TW200947903A - Apparatus and method for computing maximum power reduction for a UMTS signal - Google Patents

Abstract

A method and apparatus are provided for controlling transmit power with an estimated value of cubic metric (CM) and/or peak-to-average ratio (PAR). Preferably, the method is applied in determining a value for Maximum Power Reduction (MPR) for computing maximum-MPR or minimum-MPR, by estimating CM and/or PAR from signal parameters. The method of estimating CM and/or PAR is applicable to any multicode signal.

Description

200947903 VI. Description of the Invention: TECHNICAL FIELD The present application relates to wireless communication. [Prior Art] In actual amplifier circuits, for example, in amplifier circuits used in the Transmitter of a Universal Mobile Telecommunications System (UMTS) Wireless Transmitting and Receiving Unit (WTRU), spectral regeneration is due to non-linear amplifier characteristics. The term spectrum reproduces the increase in out-of-band signal energy at the output of the power amplifier. The spectral regeneration produced by the non-linear amplifier effect is mainly generated in the channel adjacent to the desired transmission channel. For UMTS, the power amplifier requirements are defined by the adjacent channel leakage ratio (ACLR) of +/- 5 MHz at the desired channel. The following are the amplifier voltage gain characteristics: V0 (t) = ^ · V,. (0 + g2 V,. (Ο2 + g3 . Vi (〇3 + ... + gn . Vi {t)n Equation (1) Among them, is the linear gain of the amplifier, and the rest (ie, ❹ Α·ν,·(ί)2+&·咕)3+·..+义·ν,.(0") represents the nonlinear gain. If the signal carries a modulated third-generation partner (3GPP) radio frequency (RF), a nonlinear term is produced as a result of intermodulation distortion, which produces in-band distortion terms and out-of-band distortion, in-band distortion. It will cause an increase in the error vector magnitude (EVM), and the out-of-band distortion will cause an increase in the ACLR. Both of them will cause a decrease in the modulation quality. For example, the multi-signal signal in UMTS version 5 and version 6 is at the peak-to-average power. There is an increase in the number, which will produce more dynamic signal changes. These increased signal changes will be more linear and more linear, which will result in greater power consumption. Most 3 200947903 ^ t Near_fruit_, for the dB shirt It is not effective to take Wei Fei (that is, the secret of the power of the scale and the power of the average power, also known as the ride (nen)). Analysis of the spectrum regeneration shows that the third-order nonlinear gain term (cubic gain) is the main reason for the increase in ACLR. The total energy of the cubic term depends on the statistical distribution of the input signal. With high-speed uplink packet access (HSUPA) The proposed method introduced in version 6 is a new method for eliminating the power attenuation of the amplifier, called the cubic metric (CM). The CM is based on the cubic gain portion of the amplifier. The CM describes the signal in the speculation. The ratio of the cubic part to the 12.2 _voice interference signal. CM is applicable to both high-speed downlink packet access (excitation pA) and HSUPA uplink signals. Statistical analysis shows that the power derating and basis are estimated according to cm. Compared with the power derating of 99.9 % PAR, it shows a significantly smaller error distribution. The difference between the power drop of the actual drip sugar meter is the difference between the power derating of the actual drip sugar meter. A subtraction (MPR) test, which indicates that the maximum transmit power of wrpj^u 1 is greater than or equal to the nominal maximum transmit power, but less than the total amount of so-called "maximum MPR" where the maximum is a function of the CM ❹ of the transmitted signal. For a given power amplifier, the manufacturer can decide that the device needs to smell its maximum power, which is referred to herein as "minimum deletion", which is J at maximum MPR' but compatible with 3gppacLR. Although "minimum mpr" It can be 疋$ as a function of CM, but can alternatively be defined as a function of the percentage of PAR's characteristics. Using minimum MPR instead of maximum MPR to limit maximum power' enables the WTRU to perform at greater maximum power Launching 'so that the minimum 赃 (four) is used, the manufacturer has a more competitive position. It is also possible that a wTRU design can include ftAMpR and minimum MPR ′ and choose between the two. Regardless of the maximum MPR filament MpR, the problem is that the WTRU must know the value of CM~ or (10) to calculate the selected calendar, and if necessary, (ie, if the fat is operating near maximum power), Finally, the above values are used to actually set the transmission power. Any multi-code signal ❹ ❹ (characterized by the physical channel being transmitted, its channelization code, and the weight of the W item) has its specific CM and PAR. In UMTS, the signal, as well as CM and pAR, can vary in every 2 or (7) milliseconds of time interval (TTI). It can be seen that for the bribe § version 6 ′ with the channel parameter and the quantified 0 item of more than 200,000 _, each combination here is called the age number. A large number of possible record-casting _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In low power handheld devices. After understanding w and not simply looking for a CM or PAR, you need to clarify it from the characteristic parameters of the money within the tolerance of -^. Measuring CM or inspection from actual signals is known. An important flaw is that it must be produced first. Since the transmission discrimination may eventually be set as a function of CM and/or par, setting the power by measurement will require generating a signal or at least a segment__ signal portion before transmission. Although this is theoretically feasible, it is not feasible to observe the 3's requirements and the storage limitations. A variant of the above method is to generate and start transmitting signals at the power level calculated from CM or PAR# "guess," calculated 5 200947903, and adjust the transmit power to the first time slot remaining in (7). The second power stage. The combination of the first and second power levels is calculated such that the average power level is close to the power level selected by the CM or PAR before the start of π. In the UMTS towel, in the 1 second second buckle There are 15 time slots, but there are only three time slots in the 2 millisecond ΤΉ. Assume, for example, that the measurement of CM or PAR. requires, for example, K) milliseconds of ΤΠ-time slot-parts to complete, then the initial power The level will be set to be used only for the first domain, and the 14 time slots that are off will use the first value. For a TST of 2 home seconds, the initial power level will be set to use the time slot of the first time slot.三 one third of the TTI, and the remaining two-thirds of the π will use the second value. Obviously, this method is not consistent, especially in the case of a 2 millisecond TTI. Therefore, a method is needed. After you start sending the nickname, you can determine the CM or PAR to determine the maximum size. / or minimum MPR, and final transmit power. SUMMARY OF THE INVENTION [0005] A method and apparatus for controlling transmit power using estimated values of CM or pAR is provided. This method is opposite to directly measuring CM or pAR, Applies to determining the maximum power attenuation value (jyjpR) or minimum mpR for calculating the maximum MPR by estimating CM or pAR from signal parameters. The method of estimating CM or PAR is applicable to any multi-code signal. [Embodiment] The term "wireless transmit/receive unit (WTRU), including but not limited to user equipment (UE), mobile station, fixed or mobile use 200947903, early element, paging machine, action mine per plus, & any basin His class coffee ~ heart! Assistant (PDA), computer or any 1, he, 1 user device that is capable of operating in a wireless environment. The 9- °° base port includes, but is not limited to, the Node B, the site controller, the access point fAP, and the Wfy β ‘, () other peripherals that operate in the wireless environment. Figure 1 is a block diagram of WTRu (9) configured to perform the methods disclosed below. In addition to the components included in a typical WTRU, the WTRU 120

The process includes the processing of the method disclosed in the configuration record n 125; the receiver 126 in communication with the processor 125; the transmitter 127 in communication with the processor 125; the disk receiver 126 and the transmitter 127 communicate with the solid wire data. Antenna 128 for transmitting and receiving. The WTRU wirelessly communicates with the base station 11A. The method of transmitting the CM and/or PAR' of the incoming signal of the parameter aging configuration parameter and estimating the county is described below. Configuration parameters include the number and face of physical channels and the configuration of the route. The configuration can be defined as a combination of channelization code and channel weight (called stone), optimally for in-phase (I) and quadrature channel (Q) partial codes. The channel weights (for a given service and data rate), other parameters, the so-called "configurations," and all combinations above are determined according to the specifications defined by 3GPP.

A signal can be defined as a combination of a physical channel and a cold item. ^_ A possible signal must be in at least one configuration. This definition can be extended. For example, a subset or limited range of some or all of the items for one or more physical channels including configuration conditions may be included. The identification of the smallest subset of configuration conditions is subjective, which specifies the minimum acceptable CM and/or PAR estimation error, which in turn is used for MpR 200947903, 'estimation error. An example of a set of 11 configurations is shown in Table 1. These configurations are limited to allowing up to one DpDCH. It will be apparent to those skilled in the art that the configuration is not limited thereto. However, 彳^ may not be ideal. The age indicates the acceptable smaller estimation error produced by the system, and the maximum maximum MPR estimation error 疋 is less than or equal to 15 dB. Table i shows that the configuration is usually defined by three main characteristics: the maximum number of DPDCHs (fine DPDCH) ' 2) whether to start high speed (HS); and 3) the number of E-DPDCHs and the expansion factor (SF) (E) -DPDCI^|@SF). Table 2 shows the mapping method for the replacement. Table 2 shows the situation in which the filaments are defined in the table towel, and the Jgj knife is used as a case for the night, so that fewer errors than the map of Table 1 can be produced. In particular, it indicates that the maximum maximum MPR estimation error is less than or equal to 1.0 dB. Referring back to Table 1 'the HS Chan Code column relates to the specific "SF and Orthogonal Variable Length (ov) SF Codes" for HS_DPCCH. Note that SF is typically 256 ’ and one of two codes (% and 64) is used for 〇VSF ’. When the second shed (ie HS) shows no ("N") HS, this column is indicated as ''not available'' (N/A). E-DPDCH 1,3 I or Q is indicated in this section, Display I or q, E-DPDCH channels #1 and #3 ' are used according to the condition of the column. E-DPOCH 1,3 Chan code, if any, relates to E for channels #1 and #3 - SF and OVSF codes of DPDCH. For example, 'Configuration Case 6 has two E-DPDCH' flags ## and #3, and the rest of the column is either none (not available) or one (default is "#1" Most of the 8 200947903 configurations have only one E-DPDCH. The E-DPDCH 2,4 Chau code column is similar to the above for 'two or more E-DPDCH cases. I and Q block representation In the I and Q parts of the /5 item. In configuration case 6, 'related to E-DPDCH channels #1 and #2, and Shibi 4 involved E-DPDCH channels #3 and #4. Table 1

----- Configure Nmax HS E-DPDCH HS E-DPDCH E-DPDCH E-DPDCH IQ Case DPDCH _SF Chan code 131 or Q l, 3Chan code 2, 4Chan Ma 0 1 N 0 N/AN/AN/AN/ A βά Λ 1 0 Y 1@SF>=4 256, 33 I SF, SF/4 N/A fitted βζβ\^ 2 0 N 1@SF>=4 N/AIN/AN/AA 3 0 Y 0 256, 33 I SF, SF/4 N/AN/A 4 0 Υ / 2@SF>=4 256, 33 I SF, 4,1 Ν SF/4=4,1 β^ά 5 0 Υ/ 2@SF> =2 256, 33 I 2,1 2,1 Ν β^ά 6 0 Υ/ 4@SF>= 256, 33 I(#l) 2,1(#1) 2,1(#1) ^ec^ Ed, Ν 2/4/2/4 1(#3) 4,1(#3) 4' _ β&ά3/4 β味Ad3/4 7 1 Υ 0, or 256,64 I SF, SF/2 N/A fic^hs 1@SF>=4 ββά' 8 1 Υ/ 2@SF>=4 256, 64 If SF, 4,2 fic^hs, Ν ΪΚ=,Ύ” SF/2=4,2 fitA, fied, then I, no--- then Q 9 200947903 9 1 Y/ Ν 2@SF>=2 256,64 If HS=T, then I, otherwise Q SF,. SF/2=4, 2 4,2 βοά, βζβ\&, Ad 10 1 Ν 1@SF>=4 Ν/Α Q SF, SF/2 N/A βά,^β&ο, A, Ad Table 2 Configuration situation Nmax DPDCH HS E-DPDC H , @SF additional status 0 1 N 0 N/A 1 0 Y 1@SF>=4 N/A 2 0 N 1@SF>=4 N/A 3 0 Y 0 N/A 4 0 Y/N 2@SF=4 N/ A 5 0 Y/N 2@SF=2 N/A 6 0 Y/N 4@SF= 2/4/2/4 N/A 7a 1 Y 〇, or 1@SF>=4 fic βά >0 7b fic-βά 彡0 8a 1 Y/N 2@SF=4 fic - βά >0 15*Aed=5 8b >0 15*Aed~=5 8c fic βά 彡0 15*Aed=5 8d fic - ά 彡 15 0 15*Aed~=5

10 200947903

9a 1 Y/N 2@SF=2 >0 9b fit. ~βά 彡0 15*Aed=5 9c β〇-βά 彡0 15*Aed—5 10 1 N 1@SF>=4 N/A

Configuration case 0 in Tables 1 and 2 is a known general case where zero maximum MPR is required. For this configuration case, instead of using the calculation method for all other configuration cases, the maximum MPR and/or minimum mpr is simply set to zero. Referring to Figure 2, a simple version of the offline process 200 is shown. In the following, a more detailed description will be made in conjunction with Figure 3, which ultimately calculates and

Parameters for the WTRU are stored to generate a maximum MPR and/or a minimum mpR value. In UMTS, each combination of physical channels and parameters and quantized value stones is a possible signal. The quantized value is based on the configuration of the signal. First, all possible signals are mapped to a set of configuration scenarios (210). The quantized value (220) can be generated for all possible signals by using the information (I and Q)' given in the last two columns of Table 1. The CM and/or PAR (230) for all possible signals is measured by transmitter simulation. The measurement of cm and PAR will be described in more detail below. The pre-calculated term a is optimally determined 240 by using the transmitter simulation 23 turns. Optimally for each __ lion case defined above, a set of alpha terms for CM and/or for PAR (2 terms) calculated according to Equation 7 below. In one configuration, Transmitter Simulator 230 measures CM and PAR for all possible letters 11 200947903 (in the following section, the cap will be deduced in detail for CM and /

Or to make a mathematical derivation of the estimate), the signal here is defined as all the fits that quantify the f-term 22G in 3GPP. The method of least squares fitting can be called to 'pre-calculate the specific configuration from all possible pros of the configuration, or from a typical subset of its towels. Calculate the calculated alpha term, configuration, and calculation (4) miscellaneous (after the 2 price, write these values into the WTRU400 by using the body, software or hardware. Figure 3 is the offline initial configuration process (3〇〇) The process 300 calculates _ for both CM and PAR, and determines the adjustment factor for the configuration. This is stored in the WTRU (10), and the signal is estimated to be CM and PAR. Refer to Figure 3 for a detailed version of the offline process. First, at 310, the configuration is defined according to the characteristics of the physical channel. For example, as shown in the configuration case 9 in the table, DPCCH, a clear CH (the largest - a single CH), HS_DPCCH (the △ and Λ α3 ΐ are set equal; ... 疋 send a monthly response (ACK) and channel Quality indicator (cqj)), E DPCCH and 2SF@=2 (two E-DPDCHs in SF are equal to 2).

Use the information in the rightmost two blocks of Table 1 (I#〇Q) to determine the required single, plain component shout (4). From the characterization of Equation 5 (described below), {hearted heart (4) L heart} and {~ ~ cold qs} - {/5C ^hs /3ec} (the designation of a specific number is arbitrary). Sixteen such items md are defined in Table 3,

Hi' β』ά, ^ point dUhs, 泠 C stone e々/3hs) 5ed. 12 200947903 After determining all possible signals for the configuration (ie, all combinations of metrics). Each of the 3Gp = channel = value pair of thirty implicit fine people Δ - 〇 has the number of 10,000 c and 泠 d A = / 9 / 6 two absolute values of the two aunts, a strict ~ The nine values and meanings are ten for each of the 72,900 possible values for each configuration. Kind of 1 ^ machine inspection. There is no column here to use the transmitter simulation to wire the configuration (10) all 729 (8) possible signals to measure CM and measure 99% PAR (33 〇). The measured 145,800 values are not listed here.十六 Calculate sixteen pre-calculated alpha values for estimating cm and sixteen for estimating PAR using Equation 7 using the measured values of 72,000 possible signals and linear CM and linear PAR for each configuration. A pre-tested alpha value (340). The symbol term is given in Equations 8 to 7; the numerical value of the α term is given in Table 3. Although it is possible to use only a small subset of 72,900 combinations', but assuming a matrix X with 72,900 lines in the next step, a complete set of the entire 72,900 combinations is used to calculate Table 3 for a configuration case. Table 3 The function of the evening term ^CM 0PAR ^ec -1.53154 __ -0.0333305 —~ β^ά -1.04303 +1.97253 — _ βά -1.88422 -0.691914 —~ β〇-1.10666 -1.24791 As -0.851261 _ -0.642072 ficc +2.7545 _ +2.3413 — -β&ά +3.39477 +1.35334 βά2 +2.85157 +2.61758 β,1 +2.47229 +2.86022 々hs +2.37892 +2.63543 — 13 200947903 .Aec ββά +23^ϊΤ~~ +1.72716 Pete -Ad βά .β〇 ^•l〇D53 +1.27585 +2.95673 -LI HC^on +2.75154 A: .々ed +2.052R^ +1.80679 βεΑ +3.06353 +1.59968 +2.07734 ...for every possible signal, Equations 5 and 6 (will The stalk type described is described below to estimate linear CM and linear sputum ((10)). The calculation of the moment_form is given in Equation 12. The matrix X is a numerator of the equation $ and includes a normalization function for a single zero term. The matrix γ is a linear CM and a line! The raw PAR measurement is multiplied by the denominator of Equation 5; the model of Equation 6 uses a similar form. Equation 13 is best used to calculate the estimated error (360) for both the CM and the test. For further description, the distribution of the CM estimate of the error of 50 is given in Figures 6A and 6b. The distribution of the PAR error dB form is given in Figure 7a and Figure π. Fig. 6A and Fig. 7a show the model described by Equation 5, and Fig. 6B and Fig. % show the model described in Equation 6. After that, I really need to ride the adjustment factor (37G). It can be seen from the inspection that for the model of Equation 5, the adjustment factor for the maximum MPR, the maximum amplitude positive error in Figure 6A is about 054 dB or 1/0.883. If the minimum mpr is the desired result, the adjustment factor using CM for the minimum MPR, and the maximum amplitude negative error for Figure 6A is about _〇71 dB. The adjustment factor using PAR for the minimum MpR and the maximum amplitude negative error in Figure 7A is approximately -〇.41dB. As can be seen from Figures 6B and 7B, the corresponding values for the model of Equation 6 are -〇54t, _0.080dB, and -〇.57dB. 200947903 Determine the distribution of the maximum MPR error (10) by using the adjustment factor, as above. ·)· Calculated 'the adjustment factor' is both. Looking at the 5A ® and 5B graphs, the maximum MPR error is displayed. For the two models, the maximum maximum MPR error is 1.5 dB. If it is considered to be sufficient in this example, then theoretically two Model ^ can be used ^. Ο , as the second standard 'should note that, as shown in Figures 5A and 5B, the frequency of occurrence of the maximum error of the model of Equation 5, ie 9/72900, is lower than the model of Equation 6 '406/72_ . Therefore, the model of Equation 5 is selected, and the 〇 value and the adjustment factor (390) are configured in the WTRU (400). Alternatively, the model of Equation 6 estimates that the CM requires less multiplication, and if this is a significant factor, then the model can be selected. The derivation of the estimated CM and/or PAR is now described. The PAR of the uplink signal is determined according to Equation 2 after the channel weight has been used, but before the root raised cosine and other filters are used.

^ = ioi〇g(p^ijBe〇r)=i〇log \

Equation (2) where; 泠/ is the channel weight for the physical channel in the I part; Stone 2 is the channel weight for the physical channel in the Q part; the outside is the number of physical channels in the I part; The number of physical channels in the Q section. 15 200947903 According to one embodiment, for a given configuration case, (linear rather than bile-form CM, and without 0.5 dB quantization of 3GPP method) is estimated as a function related to pre-filtered PARftnear of Equation 2 , as shown in Equation 3: —___一_1 Equation (3) ϊ>/+ίχ/ 7=1 j=\ where; 〇r; is the actual weighting factor for each physical channel; η is An integer used to define the total number of indications; #On/er疋任忍 polynomial order; and (-. i Nj N 2-« , real ~+g~2) is a normalization function, the function makes Values are independent of 比例 in any ratio. It is also possible to use the function of _ in Equation 3 to estimate (four) the waver infusion = the value of only the term in Pdu is different from that used for the CU. Friend

(4) Signal, which is used to estimate the % job /_ will have a difference between the estimated value and the measured value, which is called the estimation error.

You can choose to be any positive integer, but in - a real hair = coffee 7^0 such as two 2. The empirical results show that by using #验=: there is a material error of No. 4 to determine the maximum MpR

More than 2 combined disease "Acceptable Article 11. For this reason, U: creates additional complications, and there is no significant performance improvement. Because 16 200947903 When the U history is 2, Equation 3 is simplified to Equation 4:

Equation (4) Extending Equation 4 yields the equation $. ^ ❹ ¥^2 Equation (5) =, the CMW described is basically equal to the weight of the single-party weighting (weighted by the square root term), the in-component intersection and the/5-term and the inner product of the detail item. The formula also applies to tearing w, except that the value of the alpha term is different. It is shown in Equation 6 that the model of the replacement model 6 described in Equation 5 removes a single term and the normalization function of money (the last term in the numerator of Equation 5). Empirical results show that for some configurations, the model produces less than the secret error of Equation 5.

1>/"2+堂) r^h-Pn +ΣαΛ; +Σ Σ auApQk ___τ*ΐί·»>+ι hi-ba; 11 1 equation (6) For a given configuration, The value of the alpha term can be determined from: j) 17 4 200947903 using transmitter simulation (23〇) to measure all or a few of the typical possible signals and/or singularity _; and 2) using the known minimum The two-square fitting method is given in the form of a matrix in Equation 7. Equation (7) α = {χτχΥχ^γ where;

The X疋 matrix (known as the design or Vandennode matrix), each signal - row 'where, - each element in the row is a square, a single weight, or a numeric value of the parent fork in the component. This is done by replacing the symbolic sum of the symbol in Equation 5 or Equation 6 with the mosquito channel 0 item; for the case of having two E-DPDCHs of two thieves, the case of each _ solution and payment should only be A row of X' instead of two or four rows; and γ is a column vector with one element per signal, each of which is a ❸ ❸ seam. The false silk material estimates the 〇: item of the <^1 or the 〇: item used to estimate 1^, multiplied by the money weighted in the denominator of Equation 5 or Equation 6. Yes, it is calculated during holidays; _, 贝, j γ of CM = CM and PAR can be used for two such columns, and the other is used. The symbolic item of the ninth term (instead of its numerical value) in the equation (7) is provided below:

72900 ^~fiec72900 怂 X+2«+t Pdi +βεα +2^22+^22+^2

Equation (8) 18 1= 200947903

❹ &quot;Iz= χτ ^βά\+ββ(Λ +^ed\ +Pc\ +fihs\ +^βεά2 + β〇2 + fihs2 Equation (9) ^rf72900 +Art2900 +^ed72900 + A:72900 +Α Fiec\ fiec2 ββά 1 βεά 2 β&lt;η β&lt;η β〇\ β〇2 fihsl Phsl fiec22 β&amp; ί2 An2 βάι Pc' β〇2 Phs\ fihs2 Pec\Ped\ PeclPedl Pec\Pd\ βεϋΐβάΐ βεά\β&lt; η β &amp;ηβάΐ Pc\fihs\ PclPhsl β〇\βεά\ βοΐββάΐ fihs 1 βεά 1 PhslPed 2 β( ec\

Jed\ Y^diagiy CM"ineafCM_linea^ 2 IJ72900

Ac72900 ^/72900 Af72900 A: 72900 72900. %c729QO 2 72900 2 ββά 72900 &quot;c 72900 Atr 72900 PecmmPednm ^ec 72900 A/72900 Foot d 72900A/72900 A? 72900Aj 72900 PciimPediim Phs1290^Pednm_PARJLinea^ PAR-lineaj[ CMJineajfmo PARJinea ^ 丨〇〇_

Equation (10) Equation (π) Ϋ = Χ α Equation (12) err = 10log(F)-10l〇g(F) Equation (13) The reduced set of possible signals cited in the above example relates to such The situation, that is, the number of signals required to reliably calculate a ^^ item may be orders of magnitude less than the number of all possible signals. However, Equations 12 and 13 are used to calculate the estimation error using a matrix 具有 with all possible signals. By limiting the number of signals used in the 算 算 α term, there is no significant savings in the offline processor 2〇〇. 19 200947903 'Definitely used for constructing moment = root = force rate (equate 5 and equation 6 denominator), and per quotient ^ in the equations 5 and 6 (in Equation 5) The root mean square term in the numerator) can be the same or substantially the same for all signals in a particular real &amp; In this production = to calculate for each signal. Instead, two weights; the number of knives is a constant for all signals. The ratio of the digital point items in the WTRU and the PAR, and then the calculation of the alpha term, is equal to the ratio of the digits in the WTRU.

For example, the weighting factors can be removed from equations 5 and 6, and validated into the alpha term. k through the use of the process of Figure 2 and Figure 3, for all the configuration of the wire = the alpha term, the adjustment for each configuration can be minimized the maximum MPR or the smallest model, already the equation The two karyotypes described in 5 and 6 are counted by leaves. The model that minimizes the maximum brush ^ and the minimum history ^ is calculated as follows:

In the case of maximum MPR, there are three alternative ways to determine the model that minimizes the maximum MPR estimation error. The yth (fourth) shot is the result of the solution of the solution 5 or 6 so that the adjusted estimated CM is not greater than the value of the actual measurement from the CM. _ _ _ should be the maximum amplitude of the supplementary configuration. The positive error 'turns should be subtracted from the real species. The purpose of this lion's integer error is to prevent the CM from being overestimated for any signal. The second alternative is that the estimated MVP from Equation 5 or 6 should be adjusted to be the correct MPR obtained from the actual CM measurement. The purpose of adjusting the error in this way is to prevent the maximum MPR from being overestimated for any signal. The following is the method of determining the adjustment factor: 1) Use the estimated CM for each signal in the configuration to determine the estimated MPR ( MPR_estimated ) and determine the actual MPR (MPI^true) from the actual cm of the known simulation. 2) Calculate the MPR error (MPR_error) according to Equation 14: ——rr〇r = MPR—true - MPR estimated equation (14) 3) From the signal with MPR error less than 〇, select the original according to Equation 15. Adjustment factor raw: adjustment-factor-raw= ms^CM-estimated·ceiKCM_ίηίφ,5)); equation (15) where (10)7(·,〇.5) means round up to the nearest 〇 5. 4) The final adjustment value is the value of Equation 15 plus a small amount, ^ to ensure that the largest signal in Equation 4 is not rounded up to the next 〇.5dB after the adjustment factor is used. In other words, Equation 16 is used to calculate an adjustment factor, where it is the largest from the signal with an MpR error less than zero.

Wi_je"i_/aCtor = max(CM_&siimaied-ce&quot;(CM-frue,0.5))+£ Equation (16) The third alternative is to use a smaller magnitude than the other alternatives used. The adjustment factor, the selected amount is compromised as a design (for example, preventing CM from being overestimated only for specific signals in the configuration case). For the case of calculating the minimum MPR to determine the model that minimizes the minimum MpR estimation error, the estimated Αν[or PAR should be adjusted such that the adjusted CM or PAR is not less than the actual measured value of αν [or PAR. The factor of 200947903 after adjustment should be ▲ 负 negative CM or PAR estimation error for the maximum amplitude of a particular configuration case , which should be subtracted from the actual estimate. The purpose of using the adjustment factor in this way is to prevent CM or PAR from being underestimated for any signal. Alternatively, the 'negative adjustment factor for smaller amplitudes' can be used. The quantity is compromised as a design (for example, to prevent CM from being underestimated only for specific signals in the configuration) 0 For each configuration case, after any method uses the adjustment factor, the error must be Whether the models are small enough for evaluation. The distribution of measurement errors for specific configurations is given in Figures 5A, 5B, 6A, 6B, 7A, and 7B. Figure 5A Fig. 6A and Fig. 7A show the model described in Equation 5; Fig. 5B, Fig. 6B and Fig. 7B show the model described in Equation 6. Figs. 5A and 5B show the specific case The distribution of the maximum MPR estimation error. In the 5A and 5B diagrams, the distribution is highly quantized due to the topping ((10)7) operation in the maximum MpR calculation. Figures 6A and 6B show the CM estimation error. The intensity of Figure 6 has a narrower intensity than that of Figure 6B. The distribution in Figure 6A and Figure 6B and the distribution in Figures 7A and 7B are substantially continuous. Figure 7A And Figure 7B shows the degree of mis-filament of the material PAR. In order to calculate the maximum MPR 'maximum maximum MPR error should be within the limits of the thief. Can change the ground, between the limit positive and negative CM measurement error within the desired limit The difference is the standard. However, the best is to make the maximum maximum MpR error. In order to use CM Or PAR to calculate the minimum (10) inverse, the difference between the limit positive and negative measurement errors should be within the required range. 22 200947903 For the maximum MPR, the result of using the adjustment factor according to the first-alternative method is that no signal has too high a benefit The bribe, but some signals have too low to beat the MPR. The 郷 赖 赖 _ _ _ results are no signal with a high estimate of the CM, but some of the signals have a low estimate of the CM special 疋, with the largest positive CM The signal of the error will have a correctly estimated CM' signal with a negative CM error of the largest amplitude will have a low estimate of cm due to the difference between the positive and negative CM errors of the maximum field value, other signals will be due to Smaller quantities, with a low estimate of cm /, ° for the minimum MPR' so that (10) the result of the whole is that no signal will have a low estimate of CM or PAR; and - the number has a too high estimate of CM or PAR . In particular, the signal with the most positive CM &amp; pAR error will have a positive estimate of CM or PAR; the signal with the largest amplitude positive CM or error will be due to the difference between the largest positive CM errors. And have an overestimated CM or PAR. There are two possible problems with estimating errors: First, due to deliberate underestimation and two estimates of CM and PAR, the calculated minimum mpr may exceed the calculated maximum. In this case, the WTRU may not be able to select the value of mpR 'this value can guarantee compliance with both VIPR and ACLR requirements such as the 3GPP standard. Second, the greater the difference between the maximum amplitude positive and negative estimation errors, the greater the difference between the minimum MPR obtained according to the method and the minimum MPR obtained from the measurement, thereby reducing the maximum achievable Transmit power. Two possible measures for the above problem are: 1) the above compromise can be used by selecting the replacement adjustment factor, so for some possibly smaller signals 23 200947903 » · Set, unsuitable ride mpol: and U can The specific configuration case is divided into two or more configuration cases, so that the estimation error generated is smaller. For example, if the analysis turns to the specific physical channel, the largest stone item produces the largest estimation error, which is lost (four) to establish Separate configuration. Once the group configuration has been defined and the configuration and calculations have been calculated for all configuration conditions, then it is best stored in a table of 1. Referring to Figure 4, the WTRU 4 is shown. Before each TTI begins transmission, the appropriate configuration is selected to configure the material provided by the Media Access Control (MAC) layer of the transport block. The selection is made in order to define the set of configuration conditions given in Table 1 based on the combination of physical channels used to transmit the transport block, and possibly the E-DPDCH spreading factor.

Regardless of whether the MPR computing device (43 〇) calculates the maximum MPR, the minimum MPR, or both, and if the device calculates the minimum MPR using pAR, Equation 17 is estimated according to Equation 17, Equation 5 is an equation A simplified version of 6: CMl-S Equation (17) where 'N and D are the numerator and denominator of Equation 5 or Equation 6, respectively, and use the CM α term of the configuration determined above. Use Equation 11 to estimate the corpse' but replace CMtoear with iMi^ear and use the PAR a item of the configuration case. Thereafter, CM/_ and/or are converted to the dB form. If the MPR computing device (430) calculates the maximum MPR, the selected adjustment factor (in dB) for calculating the maximum MpR is subtracted from the estimate of the CM in dB form. This gives the 24 200947903 CM value used to calculate the maximum MPR. If the MPR computing device (430) calculates the minimum MPR using the CM, the selected adjustment factor (in dB) for calculating the minimum MPR is subtracted from the estimate of the CM in dB form. The result of this is that the minimum MPR is calculated using the CM value. If the MPR computing device (430) calculates the minimum MPR using PAR, the selected adjustment factor (dB) for calculating the minimum MPR using PAR is subtracted from the estimate of the PAR in dB form. The result is used to calculate the minimum MPR. .

φ If the MPR computing device (430) calculates the maximum mpr, the maximum MPR is optimally calculated from 3GPP. If the mpr computing device calculates the minimum MPR, the minimum MPR is calculated optimally according to the specifications of the power amplifier. If the device calculates the maximum MPR or the minimum mpr, instead of both, then the maximum MPR calculated by § 10 Or the minimum mpr is output as the MPR value used to set the transmission power. A device that calculates both the maximum MpR and the minimum MPR can select an inter-valve value as the MPR value used to set the transmit power and remain consistent with the standards and manufacturer's recommendations. Actually, it is not necessary to fully estimate the value of CM, but only need to detect whether the estimated CM value is higher or lower than one or more threshold values. A Koran threshold test can be provided by modifying Equation 17, as in Equation 18, which has the advantage of avoiding the division operation in Equation 17.

CM linmrT · ϋ < N Equation (18) where ' cu 〇 4 _ a specific critical value;: operator is a critical value; then "if the inequality is true, then the condition _ is greater than the call." 25 200947903 Table 4 is derived from Table 6.1A of 3GPP TS 25.101, which shows an efficient algorithm given in the form of C language, which sets the value of max_MPR-dB and the critical value. Select the linear equivalent of the adjustment factor to calculate the maximum]V1PR. Table 4 No. CM linear T MPR dB 0 10Λ(1.0/10)=1.258925 Not used 1 10^1.5/10)=1,412538 0.5 2 10λ(2.0/10)=1.584893 1.0 3 10α(2.5/10)=1.778279 1.5 4 10λ(3.0/10)=1.995262 2.0 5 Not used 2.5 The special device algorithm used to calculate the minimum MPR is similar to the calculation of the maximum mpr 'depending on the specific number, it is likely that there is only one critical value of CM and / or PAR' and A similar algorithm can be used for the calculation. Returning to Fig. 4, FIG. 4 is a WTRU 400 configured for wireless communication that receives and processes digital user data and control data by scaling circuit 450 to digitally scale the data to set its relative transmit power. The digital user data can be encoded into a channel such as a Dedicated Physical Data Channel (DPDCH) or an Enhanced ❹ DPDCH (E-DPDCH). Control data can be encoded into channels such as the Dedicated Physical Control Channel (DPCCH), High Speed DPCCH (HS-DPCCH), or Enhanced DPCCH (E-DPCCH). The scaling circuit 450 operates in each of these channels. The scaled data is filtered by filter device 460, and the filtered data is converted to analog signals by analog to digital converter (DAC) 470 and transmitted by antenna (Tx) 490 by radio transmitter 480. The WTRU's transmitter has an adjustable (i.e., power controllable) overall transmit power, and the scalable 26 200947903 single channel input' as shown in Fig. 4 is distinguished by the analog gain term and the digital gain term. Other forms of controllable transmission equipment can also be used. According to the procedure defined in 3GPP, the transmission power and the overall transmission power of a single ship are set by the transmission power control unit 44A. The nominal maximum transmit power is converted by the WTRU or mesh slave. The maximum transmit power of the WTRU's God level is in the 3GPP towel. The WTRU may limit its maximum transmit power from the secret maximum mpR or a smaller device-specific minimum MpR, which is a value within the range defined by 3GPP. The transmit power control unit 440 uses a plurality of parameters to set the transmit power. One of these parameters is MPR. In order to calculate the MPR, the configuration is first defined based on the offline configuration parameters obtained by the description of Figs. 2 to 3 above (41〇). For the case after identification, the adjusted estimated CM and/or PAR (420) is calculated based on the following. The MpR (430) is set according to the value for the maximum MPR and/or the minimum MPR. The maximum MpR and/or the minimum MPR are calculated optimally by the processing device 43 based on the adjusted CM and/or pAR estimate (420), or the adjusted mpr estimate. If it is calculated based on the adjustment to mpr, the cm and / or PAR are no longer adjusted. The WTRU 400 may be configured to calculate either or both of the mprs and calculate the minimum MPR from either CM or PAR, such that any combination may be selected for use. The estimate of CM and/or PAR may be a function of a pre-estimated value 'this value is represented by the alpha term, or may be a function of the desired correlated channel power (/3 term) of the transmitted signal, where The specific function 疋 is based on the specific entity parameter of the number. The adjustment to this estimate can be a pre-calculated term from 27 200947903 4. m. In order to calculate one or two mprs in the WTRU 400, first, at 111, with the configuration example of the signal, the channel weight of its MAC-es is point c = 15 6 'Ahs = square hs / ^ fmaxMACK and = several =15/15 ' Aed, = 凡 = 95/15. An example of this signal is signal u in R4_060176, 3GPP TSG RAN 4 Meeting #38. Second, by using digital scaling, the WTRU 4〇〇 calculates the following digital channel weights: no, 22, ySd = 9, y3hs=22, Κ2, κ〇〇. These weights take up the desired ratio and their sum of squares is the required constant. ❿ Second, by using 0: CM and yg in Table 3, the estimate of the digital channel weight and CM(10)ar is calculated using Equation 5, which is 1.0589, which is equal to 2.2487dB. Fourth, the CM estimate is adjusted by subtracting 0.54 dB, yielding approximately -0.29 dB. Alternatively, in the linear form, the estimate is adjusted by multiplying 〇 〇 589 and 0.883 to produce approximately 〇 93. Fifth, the linear adjustment estimate for CM is 0.94 less than the first linear threshold in Table 4; therefore, the maximum MPR is calculated as 〇 dB. Summarized by Figure 8 represents a process 800 for setting transmit power by the WTRU 400 calculating mpr 〇. The adjustment factor and the pre-calculated threshold (810) are determined and processed in the offline processor depending on the configuration. These values are stored in the WTRU' to help the WTRU 4〇0 identify the configuration (820). Once the configuration is determined, the adjusted estimated CM and/or PAR (830) is calculated. By using these adjusted estimates, the maximum MpR and minimum MPR (840) are calculated and mpr is set. The MpR, theoretical maximum power and power control commands are combined (850) to set the transmit power (86 〇). 28 200947903 Although the most popular reading of the mosquito combination, the characteristics and the application of the tree (4) Γ&quot; (4) each-transition and parts are not in the best real 1 = can of the 敎 TM, each of the special parts and components All can make money without the tree and its components

2 is called _ combination square wire fine. The method or the flow 2 provided by the present invention is carried out by the electric thief (four) brewing, soft body or fine body. The electric mouth program, software or lemma is tangibly contained in the computer readable storage. Examples of 'computer-readable storage devices' in the medium include read-only memory (ROM), random access memory (RAM) 'scratch registers', cache memory, semiconductor memory devices, internal hard disks, and mobile magnetics. Magnetic media such as sheets, magneto-optical media, and optical media such as CD-ROM discs and digital versatile discs (DVDs). Suitable processors include, for example, general purpose processors, special purpose processors, conventional processors, digital signal processors (DSPs), multiple microprocessors, one or more microprocessors associated with a DSP core, control , microcontroller, dedicated integrated circuit (ASIC), field programmable gate array (FpGA) circuit, any other type of integrated circuit (1C) and/or state machine. The software-related processor can be used to implement a radio frequency transceiver for a wireless transmit receive unit (WTRU), user equipment (ue), terminal, base σ, radio network controller (RNC), or any host computer. The WTRU may be used in conjunction with modules implemented in hardware and/or software, such as cameras, camera modules, video phones, speaker phones, vibration devices, speakers, microphones, television transceivers, hands-free headsets, keyboards, Bluetooth 8 Module, FM radio unit, liquid crystal display (LCD) display unit, organic 29 200947903

[Simple description of the map]

2 is a block diagram of a simplified version of an offline processor; FIG. 3 is a detailed flowchart of an offline initial configuration process; FIG. 4 is a block diagram of a WTRU according to an embodiment; + 5A and 5B It is used for the model of Equation 5 and the two sides of the equation (4) model respectively, the green maximum (10) error error age cloth; the first team diagram and the 6B diagram are the model for Equation 5 and the model of Equation 6 respectively. The two graphs represent the distribution of the CM estimation error; the 7A and 7B graphs are used for the model of the equation $ and the ❹ model of the equation 6 respectively to show the 'surface PAR estimation misplanar distribution; and Figure 8 is a flow chart of a method of setting transmit power. [Major component symbol description] 110 120, 400, WTRU 125 base station wireless transmission receiving unit processor 30 200947903 126 receiver 127 transmitter 128 antenna 200 offline process 300 offline initial configuration process 440 transmission power control unit 450 scaling circuit 460 filter Device 470, DAC analog to digital converter 480 radio transmitter 490, Tx antenna CM cubic metric MPR maximum power attenuation PAR Hua ratio

31

Claims (1)

200947903 * * VII. Patent application scope: 1. , · ' ', line transmission receiving unit (10) is implemented in the device for calculating a maximum power attenuation (MPR), the device includes: according to ', has the same phase (1) and positive The characteristics of the received signal in the (9) part are pre-defined from the - group; the cubic metric (CM) of the estimated ten is adjusted by a pre-configured adjustment factor. Based on a transmit power amplifier cubic gain term, and the estimated CM is stored in the wtru from an initial configuration; the mpR is calculated based on the adjusted estimated CM; and the MPR is used to set transmit power; Wherein the estimated CM is calculated as one of the following: a square stone term, a single/5 weighting, and a weighted sum of the cross-inclusions within the component, wherein the caller indicates an intensity of the signal; or the square stone term and the component A weighted sum of tens of thousands of items, which does not indicate an intensity of the signal. 2. The method of claim 1, wherein the calculated MPR is set using a calculated MPR with a nominal maximum power limit and at least one power control command. 3. The method of claim 1, wherein the configuration is a channelization code of the received signal and an in-phase (I) channel code of the received signal and an orthogonal channel The (Q) code is defined by a channel weight. 4. The method of claim 1 includes the setting of an adjustment factor to a maximum amplitude positive error for a configuration of a channel. 5. The method of claim 1 includes the setting of an adjustment factor to a maximum amplitude positive error of a configuration of a channel 32 200947903. 6. The method of claim i, further for minimizing the maximum MPR tilt error, the MPR determined by the branch; and determining an estimate for each of the signals in the configuration. The MPR and an actual, calculate an MPR error by subtracting the estimated ancestor from the actual tenderness. ❹ 7. The method of applying the ancient, i ^ ^ , as described in claim 6 of the patent, further includes selecting the adjustment factor value to have a signal having an MPR error of less than zero. 8. The method of claim 6, further comprising selecting the adjustment factor value to be less than a value having a signal having an MPR error less than zero. 9. The method of claim 1, wherein the method of setting an adjustment factor is a maximum amplitude negative error of a configuration. ❹ 33