CN108377461A - A kind of Poewr control method and base station - Google Patents
A kind of Poewr control method and base station Download PDFInfo
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- CN108377461A CN108377461A CN201610978820.7A CN201610978820A CN108377461A CN 108377461 A CN108377461 A CN 108377461A CN 201610978820 A CN201610978820 A CN 201610978820A CN 108377461 A CN108377461 A CN 108377461A
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- terminal equipment
- target terminal
- base station
- adjustment mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- 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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of Poewr control method and base station, the method includes：Get the relative position residing for target terminal equipment, wherein the relative position is used to characterize the relative position of the target terminal equipment and at least one base station；If the relative position residing for the target terminal equipment characterizes in the first preset range that the target terminal equipment is located among the base station and adjacent base station, the adjustment mode that the ascending power for the target terminal equipment is then determined based on the signal quality parameter of the target terminal equipment, determines to obtain the corresponding ascending power of the target terminal equipment based on the adjustment mode.
Description
Technical field
The present invention relates in the communications field power control techniques more particularly to a kind of Poewr control method and base station.
Background technology
In LTE system, when terminal device is moved to the edge of cell, base station will notify terminal device to promote transmission power
Come compensate path loss under high ferro scene, in the prior art, typically directly to the calculating parameter of power control carry out power
It calculates, still, ascending power can not be adjusted in conjunction with high ferro scene, therefore can not ensure uplink receiving performance, shadow
Ring user experience.
Invention content
It is a primary object of the present invention to propose a kind of Poewr control method and base station, it is intended to which solution exists in the prior art
The above problem.
To achieve the above object, a kind of Poewr control method provided by the invention, the method includes：
Get the relative position residing for target terminal equipment, wherein the relative position is whole for characterizing the target
The relative position of end equipment and at least one base station；
If the relative position residing for the target terminal equipment, which characterizes the target terminal equipment, is located at the base station and phase
In the first preset range among adjacent base station, is then determined based on the signal quality parameter of the target terminal equipment and be directed to the mesh
The adjustment mode for marking the ascending power of terminal device determines to obtain the target terminal equipment corresponding based on the adjustment mode
Ascending power；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, the first adjustment side
Formula is adjusted by the calculating parameter to ascending power for characterizing and uplink is calculated based on the calculating parameter after adjustment
The mode of power；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter to be calculated
The mode of ascending power.
A kind of base station provided by the invention, the base station include：
Position acquisition unit, for getting the relative position residing for target terminal equipment, wherein the relative position is used
In the relative position for characterizing the target terminal equipment and at least one base station；
Power control unit, if characterizing the target terminal equipment for the relative position residing for the target terminal equipment
In the first preset range among the base station and adjacent base station, then the signal quality based on the target terminal equipment is joined
Number determines the adjustment mode of the ascending power for the target terminal equipment, determines to obtain the mesh based on the adjustment mode
Mark the corresponding ascending power of terminal device；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, the first adjustment side
Formula is adjusted by the calculating parameter to ascending power for characterizing and uplink is calculated based on the calculating parameter after adjustment
The mode of power；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter to be calculated
The mode of ascending power.
A kind of Poewr control method proposed by the present invention and base station, it will be able to the opposite position being presently in based on terminal device
It sets to determine the adjustment mode to its ascending power, it, can be to calculating parameter therein when using the first adjustment mode
It is adjusted to obtain ascending power, uses and then keep initial calculation parameter constant to obtain uplink when second adjustment mode
The mode of power.In this way, just combining the location of terminal device, to determine the scheme of power adjustment, it can ensure terminal
More suitable transmission power is remained, to ensure the ascending performance of terminal device.
Description of the drawings
Fig. 1 is Poewr control method flow diagram of the embodiment of the present invention；
Fig. 2 is that the embodiment of the present invention handles schematic diagram of a scenario one；
Fig. 3 is that the embodiment of the present invention handles schematic diagram of a scenario two；
Fig. 4-1 is Reference Signal Received Power (RSRP, Reference Signal Receiving Power) and voice
Relationship between quality schematic diagram；
Fig. 4-2 is RSRP and transmission power relation schematic diagram；
Fig. 5-1 is the RSRP jitter curves and transmission power curve synoptic diagram between two base stations；
Fig. 5-2 is RSRP and its shake absolute value curve synoptic diagram；
Fig. 6 is RSRP and BLER relation schematic diagrams；
Fig. 7 is that base station of the embodiment of the present invention forms structural schematic diagram.
Specific implementation mode
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one,
An embodiment of the present invention provides a kind of Poewr control methods, are applied to base station, as shown in Figure 1, including：
Step 101：Get the relative position residing for target terminal equipment, wherein the relative position is for characterizing institute
State the relative position of target terminal equipment and at least one base station；
Step 102：If the relative position residing for the target terminal equipment characterizes the target terminal equipment positioned at described
In the first preset range among base station and adjacent base station, then needle is determined based on the signal quality parameter of the target terminal equipment
To the adjustment mode of the ascending power of the target terminal equipment, determines to obtain the target terminal based on the adjustment mode and set
Standby corresponding ascending power；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, the first adjustment side
Formula is adjusted by the calculating parameter to ascending power for characterizing and uplink is calculated based on the calculating parameter after adjustment
The mode of power；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter to be calculated
The mode of ascending power.
It is pointed out here that at least one terminal device that above-mentioned target terminal equipment is serviced by the base station
In one；Or be further understood that, the target terminal equipment is a terminal device of access base station.
Wherein, the base station can be specially dedicated for providing the base station of service for the terminal device of high-speed mobile, this
Class base station for the lower terminal device of movement speed compared with providing the base station in the general network of service, described in the present embodiment
Base station construction mode, network parameter configuration, there are some differences for base station in planning index and general network, do not carrying out here
It repeats.
The relative position described above got residing for target terminal equipment, including：
When the movement speed of the target terminal equipment is more than First Speed threshold value, the target terminal equipment is obtained
Residing relative position；
When the movement speed of the mobile terminal of the target terminal equipment is less than second speed threshold value, determination is directed to
The adjustment mode of the ascending power of the target terminal equipment is second adjustment mode, is calculated based on the second adjustment mode
To the corresponding ascending power of the target terminal equipment；
Wherein, the First Speed threshold value and second speed threshold value is identical or the First Speed door
Limit value is more than the second speed threshold value.
That is, the present embodiment gated the movement speed of target terminal device to be screened, when target terminal is set
When standby movement speed is not up to high-speed mobile, second adjustment mode may be used and carry out power control；Work as target terminal
When the movement speed of equipment reaches high-speed mobile, can in a manner of selection operation the first adjustment or second adjustment mode carry out
Power control.
Wherein, the First Speed threshold value can be identical as second speed threshold value, can also be different, when higher than first
When speed threshold value, determine that the target terminal equipment is the target terminal equipment of high-speed mobile.
The specific method for getting the relative position residing for target terminal equipment may include：It is set based on the target terminal
Standby frequency deviation value, and/or the movement speed based on the target terminal equipment, determine the phase residing for the target terminal equipment
To position.
Specifically, the frequency deviation value based on the target terminal equipment, determines residing for the target terminal equipment
Relative position, including：
The frequency deviation value for getting the target terminal equipment, when the absolute value of the frequency deviation value of the target terminal equipment is more than
When the first frequency deviation threshold value, the first preset range that the target terminal equipment is located among the base station and adjacent base station is determined
It is interior；When the absolute value of the frequency deviation value of the target terminal equipment is not more than the second frequency deviation threshold value, determine that the target terminal is set
It is standby to be located in corresponding second preset range in base station position；Wherein, the first frequency deviation threshold value and the second frequency deviation threshold
Be worth it is identical or, the first frequency deviation threshold value be more than the second frequency deviation threshold value.
Target terminal equipment is when far from base station, in the frequency deviation for the target terminal equipment that this base station measurement obtains
The case where absolute value that value can have frequency deviation becomes larger, when target terminal equipment is when close to base station, opposite base station measurement
The case where absolute value that the frequency deviation value of the target terminal equipment measured can have frequency deviation becomes smaller, for example, referring to Fig. 2, works as end
When end equipment is moved according to arrow direction, the absolute value for the Doppler shift value that the base station RRH1 measurements that accessed originally obtain
It can become larger；When terminal device is close to base station RRH2, the absolute value of Doppler shift value can become smaller.
It, can be with that is, when frequency deviation value is less than certain frequency deviation threshold value, such as when no more than the second frequency deviation threshold value
Think that target terminal equipment is located near the position of base station, can be close to the one of the base station in above-mentioned second preset range
A range, for example, when the diameter 1KM of the coverage area of base station, the second preset range can be the diameter of coverage area
For 0.5KM；
Correspondingly, when frequency deviation value is more than certain frequency deviation threshold value, for example, when more than the first frequency deviation threshold value, so that it may
To think in the first preset range that target terminal equipment is located between this base station and some adjacent base station, the first frequency deviation threshold value
The second frequency deviation threshold value, which can be more than, can also be equal to the second frequency deviation threshold value, without specifically limiting in the present embodiment, it is to be understood that
, when the first frequency deviation threshold value is equal to the second frequency deviation threshold value, corresponding first preset range and the second preset range phase
It is mutually complementary, i.e., the coverage area of base station is divided into two parts, the part close apart from base station as the second preset range, apart from base
Remote part stand as the first preset range；When first frequency deviation threshold value is more than the second frequency deviation threshold value, it is possible to which there are one
The case where subregion had both been not belonging to the first preset range or had been not belonging to the second preset range, when terminal device is in this subregion
When, can be using second adjustment mode.
Further, the movement speed based on the target terminal equipment, determines residing for the target terminal equipment
Relative position, including：
Get the distance between itself and adjacent base station；Movement speed based on the target terminal equipment is calculated
The target terminal equipment is moved to duration required in itself the first preset range between adjacent base station and opens timing
Device；When the timing of the timer reaches the duration, determine that the target terminal equipment is located at the base station and adjacent base
It stands in the first intermediate preset range, otherwise, the target terminal equipment is located at the corresponding second default model in base station position
In enclosing.
Wherein, it is described itself can be got by core net by the base station the distance between with adjacent base station it is each
The distance between itself and each adjacent base station is calculated in geographical location where a base station；
Further, target neighboring base stations are determined according to the moving direction of the target terminal equipment, finally determines itself
The distance between the adjacent base station；When detecting that target terminal equipment is linked into base station, determine that the target terminal is set
The standby coverage area for entering base station；The movement speed for getting the target terminal equipment, based on the target terminal equipment
Movement speed and the target terminal equipment are moved to the distance of the first preset range from current location, and the mesh is calculated
Mark terminal device is moved to the duration of the marginal position of first preset range；Timer is opened based on the duration, when the meter
When device timing be equal to the duration when, determine that the target terminal equipment is located in first preset range.
Further, it is determined for the target terminal equipment based on the signal quality parameter of the target terminal equipment
The adjustment mode of ascending power may include：
When the signal quality parameter based on the target terminal equipment determine the signal quality of the target terminal equipment compared with
When poor, determine that the adjustment mode for the ascending power of the target terminal equipment is the first adjustment mode, with by least right
The initial target access power and path-loss factor of ascending power are adjusted and based on the initial target accesses after adjustment
Ascending power is calculated in power and path-loss factor；
When the signal quality parameter based on the target terminal equipment determine the signal quality of the target terminal equipment compared with
When good, determine that the adjustment mode for the ascending power of the target terminal equipment is second adjustment mode.
Wherein it is determined that the preferable or poor mode of the signal quality of the target terminal equipment can be, according to described
The concrete numerical value of signal quality parameter is judged；
The signal quality parameter may include at least one of：Reference Signal Received Power, signal-to-noise ratio, reference signal
Power and uplink bottom is received to make an uproar the difference of lifting value；
Correspondingly, the method can specifically include：When the Reference Signal Received Power is more than the first power threshold
When, determine that the signal quality of the target terminal equipment is preferable；When the Reference Signal Received Power is not more than the second power door
When limit value, determine that the signal quality of the target terminal equipment is poor；Wherein, first power threshold and second work(
Rate threshold value is identical or first power threshold is higher than second power threshold；Wherein, RSRP can be target
Terminal device active reporting may be the parameter of base station side active obtaining；When the second power threshold and the first power threshold
When different, when RSRP is between the second power threshold and the first power threshold, it may be determined that target is whole
The signal quality of end equipment is medium, correspondingly, being also to use second adjustment mode at this time；
And/or
When the signal-to-noise ratio is more than the first threshold value, determine that the signal quality of the target terminal equipment is preferable；Work as institute
When stating Reference Signal Received Power no more than the second threshold value, determine that the signal quality of the target terminal equipment is poor；Wherein,
First threshold value is identical as second threshold value or first threshold value is higher than second threshold value.In addition,
When the second threshold value and the first threshold value difference, signal-to-noise ratio is between the second threshold value and the first threshold value, can
Signal quality to determine target terminal equipment is medium, correspondingly, being also to use second adjustment mode at this time.
And/or
When Reference Signal Received Power and uplink bottom make an uproar lifting value difference be more than the first quality threshold when, determine the mesh
The signal quality for marking terminal device is preferable；When the Reference Signal Received Power and uplink bottom make an uproar lifting value difference be not more than second
When quality threshold, determine that the signal quality of the target terminal equipment is poor；Wherein, first quality threshold with it is described
Second quality threshold is identical or first quality threshold is higher than second quality threshold.In addition, when the second matter
When measuring threshold value and the first quality threshold difference, the Reference Signal Received Power and uplink bottom make an uproar lifting value difference at
Between the second quality threshold and the first quality threshold, it may be determined that the signal quality of target terminal equipment is medium, phase
It answers, is also to use second adjustment mode at this time.
It needs further exist for illustrating, initial target access is adjusted in above-mentioned processing scene, described in the first adjustment mode
Power and adjusts path fissipation factor are to increase by two values；Each specific increased size of value can be real according to
Border situation is configured, for example, can increase separately initial target access power and path-loss factor corresponding default
Value；Or it is chosen according to the movement speed of target terminal equipment and chooses adjusted value respectively to adjust initial target access work(
Rate and path-loss factor；Can according to the rate of descent of the signal quality parameter of target terminal equipment it is initial to determine
Target access power and path-loss factor increased should be worth respectively.Wherein, described chosen according to movement speed adjusts
Value preset table can be chosen according to；Can be based on signal quality per second according to the rate of descent of signal quality parameter
The numerical value that parameter (for example, RSRP) declines, corresponding adjustment is chosen based on the rate of descent respectively from preset correspondence
Value is to adjust the corresponding calculating parameter of target terminal equipment.
The flow of the present embodiment is specific as follows：First, for the user newly accessed, base station configures initial uplink power for base station
Calculating parameter, it is equivalent to have specifically included initial target access power P0, path-loss factor Alpha, and monitors active user
Movement speed and uplink signal Doppler shift situation：
When movement speed is more than Thspeed-high：Illustrate that train has been enter into high-speed moving state, cell power at this time
Control parameter pattern configurations be high-speed mode, and monitor terminal uplink signal Doppler shift situation (or terminal movement
Position)：
When the absolute value of terminal uplink signal Doppler shift is higher than Thdop-high, illustrate that the position of user at this time connects
Be bordering on two pole centre positions (in practice, can also be judged, such as using the time：Base station side stores adjacent pole in advance
Physics spacing, according to the movement speed of terminal, required time T when estimating soon close to pole centre position, at that time indirectly
When nearly T, it is believed that user's is closely located to two pole centre positions；Or base station side is when counting the average service of current RRU
Between T, when the practical residence time of user soon close to T when, it is believed that user i.e. will be close to two pole centre positions), for example,
Referring to Fig. 3, target terminal equipment is in train, and train generates movement according to moving direction shown in figure at this time, with movement
At this time terminal apart from base station distance farther out and the incidence angle of base station signal becomes smaller, the RSRP and up/down walking along the street that terminal receives
The shake of diameter loss more acutely (when RSRP is less than -103dBm, RSRP shakes are higher than 10dB) will answer rapid uplift to send out at this time
Power is penetrated, and maintains certain transmission power level, allows transmission power not change with the shake of RSRP as possible, maintains terminal
Uplink receiving performance, base station will monitor terminal RSRP and uplink bottom and make an uproar lifting value IoT situations：
When (RSRP-IoT) is less than ThRSRP-low values, re-matching P0, Alpha are equivalent, fast lifting ascending power so that on
Row performance Fast Convergent；
When (RSRP-IoT) is persistently higher than ThRSRP-high values, P0, Alpha equivalence revert to initial setting up, gradually reduce
Or lifting power.
When the Doppler shift absolute value of uplink signal is less than Thdop-low, illustrate at this time user soon close to pole or
Just start (in practice, using the time to judge, such as far from pole：Base station side is stored in advance between the physics of adjacent pole
Away from according to the movement speed of terminal, required time T when estimating soon close to pole centre position is much smaller than T when the time
When, it is believed that user's is closely located to pole；Or base station side counts the average service time T of current RRU, when the reality of user is stayed
When the time being stayed to be much smaller than T, it is believed that user is close to pole position), terminal is larger compared with close and incidence angle apart from base station at this time, terminal
RSRP higher and relatively stablize, at this time power use normal general mode；
When movement speed is less than Thspeed-low：Cell power control parameter pattern recovery is normal mode.
Use of two kinds of calculating parameters in actually carrying out ascending power calculating about above-mentioned offer may refer to following
Table defines different uplink power control algorithms for different physical uplink channel and signal：
By taking LTE physical uplink Traffic Channels PUSCH as an example, above-mentioned formula includes mainly that uplink PUSCH occupies RB numbers
MPUSCH, initial target receive power P 0-PUSCH, path-loss factor α (j), MCS Dynamic gene ΔTFAnd closed power control
Adjustment amount f (i) processed.
Wherein, P0-PUSCH by cell level P0-Nominal-PUSCH and UE ranks common group of P0-UE-PUSCH
At usual network side is according to cell uplink disturbed condition, and (P0-Nominal-PUSCH, SIB2 are wide for 0 value of setting cell-level initial p
Broadcast message) and UE rank P0 values (P0-UE-PUSCH, RRC reallocation message), UE is according to current circuit loss situation, in conjunction with path damage
Consumption factor-alpha (j) and P0 values estimate uplink Initial Trans；Network side is dispatched according to uplink demodulation situation by MAC
Signaling carries out power closed loop adjustment (f (i), MACTPC dispatch).
For the difference of high-speed mode, general mode, it is described as follows：High-speed mode：Base station is needed according to (RSRP- uplinks
Make an uproar lifting IoT at bottom) rapid uplift is carried out to power；When (make an uproar lifting IoT at RSRP- uplinks bottom) is persistently more than thresholding, slowly drop
Low transmitting power；General mode：Existing uplink power control algorithm is continued to use in base station, and power lifting is lifted or reduced with a fixed step size.
Relationship and RSRP between the terminal device uplink reflection power provided in the prior art and RSRP and voice matter
Relationship between amount may refer to Fig. 4-1 and Fig. 4-2；After the present embodiment, it is shown referring to Fig. 5-1 and Fig. 5-2
The schematic diagram that RSRP shakes are reduced by the adjustment of transmission power, by it can be seen from the figure that, if when target terminal equipment
When intermediate region in two base stations, larger RSRP shakes are will produce, it is at this time that the transmission power of target terminal equipment is fast
Speed is promoted, and can be reduced RSRP and be shaken the influence brought.
The setting method that thresholding ThRSRP-low and ThRSRP-high is judged about RRSP, provides specific embodiment here：
Show net high ferro seine test result from Fig. 6 to can be seen that when RSRP is less than -106dBm, it is fast that uplink just passes BLER
Speed is lifted to 10% or more, and when RSRP is higher than -96dBm, uplink just passes BLER and is more steadily maintained at 10% or less.Cause
This, can set ThRSRP-high to -96dBm, and ThRSRP-low is set as -106dBm.
As it can be seen that by using said program, it will be able to which the relative position that is presently in based on terminal device is determined to it
The adjustment mode of ascending power can be adjusted calculating parameter therein when using the first adjustment mode to obtain
To ascending power, uses and then keep initial calculation parameter constant in a manner of obtaining ascending power when second adjustment mode.
In this way, just combining the location of terminal device, to determine the scheme of power adjustment, it can ensure that terminal remains more
Suitable transmission power, to ensure the ascending performance of terminal device.
Embodiment two,
An embodiment of the present invention provides a kind of base stations, as shown in fig. 7, comprises：
Position acquisition unit 71, for getting the relative position residing for target terminal equipment, wherein the relative position
Relative position for characterizing the target terminal equipment and at least one base station；
Power control unit 72 is set if characterizing the target terminal for the relative position residing for the target terminal equipment
In standby the first preset range among the base station and adjacent base station, then the signal quality based on the target terminal equipment
Parameter determines the adjustment mode of the ascending power for the target terminal equipment, determines to obtain based on the adjustment mode described
The corresponding ascending power of target terminal equipment；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, the first adjustment side
Formula is adjusted by the calculating parameter to ascending power for characterizing and uplink is calculated based on the calculating parameter after adjustment
The mode of power；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter to be calculated
The mode of ascending power.
It is pointed out here that at least one terminal device that above-mentioned target terminal equipment is serviced by the base station
In one；Or be further understood that, the target terminal equipment is a terminal device of access base station.
Wherein, the base station can be specially dedicated for providing the base station of service for the terminal device of high-speed mobile, this
Class base station for the lower terminal device of movement speed compared with providing the base station in the general network of service, described in the present embodiment
Base station construction mode, network parameter configuration, there are some differences for base station in planning index and general network, do not carrying out here
It repeats.
The base station further includes：
Speed acquiring unit 73 is obtained when the movement speed of the target terminal equipment is more than First Speed threshold value
Relative position residing for the target terminal equipment；When the movement speed of the mobile terminal of the target terminal equipment is less than
When two speed threshold values, determine that the adjustment mode for the ascending power of the target terminal equipment is second adjustment mode, base
The corresponding ascending power of the target terminal equipment is calculated in the second adjustment mode；
Wherein, the First Speed threshold value and second speed threshold value is identical or the First Speed door
Limit value is more than the second speed threshold value.
That is, the present embodiment gated the movement speed of target terminal device to be screened, when target terminal is set
When standby movement speed is not up to high-speed mobile, second adjustment mode may be used and carry out power control；Work as target terminal
When the movement speed of equipment reaches high-speed mobile, can in a manner of selection operation the first adjustment or second adjustment mode carry out
Power control.
Wherein, the First Speed threshold value can be identical as second speed threshold value, can also be different, when higher than first
When speed threshold value, determine that the target terminal equipment is the target terminal equipment of high-speed mobile.
The specific method for getting the relative position residing for target terminal equipment may include：It is set based on the target terminal
Standby frequency deviation value, and/or the movement speed based on the target terminal equipment, determine the phase residing for the target terminal equipment
To position.
Specifically, the power control unit, the frequency deviation value for getting the target terminal equipment, when the mesh
When marking the absolute value of the frequency deviation value of terminal device more than the first frequency deviation threshold value, determine that the target terminal equipment is located at the base station
In the first preset range among adjacent base station；When the absolute value of the frequency deviation value of the target terminal equipment is not more than the second frequency
When inclined threshold value, determine that the target terminal equipment is located in corresponding second preset range in base station position；Wherein, described
One frequency deviation threshold value it is identical as the second frequency deviation threshold value or, the first frequency deviation threshold value be more than the second frequency deviation threshold value.
Target terminal equipment is when far from base station, in the frequency deviation for the target terminal equipment that this base station measurement obtains
The case where absolute value that value can have frequency deviation becomes larger, when target terminal equipment is when close to base station, opposite base station measurement
The case where absolute value that the frequency deviation value of the target terminal equipment measured can have frequency deviation becomes smaller, for example, referring to Fig. 2, works as end
When end equipment is moved according to arrow direction, the absolute value for the Doppler shift value that the base station RRH1 measurements that accessed originally obtain
It can become larger；When terminal device is close to base station RRH2, the absolute value of Doppler shift value can become smaller.
It, can be with that is, when frequency deviation value is less than certain frequency deviation threshold value, such as when no more than the second frequency deviation threshold value
Think that target terminal equipment is located near the position of base station, can be close to the one of the base station in above-mentioned second preset range
A range, for example, when the diameter 1KM of the coverage area of base station, the second preset range can be the diameter of coverage area
For 0.5KM；
Correspondingly, when frequency deviation value is more than certain frequency deviation threshold value, for example, when more than the first frequency deviation threshold value, so that it may
To think in the first preset range that target terminal equipment is located between this base station and some adjacent base station, the first frequency deviation threshold value
The second frequency deviation threshold value, which can be more than, can also be equal to the second frequency deviation threshold value, without specifically limiting in the present embodiment, it is to be understood that
, when the first frequency deviation threshold value is equal to the second frequency deviation threshold value, corresponding first preset range and the second preset range phase
It is mutually complementary, i.e., the coverage area of base station is divided into two parts, the part close apart from base station as the second preset range, apart from base
Remote part stand as the first preset range；When first frequency deviation threshold value is more than the second frequency deviation threshold value, it is possible to which there are one
The case where subregion had both been not belonging to the first preset range or had been not belonging to the second preset range, when terminal device is in this subregion
When, can be using second adjustment mode.
Further, the power control unit, for getting the distance between itself and adjacent base station；Based on described
The movement speed of target terminal equipment is calculated the target terminal equipment and is moved to itself first between adjacent base station
Required duration and timer is opened in preset range；When the timing of the timer reaches the duration, the mesh is determined
Mark terminal device is located in the first preset range among the base station and adjacent base station, otherwise, target terminal equipment position
In in corresponding second preset range in base station position.
Wherein, it is described itself can be got by core net by the base station the distance between with adjacent base station it is each
The distance between itself and each adjacent base station is calculated in geographical location where a base station；
Further, target neighboring base stations are determined according to the moving direction of the target terminal equipment, finally determines itself
The distance between the adjacent base station；When detecting that target terminal equipment is linked into base station, determine that the target terminal is set
The standby coverage area for entering base station；The movement speed for getting the target terminal equipment, based on the target terminal equipment
Movement speed and the target terminal equipment are moved to the distance of the first preset range from current location, and the mesh is calculated
Mark terminal device is moved to the duration of the marginal position of first preset range；Timer is opened based on the duration, when the meter
When device timing be equal to the duration when, determine that the target terminal equipment is located in first preset range.
Further, the power control unit, it is true for working as the signal quality parameter based on the target terminal equipment
When the signal quality of the fixed target terminal equipment is poor, the adjustment side of the ascending power for the target terminal equipment is determined
Formula is the first adjustment mode, with by least being adjusted to the initial target access power and path-loss factor of ascending power
It is whole and based on after adjustment initial target access power and path-loss factor ascending power is calculated；
When the signal quality parameter based on the target terminal equipment determine the signal quality of the target terminal equipment compared with
When good, determine that the adjustment mode for the ascending power of the target terminal equipment is second adjustment mode.
Wherein it is determined that the preferable or poor mode of the signal quality of the target terminal equipment can be, according to described
The concrete numerical value of signal quality parameter is judged；
The signal quality parameter may include at least one of：Reference Signal Received Power, signal-to-noise ratio, reference signal
Power and uplink bottom is received to make an uproar the difference of lifting value；
Correspondingly, the method can specifically include：When the Reference Signal Received Power is more than the first power threshold
When, determine that the signal quality of the target terminal equipment is preferable；When the Reference Signal Received Power is not more than the second power door
When limit value, determine that the signal quality of the target terminal equipment is poor；Wherein, first power threshold and second work(
Rate threshold value is identical or first power threshold is higher than second power threshold；Wherein, RSRP can be target
Terminal device active reporting may be the parameter of base station side active obtaining；When the second power threshold and the first power threshold
When different, when RSRP is between the second power threshold and the first power threshold, it may be determined that target is whole
The signal quality of end equipment is medium, correspondingly, being also to use second adjustment mode at this time；
And/or
When the signal-to-noise ratio is more than the first threshold value, determine that the signal quality of the target terminal equipment is preferable；Work as institute
When stating Reference Signal Received Power no more than the second threshold value, determine that the signal quality of the target terminal equipment is poor；Wherein,
First threshold value is identical as second threshold value or first threshold value is higher than second threshold value.In addition,
When the second threshold value and the first threshold value difference, signal-to-noise ratio is between the second threshold value and the first threshold value, can
Signal quality to determine target terminal equipment is medium, correspondingly, being also to use second adjustment mode at this time.
And/or
When Reference Signal Received Power and uplink bottom make an uproar lifting value difference be more than the first quality threshold when, determine the mesh
The signal quality for marking terminal device is preferable；When the Reference Signal Received Power and uplink bottom make an uproar lifting value difference be not more than second
When quality threshold, determine that the signal quality of the target terminal equipment is poor；Wherein, first quality threshold with it is described
Second quality threshold is identical or first quality threshold is higher than second quality threshold.In addition, when the second matter
When measuring threshold value and the first quality threshold difference, the Reference Signal Received Power and uplink bottom make an uproar lifting value difference at
Between the second quality threshold and the first quality threshold, it may be determined that the signal quality of target terminal equipment is medium, phase
It answers, is also to use second adjustment mode at this time.
It needs further exist for illustrating, initial target access is adjusted in above-mentioned processing scene, described in the first adjustment mode
Power and adjusts path fissipation factor are to increase by two values；Each specific increased size of value can be real according to
Border situation is configured, for example, can increase separately initial target access power and path-loss factor corresponding default
Value；Or it is chosen according to the movement speed of target terminal equipment and chooses adjusted value respectively to adjust initial target access work(
Rate and path-loss factor；Can according to the rate of descent of the signal quality parameter of target terminal equipment it is initial to determine
Target access power and path-loss factor increased should be worth respectively.Wherein, described chosen according to movement speed adjusts
Value preset table can be chosen according to；Can be based on signal quality per second according to the rate of descent of signal quality parameter
The numerical value that parameter (for example, RSRP) declines, corresponding adjustment is chosen based on the rate of descent respectively from preset correspondence
Value is to adjust the corresponding calculating parameter of target terminal equipment.
The flow of the present embodiment is specific as follows：First, for the user newly accessed, base station configures initial uplink power for base station
Calculating parameter, it is equivalent to have specifically included initial target access power P0, path-loss factor Alpha, and monitors active user
Movement speed and uplink signal Doppler shift situation：
When movement speed is more than Thspeed-high：Illustrate that train has been enter into high-speed moving state, cell power at this time
Control parameter pattern configurations be high-speed mode, and monitor terminal uplink signal Doppler shift situation (or terminal movement
Position)：
When the absolute value of terminal uplink signal Doppler shift is higher than Thdop-high, illustrate that the position of user at this time connects
Be bordering on two pole centre positions (in practice, can also be judged, such as using the time：Base station side stores adjacent pole in advance
Physics spacing, according to the movement speed of terminal, required time T when estimating soon close to pole centre position, at that time indirectly
When nearly T, it is believed that user's is closely located to two pole centre positions；Or base station side is when counting the average service of current RRU
Between T, when the practical residence time of user soon close to T when, it is believed that user i.e. will be close to two pole centre positions), for example,
Referring to Fig. 3, target terminal equipment is in train, and train generates movement according to moving direction shown in figure at this time, with movement
At this time terminal apart from base station distance farther out and the incidence angle of base station signal becomes smaller, the RSRP and up/down walking along the street that terminal receives
The shake of diameter loss more acutely (when RSRP is less than -103dBm, RSRP shakes are higher than 10dB) will answer rapid uplift to send out at this time
Power is penetrated, and maintains certain transmission power level, allows transmission power not change with the shake of RSRP as possible, maintains terminal
Uplink receiving performance, base station will monitor terminal RSRP and uplink bottom and make an uproar lifting value IoT situations：
When (RSRP-IoT) is less than ThRSRP-low values, re-matching P0, Alpha are equivalent, fast lifting ascending power so that on
Row performance Fast Convergent；
When (RSRP-IoT) is persistently higher than ThRSRP-high values, P0, Alpha equivalence revert to initial setting up, gradually reduce
Or lifting power.
When the Doppler shift absolute value of uplink signal is less than Thdop-low, illustrate at this time user soon close to pole or
Just start (in practice, using the time to judge, such as far from pole：Base station side is stored in advance between the physics of adjacent pole
Away from according to the movement speed of terminal, required time T when estimating soon close to pole centre position is much smaller than T when the time
When, it is believed that user's is closely located to pole；Or base station side counts the average service time T of current RRU, when the reality of user is stayed
When the time being stayed to be much smaller than T, it is believed that user is close to pole position), terminal is larger compared with close and incidence angle apart from base station at this time, terminal
RSRP higher and relatively stablize, at this time power use normal general mode；
When movement speed is less than Thspeed-low：Cell power control parameter pattern recovery is normal mode.
Use of two kinds of calculating parameters in actually carrying out ascending power calculating about above-mentioned offer may refer to following
Table defines different uplink power control algorithms for different physical uplink channel and signal：
By taking LTE physical uplink Traffic Channels PUSCH as an example, above-mentioned formula includes mainly that uplink PUSCH occupies RB numbers
MPUSCH, initial target receive power P 0-PUSCH, path-loss factor α (j), MCS Dynamic gene ΔTFAnd closed power control
Adjustment amount f (i) processed.
Wherein, P0-PUSCH by cell level P0-Nominal-PUSCH and UE ranks common group of P0-UE-PUSCH
At usual network side is according to cell uplink disturbed condition, and (P0-Nominal-PUSCH, SIB2 are wide for 0 value of setting cell-level initial p
Broadcast message) and UE rank P0 values (P0-UE-PUSCH, RRC reallocation message), UE is according to current circuit loss situation, in conjunction with path damage
Consumption factor-alpha (j) and P0 values estimate uplink Initial Trans；Network side is dispatched according to uplink demodulation situation by MAC
Signaling carries out power closed loop adjustment (f (i), MACTPC dispatch).
For the difference of high-speed mode, general mode, it is described as follows：High-speed mode：Base station is needed according to (RSRP- uplinks
Make an uproar lifting IoT at bottom) rapid uplift is carried out to power；When (make an uproar lifting IoT at RSRP- uplinks bottom) is persistently more than thresholding, slowly drop
Low transmitting power；General mode：Existing uplink power control algorithm is continued to use in base station, and power lifting is lifted or reduced with a fixed step size.
As it can be seen that by using said program, it will be able to which the relative position that is presently in based on terminal device is determined to it
The adjustment mode of ascending power can be adjusted calculating parameter therein when using the first adjustment mode to obtain
To ascending power, uses and then keep initial calculation parameter constant in a manner of obtaining ascending power when second adjustment mode.
In this way, just combining the location of terminal device, to determine the scheme of power adjustment, it can ensure that terminal remains more
Suitable transmission power, to ensure the ascending performance of terminal device.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or base station including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or base station institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or base station.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer, clothes
Be engaged in device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of Poewr control method is applied to base station, which is characterized in that the method includes：
Get the relative position residing for target terminal equipment, wherein the relative position is set for characterizing the target terminal
The standby relative position at least one base station；
If the relative position residing for the target terminal equipment, which characterizes the target terminal equipment, is located at the base station and adjacent base
It stands in the first intermediate preset range, is then determined based on the signal quality parameter of the target terminal equipment whole for the target
The adjustment mode of the ascending power of end equipment determines to obtain the corresponding uplink of the target terminal equipment based on the adjustment mode
Power；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, and the first adjustment mode is used
It is adjusted by the calculating parameter to ascending power in characterization and ascending power is calculated based on the calculating parameter after adjustment
Mode；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter so that uplink is calculated
The mode of power.
2. according to the method described in claim 1, it is characterized in that, the opposite position got residing for target terminal equipment
It sets, further includes：
When the movement speed of the target terminal equipment is more than First Speed threshold value, obtain residing for the target terminal equipment
Relative position；
When the movement speed of the mobile terminal of the target terminal equipment is less than second speed threshold value, determine for described
The adjustment mode of the ascending power of target terminal equipment is second adjustment mode, and institute is calculated based on the second adjustment mode
State the corresponding ascending power of target terminal equipment；
Wherein, the First Speed threshold value and second speed threshold value is identical or the First Speed threshold value
More than the second speed threshold value.
3. according to the method described in claim 1, it is characterized in that, the signal quality ginseng based on the target terminal equipment
Number determines the adjustment mode of the ascending power for the target terminal equipment, including：
When the signal quality parameter based on the target terminal equipment determines that the signal quality of the target terminal equipment is poor,
Determine that the adjustment mode for the ascending power of the target terminal equipment is the first adjustment mode, with by least to uplink work(
The initial target access power and path-loss factor of rate be adjusted and based on the initial target access power after adjustment with
And ascending power is calculated in path-loss factor；
When the signal quality parameter based on the target terminal equipment determines that the signal quality of the target terminal equipment is preferable,
Determine that the adjustment mode for the ascending power of the target terminal equipment is second adjustment mode.
4. according to the method described in claim 3, it is characterized in that, the signal quality parameter may include it is following at least it
One：Reference Signal Received Power, signal-to-noise ratio, Reference Signal Received Power and uplink bottom are made an uproar the difference of lifting value；
Correspondingly, the method further includes：
When the Reference Signal Received Power is more than the first power threshold, the signal quality of the target terminal equipment is determined
Preferably；Otherwise, it determines the signal quality of the target terminal equipment is poor；
And/or
When the signal-to-noise ratio is more than the first threshold value, determine that the signal quality of the target terminal equipment is preferable；Otherwise, it determines
The signal quality of the target terminal equipment is poor；
And/or
When Reference Signal Received Power and uplink bottom make an uproar the difference of lifting value be more than the first quality threshold when, determine that the target is whole
The signal quality of end equipment is preferable；Otherwise, it determines the signal quality of the target terminal equipment is poor.
5. according to the method described in claim 1, it is characterized in that, the opposite position got residing for target terminal equipment
It sets, including：
Frequency deviation value based on the target terminal equipment, and/or the movement speed based on the target terminal equipment, determine institute
State the relative position residing for target terminal equipment.
6. according to the method described in claim 5, it is characterized in that, the frequency deviation value based on the target terminal equipment, really
Relative position residing for the fixed target terminal equipment, including：
The frequency deviation value for getting the target terminal equipment, when the absolute value of the frequency deviation value of the target terminal equipment is more than first
When frequency deviation threshold value, determine that the target terminal equipment is located in the first preset range among the base station and adjacent base station；When
When the absolute value of the frequency deviation value of the target terminal equipment is not more than the second frequency deviation threshold value, determine that the target terminal equipment is located at
In corresponding second preset range in base station position；Wherein, the first frequency deviation threshold value it is identical as the second frequency deviation threshold value,
Alternatively, the first frequency deviation threshold value is more than the second frequency deviation threshold value.
7. according to the method described in claim 5, it is characterized in that, the movement speed based on the target terminal equipment,
Determine the relative position residing for the target terminal equipment, including：
Get the distance between itself and adjacent base station；Movement speed based on the target terminal equipment is calculated described
Target terminal equipment is moved to duration required in itself the first preset range between adjacent base station and opens timer；When
When the timing of the timer reaches the duration, determine that the target terminal equipment is located among the base station and adjacent base station
The first preset range in, otherwise, the target terminal equipment is located in corresponding second preset range in base station position.
8. a kind of base station, which is characterized in that the base station includes：
Position acquisition unit, for getting the relative position residing for target terminal equipment, wherein the relative position is used for table
Levy the relative position of the target terminal equipment and at least one base station；
Power control unit is located at if characterizing the target terminal equipment for the relative position residing for the target terminal equipment
In the first preset range among the base station and adjacent base station, then the signal quality parameter based on the target terminal equipment is true
Surely it is directed to the adjustment mode of the ascending power of the target terminal equipment, determines to obtain the target end based on the adjustment mode
The corresponding ascending power of end equipment；
Wherein, the adjustment mode includes at least the first adjustment mode and second adjustment mode, and the first adjustment mode is used
It is adjusted by the calculating parameter to ascending power in characterization and ascending power is calculated based on the calculating parameter after adjustment
Mode；The calculating parameter that the second adjustment mode characterizes holding ascending power is initial calculation parameter so that uplink is calculated
The mode of power.
9. base station according to claim 8, which is characterized in that the base station further includes：
Speed acquiring unit, for when the movement speed of the target terminal equipment is more than First Speed threshold value, obtaining institute
State the relative position residing for target terminal equipment；
When the movement speed of the mobile terminal of the target terminal equipment is less than second speed threshold value, determine for described
The adjustment mode of the ascending power of target terminal equipment is second adjustment mode, and institute is calculated based on the second adjustment mode
State the corresponding ascending power of target terminal equipment；
Wherein, the First Speed threshold value and second speed threshold value is identical or the First Speed threshold value
More than the second speed threshold value.
10. base station according to claim 8, which is characterized in that the power control unit, for when based on the target
When the signal quality parameter of terminal device determines that the signal quality of the target terminal equipment is poor, determine whole for the target
The adjustment mode of the ascending power of end equipment is the first adjustment mode, with by least accessing work(to the initial target of ascending power
Rate and path-loss factor be adjusted and based on after adjustment initial target access power and path-loss factor calculate
Obtain ascending power；
When the signal quality parameter based on the target terminal equipment determines that the signal quality of the target terminal equipment is preferable,
Determine that the adjustment mode for the ascending power of the target terminal equipment is second adjustment mode.
11. base station according to claim 10, which is characterized in that the signal quality parameter may include it is following at least it
One：Reference Signal Received Power, signal-to-noise ratio, Reference Signal Received Power and uplink bottom are made an uproar the difference of lifting value；
Correspondingly, the power control unit, is used for when the Reference Signal Received Power is more than the first power threshold, really
The signal quality of the fixed target terminal equipment is preferable；Otherwise, it determines the signal quality of the target terminal equipment is poor；
And/or
When the signal-to-noise ratio is more than the first threshold value, determine that the signal quality of the target terminal equipment is preferable；Otherwise, it determines
The signal quality of the target terminal equipment is poor；
And/or
When Reference Signal Received Power and uplink bottom make an uproar the difference of lifting value be more than the first quality threshold when, determine that the target is whole
The signal quality of end equipment is preferable；Otherwise, it determines the signal quality of the target terminal equipment is poor.
12. base station according to claim 8, which is characterized in that the position acquisition unit, for whole based on the target
The frequency deviation value of end equipment, and/or movement speed based on the target terminal equipment, determine residing for the target terminal equipment
Relative position.
13. base station according to claim 12, which is characterized in that the position acquisition unit, for getting the mesh
The frequency deviation value for marking terminal device is determined when the absolute value of the frequency deviation value of the target terminal equipment is more than the first frequency deviation threshold value
The target terminal equipment is located in the first preset range among the base station and adjacent base station；When the target terminal equipment
Frequency deviation value absolute value be not more than the second frequency deviation threshold value when, determine the target terminal equipment be located at base station position correspond to
The second preset range in；Wherein, the first frequency deviation threshold value it is identical as the second frequency deviation threshold value or, it is described first frequency
Inclined threshold value is more than the second frequency deviation threshold value.
14. base station according to claim 12, which is characterized in that the position acquisition unit, for get itself with
The distance between adjacent base station；The target terminal equipment movement is calculated in movement speed based on the target terminal equipment
Required duration and timer is opened in itself the first preset range between adjacent base station；When the timing of the timer
When reaching the duration, the first preset range that the target terminal equipment is located among the base station and adjacent base station is determined
Interior, otherwise, the target terminal equipment is located in corresponding second preset range in base station position.
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| WO2022078205A1 (en) * | 2020-10-16 | 2022-04-21 | 大唐移动通信设备有限公司 | Power control method, network device, terminal, apparatus, and storage medium |
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