Communication method, communication apparatus, storage medium, and program product

Abstract

Provided are a communication method, a communication apparatus, a storage medium, and a program product. The method is applied to a first node, and comprises: receiving control information sent by a second node, wherein the control information is used for scheduling a physical channel, and resources of the physical channel include a reserved resource; and on the basis of the control information and on the resources of the physical channel, sending the physical channel, or the physical channel and a phase tracking reference signal to the second node.

Description

Communication methods, communication devices, storage media and software products

[0001] This disclosure claims priority to Chinese patent application No. 202510080419.0, filed on January 16, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, storage medium, and program product. Background Technology

[0003] The terminal sends a Physical Uplink Shared Channel (PUSCH) signal to the base station. Some resources within the PUSCH can remain unsigned, allowing the receiver to measure interference or noise, thus improving the demodulation performance of the PUSCH. In some cases, the terminal needs to send a Phase Tracking Reference Signal (PTRS) to enable the receiver to measure phase noise. In this case, the transmission power of the PTRS needs to be specified to ensure accurate measurement or estimation by the receiver. Summary of the Invention

[0004] On the one hand, a communication method is provided, applied to the first node, including:

[0005] Receive control information sent by the second node. The control information is used to schedule the physical channel. The resources of the physical channel include reserved resources.

[0006] Based on control information, the physical channel is transmitted to the second node on the physical channel resources, or the physical channel and phase tracking reference signal are transmitted to the second node on the physical channel resources.

[0007] On the other hand, a communication device is provided, comprising: a receiving module and a transmitting module;

[0008] The receiving module is used to receive control information sent by the second node. The control information is used to schedule the physical channel, and the resources of the physical channel include reserved resources.

[0009] The transmitting module is used to transmit the physical channel to the second node on the physical channel resources based on control information, or to transmit the physical channel and phase tracking reference signal to the second node on the physical channel resources.

[0010] On the other hand, a communication method is provided for application to a second node, the method including:

[0011] Send control information to the first node. The control information is used to schedule the physical channel. The resources of the physical channel include reserved resources.

[0012] Receive the physical channel transmitted by the first node on the physical channel resources, or receive the physical channel transmitted by the first node and the phase tracking reference signal on the physical channel resources.

[0013] In another aspect, a communication device is provided, comprising: a transmitting module and a receiving module;

[0014] The sending module is used to send control information to the first node. The control information is used to schedule the physical channel, and the resources of the physical channel include reserved resources.

[0015] The receiving module is used to receive the physical channel transmitted by the first node on the physical channel resources, or to receive the physical channel transmitted by the first node and the phase tracking reference signal on the physical channel resources.

[0016] In another aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor implements the above-described communication method when executing the computer program.

[0017] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the above-described communication method.

[0018] In another aspect, a computer program product is provided, which includes computer program instructions that, when executed by a processor, implement the aforementioned communication method. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings.

[0020] Figure 1 is an architecture diagram of a communication system according to some embodiments.

[0021] Figure 2 is a flowchart of a communication method according to some embodiments.

[0022] Figure 3 is a schematic diagram of a physical uplink shared channel resource including reserved resources according to some embodiments.

[0023] Figure 4 is a flowchart of another communication method according to some embodiments.

[0024] Figure 5 is a block diagram of a communication device according to some embodiments.

[0025] Figure 6 is a block diagram of another communication device according to some embodiments.

[0026] Figure 7 is a block diagram of another communication device according to some embodiments. Detailed Implementation

[0027] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] It should be noted that, in this disclosure, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0029] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0030] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "more than one" means two or more.

[0031] Furthermore, the embodiments or technical features in the embodiments of this disclosure can be combined arbitrarily, and such arbitrarily combined is still within the protection scope of this disclosure.

[0032] The terminal sends a Physical Uplink Shared Channel (PHS) signal to the base station. Some resources within the PHS can remain unsigned, allowing the receiver to measure interference or noise and improve the PHS demodulation performance. In some cases, the terminal needs to send a phase tracking reference signal to enable the receiver to measure phase noise. In this situation, the transmission power of the phase tracking reference signal needs to be explicitly defined to ensure accurate measurement or estimation by the receiver.

[0033] Currently, there is a lack of a communication method that, after introducing reserved resources, can reliably process the transmission power of the physical uplink shared channel or the phase tracking reference signal.

[0034] To address the aforementioned technical problems, embodiments of this disclosure provide a communication method that schedules physical channels using control information. Since the resources of the physical channel include reserved resources, based on the control information, a first node can transmit the physical channel or a physical channel combined with a phase tracking signal to a second node using the physical channel resources. Furthermore, this disclosure also provides a method for reporting measurement results.

[0035] The communication method provided in this disclosure can be applied to systems with various communication standards. For example, the systems to which the communication method provided in this disclosure is applicable include, but are not limited to, long-term evolution (LTE) systems, various versions based on LTE evolution, 5th generation mobile communication technology (5G) systems, future mobile communication networks (such as 6th generation mobile communication networks (6G), 7th generation mobile communication networks (7G)), or multiple converged communication systems. Furthermore, the communication method provided in this disclosure can also be applied to future-oriented communication systems.

[0036] For example, the above communication method can be applied to the communication system shown in FIG1. ​​As shown in FIG1, the communication system includes: a first node 101 and a second node 102.

[0037] Here, the first node 101 is used to receive control information sent by the second node 102. The control information is used to schedule the physical channel, and the resources of the physical channel include reserved resources; or, it is used to send the physical channel, or the physical channel and phase tracking reference signal to the second node 102 on the resources of the physical channel based on the control information.

[0038] The second node 102 is used to send control information to the first node 101. The control information is used to schedule the physical channel, and the resources of the physical channel include reserved resources; or it is used to receive the physical channel sent by the first node 101 on the resources of the physical channel, or the physical channel and the phase tracking reference signal.

[0039] In some embodiments, the first node 101 can be a terminal.

[0040] In some embodiments, the second node 102 may be a base station.

[0041] In some embodiments, the terminal can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as on ships); and it can also be deployed in the air (e.g., on airplanes, balloons, and satellites). The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments of this application do not limit the application scenarios. The term "terminal" can sometimes also refer to a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc., but the embodiments of this application do not limit this to these terms.

[0042] In some embodiments, the base station may be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system. The base station may include various macro base stations, micro base stations, femtocell base stations, wireless remote extensions, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network-side devices such as primary cells and secondary cells.

[0043] It should be noted that Figure 1 is only an exemplary framework diagram, and the number of devices included in Figure 1 and the names of each device are not limited.

[0044] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0045] The communication method provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0046] The communication method provided in this embodiment can be applied to the first node 101 in the communication system shown in FIG1. ​​FIG2 shows a flowchart of a communication method, which includes the following steps S201 and S202:

[0047] In S201, control information sent by the second node is received.

[0048] Here, control information is used to schedule physical channels, and the resources of physical channels include reserved resources.

[0049] In some embodiments, control information is used to schedule at least one physical channel.

[0050] For example, the physical channel can be the physical uplink shared channel and / or the physical uplink control channel (PUCCH).

[0051] In some embodiments, the control information may include at least one of the following: downlink control information (DCI), medium access control (MAC) control element (CE), or radio resource control (RRC) signaling.

[0052] In S202, based on control information, the physical channel is transmitted to the second node on the physical channel resources, or the physical channel and phase tracking reference signal are transmitted to the second node on the physical channel resources.

[0053] It should be understood that since control information can schedule physical channels, and physical channel resources include reserved resources, based on control information, the first node can send physical channel or physical channel and phase tracking signals to the second node on the physical channel resources.

[0054] In some embodiments, the first node determines whether to send a phase tracking reference signal or whether a phase tracking reference signal exists, based on the base station configuration.

[0055] In some embodiments, the method further includes receiving first configuration information from a second node.

[0056] In some embodiments, the first configuration information is used to configure at least one of the following: the frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power configuration of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, the frequency domain offset or the sample density.

[0057] In some embodiments, the configuration information may include at least one of the following: downlink control information, media access control (MAC) control element (CE), or radio resource management signaling.

[0058] It should be noted that the phase tracking reference signal occupies one or more orthogonal frequency division multiplexing (OFDM) symbols in the time domain. The time domain spacing (or time domain density, hereinafter collectively referred to as time domain spacing) of the phase tracking reference signal is the interval between two consecutive phase tracking reference signals occupying orthogonal frequency division multiplexing symbols.

[0059] For example, the time-domain interval is the number of orthogonal frequency division multiplexing (OFDM) symbols separated by two consecutive OFDM symbols, or the difference in the indices of two consecutive OFDM symbols. If the time-domain interval of the phase tracking reference signal is 1, then the phase tracking reference signal is present on each OFDM symbol of the physical uplink shared channel. If the time-domain interval of the phase tracking reference signal is 2, assuming the physical uplink shared channel occupies OFDM symbols 0-6, then the phase tracking reference signal may be on OFDM symbols 1, 3, and 5. The OFDM symbols occupied by the phase tracking reference signal in the physical uplink shared channel resources are determined by at least one of the time-domain interval of the phase tracking reference signal, the physical uplink shared channel resources (time-domain resources), or the location of the demodulation reference signal (DMRS) of the physical uplink shared channel.

[0060] In some embodiments, the time-domain interval of the phase tracking reference signal is configured by the base station.

[0061] In some embodiments, the time-domain spacing of the phase tracking reference signal is related to the modulation and coding scheme (MCS) of the physical uplink shared channel. The larger the MCS value, the smaller the time-domain spacing.

[0062] For example, Table 1 shows the relationship between the time-domain interval of the phase tracking reference signal and the MCS:

[0063] Table 1

[0064] Here, if the MCS of the scheduled physical uplink shared channel is less than MCS1, the phase tracking reference signal does not exist. That is, there is no phase tracking reference signal in the physical uplink shared channel. The UE only transmits the physical uplink shared channel. If the MCS of the physical uplink shared channel is greater than or equal to MCS1 and less than MCS2, the time-domain interval of the phase tracking reference signal is 4. In this case, the phase tracking reference signal exists in the physical uplink shared channel. The UE transmits both the physical uplink shared channel and the phase tracking reference signal. If the MCS of the physical uplink shared channel is greater than or equal to MCS2 and less than MCS3, the time-domain interval of the phase tracking reference signal is 2. If the MCS of the physical uplink shared channel is greater than or equal to MCS3 and less than MCS4, the time-domain interval of the phase tracking reference signal is 1. In this case, the time-domain interval configuration of the physical uplink shared channel includes one or more configured MCS values ​​(e.g., MCS1, MCS2, MCS3, MCS4, etc.) and / or a table indicating the relationship between the time-domain interval of the phase tracking reference signal and the MCS.

[0065] Within a resource block (RB), a phase tracking reference signal occupies one or more resource elements (REs). Further, one antenna port of a phase tracking reference signal occupies one RE. In different RBs, the phase tracking reference signal occupies the same RE (or REs at the same location, or REs with the same index). The frequency domain spacing (or frequency domain density, hereinafter collectively referred to as frequency domain spacing) of the phase tracking reference signal is the interval between two consecutive REs (or RBs) occupied by the phase tracking reference signal.

[0066] For example, the frequency domain spacing is the number of REs (or RBs) separating two consecutive REs (or RBs) or the difference in the indices of two consecutive REs (or RBs). In some cases, the frequency domain spacing of the phase tracking reference signal is configured by the base station. In some cases, the frequency domain spacing of the phase tracking reference signal is related to the bandwidth of the physical uplink shared channel. The bandwidth of the physical uplink shared channel includes the number of RBs in the physical uplink shared channel. The larger the bandwidth of the physical uplink shared channel, the larger the frequency domain spacing of the phase tracking reference signal.

[0067] For example, Table 2 shows the relationship between the frequency domain spacing and the number of RBs of a phase tracking reference signal:

[0068] Table 2

[0069] Here, if the bandwidth of the scheduled physical uplink shared channel is less than N RB0 The phase tracking reference signal is absent. In other words, there is no phase tracking reference signal in the physical uplink shared channel. The terminal only transmits the physical uplink shared channel. If the bandwidth of the physical uplink shared channel is greater than or equal to N... RB0 And less than N RB1 The frequency spacing of the phase tracking reference signal is 2. At this time, a phase tracking reference signal exists in the physical uplink shared channel. The terminal transmits the physical uplink shared channel and the phase tracking reference signal. If the bandwidth of the physical uplink shared channel is greater than or equal to N... RB1 The time-domain interval of the phase tracking reference signal is 4. At this time, a phase tracking reference signal exists in the physical uplink shared channel. The terminal transmits the physical uplink shared channel and the phase tracking reference signal. In this case, the frequency domain interval configuration of the physical uplink shared channel includes configuring one or more RB values ​​(e.g., N). RB0 N RB1 (etc.) and / or a table indicating the relationship between the frequency domain spacing of the phase tracking reference signal and the number of RBs.

[0070] It should be understood that when the second node has not configured the first configuration information, or when the first node has not received the first configuration information, there is no phase tracking reference signal in the physical uplink shared channel.

[0071] In some embodiments, the base station configures at least one reserved resource (or silent resource, unavailable resource, hereinafter collectively referred to as reserved resource) for the terminal. Alternatively, the protocol predefines at least one reserved resource. This reserved resource comprises one or more time-domain elements in the time domain. The time-domain element includes one of the following: OFDM symbol, slot, sub-slot, radio frame, or subframe. The reserved resource comprises one or more subcarriers, REs, or RBs in the frequency domain. The terminal does not transmit any information on the reserved resource.

[0072] In some embodiments, the resources of the Physical Uplink Shared Channel (PHSC) include reserved resources. The modulation symbols of the PHSC are not mapped to the reserved resources. That is, the modulation symbols are mapped to PHSC resources other than the reserved resources. When mapping modulation symbols to PHSC resources, the reserved resources are skipped.

[0073] For example, Figure 3 is a schematic diagram of a physical uplink shared channel resource including reserved resources according to an embodiment of this disclosure. The physical uplink shared channel includes 8 RBs in the frequency domain. In the frequency domain, each RB includes 12 REs, represented by REs 0-11. The physical uplink shared channel occupies 96 (12*8) REs in the frequency domain. The physical uplink shared channel includes 7 OFDM symbols in the time domain, represented by OFDM symbols 0-6. In the time domain, the reserved resources include OFDM symbols 0 and 4. In the frequency domain, the reserved resources include odd-numbered REs (i.e., REs with odd-numbered indices). Therefore, the reserved resources include REs 1, 3, 5, 7, 9, and 11 for each RB in OFDM symbols 0 and 4, respectively.

[0074] In some embodiments, the transmission power of the phase tracking reference signal is determined based on at least one of the transmission power of the physical channel and a first ratio. The first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal. The transmission power of the phase tracking reference signal can be accurately and reliably determined using the first ratio and the transmission power of the physical channel.

[0075] It should be noted that the first ratio can be either the transmit power of the physical channel to the transmit power of the phase tracking reference signal, or the transmit power of the phase tracking reference signal to the transmit power of the physical channel. The transmit power of the phase tracking reference signal can be obtained by dividing the transmit power of the physical channel by the corresponding ratio of the transmit power of the physical channel to the transmit power of the phase tracking reference signal. Alternatively, the transmit power of the phase tracking reference signal can be obtained by multiplying the corresponding ratio of the transmit power of the phase tracking reference signal to the transmit power of the physical channel by the transmit power of the physical channel.

[0076] In some embodiments, a portion of the time-domain resources of the physical channel include reserved resources; the physical channel is one of the following:

[0077] There are no physical channels on OFDM symbols with reserved resources;

[0078] Physical channels exist on OFDM symbols with reserved resources;

[0079] The physical channel on the OFDM symbol where the phase tracking reference signal is located.

[0080] It should be understood that when the physical channel is a physical channel on an OFDM symbol without reserved resources, the transmission power of the phase tracking reference signal transmitted by the first node is determined based on the transmission power of the physical channel on the OFDM symbol without reserved resources and the first ratio.

[0081] When the physical channel is a physical channel on an OFDM symbol with reserved resources, the transmission power of the phase tracking reference signal transmitted by the first node is determined based on the transmission power of the physical channel on the OFDM symbol with reserved resources and a first ratio.

[0082] When the physical channel is the physical channel on the OFDM symbol where the phase tracking reference signal is located, the transmission power of the phase tracking reference signal transmitted by the first node is determined based on the transmission power of the physical channel on the OFDM symbol where the phase tracking reference signal is located and a first ratio.

[0083] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0084] It should be understood that when transmitting physical channel and phase tracking reference signals to a second node on physical channel resources, physical channel and phase tracking reference signals can be transmitted via OFDM symbols. OFDM symbols may or may not have reserved resources. Therefore, the phase tracking reference signal can be a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or it can be a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0085] In some embodiments, the ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following: the number of transmission layers of the physical channel, the transmission mode of the physical channel, the number of antenna ports of the transmitted phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal (or the transmission power configuration of the phase tracking reference signal), the symbol type of the OFDM symbol in which the phase tracking reference signal is located, or the codebook type transmitted by the physical channel.

[0086] For example, the ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel can be explained with reference to the embodiments corresponding to Tables 3-8 below.

[0087] In this disclosure, the symbol type of OFDM symbol may include OFDM symbol with reserved resources or OFDM symbol without reserved resources.

[0088] In some embodiments, the transmission mode of the physical channel includes one of the following: full-duplex transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0089] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0090] The phase tracking reference signal has the same transmission power on different OFDM symbols;

[0091] The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol.

[0092] The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0093] It should be understood that having the same transmission power for the phase tracking reference signal on different OFDM symbols ensures that the receiver receives the same transmission power for the phase tracking reference signal on different OFDM symbols. This simplifies the receiver design and reduces the number of parameters that the receiver needs to adjust during reception.

[0094] It should be understood that having the same total transmit power for different OFDM symbols allows for a more balanced power distribution when transmitting different OFDM symbols, simplifying power control at the transmitter. Furthermore, the receiver can design its reception parameters based on the consistent total transmit power for different OFDM symbols, improving data transmission reliability and enhancing the user experience.

[0095] It should be understood that because OFDM symbols with reserved resources and OFDM symbols without reserved resources belong to different symbol categories, different processing may be required during transmission at the transmitting end and during reception at the receiving end to adapt to the communication environment. Therefore, the transmission power of the phase tracking reference signal transmitted on OFDM symbols with reserved resources differs from that transmitted on OFDM symbols without reserved resources. Differentiated transmission power configurations can be implemented when transmitting phase tracking reference signals on OFDM symbols with and without reserved resources to improve the flexibility of signal transmission and ensure transmission reliability.

[0096] In some embodiments, transmitting the physical channel to the second node on physical channel resources, or transmitting the physical channel and phase tracking reference signal to the second node on physical channel resources, is achieved in the following ways:

[0097] Generate modulation symbols; the modulation symbols include the modulation symbols corresponding to the physical channel, or include the modulation symbols corresponding to the physical channel and the modulation symbols corresponding to the phase tracking reference signal;

[0098] Perform Discrete Fourier Transform on the modulation symbols;

[0099] Precoding is performed on the modulation symbols after discrete Fourier transform processing;

[0100] The physical channel that transmits the precoded modulation symbols.

[0101] In some embodiments, the physical channel is transmitted to the second node on the physical channel resources in the following manner:

[0102] Generate modulation symbols; the modulation symbols include those corresponding to the physical channel.

[0103] Perform Discrete Fourier Transform on the modulation symbols;

[0104] Precoding is performed on the modulation symbols after discrete Fourier transform processing;

[0105] The physical channel that transmits the precoded modulation symbols.

[0106] In some embodiments, transmitting the physical channel and phase tracking reference signal to the second node on physical channel resources is achieved in the following manner:

[0107] Generate modulation symbols; the modulation symbols include the modulation symbols corresponding to the physical channel and the modulation symbols corresponding to the phase tracking reference signal;

[0108] Perform Discrete Fourier Transform on the modulation symbols;

[0109] Precoding is performed on the modulation symbols after discrete Fourier transform processing;

[0110] The physical channel that transmits the precoded modulation symbols.

[0111] In some embodiments, performing Discrete Fourier Transform (DFT) processing on the modulation symbols includes performing DFT processing on the modulation symbols in the target OFDM symbols.

[0112] In some embodiments, performing Discrete Fourier Transform (DFT) processing on the modulation symbols in the target OFDM symbol includes repeating or expanding the modulation symbols; the target OFDM symbol is: an OFDM symbol with reserved resources or an OFDM symbol with a number of modulation symbols less than the number of points in the DFT; the number of modulation symbols after repeating or expanding the processing is equal to the number of points in the DFT or equal to the number of resource units of the physical channel in an OFDM symbol without reserved resources.

[0113] It should be understood that by repeating or expanding the modulation symbols, the processing of performing Discrete Fourier Transform (DFT) on OFDM symbols with reserved resources or whose modulation symbol count is less than the number of points in the DFT can be made essentially consistent with the processing of performing DFT on OFDM symbols without reserved resources or whose modulation symbol count is not less than (or equal to) the number of points in the DFT. This reduces the processing complexity of performing DFT on OFDM symbols with reserved resources or whose modulation symbol count is less than the number of points in the DFT, thus improving the efficiency of DFT processing.

[0114] In some embodiments, the repetition process includes repetition of the same modulation symbol and / or repetition of different modulation symbols.

[0115] It should be noted that repeating the same modulation symbol will yield at least two identical modulation symbols. Repeating different modulation symbols will yield at least two different modulation symbols.

[0116] For example, if the same modulation symbol is repeated twice on modulation symbol 1, two modulation symbols 1 can be obtained. If different modulation symbols are repeated twice on modulation symbol 1, modulation symbol 1 and modulation symbol 2 can be obtained (modulation symbol 2 can be obtained by multiplying modulation symbol 1 by a coefficient).

[0117] In some embodiments, the method of repetitive processing is determined based on the location of reserved resources in the OFDM symbol and / or the location of available resources in the OFDM symbol.

[0118] For example, if the reserved resource position in an OFDM symbol is located at an odd number of resource positions (such as resource element positions) or the available resource position in an OFDM symbol is located at an even number of resource positions, the same modulation symbol is repeated on the OFDM symbol. If the reserved resource position in an OFDM symbol is located at an even number of resource positions (such as resource element positions) or the available resource position in an OFDM symbol is located at an odd number of resource positions, different modulation symbols are repeated on the OFDM symbol. Conversely, if the reserved resource position in an OFDM symbol is located at an odd number of resource positions (such as resource element positions) or the available resource position in an OFDM symbol is located at an even number of resource positions, different modulation symbols are repeated on the OFDM symbol. If the reserved resource position in an OFDM symbol is located at an even number of resource positions (such as resource element positions) or the available resource position in an OFDM symbol is located at an odd number of resource positions, the same modulation symbol is repeated on the OFDM symbol.

[0119] In some embodiments, the number of repetitions is determined based on the ratio between the amount of available resources in the OFDM symbol and the amount of resources in the physical channel corresponding to the OFDM symbol.

[0120] It should be understood that the number of repetitions is based on the ratio between the number of available resources in the OFDM symbol and the number of resources in the physical channel corresponding to the OFDM symbol. This ensures that after repeating the modulation symbols on OFDM symbols with reserved resources based on this number of repetitions, the number of modulation symbols obtained is the same as the number of modulation symbols on OFDM symbols without reserved resources. This ensures that the number of modulation symbols that ultimately undergo Discrete Fourier Transform is the same for both OFDM symbol types, making the Discrete Fourier Transform processing of the corresponding modulation symbols on the two OFDM symbol types basically consistent.

[0121] For example, the number of repetitions can be determined by dividing the number of physical channel resources corresponding to an OFDM symbol by the number of available resources in the OFDM symbol.

[0122] The following is an exemplary description of a phase tracking reference signal provided by an embodiment of this disclosure.

[0123] For example, the terminal transmits a phase tracking reference signal at a certain power. The transmission power of the phase tracking reference signal is determined by at least one of the transmission power of the physical uplink shared channel, the power ratio of the physical uplink shared channel to the phase tracking reference signal, and the power ratio of the phase tracking reference signal to the physical uplink shared channel.

[0124] In some cases, the transmission power of the phase tracking reference signal is represented by a power coefficient. The terminal generates a phase tracking reference signal sequence (or reference signal modulation symbols, hereinafter collectively referred to as the reference signal sequence). The generated phase tracking reference signal sequence is multiplied by the power coefficient. The phase tracking reference signal sequence multiplied by the power coefficient is mapped onto a phase tracking reference signal resource. Assuming the generated phase tracking reference signal sequence is r(m), the sequence multiplied by the power coefficient is P1*r(m), where P1 is the power coefficient. The terminal maps the sequence P1*r(m) onto the corresponding resource. The value of the power coefficient is determined by the first parameter.

[0125] In some embodiments, the first parameter is the power ratio of the physical uplink shared channel to the phase tracking reference signal or the power ratio of the phase tracking reference signal to the physical uplink shared channel.

[0126] In some cases, the power ratio from the physical uplink shared channel to the phase tracking reference signal is the reciprocal of the power ratio from the phase tracking reference signal to the physical uplink shared channel.

[0127] In some cases, the power ratio is expressed in decibels (dB). The power ratio from the physical uplink shared channel to the phase tracking reference signal is the inverse of the power ratio from the phase tracking reference signal to the physical uplink shared channel. The first parameter is the power ratio from the phase tracking reference signal to the physical uplink shared channel. The power coefficient is... Here, S1 is the first parameter. The sequence after multiplying by the power coefficient is then... The first parameter is the power ratio from the physical uplink shared channel to the phase tracking reference signal. The power coefficient value is... Here, S1 is the first parameter. The sequence after multiplying by the power coefficient is then... The following example uses the power ratio between the physical uplink shared channel and the phase tracking reference signal to illustrate the method for determining the transmission power of the phase tracking reference signal. All embodiments of this method can be applied to the power ratio between the phase tracking reference signal and the physical uplink shared channel.

[0128] In some embodiments, the transmit power of the phase tracking reference signal is the same on different OFDM symbols. The transmit power of the phase tracking reference signal is determined by at least one of the transmit power of the physical uplink shared channel on a specific OFDM symbol, the power ratio of the physical uplink shared channel to the phase tracking reference signal, and the power ratio of the phase tracking reference signal to the physical uplink shared channel. The specific OFDM symbol is an OFDM symbol without reserved resources, such as OFDM symbols 1, 3, 5, or 6 in Figure 3. The first parameter is the transmit power ratio of the physical uplink shared channel to the phase tracking reference signal on the OFDM symbol without reserved resources. The value of the first parameter is determined by at least one of the number of transmission layers of the physical uplink shared channel, the transmission mode of the physical uplink shared channel, the number of antenna ports of the phase tracking reference signal, and the transmit power configuration.

[0129] For example, as shown in Table 3, one possible value for the first parameter is illustrated:

[0130] Table 3

[0131] Here, the transmit power is configured as configuration 1, the number of transmission layers in the physical uplink shared channel is 1, and the value of the first parameter is 0 for all transmission modes. In this case, the power coefficient is 1 (10^0), meaning the transmit power of the phase tracking reference signal and the physical uplink shared channel is the same. With the transmit power configured as configuration 1 and the number of transmission layers in the physical uplink shared channel being 2, for partially coherent transmission, if the number of antenna ports for the phase tracking reference signal is 1 (which can be understood as the number of antenna ports transmitting the phase tracking reference signal being 1; or as the number of antenna ports corresponding to or mapped to the phase tracking reference signal being 1), then the value of the first parameter is 0 (3*1-3); if the number of antenna ports for the phase tracking reference signal is 2, then the value of the first parameter is approximately 3 (3*2-3). Based on the above description, the value of the power coefficient is approximately... ).

[0132] In some embodiments, the value of the first parameter is determined by at least one of the following: the number of physical uplink shared channel (PHS) transmission layers, the PHS transmission mode, the number of phase tracking reference signal (PTRS) antenna ports, the PHS codebook type, and the transmit power configuration. The number of PHS transmission layers is the total number of PHS layers, the number of PHS layers in one or more antenna port groups, or the number of PHS layers undergoing phase interferometry coding. In some embodiments, one or more PHS layers in one or more antenna port groups are associated with PTRS antenna ports. One or more of the PHS layers undergoing phase interferometry coding are associated with PTRS ports. The PHS transmission mode includes at least one of full coherent transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, and non-codebook-based transmission. The PHS codebook includes at least one of a first type of codebook, a second type of codebook, a third type of codebook, and a fourth type of codebook.

[0133] For example, Table 4 shows another possible value for the first parameter:

[0134] Table 4

[0135] Here, the transmit power is configured as configuration 2, and the transmission type of the physical uplink shared channel is configured as transmission based on the second type codebook. The transmission layer number of the physical uplink shared channel is 6, so the value of the first parameter is approximately 7.78 (from 10*log). 10 (6) Obtained). Based on the above description, the power coefficient value is approximately... (Obtained from 10^(7.78 / 20)). In another case, the transmit power is configured as configuration 1, and the transmission type of the physical uplink shared channel is configured as transmission based on the second type codebook. The number of transmission layers of the physical uplink shared channel is 5, and the number of antenna ports of the PTRS is 2. The first and second layers of the physical uplink shared channel are coherently coded, and the first layer of the physical uplink shared channel is associated with the first PTRS port. The first and second layers of the physical uplink shared channel are located in or mapped to an antenna port group. The third, fourth, and fifth layers of the physical uplink shared channel are coherently coded, and the fourth layer of the physical uplink shared channel is associated with the second PTRS port. The third, fourth, and fifth layers of the physical uplink shared channel are located in or mapped to an antenna port group. For the first PTRS port, its specified physical uplink shared channel layer is the first layer. There are a total of 2 layers (i.e., the first layer and the second layer) in the antenna port group that are coherently coded with the first layer of the physical uplink shared channel, that is, L x =2. At this point, the value of the first parameter is approximately 6.02 (from 10*log). 10 (2*2) is obtained). According to the description above, the power factor value is approximately 2 (obtained from 10^(6.02 / 20)). Therefore, the power factor value of the first PTRS port is approximately 2. For the second PTRS port, its specified physical uplink shared channel layer is layer four. There are a total of 3 layers (i.e., layers three, four, and five) in the antenna port group that are coherently coded with the physical uplink shared channel layer four, that is, L x =3. At this point, the value of the first parameter is approximately 7.78 (from 10*log). 10 (3*2) is obtained). Based on the above description, the power coefficient value is approximately... (Originally obtained from 10^(7.78 / 20)). Therefore, the power factor of the second PTRS port is...

[0136] In some embodiments, the transmit power of the phase tracking reference signal on different OFDM symbols is different. The total transmit power on each OFDM symbol is the same. The total transmit power includes the sum of the physical uplink shared channel transmit power and the phase tracking reference signal transmit power. The transmit power of the phase tracking reference signal is determined by at least one of the physical uplink shared channel transmit power on a specific OFDM symbol, the power ratio of the physical uplink shared channel to the phase tracking reference signal, and the power ratio of the phase tracking reference signal to the physical uplink shared channel. In some embodiments, the value of the first parameter is determined by at least one of the number of physical uplink shared channel transmission layers, the physical uplink shared channel transmission mode, the number of phase tracking reference signal antenna ports, the symbol type of the OFDM symbol containing the phase tracking reference signal, and the transmit power configuration. The OFDM symbol type includes at least one of OFDM symbols containing reserved resources and OFDM symbols not containing reserved resources. That is, the value of the first parameter is determined by at least one of the number of physical uplink shared channel transmission layers, the physical uplink shared channel transmission mode, the number of phase tracking reference signal antenna ports, the transmit power configuration, and whether the OFDM symbol containing the phase tracking reference signal contains reserved resources.

[0137] For example, Table 5 shows another possible value for the first parameter:

[0138] Table 5

[0139] Here, the transmit power is configured as configuration 1, the number of transmission layers of the physical uplink shared channel is 1, and when the phase tracking reference signal is on an OFDM symbol without reserved resources (e.g., symbol 1, 3, 5, or 6), the value of the first parameter is 0 for all transmission modes (obtained by 0+3*0); when the phase tracking reference signal is on an OFDM symbol with reserved resources (e.g., symbol 0 or 4), the value of the first parameter is approximately 3 for all transmission modes (obtained by 0+3*1).

[0140] With the transmit power configured as Configuration 1 and the physical uplink shared channel transmission layer number 4, for partially coherent transmission, if the phase tracking reference signal has 1 antenna port and is on an OFDM symbol without reserved resources, then the value of the first parameter is approximately 3 (obtained from 3*1+3*0); if the phase tracking reference signal has 1 antenna port and is on an OFDM symbol with reserved resources, then the value of the first parameter is approximately 6 (obtained from 3*1+3*1); if the phase tracking reference signal has 2 antenna ports and is on an OFDM symbol without reserved resources, then the value of the first parameter is approximately 6 (obtained from 3*2+3*0); if the phase tracking reference signal has 2 antenna ports and is on an OFDM symbol with reserved resources, then the value of the first parameter is approximately 9 (obtained from 3*2+3*1).

[0141] In some embodiments, the value of the first parameter is determined by at least one of the following: the number of physical uplink shared channel transmission layers, the physical uplink shared channel transmission mode, the number of phase tracking reference signal antenna ports, the physical uplink shared channel codebook type, the symbol type of the OFDM symbol in which the phase tracking reference signal is located, and the transmit power configuration.

[0142] For example, Table 6 shows another possible value for the first parameter:

[0143] Table 6

[0144] Here, the transmit power is configured as configuration 1, and the transmission type of the physical uplink shared channel is configured as transmission based on the fourth type codebook. The number of transmission layers of the physical uplink shared channel is 4. The number of antenna ports for the phase tracking reference signal is 2. When the phase tracking reference signal is on OFDM symbols without reserved resources (e.g., symbols 1, 3, 5, or 6), the value of the first parameter is approximately 3.01 (from 10log). 10 (2) + 3*0 is obtained); when the phase tracking reference signal is on an OFDM symbol with reserved resources (e.g., symbol 0 or 4), the value of the first parameter is approximately 6 (from 10log 10 (2) + 3*1 is obtained.

[0145] In some embodiments, the transmit power of the phase tracking reference signal on a certain OFDM symbol is determined by at least one of the transmit power of the physical uplink shared channel on the same OFDM symbol, the power ratio of the physical uplink shared channel to the phase tracking reference signal, and the power ratio of the phase tracking reference signal to the physical uplink shared channel.

[0146] For example, the transmit power of the phase tracking reference signal on OFDM symbol 0 is determined by at least one of the physical uplink shared channel transmit power on OFDM symbol 0, the power ratio of the physical uplink shared channel to the phase tracking reference signal, and the power ratio of the phase tracking reference signal to the physical uplink shared channel. The first parameter is the power ratio of the physical uplink shared channel to the phase tracking reference signal on the same OFDM symbol. In this case, the value of the first parameter is determined by at least one of the physical uplink shared channel transmission layer number, physical uplink shared channel transmission mode, phase tracking reference signal antenna port number, transmit power configuration, and OFDM symbol type. The OFDM symbol type includes OFDM symbols with reserved resources and OFDM symbols without reserved resources. This also means that the value of the first parameter is determined by at least one of the physical uplink shared channel transmission layer number, physical uplink shared channel transmission mode, phase tracking reference signal antenna port number, transmit power configuration, and whether the OFDM symbol contains reserved resources.

[0147] For example, Table 7 shows another possible value for the first parameter:

[0148] Table 7

[0149] Here, the base station is configured as Configuration 1, and the number of transmission layers for the physical uplink shared channel is 3. For fully coherent transmission, the first parameter value on OFDM symbols without reserved resources (e.g., symbols 1, 3, 5, or 6) is approximately 4.77 (obtained from 4.77 - 3 * 0). This value is used to determine the phase tracking reference signal transmission power on OFDM symbols without reserved resources. The first parameter value on OFDM symbols with reserved resources (e.g., symbols 0 or 4) is approximately 1.77 (obtained from 4.77 - 3 * 1). This value is used to determine the phase tracking reference signal transmission power on OFDM symbols with reserved resources.

[0150] In some embodiments, the value of the first parameter is determined by at least one of the following: the number of physical uplink shared channel transmission layers, the physical uplink shared channel transmission mode, the number of phase tracking reference signal antenna ports, the physical uplink shared channel codebook type, the transmit power configuration, and the OFDM symbol type.

[0151] For example, Table 8 shows another possible value for the first parameter:

[0152] Table 8

[0153] Here, the transmit power is configured as configuration 1, and the transmission type of the physical uplink shared channel is configured as transmission based on the fourth type codebook. The number of transmission layers of the physical uplink shared channel is 4. The number of antenna ports for the phase tracking reference signal is 2. When the phase tracking reference signal is on OFDM symbols without reserved resources (e.g., symbols 1, 3, 5, or 6), the value of the first parameter is approximately 3.01 (from 10log). 10 (2) -3*0 is obtained); when the phase tracking reference signal is on an OFDM symbol with reserved resources (e.g., symbol 0 or 4), the value of the first parameter is approximately 0 (from 10log 10 (2) -3*1 is obtained).

[0154] In some embodiments, the transmission power of the phase tracking reference signal on different OFDM symbols is different. Specifically, the transmission power of the phase tracking reference signal on OFDM symbols with reserved resources is different from that on OFDM symbols without reserved resources. Similar to the embodiments shown in Table 3 or Table 4, the value of the first parameter is determined by at least one of the following: the number of physical uplink shared channel transmission layers, the physical uplink shared channel transmission mode, the number of phase tracking reference signal antenna ports, the physical uplink shared channel codebook type, and the transmission power configuration.

[0155] The transmission power of the phase tracking reference signal can be determined using any one or more of the methods described above. In other words, the one or more of the methods used by the first node are configured by the second node.

[0156] The following is an exemplary description of modulation symbols provided in the embodiments of this disclosure.

[0157] In some embodiments, the modulation symbols (or complex symbols) of the physical uplink shared channel are subjected to Discrete Fourier Transform (DFT) processing (or operation). The modulation symbols of the physical uplink shared channel are divided into one or more groups. The number of groups equals the number of OFDM symbols in the physical uplink shared channel excluding DMRS. Each group corresponds to one OFDM symbol. The number of modulation symbols contained in a group equals the number of available REs contained in the corresponding OFDM symbol. The number of available REs on an OFDM symbol is the difference between the total number of REs contained in that OFDM symbol and the number of reserved REs on that symbol. The number of points processed by the DFT equals the number of REs contained in the physical uplink shared channel.

[0158] For example, suppose the modulation symbols are x(0), x(1), x(2), x(3), ..., x(N-1), with a total of N modulation symbols. Then the DFT process can be represented as follows: Here, y(0), y(1), y(2), y(3), ..., y(N-1) is the output sequence after DFT processing, e is the natural constant, j is the imaginary unit, and the number of points processed by DFT is equal to N.

[0159] Perform a DFT operation on the modulation symbols of each group of physical uplink shared channel. If the number of modulation symbols in the group is less than the number of points processed by the DFT, or if the OFDM symbols corresponding to the group contain reserved resources, then the modulation symbols of the group are repeated or expanded. After repetition, the number of modulation symbols is equal to the number of points processed by the DFT. The number of repetitions is equal to the number of REs in the physical uplink shared channel divided by the number of available REs or the number of modulation symbols in the group.

[0160] For example, when the number of available REs is half of the physical uplink shared channel frequency domain resources or the reserved REs occupy half of the physical uplink shared channel resources, the repetition count is 2.

[0161] The repetition process includes repeating the same modulation symbol and / or repeating different modulation symbols. After repetition, the group of modulation symbols contains multiple modulation symbol segments. Repeating the same modulation symbol results in identical multiple modulation symbol segments. Repeating different modulation symbols results in different multiple modulation symbol segments.

[0162] For example, suppose the modulation symbols to be repeated are x(0), x(1), x(2), x(3), ..., x(N-1), and the number of repetitions is 2. The result of repeating the same modulation symbols is x(0), x(1), x(2), x(3), ..., x(N-1), x(0), x(1), x(2), x(3), ..., x(N-1). Here, the first x(0), x(1), x(2), x(3), ..., x(N-1) is the first segment, and the second x(0), x(1), x(2), x(3), ..., x(N-1) is the second segment. The two segments have exactly the same modulation symbols. The result of repeating different modulation symbols is x(0),x(1),x(2),x(3),…,x(N-1), a*x(0),a*x(1),a*x(2),a*x(3),…,a*x(N-1). Here, the first x(0),x(1),x(2),x(3),…,x(N-1) is the first segment, and a*x(0),a*x(1),a*x(2),a*x(3),…,a*x(N-1) is the second segment. The two segments have completely different modulation symbols. The second segment is the first segment multiplied by a coefficient (e.g., 'a').

[0163] In some embodiments, the method of repeating modulation symbols depends on the location of the reserved resource or the location of the available resource. When the reserved resource is located in an odd-numbered RE (i.e., the RE with an odd index in Figure 3) or the available resource is located in an even-numbered RE (i.e., the RE with an even index in Figure 3), the same modulation symbol is repeated. Conversely, when the reserved resource is located in an even-numbered RE (i.e., the RE with an even index in Figure 3) or the available resource is located in an odd-numbered RE (i.e., the RE with an odd index in Figure 3), a different modulation symbol is repeated. The coefficient of the modulation symbol is -1.

[0164] Taking Figure 3 as an example, assume the modulation symbols of the physical uplink shared channel are x(0), x(1), x(2), x(3), ..., x(479). The modulation symbols are grouped. The physical uplink shared channel contains a total of 6 OFDM symbols without DMRS (OFDM symbols 0, 1, 3, 4, 5, 6). The modulation symbols of the physical uplink shared channel are divided into 6 groups. The first group of modulation symbols corresponds to one OFDM symbol; the first group corresponds to OFDM symbol 0, the second group corresponds to OFDM symbol 1, the third group corresponds to OFDM symbol 4, and so on. There are a total of 48 available REs on the first OFDM symbol. Therefore, the first group contains 48 modulation symbols, namely x(0), x(1), ..., x(47). There are a total of 96 available REs on the second OFDM symbol. Therefore, the second group contains 96 modulation symbols, namely x(48), x(49), ..., x(143). There are a total of 48 available REs on the third OFDM symbol. The third group contains 48 modulation symbols, namely x(144), x(145), ..., x(191). Similarly, the fourth group contains 96 REs, namely x(192), x(193), ..., x(287). The fifth group contains 96 REs, namely x(288), x(289), ..., x(383). The sixth group contains 96 REs, namely x(384), x(385), ..., x(479).

[0165] The physical uplink shared channel contains 96 REs. The first group contains 48 modulation symbols, which is less than the number of REs in the physical uplink shared channel. The number of REs in the physical uplink shared channel divided by the number of available REs is 2 (obtained by dividing 96 by 48). Therefore, the modulation symbols in the first group are repeated twice. In Figure 3, the reserved resources are located on odd-numbered REs (i.e., REs with odd indices). The same modulation symbols are repeated on the first group. After repetition, the modulation symbols are x(0), x(1), ..., x(47), x(0), x(1), ..., x(47). DFT processing is performed on this sequence according to the example above. The number of points in the DFT operation is 96. Assume that in Figure 3, the reserved resources are located on even-numbered REs (i.e., REs with even indices). Different modulation symbols are repeated on the first group. After repetition, the modulation symbols are x(0), x(1), ..., x(47), -x(0), -x(1), ..., -x(47). Perform a DFT on this sequence following the example above. The number of points in the DFT operation is 96.

[0166] It should be noted that the physical uplink shared channel modulation symbols here may also include phase tracking reference signal sequences or phase tracking reference signal sequence symbols.

[0167] In some embodiments, the terminal further precodes the DFT-processed sequence and maps the processed complex-valued symbols onto corresponding resources. The terminal maps the complex-valued symbols onto physical uplink shared channel resources. Optionally, the terminal transmits the complex-valued symbols mapped onto the shared channel resources via the shared channel.

[0168] In some embodiments, a first node reports measurement results. The measurement results include measurements of one or more measurement resources. The measurement results for each measurement resource are indicated using measurement result information. The measurement result information contains one or more bits. The first node sends the measurement result information to a second node. The physical uplink shared channel or physical uplink control channel carries the measurement results or contains measurement result information. A measurement resource comprises one or more resource blocks in the frequency domain. In some embodiments, measurement result values ​​are reported or indicated in a direct (or absolute) manner; that is, the measurement result information directly indicates the measurement result.

[0169] For example, Table 9 shows the indicative relationship between measurement results and measurement result information:

[0170] Table 9

[0171] The measurement result information contains 7 bits to indicate the measurement result. If the measurement result is greater than or equal to -138 and less than -137, the measurement report information is '0000011' (indication 3); if the measurement result is greater than or equal to -46 and less than -45, the measurement report information is '1011111' (indication 95); if the receiver cannot detect the measurement signal due to the measurement signal being too strong, the measurement result is 'infinity', and the measurement report information is '1100010' (indication 98).

[0172] In some embodiments, measurement results are reported in an indirect (or relative) manner, meaning that the measurement result information interval indicates the measurement result. For example, the measurement result information indicates the difference between the measurement result and a reference value, that is, the difference between the measurement result and the reference value, or the difference between the reference value and the measurement result.

[0173] For example, Table 10 shows the relationship between the measurement result information and the indicated difference:

[0174] Table 10

[0175] The measurement result information includes 3 bits to indicate the difference. If the difference between the measurement result and the reference value is greater than -4 and less than or equal to -2, the measurement report information is '010' (indication value 2); if the difference between the measurement result and the reference value is greater than -8 and less than or equal to -6, the measurement report information is '100' (indication value 2).

[0176] In some embodiments, a channel state information (CSI) report is associated with at least one measurement resource. A first node reports the maximum or minimum measurement result of at least one measurement resource. The measurement results of the maximum or minimum measurement resources are included in a single CSI report. The number of measurement results included in the CSI report is configured by a second node. For example, a CSI report is associated with eight measurement resources, whose measurement results are S1, S2, S3, S4, S5, S6, S7, and S8, and the order is S1>S2>S3>S4>S5>S6>S7>S8. The second node is configured to include four measurement results in the CSI report. The first node reports the four maximum measurement results, and the CSI report includes S1, S2, S3, and S4. The first node also reports the four minimum measurement results, and the CSI report includes S5, S6, S7, and S8.

[0177] The first node sends a Physical Uplink Shared Channel (PHS) or a Physical Uplink Control Channel (PEC) to the second node. The PHS or POC is configured or scheduled by the second node. In some embodiments, the first node receives scheduling information or configuration information sent by the second node. The scheduling information schedules the PHS or POC. The configuration information configures the PHS or POC.

[0178] In some embodiments, the maximum or minimum measurement result in a channel state information report is reported directly (as indicated in Table 9). Other measurement results are reported indirectly (as indicated in Table 10). The reference value for the indirect reporting method is the measurement result reported directly, which is the maximum or minimum measurement result in the channel state information report.

[0179] In some embodiments, measurements that result in 'infinity' cannot be reported directly. That is, measurements that are the largest or smallest in a channel state information report and are not 'infinity' are reported directly (as indicated in Table 9). Other measurements are reported indirectly (as indicated in Table 10). In some embodiments, measurements that result in 'infinity' are reported intermittently (as indicated in Table 10). A measurement result information value is used to indicate that the measurement result is 'infinity'. For example, in Table 10, information value 7 (represented by 3 bits '111') is used to indicate that the measurement result is 'infinity'.

[0180] In some embodiments, a channel state information report indicates that the measurement result of at least one measurement resource is 'infinity'. Measurement results with a measurement result of 'infinity' are reported directly (as indicated in Table 9). Other measurement results are reported intermittently (as indicated in Table 10). The reference values ​​for indirect reporting are the maximum result value that can be reported using the direct method (as shown in Table 10, the maximum reportable result is -44 dBm) or the minimum measurement result (as shown in Table 10, the minimum reportable result is -140 dBm).

[0181] In some embodiments, the measurement result of at least one measurement resource in a channel state information report is 'infinity'. The measurement result of 'infinity' is indicated when reporting as the maximum result value that can be reported directly (as shown in Table 10, the maximum result that can be reported is -44dBm) or the minimum measurement result (as shown in Table 10, the minimum result that can be reported is -140dBm).

[0182] This reporting method allows for effective measurement of results, especially 'infinity' measurements, thus enabling the second node to obtain valid measurement results.

[0183] The communication method provided in this embodiment can be applied to the second node 102 in the communication system shown in FIG1. ​​FIG4 shows a flowchart of another communication method, which includes the following S401 and S402:

[0184] In S401, control information is sent to the first node.

[0185] Here, control information is used to schedule physical channels, and the resources of physical channels include reserved resources;

[0186] In S402, the physical channel transmitted by the first node is received on the physical channel resources, or the physical channel transmitted by the first node and the phase tracking reference signal are received on the physical channel resources.

[0187] In some embodiments, the method further includes:

[0188] Send the first configuration information to the first node;

[0189] Here, the first configuration information is used to configure at least one of the following:

[0190] The frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, and the frequency domain offset or sample density.

[0191] In some embodiments, the transmission power of the phase tracking reference signal is determined based on the transmission power of the physical channel and a first ratio; the first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal.

[0192] In some embodiments, a portion of the time-domain resources of the physical channel include reserved resources; the physical channel is one of the following:

[0193] There are no physical channels on orthogonal frequency division multiplexing (OFDM) symbols with reserved resources;

[0194] Physical channels exist on OFDM symbols with reserved resources;

[0195] The physical channel on the OFDM symbol where the phase tracking reference signal is located.

[0196] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0197] In some embodiments, the ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following:

[0198] The physical channel transmission layer number, physical channel transmission mode, number of antenna ports for transmitting phase tracking reference signals, transmission power configuration information of phase tracking reference signals, symbol type of OFDM symbol in which phase tracking reference signals are located, or codebook type of physical channel transmission; the symbol type of OFDM symbol includes OFDM symbols with reserved resources or OFDM symbols without reserved resources.

[0199] In some embodiments, the transmission mode of the physical channel includes one of the following: full-duplex transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0200] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0201] The phase tracking reference signal has the same transmission power on different OFDM symbols;

[0202] The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol.

[0203] The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0204] It should be noted that the explanation of the embodiment of the communication method applied to the second node 102 in the communication system shown in FIG1 can be referred to the explanation of the embodiment applied to the first node 101 in the communication system shown in FIG1, and will not be repeated here.

[0205] The disclosed embodiments can divide the communication device into functional modules according to the above method embodiments. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosed embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0206] Figure 5 is a block diagram of a communication device according to some embodiments, which can perform the communication method provided in the above-described method embodiments. As shown in Figure 5, the communication device includes a receiving module 501 and a transmitting module 502.

[0207] The receiving module 501 is used to receive control information sent by the second node. The control information is used to schedule the physical channel, and the resources of the physical channel include reserved resources.

[0208] The transmitting module 502 is used to transmit the physical channel to the second node on the physical channel resources based on control information, or to transmit the physical channel and phase tracking reference signal to the second node on the physical channel resources.

[0209] In some embodiments, the receiving module 501 is further configured to receive first configuration information from the second node; here, the first configuration information is used to configure at least one of the following:

[0210] The frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, and the frequency domain offset or sample density.

[0211] In some embodiments, the transmission power of the phase tracking reference signal is determined based on the transmission power of the physical channel and a first ratio; the first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal.

[0212] In some embodiments, a portion of the time-domain resources of the physical channel include reserved resources; the physical channel is one of the following:

[0213] There are no physical channels on orthogonal frequency division multiplexing (OFDM) symbols with reserved resources;

[0214] Physical channels exist on OFDM symbols with reserved resources;

[0215] The physical channel on the OFDM symbol where the phase tracking reference signal is located.

[0216] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0217] In some embodiments, the ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following:

[0218] The physical channel transmission layer number, physical channel transmission mode, number of antenna ports of the transmitted phase tracking reference signal, transmission power configuration information of the phase tracking reference signal, symbol type of the OFDM symbol in which the phase tracking reference signal is located, or codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes OFDM symbols with reserved resources or OFDM symbols without reserved resources.

[0219] In some embodiments, the transmission mode of the physical channel includes one of the following: full-duplex transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0220] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0221] The phase tracking reference signal has the same transmission power on different OFDM symbols;

[0222] The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol.

[0223] The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0224] In some embodiments, the communication device further includes a processing module 503.

[0225] The processing module 503 is used to generate modulation symbols; the modulation symbols include modulation symbols corresponding to the physical channel, or include modulation symbols corresponding to the physical channel and modulation symbols corresponding to the phase tracking reference signal;

[0226] Processing module 503 is also used to perform discrete Fourier transform processing on the modulation symbols;

[0227] The processing module 503 is also used to pre-encode the modulation symbols after discrete Fourier transform processing;

[0228] The transmitting module 502 is specifically used to transmit the physical channel carrying the precoded modulation symbols.

[0229] In some embodiments, performing Discrete Fourier Transform (DFT) processing on modulation symbols includes performing DFT processing on modulation symbols in the target OFDM symbol; performing DFT processing on modulation symbols in the target OFDM symbol includes repeating or expanding the modulation symbols; the target OFDM symbol is: an OFDM symbol with reserved resources or an OFDM symbol with a number of modulation symbols less than the number of points of the DFT; the number of modulation symbols after repeating or expanding the processing is equal to the number of points of the DFT or equal to the number of resource units of the physical channel in an OFDM symbol without reserved resources.

[0230] In some embodiments, the repetition process includes repetition of the same modulation symbol and / or repetition of different modulation symbols.

[0231] In some embodiments, the method of repetitive processing is determined based on the location of reserved resources in the OFDM symbol and / or the location of available resources in the OFDM symbol.

[0232] In some embodiments, the number of repetitions is determined based on the ratio between the amount of available resources in the OFDM symbol and the amount of resources in the physical channel corresponding to the OFDM symbol.

[0233] Figure 6 is a block diagram of another communication device according to some embodiments, which can perform the communication method provided in the above-described method embodiments. As shown in Figure 6, the communication device includes a transmitting module 601 and a receiving module 602.

[0234] The sending module 601 is used to send control information to the first node. The control information is used to schedule the physical channel. The resources of the physical channel include reserved resources.

[0235] The receiving module 602 is used to receive the physical channel transmitted by the first node on the physical channel resources, or to receive the physical channel transmitted by the first node and the phase tracking reference signal on the physical channel resources.

[0236] In some embodiments, the sending module 601 is further configured to send first configuration information to the first node;

[0237] Here, the first configuration information is used to configure at least one of the following:

[0238] The frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, and the frequency domain offset or sample density.

[0239] In some embodiments, the transmission power of the phase tracking reference signal is determined based on the transmission power of the physical channel and a first ratio; the first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal.

[0240] In some embodiments, a portion of the time-domain resources of the physical channel include reserved resources; the physical channel is one of the following:

[0241] There are no physical channels on orthogonal frequency division multiplexing (OFDM) symbols with reserved resources;

[0242] Physical channels exist on OFDM symbols with reserved resources;

[0243] The physical channel on the OFDM symbol where the phase tracking reference signal is located.

[0244] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0245] In some embodiments, the ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following:

[0246] The physical channel transmission layer number, physical channel transmission mode, number of antenna ports for transmitting phase tracking reference signals, transmission power configuration information of phase tracking reference signals, symbol type of OFDM symbol in which phase tracking reference signals are located, or codebook type of physical channel transmission; the symbol type of OFDM symbol includes OFDM symbols with reserved resources or OFDM symbols without reserved resources.

[0247] In some embodiments, the transmission mode of the physical channel includes one of the following: full-duplex transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0248] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0249] The phase tracking reference signal has the same transmission power on different OFDM symbols;

[0250] The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol.

[0251] The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

[0252] In implementing the functions of the integrated modules described above in hardware, this disclosure provides another structure for the communication device involved in the above embodiments. As shown in FIG7, the communication device includes a processor 702 and a bus 704. In some embodiments, the communication device may further include a memory 701. In some embodiments, the communication device may further include a communication interface 703.

[0253] Processor 702 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 702 may also be a combination that implements computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor (DSP) and a microprocessor, etc.

[0254] The communication interface 703 is used to connect with other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0255] The memory 701 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0256] In some embodiments, the memory 701 may exist independently of the processor 702. The memory 701 may be connected to the processor 702 via a bus 704 and is used to store instructions or program code. When the processor 702 calls and executes the instructions or program code stored in the memory 701, it can implement the methods provided in the embodiments of this disclosure.

[0257] In other embodiments, the memory 701 may also be integrated with the processor 702.

[0258] Bus 704 can be an extended industry standard architecture (EISA) bus, etc. Bus 704 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 7, but this does not mean that there is only one bus or one type of bus.

[0259] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform the method as described in any of the above embodiments.

[0260] Exemplary examples show that the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices for storing information and / or other machine-readable storage media. The term "machine-readable storage media" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0261] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the method shown in any of the embodiments described above.

[0262] The above descriptions are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, wherein, Applied to the first node, the method includes: Receive control information sent by the second node, the control information being used to schedule the physical channel, the resources of the physical channel including reserved resources; Based on the control information, the physical channel is transmitted to the second node on the resources of the physical channel, or the physical channel and phase tracking reference signal are transmitted to the second node on the resources of the physical channel.

2. The method according to claim 1, further comprising: Receive first configuration information from the second node; The first configuration information is used to configure at least one of the following: The frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, and the frequency domain offset or sample density.

3. The method according to claim 1, wherein, The transmission power of the phase tracking reference signal is determined based on the transmission power of the physical channel and a first ratio; the first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal.

4. The method according to claim 3, wherein, The physical channel's resources include a portion of its time-domain resources, which are the reserved resources; the physical channel is one of the following: There is no physical channel on the Orthogonal Frequency Division Multiplexing (OFDM) symbols of the reserved resources; There is a physical channel on the OFDM symbols of the reserved resources; The physical channel on the OFDM symbol where the phase tracking reference signal is located.

5. The method according to claim 1, wherein, The phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

6. The method according to claim 5, wherein, The ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following: The physical channel includes the number of transmission layers, the transmission mode of the physical channel, the number of antenna ports of the transmitted phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol in which the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes OFDM symbols with reserved resources or OFDM symbols without reserved resources.

7. The method according to claim 6, wherein, The transmission mode of the physical channel includes one of the following: full dual-channel transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

8. The method according to claim 1, wherein, The phase tracking reference signal satisfies one of the following: The phase tracking reference signal has the same transmission power on different OFDM symbols; The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol. The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

9. The method according to claim 1, wherein, The step of transmitting the physical channel to the second node on the resources of the physical channel, or transmitting the physical channel and the phase tracking reference signal to the second node on the resources of the physical channel, includes: Generate modulation symbols; the modulation symbols include the modulation symbols corresponding to the physical channel, or include the modulation symbols corresponding to the physical channel and the modulation symbols corresponding to the phase tracking reference signal; Perform Discrete Fourier Transform on the modulation symbols; The modulation symbols after the discrete Fourier transform are pre-coded. The physical channel that transmits the precoded modulation symbols.

10. The method according to claim 9, wherein, The discrete Fourier transform (DFT) processing of the modulation symbols includes performing DFT processing on the modulation symbols in the target OFDM symbol; the DFT processing on the modulation symbols in the target OFDM symbol includes repeating or expanding the modulation symbols; the target OFDM symbol is: an OFDM symbol with reserved resources or an OFDM symbol with a number of modulation symbols less than the number of points of the DFT; the number of modulation symbols after the repeating or expanding processing is equal to the number of points of the DFT or equal to the number of resource units of the physical channel in an OFDM symbol without reserved resources.

11. The method according to claim 10, wherein, The repetition processing methods include repetition processing of the same modulation symbol and / or repetition processing of different modulation symbols.

12. The method according to claim 11, wherein, The method of repetitive processing is determined based on the location of reserved resources in the OFDM symbol and / or the location of available resources in the OFDM symbol.

13. The method according to claim 11, wherein, The number of repetitions is determined based on the ratio between the number of available resources in the OFDM symbol and the number of resources in the physical channel corresponding to the OFDM symbol.

14. A communication method, wherein, Applied to the second node, the method includes: Send control information to the first node. The control information is used to schedule the physical channel. The resources of the physical channel include reserved resources. The physical channel transmitted by the first node is received on the resources of the physical channel, or the physical channel and phase tracking reference signal transmitted by the first node are received on the resources of the physical channel.

15. The method of claim 14, further comprising: Send the first configuration information to the first node; The first configuration information is used to configure at least one of the following: The frequency domain spacing of the phase tracking reference signal, the time domain spacing of the phase tracking reference signal, the transmission power of the phase tracking reference signal, the method for determining the transmission power of the phase tracking reference signal, the maximum number of antenna ports corresponding to the phase tracking reference signal, and the frequency domain offset or sample density.

16. The method of claim 14, wherein, The transmission power of the phase tracking reference signal is determined based on the transmission power of the physical channel and a first ratio; the first ratio is the ratio between the transmission power of the physical channel and the transmission power of the phase tracking reference signal.

17. The method according to claim 16, wherein, The physical channel's resources include a portion of its time-domain resources, which are the reserved resources; the physical channel is one of the following: There is no physical channel on the Orthogonal Frequency Division Multiplexing (OFDM) symbols of the reserved resources; There is a physical channel on the OFDM symbols of the reserved resources; The physical channel on the OFDM symbol where the phase tracking reference signal is located.

18. The method according to claim 14, wherein, The phase tracking reference signal includes: a phase tracking reference signal transmitted on an OFDM symbol with reserved resources, or a phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

19. The method according to claim 18, wherein, The ratio between the transmission power of the phase tracking reference signal and the transmission power of the physical channel is determined based on at least one of the following: The physical channel includes the number of transmission layers, the transmission mode of the physical channel, the number of antenna ports for transmitting the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol in which the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes OFDM symbols with reserved resources or OFDM symbols without reserved resources.

20. The method according to claim 19, wherein, The transmission mode of the physical channel includes one of the following: full dual-channel transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

21. The method according to claim 14, wherein, The phase tracking reference signal satisfies one of the following: The phase tracking reference signal has the same transmission power on different OFDM symbols; The total transmit power of different OFDM symbols is the same; the total transmit power of an OFDM symbol includes the sum of the transmit power of the phase tracking reference signal on the OFDM symbol and the transmit power of the physical channel corresponding to the OFDM symbol. The transmission power of the phase tracking reference signal transmitted on an OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal transmitted on an OFDM symbol without reserved resources.

22. A communication device, wherein, include: Memory and processor; The memory and the processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instruction, it performs the method as described in any one of claims 1-13, or the method as described in any one of claims 14-21.

23. A computer-readable storage medium, wherein, The computer-readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-13, or the method as described in any one of claims 14-21.

24. A computer program product, wherein, The computer program product includes computer program instructions that, when executed, implement the method as described in any one of claims 1-13, or implement the method as described in any one of claims 14-21.

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