CN104620644B - A kind of method of power control, base station and system - Google Patents
A kind of method of power control, base station and system Download PDFInfo
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- CN104620644B CN104620644B CN201480001754.7A CN201480001754A CN104620644B CN 104620644 B CN104620644 B CN 104620644B CN 201480001754 A CN201480001754 A CN 201480001754A CN 104620644 B CN104620644 B CN 104620644B
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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]
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR or Eb/lo
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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]
-
- 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]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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Abstract
The invention discloses a kind of base stations, comprising: acquiring unit, for obtaining the value for the channel quality indicator (CQI) that terminal reports；Determination unit, the value of the CQI for being obtained according to the acquiring unit determine the transmission power range of the corresponding following special physical channel A-DPCH of the value of the CQI；Adjustment unit, for according to the terminal to the transmission power demand of the A-DPCH, adjusting the transmission power of the A-DPCH within the scope of the transmission power for the A-DPCH that the determination unit determines.Base station provided in an embodiment of the present invention can adjust the transmission power of the A-DPCH of itself according to terminal to the transmission power demand of the A-DPCH, so as to avoid A-DPCH from wasting transmission power resource.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of method of power control, base station and system.
Background technique
In order to enhance wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system
System supports the ability of Packet Service, introduces high-speed slender body theory (high speed packet access, HSDPA) skill
Art.All HSDPA users in cell share a plurality of High-Speed Shared Control Channel (high by way of time-division and code point
Speed share control channel, HS-SCCH) and High-Speed Physical Downlink Shared Channel (High-Speed
Physical Downlink Shared Channel, HS-PDSCH).
For each HSDPA user, according to third generation partner program (3rd Generation Partnership
Project, 3GPP) agreement regulation, in order to complete signaling bear, uplink and downlink inner and outer ring power control, the functions such as down-going synchronous need to match
Set a following special physical channel (accompanied dedicated physical channel, A-DPCH).
The power control process of A-DPCH are as follows: base station is according to inner-loop power control (the The inner loop power of terminal
Control, TPC) up-regulation or decline of the command word control to the power of A-DPCH, because terminal can take into account to signal radio bearer
The quality of reception of (Signaling radio bearer, SRB), can transmission power to A-DPCH there are certain surpluses, in this way
It has led to the transmission power resource that A-DPCH is occupied in real network and there is waste.
Summary of the invention
In order to solve technical problem in the embodiment of the present invention, the embodiment of the present invention provides a kind of base station, can be according to terminal
The value of the CQI reported determines the transmission power range of A-DPCH, to adjust the transmission power model of A-DPCH in the range
It encloses, wastes transmission power resource so as to avoid following special physical channel A-DPCH.The embodiment of the invention also provides corresponding
Method and system.
In a first aspect, the embodiment of the invention provides a kind of base stations, comprising:
Acquiring unit, for obtaining the value for the channel quality indicator (CQI) that terminal reports；
Determination unit, the value of the CQI for being obtained according to the acquiring unit determine that the value of the CQI is corresponding
The transmission power range of following special physical channel A-DPCH；
Adjustment unit, for the determination unit determine the A-DPCH transmission power within the scope of, according to described
Terminal adjusts the transmission power of the A-DPCH to the transmission power demand of the A-DPCH.
In the first possible implementation of the first aspect,
The determination unit, specifically for the value according to the CQI, from each value of CQI and it is described be respectively worth it is corresponding
In the relation table or analogous diagram of the transmission power of A-DPCH, the transmitting function of the corresponding A-DPCH of the value of the CQI is determined
Rate range.
The first possible implementation with reference to first aspect, in the second possible implementation,
The determination unit is specifically used for when controlling data to terminal transmission by signal radio bearer SRB, according to institute
The value for stating CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmission power relation table or analogous diagram
In, determine the transmission power range of the A-DPCH of the corresponding carrying SRB of the value of the CQI.
With reference to first aspect or first aspect the first to second any one possible implementation, at the third
In possible implementation,
The acquiring unit, specifically for when the terminal be in service link and non-service link it is Zone switched when,
Obtain the value of the CQI for the service link that terminal reports；
The determination unit determines the A- of the service link specifically for the value according to the CQI of the service link
The transmission power range of DPCH, and the non-service link is set by the transmission power range of the A-DPCH of the service link
A-DPCH transmission power range.
With reference to first aspect or first aspect the first to second any one possible implementation, at the 4th kind
In possible implementation, the base station further include: up-regulation unit and transmitting unit,
The up-regulation unit for being in hard handover region when the acquiring unit gets the terminal, and passes through letter
When number radio bearer SRB controls data to terminal transmission, the transmission power of the A-DPCH is raised into preset value；
The transmitting unit, for being emitted with the A-DPCH transmission power after the up-regulation unit up-regulation by the SRB
The control data.
With reference to first aspect or first to fourth kind of first aspect any one possible implementation, at the 5th kind
In possible implementation,
The acquiring unit, specifically for obtaining the power of non-high-speed downlink packet access HSDPA, as the non-HSDPA
Power prescribe a time limit more than preset gate, then obtain the channel quality indicator (CQI) that terminal reports.
Second aspect, the embodiment of the invention provides a kind of methods of power control, comprising:
Base station obtains the value for the channel quality indicator (CQI) that terminal reports；
The base station determines the corresponding following special physical channel A-DPCH's of the value of the CQI according to the value of the CQI
Transmission power range；
The base station is within the scope of the transmission power of the A-DPCH, according to the terminal to the transmitting function of the A-DPCH
Rate demand adjusts the transmission power of the A-DPCH.
In the first possible implementation of the second aspect, the base station is according to the value of the CQI, determine described in
The transmission power range of the corresponding A-DPCH of the value of CQI, comprising:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for hair
It penetrates in the relation table or analogous diagram of power, determines the transmission power range of the corresponding A-DPCH of the value of the CQI.
The first possible implementation in conjunction with second aspect, in the second possible implementation, when passing through signal
When radio bearer SRB controls data to terminal transmission, the base station is according to the value of the CQI, from each value of CQI and each value
In the relation table or analogous diagram of transmission power needed for corresponding A-DPCH, determine that the value of the CQI is corresponding described
The transmission power range of the transmission power range of A-DPCH, comprising:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for hair
It penetrates in the relation table or analogous diagram of power, determines the transmitting of the A-DPCH of the corresponding carrying SRB of the value of the CQI
Power bracket.
In conjunction with second aspect or second aspect the first to second any one possible implementation, at the third
In possible implementation, when the terminal be in service link and non-service link it is Zone switched when, the base station obtains
The value for the channel quality indicator (CQI) that terminal reports, comprising:
The base station obtains the value of the CQI for the service link that terminal reports；
The base station determines the corresponding following special physical channel A-DPCH's of the value of the CQI according to the value of the CQI
Transmission power range, comprising:
The base station determines the transmission power of the A-DPCH of the service link according to the value of the CQI of the service link
Range, and set the transmission power range of the A-DPCH of the service link to the transmitting of the A-DPCH of the non-service link
Power bracket.
In conjunction with second aspect or second aspect the first to second any one possible implementation, at the 4th kind
In possible implementation, the method also includes:
When the terminal is in hard handover region, and controls data to terminal transmission by signal radio bearer SRB, institute
It states base station and the transmission power of the A-DPCH is raised into preset value, and the SRB is passed through with the A-DPCH transmission power after raising
Emit the control data.
In conjunction with second aspect or first to fourth kind of second aspect any one possible implementation, at the 5th kind
In possible implementation, the base station obtains the value for the channel quality indicator (CQI) that terminal reports, comprising:
The base station obtains the power of non-high-speed downlink packet access HSDPA；
When the power of the non-HSDPA is prescribed a time limit more than preset gate, then the channel quality that the base station obtains that terminal reports refers to
Show CQI.
The third aspect, the embodiment of the invention provides a kind of base stations, comprising: at least one processor, memory, transmitting-receiving letter
Machine, communication interface and bus system, the processor, memory, transceiver are communicated by bus system, and the communication connects
Mouth is communicated for the base station with base station controller, and the transceiver with terminal for communicating, and the memory is for storing
The processor executes the instruction to the transmission power control of following special physical channel A-DPCH；
Wherein, the processor is for executing following steps:
Obtain the value for the channel quality indicator (CQI) that terminal reports；
According to the value of the CQI, the transmission power of the corresponding following special physical channel A-DPCH of the value of the CQI is determined
Range；
Within the scope of the transmission power of the A-DPCH, according to the terminal to the transmission power demand of the A-DPCH,
Adjust the transmission power of the A-DPCH.
In the first possible implementation of the third aspect,
The processor described is worth from each value of CQI and respectively corresponding A- specifically for the value according to the CQI
In the relation table or analogous diagram of transmission power needed for DPCH, the transmitting of the corresponding A-DPCH of the value of the CQI is determined
Power bracket.
The first possible implementation in conjunction with the third aspect, in the second possible implementation,
The processor is specifically used for when controlling data to terminal transmission by signal radio bearer SRB, according to described
The value of CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmission power relation table or analogous diagram
In, determine the transmission power range of the A-DPCH of the corresponding carrying SRB of the value of the CQI.
In conjunction with the third aspect or the third aspect the first to second any one possible implementation, at the third
In possible implementation,
The processor, specifically for when the terminal be in service link and non-service link it is Zone switched when, obtain
The value of the CQI for the service link for taking terminal to report；According to the value of the CQI of the service link, the service link is determined
A-DPCH transmission power range, and set the non-serving for the transmission power range of the A-DPCH of the service link
The transmission power range of the A-DPCH of link.
In conjunction with the third aspect or the third aspect the first to second any one possible implementation, at the 4th kind
In possible implementation,
The processor is specifically used for being in hard handover region when the terminal, and passes through signal radio bearer SRB to end
When holding emission control data, the transmission power of the A-DPCH is raised into preset value；
The transceiver, for emitting the control data by the SRB with the A-DPCH transmission power after raising.
In conjunction with the third aspect or first to fourth kind of the third aspect any one possible implementation, at the 5th kind
In possible implementation,
The processor, specifically for obtaining the power of non-high-speed downlink packet access HSDPA, when the non-HSDPA's
Power is prescribed a time limit more than preset gate, then obtains the channel quality indicator (CQI) that terminal reports.
Fourth aspect, the embodiment of the invention provides a kind of systems of power control, comprising: terminal and base station, the base
It stands as any base station of above-mentioned technical proposal.
Base station acquiring unit provided in an embodiment of the present invention obtains the value for the channel quality indicator (CQI) that terminal reports, and determines
The value for the CQI that unit is obtained according to the acquiring unit determines the corresponding following special physical channel A- of the value of the CQI
The transmission power range of DPCH, adjustment unit is within the scope of the transmission power for the A-DPCH that the determination unit determines, root
According to the terminal to the transmission power demand of the A-DPCH, the transmission power of the A-DPCH is adjusted.Transmission power range
Transmission power range.Compared with there is waste in the transmission power resource that A-DPCH in the prior art is occupied, the embodiment of the present invention
The base station of offer can adjust the transmission power of the A-DPCH of itself according to terminal to the transmission power demand of the A-DPCH,
So as to avoid A-DPCH from wasting transmission power resource.Even if the demand of terminal is higher than the transmission power model of the A-DPCH
When the upper limit enclosed, also only by the A-DPCH power adjustment to the upper limit, A-DPCH function that thus can be excessive to avoid demanding terminal
When rate resource, A-DPCH is caused to waste transmission power resource.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is an embodiment schematic diagram of the system of power control in the embodiment of the present invention；
Fig. 2 is another embodiment schematic diagram of the method for power control in the embodiment of the present invention；
Fig. 3 is another embodiment schematic diagram of the method for power control in the embodiment of the present invention；
Fig. 4 is an embodiment schematic diagram of base station in the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram of base station in the embodiment of the present invention；
Fig. 6 is another embodiment schematic diagram of base station in the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention provides a kind of base station, can determine the transmitting function of A-DPCH according to the value for the CQI that terminal reports
Rate range, to adjust the transmission power range of A-DPCH, in the range so as to avoid following special physical channel A-
DPCH wastes transmission power resource.The embodiment of the invention also provides corresponding method and system.It carries out individually below specifically
It is bright.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of system of power control, the system of the power control includes
Terminal and base station, by idle port communication between the terminal and base station, control following special physical channel (A-DPCH,
Accompanied dedicated physical channel) during, terminal is indicated to base station reporting channel quality
The value of (CQI, Channel Quality Indicator), base station determine that the value of the CQI is corresponding according to the value of the CQI
The transmission power range of following special physical channel A-DPCH, and within the scope of the transmission power of the A-DPCH, according to described
Terminal adjusts the transmission power of the A-DPCH to the transmission power demand of the A-DPCH.
Specific process can be with are as follows:
In the embodiment of the present invention, research staff indicates (CQI, Channel in the channel quality of different values in advance
Quality Indicator) under environment, by largely emulating and confirmatory experiment, finds and can guarantee that terminal is out-of-step free and just
When often receiving information, following special physical channel (A-DPCH, accompanied dedicated physical channel)
Minimum emissive power, the range for the CQI that terminal reports is 0-30, and the value of CQI each in this way has a corresponding minimum A-
The transmission power of DPCH；Simultaneously, it is contemplated that the difference of power demand under different channels environment, to guarantee that terminal normally connects
It receives, needs to raise the transmission power of A-DPCH on this basis, determine the transmitting function of the corresponding maximum A-DPCH of the value of each CQI
Rate ultimately forms the CQI and the correspondence table of the transmission power of A-DPCH corresponding to each value of each value, as shown in table 1.
The mapping table of the transmission power of table 1:CQI and A-DPCH
As shown in table 1, when the value of CQI is 3, it was determined that no signal radio bearer corresponding with CQI=3 from table
The minimum emissive power of A-DPCH is P when (Signaling radio bearer, SRB)minnoSRB(3), the maximum hair of A-DPCH
Penetrating power is PmaxnoSRB(3), in this way, the transmission power range of the corresponding A-DPCH of CQI=3 is P as no SRBminnoSRB(3)
To PmaxnoSRB(3)。
Passing through the case where SRB controls data to terminal transmission on A-DPCH moreover, considering in the embodiment of the present invention,
So when there is SRB on A-DPCH, the minimum emissive power of when having SRB A-DPCH corresponding with CQI=3 is PminwithSRB
(3), the maximum transmission power of A-DPCH is PmaxwithSRB(3), in this way, when there is SRB the corresponding A-DPCH of CQI=3 transmitting
Power bracket is PminwithSRB(3) P is arrivedmaxwithSRB(3)。
When SRB the maximum transmission power of A-DPCH and minimum emissive power be all respectively greater than without SRB be A-DPCH most
Big transmission power and minimum emissive power.
Either there is the case where SRB, or the case where without SRB, the minimum emissive power of the corresponding A-DPCH of CQI is ok
The lower limit of the transmission power range of referred to as A-DPCH, maximum transmission power can be known as the upper of the transmission power range of A-DPCH
Limit.
Moreover, being not limited to only determine by mode shown in table 1, also in the transmission power range for determining A-DPCH
It can be obtained by analogous diagram shown in Fig. 2 determination.
Related table shown in table 1 or analogous diagram shown in Fig. 2 can be set in advance in the memory of base station,
It can be not stored in base station, such as: it is stored in base station controller, passes through base when base station needs the relation table and analogous diagram
The interface between base station controller of standing obtains the relation table or analogous diagram.In this way, base station is in the CQI for getting terminal and reporting
Value when, so that it may the power bracket of the corresponding A-DPCH of value of the CQI is determined according to the relation table or analogous diagram, in this way,
It can be according to terminal to the transmission power demand of the A-DPCH, in the upper and lower bound range of the power of the A-DPCH
It is interior, adjust the transmission power of the A-DPCH.The process of adjustment may is that terminal to Base Transmitter command word, band in command word
There are up-regulation or decline instruction, such as: up-regulation 1dB, but the power adjustment in the embodiment of the present invention can only be in the corresponding transmitting function of CQI
It is adjusted within the scope of rate, even if when the range limit of transmission power of the demand of terminal higher than the A-DPCH, also only will
The A-DPCH transmission power is adjusted to the upper limit, in this manner it is possible to when avoiding the excessive A-DPCH transmission power resource of demanding terminal,
A-DPCH is caused to waste transmission power resource.
The corresponding relationship of the upper and lower bound of the transmission power of the value and A-DPCH of CQI, can also be managed refering to Fig. 2
Solution.
It is shown in Fig. 2 to emulate the upper and lower bound for showing the power of the corresponding A-DPCH of value of each CQI.
In addition, in embodiments herein, it is also contemplated that, when the terminal is in service link and non-service link
It is Zone switched when, because of not only presence service link between terminal and base station, but also there are non-service links, but only service link has
CQI, so, the value of the CQI of the service link reported according to terminal can determine the transmitting function of the A-DPCH of the service link
Rate range.Because the channel quality of non-service link and the channel quality of service link are close, so, it can be by the service link
A-DPCH transmission power range be set as the non-service link A-DPCH transmission power range.
For the A-DPCH under hard handover state, if there is control data need to emit by SRB, because hard handover needs
It is switched to base station or the cell of other different frequencies, so needing respectively to be worth corresponding ADPCH with described in each value of CQI
Transmission power corresponding relationship basis on, the value of maximum transmission power is raised into preset value, allows base station with bigger transmitting function
Rate is by SRB emission control data, and to guarantee normally receiving for terminal, in the embodiment of the present invention, preset value can be to set in advance
The specific value set, such as: 2dB.
Control data in the embodiment of the present invention can for wireless heterogeneous networks (Radio Resource Control,
RRC) the relevant message data that connection is established, rebuild.
Furthermore, it is contemplated that, when cell downlink eats dishes without rice or wine heavier loads, downlink space interface load, which becomes, to be influenced in real network
The bottleneck of network performance can promote overall network performance using this programme at this time；When cell downlink eats dishes without rice or wine light load, under
It is not the bottleneck for influencing network performance that row, which eats dishes without rice or wine to load, can not use the program, reduce the influence to network performance；In this way,
It can be decided whether by determining the power of non-high-speed downlink packet access HSDPA using scheme provided herein,
Specifically it may is that
Determine the power of non-high-speed downlink packet access HSDPA；
When the power of the non-HSDPA is prescribed a time limit more than preset gate, then the channel quality indicator (CQI) that terminal reports is obtained.
In the embodiment of the present invention, preset thresholding can be 100dB, and certainly, preset thresholding is only lifted in the embodiment of the present invention
Example is illustrated, and specific value can be obtained according to test the case where eating dishes without rice or wine to load, such as: when the weight bearing for load of eating dishes without rice or wine is more than sky
When 80% or other numerical value of the total bearing capacity of mouth, the power setting for testing the HSDPA obtained is preset thresholding.
Compared with there is waste in the transmission power resource that A-DPCH in the prior art is occupied, function provided in an embodiment of the present invention
The method of rate control, can be according to terminal to the transmission power demand of the A-DPCH, and base station adjusts the transmitting of itself A-DPCH
Power, so as to avoid A-DPCH from wasting transmission power resource.
Moreover, scheme provided by the embodiment of the present invention gives the bound of transmission power, it is contemplated that various channels
Transmission power the case where, therefore be capable of the variation of dynamically adapting channel condition, on the basis of obtaining power gain, reduce call drop
Probability.
It is explained by the specific of control process of the CQI to the transmission power of A-DPCH by above-mentioned between terminal and base station
It states, refering to Fig. 3, the embodiment of the invention also provides an embodiments of the method for power control, comprising:
201, base station obtains the value for the channel quality indicator (CQI) that terminal reports.
202, the base station determines the corresponding following special physical channel A- of the value of the CQI according to the value of the CQI
The transmission power range of DPCH.
203, the base station is within the scope of the transmission power of the A-DPCH, according to the terminal to the hair of the A-DPCH
Power demand is penetrated, the transmission power of the A-DPCH is adjusted.
The embodiment of the present invention obtains the value for the channel quality indicator (CQI) that terminal reports using base station, and the base station is according to institute
The value for stating CQI determines the transmission power range of the corresponding following special physical channel A-DPCH of the value of the CQI, the base station
Within the scope of the transmission power of the A-DPCH, according to the terminal to the transmission power demand of the A-DPCH, described in adjustment
The transmission power of A-DPCH.Compared with the transmission power resource that A-DPCH in the prior art is occupied has waste, the present invention is implemented
The base station that example provides, can adjust the transmitting function of the A-DPCH of itself according to terminal to the transmission power demand of the A-DPCH
Rate, so as to avoid A-DPCH from wasting transmission power resource.Even if the demand of terminal is higher than the transmitting function of the A-DPCH
When the upper limit of rate range, also only by the A-DPCH power adjustment to the upper limit, A- that thus can be excessive to avoid demanding terminal
When DPCH power resource, A-DPCH is caused to waste transmission power resource.
Optionally, on the basis of above-mentioned Fig. 3 corresponding embodiment, the method for power control provided in an embodiment of the present invention
Another embodiment in,
The base station determines the transmission power range of the corresponding A-DPCH of the value of the CQI according to the value of the CQI, can
To include:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for hair
It penetrates in the relation table or analogous diagram of power, determines the transmission power range of the corresponding A-DPCH of the value of the CQI.
Optionally, on the basis of above-mentioned Fig. 3 corresponding alternative embodiment, power control provided in an embodiment of the present invention
In another embodiment of method,
When controlling data to terminal transmission by signal radio bearer SRB, the base station according to the value of the CQI, from
Each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmission power relation table or analogous diagram in, determine institute
The transmission power range for stating the transmission power range of the corresponding A-DPCH of value of CQI may include:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for hair
It penetrates in the relation table or analogous diagram of power, determines the transmitting of the A-DPCH of the corresponding carrying SRB of the value of the CQI
Power bracket.
Optionally, on the basis of the corresponding embodiment of above-mentioned Fig. 3 or alternative embodiment, function provided in an embodiment of the present invention
In another embodiment of the method for rate control,
When the terminal be in service link and non-service link it is Zone switched when, the base station obtains what terminal reported
The value of channel quality indicator (CQI) may include:
The base station obtains the value of the CQI for the service link that terminal reports；
The base station determines the corresponding following special physical channel A-DPCH's of the value of the CQI according to the value of the CQI
Transmission power range may include:
The base station determines the transmission power of the A-DPCH of the service link according to the value of the CQI of the service link
Range, and set the transmission power range of the A-DPCH of the service link to the transmitting of the A-DPCH of the non-service link
Power bracket.
Optionally, on the basis of the corresponding embodiment of above-mentioned Fig. 3 or alternative embodiment, function provided in an embodiment of the present invention
In another embodiment of the method for rate control, the method can also include:
When the terminal is in hard handover region, and controls data to terminal transmission by signal radio bearer SRB, institute
It states base station and the transmission power of the A-DPCH is raised into preset value, and the SRB is passed through with the A-DPCH transmission power after raising
Emit the control data.
Optionally, on the basis of the corresponding embodiment of above-mentioned Fig. 3 or alternative embodiment, function provided in an embodiment of the present invention
In another embodiment of the method for rate control,
The base station obtains the value for the channel quality indicator (CQI) that terminal reports, and may include:
The base station obtains the power of non-high-speed downlink packet access HSDPA；
When the power of the non-HSDPA is prescribed a time limit more than preset gate, then the channel quality that the base station obtains that terminal reports refers to
Show CQI.
The method of power control described in multiple embodiments of Fig. 3 of the present invention can refering to fig. 1 with the part Fig. 2 description
Understood, this place, which is not done, excessively to be repeated.
Refering to Fig. 4, an embodiment of base station provided in an embodiment of the present invention includes:
Acquiring unit 301, for obtaining the value for the channel quality indicator (CQI) that terminal reports；
Determination unit 302, for what is obtained according to the acquiring unit 301
The value of the CQI determines the transmission power model of the corresponding following special physical channel A-DPCH of the value of the CQI
It encloses；
Adjustment unit 303, for the determination unit 302 determine the A-DPCH transmission power within the scope of, root
According to the terminal to the transmission power demand of the A-DPCH, the transmission power of the A-DPCH is adjusted.
In the embodiment of the present invention, acquiring unit 301 obtains the value for the channel quality indicator (CQI) that terminal reports, determination unit
The value of 302 CQI obtained according to the acquiring unit 301, determines the corresponding following special physical channel of the value of the CQI
The transmission power range of A-DPCH, the transmission power model for the A-DPCH that adjustment unit 303 is determined in the determination unit 302
In enclosing, according to the terminal to the transmission power demand of the A-DPCH, the transmission power of the A-DPCH is adjusted.With existing skill
The transmission power resource that A-DPCH is occupied in art is compared in the presence of waste, and base station provided in an embodiment of the present invention can be according to terminal
To the transmission power demand of the A-DPCH, the transmission power of the A-DPCH is adjusted, so as to avoid A-DPCH waste hair
Penetrate power resource.
Optionally, on the basis of above-mentioned Fig. 4 corresponding embodiment, another implementation of base station provided in an embodiment of the present invention
In example,
The determination unit 302 is respectively corresponded specifically for the value according to the CQI from each value of CQI and each value
A-DPCH transmission power relation table or analogous diagram in, determine the transmitting of the corresponding A-DPCH of the value of the CQI
Power bracket.
Optionally, on the basis of above-mentioned Fig. 4 corresponding alternative embodiment, base station provided in an embodiment of the present invention it is another
In embodiment,
The determination unit 302 is specifically used for when controlling data to terminal transmission by signal radio bearer SRB, root
According to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for the relation table of transmission power or imitative
In true figure, the transmission power range of the A-DPCH of the corresponding carrying SRB of the value of the CQI is determined.
Optionally, on the basis of above-mentioned Fig. 4 corresponding embodiment or alternative embodiment, base station provided in an embodiment of the present invention
Another embodiment in,
The acquiring unit 301, specifically for being in the Zone switched of service link and non-service link when the terminal
When, obtain the value of the CQI for the service link that terminal reports；
The determination unit 302 determines the service link specifically for the value according to the CQI of the service link
The transmission power range of A-DPCH, and the non-serving chain is set by the transmission power range of the A-DPCH of the service link
The transmission power range of the A-DPCH on road.
Optionally, on the basis of above-mentioned Fig. 4 corresponding embodiment or alternative embodiment, refering to Fig. 5, the embodiment of the present invention is mentioned
In another embodiment of the base station of confession, the base station further include: up-regulation unit 304 and transmitting unit 305,
The up-regulation unit 304, for being in hard handover region when the acquiring unit 301 gets the terminal, and
When controlling data to terminal transmission by signal radio bearer SRB, the transmission power of the A-DPCH is raised into preset value；
The transmitting unit 305 passes through described for the A-DPCH transmission power after being raised with the up-regulation unit 304
SRB emits the control data.
Optionally, on the basis of above-mentioned Fig. 4 corresponding embodiment or alternative embodiment, base station provided in an embodiment of the present invention
Another embodiment in,
The acquiring unit 301 obtains the power of non-high-speed downlink packet access HSDPA, when the power of the non-HSDPA
It prescribes a time limit more than preset gate, then obtains the channel quality indicator (CQI) that terminal reports.
Fig. 6 is the structural schematic diagram of base station of the embodiment of the present invention 20.Base station 20 may include transceiver 210, at least one
Processor 230 (only depict one in Fig. 6, but actually can be multiple), memory 240, bus system 250 and and base station
The communication port 220 of controller communication, the transceiver 210 with terminal for communicating, the processor 230, memory
240, transceiver 210 is communicated by bus system 250.
Processor 230 and memory 240 can be physics point column, can also be and are integrated in together, and processor 230 can be with
There is one or multiple processors 230 integrate or point column, memory 240 can also have multiple.
Memory 240 may include read-only memory, random access memory, and provide instruction sum number to processor 230
According to.The a part of of memory 240 can also include nonvolatile RAM (NVRAM).
Memory 240 stores following element, executable modules or data structures perhaps their subset or
Their superset:
Operational order: including various operational orders, for realizing various operations.
Operating system: including various system programs, for realizing various basic businesses and the hardware based task of processing.
In embodiments of the present invention, operational order (operational order that processor 230 is stored by calling memory 240
It is storable in operating system), it performs the following operations:
Obtain the value for the channel quality indicator (CQI) that terminal reports；
According to the value of the CQI, the transmission power of the corresponding following special physical channel A-DPCH of the value of the CQI is determined
Range；
Within the scope of the transmission power of the A-DPCH, according to the terminal to the transmission power demand of the A-DPCH,
Adjust the transmission power of the A-DPCH.
In the embodiment of the present invention, base station 20 can be according to terminal to the transmission power demand of the A-DPCH, described in adjustment
The transmission power of A-DPCH, so as to avoid A-DPCH channel wastage transmission power resource.Even if the demand of terminal is higher than
When the upper limit of emission power of A-DPCH, also only by the A-DPCH power adjustment to the upper limit, in this manner it is possible to avoid demanding terminal mistake
When more A-DPCH power resources, A-DPCH is caused to waste transmission power resource.
The operation of 230 control base station 20 of processor, processor 230 can also be known as CPU (Central Processing
Unit, central processing unit).Memory 240 may include read-only memory, random access memory, and mention to processor 230
For instruction and data.The a part of of memory 240 can also include nonvolatile RAM (NVRAM).Specifically
In, the various components of base station 20 are coupled by bus system 250, and it includes that data are total that wherein bus system 250, which is removed,
It can also include power bus, control bus and status signal bus in addition etc. except line.But for the sake of clear explanation, scheming
It is middle that various buses are all designated as bus system 250.
The method that the embodiments of the present invention disclose can be applied in processor 230, or be realized by processor 230.
Processor 230 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 230 or the instruction of software form.Above-mentioned processing
Device 230 can be general processor, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array
(FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.May be implemented or
Person executes disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or
Person's processor is also possible to any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be straight
Connect and be presented as that hardware decoding processor executes completion, or in decoding processor hardware and software module combination executed
At.Software module can be located at random access memory, and flash memory, read-only memory, programmable read only memory or electrically-erasable can
In the storage medium of this fields such as programmable memory, register maturation.The storage medium is located at memory 240, and processor 230 is read
Information in access to memory 240, in conjunction with the step of its hardware completion above method.
Optionally, processor 230 specifically can: according to the value of the CQI, respectively corresponded from each value of CQI and each value
A-DPCH needed for transmission power relation table or analogous diagram in, determine the corresponding A-DPCH's of the value of the CQI
Transmission power range.
Optionally, processor 230 specifically can: when by signal radio bearer SRB to terminal transmission control data when, according to
The value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for the relation table of transmission power or imitative
In true figure, the transmission power range of the A-DPCH of the corresponding carrying SRB of the value of the CQI is determined.
Optionally, processor 230 specifically can: for being in the switch area of service link and non-service link when the terminal
When domain, the value of the CQI for the service link that terminal reports is obtained；According to the value of the CQI of the service link, the clothes are determined
The transmission power range of the A-DPCH of business link, and set described for the transmission power range of the A-DPCH of the service link
The transmission power range of the A-DPCH of non-service link.
Optionally, processor 230 can be with: be specifically used for be in hard handover region when the terminal, and pass through signal without
When line carrying SRB controls data to terminal transmission, the transmission power of the A-DPCH is raised into preset value；
The transceiver 210, for emitting the control number by the SRB with the A-DPCH transmission power after raising
According to.
Optionally, processor 230 specifically can:
The power for obtaining non-high-speed downlink packet access HSDPA, when the power of the non-HSDPA is prescribed a time limit more than preset gate,
Then obtain the channel quality indicator (CQI) that terminal reports.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Method, base station and the system for being provided for the embodiments of the invention power control above are described in detail,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；At the same time, for those skilled in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (19)
1. a kind of base station characterized by comprising
Acquiring unit, for obtaining the value for the channel quality indicator (CQI) that terminal reports；
Determination unit, the value of the CQI for being obtained according to the acquiring unit determine the corresponding carrying of the value of the CQI
The transmission power range of following special physical channel A-DPCH when signal radio bearer SRB, or when not carrying the SRB
The transmission power range of the A-DPCH；
Adjustment unit, for the determination unit determine the A-DPCH transmission power within the scope of, according to the terminal
To the transmission power demand of the A-DPCH, the transmission power of the A-DPCH is adjusted, the A-DPCH's adjusted
Transmission power is no more than the transmission power range of the A-DPCH.
2. base station according to claim 1, which is characterized in that
The determination unit described is worth from each value of CQI and respectively corresponding A- specifically for the value according to the CQI
In the relation table or analogous diagram of the transmission power of DPCH, the transmission power of the corresponding A-DPCH of the value of the CQI is determined
Range.
3. base station according to claim 2, which is characterized in that
The determination unit is specifically used for when controlling data to terminal transmission by signal radio bearer SRB, according to described
The value of CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmission power relation table or analogous diagram
In, determine the transmission power range of the A-DPCH of the corresponding carrying SRB of the value of the CQI.
4. base station according to claim 1 to 3, which is characterized in that
The acquiring unit, specifically for when the terminal be in service link and non-service link it is Zone switched when, obtain
The value of the CQI for the service link that terminal reports；
The determination unit determines the A-DPCH's of the service link specifically for the value according to the CQI of the service link
Transmission power range, and set the transmission power range of the A-DPCH of the service link to the A- of the non-service link
The transmission power range of DPCH.
5. base station according to claim 1 to 3, which is characterized in that the base station further include: up-regulation unit and transmitting
Unit,
The up-regulation unit, for be in hard handover region when the acquiring unit gets the terminal, and pass through signal without
When line carrying SRB controls data to terminal transmission, the transmission power of the A-DPCH is raised into preset value；
The transmitting unit, for being passed through described in SRB transmitting with the A-DPCH transmission power after the up-regulation unit up-regulation
Control data.
6. base station according to claim 1 to 3, which is characterized in that
The acquiring unit, specifically for obtaining the power of non-high-speed downlink packet access HSDPA, when the function of the non-HSDPA
Rate is prescribed a time limit more than preset gate, then obtains the channel quality indicator (CQI) that terminal reports.
7. a kind of method of power control characterized by comprising
Base station obtains the value for the channel quality indicator (CQI) that terminal reports；
The base station is adjoint when determining the corresponding carrying signal radio bearer SRB of the value of the CQI according to the value of the CQI
The transmission power range of dedicated physical channel A-DPCH, or the transmission power model of A-DPCH when not carrying the SRB
It encloses；
The base station is within the scope of the transmission power of the A-DPCH, according to the terminal to the transmission power need of the A-DPCH
It asks, adjusts the transmission power of the A-DPCH, the transmission power of the A-DPCH adjusted is no more than the A-DPCH
The transmission power range.
8. the method according to the description of claim 7 is characterized in that value of the base station according to the CQI, determines the CQI
The corresponding A-DPCH of value transmission power range, comprising:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmitting function
In the relation table or analogous diagram of rate, the transmission power range of the corresponding A-DPCH of the value of the CQI is determined.
9. according to the method described in claim 8, it is characterized in that, when being controlled by signal radio bearer SRB to terminal transmission
When data, the base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for hair
It penetrates in the relation table or analogous diagram of power, determines the transmission power range of the corresponding A-DPCH of the value of the CQI, wrap
It includes:
The base station according to the value of the CQI, from each value of CQI and it is described be respectively worth corresponding A-DPCH needed for transmitting function
In the relation table or analogous diagram of rate, the transmission power of the A-DPCH of the corresponding carrying SRB of the value of the CQI is determined
Range.
10. according to any method of claim 7-9, which is characterized in that when the terminal is in service link and non-clothes
Be engaged in link it is Zone switched when, the base station obtains the value for the channel quality indicator (CQI) that terminal reports, comprising:
The base station obtains the value of the CQI for the service link that terminal reports；
The base station determines the transmitting of the corresponding following special physical channel A-DPCH of the value of the CQI according to the value of the CQI
Power bracket, comprising:
The base station determines the transmission power range of the A-DPCH of the service link according to the value of the CQI of the service link,
And set the transmission power range of the A-DPCH of the service link to the transmission power of the A-DPCH of the non-service link
Range.
11. according to any method of claim 7-9, which is characterized in that the method also includes:
When the terminal is in hard handover region, and controls data to terminal transmission by signal radio bearer SRB, the base
It stands and the transmission power of the A-DPCH is raised into preset value, and emitted with the A-DPCH transmission power after raising by the SRB
The control data.
12. according to any method of claim 7-9, which is characterized in that the base station obtains the channel matter that terminal reports
The value of amount instruction CQI, comprising:
The base station obtains the power of non-high-speed downlink packet access HSDPA；
When the power of the non-HSDPA is prescribed a time limit more than preset gate, then the base station obtains the channel quality instruction that terminal reports
CQI。
13. a kind of base station characterized by comprising at least one processor, memory, transceiver, communication interface and bus
System, the processor, memory, transceiver are communicated by bus system, the communication interface for the base station with
Base station controller communication, the transceiver with terminal for communicating, and the memory is for storing the processor execution pair
The instruction of the transmission power control of following special physical channel A-DPCH；
Wherein, the processor is for executing following steps:
Obtain the value for the channel quality indicator (CQI) that terminal reports；
According to the value of the CQI, when determining the corresponding carrying signal radio bearer SRB of the value of the CQI with dedicated physics
The transmission power range of channel A-DPCH, or the transmission power range of A-DPCH when not carrying the SRB；
Within the scope of the transmission power of the A-DPCH, according to the terminal to the transmission power demand of the A-DPCH, adjustment
The transmission power of the A-DPCH, the transmission power of the A-DPCH adjusted are no more than the hair of the A-DPCH
Penetrate power bracket.
14. base station according to claim 13, which is characterized in that
The processor, specifically for the value according to the CQI, it is being stored from the memory or by it is described communication connect
Each value of CQI that mouth is got and it is described be respectively worth corresponding A-DPCH needed for transmission power relation table or analogous diagram
In, determine the transmission power range of the corresponding A-DPCH of the value of the CQI.
15. base station according to claim 14, which is characterized in that
The processor is specifically used for when controlling data to terminal transmission by signal radio bearer SRB, according to the CQI
Value, it is being stored from the memory or by the communication interface get CQI each value and each value it is right respectively
In the relation table or analogous diagram of transmission power needed for the A-DPCH answered, the corresponding carrying SRB of the value of the CQI is determined
The A-DPCH transmission power range.
16. any base station 3-15 according to claim 1, which is characterized in that
The processor, specifically for when the terminal be in service link and non-service link it is Zone switched when, obtain eventually
Hold the value of the CQI of the service link reported；According to the value of the CQI of the service link, the A- of the service link is determined
The transmission power range of DPCH, and the non-service link is set by the transmission power range of the A-DPCH of the service link
A-DPCH transmission power range.
17. any base station 3-15 according to claim 1, which is characterized in that
The processor is specifically used for being in hard handover region when the terminal, and is sent out by signal radio bearer SRB to terminal
When penetrating control data, the transmission power of the A-DPCH is raised into preset value；
The transceiver, for emitting the control data by the SRB with the A-DPCH transmission power after raising.
18. any base station 3-15 according to claim 1, which is characterized in that
The processor, specifically for obtaining the power of non-high-speed downlink packet access HSDPA, when the power of the non-HSDPA
It prescribes a time limit more than preset gate, then obtains the channel quality indicator (CQI) that terminal reports.
19. a kind of system of power control characterized by comprising terminal and base station, the base station are the claims 1-
6 any base stations.
Applications Claiming Priority (1)
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|---|---|---|---|
| PCT/CN2014/083685 WO2016019503A1 (en) | 2014-08-05 | 2014-08-05 | Power control method, base station and system |
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| CN104620644B true CN104620644B (en) | 2019-08-20 |
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| CN102752837A (en) * | 2012-06-25 | 2012-10-24 | 华为技术有限公司 | Power control method and equipment of special pilot frequency |
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| KR100832117B1 (en) * | 2002-02-17 | 2008-05-27 | 삼성전자주식회사 | Apparatus for transmitting/receiving uplink power offset in communication system using high speed downlink packet access scheme |
| JP4671771B2 (en) * | 2005-06-10 | 2011-04-20 | 株式会社エヌ・ティ・ティ・ドコモ | Wireless communication apparatus and wireless communication method |
| CN101433114B (en) * | 2006-05-04 | 2011-01-26 | 艾利森电话股份有限公司 | Method and equipment for acquiring high-efficiency downlink power transmission, and computer readable medium |
| JP4805047B2 (en) * | 2006-07-20 | 2011-11-02 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile station and handover control method |
| CN101902811B (en) * | 2009-05-26 | 2013-02-13 | 鼎桥通信技术有限公司 | Method for controlling power |
| CN102111861B (en) * | 2009-12-28 | 2014-05-07 | 电信科学技术研究院 | Method and equipment for controlling power of downlink control channel |
| JP5640386B2 (en) * | 2010-01-19 | 2014-12-17 | 住友電気工業株式会社 | Base station equipment |
| WO2011086965A1 (en) * | 2010-01-12 | 2011-07-21 | 住友電気工業株式会社 | Base station device |
| CN102186230B (en) * | 2011-05-12 | 2013-10-02 | 上海华为技术有限公司 | Method and device for processing channel quality |
| JP5553801B2 (en) * | 2011-07-11 | 2014-07-16 | 株式会社Ｎｔｔドコモ | Mobile station and handover control method |
| CN102647778B (en) * | 2012-03-29 | 2014-12-10 | 华为技术有限公司 | Power control method, power control system and related equipment |
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