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

Abstract

The embodiment of the invention provides a communication method, a communication device, a storage medium and a program product, relates to the technical field of communication, and can solve the technical problem that transmission power cannot be reliably processed in related technologies. The method is applied to a first node, and comprises the following steps: receiving control information sent by a second node, the control information being used for scheduling a physical channel, and resources of the physical channel comprising reserved resources; and sending the physical channel or the physical channel and a phase tracking reference signal to the second node on the resource of the physical channel based on the control information.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, a communication device, a storage medium, and a program product. Background Art

[0002] The terminal sends a physical uplink shared channel (PUSCH) to the base station, where some resources in the PUSCH may not send any signal. Such resources can be used by the receiving end to measure interference or noise, thereby improving the demodulation performance of the PUSCH. In some cases, the terminal needs to send a phase tracking reference signal (PTRS) so that the receiving end can measure the phase noise. At this time, it is necessary to clarify the transmission power of the phase tracking reference signal so that the receiving end can correctly measure or estimate it.

[0003] Currently, there is a lack of a communication method that can reliably process the transmission power of a physical uplink shared channel or a phase tracking reference signal after introducing reserved resources. Summary of the invention

[0004] The embodiments of the present disclosure provide a communication method, a communication device, a storage medium, and a program product, which can solve the technical problem that the transmission power cannot be reliably processed in the related art.

[0005] In one aspect, a communication method is provided, which is applied to a first node and includes:

[0006] receiving control information sent by the second node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources;

[0007] Based on the control information, a physical channel is sent to the second node on the resources of the physical channel, or a physical channel and a phase tracking reference signal are sent to the second node on the resources of the physical channel.

[0008] In another aspect, a communication device is provided, comprising: a receiving module and a sending module;

[0009] A receiving module, used to receive control information sent by the second node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources;

[0010] The sending module is used to send the physical channel to the second node on the resources of the physical channel based on the control information, or to send the physical channel and the phase tracking reference signal to the second node on the resources of the physical channel.

[0011] On the other hand, a communication method is provided, which is applied to a second node, and the method includes:

[0012] Sending control information to the first node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources;

[0013] A physical channel sent by the first node is received on the resources of the physical channel, or a physical channel sent by the first node and a phase tracking reference signal are received on the resources of the physical channel.

[0014] In yet another aspect, a communication device is provided, comprising: a sending module and a receiving module;

[0015] A sending module, used to send control information to the first node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources;

[0016] The receiving module is used to receive the physical channel sent by the first node on the resources of the physical channel, or to receive the physical channel and the phase tracking reference signal sent by the first node on the resources of the physical channel.

[0017] On the other hand, 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 method described in any one of the above embodiments when executing the computer program.

[0018] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method described in any of the above embodiments is implemented.

[0019] On the other hand, a computer program product is provided. The computer program product includes computer program instructions. When the computer program instructions are executed by a processor, the method described in any one of the above embodiments is implemented.

[0020] An embodiment of the present disclosure provides a communication method for scheduling a physical channel through control information. Since the resources of the physical channel include reserved resources, based on the control information, a first node can send a physical channel or a physical channel and a phase tracking signal to a second node on the resources of the physical channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

[0022] Figure 1 A system architecture diagram of a communication system provided by the present disclosure;

[0023] Figure 2 A flow chart of a communication method provided by the present disclosure;

[0024] Figure 3 A schematic diagram of a physical uplink shared channel resource including reserved resources provided by the present disclosure;

[0025] Figure 4 A flowchart of another communication method provided by the present disclosure;

[0026] Figure 5 A schematic diagram of the structure of a communication device provided by the present disclosure;

[0027] Figure 6 A schematic diagram of the structure of another communication device provided by the present disclosure;

[0028] Figure 7 A schematic diagram of the structure of another communication device provided by the present disclosure. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the present disclosure to clearly and completely describe the technical solutions in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0030] It should be noted that, in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0031] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0032] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more.

[0033] In addition, the embodiments in the present disclosure or the technical features in the embodiments may be combined arbitrarily, and any combination thereof is still within the protection scope of the present disclosure.

[0034] The terminal sends a physical uplink shared channel to the base station, where some resources in the physical uplink shared channel may not send any signal. Such resources can be used by the receiving end to measure interference or noise, thereby improving the demodulation performance of the physical uplink shared channel. In some cases, the terminal needs to send a phase tracking reference signal so that the receiving end can measure the phase noise. At this time, it is necessary to clarify the transmission power of the phase tracking reference signal so that the receiving end can correctly measure or estimate it.

[0035] Currently, there is a lack of a communication method that can reliably process the transmission power of a physical uplink shared channel or a phase tracking reference signal after introducing reserved resources.

[0036] To solve the above technical problems, the embodiment of the present disclosure provides a communication method, which schedules a physical channel through control information. Since the resources of the physical channel include reserved resources, based on the control information, the first node can send a physical channel or a physical channel and a phase tracking signal to the second node on the resources of the physical channel. In addition, the present disclosure also provides a measurement result reporting method.

[0037] The communication method provided by the embodiment of the present disclosure can be applied to systems of various communication formats. For example, the communication method provided by the embodiment of the present disclosure can be applied to systems including but not limited to long term evolution (LTE) systems, various versions based on LTE evolution, fifth generation mobile communication technology (5G) systems, future mobile communication networks (such as the sixth generation 6G mobile communication network (6G), the seventh generation 7G mobile communication network (7G)) or multiple communication fusion systems. In addition, the communication method provided by the embodiment of the present disclosure can also be applied to future-oriented communication systems.

[0038] Exemplarily, the above communication method can be applied to Figure 1 In the communication system, Figure 1 As shown, the communication system includes: a first node 101 and a second node 102.

[0039] Among them, the first node 101 is used to receive control information sent by the second node 102, the control information is used to schedule a physical channel, and the resources of the physical channel include reserved resources; or, based on the control information, to send a physical channel, or a physical channel and a phase tracking reference signal to the second node 102 on the resources of the physical channel.

[0040] The second node 102 is used to send control information to the first node 101, the control information is used to schedule a physical channel, and the resources of the physical channel include reserved resources; or to receive a physical channel sent by the first node 101 on the resources of the physical channel, or a physical channel and a phase tracking reference signal.

[0041] In some embodiments, the first node 101 may be a terminal.

[0042] In some embodiments, the second node 102 may be a base station.

[0043] In some embodiments, the terminal can be a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present application do not limit the application scenarios. A terminal may sometimes also be referred to as 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 equipment, UE agent or UE device, etc., but the embodiments of the present application are not limited to this.

[0044] In some embodiments, the base station can be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network side devices such as primary cells and collaborative cells (secondary cells).

[0045] It should be noted that Figure 1 This is just an exemplary framework diagram. Figure 1 The number of devices included in the , and the names of the individual devices are not limited.

[0046] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0047] The communication method provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0048] The communication method provided by the embodiment of the present disclosure can be applied to Figure 1 A first node 101 in a communication system is shown. Figure 2 A flow chart of a communication method is shown, Figure 2 As shown, the communication method includes the following S201-S202:

[0049] S201. Receive control information sent by a second node.

[0050] The control information is used to schedule a physical channel, and the resources of the physical channel include reserved resources.

[0051] In some embodiments, the control information is used to schedule at least one physical channel.

[0052] Exemplarily, the physical channel may be a physical uplink shared channel and / or a physical uplink control channel (physical uplink control channel, PUCCH).

[0053] In some embodiments, the control information may include at least one of: downlink control information (DCI), medium access control (MAC) control element (CE), or radio resource management (RRC) signaling.

[0054] S202. Based on the control information, send a physical channel to the second node on the resources of the physical channel, or send a physical channel and a phase tracking reference signal to the second node on the resources of the physical channel.

[0055] It should be understood that since the control information can schedule the physical channel and the resources of the physical channel include reserved resources, based on the control information, the first node can send the physical channel or the physical channel and the phase tracking signal to the second node on the resources of the physical channel.

[0056] 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 a base station configuration.

[0057] In some embodiments, the above method further includes: receiving first configuration information from the second node.

[0058] In some embodiments, the first configuration information is used to configure at least one of the following: the frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power configuration of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

[0059] In some embodiments, the configuration information may include at least one of the following: downlink control information, medium access control MAC control element CE, or radio resource management signaling.

[0060] 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 interval (or time domain density, hereinafter collectively referred to as the time domain interval) of the phase tracking reference signal is the interval between two consecutive orthogonal frequency division multiplexing symbols occupied by the phase tracking reference signal.

[0061] Exemplarily, the time domain interval is the number of orthogonal frequency division multiplexing symbols spaced between two consecutive orthogonal frequency division multiplexing symbols or the difference between two consecutive orthogonal frequency division multiplexing symbol indices. If the time domain interval of the phase tracking reference signal is 1, then a phase tracking reference signal exists on each orthogonal frequency division multiplexing symbol of the physical uplink shared channel. If the time domain interval of the phase tracking reference signal is 2, assuming that the physical uplink shared channel occupies orthogonal frequency division multiplexing symbols 0-6, then the phase tracking reference signal may be on orthogonal frequency division multiplexing symbol 1, symbol 3, and symbol 5. The orthogonal frequency division multiplexing symbol occupied by the phase tracking reference signal in the physical uplink shared channel resource is determined by at least one of the time domain interval of the phase tracking reference signal, the physical uplink shared channel resource (time domain resource) or the demodulation reference signal (DMRS) position of the physical uplink shared channel.

[0062] In some embodiments, the time domain interval of the phase tracking reference signal is configured by the base station.

[0063] In some embodiments, the time domain interval 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 interval.

[0064] Exemplarily, Table 1 shows a relationship between a phase tracking reference signal time domain interval and MCS:

[0065] Table 1

[0066] <![CDATA[Scheduled MCS: I MCS > PTRS time interval <![CDATA[I MCS <MCS 1 ]]> PT-RS does not exist <![CDATA[MCS 1 ≤I MCS <MCS 2 ]]> 4 <![CDATA[MCS 2 ≤I MCS <MCS 3 ]]> 2 <![CDATA[MCS 3 ≤I MCS <MCS 4 ]]> 1

[0067] If the MCS of the scheduled physical uplink shared channel is less than the MCS 1 , 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 sends the physical uplink shared channel. If the MCS of the physical uplink shared channel is greater than or equal to the MCS 1 and is less than MCS 2 , the time domain interval of the phase tracking reference signal is 4. At this time, there is a phase tracking reference signal in the physical uplink shared channel. The UE sends 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 the MCS 2 and is less than MCS 3 , 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 the MCS 3 and is less than MCS 4, 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 configuring one or more MCS values ​​(such as MCS 1 , MCS 2 , MCS 3 , MCS 4 etc.) and / or a table indicating the relationship between the phase tracking reference signal time domain interval and the MCS.

[0068] In a resource block (RB), the phase tracking reference signal occupies one or more resource elements (RE). Furthermore, one antenna port of the phase tracking reference signal occupies one RE. In different RBs, the phase tracking reference signal occupies the same RE (or RE at the same position, or RE with the same index). The frequency domain interval (or frequency domain density, hereinafter collectively referred to as frequency domain interval) of the phase tracking reference signal is the interval between the REs (or RBs) occupied by two consecutive phase tracking reference signals.

[0069] Exemplarily, the frequency domain interval is the number of REs (or RBs) between two consecutive REs (or RBs) or the difference between the indexes of two consecutive REs (or RBs). In some cases, the frequency domain interval of the phase tracking reference signal is configured by the base station. In some cases, the frequency domain interval 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 of the physical uplink shared channel. The larger the bandwidth of the physical uplink shared channel, the larger the frequency domain interval of the phase tracking reference signal.

[0070] Exemplarily, Table 2 shows a relationship between the frequency domain interval of a phase tracking reference signal and the number of RBs:

[0071] Table 2

[0072]

[0073] If the bandwidth of the scheduled physical uplink shared channel is less than N RB0 , the phase tracking reference signal does not exist. That is, there is no phase tracking reference signal in the physical uplink shared channel. The terminal only sends the physical uplink shared channel. If the bandwidth of the physical uplink shared channel is greater than or equal to N RB0 and is less than N RB1 , the frequency domain interval of the phase tracking reference signal is 2. At this time, there is a phase tracking reference signal in the physical uplink shared channel. The terminal sends 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, there is a phase tracking reference signal in the physical uplink shared channel. The terminal sends 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 one or more configured RB values ​​(such as 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.

[0074] It should be understood that when the second node is not configured with the first configuration information, or the first node has not received the first configuration information, there is no phase tracking reference signal in the physical uplink shared channel.

[0075] In some embodiments, the base station configures at least one reserved resource (or silent resource, unavailable resource, hereinafter collectively referred to as reserved resource) to the terminal. Or the protocol predefines at least one reserved resource. The reserved resource includes one or more time domain units in the time domain. The time domain unit includes one of the following: OFDM symbol, slot, sub-slot, radio frame or subframe. The reserved resource includes one or more subcarriers, RE or RB in the frequency domain. The terminal does not send any information on the reserved resource.

[0076] In some embodiments, the resources of the physical uplink shared channel may include reserved resources. The modulation symbols of the physical uplink shared channel will not be mapped to the reserved resources. In other words, the modulation symbols will be mapped to the physical uplink shared channel resources outside the reserved resources. When the modulation symbols are mapped to the physical uplink shared channel resources, the reserved resources will be skipped.

[0077] For example, Figure 3 A schematic diagram of a physical uplink shared channel resource including reserved resources provided for an embodiment of the present disclosure. The physical uplink shared channel includes 8 RBs in the frequency domain. In the frequency domain, each RB includes 12 REs, which are represented by RE0-11 respectively. 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, which are represented by OFDM symbols 0-6 respectively. In the time domain, the reserved resources include OFDM symbol 0 and symbol 4. In the frequency domain, the reserved resources include odd REs (i.e., REs with odd indexes). Therefore, the reserved resources include REs 1, 3, 5, 7, 9, and 11 of each RB on OFDM symbol 0 and OFDM symbol 4, respectively.

[0078] In some embodiments, the transmit power of the phase tracking reference signal is determined based on at least one of the transmit power of the physical channel and a first ratio. The first ratio is the ratio between the transmit power of the physical channel and the transmit power of the phase tracking reference signal. The transmit power of the phase tracking reference signal can be accurately and reliably determined by the first ratio and the transmit power of the physical channel.

[0079] It should be noted that the first ratio may be the transmit power of the physical channel to the transmit power of the phase tracking reference signal, or may be 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 may be obtained by dividing the transmit power of the physical channel by the ratio of the transmit power of the physical channel to the transmit power of the phase tracking reference signal. The transmit power of the phase tracking reference signal may be obtained by multiplying the 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.

[0080] In some embodiments, part of the time domain resources in the resources of the physical channel include reserved resources; the physical channel is one of the following:

[0081] There is no physical channel on the OFDM symbol with reserved resources;

[0082] Physical channels on OFDM symbols with reserved resources;

[0083] The phase tracking reference signal is located on the physical channel of the OFDM symbol.

[0084] It should be understood that when the physical channel is a physical channel on an OFDM symbol where no reserved resources exist, the transmit power of the phase tracking reference signal sent by the first node is determined based on the transmit power of the physical channel on the OFDM symbol where no reserved resources exist and the first ratio.

[0085] When the physical channel is a physical channel on an OFDM symbol with reserved resources, the transmit power of the phase tracking reference signal sent by the first node is determined based on the transmit power of the physical channel on the OFDM symbol with reserved resources and the first ratio.

[0086] When the physical channel is a physical channel on the OFDM symbol where the phase tracking reference signal is located, the transmit power of the phase tracking reference signal sent by the first node is determined based on the transmit power of the physical channel on the OFDM symbol where the phase tracking reference signal is located and the first ratio.

[0087] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

[0088] It should be understood that when the physical channel and the phase tracking reference signal are sent to the second node on the resources of the physical channel, the physical channel and the phase tracking reference signal can be sent through OFDM symbols. There may be reserved resources on the OFDM symbol, or there may be no reserved resources. Therefore, the phase tracking reference signal can be a phase tracking reference signal sent on an OFDM symbol with reserved resources, or it can be a phase tracking reference signal sent on an OFDM symbol without reserved resources.

[0089] In some embodiments, the ratio between the transmit power of the phase tracking reference signal and the transmit power of the physical channel is determined based on at least one of: the number of transmission layers of the physical channel, the transmission mode of the physical channel, the number of antenna ports for transmitting the phase tracking reference signal, the transmit power configuration information of the phase tracking reference signal (or the transmit power configuration of the phase tracking reference signal), the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type for physical channel transmission.

[0090] Exemplarily, the ratio between the transmit power of the phase tracking reference signal and the transmit power of the physical channel may refer to the explanations of the embodiments corresponding to the following Tables 3 to 8.

[0091] In the present disclosure, the symbol type of the OFDM symbol may include an OFDM symbol with reserved resources or an OFDM symbol with no reserved resources.

[0092] In some embodiments, the transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0093] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0094] The transmission power of the phase tracking reference signal on different OFDM symbols is the same;

[0095] The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on an OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol;

[0096] The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

[0097] It should be understood that the same transmission power of the phase tracking reference signals on different OFDM symbols can make the transmission power of the phase tracking reference signals on different OFDM symbols received by the receiving end the same, which can simplify the receiving design of the receiving end and reduce the number of parameters that need to be adjusted by the receiving end during the receiving process.

[0098] It should be understood that the total transmission power of different OFDM symbols is the same, which can make the power of the transmitter more balanced when sending different OFDM symbols, simplifying the power control of the transmitter. And the receiver can design the receiving parameters based on the total transmission power of different OFDM symbols being the same, which improves the reliability of data transmission and improves the user experience.

[0099] It should be understood that since the symbol categories of OFDM symbols with reserved resources and OFDM symbols without reserved resources are different, they may need to be processed differently during the transmission process at the transmitting end and the reception process at the receiving end to adapt to the communication environment. Therefore, the transmission power of the phase tracking reference signal sent on the OFDM symbol with reserved resources is different from the transmission power of the phase tracking reference signal sent on the OFDM symbol without reserved resources. When the phase tracking reference signal is sent on the OFDM symbol with reserved resources and the OFDM symbol without reserved resources, differentiated transmission power configuration can be performed to improve the flexibility of signal transmission and ensure the reliability of transmission.

[0100] In some embodiments, sending the physical channel to the second node on the resources of the physical channel, or sending the physical channel and the phase tracking reference signal to the second node on the resources of the physical channel, is implemented in the following manner:

[0101] 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;

[0102] Performing discrete Fourier transform processing on the modulation symbols;

[0103] Performing precoding processing on the modulation symbols after discrete Fourier transform processing;

[0104] A physical channel for transmitting modulation symbols after precoding.

[0105] In some embodiments, sending the physical channel to the second node on the resource of the physical channel is implemented in the following manner:

[0106] Generate modulation symbols; the modulation symbols include modulation symbols corresponding to physical channels;

[0107] Performing discrete Fourier transform processing on the modulation symbols;

[0108] Performing precoding processing on the modulation symbols after discrete Fourier transform processing;

[0109] A physical channel for transmitting modulation symbols after precoding.

[0110] In some embodiments, sending the physical channel and the phase tracking reference signal to the second node on the resources of the physical channel is implemented in the following manner:

[0111] Generate modulation symbols; the modulation symbols include modulation symbols corresponding to the physical channel and modulation symbols corresponding to the phase tracking reference signal;

[0112] Performing discrete Fourier transform processing on the modulation symbols;

[0113] Performing precoding processing on the modulation symbols after discrete Fourier transform processing;

[0114] A physical channel for transmitting modulation symbols after precoding.

[0115] In some embodiments, performing discrete Fourier transform processing on the modulation symbols includes performing discrete Fourier transform processing on the modulation symbols in the target OFDM symbol.

[0116] In some embodiments, performing discrete Fourier transform processing on the modulation symbols in the target OFDM symbol includes repeated processing or extended processing on 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 discrete Fourier transform; the number of modulation symbols after repeated processing or extended processing is equal to the number of points of the discrete Fourier transform or equal to the number of resource units of the physical channel in the OFDM symbol with no reserved resources.

[0117] It should be understood that by repeating or extending the modulation symbols, the processing of performing discrete Fourier transform on OFDM symbols with reserved resources or OFDM symbols with a modulation symbol number less than the number of discrete Fourier transform points can be made substantially consistent with the processing of performing discrete Fourier transform on OFDM symbols with no reserved resources or OFDM symbols with a modulation symbol number not less than (or equal to) the number of discrete Fourier transform points. In this way, the processing complexity of performing discrete Fourier transform on OFDM symbols with reserved resources or OFDM symbols with a modulation symbol number less than the number of discrete Fourier transform points can be reduced, and the efficiency of discrete Fourier transform processing can be improved.

[0118] In some embodiments, the repetitive processing includes repetitive processing of the same modulation symbol and / or repetitive processing of different modulation symbols.

[0119] It should be noted that repeated processing of the same modulation symbol can obtain at least two same modulation symbols. Repeated processing of different modulation symbols can obtain at least two different modulation symbols.

[0120] Exemplarily, assuming that modulation symbol 1 is repeatedly processed with the same modulation symbol having a repetition number of 2, two modulation symbols 1 can be obtained. Assuming that modulation symbol 1 is repeatedly processed with different modulation symbols having a repetition number of 2, modulation symbol 1 and modulation symbol 2 can be obtained (modulation symbol 2 can be obtained by multiplying modulation symbol 1 by a coefficient).

[0121] In some embodiments, the manner of repetition 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.

[0122] Exemplarily, when the position of the reserved resources in the OFDM symbol is located at an odd resource position (such as a resource element position) or the position of the available resources in the OFDM symbol is located at an even resource position, the modulation symbol on the OFDM symbol is repeated with the same modulation symbol. When the position of the reserved resources in the OFDM symbol is located at an even resource position (such as a resource element position) or the position of the available resources in the OFDM symbol is located at an odd resource position, the modulation symbol on the OFDM symbol is repeated with different modulation symbols. Or conversely, when the position of the reserved resources in the OFDM symbol is located at an odd resource position (such as a resource element position) or the position of the available resources in the OFDM symbol is located at an even resource position, the modulation symbol on the OFDM symbol is repeated with different modulation symbols. When the position of the reserved resources in the OFDM symbol is located at an even resource position (such as a resource element position) or the position of the available resources in the OFDM symbol is located at an odd resource position, the modulation symbol on the OFDM symbol is repeated with the same modulation symbol.

[0123] In some embodiments, the number of repetitions is determined based on a ratio between the number of available resources in an OFDM symbol and the number of resources of a physical channel to which the OFDM symbol corresponds.

[0124] It should be understood that the number of repeated processing times is based on the ratio between the number of available resources in the OFDM symbol and the number of resources of the physical channel corresponding to the OFDM symbol. This can ensure that after the modulation symbols on the OFDM symbol with reserved resources are repeated based on the number of repetitions, the number of modulation symbols obtained is the same as the number of modulation symbols on the OFDM symbol without reserved resources, ensuring that the number of modulation symbols that are finally discrete Fourier transformed on the two OFDM symbol types is the same, so that the discrete Fourier transform processing of the modulation symbols corresponding to the two OFDM symbol types is basically consistent.

[0125] Exemplarily, the number of repetitions may be determined as a value obtained by dividing the number of resources of the physical channel corresponding to the OFDM symbol by the number of available resources in the OFDM symbol.

[0126] The following is an exemplary description of a phase tracking reference signal provided in an embodiment of the present disclosure.

[0127] Exemplarily, the terminal sends 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.

[0128] In some cases, the transmission power of the phase tracking reference signal is expressed as a power coefficient. The terminal generates a phase tracking reference signal sequence (or reference signal modulation symbol, hereinafter collectively referred to as a 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 to the phase tracking reference signal resource. Assume that the generated phase tracking reference signal sequence is r(m), and the sequence after multiplying by the power coefficient is P 1 *r(m), where P 1 is the power coefficient. The terminal will sequence P 1 *r(m) is mapped to the corresponding resource. The value of the power coefficient is determined by the first parameter.

[0129] In some embodiments, the first parameter is a power ratio of a physical uplink shared channel to a phase tracking reference signal or a power ratio of a phase tracking reference signal to a physical uplink shared channel.

[0130] In some cases, 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 are reciprocals of each other.

[0131] In some cases, the power ratio is expressed in decibels (dB). 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 are inverses of each other. The first parameter is the power ratio of the phase tracking reference signal to the physical uplink shared channel. The value of the power coefficient is Where S 1 is the first parameter. At this time, the sequence after multiplying by the power coefficient is The first parameter is the power ratio of the physical uplink shared channel to the phase tracking reference signal. The value of the power coefficient is Where S 1 is the first parameter. At this time, the sequence after multiplying by the power coefficient is The following takes the transmission power ratio of the physical uplink shared channel to the phase tracking reference signal as an example to illustrate the method for determining the transmission power of the phase tracking reference signal. All embodiments thereof can be applied to the power ratio of the phase tracking reference signal to the physical uplink shared channel.

[0132] In some embodiments, the transmit power of the phase tracking reference signal on different OFDM symbols is the same. 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 the 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 Figure 3 The first parameter is a transmit power ratio of a physical uplink shared channel to a phase tracking reference signal on an OFDM symbol without reserved resources. 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, and the transmit power configuration.

[0133] Exemplarily, as shown in Table 3, a possible value of the first parameter is shown:

[0134] Table 3

[0135]

[0136]

[0137] Among them, the transmit power configuration is configuration 1, the number of transmission layers of the physical uplink shared channel is 1, and for all transmission modes, the value of the first parameter is 0. At this time, the value of the power coefficient is 1 (10^0), which means that the transmit power of the phase tracking reference signal and the physical uplink shared channel is the same. The transmit power configuration is configuration 1, the number of transmission layers of the physical uplink shared channel is 2, and for partially coherent transmission, if the number of antenna ports for the phase tracking reference signal is 1 (it can be understood that the number of antenna ports for sending the phase tracking reference signal is 1; or it can be understood that the number of antenna ports corresponding to or mapped to the phase tracking reference signal is 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). According to the above description, the value of the power coefficient is approximately (10^(3 / 20)).

[0138] 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 physical uplink shared channel codebook type, and the transmit power configuration. The number of physical uplink shared channel transmission layers is the total number of physical uplink shared channel layers, or the number of physical uplink shared channel layers in one or more antenna port groups, or the number of physical uplink shared channel layers that are coherently encoded. In some embodiments, one or more physical uplink shared channel layers in one or more antenna port groups are associated with PTRS antenna ports. One or more of the physical uplink shared channel layers that are coherently encoded are associated with PTRS ports. The transmission mode of the physical uplink shared channel includes at least one of full coherent transmission, partial coherent transmission, non-coherent transmission, codebook-based transmission, and non-codebook-based transmission. The codebook of the physical uplink shared channel 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.

[0139] Exemplarily, Table 4 shows another possible value of the first parameter:

[0140] Table 4

[0141]

[0142]

[0143] 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 number of transmission layers of the physical uplink shared channel is 6, so the value of the first parameter is approximately 7.78 (given by 10*log 10 (6)). According to the above description, the value of the power coefficient is approximately (Obtained by 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 of codebook. The number of transmission layers of the physical uplink shared channel is 5, and the number of antenna ports for PTRS is 2. The first layer and the second layer of the physical uplink shared channel are coherently encoded, and the first layer of the physical uplink shared channel is associated with the first PTRS port. The first layer and the second layer of the physical uplink shared channel are located in or mapped to an antenna port group. The third layer, the fourth layer, and the fifth layer of the physical uplink shared channel are coherently encoded, and the fourth layer of the physical uplink shared channel is associated with the second PTRS port. The third layer, the fourth layer, and the fifth layer of the physical uplink shared channel are located in or mapped to an antenna port group. For the first PTRS port, its designated 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 is coherently encoded with the first layer of the physical uplink shared channel, that is, L x =2. At this time, the value of the first parameter is about 6.02 (given by 10*log 10 (2*2)). According to the above description, the power coefficient is approximately 2 (obtained by 10^(6.02 / 20)). Therefore, the power coefficient of the first PTRS port is approximately 2. For the second PTRS port, its designated physical uplink shared channel layer is the fourth layer. There are a total of 3 layers (i.e., the third layer, the fourth layer, and the fifth layer) in the antenna port group that performs coherent coding with the fourth layer of the physical uplink shared channel, that is, L x =3. At this time, the value of the first parameter is about 7.78 (given by 10*log 10 (3*2)). According to the above description, the value of the power coefficient is approximately (obtained from 10^(7.78 / 20)). Therefore, the power factor value of the second PTRS port is

[0144] In some embodiments, the transmission power of the phase tracking reference signal on different OFDM symbols is different. The total transmission power on each OFDM symbol is the same. The total transmission power includes the sum of the physical uplink shared channel transmission power and the phase tracking reference signal transmission 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 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 where the phase tracking reference signal is located, and the transmission power configuration. The OFDM symbol type includes at least one of an OFDM symbol containing reserved resources and an OFDM symbol that does not contain 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 transmission power configuration, and whether the OFDM symbol where the phase tracking reference signal is located contains reserved resources.

[0145] Exemplarily, Table 5 shows another possible value of the first parameter:

[0146] Table 5

[0147]

[0148] Among them, the transmit power configuration is 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 (such as symbol 1, 3, 5, or 6), for all transmission modes, the value of the first parameter is 0 (obtained by 0+3*0); when the phase tracking reference signal is on an OFDM symbol with reserved resources (such as symbol 0, or 4), for all transmission modes, the value of the first parameter is approximately 3 (obtained by 0+3*1).

[0149] The transmit power configuration is configuration 1, the number of transmission layers of the physical uplink shared channel is 4, and for partially coherent transmission, if the number of antenna ports for the phase tracking reference signal is 1 and the phase tracking reference signal is on an OFDM symbol without reserved resources, then the value of the first parameter is approximately 3 (obtained by 3*1+3*0); if the number of antenna ports for the phase tracking reference signal is 1 and the phase tracking reference signal is on an OFDM symbol with reserved resources, then the value of the first parameter is approximately 6 (obtained by 3*1+3*1); if the number of antenna ports for the phase tracking reference signal is 2 and the phase tracking reference signal is on an OFDM symbol without reserved resources, then the value of the first parameter is approximately 6 (obtained by 3*2+3*0); if the number of antenna ports for the phase tracking reference signal is 2 and the phase tracking reference signal is on an OFDM symbol with reserved resources, then the value of the first parameter is approximately 9 (obtained by 3*2+3*1).

[0150] 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 physical uplink shared channel codebook type, the symbol type of the OFDM symbol where the phase tracking reference signal is located, and the transmit power configuration.

[0151] Exemplarily, Table 6 shows another possible value of the first parameter:

[0152] Table 6

[0153]

[0154] 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 an OFDM symbol without reserved resources (such as symbol 1, 3, 5, or 6), the value of the first parameter is approximately 3.01 (given by 10log 10 (2) + 3 * 0); when the phase tracking reference signal is on an OFDM symbol with reserved resources (such as symbol 0 or 4), the value of the first parameter is approximately 6 (given by 10log 10 (2)+3*1 to get).

[0155] 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.

[0156] Exemplarily, the transmit power of the phase tracking reference signal on OFDM symbol 0 is determined by at least one of the transmit power of the physical uplink shared channel 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. At this time, 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 the 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 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 contains reserved resources.

[0157] Exemplarily, Table 7 shows another possible value of the first parameter:

[0158] Table 7

[0159]

[0160] Among them, the configuration of the base station is configuration 1, the number of transmission layers of the physical uplink shared channel is 3, and for fully coherent transmission, the first parameter value on the OFDM symbol without reserved resources (such as symbol 1, 3, 5, or 6) is approximately 4.77 (obtained by 4.77-3*0), which is used to determine the phase tracking reference signal transmission power of the phase tracking reference signal on the OFDM symbol without reserved resources. The first parameter value on the OFDM symbol with reserved resources (such as symbol 0 or 4) is approximately 1.77 (obtained by 4.77-3*1), which is used to determine the phase tracking reference signal transmission power of the phase tracking reference signal on the OFDM symbol with reserved resources.

[0161] 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 physical uplink shared channel codebook type, the transmit power configuration and the OFDM symbol type.

[0162] Exemplarily, Table 8 shows another possible value of the first parameter:

[0163] Table 8

[0164]

[0165]

[0166] 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 an OFDM symbol without reserved resources (such as symbol 1, 3, 5, or 6), the value of the first parameter is approximately 3.01 (given by 10log 10 (2)-3*0); when the phase tracking reference signal is on an OFDM symbol with reserved resources (such as symbol 0 or 4), the value of the first parameter is approximately 0 (given by 10log 10 (2)-3*1 to get).

[0167] In some embodiments, the transmit power of the phase tracking reference signal on different OFDM symbols is different. Specifically, the transmit power of the phase tracking reference signal on the OFDM symbol with reserved resources is different from the transmit power of the phase tracking reference signal on the OFDM symbol 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 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 transmit power configuration.

[0168] The transmission power of the phase tracking reference signal is determined in any one or more of the above determination methods. That is, any one or more of the above determination methods used by the first node are configured by the second node.

[0169] The following is an exemplary description of modulation symbols provided by an embodiment of the present disclosure.

[0170] In some embodiments, the modulation symbols (or complex symbols) of the physical uplink shared channel are subjected to discrete Fourier transform (DFT) processing (or calculation). The modulation symbols of the physical uplink shared channel are divided into one or more groups. The number of groups is equal to the number of OFDM symbols that do not include DMRS in the physical uplink shared channel. Each group corresponds to an OFDM symbol. The number of modulation symbols contained in a group is equal to 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 number of all REs contained in the OFDM symbol and the number of reserved REs on the symbol. The number of points processed by the DFT is equal to the number of REs contained in the physical uplink shared channel.

[0171] For example, assume that the modulation symbols are x(0), x(1), x(2), x(3), ..., x(N-1), and there are N modulation symbols in total. Then the DFT processing can be expressed as k=0,1,2,3,…,N-1, where y(0),y(1),y(2),y(3),…,y(N-1) are the output sequences after DFT processing, e is a natural constant, j is an imaginary unit, and the number of points processed by DFT is equal to N.

[0172] Perform DFT operation on each group of physical uplink shared channel modulation symbols. If the number of modulation symbols in the group is less than the number of points processed by DFT, or the OFDM symbol corresponding to the group contains reserved resources, then repeat the modulation symbols of the group or extend the modulation symbols. After repeated processing, the number of modulation symbols is equal to the number of points processed by DFT. The number of repetitions is equal to the number of REs of the physical uplink shared channel divided by the number of available REs or the number of modulation symbols in the group.

[0173] Exemplarily, when the number of available REs is half of the frequency domain resources of the physical uplink shared channel or the reserved REs occupy half of the physical uplink shared channel resources, the number of repetitions is 2.

[0174] The repetition processing method includes repetition of the same modulation symbol and / or repetition of different modulation symbols. After repetition, the group of modulation symbols includes multiple modulation symbols. The multiple modulation symbols after repetition of the same modulation symbol are completely the same. The multiple modulation symbols after repetition of different modulation symbols are different.

[0175] Exemplarily, assume that the modulation symbol to be repeated is 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 symbol is x(0), x(1), x(2), x(3), ..., x(N-1), x(0), x(1), x(2), x(3), ..., x(N-1), where 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, and the two segments of modulation symbols are exactly the same. The results of the repetition of different modulation symbols are 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), where 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 of modulation symbols are completely different. The second segment of modulation symbols is the first segment of modulation symbols multiplied by a coefficient (such as a).

[0176] In some embodiments, the manner in which the modulation symbols are repeated depends on the location of the reserved resources or the location of the available resources. Figure 3 with odd-numbered REs) or available resources are located in even-numbered REs (i.e. Figure 3 When the reserved resource is located in an even-numbered RE (i.e. Figure 3 with even-numbered REs) or available resources are located in odd-numbered REs (i.e. Figure 3 When there is an odd-numbered RE in the modulation symbol, different modulation symbols are repeated. The coefficient of the modulation symbol is -1.

[0177] by Figure 3 For example, assume that the modulation symbols of the physical uplink shared channel are x(0), x(1), x(2), x(3), ..., x(479). Group the modulation symbols. 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 an 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. Then 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. Then 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. Then 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).

[0178] The physical uplink shared channel contains 96 REs. The first group contains 48 modulation symbols, which is less than the number of REs contained in the physical uplink shared channel. The number of REs contained in the physical uplink shared channel divided by the number of available REs is 2 (96 divided by 48). Then the modulation symbols in the first group are repeated 2 times. Figure 3 In the example above, the reserved resources are located on odd REs (i.e., REs with odd indexes). Repeat the same modulation symbols in the first group. After repetition, the modulation symbols are x(0), x(1), …, x(47), x(0), x(1), …, x(47). Perform DFT processing on the sequence according to the above example. The number of DFT operation points is 96. Assume that Figure 3In the example above, the reserved resources are located at even numbers (i.e., REs with even indexes). The modulation symbols in the first group are repeated with different modulation symbols. After repetition, the modulation symbols are x(0), x(1), …, x(47), -x(0), -x(1), …, -x(47). DFT processing is performed on the sequence according to the above example. The number of points for DFT operation is 96.

[0179] It should be noted that the physical uplink shared channel modulation symbol here may also include a phase tracking reference signal sequence or a phase tracking reference signal sequence symbol.

[0180] In some embodiments, the terminal will continue to perform precoding processing on the sequence after DFT processing, and map the processed complex-valued symbols to corresponding resources. The terminal maps the complex-valued symbols to physical uplink shared channel resources. Optionally, the terminal carries the complex-valued symbols mapped to the shared channel resources on the shared channel for transmission.

[0181] In some embodiments, the first node reports the measurement result. The measurement result includes the measurement results of one or more measurement resources. The measurement result of each measurement resource is indicated using a measurement result information. The measurement result information includes one or more bits. The first node sends the measurement result information to the second node. The physical uplink shared channel or the physical uplink control channel carries the measurement result or includes the measurement result information. A measurement resource includes one or more resource blocks in the frequency domain. In some embodiments, the measurement result value is reported or indicated in a direct (or absolute) manner, that is, the measurement result information directly indicates the measurement result.

[0182] Exemplarily, Table 9 shows the indicative relationship between the measurement result and the measurement result information:

[0183] Table 9

[0184]

[0185] The measurement result information contains 7 bits of information 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' (indicating 3); if the measurement result is greater than or equal to -46 and less than -45, the measurement report information is '1011111' (indicating 95); if the receiving end cannot detect the measurement signal because the measurement signal is too strong, the measurement result is 'infinity' and the measurement report information is '1100010' (indicating 98).

[0186] In some embodiments, the measurement result is reported in an indirect (or relative) manner, that is, 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.

[0187] Exemplarily, Table 10 shows the relationship between the measurement result information and the indicated difference value:

[0188] Table 10

[0189] Report value Difference D unit 0 0≥D>-2 dB 1 -2≥D>-4 dB 2 -4≥D>-6 dB 3 -6≥D>-8 dB 4 -8≥D>-10 dB 5 -10≥D>-12 dB 6 -12≥D dB 7

[0190] The measurement result information contains 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).

[0191] In some embodiments, at least one measurement resource is associated with a channel state information (CSI) report. The first node reports the maximum or minimum one or more measurement results of at least one measurement resource. The maximum or minimum measurement results of one or more measurement resources are included in a channel state information report. The number of measurement results included in the channel state information report is configured by the second node. Exemplarily, one channel state information is associated with 8 measurement resources, and their measurement results are S1, S2, S3, S4, S5, S6, S7, S8, and S1>S2>S3>S4>S5>S6>S7>S8. The second node configures the channel state information to include 4 measurement results. The first node reports the 4 measurement results with the largest measurement results, and the channel state information report includes S1, S2, S3, and S4. The first node reports the 4 measurement results with the smallest measurement results, and the channel state information report includes S5, S6, S7, and S8.

[0192] The first node sends a physical uplink shared channel or a physical uplink control channel to the second node. The physical uplink shared channel or the physical uplink control channel 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 physical uplink shared channel or the physical uplink control channel. The configuration information configures the physical uplink shared channel or the physical uplink control channel.

[0193] In some embodiments, the maximum or minimum measurement result of a channel state information report is reported in a direct manner (such as the indication method shown in Table 9). Other measurement results are reported in an indirect manner (such as the indication method shown in Table 10). The reference value of the indirect reporting method is the measurement result reported in a direct manner, that is, the maximum or minimum measurement result of the measurement result in the channel state information report.

[0194] In some embodiments, a measurement result with a measurement result of 'infinity' cannot be reported in a direct manner. That is, a measurement result with the maximum or minimum measurement result in a channel state information report and which is not 'infinity' is reported in a direct manner (such as the indication method shown in Table 9). Other measurement results are reported in an indirect manner (such as the indication method shown in Table 10). In some embodiments, a measurement result with a measurement result of 'infinity' is reported in an interval manner (such as the indication method shown in Table 10). A measurement result information value is used to indicate that the measurement result is 'infinity'. Exemplarily, in Table 10, information value 7 (represented by 3-bit information '111') is used to indicate that the measurement result is 'infinity'.

[0195] 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 reported in a direct manner (such as the indication method shown in Table 9). Other measurement results are reported in an interval manner (such as the indication method shown in Table 10). The reference value of the indirect reporting method is the maximum result value that can be reported in a direct manner (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).

[0196] 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 as the maximum result value that can be reported in a direct manner (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) when reported.

[0197] This reporting method can provide effective measurement results, especially "infinite" measurement results, so that the second node can obtain effective measurement results.

[0198] The communication method provided by the embodiment of the present disclosure can be applied to Figure 1 A second node 102 in the communication system is shown. Figure 4 A flow chart of another communication method is shown, Figure 4As shown, the communication method includes the following S401-S402:

[0199] S401. Send control information to a first node.

[0200] The control information is used to schedule a physical channel, and the resources of the physical channel include reserved resources;

[0201] S402: Receive a physical channel sent by a first node on a physical channel resource, or receive a physical channel and a phase tracking reference signal sent by a first node on a physical channel resource.

[0202] In some embodiments, the method further comprises:

[0203] Sending first configuration information to the first node;

[0204] The first configuration information is used to configure at least one of the following:

[0205] The frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

[0206] In some embodiments, the transmit power of the phase tracking reference signal is determined based on the transmit power of the physical channel and a first ratio; the first ratio is the ratio between the transmit power of the physical channel and the transmit power of the phase tracking reference signal.

[0207] In some embodiments, part of the time domain resources in the resources of the physical channel include reserved resources; the physical channel is one of the following:

[0208] There is no physical channel on the orthogonal frequency division multiplexing OFDM symbol with reserved resources;

[0209] Physical channels on OFDM symbols with reserved resources;

[0210] The phase tracking reference signal is located on the physical channel of the OFDM symbol.

[0211] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

[0212] In some embodiments, the ratio between the transmit power of the phase tracking reference signal and the transmit power of the physical channel is determined based on at least one of the following:

[0213] The number of transmission layers of the physical channel, the transmission mode of the physical channel, the number of antenna ports for sending the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes an OFDM symbol with reserved resources or an OFDM symbol with no reserved resources.

[0214] In some embodiments, the transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0215] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0216] The transmission power of the phase tracking reference signal on different OFDM symbols is the same;

[0217] The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on an OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol;

[0218] The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

[0219] It should be noted that the application Figure 1 The explanation of the embodiment of the communication method of the second node 102 in the communication system shown in FIG. Figure 1 The explanation of the embodiment of the first node 101 in the communication system is shown and will not be repeated here.

[0220] The disclosed embodiment can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the disclosed embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0221] Figure 5 is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure, and the communication device can execute the communication method provided by the above method embodiment. Figure 5 As shown, the communication device includes: a receiving module 501 and a sending module 502.

[0222] A receiving module 501 is configured to receive control information sent by a second node, where the control information is used to schedule a physical channel, and resources of the physical channel include reserved resources;

[0223] The sending module 502 is used to send a physical channel to the second node on the resources of the physical channel based on the control information, or send a physical channel and a phase tracking reference signal to the second node on the resources of the physical channel.

[0224] In some embodiments, the receiving module 501 is further used to receive first configuration information from the second node; wherein the first configuration information is used to configure at least one of the following:

[0225] The frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

[0226] In some embodiments, the transmit power of the phase tracking reference signal is determined based on the transmit power of the physical channel and a first ratio; the first ratio is the ratio between the transmit power of the physical channel and the transmit power of the phase tracking reference signal.

[0227] In some embodiments, part of the time domain resources in the resources of the physical channel include reserved resources; the physical channel is one of the following:

[0228] There is no physical channel on the orthogonal frequency division multiplexing OFDM symbol with reserved resources;

[0229] Physical channels on OFDM symbols with reserved resources;

[0230] The phase tracking reference signal is located on the physical channel of the OFDM symbol.

[0231] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

[0232] In some embodiments, the ratio between the transmit power of the phase tracking reference signal and the transmit power of the physical channel is determined based on at least one of the following:

[0233] The number of transmission layers of the physical channel, the transmission mode of the physical channel, the number of antenna ports for sending the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes an OFDM symbol with reserved resources or an OFDM symbol with no reserved resources.

[0234] In some embodiments, the transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0235] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0236] The transmission power of the phase tracking reference signal on different OFDM symbols is the same;

[0237] The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on an OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol;

[0238] The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

[0239] In some embodiments, the communication device further includes a processing module 503 .

[0240] The processing module 503 is used to generate a modulation symbol; the modulation symbol includes a modulation symbol corresponding to a physical channel, or includes a modulation symbol corresponding to a physical channel and a modulation symbol corresponding to a phase tracking reference signal;

[0241] The processing module 503 is further used to perform discrete Fourier transform processing on the modulation symbols;

[0242] The processing module 503 is further used to perform precoding processing on the modulation symbols after discrete Fourier transform processing;

[0243] The sending module 502 is specifically configured to send a physical channel carrying the modulation symbols after the precoding process.

[0244] In some embodiments, performing discrete Fourier transform processing on modulation symbols includes performing discrete Fourier transform processing on modulation symbols in a target OFDM symbol; performing discrete Fourier transform processing on modulation symbols in a target OFDM symbol includes repeated processing or extended processing on the modulation symbols; the target OFDM symbol is: an OFDM symbol in which reserved resources exist or an OFDM symbol in which the number of modulation symbols is less than the number of points of the discrete Fourier transform; the number of modulation symbols after repeated processing or extended processing is equal to the number of points of the discrete Fourier transform or equal to the number of resource units of the physical channel in the OFDM symbol in which no reserved resources exist.

[0245] In some embodiments, the repetitive processing includes repetitive processing of the same modulation symbol and / or repetitive processing of different modulation symbols.

[0246] In some embodiments, the manner of repetition 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.

[0247] In some embodiments, the number of repetitions is determined based on a ratio between the number of available resources in an OFDM symbol and the number of resources of a physical channel to which the OFDM symbol corresponds.

[0248] Figure 6 is a schematic diagram of the structure of another communication device provided by an embodiment of the present disclosure, and the communication device can execute the communication method provided by the above method embodiment. Figure 6 As shown, the communication device includes: a sending module 601 and a receiving module 602.

[0249] A sending module 601 is used to send control information to the first node, where the control information is used to schedule a physical channel, and the resources of the physical channel include reserved resources;

[0250] The receiving module 602 is used to receive a physical channel sent by the first node on the resources of the physical channel, or to receive a physical channel and a phase tracking reference signal sent by the first node on the resources of the physical channel.

[0251] In some embodiments, the sending module 601 is further configured to send first configuration information to the first node;

[0252] The first configuration information is used to configure at least one of the following:

[0253] The frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

[0254] In some embodiments, the transmit power of the phase tracking reference signal is determined based on the transmit power of the physical channel and a first ratio; the first ratio is the ratio between the transmit power of the physical channel and the transmit power of the phase tracking reference signal.

[0255] In some embodiments, part of the time domain resources in the resources of the physical channel include reserved resources; the physical channel is one of the following:

[0256] There is no physical channel on the orthogonal frequency division multiplexing OFDM symbol with reserved resources;

[0257] Physical channels on OFDM symbols with reserved resources;

[0258] The phase tracking reference signal is located on the physical channel of the OFDM symbol.

[0259] In some embodiments, the phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

[0260] In some embodiments, the ratio between the transmit power of the phase tracking reference signal and the transmit power of the physical channel is determined based on at least one of the following:

[0261] The number of transmission layers of the physical channel, the transmission mode of the physical channel, the number of antenna ports for sending the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes an OFDM symbol with reserved resources or an OFDM symbol with no reserved resources.

[0262] In some embodiments, the transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partially coherent transmission, non-coherent transmission, codebook-based transmission, or non-codebook-based transmission.

[0263] In some embodiments, the phase tracking reference signal satisfies one of the following:

[0264] The transmission power of the phase tracking reference signal on different OFDM symbols is the same;

[0265] The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on an OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol;

[0266] The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

[0267] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. Figure 7 As shown, the communication device includes: a processor 702 and a bus 704. Optionally, the communication device may further include a memory 701; optionally, the communication device may further include a communication interface 703.

[0268] The processor 702 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, 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 the embodiments of the present disclosure. The processor 702 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0269] The communication interface 703 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0270] The memory 701 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0271] As a possible implementation, the memory 701 may exist independently of the processor 702, and the memory 701 may be connected to the processor 702 via a bus 704 to store instructions or program codes. When the processor 702 calls and executes the instructions or program codes stored in the memory 701, the method provided in the embodiment of the present disclosure can be implemented.

[0272] In another possible implementation, the memory 701 may also be integrated with the processor 702 .

[0273] The bus 704 may be an extended industry standard architecture (EISA) bus, etc. The bus 704 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0274] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) having computer program instructions stored therein. When the computer program instructions are executed on a computer, the computer executes a method as described in any of the above embodiments.

[0275] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., compact disks (CD), digital versatile disks (DVD), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0276] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the method described in any one of the above embodiments.

[0277] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to the first node, the method comprises: receiving control information sent by the second node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources; Based on the control information, the physical channel is sent to the second node on the resources of the physical channel, or the physical channel and a phase tracking reference signal are sent to the second node on the resources of the physical channel.

2. The method according to claim 1, characterized in that: The method further comprises: receiving first configuration information from the second node; The first configuration information is used to configure at least one of the following: The frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

3. The method according to claim 1, characterized in that 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, characterized in that: Part of the time domain resources in the resources of the physical channel include the reserved resources; the physical channel is one of the following: There is no physical channel on the orthogonal frequency division multiplexing OFDM symbol of the reserved resource; A physical channel on the OFDM symbol where the reserved resource exists; The phase tracking reference signal is located in a physical channel of the OFDM symbol.

5. The method according to claim 1, characterized in that The phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

6. The method according to claim 5, characterized in that The ratio between the transmit power of the phase tracking reference signal and the transmit 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 for sending the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes an OFDM symbol with reserved resources, or an OFDM symbol with no reserved resources.

7. The method according to claim 6, characterized in that The transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partial coherent transmission, incoherent transmission, codebook-based transmission or non-codebook-based transmission.

8. The method according to claim 1, characterized in that: The phase tracking reference signal satisfies one of the following: The transmission power of the phase tracking reference signal on different OFDM symbols is the same; The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on the OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol; The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

9. The method according to claim 1, characterized in that: The sending the physical channel to the second node on the resource of the physical channel, or sending the physical channel and a phase tracking reference signal to the second node on the resource of the physical channel, comprises: Generate a modulation symbol; the modulation symbol includes a modulation symbol corresponding to the physical channel, or includes a modulation symbol corresponding to the physical channel and a modulation symbol corresponding to the phase tracking reference signal; Performing discrete Fourier transform processing on the modulation symbols; Performing precoding processing on the modulation symbols after the discrete Fourier transform processing; The physical channel carrying the modulation symbols after the precoding process is sent.

10. The method according to claim 9, characterized in that The discrete Fourier transform processing of the modulation symbols includes discrete Fourier transform processing of the modulation symbols in the target OFDM symbols; the discrete Fourier transform processing of the modulation symbols in the target OFDM symbols includes repeated processing or extended processing of the modulation symbols; the target OFDM symbols are: OFDM symbols with reserved resources or OFDM symbols with a number of modulation symbols less than the number of discrete Fourier transform points; the number of modulation symbols after the repeated processing or the extended processing is equal to the number of discrete Fourier transform points or equal to the number of resource units of the physical channel in the OFDM symbol without reserved resources.

11. The method according to claim 10, characterized in that The repetitive processing method includes repetitive processing of the same modulation symbol and / or repetitive processing of different modulation symbols.

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

13. The method according to claim 11, characterized in that The number of repetitive processes is determined based on a ratio between the number of available resources in the OFDM symbol and the number of resources of a physical channel corresponding to the OFDM symbol.

14. A communication method, characterized in that: Applied to the second node, the method comprises: Sending control information to the first node, where the control information is used to schedule a physical channel, where resources of the physical channel include reserved resources; The physical channel sent by the first node is received on the resources of the physical channel, or the physical channel and a phase tracking reference signal sent by the first node are received on the resources of the physical channel.

15. The method according to claim 14, characterized in that The method further comprises: Sending first configuration information to the first node; The first configuration information is used to configure at least one of the following: The frequency domain interval of the phase tracking reference signal, the time domain interval of the phase tracking reference signal, the transmit power of the phase tracking reference signal, the method for determining the transmit 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 sampling density.

16. The method according to claim 14, characterized in that 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, characterized in that Part of the time domain resources in the resources of the physical channel include the reserved resources; the physical channel is one of the following: There is no physical channel on the orthogonal frequency division multiplexing OFDM symbol of the reserved resource; A physical channel on the OFDM symbol where the reserved resource exists; The phase tracking reference signal is located in a physical channel of the OFDM symbol.

18. The method according to claim 14, characterized in that The phase tracking reference signal includes: a phase tracking reference signal sent on an OFDM symbol where a reserved resource exists, or a phase tracking reference signal sent on an OFDM symbol where no reserved resource exists.

19. The method according to claim 18, characterized in that The ratio between the transmit power of the phase tracking reference signal and the transmit 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 for sending the phase tracking reference signal, the transmission power configuration information of the phase tracking reference signal, the symbol type of the OFDM symbol where the phase tracking reference signal is located, or the codebook type of the physical channel transmission; the symbol type of the OFDM symbol includes an OFDM symbol with reserved resources, or an OFDM symbol with no reserved resources.

20. The method according to claim 19, characterized in that The transmission mode of the physical channel includes one of the following: full dual-coherent transmission, partial coherent transmission, incoherent transmission, codebook-based transmission or non-codebook-based transmission.

21. The method according to claim 14, characterized in that The phase tracking reference signal satisfies one of the following: The transmission power of the phase tracking reference signal on different OFDM symbols is the same; The total transmission power of different OFDM symbols is the same; the total transmission power of an OFDM symbol includes the sum of the transmission power of the phase tracking reference signal on the OFDM symbol and the transmission power of the physical channel corresponding to the OFDM symbol; The transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources exist is different from the transmit power of the phase tracking reference signal sent on the OFDM symbol where the reserved resources do not exist.

22. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the processor performs the method according to any one of claims 1 to 13, or the method according to any one of claims 14 to 21.

23. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 13, or to execute the method according to any one of claims 14 to 21.

24. A computer program product, characterized in that The computer program product comprises computer program instructions, and when the computer program instructions are executed, the method according to any one of claims 1 to 13 is implemented, or the method according to any one of claims 14 to 21 is implemented.

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