New frame and training structure for multi-carrier systems. RU patent 2498516.

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a transmitting apparatus (54) for transmitting signals in a multi-carrier system based on a frame structure, each frame comprising at least two training structures adjacent to each other in the frequency direction and at least two data structures, said transmitting apparatus comprising: pilot mapping means (55) adapted to map the same sequence of pilot signals on frequency carriers of each of said at least two training structures in a frame, each training structure having the same length, data mapping means (58, 58', 58") adapted to map data on frequency carriers of said at least two data structures in a frame, transforming means (60) adapted to transform said training structures and said data structures from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said transmission signal.

EFFECT: providing flexibility of turning to any required part of the transmission band.

23 cl, 17 dwg

The present invention is directed to the new structure frame and training structure for systems with multiple carriers.

The present invention thus mainly directed (but not limited to) the system of broadcasting, such as, for example, cable systems based on the terrestrial digital radio broadcasting, in which the data content, data alarm, pilot signals etc. reflect on many frequencies, which are then passed in the specified shared or full bandwidth of the transmission. Receiver typically configure the partial channel (part of the shared bandwidth transfer) of the entire bandwidth transmission (sometimes called segmented reception) to accept only data content, necessary or desirable for the respective receiver. For example, in the standard ISDB-T (-N, integrated service digital terrestrial broadcasting), the total bandwidth of the channel, thus, is divided into 13 fixed segments of equal length (equal number of carrier frequencies).

The purpose of the present invention, therefore, is to provide a device and method of transmission, as well as the structure of the signal system with a multitude of bearing, which provides for the receiver an opportunity of flexible adjustment to any desired part of the shared bandwidth transmission.

Described above, the goal is achieved by transfer device according to claim 1. Device transfer in accordance with the present invention is arranged to transmit signals in a system with a lot of bearing on the basis of the structure of the frame, and each frame contains at least two preparatory structure, located next to each other in the direction of frequency, and at least two data structures, resulting in the transfer device contains a means of displaying the pilot signals, made with the possibility of displaying the same sequence pilot signals bearing the frequency of each of these, at least two of the training structures in the frame, and each training structure is exactly the same length, a means of displaying data, made with the possibility of displaying the data on the carrier frequencies mentioned at least two data structures in frame conversion tool, made with the possibility of conversion referred to training structures and referred to the data structures from the region of frequencies in the region of time to generate the signal transfer in the field of time, and a means of transmission, made with the possibility of transmission referred to signal transfer in the field of time.

The above-described purpose additionally achieved by way of transfer of the item 11. A method of transmission in accordance with the present invention is made with the possibility of transmission of signals in a system with a lot of bearing on the basis of the structure of the frame, and each frame contains at least two training structure, located next to each other in the direction of the frequency and at least two data structures, making the method includes the stages: reflect one and the same sequence of pilot signals on the carrier frequencies of each of the mentioned at least two training structures in the frame, and each training structure is exactly the same length, display data on the carrier frequencies mentioned in at least two data structures in a frame, transform mentioned training patterns and mentioned data structures in area of time to generate the signal transfer in the field of time, and referred to transmit the signal transfer in the field of time.

The above-described purpose additionally achieved by the structure of frame on p.12. Frame structure in accordance with the present invention adapted for systems with a lot of bearing and contains at least two training structure, located next to each other in the direction of frequencies, and at least two data structures, in which the same sequence of pilot signal display on the carrier frequencies of each of the mentioned at least two training structures in a frame, each training structure is exactly the same length, and in which the data reflect on the carrier frequencies mentioned at least two data structures in the frame.

The purpose of this invention additionally is to provide a device and method of admission, as well as a system and method for transmission and reception of signals in a system with a multitude of bearing, which provides an opportunity of flexible adjustment to any desired part of the bandwidth transmission.

Described above, the goal is achieved by receiving devices on item 13. Pickup device in accordance with the present invention is adapted to the reception of signals in a system with lots of load-bearing structure-based frame in bandwidth transmission, each frame contains at least two training structure, located next to each other in the direction of frequency, each with the same sequence of pilot signals displayed on the carrier frequencies, and at least two data structures with the data displayed on the carrier frequencies, and each of the mentioned at least two training structures is of the same length, which referred to pickup device contains the reception, made with the possibility of setting on and receive the selected part of the mentioned bandwidth transfer, referred to the selected part of the said bandwidth transfer has at least the length of one of the mentioned training structures and covers at least one data structure, intended for reception, and a means of correlation, made with the possibility of fulfilling correlation on the basis of the pilot signals received in referred to the selected part of the mentioned bandwidth transmission.

The above-described purpose additionally achieved by the way the drug on 23. Way to receive in accordance with this invention is made with the capacity to receive signals in a system with a lot of bearing on the basis of the structure of the frame in bandwidth transmission, each frame contains at least two training structure, located next to each other in the direction of frequency, each with the same sequence of pilot signals displayed on the carrier frequencies, and at least two the structure of the data displayed on the carrier frequencies, and each of the mentioned at least two training structures is of the same length, thus, the method contains steps: take a selected part of the mentioned bandwidth transfer, referred to the selected part referred bandwidth transmission has at least the length of one of the mentioned training structures and covers at least one data structure, intended for reception by, and perform correlation on the basis of the pilot signals received in the mentioned selected part of the said bandwidth transmission.

The above-described purpose additionally achieved through a system designed for the transmission and reception of signals by paragraph 24, containing a transmission device, is designed for transmission of signals in a system with a lot of bearing on the basis of the structure of a frame, and each frame contains at least two training structure, located next to each other in the direction of frequencies, and at least two data structures, and referred to the transfer device contains:

tool to show the pilot structure, made with the possibility of displaying the same sequence pilot signals on the carrier frequencies each of these, at least two of the training structures in the frame, and each training structure is exactly the same length,

a means of displaying data, made with the possibility of displaying the data on the carrier frequencies referred to at least two data structures in a frame,

conversion tool, made with the possibility of conversion referred to training structures and referred to the data structures from the region of frequencies in the region of time to generate the signal transfer in the field of time, and

tool transfer, made with the possibility of transmission referred to signal transfer in the field of time,

moreover, the above system additionally contains a device for reception in accordance with the present invention, made with the possibility to take referred to signal transfer in the field of time from the transmission devices.

The above-described purpose additionally is achieved using the method for transmission and reception of signals by section 25 of the formula of the invention, contains a transfer method for sending signals with a lot of bearing on the basis of the structure of the frame, and each frame contains at least two training structure, located next to each other in the direction of frequencies and at least two data structures, and referred a transfer method contains the following stages:

reflect one and the same sequence of pilot signals on the carrier frequencies each of these, at least, two training structures in a frame, each training structure is exactly the same length,

display data on the carrier frequencies mentioned at least two data structures in a frame,

convert mentioned training structure and the above-mentioned data structure of the field of frequencies in region time to generate the signal transfer in the field of time, and

transfer referred to signal transfer in the field of time,

the mentioned method further provides a way to receive in accordance with the present invention, made with the possibility of receiving referred signal transmission in the field of time.

In the present invention, therefore, proposed a system with multiple carriers, which uses a frame structure or frame sequence in the frequency domain, as well as in the field of time. In the frequency domain, each frame contains at least two identical training structures (which can also be called structures of the preamble), which, accordingly, carry identical pilot signals by carrying frequencies and, accordingly, have the same length (or bandwidth). After the conversion in the area of time to appear in the signal in the area of time, each frame then contains the corresponding symbol of the preamble (or training symbol), as well as data characters. Each frame structure covers the whole or the total bandwidth transmission in the direction of frequencies so that the total bandwidth transmission, therefore, equally divided on the appropriate identical training structure. Data structures each frame, then meet the training sequence. Pickup device can be flexibly configured to any desired part of the bandwidth transmission, provided that this part of the bandwidth transmission, which can be configured unloading device, has at least the length of one of the training structures. Thus, pickup device always has an opportunity to pilot signals throughout the training structure so that the correlation taken by the pilot signals to provide time synchronization, i.e. to define the synchronization point or the beginning of the next frame and/or displacement calculation frequency and/or channel estimation is possible pickup device.

Preferably, length, at least some of the data structures differs from each other, and the length of each of the data structures is less than or equal to the length of each of the training structures. Alternatively, the length of all data structures are the same and less than or equal to the length of each of the training structures.

Thus, the receiving device can be flexibly and without restrictions configured on any desired bandwidth transmission, resulting always possible correlation and, thus, time synchronization, because the pilot signals throughout the training structure may be adopted, so that the receiving device can take any desired data structure.

In addition, preferably, the length of the data structures in your device transfer regulate the dynamically. System with lots of load-bearing structure of the frame, as it is assumed in accordance with the present invention, thus, provides a very flexible transmission of the content of data, in which the length of the data structures and, thus, the amount of data to the data structure can be dynamically modified, for example, from frame to frame, or any other appropriate way. Alternatively, the length of the data structures can be fixed or permanent.

In addition, preferably at least two data structures follow after referred to, at least, two training structures in time dimension, in which each frame contains additional data structures the following after the mentioned at least two data structures in a time dimension, and each of these data structures additionally has a corresponding the same length as the corresponding one of the mentioned earlier, at least two data structures. In other words, the structure of sequences of data in each frame, preferably installed in such a way that at least two data structures are arranged next to each other in measuring the frequency so that covers the entire bandwidth of the transmission. Additional data structures then put together in the same frame, but so that they follow after at least two data structures in the direction of time each additional or structure the data is the same length (in measurement or in the direction of frequencies)as the previous data structure. Thus, if the receiving device is configured for a certain amount of bandwidth transfer will be taken at least two data structures on the frame, and each of these data structures is exactly the same length, but should one after another in a time dimension.

In addition, preferably, each frame contains at least two patterns alarm, resulting in data alarm display on the carrier frequencies of each structure alarm in the frame. Each structure alarm system can, therefore, have the same length in the measurement of the frequency. For example, each structure alarm in the frame, thus, can have identical alarm data is displayed on the appropriate carrier frequencies. Alternatively, alarm data each structure alarm in a frame can contain the location of the structure of alarm in a frame, in which case each structure in the frame has the same alarm data is displayed on the carrier frequencies, except for information about the location, which is different, at least for some out of every structures alarm in each frame. Thus, even if the receiver accepts only part of the entire bandwidth transmission is still possible to take all alarm data. Thus, in addition, it is preferable that the length of each structure alarm was the same as the length of the training structures, and to the structure of the alarm were aligned with the training structures in the direction of frequency. In particular incarnation, however, it may be preferable to the length of each structure alarm was less than the length of each of the aforementioned training structures. Thus, it may be especially it is preferable that the length of each structure alarm was half the length of each of the aforementioned training structures.

In addition, it is preferable that the alarm data is displayed on the carrier frequencies of each structure alarm with detection of errors and/or coding error correction. Thus, even if the receiving device is not able to take the entire structure of the alarm receiver unit still has the opportunity to get all the alarm information contained in the structure of the alarm.

Preferably perform autocorrelation based on the pilot signals received in the selected bandwidth transmission. Although the receiver can be flexibly adjusted to any desired part of the bandwidth transmission, it is always possible to take the pilot signals throughout the training structure, the new structure of the frame proposed in the present invention. Even if the selected bandwidth transmission, tuned, not fully and not correctly corresponds to one of the training structures (in the direction of frequency)receiver in this case, all else will be the last part (in the direction of frequency) of the previous training structure and the first part (in the direction of frequency) of the following training patterns. Because each of the training structures identical, the receiver has the ability to perform an autocorrelation for achieving the desired synchronization of time without any problems, even without the need for any change order or other processing of received pilot signals. As alternative, in case when the receiving device has information (in the measurement frequency) about a shift from the structure of the training sequence in each frame, it may have the possibility to change the order of acceptable pilot signals in the original sequence pilot signals, and in this case can be performed by comparing the correlation of a saved version of the training structure adopted (with randomized) version of the training structure adopted in the selected bandwidth transmission. In some versions of the incarnation of the cross-correlation may lead to more precise definition of time synchronization compared with autocorrelation.

Preferably, the receiver is configured to settings on a selected part of the mentioned bandwidth transmission and reception in such a way that ensures optimized reception patterns alarm in the selected bandwidth transmission. In particular, if structure in the measurement of the frequency for data structures and structures alarm in a frame don't match, and if the selected bandwidth transmission intended for reception in the receiver (frequency)than the structure (structure) data, intended for reception, it becomes possible to optimize your settings to get the best possible reception patterns alarm, for example, by adjusting the settings so that was assumed to be the maximum part of the whole structure alarm, while still taking all desirable structure (s) of the data.

Usually, it may be preferable to configure the receiver so that the elected part bandwidth transmission was adopted so that at least one data structure to be adopted, the centre of the relatively elected bandwidth transmission.

It is also preferable to the receiver can be set to receive an elected of the above bandwidth transmission on the basis of information alarm taken in the structure of signals of the previous frame.

It should be understood that the present invention can be used in any system with many of bearing, in which the transmission device configured to transmit data across the bandwidth of the transmission and receiving device configured to selectively accept only part referred to the entire bandwidth transmission. Not restrictive examples of such systems may represent an existing or future unidirectional or bi-directional system of broadcasting, such as cable or wireless (e.g., cable, terrestrial systems on the basis of the cable etc) digital broadcast video. Not restrictive example systems with a multitude of bearing can represent the system of multiplexing with orthogonal frequency division signals (OFDM, ), but you can use any other of the corresponding systems in which data pilot signals etc. reflect on the many the carrier frequencies. Carrier frequencies, thus, can be equidistant and, accordingly, have the same length (bandwidth). However, the present invention can also be used in systems with multiple frequencies, in which the carrier frequencies are not and/or do not have the same to the proper length. In addition, it should be understood that this invention is not confined to any view a specific range of frequencies no shared bandwidth transmission used on the transmit side, nor the selected portion of the bandwidth transmission, which is configured party reception. However, in some application forms may be preferable to receiving bandwidth on the receiving side, i.e. bandwidth bandwidth transmission, which can be configured receiver, which corresponds to a bandwidth receivers of existing systems (digital broadcast video, or other) systems. Not restrictive example, the bandwidth of the receiver can be 8 MHz, i.e. the party of reception can be set to any desired bandwidth 8 MHz of shared bandwidth transmission. Thus, the total bandwidth transmission can be multiple of 8 MHz, for example 8 MHz, 16 MHz 24 MHz, 32 MHz etc. so that segmentation shared bandwidth transmission, that is the length of each training patterns, can be 8 MHz. However, there are other dimensions segmentation, for example (but without limitation) the length of each training patterns can be equal to 6 MHz.

Usually, in the case of restrictive example 8 MHz bandwidth of the receiver, the length of the training structures used in the structure of the frame in accordance with the present invention can also be 8 MHz (or less).

This invention is explained in more detail in the next the description of the preferred way to implement with reference to the attached drawings, in which:

in Fig. 1 shows a diagram of the entire bandwidth of the transmission, from which the elected part can be selective and flexible taken receiver,

in Fig. 2 shows an example of segmentation shared bandwidth transfer,

in Fig. 3 shows a schematic representation of the region time frame structure in accordance with the present invention,

in Fig. 4A shows an example of training patterns in the frequency region

in Fig. 4B shows a view in the time of the training structure of Fig. 4A,

in Fig. 5A view shown in a frequency range of additional example of training patterns,

in Fig. 5B shows a view in the time of the training structure of Fig. 5A,

in Fig. 11 presents part of the structure of a frame on Fig. 10 with an explanation of the reverse-engineering structures alarm,

in Fig. 12 presents the schematic example characteristics receiver filter,

in Fig. 13 shows additional example of the structure of a frame in a sequence accordance with the present invention,

in Fig. 14 shows a portion of the additional example of the structure or frame sequence in accordance with the present invention,

in Fig. 15 schematically illustrates an example of the structure of a frame in accordance with the present invention, in the time dimension,

in Fig. 16 schematically shows a block diagram of a sample device transfer in accordance with the present invention, and

in Fig. 17 schematically shows a block diagram of a sample pickup device in accordance with the present invention.

In Fig. 1 shows schematically the performance of the entire bandwidth of 1 transfer which device is transmitted in accordance with the present invention, for example, the device 54 transmission, schematically shown in Fig. 16, transmits signals in a system with multiple carriers, in accordance with the present invention. In Fig. 1, in addition, schematically shows the block diagram of a device 3 admission in accordance with the present invention, which is made to settings and the election of reception of the selected part of the strip 2 1 bandwidth transmission. Thus, device 3 admission contains tuner 4, which is configured to configure it to and selective reception of desirable part 2 page 1 of bandwidth, transmission and means of 5 additional processing that performs additional necessary processing of the received signals in accordance with the corresponding system of data transfer, such as demodulation, decoding channel, etc. More elaborate example pickup device in accordance with the present invention is shown as a block diagram in Fig. 17, which shows the device 63 reception containing the interface 64 reception, which can, for example, represent a the antenna, the antenna structure, cable, or on the basis of the cable receiving interface, or any other appropriate interface implemented with the possibility to receive signals in the relevant transmission system or data. The receiving interface 63 64 devices reception is connected with the 65 acceptance, which contains configuration tool, such as a means of 4 settings, shown in Fig. 1, as well as elements of the additional processing required, depending on the respective transmission system or transmission of data, such as the conversion performed with the possibility of conversion of the received signal to intermediate frequency or main bandwidth.

As noted above, the present invention provides a flexible and modifiable reception of desirable part of the strip 2 1 bandwidth transmission in the receiver due to the fact that stipulates specific and new frame structure for a system with multiple carriers. In Fig. 2 shows a schematic of the overall band 1 bandwidth transmission in which the device 54 transfer in accordance with the present invention is arranged to transmit data content, such as video, audio or data of any other species, in different segments or parts 6, 7, 8, 9 and 10. For example, part 6, 7, 8, 9 and 10 can be used device 54 transmission for transmission of various pieces of data, data from different sources, data, intended for different recipients etc. Part 6 and 9 have, for example, the maximum bandwidth, that is, the maximum bandwidth that can be adopted appropriate device 63 reception. Parts 7, 8 and 10 are smaller bandwidth. In the present invention is now offered to apply the structure of a frame or sequence frame to the whole band 1 bandwidth transmission, with the result that each frame contains at least two training structure, located next to each other in the direction of frequency, and many data structures. Each training structure frame will have the same length and have the identical pilot signals. In other words, the total available 1 transmission bandwidth is divided into equal parts for training patterns, resulting in maximum bandwidth that can be tuned, for example, bandwidth, shown for parts 6 and 9 in Fig. 2, must be equal to or greater than the length of each of the training structure. Thus, by taking proper care of the entire training structures, the device 63 reception in accordance with the present invention may be properly synchronized with the device 54 transmission and tune into and receive the desired data flexibly and without restrictions. In addition, on the basis of the received training structure in the device 63 reception possible calculation of frequency offset and/or channel estimation. In addition, it is clear that the length of the various pieces of data bandwidth transfer may not exceed the length (number of carrier frequencies) training structures in the relevant frame, as further explained in more detail below.

In Fig. 3 shows a schematic representation of the structure in the field of time frames, 11, 11, 11" in accordance with the present invention. Each frame 11, 11, 11 contains a symbol of 12, 12, 12" preamble (or training symbol), one or more characters 13, 13 signals and several characters 14, 14 data. Thus, in the field of time, characters preamble or training characters follow the symbols signals that follow the preceding data. Each frame 11, 11, 11" can have a variety of characters of data, there may be a system in which changes the number of characters of data in each frame, 11, 11, ', 11". Symbols used in the preamble device 63 admission to perform time synchronization and, ultimately, to perform additional tasks, such as channel estimation and calculation of frequency offset. Characters 13, 13 alarm alarm contain information, such as all the information of the physical layer, which is necessary for the device 63 admission to decode the received signals, such as, without limitation, alarm data L1. Alarm data can, for example, contain content distribution data for various data structures, that is, for example, what services, data streams, modulation, correction of errors, etc. are located and on any carrier frequencies, so that the device 63 reception may receive information on what part of the entire bandwidth transmission it must be configured. In addition, characters alarm can contain data alarm indicating the offset of the corresponding data structure from the preamble or training patterns, and/or structure of the alarm so that the device 63 reception can optimize your configuration in desirable part of the transmission frequencies in such a way that is optimized receive training structures and/or structures alarm. The use of the structure of a frame in accordance with the present invention has the additional advantage of the fact that as a result of the separation of data flow on logical units, changes in the structure of the frame can be transferred in the form of signals from frame to frame in such a way that the previous frame contains signals about changed the structure of the frame to the next or one of the following frames. For example, the frame structure allows the joints to change the parameters of modulation without education errors.

In figures 4A, 4B, 5A and 5B are not restrictive examples of the structures of the preamble, which can be used in the present invention. However, we should understand that other possible patterns of the preamble could also be used. In Fig. 4A shows the view in the frequency domain structure 15 of the preamble or the training structure, in which many of supporting 16 frequencies (in the above example, 2048 bearing), respectively, carry a pilot signal. In other words, all bearing frequency of the training structure 15 tolerate a pilot signal. In Fig. 4B shows the training structure of Fig. 4A after change of time. Training the character in the field of time contains a lot of samples 17 in the field of time (in the above example, 2048 samples) for one repetition. In other words, a character in the field of time does not have any repetitions in the samples in the field of time. In Fig. 5A shows the optional, not restrictive, an example of the structure 18 of the preamble in the field of frequency, contains many frequencies (in the above example, 512-bearing). In the example, only every fourth sub-carrier frequency carries a pilot signal 19, all other supporting 20 do not tolerate the pilot signals. After the conversion in the area of time preamble in the field of time or training symbol 21, shown in Fig. 5B, is four repetition 22, each repetition 22 has identical sample of 23 (the same value and number). In the above example, training the character in the field of time has a length of 2048 temporary samples, and each repetition 22 contains 512 samples. The General rule is that the number of reps in the field of time corresponds to frequency of repetitions pilot signals in the frequency domain. In case when the distance pilot signals in the frequency domain is large, the number of reps in the field of time increases. Repetition in the preamble or training symbol in the field of time, sometimes referred to as "lightweight" training characters. In the example of Fig. 5B character in the field of time, therefore, contains four abbreviated training character. In some applications, it may be preferable to use sequence pilot signal in order to receive the signal structures, similar sequences in the field of time. In addition, you can use the so-called sequence CAZAC ( constant amplitude zero autocorrelation) for pilot signals, or any other appropriate sequence obtained in the structures of the signal, similar and having a good correlation properties as in the frequency domain, and in the field of time. Such sequences provide the ability to synchronize your device 63 reception in accordance with the present invention. In addition, such a sequence allow a reliable estimate of the channel in the device 63 reception in case of fulfillment of the criterion of the Nyquist frequency. In addition, such a sequence allow to calculate the offset frequency and/or evaluation of the channel in the device 63 reception.

As noted above, the present invention proposed a structure or frame sequence in the field of frequency for the entire bandwidth transfer of the device, 54 transfer, in which identical training patterns are repeated throughout the bandwidth of the transmission, i.e. in close proximity to each other in the direction of frequency. In Fig. 6 shows a schematic of such a sequence of identical and are located next to each other training structures, 25, 26, 27, 28 in all the band 24 bandwidth transmission. In other words, the same sequence of pilot signal display on the carrier frequency of each training structure 25, 26, 27, 28 so that each training structure is exactly the same length (or bandwidth) and the same number of carrier frequencies (if we assume that supporting frequencies are equidistant and, accordingly, have the same length or strip bandwidth). Preferably, as shown in Fig. 6, bandwidth summary 24 transmission bandwidth evenly divided on the training structure 25, 26, 27, 28, have, respectively, of the same length. The length of the training structures 25, 26, 27 and 28 also corresponds to the minimum bandwidth settings which can be configured device 63 reception in accordance with the present invention for receiving signals in order to ensure continuous reception device 63 receive all the training patterns for synchronization and channel estimation, and/or displacement calculation frequency).

In Fig. 7 shows an example of the simulation for sequence of 64 samples for systems with a lot of bearing without segmentation of the training structure, i.e. when the bandwidth of the transmission identical bandwidth reception. Peak correlation is clearly visible. In Fig. 8 shows another example, the simulation system in accordance with the present invention, in which all the bandwidth transmission contains identical training patterns, and the listener is configured to bandwidth transmission. In the situation shown in Fig. 8, it was tuned and is identical to the paired with the first segment, i.e. from the first training structure of the entire bandwidth transmission. In other words, the simulation shows the result of autocorrelation in the situation in which the receiver accepts the pilot signals training structure in the original sequence. And again, clearly visible peak of correlation. In Fig. 9 now shows the result of a simulation for a system of Fig. 8, when it was tuned to a position between two training structures so that the receiver does not take pilot signals in the original sequence, but takes the last part of the previous training patterns before the first part of the next training structure. However, given the cyclical behavior of pilot sequences and training structures, it is still possible to get a peak of autocorrelation, which is shown in Fig. 9.

In case when the device 63 receiving know its location preferences, and know the value of the offset from the start of the frame or from corresponding to the start of each training structures, envisaged in case of necessity means of 66 changing the layout can change the layout of acceptable pilot signals on the original order and perform a cross-correlation on the basis of comparison with the stored version the expected training structures in order to get the result of the mutual correlation. This result is mutual correlation usually has better quality than the result of autocorrelation, since it is less affected by noise. Thus, for systems with low SNR cross-correlation would be a better choice.

In Fig. 10 shows a diagram of a sample perceptions of the frequency of the structure or sequence 29 frame in accordance with the present invention. The structure of 29 frame covers the entire band bandwidth 24 transmission in the direction of frequency and contains at least two practice patterns 30, located next to each other in the direction of frequencies, each of which is passed an identical sequence pilot signals on the relevant carrier frequencies, and which have the same length. In the example shown in Fig. 4, the entire band is 24 bandwidth transmission additionally divided into four training structure 30, but may be appropriately divided into any other higher or lower number of training structures. In the device 54 transfer in accordance with the present invention, as shown in Fig. 16, 55 tool display pilot signal is arranged to show the pilot signals on the carrier frequencies of each of the training structure. Preferably, use sequence or sequence for pilot signals, but you can use any other sequence with good properties sequence and/or correlation. Additionally, the 55 display pilot signal can be configured to display a pilot signal on each carrier frequency of the training structures, as explained with reference to Fig. 4. As an alternative, means of 55 display pilot signal can be configured to display a pilot signal for each m-th carrier frequency (m is a positive integer greater than 1), as for example, with reference to Fig. 5. Length or bandwidth 39 each training structure 30 coincides with the bandwidth of 38, which can be configured tuner device 63 reception. However, bandwidth transfer, which can be configured tuner device 63 reception may be greater than the length of the training structure 30. In addition, for correlation performed in the 67 correlation device 63 reception, taken by the pilot signals can be advanced (after the changes in the frequencies in the 68 conversion) used for the assessment of the channel, carrier frequencies in the frame, in the 69 channel estimation, which provides for means of 70 reverse display the necessary information channel estimation, providing the possibility for the correct the inverse mapping data in the received signals of the data. In addition, measures taken by the pilot signals you can use your device 63 reception for the calculation of frequency offset in the corresponding tool that is not shown in Fig. 17.

Structure or sequence of 29 frame additionally contains at least two structures 31 alarm, located next to each other in the direction of frequencies that correspond to the training structures 30 in the direction of time. Each structure 31 alarm is the same length and bandwidth as the corresponding previous training structure 30, and the beginning and end of each structure 31 alarm in the direction of frequency are identical to the beginning and end of the relevant (in the field of time) preceding the training structure of 30, so that the structure of the frequency structures 31 alarm identical to the structure of the frequency of training structures 30. In other words, the structure 31 alarm aligned with the training structures of 30. The transmitting device 54 in accordance with the present invention, presented in Fig. 16, contains the 57 data display alarm, which is done with the ability to display data signals on the carrier frequencies of each structure 31 alarm. Thus, each structure 31 alarm systems contains, for example, the location of the structure 31 alarm in the frame. For example, each structure 31 alarm in each frame has and carries identical data signal, except for the location of the corresponding structure alarm in the frame, which is different in each structure 31 alarm in the frame. Alarm data are, for example, signalling data L1, that contain all the information about the physical level, which is necessary for the device 63 reception, decoding of the signals received. However, any other relevant data, alarms can be contained in the structures of 31 alarm. Structure 31 alarms can, for example, contain the location of the relevant segments 32, 33, 34, 35, 36 data so that the device 63 reception has information on where to are desired data segments so that the tuner device 63 reception can be adjusted to the appropriate location for the reception of the desired data segments. As shown in Fig. 17, the device 63 after receiving funds 65 reception tuner provides a tool 68 conversion intended for transformation of received signals from the field of time in the region of frequencies where once the data signal (after an optional reconstruction in the 71 reverse engineering) will be displayed back in the 72 reverse display, then will be finished their evaluation in the 73 evaluation. Tool 73 evaluation configured to extract the necessary and required information to the alarm of the received data signaling. If necessary, can be provided with some additional structure alarm in the direction of time, immediately after the structures 31 alarm.

Structure or sequence of 29 frame additionally contains at least two data segment, continuing throughout the band 24 bandwidth frequency in the direction of the frequency and structures after 31 alarm in the direction of time. In the time interval, following directly after time interval in which the patterns are 31 alarm, structure 29 frame is some segments, 32, 33, 34, 35, 36 and 37 of the data with a variety of lengths, i.e. with different number of corresponding frequencies, on that display data. The structure of 29 frame also contains additional segments of data in sequential time intervals, resulting in additional data structures, respectively, have the same length and number of carrier frequencies, as in the previous structure of the data. For example, patterns 32, 32" and 32" data have the same length as the first structure 32 data. Structure 33, 33 and 33" data have the same length as the segment 33 data. In other words, additional data structures have the same structure in the measurement frequencies, several structures 32, 33, 34, 35, 36 and 37 of the data in the first time interval after structures 31 alarm. Thus, if the device 63 reception, for example, tune to part 38 of the band bandwidth transfer to adopt a structure 35 data, consecutive in the field of time patterns 35, 35" and 35" data that have the same length and structure 35 data can be correctly taken.

In addition, it should be noted that the structure of the data, preferably contain pilot signals displayed on some of the carrier frequencies in order to provide the opportunity to fine-channel estimation on the receiving side. Thus, a pilot signal may be scattered among bearing with data in the form of a regular or not a regular structure.

In the device 54 transfer of carrier frequencies with pilot signals from the 55 display a pilot signal, carrier frequencies with the data signaling of funds 57 display alarm and carrier frequencies with data from different funds 58, 58, 58" display the data is then combined in a structure or sequence 29 frame in accordance with the present invention in the 59 formation of the frame.

Usually frame structure in accordance with the present invention may be fixed or permanent, that is, the total bandwidth, as well as the development of each frame in the direction of time should be fixed and always the same. Alternatively, the structure of the frame can also be flexible, that is, the total full bandwidth and/or extension of each frame in the direction of time can be flexible and may change from time to time depending on the required application. For example, the number of time intervals with data structures can flexibly change. Thus, changes can be transferred in the form of signals in the device receiving the data signaling placed in the structures of the alarm.

In Fig. 10 you can see that part 38, which is configured device 63 receiving frequency corresponds to the structure of training structures 30 and structures 31 alarm. However, as explained above, due to the cyclical nature of sequences pilot signal in training structures 30, tool 67 correlation device 63 reception may still be able to auto (or mutual) correlation. In addition, this situation is illustrated in Fig. 10, for device 63 of admission to a displacement of part 38 regarding the structure of the frequency patterns 29 frame in order to provide the possibility of changing the layout taken carrying signals with the receipt of the initial sequence of signals for structures 31 alarm that runs in the 71 reverse engineering. This is due to the fact that the structure alarm 31 have the same structure, length and frequency, and training structure 30.

During the startup phase or phase initiation device 63 receiving device 63 reception can be set to an arbitrary part of the frequency in the total bandwidth transmission. In not restrictive example, the cable system to broadcast a training structure 30 can have, for example, the bandwidth of 8 MHz. Thus, during the start-up phase device 63 reception can take all the training structure 30 in original order or re-randomized, and the full structure of the 31 alarm in original order or sequence with randomized adopted a training structure 30. Device 63 reception is arranged to perform correlation in the 67 correlation to receive synchronization time and evaluate a link (usually a rough estimate of the channel) in the 69 channel estimation and/or perform the calculation of the frequency offset after the conversion of the signals received in the field of time in the range of frequencies in the 68 conversion. In the 73 evaluation device 63 reception received data alarm assess, for example, receive location adopted patterns alarm in the frame so that the receiver can freely and flexibly customized by the corresponding desired position frequency, such as part 38 shown in Fig. 10. In the new position settings, which usually does not need to match the structure of the frequency of training structures 30 and structures 31 alarm device 63 reception still can synchronize, the assessment of the channel and the calculation of frequency offset on the basis of the pilot signals training structures 30 thanks to their cyclical nature. However, in order to allow a correct evaluation of signaling data structures 31 alarm, the order of received signals alarm should be re-modified, that is performed by means of funds 71 reverse engineering, as described above. In Fig. 11 shows the change in the in the form of a schematic example. The last part of the 31' previous patterns alarm take before the adoption of the first part 31 of the subsequent patterns alarm, then the tool 71 restructuring puts part of the 31' after 31" for to reconstruct the original sequence signaling data, then the data structure alarm with randomized assessed in the 73 evaluation after the corresponding inverse mapping data signaling of carrier frequencies in the 72 of the inverse mapping. Remember that the contents of each structure 31 alarm alike, so it is possible to change the order.

Often receiving device does not provide the same frequency response throughout the bandwidth of reception of the tuned. In addition, in the transmission usually occurs increased attenuation on the borders of the window bandwidth reception. In Fig. 12 schematically shows the typical example of a form of filter. You can see that the filter is not rectangular, so, for example, instead of bandwidth 8 MHz, the receiver unit is adapted to take effective only in bandwidth 7,4 MHz. Because of this device 63 reception may not be able to change the order of signaling data, as described with reference to Fig. 11, in the case when the structure 31 alarm have the same length and bandwidth, as the bandwidth of the receiving device 63 reception, so some signals will be lost and can't be taken at the border bandwidth reception. To overcome this problem and other problems, and to provide for the device 63 receiving a permanent opportunity to receive one full structure alarm in the original sequence and without the need to perform a change order or re-change the layout of the received signals alarm, the present invention alternatively, or additionally proposed to use patterns 31a alarms that have a reduced length compared with training structures of 30. In the example shown in Fig. 13 it is proposed to use patterns 31a alarm systems that are exactly half the length of the training structure 30, but, nevertheless, have the same structure of the frequency and training structure 30. In other words, the corresponding two (that is, pair) structure 31a alarm half-length match and aligned with each other for training structures 30, as shown in Fig. 13. Thus, each pair structures 31a alarm will have identical data signaling, including the location of structures 31a alarm in the relevant frame. But as far as other pairs structures alarm in these other pairs, as they have other appropriate place of the position in the frame, alarm data could be identical, except for information about the location. In order to ensure the transmission of the same the number of signaling data, as previously, you may need to add additional structure 31b alarm half-length in time period after the structures 31a alarm and to structures 32, 34, 35, 36 and 37 of the data. Additional structures 31b alarm have the same layout/alignment in time and frequency, and patterns 31a alarm, but provide additional and different information alarm from the alarm information contained in structures 31a alarm. Thus, the device 63 reception gets an opportunity to structure 31a and 31b of the alarm completely, and the initial sequence so that there is no need to carry out reconstruction or change the order. In this case the 71 reverse engineering may be excluded from the device 63 reception. It is also possible to envisage only patterns 31a alarm in one time interval and a half in length, if all the necessary data, alarms can be transferred to the half of the length, and additional structures 31b alarm are not needed. Alternatively, a greater number of structures alarm slot can be used in the next time interval after structures 31b alarm.

In General, it can be noted (all variants embodiment of the present invention)that the length (or bandwidth) training structures, data structures and/or structure of the alarm system can be adapted to, for example, may be less than or, at most, can be equal to the effective bandwidth of the receiving device 63 reception, for example, the output bandwidth bandpass filter admission, as described above.

Moreover, in General, it should be noted that the training structure, alarm and/or data structures for frame structure, described in accordance with the present invention may contain additional protective strip, that is not used at the beginning of the bearing and/or at the end of the corresponding structure or frame. For example, each training structure can contain a protective strip at the beginning and end of each structure. Alternatively, in some versions of the application may be preferable to have only the first training structure in each frame in the example shown in Fig. 10, the training structure in the position of 39, could contain a protective strip only at the beginning of the structure, and the last training structure in each frame can contain a protective strip only at the end of the structure. Alternatively, in some options for the application, only the first training structure in each frame, in the example of Fig. 10 training structure in the position of 39 may contain a protective strip at the beginning and at the end of the structure, and the last training structure in each frame can contain a protective strip at the beginning, and also at the end of the structure. The length of the protective strip, contained in some or all of the training structures may be, for example, lower, or at the most, can be equal to the maximum shift of the frequency with which the device can work reception. In the above example, the bandwidth of 8 MHz for each of the training structure of the protective strip can have, for example, the length of 250 - 500 kHz or any other relevant length. In addition, the length of the protective strips contained in the training structures, may be at least the length of the carrier frequency, which do not take pickup device due to the characteristics of the filter, as described with reference to Fig. 12. In addition, in the case when the structure alarm have protective stripes, the length of the protective strips contained in the training structures, may be at least the length of each of protective strips patterns alarm.

In addition, or alternatively, each structure alarm system may contain protective strip from not used bearing at the beginning and end of each structure. Thus, the length of each of shelterbelts contained in structures alarm, may be at least the length of the bearing that were not accepted pickup device due to the characteristics of the filter, as described with reference to Fig. 12, so that the length of signaling data in each structure alarm was equal to (or less) effective bandwidth of the receiver.

In addition, or alternatively, each data structure can contain protective strip from not used bearing at the beginning and end of each structure. Thus, the length of protective strips can be, for example, is the same as the length of protective strips structures alarm if the alarm contain protective strip. Alternatively, in some versions of the application, only the relevant first data structures in each frame in the direction of the frequency, in the example shown in figures 10 and 13, patterns 32, 32', 32", 32'" data can contain a protective strip only at the beginning of the data structure, and recent data structures in each frame in the direction of the frequency, in the example shown in figures 10 and 13, structures 37, 37', 37", 37'" the data may contain a protective strip at the end of the data structure. Thus, the length of protective belts of supporting data may be the same as or different from) the length of protective strips structures alarm.

Alternatively, or in addition, in order to overcome the problem, consisting in that parts of structures 31 alarm may be taken in the device 63 reception, device 54 transmission may, if necessary, contain a tool 56 coding errors, made with the possibility of adding a certain type of coding errors, redundancy, such as coding repetition or the like for data signaling that display on the carrier frequencies structures alarm by using the 57 display the alarm. Additional coding errors can provide the opportunity for the device 54 transmission use patterns 31 alarm of the same length, and that training structure 30, as shown in Fig. 10, as the device 63 reception is arranged to, for example, by means of 71 reconstructing perform a certain kind of detection and/or correction of errors for reconstructing the original the structure of the alarm.

In Fig. 15 shows a view in the time of the sample frame 47 in accordance with the present invention. In the device 54 transmission, after the structure or frame sequence will be generated in the 59 formation of the frame, the frame structure in the field of frequency transform in the area of time using the 60 conversion. An example of the resulting frame in the field of time now shown in Fig. 15. Frame 47 contains a set of the reduced training characters 48, received in the result display pilot signals only on every m-u carrier frequency (m is a positive integer greater than or equal 2) using the 55 display a pilot signal, followed by a guard interval 49, a symbol of 50 signals, additional guard interval 51 and a lot of characters 52 data, which are respectively divided protective intervals 53. In case of presence of the respective two structures 31a, 31b alarm, as explained with reference to Fig. 13, frame 47 may contain two characters alarm, separated by a protective interval. Guard interval can, for example, be a cyclic extension of useful parts of characters. Sync reliability, in General, may be improved due to the inversion of the last training character, that is, phase inversion in the last training symbol on the previous training characters (which all have the same phase). Frames in the field of time then send to the tool 61 transmission, which processes the signal in the area of time, depending on the system with lots of supporting, for example, applying a transform of a signal with increasing frequency to the desired transmit frequency. Transmission signals are then passed through the interface 62 transmission, which can be either the interface cable or wireless interface, such as an antenna or the like.

The reduced number of training 48 characters in a frame 47 depends on the desired option incarnation and used the transfer system. In not restrictive example the reduced number of training 48 characters can be 8, which represents a good compromise between the complexity of correlation and reliability synchronization.

In Fig. 15 additionally, it is shown that the corresponding number of frames can be combined in superframes. The number of frames on the superframe, that is, the length of each superframe in the direction of time may be fixed or may change. Thus, may be set to the maximum length that a superframes can be set dynamically. In addition, it may be preferable to signalling data structures alarm for every frame of the superframe were the same and that a change in the signalling data occur only from a superframe to . In other words, modulation, coding, number of data structures etc. could be the same in each frame of a superframe, but would then differ in subsequent superframe. For example, the length of the superframe systems broadcast may be greater, since data alarms can not change so often, and in interactive system length of a superframe may be shorter as optimization of the parameters of transmission and reception can be made on the basis of feedback from the receiver to the transmitter.

The elements and functions of the device 54 transfer, block diagram of which is shown in Fig. 16, explained above. It should be understood that the actual embodiment of the device 54 transfer will contain additional elements and options required for actual device operation of the transmission system. In Fig. 16 shows only the items and means necessary for the clarification and understanding of the present invention. The same applies to the device 63 reception, a block diagram of which is shown in Fig. 17. In Fig. 17 shows only the elements and functions necessary for the understanding of the present invention. Additional items will be needed for actual device operation 63 reception. In addition, it should be understood that the elements and functions of the device 54 transmission and device 63 of reception, can be incorporated in a device, system, etc. of any type, adapted to perform the functions described and declared in the present invention.

The present invention, in addition, directed on the structure of a frame (and accordingly, the adapted device transmit and receive, and on the way as described above), which, as an alternative to variants mentioned above incarnation, has many (two or more) data structures in which at least one data structure has a length different from other structure (s) of the data. Such a structure of sequences of variable-length data can be combined, or as a series of training structures with an identical the length and content, as described above, or in the form of a sequence of training structures in which at least one training structure has a length and/or content that is different from other training structures, that is a variable length of the training structure. In both cases, for device 63 reception will need some information about changing the length of the data structures that can be transmitted using a single channel data signaling or with the use of signaling data contained in the data structures alarm contained in the structure frame as described above. In the latter case, such an incarnation, if the first training structure and the first structure of the alarm system in each frame is always the same length, in which the receiving device can always get information about variables, data structures by taking the first training structure and alarm system in each or as necessary in frames. Of course, other options of the incarnation. In the rest, still applies the rest of the description above regarding training structures, data structures and structures alarm and possible variants of the incarnation of the device 54 transmission and device 63 reception.

1. Transmission device, is designed for transmission of signals in a system with a lot of bearing on the basis of the structure of the frame, and each frame contains at least two structures of the preamble, located next to each other in the direction of the frequency and at least two data structures, following after at least two structures in the direction of the preamble the time in the time interval, following directly after the time interval in which there are at least two structures of the preamble, in which each of at least two data structures in the frame respectively, followed by additional data structures in a subsequent time interval in the direction of time in which all the data structures, following each other in the direction of time, have the same structure in the direction of frequency, and each of at least two structures of the preamble, at least two data structures and additional data structures contains many frequencies, the said device includes: a means of displaying the pilot signals intended for display of the same sequence of pilot signals on the carrier frequencies each of these, at least two of the structures of the preamble in a frame, and each of the structures of the preamble of the same length, a means of displaying data alarm, made with the possibility of displaying of signaling data on the carrier frequencies of each frame in which the same data alarm display two or more times for each of the frames, located next to each other in the direction of the frequency, a means of displaying data, made with the possibility of displaying the data on the carrier frequencies mentioned at least two data structures and mentioned additional data structures in the frame conversion tool, made with the possibility of convert the above-mentioned structures of the preamble and the mentioned data structures from the region of frequencies in the region of time to generate the signal transfer in the field of time, and a means of transmission, made with the possibility of transmission referred to signal transfer in the field of time.

2. Transmission device of claim 1, wherein the length of at least some of at least two data structures differs from each other, and the length of each of the data structures is less than or equal to the length of each of the structures of the preamble.

3. Transmission device of claim 1, wherein the length of all data structures are the same and less than or equal to the length of each of the structures of the preamble.

4. Transmission device of claim 1, wherein the length of the data structures regulate the dynamically.

5. Transmission device according to claim 1 in which each frame contains at least two patterns alarm referred to a means of displaying data alarm, executed with the possibility of displaying the same data signaling on the carrier frequencies of each structure alarm in the frame.

6. Transmission device according to claim 5, in which the length of each structure alarm is the same as the length of the subsidiary bodies of the preamble.

7. Transmission device according to claim 5, in which the length of each structure alarm less than the length of each of the above-mentioned structures of the preamble.

8. Transmission device according to claim 7, in which the length of each structure alarm is half the length of each of the above-mentioned structures of the preamble.

10. A transfer method intended for the transmission of signals in a system with a lot of bearing on the basis of the structure of the frame, and each frame contains at least two structures of the preamble, located next to each other in the direction of frequency, and at least two data structures the following after at least two structures of the preamble in the direction of time in the time interval, following directly after the time interval in which there are at least two structures of the preamble, in which each of at least two structures the data in the frame respectively followed by additional data structures in a subsequent time interval in the direction of time in which all the data structures, following each other in the direction of time, have the same structure in the direction of frequency, and each of at least two structures the preamble of at least two data structures and additional data structures contains many frequencies, containing the following stages: reflect one and the same sequence of pilot signals on the carrier frequencies each of these, at least two of the structures of the preamble in a frame, each structure of the preamble of the same length, alarm display data on the carrier frequencies of each frame in which the same data alarm display two or more times for each of the frames, situated next to each other in the direction of the frequency display data on carrier frequencies mentioned at least two data structures and mentioned additional data structures in a frame, transform mentioned structure of the preamble and the above-mentioned data structures from the region of frequencies in the region of time to generate the signal transfer in the field of time, and transfer referred to signal transfer in the field of time.

11. Pickup device, designed for reception of signals in a system with lots of load-bearing structure-based frame in bandwidth transmission, each frame contains at least two structures of the preamble, located next to each other in the direction of frequency, each with the same sequence of pilot signals displayed on the carrier frequencies, the same data alarm display two or more times for each of the frames, situated next to each other in the direction of frequency, and at least two data structures the following after at least two structures of the preamble in the direction of time in the time interval, following directly after the time interval in which there are at least two structures of the preamble, in which each of at least two structures the data in the frame respectively followed by additional data structures in a subsequent time interval in the direction of time in which all the data structures, following each other in the direction of time, have the same structure in the direction of frequency, as mentioned, at least two data structures and at least two additional data structures contain the data displayed on the carrier frequencies, and each of the mentioned at least two structures of the preamble of the same length, and each of at least two structures of the preamble, at least two data structures and additional data structures contains many frequencies referred to pickup device contains: the reception, made with the possibility of setting on and receive the selected part of the mentioned bandwidth transfer, referred to the selected part of the mentioned bands bandwidth transfer has at least the length of one of the above-mentioned structures of the preamble and covers at least one data structure, intended for reception, and a means of correlation, made with the possibility of fulfilling correlation on the basis of the pilot signals received in the mentioned the selected part of the mentioned bandwidth transmission.

12. Pickup device according to claim 11, where the said means of correlation configured to perform an autocorrelation based on the pilot signals received in the mentioned selected part of the mentioned bandwidth transmission.

13. Pickup device according to claim 11, where the said means of correlation done with the possibility of mutual correlation on the basis of comparison saved version of the structure of the preamble with the accepted version of structure of the preamble, adopted in the above-mentioned selected part of the mentioned bandwidth transmission.

14. Pickup device on 13 containing a means of re-composition changes pilot signal, made with the possibility of changing the layout of the mentioned adopted pilot signals in the original sequence if the selected part of the mentioned bandwidth transmission, which is configured tool reception, does not correspond to the structure of the preamble.

20. Pickup device according to claim 11, where the said means of reception is arranged to configure it to and receive the selected part of the mentioned bandwidth transmission on the basis of information alarm, adopted in the structure of alarm previous frame.

21. Way reception, designed to receive signals transmitted in the system with lots of load-bearing structure-based frame in bandwidth transmission, each frame contains at least two structures of the preamble, located next to each other in the direction of frequency, each with the same sequence pilot signals displayed on the carrier frequencies, the same data alarm display two or more times for each of the frames, situated next to each other in the direction of frequency, and at least two data structures, following after, at least, two structures of the preamble in the direction of time in the time interval, following directly after the time interval in which there are at least two structures of the preamble, in which each of at least two data structures in the frame respectively, followed by an additional data structures in a subsequent time interval in the direction of time in which all the data structures, following each other in the direction of time, have the same structure in the direction of frequency, as mentioned at least two data structures and at least two additional data structures contain the data displayed on the carrier frequencies, and each of the mentioned at least two structures of the preamble of the same length, and each of at least two structures of the preamble, at least two data structures and additional data structures contains many frequencies, containing the following steps: take a selected part of the mentioned bandwidth transfer, referred to the selected part of the mentioned bandwidth transmission has at least the length of one of the above-mentioned structures of the preamble and covers at least one structure data intended for the reception, and perform correlation on the basis of the pilot signals received in the mentioned selected part of the mentioned bandwidth transmission.

22. A system for the transmission and reception of signals, containing a transmitter and the device according to claim 1 admission under item 11, made with the possibility of receiving referred to transmit signals in the time portion of the transmission devices.

23. Method for transmission and reception of signals, containing a transfer method to 10 and method of admission under item 21, made with the possibility of receiving referred to signal transfer in the field of time.