CN102045738A - Interference detection method and device thereof - Google Patents
Interference detection method and device thereof Download PDFInfo
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- CN102045738A CN102045738A CN2009101798817A CN200910179881A CN102045738A CN 102045738 A CN102045738 A CN 102045738A CN 2009101798817 A CN2009101798817 A CN 2009101798817A CN 200910179881 A CN200910179881 A CN 200910179881A CN 102045738 A CN102045738 A CN 102045738A
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Abstract
The invention discloses an interference detection method and a device thereof. The method comprises the following steps: carrying out synchronous downlink code matching calculation on receiving signals in an uplink pilot frequency time slot of a base station; and determining whether interference exists according to whether synchronous downlink codes exist in the matched and calculated receiving signals. According to the invention, the maintainability of the equipment is enhanced and the positioning efficiency of network performance problems is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of interference detection method and device.
Background technology
TD SDMA inserts (Time Division-Synchronous Code Division Multiple Access, abbreviating TD-SCDMA as) up access mechanism in the system is by uplink pilot time slot (the Uplink Pilot Time Slot of terminal at the TD-SCDMA frame structure, abbreviate UpPTS as) go up that emission uplink synchronization (SYNC-UL) sign indicating number realizes, behind the terminal emission SYNC-UL sign indicating number, the base station is carried out the sign indicating number detection to received signal in the UpPTS time slot, to determine whether terminal has entered joining procedure.
Fig. 1 is the frame structure schematic diagram according to the TD-SCDMA system of correlation technique, as shown in Figure 1, before the UpPTS time slot descending down link pilot timeslot (Downlink Pilot Time Slot, abbreviate DwPTS as), the base station is launched SYNC-DL (DL synchronization) sign indicating number and is carried out down-going synchronous for terminal on DwPTS.For TD-SCDMA base station group more among a small circle; because having protection time slot (GP) between DwPTS time slot and the UpPTS time slot protects with signal time delay; so the signal that launch on descending DwPTS time slot a certain base station generally can not produce too big time delay and fall in the up UpPTS time slot of other base stations; that is, DwPTS time slot between the TD-SCDMA base station and UpPTS time slot can not interfere with each other generally speaking.
But, TD-SCDMA base station group for large-scale network-estabilishing, the downstream signal of the TD-SCDMA base station that some high station sets up is relayed distance and is reached tens of kilometers, can fall into the UpPTS time slot of tens kilometers other outer base stations behind the signal generation long time delay of the DwPTS time slot emission of these overhead base stations of TD-SCDMA, the up UpPTS time slot of Yuan Chu TD-SCDMA base station will be full of high-intensity interference like this, influence the up access performance of these base stations.When serious, the up UpPTS of these base stations is influenced by the interference of hard intensity and loses the access capability of SYNC-UL sign indicating number.But, not relevant at present detection and warning technology.
Summary of the invention
Cause locating the problem of relevant interference at detecting the interference that the base station occurs at UpPTS in the correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of Interference Detection scheme, one of to address the above problem at least.
To achieve these goals, according to an aspect of the present invention, provide a kind of interference detection method.
Interference detection method according to the present invention comprises: the received signal in the uplink pilot time slot of base station is carried out DL synchronization sign indicating number coupling calculate; According to whether existing the DL synchronization sign indicating number to determine whether there is interference in the received signal in the coupling calculating received signal.
Preferably, after there was interference in definite received signal, said method also comprised: the interference that exists is alarmed.
Preferably, alarm and comprise: the information of calculating the DL synchronization sign indicating number that exists in the received signal; Carry information at the warning information that is used to alarm, and send a warning message and alarm, wherein, it is one of following that information comprises at least: signal strength signal intensity, arrive delay positions, arrive arrival bearing.
Preferably, the received signal in the uplink pilot time slot of base station being carried out the calculating of DL synchronization sign indicating number coupling comprises: use each DL synchronization sign indicating number to mate calculating to received signal respectively; If when the coupling result of calculation of a DL synchronization sign indicating number surpasses the threshold value of this DL synchronization sign indicating number correspondence, then there is this DL synchronization sign indicating number in the received signal.
Preferably, threshold value is 6 to 10dB.
Preferably, alarm and comprise: carry the sign of the DL synchronization sign indicating number that received signal exists at the warning information that is used for alarming, and send a warning message and alarm.
To achieve these goals, according to a further aspect in the invention, provide a kind of interference detecting apparatus.
Interference detecting apparatus according to the present invention comprises: computing unit is used for that the received signal of the uplink pilot time slot of base station is carried out DL synchronization sign indicating number coupling and calculates; Whether determining unit is used for calculating received signal according to coupling and exists the DL synchronization sign indicating number to determine whether there is interference in the received signal.
Preferably, said apparatus also comprises: Alarm Unit is used for determining that in determining unit received signal exists under the situation about disturbing, and alarms the interference that exists.
Preferably, said apparatus also comprises: the warning information computing unit, be used for calculating the information of the DL synchronization sign indicating number that received signal exists, and carry information at the warning information that Alarm Unit is used to alarm, wherein, information comprises one of following at least: signal strength signal intensity, arrive delay positions, arrive arrival bearing.
Preferably, Alarm Unit also is used for carrying at the warning information that is used to alarm the sign of the DL synchronization sign indicating number that received signal exists.
By the present invention, employing is carried out DL synchronization sign indicating number coupling to the received signal in the uplink pilot time slot of base station and is calculated, solved the problem that can't detect the interference that the base station occurs at UpPTS in the correlation technique and cause to locate relevant interference and can't alarm interference, and then strengthened the maintainability of equipment and improved the location efficiency of network performance problems.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the frame structure schematic diagram according to the TD-SCDMA system of correlation technique;
Fig. 2 is the flow chart according to the interference detection method of the embodiment of the invention;
Fig. 3 is according to the base station ascending time slot interference detection method of the embodiment of the invention and the flow chart of alarm method;
Fig. 4 is the structured flowchart according to the interference detecting apparatus of the embodiment of the invention;
Fig. 5 is the interference detecting apparatus preferred construction block diagram according to the embodiment of the invention.
Embodiment
Functional overview
The embodiment of the invention provides a kind of interference detection method, further, also discloses a kind of alarm method, is used for solving interfering with each other problem at issuable DwPTS time slot of TD-SCDMA system (but being not limited to) large-scale network-estabilishing and UpPTS time slot.The treatment principle of this scheme is as follows: the received signal in the uplink pilot time slot of base station is carried out DL synchronization sign indicating number coupling calculate; Coupling calculates and has the DL synchronization sign indicating number in the received signal; Alarm.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In following examples, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Method embodiment
According to embodiments of the invention, a kind of interference detection method is provided, Fig. 2 is the flow chart according to the interference detection method of the embodiment of the invention, as shown in Figure 2, this flow process comprises the steps:
Step S202 carries out DL synchronization sign indicating number coupling to the received signal in the uplink pilot time slot of base station and calculates;
Whether step S204 calculates according to coupling and to exist the DL synchronization sign indicating number to determine whether there is interference in the received signal in the received signal.
Preferably, after step S204, can also alarm the interference that exists.
Preferably, alarm and to carry the sign of the DL synchronization sign indicating number that received signal exists at the warning information that is used for alarming, and send a warning message and alarm; Preferably, can also calculate the information of the DL synchronization sign indicating number that exists in the received signal, carry information at the warning information that is used to alarm, then, send a warning message and alarm, perhaps, export these alarm relevant informations, wherein, the information of DL synchronization sign indicating number can comprise one of following at least: signal strength signal intensity, arrive delay positions, arrive arrival bearing.
In step S202, can use each DL synchronization sign indicating number to mate calculating to received signal respectively; When if the coupling result of calculation of certain DL synchronization sign indicating number surpasses the threshold value of this DL synchronization sign indicating number correspondence, then there is this DL synchronization sign indicating number in the received signal, preferably, threshold value is 6 to 10dB.
Preferably, in step S206, alarm and to comprise this SYNC-DL sign indicating number of output, produce the base station ascending time slot and disturb alarm.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Fig. 3 is that as shown in Figure 3, this method may further comprise the steps according to the base station ascending time slot interference detection method of the embodiment of the invention and the flow chart of alarm method:
Step S302 carries out SYNC-DL sign indicating number coupling to the received signal in the up UpPTS time slot in base station;
There is certain descending SYNC-DL sign indicating number in step S304 if match in the up received signal of base station, then export this SYNC-DL sign indicating number, produces the base station and inserts and disturb alarm;
Step S306, to detected SYNC-DL yardage calculate this SYNC-DL sign indicating number signal strength signal intensity, arrive delay positions, arrival bearing's (Direction of Arrival abbreviates DOA as), export these alarm relevant informations.
The SYNC-DL of TD-SCDMA system has 32, numbers with SYNC-DL ID0 to 31.So in step S102, the received signal in the up UpPTS time slot is mated calculating respectively, each SYNC-DL sign indicating number is all calculated matching result with these 32 SYNC-DL sign indicating numbers.
In step S304, judge according to the intensity of each SYNC-DL matching result being carried out thresholding, during greater than certain thresholding, with the SYNC-DL ID output of this SYNC-DL correspondence as alarming.The intensity decision threshold of matching result can be set to 6～10dB.
In step S306, can determine the in-position of a certain SYNC-DL sign indicating number with the method for displacement relevant matches; After determining the in-position of SYNC-DL sign indicating number, this locational signal is carried out signal strength signal intensity calculate the signal strength signal intensity that can obtain this SYNC-DL sign indicating number; If the base station has been equipped with array antenna, for example, common 6 antennas or 8 antenna linear arrays during the TD-SCDMA base station is equipped with at present, matching result and basis on comprehensive each antenna are talked about known (Grid of Beams publicly, abbreviate GOB as) angle computation method, can calculate the arrival bearing (DOA) of this SYNC-DL sign indicating number.Utilize these information can help the network maintenance staff to locate and insert the azimuth-range of disturbing the source.
By the foregoing description, after the base station output UP time slot interference alarm that has interference phenomenon and exporting relevant warning information,, the network maintenance staff provides information for utilizing these INFORMATION DISCOVERYs, location and solution interference problem.
Device embodiment
According to embodiments of the invention, a kind of interference detecting apparatus is provided, this device is corresponding to above-mentioned method embodiment, the explanation of having carried out in method embodiment does not repeat them here, be the explanation that the concrete unit in this device is carried out below, Fig. 4 is the structured flowchart according to the interference detecting apparatus of the embodiment of the invention, as shown in Figure 4, this device comprises: computing unit 42, determining unit 44 are described in detail this device below.
Fig. 5 is the interference detecting apparatus preferred construction block diagram according to the embodiment of the invention, and as shown in Figure 5, this device also comprises: Alarm Unit 50, warning information computing unit 52 are described in detail this below.
Preferably, computing unit 42 is used for using respectively each DL synchronization sign indicating number to mate calculating to received signal; Determining unit 44 is used to determine have this DL synchronization sign indicating number in the received signal under the situation of coupling result of calculation above the threshold value of this DL synchronization sign indicating number correspondence of each DL synchronization sign indicating number; Alarm Unit 50 also is used for carrying at the warning information that is used to alarm the sign (for example, the ID of DL synchronization sign indicating number) of the DL synchronization sign indicating number that received signal exists.
Preferably, as shown in Figure 5, this device also comprises: unit 54 is set is connected to determining unit 44, this unit is used for above-mentioned threshold value and is set to 6 to 10dB.
In sum, pass through the above embodiment of the present invention, after the base station output access interference alarm that has interference phenomenon and exporting relevant warning information, the network maintenance staff just can find that according to these information which base station is disturbed, disturb the source from where, strengthened the maintainability of TD-SCDMA equipment and improved the location efficiency of network performance problems.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an interference detection method is characterized in that, comprising:
Received signal in the uplink pilot time slot of base station is carried out DL synchronization sign indicating number coupling to be calculated;
According to whether existing the DL synchronization sign indicating number to determine whether there is interference in the described received signal in the described received signal of coupling calculating.
2. method according to claim 1 is characterized in that, after determining that there is interference in described received signal, described method also comprises: the interference that exists is alarmed.
3. method according to claim 2 is characterized in that, alarms to comprise:
Calculate the information of the described DL synchronization sign indicating number that exists in the described received signal;
Carry described information at the warning information that is used to alarm, and send described warning information and alarm, wherein, it is one of following that described information comprises at least: signal strength signal intensity, arrive delay positions, arrive arrival bearing.
4. method according to claim 1 is characterized in that, the described received signal in the described uplink pilot time slot of described base station is carried out the calculating of DL synchronization sign indicating number coupling comprise:
Use each DL synchronization sign indicating number that described received signal is mated calculating respectively;
If when the coupling result of calculation of a DL synchronization sign indicating number surpasses the threshold value of this DL synchronization sign indicating number correspondence, there is this DL synchronization sign indicating number in the then described received signal.
5. method according to claim 4 is characterized in that, described threshold value is 6 to 10dB.
6. according to each described method in the claim 2 to 5, it is characterized in that, alarm and comprise:
Carry the sign of the described DL synchronization sign indicating number that described received signal exists at the warning information that is used for alarming, and send described warning information and alarm.
7. an interference detecting apparatus is characterized in that, comprising:
Computing unit is used for that the received signal of the uplink pilot time slot of base station is carried out DL synchronization sign indicating number coupling and calculates;
Whether determining unit is used for calculating described received signal according to coupling and exists the DL synchronization sign indicating number to determine whether there is interference in the described received signal.
8. device according to claim 7 is characterized in that, also comprises: Alarm Unit is used for determining that in described determining unit described received signal exists under the situation about disturbing, and alarms the interference that exists.
9. device according to claim 8 is characterized in that, also comprises:
The warning information computing unit, be used for calculating the information of the described DL synchronization sign indicating number that described received signal exists, and carry described information at the warning information that described Alarm Unit is used to alarm, wherein, described information comprises one of following at least: signal strength signal intensity, arrive delay positions, arrive arrival bearing.
10. according to Claim 8 or 9 described devices, it is characterized in that described Alarm Unit also is used for carrying at the warning information that is used to alarm the sign of the described DL synchronization sign indicating number that described received signal exists.
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| CN200910179881.7A CN102045738B (en) | 2009-10-19 | 2009-10-19 | Interference detection method and device |
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| CN200910179881.7A CN102045738B (en) | 2009-10-19 | 2009-10-19 | Interference detection method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457897A (en) * | 2011-10-21 | 2012-05-16 | 上海金陵表面贴装有限公司 | Method and device for detecting interference to uplink pilot channel of base station of time division-synchronization code division multiple access (TD-SCDMA) system |
| CN102655650A (en) * | 2012-01-05 | 2012-09-05 | 电信科学技术研究院 | Method and equipment for positioning far-end interference base station |
| WO2012163104A1 (en) * | 2011-09-22 | 2012-12-06 | 华为技术有限公司 | Method of detecting interference base station and base station |
| CN103888951A (en) * | 2012-12-21 | 2014-06-25 | 电信科学技术研究院 | Interference processing method and system in cognitive radio system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972165B (en) * | 2006-12-15 | 2010-12-08 | 华为技术有限公司 | An interference detection method and apparatus |
| CN101242223B (en) * | 2008-03-12 | 2012-03-28 | 北京天碁科技有限公司 | A device and method for detecting interference in uplink pilot channel |
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2009
- 2009-10-19 CN CN200910179881.7A patent/CN102045738B/en active Active
Cited By (13)
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|---|---|---|---|---|
| EP2635089A4 (en) * | 2011-09-22 | 2013-11-27 | Huawei Tech Co Ltd | Method of detecting interference base station and base station |
| WO2012163104A1 (en) * | 2011-09-22 | 2012-12-06 | 华为技术有限公司 | Method of detecting interference base station and base station |
| CN103024765A (en) * | 2011-09-22 | 2013-04-03 | 华为技术有限公司 | Method for detecting interference base station and base station |
| EP2635089A1 (en) * | 2011-09-22 | 2013-09-04 | Huawei Technologies Co., Ltd. | Method of detecting interference base station and base station |
| US8565215B2 (en) | 2011-09-22 | 2013-10-22 | Huawei Technologies Co., Ltd. | Method and base station for detecting interfering base station |
| CN103024765B (en) * | 2011-09-22 | 2015-07-29 | 华为技术有限公司 | A kind of method and base station detecting interference base station |
| CN104994533A (en) * | 2011-09-22 | 2015-10-21 | 华为技术有限公司 | Interference base station detection method and base station |
| CN104994533B (en) * | 2011-09-22 | 2018-10-19 | 华为技术有限公司 | It is a kind of detection interference base station method and base station |
| CN102457897A (en) * | 2011-10-21 | 2012-05-16 | 上海金陵表面贴装有限公司 | Method and device for detecting interference to uplink pilot channel of base station of time division-synchronization code division multiple access (TD-SCDMA) system |
| CN102655650A (en) * | 2012-01-05 | 2012-09-05 | 电信科学技术研究院 | Method and equipment for positioning far-end interference base station |
| CN102655650B (en) * | 2012-01-05 | 2015-05-06 | 电信科学技术研究院 | Method and equipment for positioning far-end interference base station |
| CN103888951A (en) * | 2012-12-21 | 2014-06-25 | 电信科学技术研究院 | Interference processing method and system in cognitive radio system |
| CN103888951B (en) * | 2012-12-21 | 2017-06-23 | 电信科学技术研究院 | A kind of interference processing method and system in cognitive radio system |
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