The content of the invention
In view of above technical problem, the invention provides a kind of for adjacent frequency Interference Detection and optimizationMethod and little base station, can be reduced the interference of network edge adjacent frequency, are carried with reasonably optimizing uplink-downlink configurationHigh network throughput and spectrum efficiency.
According to an aspect of the present invention, there is provided it is a kind of for adjacent frequency Interference Detection with optimization sideMethod, including：Detection surrounding whether there is TD-LTE signals；If surrounding is presentTD-LTE signals, then judge that Reference Signal Received Power RSRP is more than predetermined power value PTHSignal source quantity whether be more than 1；If RSRP is more than predetermined power value PTHSignal numberAmount obtains RSRP more than 1, then and is more than PTHAll signal sources uplink-downlink configuration information；Relatively RSRP is more than PTHAll signal sources uplink-downlink configuration information it is whether identical；IfRSRP is more than PTHAll signal sources uplink-downlink configuration information it is identical, then will be described identicalUplink-downlink configuration information as little base station TD uplink-downlink configuration information.
In one embodiment of the invention, methods described also includes：If RSRP is more than PTHThe uplink-downlink configuration information of all signal sources differ, then send warning message to network management system.
In one embodiment of the invention, methods described also includes：If RSRP is more than predeterminedPerformance number PTHSignal source quantity be 1, then obtain the uplink-downlink configuration information of the signal source；Using the uplink-downlink configuration information of the signal source as little base station TD uplink-downlink configuration information.
In one embodiment of the invention, methods described also includes：If RSRP is more than predeterminedPerformance number PTHSignal source quantity be 0, then keep the TD uplink-downlink configurations information of little base station notBecome.
In one embodiment of the invention, the reference signal of the judgement TD-LTE signals connectsReceive power RSRP and be more than predetermined power value PTHSignal source quantity whether more than 1 the step of wrapInclude：According to the TD-LTE signals of detection, the RSRP of signal source is determined；The each signal of comparisonWhether the RSRP in source is more than predetermined power value PTH；Statistics RSRP is more than predetermined power value PTHSignal source quantity；Judge the quantity whether more than 1.
According to a further aspect in the invention, there is provided it is a kind of for adjacent frequency Interference Detection with optimization little baseStand, including detection module, identification module, the first configuration acquisition module, comparison module and firstConfiguration modifications module, wherein：
Detection module, for detecting that surrounding whether there is TD-LTE signals；
Identification module, for when detection module detects surrounding and there is TD-LTE signals,Judge that Reference Signal Received Power RSRP is more than predetermined power value PTHSignal source quantity whetherMore than 1；
First configuration acquisition module, for the judged result according to identification module, if RSRP is bigIn predetermined power value PTHSignal source quantity be more than 1, then obtain RSRP be more than PTHInstituteThere is the uplink-downlink configuration information of signal source；
Comparison module, for comparing the uplink-downlink configuration letter of the first configuration acquisition module acquisitionWhether breath is identical；
First configuration modifications module, for the comparative result according to comparison module, if the first configurationThe uplink-downlink configuration information that acquisition module is obtained is identical, then match somebody with somebody the identical up-downgoingConfidence ceases the TD uplink-downlink configuration information as little base station.
In one embodiment of the invention, the little base station also includes alarm module, wherein：
Alarm module, for the comparative result according to comparison module, if the first configuration acquisition moduleThe uplink-downlink configuration information for obtaining is differed, then send warning message to network management system.
In one embodiment of the invention, the little base station is also including the second configuration acquisition moduleWith the second configuration modifications module, wherein：
Second configuration acquisition module, for the judged result according to identification module, if RSRP is bigIn predetermined power value PTHSignal source quantity be 1, then obtain the uplink-downlink configuration of the signal sourceInformation；
Second configuration modifications module, for the signal source of acquisition module acquisition is configured firstTD uplink-downlink configuration information of the uplink-downlink configuration information as little base station.
In one embodiment of the invention, the little base station also includes that configuration keeps module, itsIn：
Configuration keeps module, for the judged result according to identification module, if RSRP is more than pre-Determine performance number PTHSignal source quantity be 0, then keep the TD uplink-downlink configuration information of little base stationIt is constant.
In one embodiment of the invention, identification module includes power acquisition module, comparison listUnit, statistic unit and recognition unit, wherein：
Power acquisition module, for the TD-LTE signals detected according to detection module, it is determined that letterThe RSRP in number source；
Whether comparing unit, the RSRP for each signal source of comparison are more than predetermined power valuePTH；
Statistic unit, for counting RSRP more than predetermined power value PTHSignal source quantity；
Recognition unit, for judging the quantity whether more than 1.
The present invention can little base station open station after quick detection and evade automatically TD signals adjacent frequency doDisturb, the uplink-downlink configuration so as to reasonably optimizing, reduce the interference of network edge adjacent frequency, improveNetwork throughput and spectrum efficiency.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present inventionIt is clearly and completely described, it is clear that described embodiment is only that a present invention part is realApply example, rather than the embodiment of whole.Description reality at least one exemplary embodiment belowOn be merely illustrative, never as to the present invention and its application or any restriction for using.BaseEmbodiment in the present invention, those of ordinary skill in the art are not making creative work premiseLower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part that otherwise illustrates in these embodiments and step it is relativeArrangement, numerical expression and numerical value are not limited the scope of the invention.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawingIt is not to draw according to actual proportionate relationship.
For known to person of ordinary skill in the relevant, technology, method and apparatus may not be made in detailDiscuss, but in the appropriate case, the technology, method and apparatus should be considered to authorize descriptionA part.
In all examples of shown here and discussion, any occurrence should be construed as merely and showExample property, not as restriction.Therefore, the other examples of exemplary embodiment can have notSame value.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore,Once being defined in a certain Xiang Yi accompanying drawing, then need not which be entered to advance in subsequent accompanying drawingOne step discussion.
Fig. 1 is signal of the present invention for adjacent frequency Interference Detection and method one embodiment of optimizationFigure.Preferably, the little base station that the present embodiment can be by invention for adjacent frequency Interference Detection with optimization performs.The method is comprised the following steps：
Step 101, after station is opened in little base station, carries out frequency sweep to the TD signals of surrounding, withDetection surrounding whether there is TD-LTE signals.
In one embodiment of the invention, step 101 can include：It is deployed in cell edgeLittle base station open after, the process of self-configuring can be carried out, on the TD including little base stationDescending proportioning information；Afterwards in order to avoid the interference with other operators, little base station is by localTD-LTE signal environments around reception device detection, check for other operatorsTD-LTE signals.
Step 102, if surrounding has TD-LTE signals, judges that reference signal is receivedPower RSRP is more than predetermined power value PTHSignal source quantity whether be more than 1.
Step 103, if RSRP is more than predetermined power value PTHSignal source quantity be more than 1, thenObtain RSRP and be more than PTHAll signal sources uplink-downlink configuration information.
Step 104, compares RSRP more than PTHAll signal sources uplink-downlink configuration informationIt is whether identical.
Step 105, if RSRP is more than PTHAll signal sources uplink-downlink configuration information phaseTogether, then believe the identical uplink-downlink configuration information as the TD uplink-downlink configurations of little base stationBreath.
The method for adjacent frequency Interference Detection with optimizing provided based on the above embodiment of the present invention,After station is opened in the little base station under isomery scene, frequency sweep is carried out to TD signals around, acquisition reachesTo the number and its up-downgoing proportioning information of interference threshold TD signals, little base station can configure identicalUp-downgoing proportioning disturbed with the adjacent frequency for avoiding macro base station, up-downgoing is matched somebody with somebody so as to reasonably optimizingPut, reduce the interference of network edge adjacent frequency, improve network throughput and spectrum efficiency.
Fig. 2 is more than the letter of predetermined value for Reference Signal Received Power is judged in one embodiment of the inventionNumber source quantity whether schematic diagram more than 1.As shown in Fig. 2 judging the reference of TD-LTE signalsSignal reception power RSRP is more than predetermined power value PTHSignal source quantity whether more than 1Step includes：
Step 201, according to the TD-LTE signals of detection, determines the RSRP of signal source.
Whether step 202, the RSRP of each signal source of comparison are more than predetermined power value PTH。
In one embodiment of the invention, such as detecting certain TD signal RSRP value is- 100dBm, and now predetermined power value PTHFor -105dBm, then it is assumed that the TD signals are fullThe signal of sufficient threshold condition.
Step 203, statistics RSRP are more than predetermined power value PTHSignal source quantity.
Whether step 204, judge the quantity more than 1.
Fig. 3 is signal of the present invention for adjacent frequency Interference Detection and another embodiment of method of optimizationFigure.Preferably, the little base station that the present embodiment can be by invention for adjacent frequency Interference Detection with optimization performs.The method is comprised the following steps：
Step 301, after station is opened in little base station, carries out frequency sweep to the TD signals of surrounding, withDetection surrounding whether there is TD-LTE signals.
Step 302, if surrounding has TD-LTE signals, judges RSRP more than pre-Determine performance number PTHSignal source quantity whether be more than 1.If RSRP is more than predetermined power value PTHSignal source quantity more than 1 (that is, detect meet threshold condition TD signals be 2 orIt is more), then execution step 307；Otherwise, if RSRP is not more than predetermined power value PTH'sSignal source quantity be not more than 1 (that is, detect meet threshold condition TD signals be 0 or 1It is individual), then execution step 303.
Step 303, judges that RSRP is more than predetermined power value PTHSignal source quantity whether etc.In 1.If RSRP is more than predetermined power value PTHSignal source quantity (that is, detect equal to 1The TD signals for meeting threshold condition are 1), then execution step 304；Otherwise, if RSRPNo more than predetermined power value PTHSignal source quantity be not equal to 1 and (that is, detect and meet thresholdingSignal source quantity be equal to 0), then execution step 306.
Step 304, reception device can consider that surrounding is not interfered with, or surrounding only one of which TDSignal source, then obtain the uplink-downlink configuration information of the signal source.
Step 305, believes the uplink-downlink configuration information as the TD uplink-downlink configurations of little base stationBreath, no longer performs other steps of the present invention afterwards.
Step 306, keeps the TD uplink-downlink configuration Information invariabilities of little base station, no longer holds afterwardsOther steps of the row present invention.
Step 307, obtains RSRP and is more than PTHAll signal sources uplink-downlink configuration information.
Step 308, compares RSRP more than PTHAll signal sources uplink-downlink configuration informationIt is whether identical.If RSRP is more than PTHAll signal sources uplink-downlink configuration information it is identical,Then execution step 305, will the identical uplink-downlink configuration information as little base station TDUplink-downlink configuration information；Otherwise, if RSRP is more than PTHThe up-downgoing of all signal sources match somebody with somebodyConfidence breath is differed, then execution step 309.
Step 309, sends warning message to network management system.
In one specific embodiment of the present invention, as shown in figure 4, the little base station 3 of operator APositioned at the edge of the signal source 2 of the signal source 1 and operator B of operator A, if little base station 3Qi Zhanhou, detects RSRP more than PTHTD signal sources quantity be 2.
The reception device of little base station obtains the uplink-downlink configuration information of signal source 1 and signal source 2,Wherein, the uplink-downlink configuration information of signal source 1 is：Descending-up-up-up-descending-underRow-descending；The uplink-downlink configuration information of signal source 2 is：Descending-up-up-up-descending-It is descending-descending.Signal source 1 is identical with the uplink-downlink configuration information of signal source 2.
Therefore, little base station using with 2 identical up-downgoing parameter configuration of signal source 1 and signal source,It is possible thereby to avoid producing adjacent frequency interference.
In specific embodiment described in Fig. 4 of the present invention, if what the reception device of little base station was obtainedThe uplink-downlink configuration information of signal source 1 is：It is descending-up-descending-descending-descending-descending-descending；The uplink-downlink configuration information of signal source 2 is：It is descending-up-up-up-descending-descending-descending.The uplink-downlink configuration information of signal source 1 and signal source 2 is differed.Then no matter little base station uses whichUplink-downlink configuration is planted, all can be disturbed by adjacent frequency, and between local Liang Ge operators macro base stationCan also there is the risk of adjacent frequency interference problem, therefore little base station initiates to alert to network management system, withThe more centralized pool optimization of network management system offer is provided or artificial optimization is carried out.
There is adjacent frequency interference for different operators network boundary and ask in the above embodiment of the present inventionTopic, under a kind of isomery scene of proposition, little base station optimizes TD uplink-downlink configurations, evades neighbour after opening stationThe method of frequency interference, by adding signal receiving device in little base station end, to TD signals aroundFrequency sweep is carried out, acquisition reaches the number and its up-downgoing proportioning information of interference threshold TD signals,The configurable identical up-downgoing proportioning in little base station is disturbed with the adjacent frequency for avoiding macro base station, or toNetwork sends alarm, reaches the effect for improving spectrum efficiency and throughput of system.
Fig. 5 is that the present invention is shown with the little base station one embodiment for optimizing for adjacent frequency Interference DetectionIt is intended to.As shown in figure 5, the little base station for adjacent frequency Interference Detection with optimization includes detection module501st, the configuration of identification module 502, first acquisition module 503, comparison module 504 and first are matched somebody with somebodyCorrecting module 505 is put, wherein：
Detection module 501, for detecting that surrounding whether there is TD-LTE signals.
, there is TD-LTE for surrounding being detected in detection module 501 in identification module 502During signal, judge that Reference Signal Received Power RSRP is more than predetermined power value PTHSignal sourceWhether quantity is more than 1.
First configuration acquisition module 503, for the judged result according to identification module 502, ifRSRP is more than predetermined power value PTHSignal source quantity be more than 1, then obtain RSRP be more thanPTHAll signal sources uplink-downlink configuration information.
Comparison module 504, for comparing the described upper and lower of the acquisition of the first configuration acquisition module 503Whether row configuration information is identical.
First configuration modifications module 505, for the comparative result according to comparison module 504, ifThe uplink-downlink configuration information that first configuration acquisition module 503 is obtained is identical, then by the phaseTD uplink-downlink configuration information of the same uplink-downlink configuration information as little base station.
Based on the above embodiment of the present invention offer for adjacent frequency Interference Detection and the little base for optimizingStand, after station is opened in the little base station under isomery scene, frequency sweep is carried out to TD signals around, is obtainedThe number and its up-downgoing proportioning information for reaching interference threshold TD signals is taken, little base station can configureIdentical up-downgoing proportioning is disturbed with the adjacent frequency for avoiding macro base station, so as to reasonably optimizing up and downRow configuration, reduces the interference of network edge adjacent frequency, improves network throughput and spectrum efficiency.
For, in following TD-LTE system isomery networking scene, the little base station carried in the present invention canWith the heterogeneous nodes type including all non-macro stations, as long as meet being deployed in different operators network edgeEdge and the network node of self-starting is needed, and adopt TD-LTE standards, its up-downgoing proportioning is joinedNumber is all essential.
Fig. 6 is that the present invention is shown with the little base station another embodiment for optimizing for adjacent frequency Interference DetectionIt is intended to.Compared with embodiment illustrated in fig. 5, in the embodiment shown in fig. 6, the little base station can be withIncluding alarm module 506, wherein：
Alarm module 506, for the comparative result according to comparison module 504, if the first configurationThe uplink-downlink configuration information that acquisition module 503 is obtained is differed, then send to network management systemWarning message.
There is adjacent frequency interference for different operators network boundary and ask in the above embodiment of the present inventionTopic, under a kind of isomery scene of proposition, little base station optimizes TD uplink-downlink configurations, evades neighbour after opening stationThe little base station of frequency interference, carries out frequency sweep to TD signals around, and acquisition reaches interference threshold TDThe number and its up-downgoing proportioning information of signal, the configurable identical up-downgoing proportioning in little base station withThe adjacent frequency interference of macro base station is avoided, or alarm is sent to network, reach raising spectrum efficiencyWith the effect of throughput of system.
In one embodiment of the invention, warning system refers in NMSPoint, the alarm module of little base station is alerted by the warning system to network management system, illustrates little base stationThere is the interference of TD-LTE up-downgoing proportionings adjacent frequency in location, and cannot pass through little base station itselfConfiguration carries out interference and evades, and can only be planned as a whole to dispose by centralized network management system, or manuallyIt is optimized.
In one embodiment of the invention, as shown in fig. 6, the little base station can also includeSecond configuration acquisition module 507 and the second configuration modifications module 508, wherein：
Second configuration acquisition module 507, for the judged result according to identification module 502, ifRSRP is more than predetermined power value PTHSignal source quantity be 1, then obtain the upper and lower of the signal sourceRow configuration information.
Second configuration modifications module 508, should for what is obtained the first configuration acquisition module 503TD uplink-downlink configuration information of the uplink-downlink configuration information of signal source as little base station.
In the above embodiment of the present invention, if detect meet threshold condition TD signals be 0Or when 1, reception device can consider that surrounding is not interfered with, or surrounding only one of which TD letterNumber source, therefore little base station can obtain the TD signal source uplink-downlink configuration information, then little baseStand.
In one embodiment of the invention, as shown in fig. 6, the little base station can also includeConfiguration keeps module 509, wherein：
Configuration keeps module 509, for the judged result according to identification module 502, if RSRPMore than predetermined power value PTHSignal source quantity be 0, then keep the TD up-downgoings of little base station to match somebody with somebodyPut Information invariability.
Fig. 7 is the schematic diagram of identification module in Fig. 5 or Fig. 6 embodiments of the present invention.As shown in fig. 7,The identification module 502 includes power acquisition module 701, comparing unit 702, statistic unit703 and recognition unit 704, wherein：
Power acquisition module 701, for the TD-LTE signals detected according to detection module 501,Determine the RSRP of signal source.
Whether comparing unit 702, the RSRP for each signal source of comparison are more than predetermined powerValue PTH。
Statistic unit 703, for counting RSRP more than predetermined power value PTHSignal numberAmount.
Recognition unit 704, for whether judging the quantity more than 1, and is more than in the quantityWhen 1, indicate that the first configuration acquisition module 503 carries out corresponding operating and (that is, obtains RSRP bigIn PTHAll signal sources uplink-downlink configuration information).
In one embodiment of the invention, whether recognition unit 704 is additionally operable in the quantityWhen no more than 1, judge the quantity whether equal to 1；When the quantity is equal to 1, indicateSecond configuration acquisition module 507 carries out corresponding operating, and (that is, the up-downgoing for obtaining the signal source is matched somebody with somebodyConfidence ceases)；And when the quantity is not equal to 1, indicate that configuration keeps module 509 to keep littleThe TD uplink-downlink configuration Information invariabilities of base station.
Detection module 501 described above, the configuration of identification module 502, first obtain mouldBlock 503, comparison module 504, the first configuration modifications module 505, alarm module 506, secondConfiguration acquisition module 507, the second configuration modifications module 508 and configuration keep the work(such as module 509Energy unit is can be implemented as performing the general processor of function described herein, may be programmedLogic controller (PLC), digital signal processor (DSP), special IC (ASIC),Field programmable gate array (FPGA) or other PLDs, discrete gate orTransistor logic, discrete hardware components or which is arbitrarily appropriately combined.
The configuration acquisition module 503 of detection module 501, first described in the above embodiment of the present inventionThe reception device of little base station is can be implemented as with the second configuration acquisition module 507.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, do not haveDescription some details known in the field.Those skilled in the art as described above, completelyIt can be appreciated how implementing technical scheme disclosed herein.
One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodimentCan be completed by hardware, it is also possible to instruct the hardware of correlation to complete by program, it is describedProgram can be stored in a kind of computer-readable recording medium, and storage medium mentioned above can be withIt is read only memory, disk or CD etc..