CN102316568A - Closed loop power control processing method and base station - Google Patents
Closed loop power control processing method and base station Download PDFInfo
- Publication number
- CN102316568A CN102316568A CN2010102250959A CN201010225095A CN102316568A CN 102316568 A CN102316568 A CN 102316568A CN 2010102250959 A CN2010102250959 A CN 2010102250959A CN 201010225095 A CN201010225095 A CN 201010225095A CN 102316568 A CN102316568 A CN 102316568A
- Authority
- CN
- China
- Prior art keywords
- noise ratio
- base station
- power control
- target signal
- control commands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a closed loop power control processing method and a base station. The closed loop power control processing method comprises the steps: the base station receives uplink information sent by a terminal; and the base station regulates an initial value of a target signal to noise ratio of an uplink control channel according to the condition of receiving the uplink information. According to the invention, the transmitting power of the terminal can be better regulated.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of closed power control and treatment method and base station.
Background technology
In wireless communication system, in order to overcome interference and noise, reduce interference to adjacent sub-district, to save power etc., base station side and end side all will be carried out power and controlled.For example, for terminal (User Equipment abbreviates UE as), if in order to guarantee the stability of this sub-district received power, away from base station in service sector the time, transmitting power is than higher, and near base station in service sector the time, transmitting power is lower; On the contrary, if in order to guarantee the stability to adjacent area interference, away from base station in service sector the time, transmitting power is lower, and near base station in service sector the time, transmitting power is higher.
In Long Term Evolution (Long Term Evolution abbreviates LTE as) system, power control can be divided into control of up (UL) power and the control of descending (DL) power.Wherein, Uplink power control can be divided into Physical Uplink Shared Channel (Physical Uplink Shared Channel again; Abbreviating PUSCH as) power is controlled, ascending control channel (Physical Uplink Control Channel abbreviates PUCCH as) power is controlled and the control of SRS (Sounding Reference Signal) power.
The control of PUSCH power mainly is used for power control is carried out in the transmission of data message, and PUCCH mainly is used for power control is carried out in the transmission of control information, and the control of SRS power is used for power control is carried out in the transmission of detection reference signal.
The control of PUCCH power can be divided into open Loop Power control and closed power control.Open Loop Power control is that transmitting power is calculated according to high-rise configuration information and path loss in the terminal; Closed power control is the power control commands word calculating transmitting power of terminal according to high-rise configuration information, path loss and base station side feedback.In the control of PUCCH closed power, a kind of processing method is the result who utilizes received signal to noise ratio and target signal to noise ratio to compare, and produces the power control commands word, with the adjustment terminal transmit power.Wherein, target signal to noise ratio is that link simulation provides, to different PUCCH forms and special circumstances (for example, binding, multiplexing).In correlation technique; The adjustment of target signal to noise ratio is divided into the lifting target signal to noise ratio and reduces target signal to noise ratio; The step-length that promotes and reduce all is to set in advance and fix, and does not consider the actual conditions of channel, thereby has caused the control inaccuracy to terminal transmit power.
Summary of the invention
Main purpose of the present invention is to provide a kind of closed power control and treatment scheme, to address the above problem at least.
According to an aspect of the present invention, a kind of closed power control and treatment method is provided, this method comprises: the uplink information that the base station receiving terminal sends; Said base station is according to the initial value of the target signal to noise ratio of the situation adjustment ascending control channel that receives said uplink information.
According to a further aspect in the invention, a kind of base station is provided also, has comprised: receiving element is used for the uplink information that receiving terminal sends; Adjustment unit is used for the initial value according to the target signal to noise ratio of the situation adjustment ascending control channel that receives said uplink information.
Through the present invention; The uplink information that adopts the base station receiving terminal to send; And according to the initial value of the target signal to noise ratio of the situation adjustment ascending control channel that receives uplink information; Solve in the correlation technique adjustment of target signal to noise ratio and do not considered the actual conditions of channel and cause terminal transmit power is controlled coarse problem, and then realized adjusting better the effect of terminal transmit power.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the closed power processing method of the embodiment of the invention;
Fig. 2 is the structured flowchart according to the base station of the embodiment of the invention;
Fig. 3 is the base station preferred construction block diagram according to the embodiment of the invention;
Fig. 4 is the flow chart according to embodiment of the invention PUCCH close-loop power controlling method;
Fig. 5 is the flow chart according to the target signal to noise ratio adjustment judgement of the embodiment of the invention;
Fig. 6 is the structured flowchart according to the base station of the embodiment of the invention two;
Fig. 7 is according to the power control commands word generation under time division multiplexing (Time Division Duplex abbreviates TDD as) pattern of the embodiment of the invention and the sketch map that comes into force thereof;
Fig. 8 is the sketch map according to the target signal to noise ratio adjustment of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
In following examples; The change of target signal to noise ratio is unfixed; Need adjust (being also referred to as the initial target signal to noise ratio) to the initial value of target signal to noise ratio according to the reception condition of reality,, need to prove with corresponding with the variation of real channel; For target signal to noise ratio individual initial value being arranged, is that physical layer link emulation provides.In following examples, the adjustment of target signal to noise ratio is meant the initial target signal to noise ratio adjusted, rather than the current goal signal to noise ratio is adjusted that promptly adjustment all is the adjustment to the initial target signal to noise ratio each time.
Embodiment one
In the present embodiment, a kind of closed power control and treatment method is provided, Fig. 1 is that this flow process may further comprise the steps according to the flow chart of the closed power processing method of the embodiment of the invention:
Step S102, the uplink information that the base station receiving terminal sends;
Step S104, the base station is according to the initial value of the target signal to noise ratio of the situation adjustment ascending control channel that receives uplink information.
Through above-mentioned steps S102 and step S104; The base station is when the initial value of adjustment target signal to noise ratio; No longer adopt the fixed step size that sets in advance, but adjust, through such processing mode according to the situation that receives uplink information; Make the situation of the adjustment of target signal to noise ratio initial value being considered channel, thereby can better control the transmitting power at terminal.
Preferably, the base station can be according to the initial value of received signal to noise ratio that receives uplink information and/or received power adjustment target signal to noise ratio.For example; The base station can (this adjusted value can directly use both differences according to the current goal signal to noise ratio of ascending control channel and the difference calculate adjusting values of received signal to noise ratio; Perhaps also can use the tangent value of two differences etc.); Then, use this adjusted value that the initial value of target signal to noise ratio is adjusted.
Again for example; If the initial value of target signal to noise ratio is adjusted, according to the noise and the interference value (Noise and Interference abbreviates NI as) of physical layer measurement according to received power; The current goal signal to noise ratio is converted to target received power; Promptly establishing the current goal signal to noise ratio is targetSINR, the current goal received power targetPower=targetSINR+NI after then converting (to the dB value), then; Utilize the comparison of received power and current targetPower, the initial value of adjustment target signal to noise ratio.For example, according to the difference calculate adjusting values of received power and target received power, use the initial value of this adjusted value adjustment target signal to noise ratio.Need to prove that this method of adjustment can be identical with the method according to the initial value of received signal to noise ratio and current goal signal to noise ratio adjustment target signal to noise ratio, repeats no more at this.
Preferably, after the initial value of target signal to noise ratio is adjusted, can use the initial value of the situation that receives uplink information, adjusted target signal to noise ratio and issued but the accumulated value generation power control commands word of also unenforced power control commands word.Below being that example describes according to the received signal to noise ratio that receives uplink information: calculate the result of (adjustment back target signal to noise ratio-ascending control information received signal to noise ratio+ issued but the value of the power control commands word that also do not come into force), with this result adjust to can be used for the control of ascending control channel power value as the power control commands word.
Preferably, before the base station is according to the situation adjustment target signal to noise ratio that receives uplink information, can also at first carries out one and judge, judge and whether need adjust the initial value of target signal to noise ratio according to the situation that receives uplink information.For example; The base station can be added up received signal to noise ratio respectively greater than the current goal signal to noise ratio (promptly; The last or last adjusted target signal to noise ratio) first number and received signal to noise ratio be less than second number of current goal signal to noise ratio, and be equal to or greater than under the situation of separately threshold value (threshold value of first number and second number can equate, also can be unequal) at this first number or second number; Initial value to target signal to noise ratio is adjusted, as adjustment back target signal to noise ratio.
In addition, in existing technology, do not consider the situation of power control commands word error of transmission yet.Yet, in the actual conditions, under different channel conditions, need receive the mistake of power control commands word and handle, to realize adjusting better terminal transmit power.
In the present embodiment, under the situation of the information that ascending control channel sends, whether base station judges needs reprovision power control commands word at the base station receiving terminal.
For example, the base station is accumulated the power control commands word and is obtained first accumulated value; The base station is carried out up path loss and is estimated, and according to the transmitting power of the estimated value computing terminal of up path loss, to obtain second accumulated value; The base station is first accumulated value and second accumulated value relatively; And be 0 at the accumulated value that comparative result surpasses reprovision power control commands word under the situation of threshold value, for example, the definition threshold value; When the absolute value of first accumulated value and the second accumulation value difference during greater than this threshold value, then the accumulated value of reprovision power control commands word is zero.
Preferably; Also can adopt other a kind of mode to judge whether to need reprovision power control commands word: the sliding window that scheduled duration is set; In one section timing statistics, calculate ascending control channel received signal to noise ratio in this sliding window less than the ratio of photos and sending messages number of times on the number of times of current goal signal to noise ratio and the ascending control channel; If this ratio is greater than threshold value, then the accumulated value of reprovision power control commands word is zero.For example, the sliding window length of definition W is 2.5s, is initialized as zero; Statistics step-length Step is 1s, and when arriving timing statistics, establishing ascending control channel received signal to noise ratio in the sliding window is N less than the number of times of current goal signal to noise ratio; If the photos and sending messages number of times is M on the ascending control channel; Bler=N/M then, if Bler＞0.1, then the accumulated value of reprovision power control commands word is zero.
Preferably, for the transmission of the order of reprovision power control commands word, can use to issue the order that the shared bit of power control commands word sends reprovision power control commands word.
In the present embodiment, a kind of base station is provided also, Fig. 2 is the structured flowchart according to the base station of the embodiment of the invention, and is as shown in Figure 2, and this base station comprises: receiving element 22, adjustment unit 24 are explained below.
Receiving element 22 is used for the uplink information that receiving terminal sends; Adjustment unit 24 is connected to receiving element 22, is used for the initial value according to the target signal to noise ratio of the situation adjustment ascending control channel that receives uplink information.
Preferably, adjustment unit 24 is used for the initial value according to the target signal to noise ratio of received signal to noise ratio that receives uplink information and/or received power adjustment ascending control channel.
Preferably, adjustment unit 24 is used for the difference calculate adjusting values according to the target signal to noise ratio of ascending control channel and said received signal to noise ratio, uses this adjusted value that the initial value of the target signal to noise ratio of said ascending control channel is adjusted.
Fig. 3 is the base station preferred construction block diagram according to the embodiment of the invention; This base station also comprises: adjustment decision unit 32 is connected to adjustment unit 24, and this unit is used for judging whether that according to the situation that receives said uplink information needs adjust the initial value of said target signal to noise ratio.
Preferably, adjustment decision unit 32 also is used at the base station receiving terminal under the situation of the information that ascending control channel sends, need judging whether reprovision power control commands word.
Embodiment two
In the present embodiment; Combine embodiment and preferred embodiment among the embodiment one, the scheme of PUCCH closed power control is provided, can let base station side (comprise: PUSCH, PUCCH according to the reception condition of up link; SRS), the target signal to noise ratio of self adaptation adjustment ascending control channel.And, reduce the presence of intercell interference of ascending control channel to the notion that the PUCCH and the PUSCH introducing of neighbor cell are evaded.Control is introduced the power control commands word and is received wrong treatment mechanism to PUCCH power.
Fig. 4 is as shown in Figure 4 according to the flow chart of embodiment of the invention PUCCH close-loop power controlling method, and this flow process comprises the steps:
Step S402; Configuration generates and the relevant parameter of power control commands word reprovision with target signal to noise ratio adjustment, power control commands word; Comparative statistics number of times thresholding comprising lifting and reduction target signal to noise ratio (can be provided with two thresholdings; Also can use a thresholding), promote and reduce the maximum thresholding (configurable is two thresholdings, an also available thresholding) of target signal to noise ratio, the statistics number thresholding that reduces power, the decision threshold of power control commands word reprovision etc.; Configuration neighbor cell PUCCH and PUSCH Hedging mechanism can use dynamic, staticly or semi-static, and for example, the PUCCH that disposes neighbor cell occupies similar frequency bands, promptly uses static configuration; Configuration target signal to noise ratio adjustment decision mechanism; For example, Fig. 5 is that the ascending control information received signal to noise ratio is compared with the current goal signal to noise ratio according to the flow chart of the target signal to noise ratio adjustment judgement of the embodiment of the invention; Respectively to received signal to noise ratio less than with restart greater than the situation of current goal signal to noise ratio the statistics; Wherein, received signal to noise ratio is compared with statistics thresholding M greater than the cumulative statistics number of times of current goal signal to noise ratio, if equal then according to the interval self adaptation reduction target signal to noise ratio of received signal to noise ratio and current goal signal to noise ratio; Then, received signal to noise ratio is restarted statistics greater than the situation of current goal signal to noise ratio; If less than would not do not adjust; Received signal to noise ratio is compared with statistics thresholding N less than the cumulative statistics number of times of current goal signal to noise ratio; If equal then according to the interval adaptive boosting target signal to noise ratio of received signal to noise ratio and current goal signal to noise ratio; Then; To received signal to noise ratio less than the situation of current goal signal to noise ratio restart the statistics, if less than would not do not adjust.
Adjustment of configuration target signal to noise ratio and power control commands word reprovision decision mechanism, for example, base station side is accumulated the power control commands word; And carry out up path loss and estimate; Estimate the UE transmitting power according to up path loss, and then obtain the power control commands word accumulated value of UE side, the accumulated value and the UE side accumulated value of base station side compared; If comparative result surpasses thresholding, then restart accumulation (being reprovision) power control commands word.
Step S404 if the uplink information transmission is arranged, then handles uplink information received signal to noise ratio (or power) with current control channel target signal to noise ratio comparing, and according to the comparative statistics result, need to judge whether the initial value of adjustment target signal to noise ratio; If ascending control channel transmits, then judge whether the accumulated value of needs reprovision power control commands word according to power control commands word reprovision decision mechanism.
The relation of configuration target signal to noise ratio adjusted value and up link reception etc., for example, target signal to noise ratio adjusted value=tan ((current goal signal to noise ratio-received signal to noise ratio)/20), tan representes tan.
Step S406, according to court verdict, if need not adjust target signal to noise ratio, initial target signal to noise ratio constant (for example, can provide) then by link simulation; Adjust target signal to noise ratio if desired, then the initial value of the target signal to noise ratio of ascending control channel is adjusted according to the up link reception condition; Configuration power control commands word generates with up link and receives, target signal to noise ratio and having issued but relation between the power control commands word that also do not come into force after the adjustment; For example (but being not limited thereto): calculate deltaSINR=adjustment back target signal to noise ratio-ascending control information received signal to noise ratio+ issued but the value of the power control commands word that also do not come into force, with deltaSINR be adjusted upward to can be used for the control of ascending control channel power among the LTE value as the power control commands word.
Step S408 according to up link reception condition, adjusted target signal to noise ratio and the court verdict of needs reprovision power control commands word accumulated value whether, generates the power control commands word.
Fig. 6 is the structured flowchart according to the base station of the embodiment of the invention two; Following unit is positioned at the MAC layer of base station; Comprise: main control unit, information collection unit, ascending control channel target signal to noise ratio adjustment judgement and power control commands word reprovision decision unit (abbreviating the adjustment decision unit as), ascending control channel target signal to noise ratio adjustment unit (can abbreviate adjustment unit as) and ascending control channel power control commands word generation unit are explained below.
Main control unit: configuration generates and the relevant parameter of power control commands word reprovision with target signal to noise ratio adjustment, power control commands word; Configuration target signal to noise ratio adjustment decision mechanism; The relation of configuration target signal to noise ratio adjusted value and up reception etc., and the power control commands word generate with last/descending reception, adjustment after the relation of target signal to noise ratio; Configuration power control commands word reprovision decision mechanism; Configuration neighbor cell PUCCH and PUSCH Hedging mechanism.
Information collection unit: collect and relevant up link, the down link relevant information of ascending control channel power control, safeguard target signal to noise ratio.
Ascending control channel target signal to noise ratio adjustment judgement and power control commands word reprovision decision unit: up link reception condition and current goal signal to noise ratio that parameter relevant with the target signal to noise ratio adjustment that the reception main control unit sends and information collection unit are sent; And the comparative result of statistical correlation, need to judge whether adjustment initial target signal to noise ratio; For the transmission of ascending control channel, judge whether the accumulated value of needs reprovision power control commands word according to power control commands word reprovision decision mechanism.
Ascending control channel target signal to noise ratio adjustment unit: receive information collection unit and send up link reception condition and current goal signal to noise ratio; And the court verdict that sends of target signal to noise ratio adjustment decision unit, initial ascending control channel target signal to noise ratio is adjusted accordingly.
Ascending control channel power control commands word generation unit: the related uplink that court verdict of exporting with target signal to noise ratio, ascending control channel target signal to noise ratio adjustment judgement and power control commands word reprovision decision unit after the power control commands word generates the adjustment of relevant parameter, the output of ascending control channel target signal to noise ratio adjustment unit that receives that main control unit sends and information collection unit are sent and the relevant information of down link generate the follow-up power control commands word that is used to adjust the ascending control information transmitting power.Wherein, owing to existingly be used for the bit that the power control commands word issues and also do not use up, therefore, the order of power control commands word reprovision can replenish through increasing different values on existing basis, need not introduce new information.
Through the above embodiment of the present invention, base station side makes it catch up with channel variation according to channel variation real-time update ascending control channel target signal to noise ratio, helps the base station and adjusts the transmitting power of terminal to ascending control information better, improves the correct probability that receives.And introduce evading of neighbor cell PUCCH and PUSCH, reduce the presence of intercell interference that ascending control information receives; Introduce power control commands word reprovision mechanism, the accumulated value of reprovision power control commands word is realized simple and reliable.
In following enforcement three and embodiment four, the PUCCH closed power control of LTE system is the accumulation formula for power control command word, and the power control commands word that generates before promptly once sending all can be accumulated in the transmitting power, influences this time transmission.Fig. 7 is according to the power control commands word generation under time division multiplexing of the embodiment of the invention and the sketch map that comes into force thereof, and is as shown in Figure 7, receives ascending control information at the 7th sub-frame of uplink; Utilize received signal to noise ratio to produce the power control commands word, suppose that the processing time needs 2ms, then the power control commands word of generation can issue at the 9th descending sub frame; According to the power control commands word entry-into-force time of LTE agreement regulation; This power control commands word can come into force at the 13rd sub-frame of uplink, and between the 7th and the 13rd sub-frame of uplink, also has the power control commands word that comes into force at the 8th and the 12nd sub-frame of uplink not to be accumulated in the transmitting power; Comprise the 4th, the 5th and the 6th the power control commands word that descending sub frame issues; According to top narration, these power control commands words can influence the emission of the 13rd sub-frame of uplink equally, therefore; When being created on the power control commands word that the 9th descending sub frame issue, should remove at the 4th, the 5th and the 6th the power control commands word that descending sub frame issues.
The PUCCH power control commands word of LTE system has four values [1; 0,1,3]; If so according to current goal signal to noise ratio, ascending control information received signal to noise ratio and issued but the power control commands word that also do not come into force when producing the power control commands word, can corresponding different results.For example; If according to current goal signal to noise ratio, ascending control information received signal to noise ratio and issued but amount deltaSINR value that the power control commands word that also do not come into force obtains deducts the value (being not limited thereto method) that the ascending control information received signal to noise ratio is added the power control commands word that issues but also do not come into force for adjustment back target signal to noise ratio; Then two kinds of deltaSINR and power control commands words possible but the result that is not limited to shown in table 1 and table 2, for falling power, promptly the value of power control commands word is-1 situation; Decision threshold can also be set; For example, when the statistics number of the power of will begging to surrender continuously during greater than a certain threshold value, power falls just one time; When threshold value gets 1, be the situation of table 1 and table 2.
Table 1
| deltaSINR | The power control commands word |
| ＞＝1 | 3 |
| ＞＝0 | 1 |
| -2＝＜deltaSINR?&&?deltaSINR＜0 | 0 |
| ＜-2 | -1 |
Table 2
| deltaSINR | The power control commands word |
| ＞＝3 | 3 |
| ＞＝1 | 1 |
| -1＜deltaSINR?&&?deltaSINR ＜1 | 0 |
| ＜＝-1 | -1 |
Adjust for the target signal to noise ratio self adaptation; Because the initial target signal to noise ratio is that link simulation provides; The realistic objective signal to noise ratio should fluctuate near initial value, very big deviation can not occur, so when the adjustment target signal to noise ratio; Should adjust within limits, for promoting target signal to noise ratio and reducing the restriction that target signal to noise ratio all has a thresholding.Fig. 8 is the sketch map according to the target signal to noise ratio adjustment of the embodiment of the invention; As shown in Figure 8; Confirm adjustment amount according to ascending control information received signal to noise ratio and current goal signal to noise ratio to the initial target signal to noise ratio; If promote, judge that then whether the prompting value is greater than promoting thresholding, if then lifting values is for promoting thresholding; If reduce, judge that then whether the reduction value is less than reducing thresholding, if then reduction value is for reducing thresholding.
Embodiment three
PUCCH closed power control under the frequency division multiplexing of LTE system (Frequency Division Duplex the abbreviates FDD as) pattern.
Table 3
| deltaSINR | The power control commands word |
| ＞＝3 | 3 |
| ＞＝1 | 1 |
| -1＜deltaSINR?&&?deltaSINR ＜1 | 0 |
| ＜＝-1 | If the continuous statistics number thresholding of the statistics number of power when equaling to fall power falls in continuous to-be, then the power control commands word equals-1, and restarts statistics; Otherwise the power control commands word equals 0 |
If there is ascending control information to receive, need then judges whether adjustment initial target signal to noise ratio, and need to judge whether the accumulated value of reprovision power control commands word.
Embodiment four
PUCCH closed power control under the tdd mode of LTE system.
Step 1, evading of configuration neighbor cell PUCCH and PUSCH is identical with embodiment three; Continuous statistics number thresholding during the arrangements lifting target signal to noise ratio is 1, and the continuous statistics number thresholding when configuration reduces target signal to noise ratio is 30; Continuous statistics number thresholding when power (promptly send out power control commands word value and be-1) falls in configuration is 100; The last Lower Threshold of configuration target signal to noise ratio adjusted value, wherein, the thresholding that promotes target signal to noise ratio is 4dB, the thresholding that reduces target signal to noise ratio is 2dB; Configuration power control commands word reprovision decision threshold is 20dB; Configuration needs 2ms (to be not limited thereto from last control information to issuing the power control commands word; Confirm according to actual conditions); The side-play amount table of comparisons of the descending sub frame number relative sub-frame of uplink i at the power control commands word place of then on a certain sub-frame of uplink i, sending out issuing of need handling when obtaining the power control commands word after the control information but also not coming into force, as shown in table 5.For example 1 time sub-frame of uplink of TDD proportioning 3 needs to handle issuing but the descending sub frame at the power control commands word place of also not coming into force number is i-2, i-3, and i-(1), "-" representes that this subframe is a descending sub frame or for sub-frame of uplink but do not generate the power control commands word.When the relative descending sub frame of sub-frame of uplink more for a long time, for example, TDD proportioning 0 time has only two descending sub frames behind continuous three sub-frame of uplink, so that which sub-frame of uplink produces the power control commands word is not unique, table 5 just wherein a kind of maybe, but be not limited thereto.
Table 4
| deltaSINR | The power control commands word |
| ＞＝1 | 3 |
| ＞＝0 | 1 |
| -2＜deltaSINR?&&?deltaSINR ＜0 | 0 |
| ＜＝-2 | If the continuous statistics number thresholding of the statistics number of power when equaling to fall power falls in continuous to-be, then the power control commands word equals-1, and restarts statistics; Otherwise the power control commands word equals 0 |
Table 5
If this subframe is sub-frame of uplink and has ascending control information to receive that then judging whether needs to adjust the target signal to noise ratio that link simulation provides, and need to judge whether the accumulated value of reprovision power control commands word.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a closed power control and treatment method is characterized in that, comprising:
The uplink information that the base station receiving terminal sends;
Said base station is according to the initial value of the target signal to noise ratio of the situation adjustment ascending control channel that receives said uplink information.
2. method according to claim 1 is characterized in that, said base station is according to the received signal to noise ratio that receives said uplink information and/or the initial value of the target signal to noise ratio that received power is adjusted said ascending control channel.
3. method according to claim 1 and 2 is characterized in that, the initial value of the target signal to noise ratio of said ascending control channel is adjusted according to the received power that receives said uplink information in said base station, comprising:
Noise that said base station use physical layer is measured and interference value NI and the addition of current goal signal to noise ratio obtain target received power;
Difference calculate adjusting values according to said received power and said target received power;
Use said adjusted value to adjust the initial value of said target signal to noise ratio.
4. method according to claim 1 and 2 is characterized in that, the initial value of the target signal to noise ratio of said ascending control channel is adjusted according to the received signal to noise ratio that receives said uplink information in said base station, comprising:
According to the current goal signal to noise ratio of said ascending control channel and the difference calculate adjusting values of said received signal to noise ratio;
Use said adjusted value that the initial value of the target signal to noise ratio of said ascending control channel is adjusted.
5. method according to claim 1 and 2 is characterized in that, adjusts according to the situation that receives said uplink information in said base station before the initial value of target signal to noise ratio of said ascending control channel, also comprises:
Said base station is judged according to the situation that receives said uplink information, is judged whether and need adjust the initial value of said target signal to noise ratio.
6. method according to claim 5; It is characterized in that; Said base station is added up the number of times and the received signal to noise ratio that receive uplink information number of times less than current goal signal to noise ratio of the received signal to noise ratio of reception uplink information greater than the current goal signal to noise ratio respectively; And be equal to or greater than under the situation of threshold value at said number of times, the initial value of said target signal to noise ratio is adjusted.
7. method according to claim 1 is characterized in that, under the situation of the information that ascending control channel sends, whether said base station judges needs reprovision power control commands word at said base station receiving terminal.
8. method according to claim 7 is characterized in that,
The sliding window of scheduled duration is set; In one section timing statistics, calculate ascending control channel received signal to noise ratio in the said sliding window less than the ratio of photos and sending messages number of times on the number of times of current goal signal to noise ratio and the said ascending control channel; If this ratio is greater than threshold value, then the accumulated value of reprovision power control commands word is zero.
9. method according to claim 7 is characterized in that,
Said base station is accumulated the power control commands word and is obtained first accumulated value;
Up path loss estimation is carried out in said base station, and calculates the transmitting power at said terminal according to the estimated value of said up path loss, to obtain second accumulated value;
More said first accumulated value in said base station and said second accumulated value, and under comparative result surpassed the situation of threshold value, the accumulated value of reprovision power control commands word was zero.
10. method according to claim 7 is characterized in that, said base station judges needs after the reprovision power control commands word, uses to issue the order that the shared bit of power control commands word sends reprovision power control commands word.
11. method according to claim 1 is characterized in that, also comprises:
The Physical Uplink Control Channel PUCCH of configuration neighbor cell occupies identical frequency range.
12. method according to claim 1 is characterized in that, after the initial value of said base station according to the target signal to noise ratio of the situation adjustment ascending control channel that receives said uplink information, also comprises:
Use receives the initial value of the situation of said uplink information, adjusted target signal to noise ratio and has issued but the accumulated value generation power control commands word of also unenforced power control commands word.
13. a base station is characterized in that, comprising:
Receiving element is used for the uplink information that receiving terminal sends;
Adjustment unit is used for the initial value according to the target signal to noise ratio of the situation adjustment ascending control channel that receives said uplink information.
14. base station according to claim 13 is characterized in that, said adjustment unit is used for according to the received signal to noise ratio that receives said uplink information and/or the initial value of the target signal to noise ratio that received power is adjusted said ascending control channel.
15. according to claim 13 or 14 described base stations, it is characterized in that, also comprise: the adjustment decision unit is used for judging whether that according to the situation that receives said uplink information needs adjust the initial value of said target signal to noise ratio.
16. according to claim 13 or 14 described base stations, it is characterized in that,
Said adjustment decision unit also is used at said base station receiving terminal under the situation of the information that ascending control channel sends, need judging whether reprovision power control commands word.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010225095.9A CN102316568B (en) | 2010-07-05 | 2010-07-05 | Closed loop power control processing method and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010225095.9A CN102316568B (en) | 2010-07-05 | 2010-07-05 | Closed loop power control processing method and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102316568A true CN102316568A (en) | 2012-01-11 |
| CN102316568B CN102316568B (en) | 2015-08-12 |
Family
ID=45429295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010225095.9A Active CN102316568B (en) | 2010-07-05 | 2010-07-05 | Closed loop power control processing method and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102316568B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249132A (en) * | 2012-02-03 | 2013-08-14 | 鼎桥通信技术有限公司 | Power compensation method and device used for voice service |
| CN103428727A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Method and system for detecting UE approaching micro base station |
| WO2014194522A1 (en) * | 2013-06-08 | 2014-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Uplink interference suppression in a wireless communication network |
| CN106060918A (en) * | 2016-06-08 | 2016-10-26 | 上海华为技术有限公司 | Power control method and base station |
| CN112399538A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Power control method and device |
| CN112399539A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Power control method and device |
| CN116567790A (en) * | 2023-07-05 | 2023-08-08 | 深圳国人无线通信有限公司 | PUSCH power control TPC adjustment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004034605A1 (en) * | 2002-09-26 | 2004-04-22 | Utstarcom (China) Co., Ltd. | A method and system of adaptive outerloop-power-control based on the measurement of ber |
| CN1993897A (en) * | 2004-03-10 | 2007-07-04 | 美商内数位科技公司 | Adjustment of target signal-to-interference in outer loop power control for wireless communication systems. |
| CN101237259A (en) * | 2007-01-29 | 2008-08-06 | 华为技术有限公司 | A method, system and user platform for power control |
| CN101651979A (en) * | 2009-09-15 | 2010-02-17 | 北京天碁科技有限公司 | Power control method and device applied to high-speed sharing control channels |
-
2010
- 2010-07-05 CN CN201010225095.9A patent/CN102316568B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004034605A1 (en) * | 2002-09-26 | 2004-04-22 | Utstarcom (China) Co., Ltd. | A method and system of adaptive outerloop-power-control based on the measurement of ber |
| CN1993897A (en) * | 2004-03-10 | 2007-07-04 | 美商内数位科技公司 | Adjustment of target signal-to-interference in outer loop power control for wireless communication systems. |
| CN101237259A (en) * | 2007-01-29 | 2008-08-06 | 华为技术有限公司 | A method, system and user platform for power control |
| CN101651979A (en) * | 2009-09-15 | 2010-02-17 | 北京天碁科技有限公司 | Power control method and device applied to high-speed sharing control channels |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249132B (en) * | 2012-02-03 | 2016-06-29 | 鼎桥通信技术有限公司 | Power compensating method in a kind of speech business and device |
| CN103249132A (en) * | 2012-02-03 | 2013-08-14 | 鼎桥通信技术有限公司 | Power compensation method and device used for voice service |
| CN103428727B (en) * | 2012-05-14 | 2018-07-20 | 中兴通讯股份有限公司 | The detection method and system of a kind of UE close to micro-base station |
| CN103428727A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Method and system for detecting UE approaching micro base station |
| WO2014194522A1 (en) * | 2013-06-08 | 2014-12-11 | Telefonaktiebolaget L M Ericsson (Publ) | Uplink interference suppression in a wireless communication network |
| US9392559B2 (en) | 2013-06-08 | 2016-07-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Uplink interference suppression in a wireless communication network |
| CN106060918A (en) * | 2016-06-08 | 2016-10-26 | 上海华为技术有限公司 | Power control method and base station |
| CN106060918B (en) * | 2016-06-08 | 2020-06-26 | 上海华为技术有限公司 | Power control method and base station |
| CN112399538A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Power control method and device |
| CN112399539A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Power control method and device |
| WO2021031996A1 (en) * | 2019-08-16 | 2021-02-25 | 华为技术有限公司 | Power control method and apparatus |
| CN112399539B (en) * | 2019-08-16 | 2022-08-26 | 华为技术有限公司 | Power control method and device |
| CN112399538B (en) * | 2019-08-16 | 2022-11-22 | 华为技术有限公司 | Power control method and device |
| CN116567790A (en) * | 2023-07-05 | 2023-08-08 | 深圳国人无线通信有限公司 | PUSCH power control TPC adjustment method |
| CN116567790B (en) * | 2023-07-05 | 2023-10-20 | 深圳国人无线通信有限公司 | PUSCH power control TPC adjustment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102316568B (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109151969B (en) | Method and device for determining transmission power and terminal | |
| CN101103551B (en) | Method, access point and WTRU for controlling transmission power levels of uplink/downlink communication in a wireless communication system | |
| US8462682B2 (en) | Method and arrangement for separate channel power control | |
| US7853281B2 (en) | Methods and apparatus for tracking wireless terminal power information | |
| CN102143568B (en) | Power control method and base station | |
| CN101897129B (en) | Method and arrangement for adjusting transmission power by-adjusting a gain factor in a communication system | |
| US8537688B2 (en) | Method and a device for enhanced performance in a cellular wireless TDD system | |
| CN102316568A (en) | Closed loop power control processing method and base station | |
| US20100157829A1 (en) | Method and a device for improved channel quality reporting | |
| CN101277509B (en) | Method for calculating synchronous step-out threshold as well as method and device adjudging synchronous step-out of physical layer | |
| US20060079264A1 (en) | Outer loop power control of user equipment in wireless communication | |
| EP0940017A2 (en) | Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed | |
| CN107734622A (en) | Ascending power control method and device | |
| CN101242203A (en) | A method and device for realizing power control of control channel | |
| CN102076073A (en) | Method, device and system for controlling outer loop power | |
| US20060252451A1 (en) | Transmission power control device and method | |
| JP5630907B2 (en) | Apparatus and method for uplink transmission power control in communication system | |
| JP4384045B2 (en) | Method and apparatus for estimating signal to interference ratio (SIR) in a WCDMA system | |
| JP3543759B2 (en) | Transmission power control method, transmitting / receiving apparatus, base station and mobile station | |
| CN101120518A (en) | Method and device for power control in a wireless communication system | |
| CN102340858B (en) | Method and device for setting target SINR (Signal-to-Interference and Noise Ratio) in PUSCH (Physical Uplink Shared Channel) power control | |
| CN102377513A (en) | Adaptive modulation and coding method and device | |
| RU2005127632A (en) | METHOD FOR MANAGING POWER TRANSMISSION OF THE RISING COMMUNICATION LINE | |
| US8437704B2 (en) | System and method for resuming power control after interruption | |
| CN100440752C (en) | Transmitting power controlling method for realizing target signal noise ratio fast convergence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201208 Address after: Delaware, USA Patentee after: NCH 93 limited liability company Address before: 518057 Nanshan District science and technology, Guangdong Province, South Road, No. 55, No. Patentee before: ZTE Corp. |
|
| TR01 | Transfer of patent right |