CN1355663A - Base station with wireless test function for frequency-division duplex wireless system and its test method - Google Patents
Base station with wireless test function for frequency-division duplex wireless system and its test method Download PDFInfo
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- CN1355663A CN1355663A CN 00127602 CN00127602A CN1355663A CN 1355663 A CN1355663 A CN 1355663A CN 00127602 CN00127602 CN 00127602 CN 00127602 A CN00127602 A CN 00127602A CN 1355663 A CN1355663 A CN 1355663A
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Abstract
A base station of frequency division duplex with radio testing function includes several tested letter receiving-dispatching devices as well as includes specially a new letter receiving-dispatching device and a change-over switch. The change-over switch selects to connect the new letter receiving-dispatching device with the tested letter receiving-dispatching device or the antenna of base station, and undertakes the function as a spare part when the original letter receiving-dispatching device is damaged or is used directly as the letter receiving-dispatching device to expand the system volume and to carry on testing operation by using the empty channel for making the radio testing device have both the function of testing and the function of letter receiving-dispatching in the base station to raise the utilization rate of radio testing device.
Description
The present invention relates to a kind of frequency-division duplex wireless system base station and method of testing thereof, relate in particular to a kind of frequency-division duplex wireless system base station and method of testing thereof with wireless test function.
As everyone knows, the receiver of FDD system is operated in different frequencies separately with sender, and as showing, the transmit frequency band of base station is frequency range B as Fig. 1, and receiving frequency range is frequency range A; Travelling carriage is then opposite, and receiving frequency range is frequency range B, and transmit frequency band is frequency range A.For the operate as normal that guarantees the R-T unit in the base station, in time understand and adjust the operating state of R-T unit, in time detect R-T unit fault, reduce mean time to repair of R-T unit, manufacturer often will develop corresponding testing device when the exploitation base station equipment.The relation of R-T unit and testing apparatus as shown in Figure 2 in the base station, comprise a R-T unit 102 and a wireless test device 101, carry out loopback test by air wireless interface: signal is from the transmitting terminal TX emission of R-T unit 102, from the receiving terminal RX reception of wireless test device 101; From the transmitting terminal TX emission of testing apparatus 101,, thereby finish the test loopback from the receiving terminal RX reception of R-T unit 102.The working frequency range of wireless test device is identical with travelling carriage, and is opposite with the working frequency range of base station, and receiving frequency range is frequency range B, and transmit frequency band is frequency range A.
There is following shortcoming in above-mentioned base station: the general independent exploitation wireless test device of base station manufacturer is about to R-T unit and makes the different physical entity of two covers with the wireless test device.The wireless test device mainly is in order to monitor the operating state of R-T unit, and when R-T unit was normal, its monitoring frequency can reduce, and when R-T unit is unsettled, can strengthen the monitoring to R-T unit.Because under most of situation, R-T unit is an operate as normal, so the practical efficiency of wireless test device is not high.So often producer has spent very great strength exploitation wireless test device, operator not necessarily purchase or amount of purchase very little, cause the development cost of producer's wireless test device to regain.Simultaneously, the wireless test device generally is installed among the base station, becomes a part of base station, takies a part of base station volume.The volume of base station is a very important index, is providing under the situation of same capacity, and operator wishes that the volume of base station is the smaller the better.Because the utilance of wireless test device is not high, the utilance of this part volume of base station is not high yet.
The objective of the invention is in order to overcome the irrationality of existing base station in the work of Frequency Division Duplexing (FDD) section, and a kind of frequency-division duplex wireless system base station and the method for testing thereof with wireless test function that the R-T unit and the wireless test device of base station are united two into one that proposes, adopt this base station and method, when testing, play by needs the wireless test device, when not needing test job, play the function of base station transceiver T unit, improved the utilance of wireless test device.
The technical scheme that realizes the object of the invention is: the frequency-division duplex wireless system base station with wireless test function, comprise a plurality of detected R-T units, be characterized in, the new R-T unit and one that also comprises a band radio detection function switches switch, the new R-T unit of described a plurality of detected R-T unit and band radio detection function is connected with diverter switch respectively, by the diverter switch selection with new R-T unit and detected R-T unit be connected or with being connected of antenna for base station; Signal is from the transmitting terminal emission of tested R-T unit, from the receiving terminal reception of new R-T unit, from the transmitting terminal emission of new R-T unit, from the receiving terminal reception of tested R-T unit.
Above-mentioned frequency-division duplex wireless system base station with wireless test function, wherein, comprise receiver and sender, receiver comprises: the end of collecting mail, first amplifier of collecting mail, first filter of collecting mail, collection of letters local oscillator, collection of letters frequency mixer, second amplifier of collecting mail, collect mail second filter, analog to digital converter are linked in sequence; Sender comprises: digital to analog converter, first filter of posting a letter, first amplifier of posting a letter, the local oscillator of posting a letter, the frequency mixer of posting a letter, second filter of posting a letter, post a letter second amplifier, transmitting end are linked in sequence.
Above-mentioned frequency-division duplex wireless system base station with wireless test function, wherein, described new R-T unit, its working frequency range have covered the transmit frequency band and the reception frequency range of the frequency division duplex system base station of its work.
Utilize above-mentioned base station to carry out the method for wireless test, be characterized in, may further comprise the steps:
The sending and receiving letter local oscillator of a, the new R-T unit of adjustment makes new R-T unit be in the wireless test state; Control its switch is connected with new R-T unit, and former R-T unit is tested, and realizes test function;
B, under the situation that one tunnel former R-T unit damages, adjust the sending and receiving letter local oscillator of new R-T unit, make new R-T unit be in the state that damages R-T unit; Control its switch makes new R-T unit be connected with antenna for base station, replaces the R-T unit of damage, realizes backup functionality;
Utilize above-mentioned base station to carry out the method for wireless test, be characterized in, may further comprise the steps:
The sending and receiving letter local oscillator of a, the new R-T unit of adjustment makes new R-T unit be in the base station transceiver state; Control its switch makes new R-T unit be connected with antenna for base station, realizes the base station transceiver telecommunication function, the expanding system capacity;
When b, channel allocation, priority allocation is given former R-T unit, and next distributes to new R-T unit;
C, the new R-T unit free time, adjust the sending and receiving letter local oscillator of new R-T unit, make new R-T unit be in the wireless test state; Control its switch selects one tunnel former R-T unit to be connected with new R-T unit, and former R-T unit is tested, and realizes test function.
Because the present invention has adopted above technical scheme, on the basis of tested R-T unit, increased by one and both can realize wireless test function, the new R-T unit that can realize the base station transceiver telecommunication function again both can be connected the new R-T unit of arbitrary R-T unit and this with one, the diverter switch that this new R-T unit can be connected with antenna for base station again, the R-T unit and the wireless test device of base station are united two into one, both can realize wireless test function, solve the not high problem of conventional wireless testing apparatus utilance again.This new equipment can be realized the backup functionality to tested R-T unit, improves the reliability of system.Perhaps directly play the function of R-T unit, the capacity of expanding system.
Concrete feature of the present invention and performance are further described by following embodiment and accompanying drawing thereof.
Fig. 1 is the schematic diagram of frequency division duplex system frequency range.
Fig. 2 is the relation of R-T unit and wireless test device in the prior art base station.
Fig. 3 is an architecture of base station schematic diagram of the present invention.
Fig. 4 is the structural representation of new R-T unit in the base station of the present invention.
See also Fig. 3, this is an architecture of base station schematic diagram of the present invention.The frequency-division duplex wireless system base station that the present invention has wireless test function comprises the tested R-T unit 202 of multichannel, comprises that also the new R-T unit 201 and of a band radio detection function switches switch 203.The new R-T unit of described a plurality of detected R-T unit and band radio detection function is connected with diverter switch respectively, by the diverter switch selection with new R-T unit and detected R-T unit be connected or with being connected of antenna for base station; Signal is from the transmitting terminal emission of tested R-T unit, from the receiving terminal reception of new R-T unit, from the transmitting terminal emission of new R-T unit, from the receiving terminal reception of tested R-T unit.The new R-T unit 201 of base station of the present invention has such characteristics, and its receiver all works in identical frequency range with sender, and this frequency range has covered the transmit frequency band of this frequency division duplex system base station and received frequency range.The reception frequency range and the transmit frequency band of new R-T unit 201 are frequency range A+ frequency range B.From working frequency range, new R-T unit 201 can carry out the function of wireless test like this, may play the function of former base station R-T unit again.
The structure of new R-T unit as shown in Figure 4.Receiver comprises: the end 301 of collecting mail, first amplifier 302 of collecting mail, first filter 303 of collecting mail, collection of letters local oscillator 304, collection of letters frequency mixer 305, second amplifier 306 of collecting mail, collect mail second filter 307, analog to digital converter 308 are linked in sequence; Sender comprises: digital to analog converter 316, first filter 315 of posting a letter, first amplifier 314 of posting a letter, the local oscillator of posting a letter 312, the frequency mixer 313 of posting a letter, second filter 311 of posting a letter, post a letter second amplifier 310, transmitting end 309 are linked in sequence.Receiver, is delivered to collection of letters frequency mixer 305 and is carried out mixing through the processing of first amplifier 302 of collecting mail, first filter 303 of collecting mail from end 301 received RF signals of collecting mail, and is downconverted into baseband signal.Local oscillator 304 decision down-conversion scopes.Baseband signal send analog to digital converter 308 to convert digital signal to through second amplifier 306 of collecting mail, second filter 307 of collecting mail.At sender, digital signal converts base-band analog signal to through digital to analog converter 316, and this signal is delivered to the frequency mixer 313 of posting a letter and carried out mixing through the processing of first filter 315 of posting a letter, first amplifier 314 of posting a letter, and is up-converted into radiofrequency signal.Local oscillator 312 decision up-conversion scopes.Radiofrequency signal is launched from transmitting end 309 through second filter 311 of posting a letter, second amplifier 310 of posting a letter.The working frequency range of end 301, first amplifier 302 of collecting mail, the collection of letters first filter 303, local oscillator 304, frequency mixer 305, transmitting end 309, second amplifier 310 of posting a letter, post a letter second filter 311, local oscillator 312, frequency mixer 313 of will collecting mail in the new R-T unit 201 is designed to frequency range A+ frequency range B.Adjust the output frequency of local oscillator 304, local oscillator 312, the radiofrequency signal of different frequency can be converted to baseband signal.For receiver, adjust local oscillator 304, the radiofrequency signal of frequency range B can be converted to baseband signal, promptly realize test function; Also the radiofrequency signal of frequency range A can be converted to baseband signal, promptly realize base station receiver function.For sender, adjust local oscillator 312, the radiofrequency signal of frequency range A promptly can be realized test function; Also baseband signal can be converted to the radiofrequency signal of frequency range B, promptly realize base station sender function.
The effect of diverter switch 203 is as follows in the base station of the present invention:
1. the receiver of arbitrary R-T unit 202 sender with new R-T unit 201 can be connected, the sender of arbitrary R-T unit 202 is connected with the new receiver of R-T unit 201.Promptly can realize test to this R-T unit 202.
2. the receiver of new R-T unit 201 can be connected with antenna for base station with sender.Like this, new R-T unit 201 is consistent with the effect of common R-T unit 202.New R-T unit 201 can be used as the backup of R-T unit 202, improves the base station system reliability; Also can be used as the R-T unit of expansion, the extended base station power system capacity.
Adopt base station of the present invention to test detected R-T unit in both cases, a kind of be system reliability than the situation higher, that Capacity Ratio is bigger under, adopt the method for test earlier, back backup; Another kind is that adopting increases power system capacity, the method for testing again earlier under the relatively nervous situation of power system capacity.The base station of corresponding different model, the standard of its amount of capacity is different.Even use in different areas the base station of same model, the standard of its amount of capacity also is different.For example, for gsm system, when the base station is that it can support 23 conversations simultaneously when taking the 1-1-1 configuration.If use in the busy section of town, city, the user is more concentrated, at this moment, the capacity of the base station comparison anxiety that just seems, can be used as the expansion capacity earlier this moment with the new R-T unit in the base station of the present invention, and make the base station can support 31 conversations simultaneously, satisfied user's demand.And at dead of night, the caller is less, and the capacity of the original R-T unit in base station is (Capacity Ratio is bigger) enough, and the new R-T unit of base station is just as testing equipment at this moment.If in the rural area, the caller is just less at ordinary times, and the capacity of the original R-T unit in base station is (relative capacity is bigger) enough, this moment the base station new R-T unit just as testing equipment, and do the backup of original R-T unit.Specifically, of the present invention can being undertaken by following method step:
First kind, system reliability than the situation higher, that Capacity Ratio is bigger under, its method step is:
1. adjust the collection of letters local oscillator 304 of new R-T unit 201, the local oscillator 312 of posting a letter, make new R-T unit 201 be in the wireless test state; Control its switch 203 is connected with new R-T unit 201, and tested R-T unit 202 is tested, and realizes test function;
2. under the situation that one road tested R-T unit 202 damages, adjust the collection of letters local oscillator 304 of new R-T unit 201, the local oscillator 312 of posting a letter, make new R-T unit 201 be in the state that damages R-T unit 202.Control its switch 203 makes new R-T unit 201 be connected with antenna for base station, replaces the R-T unit 202 of damage, realizes backup functionality.
Second kind, to carry out under relatively more nervous in power system capacity, as to need the increase power system capacity situation, its step is as follows:
1. adjust the collection of letters local oscillator 304 of new R-T unit 201, the local oscillator 312 of posting a letter, make new R-T unit 201 be in the base station transceiver state; Control its switch 203 makes new R-T unit 201 be connected with antenna for base station, realizes the base station transceiver telecommunication function, the expanding system capacity;
2. during channel allocation, priority allocation is given tested R-T unit 202, and next distributes to new R-T unit 201.Like this, if the channel of this base station has the free time, then necessarily appear on the new R-T unit 201.
3. new 201 free time of R-T unit, adjust the collection of letters local oscillator 304 of new R-T unit 201, the local oscillator 312 of posting a letter, make new R-T unit 201 be in the wireless test state; Control its switch 203 selects one road tested R-T unit 202 to be connected with new R-T unit 201, and this tested R-T unit 202 is tested; Realize test function.
Invention had both had test function, the function that has former base station R-T unit again, when former R-T unit damages, play the R-T unit backup, or directly be used as R-T unit and use, the expanding system capacity utilizes idle channel to carry out test job, improves the utilance of wireless test device.
Claims (5)
1, the frequency-division duplex wireless system base station that has wireless test function, comprise a plurality of detected R-T units, it is characterized in that, the new R-T unit and one that also comprises a band radio detection function switches switch, the new R-T unit of described a plurality of detected R-T unit and band radio detection function is connected with diverter switch respectively, by the diverter switch selection with new R-T unit and detected R-T unit be connected or with being connected of antenna for base station; Signal is from the transmitting terminal emission of tested R-T unit, from the receiving terminal reception of new R-T unit; From the transmitting terminal emission of new R-T unit, from the receiving terminal reception of tested R-T unit.
2, the frequency-division duplex wireless system base station with wireless test function according to claim 1, it is characterized in that, comprise receiver and sender, receiver comprises: the end of collecting mail, first amplifier of collecting mail, first filter of collecting mail, collection of letters local oscillator, collection of letters frequency mixer, second amplifier of collecting mail, collect mail second filter, analog to digital converter are linked in sequence; Sender comprises: digital to analog converter, first filter of posting a letter, first amplifier of posting a letter, the local oscillator of posting a letter, the frequency mixer of posting a letter, second filter of posting a letter, post a letter second amplifier, transmitting end are linked in sequence.
3, the frequency-division duplex wireless system base station with wireless test function according to claim 1 and 2 is characterized in that, described new R-T unit, its working frequency range have covered the transmit frequency band and the reception frequency range of the frequency division duplex system base station of its work.
4, utilize the described base station of claim 1 to carry out the method for wireless test, it is characterized in that, may further comprise the steps:
The sending and receiving letter local oscillator of a, the new R-T unit of adjustment makes new R-T unit be in the wireless test state; Control its switch is connected with new R-T unit, and former R-T unit is tested, and realizes test function;
B, under the situation that one tunnel former R-T unit damages, adjust the sending and receiving letter local oscillator of new R-T unit, make new R-T unit be in the state that damages R-T unit; Control its switch makes new R-T unit be connected with antenna for base station, replaces the R-T unit of damage, realizes backup functionality;
5, utilize the described base station of claim 1 to carry out the method for wireless test, it is characterized in that, may further comprise the steps:
The sending and receiving letter local oscillator of a, the new R-T unit of adjustment makes new R-T unit be in the base station transceiver state; Control its switch makes new R-T unit be connected with antenna for base station, realizes the base station transceiver telecommunication function, the expanding system capacity;
When b, channel allocation, priority allocation is given former R-T unit, and next distributes to new R-T unit;
C, the new R-T unit free time, adjust the sending and receiving letter local oscillator of new R-T unit, make new R-T unit be in the wireless test state; Control its switch selects one tunnel former R-T unit to be connected with new R-T unit, and former R-T unit is tested, and realizes test function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127602 CN1119911C (en) | 2000-11-28 | 2000-11-28 | Base station with wireless test function for frequency-division duplex wireless system and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127602 CN1119911C (en) | 2000-11-28 | 2000-11-28 | Base station with wireless test function for frequency-division duplex wireless system and its test method |
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| Publication Number | Publication Date |
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| CN1355663A true CN1355663A (en) | 2002-06-26 |
| CN1119911C CN1119911C (en) | 2003-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00127602 Expired - Fee Related CN1119911C (en) | 2000-11-28 | 2000-11-28 | Base station with wireless test function for frequency-division duplex wireless system and its test method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382628C (en) * | 2004-12-22 | 2008-04-16 | 中兴通讯股份有限公司 | Equipment for testing switch between base stations for mobile terminals |
| CN101330703B (en) * | 2007-06-18 | 2011-07-06 | 大唐移动通信设备有限公司 | Method, system and apparatus for detecting base station performance |
| CN104184490A (en) * | 2014-09-13 | 2014-12-03 | 中国电子科技集团公司第四十一研究所 | FDD-LTE terminal signal transmitting device |
| CN114665987A (en) * | 2022-03-22 | 2022-06-24 | 江苏肯立科技股份有限公司 | Antenna health management system based on artificial intelligence |
-
2000
- 2000-11-28 CN CN 00127602 patent/CN1119911C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382628C (en) * | 2004-12-22 | 2008-04-16 | 中兴通讯股份有限公司 | Equipment for testing switch between base stations for mobile terminals |
| CN101330703B (en) * | 2007-06-18 | 2011-07-06 | 大唐移动通信设备有限公司 | Method, system and apparatus for detecting base station performance |
| CN104184490A (en) * | 2014-09-13 | 2014-12-03 | 中国电子科技集团公司第四十一研究所 | FDD-LTE terminal signal transmitting device |
| CN114665987A (en) * | 2022-03-22 | 2022-06-24 | 江苏肯立科技股份有限公司 | Antenna health management system based on artificial intelligence |
| CN114665987B (en) * | 2022-03-22 | 2024-04-05 | 江苏肯立科技股份有限公司 | Antenna health management system based on artificial intelligence |
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| Publication number | Publication date |
|---|---|
| CN1119911C (en) | 2003-08-27 |
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Granted publication date: 20030827 Termination date: 20161128 |