WO2022228117A1 - 一种确定ptrs图案的方法和装置 - Google Patents

一种确定ptrs图案的方法和装置 Download PDF

Info

Publication number
WO2022228117A1
WO2022228117A1 PCT/CN2022/086485 CN2022086485W WO2022228117A1 WO 2022228117 A1 WO2022228117 A1 WO 2022228117A1 CN 2022086485 W CN2022086485 W CN 2022086485W WO 2022228117 A1 WO2022228117 A1 WO 2022228117A1
Authority
WO
WIPO (PCT)
Prior art keywords
ptrs
scheduling bandwidth
overhead
pattern
bandwidth threshold
Prior art date
Application number
PCT/CN2022/086485
Other languages
English (en)
French (fr)
Inventor
徐明慧
刘凤威
张希
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22794588.8A priority Critical patent/EP4287545A1/en
Publication of WO2022228117A1 publication Critical patent/WO2022228117A1/zh
Priority to US18/476,348 priority patent/US20240039668A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation

Definitions

  • the present application relates to the field of communications, and, more particularly, to methods and apparatus for determining PTRS patterns.
  • High-frequency frequency bands above 6G, including 28G, 39G, 60G, 73G, etc.
  • High frequencies are characterized by large bandwidths and highly integrated antenna arrays to achieve high throughput, but at the same time bring serious mid-RF distortion problems.
  • phase noise PPN
  • carrier frequency offset CFO
  • Doppler frequency shift all of which will introduce phase errors, resulting in performance degradation or even failure of high-frequency communication systems.
  • phase noise as an example, as the frequency band increases, the higher the phase noise power spectral density, the greater the impact on the received signal. That is to say, when the frequency band is high, the phase noise will deteriorate, resulting in poor demodulation performance. Therefore, in the new radio (NR) protocol, cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform and discrete Fourier transform extended orthogonal frequency division multiplexing (discrete fourier) Transformation spread OFDM, DFT-s-OFDM) waveforms all introduce a phase tracking reference signal (PTRS) to compensate for phase noise and improve the demodulation performance under phase noise conditions. How to improve spectral efficiency while introducing PTRS is the research problem of this application.
  • CP-OFDM cyclic prefix orthogonal frequency division multiplexing
  • DFT-s-OFDM discrete Fourier transform extended orthogonal frequency division multiplexing
  • the present application provides a method and apparatus for determining a PTRS pattern.
  • a scheduling bandwidth threshold that satisfies the conditions or determining a PTRS pattern that satisfies the conditions.
  • a method of determining a phase tracking reference signal PTRS pattern is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.
  • the method includes: the terminal device receives first scheduling bandwidth threshold information from a network device, the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes at least one of the following: based on the first scheduling bandwidth threshold information
  • the mapping positions corresponding to the modulation symbols of different PTRSs in the PTRS pattern determined by a scheduling bandwidth threshold are different; the mapping positions corresponding to the modulation symbols of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold are discontinuous;
  • the ratio of the total number of modulation symbols in the PTRS pattern determined by the scheduling bandwidth threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols of the PTRS is
  • the PTRS pattern corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval defined by the first scheduling bandwidth threshold by the terminal device satisfies the first condition on the smallest scheduling bandwidth belonging to the scheduling bandwidth interval, so that the terminal device can There is no behavioral ambiguity when determining the PTRS pattern, and demodulation performance is guaranteed to improve spectral efficiency.
  • the terminal device before the terminal device determines a PTRS pattern on an OFDM symbol, it receives scheduling bandwidth information from the network device, where the scheduling bandwidth information indicates the scheduling bandwidth; the terminal device determines the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth. PTRS pattern on one OFDM symbol in .
  • the terminal device can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the terminal device before receiving the first scheduling bandwidth threshold information from the network device, the terminal device determines the second scheduling bandwidth threshold according to its own capabilities; and sends the second scheduling bandwidth threshold to the network device. scheduling bandwidth threshold information, where the second scheduling bandwidth threshold information indicates the second scheduling bandwidth threshold.
  • the terminal device actively reports the second scheduling bandwidth threshold according to its own capabilities, so that the network device can refer to the second scheduling bandwidth threshold when configuring the first scheduling bandwidth threshold.
  • Reporting a set of smaller scheduling bandwidth thresholds in severe cases can make the total number of PTRS modulation symbols corresponding to the scheduling bandwidth N RB more, greater than or equal to the scheduling reported by the terminal equipment with higher chip quality or better phase noise level
  • the bandwidth threshold value corresponds to the total number of PTRS modulation symbols under the same scheduling bandwidth.
  • the scheduling bandwidth threshold configured by the network device better matches the performance of the current terminal device.
  • a method of determining a phase tracking reference signal PTRS pattern is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.
  • the method includes: a terminal device determines a first PTRS pattern on one OFDM symbol in an OFDM signal according to a third scheduling bandwidth threshold, the first PTRS pattern satisfies a second condition, and the second condition includes at least one of the following Item: the mapping positions corresponding to the modulation symbols of different PTRSs in the first PTRS pattern are different; the mapping positions corresponding to the modulation symbols of the PTRSs of different PTRS groups in the first PTRS pattern are discontinuous; the total modulation symbols in the first PTRS pattern The ratio of the number to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold, the first PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol; where
  • the third scheduling bandwidth threshold can be determined according to the existing protocol.
  • the terminal device needs to ensure that the PTRS pattern on one OFDM symbol in the OFDM signal satisfies the second condition, so that the terminal device does not determine the PTRS pattern. Ambiguity of behavior occurs, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the terminal device determines the first PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the terminal device can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the terminal device determines a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, if the second PTRS pattern does not satisfy the second condition;
  • the second PTRS pattern determines a first PTRS pattern on one OFDM symbol in the OFDM signal, the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern and/or reduce the number of PTRS groups in the second PTRS pattern The number of modulation symbols in the PTRS group is obtained.
  • the first PTRS pattern may be one of the PTRS pattern sets.
  • the terminal device determines that the second PTRS pattern does not satisfy the second condition, it selects the patterns in the PTRS pattern set by decreasing orderly until the first PTRS pattern that satisfies the second condition is obtained, or determines that the pattern satisfies the second condition according to the scheduling bandwidth. For the total modulation symbols of the PTRS under the second condition, the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the PTRS pattern set is a set of PTRS patterns corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval determined by the terminal device according to the scheduling bandwidth threshold of the existing protocol, that is, the third scheduling bandwidth threshold.
  • a method for determining resource units may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.
  • the method includes: the terminal device determines a first overhead of the PTRS, where the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal device, and the symbol-level time-domain density of the PTRS, wherein the PTRS's The total number of modulation symbols is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group; when the first overhead of the PTRS is greater than the second threshold, the second overhead of the PTRS is determined according to the first overhead of the PTRS; the terminal device is based on The overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-layer signaling configuration, and the second overhead of the PTRS determine the number of the first resource elements to which the data
  • the overhead of the PTRS needs to be considered when calculating the number of the first resource units to which the data is mapped, so as to avoid mapping the data to the configured first resource.
  • the actual code rate caused by the time on the unit is high, and the decoding error rate is high, resulting in the problem of low spectral efficiency.
  • the first resource unit is an effective resource unit to which data can be mapped
  • the terminal device can also use the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, the second overhead of the PTRS and other parameters (for example, Reserved resource configuration, unavailable resource configuration) to determine the number of first resource units, this solution does not limit the number of specific parameters for the terminal device to determine the first resource unit.
  • the number of the first resource units may be determined according to the following relational formula:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • a method for determining a phase tracking reference signal PTRS pattern is provided.
  • the method may be performed by a network device, or may also be performed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method includes: the network device sends first scheduling bandwidth threshold information to the terminal device, the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes at least one of the following: based on the first scheduling bandwidth threshold
  • the mapping positions corresponding to the modulation symbols of different PTRSs in the PTRS pattern determined by the scheduling bandwidth threshold are different; the mapping positions corresponding to the modulation symbols of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold are discontinuous; based on the scheduling bandwidth
  • the ratio of the total number of modulation symbols in the PTRS pattern determined by the threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols of the PTRS
  • the network device can satisfy the first condition on the smallest scheduling bandwidth belonging to the scheduling bandwidth interval according to the PTRS pattern corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval defined by the first scheduling bandwidth threshold, so that the network device There is no behavioral ambiguity when determining the PTRS pattern, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the network device sends scheduling bandwidth information to the terminal device, where the scheduling bandwidth information indicates the scheduling bandwidth; the network device determines a PTRS pattern on an OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the network device may also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the network device before the network device sends the first scheduling bandwidth threshold information to the terminal device, the network device receives the second scheduling bandwidth threshold information from the terminal device, and the network device receives the second scheduling bandwidth threshold information from the terminal device.
  • the second scheduling bandwidth threshold information indicates a second scheduling bandwidth threshold, and the second scheduling bandwidth threshold is determined based on the capability of the terminal device; the network device determines the first scheduling bandwidth threshold according to the second scheduling bandwidth threshold.
  • the network device when configuring the first scheduling bandwidth threshold, can refer to the second scheduling bandwidth threshold reported by the terminal device based on its own capabilities. For example, when the chip quality is poor or the phase noise level is relatively poor, the terminal device reports a set of smaller The scheduling bandwidth threshold value of the scheduling bandwidth N RB can make the total number of PTRS modulation symbols corresponding to the scheduling bandwidth N RB more than or equal to the scheduling bandwidth threshold value reported by the terminal equipment with higher chip quality or better phase noise level in the same The total number of PTRS modulation symbols corresponding to the scheduling bandwidth. Thereby, the scheduling bandwidth threshold configured by the network device better matches the performance of the current terminal device.
  • a method for determining a phase tracking reference signal PTRS pattern is provided.
  • the method may be performed by a network device, or may also be performed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method includes: the network device determines a first PTRS pattern on one OFDM symbol in the OFDM signal according to a third scheduling bandwidth threshold, the first PTRS pattern satisfies a second condition, and the second condition includes at least one of the following: the first PTRS pattern
  • the mapping positions corresponding to the modulation symbols of different PTRSs in the PTRS pattern are different; the mapping positions corresponding to the modulation symbols of the PTRSs of different PTRS groups in the first PTRS pattern are discontinuous; the total number of modulation symbols in the first PTRS pattern is within the scheduling bandwidth.
  • the ratio of the number of subcarriers is less than or equal to the first threshold; wherein, the total number of modulation symbols of the PTRS is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group, and the scheduling bandwidth is the bandwidth allocated by the network equipment to the terminal equipment .
  • the third scheduling bandwidth threshold can be determined according to the existing protocol.
  • the network device needs to ensure that the PTRS pattern on one OFDM symbol in the OFDM signal satisfies the second condition, so that the network device does not determine the PTRS pattern. Ambiguity of behavior occurs, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the network device determines the first PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the network device may also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the network device determines a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, and the second PTRS pattern does not satisfy the second condition; the network The device determines the first PTRS pattern on an OFDM symbol in the OFDM signal according to the second PTRS pattern, where the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern, and/or reduce the second PTRS pattern The number of modulation symbols in the PTRS group in the pattern is obtained.
  • the first PTRS pattern may be one of the PTRS pattern sets.
  • the network device determines that the second PTRS pattern does not meet the second condition, it selects the patterns in the PTRS pattern set by decreasing orderly until the first PTRS pattern that satisfies the second condition is obtained, or determines according to the scheduling bandwidth that the pattern satisfies the second condition. For the total modulation symbols of the PTRS under the second condition, the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the PTRS pattern set is a set of PTRS patterns corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval determined by the network device according to the scheduling bandwidth threshold of the existing protocol, that is, the third scheduling bandwidth threshold.
  • a method for determining resource units may be performed by a network device, or may also be performed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method includes: the network device determines a first overhead of the PTRS, where the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal device, and the symbol-level time-domain density of the PTRS, wherein the The total number of modulation symbols is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group; when the first overhead of the PTRS is greater than the second threshold, the second overhead of the PTRS is determined according to the first overhead of the PTRS; the network device is based on The overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-layer signaling configuration, and the second overhead of the PTRS determine the number of first resource elements to which the OFDM signal is mapped.
  • the overhead of the PTRS needs to be considered when calculating the number of the first resource units to which the data is mapped, so that the mapping of the data to the configured first resource can be avoided.
  • the actual code rate caused by the time on the unit is high, and the decoding error rate is high, resulting in the problem of low spectral efficiency.
  • the first resource unit is an effective resource unit to which data can be mapped
  • the network device can also use the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, the second overhead of the PTRS and other parameters (for example, Reserved resource configuration, unavailable resource configuration) to determine the number of first resource units, this solution does not limit the number of specific parameters of the first resource unit determined by the network device.
  • the number of the first resource units may be determined according to the following relational formula:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • an apparatus for determining a PTRS pattern may be a terminal device, or may also be a chip or circuit configured in the terminal device, which is not limited in this application.
  • the apparatus includes a transceiver unit and a processing unit: the transceiver unit is configured to receive first scheduling bandwidth threshold information from a network device, and the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes At least one of the following: mapping positions corresponding to modulation symbols of different PTRSs in the PTRS pattern determined based on the first scheduling bandwidth threshold are different; modulation symbols corresponding to PTRSs of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold The mapping positions are discontinuous; the ratio of the total number of modulation symbols in the PTRS pattern determined based on the first scheduling bandwidth threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols of the
  • the PTRS pattern corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval defined by the first scheduling bandwidth threshold by the terminal device satisfies the first condition on the smallest scheduling bandwidth belonging to the scheduling bandwidth interval, so that the terminal device can There is no behavioral ambiguity when determining the PTRS pattern, and demodulation performance is guaranteed to improve spectral efficiency.
  • the transceiver unit is further configured to receive scheduling bandwidth information from the network device, where the scheduling bandwidth information indicates the scheduling bandwidth; the processing unit is further configured to receive scheduling bandwidth information according to the The scheduling bandwidth threshold and the scheduling bandwidth determine the PTRS pattern on one OFDM symbol in the OFDM signal.
  • the processing unit can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the processing unit is further configured for the terminal device to determine the second scheduling bandwidth threshold according to its own capability; the transceiver unit is further configured to send the second scheduling bandwidth threshold to the network device information, the second scheduling bandwidth threshold information indicates the second scheduling bandwidth threshold.
  • an apparatus for determining a PTRS pattern may be a terminal device, or may also be a chip or circuit configured in the terminal device, which is not limited in this application.
  • the apparatus includes a processing unit and a transceiver unit: the processing unit is configured to determine a first PTRS pattern on an OFDM symbol in an OFDM signal according to a third scheduling bandwidth threshold, where the first PTRS pattern satisfies the second condition,
  • the second condition includes at least one of the following: mapping positions corresponding to modulation symbols of different PTRSs in the first PTRS pattern are different; mapping positions corresponding to modulation symbols of PTRSs of different PTRS groups in the first PTRS pattern are discontinuous;
  • the ratio of the total number of modulation symbols in a PTRS pattern to the number of subcarriers in the scheduling bandwidth is less than or equal to a first threshold, the first PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol; wherein, the
  • the third scheduling bandwidth threshold can be determined according to the existing protocol.
  • the terminal device needs to ensure that the PTRS pattern on one OFDM symbol in the OFDM signal satisfies the second condition, so that the terminal device does not determine the PTRS pattern. Ambiguity of behavior occurs, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the processing unit is further configured to determine the first PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the processing unit can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the processing unit is further configured to determine a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, if the second PTRS pattern does not satisfy the second condition Determine the first PTRS pattern on an OFDM symbol in the OFDM signal according to the second PTRS pattern, the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern, and/or reduce the second PTRS pattern The number of modulation symbols in the PTRS group in the pattern is obtained.
  • the first PTRS pattern may be one of the PTRS pattern sets.
  • the processing unit determines that the second PTRS pattern does not meet the second condition, select the patterns in the PTRS pattern set by decreasing the sequence until the first PTRS pattern that meets the second condition is obtained, or determine according to the scheduling bandwidth.
  • the total modulation symbols of the PTRS that satisfy the second condition are selected, and then the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the PTRS pattern set is a set of PTRS patterns corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval determined by the terminal device according to the scheduling bandwidth threshold of the existing protocol, that is, the third scheduling bandwidth threshold.
  • an apparatus for determining a resource unit may be a terminal device, or may also be a chip or circuit configured in the terminal device, which is not limited in this application.
  • the apparatus includes a processing unit: the processing unit is configured to determine the first overhead of the PTRS, and the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal equipment, and the symbol-level time-domain density of the PTRS, Wherein, the total number of modulation symbols of the PTRS is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group; when the first overhead of the PTRS is greater than the second threshold, the processing unit is also used for according to the first overhead of the PTRS.
  • the processing unit is further configured to determine the number of the first resource elements for mapping data according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-layer signaling configuration, and the second overhead of the PTRS.
  • the overhead of the PTRS needs to be considered when calculating the number of the first resource units to which the data is mapped, so as to avoid mapping the data to the configured effective resource units
  • the actual code rate caused by the above time is high, and the decoding error rate is high, resulting in the problem of low spectral efficiency.
  • the first resource unit is an effective resource unit that can map data
  • the processing unit can also determine the first resource unit according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, the second overhead of the PTRS, and other parameters.
  • the number of a resource unit this solution does not limit the number of specific parameters of the first resource unit determined by the processing unit.
  • the number of the first resource units may be determined according to the following relational formula:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • an apparatus for determining a PTRS pattern may be a network device, or may also be a chip or circuit configured in the network device, which is not limited in this application.
  • the apparatus includes a transceiver unit and a processing unit: the transceiver unit is configured to send first scheduling bandwidth threshold information to a terminal device, where the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes the following At least one item: mapping positions corresponding to modulation symbols of different PTRSs in the PTRS pattern determined based on the first scheduling bandwidth threshold are different; mappings corresponding to modulation symbols of PTRS groups of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold The position is discontinuous; the ratio of the total number of modulation symbols in the PTRS pattern determined based on the scheduling bandwidth threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols
  • the network device can satisfy the first condition on the smallest scheduling bandwidth belonging to the scheduling bandwidth interval according to the PTRS pattern corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval defined by the first scheduling bandwidth threshold, so that the network device There is no behavioral ambiguity when determining the PTRS pattern, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the transceiver unit is further configured to send scheduling bandwidth information to the terminal device, where the scheduling bandwidth information indicates the scheduling bandwidth; the processing unit is further configured to determine an OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth PTRS pattern on.
  • the processing unit can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the transceiver unit before the transceiver unit sends the first scheduling bandwidth threshold information to the terminal device, the transceiver unit is further configured to receive second scheduling bandwidth threshold information from the terminal device , the second scheduling bandwidth threshold information indicates a second scheduling bandwidth threshold, the second scheduling bandwidth threshold is determined based on the capability of the terminal device; the processing unit is further configured to determine the first scheduling bandwidth threshold according to the second scheduling bandwidth threshold.
  • the network device when configuring the first scheduling bandwidth threshold, can refer to the second scheduling bandwidth threshold reported by the terminal device based on its own capabilities. For example, when the chip quality is poor or the phase noise level is relatively poor, the terminal device reports a set of smaller The scheduling bandwidth threshold value can make the total number of PTRS modulation symbols corresponding to the scheduling bandwidth greater than or equal to the scheduling bandwidth threshold value reported by the terminal equipment with higher chip quality or better phase noise level within the same scheduling bandwidth. The corresponding total number of PTRS modulation symbols below. Thereby, the scheduling bandwidth threshold configured by the network device better matches the performance of the current terminal device.
  • an apparatus for determining a PTRS pattern may be a network device, or may also be a chip or circuit configured in the network device, which is not limited in this application.
  • the apparatus includes a transceiver unit and a processing unit: the processing unit is configured to determine a first PTRS pattern on an OFDM symbol in the OFDM signal according to a third scheduling bandwidth threshold, the first PTRS pattern satisfies a second condition, and the second condition Including at least one of the following: mapping positions corresponding to modulation symbols of different PTRSs in the first PTRS pattern are different; mapping positions corresponding to modulation symbols of PTRSs of different PTRS groups in the first PTRS pattern are discontinuous; in the first PTRS pattern The ratio of the total number of modulation symbols to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols of the PTRS is the product of the number of PTRS groups and the number of modulation
  • the third scheduling bandwidth threshold can be determined according to the existing protocol.
  • the network device needs to ensure that the PTRS pattern on one OFDM symbol in the OFDM signal satisfies the second condition, so that the network device does not determine the PTRS pattern. Ambiguity of behavior occurs, and demodulation performance can be guaranteed to improve spectral efficiency.
  • the processing unit is further configured to determine the first PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the processing unit can also determine the PTRS pattern according to other parameters, such as modulation and coding strategy MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the processing unit is further configured to determine a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, when the second PTRS pattern does not satisfy the The second condition; the processing unit is further configured to determine the first PTRS pattern on an OFDM symbol in the OFDM signal according to the second PTRS pattern, where the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern , and/or obtained by reducing the number of modulation symbols in the PTRS group in the second PTRS pattern, optionally, the first PTRS pattern may be one of the PTRS pattern sets.
  • the processing unit determines that the second PTRS pattern does not satisfy the second condition
  • the patterns in the PTRS pattern set are selected in sequence by decreasing order, until the first PTRS pattern that meets the second condition is obtained, or the processing unit is based on The scheduling bandwidth determines the total modulation symbols of the PTRS that satisfy the second condition, and then selects the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols that is less than or equal to the total modulation symbols.
  • the PTRS pattern set is a set of PTRS patterns corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval determined by the network device according to the scheduling bandwidth threshold of the existing protocol, that is, the third scheduling bandwidth threshold.
  • a twelfth aspect provides an apparatus for determining resource units.
  • the apparatus may be a network device, or may also be a chip or circuit configured in the network device, which is not limited in this application.
  • the apparatus includes a processing unit: the processing unit is configured to determine the first overhead of the PTRS, and the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal equipment, and the symbol-level time-domain density of the PTRS, Wherein, the total number of modulation symbols of the PTRS is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group; when the first overhead of the PTRS is greater than the second threshold, the processing unit determines the PTRS according to the first overhead of the PTRS. the second overhead; the processing unit is further configured to determine, according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, and the second overhead of the PTRS
  • the overhead of the PTRS needs to be considered when calculating the number of effective resource units for mapping data, thereby avoiding mapping data to the configured effective resource units.
  • the decoding error rate is high, which leads to the problem of low spectral efficiency.
  • the first resource unit is an effective resource unit to which data can be mapped
  • the network device can also use the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, the second overhead of the PTRS and other parameters (for example, Reserved resource configuration, unavailable resource configuration) to determine the number of first resource units, this solution does not limit the number of specific parameters of the first resource unit determined by the network device.
  • the number of the first resource units may be determined according to the following relationship:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • a thirteenth aspect provides a communication apparatus, which may be the first terminal device of any one of the above-mentioned first to third aspects, or an electronic device configured in the first terminal device, or an electronic device including the first terminal device.
  • the apparatus is configured to perform the method provided in any one of the above-mentioned first to third aspects.
  • the apparatus includes a transceiver and a processor.
  • the apparatus further includes a memory, the processor is coupled to the memory, and can be used to execute the instructions in the memory, so as to realize the first aspect to the third aspect and any one of the possible implementation manners of the first aspect to the third aspect communication method in .
  • the communication device further includes a memory.
  • the apparatus further includes a communication interface to which the processor is coupled.
  • the communication interface may be a transceiver, or an input/output interface.
  • the apparatus is a chip configured in a terminal device.
  • the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processor may also be embodied as processing circuitry or logic circuitry.
  • a fourteenth aspect provides a communication apparatus, which may be the network device in any one of the fourth to sixth aspects above, or an electronic device configured in the network device, or a relatively small device including the network device. big equipment.
  • the apparatus is configured to execute the communication method provided in the first aspect.
  • the communication device includes a transceiver and a processor.
  • the processor is coupled to a memory, and can be configured to execute instructions in the memory, so as to implement the communication method in the fourth aspect to the sixth aspect and any possible implementation manner of the fourth aspect to the sixth aspect.
  • the apparatus further includes a memory.
  • the apparatus further includes a communication interface to which the processor is coupled.
  • the communication interface may be a transceiver, or an input/output interface.
  • the apparatus is a chip configured in a network device.
  • the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or a chip system.
  • the processor may also be embodied as processing circuitry or logic circuitry.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the above-mentioned processor may be one or more chips
  • the input circuit may be input pins
  • the output circuit may be output pins
  • the processing circuit may be transistors, gate circuits, flip-flops and various logic circuits, etc. .
  • the input signal received by the input circuit may be, but not limited to, received and input by the receiver
  • the signal output by the output circuit may be, but not limited to, output to and transmitted by the transmitter
  • the input circuit and the output circuit may be The same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a fifteenth aspect provides a computer program product, the computer program product comprising: a computer program (also referred to as code, or instructions), when the computer program is executed, causes the computer to execute the above-mentioned first to sixth aspects Aspects and methods of any possible implementations of the first to sixth aspects.
  • a computer program also referred to as code, or instructions
  • a computer-readable storage medium stores a computer program (also referred to as code, or instruction), when it runs on a computer, causing the computer to execute the above-mentioned first aspect A method in any one possible implementation manner of the sixth aspect and the first aspect to the sixth aspect.
  • a computer program also referred to as code, or instruction
  • a communication system including the above-mentioned network device and terminal device.
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.
  • FIG. 2 is a schematic diagram of functional modules of a communication system applicable to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the power spectral density of phase noise at different frequency points under different phase noise models.
  • FIG. 4 is a schematic diagram showing the influence of different levels of phase noise on the received signal in the frequency domain.
  • FIG. 5 is a schematic diagram of a PTRS pattern provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a mapping position of a PTRS pattern provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of mapping different PTRS patterns under different scheduling bandwidths provided by an embodiment of the present application.
  • FIG. 8 is an interaction diagram of a process for determining a PTRS pattern provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of determining a first resource unit according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.
  • the communication system 100 includes at least one network device and at least one terminal device.
  • a connection can be established between the terminal device and the network device, and between the terminal device and the terminal device, for communication, and the sending device can indicate the scheduling information of the data through the control information, so that the receiving device can correctly receive the data according to the control information.
  • the communication system 100 includes a plurality of terminal devices.
  • the scheduled node is a terminal device, and the scheduling node may also be a terminal device.
  • the terminal equipment in the embodiments of the present application may refer to user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment .
  • the terminal in the embodiments of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial Wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety wireless terminal in smart city, wireless terminal in smart home, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop ( wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, in 5G networks Terminals or terminals in future evolution networks, etc.
  • wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system.
  • IoT Internet of things
  • Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things. This application does not limit the specific form of the terminal device.
  • the terminal device may be a device for implementing the function of the terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the network device in this embodiment of the present application may be any device with a wireless transceiver function.
  • the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), Radio Network Controller (Radio Network Controller, RNC), Node B (Node B, NB), Base Station Controller (Base Station Controller, BSC) , base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), base band unit (Base Band Unit, BBU), Wireless Fidelity (Wireless Fidelity, WIFI) system
  • the access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. can also be 5G, such as, NR, gNB in the system, or, transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (active antenna unit, AAU for short).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the higher-layer signaling such as the RRC layer signaling
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • the network device may be an apparatus for implementing the function of the network device, or may be an apparatus capable of supporting the network device to implement the function, such as a chip system, and the apparatus may be installed in the network device.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G 5th generation
  • V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to- Infrastructure (vehicle to infrastructure, V2I), vehicle to pedestrian (V2P), etc.
  • LTE-V long term evolution-vehicle
  • LTE-V vehicle networking
  • machine type communication machine type communication
  • This application is specifically applicable to the following scenarios: including but not limited to multi-site transmission (the same UE transmits signals between multiple transmission points at the same time), backhaul, wireless to the home (wireless to the x, WTTx), enhanced mobile broadband Scenarios with higher timing requirements or higher transmission rate requirements, such as (enhanced mobile broadband, eMBB), device to device (device to device, D2D), etc.
  • the present application does not limit the waveform and can be applied to systems based on CP-OFDM or DFT-s-OFDM.
  • FIG. 2 is a schematic diagram of functional modules of a communication system provided by an embodiment of the present application.
  • the uplink in addition to cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) waveforms, the uplink also supports discrete Fourier transform extended positive Alternating frequency division multiplexing waveform (discrete fourier transformation-spread-OFDM, DFT-s-OFDM) (inherited from LTE), this waveform has a peak-to-average power ratio (PAPR) compared to CP-OFDM Low characteristic.
  • PAPR peak-to-average power ratio
  • N is the number of subcarriers within the scheduling bandwidth
  • x(i) is the modulation symbol
  • the modulation methods include quadrature amplitude modulation (QAM) modulation, quadrature phase shift keying (QPSK) ) modulation, ⁇ /2shifted binary phase shift keying ( ⁇ /2-BPSK) modulation, amplitude phase shift keying (APSK) modulation, non-uniform QAM modulation, etc.
  • y(k) is the signal to be mapped on the subcarrier.
  • the functional modules of the communication system provided in this embodiment of the present application are shown in Figure 2, and the operations at the transmitter include source bit generation, coding, QAM modulation, PTRS generation, and mapping/ordering (referring to data before DFT). Mapping of QAM symbols and QAM symbols of PTRS), DFT, RE mapping (DFT-s-OFDM symbols are mapped to designated frequency domain resources); operations at the receiving end include channel equalization (including channel estimation), RE demapping, inverse discrete Fourier transform (inverse discrete fourier transformation, IDFT), PTRS acquisition and phase noise estimation/compensation, QAM demodulation, decoding, etc.
  • the IFFT in Figure 2 refers to the inverse fast Fourier transformation, and the CP in Figure 2 is only one of the examples.
  • -analog-converter digital-to-analog converter PA (power amplifier, power amplifier), LNA (low noise amplifier, low noise amplifier), ADC (analog-to-digital converter, analog-to-digital converter) at least one.
  • IDFT operation is performed on the signals on the subcarriers in the scheduling bandwidth of the same OFDM symbol to restore the transmitted signal.
  • FIG. 3 is a schematic diagram of the power spectral density of phase noise at different frequency points under different phase noise models.
  • the abscissa in Figure 3 is the frequency offset value, and the ordinate is the phase noise power spectral density.
  • the left figure is the schematic diagram of the phase noise power spectral density of the phase noise model 1, and the right figure is the phase noise power spectrum of the phase noise model 2. Density schematic.
  • FIG. 4 is a schematic diagram showing the influence of different levels of phase noise on the received signal in the frequency domain.
  • the left picture is a schematic diagram of the influence of no phase noise on the received signal in the frequency domain
  • the middle picture is a schematic diagram of the influence of weak phase noise on the received signal in the frequency domain
  • the right picture is a schematic diagram of the impact of high phase noise on the received signal in the frequency domain.
  • FIG. 5 is a schematic diagram of a PTRS pattern provided by an embodiment of the present application.
  • the symbol-level time-domain density of the PTRS pattern is L, that is, every L symbol has one symbol mapped to the PTRS; for example, in the symbol mapped with the PTRS, the PTRS group
  • the number is 4, that is, the PTRS-mapped symbol includes 4 PTRS groups; the number of sampling points in the PTRS group is 4, that is, each PTRS group includes 4 PTRS sampling points.
  • the number of PTRS groups and the number of sampling points in the PTRS group shown in FIG. 5 are the PTRS patterns in the case of 4 ⁇ 4 shown in FIG. 6 .
  • a PTRS group consists of one or more continuous PTRS signals, and a PTRS sampling point (sample) may refer to one PTRS signal.
  • FIG. 6 is a schematic diagram of a mapping position of a PTRS pattern according to an embodiment of the present application.
  • the number of all quadrature amplitude modulation (QAM) symbols included in a DFT-s-OFDM is equally divided into N (PTRS group number) gaps;
  • both the network device and the terminal device can determine according to Table 1 that the number of PTRS groups in the PTRS pattern is 4, and the number of PTRS sampling points in the PTRS group is 2.
  • N of PTRS groups The number M of sampling points in each PTRS group N RB0 ⁇ N RB ⁇ N RB1 2 2 N RB1 ⁇ N RB ⁇ N RB2 2 4 N RB2 ⁇ N RB ⁇ N RB3 4 2 N RB3 ⁇ N RB ⁇ N RB4 4 4 N RB4 ⁇ N RB 8 4
  • both the network device and the terminal device determine the specific position of the PTRS in a DFT-s-OFDM symbol according to the rules predefined by the protocol (TS38.211). As shown in Table 2 below:
  • the threshold value range of the high-layer signaling configuration sent by the network device to the terminal device is 1 to 276.
  • there may be the total number of sampling points of PTRS in a DFT-s-OFDM symbol that is, the product of N and M
  • the total number of QAM symbols of PTRS and the number of subcarriers included in the scheduling bandwidth here only represents The ratio of a DFT-s-OFDM symbol
  • the corresponding PTRS at some positions are not unique, for example, a position corresponds to multiple PTRS signals.
  • FIG. 7 is a schematic diagram of mapping different PTRS patterns under different scheduling bandwidths.
  • the DFT-s-OFDM waveform is used as an example, and the scheduling bandwidth is 1 to 3 resource blocks (resource blocks, RBs).
  • the scheduling bandwidth is 1 to 3 resource blocks (resource blocks, RBs).
  • There are multiple PTRS sampling points on the network that is, the corresponding PTRS sampling points on the same location/resource are not unique, and the terminal device and the base station cannot perform the next operation at this time.
  • there will be consecutive PTRS groups that is, there are at least two PTRS groups without locations or resources for mapping data, and at this time
  • the resources used for mapping data in the scheduling bandwidth are far less than the total number of sampling points of PTRS.
  • the problem of less than the total number of sampling points of PTRS, that is, the PTRS overhead is relatively large.
  • the effective number of REs carrying data in the total time-frequency resources on the scheduling bandwidth it is necessary to calculate the effective number of REs carrying data in the total time-frequency resources on the scheduling bandwidth, and then determine the specific TBS according to the number of layers, modulation order, code rate, etc., among which the scheduling bandwidth is the first.
  • the formula for calculating the RE number is:
  • N RE min(156, N' RE ) ⁇ n PRB (2)
  • N' RE is the number of first REs in one RB
  • n PRB is the number of RBs scheduled to the terminal equipment
  • DMRS demodulation reference signal
  • the comprehensive overhead configured for high-level signaling can be configured as 6, 12, and 18. If not, it is configured as 0.
  • 12 is the number of subcarriers in one RB
  • 14 is the number of time-domain symbols in one slot.
  • the number of time domain symbols in the next time slot of different systems will be different, and the specific number of time domain symbols in one time slot is not specifically limited in this application.
  • the integrated overhead is the integrated overhead that considers all non-data channels or reference signals, etc., and is different from the actual overhead. That is, the overhead of PTRS is not considered separately when calculating TBS.
  • the overhead of PTRS is significantly higher than the configured overhead, when the data corresponding to the TBS calculated according to the configuration overhead is mapped to the actual effective resources, the actual code rate will be significantly higher than The code rate indicated by the configured modulation and coding scheme (MCS), or even the actual code rate, may exceed 1, which reduces performance and spectral efficiency.
  • MCS modulation and coding scheme
  • FIG. 8 is an interaction diagram of a process for determining a PTRS pattern according to an embodiment of the present application.
  • the method 200 shown in FIG. 8 includes:
  • Step S220 the network device sends the first scheduling bandwidth threshold information to the terminal device.
  • the terminal device receives the first scheduling bandwidth threshold information from the network device, the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes at least one of the following: based on the first scheduling bandwidth threshold information
  • the mapping positions corresponding to the modulation symbols of different PTRSs in the PTRS pattern determined by the scheduling bandwidth threshold are different; the mapping positions corresponding to the modulation symbols of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold are discontinuous;
  • the ratio of the total number of modulation symbols in the PTRS pattern determined by the scheduling bandwidth threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total number of modulation symbols of the PTRS is the number of PTRS groups and the number of modulation symbols in the PTRS group
  • the product of , the scheduling bandwidth is the minimum scheduling bandwidth corresponding to the determined PT
  • the ratio of the total number of modulation symbols in the PTRS pattern determined based on the first scheduling bandwidth threshold to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold is a condition that the PTRS pattern on an OFDM symbol needs to meet, from the entire From the perspective of scheduling resources, the above condition can also be understood as the ratio of the product of the total number of modulation symbols in the PTRS pattern determined based on the first scheduling bandwidth threshold and the number of symbols to which PTRS is mapped to the total number of REs in the scheduled time-frequency resources less than is equal to the third threshold;
  • the first scheduling bandwidth threshold information may indicate the first scheduling bandwidth threshold, or the first scheduling bandwidth threshold information includes the first scheduling bandwidth threshold.
  • the first scheduling bandwidth threshold information may be carried in higher layer signaling, such as radio resource control (radio resource control, RRC) signaling.
  • radio resource control radio resource control, RRC
  • the first scheduling bandwidth threshold needs to satisfy the first condition, for example, the minimum scheduling bandwidth in each scheduling bandwidth interval defined by the first scheduling bandwidth threshold includes: The number of REs ⁇ the total number of sampling points included in the PTRS pattern corresponding to the scheduling bandwidth interval. which is:
  • N RBi is the scheduling bandwidth threshold of the left inequality in the i+1th row in Table 1
  • N i is the number of PTRS groups corresponding to this i+1 row
  • M i is the number of PTRS sampling points in the PTRS group corresponding to this row
  • a unified first scheduling bandwidth threshold may be directly defined, so that the PTRS patterns corresponding to the maximum number of PTRS sampling points will not overlap.
  • all the first scheduling bandwidth thresholds are greater than or equal to 3.
  • the first scheduling bandwidth threshold needs to satisfy the first condition, such as the minimum scheduling bandwidth in each scheduling bandwidth interval defined by the first scheduling bandwidth threshold.
  • the number of included REs ⁇ the total number of sampling points included in the PTRS pattern corresponding to the scheduling bandwidth interval + the number of PTRS groups-1. which is:
  • a unified first scheduling bandwidth threshold may be directly defined, so that the PTRS patterns corresponding to the maximum number of PTRS sampling points will not overlap or be continuous. For example, all the first scheduling bandwidth thresholds are greater than or equal to 4.
  • the first scheduling bandwidth threshold needs to satisfy the first condition, such as the total number of sampling points included in the PTRS pattern/the number of REs included in the minimum bandwidth ⁇ X, where X is the first a threshold, namely:
  • the minimum value of each first scheduling bandwidth threshold can be determined.
  • the minimum value of the first scheduling bandwidth threshold may be in the capability report of the terminal device, or may be in the high-level signaling configured by the network device to the terminal device. That is, the value range of the second scheduled bandwidth threshold reported by the terminal device and/or the value range of the first scheduled bandwidth threshold configured by the network device to the terminal device satisfies the first condition.
  • the first scheduling bandwidth threshold includes multiple scheduling bandwidth thresholds, such as N RB0 , N RB1 , N RB2 , N RB3 , and N RB4 .
  • each scheduling bandwidth threshold needs to be defined independently, which is illustrated in the RRC signaling format as follows: where n i-min is each scheduling bandwidth threshold N determined by the method Minimum value of RBi .
  • the format of the existing protocol can be used, and the minimum value can be changed.
  • the RRC signaling format is shown as follows: where n min is the minimum value.
  • the minimum value and value range of each scheduling bandwidth threshold when the terminal device capability is reported are not limited.
  • the network device takes the result of max(N RBi-min , N RBi-report ) as the scheduling bandwidth threshold value reported by the terminal device, where N RBi-min is the first determined in at least one of the above three types of situations.
  • each scheduling bandwidth threshold configured by the network device are not limited. Both the network device and the terminal device take the result of max(N RBi-min , N RBi-config ) as the scheduling bandwidth threshold value configured by the network device, and N RBi-config is the value of the scheduling bandwidth threshold configured by the network device in the RRC signaling. value, N RBi-min as above.
  • the method 200 further includes step S210.
  • the terminal device determines a second scheduling bandwidth threshold according to its own capability, and sends second scheduling bandwidth threshold information to the network device, where the second scheduling bandwidth threshold information indicates the second scheduling bandwidth threshold.
  • each scheduling bandwidth threshold in the second scheduling bandwidth threshold satisfies the value range of each scheduling bandwidth threshold in the foregoing first scheduling bandwidth threshold.
  • the terminal device can actively report the second scheduling bandwidth threshold according to its own capabilities, so that the network device can refer to the second scheduling bandwidth threshold when configuring the first scheduling bandwidth threshold.
  • the noise level is relatively poor, a set of smaller scheduling bandwidth thresholds can be reported, which can make the total number of PTRS modulation symbols corresponding to the scheduling bandwidth N RB more, which is greater than or equal to the terminal equipment with higher chip quality or better phase noise level.
  • the reported scheduling bandwidth threshold value corresponds to the total number of PTRS modulation symbols in the same scheduling bandwidth. Thereby, the scheduling bandwidth threshold configured by the network device better matches the performance of the current terminal device.
  • the method 200 further includes step S230: the network device sends scheduling bandwidth information to the terminal device, where the scheduling bandwidth information is used to indicate the bandwidth allocated by the network device to the terminal device.
  • the terminal device may determine the scheduling bandwidth according to the scheduling bandwidth information.
  • the scheduling bandwidth information may be carried in downlink control information (downlink control information, DCI).
  • downlink control information downlink control information, DCI.
  • Step S240 the terminal device determines the PTRS pattern according to the scheduling bandwidth threshold configured by the network device.
  • the terminal device determines a PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the terminal device determines the PTRS pattern corresponding to the scheduling bandwidth in Table 1 according to the first scheduling bandwidth threshold configured by the network device in the high-level signaling, and the first scheduling bandwidth threshold satisfies the first condition.
  • the terminal device takes the result of max(N RBi-min , N RBi-config ) as the scheduling bandwidth threshold in Table 1, and determines the PTRS pattern corresponding to the scheduling bandwidth according to Table 1.
  • N RBi-min is the minimum value of the first scheduling bandwidth threshold N RBi that satisfies the first condition
  • N RBi-config is the value of the scheduling bandwidth threshold configured by the network device in the RRC signaling.
  • the scheduling bandwidth threshold configured by the network device in the RRC signaling may or may not satisfy the first condition, and the scheduling bandwidth threshold is different from the first scheduling bandwidth threshold mentioned above.
  • the terminal device determines, according to the third scheduling bandwidth threshold and the scheduling bandwidth, a first PTRS pattern on one OFDM symbol in the OFDM signal, where the first PTRS pattern satisfies a second condition, and the second condition includes at least the following: Item: the mapping positions corresponding to the modulation symbols of different PTRSs in the first PTRS pattern are different; the mapping positions corresponding to the modulation symbols of the PTRSs of different PTRS groups in the first PTRS pattern are discontinuous; the total modulation in the first PTRS pattern The ratio of the number of symbols to the number of subcarriers in the scheduling bandwidth is less than or equal to a first threshold, the first PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol; wherein, the total number of modulation symbols of the PTRS is The product of the number of PTRS groups and the number of modulation symbols in the PTRS group, the scheduling bandwidth is the bandwidth allocated by the network device to the terminal
  • the terminal device determines the second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, if the second PTRS pattern does not meet the second condition;
  • the PTRS pattern determines a first PTRS pattern on one OFDM symbol in the OFDM signal, the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern, and/or reduce the number of PTRS groups in the second PTRS pattern is obtained from the number of modulation symbols within, optionally, the first PTRS pattern may be one of a set of PTRS patterns.
  • the terminal device determines that the second PTRS pattern does not satisfy the second condition, it selects the patterns in the PTRS pattern set by decreasing orderly until the first PTRS pattern that satisfies the second condition is obtained, or determines that the pattern satisfies the second condition according to the scheduling bandwidth. For the total modulation symbols of the PTRS under the second condition, the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the third scheduling bandwidth threshold may be determined according to an existing protocol, for example, the value range of the third scheduling bandwidth threshold is 1-276.
  • the PTRS pattern set is a set of PTRS patterns corresponding to each scheduling bandwidth interval in the scheduling bandwidth interval determined by the terminal device according to the scheduling bandwidth threshold of the existing protocol, that is, the third scheduling bandwidth threshold.
  • the PTRS pattern set includes five PTRS patterns shown in Table 1, and the PTRS pattern set is ⁇ (2,2);(2,4);(4,2);(4,4);(8,4) ⁇ , the above is only an example, and the present application does not specifically limit the PTRS pattern set.
  • Step S250 the terminal device sends a data transmission OFDM signal to the network device, where the OFDM signal includes PTRS.
  • Step S260 the network device determines the PTRS pattern according to the configured scheduling bandwidth threshold. And according to the received PTRS estimation and compensation, the data demodulation is completed.
  • the network device determines the PTRS pattern according to the configured scheduling bandwidth threshold and scheduling bandwidth.
  • the process in which the network device determines the PTRS pattern according to the scheduling bandwidth threshold and the scheduling bandwidth corresponds to the process in which the terminal device determines the PTRS pattern.
  • the process in step S240 for the terminal device to determine the PTRS pattern according to the scheduling bandwidth threshold and the scheduling bandwidth refer to the process in step S240 for the terminal device to determine the PTRS pattern according to the scheduling bandwidth threshold and the scheduling bandwidth. description, which will not be repeated here.
  • FIG. 9 is a schematic diagram of determining a first resource unit according to an embodiment of the present application.
  • the method 300 shown in FIG. 9 can be used for terminal equipment or network equipment, and the method 300 includes:
  • Step S310 determine the first overhead of the PTRS, the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal equipment and the time domain density of the PTRS, wherein the total number of modulation symbols of the PTRS is: The product of the number of PTRS groups and the number of modulation symbols within the PTRS group.
  • the first overhead of PTRS is the actual overhead of PTRS
  • the first overhead of PTRS satisfies the following formula:
  • L is the time-domain density of PTRS
  • L real is the scheduled
  • the number of symbols mapped with PTRS on each DFT-s-OFDM symbol is the number of DFT-s-OFDM symbols used to carry data in the time domain
  • n PRB is the number of scheduled RBs.
  • Step S320 when the first overhead of the PTRS is greater than or equal to the second threshold, determine the second overhead of the PTRS according to the first overhead of the PTRS.
  • the second threshold may be predefined or preconfigured, and may also be adjusted according to a modulation and coding scheme (modulation and coding scheme, MCS).
  • MCS modulation and coding scheme
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and the quantization interval.
  • Step S330 the terminal device or the network device jointly determines the number of the first resource units for mapping data according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, and the second overhead of the PTRS.
  • the first RE is an effective resource unit that can map data
  • the terminal device or network device is determined according to at least three parameters: the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, and the second overhead of the PTRS.
  • the number of the first REs optionally, in addition to the above three parameters, the terminal device or the network device may also determine the number of the first REs according to other parameters, and the other parameters may be reserved resource configuration, unavailable resource configuration, and the like. This solution does not limit the number of specific parameters for determining the number of first REs by the terminal device or the network device.
  • the terminal device before the terminal device sends the OFDM signal to the network device, if the terminal device determines that the ratio of the number of PTRS sampling points to the number of subcarriers in the scheduling bandwidth exceeds the threshold, the terminal device needs to re-determine the number of sub-carriers used for calculation.
  • the number of the first RE of the TBS (downlink data transmission and so on).
  • the method for determining the number of first REs used to determine the TBS is dynamically adjusted according to the overhead of PTRS. For example, a threshold Y is defined. When the overhead of PTRS is greater than or equal to Y, it is subtracted when determining the number of first REs.
  • the overhead of PTRS which can be the actual overhead of PTRS or the quantized overhead, that is, the first number of REs N′ REs is
  • G is the quantization interval, that is, the second overhead of the PTRS that is calculated by subtracting the number of REs is an integer multiple of G, for example, the value of G may be 3 or 6.
  • the overhead of the PTRS is considered when calculating the TBS, which can avoid the actual code caused when too much data is mapped on the limited resource units. high rate and low spectral efficiency.
  • [ ⁇ ] in the above formula is a rounding function, and the rounding function may be rounding up, rounding down, or rounding, which is not limited in this application. It should also be understood that when the PTRS pattern is not only associated with the scheduling bandwidth, for example, the PTRS pattern is also related to the MCS, or the PTRS pattern is also related to other parameters, the above rules can be deduced by analogy to ensure that the determined PTRS pattern is related to the scheduling of the terminal. The bandwidth satisfies the first condition.
  • DFT-s-OFDM waveforms are used as examples, but the methods provided in this application may also be applicable to CP-OFDM waveforms, which are not limited in this application.
  • the uplink data transmission is used as an example, such as FIG. 8 , but the method for determining the PTRS pattern provided by the present application is also applicable to the transmission of downlink data, and this application does not do this. any restrictions.
  • the signaling transmission process is the same as above, that is, the terminal device reports the scheduling bandwidth threshold according to the capability, the base station configures the scheduling bandwidth threshold, and the base station configures the scheduling bandwidth and other information.
  • the base station determines the PTRS pattern according to the aforementioned rules, it maps the PTRS to OFDM symbols according to the PTRS pattern, and then sends the OFDM symbols to the terminal device; the terminal device determines the PTRS pattern according to the configuration information and the aforementioned rules, and according to the PTRS pattern
  • the pattern demaps the PTRS from the OFDM symbols, and then performs phase noise estimation and compensation, etc.
  • the method 300 for calculating the number of effective resource units for mapping data provided in this application is also applicable to uplink data transmission or downlink data transmission. This application does not make any limitation on this. It should be understood that the sequence of steps in FIG. 8 and FIG. 9 is based on the inherent logic of the method, and the present application does not make any limitation on the sequence of steps in each of the above method embodiments.
  • execution body shown in FIG. 8 and FIG. 9 is only an example, and the execution body may also be a chip, a chip system, or a processor that supports the execution body to implement the methods 200 to 300, which is not described in this application. limit.
  • the methods and operations implemented by network equipment may also be implemented by components (such as chips or circuits) that can be used in network equipment, and the methods and operations implemented by terminal equipment may also be implemented by A component (eg, a chip or circuit) that can be used in an end device is implemented.
  • components such as chips or circuits
  • a component eg, a chip or circuit
  • each network element such as a transmitter device or a receiver device
  • each network element includes hardware structures and/or software modules corresponding to performing each function in order to implement the above functions.
  • Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.
  • FIG. 10 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication device 400 includes a transceiver unit 410 and a processing unit 420 .
  • the transceiver unit 410 can communicate with the outside, and the processing unit 420 is used for data processing.
  • Transceiver unit 410 may also be referred to as a communication interface or a communication unit.
  • the communication apparatus 400 may be a terminal device, wherein the transceiver unit 410 is configured to perform the operation of receiving or sending the terminal device in the above method embodiments, and the processing unit 420 is configured to perform the operation of the internal processing of the terminal device in the above method embodiments .
  • the communication apparatus 400 may further include a storage unit, where the storage unit may be used to store instructions or/or data, and the processing unit 420 may read the instructions or/or data in the storage unit.
  • the storage unit may be used to store instructions or/or data
  • the processing unit 420 may read the instructions or/or data in the storage unit.
  • the transceiver unit 410 is configured to receive first scheduling bandwidth threshold information from a network device, where the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, and the first condition includes at least one of the following Item: mapping positions corresponding to modulation symbols of different PTRSs in the PTRS pattern determined based on the first scheduling bandwidth threshold are different; mapping positions corresponding to modulation symbols of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold are different.
  • the processing unit 420 is configured to determine, according to the scheduling bandwidth threshold, a PTRS pattern on one OFDM symbol in the OFDM signal, where the PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol
  • the transceiver unit 410 is further configured to receive scheduling bandwidth information from the network device, where the scheduling bandwidth information indicates the scheduling bandwidth.
  • the processing unit 420 is further configured to determine a PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth, where the PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol.
  • the transceiver unit 410 is further configured to receive or transmit an OFDM signal, where the OFDM signal includes PTRS.
  • the processing unit 420 is further configured for the terminal device to determine the second scheduling bandwidth threshold according to its own capability; the transceiver unit is further configured to send the second scheduling bandwidth threshold information to the network device, where the second scheduling bandwidth threshold information indicates the second scheduling bandwidth threshold. 2. Scheduling bandwidth threshold.
  • the processing unit 420 is configured to determine, according to the third scheduling bandwidth threshold, a first PTRS pattern on one OFDM symbol in the OFDM signal, where the first PTRS pattern satisfies the second condition, and the first PTRS pattern satisfies the second condition.
  • the two conditions include at least one of the following: the mapping positions corresponding to modulation symbols of different PTRSs in the first PTRS pattern are different; the mapping positions corresponding to modulation symbols of PTRSs of different PTRS groups in the first PTRS pattern are discontinuous; the first PTRS The ratio of the total number of modulation symbols in the pattern to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold, the first PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol; wherein, the total of the PTRS The number of modulation symbols is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group, and the scheduling bandwidth is the bandwidth allocated by the network device to the terminal device.
  • the terminal device determines a PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth.
  • the terminal device may also determine the PTRS pattern according to other parameters, such as MCS threshold, MCS, etc., which is not specifically limited in this application.
  • the transceiver unit 410 is configured to receive or transmit an OFDM signal, where the OFDM signal includes PTRS.
  • the processing unit 420 is further configured to determine a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, if the second PTRS pattern does not meet the second condition;
  • the first PTRS pattern on one OFDM symbol of the optionally, the first PTRS pattern may be one of a set of PTRS patterns.
  • the processing unit 420 determines that the second PTRS pattern does not satisfy the second condition, it selects the patterns in the PTRS pattern set by decreasing orderly until the first PTRS pattern that satisfies the second condition is obtained, or according to the scheduling bandwidth.
  • the total modulation symbols of the PTRS satisfying the second condition are determined, and then the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the processing unit 420 is configured to determine the first overhead of the PTRS, where the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal device, and the symbol-level time-domain density of the PTRS.
  • the processing unit 420 when the first overhead of the PTRS is greater than the second threshold, the processing unit 420 is also used to An overhead determines the second overhead of the PTRS; the processing unit 420 is further configured to determine the number of the first resource elements for mapping data according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, and the second overhead of the PTRS .
  • the number of the first resource units may be determined according to the following relational formula:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • transceiver unit 410 in the terminal device may correspond to the transceiver 620 in the terminal device shown in FIG. 12
  • processing unit 420 in the terminal device may correspond to the terminal device shown in FIG. 12 .
  • the transceiver unit 410 in the terminal device may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the transceiver 620 in the terminal device shown in FIG. 12 , in the terminal device
  • the processing unit 420 may be implemented by at least one processor, for example, may correspond to the processor 610 in the terminal device shown in FIG. 12 , and the processing unit 420 in the terminal device may also be implemented by at least one logic circuit.
  • the terminal device may further include a storage unit, which may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • a storage unit which may be used to store instructions or data
  • the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • FIG. 11 is a schematic block diagram of another communication apparatus provided by an embodiment of the present application.
  • the communication device 500 includes a transceiver unit 510 and a processing unit 520 .
  • the transceiver unit 510 can communicate with the outside, and the processing unit 520 is used for data processing.
  • Transceiver unit 510 may also be referred to as a communication interface or a communication unit.
  • the communication apparatus 500 may be a network device, wherein the transceiver unit 510 is configured to perform the operation of receiving or sending the network device in the above method embodiment, and the processing unit 520 is configured to perform the operation of the internal processing of the network device in the above method embodiment .
  • the communication apparatus 500 may further include a storage unit, where the storage unit may be used to store instructions or/or data, and the processing unit 520 may read the instructions or/or data in the storage unit.
  • the storage unit may be used to store instructions or/or data
  • the processing unit 520 may read the instructions or/or data in the storage unit.
  • the transceiver unit 510 is configured to send first scheduling bandwidth threshold information to the terminal device, where the first scheduling bandwidth threshold indicated by the first scheduling bandwidth threshold information satisfies a first condition, where the first condition includes at least one of the following : the mapping positions corresponding to the modulation symbols of different PTRSs in the PTRS pattern determined based on the first scheduling bandwidth threshold are different; the mapping positions corresponding to the modulation symbols of different PTRS groups in the PTRS pattern determined based on the first scheduling bandwidth threshold are discontinuous ; The ratio of the total modulation symbol number in the PTRS pattern determined based on this scheduling bandwidth threshold and the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; Wherein, the total modulation symbol number of this PTRS is the PTRS group number and the ratio in the PTRS group The product of the number of modulation symbols, the scheduling bandwidth is the minimum scheduling bandwidth corresponding to the determined PTRS pattern.
  • the transceiver unit 510 is further configured to send scheduling bandwidth information to the terminal device, where the scheduling bandwidth information indicates the scheduling bandwidth.
  • the transceiver unit 510 is further configured to receive or transmit an OFDM signal, where the OFDM signal includes PTRS.
  • the processing unit 520 is configured to determine a PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold, where the PTRS pattern includes at least one PTRS group, and each PTRS group includes at least one modulation symbol.
  • the network device determines a PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth. It should be understood that, in addition to the parameter scheduling bandwidth threshold and scheduling bandwidth, the network device may also determine the PTRS pattern according to other parameters, such as MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the transceiver unit 510 before the transceiver unit 510 sends the first scheduling bandwidth threshold information to the terminal equipment, the transceiver unit 510 is further configured to receive second scheduling bandwidth threshold information from the terminal equipment, where the second scheduling bandwidth threshold information indicates the first scheduling bandwidth threshold information. Two scheduling bandwidth thresholds, where the second scheduling bandwidth threshold is determined based on the capability of the terminal device; the processing unit 520 is further configured to determine the first scheduling bandwidth threshold according to the second scheduling bandwidth threshold.
  • the network device when configuring the first scheduling bandwidth threshold, can refer to the second scheduling bandwidth threshold reported by the terminal device based on its own capabilities. For example, when the terminal device reports poor chip quality or poor phase noise level, the same The threshold value of the total number of PTRS modulation symbols corresponding to the scheduling bandwidth. Therefore, the scheduling bandwidth threshold configured by the network device better matches the performance of the current terminal device.
  • the transceiver unit 510 is configured to receive or transmit an OFDM signal, where the OFDM signal includes PTRS; the processing unit 520 is configured to determine one OFDM signal in the OFDM signal according to the third scheduling bandwidth threshold
  • the first PTRS pattern on the symbol, the first PTRS pattern satisfies a second condition, and the second condition includes at least one of the following: the mapping positions corresponding to the modulation symbols of different PTRS in the first PTRS pattern are different; the first PTRS pattern The mapping positions corresponding to the modulation symbols of the PTRS in different PTRS groups are discontinuous; the ratio of the total number of modulation symbols in the first PTRS pattern to the number of subcarriers in the scheduling bandwidth is less than or equal to the first threshold; wherein, the total modulation of the PTRS The number of symbols is the product of the number of PTRS groups and the number of modulation symbols in the PTRS group, and the scheduling bandwidth is the bandwidth allocated by the network device to the terminal device.
  • the network device determines the first PTRS pattern on one OFDM symbol in the OFDM signal according to the scheduling bandwidth threshold and the scheduling bandwidth. It should be understood that, in addition to the parameter scheduling bandwidth threshold and scheduling bandwidth, the network device may also determine the PTRS pattern according to other parameters, such as MCS threshold, MCS, etc., which are not specifically limited in this application.
  • the third scheduling bandwidth threshold can be determined according to the existing protocol.
  • the network device needs to ensure that the PTRS pattern on one OFDM symbol in the OFDM signal satisfies the second condition, so that the network device will not appear ambiguous in behavior when determining the PTRS pattern. It can guarantee the demodulation performance and improve the spectral efficiency.
  • the processing unit 520 is further configured to determine a second PTRS pattern according to the third scheduling bandwidth threshold and the scheduling bandwidth, when the second PTRS pattern does not meet the second condition; the processing unit 520 is further configured to determine the second PTRS pattern according to the The second PTRS pattern determines the first PTRS pattern on one OFDM symbol in the OFDM signal, the first PTRS pattern is to reduce the number of PTRS groups in the second PTRS pattern and/or reduce the number of PTRS groups in the second PTRS pattern Based on the number of modulation symbols in the PTRS group, the first PTRS pattern may be one of the PTRS pattern sets.
  • the processing unit 520 determines that the second PTRS pattern does not satisfy the second condition
  • the patterns in the PTRS pattern set are selected in sequence by decreasing order, until the first PTRS pattern that satisfies the second condition is obtained, or the processing unit
  • the total modulation symbols of the PTRS satisfying the second condition are determined according to the scheduling bandwidth, and then the first PTRS pattern corresponding to the maximum number of PTRS modulation symbols less than or equal to the total modulation symbols is selected.
  • the processing unit 520 is configured to determine the first overhead of the PTRS, where the first overhead of the PTRS is determined based on the total number of modulation symbols of the PTRS, the number of resource blocks scheduled to the terminal device, and the symbol-level time-domain density of the PTRS.
  • the processing unit determines the PTRS according to the first overhead of the PTRS.
  • the second overhead of the PTRS the processing unit is further configured to jointly determine the first resource for mapping the OFDM signal according to the overhead of the demodulation reference signal DMRS, the comprehensive overhead of the high-level signaling configuration, and the second overhead of the PTRS. the number of units.
  • the number of the first resource units may be determined according to the following relational formula:
  • N RE is the number of first resource units, is the number of subcarriers included in a resource block RB, for the overhead of DMRS, Comprehensive overhead configured for higher layer signaling, is the second overhead of the PTRS.
  • the second overhead of the PTRS is the first overhead of the PTRS or the quantization overhead of the PTRS, and the quantization overhead of the PTRS is determined based on the first overhead of the PTRS and a quantization interval.
  • the transceiver unit 510 in the network device may correspond to the transceiver 720 in the network device shown in FIG. 13
  • the processing unit 520 in the network device may correspond to the network device shown in FIG. 13 .
  • the network device may further include a storage unit, where the storage unit may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • the transceiver unit 510 in the network device may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it may correspond to the transceiver 720 in the network device shown in FIG. 13 , the network device
  • the processing unit 520 in the network device may be implemented by at least one processor, for example, may correspond to the processor 710 in the network device shown in FIG. 13 , and the processing unit 520 in the network device may be implemented by at least one logic circuit.
  • an embodiment of the present application further provides a communication apparatus 600 .
  • the communication device 600 includes a processor 610 coupled with a memory 620 for storing computer programs or instructions or and/or data, and the processor 610 for executing the computer programs or instructions and/or data stored in the memory 620 , so that the methods in the above method embodiments are executed.
  • the communication apparatus 600 includes one or more processors 610 .
  • the communication apparatus 600 may further include a memory 620 .
  • the communication device 600 may include one or more memories 620 .
  • the memory 620 may be integrated with the processor 610 or provided separately.
  • the communication apparatus 600 may further include a transceiver 630, and the transceiver 630 is used for signal reception and/or transmission.
  • the processor 610 is used to control the transceiver 630 to receive and/or transmit signals.
  • the communication apparatus 600 is configured to implement the operations performed by the terminal device in the above method embodiments.
  • the processor 610 is configured to implement the processing operations performed by the terminal device in the above method embodiments
  • the transceiver 630 is configured to implement the receiving or sending operations performed by the terminal device in the above method embodiments.
  • the processing unit 420 in the apparatus 400 may be the processor in FIG. 12
  • the transceiver unit 410 may be the transceiver in FIG. 12 .
  • the operations performed by the processor 610 may refer to the description of the processing unit 420 above, and the operations performed by the transceiver 630 may be referred to the description of the transceiver unit 410, which will not be repeated here.
  • an embodiment of the present application further provides a communication apparatus 700 .
  • the communication device 700 includes a processor 710 coupled with a memory 720 for storing computer programs or instructions or and/or data, and the processor 710 for executing the computer programs or instructions and/or data stored in the memory 720 , so that the methods in the above method embodiments are executed.
  • the communication apparatus 700 includes one or more processors 710 .
  • the communication apparatus 700 may further include a memory 720 .
  • the communication device 700 may include one or more memories 720 .
  • the memory 720 may be integrated with the processor 710, or provided separately.
  • the communication apparatus 700 may further include a transceiver 730, and the transceiver 730 is used for signal reception and/or transmission.
  • the processor 710 is used to control the transceiver 730 to receive and/or transmit signals.
  • the communication apparatus 700 is configured to implement the operations performed by the network device in the above method embodiments.
  • the processor 710 is configured to implement the operations performed internally by the network device in the above method embodiments
  • the transceiver 730 is configured to implement the operations performed by the network device in the above method embodiments for receiving or sending.
  • the processing unit 520 in the apparatus 500 may be the processor in FIG. 13
  • the transceiver unit 510 may be the transceiver 730 in FIG. 13 .
  • the operations performed by the processor 710 may refer to the description of the processing unit 520 above, and the operations performed by the transceiver 730 may be referred to the description of the transceiver unit 510, which will not be repeated here.
  • Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions for implementing the method executed by the network device or the terminal device in the foregoing method embodiments are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the network device or the terminal device in the above method embodiments.
  • Embodiments of the present application further provide a computer program product including instructions, which, when executed by a computer, enable the computer to implement the method executed by a network device or a terminal device in the above method embodiments.
  • An embodiment of the present application further provides a communication system, where the communication system includes the network device and the terminal device in the above embodiments.
  • the network device or the terminal device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory).
  • the operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer may include applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program in which the codes of the methods provided by the embodiments of the present application are recorded can be executed to execute the methods according to the embodiments of the present application.
  • the execution body of the method provided by the embodiments of the present application may be a network device or a terminal device, or a functional module in the network device or the terminal device that can call a program and execute the program.
  • Computer readable media may include, but are not limited to, magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs), etc. ), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, stick or key drives, etc.).
  • magnetic storage devices eg, hard disks, floppy disks, or magnetic tapes, etc.
  • optical disks eg, compact discs (CDs), digital versatile discs (DVDs), etc.
  • smart cards and flash memory devices eg, erasable programmable read-only memory (EPROM), cards, stick or key drives, etc.
  • Various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • processors mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM).
  • RAM can be used as an external cache.
  • RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • Direct memory bus random access memory direct rambus RAM, DR RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components
  • the memory storage module
  • memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.
  • the disclosed apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the computer may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer may be a personal computer, a server, or a network device or the like.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media, or semiconductor media (eg, solid state disks (SSDs)), etc.
  • the foregoing usable media may include but not It is limited to: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or CD and other media that can store program codes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种确定相位跟踪参考信号PTRS图案的方法和装置，该方法包括：终端设备接收来自网络设备的第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件为基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；根据该调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案。本申请中网络设备通过给终端设备配置满足第一条件的调度带宽门限，从而保证设备的解调性能，进一步提升频谱效率。

Description

一种确定PTRS图案的方法和装置
本申请要求于2021年04月27日提交中国专利局、申请号为202110460528.7、申请名称为“一种确定PTRS图案的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且，更具体地，涉及确定PTRS图案的方法和装置。
背景技术
高频(6G以上频段，包括28G、39G、60G、73G等)的频段资源丰富，现成为研究和开发的热点。高频的特点是大带宽、高集成天线阵列，从而实现高吞吐量，与此同时也带来了严重的中射频失真问题。例如相位噪声(phase noise，PHN)，中心频率偏移(carrier frequency offset，CFO)、以及多普勒频移，三者均会引入相位误差，导致高频通信系统的性能下降甚至无法工作。
以相位噪声为例，随着频段的增加，相位噪声功率谱密度越高，对接收信号影响越大。也就是说当频段较高时，相噪会恶化，从而导致解调性能变差。因此新空口(new radio，NR)协议中针对循环前缀正交频分复用(cyclic prefix orthogonal frequency division multiplexing，CP-OFDM)波形和离散傅里叶变换扩展的正交频分复用(discrete fourier transformation spread OFDM，DFT-s-OFDM)波形均引入了相位跟踪参考信号(phase tracking reference signal，PTRS)，用于补偿相噪，改善相噪条件下的解调性能。如何在引入PTRS的同时提高频谱效率是本申请研究的问题。
发明内容
本申请提供一种确定PTRS图案的方法和装置。通过配置满足条件的调度带宽门限或者确定满足条件的PTRS图案，从而保证网络设备和终端设备的解调性能，进一步提升频谱效率。
第一方面，提供了一种确定相位跟踪参考信号PTRS图案的方法。该方法可以由终端设备执行，或者，也可以由配置于终端设备中的芯片或电路执行，本申请对此不作限定。该方法包括：终端设备接收来自网络设备的第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽；终端设备根据该调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案， 该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
基于上述方案，终端设备根据第一调度带宽门限所定义的调度带宽区间中每个调度带宽区间对应的PTRS图案在属于该调度带宽区间的最小的调度带宽上满足第一条件，从而使得终端设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，在该终端设备确定一个OFDM符号上的PTRS图案之前，接收来自该网络设备的调度带宽信息，该调度带宽信息指示调度带宽；终端设备根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，终端设备还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第一方面，在第一方面的一种实现方式中，在接收来自网络设备的第一调度带宽门限信息之前，终端设备根据自身能力确定第二调度带宽门限；并向该网络设备发送第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限。
基于上述方案，终端设备根据自身能力主动上报第二调度带宽门限，使得网络设备在配置第一调度带宽门限时可以参考第二调度带宽门限，例如终端设备在芯片质量比较差，或者相噪水平比较恶劣时上报一组较小的调度带宽门限值，可以使得调度带宽N RB对应的PTRS总调制符号数较多，大于或等于芯片质量较高，或者相噪水平较优的终端设备上报的调度带宽门限值在同一个调度带宽下对应的PTRS总调制符号数。从而使得网络设备配置的调度带宽门限更匹配当前终端设备的性能。
第二方面，提供了一种确定相位跟踪参考信号PTRS图案的方法。该方法可以由终端设备执行，或者，也可以由配置于终端设备中的芯片或电路执行，本申请对此不作限定。该方法包括：终端设备根据第三调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，该第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
基于上述方案，第三调度带宽门限可根据现有协议确定，终端设备在确定PTRS图案时需保证OFDM信号中一个OFDM符号上的PTRS图案满足第二条件，从而使得终端设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，终端设备根据该调度带宽门限和该调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，终端设备还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第二方面，在第二方面的一种实现方式中，该终端设备根据该第三调度带宽门限和调度带宽确定第二PTRS图案，若第二PTRS图案不满足所述第二条件；根据该第二PTRS图案确定OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组 内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当终端设备确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
应理解，PTRS图案集合为终端设备根据现有协议的调度带宽门限，也就是第三调度带宽门限确定的调度带宽区间中每个调度带宽区间对应的PTRS图案构成的集合。
第三方面，提供了一种确定资源单元的方法。该方法可以由终端设备执行，或者，也可以由配置于终端设备中的芯片或电路执行，本申请对此不作限定。该方法包括：终端设备确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，根据该PTRS的第一开销确定PTRS的第二开销；该终端设备根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销确定映射数据的第一资源单元的数量。
基于上述方案，当终端设备确定的PTRS的第一开销大于第二阈值时，在计算映射数据的第一资源单元的数量时需考虑PTRS的开销，从而可以避免将数据映射在配置的第一资源单元上时引起的实际码率偏高，译码错误率较高，导致频谱效率低的问题。
应理解，第一资源单元为可以映射数据的有效资源单元，并且终端设备还可以根据解调参考信号DMRS的开销，高层信令配置的综合开销，该PTRS的第二开销和其他参数(例如，预留资源配置、不可用资源配置)来确定第一资源单元的数量，本方案对终端设备确定第一资源单元的具体参数的数量不做限定。
结合第三方面，在第三方面的一种实现方式中，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000001
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000002
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000003
为DMRS的开销，
Figure PCTCN2022086485-appb-000004
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000005
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
第四方面，提供了一种确定相位跟踪参考信号PTRS图案的方法。该方法可以由网络设备执行，或者，也可以由配置于网络设备中的芯片或电路执行，本申请对此不作限定。该方法包括：网络设备向终端设备发送第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽；该网络设备根据该调度带宽门限确定OFDM信号中一个OFDM符号上的PTRS图案，该PTRS图案包括至少 一个PTRS组，每个PTRS组包括至少一个调制符号。
基于上述方案，网络设备可根据第一调度带宽门限所定义的调度带宽区间中每个调度带宽区间对应的PTRS图案在属于该调度带宽区间的最小的调度带宽上满足第一条件，从而使得网络设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，网络设备向该终端设备发送调度带宽信息，该调度带宽信息指示该调度带宽；该网络设备根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，网络设备还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第四方面，在第四方面的一种实现方式中，在该网络设备向终端设备发送第一调度带宽门限信息之前，该网络设备接收来自该终端设备的第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限，该第二调度带宽门限基于该终端设备的能力确定；该网络设备根据该第二调度带宽门限确定该第一调度带宽门限。
基于上述方案，网络设备在配置第一调度带宽门限时可以参考终端设备基于自身能力上报的第二调度带宽门限，例如终端设备在芯片质量比较差，或者相噪水平比较恶劣时上报一组较小的调度带宽门限值，可以使得调度带宽N RB对应的PTRS总调制符号数较多，大于或等于芯片质量较高，或者相噪水平较优的终端设备上报的调度带宽门限值在同一个调度带宽下对应的PTRS总调制符号数。从而使得网络设备配置的调度带宽门限更匹配当前终端设备的性能。
第五方面，提供了一种确定相位跟踪参考信号PTRS图案的方法。该方法可以由网络设备执行，或者，也可以由配置于网络设备中的芯片或电路执行，本申请对此不作限定。该方法包括：网络设备根据第三调度带宽门限确定OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
基于上述方案，第三调度带宽门限可根据现有协议确定，网络设备在确定PTRS图案时需保证OFDM信号中一个OFDM符号上的PTRS图案满足第二条件，从而使得网络设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，网络设备根据该调度带宽门限和该调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，网络设备还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第五方面，在第五方面的一种实现方式中，该网络设备根据该第三调度带宽门限和该调度带宽确定第二PTRS图案，该第二PTRS图案不满足该第二条件；该网络设备根据该第二PTRS图案确定该OFDM信号中的一个OFDM符号上的该第一PTRS图案，该第一PTRS图案为减少该第二PTRS图案中的PTRS组数，和/或减少该第二PTRS图案中 的PTRS组内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当网络设备确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
应理解，PTRS图案集合为网络设备根据现有协议的调度带宽门限，也就是第三调度带宽门限确定的调度带宽区间中每个调度带宽区间对应的PTRS图案构成的集合。
第六方面，提供了一种确定资源单元的方法。该方法可以由网络设备执行，或者，也可以由配置于网络设备中的芯片或电路执行，本申请对此不作限定。该方法包括：网络设备确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，根据该PTRS的第一开销确定PTRS的第二开销；该网络设备根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销确定映射正交频分复用OFDM信号的第一资源单元的数量。
基于上述方案，当网络设备确定的PTRS的第一开销大于第二阈值时，在计算映射数据的第一资源单元的数量时需考虑PTRS的开销，从而可以避免将数据映射在配置的第一资源单元上时引起的实际码率偏高，译码错误率较高，导致频谱效率低的问题。
应理解，第一资源单元为可以映射数据的有效资源单元，并且网络设备还可以根据解调参考信号DMRS的开销，高层信令配置的综合开销，该PTRS的第二开销和其他参数(例如，预留资源配置、不可用资源配置)来确定第一资源单元的数量，本方案对网络设备确定第一资源单元的具体参数的数量不做限定。
结合第六方面，在第六方面的一种实现方式中，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000006
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000007
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000008
为DMRS的开销，
Figure PCTCN2022086485-appb-000009
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000010
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，该PTRS的量化开销基于该PTRS的第一开销和量化间隔确定。
第七方面，提供了一种确定PTRS图案的装置。该装置可以是终端设备，或者，也可以是配置于终端设备中的芯片或电路，本申请对此不作限定。该装置包括收发单元和处理单元：该收发单元用于接收来自网络设备的第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽；该处理单 元用于根据该调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
基于上述方案，终端设备根据第一调度带宽门限所定义的调度带宽区间中每个调度带宽区间对应的PTRS图案在属于该调度带宽区间的最小的调度带宽上满足第一条件，从而使得终端设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，在该终端设备确定一个OFDM符号上的PTRS图案之前，该收发单元还用于接收来自该网络设备的调度带宽信息，该调度带宽信息指示调度带宽；该处理单元还用于根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，该处理单元还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第七方面，在第七方面的一种实现方式中，该处理单元还用于终端设备根据自身能力确定第二调度带宽门限；该收发单元还用于向该网络设备发送第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限。
第八方面，提供了一种确定PTRS图案的装置。该装置可以是终端设备，或者，也可以是配置于终端设备中的芯片或电路，本申请对此不作限定。该装置包括处理单元和收发单元：该处理单元用于根据第三调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，该第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
基于上述方案，第三调度带宽门限可根据现有协议确定，终端设备在确定PTRS图案时需保证OFDM信号中一个OFDM符号上的PTRS图案满足第二条件，从而使得终端设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，该处理单元还用于根据该调度带宽门限和该调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，该处理单元还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第八方面，在第八方面的一种实现方式中，该处理单元还用于根据该第三调度带宽门限和调度带宽确定第二PTRS图案，若第二PTRS图案不满足所述第二条件；根据该第二PTRS图案确定OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当该处理单元确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
应理解，PTRS图案集合为终端设备根据现有协议的调度带宽门限，也就是第三调度带宽门限确定的调度带宽区间中每个调度带宽区间对应的PTRS图案构成的集合。
第九方面，提供了一种确定资源单元的装置。该装置可以是终端设备，或者，也可以是配置于终端设备中的芯片或电路，本申请对此不作限定。该装置包括处理单元：该处理单元用于确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，该处理单元还用于根据该PTRS的第一开销确定PTRS的第二开销；该处理单元还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销确定映射数据的第一资源单元的数量。
基于上述方案，当终端设备确定的PTRS的第一开销大于第二阈值时，在计算映射数据的第一资源单元的数量时需考虑PTRS的开销，从而可以避免将数据映射在配置的有效资源单元上时引起的实际码率偏高，译码错误率较高，导致频谱效率低的问题。
应理解，第一资源单元为可以映射数据的有效资源单元，并且处理单元还可以根据解调参考信号DMRS的开销，高层信令配置的综合开销，该PTRS的第二开销和其他参数来确定第一资源单元的数量，本方案对该处理单元确定第一资源单元的具体参数的数量不做限定。
结合第九方面，在第九方面的一种实现方式中，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000011
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000012
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000013
为DMRS的开销，
Figure PCTCN2022086485-appb-000014
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000015
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
第十方面，提供了一种确定PTRS图案的装置。该装置可以是网络设备，或者，也可以是配置于网络设备中的芯片或电路，本申请对此不作限定。该装置包括收发单元和处理单元：该收发单元用于向终端设备发送第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；该处理单元用于根据该调度带宽门限确定OFDM信号中一个OFDM符号上的PTRS图案，该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
基于上述方案，网络设备可根据第一调度带宽门限所定义的调度带宽区间中每个调度带宽区间对应的PTRS图案在属于该调度带宽区间的最小的调度带宽上满足第一条件，从而使得网络设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，该收发单元还用于向该终端设备发送调度带宽信息，该调度带宽信息指示该调度带宽；该处理单元还用于根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，该处理单元还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第十方面，在第十方面的一种实现方式中，在该收发单元向终端设备发送第一调度带宽门限信息之前，该收发单元还用于接收来自该终端设备的第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限，该第二调度带宽门限基于该终端设备的能力确定；该处理单元还用于根据该第二调度带宽门限确定该第一调度带宽门限。
基于上述方案，网络设备在配置第一调度带宽门限时可以参考终端设备基于自身能力上报的第二调度带宽门限，例如终端设备在芯片质量比较差，或者相噪水平比较恶劣时上报一组较小的调度带宽门限值，可以使得调度带宽对应的PTRS总调制符号数较多，大于或等于芯片质量较高，或者相噪水平较优的终端设备上报的调度带宽门限值在同一个调度带宽下对应的PTRS总调制符号数。从而使得网络设备配置的调度带宽门限更匹配当前终端设备的性能。
第十一方面，提供了一种确定PTRS图案的装置。该装置可以是网络设备，或者，也可以是配置于网络设备中的芯片或电路，本申请对此不作限定。该装置包括收发单元和处理单元：该处理单元用于根据第三调度带宽门限确定该OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
基于上述方案，第三调度带宽门限可根据现有协议确定，网络设备在确定PTRS图案时需保证OFDM信号中一个OFDM符号上的PTRS图案满足第二条件，从而使得网络设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，该处理单元还用于根据该调度带宽门限和该调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，该处理单元还可以根据其他参数确定PTRS图案，例如调制编码策略MCS门限、MCS等，本申请在此不做具体限定。
结合第十一方面，在第十一方面的一种实现方式中，该处理单元还用于根据该第三调度带宽门限和该调度带宽确定第二PTRS图案，当该第二PTRS图案不满足该第二条件；该处理单元还用于根据该第二PTRS图案确定该OFDM信号中的一个OFDM符号上的该第一PTRS图案，该第一PTRS图案为减少该第二PTRS图案中的PTRS组数，和/或减少该第二PTRS图案中的PTRS组内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当该处理单元确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或该处理单元根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的 最大PTRS调制符号数对应的第一PTRS图案。
应理解，PTRS图案集合为网络设备根据现有协议的调度带宽门限，也就是第三调度带宽门限确定的调度带宽区间中每个调度带宽区间对应的PTRS图案构成的集合。
第十二方面，提供了一种确定资源单元的装置。该装置可以是网络设备，或者，也可以是配置于网络设备中的芯片或电路，本申请对此不作限定。该装置包括处理单元：该处理单元用于确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，该处理单元根据该PTRS的第一开销确定PTRS的第二开销；该处理单元还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销确定映射正交频分复用OFDM信号的第一资源单元的数量。
基于上述方案，当网络设备确定的PTRS的第一开销大于第二阈值时，在计算映射数据的有效资源单元的数量时需考虑PTRS的开销，从而可以避免将数据映射在配置的有效资源单元上时引起的实际码率偏高，译码错误率较高，导致频谱效率低的问题。
应理解，第一资源单元为可以映射数据的有效资源单元，并且网络设备还可以根据解调参考信号DMRS的开销，高层信令配置的综合开销，该PTRS的第二开销和其他参数(例如，预留资源配置、不可用资源配置)来确定第一资源单元的数量，本方案对网络设备确定第一资源单元的具体参数的数量不做限定。
结合第十二方面，在第十二方面的一种实现方式中，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000016
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000017
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000018
为DMRS的开销，
Figure PCTCN2022086485-appb-000019
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000020
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，该PTRS的量化开销基于该PTRS的第一开销和量化间隔确定。
第十三方面，提供一种通信装置，该装置可以为上述第一方面至第三方面中任一方面的第一终端设备，或者为配置在第一终端设备中的电子设备，或者为包括第一终端设备的较大设备。该装置用于执行上述第一方面至第三方面中任一方面提供的方法。该装置包括收发器和处理器。
可选地，该装置还包括存储器，该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第一方面至第三方面以及第一方面至第三方面中任一种可能实现方式中的通信方法。可选地，该通信装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该装置为配置于终端设备中的芯片。当该装置为配置于终端设备中的芯片时，该通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
第十四方面，提供一种通信装置，该装置可以为上述第四方面至第六方面中任一方面中的网络设备，或者为配置在网络设备中的电子设备，或者为包括网络设备的较大设备。 该装置用于执行上述第一方面提供的通信方法。该通信装置包括收发器和处理器。
可选地，该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述第四方面至第六方面以及第四方面至第六方面中任一种可能实现方式中的通信方法。可选地，该装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该装置为配置于网络设备中的芯片。当该装置为配置于网络设备中的芯片时，该通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。该处理器也可以体现为处理电路或逻辑电路。
可选地，该收发器可以为收发电路。可选地，所述输入/输出接口可以为输入/输出电路。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是但不限于接收器接收并输入的，输出电路所输出的信号可以是但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十五方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面至第六方面以及第一方面至第六方面中任一种可能实现方式中的方法。
第十六方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面至第六方面以及第一方面至第六方面中任一种可能实现方式中的方法。
第十七方面，提供了一种通信系统，包括上述的网络设备和终端设备。
附图说明
图1是适用于本申请实施例的通信系统100的示意图。
图2是适用于本申请实施例的通信系统功能模块示意图。
图3是不同相噪模型下不同频点相位噪声功率谱密度示意图。
图4是不同水平的相位噪声对频域接收信号的影响示意图。
图5是本申请实施例提供的一种PTRS图案示意图。
图6是本申请实施例提供的一种PTRS图案的映射位置示意图。
图7是本申请实施例提供的不同调度带宽下映射不同PTRS图案的示意图。
图8是本申请实施例提供的一种确定PTRS图案的流程交互图。
图9是本申请实施例提供的一种确定第一资源单元的示意图。
图10是本申请实施例提供的一种通信装置的示意性框图。
图11是本申请实施例提供的另一种通信装置的示意性框图。
图12是本申请实施例提供的一种通信装置的结构示意图。
图13是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1是适用于本申请实施例的通信系统100的示意图。
如图1所示，该通信系统100包括至少一个网络设备和至少一个终端设备。终端设备与网络设备之间、终端设备与终端设备之间可以建立连接，进行通信，发送设备可以通过控制信息指示数据的调度信息，以便接收设备根据控制信息正确地接收数据。
可选地，该通信系统100包括多个终端设备。例如D2D通信中，被调度节点是终端设备，调度节点也可以是终端设备。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请的实施例中的终端可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端或者未来演进网络中的终端等。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备。IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请对于终端设备的具体形式不作限定。
应理解，本申请实施例中，终端设备可以是用于实现终端设备功能的装置，也可以是能够支持终端设备实现该功能的装置，例如芯片系统，该装置可以被安装在终端中。本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
本申请实施例中的网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(Radio Network Controller，RNC)、节点B(Node B，NB)、基站控制器(Base Station Controller，BSC)、基站收发台(Base Transceiver Station，BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)、基带单元(Base Band Unit，BBU)，无线保真(Wireless Fidelity，WIFI)系统中的接入点(Access Point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包 括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。基站设备还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，还可以是可穿戴设备或车载设备。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，简称AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
应理解，本申请实施例中，网络设备可以是用于实现网络设备功能的装置，也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system formobile communications，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(freq终端ncy division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)系统或未来演进的通信系统，车到其它设备(vehicle-to-X V2X)，其中V2X可以包括车到互联网(vehicle to network，V2N)、车到车(vehicle to vehicle，V2V)、车到基础设施(vehicle to infrastructure，V2I)、车到行人(vehicle to pedestrian，V2P)等、车间通信长期演进技术(long term evolution-vehicle，LTE-V)、车联网、机器类通信(machine type communication，MTC)、物联网(Internet of things，IoT)、机器间通信长期演进技术(long term evolution-machine，LTE-M)，机器到机器(machine to machine，M2M)，设备到设备(device to device，D2D)等。
本申请具体可适用于以下场景：包括但不限于多站点传输(同一个UE同时与多个传输点间传输信号)、回传、无线宽带到户(wireless to the x，WTTx)、增强移动宽带(enhanced mobile broadband，eMBB)、设备到设备(device to device，D2D)等对定时要求较高或传输速率要求较高的场景。本申请不限制波形，可应用于基于CP-OFDM或DFT-s-OFDM的系统。
图2是本申请实施例提供的通信系统功能模块示意图。
在新空口(new radio,NR)的协议中，除了有循环前缀正交频分复用(cyclic prefix-orthogonal frequency division multiplexing，CP-OFDM)波形以外，上行还支持离散傅里叶变 换扩展的正交频分复用波形(discrete fourier transformation-spread-OFDM,DFT-s-OFDM)(继承于LTE)，该波形相比CP-OFDM具有峰均功率比(peak-to-average power ratio，PAPR)低的特点，其调制好的数据排列完成后，映射在资源单元前需先做DFT变化，即：
Figure PCTCN2022086485-appb-000021
其中：N为调度带宽内的子载波个数，x(i)为调制符号，调制方法包括正交幅度调制(quadrature amplitude modulation，QAM)调制、正交相移键控(quadrature phase shift keying，QPSK)调制，π/2相移的二相移项键控(π/2shifted binary phase shift keying，π/2-BPSK)调制，幅度相移键控(amplitude phase shift keying，APSK)调制，非均匀QAM调制等；y(k)为待映射在子载波上的信号。
当波形为DFT-s-OFDM时，本申请实施例提供的通信系统功能模块如图2所示，发射端的操作包括源比特生成、编码、QAM调制、PTRS生成、映射/排序(指DFT前数据QAM符号和PTRS的QAM符号的映射)、DFT、RE映射(DFT-s-OFDM符号映射至指定的频域资源上)；接收端的操作包括信道均衡(包含信道估计)、RE解映射、逆离散傅里叶变换(inverse discrete fourier transformation，IDFT)、PTRS获取与相噪估计/补偿、QAM解调、译码等。
图2中的IFFT指逆快速傅立叶变换(inverse fast fourier transformation)，图2中的CP仅作为其中一种示例，还可以包括频域频谱成型，串并转换、并串转换、DAC(digital-to-analog-converter数字模拟转换器)、PA(power amplifier,功率放大器)、LNA(low noise amplifier,低噪放)、ADC(analog-to-digital converter,模拟数字转换器)中的至少一种。
在接收端，当在频域完成信号均衡之后，会对同一个OFDM符号上调度带宽上的子载波上的信号做IDFT操作，以恢复发射信号。
当波形为CP-OFDM时，即没有图2中发射端的DFT操作和接收端的IDFT操作。
图3是不同相噪模型下不同频点相位噪声功率谱密度示意图。
图3中的横坐标为频率偏移值，纵坐标为相噪功率谱密度，其中，左图为相噪模型1的相位噪声功率谱密度示意图，右图为相噪模型2的相位噪声功率谱密度示意图。
图4是不同水平的相位噪声对频域接收信号的影响示意图。
图4中，左图为无相噪对频域接收信号的影响示意图，中图为弱相噪对频域接收信号的影响示意图，右图为高相噪对频域接收信号的影响示意图。
由图3和图4可知，频段升高，会导致相噪的恶化，从而解调性能变差。现有NR协议中针对CP-OFDM波形和DFT-s-OFDM波形均引入了PTRS，以补偿相噪带来的影响，从而改善有相噪时解调性能。
图5为本申请实施例提供的一种PTRS图案示意图。
以DFT-s-OFDM波形举例来说，如图5所示，PTRS图案的符号级时域密度为L，即每L个符号有一个符号映射PTRS；例如，映射有PTRS的符号内，PTRS组数为4，即映射PTRS的符号中包括4个PTRS组；PTRS组内采样点数量为4，即每个PTRS组中包括4个PTRS采样点。图5示意的PTRS的组数和PTRS组内的采样点数为图6中示出的4×4情况下的PTRS图案。
本申请实施例中，PTRS组：由1个或以上连续的PTRS信号组成，PTRS采样点(sample) 可以是指一个PTRS信号。
图6为本申请实施例提供的一种PTRS图案的映射位置示意图。
网络设备确定PTRS在一个DFT-s-OFDM符号内的具体位置的具体的步骤包括：
(1)将一个DFT-s-OFDM所包含的所有正交幅度调制(quadrature amplitude modulation,QAM)符号的数量(即子载波数量，表中所示的
Figure PCTCN2022086485-appb-000022
)等分为N(PTRS组数)个间隙；
(2)图6示出了对于不同采样点数目，PTRS组的具体映射位置。例如，若PTRS图案为N×M＝4×2，此时PTRS组内的采样点数M为2，每个间隙的中间映射一个PTRS组；若PTRS图案为N×M＝4×4，此时PTRS组内的采样点数M为4，则第一个PTRS组映射在第一个间隙的头部，最后一个PTRS组的映射在最后一个间隙的尾部，其他PTRS组映射在间隙的中间。
DFT-s-OFDM的PTRS图案由调度带宽确定，如下表1所示，其中N RBi(i＝0，1，2，3，4)为门限值，可由网络设备通过高层信令配置给终端设备，在后续数据的传输过程中，基站和终端设备均根据当前的网络设备配置给终端设备的调度带宽和表1确定当前数据传输中具体的PTRS图案参数。例如，网络设备配置的调度带宽N RB满足条件N RB2≤N RB＜N RB3时，则网络设备和终端设备均可根据表1确定PTRS图案中的PTRS组数为4，PTRS组内PTRS采样点数为2。
表1 PTRS图案与调度带宽的关系
调度带宽 PTRS组的数量N 每个PTRS组内采样点的数量M
N RB0≤N RB＜N RB1 2 2
N RB1≤N RB＜N RB2 2 4
N RB2≤N RB＜N RB3 4 2
N RB3≤N RB＜N RB4 4 4
N RB4≤N RB 8 4
当PTRS组数，PTRS组内PTRS采样点数这两个参数确定后，网络设备和终端设备均根据协议(TS38.211)预定义的规则确定PTRS在一个DFT-s-OFDM符号内的具体位置，如下表2所示：
表2 PTRS符号映射表
Figure PCTCN2022086485-appb-000023
Figure PCTCN2022086485-appb-000024
协议TS38.331中，网络设备给终端设备发送的高层信令配置的门限取值范围为1～276。在实际情况中可能会出现一个DFT-s-OFDM符号内的PTRS的总采样点数(即N与M的乘积)或PTRS的总QAM符号数与调度带宽中包含的子载波数(此处仅表示一个DFT-s-OFDM符号)的比值较大甚至超过1的问题，此时存在部分位置上的对应的PTRS不唯一的现象，比如一个位置对应多个PTRS信号。
图7是不同调度带宽下映射不同PTRS图案的示意图。
图7中以DFT-s-OFDM波形，调度带宽为1～3个资源块(resource block,RB)举例，如图7所示，当一个RB内的PTRS图案为(N,M)＝(4,4)或(N,M)＝(8,4)或2个RB内的PTRS图案为(N,M)＝(8,4)时，PTRS组间将出现重叠，或同一个位置/资源上存在多个PTRS采样点，即同一个位置/资源上对应的PTRS采样点不唯一，此时终端设备和基站无法进行下一步操作。另外此时调度带宽内没有剩余用于映射数据的位置或资源。
当3个RB内的PTRS图案为(N,M)＝(8,4)时，将出现连续的PTRS组，即存在至少两个PTRS组间没有用于映射数据的位置或资源，并且此时调度带宽内用于映射数据的资源远小于PTRS的总采样点数，1个RB内的PTRS图案为(N,M)＝(4,2)时，也存在调度带宽内用于映射数据的资源远小于PTRS的总采样点数的问题，即PTRS开销较大。
协议TS38.214中计算TBS前需先计算调度带宽上时频总资源内承载数据的有效RE数，然后根据层数、调制阶数、码率、等确定具体的TBS，其中调度带宽上第一RE数计算公式为：
N RE＝min(156，N′ RE)·n PRB    (2)
Figure PCTCN2022086485-appb-000025
其中，N′ RE为一个RB内第一RE数量，n PRB为调度给终端设备的RB数量，
Figure PCTCN2022086485-appb-000026
为一个RB内包括的子载波数量，可取值为12，
Figure PCTCN2022086485-appb-000027
是时域上用于承载数据的DFT-s-OFDM符号数，
Figure PCTCN2022086485-appb-000028
为解调参考信号(demodulation reference signal,DMRS)在一个RB内占用的RE数，
Figure PCTCN2022086485-appb-000029
为高层信令配置的综合开销，可配置为6,12,18，若没有，则配置为0。
应理解，一个RB内时频域的总资源可以是12*14＝168，其中12为一个RB内的子载波的数量，14为一个时隙内的时域符号数量。当然不同系统下一个时隙内的时域符号数量会有所不同，本申请对一个时隙内的时域符号的具体数量不做具体限定。
综合开销是考虑所有非数据的信道或参考信号等的综合开销，与实际开销有区别。即 在计算TBS时不单独考虑PTRS的开销，当PTRS的开销明显高于配置的开销时，按配置开销计算的TBS对应的数据映射到实际有效的资源上时，会导致实际码率明显高于配置的调制编码方案(modulation and coding scheme,MCS)指示的码率，甚至实际码率可能会超过1，使得性能下降，频谱效率降低。
图8为本申请实施例提供的一种确定PTRS图案的流程交互图。图8所示的方法200包括：
步骤S220，网络设备发送第一调度带宽门限信息给终端设备。对应地，终端设备接收来自网络设备的第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽。
应理解，基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值是一个OFDM符号上的PTRS图案需要满足的条件，从整个调度资源的角度，上一条件还可以理解为基于第一调度带宽门限确定的PTRS图案中的总调制符号数和映射PTRS的符号数的乘积与调度的时频资源内的总RE数的比值小于等于第三阈值；
可选地，第一调度带宽门限信息可指示第一调度带宽门限，或第一调度带宽门限信息包括该第一调度带宽门限。第一调度带宽门限信息可承载于高层信令中，例如无线资源控制(radio resource control,RRC)信令。
以DFT-s-OFDM波形举例：
1)若要满足PTRS图案中不同PTRS组的PTRS调制符号对应的映射位置不同：需要求第一调度带宽门限满足第一条件，例如第一调度带宽门限定义的各调度带宽区间内最小调度带宽包含的RE数≥该调度带宽区间对应的PTRS图案包括的总采样点数。即：
Figure PCTCN2022086485-appb-000030
其中，N RBi为表1中第i+1行的左不等式的调度带宽门限，N i为该i+1行对应的PTRS组数，M i为该行对应的PTRS组内的PTRS采样点数，i＝0,1,2,3,4，
Figure PCTCN2022086485-appb-000031
为一个RB内包括的子载波数，可取值为12。
以表1中定义的N i和M i的取值为例，则有：
N RB0≥1；N RB1≥1；N RB2≥1；N RB3≥2；N RB4≥3
可选地，可以不单独定义各第一调度带宽门限的最小取值，直接定义一个统一的第一调度带宽门限值，使得最多的PTRS采样点数对应的PTRS图案也不会重叠。例如，所有的第一调度带宽门限值都大于等于3。
2)若要满足PTRS图案中不同PTRS组的PTRS调制符号对应的映射位置不连续：需要求第一调度带宽门限满足第一条件，如第一调度带宽门限定义的各调度带宽区间内最小调度带宽包含的RE数≥该调度带宽区间对应的PTRS图案包括的总采样点数+PTRS组数-1。即：
Figure PCTCN2022086485-appb-000032
以表1中定义的N i和M i的取值为例，则有：
N RB0≥1；N RB1≥1；N RB2≥1；N RB3≥2；N RB4≥4
可选地，可以不单独定义各第一调度带宽门限的最小取值，直接定义一个统一的第一调度带宽门限值，使得最多的PTRS采样点数对应的PTRS图案也不会重叠或连续。例如，所有的第一调度带宽门限值都大于等于4。
3)若要满足PTRS图案中的总调制符号数与该调度带宽内的子载波数的比值小于等于第一阈值或者PTRS图案中的总调制符号数和映射PTRS的符号数的乘积与调度的时频资源内的总RE数的比值小于或等于第三阈值：需要求第一调度带宽门限满足第一条件，如PTRS图案包括的总采样点数/最小带宽包含的RE数≤X，其中X为第一阈值，即：
Figure PCTCN2022086485-appb-000033
以表1中定义的Ni和Mi的取值为例：
当X取值为1/12时则有：
N RB0≥4；N RB1≥8；N RB2≥8；N RB3≥16；N RB4≥32
当X取值为1/24时则有：
N RB0≥8；N RB1≥16；N RB2≥16；N RB3≥32；N RB4≥64
当X取值为10/100时则有：
N RB0≥4；N RB1≥7；N RB2≥7；N RB3≥14；N RB4≥27
当X取值为6/100时则有：
N RB0≥6；N RB1≥12；N RB2≥12；N RB3≥23；N RB4≥45
根据上述三类情况，可以确定出各第一调度带宽门限的最小取值。
可选地，第一调度带宽门限的最小取值可以在终端设备能力上报中，也可以在网络设备配置给终端设备的高层信令中。即，终端设备上报的第二调度带宽门限取值范围和/或网络设备配置给终端设备的第一调度带宽门限取值范围满足第一条件。
应理解，第一调度带宽门限包括多个调度带宽门限，例如N RB0，N RB1，N RB2，N RB3，N RB4。
若第一调度带宽门限的最小取值不同，则每个调度带宽门限的取值范围需独立定义，以RRC信令格式示意如下：其中n i-min为所述方法确定的各调度带宽门限N RBi的最小值。
Figure PCTCN2022086485-appb-000034
若第一调度带宽门限的最小取值相同，则可沿用现有协议的格式，改最小值即可，以RRC信令格式示意如下：其中n min为该最小取值。
Figure PCTCN2022086485-appb-000035
Figure PCTCN2022086485-appb-000036
可选地，不限制终端设备能力上报时各调度带宽门限的最小取值以及取值范围。网络设备将max(N RBi-min，N RBi-report)的结果作为终端设备上报的调度带宽门限值，其中N RBi-min为满足上述三类情况中的至少一种情况中所确定的第一调度带宽门限N RBi的最小值，N RBi-report为终端设备作为能力上报的调度带宽门限N RBi的值。
可选地，不限制网络设备配置的各调度带宽门限的最小取值以及取值范围。网络设备和终端设备均将max(N RBi-min，N RBi-config)的结果作为网络设备配置的调度带宽门限值，N RBi-config为网络设备在RRC信令配置的调度带宽门限的取值，N RBi-min同上所述。
可选地，方法200还包括步骤S210，终端设备根据自身能力确定第二调度带宽门限，并向网络设备发送第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限。
可选地，第二调度带宽门限中的各调度带宽门限满足上述第一调度带宽门限中的各调度带宽门限的取值范围。
应理解，该方案中终端设备可根据自身能力主动上报第二调度带宽门限，使得网络设备在配置第一调度带宽门限时可以参考第二调度带宽门限，例如终端设备在芯片质量比较差，或者相噪水平比较恶劣时上报一组较小的调度带宽门限值，可以使得调度带宽N RB对应的PTRS总调制符号数较多，大于或等于芯片质量较高，或者相噪水平较优的终端设备上报的调度带宽门限值在同一个调度带宽下对应的PTRS总调制符号数。从而使得网络设备配置的调度带宽门限更匹配当前终端设备的性能。
可选地，方法200还包括步骤S230，网络设备向终端设备发送调度带宽信息，该调度带宽信息用于指示网络设备分配给终端设备的带宽。对应的，终端设备可根据该调度带宽信息确定调度带宽。
可选地，该调度带宽信息可承载于下行控制信息(downlink control information，DCI)中。
步骤S240，终端设备根据网络设备配置的调度带宽门限确定PTRS图案。
可选地，终端设备根据该调度带宽门限和调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
一种可实现方式中，终端设备根据网络设备在高层信令中配置的第一调度带宽门限在表1中确定该调度带宽对应的PTRS图案，第一调度带宽门限满足第一条件。
另一种可实现方式中，终端设备将max(N RBi-min，N RBi-config)的结果作为表1中的调度带宽门限，并根据表1确定该调度带宽对应的PTRS图案。其中N RBi-min为满足第一条件的第一调度带宽门限N RBi的最小值，N RBi-config为网络设备在RRC信令配置的调度带宽门限的取值。
应理解，此方案中网络设备在RRC信令配置的调度带宽门限可以满足第一条件，也可以不满足第一条件，该调度带宽门限区别于上文提及的第一调度带宽门限。
再一种可实现方式中，终端设备根据第三调度带宽门限和调度带宽确定OFDM信号 中一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与该调度带宽内的子载波数的比值小于等于第一阈值，该第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
可选地，在终端设备确定第一PTRS图案前，该终端设备根据该第三调度带宽门限和调度带宽确定第二PTRS图案，若第二PTRS图案不满足所述第二条件；根据该第二PTRS图案确定OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当终端设备确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
可选地，第三调度带宽门限可根据现有协议确定，例如第三调度带宽门限的取值范围为1～276。
应理解，PTRS图案集合为终端设备根据现有协议的调度带宽门限，也就是第三调度带宽门限确定的调度带宽区间中每个调度带宽区间对应的PTRS图案构成的集合。例如PTRS图案集合包括表1示出的五种PTRS图案，PTRS图案集合为{(2，2)；(2,4)；(4,2)；(4,4)；(8,4)}，上述仅为示例，本申请对PTRS图案集合不做具体限定。
以DFT-s-OFDM波形举例：
当终端设备根据第三调度带宽门限和调度带宽以及表1确定的第二PTRS图案不满足第二条件。
例如，若按表1确定的PTRS图案配置为(N,M)＝(8,4)时，出现以下中的至少一项：第二PTRS图案中不同PTRS的调制符号对应的时频资源相同；该第二PTRS图案中不同PTRS组的PTRS的调制符号对应的时频资源连续；该第二PTRS图案中的总调制符号数与该调度带宽内的子载波数的比值大于第一阈值。
可根据第二PTRS图案确定第一PTRS图案，例如，依次选择新的PTRS图案，如(N,M)＝(4,4)，(4,2)，或(2,2)，甚至不发送PTRS，直至新的PTRS图案满足第二条件，此时第一个满足条件的新PTRS图案为第一PTRS图案。若按表1确定的第二PTRS图案配置为(N,M)＝(4,4)时，可确定第一PTRS图案为(N,M)＝(4,2)或(2,2)，甚至不发送PTRS，直至第一PTRS图案满足第二条件。其他可以此类推。
再例如，以调度带宽(N RB)为24个RB，N RB4＝20，该第一阈值为1/12举例，若按表1可知，第二PTRS图案应该为(N,M)＝(8,4)，则PTRS总采样点数与调度带宽内的子载波数的比值为32/(24×12)，大于1/12，因此需将第二PTRS图案调整为(N,M)＝(4,4)，此时PTRS总采样点数与调度带宽内的子载波数的比值为16/(24×12)，小于1/12，即满足PTRS采样点数与调度带宽内的子载波数的比值不超过阈值这一条件。或者根据第一阈值和调度带宽确定满足条件的PTRS总采样点数为24，然后从表格中选出总采样点数小于等于24的第 一个PTRS图案，即(N,M)＝(4,4)作为第一PTRS图案。
步骤S250，终端设备向网络设备发送数据发送OFDM信号，该OFDM信号包括PTRS。
步骤S260，网络设备根据配置的调度带宽门限确定PTRS图案。并根据接收到的PTRS估计相躁并补偿，完成数据解调。
可选地，网络设备根据配置的调度带宽门限和调度带宽确定PTRS图案。
应理解，网络设备根据调度带宽门限和调度带宽确定PTRS图案的过程与终端设备确定PTRS图案的过程相对应，详细过程可参考步骤S240中对终端设备根据调度带宽门限和调度带宽确定PTRS图案的过程的描述，在此不做赘述。
还应理解，除参数调度带宽门限和调度带宽之外，终端设备和网络设备还可根据其他参数确定PTRS图案，例如调制编码策略(modulation and coding scheme，MCS)门限、MCS等，本申请在此不做具体限定。图9为本申请实施例提供的一种确定第一资源单元的示意图。图9所示的方法300可用于终端设备或网络设备，该方法300包括：
步骤S310，确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积。
以DFT-s-OFDM波形举例：
可选地，PTRS的第一开销
Figure PCTCN2022086485-appb-000037
为PTRS的实际开销，PTRS的第一开销满足下列公式：
Figure PCTCN2022086485-appb-000038
其中，L为PTRS的时域密度，L＝1表示每1个DFT-s-OFDM符号都映射PTRS，L＝2表示每两个DFT-s-OFDM符号中有一个DFT-s-OFDM符号上映射PTRS，以此类推。
若考虑实际的时域密度，PTRS的第一开销
Figure PCTCN2022086485-appb-000039
还可以满足以下公式：
Figure PCTCN2022086485-appb-000040
其中，L real为调度的
Figure PCTCN2022086485-appb-000041
个DFT-s-OFDM符号上映射有PTRS的符号数，
Figure PCTCN2022086485-appb-000042
为时域上用于承载数据的DFT-s-OFDM符号数，n PRB为调度的RB数量。
步骤S320，当该PTRS的第一开销大于或等于第二阈值时，根据该PTRS的第一开销确定PTRS的第二开销。
应理解，该第二阈值可以是预定义或预配置的，还可以根据调制编码方案(modulation and coding scheme，MCS)调整。当PTRS的第一开销小于第二阈值，计算映射数据的有效资源单元的数量不考虑PTRS的开销，PTRS的开销不会使得实际码率对应的等效MCS索引与配置的MCS索引之差大于或等于Z，Z的取值可以为1或者2。也就是说，可根据Z反向确定第二阈值。
可选地，该PTRS的第二开销为PTRS的第一开销或PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
步骤S330，终端设备或网络设备根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销共同确定映射数据的第一资源单元的数量。
应理解，第一RE为可以映射数据的有效资源单元，并且终端设备或网络设备至少根据解调参考信号DMRS的开销，高层信令配置的综合开销和该PTRS的第二开销这三个参数确定第一RE数量，可选地，除上述三个参数外，终端设备或网络设备还可以根据其他 参数来确定第一RE的数量，其他参数可以是预留资源配置，不可用资源配置等。本方案对终端设备或网络设备确定第一RE数量的具体参数的数量不做限定。
可选地，上行数据传输过程中，在终端设备向网络设备发送OFDM信号前，若终端设备判断PTRS采样点数与调度带宽内的子载波数的比值超过阈值时，终端设备需重新确定用于计算TBS的第一RE的数量(下行数据传输以此类推)。
应理解，若在确定第一RE数时未单独考虑PTRS的开销，且PTRS的开销明显大于网络设备配置的开销
Figure PCTCN2022086485-appb-000043
时，导致实际传输码率大于网络设备配置的MCS所指示的码率。因此本实施例则根据PTRS的开销，动态调整计算用于确定TBS的第一RE数量的确定方法，如定义门限Y，当PTRS的开销大于或等于Y时，在确定第一RE数时减去PTRS的开销，该开销可以是PTRS的实际开销，也可以是量化的开销，即第一RE数量N′ RE为
Figure PCTCN2022086485-appb-000044
其中，
Figure PCTCN2022086485-appb-000045
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000046
为DMRS的开销，
Figure PCTCN2022086485-appb-000047
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000048
为该PTRS的第二开销。
可选地，
Figure PCTCN2022086485-appb-000049
可以为PTRS的实际开销，也就是PTRS的第一开销，PTRS的第一开销可根据公式(7)或公式(8)计算。
可选地，
Figure PCTCN2022086485-appb-000050
也可以为PTRS的量化开销，此时
Figure PCTCN2022086485-appb-000051
的计算如公式(10)：
Figure PCTCN2022086485-appb-000052
其中，G为量化间隔，即计算RE数量是减去的PTRS的第二开销为G的整数倍，如G的取值可以为3，或6。
同理，若考虑实际的时域密度，上式(10)还可以为：
Figure PCTCN2022086485-appb-000053
基于上述方案，当终端设备确定的PTRS的第一开销大于或等于第二阈值时，在计算TBS时考虑PTRS的开销，可以避免将过多的数据映射在有限的资源单元上时引起的实际码率偏高，频谱效率低的问题。
应理解，上述公式中的[·]为取整函数，该取整函数可以是向上取整或向下取整或四舍五入取整，本申请对此不作任何限制。还应理解，当PTRS图案不仅与调度带宽关联时，如PTRS图案还与MCS有关，或者PTRS图案还与其他参数有关，上述规则可以以此类推，用于保证所确定的PTRS图案与终端的调度带宽满足第一条件。
应理解，上文在描述实施例提供的方法时，都是以DFT-s-OFDM波形示例，但本申请提供的方法还可适用于CP-OFDM波形，本申请对此不做任何限定。并且，上文在进行描述本申请提供的方法200时，以上行数据传输作为举例，例如图8，但本申请提供的确定PTRS图案的方法还适用于下行数据的传输，本申请对此不做任何限制。
还应理解，当上文所述方法应用于下行时，信令的传输过程与上文相同，即终端设备以能力上报调度带宽门限，基站配置调度带宽门限，且基站配置调度带宽等信息。不同的地方为基站根据前文所述规则确定PTRS图案后，按照PTRS图案将PTRS映射至OFDM符号，然后发送OFDM符号至终端设备；终端设备根据配置信息和前文所述规则确定PTRS图案，并按照PTRS图案从OFDM符号中解映射PTRS，然后完成相噪估计与补偿等。
还应理解，本申请提供的计算映射数据的有效资源单元的数量的方法300同样可适用 于在上行数据传输或者下行数据传输。本申请对此不做任何限定。应理解，图8和图9中各步骤的先后顺序依据该方法的内在逻辑，本申请对上述每个方法实施例中步骤的先后顺序不做任何限定。
需注意的是，图8和图9中示意的执行主体仅为示例，该执行主体也可以是支持该执行主体实现方法200～方法300的芯片、芯片系统、或处理器，本申请对此不作限制。
上文结合附图描述了本申请实施例的方法实施例，下面描述本申请实施例的装置实施例。可以理解，方法实施例的描述与装置实施例的描述可以相互对应，因此，未描述的部分可以参见前面方法实施例。
可以理解的是，上述各个方法实施例中，由网络设备实现的方法和操作，也可以由可用于网络设备的部件(例如芯片或者电路)实现，由终端设备实现的方法和操作，也可以由可用于终端设备的部件(例如芯片或者电路)实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
图10是本申请实施例提供的通信装置的示意性框图。该通信装置400包括收发单元410和处理单元420。收发单元410可以与外部进行通信，处理单元420用于进行数据处理。收发单元410还可以称为通信接口或通信单元。
该通信装置400可以为终端设备，其中，收发单元410用于执行上文方法实施例中终端设备的接收或发送的操作，处理单元420用于执行上文方法实施例中终端设备内部处理的操作。
可选地，该通信装置400还可以包括存储单元，该存储单元可以用于存储指令或者和/或数据，处理单元420可以读取存储单元中的指令或者和/或数据。
在一种设计中，收发单元410用于接收来自网络设备的第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽。处理单元420用于根据该调度带宽门限确定正交频分复用OFDM信号中一个OFDM 符号上的PTRS图案，该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号
可选地，收发单元410还用于接收来自该网络设备的调度带宽信息，该调度带宽信息指示调度带宽。
可选地，处理单元420还用于根据该调度带宽门限和调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
收发单元410还用于接收或发送OFDM信号，该OFDM信号包括PTRS。
可选地，该处理单元420还用于终端设备根据自身能力确定第二调度带宽门限；该收发单元还用于向该网络设备发送第二调度带宽门限信息，该第二调度带宽门限信息指示第二调度带宽门限。
在另一种设计中，处理单元420用于根据第三调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，该第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
可选地，终端设备根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。
应理解，除参数调度带宽门限和调度带宽之外，终端设备还可以根据其他参数确定PTRS图案，例如MCS门限、MCS等，本申请在此不做具体限定。
收发单元410用于接收或发送OFDM信号，该OFDM信号包括PTRS。
可选地，该处理单元420还用于根据该第三调度带宽门限和调度带宽确定第二PTRS图案，若第二PTRS图案不满足所述第二条件；根据该第二PTRS图案确定OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得，可选地，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当该处理单元420确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
在再一种设计中，处理单元420用于确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，该处理单元420还用于根据该PTRS的第一开销确定PTRS的第二开销；该处理单元420还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销确定映射数据的第一资源单元的数量。
可选地，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000054
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000055
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000056
为DMRS的开销，
Figure PCTCN2022086485-appb-000057
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000058
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
还应理解，该终端设备中的收发单元410可对应于图12中示出的终端设备中的收发器620，该终端设备中的处理单元420可对应于图12中示出的终端设备中的处理器610。
还应理解，该终端设备中的收发单元410可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图12中示出的终端设备中的收发器620，该终端设备中的处理单元420可通过至少一个处理器实现，例如可对应于图12中示出的终端设备中的处理器610，该终端设备中的处理单元420还可以通过至少一个逻辑电路实现。
可选地，终端设备还可以包括存储单元，该存储单元可以用于存储指令或者数据，处理单元可以调用该存储单元中存储的指令或者数据，以实现相应的操作。
图11是本申请实施例提供的另一种通信装置的示意性框图。该通信装置500包括收发单元510和处理单元520。收发单元510可以与外部进行通信，处理单元520用于进行数据处理。收发单元510还可以称为通信接口或通信单元。
该通信装置500可以为网络设备，其中，收发单元510用于执行上文方法实施例中网络设备的接收或发送的操作，处理单元520用于执行上文方法实施例中网络设备内部处理的操作。
可选地，该通信装置500还可以包括存储单元，该存储单元可以用于存储指令或者和/或数据，处理单元520可以读取存储单元中的指令或者和/或数据。
在一种设计中，收发单元510用于向终端设备发送第一调度带宽门限信息，该第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，该第一条件包括以下至少一项：基于该第一调度带宽门限确定的PTRS图案中不同PTRS的调制符号对应的映射位置不同；基于该第一调度带宽门限确定的PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；基于该调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为确定的PTRS图案对应的最小调度带宽。
可选地，该收发单元510还用于向该终端设备发送调度带宽信息，该调度带宽信息指示该调度带宽。
该收发单元510还用于接收或发送正交频分复用OFDM信号，该OFDM信号包括PTRS。
处理单元520用于根据该调度带宽门限确定OFDM信号中一个OFDM符号上的PTRS图案，该PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
可选地，该网络设备根据该调度带宽门限和该调度带宽确定OFDM信号中一个OFDM符号上的PTRS图案。应理解，除参数调度带宽门限和调度带宽之外，网络设备还可以根据其他参数确定PTRS图案，例如MCS门限、MCS等，本申请在此不做具体限定。
可选地，在该收发单元510向终端设备发送第一调度带宽门限信息之前，该收发单元510还用于接收来自该终端设备的第二调度带宽门限信息，该第二调度带宽门限信息指示 第二调度带宽门限，该第二调度带宽门限基于该终端设备的能力确定；该处理单元520还用于根据该第二调度带宽门限确定该第一调度带宽门限。
基于上述方案，网络设备在配置第一调度带宽门限时可以参考终端设备基于自身能力上报的第二调度带宽门限，例如终端设备在芯片质量比较差，或者相噪水平比较恶劣时上报可以使得同一个调度带宽对应的PTRS总调制符号数越多的门限值。从而使得网络设备配置的调度带宽门限更匹配当前终端设备的性能。
在另一种设计中，收发单元510用于接收或发送正交频分复用OFDM信号，该OFDM信号包括PTRS；该处理单元520用于根据第三调度带宽门限确定该OFDM信号中的一个OFDM符号上的第一PTRS图案，该第一PTRS图案满足第二条件，该第二条件包括以下至少一项：该第一PTRS图案中不同PTRS的调制符号对应的映射位置不同；该第一PTRS图案中不同PTRS组的PTRS的调制符号对应的映射位置不连续；该第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，该调度带宽为该网络设备分配给该终端设备的带宽。
可选地，网络设备根据该调度带宽门限和该调度带宽确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案。应理解，除参数调度带宽门限和调度带宽之外，网络设备还可以根据其他参数确定PTRS图案，例如MCS门限、MCS等，本申请在此不做具体限定。
第三调度带宽门限可根据现有协议确定，网络设备在确定PTRS图案时需保证OFDM信号中一个OFDM符号上的PTRS图案满足第二条件，从而使得网络设备在确定PTRS图案时不会出现行为模糊的情况，并且可以保证解调性能，提高频谱效率。
可选地，该处理单元520还用于根据该第三调度带宽门限和该调度带宽确定第二PTRS图案，当该第二PTRS图案不满足该第二条件；该处理单元520还用于根据该第二PTRS图案确定该OFDM信号中的一个OFDM符号上的该第一PTRS图案，该第一PTRS图案为减少该第二PTRS图案中的PTRS组数，和/或减少该第二PTRS图案中的PTRS组内的调制符号数所得，第一PTRS图案可以是PTRS图案集合中的一种。
可选地，当该处理单元520确定第二PTRS图案不满足所述第二条件时，通过依次递减选择PTRS图案集合中的图案，直至获得满足第二条件的第一PTRS图案，或该处理单元根据调度带宽确定满足第二条件的PTRS的总调制符号，然后选择小于等于该总调制符号的最大PTRS调制符号数对应的第一PTRS图案。
在再一种设计中，处理单元520用于确定PTRS的第一开销，该PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，该PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；当该PTRS的第一开销大于第二阈值时，该处理单元根据该PTRS的第一开销确定PTRS的第二开销；该处理单元还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及该PTRS的第二开销共同确定映射正交频分复用OFDM信号的第一资源单元的数量。
可选地，该第一资源单元的数量可根据以下关系式确定：
Figure PCTCN2022086485-appb-000059
其中，N RE为第一资源单元的数量，
Figure PCTCN2022086485-appb-000060
为一个资源块RB包括的子载波数量，
Figure PCTCN2022086485-appb-000061
为 DMRS的开销，
Figure PCTCN2022086485-appb-000062
为高层信令配置的综合开销，
Figure PCTCN2022086485-appb-000063
为该PTRS的第二开销。
可选地，该PTRS的第二开销为该PTRS的第一开销或该PTRS的量化开销，该PTRS的量化开销基于该PTRS的第一开销和量化间隔确定。
还应理解，该网络设备中的收发单元510为可对应于图13中示出的网络设备中的收发器720，该网络设备中的处理单元520可对应于图13中示出的网络设备中的处理器710。可选地，网络设备还可以包括存储单元，该存储单元可以用于存储指令或者数据，处理单元可以调用该存储单元中存储的指令或者数据，以实现相应的操作。
还应理解，该网络设备中的收发单元510为可通过通信接口(如收发器或输入/输出接口)实现，例如可对应于图13中示出的网络设备中的收发器720，该网络设备中的处理单元520可通过至少一个处理器实现，例如可对应于图13中示出的网络设备中的处理器710，该网络设备中的处理单元520可通过至少一个逻辑电路实现。
如图12所示，本申请实施例还提供一种通信装置600。该通信装置600包括处理器610，处理器610与存储器620耦合，存储器620用于存储计算机程序或指令或者和/或数据，处理器610用于执行存储器620存储的计算机程序或指令和/或者数据，使得上文方法实施例中的方法被执行。
可选地，该通信装置600包括的处理器610为一个或多个。
可选地，如图12所示，该通信装置600还可以包括存储器620。
可选地，该通信装置600包括的存储器620可以为一个或多个。
可选地，该存储器620可以与该处理器610集成在一起，或者分离设置。
可选地，如图12所示，该通信装置600还可以包括收发器630，收发器630用于信号的接收和/或发送。例如，处理器610用于控制收发器630进行信号的接收和/或发送。
作为一种方案，该通信装置600用于实现上文方法实施例中由终端设备执行的操作。
例如，处理器610用于实现上文方法实施例中由终端设备执行的处理操作，收发器630用于实现上文方法实施例中由终端设备执行的接收或发送的操作。装置400中的处理单元420可以为图12中的处理器，收发单元410可以为图12中的收发器。处理器610执行的操作具体可以参见上文对处理单元420的说明，收发器630执行的操作可以参见对收发单元410的说明，这里不再赘述。
如图13所示，本申请实施例还提供一种通信装置700。该通信装置700包括处理器710，处理器710与存储器720耦合，存储器720用于存储计算机程序或指令或者和/或数据，处理器710用于执行存储器720存储的计算机程序或指令和/或者数据，使得上文方法实施例中的方法被执行。
可选地，该通信装置700包括的处理器710为一个或多个。
可选地，如图13所示，该通信装置700还可以包括存储器720。
可选地，该通信装置700包括的存储器720可以为一个或多个。
可选地，该存储器720可以与该处理器710集成在一起，或者分离设置。
可选地，如图13所示，该通信装置700还可以包括收发器730，收发器730用于信号的接收和/或发送。例如，处理器710用于控制收发器730进行信号的接收和/或发送。
作为一种方案，该通信装置700用于实现上文方法实施例中由网络设备执行的操作。例如，处理器710用于实现上文方法实施例中由网络设备内部执行的操作，收发器730用于实现上文方法实施例中由网络设备执行的接收或发送的操作。装置500中的处理单元 520可以为图13中的处理器，收发单元510可以为图13中的收发器730。处理器710执行的操作具体可以参见上文对处理单元520的说明，收发器730执行的操作可以参见对收发单元510的说明，这里不再赘述。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述方法实施例中由网络设备或终端设备执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法实施例中由网络设备或终端设备执行的方法。
本申请实施例还提供一种包含指令的计算机程序产品，该指令被计算机执行时使得该计算机实现上述方法实施例中由网络设备或终端设备执行的方法。
本申请实施例还提供一种通信系统，该通信系统包括上文实施例中的网络设备和终端设备。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在本申请实施例中，网络设备或终端设备可以包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。其中，硬件层可以包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。操作系统层的操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。应用层可以包含浏览器、通讯录、文字处理软件、即时通信软件等应用。
本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构进行特别限定，只要能够通过运行记录有本申请实施例提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可。例如，本申请实施例提供的方法的执行主体可以是网络设备或终端设备，或者，是网络设备或终端设备中能够调用程序并执行程序的功能模块。
本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本文中使用的术语“制品”可以涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。
本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可以包括但不限于：无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
可以理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还可以理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器 (read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)。例如，RAM可以用作外部高速缓存。作为示例而非限定，RAM可以包括如下多种形式：静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的保护范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。此外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如，所述计算机可以是个人计算机，服务器，或者网络设备等。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站 站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质、或者半导体介质(例如固态硬盘(solid state disk，(SSD))等。例如，前述的可用介质可以包括但不限于：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (33)

  1. 一种确定相位跟踪参考信号PTRS图案的方法，其特征在于，包括：
    终端设备接收来自网络设备的第一调度带宽门限信息，所述第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，所述第一条件为基于所述第一调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述确定的PTRS图案对应的最小调度带宽；
    所述终端设备根据所述调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，所述PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
  2. 根据权利要求1所述的方法，其特征在于，在所述终端设备接收来自网络设备的第一调度带宽门限信息之前，所述方法还包括：
    根据所述终端设备的能力确定第二调度带宽门限；
    所述终端设备向所述网络设备发送第二调度带宽门限信息，所述第二调度带宽门限信息指示所述第二调度带宽门限。
  3. 一种确定相位跟踪参考信号PTRS图案的方法，其特征在于，包括：
    终端设备根据第三调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的第一PTRS图案，所述第一PTRS图案满足第二条件，所述第二条件为所述第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，所述第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为网络设备分配给所述终端设备的带宽。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备根据第三调度带宽门限和调度带宽确定OFDM信号中一个OFDM符号上的第一PTRS图案包括：
    所述终端设备根据所述第三调度带宽门限和所述调度带宽确定第二PTRS图案，所述第二PTRS图案不满足所述第二条件；
    根据所述第二PTRS图案确定所述OFDM信号中的一个OFDM符号上的所述第一PTRS图案，所述第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得。
  5. 一种确定资源单元的方法，其特征在于，包括：
    终端设备确定PTRS的第一开销，所述PTRS的第一开销基于PTRS的总调制符号数，调度给所述终端设备的资源块数量和PTRS的符号级时域密度确定，其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；
    当所述PTRS的第一开销大于或等于第二阈值时，根据所述PTRS的第一开销确定PTRS的第二开销；
    所述终端设备根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及所述PTRS的第二开销确定映射数据的第一资源单元的数量。
  6. 根据权利要求5所述的方法，其特征在于，所述第一资源单元的数量可根据以下 关系式确定：
    Figure PCTCN2022086485-appb-100001
    其中，N RE为所述第一资源单元的数量，
    Figure PCTCN2022086485-appb-100002
    为一个资源块RB包括的子载波数量，
    Figure PCTCN2022086485-appb-100003
    为所述DMRS的开销，
    Figure PCTCN2022086485-appb-100004
    为所述高层信令配置的综合开销，
    Figure PCTCN2022086485-appb-100005
    为所述PTRS的第二开销。
  7. 根据权利要求5或6所述的方法，其特征在于，所述PTRS的第二开销为所述PTRS的第一开销或所述PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
  8. 一种确定相位跟踪参考信号PTRS图案的方法，其特征在于，包括：
    网络设备向终端设备发送第一调度带宽门限信息，所述第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，所述第一条件为基于所述调度带宽门限确定的PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述确定的PTRS图案对应的最小调度带宽；
    所述网络设备根据所述调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，所述PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
  9. 根据权利要求8所述的方法，其特征在于，在所述网络设备向终端设备发送第一调度带宽门限信息之前，所述方法还包括：
    所述网络设备接收来自所述终端设备的第二调度带宽门限信息，所述第二调度带宽门限信息指示第二调度带宽门限，所述第二调度带宽门限基于所述终端设备的能力确定；
    所述网络设备根据所述第二调度带宽门限确定所述第一调度带宽门限。
  10. 一种确定相位跟踪参考信号PTRS图案的方法，其特征在于，包括：
    网络设备根据第三调度带宽门限确定正交频分复用OFDM信号中的一个OFDM符号上的第一PTRS图案，所述第一PTRS图案满足第二条件，所述第二条件为所述第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，所述第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述网络设备分配给端设备的带宽。
  11. 根据权利要求10所述的方法，其特征在于，所述网络设备根据第三调度带宽门限和调度带宽确定所述OFDM信号中的一个OFDM符号上的第一PTRS图案包括：
    所述网络设备根据所述第三调度带宽门限和所述调度带宽确定第二PTRS图案，所述第二PTRS图案不满足所述第二条件；
    所述网络设备根据所述第二PTRS图案确定所述OFDM信号中的一个OFDM符号上的所述第一PTRS图案，所述第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得。
  12. 一种确定资源单元的方法，其特征在于，包括：
    网络设备确定PTRS的第一开销，所述PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，所述PTRS的总调 制符号数为PTRS组数与PTRS组内的调制符号数的乘积；
    当所述PTRS的第一开销大于或等于第二阈值时，根据所述PTRS的第一开销确定PTRS的第二开销；
    所述网络设备根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及所述PTRS的第二开销确定映射数据的第一资源单元的数量。
  13. 根据权利要求12所述的方法，其特征在于，所述第一资源单元的数量可根据以下关系式确定：
    Figure PCTCN2022086485-appb-100006
    其中，N RE为所述第一资源单元的数量，
    Figure PCTCN2022086485-appb-100007
    为一个资源块RB包括的子载波数量，
    Figure PCTCN2022086485-appb-100008
    为所述DMRS的开销，
    Figure PCTCN2022086485-appb-100009
    为所述高层信令配置的综合开销，
    Figure PCTCN2022086485-appb-100010
    为所述PTRS的第二开销。
  14. 根据权利要求12或13所述的方法，其特征在于，所述PTRS的第二开销为所述PTRS的第一开销或所述PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
  15. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自网络设备的第一调度带宽门限信息，所述第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，所述第一条件为基于所述第一调度带宽门限确定的相位跟踪参考信号PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述确定的PTRS图案对应的最小调度带宽；
    处理单元，用于根据所述调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，所述PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
  16. 根据权利要求15所述的装置，其特征在于，
    所述处理单元，还用于根据终端设备的能力确定第二调度带宽门限；
    所述收发单元，还用于向所述网络设备发送第二调度带宽门限信息，所述第二调度带宽门限信息指示所述第二调度带宽门限。
  17. 一种通信装置，其特征在于，包括：
    处理单元，用于根据第三调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的第一相位跟踪参考信号PTRS图案，所述第一PTRS图案满足第二条件，所述第二条件为所述第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值，所述第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为网络设备分配给所述终端设备的带宽。
  18. 根据权利要求17所述的装置，其特征在于，
    所述处理单元，还用于根据所述第三调度带宽门限和所述调度带宽确定第二PTRS图案，所述第二PTRS图案不满足所述第二条件；
    所述处理单元，还用于根据所述第二PTRS图案确定所述OFDM信号中的一个OFDM符号上的所述第一PTRS图案，所述第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得。
  19. 一种通信装置，其特征在于，包括：
    处理单元，用于确定相位跟踪参考信号PTRS的第一开销，所述PTRS的第一开销基于PTRS的总调制符号数，调度给所述终端设备的资源块数量和PTRS的符号级时域密度确定，其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；
    当所述PTRS的第一开销大于或等于第二阈值时，所述处理单元，还用于根据所述PTRS的第一开销确定PTRS的第二开销；
    所述处理单元，还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及所述PTRS的第二开销确定映射数据的第一资源单元的数量。
  20. 根据权利要求19所述的装置，其特征在于，所述第一资源单元的数量可根据以下关系式确定：
    Figure PCTCN2022086485-appb-100011
    其中，N RE为所述第一资源单元的数量，
    Figure PCTCN2022086485-appb-100012
    为一个资源块RB包括的子载波数量，
    Figure PCTCN2022086485-appb-100013
    为所述DMRS的开销，
    Figure PCTCN2022086485-appb-100014
    为所述高层信令配置的综合开销，
    Figure PCTCN2022086485-appb-100015
    为所述PTRS的第二开销。
  21. 根据权利要求19或20所述的装置，其特征在于，所述PTRS的第二开销为所述PTRS的第一开销或所述PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
  22. 一种通信装置，其特征在于，包括：
    收发单元，用于向终端设备发送第一调度带宽门限信息，所述第一调度带宽门限信息指示的第一调度带宽门限满足第一条件，所述第一条件为基于所述调度带宽门限确定的相位跟踪参考信号PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于第一阈值；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述确定的PTRS图案对应的最小调度带宽；
    处理单元，用于根据所述调度带宽门限确定正交频分复用OFDM信号中一个OFDM符号上的PTRS图案，所述PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号。
  23. 根据权利要求20所述的装置，其特征在于，
    所述收发单元，还用于接收来自所述终端设备的第二调度带宽门限信息，所述第二调度带宽门限信息指示第二调度带宽门限，所述第二调度带宽门限基于所述终端设备的能力确定；
    所述处理单元，还用于根据所述第二调度带宽门限确定所述第一调度带宽门限。
  24. 一种通信装置，其特征在于，包括：
    处理单元，用于根据第三调度带宽门限确定正交频分复用OFDM信号中的一个OFDM符号上的第一相位跟踪参考信号PTRS图案，所述第一PTRS图案满足第二条件，所述第二条件为所述第一PTRS图案中的总调制符号数与调度带宽内的子载波数的比值小于等于 第一阈值，所述第一PTRS图案包括至少一个PTRS组，每个PTRS组包括至少一个调制符号；
    其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积，所述调度带宽为所述网络设备分配给端设备的带宽。
  25. 根据权利要求24所述的装置，其特征在于，
    所述处理单元，还用于根据所述第三调度带宽门限和所述调度带宽确定第二PTRS图案，所述第二PTRS图案不满足所述第二条件；
    所述处理单元，还用于根据所述第二PTRS图案确定所述OFDM信号中的一个OFDM符号上的所述第一PTRS图案，所述第一PTRS图案为减少所述第二PTRS图案中的PTRS组数，和/或减少所述第二PTRS图案中的PTRS组内的调制符号数所得。
  26. 一种通信装置，其特征在于，包括：
    处理单元，用于确定相位跟踪参考信号PTRS的第一开销，所述PTRS的第一开销基于PTRS的总调制符号数，调度给终端设备的资源块数量和PTRS的符号级时域密度确定，其中，所述PTRS的总调制符号数为PTRS组数与PTRS组内的调制符号数的乘积；
    当所述PTRS的第一开销大于或等于第二阈值时，所述处理单元，还用于根据所述PTRS的第一开销确定PTRS的第二开销；
    所述处理单元，还用于根据解调参考信号DMRS的开销，高层信令配置的综合开销，以及所述PTRS的第二开销确定映射数据的第一资源单元的数量。
  27. 根据权利要求26所述的装置，其特征在于，所述第一资源单元的数量可根据以下关系式确定：
    Figure PCTCN2022086485-appb-100016
    其中，N RE为所述第一资源单元的数量，
    Figure PCTCN2022086485-appb-100017
    为一个资源块RB包括的子载波数量，
    Figure PCTCN2022086485-appb-100018
    为所述DMRS的开销，
    Figure PCTCN2022086485-appb-100019
    为所述高层信令配置的综合开销，
    Figure PCTCN2022086485-appb-100020
    为所述PTRS的第二开销。
  28. 根据权利要求26或27所述的方法，其特征在于，所述PTRS的第二开销为所述PTRS的第一开销或所述PTRS的量化开销，所述PTRS的量化开销基于所述PTRS的第一开销和量化间隔确定。
  29. 一种通信装置，其特征在于，所述装置包括处理器和存储介质，所述存储介质存储有指令，所述指令被所述处理器运行时，
    使得所述处理器执行如权利要求1至7中任意一项所述的方法，或者
    使得所述处理器执行如权利要求8至14中任意一项所述的方法。
  30. 一种通信装置，其特征在于，所述装置包括处理器，
    所述处理器用于执行如权利要求1至7中任意一项所述的方法，或者
    所述处理器用于执行如权利要求8至14中任意一项所述的方法。
  31. 一种通信系统，其特征在于，所述通信系统包括终端设备和网络设备，所述终端设备用于执行如权利要求1至7中任意一项所述的方法，所述网络设备用于执行如权利要求8至14中任意一项所述的方法。
  32. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，当所述计算机程序在计算机上运行时，
    使得所述计算机执行如权利要求1至7中任意一项所述的方法，或者
    使得所述计算机执行如权利要求8至14中任意一项所述的方法。
  33. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序，当所述计算机程序被运行时，
    使得所述计算机执行如权利要求1至7中任意一项所述的方法，或者
    使得所述计算机执行如权利要求8至14中任意一项所述的方法。
PCT/CN2022/086485 2021-04-27 2022-04-13 一种确定ptrs图案的方法和装置 WO2022228117A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22794588.8A EP4287545A1 (en) 2021-04-27 2022-04-13 Method and device for determining ptrs pattern
US18/476,348 US20240039668A1 (en) 2021-04-27 2023-09-28 Method and apparatus for determining phase tracking reference signal pattern

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110460528.7 2021-04-27
CN202110460528.7A CN115250221A (zh) 2021-04-27 2021-04-27 一种确定ptrs图案的方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/476,348 Continuation US20240039668A1 (en) 2021-04-27 2023-09-28 Method and apparatus for determining phase tracking reference signal pattern

Publications (1)

Publication Number Publication Date
WO2022228117A1 true WO2022228117A1 (zh) 2022-11-03

Family

ID=83696220

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/086485 WO2022228117A1 (zh) 2021-04-27 2022-04-13 一种确定ptrs图案的方法和装置

Country Status (4)

Country Link
US (1) US20240039668A1 (zh)
EP (1) EP4287545A1 (zh)
CN (1) CN115250221A (zh)
WO (1) WO2022228117A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220070823A1 (en) * 2020-08-28 2022-03-03 Qualcomm Incorporated Techniques for flexible reference signal patterns in wireless communications systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108632005A (zh) * 2017-03-24 2018-10-09 华为技术有限公司 一种参考信号传输方法、装置及系统
US20190182091A1 (en) * 2017-12-12 2019-06-13 Qualcomm Incorporated Phase tracking reference signal for sub-symbol phase tracking
US20200007369A1 (en) * 2017-03-22 2020-01-02 Mitsubishi Electric Corporation Reference signal for phase tracking insertion
CN111316580A (zh) * 2017-11-17 2020-06-19 瑞典爱立信有限公司 用于nr中csi报告的新csi参考资源定义

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200007369A1 (en) * 2017-03-22 2020-01-02 Mitsubishi Electric Corporation Reference signal for phase tracking insertion
CN108632005A (zh) * 2017-03-24 2018-10-09 华为技术有限公司 一种参考信号传输方法、装置及系统
CN111316580A (zh) * 2017-11-17 2020-06-19 瑞典爱立信有限公司 用于nr中csi报告的新csi参考资源定义
US20190182091A1 (en) * 2017-12-12 2019-06-13 Qualcomm Incorporated Phase tracking reference signal for sub-symbol phase tracking

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "PTRS for DFT-s-OFDM", 3GPP DRAFT; R1-1708142, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Hangzhou, China; 20170515 - 20170519, 14 May 2017 (2017-05-14), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051273338 *
NOKIA, ALCATEL-LUCENT SHANGHAI BELL: "Discussion on PT-RS design for CP-OFDM", 3GPP DRAFT; R1-1711308, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Qingdao, P.R. China; 20170627 - 20170630, 26 June 2017 (2017-06-26), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051300502 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220070823A1 (en) * 2020-08-28 2022-03-03 Qualcomm Incorporated Techniques for flexible reference signal patterns in wireless communications systems

Also Published As

Publication number Publication date
CN115250221A (zh) 2022-10-28
EP4287545A1 (en) 2023-12-06
US20240039668A1 (en) 2024-02-01

Similar Documents

Publication Publication Date Title
CN109802792B (zh) 接收参考信号的方法和发送参考信号的方法
CN110891312B (zh) 一种信息发送方法，信息接收的方法和装置
WO2018082544A1 (zh) 无线通信的方法和装置
US11632207B2 (en) Method and apparatus for transmitting uplink signal
KR102230746B1 (ko) 통신 방법, 네트워크 디바이스, 단말 디바이스, 컴퓨터 판독 가능형 저장 매체, 컴퓨터 프로그램 제품, 프로세싱 장치 및 통신 시스템
WO2018228533A1 (zh) 资源映射的方法和装置
WO2021098355A1 (zh) Csi测量方法及装置
WO2020244728A1 (en) Dynamic discrete fourier transform or bandwidth size indication
US20240039668A1 (en) Method and apparatus for determining phase tracking reference signal pattern
WO2019242738A1 (zh) 发送调制符号的方法、接收调制符号的方法和通信设备
WO2018171742A1 (zh) 无线通信的方法和装置
WO2018127177A1 (zh) 一种通知通信设备的能力信息的方法及设备
WO2019047553A1 (zh) 一种时隙格式指示方法、设备及系统
CN112235087B (zh) 一种解调参考信号配置方法、终端及网络侧设备
WO2018202041A1 (zh) 信息发送的方法及其装置和信息接收的方法及其装置
WO2022151439A1 (zh) 一种通信方法及装置
WO2020216068A1 (zh) 发送参考信号的方法和装置
WO2021226794A1 (zh) 数据传输方法及相关装置
WO2020114317A1 (zh) 一种参考信号的传输方法及装置
WO2018202128A1 (zh) 一种通信方法及装置
WO2022151500A1 (zh) 一种通信方法及装置
WO2023011551A1 (zh) 一种相位跟踪参考信号的传输方法及装置
EP4336786A1 (en) Signal transmission method and communication apparatus
WO2022036527A1 (zh) 上行控制信息的传输方法、通信装置及相关设备
WO2022052131A1 (zh) 通信方法、装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22794588

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022794588

Country of ref document: EP

Effective date: 20230901

NENP Non-entry into the national phase

Ref country code: DE