Data receiving and sending method, communication device and storage medium

Abstract

The embodiment of the invention provides a data receiving and sending method, a communication device and a storage medium, relates to the technical field of communication, and is used for improving the data transmission performance. The data receiving method comprises the following steps: receiving a first signaling sent by a second communication node; the first signaling is used for indicating a data transmission scheme; the data transmission scheme comprises a coding scheme and / or a modulation scheme; and receiving data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a data receiving and sending method, a communication device, and a storage medium. Background Art

[0002] Wireless communication systems are widely used in people's daily life and production. For example, wireless communication systems are applied to video transmission, voice transmission, positioning, machine-to-machine communication in the industrial field, device-to-device communication, and vehicle-to-other-device communication in the vehicle networking. Moreover, more and wider applications have put forward higher and higher requirements for the data transmission performance of wireless communication technologies, such as the efficiency and reliability of data transmission. However, currently in wireless communication systems, the data transmission scheme is single and cannot adapt to the actual channel scenario, thus resulting in low data transmission efficiency of wireless communication systems. Summary of the Invention

[0003] The present disclosure provides a data receiving and sending method, a communication device, and a storage medium for improving data transmission performance.

[0004] In a first aspect, the present disclosure provides a data receiving method, which includes:

[0005] Receiving a first signaling sent by a second communication node, where the first signaling is used to indicate a data transmission scheme, and the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0006] Receiving data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

[0007] In a second aspect, the present disclosure provides a data sending method, which includes:

[0008] Sending a first signaling to a first communication node, where the first signaling is used to indicate a data transmission scheme, and the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0009] Sending data to the first communication node according to the data transmission scheme indicated by the first signaling.

[0010] In a third aspect, the present disclosure provides a communication device, which includes:

[0011] A first receiving module, configured to receive a first signaling sent by a second communication node, where the first signaling is used to indicate a data transmission scheme, and the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0012] A second receiving module, configured to receive data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

[0013] In a fourth aspect, the present disclosure provides another communication device, which includes:

[0014] A first sending module, configured to send a first signaling to a first communication node, where the first signaling is used to indicate a data transmission scheme, and the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0015] A second sending module, configured to send data to the first communication node according to the data transmission scheme indicated by the first signaling.

[0016] In a fifth aspect, the present disclosure further provides a communication device, including: a memory and a processor; the memory and the processor are coupled; the memory is configured to store instructions executable by the processor; when the processor executes the instructions, it executes any method provided in the first aspect or the second aspect.

[0017] In a sixth aspect, the present disclosure provides a computer program product including computer instructions, which, when running on a computer, cause the computer to execute any method provided in the first aspect or the second aspect above.

[0018] Based on the technical solution provided by the present disclosure, the first communication node can perform data transmission based on the data transmission scheme provided by the second communication node, and the data transmission scheme can be configured based on the channel state, so that the data transmission scheme matches the channel state of the transmitted data. Therefore, when the second communication node performs data transmission based on the data transmission scheme, the performance of data transmission can be improved, including the efficiency of data transmission, the correct rate of data transmission, etc. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention, and do not constitute a limitation to the technical solution of the present invention.

[0020] Figure 1 It is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0021] Figure 2 It is a schematic flowchart of a data receiving method provided by an embodiment of the present disclosure;

[0022] Figure 3 It is a schematic flowchart of a data sending method provided by an embodiment of the present disclosure;

[0023] Figure 4 It is a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure;

[0024] Figure 5 It is a schematic diagram of the composition of another communication device provided by an embodiment of the present disclosure;

[0025] Figure 6A schematic structural diagram of a communication device provided by an embodiment of the present disclosure. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0027] In the description of the present disclosure, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more. The words such as "first" and "second" do not limit the quantity and execution order, and the words such as "first" and "second" do not necessarily limit to be different.

[0028] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present disclosure should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, using words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

[0029] In wireless communication technologies, such as long term evolution (LTE) technology, New Radio (NR) technology, etc., orthogonal frequency division multiplexing (OFDM) technology is adopted for multi-carrier modulation, which can effectively combat frequency selective fading and overcome inter-symbol interference (ISI), and then achieve high-speed data transmission. In OFDM technology, the smallest frequency domain unit is a sub-carrier, and the smallest time domain unit is an OFDM symbol. To facilitate the use of frequency domain resources, a resource block (RB) is defined, and a resource block includes a specific number of consecutive sub-carriers. A bandwidth part (BWP) is also defined, and a bandwidth part includes a specific number of consecutive resource blocks on a carrier. In addition, to facilitate the use of time domain resources, a slot is also defined, and a slot definition includes a specific number of consecutive OFDM symbols.

[0030] At present, higher and higher requirements are put forward for the performance of data transmission in wireless communication technologies, such as the efficiency and reliability of data transmission. In a wireless communication system, a transmitting end can map a bit block of a transmission channel to a bit block of a physical channel, and modulate the bit block of the physical channel into a complex-valued symbol block, so as to transmit symbols of the complex-valued symbol block through an antenna port. Correspondingly, a receiving end receives data.

[0031] Exemplarily, a bit block of a transmission channel is mapped to a bit block of a physical channel, the bit block of the physical channel is modulated into a complex-valued symbol block, and then symbols in the complex-valued symbol block are mapped to one or more layers, generating a symbol block of one layer or symbol blocks of multiple layers. Among them, a layer refers to a layer in multi-antenna space division multiplexing for transmitting data, and symbols on different layers are transmitted through different antenna ports. A bit block of a transmission channel can be composed of one or more bits of the transmission channel. For example, a bit block of a transmission channel is a bit string of the transmission channel. A bit block of a physical channel is composed of one or more bits of the physical channel. For example, a bit block of a physical channel is a bit string of the physical channel. The modulated symbol block is composed of one or more symbols, such as a symbol string. A symbol block of a layer is composed of one or more symbols, such as a symbol string.

[0032] Among them, a bit block of a transmission channel is also called a transmission block during transmission. Different transmission blocks may come from different transmission tasks, and different transmission tasks have different transmission quality of service requirements. Therefore, different transmission blocks may correspond to different transmission quality of service requirements. When using multiple antennas to transmit data in a space division multiplexing manner, one layer or multiple layers can be used to transmit data to improve the efficiency of data transmission. The channel states of different layers are not the same. For example, the energies of signals received on each layer are not the same, the interferences suffered by each layer are not the same, and the channel qualities of each layer are not the same; the changes of the channel states of each layer in the frequency domain are not the same, and the changes of the channel states of each layer in the time domain are not the same.

[0033] However, the current method of indicating a data transmission strategy usually makes the data transmission strategy not match the channel states of each layer. In this way, it will lead to a reduction in the performance of data transmission, such as a reduction in the efficiency of data transmission or a reduction in the correct rate of data transmission. Therefore, how to design a data transmission method to make the transmission strategy adapt to the wireless channel state and improve the performance of data transmission is an urgent problem to be solved in related technologies.

[0034] In view of this, the present disclosure provides a data reception method, which includes: a first communication node receives a first signaling sent by a second communication node, where the first signaling is used to indicate a data transmission scheme; the data transmission scheme includes an encoding scheme and / or a modulation scheme, and the first communication node receives data sent by the second communication node according to the data transmission scheme indicated by the first signaling. In this way, the data transmission scheme adopted for transmitting data can be more adapted to the channel state, thereby improving the data transmission performance of the communication system.

[0035] The method provided by the embodiments of the present disclosure can be applied to various communication systems. For example, the communication system can be a Long-Term Evolution (LTE) system, a 5G communication system, a Wi-Fi system, a communication system related to the 3rd generation partnership project (3GPP), a future evolved communication system (such as a 6th generation (6G) communication system, etc.), or a system integrating multiple systems, without limitation. The following takes Figure 1 the communication system 100 shown as an example to describe the method provided by the embodiments of the present disclosure. Figure 1 It is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solutions provided by the present disclosure.

[0036] Figure 1 It is a schematic diagram of the architecture of a communication system provided by the embodiments of the present disclosure. As Figure 1 shown, the communication system 100 may include one or more first communication nodes 11 and one or more second communication nodes 12. The second communication node 12 may be communicatively connected to one or more first communication nodes 11.

[0037] In some embodiments, in the communication system 100, the first communication node and the second communication node communicate through a wireless channel. For example, the first communication node is a terminal device, the second communication node is a network device, and the network device and the terminal device communicate through a wireless channel. Another example is that the first communication node is a terminal device, the second communication node is a wireless router, and the wireless router and the terminal device communicate through a wireless channel.

[0038] Among them, the network device can be used to implement functions such as resource scheduling, radio resource management, and radio access control of the terminal device. For example, it can be an evolved Node B (eNB), a next-generation Node B (gNB), a transmission receive point (TRP), a transmission point (TP), or some other access node. According to the size of the service coverage area provided, the base station can be further divided into a macro base station for providing a macro cell, a pico base station for providing a pico cell, and a femto base station for providing a femto cell. With the continuous evolution of wireless communication technology, future base stations may also adopt other names.

[0039] The terminal device can also be referred to as a terminal, a user equipment (UE), a mobile station, a mobile terminal, etc. Exemplarily, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality terminal, an augmented reality terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote surgery, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and so on. The embodiments of the present disclosure do not limit the specific device form adopted by the terminal.

[0040] Exemplarily, the first communication node is the first base station, the second communication node is the second base station, and the first base station communicates with the second base station via a wireless channel. For another example, the first communication node is the first terminal, the second communication node is the second terminal, and the first terminal communicates with the second terminal via a wireless channel. For another example, the first communication node is a repeater, the second communication node is a base station, and the base station communicates with the repeater via a wireless channel. For another example, the first communication node is a terminal, the second communication node is a repeater, and the repeater communicates with the terminal via a wireless channel. For another example, the first communication node is the first repeater, the second communication node is the second repeater, and the first repeater communicates with the second repeater via a wireless channel. For another example, the first communication node is a base station, the second communication node is a satellite, and the satellite communicates with the base station via a wireless channel. For another example, the first communication node is a satellite, the second communication node is a base station, and the base station communicates with the satellite via a wireless channel. For another example, the first communication node is a terminal, the second communication node is a satellite, and the satellite communicates with the terminal via a wireless channel. For another example, the first communication node is a satellite, the second communication node is a terminal, and the terminal communicates with the satellite via a wireless channel. For another example, the first communication node is a ground device, the second communication node is an aircraft, and the aircraft communicates with the ground device via a wireless channel. For another example, the first communication node is the first aircraft, the second communication node is the second aircraft, and the first aircraft communicates with the second aircraft via a wireless channel.

[0041] During the communication process, taking the example of the first communication node sending data to the second communication node, the second communication node receives the data sent by the first communication node. Thus, the first communication node can be referred to as the sending end. Correspondingly, the second communication node can be referred to as the receiving end. Or, when the second communication node sends data to the first communication node, the first communication node can be referred to as the receiving end. Correspondingly, the second communication node can be referred to as the sending end.

[0042] It should be noted that Figure 1 it is only an exemplary framework diagram, Figure 1 the number of devices or nodes included therein, the names of each device are not restricted, and in addition to Figure 1 the functional nodes shown, the communication system may further include other nodes or devices, such as core network devices.

[0043] The system architecture and service scenarios described in the embodiments of the present disclosure are for more clearly explaining 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. Those of ordinary skill in the art can know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0044] The following will specifically introduce the embodiments provided by the present disclosure in conjunction with the accompanying drawings of the specification.

[0045] As Figure 2 shown, the present disclosure provides a data receiving method, which is applied to a first node, and the method includes the following steps:

[0046] S101. Receive a first signaling sent by a second communication node, where the first signaling is used to indicate a first data transmission scheme.

[0047] The first data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0048] The encoding scheme may include encoding-related information such as an encoding method and an encoding rate. In one example, when the encoding rate is fixed, the encoding scheme includes the encoding method. In another example, when the encoding method is fixed, the encoding scheme includes the encoding rate. In still another example, the encoding scheme includes both the encoding method and the encoding rate.

[0049] The encoding method includes a convolutional code, a turbo code, a low density parity check (LDPC) code, a polar code, etc. The encoding rate may include: a ratio representing the number of bits before encoding and the number of bits after encoding, the number of bits before encoding when the number of bits after encoding is fixed, the number of bits after encoding when the number of bits before encoding is fixed, etc.

[0050] The modulation scheme can be used to convert digital information into an analog form suitable for transmission between two points in a wired / wireless system. For example, multiple bits are mapped into a complex-valued symbol. The modulation scheme may include binary phase shift keying (BPSK) modulation, quadrature phase shift keying (QPSK) modulation, 8-phase shift keying (PSK) modulation, 16-quadrature amplitude modulation (QAM) modulation, 32QAM modulation, 64QAM modulation,

[0051] 128QAM modulation, 256QAM modulation, 512QAM modulation, 1024QAM modulation,

[0052] 2048QAM modulation, etc.

[0053] In some embodiments, the first signaling indicates a first data transmission scheme, including: the first signaling respectively indicates the coding scheme of the transmission channel for transmitting data and the modulation scheme of the physical channel. Alternatively, the first signaling indicates a combination of the coding scheme and the modulation scheme.

[0054] In some embodiments, the first signaling may explicitly indicate the first data transmission scheme. Alternatively, the first signaling may also implicitly indicate the first transmission scheme. In one example, the first signaling may explicitly indicate the coding scheme or indicate the modulation scheme. Alternatively, the first signaling may explicitly indicate a combination of the coding scheme and the modulation scheme. In another example, the first signaling may implicitly indicate the coding scheme or indicate the modulation scheme. Alternatively, the first signaling may implicitly indicate a combination of the coding scheme and the modulation scheme.

[0055] A way to implicitly indicate the data transmission scheme may include: the first signaling indicates the port of the reference signal associated with the transmitted data, and indicates the data transmission scheme through the port of the demodulation reference signal associated with the transmitted data. For example, the first signaling indicates the port number of the reference signal associated with the transmitted data, and indicates the transmission scheme associated with the port number by the port number. For example, the port number of the reference signal is pre-associated with the transmission scheme or a mapping relationship is established, different port numbers correspond to different transmission schemes, or each port number corresponds to a transmission scheme respectively. Another example is that the ports of the reference signal are divided into different groups, and each port group corresponds to a transmission scheme respectively.

[0056] Another way to implicitly indicate the data transmission scheme may include: the first signaling indicates the transmission frequency band of the data, and indicates the data transmission scheme by the position of the frequency band. For example, the starting position of the frequency band is used to indicate the transmission scheme, that is, the lowest frequency position in the frequency band is used to indicate the transmission scheme. Another example is to indicate the transmission scheme by the highest frequency position in the frequency band. By indicating the transmission scheme by the position of the frequency band for data transmission, a suitable frequency domain position can be selected so that the channel state at this frequency domain position is suitable for the corresponding transmission scheme to transmit data, that is, the data transmission scheme matches the channel state of the frequency domain position of the data transmission frequency band.

[0057] In some embodiments, the above-mentioned first signaling may also be used to indicate at least one port of the reference signal associated with the data. Wherein, the data is the data sent by the second communication node to the first communication node, that is, the data received by the first communication node according to the first data transmission scheme indicated by the first signaling.

[0058] Among them, the reference signals provided in the present disclosure include various types of reference signals, such as channel state information reference signals, demodulation reference signals (DMRS), phase tracking reference signals (PTRS), sounding reference signals (SRS), etc.

[0059] In some embodiments, the first signaling further has at least the following possible implementation manners:

[0060] Implementation manner 1: The first signaling is used to indicate at least one port of the data transmission scheme and the reference signal associated with the data. The data transmission scheme includes the data transmission schemes for the data associated with each port.

[0061] Exemplarily, the data transmission scheme indicated by the first signaling may include at least one first transmission scheme. Among them, each first data transmission scheme corresponds to the data associated with one port respectively. That is to say, the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes for the data associated with each port.

[0062] In an example, the ports of the reference signal associated with the data indicated by the first signaling include port p1 and port p2. Thus, the data transmission scheme indicated by the first signaling may include: the first signaling indicates the data transmission scheme for the data associated with port p1 and the data transmission scheme for the data associated with port p2. That is to say, the first signaling indicates a data transmission scheme for the data associated with port p1 and another data transmission scheme for the data associated with port p2.

[0063] Furthermore, the data transmission scheme for the data associated with port p1 indicated by the first signaling may match the channel state experienced by the reference signal carried by port p1, that is, the data transmission scheme for the data associated with port p1 may match the channel state experienced by the data associated with port p1. Similarly, the data transmission scheme for the data associated with port p2 indicated by the first signaling may match the channel state experienced by the reference signal carried by port p2, that is, the data transmission scheme for the data associated with port p2 may match the channel state experienced by the data associated with port p2. Furthermore, the data transmission scheme for the data associated with port p1 matches the channel state of the radio channel of the layer where the data associated with port p1 is located. The data transmission scheme for the data associated with port p2 matches the channel state of the radio channel of the layer where the data associated with port p2 is located.

[0064] In another example, the ports of the reference signal associated with the data indicated by the first signaling include port p1, port p2, and port p3. The port of the reference signal associated with the data on the first layer is port p1, the port of the reference signal associated with the data on the second layer is port p2, and the port of the reference signal associated with the data on the third layer is port p3. Further, based on ports p1, p2, and p3, the first signaling can respectively indicate the data transmission schemes for the data on the first layer, the data on the second layer, and the data on the third layer.

[0065] In some examples, the ports of the reference signal associated with the data indicated by the first signaling may include 4 ports, and the first signaling indicating the data transmission scheme may include that the first signaling respectively indicates the data transmission schemes for the data associated with each of these 4 ports.

[0066] It should be understood that the above is only an exemplary description of the ports of the reference signal associated with the data indicated by the first signaling, and the ports of the reference signal associated with the data may also have other possible implementation manners, which are not limited in this disclosure.

[0067] It should be noted that the above data and the reference signal associated with the data may be located in the same layer in spatial division multiplexing and experience the same channel state. The port of the reference signal is used to carry the reference signal. The data transmission scheme includes the data transmission schemes for the data associated with each port, that is, the first signaling indicates the data transmission scheme based on the ports of the reference signal associated with the data. It can be understood that the first signaling indicates the data transmission scheme based on the layer in spatial division multiplexing, so that the data transmission scheme matches the channel state of the radio channel used to transmit the data, thereby improving the performance of data transmission.

[0068] Implementation manner 2: The first signaling is used to indicate the data transmission scheme, and the first signaling is also used to indicate the first signal.

[0069] Wherein, the first signal is used to provide a reference for receiving the reference signal associated with the data, and the coding scheme in the data transmission scheme belongs to the first coding scheme set. In addition, the first coding scheme set is determined from at least one coding scheme set based on the first signal.

[0070] In some embodiments, the channel characteristics of the first signal are the same as those of the reference signal, and the channel characteristics include at least one of the following: average delay, time spread, Doppler frequency, and Doppler frequency spread.

[0071] Exemplarily, taking the reference signal as the demodulation reference signal as an example, the first signal can be understood as the channel state information reference signal referred to by the demodulation reference signal. For example, in order to facilitate the first communication node to receive the demodulation reference signal, the first signaling can indicate the channel state information reference signal having the same channel characteristics as the transmission or reception of the demodulation reference signal, so that the first communication node can refer to the relevant information of receiving the channel state information reference signal to receive the corresponding demodulation reference signal. The demodulation reference signal can have at least one of the same channel characteristics as the channel state information reference signal, such as time extension bandwidth, average Doppler frequency, Doppler frequency spread, Doppler frequency, etc.

[0072] In some embodiments, the first set of coding schemes is determined from at least one set of coding schemes based on the type of the first signal.

[0073] In some embodiments, the type of the first signal may include a periodic signal, an aperiodic signal, or a semi-persistent signal, so that the second communication node can determine the first set of coding schemes from multiple candidate sets of coding schemes based on the type of the first signal. Furthermore, a coding scheme can be selected from the first set of coding schemes, that is, the first signaling indicates the coding scheme from the first set of coding schemes. In this way, the coding scheme in the data transmission scheme can be more adapted to the channel state, improving the transmission efficiency.

[0074] Exemplarily, still taking the above reference signal as the demodulation reference signal as an example, the first signal is the channel state information reference signal referred to by the demodulation reference signal. The type of the channel state information reference signal referred to by the demodulation reference signal can be a periodic channel state information reference signal, an aperiodic channel state information reference signal, or a semi-persistent channel state information reference signal. Correspondingly, the transmission characteristics of different types of channel state information reference signals are different, and the characteristics of the channel state information carried can also be different. Thus, the first set of coding schemes can be determined from multiple candidate sets of coding schemes according to the type of the channel state signal referred to by the demodulation reference signal.

[0075] In this way, the coding scheme selected from the first set of coding schemes can better match the channel state of the radio channel for transmitting data. For example, the periodic channel state information reference signal is associated with the set of coding schemes 1, the aperiodic channel state information reference signal is associated with the set of coding schemes 2, and the semi-persistent channel state information reference signal is associated with the set of coding schemes 3. The first set of coding schemes is determined from the candidate sets of coding schemes according to the type of the channel state information reference signal referred to by the demodulation reference signal.

[0076] Implementation 3: The first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate the frequency band for data transmission. The data transmission scheme includes the data transmission scheme for the data transmitted by each frequency domain unit in the frequency band. That is, the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission scheme for the data transmitted by each frequency domain unit of the frequency band.

[0077] Among them, the first signaling can be used to indicate the frequency band for data transmission. Since the frequency band for data transmission consists of multiple frequency domain units, the first signaling can indicate the data transmission scheme according to the frequency domain units on the frequency band, that is, the first signaling indicates the data transmission scheme corresponding to each frequency domain unit on the frequency band.

[0078] Exemplarily, the data transmission scheme indicated by the first signaling may include at least one second transmission scheme. Among them, each second data transmission scheme corresponds to the data transmitted by one frequency domain unit.

[0079] In one example, the frequency band for data transmission includes frequency domain unit 1 and frequency domain unit 2. Thus, the first signaling indicating the data transmission scheme may include: the first signaling indicates the data transmission scheme corresponding to the data transmitted by frequency domain unit 1 and the data transmission scheme corresponding to the data transmitted by frequency domain unit 2.

[0080] In another example, the frequency band for data transmission includes frequency domain unit 1, frequency domain unit 2, frequency domain unit 3, and frequency domain unit 4. Thus, the first signaling indicating the data transmission scheme may include: the first signaling indicates the data transmission scheme corresponding to the data transmitted by frequency domain unit 1, the data transmission scheme corresponding to the data transmitted by frequency domain unit 2, the data transmission scheme corresponding to the data transmitted by frequency domain unit 3, and the data transmission scheme corresponding to the data transmitted by frequency domain unit 4.

[0081] It should be understood that the above is only an exemplary description of the first signaling indicating the frequency band for data transmission. The frequency band for data transmission may also have other possible implementation manners, which are not limited in this disclosure.

[0082] It should be noted that the first signaling indicates the frequency band for data transmission and the first signaling indicates the data transmission scheme according to the frequency domain units on the frequency band. That is, the first signaling indicates the data transmission scheme corresponding to each frequency domain unit according to the frequency domain units on the frequency band, so that the data transmission scheme corresponding to the data of each frequency domain unit can adapt to the channel state of the radio channel of each frequency domain unit to improve the performance of data transmission.

[0083] Implementation 4: The first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate the antenna panel for data transmission; that is, the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission scheme for the data transmitted by each antenna panel.

[0084] Exemplarily, the data transmission scheme indicated by the first signaling may include at least one third transmission scheme. Among them, each third data transmission scheme corresponds to the data transmitted by one antenna panel. Alternatively, the data transmitted by each antenna panel corresponds to multiple third data transmission schemes.

[0085] In one example, the antenna panels for transmitting data include antenna panel 1 and antenna panel 2. Thus, the data transmission scheme indicated by the first signaling may include: the data transmission scheme corresponding to the data transmitted by antenna panel 1 indicated by the first signaling and the data transmission scheme corresponding to the data transmitted by antenna panel 2.

[0086] In another example, the antenna panels for transmitting data include antenna panel 1, antenna panel 2, antenna panel 3, and antenna panel 4. Thus, the data transmission scheme indicated by the first signaling may include: the data transmission scheme corresponding to the data transmitted by antenna panel 1 indicated by the first signaling, the data transmission scheme corresponding to the data transmitted by antenna panel 2, the data transmission scheme corresponding to the data transmitted by antenna panel 3, and the data transmission scheme corresponding to the data transmitted by antenna panel 4.

[0087] It should be noted that the first signaling indicates the antenna panel for transmitting data and the first signaling indicates the transmission scheme for transmitting data according to the indication of the antenna panel. That is, the first signaling indicates the transmission schemes of the data corresponding to the antenna panels respectively according to the indication of the antenna panel, so as to adapt the data transmission schemes corresponding to the antenna panels to the channel states of the radio channels of the antenna panels, so as to improve the performance of data transmission.

[0088] Implementation method 5: The first signaling is used to indicate the data transmission scheme, and the first signaling is also used to indicate at least one second signal. The second signal corresponds to at least one port group of the reference signal associated with the data. The second signal is used to provide a reference based on the common channel characteristics for the corresponding port group; that is, the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with the port groups corresponding to the respective second signals.

[0089] Among them, the above common channel characteristics include at least one of the following: average delay, time extension spread, Doppler frequency, Doppler frequency spread.

[0090] Among them, the second signal can be understood as a signal that provides a reference for the reference signal, for example, providing a reference based on the common channel characteristics. Taking the reference signal as the demodulation reference signal as an example, the second signal can provide a reference for the demodulation reference signal. For example, the channel state information reference signal that provides a reference for receiving the demodulation reference signal mentioned above.

[0091] Exemplarily, the data transmission scheme indicated by the first signaling may include at least one fourth transmission scheme. Among them, each fourth data transmission scheme corresponds to the data associated with a port group.

[0092] In one example, the second signal that provides a reference for the reference signal indicated by the first signaling is the second signal 1 and the second signal 2. And, the port group of the reference signal with the second signal 1 as the reference is the port group 1, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 1. The port group of the reference signal with the second signal 2 as the reference is the port group 2, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 2.

[0093] In another example, the second signals that provide a reference for the reference signal indicated by the first signaling are the second signal 1, the second signal 2, the second signal 3, and the second signal 4. And, the port group of the reference signal with the second signal 1 as the reference is the port group 1, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 1. The port group of the reference signal with the second signal 2 as the reference is the port group 2, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 2. The port group of the reference signal with the second signal 3 as the reference is the port group 3, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 3. The port group of the reference signal with the second signal 4 as the reference is the port group 4, and the first signaling may further indicate the data transmission scheme of the data associated with the port group 4.

[0094] It should be noted that the first signaling indicates the port group of the reference signal based on the second signal used for providing a reference, and indicates the transmission scheme of the data associated with the port group of the reference signal according to the second signal. The channel state of each port group is the same as the channel state of the second signal referenced by its corresponding port group, and the channel states of different port groups are different. Thus, the data transmission scheme of the data associated with each port group can be matched with the channel state of its corresponding port group, thereby improving the performance of data transmission.

[0095] Implementation manner 6: The first signaling is used to indicate the data transmission scheme, and the first signaling is further used to indicate at least one transport block for transmitting data and at least one port of the reference signal associated with the data transmitted by each transport block. The data transmission scheme includes the data transmission scheme for the data transmitted by each transport block. That is, the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission scheme of the data transmitted by each transport block.

[0096] In a possible implementation manner, the ports of the demodulation reference signals associated with the same transport block are located in the same code division multiplexing group, and the ports of the demodulation reference signals associated with different transport blocks are located in different code division multiplexing groups.

[0097] Exemplarily, the above at least one transport block includes a first transport block and a second transport block. All ports of the reference signals associated with the data transmitted by the first transport block are carried on a first code division multiplexing group. All ports of the reference signals associated with the data transmitted by the second transport block are carried on a second code division multiplexing group.

[0098] In one example, the number of transport blocks indicated by the first signaling for data transmission is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme for the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme for the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1 and port 2, and the ports of the reference signals associated with transport block 2 are port 3 and port 4. Among them, port 1 and port 2 are in code division multiplexing group 1, port 3 and port 4 are in code division multiplexing group 2, and code division multiplexing group 1 and code division multiplexing group 2 are different.

[0099] It should be understood that two or more ports are in the same code division multiplexing group, that is, two or more ports are on the same set of time-frequency resources. The ports are distinguished by different code sequences, that is, these two or more ports are in the same set of time-frequency resources in a code division multiplexing manner. Two ports are in different code division multiplexing groups, that is, the two ports are on different time-frequency resource groups.

[0100] In another example, the number of transport blocks indicated by the first signaling for data transmission is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme for the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme for the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1, port 2, port 3 and port 4, and the ports of the reference signals associated with transport block 2 are port 5, port 6, port 7 and port 8. Among them, port 1, port 2, port 3 and port 4 are in code division multiplexing group 1, port 5, port 6, port 7 and port 8 are in code division multiplexing group 2, and code division multiplexing group 1 and code division multiplexing group 2 are different.

[0101] It should be noted that since the channel states on the time-frequency resources of the same code division multiplexing group are the same, the channel state changes of the ports located on the same code division multiplexing group are the same. And the channel states on the time-frequency resources of different code division multiplexing groups are different, so the channel state changes of the ports located on different code division multiplexing groups are different. The first signaling indicates the data transmission scheme for each transport block respectively, and indicates the ports of the reference signals located in the same code division multiplexing group for the same transport block, and indicates the ports of the reference signals located in different code division multiplexing groups for different transport blocks. In this way, it is possible to make the data transmission scheme of each transport block adapt to the channel state experienced by the demodulation reference signal of the corresponding reference signal port, that is, the data transmission scheme of each transport block adapts to the channel state experienced by each transport block, thereby improving the performance of data transmission.

[0102] In another implementation, the ports of the demodulation reference signals associated with the same transport block are located in the same time domain unit, and the ports of the demodulation reference signals associated with different transport blocks are located in different time domain units.

[0103] Exemplarily, the above at least one transport block includes a first transport block and a second transport block. The ports of the reference signals associated with the data transmitted by the first transport block are all carried on the first time domain unit; the ports of the reference signals associated with the data transmitted by the second transport block are all carried on the second time domain unit.

[0104] In one example, the number of transport blocks for data transmission indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1 and port 2, and the ports of the reference signals associated with transport block 2 are port 3 and port 4. Among them, port 1 and port 2 are located in time domain unit 1, port 3 and port 4 are located in time domain unit 2, and time domain unit 1 and time domain unit 2 are different.

[0105] In another example, the number of transport blocks for data transmission indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1, port 2, port 3 and port 4, and the ports of the reference signals associated with transport block 2 are port 5, port 6, port 7 and port 8. Among them, port 1, port 2, port 3 and port 4 are located in time domain unit 1, port 5, port 6, port 7 and port 8 are located in time domain unit 2, and time domain unit 1 and time domain unit 2 are different.

[0106] It should be noted that since the channel states on the time-frequency resources in the same time domain unit are the same, the channel state changes of the ports located in the same time domain unit are the same. However, the channel states on the time-frequency resources in different time domain units are different, so the channel state changes of the ports located in different time domain units are different. The first signaling indicates the data transmission scheme for the data transmitted by each transport block, and indicates the ports of the demodulation reference signals located in the same time domain unit for the same transport block, and indicates the ports of the demodulation reference signals located in different time domain units for different transport blocks. In this way, the data transmission scheme corresponding to each transport block can be adapted to the channel state experienced by the reference signal of the corresponding reference signal port, that is, the transmission scheme of each transport block is adapted to the channel state experienced by each transport block, thereby improving the performance of data transmission.

[0107] In another possible implementation, the ports of the demodulation reference signals associated with the same transport block are located in the same frequency domain unit, and the ports of the demodulation reference signals associated with different transport blocks are located in different frequency domain units.

[0108] Exemplarily, the at least one transport block includes a first transport block and a second transport block. The ports of the reference signals associated with the data transmitted by the first transport block are all carried on the first frequency domain unit; the ports of the reference signals associated with the data transmitted by the second transport block are all carried on the second frequency domain unit.

[0109] In one example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme for the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme for the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1 and port 2, and the ports of the reference signals associated with transport block 2 are port 3 and port 4. Among them, port 1 and port 2 are located in frequency domain unit 1, and port 3 and port 4 are located in frequency domain unit 2, and frequency domain unit 1 and frequency domain unit 2 are different.

[0110] In another example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme for the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme for the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signals associated with transport block 1 are port 1, port 2, port 3, and port 4, and the ports of the reference signals associated with transport block 2 are port 5, port 6, port 7, and port 8. Among them, port 1, port 2, port 3, and port 4 are located in frequency domain unit 1, and port 5, port 6, port 7, and port 8 are located in frequency domain unit 2, and frequency domain unit 1 and frequency domain unit 2 are different.

[0111] It should be noted that since the channel states on the time-frequency resources of the same frequency-domain unit are the same, the channel state changes of the ports located on the same frequency-domain unit are the same. However, the channel states on the time-frequency resources of different frequency-domain units are different, so the channel state changes of the ports located on different frequency-domain units are different. The first signaling indicates the data transmission scheme for the data transmitted by each transport block, and indicates the ports of the reference signals located on the same frequency-domain unit for the same transport block, and indicates the ports of the reference signals located on different frequency-domain units for different transport blocks. In this way, the transmission scheme of each transport block can be adapted to the channel state experienced by the demodulation reference signal of the corresponding demodulation reference signal port, that is, the transmission scheme of each transport block is adapted to the channel state experienced by each transport block, thereby improving the performance of data transmission.

[0112] Implementation method 7: The first signaling is further used to indicate at least one transport block for transmitting data, and respectively indicate at least one port of the reference signal associated with the transmitted data for each transport block, and the frequency-domain density of the corresponding port; wherein, the first signaling indicating the data transmission scheme includes that the first signaling respectively indicates the data transmission scheme of the data transmitted by each transport block.

[0113] In one example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signal associated with transport block 1 are port 1 and port 2, and the ports of the reference signal associated with transport block 2 are port 3 and port 4. Among them, the frequency-domain density of port 1 and port 2 is r1, and the frequency-domain density of port 3 and port 4 is r2.

[0114] In another example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signal associated with transport block 1 are port 1, port 2, port 3, and port 4, and the ports of the reference signal associated with transport block 2 are port 5, port 6, port 7, and port 8. Among them, the frequency-domain density of port 1, port 2, port 3, and port 4 is r1, and the frequency-domain density of port 5, port 6, port 7, and port 8 is r2.

[0115] It should be noted that since the channel state changes of the ports with the same frequency-domain density are the same, while the channel states of the ports with different frequency-domain densities are different, the first signaling indicates the transmission scheme for each transport block respectively, and indicates the ports of the demodulation reference signals with the same frequency-domain density for the same transport block, and indicates the ports of the demodulation reference signals with different frequency-domain densities for different transport blocks. In this way, the transmission scheme of each transport block can be adapted to the channel state experienced by the demodulation reference signal of the corresponding demodulation reference signal port, that is, the transmission scheme of each transport block is adapted to the channel state experienced by each transport block.

[0116] Implementation manner 8: The first signaling is used to indicate the data transmission scheme, and the first signaling is also used to indicate at least one transport block for transmitting data, and respectively indicates at least one port of the reference signal associated with the transmitted data and the transmission power of the corresponding port for each transport block; wherein, the first signaling indicating the data transmission scheme includes that the first signaling respectively indicates the data transmission scheme of the data transmitted by each transport block.

[0117] In one example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signal associated with transport block 1 are port 1 and port 2, and the ports of the reference signal associated with transport block 2 are port 3 and port 4. Among them, the transmission power of port 1 and port 2 is p1, and the transmission power of port 3 and port 4 is p2.

[0118] In another example, the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2. Among them, the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1, and the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2. In addition, the ports of the reference signal associated with transport block 1 are port 1, port 2, port 3, and port 4, and the ports of the reference signal associated with transport block 2 are port 5, port 6, port 7, and port 8. Among them, the transmission power of port 1, port 2, port 3, and port 4 is p1, and the transmission power of port 5, port 6, port 7, and port 8 is p2.

[0119] It should be noted that since the channel state changes of ports with the same transmission power are the same, while the channel states of ports with different transmission powers are different. The first signaling indicates the data transmission scheme for the data transmitted by each transport block, and indicates the ports of the reference signals with the same transmission power for the same transport block, and indicates the ports of the reference signals with different transmission powers for different transport blocks. In this way, the transmission scheme of each transport block can be adapted to the channel state experienced by the reference signal of the corresponding reference signal port, that is, the transmission scheme of each transport block is adapted to the channel state experienced by each transport block.

[0120] In some embodiments, the frequency-domain density of at least one port is determined based on the data transmission scheme.

[0121] Exemplarily, the first signaling is used to indicate the data transmission scheme and at least one port of the reference signal associated with the data. Furthermore, the frequency-domain density of at least one port can be determined based on the data transmission scheme. It should be noted that different frequency-domain densities of ports can be used to represent different degrees of accuracy of channel estimation. Among them, the larger the frequency-domain density of the port, the higher the achievable accuracy of channel estimation. Correspondingly, the smaller the frequency-domain density of the port, the lower the achievable accuracy of channel estimation. That is, the frequency-domain densities of the data transmission schemes of ports associated with different data are different. Thus, when the first signaling indicates the data transmission scheme, the frequency-domain density of the port can be further determined based on the data transmission scheme.

[0122] For example, the frequency-domain density of the port associated with the candidate transmission scheme 1 of the data is frequency-domain density 1, the frequency-domain density of the port associated with the candidate transmission scheme 2 of the data is frequency-domain density 2, ……, and the frequency-domain density of the port associated with the candidate transmission scheme K of the data is frequency-domain density K. Among them, frequency-domain density i and frequency-domain density j may be the same or different.

[0123] It should be noted that the frequency-domain density of the port of the associated demodulation reference signal is determined according to the data transmission scheme, so that the accuracy of channel estimation can be adapted to the data transmission scheme, thereby improving the performance of data transmission.

[0124] In some embodiments, the data transmission scheme is determined based on the frequency-domain density of at least one port.

[0125] Among them, the first signaling indicates the data transmission scheme in an implicit manner.

[0126] Exemplarily, the first signaling indicates the port of the reference signal associated with the transmitted data and indicates the frequency-domain density of the port. That is, the data transmission scheme is indicated in an implicit manner. For example, the data transmission scheme is determined according to the frequency-domain density of the port of the reference signal associated with the transmitted data. It should be noted that different frequency-domain densities of the port can be used to represent different degrees of accuracy of channel estimation. Among them, the larger the frequency-domain density of the port, the higher the achievable accuracy of channel estimation. Correspondingly, the smaller the frequency-domain density of the port, the lower the achievable accuracy of channel estimation. That is, the frequency-domain densities of the data transmission schemes of different data-associated ports are different. Thus, by indicating the frequency-domain density of the port in the first signaling, the data transmission scheme associated with the port can be determined according to the frequency-domain density of the port.

[0127] For example, the data transmission scheme 1 is associated with the frequency-domain density 1 of the port, the data transmission scheme 2 is associated with the frequency-domain density 2 of the port, ……, and the data transmission scheme K is associated with the frequency-domain density K of the port. Among them, the transmission scheme i and the transmission scheme j may be the same or different.

[0128] It should be noted that the data transmission scheme is determined according to the frequency-domain density of the port of the associated demodulation reference signal, so that the accuracy of channel estimation can be adapted to the data transmission scheme, thereby improving the performance of data transmission.

[0129] In some embodiments, the data transmission scheme of the data transmitted by each transport block includes the index number of the combination of the coding scheme and the modulation scheme of the transport block. At least one transport block includes a first transport block and a second transport block, and the index numbers of the combinations of the coding scheme and the modulation scheme of the first transport block and the index number of the combination of the coding scheme and the modulation scheme of the second transport block are both less than the first threshold.

[0130] Exemplarily, the first signaling can indicate the index number of the combination of the coding scheme and the modulation scheme of the first transport block and the index number of the combination of the coding scheme and the modulation scheme of the second transport block, and the index number of the combination of the second transport block is less than the index number of the combination of the first transport block and the first threshold.

[0131] It should be understood that the value of the index number of the combination of the coding scheme and the modulation scheme represents the magnitude of the data transmission rate. It should be noted that since the channel state experienced by the first transport block and the channel state experienced by the second transport block have a certain correlation, the transmission scheme of the first transport block and the transmission scheme of the second transport block have a certain correlation. Among them, the index number of the combination of the second transport block is less than the index number of the combination of the first transport block and the first threshold, which can make the transmission schemes of the two transport blocks match the channel states experienced by the two transport blocks, thereby improving the performance of data transmission.

[0132] In some embodiments, the data transmission scheme is determined by the second communication node based on the channel state. Further, the second communication node may notify the first communication node of the data transmission strategy through control information signaling, i.e., the first signaling, for data transmission. For example, the second communication node transmits a channel state information reference signal, and the first communication node, i.e., the terminal, measures the channel state information reference signal to obtain the channel state information. The terminal reports the channel state information to the base station. The base station formulates a data transmission strategy based on the received channel state information, transmits data according to the formulated data transmission strategy, and notifies the formulated data transmission strategy through control information signaling, i.e., the first signaling. The terminal receives the data transmitted by the base station according to the received data transmission strategy. Another example is that the terminal transmits an uplink reference signal, the base station measures the uplink reference signal to obtain the channel state information, formulates a data transmission strategy according to the obtained channel state information, the base station notifies the formulated data transmission strategy through control information signaling, and the terminal transmits data to the base station according to the received data transmission strategy, and the base station receives the data of the terminal according to the data transmission strategy.

[0133] S102. Receive the data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

[0134] Exemplarily, the first communication node may receive the data based on a reference signal associated with the data sent by the second communication node. Taking the reference signal as a demodulation reference signal as an example, in one example, the first communication node may obtain the wireless channel coefficient of data transmission through the demodulation reference signal and receive the data sent by the second communication node based on the obtained wireless channel coefficient. Among them, the data sent by the second communication node may be demodulated according to the wireless channel coefficient. In another example, the data may be demodulated with reference to the demodulation reference signal. The port of the demodulation reference signal is a mapping of the antenna port transmitting the demodulation reference signal on the wireless transmission resource, such as a mapping in the time-frequency domain resource, or a mapping in the time-frequency-code domain resource. Since the port of the demodulation reference signal is used to carry the demodulation reference signal, the port of the demodulation reference signal associated with the transmitted data is used to carry the demodulation reference signal associated with the transmitted data.

[0135] Based on the technical solution provided by the present disclosure, the first communication node may perform data transmission based on the data transmission scheme provided by the second communication node. The data transmission scheme may be configured based on the channel state so that the data transmission scheme matches the channel state of the transmitted data. Thus, when the second communication node performs data transmission based on the data transmission scheme, the performance of data transmission, including the efficiency of data transmission, the correct rate of data transmission, etc., can be improved.

[0136] In some embodiments, such as Figure 3As shown, the present disclosure also provides a data sending method, which is applied to a second communication node, and the method includes the following steps:

[0137] S201. Send a first signaling to a first communication node, where the first signaling is used to indicate a data transmission scheme.

[0138] Wherein, the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0139] In some embodiments, the first signaling is further used to indicate at least one port of a reference signal associated with the data.

[0140] In some embodiments, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port.

[0141] In some embodiments, the first signaling is further used to indicate a first signal, where the first signal is used to provide a reference for receiving a reference signal associated with the data, and the encoding scheme belongs to a first encoding scheme set; wherein, the first encoding scheme set is determined from at least one encoding scheme set based on the first signal.

[0142] In some embodiments, the channel characteristics of the first signal are the same as those of the reference signal, and the channel characteristics include at least one of the following: average delay, time spread, Doppler frequency, Doppler frequency spread.

[0143] In some embodiments, the first signaling is further used to indicate a frequency band for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each frequency domain unit of the frequency band.

[0144] In some embodiments, the first signaling is further used to indicate an antenna panel for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each antenna panel.

[0145] In some embodiments, the first signaling is further used to indicate at least one second signal, where the second signal corresponds to at least one port group of a reference signal associated with the data, and the second signal is used to provide a reference based on common channel characteristics for the corresponding port group; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port group corresponding to each second signal.

[0146] In some embodiments, the first signaling is further used to indicate at least one transport block for transmitting the data and at least one port of a reference signal associated with the data transmitted by each transport block; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each transport block.

[0147] In some embodiments, at least one transport block includes a first transport block and a second transport block. The ports of the reference signals associated with the data transmitted by the first transport block are all carried in a first code division multiplexing group; the ports of the reference signals associated with the data transmitted by the second transport block are all carried in a second code division multiplexing group.

[0148] In some embodiments, at least one transport block includes a first transport block and a second transport block. The ports of the reference signals associated with the data transmitted by the first transport block are all carried in a first time domain unit; the ports of the reference signals associated with the data transmitted by the second transport block are all carried in a second time domain unit.

[0149] In some embodiments, at least one transport block includes a first transport block and a second transport block. The ports of the reference signals associated with the data transmitted by the first transport block are all carried in a first frequency domain unit; the ports of the reference signals associated with the data transmitted by the second transport block are all carried in a second frequency domain unit.

[0150] In some embodiments, the first signaling is further used to indicate, for each transport block, the frequency domain density of the ports of the reference signals associated with the transmitted data.

[0151] In some embodiments, the first signaling is further used to indicate, for each transport block, the transmission power of the ports of the reference signals associated with the transmitted data.

[0152] In some embodiments, the data transmission scheme of the data transmitted by each transport block includes an index number of the combination of the coding scheme and the modulation scheme of the transport block; at least one transport block includes a first transport block and a second transport block, and the index numbers of the combinations of the coding scheme and the modulation scheme of the first transport block and the second transport block are both less than a first threshold value.

[0153] In some embodiments, the frequency domain density of at least one port is determined based on the data transmission scheme.

[0154] In some embodiments, the data transmission scheme is determined based on the frequency domain density of at least one port.

[0155] S202. Transmit data to a first communication node according to the data transmission scheme indicated by the first signaling.

[0156] In addition, for the detailed description of steps S201 - S202, reference can also be made to the relevant description of steps S101 - S102 above, which will not be elaborated here.

[0157] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between each communication node. It can be understood that in order to implement the above functions, each node, such as a device or equipment, includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0158] The embodiments of the present disclosure can divide the communication device into functional modules according to the above method embodiments. 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 embodiments of the present disclosure is illustrative, only a logical function division, and there may be other division methods in actual implementation. The following takes the example of dividing each functional module corresponding to each function for illustration.

[0159] Figure 4 The following shows a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure. As Figure 4 shown, the communication device 40 includes a first receiving module 401 and a second receiving module 402.

[0160] Among them, the first receiving module 401 is used to receive a first signaling sent by a second communication node. The first signaling is used to indicate a data transmission scheme, and the data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0161] The second receiving module 402 is used to receive the data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

[0162] In some embodiments, the first signaling is further used to indicate at least one port of the reference signal associated with the data.

[0163] In some embodiments, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port.

[0164] In some embodiments, the first signaling is further used to indicate a first signal, and the first signal is used to provide a reference for receiving the reference signal associated with the data. The encoding scheme belongs to a first encoding scheme set; wherein, the first encoding scheme set is determined from at least one encoding scheme set based on the first signal.

[0165] In some embodiments, the channel characteristics of the first signal are the same as those of the reference signal, and the channel characteristics include at least one of the following: average delay, time extension bandwidth, Doppler frequency, and Doppler frequency spread.

[0166] In some embodiments, the first signaling is further used to indicate the frequency band for data transmission; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each frequency domain unit of the frequency band.

[0167] In some embodiments, the first signaling is further used to indicate the antenna panel for data transmission; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each antenna panel.

[0168] In some embodiments, the first signaling is further used to indicate at least one second signal, where the at least one second signal corresponds to at least one port group of the reference signal associated with the data, and the second signal is used to provide a reference based on the common channel characteristics for the corresponding port group; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with the port groups corresponding to the respective second signals.

[0169] In some embodiments, the first signaling is further used to indicate at least one transport block for data transmission and at least one port of the reference signal associated with the data transmitted by each transport block; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each transport block.

[0170] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first code division multiplexing group; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second code division multiplexing group.

[0171] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second time domain unit.

[0172] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second frequency domain unit.

[0173] In some embodiments, the first signaling is further used to respectively indicate the frequency domain density of the ports of the reference signal associated with the data transmitted by each transport block.

[0174] In some embodiments, the first signaling is further used to indicate, for each transport block, the transmission power of the port of the reference signal associated with the transmitted data.

[0175] In some embodiments, the data transmission scheme of the data transmitted by each transport block includes an index number of a combination of an encoding scheme and a modulation scheme of the transport block; at least one transport block includes a first transport block and a second transport block, and the index numbers of the combinations of the encoding scheme and the modulation scheme of the first transport block and the second transport block are both less than a first threshold value.

[0176] In some embodiments, the frequency-domain density of at least one port is determined based on the data transmission scheme.

[0177] In some embodiments, the data transmission scheme is determined based on the frequency-domain density of at least one port.

[0178] For a more detailed description of the above-mentioned first receiving module 401 and second receiving module 402, as well as a more detailed description of each technical feature therein, and a description of beneficial effects, etc., reference can be made to the corresponding method embodiment part above, which will not be elaborated here.

[0179] Figure 5 The following shows a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure. As Figure 5 shown, the communication device 50 includes a first sending module 501 and a second sending module 502.

[0180] Among them, the first sending module 501 is used to send first signaling to a first communication node; the first signaling is used to indicate a data transmission scheme. The data transmission scheme includes an encoding scheme and / or a modulation scheme.

[0181] The second sending module 502 is used to receive data sent by a second communication node according to the data transmission scheme indicated by the first signaling.

[0182] In some embodiments, the first signaling is further used to indicate at least one port of the reference signal associated with the data.

[0183] In some embodiments, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port.

[0184] In some embodiments, the first signaling is further used to indicate a first signal, the first signal is used to provide a reference for the reference signal associated with the received data, and the encoding scheme belongs to a first encoding scheme set; wherein, the first encoding scheme set is determined from at least one encoding scheme set based on the first signal.

[0185] In some embodiments, the channel characteristics of the first signal are the same as those of the reference signal, and the channel characteristics include at least one of the following: average delay, time extension spread, Doppler frequency, and Doppler frequency spread.

[0186] In some embodiments, the first signaling is further used to indicate the frequency band for data transmission; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each frequency domain unit of the frequency band.

[0187] In some embodiments, the first signaling is further used to indicate the antenna panel for data transmission; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each antenna panel.

[0188] In some embodiments, the first signaling is further used to indicate at least one second signal, where the at least one second signal corresponds to at least one port group of the reference signal associated with the data, and the second signal is used to provide a reference based on the common channel characteristics for the corresponding port group; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with the port groups corresponding to each second signal.

[0189] In some embodiments, the first signaling is further used to indicate at least one transport block for data transmission and at least one port of the reference signal associated with the data transmitted by each transport block; the first signaling is used to indicate the data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each transport block.

[0190] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first code division multiplexing group; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second code division multiplexing group.

[0191] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second time domain unit.

[0192] In some embodiments, the at least one transport block includes a first transport block and a second transport block, and the ports of the reference signal associated with the data transmitted by the first transport block are all carried in the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transport block are all carried in the second frequency domain unit.

[0193] In some embodiments, the first signaling is further used to respectively indicate the frequency domain density of the ports of the reference signal associated with the data transmitted by each transport block.

[0194] In some embodiments, the first signaling is further used to indicate, for each transport block, the transmission power of the port of the reference signal associated with the transmitted data.

[0195] In some embodiments, the data transmission scheme of the data transmitted by each transport block includes an index number of a combination of an encoding scheme and a modulation scheme of the transport block; at least one transport block includes a first transport block and a second transport block, and the index numbers of the combinations of the encoding scheme and the modulation scheme of the first transport block and the second transport block are both less than a first threshold.

[0196] In some embodiments, the frequency-domain density of at least one port is determined based on the data transmission scheme.

[0197] In some embodiments, the data transmission scheme is determined based on the frequency-domain density of at least one port.

[0198] For a more detailed description of the above-mentioned first sending module 501 and second sending module 502, as well as a more detailed description of each technical feature therein, and a description of the beneficial effects, etc., reference can be made to the corresponding method embodiment part above, which will not be elaborated here.

[0199] It should be noted that Figure 4 or Figure 5 The module in Figure 4 or Figure 5 can also be referred to as a unit. For example, the processing module can be referred to as a processing unit. Additionally, in the embodiments shown in

[0200] Figure 4 or Figure 5 the names of each module may not be the names shown in the figure. For example, the sending module or the receiving module can also be referred to as a communication module. If each unit in

[0200] Figure 4 or Figure 5 is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present disclosure, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of the various embodiments of the present disclosure. The storage media storing the computer software product include: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0201] In the case where the functions of the above integrated module are implemented in the form of hardware, an embodiment of the present disclosure provides a schematic structural diagram of a communication device. As Figure 6 shown, the communication device 60 includes: a processor 602, a communication interface 603, and a bus 604. Optionally, the communication device 60 may further include a memory 601.

[0202] The processor 602 may be a device that implements or executes various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processor 602 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 can implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. The processor 602 may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0203] The communication interface 603 is used to connect to other devices through a communication network. The communication network may be an Ethernet, a radio access network, a wireless local area network (WLAN), etc.

[0204] The memory 601 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions. It may also be an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium, or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0205] As a possible implementation, the memory 601 may exist independently of the processor 602. The memory 601 may be connected to the processor 602 through the bus 604 and is used to store instructions or program code. When the processor 602 calls and executes the instructions or program code stored in the memory 601, the method provided by the embodiment of the present disclosure can be implemented.

[0206] In another possible implementation, the memory 601 may also be integrated with the processor 602.

[0207] The bus 604 can be an extended industry standard architecture (EISA) bus or the like. The bus 604 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 6 only a thick line is used to represent it in Figure 6 , but it does not mean that there is only one bus or one type of bus.

[0208] Through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above division of each functional module is used as an example. In practical applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the device or apparatus is divided into different functional modules to complete all or part of the functions described above.

[0209] The embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the processes in the above method embodiments can be instructed by computer instructions to complete the relevant hardware. The program can be stored in the above computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be the memory in any of the foregoing embodiments. The above computer-readable storage medium can also be an external storage device of the above device or apparatus, such as a plug-in hard disk equipped on the above device or apparatus, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the above computer-readable storage medium can also include both the internal storage unit of the above device or apparatus and the external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above device or apparatus. The above computer-readable storage medium can also be used to temporarily store the data that has been output or will be output.

[0210] The embodiments of the present disclosure also provide a computer program product. The computer product includes a computer program. When the computer program product runs on a computer, the computer is caused to execute any of the methods provided in the above embodiments.

[0211] Although the present disclosure has been described in combination with various embodiments herein, however, in the process of implementing the claimed present disclosure, those skilled in the art can understand and achieve other changes of the disclosed embodiments by viewing the drawings, the disclosure content, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps,

[0212] The use of the word "a" or "an" does not exclude a plurality. A single processor or other unit may implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce a good effect.

[0213] Although the present disclosure has been described in connection with specific features and their embodiments, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the disclosure. Accordingly, the present specification and drawings are merely exemplary illustrations of the disclosure defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the disclosure. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure is also intended to include these changes and modifications.

[0214] As described above, the foregoing are only specific embodiments 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 by the present disclosure should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A data receiving method, characterized in that, applied to a first communication node, the method includes: receiving a first signaling sent by a second communication node; the first signaling is used to indicate a data transmission scheme; the data transmission scheme includes a coding scheme and / or a modulation scheme; receiving the data sent by the second communication node according to the data transmission scheme indicated by the first signaling.

2. The method according to claim 1, characterized in that, the first signaling is further used to indicate at least one port of the reference signal associated with the data.

3. The method according to claim 2, characterized in that, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port.

4. The method according to claim 1, characterized in that, the first signaling is further used to indicate a first signal, the first signal is used to provide a reference for receiving the reference signal associated with the data, and the coding scheme belongs to a first coding scheme set; wherein, the first coding scheme set is determined from at least one coding scheme set based on the first signal.

5. The method according to claim 4, characterized in that, the channel characteristics of the first signal are the same as the channel characteristics of the reference signal, and the channel characteristics include at least one of the following: average delay, time extension bandwidth, Doppler frequency, Doppler frequency spread.

6. The method according to claim 1, characterized in that, the first signaling is further used to indicate the frequency band for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each frequency domain unit of the frequency band.

7. The method according to claim 1, characterized in that, the first signaling is further used to indicate the antenna panel for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each of the antenna panels.

8. The method according to claim 1, characterized in that, the first signaling is further used to indicate at least one second signal, the second signal corresponds to at least one port group of the reference signal associated with the data, and the second signal is used to provide a reference based on common channel characteristics for the corresponding port group; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port group corresponding to each of the second signals.

9. The method according to claim 1, characterized in that, the first signaling is further used to indicate at least one transport block for transmitting the data and at least one port of the reference signal associated with the data transmitted by each transport block; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data transmitted by each of the transport blocks.

10. The method according to claim 9, characterized in that, The at least one transport block includes a first transport block and a second transport block. All ports of the reference signals associated with the data transmitted by the first transport block are carried in a first code division multiplexing group; all ports of the reference signals associated with the data transmitted by the second transport block are carried in a second code division multiplexing group.

11. The method according to claim 9, wherein, the at least one transport block includes a first transport block and a second transport block. All ports of the reference signals associated with the data transmitted by the first transport block are carried in a first time domain unit; all ports of the reference signals associated with the data transmitted by the second transport block are carried in a second time domain unit.

12. The method according to claim 9, wherein, the at least one transport block includes a first transport block and a second transport block. All ports of the reference signals associated with the data transmitted by the first transport block are carried in a first frequency domain unit; all ports of the reference signals associated with the data transmitted by the second transport block are carried in a second frequency domain unit.

13. The method according to claim 9, wherein, the first signaling is further used to indicate, for each transport block, the frequency domain density of the ports of the reference signals associated with the transmitted data.

14. The method according to claim 9, wherein, the first signaling is further used to indicate, for each transport block, the transmission power of the ports of the reference signals associated with the transmitted data.

15. The method according to claim 9, wherein, the data transmission scheme of the data transmitted by each transport block includes the index number of the combination of the coding scheme and the modulation scheme of the transport block. The at least one transport block includes a first transport block and a second transport block. The index numbers of the combinations of the coding scheme and the modulation scheme of the first transport block and the second transport block are both less than a first threshold value.

16. The method according to claim 2, wherein, the frequency domain density of the at least one port is determined based on the data transmission scheme.

17. The method according to claim 2, wherein, the data transmission scheme is determined based on the frequency domain density of the at least one port.

18. A data sending method, wherein, applied to a second communication node, the method includes: sending a first signaling to a first communication node; the first signaling is used to indicate a data transmission scheme; the data transmission scheme includes a coding scheme and / or a modulation scheme; sending data to the first communication node according to the data transmission scheme indicated by the first signaling.

19. The method according to claim 18, wherein, the first signaling is further used to indicate at least one port of the reference signal associated with the data.

20. The method according to claim 19, wherein, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission schemes of the data associated with each port.

21. The method according to claim 18, wherein, The first signaling is further used to indicate a first signal, where the first signal is used to provide a reference for a reference signal associated with the received data, and the coding scheme belongs to a first coding scheme set; wherein, the first coding scheme set is determined from at least one coding scheme set based on the first signal.

22. The method according to claim 21, wherein, channel characteristics of the first signal are the same as those of the reference signal, and the channel characteristics include at least one of the following: average delay, time spread, Doppler frequency, and Doppler frequency spread.

23. The method according to claim 21, wherein, the first signaling is further used to indicate a frequency band for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates data transmission schemes of data transmitted by each frequency domain unit of the frequency band.

24. The method according to claim 21, wherein, the first signaling is further used to indicate an antenna panel for transmitting the data; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates data transmission schemes of data transmitted by each of the antenna panels.

25. The method according to claim 21, wherein, the first signaling is further used to indicate at least one second signal, where the second signal corresponds to at least one port group of the reference signal associated with the data, and the second signal is used to provide a reference based on common channel characteristics for the corresponding port group; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates data transmission schemes of data associated with each port group corresponding to the second signal.

26. The method according to claim 21, wherein, the first signaling is further used to indicate at least one transport block for transmitting the data and at least one port of the reference signal associated with the data transmitted by each transport block; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates data transmission schemes of data transmitted by each of the transport blocks.

27. The method according to claim 26, wherein, the at least one transport block includes a first transport block and a second transport block, ports of the reference signal associated with the data transmitted by the first transport block are all carried in a first code division multiplexing group; ports of the reference signal associated with the data transmitted by the second transport block are all carried in a second code division multiplexing group.

28. The method according to claim 26, wherein, the at least one transport block includes a first transport block and a second transport block, ports of the reference signal associated with the data transmitted by the first transport block are all carried in a first time domain unit; ports of the reference signal associated with the data transmitted by the second transport block are all carried in a second time domain unit.

29. A communication device, wherein, comprises: a memory and a processor; the memory and the processor are coupled; the memory is used to store instructions executable by the processor; when the processor executes the instructions, it executes the method according to any one of claims 1 to 28.

30. A computer-readable storage medium, It is characterized in that computer instructions are stored on the computer-readable storage medium, and when the computer instructions run on the communication device, the communication device is caused to execute the method according to any one of claims 1 to 28.

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