WO2021189216A1 - Procédé et appareil de configuration de signal de référence - Google Patents

Procédé et appareil de configuration de signal de référence Download PDF

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Publication number
WO2021189216A1
WO2021189216A1 PCT/CN2020/080751 CN2020080751W WO2021189216A1 WO 2021189216 A1 WO2021189216 A1 WO 2021189216A1 CN 2020080751 W CN2020080751 W CN 2020080751W WO 2021189216 A1 WO2021189216 A1 WO 2021189216A1
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WIPO (PCT)
Prior art keywords
reference signal
parameter value
communication system
demodulation reference
end device
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PCT/CN2020/080751
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English (en)
Chinese (zh)
Inventor
徐明慧
黄煌
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华为技术有限公司
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Priority to PCT/CN2020/080751 priority Critical patent/WO2021189216A1/fr
Publication of WO2021189216A1 publication Critical patent/WO2021189216A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • This application relates to the field of communication technology, and in particular to a method and device for setting a reference signal.
  • High frequency (frequency bands above 6G, mainly including 28G, 39G, 60G, 73G, etc.) has become a hot spot for research and development in the industry to solve the growing communication demand due to its rich frequency band resources. Its notable features include not only large bandwidth and highly integrated antenna arrays to achieve high throughput, but also serious mid-range radio frequency distortion problems, such as phase noise (PHN) and carrier frequency offset (CFO) In addition, the high-frequency Doppler frequency shift is also larger, and the three will introduce phase errors, resulting in the performance of the high-frequency communication system degraded or even unable to work.
  • PPN phase noise
  • CFO carrier frequency offset
  • phase noise Take phase noise (referred to as "phase noise") as an example.
  • phase noise As the frequency band increases, the higher the power spectrum density of phase noise, the greater the impact on the received signal.
  • Figure 1 it is a schematic diagram of the power spectrum density of phase noise at different frequency points.
  • the left and right diagrams are the power spectrum density diagrams of different frequency points in phase noise model 1 and phase noise model 2, respectively. It can be seen that the higher the frequency point , The higher the power spectral density of phase noise.
  • Figure 2 it is a schematic diagram of the influence of different phase noises on the received signal in the frequency domain.
  • the left picture shows no phase noise
  • the middle picture shows weak phase noise
  • the right picture shows strong phase noise.
  • the signal has no interference; when the phase noise is weak, the phase noise interference of the received signal is small; when the phase noise is strong, the phase noise interference of the received signal is greater.
  • 64QAM and 256QAM constellation points are more blurred than 64QAM due to the influence of phase noise ICI, which significantly increases the demodulation/decoding difficulty of 256QAM.
  • MIMO multiple-input multiple-output
  • the embodiments of the present application provide a reference signal setting method and device to reduce the influence of ICI on channel estimation and accurately estimate the channel; in the case of different sources of phase noise, accurately estimate and compensate for ICI.
  • a method for setting a reference signal may be a transmitter device or a module applied to the transmitter device, such as a chip or a chip system.
  • the sending end device may be an access network device, and the corresponding receiving end device is a terminal device; the sending end device may also be a terminal device, and the corresponding receiving end device is an access network device.
  • the transmitting end device obtains the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference; the transmitting end device determines the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system; the transmitting end device According to the frequency domain density of the demodulation reference signal, the demodulation reference signal is mapped to the orthogonal frequency division multiplexing symbol; and the transmitting end device sends the orthogonal frequency division multiplexing symbol.
  • the transmitter device dynamically determines the frequency domain density of the demodulation reference signal according to the parameter value of the current communication system.
  • the parameter value of the communication system is associated with the order of the non-negligible subcarrier interference. Therefore, the demodulation reference signal can be set accurately, the influence of inter-subcarrier interference on channel estimation can be reduced, and the accuracy of channel estimation can be improved.
  • the transmitting end device determining the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system includes: determining the first subcarrier interference according to the parameter value of the communication system The first order; and according to the first order of subcarrier interference, the frequency domain density of the demodulation reference signal is determined.
  • the greater the first order of subcarrier interference the greater the frequency of the demodulation reference signal. The smaller the domain density.
  • the method further includes: the transmitting end device obtains a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein each The parameter value set of the communication system includes the value range of the parameter of at least one communication system; the sending end device determines the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; The relationship is set, and the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set is selected as the frequency domain density of the demodulation reference signal.
  • the sender device is an access network device, and the method further includes: the sender device receives first information reported by the terminal device, where the first information includes at least one of the following information: Modulate the frequency domain density of the reference signal, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, and the first order of subcarrier interference; and the transmitting end device determines according to the first information The frequency domain density of the demodulation reference signal.
  • the method further includes: pre-defining, pre-configuring or pre-storing at least one The preset relationship between the parameter value set of the communication system and the frequency domain density of the demodulation reference signal.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding rate , SNR, demodulation reference signal quantity.
  • a method for setting a reference signal may be a receiving device or a module applied to the receiving device, such as a chip or a chip system.
  • the receiving end device may be an access network device, and the corresponding sending end device is a terminal device; the receiving end device may also be a terminal device, and the corresponding sending end device is an access network device.
  • the receiving end equipment receives orthogonal frequency division multiplexing symbols, and the orthogonal frequency division multiplexing symbols are mapped with demodulation reference signals; the receiving end equipment obtains the parameter values of the communication system, the parameter values of the communication system and the first order of subcarrier interference Number correlation; the receiving end device determines the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system; and the receiving end device obtains the demodulation on the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal Reference signal.
  • the receiving end device dynamically determines the frequency domain density of the demodulation reference signal according to the parameter value of the current communication system.
  • the parameter value of the communication system is associated with the order of the non-negligible subcarrier interference. Therefore, the accuracy of channel estimation can be improved.
  • the receiving end device determining the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system includes: determining the first subcarrier interference according to the parameter value of the communication system The first order; and according to the first order of subcarrier interference, the frequency domain density of the demodulation reference signal is determined. Under the same DMRS configuration, the greater the first order of subcarrier interference, the greater the frequency of the demodulation reference signal. The smaller the domain density.
  • the method further includes: the receiving end device acquires a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein each The parameter value set of the communication system includes the value range of the parameter of at least one communication system; the receiving end device determines the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; The relationship is set, and the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set is selected as the frequency domain density of the demodulation reference signal.
  • the receiving end device is a terminal device
  • the method further includes: the receiving end device reporting first information, the first information includes at least one of the following information: frequency domain of the demodulation reference signal Density, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, and the first order of subcarrier interference.
  • the method further includes: pre-defining, pre-configuring or pre-storing at least one The preset relationship between the parameter value set of the communication system and the frequency domain density of the demodulation reference signal.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding rate , SNR, demodulation reference signal quantity.
  • a method for setting a reference signal may be a transmitter device or a module applied to the transmitter device, such as a chip or a chip system.
  • the sending end device may be an access network device, and the corresponding receiving end device is a terminal device; the sending end device may also be a terminal device, and the corresponding receiving end device is an access network device.
  • the transmitting end device obtains the parameter value of the communication system; the transmitting end device determines that the first order of subcarrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, according to the parameter value, determines that the pattern of the phase tracking reference signal is a block guide
  • the block pilot includes at least one non-zero-power resource unit and at least two zero-power resource units; wherein, the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero-power resource unit.
  • the resource unit overlaps, and at least one non-zero power resource unit is orthogonal, and at least one zero power resource unit is orthogonal;
  • the transmitting end device maps the phase tracking reference signal to the orthogonal frequency division multiplexing symbol according to the pilot pattern; And the transmitting end device transmits orthogonal frequency division multiplexing symbols.
  • the transmitting end device determines that the pattern of the phase tracking reference signal is a block pilot with multiple phases.
  • the phase tracking reference signal of at least two of the tracking reference signal ports is semi-orthogonal multiplexed, so that the receiving end can use the semi-orthogonal multiplexed phase tracking reference signal to reduce the PTRS overhead while accurately estimating and compensating Inter-subcarrier interference.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2)+M , Where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the method further includes: the transmitting end device determines the first order of sub-carrier interference according to the parameter value of the communication system; and the transmitting end device determines the first order of sub-carrier interference according to the first sub-carrier interference.
  • the order determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the method further includes: the transmitting end device obtains the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, wherein each The parameter value set of each communication system includes the value range of the parameter of at least one communication system; the sending end device determines the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; The preset relationship selects the multiplexing mode of multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of multiple phase tracking reference signal ports.
  • the sender device is an access network device, and the method further includes: the sender device receives first information reported by the terminal device, and the first information includes at least one of the following information: The multiplexing mode of the phase tracking reference signal port, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, the first order of subcarrier interference; and the transmitting end equipment according to the first One piece of information determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the method further includes: pre-definition, pre-configuration, or The preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the multiple phase tracking reference signal ports is pre-stored.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding rate , Signal-to-noise ratio.
  • a method for setting a reference signal may be a receiving device or a module applied to the receiving device, such as a chip or a chip system.
  • the receiving end device may be an access network device, and the corresponding sending end device is a terminal device; the receiving end device may also be a terminal device, and the corresponding sending end device is an access network device.
  • the receiving end equipment receives the orthogonal frequency division multiplexing symbol and the orthogonal frequency division multiplexing symbol is mapped with a phase tracking reference signal; the receiving end equipment obtains the parameter value of the communication system; the receiving end equipment determines the first order of subcarrier interference according to the parameter value When the number is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, it is determined that the pattern of the phase tracking reference signal is a block pilot.
  • the block pilot includes at least one non-zero power resource unit and at least two zero power resource units
  • the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero-power resource unit overlap, and at least one non-zero-power resource unit is orthogonal, and at least one zero-power resource unit is positive Cross; and the receiving end device obtains the phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol according to the pilot pattern.
  • the receiving end device determines that the pattern of the phase tracking reference signal is a block pilot with multiple phases.
  • the phase tracking reference signals of at least two of the tracking reference signal ports are semi-orthogonally multiplexed, and the inter-subcarrier interference can be accurately estimated and compensated based on the phase tracking reference signal of the semi-orthogonal multiplexing.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2)+M , Where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the method further includes: the receiving end device determines the first order of sub-carrier interference according to the parameter value of the communication system; and the receiving end device determines the first order of sub-carrier interference according to the first sub-carrier interference.
  • the order determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the method further includes: the receiving end device obtains a preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, wherein each The parameter value set of each communication system includes the value range of the parameter of at least one communication system; the receiving end device determines the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the receiving end device determines the parameter value set corresponding to the parameter value of the at least one communication system according to The preset relationship selects the multiplexing mode of multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of multiple phase tracking reference signal ports.
  • the receiving end device is a terminal device, and the method further includes: the receiving end device reporting first information, and the first information includes at least one of the following information: multiple phase tracking reference signal ports The multiplexing mode, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, and the first order of subcarrier interference.
  • the method further includes: pre-definition, pre-configuration, or The preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the multiple phase tracking reference signal ports is pre-stored.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding rate , Signal-to-noise ratio.
  • a method for setting a reference signal may be a sender device or a module applied to the sender device, such as a chip or a chip system.
  • the sending end device may be an access network device, and the corresponding receiving end device is a terminal device; the sending end device may also be a terminal device, and the corresponding receiving end device is an access network device.
  • the transmitting end device determines the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, where ,
  • the first demodulation reference signal port and the second demodulation reference signal port are frequency-division multiplexed, the signals on the adjacent resource units in the first signal sequence in the first bandwidth range are all the same, and the signals on the adjacent resource units in the first signal sequence are the same in the first bandwidth range.
  • the signals on adjacent resource units in the two signal sequences are opposite; the transmitting end device sends first indication information, and the first indication information is used to indicate the first signal sequence and the second demodulation reference signal corresponding to the first demodulation reference signal port A second signal sequence corresponding to the port; and the transmitting end device sends the first signal sequence at the first demodulation reference signal port, and sends the second signal sequence at the second demodulation reference signal port.
  • the transmitter device When the inter-subcarrier interference is not negligible, the transmitter device sends a designated signal sequence on the two demodulation reference signal ports of the frequency division.
  • the designated signal sequence makes the demodulation reference signal port receive multiple channels on each subcarrier.
  • the influence of phase noise inter-subcarrier interference can be cancelled by the operation of the receiving end equipment, thereby reducing the influence of inter-subcarrier interference on channel estimation and improving the accuracy of channel estimation.
  • the sender device is an access network device, and the method further includes: the sender device receives a first message sent by the terminal device, and the first message indicates the first message suggested by the terminal device.
  • the method further includes: the transmitting end device obtains the preset relationship between the parameter value set of the at least one communication system and the signal sequence of the demodulation reference signal; A parameter value of a communication system, the parameter value set corresponding to the parameter value of at least one communication system is determined; and the transmitting end device selects the signal sequence of the demodulation reference signal corresponding to the determined parameter value set as the first according to the preset relationship The first signal sequence corresponding to the demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port.
  • the method further includes: the transmitting end device obtains the parameter value of the communication system; and the transmitting end device determines the first order of subcarrier interference according to the parameter value of the communication system.
  • a method for setting a reference signal may be a receiving device or a module applied to the receiving device, such as a chip or a chip system.
  • the receiving end device may be an access network device, and the corresponding sending end device is a terminal device; the receiving end device may also be a terminal device, and the corresponding sending end device is an access network device.
  • the receiving end device receives first indication information, where the first indication information is used to indicate the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, where the first demodulation The reference signal port and the second demodulation reference signal port are frequency-division multiplexed.
  • the signals on the adjacent resource units in the first signal sequence in the first bandwidth range are the same, and the signals on the second signal sequence in the second bandwidth range are the same.
  • the signals on the adjacent resource units are opposite; the receiving end device receives the first signal sequence at the first demodulation reference signal port and the second signal sequence at the second demodulation reference signal port; and the receiving end device is based on the second signal sequence , Eliminate the sub-carrier interference of the second signal sequence to the first signal sequence to obtain the first demodulation reference signal, and based on the first signal sequence, eliminate the sub-carrier interference of the first signal sequence to the second signal sequence to obtain the first signal sequence 2. Demodulate the reference signal.
  • the receiving end device When the inter-subcarrier interference is not negligible, the receiving end device sends a designated signal sequence on the two demodulation reference signal ports of the frequency division, and the designated signal sequence enables the demodulation reference signal port to receive multiple channels on each subcarrier.
  • the influence of phase noise inter-subcarrier interference can be cancelled by the operation of the receiving end equipment, thereby reducing the influence of inter-subcarrier interference on channel estimation and improving the accuracy of channel estimation.
  • the receiving end device is a terminal device, and the method further includes: the receiving end device sends a first message, the first message indicating that the terminal device suggests that the first demodulation reference signal port corresponds to The first signal sequence and the second signal sequence corresponding to the second demodulation reference signal port, and/or the first order of subcarrier interference suggested by the terminal device.
  • the method further includes: the receiving end device obtains the preset relationship between the parameter value set of the at least one communication system and the signal sequence of the demodulation reference signal; The parameter value of a communication system is determined, and the parameter value set corresponding to the parameter value of at least one communication system is determined; and the receiving end device selects the signal sequence of the demodulation reference signal corresponding to the determined parameter value set as the first according to the preset relationship.
  • the method further includes: the receiving end device obtains the parameter value of the communication system; and the receiving end device determines the first order of subcarrier interference according to the parameter value of the communication system.
  • a communication device for executing the foregoing first aspect or any possible implementation method of the first aspect.
  • the communication device may be the sender device in the foregoing first aspect or any possible implementation of the first aspect, or a module applied to the sender device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; the processing module is used to obtain the parameter value of the communication system, and the first-order interference between the parameter value of the communication system and the subcarrier The processing module is also used to determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system; the processing module is also used to map the demodulation reference signal to the frequency domain density of the demodulation reference signal Orthogonal frequency division multiplexing symbols; and a transceiver module for sending orthogonal frequency division multiplexing symbols.
  • the processing module is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processing module is also configured to determine the first order of sub-carrier interference according to the sub-carrier interference
  • the first order determines the frequency domain density of the demodulation reference signal. Under the same DMRS configuration, the greater the first order of subcarrier interference, the lower the frequency domain density of the demodulation reference signal.
  • the processing module is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein each communication The parameter value set of the system includes the value range of the parameter of at least one communication system; the processing module is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processing module, It is also used to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is an access network device; the transceiver module is also used to receive the first information reported by the terminal device, and the first information includes at least one of the following information: demodulation The frequency domain density of the reference signal, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, the first order of subcarrier interference; , To determine the frequency domain density of the demodulation reference signal.
  • the processing module is further configured to predefine, preconfigure or prestore at least one communication system parameter value set and the preset frequency domain density of the demodulation reference signal relation.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding code Rate, signal-to-noise ratio, demodulation reference signal quantity.
  • a communication device may be the sender device in the first aspect or any possible implementation of the first aspect, or a module applied to the sender device, such as a chip or Chip system.
  • the communication device includes a transceiver and a processor; the processor is used to obtain the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of sub-carrier interference; the processor is also used to determine and communicate with the communication system The parameter value corresponding to the frequency domain density of the demodulation reference signal; the processor is also used to map the demodulation reference signal to the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal; and the transceiver, Used to transmit Orthogonal Frequency Division Multiplexing symbols.
  • the processor is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processor is also configured to determine the first order of sub-carrier interference according to the sub-carrier interference
  • the first order determines the frequency domain density of the demodulation reference signal. Under the same DMRS configuration, the greater the first order of subcarrier interference, the lower the frequency domain density of the demodulation reference signal.
  • the processor is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, where each communication The parameter value set of the system includes the value range of the parameter of the at least one communication system; the processor is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processor, It is also used to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is an access network device; the transceiver is also used to receive the first information reported by the terminal device, and the first information includes at least one of the following information: demodulation reference The frequency domain density of the signal, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, and the first order of subcarrier interference; and the processor is further configured to, according to the first information, Determine the frequency domain density of the demodulation reference signal.
  • the processor is further configured to predefine, preconfigure or prestore at least one communication system parameter value set and the preset frequency domain density of the demodulation reference signal relation.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding code Rate, signal-to-noise ratio, demodulation reference signal quantity.
  • a communication device may be the sender device in the first aspect or any possible implementation of the first aspect, or a module applied to the sender device, such as a chip or a chip system.
  • the communication device includes at least one processor, configured to execute the foregoing first aspect or the method in any possible implementation manner of the first aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the foregoing first aspect or a method in any possible implementation manner of the first aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the above-mentioned first aspect or the method in any possible implementation of the first aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the first aspect or the method in any possible implementation of the first aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the foregoing first aspect or the method in any possible implementation manner of the first aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device causes the communication device to execute the first aspect or any of the possible implementation manners of the first aspect.
  • a computer program product storing a computer program is provided.
  • the communication device executes the method in the first aspect or any possible implementation of the first aspect.
  • a communication device for executing the foregoing second aspect or any possible implementation method of the second aspect.
  • the communication device may be the receiving end device in the foregoing second aspect or any possible implementation of the second aspect, or a module applied to the receiving end device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; There is a demodulation reference signal; the processing module is used to obtain the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference; the processing module is also used to determine the solution corresponding to the parameter value of the communication system Modulating the frequency domain density of the reference signal; and the processing module is further configured to obtain the demodulation reference signal on the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal.
  • the processing module is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processing module is further configured to determine the first order of sub-carrier interference according to the sub-carrier interference Determine the frequency domain density of the demodulation reference signal, where, under the same DMRS configuration, the greater the first order of subcarrier interference, the lower the frequency domain density of the demodulation reference signal.
  • the processing module is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein each The parameter value set of the communication system includes the value range of the parameter of the at least one communication system; the processing module is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processing module And is also used to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is a terminal device; the transceiver module is also used to report first information, and the first information includes at least one of the following information: the frequency domain of the demodulation reference signal Density, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, and the first order of subcarrier interference.
  • the processing module is also used to predefine, preconfigure or prestore at least one set of parameter values of the communication system and the preset of the frequency domain density of the demodulation reference signal Definite relationship.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding Code rate, signal-to-noise ratio, demodulation reference signal quantity.
  • a communication device is provided.
  • the communication device may be the receiving device in the second aspect or any possible implementation of the second aspect, or a module applied to the receiving device, such as a chip. Or chip system.
  • the communication device includes a transceiver and a processor; the transceiver is used to receive orthogonal frequency division multiplexing symbols, and the orthogonal frequency division multiplexing symbols are mapped with demodulation reference signals; the processor is used to obtain information about the communication system The parameter value, the parameter value of the communication system is associated with the first order of subcarrier interference; the processor is also used to determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system; and the processor is also used to According to the frequency domain density of the demodulation reference signal, the demodulation reference signal on the orthogonal frequency division multiplexing symbol is obtained.
  • the processor is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processor is further configured to determine the first order of sub-carrier interference according to the sub-carrier interference Determine the frequency domain density of the demodulation reference signal, where, under the same DMRS configuration, the greater the first order of subcarrier interference, the lower the frequency domain density of the demodulation reference signal.
  • the processor is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein each The parameter value set of the communication system includes the value range of the parameter of the at least one communication system; the processor is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processor And is also used to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is a terminal device; the transceiver is also used to report first information, and the first information includes at least one of the following information: the frequency domain density of the demodulation reference signal , The preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, and the first order of subcarrier interference.
  • the processor is further configured to pre-define, pre-configure or pre-store at least one communication system parameter value set and the preset frequency domain density of the demodulation reference signal Definite relationship.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding Code rate, signal-to-noise ratio, demodulation reference signal quantity.
  • a communication device is provided.
  • the communication device may be the receiving device in the second aspect or any possible implementation of the second aspect, or a module applied to the receiving device, such as a chip or Chip system.
  • the communication device includes at least one processor, configured to execute the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the foregoing second aspect or a method in any possible implementation manner of the second aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the above-mentioned second aspect or the method in any possible implementation of the second aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the second aspect or the method in any possible implementation of the second aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device executes the second aspect or any possible implementation manner of the second aspect. In the method.
  • a computer program product storing a computer program is provided.
  • the communication device executes the method in the second aspect or any possible implementation of the second aspect.
  • a communication device for executing the foregoing third aspect or any possible implementation method of the third aspect.
  • the communication device may be the sender device in the foregoing third aspect or any possible implementation of the third aspect, or a module applied to the sender device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; a processing module for obtaining parameter values of the communication system; and a processing module for determining sub parameters according to the parameter values.
  • the first order of carrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, it is determined that the pattern of the phase tracking reference signal is a block pilot.
  • the block pilot includes at least one non-zero power resource unit, and at least two Zero-power resource units; wherein the phase-tracking reference signal of any two of the multiple phase-tracking reference signal ports has at least one zero-power resource unit overlap, and at least one non-zero-power resource unit is orthogonal, at least one The zero-power resource unit is orthogonal; the processing module is also used to map the phase tracking reference signal to the orthogonal frequency division multiplexing symbol according to the pilot pattern; and the transceiver module is used to send the orthogonal frequency division multiplexing symbol.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2) +M, where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the processing module is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processing module is further configured to determine the first order of sub-carrier interference according to the sub-carrier interference
  • the first order number determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the processing module is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, where each The parameter value set of the communication system includes the value range of the parameter of the at least one communication system; the processing module is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and processing The module is also used to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set to the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is an access network device: a transceiver module, and is also used to receive first information reported by a terminal device, and the first information includes at least one of the following information: The multiplexing mode of the phase tracking reference signal port, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, the first order of subcarrier interference; and the processing module, According to the first information, the multiplexing mode of the multiple phase tracking reference signal ports is determined.
  • the processing module is also used to predefine, preconfigure or prestore at least one communication system parameter value set and multiple phase tracking reference signal port multiplexing mode The preset relationship.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding Bit rate, signal-to-noise ratio.
  • a communication device may be the sender device in the third aspect or any possible implementation of the third aspect, or a module applied to the sender device, such as a chip. Or chip system.
  • the communication device includes a transceiver and a processor; the processor is used to obtain the parameter value of the communication system; the processor is also used to determine according to the parameter value that the first order of subcarrier interference is greater than 1 and the phase tracking reference signal When the number of ports is greater than 1, the pattern of the phase tracking reference signal is determined to be a block pilot.
  • the block pilot includes at least one non-zero power resource unit and at least two zero power resource units; wherein, multiple phase tracking reference signals
  • the phase tracking reference signal of any two ports in the port has at least one zero-power resource unit overlap, and at least one non-zero-power resource unit is orthogonal, and at least one zero-power resource unit is orthogonal;
  • the processor is also used for
  • the pilot pattern maps the phase tracking reference signal to the orthogonal frequency division multiplexing symbols; and the transceiver is used to transmit the orthogonal frequency division multiplexing symbols.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2) +M, where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the processor is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processor is further configured to determine the first order of sub-carrier interference according to the sub-carrier interference
  • the first order number determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the processor is further configured to obtain a preset relationship between the parameter value set of the communication system and the multiplexing mode of the phase tracking reference signal port, where each The parameter value set of the communication system includes the value range of the parameter of the at least one communication system; the processor is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and processing The device is also used to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is an access network device: a transceiver, and is also used to receive first information reported by a terminal device, and the first information includes at least one of the following information: multiple The multiplexing mode of the phase tracking reference signal port, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, the first order of subcarrier interference; and the processor, which is also used for According to the first information, the multiplexing mode of the multiple phase tracking reference signal ports is determined.
  • the processor is further configured to predefine, preconfigure or prestore at least one communication system parameter value set and multiple phase tracking reference signal port multiplexing mode The preset relationship.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, coding Bit rate, signal-to-noise ratio.
  • a communication device may be the sending end device in the third aspect or any possible implementation of the third aspect, or a module applied to the sending end device, such as a chip or Chip system.
  • the communication device includes at least one processor, configured to execute the foregoing third aspect or the method in any possible implementation manner of the third aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the foregoing third aspect or a method in any possible implementation manner of the third aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the third aspect or the method in any possible implementation manner of the third aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the third aspect or the method in any possible implementation manner of the third aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the foregoing third aspect or the method in any possible implementation manner of the third aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium is provided with a computer program stored thereon, and when the computer program is executed by a communication device, the communication device executes the foregoing third aspect or any possible implementation manner of the third aspect In the method.
  • a computer program product storing a computer program is provided.
  • a communication device executes the third aspect or the method in any possible implementation manner of the third aspect.
  • a communication device for executing the foregoing fourth aspect or any possible implementation method of the fourth aspect.
  • the communication device may be the receiving end device in the foregoing fourth aspect or any possible implementation manner of the fourth aspect, or a module applied to the receiving end device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; a transceiver module for receiving orthogonal frequency division multiplexing symbols and mapping on orthogonal frequency division multiplexing symbols There is a phase tracking reference signal; the processing module is used to obtain the parameter value of the communication system; the processing module is also used to determine according to the parameter value that the first order of subcarrier interference is greater than 1, and the number of ports of the phase tracking reference signal is greater than 1, It is determined that the pattern of the phase tracking reference signal is a block pilot.
  • the block pilot includes at least one non-zero power resource unit and at least two zero power resource units; wherein, any two of the multiple phase tracking reference signal ports There is at least one zero-power resource unit overlap in the phase tracking reference signal, and at least one non-zero-power resource unit is orthogonal, and at least one zero-power resource unit is orthogonal; and the processing module is further configured to obtain The phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2 )+M, where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the processing module is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processing module is further configured to determine the first order of sub-carrier interference according to the sub-carrier
  • the first order of interference determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the processing module is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, where: The parameter value set of each communication system includes the value range of the parameter of at least one communication system; the processing module is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and The processing module is further configured to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is a terminal device; the transceiver module is also used to report first information, and the first information includes at least one of the following information: multiple phase tracking reference signal ports The multiplexing mode, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, and the first order of subcarrier interference.
  • the processing module is also used to pre-define, pre-configure or pre-store at least one communication system parameter value set and multiplexing of multiple phase tracking reference signal ports The preset relationship of the mode.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, Encoding rate, signal-to-noise ratio.
  • a communication device is provided.
  • the communication device may be the receiving end device in the foregoing fourth aspect or any possible implementation manner of the fourth aspect, or a module applied to the receiving end device, such as Chip or chip system.
  • the communication device includes a transceiver and a processor; the transceiver is used to receive orthogonal frequency division multiplexing symbols and the phase tracking reference signal is mapped on the orthogonal frequency division multiplexing symbols; the processor is used to obtain the parameters of the communication system The processor is also used to determine, according to the parameter value, that the first order of sub-carrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, determining that the pattern of the phase tracking reference signal is a block pilot.
  • the frequency includes at least one non-zero power resource unit and at least two zero power resource units; wherein the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero power resource unit overlap, and At least one non-zero power resource unit is orthogonal, and at least one zero power resource unit is orthogonal; and the processor is further configured to obtain the phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol according to the pilot pattern.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2 )+M, where N is the first order of subcarrier interference, M is any integer greater than or equal to 1, and ceil represents rounding up.
  • the processor is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system; and the processor is further configured to determine the first order of sub-carrier interference according to the sub-carrier
  • the first order of interference determines the multiplexing mode of multiple phase tracking reference signal ports.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, and non-orthogonal multiplexing.
  • the processor is further configured to obtain a preset relationship between the parameter value set of the communication system and the multiplexing mode of the phase tracking reference signal port, wherein:
  • the parameter value set of each communication system includes the value range of the parameter of at least one communication system;
  • the processor is further configured to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processor is further configured to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set to the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is a terminal device; the transceiver is also used to report first information, and the first information includes at least one of the following information: multiple phase tracking reference signal ports The multiplexing mode, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, and the first order of subcarrier interference.
  • the processor is further configured to predefine, preconfigure or prestore at least one communication system parameter value set and multiplexing of multiple phase tracking reference signal ports The preset relationship of the mode.
  • the parameters of the communication system include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme, modulation order, Encoding rate, signal-to-noise ratio.
  • a communication device is provided.
  • the communication device may be the receiving end device in the foregoing fourth aspect or any possible implementation manner of the fourth aspect, or a module applied to the receiving end device, such as a chip Or chip system.
  • the communication device includes at least one processor, configured to execute the foregoing fourth aspect or the method in any possible implementation manner of the fourth aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the foregoing fourth aspect or a method in any possible implementation manner of the fourth aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the foregoing fourth aspect or the method in any possible implementation manner of the fourth aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the method in the fourth aspect or any possible implementation of the fourth aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the foregoing fourth aspect or the method in any possible implementation manner of the fourth aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a communication device, the communication device executes the fourth aspect or any possible implementation of the fourth aspect. The method in the way.
  • a computer program product storing a computer program is provided.
  • a communication device executes the foregoing fourth aspect or any possible implementation method of the fourth aspect.
  • a communication device for executing the foregoing fifth aspect or any possible implementation method of the fifth aspect.
  • the communication device may be the sender device in the fifth aspect or any possible implementation of the fifth aspect, or a module applied to the sender device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; and a processing module, configured to: if the first order of subcarrier interference is greater than or equal to the first order threshold, Determine the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, where the first demodulation reference signal port and the second demodulation reference signal port are frequency division multiplexed , The signals on the adjacent resource units in the first signal sequence within the first bandwidth range are the same, and the signals on the adjacent resource units in the second signal sequence within the second bandwidth range are opposite; the transceiver module is used for sending First indication information, the first indication information is used to indicate the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port; and the transceiver module is also used to The demodulation reference signal port sends the first signal sequence, and the second demodulation reference
  • the communication device is an access network device; the transceiver module is also used to receive the first message sent by the sending end device, and the first message indicates the suggestion of the sending end device The first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, and/or the first order of subcarrier interference suggested by the transmitting end device.
  • the processing module is further configured to obtain the preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal; the processing module, further Used to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processing module is also used to select the demodulation reference corresponding to the determined parameter value set according to the preset relationship
  • the signal sequence of the signal is a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port.
  • the processing module is further used to obtain the parameter value of the communication system; and the processing module is further used to determine the sub-carrier interference value according to the parameter value of the communication system.
  • a communication device is provided.
  • the communication device may be the sender device in the fifth aspect or any possible implementation of the fifth aspect, or a module applied to the sender device, for example Chip or chip system.
  • the communication device includes a transceiver and a processor; the processor is configured to determine the first signal sequence and the first signal sequence corresponding to the first demodulation reference signal port if the first order of subcarrier interference is greater than or equal to the first order threshold.
  • the second signal sequence corresponding to the second demodulation reference signal port where the first demodulation reference signal port and the second demodulation reference signal port are frequency-division multiplexed, and adjacent resources in the first signal sequence are within the first bandwidth range
  • the signals on the units are the same, and the signals on the adjacent resource units in the second signal sequence within the second bandwidth range are opposite;
  • the transceiver is used to send the first indication information, and the first indication information is used to indicate the first demodulation
  • the reference signal port is tuned to send the second signal sequence.
  • the communication device is an access network device; the transceiver is also used to receive the first message sent by the sending end device, and the first message indicates the suggestion of the sending end device The first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, and/or the first order of subcarrier interference suggested by the transmitting end device.
  • the processor is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal; the processor, and It is used to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processor is further used to select the demodulation reference corresponding to the determined parameter value set according to the preset relationship
  • the signal sequence of the signal is a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port.
  • the processor is further configured to obtain the parameter value of the communication system; and the processor is further configured to determine the subcarrier interference value according to the parameter value of the communication system First order.
  • a communication device may be the sender device in any possible implementation manner of the fifth aspect or the fifth aspect, or a module applied to the sender device, such as a chip Or chip system.
  • the communication device includes at least one processor, configured to execute the foregoing fifth aspect or the method in any possible implementation manner of the fifth aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the foregoing fifth aspect or the method in any possible implementation manner of the fifth aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the above-mentioned fifth aspect or the method in any possible implementation manner of the fifth aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the method in the fifth aspect or any possible implementation manner of the fifth aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the foregoing fifth aspect or the method in any possible implementation manner of the fifth aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device executes the above-mentioned fifth aspect or any possible implementation manner of the fifth aspect In the method.
  • a computer program product storing a computer program is provided.
  • a communication device executes the method in the fifth aspect or any possible implementation manner of the fifth aspect.
  • a communication device for executing the foregoing sixth aspect or any possible implementation method of the sixth aspect.
  • the communication device may be the receiving end device in the foregoing sixth aspect or any possible implementation manner of the sixth aspect, or a module applied to the receiving end device, such as a chip or a chip system.
  • the communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • the communication device includes: a transceiver module and a processing module; The first signal sequence corresponding to the reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, where the first demodulation reference signal port and the second demodulation reference signal port are frequency-division multiplexed, in the first bandwidth
  • the signals on the adjacent resource units in the first signal sequence within the range are the same, and the signals on the adjacent resource units in the second signal sequence within the second bandwidth range are opposite;
  • the transceiver module is also used for the first demodulation
  • the reference signal port receives the first signal sequence, and receives the second signal sequence at the second demodulation reference signal port; and a processing module, which is configured to eliminate the second signal sequence to the first signal sequence based on the second signal sequence. Interference, obtain the first demodulation reference signal, and based on the first signal sequence, eliminate the inter-subcarrier interference of the first signal sequence to the second signal sequence, and obtain the second demodul
  • the communication device is a terminal device; the transceiver module is also used to send a first message, the first message indicating that the terminal device suggests that the first demodulation reference signal port corresponds to The first signal sequence and the second signal sequence corresponding to the second demodulation reference signal port, and/or the first order of subcarrier interference suggested by the terminal device.
  • the processing module is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal; the processing module further Used to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processing module is also used to select the demodulation reference corresponding to the determined parameter value set according to the preset relationship
  • the signal sequence of the signal is a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port.
  • the processing module is further used to obtain the parameter value of the communication system; and the processing module is further used to determine the first subcarrier interference value according to the parameter value of the communication system. First order.
  • a communication device is provided.
  • the communication device may be the receiving end device in the sixth aspect or any possible implementation of the sixth aspect, or a module applied to the receiving end device, such as Chip or chip system.
  • the communication device includes a transceiver and a processor; the transceiver is used to receive first indication information, and the first indication information is used to indicate the first signal sequence and the second demodulation reference signal corresponding to the first demodulation reference signal port The second signal sequence corresponding to the port, where the first demodulation reference signal port and the second demodulation reference signal port are frequency-division multiplexed, and the signals on adjacent resource units in the first signal sequence are both within the first bandwidth range.
  • the transceiver is also used to receive the first signal sequence at the first demodulation reference signal port, and to receive the first signal sequence at the second demodulation reference signal port.
  • the signal port receives the second signal sequence; and the processor is configured to eliminate the inter-subcarrier interference of the second signal sequence to the first signal sequence based on the second signal sequence to obtain the first demodulation reference signal, and based on the first signal sequence , Eliminate the inter-subcarrier interference of the first signal sequence to the second signal sequence, and obtain the second demodulation reference signal.
  • the communication device is a terminal device; the transceiver is also used to send a first message, the first message indicating that the terminal device suggests that the first demodulation reference signal port corresponds to The first signal sequence and the second signal sequence corresponding to the second demodulation reference signal port, and/or the first order of subcarrier interference suggested by the terminal device.
  • the processor is further configured to obtain a preset relationship between a parameter value set of at least one communication system and a signal sequence of the demodulation reference signal; the processor, and It is used to determine the parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system; and the processor is further used to select the demodulation reference corresponding to the determined parameter value set according to the preset relationship
  • the signal sequence of the signal is a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port.
  • the processor is further configured to obtain the parameter value of the communication system; and the processor is further configured to determine the sub-carrier interference value according to the parameter value of the communication system First order.
  • a communication device is provided.
  • the communication device may be the receiving end device in the sixth aspect or any possible implementation of the sixth aspect, or a module applied to the receiving end device, such as a chip Or chip system.
  • the communication device includes at least one processor, configured to execute the foregoing sixth aspect or the method in any possible implementation manner of the sixth aspect.
  • the communication device further includes a memory coupled with the at least one processor, and the at least one processor is configured to execute the above-mentioned sixth aspect or the method in any possible implementation manner of the sixth aspect.
  • the memory is used to store program instructions and data.
  • the memory is coupled with the at least one processor, and the at least one processor can call and execute the program instructions stored in the memory for executing the above-mentioned sixth aspect or the method in any possible implementation manner of the sixth aspect.
  • the communication device further includes a communication interface, and the communication interface is used for the communication device to communicate with other devices.
  • the communication interface is a transceiver, an input/output interface, or a circuit.
  • the communication device includes: at least one processor and a communication interface, configured to execute the method in the sixth aspect or any possible implementation of the sixth aspect, specifically including: the at least one The processor uses the communication interface to communicate with the outside; the at least one processor is used to run a computer program, so that the communication device executes the above-mentioned sixth aspect or the method in any possible implementation manner of the sixth aspect.
  • the exterior may be an object other than the processor, or an object other than the communication device.
  • the communication device is a chip or a chip system.
  • 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 can also be embodied as a processing circuit or a logic circuit.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device executes the sixth aspect or any possible implementation of the sixth aspect. The method in the way.
  • a computer program product storing a computer program is provided.
  • the communication device executes the method in the sixth aspect or any possible implementation manner of the sixth aspect.
  • Figure 1 is a schematic diagram of the power spectral density of phase noise at different frequency points
  • Fig. 2 is a schematic diagram of the influence of different phase noises on the received signal in the frequency domain
  • Figure 3 is a schematic diagram of the influence of phase noise CPE and ICI on the received signal under the same power spectral density
  • Figure 4 is a schematic diagram of phase noise signal models of different sources
  • Fig. 5 is a schematic diagram of the configuration patterns of three exemplary PTRS
  • Figure 6 is a schematic diagram of phase noise estimation based on a block zero-power pilot scheme
  • FIG. 7 is a schematic diagram of the architecture of a communication system to which an embodiment of the application is applicable.
  • FIG. 8 is a schematic diagram of internal function modules of a communication system to which an embodiment of the application is applicable;
  • FIG. 9 is a schematic flowchart of a method for setting a reference signal according to an embodiment of the application.
  • 10a to 10c are schematic diagrams of three exemplary DMRS pilot patterns with different frequency domain densities
  • FIG. 11 is a schematic flowchart of another method for setting a reference signal according to an embodiment of the application.
  • Fig. 12 is a schematic diagram of semi-orthogonal multiplexing of multiple PTRS ports
  • FIG. 13 is a schematic diagram of a pattern of multiple PTRS ports in one block when the first order of ICI is 3 and 5;
  • 14 is a schematic diagram of another pattern of multiple PTRS ports in one block when the first order of ICI is 3 and 5;
  • FIG. 15 is a schematic diagram of non-orthogonal multiplexing of multiple PTRS ports
  • Fig. 16 is a schematic diagram of orthogonal multiplexing of multiple PTRS ports
  • FIG. 17 is a schematic flowchart of another method for setting a reference signal according to an embodiment of the application.
  • FIG. 18 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 19 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 20 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 21 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 22 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 23 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 24 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • OFDM orthogonal frequency division multiplexing
  • the matrix formed by E k is the equivalent circulant matrix of the time domain phase noise in the frequency domain.
  • the original signal on the sub-carrier is rotated/scaled, that is, the influence of E 0 in the above formula. Since this value has nothing to do with the sub-carrier number, That is, the rotation/scaling of the original signal on all sub-carriers is the same, so it is called CPE.
  • the second summation formula in the above formula 2 is the inter-carrier interference E k introduced by phase noise, which can be considered as the inter-sub-carrier interference coefficient, k ⁇ 0.
  • E 0 can also be regarded as the interference coefficient of the sub-carrier to the sub-carrier itself.
  • the base station can have multiple antenna panels, and the phase noise of each antenna panel is different, or multiple transmission receiving points (TRP) and the same terminal device can transmit multiple signals.
  • the phase noise of multiple transmission and receiving points is also different, that is, different sources of phase noise at the transmitting end and/or phase noise at the receiving end are more common in current multiple input multiple output (MIMO) communication scenarios.
  • MIMO current multiple input multiple output
  • a 2x2 MIMO signal model of different sources at the transmitting end will be used as an example to illustrate the problems of the existing technical solution and the technical solution of the present application. As shown in Figure 4, the transmitter has different sources and the receiver has the same source. At this time, the signal model can be written as:
  • Column matrix H ij is a diagonal matrix (channel matrix)
  • the k-th element on the diagonal is the channel from the j-th transmitting antenna (channel) to the i-th receiving antenna (channel) on the k-th subcarrier
  • r is receive signal.
  • D 0 represents the CPE of phase noise at the receiving end
  • E 1,0 , E 2,0 represents the CPE of phase noise at the transmitting end
  • Each variable is a scalar (only size, no direction), representing the transmitted signal, received signal, noise, and channel on one of the sub-carriers. It can be seen that after the received signal is equalized based on the channel on a certain sub-carrier, combined with their respective The transmitted signal can directly estimate the CPE introduced by the phase noise of the two channels.
  • the current phase tracking reference signal (PTRS) configuration can support the estimation of the CPE introduced by the phase noise of the two channels.
  • Equation 3 can be simplified to the following Equation 5:
  • Figure 5 illustrates the configuration patterns of three PTRS.
  • the estimated CPE and/or ICI can depend on the scattered pilot scheme shown in Figure 5(a), or rely on the scheme shown in Figure 5(b).
  • the block-shaped cyclic pilot scheme shown in the figure or depends on the block-shaped zero-power pilot scheme as shown in (c) in FIG. 5.
  • the frequency domain interval of every two adjacent pilots in the scattered pilot scheme shown in (a) in FIG. 5 is N REs
  • the block cyclic pilot scheme shown in (b) in FIG. 5 The number of pilots in each block is M REs
  • the number of pilots in each block of the block zero-power pilot scheme shown in (c) in FIG. 5 is M REs.
  • N and M are positive integers.
  • the pilot pattern based on ICI estimation of block zero-power pilots the pilots in a block are concentrated on a certain frequency resource, the difference is that the block pilots except The middle resource element (resource element, RE) has non-zero power pilots, and other REs have zero-power pilots, that is, all other REs are vacant and do not transmit any signal.
  • RE resource element
  • the non-zero-power RE transmitted signal p has a non-negligible effect on the ICI of other sub-carriers, and the non-negligible ICI coefficients are E -1 , E -2 , E 1 , E 2 (shown by the solid arrow in the figure); E -3 , E 3 , and other ICI coefficients cause ICI influence to be negligible (shown by the dashed arrow in the figure); in the same way, the data sub-carrier affects the PTRS
  • the embodiment of the application provides a reference signal setting method and device.
  • the frequency domain density of the demodulation reference signal is dynamically determined according to the parameter value of the current communication system, and the parameter value of the communication system is compared with the parameter value of the current communication system.
  • the non-negligible sub-carrier interference is related to the order, so that the demodulation reference signal can be accurately set, reducing the influence of inter-sub-carrier interference on channel estimation, and improving the accuracy of channel estimation.
  • the embodiment of the present application also provides a reference signal setting method and device.
  • the phase tracking reference is determined according to the parameter value of the current communication system.
  • the signal pattern is a block-shaped pilot.
  • the phase tracking reference signals of at least two of the multiple phase tracking reference signal ports are semi-orthogonally multiplexed, so that the receiving end can use the semi-orthogonal multiplexed phase tracking reference signal to subtract While the PTRS overhead is small, the inter-subcarrier interference can be accurately estimated and compensated.
  • the embodiments of the present application also provide a reference signal setting method and device.
  • the transmitting end device transmits a specified signal sequence at the two demodulation reference signal ports of the frequency division, and the specified signal sequence makes The influence of multi-channel phase noise inter-sub-carrier interference received by the demodulation reference signal port on each sub-carrier can be cancelled by the operation of the receiving end equipment, thereby reducing the influence of inter-sub-carrier interference on channel estimation and improving channel estimation. accuracy.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the communication system includes a non-standalone (NSA) 5G mobile communication system or a standalone (SA) 5G mobile communication system.
  • SA standalone
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth-generation mobile communication system.
  • the communication system can also be a public land mobile network (PLMN) network, a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, and a device-to-device (D2D) communication system.
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine-to-machine
  • D2D device-to-device
  • IoT Internet of Things
  • the terminal equipment (terminal equipment) in the embodiments of the present application may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a relay station, a remote station, a remote terminal, a mobile device, a user terminal (user terminal).
  • terminal terminal
  • wireless communication equipment user agent, user device, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (wireless local loop, WLL) station, Personal digital assistant (PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of PLMN
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA Personal digital assistant
  • handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices
  • terminal devices in the future 5G network or future evolution of PLMN The terminal devices in the Internet of Vehicles or the terminal devices in the future Internet of Vehicles, etc., are not limited in this embodiment of the present application.
  • the terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, and a wireless terminal in unmanned driving.
  • Wireless terminals wireless terminals, wireless terminals in remote surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • wearable devices can also be referred to as wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, Gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device can also be a terminal device in the IoT system.
  • IoT is an important part of the development of information technology in the future. Its main technical feature is to connect objects to the network through communication technology to realize man-machine Interconnection, an intelligent network of interconnection of things.
  • the IoT technology can achieve massive connections, deep coverage, and power saving of the terminal through, for example, narrowband (NB) technology.
  • NB narrowband
  • the terminal equipment may also include sensors such as smart printers, train detectors, gas stations, etc.
  • the main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from access network equipment, and Send electromagnetic waves to transmit uplink data to the access network equipment.
  • the access network device in the embodiment of the present application may be any communication device with a wireless transceiving function that is used to communicate with a terminal device.
  • the access network equipment includes, but is not limited to: evolved node B (evolved node B, eNB), baseband unit (BBU), access point (access point in wireless fidelity, WIFI) system, AP), wireless relay node, wireless backhaul node, transmission point (TP) or TRP, etc.
  • the access network device may also be a gNB, TRP, or TP in the 5G system, or one or a group of (including multiple antenna panels) antenna panels of the base station in the 5G system.
  • the access network device may also be a network node that constitutes a gNB or TP, such as a BBU, or a distributed unit (DU).
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes 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
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU. It can be understood that the access network device may be a device including one or more of CU nodes, DU nodes, and AAU nodes.
  • the access network device and the terminal device in the embodiment of the present application may communicate through a licensed spectrum, or communicate through an unlicensed spectrum, or communicate through a licensed spectrum and an unlicensed spectrum at the same time.
  • the access network equipment and terminal equipment can communicate through the frequency spectrum below 6 gigahertz (gigahertz, GHz), communicate through the frequency spectrum above 6 GHz, and communicate using the frequency spectrum below 6 GHz and the frequency spectrum above 6 GHz at the same time.
  • the embodiment of the present application does not limit the spectrum resource used between the access network device and the terminal device 101.
  • the terminal equipment and access network equipment in the embodiments of the present application can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on the water; they can also be deployed on airborne aircraft, balloons, and man-made aircraft. On the satellite.
  • the embodiments of the present application do not limit the application scenarios of terminal equipment and access network equipment.
  • the terminal device or the access network device includes 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 includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in this embodiment of the present application may be a terminal device or an access network device, or a functional module in the terminal device or the access network device that can call and execute the program.
  • the related functions of the terminal device and the access network device in the embodiments of this application can be implemented by one device, or by multiple devices, or by one or more functional modules in one device.
  • the application embodiment does not specifically limit this. It is understandable that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (for example, a cloud platform) Virtualization function.
  • the communication system may include at least one access network device 100 (only one is shown) and one or more user equipment 200 connected to the access network device 100.
  • the sending end device in this application may be the above-mentioned access network device, and the receiving end device may be the above-mentioned terminal device; the sending end device in this application may be the above-mentioned terminal device, and the receiving end device may be the above-mentioned access network device.
  • FIG. 8 it is a schematic diagram of internal function modules of a communication system to which the embodiments of this application are applied.
  • the communication system includes a sending end device and a receiving end device.
  • the sending end device when it sends a data bit stream, it needs to go through coding, symbol modulation, data mapping, DMRS sequence generation, DMRS mapping, PTRS sequence generation, and PTRS mapping, and then send it out through the channel, and the sent out mapping
  • the data, DMRS, PTRS, and other signals may be pre-coded signals.
  • the receiving end device After receiving the signal through the channel, the receiving end device demaps the signal, performs channel estimation based on the received DMRS, and performs CPE and/or ICI estimation based on the received PTRS, using the estimated channel, CPE and/or ICI performs equalization, CPE and/or ICI compensation on the received signal, where equalization and CPE and/or ICI compensation are in no order, and then symbol demodulation and decoding are performed to obtain a data bit stream.
  • the embodiments of the present application mainly relate to the sequence generation of DMRS, DMRS mapping, PTRS sequence generation, PTRS mapping of the above-mentioned transmitting end device, and the signal demapping of the receiving end device, channel estimation according to the received DMRS, and receiving The CPE and/or ICI estimation and other processes are performed on the PTRS.
  • FIG. 9 it is a schematic flowchart of a method for setting a reference signal according to an embodiment of this application.
  • the method may include the following steps:
  • the transmitting end device obtains a parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference.
  • FIGS 10a to 10c illustrate schematic diagrams of three DMRS pilot patterns with different frequency domain densities.
  • FIG 10a it is a schematic diagram of a type 1 DMRS pilot pattern.
  • DMRS port 0/1 occupies even-numbered sub-carriers
  • DMRS port 2/3 occupies odd-numbered sub-carriers (the sub-carrier number starts from 0).
  • Each DMRS port is distinguished by different orthogonal cover codes (OCC), that is, the frequency domain density of each DMRS port is fixed at 1/2, that is, one DMRS symbol is mapped for every two REs.
  • OCC orthogonal cover codes
  • one of the DMRS ports occupies subcarriers 0#, 4#, and 8#
  • the other DMRS port occupies subcarriers 2#, 6#, and 10#.
  • Carrier Among them, # represents the number, sequence number or index of the sub-carrier.
  • the frequency domain density of each DMRS port is 1/4, that is, one DMRS symbol is mapped for every four REs.
  • one of the DMRS ports occupies subcarriers 0# and 6#
  • the other DMRS port occupies subcarriers 3# and 9#.
  • the frequency domain density of each DMRS port is 1/6, that is, one DMRS symbol is mapped for every six REs.
  • the order corresponding to the ICI is called the first order of the ICI
  • the first order of the ICI is the number of ICI coefficients that have a non-negligible impact on channel estimation, where the non-negligible ICI coefficients can be understood as the magnitude or power greater than or equal to the first A threshold ICI coefficient.
  • the parameters of the communication system that affect the ICI order to be considered include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, modulation and coding scheme (MCS), modulation order Number, coding rate, signal-to-noise ratio, number of DMRS.
  • MCS modulation and coding scheme
  • the phase noise model and carrier frequency determine the severity of the phase noise itself, that is, the two can be regarded as the inherent properties of phase noise; while the scheduling bandwidth and sub-carrier spacing determine the degree of influence of phase noise on the signal, and the scheduling bandwidth The larger the value, the greater the influence of phase noise on the signal, the larger the subcarrier spacing, the smaller the influence of phase noise on the signal; and MCS (modulation order, coding rate) determines the ability of the signal to carry phase noise, MCS( The higher the modulation order, coding rate), the weaker the anti-phase noise ability, or under the same phase noise influence, such as the same phase noise ICI, the higher the MCS (modulation order, coding rate), due to phase noise The ICI caused by noise deteriorates the data demodulation performance more seriously. In addition, there is the signal-to-noise ratio that affects the accuracy of the ICI estimation. The larger the SNR, the higher the ICI order that can achieve a certain estimation accuracy.
  • the sender device when setting the DMRS, the sender device needs to determine whether ICI can be ignored. Therefore, the sending end device needs to obtain the parameter value of the communication system first.
  • the sending end device can use the existing technology to obtain the parameter value of the above-mentioned communication system.
  • the first order of ICI can be determined. Specifically, according to the relationship between the ICI order shown in Table 1 and the parameters of the communication system, it can be determined that the ICI is a non-negligible ICI, so that the ICI order is determined to be the first order of the ICI.
  • the transmitting end device determines the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system.
  • the transmitter device can dynamically determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system according to the parameter value of the communication system .
  • the frequency domain density of the demodulation reference signal can be determined according to the first order of subcarrier interference.
  • the greater the first order of subcarrier interference the greater the frequency of the demodulation reference signal.
  • one method is to introduce the transmitted signal on the subcarrier j (j ⁇ k) of the ICI to the received signal on the subcarrier k where the DMRS is located. If it is assumed that the influence of the third-order phase noise ICI on the DMRS channel estimation can not be ignored, the influence of the third-order phase noise ICI on the DMRS channel estimation can be ignored, that is, the subcarrier k+1 and subcarrier k-1 are due to the phase noise The interference of sub-carrier k cannot be ignored, and the interference of sub-carrier k ⁇ m (m>1) to sub-carrier k due to phase noise can be ignored.
  • the subcarrier q 2 and subcarrier q 2 ⁇ 1 corresponding to the DMRS on the Lx layer should be left blank; correspondingly, on the Lx layer, the subcarrier corresponding to the DMRS on the L0 layer Carrier q 1 and sub-carrier q 1 ⁇ 1 should also be left blank, so the frequency domain density of DMRS is 1/4, that is, one DMRS is mapped to every four REs on each layer. It should be noted that the frequency domain density of DMRS refers to the frequency domain density on a physical layer.
  • phase noise ICI of the fifth order or less has a non-negligible influence on the DMRS channel estimation
  • phase noise ICI of the fifth order or higher has a negligible influence on the DMRS signal estimation
  • determining the frequency domain density of the demodulation reference signal according to the first order of subcarrier interference is not limited to the above method.
  • the protocol may be pre-defined, or the access network device may be pre-configured before S102, or the sender device may pre-store at least one preset relationship between the parameter value set of the communication system and the frequency domain density of the DMRS. Therefore, the transmitting end device can determine the frequency domain density of the DMRS according to the above-mentioned preset relationship.
  • the parameter value set of a communication system may include the value range of one or more communication system parameters.
  • a (i, j) can be an empty set, or a full set of parameter j, or a specific value of parameter j, or a value range of parameter j.
  • the preset relationship can be: when the parameter value is an element in the set S 1 , the DMRS frequency domain density is 1/2; when the parameter value is the set when the elements S 2, the frequency domain DMRS density is 1/4; when the value of the parameter elements in the set S 3, a frequency domain DMRS density is 1/6; if (type 1) the number of ports for the frequency division of the DMRS When 1, the preset relationship can be: when the parameter value is an element in set S 1 or an element in set S 2 , the DMRS frequency domain density is 1/2; when the parameter value is an element in set S 3 When the frequency domain density of DMRS is 1/4. That is, the more frequency-divided ports, the lower the frequency domain density of the DMRS under the same ICI order
  • the transmitting end device can obtain the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, where the parameter value set of each communication system includes the value of the parameter of at least one communication system Range; then, according to the parameter value of at least one communication system, determine the parameter value set corresponding to the parameter value of the at least one communication system; the transmitting end device selects the demodulation reference signal corresponding to the determined parameter value set according to the preset relationship
  • the frequency domain density is the frequency domain density of the demodulation reference signal. It can be understood that the DMRS frequency domain density in the above example is only an example, and it can actually be other values.
  • the frequency domain density of the DMRS can be set to a minimum value, which can be fixed at 1/6 or 1/8, or determined by channel conditions. For example, when the channel is flat, the minimum value is smaller, such as 1/8; when the channel is not flat, the minimum value is larger, such as 1/6.
  • the channel flatness can be determined by the subband-level channel quality indicator (CQI) measured and fed back by the UE, or by the subband-level precoding matrix indicator (precoding matrix, PMI), or it can be determined by the channel sounding reference signal (sounding reference signal). Reference signal, SRS) The measured channel is determined.
  • other parameters are fixed parameters (phase noise model) or parameters that need to be clearly specified in scheduling (carrier frequency, subcarrier spacing, scheduling bandwidth, MCS, modulation order, coding rate, DMRS port
  • phase noise model phase noise model
  • parameters that need to be clearly specified in scheduling carrier frequency, subcarrier spacing, scheduling bandwidth, MCS, modulation order, coding rate, DMRS port
  • the parameter set of the communication system specified in the protocol, predefined or pre-configured
  • the transceiver can determine the frequency domain density of the DMRS through the specified or predefined or pre-configured relationship and the actual parameters in the current scheduling. At this time, no additional signaling is required to indicate the current DMRS frequency domain density.
  • the access network device can send instruction information to the terminal device to indicate the current DMRS frequency domain density.
  • the access network device may also determine the ICI order or DMRS frequency domain density, and The determined ICI order or DMRS frequency domain density is indicated to the terminal device.
  • the sending end device can not only obtain the parameters of the actual communication system, and determine the frequency domain density of the DMRS according to the parameters of the actual communication system, but also receive the first reported by the UE.
  • the first information includes at least one of the following information: the frequency domain density of the DMRS recommended by the UE, the preset relationship between the parameter value set of at least one communication system and the frequency domain density of the at least one DMRS, and the first subcarrier interference recommended by the UE Order. Therefore, when determining the frequency domain density of the DMRS, the transmitting end device may refer to the above first information to configure a more accurate frequency domain density of the DMRS, optimize the channel estimation accuracy, and maximize the spectrum efficiency.
  • the sender device may also compare the parameter value set of at least one communication system with the frequency domain density of at least one DMRS.
  • the corresponding relationship information is configured to the terminal device, and the configuration signaling can pass at least one of the following: downlink control information (DCI), media access control (MAC), radio resource control (RRC) ) Signaling.
  • DCI downlink control information
  • MAC media access control
  • RRC radio resource control
  • the terminal device may also receive at least one set of parameter values of the communication system configured by the access network device before determining the frequency domain density of the DMRS according to the parameters of the actual communication system
  • the configuration signaling may pass at least one of the following: DCI, MAC, and RRC.
  • the transmitting end device maps the demodulation reference signal to the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal.
  • the transmitting end device After determining the frequency domain density of the DMRS or the frequency domain interval of the DMRS, the transmitting end device can map the DMRS to the OFDM symbol.
  • the sending end device sends an orthogonal frequency division multiplexing symbol.
  • the receiving end device receives the orthogonal frequency division multiplexing symbol, and the demodulation reference signal is mapped on the orthogonal frequency division multiplexing symbol.
  • the receiving end device obtains the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference.
  • the receiving end device can obtain the parameter values of the communication system. For details, refer to the description of step S101.
  • the receiving end device determines the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system.
  • the receiving end device can determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system. For details, refer to the description of step S102.
  • the receiving end device obtains the demodulation reference signal on the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal.
  • the receiving end device After the receiving end device determines the frequency domain density of the DMRS, the position of the DMRS can be determined, and therefore, the DMRS on the OFDM symbol can be obtained. Therefore, channel estimation can be performed based on the DMRS.
  • the frequency domain density of the demodulation reference signal is dynamically determined according to the parameter value of the current communication system.
  • the non-negligible sub-carrier interference is related to the order, so that the demodulation reference signal can be accurately set, reducing the influence of inter-sub-carrier interference on channel estimation, and improving the accuracy of channel estimation.
  • FIG. 11 it is a schematic flowchart of yet another reference signal setting method provided by an embodiment of this application.
  • the method may include the following steps:
  • S201 The sending end device obtains the parameter value of the communication system.
  • the PTRS pattern can adopt the three PTRS patterns shown in FIG. 5. And if only CPE needs to be estimated, only one PTRS port can be configured, PTRS port 0 can use the above three PTRS patterns, and the estimated CPE is shared on multiple layers (L0 and L1). If you need to estimate ICI, you can configure multiple PTRS ports, and multiple PTRS ports can be non-orthogonally multiplexed, that is, PTRS port 0 and PTRS port 1 are mapped on the same time-frequency resource, and after the data is equalized, the phases are estimated separately ICI introduced by noise is compensated. Multiple PTRS ports for non-orthogonal multiplexing can also use the above three PTRS patterns.
  • phase noise has different sources
  • using the above PTRS scheme after compensating the CPE introduced by the phase noise, there is still residual ICI, which can be equivalent to noise with a certain signal-to-noise ratio, and the equivalent signal-to-noise ratio will vary.
  • the phase noise power spectrum density increases and decreases. Therefore, in high-order and high-bit rate scenarios that require high demodulation SNR, the residual ICI equivalent noise power is likely to exceed the demodulation SNR. Noise power. Therefore, the impact of the ICI introduced by the phase noise on the data demodulation performance cannot be estimated and compensated by the current pilot design.
  • the number of ICI coefficients that cannot be ignored or needs to be considered is greater than 1 (in this embodiment, the number of ICI coefficients is called the first ICI.
  • the first-order number it is necessary to determine the multiplexing mode of the PTRS or the pattern of the PTRS.
  • the first order of the ICI is the number of ICI coefficients that have a non-negligible effect on data demodulation, where the non-negligible ICI coefficient can be understood as the amplitude or power greater than or equal to The ICI coefficient of the threshold.
  • the threshold may be different from the first threshold of the DMRS mentioned above.
  • the "ICI's first order” which is suitable for both channel estimation and data demodulation, for the sake of brevity in this application, the "ICI's first order” applicable to both is described as “ICI” "The first order of ",” no longer use “ICI the first order” or “ICI second order” to distinguish between the two.
  • the parameters of the communication system that affect the ICI order to be considered include at least one of the following parameters: phase noise model, carrier frequency, subcarrier spacing, scheduling bandwidth, MCS, modulation order, coding rate, and SNR.
  • phase noise model For the relationship between the parameter and the ICI order, refer to the description of the foregoing embodiment.
  • the sender device needs to determine whether ICI can be ignored. Therefore, the sending end device needs to obtain the parameter value of the communication system first.
  • the sending end device can use the existing technology to obtain the parameter value of the above-mentioned communication system.
  • the first order of ICI can be determined. Specifically, according to the relationship between the ICI order shown in Table 1 and the parameters of the communication system, it can be determined that the ICI is a non-negligible ICI, so that the ICI order is determined to be the first order of the ICI.
  • the transmitting end device may determine that the PTRS pattern is a block pilot.
  • the block pilot includes at least one non-zero power resource unit and at least two zero power resource units.
  • the multiplexing mode of the multiple PTRS ports is semi-orthogonal multiplexing, that is, the phase tracking reference signals of at least two ports of the multiple phase tracking reference signal ports have at least one zero-power resource unit overlap, and at least one non-zero power
  • the resource units are orthogonal, and at least one zero-power resource unit is orthogonal.
  • FIG. 12 a schematic diagram of semi-orthogonal multiplexing of multiple PTRS ports, where part of the zero-power REs of the two ports of PTRS0 and PTRS1 overlap (shown in box 1), and some of the zero-power REs are orthogonal (box 2 and Shown in Box 3).
  • box 1 a schematic diagram of semi-orthogonal multiplexing of multiple PTRS ports, where part of the zero-power REs of the two ports of PTRS0 and PTRS1 overlap
  • some of the zero-power REs are orthogonal
  • box 2 and Shown in Box 3 Shown in Box 3
  • the pilots outside the frame 2 are the original pilot patterns of PTRS0.
  • the zero-power RE in the frame 2 on the layer L0 is to prevent interference to the corresponding RE on the layer 1.
  • the pilots outside the frame 3 are the original pilot patterns of PTRS1, and the zero-power RE in the frame 3 on the layer L1 is to prevent the corresponding RE on the layer 0 It is set to cause interference.
  • the specific pilot patterns of the non-orthogonal multiplexed multiple PTRS ports are related to the first order of ICI.
  • the first order of ICI can be determined according to the parameter values of the communication system obtained above.
  • FIG. 13 is a schematic diagram of a pattern of multiple PTRS ports in one block when the required estimated ICI order (the first order of ICI) is 3 and 5.
  • non-zero power PTRS can be power enhanced (or called power boost), so that the total power of the OFDM symbol or layer where the PTRS is located is the same as the total power of other OFDM symbols or other layers. Try to be as close as possible, and considering the hardware capabilities (such as power amplifiers, etc.), the maximum enhanced power multiple is limited.
  • M d M c / M nzp
  • M nzp block patterns for the non-zero number of resources occupied PTRS power units
  • M c is the number of consecutive units of the plurality of resource PTRS PTRS port multiplexing ( Including zero-power and non-zero-power PTRS resource units)
  • M f is the maximum power increase determined by the hardware capability of the transmitting end device
  • M f is determined by the hardware capability, or protocol agreement, or signaling instruction.
  • M nzp is determined by M c /M f .
  • the number of resource units occupied by the non-zero power PTRS in the block pattern is one.
  • a first order when the ICI is ⁇ 3,5 ⁇ , M c ⁇ 8,14 ⁇ , respectively, when the two ports may also be expressed as M c single port 13
  • the PTRS block size is M+ceil(M/2).
  • the block size after multi-port merging will further increase.
  • the total number of REs occupied by PTRS of a block on a layer is 5*N-2*(N-1), where 5 represents the number of REs occupied by the PTRS of one block in the original PTRS pattern of each port, and 2 represents the number of REs that overlap the PTRS on one block between the two frequency division ports ( That is the size of box 1), if there is still only one non-zero power PTRS in the block zero-power PTRS, due to hardware limitations, at this time, the power multiplier M f that can be enhanced, that is, one PTRS on a layer power on the block, which will be much smaller than M c, so that the RE proportion PTRS much smaller than the average power of the average power of the data RE, resulting in decreased PTRS estimation performance.
  • FIG. 14 is the first order of ICI
  • the ICI order is -1, or the number of REs where two semi-orthogonal ports overlap is equal to the ICI order -1.
  • the determined M d can also be rounded up or down or rounded, or when converted into a dB value, it can be rounded up or down with a given number of decimal places.
  • the solution can be extended to a single-port, that is, a single-port PTRS block It contains multiple non-zero power pilots and multiple zero power pilots, as shown in the PTRS pattern in the box in FIG. 14.
  • the above description process is based on the first order of ICI.
  • the first order of ICI can be an intermediate variable, that is, the present embodiment also supports that the first order of ICI is related to The parameters determine the pattern of PTRS or the multiplexing mode of PTRS.
  • the transmitting end device maps the phase tracking reference signal to the orthogonal frequency division multiplexing symbol according to the pilot pattern.
  • the transmitting end device maps the PTRS to the OFDM symbol according to the determined pilot pattern.
  • the sending end device sends an orthogonal frequency division multiplexing symbol.
  • the receiving end equipment receives the orthogonal frequency division multiplexing symbol and the orthogonal frequency division multiplexing symbol is mapped with a phase tracking reference signal.
  • S205 The receiving end device obtains the parameter value of the communication system.
  • the receiving end device can also obtain the parameter values of the communication system. For details, refer to the description of step S201 in this embodiment.
  • the block pilot includes at least one non-zero-power resource unit and at least two zero-power resource units; wherein, the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero-power resource unit.
  • the resource units overlap, and at least one non-zero power resource unit is orthogonal, and at least one zero power resource unit is orthogonal.
  • the receiving end device can also determine that the first order of subcarrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, according to the parameter value, to determine that the pattern of the phase tracking reference signal is a block guide. frequency. For details, refer to the description of step S202 in this embodiment.
  • the receiving end device obtains the phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol according to the pilot pattern.
  • the receiving end device determines the time-frequency resource location of the PTRS according to the above-mentioned pilot pattern, so that the PTRS mapped on the OFDM symbol can be obtained. Therefore, the ICI can be estimated and compensated according to the acquired PTRS.
  • the phase tracking reference signal is determined according to the parameter value of the current communication system
  • the pattern is a block pilot.
  • the phase tracking reference signals of at least two of the multiple phase tracking reference signal ports are semi-orthogonally multiplexed, so that the receiving end can use the semi-orthogonal multiplexed phase tracking reference signal to reduce
  • the inter-subcarrier interference is accurately estimated and compensated.
  • the multiplexing mode of multiple PTRS ports can also be orthogonal multiplexing and non-orthogonal multiplexing. So how to determine the multiplexing mode of multiple PTRS ports?
  • the transmitting end device may determine the first order of subcarrier interference according to the parameter value of the communication system, and then, the transmitting end device may determine multiple phase tracking reference signal ports according to the first order of subcarrier interference The multiplexing method.
  • the protocol may be pre-defined, or the access network device may be pre-configured, or the transmitting end device may pre-store the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of multiple PTRS ports. Therefore, the transmitting end device can determine the multiplexing mode of multiple PTRS ports according to the above-mentioned preset relationship.
  • the sending end device can obtain the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of multiple PTRS ports, where the parameter value set of each communication system includes the value of the parameter of at least one communication system Scope; then, according to the parameter value of at least one communication system, determine the parameter value set corresponding to the parameter value of the at least one communication system; the sending end device selects the multiple PTRS port corresponding to the determined parameter value set according to the preset relationship
  • the multiplexing mode is a multiplexing mode of multiple PTRS ports.
  • Non-orthogonal multiplexing that is, multiple PTRS occupies the same time-frequency resources and code resources, or the time-frequency resources occupied by multiple PTRS ports completely overlap.
  • PTRS0 and PTRS1 are mapped on the same time-frequency resource, and after data equalization, the ICI introduced by the phase noise is estimated and compensated respectively.
  • PTRS0 and PTRS1 can use the three PTRS patterns shown in FIG. 5 above.
  • Orthogonal multiplexing that is, the time-frequency resources occupied by multiple PTRS ports do not overlap at all. As shown in the schematic diagram of orthogonal multiplexing of multiple PTRS ports as shown in FIG. 16, the time-frequency resources occupied by PTRS0 and PTRS1 do not overlap at all. PTRS0 and PTRS1 can use the three PTRS patterns shown in FIG. 5 above.
  • the sender device can obtain the parameters of the actual communication system and determine the multiplexing mode of the corresponding multiple PTRS ports according to the parameters of the actual communication system.
  • the first information reported by the UE is received, and the multiplexing mode of the multiple PTRS ports is determined according to the first information.
  • the first information includes at least one of the following information: the multiplexing mode of multiple PTRS ports suggested by the UE, the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the at least one multiple PTRS ports, and the multiplexing mode suggested by the UE The first order of inter-subcarrier interference. Therefore, when determining the multiplexing mode of multiple PTRS ports, the transmitting end device can refer to the above first information to more accurately set the PTRS, so as to more accurately estimate and compensate the ICI.
  • the multiplexing mode of multiple PTRS ports can be flexibly determined according to the parameters of the actual communication system or the information suggested by the UE.
  • ICI order ICI 2 related to the PTRS port multiplexing mode reported by the UE is the same as the ICI order ICI 1 related to the DMRS frequency domain density, the UE only needs to report one parameter; when the UE reports ICI PTRS order number associated with port 2 multiplexing scheme ICI DMRS density and frequency domain and associated order ICI ICI. 1 is not the same, the UE needs to report the two parameters, can be reported and ICI ICI. 1 2, or ICI. 1 and ICI 2- ICI 1 , or ICI 1 and ICI 1- ICI 2 , or ICI 2 and ICI 2- ICI 1 , or ICI 2 and ICI 1- ICI 2 .
  • the access network can also The device determines the ICI order or PTRS port multiplexing mode, and the number of overlapping REs, and indicates the determined ICI order or PTRS port multiplexing mode, and the number of overlapping REs to the terminal device.
  • FIG. 17 is a schematic flowchart of another method for setting a reference signal according to an embodiment of the application, and the method may include the following steps:
  • the transmitting end device determines the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port .
  • Channel estimation modes are divided into traditional channel estimation modes and new channel estimation modes.
  • the signal sequence types of DMRS are divided into traditional signal sequences and new signal sequences.
  • the traditional channel estimation mode or the traditional DMRS signal sequence can be used.
  • ICI estimation needs to be considered that is, when the first order of ICI is greater than or equal to the first order threshold
  • a new channel estimation mode or a new DMRS signal sequence is adopted. Whether it is necessary to consider the estimation of ICI can refer to the description of the foregoing embodiment.
  • the parameter value of the communication system can be obtained, and the first order of the ICI can be determined according to the obtained parameter value of the communication system.
  • the first order threshold may be 1.
  • any two DMRS ports (hereinafter referred to as the first DMRS port and the second DMRS port) among the multiple DMRS ports are frequency division multiplexed use.
  • the transmitting end device determines the first signal sequence corresponding to the first DMRS port and the second signal sequence corresponding to the second DMRS port.
  • the signals on the adjacent resource units in the first signal sequence within the first bandwidth range are all the same, and the signals on the adjacent resource units in the second signal sequence within the second bandwidth range are opposite.
  • the design of the new signal sequence enables the multi-channel phase noise ICI effect received by the DMRS port on each sub-carrier to be offset by the operation of the receiving end device.
  • the number of resource units occupied by the demodulation reference signal on an orthogonal frequency division multiplexing symbol, ⁇ is the phase, and the value of ⁇ is related to at least one of the following parameters: subband index to which the first bandwidth belongs, orthogonal frequency division The index of the multiplexing symbol, the identification of the terminal device, the cell identification, the time slot index, and the subframe index.
  • ⁇ does not change within a certain bandwidth, but ⁇ can vary with subbands and OFDM symbols to flexibly set the above-mentioned signal sequence.
  • the division of subbands may be in units of integer multiples of resource blocks (resource block, RB), for example, one RB represents one subband.
  • this method can also be combined with the method of dynamically adjusting the frequency domain density of the DMRS in the embodiment shown in FIG. 9 to ensure the frequency of the basic DMRS. Under the condition of domain density, the influence of phase noise ICI on channel estimation is minimized.
  • DMRS port group A and DMRS port group B are distinguished by new signal sequences, and DMRS port group A and DMRS port group B are implemented with a sparser frequency domain density.
  • the frequency domain density of group A and group B are both It is 1/4, the ports in group A eliminate the influence of ICI through the above-mentioned special sequence, and the ports in group B eliminate the influence of ICI through the above-mentioned special sequence.
  • the sending end device may determine the signal sequence of the multiple DMRS ports of frequency division multiplexing by first obtaining the preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal; then, the sending end device according to at least A parameter value of a communication system, determining a parameter value set corresponding to a parameter value of at least one communication system; and selecting a signal sequence of a demodulation reference signal corresponding to the determined parameter value set as the first demodulation reference according to a preset relationship
  • the first signal sequence corresponding to the signal port and the second signal sequence corresponding to the second demodulation reference signal port For the meaning and relationship between the parameter value set of the communication system and the parameter value of the communication system, refer to the description of the foregoing embodiment.
  • the UE may also report the recommended first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, and/or the recommended first order of subcarrier interference. Therefore, when the sending end device is an access network device, the sending end device receives the first message sent by the UE, and the first message indicates the first signal sequence and the second demodulation corresponding to the first demodulation reference signal port suggested by the UE. The second signal sequence corresponding to the reference signal port, and/or the first order of subcarrier interference suggested by the UE.
  • the transmitting end device determines that the first signal sequence corresponding to the first demodulation reference signal port corresponds to the second demodulation reference signal port The second signal sequence.
  • the sending end device sends first indication information.
  • the receiving end device receives the first indication information.
  • the first indication information is used to indicate the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port.
  • the receiving end equipment uses DMRS signals to estimate the channel, it needs to combine the received signals on multiple similar subcarriers, first eliminate the influence of ICI, and then estimate the channel. There are special requirements for operation. Therefore, the sequence type of the DMRS can be bound to the channel estimation method, and the information needs to be indicated to the receiving end device.
  • the receiving end device completes the channel estimation based on the matching method according to the above-mentioned first indication information.
  • the transmitting end device may not send the first indication information, and the new signal sequence implicitly indicates the first signal corresponding to the first demodulation reference signal port The sequence and the second signal sequence corresponding to the second demodulation reference signal port.
  • the transmitting end device After the transmitting end device determines the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port, the transmitting end device transmits the first signal sequence at the first demodulation reference signal port. Signal sequence, and sending the second signal sequence at the second demodulation reference signal port.
  • the receiving end device receives the first signal sequence at the first demodulation reference signal port, and receives the second signal sequence at the second demodulation reference signal port.
  • the receiving end device eliminates the inter-subcarrier interference of the second signal sequence to the first signal sequence based on the second signal sequence to obtain the first demodulation reference signal, and eliminates the effect of the first signal sequence on the second signal sequence based on the first signal sequence.
  • the inter-subcarrier interference of the signal sequence obtains the second demodulation reference signal.
  • the receiving end device After receiving the above-mentioned first indication information, the receiving end device can determine that what the transmitting end device is sending is a new signal sequence, and determine the specific content of the new signal sequence, that is, it can be determined that the first signal sequence is within the first bandwidth range.
  • the signals on the adjacent resource units are all the same, and the signals on the adjacent resource units in the second signal sequence within the second bandwidth range are opposite. Therefore, the receiving end device can eliminate the inter-subcarrier interference of the second signal sequence to the received first signal sequence based on the received second signal sequence to obtain the first demodulation reference signal, and based on the received first signal sequence Sequence to eliminate the inter-subcarrier interference of the first signal sequence to the received second signal sequence to obtain the second demodulation reference signal.
  • the receiving end device may also determine the first demodulation reference signal port corresponding to the first demodulation reference signal port based on the preset relationship between the parameter value set of the at least one communication system and the signal sequence of the demodulation reference signal. A signal sequence and a second signal sequence corresponding to the second demodulation reference signal port.
  • the DMRS type 1 DMRS port code division when multiple type 1 DMRS ports are code-divided, no additional processing is required at the transceiver end. Therefore, if the existing information indicates that multiple ports are code-division, the default is the traditional sequence and traditional channel estimation method; In type 2 DMRS port code division, the sequence on the two adjacent subcarriers of the DMRS port can be the same. At this time, the receiving end can eliminate the influence of ICI on the corresponding receiving subcarrier. Therefore, when ICI estimation needs to be considered, the DMRS type The new sequence of 2 is: the sequence on two adjacent sub-carriers is the same, so the type 2 multi-DMRS port code division cannot be supported.
  • the transmitting end device when the inter-subcarrier interference is not negligible, transmits a specified signal sequence at the two demodulation reference signal ports of frequency division, and the specified signal sequence makes the solution
  • the influence of multi-channel phase noise inter-sub-carrier interference received on each sub-carrier by the modulation reference signal port can be cancelled by the operation of the receiving end equipment, thereby reducing the influence of inter-sub-carrier interference on channel estimation and improving the accuracy of channel estimation sex.
  • the methods and/or steps implemented by the transmitting end device can also be implemented by components (such as chips or circuits) that can be used for the transmitting end device; the methods and/or steps implemented by the receiving end device Or steps can also be implemented by components (such as chips or circuits) that can be used in the receiving device.
  • an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods.
  • the communication device may be the sender device in the foregoing method embodiment, or a device containing the foregoing sender device, or a component that can be used for the sender device; or, the communication device may be the receiver device in the foregoing method embodiment , Or a device containing the above-mentioned receiving end device, or a component that can be used for the receiving end device.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 18 is a schematic structural diagram of a communication device 1000 provided by an embodiment of the application.
  • the communication device 1000 includes one or more processors 11, a communication line 12, and at least one communication interface (in FIG. 18, the communication interface 14 and one processor 11 are taken as an example for illustration), optional
  • the memory 13 may also be included.
  • the processor 11 may be a CPU, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.
  • ASIC application-specific integrated circuit
  • the communication line 12 may include a path for connecting different components.
  • the communication interface 14 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and so on.
  • the transceiver module may be a device such as a transceiver or a transceiver.
  • the communication interface 14 may also be a transceiver circuit located in the processor 11 to implement signal input and signal output of the processor.
  • the memory 13 may be a device having a storage function.
  • it can be read-only memory (ROM) or other types of static storage devices that can store static information and computer programs, random access memory (RAM), or other types that can store information and computer programs.
  • the type of dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, optical discs Storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of computer programs or data structures and can Any other medium accessed by the computer, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 12.
  • the memory can also be integrated with the processor.
  • the memory 13 is used to store computer-executed instructions for executing the solution of the present application, and the processor 11 controls the execution.
  • the processor 11 is configured to execute computer-executable instructions stored in the memory 13 to implement the reference signal setting method provided in the embodiment of the present application.
  • the processor 11 may also perform processing-related functions in the reference signal setting method provided in the following embodiments of the present application, and the communication interface 14 is responsible for communicating with other devices or communication networks. There is no specific restriction on this.
  • the computer execution instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 11 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 18.
  • the communication device 10 may include multiple processors, such as the processor 11 and the processor 18 in FIG. 18. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication apparatus 1000 may further include an output device 15 and an input device 16.
  • the output device 15 communicates with the processor 11 and can display information in a variety of ways.
  • the aforementioned communication device 1000 may be a general-purpose device or a dedicated device.
  • the communication device 10 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a similar structure in FIG. 18.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 1000.
  • FIG. 19 shows a schematic structural diagram of a communication device 2000.
  • the communication device 2000 includes a processing module 21 and a transceiver module 22.
  • the transceiver module 22 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the processing module 21 is configured to obtain the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference;
  • the processing module 21 is further configured to determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system;
  • the processing module 21 is further configured to map the demodulation reference signal to the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal;
  • the transceiver module 22 is used to send orthogonal frequency division multiplexing symbols.
  • processing module 21 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system
  • the processing module 21 is further configured to determine the frequency domain density of the demodulation reference signal according to the first order of sub-carrier interference, where under the same DMRS configuration, the greater the first order of sub-carrier interference, the greater the first order of sub-carrier interference, the demodulation reference signal The smaller the frequency domain density.
  • the processing module 21 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein the parameter value set of each communication system includes at least one communication system The value range of the parameter;
  • the processing module 21 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 21 is further configured to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is an access network device
  • the transceiver module 22 is further configured to receive first information reported by the terminal equipment, the first information includes at least one of the following information: the frequency domain density of the demodulation reference signal, the parameter value set of at least one communication system, and the frequency domain of the demodulation reference signal The preset relationship of density, the first order of sub-carrier interference;
  • the processing module 21 is further configured to determine the frequency domain density of the demodulation reference signal according to the first information.
  • the processing module 21 is further configured to predefine, preconfigure or prestore at least one preset relationship between the parameter value set of the communication system and the frequency domain density of the demodulation reference signal.
  • the communication device 2000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instructions stored in the memory 13 to make the communication device 1000 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 21 and the transceiver module 22 in FIG. 19 may be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 21 in FIG. 19 can be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling a computer execution instruction stored in the memory 13, and the function of the transceiver module 22 in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 2000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, and will not be repeated here.
  • FIG. 20 shows a schematic structural diagram of another communication device 3000.
  • the communication device 3000 includes a transceiver module 31 and a processing module 32.
  • the transceiver module 31 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 31 is configured to receive orthogonal frequency division multiplexing symbols, and the orthogonal frequency division multiplexing symbols are mapped with demodulation reference signals;
  • the processing module 32 is configured to obtain the parameter value of the communication system, and the parameter value of the communication system is associated with the first order of subcarrier interference;
  • the processing module 32 is further configured to determine the frequency domain density of the demodulation reference signal corresponding to the parameter value of the communication system;
  • the processing module 32 is further configured to obtain the demodulation reference signal on the orthogonal frequency division multiplexing symbol according to the frequency domain density of the demodulation reference signal.
  • processing module 32 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system
  • the processing module 32 is further configured to determine the frequency domain density of the demodulation reference signal according to the first order of subcarrier interference, where, under the same DMRS configuration, the greater the first order of subcarrier interference, the greater the first order of subcarrier interference, the demodulation reference signal The smaller the frequency domain density.
  • the processing module 32 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the frequency domain density of the demodulation reference signal, wherein the parameter value set of each communication system includes at least one communication system The value range of the parameter;
  • the processing module 32 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 32 is further configured to select the frequency domain density of the demodulation reference signal corresponding to the determined parameter value set as the frequency domain density of the demodulation reference signal according to the preset relationship.
  • the communication device is a terminal device
  • the transceiver module 31 is further configured to report first information.
  • the first information includes at least one of the following information: the frequency domain density of the demodulation reference signal, the parameter value set of at least one communication system and the preset frequency domain density of the demodulation reference signal Define the relationship, the first order of sub-carrier interference.
  • the processing module 32 is further configured to predefine, preconfigure or prestore at least one preset relationship between the parameter value set of the communication system and the frequency domain density of the demodulation reference signal.
  • the communication device 3000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instructions stored in the memory 13 to make the communication device 1000 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the transceiver module 31 and the processing module 32 in FIG. 20 can be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 32 in FIG. 20 can be implemented by the processor 11 in the communication device 1000 shown in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 3000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, which will not be repeated here.
  • FIG. 21 shows a schematic structural diagram of another communication device 4000.
  • the communication device 4000 includes a processing module 41 and a transceiver module 42.
  • the transceiver module 42 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the processing module 41 is used to obtain parameter values of the communication system
  • the processing module 41 is further configured to determine, according to the parameter value, that the first order of subcarrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, determining that the pattern of the phase tracking reference signal is a block pilot. It includes at least one non-zero-power resource unit and at least two zero-power resource units; wherein the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero-power resource unit overlap, and at least One non-zero power resource unit is orthogonal, and at least one zero power resource unit is orthogonal;
  • the processing module 41 is further configured to map the phase tracking reference signal to the orthogonal frequency division multiplexing symbol according to the pilot pattern;
  • the transceiver module 42 is used to send orthogonal frequency division multiplexing symbols.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2)+M, where N is the first subcarrier interference
  • M is any integer greater than or equal to 1, and ceil means round up.
  • processing module 41 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system
  • the processing module 41 is further configured to determine the multiplexing mode of multiple phase tracking reference signal ports according to the first order of subcarrier interference, and the multiplexing mode includes any one of the following: orthogonal multiplexing, semi-orthogonal multiplexing, Non-orthogonal multiplexing.
  • the processing module 41 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, wherein the parameter value set of each communication system includes at least one communication system.
  • the processing module 41 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 41 is further configured to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is an access network device:
  • the transceiver module 42 is further configured to receive first information reported by the terminal device, the first information includes at least one of the following information: multiplexing mode of multiple phase tracking reference signal ports, at least one set of communication system parameter values and phase tracking reference signal The preset relationship of the multiplexing mode of the port, the first order of sub-carrier interference;
  • the processing module 41 is further configured to determine a multiplexing mode of multiple phase tracking reference signal ports according to the first information.
  • the processing module 41 is further configured to predefine, preconfigure or prestore the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of multiple phase tracking reference signal ports.
  • the communication device 4000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instruction stored in the memory 13 to make the communication device 1000 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 41 and the transceiver module 42 in FIG. 21 may be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 41 in FIG. 21 can be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling a computer execution instruction stored in the memory 13, and the function of the transceiver module 42 in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 4000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, and will not be repeated here.
  • FIG. 22 shows a schematic structural diagram of another communication device 5000.
  • the communication device 5000 includes a transceiver module 51 and a processing module 52.
  • the transceiver module 51 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 51 is configured to receive the orthogonal frequency division multiplexing symbol and the phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol;
  • the processing module 52 is used to obtain parameter values of the communication system
  • the processing module 52 is further configured to determine, according to the parameter value, that the first order of subcarrier interference is greater than 1 and the number of ports of the phase tracking reference signal is greater than 1, determining that the pattern of the phase tracking reference signal is a block pilot. It includes at least one non-zero-power resource unit and at least two zero-power resource units; wherein the phase tracking reference signal of any two of the multiple phase tracking reference signal ports has at least one zero-power resource unit overlap, and at least One non-zero power resource unit is orthogonal, and at least one zero power resource unit is orthogonal;
  • the processing module 52 is further configured to obtain the phase tracking reference signal mapped on the orthogonal frequency division multiplexing symbol according to the pilot pattern.
  • the number of overlapping at least one zero-power resource unit is N-1, or the number of overlapping at least one zero-power resource unit is ceil(N/2)+M, where N is the first subcarrier interference
  • M is any integer greater than or equal to 1, and ceil means round up.
  • processing module 52 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system
  • the processing module 52 is further configured to determine the multiplexing mode of multiple phase tracking reference signal ports according to the first order of sub-carrier interference.
  • the multiplexing mode includes any of the following: orthogonal multiplexing, semi-orthogonal multiplexing, Non-orthogonal multiplexing.
  • the processing module 52 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the multiplexing mode of the phase tracking reference signal port, wherein the parameter value set of each communication system includes at least one communication system.
  • the processing module 52 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 52 is further configured to select the multiplexing mode of the multiple phase tracking reference signal ports corresponding to the determined parameter value set as the multiplexing mode of the multiple phase tracking reference signal ports according to the preset relationship.
  • the communication device is a terminal device
  • the transceiver module 51 is further configured to report first information.
  • the first information includes at least one of the following information: multiplexing mode of a plurality of phase tracking reference signal ports, multiplexing of a parameter value set of at least one communication system and a phase tracking reference signal port The preset relationship of the mode, the first order of sub-carrier interference.
  • processing module 52 is further configured to pre-define, pre-configure or pre-store the preset relationship between the parameter value set of at least one communication system and the multiplexing mode of multiple phase tracking reference signal ports.
  • the communication device 5000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instructions stored in the memory 13 to make the communication device 1000 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the transceiver module 51 and the processing module 52 in FIG. 22 may be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 52 in FIG. 22 can be implemented by the processor 11 in the communication device 1000 shown in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 5000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, and details are not described herein again.
  • FIG. 23 shows a schematic structural diagram of another communication device 6000.
  • the communication device 6000 includes a processing module 61 and a transceiver module 62.
  • the transceiver module 62 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the processing module 61 is configured to determine the first signal sequence corresponding to the first demodulation reference signal port and the second signal corresponding to the second demodulation reference signal port if the first order of subcarrier interference is greater than or equal to the first order threshold Sequence, where the first demodulation reference signal port and the second demodulation reference signal port are frequency-division multiplexed, the signals on adjacent resource units in the first signal sequence are the same in the first bandwidth range, and the signals on the adjacent resource units in the first signal sequence are the same in the second bandwidth.
  • the signals on adjacent resource units in the second signal sequence within the range are opposite;
  • the transceiver module 62 is configured to send first indication information, where the first indication information is used to indicate a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port;
  • the transceiver module 62 is further configured to send a first signal sequence at the first demodulation reference signal port and send a second signal sequence at the second demodulation reference signal port.
  • the first signal sequence s1 [1,1,...,1]*exp(j ⁇ )
  • the second signal sequence s2 [1,-1,1,-1,...,1,-1]* exp(j ⁇ )
  • the length of s1 is the number of resource units occupied by the demodulation reference signal on an orthogonal frequency division multiplexing symbol in the first bandwidth range
  • the length of s2 is an orthogonality in the second bandwidth range
  • the number of resource units occupied by the demodulation reference signal on the frequency division multiplexing symbol, ⁇ is the phase
  • the value of ⁇ is related to at least one of the following parameters: the subband index to which the first bandwidth belongs, and the orthogonal frequency division multiplexing symbol
  • the communication device is an access network device
  • the transceiver module 62 is further configured to receive a first message sent by the terminal device, the first message indicating the first signal sequence corresponding to the first demodulation reference signal port and the second signal corresponding to the second demodulation reference signal port suggested by the terminal device Sequence, and/or the first order of sub-carrier interference suggested by the terminal equipment.
  • the processing module 61 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal;
  • the processing module 61 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 61 is further configured to select the signal sequence of the demodulation reference signal corresponding to the determined parameter value set as the first signal sequence and the second demodulation reference signal corresponding to the first demodulation reference signal port according to the preset relationship The second signal sequence corresponding to the port.
  • processing module 61 is also used to obtain parameter values of the communication system
  • the processing module 61 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system.
  • the communication device 6000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instructions stored in the memory 13 to make the communication device 10 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 61 and the transceiver module 62 in FIG. 23 may be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 61 in FIG. 23 can be implemented by the processor 11 in the communication device 1000 shown in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 6000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, and will not be repeated here.
  • FIG. 24 shows a schematic structural diagram of another communication device 7000.
  • the communication device 7000 includes a transceiver module 71 and a processing module 72.
  • the transceiving module 71 may also be called a transceiving unit to implement a transceiving function, for example, it may be a transceiving circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 71 is configured to receive first indication information, where the first indication information is used to indicate a first signal sequence corresponding to the first demodulation reference signal port and a second signal sequence corresponding to the second demodulation reference signal port, where the first signal sequence corresponds to the second demodulation reference signal port.
  • a demodulation reference signal port and a second demodulation reference signal port are frequency-division multiplexed.
  • the signals on adjacent resource units in the first signal sequence within the first bandwidth range are the same, and the second signal is within the second bandwidth range.
  • the signals on adjacent resource units in the sequence are opposite;
  • the transceiver module 71 is further configured to receive the first signal sequence at the first demodulation reference signal port, and receive the second signal sequence at the second demodulation reference signal port;
  • the processing module 72 is configured to eliminate the inter-subcarrier interference of the second signal sequence to the first signal sequence based on the second signal sequence to obtain the first demodulation reference signal, and based on the first signal sequence, eliminate the first signal sequence to the first signal sequence.
  • the inter-subcarrier interference of the two signal sequences obtains the second demodulation reference signal.
  • the first signal sequence s1 [1,1,...,1]*exp(j ⁇ )
  • the second signal sequence s2 [1,-1,1,-1,...,1,-1]* exp(j ⁇ )
  • the length of s1 is the number of resource units occupied by the demodulation reference signal on an orthogonal frequency division multiplexing symbol in the first bandwidth range
  • the length of s2 is an orthogonality in the second bandwidth range
  • the number of resource units occupied by the demodulation reference signal on the frequency division multiplexing symbol, ⁇ is the phase
  • the value of ⁇ is related to at least one of the following parameters: the subband index to which the first bandwidth belongs, and the orthogonal frequency division multiplexing symbol
  • the communication device is a terminal device
  • the transceiver module 71 is further configured to send a first message, the first message indicating the first signal sequence corresponding to the first demodulation reference signal port and the second signal sequence corresponding to the second demodulation reference signal port suggested by the terminal device, and/ Or the first order of sub-carrier interference suggested by the terminal equipment.
  • the processing module 72 is further configured to obtain a preset relationship between the parameter value set of at least one communication system and the signal sequence of the demodulation reference signal;
  • the processing module 72 is further configured to determine a parameter value set corresponding to the parameter value of the at least one communication system according to the parameter value of the at least one communication system;
  • the processing module 72 is further configured to select the signal sequence of the demodulation reference signal corresponding to the determined parameter value set as the first signal sequence and the second demodulation reference signal corresponding to the first demodulation reference signal port according to the preset relationship The second signal sequence corresponding to the port.
  • processing module 72 is also used to obtain parameter values of the communication system
  • the processing module 72 is further configured to determine the first order of sub-carrier interference according to the parameter value of the communication system.
  • the communication device 7000 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the processor 11 in the communication device 1000 shown in FIG. 18 may invoke the computer execution instructions stored in the memory 13 to make the communication device 10 execute the reference signal setting method in the foregoing method embodiment.
  • the functions/implementation process of the transceiver module 71 and the processing module 72 in FIG. 24 may be implemented by the processor 11 in the communication device 1000 shown in FIG. 18 calling the computer execution instructions stored in the memory 13.
  • the function/implementation process of the processing module 72 in FIG. 24 can be implemented by the processor 11 in the communication device 1000 shown in FIG.
  • the implementation process can be implemented through the communication interface 14 in the communication device 1000 shown in FIG. 18.
  • the communication device 7000 provided in this embodiment can perform the reference signal setting method in the foregoing method embodiment, the technical effects that can be obtained can refer to the foregoing method embodiment, and will not be repeated here.
  • one or more of the above modules or units can be implemented by software, hardware or a combination of both.
  • the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow.
  • the processor can be built in SoC (system on chip) or ASIC, or it can be an independent semiconductor chip.
  • SoC system on chip
  • ASIC application specific integrated circuit
  • the processor's internal processing is used to execute software instructions to perform calculations or processing, and may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , Or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate array
  • PLD programmable logic device
  • the hardware can be a CPU, a microprocessor, a digital signal processing (digital signal processing, DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • DSP digital signal processing
  • MCU microcontroller unit
  • an artificial intelligence processor an ASIC
  • Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • an embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to the memory through the interface, and when the at least one processor executes a computer program or instruction in the memory At this time, the method in any of the foregoing method embodiments is executed.
  • the chip system may be composed of chips, or may include chips and other discrete devices, which are not specifically limited in the embodiment of the present application.
  • words such as “first” and “second” are used to distinguish the same or similar items with substantially the same function and effect. Those skilled in the art can understand that words such as “first” and “second” do not limit the quantity and order of execution, and words such as “first” and “second” do not limit the difference.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner to facilitate understanding.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer-executable instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer-executable instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer-executable instructions may be sent from a website, computer, server, or The data center transmits to another website, computer, server, or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (for example, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or may include one or more data storage devices such as servers, data centers, etc. that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

La présente demande divulgue un procédé et un appareil de configuration de signal de référence. Le procédé consiste : lorsqu'une interférence inter-sous-porteuses ne peut être ignorée, à déterminer de manière dynamique une densité de domaine de fréquence d'un signal de référence de démodulation selon une valeur de paramètre d'un système de communication actuel, la valeur de paramètre du système de communication étant associée à un ordre de l'interférence de sous-porteuse ne pouvant être ignoré, et le signal de référence de démodulation pouvant être configuré avec précision ; ou à envoyer une séquence de signal spécifiée au niveau de deux ports de signal de référence de démodulation d'une division de fréquence, de façon à réduire l'effet d'interférence inter-sous-porteuses sur l'estimation de canal et à améliorer la précision d'estimation de canal. De plus, le motif d'un signal de référence de suivi de phase (PTRS) est déterminé en tant que pilote de bloc, et les PTRS de deux ports quelconques parmi une pluralité de ports PTRS sont multiplexés semi-orthogonaux, de telle sorte qu'une extrémité de réception peut estimer et compenser avec précision l'interférence inter-sous-porteuses sur la base des PTRS multiplexés semi-orthogonaux ; et le surdébit des PTRS peut être réduit à l'aide d'un moyen de multiplexage semi-orthogonal.
PCT/CN2020/080751 2020-03-23 2020-03-23 Procédé et appareil de configuration de signal de référence WO2021189216A1 (fr)

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WO2023066117A1 (fr) * 2021-10-18 2023-04-27 华为技术有限公司 Procédé et dispositif de transmission de données
WO2023116613A1 (fr) * 2021-12-20 2023-06-29 华为技术有限公司 Procédé et appareil de communication
WO2023221894A1 (fr) * 2022-05-19 2023-11-23 华为技术有限公司 Procédé et appareil de communication
US11996961B2 (en) * 2023-03-13 2024-05-28 Telefonaktiebolaget Lm Ericsson (Publ) Receiver for a wireless communication network

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