Design method for data frame suitable for high-speed motion reception and transmission system
A technology of high-speed movement and design method, applied in the field of communication, which can solve the problems of insufficient acquisition of additional information capacity and insufficient utilization of spectrum resources.
Active Publication Date: 2018-12-11
SHANGHAI NAT ENG RES CENT OF DIGITAL TELEVISION
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[0010] It should be noted that the above is only a combination of specific parameters in the ATSC3.0 standard to reflect the background technical problems such as insufficient use of spectrum resources and insufficient acquisition of additional information capacity. problem, but a technical problem that also applies to the same principles encountered in other transport protocol standards
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[0037] The skip mode discussed in the present invention can be applied not only to its innovative Internet services, but also to traditional broadcasting services and other communication transmission fields. In addition to the high-speed motion service reception of the new ATSC3.0 service, this proposal can also be applied For other types of services, such as handheld mobile reception (pedestrian and in-door) using cell phones or tablets and "fixed reception in the home" using rooftop or indoor antennas / set-top boxes / large-screen displays (fixed receptions in the home)", which is also applicable to other communication transmission protocol standards,
[0038] The latter two (handheld mobile reception and fixed reception in the home) can be significantly enhanced in the robustness of the preamble despite the small increase in information capacity through the skip mode of the present invention.
[0039] In this specification, the term suitable for high-speed motion reception is ...
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The invention provides a design method for a data frame suitable for high-speed motion reception and a transmission system. The design method is characterized in that the data frame comprises a self-bootstrap program, a prefix code and at least one data sub-frame, wherein the self-bootstrap program, the prefix code and the at least one data sub-frame are cascaded, a plurality of data frames do nottransmit a self-bootstrap program or only transmit a part of the self-bootstrap program, and the reserved gap is used for obtaining additional information capacity, and the time domain is evenly divided into a plurality of time segments according to the duration of the data frames, and skipping at the time within a certain range before and after the change moment of the technical mode combinationTMC is avoided. At least one skipped time fragment is uniformly distributed in other remaining time, and the data frames in the skipped time fragment do not transmit the self-bootstrap program or only transmit a part of the self-bootstrap program. On the premise that the change of the technical combination mode is not affected, robustness enhancement and information capacity increase are achieved.
Description
technical field [0001] The invention belongs to the field of communications, and in particular relates to a skipping bootstrap program, a preamble method and a system suitable for high-speed motion reception. Background technique [0002] ATSC (Advanced Television System Committee) released two standards, A / 321 self-booting program and A / 322 physical layer protocol in March 2016 and September 2016. The two standards are A / 321 standard, system discovery and detection, 23 March 2016; and A / 322 Standard, physical layer protocol, 7 September 2016. [0003] Among them, the bootstrap of A / 321 and the preamble of A / 322 have excellent performance and are ready to start new services of ATSC3.0. This standard is applicable to 6,7, 8 and 2*5=10MHz channel bandwidth, the advantages are obvious and the performance is relatively excellent, and it has been launched first in Korea. [0004] However, the advantages also bring disadvantages. In the case of high-speed motion reception, the s...
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Login to View More IPC IPC(8): H04N21/2343H04N21/2385H04N21/438H04N21/4402
CPCH04N21/234381H04N21/2385H04N21/438H04N21/440281
Inventor 张文军陈科徐孟侠
Owner SHANGHAI NAT ENG RES CENT OF DIGITAL TELEVISION