CN101155378B - Method for testing vector amplitude value of error under high speed ascending grouped access channel configuration - Google Patents
Method for testing vector amplitude value of error under high speed ascending grouped access channel configuration Download PDFInfo
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- CN101155378B CN101155378B CN200610140120A CN200610140120A CN101155378B CN 101155378 B CN101155378 B CN 101155378B CN 200610140120 A CN200610140120 A CN 200610140120A CN 200610140120 A CN200610140120 A CN 200610140120A CN 101155378 B CN101155378 B CN 101155378B
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Abstract
A method for testing error vector amplitude under high speed uplink packet access channel configuration is disclosed in the present invention, comprising: (1) constituting a HSUPA composite channel with a plurality of DCH channels, HS-DCH channels and E-DCH channels, and distributing power to each sub-channel; (2) establishing HSUPA call, and regulating terminal emitting power to most emitting power state for testing; (3) terminal emitting HSUPA data; (4) using spreading codes of DCH channel, HS-DCH channels and E-DCH channels separately to despread HSUPA composite channel, processing EVM test to the obtained DCH channels, HS-DCH channels and E-DCH channels, if the EVM value of the sub-channel is not more than presetting threshold, then reducing the terminal emitting power, returning to (3), until its emitting power achieving the least emitting power for testing getting across test. The method reduces interference between multiple code-channels and effect of time slot excursion between code-channels to EVM value, and overcomes the defect that the average EVM value of the HSUPA composite channel difficult to really reflect each sub-channel modulation performance.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of under high speed ascending grouped access channel configuration the method for testing vector amplitude value of error, be used for the WCDMA system.
Background technology
WCDMA (Wide-band Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) system of broadband wireless communication is one of 3-G (Generation Three mobile communication system) (3G) international standard.HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts) be not change substantially under the prerequisite of existing hardware, further improve the uplink channel capacity, improve the effective technology of bandwidth availability ratio, and with HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) and the R99 compatibility, be the evolution direction of WCDMA system development.
HSUPA studies method of testing and the parameter setting of EVM (Error Vector Magnitude, vector amplitude value of error), does not still have final conclusion at present.Traditional EVM method of testing is the average EVM value of the whole compound channel of test in a TTI (Transmission Time Interval), assesses the transmitting terminal modulating performance with this.Because it is the HSUPA technology has been introduced more high speed code channel, and has slot offset between each code channel, therefore then more difficult for HSUPA EVM test.Because the increase of high speed code channel makes the average EVM value of compound channel be difficult to assess accurately the rf modulations performance, therefore traditional EVM method of testing has been difficult to tackle the test of HSUPA EVM.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of under the HSUPA channel configuration method of testing vector amplitude value of error, be used for the WCDMA system, reduced the influence to the EVM value of interference between many code channels and the slot offset between the code channel, the average EVM value that has overcome the HSUPA compound channel simultaneously is difficult to truly reflect each sub-channel modulation performance defect.
In order to solve the problems of the technologies described above, the invention provides a kind of under the HSUPA channel configuration method of testing vector amplitude value of error, the method for vector amplitude value of error, this method comprises:
(1) several DCH channels, HS-DPCCH channel and E-DCH channel are formed a high speed uplink packet and inserted compound channel, and be each subchannel of described compound channel, promptly DCH channel, HS-DPCCH channel and E-DCH channel distribute power;
(2) set up high speed uplink packet and insert calling, and the transmitting power of terminal is adjusted, make terminal be in test maximum transmission power state; Described terminal is used for that DCH channel, HS-DPCCH channel, E-DCH channel formed that a high speed uplink packet inserts compound channel and for described each subchannel distributes power, sets up high speed uplink packet and inserts and call out and the emission high speed uplink packet inserts data;
(3) terminal emission high speed uplink packet inserts data;
(4) utilize the spreading code of DCH channel, HS-DPCCH channel and E-DCH channel that high speed uplink packet access compound channel is carried out despreading respectively, DCH channel, HS-DPCCH channel and the E-DCH channel that obtains after the despreading separation carried out the vector amplitude value of error test respectively, if the vector amplitude value of error of each subchannel of described compound channel all is not more than default thresholding, then reduce the transmitting power of terminal according to the variable power step-length, return step (3), test is passed through when its transmitting power reaches test with minimum emissive power.
Wherein, described step (4) further comprises, if the vector amplitude value of error that has certain subchannel in the described compound channel greater than default thresholding, is then tested and do not passed through, finishes testing process.
Wherein, step (1) is carried out energy distribution to it, is set the corresponding power parameter beta for each subchannel of described compound channel distributes power to be
c, β
d, β
Ec, β
EcAnd β
HsValue, wherein, β
c=1, β
d/ β
c=15/15, β
Ec/ β
c=15/15, β
Hs/ β
c=5/15 and β
Ed/ β
c=5/15.
Wherein, the described high speed uplink packet of step (3) inserts data and by terminal the data of DCH channel, HS-DPCCH channel, E-DCH channel is carried out the high speed uplink packet incoming data frame that addition is formed behind the spread spectrum.
Wherein, the described spreading code of step (4) is an orthogonal intersection.
A kind of under high speed ascending grouped access channel configuration the device of testing vector amplitude value of error, it is characterized in that, comprising: terminal, test adjustment unit, test cell, wherein,
Described terminal, be used for that DCH channel, HS-DPCCH channel, E-DCH channel are formed a high speed uplink packet and insert compound channel, and be each subchannel of described compound channel, be DCH channel, HS-DPCCH channel and E-DCH channel, distribute power, set up high speed uplink packet and insert calling and emission high speed uplink packet access data;
Described test adjustment unit is used for the process in the vector amplitude value of error test, and control terminal is set up high speed uplink packet and inserted calling and adjust transmitting power;
Described test cell, be used to utilize the DCH channel, the spreading code of HS-DPCCH channel and E-DCH channel inserts compound channel to high speed uplink packet and carries out despreading, to the DCH channel that obtains after the despreading separation, HS-DPCCH channel and E-DCH channel carry out the vector amplitude value of error test respectively, wherein: during initial condition, the transmitting power of terminal adjusted and make it be in test use the maximum transmission power state, carrying out along with test, and reduce the transmitting power of terminal according to the variable power step-length, reach the test minimum emissive power up to its transmitting power, in this process, if the vector amplitude value of error of each subchannel of described compound channel all is not more than default thresholding, then test is passed through.
Wherein, described test cell further comprises: if the vector amplitude value of error of certain subchannel of described compound channel greater than default thresholding, is then tested and do not passed through, finish testing process.
Of the present invention a kind of under the HSUPA channel configuration method of testing vector amplitude value of error, overcome the shortcoming of traditional E VM method of testing, it is to test respectively after utilizing orthogonal intersection to separate each code channel, by test, assess out the rf modulations performance of transmitting terminal accurately to each code channel.The method of the invention has reduced the influence to the EVM value of interference between many code channels and the slot offset between the code channel, for WCDMA HSUPA terminal EVM test provides conforming solution.
Description of drawings
Fig. 1 be according to the embodiment of the invention described a kind of under the HSUPA channel configuration structural representation of testing vector amplitude value of error device;
Fig. 2 be according to the embodiment of the invention described a kind of under the HSUPA channel configuration schematic flow sheet of testing vector amplitude value of error method;
Fig. 3 is the implementation process schematic diagram according to a specific embodiment of the method for the invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
With reference to figure 1, for the embodiment of the invention described a kind of under the HSUPA channel configuration structural representation of testing vector amplitude value of error device. the testing apparatus of described EVM is by terminal, test cell, form with the test adjustment unit. wherein, described terminal is with the DCH channel, the data of HS-DPCCH channel and E-DCH channel are carried out addition behind the spread spectrum, obtaining a HSUPA Frame and with its transmission. described test cell is used for the HSUPA Frame that terminal sends is carried out despreading, and test EVM value. described test adjustment unit is used in the process of EVM test terminal being controlled, and terminal is set up the HSUPA calling and changed transmitting power according to the order of test adjustment unit.
The test process of EVM as shown in Figure 2, for the embodiment of the invention described a kind of under the HSUPA channel configuration schematic flow sheet of testing vector amplitude value of error method.Detailed process is as follows:
Step 210: the multiple and channel of configuration.With m DCH channel, n HS-DPCCH channel and k the synthetic HSUPA compound channel of E-DCH channel group.
Step 220: sub-channel power is distributed.Described each subchannel is carried out power division, be described each subchannel is carried out energy distribution, set corresponding β
c, β
d, β
Ec, β
EcAnd β
HsValue.
Step 230: set up HSUPA and call out, and the transmitting power of terminal is adjusted into the test maximum transmission power.Transmitting power to terminal is adjusted, and makes it be in test maximum transmission power state.
Step 240: terminal emission HSUPA data.These data are carried out the high speed uplink packet incoming data frame that addition is formed behind the spread spectrum by terminal with the data of DCH channel, HS-DPCCH channel, E-DCH channel.
Step 250: channel despreading.Utilize the orthogonal intersection of DCH channel, HS-DPCCH channel and E-DCH channel that the HSUPA compound channel is carried out despreading respectively.
Step 260: to the E-DCH channel that obtains after the despreading separation, HS-DPCCH channel and DCH channel carry out the EVM test respectively.
Step 270: the EVM value that judges whether to have certain subchannel is greater than default thresholding, if, then enter step 290, if not, step 280 then entered.
Step 280: reduce the transmitting power of terminal according to the variable power step-length, return step 240, when its transmitting power reaches test with minimum emissive power, test and pass through.
Step 290: test is not passed through, and finishes testing process.
Below a specific embodiment of the present invention is described in detail, with reference to figure 3.Detailed process is as follows:
Step 310: configuration compound channel.With 1 DPDCH channel, 1 HS-DPCCH channel, 2 E-DPDCH channels and 1 E-DPCCH channel are formed a HSUPA compound channel.
Step 320: sub-channel power is distributed.Described each subchannel is carried out power division, be described each subchannel is carried out energy distribution, the power parameter of each subchannel is set at β
c=1, β
d/ β
c=15/15, β
Ec/ β
c=15/15, β
Hs/ β
c=5/15 and β
Ed/ β
c=5/15.
Step 330: set up HSUPA and call out, and the transmitting power of terminal is adjusted into test maximum 24dBm.
Step 340: terminal emission HSUPA data.These data are carried out the HSUPA Frame that addition is formed behind the spread spectrum by terminal with the data of DCH channel, HS-DPCCH channel, E-DCH channel.
Step 350: channel despreading.Test cell utilizes the E-DCH channel respectively, and the orthogonal intersection of HS-DPCCH channel and DCH channel carries out despreading to the HSUPA compound channel.
Step 360: to the E-DCH channel that obtains after the despreading separation, HS-DPCCH channel and DCH channel carry out the EVM test respectively.
Step 370: the EVM value that judges whether to have certain subchannel is greater than 17.5%, if then test is not passed through, if not, then enter step 380.
Step 380: the transmitting power of terminal reduces 1dB.
Step 390: whether the transmitting power of judging terminal less than-20dBm, if then test is passed through, if not, then enter step 340.
Claims (7)
1. the method for a testing vector amplitude value of error under the high speed ascending grouped access channel configuration is used for the WCDMA system, it is characterized in that, comprising:
(1) several DCH channels, HS-DPCCH channel and E-DCH channel are formed a high speed uplink packet and inserted compound channel, and be each subchannel of described compound channel, promptly DCH channel, HS-DPCCH channel and E-DCH channel distribute power;
(2) set up high speed uplink packet and insert calling, and the transmitting power of terminal is adjusted, make terminal be in test maximum transmission power state; Described terminal is used for that DCH channel, HS-DPCCH channel, E-DCH channel formed that a high speed uplink packet inserts compound channel and for described each subchannel distributes power, sets up high speed uplink packet and inserts and call out and the emission high speed uplink packet inserts data;
(3) terminal emission high speed uplink packet inserts data;
(4) utilize the spreading code of DCH channel, HS-DPCCH channel and E-DCH channel that high speed uplink packet access compound channel is carried out despreading respectively, DCH channel, HS-DPCCH channel and the E-DCH channel that obtains after the despreading separation carried out the vector amplitude value of error test respectively, if the vector amplitude value of error of each subchannel of described compound channel all is not more than default thresholding, then reduce the transmitting power of terminal according to the variable power step-length, return step (3), test is passed through when its transmitting power reaches test with minimum emissive power.
2. the method for claim 1 is characterized in that, described step (4) further comprises, if the vector amplitude value of error of some subchannels of each subchannel of described compound channel greater than default thresholding, is then tested and do not passed through, finishes testing process.
3. the method for claim 1 is characterized in that, step (1) is carried out energy distribution to it, set the corresponding power parameter beta for each subchannel of described compound channel distributes power to be
c, β
d, β
Ec, β
EdAnd β
HsValue, wherein, β
c=1, β
d/ β
c=15/15, β
Ec/ β
c=15/15, β
Hs/ β
c=5/15 and β
Ed/ β
c=5/15.
4. the method for claim 1, it is characterized in that the described high speed uplink packet of step (3) inserts data and by terminal the data of DCH channel, HS-DPCCH channel, E-DCH channel carried out the high speed uplink packet incoming data frame that addition is formed behind the spread spectrum.
5. the method for claim 1 is characterized in that, the described spreading code of step (4) is an orthogonal intersection.
6. the device of a testing vector amplitude value of error under the high speed ascending grouped access channel configuration is characterized in that, comprising: terminal, test adjustment unit, test cell, wherein,
Described terminal, be used for that DCH channel, HS-DPCCH channel, E-DCH channel are formed a high speed uplink packet and insert compound channel, and be each subchannel of described compound channel, be DCH channel, HS-DPCCH channel and E-DCH channel, distribute power, set up high speed uplink packet and insert calling and emission high speed uplink packet access data;
Described test adjustment unit is used for the process in the vector amplitude value of error test, and control terminal is set up high speed uplink packet and inserted calling and control its adjustment transmitting power;
Described test cell, be used to utilize the DCH channel, the spreading code of HS-DPCCH channel and E-DCH channel inserts compound channel to high speed uplink packet and carries out despreading, to the DCH channel that obtains after the despreading separation, HS-DPCCH channel and E-DCH channel carry out the vector amplitude value of error test respectively, wherein: during initial condition, the transmitting power of terminal adjusted and make it be in test use the maximum transmission power state, carrying out along with test, and reduce the transmitting power of terminal according to the variable power step-length, reach the test minimum emissive power up to its transmitting power, in this process, if the vector amplitude value of error of each subchannel of described compound channel all is not more than default thresholding, then test is passed through.
7. device as claimed in claim 6 is characterized in that, described test cell further comprises: if the vector amplitude value of error of certain subchannel of described compound channel greater than default thresholding, is then tested and do not passed through, finish testing process.
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| CN200610140120A CN101155378B (en) | 2006-09-30 | 2006-09-30 | Method for testing vector amplitude value of error under high speed ascending grouped access channel configuration |
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| CN101155378B true CN101155378B (en) | 2010-05-12 |
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| CN101355798B (en) * | 2008-05-20 | 2011-05-11 | 中国移动通信集团设计院有限公司 | Transmission method for TD-SCDMA/HSDPA multi-code channel |
| CN101784077B (en) * | 2009-01-15 | 2013-02-27 | 中兴通讯股份有限公司 | TD_HSUPA uplink data processing system and method |
| CN105591703B (en) * | 2014-10-21 | 2020-04-17 | 中兴通讯股份有限公司 | Method and device for determining error vector magnitude related parameters |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222878B1 (en) * | 1999-09-27 | 2001-04-24 | Sicom, Inc. | Communication system with end-to-end quadrature balance control |
| CN1476269A (en) * | 2002-07-19 | 2004-02-18 | ������������ʽ���� | Wireless receiving apparatus, method and program thereof |
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2006
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222878B1 (en) * | 1999-09-27 | 2001-04-24 | Sicom, Inc. | Communication system with end-to-end quadrature balance control |
| CN1476269A (en) * | 2002-07-19 | 2004-02-18 | ������������ʽ���� | Wireless receiving apparatus, method and program thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-102073A 2005.04.14 |
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