CN1708039A - Single carrier transmitter with field inserted field synchronizing information and method thereof - Google Patents
Single carrier transmitter with field inserted field synchronizing information and method thereof Download PDFInfo
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- CN1708039A CN1708039A CNA2005100750193A CN200510075019A CN1708039A CN 1708039 A CN1708039 A CN 1708039A CN A2005100750193 A CNA2005100750193 A CN A2005100750193A CN 200510075019 A CN200510075019 A CN 200510075019A CN 1708039 A CN1708039 A CN 1708039A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0022—PN, e.g. Kronecker
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
- H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
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- Computer Networks & Wireless Communication (AREA)
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- Compression Or Coding Systems Of Tv Signals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Disclosed is a single carrier sender capable of adding field synchronization message with variable code elements to the field. The single carrier sender includes a data adding unit for executing dividing and adding the complex operation for the televise signals to be sent; a transferring frame forming unit for generating frames from the televise signals; a pilot plug-in unit for adding the pilot frequency to the frames containing field synchronization information and segment synchronization information; a modulating unit used for modulating the pilot frequency adding frames from the pilot frequency plug-in unit; and a radio frequency (RF) upper converter used for executing conversion operation to the modulated frames from the modulating unit, wherein , the transferring frame forming unit a channel encoding unit and a multi-conversion unit. Based on the field synchronization information containing a plurality of segments, a receiving end can more accurately estimate the transferring channels.
Description
The application is to be that October 29, application number in 2002 are 02146966.0, are entitled as the dividing an application of patent application of " SCPC transmitter and the method thereof of field sync information being inserted field " applying date.
Technical field
The present invention relates to SCPC transmitter, more particularly, relate to and be used for and comprise synchronously and comprise about the section of the synchronizing information on each data segment of data field and insert residual sideband (VSB) broadcast singal synchronously, and send the SCPC transmitter of this signal about the data field of the synchronizing information of each data field of VSB broadcast singal.
Background technology
In the transmission mode of the broadcast singal that is used for digital broadcasting, there are residual sideband (VSB) modulation and Coded Orthogonal Frequency Division Multiplexing (COFDM) (COFDM) modulation.
The VSB modulation is that broadcast singal is sent to single carrier.The COFDM modulation is multiplexed and divides broadcast singal, by many transmission channels it sent then.
The VSB modulation is the digital broadcast transmission pattern, and is used on Korea S, the U.S. and other places.The COFDM modulation is the digital broadcast transmission pattern towards Europe.
Fig. 1 is the view that shows the data frame structure of the VSB broadcast singal that sends by traditional VSB transmitter.Fig. 1 has shown one of Frame of VSB broadcast singal.A Frame is made up of two fields, i.e. first field and second field.Each field comprises 313 sections.Because first and second fields have the information of same type, first field will be used as example and describe.
First field is made up of the data that comprise the first field sync information F1, section synchronizing information S and forward error correction (FEC).FEC is encoded to proofread and correct the error checking information of the mistake that produces between VSB broadcast singal transmission period.The first field sync signal F1 comprises the synchronizing information that begins about first field, and is made up of 828 code elements.Section synchronizing information S comprises the synchronizing information about each section beginning, and this field is made up of 313 sections.Each section synchronizing information is made up of 4 code elements.The repetition period of each section is 77.3 μ s, and the repetition period of each field is 24.2ms.Therefore, the repetition period of each Frame is 48.4ms.
Therefore, in the Frame of traditional VSB broadcast singal, the first and second field sync information F1 and the F2 that be inserted into each field are inserted into each section of being made up of 828 code elements.
Fig. 2 is the view that shows the field sync message structure of 8VSB signal.For reference, the field sync information shown in the figure is the level value that obtains before inserting pilot tone.Field sync information comprises pattern information, reserved area and the prefetch code structure (PC) of the field start information FS about the beginning of the insertion of field sync information, 511,3 PN63 of pseudo noise (PN) that are used as the start information of field, expression VSB pattern.PN511 and PN63 are the information with pseudorandom sequence coding.Field start information FS is the section synchronizing information about field sync information.
Field start information FS is identical with each section synchronizing information to be made up of 4 code elements, and PN511 is made up of 511 code elements.Each of 3 PN63 is made up of 63 code elements, and pattern information is made up of 24 code elements.The reserved area is made up of 104 code elements, and PC is included in the reserved area and is made up of 12 code elements.
Fig. 3 is the view that shows the data segment structure of 8VSB broadcast singal.For reference, data segment shown in Figure 3 is to insert the level value that obtains before the pilot tone.Data segment is by the section synchronizing information and comprise that the data of FEC form.The section synchronizing information is the start information of data segment, and is made up of 4 code elements.Data, services is made up of 828 code elements in the VSB receiver and in each section.Therefore, a data segment is made up of 828+4=832 code element.
Meanwhile, when restoring signal, the recipient uses each the field sync information in the Frame of VSB broadcast singal, to estimate transmission channel.Yet the field sync information of inserting each field is corresponding to one in 313 sections.That is, per 312 data segments insert a field sync information.Because field sync information has the cycle of 77.3 μ s and the cycle that corresponding field has 22.2ms, distributes to the recipient and is used to estimate that the time of transmission channel is too short in practice.Therefore, the problem that exists the transmission channel of VSB broadcast singal accurately not estimated.
In addition, that be mainly used to estimate transmission channel in field sync information is PN 511, i.e. 511 code elements.Therefore, exist the problem that receiving terminal can not accurately be estimated transmission channel.The inaccurate estimation of transmission channel is caused the inaccurate recovery of VBS broadcast singal at receiving terminal.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of SCPC transmitter and method thereof, it can be by the code element number that field sync information is set changeably and each field of this field sync information being inserted signal, estimate transmission channel more exactly at receiving terminal, and carry out signal more exactly from the transmission channel of estimating and recover.
According to the present invention to achieve these goals, provide a kind of by using single carrier to send the SCPC transmitter of broadcast singal.Described SCPC transmitter comprises: data are inserted the unit, are used to carry out the interlace operation of dividing and inserting the broadcast singal that will send; Transmission frame forms the unit, is used for producing frame from described broadcast singal; Pilot plug-in unit is used for pilot tone is inserted the frame that comprises the field sync information and the generation of section synchronizing information; Modulating unit is used for carrying out modulation to inserting frame from the pilot tone of described pilot plug-in unit; And radio frequency up converter, be used for carrying out the operation of radio frequency up conversion from the modulation-frame of described modulating unit, wherein said transmission frame forms the unit and comprises: the chnnel coding unit is used for broadcast singal is carried out chnnel coding, so that the channel error that produces between the correction signal transmission period; And many converting units, be used for to be formatted into the data of two fields from the chnnel coding broadcast singal of described chnnel coding unit output, each field is formed by a plurality of sections, be used for the section synchronizing information is inserted each section of chnnel coding broadcast singal, and each field of field sync information being inserted the chnnel coding broadcast singal, to form frame according to the business model information corresponding to the data that will send, described field sync information comprises the code element that changes according to business model information on number.
According to another aspect of the present invention, providing a kind of is used for by using SCPC transmitter to send the method for broadcast singal.Described method comprises step: broadcast singal is carried out chnnel coding, with the channel error that produces between the correction signal transmission period; Business model information is provided; The section synchronizing information is inserted each section of chnnel coding broadcast singal, and each field of field sync information being inserted the chnnel coding broadcast singal, to form frame, described field sync information comprises the code element that changes according to the business model information of being determined by the required transfer rate of the broadcast singal that will send on number; Pilot tone is inserted described frame, described frame comprise comprise field sync information and the section synchronizing information, this field sync information comprises the variable number code element; According to predetermined modulating mode pilot tone is inserted frame and carry out modulation; And, modulation-frame is carried out the radio frequency up conversion according to predetermined modulating mode.
According to another aspect of the present invention, be provided for the frame forming device of SCPC transmitter.Described frame forming device comprises: the chnnel coding unit is used for broadcast singal is carried out chnnel coding, so that proofread and correct the channel error that produces between the signal transmission period; And many converting units, be used for the section synchronizing information is inserted each section of chnnel coding broadcast singal, and field sync information is inserted each field of chnnel coding broadcast singal, to form frame according to the business model information corresponding to the data that will send, described field sync information comprises the code element that changes according to business model information on number.
According to the present invention, receiving terminal uses 828 code elements that form by use PN511 code element as the PN sequence, estimates transmission channel more exactly based on the field sync information that comprises a plurality of sections thus.
Equally, receiving terminal is carried out signal recovery more exactly by the transmission channel of estimating based on the field sync information that comprises a plurality of sections.
Description of drawings
In conjunction with the drawings the preferred embodiments of the present invention are described in detail, above-mentioned purpose of the present invention and characteristic will become apparent, wherein:
Fig. 1 has shown the view of the data frame structure of the VSB broadcast singal that sends by traditional VSB transmitter;
Fig. 2 has shown the view of the field sync message structure of 8VSB broadcast singal;
Fig. 3 has shown the view of the data segment structure of 8VSB broadcast singal;
Fig. 4 is the block diagram that shows SCPC transmitter according to a preferred embodiment of the invention;
Fig. 5 shows the view of many converting units business model information with the data frame structure in the field sync information insertion broadcast singal;
Fig. 6 is the view that shows the segment structure of the field sync information of being inserted by many converting units of Fig. 4; And
Fig. 7 shows to be used for according to a preferred embodiment of the invention by using SCPC transmitter to send the flow chart of the method for broadcast singal.
Embodiment
Hereinafter, by describing the preferred embodiments of the present invention in detail by accompanying drawing.
Fig. 4 is the block diagram that shows SCPC transmitter according to a preferred embodiment of the invention.Present embodiment provides the example of a residual sideband (VSB) transmitter as SCPC transmitter.
The VSB transmitter has data and inserts unit 100, chnnel coding unit 120, many converting units 160, pilot plug-in unit 180, modulating unit 200 and radio frequency (RF) up converter 220.
Herein, chnnel coding unit 120 and many converting units 160 constitute the transmission frame forming device, and it is used to be provided with changeably the number of symbols of field sync information, and field sync information is inserted each field of the signal that is used for SCPC transmitter.
Data are inserted unit 100 according to predetermined pattern conversion, carry out the interlace operation of dividing and inserting the broadcast singal that will send to receiving terminal.Chnnel coding unit 120 codings insert the broadcast singal that unit 100 interweaves by data.That at this moment, be used in chnnel coding unit 120 usually is trellis coding method (trellisencoding method).
Many converting units 160 are inserted section synchronizing information S and field sync information F (it is scheduled in transmitter) each Frame of the broadcast singal of 120 outputs from the chnnel coding unit.
The source encoding unit (not shown) of coding source data provides the business model information of the broadcast singal of determining according to the required transfer rate of the broadcast singal of certain form that will send to many converting units 160.Herein, business model information is corresponding to the data that will send.HDTV pattern information and SDTV pattern information are the examples of business model information.The HDTV pattern information represents that broadcast singal is to be used for HDTV, and the SDTV pattern information represents that broadcast singal is to be used for SDTV.
Herein, source encoding unit is inserted unit 100 to data the broadcast singal that will send is provided.
Replacedly, the business model information of broadcast singal can provide the unit (not shown) to provide by the business model information that is installed in SCPC transmitter of the present invention.
According to the business model information of broadcast singal, many converting units 160 are inserted field sync information F and section synchronizing information S each Frame of the broadcast singal of 120 outputs from the chnnel coding unit changeably.
Best, no matter the business model information of the broadcast singal that source encoding unit provided how, many converting units 160 are inserted section synchronizing information S each section of the broadcast singals of 120 outputs from the chnnel coding unit.
Equally, many converting units 160 are according to the variable number of symbols of the business model information setting field sync information F of broadcast singal, and field sync information are inserted each field of the broadcast singals of 120 outputs from the chnnel coding unit.
Best, if providing the business model information of the broadcast singal of unit from source encoding unit or business model information is the HDTV pattern information, many converting units 160 will comprise each field of inserting the broadcast singals of 120 outputs from the chnnel coding unit corresponding to the field sync information F of 828 code elements of a section.In addition, if the business model information of broadcast singal is the SDTV pattern information, it is 828 integral multiples promptly insert the broadcast singals of 120 outputs from the chnnel coding unit corresponding to the field sync information F of a plurality of sections code element each field that many converting units 160 will comprise number.
Therefore, receiving terminal is estimated transmission channel more accurately based on the field sync information that comprises most sections in each field.Therefore, receiving terminal can be carried out the signal recovery more accurately via the transmission channel of estimating.
Pilot plug-in unit 180 inserts pilot tone from the transmission frame of many converting unit 150 outputs according to business model information, its section of comprising synchronizing information S and the field sync information F that comprises the variable number code element.At this moment, the function of pilot tone is the level that increases from the transmission frame of many converting unit 160 outputs.What be used as pilot tone usually is the dc voltage value.
Modulating unit 200 is carried out the VSB modulation according to predetermined transmission mode to the transmission frame of the pilot plug-in unit 180 of next self-contained pilot tone.The frame of 220 pairs of VSB modulation of RF up converter is carried out the radio frequency up conversion, and the frame up conversion that VSB is modulated becomes the RF signal, sends it to receiving terminal through antenna 240 then.
Fig. 5 has shown that many converting units 160 are inserted into field sync information F according to business model information the structure of the Frame in the broadcast singal.
If business model information is the SDTV pattern information, many converting unit 160 copy field synchronizing information F, and they are inserted the front-end and back-end of the data field comprise forward error correction (FEC).Therefore, because field sync information F comprises most sections, receiving terminal is estimated transmission channel more exactly, to recover to be included in the data of each field.
Fig. 6 has shown the segment structure of the field sync information F that comprises many converting units 160 insertion signals that will pass through Fig. 4.According to this embodiment, be inserted into the segment structure section of comprising synchronizing information S and the field sync information F of the field sync information F of the broadcast singal of 120 outputs from the chnnel coding unit.Section synchronizing information S is made up of 4 code elements.
Field sync information F has pseudo noise (PN) sequence and prefetch code, comprises 828 code elements.Described 828 code elements comprise 511 code elements of pseudo noise (PN) and duplicate the code element of the presumptive area of PN511 code element.Described prefetch code is made up of 16 code elements.
The form that has the presumptive area of duplicating the PN511 code element according to the PN sequence of the field sync information F of present embodiment.That is, the PN sequence comprises 828 code elements, and its form is, 100 code elements that are positioned at PN511 code element front region are replicated, be added to the back region of PN511 code element then, and 201 code elements that are positioned at the back region of PN511 code element are replicated, are added to the front region of PN511 code element then.
Best, many converting units 160 are added to the predetermined code element of 100 code elements of the back region of PN511 code element by use, will insert the business model information of the data of respective field and insert the PN sequence.Business model information is the business model information that provides the unit to provide from source encoding unit or business model information.The number of symbols that is preferably used in business model information is 7.Therefore, receiving terminal is based on the business model information of inserting the PN sequence, determines to insert the type of the data of respective field.
Therefore, receiving terminal uses by utilizing 828 code elements that the PN511 code element forms as the PN sequence, estimates transmission channel thus more exactly.
Fig. 7 shows that SCPC transmitter used according to the invention sends the preferred embodiment of the method for broadcast singal.
Data are inserted unit 100 according to predetermined pattern conversion, carry out the interlace operation (S100) of dividing and inserting the broadcast singal that will send to receiving terminal.The 120 pairs of broadcast singals that interweaved by data insertion unit 100 in chnnel coding unit are carried out for example trellis coding (S120).Source encoding unit or business model information provide the unit to provide according to the required transfer rate of broadcast singal that is used for a certain form that will send and definite business model information (S140) to many converting units 160.HDTV pattern information and SDTV pattern information are as the example of business model information.
Many converting units 160 are inserted through section synchronizing information S and the field sync information F with variable number code element each field (S160) of the broadcast singal of chnnel coding unit 120 trellis codings.The business model information that many converting units 160 provide the unit to provide based on source encoding unit or business model information, field sync information variable symbol number is set, and field sync information is inserted each field of the broadcast singal of 120 outputs from the chnnel coding unit.For example, if business model is the HDTV pattern information, many converting units 160 will be inserted each field of the broadcast singal of 120 outputs from the chnnel coding unit by the field sync information of forming corresponding to 828 code elements of a section.In addition, if business model information is the SDTH pattern information, many converting units 260 will be each fields that field sync letter rack that 828 integral multiple is promptly formed corresponding to the code element of most sections is gone into 120 broadcast singals of exporting from the chnnel coding unit by number.
Pilot plug-in unit 180 inserts broadcast singal according to business model information with pilot tone, and described broadcast singal comprises the section synchronizing information S and the field sync information F (S180) that comprises the variable number code element from many converting unit 160 outputs.Modulating unit 200 is carried out residual sideband (VSB) modulation (S200) according to predetermined transmission mode to the broadcast singal that comprises pilot tone.The broadcast singal of 220 pairs of VSB modulation of radio frequency (RF) up converter is carried out the radio frequency up conversion, and the broadcast singal up conversion that VSB is modulated becomes the RF signal, sends it to receiving terminal (S220) through antenna 240 then.
Therefore, receiving terminal is estimated transmission channel more accurately by using the field sync information that comprises a plurality of sections in each field, and therefore, receiving terminal is by the transmission channel estimated restoring signal more accurately.
According to the present invention, receiving terminal uses by utilizing 828 code elements that the PN511 code element forms as the PN sequence, based on the field sync information that comprises a plurality of sections, will be more accurate for the estimation of transmission channel thus.
In addition, the transmission channel of receiving terminal by estimating based on the field sync information that comprises a plurality of sections, carrying out more exactly, signal recovers.
Although the preferred embodiments of the present invention are described, but it should be appreciated by those skilled in the art, the present invention is not limited to described preferred embodiment, under the situation that does not break away from the spirit and scope of the present invention that are defined by the following claims, can carry out various changes and modification to it.
Claims (35)
1. one kind is used for by using single carrier to send the SCPC transmitter of broadcast singal, and described SCPC transmitter comprises:
Data are inserted the unit, are used to carry out the interlace operation of dividing and inserting the broadcast singal that will send;
Transmission frame forms the unit, is used for producing frame from described broadcast singal;
Pilot plug-in unit is used for pilot tone is inserted the frame that comprises the field sync information and the generation of section synchronizing information;
Modulating unit is used for carrying out modulation to inserting frame from the pilot tone of described pilot plug-in unit; And
The radio frequency up converter is used for operating carrying out the radio frequency up conversion from the modulation-frame of described modulating unit,
Wherein said transmission frame forms the unit and comprises:
The chnnel coding unit is used for broadcast singal is carried out chnnel coding, so that the channel error that produces between the correction signal transmission period; And
Many converting units, be used for to be formatted into the data of two fields from the chnnel coding broadcast singal of described chnnel coding unit output, each field is formed by a plurality of sections, be used for the section synchronizing information is inserted each section of chnnel coding broadcast singal, and each field of field sync information being inserted the chnnel coding broadcast singal, to form frame according to the business model information corresponding to the data that will send, described field sync information comprises the code element that changes according to business model information on number.
2. SCPC transmitter as claimed in claim 1, wherein said each field sync information that is inserted into each field of data has identical sequence.
3. SCPC transmitter as claimed in claim 1 also comprises source encoding unit, is used for described business model information is offered described many converting units.
4. SCPC transmitter as claimed in claim 1 comprises that also business model information provides the unit, is used for described business model information is offered described many converting units.
5. SCPC transmitter as claimed in claim 1, wherein the number of the code element of field sync information is the integral multiple of number of symbols in each section.
6. SCPC transmitter as claimed in claim 5, wherein business model information is one of HDTV pattern information and SDTV pattern information.
7. SCPC transmitter as claimed in claim 6, wherein when business model information is the HDTV pattern information, the number of symbols that is inserted into the field sync information in the chnnel coding broadcast singal by many converting units equals the code element number in each section.
8. SCPC transmitter as claimed in claim 6, wherein when business model information is the SDTV pattern information, the number of symbols that is inserted into the field sync information in the chnnel coding broadcast singal by many converting units is several times of code element number in each section.
9. as the described SCPC transmitter in one of claim 7 or 8, wherein field sync information comprises PN (pseudo noise) sequence and prefetch code.
10. SCPC transmitter as claimed in claim 9, wherein the code element number in each section is 828.
11. SCPC transmitter as claimed in claim 10, wherein the code element number of PN (pseudo noise) sequence is 812, and the code element number of prefetch code is 16.
12. SCPC transmitter as claimed in claim 8, wherein by many converting units be inserted in the chnnel coding broadcast singal with code element number in the field sync information of the field sync information position adjacent of preceding insertion respective field be several times of code element number in each section.
13. SCPC transmitter as claimed in claim 12, wherein many converting units will be inserted PN (pseudo noise) sequence based on the business model information that the input data transfer rate is determined by using the predetermined code element of PN (pseudo noise) sequence.
14. the frame forming device of a SCPC transmitter comprises:
The chnnel coding unit is used for broadcast singal is carried out chnnel coding, so that proofread and correct the channel error that produces between the signal transmission period; And
Many converting units, be used for the section synchronizing information is inserted each section of chnnel coding broadcast singal, and field sync information is inserted each field of chnnel coding broadcast singal, to form frame according to the business model information corresponding to the data that will send, described field sync information comprises the code element that changes according to business model information on number.
15. frame forming device as claimed in claim 14, wherein many converting units are inserted the chnnel coding broadcast singal with a plurality of code elements according to business model information with field sync information, and the code element number of described field sync information is the integral multiple of code element number in each section.
16. frame forming device as claimed in claim 14, wherein business model information is one of HDTV pattern information and SDTV pattern information.
17. frame forming device as claimed in claim 14, wherein when business model information is the HDTV pattern information, the code element number that is inserted into the field sync information in the chnnel coding broadcast singal by many converting units equals the code element number in each section.
18. frame forming device as claimed in claim 14, wherein when business model information is the SDTV pattern information, the code element number that is inserted into the field sync information of chnnel coding broadcast singal by many converting units is several times of code element number in each section.
19. as the described frame forming device in one of claim 17 or 18, wherein said field sync information comprises PN (pseudo noise) sequence and prefetch code.
20. frame forming device as claimed in claim 19, wherein the code element number in each section is 828.
21. frame forming device as claimed in claim 20, wherein the code element number of PN (pseudo noise) sequence is 812, and the code element number of prefetch code is 16.
22. frame forming device as claimed in claim 18, wherein being inserted in the chnnel coding broadcast singal adjacent to the code element number in the field sync information of the position of the field sync information that preceding is inserted into respective field by many converting units is several times of code element number in each section.
23. frame forming device as claimed in claim 21, wherein many converting units will be inserted PN (pseudo noise) sequence based on the business model information that the input data transfer rate is determined by using the predetermined code element of PN (pseudo noise) sequence.
24. the method by use SCPC transmitter transmission broadcast singal comprises step:
Broadcast singal is carried out chnnel coding, with the channel error that produces between the correction signal transmission period;
Business model information is provided;
The section synchronizing information is inserted each section of chnnel coding broadcast singal, and each field of field sync information being inserted the chnnel coding broadcast singal, to form frame, described field sync information comprises the code element that changes according to the business model information of being determined by the required transfer rate of the broadcast singal that will send on number;
Pilot tone is inserted described frame, and described frame comprises field sync information and section synchronizing information, and this field sync information comprises the variable number code element;
According to predetermined modulating mode pilot tone is inserted frame and carry out modulation; And
According to predetermined modulating mode, modulation-frame is carried out the radio frequency up conversion.
25. method as claimed in claim 24, each field sync information that wherein is inserted into each field is based on identical sequence.
26. method as claimed in claim 24 wherein provides described business model information from source encoding unit.
27. method as claimed in claim 24 wherein provides the unit that described business model information is provided from professional pattern information.
28. method as claimed in claim 24, wherein the code element number of field sync information is the integral multiple of code element number in each section.
29. method as claimed in claim 28, wherein business model information is one of HDTV pattern information and SDTV pattern information.
30. method as claimed in claim 29, wherein when business model information was the HDTV pattern information, the code element number that inserts the field sync information of chnnel coding broadcast singal equaled code element number in each section.
31. method as claimed in claim 29, wherein when business model information is the SDTV pattern information, the field sync information of inserting the chnnel coding broadcast singal is several times of code element number in each section.
32. as method as described in one of claim 30 or 31, wherein field sync information comprises PN (pseudo noise) sequence and prefetch code.
33. as method as described in the claim 32, wherein the code element number in each section is 828.
34. as method as described in the claim 33, wherein the code element number of PN (pseudo noise) sequence is 812, the code element number of prefetch code is 16.
35. as method as described in the claim 31, wherein being inserted in the chnnel coding broadcast singal adjacent to the field sync information code element number in the position of the field sync information of preceding insertion respective field is several times of code element number in each section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020033270A KR100906339B1 (en) | 2002-06-14 | 2002-06-14 | Single Carrier Transmitter capable of inserting field-synch. of variable symbols into a field |
| KR33270/02 | 2002-06-14 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021469660A Division CN1212733C (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter for inserting field synchronous information into field and method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610094328XA Division CN1878154B (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1708039A true CN1708039A (en) | 2005-12-14 |
| CN1708039B CN1708039B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004101021410A Pending CN1625251A (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
| CN2005100750193A Expired - Lifetime CN1708039B (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
| CNB021469660A Expired - Lifetime CN1212733C (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter for inserting field synchronous information into field and method thereof |
| CNB021469679A Expired - Lifetime CN1204746C (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
| CN200610094328XA Expired - Lifetime CN1878154B (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
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| CNA2004101021410A Pending CN1625251A (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021469660A Expired - Lifetime CN1212733C (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter for inserting field synchronous information into field and method thereof |
| CNB021469679A Expired - Lifetime CN1204746C (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
| CN200610094328XA Expired - Lifetime CN1878154B (en) | 2002-06-14 | 2002-10-29 | Single carrier transmitter with field inserted field synchronizing information and method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100906339B1 (en) |
| CN (5) | CN1625251A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100906339B1 (en) * | 2002-06-14 | 2009-07-06 | 삼성전자주식회사 | Single Carrier Transmitter capable of inserting field-synch. of variable symbols into a field |
| CN100356787C (en) * | 2004-03-29 | 2007-12-19 | 上海交通大学 | Single-frequency network signal fedback mean in digital TV ground broadcast transmission |
| US8730877B2 (en) * | 2005-06-16 | 2014-05-20 | Qualcomm Incorporated | Pilot and data transmission in a quasi-orthogonal single-carrier frequency division multiple access system |
| KR101457830B1 (en) * | 2005-09-29 | 2014-11-05 | 인터디지탈 테크날러지 코포레이션 | Mimo beamforming-based single carrier frequency division multiple access system |
| JP4725648B2 (en) * | 2007-02-07 | 2011-07-13 | 日本電気株式会社 | Channel estimation apparatus, equalization apparatus, and estimation and equalization method thereof |
| KR101343407B1 (en) | 2007-02-26 | 2013-12-20 | 삼성전자주식회사 | Digital transmission system for transmitting additional data and method thereof |
| KR101172792B1 (en) | 2008-11-26 | 2012-08-20 | 한국방송공사 | Added information insertion apparatus and method in broadcasting system |
| CN104580057B (en) * | 2014-12-30 | 2018-08-28 | 江苏中兴微通信息科技有限公司 | A kind of time domain pilot and its synchronous method of single carrier MIMO system |
| CN114826473A (en) * | 2022-04-29 | 2022-07-29 | 上海星思半导体有限责任公司 | Timing information transmission method and transmission device, terminal equipment and processor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5534938A (en) * | 1991-07-18 | 1996-07-09 | Citta; Richard W. | Digital TV system using segment and field sync signals |
| US5602595A (en) * | 1993-12-29 | 1997-02-11 | Zenith Electronics Corporation | ATV/MPEG sync system |
| US6084642A (en) * | 1996-10-07 | 2000-07-04 | Zenith Electronics Corporation | Receiver for adjusting sync levels in VSB systems |
| KR100227804B1 (en) * | 1997-07-08 | 1999-11-01 | 김영환 | Tap coefficient updating method of channel equalizer and its appratus using variable adaptive constant |
| KR20000027180A (en) * | 1998-10-27 | 2000-05-15 | 김영환 | Device for updating tap coefficients of channel equalizer |
| CN1111337C (en) * | 1999-07-16 | 2003-06-11 | 国家科技委员会高技术研究发展中心 | Ground transmission system for digital high-definition television |
| KR100859878B1 (en) * | 2002-05-30 | 2008-09-24 | 삼성전자주식회사 | OFDM transmitter capable of inserting the PN in every the number the OFDM symbols variably according to service-mode of OFDM signal |
| KR100906339B1 (en) * | 2002-06-14 | 2009-07-06 | 삼성전자주식회사 | Single Carrier Transmitter capable of inserting field-synch. of variable symbols into a field |
-
2002
- 2002-06-14 KR KR1020020033270A patent/KR100906339B1/en active IP Right Grant
- 2002-10-29 CN CNA2004101021410A patent/CN1625251A/en active Pending
- 2002-10-29 CN CN2005100750193A patent/CN1708039B/en not_active Expired - Lifetime
- 2002-10-29 CN CNB021469660A patent/CN1212733C/en not_active Expired - Lifetime
- 2002-10-29 CN CNB021469679A patent/CN1204746C/en not_active Expired - Lifetime
- 2002-10-29 CN CN200610094328XA patent/CN1878154B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212733C (en) | 2005-07-27 |
| CN1878154A (en) | 2006-12-13 |
| CN1467996A (en) | 2004-01-14 |
| KR100906339B1 (en) | 2009-07-06 |
| CN1204746C (en) | 2005-06-01 |
| CN1625251A (en) | 2005-06-08 |
| CN1878154B (en) | 2011-12-14 |
| CN1708039B (en) | 2010-07-21 |
| KR20030095724A (en) | 2003-12-24 |
| CN1466380A (en) | 2004-01-07 |
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