CN106604380A - Uplink transmission power control method and device - Google Patents
Uplink transmission power control method and device Download PDFInfo
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- CN106604380A CN106604380A CN201510670434.7A CN201510670434A CN106604380A CN 106604380 A CN106604380 A CN 106604380A CN 201510670434 A CN201510670434 A CN 201510670434A CN 106604380 A CN106604380 A CN 106604380A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an uplink transmission power control method, and the method comprises the following steps: A, filtering uplink measurement signal changes of a base station cell; B, adjusting the uplink transmission power of UE according to the quality of an uplink signal after filtering. The invention also discloses an uplink transmission power control device. The method and device carry out the filtering of the changes of the uplink measurement signal of the base station cell on the condition of mixed networking of a macro cell and a low-frequency cell with the same frequency when the uplink signal fluctuate sharply, adjust the uplink transmission power of the UE according to the quality of an uplink signal after filtering, avoid the abrupt changes of the uplink signal of a user, improve the uplink business experience of the user, and increase the uplink performance capacity of a heterogeneous network system.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of method for controlling uplink transmission power and
Device.
Background technology
UMTS (Universal Mobile Telecommunications System, UMTS)
It is one of global 3G standard that International Organization for Standardization 3GPP is formulated.Its main body includes CDMA (Code
Division Multiple Access, CDMA) access network and packetizing a series of skills such as core network
Art specification and interface protocol.
Inventor's discovery when the present invention is realized, in current UMTS heterogeneous networks uplink interference is frequently encountered
Problem, in the case of the macrocell and low power cell mixed networking of same frequency, due to there is uplink downlink not
Balance, the user for causing uneven area is larger to the uplink interference of cell base station.Especially it is moved through in user
In the case of the upward signal rapid fading occurred in journey, there are big ups and downs in such as Rayleigh fading, upward signal,
Iff the ascending power that user is adjusted according to upward signal change, the uplink service of user can be caused
Hydraulic performance decline.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of method for controlling uplink transmission power and device, to
Prior art is solved in the case of the macrocell and low power cell mixed networking of same frequency, because upward signal goes out
Show big ups and downs and cause the problem of the uplink service hydraulic performance decline of user.
To solve above-mentioned technical problem, the present invention provides a kind of method for controlling uplink transmission power, methods described
Comprise the following steps：
A, the out-hole run signal intensity to base station cell are filtered；
B, according to filtered quality of uplink signal to the upper of UE (User Equipment, user equipment)
Row transmit power is adjusted.
Further, step A includes：The out-hole run of low-power base station cell or macro base station cell is believed
Number change is filtered.
Further, in step A, using endless impulse response filter method to out-hole run signal
Change is filtered, and specifically includes：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnIt is value that the quality of uplink signal n moment filters；Fn-1It is to filter at the quality of uplink signal n-1 moment
Value；The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is n
The upward signal measured value at moment；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Further, in step B, including：According to filtered quality of uplink signal FnAccordingly
The transmission power parameter of adjustment UE, by RRC (Radio Resource Control, wireless heterogeneous networks
Agreement) space interface signaling by the transmission power parameter after adjustment be handed down to UE go adjust uplink transmission power；Institute
State transmission power parameter including E-DPCCH (E-DCH Dedicated Physical Control Channel,
E-DCH (Enhanced Dedicated Channel, Enhanced-DedicatedChannel) Dedicated Physical Control Channel)
Transmission power parameter betaec, E-DPDCH (E-DCH Dedicated Physical Data Channel, E-DCH
Dedicated Physical Data Channel) transmission power parameter betaedAnd/or DPDCH (Dedicated Physical Data
Channel, Dedicated Physical Data Channel) transmission power parameter betad；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is the value that the quality of uplink signal n moment filters；A, B, C be greater than or equal to 0 it is normal
Amount.
Further, step A includes：To macrocell and the out-hole run signal of low-power base station cell
Difference is filtered.
Further, in step A, using endless impulse response filter method to out-hole run signal
Change is filtered, and specifically includes：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that to be macrocell filter with the n moment of the difference of low-power base station cell out-hole run signal；
Fn-1The value that to be macrocell filter with the n-1 moment of the difference of low-power base station cell out-hole run signal；n
The time granularity differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is the n moment
Upward signal measured value；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Further, in step B, including：According to the quality of uplink signal F after differential filteringnIt is right
Should ground adjustment UE transmission power parameter, by RRC space interface signalings by the transmission power parameter after adjustment
It is handed down to UE to go to adjust uplink transmission power；The transmission power parameter includes the transmitting work(of E-DPCCH
Rate parameter betaec, E-DPDCH transmission power parameter betaedAnd/or the transmission power parameter beta of DPDCHd；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is that macrocell is filtered with the n moment of the difference of low-power base station cell out-hole run signal
Value；A, B, C are greater than or equal to 0 constant.
Further, step A includes：The out-hole run of low-power base station cell and macro base station cell is believed
Number change is filtered respectively.
Further, in step A, using endless impulse response filter method to out-hole run signal
Change is filtered, and specifically includes：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that the expression quality of uplink signal n moment filters, FnFor the measurement of n moment macro base stations cell uplink
Value F after signal filteringmnOr value F after n moment low-power base station cell out-hole run signal filteringssn；
Fn-1The value that the expression quality of uplink signal n-1 moment filters, Fn-1For the measurement of n-1 moment macro base stations cell uplink
Value F after signal filteringm(n-1)Or the value after n-1 moment low-power base station cell out-hole run signal filterings
Fs(n-1)；The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；Mn
It is the upward signal measured value at n moment；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Further, in step B, including：According to the upper of macro base station cell and low-power base station cell
Filtered difference F of row measurement signaldnThe transmission power parameter of UE is accordingly adjusted, is eated dishes without rice or wine by RRC
Transmission power parameter after adjustment is handed down to UE and goes to adjust uplink transmission power by signaling；The transmission power
Parameter includes the transmission power parameter beta of E-DPCCHec, E-DPDCH transmission power parameter betaedAnd/or
The transmission power parameter beta of DPDCHd；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fnd-A；
(βed)n=(βed)n-1+Fnd-B；
(βd)n=(βd)n-1+Fnd-C；
Fdn=Fmn-Fsn；
Wherein FdnBe n moment macro base station cells and low-power base station cell out-hole run signal filtering after
Difference；FmnIt is the filtered value of n moment macro base station cell uplink measurement signals；FsnIt is n moment low-power
Value after the out-hole run signal filtering of base station cell；A, B, C are greater than or equal to 0 constant.
Further, between step A and step B, also include：Judge the up letter of adjacent moment
Whether the absolute value of the difference of number quality filtered value reaches threshold value set in advance, if it is, going to step B；
Otherwise terminate.
Further, the out-hole run signal includes SIR (the Signal to Interference of up dedicated pilot
Ratio, signal-to-noise ratio), RSCP (Received Signal Code Power, received signal code power)
With up BER (Bit Error Rate, the bit error rate).
The present invention also provides a kind of uplink transmission power control device, and described device includes：
Filtration module, for being filtered to the out-hole run signal intensity of base station cell；
Power regulation module, for being entered to the uplink transmission power of UE according to filtered quality of uplink signal
Row adjustment.
Further, described device also includes judge module, for the quality of uplink signal of adjacent moment to be filtered
The absolute value of the difference of value is compared with threshold value set in advance, judges whether the uplink transmission power to UE
It is adjusted.
The present invention has the beneficial effect that：
The present invention in the case of macrocell and the low power cell mixed networking of same frequency, when upward signal occur it is acute
During strong fluctuation, the out-hole run signal intensity of base station cell is filtered, and according to filtered up letter
Number quality is adjusted to the uplink transmission power of UE, so as to avoid the upward signal acute variation of user,
The uplink service experience of user is improved, heterogeneous network system ascending performance capacity is increased.
Description of the drawings
Fig. 1 is a kind of system construction drawing of UMTS heterogeneous networks of the embodiment of the present invention；
Fig. 2 is a kind of flow chart of method for controlling uplink transmission power of the embodiment of the present invention；
Fig. 3 is a kind of structure chart of uplink transmission power control device of the embodiment of the present invention；
Specific embodiment
In order to solve prior art in the case of the macrocell and low power cell mixed networking of same frequency, due to upper
There are big ups and downs and causes the problem of the uplink service hydraulic performance decline of user in row signal, the invention provides one
Method for controlling uplink transmission power and device are planted, below in conjunction with accompanying drawing and embodiment, the present invention is entered to advance
One step is described in detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
The present invention is not limited.
All by taking a kind of system of UMTS heterogeneous networks as an example, this is the applied environment of following examples of the present invention
The structure chart of system as shown in figure 1, the system is using the macrocell with frequency and low power cell mixed networking,
Imbalance bands of the wherein UE in cell, the macrocell can be to RNC (Radio with low power cell
Network Controller, radio network controller) data are sent, RNC can send to UE and instruct.
Embodiment 1
When using system shown in Fig. 1, a kind of method for controlling uplink transmission power of the embodiment of the present invention is such as
Shown in Fig. 2, the method comprising the steps of：
Step s201, is filtered to the out-hole run signal intensity of base station cell.In the present embodiment, RNC
The out-hole run signal intensity of low-power base station cell is filtered, the out-hole run signal includes but do not limit
In SIR, RSCP and uplink error rate BER of up dedicated pilot, filtering mode adopts IIR (Infinite
Impulse Response, unlimited long impulse response) filtering method is filtered, and detailed process is：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnIt is value that the quality of uplink signal n moment filters；Fn-1It is value that the quality of uplink signal n-1 moment filters；
The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is the n moment
Upward signal measured value；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Value for k, under low speed Rayleigh rapid fading environment, filter factor k values can be with slightly larger, this
Sample can cause measurement result more accurate；Under high velocity environment, filter factor k values can with slightly smaller,
Measurement reflection speed can be lifted.When k is equal to 0, equivalent to wave filter transparent transmission signal, without filtration.
Step s202, judge the difference of the quality of uplink signal filter value of adjacent moment absolute value whether reach it is pre-
The threshold value for first setting, if it is, going to step s203；Otherwise terminate.In the present embodiment, if
|Fn-Fn-1| >=Δ, RNC just triggers the transmission power parameter of UE and updates and by under RRC space interface signalings
Issue UE to go to adjust uplink transmission power, otherwise RNC does not go the transmission power parameter for triggering UE to update,
Do not go yet by RRC space interface signalings be handed down to UE go adjust uplink transmission power.Wherein Δ is threshold value,
The thresholding arranges magnitude relationship to the frequency of adjustment UE uplink transmission powers.The threshold value is bigger, adjusts UE
The frequency of uplink transmission power is low；The threshold value is less, and the frequency for adjusting UE uplink transmission powers is high.
Step s203, according to filtered quality of uplink signal the transmission power parameter of UE is accordingly adjusted.
In the present embodiment, the transmission power parameter includes the transmission power parameter beta of E-DPCCHec、E-DPDCH
Transmission power parameter betaedAnd/or the transmission power parameter beta of DPDCHd.If user uplink business is adopted
E-DCH is transmitted, then the β of adjustment UEec、βed；If user uplink business adopts DCH (Dedicated
Channel, dedicated channel) transmission, then the β of adjustment UEd；If user uplink business adopts E-DCH
Simultaneously uplink service is also transmitted using DCH for transmission, then the β of adjustment UEec、βedAnd βd。
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is the value that the quality of uplink signal n moment filters；A, B, C be greater than or equal to 0 it is normal
Amount.
Step s204, is handed down to UE and goes to adjust by RRC space interface signalings by the transmission power parameter after adjustment
Whole uplink transmission power.In the present embodiment, the β of UE after adjustmentec、βedAnd/or βdValue, by RRC
Space interface signaling is handed down to UE and goes to adjust uplink transmission power.
Embodiment 2
When using system shown in Fig. 1, a kind of method for controlling uplink transmission power of the embodiment of the present invention is such as
Shown in Fig. 2, the method comprising the steps of：
Step s201, is filtered to the out-hole run signal intensity of base station cell.In the present embodiment, RNC
The out-hole run signal intensity of macro base station cell is filtered, the out-hole run signal include but is not limited on
SIR, RSCP and uplink error rate BER of row dedicated pilot, filtering mode is entered using IIR filtering methods
Row is filtered, and detailed process is：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnIt is value that the quality of uplink signal n moment filters；Fn-1It is value that the quality of uplink signal n-1 moment filters；
The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is the n moment
Upward signal measured value；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Value for k, under low speed Rayleigh rapid fading environment, filter factor k values can be with slightly larger, this
Sample can cause measurement result more accurate；Under high velocity environment, filter factor k values can with slightly smaller,
Measurement reflection speed can be lifted.When k is equal to 0, equivalent to wave filter transparent transmission signal, without filtration.
Step s202, judge the difference of the quality of uplink signal filter value of adjacent moment absolute value whether reach it is pre-
The threshold value for first setting, if it is, going to step s203；Otherwise terminate.In the present embodiment, if
|Fn-Fn-1| >=Δ, RNC just triggers the transmission power parameter of UE and updates and by under RRC space interface signalings
Issue UE to go to adjust uplink transmission power, otherwise RNC does not go the transmission power parameter for triggering UE to update,
Do not go yet by RRC space interface signalings be handed down to UE go adjust uplink transmission power.Wherein Δ is threshold value,
The thresholding arranges magnitude relationship to the frequency of adjustment UE uplink transmission powers.The threshold value is bigger, adjusts UE
The frequency of uplink transmission power is low；The threshold value is less, and the frequency for adjusting UE uplink transmission powers is high.
Step s203, according to filtered quality of uplink signal the transmission power parameter of UE is accordingly adjusted.
In the present embodiment, the transmission power parameter includes the transmission power parameter beta of E-DPCCHec、E-DPDCH
Transmission power parameter betaedAnd/or the transmission power parameter beta of DPDCHd.If user uplink business is adopted
E-DCH is transmitted, then the β of adjustment UEec、βed；If user uplink business is transmitted using DCH,
So adjust the β of UEd；If user uplink business is using E-DCH transmission, and simultaneously uplink service is also adopted
DCH is transmitted, then the β of adjustment UEec、βedAnd βd。
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is the value that the quality of uplink signal n moment filters；A, B, C be greater than or equal to 0 it is normal
Amount.
Step s204, is handed down to UE and goes to adjust by RRC space interface signalings by the transmission power parameter after adjustment
Whole uplink transmission power.In the present embodiment, the β of UE after adjustmentec、βedAnd/or βdValue, by RRC
Space interface signaling is handed down to UE and goes to adjust uplink transmission power.
Embodiment 3
When using system shown in Fig. 1, a kind of method for controlling uplink transmission power of the embodiment of the present invention is such as
Shown in Fig. 2, the method comprising the steps of：
Step s201, is filtered to the out-hole run signal intensity of base station cell.In the present embodiment, RNC
Macrocell is filtered with the difference of the out-hole run signal of low-power base station cell, the out-hole run signal
SIR, RSCP and uplink error rate BER of including but not limited to up dedicated pilot, filtering mode is adopted
IIR filtering methods are filtered, and detailed process is：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that to be macrocell filter with the n moment of the difference of low-power base station cell out-hole run signal；Fn-1It is
The value that macrocell is filtered with the n-1 moment of the difference of low-power base station cell out-hole run signal；N and n-1
The moment time granularity of difference is determined interval time by out-hole run signal reporting；MnIt is the up of n moment
Signal measurements；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Value for k, under low speed Rayleigh rapid fading environment, filter factor k values can be with slightly larger, this
Sample can cause measurement result more accurate；Under high velocity environment, filter factor k values can with slightly smaller,
Measurement reflection speed can be lifted.When k is equal to 0, equivalent to wave filter transparent transmission signal, without filtration.
Step s202, judge the difference of the quality of uplink signal filter value of adjacent moment absolute value whether reach it is pre-
The threshold value for first setting, if it is, going to step s203；Otherwise terminate.In the present embodiment, if
|Fn-Fn-1| >=Δ, RNC just triggers the transmission power parameter of UE and updates and by under RRC space interface signalings
Issue UE to go to adjust uplink transmission power, otherwise RNC does not go the transmission power parameter for triggering UE to update,
Do not go yet by RRC space interface signalings be handed down to UE go adjust uplink transmission power.Wherein Δ is threshold value,
The thresholding arranges magnitude relationship to the frequency of adjustment UE uplink transmission powers.The threshold value is bigger, adjusts UE
The frequency of uplink transmission power is low；The threshold value is less, and the frequency for adjusting UE uplink transmission powers is high.
Step s203, according to the quality of uplink signal after differential filtering the transmission power ginseng of UE is accordingly adjusted
Number.In the present embodiment, the transmission power parameter includes the transmission power parameter beta of E-DPCCHec、
The transmission power parameter beta of E-DPDCHedAnd/or the transmission power parameter beta of DPDCHd.If on user
Industry business is transmitted using E-DCH, then the β of adjustment UEec、βed；If user uplink business is adopted
DCH is transmitted, then the β of adjustment UEd；If user uplink business is simultaneously up using E-DCH transmission
Business is also transmitted using DCH, then the β of adjustment UEec、βedAnd βd。
The transmission power parameter is obtained by below equation：
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is that macrocell is filtered with the n moment of the difference of low-power base station cell out-hole run signal
Value；A, B, C are greater than or equal to 0 constant.
Step s204, is handed down to UE and goes to adjust by RRC space interface signalings by the transmission power parameter after adjustment
Whole uplink transmission power.In the present embodiment, the β of UE after adjustmentec、βedAnd/or βdValue, by RRC
Space interface signaling is handed down to UE and goes to adjust uplink transmission power.
Embodiment 4
When using system shown in Fig. 1, a kind of method for controlling uplink transmission power of the embodiment of the present invention is such as
Shown in Fig. 2, the method comprising the steps of：
Step s201, is filtered to the out-hole run signal intensity of base station cell.In the present embodiment, RNC
The out-hole run signal intensity of low-power base station cell and macro base station cell is filtered respectively, the up survey
Amount signal includes but is not limited to SIR, RSCP and uplink error rate BER of up dedicated pilot, filtering side
Formula is filtered using IIR filtering methods, and detailed process is：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that the expression quality of uplink signal n moment filters, FnFor n moment macro base station cell uplink measurement signals
Filtered value FmnOr value F after n moment low-power base station cell out-hole run signal filteringssn；Fn-1Table
Show the value that the quality of uplink signal n-1 moment filters, Fn-1For n-1 moment macro base station cell uplink measurement signals
Filtered value Fm(n-1)Or value F after n-1 moment low-power base station cell out-hole run signal filteringss(n-1)；
The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；Mn is the n moment
Upward signal measured value；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
Value for k, under low speed Rayleigh rapid fading environment, filter factor k values can be with slightly larger, this
Sample can cause measurement result more accurate；Under high velocity environment, filter factor k values can with slightly smaller,
Measurement reflection speed can be lifted.When k is equal to 0, equivalent to wave filter transparent transmission signal, without filtration.
Step s202, judge the difference of the quality of uplink signal filter value of adjacent moment absolute value whether reach it is pre-
The threshold value for first setting, if it is, going to step s203；Otherwise terminate.In the present embodiment, if
|Fn-Fn-1| >=Δ, RNC just triggers the transmission power parameter of UE and updates and by under RRC space interface signalings
Issue UE to go to adjust uplink transmission power, otherwise RNC does not go the transmission power parameter for triggering UE to update,
Do not go yet by RRC space interface signalings be handed down to UE go adjust uplink transmission power.Wherein Δ is threshold value,
The thresholding arranges magnitude relationship to the frequency of adjustment UE uplink transmission powers.The threshold value is bigger, adjusts UE
The frequency of uplink transmission power is low；The threshold value is less, and the frequency for adjusting UE uplink transmission powers is high.
Step s203, according to the difference after the out-hole run signal filtering of macro base station cell and low-power base station cell
Value accordingly adjusts the transmission power parameter of UE.In the present embodiment, the transmission power parameter includes
The transmission power parameter beta of E-DPCCHec, E-DPDCH transmission power parameter betaedAnd/or DPDCH
Transmission power parameter betad.If user uplink business is transmitted using E-DCH, then the β of adjustment UEec、
βed；If user uplink business is transmitted using DCH, then the β of adjustment UEd；If user uplink industry
Using E-DCH transmission, simultaneously uplink service is also transmitted using DCH for business, then the β of adjustment UEec、βed
And βd。
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fnd-A；
(βed)n=(βed)n-1+Fnd-B；
(βd)n=(βd)n-1+Fnd-C；
Fdn=Fmn-Fsn；
Wherein FdnBe n moment macro base station cells and low-power base station cell out-hole run signal filtering after
Difference；FmnIt is the filtered value of n moment macro base station cell uplink measurement signals；FsnIt is n moment low-power
Value after the out-hole run signal filtering of base station cell；A, B, C are greater than or equal to 0 constant.
Step s204, is handed down to UE and goes to adjust by RRC space interface signalings by the transmission power parameter after adjustment
Whole uplink transmission power.In the present embodiment, the β of UE after adjustmentec、βedAnd/or βdValue, by RRC
Space interface signaling is handed down to UE and goes to adjust uplink transmission power.
Embodiment 5
A kind of uplink transmission power control device of the embodiment of the present invention is as shown in figure 3, described device includes filter
Ripple module, judge module and power regulation module, the judge module respectively with the filtration module and power
Adjusting module connects, and the filtration module is connected with the power regulation module.
Filtration module is used to be filtered the out-hole run signal intensity of base station cell；Judge module is used for will
The absolute value of the difference of the quality of uplink signal filter value of adjacent moment is compared with threshold value set in advance, sentences
It is disconnected that whether the uplink transmission power of UE is adjusted；Power regulation module is used for according to filtered up
Signal quality is adjusted to the uplink transmission power of UE.
The present invention in the case of macrocell and the low power cell mixed networking of same frequency, when upward signal occur it is acute
During strong fluctuation, the out-hole run signal intensity of base station cell is filtered, and according to filtered up letter
Number quality is adjusted to the uplink transmission power of UE, so as to avoid the upward signal acute variation of user,
The uplink service experience of user is improved, heterogeneous network system ascending performance capacity is increased.
Although being example purpose, the preferred embodiments of the present invention are had been disclosed for, those skilled in the art will
Recognize that various improvement, increase and replacement are also possible, therefore, the scope of the present invention should be not limited to
State embodiment.
Claims (14)
1. a kind of method for controlling uplink transmission power, it is characterised in that include：
A, the out-hole run signal intensity to base station cell are filtered；
B, the uplink transmission power of UE is adjusted according to filtered quality of uplink signal.
2. method for controlling uplink transmission power as claimed in claim 1, it is characterised in that the step
A includes：The out-hole run signal intensity of low-power base station cell or macro base station cell is filtered.
3. method for controlling uplink transmission power as claimed in claim 2, it is characterised in that in the step
In rapid A, out-hole run signal intensity is filtered using endless impulse response filter method, concrete bag
Include：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnIt is value that the quality of uplink signal n moment filters；Fn-1It is to filter at the quality of uplink signal n-1 moment
Value；The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is n
The upward signal measured value at moment；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
4. method for controlling uplink transmission power as claimed in claim 3, it is characterised in that in the step
In rapid B, including：According to filtered quality of uplink signal FnThe transmission power parameter of UE is accordingly adjusted,
The transmission power parameter after adjustment is handed down to into UE by RRC space interface signalings to go to adjust uplink transmission power；
The transmission power parameter includes the transmission power parameter beta of E-DPCCHec, E-DPDCH transmission power
Parameter betaedAnd/or the transmission power parameter beta of DPDCHd；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is the value that the quality of uplink signal n moment filters；A, B, C be greater than or equal to 0 it is normal
Amount.
5. method for controlling uplink transmission power as claimed in claim 1, it is characterised in that the step
A includes：Macrocell is filtered with the difference of the out-hole run signal of low-power base station cell.
6. method for controlling uplink transmission power as claimed in claim 5, it is characterised in that in the step
In rapid A, out-hole run signal intensity is filtered using endless impulse response filter method, concrete bag
Include：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that to be macrocell filter with the n moment of the difference of low-power base station cell out-hole run signal；
Fn-1The value that to be macrocell filter with the n-1 moment of the difference of low-power base station cell out-hole run signal；n
The time granularity differed with the n-1 moment is determined interval time by out-hole run signal reporting；MnIt is the n moment
Upward signal measured value；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
7. method for controlling uplink transmission power as claimed in claim 6, it is characterised in that in the step
In rapid B, including：According to the quality of uplink signal F after differential filteringnAccordingly adjust the transmission power of UE
Parameter, is handed down to UE and goes up of adjustment by RRC space interface signalings by the transmission power parameter after adjustment
Send power；The transmission power parameter includes the transmission power parameter beta of E-DPCCHec, E-DPDCH
Transmission power parameter betaedAnd/or the transmission power parameter beta of DPDCHd；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fn-A；
(βed)n=(βed)n-1+Fn-B；
(βd)n=(βd)n-1+Fn-C；
Wherein Fn is that macrocell is filtered with the n moment of the difference of low-power base station cell out-hole run signal
Value；A, B, C are greater than or equal to 0 constant.
8. method for controlling uplink transmission power as claimed in claim 1, it is characterised in that the step
A includes：The out-hole run signal intensity of low-power base station cell and macro base station cell is filtered respectively.
9. method for controlling uplink transmission power as claimed in claim 8, it is characterised in that in the step
In rapid A, out-hole run signal intensity is filtered using endless impulse response filter method, concrete bag
Include：
According to formula Fn=(1- α) × Fn-1+α×MnOut-hole run signal intensity is filtered, wherein：
FnThe value that the expression quality of uplink signal n moment filters, FnFor the measurement of n moment macro base stations cell uplink
Value F after signal filteringmnOr value F after n moment low-power base station cell out-hole run signal filteringssn；
Fn-1The value that the expression quality of uplink signal n-1 moment filters, Fn-1For the measurement of n-1 moment macro base stations cell uplink
Value F after signal filteringm(n-1)Or the value after n-1 moment low-power base station cell out-hole run signal filterings
Fs(n-1)；The time granularity that n is differed with the n-1 moment is determined interval time by out-hole run signal reporting；Mn
It is the upward signal measured value at n moment；α=(1/2)(k/2), wherein k is filter factor, and k >=0.
10. method for controlling uplink transmission power as claimed in claim 9, it is characterised in that in the step
In rapid B, including：According to the difference after the out-hole run signal filtering of macro base station cell and low-power base station cell
Value FdnThe transmission power parameter of UE is accordingly adjusted, by RRC space interface signalings by the transmitting work(after adjustment
Rate parameter is handed down to UE and goes to adjust uplink transmission power；The transmission power parameter includes E-DPCCH's
Transmission power parameter betaec, E-DPDCH transmission power parameter betaedAnd/or the transmission power ginseng of DPDCH
Number βd；
The transmission power parameter is obtained by below equation：
(βec)n=(βec)n-1+Fnd-A；
(βed)n=(βed)n-1+Fnd-B；
(βd)n=(βd)n-1+Fnd-C；
Fdn=Fmn-Fsn；
Wherein FdnBe n moment macro base station cells and low-power base station cell out-hole run signal filtering after
Difference；FmnIt is the filtered value of n moment macro base station cell uplink measurement signals；FsnIt is n moment low-power
Value after the out-hole run signal filtering of base station cell；A, B, C are greater than or equal to 0 constant.
11. method for controlling uplink transmission power as described in any one of claim 1 to 10, its feature exists
In between step A and step B, also including：Judge the quality of uplink signal filter of adjacent moment
Whether the absolute value of the difference of wave number reaches threshold value set in advance, if it is, going to step B；Otherwise terminate.
12. method for controlling uplink transmission power as described in any one of claim 1 to 10, its feature exists
In the out-hole run signal includes SIR, RSCP and uplink error rate BER of up dedicated pilot.
13. a kind of uplink transmission power control devices, it is characterised in that described device includes：
Filtration module, for being filtered to the out-hole run signal intensity of base station cell；
Power regulation module, for being entered to the uplink transmission power of UE according to filtered quality of uplink signal
Row adjustment.
14. uplink transmission power control devices as claimed in claim 13, it is characterised in that the dress
Put also include judge module, for by the absolute value of the difference of the quality of uplink signal filter value of adjacent moment with it is pre-
The threshold value for first setting is compared, and judges whether to be adjusted the uplink transmission power of UE.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670434.7A CN106604380A (en) | 2015-10-16 | 2015-10-16 | Uplink transmission power control method and device |
| PCT/CN2016/099534 WO2017063483A1 (en) | 2015-10-16 | 2016-09-21 | Method and apparatus for controlling uplink transmit power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670434.7A CN106604380A (en) | 2015-10-16 | 2015-10-16 | Uplink transmission power control method and device |
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| CN106604380A true CN106604380A (en) | 2017-04-26 |
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| CN201510670434.7A Pending CN106604380A (en) | 2015-10-16 | 2015-10-16 | Uplink transmission power control method and device |
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| CN111818301B (en) * | 2020-06-18 | 2022-02-01 | 珠海云海创远科技有限公司 | Power regulation method, system and feedback device for COFDM (coded orthogonal frequency division multiplexing) image transmission system |
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| JP4977239B2 (en) * | 2010-06-30 | 2012-07-18 | 株式会社東芝 | Wireless communication device |
| CN103200624B (en) * | 2012-01-10 | 2015-11-25 | 鼎桥通信技术有限公司 | Self adaptation uplink enhancement method and radio network controller |
| CN103684520B (en) * | 2013-12-06 | 2016-08-17 | 浙江中星光电子科技有限公司 | A kind of satellite intermediate frequency chromacoder being applied to boat-carrying two-way communication antenna |
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Application publication date: 20170426 |