CN103249131A - Method and device for self calibration of downlink transmitting power of base station - Google Patents
Method and device for self calibration of downlink transmitting power of base station Download PDFInfo
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- CN103249131A CN103249131A CN201310152746XA CN201310152746A CN103249131A CN 103249131 A CN103249131 A CN 103249131A CN 201310152746X A CN201310152746X A CN 201310152746XA CN 201310152746 A CN201310152746 A CN 201310152746A CN 103249131 A CN103249131 A CN 103249131A
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Abstract
The embodiment of the invention provides a method and device for the self calibration of downlink transmitting power of a base station, and aims to solve the problem that in the prior art, whether the downlink transmitting power of the base station is in need of adjustment or not cannot be determined accurately. The method comprises the following steps: judging whether the ratio of downlink measurement reports meeting the condition in downlink measurement reports reported by user equipment within the coverage of base station signals received in a specific period to the total downlink measurement reports is not less than a first threshold value or not, and judging whether the number of accessing requests received by the base station in the specific period is not larger than a second threshold value or not; keeping the downlink transmitting power of the base station constant if the ratio of downlink measurement reports to the total downlink measurement reports is not less than the first threshold value and the number of the accessing requests received by the base station is not larger than the second threshold value; and otherwise, adjusting the downlink transmitting power of the base station.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the self-alignment method and apparatus of a kind of base station down transmitting power.
Background technology
Home eNodeB can cover macro base station the area that can not cover, thereby a large number of services in the shunting macro base station is saved cost.
But Home eNodeB generally is private the deployment, does not pass through the network planning, and the user can random installation.Therefore carry out can having a potential problem when scale is disposed at Home eNodeB, namely to the interference of the subscriber equipment of macro base station become more at random and be difficult to control.Therefore, generally require Home eNodeB to have self-organizing network (SON) function.The SON function comprises functions such as frequency configuration, power configuration and neighbor cell configuration, and wherein frequency configuration and power configuration have very large influence to the interference between system.
The method that a kind of more common solution is disturbed is to be the adjacent different frequency of base station configuration.But when the family base station scale of carrying out is disposed, because frequency resource is limited, very difficult assurance is all Home eNodeB or is the Home eNodeB frequency different with the macro base station configuration, therefore, serious co-channel interference may occur between the Home eNodeB or between Home eNodeB and the macro base station.
The method that another kind of more common control is disturbed is to carry out power control.The SON functional requirement base station of Home eNodeB can adaptive configuration Initial Trans and adaptive calibration power.Wherein, the power self-configuring be exactly when Home eNodeB just powers on the disturbed condition according to surrounding environment come the Initial Trans of configurating base station adaptively, after power self-calibration referred to that the base station is finished the self-configuring process and entered normal operating conditions, the transmitting power of adjusting the base station adaptively made it reduce interference to surrounding environment when satisfying coverage as far as possible.
In the prior art, the method for power self-calibration generally is in a measurement period, adjusts down transmitting power by the measurement report of collecting mobile terminal reporting, wherein, comprises descending incoming level and the descending quality of reception in the measurement report.But, the mobile subscriber is randomly dispersed in the coverage of Home eNodeB, when the user distance Home eNodeB is very near in some cycles, incoming level and the quality of reception are fine in the measurement report that counts on, and if the transmitting power that to reduce a problem that the transmitting power of base station brings this moment be the base station can not satisfy the communication quality that covers edge customer.That is to say the measurement report of only gathering mobile terminal reporting of the prior art is weighed the down transmitting power of base station, and whether suitable method is not too accurately.Therefore, the method for existing power self-calibration has also just caused this method can not adjust the down transmitting power of base station exactly owing to whether the down transmitting power that can not weigh the base station exactly is suitable.
In sum, the method for existing power self-calibration can not determine exactly whether the down transmitting power of base station is suitable, and namely prior art can not determine exactly whether the down transmitting power of base station needs to adjust.
Summary of the invention
The embodiment of the invention provides a kind of base station down transmitting power self-alignment method and apparatus, can not determine exactly in order to solve prior art whether the down transmitting power of base station needs the problem of adjusting.
Based on the problems referred to above, the self-alignment method of a kind of base station down transmitting power that the embodiment of the invention provides comprises:
Judge that the base station signal that receives in a period of time covers the ratio that the down-run survey report that satisfies condition in the down-run survey report of user equipment to report down accounts for total down-run survey report and whether is not less than first threshold, and whether the quantity of the access request that receives of interior described base station of described time period is not more than second threshold value; Wherein, the report of the down-run survey that satisfies condition refers to that the descending incoming level that comprises is higher than first threshold value and the descending quality of reception that comprises is higher than the down-run survey report of second threshold value;
If the described down-run survey report that satisfies condition accounts for the quantity that the ratio of total down-run survey report is not less than the access request that first threshold and described base station receive and is not more than second threshold value, then keep the down transmitting power of described base station constant; Otherwise, adjust the down transmitting power of described base station.
The self-alignment device of a kind of base station down transmitting power that the embodiment of the invention provides comprises:
Judge module, be used for judging that the base station signal that receives in a period of time covers down-run survey report that the down-run survey report of user equipment to report down satisfies condition and accounts for the ratio that total down-run survey reports and whether be not less than first threshold, and whether the quantity of the access request that receives of interior described base station of described time period is not more than second threshold value; Wherein, the report of the down-run survey that satisfies condition refers to that the descending incoming level that comprises is higher than first threshold value and the descending quality of reception that comprises is higher than the down-run survey report of second threshold value; And be used for when the quantity that the ratio that the described down-run survey report that satisfies condition accounts for total down-run survey report is not less than the access request that first threshold and described base station receive is not more than second threshold value, not sending the indication of the down transmitting power of adjusting described base station to adjusting module; Otherwise, send the indication of the down transmitting power of adjusting described base station to described adjusting module;
Adjusting module is used for adjusting the down transmitting power of described base station after the indication of the down transmitting power that receives the described base station of adjustment that described judge module sends.
The beneficial effect of the embodiment of the invention comprises:
The self-alignment method and apparatus of the base station down transmitting power that the embodiment of the invention provides covers the down-run survey report of user equipment to report down and the quantity of the access request that subscriber equipment that should this base station receives in the time period sends determines jointly whether the transmitting power of this base station needs adjustment by the base station signal that receives in a period of time; The ratio that the down-run survey that the satisfies condition report of the user equipment to report under the base station signal that only receives in this time period covers accounts for total down-run survey report is not less than first threshold, and the quantity of the access request that this base station receives in should the time period is not more than second threshold value, that is to say, the base station can either provide normal service for the subscriber equipment under the base station signal covering, in the time of can not causing bigger interference to the subscriber equipment of non-this base station on every side again, confirm that the down transmitting power of base station does not need to adjust; Otherwise, confirm that the down transmitting power of base station needs to adjust, thereby whether the down transmitting power of accurately judging the base station needs to adjust.
Description of drawings
One of flow chart of the self-alignment method of base station down transmitting power that Fig. 1 provides for the embodiment of the invention;
Two of the flow chart of the self-alignment method of base station down transmitting power that Fig. 2 provides for the embodiment of the invention;
The flow chart of the method that the down transmitting power with this base station that Fig. 3 provides for the embodiment of the invention reduces;
The flow chart of the method that the down transmitting power with this base station that Fig. 4 provides for the embodiment of the invention raises;
The self-alignment method of the base station down transmitting power flow chart in actual applications that Fig. 5 provides for the embodiment of the invention;
The structure chart of the self-alignment device of base station down transmitting power that Fig. 6 provides for the embodiment of the invention.
Embodiment
The self-alignment method and apparatus of a kind of base station down transmitting power that the embodiment of the invention provides, cover the down-run survey report of user equipment to report down and the quantity of the access request that subscriber equipment that should this base station receives in the time period sends determines jointly whether the transmitting power of this base station needs adjustment by the base station signal that receives in a period of time, thereby the method that has overcome existing power self-calibration can not determine exactly whether the down transmitting power of base station needs the problem of adjusting.
Below in conjunction with Figure of description, the embodiment of the self-alignment method and apparatus of a kind of base station down transmitting power that the embodiment of the invention is provided describes.
The self-alignment method of a kind of base station down transmitting power that the embodiment of the invention provides as shown in Figure 1, specifically may further comprise the steps:
S101, judge whether the quantity of the access request that the base station receives in a period of time subscriber equipment sends is not more than second threshold value, and whether the ratio that the down-run survey report that satisfies condition in the down-run survey report of the user equipment to report under this base station signal covers in this section period accounts for total down-run survey report is not less than first threshold, if, carry out S102, otherwise, carry out S103; Wherein, comprise this base station signal in the down-run survey report and cover the descending quality of reception that the descending incoming level of this base station that subscriber equipment down measures and this base station signal cover this base station that subscriber equipment down measures, the down-run survey that satisfies condition report refers to that this descending incoming level is higher than the down-run survey that first threshold value and this descending quality of reception be higher than second threshold value and reports;
The transmitting power of S102, maintenance base station is constant;
The transmitting power of S103, adjustment base station.
Subscriber equipment under base station signal covers periodically reports the down-run survey report to this base station between service period, when subscriber equipment is in busy state, when for example making a phone call, subscriber equipment reports the one-shot measurement report every 480ms, wherein, comprise descending incoming level and the descending quality of reception in the down-run survey report that reports.
Described base station is after the access request that receives the subscriber equipment transmission, if this base station only provides service for authorized user device, so, this base station can judge that transmission inserts whether requesting users equipment is authorized user, if, this base station allows to send access requesting users equipment and inserts this base station, otherwise this base station does not allow to send access requesting users equipment and inserts this base station.After transmission access requesting users equipment was inserted by this base station refusal, this subscriber equipment can not send access to this base station repeatedly and ask.
Wherein, adjust the transmitting power of this base station, as shown in Figure 2, specifically comprise:
S103a, judge whether the quantity of the access request that the base station receives in this section period subscriber equipment sends is not more than second threshold value, and whether the down-run survey report that satisfies condition in the down-run survey report of the user equipment to report under this base station signal covers in this section period accounts for the ratio of total down-run survey report less than first threshold, if, carry out S103b, otherwise, carry out S103c;
S103b, the down transmitting power of this base station is raise;
S103c, the down transmitting power of this base station is reduced.
Wherein, the condition of carrying out S103c is that the quantity of the access request that sends of the base station receives in this section period subscriber equipment is greater than second threshold value.
Further, the down transmitting power reduction with this base station as shown in Figure 3, comprising:
S301, after this finishes time period, determine the target transmit power of this base station, wherein, target transmit power is that the transmitting power of this base station in this time period reduced transmitting power after the downward power steps; Be P
Goal1=P
Original1-Δ
Decrease, wherein, P
Goal1Be target transmit power, P
Origina1lBe the transmitting power of base station in this time period, Δ
DecreaseBe downward power steps;
Bigger transmitting power is as the new transmitting power of this base station, i.e. P in S302, the minimum emissive power that target transmit power and this base station are allowed
New1=max (P
Goal1, P
Min), wherein, P
New1Be the new transmitting power in this base station, P
MinThe minimum emissive power that allows for this base station;
S303, the down transmitting power of this base station is adjusted into the new transmitting power P of this base station
New1
Further, the down transmitting power rising with this base station as shown in Figure 4, comprising:
S401, after this finishes time period, determine the target transmit power of this base station, wherein, target transmit power is that the transmitting power rising power of this base station in this time period is increased transmitting power after the step-length; Be P
Goal2=P
Original2+ Δ
Increase, wherein, P
Goal2Be target transmit power, P
Origina12Be the transmitting power of base station in this time period, Δ
IncreaseFor power increases step-length;
Transmitting power less in S402, the maximum transmission power that target transmit power and this base station are allowed is as the new transmitting power in this base station, i.e. P
New2=min (P
Goal2, P
Max), wherein, P
New2Be the new transmitting power of this base station, P
MaxThe maximum transmission power that allows for this base station;
S403, the down transmitting power of this base station is adjusted into the new transmitting power P of this base station
New2
In order to understand the self-alignment method of a kind of base station down transmitting power that the embodiment of the invention provides better, judge that with the base station down transmitting power whether down transmitting power of self needs to adjust and adjust self is that example further specifies the self-alignment method of a kind of base station down transmitting power workflow in actual applications that the embodiment of the invention provides below.
The self-alignment method of a kind of base station down transmitting power workflow in actual applications that the embodiment of the invention provides comprises as shown in Figure 5:
S501, base station arrange timing duration T, and the opening timing device;
S502, base station receive the down-run survey report of the user equipment to report under this base station signal covering, and receive the access request that subscriber equipment sends, and finish until the timer timing;
Whether S503, base station judge the quantity of the access request that receives greater than second threshold value, if, carry out S504, otherwise, S505 carried out;
S504, base station are adjusted into bigger transmitting power in the minimum emissive power that target transmit power and this base station allow with self transmitting power, wherein, target transmit power is that the transmitting power of this base station in the timing duration T of timer reduced downward power steps transmitting power afterwards; Then, carry out S501;
Whether the ratio that the measurement report that satisfies condition in the measurement report that S505, base station judgement receive accounts for total down-run survey report is not less than first threshold, if, carry out S506, otherwise, S507 carried out; Wherein, the report of the down-run survey that satisfies condition refers to that descending incoming level that this base station signal covers this base station that subscriber equipment down measures is higher than the down-run survey that the descending quality of reception that first threshold value and this base station signal cover this base station of subscriber equipment measurement down is higher than second threshold value and reports;
S506, base station keep the transmitting power of self constant; Then, carry out S501;
S507, base station are adjusted into less transmitting power in the maximum transmission power that target transmit power and this base station allow with self transmitting power, wherein, target transmit power is that the transmitting power rising power of this base station in this time period is increased step-length transmitting power afterwards; Then, carry out S501.
Based on same inventive concept, the embodiment of the invention also provides a kind of base station down transmitting power self-alignment device, because the principle that this device is dealt with problems is similar to the self-alignment method of aforementioned base station down transmitting power, therefore the enforcement of this device can repeat part and repeat no more referring to the enforcement of preceding method.
The self-alignment device of a kind of base station down transmitting power that the embodiment of the invention provides as shown in Figure 6, comprising:
Adjusting module 62 is used for adjusting the down transmitting power of this base station after the indication of the down transmitting power that receives this base station of adjustment that judge module 61 sends.
Further, judge module 61, concrete when being used for quantity in the access request of determining to receive in this time period greater than second threshold value, send the indication that the down transmitting power with this base station reduces to adjusting module 62; Adjusting module 62, concrete being used for after the indication that the down transmitting power with this base station that receives judge module 61 transmissions reduces is with the down transmitting power reduction of this base station.
Further, adjusting module 62, the concrete down transmitting power that is used for after this time period finishes this base station is adjusted into the bigger transmitting power of minimum emissive power that target transmit power and this base station allow, wherein, target transmit power is that the transmitting power of this base station in this time period reduced downward power steps transmitting power afterwards.
Further, judge module 61, concrete being used for is not more than second threshold value in the quantity of the access request of determining to receive in this time period, and the ratio that the down-run survey that satisfies condition report accounts for total down-run survey report is during less than first threshold, sends the indication that the down transmitting power with this base station raises to adjusting module 62; Adjusting module 62, concrete being used for after the indication that the down transmitting power with this base station that receives judge module 61 transmissions raises is with the down transmitting power rising of this base station.
Further, adjusting module 62, the concrete down transmitting power that is used for after this time period finishes this base station is adjusted into the less transmitting power of maximum transmission power that target transmit power and this base station allow, wherein, target transmit power is that the transmitting power rising power of this base station in this time period is increased step-length transmitting power afterwards.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, the technical scheme of the embodiment of the invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the self-alignment method of base station down transmitting power is characterized in that, comprising:
Judge that the base station signal that receives in a period of time covers the ratio that the down-run survey report that satisfies condition in the down-run survey report of user equipment to report down accounts for total down-run survey report and whether is not less than first threshold, and whether the quantity of the access request that receives of interior described base station of described time period is not more than second threshold value; Wherein, the report of the down-run survey that satisfies condition refers to that the descending incoming level that comprises is higher than first threshold value and the descending quality of reception that comprises is higher than the down-run survey report of second threshold value;
If the described down-run survey report that satisfies condition accounts for the quantity that the ratio of total down-run survey report is not less than the access request that first threshold and described base station receive and is not more than second threshold value, then keep the down transmitting power of described base station constant; Otherwise, adjust the down transmitting power of described base station.
2. the method for claim 1 is characterized in that, adjusts the down transmitting power of described base station, specifically comprises:
If the quantity of the access request that receives in the described time period is greater than second threshold value, then the down transmitting power with described base station reduces.
3. method as claimed in claim 2 is characterized in that, the down transmitting power reduction with described base station specifically comprises:
After described time period finishes, the down transmitting power of described base station is adjusted into bigger transmitting power in the minimum emissive power that target transmit power and described base station allow, wherein, target transmit power is that the transmitting power of described base station in the described time period reduced downward power steps transmitting power afterwards.
4. the method for claim 1 is characterized in that, adjusts the down transmitting power of described base station, specifically comprises:
If the quantity of the access request that receives in the described time period is not more than second threshold value, and the ratio that the described down-run survey report that satisfies condition accounts for total down-run survey report is less than first threshold, and then the down transmitting power with described base station raises.
5. method as claimed in claim 4 is characterized in that, the down transmitting power rising with described base station specifically comprises:
After described time period finishes, the down transmitting power of described base station is adjusted into less transmitting power in the maximum transmission power that target transmit power and described base station allow, wherein, target transmit power is that the transmitting power rising power of described base station in the described time period is increased step-length transmitting power afterwards.
6. the self-alignment device of base station down transmitting power is characterized in that, comprising:
Judge module, be used for judging that the base station signal that receives in a period of time covers down-run survey report that the down-run survey report of user equipment to report down satisfies condition and accounts for the ratio that total down-run survey reports and whether be not less than first threshold, and whether the quantity of the access request that receives of interior described base station of described time period is not more than second threshold value; Wherein, the report of the down-run survey that satisfies condition refers to that the descending incoming level that comprises is higher than first threshold value and the descending quality of reception that comprises is higher than the down-run survey report of second threshold value; And be used for when the quantity that the ratio that the described down-run survey report that satisfies condition accounts for total down-run survey report is not less than the access request that first threshold and described base station receive is not more than second threshold value, not sending the indication of the down transmitting power of adjusting described base station to adjusting module; Otherwise, send the indication of the down transmitting power of adjusting described base station to described adjusting module;
Adjusting module is used for adjusting the down transmitting power of described base station after the indication of the down transmitting power that receives the described base station of adjustment that described judge module sends.
7. device as claimed in claim 6 is characterized in that, described judge module specifically is used for:
If the quantity of the access request that receives in the described time period is greater than second threshold value, then to the indication of described adjusting module transmission with the down transmitting power reduction of described base station;
Described adjusting module, concrete being used for after the indication that the down transmitting power with described base station that receives described judge module transmission reduces is with the down transmitting power reduction of described base station.
8. device as claimed in claim 7 is characterized in that, described adjusting module specifically is used for:
After described time period finishes, the down transmitting power of described base station is adjusted into bigger transmitting power in the minimum emissive power that target transmit power and described base station allow, wherein, target transmit power is that the transmitting power of described base station in the described time period reduced downward power steps transmitting power afterwards.
9. device as claimed in claim 6 is characterized in that, described judge module specifically is used for:
If the quantity of the access request that receives in the described time period is not more than second threshold value, and the ratio that the described down-run survey report that satisfies condition accounts for total down-run survey report is during less than first threshold, then sends the indication that the down transmitting power with described base station raises to described adjusting module;
Described adjusting module, concrete being used for after the indication that the down transmitting power with described base station that receives described judge module transmission raises is with the down transmitting power rising of described base station.
10. device as claimed in claim 9 is characterized in that, described adjusting module specifically is used for:
After described time period finishes, the down transmitting power of described base station is adjusted into less transmitting power in the maximum transmission power that target transmit power and described base station allow, wherein, target transmit power is that the transmitting power rising power of described base station in the described time period is increased step-length transmitting power afterwards.
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| CN110012485A (en) * | 2019-04-10 | 2019-07-12 | 惠州Tcl移动通信有限公司 | A kind of base station classification control method, system, storage medium and mobile terminal |
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