CN101635952B - Method and device for controlling congestion in mobile communication system - Google Patents
Method and device for controlling congestion in mobile communication system Download PDFInfo
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- CN101635952B CN101635952B CN2008101169308A CN200810116930A CN101635952B CN 101635952 B CN101635952 B CN 101635952B CN 2008101169308 A CN2008101169308 A CN 2008101169308A CN 200810116930 A CN200810116930 A CN 200810116930A CN 101635952 B CN101635952 B CN 101635952B
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Abstract
The invention discloses a method and a device for controlling congestion in a mobile communication system. The method comprises the following steps of: computing an air interface speed rate and a speed rate actually required by services; and if the time when the air interface speed rate is smaller than the speed rate actually required by services continues for a first preset time, carrying out the congestion control. By the device, the congestion caused when high-speed packets access the system can be accurately and effectively controlled.
Description
Technical field
The present invention relates to the radio resource management techniques in the moving communicating field, be specifically related to a kind of GSM congestion control method and device.
Background technology
Congested control is pith in the RRM, and it comprises processes such as congestion judging, congestion processing, congested recovery judgement and congested recovery processing.HSPA (High Speed Packet Acess, high-speed packet insert) technology is for the data service of supporting higher rate, lower time delay, higher throughput and the availability of frequency spectrum, propose the better covering of high data rate traffic.Carry under the situation that has GBR (Guarantee Bit Rate guarantees bit rate) business at HSPA, congestion judging is very necessary with handling accurately.
Existing congestion control policy mainly is to consider from the power angle; Be RNC (Radio NetworkController; What radio network controller) consider during congestion judging is up received signal power or down transmitting power; If power surpasses certain thresholding and continues a period of time, then think congested generation, thereby carry out corresponding congestion processing.Present congestion processing strategy mainly contains following several kinds:
1) upgrade through measurement control message and system information, the individual character that reduces this sub-district squints and the district reselecting mass shift, makes certain customers switch to neighbor cell, or gravity treatment is resident and make a call to other sub-districts, with alleviate congestion.
2) revise SIB (System Information Block, System information block) 3/4, insert with the user who stops different priority levels.For example: stop the domestic consumer of AC0～AC9 (Acess Class, access grade) to insert.Wherein, stop the user of which kind of AC grade can pass through the decision of O&M (Operation andManager, Operation and Maintenance) configuration parameter.
3) transmission rate of reduction non real-time and low priority traffice, the channel that the deletion low priority traffice takies discharges code channel and power resource.
The opposite process of then carrying out is handled in congested recovery judgement and congested recovery.
The HSPA system is owing to introduce the resource-sharing characteristic; Be employed in down direction and pass through ROT (Rise over Thermal Noise with the constant power emission or at up direction; The thermal noise lifting) therefore technology such as control received signal power etc. only takes into account that from the power angle capable congestion judging is irrational.
Summary of the invention
The present invention provides a kind of GSM congestion control method and device, to control congested in the HSPA system accurately and efficiently.
The present invention provides a kind of GSM congestion control method, comprising:
The eat dishes without rice or wine speed of transmission rate and professional actual needs of calculating;
If the said transmission rate of eating dishes without rice or wine is then carried out congested control less than lasting first scheduled time of the speed of said professional actual needs.
The present invention provides the device of the congested control of a kind of GSM, comprising:
First computing unit is used for calculating the transmission rate of eating dishes without rice or wine;
Second computing unit is used for the speed of computing service actual needs;
Congested control unit is used to judge when the said transmission rate of eating dishes without rice or wine continued for first scheduled time less than the speed of said professional actual needs, carries out congested control.
GSM congestion control method of the present invention and device; To characteristics congested in the HSPA system; Through the eat dishes without rice or wine speed of transmission rate and professional actual needs of calculating, the speed of more said eat dishes without rice or wine transmission rate and said professional actual needs is if the said transmission rate of eating dishes without rice or wine continued for first scheduled time less than the speed of said professional actual needs; Then carry out congested control, thereby control congested in the HSPA system accurately and efficiently.
Description of drawings
Fig. 1 is the realization flow figure of embodiment of the invention GSM congestion control method;
Fig. 2 is the structural representation of the device of the congested control of embodiment of the invention GSM;
Fig. 3 is the structural representation of first computing unit in the embodiment of the invention.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and execution mode.
Owing to congested in the HSPA system is meant owing to reasons such as the connecting system number of users is too much cause certain customers' (as being in Cell Edge User) to can not get scheduling for a long time; Thereby user rate decline or time delay occurring increases; Even buffer memory such as overflows at phenomenon; Cause QoS (Quality of Service, service quality) to be guaranteed.Therefore; To characteristics congested in the HSPA system, the present invention has introduced new congestion judging mechanism, and the bit rate (transmission rate of promptly eating dishes without rice or wine) and the speed of professional actual needs that being about to physical layer can provide compare; If in a period of time; The bit rate that physical layer can provide is less than the speed of professional actual needs, and then illustrative system is in congestion state, carries out congested control.If in a period of time, the bit rate that physical layer can provide is greater than the speed of professional actual needs, and then illustrative system is normal, carries out congested recovery.
As shown in Figure 1, be the realization flow of embodiment of the invention GSM congestion control method, mainly may further comprise the steps:
When transmission rate is eated dishes without rice or wine in calculating; The measuring amount " bit rate that HS-DSCH (HighSpeed Downlink Shared Channel; high-speed downlink shared channel) provides " that can report through the base station perhaps " bit rate that E-DCH (Enhanced Dedicated Channel strengthens dedicated channel) provides " obtains.Specific as follows:
(1) measuring amount that reports through the base station " bit rate that all kinds of business of HS-DSCH provide ", calculate by following formula:
(2) wherein, N is a guaranteed bit rate business and the number that the Business Stream of minimum-rate demand is arranged, HS_DSCHPriovidedBiteRate in the sub-district
iBe i guaranteed bit rate or the bit rate that the business of minimum-rate demand is arranged.Through the measuring amount " bit rate that all kinds of business of E-DCH provide " that the base station reports, calculate by following formula:
Wherein, N is the number of the professional Business Stream with minimum-rate demand business of guaranteed bit rate in the sub-district, E-DCHPriovidedBiteRate
iBe i guaranteed bit rate business or the bit rate that the business of minimum-rate demand is arranged.
Because channel condition and professional characteristics such as burst, Uu_rate possibly change, and therefore, can also handle Uu_rate through smooth mode, so that it is more accurate.Such as, can handle by following formula:
Uu_rate (n)=Uu_rate (n-1) * (1-f)+Uu_rate (n) * f (formula 3)
Wherein, f is a smoothing factor.
Certainly, the smoothing processing to Uu_rate in the embodiment of the invention is not limited to above-mentioned form, can also adopt other modes.
The speed of professional actual needs can adopt the assurance bit rate value with all users that GBR (assurance bit rate) demand is arranged in the system on average to obtain, and concrete formula is following:
Wherein, I is the user's of guaranteed bit rate demand in the system a number, GBR
iAssurance bit rate value for the user of the guaranteed bit rate demand of i in the system.
If it is except that the GBR business, also have other types business in the system, professional like WWW; Though see that from present agreement such business does not guarantee the bit rate demand; But consider from operation angle and user experience, possibly also have minimum-rate value: MinR, in this case; The speed of the professional actual needs that can also obtain aforementioned calculation is revised, so that it is more accurate.Concrete formula is following:
Wherein, J is that Installed System Memory is at the professional number of the non-GBR of minimum-rate demand, MinR
jBe j the professional minimum-rate value of non-GBR that the minimum-rate demand is arranged.
Through above-mentioned steps 101, calculated the rate N eeded_rate of eat dishes without rice or wine transmission rate Uu_rate and professional actual needs, in order not make adjusting frequency of congested control too high; Influence system effectiveness; Can pass through relatively Uu_rate and Needed_rate, and set a timer, if Uu_rate continues the regular hour less than Needed_rate; I.e. first scheduled time, then carry out congested control.
Promptly pick up counting when the Uu_rate device that picks up counting during less than Needed_rate, if timer surpassed for first scheduled time, Uu_rate thinks then that still less than Needed_rate system gets into congestion state, begins to carry out congested control.
Certainly; The embodiment of the invention is not limited to above-mentioned this manner of comparison; Such as, can also set a threshold value, when the Uu_rate device that picks up counting during less than Needed_rate picks up counting; If the said transmission rate of eating dishes without rice or wine reaches said threshold value and continued for first scheduled time less than the speed of said professional actual needs, then carry out congested control.
Concrete congested control mode also can have multiple, can select for use according to actual needs, such as:
(1) HSUPA (High Speed Uplink Packet Access; The high speed uplink packet access) in the system; The base station reports SNPL (Serving and Neighbour cell Pathloss; Service and neighbor cell circuit loss value) information is to RNC (Radio Network Controller, radio network controller); In HSDPA (HighSpeed Downlink Packet Access, the high speed downlink packet inserts) system, the TBS of base station reporting terminal feedback (Thransmitting Block Size, transmission block size) information is given RNC.Therefore, RNC can judge each user's channel condition, the user of erasure channel condition difference according to these information.Like this, both less to system's total throughput influence, again can alleviate congestion, simultaneously, because no matter far and near the user is under the dedicated channel, the service quality that provides is identical, therefore, if channel switches, the user also can guarantee service quality.
(2) deletion guarantees the bit rate height but the low user of priority;
(3) add up each user's speed and time delay, deletion speed low or the time user that prolongs.
In embodiments of the present invention, described first scheduled time and described first scheduled time can be set to identical, also can be set to difference.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
Visible by the foregoing description; GSM congestion control method of the present invention is introduced new congestion judging mechanism to congested characteristics in the HSPA system, and the bit rate (transmission rate of promptly eating dishes without rice or wine) and the speed of professional actual needs that being about to physical layer can provide compare; If in a period of time; The bit rate that physical layer can provide is less than the speed of professional actual needs, and then illustrative system is in congestion state, carries out congested control.If in a period of time, the bit rate that physical layer can provide is greater than the speed of professional actual needs, and then illustrative system is normal, carries out congested recovery.Thereby can make the congested control of HSPA system more accurate and effective, and realize simply need not adding any measuring amount.
As shown in Figure 2; It is the structural representation of the device of the congested control of embodiment of the invention GSM; This device mainly comprises: first computing unit 201, second computing unit 202 and congested control unit 203 also can further comprise congested recovery unit 204.Wherein:
In this embodiment, the structure of said first computing unit 201 is as shown in Figure 3, comprising:
Obtain subelement 301 and computation subunit 302, also can further comprise smoothing processing subelement 303.Wherein: obtain subelement 301 and be used to obtain the bit rate that bit rate that HS-DSCH that the base station reports can provide or E-DCH provide; Computation subunit 302 is used for computation subunit, is used for obtaining the bit rate that subelement obtains according to said, and the professional bit rate of all guaranteed bit rates in the sub-district is sued for peace obtains the said transmission rate of eating dishes without rice or wine; Smoothing processing subelement 303 is used for the transmission rate of eating dishes without rice or wine that computation subunit 301 calculates is carried out smoothing processing, with the eat dishes without rice or wine transmission rate of transmission rate as the reality acquisition of eating dishes without rice or wine after the smoothing processing.
The concrete implementation procedure of utilizing the device of the embodiment of the invention can carry out congested control can repeat no more at this with reference to the front to the description among the inventive method embodiment.
The device of the congested control of GSM of the embodiment of the invention can be integrated on the RNC, also can be used as an independently physical entity and existing.
Utilize the device of the embodiment of the invention, can make the congested control of HSPA system more accurate and effective
More than the embodiment of the invention has been carried out detailed introduction, used embodiment among this paper the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. a GSM congestion control method is characterized in that, comprising:
The calculating transmission rate of eating dishes without rice or wine;
The speed of computing service actual needs; Specifically comprise: the mean value of the professional minimum-rate value of the mean value of all users' of guaranteed bit rate demand assurance bit rate value and non-assurance bit rate in the computing system respectively, with two mean values that obtain and as the speed of said professional actual needs;
If the said transmission rate of eating dishes without rice or wine is then carried out congested control less than lasting first scheduled time of the speed of said professional actual needs.
2. method according to claim 1 is characterized in that, the said calculating transmission rate of eating dishes without rice or wine comprises:
Obtain the high-speed downlink shared channel HS-DSCH that the base station reports or strengthen the bit rate that all kinds of business of dedicated channel E-DCH provide;
The bit rate of all kinds of business that all guaranteed bit rates and minimum-rate in the sub-district are required is sued for peace and is obtained the said transmission rate of eating dishes without rice or wine.
3. method according to claim 2 is characterized in that, said method also comprises: the transmission rate of eating dishes without rice or wine to calculating is carried out smoothing processing, with the eat dishes without rice or wine transmission rate of transmission rate as the reality acquisition of eating dishes without rice or wine after the smoothing processing.
4. method according to claim 1 is characterized in that, said congested control comprises:
Service that reports according to the base station and neighbor cell circuit loss value SNPL information or transmission block size TBS information are confirmed each user's channel condition, delete the wherein user of bad channel conditions; Perhaps
Deletion guarantees the bit rate height but the low user of priority; Perhaps
Add up each user's speed and time delay, and deletion speed is low or the time user that prolongs.
5. according to each described method of claim 1 to 4, it is characterized in that said method also comprises:
If the said transmission rate of eating dishes without rice or wine is then carried out congested recovery greater than lasting second scheduled time of the speed of said professional actual needs.
6. the device of the congested control of GSM is characterized in that, comprising:
First computing unit is used for calculating the transmission rate of eating dishes without rice or wine;
Second computing unit; The speed that is used for the computing service actual needs; Specifically comprise: the mean value of the professional minimum-rate value of the mean value of all users' of guaranteed bit rate demand assurance bit rate value and non-assurance bit rate in the computing system respectively, with two mean values that obtain and as the speed of said professional actual needs;
Congested control unit is used to judge when the said transmission rate of eating dishes without rice or wine continued for first scheduled time less than the speed of said professional actual needs, carries out congested control.
7. device according to claim 6 is characterized in that, said first computing unit comprises:
Obtain subelement, be used to obtain the bit rate that HS-DSCH that the base station reports or all kinds of business of E-DCH provide, the bit rate of all kinds of business that all guaranteed bit rates and minimum-rate in the sub-district are required is sued for peace and is obtained the said transmission rate of eating dishes without rice or wine;
Computation subunit is used for obtaining the bit rate that subelement obtains according to said, and the bit rates of the professional all kinds of business that require with minimum-rate of all guaranteed bit rates in the sub-district are sued for peace obtains the said transmission rate of eating dishes without rice or wine.
8. device according to claim 7 is characterized in that, said first computing unit also comprises:
The smoothing processing subelement is used for the transmission rate of eating dishes without rice or wine that said computation subunit calculates is carried out smoothing processing, with the eat dishes without rice or wine transmission rate of transmission rate as the reality acquisition of eating dishes without rice or wine after the smoothing processing.
9. according to each described device of claim 6 to 8, it is characterized in that said device also comprises:
Congested recovery unit is used to judge when the said transmission rate of eating dishes without rice or wine continued for second scheduled time greater than the speed of said professional actual needs, carries out congested recovery.
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| CN102340778B (en) * | 2010-07-22 | 2015-03-25 | 中兴通讯股份有限公司 | Adjustment method of high interference preindication information and apparatus thereof |
| CN102404778B (en) * | 2010-09-16 | 2014-03-26 | 普天信息技术研究院有限公司 | Load estimation method |
| CN104243090B (en) * | 2013-06-19 | 2017-11-03 | 中国移动通信集团公司 | A kind of transmission rate method of adjustment and equipment fed back based on wireless channel |
| US20180212719A1 (en) * | 2017-01-24 | 2018-07-26 | Mediatek Inc. | Tcp enhancements in reduced radio link quality conditions |
| CN112188513B (en) * | 2019-07-05 | 2023-10-03 | 普天信息技术有限公司 | Method and device for improving data transmission rate of terminal |
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| CN1913663A (en) * | 2006-08-31 | 2007-02-14 | 华为技术有限公司 | Method and system for obtaining congestion cause |
| CN1933430A (en) * | 2005-11-30 | 2007-03-21 | 华为技术有限公司 | Method for measuring IUB interface usable bandwidth and interface rate |
| CN1984068A (en) * | 2006-06-15 | 2007-06-20 | 华为技术有限公司 | Method and device for controlling data flow |
| CN101170352A (en) * | 2006-10-25 | 2008-04-30 | 中兴通讯股份有限公司 | Acceptance control method for uplink enhanced special channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933430A (en) * | 2005-11-30 | 2007-03-21 | 华为技术有限公司 | Method for measuring IUB interface usable bandwidth and interface rate |
| CN1984068A (en) * | 2006-06-15 | 2007-06-20 | 华为技术有限公司 | Method and device for controlling data flow |
| CN1913663A (en) * | 2006-08-31 | 2007-02-14 | 华为技术有限公司 | Method and system for obtaining congestion cause |
| CN101170352A (en) * | 2006-10-25 | 2008-04-30 | 中兴通讯股份有限公司 | Acceptance control method for uplink enhanced special channel |
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