KR100626147B1 - A Receiving Apparatus and Method involving the Deinterleaving and Antenna Diversity control operation for quality enhancement - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a deinterleaving apparatus and method for improving reception performance, and an antenna diversity control apparatus and method and a receiving system using them.

2. The technical problem to be solved by the invention

The present invention provides a deinterleaving apparatus and method capable of immediately listening to a new channel so that a delay time as long as an interleaving length does not occur even when switching broadcast channels, and a receiving system using the same in order to improve reception performance of broadcast channel data. The purpose is to provide

Another object of the present invention is to provide an antenna diversity control apparatus and method and a reception system using the same, which can reduce power consumption when configuring and operating antenna diversity in order to improve reception performance of broadcast channel data.

3. Summary of Solution to Invention

In the deinterleaving apparatus for improving reception performance, the present invention provides a deinterleaving control means for grouping n and m bits and pre-demodulated data transmitted through a selection and preliminary demodulator by grouping each group and transmitting the group to the deinterleaving storage means. ; And the deinterleaving storage means for storing the selected demodulation data transmitted through the deinterleaving control means in n bits and storing the preliminary demodulation data in m bits less than n.

4. Important uses of the invention

The present invention is used in a receiving system for receiving broadcast channel data.

Deinterleaver, Diversity, Antenna, Spare Demodulator, Selective Demodulator, Channel Switching

Description

Deinterleaving apparatus and method and antenna diversity control apparatus for receiving performance improvement, and method and receiving system using them {A Receiving Apparatus and Method involving the Deinterleaving and Antenna Diversity control operation for quality enhancement}             

1 is an exemplary configuration of a transmission system for data transmission in a general code division multiplexing scheme;

2 is a configuration diagram of a receiving system using a deinterleaving apparatus and an antenna diversity control apparatus in a code division multiplexing scheme according to the present invention;

3 is a block diagram of an embodiment of a deinterleaving apparatus for improving reception performance according to the present invention;

4 is a flowchart illustrating an embodiment of a deinterleaving method for improving reception performance according to the present invention;

5 is a configuration diagram of an embodiment of an antenna diversity control apparatus according to the present invention;

6 is a flowchart illustrating an embodiment in which antenna diversity is controlled according to received signal performance in an antenna diversity control method according to the present invention;

FIG. 7 is a diagram illustrating an embodiment in which a configuration of a digital filter is controlled according to a reception signal performance in the antenna diversity control method according to the present invention.

* Explanation of symbols for the main parts of the drawings

21 antenna 22 receiver amplifier

23: downconverter 24: divider

25 demodulator 26 deinterleaver

27: error correction decoder 31: selective demodulator (1 to r)

32: preliminary demodulator (1 to u) 33: deinterleaver controller

34: Deinterleaver Memory

The present invention relates to a deinterleaving apparatus and method for improving reception performance, an antenna diversity control apparatus and method, and a receiving system using them, and more particularly, to store all information in detail about a channel currently selected. By storing only basic information about the channel that can be selected later, it is possible to perform channel switching without interruption from pre-stored basic information when changing the channel selection, and also by automatically controlling the configuration method of the receiver according to the reception performance. A deinterleaving apparatus and method therefor for improving the reception performance of channel data, an antenna diversity control apparatus and method, and a receiving system using them.

As is well known, in code division multiplex broadcasting, a plurality of broadcast channel data are spread by different spreading codes and then overlapped with the same frequency. In this case, an error correcting encoder and an interleaver are used prior to spreading modulation in order to improve reception performance of broadcast channel data. For example, the length of the interleaver is increased so that the error correction capability is improved even for a poorly received signal.

In addition, as another example used to improve reception performance of broadcast channel data, antenna diversity is used in a receiver.

However, as the interleaver increases the interleaving length, the error correction capability is improved, but the receiver delays the data by the interleaving length. This delay does not interfere with the normal broadcast listening, but especially when the user attempts to switch to the broadcast of another channel, the user cannot listen to both the old channel and the new channel for the delay time as long as the interleaving length.

Therefore, in order to be able to listen to all new channels even when switching broadcast channels, a method of implementing a reception device capable of immediately listening to a new channel without requiring a delay time as long as an interleaving length is required.

In addition, the antenna diversity is a method of improving performance by receiving signals transmitted along different paths from a plurality of antennas. However, since all functions such as a receiving amplifier, a down converter, a filter, and the like must be configured separately for each antenna, a resource is used in a receiver. In particular, in the case of a portable broadcasting terminal, low power is required in consideration of battery power consumption, but in the case of antenna diversity, all resources configured in parallel are used, which consumes much more power than a single antenna.

Therefore, a method for implementing a receiver that can reduce power consumption in antenna diversity configuration and operation is required.

The present invention has been proposed to meet the above requirements, and in order to improve the reception performance of broadcast channel data, a new channel can be immediately listened to without delay as long as the interleaving length occurs even when switching broadcast channels. An object of the present invention is to provide an interleaving apparatus and a method thereof, and a receiving system using the same.

Another object of the present invention is to provide an antenna diversity control apparatus and a method and a reception system using the same, which can reduce power consumption when configuring and operating antenna diversity in order to improve reception performance of broadcast channel data.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The apparatus of the present invention for achieving the above object, in the deinterleaving apparatus for improving the reception performance, deinterleaving storage means by grouping the selection and preliminary demodulation data of the n, m bits transmitted through the selection and preliminary demodulator for each group Deinterleaving control means for transferring to the control unit; And the deinterleaving storage means for storing the selected demodulation data transmitted through the deinterleaving control means in n bits and storing the preliminary demodulation data in m bits less than n.

In addition, the method of the present invention, in the deinterleaving method for improving the reception performance, when the channel is changed according to the user's request, the spreading code for changing the new spreading code setting for each demodulator group and recording the current time at the switching time Change and current time recording step; A data storage time checking step of checking whether data to be read from the deinterleaver memory is stored data before the switching time; As a result of the checking, if the data is stored before the data switching time, the first deinterleaving reads the data stored by the preliminary demodulator of m bits and transmits the data to the error correction decoder. If the data is stored after the switching time, the first deinterleaving reads and passes the n bits stored by the selective demodulator. Performing step; And performing a second deinterleaving step using only n-bit data of the selective demodulator when checking the time required according to the interleaving length when switching data channels.

In addition, another apparatus of the present invention, a plurality of downconversion means for transferring data through each of the receiving amplifier, downconverter, filter unit and correlator for each of the plurality of antennas; Rake combining means for demodulating data having better performance than a single antenna by adding data transmitted through the plurality of downconverting means to each other; Performance analysis means for measuring and analyzing the performance of the demodulated data through the rake coupling means in real time; And controlling the diversity function based on the performance measurement result analyzed through the performance analysis means, operating the antenna diversity when the reception performance is reduced to minimize power consumption, and operating the device configured for the antenna diversity when the performance is improved. A diversity control means for stopping the signal in real time, wherein the filter unit includes a plurality of filters having different tap numbers and a selector for selecting one of signals output from the plurality of filters, wherein the plurality of filters include: The better the performance measurement result of the performance analysis means is controlled by the diversity control means, the lower speed and fewer taps are activated, and the remaining filters are deactivated, and the selector is activated by the selection signal of the performance analysis means. Select and output the output of the filtered filter do.

Another method of the present invention provides an antenna diversity control method, comprising: a data demodulating step of adding data down-converted through a plurality of antennas to each other and demodulating data having improved performance compared to a single antenna; A data performance analysis step of measuring and analyzing the performance of the demodulated data in real time through the data demodulation step; And controlling the diversity function based on the performance measurement result analyzed through the data performance analysis step, operating the antenna diversity when the reception performance is reduced to minimize the power consumption, and operating the antenna diversity when the performance is improved. Antenna diversity control to stop the operation in real time, but the better the performance measurement result of the plurality of filters to activate the lower speed and fewer taps and to disable the remaining filters, and to selectively output the signal output from the activated filter. Characterized in that it comprises a step.

On the other hand, the present invention, in a receiving system for receiving broadcast channel data, in the wireless broadcast method that is code-segmented and multi-transmitted for each channel, the broadcast channel selected by the user and the spare channel of the selectable can be demodulated together, and the demodulated signal Is stored in the deinterleaver memory for deinterleaving, the demodulation data of the selected channel is stored as n bits, the other channels are stored as demodulation data of less than n bits, and the selected broadcast channel is changed to another channel by the user. And performing deinterleaving without interruption with demodulated data of m bits previously stored.

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The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a transmission system for data transmission in a general code division multiplexing scheme, in which "11" is an error correction encoder, "12" is an interleaver, "13" is a modulator, and "14" is a multiaddition. "15" represents an upconverter, "16" represents an amplifier, and "17" represents an antenna.

As shown in FIG. 1, after a plurality of broadcast channel data are error corrected encoded and interleaved through the error correction encoder 11 and the interleaver 12 for each channel, the channel 23 is modulated with a spreading code in the modulator 23 for each channel. Frequency spread. Subsequently, the signals modulated with different spreading codes for each channel are added to each other in the multiaddition circuit 14 and converted into a frequency band for transmission in the up-converter 15, and the signal converted into a transmission frequency band is converted into an amplifier ( 16 through the antenna 17.

2 is a configuration diagram of a receiving system using a deinterleaving apparatus and an antenna diversity control apparatus in a code division multiplexing scheme according to the present invention.

As shown in FIG. 2, in a code division multiplexing scheme according to the present invention, a receiving system using a deinterleaving apparatus and an antenna diversity control apparatus includes a receiving amplifier for amplifying a weak signal received through an antenna 21. 22, a down converter 23 for down-converting the signal amplified by the receiver amplifier 22 to baseband, and a divider 24 for distributing the signal converted through the down converter 23 for each channel. And a demodulator 25 for demodulating a broadcast channel selected by a user and a reserve channel with a selectable possibility in a wireless broadcasting method that is code-divided for each channel through a splitter 24 and is multi-transmitted, and selected through a demodulator 25. When the channel is changed to another channel by the user, the deinterleaver 26 for performing the deinterleaver without interruption with the pre-stored m-bit demodulated data and the deinterleaver 26 To correct an error of the data comprises an error correction decoder (27) for making the same as the data sent from the transmission system.

Herein, the demodulator 25 selects and demodulates a demodulator 25 for selecting and demodulating a channel necessary for receiving and listening to a currently selected channel, and changes a new spreading code setting for each demodulator group according to a user channel change request. Preliminary demodulator (32 in FIG. 3).

For reference, in the transmission system of FIG. 1, all channels simultaneously broadcast must be modulated at the same time. However, the distributor 24 in the reception system of FIG. 2 is distributed only as many channels as the reception system needs to receive at the same time.

The operation of the reception system using the deinterleaving apparatus and the antenna diversity control apparatus in the code division multiplex transmission method according to the present invention having the above-described configuration will be described in detail as follows.

First, the weak signal received through the antenna 21 is amplified by the receiving amplifier 22, converted into a baseband in the down-converter 23, and distributed to each channel in the divider 24. The distributed signal is demodulated by the demodulator 25 with the same code as the spreading code used for the channel in the transmission system, then deinterleaved through the deinterleaver 26, and the error correction decoder 27 corrects and transmits the error. The same channel data is created as the data sent from the system.

In a typical receiving system, the number of demodulated channels is very small compared to the transmitted channel. For example, in the case of the digital satellite broadcasting standard of the code division method in ITU-R, transmission is performed about 30 channels at the same time, but in the receiving system, a video consisting of a pilot channel, a program guide channel, a secret information channel, and two channels If up to five channels are received simultaneously in total, the currently selected channel can be received.

3 is a block diagram of an embodiment of a deinterleaving apparatus for improving reception performance according to the present invention.

As shown in FIG. 3, the deinterleaving apparatus (deinterleaver 26) for improving reception performance according to the present invention selects and reserves n and m bits transmitted through the selection and preliminary demodulators 31 and 32. A deinterleaver controller 33 for grouping demodulation data for each group and delivering the demodulated data to the deinterleaver memory 34 and the selected demodulation data transmitted through the deinterleaver controller 33 are stored as n bits, and preliminary demodulation data is stored in more than n. And a deinterleaver memory 34 for storing as few m bits.

Referring to the operation of the deinterleaving apparatus for improving the reception performance according to the present invention having the configuration as described above in detail as follows.

First, in the reception system, a selective demodulator 31 for a channel necessary for receiving and listening to a currently selected channel is configured and a preliminary demodulator 32 for a channel that may be required when the channel is changed. Preferably, five selective demodulators 31 and 25 preliminary demodulators 32 are each divided into groups. The size of the output data of the demodulators 31 and 32 for each group is different from each other by n and m bits, and the deinterleaver controller 33 bundles the data for each group and stores the data in the deinterleaver memory 34.

Here, if the preliminary demodulator 32 is changed during operation, only the spreading codes applied to the respective demodulators 31 and 32 are reset to match the changed channel, and each demodulator group is maintained as it is.

4 is a flowchart illustrating an embodiment of a deinterleaving method for improving reception performance according to the present invention, and illustrates a process of continuously performing a deinterleaving function without interruption when changing a channel.

As shown in FIG. 4, when a channel is changed by a user's request (401), a new spreading code setting is changed for each demodulator group (402), and the current time is recorded as a switching time (403).

At this time, the channel to be received as a new demodulator in the preliminary demodulator channel due to the channel change is changed to the storage of the demodulator previously stored by m bits by the change of the spreading code setting.

Subsequently, the deinterleaver controller continuously reads the data stored in the deinterleaver memory according to the deinterleaving procedure (404) and transmits the data to the error correction decoder. 405).

As a result, if the data is stored before the switching time, the data stored in the m-bit pre-demodulator is read and transmitted to the error correction decoder (406). If the data is stored after the switching time, the n-bit newly stored in the selective demodulator is read and transmitted (407). ).

Then, it is determined whether the time for the interleaving length is exceeded when switching channels (408). If not, the process proceeds to a process 404 of reading data stored in the deinterleaver memory according to a deinterleaving procedure continuously determined. When the time is exceeded, only n bits of data of the selective demodulator are used (409).

5 is a configuration diagram of an embodiment of an antenna diversity control apparatus according to the present invention.

As shown in FIG. 5, the apparatus for controlling antenna diversity according to the present invention includes a receiver amplifier 52, a down converter 53, a filter 54, and a correlator 55 for each of the plurality of antennas 51. A rake combiner 56 and a rake combiner 56 for demodulating data having a better performance than a single antenna by combining a plurality of downconverting means for delivering data through the plurality of downconverting means, and the data transmitted through the plurality of downconverting means. The performance analyzer 57 for measuring and analyzing the performance of the demodulated data in real time, and the diversity function is controlled based on the performance measurement results analyzed by the performance analyzer 57, but in order to minimize power consumption Diversity controller 58 for activating antenna diversity when performance degrades and for stopping in real time the operation of a device configured for antenna diversity upon performance enhancement It includes.

FIG. 6 is a flowchart illustrating a method in which antenna diversity is controlled according to a reception signal performance in the antenna diversity control method according to the present invention. The method of controlling when the number of antennas is two in the diversity controller of FIG. An example is shown.

As shown in FIG. 6, first, both antennas are activated (601).

Subsequently, performance in two antenna environments that are active under antenna diversity is measured for a predetermined time (602), and the performance measurement result is compared with the upper threshold (603).

As a result of the comparison, if the performance measurement result is worse than the upper threshold, the process proceeds to the step 601 of activating both antennas, and if the performance measurement result is better than the upper threshold, some of the functions of antenna diversity start to be limited (i.e., antenna diver Disables the filter and correlator of one of the antennas that has a faster rate of recovery (C604).

Subsequently, performance is measured again (605) and the performance measurement results are compared with a threshold (606) for a period of time in the inactive state of the filter and correlator.

As a result of the comparison, if the performance measurement result is lower than the lower threshold, the process proceeds to 601 to activate both antennas, and if the performance measurement result is between the upper and lower thresholds, deactivating the filter and the correlator (that is, the filter and the correlator). If the performance measurement is better than the upper threshold, the amplifier and the converter are also deactivated to minimize power consumption (607).

Subsequently, in the deactivation state, performance is measured in the inactive state of the amplifier and the converter again for a predetermined time (608), and the result of the performance measurement is compared with the lower threshold (609).

As a result of the comparison, if the performance measurement is better than the lower threshold, the process proceeds to deactivate the amplifier and the transducer (i.e., keep the amplifier and transducer inactive) (607). If the performance measurement is worse than the lower threshold, enable both antennas. 601 is activated (receives all of the receiving amplifier, downconverter, filter, and correlator to return to the initial antenna diversity state).

As described above, the antenna diversity control apparatus according to the present invention uses antenna diversity when the reception signal performance is good when the reception signal amplifier, the down converter, the filter, and the correlator are dually configured according to the reception signal performance. If the performance is bad, the antenna diversity is automatically applied.

FIG. 7 is a diagram illustrating an embodiment in which a configuration of a digital filter is controlled according to a reception signal performance in the antenna diversity control method according to the present invention. FIG. 7 illustrates a filter even when only one antenna path is used because antenna diversity is deactivated. It shows how to reduce the power consumption by controlling more.

As shown in Fig. 7, the filter 71 is composed of a plurality of filters having different speeds and number of taps in parallel. The currently used filter is selected by the selector 73 according to the performance measurement result of the performance analyzer 72 to operate one filter, and the other filters are deactivated. The selector 73 reduces power consumption by selecting a filter having a low speed and a low tap number as a result of better performance measurement.

Therefore, FIG. 7 has a real-time control function in which the number of taps and parameters of the digital filter change according to the performance of the received signal.

The deinterleaving apparatus and method for improving the reception performance having the structure as described above, the antenna diversity control apparatus and the method, and the reception signal method of the reception system using them have the following characteristic configurations.

(1) In order to demodulate the coded broadcast data, each channel must be demodulated with a different spreading code. Therefore, w code division demodulators must be configured in parallel to receive w coded channels. Therefore, in a broadcasting system having a total of t channels, it is common that not all t demodulators are configured in the receiving system but only r demodulators that are much smaller than t for receiving the currently selected channel.

However, in the present invention, q demodulators greater than or equal to t less than or equal to t are configured in parallel so that not only the currently selected channel but also the channel currently selected by the user can be changed to continuously receive all channels that are always selectable. do.

(2) The result of r demodulators related to the channel currently selected in (1) is directly used by the error correction decoder via a deinterleaver, but the result of (qr) demodulators configured due to future selectivity is the channel in the error correction decoder. Because it is used only when a change occurs, if there is no channel change, it is stored only in the deinterleaver memory and automatically disappears after the deinterleaving length.

Thus, the importance of the demodulator result is that the demodulator result associated with the currently selected channel is greater than the demodulator being operated and stored simply because of the selectivity. In addition, since the deinterleaver memory has to store all data from q demodulators rather than r at all times, it is larger than a general reception system storing only r demodulator results.

That is, the deinterleaving apparatus (deinterleaver) for improving reception performance according to the present invention stores the results from the r demodulators associated with the currently selected channel in the deinterleaver memory by n bits per channel, and has a low (qr) number of importance. The result from the demodulator can be stored in the deinterleaver memory by m bits less than n to reduce the size of the entire deinterleaver memory. In this case, the number of pre-demodulators is sufficient (q-r), but may be configured as q for convenience of implementation and operation. In this case, the circuit complexity of the preliminary demodulator is much less than that of the selective demodulator, so the complexity increase burden of the entire circuit is not large.

(3) In (2), the deinterleaving apparatus (deinterleaver) reads the r demodulator results stored in the deinterleaver memory from the memory according to the deinterleaver procedure and transfers them to the error correction decoder. At this time, if a channel change is made by the user, the deinterleaver should immediately transfer the result from the demodulator associated with the changed channel to the error correction decoder, but if the result of the demodulator associated with the changed channel does not exist in the deinterleaver memory beforehand. If not, the data cannot be delivered to the error correction decoder until the demodulator result is stored in memory for the deinterleaving length, and the user cannot see or hear the broadcast during this time.

Therefore, in the present invention, the deinterleaving and error correction decoding process is successively performed with the result of the m-bit related channel pre-demodulator already stored in the memory at the time of channel change and the result of the n-bit selective demodulator stored with the channel change. Ensure continuity

(4) In the code division multiplexing scheme, a plurality of channel data divided by the same frequency are transmitted at the same frequency, but the performance is poor when the number of simultaneously transmitted channels is large. In this case, the antenna diversity scheme is widely used to improve reception performance in a reception system. In the code division multiplexing scheme, antenna diversity improves performance by rake-combining the results from a plurality of antennas and a device connected to a receiving amplifier, downconverter, filter, and correlator configured for each antenna.

However, in this case, since all devices connected to a plurality of antennas in parallel operate, power consumption becomes very large compared to a single antenna method in which only one device is operated, which is a disadvantage in a portable terminal where low power is essential. In addition, since the reception performance in the wireless broadcasting varies depending on the radio wave environment of the region, the radio wave environment is poor in some areas, and antenna diversity is required.

Therefore, the present invention always monitors the reception performance in order to minimize power consumption, and operates the antenna diversity only when the reception performance is bad, and when the performance is good, the device configured for the antenna diversity (amplifier, downconverter, filter, correlator, etc.). ) To stop the operation in real time.

(5) The filter in (4) above is generally configured digitally. The baseband filter operates at a high speed, and the difference in reception performance is large depending on the characteristics of the filter. In addition, the performance of the filter is closely related to the complexity. Therefore, in order to obtain good performance, the complexity is increased by using a large number of taps, and the speed must be high, so the power consumption is also increased.

Therefore, the present invention divides the digital filter into high speed and low speed in order to reduce power consumption, and also configures a high performance filter having a large number of taps and a low performance filter having a small number of taps to receive together with the performance monitor of the above (4). Choose a low performance filter for good performance or a high performance filter for bad performance.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

In the present invention as described above, in the broadcast of the code division multiplex transmission method, the interleaving length is increased to increase the reliability of the broadcast data, and the broadcast data of the new channel is immediately received without delay by the interleaving length during channel switching. There is an effect that can eliminate the complaints of users.

In addition, the present invention has the effect of increasing the battery usage time by reducing the power consumption in the portable receiver while increasing the reliability of the broadcast data by the antenna diversity.

Claims (11)

In the deinterleaving apparatus for improving reception performance, Deinterleaving control means for grouping the n and m bits of the selection and preliminary demodulation data transmitted through the selection and preliminary demodulators into groups and delivering the group to the deinterleaving storage means; And The deinterleaving storage means for storing the selected demodulation data transmitted through the deinterleaving control means in n bits and storing the preliminary demodulation data in m bits less than n; Deinterleaving apparatus for improving the reception performance comprising a. The method of claim 1, The selection and preliminary demodulator, A deinterleaving apparatus for improving reception performance, characterized by demodulating together a selection channel selected by a user and a spare channel having a possibility of selection in a wireless broadcasting method encoded and multi-transmitted for each channel. The method according to claim 1 or 2, The deinterleaving control means, When the selected channel is changed to another channel by the user, the de-interleaving apparatus for receiving performance improvement characterized in that the deinterleaving is performed without interruption to the pre-stored m-bit demodulation data through the preliminary demodulator. In the deinterleaving method for improving reception performance, A spreading code change and current time recording step of changing a new spreading code setting for each demodulator group and recording a current time at a switching time when changing a channel according to a user's request; A data storage time checking step of checking whether data to be read from the deinterleaver memory is stored data before the switching time; As a result of the checking, if the data is stored before the data switching time, the first deinterleaving reads the data stored by the preliminary demodulator of m bits and transmits the data to the error correction decoder. If the data is stored after the switching time, the first deinterleaving reads and passes the n bits stored by the selective demodulator. Performing step; And Performing a second deinterleaving operation using the n-bit data of the selective demodulator when checking the time required according to the interleaving length when switching data channels; Deinterleaving method for improving the reception performance comprising a. In the antenna diversity control device, A plurality of downconverting means for transferring data through respective receive amplifiers, downconverters, filter units, and correlators for each of the plurality of antennas; Rake combining means for demodulating data having better performance than a single antenna by adding data transmitted through the plurality of downconverting means to each other; Performance analysis means for measuring and analyzing the performance of the demodulated data through the rake coupling means in real time; And While controlling the diversity function based on the performance measurement results analyzed by the performance analysis means, to operate the antenna diversity when the reception performance is reduced to minimize the power consumption, the operation of the device configured for antenna diversity when the performance is improved Diversity control means for stopping in real time, The filter unit, A selector for selecting one of a plurality of filters having different tap numbers and a signal output from the plurality of filters, In the plurality of filters, as the performance measurement result of the performance analyzing means is better controlled by the diversity control means, a filter having a lower speed and fewer taps is activated and the remaining filters are deactivated. And the selector selects and outputs the output of the activated filter by a selection signal of the performance analyzing means. In the antenna diversity control method, A data demodulation step of demodulating data having improved performance compared to a single antenna by adding down data, which are down-converted through a plurality of antennas, to each other; A data performance analysis step of measuring and analyzing the performance of the demodulated data in real time through the data demodulation step; And Control the diversity function based on the performance measurement results analyzed through the data performance analysis step, but operate the antenna diversity when the reception performance is reduced to minimize the power consumption, the operation of the device configured for the antenna diversity when the performance is improved Stops in real time, The antenna diversity control includes an antenna diversity control step of activating a low speed and low tap number filter and deactivating the remaining filters, and selecting and outputting a signal output from the activated filter as the performance measurement result is better among a plurality of filters. Control method. The method of claim 6, The antenna diversity control step, A first comparing step of comparing a plurality of activated antenna performances with a high threshold and a performance measurement result measured during a first predetermined time; A first diversity control step of deactivating a filter and a correlator of a first antenna having a higher speed of recovery again among functions of antenna diversity if the result of the comparison of the first comparison step is better than the upper threshold value; A second comparison step of comparing a performance measurement result and a lower threshold value, the performance of which is measured in the inactive state of the filter and the correlator for a second predetermined time; If the result of the comparison in the second comparison step, the performance measurement result is worse than the lower threshold, the first diversity control step, and if the performance measurement result is between the upper threshold and the lower threshold, the filter and the correlator A third diversity control step of deactivating an amplifier and a converter to minimize power consumption if the performance measurement result is better than the upper threshold; A third comparing step of comparing a result of measuring a performance in the inactive state of the amplifier and the converter for a third predetermined time with the lower threshold value; And As a result of the comparison in the third comparison step, if the performance measurement result is better than the lower threshold, the amplifier and the converter are deactivated, and if the performance measurement result is worse than the lower threshold, all of the plurality of antennas are activated to initialize initial antenna diversity. And a fourth diversity control step of returning to a state. delete In a receiving system for receiving broadcast channel data, In the wireless broadcasting method that is code-segmented and multi-transmitted for each channel, demodulation data of a selected channel is demodulated together when demodulating a broadcast channel selected by a user and a spare channel having a possibility of selection, and storing the demodulated signal in a deinterleaver memory for deinterleaving. Is stored in n bits, other channels are stored in demodulated data of less than n bits, and when the selected broadcast channel is changed to another channel by the user, deinterleaving is performed without interruption with the previously stored m bits of demodulation data. Receiving system, characterized in that. delete delete

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