CN104641584B

CN104641584B - Reporting channel quality indicates the method and its device of CQI

Info

Publication number: CN104641584B
Application number: CN201380000171.8A
Authority: CN
Inventors: 李秉肇; 张丹丹
Original assignee: Haimen Chuang Hao Industrial Design Co Ltd
Current assignee: Haimen Chuanghao Industrial Design Co ltd
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2018-05-01
Anticipated expiration: 2033-02-26
Also published as: CN104641584A

Abstract

The invention discloses the method and its device of a kind of reporting channel quality instruction CQI, this method includes：According to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period, true directional base station reports CQI, the power request adjustment amount in the first time period for user equipment (UE) in the first time period to the sum of adjustment amount of transmission power of the base station requests；CQI is reported to the base station.The method and its device that report CQI of the embodiment of the present invention, UE is enabled to dynamically to report CQI according to the virtual condition of pilot channel, both can be to avoid by the redundancy overhead for setting less CQI report cycles and bringing, base station can be enabled to keep accurate CQI to predict again, so as to while system resource is saved, the accuracy that CQI is predicted in base station is improved, improves the performance and user experience of system.

Description

Reporting channel quality indicates the method and its device of CQI

Technical field

The present embodiments relate to the communications field, and more particularly, to reporting channel quality instruction CQI method and Its device.

Background technology

User equipment（User Equipment, referred to as " UE "）Signal-to-noise ratio based on downlink signal（Signal-to- Interference Ratio, referred to as " SIR "）Value determine channel quality indicate（Channel Quality Indicator, referred to as " CQI "）, and the CQI is reported to base station to indicate the channel quality condition of UE receptions periodically, So that the base station is scheduled according to channel quality.The report cycle of CQI can configure, and the less CQI cycles can make The channel quality information of UE can be obtained in time by obtaining base station, but can produce larger uplink signaling traffic load；And after increasing the cycle Uplink signaling traffic load can be reduced, but base station can be caused to obtain UE channel quality informations in time, therefore, it is necessary to study how In the case of larger CQI report cycles, base station remains to obtain the channel quality information of UE in time.

During inner-loop power control, UE to base station by sending transmission power control（Transmitter Power Control, referred to as " TPC "）Order to 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 "）Transmission power, to keep stable downlink in channel or noise change Target SIR.UE adjusts command word to base-station transmitting-power, can include 0 and 1,0 and represent to decline, and 1 represents to rise.Base station according to The power adjustment commands word adjusts the transmission power of DPCCH or F-DPCH.For example, when channel degradation, UE can notify base station The transmission power of DPCCH is improved, so that the target SIR of the received DPCCH of UE side joints is remained unchanged.

Transmission power change in view of DPCCH or F-DPCH is related to UE variations, and base station can basis The changed power of DPCCH is modified the CQI that UE is reported.In this way, can be that UE configures larger CQI report cycles, base station CQI can be modified by DPCCH changed powers, so that estimation of the base station to the CQI of the UE can be protected with actual CQI Hold less error.However, there are following defect for the above-mentioned prior art：First, the change of the transmission power of DPCCH in some cases Change and difference occurs in the actual change of CQI, for example, the transmission power of DPCCH is adjusted to the upper of transmission power by base station Limit or lower limit, even if the channel status of UE changes again and UE sends TPC command to base station, base station sends DPCCH to the UE Power will not change, at this time if UE does not still report CQI to base station, base station according further to the DPCCH transmitting work( Rate estimates the CQI of the UE, then can there are large error with actual CQI；Secondly, different UE is determining DPCCH's May be used during SIR and CQI it is different with the relevant parameter value of noise, for example, noise power spectral density N₀, remove orthogonalization and do Power spectral density Nt etc. is caused after disturbing, in this way, the change of the transmission power of DPCCH may not accurately reflect that out CQI Variable quantity, and base station considers this factor, therefore the CQI penalty coefficients that base station determines are inaccurate so that base station It is poor according to the default CQI precision of the CQI penalty coefficients.

The content of the invention

The embodiment of the present invention provides a kind of method, user equipment and the base station of reporting channel quality instruction CQI, enables to UE dynamically reports CQI according to the virtual condition of pilot channel.

First aspect, there is provided a kind of method of reporting channel quality instruction CQI, this method include：According at the first time The signal-to-noise ratio variable quantity of power request adjustment amount and pilot channel in section, true directional base station reports CQI, in the first time period Power request adjustment amount for user equipment (UE) in transmission power from the first time period to the base station requests adjustment amount it With；CQI is reported to the base station.

With reference to first aspect, in the first possible implementation, this is according to the power request tune in first time period The signal-to-noise ratio variable quantity of whole amount and pilot channel, determines to report CQI to the base station, including：When the first report cycle is met When, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in the first time period, determine on the base station Report CQI.

The possible implementation of with reference to first aspect the first, in second of possible implementation, this method is also Including：When the second report cycle is met, CQI is reported to the base station, which is more than this and first reports week Phase.

Second of possible implementation with reference to first aspect, in the third possible implementation, this first when Between segment table show at the time of be met by second report cycle to the minimum time section current time.

With reference to first aspect or with reference to first aspect the first or second of possible implementation, in the 4th kind of possibility Implementation in, to the period current time at the time of which represents to report CQI by the last time.

With reference to first aspect or with reference to first aspect the first to any of the 4th kind of possible implementation can The implementation of energy, in the 5th kind of possible implementation, this is according to the power request adjustment amount in first time period with leading The signal-to-noise ratio variable quantity of frequency channel, determines to report CQI to the base station, including：According to the letter of pilot channel in the first time period Make an uproar than variable quantity, determine the CQI variable quantities in the first time period；According to the power request adjustment amount in the first time period with CQI variable quantities, determine to report CQI to the base station.

The 5th kind of possible implementation with reference to first aspect, in the 6th kind of possible implementation, which should Power request adjustment amount and the CQI variable quantities in first time period, determine to report CQI to the base station, including：When this first when Between power request adjustment amount in section and the difference of the CQI variable quantities when being higher than the first thresholding, determine to report CQI to the base station.

With reference to first aspect or with reference to first aspect the first to any of the 6th kind of possible implementation can The implementation of energy, in the 7th kind of possible implementation, this method further includes：The noise reference of the UE is reported to the base station Information, so that the base station determines according to the noise reference information CQI penalty coefficients of the UE.

Second aspect, there is provided a kind of method of reporting channel quality instruction CQI, this method include：Detect user equipment The CQI that UE is reported according to the power request adjustment amount in first time period and the signal-to-noise ratio variable quantity of pilot channel, this first when Between segment table show that by the first moment to the period current time the power request adjustment amount in the first time period is the UE To the sum of adjustment amount of transmission power of base station requests in the first time period；When being not detected by the CQI that the UE is reported, root According to power request adjustment amounts of the UE in the CQI and the first time period that first moment reports, the UE is determined in this prior The CQI at moment.

With reference to second aspect, in the first possible implementation, the detection user equipment (UE) is according to first time period The CQI that interior power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel report, including：When the first report cycle is expired When sufficient, detect what the UE was reported according to the power request adjustment amount in first time period and the signal-to-noise ratio variable quantity of pilot channel CQI。

With reference to the first possible implementation of second aspect, in second of possible implementation, this method is also Including：When the second report cycle is met, the CQI that the UE is reported is received, which is more than this and first reports Cycle.

With reference to second of possible implementation of second aspect, in the third possible implementation, this first when At the time of quarter represents that second report cycle is met.

With reference to the first or second of possible implementation of second aspect or combination second aspect, in the 4th kind of possibility Implementation in, which represents the last time at the time of receive the CQI that the UE is reported.

With reference to second aspect or combine second aspect the first to any of the 4th kind of possible implementation can The implementation of energy, in the 5th kind of possible implementation, this method further includes：Receive the noise reference letter of UE transmissions Breath；The power request adjustment amount according to the UE in CQI that first moment reports and the first time period, determines that the UE exists The CQI at the current time, including：According to power request tune of the UE in CQI that first moment reports, the first time period Whole amount and the noise reference information, the CQI at determine UE moment in this prior.

The third aspect, there is provided a kind of user equipment (UE), the UE include：Determining module, for according in first time period Power request adjustment amount and pilot channel signal-to-noise ratio variable quantity, determine to report CQI to the base station, in the first time period Power request adjustment amount for user equipment (UE) in the first time period to the sum of adjustment amount of transmission power of the base station requests； Reporting module, for reporting CQI to the base station.

With reference to the third aspect, in the first possible implementation, which is specifically used for when first reports week When phase is met, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in the first time period, determine CQI is reported to the base station.

With reference to the first possible implementation of the third aspect, in second of possible implementation, this reports mould Block is additionally operable to, when the second report cycle is met, CQI be reported to the base station, which is more than this and first reports Cycle.

With reference to second of possible implementation of the third aspect, in the third possible implementation, this first when Between segment table show at the time of be met by second report cycle to the minimum time section current time.

With reference to the first or second of possible implementation of the third aspect or the combination third aspect, in the 4th kind of possibility Implementation in, to the period current time at the time of which represents to report CQI by the last time.

With reference to the third aspect or combine the third aspect the first to any of the 4th kind of possible implementation can The implementation of energy, in the 5th kind of possible implementation, which includes：First determination unit, should for basis The signal-to-noise ratio variable quantity of pilot channel in first time period, determines the CQI variable quantities in the first time period；Second determines list Member, for the CQI variable quantities determined according to the power request adjustment amount in the first time period and first determination unit, really Orient the base station and report CQI.

With reference to the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation, this is second true Order member is specifically used for the CQI variable quantities determined when the power request adjustment amount in the first time period with the determination unit When difference is higher than the first thresholding, determine to report CQI to the base station.

With reference to the third aspect or combine the third aspect the first to any of the 6th kind of possible implementation can The implementation of energy, in the 7th kind of possible implementation, which is additionally operable to report the noise of the UE to the base station Reference information, so that the base station determines according to the noise reference information CQI penalty coefficients of the UE.

Fourth aspect, there is provided a kind of base station, the base station include：Detection module, for detecting user equipment (UE) according to The CQI that the signal-to-noise ratio variable quantity of power request adjustment amount and pilot channel in one period reports, the first time period represent By the first moment to the period current time, power request adjustment amount in the first time period for the UE this first To the sum of adjustment amount of transmission power of base station requests in period；Determining module, for being not detected by this when the detection module During the CQI that UE is reported, according to power request adjustment amounts of the UE in CQI that first moment reports and the first time period, The CQI at determine UE moment in this prior.

With reference to fourth aspect, in the first possible implementation, which is specifically used for when first reports week When phase is met, the UE is detected according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period The CQI reported.

With reference to the first possible implementation of fourth aspect, in second of possible implementation, the base station is also Including：First receiving module, for when the second report cycle is met, receiving the CQI that the UE is reported, this second reports week Phase is more than first report cycle.

With reference to second of possible implementation of fourth aspect, in the third possible implementation, this first when At the time of quarter represents that second report cycle is met.

With reference to the first or second of possible implementation of fourth aspect or combination fourth aspect, in the 4th kind of possibility Implementation in, which represents the last time at the time of receive the CQI that the UE is reported.

With reference to fourth aspect or combine fourth aspect the first to any of the 4th kind of possible implementation can The implementation of energy, in the 5th kind of possible implementation, which further includes：Second receiving module, for receiving the UE The noise reference information of transmission；The determining module is specifically used for CQI, the first time reported according to the UE at first moment The noise reference information that power request adjustment amount and second receiving module in section receive, determines UE moment in this prior CQI.

Based on above-mentioned technical proposal, the method for reporting CQI, user equipment and base station provided in an embodiment of the present invention, pass through The signal-to-noise ratio variable quantity of result and pilot channel is adjusted according to accumulation of the UE request base stations to transmission power in a period of time, really It is fixed whether to the base station to report CQI, enable to UE dynamically to report CQI according to the virtual condition of pilot channel, can both keep away Exempt from the redundancy overhead by setting less CQI report cycles and bringing, and base station can be enabled to keep accurate CQI pre- Survey, so that while system resource is saved, improve the accuracy that CQI is predicted in base station, improve performance and the user of system Experience.

Brief description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to the embodiment of the present invention or the prior art Attached drawing is briefly described needed in description, it should be apparent that, drawings described below is only the present invention's Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

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

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

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

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

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

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

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

Fig. 8 is another schematic block diagram of base station according to embodiments 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 attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made Example is applied, should all belong to the scope of protection of the invention.

It is to be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, such as：Global system for mobile telecommunications （Global System of Mobile communication, referred to as " GSM "）System, CDMA（Code Division Multiple Access, referred to as " CDMA "）System, wideband code division multiple access（Wideband Code Division Multiple Access, referred to as " WCDMA "）System, General Packet Radio Service（General Packet Radio Service, referred to as " GPRS "）, Long Term Evolution（Long Term Evolution, referred to as " LTE "）System, LTE Frequency division duplex（Frequency Division Duplex, referred to as " FDD "）System, LTE time division duplexs（Time Division Duplex, referred to as " TDD "）, Universal Mobile Communication 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..

It should also be understood that in embodiments of the present invention, user equipment（User Equipment, referred to as " UE "）It can be referred to as Terminal（Terminal）, mobile station（Mobile Station, referred to as " MS "）, mobile terminal（Mobile Terminal）Deng, The user's equipment can be through wireless access network（Radio Access Network, referred to as " RAN "）With one or more cores Net communicates, for example, user equipment can be mobile phone（Or it is " honeycomb " phone）, have mobile terminal computer Deng, for example, user equipment can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, They exchange voice and/or data with wireless access network.

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

Fig. 1 shows the schematic flow of the method 100 of reporting channel quality instruction CQI according to embodiments of the present invention Figure, this method 100 can be performed by user equipment (UE), as shown in Figure 1, this method 100 includes：

S110, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period, determine to Base station reports CQI, the power request adjustment amount in the first time period for user equipment (UE) in the first time period to the base Stand the sum of adjustment amount of transmission power of request；

S120, CQI is reported to the base station.

Therefore, the method for reporting CQI according to embodiments of the present invention, by asking base station pair according to the UE in a period of time The accumulation adjustment result of transmission power and the signal-to-noise ratio variable quantity of pilot channel, it is determined whether report CQI to the base station, can make Obtain UE and CQI is dynamically reported according to the virtual condition of pilot channel, both can be to avoid the band by setting less CQI report cycles The redundancy overhead come, and base station can be enabled to keep accurate CQI to predict, so that while system resource is saved, The accuracy that CQI is predicted in base station is improved, improves the performance and user experience of system.

In embodiments of the present invention, the UE can determine the signal-to-noise ratio SIR variable quantities of pilot channel in first time period with Power request adjustment amount, and according to the signal-to-noise ratio SIR variable quantities and power request adjustment amount of the pilot channel, it is determined whether Xiang Ji Station reports the CQI at current time.Wherein, which can be CPICH Common Pilot Channel（Common Pilot Channel, letter Referred to as " CPICH "）, can also be other pilot channels.Power request adjustment amount in the first time period for the UE this Accumulation adjustment amount of the base station to transmission power is asked in one period.Specifically, which can be by sending TPC to the base station Ask the base station to adjust transmission power, the power request adjustment amount of the first time period for the UE in the first time period to this The sum of corresponding power adjustments of TPC that base station is sent.For example, the TPC command collection that the UE is sent in first time period is combined into { 0,1,1,0,1,1 }, and it is 1dB that each amplitude for reducing or raising transmission power in the base station is arranged in the base station and UE sides, then " 0 " Represent to ask the base station that transmission power is reduced 1dB, " 1 " represents to ask the base station that transmission power is improved 1dB, in this way, at this The UE asks the sum of the accumulation adjustment amount of the base station to transmission power to ask the base station by transmission power liter in first time period The power request adjustment amount of high 2dB, the i.e. UE in the first time period is 2dB, but not limited to this of the embodiment of the present invention.

Alternatively, which can be when the absolute value of the power request adjustment amount be more than the absolute value of the SIR variable quantities, really Directional base station reports CQI；The UE can also be in the difference of the absolute value and the absolute value of the SIR variable quantities of the power request adjustment amount When value is more than predetermined threshold value, true directional base station reports CQI；The UE can also be in the power request adjustment amount and the SIR variable quantities And during more than zero, true directional base station reports CQI, but not limited to this of the embodiment of the present invention.

Alternatively, which can determine that the power request adjustment amount in the first time period is believed with pilot tone at each moment The signal-to-noise ratio variable quantity in road, and according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in the first time period Determine whether that base station reports CQI；Alternatively, determine that the signal-to-noise ratio of power request adjustment amount and pilot channel becomes in order to reduce UE The number of change amount, reduces the power overhead of the UE, which can also set the power request adjustment amount in definite first time period With the first report cycle of the signal-to-noise ratio variable quantity of pilot channel, and when first report cycle meets, according to this first when Between the signal-to-noise ratio variable quantity of power request adjustment amount in section and pilot channel, it is determined whether report CQI to base station, correspondingly, S110, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period, determines on the base station CQI is reported, including：

S110a, when the first report cycle is met, according to the power request adjustment amount in the first time period with leading The signal-to-noise ratio variable quantity of frequency channel, determines to report CQI to the base station.

Alternatively, since the UE is according to the power request adjustment amount in the first time period and the signal-to-noise ratio of the pilot channel Variable quantity, it is determined whether report CQI, therefore, which may not report CQI to the base station in a long time, and pass through After long period, the CQI of the base station prediction large error may occur with the CQI of UE reality, therefore, alternatively, the UE Second report cycle can also be set, which is more than first report cycle and more than the first time period Time interval.In this way, when first report cycle is met, which can be according to the power request in the first time period The signal-to-noise ratio variable quantity of adjustment amount and pilot channel determines whether to report CQI；And when second report cycle is met, should UE directly reports the CQI at the moment.Alternatively, further included as another embodiment, this method 100：

S130, when the second report cycle is met, CQI is reported to the base station, second report cycle be more than this One report cycle.

Alternatively, to the period current time at the time of which represents to report CQI by the last time, its In, it can be power request adjustment amount and pilot channel according in the first time period which, which reports at the time of CQI, At the time of signal-to-noise ratio variable quantity determines to report CQI, you can at the time of to be that the first report cycle is met；Alternatively, on this Once report at the time of CQI at the time of can also be that second report cycle is met；Alternatively, as another embodiment, To the minimum time current time at the time of the first time period can also represent to be met by second report cycle Section, i.e., the first time period represent in all moment that second report cycle is met apart from current time it is nearest at the time of To the period between current time, but not limited to this of the embodiment of the present invention.

Alternatively, CQI can also be determined according to the signal-to-noise ratio SIR variable quantities of pilot channel as another embodiment, the UE Variable quantity, and according to the CQI variable quantities and power request adjustment amount, it is determined whether report CQI to base station.Correspondingly, such as Fig. 2 institutes Show, S110, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period, determine to the base station CQI is reported, including：

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

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

The UE can be when the absolute value of the power request adjustment amount be more than the absolute value of the CQI variable quantities, true directing group Station reports CQI；Or the UE can also the absolute value and the absolute value of the CQI variable quantities of the power request adjustment amount difference it is big When predetermined threshold value, true directional base station reports CQI；Or the UE can also be in the power request adjustment amount and the CQI variable quantities During with more than zero, true directional base station reports CQI, but not limited to this of the embodiment of the present invention.

Alternatively, as another embodiment, S112, becomes according to the power request adjustment amount in first time period and the CQI Change amount, determines to report CQI to the base station, including：

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

Alternatively, as another embodiment, in order to allow base station more accurately to predict the CQI of the UE, this method 100 is also Including：

S140, the noise reference information of the UE is reported to the base station, so that the base station is determined according to the noise reference information The CQI penalty coefficients of the UE.

Wherein, which can be to determine the related ginseng of the noise of required pilot channel during CQI variable quantities Several values.Specifically, the first time period represent by a certain initial time in above-described embodiment to current time when Between section, which can draw below equation by inner-loop power control principle：

Δ(10×log(SIR))=-10×log(ΔP×No/No′) (1)

Wherein, SIR represents the channel SNRs of the initial time of the first time period, and Δ (10 × log (SIR)) represents 10 Variable quantities of × the log (SIR) in the first time period, No and No ' are illustrated respectively in the initial time and the letter at current time The noise power spectral density in road, Δ P represent actual change amount of the transmission power of base station in the first time period, Δ P=Ec/ Ec ', wherein, which is illustrated respectively in the transmission power of the base station at the initial time and current time.

In addition, according to the variation delta (CQI) of the CQI in first time period equal to CPICH Ec/Nt variable quantity and Formula (1), the variable quantity of the 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 after the removal orthogonalization interference of the initial time and the channel at current time Noise power spectral density, from formula (2) as can be seen that the noise reference information can be formula (2) in expression formula 10log The value of ((Nt/No)/(Nt '/No ')).It is to be understood that the embodiment of the present invention can use different derivation method and method for expressing, Therefore, which can be the relevant other information of noise or the numerical value of other expression formulas, and the embodiment of the present invention is not It is limited to this.

Above in conjunction with Fig. 1 and Fig. 2, the side for reporting CQI according to embodiments of the present invention is described in detail from the angle of UE Method, below in conjunction with Fig. 3 and Fig. 4, the method for reporting CQI according to embodiments of the present invention is described in detail from the angle of base station.

Fig. 3 shows the schematic stream of the method 200 of reporting channel quality instruction CQI according to another embodiment of the present invention Cheng Tu, this method can be performed by base station, as shown in figure 3, this method 200 includes：

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

S220, when being not detected by the CQI that the UE is reported, the CQI that is reported at first moment according to the UE and this first Power request adjustment amount in period, the CQI at determine UE moment in this prior.

In embodiments of the present invention, since UE is according to the power request adjustment amount and the letter of pilot channel in first time period Make an uproar and determine whether that base station reports CQI than variable quantity, therefore, which does not know that the UE can report CQI at moment at which, and Need to detect whether the UE has reported CQI.If the base station detects the CQI that the UE is reported, the base station is according to this CQI pairs The UE is scheduled；If the base station is not detected by the CQI that the UE is reported, the base station according to the CQI reported before the UE and Power request adjustment amounts of the UE in the first time period, predicts CQIs of the UE at current time, and according to the prediction CQI is scheduled the UE.

Alternatively, which can detect whether UE has reported CQI at each moment, which can also be with UE sides It is default to determine to report the first of CQI according to the power request adjustment amount in first time period and the signal-to-noise ratio variable quantity of pilot channel Report cycle, and when first report cycle is met, which detects whether the UE has reported CQI.Alternatively, S210, detection user equipment (UE) is according on the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period The CQI of report, including：

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

Alternatively, which can also preset the second report cycle with the UE sides, be expired in second report cycle When sufficient, which reports CQI, and the base station can directly receive what the UE was reported when second report cycle is met CQI is without being detected, and alternatively, as another embodiment, this method 200 further includes：

S230, when the second report cycle is met, receives the CQI that the UE is reported, which is more than should First report cycle.

Alternatively, determine whether to report the initial time of the first time period of CQI corresponding with UE, which can basis The power request adjustment amount in CQI and the first time period that the first reception that second report cycle is met arrives, Predict the CQI at current time；Alternatively, the UE can also be received according to the last time and is reported as another embodiment, the base station CQI and the first time period in power request adjustment amount, predict the CQI at current time, but the embodiment of the present invention is not limited to This.

Alternatively, at the time of which represents that second report cycle is met.

Alternatively, as another embodiment, at the time of which represents that the last time receives the CQI that the UE is reported.

Alternatively, as another embodiment, as shown in figure 4, this method 200 further includes：

S240, receives the noise reference information of UE transmissions；

Correspondingly, S220, according to power request tune of the UE in the CQI and the first time period that first moment reports Whole amount, the CQI at determine UE moment in this prior, including：

S221, according to power request adjustment amounts of the UE in CQI that first moment reports, the first time period and should Noise reference information, the CQI at determine UE moment in this prior.

It is to be understood that the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, the execution of each process is suitable Sequence should determine that the implementation process without tackling the embodiment of the present invention forms any restriction with its function and internal logic.

Above in conjunction with Fig. 1 to Fig. 4, the method for reporting CQI according to embodiments of the present invention is described in detail, below will knot Fig. 5 to Figure 10 is closed, describes base station according to embodiments of the present invention and user equipment.

Fig. 5 shows the schematic block diagram of user equipment (UE) 300 according to embodiments of the present invention, which includes：

Determining module 310, for being become according to the signal-to-noise ratio of the power request adjustment amount in first time period and pilot channel Change amount, determines to report CQI to the base station, the power request adjustment amount in the first time period for user equipment (UE) this first when Between the introversive base station requests of section the sum of the adjustment amount of transmission power；

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

Therefore, user equipment according to embodiments of the present invention, by asking base station to transmitting according to the UE in a period of time The accumulation adjustment result of power and the signal-to-noise ratio variable quantity of pilot channel, it is determined whether report CQI to the base station, enable to UE CQI is dynamically reported according to the virtual condition of pilot channel, can both be brought to avoid by setting less CQI report cycles Redundancy overhead, and base station can be enabled to keep accurate CQI to predict, so that while system resource is saved, improve The accuracy that CQI is predicted in base station, improves the performance and user experience of system.

Alternatively, which is specifically used for when the first report cycle is met, according to the first time period Interior power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel, determine to report CQI to the base station.

Alternatively, as another embodiment, which is additionally operable to when the second report cycle is met, to The base station reports CQI, which is more than first report cycle.

Alternatively, to current time at the time of which represents to be met by second report cycle Minimum time section.

Alternatively, as another embodiment, to current time at the time of which represents to report CQI by the last time Between period.

Alternatively, as another embodiment, as shown in fig. 6, the determining module 310 includes：

First determination unit 311, for the signal-to-noise ratio variable quantity according to pilot channel in the first time period, determine this CQI variable quantities in one period；

Second determination unit 312, for according to the power request adjustment amount in the first time period and the first definite list The definite CQI variable quantities of member 311, determine to report CQI to the base station.

Alternatively, it is specifically used for as another embodiment, second determination unit 312 when the power in the first time period When the difference for the CQI variable quantities that request adjustment amount is determined with first determination unit 311 is higher than the first thresholding, determine to the base Station reports CQI.

Alternatively, which is additionally operable to report the noise reference information of the UE to the base station, so as to the base station root The CQI penalty coefficients of the UE are determined according to the noise reference information.

User equipment 300 according to embodiments of the present invention may correspond to the method for reporting CQI according to embodiments of the present invention In user equipment, and above and other operation and/or function of the modules in user equipment 300 is respectively in order to realize The corresponding flow of each method in Fig. 1 and Fig. 2, for sake of simplicity, details are not described herein.

Fig. 7 shows the schematic block diagram of base station 400 according to embodiments of the present invention, which includes：

Detection module 410, for detecting user equipment (UE) according to the power request adjustment amount and pilot tone in first time period The CQI that the signal-to-noise ratio variable quantity of channel reports, the first time period represent the period by the first moment to current time, this Power request adjustment amount in one period for the UE in transmission power from the first time period to base station requests adjustment amount The sum of；

Determining module 420, for when the detection module 410 is not detected by the CQI that the UE is reported, according to the UE this The power request adjustment amount in the CQI and the first time period of report is engraved for the moment, the CQI at determine UE moment in this prior.

Therefore, base station according to embodiments of the present invention, by asking base station to transmission power according to the UE in a period of time Accumulation adjustment result and pilot channel signal-to-noise ratio variable quantity, it is determined whether report CQI to the base station, enable to UE according to The virtual condition of pilot channel dynamically reports CQI, both can be to avoid by the redundancy for setting less CQI report cycles and bringing Expense, and base station can be enabled to keep accurate CQI to predict, so that while system resource is saved, improve base station The accuracy predicted CQI, improves the performance and user experience of system.

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

Alternatively, as another embodiment, as shown in figure 8, the base station 400 further includes：

First receiving module 430, for when the second report cycle is met, receiving the CQI that the UE is reported, this second Report cycle is more than the report cycle.

Alternatively, at the time of which represents that second report cycle is met.

Alternatively, further included as another embodiment, the base station 400：

Second receiving module 440, for receiving the noise reference information of UE transmissions；

The determining module 420 is specifically used for the work(in CQI that first moment reports, the first time period according to the UE Rate asks the noise reference information that adjustment amount and second receiving module 440 receive, and determines the UE moment in this prior CQI。

Base station 400 according to embodiments of the present invention may correspond in the method for reporting CQI according to embodiments of the present invention Base station, and above and other operation and/or function of the modules in base station 400 is respectively in order to realize in Fig. 3 and Fig. 4 The corresponding flow of each method, for sake of simplicity, details are not described herein.

Fig. 9 shows the schematic block diagram of user equipment (UE) 500 according to another embodiment of the present invention, which includes Processor 510, memory 520, bus system 530 and transmitter 540.Wherein, processor 510, memory 520 and transmitter 540 are connected by bus system 530, the memory 520 for storing instruction, the processor 510 by the bus system 530, The instruction stored in the memory 520 is called, for according to the power request adjustment amount and pilot channel in first time period Signal-to-noise ratio variable quantity, determine to report CQI to the base station, the power request adjustment amount in the first time period is user equipment (UE) To the sum of adjustment amount of transmission power of the base station requests in the first time period；The transmitter 540 is used for the base station Report CQI.

It is to be understood that in embodiments of the present invention, which can be central processing unit（Central Processing Unit, referred to as " CPU "）, which can also be other general processors, digital signal processor （DSP）, application-specific integrated circuit（ASIC）, ready-made programmable gate array（FPGA）Or other programmable logic device, discrete gate Or transistor logic, discrete hardware components etc..General processor can be that microprocessor or the processor can also It is any conventional processor etc..

The memory 520 can include read-only storage and random access memory, and to processor 510 provide instruction and Data.The a part of of memory 520 can also include nonvolatile RAM.For example, memory 520 can also be deposited Store up the information of device type.

The bus system 530 can also include power bus, controlling bus and status signal in addition to including data/address bus Bus etc..But for the sake of clear explanation, various buses are all designated as bus system 530 in figure.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 510 Or the instruction of software form is completed.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly at hardware Reason device performs completion, or performs completion with the hardware in processor and software module combination.Software module can be located at random Memory, flash memory, read-only storage, the ability such as programmable read only memory or electrically erasable programmable memory, register In the storage medium of domain maturation.The storage medium is located at memory 520, and processor 510 reads the information in memory 520, knot Close the step of its hardware completes the above method.To avoid repeating, it is not detailed herein.

Alternatively, which is specifically used for when the first report cycle is met, according in the first time period Power request adjustment amount and pilot channel signal-to-noise ratio variable quantity, determine to report CQI to the base station.

Alternatively, as another embodiment, which is additionally operable to when the second report cycle is met, to this Base station reports CQI, which is more than first report cycle.

Alternatively, it is additionally operable to the letter according to pilot channel in the first time period as another embodiment, the processor 510 Make an uproar than variable quantity, determine the CQI variable quantities in the first time period, and adjust according to the power request in the first time period The CQI variable quantities that amount is determined with the processor 510, determine to report CQI to the base station.

Alternatively, it is specifically used for as another embodiment, the processor 510 when the power request tune in the first time period When whole amount and the difference of the CQI variable quantities are higher than the first thresholding, determine to report CQI to the base station.

Alternatively, as another embodiment, which is additionally operable to report the reference of the UE to disturb ratio to the base station, So as to the base station according to this with reference to CQI penalty coefficient of the interference than determining the UE.

User equipment 500 according to embodiments of the present invention may correspond to the method for reporting CQI according to embodiments of the present invention In user equipment, and above and other operation and/or function of the modules in user equipment 500 is respectively in order to realize The corresponding flow of each method in Fig. 1 and Fig. 2, for sake of simplicity, details are not described herein.

Figure 10 shows the schematic block diagram of base station 600 according to another embodiment of the present invention, which includes：Place Manage device 610, memory 620 and bus system 630.Wherein, processor 610 is connected with memory 620 by bus system 630, For storing instruction, which calls what is stored in the memory 620 to the memory 620 by the bus system 630 The instruction, for：User equipment (UE) is detected according to the power request adjustment amount and the noise of pilot channel in first time period The CQI reported than variable quantity, which represents the period by the first moment to current time, in the first time period Power request adjustment amount for the UE in the first time period to the sum of adjustment amount of transmission power of base station requests, and work as , please according to power of the UE in the CQI and the first time period that first moment reports when being not detected by the CQI that the UE is reported Adjustment amount is sought, the CQI at determine UE moment in this prior.

The memory 620 can include read-only storage and random access memory, and to processor 610 provide instruction and Data.The a part of of memory 620 can also include nonvolatile RAM.For example, memory 620 can also be deposited Store up the information of device type.

The bus system 630 can also include power bus, controlling bus and status signal in addition to including data/address bus Bus etc..But for the sake of clear explanation, various buses are all designated as bus system 630 in figure.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 610 Or the instruction of software form is completed.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly at hardware Reason device performs completion, or performs completion with the hardware in processor and software module combination.Software module can be located at random Memory, flash memory, read-only storage, the ability such as programmable read only memory or electrically erasable programmable memory, register In the storage medium of domain maturation.The storage medium is located at memory 620, and processor 610 reads the information in memory 620, knot Close the step of its hardware completes the above method.To avoid repeating, it is not detailed herein.

Alternatively, which is specifically used for when the first report cycle is met, when detecting the UE according to first Between the CQI that reports of the signal-to-noise ratio variable quantity of power request adjustment amount in section and pilot channel.

Alternatively, receiver 640 is further included as another embodiment, the base station 600, for being obtained in the second report cycle When meeting, the CQI that the UE is reported is received, which is more than first report cycle.

Alternatively, at the time of which represents that second report cycle is met.

Alternatively, receiver 640 is further included as another embodiment, the base station 600, for receiving the noise of UE transmissions Reference information；

Correspondingly, which is specifically used for CQI, the first time period reported according to the UE at first moment The noise reference information that interior power request adjustment amount and the receiver 640 receive, determines the UE moment in this prior CQI。

Base station 600 according to embodiments of the present invention may correspond in the method for reporting CQI according to embodiments of the present invention Base station, and above and other operation and/or function of the modules in base station 600 is respectively in order to realize in Fig. 3 and Fig. 4 The corresponding flow of each method, for sake of simplicity, details are not described herein.

It is to be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation for describing affiliated partner, Expression may have three kinds of relations.For example, A and/or B, can represent：Individualism A, while there are A and B, individualism B this Three kinds of situations.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.

Those of ordinary skill in the art may realize that with reference to each method step described in the embodiments described herein Rapid and unit, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and soft The interchangeability of part, the step of generally describing each embodiment according to function in the above description and composition.These Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical solution.Ability Domain those of ordinary skill can realize described function to each specific application using distinct methods, but this reality Now it is not considered that beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is The specific work process of system, device and unit, may be referred to the corresponding process in preceding method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Division, is only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or beg for The mutual coupling, direct-coupling or communication connection of opinion can be the INDIRECT COUPLING by some interfaces, device or unit Or communication connection or electricity, the connection of mechanical or other forms.

The unit illustrated as separating component may or may not be physically separate, be shown as unit The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also It is that unit is individually physically present or two or more units integrate in a unit.It is above-mentioned integrated Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.

If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part to contribute in other words to the prior art, or all or part of the technical solution can be in the form of software product Embody, which is stored in a storage medium, including some instructions are used so that a computer Equipment（Can be personal computer, server, or network equipment etc.）Perform the complete of each embodiment the method for the present invention Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（Read-Only Memory, letter Referred to as " ROM "）, random access memory（Random Access Memory, referred to as " RAM "）, magnetic disc or CD etc. it is each Kind can be with the medium of store program codes.

The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced Change, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection domain subject to.

Claims

A kind of 1. method of reporting channel quality instruction CQI, it is characterised in that including：

Reported according to the power request adjustment amount in first time period and the signal-to-noise ratio variable quantity of pilot channel, true directional base station CQI, power request adjustment amount in the first time period for user equipment (UE) in the first time period to the base station The sum of adjustment amount of transmission power of request；

CQI is reported to the base station；

The signal-to-noise ratio variable quantity of the power request adjustment amount and pilot channel according in first time period, determines to the base Station reports CQI, including：

According to the signal-to-noise ratio variable quantity of pilot channel in the first time period, the CQI changes in the first time period are determined Amount；

According to the power request adjustment amount in the first time period and CQI variable quantities, determine to report CQI to the base station；

The power request adjustment amount according in the first time period and the CQI variable quantities, determine on the base station CQI is reported, including：

When the difference of the power request adjustment amount in the first time period and the CQI variable quantities is higher than the first thresholding, really Orient the base station and report CQI.
2. the according to the method described in claim 1, it is characterized in that, power request adjustment amount according in first time period With the signal-to-noise ratio variable quantity of pilot channel, determine to report CQI to the base station, including：

When the first report cycle is met, according to the power request adjustment amount in the first time period and pilot channel Signal-to-noise ratio variable quantity, determines to report CQI to the base station.
3. according to the method described in claim 2, it is characterized in that, the method further includes：

When the second report cycle is met, CQI is reported to the base station, second report cycle is more than on described first Report the cycle.
4. according to the method described in claim 3, it is characterized in that, the first time period is represented by second report cycle To the minimum time section between current time at the time of being met.
5. according to the method described in claim 1, it is characterized in that, the first time period represents to report CQI's by the last time Moment to the period between current time.
6. method according to any one of claim 1 to 5, it is characterised in that the method further includes：

The noise reference information of the UE is reported to the base station, so that the base station determines institute according to the noise reference information State the CQI penalty coefficients of UE.
A kind of 7. method of reporting channel quality instruction CQI, it is characterised in that including：

User equipment (UE) is detected according on the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period The CQI of report, the first time period were represented by the first moment to the period current time, in the first time period Power request adjustment amount for the UE in the first time period to the sum of adjustment amount of transmission power of base station requests；

When being not detected by the CQI that the UE is reported, according to the UE CQI reported at first moment and it is described first when Between power request adjustment amount in section, determine CQIs of the UE at the current time；

When detecting the CQI that the UE is reported, determine that the difference of the power request adjustment amount and the CQI variable quantities is higher than First thresholding, the CQI variable quantities are that the UE is determined according to the signal-to-noise ratio variable quantity in the first time period.
8. the method according to the description of claim 7 is characterized in that the detection user equipment (UE) is according in first time period The CQI that the signal-to-noise ratio variable quantity of power request adjustment amount and pilot channel reports, including：

When the first report cycle is met, the UE is detected according to the power request adjustment amount and pilot tone in first time period The CQI that the signal-to-noise ratio variable quantity of channel reports.
9. according to the method described in claim 8, it is characterized in that, the method further includes：

When the second report cycle is met, the CQI that the UE is reported is received, second report cycle is more than described first Report cycle.
10. according to the method described in claim 9, it is characterized in that, first moment expression, second report cycle obtains To at the time of satisfaction.
11. the method according to the description of claim 7 is characterized in that first moment represents that the last time receives the UE At the time of the CQI reported.
12. the method according to any one of claim 7 to 11, it is characterised in that the method further includes：

Receive the noise reference information that the UE is sent；

The power request adjustment amount according to the UE in the CQI and the first time period that first moment reports, Determine CQIs of the UE at the current time, including：

According to power request adjustment amounts of the UE in CQI that first moment reports, the first time period and described Noise reference information, determines CQIs of the UE at the current time.
A kind of 13. user equipment (UE), it is characterised in that including：

Determining module, for according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period, really Directional base station reports CQI, and the power request adjustment amount in the first time period is user equipment (UE) in the first time period The sum of adjustment amount of transmission power of the introversive base station requests；

Reporting module, for reporting CQI to the base station；

The determining module includes：

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

Second determination unit, for true according to the power request adjustment amount in the first time period and first determination unit The fixed CQI variable quantities, determine to report CQI to the base station；

Second determination unit is specifically used for when the power request adjustment amount in the first time period and described first determine When the difference for the CQI variable quantities that unit determines is higher than the first thresholding, determine to report CQI to the base station.
14. UE according to claim 13, it is characterised in that the determining module is specifically used for when the first report cycle obtains To when meeting, according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in the first time period, determine to The base station reports CQI.
15. UE according to claim 14, it is characterised in that the reporting module is additionally operable to when the second report cycle obtains When meeting, CQI is reported to the base station, second report cycle is more than first report cycle.
16. UE according to claim 15, it is characterised in that the first time period is represented by second report cycle To the minimum time section between current time at the time of being met.
17. UE according to claim 13, it is characterised in that the first time period represents to report CQI's by the last time Moment to the period between current time.
18. the UE according to any one of claim 13 to 17, it is characterised in that the reporting module is additionally operable to described Base station reports the noise reference information of the UE, so that the base station determines according to the noise reference information CQI of the UE Penalty coefficient.
A kind of 19. base station, it is characterised in that including：

Detection module, for detecting user equipment (UE) according to the power request adjustment amount and the letter of pilot channel in first time period Make an uproar the CQI reported than variable quantity, and the first time period represents the period by the first moment to current time, when described first Between power request adjustment amount in section for the UE in transmission power from the first time period to base station requests adjustment amount The sum of；

Determining module, for when the detection module is not detected by the CQI that the UE is reported, according to the UE described first The power request adjustment amount in CQI and the first time period that moment reports, determines the UE at the current time CQI；

The determining module is additionally operable to when detecting the CQI that the UE is reported, determine the power request adjustment amount with it is described The difference of CQI variable quantities is higher than the first thresholding, and the CQI variable quantities are the UE according to the signal-to-noise ratio in the first time period What variable quantity determined.
20. base station according to claim 19, it is characterised in that the detection module is specifically used for when the first report cycle When being met, the UE is detected according to the power request adjustment amount and the signal-to-noise ratio variable quantity of pilot channel in first time period The CQI reported.
21. base station according to claim 20, it is characterised in that the base station further includes：

First receiving module, for when the second report cycle is met, receiving the CQI that the UE is reported, on described second The report cycle is more than first report cycle.
22. base station according to claim 21, it is characterised in that first moment represents that second report cycle obtains To at the time of satisfaction.
23. base station according to claim 19, it is characterised in that first moment represents that the last time receives the UE At the time of the CQI reported.
24. the base station according to any one of claim 19 to 23, it is characterised in that the base station further includes：

Second receiving module, the noise reference information sent for receiving the UE；

The determining module is specifically used for according to the UE in CQI that first moment reports, the first time period The noise reference information that power request adjustment amount and second receiving module receive, determines the UE when described current The CQI at quarter.