CN106211296B - A kind of base station power control method - Google Patents
A kind of base station power control method Download PDFInfo
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- CN106211296B CN106211296B CN201510229333.6A CN201510229333A CN106211296B CN 106211296 B CN106211296 B CN 106211296B CN 201510229333 A CN201510229333 A CN 201510229333A CN 106211296 B CN106211296 B CN 106211296B
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Abstract
The present invention provides a kind of base station power control methods, this method comprises: macro base station determines that the value for turning down each small base station transmitting power for being currently at open state is P when needing to open a small base station for being currently at closed stateM/M‑PM/ (M+1), and notify each small base station for being currently at open state, make each small base station that transmission power is turned down PM/M‑PM/(M+1)；M is the number for being currently at the small base station of open state, PMFor when the sum of the transmission power of the small base station of top n；And the small base station for being currently at closed state is notified to open, with transmission power PM/ (M+1) emits signal.It can be improved the efficiency of the network of dense deployment with this solution.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of base station power control method.
Background technique
With the continuous promotion of wireless data traffic, the densification of network deployment becomes the important trend of future development.
On the one hand network-intensive deployment can will promote the data rate of unit area, but on the other hand but make entire
The interference level of network is promoted rapidly, is further promoted to constrain network performance.Intensive, the energy especially with network deployment
Consumption problem also gradually protrudes.
Summary of the invention
In view of this, the application provides a kind of Poewr control method, the network efficiency to solve the problems, such as dense deployment is low.
In order to solve the above technical problems, the technical solution of the application is achieved in that
A kind of base station power control method, applied on the macro base station for controlling N number of small base station, this method comprises:
When needing to open a small base station for being currently at closed state, the macro base station determination will be currently at unlatching
The value that each small base station transmitting power of state is turned down is PM/M-PM/ (M+1), and notify each small base for being currently at open state
It stands, makes each small base station that transmission power is turned down PM/M-PM/(M+1)；M is the number for being currently at the small base station of open state, PM
For when the sum of the transmission power of the small base station of top n；N is the integer greater than 1, and M is the integer for being not more than N greater than 0；
And the small base station for being currently at closed state is notified to open, with transmission power PM/ (M+1) emits signal.
As can be seen from the above technical solution, needing to open the small base station for being currently at closed state in the application
When, macro base station is according to the transmission power of small base station in the number and whole network of the small base station for being currently at open state
Summation determines the value that the transmission power of each small base station in the open state is turned down, and the transmitting for the small base station for needing to open
Power can be improved the efficiency of the network of dense deployment.
Detailed description of the invention
Fig. 1 is base station power control method flow diagram when needing to open small base station in the embodiment of the present application；
Fig. 2 is Poewr control method flow diagram when needing to close small base station in the embodiment of the present application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and examples,
Technical solution of the present invention is described in detail.
A kind of base station power control method is provided in the embodiment of the present application, a central controlled region of macro base station can portion
Multiple Small Cell Sites is affixed one's name to, connection is passed after having between macro base station and each small base station, macro base station can control each small base station with centralized dispatching.
Below by taking macro base station controls N number of small base station as an example, wherein N is the integer greater than 1.Each small base station in system
The maximum value of transmission power is preset upper limit transmission power threshold value, i.e., the transmission power of each small base station does not exceed the threshold value.
In each small base station of macro base station control, when needing to open a small base station for being currently at closed state, if
There is currently no small base stations in the open state, i.e., the small base station is first small base station opened, then notify to need
The small base station to be opened is opened, and to preset upper limit of emission power threshold emissions signal.
If each small base station of macro base station control is not opened, that is, when being in close state, the transmission power of small base station is
0。
Closing and opening in the embodiment of the present application is that each small base station is directed to for its corresponding user terminal, when one
A small base station is in close state, and is referred to that the small base station does not emit signal to user terminal, is not also received the letter of user terminal transmission
Number, but can be communicated between macro base station.
Referring to Fig. 1, Fig. 1 is that base station power control method process is illustrated when needing to open small base station in the embodiment of the present application
Figure.Specific steps are as follows:
Step 101, when needing to open a small base station for being currently at closed state, macro base station determination will be currently at
The value that each small base station transmitting power of open state is turned down is PM/M-PM/(M+1)。
In the present embodiment be currently at open state small base station for M, for need to opening M+1 small base stations.M is
It is currently at the number of the small base station of open state, PMFor as the sum of the transmission power of the small base station of top n, i.e. PMForN is
Integer greater than 1, M are the integer for being not more than N greater than 0.
Macro base station is determined the value that each small base station transmitting power for being currently at open state is turned down
Step 102, macro base station notice is currently at each small base station of open state, makes each small base station by transmission power tune
Low PM/M-PM/(M+1)。
After step 101, before executing step 102, the method further includes:
Traversal is currently at each small base station of open state, determines whether there is current transmission power for any small base station
Value is not more than PM/M-PMThe small base station of/(M+1)；If so, the small base station is notified to close；Otherwise, notify the small base station that will emit
Power turns down PM/M-PM/(M+1)。
Small base station receive macro base station transmission transmission power is turned down into PM/M-PMWhen the notice of/(M+1), by this small base station
Transmission power turn down PM/M-PM/(M+1)；
Step 103, the small base station that macro base station notice is currently at closed state is opened, with transmission power PM/(M+
1) emit signal.
Small base station receives macro base station and opens and with transmission power PMWhen/(M+1) emits the notice of signal, this base is opened
It stands, and with transmission power PM/ (M+1) emits signal.
After the small base station that macro base station notice is currently at closed state in step 103 is opened, further according to small
The path loss that base station reports determines whether to adjust the transmission power of small base station, specifically handle as follows:
All small base stations are mutually listened to after adjusting power, for any small base station, measure each small base station to should
The path loss of small base station, and it is reported to macro base station.
When macro base station receives the path loss between adjacent small base station that the small base station newly opened reports, the small of the new unlatching is determined
Base station is to the minimum path loss PL in the path loss of adjacent small base stationmin, work as PLminNot less than default path loss threshold value PLthWhen, notify that this is new
The small base station opened PL is turned up in transmission powerth/PLmin；Otherwise, the small base station of the new unlatching is notified to turn down transmission power
PLmin/PLth。
When specific implementation, it is also necessary to if considering after adjusting the transmission power of small base station according to path loss ratio, small base station
Whether transmission power arrives between default upper limit of emission power threshold value 0, if so, small base station is directly notified to adjust；It otherwise, need to be into
The processing of row response, specific as follows:
Work as PLminNot less than default path loss threshold value PLthConstantly, which determines the small base station transmitting power of the new unlatching
PL is turned upth/PLminLater, whether the transmission power of the small base station of the new unlatching is greater than PLth, if so, notifying the new unlatching
Small base station is turned up to PL by transmission powerth；Otherwise, notify the small base station of the new unlatching that PL is turned up in transmission powerth/PLmin；
Work as PLminLess than PLthWhen, which determines whether the transmission power of the small base station of the new unlatching is greater than PLmin/
PLth, if so, notifying the small base station of the new unlatching that transmission power is turned down PLmin/PLth；Otherwise, the small of the new unlatching is notified
Base station is closed.
Referring to fig. 2, Fig. 2 is Poewr control method flow diagram when needing to close small base station in the embodiment of the present application.Tool
Body step are as follows:
Step 201, when needing to close a small base station for being currently at open state, which will currently locate
In the value that each small base station transmitting power of open state is turned up be PQ/(Q-1)-PQ/Q。
The present embodiment is currently to open, i.e., for small base station in the open state is the small base stations Q, to close wherein one
A small base station.Wherein, Q is the number for being currently at the small base station of open state, PQFor when the transmission power of the small base station of top n
With i.e. PQForQ is the integer for being not more than N greater than 0.The macro base station, which determines, will be currently at each small base station of open state
Transmission power be turned up value be
Step 202, macro base station notice is currently at open state and does not need the small base station closed for transmission power tune
High PQ/(Q-1)-PQ/Q。
Determine that the value that each small base station transmitting power for being currently at open state is turned up is P in step 201Q/(Q-
1)-PQWhen/Q, if also needing to determine that P is turned up in power by each small base station in the open stateQ/(Q-1)-PQWhen/Q, if exceed
Default upper limit of emission power threshold value, specific processing mode are as follows:
Traversal is currently at each small base station of open state, determines that the small base station transmitting power is turned up for any small base station
PQ/(Q-1)-PQAfter/Q, whether the transmission power of the small base station is greater than default upper limit of emission power threshold value, if when, notice should
Small base station is turned up to default upper limit of emission power threshold value by transmission power；Otherwise, notify the small base station that P is turned up in transmission powerQ/
(Q-1)-PQ/Q。
It can be seen that P is turned up in transmission powerQ/(Q-1)-PQAfter/Q, transmission power is more than default upper limit of emission power threshold
When value, transmission power is adjusted to default upper limit of emission power threshold value.
Small base station receive macro base station transmission P is turned up in transmission powerQ/(Q-1)-PQWhen the notice of/Q, by this small base station
Transmission power be turned up PQ/(Q-1)-PQ/Q；
Small base station receive macro base station transmission height-regulatings transmission power to preset upper limit of emission power threshold value notice when, general
The transmission power of this small base station is turned up to default upper limit of emission power threshold value.
Step 203, the small base station that macro base station notice needs to close is closed.
When small base station receives the notice of this small base station of the closing of macro base station transmission, this small base station is closed.
In conclusion the application is when needing to open or close a small base station, hair of the macro base station to the small base station of control
It penetrates power to be adjusted, to reduce the interference in whole network between base station, and can be improved the effect of the network of dense deployment
Energy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (7)
1. a kind of base station power control method, applied on the macro base station for controlling N number of small base station, which is characterized in that this method packet
It includes:
When needing to open a small base station for being currently at closed state, the macro base station determination will be currently at open state
The value turned down of each small base station transmitting power be PM/M-PM/ (M+1), and notify each small base station for being currently at open state, make
Each small base station transmission power is turned down into PM/M-PM/(M+1)；M is the number for being currently at the small base station of open state, PMIt is current
The sum of the transmission power of N number of small base station；N is the integer greater than 1, and M is the integer for being not more than N greater than 0；
And the small base station for being currently at closed state is notified to open, with transmission power PM/ (M+1) emits signal.
2. the method according to claim 1, wherein macro base station determination will be currently at each of open state
The value that small base station transmitting power is turned down is PM/M-PMWhen/(M+1), the method further includes:
Traversal is currently at each small base station of open state, determines whether there is current transmission power value not for any small base station
Greater than PM/M-PMThe small base station of/(M+1)；If so, the small base station is notified to close；Otherwise, notify the small base station by transmission power
Turn down PM/M-PM/(M+1)。
3. the method according to claim 1, wherein the small base station for notifying to be currently at closed state
After unlatching, the method further includes:
When the macro base station receives the path loss between adjacent small base station that the small base station newly opened reports, the small of the new unlatching is determined
Base station is to the minimum path loss PL in the path loss of adjacent small base stationmin, work as PLminNot less than default path loss threshold value PLthWhen, notify that this is new
The small base station opened PL is turned up in transmission powerth/PLmin；Otherwise, the small base station of the new unlatching is notified to turn down transmission power
PLmin/PLth。
4. according to the method described in claim 3, it is characterized in that,
It is described to work as PLminNot less than default path loss threshold value PLthWhen, the method further includes:
Determine that PL is turned up in the small base station transmitting power of the new unlatchingth/PLminLater, the transmission power of the small base station of the new unlatching is
It is no to be greater than PLth, if so, notifying the small base station of the new unlatching that transmission power is turned up to PLth；Otherwise, the new unlatching is notified
Small base station PL is turned up in transmission powerth/PLmin；
Work as PLminLess than PLthWhen, the method further includes:
Determine whether the transmission power of the small base station of the new unlatching is greater than PLmin/PLth, if so, notifying the small base of the new unlatching
It stands and transmission power is turned down into PLmin/PLth；Otherwise, the small base station of the new unlatching is notified to close.
5. the method according to claim 1, wherein the method further includes:
When needing to open a small base station for being currently at closed state, if there is currently no small bases in the open state
It stands, then notifies the small base station for needing to open to open, and to preset upper limit of emission power threshold emissions signal.
6. method described in -5 any one according to claim 1, which is characterized in that the method further includes:
When needing to close a small base station for being currently at open state, each small base station of open state will be currently at by determining
The value that transmission power is turned up is PQ/(Q-1)-PQ/ Q, and notify to be currently at open state and do not need the small base station closed and will send out
It penetrates power and P is turned upQ/(Q-1)-PQ/Q；Wherein, Q is the number for being currently at the small base station of open state, PQFor when the small base of top n
The sum for the transmission power stood, Q are the integer for being not more than N greater than 0；
And the small base station for needing to close is notified to close.
7. according to the method described in claim 6, it is characterized in that, the determination will be currently at each small base station of open state
The value that transmission power is turned up is PQ/(Q-1)-PQWhen/Q, the method further includes:
Traversal is currently at each small base station of open state, determines that P is turned up in the small base station transmitting power for any small base stationQ/
(Q-1)-PQAfter/Q, whether the transmission power of the small base station is greater than default upper limit of emission power threshold value, if when, notify that this is small
Base station is turned up to default upper limit of emission power threshold value by transmission power；Otherwise, notify the small base station that P is turned up in transmission powerQ/
(Q-1)-PQ/Q。
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2015
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| CN104168636A (en) * | 2013-05-17 | 2014-11-26 | 中兴通讯股份有限公司 | Small cell power control method and device |
| CN103269515A (en) * | 2013-06-04 | 2013-08-28 | 北京邮电大学 | Low-complexity energy-saving wireless resource allocation method for densely deployed femtocell networks |
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