CN100420325C - Charge loading method for cdma2000 1xEV-DO system covering test - Google Patents
Charge loading method for cdma2000 1xEV-DO system covering test Download PDFInfo
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- CN100420325C CN100420325C CNB2006100016645A CN200610001664A CN100420325C CN 100420325 C CN100420325 C CN 100420325C CN B2006100016645 A CNB2006100016645 A CN B2006100016645A CN 200610001664 A CN200610001664 A CN 200610001664A CN 100420325 C CN100420325 C CN 100420325C
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000011068 loading method Methods 0.000 title claims abstract description 40
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- 238000004088 simulation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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Abstract
The present invention provides a charge loading method of a coverage test of a CDMA2000 1x EV-DO system, which is particularly applicable to charge loading before the coverage test of the CDMA2000 1x EV-DO system. The method adopts a standard test protocol FTAP for the charge loading. After the connection of an AN and an AT is established, the AN initiates an FTAP Parameter Assignment message to set a charge loading proportion. The coverage test under a charge loading environment based on the FTAP has a process which is the same with a publicly known test process. In addition, different loading proportions can be arranged according to requirements, and a local district or a neighbor district can be loaded. The adoption of the charge loading method of the present invention does not need changes of the existing hardware devices. The present invention has the advantages of good versatility, simplicity and easy realization, and can well overcome the disadvantage that the existing charge loading method of a coverage test is not universal.
Description
Technical field
The present invention relates to a kind of load loading method of Radio Network System coverage test, and be particularly related to the load loading method of a kind of CDMA 2000 evolved data-optimized (Code Division MultipleAccess 2000 Evolution Data Optimized) (hereinafter to be referred as cdma2000 1xEV-DO) system's coverage test.
Background technology
In the test of cdma2000 1x EV-DO wireless network performance, coverage test is a very important test item.Coverage test mainly is in order to investigate the outdoor covering performance of tested Radio Network System outdoor version base station, to determine the coverage of tested sub-district.General coverage test is that the covering of miscellaneous service under the different districts loading condition is tested.
In order to investigate signal self transmission capacity and the signal transmission capacity of simulation real network under this or adjacent sub-district noisy condition, coverage test is generally carried out under multiple load condition, close or load as adjacent sub-district, and this sub-district is closed or loading etc.At present, the equipment of different manufacturers has different loading methods in test process, as IDLE_SLOT_GAIN parameter, forward link user simulation (being called for short FLUS) is set, Ctrl_Flus mode etc., and loading method is directly related with the Operation and Maintenance of equipment, but at present in the load loading method that each producer adopts, without any a kind of method is that all producers can support, and because the difference of loading method, cause the degree of loading not have comparativity, be unfavorable for carrying out the comprehensive examination and evaluation of equipment.Therefore load loading method versatility is relatively poor in the present coverage test process.
Forward direction Test Application agreement (Forward Test Application Protocol) (hereinafter to be referred as FTAP) is to be third generation partner program 2 (3rd Generation Partnership Project2, abbreviation 3GPP2) the standard testing agreement of formulating that is applicable to cdma2000 1x EV-DO network, it is a kind of protocol testing method of standard, be used to investigate the agreement whether network equipment supports standard, whether can meet the basic agreement flow process.Usually in test, the download during available FTAP test protocol analog subscriber uses, it can simulate nearly 12 kinds of different downloading rates (38.4Kbps to 2457.6Kbps) of cdma2000 1x EV-DO definition.This agreement is generally used for: in industry/laboratory environment, realize accessing terminal and the Access Network minimum standard as instructing, the network equipment is tested; And at the scene in the environment, instruct some before, the test of reverse link performance.But, the FTAP agreement is not applied in the load loading of coverage test at present, if but can utilize the characteristics of FTAP agreement aspect the analog subscriber download, the load of using it for coverage test loads, and then can solve the problem that present test loading method can not be general.
Summary of the invention
In view of this, the present invention proposes a kind of cdma2000 of being applicable to 1x EV-DO system and loads at the load that is carrying out coverage test, and this method adopts the loading of loading of FTAP agreement, may further comprise the steps:
Step 1: between access terminal (Access Terminal) (hereinafter to be referred as AT) and Access Network (AccessNetwork) (being called for short AN down), connect;
Step 2:AN initiates forward direction application testing protocol parameter assignment (FTAPParameterAssignment) message to AT, set fixed data rate control model (DRCValueFixedMode wherein, wherein DRC is Data rate control) thresholding, setting is downloaded with fixing speed, to set descending loading ratio;
Step 3:AT sets to the AN return parameters and finishes message (FTAPParameterComplete);
Step 4: Access Network and access terminal exchange FTAP test packet and the grouping of FTAP loopback.
Further, in the above-mentioned steps 2, be by setting the thresholding of the fixed data rate control model (DRCValueFixedMode, wherein DRC is Data ratecontrol) among the above-mentioned FTAPParameterAssignment, with the ratio of assumed load loading.
Further, load by the load of forward direction Test Application protocol emulation at test period and remain talking state.
The present invention adopts standard testing agreement FTAP, can adopt for all producers, and not need to change existing hardware equipment, so versatility is better, and implementation process is simple, can solve the drawback that the loading of present coverage test load can not be general preferably.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the flow chart of FTAP protocol emulation user's download in a preferred embodiment of the present invention.
Fig. 2 is the testing equipment connection layout of cdma2000 1x EV-DO system coverage test
Embodiment
Cdma2000 1x EV-DO system descending is the time-division, thereby the loading ratio is the ratio that takies time slot, thereby can simulate the time slot that descending transmission takies with FTAP and reach the loading effect, that is to say if descending loading ratio is 50%, then be equivalent to take in the down link 50% time slot.The setting that loads for load then is to finish by the data rate control pattern in the parameter assignment message of FTAP agreement.Fig. 1 is a flow chart of using FTAP protocol emulation user's download in a preferred embodiment of the present invention.Realize that the key step that load loads is: in the coverage test of cdma2000 1x EV-DO network performance, sub-district for the need loading, will set up terminal that FTAP transmits be placed on the good position of signal (for example be that received signal to noise ratio is C/I＞5dB), carry out following load load step:
Step 1 is set up between AN and AT and is connected;
Step 2, AN initiates parameter assignment message FTAPParameterAssignment to AT, and the thresholding of fixed data rate control model DRCValueFixedMode wherein is set, and it is 0xa that thresholding for example is set, download so that the speed of 1.2M to be set fixedly, promptly setting descending loading ratio is 50%;
Step 3:AT sets to the AN return parameters and finishes message (FTAPParameterComplete);
Step 4: Access Network and access terminal exchange FTAP test packet and the grouping of FTAP loopback.
By above step, just the load that can finish based on the FTAP agreement loads, just can under this load environment, carry out coverage test afterwards, the coverage test process is identical with known coverage test process, testing equipment connection layout in the actual coverage test as shown in Figure 2, test with terminal from Access Network, advance to cell edge with comparatively stable speed, keep test to be connected with the calling of Access Network with terminal, can't keep stable up to itself and Access Network is connected, the record related data can be finished coverage test, should note monitoring test period FTAP in the test period and communication disruption (call drop) can not occur.In addition, loading is positioned at this sub-district or neighbor cell according to the FTAP load, and the covering that can carry out this sub-district or neighbor cell loads test.
Above embodiment is to be that example describes with descending loading ratio 50%, if need carry out the loading test of other ratios, also can carry out according to the method described above, according to loading ratio difference, be provided with by the thresholding of adjusting DRCValueFixedMode among the FTAPParameterAssignment, realize downloading with any fixed rate that is provided with between the 38.4Kbps to 2457.6Kbps.
The load that the present invention adopts standard testing agreement FTAP to carry out coverage test loads, can do not need to change existing hardware equipment, so versatility be better for all producers adopt, and implementation process is simple, can solve the drawback that the loading of present coverage test load can not be general preferably.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and change, so the present invention's protection range is as the criterion when looking the claim person of defining.
Claims (2)
1. the load loading method of cdma20001x EV-DO system coverage test is characterized in that this method adopts the protocol emulation of forward direction Test Application to load and loads, and may further comprise the steps:
Step 1: access terminal and Access Network between connect;
Step 2: Access Network is initiated forward direction application testing protocol parameter assignment message to accessing terminal, by setting the fixed data rate control model thresholding in the above-mentioned forward direction application testing protocol parameter assignment message, with the ratio of assumed load loading;
Step 3: above-mentioned accessing terminal finished message to above-mentioned Access Network return parameters setting;
Step 4: Access Network and access terminal protocol test grouping of exchange forward direction Test Application and the grouping of forward direction Test Application agreement loopback.
2. loading method according to claim 1 is characterized in that during coverage test that load by the protocol emulation of forward direction Test Application loads to remain talking state.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100016645A CN100420325C (en) | 2006-01-20 | 2006-01-20 | Charge loading method for cdma2000 1xEV-DO system covering test |
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| CNB2006100016645A CN100420325C (en) | 2006-01-20 | 2006-01-20 | Charge loading method for cdma2000 1xEV-DO system covering test |
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| CN1801996A CN1801996A (en) | 2006-07-12 |
| CN100420325C true CN100420325C (en) | 2008-09-17 |
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| CNB2006100016645A Expired - Fee Related CN100420325C (en) | 2006-01-20 | 2006-01-20 | Charge loading method for cdma2000 1xEV-DO system covering test |
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| CN101562496B (en) * | 2008-04-15 | 2012-06-06 | 中兴通讯股份有限公司 | System and method for controlling signal channel rate dynamic adjustment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618243A (en) * | 2001-12-10 | 2005-05-18 | 高通股份有限公司 | Method and apparatus for testing traffic and auxiliary channels in a wireless data communication system |
| CN1713165A (en) * | 2005-07-18 | 2005-12-28 | 北京金自天正智能控制股份有限公司 | Data communicating circuit of VME bus and DSP processor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618243A (en) * | 2001-12-10 | 2005-05-18 | 高通股份有限公司 | Method and apparatus for testing traffic and auxiliary channels in a wireless data communication system |
| CN1713165A (en) * | 2005-07-18 | 2005-12-28 | 北京金自天正智能控制股份有限公司 | Data communicating circuit of VME bus and DSP processor |
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