TW200901692A - Quadrature modulation rotating training sequence - Google Patents

Abstract

A system and method are provided for transmitting a rotating training sequence. A rotating training signal is generated in quadrature modulation transmitter. The rotating training signal includes training information sent via an in-phase (I) modulation path, as well as training information sent via a quadrature (Q) modulation path. The rotating training signal may be generated by initially sending training information via the I modulation path, and subsequently sending training information via the Q modulation path. The training information sent via the I modulation path may include a first symbol having a reference phase (e. g. , 0 degrees or 180 degrees). Then, the training information sent via the Q modulation path would include a second symbol having a phase that is ?? 90 from the reference phase.

Description

200901692 IX. DESCRIPTION OF THE INVENTION: FIELD OF THE INVENTION The present invention relates generally to modulation of communications, and more particularly to orthogonal modulation for generating a rotational tuning signal for use in a receiver System and method for tuning channel estimates. [Prior Art] Fig. 1 is a schematic block diagram of a conventional receiver uranium terminal (prior art). A conventional wireless communication receiver includes an antenna that converts a light-emitting signal into a conductive signal. After some initial filtering, the conduction signal is amplified. Assuming a sufficient power level is given, the carrier frequency of the signal can be converted by mixing the signal with a local oscillator signal (downconverting). Since the received signal is quadrature modulated, the signal is demodulated by separating it before combining the Q and Q paths. The analog signal can be converted to a digit # for a baseband processing after a frequency conversion using a analog-to-digital converter (ADC). The process can include a Fast Fourier Transform (FFT). There are a large number of errors that can be introduced into the receiver to adversely affect channel estimation and recovery of the intended signal. Errors can be introduced from mixers, filters, and passive components such as capacitors. These errors can deteriorate as they cause an imbalance between the 1 path and the 卩 path. In an effort to estimate the channel and thus eliminate some of the errors, the communication system may utilize a message format including a calibration sequence, which may be a repeated or predetermined data symbol, for example, by way of example With an orthogonal frequency division multiplexing (〇FDM) system, the same IQ constellation point can be repeatedly transmitted for each subcarrier. 129716.doc 200901692 In an effort to preserve the power of a portable electric OFDM system using only the 乍 device, some of the excitations in the constellation are individually tuned for calibration. For example, the direction (for example, the Q path). Direction (for example, 1 path) without using another tone to use. Should, the main side of the 'R-type one-way adjustment can also rely on the pilot of the star; H /, will - a single modulation channel is scrambled and not spinning, and does not provide energy for the orthogonal channel. (iv) When the occurrence of an orthogonal path other than the power-carrying m-bandwidth system mentioned above, the noon preservation sequence will result in a one-to-one deviation channel estimate that can be used to estimate the leaf value. Quasi, but trace the 1 path in the direction of the orthogonal direction. The 1Q constellation _ is provided for orthogonal unbalance. It is preferable to distribute any non-equilibrium phase 4 between the two channels. $2 Series-Illustrated Receiver The side of the orthogonal unbalance (previous technique) is not: Fig., although not shown, the transmitter side unbalance is similar. It is assumed that the Q path is a parameter. The impact waveform is (3) coffee (4), where the channel phase The Q path is downconverted by means of -sin(4). With (i+2e)c〇s ((10) gamma path down conversion. 2Δ_ system hard unbalance, which is divided into J system phase error and - amplitude error. Per path Low-pass filters Η! Q different filters will introduce additional amplitude and phase distortion. However, these extra The distortion moves within 2 Δ and 2 ε. It should be noted that the two filters are actual and affect the ten states and ^ in exactly the same way. Suppose the errors are small: (l+2e)cos(wi+ 2A^)«(l+2e)cos(&gt;vi)-2A9.sin(&gt;v〇v The first component of the right-hand side of the equation C〇S〇〇 is a slightly scaled ideal I path. Second The component -2Ap.sin〇i) is a small leak from the q path. After 129716.doc 200901692 After the down-conversion of the impulse waveform: In the I path: (1+2e)c〇s(^)+2e sin( 0) In the Q path: sin (〇. These errors lead to misunderstanding of symbol positioning in the quadrature modulation constellation, which in turn leads to incorrect demodulation of the data. [Invention] Wireless communication receiver is prone to appear Errors due to lack of tolerances in hardware components associated with mixers, amplifiers, and filters. In quadrature demodulator, these errors can also cause unbalance between the path and the Q path. A calibration signal can be used to calibrate the receiver channel error. However, a calibration signal that does not simultaneously excite both the I path and the Q path cannot resolve between the two paths. An unbalanced problem. Accordingly, a rotational tuning sequence for transmitting a quadrature modulation is provided. A quadrature modulation transmitter generates a rotational tuning signal. The rotational tuning signal is transmitted via an in-phase (1) calibration path. Tuning information, and tuning information sent via a quadrature (Q) modulation path. The quadrature modulation is transmitted simultaneously with the calibration signal or generated after the calibration signal. The rotation adjustment signal and the quadrature modulation communication data. For example, the rotation adjustment signal can be sent by first adjusting the calibration information via the I modulation path, and then transmitting and adjusting via the q modulation path. Information is generated. More specifically, the calibration information transmitted via the I modulation path may include a first symbol having a reference phase (eg, 〇. or 18 〇. ^ Then, the calibration information transmitted via the Q modulation path will include a second symbol having a phase that differs from the reference phase by ±9 〇. 129716.doc 200901692 ', a method, a system for generating a rotational tuning signal, and other variations of the invention Other embodiments of the present invention will be described with reference to the drawings. In the following, numerous specific details are set forth in the <RTIgt; The embodiments may be embodied in the form of a block diagram in the form of a block diagram to facilitate the description of such embodiments. The terms "component" and "system" and similar terms are used to refer to a computer-related entity that can be a combination of hardware, firmware, hardware and software, software, or a system. For example, a 'component can be (but is not limited to, a method running on a processor, a processor, an object, an executable file, a thread, a program, and/or a computer) For example, an application running on a computing device and the device itself can be tied to - components ... one or more components can reside in - processing and / or - threads, and - components can be limited a computer and/or distributed between two or more computers. Further, such components can be executed from a variety of computer readable media having various data structures stored thereon. / or remotely push _, 2 &gt;, 裎 裎 仃 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Another component of the decentralized system 10 interacts with, and/or is a component of a component that interacts with other systems via a network (eg, the Internet). The following will include a number of components, modules, and the like. The system to 129716.doc 200901692 Various embodiments. It should be understood and appreciated that different systems may include other components, modules, and the like, and/or may not include all of the components, modules, etc. discussed in connection with the drawings. Figure 3 is a schematic block diagram of a wireless communication device 3" having a system for transmitting-rotating a calibration sequence. The system includes a radio frequency (RF) transmitter 304, which is in the line 3〇6&amp; and 3〇61) have a round entry for the party information, an in-phase (1) modulation path 3〇8, an orthogonal (Q) modulation path 31〇, and – for combination Combiners 312 from the modulated path 3〇8 and the modulated I path 310 respectively. Although an rf transmitter is used as an illustration of an example of the present invention, it should be understood that the present invention is applicable to any month. Communication media for orthogonal modulation information (eg, wireless, wired, optical). The I path and the Q path are alternatively referred to as a 丨 channel and a 〇 channel. The combined signals are supplied to amplifier 32A on line 318 and ultimately to antenna 322, which radiates at antenna 322. Transmitter 3〇4 can be enabled to transmit a message with a rotational tuning signal. A rotary tuning L number (which may also be referred to as an orthogonally balanced tuning signal, balance tuning, balanced tuning sequence, or non-deviation tuning signal) is transmitted via the modulation path 3 08 Tuning information and tuning information sent via the q modulation path. Transmitter 304 also transmits orthogonally modulated (unscheduled) communication material. In the heart sample, the orthogonally modulated communication data is transmitted after the transmission adjustment sequence is transmitted. In another aspect, the chirp signal and the communication data are simultaneously transmitted in the form of a pilot signal. The system is not limited to any particular temporal relationship between the calibration signal and the orthogonally modulated communication material. 4A to 4D are diagrams showing the signal of the 129716.doc 200901692 signal with the quadrature modulation of the communication data. Considering FIG. 3 and FIG. 8 , in the first aspect, the calibration resource is first sent via the I modulation path 308 ' ° θ ς 1 η smoke mode π ρ + ... and then the Q modulation path =: VT sends the rotation adjustment signal . That is to say, the adjustment letter says... Λ 'Bian Ru-- only repeats the symbol series through the old variable path 3〇8, and then connects 螬^” followed by continuation—only (four) Q modulation road (four) 0 transmission symbol or repeat symbol series Transmission. As an alternative but not shown, the calibration information may be sent via (10) variable (four) 310 and then (four) path (10). In the case of transmitting a single symbol symbol alternately through the path, the transmitter is more likely to The variable path sends a rotational tuning signal having predetermined tuning information. For example, the first symbol can always be (1, 0) and the second symbol can always be (0, !).

The above-mentioned rotational tuning signal (which is initially transmitted via the η modulation path only) can be implemented by supplying energy to the m-path but not supplying energy to the q-modulation path 310. After transmitting the calibration information via the modulation path, the transmitter transmits a rotation adjustment signal by the modulation path through which the energy is supplied to the modulation path. Figure 5Α and 5Β are as in the orthogonal constellation diagram. A graphical representation of the rotated tuning symbols presented. Considering Figures 3, 4A and 5A, the transmitter 304 generates a rotational tuning signal by transmitting a first symbol having a reference phase via the chirping modulation path 308, and via Q tuning The variable path 3 1 〇 transmits a second symbol having a phase (reference phase +9 〇.) or (reference phase _9 〇.). For example, the reference phase of the first symbol can be In this case, the phase of the second symbol can be 90. (as shown) or _9〇. (not shown) 129716.doc 10 200901692 However, it is not necessary to pass the tone only as described above. Variable path 3〇8/3丨〇 to the parent for symbolic transfer to obtain symbol rotation. In fact, the 'first symbol can be transmitted through the (only) 1 (or Q) modulation path, and the transmitter can transmit the calibration information through the 〗 〖 and 〇 6-week change paths, and combine the 丨 and Q modulation signals to The first symbol is supplied. As another example, the transmitter can simultaneously transmit the calibration information through the 丨 and Q modulation paths, and combine the 1 and Q modulation signals to supply the first symbol, and by using only Q (or I) The modulation path is used to obtain the second symbol. As shown in Fig. 4B, the f&quot;' nuisance symbol can also be rotated by supplying symbols by means of I and Q components, respectively, as is usually associated with quadrature modulation. 3 The calibration information can be sent through the I and q modulation paths 3〇8/31〇 at the same time, and the σ I and Q modulation 彳g numbers are set to supply the first symbol on the line 3丨8. For example, the first A symbol can occupy the position of the constellation at 45. As shown in the figure, the transmitter will transmit the adjustment p汛 through both the 〗 and 卩 modulation paths, and combine the ! and Q modulation signals to supply the second symbol. For example, 'the second symbol will be rotated to ~45. The position is orthogonal to the first symbol. 45.). By) a dagger, in a medium can persons, ~, as in 'a rotational adjustment minimally comprises a symbol having a phase difference of 90 two. The sequence of symbols. However, the Xiao system does not: a system that uses only two symbols. In general, an even number of symbol systems are preferred and such that one half of the symbols can be produced by modulating the path and the other half is produced by using a Q modulation path. In the sequence of two symbols, & + I am at 锉. ..., to perform a 90 between each symbol. The second is that there is no phase of a specific order between the payouts. In one aspect, the symbol of the + is on average different from the sign of the other half. . Example 1297I6.doc 200901692 For example, an ultra-wideband (uWB) system utilizes six symbols transmitted prior to transmission of a communication material or _ beacon. Therefore, 3 consecutive symbols can be generated on the continuous symbol 'and then on the Q modulation path. Use this procedure' to simply short the symbols before the Q channel returns to sleep. The channel continues with 3:6 as an illustration of an example framework for carrying messages with a -rotation tuning signal. Considering Figure 3 and the grievances, the transmitter 3〇4 is operated according to the OSI model. Here, in the main layer model, the transmitter is associated with the physical layer (PHY). As shown in the figure, "solid", 'Bei Bu, the transmitter 3 04 sends a physical layer (ρΗγ) signal class containing a pre-position 602, a header 604, and an effective g Gong &amp; The transmitter sends a rotation adjustment signal in the header coffee head, and transmits the orthogonally modulated communication data in the payload _. Many communication systems use a relatively slow communication data that is being processed by the father. Rate transmission of beacon information while preserving a higher data rate for (unscheduled) shipments. The network is operated according to the IEEE 802.1 1 protocol. An example of such a system is one of these systems. It is expected that the wireless communication device is a battery operation. It is desirable that these devices operate in the _&quot;sleep&quot; mode when the information is not actually transmitted. For example, the master unit or access, &quot; broadcast is relatively simple The low data rate beacon signal is responded to by a dormant unit. The pilot signal can be regarded as a tuned signal—the syllabus—in particular, although each subcarrier is typically utilized (all N in the communication bandwidth) Frequency) at the top of the data The tuning signal is transmitted, but the pilot frequency modulation system and the data transmission of the quadrature modulation of Zhu Xing are transmitted together on a subgroup (retained) frequency. In a system using OFDM (for example, UWB), this reservation is retained. The group consists of only the first tone of the pilot. That is, the pilot tone is 1297l6.doc 200901692 and the data is related to the remaining N_p frequencies. The calibration signal is similar to the pilot signal in the information content of the transmitted data, often scheduled. Or "Knowledge" data, the material receiver calibration and channel measurement. When receiving communication (non-scheduled) data day temple, there are 3 unknowns: data itself, channel, and noise. The receiver can not be used for noise. Calibration, because the noise will change randomly. The channel is generally associated with delay and multipath

Measurement. For relatively short time periods, errors due to multipath can be measured when using predetermined data (such as tuning or pilot signals). Once the channel is known, this - the measured value can be used to remove the error in the received communication (unscheduled). Therefore, some systems supply a calibration signal to measure a channel before data decoding begins.

It is associated with p frequencies. However, for example, the channel may change as the transmitter or receiver moves in space or clock drifts. As a result, many systems continue to send more, known “data” and “unknown” data to track slow changes in the channel. For purposes of illustrating the system, it will be assumed that the pilot signal is a subset of the more general tuning signals. That is, as used herein, the tuning signal is related to the initial tuning sequence, and the -UWB or 802 1 1 system t is referred to as the pilot tuning sequence of the pilot tones. Another—select, term, start tuning, and “tracking tuning” or “pilot tuning” are all types of tuning signals. Then, in one aspect, after rotating the tuning signal, Transmitter 3 (10) transmits a message in which the quadrature modulated communication data is a beacon signal at a beacon data rate. That is, the beacon signal used by many communication systems can be transmitted with a rotational tuning signal. In addition, after a rotation adjustment signal 129716.doc -13 - 200901692, the transmitter 304 may alternatively or additionally transmit at an overnight data rate greater than the beacon data rate - with quadrature modulation communication In the data, in the heart, the transmitter can send a message with the combination of rotation and non-rotation adjustment "Tiger. For example, after an unbalanced message, the transmitter 304 can include a multi-cluster message with a balanced message. For the sake of brevity, the phrase "balanced message" is used to describe a message that includes a rotational tuning signal and a communication data that is tuned to change. An unbalanced message system - including - a message of a non-rotating calibration signal - sends a calibration message via a modulation path but is transmitted, for example, via a Q modulation path. In this aspect, the unbalanced message also includes a message format signal that is embedded in, for example, a header to send a balanced message (with a rotating falsification) after the 5 Hai unbalanced message. The unbalanced message contains orthogonally modulated communication data that can be transmitted in the payload after the message format signal. However, the system is not limited to any one-specific temporal relationship between the weighted nickname, the message format signal, and the quadrature modulated data. For example, the unbalanced message can be a beacon signal or an initial tuning message. Alternatively—select, the unbalanced message can be sent after the balanced message, or the unbalanced message can be dotted with the balanced message. Considering Figure 4C, many communication systems, such as compliant 〇8〇2.11, utilize a plurality of simultaneously transmitted subcarriers. In this aspect, the rotational tuning signal can be enabled in the form of a pilot signal. For example, ρ rotating pilot symbols can be generated, as well as (Ν-Ρ) orthogonally modulated communication data symbols. Each rotated pilot symbol contains 9 turns per symbol change. Tuning information. Since 129716.doc -14· 200901692, the balanced message with a rotation adjustment signal is transmitted by simultaneously transmitting N symbols. In other aspects, less than P rotated pilot symbols are utilized because some pilot symbols are non-rotating symbols. Considering FIG. 4D, in one of a plurality of subcarrier systems, the rotation adjustment k number includes adjusting the subcarriers by using the Ϊ modulation path instead of the Q modulation path as subcarriers. The symbol produced at the same time. In addition, the calibration signal uses the tuning information transmitted via the Q modulation path instead of the j modulation path for each subcarrier. Then, after the calibration information is generated, the IQ modulated communication data is generated for 〇 and /· subcarriers. In one aspect, the sub-carriers of the sub-group include, paired subcarriers or &quot;paired tones&quot;, which are a pair of frequencies having a frequency of -f and a frequency of +/. The sub-group y• medium tone can also be paired. The 戎_/ and +/ 调 调 pairs will help to achieve the channel adjustment, Q channel adjustment and rotation adjustment. The subcarrier calibration sequence is not rotated by 90. The system will still be considered to generate a rotational tuning signal because a channel estimate averaging technique can be used at the receiver to average adjacent subcarriers. Then, the total effect of the adjacent non-rotating 丨 and Q tuning symbols is rotated and adjusted. In one aspect, the tuning signal is designed so that the odd-numbered 5 subcarriers are transmitted through The non-rotational adjustment of the I modulation path (channel X) is transmitted, and the subcarrier of the even number is used by the Q modulation path (channel X+90.). In another aspect of the present invention, Atm The wireless communication device 300 of FIG. 3 can be viewed as a component 308/3 10 that rotates a calibration signal using I and Q modulation paths, and # ^ Component 308/3 for generating quadrature modulated communication data 10 μ如μ ★ 7 1 text 'tuning signal can be sent simultaneously with the communication data 1297l6.doc •15- 200901692 pilot symbol, or The communication data can be sent after the transfer of the weighting signal. In addition, the device 3A includes a component 320/322 for transmission as a RF pass.

3 〇 用 交 交 交 用于 交 交 交 交 交 交 交 交 交 交 交 交 交 交 交 交 交 交 ― ― ― ― ― ― ― ― ― ― ― ― ― ― 交 交 交 交 交 交 交 交 交 交 交A message format signal indicating that a balanced message (with a _rotation adjustment signal) will be transmitted after the unbalanced message is received; and the quadrature modulation communication data is to be transmitted.

Fig. 7 is a schematic block diagram showing a processing device for transmitting a quadrature modulation rotation tuning sequence. The processing device 7A includes a path modulation module 702 having on line 704 - an input for receiving information and a line 706 for receiving! The input of the control signal. The path modulation module 702 has an output on line 708 to supply the modulated information. A Q path modulation module 710 has an input for receiving information on line 712 and an input for receiving a Q control signal on line 714. The Q path modulation module 710 has an output on line 716 for supplying Q modulated information. A combiner module 71 8 has inputs on lines 708 and 71 6 for receiving the I and Q modulation information, respectively, and an output at line 720 for supplying a quadrature modulated RF signal. . A controller module 722 has outputs on lines 706 and 714 to supply I and Q control signals, respectively. The controller module 722 uses the I and Q control signals to generate a message having a rotation adjustment signal, the rotation adjustment signal including the calibration information transmitted via the I modulation path and the calibration information transmitted via the Q modulation path. And the communication data of the 129716.doc •16- 200901692 variants. The functions performed by the modules mentioned above are similar to those performed by the apparatus shown in Figure 3' and will not be repeated here for the sake of brevity. As explained above, the rotary tuning signal of the present invention can be used to modify the conventional system of poetry adjustment in the effort of conserving power using only the perimeter-variable path. Such a system can be modified by temporarily enabling (10) variable paths during the second portion of the tuning sequence. This solution uses only a little more power, while supplying energy to both the [and Q channels during the tuning sequence. Alternatively, an unbalanced message with a non-rotating calibration signal can be used for the beacon, and a balanced message with a rotational tuning signal for the high data rate. This solution may require a receiver to be programmed to correlate a rotationally tuned signal message with a high data rate with a beacon-unbalanced message. The W-receiver &quot;guess&quot; It is necessary to 'subtract the person to the predecessor to inform the receiver of the type. In the variant, a conventional unbalanced message can be used as the first burst in a multi-cluster wheel. With multi-cluster transmission, It can be easily notified in each type 2 that the transmitter will appear in the subsequent bursts of the sequence of the sequence, the η-system-unbalanced message, in which all = clusters are balanced messages. The message can be activated as needed, only if (if) it is supported by both the transmitter and the receiver. The invention can be reversely compatible with existing devices. Another solution (which is not Reverse compatibility) is to modify all calibration sequences, 129716.doc 200901692 package 3 调 calibration sequence 'to adjust the sequence is always balanced. In this variant 'receiver does not have to operate in two different types Tuning signal example 'The analysis of these improvements is provided below. These improvements can be obtained by adding the rotary tuning signal to the 'two-balanced theory' in the uWB_◦ chest system. Usually, the calibration sequence system - the symbol of repetition : This means that the same constellation point is repeatedly transmitted for each_subcarrier.

Exciting a unique direction (eg, path) in the constellation diagram of the 4 constellations without inducing another direction (eg, 'Q path' has been presented in the prior art section with errors associated with such systems. Figure 8 is a diagram For the diagram of the two different phases θ of the shock waveform shown in Figure 2 and the non-equilibrium constellation diagram, the phase unbalanced system 2 △ (four) " (does not have amplitude non-equilibrium). It should be noted that at these angles is 0 And 90. The non-equilibrium is the strongest' and almost disappears when the angle is 45. and 135. This is because the impact waveform = the phase is located in the middle between the called paths, the non-equilibrium is in the Μ. The angle of the δ-Hui impact waveform depends on both the data and the channel, and can take any value between 〇 and 36〇.] σ The angle of the waveform is such that all the calibration symbols are aligned with the direction (Θ一〇) , then the 1 direction will be accurately estimated, the error is 0. But Q: the direction will deviate from Η). On average, in Gauss 'this will lead to excessive error in the constellation point in the Q direction. On the other hand The angular balance of the impact waveform almost disappears. (Between the 1 and Q 'The non-Figure 9 is a diagram of the number 129716.doc •18- 200901692 number that the phase unbalance is not plotted on the phase of the impact waveform. The solid line on the lower graph shows the case where a repeat calibration sequence occurs. The phase is unbalanced. The dotted line shows the rotation tuning sequence. In AWGN, and for the uncoded QpsK of BER^1〇-5, the non-equilibrium between 〇〇 and 1〇〇 has 0 dB and 1.5. Loss between dB (depending on the phase of the impulse waveform) Analysis can begin with simpler problems in time domain modulation, such as time division multiple access (TDMA) or code division multiple access (CDMA) in AWGN. All symbols of a calibration sequence are located on the axis (channel 1). After transmission through an aggn channel, the axis can be rotated to a direction 相 (depending on the channel phase) in the orthogonal 21) plane. By aligning all the calibration symbols with a direction X, the direction X is also correctly estimated, and any data symbol in the direction of the phantom is located on the correct axis (after rotation). However, the sign in the orthogonal direction γ will deviate from the ideal position by 2Δ&lt;. It will result in significantly larger errors. Since all the adjustment symbols are on the X-axis, the channel estimate is (X). ', the error angle in the X direction (X)_H = 〇. The error in the Υ direction is (γ)-90, Η=2 Δ. This analysis assumes that the calibration sequence is rotated in a constant manner to equalize the number of I and Q channels. In this case, the average channel has a phase of ''tongue, which is no longer specifically aligned with the X direction. It will also align with the gamma direction in half the time. The channel estimate s ten value is now Η = [angle (χ) + angle (γ) _9 〇 °] / 2. The error angle in the X direction (χ) - Η = -2 △ for /2. The error angle in the Υ direction (Υ)_9〇°-Η=2Δρ/2. The dashed curve in this illustration shows the phase imbalance in each direction.虚曲 1297i6.doc -19- 200901692 The line is roughly 0.5 times the real curve. Now the positive loss in half of each direction ... corresponds to 5 on each axis. The biggest completion ^ balance what. Maximum unbalanced and tied to 0.5 dB. Benefits vary from 〇 to 1 dB. It should be phonetic, 曰 In the presence of an L〇s channel (AWGN), most carriers can be aligned at the same phase, and the column can be lowered by one. In the same situation, the rotation adjustment St: level is only 〇.5 guilty, its gain is 1 guilty. “, η frequency offset residual will change the phase of the impact waveform, then the phase unbalance will change to 10. The error will be smoothed. But for high data rate, the diversity may not be enough to compensate for the rule hits. Carrier overshoot. The effect on high data rate is more important. % The implementation of a rotational tuning sequence does not necessarily imply any large hardware complexity in the receiver or transmitter. Twisting 901 is performed by exchanging other channels and performing symbol reversal on them. This operation can be done in the time domain (if all frequencies are rotated in the same way) or in the Fourier domain (which is more general). Using the IQ imbalance compensation (c〇mpensati〇n 〇f IQ ^ 〇 FDM systems) in Jan Tubbax et al. in the 2003 IEEE publication, the author mentions the imbalance between the channels in order to Each of I and q obtains an unbalanced Δ (ρ &amp; ε instead of having an unbalanced 2 Δρ and 2 s on the I channel. In the absence of any channel and noise, the orthogonal unbalanced distortion is received. letter The transmitted signal can be expressed as, γ = αχ + βχ 129716.doc -20- 200901692 where X is a composite transmission signal, X* is a complex conjugate, y is a composite received signal, and αΜ and ββο are orthogonal The complex of non-equilibrium distortion characterization, which is given by a = cosA^+y'e. sinA^ β^=ε. cosA^-y'sinA^) is received when it is equal to 1 and 分别 respectively The signal is consistent with the transmitted signal. This more formal description will be used to review the time domain volatility y in AWGN. The received signal system cx before the unbalance is in the absence of noise but the awgn channel with the coefficient c, and after the unbalance, it is fortunately y = acx + βο χ the adjustment sequence of the deviation is sent The calibration sequence consisting of the symbol w, that is, always aligned with the unique direction of w in the 2 〇 plane, obtains 2 possible received symbols y = acu+ βο* u* y = -acu-fic u For the sake of simplicity, without loss of generality, suppose the vector w is a simple expression to estimate the channel, and apply a digit to +w* and - respectively to obtain the frequency estimate * *2 ac + pc u in the left hand of the addition operator On the side, the channel (or approximation) is obtained, but a noise or deviation occurs on the right hand side. This noise does not disappear as more and more tuning symbols are averaged: it remains as if only white noise disappeared. Therefore, if a calibration sequence that is substantially aligned with the symbol w is transmitted, the estimated value of the channel deviates. 129716.doc •21 · 200901692 When the transmission of the data is started, the metric of the entry-Viterbi calculus is obtained by multiplying the complex number of channels (the matching wave of the channel) by the received signal. Therefore, Π metric = [α c + ^ V2 / V = / « cx + AcV] and after eliminating some secondary terms metric io ^ lcl ^ + c ^ HV + c ^ Wx upper 度量 metric A A component of the brother is ideally a positive real scalar proportional to the channel energy, which increases the original constellation point. However, the first and second components of the formula are undesired noises created by the deviation. The noise variance is consistent, and is equal to w\2m2\c\4\x\2. In the absence of other noise sources, the signal-to-noise ratio (SNR) is SNR=|a|¥|c|4|x| 2/2|a|2|yS|2|c|^|^|2 ^\α\2/1\β\2 «0.5/[ε2+△妒2] This noise is not distributed with white Gaussian noise However, if different frequencies are used (channels ~ get various symbols (multipath in CDMA, or interlace, etc.), after combining the symbols, 'get a slow convergence of white Gaussian noise. This • SNR may be The system is 10 to 20 dB. For data rates running at low SNR, • this additional noise may not be a problem, but for high data rates operating at high SNR, this additional noise has a significant impact. Non-deviation tuning sequence If the entire calibration sequence is sent in the direction of the orthogonal direction of the ( (labeled as ... transmitting half of the symbol ' instead of aligning with the unique direction of W, then 129716.doc -22- 200901692 obtains the average of the channel estimates For: ac+βο* (u*2 + v*2)=ac Since the two simplex vectors are orthogonal, +~, the right-hand side deviation disappears. Now, the metric is metric = 丨α|2丨c|2x + a household|e|2x* The orthogonal unbalanced noise - half has disappeared. The SNR (when no noise occurs) is improved by 3dB. SNR=|a|2/|^|2 ^\/[ε2+Αφ2]

OFDM In OFDM, the formula of the received symbol is slightly changed, but the entire OFDM symbol must be treated as a symbol vector, y = FFT{aIFFT(cx) + ^[IFFT(cx)]*} where the vector is indicated in bold And where the (.) operation is the element-level product between the two vectors. The channel e is the Fourier domain version of the frequency. This equation can be rewritten as y=ac-x+^(c.x)m* = aC.x^(Cm'Xm*) where ^ is the vector that is mirrored on the subcarrier. The only contributors to the received symbols with a frequency of +/ are the equalization frequency +/ and the channel and symbol of the two equalized subcarriers and _ are isolated, and the received symbols of the subcarrier V are written as y~(^ Cx+βCm* x * where index (4) shows the channel with frequency _7. The main difference between this formula and tdma or 129716.doc -23 - 200901692 系 is now at different frequencies (ie frequency _/ Channels and signal creation. If the equalization frequency has a much larger: channel or much stronger signal' then this can have a significant effect on a particular received symbol. Therefore, it may be more problematic in OFDM. The school sequence pseudo-β is also frequency-transmitted by the pilot tone system u, and the pilot tone frequency adjustment system um 'the frequency deviation transmission sequence does not correctly rotate the pilot tone tone, so it is introduced in the channel estimation value. A deviation.

Um*U then the reception metric at frequency +f can be written

Degree s value (+/)=ia|2|c|2x+a»w ～miK The fourth (with noise) item in the above &amp; formula can no longer be ignored because the channel k «丨2 may be extremely strong . The noise item may now be dependent on the strength of the frequency channel and may be significant. The frequency_, acting as a jammer for the _ confusing viterbi decoder, can sometimes interpret a weak metric with sufficient interference as a good metric. Non-deviation tuning sequence For the non-deviation tuning sequence, the channel estimate is ac, and 2 noise terms are eliminated from the equation to obtain the metric (+/Ha|2|c|2x + a&gt;c* The Cw*X// improvement is obvious. However, it is difficult to assess the benefits of 480 megabits per second (Mbps) data rate in UWB-OFDM before performing simulations in an actual channel model. It should be noted that for this level Data rate, it is expected that these devices have a LOS or an approximate LOS, and therefore the frequency is not expected to be 129716.doc •24-200901692 but the channel variation of -3 dB or more at -f is too large It is possible that the orthogonal non-equilibrium orthogonal unbalance of the emitter also appears on the transmitter side and is added to the missing #

Right (X and β, labeled as the non-equilibrium coefficient on the transmitter side, the transmitter is called 马Ma ζ^α'χ+β'χ* and after channel c and distortion α, β, the receiver obtains y = Acz+fic*z*

^(αα,α+ββ'^Ίχ + (αβ'〇+ α&gt;*β〇*)χ* = a(c, c*)x + b(c> 〇*)χ* The above analysis applies to TDMA/ CDMA, but if you use ^ to replace / and use ^ to replace X (that is, the value at the frequency), it is also applicable to OFDM. The orthogonal non-equilibrium problem between the transmitter and the receiver is still in the previous study (4), However, the material balance of the material function has different values. If the secondary quantity is ignored, and the heart is not excessively stronger or weaker than c, it is ij yeaa'cx + (fifc+pc*)x* Self-distortion noise. Using non-deviation tuning sequences will help eliminate certain items that are beneficial to noise in metrics, as explained above. Transmission - Non-biased (four) calibration sequences can be adjusted by using the !path transmission sequence: Knife and Q-path transmission second part and in a conventional UWB system a even use a non-deviation (no rotation adjustment signal) for the letter... by turning off the Q channel to save power, an embedded pre-term 129716.doc -25- 200901692 The signal can also inform the receiver of the type of calibration sequence. Alternatively, the receiver can automatically detect the calibration sequence of the transmitted wheel. Difficult tasks, because it is sufficient to look at a small number of strong subcarriers to determine whether the transmission is consistent or 90°. r As mentioned earlier, pilot tones are considered as one of the tuning conditions, due to many custom systems. The pilots transmitted in a complex plane in a complex direction are used. When tracking the pilot tones, a deviation is constantly guided in the direction of the pilot by changing the pilot per OFD]V^^ by 9〇. Or, in the same OFDM symbol, refer to other pairs of subcarriers (on different frequencies) to rotate certain pairs (earth f) subcarriers by 90. A better pilot will be obtained. This pilot tone change is simple and almost Zero cost. With the clock between the transmitter and the receiver; the ticket shift 'pilot tone' can have the possibility of compensating for some deviations: the use of the unbalanced adjustment signal with the initial deviation The sequence leads to 7. In other words, 'generating only the pilot pilot tone while maintaining the -off (10) rotation) calibration sequence will reduce the bias in most cases. Simulations have been run to measure the effects of orthogonal unbalance with and without a balanced calibration sequence. For the unbalanced amplitude on the TX side and the phase is i〇°, and the gain of the #(四) balanced data rate (480 Mbps) on the connected m is close to 〖dB. If more types are introduced: loss, which leads to the need for a higher SNR, then it can be expected to be even more. The higher the SNR, the greater the gain that can be obtained with a balanced calibration sequence.曰 - Graphical description - used for transmission - communication tuning sequence: machine map. Although the method is illustrated as a numbered step in the figures for clarity, the present invention does not necessarily specify the order of the steps. 129716.doc -26- 200901692 It should be understood that some of these steps may be skipped, performed in parallel, or there may be no need to maintain a strict order in implementing some of the steps. The method begins in step 1 000. Step 1002 generates a rotational tuning signal in a quadrature modulation transmitter. Usually, the predetermined or conventional information is transmitted as a calibration signal. Step 1002a via one! The modulation path sends the calibration information, and step i〇〇2b sends the calibration information via a Q modulation path. Step 丨004 produces a wanted component that is orthogonally modulated. Step 1 004 may be performed after step 1 002 or concurrently with the performance of step 1 002. In the aspect, step 丨〇〇4 generates a beacon signal at a beacon data rate. Another option is to 'step 1 〇〇 4 to generate information at a communication data rate greater than δ 仏彳 &&gt; Step 丨 Transmission The rotation adjustment signal and the orthogonally modulated communication data. Usually, the generation and transmission of symbols or information occurs almost simultaneously. In one aspect, transmitting the rotational tuning signal in step 1006 includes first transmitting the calibration information via the I modulation path, and then transmitting the tuning information via the Q modulation path. For example, first, the calibration information is generated via the 丨 modulation path (step 1002a) may include energy supply! The path is modulated, but no energy is supplied to the path. Then, after the calibration information is generated via the I modulation path, the calibration information generated via the Q modulation path includes the energy supply (^ the modulation path. Another option is that the calibration information can be sent in the reverse order. More precisely, Generating the calibration information via the I modulation path in step 1002a may include generating a first symbol having a reference phase. Then, generating the calibration information via the Q modulation path in step 1〇〇2b includes generating a phase having a phase For reference phase +9〇 or reference phase -90. The second symbol. 129716.doc -27- 200901692 In another aspect, 'step l〇〇2b uses the following substeps (not shown) via Q modulation path The calibration information is generated. Step 1002bb generates the calibration information through the I and Q modulation paths simultaneously, and step 1002b2 combines the I and Q modulation signals to supply the second symbol. Alternatively or additionally, the calibration information is generated via the I modulation path. A sub-step (not shown) may be included. Step l〇〇2ai simultaneously generates calibration information through the I and Q modulation paths' and step 1002a2 combines the I and Q modulation signals to supply the first symbol. In a different aspect ,pass The input (step 1006) includes sub-steps. Step 1 006a organizes a physical layer (PHY) signal containing a preamble, a header, and a payload. It should be noted that this organization will typically transmit as a pair to receive in a corresponding MAC format. The response of the information occurs. Step i〇〇6b transmits the rotational tuning signal in the ρΗγ header, and step l〇〇6c transmits the IQ modulated communication data in the PHY subcarrier. In another aspect, the 'step 100 la sends a multi-cluster transmission with an unbalanced message (step 1 〇〇 lb) followed by a rotation adjustment signal (step 1 〇〇 6). The unbalanced or unbalanced message includes a non-rotating adjustment a signal, the non-rotation calibration signal having calibration information transmitted via the I modulation path (step 100 lbl), but having no calibration information transmitted via the q modulation path (step 1001 b2). The imbalance message includes a Generating a message format signal (step 1001 b3) 'which indicates that a rotational tuning ## is sent after the unbalanced message. The quadrature modulated communication data is generated in step l001b4. In a different aspect, 'in step i Produced in 〇〇2 A rotational tuning signal includes generating P rotated pilot symbols, and generating quadrature modulated communication data in step 包含4 includes generating (N_p) communication data symbols. Then, at step 129716.doc -28 - 200901692 The transmission in 1006 comprises transmitting N symbols simultaneously. In another variant, 'generating a rotation adjustment signal in step (10) 2 comprises simultaneously generating symbols for a plurality of subcarriers. i explicitly, step 1〇〇2&amp; Tuning information transmitted via a modulated path instead of via a Q modulated path is used for Z• subcarriers. Step (10) 2b~• Subcarriers use calibration information transmitted via the q modulation path instead of the 1 modulation path. Then, generating the quadrature modulated communication data in the step of deleting includes generating the orthogonally modulated communication data for the /phan subcarrier after generating the calibration information. In the aspect, each ί subcarrier is adjacent to a subcarrier. More formally, the channel ac+Pcm*um*u* (1) estimated by the subcarrier ( is adjacent to the subcarrier y by a 90. Rotate the pilot to estimate that almost the same channel is ac+ficm jum ju =ac-ficm*um*u* (2) It should be noted that the #式 in the plural; the symbol should not be mixed with the sub-W. After the averaging of the subcarriers, that is, after averaging the results of (1) and (2), the deviation is automatically cleared. The above flow chart can also be interpreted as an expression of a machine readable medium having stored therein instructions for transmitting a quadrature modulated rotational tuning sequence. The instructions for transmitting a rotational tuning signal should correspond to steps 1A through 1〇〇6, as explained above. Systems, methods, apparatus, and processors have been provided herein to implement a quadrature modulated rotational tuning signal in a transmitter of a wireless communication device transmitter. Examples of specific communication protocols and formats have been given to illustrate the invention. However, the present invention and the invention are intended to be limited to the other variations and embodiments of the present invention as disclosed in the 129, 716. doc -29-200901692. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram of a conventional receiver front end (prior art). Figure 2 is a schematic diagram illustrating orthogonal non-equilibrium (prior art) on the receiver side. Figure 3 is a schematic block diagram of a wireless communication device having a system for transmitting a rotational tuning sequence. 4A to 4D illustrate a calibration of communication data having orthogonal modulation

Graphical representation of the signal. Figures 5A and 5B are illustrations of rotational adjustment symbols as shown in an orthogonal constellation. Figure 6 is a diagram showing an exemplary framework for carrying a message having a rotational tuning signal. Fig. 7 is a schematic block diagram showing a processing device for a transmission-orthogonal modulation rotation adjustment sequence. Figure 8 is a diagram showing two + in-phase 仏 ideal and non-equilibrium constellations of the shock waveform shown in Figure 2. Figure 9 is a diagram showing the phase imbalance as a function of the phase on the impact waveform. Figure 10 is a flow chart illustrating a method for transmitting a communication tuning sequence. ’ [Main component symbol description] 3〇〇 Wireless communication device f system 129716.doc -30· 302 200901692

Ϋ́-304 radio frequency (RF) transmitter 306a line 306b line 308 in phase (1) modulation path 310 orthogonal (Q) modulation path 312 combiner 318 line 320 amplifier 322 antenna 600 physical layer (PHY) signal 602 pre-term 604 Head 606 payload 700 processing device 702 I path modulation module 704 line 706 line 708 line 710 Q path modulation module 712 line 714 line 716 line 718 combiner module 720 line 722 controller module 1297I6.doc -31 -

Claims (1)

200901692 X. Patent application scope: The method comprises: a rotation adjustment signal, the adjustment is for transmitting a communication calibration sequence in the quadrature modulation transmitter to generate a k number comprising: transmitting via an in-phase (I) modulation path Tuning information; and tuning information transmitted via an orthogonal (Q) modulation path; and generating orthogonally modulated communication data; 2 rounds of the rotation adjustment signal and the orthogonally modulated communication data. The method of claim 1, wherein the rotating the tuning signal comprises: first transmitting the calibration information via the I modulation path; and then transmitting the calibration information via the Q modulation path. In March, the method of claim 1, wherein the communication data 3 generated by the squadron, the squadron, and the squadron are generated from a group of materials consisting of: The second generated beacon signal and the communication data generated at an overnight data rate greater than the rate of the beacon. The method of claim 1, wherein generating a rotation adjustment signal comprises simultaneously generating symbols for a plurality of subcarriers, as follows: for one subcarrier, transmitting by using the chirp modulation path instead of the chirp modulation path Tuning information; second, j subcarriers, using calibration information sent via the Q modulation path instead of the J; &amp; 5. The communication data generated by the quadrature modulation is included in generating the calibration resource The quadrature modulated communication data is generated for the i and j subcarriers. The method of σ s, wherein the calibration information is generated via the I modulation path 1297I6.doc 200901692 匕3 generates a first symbol having a reference phase; and wherein the calibration information is generated via the Q modulation path A second symbol having a phase of - from |, a group consisting of the following reference phases is generated. And _90. . 6. The method of claim 5, wherein generating the calibration information via the chirp modulation path comprises: simultaneously generating calibration information through both the I modulation path and the q modulation path; To supply the second symbol. The method for generating a calibration information combination via the I modulation path and the I and Q modulation signal 7 as claimed in claim 5, comprising: 5: generating a tone through both the I modulation path and the Q modulation path School information; and A, -and &amp; 1 and Q modulation signals to supply the first symbol. The long term 1 goes to 'the transmission of the rotation adjustment signal and the orthogonal modulation communication data includes: organizing a cold τ ς σ 10 (10) ν 匕 3 other items, headers, and the physical layer (ΡΗΥ) signal of the payload Transmitting the rotation tuning signal in the header; and passing the quadrature modulation in the X ΡΗΥ payload. 9. If the request is requested?夕方,土. ^ 丨〇μ ΤΤ / , 八中百先The calibration shoulder is generated via the 1 modulation path §fl contains: energy for the I modulation path; but not for the Q modulation path; 129716.doc 200901692 wherein after the calibration information is generated via the I modulation path, generating calibration information via the Q modulation path includes supplying energy to the Q modulation path. 10. The method of claim i, wherein generating the rotational tuning signal comprises transmitting predetermined tuning information via the I modulation path and transmitting predetermined tuning information via the Q modulation path. 1 1. The method of claim 1, further comprising: transmitting a multi-plex transmission having an unbalanced message followed by the modulating signal and the quadrature modulating communication data, the imbalance The message includes: - a non-rotating calibration signal, wherein: having calibration information transmitted via the I modulation path; having no calibration information transmitted via the Q modulation path; &gt; a ring format signal 'indicating After the unbalanced message, a rotation adjustment signal is sent; and the communication data is orthogonally modulated. 12. The method of claim 1, wherein the rotating pilot symbol comprises generating a rotational tuning signal comprising generating a communication data of p comprising generating (NP) communications, wherein the quadrature modulated data symbol is generated; and transmitting the slave The tuning signal and the communication R package & the earth stop transmission communication packet 3 simultaneously transmit N symbols. 13. A processing device for transmitting a quadrature modulated fission f, _. 燹 红 转 转 ' ' 该 该 该 该 该 该 该 该 该 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' , having 1297I6.doc 200901692 ^ and an input for receiving 1 control signal, and a round for supplying I modulated information; an orthogonal (Q) path modulation module having a use The input terminal for receiving information, and the input terminal for receiving the Q control signal, and the output terminal for supplying the Q modulation information; the combiner module having the function of receiving the I and Q modulation The @input terminal of the information and the output terminal for supplying the signal of the quadrature modulation; and the controller board group having the output terminal for supplying the I and Q control signals The I and Q control signals are generated: a hk transfer weight f tiger' which includes the tuning tile transmitted via the z modulation path and the tuning information transmitted by the Q modulation path; and the quadrature modulation communication data. 14. A communication system for transmitting a quadrature modulation rotation adjustment sequence. The system comprises: i... (IK Week: Sheyi) has an input for receiving information, an in-phase path, a quadrature (Q) modulation path, and a combiner for combining signals from the two paths and the Q modulation path; the packet transmitter transmitting a rotation adjustment signal, the rotation adjustment signal 3' by the I The modulation path sends the adjustment information of the secondary path transmission, and the Beixun and the Q-switched road school: the transmitter transmits the orthogonally modulated communication data and the system of the rotation adjustment such as the kiss request item 1 4 , wherein the transmission path transmits Hu h times ^ &quot; wrong by first adjusting the I through the I gastric sputum by the Q modulation path to send the adjustment resource 1297I6.doc 200901692 to send the rotation adjustment signal 16. If the request item The system of 14 'where the transmission information is selected from the following composition: ... the data of the parent modulation, and the group of the information. A beacon signal generated by the data rate, and '-^ + The communication data generated by the rate. 叮疋17·The system of claim 14, wherein The simultaneous generation of the symbol Η ^ is a number of subcarriers to generate a pay-to-spin signal, as follows: for the use of one subcarrier via the 丨 Tuning information; ^Road &amp; not the Q modulation path is sent as j subcarriers using the calibration information sent via the Q modulation path; and the change path is not the one modulation path. The transmitter generates orthogonally modulated communication data for the identified subcarriers after generating the calibration information. 18. The system of 014, wherein the transmitter transmits the rotation adjustment signal by transmitting a first symbol having a reference phase via the taste change path and transmitting a symbol via the Q modulation path, and the second symbol is selected The phase of a group consisting of the following reference phases: +9〇. And the system of the -90° gentleman spray solution 18, wherein the transmitter transmits the calibration information through both the 丨 modulation path and the Q-control only path control, and combines the I and 卩 modulation k To supply the second symbol. 20. The system of claim 18, wherein the transmitter simultaneously transmits the calibration information through both the chirp modulation path and the Q modulation path and combines the I and Q modulation signals to supply the first symbol . The system of claim 14, wherein the transmitter transmits a physical layer (PHY) signal including a preamble, a header, and a payload, wherein the rotation adjustment is included in the PHY header The signal 'and has the orthogonally modulated communication material in the ρ Η γ payload. The system of claim 15, wherein the transmitter first transmits the rotational tuning signal via the modulation path by supplying energy to the modulation path but not supplying energy to the Q modulation path; After transmitting the calibration information via the I modulation path, the transmitter transmits the rotation adjustment signal via the Q modulation path by supplying energy to the Q modulation path. 23. The system of claim 14, wherein the transmitter is via the ! The modulation path and the Q modulation path transmission - a rotation adjustment signal having predetermined adjustment information. 24. The system of claim 14, wherein the transmitter transmits a plurality of burst messages and an unbalanced message comprising the rotational tuning nickname and the quadrature modulated data. The unbalanced message has: a non-rotational calibration signal comprising the adjustment information transmitted via the 1 modulation path, but excluding the calibration information transmitted via the Q modulation path; - a message format signal indicating that the unbalanced message is sent after a rotation adjustment signal; and &quot; orthogonal modulation communication data. The system of claim 14, wherein the transmitter generates p rotated pilot symbols and orthogonally modulated (N_P) communication data symbols and simultaneously transmits N symbols. </ RTI> </ RTI> </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; a signal, the rotation adjustment signal comprising: calibration information transmitted via an in-phase (I) modulation path; and, &amp; calibration information transmitted by an orthogonal Q modulation path; and generating quadrature modulation Communication data; and transmitting the rotation adjustment signal and the orthogonal modulation communication data. 27. A communication device for transmitting a rotational tuning signal, the device comprising: means for rotating a calibration signal using an in-phase (1) and a positive parent (Q) modulation path; and for generating a quadrature modulation a component of the communication data; and a component for transmission. 28. A device as claimed in π, wherein the rotational tuning signal is first transmitted via the modulated path and subsequently transmitted via the chirped path. 29', wherein the device of claim 27, wherein the orthogonally modulated communication data is transmitted as data selected from the group consisting of: a beacon signal generated at a beacon data rate, and _ Communication data generated at a rate greater than the rate of the beacon data. The device of the π-th item 27, wherein the rotation adjustment signal includes symbols generated simultaneously for a plurality of subcarriers, as follows: for i subcarriers, via this! The tuning information of the modulation path instead of the profit path (4); for the j subcarriers, the calibration information of 129716.doc 200901692 is sent via the Q modulation path instead of the modulation path; and the calibration information is generated i Φ ^ ^ ^ *1 ^ „ generates the communication data of the parental modulation for the side 1 and J subcarriers. 3 1 · If the device of claim 27, 1 B is sent via the 1 modulation path The tuning broadcast includes a first symbol having a clip to the 100-reference phase; and the 5th tuning cross-link via the Q modulation path includes one having a selected from the following The reference phase 彳, and the second symbol of the phase of the group: +90. and -90. 32. The device of claim 31, the path and the Q modulation path No. 2. Transmitting, by the j-switcher, a device that is combined to supply the second lunar item 29, wherein the tuning information is simultaneously transmitted through the I-modulation path mq, and combined Supplying the first symbol. 34. The apparatus of claim 27, wherein the rotation adjustment signal is The physical layer (PHY) message header is sent; and the middle side IQ modulated communication data is transmitted in a ρΗγ message payload. 35. If the apparatus of claim 28 is used, the tuning information system first utilizes the energy supply. The I modulation path is transmitted via the 1 modulation path instead of the energy-modulating q modulation path; wherein the calibration information is then transmitted via the Q modulation path using an energy-provided Q modulation path. The apparatus of claim 27, wherein the rotation adjustment signal comprises predetermined calibration information transmitted via the I 129716.doc 200901692 variable path and the Q modulation path. 37. The apparatus of claim 27, further comprising: A component for generating an unbalanced message, comprising: means for generating a non-rotational tuning signal, the non-rotating tone, having, and two tuning information transmitted by the one modulation path but not having The calibration information sent by the Q modulation path; - means for generating a message format signal, the message format signal indicating sending a rotation adjustment signal after the unbalanced message; and for generating A device for interchanging communication data. The device of claim 27, wherein the p rotating pilot symbols are generated by orthogonally modulated communication data symbols, and wherein the N symbols are simultaneously transmitted 129716.doc