CN107306243A

CN107306243A - Obtain the device and method of Reference Signal Received Quality

Info

Publication number: CN107306243A
Application number: CN201610255309.4A
Authority: CN
Inventors: 李卫国; 李俊强; 徐晓亮
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2016-04-22
Filing date: 2016-04-22
Publication date: 2017-10-31
Anticipated expiration: 2036-04-22
Also published as: CN107306243B

Abstract

The present invention provides a kind of device and method for obtaining Reference Signal Received Quality (RSRQ), wherein, obtaining RSRQ device includes：Radio-frequency antenna, the reception signal for obtaining cell, wherein, receiving signal includes at least one reference signal；Signal processor, signal is received for handling, to obtain multiple candidate signals, wherein, multiple candidate signals have different bandwidth；At least one data selector, is connected with signal processor, and being each respectively used to from multiple candidate signals at least one data selector chooses a measured signal；And measuring appliance, for based on measured signal, obtaining Reference Signal Received Quality.The device and method that the present invention is provided, for different situations, the candidate signal of different bandwidth can be selected, in suitable environment, less bandwidth measurement RSRQ can be selected and ensure preferable measurement performance, therefore compared with existing WB RSRQ measuring methods, hardware spending is small, low in energy consumption and be provided with adjustable flexibility.

Description

Obtain the device and method of Reference Signal Received Quality

Technical field

The present invention relates to communication technical field, more particularly to a kind of device for obtaining Reference Signal Received Quality And method.

Background technology

Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ) is mainly used In the quality of reception for weighing cell reference signals.The Reference Signal Received Quality connects depending on reference signal Receive power (Reference Signal Receiving Power, RSRP) and received signal strength indicator (Received Signal Strength Indication, RSSI).

Long Term Evolution (Long Term Evolution, LTE or Long Term Evolution Advanced, LTE-A) in system, when the bandwidth of adjacent area is different from serving cell bandwidth, or serving cell bandwidth internal memory In the interference of other systems, if in middle 6 resource blocks (Resource Block, RB), i.e. centre 1.4MHz bandwidth on, carry out RSRQ measurement RSSI can be caused relatively low, RSRQ is higher because in Between 6RB on the Reference Signal Received Quality that measures can not represent the signal of cell in some cases and receive Quality, such as, what the 6RB in the middle of reception signal was subject to disturbs bandwidth that is smaller and receiving signal two ends The interference being subject to is than larger.Therefore, added in 3GPP LTE_R11 using bigger Measurement bandwidth, Such as more than 50RB, i.e. the broadband reference signal quality of reception (Wide-Band RSRQ, WB-RSRQ) Measurement request.WB-RSRQ measuring methods of the prior art propose two kinds of possible schemes, and one is Using big bandwidth, such as 50RB, to complete WB-RSRQ measurements, two be the Measurement bandwidth used still For 6RB, but time division multiplexing (Time Division Multiplexing, TDM) is used, pass through shift frequency Different frequency bands are measured, the RSRQ for then averaging to complete whole bandwidth is measured.

The content of the invention

Present invention solves the technical problem that being to provide a kind of device for obtaining Reference Signal Received Quality and side Method, to reduce hardware spending, reduces power consumption and is provided with adjustable flexibility.

To solve the above problems, the embodiment of the present invention provides a kind of device for obtaining Reference Signal Received Quality, Described device includes：Radio-frequency antenna, the reception signal for obtaining cell, wherein, the reception signal Including at least one reference signal；Signal processor, it is multiple to obtain for handling the reception signal Candidate signal, wherein, the multiple candidate signal has different bandwidth；At least one data selector, It is connected with the signal processor, being each respectively used to from described at least one described data selector A measured signal is chosen in multiple candidate signals；And measuring appliance, for based on the measured signal, Obtain Reference Signal Received Quality.Alternatively, described device also includes：Analog-digital converter, respectively with institute Radio-frequency antenna and signal processor connection are stated, for the reception signal from analog signal to be converted to Data signal.

Alternatively, the signal processor includes adopting under at least one low pass filter or at least one 2 times Each in sample device, at least one described 2 times of down-sampler is connected with least one described low pass filter, Wherein, at least one described low pass filter is used to carry out low-pass filtering treatment, described at least one to signal Individual 2 times of down-samplers are used to carry out signal 2 times of down-samplings processing, so as to obtain with different bandwidth The multiple candidate signal.

Alternatively, at least one described low pass filter includes the first low pass filter, the second LPF Device, the 3rd low pass filter, the 4th low pass filter, at least one described 2 times of down-sampler include the Adopted under one 2 times of down-samplers, the 2nd 2 times of down-sampler, the 3rd 2 times of down-sampler and the 4th 2 times Sample device, wherein, the one 2 times of down-sampler is connected with first low pass filter, and described second Low pass filter is connected with the one 2 times of down-sampler, the 2nd 2 times of down-sampler and described the Two low pass filters are connected, and the 3rd low pass filter is connected with the 2nd 2 times of down-sampler, institute State the 3rd 2 times of down-sampler to be connected with the 3rd low pass filter, the 4th low pass filter and institute State the 3rd 2 times of down-sampler connection, and the 4th 2 times of down-sampler and the 4th LPF Device is connected.

Alternatively, the measured signal includes echo signal, and at least one described data selector includes the One data selector, is connected with the measuring appliance, for choosing the mesh from the multiple candidate signal Mark signal.The measuring appliance obtains the Reference Signal Received Power and the echo signal of the echo signal Received signal strength indicator, so as to obtain the Reference Signal Received Quality.

Alternatively, the measured signal includes indication signal, and at least one described data selector includes the Two data selectors, for choosing the indication signal in the multiple candidate signal.Described device is also Including：Time-domain received signal strength indication calculates device, respectively with second data selector and the survey Measuring device is connected, for based on the indication signal, the reception letter of the indication signal to be calculated in the time domain Number intensity is indicated.The measuring appliance, is also connected with the signal processor, obtains the multiple candidate's letter The Reference Signal Received Power of a candidate signal in number；The received signal strength of the indication signal is referred to Show and be modified；And, according to the Reference Signal Received Power of one candidate signal and the amendment Indication signal received signal strength indicator, obtain the Reference Signal Received Quality.

Alternatively, the measured signal includes echo signal, and at least one described data selector includes the One data selector, is connected with the measuring appliance, for choosing the mesh from the multiple candidate signal Mark signal.The measured signal also includes indication signal, and at least one described data selector also includes the Two data selectors, for choosing the indication signal in the multiple candidate signal.Described device is also Including：Time-domain received signal strength indication calculates device, respectively with second data selector and the survey Measuring device is connected, for based on the indication signal, the reception letter of the indication signal to be calculated in the time domain Number intensity is indicated.The measuring appliance obtains the Reference Signal Received Power of the echo signal；Refer to described Show that the received signal strength indicator of signal is modified；And, according to the reference signal of the echo signal The received signal strength indicator of receiving power and the indication signal of the amendment, obtains the reference signal and connects Receive quality.

The embodiment of the present invention also provides a kind of method for obtaining Reference Signal Received Quality, and methods described includes： The reception signal of cell is obtained, wherein, the reception signal includes at least one reference signal；Processing institute Reception signal is stated, to obtain multiple candidate signals, wherein, the multiple candidate signal has different bands It is wide；At least one measured signal is chosen from the multiple candidate signal；And based on it is described at least one Measured signal, obtains Reference Signal Received Quality.Alternatively, handling the reception signal is included to described Receive signal and carry out LPF and 2 times of down-sampling processing, so as to obtain described many with different bandwidth Individual candidate signal.Alternatively, the different bandwidth includes 1.4MHz, 3MHz, 5MHz, 10MHz Or 20MHz.

Alternatively, methods described also includes：According to communication standard, the reference signal that analysis is obtained connects Receive quality；If the Reference Signal Received Quality is less than a corresponding threshold value in the communication standard, The candidate signal more roomy than at least one measured signal band is obtained from the multiple candidate signal with more The new measured signal；And, based on the measured signal of the renewal, obtain the reference signal updated and connect Receive quality.

Alternatively, methods described also includes：According to communication standard, the reference signal that analysis is obtained connects Receive quality；If the Reference Signal Received Quality is more than a corresponding threshold value in the communication standard, The candidate signal smaller than at least one measured signal bandwidth is obtained from the multiple candidate signal with more The new measured signal；And, based on the measured signal of the renewal, obtain the reference signal updated and connect Receive quality.

Alternatively, the measured signal includes echo signal, is chosen at least from the multiple candidate signal One measured signal includes choosing the echo signal from the multiple candidate signal.Obtain reference signal The quality of reception includes obtaining the Reference Signal Received Power of the echo signal and the reception of the echo signal Signal intensity is indicated, so as to obtain the Reference Signal Received Quality.Alternatively, the echo signal Bandwidth includes 1.4MHz, 3MHz or 5MHz.

Alternatively, the measured signal includes indication signal, is chosen at least from the multiple candidate signal One measured signal includes choosing the indication signal from the multiple candidate signal.Methods described is also wrapped Include：Based on the indication signal, the received signal strength indicator of the indication signal is calculated in the time domain. Obtaining Reference Signal Received Quality includes：Obtain the reference signal of a candidate signal in the multiple candidate Receiving power；The received signal strength indicator of the indication signal is modified；And, according to described The Reference Signal Received Power of one candidate signal and the received signal strength of the indication signal of the amendment refer to Show, obtain the Reference Signal Received Quality.

Alternatively, the received signal strength indicator of the indication signal is modified including according to amendment Coefficient, is modified to the received signal strength indicator of the indication signal, wherein, the correction factor It is relevant with the size of Fast Fourier Transform (FFT) or the number of null subcarrier.

Alternatively, the received signal strength indicator of the indication signal is calculated in the time domain to be included：According to Communication standard, analyzes the received signal strength indicator of the indication signal obtained；If described indicate letter Number received signal strength indicator be more than the communication standard in a corresponding threshold value, from it is the multiple wait Select and obtain the candidate signal smaller than the indication signal bandwidth in signal to update the indication signal；And, Based on the indication signal of the renewal, the received signal strength indicator of renewal is calculated in the time domain.

Alternatively, the received signal strength indicator of the indication signal is calculated in the time domain to be included：According to Communication standard, analyzes the received signal strength indicator of the indication signal obtained；If described indicate letter Number received signal strength indicator be less than the communication standard in a corresponding threshold value, from it is the multiple wait Select and obtain the candidate signal more roomy than the indication signal band in signal to update the indication signal；And, Based on the indication signal of the renewal, the received signal strength indicator of renewal is calculated in the time domain.

Alternatively, the measured signal includes echo signal, is chosen at least from the multiple candidate signal One measured signal includes choosing the echo signal from the multiple candidate signal.The measured signal Also include indication signal, at least one measured signal is chosen from the multiple candidate signal also to be included from institute State and the indication signal is chosen in multiple candidate signals.Methods described also includes：Based on the indication signal, The received signal strength indicator of the indication signal is calculated in the time domain.Obtain Reference Signal Received Quality Including：Obtain the Reference Signal Received Power of the echo signal；To the reception signal of the indication signal Intensity indicates to be modified；And, according to the Reference Signal Received Power of the echo signal and described repair The received signal strength indicator of positive indication signal, obtains the Reference Signal Received Quality.Alternatively, The bandwidth of the echo signal includes 1.4MHz, 3MHz or 5MHz.

Alternatively, obtaining the Reference Signal Received Power of the echo signal includes：According to communication standard, Analyze the Reference Signal Received Power of the echo signal obtained；If the reference letter of the echo signal Number receiving power is more than a corresponding threshold value in the communication standard, is obtained from the multiple candidate signal The candidate signal smaller than the echo signal bandwidth is taken to update the echo signal；And, based on described The echo signal of renewal, obtains the Reference Signal Received Power updated.

Alternatively, obtaining the Reference Signal Received Power of the echo signal includes：According to communication standard, Analyze the Reference Signal Received Power of the echo signal obtained；If the reference letter of the echo signal Number receiving power is less than one threshold value of correspondence in the communication standard, is obtained from the multiple candidate signal The candidate signal more roomy than the echo signal band is taken to update the echo signal；And, based on described The echo signal of renewal, obtains the Reference Signal Received Power updated.

Compared with prior art, the technical scheme of the embodiment of the present invention has advantages below：

The candidate signal of different bandwidth can be selected for different situations, so that in suitable environment, Less bandwidth (for example, less than 50RB) measurement can be selected to obtain RSRQ and ensure preferably measurement Performance, therefore compared with existing WB-RSRQ measuring methods, hardware spending is small, it is low in energy consumption and have Adjustable flexibility.

Further, it is very small in the hardware spending of time domain progress energy measurement, hardware can not increased Different bandwidth are neatly supported on the basis of cost, can also according to different bandwidth and strategy when Measurement obtains RSSI in domain.

Brief description of the drawings

Fig. 1 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 2 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 3 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 4 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 5 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 6 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 7 shows that the structure of the device of the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 8 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Fig. 9 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Figure 10 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Figure 11 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Figure 12 shows the structural representation of a reception signal of one embodiment of the invention；

Figure 13 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；

Figure 14 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to；And

Figure 15 shows that the flow of the method for the acquisition Reference Signal Received Quality of one embodiment of the invention is shown It is intended to.

Embodiment

It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings The specific embodiment of the present invention is described in detail.It should be noted that providing the purpose of these accompanying drawings Contribute to understand embodiments of the invention, and should not be construed as the improperly limitation to the present invention.

The embodiment of the present invention provides a kind of device for obtaining Reference Signal Received Quality, and described device is configured at In digital front-end (Digital Front End, DFE).With reference to Fig. 1, one embodiment of the present of invention is provided A kind of device 100 for obtaining Reference Signal Received Quality.Described device 100 passes through multiple candidates from acquisition An echo signal is chosen in signal and obtains the RSRP and RSSI of the echo signal so as to obtain to measure RSRQ.Described device 100 is included with lower component.

Radio-frequency antenna 120, the reception signal for obtaining cell, the reception signal is joined including at least one Examine signal.Wherein, the signal that the radio-frequency antenna 120 is received is analog signal.

Analog-digital converter 110, is connected with the radio-frequency antenna 120, for by the reception signal from analog Signal is converted to data signal.

Signal processor 140, is connected with the analog-digital converter 110, for handling the reception signal, To obtain multiple candidate signals, the multiple candidate signal has different bandwidth.Wherein, the signal Processor 140 is digital signal processor.Wherein, the different bandwidth include 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 140 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected.Wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple candidate signal of different bandwidth.

With continued reference to Fig. 1, illustrate, in the present embodiment, the signal processor 140 includes Under low pass filter 141, low pass filter 143, low pass filter 145,147,2 times of low pass filter 142,2 times of sampler, 144,2 times of down-sampler down-sampler 146 and 2 times of down-samplers 148, its In, 2 times of down-samplers 142 are connected with the low pass filter 141, the low pass filter 143 142 are connected with 2 times of down-samplers, 2 times of down-samplers 144 are connected with the low pass filter 143, the low pass filter 145 is connected with 2 times of down-samplers 144,2 times of down-samplers 146 are connected with the low pass filter 145, the low pass filter 147 and 2 times of down-samplers 146 connections, and 2 times of down-samplers 148 are connected with the low pass filter 147.

Data selector 160, is connected with the signal processor 140, for from the multiple candidate signal One echo signal of middle selection, band a width of 1.4MHz, 3MHz or 5MHz of the echo signal.

Measuring appliance 180, is connected with the data selector 160, the RSRP for obtaining the echo signal With the RSSI of the echo signal, so as to obtain RSRQ.

It should be noted that in suitable environment, described device 100 can be selected than 10MHz bandwidth (that is, 50RB) small bandwidth measurement obtains RSRQ and ensures preferable measurement performance, thus with it is existing WB-RSRQ measuring methods compare, hardware spending is small, low in energy consumption and be provided with adjustable flexibility.

With reference to Fig. 2, the embodiment of the present invention also provides a kind of device 200 for obtaining Reference Signal Received Quality. Described device 200 calculates RSSI and obtains time domain RSSI (that is, TD-RSSI) in the time domain, and is based on TD-RSSI obtains RSRQ.Described device 200 is included with lower component.

Radio-frequency antenna 220, the reception signal for obtaining cell, the reception signal is joined including at least one Examine signal.Wherein, the signal that the radio-frequency antenna 220 is received is analog signal.

Analog-digital converter 210, is connected with the radio-frequency antenna 220, for by the reception signal from analog Signal is converted to data signal.

Signal processor 240, is connected with the analog-digital converter 210, for handling the reception signal, To obtain multiple candidate signals, the multiple candidate signal has different bandwidth.Wherein, the signal Processor 240 is digital signal processor.Wherein, the different bandwidth include 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 240 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected.Wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple candidate signal of different bandwidth.

With continued reference to such as Fig. 2, in the present embodiment, the signal processor 240 includes low pass filter 241, low pass filter 243, low pass filter 245,247,2 times of down-samplers 242 of low pass filter, 2 times of down-samplers, 244,2 times of down-samplers 246 and 2 times of down-samplers 248, wherein, described 2 Times down-sampler 242 is connected with the low pass filter 241, the low pass filter 243 and described 2 Times down-sampler connection 242,2 times of down-samplers 244 are connected 243, institute with the low pass filter Low pass filter 245 is stated to be connected with 2 times of down-samplers 244,2 times of down-samplers 246 with The low pass filter 245 is connected, and the low pass filter 247 connects with 2 times of down-samplers 246 Connect, and 2 times of down-samplers 248 are connected with the low pass filter 247.

Data selector 230 (multiplexer), is connected with the signal processor 240, for from described An indication signal is chosen in multiple candidate signals.

Time-domain received signal strength indication calculates device 250 (that is, TD-RSSI calculators), with the data Selector 230 is connected, for based on the indication signal, the indication signal to be calculated in the time domain RSSI, that is, calculate the TD-RSSI of the indication signal.

Measuring appliance 280, is connected with the signal processor 240 and the TD-RSSI calculators 250, For the RSRP for the candidate signal for obtaining a width of 1.4MHz of band in the multiple candidate signal.It is described to survey Measuring device 280 is additionally operable to be modified the TD-RSSI of the indication signal according to correction factor, described to repair Positive coefficient is relevant with the size of Fast Fourier Transform (FFT) or the number of null subcarrier.The measuring appliance 280 is also Obtained for the RSRP of the candidate signal according to a width of 1.4MHz of the band and the TD-RSSI of the amendment Take RSRQ.

It should be noted that because the two ends for receiving signal bandwidth all have null subcarrier, and in the time domain, Null subcarrier can not be removed from signal is received, it is therefore desirable to TD-RSSI is modified to remove two End obtains null subcarrier for the TD-RSSI obtained in time domain influence.

It should be noted that it is very small in the hardware spending that time domain carries out energy measurement, and the present embodiment The described device 200 of offer can neatly support different bandwidth on the basis of hardware costs is not increased, It can also in the time domain be measured according to different bandwidth and strategy and obtain RSSI.

With reference to Fig. 3, the embodiment of the present invention also provides a kind of device 300 for obtaining Reference Signal Received Quality. Described device 300 is the combination of described device 100 and described device 200, including with lower component.

Radio-frequency antenna 320, the reception signal for obtaining cell, the reception signal is joined including at least one Examine signal.Wherein, the signal that the radio-frequency antenna 320 is received is analog signal.

Analog-digital converter 310, is connected with the radio-frequency antenna 320, for by the reception signal from analog Signal is converted to data signal.

Signal processor 340, is connected with the analog-digital converter 310, for handling the reception signal, To obtain multiple candidate signals, the multiple candidate signal has different bandwidth.At wherein described signal Reason device 340 is digital signal processor.Wherein, residing different bandwidth include 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 340 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected, wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple candidate signal of different bandwidth.

With continued reference to such as Fig. 3, in the present embodiment, the signal processor 340 includes low pass filter 341, low pass filter 343, low pass filter 345,347,2 times of down-samplers 342 of low pass filter, 2 times of down-samplers, 344,2 times of down-samplers 346 and 2 times of down-samplers 348, wherein, described 2 Times down-sampler 342 is connected with the low pass filter 341, the low pass filter 343 and described 2 Times down-sampler connection 342,2 times of down-samplers 344 are connected 343, institute with the low pass filter Low pass filter 345 is stated to be connected with 2 times of down-samplers 344,2 times of down-samplers 346 with The low pass filter 345 is connected, and the low pass filter 347 connects with 2 times of down-samplers 346 Connect, and 2 times of down-samplers 348 are connected with the low pass filter 347.

Data selector 360, is connected with the signal processor 340, for from the multiple candidate signal One echo signal of middle selection, band a width of 1.4MHz, 3MHz or 5MHz of the echo signal.

Data selector 330, is connected with the signal processor 340, for from the multiple candidate signal One indication signal of middle selection.

TD-RSSI calculators 350, are connected with the data selector 330, for indicating letter based on described Number, the RSSI of the indication signal is calculated in the time domain, that is, calculates the TD-RSSI of the indication signal.

Measuring appliance 380, is connected with the data selector 330 and the TD-RSSI calculators 350, RSRP for obtaining the echo signal.The measuring appliance 380 is additionally operable to according to correction factor to described The TD-RSSI of indication signal is modified, the size or sky of the correction factor and Fast Fourier Transform (FFT) The number of subcarrier is relevant.In addition, the measuring appliance 380 is additionally operable to the RSRP according to the echo signal RSRQ is obtained with the TD-RSSI of the amendment.

More than, device 100,200 and 300 provided in an embodiment of the present invention can be selected for different situations The candidate signal of different bandwidth is selected, so that in suitable environment, less bandwidth measurement can be selected RSRQ simultaneously ensures preferable measurement performance, therefore compared with existing WB-RSRQ measuring methods, firmly Part expense is small, low in energy consumption and be provided with adjustable flexibility.

The embodiment of the present invention also provides a kind of device for obtaining Reference Signal Received Quality, described device configuration In digital front-end, shift frequency processing is carried out to each reception signal.With reference to Fig. 4, the embodiment of the present invention is provided A kind of device 400 for obtaining Reference Signal Received Quality.Described device 400 is for every in multiple reception signals Individual reception signal carries out shift frequency processing, and induction signal is eliminated for each reception signal acquisition one of shift frequency The frequency deviation phase to induction signal, can so obtain and correspond to multiple multiple RSRQ for receiving signal respectively And average is taken to the multiple RSRQ.Described device 400 is included with lower component.

It is each in radio-frequency antenna 420, multiple reception signals for obtaining cell, the multiple reception signal Receiving signal includes at least one reference signal.Wherein, the signal that the radio-frequency antenna 420 is received is Analog signal.

Analog-digital converter 410, is connected with the radio-frequency antenna 420, for by it is described it is each reception signal from Analog signal is converted to data signal.

Frequency shifter 470, is connected with the analog-digital converter 410, for being carried out to each reception signal Shift frequency processing.It should be noted that frequency can be produced in the reception signal of each shift frequency by carrying out shift frequency processing Inclined phase.

Signal processor 440, is connected with the frequency shifter 470, the reception for handling each shift frequency Signal, to obtain a corresponding sampled signal with a width of 1.4MHz (that is, 6RB).Wherein, it is described Signal processor 440 is digital signal processor.

In the present embodiment, the signal processor 440 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected.Wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to obtain described Correspondence sampled signal.

With continued reference to Fig. 4, illustrate, in the present embodiment, the signal processor 440 includes Under low pass filter 441, low pass filter 443, low pass filter 445,447,2 times of low pass filter 442,2 times of sampler, 444,2 times of down-sampler down-sampler 446 and 2 times of down-samplers 448, its In, 2 times of down-samplers 442 are connected with the low pass filter 441, the low pass filter 443 442 are connected with 2 times of down-samplers, 2 times of down-samplers 444 are connected with the low pass filter 443, the low pass filter 445 is connected with 2 times of down-samplers 444,2 times of down-samplers 446 are connected with the low pass filter 445, the low pass filter 447 and 2 times of down-samplers 446 connections, and 2 times of down-samplers 448 are connected with the low pass filter 447.

Measuring appliance 480, is connected with signal processor 440 and the frequency shifter 470, for the correspondence Sampled signal carries out eliminating frequency deviation Phase Processing.The measuring appliance 480, which is additionally operable to obtain, eliminates frequency deviation phase Corresponding sampled signal RSRP and eliminate frequency deviation phase corresponding sampled signal RSSI, so as to obtain The each RSRQ for receiving signal of correspondence.So, it is multiple corresponding for the multiple reception signal acquisition RSRQ.In addition, the measuring appliance 480 is additionally operable to take average to the multiple corresponding RSRQ.

It should be noted that described device 400 can eliminate the frequency deviation phase generated by the processing of carry out shift frequency Position, therefore compared with existing WB-RSRQ measuring methods, frequency deviation phase is eliminated for measurement RSRQ Influence, so as to improve measurement performance.

With reference to Fig. 5, the embodiment of the present invention also provides a kind of device 500 for obtaining Reference Signal Received Quality. Described device 500 is used to carry out shift frequency processing for each signal that receives in multiple reception signals, for every The multiple correspondence candidate signals of reception signal acquisition of individual shift frequency, choose from the multiple correspondence candidate signal One correspondence echo signal, eliminates the frequency deviation phase of the correspondence echo signal, then obtains and eliminate frequency deviation The RSRQ of the corresponding echo signal of phase, can so obtain and correspond to the multiple of multiple reception signals respectively RSRQ simultaneously takes average to the multiple RSRQ.Described device 500 is included with lower component.

It is each in radio-frequency antenna 520, multiple reception signals for obtaining cell, the multiple reception signal Receiving signal includes at least one reference signal.Wherein, the signal that the radio-frequency antenna 520 is received is Analog signal.

Analog-digital converter 510, is connected with the radio-frequency antenna 520, for by it is described it is each reception signal from Analog signal is converted to data signal.

Frequency shifter 570, is connected with the analog-digital converter 510, for being carried out to each reception signal Shift frequency processing.It should be noted that frequency can be produced in the reception signal of each shift frequency by carrying out shift frequency processing Inclined phase.

Signal processor 540, is connected with the frequency shifter 570, the reception for handling each shift frequency Signal, to obtain multiple correspondence candidate signals, the multiple correspondence candidate signal has different bandwidth. Wherein, the signal processor 540 is digital signal processor.Wherein, the different bandwidth includes 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 540 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected, wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple correspondence candidate signal of different bandwidth.

With continued reference to Fig. 5, illustrate, in the present embodiment, the signal processor 540 includes Under low pass filter 541, low pass filter 543, low pass filter 545,547,2 times of low pass filter 542,2 times of sampler, 544,2 times of down-sampler down-sampler 546 and 2 times of down-samplers 548, its In, 2 times of down-samplers 542 are connected with the low pass filter 541, the low pass filter 543 542 are connected with 2 times of down-samplers, 2 times of down-samplers 544 are connected with the low pass filter 543, the low pass filter 545 is connected with 2 times of down-samplers 544,2 times of down-samplers 546 are connected with the low pass filter 545, the low pass filter 547 and 2 times of down-samplers 546 connections, and 2 times of down-samplers 548 are connected with the low pass filter 547.

Data selector 560, is connected with the signal processor 540, for corresponding to candidate from the multiple A correspondence echo signal, band a width of 1.4MHz, 3MHz of the correspondence echo signal are chosen in signal Or 5MHz.

Measuring appliance 580, is connected with the data selector 560 and the frequency shifter 570, for described Correspondence echo signal carries out eliminating frequency deviation Phase Processing.The measuring appliance 580, which is additionally operable to obtain, eliminates frequency deviation The RSRP of the corresponding echo signal of phase and the corresponding echo signal of elimination frequency deviation phase RSSI, so that Obtain each RSRQ for receiving signal of correspondence.So, obtain multiple respectively for the multiple reception signal Corresponding RSRQ.In addition, the measuring appliance 580 is additionally operable to take the multiple corresponding RSRQ Value.

It should be noted that described device 500 can eliminate the frequency deviation phase generated by the processing of carry out shift frequency Position, therefore compared with existing WB-RSRQ measuring methods, frequency deviation phase is eliminated for measurement RSRQ Influence, so as to improve RSRQ measurement performances.In addition, described device 500 is it is also an option that compare Bandwidth measurement big 1.4MHz obtains RSRQ further to improve measurement performance, and is provided with adjustable Flexibility.

With reference to Fig. 6, the embodiment of the present invention also provides a kind of device 600 for obtaining Reference Signal Received Quality. Described device 600 is used to carry out shift frequency for each signal that receives in multiple reception signals, is moved for each The multiple correspondence candidate signals of reception signal acquisition of frequency, one is chosen from the multiple correspondence candidate signal Correspondence indication signal, calculates corresponding TD-RSSI based on the correspondence indication signal, is based in the time domain The corresponding TD-RSSI, obtains each RSRQ for receiving signal of correspondence, can so obtain respectively pair Answer multiple RSRQ of multiple reception signals and average is taken to the multiple RSRQ.Described device 600 is wrapped Include with lower component.

It is each in radio-frequency antenna 620, multiple reception signals for obtaining cell, the multiple reception signal Receiving signal includes at least one reference signal.Wherein, the signal that the radio-frequency antenna 620 is received is Analog signal.

Analog-digital converter 610, is connected with the radio-frequency antenna 620, for by it is described it is each reception signal from Analog signal is converted to data signal.

Frequency shifter 670, is connected with the analog-digital converter 610, for being carried out to each reception signal Shift frequency processing.It should be noted that frequency can be produced in the reception signal of each shift frequency by carrying out shift frequency processing Inclined phase.

Signal processor 640, is connected with the frequency shifter 670, the reception for handling each shift frequency Signal, to obtain multiple correspondence candidate signals, the multiple correspondence candidate signal has different bandwidth. Wherein, the signal processor 640 is digital signal processor.Wherein, the different bandwidth includes 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 640 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected, wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple correspondence candidate signal of different bandwidth.

With continued reference to Fig. 6, illustrate, in the present embodiment, the signal processor 640 includes Under low pass filter 641, low pass filter 643, low pass filter 645,647,2 times of low pass filter 642,2 times of sampler, 644,2 times of down-sampler down-sampler 646 and 2 times of down-samplers 648, its In, 2 times of down-samplers 642 are connected with the low pass filter 641, the low pass filter 643 642 are connected with 2 times of down-samplers, 2 times of down-samplers 644 are connected with the low pass filter 643, the low pass filter 645 is connected with 2 times of down-samplers 644,2 times of down-samplers 646 are connected with the low pass filter 645, the low pass filter 647 and 2 times of down-samplers 646 connections, and 2 times of down-samplers 648 are connected with the low pass filter 647.

Data selector 630, is connected with the signal processor 640, for corresponding to candidate from the multiple A correspondence indication signal is chosen in signal.

Time-domain received signal strength indication calculates device 650 (that is, TD-RSSI calculators), with the data Selector 630 is connected, for based on the correspondence indication signal, the correspondence being calculated in the time domain and is referred to Show the RSSI of signal, that is, calculate the TD-RSSI of the correspondence indication signal.

Measuring appliance 680, is connected and institute with the signal processor 640, the TD-RSSI calculators 650 Frequency shifter 670 is stated, for obtaining the corresponding candidate signal with a width of 1.4MHz as correspondence sampled signal, The correspondence sampled signal is carried out eliminating frequency deviation Phase Processing.The measuring appliance 680 is additionally operable to acquisition and disappeared Except the RSRP of the corresponding sampled signal of frequency deviation phase.The measuring appliance 680 is additionally operable to according to correction factor pair The TD-RSSI of the correspondence indication signal is modified, the correction factor and Fast Fourier Transform (FFT) Size or the number of null subcarrier are relevant.The measuring appliance 680 is additionally operable to according to the elimination frequency deviation phase Corresponding sampled signal RSRP and the amendment corresponding indication signal TD-RSSI obtain correspondence it is every The individual RSRQ for receiving signal.So, obtain multiple corresponding respectively for the multiple reception signal RSRQ.In addition, the measuring appliance 680 is additionally operable to take average to the multiple corresponding RSRQ.

It should be noted that described device 600 can eliminate the frequency deviation phase generated by the processing of carry out shift frequency Position, therefore compared with existing WB-RSRQ measuring methods, frequency deviation phase is eliminated for measurement RSRP Influence, so as to improve RSRQ measurement performance.Further, energy measurement is carried out in time domain Hardware spending is very small, and the present embodiment can neatly be supported on the basis of hardware costs is not increased Different bandwidth, can also in the time domain measure according to different bandwidth and strategy and obtain RSSI.

With reference to Fig. 7, the embodiment of the present invention also provides a kind of device 700 for obtaining Reference Signal Received Quality. Described device 700 combines described device 500 and described device 600.Described device 700 is included with lower component.

It is each in radio-frequency antenna 720, multiple reception signals for obtaining cell, the multiple reception signal Receiving signal includes at least one reference signal.Wherein, the signal that the radio-frequency antenna 720 is received is Analog signal.

Analog-digital converter 710, is connected with the radio-frequency antenna 720, for by it is described it is each reception signal from Analog signal is converted to data signal.

Frequency shifter 770, is connected with the analog-digital converter 710, for being carried out to each reception signal Shift frequency processing.It should be noted that frequency can be produced in the reception signal of each shift frequency by carrying out shift frequency processing Inclined phase.

Signal processor 740, is connected with the frequency shifter 770, the reception for handling each shift frequency Signal, to obtain multiple correspondence candidate signals, the multiple correspondence candidate signal has different bandwidth. Wherein, the signal processor 740 is digital signal processor.Wherein, the different bandwidth includes 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz.

In the present embodiment, the signal processor 740 includes at least one low pass filter or at least one Each and at least one described low pass in individual 2 times of down-samplers, at least one described 2 times of down-sampler Wave filter is connected, wherein, at least one described low pass filter is used to carry out low-pass filtering treatment to signal, At least one described 2 times of down-sampler are used to carry out signal 2 times of down-samplings processing, so as to be had The multiple correspondence candidate signal of different bandwidth.

With continued reference to Fig. 7, illustrate, in the present embodiment, the signal processor 740 includes Under low pass filter 741, low pass filter 743, low pass filter 745,747,2 times of low pass filter 742,2 times of sampler, 744,2 times of down-sampler down-sampler 746 and 2 times of down-samplers 748, its In, 2 times of down-samplers 742 are connected with the low pass filter 741, the low pass filter 743 742 are connected with 2 times of down-samplers, 2 times of down-samplers 744 are connected with the low pass filter 743, the low pass filter 745 is connected with 2 times of down-samplers 744,2 times of down-samplers 746 are connected with the low pass filter 745, the low pass filter 747 and 2 times of down-samplers 746 connections, and 2 times of down-samplers 748 are connected with the low pass filter 747.

Data selector 760, is connected with the signal processor 740, for corresponding to candidate from the multiple A correspondence echo signal, band a width of 1.4MHz, 3MHz of the correspondence echo signal are chosen in signal Or 5MHz.

Data selector 730, is connected with the signal processor 740, for corresponding to candidate from the multiple A correspondence indication signal is chosen in signal.

TD-RSSI calculators 750, are connected with the data selector 730, for being referred to based on the correspondence Show signal, the RSSI of the correspondence indication signal is calculated in the time domain, that is, calculate the correspondence and indicate letter Number TD-RSSI.

Measuring appliance 780, with the TD-RSSI calculators 750, the data selector 760 and the shifting Frequency device 770 is connected, for carrying out eliminating frequency deviation Phase Processing to the correspondence echo signal and obtaining elimination The RSRP of the corresponding echo signal of frequency deviation phase.The measuring appliance 780 is additionally operable to according to correction factor to institute The TD-RSSI for stating correspondence indication signal is modified, the correction factor and Fast Fourier Transform (FFT) it is big Small or null subcarrier number is relevant.The measuring appliance 780 is additionally operable to according to the elimination frequency deviation phase It is each that the RSRP of correspondence echo signal and the TD-RSSI of the corresponding indication signal of the amendment obtain correspondence Receive the RSRQ of signal.So, multiple corresponding RSRQ are obtained respectively for the multiple reception signal. In addition, the measuring appliance 780 is additionally operable to take average to the multiple corresponding RSRQ.

More than, device 400,500,600 and 700 provided in an embodiment of the present invention can be eliminated by carrying out The frequency deviation phase that shift frequency is handled and generated, therefore compared with existing WB-RSRQ measuring methods, eliminate Frequency deviation phase is for measuring RSRQ influence, so as to improve RSRQ measurement performance.

The embodiment of the present invention also provides a kind of method for obtaining Reference Signal Received Quality.With reference to Fig. 8, this hair Bright embodiment provides a kind of method 800 for obtaining Reference Signal Received Quality, and methods described 800 is by from obtaining In the multiple candidate signals taken choose an echo signal with measure obtain the echo signal RSRP and RSSI is so as to obtain RSRQ.Methods described 800 comprises the following steps.

801, radio-frequency antenna obtains the reception signal of cell, and the reception signal includes at least one with reference to letter Number.Illustrate, in the present embodiment, radio-frequency antenna receive for analog signal, by mould Number converter carries out turning into data signal after analog-to-digital conversion.It should be noted that the analog signal is in mould Sampled in number conversion with 30.72MHz sample rate, the band for receiving signal is a width of obtained from 20MHz。

It should be noted that in LTE/LTE-A systems OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation in use 15KHz subcarrier spacing.Like this, Effective sub-carrier number that 20MHz bandwidth can be carried is 1200., it is necessary to carry out quick in OFDM Fourier transformation (Fast Fourier Transform, FFT) and inverse FFT (Inverse FFT, IFFT), The premise for carrying out FFT is that the number of discrete point must be 2 integral number power, so a 2^n must be selected Number.It is exactly 2048, therefore FFT and IFFT due to minimum in the 2^n bigger than 1200 number Using 2048 discrete points.Can obtain sample rate by 2048 discrete points and subcarrier spacing for 15KHz is 30.72MHz.Understand that sample rate and system bandwidth are equal based on Principle of Communication, it is believed that LTE/LTE-A is exactly to have used 30.72MHz bandwidth, but be due to many subcarriers do not put data be gap carry Ripple, therefore LTE/LTE-A is actual occupies 20M effective bandwidth, so being referred to as a 20M band Wide system.

803, signal is received described in signal processor processes, to obtain multiple candidate signals, the multiple time Select signal that there are different bandwidth.Illustrate, it is in the present embodiment, first to the reception signal LPF is carried out, then carries out 2 times of down-samplings (down sampling) obtaining 1024 discrete points.Base It is that can to obtain sample rate be 15.36MHz to 15KHz in 1024 discrete points and subcarrier spacing.Sample rate and Bandwidth is equal, then removes null subcarrier and obtains the sampling letter with a width of 10MHz (that is, 50RB) Number, the bandwidth of the 10MHz is located at the centre of 20MHz bandwidth.

In the present embodiment, then, 10MHz a width of to band sampled signal first carries out LPF, 2 times of down-samplings are carried out again obtains 512 discrete points.It is based on 512 discrete points and subcarrier spacing It is 7.68MHz that 15KHz, which can obtain sample rate,.Sample rate and bandwidth are equal, then remove null subcarrier The sampled signal with a width of 5MHz (that is, 25RB) is obtained, the bandwidth of the 5MHz is located at 10MHz The centre of bandwidth.

In the present embodiment, then, 5MHz a width of to band sampled signal first carries out LPF, 2 times of down-samplings are carried out again obtains 256 discrete points.It is based on 256 discrete points and subcarrier spacing It is 3.84MHz that 15KHz, which can obtain sample rate,.Sample rate and bandwidth are equal, then remove null subcarrier The sampled signal with a width of 3MHz (that is, 15RB) is obtained, the bandwidth of the 3MHz is located at 5MHz The centre of bandwidth.

In the present embodiment, then, 3MHz a width of to band sampled signal first carries out LPF, 2 times of down-samplings are carried out again obtains 128 discrete points.It is based on 128 discrete points and subcarrier spacing It is 1.92MHz that 15KHz, which can obtain sample rate,.Sample rate and bandwidth are equal, then remove null subcarrier The sampled signal with a width of 1.4MHz (that is, 6RB) is obtained, the bandwidth of the 1.4MHz is located at 3MHz The centre of bandwidth.

Therefore, in the present embodiment, obtained by carrying out multiple low-pass filtering treatment and 2 times of down-sampling processing Obtain sampled signal, a width of 3MHz of the band sampled signal and the bandwidth of a width of 5MHz of band The multiple candidate signal is used as 1.4MHz sampled signal.

It should be noted that each RB a width of 180KHz of band.Thus, for example 15RB band is a width of 2.7MHz, along with necessary protection bandwidth, obtains 3MHz bandwidth.It can similarly obtain, 6RB, 25RB Bandwidth 1.4MHz, 5MHz and 10MHz corresponding with 50RB.

805, data selector chooses an echo signal from the multiple candidate signal.Illustrate It is that in the present embodiment, the multiple candidate signal is transferred into the data selector, by the data Selector selects the echo signal.

807, based on the echo signal, measuring appliance obtains the RSRP and the target of the echo signal The RSSI of signal, so as to obtain RSRQ.Illustrate, RSRQ expression formula is

Wherein, N refers to the quantity of RB in the echo signal, i.e., the bandwidth of described echo signal divided by 180KHz.Wherein, RSRP and RSSI can be measured based on frequency domain.

In certain embodiments, methods described 800 can also comprise the following steps.According to communication standard, The RSRQ of the acquisition is analyzed, if the RSRQ of the acquisition is more than one in the communication standard Threshold value, obtains the candidate signal smaller than the echo signal bandwidth to update from the multiple candidate signal The echo signal.And, based on the echo signal of the renewal, obtain the RSRQ updated.

In certain embodiments, methods described 800 can also comprise the following steps.According to communication standard, The RSRQ of the acquisition is analyzed, if the RSRQ of the acquisition is less than one in the communication standard Threshold value, obtains the candidate signal more roomy than the echo signal band to update from the multiple candidate signal The echo signal.And, based on the echo signal of the renewal, obtain the RSRQ updated.

It should be noted that using a width of 1.4MHz of band sampled signal, i.e., receiving letter using described The 6RB of number centre carries out RSRQ measurements, i.e., the narrow band detection method used under normal conditions.At some In the case of, the RSRQ surveyed when middle 1.4MHz bandwidth is inaccurate (for example, middle 1.4MHz Bandwidth is by less interference, and other bandwidth are by larger interference), then need bigger bandwidth go into Row RSRQ measures to obtain more accurately RSRQ.Therefore it can be selected according to different interference profile situations Select a width of 3MHz of band sampled signal or a width of 5MHz of band sampled signal goes to carry out WB-RSRQ is measured.Like this, in suitable environment, it can use than 50RB (that is, 10MHz Bandwidth) small bandwidth measurement RSRQ and ensure preferable measurement performance.Surveyed with existing WB-RSRQ Amount method is compared, and hardware spending is small, low in energy consumption.Because situation can be disturbed from not according to different Same bandwidth goes measurement to obtain RSRQ, so being provided with adjustable flexibility.

With reference to Fig. 9, the embodiment of the present invention also provides a kind of method 900 for obtaining Reference Signal Received Quality, Methods described 900 obtains time domain RSSI (TD-RSSI) in time-domain calculation RSSI, is then based on TD-RSSI Obtain RSRQ.Methods described 900 comprises the following steps.

901, radio-frequency antenna obtains the reception signal of cell, and the reception signal includes at least one with reference to letter Number.Illustrate, in the present embodiment, radio-frequency antenna receive for analog signal, by mould Number converter carries out turning into data signal after analog-to-digital conversion.It should be noted that the analog signal is in mould Sampled in number conversion with 30.72MHz sample rate, the band for receiving signal is a width of obtained from 20MHz。

903, signal is received described in signal processor processes, to obtain multiple candidate signals, the multiple time Select signal that there are different bandwidth.Illustrate, in the present embodiment, by carrying out multiple low pass Filtering and 2 times of down-sampling processing, obtain the sampled signal with a width of 10MHz, adopting with a width of 5MHz Sample signal, the sampled signal with a width of 3MHz and the sampled signal with a width of 1.4MHz.Multiple low pass Filtering and 2 times of down-sampling processing procedures are as described above, will not be repeated here.Therefore, in the present embodiment, The reception signal (with a width of 20MHz), a width of 10MHz of band sampled signal, the bandwidth For 5MHz sampled signal, a width of 3MHz of band sampled signal and a width of 1.4MHz of the band Sampled signal be used as the multiple candidate signal.

905, data selector chooses an indication signal from the multiple candidate signal.Illustrate It is that in the present embodiment, the multiple candidate signal is transferred into the data selector, by the number The indication signal is selected according to selector.

907, based on the indication signal, TD-RSSI calculators calculate the indication signal in the time domain TD-RSSI.Wherein, the indication signal is to be sent to the TD-RSSI by the data selector Calculator.

In certain embodiments, calculate in the time domain the indication signal TD-RSSI can include with Lower step.According to communication standard, the TD-RSSI of the indication signal is analyzed, if the indication signal TD-RSSI be more than the communication standard in a threshold value, from the multiple candidate signal obtain ratio The small candidate signal of the indication signal bandwidth is to update the indication signal.And, updated based on described Indication signal, the TD-RSSI of the indication signal of renewal is calculated in the time domain.

In certain embodiments, calculate in the time domain the indication signal TD-RSSI can include with Lower step.According to communication standard, the TD-RSSI of the indication signal is analyzed, if the indication signal TD-RSSI be less than the communication standard in a threshold value, from the multiple candidate signal obtain ratio The roomy candidate signal of the indication signal band is to update the indication signal.And, updated based on described Indication signal, the TD-RSSI of the indication signal of renewal is calculated in the time domain.

909, measuring appliance obtains the RSRP of a candidate signal in the multiple candidate signal；Obtained to described The TD-RSSI of the indication signal taken is modified processing；And according to the RSRP of one candidate signal RSRQ is obtained with the TD-RSSI of the indication signal of the amendment.In the present embodiment, it is one to wait Select the sampled signal that signal is a width of 1.4MHz of the band.Illustrate, RSRQ expression formula For：

Compared with expression formula (1), RSSI=TD-RSSI* η in expression formula (2).Wherein, η is amendment Coefficient, for being modified to TD-RSSI, the correction factor η and FFT sizes and null subcarrier Number it is relevant, for example, η is equal to the difference divided by FFT sizes of the number of FFT sizes and null subcarrier. It should be noted that because in OFDM modulation, the two ends for receiving signal bandwidth all have null subcarrier, And in the time domain, null subcarrier can not be removed from signal is received, it is therefore desirable to which TD-RSSI is carried out Amendment obtains null subcarrier for the TD-RSSI obtained in time domain influence to remove two ends.

It should be noted that it is very small in the hardware spending that time domain carries out energy measurement, and the present embodiment Different bandwidth can be neatly supported on the basis of hardware costs is not increased, can also be according to different Measurement obtains RSSI in the time domain for bandwidth and strategy.

With reference to Figure 10, the embodiment of the present invention also provides a kind of method 1000 for obtaining Reference Signal Received Quality, Methods described 1000 combines methods described 800 and methods described 900.Methods described 1000 includes following step Suddenly.

1001, radio-frequency antenna obtains the reception signal of cell, and the reception signal is referred to including at least one Signal.Illustrate, in the present embodiment, radio-frequency antenna receive for analog signal, pass through Analog-digital converter carries out turning into data signal after analog-to-digital conversion.It should be noted that the analog signal exists Sampled in analog-to-digital conversion with 30.72MHz sample rate, the bandwidth for receiving signal obtained from For 20MHz.

1003, signal is received described in signal processor processes, it is the multiple to obtain multiple candidate signals Candidate signal has different bandwidth.Illustrate, it is in the present embodiment, repeatedly low by carrying out Pass filter and 2 times of down-sampling processing, obtain the sampled signal with a width of 10MHz, with a width of 5MHz's Sampled signal, the sampled signal with a width of 3MHz and the sampled signal with a width of 1.4MHz.It is repeatedly low Pass filter and 2 times of down-sampling processing procedures are as described above, will not be repeated here.Therefore, in the present embodiment In, it is the reception signal (with a width of 20MHz), a width of 10MHz of band sampled signal, described Sampled signal with a width of 5MHz, a width of 3MHz of band sampled signal and the band are a width of 1.4MHz sampled signal is used as the multiple candidate signal.

1005, the first data selector is from the band in the multiple candidate signal a width of 1.4MHz, 3MHz And an echo signal is chosen in 5MHz sampled signal.Illustrate, in the present embodiment, The sampled signal of a width of 5MHz of band, a width of 3MHz of the band sampled signal and the bandwidth First data selector is transferred into for 1.4MHz sampled signal, by first data selector Select the echo signal.

1007, the second data selector chooses an indication signal from the multiple candidate signal.Specifically Illustrate, in the present embodiment, the multiple candidate signal is transferred into second data selector, The indication signal is selected by second data selector.

1009, based on the indication signal, TD-RSSI calculators calculate the acquisition finger in the time domain Show the TD-RSSI of signal.Wherein, the indication signal is to be sent to institute by second data selector State TD-RSSI calculators.

1011, measuring appliance obtains the RSRP of the echo signal；To the TD-RSSI of the indication signal It is modified processing；And, according to the RSRP of the echo signal and the amendment indication signal TD-RSSI obtains RSRQ.Illustrate, in the present embodiment, obtained according to expression formula (2) RSRQ。

In certain embodiments, the RSRP for obtaining the echo signal comprises the following steps.According to communication Standard, analyzes the RSRP of the echo signal, if the RSRP of the echo signal is more than the communication A threshold value in standard, from the band a width of 1.4MHz, 3MHz and 5HMz sampled signal The candidate signal smaller than the echo signal bandwidth is obtained to update the echo signal.And, based on institute The echo signal of renewal is stated, the Reference Signal Received Power updated is obtained.

In certain embodiments, the RSRP for obtaining the echo signal comprises the following steps.According to communication Standard, analyzes the RSRP of the echo signal, if the RSRP of the echo signal is less than the communication A threshold value in standard, from the band a width of 1.4MHz, 3MHz and 5HMz sampled signal The candidate signal more roomy than the echo signal band is obtained to update the echo signal.And, based on institute The echo signal of renewal is stated, the Reference Signal Received Power updated is obtained.

More than, method 800,900 and 1000 provided in an embodiment of the present invention can be with for different situations The candidate signal of different bandwidth is selected, so that in suitable environment, less bandwidth measurement can be selected RSRQ simultaneously ensures preferable measurement performance, therefore compared with existing WB-RSRQ measuring methods, firmly Part expense is small, low in energy consumption and be provided with adjustable flexibility.

The embodiment of the present invention also provides a kind of method for obtaining Reference Signal Received Quality, methods described docking The collection of letters number carries out a shift frequency processing.With reference to Figure 11, the embodiment of the present invention provides a kind of reference signal that obtains and received The method 1100 of quality.Methods described 1100 carries out shift frequency for each signal that receives in multiple reception signals And the frequency deviation phase of the reception signal of each shift frequency is eliminated, it can so obtain and correspond to multiple reception letters respectively Number multiple RSRQ, average then is taken to the multiple RSRQ.Methods described 1100 includes following step Suddenly.

1101, radio-frequency antenna obtains each in multiple reception signals of cell, the multiple reception signal Receiving signal includes at least one reference signal.Illustrate, in the present embodiment, radio-frequency antenna Receive it is described it is each reception signal be analog signal, by analog-digital converter carry out analog-to-digital conversion after into For data signal.It should be noted that the analog signal in analog-to-digital conversion with 30.72MHz sampling Rate is sampled, each a width of 20MHz of band for receiving signal obtained from.

1103, frequency shifter carries out shift frequency processing to each reception signal.Illustrate, to institute State each reception signal and be multiplied by a phaseWherein, f_sRefer to sample rate, n refers to frequency deviation phase And Δ f refers to the amount of shift frequency.It should be noted that in LTE/LTE-A systems, if each reception The band a width of 20MHz, f of signal_sFor 30.72MHz 2048 discrete points of correspondence.Subcarrier spacing is 15KHz, thus the shift frequency amount be 15KHz integral multiple, i.e. Δ f=m*15k, wherein, m is whole Number.Under such circumstances, it is describedIt can be expressed as：

For different reception signals, m value is different.Meanwhile, Δ f=m*15k is sent to measurement Device.

1105, the reception signal of each shift frequency of signal processor processes corresponds to sampled signal to obtain one. Illustrate, in the present embodiment, LPF is first carried out to each reception signal, then enter 2 times of down-samplings of row (down sampling) obtain 1024 discrete points.Based on 1024 discrete points and It is 15.36MHz that subcarrier spacing can obtain sample rate for 15KHz.Sample rate and bandwidth be it is equal, so Null subcarrier is removed afterwards obtains the corresponding sampled signal with a width of 10MHz (that is, 50RB), wherein, institute The bandwidth for stating 10MHz is located at the centre of 20MHz bandwidth.

In the present embodiment, then, 10MHz a width of to the band corresponding sampled signal first carries out low pass Filter, then carry out 2 times of down-samplings and obtain 512 discrete points.Based on 512 between discrete point and subcarrier It is 7.68MHz to be divided into 15KHz and can obtain sample rate.Sample rate and bandwidth are equal, then remove gap Carrier wave obtains the corresponding sampled signal with a width of 5MHz (that is, 25RB), wherein, the 5MHz's Bandwidth is located at the centre of 10MHz bandwidth.

In the present embodiment, then, 5MHz a width of to the band corresponding sampled signal first carries out low pass Filter, then carry out 2 times of down-samplings and obtain 256 discrete points.Based on 256 between discrete point and subcarrier It is 3.84MHz to be divided into 15KHz and can obtain sample rate.Sample rate and bandwidth are equal, then remove gap Carrier wave obtains the corresponding sampled signal with a width of 3MHz (that is, 15RB), wherein, the 3MHz's Bandwidth is located at the centre of 5MHz bandwidth.

In the present embodiment, then, 3MHz a width of to the band corresponding sampled signal first carries out low pass Filter, then carry out 2 times of down-samplings and obtain 128 discrete points.Based on 128 between discrete point and subcarrier It is 1.92MHz to be divided into 15KHz and can obtain sample rate.Sample rate and bandwidth are equal, then remove gap Carrier wave obtains the corresponding sampled signal with a width of 1.4MHz (that is, 6RB), wherein, the 1.4MHz Bandwidth be located at 3MHz bandwidth centre.The corresponding sampled signal of a width of 1.4MHz of band is transferred into Measuring appliance.

1107, the measuring appliance carries out frequency deviation elimination of the phase processing to the correspondence sampled signal, described right Answer a width of 1.4MHz of band of sampled signal.Illustrate, with reference to Figure 12, in LTE/LTE-A systems In system, if each receiving a width of 20MHz of band of signal, i.e., including 2048 discrete points, work as cyclic prefix When (Cyclic Prefix, CP) is general cyclic prefix, the first signal 1201 in every seven receptions signal Start-phase 1210 beWherein, numeral 160 refers to following for first signal 1201 The number for the discrete point that ring prefix 1202 takes.By deriving, the 5th signal in every seven receptions signal 1203 start-phase 1220 is：

Wherein, numeral 144 refers to every seven cyclic prefix 1204 for receiving the second to the 7th signal in signal The number of the discrete point of occupancy.First signal 1201 and the 5th signal 1203 are contrasted, can be seen Go out the 5th signal 1203 and generate a phase than first signal more than 1201This is due to the phase that shift frequency is produced, if not eliminating the phase, can cause frequency deviation Mistake is estimated, so as to cause measurement result to deteriorate.Accordingly, it would be desirable to be multiplied by corresponding correspondence candidate signal The conjugation of the corresponding phase produced due to shift frequency, i.e., described first signal 1201 is multiplied by conjugate phase5th signal 1203 is multiplied by conjugate phaseIt can just disappear Influence except the frequency deviation phase produced by shift frequency to offset estimation, from without causing measurement RSRQ performances to be disliked Change.Wherein, the discrete point number of cyclic prefix is determined by communication standard.

1109, based on the corresponding sampled signal of the elimination frequency deviation phase, measuring appliance obtains described eliminate frequently The RSRP of the corresponding sampled signal of inclined phase and the corresponding sampled signal of the elimination frequency deviation phase RSSI, so as to obtain each RSRQ for receiving signal of correspondence, so corresponds to the multiple reception signal point Multiple corresponding RSRQ are not obtained.Illustrate, the RSRQ is obtained by expression formula (1) Take, wherein, what RSRP and RSSI can be measured based on frequency domain.

In the present embodiment, methods described 1100 also includes the measuring appliance to the multiple corresponding RSRQ takes average.

In certain embodiments, followed for other bandwidth (for example, 3MHz, 5HMz etc.) or extension The situation of ring prefix (for example, first cyclic prefix includes being more than 160 subcarriers), similarly, Shift frequency is carried out in digital front-end, the frequency deviation phase produced by shift frequency is then eliminated in measuring appliance, is passed through Time-multiplexed mode realizes that WB-RSRQ is measured.

It should be noted that the method 1100 for obtaining Reference Signal Received Quality can be eliminated by carrying out The frequency deviation phase that shift frequency is handled and generated, therefore compared with existing WB-RSRQ measuring methods, eliminate Frequency deviation phase is for measuring RSRQ influence, so as to improve measurement performance.

With reference to Figure 13, the embodiment of the present invention also provides a kind of method 1300 for obtaining Reference Signal Received Quality. Methods described 1300 carries out shift frequency for each signal that receives in multiple reception signals, handles each shift frequency Receive signal and obtain multiple correspondence candidate signals, correspondence target is chosen from the multiple correspondence candidate signal Signal, eliminates the frequency deviation phase of the correspondence echo signal, obtains the corresponding target letter for eliminating frequency deviation phase Number RSRQ, can so obtain respectively correspond to it is multiple receive signals multiple RSRQ and to described many Individual RSRQ takes average.Methods described 1300 comprises the following steps.

1301, radio-frequency antenna obtains each in multiple reception signals of cell, the multiple reception signal Receiving signal includes at least one reference signal.Illustrate, in the present embodiment, radio-frequency antenna Receive it is described it is each reception signal be analog signal, by analog-digital converter carry out analog-to-digital conversion after into For data signal.It should be noted that the analog signal in analog-to-digital conversion with 30.72MHz sampling Rate is sampled, each a width of 20MHz of band for receiving signal obtained from.

1303, frequency shifter carries out shift frequency processing to each reception signal.Illustrate, to institute State each reception signal and be multiplied by a phaseWherein, f_sRefer to sample rate, n refers to frequency deviation phase And Δ f refers to the amount of shift frequency, wherein, Δ f=m*15k is transferred into measuring appliance.

1305, the reception signal of each shift frequency of signal processor processes, to obtain multiple correspondence candidate signals, The multiple correspondence candidate signal has different bandwidth.Illustrate, in the present embodiment, lead to Cross and multiple LPF and 2 times of down-sampling processing are carried out to the reception signal of each shift frequency, obtain band A width of 10MHz corresponding sampled signal, the corresponding sampled signal with a width of 5MHz, with a width of 3MHz Corresponding sampled signal and corresponding sampled signal with a width of 1.4MHz.Under multiple LPF and 2 times Resampling process is as described above, will not be repeated here.Therefore, in the present embodiment, the band is a width of 5MHz corresponding sampled signal, a width of 3MHz of the band corresponding sampled signal and the band are a width of 1.4MHz corresponding sampled signal is used as the multiple correspondence candidate signal.

1307, data selector chooses a correspondence echo signal from the multiple correspondence candidate signal. Illustrate, in the present embodiment, the multiple correspondence candidate signal is sent to the data choosing Device is selected, by the data selector selection correspondence echo signal.

1309, the measuring appliance carries out eliminating frequency deviation Phase Processing to the correspondence echo signal.Eliminate frequency Inclined Phase Processing process is as described above, will not be repeated here.

1311, the measuring appliance obtains the RSRP for the corresponding echo signal for eliminating frequency deviation phase and eliminates frequency The RSSI of the corresponding echo signal of inclined phase, so as to obtain each RSRQ for receiving signal of correspondence.So, Multiple corresponding RSRQ are obtained respectively for the multiple reception signal.Illustrate, it is described RSRQ is obtained according to expression formula (1).

In the present embodiment, methods described 1300 also includes：The measuring appliance is to the multiple corresponding RSRQ takes average.

In certain embodiments, obtaining the method for Reference Signal Received Quality can also comprise the following steps. According to communication standard, the RSRQ of the acquisition is analyzed, if the RSRQ of the acquisition is more than described lead to A threshold value during beacon is accurate, is obtained from the multiple correspondence candidate signal than the correspondence echo signal The small corresponding candidate signal of bandwidth with update it is described correspondence echo signal.And, pair based on the renewal Echo signal is answered, the RSRQ updated is obtained.

In certain embodiments, obtaining the method for Reference Signal Received Quality can also comprise the following steps. According to communication standard, the RSRQ of the acquisition is analyzed, if the RSRQ of the acquisition is less than described lead to A threshold value during beacon is accurate, is obtained from the multiple correspondence candidate signal than the correspondence echo signal With roomy corresponding candidate signal with update it is described correspondence echo signal.And, pair based on the renewal Echo signal is answered, the RSRQ updated is obtained.

It should be noted that the method 1300 for obtaining Reference Signal Received Quality can be eliminated by carrying out The frequency deviation phase that shift frequency is handled and generated, therefore compared with existing WB-RSRQ measuring methods, eliminate Frequency deviation phase is for measuring RSRQ influence, so as to improve measurement performance.Methods described 1300 is also The bandwidth measurement bigger than 1.4MHz can be selected to obtain RSRQ further to improve measurement performance, and It is provided with adjustable flexibility.

With reference to Figure 14, the embodiment of the present invention also provides a kind of method 1400 for obtaining Reference Signal Received Quality. Methods described 1400 receives each reception signal progress shift frequency in signals for multiple, handles each shifting The reception of frequency obtains multiple correspondence candidate signals, and a correspondence is chosen from the multiple correspondence candidate signal Indication signal, the TD-RSSI of correspondence indication signal is calculated based on the correspondence indication signal in the time domain, Based on the TD-RSSI of the correspondence indication signal, each RSRQ for receiving signal of correspondence is obtained, so may be used To obtain the multiple multiple RSRQ for receiving signal of correspondence respectively and take average to the multiple RSRQ.Institute Method 1400 is stated to comprise the following steps.

1401, radio-frequency antenna obtains each in multiple reception signals of cell, the multiple reception signal Receiving signal includes at least one reference signal.Illustrate, in the present embodiment, radio-frequency antenna Receive it is described it is each reception signal be analog signal, by analog-digital converter carry out analog-to-digital conversion after into For data signal.It should be noted that the analog signal in analog-to-digital conversion with 30.72MHz sampling Rate is sampled, each a width of 20MHz of band for receiving signal obtained from.

1403, frequency shifter carries out shift frequency processing to each reception signal.Illustrate, to institute State each reception signal and be multiplied by a phaseWherein, f_sRefer to sample rate, n refers to frequency deviation phase And Δ f refers to the amount of shift frequency, wherein, Δ f=m*15k is sent to measuring appliance.

1405, the reception signal of each shift frequency of signal processor processes, to obtain multiple correspondence candidate signals, The multiple correspondence candidate signal has different bandwidth.Illustrate, in the present embodiment, lead to Cross and multiple LPF and 2 times of down-sampling processing are carried out to the reception signal of each shift frequency, obtain band A width of 10MHz corresponding sampled signal, the corresponding sampled signal with a width of 5MHz, with a width of 3MHz Corresponding sampled signal and corresponding sampled signal with a width of 1.4MHz.Under multiple LPF and 2 times Resampling process is as described above, will not be repeated here.Therefore, in the present embodiment, it is described each to connect The collection of letters number (with a width of 20MHz), a width of 10MHz of the band corresponding sampled signal, the band are a width of 5MHz corresponding sampled signal, a width of 3MHz of the band corresponding sampled signal and the band are a width of 1.4MHz corresponding sampled signal is used as the multiple correspondence candidate signal.

1407, data selector chooses a correspondence indication signal from the multiple correspondence candidate signal. Illustrate, in the present embodiment, the multiple correspondence candidate signal is transferred into the data choosing Device is selected, by the data selector selection correspondence indication signal.

1409, based on the correspondence indication signal, TD-RSSI calculators calculate described right in the time domain Answer the TD-RSSI of indication signal.Wherein, the correspondence indication signal is transmitted by the data selector To the TD-RSSI calculators.

In certain embodiments, the TD-RSSI of the correspondence indication signal is calculated in the time domain to be wrapped Include step.According to communication standard, the TD-RSSI of the correspondence indication signal is analyzed, if described The TD-RSSI of correspondence indication signal is more than a threshold value in the communication standard, from the multiple correspondence The corresponding candidate signal smaller than the correspondence indication signal bandwidth is obtained in candidate signal to update the correspondence Indication signal.And, the corresponding indication signal based on the renewal calculates pair updated in the time domain Answer the TD-RSSI of indication signal.

In certain embodiments, the TD-RSSI of the correspondence indication signal is calculated in the time domain to be wrapped Include step.According to communication standard, the TD-RSSI of the correspondence indication signal is analyzed, if described The TD-RSSI of correspondence indication signal is less than a threshold value in the communication standard, from the multiple correspondence The corresponding candidate signal more roomy than the correspondence indication signal band is obtained in candidate signal to update the correspondence Indication signal.And, the corresponding indication signal based on the renewal calculates pair updated in the time domain Answer the TD-RSSI of indication signal.

1411, the measuring appliance obtains a correspondence candidate signal in the multiple correspondence candidate signal, right One correspondence candidate signal carries out eliminating frequency deviation Phase Processing.In the present embodiment, the correspondence is waited Select the sampled signal that signal is a width of 1.4MHz of the band.Eliminate the processing procedure as above institute of frequency deviation phase State, will not be repeated here.

1413, the measuring appliance obtains the RSRP of one correspondence candidate signal；To pair of the acquisition The TD-RSSI of indication signal is answered to be modified processing；And, according to one correspondence candidate signal The RSRP and TD-RSSI of the corresponding indication signal of the amendment obtains each reception signal of correspondence RSRQ.So, multiple corresponding RSRQ are obtained respectively for the multiple reception signal.

Illustrate, in the present embodiment, pair of the measuring appliance based on a width of 1.4MHz of the band Answer sampled signal measurement to obtain RSRP, obtain the TD-RSSI from the TD-RSSI calculators, so Afterwards, according to expression formula (2), each RSRQ for receiving signal of correspondence is obtained.Wherein, using correction factor TD-RSSI is modified, the correction factor is relevant with the number of FFT sizes and null subcarrier.

It should be noted that methods described 1400 can eliminate the frequency deviation phase generated by the processing of carry out shift frequency Position, therefore compared with existing WB-RSRQ measuring methods, frequency deviation phase is eliminated for measurement RSRP Influence, so as to improve RSRQ measurement performance.Further, energy measurement is carried out in time domain Hardware spending is very small, and the present embodiment can neatly be supported on the basis of hardware costs is not increased Different bandwidth, can also in the time domain measure according to different bandwidth and strategy and obtain RSSI.

With reference to Figure 15, the embodiment of the present invention also provides a kind of method 1500 for obtaining Reference Signal Received Quality, Methods described 1500 combines methods described 1400 and methods described 1300.Methods described 1500 includes following Step.

1501, radio-frequency antenna obtains each in multiple reception signals of cell, the multiple reception signal Receiving signal includes at least one reference signal.Illustrate, in the present embodiment, radio-frequency antenna Receive it is described it is each reception signal be analog signal, by analog-digital converter carry out analog-to-digital conversion after into For data signal.It should be noted that the analog signal in analog-to-digital conversion with 30.72MHz sampling Rate is sampled, each a width of 20MHz of band for receiving signal obtained from.

1503, frequency shifter carries out shift frequency processing to each reception signal.Illustrate, to institute State each reception signal and be multiplied by a phaseWherein, f_sRefer to sample rate, n refers to frequency deviation phase And Δ f refers to the amount of shift frequency, wherein, Δ f=m*15k is sent to measuring appliance.

1505, the reception signal of each shift frequency of signal processor processes, to obtain multiple correspondence candidate signals, Wherein, the multiple correspondence candidate signal has different bandwidth.Illustrate, in the present embodiment In, multiple LPF is carried out by the reception signal to each shift frequency and 2 times of down-samplings are handled, Obtain the corresponding sampled signal with a width of 10MHz, the corresponding sampled signal with a width of 5MHz, with a width of 3MHz corresponding sampled signal and the corresponding sampled signal with a width of 1.4MHz.Multiple LPF and 2 times of down-sampling processing procedures are as described above, will not be repeated here.Therefore, in the present embodiment, it is described every Individual reception signal (with a width of 20MHz), a width of 10MHz of the band corresponding sampled signal, the band A width of 5MHz corresponding sampled signal, a width of 3MHz of the band corresponding sampled signal and the band A width of 1.4MHz corresponding sampled signal is used as the multiple correspondence candidate signal.

1507, the first data selector from it is the multiple correspondence candidate signal in a width of 1.4MHz of band, A correspondence echo signal is chosen in 3MHz and 5MHz corresponding sampled signal.Illustrate, In the present embodiment, a width of 5MHz of the band corresponding sampled signal, a width of 3MHz of the band pair Sampled signal and a width of 1.4MHz of the band corresponding sampled signal is answered to be transferred into first data Selector, by first data selector selection correspondence echo signal.

1509, the second data selector chooses a correspondence from the multiple correspondence candidate signal and indicates letter Number.Illustrate, in the present embodiment, the multiple correspondence candidate signal is transferred into described the Two data selectors, by second data selector selection correspondence indication signal.

1511, based on the correspondence indication signal, TD-RSSI calculators calculate described right in the time domain Answer the TD-RSSI of indication signal.Wherein, the correspondence indication signal is by second data selector It is sent to the TD-RSSI calculators.

In certain embodiments, the TD-RSSI of the correspondence indication signal is calculated in the time domain to be wrapped Include following steps.According to communication standard, the TD-RSSI of the correspondence indication signal is analyzed, if described The TD-RSSI of correspondence indication signal is more than a threshold value in the communication standard, from the multiple correspondence The corresponding candidate signal smaller than the correspondence indication signal bandwidth is obtained in candidate signal to update the correspondence Indication signal.And, the corresponding indication signal based on the renewal calculates pair updated in the time domain Answer the TD-RSSI of indication signal.

In certain embodiments, the TD-RSSI of the correspondence indication signal is calculated in the time domain to be wrapped Include following steps.According to communication standard, the TD-RSSI of the correspondence indication signal is analyzed, if described The TD-RSSI of correspondence indication signal is less than a threshold value in the communication standard, from the multiple correspondence The corresponding candidate signal more roomy than the correspondence indication signal band is obtained in candidate signal to update the correspondence Indication signal.And, the corresponding indication signal based on the renewal calculates pair updated in the time domain Answer the TD-RSSI of indication signal.

1513, the measuring appliance carries out eliminating frequency deviation Phase Processing to the correspondence echo signal, and obtains The RSRP of the corresponding echo signal for eliminating frequency deviation phase.Eliminate the processing procedure as above institute of frequency deviation phase State, will not be repeated here.

1515, the measuring appliance is modified processing to the TD-RSSI of the correspondence indication signal of acquisition, And letter is indicated according to the RSRP of corresponding echo signal and the correspondence of the amendment of the elimination frequency deviation phase Number TD-RSSI obtain each RSRQ for receiving signal of correspondence, so, believe for the multiple receive Number multiple corresponding RSRQ are obtained respectively.Illustrate, in the present embodiment, the RSRQ It is to be obtained according to expression formula (2).Wherein, TD-RSSI is modified using correction factor, it is described Correction factor is relevant with the number of FFT sizes and null subcarrier.

More than, method 1100,1300,1400 and 1500 provided in an embodiment of the present invention can eliminate by The frequency deviation phase for carrying out shift frequency processing and generating, therefore compared with existing WB-RSRQ measuring methods, Influence of the frequency deviation phase for measurement RSRQ is eliminated, so as to improve RSRQ measurement performance.

Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention Shield scope should be defined by claim limited range.

Claims

1. a kind of device for obtaining Reference Signal Received Quality, it is characterised in that including：

Radio-frequency antenna, the reception signal for obtaining cell, wherein, the reception signal includes at least one Individual reference signal；

Signal processor, for handling the reception signal, to obtain multiple candidate signals, wherein, institute Stating multiple candidate signals has different bandwidth；

At least one data selector, is connected with the signal processor, at least one data selection Being each respectively used to from the multiple candidate signal in device chooses a measured signal；And

Measuring appliance, for based on the measured signal, obtaining Reference Signal Received Quality.

2. device as claimed in claim 1, it is characterised in that also include：Analog-digital converter, respectively with institute Radio-frequency antenna and signal processor connection are stated, for the reception signal from analog signal to be converted to Data signal.

3. device as claimed in claim 2, it is characterised in that it is low that the signal processor includes at least one In bandpass filter or at least one 2 times of down-sampler, at least one described 2 times of down-sampler it is each with At least one low pass filter connection, wherein, at least one described low pass filter is used for signal Low-pass filtering treatment is carried out, at least one described 2 times of down-sampler are used to carry out 2 times of down-samplings to signal Processing, so as to obtain the multiple candidate signal with different bandwidth.

4. device as claimed in claim 3, it is characterised in that at least one described low pass filter includes the One low pass filter, the second low pass filter, the 3rd low pass filter, the 4th low pass filter is described At least one 2 times of down-sampler includes the one 2 times of down-sampler, the 2nd 2 times of down-sampler, the 3rd 2 Times down-sampler and the 4th 2 times of down-sampler, wherein, the one 2 times of down-sampler and described the One low pass filter is connected, and second low pass filter is connected with the one 2 times of down-sampler, institute State the 2nd 2 times of down-sampler to be connected with second low pass filter, the 3rd low pass filter and institute The 2nd 2 times of down-sampler connection is stated, the 3rd 2 times of down-sampler connects with the 3rd low pass filter Connect, the 4th low pass filter is connected with the 3rd 2 times of down-sampler, and described 4th 2 times Down-sampler is connected with the 4th low pass filter.

5. such as device any one of in Claims 1-4, it is characterised in that the measured signal bag Echo signal is included, at least one described data selector includes the first data selector, with the measuring appliance Connection, for choosing the echo signal from the multiple candidate signal.

6. device as claimed in claim 5, it is characterised in that the measuring appliance obtains the echo signal The received signal strength indicator of Reference Signal Received Power and the echo signal, so as to obtain the reference Signal receiving quality.

7. such as device any one of in Claims 1-4, it is characterised in that the measured signal bag Indication signal is included, at least one described data selector includes the second data selector, for described many The indication signal is chosen in individual candidate signal.

8. device as claimed in claim 7, it is characterised in that also include：Time-domain received signal intensity is indicated Calculator, is connected with second data selector and the measuring appliance respectively, for being indicated based on described Signal, calculates the received signal strength indicator of the indication signal in the time domain.

9. device as claimed in claim 8, it is characterised in that the measuring appliance, also with the signal transacting Device is connected, and obtains the Reference Signal Received Power of a candidate signal in the multiple candidate signal；To institute The received signal strength indicator for stating indication signal is modified；And, according to one candidate signal The received signal strength indicator of Reference Signal Received Power and the indication signal of the amendment, obtains the ginseng Examine signal receiving quality.

10. device as claimed in claim 5, it is characterised in that the measured signal also includes indication signal, At least one described data selector also includes the second data selector, in the multiple candidate signal It is middle to choose the indication signal.

11. device as claimed in claim 10, it is characterised in that also include：Time-domain received signal intensity is indicated Calculator, is connected with second data selector and the measuring appliance respectively, for being indicated based on described Signal, calculates the received signal strength indicator of the indication signal in the time domain.

12. device as claimed in claim 11, it is characterised in that the measuring appliance obtains the echo signal Reference Signal Received Power；The received signal strength indicator of the indication signal is modified；And, It is strong according to the reception signal of the Reference Signal Received Power of the echo signal and the indication signal of the amendment Degree is indicated, obtains the Reference Signal Received Quality.

13. the device as described in claim 8 or 12, it is characterised in that the measuring appliance according to correction factor, The received signal strength indicator of the indication signal is modified, wherein, the correction factor with it is quick The size of Fourier transformation or the number of null subcarrier are relevant.

14. a kind of method for obtaining Reference Signal Received Quality, it is characterised in that including：

The reception signal of cell is obtained, wherein, the reception signal includes at least one reference signal；

The reception signal is handled, to obtain multiple candidate signals, wherein, the multiple candidate signal tool There are different bandwidth；

At least one measured signal is chosen from the multiple candidate signal；And

Based at least one described measured signal, Reference Signal Received Quality is obtained.

15. method as claimed in claim 14, it is characterised in that also include：According to communication standard, analysis is obtained The Reference Signal Received Quality taken；If the Reference Signal Received Quality is less than the communication standard In a corresponding threshold value, obtained from the multiple candidate signal than at least one described measured signal band Roomy candidate signal is to update the measured signal；And, based on the measured signal of the renewal, obtain Take the Reference Signal Received Quality of renewal.

16. method as claimed in claim 14, it is characterised in that also include：According to communication standard, analysis is obtained The Reference Signal Received Quality taken；If the Reference Signal Received Quality is more than the communication standard In a corresponding threshold value, obtained from the multiple candidate signal than at least one described measured signal band Wide small candidate signal is to update the measured signal；And, based on the measured signal of the renewal, obtain Take the Reference Signal Received Quality of renewal.

17. method as claimed in claim 14, it is characterised in that the processing reception signal includes connecing to described The collection of letters number carries out LPF and 2 times of down-samplings processing, so as to obtain with the multiple of different bandwidth Candidate signal.

18. method as claimed in claim 14, it is characterised in that the measured signal includes echo signal, from At least one measured signal is chosen in the multiple candidate signal to be included choosing from the multiple candidate signal The echo signal.

19. method as claimed in claim 18, it is characterised in that the bandwidth of the echo signal includes 1.4MHz, 3MHz or 5MHz.

20. method as claimed in claim 18, it is characterised in that obtaining Reference Signal Received Quality includes obtaining The received signal strength indicator of the Reference Signal Received Power of the echo signal and the echo signal, from And obtain the Reference Signal Received Quality.

21. method as claimed in claim 14, it is characterised in that the measured signal includes indication signal, from At least one measured signal is chosen in the multiple candidate signal to be included choosing from the multiple candidate signal The indication signal.

22. method as claimed in claim 21, it is characterised in that also include：Based on the indication signal, The received signal strength indicator of the indication signal is calculated in time-domain.

23. method as claimed in claim 22, it is characterised in that obtaining Reference Signal Received Quality includes：Obtain Take the Reference Signal Received Power of a candidate signal in the multiple candidate；The indication signal is connect Signal intensity is received to indicate to be modified；And, work(is received according to the reference signal of one candidate signal The received signal strength indicator of rate and the indication signal of the amendment, obtains the Reference Signal Received Quality.

24. the method as described in claim 18 or 19, it is characterised in that the measured signal also includes indicating Signal, at least one measured signal is chosen from the multiple candidate signal also to be included from the multiple candidate The indication signal is chosen in signal.

25. method as claimed in claim 24, it is characterised in that also include：Based on the indication signal, The received signal strength indicator of the indication signal is calculated in time-domain.

26. method as claimed in claim 25, it is characterised in that obtaining Reference Signal Received Quality includes：Obtain Take the Reference Signal Received Power of the echo signal；To the received signal strength indicator of the indication signal It is modified；And, according to the Reference Signal Received Power of the echo signal and the instruction of the amendment The received signal strength indicator of signal, obtains the Reference Signal Received Quality.

27. the method as described in claim 22 or 25, it is characterised in that calculate the instruction in the time domain The received signal strength indicator of signal includes：According to communication standard, the indication signal of acquisition is analyzed Received signal strength indicator；If the received signal strength indicator of the indication signal is more than the communication mark A corresponding threshold value in standard, obtains smaller than the indication signal bandwidth from the multiple candidate signal Candidate signal is to update the indication signal；And, based on the indication signal of the renewal, in time-domain It is middle to calculate the received signal strength indicator updated.

28. the method as described in claim 22 or 25, it is characterised in that calculate the instruction in the time domain The received signal strength indicator of signal includes：According to communication standard, the indication signal of acquisition is analyzed Received signal strength indicator；If the received signal strength indicator of the indication signal is less than the communication mark A corresponding threshold value in standard, obtains more roomy than the indication signal band from the multiple candidate signal Candidate signal is to update the indication signal；And, based on the indication signal of the renewal, in time-domain It is middle to calculate the received signal strength indicator updated.

29. the method as described in claim 23 or 26, it is characterised in that the reception to the indication signal is believed Number intensity indicates to be modified including according to correction factor, to the received signal strength of the indication signal Instruction is modified, wherein, the size or null subcarrier of the correction factor and Fast Fourier Transform (FFT) Number is relevant.

30. method as claimed in claim 26, it is characterised in that the reference signal for obtaining the echo signal connects Receiving power includes：According to communication standard, the Reference Signal Received Power of the echo signal obtained is analyzed； If the Reference Signal Received Power of the echo signal is more than a corresponding threshold in the communication standard Value, obtains the candidate signal smaller than the echo signal bandwidth to update from the multiple candidate signal State echo signal；And, based on the echo signal of the renewal, obtain the reference signal updated and receive work( Rate.

31. method as claimed in claim 26, it is characterised in that the reference signal for obtaining the echo signal connects Receiving power includes：According to communication standard, the Reference Signal Received Power of the echo signal obtained is analyzed； If the Reference Signal Received Power of the echo signal is less than one threshold of correspondence in the communication standard Value, obtains the candidate signal more roomy than the echo signal band to update from the multiple candidate signal State echo signal；And, based on the echo signal of the renewal, obtain the reference signal updated and receive work( Rate.

32. method as claimed in claim 14, it is characterised in that the different bandwidth include 1.4MHz, 3MHz, 5MHz, 10MHz or 20MHz.