US 2020/0052952 A1Published application

Transmitter and receiver and corresponding methods

AssigneesFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Friedrich-Alexander-Universitaet Erlangen-Nuernberg

InventorsJakob Kneissl, Gerd Kilian, Josef Bernhard, Joerg Robert, Johannes Wechsler, Stefan Ereth, Wolfgang Koch

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Abstract

A transmitter is configured to transmit at least one signal with a pilot sequence having a plurality of pilot symbols, wherein the transmitter has a signal generator, wherein the signal generator provides the pilot sequence, wherein the signal generator provides the pilot sequence such that the pilot sequence has at least two symbol groups each having at least two pilot symbols, and the symbol groups, when evaluating a signal received by a receiver as a result of the transmission of the signal with respect to a phase, the symbol groups generate phase errors that depend on a temporal off-set between a reference point in time of the transmission of the signal by the transmitter and a value assumed and/or estimated for the evaluation for the reference point in time, said phase errors essentially mutually compensating each other across the symbol groups in the evaluation.

Claims16

Dependent claims

A transmitter,

wherein the transmitter is configured to transmit at least one signal with a pilot sequence comprising several pilot symbols,
wherein the transmitter comprises a signal generator,
wherein the signal generator provides the pilot sequence,
wherein the signal generator provides the pilot sequence such that the pilot sequence comprises at least two symbol groups with at least two pilot symbols each, and
wherein, in an evaluation of a signal received by a receiver as a result of the transmission of the signal with respect to a phase, the symbol groups generate phase errors that depend on a time offset between a reference point in time of the transmission of the signal by the transmitter and a value assumed and/or estimated for the evaluation for the reference point in time, said phase errors essentially mutually compensating each other across the symbol groups in the evaluation wherein the signal generator provides the pilot sequence with a length of at least eight or twelve pilot symbols such that the pilot sequence or a portion of the pilot sequence that forms part of the pilot sequence once or several times has one of the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1],
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation.

34 more elements

A transmitter,

wherein the transmitter is configured to transmit at least two signals each comprising a subpilot sequence with a plurality of pilot symbols,
wherein the transmitter comprises a signal generator,
wherein the signal generator provides the subpilot sequence,
wherein the signal generator provides the subpilot sequences of the signals such that the subpilot sequences each have at least one symbol group with at least two pilot symbols, and
wherein the symbol groups of the signals generate phase errors which are dependent on a time offset between a reference point in time of the respective transmission of a signal and a value assumed and/or estimated for the evaluation for the reference point in time during an evaluation of signals received from a receiver as a result of the transmission of the signals with respect to a phase, said phase errors substantially compensating each other during the evaluation jointly across the signals,
wherein the signal generator provides the subpilot sequences so that the subpilot sequences altogether comprise a portion which is present in a single or multiple form and has the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1] or
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation.

35 more elements

A method for transmitting signals,

wherein the signals are transmitted with a pilot sequence each comprising a plurality of pilot sequence symbols,
wherein the pilot sequences are provided such that the pilot sequences each comprise at least two symbol groups each comprising at least two pilot symbols, and
wherein the symbol groups during an evaluation of a signal received from a receiver as a result of the transmission of the signal with respect to a phase of a time offset between a reference point in time of a transmission of the signal and a value assumed and/or estimated for the evaluation for the reference point in time generate dependent phase errors which substantially compensate each other during the evaluation over the symbol groups,
wherein the signal generator provides the pilot sequence with a length of at least eight or twelve pilot symbols such that the pilot sequence or a portion of the pilot sequence that forms part of the pilot sequence once or several times has one of the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1] or
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation.

33 more elements

A method for transmitting signals,

wherein at least two signals are transmitted each with a subpilot sequence comprising a plurality of pilot sequence symbols,
wherein the subpilot sequences are provided such that the subpilot sequence each comprises at least one symbol group each comprising at least two pilot symbols, and
wherein the symbol groups during an evaluation of a signal received from a receiver as a result of the transmission of the signal with respect to a phase of a time offset between a reference point in time of a transmission of the signal and a value assumed and/or estimated for the evaluation for the reference point in time generate dependent phase errors which substantially compensate each other during the evaluation across the signals,
wherein the signal generator provides the subpilot sequences so that the subpilot sequences altogether comprise a portion which is present in a single or multiple form and has the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1] or
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation.

33 more elements

A non-transitory digital storage medium having a computer program stored thereon to perform the method for transmitting signals,

wherein the signals are transmitted with a pilot sequence each comprising a plurality of pilot sequence symbols,
wherein the pilot sequences are provided such that the pilot sequences each comprise at least two symbol groups each comprising at least two pilot symbols, and
wherein the symbol groups during an evaluation of a signal received from a receiver as a result of the transmission of the signal with respect to a phase of a time offset between a reference point in time of a transmission of the signal and a value assumed and/or estimated for the evaluation for the reference point in time generate dependent phase errors which substantially compensate each other during the evaluation over the symbol groups,
wherein the signal generator provides the pilot sequence with a length of at least eight or twelve pilot symbols such that the pilot sequence or a portion of the pilot sequence that forms part of the pilot sequence once or several times has one of the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1] or
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation,
when said computer program is run by a computer.

34 more elements

A non-transitory digital storage medium having a computer program stored thereon to perform the method for transmitting signals,

wherein at least two signals are transmitted each with a subpilot sequence comprising a plurality of pilot sequence symbols,
wherein the subpilot sequences are provided such that the subpilot sequence each comprises at least one symbol group each comprising at least two pilot symbols, and
wherein the symbol groups during an evaluation of a signal received from a receiver as a result of the transmission of the signal with respect to a phase of a time offset between a reference point in time of a transmission of the signal and a value assumed and/or estimated for the evaluation for the reference point in time generate dependent phase errors which substantially compensate each other during the evaluation across the signals,
wherein the signal generator provides the subpilot sequences so that the subpilot sequences altogether comprise a portion which is present in a single or multiple form and has the following forms:
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 0, 1, 0, 1, 1, 1] or
[1, 1, 1, 0, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1],
[0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1],
[0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1],
[0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1],
[0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0],
[0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0],
[0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1],
[1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0],
[1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0],
[1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0],
[1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0],
[1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0] or
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0],
wherein the zeros and ones are each pilot sequence bits prior to a modulation,
when said computer program is run by a computer.

34 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/598,871Filed 10 Oct 2019
Priority: DE 102017206259.211 Apr 2017
Published: 13 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 27/2613
Details of reference signals: structure of the reference signals
H04L 27/2657
Synchronisation arrangements: carrier synchronisation
H04L 27/2675
Characterised by synchronisation parameters: pilot or known symbols
H04L 27/2656
Synchronisation arrangements: frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe…