CN104641584A

CN104641584A - Method and device for reporting CQI (channel quality index)

Info

Publication number: CN104641584A
Application number: CN201380000171.8A
Authority: CN
Inventors: 李秉肇; 张丹丹
Original assignee: Huawei Technologies Co Ltd
Current assignee: Haimen Chuanghao Industrial Design Co ltd
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2015-05-20
Anticipated expiration: 2033-02-26
Also published as: CN104641584B

Abstract

The invention discloses a method and device for reporting a CQI (channel quality index). The method comprises the steps: determining the reporting of the CQI to a base station according to the power request adjustment volume in a first time period and signal-to-noise ratio change volume of a pilot channel, wherein the power request adjustment volume in the first time period is the sum of the adjustment volume of transmitting power, requested by the base station, of user equipment (UE) in the first time period; reporting the CQI to the base station. The method and device can enable the UE to report the CQI according to the actual dynamic condition of the pilot channel, can prevent redundant expenditure caused by a shorter CQI reporting period, and also can enable the base station to keep more accurate CQI prediction, thereby saving system resources, improving the accuracy of CQI prediction of the base station, and improving the system performance and user experience.

Description

The method of reporting channel quality instruction CQI and device thereof

Technical field

The embodiment of the present invention relates to the communications field, and more specifically, relates to method and the device thereof of reporting channel quality instruction CQI.

Background technology

Subscriber equipment (User Equipment, referred to as " UE ") based on signal to noise ratio (the Signal-to-Interference Ratio of downstream signal, referred to as " SIR ") value determination channel quality instruction (Channel Quality Indicator, referred to as " CQI "), and this CQI is reported periodically the channel quality condition that base station receives to indicate this UE, so that this base station is dispatched according to channel quality.The report cycle of CQI can configure, and the less CQI cycle can make base station can obtain the channel quality information of UE in time, but can produce larger up signaling traffic load; And increase all after dates and can reduce up signaling traffic load, but base station can be caused can not to obtain UE channel quality information in time, therefore, need research how when larger CQI report cycle, base station still can obtain the channel quality information of UE in time.

In inner-loop power control process, UE controls (Transmitter Power Control by sending transmitting power to base station, referred to as " TPC ") order and ask base station to adjust downlink Dedicated Physical control channel (Dedicated Physical Control CHannel, referred to as " DPCCH ") or fractional dedicated physical channel (Fractional Dedicated Physical CHannel, referred to as " F-DPCH ") transmitting power, with channel or noise change time keep stable down target SIR.UE adjusts command word to base-station transmitting-power, can comprise 0 and 1, and 0 represents decline, and 1 represents rising.Base station is according to the transmitting power of whole DPCCH or F-DPCH of this power adjustment commands tone of Chinese characters.Such as, when channel degradation, UE can improve the transmitting power of DPCCH by informing base station, so that the target SIR of DPCCH that UE side joint receives remains unchanged.

Consider that the transmit power variation of DPCCH or F-DPCH is relevant with UE variations, base station can be revised the CQI that UE reports according to the changed power of DPCCH.Like this, can configure larger CQI report cycle for UE, base station can be revised CQI by DPCCH changed power, can keep less error to make base station to the estimation of the CQI of this UE and actual CQI.But, there is following defect in above-mentioned prior art: first, the change of the transmitting power of DPCCH and the actual change of CQI there will be difference in some cases, such as, the transmitting power of DPCCH has been adjusted to the upper limit or the lower limit of transmitting power by base station, even if the channel status of UE changes again and UE sends TPC command to base station, the power that base station sends DPCCH to this UE also can not change, if now UE does not still report CQI to base station, base station is still estimated according to the CQI of transmitting power to this UE of this DPCCH, then can there is comparatively big error with the CQI of reality, secondly, different UE may adopt the different parameter values relevant to noise when determining SIR and CQI of DPCCH, such as, and noise power spectral density N ₀remove orthogonalization interference after cause power spectral density Nt etc., like this, the change of the transmitting power of DPCCH accurately may not reflect the variable quantity of CQI, and this factor is not considered in base station, therefore the CQI penalty coefficient that base station is determined is inaccurate, and the CQI precision that base station is preset according to this CQI penalty coefficient is poor.

Summary of the invention

A kind of method that the embodiment of the present invention provides reporting channel quality to indicate CQI, subscriber equipment and base station, can make UE dynamically report CQI according to the virtual condition of pilot channel.

First aspect, provide the method for a kind of reporting channel quality instruction CQI, the method comprises: according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, true directional base station reports CQI, and the power request adjustment amount in this first time period is user equipment (UE) adjustment amount sum to the transmitting power of this base station requests in this first time period; CQI is reported to this base station.

In conjunction with first aspect, in the implementation that the first is possible, this is according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, comprise: when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, determine to report CQI to this base station.

In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, the method also comprises: when the second report cycle is met, report CQI to this base station, and this second report cycle is greater than this first report cycle.

In conjunction with the implementation that the second of first aspect is possible, in the implementation that the third is possible, this first time period represents the minimum time section moment of being met by this second report cycle to current time.

In conjunction with first aspect or in conjunction with the possible implementation of the first or the second of first aspect, in the 4th kind of possible implementation, this first time period represents and reports time period the moment of CQI to current time by the last time.

In conjunction with first aspect or in conjunction with the first of first aspect to any one the possible implementation in the 4th kind of possible implementation, in the 5th kind of possible implementation, this is according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, comprise: according to the signal to noise ratio variable quantity of pilot channel in this first time period, determine the CQI variable quantity in this first time period; According to the power request adjustment amount in this first time period and CQI variable quantity, determine to report CQI to this base station.

In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, this is according to the power request adjustment amount in this first time period and this CQI variable quantity, determine to report CQI to this base station, comprise: when the difference of the power request adjustment amount in this first time period and this CQI variable quantity is higher than the first thresholding, determine to report CQI to this base station.

In conjunction with first aspect or in conjunction with the first of first aspect to any one the possible implementation in the 6th kind of possible implementation, in the 7th kind of possible implementation, the method also comprises: the noise reference information reporting this UE to this base station, so that the CQI penalty coefficient of this UE is determined according to this noise reference information in this base station.

Second aspect, provide the method for a kind of reporting channel quality instruction CQI, the method comprises: detect the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, time period this first time period represented by the first moment to current time, the power request adjustment amount in this first time period is this UE adjustment amount sum to the transmitting power of base station requests in this first time period; When the CQI that this UE reports not detected, the power request adjustment amount in the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior.

In conjunction with second aspect, in the implementation that the first is possible, the CQI that this detection user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, comprise: when the first report cycle is met, detect the CQI that this UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, the method also comprises: when the second report cycle is met, receive the CQI that this UE reports, and this second report cycle is greater than this first report cycle.

In conjunction with the implementation that the second of second aspect is possible, in the implementation that the third is possible, this first moment represents the moment that this second report cycle is met.

In conjunction with second aspect or in conjunction with the possible implementation of the first or the second of second aspect, in the 4th kind of possible implementation, this first moment represents that the last time receives the moment of the CQI that this UE reports.

In conjunction with second aspect or in conjunction with the first of second aspect to any one the possible implementation in the 4th kind of possible implementation, in the 5th kind of possible implementation, the method also comprises: receive the noise reference information that this UE sends; Power request adjustment amount in this CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior, comprise: the power request adjustment amount in the CQI reported in this first moment according to this UE, this first time period and this noise reference information, the CQI in determine this UE moment in this prior.

The third aspect, provide a kind of user equipment (UE), this UE comprises: determination module, for the signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, the power request adjustment amount in this first time period is user equipment (UE) adjustment amount sum to the transmitting power of this base station requests in this first time period; Reporting module, for reporting CQI to this base station.

In conjunction with the third aspect, in the implementation that the first is possible, this determination module, specifically for when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, is determined to report CQI to this base station.

In conjunction with the first possible implementation of the third aspect, in the implementation that the second is possible, this reporting module also for when the second report cycle is met, reports CQI to this base station, and this second report cycle is greater than this first report cycle.

In conjunction with the implementation that the second of the third aspect is possible, in the implementation that the third is possible, this first time period represents the minimum time section moment of being met by this second report cycle to current time.

In conjunction with the third aspect or in conjunction with the possible implementation of the first or the second of the third aspect, in the 4th kind of possible implementation, this first time period represents and reports time period the moment of CQI to current time by the last time.

In conjunction with the third aspect or in conjunction with the first of the third aspect to any one the possible implementation in the 4th kind of possible implementation, in the 5th kind of possible implementation, this determination module comprises: the first determining unit, for the signal to noise ratio variable quantity according to pilot channel in this first time period, determine the CQI variable quantity in this first time period; Second determining unit, for this CQI variable quantity determined according to the power request adjustment amount in this first time period and this first determining unit, determines to report CQI to this base station.

In conjunction with the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation, this second determining unit, specifically for when the difference of this CQI variable quantity that the power request adjustment amount in this first time period and this determining unit are determined is higher than the first thresholding, is determined to report CQI to this base station.

In conjunction with the third aspect or in conjunction with the first of the third aspect to any one the possible implementation in the 6th kind of possible implementation, in the 7th kind of possible implementation, this reporting module also for reporting the noise reference information of this UE to this base station so that the CQI penalty coefficient of this UE is determined according to this noise reference information in this base station.

Fourth aspect, provide a kind of base station, this base station comprises: detection module, for detecting the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, time period this first time period represented by the first moment to current time, the power request adjustment amount in this first time period is this UE adjustment amount sum to the transmitting power of base station requests in this first time period; Determination module, during for CQI that this UE reports not detected when this detection module, the power request adjustment amount in the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior.

In conjunction with fourth aspect, in the implementation that the first is possible, this detection module, specifically for when the first report cycle is met, detects the CQI that this UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

In conjunction with the first possible implementation of fourth aspect, in the implementation that the second is possible, this base station also comprises: the first receiver module, for when the second report cycle is met, receive the CQI that this UE reports, this second report cycle is greater than this first report cycle.

In conjunction with the implementation that the second of fourth aspect is possible, in the implementation that the third is possible, this first moment represents the moment that this second report cycle is met.

In conjunction with fourth aspect or in conjunction with the possible implementation of the first or the second of fourth aspect, in the 4th kind of possible implementation, this first moment represents that the last time receives the moment of the CQI that this UE reports.

In conjunction with fourth aspect or in conjunction with the first of fourth aspect to any one the possible implementation in the 4th kind of possible implementation, in the 5th kind of possible implementation, this base station also comprises: the second receiver module, for receiving the noise reference information that this UE sends; This noise reference information that this determination module receives specifically for CQI, power request adjustment amount in this first time period and this second receiver module reported in this first moment according to this UE, the CQI in determine this UE moment in this prior.

Based on technique scheme, the method of what the embodiment of the present invention provided report CQI, subscriber equipment and base station, by asking the accumulation adjustment result of base station to transmitting power and the signal to noise ratio variable quantity of pilot channel according to this UE in a period of time, determine whether to report CQI to this base station, UE can be made dynamically to report CQI according to the virtual condition of pilot channel, both the redundancy overhead brought by arranging less CQI report cycle can have been avoided, base station can be made again can to keep CQI prediction more accurately, thus while saving system resource, improve the accuracy that base station is predicted CQI, improve performance and the Consumer's Experience of system.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention or description of the prior art below, apparently, accompanying drawing described is below only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the indicative flowchart indicating the method for CQI according to the reporting channel quality of the embodiment of the present invention.

Fig. 2 is another indicative flowchart reporting the method for CQI according to the embodiment of the present invention.

Fig. 3 is the indicative flowchart of the method reporting CQI according to another embodiment of the present invention.

Fig. 4 is another indicative flowchart of the method reporting CQI according to another embodiment of the present invention.

Fig. 5 is the schematic block diagram of the user equipment (UE) according to the embodiment of the present invention.

Fig. 6 is the schematic block diagram of the determination module of user equipment (UE) according to the embodiment of the present invention.

Fig. 7 is the schematic block diagram of the base station according to the embodiment of the present invention.

Fig. 8 is another schematic block diagram of the base station according to the embodiment of the present invention.

Fig. 9 is the schematic block diagram of user equipment (UE) according to another embodiment of the present invention.

Figure 10 is the schematic block diagram of base station according to another embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of protection of the invention.

Should understand, the technical scheme of the embodiment of the present invention can be applied to various communication system, such as: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, code division multiple access (Code Division Multiple Access, referred to as " CDMA ") system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, GPRS (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), universal mobile telecommunications system (Universal Mobile Telecommunication System, referred to as " UMTS "), global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system etc.

Will also be understood that, in embodiments of the present invention, subscriber equipment (User Equipment, referred to as " UE ") terminal (Terminal) can be referred to as, travelling carriage (Mobile Station, referred to as " MS "), mobile terminal (Mobile Terminal) etc., this subscriber equipment can through wireless access network (Radio Access Network, referred to as " RAN ") communicate with one or more core net, such as, subscriber equipment can be mobile phone (or being called " honeycomb " phone), there is the computer etc. of mobile terminal, such as, subscriber equipment can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.

Will also be understood that, in embodiments of the present invention, base station, can be base station (the Base Transceiver Station in GSM or CDMA, referred to as " BTS "), also can be the base station (NodeB) in WCDMA, can also be evolved base station (the evolved Node B in LTE, referred to as " eNB " or " e-NodeB "), the present invention is to this and be not construed as limiting.

Fig. 1 shows the indicative flowchart of the method 100 of the reporting channel quality instruction CQI according to the embodiment of the present invention, and the method 100 can be performed by user equipment (UE), and as shown in Figure 1, the method 100 comprises:

S110, according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, true directional base station reports CQI, and the power request adjustment amount in this first time period is user equipment (UE) adjustment amount sum to the transmitting power of this base station requests in this first time period;

S120, reports CQI to this base station.

Therefore, according to the method reporting CQI of the embodiment of the present invention, by asking the accumulation adjustment result of base station to transmitting power and the signal to noise ratio variable quantity of pilot channel according to this UE in a period of time, determine whether to report CQI to this base station, UE can be made dynamically to report CQI according to the virtual condition of pilot channel, both the redundancy overhead brought by arranging less CQI report cycle can have been avoided, base station can be made again can to keep CQI prediction more accurately, thus while saving system resource, improve the accuracy that base station is predicted CQI, improve performance and the Consumer's Experience of system.

In embodiments of the present invention, this UE can determine signal to noise ratio SIR variable quantity and the power request adjustment amount of pilot channel in first time period, and according to the signal to noise ratio SIR variable quantity of this pilot channel and power request adjustment amount, determine whether the CQI reporting current time to base station.Wherein, this pilot channel can be Common Pilot Channel (Common Pilot Channel, referred to as " CPICH "), can also be other pilot channel.Power request adjustment amount in this first time period is that this UE asks this base station to the accumulation adjustment amount of transmitting power in this first time period.Particularly, this UE can ask this base station to adjust transmitting power by sending TPC to this base station, and the power request adjustment amount of this first time period is the power adjustment sum that TPC that this UE sends to this base station in this first time period is corresponding.Such as, the TPC command set that this UE sends in first time period is { 0, 1, 1, 0, 1, 1}, and this base station and UE side are arranged this base station and to be reduced or the amplitude that raises transmitting power is 1dB at every turn, then " 0 " represents that transmitting power is reduced 1dB by this base station of request, " 1 " represents that transmitting power is improved 1dB by this base station of request, like this, in this first time period, this UE asks this base station to the accumulation adjustment amount sum of transmitting power for transmitting power is raised 2dB by this base station of request, namely the power request adjustment amount of this UE in this first time period is 2dB, but the embodiment of the present invention is not limited thereto.

Alternatively, this UE can when the absolute value of this power request adjustment amount be greater than the absolute value of this SIR variable quantity, and true directional base station reports CQI; This UE also can when the difference of the absolute value of the absolute value of this power request adjustment amount and this SIR variable quantity be greater than predetermined threshold value, and true directional base station reports CQI; This UE can also this power request adjustment amount and this SIR variable quantity and when being greater than zero, true directional base station reports CQI, but the embodiment of the present invention is not limited thereto.

Alternatively, this UE can all determine the signal to noise ratio variable quantity of power request adjustment amount in this first time period and pilot channel in each moment, and determines whether to report CQI to base station according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, alternatively, the number of times of the signal to noise ratio variable quantity of power request adjustment amount and pilot channel is determined in order to reduce UE, reduce the power overhead of this UE, this UE also can arrange the first report cycle of the signal to noise ratio variable quantity determining power request adjustment amount in first time period and pilot channel, and when this first report cycle meets, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, determine whether to report CQI to base station, correspondingly, S110, according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, comprise:

S110a, when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, determines to report CQI to this base station.

Alternatively, because this UE is according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and this pilot channel, determine whether to report CQI, therefore, this UE all may not report CQI to this base station in a long time, and after the long period, comparatively big error may be there is in the CQI of this base station prediction with the CQI of this UE reality, therefore, alternatively, this UE can also arrange the second report cycle, and this second report cycle is greater than this first report cycle and is greater than the time interval of this first time period.Like this, when this first report cycle is met, this UE can determine whether to report CQI according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel; And when this second report cycle is met, this UE all directly reports the CQI in this moment.Alternatively, as another embodiment, the method 100 also comprises:

S130, when the second report cycle is met, reports CQI to this base station, and this second report cycle is greater than this first report cycle.

Alternatively, this first time period represents and reports time period the moment of CQI to current time by the last time, wherein, this last time reports the moment of CQI can be the moment determining to report CQI according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, namely can be the moment that the first report cycle is met; Alternatively, this last time reports the moment of CQI also can be the moment that this second report cycle is met; Alternatively, as another embodiment, this first time period also can represent the minimum time section moment of being met by this second report cycle to current time, namely this first time period represents the time period between all moment middle distance current times that this second report cycle is met nearest moment to current time, but the embodiment of the present invention is not limited thereto.

Alternatively, as another embodiment, this UE can also determine CQI variable quantity according to the signal to noise ratio SIR variable quantity of pilot channel, and according to this CQI variable quantity and power request adjustment amount, determines whether to report CQI to base station.Correspondingly, as shown in Figure 2, S110, according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, determines to report CQI to this base station, comprising:

S111, according to the signal to noise ratio variable quantity of pilot channel in this first time period, determines the CQI variable quantity in this first time period;

S112, according to the power request adjustment amount in this first time period and CQI variable quantity, determines to report CQI to this base station.

This UE can when the absolute value of this power request adjustment amount be greater than the absolute value of this CQI variable quantity, and true directional base station reports CQI; Or this UE also can when the difference of the absolute value of the absolute value of this power request adjustment amount and this CQI variable quantity be greater than predetermined threshold value, true directional base station reports CQI; Or this UE can also this power request adjustment amount and this CQI variable quantity and when being greater than zero, true directional base station reports CQI, but the embodiment of the present invention is not limited thereto.

Alternatively, as another embodiment, S112, according to the power request adjustment amount in first time period and this CQI variable quantity, determines to report CQI to this base station, comprising:

S112a, when the difference of the power request adjustment amount in this first time period and this CQI variable quantity is higher than the first thresholding, determines to report CQI to this base station.

Alternatively, as another embodiment, in order to the CQI making base station can predict this UE more accurately, the method 100 also comprises:

S140, reports the noise reference information of this UE to this base station, so that the CQI penalty coefficient of this UE is determined according to this noise reference information in this base station.

Wherein, this noise reference information can be the value of the noise-related parameter of pilot channel required when determining CQI variable quantity.Particularly, the time period this first time period represents by a certain initial time in above-described embodiment to current time, this UE can pass through inner-loop power control principle, draws following equation:

Δ(10×log(SIR))=-10×log(ΔP×No/No′) (1)

Wherein, SIR represents the channel SNRs of the initial time of this first time period, Δ (10 × log (SIR)) represents 10 × log (SIR) variable quantity in this first time period, No and No ' is illustrated respectively in the noise power spectral density of the channel of this initial time and current time, Δ P represents the actual change amount of the transmitting power of base station in this first time period, Δ P=Ec/Ec ', wherein, this Ec and Ec ' is illustrated respectively in the transmitting power of the base station of this initial time and current time.

In addition, equal variable quantity and the formula (1) of the Ec/Nt of CPICH according to the variation delta (CQI) of CQI in first time period, the variable quantity of this CQI can be determined by following formula:

Δ(CQI)=-10×log(ΔP)+10log((Nt/No)/(Nt′/No′)) (2)

Wherein, Nt and Nt ' is illustrated respectively in the noise power spectral density after the removal orthogonalization interference of the channel of this initial time and current time, as can be seen from formula (2), this noise reference information can be the value of the expression formula 10log ((Nt/No)/(Nt '/No ')) in formula (2).Should be understood that the embodiment of the present invention can adopt different derivation methods and method for expressing, therefore, this noise reference information can be the numerical value of the noise out of Memory of being correlated with or other expression formula, and the embodiment of the present invention is not limited thereto.

Above composition graphs 1 and Fig. 2, describes the method reporting CQI according to the embodiment of the present invention in detail from the angle of UE, below in conjunction with Fig. 3 and Fig. 4, describes the method reporting CQI according to the embodiment of the present invention in detail from the angle of base station.

Fig. 3 shows the indicative flowchart of the method 200 of reporting channel quality instruction CQI according to another embodiment of the present invention, and the method can be performed by base station, and as shown in Figure 3, the method 200 comprises:

S210, detect the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, time period this first time period represented by the first moment to current time, the power request adjustment amount in this first time period is this UE adjustment amount sum to the transmitting power of base station requests in this first time period;

S220, when the CQI that this UE reports not detected, the power request adjustment amount in the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior.

In embodiments of the present invention, because UE determines whether to report CQI to base station according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, therefore, this base station does not also know that this UE can report CQI in which in moment, and needs to detect this UE and whether reported CQI.If this base station detects the CQI that this UE reports, then this base station is dispatched this UE according to this CQI; If this base station does not detect the CQI that this UE reports, then this base station is according to the CQI reported before this UE and the power request adjustment amount of this UE in this first time period, predicts the CQI of this UE at current time, and dispatches this UE according to the CQI of this prediction.

Alternatively, this base station can all be detected UE in each moment and whether report CQI, this base station side also can preset with UE side the first report cycle determining to report CQI according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, and when this first report cycle is met, this base station is detected this UE and whether has been reported CQI.Alternatively, S210, detects the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, comprising:

S210a, when the first report cycle is met, detects the CQI that this UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

Alternatively, this base station side can also preset the second report cycle with this UE side, when this second report cycle is met, this UE all reports CQI, and this base station directly can receive CQI that this UE reports and without the need to detecting when this second report cycle is met, alternatively, as another embodiment, the method 200 also comprises:

S230, when the second report cycle is met, receives the CQI that this UE reports, and this second report cycle is greater than this first report cycle.

Alternatively, to determine whether to report the initial time of the first time period of CQI corresponding with UE, the CQI that the first reception that this base station can be met according to this second report cycle arrives and the power request adjustment amount in this first time period, the CQI of prediction current time; Alternatively, as another embodiment, this base station also can receive the power request adjustment amount in CQI and this first time period that this UE reports according to the last time, the CQI of prediction current time, but the embodiment of the present invention is not limited thereto.

Alternatively, this first moment represents the moment that this second report cycle is met.

Alternatively, as another embodiment, this first moment represents that the last time receives the moment of the CQI that this UE reports.

Alternatively, as another embodiment, as shown in Figure 4, the method 200 also comprises:

S240, receives the noise reference information that this UE sends;

Correspondingly, the power request adjustment amount in S220, the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior, comprising:

S221, the power request adjustment amount in the CQI reported in this first moment according to this UE, this first time period and this noise reference information, the CQI in determine this UE moment in this prior.

Should be understood that the size of the sequence number of above-mentioned each process and do not mean that the priority of execution sequence, the execution sequence of each process should be determined with its function and internal logic, and should not form any restriction to the implementation process of the embodiment of the present invention.

Above composition graphs 1 to Fig. 4, describes the method reporting CQI according to the embodiment of the present invention in detail, below in conjunction with Fig. 5 to Figure 10, describes the base station according to the embodiment of the present invention and subscriber equipment.

Fig. 5 shows the schematic block diagram of the user equipment (UE) 300 according to the embodiment of the present invention, and this UE300 comprises:

Determination module 310, for the signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, the power request adjustment amount in this first time period is user equipment (UE) adjustment amount sum to the transmitting power of this base station requests in this first time period;

Reporting module 320, for reporting CQI to this base station.

Therefore, according to the subscriber equipment of the embodiment of the present invention, by asking the accumulation adjustment result of base station to transmitting power and the signal to noise ratio variable quantity of pilot channel according to this UE in a period of time, determine whether to report CQI to this base station, UE can be made dynamically to report CQI according to the virtual condition of pilot channel, both the redundancy overhead brought by arranging less CQI report cycle can have been avoided, base station can be made again can to keep CQI prediction more accurately, thus while saving system resource, improve the accuracy that base station is predicted CQI, improve performance and the Consumer's Experience of system.

Alternatively, this determination module 310, specifically for when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, is determined to report CQI to this base station.

Alternatively, as another embodiment, this reporting module 320 also for when the second report cycle is met, reports CQI to this base station, and this second report cycle is greater than this first report cycle.

Alternatively, this first time period represents the minimum time section moment of being met by this second report cycle to current time.

Alternatively, as another embodiment, this first time period represents and reports time period the moment of CQI to current time by the last time.

Alternatively, as another embodiment, as shown in Figure 6, this determination module 310 comprises:

First determining unit 311, for the signal to noise ratio variable quantity according to pilot channel in this first time period, determines the CQI variable quantity in this first time period;

Second determining unit 312, for this CQI variable quantity determined according to the power request adjustment amount in this first time period and this first determining unit 311, determines to report CQI to this base station.

Alternatively, as another embodiment, this second determining unit 312, specifically for when the difference of this CQI variable quantity that the power request adjustment amount in this first time period and this first determining unit 311 are determined is higher than the first thresholding, is determined to report CQI to this base station.

Alternatively, this reporting module 320 also for reporting the noise reference information of this UE to this base station so that the CQI penalty coefficient of this UE is determined according to this noise reference information in this base station.

May correspond in the subscriber equipment reported in the method for CQI according to the embodiment of the present invention according to the subscriber equipment 300 of the embodiment of the present invention, and above-mentioned and other operation of the modules in subscriber equipment 300 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 and Fig. 2, for simplicity, do not repeat them here.

Fig. 7 shows the schematic block diagram of the base station 400 according to the embodiment of the present invention, and this base station 400 comprises:

Detection module 410, for detecting the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, this first time period represents by the time period of the first moment to current time, and the power request adjustment amount in this first time period is this UE adjustment amount sum to the transmitting power of base station requests in this first time period;

Determination module 420, during for CQI that this UE reports not detected when this detection module 410, the power request adjustment amount in the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior.

Therefore, according to the base station of the embodiment of the present invention, by asking the accumulation adjustment result of base station to transmitting power and the signal to noise ratio variable quantity of pilot channel according to this UE in a period of time, determine whether to report CQI to this base station, UE can be made dynamically to report CQI according to the virtual condition of pilot channel, both the redundancy overhead brought by arranging less CQI report cycle can have been avoided, base station can be made again can to keep CQI prediction more accurately, thus while saving system resource, improve the accuracy that base station is predicted CQI, improve performance and the Consumer's Experience of system.

Alternatively, this detection module 410, specifically for when the first report cycle is met, detects the CQI that this UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

Alternatively, as another embodiment, as shown in Figure 8, this base station 400 also comprises:

First receiver module 430, for when the second report cycle is met, receives the CQI that this UE reports, and this second report cycle is greater than this report cycle.

Alternatively, as another embodiment, this base station 400 also comprises:

Second receiver module 440, for receiving the noise reference information that this UE sends;

This noise reference information that this determination module 420 receives specifically for CQI, power request adjustment amount in this first time period and this second receiver module 440 reported in this first moment according to this UE, the CQI in determine this UE moment in this prior.

May correspond in the base station reported in the method for CQI according to the embodiment of the present invention according to the base station 400 of the embodiment of the present invention, and above-mentioned and other operation of the modules in base station 400 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 3 and Fig. 4, for simplicity, do not repeat them here.

Fig. 9 shows the schematic block diagram of user equipment (UE) 500 according to another embodiment of the present invention, and this UE500 comprises processor 510, memory 520, bus system 530 and transmitter 540.Wherein, processor 510, memory 520 are connected by bus system 530 with transmitter 540, this memory 520 is for storing instruction, this processor 510 is by this bus system 530, call this instruction stored in this memory 520, for the signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determine to report CQI to this base station, the power request adjustment amount in this first time period is user equipment (UE) adjustment amount sum to the transmitting power of this base station requests in this first time period; This transmitter 540 is for reporting CQI to this base station.

Should understand, in embodiments of the present invention, this processor 510 can be CPU (Central Processing Unit, referred to as " CPU "), this processor 510 can also be other general processors, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components etc.The processor etc. of general processor can be microprocessor or this processor also can be any routine.

This memory 520 can comprise read-only memory and random access memory, and provides instruction and data to processor 510.A part for memory 520 can also comprise nonvolatile RAM.Such as, the information of all right storage device type of memory 520.

This bus system 530, except comprising data/address bus, can also comprise power bus, control bus and status signal bus in addition etc.But for the purpose of clearly demonstrating, in the drawings various bus is all designated as bus system 530.

In implementation procedure, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in processor 510 or software form.Step in conjunction with the method disclosed in the embodiment of the present invention can directly be presented as that hardware processor is complete, or hardware in purpose processor and software module combination complete.Software module can be positioned at random asccess memory, flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is positioned at memory 520, and processor 510 reads the information in memory 520, completes the step of said method in conjunction with its hardware.For avoiding repetition, be not described in detail here.

Alternatively, this processor 510, specifically for when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in this first time period and pilot channel, is determined to report CQI to this base station.

Alternatively, as another embodiment, this transmitter 540 also for when the second report cycle is met, reports CQI to this base station, and this second report cycle is greater than this first report cycle.

Alternatively, as another embodiment, this processor 510 is also for the signal to noise ratio variable quantity according to pilot channel in this first time period, determine the CQI variable quantity in this first time period, and according to this CQI variable quantity that the power request adjustment amount in this first time period and this processor 510 are determined, determine to report CQI to this base station.

Alternatively, as another embodiment, this processor 510, specifically for when the difference of the power request adjustment amount in this first time period and this CQI variable quantity is higher than the first thresholding, is determined to report CQI to this base station.

Alternatively, as another embodiment, this transmitter 540 also for reporting the reference interference ratio of this UE to this base station so that the CQI penalty coefficient of this UE is determined according to this reference interference ratio in this base station.

May correspond in the subscriber equipment reported in the method for CQI according to the embodiment of the present invention according to the subscriber equipment 500 of the embodiment of the present invention, and above-mentioned and other operation of the modules in subscriber equipment 500 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 and Fig. 2, for simplicity, do not repeat them here.

Figure 10 shows the schematic block diagram of base station 600 according to another embodiment of the present invention, and this base station 600 comprises: processor 610, memory 620 and bus system 630.Wherein, processor 610 is connected by bus system 630 with memory 620, this memory 620 is for storing instruction, this processor 610 is by this bus system 630, call this instruction stored in this memory 620, for: detect the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, this first time period represents by the time period of the first moment to current time, power request adjustment amount in this first time period is this UE adjustment amount sum to the transmitting power of base station requests in this first time period, and when the CQI that this UE reports not detected, power request adjustment amount in the CQI reported in this first moment according to this UE and this first time period, the CQI in determine this UE moment in this prior.

Should understand, in embodiments of the present invention, this processor 610 can be CPU (Central Processing Unit, referred to as " CPU "), this processor 610 can also be other general processors, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), ready-made programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components etc.The processor etc. of general processor can be microprocessor or this processor also can be any routine.

This memory 620 can comprise read-only memory and random access memory, and provides instruction and data to processor 610.A part for memory 620 can also comprise nonvolatile RAM.Such as, the information of all right storage device type of memory 620.

This bus system 630, except comprising data/address bus, can also comprise power bus, control bus and status signal bus in addition etc.But for the purpose of clearly demonstrating, in the drawings various bus is all designated as bus system 630.

In implementation procedure, each step of said method can be completed by the instruction of the integrated logic circuit of the hardware in processor 610 or software form.Step in conjunction with the method disclosed in the embodiment of the present invention can directly be presented as that hardware processor is complete, or hardware in purpose processor and software module combination complete.Software module can be positioned at random asccess memory, flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is positioned at memory 620, and processor 610 reads the information in memory 620, completes the step of said method in conjunction with its hardware.For avoiding repetition, be not described in detail here.

Alternatively, this processor 610, specifically for when the first report cycle is met, detects the CQI that this UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

Alternatively, as another embodiment, this base station 600 also comprises receiver 640, for when the second report cycle is met, receives the CQI that this UE reports, and this second report cycle is greater than this first report cycle.

Alternatively, as another embodiment, this base station 600 also comprises receiver 640, for receiving the noise reference information that this UE sends;

Correspondingly, this noise reference information that this processor 610 receives specifically for CQI, power request adjustment amount in this first time period and this receiver 640 reported in this first moment according to this UE, the CQI in determine this UE moment in this prior.

May correspond in the base station reported in the method for CQI according to the embodiment of the present invention according to the base station 600 of the embodiment of the present invention, and above-mentioned and other operation of the modules in base station 600 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 3 and Fig. 4, for simplicity, do not repeat them here.

Should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation describing affiliated partner, and expression can exist three kinds of relations.Such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".

Those of ordinary skill in the art can recognize, in conjunction with the various method steps described in embodiment disclosed herein and unit, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe step and the composition of each embodiment in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Those of ordinary skill in the art can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.

Those skilled in the art can be well understood to, and for convenience of description and succinctly, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed coupling each other or direct-coupling or communication connection can be indirect coupling by some interfaces, device or unit or communication connection, also can be electric, machinery or other form connect.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of embodiment of the present invention scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, and also can be that the independent physics of unit exists, also can be that two or more unit are in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is in essence in other words to the part that prior art contributes, or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-Only Memory, referred to as " ROM "), random access memory (Random Access Memory, referred to as " RAM "), magnetic disc or CD etc. various can be program code stored medium.

The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect amendment or the replacement of various equivalence easily, these amendments or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims

1. a method of reporting channel quality instruction CQI, is characterized in that, comprising:

According to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, true directional base station reports CQI, and the power request adjustment amount in described first time period is user equipment (UE) adjustment amount sum to the transmitting power of described base station requests in described first time period;

CQI is reported to described base station.

2. method according to claim 1, is characterized in that, the described signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determines to report CQI to described base station, comprising:

When the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in described first time period and pilot channel, determine to report CQI to described base station.

3. method according to claim 2, is characterized in that, described method also comprises:

When the second report cycle is met, report CQI to described base station, described second report cycle is greater than described first report cycle.

4. method according to claim 3, is characterized in that, described first time period represents the minimum time section moment of being met by described second report cycle to current time.

5. according to the method in any one of claims 1 to 3, it is characterized in that, described first time period represents and reports time period the moment of CQI to current time by the last time.

6. method according to any one of claim 1 to 5, is characterized in that, the described signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determines to report CQI to described base station, comprising:

According to the signal to noise ratio variable quantity of pilot channel in described first time period, determine the CQI variable quantity in described first time period;

According to the power request adjustment amount in described first time period and CQI variable quantity, determine to report CQI to described base station.

7. method according to claim 6, is characterized in that, described according to the power request adjustment amount in described first time period and described CQI variable quantity, determines to report CQI to described base station, comprising:

When the difference of the power request adjustment amount in described first time period and described CQI variable quantity is higher than the first thresholding, determine to report CQI to described base station.

8. method according to any one of claim 1 to 7, is characterized in that, described method also comprises:

The noise reference information of described UE is reported, so that the CQI penalty coefficient of described UE is determined according to described noise reference information in described base station to described base station.

9. a method of reporting channel quality instruction CQI, is characterized in that, comprising:

Detect the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, time period described first time period represented by the first moment to current time, the power request adjustment amount in described first time period is described UE adjustment amount sum to the transmitting power of base station requests in described first time period;

When the CQI that described UE reports not detected, the power request adjustment amount in the CQI reported in described first moment according to described UE and described first time period, determines the CQI of described UE at described current time.

10. method according to claim 9, is characterized in that, the CQI that described detection user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, comprising:

When the first report cycle is met, detect the CQI that described UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

11. methods according to claim 10, is characterized in that, described method also comprises:

When the second report cycle is met, receive the CQI that described UE reports, described second report cycle is greater than described first report cycle.

12. methods according to claim 11, is characterized in that, described first moment represents the moment that described second report cycle is met.

13. methods according to any one of claim 9 to 12, it is characterized in that, described first moment represents that the last time receives the moment of the CQI that described UE reports.

14. methods according to any one of claim 9 to 13, it is characterized in that, described method also comprises:

Receive the noise reference information that described UE sends;

Power request adjustment amount in the described CQI that reports in described first moment according to described UE and described first time period, determine the CQI of described UE at described current time, comprising:

Power request adjustment amount in the CQI reported in described first moment according to described UE, described first time period and described noise reference information, determine the CQI of described UE at described current time.

15. 1 kinds of user equipment (UE)s, is characterized in that, comprising:

Determination module, for the signal to noise ratio variable quantity according to the power request adjustment amount in first time period and pilot channel, determine to report CQI to described base station, the power request adjustment amount in described first time period is user equipment (UE) adjustment amount sum to the transmitting power of described base station requests in described first time period;

Reporting module, for reporting CQI to described base station.

16. UE according to claim 15, it is characterized in that, described determination module, specifically for when the first report cycle is met, according to the signal to noise ratio variable quantity of the power request adjustment amount in described first time period and pilot channel, is determined to report CQI to described base station.

17. UE according to claim 16, is characterized in that, described reporting module also for when the second report cycle is met, reports CQI to described base station, and described second report cycle is greater than described first report cycle.

18. UE according to claim 17, is characterized in that, described first time period represents the minimum time section moment of being met by described second report cycle to current time.

19., according to claim 15 to the UE according to any one of 17, is characterized in that, described first time period represents and reports time period the moment of CQI to current time by the last time.

20., according to claim 15 to the UE according to any one of 19, is characterized in that, described determination module comprises:

First determining unit, for the signal to noise ratio variable quantity according to pilot channel in described first time period, determines the CQI variable quantity in described first time period;

Second determining unit, for the described CQI variable quantity determined according to the power request adjustment amount in described first time period and described first determining unit, determines to report CQI to described base station.

21. UE according to claim 20, it is characterized in that, described second determining unit, specifically for when the difference of the described CQI variable quantity that the power request adjustment amount in described first time period and described first determining unit are determined is higher than the first thresholding, is determined to report CQI to described base station.

22., according to claim 15 to the UE according to any one of 21, is characterized in that, described reporting module also for reporting the noise reference information of described UE to described base station so that the CQI penalty coefficient of described UE is determined according to described noise reference information in described base station.

23. 1 kinds of base stations, is characterized in that, comprising:

Detection module, for detecting the CQI that user equipment (UE) reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel, described first time period represents by the time period of the first moment to current time, and the power request adjustment amount in described first time period is described UE adjustment amount sum to the transmitting power of base station requests in described first time period;

Determination module, during for CQI that described UE reports not detected when described detection module, the power request adjustment amount in the CQI reported in described first moment according to described UE and described first time period, determines the CQI of described UE at described current time.

24. base stations according to claim 23, it is characterized in that, described detection module, specifically for when the first report cycle is met, detects the CQI that described UE reports according to the signal to noise ratio variable quantity of the power request adjustment amount in first time period and pilot channel.

25. base stations according to claim 24, is characterized in that, described base station also comprises:

First receiver module, for when the second report cycle is met, receives the CQI that described UE reports, and described second report cycle is greater than described first report cycle.

26. base stations according to claim 25, is characterized in that, described first moment represents the moment that described second report cycle is met.

27. base stations according to any one of claim 23 to 25, it is characterized in that, described first moment represents that the last time receives the moment of the CQI that described UE reports.

28. base stations according to any one of claim 23 to 27, it is characterized in that, described base station also comprises:

Second receiver module, for receiving the noise reference information that described UE sends;

The described noise reference information that described determination module receives specifically for the power request adjustment amount in the CQI reported in described first moment according to described UE, described first time period and described second receiver module, determines the CQI of described UE at described current time.