CN105636056A - Spectrum resource self-optimization energy-saving method, apparatus and system - Google Patents
Spectrum resource self-optimization energy-saving method, apparatus and system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention discloses a spectrum resource self-optimization energy-saving method, apparatus and system. The spectrum resource self-optimization energy-saving method comprises the steps of: establishing a resource state model of each cell according to historical KPI data of each cell, and predicting a resource usage trend and a resource idle period of each cell according to the resource state model of each cell; for the cell meeting a resource optimization condition, determining a suitable bandwidth of the cell according to the corresponding resource usage trend, and re-distributing frequency range to the cell according to the width of the bandwidth, wherein the resource optimization condition comprises being within the predicted resource idle period. Through adoption of the spectrum resource self-optimization energy-saving method, the resource idle period and the resource usage trend of a cell can be discriminated, and resource optimization can be performed by use of the resource idle period and the resource usage trend, thereby improving utilization rate of spectrum resource, and achieving the effects of reducing interference and saving energy.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the power-economizing method of a kind of frequency spectrum resource self-optimizing, device and system.
Background technology
Gartner consultation report shows, the accounting that directly affects of Global Emissions of Greenhouse Gas is 2��2.5% by ICT (InformationCommunicationTechnology) industry, wherein the impact of communication industry accounts for 1/4, year power consumption already more than 20,000,000,000 kilowatt hours; According to measuring and calculating, the energy resource consumption of base station equipment accounts for the 90% of whole mobile communication network device energy consumption, account for the 60%��70% of common carrier entirety O&M total power consumption, base station energy-saving becomes the key that whole mobile communications network is energy-conservation, and how to reduce base station energy consumption and also become environmental protection and the cost topic that common carrier is paid close attention to.
The scheme that base station energy-saving is proposed by current industry has: the schemes such as community shutoff, symbol shutoff, has self not enough. KPI (KeyPerformanceIndicator from India's airtel commercial network, Key Performance Indicator) data are seen, the resource service condition (number of users, RB utilization rate, handling capacity) of each community has periodically, keeps again the diversity with other community simultaneously. Community turns off, it is easy to cause coverage hole, the Consumer's Experience of impact burst; Symbol turns off effective, but energy-conservation also not thorough. 3GPP protocol definition LTE system six kinds of bandwidth 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, different bandwidth, identical reference signal (ReferenceSignal, it is called for short RS) power, there is identical coverage effect, but there is notable difference in power consumption, by adjusting the way of bandwidth, it is possible to make up the deficiency that symbol turns off. CN200810218058 patent describes inside of base station and carries out dynamic debugging system bandwidth based on number of users and MAC resource utilization, but the method adjusts the time and belongs to second level, granularity is too little, sudden, the tide of base station data business, the phenomenon of Bandwidth adjustment can be caused repeatedly, ultimately result in Consumer's Experience weak effect.
Summary of the invention
The present invention provides the power-economizing method of a kind of frequency spectrum resource self-optimizing, device and system, the problem that, cell power resource inaccurate in order to the community free time condition adjudgement solving to exist in prior art exists waste.
According to one aspect of the present invention, it is provided that the power-economizing method of a kind of frequency spectrum resource self-optimizing, including:
Based on the history keyword performance indications KPI data of each community, set up the resource status model of each community the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
For the community meeting resource optimization condition, use tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistribute frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
According to another aspect of the present invention, it is provided that a kind of network management server, including:
MBM, for the history KPI data based on each community, sets up the resource status model of each community;
Prediction module, for the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
Output module, for using tendency and the output of resource idle period information to respective base station, so that base station uses tendency and resource idle period to carry out resource optimization according to the resource of community by the resource of each community of prediction.
According to the third aspect of the invention, it is provided that a kind of base station, including:
Information receiving module, uses tendency and resource idle period information for obtaining network management server according to the resource of each community of the resource status model prediction of each community;
Resource optimization module, for for the community meeting resource optimization condition, using tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistributes frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
According to the fourth aspect of the invention, it is provided that the energy conserving system of a kind of frequency spectrum resource self-optimizing, including network management server provided by the invention and base station.
The present invention has the beneficial effect that:
Adopt the method for the invention, compared with prior art, community free time section and resource service condition tendency can be differentiated, and utilize free time section and resource service condition tendency, carry out resource optimization, improve frequency spectrum resource utilization rate, reached to lower interference and energy-saving effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the power-economizing method of the frequency spectrum resource self-optimizing that Fig. 1 provides for the embodiment of the present invention one;
Fig. 2 is the system architecture diagram of method application described in the embodiment of the present invention;
Fig. 3 is the performance statistics table of handling capacity service condition in the community a couple of days provided in the embodiment of the present invention;
Fig. 4 is the community provided in embodiment of the present invention performance statistics table of handling capacity service condition in 2 two days;
The flow chart of the power-economizing method of the frequency spectrum resource self-optimizing that Fig. 5 provides for the embodiment of the present invention two;
Fig. 6 is that in method flow described in Fig. 5, each step performs opportunity with reference to figure;
Fig. 7 is base station networking figure in the embodiment of the present invention;
Fig. 8 is bandwidth partition figure in the embodiment of the present invention;
Fig. 9 is embodiment of the present invention Mid Frequency distribution diagram;
Figure 10 is another frequency allocation figure in the embodiment of the present invention;
Figure 11 is the structured flowchart of network management server in the embodiment of the present invention;
Figure 12 is the structured flowchart of base station in the embodiment of the present invention.
Detailed description of the invention
In order to overcome the problem that the community free time condition adjudgement existed in prior art is inaccurate, cell power resource exists waste, the present invention provides the power-economizing method of a kind of frequency spectrum resource self-optimizing, device and system. Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
3GPP protocol definition LTE (LongTermEvolution, long evolving system) system six kinds of bandwidth 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, different bandwidth, identical reference signal (ReferenceSignal, it is called for short RS) power, there is identical coverage effect, but power consumption exists notable difference.
The embodiment of the present invention is by gathering, analyzing base station history KPI data, resource status model is set up for each community, and use trend and resource free time section according to the resource that model prediction community is following, it is achieved and system bandwidth, frequency range self-optimizing, reach energy-conservation purpose.
Concrete, the present invention provides the power-economizing method of a kind of frequency spectrum resource self-optimizing, as it is shown in figure 1, comprise the steps:
Step S101, based on the history KPI data of each community, sets up the resource status model of each community;
The specific implementation of this step is: (1), with time period of setting as unit of time, gathers the KPI data of each community; (2) add up each community KPI data of D days, analyze the resource service condition of each community each time period, obtain the resource status model of each community; Wherein D is preset value.
Step S102, the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
Step S103, for the community meeting resource optimization condition, uses tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistributes frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
Set forth based on above-mentioned principle, several concrete and preferred implementation are given below, carry out the specific implementation process of resource optimization in order to the described method of clearer explanation. It should be noted that following manner individually can be combined use with above-mentioned steps S101��103, it is also possible to be that multiple mode is combined use with above-mentioned steps S101��103 simultaneously.
In the present embodiment, set up resource status model and predict that the resource of each community uses tendency and resource idle period, can be completed by base station, but in order to not affect base station efficiency, complete more preferably in network management server, after network management server obtains resource use tendency and the resource idle period of community, pass it to the base station of correspondence, base station carry out resource optimization control.
Further, in method described in the present embodiment, given in step S103 only use tendency by resource, it is determined that the bandwidth that community is applicable. But, this mode does not consider the real resource service condition of community, it is possible to can exist and use the bandwidth determined of tendency less than the situation of currently practical desire bandwidth by resource, in turn result in system overload and exit energy saver mode. In order to avoid the generation of this situation, the present invention provides a kind of preferred implementation, which not only allows for resource and uses tendency, it is also contemplated that the resource service condition that community is actual, better optimizes the solution of the present invention. Specific as follows:
Tendency is used, it is determined that the bandwidth B 1 that community is suitable for according to corresponding resource;
According to the resource service condition that community is current, it is determined that the spendable lowest-bandwidth B2 in community;
When B2 is more than B1, be more than or equal to B2 for criterion, finally determine a bandwidth, otherwise, with B1 for the bandwidth finally determined.
Determine that bandwidth mode becomes apparent from so that above-mentioned, be exemplified below:
Citing 1:
Citing 2:
Energy saver mode can use bandwidth as: 1.4M, 3M, 5M, 10M, 15M, the number of users that each bandwidth is held and the Radio Resource provided are different; When doing bandwidth selection, it is necessary to carry out judging to use which kind of bandwidth, otherwise easily cause system overload and exit energy saver mode in conjunction with Current resource service condition.
Further, in method described in the present embodiment, consider the ageing of resource optimization, when carrying out resource optimization, with the time granularity of cell resource status model for the cycle, tendency is used according to corresponding resource at each cycle due in, determine the bandwidth that this cycle of community is suitable for, and judge that whether the bandwidth of this bandwidth and current application is identical, when difference, the width of the bandwidth currently to determine, redistributes frequency range for community. It is to say, at one's leisure in section, repeatedly carry out bandwidth and determine, and redistribute frequency range, more can practical requirement so that optimizing the resource parameters obtained.
Further, in method described in the present embodiment, resource optimization condition also include but not limited to for: arrive set resource optimization adjust the cycle, and/or, Current resource utilization rate lower than set first threshold.
Further, in method described in the present embodiment, also include: when certain community meets and exits resource optimization condition, recover the resource parameters of community to initial value; Described meet exit resource optimization condition include but not limited to for: resource free time section terminates, or, Current resource utilization rate higher than set Second Threshold.
Further, in method described in the present embodiment:
Before redistributing frequency range for community, the terminal of community is switched to adjacent area, after redistributing frequency range for community, resource parameters change information is notified adjacent area, and the terminal meeting switching condition is switched back to former community;
Before the resource parameters recovering community, the terminal of community being switched to adjacent area, after the resource parameters recovering community, information of being recovered by resource parameters notifies adjacent area, and the terminal meeting switching condition is switched back to former community.
Wherein, switching condition, briefly (ignore the parameters such as hysteretic threshold) herein, refer to: the RSRP+n of the Reference Signal Received Power RSRP > Serving cell of Target cell, n is handover measurement report reporting thresholding, general value is 1-3dbm, and base station switches over judgement according to the measurement report of terminal to report, performs.
Further, in method described in the present embodiment, width according to described bandwidth, frequency range is redistributed for community, realize preferably by following manner: choose unit with the bandwidth width determined for frequency range, to reduce presence of intercell interference for principle, choose a frequency allocation to respective cell at original tape alleviating distention in middle-JIAO.
Wherein, choose unit with the bandwidth width determined for frequency range, to reduce presence of intercell interference for principle, original tape alleviating distention in middle-JIAO choose a frequency allocation to the implementation of respective cell can be, but not limited to for:
Original tape width is divided into N number of frequency range, and by each frequency range by 0,1 ..., N-1 label;
By the PCI of community with N for mould, obtain numerical value i, and give this community by the frequency allocation equal to i of the frequency range label; Wherein, N=INT (community original tape width/determine bandwidth), wherein INT represents and rounds.
In sum, adopt the method for the invention, community free time section and resource service condition tendency can be differentiated, and utilize free time section and resource service condition tendency, carry out resource optimization, improve frequency spectrum resource utilization rate, reached to lower interference and energy-saving effect.
Embodiment two
The embodiment of the present invention provides the power-economizing method of a kind of frequency spectrum resource self-optimizing, the method to realize principle and embodiment one identical, be merely given as more ins and outs of the present invention so that it is what provided by the invention method can be better described implements process.
The system framework figure of the power-economizing method application of frequency spectrum resource self-optimizing of the present invention is as in figure 2 it is shown, described method operates mainly in following two network element: base station system and network management server.
Base station system, as wireless network terminal access point, to the KPI data of network management server reporting subdistrict; And the local resource according to network management server prediction uses trend and free time section to carry out energy-efficient treatment.
Network management server, gathers the KPI data information of each community, and analyzes and processes, and sets up the resource status model of each community, it was predicted that the following resource in community uses trend and free time section so that it is energy-conservation that base station performs self-optimizing based on information of forecasting.
PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) carry the control information of terminal, PDSCH (PhysicalDownlinkSharedChannel, Physical Downlink Shared Channel) carry the downstream data traffic information of terminal, PUSCH (PhysicalUplinkSharedChannel, Physical Uplink Shared Channel) carries the upstream data service information of terminal; According to the RB utilization rate of the resource utilization of PDCCH Yu PDSCH/PUSCH, judgement system resource idle condition can be carried out.
Concrete, described in the embodiment of the present invention, the power-economizing method of frequency spectrum resource self-optimizing includes:
A, was divided into some time section by one day 24 hours;
Wherein, the time period was the unit of time of cell resource status model, and granularity can set: such as 30 minutes.
B, network management server gathers KPI data, and the statistical result according to D days, analyze the resource service condition drawing each community each time period, obtain the resource status model of community, may further determine that according to this resource status model the resource of community uses tendency and resource free time section;
Wherein, analyze and show that the resource service condition of each community each time period includes: the information such as the number of users of community in this time period, PDCCH utilization rate, RB utilization rate, handling capacity, bandwidth, whether overload;
Described D is the natural law of schema reference; Preferably, in the present invention when carrying out statistical analysis, working day, day off, festivals or holidays data separately process.
Illustrate analyzing the resource service condition obtaining community below in conjunction with Fig. 3, Fig. 4:
The resource service condition (such as number of users, RB utilization rate etc.) of each community has periodically, keeps again the diversity with other community simultaneously. As shown in Figure 3,4, it is the performance statistics (from the KPI data that India's airtel existing network obtains) of community one and Liang Ge community, the community two handling capacity service condition in two days respectively, can finding out roughly that there are two time periods community one, resource utilization is in low-down state (transverse axis is time, the longitudinal axis is handling capacity); Community two has a time period resource utilization to be in low-down state.
Therefore, processed by the statistical analysis of history KPI data, it can be determined that the substantially tendency of prediction local resource, it is possible to what better solve under cell data business life cycle, diversity situation is energy-conservation.
C, when community arrives self-optimizing time adjustment, just starts to judge whether to enter self-optimizing link;
In the present invention, self-optimizing can not be too frequent, otherwise can affect Consumer's Experience; To this, the present invention arranges a self-optimizing and adjusts the cycle, granularity can set: as every 30 minutes, when self-optimizing adjusts cycle arrival, determine whether currently whether be in resource idle period, and whether community PDCCH utilization rate is less than U1, and local resource utilization rate is less than R1, when all setting up, just enter self-optimizing link.
D, enters bandwidth self-optimizing pattern, will perform switching terminal, bandwidth self-optimizing, frequency range self-optimizing, notice four, adjacent area action, specific as follows:
D1, bandwidth self-optimizing: use trend (history bandwidth, number of users, RB utilization rate, whether transship) according to the resource of history, in conjunction with Current resource service condition (number of users, PDCCH utilization rate, RB utilization rate etc.), determine to use which kind of bandwidth B;
D2, frequency range self-optimizing: (original system default bandwidth is W)/(determining that using which kind of bandwidth is B)=(band number being divided into bandwidth B is N); N rounds, distribution Based PC I (PhysicalCellId, the physical district ID) characteristic of frequency range, by assignable frequency range by 0,1 ... N-1 label, community is pressed mod (PCI, N) and is distributed frequency range;
D3, switching terminal: the terminal of this community is switched to adjacent area; After community completes resource adjustment according to bandwidth self-optimizing and frequency range self-optimizing mode, the terminal switchback of switching condition will be met to former community.
D4, notifies adjacent area: after community completes resource adjustment according to bandwidth self-optimizing and frequency range self-optimizing mode, and resource adjustment information (frequency range, frequency amendment information) is notified adjacent area.
E, exits self-optimizing mode condition: community PDCCH utilization rate more than U2 or local resource utilization rate more than R2; Or, idle period terminates;
For the data service not allowing user happen suddenly temporarily, erroneous judgement is caused to exit energy saver mode, preferably, will move out self-optimizing mode condition to be optimized for: community in continuous a period of time T PDCCH utilization rate always more than U2 or community in continuous a period of time T resource utilization always more than R2; Or, idle period terminates; Wherein, T may be configured as 30 seconds.
When self-optimizing energy saver mode is exited in community, the terminal in Xian Jiang community is switched to adjacent area, then does frequency range, bandwidth recovery; After cell recovery is normal, the terminal switchback extremely original community of switching condition will be met.
Above-mentioned U1, R1 mentioned is the thresholding entering self-optimizing pattern, and U2, R2 exit the thresholding of self-optimizing pattern. The resource size of PDCCH determines open ended number of users, and its utilization rate also reflects number of users and the number of users that can access again from the side; And local resource refers to data field PDSCH and the PUSCH of up-downgoing, this resource, for the data traffic transmission of user, is allocated according to user's request. Therefore, adopting R and U as judgement factor, U1, R1 are as the thresholding whether entering Bandwidth adjustment, and U2, R2 move back as the thresholding exiting Bandwidth adjustment.
Provide one preferred embodiment of the present invention below according to Fig. 5��Fig. 9, and combine the description to embodiment, provide the ins and outs of the present invention further so that it is can be better described the present invention offer method implement process.
The Long Term Evolution of the present invention is based on the self-optimizing power-economizing method of temporal data model, as it is shown in figure 5, specifically include following steps:
Step 1, wireless network management server constantly gathers the KPI data of each community;
Step 2, the data gathered are analyzed processing by wireless network management server, set up resource status model for each community, according to the resource status model set up, it was predicted that community uses tendency and the resource idle period of community in the resource of follow-up time; Subsequently enter step 3.
Step 3, wireless network management server is reduce frequency to change judgements, adjust and possible affect Consumer's Experience, arrange one optimize and revise the cycle (as: 30 minutes), to optimizing and revising the cycle, just entrance step 4, otherwise waits always;
Step 4, base station obtains resource idle period and the resource use tendency information of each community from wireless network management server; Base station judges that whether current time is the resource idle period of some or multiple community, if so, then enters step 5, and otherwise rollback is to step 3;
Step 5, can base station judge enter self-optimizing adjustment; When meeting current area simultaneously, within the continuous print T1 time period, (T1 may be configured as 30 seconds) PDCCH utilization rate is less than preset value U1, and current area RB utilization rate is lower than preset value R1, then enter step 6, and otherwise rollback is to step 3;
Step 6, enters bandwidth self-optimizing link, uses potential model according to the resource of respective cell, and in conjunction with current number of users, PDCCH utilization rate, RB utilization rate, which bandwidth judgement is suitable for;
Step 7, it is judged that whether the bandwidth that the bandwidth of current application obtains with judgement is identical, if it is different, then enter step 8, otherwise enters step 11;
Step 8, enters frequency range self-optimizing link, (original system default bandwidth is W)/(determining that using which kind of bandwidth is B)=(band number being divided into bandwidth B is N); N rounds, the distribution Based PC I characteristic of frequency range, by assignable frequency range by 0,1 ... N-1 label, community is pressed mod (PCI, N) and is distributed frequency range; Subsequently enter step 9;
Step 9, is switched to adjacent area by the terminal in this community; Subsequently enter step 10;
Step 10, notifies other adjacent area by bandwidth of cell with frequency range amendment information; Now community completes to adjust, and meets the terminal of switching condition by switchback to former community; Subsequently enter step 11;
Step 11, base station monitors PDCCH utilization rate and RB utilization rate situation, when community, within continuous T 2 time period, (T2 may be configured as 30 seconds) PDCCH utilization rate is always more than U2, or RB utilization rate is always more than R2, then enter step 14, otherwise enter step 12;
Step 12, it is judged that whether this community free time section terminates, if terminating, entering step 13, otherwise skipping to step 15;
Step 13, the optimization time terminates, and the terminal of Xian Jiangzhe community switches to adjacent area, and cell recovery also notifies adjacent area, subsequently rollback then step 3;
Step 14, exits self-optimizing, and the terminal of Xian Jiangzhe community switches to adjacent area, and cell recovery also notifies adjacent area, subsequently rollback then step 2, this period resource service condition is updated;
Step 15, it may be judged whether arrive and new optimize and revise the moment, is then entrance step 16, and otherwise rollback is to step 11;
Step 16, it is judged that currently used bandwidth, whether consistent with the bandwidth of the subsequent time period using tendency (KPI statistical analysis) prediction according to resource, if consistent, retreat to step 11, be circulated judgement; Otherwise rollback is to step 6.
So that the logical relation between above steps becomes apparent from, providing Fig. 6, Tu6Yi community original tape width be 20M is example, by the mode illustrated, is described the concrete opportunity that above-mentioned steps performs.
Below in conjunction with two concrete examples, the implementation process of the present invention is illustrated:
Example 1: identical networking
Three communities of base station (eNodeB) are all identical networkings, and the initial bandwidth of each community is that (for TDD system, upstream and downstream bandwidth is 20M altogether for 20M; For FDD system, then each 20M of upstream and downstream bandwidth, this legend refers in particular to descending 20M);
The PCI of three communities (cell1, cell2, cell3) respectively 81,82,83, as shown in Figure 7;
According to temporal data model and current cell conditions, entrance energy saver mode is all adjudicated in three communities, and all adopts 5M bandwidth as bandwidth of cell;
20M bandwidth originally, is divided into 4 5M frequency ranges, and by 0,1,2,3 order labels, as shown in Figure 8;
The PCI of Cell1, cell2, cell3, with 4 for mould, the numerical value obtained is 1,2,3, therefore respectively the frequency range being numbered 1,2,3 is respectively allocated to Cell1, cell2, cell3, as shown in Figure 9;
Community, three, base station uses the 5M frequency range staggered respectively, had both reduced community power consumption, can reduce again presence of intercell interference after entering energy saver mode.
Example 2: inter-frequency networking
Three communities of base station (eNodeB) are all inter-frequency networkings, and the initial bandwidth of each community is that (for TDD system, upstream and downstream bandwidth is 20M altogether for 20M; For FDD system, then each 20M of upstream and downstream bandwidth, this legend refers in particular to descending 20M);
The PCI of three communities (cell1, cell2, cell3) respectively 81,82,83; As shown in Figure 7.
According to temporal data model and current cell conditions, entrance energy saver mode is all adjudicated in three communities, and all adopts 5M bandwidth as bandwidth of cell;
20M bandwidth originally, is divided into 4 5M frequency ranges, and by 0,1,2,3 order labels; As shown in Figure 8.
The PCI of Cell1, cell2, cell3, with 4 for mould, the numerical value obtained is 1,2,3, therefore respectively the frequency range being numbered 1,2,3 is respectively allocated to Cell1, cell2, cell3, as shown in Figure 10.
After community, three, base station enters energy saver mode, use 5M frequency range respectively, both reduced community power consumption, the area interference between eNB can be reduced again.
In sum, adopt the method for the invention, community free time section and resource service condition tendency, further resource of frequency range optimization can be differentiated, improve frequency spectrum resource utilization rate, reached to lower interference and energy-saving effect. According to laboratory test results: when reference signal power is 18dbm, under unloaded scene, 5M about 45w more low in energy consumption than 20M bandwidth; 1.4MHz and 3MHz is then lower. Having the idle period of 10 hours to calculate by average each community, each base station can save energy 2 degree of electricity every day, approximates 1.3 yuan; The bid of China Mobile 2 phase has 230,000 base station scales, and whole net at least can reduce grid electricity fee cost 300,000 yuan average every day when the time comes.
Embodiment three
The embodiment of the present invention provides a kind of network management server, as shown in figure 11, and including:
MBM 1010, for the history KPI data based on each community, sets up the resource status model of each community;
Prediction module 1020, for the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
Output module 1030, for using tendency and the output of resource idle period information to respective base station, so that base station uses tendency and resource idle period to carry out resource optimization according to the resource of community by the resource of each community of prediction.
Wherein, MBM 1010, in units of the concrete time period to set, gather the KPI data of each community; Add up each community KPI data of D days, analyze the resource service condition of each community each time period, obtain the resource status model of each community; Wherein D is preset value.
In sum, network management server described in the present embodiment, community free time section and resource service condition tendency can be differentiated, carry out resource optimization for base station and provide important parameter support.
Embodiment four
The embodiment of the present invention provides a kind of base station, as shown in figure 12, and including:
Information receiving module 1110, uses tendency and resource idle period information for obtaining network management server according to the resource of each community of the resource status model prediction of each community;
Resource optimization module 1120, for for the community meeting resource optimization condition, using tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistributes frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
Based on said structure framework and enforcement principle, several concrete and preferred implementation under the above constitution is given below, in order to refine and to optimize the function of base station of the present invention, is specifically related to following content:
In the present embodiment, resource optimization module 1120 determines that the mode of bandwidth that community is suitable for also includes:
Tendency is used, it is determined that the bandwidth B 1 that community is suitable for according to corresponding resource;
According to the resource service condition that community is current, it is determined that the spendable lowest-bandwidth B2 in community;
When B2 is more than B1, be more than or equal to B2 for criterion, finally determine a bandwidth, otherwise, with B1 for the bandwidth finally determined.
Further, in the present embodiment, resource optimization module 1120, it is further used for the time granularity of cell resource status model for the cycle, uses tendency at each cycle due according to corresponding resource, it is determined that the bandwidth that this cycle of community is suitable for, and judge that whether this bandwidth is identical with the bandwidth of current application, when difference, the width of the bandwidth currently to determine, redistribute frequency range for community.
Preferably, in resource optimization module 1120, described resource optimization condition also include but not limited to for: arrive set resource optimization adjust the cycle, and/or, Current resource utilization rate lower than set first threshold.
Further, resource optimization module 1120, it is additionally operable to, when certain community meets and exits resource optimization condition, recover the resource parameters of community to initial value; Described meet exit resource optimization condition include but not limited to for: resource free time section terminates, or, Current resource utilization rate higher than set Second Threshold.
Further, resource optimization module 1120, it is further used for before redistributing frequency range for community, the terminal of community is switched to adjacent area, after redistributing frequency range for community, resource parameters change information is notified adjacent area, and the terminal meeting switching condition is switched back to former community; And before the resource parameters recovering community, the terminal of community is switched to adjacent area, after the resource parameters recovering community, information of being recovered by resource parameters notifies adjacent area, and the terminal meeting switching condition is switched back to former community.
Further, resource optimization module 1120, choose unit with the bandwidth width determined for frequency range, to reduce presence of intercell interference for principle, choose a frequency allocation to respective cell at original tape alleviating distention in middle-JIAO.
Base station described in the present embodiment utilizes free time section and resource service condition tendency, carries out resource optimization, improves frequency spectrum resource utilization rate, has reached to lower interference and energy-saving effect.
Embodiment five
The embodiment of the present invention provides the energy conserving system of a kind of frequency spectrum resource self-optimizing, including the network management server described in embodiment three and the base station described in embodiment four.
Due to embodiment three, four, structure and function to network management server and base station has elaborated, so its structure and function not being repeated in the present embodiment.
Further, since the present embodiment comprises the network management server described in embodiment three, four and base station, so also possessing the technique effect described in embodiment three, four, and then, the technique effect that can reach for system described in the present embodiment does not also repeat at this.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (18)
1. the power-economizing method of a frequency spectrum resource self-optimizing, it is characterised in that including:
Based on the history keyword performance indications KPI data of each community, set up the resource status model of each community the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
For the community meeting resource optimization condition, use tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistribute frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
2. the method for claim 1, it is characterised in that the described history keyword performance indications KPI data based on each community, sets up the resource status model of each community, specifically includes:
With time period of setting as unit of time, gather the KPI data of each community;
Add up each community KPI data of D days, analyze the resource service condition of each community each time period, obtain the resource status model of each community; Wherein D is preset value.
3. the method for claim 1, it is characterised in that the described mode of bandwidth determining that community is suitable for also includes:
Tendency is used, it is determined that the bandwidth B 1 that community is suitable for according to corresponding resource;
According to the resource service condition that community is current, it is determined that the spendable lowest-bandwidth B2 in community;
When B2 is more than B1, be more than or equal to B2 for criterion, finally determine a bandwidth, otherwise, with B1 for the bandwidth finally determined.
4. the method as described in claim 1 or 3, it is characterised in that described according to corresponding resource use tendency, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistributes frequency range for community, specifically includes:
With the time granularity of cell resource status model for the cycle, tendency is used according to corresponding resource at each cycle due in, determine this cycle of community be suitable for bandwidth, and judge that whether this bandwidth is identical with the bandwidth of current application, when difference, the width of the bandwidth currently to determine, redistributes frequency range for community.
5. the method for claim 1, it is characterised in that described resource optimization condition also includes: arrive the resource optimization set and adjust the cycle, and/or, Current resource utilization rate is lower than the first threshold set.
6. the method for claim 1, it is characterised in that described method also includes:
When certain community meets and exits resource optimization condition, recover the resource parameters of community to initial value; Described meet exit resource optimization condition and include: resource free time section terminates, or, Current resource utilization rate is higher than the Second Threshold set.
7. method as claimed in claim 6, it is characterised in that in described method:
Before redistributing frequency range for community, the terminal of community is switched to adjacent area, after redistributing frequency range for community, resource parameters change information is notified adjacent area, and the terminal meeting switching condition is switched back to former community;
Before the resource parameters recovering community, the terminal of community being switched to adjacent area, after the resource parameters recovering community, information of being recovered by resource parameters notifies adjacent area, and the terminal meeting switching condition is switched back to former community.
8. the method for claim 1, it is characterised in that the width according to described bandwidth, frequency range is redistributed for community, farther include: choose unit with the bandwidth width determined for frequency range, to reduce presence of intercell interference for principle, choose a frequency allocation to respective cell at original tape alleviating distention in middle-JIAO.
9. method as claimed in claim 8, it is characterised in that the described bandwidth width to determine chooses unit for frequency range, to reduce presence of intercell interference for principle, chooses a frequency allocation to respective cell at original tape alleviating distention in middle-JIAO, specifically includes:
Original tape width is divided into N number of frequency range, and by each frequency range by 0,1 ..., N-1 label;
By the PCI of community with N for mould, obtain numerical value i, and give this community by the frequency allocation equal to i of the frequency range label; Wherein, N=INT (community original tape width/determine bandwidth), wherein INT represents and rounds.
10. a network management server, it is characterised in that including:
MBM, for the history KPI data based on each community, sets up the resource status model of each community;
Prediction module, for the resource status model according to each community, it was predicted that the resource of each community uses tendency and resource idle period;
Output module, for using tendency and the output of resource idle period information to respective base station, so that base station uses tendency and resource idle period to carry out resource optimization according to the resource of community by the resource of each community of prediction.
11. a base station, it is characterised in that including:
Information receiving module, uses tendency and resource idle period information for obtaining network management server according to the resource of each community of the resource status model prediction of each community;
Resource optimization module, for for the community meeting resource optimization condition, using tendency according to corresponding resource, it is determined that the bandwidth that community is suitable for, and the width according to described bandwidth, redistributes frequency range for community; Described resource optimization condition includes: in the resource idle period of prediction.
12. base station as claimed in claim 11, it is characterised in that described resource optimization module determines that the mode of the bandwidth that community is suitable for also includes:
Tendency is used, it is determined that the bandwidth B 1 that community is suitable for according to corresponding resource;
According to the resource service condition that community is current, it is determined that the spendable lowest-bandwidth B2 in community;
When B2 is more than B1, be more than or equal to B2 for criterion, finally determine a bandwidth, otherwise, with B1 for the bandwidth finally determined.
13. the base station as described in claim 11 or 12, it is characterized in that, described resource optimization module, it is further used for the time granularity of cell resource status model for the cycle, uses tendency at each cycle due according to corresponding resource, it is determined that the bandwidth that this cycle of community is suitable for, and judge that whether this bandwidth is identical with the bandwidth of current application, when difference, the width of the bandwidth currently to determine, redistribute frequency range for community.
14. base station as claimed in claim 11, it is characterised in that in described resource optimization module, described resource optimization condition also includes: arrive the resource optimization set and adjust the cycle, and/or, Current resource utilization rate is lower than the first threshold set.
15. base station as claimed in claim 11, it is characterised in that described resource optimization module, it is additionally operable to when certain community meets and exits resource optimization condition, recovers the resource parameters of community to initial value; Described meet exit resource optimization condition and include: resource free time section terminates, or, Current resource utilization rate is higher than the Second Threshold set.
16. base station as claimed in claim 15, it is characterized in that, described resource optimization module, it is further used for before redistributing frequency range for community, the terminal of community is switched to adjacent area, after redistributing frequency range for community, resource parameters change information is notified adjacent area, and the terminal meeting switching condition is switched back to former community; And before the resource parameters recovering community, the terminal of community is switched to adjacent area, after the resource parameters recovering community, information of being recovered by resource parameters notifies adjacent area, and the terminal meeting switching condition is switched back to former community.
17. base station as claimed in claim 11, it is characterised in that described resource optimization module, it is further used for the bandwidth width to determine and chooses unit for frequency range, to reduce presence of intercell interference for principle, choose a frequency allocation to respective cell at original tape alleviating distention in middle-JIAO.
18. the energy conserving system of a frequency spectrum resource self-optimizing, it is characterised in that including: the network management server described in claim 10, and the base station described in claim 11 to 17 any one.
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| CN201410648513.3A CN105636056B (en) | 2014-11-14 | 2014-11-14 | Energy-saving method, device and system for optimizing spectrum resources |
| PCT/CN2015/077693 WO2016074446A1 (en) | 2014-11-14 | 2015-04-28 | Method, apparatus, and system for energy conservation of frequency spectrum resource self-optimization |
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| CN105636056B (en) | 2021-04-02 |
| WO2016074446A1 (en) | 2016-05-19 |
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