CN101990258A - Method and device for reducing power consumption - Google Patents
Method and device for reducing power consumption Download PDFInfo
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- CN101990258A CN101990258A CN2010105339589A CN201010533958A CN101990258A CN 101990258 A CN101990258 A CN 101990258A CN 2010105339589 A CN2010105339589 A CN 2010105339589A CN 201010533958 A CN201010533958 A CN 201010533958A CN 101990258 A CN101990258 A CN 101990258A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 embodiment of the invention discloses a method and a device for reducing power consumption, relates to the technical field of communication and solves the problem of high power consumption of a base station and a mobile phone. The method for reducing the power consumption comprises the following steps of: acquiring a required bandwidth of a cell, wherein the required bandwidth is in positive correlation with a load of the cell; judging the size relationship between the current configured bandwidth of the cell and the required bandwidth; if a judgment result indicates that the current configured bandwidth of the cell is greater than the required bandwidth, reducing the configured bandwidth of the cell; and if the judgment result indicates that the current configured bandwidth of the cell is smaller than the required bandwidth, increasing the configured bandwidth of the cell. The method and the device for reducing the power consumption can be used for all orthogonal frequency division multiplexing-based wireless systems.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and apparatus that reduces power consumption.
Background technology
Along with the continuous lifting of the continuous development of mobile service, user's requirement, mobile technology from original first generation analog communication, second generation digital communication, third generation broadband mobile technology, develop into the LTE (Long Term Evolution Long Term Evolution) of firm release.
The idle port communication of LTE is based on the mode of the dispatching communication of 1ms TTI, UE detects PDCCH (Physical DownlinkControl Channel Physical Downlink Control Channel) at the TTI of each activation (Transmission Time Interval Transmission Time Interval), if the schedule information at this UE (User Equipment subscriber equipment) is arranged, if down dispatch information, then receive corresponding PDSCH (Physical Downlink Shared Channel Physical Downlink Shared Channel) data according to schedule information, if uplink scheduling information, then carry out the transfer of data of up PUSCH (Physical UplinkShared Channel Physical Uplink Shared Channel) in the moment of regulation according to schedule information.
PDCCH takies all downlink bandwidths in sub-district on frequency domain.So the bandwidth of sub-district is big more, big more for the scope of UE search, and also the sub-district need measure the downlink reference signal of all bandwidth, and the power of consumption is also just big more; For the base station, the bandwidth of sub-district is big more, and transmitting power is big more, and treating capacity is also big more, and the power of consumption is also just big more.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus that reduces power consumption.
For achieving the above object, embodiments of the invention adopt following technical scheme:
Reduce the method for power consumption, comprising:
Obtain the demand bandwidth of sub-district, the load positive correlation of demand bandwidth and sub-district;
Judge the current configured bandwidth of sub-district and the magnitude relationship of demand bandwidth;
If judged result be the current configured bandwidth of sub-district greater than the demand bandwidth, then reduce the configured bandwidth of sub-district.
Fall low power consuming apparatus, comprising:
Demand bandwidth acquisition module is used to obtain the demand bandwidth of sub-district, the load positive correlation of demand bandwidth and sub-district;
Judge module is used to judge the current configured bandwidth of sub-district and the magnitude relationship of demand bandwidth;
First adjusting module, be used for when the judged result of judge module be: the current configured bandwidth of sub-district reduces the current area configured bandwidth during greater than the demand bandwidth.
The embodiment of the invention reduces the method for power consumption, by obtaining the demand bandwidth of sub-district, judges the magnitude relationship of current configured bandwidth in sub-district and demand bandwidth, if the current configured bandwidth in sub-district greater than the demand bandwidth, then reduces the current area configured bandwidth.Like this, for the base station, the bandwidth of sub-district reduces, and transmitting power reduces, and treating capacity has also reduced, and the power of consumption has also just reduced; For UE, the scope of search has reduced, and the PDCCH bandwidth range of detection has also reduced, and consumed power has also just reduced.
Description of drawings
Fig. 1 reduces the method flow diagram of power consumption for the embodiment of the invention;
Fig. 2 reduces another embodiment flow chart of the method for power consumption for the present invention;
Fig. 3 reduces the flow chart of bandwidth for the embodiment of the invention;
Fig. 4 increases the flow chart of bandwidth for the embodiment of the invention;
The structural representation of low power consuming apparatus embodiment 1 falls in Fig. 5 for the present invention;
The structural representation of low power consuming apparatus embodiment 2 falls in Fig. 6 for the present invention;
The structural representation of low power consuming apparatus embodiment 3 falls in Fig. 7 for the present invention;
The structural representation of low power consuming apparatus embodiment 4 falls in Fig. 8 for the present invention.
Embodiment
Below in conjunction with accompanying drawing the method and apparatus that the embodiment of the invention reduces power consumption is described in detail.
Fig. 1 is the method flow diagram of embodiment of the invention reduction power consumption, and as shown in Figure 1, the method that reduces power consumption comprises:
101, obtain the demand bandwidth of sub-district, the load positive correlation of demand bandwidth and sub-district;
Be understandable that the load of demand bandwidth and sub-district is proportionate, can comprise current area occupied bandwidth and for inserting the bandwidth of traffic assignments of sub-district usually.The load of sub-district can be determined according to parameters such as active user's number, professional QoS (Quality of Service, service quality), radio signal quality.
Because cell load can be relevant with a lot of scenes, adjust the cell configuration bandwidth according to the different scene embodiment of the invention according to cell load and can divide following at least two kinds of situations: a kind of is dynamic adjustment; A kind of is static the adjustment.Be understandable that below how explanation just estimates cell load among the embodiment for a better understanding of the present invention under different scenes, and the demand bandwidth of obtaining the sub-district according to cell load.
Mode one: the static adjustment
When the sub-district demand bandwidth and the relation of time or place or other relevant parameters present comparison rule relevant, NM server can be determined the different different transmitted bandwidths of time period employing according to time period information or other network planning information, sends to the base station by cell re-configuration information when needs conversion bandwidth of cell.
For example at 1:00 AM to 4 point and since usually in this time period the load of sub-district less, bandwidth of cell can be limited in the smaller scope; Perhaps since in the rural area or the remote mountain areas communication undeveloped, can be in smaller scope with the corresponding district bandwidth constraints.
Mode two: dynamically adjust
Mode two mainly can be applied in not to be had and the demand bandwidth of sub-district when presenting the correlation factor of evident regularity, by periodically obtaining sub-district demand bandwidth, adjusts the cell configuration bandwidth.Be mainly used in busier time of communication and location.
102, judge the current configured bandwidth of sub-district and the magnitude relationship of demand bandwidth;
In the rural area or the remote mountain areas communication undeveloped, if the bandwidth ratio broad that distributes: such as 10,000,000, actual 2,000,000 bandwidth have enough been used.The current area configured bandwidth is greater than the demand bandwidth.When needs were adjusted bandwidth of cell, radio network controller can send to the base station by cell re-configuration information (this information carries reprovision parameter 2,000,000).
In the time can't judging the rule of sub-district demand bandwidth, sub-district demand bandwidth may often change.In a default time point judgement current area configured bandwidth and the size between the demand bandwidth.
103, if judged result be the current configured bandwidth of sub-district greater than the demand bandwidth, then reduce the configured bandwidth of sub-district.
The static adjustment determines according to the cell re-configuration parameter whether needs are adjusted bandwidth of cell, and reprovision bandwidth of cell is if desired carried out following operation:
The RRM module generates broadcast message according to the bandwidth of cell (2,000,000) of new configuration; The RRM module generates corresponding configuration information and gives physical layer; Physical layer switches to new bandwidth (2,000,000) according to configuration information.
Perhaps, dynamically adjust bandwidth, for example according to default wide increase bandwidth of step and minimizing bandwidth; In reality behaviour operating process, when reducing bandwidth, require to reduce to new bandwidth from current bandwidth slowly.
The embodiment of the invention reduces the method for power consumption, by obtaining the demand bandwidth of sub-district, judges the magnitude relationship of current configured bandwidth in sub-district and demand bandwidth, if the current configured bandwidth in sub-district greater than the demand bandwidth, then reduces the current area configured bandwidth.Like this, for the base station, the bandwidth of sub-district reduces, and transmitting power reduces, and treating capacity has also reduced, and the power of consumption has also just reduced; For UE, the scope of search has reduced, and the PDCCH bandwidth range of detection has also reduced, and consumed power has also just reduced.
The demand bandwidth is dynamic change, and inventive point of the present invention is: according to the demand assignment bandwidth.When above having described current configured bandwidth in detail greater than the demand bandwidth, the adjustment way of bandwidth.When introducing current configured bandwidth below less than the demand bandwidth, the adjustment way of bandwidth.
Fig. 2 is the method flow diagram of embodiment of the invention reduction power consumption, and as shown in Figure 2, the method that reduces power consumption comprises:
201, obtain the demand bandwidth of sub-district, the load positive correlation of demand bandwidth and sub-district;
202, judge the current configured bandwidth of sub-district and the magnitude relationship of demand bandwidth;
203, if judged result be the current configured bandwidth of sub-district less than the demand bandwidth, then increase the cell configuration bandwidth.
Step 201,202 with step 101,102 identical, repeat no more.If the current configured bandwidth of sub-district then increases the cell configuration bandwidth less than the demand bandwidth in step 203; Increase the cell configuration bandwidth and should be noted that 2 points: 1, when increasing bandwidth, require to be increased to new bandwidth from current bandwidth fast; 2, the bandwidth increase has the upper limit, promptly is no more than the maximum configurable bandwidth in sub-district.
The present invention divides bandwidth as required for the sub-district, has reduced base station and power consumption of user equipment.
In order to guarantee network stabilization, reduce network congestion, the embodiment of the invention further comprises:
Fig. 3 is the flow chart of embodiment of the invention minimizing bandwidth, and as shown in Figure 3, the method that reduces bandwidth comprises:
301, judge whether current configured bandwidth arrives first threshold value greater than the time of demand bandwidth;
302, if judged result is for being, and current configured bandwidth is not minimum available bandwidth, then reduces the cell configuration bandwidth.
The bandwidth of cell adjustment is made as 6 grades: 0, the bandwidth of 1,2,3,4,5 correspondences is respectively: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz.First threshold value generally was made as 60 seconds, and it is long that this threshold value is established.Suppose that judged result is: the current area configured bandwidth is greater than the demand bandwidth in the time of the 3rd second.Can not lower bandwidth immediately this moment, and the correlation between current area configured bandwidth and the demand bandwidth can be continued to judge in the base station.Have only the current area configured bandwidth to surpass first threshold value greater than demand bandwidth and timing statistics, when two conditions all satisfy, just the current area configured bandwidth is turned down a rank, for example bandwidth is transferred to 10MHz from 15MHz.
By time threshold is set, according to limit in threshold value a period of time in bandwidth demand, adjust bandwidth, help the stable of maintaining network system.
Fig. 4 is the flow chart of embodiment of the invention increase bandwidth, as shown in Figure 4,
401, judge whether current configured bandwidth arrives second threshold value less than the time of demand bandwidth;
402, if judged result is for being, and current configured bandwidth is not maximum available bandwidth, then increases the cell configuration bandwidth.
Second threshold value generally was made as 5 seconds, and it is shorter that this threshold value is established.Suppose that judged result is: the current area configured bandwidth is less than the demand bandwidth in the time of the 3rd second.Can not transfer up bandwidth this moment immediately, and the correlation between current area configured bandwidth and the demand bandwidth can be continued to judge in the base station.Have only the current area configured bandwidth to surpass second threshold value greater than demand bandwidth and timing statistics, when two conditions all satisfy, just the current area configured bandwidth is turned down a rank, for example bandwidth is transferred to 10MHz from 5MHz.But, when the current area configured bandwidth is not enough, only need to wait for two seconds as can be seen, just adjust, promoted network work efficient.
By time threshold is set, according to limit in threshold value a period of time in bandwidth demand, adjust bandwidth, help the stable of maintaining network system.
In another embodiment, further, can when the magnitude relationship of the current bandwidth of judging the sub-district and demand bandwidth, also comprise, judge the current configured bandwidth of sub-district and demand bandwidth the absolute value of difference preset thresholding greater than one.When the current configured bandwidth in sub-district surpasses greater than the demand bandwidth should be default during thresholding, and surpass should preset thresholding the time less than the demand bandwidth when the current configured bandwidth in sub-district, just carry out follow-up cell configuration bandwidth set-up procedure.
By when the magnitude relationship of the current configured bandwidth of judging the sub-district and demand bandwidth, difference between two kinds is provided with a default thresholding, when difference reaches this thresholding, just start follow-up cell configuration bandwidth set-up procedure, further kept the stability of communication system.
The embodiment of the invention also provides a kind of low power consuming apparatus of falling, and Fig. 5 is the structural representation of this device embodiment 1, as shown in Figure 5, falls low power consuming apparatus and comprises:
Demand bandwidth acquisition module is used to obtain the demand bandwidth of sub-district, the load positive correlation of demand bandwidth and sub-district;
Judge module is used to judge the current configured bandwidth of sub-district and the magnitude relationship of demand bandwidth;
First adjusting module, be used for when the judged result of judge module be: the current configured bandwidth of sub-district reduces the current area configured bandwidth during greater than the demand bandwidth.
Low power consuming apparatus falls in the embodiment of the invention, by obtaining the demand bandwidth of sub-district, judges the magnitude relationship of current configured bandwidth in sub-district and demand bandwidth, if the current configured bandwidth in sub-district greater than the demand bandwidth, then reduces the current area configured bandwidth.Like this, for the base station, the bandwidth of sub-district reduces, and transmitting power reduces, and treating capacity has also reduced, and the power of consumption has also just reduced; For UE, the scope of search has reduced, and the PDCCH bandwidth range of detection has also reduced, and consumed power has also just reduced.
The structural representation of low power consuming apparatus embodiment 2 falls in Fig. 6 for the present invention, as shown in Figure 6, falling low power consuming apparatus comprises: demand bandwidth acquisition module, judge module and first adjusting module, the structure of these three modules and the function of realization are similar to Example 1, repeat no more.The embodiment of the invention is fallen low power consuming apparatus and also comprised: second adjusting module, when the judged result of judge module is: the current configured bandwidth of sub-district is during less than the demand bandwidth, and second adjusting module increases the cell configuration bandwidth.
In order to guarantee network stabilization, reduce network congestion, the embodiment of the invention has been done further improvement to first adjusting module:
The structural representation of low power consuming apparatus embodiment 3 falls in Fig. 7 for the present invention, as shown in Figure 7, falling low power consuming apparatus comprises: demand bandwidth acquisition module, judge module and first adjusting module, the structure of these three modules is identical with embodiment 1 with the function of realization, repeats no more.The improvement of this embodiment is: first adjusting module comprises:
First judging unit is used to judge the time of the current configured bandwidth in sub-district greater than the demand bandwidth, whether arrives first threshold value
First adjustment unit is used for if the judged result of first judging unit is when being, and current bandwidth is not minimum available bandwidth, minimizing cell configuration bandwidth.
By first judging unit, judge threshold value limit a period of time in bandwidth demand, first adjustment unit is adjusted bandwidth targetedly, thereby helps the stable of maintaining network system.
The structural representation of low power consuming apparatus embodiment 4 falls in Fig. 8 for the present invention, as shown in Figure 8, falling low power consuming apparatus comprises: demand bandwidth acquisition module, judge module, first adjusting module and second adjusting module, the structure of these three modules is identical with embodiment 2 with the function of realization, repeats no more.The improvement of this embodiment is: second adjusting module comprises:
Second judging unit is used to judge the time of the current configured bandwidth in sub-district less than the demand bandwidth, whether arrives second threshold value;
Second adjustment unit is used for if the judged result of second judging unit is for being, and current bandwidth is not maximum available bandwidth, increase cell configuration bandwidth.
By second judging unit, judge threshold value limit a period of time in bandwidth demand, first adjustment unit is adjusted bandwidth targetedly, thereby helps the stable of maintaining network system.
That describes in the foregoing description falls low power consuming apparatus and can be the base station.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a method that reduces power consumption is characterized in that, comprising:
Obtain the demand bandwidth of sub-district, the load positive correlation of described demand bandwidth and described sub-district;
Judge the current configured bandwidth of described sub-district and the magnitude relationship of described demand bandwidth;
If described judged result be the current configured bandwidth of described sub-district greater than the demand bandwidth, then reduce the configured bandwidth of described sub-district.
2. method according to claim 1 is characterized in that, described method also comprises:
If described judged result be the current configured bandwidth of described sub-district less than the demand bandwidth, then increase described cell configuration bandwidth.
3. method according to claim 1 is characterized in that, described if described judged result be the current configured bandwidth of described sub-district greater than the demand bandwidth, the step that then reduces the configured bandwidth of described sub-district comprises:
Judge whether described current configured bandwidth arrives first threshold value greater than the time of demand bandwidth;
If described judged result is for being, and current configured bandwidth is not minimum available bandwidth, then reduces described cell configuration bandwidth.
4. method according to claim 2 is characterized in that, described if described judged result be the current configured bandwidth of described sub-district less than the demand bandwidth, the step that then increases described cell configuration bandwidth comprises:
Judge whether described current configured bandwidth arrives second threshold value less than the time of demand bandwidth;
If described judged result is for being, and current configured bandwidth is not maximum available bandwidth, then increases described cell configuration bandwidth.
5. according to each described method in the claim 2 to 4, it is characterized in that described first threshold value is greater than described second threshold value.
6. one kind is fallen low power consuming apparatus, it is characterized in that, comprising:
Demand bandwidth acquisition module is used to obtain the demand bandwidth of sub-district, the load positive correlation of described demand bandwidth and described sub-district;
Judge module is used to judge the current configured bandwidth of described sub-district and the magnitude relationship of described demand bandwidth;
First adjusting module, be used for when the judged result of described judge module be: the current configured bandwidth of described sub-district reduces the current area configured bandwidth during greater than the demand bandwidth.
7. the low power consuming apparatus of falling according to claim 6 is characterized in that, also comprises:
Second adjusting module, be used for when the judged result of described judge module be: the current configured bandwidth of described sub-district increases described cell configuration bandwidth during less than the demand bandwidth.
8. device according to claim 6 is characterized in that, described first adjusting module comprises:
First judging unit is used to judge the time of the current configured bandwidth in described sub-district greater than the demand bandwidth, whether arrives first threshold value;
First adjustment unit is used for if the judged result of described first judging unit is when being, and current bandwidth is not minimum available bandwidth, reduces described cell configuration bandwidth.
9. device according to claim 7 is characterized in that, described second adjusting module comprises:
Second judging unit is used to judge the time of the current configured bandwidth in described sub-district less than the demand bandwidth, whether arrives second threshold value;
Second adjustment unit is used for if the judged result of described second judging unit is for being, and current bandwidth is not maximum available bandwidth, increases described cell configuration bandwidth.
10. according to each described device among the claim 6-9, it is characterized in that described device is the base station.
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| CN102170688A (en) * | 2011-05-26 | 2011-08-31 | 中国科学技术大学 | Load-based power configuration method and device capable of reducing energy consumption of base station |
| CN103313313A (en) * | 2013-05-31 | 2013-09-18 | 中国联合网络通信集团有限公司 | Transmission bandwidth sharing method and device |
| CN103327552A (en) * | 2012-03-19 | 2013-09-25 | 美国博通公司 | Power savings in a mobile communications device through dynamic control of processed bandwidth |
| WO2014000447A1 (en) * | 2012-06-27 | 2014-01-03 | 华为技术有限公司 | Bandwidth adjusting method between macro cell and micro cell, and base station |
| CN104053160A (en) * | 2014-06-25 | 2014-09-17 | 电信科学技术研究院 | Method and device for adjusting cell work frequency bands |
| CN104412683A (en) * | 2012-11-13 | 2015-03-11 | 三菱电机株式会社 | Radio access point apparatus and band control method |
| WO2017113801A1 (en) * | 2015-12-28 | 2017-07-06 | 中兴通讯股份有限公司 | Method and device for transmitting downlink data of cell |
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| WO2014000447A1 (en) * | 2012-06-27 | 2014-01-03 | 华为技术有限公司 | Bandwidth adjusting method between macro cell and micro cell, and base station |
| CN104412683A (en) * | 2012-11-13 | 2015-03-11 | 三菱电机株式会社 | Radio access point apparatus and band control method |
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| WO2017113801A1 (en) * | 2015-12-28 | 2017-07-06 | 中兴通讯股份有限公司 | Method and device for transmitting downlink data of cell |
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