CN104811977A - Method and device for monitoring adjacent community - Google Patents
Method and device for monitoring adjacent community Download PDFInfo
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- CN104811977A CN104811977A CN201510158559.1A CN201510158559A CN104811977A CN 104811977 A CN104811977 A CN 104811977A CN 201510158559 A CN201510158559 A CN 201510158559A CN 104811977 A CN104811977 A CN 104811977A
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
Abstract
The invention relates to a method and a device for monitoring adjacent community, and aims at solving the problems of the existing room-based subsystem adjacent community monitoring method that the noise and/ or interface of different remote units is overlapped during detecting and the monitoring success rate is small, and more time is consumed during detecting. The method comprises the steps of dividing the remote unit into N monitoring groups through a baseband processing unit, wherein N is a positive integer; selecting one remote unit from one monitoring group through the baseband processing unit according to the independent receiving quality of each remote unit in the monitoring group under each frequency point to be monitored; starting the selected remote unit through the baseband processing unit; closing the rest remote units in the monitoring set; determining the information of the adjacent cell according to a signal received by the opened remote unit under the frequency point to be monitored.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of method and apparatus of intercepting adjacent area.
Background technology
Along with the fast development of mobile Internet, house data business is explosive growth, realize the indoor degree of depth cover and capacity become particularly urgent, novel room subsystem is convenient to rapid deployment owing to adopting netting twine passback power supply, adopt the mulching method of small-power multiple antennas effectively to reach signal uniform fold simultaneously, therefore be widely used in in-door covering, effectively realize the indoor degree of depth and cover and capacity.Meanwhile, because SON (Self-Organized Net Work, self-organizing network) effectively can reduce the network O&M cost of mobile operator, in the subsystem of novel room, therefore increase SON function seem very necessary.
But, realize SON first will complete adjacent area and intercept, comparatively serve the terminal under the subsystem of novel room, the intensity that broadcast singal due to adjacent base station when adjacent area is intercepted arrives extension unit is more weak, therefore the sensitivity requirement separating adjacent area broadcast is higher, greatly declines so the result worsening sensitivity after the noise superposition of many extension units can cause adjacent area to intercept success rate; Meanwhile, in identical networking, the extension unit of novel room subsystem different directions may receive the signal of same Pin Yi community, and then causes the rear serious interference of each extension unit Received signal strength superposition thus reduce intercepting success rate; In addition, because novel room subsystem adopts netting twine passback, can upstream bandwidth be limited to and cause the service area in SON process under the administration of base station or partial service district cannot provide business service, affecting Consumer's Experience, so need to compress time of intercept to greatest extent.
Prior art for room subsystem different extension unit noise and/or interference superposition suppressing method mainly comprise following three kinds of methods:
Method one: extension unit is traversal one by one.Though the method can effectively suppress different extension unit noise and/or interference superposition to ensure to intercept success rate, but carry out adjacent area intercept because needs travel through extension unit one by one, consuming timely longly can affect business service owing to intercepting, and the adjacent area not being suitable for novel room subsystem is intercepted.
Method two: carrier slots or time-frequency fine granularity power shutdown method, the method deposits problem both ways: problem one, and noise gate is difficult to rationally determine, easily causes that noise suppressed is not obvious or useful signal is undetected thus; Problem two, when different extension unit receives different districts homogenous frequency signal and power is greater than thresholding, serious interference after signal between extension unit can be caused to merge.Therefore, the method cannot ensure to intercept success rate, and the adjacent area not being suitable for novel room subsystem is intercepted.
Method three: lower receiver gain method, the method is by reducing the absolute power of noise, but SNR (Signal to Noise Ratio signal to noise ratio) cannot improve, link performance finally cannot be brought to improve, in the more situation of the method, the spuious of part active device can be inhibit because link gain reduces, finally cause link noise to improve a little, but DeGrain.Meanwhile, the method easily causes receiving sensitivity to decline.Therefore, the method cannot ensure to intercept success rate, and the adjacent area not being suitable for novel room subsystem is intercepted.
In sum, in currently available technology, intercept the method for adjacent area for room subsystem, or effectively cannot solve different extension unit noise and/or interference in the process of intercepting superpose and cause intercepting the low problem of success rate, or intercepting in process consuming time long.
Summary of the invention
A kind of method and apparatus of intercepting adjacent area that the embodiment of the present invention provides, in order to solve the method intercepting adjacent area for room subsystem existed in prior art, effectively cannot solve different extension unit noise and/or interference in the process of intercepting superpose and cause intercepting the low problem of success rate, or intercept long problem consuming time in process.
A kind of method intercepting adjacent area that the embodiment of the present invention provides, the method comprises:
Extension unit is divided into by baseband processing unit N number ofly intercepts group, and N is positive integer;
Intercept group for one, described baseband processing unit according to described in intercept the quality of reception of each extension unit separately on each frequency to be intercepted in group, select an extension unit from described intercepting group;
Described baseband processing unit opens the described extension unit selected, and intercepts remaining extension unit in group described in closing, and the signal received on frequency to be intercepted by the extension unit of described unlatching, determines the cell information of adjacent area.
A kind of equipment of intercepting adjacent area that the embodiment of the present invention provides, this equipment comprises:
Grouping module, N number ofly intercept group for being divided into by extension unit, N is positive integer;
Selecting module, for intercepting group for one, according to the described quality of reception of each extension unit separately on each frequency to be intercepted intercepted in group, selecting an extension unit from described intercepting group;
Determination module, for opening the described extension unit of selection, and intercept remaining extension unit in group described in closing, the signal received on frequency to be intercepted by the extension unit of described unlatching, determines the cell information of adjacent area.
Carrying out intercepting in the process of adjacent area for room subsystem, because the present invention can intercept by each the cell information that the extension unit selected in group determines adjacent area, thus effectively can avoid the impact of noise and/or interference superposition on different extension unit broadcast channel, effectively improve adjacent area and intercept success rate; Meanwhile, owing to the present invention is based on each group of intercepting to determine the cell information of adjacent area, effectively reduce non-broadcasting frequency sky sweep consuming time, thus, comparatively extension unit traversal one by one in prior art, intercepts and consuming timely greatly to reduce.
Accompanying drawing explanation
The schematic flow sheet of intercepting the method for adjacent area that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 intercepts the room subsystem network topology schematic diagram of adjacent area method for application that the embodiment of the present invention provides;
The structural representation of intercepting the equipment of adjacent area that Fig. 3 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method intercepting adjacent area, and the method comprises: extension unit is divided into by baseband processing unit N number ofly intercepts group, and N is positive integer; Intercept group for one, baseband processing unit, according to the quality of reception of each extension unit of intercepting in group separately on each frequency to be intercepted, selects an extension unit from intercepting group; Baseband processing unit opens the extension unit selected, and remaining extension unit in group is intercepted in closedown, and the signal received on frequency to be intercepted by the extension unit opened, determines the cell information of adjacent area.Carrying out intercepting in the process of adjacent area for room subsystem, because the present invention can intercept by each the cell information that the extension unit selected in group determines adjacent area, thus effectively can avoid the impact of noise and/or interference superposition on different extension unit broadcast channel, effectively improve adjacent area and intercept success rate; Meanwhile, owing to the present invention is based on each group of intercepting to determine the cell information of adjacent area, effectively reduce non-broadcasting frequency sky sweep consuming time, thus, comparatively extension unit traversal one by one in prior art, intercepts and consuming timely greatly to reduce.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the method intercepting adjacent area that the embodiment of the present invention provides comprises:
Step 101, extension unit is divided into by baseband processing unit N number ofly intercepts group, and N is positive integer;
Step 102, intercepts group for one, and baseband processing unit, according to the quality of reception of each extension unit of intercepting in group separately on each frequency to be intercepted, selects an extension unit from intercepting group;
Step 103, baseband processing unit opens the extension unit selected, and remaining extension unit in group is intercepted in closedown, and the signal received on frequency to be intercepted by the extension unit opened, determines the cell information of adjacent area.
In enforcement, group is intercepted for one, baseband processing unit carries out intercepting of adjacent area on each frequency to be intercepted, concrete process is, baseband processing unit is according to the sum of extension unit, and eachly to be dividedly intercept the various information such as the positional information of the extension unit of group, all extension units of intercepting group to be divided are divided into N number of group of intercepting; Based on divide N number of to intercept in group each intercepts group, baseband processing unit processes for each group of intercepting successively, group is intercepted for one of them, baseband processing unit intercepts the quality of reception of each extension unit separately on each frequency to be intercepted in group according to this, select an extension unit from intercepting group; Baseband processing unit carries out Signal reception based on the extension unit chosen on current frequency, completes and resolves (cell information namely determining to need the adjacent area of adding) based on the current neighboring BS information organizing current frequency of intercepting.
The method intercepting adjacent area provided by the invention not only can be used in the subsystem of room, simultaneously also can be applied among other applied environment needing to carry out intercepting adjacent area, and for convenience of description, the present invention only intercepts be described to carry out adjacent area in the subsystem of room.As Fig. 2, the present invention enumerates a detailed example, is applied in the subsystem of room by the method intercepting adjacent area provided by the invention, and the room subsystem network topology schematic diagram of adjacent area method is intercepted in the application that namely embodiment of the present invention provides; Shown in Fig. 2, base station comprises baseband processing unit, expanding element 0 and 16 extension units.For Fig. 2, the method intercepting adjacent area of the present invention is described below.
In enforcement, N number ofly group is intercepted for being divided into by extension unit, as shown in Figure 2, extension unit 000, 001, 002, 003, 004, 005, 006, 007 is connected with baseband processing unit via expanding element 0 by port 0, extension unit 010, 011, 012, 013, 014, 015, 016, 017 is connected with baseband processing unit via expanding element 0 by port one, because the equipment above port 0 one ins succession one, therefore, physically adjacent each other, if at this moment each group of intercepting comprises four extension units, then can the extension unit 000 above port 0, 001, 002, 003 is divided into one group, 004, 005, 006, 007 is divided into other one group, so just can ensure that physically adjacent extension unit has been divided into one group, demodulation efficiency can be promoted.Meanwhile, by physically adjacent dividing elements be one group of impact that also effectively can reduce co-channel interference.
Baseband processing unit intercepts group based on each successively, (namely determining the cell information of adjacent area) is resolved in the adjacent area of carrying out intercepting each frequency in frequency range, detailed process is: baseband processing unit is first based on intercepting group 0, complete and intercept group 0 time, intercept in frequency range need to be intercepted frequency adjacent area resolve, then be switched to again and intercept group 1, complete and intercept group 1 time, the adjacent area of intercepting all frequencies in frequency range is resolved, analogize in this way, until complete all parsings intercepting group, described intercepting frequency range needs to be intercepted frequency, can be all frequencies in whole frequency range, also can be a part of frequency wherein, specifically can come according to configuration.
Extension units all under this base station is divided into by the baseband processing unit comprised in base station N number ofly intercepts group, and extension unit of intercepting group to be divided can be extension unit all under base station; Also can be all borders extension unit under base station, border extension unit wherein refers to that the coverage of this extension unit and the coverage of other communities exist physics neighbouring relations.
Baseband processing unit intercepts group based on each successively, (namely determining the cell information of adjacent area) is resolved in the adjacent area of carrying out intercepting each frequency in frequency range, wherein, the cell information that the information obtained is the adjacent area will adding adjacent area for baseband processing unit is resolved in adjacent area, simultaneously, the much informations such as the cell information of adjacent area can comprise cell ID ID, community physics frequency point number.In enforcement, the present invention mainly for one intercept that group once intercepts that the situation of an adjacent area carries out illustrate, according to different applied environments, also possibility one is intercepted group and can be intercepted multiple adjacent area simultaneously, but the operation principle of reality is similar, for convenience of description, the present invention only intercepts for one the situation that group intercepts an adjacent area and is described.
In enforcement, baseband processing unit can be switched to listen mode completely, carries out and intercepts operation, stop normal business service between listen period based on the group of intercepting divided; Or baseband processing unit carries out intercepting operation based on the current group of intercepting performing the process of intercepting, to intercept beyond group based on current and have other extension units of autonomous channel to carry out business service to the corresponding area of coverage to baseband processing unit.
As shown in Figure 2, extension unit abc, wherein a represents the call number of expanding element, and b represents the port numbers on expanding element, and c represents the numbering of same expanding element same port number extension unit above.In force, baseband processing unit, expanding element 0, extension unit 000, extension unit 001, extension unit 002, extension unit 003, extension unit 004, extension unit 005, extension unit 006, extension unit 007, extension unit 010, extension unit 011, extension unit 012, extension unit 013, extension unit 014, extension unit 015, extension unit 016, extension unit 017 is adopted to work in coordination with covering, wherein above-mentioned 16 extension units carry same cell signal, carry out degree of depth covering.
The method of what the embodiment of the present invention provided intercept adjacent area, first will be divided into extension units of intercepting group to be divided all in base station and N number ofly intercept group, and then is intercepted group execution intercepted process by each.First introduce in detail below how to divide and intercept group.
Preferably, all extension units of intercepting group to be divided are divided into by baseband processing unit N number ofly intercepts group, comprising:
Baseband processing unit is according to the sum of extension unit, and each positional information intercepting the extension unit of group to be divided, is divided into by all extension units of intercepting group to be divided N number ofly to intercept group.
That is, each extension unit is when being connected to baseband processing unit, just each extension unit geographical location information is separately fed back to baseband processing unit, so that baseband processing unit extension unit is divided into N number of intercept group time, extension unit adjacent for geographical position can be divided into and samely intercept in group; Meanwhile, baseband processing unit, when group is intercepted in division, also needs the information such as the sum of consideration extension unit.In enforcement, according to the needs of MPS process, the position of extension unit can be fixed, and also can put at random.
According to the numbering of extension unit in Fig. 2, on port 08 extension unit is divided into and intercepts group 0, on port one 8 extension unit is divided into and intercepts group 1, suppose to need the frequency number of intercepting to be 5, be followed successively by absolute wireless channel numbering ARFCN0, ARFCN1, ARFCN2, ARFCN3, ARFCN4, and there is CELL0 in ARFCN0, CELL1 Liang Ge community, there is not any community in other frequencies, CELL0, CELL1 lay respectively at distributed system cover south orientation and the north orientation of building, the extension unit of wherein intercepting group 0 is laid on the south orientation of building, the signal receiving CELL0 when therefore intercepting is stronger, and be laid on the north orientation of building due to the extension unit of intercepting group 1, the signal receiving CELL1 when therefore intercepting is stronger.
When group is intercepted in division, the value of N can be calculated by following formula, but is not limited to computational methods provided by the invention, as long as the method that can divide extension unit may be used to obtain the value of N.The computational process of the numerical value of N of group is intercepted in a kind of division that lower mask body introduces the embodiment of the present invention to be provided.
Preferably, baseband processing unit determines the value of N according to following manner:
Each value intercepting the extension unit number R that group comprises meets following formula:
R＝floor(10^((Y-X)/10))
The value intercepting the number N of group divided meets following formula:
N＝Ceil(M/R)
Wherein, Y is the demodulation signal to noise ratio snr thresholding of CBCH; X is the demodulation SNR thresholding of cell synchronization channels; M is the sum of extension unit; ^ is power operation; Floor () rounds downwards; Ceil () rounds up.
In enforcement, suppose that graded combination extension unit also in novel room adds up to M, the demodulation SNR thresholding of cell synchronization channels is X, the demodulation SNR thresholding of CBCH is Y, it is then each that to intercept the extension unit number R value that group comprises be floor (10^ ((Y-X)/10)), the value of N is Ceil (M/R), wherein floor () expression rounds downwards, Ceil () expression rounds up, such as, the value of floor (3.3) is the value of 3, Ceil (3.3) is 4.
As shown in Figure 2, suppose to give baseband processing unit by 16 extension units are finally direct by after data investigation, therefore, graded combination extension unit sum M value also in novel room is 16, if the demodulation SNR thresholding X value of current covering system cell synchronization channels is-2db, the thresholding Y value of broadcast channel demodulation SNR is 7.1db, then by converting, can learn, it is each that to intercept the extension unit number R value that group comprises be floor (10^ ((7.1-(-2))/10)), be 8, obtain intercept group quantity N be Ceil (16/8), be 2.
In enforcement, according to divide to intercept in group each intercepts group, baseband processing unit can calculate separately the quality of reception of wherein each extension unit, and lower mask body is introduced.
Preferably, baseband processing unit, according to the quality of reception of each extension unit of intercepting in group separately on each frequency to be intercepted, comprising:
Baseband processing unit merges intercepting the Received signal strength of all extension units on each frequency to be intercepted in group;
Base station is except comprising baseband processing unit and extension unit, also comprise multiple expanding element, the data cascade of the extension unit of each group superposition is mainly used in be merged into expanding element, so that the data of the reception of multiple extension unit can be passed to baseband processing unit by expanding element.
As shown in Figure 2, expanding element 0 has two ports, i.e. port 0 and port one; Eight extension units on port 0 adopt the mode of cascade superposition to converge to expanding element 0 by port 0; Eight extension units on port one adopt the mode of cascade superposition to converge to expanding element 0 by port one, and then expanding element 0 is again after the data investigation on port 0 and port one, gives baseband processing unit.
Intercept group for each, the Received signal strength after merging according to extension units all in this group, the synchronizing channel completing adjacent area detects, and lower mask body is introduced.
Preferably, the synchronizing channel that baseband processing unit completes adjacent area according to the Received signal strength after merging detects, and completes the timing alignment of baseband processing unit and adjacent area according to the result detected;
That is, group is intercepted for each, Received signal strength after baseband processing unit merges according to extension units all in this group, the cell synchronization channels carrying out adjacent area detects, if the cell synchronization channels of CELL0 now detected, then baseband processing unit utilizes the testing result of synchronizing channel to carry out the timing alignment of this baseband processing unit, baseband processing unit this baseband processing unit alignd (timing alignment namely completing baseband processing unit and adjacent area according to the result detected), so that can intercept to the signal of CELL0 with CELL0 frame timing boundary.
As shown in Figure 2, baseband processing unit is first based on intercepting group 0, on frequency ARFCN0, superpose the signal being aggregated into port 0 carry out cell synchronization channels detection based on extension unit 000, extension unit 001, extension unit 002, extension unit 003, extension unit 004, extension unit 005, extension unit 006, extension unit 007 cascade, the cell synchronization channels of CELL0 now detected, then, baseband processing unit utilizes the testing result of synchronizing channel to carry out the timing alignment of baseband processing unit, and this baseband processing unit is alignd with CELL0 frame timing boundary.
In enforcement, when all extension units of intercepting group 0 carry out cell synchronization channels detection, intercept all extension units in group 1, i.e. extension unit 010, extension unit 011, extension unit 012, extension unit 013, extension unit 014, extension unit 015, extension unit 016, extension unit 017 Close All, until baseband processing unit complete based on intercept group 0 wait intercept in frequency range need to be intercepted frequency adjacent area resolve after, be switched to intercept group 1 carry out wait intercept all frequencies in frequency range adjacent area resolve time, open all extension units of intercepting in group 1, and close all extension units of intercepting in group 0.
After baseband processing unit completes the timing alignment with adjacent area, just can estimate quality of reception when intercepting that in group, each extension unit works independently, lower mask body is introduced.
Preferably, for each extension unit of intercepting in group, when each extension unit works independently by baseband processing unit, at least one time slot of the adjacent area of reception carries out demodulation, quality of reception when determining that each extension unit of intercepting in group works independently according to demodulation result.
In enforcement, baseband processing unit, on frequency current to be intercepted, opens the time slot demodulation that a current independent extension unit of intercepting in group carries out adjacent area one by one, and quality of reception when estimating that this extension unit works independently according to demodulation result.
Preferably, quality of reception when baseband processing unit determines that each extension unit of intercepting in group works independently according to demodulation result, comprising:
When working independently for an extension unit, if the time slot of adjacent area that extension unit is caught comprises multiple; Multiple time slots of the adjacent area of catching are carried out demodulation by baseband processing unit, obtain corresponding mass value;
Quality of reception when baseband processing unit selects best quality value to work independently as extension unit; Or all mass values demodulation obtained are weighted average treatment, and the quality of reception when mass value after process is worked independently as extension unit.
That is, baseband processing unit open current intercept one of them extension unit of group after, now receive the link of intercepting signal and only have this extension unit, then, baseband processing unit is caught at least one time slot based on this extension unit and is carried out demodulation, obtain corresponding mass value, to estimate the quality of reception of this extension unit.The method of the described estimation quality of reception, specifically can comprise following two kinds of methods: based on the mass value of at least one time slot demodulation, select best quality value as this extension unit quality of reception, or based on the mass value of at least one time slot demodulation, be weighted average, using the mass value after weighted average as this extension unit quality of reception.
In enforcement, baseband processing unit unlatching is intercepted extension unit 000 in group 0 and (is now intercepted other extension units in group 0 to close, intercept the extension unit also contract fully of group 1), carry out the reception of time slot and estimate that its quality of reception obtains estimated value SNR0, then unlatching is intercepted extension unit 001 in group 0 and (is now intercepted other extension units closedown in group 0 again, intercept the extension unit also contract fully of group 1), carry out the reception of time slot and estimate that its quality of reception obtains estimated value SNR1, the like, estimate SNR2, SNR7, then, baseband processing unit is from SNR0, best value is selected in SNR7, if best value is SNR7, then determine that optimum reception extension unit is the extension unit 007 (quality of reception when namely baseband processing unit selects best quality value to work independently as extension unit) that SNR7 is corresponding, so baseband processing unit is selected to intercept extension unit 007 in group 0 and is opened and (now to intercept in group 0 other extension units to close, other intercept the extension unit also contract fully of group), then, the broadcast of baseband processing unit to CELL0 is resolved, one piece is not superimposed upon with the signal of intercepting group 1 owing to intercepting group 0, therefore the system message of CELL0 can successfully resolved.
In enforcement, when estimating quality of reception when intercepting that in group 0, each extension unit works independently, if it is multiple for intercepting group 0 to the adjacent area number that should be able to listen to, then baseband processing unit needs to select multiple extension unit from intercepting group 0, and when intercepting group 0 and carrying out adjacent area parsing by the multiple extension units selected, baseband processing unit will open multiple extension units of selection, remaining extension unit in group 0 (now other intercept the extension unit also contract fully of group) is intercepted in closedown, then, the broadcast of baseband processing unit to multiple adjacent area is resolved (cell information namely determining adjacent area).
In enforcement, baseband processing unit is after the cell information determining adjacent area, and can carry out merging to the cell information of the adjacent area determined and gather, lower mask body is introduced.
Preferably, baseband processing unit also comprises after determining the cell information of adjacent area:
Baseband processing unit is intercepted each cell information of intercepting the adjacent area that group is determined in group merge N number of, and exports the cell information of intercepting all adjacent areas that adjacent area obtains according to the result merged.
That is, baseband processing unit is intercepted after group determines the cell information of adjacent area each, each cell information of intercepting all adjacent areas that group is determined is carried out union operation, wherein merge the expanding element comprised primarily of base station to have come, after the cell information completing adjacent area merges, baseband processing unit exports the cell information of intercepting all adjacent areas that adjacent area obtains according to the result merged.
Preferably, baseband processing unit is intercepted each cell information of intercepting the adjacent area that group is determined in group merge N number of, comprising:
If intercept each in group intercepting in the cell information of the adjacent area that group is determined N number of, there is the cell information of multiple identical adjacent area, baseband processing unit only retains the cell information of one of them adjacent area, rejects the cell information of unnecessary adjacent area.
In enforcement, each is intercepted the result that group intercepts and gathers merging by baseband processing unit, export adjacent area intercepted result, specific practice is, baseband processing unit is intercepted each adjacent area that group listens to and is carried out gathering merging, for the neighboring BS information that there is many group identical datas, only retains one group, unnecessary data are deleted, then exports the intercepted result of the cell information not with repetition adjacent area.
Such as, complete intercept group 0 on frequency ARFCN0 intercept the process of adjacent area after, baseband processing unit completes successively again intercepts group 0 at frequency ARFCN1, ARFCN2, ARFCN3, adjacent area on ARFCN4 is intercepted, then baseband processing unit is switched to and intercepts group 1, complete ARFCN0 successively, ARFCN1, ARFCN2, ARFCN3, ARFCN4 intercepts, and then all adjacent areas completing baseband processing unit are resolved, similarly, based on intercept group 1 carry out adjacent area intercept time, one piece is not superimposed upon with the signal of intercepting group 1 owing to intercepting group 0, therefore the system message of CELL1 can successfully resolved.
In enforcement, if the upstream bandwidth between expanding element and baseband processing unit is enough, can consider the cascade stack result the port 0 of expanding element, the cascade stack result of the port one of expanding element, gives baseband processing unit respectively by different passage.When utilize the port 0 of expanding element carry out adjacent area intercept time, the port one of expanding element carries out normal business service, when carrying out when utilizing the port one of expanding element intercepting, the port 0 of expanding element carries out normal business service, reduce with this area surface that process of intercepting causes business service to be interrupted, further lifting scheme is worth.
In sum, adopting the method intercepting adjacent area provided by the invention, intercepting group by dividing, effectively overcome CELL0, CELL1 co-channel interference on ARFCN0, finally completely parse the cell parameter of CELL0, CELL1, and then the subsequent process of SON can have been completed.On the contrary, if the time-frequency proposed in employing prior art turns off scheme, because at least one extension unit of intercepting in group 0 receives the signal of CELL0 on frequency ARFCN0, and at least one extension unit of intercepting in group 1 receives the signal of CELL1 on frequency ARFCN0, and their signal strength signal intensity quite and be all greater than time-frequency turn off thresholding, after causing 16 extension unit superpositions, produce serious co-channel interference and the demodulation threshold of broadcast channel cannot be met, the cell parameter of final CELL0, CELL1 all solution not out, SON effect is bad.
Compared with extension unit one by one traversal, the present invention superposes loss of equal value due to cell synchronization channels is scaled different extension unit noise compared with the demodulation gain of CBCH, although the demodulation adopting the signal after intercepting all extension unit merging of group to carry out cell synchronization channels causes penalty, but the cell synchronization channels after worsening is consistent with the demodulation performance of CBCH, what do not affect adjacent area resolves to power, and during CBCH demodulation, because the best extension unit by selecting receives, not by the impact of different extension unit noise superposition, therefore adjacent area is intercepted success rate and extension unit traversal is suitable one by one, as for intercepting aspect consuming time, intercept group carry out cell synchronization channels parsing owing to the present invention is based on, effectively reduce non-broadcasting frequency sky sweep consuming time, simultaneously, selecting of best extension unit, also the consuming time of demodulation broadcast channel can effectively be reduced, therefore, the present invention is extension unit traversal one by one comparatively, intercept and consuming timely greatly to reduce, the influence degree of process to regular traffic is intercepted in effective minimizing.
Simultaneously, the method intercepting adjacent area provided by the invention, effectively can utilize synchronizing channel sensitivity and the strong feature of antijamming capability, cell synchronization channels is scaled different extension unit noise compared with the demodulation gain of broadcast channel superpose loss of equal value to divide and intercept group, under the condition intercepting all extension unit Signal averaging in group, complete synchronizing channel detect and timing adjustment, then utilize time slot quality estimation to carry out quick lock in optimum reception extension unit, effectively reduction is intercepted consuming time; Simultaneously, adjacent area parsing is finished receiving by carrying out broadcast channel based on the best extension unit after selection, effectively avoid the impact of noise and/or interference superposition on different extension unit broadcast channel, success rate is intercepted in effective lifting, the impact on business service is intercepted in final effectively reduction adjacent area, and promote adjacent area and intercept success rate, for the SON feasibility of novel room subsystem provides advantageous aspects.
Based on same inventive concept, a kind of equipment of intercepting adjacent area is additionally provided in the embodiment of the present invention, because the method that the equipment of intercepting adjacent area of Fig. 3 is corresponding is a kind of method intercepting adjacent area of the embodiment of the present invention, therefore the enforcement of embodiment of the present invention equipment see the enforcement of method, can repeat part and repeats no more.
As shown in Figure 3, a kind of equipment of intercepting adjacent area of the embodiment of the present invention comprises: grouping module 301, selection module 302, determination module 303 and merging module 304;
Grouping module 301, N number ofly intercept group for being divided into by extension unit, N is positive integer;
Selecting module 302, for intercepting group for one, according to the quality of reception of each extension unit of intercepting in group separately on each frequency to be intercepted, selecting an extension unit from intercepting group;
Determination module 303, for opening the extension unit of selection, and remaining extension unit in group is intercepted in closedown, and the signal received on frequency to be intercepted by the extension unit opened, determines the cell information of adjacent area.
Preferably, grouping module 301 specifically for:
According to the sum of extension unit, and each positional information intercepting the extension unit of group to be divided, all extension units of intercepting group to be divided are divided into and N number ofly intercept group.
Preferably, grouping module 301 determines the value of N according to following manner:
Each value intercepting the extension unit number R that group comprises meets following formula:
R＝floor(10^((Y-X)/10))
The value intercepting the number N of group divided meets following formula:
N＝Ceil(M/R)
Wherein, Y is the demodulation signal to noise ratio snr thresholding of CBCH; X is the demodulation SNR thresholding of cell synchronization channels; M is the sum of extension unit; ^ is power operation; Floor () rounds downwards; Ceil () rounds up.
Preferably, select module 302 specifically for:
Merge intercepting the Received signal strength of all extension units on each frequency to be intercepted in group; The synchronizing channel completing adjacent area according to the Received signal strength after merging detects, and completes the timing alignment of baseband processing unit and adjacent area according to the result detected; For each extension unit of intercepting in group, when being worked independently by each extension unit, at least one time slot of the adjacent area of reception carries out demodulation, quality of reception when determining that each extension unit of intercepting in group works independently according to demodulation result.
Preferably, select module 302 specifically for:
When working independently for an extension unit, if the time slot of adjacent area that extension unit is caught comprises multiple; Multiple time slots of the adjacent area of catching are carried out demodulation, obtains corresponding mass value;
Quality of reception when selecting best quality value to work independently as extension unit; Or all mass values demodulation obtained are weighted average treatment, and the quality of reception when mass value after process is worked independently as extension unit.
Preferably, this equipment also comprises:
Merge module 304, for intercepting each cell information of intercepting the adjacent area that group is determined in group merge N number of, and export the cell information of intercepting all adjacent areas that adjacent area obtains according to the result merged.
Preferably, merge module 304 specifically for:
Intercept each in group intercepting in the cell information of the adjacent area that group is determined if N number of, there is the cell information of multiple identical adjacent area, only retain the cell information of one of them adjacent area, reject the cell information of unnecessary adjacent area.
Carrying out intercepting in the process of adjacent area for room subsystem, because the present invention can intercept by each the cell information that the extension unit selected in group determines adjacent area, thus effectively can avoid the impact of noise and/or interference superposition on different extension unit broadcast channel, effectively improve adjacent area and intercept success rate; Meanwhile, owing to the present invention is based on each group of intercepting to determine the cell information of adjacent area, effectively reduce non-broadcasting frequency sky sweep consuming time, thus, comparatively extension unit traversal one by one in prior art, intercepts and consuming timely greatly to reduce.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Claims (14)
1. intercept a method for adjacent area, it is characterized in that, the method comprises:
Extension unit is divided into by baseband processing unit N number ofly intercepts group, and N is positive integer;
Intercept group for one, described baseband processing unit according to described in intercept the quality of reception of each extension unit separately on each frequency to be intercepted in group, select an extension unit from described intercepting group;
Described baseband processing unit opens the described extension unit selected, and intercepts remaining extension unit in group described in closing, and the signal received on frequency to be intercepted by the extension unit of described unlatching, determines the cell information of adjacent area.
2. method according to claim 1, is characterized in that, all extension units of intercepting group to be divided are divided into by described baseband processing unit N number ofly intercepts group, comprising:
Described baseband processing unit is according to the sum of extension unit, and each positional information intercepting the extension unit of group to be divided, is divided into by all extension units of intercepting group to be divided N number ofly to intercept group.
3. method according to claim 2, is characterized in that, described baseband processing unit determines the value of N according to following manner:
Described each value intercepting the extension unit number R that group comprises meets following formula:
R＝floor(10^((Y-X)/10))
The value intercepting the number N of group of described division meets following formula:
N＝Ceil(M/R)
Wherein, Y is the demodulation signal to noise ratio snr thresholding of CBCH; X is the demodulation SNR thresholding of cell synchronization channels; M is the sum of described extension unit; ^ is power operation; Floor () rounds downwards; Ceil () rounds up.
4. method according to claim 1, is characterized in that, described baseband processing unit according to described in intercept the quality of reception of each extension unit separately on each frequency to be intercepted in group, comprising:
Described baseband processing unit is intercepted the Received signal strength of all extension units on each frequency to be intercepted in group merge described;
The synchronizing channel that described baseband processing unit completes adjacent area according to the Received signal strength after merging detects, and completes the timing alignment of described baseband processing unit and described adjacent area according to the result detected;
For described each extension unit of intercepting in group, when described each extension unit works independently by described baseband processing unit, at least one time slot of the described adjacent area received carries out demodulation, quality of reception when each extension unit of intercepting described in determining according to demodulation result in group works independently.
5. method according to claim 4, is characterized in that, described baseband processing unit determine according to demodulation result described in the quality of reception of each extension unit of intercepting in group when working independently, comprising:
When working independently for an extension unit, if the time slot of described adjacent area that described extension unit is caught comprises multiple; Multiple time slots of the described adjacent area of catching are carried out demodulation by described baseband processing unit, obtain corresponding mass value;
Quality of reception when described baseband processing unit selects best quality value to work independently as described extension unit; Or all mass values demodulation obtained are weighted average treatment, and the quality of reception when mass value after process is worked independently as described extension unit.
6. method according to claim 1, is characterized in that, described baseband processing unit also comprises after determining the cell information of adjacent area:
Described baseband processing unit is N number ofly intercepted each cell information of intercepting the described adjacent area that group is determined in group by described and is merged, and exports the cell information of intercepting all adjacent areas that adjacent area obtains according to the result merged.
7. method according to claim 6, is characterized in that, described baseband processing unit is N number ofly intercepted each cell information of intercepting the described adjacent area that group is determined in group by described and merged, and comprising:
If N number ofly intercept each in group intercepting in the cell information of the described adjacent area that group is determined described, there is the cell information of multiple identical adjacent area, described baseband processing unit only retains the cell information of one of them adjacent area, rejects the cell information of unnecessary adjacent area.
8. intercept an equipment for adjacent area, it is characterized in that, this equipment comprises:
Grouping module, N number ofly intercept group for being divided into by extension unit, N is positive integer;
Selecting module, for intercepting group for one, according to the described quality of reception of each extension unit separately on each frequency to be intercepted intercepted in group, selecting an extension unit from described intercepting group;
Determination module, for opening the described extension unit of selection, and intercept remaining extension unit in group described in closing, the signal received on frequency to be intercepted by the extension unit of described unlatching, determines the cell information of adjacent area.
9. equipment according to claim 8, is characterized in that, described grouping module specifically for:
According to the sum of extension unit, and each positional information intercepting the extension unit of group to be divided, all extension units of intercepting group to be divided are divided into and N number ofly intercept group.
10. equipment according to claim 9, is characterized in that, described grouping module determines the value of N according to following manner:
Described each value intercepting the extension unit number R that group comprises meets following formula:
R＝floor(10^((Y-X)/10))
The value intercepting the number N of group of described division meets following formula:
N＝Ceil(M/R)
Wherein, Y is the demodulation signal to noise ratio snr thresholding of CBCH; X is the demodulation SNR thresholding of cell synchronization channels; M is the sum of described extension unit; ^ is power operation; Floor () rounds downwards; Ceil () rounds up.
11. equipment according to claim 8, is characterized in that, described selection module specifically for:
Intercept the Received signal strength of all extension units on each frequency to be intercepted in group merge described; The synchronizing channel completing adjacent area according to the Received signal strength after merging detects, and completes the timing alignment of described baseband processing unit and described adjacent area according to the result detected; For described each extension unit of intercepting in group, when described each extension unit is worked independently, at least one time slot of the described adjacent area received carries out demodulation, quality of reception when each extension unit of intercepting described in determining according to demodulation result in group works independently.
12. equipment according to claim 11, is characterized in that, described selection module specifically for:
When working independently for an extension unit, if the time slot of described adjacent area that described extension unit is caught comprises multiple; Multiple time slots of the described adjacent area of catching are carried out demodulation, obtains corresponding mass value;
Quality of reception when selecting best quality value to work independently as described extension unit; Or all mass values demodulation obtained are weighted average treatment, and the quality of reception when mass value after process is worked independently as described extension unit.
13. equipment according to claim 8, is characterized in that, this equipment also comprises:
Merge module, for N number ofly intercepting each cell information of intercepting the described adjacent area that group is determined in group by described and merge, and export the cell information of intercepting all adjacent areas that adjacent area obtains according to the result merged.
14. equipment according to claim 13, is characterized in that, described merging module specifically for:
N number ofly intercept each in group intercepting in the cell information of the described adjacent area that group is determined if described, there is the cell information of multiple identical adjacent area, only retain the cell information of one of them adjacent area, reject the cell information of unnecessary adjacent area.
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