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公开(公告)号：US20210184905A1
公开(公告)日：2021-06-17
申请号：US17103252
申请日：2020-11-24
申请人： SATURN LICENSING LLC
摘要： A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The first OFDM symbol is a first type having a number of sub-carriers which is less than or equal to the number of sub-carriers of the one or more second OFDM symbols of a second type and a guard interval for the first OFDM symbol is selected in dependence upon the longest possible guard interval of the second OFDM symbol. Accordingly an OFDM communications system can be formed in which data is transmitted using a frame structure in which a guard interval is adapted to allow a mix of different types of OFDM symbols.
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公开(公告)号：US20170331656A1
公开(公告)日：2017-11-16
申请号：US15664918
申请日：2017-07-31
申请人： SATURN LICENSING LLC
CPC分类号： H04L27/2602 , H03M13/2742 , H03M13/6552 , H04L1/0057 , H04L1/0071 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L27/2601 , H04L27/2626 , H04L27/2646
摘要： A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit.
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3.发明申请公开(公告)号：US20170264473A1
公开(公告)日：2017-09-14
申请号：US15493475
申请日：2017-04-21
申请人： SATURN LICENSING LLC
CPC分类号： H04L27/2602 , H04L1/0017 , H04L1/007 , H04L5/0007 , H04L5/0044 , H04L27/2607
摘要： A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The first OFDM symbol is a first type having a number of sub-carriers which is less than or equal to the number of sub-carriers of the one or more second OFDM symbols of a second type and a guard interval for the first OFDM symbol is selected in dependence upon the longest possible guard interval of the second OFDM symbol. Accordingly an OFDM communications system can be formed in which data is transmitted using a frame structure in which a guard interval is adapted to allow a mix of different types of OFDM symbols.
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公开(公告)号：US20230261820A1
公开(公告)日：2023-08-17
申请号：US18309617
申请日：2023-04-28
申请人： Saturn Licensing LLC
CPC分类号： H04L5/0044 , H04L5/0007 , H04L5/0053 , H04L5/0091 , H04L27/2613 , H04J11/00 , H04L27/265 , H04J2011/0013
摘要： A receiver for detecting and recovering payload data from a received signal comprises a radio frequency demodulation circuit, a detector circuit and a demodulator circuit. The radio frequency demodulation circuit detects the received signal. The received signal carries the payload data as OFDM symbols in one or more of a plurality of time divided frames, each frame including a bootstrap signal, a preamble signal and a plurality of sub-frames. The demodulator circuit detects bootstrap OFDM symbols to identify communications parameters for detecting the fixed length signalling data, detects the fixed length signalling data to identify the communications parameters for detecting the variable length signalling data, detects the variable length signalling data, and uses the fixed and variable length signalling data to detect the payload data.
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公开(公告)号：US20220029759A1
公开(公告)日：2022-01-27
申请号：US17352213
申请日：2021-06-18
申请人： SATURN LICENSING LLC
摘要： A receiver for detecting and recovering payload data from a received signal is provided. The receiver includes a detector, a frequency synchronizer, and a demodulator. The receiver is configured to detect the received signal. The received signal includes the payload data and signalling data for use in detecting and recovering the payload data. The frequency synchronizer is configured to process the received signal so as to compensate for a frequency offset in the received signal. The demodulator is configured to detect the one or more first symbols and the one or more second symbols, to recover the signalling data from the one or more first symbols, and to use the signalling data to recover the payload data from the one or more second symbols. The sequence is a signature sequence associated with a transmitter of the received signal.
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公开(公告)号：US20190305904A1
公开(公告)日：2019-10-03
申请号：US16289890
申请日：2019-03-01
申请人： SATURN LICENSING LLC
摘要： A receiver for detecting and recovering payload data from a received signal is provided. The receiver includes a detector, a frequency synchronizer, and a demodulator. The receiver is configured to detect the received signal. The received signal includes the payload data and signalling data for use in detecting and recovering the payload data. The frequency synchronizer is configured to process the received signal so as to compensate for a frequency offset in the received signal. The demodulator is configured to detect the one or more first symbols and the one or more second symbols, to recover the signalling data from the one or more first symbols, and to use the signalling data to recover the payload data from the one or more second symbols. The sequence is a signature sequence associated with a transmitter of the received signal.
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公开(公告)号：US20220248106A1
公开(公告)日：2022-08-04
申请号：US17526787
申请日：2021-11-15
申请人： Saturn Licensing LLC
发明人： Lothar STADELMEIER , Makiko KAN , Nabil LOGHIN , Daniel SCHNEIDER , Jan ZOELLNER , Lachlan Bruce MICHAEL , Yuji SHINOHARA , Samuel Asangbeng ATUNGSIRI , Gholam Hosein ASJADI , Matthew Paul Athol TAYLOR
IPC分类号： H04N21/81 , H04H20/59 , H04L1/00 , H04L27/34 , H04N21/2383 , H04N21/2362 , H04N21/488 , H04N21/438 , H04N21/235 , H04N21/236 , H04N21/435
摘要： A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system comprises a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.
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公开(公告)号：US20210288770A1
公开(公告)日：2021-09-16
申请号：US17334362
申请日：2021-05-28
申请人： Saturn Licensing LLC
摘要： A receiver for detecting and recovering payload data from a received signal comprises a radio frequency demodulation circuit, a detector circuit and a demodulator circuit. The radio frequency demodulation circuit detects the received signal. The received signal carries the payload data as OFDM symbols in one or more of a plurality of time divided frames, each frame including a bootstrap signal, a preamble signal and a plurality of sub-frames. The demodulator circuit detects bootstrap OFDM symbols to identify communications parameters for detecting the fixed length signalling data, detects the fixed length signalling data to identify the communications parameters for detecting the variable length signalling data, detects the variable length signalling data, and uses the fixed and variable length signalling data to detect the payload data.
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公开(公告)号：US20190132176A1
公开(公告)日：2019-05-02
申请号：US16171275
申请日：2018-10-25
申请人： SATURN LICENSING LLC
摘要： A transmitter transmitting payload data using OFDM symbols includes a frame builder configured to receive the payload data and to receive signalling data for use in detecting and recovering the payload data at a receiver, and to form the payload data and the signalling data into frames for transmission. A modulator can modulate a first OFDM symbol with the signalling data forming a first of the frames and modulate one or more second OFDM symbols with the payload data forming one or more other frames, and a transmission unit transmits the first and second OFDM symbols. The first OFDM symbol is combined before transmission with a signature sequence that can be configured to allow for detection of the first OFDM symbol at the receiver and decoding the signalling data before the one or more second OFDM symbols carrying the payload data and at lower signal to noise ratios.
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