CN101136668A - Forward power overload control method of multi-carrier radio frequency system - Google Patents
Forward power overload control method of multi-carrier radio frequency system Download PDFInfo
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- CN101136668A CN101136668A CNA2006101455372A CN200610145537A CN101136668A CN 101136668 A CN101136668 A CN 101136668A CN A2006101455372 A CNA2006101455372 A CN A2006101455372A CN 200610145537 A CN200610145537 A CN 200610145537A CN 101136668 A CN101136668 A CN 101136668A
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Abstract
This invention relates to a method for controlling forward power over-load of a multi-carrier RF system characterizing in: computing the mean power of each over-load period of the RF system according to real time power information and computing the over-load level of the RF system based on the over-load threshold of the RF system set before hand, if an over-load level of the carrier is lower than that of the RF system, then it is increased to the level of the RF system.
Description
Technical field
The present invention relates to mobile communcations system, be specifically related to a kind of forward power overload control method of multi-carrier radio frequency system.
Background technology
The CDMA2000 base station system is when solving covering problem, and the radio system of multicarrier has remarkable advantages.First is to support multiple signaling mode simultaneously, handles with same power amplifier.Second is that multicarrier does not require the number of channel, if dilatation when increasing the number of channel, does not need to increase any hardware.The power amplifier of multicarrier generally is such, 4 carrier waves, and general about 25 watts of each carrier wave, so if 8 carrier waves, each carrier wave is exactly about 12.5 watts.Also having one in addition is exactly the distribution of dynamic channel.Venue such as the Olympic Games, a lot of people will make a phone call in match, make a phone call but when this venue is obsolete, almost have no talent, if fixing this frequency resource is disposed to this venue is exactly a very big waste so no the time.Multicarrier can be realized dynamic allocated channel.Such as in the commuter time,, by day the work hours, more channel allocation to the Office Area, is arrived the residential area to more channel allocation at night the next door of more channel allocation to highway.
The radio system of multicarrier can be supported a plurality of carrier waves, and promptly a plurality of carrier waves can be configured on the same set of radio frequency unit, shares the power of this radio frequency unit.Radio frequency unit needs power control to prevent damage.
Traditional overload control is only carried out at carrier wave, not at the control of whole radio frequency unit power overload, each carrier wave nonoverload all under the same radio frequency unit may occur, but the gross power of each carrier wave surpasses the rated power of radio frequency unit, cause radio system to be damaged.Therefore except controlling each carrier power nonoverload, also need control at radio system power overload.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of forward power overload control method of multi-carrier radio frequency system, can control the overload of the radio system of multicarrier, thus the radio system of protection base station.
Above-mentioned technical problem of the present invention solves like this, and a kind of forward power overload control method of multi-carrier radio frequency system is provided, and each carrier wave carries out the control of carrier power overload by overload level separately in the radio system, and is further comprising the steps of:
1.1) identification of radio system overload: cross the radio system average power of load period and calculate the radio system overload level according to the realtime power information calculations is every in conjunction with predefined radio system overload threshold;
1.2) control of radio system overload: if the overload level of carrier wave is lower than the overload level of radio system, then the overload level lifting with this carrier wave is the overload level of radio system.
So just can on existing carrier power overload control basis, realize power overload control to radio system/whole radio frequency unit.
According to control method provided by the invention, described step 1.1) specifically comprise:
1.1.1) each channel board reports the power reporting message that comprises self each carrier frequency sector power information;
1.1.2) the base band control module obtains and calculate according to described message and obtain carrier power;
1.1.3) arrived load period, calculate carrier wave and radio system and cross the average power separately of load period and calculate overload level separately according to overload threshold separately at this.
According to control method provided by the invention, the overload level of described carrier wave is corresponding one by one and consistent with the overload level of described radio system.
According to control method provided by the invention, described carrier power equals the power sum that interior each channel board of radio system reports all the carrier frequency sectors corresponding with this carrier wave.
According to control method provided by the invention, described carrier wave average power equals this to be crossed repeatedly described carrier power sum in the load period and crosses the described number of times that reports in the load period divided by this, and described radio system average power equals each carrier wave average power sum in this radio system.
According to control method provided by the invention, the method for grading control is adopted in the control of described carrier power overload.At situations such as calling, switching, bring to powers, different carrier wave overload levels are done different restrictions.
According to control method provided by the invention, described carrier power overload control hierarchy adopts the double threshold protection, prevents the table tennis overload.
According to control method provided by the invention, circulation controlling means is adopted in the control of described carrier power overload, cycle is judged the overload level of carrier wave, and when finding that carrier power reaches certain overload level, the continuation of controlling carrier power by modes such as restriction call, switching, bring to powers promotes.
According to control method provided by the invention, the overload level of described carrier wave is corresponding and consistent with the overload level of described radio system.
According to control method provided by the invention, described channel board can dispose one or more carrier frequency sector.
According to control method provided by the invention, described channel board can be one or more.
According to control method provided by the invention, described multi-carrier RF system can be GSM, CDMA2000, WCDMA or TDCDMA.
Forward power overload control method of multi-carrier radio frequency system provided by the invention, make the overload level of arbitrary carrier wave be greater than or equal to the overload level of radio system, thereby not only can carry out power control to carrier wave, and can carry out power control to whole radio frequency unit/radio system, the more effective excessive radio frequency unit that causes of system power of having avoided damages, and has guaranteed the safe, reliable and stable of system.。
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of forward power overload control method of multi-carrier radio frequency system of the present invention.
Embodiment
Have total M piece channel board under the base station in mobile communcations system, note is made CHMi, i=1...M respectively; Disposed N carrier frequency sector on the every channel board, note is made Crj, j=1...N respectively.Forward power overload control method of multi-carrier radio frequency system of the present invention can be used at this embodiment, specifically as shown in Figure 1, may further comprise the steps:
1. the base band control module is received the power reporting message that channel board CHMi reports, and this message should comprise the transmitting power Pi (Crj) that CHMi goes up N carrier frequency sector of configuration, j=1...N;
2. the base band control module is preserved each carrier frequency sector power P i (Crj) that channel board CHMi reports, j=1...N;
3. the base band control module has judged whether to receive the power reporting message of all M piece CHM, if do not repeat the 1st step and the 2nd step; Otherwise continued for the 4th step;
4. calculate and preserve power and Psum (the Crj)=∑ Pi (Crj) of carrier power: carrier frequency sector Crj (j=1...N) at each channel board;
5. the base band control module judges whether to arrive load period.If do not arrive load period, repeat four steps of the first step to the so, calculate carrier power each time respectively: power and Psum (Crj) ＇, the Psum (Crj) of each carrier frequency sector Cj on all channel boards " ... ....Otherwise continued for the 6th step;
6. calculate the carrier wave average power: the average power Pav (Crj) of each carrier frequency sector Cj in this crosses load period=Psum (Crj)+Psum (Crj) ＇+... }/K, wherein K was the number of times that every channel board reports power in the load period;
7. calculate the radio system average power: radio system this cross average power PRFS=Pav (the Crj)+Pav (Crk) of load period+...; Wherein Crj, Crk ... for being configured in each carrier wave on this radio system;
8. calculate each carrier wave Cj overload level OLc according to the carrier power overload threshold, calculate the overload level OLr of radio system according to radio system power overload thresholding, if the overload level OLc of carrier wave Cj is lower than the overload level OLr of its place radio system, the overload level of carrier wave promotes and is the overload level OLr of radio system so.
9. according to the overload level of carrier wave, carry out the control of carrier power overload, be provided with consistent and one by one corresponding with the overload level of carrier wave the overload level of radio system, because the overload level of arbitrary carrier wave is greater than or equal to the overload level Olr of radio system, therefore promptly realized the control of radio system power overload like this by the control of carrier power overload.
Claims (10)
1. each carrier wave carries out the control of carrier power overload by overload level separately in forward power overload control method of multi-carrier radio frequency system, radio system, it is characterized in that, and is further comprising the steps of:
1.1) identification of radio system overload: cross the radio system average power of load period and calculate the radio system overload level according to the realtime power information calculations is every in conjunction with predefined radio system overload threshold;
1.2) control of radio system overload: if the overload level of carrier wave is lower than the overload level of radio system, then the overload level lifting with this carrier wave is the overload level of radio system.
2. according to the described control method of claim 1, it is characterized in that described step 1.1) specifically comprise:
1.1.1) each channel board reports the power reporting message that comprises self each carrier frequency sector power information;
1.1.2) the base band control module obtains and calculate according to described message and obtain carrier power;
1.1.3) arrived load period, calculate carrier wave and radio system and cross the average power separately of load period and calculate overload level separately according to overload threshold separately at this.
3. according to claim 1 or 2 described control methods, it is characterized in that described carrier wave is corresponding one by one and consistent with the overload level of radio system.
4. according to the described control method of claim 2, it is characterized in that described carrier power equals the power sum that interior each channel board of radio system reports all the carrier frequency sectors corresponding with this carrier wave.
5. according to claim 2 or 4 described control methods, it is characterized in that, described carrier wave average power equals this to be crossed repeatedly described carrier power sum in the load period and crosses the described number of times that reports in the load period divided by this, and described radio system average power equals each carrier wave average power sum in this radio system.
6. according to the described control method of claim 1, it is characterized in that the method for grading control is adopted in the control of described carrier power overload.
7. according to the described control method of claim 1, it is characterized in that described carrier power overload control hierarchy adopts the double threshold protection that prevents to rattle and transship.
8. according to the described control method of claim 1, it is characterized in that circulation controlling means is adopted in the control of described carrier power overload.
9. according to the described control method of claim 1, it is characterized in that described channel board can be one or more; Described channel board can dispose one or more carrier frequency sector.
10. according to the described control method of claim 1, it is characterized in that described multi-carrier RF system can be GSM, CDMA2000, WCDMA or TDCDMA.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101455372A CN101136668A (en) | 2006-11-20 | 2006-11-20 | Forward power overload control method of multi-carrier radio frequency system |
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| CNA2006101455372A CN101136668A (en) | 2006-11-20 | 2006-11-20 | Forward power overload control method of multi-carrier radio frequency system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577933B (en) * | 2009-06-04 | 2011-12-07 | 中兴通讯股份有限公司 | Forward power overload control method for dynamically dividing user level and device thereof |
| CN101547029B (en) * | 2008-03-28 | 2012-11-28 | 中兴通讯股份有限公司 | Method for controlling overloading of forward power in code division multiple access system |
-
2006
- 2006-11-20 CN CNA2006101455372A patent/CN101136668A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547029B (en) * | 2008-03-28 | 2012-11-28 | 中兴通讯股份有限公司 | Method for controlling overloading of forward power in code division multiple access system |
| CN101577933B (en) * | 2009-06-04 | 2011-12-07 | 中兴通讯股份有限公司 | Forward power overload control method for dynamically dividing user level and device thereof |
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Open date: 20080305 |