CN107197511A - A kind of power regulating method and system - Google Patents
A kind of power regulating method and system Download PDFInfo
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- CN107197511A CN107197511A CN201710552419.1A CN201710552419A CN107197511A CN 107197511 A CN107197511 A CN 107197511A CN 201710552419 A CN201710552419 A CN 201710552419A CN 107197511 A CN107197511 A CN 107197511A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/10—Open loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—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. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/282—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the speed of the mobile
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present invention provides a kind of power regulating method and system, the technical problem larger for solving separating difficulty of the base station to different terminals on same PUCCH domains.This method includes：Base station obtains the end message for the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, and the end message is for the quantity and/or the movement velocity of each terminal of the terminal for indicating to be multiplexed on the PUCCH domains；The base station adjusts the power control parameters in the PUCCH domains based on the end message, and the power control parameters are for the ascending power for each terminal for determining to be multiplexed on the PUCCH domains.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of power regulating method and system.
Background technology
Power Control in Long Term Evolution (Long Term Evolution, LTE) system is divided into descending according to link direction
Two kinds of Power Control and uplink power control, wherein, the purpose of uplink power control is so that user in cell in guarantee
The interference to other users is reduced as far as possible on the basis of the row transmitting quality of data, extends the use time of end cell.
Uplink power control can be different right such as channel or detection reference signal according to its targeted different object
As being generally divided into polytype, such as Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH)
Power Control, Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) Power Control, detection
Reference signal (Sounding Reference Signal, SRS) Power Control, Physical Random Access Channel (Physical
Random Access Channel, PRACH) Power Control etc..Wherein, PUCCH is that user is sent by terminal device to base station
Ascending control information (Uplink Control Information, UCI), such as dispatch request, channel quality are indicated
(Channel Quality Indicator, CQI), hybrid automatic repeat-request (Hybrid Automatic Repeat
Request, HARQ) confirmation etc., therefore can ascending control information in PUCCH receive most important by base station.
At present, PUCCH Power Controls are mainly the scheme combined using open Loop Power control and close-loop power control.Its
In, open Loop Power control refers to by base station, is terminal configuration initial open loop power control parameters all in coverage, eventually
End is according to apart from the different path loss calculations of base station its initial p UCCH transmission powers etc., the initial open loop power control parameter
It is usually fixed constant.Close-loop power control refers to that base station can be according to the phase in LTE PHY 3GPP TS36.211
Criterion generation transmitting power control (Transmission Power Commond, TPC) order is closed, and TPC command is sent to
The process of connected terminal device.The criterion for generating TPC command generally can be by manufacturer or base station designed, designed and adjustment.
For example, base station is made an uproar according to the letter between the intensity of the useful signal received of measurement and the intensity of the interference signal received is dry
The intensity of the reception signal arrived than (Signal Interference Noise Ratio, SINR)/base station measurement is indicated
(Received Signal Strength Indicatior, RSSI) and the target SINR/RSSI of base station side are compared generation
TPC command, target SINR/RSSI is generally also changeless.
The corresponding initial open loop power control parameter of open Loop Power control, close-loop power control pair in PUCCH Power Controls
The target SINR/RSSI answered is changeless so that the initial p UCCH transmitting work(of part terminal in same PUCCH domains
The PUCCH transmission powers of terminal of the rate with currently having been enter into close-loop power control differ larger, or due in PUCCH closed loops
The difference of the different terminal room movement velocitys of Power Control, causes the PUCCH receiving powers of terminal room to differ larger.Due to end
Power difference between end is bigger, and energy aliasing is more serious so that base station receiving terminal is on same PUCCH domains are separated
The difficulty of different terminals is increased.
In summary, exist in existing LTE system base station to the separating difficulties of different terminals on same PUCCH domains compared with
Big technical problem.
The content of the invention
The embodiment of the present invention provides a kind of power regulating method and system, to solve base station of the prior art to same
The larger technical problem of the separating difficulty of different terminals on individual PUCCH domains.
In a first aspect, the embodiment of the present invention provides a kind of power regulating method, this method includes：
Base station obtains the end message for the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, and the end message is used
In the quantity and/or the movement velocity of each terminal of the terminal for indicating to be multiplexed on the PUCCH domains；
The base station adjusts the power control parameters in the PUCCH domains based on the end message, and the power control parameters are used for true
The ascending power for each terminal being multiplexed on the fixed PUCCH domains.
Optionally, the base station adjusts the power control parameters in the PUCCH domains based on the end message, including：
The base station determines terminal number state according to the quantity for the terminal being multiplexed on the PUCCH domains, and according to described every
The movement velocity of individual terminal determines motion state of terminal；Wherein, the terminal number state is used to indicate to be multiplexed on the PUCCH domains
Terminal quantity rank, the motion state of terminal is used for the movement velocity of terminal for indicating to be multiplexed on the PUCCH domains
Rank；
The base station adjusts the power control ginseng in the PUCCH domains according to the terminal number state and the motion state of terminal
Number, the power control parameters include open loop power control parameter and closed-loop power control parameter.
Optionally, the base station adjusts the PUCCH domains according to the terminal number state and the motion state of terminal
Power control parameters, including：
The base station judges whether the terminal number state is default terminal number state, and the motion state of terminal whether
For predetermined movement state；Wherein, the quantity of terminal of the default terminal number state for showing to be multiplexed on the PUCCH domains is big
In equal to predetermined number threshold value, the default motion state of terminal is for the maximum for the terminal for showing to be multiplexed on the PUCCH domains
Movement velocity is more than or equal to pre-set velocity threshold value；
If the terminal number state is the default terminal number state, or the motion state of terminal is the predetermined movement
State, then adjust the power control parameters in the PUCCH domains.
Optionally, if the terminal number state is the default terminal number state, or the motion state of terminal is described
Predetermined movement state, then adjust the power control parameters in the PUCCH domains, including：
If the terminal number state is the default terminal number state, and the motion state of terminal is the predetermined movement
State, then the base station determine the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control shape
Maximum ascending power and minimum ascending power in the ascending power of all terminals of state；
The open loop power control parameter adjustment is the average uplink power by the base station, and by the closed-loop power control parameter
Parameter area be adjusted to the first parameter area；Wherein, first parameter area by the maximum ascending power with it is described most
Small ascending power is determined.
Optionally, if the terminal number state is the default terminal number state, or the motion state of terminal is described
Predetermined movement state, adjusts the power control parameters in the PUCCH domains, including：
If the terminal number state is default terminal number state, and the motion state of terminal is not predetermined movement state,
If or the terminal number state is not the default terminal number state, and the motion state of terminal is the predetermined movement shape
State, the base station determines the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control state
Maximum ascending power and minimum ascending power in the ascending power of all terminals；
The open loop power control parameter adjustment is the average uplink power by the base station, and by the closed-loop power control parameter
Parameter area be adjusted to the second parameter area；Wherein, second parameter area by the maximum ascending power with it is described most
Small ascending power is determined, and maximum of the maximum more than first parameter area of second parameter area, and/or institute
The minimum value for stating the second parameter area is less than the minimum value of first parameter area.
Optionally, after the power control parameters that the base station adjusts the PUCCH domains based on the end message, the side
Method also includes：
The base station sends the power control parameters to each terminal；
The base station separation have adjusted any two terminal of the ascending power based on the power control parameters；Wherein, institute
The power difference stated between the ascending power of any two terminal is in the range of preset difference value.
Second aspect, the embodiment of the present invention provides a kind of power adjustment system, and the system includes base station and terminal：
The base station, the end message for obtaining the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, the end
Client information is for the quantity and/or the movement velocity of each terminal of the terminal for indicating to be multiplexed on the PUCCH domains；And,
The power control parameters in the PUCCH domains are adjusted based on the end message, the power control parameters are described for determining
The ascending power for each terminal being multiplexed on PUCCH domains.
Optionally, the base station is used for：Terminal number state is determined according to the quantity for the terminal being multiplexed on the PUCCH domains,
And motion state of terminal is determined according to the movement velocity of each terminal；Wherein, the terminal number state is described for indicating
The rank of the quantity for the terminal being multiplexed on PUCCH domains, the motion state of terminal is used for the end for indicating to be multiplexed on the PUCCH domains
The rank of the movement velocity at end；
According to the terminal number state and the motion state of terminal, the power control parameters in the PUCCH domains, the work(are adjusted
Controlling parameter includes open loop power control parameter and closed-loop power control parameter.
Optionally, the base station is used for：
Whether judge the terminal number state is default terminal number state, and whether the motion state of terminal is default fortune
Dynamic state, obtains judged result；Wherein, the default terminal number state is used for the terminal for showing to be multiplexed on the PUCCH domains
Quantity is more than or equal to predetermined number threshold value, and the default motion state of terminal is used for the terminal for showing to be multiplexed on the PUCCH domains
Maximum movement speed be more than or equal to pre-set velocity threshold value；
If the terminal number state is the default terminal number state, or the motion state of terminal is the predetermined movement
State, then adjust the power control parameters in the PUCCH domains.
Optionally, the base station is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is the predetermined movement
State, then the base station determine the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control shape
Maximum ascending power and minimum ascending power in the ascending power of all terminals of state；
It is the average uplink power by the open loop power control parameter adjustment, and by the parameter model of the closed-loop power control parameter
Enclose and be adjusted to the first parameter area；Wherein, first parameter area is by the maximum ascending power and the minimum up work(
Rate is determined.
Optionally, the base station is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is not the default fortune
Dynamic state, if or the terminal number state is not the default terminal number state, and the motion state of terminal is described pre-
If motion state, the average uplink power of all terminals being multiplexed on the PUCCH domains is determined, and in closed-loop power control state
Maximum ascending power and minimum ascending power in the ascending power of all terminals；
It is the average uplink power by the open loop power control parameter adjustment, and by the parameter model of the closed-loop power control parameter
Enclose and be adjusted to the second parameter area；Wherein, second parameter area is by the maximum ascending power and the minimum up work(
Rate is determined, and maximum of the maximum more than first parameter area of second parameter area, and/or second ginseng
The minimum value of number scope is less than the minimum value of first parameter area.
Optionally, the base station is used for：
After the power control parameters in the PUCCH domains are adjusted based on the end message, institute is sent to each terminal
State power control parameters；
Separation have adjusted any two terminal of the ascending power based on the power control parameters；Wherein, described any two
Power difference between the ascending power of individual terminal is in the range of preset difference value.
The third aspect, the embodiment of the present invention provides a kind of computer installation, and described device includes processor, the processor
The step of for performing the method realized during the computer program stored in memory in first aspect.
Fourth aspect, the embodiment of the present invention provides a kind of computer-readable recording medium, and be stored with computer program, described
The step of method in first aspect is realized when computer program is executed by processor.
One or more of above-mentioned technical proposal technical scheme, has the following technical effect that or advantage：
Base station is by obtaining Physical Uplink Control Channel in a kind of power regulating method of offer of the embodiment of the present invention, this method
The end message for the terminal being multiplexed on PUCCH domains, the end message be used to indicating the quantity of terminal being multiplexed on PUCCH domains and/
Or the movement velocity of each terminal, and then, base station adjusts multiple on PUCCH domains for determining on PUCCH domains according to end message
The power control parameters of the ascending power of each terminal so that have adjusted any two terminal of ascending power ascending power it
Between power difference be in preset difference value in the range of so that base station can to power difference be in preset difference value in the range of
Any two terminal makes a distinction, and solves base station present in prior art and different terminals on same PUCCH domains are divided
The technical problem larger from difficulty, improves the accuracy of base station separate terminal, and improves terminal uplink control channel transmission
Reliability.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, accompanying drawing described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the schematic flow sheet of power regulating method in the embodiment of the present invention；
Fig. 2 is the schematic diagram in PUCCH domains in the embodiment of the present invention；
Fig. 3 is the schematic diagram of power adjustment system in the embodiment of the present invention；
Fig. 4 is the schematic diagram of Computer device of the embodiment of the present invention.
Embodiment
In order that the purpose, technical scheme and advantage of the embodiment of the present invention are clearer, below in conjunction with present invention implementation
Accompanying drawing in example, the technical scheme in the embodiment of the present invention is clearly and completely described.
Hereinafter, the part term in the embodiment of the present invention is explained first, in order to those skilled in the art
Understand.
Terminal, refers to the equipment for providing a user voice and/or data connectivity, for example, can include having wireless connection
The portable equipment of function or the processing equipment for being connected to radio modem.The terminal can be through wireless access network
(Radio Access Network, RAN) is communicated with core net, and voice and/or data are exchanged with RAN.Terminal can be wrapped
Include wireless terminal device, mobile terminal device, subscri er unit (Subscriber Unit), subscriber station (Subscriber
Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), access point
(Access Point, AP), RTU (Remote Terminal), access terminal equipment (Access
Terminal), subscriber terminal equipment (User Terminal), user agent (User Agent) or subscriber's installation (User
Device) etc..For example, mobile phone (or being " honeycomb " phone) can be included, the computer with mobile terminal device, just
Take formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device.For example, PCS (Personal
Communication Service, PCS) phone, wireless phone, Session initiation Protocol (SIP) phone, WLL
(Wireless Local Loop, WLL) stands, personal digital assistant (Personal Digital Assistant, PDA), intelligence
The equipment such as Wearable.
Base station, refers in access network on interface in the air by setting that one or more cells communicate with wireless terminal device
It is standby.During base station can be Long Term Evolution (Long Term Evolution, LTE) system, or base station can also be the LTE of evolution
Evolved base station (evolutional Node B, eNB or e-NodeB) in system (LTE-Advanced, LTE-A), this hair
Bright embodiment is not especially limited to this.
In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, represents there may be
Three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.Separately
Outside, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Fig. 1 is referred to, the embodiment of the present invention provides a kind of power regulating method, and the process of the power regulating method can be retouched
State as follows：
S100：Base station obtains the end message for the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, the terminal letter
Cease the quantity and/or the movement velocity of each terminal of the terminal for indicating to be multiplexed on the PUCCH domains；
S200：The base station adjusts the power control parameters in the PUCCH domains based on the end message, and the power control parameters are used
In it is determined that the ascending power for each terminal being multiplexed on the PUCCH domains.
In actual applications, it can be seen from agreement, PUCCH can be transmitted eventually on all sub-frame of uplink in addition to special subframe
Client information.As a rule, PUCCH channel resources can be located at the two ends of system bandwidth.For example, Fig. 2 shows for the structure in PUCCH domains
It is intended to, as shown in Figure 2, a PUCCH domain can be by a pair of resource block (Resource in two time slots of a sub- frame in
Block, RB) constitute, such structure can reduce the resource needed for control signal transmission as far as possible, and utilize frequency diversity,
Can be by while realizing UE multiplexing using frequency domain code division multiplexing and time domain code division multiplexing in PUCCH domains.Received in base station
End can distinguish the different terminals on the different terminals in same domain, same PUCCH domains by orthogonal code division multiplexing sequence
The pulse value on different positions is shown as in time domain impulse response.
In the embodiment of the present invention, base station can obtain the end message for the terminal being multiplexed on PUCCH domains in real time.Wherein, eventually
Client information can be used for characterizing the number of terminals that the terminal being multiplexed on PUCCH domains is multiplexed in current multiplexed situation, such as PUCCH domains
Amount, movement velocity of each terminal etc..In addition, end message also can indicate that the essential information of terminal, include the IP of terminal
Running status of location and terminal etc..
In actual applications, the terminal quantity for the terminal being multiplexed on PUCCH domains can be that base station is obtained by periodic statistics
.Also, because the movement velocity for the different terminals being multiplexed on same PUCCH domains may be also different, therefore, base station is obtained
The movement velocity indicated by end message taken can refer to the movement velocity of each terminal in PUCCH domains.
In S200, base station can adjust the power control parameters in PUCCH domains, power control parameters according to the end message obtained in S100
As power contorl parameters, can be used for the ascending power for adjusting terminal.Power control parameters can include open loop power control parameter and close
Ring power control parameters, wherein, open loop power control parameter can be used for confrontation large scale decline, and closed-loop power control parameter can be used for control eventually
The fluctuation range of the ascending power at end.
Optionally, after the power control parameters that base station adjusts PUCCH domains based on end message, this method can also include：
Base station sends power control parameters to each terminal；Base station separates any two terminal that ascending power is have adjusted based on power control parameters；
Wherein, the power difference between the ascending power of any two terminal is in the range of preset difference value.
In actual applications, base station can be adjusted according to the end message of acquisition to the power control parameters in PUCCH domains, so
The power control parameters after adjustment can be sent to terminal afterwards, so that terminal can adjust itself according to the power control parameters after adjustment
Ascending power, the ascending power can be uplink received power.
In the embodiment of the present invention, by adjusting ascending power, between the ascending power that any two terminal can be caused
Power difference is in the range of preset difference value, and the preset difference value scope can be used in base station side to end for being multiplexed on PUCCH domains
End is separated, that is to say, that base station can be in any in the range of preset difference value to the power difference between ascending power
The terminal of two multiplexings makes a distinction.
Such as, preset difference value scope is [5,10], if the power difference of the ascending power of two terminals is 6, this two
The terminal signaling of terminal can be separated in base station side, and if the power difference of the ascending power of two terminals be 4 or
11, then base station is possibly can not isolate the two terminals, may filter the terminal signaling that two terminals are sent.
Wherein, the setting of preset difference value scope can include but are not limited to following several ways：
Mode one, base station can be according to indexs such as the terminal quantity on current PUCCH domains, the movement velocitys of each terminal certainly
Dynamic adjustment preset difference value scope.
Mode two, because base station can be separated to the terminal being multiplexed in PUCCH domains, therefore, base station side can be according to not
Same channel circumstance, performance indications of base station end receiver etc. are set automatically to preset difference value scope.
Mode three, preset difference value scope can be according to the actual self-defined setting of situation progress by user.Such as, use
The end message that family is obtained by base station recognized after the terminal situation being multiplexed on current PUCCH domains, can be with self-defined base station side
The preset difference value scope of the terminal of separation multiplexing.
Certainly, it can set pre- by the way of the one or more in aforesaid way are combined in actual applications
If difference range, the embodiment of the present invention is not restricted.
Optionally, base station is when adjusting the power control parameters in PUCCH domains according to the end message of acquisition, and base station can basis
The quantity for the terminal being multiplexed on PUCCH domains determines terminal number state, and determines that terminal is moved according to the movement velocity of each terminal
State；Wherein, terminal number state is used to indicating the rank for the quantity of terminal being multiplexed on PUCCH domains, and motion state of terminal is used for
Indicate the rank of the movement velocity for the terminal being multiplexed on PUCCH domains.
Wherein, the rank of the movement velocity for the terminal being multiplexed on PUCCH domains can be maximum movement speed on PUCCH domains
Rank, or or PUCCH domains on the rank of average movement velocity of terminal that is multiplexed etc..
In actual applications, base station can set thresholding to determine the terminal number state on PUCCH domains, and terminal number state
The rank of the quantity for the terminal being multiplexed on indicated PUCCH domains can be related to the thresholding that base station is set, and such as base station is only set
One thresholding, then the rank of the quantity of terminal can be divided into it is high and low, or, if base station is provided with two thresholdings, terminal
Quantity rank can be divided into it is high, neutralize it is low.
Such as, if base station sets a thresholding, such as 20, if on the PUCCH domains indicated in the end message that base station is obtained
The terminal quantity of multiplexing is 18, then it is considered that terminal quantity is less, and it is low to determine terminal number state, if being indicated in end message
PUCCH domains on the terminal quantity that is multiplexed be 22, then it is considered that terminal quantity is more, it is height to determine terminal number state.
Or, base station can also set multiple thresholdings for being used to determine terminal number state, such as two thresholdings：Thresholding 1 and door
Limit 2, and value of the value less than thresholding 2 of thresholding 1.At this moment, can if the terminal quantity being multiplexed on PUCCH domains is less than or equal to thresholding 1
To determine terminal number state to be low；If the terminal quantity being multiplexed on PUCCH domains is more than thresholding 2, terminal number state can be determined
For height；And remaining situation, i.e. terminal quantity be located between thresholding 1 and thresholding 2 when, then in can determining that terminal number state is.
It should be noted that base station can set 3 even more thresholdings according to actual conditions, to determine number of terminals shape
State, the embodiment of the present invention is not restricted.
Likewise, base station can determine the movement velocity of each terminal on PUCCH domains according to the end message of acquisition, can
Motion state of terminal is determined with the size of the movement velocity according to each terminal, such as, if multiplexing all on PUCCH domains
The movement velocity of terminal, which is respectively less than, is equal to a threshold value, then it is considered that the motion state of terminal of multiplexing is low speed；If there is one
Terminal movement velocity is more than threshold value, then it is considered that the motion state of terminal of multiplexing is at a high speed.
Or, in actual applications, movement velocity maximum in the movement velocity of the terminal of all multiplexings in PUCCH domains
Less than pre-set velocity value, then it is considered that motion state of terminal is low speed；If the minimum movement speed of all terminals in PUCCH domains
Be more than pre-set velocity value, then it is considered that motion state of terminal at a high speed.
Or, base station can also determine PUCCH domains according to the movement velocity and terminal quantity of each terminal in end message
The average movement velocity of upper terminal, if the average movement velocity is more than a pre-set velocity value, it is considered that motion state of terminal
For at a high speed, if average movement velocity is less than a pre-set velocity value, can consider motion state of terminal is low speed.
It should be noted that the setting of above-mentioned threshold value or pre-set velocity value can be held according to actual conditions, such as channel
Amount etc., is set.Furthermore, the either setting of terminal number state or motion state of terminal can pass through a kind of above-mentioned mode
Or various ways are combined and determined, the embodiment of the present invention is not specifically limited.
Then, base station can be based on terminal number state and motion state of terminal, the power control parameters in adjustment PUCCH domains, the work(
Controlling parameter includes open loop power control parameter and closed-loop power control parameter.Such as, adjustment of the base station to power control parameters can with but be not limited only to
Several situations below：Base station according to terminal number state and motion state of terminal, can only adjust the open loop power control ginseng in PUCCH domains
Number；Base station can only adjust the closed-loop power control parameter in PUCCH domains according to terminal number state and motion state of terminal；Base station can be with
According to terminal number state or motion state of terminal, while adjusting the open loop power control parameter and closed-loop power control parameter in PUCCH domains etc..Tool
The adjustment process of body can be described in detail hereinafter, and the embodiment of the present invention is not repeated.
In an alternative embodiment of the invention, base station is determining terminal number state according to terminal quantity, and according to the fortune of terminal
When dynamic speed determines motion state of terminal, base station can determine the first quantitative range residing for terminal quantity, according to quantitative range
With the corresponding relation of terminal number state, the number of terminals shape that the corresponding first terminal number state of the first quantitative range is terminal is determined
State；
Base station determines the First Speed scope residing for movement velocity, is closed according to velocity interval is corresponding with motion state of terminal
System, determines the motion state of terminal that the corresponding first terminal motion state of First Speed scope is terminal.
As an example it is assumed that base station can preset multiple quantitative ranges, and each quantitative range correspondence is a kind of eventually
Number state is held, correspondingly, base station can also preset multiple velocity intervals, a kind of each terminal motion shape of velocity interval correspondence
State.So, base station is determined from the end message of acquisition after the movement velocity of terminal quantity and terminal, it may be determined that number of terminals
The first residing quantitative range of amount, so that it is determined that terminal number state, and base station can also be by corresponding to the movement velocitys of terminal
Velocity interval, so that it is determined that the motion state of terminal of terminal.
In the embodiment of the present invention, base station can also set corresponding power control parameters for each quantitative range, and be each speed
Spend scope and corresponding power control parameters are set, subsequent base stations can be according to the foregoing quantitative range determined and velocity interval, correspondence
Adjust the power control parameters in PUCCH domains.
Optionally, base station is according to terminal number state and motion state of terminal, during the power control parameters in adjustment PUCCH domains, base
Station may determine that whether terminal number state is default terminal number state, and whether motion state of terminal is predetermined movement state, its
In, default terminal number state may indicate that the quantity for the terminal being multiplexed on PUCCH domains is more than or equal to predetermined number threshold value, and preset
Motion state of terminal may indicate that the maximum movement speed for the terminal being multiplexed on PUCCH domains is more than or equal to pre-set velocity threshold value, and
Default terminal number state can include the state such as high, medium and low, and default motion state of terminal can be high speed, middling speed, low speed etc..
For example, base station can set predetermined number threshold value to be 18, then terminal can be expressed as by presetting terminal number state
Quantity is more than or equal to terminal number state when 18, and terminal number state at this moment can be height；Base station can set pre-set velocity threshold
It is worth for 20, then the maximum movement speed of terminal that presetting motion state of terminal can be expressed as being multiplexed on PUCCH domains is more than or equal to
Motion state of terminal when 20, motion state of terminal at this moment can be at a high speed.
Then, if terminal number state is default terminal number state, or motion state of terminal is predetermined movement state, then base station
The power control parameters in PUCCH domains can be adjusted.
Optionally, if terminal number state is default terminal number state, or motion state of terminal is predetermined movement state, then base
The power control parameters in PUCCH domains can be adjusted by standing, and can be divided into but be not limited only to following several situation progress：
Situation one：If terminal number state is default terminal number state, and motion state of terminal is predetermined movement state, then base
The average uplink power of terminal can be determined by standing, and can determine to be in closed-loop power control state in the terminal being multiplexed on PUCCH domains
All terminals ascending power in maximum ascending power and minimum ascending power；
Open loop power control parameter adjustment can be average uplink power by base station, and by the corresponding parameter model of closed-loop power control parameter
Enclose and be adjusted to the first parameter area；Wherein, the first parameter area is determined by maximum ascending power with minimum ascending power.
In the embodiment of the present invention, if terminal number state is default terminal number state, and motion state of terminal is predetermined movement
State, then can be adjusted with divided ring power control parameters and closed-loop power control parameter.
Wherein, if terminal number state and motion state of terminal are satisfied by above-mentioned preparatory condition, base station can be determined
The average uplink power of terminal on PUCCH domains, the average uplink power can be by the terminal quantity on PUCCH domains and each terminal
Ascending power determine.Such as, base station can count the PUCCH receptions for all terminals being currently multiplexed on PUCCH domains with the cycle
Power and terminal quantity, then calculate the arithmetic mean of instantaneous value of PUCCH receiving powers, and the arithmetic mean of instantaneous value can be above-mentioned described
Average uplink power.
In actual applications, base station can obtain the up work(of all terminals in closed-loop power control state in terminal in real time
Rate, it is then determined that going out maximum ascending power therein and minimum ascending power, base station can be according to maximum ascending power and minimum
Ascending power determines parameter area.Such as, maximum ascending power is 40, and minimum ascending power is 5, then the parameter that base station is determined
Scope can be [5,40], or (5,40], or [5,40], you can with the value of maximum ascending power and minimum ascending power
Value as parameter area two critical values；Or, base station determine parameter area can also be [4,45], or (3,
42], or [2,48) etc., i.e., the parameter area that base station is determined can include maximum ascending power and minimum ascending power.
Then, open loop power control parameter adjustment can be average uplink power by base station, and by the corresponding ginseng of closed-loop power control parameter
Number scope is adjusted to the parameter area determined by maximum ascending power and minimum ascending power through aforesaid way, such as [5,
40]。
If situation two, terminal number state are default terminal number state, and motion state of terminal is not predetermined movement state, then
Base station can be determined in the average uplink power of all terminals, and the ascending power of all terminals in closed-loop power control state
Maximum ascending power and minimum ascending power；
Then open loop power control parameter adjustment is average uplink power by base station, and the parameter area of closed-loop power control parameter is adjusted
Whole is the second parameter area；Wherein, the second parameter area is determined by maximum ascending power with minimum ascending power, and the second parameter
The maximum of scope is more than the maximum of the first parameter area, and/or the minimum value of the second parameter area is less than the first parameter model
The minimum value enclosed.
In situation two, condition one is sympathized with average uplink power, the determination of maximum ascending power and minimum ascending power, here
Repeat no more.
And it should be noted that the second parameter area determined in situation two is different from the parameter model in situation one
Enclose.
For example, equally using maximum ascending power as 40, minimum ascending power be 5 exemplified by.In situation one, base station is true
Fixed parameter area can be [5,40], or (5,40], or [5,40] etc., and due in situation two terminal number state be pre-
If terminal number state, and motion state of terminal is not predetermined movement state, at this moment, the closed-loop power control parameter correspondence that base station is determined
The second parameter area can be more than a kind of the first parameter area of situation.Such as, the second parameter area correspondence that base station is determined
In the first parameter area of situation one can be [4,41], or (4,41], or [4,41] etc.；Or, if base in situation one
Stand determine the first parameter area be [4,45], or (3,42], or [2,48) etc., then in situation two base station determine parameter
[3,46] are may range from, either (Isosorbide-5-Nitrae 8] or [3,58) etc..That is the second parameter area can also by maximum ascending power with
Minimum ascending power is determined, and maximum of the maximum more than the first parameter area of the second parameter area, and/or the second parameter
The minimum value of scope is less than the minimum value of the first parameter area.
If situation three, terminal number state are not default terminal number state, and motion state of terminal is predetermined movement state, base
Stand determine in the average uplink power of all terminals, and the ascending power of all terminals in closed-loop power control state maximum on
Row power and minimum ascending power；
Open loop power control parameter adjustment is average uplink power, and the parameter area of closed-loop power control parameter is adjusted to by base station
Second parameter area；Wherein, the second parameter area is determined by maximum ascending power with minimum ascending power, and the second parameter area
Maximum be more than the first parameter area maximum, and/or the second parameter area minimum value be less than the first parameter model
The minimum value enclosed.
In situation three, base station determines open loop power control parameter, and corresponding second parameter area of closed-loop power control parameter mistake
Journey is with situation two, and the embodiment of the present invention will not be repeated here.
For the clearer above-mentioned three kinds of situations of description, above-mentioned three kinds of situations are illustrated respectively with reference to table 1.
Table 1
In table 1, Signal to Interference plus Noise Ratio (Signal Interference Noise Ratio, SINR), received signal strength indicator
(Received Signal Strength Indicator, RSSI)；P0_PUCCHThe open loop power control parameter that can be configured for base station
Initial value；Closed-loop power control parameter can be RSSI_DOWN and RSSI_UP (or SINR_DOWN and SINR_UP).
Configuration 1 in table 1 can be expressed as (RSSI_DOWN ', RSSI_UP ') (or can for (SINR_DOWN ',
SINR_UP’))；It (or can be (SINR_DOWN ", SINR_ that configuration 2, which can be expressed as (RSSI_DOWN ", RSSI_UP "),
UP ")), wherein, magnitude relationship can be expressed as RSSI_DOWN<RSSI_DOWN’<RSSI_DOWN”<RSSI_UP”<RSSI_
UP’<RSSI_UP。
Or, SINR_DOWN<SINR_DOWN’<SINR_DOWN”<SINR_UP”<SINR_UP’<SINR_UP.
For example, when motion state of terminal is high speed, regardless of terminal number state, base station can divided ring power control ginseng
Number, and the parameter area of closed-loop power control parameter are adjusted；Or, when terminal number state for it is high when, no matter motion state of terminal
How, base station can also divided ring power control parameters, and the parameter area of closed-loop power control parameter is adjusted；That is motion state of terminal
With terminal number state any state for it is high when, base station can be adjusted correspondingly to power control parameters.
Embodiment two
Fig. 3 is referred to, based on same inventive concept, the embodiment of the present invention also provides one kind can be using the adjustment of above-mentioned power
The power adjustment system 10 of method.
Power adjustment system 10 includes：Base station 20 and terminal 30, base station 20 are used to obtain Physical Uplink Control Channel PUCCH
The end message for the terminal being multiplexed on domain, the end message is used to indicate terminal quantity on the PUCCH domains and/or each
The movement velocity of terminal；And,
The power control parameters in the PUCCH domains are adjusted based on the end message, the power control parameters are described for determining
The ascending power for each terminal being multiplexed on PUCCH domains.
Optionally, the base station 20 is used for：Number of terminals shape is determined according to the quantity for the terminal being multiplexed on the PUCCH domains
State, and motion state of terminal is determined according to the movement velocity of each terminal；Wherein, the terminal number state is used to indicate institute
The rank of the quantity for the terminal being multiplexed on PUCCH domains is stated, the motion state of terminal is used to indicate what is be multiplexed on the PUCCH domains
The rank of the movement velocity of terminal；
According to the terminal number state and the motion state of terminal, the power control parameters in the PUCCH domains, the work(are adjusted
Controlling parameter includes open loop power control parameter and closed-loop power control parameter.
Optionally, the base station 20 is used for：
Whether judge the terminal number state is default terminal number state, and whether the motion state of terminal is default fortune
Dynamic state, obtains judged result；Wherein, the default terminal number state is used for the terminal for showing to be multiplexed on the PUCCH domains
Quantity is more than or equal to predetermined number threshold value, and the default motion state of terminal is used for the terminal for showing to be multiplexed on the PUCCH domains
Maximum movement speed be more than or equal to pre-set velocity threshold value；
If the terminal number state is the default terminal number state, or the motion state of terminal is the predetermined movement
State, then adjust the power control parameters in the PUCCH domains.
Optionally, the base station 20 is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is the predetermined movement
State, then the base station determine the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control shape
Maximum ascending power and minimum ascending power in the ascending power of all terminals of state；
It is the average uplink power by the open loop power control parameter adjustment, and by the parameter model of the closed-loop power control parameter
Enclose and be adjusted to the first parameter area；Wherein, first parameter area is by the maximum ascending power and the minimum up work(
Rate is determined.
Optionally, the base station 20 is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is not the default fortune
Dynamic state, if or the terminal number state is not the default terminal number state, and the motion state of terminal is described pre-
If motion state, the average uplink power of all terminals being multiplexed on the PUCCH domains is determined, and in closed-loop power control state
Maximum ascending power and minimum ascending power in the ascending power of all terminals；
It is the average uplink power by the open loop power control parameter adjustment, and by the parameter model of the closed-loop power control parameter
Enclose and be adjusted to the second parameter area；Wherein, second parameter area is by the maximum ascending power and the minimum up work(
Rate is determined, and maximum of the maximum more than first parameter area of second parameter area, and/or second ginseng
The minimum value of number scope is less than the minimum value of first parameter area.
Optionally, base station 20 is used for：
After the power control parameters in the PUCCH domains are adjusted based on the end message, institute is sent to each terminal
State power control parameters；
Separation have adjusted any two terminal of the ascending power based on the power control parameters；Wherein, described any two
Power difference between the ascending power of individual terminal is in the range of preset difference value.
Above-mentioned power adjustment system is carried under the same idea of the power regulating method provided with first aspect present invention
Go out, therefore the various change mode and specific embodiment of the above method in the embodiment of the present invention are equally applicable to the present invention in fact
Apply a power adjustment system, thus it is succinct for specification, it will not be described in detail herein.
Embodiment three
A kind of computer installation is also provided in the embodiment of the present invention, be refer to shown in Fig. 4, the computer installation includes processing
Device 401 and memory 402, wherein, processor 401 is used to realize this hair when performing the computer program stored in memory 402
There is provided in bright embodiment for power regulating method the step of.
Optionally, processor 401 can be specifically central processing unit, ASIC (Application
Specific Integrated Circuit, ASIC), can be one or more integrated circuits performed for control program,
Can be the hardware circuit developed using field programmable gate array (Field Programmable Gate Array, FPGA),
It can be BBP.
Optionally, processor 401 can include at least one process cores.
Optionally, electronic equipment also includes memory 402, and memory 402 can include read-only storage (Read Only
Memory, ROM), random access memory (Random Access Memory, RAM) and magnetic disk storage.Memory 402 is used
The required data when operation of processor 401 is stored.The quantity of memory 402 is one or more.
Example IV
The embodiment of the present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program, the meter
Realized when calculation machine program is executed by processor such as the step of power regulating method provided in an embodiment of the present invention.
In embodiments of the present invention, it should be understood that disclosed power adjustment system and method, can be by others side
Formula is realized.For example, apparatus embodiments described above are only schematical, for example, the division of the unit or unit, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical of equipment or unit by some interfaces
Letter connection, can be electrical or other forms.
Each functional unit in embodiments of the present invention can be integrated in a processing unit, or unit also may be used
To be independent physical module.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, the technical scheme of the embodiment of the present invention
All or part can be embodied in the form of software product, the computer software product is stored in a storage medium
In, including some instructions can be personal computer to cause a computer equipment, such as, server, or network are set
It is standby etc., or processor (Processor) performs all or part of step of each embodiment methods described of the invention.And it is foregoing
Storage medium includes：General serial bus USB (Universal Serial Bus flash drive, USB), movement are hard
Disk, read-only storage (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM),
Magnetic disc or CD etc. are various can be with the medium of store program codes.
Described above, above example is only described in detail to the technical scheme to the application, but implements above
The explanation of example is only intended to help the method for understanding the embodiment of the present invention, should not be construed as the limitation to the embodiment of the present invention.This
The change or replacement that those skilled in the art can readily occur in, should all cover the embodiment of the present invention protection domain it
It is interior.
Claims (14)
1. a kind of power regulating method, it is characterised in that methods described includes：
Base station obtains the end message for the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, and the end message is used to refer to
Show the quantity for the terminal being multiplexed on the PUCCH domains and/or the movement velocity of each terminal；
The base station adjusts the power control parameters in the PUCCH domains based on the end message, and the power control parameters are used to determine institute
State the ascending power for each terminal being multiplexed on PUCCH domains.
2. the method as described in claim 1, it is characterised in that the base station is based on the end message and adjusts the PUCCH
The power control parameters in domain, including：
The base station determines terminal number state according to the quantity for the terminal being multiplexed on the PUCCH domains, and according to each end
The movement velocity at end determines motion state of terminal；Wherein, the terminal number state is used for the end for indicating to be multiplexed on the PUCCH domains
The rank of the quantity at end, the motion state of terminal is used to indicating the level for the movement velocity of terminal being multiplexed on the PUCCH domains
Not；
The base station adjusts the power control parameters in the PUCCH domains, institute according to the terminal number state and the motion state of terminal
Stating power control parameters includes open loop power control parameter and closed-loop power control parameter.
3. method as claimed in claim 2, it is characterised in that transported according to the terminal number state and the terminal base station
Dynamic state, adjusts the power control parameters in the PUCCH domains, including：
The base station judges that whether the terminal number state is default terminal number state, and whether the motion state of terminal is pre-
If motion state；Wherein, the default terminal number state is used to show that the quantity of terminal being multiplexed on the PUCCH domains is more than
In predetermined number threshold value, the default motion state of terminal is for the largest motion for the terminal for showing to be multiplexed on the PUCCH domains
Speed is more than or equal to pre-set velocity threshold value；
If the terminal number state is the default terminal number state, or the motion state of terminal is the predetermined movement shape
State, then adjust the power control parameters in the PUCCH domains.
4. method as claimed in claim 3, it is characterised in that if the terminal number state is the default terminal number state,
Or the motion state of terminal is the predetermined movement state, then adjusts the power control parameters in the PUCCH domains, including：
If the terminal number state is the default terminal number state, and the motion state of terminal is the predetermined movement shape
State, then the base station determine the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control state
All terminals ascending power in maximum ascending power and minimum ascending power；
The open loop power control parameter adjustment is the average uplink power by the base station, and by the ginseng of the closed-loop power control parameter
Number scope is adjusted to the first parameter area；Wherein, first parameter area is on the maximum ascending power and the minimum
Row power is determined.
5. method as claimed in claim 3, it is characterised in that if the terminal number state is the default terminal number state,
Or the motion state of terminal is the predetermined movement state, the power control parameters in the PUCCH domains are adjusted, including：
If the terminal number state is the default terminal number state, and the motion state of terminal is not the predetermined movement shape
State, if or the terminal number state be the default terminal number state, and the motion state of terminal be the default fortune
Dynamic state, the base station determines the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control shape
Maximum ascending power and minimum ascending power in the ascending power of all terminals of state；
The open loop power control parameter adjustment is the average uplink power by the base station, and by the ginseng of the closed-loop power control parameter
Number scope is adjusted to the second parameter area；Wherein, second parameter area is on the maximum ascending power and the minimum
Row power determines, and the maximum of second parameter area is more than the maximum of first parameter area, and/or described the
The minimum value of two parameter areas is less than the minimum value of first parameter area.
6. the method as described in any claim in claim 1-5, it is characterised in that be based on the end message in the base station
After the power control parameters for adjusting the PUCCH domains, methods described also includes：
The base station sends the power control parameters to each terminal；
The base station separation have adjusted any two terminal of the ascending power based on the power control parameters；Wherein, described
Power difference between the ascending power for two terminals of anticipating is in the range of preset difference value.
7. a kind of power adjustment system, it is characterised in that the system includes base station and terminal,
The base station, the end message for obtaining the terminal being multiplexed on Physical Uplink Control Channel PUCCH domains, the terminal letter
Cease the quantity and/or the movement velocity of each terminal of the terminal for indicating to be multiplexed on the PUCCH domains；And,
The power control parameters in the PUCCH domains are adjusted based on the end message, the power control parameters are used to determine the PUCCH domains
The ascending power of each terminal of upper multiplexing.
8. system as claimed in claim 7, it is characterised in that the base station is used for：
Terminal number state is determined according to the quantity for the terminal being multiplexed on the PUCCH domains, and according to the motion of each terminal
Speed determines motion state of terminal；Wherein, the terminal number state is for the quantity for the terminal for indicating to be multiplexed on the PUCCH domains
Rank, the motion state of terminal is used to indicating the rank for the movement velocity of terminal being multiplexed on the PUCCH domains；
According to the terminal number state and the motion state of terminal, the power control parameters in the PUCCH domains, the power control ginseng are adjusted
Number includes open loop power control parameter and closed-loop power control parameter.
9. system as claimed in claim 8, it is characterised in that the base station is used for：
Whether judge the terminal number state is default terminal number state, and whether the motion state of terminal is predetermined movement shape
State, obtains judged result；Wherein, the default terminal number state is for the quantity for the terminal for showing to be multiplexed on the PUCCH domains
More than or equal to predetermined number threshold value, the default motion state of terminal is used to show the terminal being multiplexed on the PUCCH domains most
Big movement velocity is more than or equal to pre-set velocity threshold value；
If the terminal number state is the default terminal number state, or the motion state of terminal is the predetermined movement shape
State, then adjust the power control parameters in the PUCCH domains.
10. system as claimed in claim 9, it is characterised in that the base station is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is the predetermined movement shape
State, then the base station determine the average uplink power for all terminals being multiplexed on the PUCCH domains, and in closed-loop power control state
All terminals ascending power in maximum ascending power and minimum ascending power；
It is the average uplink power by the open loop power control parameter adjustment, and the parameter area of the closed-loop power control parameter is adjusted
Whole is the first parameter area；Wherein, first parameter area is true by the maximum ascending power and the minimum ascending power
It is fixed.
11. system as claimed in claim 9, it is characterised in that the base station is used for：
If the terminal number state is the default terminal number state, and the motion state of terminal is not the predetermined movement shape
State, if or the terminal number state be the default terminal number state, and the motion state of terminal be the default fortune
Dynamic state, determines the average uplink power of all terminals being multiplexed on the PUCCH domains, and all in closed-loop power control state
Maximum ascending power and minimum ascending power in the ascending power of terminal；
It is the average uplink power by the open loop power control parameter adjustment, and the parameter area of the closed-loop power control parameter is adjusted
Whole is the second parameter area；Wherein, second parameter area is true by the maximum ascending power and the minimum ascending power
It is fixed, and maximum of the maximum more than first parameter area of second parameter area, and/or the second parameter model
The minimum value enclosed is less than the minimum value of first parameter area.
12. the system as described in any claim in claim 7-11, it is characterised in that the base station is used for：
After the power control parameters in the PUCCH domains are adjusted based on the end message, the work(is sent to each terminal
Control parameter；
Separation have adjusted any two terminal of the ascending power based on the power control parameters；Wherein, any two is whole
Power difference between the ascending power at end is in the range of preset difference value.
13. a kind of computer installation, it is characterised in that described device includes processor, the processor is used to perform memory
Realized during the computer program of middle storage as any one of claim 1-6 the step of method.
14. a kind of computer-readable recording medium, be stored with computer program, it is characterised in that the computer program is located
Manage and realized when device is performed as any one of claim 1-6 the step of method.
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| CN201710552419.1A CN107197511B (en) | 2017-07-07 | 2017-07-07 | Power adjustment method and system |
| PCT/CN2018/093409 WO2019007256A1 (en) | 2017-07-07 | 2018-06-28 | Power adjustment method and system |
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| WO2019007256A1 (en) * | 2017-07-07 | 2019-01-10 | 京信通信***（中国）有限公司 | Power adjustment method and system |
| WO2020034608A1 (en) | 2019-02-02 | 2020-02-20 | Zte Corporation | Method for ue power saving |
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| BE1026955B1 (en) * | 2019-06-11 | 2020-08-04 | Synapharm Ind Synthesis | Manufacturing process of magnesium N-acetyl-taurinate |
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