Transmitter, receiver and controlling method thereof
US-2015071375-A1 · Mar 12, 2015 · US
Apparatus and method for sending and receiving broadcast signals
US2018367352A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018367352-A1 |
| Application number | US-201816013597-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 20, 2018 |
| Priority date | Jul 27, 2015 |
| Publication date | Dec 20, 2018 |
| Grant date | — |
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- Title
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Abstract
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Disclosed herein is a broadcast signal transmitter. The broadcast signal transmitter according to an embodiment of the present invention includes an input formatting module configured to perform baseband formatting and to output at least one Physical Layer Pipe (PLP) data, a BICM module configured to perform error-correction processing on the PLP data, a framing and interleaving module configured to interleave the PLP data and to generate a signal frame, and a waveform generation module configured to insert a preamble into the signal frame and to generate a broadcast signal by OFDM-modulate the signal frame.
First claim
Opening claim text (preview).
1 .- 14 . (canceled) 15 . A broadcast signal transmitter, comprising: an encoder encode Physical Layer Pipe (PLP) data; a time-interleaver configured to time-interleave the encoded PLP data; a framer configured to generate a signal frame comprising the time-interleaved PLP data, the signal frame comprising a preamble and at least one subframe; a pilot inserter configured to insert pilots into the generated signal frame; and a modulator configured to modulate the signal frame by Orthogonal Frequency Division Multiplexing(OFDM) scheme; wherein the subframe comprises data symbols and at least one Subframe Boundary Symbol (SBS), the data symbols comprising Scattered Pilots (SPs), and the SBS comprises data cells and subframe boundary pilots, wherein the data cells of the SBS comprise active data cells and null cells, wherein the active data cells are at a center and each half of the null cells are at each band edge within data carrier indices, and wherein the preamble comprises first information for indicating Fast Fourier Transform (FFT) size, second information related to SP pattern and third information for indicating SP boosting parameter. 16 . The broadcast signal transmitter of claim 15 , wherein a number of the active data cells of the SBS for the FFT size of 8K, 16K or 32K and for the SP pattern is determined as following table when C red _ coeff =000, for C red _ coeff being a coefficient to control a number of carriers and L1_SP_Boost being the SP boosting parameter. Number of active data carriers in SBS (NoA SBS ) when C red — coeff = 000 L1_SP_Boost SP3_2 SP3_4 SP4_2 SP4_4 SP6_2 SP6_4 SP8_2 SP8_4 8K 000 4560 4560 5136 5136 5712 5712 6000 6000 001 4560 3904 5009 4332 5456 4856 5716 5168 010 4123 2922 4600 3467 5114 4147 5398 4558 011 3801 2148 4278 2868 4843 3588 5188 4078 100 3467 1534 4022 2245 4629 3146 4971 3697 16K 000 9120 9120 10272 10272 11424 11424 12000 12000 001 9120 7807 10017 8663 10912 9708 11431 10331 010 8244 5841 9199 6930 10225 8288 10793 9109 011 7601 4290 8554 5731 9684 7168 10375 8146 100 6933 3063 8043 4484 9256 6282 9939 7383 32K 000 18240 18240 N/A N/A 22848 22848 24000 24000 001 18240 15612 N/A N/A 21823 19412 22861 20658 010 16488 11678 N/A N/A 20449 16570 21585 18212 011 15202 8576 N/A N/A 19367 14329 20747 16283 100 13865 6121 N/A N/A 18510 12555 19876 14755 L1_SP_Boost SP12_2 SP12_4 SP16_2 SP16_4 SP24_2 SP24_4 SP32_2 SP32_4 8K 000 6288 6288 6432 6432 6576 6576 6648 6648 001 5976 5508 6132 5691 6297 5922 6384 6064 010 5729 5010 5919 5252 6123 5564 6231 5757 011 5533 4616 5751 4906 5986 5282 6125 5515 100 5379 4305 5618 4633 5877
Assignees
Inventors
Classifications
of common pilots, i.e. pilots destined for multiple users or terminals · CPC title
by puncturing · CPC title
Use of interleaving (interleaving per se H03M13/27) · CPC title
Time-frequency-space · CPC title
Arrangements for counter-measures when a portion of broadcast information is unavailable · CPC title
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- What does patent US2018367352A1 cover?
- Disclosed herein is a broadcast signal transmitter. The broadcast signal transmitter according to an embodiment of the present invention includes an input formatting module configured to perform baseband formatting and to output at least one Physical Layer Pipe (PLP) data, a BICM module configured to perform error-correction processing on the PLP data, a framing and interleaving module configur…
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04H20/42. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 20 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).