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    COMMUNICATION DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODS
    21.
    发明申请
    COMMUNICATION DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODS 审中-公开

    公开(公告)号：US20200028630A1

    公开(公告)日：2020-01-23

    申请号：US16483748

    申请日：2018-01-29

    Applicant: Sony Corporation

    Inventor： Martin Warwick BEALE ,  Samuel Asangbeng ATUNGSIRI ,  Shin Horng WONG

    IPC: H04L1/18 ,  H04L1/20

    Abstract: A communications device configured to receive data transmitted as encoded data packets from an infrastructure equipment of a wireless communications network. Each of the encoded data packets are transmitted as a control signal component and a data signal component. The control signal component carries control information for detecting and decoding the data signal component in which the encoded data carried by the encoded data packet is transmitted. As part of the ARQ-type protocol, at least the control signal component may be re-transmitted. By including with the control information carried by the retransmitted control signals an indication of at least a temporal location of the data signal component, which has already been transmitted and received in a buffer of a receiver, an improvement in a use of communications resource can be provided and also in some embodiments an improvement in a likelihood of correctly detecting and decoding an encoded data packet.

    RECEIVER AND RECEIVING METHOD FOR HIERARCHICAL MODULATION IN SINGLE FREQUENCY NETWORKS
    22.
    发明申请
    RECEIVER AND RECEIVING METHOD FOR HIERARCHICAL MODULATION IN SINGLE FREQUENCY NETWORKS 审中-公开

    公开(公告)号：US20170279651A1

    公开(公告)日：2017-09-28

    申请号：US15481252

    申请日：2017-04-06

    Applicant: SONY CORPORATION

    Inventor： Samuel Asangbeng ATUNGSIRI ,  Matthew Paul Taylor ,  Obioma Okehie

    IPC: H04L27/26 ,  H04L27/01 ,  H04L27/34 ,  H04L5/00

    CPC classification number: H04L27/2649 ,  H04L5/0007 ,  H04L27/01 ,  H04L27/2627 ,  H04L27/3488

    Abstract: A receiver recovers local service data symbols from first Orthogonal Frequency Division Multiplexed (OFDM) symbols in the presence of second OFDM symbols, the second OFDM symbols carry national broadcast data symbols and modulated on to the sub-carriers of the second OFDM symbols using a first modulation scheme, and the first OFDM symbols carry the national broadcast data symbols and the local service data symbols from a local insertion pipe and modulated on to the sub-carriers of the first OFDM symbols using a second modulation scheme. The receiver comprises an OFDM detector which includes an equaliser for recovering local service modulated sub-carriers of the second modulation scheme by generating an estimate of a combined channel ([Hn(z)+Hl(z)]) via which the first and second OFDM symbols have passed using the pilot sub-carrier symbols of the first and second OFDM symbols; generating an estimate of national broadcast modulation symbols from the modulated data bearing sub-carriers of the first modulation scheme from the second OFDM symbols (Ŝ(z)); generating an estimate of a convolution of the combined channel and the national broadcast modulation symbols (Ŝ(z)[Hn(z)+Hl(z)]); generating an estimate of a component of the received base band signal representing the local service modulation symbols of the first OFDM symbol; generating an estimate of a channel via which the first OFDM symbols were received using the local pilot symbols (Ĥl(z)); and generating an estimate of local service data symbols from a combination of the estimate of the component of the received signal representing the modulation symbols carrying the local service data and the estimate of the channel via which the first OFDM symbols were received ( D ~  ( z ) ≈ R  ( z ) - S ^  ( z )  [ H n  ( z ) + H l  ( z ) ] H ^ l  ( z ) ) .

    TRANSMITTER, RECEIVER AND METHODS AND COMPUTER READABLE MEDIUM
    24.
    发明申请
    TRANSMITTER, RECEIVER AND METHODS AND COMPUTER READABLE MEDIUM 有权

    公开(公告)号：US20170237591A1

    公开(公告)日：2017-08-17

    申请号：US15403590

    申请日：2017-01-11

    Applicant: Sony Corporation

    Inventor： Samuel Asangbeng ATUNGSIRI ,  LachIan Bruce MICHAEL

    IPC: H04L27/26 ,  H04B17/336

    CPC classification number: H04L27/2602 ,  H04B17/336 ,  H04L27/2613 ,  H04L27/2636 ,  H04L27/2646 ,  H04L27/3488

    Abstract: A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols, the transmitter comprising frame builder circuitry configured to receive the payload data to be transmitted and to receive signalling information for use in detecting and recovering the payload data at a receiver, and to form the payload data into frames with the signalling information as a preamble to each of the frames for transmission. Modulator circuitry is configured to modulate one or more first OFDM symbols with the signalling information to form the preamble of each frame and to modulate one or more second OFDM symbols with the payload data to form post preamble waveform of each frame. Transmission circuitry is configured to transmit the one or more first OFDM symbols as a preamble and the second OFDM symbols as the post preamble waveform. The transmitter includes signature sequence circuitry configured to provide a transmitter identifier signature sequence, the transmitter identifier signature sequence being one of a set of signature sequences to represent one of a predetermined set of identifiers which identify the transmitter to a receiver, and a combiner configured to combine the transmitter identifier signature sequence with one or more of the first OFDM symbols of the preamble or one or more additional OFDM symbols of the preamble dedicated to carry the transmitter identifier. A receiver can therefore be configured to identify the one or more of the first OFDM symbols of the preamble or one or more additional OFDM symbols of the preamble dedicated to carry the transmitter identifier, and to identify the transmitter of the received signal from the transmitter identifier sequence.

    RECEIVER AND METHOD OF RECEIVING
    25.
    发明申请
    RECEIVER AND METHOD OF RECEIVING 有权

    公开(公告)号：US20170026152A1

    公开(公告)日：2017-01-26

    申请号：US15209117

    申请日：2016-07-13

    Applicant: Sony Corporation

    Inventor： Samuel Asangbeng ATUNGSIRI ,  Hidetoshi KAWAUCHI ,  Tatsuki AMIMOTO ,  Yuken GOTO

    IPC: H04L5/00 ,  H04L27/22 ,  H04J13/00

    CPC classification number: H04L5/0007 ,  H04J13/0062 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/22 ,  H04L27/2613 ,  H04L27/2649 ,  H04L27/2666 ,  H04W72/042 ,  H04W76/10

    Abstract: A receiver for detecting and recovering payload data from a received signal, the receiver comprising: a radio frequency demodulation circuit configured to detect and to recover the received signal, the received signal having been formed and transmitted by a transmitter relative to which the receiver is moving at a speed less than or equal to a predetermined maximum speed, the received signal having been formed and transmitted by the transmitter to carry the payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in one or more of a plurality of time divided frames, each frame including a preamble including a plurality of bootstrap OFDM symbols, one or more of the bootstrap OFDM symbols of the preamble carrying a signature sequence, and each of the one or more of the bootstrap OFDM symbols carrying a signature sequence carrying signalling data represented as a relative cyclic shift of the bootstrap OFDM symbol, wherein the signature sequence carried by each of the one or more of the bootstrap OFDM symbols comprises a combination of a Zadoff-chu sequence and a pseudorandom-noise sequence, a detector circuit configured to detect and to convert a useful part of the bootstrap OFDM symbols into the frequency domain, a bootstrap processor configured to detect the signalling data from the one or more of the bootstrap OFDM symbols in the frequency domain, and a demodulator circuit configured to recover the payload data from the payload OFDM symbols using the signalling data, wherein the bootstrap processor comprises: a divider configured to divide a first bootstrap OFDM symbol in the frequency domain by a second bootstrap OFDM symbol in the frequency domain, the first and second bootstrap OFDM symbols being adjacent OFDM bootstrap symbols in the received signal, and one of the first and second bootstrap OFDM symbols being a subject bootstrap OFDM symbol which is one of the bootstrap OFDM symbols carrying signalling data; a divider and multiplier unit configured to divide the output of the divider by the pseudorandom-noise sequence of the signature sequence of the first bootstrap OFDM symbol and multiply the output of the divider by the pseudorandom-noise sequence of the signature sequence of the second bootstrap OFDM symbol; a phase change estimator configured to detect an average change in phase between adjacent sub-carriers of the subject bootstrap OFDM symbol on the basis of the output of the divider and multiplier unit, and a signalling data detector configured to identify the signalling data of the subject bootstrap OFDM symbol based on the detected average change in phase which is representative of the cyclic shift applied to the subject bootstrap OFDM symbol.

    TERMINAL DEVICE, TELECOMMUNICATIONS APPARATUS AND METHODS
    26.
    发明申请
    TERMINAL DEVICE, TELECOMMUNICATIONS APPARATUS AND METHODS 有权

    公开(公告)号：US20220039026A1

    公开(公告)日：2022-02-03

    申请号：US17277294

    申请日：2019-09-20

    Applicant: Sony Corporation

    Inventor： Vivek SHARMA ,  Yuxin WEI ,  Hideji WAKABAYASHI ,  Samuel Asangbeng ATUNGSIRI

    IPC: H04W52/24 ,  H04L1/00 ,  H04W52/28

    Abstract: A method of transmitting data by a terminal device operating in a wireless communications system comprising a non-terrestrial network access node and the terminal device, comprises the terminal device receiving an indication of an initial value of a set of one or more communications parameters for transmitting radio signals carrying the data, and modelling a state of a communications channel from the terminal device to a non-terrestrial network access node, in which a link adaptation procedure is used to select a revised value of the set of the one or more communications parameters with respect to the initial value of the set of the one or more communications parameters for the modelled channel state, and the method includes adapting the value of the set of the one or more communications parameters according to the revised value.

    COMMUNICATIONS DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODS
    30.
    发明申请
    COMMUNICATIONS DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODS 审中-公开

    公开(公告)号：US20200059895A1

    公开(公告)日：2020-02-20

    申请号：US16610531

    申请日：2018-05-04

    Applicant: Sony Corporation

    Inventor： Samuel Asangbeng ATUNGSIRI ,  Martin Warwick BEALE ,  Shin Horng WONG

    IPC: H04W72/00 ,  H04W56/00 ,  H04L5/00 ,  H04L1/00

    Abstract: In a wireless communications system, an infrastructure equipment is configured to form a synchronization signal block comprising one or more Orthogonal Frequency Division Multiplexed, OFDM, symbol carrying a synchronization sequence and one or more other OFDM symbols carrying information of a physical broadcast channel of the wireless access interface. Each of the one or more OFDM symbols of the synchronization block is formed by a plurality of frequency domain sub-carrier signals each being transmitted over the duration of the OFDM symbol in a resource element of the wireless access interface. Each OFDM symbol of the synchronization signal block has the same sub-carrier spacing, and each of the one or more other OFDM symbols carrying information of a physical broadcast channel of the wireless access interface is arranged to include demodulation reference symbols.

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