CN1328922C - Method of optimal system reconfiguration after intelligent antenna array element failure - Google Patents
Method of optimal system reconfiguration after intelligent antenna array element failure Download PDFInfo
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- CN1328922C CN1328922C CNB2004100093290A CN200410009329A CN1328922C CN 1328922 C CN1328922 C CN 1328922C CN B2004100093290 A CNB2004100093290 A CN B2004100093290A CN 200410009329 A CN200410009329 A CN 200410009329A CN 1328922 C CN1328922 C CN 1328922C
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Abstract
The present invention relates to a method for the re-optimal allocation of a system after the failure of smart antenna array elements, which comprises: smart antenna base stations which form coherent array channels are arranged; base station systems operate and automatically detect the working states of sending and receiving channels in the array channels, and the working states comprise the generation of upstream and downstream channel detection signals, the measurement of channel response signals and the detection of ineffective upstream and downstream channel detection signals; the systems are configured again according to the existing conditions, and the performance is optimized. For a smart antenna base station which is realized by the method provided by the present invention, when array elements fail, as long as hardware failure does not influence all resources which make the sector normally work, the systems can still independently detect the working states of the array elements, the systems are reconfigured, the performance is optimized, and the communication function of the systems is maintained.
Description
Technical field
The present invention relates to the method that the back system reconfigures that lost efficacy of array element in the field of mobile communication antenna system array channel, particularly relate to a kind of be applicable to the equal space line array and evenly after the intelligent antenna base station array channel partial failure of circle ring array system system keep a kind of array configurations method of optimal performance.
Background technology
Intelligent antenna base station is by array channel being received and the signal of emission carries out the width of cloth, weighting comes the direction and the shape of control antenna wave beam mutually, to realize directional transmissions and the reception to desired user.Array channel adopts the even circle ring array of omnidirectional's covering or the equal space line array that covers by the sector.The common channel of base station down theaomni-directional transmission in coverage, descending Traffic Channel are then with the direction of lower radio-frequency power directional transmissions to designated user.Smart antenna makes the user obtain optimal performance at different signal environments, reaches the purpose that improves power system capacity by airspace filter, increase coverage distance, reduction co-channel interference.
The up-downgoing passage of intelligent antenna array is up after carrying out channel correcting/and the relative performance of down going channel agrees, and the base station array channel all is used for the processing of uplink and downlink signals.The Processing Algorithm of upward signal has high specific to merge MRC and adaptive algorithm.The emission of down going channel can be configured to multichannel (small-power wave beam forming) emission and the emission of single channel (high-power omnidirectional) selectivity.The antenna system of multichannel small-power configuration (as the even circle ring array of 8 array elements or the equal space line array that covers by the sector), after part array element lost efficacy, before the base station passage did not obtain backup switching or maintenance, the performance of original signal processing method can descend.When antenna system after part array element lost efficacy, as long as hardware fault does not involve the whole resources that make this sector operate as normal, for making system under the work on hand condition, realize optimum performance, just need the operating state of array channel be detected and reconfigure, with the communication function of keeping intelligent base station and be issued to optimal performance when precondition.Therefore the detection of smart antenna array element inefficacy and system reconfigure and seem extremely important in antenna systems.
Summary of the invention
Technical problem solved by the invention is to propose a kind of smart antenna array element inefficacy back system method of allocation optimum again, intelligent antenna base station can detect the operating state of each array element automatically, keeps the network function in intelligent base station communication function and the coverage when the part array element of system lost efficacy.
In order to reach the foregoing invention purpose, the invention provides a kind of method that array channel detects and passage reconfigures that is applicable to 8 array elements (the even circle ring array of 8 array elements or the equal space line array that covers by the sector), it comprises the following steps:
(1) setting has the intelligent antenna base station of coherent array channel characteristic, and array channel comprises outer (radio-frequency front-end) unit of indoor (transceiver) of intelligent base station, radio frequency stube cable and aerial array (8 antenna modules, ring array or linear array assembly).Channels designs is received/sent out to each transceiver of base station by 4, two (master/slave) transceivers pass through the interconnected formation 8 phase dry passages of local oscillation signal, main transceiver is connected to the even number antenna (0,2,4,6) of exterior aerial array, is connected to the odd number antenna (1,3,5,7) of exterior aerial array from transceiver;
(2) base station is detected the operating state of transceiver channel automatically, comprises the generation of up-downgoing access detection signal and the measurement of channel response signal, with the up-downgoing channel number that obtains losing efficacy;
(3) again by the existence conditions configuration-system and make best performance.
Particularly, the invention provides a kind of smart antenna array element inefficacy back system method of allocation optimum again, its characteristics are, comprise the steps:
Step 1 is provided with the intelligent antenna base station that constitutes the coherent array passage;
The operating state of transceiver channel in the described array channel is moved, detected automatically to step 2, base station system, comprises the generation of up-downgoing access detection signal and the measurement of channel response signal, detects the up-downgoing channel number that lost efficacy;
Step 3 is pressed the existence conditions configuration-system again, and makes best performance.
The good effect that the present invention can bring is, the intelligent antenna base station that adopts method provided by the invention to realize, when array element lost efficacy, as long as hardware fault does not involve the whole resources that make this sector operate as normal, system still can the operating state of detection array element voluntarily, reconfigure system and make best performance, keep the communication function of system.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 antenna system structure chart of the present invention;
Fig. 2 overall flow figure of the present invention.
Embodiment
Provide embodiments of the invention according to Fig. 1, Fig. 2 below, further specify the inventive method.
Fig. 1 illustrates the structure of the intelligent antenna base station array phase dry passage that has used the inventive method.Mainly comprise the aerial array 100 (spacing of described antenna array is less than a wavelength) that becomes two-way circuit to connect successively, (radio-frequency front-end comprises 8 tunnel downlink power amplifier and up low noise amplifier to outdoor radio-frequency front-end 101, wherein there is the power gain of two-way power amplifier bigger, the 0th, 1 passage of corresponding two transceivers is respectively used during in order to the high-power emission of single channel; Radio-frequency front-end also comprises from the radio-frequency channel signal of transceiver and front-end circuit non-to seasonable radio-frequency channel change-over circuit, in order to lost efficacy flexible configuration when occurring in two transceivers of array element), feeder cable 102, control cable 103 (control signal of transmission radio-frequency channel change-over circuit), 8 passages relevant transceiver 104, baseband processing unit (comprising the passage measuring ability) 105 and base station main control unit 106.The relevant transceiver 104 of 8 above-mentioned passages by 2 independently 4 passage transceivers forms, each transceiver comprises 4 receivers and 4 senders, the local oscillation signal of two transceivers connected mode that becomes to be concerned with.
Fig. 2 is the implementing procedure of the inventive method, comprising:
Step 201, beginning;
Step 202 at first is provided with the intelligent antenna base station that constitutes the coherent array passage, and characteristics are: the transceiver in the array channel is by 8 relevant transceiver channel designs, and array is the even ring array of omnidirectional's covering or the uniform line-array that covers by the sector;
Step 203 in the base station system normal course of operation, starts channel status measuring ability module in real time, reporting base station main control unit when the base station exists array element to lose efficacy, and close the relevant radio-frequency power supply of inefficacy array element;
Step 204, the base station main control unit selects concrete channel arrangement scheme and method for processing baseband signal to make system reach performance the best according to the quantity and the channel number number of inefficacy array element;
Step 205 finishes.
Above-mentioned the inventive method is in the base station system normal course of operation, detects in real time and reports its step of passage operating state to comprise:
The first step, the passage stube cable detects: after setting up intelligent antenna base station, by the corresponding one by one state that enables to judge with power detection indoor and outdoor corresponding unit stube cable to each passage indoor section (sender) and outdoor radio-frequency front-end (power amplifier).
Second step, the transmission channel underpower detects: by I, the Q signal in each sender base band input normal amplitude, measure the peak power output of 8 passages, this passage underpower of decidable is exported or is broken down during greater than a certain value with the ratio of the transmitting power of each passage.
The 3rd step, the receive path muting sensitivity detects: beacon antenna is sent out a rated power detection signal, in each receiver I, Q measurement of output end signal amplitude, the ratio of maximum wherein and each channel receiving signal amplitude during greater than a certain value this channel sensitivity of decidable low or break down.
In the 4th step, whether statistics up-downgoing passage has inefficacy, if any the up-downgoing channel number number that reports inefficacy.
Described system allocation optimum array channel again is meant that system that it(?) still can derate when having array element to lose efficacy keeps in communication and is being issued to optimum when precondition, and its process comprises:
The first step determines whether the up/down going channel that lost efficacy belongs to same transceiver.The bay of single transceiver correspondence is at first by strange (1,3,5, No. 7 antenna), idol (0,2,4,6) number antenna fixed configurations, referring to Fig. 1.
Second step, when the array element that lost efficacy is in same transceiver and system and is the uniform line-array structure, then close the transceiver and the radio-frequency (RF) front-end circuit power supply of this inefficacy, system uses another transceiver to be configured to uniform 4 array element array channels, twice when this moment, array element distance was 8 array elements, base band down beam shaping algorithm is undertaken by 4 array element even linear arrays, and the base station reports concrete array element Failure Alarm signal by network simultaneously;
When the array element that lost efficacy when to be in same transceiver and system be even ring array structure, then close the pairing receipts of the array element/sender circuit power and the radio-frequency (RF) front-end circuit power supply of inefficacy, system dynamics is configured to many array element array channel of 5-7 array element, base band down beam shaping algorithm is undertaken by the ring array of many array elements, and the base station reports concrete array element Failure Alarm signal by network simultaneously;
The 3rd step, occur in the receiver of two transceivers and inefficacy and sender number less than 4 o'clock as the array element that lost efficacy, then close the receiver and the sender circuit power of inefficacy passage corresponding in two transceivers, system uses the radio-frequency channel change-over circuit of radio-frequency front-end, the equal space line array passage that two transceiver flexible configuration become an even circle ring array of 4 array elements that disposes by even number or odd number antenna or sector to cover, base band down beam shaping algorithm is undertaken by the ring array/linear array structure of 4 array elements.Perhaps downlink dedicated channels is launched according to the down beam shaping algorithm by 4 array element ring array/linear arrays, and descending common channel is according to originally reconfiguring single channel high-power launch of array channel process in the 4th step; The base station reports concrete array element Failure Alarm signal by network simultaneously.
The 4th step, when according to originally reconfiguring the 3rd in array channel process step can not be configured to even 4 array channels the time, the normal sender of then descending selection cooperates a down going channel of formation and carries out high-power single channel emission with radio-frequency front-end and radio-frequency channel change-over circuit thereof, up then the selection carried out the MRC processing less than 4 normal passages that receive, to keep the communication function of system.And report warning message.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
1, a kind of smart antenna array element back system method of allocation optimum again that lost efficacy is characterized in that, comprises the steps:
Step 1 is provided with the intelligent antenna base station that constitutes the coherent array passage;
The operating state of transceiver channel in the described array channel is moved, detected automatically to step 2, base station system, comprises the generation of up-downgoing access detection signal and the measurement of channel response signal, detects the up-downgoing channel number that lost efficacy;
Step 3, select optimum array channel configuration and base band signal process to make the systematic function optimum according to the quantity of inefficacy array element and channel number number, still can derate when optimum array channel configuration refers to have array element to lose efficacy in system keep in communication and be issued to optimum working as precondition.
2, the smart antenna array element according to claim 1 back system method of allocation optimum again that lost efficacy is characterized in that in step 1, the setting up procedure of described intelligent antenna base station comprises:
Two-way circuit connects aerial array, radio-frequency front-end, radio frequency stube cable, 8 passages relevant transceiver, the baseband processing unit with passage measuring ability module and base station main control unit successively;
It is the even ring array of omnidirectional's covering or the uniform line-array that covers by the sector that aerial array is set.
3, the smart antenna array element according to claim 2 back system method of allocation optimum again that lost efficacy, it is characterized in that, independently 4 passage master transceivers and one form from transceiver the relevant transceiver of described 8 passages by one, interconnected formation 8 phase dry passages by local oscillation signal, wherein main transceiver is connected to the even number antenna (0,2,4,6) of aerial array, is connected to the odd number antenna (1,3,5,7) of aerial array from transceiver.
4, the smart antenna array element according to claim 2 back system method of allocation optimum again that lost efficacy is characterized in that described setting up procedure also comprises:
8 tunnel downlink power amplifier and up low noise amplifier are set in described radio-frequency front-end, wherein have the power gain of two-way amplifier bigger, the 0th, 1 passage of corresponding two transceivers is respectively used during in order to the high-power emission of single channel.
5, according to systems after claim 2 or the 4 described smart antenna array elements inefficacies method of allocation optimum again, it is characterized in that described setting up procedure also comprises:
In described radio-frequency front-end, be provided with comprise from radio-frequency channel signal and the front-end circuit of transceiver non-to seasonable radio-frequency channel change-over circuit, the flexible configuration when occurring in two transceivers in order to the array element inefficacy.
6, the smart antenna array element according to claim 2 back system method of allocation optimum again that lost efficacy, it is characterized in that, in step 2, in the base station system normal course of operation, start channel status measuring ability module in real time, reporting base station main control unit when existing array element to lose efficacy in the base station, and close the relevant radio-frequency power supply of inefficacy array element.
7, the smart antenna array element according to claim 6 back system method of allocation optimum again that lost efficacy is characterized in that, the detection in the step 2 and report process to comprise the steps:
The passage stube cable detects: after setting up intelligent antenna base station, by the corresponding one by one state that enables to judge with power detection the corresponding unit stube cable of transceiver and radio-frequency front-end;
The transmission channel underpower detects: by I, the Q signal in each sender base band input normal amplitude, measure the peak power output of 8 passages, this passage underpower output of decidable or break down during greater than first predetermined value with the ratio of the transmitting power of each passage;
The receive path muting sensitivity detects: beacon antenna is sent out a rated power detection signal, in each receiver I, Q measurement of output end signal amplitude, the ratio of maximum wherein and each channel receiving signal amplitude during greater than second predetermined value this channel sensitivity of decidable low or break down;
Whether statistics up-downgoing passage has inefficacy, if any the up-downgoing channel number number that reports inefficacy.
8, the smart antenna array element according to claim 2 back system method of allocation optimum again that lost efficacy, it is characterized in that, described allocation optimum array channel is meant that system that it(?) still can derate when having array element to lose efficacy keeps in communication and is being issued to optimum when precondition, and its process comprises:
The first step determines whether the up/down going channel that lost efficacy belongs to same transceiver, and the bay of single transceiver correspondence is at first pressed odd number antenna (1,3,5,7), even number antenna (0,2,4,6) fixed configurations;
Second step, when the array element that lost efficacy is in same transceiver and system and is the uniform line-array structure, then close the transceiver and the radio-frequency (RF) front-end circuit power supply of this inefficacy, system uses another transceiver to be configured to uniform 4 array element array channels, twice when this moment, array element distance was 8 array elements, base band down beam shaping algorithm is undertaken by 4 array element even linear arrays, and the base station reports concrete array element Failure Alarm signal by network simultaneously;
When the array element that lost efficacy when to be in same transceiver and system be even ring array structure, then close the pairing receipts of the array element/sender circuit power and the radio-frequency (RF) front-end circuit power supply of inefficacy, system dynamics is configured to many array element array channel of 5-7 array element, base band down beam shaping algorithm is undertaken by the ring array of many array elements, and the base station reports concrete array element Failure Alarm signal by network simultaneously;
The 3rd step, occur in the receiver of two transceivers and inefficacy and sender number less than 4 o'clock as the array element that lost efficacy, then close the receiver and the sender circuit power of inefficacy passage corresponding in two transceivers, system uses the radio-frequency channel change-over circuit of radio-frequency front-end, two transceiver flexible configuration become a peace even number or odd number antenna and equal space line array passage that the even circle ring array of 4 array elements that disposes or sector cover, and base band down beam shaping algorithm is undertaken by the ring array/linear array structure of 4 array elements; Perhaps downlink dedicated channels is launched according to the down beam shaping algorithm by 4 array element ring array/linear arrays, and descending common channel is according to originally reconfiguring single channel high-power launch of array channel process in the 4th step; The base station reports concrete array element Failure Alarm signal by network simultaneously;
The 4th step, when according to originally reconfiguring the 3rd in array channel process step can not be configured to even 4 array channels the time, the normal sender of then descending selection cooperates a down going channel of formation and carries out high-power single channel emission with radio-frequency front-end and radio-frequency channel change-over circuit thereof, up then the selection carried out the MRC processing less than 4 normal passages that receive, keeping the communication function of system, and report warning message.
9, the smart antenna array element according to claim 2 back system method of allocation optimum again that lost efficacy is characterized in that the spacing of described aerial array is less than a wavelength.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100093290A CN1328922C (en) | 2004-07-13 | 2004-07-13 | Method of optimal system reconfiguration after intelligent antenna array element failure |
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| CNB2004100093290A CN1328922C (en) | 2004-07-13 | 2004-07-13 | Method of optimal system reconfiguration after intelligent antenna array element failure |
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| CN1328922C true CN1328922C (en) | 2007-07-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101145818A (en) * | 2006-09-12 | 2008-03-19 | 中兴通讯股份有限公司 | A broadcast wave bundle shaping method for smart antenna system |
| CN101154976B (en) * | 2006-09-26 | 2011-08-24 | 中兴通讯股份有限公司 | Compensation method for intelligent antenna system after failure of part of channels |
| CN101686075B (en) * | 2008-09-25 | 2012-10-10 | 中兴通讯股份有限公司 | Method for channel degrading, reexamining and upgrading of radio-frequency remote radio unit of base station |
| CN102142869B (en) * | 2010-11-22 | 2014-04-30 | 华为技术有限公司 | Method and device for compensating active antenna failure and active antenna equipment |
| CN105611560A (en) * | 2014-11-25 | 2016-05-25 | 中兴通讯股份有限公司 | Self healing method and self healing device for active antenna system (AAS) |
| CN104794801A (en) * | 2015-05-13 | 2015-07-22 | 恒银金融科技有限公司 | Bijection type ultrasonic module for bank note thickness detection |
| CN108112074B (en) | 2017-05-05 | 2023-07-18 | 中兴通讯股份有限公司 | Information reporting and receiving method and device and computer readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229486B1 (en) * | 1998-09-10 | 2001-05-08 | David James Krile | Subscriber based smart antenna |
| US20030228857A1 (en) * | 2002-06-06 | 2003-12-11 | Hitachi, Ltd. | Optimum scan for fixed-wireless smart antennas |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229486B1 (en) * | 1998-09-10 | 2001-05-08 | David James Krile | Subscriber based smart antenna |
| US20030228857A1 (en) * | 2002-06-06 | 2003-12-11 | Hitachi, Ltd. | Optimum scan for fixed-wireless smart antennas |
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