CN105530692A - Downlink sending power control method and device - Google Patents
Downlink sending power control method and device Download PDFInfo
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- CN105530692A CN105530692A CN201410583976.6A CN201410583976A CN105530692A CN 105530692 A CN105530692 A CN 105530692A CN 201410583976 A CN201410583976 A CN 201410583976A CN 105530692 A CN105530692 A CN 105530692A
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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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
Abstract
The invention discloses a downlink sending power control method and device relating to the communication field. The method comprises following steps: obtaining adjacent cell information by a current service cell, adjusting the downlink sending power of the current service cell through combining with the current service cell information, and adjusting the downlink sending power through adjusting downlink sending power parameters. The device comprises an obtaining unit, a power adjusting unit and a configuring unit. According to the invention, the interferences among the cells are reduced through automatically adjusting the downlink sending power of the cells in the operation process of a base station.
Description
Technical field
The present invention relates to mobile communication technology field, particularly the method and apparatus of LTE (LongTermEvolution, Long Term Evolution) system descending transmission power control.
Background technology
Due to a large amount of use of smart mobile phone and the fast development of Internet technology, the mobile broadband data based on mobile cellular net rise appreciably, and therefore need to dispose increasing base station to meet the growth needs of data service.Traditional macro base station has not easily addressing, installs the feature difficult, running cost is expensive, and micro-station (smallcell) arises at the historic moment, and micro-station can solve these problems of macro station, and micro-station volume is little, easy for installation, maintenance cost is low.(smallcell) comprises Microcell, Picocell, Femtocell and PicoRRU etc. usually at micro-station.
Install simple feature because micro-station has, so micro-station may be arranged on the occasions such as family, enterprise, market, airport without the network planning.When these do not dispose many through micro-station of planning time, just there will be the interference between micro-station and macro station and between micro-station and micro-station, particularly for the community of application LTE technology, due to LTE technology, the interference between community is even more serious.
Summary of the invention
The object of the present invention is to provide the method and apparatus that a kind of downlink transmission power controls, in the running of base station, automatically can adjust the downlink transmission power of community, reduce the interference between community.
For solving following technical problem, the invention provides a kind of method that downlink transmission power regulates, described method comprises:
Acquisition adjacent area, current service cell cell information;
The downlink transmission power of described current service cell is adjusted according to described adjacent area cell information and described current service cell information;
The relevant parameter configuration of described current service cell is adjusted according to described downlink transmission power.
Further, acquisition adjacent area, described current service cell cell information comprises Reference Signal Received Power RSRP, neighboring cell load information.
Further, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds current service cell information on load sum higher than configured threshold, increase down transmitting power.
Further, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than threshold value A time, reduce down transmitting power.
Further, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant.
Further, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP is when being greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.
Further, described neighboring cell load information is one of following information: Physical Resource Block PRB utilance, power utilization, number of users.
Further, acquisition adjacent area, described current service cell cell information mode is at least one of following manner: network monitoring, X2 mouth and network management platform.
Further, described according to the configuration of downlink transmission power adjustment downstream parameter, specifically comprise: the relevant parameter being adjusted current service cell by the downlink transmission power after adjusting configures, comprise the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
For solving following technical problem, the invention provides a kind of device adjusting downlink transmission power, described device comprises: acquiring unit, power adjustment unit, dispensing unit; Wherein:
Described acquiring unit, for the information of acquisition adjacent area, current service cell;
Described power adjustment unit, for the neighboring BS information obtained based on neighboring BS information acquiring unit, in conjunction with the information of current service cell oneself, the downlink transmission power of adjustment current service cell;
Described dispensing unit, for based on the cell downlink transmitted power after adjustment, adjusts the relevant configuration of current service cell.
Further, the information of described acquiring unit acquisition adjacent area comprises Reference Signal Received Power RSRP, neighboring cell load information.
Further, the neighboring BS information that described power adjustment unit obtains based on neighboring BS information acquiring unit in conjunction with the information of current service cell oneself, the downlink transmission power of adjustment current service cell, comprises one of following situation:
When the strongest neighboring cell load adds current service cell information on load sum higher than configured threshold, increase down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than thresholding RSRP value A time, reduce down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant;
When the strongest neighboring cell load adds that current service cell load sum is lower than configured threshold, and when the highest adjacent area RSRP is greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.
Further, described neighboring cell load information comprises Physical Resource Block PRB utilance, power utilization, number of users.
Further, described dispensing unit, specifically for: the relevant parameter being adjusted current service cell by the downlink transmission power after adjusting configures, and comprises the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
Compared with prior art, use method and apparatus of the present invention, effectively can reduce the interference between community, automatically the downlink transmission power of community is adjusted in the running of base station, reduce micro-station and macro station and the interference between micro-station and micro-station in the interference, particularly LTE heterogeneous network system between community.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or existing technical scheme in the art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is downlink transmission power control method schematic diagram of the present invention;
Fig. 2 is the downlink transmission power control method flow chart of the embodiment of the present invention;
Fig. 3 is downlink transmission power control device figure of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.
Fig. 1 is the schematic diagram of a kind of downlink transmission power control method of the present invention.
First, current service cell acquisition adjacent area service cell information; Specifically comprise:
Acquisition adjacent area, described current service cell cell information, described adjacent area cell information comprises Reference Signal Received Power RSRP, neighboring cell load information.
Secondly, described Serving cell adjusts the downlink transmission power of described current service cell according to described adjacent area cell information and described current service cell information, and concrete adjustment downlink transmission power comprises:
When the strongest neighboring cell load information adds current service cell information on load sum higher than configured threshold, increase down transmitting power;
When the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than threshold value A time, reduce down transmitting power;
When the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant;
When the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and when the highest adjacent area RSRP is greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.Described neighboring cell load information is Physical Resource Block PRB utilance, power utilization, number of users.
Finally regulate current service cell relevant parameter configuration according to the downlink transmission power after adjustment, comprise the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
Several different embodiment will be listed below, to further illustrate technical scheme of the present invention.
Embodiment one: neighboring cell load information is for Physical Resource Block PRB utilance
As shown in Figure 2, a kind of downlink transmission power control method of the present invention, described method comprises:
S201: obtain adjacent area RSRP by network monitoring, obtain neighboring cell load information PRB utilance by X2 mouth.
S202: judge that the strongest adjacent area PRB utilance adds that whether the PRB utilance sum of current service cell is higher than PRB utilance thresholding, if so, forwards step 205 to, otherwise, forward step 203 to.It is the highest that the strongest adjacent area refers to its RSRP in all adjacent areas of Serving cell.PRB utilance thresholding is algorithm configuration value, such as 90%.
S203: judge that whether the strongest adjacent area RSRP is higher than RSRP thresholding A, if so, forwards S207 to, otherwise, forward S204 to.RSRP thresholding A is algorithm configuration value, such as-60dBm, and the RSRP of the strongest adjacent area shows to there is stronger interference adjacent area higher than RSRP thresholding A.
S204: judge that whether Qiang Lin district RSRP is lower than RSRP thresholding B, if so, forwards S205 to, otherwise, forward S206 to.RSRP thresholding 2 is algorithm configuration value, such as-100dBm, and lower than RSRP thresholding B, the strongest adjacent area RSRP shows that adjacent area interference is not serious, wherein threshold value A is greater than B.
S205: increase cell transmit power, cell transmit power raises one and raises step-length, and raising step-length is algorithm configuration value, such as 1dB.
S206: cell power transmitting remains unchanged.
S207: reduce cell transmit power, cell transmit power is lowered one and is lowered step-length, and lowering step-length is algorithm configuration value, such as 2dB.
S208: the parameter configuration that the pilot frequency configuration that relevant parameter configuration packet uses power containing community, community uses of adjustment current service cell, RRC are correlated with, such as pilot power can be calculated by cell power.
Embodiment two: neighboring cell load information is for cell power utilance
A kind of downlink transmission power control method of the present invention, described method comprises:
S301: obtain adjacent area RSRP by network monitoring, obtained neighboring cell load Info Down cell power utilance by X2 mouth.
S302: judge that the strongest adjacent area descending cell power utilance adds that whether the descending cell power utilance sum of current service cell is higher than descending cell power utilance thresholding, if so, forwards step 305 to, otherwise, forward step 303 to.It is the highest that the strongest adjacent area refers to its RSRP in all adjacent areas of Serving cell.Descending cell power utilance thresholding is algorithm configuration value, such as 90%.
S303: judge that whether the strongest adjacent area RSRP is higher than RSRP thresholding A, if so, forwards S307 to, otherwise, forward S304 to.RSRP thresholding A is algorithm configuration value, such as-60dBm, and the RSRP of the strongest adjacent area shows to there is stronger interference adjacent area higher than RSRP thresholding 1.
S304: judge that whether the strongest adjacent area RSRP is lower than RSRP thresholding B, if so, forwards S305 to, otherwise, forward S306 to.RSRP thresholding B is algorithm configuration value, such as-100dBm, lower than RSRP thresholding 2, the strongest adjacent area RSRP shows that adjacent area interference is not serious.
S305: increase cell transmit power, cell transmit power raises one and raises step-length, and raising step-length is algorithm configuration value, such as 1dB.
S306: cell power transmitting remains unchanged.
S307: reduce cell transmit power, cell transmit power is lowered one and is lowered step-length, and lowering step-length is algorithm configuration value, such as 2dB.
S308: the parameter configuration that the pilot frequency configuration that relevant parameter configuration packet uses power containing community, community uses of adjustment current service cell, RRC are correlated with, such as pilot power can be calculated by cell power.
Embodiment three: neighboring cell load information is for number of users:
A kind of downlink transmission power control method of the present invention, described method comprises:
S401: obtain adjacent area RSRP by network monitoring, obtain neighboring cell load information user number by X2 mouth.
S402: judge that the strongest adjacent area number of users adds that whether the number of users sum of current service cell is higher than number of users thresholding, if so, forwards step 405 to, otherwise, forward step 403 to.It is the highest that the strongest adjacent area refers to its RSRP in all adjacent areas of Serving cell.Number of users thresholding is algorithm configuration value, such as 96 users.
S403: judge that whether the strongest adjacent area RSRP is higher than RSRP thresholding A, if so, forwards S407 to, otherwise, forward S404 to.RSRP thresholding A is algorithm configuration value, such as-60dBm, and the RSRP of the strongest adjacent area shows to there is stronger interference adjacent area higher than RSRP thresholding 1.
S404: judge that whether the strongest adjacent area RSRP is lower than RSRP thresholding B, if so, forwards S405 to, otherwise, forward S406 to.RSRP thresholding B is algorithm configuration value, such as-100dBm, lower than RSRP thresholding B, the strongest adjacent area RSRP shows that adjacent area interference is not serious.
S405: increase cell transmit power, cell transmit power raises one and raises step-length, and raising step-length is algorithm configuration value, such as 1dB.
S406: cell power transmitting remains unchanged.
S407: reduce cell transmit power, cell transmit power is lowered one and is lowered step-length, and lowering step-length is algorithm configuration value, such as 2dB.
S408: the parameter configuration that the pilot frequency configuration that relevant parameter configuration packet uses power containing community, community uses of adjustment current service cell, RRC are correlated with, such as pilot power can be calculated by cell power.
As shown in Figure 3, the invention provides a kind of device adjusting downlink transmission power, described device comprises: acquiring unit, power adjustment unit, dispensing unit; Wherein:
Described acquiring unit, for the information of acquisition adjacent area, current service cell, wherein, the information obtaining adjacent area comprises Reference Signal Received Power RSRP, neighboring cell load information; Described neighboring cell load information comprises Physical Resource Block PRB utilance, power utilization, number of users.
Described power adjustment unit, for the neighboring BS information obtained based on neighboring BS information acquiring unit, in conjunction with the information of current service cell oneself, the downlink transmission power of adjustment current service cell, comprises one of following situation:
When the strongest neighboring cell load adds current service cell information on load sum higher than configured threshold, increase down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than thresholding RSRP value A time, reduce down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant;
When the strongest neighboring cell load adds that current service cell load sum is lower than configured threshold, and when the highest adjacent area RSRP is greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.
Described dispensing unit, for based on the cell downlink transmitted power after adjustment, adjusts the relevant configuration of current service cell.Specifically for: the relevant parameter being adjusted current service cell by the downlink transmission power after adjusting configures, and comprises the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
Above-mentioned explanation illustrate and describes three preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (14)
1. a method for downlink transmission power control, described method comprises:
Acquisition adjacent area, current service cell cell information;
The downlink transmission power of described current service cell is adjusted according to described adjacent area cell information and described current service cell information;
The relevant parameter configuration of described current service cell is adjusted according to described downlink transmission power.
2. the method for claim 1, is characterized in that, acquisition adjacent area, described current service cell cell information comprises Reference Signal Received Power RSRP, neighboring cell load information.
3. method as claimed in claim 2, it is characterized in that, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds current service cell information on load sum higher than configured threshold, increase down transmitting power.
4. method as claimed in claim 2, it is characterized in that, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than threshold value A time, reduce down transmitting power.
5. the method shown in claim 2, it is characterized in that, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant.
6. the method as shown in claim 2, it is characterized in that, the described downlink transmission power adjusting described current service cell according to described adjacent area cell information and described current service cell information, specifically comprise: when the strongest neighboring cell load information adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP is when being greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.
7. the method as described in any one of claim 3 to 6, is characterized in that, described neighboring cell load information is one of following information: Physical Resource Block PRB utilance, power utilization, number of users.
8. the method for claim 1, is characterized in that, acquisition adjacent area, described current service cell cell information mode is at least one of following manner: network monitoring, X2 mouth and network management platform.
9. the method as described in any one of claim 3 to 6, it is characterized in that, described according to the configuration of downlink transmission power adjustment downstream parameter, specifically comprise: the relevant parameter being adjusted current service cell by the downlink transmission power after adjusting configures, comprise the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
10. adjust a device for downlink transmission power, it is characterized in that, described device comprises: acquiring unit, power adjustment unit, dispensing unit; Wherein:
Described acquiring unit, for the information of acquisition adjacent area, current service cell;
Described power adjustment unit, for the neighboring BS information obtained based on neighboring BS information acquiring unit, in conjunction with the information of current service cell oneself, the downlink transmission power of adjustment current service cell;
Described dispensing unit, for based on the cell downlink transmitted power after adjustment, adjusts the relevant configuration of current service cell.
11. devices as claimed in claim 10, is characterized in that, the information that described acquiring unit obtains adjacent area comprises Reference Signal Received Power RSRP, neighboring cell load information.
12. devices as claimed in claim 11, it is characterized in that, the neighboring BS information that described power adjustment unit obtains based on neighboring BS information acquiring unit in conjunction with the information of current service cell oneself, the downlink transmission power of adjustment current service cell, comprises one of following situation:
When the strongest neighboring cell load adds current service cell information on load sum higher than configured threshold, increase down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP higher than thresholding RSRP value A time, reduce down transmitting power;
When the strongest neighboring cell load adds that current service cell information on load sum is lower than configured threshold, and the highest adjacent area RSRP lower than thresholding RSRP value A and the highest adjacent area RSRP lower than thresholding RSRP value B time, increase down transmitting power constant;
When the strongest neighboring cell load adds that current service cell load sum is lower than configured threshold, and when the highest adjacent area RSRP is greater than thresholding RSRP value B lower than thresholding RSRP value A and the highest adjacent area RSRP, keep downlink transmission power constant.
13. devices as claimed in claim 12, it is characterized in that, described neighboring cell load information comprises Physical Resource Block PRB utilance, power utilization, number of users.
14. devices as claimed in claim 13, it is characterized in that, described dispensing unit, specifically for: the relevant parameter being adjusted current service cell by the downlink transmission power after adjusting configures, and comprises the pilot frequency configuration that community uses power, community uses, the parameter configuration that RRC is relevant.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583976.6A CN105530692A (en) | 2014-10-27 | 2014-10-27 | Downlink sending power control method and device |
| PCT/CN2015/089200 WO2016065990A1 (en) | 2014-10-27 | 2015-09-08 | Downlink transmit power control method and device, and computer storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410583976.6A CN105530692A (en) | 2014-10-27 | 2014-10-27 | Downlink sending power control method and device |
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| CN105530692A true CN105530692A (en) | 2016-04-27 |
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| CN201410583976.6A Pending CN105530692A (en) | 2014-10-27 | 2014-10-27 | Downlink sending power control method and device |
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| WO (1) | WO2016065990A1 (en) |
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| WO2016065990A1 (en) | 2016-05-06 |
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Application publication date: 20160427 |