CN101841499B - Transmission parameter signaling module and transmission parameter signaling decoding method - Google Patents

Abstract

A transmission parameter signaling module and a transmission parameter signaling decoding method are suitable for providing an operating parameter to a receiver for demodulation of the receiver, and comprise: a pre-processing device for receiving a plurality of transmission parameter signaling and a plurality of channel state information corresponding to the transmission parameter signaling, and processing the transmission parameter signaling to generate a processed transmission parameter signaling; a transmission parameter signaling decoder, which decodes the corresponding processed transmission parameter signaling according to the channel state information to obtain a working mode corresponding to each processed transmission parameter signaling; and a table look-up device for determining the working parameters according to the working mode corresponding to the processed transmission parameter signaling and transmitting the working parameters to the receiver.

Description

Transmission parameter signaling module and transmission parameter signaling decoding method

technical field

The present invention mainly relates to information decoding, in particular to a method and device for decoding terrestrial digital television national standard receiver system information, especially to a transmission parameter signaling module and a transmission parameter signaling decoding method.

Background technique

A digital terrestrial TV national standard (Digital Terrestrial Multimedia Broadcasting, hereinafter referred to as DTMB) receiver system information decoding, terrestrial digital TV national standard for the People's Republic of China to develop digital TV and mobile digital broadcasting system, similar to the European regulations Digital Video Broadcasting (DVB for short). The terrestrial digital TV national standard receiver has a total of 24 working modes. When the working mode and parameters match, the receiver can decode normally. The operating mode of the transmitter can be known or unknown. When the receiver does not know the working parameters to be received, it is usually necessary to entrain the working mode information between the signals, that is, use Transmission Parameter Signal (TPS for short) to transmit the working mode (working mode), transmission parameters Signaling is the source of receiver system operating parameters and occupies 36 subcarriers of the 3780 subcarriers in a data frame. The 36 subcarriers carrying transmission parameter signaling signals are placed in a data frame according to the national standard for terrestrial digital television. inside. Transmission parameter signaling includes carrier model, modulation type, low density parity check code (Low density parity check, LDPC for short) coding rate and interleaving depth and other parameter information, as well as parity superframe header information. Superframe header information plays an important role in the LDPC decoding process, so solving reliable transmission parameter signaling information and accurate superframe header information can improve system performance, so the correctness of transmission parameter signaling is related to whether the entire receiver can working normally. Generally speaking, when the transmission parameter signaling outputs wrong system parameters, the Forward Error Correction (FEC) of the receiver cannot be decoded normally, and the receiver system is unlocked (UNLOCK), causing the state machine to reset. It takes a long time for the receiver to completely restore normal operation. When the decoding result of the transmission parameter signaling is unstable, the state machine will be repeated, and the decoding work of the receiver will be in an unstable situation, which will lead to an increase in the error rate of the system. FIG. 1 is a traditional transmission parameter signaling demodulation device 1 . The pseudo-random code sequence generator 11 produces a pseudo-random code sequence (Pseudo-Noise code, referred to as PN code), and the pseudo-random code sequence is multiplied one-to-one by a data Data to become a data column vector Data vector, wherein the data Data is a transmission parameter signal order information. The multiplier 12 carries out the inner product of the data column vector Data vector formed by the data and 32 pairs of Fahrenheit codes (Walsh Code), and then generates 32 groups of inner product values, and then uses the comparator 13 to find the largest inner product value, according to the The rule finds the transmission parameter signaling corresponding to the maximum inner product value. This process can be regarded as a maximum likelihood process (Maximum likelihood process, ML process for short). The table lookup device 14 finds the working parameters WP (working parameters) corresponding to the transmission parameter signaling by using the table lookup. Although the traditional transmission parameter signaling demodulation method has a simple structure, it is easily affected by noise (Noise), especially when it is affected by deep channel fading (Deep Channel Fading), the transmission parameter signaling is easy to solve errors, resulting in an unstable situation in the receiver system , leading to an increase in the demodulation error rate of the system.

Contents of the invention

An embodiment of the present invention proposes a transmission parameter signaling module, which is suitable for providing a working parameter to a receiver for demodulation by the receiver, including: a pre-processing device for receiving a plurality of transmission parameter signaling and corresponding A plurality of channel state information in the transmission parameter signaling, processing the transmission parameter signaling to generate a processed transmission parameter signaling; a transmission parameter signaling decoder, decoding the corresponding channel state information according to the channel state information processed transmission parameter signaling to obtain a working mode corresponding to each of the processed transmission parameter signaling; and a table look-up device for determining the operating parameters, and transmitting the operating parameters to the receiver.

In addition, an embodiment of the present invention proposes a transmission parameter signaling module, which is suitable for providing a working parameter to a receiver for demodulation by the receiver, including: a pre-processing device for receiving a plurality of transmission parameter signaling , filtering the transmission parameter signaling to generate a processed transmission parameter signaling; a transmission parameter signaling decoder, decoding the processed transmission parameter signaling, so as to obtain the information corresponding to each of the processed transmission parameter signaling a working mode; and a table look-up device, which determines the working parameter according to the working mode corresponding to the processed transmission parameter signaling, and transmits the working parameter to the receiver.

In addition, an embodiment of the present invention proposes a transmission parameter signaling decoding method, which is applicable to a receiver, including: receiving multiple transmission parameter signaling and multiple channel state information corresponding to the transmission parameter signaling; filtering the transmission parameter signaling to generate a processed transmission parameter signaling; decoding the corresponding processed transmission parameter signaling according to the channel state information to obtain a job corresponding to each of the processed transmission parameter signaling mode; determine the operating parameter according to the operating mode corresponding to the processed transmission parameter signaling; and transmit the operating parameter to the receiver.

The present invention can effectively eliminate a lot of noise by using the filter, and use the channel state information to make the transmission parameter signaling effectively reduce the influence of deep fading in the multi-carrier system, which is beneficial to improve the decoding performance.

Description of drawings

FIG. 1 is a block diagram of a traditional transmission parameter signaling demodulation method.

FIG. 2 is a block diagram showing a transmission parameter signaling module 2 according to an embodiment of the present invention, which is suitable for providing an operating parameter to a receiver for demodulation by the receiver.

FIG. 3 is a block diagram showing a pre-processing device 21 according to an embodiment of the present invention.

FIG. 4 is a block diagram showing a superframe device 25 according to an embodiment of the present invention.

FIG. 5 is a block diagram of the internal structure of the transmission parameter signaling decoder 22 according to an embodiment of the present invention.

Fig. 6 is a flowchart of a transmission parameter signaling method according to an embodiment of the present invention.

Reference number

1～Traditional transmission parameter signaling demodulation device

11～Pseudo-random code sequence generator

12～multiplier

13 ~ Comparator

14 ~ table lookup device

2～transmission parameter signaling module

21 ~ pre-processing device

22～transmission parameter signaling decoder

23 ~ Transmission parameter signaling output latch

24～Meter look-up device

25～super frame device

211～equalizer data storage device

212～superframe pre-detection device

213～filter

251～Super frame position recording device

252～preset interval search device

253 ~ super frame genlock device

221～transmission parameter signaling register

222～Channel status information register

223～maximum likelihood correlator

224～parameter signaling code word read-only memory

225～comparator

Detailed ways

In order to make the stated purpose, features and advantages of the present invention more comprehensible, a preferred embodiment is specifically cited below, together with the accompanying drawings, as follows:

Preferred embodiments according to the present invention will be described below. It must be noted that the present invention provides many applicable inventive concepts, and the specific embodiments disclosed are only illustrative of specific ways to achieve and use the present invention, and are not intended to limit the scope of the present invention.

FIG. 2 is a block diagram of a transmission parameter signaling module 2 according to an embodiment of the present invention, which is suitable for providing a working parameter WP to a receiver for demodulation by the receiver. The pre-processing device 21 receives the equalizer signal EQ_IN containing the transmission parameter signaling TPS and a plurality of channel state information CSI corresponding to the transmission parameter signaling TPS, and the channel state information CSI indicates the channel fading conditions experienced by different symbols in the frame . The pre-processing device 21 detects whether the transmission parameter signaling TPS has a pulse exceeding a predetermined threshold value, wherein the predetermined threshold value can be adjusted according to actual conditions. When the transmission parameter signaling does not have a pulse exceeding the predetermined threshold value, it means that the transmission parameter signaling has no superframe, and it means that the transmission parameter signaling is considered to be valid information, and then the time domain is performed on the transmission parameter signaling without superframe Directional filtering, filtering can use filters, such as infinite frequency response filter (Infinite impulse response, referred to as IIR), finite frequency response filter (finite impulse response, referred to as FIR) or low-pass filter (low-pass filter, referred to as LPF) etc. to eliminate a large amount of noise caused by deep fading to generate a processed transmission parameter signaling TPS'. The transmission parameter signaling decoder 22 executes a maximum likelihood process or other algorithms according to the channel state information CSI, for example, using algorithms such as code distance error correction. Decode the corresponding processed transmission parameter signaling TPS' to obtain each processed transmission parameter signaling TPS' WM(workingmode). The maximum likelihood process is to find out a set of transmission parameter signaling with the greatest correlation between the received processed transmission parameter signaling TPS′ and the corresponding transmission parameter signaling of all working modes, which is also the same as finding the inner product The transmission parameter signaling corresponding to the maximum value, and then find out a working mode corresponding to the transmission parameter signaling. The transmission parameter signaling output latch 23 has a working mode corresponding to the currently processed transmission parameter signaling, because the working mode corresponding to the transmission parameter signaling will not change drastically, so the transmission parameter signaling output lock The memory 23 decides whether to update the working mode according to whether it continuously receives the same working mode information WM corresponding to the transmitted parameter signaling, and outputs the processed transmission when changing to the working mode corresponding to the processed transmission parameter signaling A working mode information WM corresponding to the parameter signaling; when the transmission parameter signaling output latch 23 is still a working mode corresponding to the currently processed transmission parameter signaling, then output the currently processed transmission parameter signaling corresponding to A working mode information WM'. For example, originally the transmission parameter signaling output latch 23 is locked in the first working mode, when the number of the second working mode information corresponding to the transmission parameter signaling continuously received exceeds a preset threshold value, then The transmission parameter signaling output latch 23 is changed to be locked in the second working mode. Since the number of times of the command to switch the working mode must be accumulated to the preset threshold value, the transmission parameter signaling output latch 23 will perform the action of changing the working mode, so unnecessary malfunctions can be avoided. If the new working mode is received, it will be changed immediately, and the receiver will not be able to decode the Forward Error Correction (FEC) normally due to the unstable working mode, thus causing the receiver system to be unlocked. The table look-up device 24 determines the working parameter WP according to the working mode corresponding to the processed transmission parameter signaling, and transmits the working parameter WP to the receiver for demodulated data.

FIG. 3 is a block diagram of the pre-processing device 21 according to an embodiment of the present invention. The equalizer data storage device 211 receives the equalizer signaling EQ_IN containing the transmission parameter signaling TPS and a plurality of channel state information CSI, wherein the equalizer signaling EQ_IN is an OFDM signal processed by an equalizer to equalize The transmission parameter signaling TPS is obtained according to the equalizer signal EQ_IN, and the transmission parameter signaling TPS is output to the superframe pre-detection device 212 and the channel state information CSI is output to the transmission parameter signaling decoder 22 . The superframe pre-detection device 212 receives the transmission parameter signaling TPS and detects whether the transmission parameter signaling TPS has a pulse exceeding a predetermined threshold value. The predetermined threshold value can be any reasonable value. When the pulse of the threshold value, output the non-superframe transmission parameter signaling TPS1 to the filter 213; when the transmission parameter signaling has a pulse exceeding the predetermined threshold value, output an over-frame information (over-frame information) OF_IN to The superframe device 25 shown in Figure 2, therefore the transmission parameter signaling with superframe does not enter the filter 213, only the transmission parameter signaling TPS1 without superframe must be filtered by the filter 213, and due to the use of superframe pre- The detection device 212 can eliminate the transmission parameter signaling with a superframe entering the filter 213, so the pollution of the filter data by the superframe is eliminated. The filter 213 filters the transmission parameter signaling TPS1 of the non-superframe to help reduce the influence of noise, especially when the transmission parameter signaling has experienced deep channel fading, the noise will be amplified by the equalizer after the transmission parameter signaling has experienced deep channel fading, which is prone to erroneous decoding , affecting the stability of the system. Since the modulation parameters and modes of the national standard for terrestrial digital TV will not change rapidly, and for different fading channels, the variance of data changes will increase with the increase of fading depth, but the mean value does not change. Therefore, the Low-pass filtering can obtain a relatively stable DC component, and decoding with this data can obtain good performance. The filter 213 of the present invention can be an infinite frequency response filter, or a finite frequency response filter, a low-pass filter, etc. , but the structure of the finite frequency response filter is complex, and the hardware is not easy to realize. And the filtering effect is worse than the infinite frequency response filter, and the infinite frequency response filter is not as complicated as the limited frequency response filter, so the infinite frequency response filter is used for the best filtering effect. The filter 213 outputs the processed transmission parameter signaling TPS' to the transmission parameter signaling decoder 22 shown in FIG. 1 , and then uses the maximum likelihood process to obtain a working mode information corresponding to each processed transmission parameter signaling WM.

The pre-processing device 21 as shown in Figure 2 detects whether the transmission parameter signaling TPS has a pulse exceeding a predetermined threshold value, and when the transmission parameter signaling has a pulse exceeding a predetermined threshold value, it represents the occurrence of a super frame, Therefore, the pre-processing device 21 outputs a superframe information OF_IN to the superframe device 25 shown in FIG. 2 . FIG. 4 is a block diagram of a superframe device 25 according to an embodiment of the invention. The superframe position recording device 251 obtains the position of the superframe according to the superframe information OF_IN, and records the position of the superframe. The superframe position recording device can be realized by a counter, and the storage depth of the superframe position recording device can be defined according to reliability requirements. The preset interval search device 252 has a preset length of a superframe. When searching existing superframe records, judge whether the interval between the positions of two superframes satisfies the preset length of the superframe according to the existing superframe records. When the interval between the positions of the two superframes satisfies the preset length of the superframe, a superframe position locking signaling is output to lock the superframe position and clear other information in the superframe position recording device 251 . After the superframe position is locked, the superframe synchronization locking device 253 will detect the superframe information at the fixed interval position and output the signal SFRM_OUT (SUPERFRAME OUT) representing the superframe at the corresponding position to the receiver. If the number of consecutive errors detected exceeds the preset threshold value, it is considered that the superframe is unlocked, and whether it is a superframe is re-detected and the superframe search state is re-entered.

FIG. 5 is a block diagram of the internal structure of the transmission parameter signaling decoder 22 according to an embodiment of the present invention. The transmission parameter signaling decoder 22 decodes the corresponding processed transmission parameter signaling TPS′ according to the channel state information, and uses the maximum likelihood process to obtain a piece of working mode information WM corresponding to each processed transmission parameter signaling. The transmission parameter signaling register 221 receives the processed transmission parameter signaling TPS′ filtered by the infinite frequency response filter, and outputs the processed transmission parameter signaling TPS′ to the maximum likelihood correlator 223 . The channel state information register 222 stores the channel state information CSI corresponding to the processed transmission parameter signaling TPS′, so as to output the channel state information CSI to the maximum likelihood correlator 223 . The maximum likelihood correlator 223 correlates the received processed transmission parameter signaling TPS' with the transmission parameter signaling corresponding to all the working modes stored in the transmission parameter signaling codeword read-only memory 224, and performs correlation At the same time, add the weighting of the channel state information CSI of the processed transmission parameter signaling TPS' received by the channel state information register 222. The weighting size depends on the influence of the channel state information CSI. When the deep fading is serious, the channel state information CSI The weighting is increased. When the deep fading is slight, the weight of the channel state information CSI is reduced. Adjusting the weighting size according to the actual situation is more conducive to the correctness of the transmission parameter signaling decoding, and the general traditional decoding method does not take the channel state information into account. Influencing factors of CSI. The comparator 225 finds a group of transmission parameter signaling with the greatest correlation, which is also the same as finding the transmission parameter signaling corresponding to the largest inner product value. This is a maximum likelihood process, and the processed transmission parameter signaling can be obtained. Corresponding to a piece of working mode information WM, and outputting a piece of working mode information WM corresponding to the processed transmission parameter signaling to the parameter signaling output latch 23 .

Fig. 6 is a flowchart of a transmission parameter signaling method according to an embodiment of the present invention. First, receiving a plurality of transmission parameter signaling TPS (step 601), next, the superframe pre-detection device 212 detects whether the transmission parameter signaling TPS is a superframe (step 602), and also means detecting whether the transmission parameter signaling TPS has more than one The pulse of the predetermined threshold value, when the transmission parameter signaling TPS does not have the pulse exceeding a predetermined threshold value, then the transmission parameter signaling is no superframe signal, so enter step 603, in step 603, infinite frequency response filtering The filter performs filtering for the transmission parameter signaling TPS1 without a superframe. In step 604, the infinite frequency response filter 313 judges whether the output of the infinite frequency response filter is stable, and when the signal output by the infinite frequency response filter is stable and does not have a large number of fluctuations that change drastically in size, then the infinite frequency response filter If the output of the filter is stable, then enter step 605, if the output of the infinite frequency response filter is unstable, which also represents a large number of fluctuations with sharp changes in size, then return to step 602, and repeat step 602. In step 605, the TPS decoder 22 decodes the processed TPS' stably output by the infinite frequency response filter. In step 606, it is determined whether the working mode information WM corresponding to the decoded processed transmission parameter signaling is the same as the working mode information WM' corresponding to the currently processed transmission parameter signaling, and if they are the same, it means that the working mode has not been changed mode, output a working mode information WM' corresponding to the currently processed transmission parameter signaling, enter step 609, determine the working parameter WP according to the working mode information corresponding to the transmission parameter signaling in step 609, and transmit the working parameter WP to The receiver; if the decoded processed transmission parameter signaling corresponds to a working mode information WM and the currently processed transmission parameter signaling corresponds to a working mode information WM', then enter step 607, In step 607, it is detected whether a piece of working mode information WM corresponding to the processed transmission parameter signaling is continuously received, wherein the number of working mode information WM corresponding to the processed transmission parameter signaling has exceeded a predetermined threshold value, then Go to step 608. In step 608, update the working mode corresponding to the processed transmission parameter signaling to the working mode corresponding to the processed transmission parameter signaling, and output the updated corresponding transmission parameter signaling. A work mode information WM, enter step 609; when the number of work mode information WM corresponding to the processed transmission parameter signaling received continuously does not exceed a predetermined threshold value, and the current processed transmission parameter signaling corresponds to no change output the information WM' of a working mode corresponding to the currently processed transmission parameter signaling, then enter step 609, and output the working parameter WP in step 609. Step 610 The receiver demodulates according to the received working parameter WP. For example, the predetermined threshold value is preset to 5, and when a working mode corresponding to the same updated transmission parameter signaling has been received continuously for more than 5 times, then a working mode corresponding to the transmission parameter signaling will be updated; 5 times, a working mode corresponding to the original preset transmission parameter signaling is output. If it is detected that the transmission parameter signaling is a superframe signal in step 602, it also means that the detection transmission parameter signaling TPS has a pulse exceeding a predetermined threshold value, so enter step 611, and in step 611, obtain all signals according to the superframe information OF_IN The position of the pulse is recorded, the superframe position is recorded and the matching frame position is searched. In step 612, judge whether the interval between the positions of the two pulses satisfies the preset length of the superframe according to the record of the positions of the pulses, and when the interval between the positions of the two pulses meets the preset length of the superframe, the superframe position match, so the superframe position is locked, and enters in step 613; and when the interval between the positions of the two pulses does not meet the preset length of the superframe, the superframe position does not match, and the superframe position is not locked, so the superframe To unlock (Unlock), then re-enter step 602 and continue the previous steps. In step 613, after the superframe is locked, output the superframe position lock indication signal, detect the superframe information at a fixed interval position according to the superframe position lock indication signal, and output the signal SFRM_OUT representing the superframe to the corresponding position the receiver. In step 614, the receiver operates according to the signal SFRM_OUT of the superframe.

Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of the present invention should be defined by the appended claims.

Claims (15)

1. A transmission parameter signaling module, characterized in that the module is adapted to provide an operating parameter to a receiver for demodulation by the receiver, and the module includes: A pre-processing device, receiving a plurality of transmission parameter signaling and a plurality of channel state information corresponding to the transmission parameter signaling, processing the transmission parameter signaling to generate a processed transmission parameter signaling; wherein the preceding processing equipment, including: a filter for filtering the transmission parameter signaling to produce the processed transmission parameter signaling; and A superframe pre-detection device, receiving the transmission parameter signaling, and detecting whether the transmission parameter signaling has a pulse exceeding a predetermined threshold, when the transmission parameter signaling does not have a pulse exceeding the predetermined threshold outputting the transmission parameter signaling to the filter; A transmission parameter signaling decoder, decoding the corresponding processed transmission parameter signaling according to the channel state information, so as to obtain a working mode corresponding to each of the processed transmission parameter signaling; and A table look-up device, which determines the working parameters according to the working mode corresponding to the processed transmission parameter signaling, and transmits the working parameters to the receiver. 2. The transmission parameter signaling module according to claim 1, characterized in that, the pre-processing device also includes a register device for receiving an OFDM signal and the channel state information, according to the The OFDM signal obtains the transmission parameter signaling, and outputs the transmission parameter signaling to the superframe pre-detection device and outputs the channel state information to the transmission parameter signaling decoder. 3. The transmission parameter signaling module according to claim 1, wherein the module further comprises a transmission parameter signaling output latch, and the transmission parameter signaling output latch has a currently processed transmission parameter A working mode corresponding to the signaling is determined according to a predetermined method whether to update a working mode corresponding to the currently processed transmission parameter signaling to a working mode corresponding to the processed transmission parameter signaling; The predetermined method includes: when the transmission parameter signaling output latch is locked in the first working mode corresponding to the currently processed transmission parameter signaling, and continues to receive the first working mode corresponding to the transmission parameter signaling When the number of two kinds of working mode information exceeds a preset threshold value, the transmission parameter signaling output latch is changed to be locked in the second working mode. 4. The transmission parameter signaling module according to claim 1, wherein the filter is an infinite impulse response filter or a finite impulse response filter. 5. The transmission parameter signaling module according to claim 1, wherein the filter is a low-pass filter. 6. The transmission parameter signaling module according to claim 1, wherein the superframe pre-detection device detects whether the transmission parameter signaling has a pulse exceeding a predetermined threshold value, when the transmission parameter Outputting a superframe information to a superframe device when signaling has the pulse exceeding the predetermined threshold. 7. The transmission parameter signaling module according to claim 6, wherein the superframe device comprises: A superframe position recording device, which obtains the position of the pulse according to the superframe information, and records the position of the pulse; A preset interval search device has a preset length of a superframe, and judges whether the interval between the positions of two pulses satisfies the preset length of the superframe according to the record of the positions of the pulses, when the positions of the two pulses When the interval meets the preset length of the superframe, a superframe position locking signal is output; and A superframe synchronization locking device, according to the superframe position locking signal, detects the superframe information at a fixed interval position and outputs a signal representing the superframe at the corresponding position to the receiver. 8. A transmission parameter signaling module, characterized in that the module is adapted to provide an operating parameter to a receiver for demodulation by the receiver, the module comprising: A pre-processing device receives a plurality of transmission parameter signaling, and filters the transmission parameter signaling to generate a processed transmission parameter signaling; the pre-processing device includes: a filter for filtering the transmission parameter signaling to produce the processed transmission parameter signaling; and A superframe pre-detection device, receiving the transmission parameter signaling, and detecting whether the transmission parameter signaling has a pulse exceeding a predetermined threshold, when the transmission parameter signaling does not have a pulse exceeding the predetermined threshold outputting the transmission parameter signaling to the filter; A registration device, receiving an OFDM signal and a plurality of channel state information, obtaining the transmission parameter signaling according to the OFDM signal, and outputting the transmission parameter signaling to the super a frame pre-detection device and output the channel state information to the transmission parameter signaling decoder; a transmission parameter signaling decoder, decoding the processed transmission parameter signaling to obtain a working mode corresponding to each of the processed transmission parameter signaling; and A table look-up device, which determines the working parameters according to the working mode corresponding to the processed transmission parameter signaling, and transmits the working parameters to the receiver. 9. The transmission parameter signaling module according to claim 8, wherein the module further comprises a transmission parameter signaling output latch, and the transmission parameter signaling output latch has a currently processed transmission parameter A working mode corresponding to the signaling is determined according to a predetermined method whether to update a working mode corresponding to the currently processed transmission parameter signaling to a working mode corresponding to the processed transmission parameter signaling; The predetermined method includes: when the transmission parameter signaling output latch is locked in the first working mode corresponding to the currently processed transmission parameter signaling, and continues to receive the first working mode corresponding to the transmission parameter signaling When the number of two kinds of working mode information exceeds a preset threshold value, the transmission parameter signaling output latch is changed to be locked in the second working mode. 10. The transmission parameter signaling module according to claim 8, wherein the filter is an infinite impulse response filter or a finite impulse response filter. 11. The transmission parameter signaling module of claim 8, wherein the filter is a low-pass filter. 12. The transmission parameter signaling module according to claim 8, wherein the superframe pre-detection device detects whether the transmission parameter signaling has a pulse exceeding a predetermined threshold value, when the transmission parameter Outputting a superframe information to a superframe device when signaling has the pulse exceeding the predetermined threshold. 13. The transmission parameter signaling module of claim 12, wherein said superframe means comprises: A superframe position recording device, which obtains the position of the pulse according to the superframe information, and records the position of the pulse; A preset interval search device has a preset length of a superframe, and judges whether the interval between the positions of two pulses satisfies the preset length of the superframe according to the record of the positions of the pulses, when the positions of the two pulses When the interval meets the preset length of the superframe, a superframe position locking signal is output; and A superframe synchronization locking device, according to the superframe position locking signal, detects the superframe information at a fixed interval position and outputs a signal representing the superframe at the corresponding position to the receiver. 14. A transmission parameter signaling decoding method, characterized in that the method is applicable to a receiver, and the method comprises: receiving a plurality of transmission parameter signaling and a plurality of channel state information corresponding to the transmission parameter signaling; outputting the transmission parameter signaling when the transmission parameter signaling does not have the pulse exceeding the predetermined threshold according to whether the transmission parameter signaling has a pulse exceeding the predetermined threshold; and filtering the transmission parameter signaling to generate a processed transmission parameter signaling; Decoding the corresponding processed transmission parameter signaling according to the channel state information to obtain a working mode corresponding to each of the processed transmission parameter signaling; determining the working parameter according to the working mode corresponding to the processed transmission parameter signaling; and transmitting the operating parameters to the receiver. 15. The transmission parameter signaling decoding method according to claim 14, wherein the method further comprises: outputting superframe information when the transmission parameter signaling has the pulse exceeding the predetermined threshold according to whether the transmission parameter signaling has a pulse exceeding the predetermined threshold; obtaining the position of the pulse according to the superframe information, and recording the position of the pulse; According to the recording of the positions of the pulses, it is judged whether the interval between the positions of the two pulses satisfies the preset length of the superframe, and when the interval between the positions of the two pulses meets the preset length of the superframe, then outputting a decision superframe position lock signal; and Detecting the superframe information at fixed interval positions according to the superframe position locking indication signal and outputting a signal representing the superframe to the receiver at the corresponding position.

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