Phase tracking reference signal transmission method, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a phase tracking reference signal transmission method, electronic equipment and a storage medium, and the method comprises the steps: transmitting a demodulation reference signal of a demodulation reference signal port of a physical data channel on a first time domain symbol through employing X subcarriers, and sending a phase tracking reference signal associated with the demodulation reference signal port on a second time domain symbol by using Y subcarriers, wherein X is an integer larger than 0, Y is an integer larger than 0 and smaller than or equal to X, and the frequency domain positions of the Y subcarriers are subsets of the frequency domain positions of the X subcarriers. According to the embodiment of the invention, the influence of phase noise on a mobile communication system can be reduced, the stability of wireless communication service can be improved, and the transmission efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular, to a method for transmitting a phase tracking reference signal, an electronic device, and a storage medium. Background Art

[0002] Phase noise is the random change of the phase of the system output signal caused by the action of noise such as random white noise and flicker noise in radio frequency devices. This change will deteriorate the signal-to-noise ratio (SIGNAL-NOISE RATIO, SNR) or error vector magnitude (Error Vector Magnitude, EVM) at the receiving end, resulting in an increase in the error code rate and limiting the use of high-order modulation, thereby affecting the system capacity. As the operating frequency increases, especially in the millimeter-wave band, the impact of phase noise also increases significantly. To address this challenge, mobile communication systems need to introduce phase tracking reference signals (Phase Tracking Reference Signals, PTRS) and phase estimation compensation algorithms. PTRS is associated with the demodulation reference signal port of the demodulation reference signal during transmission and exists in the uplink channel (Physical Uplink Shared Channel, PUSH) and the downlink channel (Physical Downlink Shared Channel, PDSCH). How to effectively reduce the impact of phase noise on the system performance by introducing PTRS and phase estimation compensation algorithms and achieve high-speed and stable wireless communication services has become an urgent problem to be solved currently. Summary of the Invention

[0003] Embodiments of the present application provide a method for transmitting a phase tracking reference signal, an electronic device, and a storage medium, aiming to reduce the impact of phase noise on a mobile communication system, improve the stability of wireless communication services, and improve transmission efficiency.

[0004] Embodiments of the present application provide a method for transmitting a phase tracking reference signal, which is applied to a first node. The method includes:

[0005] Transmitting a demodulation reference signal of a demodulation reference signal port of a physical data channel on X subcarriers in a first time domain symbol;

[0006] Transmitting a phase tracking reference signal associated with the demodulation reference signal port on Y subcarriers in a second time domain symbol;

[0007] Wherein, X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X subcarriers.

[0008] An embodiment of the present application further provides a method for transmitting a phase tracking reference signal, which is applied to a second node. The method includes:

[0009] Receiving a demodulation reference signal of a demodulation reference signal port of a physical data channel sent by a first node using X subcarriers on a first time domain symbol;

[0010] Receiving a phase tracking reference signal associated with the demodulation reference signal port sent by the first node using Y subcarriers on a second time domain symbol;

[0011] Wherein, X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X subcarriers.

[0012] An embodiment of the present application further provides an electronic device. The electronic device includes:

[0013] One or more processors;

[0014] A memory for storing one or more programs;

[0015] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for transmitting a phase tracking reference signal as described in any one of the embodiments of the present application.

[0016] An embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores one or more programs, and the one or more programs are executed by one or more processors to implement the method for transmitting a phase tracking reference signal as described in any one of the embodiments of the present application. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a flowchart of a method for transmitting a phase tracking reference signal provided by an embodiment of the present application;

[0019] Figure 2It is an exemplary diagram of the subcarrier position relationship between DMRS and PTRS provided by an embodiment of the present application;

[0020] Figure 3 It is another exemplary diagram of the subcarrier position relationship between DMRS and PTRS provided by an embodiment of the present application;

[0021] Figure 4 It is another exemplary diagram of the subcarrier position relationship between DMRS and PTRS provided by an embodiment of the present application;

[0022] Figure 5 It is another exemplary diagram of the subcarrier position relationship between DMRS and PTRS provided by an embodiment of the present application;

[0023] Figure 6 It is another exemplary diagram of the subcarrier position relationship between DMRS and PTRS provided by an embodiment of the present application;

[0024] Figure 7 It is a schematic diagram of different constellations of 256QAM provided by an embodiment of the present application;

[0025] Figure 8 It is a flowchart of another method for transmitting phase tracking reference signals provided by an embodiment of the present application;

[0026] Figure 9 It is a schematic structural diagram of a device for transmitting phase tracking reference signals provided by an embodiment of the present application;

[0027] Figure 10 It is a schematic structural diagram of another device for transmitting phase tracking reference signals provided by an embodiment of the present application;

[0028] Figure 11 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0029] It should be understood that the specific implementations described herein are only for explaining the present application and are not used to limit the present application.

[0030] In subsequent descriptions, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present application, and they have no specific meaning by themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0031] Figure 1The figure is a flowchart of a method for transmitting a phase-tracking reference signal provided by an embodiment of the present application. The embodiment of the present application is applicable to the case of transmitting a phase-tracking reference signal. This method can be executed by a phase-tracking reference signal transmission device, which can be implemented by software and / or hardware methods and is generally integrated in a base station or a terminal device. As Figure 1 shown, the method provided by the embodiment of the present application specifically includes the following steps:

[0032] Step 110: Transmit the demodulation reference signal of the demodulation reference signal port of the physical data channel on X subcarriers in a first time-domain symbol.

[0033] Among them, the first time-domain symbol can be a time-domain symbol for transmitting a demodulation reference signal. The subcarriers for transmitting the demodulation reference signal on the first time-domain symbol are one or more. The demodulation reference signal can be used for the demodulation reference signal port of the physical data channel. A subcarrier can be referred to as a resource element (RE).

[0034] In the embodiment of the present application, the first node can transmit a demodulation reference signal on X subcarriers in the first time-domain symbol, and the demodulation reference signal corresponds to the demodulation reference signal port of the physical data channel.

[0035] Step 120: Transmit a phase-tracking reference signal associated with the demodulation reference signal port on Y subcarriers in a second time-domain symbol; where X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0036] Among them, the second time-domain symbol can be a time-domain symbol with a different time-domain position from the first time-domain symbol. The frequency-domain positions of the subcarriers included in the second time-domain symbol can be a subset of the frequency-domain positions of the subcarriers of the first time-domain symbol.

[0037] Specifically, the first node can also transmit a phase-tracking reference signal on Y subcarriers in the second time-domain symbol. The phase-tracking reference signal can be associated with the demodulation reference signal port transmitted on the first time-domain symbol. Then, the frequency-domain positions of the Y subcarriers can be a subset of the frequency-domain positions of the X subcarriers.

[0038] Exemplarily, referring to Figure 2 , the first node can transmit the demodulation reference signal of DMRS port 0 of the physical data channel to the second node on subcarriers 0 / 2 / 4 / 6 / 8 in the first time-domain symbol, and the first node can transmit the phase-tracking reference signal associated with DMRS port 0 to the second node on subcarriers 0 / 4 / 8 in the second time-domain.

[0039] In some application embodiments, only demodulation reference signals are sent on X1 subcarriers among the X subcarriers, demodulation reference signals and data are sent on X2 subcarriers, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X1 subcarriers.

[0040] In an embodiment of the present application, the first node sends only a demodulation reference signal on X1 subcarriers among the X subcarriers, for example, only sends the demodulation reference signal of the demodulation reference signal port, and may also send the demodulation reference signal of the demodulation reference signal port and the demodulation reference signal of other demodulation reference signal ports, and sends the demodulation reference signal and data on X2 subcarriers among the X subcarriers, for example, the demodulation reference signal and data may include only sending the demodulation reference signal of the demodulation reference signal port and its corresponding data, and may also send the demodulation reference signal of the demodulation reference signal port, the data associated with the demodulation reference signal port, the demodulation reference signal of other demodulation reference signal ports, and the data associated with the demodulation reference signal port includes the same precoding used for sending the demodulation reference signal on the demodulation reference signal port. The frequency domain positions of the Y subcarriers for which the first node transmits the phase tracking reference signal associated with the demodulation reference signal port may be a subset of the frequency domain positions of the X1 subcarriers.

[0041] In an exemplary embodiment, see Figure 3 , the first node can use subcarriers 0 / 2 / 4 / 6 / 8 to send the demodulation reference signal of the physical data channel DMRS port 0 to the second node on the first time domain symbol, and the first node can use subcarriers 0 / 4 / 8 to send the phase tracking reference signal associated with DMRS port 0 to the second node in the second time domain. If only the demodulation reference signal is sent on subcarriers 0 / 2 / 6 / 8 among the 5 subcarriers, the demodulation reference signal may include only sending the demodulation reference signal port 0, and may also include sending the demodulation reference signal port 0 and the demodulation reference signals of other demodulation reference signal ports, such as the demodulation reference signal that has been precoded. When the demodulation reference signal and data are sent on subcarrier 4, the available subcarriers of the phase noise reference signal on the second time domain symbol are a subset of subcarriers 0 / 2 / 6 / 8, such as subcarriers 0 and 8. It is worth noting that the full set is a special subset, that is, it can also be used in some embodiments.

[0042] In some application embodiments, only demodulation reference signals are sent on X1 subcarriers among the X subcarriers, demodulation reference signals and data are sent on X2 subcarriers, and at least one frequency domain position among the frequency domain positions of the Y subcarriers is the same as one frequency domain position among the frequency domain positions of the X1 subcarriers.

[0043] In an embodiment of the present application, the first node only transmits demodulation reference signals on X1 subcarriers among X subcarriers, and transmits demodulation reference signals and data on X2 subcarriers among the X subcarriers. At least one of the frequency domain positions of the Y subcarriers on which the first node transmits phase tracking reference signals associated with the demodulation reference signal ports is the same as one of the frequency domain positions of the X1 subcarriers.

[0044] In an exemplary embodiment, refer to Figure 4 , the first node may use subcarriers 0 / 2 / 4 / 6 / 8 on the first time domain symbol to transmit the demodulation reference signals of physical data channel DMRS port 0 to the second node. The first node uses subcarriers 0 / 4 / 8 on the second time domain to transmit the phase tracking reference signals associated with DMRS port 0 to the second node. If only demodulation reference signals are transmitted on subcarriers 0 / 2 / 6 / 8 among the 5 subcarriers, the demodulation reference signals may include only the demodulation reference signals of port 0, or may include the demodulation reference signals of port 0 and the demodulation reference signals of other demodulation reference signal ports. When demodulation reference signals and data are transmitted on subcarrier 4, at least one of the subcarriers used for the phase noise reference signal on the second time domain symbol comes from subcarriers 0 / 2 / 6 / 8, such as subcarrier 0.

[0045] In some embodiments of the application, all the subcarriers that transmit demodulation reference signals transmit both demodulation reference signals and data, and among the X subcarriers, the number of data bits carried on X3 subcarriers is less than the number of data bits carried on other subcarriers among the X subcarriers. The frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X3 subcarriers.

[0046] In an embodiment of the present application, all the X subcarriers that transmit demodulation reference signals transmit demodulation reference information and data. Among the X subcarriers, the amount of data carried on X3 subcarriers is less than the amount of data written on other subcarriers among the X subcarriers. The frequency domain positions of the Y subcarriers on which the first node transmits phase tracking reference signals associated with the demodulation reference signal ports may be a subset of the frequency domain positions of the X3 subcarriers, that is, the frequency domain positions of the Y subcarriers may be a subset of the frequency domain positions of the subcarriers with a smaller number of data bits carried.

[0047] In an exemplary embodiment, refer to Figure 5, the first node may transmit the demodulation reference signal of physical data channel DMRS port 0 to the second node on subcarriers 0 / 2 / 4 / 6 / 8 in the first time-domain symbol. The first node transmits the phase-tracking reference signal associated with DMRS port 0 to the second node on subcarriers 0 / 4 / 8 in the second time domain. If all of the 5 subcarriers 0 / 2 / 4 / 6 / 8 for transmitting the demodulation reference signal carry both the demodulation reference signal and data, and the number of data bits carried on subcarriers 2 / 6 (from the data bit stream obtained after coding) is less than or equal to the number of data bits carried on subcarriers 0 / 4 / 8 (from the data bit stream obtained after coding), then the available subcarriers of the phase noise reference signal in the second time-domain symbol are a subset of subcarriers 2 / 6, such as subcarrier 2.

[0048] In some application embodiments, all of the subcarriers for transmitting the demodulation reference signal among the X subcarriers carry both the demodulation reference signal and data, and among the X subcarriers, the number of data bits carried on X3 subcarriers is less than the number of data bits carried on the other subcarriers among the X subcarriers. At least one of the frequency-domain positions of the Y subcarriers is the same as one of the frequency-domain positions of the X1 subcarriers.

[0049] In the embodiments of the present application, all of the X subcarriers for transmitting the demodulation reference signal transmit both the demodulation reference information and data. Among the X subcarriers, the amount of data carried on X3 subcarriers is less than the amount of data written on the other subcarriers among the X subcarriers. At least one of the frequency-domain positions of the Y subcarriers for the first node to transmit the phase-tracking reference signal associated with the demodulation reference signal port may be the same as the frequency-domain positions of the X3 subcarriers.

[0050] In an exemplary embodiment, refer to Figure 6 , the first node may transmit the demodulation reference signal of physical data channel DMRS port 0 to the second node on subcarriers 0 / 2 / 4 / 6 / 8 in the first time-domain symbol. The first node transmits the phase-tracking reference signal associated with DMRS port 0 to the second node on subcarriers 0 / 4 / 8 in the second time domain. If all of the 5 subcarriers 0 / 2 / 4 / 6 / 8 for transmitting the demodulation reference signal carry both the demodulation reference signal and data, and the number of data bits carried on subcarriers 2 / 6 (from the data bit stream obtained after coding) is less than or equal to the number of data bits carried on subcarriers 0 / 4 / 8 (from the data bit stream obtained after coding), then the available subcarriers of the phase noise reference signal in the second time-domain symbol include at least one of subcarriers 2 or 6, such as subcarrier 2.

[0051] In some application embodiments, it further includes at least one of the following: determining at least one of the time-domain density, the number of time-domain symbols, and the time-domain position of the transmission phase tracking reference signal based at least on the constellation mapping method corresponding to the modulation order of the data carried on the physical data channel; determining at least one of the subcarrier density, the number of subcarriers, and the subcarrier position of the transmission phase tracking parameter signal based at least on the constellation mapping method corresponding to the modulation order of the data carried on the physical data channel.

[0052] In the embodiments of the present application, information such as the subcarrier density (or frequency-domain density), the number of subcarriers (or frequency-domain number), and the subcarrier position (or frequency-domain position) of the phase tracking reference signal can be determined by the constellation mapping method corresponding to the modulation order of the data carried on the physical data channel. Different constellation mapping methods can configure at least one of the subcarrier density, the number of subcarriers, and the subcarrier position of the phase tracking reference signal, or different constellation mapping methods can configure at least one of the frequency-domain density, the frequency-domain number, and the frequency-domain position. The constellation mapping method can be determined by the modulation order of the data carried on the physical data channel.

[0053] In an exemplary embodiment, refer to Figure 7 , the first node determines at least one of the time-domain density, the number of time-domain symbols, and the time-domain position of the transmission phase tracking reference signal according to the constellation mapping method corresponding to the modulation order of the data carried on the physical data channel. For example, for the 256QAM modulation method, there are multiple constellation mapping methods. In the standard 256QAM constellation diagram, the distance between adjacent constellation points is equal. However, the 256QAM constellation diagram obtained by shaping through geometric or artificial intelligence techniques usually involves reducing the occurrence frequency of the outer-ring constellation points (i.e., points with larger amplitudes) and increasing the occurrence frequency of the inner-ring constellation points. This is beneficial for reducing the average power, which is equivalent to increasing the minimum Euclidean distance, thereby improving the transmission performance. Different constellation mapping methods can be configured with different information such as the time-domain density, the number of time-domain symbols, and the time-domain position of the phase tracking reference signal. For example, the constellation mapping method is determined through the first table, and at least one of the time-domain density, the number of time-domain symbols, and the time-domain position of the phase tracking reference signal is determined through the second table according to the constellation mapping method determined by the first table. Alternatively, the constellation mapping method and the time-domain density index value of the phase reference signal are notified to the first node through RRC signaling, MAC signaling, DCI signaling, or a combination thereof. The first node determines the value of the time-domain density index value based on the constellation mapping method. For example, for the same index value, the value of the time-domain density corresponding to the 256QAM standard constellation diagram is 4, and the value of the time-domain density corresponding to the 256QAM shaped constellation diagram is 2.

[0054] Alternatively, the first node determines at least one of the subcarrier density, the number of subcarriers, and the subcarrier position for transmitting the phase tracking reference signal based at least on the constellation mapping method corresponding to the modulation order of the data carried on the physical data channel. For example, the constellation mapping method is determined through the first table, and at least one of the subcarrier density, the number of subcarriers, or the subcarrier position of the phase tracking reference signal is determined through the second table according to the constellation mapping method determined by the first table. Alternatively, the constellation mapping method and the phase reference signal subcarrier density (frequency domain density) index value are notified to the first node through RRC signaling, MAC signaling, DCI signaling, or a combination thereof. The first node determines the value of the phase reference signal subcarrier density index value based on the constellation mapping method. For example, for the same index value, the value of the frequency domain density corresponding to the 256QAM standard constellation is 2, and the value of the frequency domain density corresponding to the 256QAM shaped constellation is 1.

[0055] In some embodiments of the application, whether the data and / or signals on the other demodulation reference signal ports of the first node are carried on the subcarriers used for the phase tracking reference signal are determined through negotiation with the second node that receives the phase tracking reference signal or are default-configured.

[0056] In the embodiments of the present application, whether the data and / or signals on the other demodulation reference signal ports of the first node can be carried on the subcarriers used for the phase tracking reference signal can be determined through negotiation between the first node and the second node, or can be default-configured within the first node.

[0057] In an exemplary embodiment, the first node may use subcarriers 0 / 2 / 4 / 6 / 8 on the first time domain symbol to transmit the demodulation reference signal of the physical data channel DMRS port 0 to the second node, and the first node uses subcarriers 0 / 4 / 8 on the second time domain to transmit the phase tracking reference signal associated with DMRS port 0 to the second node. Among them, whether the data and / or signals on the other demodulation reference signal ports of the first node are carried on the subcarriers used for the phase noise reference signal are determined through negotiation between the first node and the second node that receives the phase noise reference signal, or through default configuration. For example, whether the data information of the layer corresponding to DMRS port 0, the data information of the layers corresponding to other DMRS demodulation reference signal ports, the DMRS sequences of other DMRS demodulation reference signal ports, the PTRS sequences of other PTRS demodulation reference signal ports, or the SRS sequence are also carried on the subcarriers used for the phase noise reference signal can be determined through default configuration or through negotiation between the first node and the second node.

[0058] In some application embodiments, the demodulation reference signal and data of the demodulation reference signal port are transmitted on the subcarriers of the first time-frequency domain symbol corresponding to the Y subcarrier frequency domain positions. The content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port in the first time domain symbol and the demodulation reference signal of the demodulation reference signal port transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions. Alternatively, the content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port in the first time domain symbol, and the demodulation reference signal and data of the demodulation reference signal port transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions.

[0059] In the embodiments of the present application, the content transmitted by the first node on the subcarriers corresponding to the Y subcarriers of the second time domain symbol among the X subcarriers of the first time domain symbol is the demodulation reference signal of the demodulation reference signal port and the data. The content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers corresponding to the X subcarriers in the frequency domain position is the demodulation reference signal of the demodulation reference channel port in the first time domain symbol, and the demodulation reference signal corresponding to the demodulation reference signal port transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions. Alternatively, the content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers corresponding to the X subcarriers in the frequency domain position is the demodulation reference signal of the demodulation reference channel port in the first time domain symbol, and the demodulation reference signal and data corresponding to the demodulation reference signal port transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions. Herein, the data may be data associated with the demodulation reference signal port or data associated with one or more other demodulation reference signal ports.

[0060] In an exemplary embodiment, the first node may send the demodulation reference signal of physical data channel DMRS port 0 to the second node using subcarriers 0 / 2 / 4 / 6 / 8 on the first time-domain symbol. The first node sends the phase-tracking reference signal associated with DMRS port 0 to the second node using subcarriers 0 / 4 / 8 on the second time domain. If the first node sends the demodulation reference signal and data of DMRS port 0 (data that may belong to the same layer as the demodulation reference signal and / or data of different layers) on the subcarriers of the first time-domain symbol corresponding to the Y subcarrier frequency-domain positions, then the content of the phase-tracking reference signal associated with DMRS port 0 sent on the Y subcarriers is the demodulation reference signal of DMRS port 0 sent on the subcarriers of the first time-domain symbol and corresponding to the Y subcarrier frequency-domain positions, or the content of the phase-tracking reference signal associated with DMRS port 0 sent on the Y subcarriers is the demodulation reference signal and data of DMRS port 0 sent on the subcarriers of the first time-domain symbol and corresponding to the Y subcarrier frequency-domain positions. For example, if the demodulation reference signal X and data D of DMRS port 0 are sent on subcarrier 0 of the first time-domain symbol, then the phase noise reference signal sent on subcarrier 0 of the second time-domain symbol may be X or the demodulation reference signal and data of DMRS port 0.

[0061] In some application embodiments, the content of the demodulation reference signal port sent on the subcarriers of the first time-domain symbol corresponding to the Y subcarrier frequency-domain positions is different from the content of the phase-tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers. Among the set of time-domain symbols allocated to the physical data channel, the number of time-domain symbols between any two adjacent time-domain symbols sending the phase-tracking reference signal is one of the three values of a fixed value F or H, (H + 1), and (H + 2), where F and H are integers greater than or equal to 0.

[0062] In an embodiment of the present application, the content of the port of the demodulation reference signal transmitted by the first node on the subcarriers corresponding to the Y subcarrier frequency domain positions in the first time domain symbol is different from the content of the phase tracking reference signal associated with the port of the demodulation reference signal transmitted by the first node on the Y subcarriers. Among them, the content of the port of the demodulation reference signal transmitted by the first node on the subcarriers of the first time domain symbol corresponding to the Y subcarrier frequency domain positions may include the demodulation reference signal and data corresponding to the demodulation reference signal port, while the content of the phase tracking reference signal associated with the port of the demodulation reference signal transmitted on the Y subcarriers may include the demodulation reference signal at the corresponding position of the demodulation reference signal port. The number of time domain symbols between any two adjacent time domain symbols transmitted to the phase tracking reference signal in the set of time domain symbols allocated to the physical data channel is a fixed value F. That is, the number of time domain symbols between any two adjacent time domain symbols in the set of time domain symbols allocated to the physical data channel is equal and is a fixed value F; or, the number of time domain symbols between any two adjacent time domain symbols transmitted to the phase tracking reference signal in the set of time domain symbols allocated to the physical data channel is one of the three values H, (H + 1), and (H + 2). That is, the number of time domain symbols between any two adjacent time domain symbols in the set of time domain symbols allocated to the physical data channel may be different, but the specific value may be one of the three values H, (H + 1), and (H + 2), where F and H are integers greater than or equal to 0.

[0063] In an exemplary embodiment, the first node may transmit the demodulation reference signal of physical data channel DMRS port 0 to the second node using subcarriers 0 / 2 / 4 / 6 / 8 on the first time-domain symbol. The first node transmits the phase-tracking reference signal associated with DMRS port 0 to the second node using subcarriers 0 / 4 / 8 on the second time domain. If the content of DMRS port 0 transmitted by the first node on the subcarriers of the first time-domain symbol corresponding to the Y subcarrier frequency-domain positions is different from the content of the phase-noise reference signal associated with the demodulation reference signal port transmitted by the first node on the Y subcarriers, then in the set of time-domain symbols allocated to the physical data channel, the number of time-domain symbols between any two adjacent time-domain symbols transmitting the phase-tracking reference signal is a fixed value F, or one of the three values H, (H + 1), (H + 2), where F and H are integers greater than or equal to 0. For example, if the time-domain symbols allocated to the physical data channel are time-domain symbol 0 to time-domain symbol 8, and the phase-tracking reference signal is transmitted on time-domain symbols 1, 3, 5, 7, then the value of F is 1. Another example, if the time-domain symbols allocated to the physical data channel are time-domain symbol 0 to time-domain symbol 8, and the demodulation reference signal is transmitted on time-domain symbol 3, then the phase-tracking reference signal is transmitted on time-domain symbols 1, 2, 5, 7, and at this time the number of time-domain symbols between adjacent time-domain symbols transmitting the phase-tracking reference signal is one of the three values 0, 1, 2. Another example, if the time-domain symbols allocated to the physical data channel are time-domain symbol 0 to time-domain symbol 8, and the demodulation reference signal is transmitted on time-domain symbol 3, then the phase-tracking reference signal is transmitted on time-domain symbols 1, 4, 5, 7, and at this time the number of time-domain symbols between adjacent time-domain symbols transmitting the phase-tracking reference signal is one of the three values 0, 1, 2.

[0064] In some application embodiments, it further includes: data retransmission of the physical data channel, where the number of time-domain symbols of the phase-tracking reference signal used for retransmission is greater than or equal to the number of time-domain symbols of the phase-tracking reference signal used for the first transmission;

[0065] Or, the number of subcarriers of the phase-tracking reference signal used for retransmission on the corresponding time-domain symbols is greater than or equal to the number of subcarriers of the phase-tracking parameter signal used for the first transmission on the corresponding time-domain symbols;

[0066] Or, the transmission power of the phase-tracking reference signal used for retransmission is greater than or equal to the transmission power of the phase-tracking reference signal used for the first transmission.

[0067] In the embodiments of the present application, the physical data channel supports data retransmission. The number of time-domain symbols of the phase-tracking reference signal used for retransmission is greater than or equal to the number of time-domain symbols of the phase-tracking reference signal used for the first transmission. Or, the number of subcarriers of the phase-tracking reference signal used for retransmission on the time-domain symbols is greater than or equal to the number of subcarriers of the phase-tracking reference signal used for the first transmission on the corresponding time-domain symbols. Or, the transmission power of the phase-tracking reference signal used for retransmission is greater than or equal to the transmission power of the phase-tracking reference signal used for the first transmission.

[0068] In an exemplary embodiment, the first node may transmit the demodulation reference signal of the physical data channel DMRS port 0 to the second node using subcarriers 0 / 2 / 4 / 6 / 8 on the first time-domain symbol. The first node transmits the phase-tracking reference signal associated with DMRS port 0 to the second node using subcarriers 0 / 4 / 8 on the second time-domain. If the data of the physical data channel needs to be retransmitted, the number of time-domain symbols of the phase-noise reference signal used for retransmission is greater than or equal to the number of time-domain symbols of the phase-noise reference signal used for the first transmission; or the number of subcarriers of the phase-noise reference signal used for retransmission on the corresponding time-domain symbols is greater than or equal to the number of subcarriers of the phase-noise reference signal used for the first transmission on the corresponding time-domain symbols, or the transmission power of the phase-noise reference signal used for retransmission is greater than or equal to the transmission power of the phase-noise reference signal used for the first transmission.

[0069] Figure 8 FIG. is a flowchart of another method for transmitting a phase-tracking reference signal provided by the embodiments of the present application. The embodiments of the present application are applicable to the case of transmitting a phase-tracking reference signal. This method may be executed by a phase-tracking reference signal transmission device, and the device may be implemented by software and / or hardware methods and is generally integrated in a base station or a terminal device. As Figure 8 shown, the method provided by the embodiments of the present application specifically includes the following steps:

[0070] Step 210: Receive the demodulation reference signal of the demodulation reference signal port of the physical data channel transmitted by the first node using X subcarriers on the first time-domain symbol.

[0071] In the embodiments of the present application, the first node may transmit the demodulation reference signal to the second node using X subcarriers on the first time-domain symbol, and the second node may receive the demodulation reference information transmitted by the first node. The demodulation reference signal corresponds to the demodulation reference signal port of the physical data channel.

[0072] Step 220: Receive the phase-tracking reference signal associated with the demodulation reference signal port transmitted by the first node using Y subcarriers on the second time-domain symbol; where X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0073] Specifically, the second node may receive a phase tracking reference signal sent by the first node on Y subcarriers in a second time domain symbol. The phase tracking reference signal may be associated with a demodulation reference signal port sent on a demodulation reference signal transmitted in a first time domain symbol. Then, the frequency domain positions of the Y subcarriers may be a subset of the frequency domain positions of the X subcarriers.

[0074] In some application embodiments, among the X subcarriers, there are X1 subcarriers that only transmit demodulation reference signals, and there are X2 subcarriers that transmit demodulation reference signals and data. The frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X1 subcarriers.

[0075] In some application embodiments, among the X subcarriers, there are X1 subcarriers that only transmit demodulation reference signals, and there are X2 subcarriers that transmit demodulation reference signals and data. At least one of the frequency domain positions of the Y subcarriers is the same as one of the frequency domain positions of the X1 subcarriers.

[0076] In some application embodiments, all the subcarriers that transmit demodulation reference signals among the X subcarriers transmit both demodulation reference signals and data, and among the X subcarriers, there are X3 subcarriers on which the number of data bits carried is less than the number of data bits carried on other subcarriers of the X subcarriers. The frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X3 subcarriers.

[0077] In some application embodiments, all the subcarriers that transmit demodulation reference signals among the X subcarriers transmit both demodulation reference signals and data, and among the X subcarriers, there are X3 subcarriers on which the number of data bits carried is less than the number of data bits carried on other subcarriers of the X subcarriers. At least one of the frequency domain positions of the Y subcarriers is the same as one of the frequency domain positions of the X1 subcarriers.

[0078] In some application embodiments, it further includes at least one of the following:

[0079] Determining at least one of the time domain density, the number of time domain symbols, and the time domain position for transmitting the phase tracking reference signal based at least on the constellation mapping method corresponding to the modulation order of the data carried by the physical data channel;

[0080] Determining at least one of the subcarrier density, the number of subcarriers, and the subcarrier position for transmitting the phase tracking parameter signal based at least on the constellation mapping method corresponding to the modulation order of the data carried by the physical data channel.

[0081] In some application embodiments, whether the subcarriers used for the phase tracking reference signal carry data and / or signals on other demodulation reference signal ports of the first node is determined through negotiation with the first node that sends the phase tracking reference signal or is default-configured.

[0082] In some application embodiments, the demodulation reference signal and data of the demodulation reference signal port are transmitted on the subcarriers of the first time-frequency domain symbol corresponding to the Y subcarrier frequency domain positions. The content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port in the first time domain symbol and the demodulation reference signal transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions. Alternatively, the content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port in the first time domain symbol and the demodulation reference signal and data transmitted on the subcarriers corresponding to the Y subcarrier frequency domain positions.

[0083] In some application embodiments, the content of the demodulation reference signal port transmitted on the subcarriers of the first time domain symbol corresponding to the Y subcarrier frequency domain positions is different from the content of the phase tracking reference signal associated with the demodulation reference signal port transmitted on the Y subcarriers. Among the set of time domain symbols allocated to the physical data channel, the number of time domain symbols between any two adjacent time domain symbols transmitting the phase tracking reference signal is a fixed value of F or one of the three values of H, (H + 1), and (H + 2), where F and H are integers greater than or equal to 0.

[0084] In some application embodiments, it further includes: retransmission of the data of the physical data channel, and the number of time domain symbols of the phase tracking reference signal used for retransmission is greater than or equal to the number of time domain symbols of the phase tracking reference signal used for the first transmission;

[0085] Alternatively, the number of subcarriers of the phase tracking reference signal used for retransmission on the corresponding time domain symbols is greater than or equal to the number of subcarriers of the phase tracking parameter signal used for the first transmission on the corresponding time domain symbols;

[0086] Alternatively, the transmission power of the phase tracking reference signal used for retransmission is greater than or equal to the transmission function of the phase tracking reference signal used for the first transmission.

[0087] Figure 9 It is a schematic structural diagram of a phase tracking reference signal transmission device provided by an embodiment of the present application. This device can execute the phase tracking reference signal transmission method provided by any embodiment of the present application, and has corresponding functional modules and beneficial effects for executing the method. This device can be implemented by software and / or hardware. As Figure 9 shown, the device provided by the embodiment of the present application specifically includes:

[0088] A demodulation and transmission module 310, configured to transmit the demodulation reference signal of the demodulation reference signal port of the physical data channel on X subcarriers in the first time domain symbol.

[0089] The phase tracking transmission module 320 is configured to transmit a phase tracking reference signal associated with a demodulation reference signal port on the second time-domain symbol using Y subcarriers; where X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0090] Figure 10 FIG. is a schematic structural diagram of another phase tracking reference signal transmission device provided by an embodiment of the present application. The device can execute the phase tracking reference signal transmission method provided by any embodiment of the present application, and has corresponding functional modules and beneficial effects for executing the method. The device can be implemented by software and / or hardware. As Figure 10 shown, the device provided by the embodiment of the present application specifically includes:

[0091] The demodulation receiving module 410 is configured to receive a demodulation reference signal of a demodulation reference signal port of a physical data channel transmitted by the first node using X subcarriers on the first time-domain symbol.

[0092] The phase tracking receiving module 420 is configured to receive a phase tracking reference signal associated with a demodulation reference signal port transmitted by the first node using Y subcarriers on the second time-domain symbol; where X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0093] Figure 11 FIG. Figure 11 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device includes a processor 10, a memory 11, an input device 12, and an output device 13; the number of processors 10 in the electronic device can be one or more. Taking one processor 10 as an example; the processor 10, the memory 11, the input device 12, and the output device 13 in the electronic device can be connected through a bus or other means, Figure 11 and taking the connection through a bus as an example.

[0094] The memory 11, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the modules corresponding to the micro deformation monitoring device in the embodiments of the present application (the demodulation transmission module 310 and the phase tracking transmission module 320, or the demodulation receiving module 410 and the phase tracking receiving module 420). The processor 10 executes various functional applications and data processing of the electronic device by running the software programs, instructions, and modules stored in the memory 11, that is, implementing the above method.

[0095] The memory 11 may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 11 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 11 may further include a memory remotely provided with respect to the processor 10, and these remote memories may be connected to the electronic device through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0096] The input device 12 may be used to receive input digital or character information, and generate key signal inputs related to the user settings and function controls of the electronic device. The output device 13 may include a display device such as a display screen.

[0097] The embodiment of the present application also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute a phase tracking reference signal transmission method when executed by a computer processor. This method is applied to a first node, and this method includes:

[0098] Transmit the demodulation reference signal of the demodulation reference signal port of the physical data channel using X subcarriers on a first time-domain symbol;

[0099] Transmit the phase tracking reference signal associated with the demodulation reference signal port using Y subcarriers on a second time-domain symbol;

[0100] Wherein, X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0101] Alternatively, the computer-executable instructions are used to execute a phase tracking reference signal transmission method when executed by a computer processor. This method is applied to a second node, and this method includes:

[0102] Receive the demodulation reference signal of the demodulation reference signal port of the physical data channel transmitted by the first node using X subcarriers on a first time-domain symbol;

[0103] Receive the phase tracking reference signal associated with the demodulation reference signal port transmitted by the first node using Y subcarriers on a second time-domain symbol;

[0104] Wherein, X is an integer greater than 0, Y is an integer greater than 0 and less than or equal to X, and the frequency-domain positions of the Y subcarriers are a subset of the frequency-domain positions of the X subcarriers.

[0105] From the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software and necessary general-purpose hardware. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as a floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk, or optical disc of a computer, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present application.

[0106] It should be noted that in the embodiments of the above device, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of mutual distinction and do not limit the protection scope of the present application.

[0107] Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the devices and equipment, can be implemented as software, firmware, hardware, and their appropriate combinations.

[0108] In a hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be executed by the cooperation of several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application specific integrated circuit. The corresponding software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes but is not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that a communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium.

[0109] The above content has illustrated the preferred embodiments of the present invention with reference to the accompanying drawings, and thus does not limit the scope of the rights of the present invention. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the scope and essence of the present invention shall fall within the scope of the rights of the present invention.

Claims

1. A phase tracking reference signal transmission method, characterized in that: Applied to the first node, the method comprises: Send a demodulation reference signal of a demodulation reference signal port of a physical data channel using X subcarriers on a first time domain symbol; Sending a phase tracking reference signal associated with the demodulation reference signal port using Y subcarriers on a second time domain symbol; The X is an integer greater than 0, the Y is an integer greater than 0 and less than or equal to X, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X subcarriers.

2. The method according to claim 1, characterized in that: Among the X subcarriers, X1 subcarriers only send demodulation reference signals, and X2 subcarriers send demodulation reference signals and data. The frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X1 subcarriers.

3. The method according to claim 1, characterized in that: Among the X subcarriers, X1 subcarriers only send demodulation reference signals, and X2 subcarriers send demodulation reference signals and data, and at least one frequency domain position of the frequency domain positions of the Y subcarriers is the same as one frequency domain position of the frequency domain positions of the X1 subcarriers.

4. The method according to claim 1, characterized in that: The subcarriers that send the demodulation reference signal among the X subcarriers all send the demodulation reference signal and data, and the number of data bits carried on X3 subcarriers among the X subcarriers is less than the number of data bits carried on other subcarriers among the X subcarriers, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X3 subcarriers.

5. The method according to claim 1, characterized in that: The subcarriers that send the demodulation reference signal among the X subcarriers both send the demodulation reference signal and data, and the number of data bits carried on X3 subcarriers among the X subcarriers is less than the number of data bits carried on other subcarriers among the X subcarriers, and at least one frequency domain position among the frequency domain positions of the Y subcarriers is the same as one frequency domain position among the frequency domain positions of the X1 subcarriers.

6. The method according to claim 1, characterized in that: Also includes at least one of the following: Determine at least one of the time domain density, the number of time domain symbols, and the time domain position of transmitting the phase tracking reference signal based at least on a constellation diagram mapping method corresponding to the modulation order of the data carried by the physical data channel; At least one of the subcarrier density, the number of subcarriers, and the subcarrier position for transmitting the phase tracking parameter signal is determined based on a constellation diagram mapping method corresponding to the modulation order of the data carried by the physical data channel.

7. According to the method of claim 1, whether the subcarrier used by the phase tracking reference signal carries the data and / or signal on other demodulation reference signal ports of the first node is determined by negotiation with the second node receiving the phase tracking reference signal or configured by default.

8. According to the method of claim 1, what is sent on the subcarrier of the first time-frequency domain symbol corresponding to the frequency domain positions of the Y subcarriers is the demodulation reference signal and data of the demodulation reference signal port, and the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port sent on the subcarrier corresponding to the frequency domain positions of the Y subcarriers in the first time domain symbol, or, the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers is the demodulation reference signal and data of the demodulation reference signal port sent on the subcarrier corresponding to the frequency domain positions of the Y subcarriers in the first time domain symbol.

9. The method according to claim 1, characterized in that: The content of the demodulation reference signal port sent on the subcarrier of the first time domain symbol corresponding to the frequency domain position of the Y subcarriers is different from the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers. In the time domain symbol set allocated to the physical data channel, the number of time domain symbols between any two adjacent time domain symbols for sending the phase tracking reference signal is a fixed value F or one of the three values ​​of H, (H+1) and (H+2), where F and H are integers greater than or equal to 0.

10. The method according to claim 1, characterized in that: Also includes: In data retransmission of the physical data channel, the number of time domain symbols of the phase tracking reference signal used in the retransmission is greater than or equal to the number of time domain symbols of the phase tracking reference signal used in the initial transmission; Alternatively, the number of subcarriers of the phase tracking reference signal used for retransmission on the corresponding time domain symbol is greater than or equal to the number of subcarriers of the phase tracking parameter signal used for initial transmission on the corresponding time domain symbol; Alternatively, the transmission power of the phase tracking reference signal used for retransmission is greater than or equal to the transmission power of the phase tracking reference signal used for initial transmission.

11. A method for transmitting a phase tracking reference signal, characterized in that: Applied to the second node, the method comprises: Receiving a demodulation reference signal of a demodulation reference signal port of a physical data channel sent by a first node using X subcarriers in a first time domain symbol; receiving a phase tracking reference signal associated with the demodulation reference signal port and sent by the first node using Y subcarriers in a second time domain symbol; The X is an integer greater than 0, the Y is an integer greater than 0 and less than or equal to X, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X subcarriers.

12. The method according to claim 11, characterized in that: Among the X subcarriers, X1 subcarriers only send demodulation reference signals, and X2 subcarriers send demodulation reference signals and data. The frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X1 subcarriers.

13. The method according to claim 11, characterized in that: Among the X subcarriers, X1 subcarriers only send demodulation reference signals, and X2 subcarriers send demodulation reference signals and data, and at least one frequency domain position of the frequency domain positions of the Y subcarriers is the same as one frequency domain position of the frequency domain positions of the X1 subcarriers.

14. The method according to claim 11, characterized in that: The subcarriers that send the demodulation reference signal among the X subcarriers all send the demodulation reference signal and data, and the number of data bits carried on X3 subcarriers among the X subcarriers is less than the number of data bits carried on other subcarriers among the X subcarriers, and the frequency domain positions of the Y subcarriers are a subset of the frequency domain positions of the X3 subcarriers.

15. The method according to claim 11, characterized in that: The subcarriers that send the demodulation reference signal among the X subcarriers both send the demodulation reference signal and data, and the number of data bits carried on X3 subcarriers among the X subcarriers is less than the number of data bits carried on other subcarriers among the X subcarriers, and at least one frequency domain position among the frequency domain positions of the Y subcarriers is the same as one frequency domain position among the frequency domain positions of the X1 subcarriers.

16. The method according to claim 11, characterized in that: Also includes at least one of the following: Determine at least one of the time domain density, the number of time domain symbols, and the time domain position of transmitting the phase tracking reference signal based at least on a constellation diagram mapping method corresponding to the modulation order of the data carried by the physical data channel; At least one of the subcarrier density, the number of subcarriers, and the subcarrier position for transmitting the phase tracking parameter signal is determined based on a constellation diagram mapping method corresponding to the modulation order of the data carried by the physical data channel.

17. According to the method of claim 11, whether the subcarrier used by the phase tracking reference signal carries the data and / or signal on other demodulation reference signal ports of the first node is determined by negotiation with the first node sending the phase tracking reference signal or configured by default.

18. According to the method of claim 11, what is sent on the subcarrier of the first time-frequency domain symbol corresponding to the frequency domain positions of the Y subcarriers is the demodulation reference signal and data of the demodulation reference signal port, and the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers is the demodulation reference signal of the demodulation reference signal port sent on the subcarrier corresponding to the frequency domain positions of the Y subcarriers in the first time domain symbol, or, the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers is the demodulation reference signal and data of the demodulation reference signal port sent on the subcarrier corresponding to the frequency domain positions of the Y subcarriers in the first time domain symbol.

19. The method according to claim 11, characterized in that: The content of the demodulation reference signal port sent on the subcarrier of the first time domain symbol corresponding to the frequency domain position of the Y subcarriers is different from the content of the phase tracking reference signal associated with the demodulation reference signal port sent on the Y subcarriers. In the time domain symbol set allocated to the physical data channel, the number of time domain symbols between any two adjacent time domain symbols for sending the phase tracking reference signal is a fixed value F or one of the three values ​​of H, (H+1) and (H+2), where F and H are integers greater than or equal to 0.

20. The method according to claim 11, characterized in that: Also includes: In data retransmission of the physical data channel, the number of time domain symbols of the phase tracking reference signal used in the retransmission is greater than or equal to the number of time domain symbols of the phase tracking reference signal used in the initial transmission; Alternatively, the number of subcarriers of the phase tracking reference signal used for retransmission on the corresponding time domain symbol is greater than or equal to the number of subcarriers of the phase tracking parameter signal used for initial transmission on the corresponding time domain symbol; Alternatively, the transmission power of the phase tracking reference signal used for retransmission is greater than or equal to the transmission power of the phase tracking reference signal used for initial transmission.

21. An electronic device, characterized in that: The electronic device comprises: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the phase tracking reference signal transmission method as described in any one of claims 1-20.

22. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores one or more programs, and the one or more programs are executed by one or more processors to implement the method for transmitting a phase tracking reference signal as described in any one of claims 1-20.

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