CN105704792A - Energy-saving method and apparatus for base station along railway - Google Patents
Energy-saving method and apparatus for base station along railway Download PDFInfo
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- CN105704792A CN105704792A CN201410705625.8A CN201410705625A CN105704792A CN 105704792 A CN105704792 A CN 105704792A CN 201410705625 A CN201410705625 A CN 201410705625A CN 105704792 A CN105704792 A CN 105704792A
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Abstract
The invention provides an energy-saving method and an apparatus for a base station along a railway. The problems that in the scene along the railway, the closing and awakening of the base station are determined by employing a parameter threshold, the change of parameters is not obvious, the reasonable threshold is not easily set, and energy saving cannot be achieved are solved. The method includes: the increase variable quantity of a first preset parameter or a reduced variable quantity of the first preset parameter of a decision cell is obtained, wherein the first preset parameter refers to a network performance parameter capable of being increased influenced by a first cell when a train drives in the first cell and being reduced influenced by a second cell when the train drives out of the second cell, and the first cell, the decision cell, and the second cell are arranged in sequence in a chain and adjacent manner; when the increased variable quantity reaches a preset first variable quantity value, a first control instruction for deactivating the mode of low power consumption of the base station is sent to the base station of the decision cell; and when the reduced variable quantity reaches a preset second variable quantity value, a second control instruction for activating the mode of low power consumption of the base station is sent to the base station of the decision cell.
Description
Technical field
The present invention relates to Access Network field, particularly relate to power-economizing method and the device of a kind of Along Railway base station。
Background technology
Now, high-speed railway covers the area of most domestic, and its route is all selected in remote suburb, in order to provide the better network coverage, each mobile operator to set up corresponding supporting wireless base station along the railway for ensureing Consumer's Experience to the user in high ferro。The huge challenge that current high-speed mobile communications faces has:
(1). penetration loss is big。The new type train of high-speed railway adopts totally-enclosed carriage body construction, box body is the metal material such as rustless steel or aluminium alloy, glass for vehicle window is thicker glass material, leads outdoor wireless signal penetration loss in bullet train relatively greatly, brings bigger difficulty to the wireless coverage in car body。Different trains are due to the difference in material and speed, and it is very big for the penetration loss difference of wireless signal。The penetration loss that different angle of incidence is corresponding is different, and the penetration loss when signal vertical incidence is minimum。When the upright position distance railway of base station is nearer, the angle of incidence that footprint edges signal enters compartment is little, and penetration loss is big。
(2). Doppler frequency deviation。Train high-speed motion will cause Doppler frequency deviation, cause that receiving terminal receives signal frequency and changes, and the velocity correlation of the size of frequency change and speed and train。It is a great challenge that the big frequency deviation caused at a high speed promotes for receiver demodulation performance。
(3). switching is frequently。Due to limited coverage area of singly standing, train high-speed mobile will pass through the coverage of multiple community at short notice, causes handover between cells frequently, and then affects the overall performance of network。
It is generally adopted RRU (the abbreviation of Radioremoteunit along the railway at present, Remote Radio Unit) it is total to cellular technology, it is developed based on distribution-type base station architecture, zoomed out by RRU, one BBU (abbreviation of BuildingBasebandUnite, indoor baseband processing unit) under multiple sub cells physically adhere to different site separately, logically belong to same community。After the multiple RRU overlay areas belonging to same logic district partly overlap a chain of being connected, constitute the MPS process scheme of the applicable Along Railway of the high signal intensity of a strip, be conducive to increasing covering signal intensity, shown in Fig. 1。Mobile service under MPS process altogether, all sub cells all moment of up direction community altogether all keep reception state, the all moment broadcast channels in all sub cells of down direction community altogether keep emission state, and the sub cell that other channels only select quality best is launched。
DuoRRUGong community has the advantages of: (1) reduces the switching of minizone, improves handover success rate。RRU multi-site cellular technology altogether is widened the coverage of Liao Dan community greatly and (is covered 500 meters of calculating according to single sub cell, configure 8 sub cells, then cover and can reach nearly 4 kilometers), it is no longer necessary to switching altogether between the different sub cells of community, the substitute is the relay between different sub cell。Mobile platform only enters community switching and goes out community switching when passing through this overlay area, is realized the continuity of business by the switching between sub cell。(2) carrier frequency utilization rate is improved。Reduce frequency planning difficulty, reduce interference。The telephone traffic distribution of Along Railway has specific characteristics, and farther out, for an iron leg route, although there is continuous several MPS process, but main telephone traffic often focuses in a community train standoff distance。The overlay length of community has been elongated in RRU multi-site community altogether, improves the utilization rate of frequency, decreases the frequency interference of neighbor cell simultaneously。
But meanwhile, in DuoRRUGong community, the base station signal of railway mobile communication network continues to launch, whether train is had to pass through, base station all can provide enough signals when outwards radiation signal is to ensure train process in time, when not having train process, wastes a lot of resource energy；Additionally, there is overlapping covering the base station that the signal of railway mobile communication network and runner public-network are disposed, high ferro base station along the line adopts the long-term mode strengthening transmitting power to provide enough good service for the user on high ferro train, there is no high ferro train through out-of-date, owing to frequency range configures, sometimes also the public network that high ferro is neighbouring along the line can be caused serious interference。
Existing technical scheme is generally adopted wakes up based on the isoparametric base station of load, closes。It is adapted to compensate for community and the scene of energy-saving cell layered coverage, when compensating when cell load exceedes setting threshold value to the wake-up call instruction of transmission community, energy-saving cell, activates energy-saving cell and process user's access request；The latter selectively closes off energy-saving cell when load declines。This scheme proposes for the tidal effect of user in the cellular network of city, starting energy-saving community when load is higher than certain threshold value by day, turns off energy-saving cell and reach power saving and improve the purpose of system energy efficiency time when load is low at night with certain threshold value。
But above-mentioned technical scheme one threshold value of needs when judgement waken up based on the isoparametric base station of load, close, along the railway in this train under the unfixed scene of number of users, the isoparametric threshold value of load is difficult to configure, if being arranged to a less threshold value, easily causing erroneous judgement, not reaching energy-conservation purpose。
Concrete reason is, Along Railway is in the energy-conservation little base station that the base station of low-power consumption mode is different from Hierarchical Network, the latter has compensation base station to cover, when integral load is relatively low, compensate base station and can also carry a part of load, load judges need not be accurate especially, but the base station that Along Railway is in low-power consumption mode is exclusively used in train user, other base stations typically no cover, when there being any train user to arrive, even if when train user is considerably less, Along Railway base station also all must realize waking up in advance accurately。
Therefore, prior art there is problems of under Along Railway scene, use parameter threshold level when judging the closedown of base station and wake up, be not easy to arrange reasonably threshold value owing to Parameters variation is inconspicuous, therefore do not reach should have energy-conservation。
Summary of the invention
It is an object of the invention to provide the power-economizing method of a kind of Along Railway base station and device, when solving to use parameter threshold level judge the closedown of base station and wake up under Along Railway scene, it is not easy to arrange reasonably threshold value owing to Parameters variation is inconspicuous, does not therefore reach and should have energy-conservation problem。
In order to solve above-mentioned technical problem, the present invention provides the power-economizing method of a kind of Along Railway base station, is applied to decision-making community, and described method includes:
Obtain the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
When described increase variable quantity reaches to preset the first change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
When described reduction variable quantity reaches to preset the second change value, send the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Wherein, the power-economizing method of described Along Railway base station also includes:
Described decision-making community receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Described decision-making community receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
Further, described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
The present invention provides the power-economizing method of a kind of Along Railway base station, is applied to Serving cell, and described Serving cell is the chain neighbor cell of decision-making community, and described method includes:
Obtaining the increase variable quantity of the second parameter preset of described Serving cell or reduce variable quantity, wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
When the increase variable quantity of described second parameter preset is for presetting the 3rd change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
When the reduction variable quantity of described second parameter preset is for presetting the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
After Preset Time is opened in the base station of described decision-making community, send the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Further, when the described increase variable quantity at described second parameter preset is for presetting the 3rd change value, send the step of the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community, particularly as follows:
When the increase variable quantity of described second parameter preset is for presetting the 3rd change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
Further, when the described reduction variable quantity at described second parameter preset is for presetting the 4th change value, send the step of the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community, particularly as follows:
When the reduction variable quantity of described second parameter preset is for presetting the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
Further, described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
Accordingly, the present invention provides the energy saver of a kind of Along Railway base station, is applied to decision-making community, and described device includes:
First acquisition module, for obtaining the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
First sending module, for when described increase variable quantity reaches to preset the first change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
Second sending module, for when described reduction variable quantity reaches to preset the second change value, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Further, the energy saver of described Along Railway base station also includes:
First receiver module, receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Second receiver module, receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
Further, described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
The present invention provides the energy saver of a kind of Along Railway base station, is applied to Serving cell, and described Serving cell is the chain neighbor cell of decision-making community, and described device includes:
Second acquisition module, for obtaining the increase variable quantity of the second parameter preset of described Serving cell or reducing variable quantity, wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
3rd sending module, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
When the reduction variable quantity of described second parameter preset is for presetting the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
4th sending module, for, after Preset Time is opened in the base station of described decision-making community, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Further, described 3rd sending module includes:
First sends submodule, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
Further, described 3rd sending module includes:
Second sends submodule, for when the reduction variable quantity of described second parameter preset is for presetting the 4th change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
Further, described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
Having the beneficial effect that of the technique scheme of the present invention:
In the solution of the present invention, by when by the increase variable quantity of the first parameter preset of the decision-making community of the first community impact for presetting the first change value, the first control instruction of the low-power consumption mode of deexcitation base station is sent so that the base station of decision-making community is become normal mode of operation from low-power consumption mode to the base station of described decision-making community；Value is being changed for presetting second by the reduction variable quantity of the first parameter preset of the decision-making community of the first community impact, the second control instruction of the low-power consumption mode activating base station is sent to the base station of described decision-making community, the base station making decision-making community is become low-power consumption mode from normal mode of operation, after reaching corresponding conditions thereby through the change at the first parameter preset, send control instruction to the base station of decision-making community and trigger the duty changing base station, so normally it is in low-power consumption mode in situation, the low-power consumption mode of activation or deexcitation base station when the first parameter preset change, thus Parameters variation is easily monitored and saves energy under the premise not affecting QoS of customer, also judge the arrival of train accurately and leave, the base station being only in just unlatching decision-making community in the decision-making community of Along Railway and neighbor cell at train is operated, reach more accurate, more efficient energy-conservation purpose。
Accompanying drawing explanation
Fig. 1 is RRU multi-site community schematic diagram altogether；
Fig. 2 is one of step schematic diagram of power-economizing method of Along Railway base station of the embodiment of the present invention；
Fig. 3 is one of Along Railway energy-saving scheme scene schematic diagram of the embodiment of the present invention；
Fig. 4 is the meansigma methods of the interference noise detected on the up each PRB in base station of the decision-making community of the embodiment of the present invention；
Fig. 5 is one of step schematic diagram of power-economizing method of Along Railway base station of the embodiment of the present invention；
Fig. 6 is one of Along Railway energy-saving scheme scene schematic diagram of the embodiment of the present invention；
Fig. 7 is one of structure chart of energy saver of Along Railway base station of the embodiment of the present invention；
Fig. 8 is one of structure chart of energy saver of Along Railway base station of the embodiment of the present invention。
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments。
In order to for easy reference is described in greater detail below, it should be noted that the meansigma methods of the interference noise detected on each PRB of system uplink is for weighing a numerical value of the neighbor cell interference of decision-making community in network, each PRB (the abbreviation of Physicalresourceblock of concrete system uplink, Physical Resource Block) on the relation of the meansigma methods of interference noise that detects and level of interference, as shown in table 1。
LTE (LongTermEvolution, Long Term Evolution) exceedes-120dBm and namely thinks the interference of neighbor cell user that there is self-decision community as requested
The present invention is directed in prior art when using parameter threshold level judge the closedown of base station and wake up under Along Railway scene, it is not easy to arrange reasonably threshold value owing to Parameters variation is inconspicuous, therefore do not reach and should have energy-conservation problem, power-economizing method and the device of a kind of Along Railway base station are provided, the base station of control decision community is come by the situation of change of parameter preset, the low-power consumption mode of activation or deexcitation base station when Parameters variation, it is possible to reach more accurate, more efficient energy-conservation purpose。
As in figure 2 it is shown, the power-economizing method of the power-economizing method of the Along Railway base station of the embodiment of the present invention, being applied to decision-making community, described method includes:
Step 201, obtain the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
Increase variable quantity or the reduction variable quantity of wherein said first parameter preset refer in the arbitrary community having train in the chain neighbor cell of both sides, decision-making community, make the change information of the subzone network performance parameter that decision-making community had influence on by described train, may refer to the change increasing or reducing of load, it can be the change of the meansigma methods of the interference noise detected on each PRB of system uplink of decision-making community, any having the train arbitrary community in neighbor cell, described both sides, first change information of the subzone network performance parameter being had influence on by described train and the type of parameter preset belong to protection scope of the present invention and differ at this citing。
Step 202, when described increase variable quantity reaches to preset the first change value, sends the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
Send first control instruction of low-power consumption mode of deexcitation base station to the base station of decision-making community, be become normal mode of operation for trigger base station from low-power consumption mode。Wherein said first change value can carry out sets itself, the numerical value of any change that can embody the first parameter preset according to user's request and network demand, belongs to scope。
Step 203, when described reduction variable quantity reaches to preset the second change value, sends the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community；
Send second control instruction of low-power consumption mode of deexcitation base station to the base station of decision-making community, be become low-power consumption mode for trigger base station from normal mode of operation。Wherein said second change value can carry out sets itself according to user's request and network demand; the numerical value of any change that can embody the first parameter preset; belong to scope; wherein said first change value can be identical numerical value with described second change value, and concrete condition is determined according to practical application。
After step 202 performs, the base station of described decision-making community is in normal operating conditions, when from the community sailed into out after carry out decision-making community and sail into from decision-making community next adjacent community process, decision-making cell base station is at duty, after rolling away from from next neighbor cell, diminishing at the first parameter preset, when obtaining reduction variable quantity by step 203, the base station of described decision-making community is in low power consumpting state。
Wherein to be all belonging between the base station of decision-making community internal automatically carries out execution and complete for step 201 to the process sending first control instruction level the second control instruction in step 203。
Wherein control signaling and second to the transmission control base station first, base station of described decision-making community and control the duty that signaling is for the base station of control decision community。The handoff procedure of the duty of the base station of decision-making community is to need predetermined time span to respond, and general response time includes but do not limit: monitors the judgement time, sends the process time of instruction and wake base station time up。Wherein, the monitoring judgement time generally may be configured as 10s, the process time sending instruction can be ignored substantially, base station activation or deexcitation low-power consumption mode conversion time are different according to the degree of dormancy, each hardware boot-up time is approximately: power amplifier and RF small signals are us rank, are usually no more than 15us；The startup time of if system is longer, different with hardware technological level, is a minute rank to the maximum。And for the community that overlay length is 4km; if train speed is 300km/h; in the logic district of certain 4km length; the time that then train is resident in the cell is 48s; the degree of depth of base station dormancy can be selected according to the overall duration of response time; performing above step in time allowed band, any dormancy length that can perform and response time belong to protection scope of the present invention, and differ a citing at this。
Assume 30 minutes one train, in the logic district that certain 4km (data from Anshan company) is long, train speed is 300 kilometer per hours, 0.8 minute is had only to equal to 48 seconds through this community, assume 6 hours of night to have a rest in one day the inside, within 18 hours, run, then base station needs the time at least opened to be: 36 train numbers are multiplied by 48s and are multiplied by 2 to equal to 57.6 minutes, only less than one hour, other 23 hours all can be closed。Even if considering to open the time of base station, the waiting time closing base station and shut-in time, energy-saving potential is also very big。
In above-mentioned steps 201 to step 203, by obtain decision-making community the first parameter preset increase variable quantity and reduce variable quantity (step 201), when by the increase variable quantity of the first parameter preset of the decision-making community of the first community impact for presetting the first change value, the first control instruction of the low-power consumption mode of deexcitation base station is sent to the base station of described decision-making community, the base station making decision-making community is become normal mode of operation (step 202) from low-power consumption mode, value is being changed for presetting second by the reduction variable quantity of the first parameter preset of the decision-making community of the second community impact, the second control instruction of the low-power consumption mode activating base station is sent to the base station of described decision-making community, the base station making decision-making community is become low-power consumption mode (step 203) from normal mode of operation。After reaching corresponding conditions thereby through the change at the first parameter preset, send control instruction to the base station of decision-making community and trigger the duty changing base station, so normally it is in low-power consumption mode in situation, can activate or the low-power consumption mode of deexcitation base station when the first parameter preset change, thus Parameters variation is easily monitored and saves energy under the premise not affecting QoS of customer, also judge the arrival of train accurately and leave, the base station being only in just unlatching decision-making community in the decision-making community of Along Railway and neighbor cell at train is operated, reach more accurate, more efficient energy-conservation purpose。
Obtain, in order to be more than self monitoring, the duty that information is controlled the base station of decision-making community, it is also possible to the duty of the base station of control decision community by other means, therefore in the power-economizing method of the Along Railway base station of the embodiment of the present invention, also include:
Step 11, described decision-making community receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Step 12, described decision-making community receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
Specifically, in the power-economizing method of the Along Railway base station of the embodiment of the present invention, described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
Only in high ferro, the quick movement of train so that parameter has significant change, therefore can be exemplified below with the change decision-making of the meansigma methods of the interference noise detected on the up each PRB of decision-making cell system。
In the network environment of honeycomb, the meansigma methods of the interference noise that the up each PRB of decision-making cell system detects is relevant with the white noise of surrounding, and environment difference has the difference of about 10dB；Simultaneously also relevant with varying in size of the neighbor cell portfolio of decision-making community, when the neighbor cell portfolio of decision-making community is big, this numerical value can raise accordingly。Under certain fixed environment, owing to portfolio change is relatively slow, this numerical value is relatively stable。In the wireless environment that high ferro is along the line, owing to base station only services for train user, when user accesses the neighbor cell of decision-making community, causing that this numerical value has obvious rising, the change of the meansigma methods of the interference noise therefore detected on the up each PRB in the base station of available decision community comes the base station of decision-making community and opens and closes。
Citing one:
Around decision-making community, Liang Ge community no user accesses, then this only noisy interference, and the environment being in due to base station is different, and noise jamming numerical value differs greatly。When train has accessed the adjacent community A in decision-making community in the process of moving, as shown in Figure 3, if owing to be there is interference in decision-making community B, the meansigma methods that can cause the interference noise detected on up each PRB in decision-making community has obvious rising on former noisy basis, Fig. 4 is under two kinds of environment that noise jamming is different, the meansigma methods of the interference noise detected on up each PRB is schemed over time, it is considered that mean change exceedes the-10dBm interference that namely there is the neighbor cell user of self-decision community。Therefore, after the meansigma methods of the interference noise detected on decision-making district monitoring to up each PRB increases-10dBm, namely can be judged as that the neighbor cell of decision-making community has user to access, thus trigger base station deexcitation low-power consumption mode。
After train rolls the neighbor cell of next decision-making community of decision-making community B away from, the base station of decision-making community detects that the meansigma methods of the interference noise detected on up each PRB declines, therefore when the meansigma methods of the interference noise detected on each PRB of decision-making cell uplink have dropped 10dBm after, may determine that the neighbor cell user for decision-making community has been moved off, thus triggering own base stations to activate low-power consumption mode。
Citing two:
When train has accessed the adjacent community C in decision-making community in the process of moving, if owing to be there is interference in decision-making community B, the meansigma methods that can cause the interference noise detected on up each PRB in decision-making community has obvious rising on former noisy basis, Fig. 4 is under two kinds of environment that noise jamming is different, the meansigma methods of the interference noise detected on up each PRB is schemed over time, it is considered that mean change exceedes the-15dBm interference that namely there is the neighbor cell user of self-decision community。Therefore, after the meansigma methods of the interference noise detected on decision-making district monitoring to up each PRB increases-15dBm, namely can be judged as that the neighbor cell of decision-making community has user to access, thus trigger base station deexcitation low-power consumption mode。
After train rolls the neighbor cell A of next decision-making community of decision-making community B away from, the base station of decision-making community detects that the meansigma methods of the interference noise detected on up each PRB declines, therefore when the meansigma methods of the interference noise detected on each PRB of decision-making cell uplink have dropped 15dBm after, may determine that the neighbor cell user for decision-making community has been moved off, thus triggering own base stations to activate low-power consumption mode。
As it is shown in figure 5, the power-economizing method of the Along Railway base station of another embodiment of the present invention, being applied to Serving cell, described Serving cell is the chain neighbor cell of decision-making community, and described method includes:
Step 501, obtains the increase variable quantity of the second parameter preset of described Serving cell or reduces variable quantity, and wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
The increase variable quantity of wherein said second parameter preset or reduction variable quantity refer to the adjacent serving cell users average RSRP (abbreviation of Referencesignalreceivedpowerload of chain adjacent base station; load reference signal receives power) change of numerical value; any differ at this citing having the train arbitrary community in neighbor cell, described both sides, the first change information of the subzone network performance parameter being had influence on by described train and the type of parameter preset to belong to protection scope of the present invention。
Step 502, when the increase variable quantity at described second parameter preset reaches to preset the 3rd change value, sends the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
Step 503, when the reduction variable quantity at described second parameter preset reaches to preset the 4th change value, sends the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
Wherein said 3rd change value and described 4th change value can carry out sets itself according to user's request and network demand; the numerical value of any change that can embody the second parameter preset; belong to scope; wherein said 3rd change value can be identical numerical value with described 4th change value, and concrete condition is determined according to practical application。
Step 504, after Preset Time is opened in the base station of described decision-making community, sends the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Wherein said Preset Time can need ask and network demand according to user, it is possible to sets itself, any so that the base station of decision-making community is entered into the time span of the state of low-power consumption mode by normal mode of operation, can belong to protection scope of the present invention。
Decision-making base station can also be passed through when detecting and obtain the increase variable quantity of the second parameter preset in the base station of this decision-making community voluntarily or reduce variable quantity, when then getting the reduction variable quantity arrival default change value in decision-making community, activate the low-power consumption mode of the base station of decision-making community。
In step 501 to step 504, get the increase variable quantity of the second parameter preset of the base station of Serving cell or reduce variable quantity (step 501), then variable quantity and the reduction variable quantity Serving cell after reaching corresponding conditions that increases of the second parameter preset sends the duty (step 502 and step 503) of control instruction triggering change base station to the base station of decision-making community, last in order to decision-making base station can be closed, it is possible to by carrying out closing the base station (step 504) of decision-making community after setting Preset Time。So keep original pattern constant when parameter is unchanged, when Parameters variation by the low-power consumption mode of the activation of other triggering command decision-making communities, community or deexcitation base station, under the premise not affecting QoS of customer, it is also convenient for detection Parameters variation, saves base station simultaneously and start the energy consumed always。
Concrete, in the power-economizing method of the Along Railway base station of another embodiment of the present invention, step 502 particularly as follows:
Step 21, when the increase variable quantity at described second parameter preset reaches to preset the 3rd change value, sends the first control instruction of the low-power consumption mode of deexcitation base station via preset interface to the base station of described decision-making community。
Wherein said preset interface may refer to X2 interface。
Concrete, in the power-economizing method of the Along Railway base station of another embodiment of the present invention, step 503 particularly as follows:
Step 31, when the reduction variable quantity at described second parameter preset reaches to preset the 4th change value, sends the first control instruction of the low-power consumption mode of deexcitation base station via preset interface to the base station of described decision-making community
Wherein said preset interface may refer to X2 interface。
The first control instruction controlling base station operation state is sent to the base station of described decision-making community by step 21 or step 31, then the base station of step 11 and step 12 decision-making community receives the first control instruction, realize the deexcitation low-power consumption mode of the base station of control decision community by other means, reach more accurate, more efficient energy-conservation purpose。
Concrete, in the power-economizing method of the Along Railway base station of another embodiment of the present invention, described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
Only in high ferro, the quick movement of train so that parameter has significant change, therefore can be exemplified below with the change decision-making of the average RSRP numerical value of the neighbor cell user of decision-making community。
Along the railway, owing to community is in regular chainlike distribution, the RSRP signal intensity of user is the change in rule accordingly also。Access in the process of neighbor cell of decision-making community user, the RSRP value of user is accessed in the neighbor cell of decision-making community obvious rising, therefore, it can the monitoring adjacent zones with decision-making community to the change of RSRP value judge that base station enters and activate or deexcitation low-power consumption mode。The scene of concrete scheme is as shown in Figure 6。
Citing one: when train sails Serving cell into, when Serving cell monitoring self accesses the RSRP numerical value rising of user, X2 mouth can be passed through and send the signaling of deexcitation low-power consumption mode to decision-making community B, response time described above mainly includes monitoring judgement time, instruction transmission time and base station wakeup time, 3GPP (abbreviation of generationpartnershipproject, third generation partner program) advises X2 signaling plane time 10-20ms。So, the configurable maximum monitoring time of support is 48s, 20ms and 15us, and in this scheme, base station has time enough to perform monitoring and execution wakes up, and therefore decision-making community can enter deeper of low-power consumption mode。
Citing two: when train is about to roll away from Serving cell, when Serving cell monitoring self accesses the RSRP numerical value reduction of user, now sends the signaling of deexcitation low-power consumption mode to community B, and now, the maximum detection time of support is 6s, 20ms and 15us。In this scheme, base station performs monitoring and the time performing to wake up is less, but energy-conservation dynamics is also larger, can select concrete scheme according to practical situation during enforcement。
This motion utilizes the feature that train chain community along the railway changes through out-of-date each parameter regularity, the situation of change of parameter is monitored by the base station monitors of decision-making community or chain adjacent base station, the low-power consumption mode of activation or deexcitation base station when Parameters variation, it is possible to more accurate, more efficient judges arriving and departing from of train user。
In addition, also have the advantages such as process simply and widely market application foreground。Along with the lifting that high ferro is further universal and its service quality and cost are lowered the requirement by operator, the range of application of this technology can be more and more wider。
Along the railway, owing to community is in regular chainlike distribution, the movement of user also presents the change of rule, for the feature that Along Railway train user changes through Along Railway each chain community parameter regularity, this motion monitors the situation of change of parameter by this base station of decision-making district monitoring or chain adjacent base station and carrys out the waking up and closing of base station of control decision community, change to the change of the meansigma methods of the interference noise detected on the up each PRB of decision-making cell system or the average RSRP numerical value of neighbor cell user of decision-making community, keep original pattern constant when parameter is unchanged, the low-power consumption mode of activation or deexcitation base station when Parameters variation。Relative to existing scheme, what this motion can be more accurate, more efficient judges arriving and departing from of train user, saves energy under the premise not affecting QoS of customer。
As it is shown in fig. 7, corresponding, the energy saver of the Along Railway base station of another embodiment of the present invention, it is applied to decision-making community, described device includes:
First acquisition module 701, for obtaining the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
First sending module, for when described increase variable quantity reaches to preset the first change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
Second sending module 702, for when described reduction variable quantity reaches to preset the second change value, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
By the first acquisition module 701 obtain decision-making community the first parameter preset increase variable quantity and reduce variable quantity, then when by the increase variable quantity of the first parameter preset of the decision-making community of the first community impact for presetting the first change value, first sending module sends the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community, the base station making decision-making community is become normal mode of operation from low-power consumption mode, last is being default second change value by the reduction variable quantity of the first parameter preset of the decision-making community of the second community impact, second sending module 702 sends the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community, the base station making decision-making community is become low-power consumption mode from normal mode of operation。After reaching corresponding conditions thereby through the change at the first parameter preset, send control instruction to the base station of decision-making community and trigger the duty changing base station, so normally it is in low-power consumption mode in situation, can activate or the low-power consumption mode of deexcitation base station when the first parameter preset change, thus Parameters variation is easily monitored and saves energy under the premise not affecting QoS of customer, also judge the arrival of train accurately and leave, the base station being only in just unlatching decision-making community in the decision-making community of Along Railway and neighbor cell at train is operated, reach more accurate, more efficient energy-conservation purpose。
The energy saver of the Along Railway base station of another embodiment of the present invention also includes:
First receiver module, receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Second receiver module, receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
In the energy saver of the Along Railway base station of another embodiment of the present invention, described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
As shown in Figure 8, the present invention also provides for the energy saver of the Along Railway base station of an embodiment, is applied to Serving cell, and described Serving cell is the chain neighbor cell of decision-making community, and described device includes:
Second acquisition module 801, for obtaining the increase variable quantity of the second parameter preset of described Serving cell or reducing variable quantity, wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
3rd sending module 802, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
When the reduction variable quantity of described second parameter preset is for presetting the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
4th sending module 803, for, after Preset Time is opened in the base station of described decision-making community, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
Got the increase variable quantity of the second parameter preset of Serving cell by the second acquisition module 801 or reduce variable quantity, then the second parameter preset increase variable quantity and reduce variable quantity after reaching corresponding conditions, 3rd sending module 802 Serving cell sends control instruction to the base station of decision-making community and triggers the duty changing base station, last in order to decision-making base station can be closed, it is possible to set Preset Time and carry out closing the base station of decision-making community by the 4th sending module 803。So keep original pattern constant when parameter is unchanged, when Parameters variation by the low-power consumption mode of the activation of other triggering command decision-making communities, community or deexcitation base station, under the premise not affecting QoS of customer, it is also convenient for detection Parameters variation, saves base station simultaneously and start the energy consumed always。
In the energy saver of the Along Railway base station of another embodiment of the present invention, described 3rd sending module 802 includes:
First sends submodule, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
In the energy saver of the Along Railway base station of another embodiment of the present invention, described 3rd sending module 802 includes:
Second sends submodule, for when the reduction variable quantity of described second parameter preset is for presetting the 4th change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
In the energy saver of the Along Railway base station of another embodiment of the present invention, described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
It should be noted that device provided by the invention is the device of the power-economizing method of Along Railway base station, then all embodiments of the power-economizing method of above-mentioned Along Railway base station are all suitable in this device, and all can reach same or analogous beneficial effect。
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention。
Claims (14)
1. a power-economizing method for Along Railway base station, is applied to decision-making community, it is characterised in that described method includes:
Obtain the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
When described increase variable quantity reaches to preset the first change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
When described reduction variable quantity reaches to preset the second change value, send the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
2. method according to claim 1, it is characterised in that also include:
Described decision-making community receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Described decision-making community receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
3. method according to claim 1, it is characterised in that described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
4. a power-economizing method for Along Railway base station, is applied to Serving cell, and described Serving cell is the chain neighbor cell of decision-making community, it is characterised in that described method includes:
Obtaining the increase variable quantity of the second parameter preset of described Serving cell or reduce variable quantity, wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
When increase variable quantity at described second parameter preset reaches to preset the 3rd change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
When reduction variable quantity at described second parameter preset reaches to preset the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
After Preset Time is opened in the base station of described decision-making community, send the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
5. method according to claim 4, it is characterized in that, when the described increase variable quantity at described second parameter preset reaches to preset the 3rd change value, send the step of the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community, particularly as follows:
When increase variable quantity at described second parameter preset reaches to preset the 3rd change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
6. method according to claim 4, it is characterized in that, when the described reduction variable quantity at described second parameter preset reaches to preset the 4th change value, send the step of the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community, particularly as follows:
When reduction variable quantity at described second parameter preset reaches to preset the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
7. method according to claim 4, it is characterised in that described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
8. an energy saver for Along Railway base station, is applied to decision-making community, it is characterised in that described device includes:
First acquisition module, for obtaining the reduction variable quantity increasing variable quantity or described first parameter preset of the first parameter preset of described decision-making community, wherein said first parameter preset is become network performance parameter that is big and that diminished by the impact of described second community when train rolls the second community away from when train sails the first community into by the impact of described first community, and described first community, described decision-making community and described second community are adjacent in catenation successively；
First sending module, for when described increase variable quantity reaches to preset the first change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
Second sending module, for when described reduction variable quantity reaches to preset the second change value, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
9. device according to claim 8, it is characterised in that also include:
First receiver module, receives the first control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered normal mode of operation by low-power consumption mode；Or
Second receiver module, receives the second control instruction of Serving cell in the chain neighbor cell of self-decision community for described decision-making community, and the base station triggering described decision-making community is entered low-power consumption mode by normal mode of operation。
10. device according to claim 8, it is characterised in that described first parameter preset is the meansigma methods of the interference noise detected on the up each Physical Resource Block PRB in base station of described decision-making community。
11. an energy saver for Along Railway base station, being applied to Serving cell, described Serving cell is the chain neighbor cell of decision-making community, it is characterised in that described device includes:
Second acquisition module, for obtaining the increase variable quantity of the second parameter preset of described Serving cell or reducing variable quantity, wherein said second parameter preset is the parameter that train sailed/rolled away from that described Serving cell makes the network performance parameter of described Serving cell change into；
3rd sending module, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；Or
When the reduction variable quantity of described second parameter preset is for presetting the 4th change value, send the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community；
4th sending module, for, after Preset Time is opened in the base station of described decision-making community, sending the second control instruction of the low-power consumption mode activating base station to the base station of described decision-making community。
12. device according to claim 11, it is characterised in that described 3rd sending module includes:
First sends submodule, for when the increase variable quantity of described second parameter preset is for presetting the 3rd change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
13. device according to claim 11, it is characterised in that described 3rd sending module includes:
Second sends submodule, for when the reduction variable quantity of described second parameter preset is for presetting the 4th change value, sending the first control instruction of the low-power consumption mode of deexcitation base station to the base station of described decision-making community via preset interface。
14. device according to claim 11, it is characterised in that described second parameter preset is community user average load Reference Signal Received Power RSRP numerical value。
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