CN101253714A - SIR testing device and wireless communication device - Google Patents

Abstract

A SIR determining apparatus and a wireless communication apparatus wherein the value of signal component-to-interference component ratio (SIR), which is indicative of the power ratio of the signal components of a radio signal to the interference components thereof, can be precisely determined. A determination of SIR is performed. Then, based on the noise figure (NF) of a radio processing part (4) that performs an analog signal processing of a radio signal in the radio frequency (RF) range, the value of a power (N), which is added to the radio signal by the internal noise of the radio processing part, is determined. Then, based on a received signal strength indicator (RSSI) indicative of the reception strength of the radio signal, the value of the power (I) of interference components included in the radio signal is determined.; Then, a correction amount, which is based on both the power (N) of the internal noise and the power (I) of the interference components, is calculated for the determined SIR value, thereby performing a correction for removing the power (N) of the internal noise included in the SIR.

Description

SIR checkout gear and radio communication device

Technical field

The present invention relates to a kind of radio communication device that in the wireless base station of executive communication relayings such as portable phone or wireless set etc., is provided with, especially relate to the signal component that can detect accurately in the radio communication the SIR checkout gear and the radio communication device of interference components than (SIR:Signal to Interference Ratio).

Background technology

The radio communication device that is arranged in the wireless base station has usually: the antenna that becomes the transmitting-receiving mouth of wireless signal; Transceiver is carried out the analog in RF (Radio Frequency) zone of wireless signal by antenna secondary; With Base-Band Processing portion, carry out the signal processing (numeral or analog) in the baseband region of wireless signal by transceiver secondary.

Carry out therein in the transceiver of the analog in the RF zone, the wireless processing section that comprises variable gain amplifier or attenuator etc. is set.With regard to the structure of wireless processing section, in following patent documentation 1 or 2, describe in detail.

This wireless processing section is made of various electric components such as transistors.Usually, because electric component produces noise,, can worsen so the SN of the wireless signal by wireless processing section diminishes greatly than (Signal to Noise Ratio) change., have and represent that wireless processing section produces the NF (Niose Figure) times over the internal noise of input thermal noise equivalently than the parameter that worsens as this SN of expression.

And,, have CDMA (Code Division MultipleAccess) mode as a kind of mode of mobile communicating.The CDMA mode is used the code of distributing to each user separately, discerns each subscriber signal.Therefore, if each code does not interact fully, then each each user's signal can be fully not by other effect of signals be back to original signal., in the transmission path of reality, because there is interactive component in various factors to each other at each code, since this amount of influence, open ended number of users in the restriction system.The interactive to each other component of this code in transmission path is called interference components.

In the Base-Band Processing portion in radio communication device, the signal component of being represented wireless signal by the SIR checkout gear and the signal component of the power ratio of interference components are to the detection of interference components than (SIR:Signal toInterference Ratio).When detecting this SIR,, use RSSI (the Received Signal StrengthIndicator) information of expression by the receiving intensity of the wireless signal of transceiver generation for the value of certain interference component., in this RSSI value, not only comprise interference components, also comprise the influence of the NF that wireless processing section has.Therefore, can not detect sir value closely.

In addition, in the CDMA mode, (pilot bit) infers SIR by the demodulation pilot frequency position, but produces error because of the pilot tone figure place of demodulation is different in the presumed value of SIR.Therefore, can not detect sir value closely.

Patent documentation 1: the spy opens the 2000-183762 communique

Patent documentation 2: the spy opens the 2000-216652 communique

Summary of the invention

The objective of the invention is to address the above problem, realization can detect the SIR checkout gear and the radio communication device of sir value closely.

SIR checkout gear of the present invention and radio communication device are characterised in that: the signal component that detects the expression wireless signal with the signal component of the power ratio of interference components to interference components than (SIR:Signal toInterference Ratio), NF (Noise Figure) according to the wireless processing section (4) of described wireless signal being carried out the analog in RF (Radio Frequency) zone, the internal noise of specific described wireless processing section puts on the value of the power N on the described wireless signal, RSSI (Received Signal Strength Indicator) according to the receiving intensity of representing described wireless signal, the value of the power I of the interference components that comprises in the specific described wireless signal, by to the 1st revisal amount of detected described sir value computing according to the power I of the power N of described internal noise and described interference components, the 1st revisal of removing the power N of the described internal noise that comprises among the described SIR.

The invention effect

According to the present invention, by detected sir value computing is put on the 1st revisal amount of the power I of the power N of the internal noise on the wireless signal and interference components, the 1st revisal of removing the power N of the internal noise that comprises among the SIR according to wireless processing section.Therefore, can realize obtaining not having The noise within the wireless processing section SIR, can detect the SIR checkout gear and the radio communication device of sir value closely.

Purpose of the present invention, feature, aspect and advantage become clearer by following detailed description and accompanying drawing.

Description of drawings

Fig. 1 is the figure of the internal noise (thermal noise) of explanation wireless processing section generation to the influence of SIR detection.

Fig. 2 is the internal noise (thermal noise) of explanation wireless processing section generation another figure to the influence of SIR detection.

Fig. 3 is the structure chart of expression as the radio base station apparatus of the radio communication device of execution mode 1.

Fig. 4 is the figure of the revisal scale lattice in the expression SIR checkout gear.

Fig. 5 is the polar plot that the pilot bit signal counter diffusion calculated result in the CDMA mode is carried out in expression.

Fig. 6 is the structure chart of the uplink control signal of W-CDMA.

The figure of Fig. 7 table that to be expression conclude the various index in the time slot format and its structure number.

Fig. 8 is the tabular drawing that the operation result of the revisal amount in the SIR checkout gear has been used in the expression storage.

Fig. 9 is the structure chart of expression as the radio base station apparatus of the radio communication device of execution mode 3.

But Figure 10 is expression storage to the tabular drawing of each each revisal amount of calculating of the division of the value of each of a plurality of wireless processing section in the SIR checkout gear and interference components power I.

Figure 11 is that expression is used for the unified tabular drawing that carries out the 1st and the 2nd revisal.

Symbol description

1, antenna

2, transceiver

3, Base-Band Processing portion

4,41～4n, wireless processing section

5, Base-Band Processing-wireless Processing Interface

6, digital modulation portion

7,7a, digital demodulation portion

71,72, SIR checkout gear

8, channel coding/decoding portion

9, wired handling part

10, radio base station apparatus

11, NF test section

12,14, interface

13, RSSI determination part

Embodiment

(execution mode 1)

Present embodiment is a kind of SIR checkout gear and radio communication device, by detected sir value computing is put on the revisal amount of the power I of the power N of the internal noise on the wireless signal and interference components, the revisal of removing the power N of the internal noise that comprises among the SIR according to wireless processing section.

At first, with Fig. 1 the influence that the internal noise (thermal noise) of wireless processing section generation detects SIR is described.In Fig. 1, illustrate as the component that influences wireless signal, the interference components in the transmission path exists hardly, and only the vector A1 of the thermal noise on the transmission path (Thermal Noise) becomes the perfect condition of the fundamental component that influences wireless signal.

In Fig. 1, as an example, suppose that the value of the vector A1 of thermal noise is-108dBm, and, suppose that the NF component N1 of the wireless processing section of the radio communication device inside that is arranged in the wireless base station is+4dB.

Target SIR value T1 at the epigyny device of (Received Signal) to received signal is+and during 10dB, as received signal A2, ideal is-and 108dBm adds+10dB-98dBm.Since the NF component N1 of wireless processing section+4dB can not ignore, so in fact only obtain target SIR value T1 and NF component N1 difference (=+ 6dB), be gain G 1.

Like this, as the component that influences wireless signal, the interference components in transmission path is little value, and when only the thermal noise on the transmission path became the fundamental component that influences wireless signal, the influence of the NF of wireless processing section can not be ignored when SIR detected, and the gain of SIR worsens.

Below, the internal noise (thermal noise) that the wireless processing section of explanation shown in Fig. 2 produces is to another example of the influence of SIR detection.Shown in Figure 2 as the component that influences wireless signal, the vector A1 of the thermal noise on transmission path (Thermal Noise), also there is the situation of the interference components I1 in the transmission path of a plurality of terminals.

In Fig. 2, as an example, suppose that the value of the vector A1 of thermal noise is-108dBm, suppose from the value of the vector I1 of the interference components of a plurality of terminals to be-85dBm.And, identical with the situation of Fig. 1, suppose that the NF component N1 of the wireless processing section of the radio communication device inside that is arranged in the wireless base station is+4dB.

Here, if consider thermal noise (vector A1) and NF (component N1) vector and, then its value is-108dBm+4dB=-104dbm.And, if consider this thermal noise and NF vector and and with from the vector of the vector I1 of the interference components of a plurality of terminals and, then its value is such shown in vector A3, is approximately-85dBm.This be because because-85dBm=3.16228 * 10 ^-9MW ,-104dBm=1.58489 * 10 ^-11So mW is 3.16228 * 10 ^-9MW+1.58489 * 10 ^-11The operation result of mW approximately can be approximately 3.16228 * 10 ^-9MW, promptly-85dBm.

At this moment, at the target SIR value T1 of the epigyny device of (Received Signal) be+during 10dBm to received signal, as received signal A4, for-85dBm add+10dB-75dBm.At this moment and since can ignore wireless processing section NF component N1+4dB, so obtain the value roughly the same with target SIR value T1 (=+ 10dB) gain G 2.

That is, when the value of the interference components of a plurality of terminals is high, the influence of the NF of the wireless processing section that comprises among the SIR can be ignored, but when the value of interference components is low, must remove the revisal of influence of the NF of the wireless processing section that comprises among the SIR.

Fig. 3 is the structure chart of expression as the radio base station apparatus 10 of the radio communication device of present embodiment.This radio base station apparatus 10 is the base station apparatus that carry out the communicating wireless signals of CDMA (Code Division Multiple Access) mode, has: the antenna 1 that becomes wireless signal transmitting-receiving mouth; Transceiver 2 is carried out the analog in RF (Radio Frequency) zone of wireless signal by antenna secondary; With Base-Band Processing portion 3, carry out the signal processing (corresponding to the Digital Signal Processing of CDMA mode) in the baseband region of wireless signal by transceiver 2 secondary.

The transceiver 2 that wherein carries out the analog in the RF zone has: the wireless processing section 4 that comprises variable gain amplifier or attenuator etc.; With comprise AD (Analog to Digital) transducer or DA (Digital to Analog) transducer etc., the Base-Band Processing of the interface of using as the wireless signal in exchange RF zone between Base-Band Processing portion 3 and wireless processing section 4-wireless Processing Interface portion 5.

Wireless processing section 4 is owing to being made of various electric components such as transistors, so produce internal noise.And wireless processing section 4 has the NF test section 11 that detects as the NF (Noise Figure) of the index of representing its internal noise.On NF test section 11, connect the interface 12 that can send NF information.

And Base-Band Processing-wireless Processing Interface portion 5 has RSSI (the Received Signal Strength Indicator: RSSI determination part 13 indication of received signal intensity) that measures expression wireless signal receiving intensity in its part.Connect the interface 14 that can send RSSI information on the RSSI determination part 13.

In addition, the Base-Band Processing portion 3 that carries out the signal processing in the baseband region has digital modulation portion 6, digital demodulation portion 7, channel coding/decoding portion 8, wired handling part 9.When sending wireless signal, wired handling part 9 sends wired processing such as format of signal, and channel coding/decoding portion 8 sends the coding of signal.And the transmission signal behind digital modulation portion 6 modulating-codings is sent to transceiver 2.And, when receiving wireless signal, digital modulation portion 7 demodulated received signals, channel encode-decode portion 8 carries out the decoding of received signal.And, carry out wired processing such as form explanation of received signal by wired handling part 9.

And in the present embodiment, digital demodulation portion 7 comprises the SIR checkout gear 71 of the SIR of detected wireless signals.In addition, wireless processing section 4 is arranged in the radio base station apparatus 10, when radio base station apparatus 10 initial start-ups, as a ring of the starting sequence of radio base station apparatus 10, SIR checkout gear 71 carries out obtaining the action of the NF information the wireless processing section 4 from NF test section 11 through interface.And SIR checkout gear 7 is according to NF information, and the internal noise of specific wireless handling part 4 puts on the value of the power N on the wireless signal, the value of this power of storage N in being arranged at its inner storage part (being made of memory or register) 71a.

SIR checkout gear 71 also handles in the reception that radio base station apparatus 10 carries out wireless signal, when RSSI determination part 13 is measured the RSSI of received signals, carry out the action of the RSSI information that obtains determining from RSSI determination part 13 through interface 14.And SIR checkout gear 71 uses the power of wireless signal and RSSI information to carry out the SIR detection.And, SIR checkout gear 7 after the SIR that carries out wireless signal detects, according to NF information and RSSI information, the detected SIR of revisal.

When the SIR in SIR checkout gear 71 detects,, calculate the power I of the interference components that comprises in the wireless signal according to RSSI information., owing to be determined as RSSI=I (power of interference components)+N (internal noise of wireless processing section 4 puts on the power on the wireless signal), comprise the NF influence of wireless processing section 4 among the SIR that in SIR checkout gear 71, calculates.Here, this SIR that comprises the NF influence of wireless processing section 4 is defined as SINR (Signal to Interference and Noise Ratio).In addition, the detection regulation point of SIR is the input of antenna 1, but the detection of SINR regulation point is the input of digital demodulation portion 7.

If consider to have used the explanation of above-mentioned Fig. 1 and Fig. 2, then at the high position of the power I of interference components,, the NF of wireless processing section 4 can ignore, so RSSI=I sets up SIR=SINR because influencing.In addition, at the low position of the power I of interference components, because the NF of wireless processing section 4 influence can not be ignored, so RSSI=I is false, SIR can be different values with SINR.

Make this situation that is formulated.At first, SIR is represented by following formula (1).

[formula 1]

SIR＝S/I (1)

Here, S is the power of signal component, and I is the power of interference components.And SIR is represented by following formula (2).

[formula 2]

SINR＝S/(I+N) (2)

Here, N is that the internal noise of wireless processing section 4 puts on the power on the wireless signal.

Utilize formula (1) and formula (2), the relation of SIR and SINR is showed by following formula (3).

[formula 3]

SIR＝SIN×(I+N)/I (3)

If convert above-mentioned formula (3) to logarithm, then show by following formula (4).

[formula 4]

SIR＝SINR+10×log(I+N)-10×logI (4)

From formula 4 as can be known, from the change type of SINR to SIR be the function of power N of the internal noise component of the power I of interference components and wireless processing section 4.And this conversion amount is the value for 10 * log (I+N)-10 * logI.Promptly, when detecting SINR, can by this detected SINR value is deducted according to the power I of the power N of internal noise and interference components be the revisal amount of 10 * log (I+N)-10 * logI, remove the revisal of the power N of the internal noise that comprises among the SINR.

Therefore, in the present invention, the SIR checkout gear 71 in the digital demodulation portion 7 is according to formula (4), and the value of the power N of the value of the power I of use interference components and the internal noise component of wireless processing section 4 is carried out the revisal from SINR to SIR.

More particularly, SIR checkout gear 71 is obtained NF information in advance from wireless processing section 4 when radio base station apparatus 10 initial start-ups, the value of the power N of specific internal noise, the value of this power of storage N in storage part 71a.And, but the value scope division of the power I of interference components is become a plurality of, according to the value of the power N of each typical value of this division and internal noise, each is divided the revisal amount of calculating in advance to above-mentioned 10 * log (I+N)-10 * logI.And, each revisal amount of calculating is stored in the form that is arranged among the storage part 71a.

Fig. 4 is the figure of this form 15 of expression.At first, in form 15, but the scope of the power I value of interference components from deficiency-108.0dBm (index 0) ,-the above deficiency-107.9dBm of 108.0dBm (index 1) ,-the above deficiency-107.8dBm of 107.9dBm (index 2) ... above deficiency-the 85.0dBm of ,-85.1dBm (index 229), to-85.0dBm above (index 230), divide with the 0.1dBm scale.And, each division is calculated revisal amount into above-mentioned 10 * log (I+N)-10 * logI as a0～a230[dB], each the revisal amount a0～a230 that calculates is stored in the form 15.

According to the value of the power N of each typical value of dividing and internal noise, each revisal amount a0～a230 is calculated in each division.In the typical value of dividing, if get-the above deficiency-107.9dBm of 108.0dBm (index 1) be divided into example, then both can adopt as median-107.95dBm, perhaps, also can adopt and divide interior minimum value-108.0dBm or maximum-107.9dBm.And, with regard to the power N of internal noise, as long as the vector component of the NF shown in use Fig. 1 and Fig. 2 (+4dB).

SIR checkout gear 71 is from the revisal of SINR to SIR the time, and the limit is with reference to the power I of the interference components of calculating according to RSSI, and one of revisal amount a0～a230 corresponding to the value of the power I of interference components is read on the limit from form 15.And, according to formula (4),, proceed to the revisal of SIR by deducting the revisal amount of reading from SINR.

For example, in the RSSI value that obtains from RSSI determination part 13 (the power I that is equivalent to interference components) during for-91.0dBm, the index 171 of the form 15 that SIR checkout gear 71 reference-91.0dBm are affiliated.According to form 15, the revisal amount is a171[dB], only deducted revisal amount a171[dB so SIR checkout gear 71 is calculated from detected SINR] value as SIR.

SIR checkout gear and radio communication device according to present embodiment, by the value computing of detected SINR is put on revisal amount a0～a230 of the power I of the power N of the internal noise on the wireless signal and interference components, the revisal of removing the power N of the internal noise that comprises among the SINR according to wireless processing section 4.Therefore, obtain not having the SIR of the internal noise influence of wireless processing section 4, can realize to detect closely the SIR checkout gear and the radio communication device of sir value.

And, SIR checkout gear according to present embodiment, but the value scope division of the power I of interference components is become a plurality of, value according to the power N of each typical value of dividing and internal noise, revisal amount a0～a230 is calculated in each division in advance, each the revisal amount a0～a230 that calculates is stored in the form 15, when revisal, reads revisal amount a0～a230 corresponding to the value of the power I of interference components from form 15.Therefore, owing to when carrying out revisal, needn't all calculate the revisal amount at every turn, as long as read revisal amount a0～a230, so revisal rapidly from form 15.

The NF that the present invention is especially different in the company of company that makes wireless processing section 4 and manufacturing Base-Band Processing portion 3, do not provide wireless processing section 4 to Base-Band Processing portion 3 is effective during as initial information.

The performance of wireless processing section 4 has nothing in common with each other because of manufacturing company or product class differences such as (line up), and corresponding to this, the NF value of wireless processing section 4 also has nothing in common with each other.When radio base station apparatus 10 initial start-ups, owing in Base-Band Processing portion 3, carry out the equipment adjustment, so must carry out SIR detects, but according to SIR checkout gear of the present invention and radio communication device, SIR checkout gear 71 detects the value of SIR closely by according to the NF information that is arranged on the wireless processing section 4 in the radio base station apparatus 10, is not subjected to restrictions such as manufacturing company or product class, the device of wireless processing section 4 or Base-Band Processing portion 3 is freely made up, can realize radio base station apparatus 10.This situation makes the present invention effective.In addition, when the replacing of wireless processing section 4, exchange, also carry out revisal, so the present invention is effective from SINR to SIR.

In addition, in SIR checkout gear 71, as long as can select whether to carry out above-mentioned revisal from SINR to SIR.This is because as shown in Figure 1, when the value of interference components is low, must remove the revisal of influence of the NF of the wireless processing section that comprises among the SIR, but in addition, as shown in Figure 2, when the value of interference components was high, the influence of the NF of the wireless processing section that comprises among the SIR can be ignored.

And, by can selecting whether to carry out revisal, when selecting not carry out revisal, be subjected at SIR under the rough sledding of internal noise influence of wireless processing section 4, can carry out the performance evaluation that Base-Band Processing portion 3 waits other communication process portions, also can improve the reliability of performance evaluation.

(execution mode 2)

Present embodiment is the SIR checkout gear of execution mode 1 and the variation of radio communication device, by the 1st identical revisal of the execution mode that detected SINR carried out and be transformed to SIR 1, and computing is according to the revisal amount of the pilot tone figure place in the CDMA mode, dwindles the 2nd revisal of following the error that SIR infers.

In addition, the SIR checkout gear of present embodiment and the structure of radio communication device are identical with the structure of execution mode 1, and only the revisal of the SIR checkout gear 71 among Fig. 2 is handled different.

Fig. 5 represents to carry out the vector of the counter diffusion calculated result of the pilot bit signal in the CDMA mode.In addition, in Fig. 5, as an example, the expression pilot bit is 3 a situation.

And Fig. 6 is the structure chart of the uplink control signal (DPCCH) 23 of W-CDMA (Wideband-CDMA), and Fig. 7 is to being called time slot format (Slot Format), determining the various index of signal structure and the table that its formation number is concluded.In addition, TFCI23b in the control signal 23 of Fig. 6 refers to Transport FormatCombination Indicator (transformat combination indication), FBI23c refers to FeedBack Information (feedback information), and TPC23d refers to Transfer Power Control (transfer power control).

As shown in Figure 7,12 kinds of the index of time slot format existence 0～5B.And, because of each time slot format difference, pilot tone figure place difference, but the value of pilot tone figure place is 3～8 scope.Increase by the pilot tone figure place, the error of the restituted signal of inferring based on pilot tone diminishes.

Vector 16,17,18 among Fig. 5 is respectively the counter diffusion vector R_SIG (i) (i=0,1,2) of pilot bit signal SIG (i) (i=0,1,2), and vector 19 is ideal points of restituted signal.Vector 20,21,22 is the interference components of each pilot bit signal, is expressed as INTER (i) (i=0,1,2).Because restituted signal power (power of vector 19) SIG_POW is the counter diffusion result's of each pilot bit signal a mean value, so obtain like that as shown in the formula (5).

[formula 5]

$\mathrm{SIG}\_\mathrm{POW}={\left|\frac{\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}R\_\mathrm{SIG}\left(i\right)}{N\_\mathrm{PILOT}}\right|}^2={\left|\frac{\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}(\mathrm{SIG}\left(i\right)+\mathrm{INTER}\left(i\right))}{N\_\mathrm{PILOT}}\right|}^2$

$=\frac{{\left|\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}\mathrm{SIG}\left(i\right)\right|}^2+2\×\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}\mathrm{SIG}\left(i\right)\×\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}\mathrm{INTER}\left(i\right)+{\left|\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\Σ}}}\mathrm{INTER}\left(i\right)\right|}^2}{{N\_\mathrm{PILOT}}^2}---\left(5\right)$

Here, N_PILOT instructs figure place frequently.INTER (i) represents Gaussian Profile, and it is distributed as

Doubly.In addition owing to consider that signal component SIG (i) is a steady state value, so when be considered as mean value, during (the i)=SIG_AVE that is made as SIG, for

[formula 6]

$\mathrm{SIG}\_\mathrm{POW}=\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\frac{2\&times;N\_\mathrm{PILOT}\&times;\mathrm{SIG}\_\mathrm{AVE}\&times;\mathrm{INTER}\_\mathrm{AVE}}{\sqrt{N\_\mathrm{PILOT}}}$

$+\frac{\mathrm{INTER}\_{\mathrm{AVE}}^2}{N\_\mathrm{PILOT}}---\left(6\right)$

In addition, INTER_AVE is the mean value of interference components INTER (i).Here, mean value INTER_AVE is that the value corresponding to the mean value of N_PILOT is inferred on long period ground, because its value is 0, institute thinks

[formula 7]

$\frac{2\&times;N\_\mathrm{PILOT}\&times;\mathrm{SIG}\_\mathrm{AVE}\&times;\mathrm{INTER}\_\mathrm{AVE}}{\sqrt{N\_\mathrm{PILOT}}}=0---\left(7\right)$

Therefore, formula (6) becomes

[formula 8]

$\mathrm{SIG}\_\mathrm{POW}=\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\frac{\mathrm{INTER}\_{\mathrm{AVE}}^2}{N\_\mathrm{PILOT}}---\left(8\right)$

Signal component is increased (INTER_AVE more ²/ N_PILOT) item.

Below, the performance number INT_POW of interference components is calculated in consideration.Can obtain performance number INT_POW as the counter diffusion dispersion of R_SIG (i) (i=0,1,2) as a result.Therefore, obtain like that as shown in the formula (9).

[formula 9]

$\mathrm{INT}\_\mathrm{POW}=\frac{N\_\mathrm{PILOT}\&times;\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\&Sigma;}}}{\left|\mathrm{SIG}\left(i\right)\right|}^2-{\left|\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\&Sigma;}}}\mathrm{SIG}\left(i\right)\right|}^2}{{N\_\mathrm{PILOT}}^2}---\left(9\right)$

Here, derive from formula (5) and formula (8)

[formula 10]

${\left|\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\&Sigma;}}}\mathrm{SIG}\left(i\right)\right|}^2=N\_{\mathrm{<figure-callout\; id="2"\; label="PILOT"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">PILOT</figure-callout>}}^2\&times;\{\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\frac{\mathrm{INTER}\_{\mathrm{AVE}}^2}{N\_\mathrm{PILOT}}\}---\left(10\right)$

。And, because being long period ground, mean value INTER_AVE infers value corresponding to the mean value of N_PILOT, be 0, so the performance number INT_POW of interference components is

[formula 11]

$\underset{i=0}{\overset{N\_\mathrm{PILOT}-1}{\mathrm{\&Sigma;}}}{\left|\mathrm{SIG}\left(i\right)\right|}^2=N\_\mathrm{PILOT}(\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+2\&times;\mathrm{SIG}\_\mathrm{AVE}\&times;\mathrm{INTER}\_\mathrm{AVE}+\mathrm{INTER}\_{\mathrm{AVE}}^2)$

$=N\_\mathrm{PILOT}(\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\mathrm{INTER}\_{\mathrm{AVE}}^2)---\left(11\right)$

Here, if, then become with formula (10) and (11) substitution formula (9)

[formula 12]

$\mathrm{INT}\_\mathrm{POW}=\frac{N\_\mathrm{PILO}{T}^2(\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\mathrm{INTER}\_{\mathrm{AVE}}^2)-N\_\mathrm{<figure-callout\; id="2"\; label="PILO\; T"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">PILO</figure-callout>}{T}^{}{}^2\&times;\{\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2+\frac{\mathrm{INTER}\_{\mathrm{AVE}}^2}{N\_\mathrm{PILOT}}\}}{N\_{\mathrm{<figure-callout\; id="2"\; label="PILOT"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">PILOT</figure-callout>}}^2}$

$=\frac{N\_\mathrm{PILOT}-1}{N\_\mathrm{PILOT}}\&times;\mathrm{INTER}\_{\mathrm{AVE}}^2---\left(12\right)$

, become on duty with the (value of (N_PILOT-1)/N_PILOT) to what obtain.

Below, calculate SIR.If following formula (13) is then derived in use formula (9) and (12).

[formula 13]

$\mathrm{SIR}=\frac{\mathrm{SIG}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2}{\mathrm{INT}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2}=\frac{\mathrm{SIG}\_\mathrm{POW}-\frac{\mathrm{INTER}\_{\mathrm{AVE}}^2}{N\_\mathrm{PILOT}}}{\mathrm{INT}\_{\mathrm{<figure-callout\; id="2"\; label="AVE"\; filenames="S2005800511896E00021.png,S2005800511896E00031.png"\; state="\{\{state\}\}">AVE</figure-callout>}}^2}$

$=\frac{\mathrm{SIG}\_\mathrm{POW}}{\mathrm{INT}\_{\mathrm{AVE}}^2}-\frac{1}{N\_\mathrm{PILOT}}$

$=\frac{\mathrm{SIG}\_\mathrm{POW}}{\frac{N\_\mathrm{PILOT}}{N\_\mathrm{PILOT}-1}\&times;\mathrm{INT}\_\mathrm{POW}}-\frac{1}{N\_\mathrm{PILOT}}$

$=\frac{N\_\mathrm{PILOT}-1}{N\_\mathrm{PILOT}}\&times;\frac{\mathrm{SIG}\_\mathrm{POW}}{\mathrm{INT}\_\mathrm{POW}}-\frac{1}{N\_\mathrm{PILOT}}---\left(13\right)$

Like this, the presumed value of SIR shows as parameter with the figure place of the pilot tone when N_PILOT of the performance number INT_POW of restituted signal power (vector 19) SIG_POW and interference components.In addition, above-mentioned formula (13) is the formula under the 1 time slot unit.Formula under the 2 time slot units is following formula (14).

[formula 14]

$\mathrm{SIR}=\frac{N\_\mathrm{PILOT}-1}{N\_\mathrm{PILOT}}\&times;\frac{\mathrm{SIG}\_\mathrm{POW}}{\mathrm{INT}\_\mathrm{POW}}-\frac{1}{2\&times;N\_\mathrm{PILOT}}---\left(14\right)$

From formula (13) or formula (14) as can be known, the error correction amount during SIR infers is the function of pilot tone figure place N_PILOT.

In the SIR of present embodiment checkout gear 71, by to detected SINR, the 1st revisal that the execution mode that carries out and be transformed to SIR according to formula (4) 1 is identical, afterwards, also according to formula (13) or formula (14), computing (comprises N_PILOT (each component of (N_PILOT-1)/N_PILOT) and 1/N_PILOT) as structural element, dwindles the 2nd revisal of following the error that SIR infers based on the revisal amount of the pilot tone figure place in the CDMA mode.

Promptly, the SIR checkout gear 71 of present embodiment utilizes the specific pilot tone figure place N_PILOT information of restituted signal according to digital demodulation portion 7, carry out the 2nd revisal, promptly multiply by also to having carried out the sir value of the 1st revisal of removing the NF influence of wireless processing section 4 from SIN that ((N_PILOT-1)/N_PILOT) deducts the 1/N_PILOT (situation of 1 time slot unit afterwards.If the situation of 2 time slot units then deducts 1/ (2 * N_PILOT)).

In the 2nd revisal, because ((N_PILOT-1)/N_PILOT) and 1/N_PILOT (or the value of 1/ (2 * N_PILOT)) variation of all kinds corresponding to the pilot tone figure place, so in the present embodiment, but the value scope division that will carry out the SIR of the 1st revisal becomes a plurality of, according to pilot tone figure place N_PILOT, each pilot tone figure place is calculated the revisal amount in advance.And each the revisal amount to each typical value computing of dividing is calculated is stored in each operation result in the form that is arranged among the storage part 71a.

Fig. 8 is the figure of this form 24 of expression.At first, in form 24, but carry out the 1st revisal the SIR value scope from-11.1dB (index 0) ,-11.0dB (index 1) ,-10.9dB (index 2) ..., to+20.0dB (index 311), divide with the 0.1dB scale.In the sir value that carries out the 1st revisal, exist under the situation of the part of decimal point below the 2nd,, go into or give up, as long as sir value is in the division of arbitrary index for example by rounding up.In the typical value of dividing, as long as the value that adopts each index is (for example, if be index 1 then be-11.0dB).And the value of deficiency-11.1dB is considered as-11.1dB, than+value that 20.0dB is big be considered as+20.0dB gets final product.

And, to each pilot tone figure place N_PILOT (here, suppose that the pilot tone figure place gets one of 3～8) calculate and be above-mentioned ((N_PILOT-1)/N_PILOT) and 1/N_PILOT (or the revisal amount of 1/ (2 * N_PILOT)), according to formula (13) or formula (14), to its value of calculating respectively of each typical value computing of dividing, with each operation result as a03～a08[dB], a13～a18[dB] ..., a3113～a3118[dB] be stored in the form 24.

For example, is 4 o'clock at the sir value that carries out the 1st revisal for+4.5dB, pilot tone figure place, according to the information of the index 156 of form 24 and the information of pilot tone figure place 4, read the operation result a1564[dB that the typical value+4.5dB computing to index 156 obtains corresponding to the revisal amount of pilot tone figure place 4 by SIR checkout gear 71] information, as the operation result of the 2nd revisal.This value of reading becomes detected SIR.

SIR checkout gear and radio communication device according to present embodiment, by detected SINR being transformed to the 1st revisal of SIR, and computing is based on the 2nd revisal amount of the pilot tone figure place in the CDMA mode, dwindles the 2nd revisal of following the error that SIR infers.Therefore, in the CDMA mode, can realize to detect more closely the SIR checkout gear of sir value.

And, SIR checkout gear and radio communication device according to present embodiment, but the value scope division that will carry out the SIR of the 1st revisal becomes a plurality of, according to the pilot tone figure place, to each pilot tone figure place calculate in advance the revisal amount (((N_PILOT-1)/N_PILOT) and 1/N_PILOT (or 1/ (2 * N_PILOT))), each the revisal amount to each typical value computing of dividing is calculated is stored in each operation result in the form 24, when the 2nd revisal, read each operation result from form 24.Therefore, owing to when carrying out the 2nd revisal, needn't calculate the revisal amount at every turn, as long as read the operation result that obtains in advance, so can promptly carry out the 2nd revisal from form.

(execution mode 3)

Present embodiment also is the SIR checkout gear of execution mode 1 and the variation of radio communication device, the wireless processing section 4 of execution mode 1 is one that selects from a plurality of wireless processing section, and computing is based on the revisal amount of the pairing power N of this wireless processing section of selecting.

Fig. 9 is the structure chart of expression as the radio base station apparatus 10 of the radio communication device of present embodiment.This radio base station apparatus 10 adopts from because of the various a plurality of wireless processing section 41～4n of differences such as manufacturing company or product class (n a: wireless processing section of selecting natural number) (for example 41), the wireless processing section 4 in the radio base station apparatus 10 of alternate embodiments 1.In addition, corresponding to a plurality of wireless processing section 41～4n each, the NF value also exists a plurality of.

And, in the radio base station apparatus 10 of present embodiment, the digital demodulation portion 7a Alternative digital demodulation section 7 with SIR checkout gear 72 is set.SIR checkout gear 72 and SIR checkout gear 71 be the SIR of detected wireless signals similarly, has the storage part 72a that is made of memory or register.

But, in the present embodiment, the interface of notifying each NF as 12 grades of the interface in the enforcement mode 1, each wireless processing section 41～4n is not set, and in the starting sequence of radio base station apparatus 10, SIR checkout gear 72 can not automatically obtain each the NF information among wireless processing section 41～4n.

Like this, although notification interface is not set, neither not provide each NF information of wireless processing section 41～4n to SIR checkout gear 72.In the present embodiment, maintenance/maintenance person by radio base station apparatus 10 etc. all offers SIR checkout gear 72 with each NF information of wireless processing section 41～4n, is stored in the 1st form 25 of the storage part 72a in the SIR checkout gear 72.In Fig. 9, be illustrated in the 1st form 25 storage corresponding to each NF component value of n wireless processing section 41～4n as b1～bn[dB] situation.In addition, the 1st form 25 is set not only in storage part 72a, the 2nd form 26 also is set.

Because other structure is identical with the radio base station apparatus 10 of execution mode 1, so omit explanation.

In the present embodiment, SIR checkout gear 72 is according to each the NF information that is stored in the 1st form 25, and the internal noise of specific wireless handling part 41～4n puts on the value of each the power N on the wireless signal.And SIR checkout gear 72 is according to formula (4), uses the value of the pairing power N of the value of power I of interference components and the wireless processing section selected from wireless processing section 41～4n (for example 41), carries out the revisal from SINR to SIR.

More particularly, SIR checkout gear 72 is when radio base station apparatus 10 initial start-ups, use is stored in each the NF value of the wireless processing section 41～4n in the 1st form 25, but the value to the power I of each wireless processing section 41～4n and each interference components is divided, and calculating in advance in the formula (4) is the revisal amount of 10 * log (I+N)-10 * logI.And, each revisal amount of calculating is stored in the 2nd form 26.

Figure 10 is the figure of this 2nd form 26 of expression.At first, in the 2nd form 26, have the 1st wireless processing section 41～the n wireless processing section 4n each the revisal amount storage area 26a, 26b ..., 26c.And, as enlarging expression storage area 26b among Figure 10, in each of each storage area, but the span of the power I of interference components from deficiency-108.0dBm (index 0) ,-the above deficiency-107.9dBm of 108.0dBm (index 1) ,-the above deficiency-107.8dBm of 107.9dBm (index 2) ... above deficiency-the 85.0dBm of ,-85.1dBm (index 229), to-85.0dBm above (index 230), divide with the 0.1dBm scale.And, revisal amount into above-mentioned 10 * log (I+N)-10 * logI is calculated in each division, as y0～y230[dB], with each the revisal amount y0～y230 that calculates be stored in each storage area 26a, 26b in the 2nd form 26 ..., among the 26c.

According to the value of each power N of the internal noise of each typical value of dividing and the 1st wireless processing section 41～the n wireless processing section 4n, each revisal amount y0～y230 is calculated in each division.In the typical value of dividing, the above deficiency-107.9dBm of employings-108.0dBm (index 1) is divided into example, also can adopt as median-107.95dBm, perhaps, also can adopt division interior minimum value-108.0dBm or maximum-107.9dBm.And, with regard to each power N of the internal noise of the 1st wireless processing section 41～the n wireless processing section 4n, as long as use the NF shown in Fig. 1 and Fig. 2 vector component (+4dB).

SIR checkout gear 72 is from the revisal of SINR to SIR the time, the limit is with reference to the power I of the interference components of calculating according to RSSI, and read from the 2nd form 26 based on being one of revisal amount y0～y230 of the power I that is arranged on pairing power N of the wireless processing section of selecting in the radio base station apparatus 10 and interference components among the 1st wireless processing section 41～the n wireless processing section 4n on the limit.And, according to formula (4),, proceed to the revisal of SIR by deducting the revisal amount of reading from SINR.

For example, in the 1st wireless processing section 41～the n wireless processing section 4n, be used for radio base station apparatus 10 be the 2nd wireless processing section 42 as the B goods of A corporate system the time, maintenance/maintenance the person of radio base station apparatus 10 is provided at the information that adopts the 2nd wireless processing section 42 in the radio base station apparatus 10 to SIR checkout gear 72 when radio base station apparatus 10 initial start-ups.

The value (the power I that is equivalent to interference components) of the RSSI that obtains from RSSI determination part 13 is during for-91.0dBm, and SIR checkout gear 71 is with reference to the storage area 26b corresponding to the 2nd wireless processing section 42, the index 171 in storage area 26b under the reference-91.0dBm.Because according to storage area 26b, the revisal amount is y171[dB], only deduct revisal amount y171[dB so SIR checkout gear 72 is established from detected SINR] value be SIR.

In addition, as shown in Embodiment 2, also can be after having carried out being converted to the revisal of SIR from SINR, by the revisal amount of computing, dwindle the 2nd revisal of following the error that SIR infers according to the pilot tone figure place.

SIR checkout gear and radio communication device according to present embodiment, detected SINR is being converted in the revisal of SIR, to the value of detected SINR, computing is according to the revisal amount of the power I of pairing power N of wireless processing section that selects from a plurality of wireless processing section 41～4n and interference components.Therefore, even if select also to obtain not having the SIR of internal noise influence, can realize to detect closely the SIR checkout gear of sir value because of one of different various a plurality of wireless processing section 41～4n such as manufacturing company or product class.

And, SIR checkout gear and radio communication device according to present embodiment, but the value scope division of the power I of interference components is become a plurality of, value according to each power N of the internal noise of each typical value of dividing and a plurality of wireless processing section 41～4n, each calculates the revisal amount in advance to dividing each and a plurality of wireless processing section 41～4n, each revisal amount of calculating is stored in the form 26, when being converted to the revisal of SIR, from form 26, read value corresponding to the power I of interference components from SINR, revisal amount with the wireless processing section of selecting from a plurality of wireless processing section 41～4n.Therefore, owing to, only from form 26, read the revisal amount and get final product, so revisal rapidly carry out to calculate the revisal amount when SINR is converted to the revisal of SIR at every turn.

(execution mode 4)

Present embodiment is the SIR checkout gear of execution mode 1 and 2 and the variation of radio communication device, be following SIR checkout gear and radio communication device, promptly use a form of the form 24 of the form 15 made up execution mode 1 and execution mode 2, remove the 1st revisal of the power N of the internal noise that comprises among the SIR, and, dwindle the 2nd revisal of following the error that SIR infers according to the pilot tone figure place in the CDMA mode.

In addition, the SIR checkout gear of present embodiment and the structure of radio communication device are identical with the structure of execution mode 1, and only the revisal of the SIR checkout gear 71 among Fig. 2 is handled different.

Figure 11 is the figure that expression is used for the primary system one of detected SINR is carried out the form 27 of the 1st revisal and the 2nd revisal, the 1st revisal utilizes formula (4), is the revisal amount of 10 * log (I+N)-10 * logI by deducting based on the power I of the power N of internal noise and interference components, remove the power N of the internal noise that comprises among the SINR, the 2nd revisal utilizes formula (13) or formula (14), by the revisal amount (each component of (N_PILOT-1)/N_PILOT and 1/N_PILOT) of computing, dwindle the error of following SIR to infer based on the pilot tone figure place in the CDMA mode.

At first, in form 27, but the span of the power I of interference components is divided as the 1st, from deficiency-108.0dBm (index 0) ,-the above deficiency-107.9dBm of 108.0dBm (index 1) ,-the above deficiency-107.8dBm of 107.9dBm (index 2) ... above deficiency-the 85.0dBm of ,-85.1dBm (index 229), to-85.0dBm above (index 230), divide with the 0.1dBm scale.And to each the 1st division, the value of corresponding power N is calculated the revisal amount into above-mentioned 10 * log (I+N)-10 * logI in advance, as a plurality of the 1st revisal amounts.

And, in the present embodiment, divide but the value scope division of the SINR that detects is done the 2nd.In form 27, but the value of the SINR of detection from-11.1dB ,-11.0dB ,-10.9dB ..., to+20.0dB, divide with the 0.IdB scale.When in detecting SINR value, having the part of decimal point below the 2nd,, go into or give up, need only sir value in the division of arbitrary index for example by rounding up.In the typical value of dividing, as long as the value that adopts each index is (for example, if be index 1 then be-11.0dB).And the value of deficiency-11.1dB is considered as-11.IdB, than+value that 20.0dB is big be considered as+20.0dB gets final product.

And the 1st revisal amount to each the 2nd each typical value computing of dividing is calculated obtains the 1st operation values.The 1st operation values is each value of the SIR of the power N of the internal noise of removal wireless processing section 4 from SINR.

And, to each pilot tone figure place N_PILOT (here, suppose that the pilot tone figure place gets one of 3～8) computing is above-mentioned ((N_PILOT-1)/N_PILOT) and 1/N_PILOT (or the 2nd revisal amount of 1/ (2 * N_PILOT)), according to formula (13) or formula (14), to its value of calculating respectively of each the 1st operation values computing, with each operation result as the 2nd operation values a-0-0-3～a-0-0-8[dB], a-0-1-3～a-0-1-8[dB], a-0-311-3～a-0-311-8[dB], a-1-0-3～a-1-0-8[dB], a-1-311-3～a-1-311-8[dB], a-230-0-3～a-230-0-8[dB], a-230-311-3～a-230-311-8[dB] be stored in the form 27.

For example, the value (the power I that is equivalent to interference components) of the RSSI that obtains from RSSI determination part 13 for the SINR value of-91.0dBm, detection be+4.5dB, pilot tone figure place are 5 o'clock, in the index 171 of the form 27 under the SIR checkout gear 71 basis-91.0dBm SINR value+hurdle of 4.5dB and the information of pilot tone figure place 5, read the 2nd operation values a-171-156-5[dB of the value-91.0dBm corresponding to the power I of interference components, detected SINR value+4.5dB and pilot tone figure place 5 by SIR checkout gear 71] information, as the operation result of the 1st and the 2nd revisal.

According to the SIR checkout gear and the radio communication device of present embodiment, when the 1st and the 2nd revisal, from form 27, read the 2nd operation values corresponding to the value of the power I of interference components, detected sir value and pilot tone figure place.Therefore, owing to when carrying out the 1st and the 2nd revisal, needn't calculate the 1st and the 2nd revisal amount at every turn, as long as from form 27, read the 2nd operation values, so can carry out the 1st and the 2nd revisal rapidly.And, owing to each the 2nd revisal amount (((N_PILOT-1)/N_PILOT) and 1/N_PILOT (or 1/ (2 * N_PILOT))) that the 1st operation values computing is calculated, each operation result is stored in the form 27 as the 2nd operation values, when the 1st and the 2nd revisal, from form 27, read the back and use, so can not carry out but unifiedly promptly carry out the 1st and the 2nd revisal with two stages.

Though understand the present invention in detail, above-mentioned explanation is an example in aspect whole, the invention is not restricted to this.Should be understood that the countless variation of example can not depart from the scope of the present invention supposition and obtain.

Claims (9)

1, a kind of SIR checkout gear is characterized in that:

The signal component that detects the expression wireless signal with the signal component of the power ratio of interference components to interference components than (SIR:Signal to Interference Ratio),

According to the NF (Noise Figure) of the wireless processing section (4) of described wireless signal being carried out the analog in RF (Radio Frequency) zone, the internal noise of specific described wireless processing section puts on the value of the power N on the described wireless signal,

According to the RSSI (Received Signal StrengthIndicator) of the receiving intensity of representing described wireless signal, the value of the power I of the interference components that comprises in the specific described wireless signal,

By to the 1st revisal amount of detected described sir value computing according to the power I of the power N of described internal noise and described interference components, the 1st revisal of removing the power N of the described internal noise that comprises among the described SIR.

2, SIR checkout gear according to claim 1 is characterized in that:

Obtain the information of described NF in advance from described wireless processing section (4), the value of the power N of specific described internal noise,

But the value scope division of the power I of described interference components is become a plurality of, value according to the power N of each typical value of described division and described internal noise, each calculates described the 1st revisal amount in advance to described division, and each described the 1st revisal amount of calculating is stored in the form (15)

When described the 1st revisal, from described form, read described the 1st revisal amount corresponding to the value of the power I of described interference components.

3, SIR checkout gear according to claim 1 is characterized in that:

Described wireless signal is the signal of CDMA (Code Division Multiple Access) mode,

By detected described SIR is carried out described the 1st revisal, and computing is based on the 2nd revisal amount of the pilot tone figure place in the CDMA mode, dwindles the 2nd revisal of following the error that described SIR infers.

4, SIR checkout gear according to claim 3 is characterized in that:

But the value scope division that will carry out the described SIR of described the 1st revisal becomes a plurality of, according to described pilot tone figure place, each calculates described the 2nd revisal amount in advance to described pilot tone figure place, each the 2nd revisal amount that each typical value computing of described division is calculated, each operation result is stored in the form (24)

When described the 2nd revisal, from described form, read corresponding to the value of the described SIR that carries out described the 1st revisal and the described operation result of described pilot tone figure place.

5, SIR checkout gear according to claim 3 is characterized in that:

Obtain the information of described NF in advance from described wireless processing section (4), the value of the power N of specific described internal noise,

But become a plurality of the 1st to divide the value scope division of the power I of described interference components, and, but become a plurality of the 2nd to divide the value scope division of the described SIR that detects,

According to the value of the power N of the described the 1st each typical value of dividing and described internal noise, each the described the 1st is divided described the 1st revisal amount of calculating in advance,

To described the 1st revisal amount that the described the 2nd each typical value computing of dividing is calculated, establishing each operation result is the 1st operation values,

According to described pilot tone figure place, each described pilot tone figure place is calculated described the 2nd revisal amount in advance,

Each the 2nd revisal amount to each described the 1st operation values computing is calculated is stored in each operation result in the form (27) as the 2nd operation values,

When the described the 1st and the 2nd revisal, read described the 2nd operation values of the value corresponding to the power I of described interference components, detected described sir value and described pilot tone figure place from described form.

6, SIR checkout gear according to claim 1 is characterized in that:

Described wireless processing section is one that selects from a plurality of wireless processing section, and corresponding to described a plurality of wireless processing section, described NF also exists a plurality of,

According to a plurality of described NF, the described internal noise of each of specific described a plurality of wireless processing section puts on the value of each the power N on the described wireless signal,

In described the 1st revisal, to detected described sir value, computing is according to described the 1st revisal amount corresponding to the power I of the described power N of the described wireless processing section of selecting from described a plurality of wireless processing section and described interference components.

7, SIR checkout gear according to claim 6 is characterized in that:

Obtain a plurality of described NF information in advance, the value of each power N of specific each described internal noise,

But the value scope division of the power I of described interference components is become a plurality of, value according to each power N of each typical value of described division and each described internal noise, each calculates described the 1st revisal amount in advance to described division each and described a plurality of wireless processing section, each described the 1st revisal amount of calculating is stored in the form (26)

When described the 1st revisal, read described the 1st revisal amount corresponding to the value of the power I of described interference components and the described wireless processing section from described a plurality of wireless processing section, selected from described form.

8, SIR checkout gear according to claim 1 is characterized in that:

Can select whether to carry out described the 1st revisal.

9, a kind of radio communication device is characterized in that: possess

Comprise the described SIR checkout gear of one of claim 1～8 demodulator (7,7a);

Described wireless signal is carried out the wireless processing section (4,41～4n) of the analog in the RF zone; With

The RSSI determination part.

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