TW200531465A - A method for generating OFDM frame for wireless communications - Google Patents

Abstract

A method for generating an orthogonal frequency division multiplexing (OFDM) frame for wireless communications by generating a preamble of the OFDM frame, wherein the preamble includes training information and signal information. The method continues by generating a plurality of data fields includes a plurality of subcarriers, wherein at least some of the plurality of data fields includes, at most, three of the plurality of subcarriers allocated for a pilot signal.

Description

200531465 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to different modes between the non-green ^ 7 ^ support and the wireless communication system. The other is about wireless communication equipment. [Prior technology] ~ ° Rivets connected with electronic devices are well known. Specific examples of the communication network include a wired packet data network, a wireless packet data network, a wired telephone network, a wireless telephone network, and a satellite communication network. Usually these communication networks include services provided by New Zealand clients. Public Switch Tumble (PSTN) is probably the best known example of a communication network and has been around for many years. The Internet is another well-known example of a communication network, which has also been around for many years. These communication networks enable client devices to communicate with each other globally. A wired local area network (LAN) such as Ethernet (Chicao is also very common, which can support service areas _ _ roads _ other settings _ communication. Local area networks are also usually connected to wide area networks and the Internet. Every network that is generally considered "wired", even though some networks, such as pSTN, may include transmit channels that can be used for wireless connections. Compared to wired networks, wireless networks have been around for a relatively short time , Such as mobile phone flaps, no gratuitous (WLANs), charm, etc. Wireless area networks are usually established according to-or multiple standards, such as ffiEdan (b), · η (g), etc. These standards can be collectively referred to as " IEEE802 11 network. In a typical IEEE802.il network, a plurality of wireless access points (Accesspoints, Aps) 200531465 Ling wireless communication equipment (such as computers including compatible I-line " surface) for wireless communication. A ，，，， Wireless area _Ministry ～ Road capacity. H belongs to ^ Together visit when using mobile computers, mobile data terminals, and other fixed mobile devices connected to the wired network of Yaco County, the network has a county Advantages, of course, compared with the area network W3_ No age_for a relatively low data rate. The current wired network can provide ^^ 1 (Gigabit), which can provide _ seconds of bandwidth. Due to its advantages in serving mobile devices, wireless LANs often cover Service area of the wired network. Among the above devices, most of the devices connected to the wired LAN are fixed, such as desktop computers; while the devices connected to the wireless LAN are mainly axis, such as mobile computers. Mobile computers There can also be, _domain network connection 'to make it possible to obtain higher bandwidth services without scaling. New wireless network standards support relatively high data rates. For example, # IEEE8〇2.ll (a) standard The supported data rate is 54 million bits. Wei) IEEE80.ll (g) has reached the above data rate per heart. The ship's gall m⑷ uses orthogonal frequency division (BM & η layer 'financial aid to the above). Hearing rate. With the OFDM physical layer, the available carriers are differentiated into a plurality of subcarriers or channels (oil hidden wins tones), and each-subcarrier transmits a part of the multiple signal data stream. Embryo 6 200531465 (a) OFDM physics Layer includes 48-bit metadata transmission channel and $ -bit control signal channel The space / bandwidth is 0.3125MΗζ. As shown in ® | 1, the subcarriers 0, 27 ~ 32, and subcarriers _27 to 31 are not used. The subcarriers + / _ 7, and the subcarriers + 8 21 are used as the four controls. Signal channel or signal. Subcarriers 1 to 6, subcarriers 8 to 20, subcarriers 22 to 26, subcarriers -1 to -6, subcarriers -8 to -20, and subcarriers -22 to -26 48 data transmission channels for transmitting data. Tian standardized the subcarrier allocation in the figure and supports a wide range of wireless LAN applications. There are also some wireless LAN applications that do not have the above-mentioned subcarrier allocation. For example, if the channel bandwidth is narrow or used for multiple-input multiple-output (MIMO) wireless communication, the subcarrier allocation in the first picture may not be optimal and / or achievable. Therefore, there is a need for an orthogonal frequency division complex chirp generation device and method for narrow channel applications and / or MIMO applications. [Summary of the Invention] The format of the positive-parent frequency division multiplexing frame of the present invention fully meets the above and other requirements. In the example embodiment, a method for generating an orthogonal frequency division multiplexing frame for wireless communication is disclosed. First, the orthogonal frequency division one frame is generated in advance, wherein the pre-data includes training information. And signal information. The method then generates a plurality of data blocks of the orthogonal frequency division multiplexing frame, wherein each of the plurality of data fields includes a plurality of subcarriers, and at least part of the plurality of data blocks includes, at most, three of the control signal dispatched. Plural subcarriers. In another embodiment, a method for producing orthogonal frequency division multiplexed frames for multiple-input multiple-output wireless communication is disclosed. ‘First convert a data stream into a complex data stream. The method then converts the complex data stream into complex orthogonal frequency division multiplexed frames, wherein each of the complex orthogonal frequency division multiplexed frames includes separate data with training information and signal information, each of which Complex Orthogonal Frequency Division Multiplexing (ΦOFDM) includes a complex data column, wherein each complex data block of each of the complex Orthogonal Frequency Division Multiplexing frames includes a complex subcarrier, wherein at least one of the complex Orthogonal Frequency Division Multiplexing The plurality of data blocks of at least a portion of the frame include up to three of said plurality of subcarriers to which control signals are assigned. In yet another embodiment, a method for receiving orthogonal frequency division multiplexed frames for wireless communication is disclosed. Firstly, the pre-positioned data of the orthogonal frequency division multiplexed frame is received, where the pre-data includes training Information and signal information. The method then receives a plurality of data columns of a side-to-parent frequency division multiplexed frame, wherein each of the plurality of data blocks includes a plurality of subcarrier frequencies, and at least some of the plurality of data blocks include, at the most, three, as indicated by signal information. The plurality of subcarrier frequencies to which control signals are assigned. The method then converts the plurality of data into internal data (inband_data). In a further embodiment, one or more such methods may be a radio frequency transmitter and / or a radio frequency receiver. [Embodiment] The second figure shows a schematic structural diagram of a communication system 10, which includes a plurality of base stations (Base stations, BS) and / or access points (Access points) 12 16 'plural wireless communication Devices 18-32, and a network hardware component. 8 200531465 Among them, the wireless communication devices 18-32 may be laptop computer hosts, personal digital assistants, 2G and 3G, personal domains and%, and / or mobile phone hosts 22 and 28. These wireless communication devices will be described in more detail in conjunction with the third figure. Base stations or access points 12-16 are operatively connected to network hardware 34 via local area networks (LAN) 36, 38, and 40. The network hardware 34 may be a router, a converter, a bridge, a modem, a system controller, etc., and it may provide a wide area network (WAN) connection 42 for the communication system 10. Each base station or access point does not have an associated antenna or antenna array to achieve communication with the wireless rail system in its area. Generally, a wireless communication device is registered to a specific base station or access point to receive services from the communication system U). For direct connection (point-to-point communication), wireless communication devices will communicate directly through a designated channel. —Usually used in mobile phone systems and similar systems, access points are used in homes or buildings. Ignoring specific aspects of the communication system, each wireless communication device includes a built-in wireless transceiver and / or is connected to a wireless transceiver. It should be noted that-or multiple access points and their attached wireless communication equipment may be in the same building. The third figure shows a schematic block diagram of a wireless communication device, which includes a host device 18-32 and an associated wireless transceiver 60. For a mobile phone host, the wireless transceiver 60 is its built-in component. For the personal digital assistant Z machine, laptop electric parking machine, and / or smart phone f parking machine, the county professional hair machine ⑼ 200531465 can be its shouting component or it can be connected to the connecting component. It can be seen from the figure that the host device ㈣ includes a processing module 50, a memory 52, a wireless transceiver interface M, an input interface%, and an output interface 56. The processing group 5G and the clock 52 execute corresponding commands that are usually completed by the host device. For example, 'for a mobile phone host device, the processing module 50 will perform a corresponding communication function according to a specific mobile phone standard. The wireless transmitting and receiving interface 54 checks the data transmission and reception between data transmission and transmission. For wireless transmission and reception, please receive inbound data (ie, inbound data). The wireless transceiver interface 54 will provide the data to the processing module 50 for further processing and / or secret money sending interface 56. The output interface 56 provides a connection with an output display device, such as a monitor, a monitor, a speaker, etc., so that the received data can be displayed. The wireless transceiver interface M can also provide the processing module 5G with data to the wireless transceiver 60. The processing module% can receive the input data from the input device such as keyboard, distress, microphone, etc. through round interface 58, or generate the data by itself. For the data received by the turn-in interface 58, the processing module 5 can perform a corresponding host function and / or money to the data from the wireless receiving interface 54_ 细 # to the wireless device 60. What is the wireless transceiver? 60 includes-host interface 62, digital receiver processing module analog-to-digital converter (analog-to_digital converter, ADC) 66,-filter / increment domain group 68,-IF mixed down conversion module 7Q,-receiver ㈣ 200531465 7 wave filter-low noise amplifier. (L〇wn〇ise amplifier (LNA) 72, · a send / receive (Tx / Rx) changeover switch 73,-local oscillation module%, memory. 75,- Digital transmitter processing module%, digital-to-analog converter (DAC) 78, a filter / gain module 80, an IF mixed up conversion module, group 82, a power amplifier Variance correction,-transmitter (Tx) filter module 85, and antenna%. The antenna% may be a single antenna shared by the transmission and reception paths under the control of the transmission / reception changeover switch 73, or different antennas may be provided for the transmission path and the reception path, respectively. The essence of the φ antenna depends on the mosquito standard that wireless communication equipments have. The digital receiver processing module 64 and the digital transmitter processing module are combined with a record of operation instructions, _? 5, a branch line digital connection function and a digital shipping benefit function. Digital receiver functions include, but are not limited to, digital intermediate frequency to baseband conversion, demodulation (such as __〇11), combination demapping, decoding, and / or decryption ( descmmbling). Digital transmitter functions include, but are not limited to: scram theory, encoding, combination mapping, modulation, and / or digital baseband-to-positive conversion. To implement the digital receiver and transmitter processing modules 64 and 76, a common processing device, a separate-processing device, or a plurality of processing devices may be used. The processing equipment may be a microprocessor, a microcontroller, a digital signal processor, a microcomputer, a central processing unit, a field programmable array (flddpn) grammabiegate 200531465, a programmable device, a state machine, an electrical ί. 75 Memory & memory can be read-only memory, random access memory, weave memory, static memory, dynamic memory ^, and / or any device that can store digital information. It should be noted that when == 64 and / or 76 is implemented by state machine, analog circuit, digital circuit, and logic logic, the number 2 where the phase is stored will be deleted. Into a circuit including the state machine, analog circuit, digital circuit port: or logic circuit. Now, at a glance, the receiving and sending states 60 receive a set of outbound data 94 through the host interface 62. Host interface 62 sends outbound data 94 to the data ^

The Sheda people processed her 76, and the specific non-communication standard (for example, IEEE80Z1, Bluetooth, etc.) was processed on the outbound data 94, and the outbound baseband signal 96 was generated. The outbound baseband signal% includes 0FDM frames. The frequency range of the IF is usually between 100KHz and several million Hz, with 疋 -digital baseband signals (for example, a 0IF) or a digital low-I signal. The digital analog converter 78 converts the outbound baseband signal% from the digital domain to the analog domain. The wave considering / gaining module 8G is used to filter and / or adjust the gain of the analog signal before transmitting the analog signal to the IF hybrid up-shift group 82. The IF hybrid up-conversion module 82 converts the signal into an RF signal based on the transmitter Local Gu Signal (TxLO) 83 provided by the Local Oscillator Module% 12 200531465. Liberation A stomach δ4 ___ Big = into an outbound RF signal 98 and send it to the transmitter stitcher module 85 for antenna 86, then send the outbound rp signal 98 to the target device, such as ^ station, ° access point and / Or another wireless communication device. The wireless transceiver 60 also receives, through the antenna 86, the personal station 88 which is triggered by a base station, an access point or another wireless communication device. Antenna_The inbound job number 88 is provided to the receiver's wave filter module face by the send / receive switch 73. The receiver filter module 71 performs band-pass filtering on the inbound egg signal. The receiver filter module 71 provides the filtered and waved signal to the low-noise amplifier 72, which amplifies the signal 88 to generate an amplified inbound financial signal. The low-noise amplifier 72 then supplies the amplified inbound signal to the forward hybrid down-conversion module 70, which is based on the receiver local oscillation signal (RxL0) 81 provided by the local vibratory module 74, The amplified inbound signal is converted into an inbound low IF signal or baseband signal. The π? hybrid down conversion module 70 provides the _ inbound low IF signal or baseband signal to the filter / gain module 68. The filtering / gain module 68 then filters the inbound low IF signal or baseband signal and / or adjusts its gain to generate a filtered inbound signal. The analog-to-digital converter 66 converts the filtered inbound signal from the analog domain to the digital domain to generate an inbound baseband signal 90. The inbound baseband signal 90 contains an OFDM frame, which can be a digital baseband signal or a digital Low IF signal, so the frequency range of the digital low IF is generally between 100KHz and several million ^^ The gate receiver processing module 64 decodes the inbound baseband signal 90, resolves the digital radio, and / Or demodulate to recover a set of inbound data 92 according to the characteristics adopted by the wireless transceiver 60. The host interface, ..., ^ will be restored by the wireless transceiver interface 54 inbound data 9 ^ 18_32. (1) Setting the host. Those of ordinary skill in the art can understand that the wireless communication equipment shown in the third figure can be implemented by using-or a complex integrated circuit. For example, the domain: can be implemented on a -integrated circuit, the digital receiver processing module 64, the digital transmitter processing module 76, and the memory 75 can be implemented on a second integrated circuit, = of the transceiver 60 The remaining components (except antenna 86) can be implemented on the third integrated circuit. In another example, the wireless transceiver 60 can be implemented on a single integrated circuit. In another example, the 'host device's ambiguity and 50 with the digital receiver and the advanced processing module 64 and 76 can be in a single A common processing device implemented on an integrated circuit. In addition, the memory 52 and 75 can be connected on a single frequency circuit or with the processing module 50 of the host device, the digital receiver and transmitter processing modes, and the common locations where 64 and 76 are located are group circuits. The fourth figure is a schematic diagram of wireless communication between two wireless communication devices. It can be seen from the figure that there is a transmitter touch in the first wireless communication device, and a receiver 102 in the second wireless communication device. Each wireless communication device can be implemented by referring to the structure diagram shown in FIG. 3 of the foregoing description of neodymium. 14 200531465 It can be seen from the figure that the receiver receives a set of outbound data 94 and converts it into an outbound RF signal 98. The signal 98, which contains the 0FDM frame 104, is transmitted from the transmitter 100 to the receiver 102. The receiver 102 receives Q104 as an inbound RF signal 88 and converts them into a set of inbound data 92. In OFDM # 104, a pre-data part 106 and a data part 108 are included. The pre-data part 106 includes training information no and signal information m. Taking 802.lla application or other 8021 application as an example, the training information may include a short training sequence, a complex guard interval, and a complex long training sequence. The signal information part 112 may be a signal field consistent with 802.lla or other 80211 rule, and it provides information related to the length, data rate, etc. of the OFDM frame 104. In addition, the signal information 112 may include an indication to indicate which of the plurality of subcarriers in the data portion of the OFDM signal will be used as a control signal or channel. The breeding section 108 includes a plurality of guard intervals (GI) and a plurality of data fields 1 mis. The data contained in each data block is located in the 64 subcarriers of Ofdm Xiaozhen's spring. As shown in the fourth figure, in one embodiment, the data column 116 contains 64 subcarriers centered on the RF frequency of the RF signal 98. For a 20MHz channel, the spacing between subcarriers is 312.5KΗζ and is represented by the arrows in the fourth figure. It can also be seen in the k-picture that some subcarriers are not used. Specifically, the subcarriers 27 to 32 and the subcarriers -27 to -31 are not used. In this example, only 15 200531465 uses two control signals and is located on subcarrier 21 and subcarrier-21. In this embodiment, the subcarriers 7 and -7 are used to carry data, and they are used as guide channels in the rule of 802.11a. In this way, by using more subcarriers to send data and fewer subcarriers to send control signals, a particular data column can represent more data. The fifth figure does not show another configuration scheme for OFD1V [subcarriers in a frame. Among them, the control k is located at the sub-carrier 7 and the position, and the sub-carriers 21 and _21 are used to carry the data. It should be noted that between the data column and the data column of the 0FDM frame, the configuration of the carrier wave can be based on some predetermined patterns, one by one, from the dissatisfaction shown in Fig. 4 to the fifth picture. State, or fixed to the configuration state shown in the fourth or fifth figure. The sixth figure shows another configuration scheme of the subcarriers in the OFDM frame. Among these, 'subcarriers 0, 27 to 32, and _27 to _32 are not used. The subcarriers j to 6 8 to 20, 22 to 26, -1 to -6, -8 to -20, and -22 to _26 are used for carrying reading. In the real butterfly, the sub-sharp + / _ 7 and the sub-shave + / _ 2 丨 can be used for data or control signals. Similarly, 0 to 4 of the subcarrier + / _ 7 and subcarrier + ⑵ can be used to carry the pilot channel. The seventh figure does not show the extreme steepness of a physical layer operating according to an embodiment of the present invention. In the present invention, the physical layer resides in a channel of 10 MHz, and is: The physical layer of 11⑻ has many similarities and some differences. Figure 3 compares the physical layer of 10MHZFDM of the present invention with the physical layer of IEEE802.il⑻ 16 200531465. The 10 MHz OFDM physical layer of the present invention is operable in various frequency bands, including the 4.9-5.0GHZ frequency band and the 5.03-5.091GHZ frequency band. When the physical layer is running, it has a maximum range of 3 Km, a maximum permitted transmission power of 25 Gmw, a maximum of 250 MW EIRP, and a maximum unlicensed transmission power of 100 lan. The path loss (obstacle path) model of the edge physical layer can be described by the formula: L / +, where, at a typical value of 50 shirts, 116dB +/- 9.3 dB, the handle, and iron "25 times" 咭 乂. The physical layer The average value of delay spread is 275 9ns, and there is still a standard deviation of 352. Because the delay spread of this physical layer is greater than the delay spread of the IEEE802 (n = 50ns delay spread channel), Therefore, a guard interval (the first code of the loop) is needed. Moreover, because the path loss of the physical layer is greater than the path loss of the IEEE8020⑻ physical layer, the receiver supporting the physical layer should have higher sensitivity. With IEEE802.il⑻physics Layer comparison, when the receiver's bandwidth is reduced by a factor of 2, the physical layer's SNR will be increased by 3. The length of the guard interval (loop first code) will be doubled to 1.6ms. The symbol length is doubled to maintain the same The same guard interval overhead as in IEEE 802.11 (a). Just like the IEEE 802 n⑻ physical layer, a 64-point Fast Fourier Transform (FFT) can also be used in this physical layer. The eighth figure is based on this Invention Example, Description The control method of the physical layer channel. Because the bandwidth of the physical layer is reduced (compared with f of the physical layer of IEEE8021 (a)), the center channel, channel-1 and channel + i are closer to dc. On 17 200531465 At w, many receivers are connected to the Podwave. Normal frequency compensation effectively moves the groove away from the acoustic communication terminal, and the role of frequency compensation is even more severe. In the close-to-channel interval compensation ™ wave, the frequency is therefore According to the present invention, the two internal resources: the knife. The channel is removed / no longer used for tuning (the radio and physical layers are on the channel) and +1 ^ = the use of dirty coffee. Η 通道 channel -12, -7, ^ = Γ of 7 and 21 moves to the bearing control signal 4Q7 28KH / "Positively, the physical layer includes a dead band bandwidth of 407 · 28KΗζ + receiver groove bandwidth. In this application, the physical layer is based on the k = sign The index modulo 6 (starting from the zero-signal bluff) alternately uses the data on the channel · Kou-7} k = l; Bu 21,, Na k = 3; {-7, 7} k = 5; {7, 21} k = 〇; in the channel {-21 k = 2; {々I, 21} k = 4; [7,21}

This kind of scheme maintains the diversity of the frequency of the control signal. Moreover, except that the inter-day interval with the: IFFT is increased by a factor of 2, the short and long training symbols are generated in the same way as in the viscera 2.11 crotch knife 17.3.3. Supports PHY level 3, 4 · 5 6 ′ 9 ′ 12 ′ 18, 25, 27 Mbps. Some of the longer symbol times and air propagation times require MAC time changes, as far as the IEEE802.ll (a) physical layer is concerned). These time changes are summarized as follows: 18 200531465 aCCATime increased from 4 booster to 8 microseconds aAirPropagationTime increased from much less than 1 microsecond to 2 microseconds' aSlotTIME = 14 microseconds aSIFTIME = 16 microseconds (no change) PIFS = 30 microseconds Second (SIF + SLOT) DIFS = 44 microseconds (SIF + 2 * SLOT) The ninth figure is a subcarrier allocation diagram for a narrow channel OFDM frame. The narrow channel may have a bandwidth of less than 20 MHz, and in one embodiment may be 10 MHz. In this example, referring to Fig. 8, the subcarriers 0 and +1 and a are not used. In addition, the subcarriers 27 to 32 and -27 to 32 are not used. In this example, 'is a loss channel that replaces subcarriers -1 and +1, and subcarriers +7 and -7 or +21 and -21 are used to transmit data, and another pair of subcarriers is used to transmit control signals. In this example, the subcarriers +1 and 4 are used to transmit null data. Figure 10 is a schematic diagram of the wireless communication structure of multiple-input multiple-output wireless (multiple_input_multiple_output, MIMO). In this example, the transmitter 120 of the wireless communication device Lu receives the outbound data stream 124 and converts it into a complex RF signal. Each RF signal includes a complex OFDM frame 126. A receiver 122 receives the complex RF signal and converts it into an inbound data stream 128. The transmitter 120 and the receiver 122 will be further described in conjunction with the wireless communication device of FIG. In the drawing, each OFDM frame 126 may be a sub 19 200531465 shown in the sixth figure, and from channel to channel, the subcarrier allocation method may be different. For example, 'if there are four beneficial green' devices, _ Each of the paths exists in transmitting and receiving Λ ,. There are different subcarrier allocation methods. There are four control signals on the channel. There are no control channels. There are four control signals. The product year can be transported by machine number, and the remaining two are among them. One can be evil _7, the other side ㈣. Those skilled in the art may know that due to the multiple communication paths between the control and editing tigers sent from one path "can __step and / or point to another path, associate synchronization and / or point to multiple paths.疋 Includes the structure diagram of the host device 18_32 and the associated wireless transceiver pair. In mobile phones, please set up wireless transmission and reception. For personal digital assistant host, laptop host, and / or personal computer host ' The wireless transceiver 16 can be a built-in or external integrated component. As shown in the figure, the host device 18_32 includes a processing module 50, a memory 52, (..., a cable receiving surface, an input interface 58, and an output. The interface%. The processing module 50 and the memory 52 execute those communication commands usually completed on the host device. For example, 'the mobile phone host, the processing module 50 performs the communication function according to the specific mobile phone standard.', The wireless transceiver 11 interface 54 realizes the receiving and sending of data from the wireless transceiver ϋ 160. The wireless transceiver interface 54 transfers the data received from the wireless transceiver 20 20 200531465 to the Γ group 5G riding-in process and / or The sending interface 56. The output interface 56 is connected to a display, monitor, speakers, etc. The display is not damaged to display the received data. Wireless transmission and reception% ^ Hunting by the input interface 58 Data or data generated by itself. For the data received through the input interface%, the processing module 5G can provide the corresponding host function in data and / or transmit the poor data to the wireless transceiver through the wireless transceiver interface 54. Wireless Transceiver Hall includes host interface 162, a baseband and 164, memory 166, multiple wireless frequency (transmitter) fingers, transmit / receive (T / R) module 174, multiple antennas 182_186, multiple shrimp receivers 176-180 and local vibration recording 0) module 200. The baseband processing module combined with the operation instructions stored in the memory is divided into two lines: digital receiver function and digital transmitter function. Digital receiver function Including but not limited to: digital IF to baseband conversion, demodulation, combined demapping, decoding, de-interleaving, fast Fourier transform, c 前置 ^ p theory removal, spatial domain with Time domain decoding, and / or descmmbling. Digital transmitter functions include but are not limited to: scrambling, encoding, interleaving, combined mapping, modulation, inverse fast Fourier transform, periodic month Encoding, spatial and time domain coding 'and / or the conversion of digital baseband to digital intermediate frequency. The baseband processing module 164 can be implemented by one or more processing equipment 21 200531465. This processing can be done without damage. Microcomputers, central processing single devices, state machines, logic circuits, class 7 arrays, and programmable logic can be based on the age of the operation. Ship or Wei Guang Ren's legs can be single memory or multiple memories. This side may =. § Ji = ’= access_, volatile memory, non-volatile memory: data, memory’ and / _ have storage digits:; Note that when the processing module 64 executes one or more functions by a static machine, analog circuit, digital pen circuit, and / or logic circuit, the memory storing the communication # instruction is embedded in the static machine, analog circuit, and digital circuit. , And / or logic circuits. The 'wireless transceiver' in the tree has just received the outbound data stream 188 from the host through the host interface. The baseband processing module 164 receives the outbound data stream, and based on the plate selection signal 2G2, one or more outbound symbol streams, each of the outbound symbol streams includes 0FDM blocks. The specific mode indicated by the mode selection signal is described in the mode selection table. For details, see the end of this article. For example, the mode selection field 202 'may refer to Table i. The frequency band is 24 GHz, the channel bandwidth is 22 MHz, and the maximum bit rate is 54 million bits per second. In the usual type, the mode selection signal also indicates that the specific frequency ranges from 1 million bits per second to 54 million bits per second. In addition, the mode selection signal indicates the specific type of modulation, including, but not limited to, Barker code modulation, BPSK, QPSK, CCK, 16QAM, 22 200531465, and / or 64QAM. As shown in the table, the coding rate is also given: the number of data bits (NBPSC) on each OFDM frequency, the number of coded pools (NCBPS) in each OFDM symbol, and the number of OFDM symbols in each OFDM symbol. The number of bits (NDBPS) of the data to be included, the magnitude of the error vector (EVM) in decibels, and the sensitivity to indicate the maximum receiving capacity required to obtain the target packet error rate (for example, 10% in IEEE802.Ha ), Adjacent channel rejection (ACR), and alternate phase. Adjacent channel rejection (AACR). The mode selection signal 202 also indicates a specific channelization mode, which is used for communication φ core type '. The communication mode used in the information in Table 1 is described in Table 2. As shown in Table 2, Table 2 includes the number of channels and the frequency of the communication center. The mode selection signal can also indicate the power spectrum density (PSD) mask code values shown in Table 3 for Table i. The mode selection signal 202 can indicate a value in the table * with a 5 GHz band, a 20 MHz channel bandwidth, and a maximum bit rate% megabit rate. If the specific mode selection has been made, Table 5 indicates the carrier selection. Alternatively, as shown in FIG. 6, the mode selection signal 102 can represent a Lu 2 / solitary band, a 20 MHz channel bandwidth, and a maximum bit rate of 192 million bit mother-seconds. A large number of antennas in FIG. 6 can be used to obtain higher bandwidth. Mode selection in Intrinsic] also indicates the number of antennas used. Table 7 illustrates the choice of carriers for Table 6. Table 8 shows the alternative-selection mode corresponding to the case of the 24 GHz band, the π-pass z-channel bandwidth, and the maximum bit rate of 192 million bits per second. Table 8 includes the use of 2-4 antennas and the space shown in the table. Time 23 200531465 The encoding rate is expressed at various bit rates from 12 million bits per second to 216 million bits per second. Table 9 shows the selection of carriers for Table 8. The mode selection signal plus β ′ indicates the specific operation mode not shown in Table 10, which corresponds to the frequency band, which has a 40 MHz band, a 40 MHz channel bandwidth, and a maximum bit rate of one million bits per second. As shown in Table 1G ', using M antennas and corresponding communication space-day coding rates, the bit rate can vary from 13.5 million bits per second to gamma million bits per second. We also indicate that the specific coding configuration coding rate and value table II gives the power spectral density mask code values used in Table 10, and Table 12 gives the carrier selection of Table 10. The baseband processing module 164 based on the mode selection signal 202 generates one or a plurality of outbound symbol streams 19o from the outbound data, and the outbound symbol streams include the 0FDM frames described in the text. For example, if the mode selection signal indicates that the transmitting antenna is being used in the selected specific mode tomorrow, the baseband processing module will send outbound single-stream symbol stream. Optionally, if the mode selection signal indicates or 4 antennas, the baseband processing module will generate 2, 3, or 4 outbound symbol streams corresponding to the number of antennas from the outbound data 190, and the baseband processing module 164 The number of outbound symbol streams generated. The transmitters 168-172 in H number can be used to convert the outbound symbol stream 190. , Into an outbound RF signal 192. The transmitting / receiving module 174 receives the outbound signal 192 ′ and provides a communication antenna for the outbound signal. Tian Wireless Transceiver〗 6．When in the receiving mode, the transmitting / receiving module ⑺ 24 200531465

One or more inbound RF signals are received through antennas 182-186. The transmit / receive module 174 provides an inbound egg signal 194 to one or more RF receivers 76_180. The receiver 176_180 converts the input RF signal 194 into communication information corresponding to the inbound signal stream 196 including the OFDM frame described herein. The number of inbound stream 196 corresponds to the specific mode of data reception (this mode can be any of the modes shown in Table 1-12). The baseband processing module 164 receives the inbound symbol stream 190 and converts it into an inbound data stream 198, which is provided to the hosts 18-32 through the host interface 162.

As everyone knows in the art, the tenth-scale scale rail device can be realized by using one or plural integrated circuits. For example, the host device can be implemented on a low-integral circuit, the baseband processing module 164 and the memory 166 can be implemented on a second integrated circuit, and the components without Weixiang Village except for the field 18 can be implemented in a third integrated circuit. Implemented on the circuit. In another implementation office, wireless transceiver can be implemented on a single integrated circuit. For another example, the processing mode of the host device and the baseband processing module 164 may be shared processing devices on the single-integrated circuit and the memory 52 and the memory 166 may be on the single-integrated circuit and / or The _fine_like integrated electric power of the weighing 164 is realized. "Dou" is also known by Mbei, and the term "sufficiently and similarly," as used herein, provides a communication term and / or terminology that permits Kom. This industry allows Compatibility ranges from less than 25 200531465 articles, and corresponding but not limited to, component values, integrated circuit processing changes, temperature changes, raising and lowering, and / or thermal noise. The inter-language correlation is from Small percentage difference to large #_ difference. Those skilled in the art can also know that the term "operably connected" used in the text to cover other components, elements, circuits, or surface groups directly connected and Indirect connection, however, 'indirect connection, interactive components, elements, circuits or modules do not modify the signal information but need to adjust the electrical level, scale and / or energy level. As known to those skilled in the art, it can be inferred Connection (that is, "a component is connected to another component through an interface") includes direct and indirect connections between components, such as "operably connected." Those of ordinary skill in the art may know that the term "effective comparison," as used herein, means a comparison of two or more elements, terms, signals, etc., to provide a predictable link. For example, the predictable link is Signal 丨 has a larger order of magnitude than signal 2, that is, when the magnitude of signal 1 is greater than the magnitude of signal 2 or the magnitude of signal 2 is smaller than the magnitude of signal 1, effective comparison can be obtained. The above discussion discloses various uses Methods and equipment for generating and receiving OFDM ducks. Those skilled in the art can know that other embodiments can be obtained by the method taught by the present invention without exceeding the scope of the claims. Mode selection table: Bit rate

Modulation coding NBPSC rate NCBPS NDBPS EVM smart ACR AACR sensitivity 26 200531465

Power spectral density mask code frequency offset ~ ldBr — ~ " — ~~ — -9MHz ~ 9 MHz ~ 0 ------ ~~ +/- 11 MHz -20 ---- ~~-+/- 20 MHz '-28 ----- ten / * ou ivinz Han and eight ------ ~ ^ 50 ~ ~ --- Table 4: 5GHz, 20MHz wide, 54Mbps maximum bit rate

Bit I modulation = ZL · ^ _ 丨 NDBPS 丨 EVM 丨 Spirit | ACR 丨 AACR 27 200531465 Yuan rate code rate sensitivity 6 BPSK 0.5 1 48 24 -5 -82 16 32 9 BPSK 0.75 1 48 36 -8 -81 15 31 12 QPSK 0.5 2 96 48 -10 -79 13 29 18 QPSK 0.75 2 96 72 -13 -77 11 27 24 16-QAM 0.5 4 192 96 -16 -74 8. .24 36 16-QAM 0.75 4 192 144 -19- 70 4 20 48 64-QAM 0.666 6 288 192 -22 -66 0 16 54 64-QAM 0.75 6 288 216 -25 -65 -1 15 Table 5: Carrier selection in Table 4

Channel frequency (MHz) National channel frequency (MHz) Country 240 4920 Japan 244 4940 Japan 248 4960 Japan 252 4980 Japan 8 5040 Japan 12 5060 Japan 16 5080 Japan 36 5180 USA / Europe 34 5170 Japan 40 5200 USA / Europe 38 5190 Japan 44 5220 USA / Europe 42 5210 Japan 48 5240 USA / Europe 46 5230 Japan 52 5260 USA / Europe 56 5280 USA / Europe 60 5300 USA / Europe 64 5320 USA / Europe 100 5500 USA / Europe 104 5520 USA / Europe 108 5540 USA / Europe 112 5560 USA / Europe 116 5580 USA / Europe 120 5600 USA / Europe 124 5620 USA / Europe 128 5640 USA / Europe 132 5660 USA / Europe 136 5680 USA / Europe 140 5700 USA / Europe 149 5745 USA 153 5765 USA

28 200531465

157 5785 USA 161 5805 USA 165 5825 USA Table 6: 2.4GHz, 20MHz channel bandwidth, 192Mbps maximum bit rate Bit rate TX antenna ST code rate modulation code rate NBPSC NCBPS NDBPS 12 2 1 BPSK 0.5 1 48 24 24 2 1 QPSK 0.5 2 96 48 48 2 1 16-QAM 0.5 4 192 96 96 2 1 64-QAM 0.666 6 288 192 108 2 1 64-QAM 0.75 6 288 216 18 3 1 BPSK 0.5 1 48 24 36 3 1 QPSK 0.5 2 96 48 72 3 1 16-QAM 0.5 4 192 96 144 3 1 64-QAM 0.666 6 288 192 162 3 1 64-QAM 0.75 6 288 216 24 4 1 BPSK 0.5 1 48 24 48 4 1 QPSK 0.5 2 96 48 96 4 1 16 -QAM 0.5 4 192 96 192 4 1 64-QAM 0.666 6 288 192 216 4 1 64-QAM 0.75 6 288 216

Table 7: Carrier selection of Table 6

Channel frequency (MHz) 1 2412 2 2417 3 2422 4 2427 5 2432 6 2437 7 2442 8 2447 9 2452 10 2457 11 2462 12 2467 29 200531465 Table 8: 5GHz, 20MHz channel bandwidth, 192Mbps maximum bit rate, bit rate TX antenna ST code rate modulation code rate NBPSC NCBPS NDBPS 12 2 1 BPSK 0.5 1 48 24 24 2 1 QPSK 0.5 2 96 48 48 2 1 16-QAM 0.5 4 192 96 96 2 1 64-QAM 0.666 6 288 192 108 2 1 64- QAM 0.75 6 288 216 18 3 1 BPSK 0.5 1 48 24 36 3 1 QPSK 0.5 2 96 48 72 3 1 16-QAM 0.5 4 192 96 144 3 1 64-QAM 0.666 6 288 192 162 3 1 64-QAM 0.75 6 288 216 24 4 1 BPSK 0.5 1 48 24 48 4 1 QPSK 0.5 2 96 48 96 4 1 16-QAM 0.5 4 192 96 192 4 1 64-QAM 0.666 6 288 192 216 4 1 64-QAM 0.75 6 288 216

Table 9: Carrier selection in Table 8

Channel frequency (MHz) National channel frequency (MHz) 'Country 240 4920 Japan 244 4940 Japan 248 4960 Japan 252 4980 Japan 8 5040 Japan 12 5060 Japan 16 5080 Japan 36 5180 USA / Europe 34 5170 Japan 40 5200 USA / Europe 38 5190 Japan 44 5220 USA / Europe 42 5210 Japan 48 5240 USA / Europe 46 5230 Japan 52 5260 USA / Europe 56 5280 USA / Europe 60 5300 USA / Europe 64 5320 USA / Europe 100 5500 USA / Europe 104 5520 USA / Europe 108 5540 USA / Europe 112 5560 USA / Europe 30 200531465 Table 10 · 5GHz, 40MHz channel and 486Mbps maximum serial transmission bit rate bit rate TX antenna ST code rate modulation code rate NBPSC 13.5Mbps 1 1 BPSK 0.5 1 27Mbps 1 1 QPSK 0.5 2 54Mbps 1 1 16-QAM 0.5 4 108Mbps 1 1 64-QAM 0.666 6 121.5Mbps 1 1 64-QAM 0.75 6 27Mbps 2 1 BPSK 0.5 1 54Mbps 2 1 QPSK 0.5 2 108Mbps 2 1 16-QAM 0.5 4 216Mbps 2 1 64 -QAM 0.666 6 243Mbps 2 1 64-QAM 0.75 6 40.5Mbps 3 1 BPSK 0.5 1 81Mbps 3 1 QPSK 0.5 2 162Mbps 3 1 16-QAM 0.5 4 324Mbps 3 1 64-QAM 0.6 66 6 365.5Mbps 3 1 64-QAM 0.75 6 54Mbps 4 1 BPSK 0.5 1 108Mbps 4 1 QPSK 0.5 2 216Mbps 4 1 16-QAM 0.5 4 432Mbps 4 1 64-QAM 0.666 6 486 Mbps 4 1 64-QAM 0.75 6

116 5580 USA / Europe 120 5600 USA / Europe 124 5620 USA / Europe 128 5640 USA / Europe 132 5660 USA / Europe 136 5680 USA / Europe 140 5700 USA / Europe 149 5745 USA 153 5765 USA 157 5785 USA 161 5805 USA 165 5825 USA Table 11: Power Spectral Density Mask Codes of Table 10 Power Spectral Density Mask Codes Frequency Offset I 2dBr 31 200531465 -9MHz ~ 9 MHz------------ 〇 ___— +/- 21 MHz--20. +/- 30 MHz -28 +/- 40 MHz and more -50 __ —- Table 12: Selected channel frequency of the carrier of Table 10 (MHz) National channel frequency (MHz) Country 242 4930 Japan __ 250 4970 ～ '~ — ~ — Japan .Mon 12 5060 Japan Mon ^ 38 — 38 5190 — USA / Europe 36 5180 Japan 46 5230 — USA / Europe 44 5520 JaPiiL ·-54 5270 USA / Europe __ 一 — 62 5310 ~ —-— USA / Europe --- A— 102 5510 USA / Europe ------ 110 5550 ^ A USA / Europe ___A-118 5590 s— USA / Europe ____— 126 5630 USA / Europe 134 5670 ^ USA / Europe I ——— 151 5755 I USA 159 5795 'USA ____ [Schematic Brief description] The first diagram is a schematic diagram of subcarrier allocation of an existing OFDM frame; the second diagram is a structural block diagram of a wireless communication system for an apparatus and method for generating an orthogonal frequency division multiplex frame in wireless communication according to the present invention; The third figure is a block diagram of the structure of a wireless communication device for the device and method for generating an orthogonal frequency division multiplexing frame in wireless communication according to the present invention; the fourth figure is a block diagram for generating an orthogonal frequency division multiplexing frame in wireless communication according to the present invention; Schematic diagram of wireless communication of equipment and method. The fifth diagram is a schematic diagram of OFDM frame subcarrier allocation of the equipment and method for generating orthogonal frequency division multiplexing frames in wireless communication of the present invention. 32 200531465 The sixth diagram is wireless of the present invention. Another schematic diagram of the subcarrier allocation of the OFDM frame in the device and method for generating orthogonal frequency division multiplexing in communication; the seventh diagram is a comparison table between 8G2.11a and the narrow channel application of the present invention; the eighth diagram is Schematic diagram of OFDM baseband money and corresponding DC notch filters and wave generators for the equipment and method for generating orthogonal frequency division multiplex buildings in wireless communication according to the present invention; the ninth figure is generated during wireless communication according to the present invention. Schematic diagram of the device and method for cross-frequency division multiplexing frames for narrow channel 0DFM frame subcarrier allocation; # The tenth figure is a multiple access device and method for generating orthogonal frequency division multiplexing frames in wireless communication according to the present invention. A block diagram of a structure of a wireless communication system is provided. The eleventh figure is a block diagram of a structure of a wireless communication device of the device and method for generating an orthogonal frequency division multiplex frame in the wireless communication of the present invention. [Description of main component symbols] Communication system 10 base station or access point] 2, 14, 16 Laptop host 18, 26 Personal digital assistant host 20, 30 Mobile phone host 22 > 28 Personal computer host 24, 32 Network hardware Body 34 LAN connection 36, 38, 40 WAN connection 42 Processing module 50 Memory 52, 75 Wireless transceiver interface 54 Output interface 56 Input interface 58 Wireless transceiver 60 Host interface 62 Digital reception as processing module 64 Analog digital conversion Receiver 66 33 200531465 Filter / gain module 68, 80 Receiver filter module 71 Send / receive switch 73 Digital transmitter processing module 76 Receiver local oscillation signal 81 Send local oscillation signal 83 Transmitter filter, waver module 85 Inbound RF signal 88 Inbound data 92 Outbound baseband signal 96 Transmitter 100 oroM frame 104 Data section 108 Signal information 112 Wireless transceiver 160 Memory 166 T / R module 174 Antenna 182, 184, 186 Outbound symbol stream 190 Inbound RF signal 194 Input data 198 • IF hybrid down conversion module 70 Low noise amplifier 72 Local oscillation Group 74 Digital to Analog Converter 78 IF Hybrid Up-Conversion Module 82 Power Amplifier 84 Antenna 86 Wheel Out Data 188 Outbound RF Signal 192 Inbound Symbol Stream 196 LO Module 200 90 90 94 98 102 106 110 Inbound Baseband Signal Out Station data outbound RF signal receiver front data training information data domain baseband processing module RF transmitter RF receiver 114, 116, 118 164 168, 170, 172 176, 178, 180

34 200531465 Mode selection signal 202

35

Claims (1)

200531465 10. Scope of patent application: A method for generating orthogonal frequency division multiplexing (OFM) frames for wireless communication, including the following steps: generating pre-data of orthogonal frequency division multiplexing frames, The preceding data includes training information and signal information; and data blocks for generating complex orthogonal frequency division multiplexing frames, wherein each data block includes a plurality of subcarriers, and at least some of the data blocks include a maximum of three assigned control blocks. k " 5 tiger subcarrier. 2. The method for generating an orthogonal frequency division multiplexed frame for wireless communication according to item 1 of the scope of the patent application, further comprising: transmitting the orthogonal frequency division multiplexed frame on a narrowband channel, wherein the narrowband The channel has a channel width of less than 20 mega-Hertz. 3. For the method for generating orthogonal frequency division multiplexed frames for scales described in the application for special fiber enclosures, wherein the step of generating plural data blocks includes: using each of the subcarriers of at least part of the data columns +7 and _7 to pass data 'and zero the subcarriers +1 and -i for each of the at least part of the data block. 4. The method for generating an orthogonal frequency division multiplexing building for wireless communication as described in item i of the scope of the patent application, wherein the step of generating a plurality of listening blocks includes: using each of the subcarriers of the at least part of the data block +21 and _21 to pass data 'and zeroing the subcarriers +1 and] of each of said at least part of the data. 5, 5, please apply for a patent. The method of generating orthogonal frequency division multiplexing wireless communication, wherein the step of generating a complex block includes: 36 200531465 subcarriers for each at least part of the complex data block +1 and -1 bits are zeroed; · For at least one of the at least part of the data column, use subcarriers +7 and -7 to transfer data; and for at least one of the other at least part of the data block, use the subcarrier and- 21 to pass information. 6. The method for generating orthogonal frequency division multiplexing frames for wireless communication as described in item 1 of the scope of the patent application, wherein the step of generating pre-data includes: generating L to be used to indicate which of said complex numbers The subcarrier frequency will be assigned a control signal. 7. A method for generating orthogonal frequency division multiplexed frames for multiple input multiple output (MIMO) wireless communication, the method comprising: converting a data stream into a complex data stream; and converting the complex data stream The number of data conversion domains is positive, and each of the orthogonal frequency division multiplexing blocks includes pre-data with training information and signal information. Each of the orthogonal frequency division multiplexing frames includes a complex data column. Each of the Zhenglu crossover frequency division multiplexing resources includes a complex _load_rate, which includes at least a part of the positive frequency multiplexing data block including up to three subcarrier frequencies to which control signals are assigned. 8. The method for generating a positive-parent frequency-division multiplexed frame for multiple-input multiple-output wireless communication as described in item 7 of the scope of patent application, wherein at least part of the data columns of the orthogonal frequency-division multiplexed frame includes: 37 200531465 Subcarriers +7 and -7 to transmit data and each subcarrier +21 and _21 to transmit control signals. 9. The method for generating an orthogonal frequency division multiplexing frame for multiple-input multiple-output wireless communication as described in item 7 of the scope of the patent application, wherein the at least part of the resources in the orthogonal frequency division multiplexing frame includes: Subcarriers +21 and -21 are used to transmit data and each subcarrier is +7 and 々 bits to transmit control signals. 10. The method for generating orthogonal frequency division multiplex frames for multiple-input multiple-output wireless communication as described in item 7 of the scope of patent application, wherein at least part of the data shed in the orthogonal frequency division multiplex frame includes: At least one of the at least part of the data columns uses subcarriers +7 and _7 to transmit data, and at least one of the at least part of the data columns uses subcarriers +21 and _21 to transmit data. 11. The method for generating MIMO wireless communication as described in item 7 of the scope of the patent application, further comprising: generating signal information to indicate which of the plurality of subcarrier frequencies Will be dispatched as a control signal. 12. The method for generating an orthogonal frequency division multiplexing frame for multiple-input multiple-output wireless communication as described in item 7 of the scope of patent application, wherein the step of converting the complex data stream into a complex orthogonal frequency division multiplexing frame step Including: 38 200531465 generating a first orthogonal frequency division multiplexing block, the first orthogonal frequency division multiplexing block includes a complex data block with four control signals, and generating the remaining orthogonal frequency division multiplexing block The remaining orthogonal frequency division multiplexing frame includes a plurality of data blocks of less than four control signals. I3. A method for receiving orthogonal frequency division multiplexing_ for wireless communication, the method comprising: receiving the orthogonal frequency division multiplexed pre-data, the pre-data packet pulling training information and signals Information; # receive the plurality of data shelves of the orthogonal frequency division multiplexing building, wherein each of the data blocks includes a complex carrier, wherein, as indicated by the message, how many partial data blocks include a maximum of three data blocks; Assigning a subcarrier frequency of a control signal; and converting the plurality of data blocks into internal data. One heart is like the thing. The thirteenth syrian Lin Wu Lai receiving shirt, the method of multiplexing the frames, further includes ... hunting the narrow-bandwidth channel to receive the orthogonal frequency division multiplexing dove, wherein the climbing bandwidth The channel has a channel width of less than twenty million Herrons. 15 = The method of receiving orthogonal frequency division multiplexing for wireless communication described in item 1: 3 of the May patent application, its method of receiving the plurality of data, and the step of blocking further includes: ...--said at least Partial data block subcarriers +7 and _7 recover data; and each subcarrier to / heart shell block ++ 1 and small recovery zero data-data) ° '39 200531465 Secret scale communication described in item 13 _ Wei Orthogonal Frequency Division, where the receiving of the complex data block includes: 16. For the method of multiplexing frames in the scope of the patent application, each of the sub-carriers to y points is used to recover the data; And recovering zero data from the subcarrier + ι 至少 of the mother-said at least part of the data block. 7. = The method for receiving orthogonal frequency division multiplexing building for wireless communication as described in item 13 of the scope of patent application, the step of receiving the dragon bar includes: a mother carrier to a subcarrier of a p-block data block +1 and _1 restore zero data; for at least one of the at least part of the data columns, recover data from the subcarriers η and _7; and for at least one of the other at least part of the data columns, the subcarriers +21 and _21 Restore data. 18. A method for receiving orthogonal frequency division multiplexing frames for multiple people and multiple wireless communications, the method comprising: receiving a plurality of orthogonal frequency division multiplexing frames, wherein each orthogonal frequency division multiplexing frame Including pre-data with training information and signal information, each orthogonal frequency division multiplexed frame includes a complex data block, and each of the orthogonal frequency division multiplexed frame data columns includes a plurality of subcarrier frequencies, wherein the signal information The indicated at least one orthogonal frequency division multiplexing frame data column includes at most three complex subcarrier frequencies to which control signals are assigned; converting the complex orthogonal frequency division multiplexing frame into a complex data stream; And converting the plurality of data streams into one data stream. 200531465 19. The method for receiving-orthogonal frequency division multiplexing frames for multiple-input multiple-output wireless communication as described in item 18 of the scope of patent application, wherein the at least one of the complex orthogonal frequency division multiplexing frames At least part of the complex data block includes: subcarriers +7 and -7 to transmit data and each subcarrier +21 and _21 to transmit control signals. 20 The method for receiving a positive-parent frequency-division multiplexed frame for multiple-input multiple-output wireless communication according to item 18 of the scope of patent application, wherein the at least one of the plurality of orthogonal frequency-division multiplexed frames has a complex number The data block includes: φ subcarriers +21 and -21 to transmit data and each subcarrier +7 and _7 to transmit control signals. The method for receiving positive-parent frequency-division multiplexed frames for multiple-input multiple-output wireless communication as described in claim 18 of the patent scope, wherein at least one of the plurality of orthogonal frequency-division multiplexed frames has at least a part of the complex data Columns include: for at least one of the at least part of the plural data column, recover data from the subload +7 and _ ?; and call for at least another-to say at least part of the plural data column, from the subcarrier +21 and -21 Restore data. 22. As described in the patent, please refer to the 18th rhyme of the patent. The reception of multiple wireless communications = the method of crossover frequency division and multiplication. The number of positive divisions includes: The plurality of data signals of the four control signals are suspended; and 41 200531465 the remaining positive parent frequency division multiplexed frame includes the plurality of data signals having less than four control signals. 23. A radio frequency transmitter comprising: a baseband processing module that can be connected to generate an orthogonal frequency division multiplexed frame by: generating pre-data of the orthogonal frequency division multiplexed frame, wherein the pre- The data includes training information and signal information, and a plurality of data blocks for generating the orthogonal frequency division multiplexing frame, wherein each of the complex body blocks includes a plurality of job waves, and at least part of the data on which it depends is stored until A plurality of sub-carrier frequencies to which a control signal is assigned; and a radio frequency transmitting part can be connected for converting the orthogonal frequency division multiplexing frame to an output RF signal. 24 25 2. The radio-light energy described in item μ of the patent application scope, further comprising: generating a narrow bandwidth channel for transmitting the orthogonal frequency division multiplex duck, wherein the narrow bandwidth channel has less than twenty million Hertz channel width. = Applicable patent_ The RF transmitter described in item B, wherein the generating of the plurality of data blocks includes: / Subcarriers and tribute materials held by at least part of the plurality of data described by the mother; and 26 A ^ said at least The subcarriers of some complex data blocks are +1 and -1 zeroed. 26. The RF transmitter according to item 23 of the patent application, wherein the plurality of tribute blocks include: 42 200531465 at least part of the subcarriers of the plurality of data blocks described in the parent +21 and -21 to transmit and send data ; And „at least a part of the plurality of data blocks of the data carrier are supplemented by +1 and -1 to zero. 27. The radio frequency transmitter according to item 23 of the scope of patent application, wherein generating the plurality of data blocks includes: each One of the at least part of the plurality of subcarriers +1 and -1 are zeroed; for at least one of the at least part of the plurality of subcarriers, the subcarriers +7 and _7 are used to transmit data; and ^ for at least another One said at least part of the plurality of data blocks, using subcarriers and -21 to transmit data. 28. The radio frequency transmitter as described in the patent application scope of item MM, wherein the generating of said pre-data includes: The k number information is used to indicate which of the plurality of subcarrier frequencies will be assigned a control signal. 29. A radio frequency transmitter includes: a baseband processing module that can be connected to generate positive signals for multiple-input multiple-output wireless communication Crossover frequency Use frames by: converting a data stream into a complex data stream, and converting the complex data stream into a complex orthogonal frequency division multiplexing frame, where each orthogonal frequency division multiplexing frame includes training information and signals The pre-data of the information, each orthogonal frequency division multiplexing frame includes a complex data block, wherein each of the complex numbers is 43 200531465 each of the complex data columns of the cross frequency division multiplexing frame includes a complex subcarrier frequency, At least one of the complex orthogonal frequency division multiplexed frames has at least a part of the complex number, and the shell material column includes at most three complex subcarrier frequencies to which a control signal is assigned; and the radio frequency transmission part can be connected for converting The complex orthogonal frequency division multiplexing frame is a complex output RF signal. 30. The radio frequency transmitter according to item 29 of the scope of patent application, wherein at least a part of the complex number of the at least one complex orthogonal frequency division multiplexing frame The data column includes: call for subcarriers +7 and -7 to transmit data and each subcarrier +21 and _21 for control signals. 31. The RF transmitter according to item 29 of the patent application scope, wherein The at least one complex data column of at least one part of the complex positive-parent frequency division multiplex frame includes: sodium carrier +21 and -21 transmission data and each subcarrier +7 and _7 transmission control signal. 32. Such as the scope of patent application The radio frequency transmitter according to item 29, wherein the at least one complex data column of the at least one complex orthogonal frequency division multiplexed frame includes: using at least one of the at least one complex data block, and Carrier +7 and _7 to transmit data; and to at least another said at least part of the plural data block, using the subcarrier and -21 to transmit the data. 33 RF transmitter as described in claim 29 of the patent scope, Among them, the baseband unit 44 200531465 further has the following functions: 'Generate the signal information to indicate which of the plurality of sub-carrier frequencies will assign control signals. 34. The radio frequency transmitter according to item 29 of the scope of patent application, wherein converting the complex data stream into a complex orthogonal frequency division multiplexing frame includes: generating a first orthogonal frequency division multiplexing frame including four controls The plurality of data blocks of the signal; and generating the remaining positive parent frequency division multiplexing frame includes the plurality of data blocks having less than four control signals. 35. A radio frequency receiver comprising: a radio frequency receiving part connectable for converting an input RF signal into an orthogonal frequency division multiplexing medium; and a baseband processing module connectable for: receiving the orthogonal frequency division multiplexing frame Pre-data, wherein the pre-data includes training information and signal information; and · receiving a plurality of data blocks for the orthogonal frequency division multiplexing frame, wherein each of the plurality of data blocks includes a complex thief wave term, which The assignment of # 由 信号: # 讯 at least part of the plurality of data blocks includes at most three of the plurality of subcarrier frequencies to which a control signal is assigned; and converting the plurality of data blocks into input data. 36. The radio frequency receiver according to item 35 of the scope of patent application, wherein the radio frequency receiver 45 200531465 receiver is further configured to receive an orthogonal frequency division multiplexing frame through a narrowband channel, wherein the narrowband channel has a bandwidth less than 20mHz. 37. The radio frequency receiver according to item 35 of the scope of patent application, wherein receiving the plurality of lean materials sheds comprises: recovering by each of the at least partial subcarriers of the plurality of data blocks +7 and _7 to recover Poor data; and recovery of null data with subcarriers and _l of at least part of the complex data block described by the parent. 38. The radio frequency receiver according to item 35 of the scope of patent application, wherein the receiving of the plurality of data blocks includes: goods and materials; and each of the at least part of the plurality of data blocks of subcarriers and _21 recovery " The subcarriers of the multiple data blocks of each of the to) part +1 and] restore to zero. The RF data receiving complex data block as described in item 35 of the application for a special fiber channel includes: a device, wherein the receiving said from each—the The sum of at least part of the complex data is used to restore zero poverty; for at least one of the restored data; and for at least one other part of the Wei data that is lost, from the subcarriers +7 and -7 Recover data from the subcarriers +21 46 200531465 and -21. 40. A radio frequency receiver, including ... The RF receiving part for MIMO wireless communication can be connected for converting the input RFk number to complex orthogonal frequency division multiplexing; and the baseband processing module can be connected for receiving the complex orthogonal frequency division Multiplexing frame, wherein each orthogonal frequency division multiplexing frame includes pre-data with training information and signal information, wherein each said complex orthogonal frequency division multiplexing frame includes complex data blocks, wherein each said complex number Each of the data blocks of the orthogonal frequency division multiplexing frame includes a plurality of subcarrier frequencies, wherein at least one part of the complex data of the at least one of the plurality of orthogonal frequency division multiplexing frames is assigned by a signal of the yoke information. The column includes at most three of the complex subcarrier frequencies to which a control signal is assigned; converting the complex orthogonal frequency division multiplexed frame into a complex data stream; and converting the complex lean stream into a data stream. 41. The radio frequency receiver according to item 40 of the scope of patent application, wherein at least part of the complex data columns of the at least ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ subcarriers +7 and -7 To transmit data and each subcarrier +2 丨 and 丨 to transmit control signals. 42. The radio frequency receiver according to item 40 of the scope of patent application, wherein the at least part of the at least part of the complex orthogonal frequency division multiplexed frame includes at least a part of the complex data column including the subcarriers +21 and -21 for transmission Data and each subcarrier +7 and _7 are used to transmit control signals. ^ 43. The radio frequency receiver according to item 40 of the scope of the patent application, wherein the plurality of data columns of at least part of the at least one or more complex orthogonal frequency division multiplexing frames include: for at least one of the at least part of Plural data columns, recovering data from subcarriers +7 and _7; and recovering at least another said at least part of the plural data blocks, recovering data from subcarriers +21 and -21. 44. The radio frequency receiver according to item 40 of the scope of application for a patent, wherein the complex positive-frequency cross-multiplexing frame includes: a first orthogonal frequency-division multiplexing frame including the complex data with four control signals The shed, and each remaining positive parent frequency division multiplexed frame includes the plurality of data columns with less than four control signals. 48