CN108401282A - A kind of method and device of adaptive adjustment ascending power parameter - Google Patents
A kind of method and device of adaptive adjustment ascending power parameter Download PDFInfo
- Publication number
- CN108401282A CN108401282A CN201710064255.8A CN201710064255A CN108401282A CN 108401282 A CN108401282 A CN 108401282A CN 201710064255 A CN201710064255 A CN 201710064255A CN 108401282 A CN108401282 A CN 108401282A
- Authority
- CN
- China
- Prior art keywords
- power
- initial
- cell
- channel
- initial reception
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
Abstract
The invention discloses a kind of method and devices of adaptive adjustment ascending power parameter.This method includes：The noise jamming NI counted in predetermined period in bandwidth of cell is horizontal；The interference scene situation of change of cell is identified according to NI levels；The ascending power parameter of base station is adjusted according to interference scene situation of change.The present invention can adaptively adjust the relevant parameter of uplink power control in the case where area interference scene changes, and keep the influence of the interference-free scene changes of cell uplink overall performance, promote the user experience under interference scene variation.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of methods and dress of adaptive adjustment ascending power parameter
It sets.
Background technology
In LTE system, up channel includes PRACH (Physical Random Access Channel, physical accidental
Access channel), PUCCH (Physical Uplink Control Channel, physical uplink control channel), and
PUSCH (Physical Uplink Share Channel, Physical Uplink Shared Channel).LTE uplink power controls for this three
Kind channel has different power control strategy and approach configuring parameters.Under normal circumstances, base station needs to configure maximum transmission power,
Carry out the maximum value of limiting terminal uplink transmission power, which is denoted as Pmax, while base station needs to be respectively configured in LTE system
The initial reception power of these three channels, UE grades of power excursions etc., for PUSCH channels, it is also necessary to configure road loss compensation factor.
Ascending power parameter configuration in LTE system at present, including initially receive power, UE (User Equipment) grade work(
Rate offset, road loss compensation factor etc. mostly use OMC (Operation Management Center, operation management center) configurations
Scheme or carrier customization scheme.However both schemes are in actual application, it is difficult to adapt to all interference fields
Scape.Especially under certain extreme interference scenes, for example, burst different system interference, need artificially to go to change these ginsengs manually
Number, to meet the needs of client.But this method adjusted afterwards, for operator, interference can cause performance of the entire network
Difference, complaint is more, causes customer churn；For equipment manufacturer, increase human cost not timing is needed to go maintained equipment.
It is necessary therefore it provides one kind can adaptively adjust ascending power parameter according to the case where interference.
Invention content
The present invention provides a kind of method and device of adaptive adjustment ascending power parameter, in the prior art to solve
The problem of ascending power parameter needs manpower to safeguard and adjust not in time in LTE system.
For achieving the above object, the present invention uses following technical solutions：
One side according to the present invention provides a kind of method of adaptive adjustment ascending power parameter, including：
The noise jamming NI counted in predetermined period in bandwidth of cell is horizontal；
The interference scene situation of change of the cell is identified according to the NI levels；
The ascending power parameter of base station is adjusted according to the interference scene situation of change.
Further, the NI levels are average value, a system of average values, busy NI of the cell idle NI per RB per RB
Count any one of the NI maximum values in NI average values, busy NI maximum values or the measurement period in the period.
Further, the interference scene situation of change that the cell is identified according to the NI levels, including：
Obtain the difference of the NI levels and history NI levels；
When the difference is located in pre-set interval, then judge that interference level does not change；
When the difference is less than the minimum value of the pre-set interval, then judge that the interference level becomes smaller；
When the difference is more than the maximum value of the pre-set interval, then judge that the interference level becomes larger.
Further, described that the ascending power parameter of the cell is adjusted according to the interference scene situation of change
It is whole, including：
When the interference level becomes larger or the interference level becomes smaller and when the number that continuously becomes smaller is more than predetermined threshold value,
It is adjusted according to preset step value or according to the NI levels to the ascending power parameter.
Further, described to be carried out according to preset step value or according to the NI levels to the ascending power parameter
Adjustment, specifically includes：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge the difference of the ascending power parameter after the adjustment and the ascending power parameter of the current-configuration and presets
The size of threshold value, and when the difference is more than predetermined threshold value, then the ascending power parameter of base station is adjusted.
Further, described that the ascending power parameter is adjusted according to the NI levels, it specifically includes：
According to NI level calculations base station up channel initial reception power；
The size that power is initially received as defined in initial reception power and channel transmission protocols according to calculating determines base station
Initial reception power after adjustment, the initial reception power is the ascending power parameter.
Further, power is initially received as defined in the initial reception power according to calculating and channel transmission protocols
Size determines the initial reception power after the adjustment of base station, including：
If the initial power that receives calculated is less than the minimum value for initially receiving power as defined in channel transmission protocols, adjust
Initial reception power afterwards is the minimum value；
If the initial power that receives calculated is more than the maximum value for initially receiving power as defined in channel transmission protocols, adjust
Initial reception power afterwards is the maximum value；
If the initial reception power calculated is more than the minimum value and is less than the maximum value, initially connecing after adjustment
It is the initial reception power calculated to receive power.
Further, it is described according to NI level calculations base station up channel initial reception power, including：
When the up channel is Physical Uplink Shared Channel PUSCH, calculating the initial formula for receiving power is：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-P0_UE_PUSCH；Wherein,
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum-(SinrMCSX+
delta)
Wherein, P0_NominalPUSCH is the initial reception power；Pcmax is terminal uplink maximum transmission power；N
For the number of power control target resource block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；
DelAntNum is the conservative amount of antenna gain；SinrMCSXIt is that LTE system uses modulation target solution corresponding with coding strategy MCSX
Adjust signal and interference and noise ratio SINR；Delta is the surplus of the corresponding target demodulation SINR of MCSX；Alpha configures for cell
Road loss compensation factor；DeltaTPC is the compensation rate of Msg3 power control results.
Further, it is described according to NI level calculations base station up channel initial reception power, including：
When the up channel is physical uplink control channel PUCCH, the initial calculation formula for receiving power
For：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-10log10
(AntNum)+DelAntNum
Wherein, P0_NominalPUCCH is the initial reception power；SINRPUCCHFor PUCCH target demodulation signal with
Interference and noise ratio SINR；NIStaVal is bandwidth of cell NI horizontal；P0_UE_PUCCH is terminal power offset；
DeltaTPC is the compensation rate of Msg3 power control results；AntNum is uplink receiving antenna number；DelAntNum is conservative for antenna gain
Amount.
Further, it is described according to NI level calculations base station up channel initial reception power, including：
When the up channel is Physical Random Access Channel PRACH, calculating the initial formula for receiving power is：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-10log10(AntNum)+
DelAntNum
Wherein, preambleInitialReceivedTargetPower is the initial reception power；SINRPRACHFor
The detection threshold of PRACH；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number.
One side according to the present invention provides a kind of device of adaptive adjustment ascending power parameter, including：
Statistical module, it is horizontal for counting the noise jamming NI in bandwidth of cell in predetermined period；
Identification module, the interference scene situation of change for identifying the cell according to the NI levels；
Module is adjusted, for being adjusted to the ascending power parameter of base station according to the interference scene situation of change.
Further, the NI levels of the statistical module counts are average value, busy NI every RBs of the cell idle NI per RB
Average value, the NI average values in a measurement period, in the NI maximum values in busy NI maximum values or a measurement period
It is any.
Further, the identification module, is specifically used for：
Obtain the difference of the NI levels and history NI levels；
When the difference is located in pre-set interval, then judge that interference level does not change；
When the difference is less than the minimum value of the pre-set interval, then judge that the interference level becomes smaller；
When the difference is more than the maximum value of the pre-set interval, then judge that the interference level becomes larger.
Further, the adjustment module is specifically used for：
When the interference level becomes larger or the interference level becomes smaller and when the number that continuously becomes smaller is more than predetermined threshold value,
It is adjusted according to preset step value or according to the NI levels to the ascending power parameter.
Further, the adjustment module is specifically used for：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge the difference of the ascending power parameter after the adjustment and the ascending power parameter of the current-configuration and presets
The size of threshold value, and when the difference is more than predetermined threshold value, then the ascending power parameter of base station is adjusted.
Further, the adjustment module includes：
Computing unit is used for the initial reception power in up channel according to NI level calculations base station；
Determination unit, for initially receiving power as defined in the initial reception power and channel transmission protocols according to calculating
Size determines the initial reception power after the adjustment of base station, and the initial reception power is the ascending power parameter.
Further, the determination unit, is specifically used for：
If the initial power that receives calculated is less than the defined initial minimum value for receiving power as defined in channel transmission protocols,
Initial reception power after then adjusting is the minimum value；
If the initial power that receives calculated is more than the defined initial maximum value for receiving power as defined in channel transmission protocols,
Initial reception power after then adjusting is the maximum value；
If the initial reception power calculated is more than the minimum value and is less than the maximum value, initially connecing after adjustment
It is the initial reception power calculated to receive power.
Further, the computing unit, is specifically used for：
When the up channel is Physical Uplink Shared Channel PUSCH, calculating the initial formula for receiving power is：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-P0_UE_PUSCH；Wherein,
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum-(SinrMCSX+
delta)
Wherein, P0_NominalPUSCH is the initial reception power；Pcmax is terminal uplink maximum transmission power；N
For the number of power control target resource block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；
DelAntNum is the conservative amount of antenna gain；SinrMCSXIt is that LTE system uses modulation target solution corresponding with coding strategy MCSX
Adjust signal and interference and noise ratio SINR；Delta is the surplus of the corresponding target demodulation SINR of MCSX；Alpha configures for cell
Road loss compensation factor；DeltaTPC is the compensation rate of Msg3 power control results.
Further, the computing unit, is specifically used for：
When the up channel is physical uplink control channel PUCCH, the initial calculation formula for receiving power
For：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-10log10
(AntNum)+DelAntNum
Wherein, P0_NominalPUCCH is the initial reception power；SINRPUCCHFor PUCCH target demodulation signal with
Interference and noise ratio SINR；NIStaVal is bandwidth of cell NI horizontal；P0_UE_PUCCH is terminal power offset；
DeltaTPC is the compensation rate of Msg3 power control results；AntNum is uplink receiving antenna number；DelAntNum is conservative for antenna gain
Amount.
Further, the computing unit, is specifically used for：
When the up channel is Physical Random Access Channel PRACH, calculating the initial formula for receiving power is：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-10log10(AntNum)+
DelAntNum
Wherein, preambleInitialReceivedTargetPower is the initial reception power；SINRPRACHFor
The detection threshold of PRACH；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number.
The present invention has the beneficial effect that：
The method and device of adaptive adjustment ascending power parameter provided by the present invention, becomes in area interference scene
In the case of change, the relevant parameter of uplink power control can be adaptively adjusted, keeps cell uplink overall performance interference-free
The influence of scene changes promotes the user experience under interference scene variation.Due to taking adaptive Regulation mechanism, it is mutated in interference
When parameter can be adjusted in time, and entirely adjustment process without human intervention, effectively save traditional artificial maintenance
Expense reduces the maintenance cost of enterprise.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart of the adaptive adjustment ascending power parametric technique provided in the embodiment of the present invention；
Fig. 2 is the flow chart of identification interference scene variation in a specific embodiment of the invention；
Fig. 3 is the flow chart that ascending power parametric technique is adaptively adjusted in a specific embodiment of the invention；
Fig. 4 is the structure diagram of the adaptive adjustment ascending power parameter devices provided in the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of method of adaptive adjustment ascending power parameter, as shown in Figure 1, including following step
Suddenly：
Step 101, in predetermined period count bandwidth of cell on NI (Noise and Interference, noise and
Interference) it is horizontal.
In this step, the NI levels of statistics refer in bandwidth of cell per TTI (Transmission Time
Interval, Transmission Time Interval) in NI per RB it is horizontal.Here, the NI levels in bandwidth of cell can be carried out by predetermined period
Statistics.For predetermined period can either day or the moon be unit by the hour, user can set according to actual conditions.
When period starts, need to initialize all values.
Wherein, the RB of average value or busy NI can be using value as cell idle NI per to(for) the NI levels of bandwidth of cell
NI average values in average value per RB, or entire measurement period or busy NI maximum values, or entire statistics week
NI maximum values in phase etc..In the present invention specific restriction is not done for the value mode of NI levels.
Optionally, the NI levels of bandwidth of cell can select the value of NI levels according to specific usage scenario.For example, working as
When needing to detect in cell with the presence or absence of different system interference, then the value of the NI levels in bandwidth of cell can be cell idle NI
Average value per RB；Alternatively, when if necessary to judge that the atmospheric duct of sea covering or Plain covering interferes, in bandwidth of cell
NI levels can take the NI average values in entire measurement period, and predetermined period setting it is shorter be conducive to for interference with
Track；Alternatively, if necessary to tracking bursty interference, the NI levels in bandwidth of cell can take the statistical value of busy NI.
Step 102, the interference scene situation of change of cell is identified according to NI levels.
In this step, interference scene situation of change includes that interference level does not change, interference level becomes larger and does
The level of disturbing becomes smaller three kinds of situations.
Wherein, when interference scene situation of change for identifying cell according to NI levels, in Main Analysis bandwidth of cell
The difference of NI levels and history NI levels, and judge the size of the difference and preset first threshold value and default second threshold, specifically
As shown in Fig. 2, including as follows：
If the NI levels and the difference of history NI levels in bandwidth of cell are located in pre-set interval, interference level is judged
It does not change；
If the NI levels and the difference of history NI levels in bandwidth of cell are less than the minimum value of pre-set interval, judge dry
The level of disturbing becomes smaller, and the NI in the bandwidth of recording cell is horizontal；
If the NI levels and the difference of history NI levels in bandwidth of cell are more than the maximum value of pre-set interval, judge dry
The level of disturbing becomes larger, and the NI in the bandwidth of recording cell is horizontal.
Wherein, the minimum value of pre-set interval here is the difference of the preset thresholdings of NI and the preset thresholding retardation factors of NI, most
Big value second threshold be the preset thresholdings of NI with the preset thresholding retardation factors of NI and value.
Wherein, can be NI theoretical values for history NI levels, or the last time, statistics bandwidth of cell NI was horizontal, just
Beginning value is made an uproar the bottom of for.Specifically, for example, if it is determined that when cell whether there is different system interference, NI may be selected in history NI levels
Theoretical value；If it is determined that when the atmospheric duct interference of sea covering or Plain covering, last system may be selected in history NI levels
The bandwidth of cell NI levels or NI theoretical values of meter；If necessary to track bursty interference, last system may be selected in history NI levels
The bandwidth of cell NI of meter is horizontal.
Step 103, the ascending power parameter of cell is adjusted according to interference scene situation of change.
In this step, it when interference level does not change, need not be adjusted again.Become larger when interference level or
When interference level becomes smaller and the number continuously to become smaller is more than predetermined threshold value, according to preset step value or according to NI levels to upper
Row power parameter is adjusted.Wherein, it is carried out according to preset step value or according to NI levels to institute's ascending power parameter
Adjustment, specifically includes：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge adjustment after ascending power parameter and current-configuration ascending power parameter difference and predetermined threshold value it is big
It is small, and when difference is more than predetermined threshold value, then the ascending power parameter of base station is adjusted.
Specifically, as shown in figure 3, in one embodiment of the invention, according to interference scene situation of change to the uplink work(of cell
Rate parameter is adjusted, and is specifically comprised the following steps：
Step 301：When judging that interference level becomes smaller, 302 are thened follow the steps；Otherwise, step 303 is executed；
Step 302：It interferes the read-around ratio that becomes smaller to add 1, and judges that whether interference continuously becomes smaller number more than preset thresholding：If
It is more than, thens follow the steps 303, otherwise, exits.
In this step, within the time limit of judging whether NI levels continuously become smaller, history NI levels be without newer,
It only prescribes a time limit, then is updated more than preset gate in the number continuously to become smaller.
Step 303：It interferes the continuous statistics number that becomes smaller to reset, and determines the value after ascending power parameter adjustment.
Step 304：Judge that the value that value and base station after ascending power parameter adjustment are currently configured is compared：If the two
Difference adjusts amplitude and is more than predetermined threshold value (for example, 2dB), thens follow the steps 305；Otherwise, ascending power parameter is not adjusted
It is whole, directly exit.
Step 305, start broadcast modification process, notice base station other systems ascending power parameter has been changed and concrete modification
Value, and user is notified by idle message.
In the embodiment of the present invention, ascending power parameter be primarily referred to as base station up channel initial reception power.Into
When row ascending power parameter adjustment, the method that can take fixed step size can also be taken according to power control target value adaptive polo placement
Method.Wherein, for the method using fixed step size, when interference becomes larger, then base station is increased according to preset step value and existed
The initial reception power of up channel；When interference change is small, then base station is reduced in the first of up channel according to preset step value
Begin to receive power.
It mainly introduces and how the ascending power parameter of base station to be adjusted according to NI levels in the present invention.
It needs to carry out initial configuration to cell power parameter in advance, the first time adjustment for ascending power parameter judges.
Wherein, initial configuration is carried out to the ascending power parameter of PRACH channels, generally comprises initial reception power
PreambleInitialReceivedTargetPower etc..Initial configuration carried out to the ascending power parameters of PUCCH channels, one
As include initial receiving 0_NominalPUCCH and UE grades of power offset values P0-UE-PUCCH of power P etc..To PUSCH channels
Ascending power parameter carries out initial configuration, generally comprises power offset values on initial reception power P 0_NominalPUSCH and UE
The road loss compensation factor of P0_UE_PUSCH and PUSCH is alpha.
It introduces first, the adjustment according to NI levels to ascending power parameter in PUSCH channels.PUSCH work(in the present embodiment
Control desired value is RB=N, MCS (Modulation and Coding Scheme, modulation coding scheme)=X, for example, MCS2.
It is as follows according to power control target value and the path loss PL of bandwidth of cell NI level calculation terminal to base station, specific formula：
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum-(SinrMCSX+
delta) (1)
Wherein, Pcmax is terminal uplink maximum transmission power (for example, usually giving tacit consent to 23dBm)；N is power control target resource
The number of block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；DelAntNum is antenna gain
Conservative amount (for example, usually giving tacit consent to 2dB)；SinrMCSxFor the corresponding target demodulation signals of LTE MCSx and interference and noise ratio
SINR；Delta is the surplus (for example, usually giving tacit consent to 3dB) of the corresponding target demodulation SINR of MCSX.
Initial reception power P 0_NominalPUSCH is calculated according to the path loss PL of terminal to base station, formula is as follows：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-P0_UE_PUSCH (2)
Wherein, alpha is the road loss compensation factor of cell configuration；DeltaTPC is the compensation rate (example of Msg3 power control results
Such as, usually it is defaulted as -6dB), wherein Msg3 refers to that the RRC that terminal is sent establishes request or reconstruction request.
After the completion of the initial reception power calculation of adjustment, the initial reception power P 0_ according to calculating is needed
The initial size for receiving power of the regulation of NominalPUSCH and channel transmission protocols determines the initial reception work(after the adjustment of base station
Rate specifically includes as follows：
If the initial reception power calculated is less than minimum value as defined in channel transmission protocols, the initial reception work(after adjustment
Rate is minimum value as defined in channel transmission protocols；
If the initial reception power calculated is more than maximum value as defined in channel transmission protocols, the initial reception work(after adjustment
Rate is maximum value as defined in channel transmission protocols；
If the initial reception power calculated is more than minimum value and is less than maximum value, the initial reception power after adjustment is
The initial reception power calculated.
Then it introduces, the adjustment according to NI levels to ascending power parameter in PUCCH, according to power control target value
(SINRPUCCH) adaptive adjustment PUCCH initial reception power P 0_NominalPUCCH, referring specifically to following formula：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-10log10
(AntNum)+DelAntNum (3)
Wherein, SINRPUCCHFor the target demodulation signal and interference and noise ratio SINR of PUCCH；NIStaVal is small zone
Wide NI is horizontal；P0_UE_PUCCH is terminal power offset；DeltaTPC is the compensation rate of Msg3 power control results (for example, usually
It is defaulted as -6dB)；AntNum is uplink receiving antenna number；DelAntNum is the conservative amount of antenna gain (for example, acquiescence 2dB).
It is determined according to the size of the initial specified value for receiving power P 0_NominalPUCCH and channel transmission protocols of calculating
The initial reception power adjusted needed for base station is not being repeated here referring specifically to the mode in PUSCH channels.
It finally introduces, introduces the adjustment of ascending power parameter in PRACH channels.For PRACH power parameters, if it is considered that
The wireless percent of call completed of cell, it is proposed that do not make an amendment, if it is considered that access delay (being calculated since first time sends out PRACH), modification
Strategy can take the way of fixed step size, can also take according to power control target value (SINRPRACH) adaptive polo placement scheme.Tool
Body, in such a way that power control target value adjustment preambleInitialReceivedTargetPowe initially receives power such as
Under：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-10log10(AntNum)+
DelAntNum (4)
Wherein, SINRPRACHFor the detection threshold of PRACH；NIStaVal is bandwidth of cell NI horizontal；AntNum connects for uplink
Receive antenna number；DelAntNum is the conservative amount of antenna gain, gives tacit consent to 2dB.
According to the initial reception power preambleInitialReceivedTargetPowe and channel transmission protocols of calculating
The size of specified value determine the initial reception power adjusted needed for base station, referring specifically to the mode in PUSCH channels, here not
It is being repeated.
Either PUSCH channels, PUCCH channels or PRACH channels, after having determined channel adjustment as stated above
After initial reception power, the initial reception power (being for the first time initial configuration value) that the value and base station are currently configured is compared
Compared with the initial difference and predetermined threshold value (for example, 2dB) for receiving power for judging the initial reception power after adjustment and being currently configured
Size；When the difference be more than predetermined threshold value, then need to be adjusted the initial reception power of base station；If what is calculated initially connects
Receipts power is equal with original initial power or difference is less than predetermined threshold value, then without initially receiving reconfiguring for power.
When the initial reception power to base station is adjusted, starts broadcast modification process, notify in the other systems of base station
Row power parameter has been changed and concrete modification value, and notifies user by idle message.
The embodiment of the present invention additionally provides a kind of device of adaptive adjustment ascending power parameter, as shown in figure 4, including：
Statistical module 41, it is horizontal for counting the noise jamming NI in bandwidth of cell in predetermined period；
Identification module 42, the interference scene situation of change for identifying cell according to NI levels；
Module 43 is adjusted, for being adjusted to the ascending power parameter of base station according to interference scene situation of change.
Further, the NI levels that statistical module 41 counts are average value, busy NI every RBs of the cell idle NI per RB
In NI maximum values in average value, the NI average values in a measurement period, busy NI maximum values or a measurement period
It is any.
Further, identification module 42 are specifically used for：
Obtain the difference of NI levels and history NI levels；
When difference is located in pre-set interval, then judge that interference level does not change；
When difference is less than the minimum value of pre-set interval, then judge that interference level becomes smaller；
When difference is more than the maximum value of pre-set interval, then judge that interference level becomes larger.
Further, adjustment module 43 is specifically used for：
When interference level becomes larger or interference level becomes smaller and when the number that continuously becomes smaller is more than predetermined threshold value, according to default
Step value or ascending power parameter is adjusted according to NI levels.
Further, adjustment module 43 is specifically used for：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge adjustment after ascending power parameter and current-configuration ascending power parameter difference and predetermined threshold value it is big
It is small, and when difference is more than predetermined threshold value, then the ascending power parameter of base station is adjusted.
Further, adjustment module 43 includes：
Computing unit is used for the initial reception power in up channel according to NI level calculations base station；
Determination unit, for initially receiving power as defined in the initial reception power and channel transmission protocols according to calculating
Size determines that the initial reception power after the adjustment of base station, initial reception power are uplink further, it is determined that unit, specific to use
In：
If the initial power that receives calculated is less than the defined initial minimum value for receiving power as defined in channel transmission protocols,
Initial reception power after then adjusting is minimum value；
If the initial power that receives calculated is more than the defined initial maximum value for receiving power as defined in channel transmission protocols,
Initial reception power after then adjusting is maximum value；
If the initial reception power calculated is more than minimum value and is less than maximum value, the initial reception power after adjustment is
The initial reception power calculated.
Further, computing unit is specifically used for：
When up channel is Physical Uplink Shared Channel PUSCH, calculating the initial formula for receiving power is：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-P0_UE_PUSCH；Wherein,
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum-(SinrMCSX+
delta)
Wherein, P0_NominalPUSCH is initial reception power；Pcmax is terminal uplink maximum transmission power；N is work(
Control the number of target resource block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；DelAntNum
For the conservative amount of antenna gain；SinrMCSXIt using modulation target demodulation signal corresponding with coding strategy MCSX and is done for LTE system
It disturbs and noise ratio SINR；Delta is the surplus of the corresponding target demodulation SINR of MCSX；Alpha is the path loss compensation of cell configuration
The factor；DeltaTPC is the compensation rate of Msg3 power control results.
Further, computing unit is specifically used for：
When up channel is physical uplink control channel PUCCH, the calculation formula for initially receiving power is：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-10log10
(AntNum)+DelAntNum
Wherein, P0_NominalPUCCH is initial reception power；SINRPUCCHTarget demodulation signal for PUCCH and interference
With noise ratio SINR；NIStaVal is bandwidth of cell NI horizontal；P0_UE_PUCCH is terminal power offset；DeltaTPC is
The compensation rate of Msg3 power control results；AntNum is uplink receiving antenna number；DelAntNum is the conservative amount of antenna gain.
Further, computing unit is specifically used for：
When up channel is Physical Random Access Channel PRACH, calculating the initial formula for receiving power is：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-10log10(AntNum)+
DelAntNum
Wherein, preambleInitialReceivedTargetPower is initial reception power；SINRPRACHFor PRACH
Detection threshold；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number.
The method and device of adaptive adjustment ascending power parameter provided by the present invention, becomes in area interference scene
In the case of change, uplink power control relevant parameter can be adaptively adjusted, keeps the interference-free field of cell uplink overall performance
The influence of scape variation promotes the user experience under interference scene variation.Due to taking adaptive Regulation mechanism, when interfering mutation
Parameter can be adjusted in time, it is entire to adjust process without human intervention, the expense of traditional artificial maintenance is effectively saved, is dropped
The maintenance cost of low enterprise.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.For system embodiment
For, since it is basically similar to the method embodiment, the relevent part can refer to the partial explaination of embodiments of method.Also,
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that including
The process, method, article or equipment of a series of elements includes not only those elements, but also includes its being not explicitly listed
His element, or further include for elements inherent to such a process, method, article, or device.What is do not limited more
In the case of, the element that is limited by sentence "including a ...", it is not excluded that in the process including the element, method, article
Or there is also other identical elements in equipment.
In addition, one of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through
Hardware is completed, and relevant hardware can also be instructed to complete by program, and the program can be stored in a kind of computer
In readable storage medium storing program for executing, storage medium mentioned above can be read-only memory, disk or CD etc..
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (20)
1. a kind of method of adaptive adjustment ascending power parameter, which is characterized in that including：
The noise jamming NI counted in predetermined period in bandwidth of cell is horizontal；
The interference scene situation of change of the cell is identified according to the NI levels；
The ascending power parameter of base station is adjusted according to the interference scene situation of change.
2. the method as described in claim 1, which is characterized in that the NI levels are the average value of the every RB of cell idle NI, hurry
When NIs of the NI per the average value of RB, in the NI average values in a measurement period, busy NI maximum values or a measurement period
Any one of maximum value.
3. the method as described in claim 1, which is characterized in that the interference field for identifying the cell according to the NI levels
Scape situation of change, including：
Obtain the difference of the NI levels and history NI levels；
When the difference is located in pre-set interval, then judge that interference level does not change；
When the difference is less than the minimum value of the pre-set interval, then judge that the interference level becomes smaller；
When the difference is more than the maximum value of the pre-set interval, then judge that the interference level becomes larger.
4. method as claimed in claim 3, which is characterized in that it is described according to the interference scene situation of change to the cell
Ascending power parameter be adjusted, including：
When the interference level becomes larger or the interference level becomes smaller and when the number that continuously becomes smaller is more than predetermined threshold value, according to
Preset step value is adjusted the ascending power parameter according to the NI levels.
5. method as claimed in claim 4, which is characterized in that described according to preset step value or according to NI levels
The ascending power parameter is adjusted, is specifically included：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge the difference and predetermined threshold value of the ascending power parameter after the adjustment and the ascending power parameter of the current-configuration
Size, and when the difference be more than predetermined threshold value when, then the ascending power parameter of base station is adjusted.
6. method as described in claim 4 or 5, which is characterized in that described to be joined to the ascending power according to the NI levels
Number is adjusted, and is specifically included：
According to NI level calculations base station up channel initial reception power；
The size that power is initially received as defined in initial reception power and channel transmission protocols according to calculating determines that base station adjusts
Initial reception power afterwards, the initial reception power is the ascending power parameter.
7. method as claimed in claim 6, which is characterized in that the initial reception power according to calculating is assisted with transmission
The initial size for receiving power as defined in view determines the initial reception power after the adjustment of base station, including：
If the initial power that receives calculated is less than the minimum value for initially receiving power as defined in channel transmission protocols, after adjustment
The initial power that receives is the minimum value；
If the initial power that receives calculated is more than the maximum value for initially receiving power as defined in channel transmission protocols, after adjustment
The initial power that receives is the maximum value；
If the initial reception power calculated is more than the minimum value and is less than the maximum value, the initial reception work(after adjustment
Rate is the initial reception power calculated.
8. method as claimed in claim 6, which is characterized in that it is described according to NI level calculations base station in up channel
Initial reception power, including：
When the up channel is Physical Uplink Shared Channel PUSCH, calculating the initial formula for receiving power is：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-
P0_UE_PUSCH；Wherein,
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum -
(SinrMCSX+delta)
Wherein, P0_NominalPUSCH is the initial reception power；Pcmax is terminal uplink maximum transmission power；N is work(
Control the number of target resource block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；DelAntNum
For the conservative amount of antenna gain；SinrMCSXIt using modulation target demodulation signal corresponding with coding strategy MCSX and is done for LTE system
It disturbs and noise ratio SINR；Delta is the surplus of the corresponding target demodulation SINR of MCSX；Alpha is the path loss compensation of cell configuration
The factor；DeltaTPC is the compensation rate of Msg3 power control results.
9. method as claimed in claim 6, which is characterized in that it is described according to NI level calculations base station in up channel
Initial reception power, including：
When the up channel is physical uplink control channel PUCCH, the initial calculation formula for receiving power is：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-
10log10(AntNum)+DelAntNum
Wherein, P0_NominalPUCCH is the initial reception power；SINRPUCCHTarget demodulation signal for PUCCH and interference
With noise ratio SINR；NIStaVal is bandwidth of cell NI horizontal；P0_UE_PUCCH is terminal power offset；DeltaTPC is
The compensation rate of Msg3 power control results；AntNum is uplink receiving antenna number；DelAntNum is the conservative amount of antenna gain.
10. method as claimed in claim 6, which is characterized in that it is described according to NI level calculations base station in up channel
Initial reception power, including：
When the up channel is Physical Random Access Channel PRACH, calculating the initial formula for receiving power is：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-
10log10(AntNum)+DelAntNum
Wherein, preambleInitialReceivedTargetPower is the initial reception power；SINRPRACHFor PRACH
Detection threshold；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number.
11. a kind of device of adaptive adjustment ascending power parameter, which is characterized in that including：
Statistical module, it is horizontal for counting the noise jamming NI in bandwidth of cell in predetermined period；
Identification module, the interference scene situation of change for identifying the cell according to the NI levels；
Module is adjusted, for being adjusted to the ascending power parameter of base station according to the interference scene situation of change.
12. device as claimed in claim 11, which is characterized in that the NI levels of the statistical module counts are cell idle NI
The average value of average value, busy NI per RB per RB, the NI average values in a measurement period, busy NI maximum values or one
Any one of NI maximum values in measurement period.
13. device as claimed in claim 11, which is characterized in that the identification module is specifically used for：
Obtain the difference of the NI levels and history NI levels；
When the difference is located in pre-set interval, then judge that interference level does not change；
When the difference is less than the minimum value of the pre-set interval, then judge that the interference level becomes smaller；
When the difference is more than the maximum value of the pre-set interval, then judge that the interference level becomes larger.
14. device as claimed in claim 13, which is characterized in that the adjustment module is specifically used for：
When the interference level becomes larger or the interference level becomes smaller and when the number that continuously becomes smaller is more than predetermined threshold value, according to
Preset step value is adjusted the ascending power parameter according to the NI levels.
15. device as claimed in claim 13, which is characterized in that the adjustment module is specifically used for：
Obtain the ascending power parameter of the ascending power parameter after adjustment and base station current-configuration；
Judge the difference and predetermined threshold value of the ascending power parameter after the adjustment and the ascending power parameter of the current-configuration
Size, and when the difference be more than predetermined threshold value when, then the ascending power parameter of base station is adjusted.
16. the device as described in claims 14 or 15, which is characterized in that the adjustment module includes：
Computing unit is used for the initial reception power in up channel according to NI level calculations base station；
Determination unit, the size for initially receiving power as defined in the initial reception power and channel transmission protocols according to calculating
Determine the initial reception power after the adjustment of base station, the initial reception power is the ascending power parameter.
17. device as claimed in claim 16, which is characterized in that the determination unit is specifically used for：
If the initial power that receives calculated is less than the defined initial minimum value for receiving power as defined in channel transmission protocols, adjust
Initial reception power after whole is the minimum value；
If the initial power that receives calculated is more than the defined initial maximum value for receiving power as defined in channel transmission protocols, adjust
Initial reception power after whole is the maximum value；
If the initial reception power calculated is more than the minimum value and is less than the maximum value, the initial reception work(after adjustment
Rate is the initial reception power calculated.
18. device as claimed in claim 16, which is characterized in that the computing unit is specifically used for：
When the up channel is Physical Uplink Shared Channel PUSCH, calculating the initial formula for receiving power is：
P0_NominalPUSCH=Pcmax-alpha*PL-10log10 (N)-deltaTPC-
P0_UE_PUSCH；Wherein,
PL=Pcmax -10log10 (N)-NIStaVal+10log10 (AntNum)-DelAntNum -
(SinrMCSX+delta)
Wherein, P0_NominalPUSCH is the initial reception power；Pcmax is terminal uplink maximum transmission power；N is work(
Control the number of target resource block；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number；DelAntNum
For the conservative amount of antenna gain；SinrMCSXIt using modulation target demodulation signal corresponding with coding strategy MCSX and is done for LTE system
It disturbs and noise ratio SINR；Delta is the surplus of the corresponding target demodulation SINR of MCSX；Alpha is the path loss compensation of cell configuration
The factor；DeltaTPC is the compensation rate of Msg3 power control results.
19. device as claimed in claim 16, which is characterized in that the computing unit is specifically used for：
When the up channel is physical uplink control channel PUCCH, the initial calculation formula for receiving power is：
P0_NominalPUCCH=SINRPUCCH+NIStaVal-P0_UE_PUCCH-deltaTPC-
10log10(AntNum)+DelAntNum
Wherein, P0_NominalPUCCH is the initial reception power；SINRPUCCHTarget demodulation signal for PUCCH and interference
With noise ratio SINR；NIStaVal is bandwidth of cell NI horizontal；P0_UE_PUCCH is terminal power offset；DeltaTPC is
The compensation rate of Msg3 power control results；AntNum is uplink receiving antenna number；DelAntNum is the conservative amount of antenna gain.
20. device as claimed in claim 16, which is characterized in that the computing unit is specifically used for：
When the up channel is Physical Random Access Channel PRACH, calculating the initial formula for receiving power is：
PreambleInitialReceivedTargetPower=SINRPRACH+NIStaVal-
10log10(AntNum)+DelAntNum
Wherein, preambleInitialReceivedTargetPower is the initial reception power；SINRPRACHFor PRACH
Detection threshold；NIStaVal is bandwidth of cell NI horizontal；AntNum is uplink receiving antenna number.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064255.8A CN108401282A (en) | 2017-02-04 | 2017-02-04 | A kind of method and device of adaptive adjustment ascending power parameter |
| PCT/CN2017/119980 WO2018141189A1 (en) | 2017-02-04 | 2017-12-29 | Method and device for self-adaptively adjusting uplink power parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064255.8A CN108401282A (en) | 2017-02-04 | 2017-02-04 | A kind of method and device of adaptive adjustment ascending power parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108401282A true CN108401282A (en) | 2018-08-14 |
Family
ID=63039287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710064255.8A Withdrawn CN108401282A (en) | 2017-02-04 | 2017-02-04 | A kind of method and device of adaptive adjustment ascending power parameter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108401282A (en) |
| WO (1) | WO2018141189A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996332A (en) * | 2019-12-25 | 2020-04-10 | 公安部第一研究所 | Coverage self-adaptive adjusting method based on interference |
| WO2022094848A1 (en) * | 2020-11-05 | 2022-05-12 | 海能达通信股份有限公司 | Anti-interference method, apparatus and system for communication network |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512894A (en) * | 2006-08-30 | 2009-08-19 | 摩托罗拉公司 | System and method for determining a carrier to interference-noise ratio |
| EP2219302A1 (en) * | 2007-12-03 | 2010-08-18 | Fujitsu Limited | Method for uplink transmission-power control, communication terminal apparatus, base station device, and mobile communication system |
| CN102143568A (en) * | 2010-11-26 | 2011-08-03 | 华为技术有限公司 | Power control method and base station |
| CN102687415A (en) * | 2009-11-10 | 2012-09-19 | 英特尔公司 | Techniques to control uplink power |
| CN103716890A (en) * | 2013-12-16 | 2014-04-09 | 中国移动通信集团江苏有限公司 | Uplink interference compensation method and device |
| CN104812042A (en) * | 2014-01-28 | 2015-07-29 | 上海贝尔股份有限公司 | Method for controlling transmission power |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741437B (en) * | 2008-11-19 | 2013-05-22 | 中国移动通信集团公司 | Uplink power control method, system and equipment |
| CN104254121B (en) * | 2013-06-28 | 2018-05-29 | 电信科学技术研究院 | A kind of PUSCH Poewr control methods and device |
| CN105722200B (en) * | 2014-12-02 | 2020-08-11 | 索尼公司 | Electronic device and wireless communication method in wireless communication system |
-
2017
- 2017-02-04 CN CN201710064255.8A patent/CN108401282A/en not_active Withdrawn
- 2017-12-29 WO PCT/CN2017/119980 patent/WO2018141189A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512894A (en) * | 2006-08-30 | 2009-08-19 | 摩托罗拉公司 | System and method for determining a carrier to interference-noise ratio |
| EP2219302A1 (en) * | 2007-12-03 | 2010-08-18 | Fujitsu Limited | Method for uplink transmission-power control, communication terminal apparatus, base station device, and mobile communication system |
| CN102687415A (en) * | 2009-11-10 | 2012-09-19 | 英特尔公司 | Techniques to control uplink power |
| CN102143568A (en) * | 2010-11-26 | 2011-08-03 | 华为技术有限公司 | Power control method and base station |
| CN103716890A (en) * | 2013-12-16 | 2014-04-09 | 中国移动通信集团江苏有限公司 | Uplink interference compensation method and device |
| CN104812042A (en) * | 2014-01-28 | 2015-07-29 | 上海贝尔股份有限公司 | Method for controlling transmission power |
Non-Patent Citations (1)
| Title |
|---|
| PANTECH: "《3GPP TSG-RAN WG2 Meeting #83 R2-132504》", 23 August 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996332A (en) * | 2019-12-25 | 2020-04-10 | 公安部第一研究所 | Coverage self-adaptive adjusting method based on interference |
| WO2022094848A1 (en) * | 2020-11-05 | 2022-05-12 | 海能达通信股份有限公司 | Anti-interference method, apparatus and system for communication network |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018141189A1 (en) | 2018-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11166245B2 (en) | Method of efficiently reporting user equipment transmission power and apparatus thereof | |
| CN107889209B (en) | Power control method and terminal equipment | |
| EP2945451B1 (en) | Interference reduction in a communication network by scheduling and link adaptation | |
| CN111436105A (en) | Power control method and device | |
| EP2882236A1 (en) | Uplink Power Control for Power Limited Terminals | |
| EP3048752B1 (en) | Method and apparatus for management of frequency-division-duplex and time-division-duplex carrier aggregation | |
| US9473371B2 (en) | Method and server for dynamically determining a reference signal (RS) power boost level | |
| US9961644B2 (en) | Fast fading power restriction | |
| CN101873603A (en) | Method and system for adjusting base station coverage | |
| CN108401282A (en) | A kind of method and device of adaptive adjustment ascending power parameter | |
| CN105992326B (en) | Poewr control method and device | |
| EP2564641B1 (en) | Method and arrangement for load sharing power control | |
| US11647497B2 (en) | Uplink scheduling based on upper and lower SNR targets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180814 |