1 of maximum grouping busihess data, but the peak transfer rate of this professional quality of service requirement is K2.If K2＜K1 then causes the consequence of waste of radio resources.For another example: the Radio Resource after the downward modulation can adapt to the transmission rate K3 of minimum packets business datum, but the speed that guarantees of the quality of service requirement that this is professional is K4, suppose K4＞K3, then cause to carry out the invalid consequence of grouping busihess data of grouping busihess data transmission or transmission easily, and then can't use Radio Resource after the downward modulation, equally also cause the consequence of waste of radio resources.
Summary of the invention
The invention provides a kind of method of dynamically adjusting resource based on Packet Service, dynamically adjust in the process of resource based on the size of Packet Service traffic carrying capacity to solve in the prior art, do not consider the requirement of the QoS of Packet Service, cause the technology consequence of adjusted waste of radio resources thus.
For addressing the above problem, the invention discloses and a kind ofly dynamically adjust the method for resource based on Packet Service, comprising:
(1) when user terminal and network side are set up communication link, the network side basis is provided with the traffic carrying capacity rank in order to the capacity of the buffer of buffered packet business datum, the corresponding transmission rate of each traffic carrying capacity rank, each transmission rate is between desired assurance speed of QoS of survice attribute and peak transfer rate;
(2) by measuring the traffic carrying capacity of current transmission channel, obtain current average traffic;
(3) network side is determined the traffic carrying capacity rank at described Packet Service place according to described average traffic, and then obtains corresponding transmission rate, and with the transmission rate of described transmission rate as current use, with distributing radio resource.
The corresponding transmission rate of each traffic carrying capacity rank of step (1) is specially:
Be divided into some speed ranges between described assurance speed and described peak transfer rate, and set up described speed range and described traffic carrying capacity rank concerns one to one, the number of described speed range is identical with traffic carrying capacity rank number;
Determine a transmission rate in each speed range, described transmission rate is the not pairing transmission rate of described speed range corresponding service magnitude.
When guaranteeing that speed is default in the described QoS attribute, the described speed that guarantees is set to 0.
The measurement of traffic carrying capacity is a periodic measurement in the step (2), the described cycle be Transmission Time Interval TTI entire data doubly.
The measurement of traffic carrying capacity is to trigger measurement according to predefined incident in the step (2).
Step (3) further comprises:
When obtaining the transmission rate of described Packet Service, judge whether described transmission rate is identical with the service rate that current system adopts, if, then withdraw from, otherwise the service rate distributing radio resource that adopts as current system according to the transmission rate of new acquisition.
Also comprise: after the resource allocation success, system carries out the resource reconfiguration process.
Described Radio Resource comprises the code channel resource of physical layer, and described code channel resource comprises employed spreading code of Packet Service and code channel number.
Compared with prior art, the present invention has the following advantages: the present invention is in the employed allocation of radio resources process of Packet Service, not only consider the size of traffic carrying capacity of the Packet Service of transmission, but also determine the transmission rate that Packet Service need adopt, and carry out resource allocation based on this in conjunction with the QoS of Packet Service.The situation that the transmission rate of having avoided Packet Service to adopt does not thus meet QoS attribute specification takes place, the transmission rate that Packet Service adopts drops between the assurance speed and peak transfer rate of QoS attribute regulation, the grouping busihess data that then can not only make transmission effectively and can also guarantee that assigned radio resource do not waste and then improves utilization ratio of wireless resources.
Description of drawings
Fig. 1 the present invention is based on the flow chart that Packet Service is dynamically adjusted the method for resource.
Embodiment
Below in conjunction with the accompanying drawings, specify the present invention.
Dynamically adjusting based on Packet Service in the process of resource, the present invention combines with the QoS attribute of the size of the traffic carrying capacity of Packet Service transmission and Packet Service and carries out the dynamic adjustment of the employed Radio Resource of grouping busihess data.In fact, distributing radio resource mainly is a transmission rate of determining that Packet Service need adopt.Because each code channel institute can loaded service speed be definite in the Radio Resource, when the transmission rate of Packet Service is determined, can obtain the spreading code of code channel number distributed and use.If the transmission rate of the Packet Service that distributes can satisfy QoS attribute specification: the transmission rate that Packet Service adopted drops between the assurance speed and peak transfer rate of QoS attribute regulation, the grouping busihess data that then can not only make transmission effectively and can also guarantee that assigned radio resource do not waste and then improves utilization ratio of wireless resources.
See also Fig. 1, it is to the present invention is based on the flow chart that Packet Service is dynamically adjusted the method for resource.It may further comprise the steps:
S110: when user terminal (UE) and network side are set up communication link, the network side basis is provided with the traffic carrying capacity rank in order to the capacity of the buffer of buffered packet business datum, the corresponding transmission rate of each traffic carrying capacity rank, each transmission rate is between the assurance speed and peak transfer rate of QoS of survice attribute.
In wireless communication system, user terminal and network side all are provided with a buffer (buffer), and described buffer is in order to the buffered packet business datum, and its amount of capacity has reflected the traffic peak that sends grouping busihess data.Suppose that its capacity is Tn, then it can be divided into n interval, each interval corresponding traffic carrying capacity rank (seeing also table 1).
Table 1
| Traffic carrying capacity rank ordinal number | The traffic carrying capacity rank | The corresponding service interval |
| 1 | S1 | [0，t1] |
| 2 | S2 | (t1，t2) |
| 3 | S3 | (t2，t3) |
| ... | ... | ... |
| N | Sn | (t(n-1)，tn) |
Wherein, t1, t2, t3 ... .., tn represent the boundary between the dividing regions of traffic carrying capacity, and tn represents the greatest limit of traffic carrying capacity.The greatest limit tn of ordinary business practice amount is configured to receive the heap(ed) capacity Tn of buffer.But also not limited thereto, the tn that is provided with is smaller or equal to Tn usually.According to top division, the traffic carrying capacity that measures must drop in some traffic carrying capacitys interval, thereby each average traffic measurement can correspond to a traffic carrying capacity rank Si, i=1 ...., n.
According to other number of traffic carrying capacity level the transmission rate of the grouping busihess data transmission of corresponding number, the corresponding transmission rate of each traffic carrying capacity rank are set.Each transmission rate is between the assurance speed and peak transfer rate of QoS of survice attribute.Set up in the communication link process at UE and network side, in advance that this is the professional QoS attribute of transmitting terminal that sends grouping busihess data is sent to the RNC (radio network controller) of network side, carries out the adjustment of resource by RNC according to the QoS attribute.For up link, transmitting terminal is UE, and for down link, transmitting terminal is base station or RNC.At least the assurance speed (being minimum transmission rate) and the peak transfer rate that comprise this user Packet Service transmission this time needs in the described QoS attribute.If described assurance speed is default, it is zero that the described speed that guarantees then is set.
The transmission rate that network side (as RNC) can be provided with each traffic carrying capacity rank corresponding service data according to the assurance speed and the peak transfer rate of QoS attribute.As:
Be divided into some speed ranges between described assurance speed and described peak transfer rate, and set up described speed range and described traffic carrying capacity rank concerns one to one, the number of described speed range is identical with traffic carrying capacity rank number;
Determine a transmission rate in each speed range, described transmission rate is described speed range other corresponding transmission rate of traffic carrying capacity level one to one.
Network side also can directly distribute according to wireless resource information.Such as: each code channel institute can loaded service speed be K1, and total n code channel in the Radio Resource of the present invention, then
R1＝K1
R2＝2*K1
R3＝3*K1
...
Rn＝n*K1
Set up a service transmission rate R of each traffic carrying capacity rank S correspondence thus.
S120:, obtain average traffic by measuring the traffic carrying capacity of transmission channel;
S130: network side is determined the traffic carrying capacity rank of described Packet Service according to described average traffic, and then obtains the corresponding service transmission rate as the current business transmission rate, with distributing radio resource.
The measurement of average traffic can be periodic among the step S120, also can be the measurement of Event triggered.And the adjustment of the employed Radio Resource of Packet Service is adjusted corresponding to step S120 among the step S130.The described cycle can be to choose according to the requirement of system design and experience in design, is the integral multiple of Transmission Time Interval TTI such as sense cycle.For Event triggered is the measurement report that predefined a certain condition averages traffic carrying capacity when satisfying, and averages the measurement report of traffic carrying capacity when the stored packet business datum is greater than a certain threshold value in the buffer.
In step S130, earlier according to current average transmission rate look-up table 1, obtain the corresponding service rank, obtain corresponding transmission rate according to described business-level then, last, judge whether described transmission rate is identical with the transmission rate of system current employing, if, then withdraw from, otherwise described transmission rate is carried out the transmission of grouping busihess data as the transmission rate of the current employing of system, and according to new described transmission rate allocation Radio Resource.
When grouping busihess data before transmission not, the transmission rate that current employing can be set is zero.Adjust Radio Resource in the grouping busihess data transmission course, then the transmission rate of current employing is the transmission rate of current transmission grouping busihess data.
If in the time of need distributing suitable Radio Resource according to new transmission rate, need carry out reconfiguration course to described resource.Radio Resource comprises the code channel resource of physical layer.Described code channel resource comprises the spreading code and the code channel number of use.
Such as in the TD-SCDMA system, a basic Resource Unit is that spreading factor is 16 code channel, and each code channel can loaded service speed can calculate, a typical basic resource unit can loaded service speed be 8kbps, if a data service rate is defined as 32kbps, can be basic resource unit of 16 then for it distributes 4 spreading factors.Therefore, determined that professional speed just can distribute the respective wireless resource later.
Below just lift a specific embodiment the present invention be described.
Suppose traffic carrying capacity is divided into four traffic carrying capacity ranks.Here the measurement data to average traffic is provided with two thresholding Tmin and Tmax.Tmin represents the lower limit of an average traffic, and the business datum transmitted of indicating when traffic carrying capacity is lower than Tmin is very little, at this moment can to Packet Service distribute little or can be temporarily Resources allocation not; Tmax represents the upper limit of an average traffic, and when the traffic carrying capacity of transmission channel reached Tmax, the data that the expression user will be transmitted are soon overflowed buffer memory needed the enough Radio Resources of system assignment, in order to avoid data-bag lost.
The corresponding scope of business of traffic carrying capacity rank S1 is [0, Tmin];
The corresponding scope of business (Tmin, (Tmin+Tmax)/2) of traffic carrying capacity rank S2;
The corresponding scope of business of traffic carrying capacity rank S3 ((Tmin+Tmax)/2, Tmax);
The corresponding scope of business [Tmax, Tn] of traffic carrying capacity rank S4.
Corresponding top four traffic level, four that corresponding Packet Service is set are distributed speed, thereby by the Radio Resource of each grouping user of rate-allocation.As follows respectively:
R1＝Rmax/4
R2＝2Rmax /4
R3＝3Rmax/4
R4=Rmax wherein, Rmax is the peak transfer rate that requires in the QoS attribute.So, according to top traffic carrying capacity rank and speed rank, the traffic carrying capacity rank below setting up and corresponding speed rank corresponding relation: S1 → R1
S2→R2
S3→R3
S4→R4
By top corresponding relation, can find out size according to current group user transmission channel traffic carrying capacity and calculate and distribute to this user's data speed, just can distribute corresponding radio resource according to data rate.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, those skilled in the art can think variation all should drop in protection scope of the present invention.
Claims (9)
1, a kind ofly dynamically adjust the method for resource, it is characterized in that, comprising based on Packet Service:
(1) when user terminal and network side are set up communication link, the network side basis is provided with the traffic carrying capacity rank in order to the capacity of the buffer of buffered packet business datum, the corresponding transmission rate of each traffic carrying capacity rank, each transmission rate is between desired assurance speed of quality QoS attribute and peak transfer rate;
(2) by measuring the traffic carrying capacity of current transmission channel, obtain current average traffic;
(3) network side is determined the traffic carrying capacity rank at described Packet Service place according to described average traffic, and then obtains corresponding transmission rate, and with the transmission rate of described transmission rate as current use, with distributing radio resource.
2, as claimed in claim 1ly dynamically adjust the method for resource, it is characterized in that the corresponding transmission rate of each traffic carrying capacity rank of step (1) is specially based on Packet Service:
Be divided into some speed ranges between described assurance speed and described peak transfer rate, and set up described speed range and described traffic carrying capacity rank concerns one to one, the number of described speed range is identical with traffic carrying capacity rank number;
Determine a transmission rate in each speed range, described transmission rate is the not pairing transmission rate of described speed range corresponding service magnitude.
3, as claimed in claim 2ly dynamically adjust the method for resource, it is characterized in that when guaranteeing that speed is default in the described QoS attribute, the described speed that guarantees is set to 0 based on Packet Service.
4, as claimed in claim 1 or 2ly dynamically adjust the method for resource based on Packet Service, it is characterized in that the measurement of traffic carrying capacity is a periodic measurement in the step (2), the described cycle is the integral multiple of Transmission Time Interval TTI.
5, as claimed in claim 1 or 2ly dynamically adjust the method for resource, it is characterized in that the measurement of traffic carrying capacity is to trigger measurement according to predefined incident in the step (2) based on Packet Service.
6, as claimed in claim 4ly dynamically adjust the method for resource, it is characterized in that step (3) further comprises based on Packet Service:
When obtaining the transmission rate of described Packet Service, judge whether described transmission rate is identical with the service rate that current system adopts, if, then withdraw from, otherwise the service rate distributing radio resource that adopts as current system according to the transmission rate of new acquisition.
7, as claimed in claim 5ly dynamically adjust the method for resource, it is characterized in that step (3) further comprises based on Packet Service:
When obtaining the transmission rate of described Packet Service, judge whether described transmission rate is identical with the service rate that current system adopts, if, then withdraw from, otherwise the service rate distributing radio resource that adopts as current system according to the transmission rate of new acquisition.
8, as claimed in claim 1ly dynamically adjust the method for resource, it is characterized in that also comprise: after the resource allocation success, system carries out the resource reconfiguration process based on Packet Service.
9, as claimed in claim 1ly dynamically adjust the method for resource based on Packet Service, it is characterized in that described Radio Resource comprises the code channel resource of physical layer, described code channel resource comprises employed spreading code of Packet Service and code channel number.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101207417B (en) * | 2006-12-18 | 2012-05-23 | 中兴通讯股份有限公司 | Method for modulating up special channel speed |
| CN102759980A (en) * | 2011-04-29 | 2012-10-31 | 晨星软件研发(深圳)有限公司 | Multi-core electronic system and speed adjusting device thereof |
| WO2013178108A1 (en) * | 2012-08-16 | 2013-12-05 | 中兴通讯股份有限公司 | Rate control system and method based on wlan |
| CN103828424A (en) * | 2012-09-03 | 2014-05-28 | 华为技术有限公司 | Resource scheduling method, device and system |
| WO2014089765A1 (en) * | 2012-12-12 | 2014-06-19 | 华为技术有限公司 | Method, device and system for service scheduling and service transfer rate controlling |
| CN104168633A (en) * | 2009-01-09 | 2014-11-26 | 高通股份有限公司 | Power management for wireless networks |
| US9391862B2 (en) | 2011-06-15 | 2016-07-12 | Huawei Technologies Co., Ltd. | Method and apparatus for scheduling a service processing resource |
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| US5745480A (en) * | 1996-04-03 | 1998-04-28 | Adicom Wireless, Inc. | Multi-rate wireless communications system |
| US6636500B2 (en) * | 1999-07-27 | 2003-10-21 | Lucent Technologies Inc. | Medium allocation method |
| CN1148911C (en) * | 2001-06-27 | 2004-05-05 | 华为技术有限公司 | Speed control method by dynamic regulation of threshold for CDMA system |
| CA2392574A1 (en) * | 2002-07-08 | 2004-01-08 | Anthony Gerkis | System, apparatus and method for uplink resource allocation |
| KR20040096363A (en) * | 2003-05-09 | 2004-11-16 | 삼성전자주식회사 | Traffic Scheduling Apparatus and Method in Base Station of Wireless Communication System |
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| CN101207417B (en) * | 2006-12-18 | 2012-05-23 | 中兴通讯股份有限公司 | Method for modulating up special channel speed |
| US10980968B2 (en) | 2008-12-08 | 2021-04-20 | Scientia Vascular, Llc | Micro-cutting systems for forming cuts in products |
| CN104168633A (en) * | 2009-01-09 | 2014-11-26 | 高通股份有限公司 | Power management for wireless networks |
| CN104168633B (en) * | 2009-01-09 | 2019-02-22 | 高通股份有限公司 | The power management of wireless network |
| CN102759980A (en) * | 2011-04-29 | 2012-10-31 | 晨星软件研发(深圳)有限公司 | Multi-core electronic system and speed adjusting device thereof |
| US9391862B2 (en) | 2011-06-15 | 2016-07-12 | Huawei Technologies Co., Ltd. | Method and apparatus for scheduling a service processing resource |
| WO2013178108A1 (en) * | 2012-08-16 | 2013-12-05 | 中兴通讯股份有限公司 | Rate control system and method based on wlan |
| CN103828424A (en) * | 2012-09-03 | 2014-05-28 | 华为技术有限公司 | Resource scheduling method, device and system |
| US9839042B2 (en) | 2012-09-03 | 2017-12-05 | Huawei Technologies Co., Ltd. | Method, apparatus, and system for resource scheduling |
| WO2014089765A1 (en) * | 2012-12-12 | 2014-06-19 | 华为技术有限公司 | Method, device and system for service scheduling and service transfer rate controlling |
| CN114095056A (en) * | 2021-11-04 | 2022-02-25 | 深圳供电局有限公司 | Data transmission method, device, equipment and storage medium |
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