CN101677444B - Method and equipment for automatically configuring physical layer identifications of cells - Google Patents
Method and equipment for automatically configuring physical layer identifications of cells Download PDFInfo
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Abstract
The invention provides a method and equipment for automatically configuring physical layer identifications of cells, belonging to the technical field of telecommunication. The method comprises the following steps: firstly, dividing the surrounding regions of an evolution base station into a plurality of subregions; and then respectively receiving wireless signals in each subregion; demodulating the received wireless signals so as to obtain the physical layer identifications of cells in each subregion; configuring a physical layer identification different from the physical layer identifications of cells in all subregions for cells served by the evolution base station after obtaining physical layer identifications of cells in all subregions, so that the equipment of the base station can automatically configure physical layer identifications for the cells served by the base station, and the success rate of the received wireless signal demodulation of cells is improved.
Description
Technical field
The present invention relates to technical field of telecommunications, relate in particular to a kind of method and apparatus of physical layer identifications of automatic allocating cell.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) system, the physical layer identifications of available sub-district (Phy-CID, Physical layer Cell Identity) has only 504, and this just means that Phy-CID will inevitably reuse in bigger network.Though in whole network, have the identical Phy-CID of different cell configuration, the Phy-CID configuration of each sub-district must be followed following two principles: identical Phy-CID can not be used in one, two adjacent sub-districts of principle; Can not have any two to have identical Phy-CID in all adjacent areas of two, sub-district of principle, these two principles are to guarantee that UE (subscriber equipment) can not discern two different sub-districts in a zone.
Phy-CID is a basic initial configuration parameter.This parameter is to be configured by manual work in the network planning stage in traditional mobile network, perhaps utilizes the Software tool of specialty to distribute.And in the LTE system,, hope that base station equipment can automatically dispose the Phy-CID of this base station cell based on the demand of automatic configuration, and do not need artificial participation.
A kind of existing method is to utilize wireless scanner to obtain the information of peripheral cell; Dispose the Phy-CID of this sub-district again, basic principle is the scanning receiving system of a similar mobile terminal antenna of equipment in the base station; Perhaps use the reception antenna of base station self; When installed for the first time the base station, the wireless signal through the LTE system cell around radio scanner (perhaps reception antenna) detection carried out the Phy-CIDs that demodulation can obtain some peripheral cells to these signals; The base station is that oneself cell selecting is with the different ID of these Phy-CIDs, to avoid conflict and to obscure then.
In realizing process of the present invention; Find to exist at least in the prior art following problem: because the position of the antenna of base station or receiver is different with the terminal; Normally be positioned at the top of building, possibly receive the wireless signal of the quite a lot of sub-district of quantity, under some specific condition; Even the far wireless signal of distance also can receive, and has suitable intensity.When one of them echo signal of demodulation was attempted in the base station, other wireless signal was equivalent to interference signal, and is a lot of if the composite strength of interference signal surpasses echo signal; Can cause the demodulation failure; Its result is exactly, can't right demodulation to the wireless signal that receives, also just can not obtain the Phy-CIDs of these sub-districts; And then also just can't be suitable for the automatic configuration in the sub-district at place, base station, satisfy the physical layer identifications of aforementioned two principles simultaneously.
Summary of the invention
In order to address the above problem; Embodiments of the invention provide a kind of method and apparatus of physical layer identifications of automatic allocating cell; Through improving success rate, realize that the base station automatically disposes the purpose of physical layer identifications of the sub-district of this base station services to the district wireless signals demodulation that receives.
In order to achieve the above object, embodiments of the invention provide a kind of method of physical layer identifications of automatic allocating cell, are used for long evolving system, and said method comprises:
Partiting step is a plurality of subregions with the area dividing around the evolution base station;
Obtaining step receives the wireless signal in each subregion respectively, through the said wireless signal that demodulate reception arrives, obtains the physical layer identifications of the sub-district in said each subregion;
Configuration step, obtain the physical layer identifications of the sub-district in all subregions after, be the physical layer identifications physical layer identifications inequality of the sub-district in one of the cell configuration of said evolution base station service and said all subregions.
Preferably, said subregion is: with said evolution base station is the center of circle, is the sector region of central angle with the γ degree;
Said partiting step is specially: it is 360/ γ that the area dividing around the said evolution base station is become quantity, and the position that belongs to said evolution base station is the center of circle, is the sector region of central angle with the γ degree, and wherein γ is 360 approximate number.
Preferably; Said obtaining step comprises: according to clockwise or be rotated counterclockwise the mode of γ degree; Receive the wireless signal in each sector region respectively,, obtain the physical layer identifications of the sub-district in said each sector region through the said wireless signal that demodulate reception arrives.
Preferably, said obtaining step also comprises: obtain the positional information of the interior sub-district of said each sector region with respect to said evolution base station.
Embodiments of the invention also provide a kind of equipment of physical layer identifications of automatic allocating cell, are applied in the long evolving system, and said equipment comprises:
Divide module, being used for the area dividing around the evolution base station is a plurality of subregions;
Acquisition module is used for receiving the wireless signal in each subregion respectively, through the said wireless signal that demodulate reception arrives, obtains the physical layer identifications of the sub-district in said each subregion; And
Configuration module is used for behind the physical layer identifications of the sub-district that obtains all subregions, is the physical layer identifications physical layer identifications inequality of the sub-district in one of the cell configuration of said evolution base station service and said all subregions.
Preferably, said equipment also comprises: memory module is used to store the physical layer identifications of the sub-district in said all subregions of acquisition.
Preferably, said subregion is: the position with said evolution base station place is the center of circle, is the sector region of central angle with the γ degree, and wherein γ is 360 approximate number;
Said acquisition module comprises: receiving element is used for receiving the wireless signal in each sector region respectively according to clockwise or be rotated counterclockwise the mode of γ degree;
First acquiring unit is used for the said wireless signal that arrives through demodulate reception, obtains the physical layer identifications of the sub-district in said each sector region.
Preferably, said acquisition module also comprises: second acquisition unit is used to obtain the positional information of the interior sub-district of said each sector region with respect to said evolution base station.
A technical scheme in the technique scheme has following beneficial effect: through being a plurality of subregions with eNB (evolution base station) area dividing on every side; Receive the wireless signal in each subregion then respectively; This moment is with respect to receiving in whole space; The quantity of the feasible wireless signal that receives reduces a lot; Also just mean the interference of echo signal is reduced, improved the success rate of the wireless signal of demodulation single subdistrict, thereby reduced the probability that the physical layer identifications of the cell allocation of this base station services clashes with peripheral cell; And in the physical layer identifications that obtains peripheral cell, the relative position information of each sub-district around also can knowing, this can be used for neighboring BS relationship optimization by eNB.
Description of drawings
Fig. 1 is the method flow diagram of the physical layer identifications of automatic allocating cell in the embodiments of the invention;
Fig. 2 is the division sketch map of subregion around the eNB in the embodiments of the invention.
Fig. 3 is the equipment structure chart of the physical layer identifications of automatic allocating cell in the embodiments of the invention.
Embodiment
Embodiments of the invention provide a kind of method and apparatus of physical layer identifications of automatic allocating cell; At first through being a plurality of subregions with the area dividing around the eNB; Receive the wireless signal in each subregion then respectively; And obtain the physical layer identifications of the sub-district in each subregion through this wireless signal of demodulation; Thereby the physical layer identifications physical layer identifications inequality of the sub-district in one of the cell configuration that can be eNB service and all subregions makes it possible to realize the automatic configuration of eNB to the physical layer identifications of the sub-district served.
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation are used to explain the present invention, but not as to qualification of the present invention.
As shown in Figure 1, the method flow diagram for the physical layer identifications of automatic allocating cell in the embodiments of the invention comprises the steps:
Zone around the eNB in this step can be set to, and the position that belongs to eNB is a circle in the center of circle, and the value of the radius that this is circular can be set according to actual conditions, also can other shapes be arranged in the zone around this eNB certainly.Zone around the eNB is set to position with the eNB place when being the center of circle circular, can be the center of circle with should circle being divided into uniformly with eNB, and the γ degree is a plurality of sector regions of central angle; Referring to Fig. 2, the position at A point expression eNB place is 8 sub regions of subregion 1～subregion 8 with the area dividing around the eNB among the figure; Wherein each subregion is the center of circle for the position of ordering with A; Central angle is the sector region of 45 degree, and this sector region is meant the similar fan-shaped zone that is made up of the central angle and the center of circle, and the radius of this sector region is relevant with this eNB performance; When the eNB performance is strong; Can receive longer-distance wireless signal, this moment, the radius of this sector region was just longer, did not limit the concrete shape of above-mentioned subregion in an embodiment of the present invention.
For the ease of understanding, be that example is introduced only below this subregion is arranged to sector region.The value of above-mentioned γ degree, just the number of degrees of this central angle are selected 10 degree, 15 degree, 20 degree, 30 degree, 45 degree etc. for use.Because this subregion is a sector region; So this eNB of the big I of these central angle number of degrees decision institute can obtain wireless signal in the peripheral region how much; When the number of degrees of this central angle are provided with when bigger, for example 90 degree, 120 degree are because the area that this sector region covers is bigger; This eNB can obtain more wireless signal; But the wireless signal with respect to receiving whole space can reduce the influence of interference signal to echo signal to a certain extent, has improved the success rate to the wireless signal demodulation that receives the sub-district; And be provided with when smaller when this central angle, for example 10 degree, 20 degree etc., this moment, this eNB can obtain less wireless signal, can significantly improve the success rate to the wireless signal demodulation that receives the sub-district because the area that this sector region covers is less.Introduced the quantity that controls the received wireless signal of eNB through the central angle of adjusting this sector region above; And then adjust success rate to the wireless signal demodulation that receives the sub-district, be exactly through the performance of the antenna of adjustment radio scanner or eNB, the number of degrees that this central angle is controlled in sensitivity in concrete operations.Certainly also can control the quantity of the received wireless signal of eNB through the radius of adjusting this sector region.
In order to follow two principles of giving the cell configuration physical layer identifications in the prior art, need obtain the eNB physical layer identifications of all sub-districts on every side in the present embodiment.Just, receive the wireless signal in each sector region respectively,, obtain the physical layer identifications of the sub-district in each said sector region through the said wireless signal that demodulate reception arrives according to clockwise or be rotated counterclockwise the mode of γ degree.Referring to Fig. 2, suppose at first to obtain the wireless signal in the subregion 1, the wireless signal that arrives through demodulate reception; Obtain the physical layer identifications of the sub-district in the subregion 1; Turn clockwise then 45 the degree, do same operation, by that analogy; Up to having rotated 360 degree, just obtained from the physical layer identifications of subregion 1～subregion 8 interior sub-districts.Certainly also can obtain the physical layer identifications of sub-district in all subregions according to the mode that is rotated counterclockwise.When employing turns clockwise or during the mode that is rotated counterclockwise,, also just obtained the physical layer identifications of sub-districts in all subregions when having rotated 360 when spending.
Do not limit the sequencing that obtains the physical layer identifications of sub-district in each subregion in the present embodiment, for example can be in a certain order (as: clockwise or counterclockwise), perhaps according at random mode.
In this step, in the wireless signal that demodulate reception arrives, also can obtain the peripheral cell positional information of this eNB relatively; For example sub-district A is in the west side of this eNB; Sub-district B is in the east side of this eNB, and sub-district C is in southeast side of eNB etc., and the positional information of obtaining can be used for doing neighboring BS relationship optimization by eNB.
Just, follow all different physical layer identifications in all sub-districts of detecting for the cell selecting that eNB served.
Can know by technique scheme; Through being a plurality of subregions, receive the wireless signal in each subregion then respectively, with respect to receiving in whole space with the area dividing around the evolution base station; The quantity of the feasible wireless signal that receives reduces a lot; Just mean that also the interference to echo signal reduces, thereby improved the success rate of the wireless signal of demodulation single subdistrict, and in the physical layer identifications that obtains peripheral cell; The relative position information of each sub-district around also can knowing, this can be used for doing neighboring BS relationship optimization by eNB.
In order better to understand embodiments of the invention; Introduce embodiments of the invention below in conjunction with Fig. 2 and concrete example; In this embodiment; ENB obtains the wireless signal of peripheral cell through radio scanner or reception antenna, and wherein the value of γ degree is confirmed according to the performance of radio scanner or reception antenna, sensitivity etc. are autonomous by eNB, for example 10 degree, 15 degree, 20 degree, 30 degree, 45 degree etc.The step of this method is following:
After step 1, the newly deployed eNB start; At first select an inceptive direction; Use radio scanner or reception antenna in subregion, to receive wireless signal; And carry out the demodulation of wireless signal, obtain the physical layer identifications of the sub-district in the subregion, and the current location information of subregion with this cell association together;
For example this inceptive direction is chosen as the direction of subregion 1, obtains the wireless signal in other subregions through rotation sweep receiver or reception antenna then.
Step 2, eNB radio scanner or reception antenna on horizontal plane clockwise or be rotated counterclockwise the γ angle; Receive and the demodulation wireless signal in the subregion on new direction; Obtain the physical layer identifications of the sub-district in the subregion, and write down the positional information of this subregion;
Step 3, repeated execution of steps two are up to all subregions been scanned all;
According to clockwise or counterclockwise rotation sweep receiver or reception antenna, rotated 360 degree up to this radio scanner or reception antenna, can draw all been scanned of all subregions this moment.
Step 4, for cell selecting that eNB served with all different physical layer identifications in all sub-districts of detecting.
In order to realize above-mentioned method embodiment, other embodiment of the present invention also provide a kind of equipment of physical layer identifications of automatic allocating cell.What need at first explanation in addition is; Because following embodiment is for realizing aforesaid method embodiment; So this equipment all is to establish for each step that realizes preceding method, but the present invention is not limited to following embodiment, any said method equipment of realizing all should be contained in protection scope of the present invention.And in the following description, the content identical with preceding method omitted at this, to practice thrift length.
Referring to Fig. 3, be the equipment structure chart of the physical layer identifications of automatic allocating cell in the embodiments of the invention, by knowing that this equipment 30 comprises among the figure:
In the present embodiment, the position that this subregion can be set to the eNB place is the center of circle, is the sector region of central angle with the γ degree.The value of above-mentioned γ degree, just the number of degrees of this central angle are selected 10 degree, 15 degree, 20 degree, 30 degree, 45 degree etc. for use.Because this subregion is a sector region; So this eNB of the big I of these central angle number of degrees decision institute can obtain wireless signal in the peripheral region how much; When the number of degrees of this central angle are provided with when bigger, for example 90 degree, 120 degree are because the area that this sector region covers is bigger; This eNB can receive more wireless signal; But the wireless signal with respect to receiving whole space can reduce the influence of interference signal to echo signal to a certain extent, has improved the success rate to the wireless signal demodulation that receives the sub-district; And be provided with when smaller when this central angle, for example 10 degree, 20 degree etc., this moment, this eNB can receive less wireless signal, can significantly improve the success rate to the wireless signal demodulation that receives the sub-district because the area that this sector region covers is less.Referring to Fig. 2, be 8 sector regions with the area dividing around the eNB among the figure, wherein the central angle of each sector region is 45 degree.
When the eNB peripheral region was divided into a plurality of sector region, this sector region was that the position that belongs to eNB is the center of circle, is central angle with the γ degree, and this moment, this acquisition module 32 comprised:
1) receiving element is used for receiving the wireless signal in each sector region respectively according to clockwise or be rotated counterclockwise the mode of γ degree;
In the present embodiment, this receiving element can adopt existing radio scanner, and this radio scanner can be one group of smart antenna that spacing is less, and can realize that orientation, low-angle receive wireless signal.If the reception antenna of this equipment 30 self just possesses orientation, low-angle receives wireless signal, then needn't remilitarize extra radio scanner.
2) first acquiring unit is used for the wireless signal that arrives through demodulate reception, obtains the physical layer identifications of the sub-district in each sector region.
In another embodiment of the present invention, this acquisition module 32 also comprises:
1) second acquisition unit is used to obtain the positional information of the interior sub-district of each sector region with respect to eNB; This positional information just each sector region with respect to the positional information of eNB.
Just in the wireless signal that demodulate reception arrives, also can obtain the peripheral cell positional information of this eNB relatively, these information can be used for doing neighboring BS relationship optimization by eNB.。
In another embodiment of the present invention, this equipment 30 also comprises: memory module is used to store the physical layer identifications of the sub-district in all subregions of acquisition.
Can know by technique scheme; Through being a plurality of subregions with the area dividing around the evolution base station; Receive the wireless signal in each subregion then respectively, with respect to receiving in whole space, the quantity of the feasible wireless signal that receives reduces a lot; Just mean that also the interference to echo signal reduces; Thereby improved the success rate of the wireless signal of demodulation single subdistrict, made evolution base station can as far as possible fully detect sub-district on every side, and be the cell selecting and the peripheral cell physical layer identifications all inequality of this base station services.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. the method for the physical layer identifications of an automatic allocating cell is used for long evolving system, it is characterized in that, said method comprises:
Partiting step is a plurality of subregions with the area dividing around the evolution base station;
Obtaining step receives the wireless signal in each subregion respectively, through the said wireless signal that demodulate reception arrives, obtains the physical layer identifications of the sub-district in said each subregion;
Configuration step, obtain the physical layer identifications of the sub-district in all subregions after, be the physical layer identifications physical layer identifications inequality of the sub-district in one of the cell configuration of said evolution base station service and said all subregions.
2. method according to claim 1 is characterized in that, said subregion is: with said evolution base station is the center of circle, is the sector region of central angle with the γ degree;
Said partiting step is specially: it is 360/ γ that the area dividing around the said evolution base station is become quantity, and the position that belongs to said evolution base station is the center of circle, is the sector region of central angle with the γ degree, and wherein γ is 360 approximate number.
3. method according to claim 2 is characterized in that, said obtaining step comprises:
According to clockwise or be rotated counterclockwise the mode of γ degree, receive the wireless signal in each sector region respectively, through the said wireless signal that demodulate reception arrives, obtains the physical layer identifications of the interior sub-district of said each sector region.
4. method according to claim 3 is characterized in that, said obtaining step also comprises:
Obtain the positional information of the interior sub-district of said each sector region with respect to said evolution base station.
5. the equipment of the physical layer identifications of an automatic allocating cell is used for long evolving system, it is characterized in that, said equipment comprises:
Divide module, being used for the area dividing around the evolution base station is a plurality of subregions;
Acquisition module is used for receiving the wireless signal in each subregion respectively, through the said wireless signal that demodulate reception arrives, obtains the physical layer identifications of the sub-district in said each subregion; And
Configuration module is used for behind the physical layer identifications of the sub-district that obtains all subregions, is the physical layer identifications physical layer identifications inequality of the sub-district in one of the cell configuration of said evolution base station service and said all subregions.
6. equipment according to claim 5 is characterized in that, said equipment also comprises:
Memory module is used to store the physical layer identifications of the sub-district in said all subregions of acquisition.
7. equipment according to claim 5 is characterized in that, said subregion is: the position with said evolution base station place is the center of circle, is the sector region of central angle with the γ degree, and wherein γ is 360 approximate number;
Said acquisition module comprises:
Receiving element is used for receiving the wireless signal in each sector region respectively according to clockwise or be rotated counterclockwise the mode of γ degree;
First acquiring unit is used for the said wireless signal that arrives through demodulate reception, obtains the physical layer identifications of the sub-district in said each sector region.
8. equipment according to claim 7 is characterized in that, said acquisition module also comprises:
Second acquisition unit is used to obtain the positional information of the interior sub-district of said each sector region with respect to said evolution base station.
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| CN105873104B (en) * | 2016-04-19 | 2019-11-12 | 宇龙计算机通信科技(深圳)有限公司 | The small cell configuring method of the terminated of unlicensed spectrum, relevant device and system |
| CN110859006B (en) | 2018-08-24 | 2022-11-25 | 上海朗帛通信技术有限公司 | Method and device used in wireless communication node |
| CN112103618A (en) * | 2020-09-09 | 2020-12-18 | 上海诺行信息技术有限公司 | Outdoor antenna placing method and system |
| CN112333002B (en) * | 2020-10-10 | 2021-09-07 | 上海交通大学 | Decentralized state estimation method for power distribution network |
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Effective date of registration: 20210617 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |