CN107801199A - A kind of methods, devices and systems of locating interference source cell - Google Patents
A kind of methods, devices and systems of locating interference source cell Download PDFInfo
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- CN107801199A CN107801199A CN201610812248.7A CN201610812248A CN107801199A CN 107801199 A CN107801199 A CN 107801199A CN 201610812248 A CN201610812248 A CN 201610812248A CN 107801199 A CN107801199 A CN 107801199A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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Abstract
The invention discloses a kind of methods, devices and systems of locating interference source cell, methods described includes:Interference signal is extracted from the signal received；Analysis detection is carried out to the interference signal, obtains time-domain symbol position and the frequency domain resource element position of interfered cell reference signal sequence；According to the time-domain symbol position of the interfered cell reference signal sequence, obtain the time-domain symbol position of auxiliary synchronous signals, and detect to obtain interfered cell auxiliary synchronous signals sequence according to the time-domain symbol position of auxiliary synchronous signals, and then cell ID used during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence；Cell ID used during according to the generation of the frequency domain resource element position of the interfered cell reference signal sequence and the interfered cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to a kind of method, apparatus of locating interference source cell
And system.
Background technology
For TD-LTE (Time Division Long Term Evolution, time-division length in existing Long Term Evolution
Phase evolution) system, it is desirable to base station keeps strict time synchronized, typically using GPS (Global Positioning
System, global positioning system) synchronous mode ensures the Timing Synchronization between base station.Due to being used in TD-LTE system
Mode with frequency covering is arranged net, and interfering between neighbor cell no doubt be present.Up-downgoing additionally, due to TD-LTE system passes
Defeated shared frequencies, therefore in TD-LTE system in addition to the interference that traditional minizone be present, the descending letter of telepoint base station also be present
The situation of number jamming target cell uplink signal.
Due to electromagnetic wave propagation characteristic, in some scenarios (factor such as air borne environment, atmospheric duct effects),
The remote co-channel interference of TD-LTE system is likely to occur between the base station of wide apart (tens kilometers or even hundreds of kilometer), and
And the downstream signal of distal end emission source may enter target BS after propagation delay reaches near-end with the target BS of frequency
Other transmission time slots, so as to influence the normal work of near-end goal systems, and this interference is probably that more base stations accumulations are folded
The effect added, such interference are as shown in Figure 1.
In practical application, when base station cell by other cells signal interference when, it is necessary to Analysis interference signal come
Source, that is, the cell belonging to interference signal is determined, so as to be ready to eliminate interference.If the cell of base station is due to other cells
Interference and cisco unity malfunction, and be unable to the source that fast positioning goes out the interference signal, then be difficult to eliminate the interference
Signal, also disturbed cell cannot be made to be promptly restored to normal working condition.
Meanwhile initial stage is applied in TD-LTE system, what emphasis of arranging net considered is focus covering, and far-end interference phenomenon is not
It is very prominent, such far-end interference can be protruded more afterwards.And in the prior art not to the distal end after TD-LTE networkings
Interference has effective detection method, and because the interference between above-mentioned base station has the spy that multistation accumulation is superimposed and scope is wider
Point, the difficulty positioned to interference source are just bigger.
The content of the invention
In order to solve the problems, such as above-mentioned locating interference source cell, the invention provides following technical scheme：
On the one hand the invention discloses a kind of method of interference source cell localization, described method to include：
Interference signal is extracted from the signal received in base station；
Base station carries out analysis detection to the interference signal, obtains the time-domain symbol position of interfered cell reference signal sequence
With frequency domain resource element position；
Base station obtains the time domain symbol of auxiliary synchronous signals according to the time-domain symbol position of the interfered cell reference signal sequence
Number position, and detect to obtain interfered cell auxiliary synchronous signals sequence according to the time-domain symbol position of auxiliary synchronous signals, and then according to
Cell ID used during the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence；
Base station is auxiliary same according to the frequency domain resource element position of the interfered cell reference signal sequence and the interfered cell
Cell ID used during the generation of signal sequence is walked, obtains disturbing the cell ID of cell-of-origin.
Alternatively, the interference signal of being extracted from the signal received includes：Interference survey is carried out to the signal received
Amount, it is determined that when adjacent cell interference be present, interference signal is extracted from the signal received.
Alternatively, described extraction interference signal is specially：
Lift interference signal on generic uplink time slot；With or,
Lift interference signal on uplink pilot time slot；With or,
Interference signal is extracted in protection interval；With or,
Ascending time slot and or uplink pilot time slot extraction interference signal are utilized in the zero load of this cell；With or,
When the part or all of descending time slot of base station is in quiet period, carried in the described descending time slot in quiet period
Take interference signal.
Alternatively, it is described that analysis detection is carried out to the interference signal, obtain the time domain of interfered cell reference signal sequence
Character position and frequency domain resource element position, including：
Interference signal is transformed from the time domain into frequency domain, according to the feature of frequency-region signal, determines cell reference signals sequence institute
Time-domain symbol position and frequency domain resource element position；
Or
It is synchronous that time-domain symbol is first carried out to interference signal, then interference signal is transformed from the time domain into frequency domain, is believed according to frequency domain
Number feature, determine the time-domain symbol position where cell reference signals sequence and frequency domain resource element position.
Alternatively, it is described that analysis detection is carried out to the interference signal also including falling according to interference signal in reception signal
Interference symbolic number in ascending time slot, obtain disturbing the distance of cell-of-origin and current area；In the interfered cell reference signal
Cell ID used, is obtained during the generation of the frequency domain resource element position of sequence and the interfered cell auxiliary synchronous signals sequence
After the cell ID for disturbing cell-of-origin, according to the cell mark of the distance and interference cell-of-origin of interference cell-of-origin and current area
Know common locating interference source cell.
Alternatively, it is described that analysis detection is carried out to the interference signal also including the letter according to cell reference signals sequence
Road estimated result, the angle of arrival of estimated disturbance signal, obtain disturbing azimuth information of the cell-of-origin relative to current area；Described
The generation when institute of the frequency domain resource element position of interfered cell reference signal sequence and the interfered cell auxiliary synchronous signals sequence
Cell ID, after obtaining the cell ID of interference cell-of-origin, the orientation according to interference cell-of-origin relative to current area
Information and the common locating interference source cell of cell ID for disturbing cell-of-origin.
Optionally, it is described that analysis detection is carried out to the interference signal also including falling receiving letter according to interference signal
Interference symbolic number in number ascending time slot, obtain disturbing the distance of cell-of-origin and current area；Also include being believed according to cell reference
The channel estimation results of number sequence, the angle of arrival of estimated disturbance signal；Provided in the frequency domain of the interfered cell reference signal sequence
Cell ID used during the generation of source element position and the interfered cell auxiliary synchronous signals sequence, obtain disturbing cell-of-origin
After cell ID, according to the cell ID of interference cell-of-origin, the distance of interference cell-of-origin and current area, interference cell-of-origin phase
Interference cell-of-origin is determined for the azimuth information of current area.
Optionally, described angle of arrival exists according to interfered cell reference signal sequence or interfered cell auxiliary synchronous signals sequence
The phase difference of channel estimation results in different antennae obtains, or is obtained according to blind Detecting
On the other hand the invention discloses a kind of device of interference source cell localization, described device to include：
Interference signal measure and extraction unit, positions of cell reference signals detection unit, auxiliary synchronous signals detection unit and
Determining unit is identified, wherein：
Interference signal extraction unit, for extracting interference signal from the signal received；
Positions of cell reference signals detection unit, for carrying out analysis detection to the interference signal, obtain interfered cell
The time-domain symbol position of reference signal sequence and frequency domain resource element position；
Auxiliary synchronous signals detection unit, for the time-domain symbol position according to the interfered cell reference signal sequence, obtain
To the time-domain symbol position of auxiliary synchronous signals, and it is auxiliary same according to the time-domain symbol position of auxiliary synchronous signals to detect to obtain interfered cell
Signal sequence is walked, and then according to the generation when institute of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence
Cell ID；
Determining unit is identified, for the frequency domain resource element position according to the interfered cell reference signal sequence and described
Cell ID used during the generation of interfered cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
The device of described interference source cell localization can also include distance estimations unit, angle-of- arrival estimation unit and cell
Determining unit：Described distance estimations unit, for the symbolic number according to interference signal row time slot interference on the received signal, obtain
To the range information of interference cell-of-origin and current area；Described angle-of- arrival estimation unit, for being believed according to interfered cell reference
The channel estimation results of number sequence or auxiliary synchronous signals sequence, the angle of arrival of estimated disturbance signal, obtain disturbing cell-of-origin relative
Azimuth information in current area；Described cell determining unit, believe for the distance according to interference cell-of-origin and current area
Breath, interference cell-of-origin determine interfered cell jointly relative to the azimuth information and interference source cell ID of current area.
Meanwhile the invention discloses a kind of system for retransmitting the renewal of data packet buffer state report, the system to include：Extremely
A few processor, described processor are used for：Interference signal is extracted from the signal received；The interference signal is carried out
Analysis detection, obtains time-domain symbol position and the frequency domain resource element position of interfered cell reference signal sequence；According to described dry
The time-domain symbol position of cell reference signals sequence is disturbed, obtains the time-domain symbol position of auxiliary synchronous signals, and according to auxiliary synchronous letter
Number time-domain symbol position detect to obtain interfered cell auxiliary synchronous signals sequence, and then according to interfered cell auxiliary synchronous signals sequence
Obtain cell ID used during the generation of interfered cell auxiliary synchronous signals sequence；According to the interfered cell reference signal sequence
Frequency domain resource element position and the interfered cell auxiliary synchronous signals sequence generation when cell ID used, disturbed
The cell ID of cell-of-origin；Memory, it is coupled at least one processor.
The methods, devices and systems of interference source cell localization disclosed in this invention, it can determine the small of interference cell-of-origin
Area identifies, it is contemplated that actual networking cell ID might have repetition, and this programme is in combination with distance and bearing information, therefore energy
Enough accurate locking interference cell-of-origins, it is achieved thereby that the scheme in the source of locating interferers.
Brief description of the drawings
Fig. 1 is TD-LTE system remote co-channel interference schematic diagram；
Fig. 2 is the method flow diagram of locating interference source cell disclosed in this invention；
Fig. 3 is the method flow diagram of the cell reference signals Sequence Detection of the embodiment of the present invention；
Fig. 4 is that single port, two-port and four port CRS send position signal under general cyclic prefix in TD-LTE system
Figure；
Fig. 5 is general cyclic prefix in TD-LTE system, and up-downgoing proportioning 2, special subframe proportioning 6, single port, cell is joined
Examine the time-domain symbol position view of signal sequence and auxiliary synchronous signals sequence in subframe；
Fig. 6 is the method flow diagram of another locating interference source cell of the embodiment of the present invention；
Fig. 7 is a kind of schematic device of locating interference source cell of the embodiment of the present invention；
Fig. 8 is the schematic device of another locating interference source cell of the embodiment of the present invention.
Embodiment
In scheme disclosed by the invention, as shown in Fig. 2 the method for described locating interference source cell includes：
201st, interference signal is extracted in base station from the signal received；
202nd, base station carries out analysis detection to the interference signal, obtains the time-domain symbol of interfered cell reference signal sequence
Position and frequency domain resource element position；
203rd, base station is according to the time-domain symbol position of the interfered cell reference signal sequence, obtain auxiliary synchronous signals when
Domain character position, and detected according to the time-domain symbol position of auxiliary synchronous signals to obtain interfered cell auxiliary synchronous signals sequence, and then
Cell ID used during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence；
204th, frequency domain resource element position and the interfered cell of the base station according to the interfered cell reference signal sequence
Cell ID used during the generation of auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
The cell ID of interference cell-of-origin is can determine using scheme disclosed in this invention, it is contemplated that actual networking cell
Mark might have repetition, and this programme can be in combination with distance and bearing information, therefore can accurately lock interference cell-of-origin,
It is achieved thereby that the scheme in the source of locating interferers.
Below by specific embodiment and with reference to main realization principle of the accompanying drawing to technical scheme disclosed by the invention, tool
Detailed description is described in detail in body embodiment and its beneficial effect that can reach.
Embodiment one：A kind of method of locating interference source cell, as shown in Fig. 2 this method includes：
Interference signal is extracted in step 201, base station from the signal received；
Specifically, when interference signal is extracted in the base station from the signal received, can be extracted in generic uplink time slot
With or uplink pilot time slot (Uplink Pilot Time Slot, abbreviation UpPTS) all extract.In order to avoid including this cell
Signal, in the zero load of this cell generic uplink time slot and uplink pilot time slot can also be utilized to carry out.
In order to obtain more interference signal information, expand the scope of extraction, can also be in protection interval (Guard
Period abbreviation GP) on extract.
Meanwhile can be when the part or all of descending time slot of base station be in quiet period, described in quiet period
Descending time slot extraction interference.
Step 202, analysis detection is carried out to the interference signal, obtain the time-domain symbol of interfered cell reference signal sequence
Position and frequency domain resource element position, detection process is as shown in figure 3, including step 2021-2023：
It is synchronous that step 2021, base station carry out time-domain symbol to interference signal；
Step 2022, base station carry out time-frequency domain conversation to the interference signal after the time-domain symbol synchronization, obtain frequency domain and do
Disturb signal；
Step 2023, base station determine cell reference signals sequence in the interference signal according to the feature of the frequency-region signal
Time-domain symbol position and frequency domain resource element position where arranging；
In TD-LTE system, cell reference signals sequenceIt is mapped to complex modulation symbolOn, as antenna
Port p existsReference symbol：
Wherein,
K=6m+ (v+vshift)mod6
V and vshiftThe position of frequency domain is defined for different reference signals.
The frequency displacement that cell is specifiedWherein, k represents frequency domain resource element index, and l represents time-domain symbol
Index.
As can be seen that the time domain symbol of cell reference signals (Cell-specific Reference Signals abbreviation CRS)
Number position is fixed, the position for the resource element that frequency domain takes and vshiftCorrelation, CRS transmit powers are typically high in real system
In data symbol, and it is that full bandwidth is sent, time-domain symbol position and frequency domain according to where these features are assured that CRS
Resource element position.As shown in figure 4, CRS is fixed on the hair of symbol 0 and 4 of each time slot during single port under general cyclic prefix
Send, on single symbol, CRS resource elements fixed intervals 6, two-port CRS is identical with respect to single port occupancy symbol, but resource element
Plain number is double, and CRS symbol numbers and resource element number are more under four ports.In Fig. 4, CRS takes on the symbol 0 of port 0
Resource element position in resource element 0 and 6, then vshift=0, illustrate that interfered cell identifiesMeet
Step 203, base station obtain auxiliary synchronous signals according to the time-domain symbol position of the interfered cell reference signal sequence
Time-domain symbol position, and detected according to the time-domain symbol position of auxiliary synchronous signals to obtain interfered cell auxiliary synchronous signals sequence,
And then cell mark used during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence
Know；
Specifically, in TD-LTE system, the time-domain symbol positions of cell reference signals and auxiliary synchronous signals be it is fixed, such as
Shown in Fig. 5,2 are matched with up-downgoing, exemplified by special subframe matches 6, descending pilot frequency time slot DwPTS accounts for 9 symbols in special subframe,
Protection interval GP accounts for 3 symbols, and uplink pilot time slot UpPTS accounts for 2 symbols, gives cell reference signals CRS under single port
With auxiliary synchronous signals SSS position view.It can be seen that when CRS time-domain symbol position determine after, it is possible to determine SSS when
Domain character position.
The frequency domain resource element position and the interference of step 204, base station according to the interfered cell reference signal sequence
Cell ID used during the generation of cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
If the CRS deviants that the frequency domain resource element position of the interfered cell reference signal sequence determines are vshift,
Cell ID used is during the generation of the interfered cell auxiliary synchronous signals sequenceIt can then obtain disturbing small
Area identifiesIt can be obtained by equation below：
Embodiment two：A kind of method of locating interference source cell, as shown in fig. 6, this method includes：
Step 601, base station carry out interferometry to the signal that receives, and when adjacent cell interference be present, base station is from reception
To signal in extract interference signal；
Step 602, base station carry out analysis detection to the interference signal, obtain the time domain of interfered cell reference signal sequence
Character position and frequency domain resource element position
Step 603, base station obtain auxiliary synchronous signals according to the time-domain symbol position of the interfered cell reference signal sequence
Time-domain symbol position, and detected according to the time-domain symbol position of auxiliary synchronous signals to obtain interfered cell auxiliary synchronous signals sequence,
And then cell mark used during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence
Know
Step 605, base station fall interference symbolic number on the received signal in row time slot according to the interference signal, are done
Disturb the distance of cell-of-origin and current area；
Specifically, if in TD-LTE system, interference signal fall on the received signal in row time slot interference symbolic number (including
Fall in system uplink pilot time slot and up U subframes) it is NIIndividual, symbolic number corresponding to the GP of system protection interval is NGPIt is individual, each
Symbol is T including time domain length corresponding to cyclic prefixsymSecond, then interference cell-of-origin and current is calculated according to equation below
The distance D rice of cell：
D=(NI+NGP)*Tsym*3*108
Wherein, NICan be integer or non-integer, you can with mixed decimal part.
Step 606, base station are according to the interfered cell reference signal sequence or the channel estimation knot of auxiliary synchronous signals sequence
Fruit, the angle of arrival of estimated disturbance signal, obtain disturbing azimuth information of the cell-of-origin relative to current area；
Specifically, the angle of arrival of interference signal, can be different according to cell reference signals sequence or auxiliary synchronous signals sequence
The phase difference of channel estimation results on antenna obtains, and can also be obtained according to blind Detecting.
Step 607, base station are relative according to the range information of the interference cell-of-origin and current area, the interference cell-of-origin
Interfered cell is determined jointly in the azimuth information of current area and the interference source cell ID.
Embodiment three：A kind of device of interference source cell localization is provided in the present embodiment, the device wraps as shown in Figure 7
Include：Interference signal measures and extraction unit, positions of cell reference signals detection unit, auxiliary synchronous signals detection unit and mark are true
Order member, wherein：
Interference signal extraction unit 701, for extracting interference signal from the signal received；
Positions of cell reference signals detection unit 702, for carrying out analysis detection to the interference signal, obtain disturbing small
The time-domain symbol position of area's reference signal sequence and frequency domain resource element position；
Auxiliary synchronous signals detection unit 703, for the time-domain symbol position according to the interfered cell reference signal sequence,
Obtain the time-domain symbol position of auxiliary synchronous signals, and according to the time-domain symbol position of auxiliary synchronous signals detect to obtain interfered cell auxiliary
Synchronous signal sequence, and then during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence
Cell ID used；
Identify determining unit 704, for the frequency domain resource element position according to the interfered cell reference signal sequence and
Cell ID used during the generation of the interfered cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
Example IV：A kind of device of interference source cell localization is provided in the present embodiment, the device wraps as shown in Figure 8
Include interference signal measurement and extraction unit, interferer signal detection unit, mark determining unit, distance estimations unit, up to angular estimation
Unit and cell determining unit, wherein：
Interference signal measures and extraction unit 801, for carrying out interferometry to the signal that receives, when adjacent cell being present
During interference, interference signal is extracted from the signal received；
Positions of cell reference signals detection unit 802, for carrying out analysis detection to the interference signal, obtain disturbing small
The time-domain symbol position of area's reference signal sequence and frequency domain resource element position；
Auxiliary synchronous signals detection unit 803, for the time-domain symbol position according to the interfered cell reference signal sequence,
Obtain the time-domain symbol position of auxiliary synchronous signals, and according to the time-domain symbol position of auxiliary synchronous signals detect to obtain interfered cell auxiliary
Synchronous signal sequence, and then during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence
Cell ID used；
Identify determining unit 804, for the frequency domain resource element position according to the interfered cell reference signal sequence and
Cell ID used during the generation of the interfered cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin；
Distance estimations unit 805, for the symbolic number according to interference signal row time slot interference on the received signal, done
Disturb the range information of cell-of-origin and current area；
Angle-of- arrival estimation unit 806, for the channel according to interfered cell reference signal sequence or auxiliary synchronous signals sequence
Estimated result, the angle of arrival of estimated disturbance signal, obtain disturbing azimuth information of the cell-of-origin relative to current area；
Cell determining unit 807, it is relative for the range information according to interference cell-of-origin and current area, interference cell-of-origin
Azimuth information and interference source cell ID in current area determine interfered cell jointly.
Embodiment five：A kind of system of interference source cell localization is present embodiments provided, the system includes：At least one place
Device is managed, described processor is used for：Interference signal is extracted from the signal received；Analysis inspection is carried out to the interference signal
Survey, obtain time-domain symbol position and the frequency domain resource element position of interfered cell reference signal sequence；According to the interfered cell
The time-domain symbol position of reference signal sequence, obtains the time-domain symbol position of auxiliary synchronous signals, and according to auxiliary synchronous signals when
Domain character position detects to obtain interfered cell auxiliary synchronous signals sequence, and then is done according to interfered cell auxiliary synchronous signals retrieval
Disturb cell ID used during the generation of cell auxiliary synchronous signals sequence；According to the frequency domain of the interfered cell reference signal sequence
Cell ID used during the generation of resource element position and the interfered cell auxiliary synchronous signals sequence, obtain disturbing cell-of-origin
Cell ID；Memory, it is coupled at least one processor.
As can be seen from the above description, the method, apparatus and equipment proposed according to embodiments of the present invention, is tied simultaneously
Distance and bearing information is closed, therefore can accurately lock interference cell-of-origin, it is achieved thereby that the mesh in the source of locating interferers
's.
By the explanation of embodiment, should can to the present invention for reach technological means that predetermined purpose is taken and
Effect is able to more go deep into and specific understanding, but appended diagram is only to provide reference and purposes of discussion, not for this
Invention is any limitation as.Simultaneously under the information not conflicted, the feature in embodiment and embodiment can be mutually combined.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method or computer program product.
Therefore, the form of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware.And
And the present invention can use the computer-usable storage medium for wherein including computer usable program code in one or more
The form for the computer program product implemented on (including but is not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow chart and/or block diagram with reference to method and computer program product according to embodiments of the present invention
Come what is described.It should be understood that can by each flow in computer program instructions implementation process figure and/or block diagram and/or square frame,
And the flow in flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided to general meter
Calculation machine, special-purpose computer, the processor of Embedded Processor or other programmable data processing devices are made with producing a machine
It must be produced by the instruction of computer or the computing device of other programmable data processing devices for realizing in flow chart one
The device for the function of being specified in individual flow or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (11)
- A kind of 1. method of locating interference source cell, it is characterised in that this method includes：Interference signal is extracted from the signal received；Analysis detection is carried out to the interference signal, obtains time-domain symbol position and the frequency domain money of interfered cell reference signal sequence Source element position；According to the time-domain symbol position of the interfered cell reference signal sequence, the time-domain symbol position of auxiliary synchronous signals is obtained, And detected to obtain interfered cell auxiliary synchronous signals sequence according to the time-domain symbol position of auxiliary synchronous signals, and then according to interfered cell Cell ID used during the generation of auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence；According to the frequency domain resource element position of the interfered cell reference signal sequence and the interfered cell auxiliary synchronous signals sequence Cell ID used during the generation of row, obtain disturbing the cell ID of cell-of-origin.
- 2. the method as described in claim 1, it is characterised in that the interference signal of being extracted from the signal received includes：Interferometry is carried out to the signal received, it is determined that when adjacent cell interference be present, extracted from the signal received Interference signal.
- 3. method as claimed in claim 2, it is characterised in that described extraction interference signal is specially：Interference signal is extracted in generic uplink time slot；With or,Interference signal is extracted in uplink pilot time slot；With or,Interference signal is extracted in protection interval；With or,Ascending time slot and or uplink pilot time slot extraction interference signal are utilized in the zero load of this cell；With or,It is dry in the described extraction of the descending time slot in quiet period when the part or all of descending time slot of base station is in quiet period Disturb signal.
- 4. the method as described in claim any one of 1-3, it is characterised in that described that analysis inspection is carried out to the interference signal Survey, obtain time-domain symbol position and the frequency domain resource element position of interfered cell reference signal sequence, including：Interference signal is transformed from the time domain into frequency domain, according to the feature of frequency-region signal, determines interfered cell reference signal sequence Time-domain symbol position and frequency domain resource element position；OrIt is synchronous that time-domain symbol is first carried out to interference signal, then interference signal is transformed from the time domain into frequency domain, according to frequency-region signal Feature, determine time-domain symbol position and the frequency domain resource element position of interfered cell reference signal sequence.
- 5. method as claimed in claim 4, described that analysis detection is carried out to the interference signal also including believing according to interference Number fall the interference symbolic number on the received signal in row time slot, obtain disturbing the distance of cell-of-origin and current area；Described dry Disturb cell reference signals sequence frequency domain resource element position and the interfered cell auxiliary synchronous signals sequence generation when it is used Cell ID, after the cell ID for obtaining disturbing cell-of-origin, according to the distance of interference cell-of-origin and current area and dry Disturb the common locating interference source cell of cell ID of cell-of-origin.
- 6. method as claimed in claim 4, described that analysis detection is carried out to the interference signal also including small according to disturbing The channel estimation results of area's reference signal sequence, the angle of arrival of estimated disturbance signal, obtain disturbing cell-of-origin relative to current small The azimuth information in area；In the auxiliary synchronization of frequency domain resource element position and the interfered cell of the interfered cell reference signal sequence Cell ID used during the generation of signal sequence, after obtaining the cell ID of interference cell-of-origin, according to interference cell-of-origin phase The common locating interference source cell of cell ID of azimuth information and interference cell-of-origin for current area.
- 7. method as claimed in claim 5, described that analysis detection is carried out to the interference signal also including small according to disturbing The channel estimation results of area's reference signal sequence, the angle of arrival of estimated disturbance signal, obtain disturbing cell-of-origin relative to current small The azimuth information in area；In the auxiliary synchronization of frequency domain resource element position and the interfered cell of the interfered cell reference signal sequence Cell ID used during the generation of signal sequence, after obtaining the cell ID of interference cell-of-origin, according to interference cell-of-origin Cell ID, the distance of interference cell-of-origin and current area, interference cell-of-origin determine to do relative to the azimuth information of current area Disturb cell-of-origin.
- 8. method as claimed in claims 6 or 7, described angle of arrival is according to interfered cell reference signal sequence or interfered cell The phase difference of the channel estimation results of auxiliary synchronous signals sequence on different antennas obtains, or is obtained according to blind Detecting.
- 9. a kind of device of locating interference source cell, the measurement of described device interference signal and extraction unit, cell reference signals Position detection unit, auxiliary synchronous signals detection unit and mark determining unit, wherein：Interference signal extraction unit, for extracting interference signal from the signal received；Positions of cell reference signals detection unit, for carrying out analysis detection to the interference signal, obtain interfered cell reference The time-domain symbol position of signal sequence and frequency domain resource element position；Auxiliary synchronous signals detection unit, for the time-domain symbol position according to the interfered cell reference signal sequence, obtain auxiliary The time-domain symbol position of synchronizing signal, and according to the time-domain symbol position of auxiliary synchronous signals detect to obtain that interfered cell is auxiliary synchronous believes Number sequence, so it is used during according to the generation of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence Cell ID；Determining unit is identified, for the frequency domain resource element position according to the interfered cell reference signal sequence and the interference Cell ID used during the generation of cell auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin.
- 10. device as claimed in claim 9, in addition to distance estimations unit, angle-of- arrival estimation unit and cell determining unit： Described distance estimations unit, for the symbolic number according to interference signal row time slot interference on the received signal, obtain interference source Cell and the range information of current area；Described angle-of- arrival estimation unit, for according to interfered cell reference signal sequence or The channel estimation results of auxiliary synchronous signals sequence, the angle of arrival of estimated disturbance signal, obtain disturbing cell-of-origin relative to current small The azimuth information in area；Described cell determining unit, for range information, the interference source according to interference cell-of-origin and current area Cell determines interfered cell jointly relative to the azimuth information and interference source cell ID of current area.
- 11. a kind of system of locating interference source cell, the system include：At least one processor, described processor are used for：From Interference signal is extracted in the signal received；Analysis detection is carried out to the interference signal, obtains interfered cell reference signal sequence The time-domain symbol position of row and frequency domain resource element position；According to the time-domain symbol position of the interfered cell reference signal sequence Put, obtain the time-domain symbol position of auxiliary synchronous signals, and according to the time-domain symbol position of auxiliary synchronous signals detect to obtain disturb it is small Area's auxiliary synchronous signals sequence, and then according to the production of interfered cell auxiliary synchronous signals retrieval interfered cell auxiliary synchronous signals sequence Cell ID used when raw；It is small according to the frequency domain resource element position of the interfered cell reference signal sequence and the interference Cell ID used during the generation of area's auxiliary synchronous signals sequence, obtain disturbing the cell ID of cell-of-origin；Memory, it is coupled To at least one processor.
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