WO2025112792A1 - 数据接收和发送方法、通信装置及存储介质 - Google Patents

数据接收和发送方法、通信装置及存储介质 Download PDF

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Publication number
WO2025112792A1
WO2025112792A1 PCT/CN2024/118052 CN2024118052W WO2025112792A1 WO 2025112792 A1 WO2025112792 A1 WO 2025112792A1 CN 2024118052 W CN2024118052 W CN 2024118052W WO 2025112792 A1 WO2025112792 A1 WO 2025112792A1
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Prior art keywords
data
signaling
port
data transmission
scheme
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English (en)
French (fr)
Inventor
李永
鲁照华
王建伟
李伦
肖华华
刘文丰
魏兴光
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a data receiving and sending method, a communication device and a storage medium.
  • Wireless communication systems are widely used in people's daily life and production.
  • wireless communication systems are used in video transmission, voice transmission, positioning, machine-to-machine communication in the industrial field, device-to-device communication, and communication between vehicles and other devices in the Internet of Vehicles.
  • More and more extensive applications also put forward higher and higher requirements on the performance of data transmission of wireless communication technology, such as data transmission efficiency and reliability.
  • an embodiment of the present disclosure provides a data receiving method.
  • the data receiving method includes:
  • the first signaling is used to indicate a data transmission scheme, where the data transmission scheme includes a coding scheme and/or a modulation scheme;
  • the data sent by the second communication node is received.
  • an embodiment of the present disclosure provides a data transmission method.
  • the data transmission method includes:
  • data is sent to the first communication node.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes: a first receiving module and a second receiving module;
  • a first receiving module used to receive a first signaling sent by a second communication node, where the first signaling is used to indicate a data transmission scheme, where the data transmission scheme includes a coding scheme and/or a modulation scheme;
  • the second receiving module is used to receive data sent by the second communication node according to the data transmission scheme indicated by the first signaling.
  • an embodiment of the present disclosure provides another communication device.
  • the communication device includes: a first sending module and a second sending module;
  • a first sending module used to send a first signaling to a first communication node, where the first signaling is used to indicate a data transmission scheme, where the data transmission scheme includes a coding scheme and/or a modulation scheme;
  • the second sending module is used to send data to the first communication node according to the data transmission scheme indicated by the first signaling.
  • an embodiment of the present disclosure further provides a communication device.
  • the communication device includes: 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 any method provided according to the first aspect or the second aspect.
  • an embodiment of the present disclosure provides a computer program product comprising computer instructions, which, when executed on a computer, enables the computer to execute any of the methods provided in the first aspect or the second aspect.
  • FIG. 1 is a schematic diagram of an architecture of a communication system according to some embodiments.
  • FIG2 is a schematic flow chart of a data receiving method according to some embodiments.
  • FIG3 is a schematic flow chart of a data sending method according to some embodiments.
  • FIG. 4 is a schematic diagram showing components of a communication device according to some embodiments.
  • FIG5 is a schematic diagram showing the composition of another communication device according to some embodiments.
  • FIG6 is a schematic diagram of the structure of a communication device according to some embodiments.
  • A/B can mean A or B.
  • “And/or” in this article is only a way to describe the association relationship of associated objects, indicating that there can be three relationships.
  • a and/or B can mean: only A, only B, and A and B.
  • “at least one” means one or more
  • “plurality” means two or more. Expressions such as “first” and “second” do not limit the quantity and execution order, and expressions such as “first” and “second” do not limit them to be different.
  • orthogonal frequency division multiplexing (OFDM) technology is used for multi-carrier modulation, which can effectively combat frequency selective fading, overcome inter-symbol interference (ISI), and achieve high-speed data transmission.
  • OFDM technology the smallest frequency domain unit is a subcarrier, and the smallest time domain unit is an OFDM symbol.
  • resource blocks (RBs) are defined, and a resource block includes a specific number of continuous subcarriers.
  • Bandwidths (BWPs) are also defined, and a bandwidth includes a specific number of continuous resource blocks on a carrier.
  • time slots are also defined, and a time slot includes a specific number of continuous OFDM symbols.
  • 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 value symbol block, thereby transmitting the symbol of the complex value symbol block through an antenna port.
  • a receiving end receives data.
  • the bit block of the transmission channel is mapped to the bit block of the physical channel, the bit block of the physical channel is modulated into a complex-valued symbol block, and then the symbols in the complex-valued symbol block are mapped to one or more layers to generate a symbol block of one layer or a symbol block of multiple layers.
  • a layer refers to a layer in multi-antenna space division multiplexing, which is used to transmit data, and symbols on different layers are transmitted through different antenna ports.
  • the bit block of the transmission channel can be composed of one or more bits of the transmission channel, for example, the bit block of the transmission channel is a bit string of the transmission channel.
  • the bit block of the physical channel is composed of one or more bits of the physical channel, for example, the bit block of the physical channel is a bit string of the physical channel.
  • the modulated symbol block is composed of one or more symbols, for example, a symbol string.
  • the symbol block of a layer is composed of one or more symbols (for example, a symbol string).
  • a bit block of a transmission channel is also called a transmission block during transmission.
  • Different transmission blocks may come from different transmission tasks. Different transmission tasks have different transmission service quality requirements. Therefore, different transmission blocks may correspond to different transmission service quality requirements.
  • 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 different. For example, the energy of the signal received on each layer is different, the interference suffered by each layer is different, and the channel quality of each layer is different; the channel state of each layer changes differently in the frequency domain, and the channel state of each layer changes differently in the time domain.
  • the current method of indicating the data transmission strategy makes the data transmission strategy usually mismatched with the channel status of each layer, which will lead to reduced data transmission performance, such as reduced data transmission efficiency or reduced data transmission accuracy.
  • Methods to adapt transmission strategies to wireless channel conditions and improve data transmission performance are urgent issues to be solved in some technologies.
  • the present disclosure provides a data receiving method, the method comprising: a first communication node receives 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, and according to the data transmission scheme indicated by the first signaling, the data sent by the second communication node is received.
  • the data transmission scheme used for transmitting data can be more adapted to the channel state, thereby improving the data transmission performance of the communication system.
  • the communication system can be a long-term evolution 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 the sixth generation (6G) communication system, etc.), or a system integrating multiple systems, etc., without limitation.
  • 3GPP 3rd generation partnership project
  • 6G sixth generation
  • the method provided by the embodiment of the present disclosure is described below by taking the communication system 100 shown in FIG. 1 as an example.
  • FIG. 1 is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided by the present disclosure.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • 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 connected to the one or more first communication nodes 11 for communication.
  • the first communication node communicates with the second communication node through a wireless channel.
  • the first communication node is a terminal device
  • the second communication node is a network device
  • the network device and the terminal device communicate through a wireless channel.
  • the first communication node is a terminal device
  • the second communication node is a wireless router
  • the wireless router and the terminal device communicate through a wireless channel.
  • Network equipment can be used to implement functions such as resource scheduling, wireless resource management, and wireless access control of terminal equipment.
  • it can be an evolution node B (eNB), a next generation node B (gNB), a transmission receive point (TRP), a transmission point (TP), and some other access nodes.
  • eNB evolution node B
  • gNB next generation node B
  • TRP transmission receive point
  • TP transmission point
  • base stations can be divided into macro base stations for providing macro cells, micro base stations for providing micro cells (Pico cells), and femto base stations for providing femto cells.
  • future base stations may also adopt other names.
  • the terminal device may also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, etc.
  • the terminal device may 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, etc.
  • the embodiments of the present disclosure do not limit the device form adopted by the terminal.
  • the first communication node is a first base station
  • the second communication node is a second base station
  • the first base station communicates with the second base station through a wireless channel.
  • the first communication node is a first terminal
  • the second communication node is a second terminal
  • the first terminal communicates with the second terminal through a wireless channel.
  • the first communication node is a repeater
  • the second communication node is a base station
  • the base station and the repeater communicate through a wireless channel.
  • the first communication node is a terminal
  • the second communication node is a repeater
  • the repeater and the terminal communicate through a wireless channel.
  • the first communication node is a first repeater, the second communication node is a second repeater, and the first repeater and the second repeater communicate through a wireless channel.
  • the first communication node is a base station, the second communication node is a satellite, and the satellite and the base station communicate through a wireless channel.
  • the first communication node is a satellite, the second communication node is a base station, and the base station and the satellite communicate through a wireless channel.
  • the first communication node is a terminal, the second communication node is a satellite, and the satellite and the terminal communicate through a wireless channel.
  • the first communication node is a satellite, the second communication node is a terminal, and the terminal communicates with the satellite through a wireless channel.
  • the first communication node is a ground device, the second communication node is an aircraft, and the aircraft communicates with the ground device through a wireless channel.
  • the first communication node is a first aircraft, the second communication node is a second aircraft, and the first aircraft communicates with the second aircraft through a wireless channel.
  • the second communication node receives the data sent by the first communication node.
  • the first communication node can be called a sender. Accordingly, the second communication node can be called a receiver.
  • the second communication node sends data to the first communication node, and the first communication node can be called a receiver. Accordingly, the second communication node can be called a sender.
  • Figure 1 is only an exemplary framework diagram. The number of devices or nodes included in Figure 1 and the names of each device are not restricted. In addition to the functional nodes shown in Figure 1, the communication system may also include other nodes or devices (such as core network devices).
  • the present disclosure provides a data receiving method, which is applied to a first node and includes the following steps:
  • S101 Receive a first signaling sent by a second communication node, where the first signaling is used to indicate a first data transmission scheme.
  • the first data transmission scheme includes a coding scheme and/or a modulation scheme.
  • the coding scheme may include coding related information such as coding method, coding rate, etc.
  • the coding scheme in the case of a fixed coding rate, includes the coding method.
  • the coding scheme in the case of a fixed coding method, includes the coding rate.
  • the coding scheme includes both the coding method and the coding rate.
  • Coding methods include convolutional code, turbo code, low density parity check code (LDPC), polar code, etc.
  • the coding rate may include: expressing the ratio of the number of bits before coding to the number of bits after coding, expressing the number of bits before coding when the number of bits after coding is a fixed value, expressing the number of bits after coding when the number of bits before coding is a fixed value, etc.
  • Modulation schemes can be used to convert digital information into an analog form suitable for transmission between two points in a wired/wireless system, such as mapping multiple bits into a complex-valued symbol.
  • Modulation schemes can include binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (PSK), 16-quadrature amplitude modulation (QAM), 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, etc.
  • the first signaling indicates a first data transmission scheme, including: the first signaling separately indicates a coding scheme of a transmission channel and a modulation scheme of a physical channel used to transmit data, or the first signaling indicates a combination of a coding scheme and a modulation scheme.
  • the first signaling may explicitly indicate the first data transmission scheme.
  • the first signaling may also implicitly indicate the first data transmission scheme.
  • the first signaling may explicitly indicate a coding scheme or indicate a modulation scheme.
  • the first signaling may explicitly indicate a combination of a coding scheme and a modulation scheme.
  • the first signaling may implicitly indicate a coding scheme or indicate a modulation scheme.
  • the first signaling may implicitly indicate a combination of a coding scheme and a modulation scheme.
  • a method of implicitly indicating a data transmission scheme may include: a first signaling indicates a port of a reference signal associated with the transmitted data, and the data transmission scheme is indicated by a port of a demodulation reference signal associated with the transmitted data.
  • the first signaling indicates the port number of the reference signal associated with the transmitted data, and the port number is used to indicate the data transmission scheme associated with the port number.
  • the port number of the reference signal is pre-associated with the data transmission scheme, or a mapping relationship is established, and different port numbers correspond to different data transmission schemes, or each port number corresponds to a data transmission scheme.
  • the ports of the reference signal are divided into different groups, and each port group corresponds to a data transmission scheme.
  • the first signaling indicates the transmission frequency band of the data
  • the position of the frequency band indicates the data transmission scheme.
  • the data transmission scheme is indicated by the starting position of the frequency band, that is, the data transmission scheme is indicated by the position of the lowest frequency in the frequency band.
  • Another example is to indicate the data transmission scheme by the position of the highest frequency in the frequency band.
  • the first signaling may also be used to indicate at least one port of a reference signal associated with data.
  • the data is data sent by the second communication node to the first communication node, that is, data received by the first communication node according to the first data transmission scheme indicated by the first signaling.
  • the reference signals provided in the present disclosure include various types of reference signals, such as a channel state information reference signal, a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), etc.
  • DMRS demodulation reference signal
  • PTRS phase tracking reference signal
  • SRS sounding reference signal
  • the first signaling further has at least the following implementation methods:
  • Implementation method 1 The first signaling is used to indicate a data transmission scheme and at least one port of a reference signal associated with data, and the data transmission scheme includes a data transmission scheme for data associated with each port.
  • the data transmission scheme indicated by the first signaling may include at least one first data transmission scheme.
  • Each first data transmission scheme corresponds to data associated with a port. That is, the first signaling is used to indicate the data transmission scheme, including: the first signaling indicates the data transmission scheme of the data associated with each port.
  • the ports of the reference signal associated with the data indicated by the first signaling include port p1 and port p2, so that the data transmission scheme indicated by the first signaling may include: the data transmission scheme of the data associated with port p1 indicated by the first signaling and the data transmission scheme of the data associated with port p2. That is, the first signaling indicates one data transmission scheme for the data associated with port p1, and also indicates another data transmission scheme for the data associated with port p2.
  • the data transmission scheme of the data associated with the first signaling indicating port p1 can match the channel state experienced by the reference signal carried by port p1, that is, the data transmission scheme of the data associated with port p1 can match the channel state experienced by the data associated with port p1.
  • the data transmission scheme of the data associated with the first signaling indicating port p2 can match the channel state experienced by the reference signal carried by port p2, that is, the data transmission scheme of the data associated with port p2 can match the channel state experienced by the data associated with port p2.
  • the data transmission scheme of the data associated with port p1 matches the channel state of the wireless channel of the layer where the data associated with port p1 is located.
  • the data transmission scheme of the data associated with port p2 matches the channel state of the wireless channel of the layer where the data associated with port p2 is located.
  • 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
  • the port of the reference signal associated with the data on the third layer is port p3.
  • the first signaling can indicate the data transmission scheme on the first layer, the data transmission scheme on the second layer, and the data transmission scheme on the third layer, respectively.
  • the ports of the reference signal associated with the data indicated by the first signaling may include four ports, and the data transmission scheme indicated by the first signaling may include the first signaling indicating a data transmission scheme for the data associated with each of the four ports.
  • the data transmission scheme includes a data transmission scheme for the data associated with each port, that is, the first signaling indicates the data transmission scheme based on the port 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 the space division multiplexing, so that the data transmission scheme matches the channel state of the wireless channel used to transmit the data, thereby improving the performance of data transmission.
  • Implementation method 2 The first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate a first signal.
  • the first signal is used to provide a reference for a reference signal associated with received data, and the coding scheme in the data transmission scheme belongs to a first coding scheme set.
  • the first coding scheme set is determined from at least one coding scheme set based on the first signal.
  • 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, delay spread, Doppler frequency, and Doppler frequency spread.
  • the first signal can be understood as a channel state information reference signal referenced by the demodulation reference signal.
  • the first signaling can indicate a 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 the received 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 delay spread, average Doppler frequency, Doppler frequency spread, and Doppler frequency.
  • the first set of coding schemes is determined from at least one set of coding schemes based on a type of the first signal.
  • the type of the first signal may include a periodic signal, a non-periodic signal, or a semi-continuous signal, so that the second communication node can determine the first coding scheme set from a plurality of candidate coding scheme sets based on the type of the first signal.
  • a coding scheme can be selected from the first coding scheme set, that is, the first signaling indicates the coding scheme from the first coding scheme set. In this way, the coding scheme in the data transmission scheme can be more adapted to the channel state and the transmission efficiency can be improved.
  • the first signal is a channel state information reference signal referenced by the demodulation reference signal.
  • the type of the channel state information reference signal referenced by the demodulation reference signal may be a periodic channel state information reference signal, a non-periodic channel state information reference signal, or a semi-persistent channel state information reference signal. Accordingly, different types of channel state information reference signals have different transmission characteristics, and the characteristics of the channel state information carried may also be different.
  • a first coding scheme set may be determined from a plurality of candidate coding scheme sets according to the type of the channel state signal referenced by the demodulation reference signal.
  • the coding scheme selected from the first coding scheme can better match the channel state of the wireless channel for transmitting data.
  • periodic channel state information reference signal associated coding scheme set 1 For example, periodic channel state information reference signal associated coding scheme set 1, non-periodic channel state information reference signal associated coding scheme set 2, semi-persistent channel state information reference signal associated coding scheme set 3.
  • the first coding scheme set is determined from the candidate coding scheme set according to the type of the channel state information reference signal referenced by the demodulation reference signal.
  • the first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate a frequency band for transmitting data, and the data transmission scheme includes a data transmission scheme for data transmitted by each frequency domain unit in the frequency band. That is, the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme for data transmitted by each frequency domain unit of the frequency band respectively.
  • the first signaling can be used to indicate a frequency band for transmitting data. Since the frequency band for transmitting data is composed of multiple frequency domain units, the first signaling can indicate a 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.
  • the data transmission scheme indicated by the first signaling may include at least one second data transmission scheme.
  • Each second data transmission scheme corresponds to data transmitted by a frequency domain unit.
  • the frequency band of the transmitted data includes frequency domain unit 1 and frequency domain unit 2. Therefore, the first signaling indicating the data transmission scheme may include: the first signaling indicating 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.
  • the frequency band of the transmitted data includes frequency domain unit 1, frequency domain unit 2, frequency domain unit 3 and frequency domain unit 4.
  • the first signaling indicating the data transmission scheme may include: the first signaling indicating 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.
  • the first signaling indicates the frequency band used to transmit data 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 schemes corresponding to each frequency domain unit according to the frequency domain units on the frequency band, so that the data transmission schemes corresponding to the data of each frequency domain unit can be adapted to the channel state of the wireless channel of each frequency domain unit to improve the performance of data transmission.
  • Implementation method 4 The first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate an antenna panel used to transmit data; that is, the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of the data transmitted by each antenna panel respectively.
  • the data transmission scheme indicated by the first signaling may include at least one third data transmission scheme.
  • Each third data transmission scheme corresponds to data transmitted by one antenna panel.
  • the data transmitted by each antenna panel corresponds to multiple third data transmission schemes.
  • the antenna panel transmitting data includes antenna panel 1 and antenna panel 2.
  • the first signaling indicating the data transmission scheme may include: the first signaling indicating the data transmission scheme corresponding to the data transmitted by antenna panel 1 and the data transmission scheme corresponding to the data transmitted by antenna panel 2.
  • the antenna panel transmitting data includes antenna panel 1, antenna panel 2, antenna panel 3 and antenna panel 4.
  • the first signaling indicating the data transmission scheme may include: the first signaling indicating the data transmission scheme corresponding to the data transmitted by antenna panel 1, 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.
  • the first signaling indicates the antenna panel used for transmitting data and the first signaling transmits the data transmission scheme according to the antenna panel indication. That is, the first signaling indicates the data transmission schemes corresponding to the antenna panels respectively according to the antenna panels, so that the data transmission schemes corresponding to the antenna panels are adapted to the channel states of the wireless channels of the antenna panels to improve the performance of data transmission.
  • Implementation method 5 The first signaling is used to indicate a 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 a reference signal associated with data, and the second signal is used to provide a reference based on common channel characteristics for the corresponding port group; that is, the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission scheme of the data associated with the port groups corresponding to each second signal.
  • the above common channel characteristics include at least one of the following: average delay, delay spread, Doppler frequency, and Doppler frequency spread.
  • the second signal can be understood as a signal that provides a reference for the reference signal, for example, providing a reference based on a common channel characteristic.
  • the reference signal as a 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.
  • the data transmission scheme indicated by the first signaling may include at least one fourth data transmission scheme.
  • Each fourth data transmission scheme corresponds to data associated with a port group.
  • the first signaling indicates that the second signal providing a reference for the reference signal is the second signal 1 and the second signal 2. Furthermore, the port group of the reference signal with the second signal 1 as a reference is the port group 1, and the first signaling may further indicate a data transmission scheme for the data associated with the port group 1. The port group of the reference signal with the second signal 2 as a reference is the port group 2, and the first signaling may further indicate a data transmission scheme for the data associated with the port group 2.
  • the first signaling indicates that the second signals providing references for the reference signals are second signal 1, second signal 2, second signal 3, and second signal 2.
  • the port group of the reference signals using second signal 1 as a reference is port group 1, and the first signaling may further indicate a data transmission scheme for data associated with port group 1.
  • the port group of the reference signals using second signal 2 as a reference is port group 2, and the first signaling may further indicate a data transmission scheme for data associated with port group 2.
  • the port group of the reference signals using second signal 3 as a reference is port group 3, and the first signaling may further indicate a data transmission scheme for data associated with port group 3.
  • the port group of the reference signals using second signal 4 as a reference is port group 4, and the first signaling may further indicate a data transmission scheme for data associated with port group 3.
  • the signaling may also indicate a data transmission scheme for data associated with port group 4 .
  • the first signaling indicates the port group of the reference signal based on the second signal for providing a reference, and indicates the data transmission scheme 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 the corresponding port group, and the channel states of different port groups are different.
  • the data transmission scheme associated with each port group can match the channel state of the corresponding port group, thereby improving the performance of data transmission.
  • the first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate at least one transport block for transmitting data and at least one port of a reference signal associated with the data transmitted by each transport block, and the data transmission scheme includes a data transmission scheme for the data transmitted by each transport block. That is, the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme for the data transmitted by each transport block respectively.
  • ports of demodulation reference signals associated with the same transport block are located in the same code division multiplexing group, and ports of demodulation reference signals associated with different transport blocks are located in different code division multiplexing groups.
  • the at least one transmission block includes a first transmission block and a second transmission block, and ports of reference signals associated with data transmitted by the first transmission block are all carried in a first code division multiplexing group. Ports of reference signals associated with data transmitted by the second transmission block are all carried in a second code division multiplexing group.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • the ports of the reference signal associated with transport block 1 are port 1 and port 2
  • the ports of the reference signal associated with transport block 2 are port 3 and port 4. Port 1 and port 2 are located in code division multiplexing group 1, port 3 and port 4 are located in code division multiplexing group 2, and code division multiplexing group 1 is different from code division multiplexing group 2.
  • two or more ports are located in the same code division multiplexing group, that is, two or more ports are located on the same set of time-frequency resources, and the ports are distinguished by different code sequences, that is, the two or more ports are located on the same set of time-frequency resources in a code division multiplexing manner.
  • Two ports are located in different code division multiplexing groups, that is, the two ports are located on different time-frequency resource groups.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • 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.
  • Port 1, port 2, port 3, and port 4 are located in code division multiplexing group 1
  • port 5, port 6, port 7, and port 8 are located in code division multiplexing group 2
  • code division multiplexing group 1 is different from code division multiplexing group 2.
  • the first signaling indicates the data transmission scheme for each transmission block, and indicates the ports of the reference signal located in the same code division multiplexing group for the same transmission block, and indicates the ports of the reference signal located in different code division multiplexing groups for different transmission blocks.
  • the data transmission scheme of each transmission block can be adapted to the channel state experienced by the demodulation reference signal of the corresponding reference signal port, that is, the data transmission scheme of each transmission block is adapted to the channel state experienced by each transmission block, thereby improving the performance of data transmission.
  • ports of demodulation reference signals associated with the same transport block are located in the same time domain unit, and ports of demodulation reference signals associated with different transport blocks are located in different time domain units.
  • the at least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second time domain unit.
  • the number of transport blocks used to transmit data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transmission block 2 is data transmission scheme 2.
  • the ports of the reference signal associated with transmission block 1 are port 1 and port 2
  • the ports of the reference signal associated with transmission block 2 are port 3 and port 4. 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 is different from time domain unit 2.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • 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.
  • 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
  • time domain unit 1 is different from time domain unit 2.
  • the first signaling indicates the data transmission scheme for the data transmitted by each transmission block, and indicates the port of the demodulation reference signal located in the same time domain unit for the same transmission block, and indicates the port of the demodulation reference signal located in different time domain units for different transmission blocks.
  • the data transmission scheme corresponding to each transmission 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 transmission block is adapted to the channel state experienced by each transmission block, thereby improving the performance of data transmission.
  • ports of demodulation reference signals associated with the same transport block are located in the same frequency domain unit, and ports of demodulation reference signals associated with different transport blocks are located in different frequency domain units.
  • the at least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second frequency domain unit.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • the ports of the reference signal associated with transport block 1 are port 1 and port 2
  • the ports of the reference signal associated with transport block 2 are port 3 and port 4. Port 1 and port 2 are located in frequency domain unit 1
  • port 3 and port 4 are located in frequency domain unit 2
  • frequency domain unit 1 is different from frequency domain unit 2.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • 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.
  • Port 1, port 2, port 3, and port 4 are located in frequency domain unit 1
  • port 5, port 6, port 7, and port 8 are located in frequency domain unit 2
  • frequency domain unit 1 is different from frequency domain unit 2.
  • the first signaling indicates the data transmission scheme for the data transmitted by each transmission block, and indicates the ports of the reference signal located in the same frequency domain unit for the same transmission block, and indicates the ports of the reference signal located in different frequency domain units for different transmission blocks.
  • the data transmission scheme of each transmission block can be adapted to the channel state experienced by the demodulation reference signal of the corresponding demodulation reference signal port, that is, the data transmission scheme of each transmission block is adapted to the channel state experienced by each transmission block, thereby improving the performance of data transmission.
  • the first signaling is also used to indicate at least one transmission block for transmitting data, and indicates at least one port of a reference signal associated with the transmitted data for each transmission block, and the frequency domain density of the corresponding port; the first signaling indicates a data transmission scheme, including that the first signaling indicates a data transmission scheme for the transmitted data for each transmission block.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • the ports of the reference signal associated with transport block 1 are port 1 and port 2
  • the ports of the reference signal associated with transport block 2 are port 3 and port 4.
  • 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.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • 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.
  • the frequency domain density of port 1, port 2, port 3, and port 4 is r1
  • the frequency domain density of port 5, port 6, port 7, and port 8 is r2.
  • the first signaling indicates the data transmission scheme for each transport block, and indicates the ports with the same frequency domain density of the demodulation reference signal for the same transport block, and indicates the ports with different frequency domain densities of the demodulation reference signal for different transport blocks.
  • the data 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 data transmission scheme of each transport block is adapted to the channel state experienced by each transport block.
  • Implementation method 8 The first signaling is used to indicate a data transmission scheme, and the first signaling is also used to indicate at least one transmission block for transmitting data, indicating at least one port of a reference signal associated with the transmitted data and the transmission power of the corresponding port for each transmission block; the first signaling indicating the data transmission scheme includes that the first signaling indicates the data transmission scheme of the transmitted data for each transmission block.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • the ports of the reference signal associated with transport block 1 are port 1 and port 2
  • the ports of the reference signal associated with transport block 2 are port 3 and port 4.
  • the transmission power of port 1 and port 2 is p1
  • the transmission power of port 3 and port 4 is p2.
  • the number of transport blocks for transmitting data indicated by the first signaling is 2, including transport block 1 and transport block 2.
  • the data transmission scheme of the data transmitted by transport block 1 is data transmission scheme 1
  • the data transmission scheme of the data transmitted by transport block 2 is data transmission scheme 2.
  • 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.
  • the transmission power of port 1, port 2, port 3, and port 4 is p1
  • the transmission power of port 5, port 6, port 7, and port 8 is p2.
  • the first signaling indicates the data transmission scheme for the data transmitted by each transmission block, and indicates the ports of reference signals with the same transmission power for the same transmission block, and indicates the ports of reference signals with different transmission powers for different transmission blocks.
  • the data transmission scheme of each transmission block can be adapted to the channel state experienced by the reference signal of the corresponding reference signal port, that is, the data transmission scheme of each transmission block is adapted to the channel state experienced by each transmission block.
  • the frequency domain density of at least one port is determined based on a data transmission scheme.
  • the first signaling is used to indicate a data transmission scheme and at least one port of a 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 for channel estimation. The larger the frequency domain density of the port, the higher the accuracy of the channel estimation that can be achieved. Correspondingly, the smaller the frequency domain density of the port, the lower the accuracy of the channel estimation that can be achieved. That is, the frequency domain densities of data transmission schemes for different data-associated ports are different. Thus, the first signaling indicates the data transmission scheme, and the frequency domain density of the port can be further determined based on the data transmission scheme.
  • 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 The frequency domain density of is frequency domain density 2
  • the frequency domain density of the port associated with the candidate transmission scheme K of the data is frequency domain density K.
  • the frequency domain density i and the frequency domain density j may be the same or different.
  • the frequency domain density of the ports 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.
  • the data transmission scheme is determined based on a frequency domain density of at least one port.
  • the first signaling indicates the data transmission scheme in an implicit manner.
  • the first signaling indicates the port of the reference signal associated with the transmitted data, and the frequency domain density of the indicated 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.
  • different frequency domain densities of the port can be used to represent different degrees of accuracy of channel estimation. The larger the frequency domain density of the port, the higher the accuracy of the achievable channel estimation.
  • the smaller the frequency domain density of the port the lower the accuracy of the achievable channel estimation. That is, the frequency domain density of the data transmission scheme of different data-associated ports is different. Therefore, the first signaling indicates the frequency domain density of the port, and the data transmission scheme associated with the port can be determined according to the frequency domain density of the port.
  • the frequency domain density 1 of the port is associated with the transmission scheme 1 of the data
  • the frequency domain density 2 of the port is associated with the transmission scheme 2 of the data
  • the frequency domain density K of the port is associated with the transmission scheme K of the data.
  • the transmission scheme i and the transmission scheme j may be the same or different.
  • the data transmission scheme is determined according to the frequency domain density of the ports 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.
  • the data transmission scheme of the data transmitted by each transport block includes an index number of a combination of a coding 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 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 are both less than a first threshold value.
  • the first signaling may indicate an index number of a combination of a coding scheme and a modulation scheme of a first transmission block and an index number of a combination of a coding scheme and a modulation scheme of a second transmission block, and the index number of the combination of the second transmission block and the index number of the combination of the first transmission block are less than a first threshold value.
  • the index value of the combination of the coding scheme and the modulation scheme represents the size of the data transmission rate. It should be noted that, since the channel state experienced by the first transmission block has a certain correlation with the channel state experienced by the second transmission block, the data transmission scheme of the first transmission block has a certain correlation with the data transmission scheme of the second transmission block. The index number of the combination of the second transmission block and the index number of the combination of the first transmission block are less than the first threshold value, so that the data transmission schemes of the two transmission blocks can be matched with the channel state experienced by the two transmission blocks, thereby improving the performance of data transmission.
  • the data transmission scheme is determined by the second communication node based on the channel state. Furthermore, the second communication node can notify the first communication node of the data transmission scheme through control information signaling (i.e., the first signaling) to perform data transmission.
  • control information signaling i.e., the first signaling
  • the second communication node transmits a channel state information reference signal to the base station
  • the first communication node terminal measures the channel state information reference signal to obtain channel state information
  • the terminal reports the channel state information to the base station
  • the base station formulates a data transmission scheme based on the received channel state information
  • the base station transmits data according to the formulated data transmission scheme, and notifies the formulated data transmission scheme with control information signaling (i.e., the first signaling)
  • the terminal receives the data transmitted by the base station according to the received data transmission scheme.
  • the terminal transmits an uplink reference signal
  • the base station measures the uplink reference signal to obtain channel state information, formulates a data transmission scheme based on the obtained channel state information, the base station notifies the formulated data transmission scheme with control information signaling, the terminal transmits data to the base station according to the received data transmission scheme, and the base station receives the data of the terminal according to the data transmission scheme.
  • S102 Receive data sent by the second communication node according to the data transmission scheme indicated by the first signaling.
  • the first communication node may receive the data based on a reference signal associated with the data sent by the second communication node.
  • the first communication node may obtain the wireless information of the data transmission through the demodulation reference signal.
  • the wireless channel coefficient is obtained, and the data sent by the second communication node is received based on the obtained wireless channel coefficient.
  • the data sent by the second communication node can be demodulated according to the wireless channel coefficient.
  • the data can 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 on the time-frequency domain resources, and another example is a mapping on the time-frequency code domain resources. 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.
  • the first communication node can perform data transmission based on the data transmission scheme provided by the second communication node.
  • 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, so that the second communication node performs data transmission based on the data transmission scheme, which can improve the performance of data transmission, including the efficiency of data transmission, the accuracy of data transmission, etc.
  • the present disclosure further provides a data sending method, which is applied to a second communication node and includes the following steps:
  • S201 Send a first signaling to a first communication node, where the first signaling is used to indicate a data transmission scheme.
  • a data transmission scheme includes a coding scheme and/or a modulation scheme.
  • the first signaling is further used to indicate at least one port of a reference signal associated with the data.
  • the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of data associated with each port respectively.
  • the first signaling is also used to indicate a first signal, the first signal is used to provide a reference for a reference signal associated with received data, and the coding scheme belongs to a first coding scheme set; the first coding scheme set is determined from at least one coding scheme set based on the first signal.
  • 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, delay spread, Doppler frequency, and Doppler frequency spread.
  • the first signaling is also used to indicate a frequency band for transmitting data; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme for data transmitted by each frequency domain unit of the frequency band respectively.
  • the first signaling is also used to indicate an antenna panel used to transmit data; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of the data transmitted by each antenna panel respectively.
  • the first signaling is also used to indicate at least one second signal, the second signal corresponding to at least one port group of a reference signal associated with 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 scheme of the data associated with the port groups corresponding to each second signal.
  • the first signaling is also used to indicate at least one transmission block for transmitting data and at least one port of a reference signal associated with the data transmitted by each transmission block; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission scheme of the data transmitted by each transmission block.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of reference signals associated with the data transmitted by the first transmission block are all carried on the first code division multiplexing group; the ports of reference signals associated with the data transmitted by the second transmission block are all carried on the second code division multiplexing group.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second time domain unit.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second frequency domain unit.
  • the first signaling is further used to indicate, for each transport block, the frequency domain density of the port of the reference signal associated with the transmitted data. Spend.
  • the first signaling is further used to indicate, for each transmission block, the transmission power of a port of a reference signal associated with the transmitted data.
  • the data transmission scheme of the data transmitted by each transmission block includes an index number of a combination of a coding scheme and a modulation scheme of the transmission block; at least one transmission block includes a first transmission block and a second transmission block, and the index number of the combination of the coding scheme and the modulation scheme of the first transmission block and the index number of the combination of the coding scheme and the modulation scheme of the second transmission block are both less than a first threshold value.
  • the frequency domain density of at least one port is determined based on a data transmission scheme.
  • the data transmission scheme is determined based on a frequency domain density of at least one port.
  • S201 to S202 can also refer to the relevant description of S101 to S102 mentioned above, which will not be repeated here.
  • each node such as a device or equipment, includes a hardware structure and/or software module corresponding to the execution of each function in order to realize the above functions.
  • the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel 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.
  • the embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module.
  • the above integrated modules may 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 schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.
  • FIG4 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure.
  • the communication device 40 includes a first receiving module 401 and a second receiving module 402 .
  • the first receiving module 401 is configured 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 a coding scheme and/or a modulation scheme.
  • the second receiving module 402 is used to receive data sent by the second communication node according to the data transmission scheme indicated by the first signaling.
  • the first signaling is further used to indicate at least one port of a reference signal associated with the data.
  • the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of data associated with each port respectively.
  • the first signaling is also used to indicate a first signal, the first signal is used to provide a reference for a reference signal associated with received data, and the coding scheme belongs to a first coding scheme set; the first coding scheme set is determined from at least one coding scheme set based on the first signal.
  • 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, delay spread, Doppler frequency, and Doppler frequency spread.
  • the first signaling is also used to indicate a frequency band for transmitting data; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme for data transmitted by each frequency domain unit of the frequency band respectively.
  • the first signaling is also used to indicate an antenna panel used to transmit data; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of the data transmitted by each antenna panel respectively.
  • the first signaling is further used to indicate at least one second signal, the second signal corresponding to at least one reference signal associated with the data.
  • a port group, 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 scheme of the data associated with the port group corresponding to each second signal.
  • the first signaling is also used to indicate at least one transmission block for transmitting data and at least one port of a reference signal associated with the data transmitted by each transmission block; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of the data transmitted by each transmission block respectively.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of reference signals associated with the data transmitted by the first transmission block are all carried on the first code division multiplexing group; the ports of reference signals associated with the data transmitted by the second transmission block are all carried on the second code division multiplexing group.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second time domain unit.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second frequency domain unit.
  • the first signaling is further used to indicate, for each transport block, the frequency domain density of ports of reference signals associated with the transmitted data.
  • the first signaling is further used to indicate, for each transmission block, the transmission power of a port of a reference signal associated with the transmitted data.
  • the data transmission scheme of the data transmitted by each transmission block includes an index number of a combination of a coding scheme and a modulation scheme of the transmission block; at least one transmission block includes a first transmission block and a second transmission block, and the index number of the combination of the coding scheme and the modulation scheme of the first transmission block and the index number of the combination of the coding scheme and the modulation scheme of the second transmission block are both less than a first threshold value.
  • the frequency domain density of at least one port is determined based on a data transmission scheme.
  • the data transmission scheme is determined based on a frequency domain density of at least one port.
  • first receiving module 401 and the second receiving module 402 For a more detailed description of the first receiving module 401 and the second receiving module 402, a more detailed description of each technical feature, and a description of beneficial effects, etc., please refer to the corresponding method embodiment part above, which will not be repeated here.
  • FIG5 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure.
  • the communication device 50 includes a first sending module 501 and a second sending module 502 .
  • the first sending module 501 is used to send 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.
  • the second sending module 502 is used to receive data sent by the second communication node according to the data transmission scheme indicated by the first signaling.
  • the first signaling is further used to indicate at least one port of a reference signal associated with the data.
  • the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme of data associated with each port respectively.
  • the first signaling is also used to indicate a first signal, the first signal is used to provide a reference for a reference signal associated with received data, and the coding scheme belongs to a first coding scheme set; the first coding scheme set is determined from at least one coding scheme set based on the first signal.
  • 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, delay spread, Doppler frequency, and Doppler frequency spread.
  • the first signaling is also used to indicate a frequency band for transmitting data; the first signaling is used to indicate a data transmission scheme, including: the first signaling indicates the data transmission scheme for data transmitted by each frequency domain unit of the frequency band respectively.
  • the first signaling is also used to indicate an antenna panel for transmitting data; the first signaling is used to indicate a data transmission scheme, including In summary: the first signaling respectively indicates the data transmission scheme of the data transmitted by each antenna panel.
  • the first signaling is also used to indicate at least one second signal, the second signal corresponding to at least one port group of a reference signal associated with 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 scheme of the data associated with the port groups corresponding to each second signal.
  • the first signaling is also used to indicate at least one transmission block for transmitting data and at least one port of a reference signal associated with the data transmitted by each transmission block; the first signaling is used to indicate a data transmission scheme, including: the first signaling respectively indicates the data transmission scheme of the data transmitted by each transmission block.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of reference signals associated with the data transmitted by the first transmission block are all carried on the first code division multiplexing group; the ports of reference signals associated with the data transmitted by the second transmission block are all carried on the second code division multiplexing group.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first time domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second time domain unit.
  • At least one transmission block includes a first transmission block and a second transmission block, and the ports of the reference signal associated with the data transmitted by the first transmission block are all carried on the first frequency domain unit; the ports of the reference signal associated with the data transmitted by the second transmission block are all carried on the second frequency domain unit.
  • the first signaling is further used to indicate, for each transport block, the frequency domain density of ports of reference signals associated with the transmitted data.
  • the first signaling is further used to indicate, for each transmission block, the transmission power of a port of a reference signal associated with the transmitted data.
  • the data transmission scheme of the data transmitted by each transmission block includes an index number of a combination of a coding scheme and a modulation scheme of the transmission block; at least one transmission block includes a first transmission block and a second transmission block, and the index number of the combination of the coding scheme and the modulation scheme of the first transmission block and the index number of the combination of the coding scheme and the modulation scheme of the second transmission block are both less than a first threshold value.
  • the frequency domain density of at least one port is determined based on a data transmission scheme.
  • the data transmission scheme is determined based on a frequency domain density of at least one port.
  • modules in FIG. 4 or FIG. 5 may also be referred to as units, for example, the processing module may be referred to as a processing unit.
  • the names of the modules may not be the names shown in the figure, for example, the sending module or the receiving module may also be referred to as a communication module.
  • FIG. 4 or FIG. 5 are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the methods of various embodiments of the present disclosure.
  • the storage medium for storing computer software products includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.
  • the embodiment of the present disclosure provides a schematic diagram of the structure of a communication device.
  • the communication device 60 includes: a processor 602, a communication interface 603 and a bus 604.
  • the communication device 60 may also include a memory 601.
  • the processor 602 may be a device that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction 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.
  • the processor 602 may be a device that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure.
  • the processor 602 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication interface 603 is used to connect with other devices through a communication network.
  • the communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.
  • the memory 601 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • disk storage medium or other magnetic storage device or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory 601 may exist independently of the processor 602, and the memory 601 may be connected to the processor 602 via a bus 604 to store instructions or program codes.
  • the processor 602 calls and executes the instructions or program codes stored in the memory 601, the method provided by the embodiment of the present disclosure can be implemented.
  • the memory 601 may also be integrated with the processor 602 .
  • the bus 604 may be an extended industry standard architecture (EISA) bus, etc.
  • the bus 604 may be divided into an address bus, a data bus, a control bus, etc.
  • FIG6 only uses one thick line, but does not mean that there is only one bus or one type of bus.
  • the embodiment of the present disclosure also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by computer instructions to instruct the relevant hardware, and 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 or memory of any of the above 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, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above device or apparatus.
  • the above computer-readable storage medium can also include both the internal storage unit of the above device or apparatus and an 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 data that has been output or is to be output.
  • the readable storage medium includes a non-transient computer-readable storage medium.
  • the embodiments of the present disclosure also provide a computer program product, which includes a computer program.
  • the computer program product When the computer program product is run on a computer, the computer is enabled to execute any one of the methods provided in the above embodiments.

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Abstract

提供一种数据接收和发送方法、通信装置及存储介质。该数据接收方法包括：接收第二通信节点发送的第一信令；第一信令用于指示数据传输方案；数据传输方案包括编码方案和/或调制方案；根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。

Description

数据接收和发送方法、通信装置及存储介质
本公开要求于2023年12月01日提交的、申请号为202311655951.8的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及通信技术领域，尤其涉及一种数据接收和发送方法、通信装置及存储介质。
背景技术
无线通信系统广泛应用于人们的日常生活与生产。例如无线通信系统应用于视频传输、语音传输、定位、工业领域的机器与机器的通信，设备到设备的通信以及车联网中的车辆与其它设备的通信。而更多更广泛的应用，也对无线通信技术的数据传输的性能提出了越来越高的要求，例如数据传输的效率、可靠性等。
发明内容
第一方面，本公开实施例提供一种数据接收方法。该数据接收方法包括：
接收第二通信节点发送的第一信令，第一信令用于指示数据传输方案，数据传输方案包括编码方案和/或调制方案；
根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。
第二方面，本公开实施例提供一种数据发送方法。该数据发送方法包括：
向第一通信节点发送第一信令，第一信令用于指示数据传输方案，数据传输方案包括编码方案和/或调制方案；
根据第一信令指示的数据传输方案，向第一通信节点发送数据。
第三方面，本公开实施例提供一种通信装置。该通信装置包括：第一接收模块和第二接收模块；
第一接收模块，用于接收第二通信节点发送的第一信令，第一信令用于指示数据传输方案，数据传输方案包括编码方案和/或调制方案；
第二接收模块，用于根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。
第四方面，本公开实施例提供另一种通信装置。该通信装置包括：第一发送模块和第二发送模块；
第一发送模块，用于向第一通信节点发送第一信令，第一信令用于指示数据传输方案，数据传输方案包括编码方案和/或调制方案；
第二发送模块，用于根据第一信令指示的数据传输方案，向第一通信节点发送数据。
第五方面，本公开实施例还提供一种通信装置。该通信装置包括：存储器和处理器；存储器和处理器耦合；存储器用于存储处理器可执行的指令；处理器执行指令时执行根据第一方面或第二方面提供的任一方法。
第六方面，本公开实施例提供一种包含计算机指令的计算机程序产品，当该计算机指令在计算机上运行时，使得计算机执行根据第一方面或第二方面中所提供的任一方法。
附图说明
附图用来提供对本公开技术方案的进一步理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。
图1为根据一些实施例的一种通信系统的架构示意图。
图2为根据一些实施例的一种数据接收方法的流程示意图。
图3为根据一些实施例的一种数据发送方法的流程示意图。
图4为根据一些实施例的一种通信装置的组成示意图。
图5为根据一些实施例的另一种通信装置的组成示意图。
图6为根据一些实施例的一种通信装置的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：仅A、仅B以及A和B。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“第一”、“第二”等表述并不对数量和执行次序进行限定，并且“第一”、“第二”等表述也并不限定一定不同。
需要说明的是，本公开中，“示例性地”或者“例如”等表述用于表示作例子、例证或说明。本公开中被描述为“示例性地”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性地”或者“例如”等表述旨在以详细方式呈现相关概念。
在无线通信技术中，例如长期演进(long term evolution，LTE)技术、新空口(New Radio，NR)技术等，均采用正交频分复用(orthogonal frequency division multiplexing，OFDM)技术进行多载波调制，可以有效对抗频率选择性衰落，克服信号符号间干扰(inter-symbol interference，ISI)，进而实现高速数据传输。在OFDM技术中，最小的频域单元为子载波，最小的时域单元为OFDM符号。为了方便使用频域资源，定义了资源块(resource block，RB)，一个资源块包括特定数目的连续子载波。还定义了带宽(bandwidth part，BWP)，一个带宽包括一个载波上有一特定数目的连续资源块。此外，为了方便使用时域资源，还定义了时隙(slot)，一个时隙包括特定数目的连续OFDM符号。
目前，对于无线通信技术的数据传输的性能提出了越来越高的要求，例如数据传输的效率、可靠性等。在无线通信系统中，发送端可以将传输信道的比特块映射到物理信道的比特块，并将物理信道的比特块调制成复数值符号块，从而通过天线端口传输复数值符号块的符号。相应地，接收端接收数据。
示例性地，传输信道的比特块映射到物理信道的比特块，物理信道的比特块调制成复数值符号块，进而复数值符号块中的符号映射到一个或多个层上，产生一个层的符号块或多个层的符号块。层是指多天线空分复用中的层，用于传输数据，不同层上的符号通过不同的天线端口传输。传输信道的比特块，可以由传输信道的一个或多个比特构成，例如传输信道的比特块就是传输信道的比特串。物理信道的比特块，由物理信道的一个或多个比特构成，例如物理信道的比特块就是物理信道的比特串。调制后的符号块由一个或多个符号构成，例如符号串。层的符号块由一个或多个符号(例如符号串)构成。
传输信道的一个比特块在传输中也称为一个传输块。不同的传输块可能来自不同的传输任务，不同的传输任务具有不同的传输服务质量要求，因此，不同的传输块可能对应不同的传输服务质量要求。在使用多天线以空分复用方式传输数据中，可以使用一个层或多个层传输数据，以提高数据传输的效率。不同层的信道状态不同，例如在各层上接收到的信号的能量不同，各层所受到的干扰不同，各层的信道质量不同；各层的信道状态在频域上的变化不同，各层的信道状态在时域上的变化不同。
但是，目前指示数据传输策略的方法使得数据传输策略与各层的信道状态通常不相匹配，如此，会导致数据传输的性能降低，例如数据传输的效率降低，或者数据传输的正确率降低。因此，如何设计数据传输的 方法，以使传输策略适配无线信道状态，提高数据传输的性能，是一些技术中亟待解决的问题。
有鉴于此，本公开提供一种数据接收方法，该方法包括：第一通信节点接收第二通信节点发送的第一信令，第一信令用于指示数据传输方案；数据传输方案包括编码方案和/或调制方案，根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。如此，可以使得传输数据采用的数据传输方案更加适配于信道状态，进而提升通信系统的数据传输性能。
本公开实施例提供的方法可以应用于各种通信系统，例如该通信系统可以为长期演进系统、5G通信系统、Wi-Fi系统、第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的通信系统、未来演进的通信系统(如：第六代(6G)通信系统等)、或多种系统融合的系统等，不予限制。下面以图1所示通信系统100为例，对本公开实施例提供的方法进行描述。图1仅为示意图，并不构成对本公开提供的技术方案的适用场景的限定。
图1为本公开实施例提供的一种通信系统的架构示意图。如图1所示，通信系统100可以包括一个或多个第一通信节点11和一个或多个第二通信节点12。第二通信节点12可以与一个或多个第一通信节点11通信连接。
在一些实施例中，在通信系统100中，第一通信节点与第二通信节点通过无线信道进行通信。例如，第一通信节点为终端设备，第二通信节点为网络设备，网络设备与终端设备之间通过无线信道进行通信。又例如，第一通信节点为终端设备，第二通信节点为无线路由器，无线路由器与终端设备通过无线信道进行通信。
网络设备可以用于实现终端设备的资源调度、无线资源管理、无线接入控制等功能。例如，可以是演进型基站(evolution nodeB，eNB)、下一代基站(generation nodeB，gNB)、收发点(transmission receive point，TRP)、传输点(transmission point，TP)以及某种其它接入节点。根据所提供的服务覆盖区域的大小，基站又可分为用于提供宏蜂窝(Macro cell)的宏基站、用于提供微蜂窝(Pico cell)的微基站和用于提供毫微微蜂窝(Femto cell)的毫微微基站。随着无线通信技术的不断演进，未来的基站也可以采用其他的名称。
终端设备也可以称为终端、用户设备(user equipment，UE)、移动台、移动终端等。示例性地，终端设备可以是手机、平板电脑、带无线收发功能的电脑、虚拟现实终端、增强现实终端、工业控制中的无线终端、无人驾驶中的无线终端、远程手术中的无线终端、运输安全中的无线终端、智慧城市中的无线终端、智慧家庭中的无线终端等等。本公开的实施例对终端所采用的设备形态不做限定。
示例性地，第一通信节点为第一基站，第二通信节点为第二基站，第一基站与第二基站通过无线信道进行通信。又例如，第一通信节点为第一终端，第二通信节点为第二终端，第一终端与第二终端通过无线信道进行通信。又例如，第一通信节点为中继器，第二通信节点为基站，基站与中继器通过无线信道进行通信。又例如，第一通信节点为终端，第二通信节点为中继器，中继器与终端通过无线信道进行通信。又例如，第一通信节点为第一中继器，第二通信节点为第二中继器，第一中继器与第二中继器通过无线信道进行通信。又例如，第一通信节点为基站，第二通信节点为卫星，卫星与基站通过无线信道进行通信。又例如，第一通信节点为卫星，第二通信节点为基站，基站与卫星通过无线信道进行通信。又例如，第一通信节点为终端，第二通信节点为卫星，卫星与终端通过无线信道进行通信。又例如，第一通信节点为卫星，第二通信节点为终端，终端与卫星通过无线信道进行通信。又例如，第一通信节点为地面设备，第二通信节点为飞行器，飞行器与地面设备通过无线信道进行通信。又例如，第一通信节点为第一飞行器，第二通信节点为第二飞行器，第一飞行器与第二飞行器通过无线信道进行通信。
在通信过程中，以第一通信节点向第二通信节点发送数据为例，第二通信节点接收到第一通信节点发 送的数据，从而，第一通信节点可称为发送端。相应地，第二通信节点可称为接收端。或者，第二通信节点向第一通信节点发送数据，第一通信节点可称为接收端。相应地，第二通信节点可称为发送端。
需要说明的是，图1仅为示例性框架图，图1中包括的设备或节点的数量，各个设备的名称不受限制，且除图1所示功能节点外，通信系统还可以包括其他节点或设备(如核心网设备)。
本公开的实施例描述的系统架构以及业务场景是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开的实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开的实施例提供的技术方案对于类似的技术问题，同样适用。
下面结合说明书附图，对本公开提供的实施例进行介绍。
如图2所示，本公开提供一种数据接收方法，该方法应用于第一节点，该方法包括以下步骤：
S101、接收第二通信节点发送的第一信令，第一信令用于指示第一数据传输方案。
第一数据传输方案包括编码方案和/或调制方案。
编码方案可以包括编码的方法、编码的码率等编码的相关信息。在一种示例中，在固定编码的码率的情况下，该编码方案包括编码的方法。在另一种示例中，在固定编码的方法的情况下，该编码方案包括编码的码率。在又一种示例中，编码方案既包括编码的方法，又包括编码的码率。
编码的方法包括卷积码(Convolutional Code)、迭代译码(Turbo Code)、低密度奇偶校验码(low density parity check，LDPC)、极化码(Polar)等。编码的码率可以包括：表示出编码前的比特数与编码后的比特数的比值、在编码后的比特数为固定值的情况下表示出编码前的比特数、在编码前的比特数为固定值的情况下表示出编码后的比特数等表示方式。
调制方案可以用于将数字信息转换为适合在有线/无线系统中两点之间传输的模拟形式，例如将多个比特映射成一个复数值符号。调制方案可以包括二进制相移键控(binary phase shift keying，BPSK)调制、正交相移键控(quadrature phase shift keying，QPSK)调制、8移相键控(Phase Shift Keying，PSK)调制、16正交幅度(quadrature amplitude modulation，QAM)调制、32QAM调制、64QAM调制、128QAM调制、256QAM调制、512QAM调制、1024QAM调制、2048QAM调制等。
在一些实施例中，第一信令指示第一数据传输方案，包括：第一信令分别指示出用于传输数据的传输信道的编码方案和物理信道的调制方案，或者，第一信令指示出编码方案与调制方案的组合。
在一些实施例中，第一信令可以显式地指示出第一数据传输方案。或者，第一信令也可以隐式地指示出第一数据传输方案。在一种示例中，第一信令可以显式地指示编码方案或指示调制方案。或者，第一信令可以显式地指示编码方案与调制方案的组合。在又一种示例中，第一信令可以隐式地指示编码方案或指示调制方案。或者，第一信令可以隐式地指示编码方案与调制方案的组合。
一种隐式指示数据传输方案的方式可以包括：第一信令指示与所传输的数据相关联的参考信号的端口，通过与所传输的数据相关联的解调参考信号的端口指示数据传输方案。例如，第一信令指示与所传输的数据相关联的参考信号的端口序号，以端口序号指示与端口序号相关联的数据传输方案。例如参考信号的端口序号预先与数据传输方案关联，或建立映射关系，不同的端口序号对应不同的数据传输方案，或者各端口序号分别对应一个数据传输方案。又例如，参考信号的端口划分为不同的组，各端口组分别对应一个数据传输方案。
另一种隐式指示数据传输方案的方式可以包括：第一信令指示数据的传输频带，以频带的位置指示数据传输方案。例如以频带的启始位置指示数据传输方案，即以频带中最低频的位置指示数据传输方案。又例如以频带中最高频的位置指示数据传输方案。通过以数据传输的频带的位置指示数据传输方案，可以选择 一个合适的频域位置，使得该频域位置处的信道状态适合对应的传输方案以传输数据，即使得数据传输方案匹配数据的传输频带的频域位置的信道状态。
在一些实施例中，上述第一信令还可以用于指示数据关联的参考信号的至少一个端口。该数据即为第二通信节点向第一通信节点发送的数据，也即第一通信节点根据第一信令指示的第一数据传输方案接收的数据。
本公开中提供的参考信号包括多种类型的参考信号，例如可以是信道状态信息参考信号、解调参考信号(demodulation reference signal，DMRS)、相位跟踪参考信号(phase tracking reference signal，PTRS)、探测参考信号(sounding reference signal，SRS)等。
在一些实施例中，第一信令还至少具有以下几种实现方式：
实现方式1、第一信令用于指示数据传输方案以及数据关联的参考信号的至少一个端口，数据传输方案包括对于各个端口所关联数据的数据传输方案。
示例性地，第一信令指示的数据传输方案可以包括至少一个第一数据传输方案。每个第一数据传输方案分别对应一个端口所关联的数据。也即，第一信令用于指示数据传输方案，包括：第一信令分别指示各个端口所关联数据的数据传输方案。
在一种示例中，第一信令指示的数据关联的参考信号的端口包括端口p1和端口p2，从而第一信令指示数据传输方案可以包括：第一信令指示端口p1所关联数据的数据传输方案和端口p2所关联数据的数据传输方案。也即，第一信令为端口p1所关联数据指示一个数据传输方案，并且还为端口p2所关联数据指示另一个数据传输方案。
进而，第一信令指示端口p1所关联数据的数据传输方案可以与端口p1承载的参考信号所经历的信道状态相匹配，也即端口p1所关联数据的数据传输方案可与端口p1所关联的数据所经历的信道状态相匹配。类似地，第一信令指示端口p2所关联数据的数据传输方案可以与端口p2承载的参考信号所经历的信道状态相匹配，也即端口p2所关联数据的数据传输方案可与端口p2所关联的数据所经历的信道状态相匹配。进而，端口p1所关联数据的数据传输方案与端口p1所关联数据的所在层的无线信道的信道状态相匹配。端口p2所关联数据的数据传输方案与端口p2所关联数据所在层的无线信道的信道状态相匹配。
在另一种示例中，第一信令指示的数据关联的参考信号的端口包括端口p1、端口p2以及端口p3。第一层上的数据关联的参考信号的端口为端口p1，第二层上的数据关联的参考信号的端口为端口p2，第三层上的数据关联的参考信号的端口为端口p3。进而基于端口p1、端口p2、端口p3，第一信令可以分别指示第一层上的数据传输方案、第二层上的数据传输方案、第三层上的数据传输方案。
在一些示例中，第一信令指示的数据关联的参考信号的端口可以包括4个端口，第一信令指示数据传输方案可以包括第一信令分别为这4个端口中的各个端口所关联数据指示数据传输方案。
应理解，上述仅为第一信令指示的数据关联的参考信号的端口的示例性描述，数据关联的参考信号的端口还可以具有其他的实现方式，本公开对此不作限定。
需要说明的是，上述数据与数据关联的参考信号可以位于空分复用中相同的层，并且所经历的信道状态相同。参考信号的端口用于承载该参考信号。数据传输方案包括对于各个端口所关联数据的数据传输方案，也即第一信令基于数据关联的参考信号的端口来指示数据传输方案，可以理解为第一信令基于空分复用中的层指示数据传输方案，从而数据传输方案与用于传输数据的无线信道的信道状态相匹配，从而可以提高数据传输的性能。
实现方式2、第一信令用于指示数据传输方案，并且，第一信令还用于指示第一信号。
第一信号用于为接收数据关联的参考信号提供参考，数据传输方案中的编码方案属于第一编码方案集合。此外，第一编码方案集合基于第一信号从至少一个编码方案集合中确定。
在一些实施例中，第一信号的信道特征与参考信号的信道特征相同，信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
示例性地，以参考信号为解调参考信号为例，第一信号可以理解为该解调参考信号所参考的信道状态信息参考信号。例如，为了便于第一通信节点接收解调参考信号，第一信令可以指示出与解调参考信号的发射或接收具有相同的信道特征的信道状态信息参考信号，以便于第一通信节点参照接收信道状态信息参考信号的相关信息，来接收对应的解调参考信号。该解调参考信号可以与信道状态信息参考信号具有相同的时延展宽、平均多谱勒频率、多谱勒频率展宽、多普勒频率等信道特征的至少一项。
在一些实施例中，第一编码方案集合基于第一信号的类型从至少一个编码方案集合中确定。
在一些实施例中，第一信号的类型可以包括周期信号、非周期信号或者半持续信号，从而第二通信节点可以基于第一信号的类型从多个候选的编码方案集合中确定出该第一编码方案集合。进而，可以从第一编码方案集合中选择出编码方案，也即第一信令从第一编码方案集合中指示出编码方案。如此，可以使得数据传输方案中的编码方案更加适配信道状态，提升传输效率。
示例性地，同样以上述参考信号为解调参考信号为例，第一信号为该解调参考信号所参考的信道状态信息参考信号。解调参考信号所参考的信道状态信息参考信号的类型可以为周期信道状态信息参考信号、非周期信道状态信息参考信号或者半持续信道状态信息参考信号。相应地，不同类型的信道状态信息参考信号的传输特征不同，携带的信道状态信息的特征也可以不同。从而，可以根据解调参考信号所参考的信道状态信号的类型从多个候选的编码方案集合中确定第一编码方案集合。
如此，从第一编码方案选择出的编码方案可以更加匹配传输数据的无线信道的信道状态。例如，周期信道状态信息参考信号关联编码方案集合1，非周期信道状态信息参考信号关联编码方案集合2，半持续信道状态信息参考信号关联编码方案集合3。第一编码方案集合根据解调参考信号所参考的信道状态信息参考信号的类型从候选的编码方案集合中确定。
实现方式3、第一信令用于指示数据传输方案，且第一信令还用于指示用于传输数据的频带，数据传输方案包括对于频带中各个频域单元所传输数据的数据传输方案。也即，第一信令用于指示数据传输方案，包括：第一信令分别指示频带的各个频域单元所传输数据的数据传输方案。
第一信令可以用于指示用于传输数据的频带，由于用于传输数据的频带由多个频域单元组成，第一信令可以按照频带上的频域单元指示数据传输方案，即第一信令指示出频带上各频域单元分别对应的数据传输方案。
示例性地，第一信令指示的数据传输方案可以包括至少一个第二数据传输方案。每个第二数据传输方案对应一个频域单元所传输数据。
在一种示例中，传输数据的频带包括频域单元1、频域单元2。从而第一信令指示数据传输方案可以包括：第一信令指示频域单元1所传输数据对应的数据传输方案以及频域单元2所传输数据对应的数据传输方案。
在另一种示例中，传输数据的频带包括频域单元1、频域单元2、频域单元3以及频域单元4。从而第一信令指示数据传输方案可以包括：第一信令指示频域单元1所传输数据对应的数据传输方案、频域单元2所传输数据对应的数据传输方案、频域单元3所传输数据对应的数据传输方案以及频域单元4所传输数据对应的数据传输方案。
应理解，上述仅为第一信令指示用于传输数据的频带的示例性描述，用于传输数据的频带还可以具有其他可能的实现方式，本公开对此不作限定。
需要说明的是，第一信令指示用于传输数据的频带且第一信令按照频带上的频域单元指示数据传输方案。也即第一信令按照频带上的频域单元指示出各频域单元分别对应的数据传输方案，从而可以使得各个频域单元对应数据的数据传输方案适配各频域单元的无线信道的信道状态，以提升数据传输的性能。
实现方式4、第一信令用于指示数据传输方案，以及第一信令还用于指示用于传输数据的天线面板；也即，第一信令用于指示数据传输方案，包括：第一信令分别指示各个天线面板所发射数据的数据传输方案。
示例性地，第一信令指示的数据传输方案可以包括至少一个第三数据传输方案。每个第三数据传输方案对应一个天线面板所传输数据。或者，每个天线面板所传输数据对应多个第三数据传输方案。
在一种示例中，传输数据的天线面板包括天线面板1、天线面板2。从而第一信令指示数据传输方案可以包括：第一信令指示天线面板1所传输数据对应的数据传输方案以及天线面板2所传输数据对应的数据传输方案。
在另一种示例中，传输数据的天线面板包括天线面板1、天线面板2、天线面板3以及天线面板4。从而第一信令指示数据传输方案可以包括：第一信令指示天线面板1所传输数据对应的数据传输方案、天线面板2所传输数据对应的数据传输方案、天线面板3所传输数据对应的数据传输方案以及天线面板4所传输数据对应的数据传输方案。
需要说明的是，第一信令指示用于传输数据的天线面板且第一信令按照天线面板指示传输数据传输方案。也即第一信令按天线面板指示出天线面板分别对应的数据传输方案，从而使各天线面板对应的数据传输方案适配各天线面板的无线信道的信道状态，以提升数据传输的性能。
实现方式5、第一信令用于指示数据传输方案，且第一信令还用于指示至少一个第二信号，第二信号对应数据关联的参考信号的至少一个端口组，第二信号用于为对应的端口组提供基于共同信道特征的参考；也即第一信令用于指示数据传输方案，包括：第一信令分别指示各个第二信号对应的端口组所关联数据的数据传输方案。
上述共同的信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
第二信号可以理解为为参考信号提供参考的信号，例如基于共同的信道特征提供参考。以参考信号为解调参考信号为例，第二信号可以为该解调参考信号提供参考，例如上述为接收解调参考信号提供参考的信道状态信息参考信号。
示例性地，第一信令指示的数据传输方案可以包括至少一个第四数据传输方案。每个第四数据传输方案对应一个端口组所关联的数据。
在一种示例中，第一信令指示为参考信号提供参考的第二信号为第二信号1和第二信号2。并且，以第二信号1为参考的参考信号的端口组为端口组1，第一信令还可以指示端口组1所关联数据的数据传输方案。以第二信号2为参考的参考信号的端口组为端口组2，第一信令还可以指示端口组2所关联数据的数据传输方案。
在另一种示例中，第一信令指示为参考信号提供参考的第二信号为第二信号1、第二信号2、第二信号3以及第二信号2。并且，以第二信号1为参考的参考信号的端口组为端口组1，第一信令还可以指示端口组1所关联数据的数据传输方案。以第二信号2为参考的参考信号的端口组为端口组2，第一信令还可以指示端口组2所关联数据的数据传输方案。以第二信号3为参考的参考信号的端口组为端口组3，第一信令还可以指示端口组3所关联数据的数据传输方案。以第二信号4为参考的参考信号的端口组为端口组4，第一 信令还可以指示端口组4所关联数据的数据传输方案。
需要说明的是，第一信令基于用于提供参考的第二信号指示参考信号的端口组，并按照第二信号指示出参考信号的端口组所关联数据传输方案。各端口组的信道状态与其对应的端口组所参考的第二信号的信道状态相同，不同端口组的信道状态不同。从而各端口组所关联数据传输方案可以与其对应的端口组的信道状态相匹配，从而可以提高数据传输的性能。
实现方式6、第一信令用于指示数据传输方案，且第一信令还用于指示用于传输数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口，数据传输方案包括对于各个传输块所传输数据的数据传输方案。也即，第一信令用于指示数据传输方案，包括：第一信令分别指示各个传输块所传输数据的数据传输方案。
在一种实现方式中，相同传输块关联的解调参考信号的端口位于相同的码分复用组，不同传输块关联的解调参考信号的端口位于不同的码分复用组。
示例性地，上述至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组。第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
在一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1和端口2，且与传输块2相关联的参考信号的端口为端口3和端口4。端口1与端口2位于码分复用组1，端口3与端口4位于码分复用组2，码分复用组1与码分复用组2不同。
应理解，两个或多个端口位于同一码分复用组，即两个或多个端口位于相同的一组时频资源上，端口之间通过不同的码序列相区别，也即这两个或多个端口以码分复用的方式位于相同的一组时频资源上。两个端口位于不同的码分复用组，即两个端口位于不同的时频资源组上。
在另一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1、端口2、端口3以及端口4，且与传输块2相关联的参考信号的端口为端口5、端口6、端口7以及端口8。端口1、端口2、端口3以及端口4位于码分复用组1，端口5、端口6、端口7以及端口8位于码分复用组2，码分复用组1与码分复用组2不同。
需要说明的是，由于同一码分复用组上的时频资源上的信道状态相同，所以位于相同的码分复用组上的端口的信道状态变化相同。而不同的码分复用组上时频资源上的信道状态不同，所以位于不同的码分复用组上的端口的信道状态变化不同。第一信令分别为各传输块指示数据传输方案，并为相同传输块指示位于相同码分复用组的参考信号的端口，为不同的传输块指示位于不同码分复用组的参考信号的端口。如此，可以使得各传输块的数据传输方案与对应参考信号端口的解调参考信号所经历的信道状态相适配，即各传输块的数据传输方案与各传输块所经历的信道状态相适配，从而可以提高数据传输的性能。
在另一种实现方式中，相同传输块关联的解调参考信号的端口位于相同时域单元，不同传输块关联的解调参考信号的端口位于不同的时域单元。
示例性地，上述至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二时域单元。
在一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输 块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1和端口2，且与传输块2相关联的参考信号的端口为端口3和端口4。端口1与端口2位于时域单元1，端口3与端口4位于时域单元2，时域单元1与时域单元2不同。
在另一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1、端口2、端口3以及端口4，且与传输块2相关联的参考信号的端口为端口5、端口6、端口7以及端口8。端口1、端口2、端口3以及端口4位于时域单元1，端口5、端口6、端口7以及端口8位于时域单元2，时域单元1与时域单元2不同。
需要说明的是，由于同一时域单元上的时频资源上的信道状态相同，所以位于相同的时域单元上的端口的信道状态变化相同。而不同的时域单元上时频资源上的信道状态不同，所以位于不同的时域单元上的端口的信道状态变化不同。第一信令分别为各传输块所传输数据指示数据传输方案，并为相同传输块指示位于相同时域单元的解调参考信号的端口，为不同的传输块指示位于不同时域单元的解调参考信号的端口。如此，可以使得各传输块对应的数据传输方案与对应参考信号端口的参考信号所经历的信道状态相适配，即各传输块的传输方案与各传输块所经历的信道状态相适配，从而可以提高数据传输的性能。
在又一种实现方式中，相同传输块关联的解调参考信号的端口位于相同频域单元，不同传输块关联的解调参考信号的端口位于不同的频域单元。
示例性地，上述至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一频域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二频域单元。
在一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1和端口2，且与传输块2相关联的参考信号的端口为端口3和端口4。端口1与端口2位于频域单元1，端口3与端口4位于频域单元2，频域单元1与频域单元2不同。
在另一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1、端口2、端口3以及端口4，且与传输块2相关联的参考信号的端口为端口5、端口6、端口7以及端口8。端口1、端口2、端口3以及端口4位于频域单元1，端口5、端口6、端口7以及端口8位于频域单元2，频域单元1与频域单元2不同。
需要说明的是，由于同一频域单元上的时频资源上的信道状态相同，所以位于相同的频域单元上的端口的信道状态变化相同。而不同的频域单元上时频资源上的信道状态不同，所以位于不同的频域单元上的端口的信道状态变化不同。第一信令分别为各传输块所传输数据指示数据传输方案，并为相同传输块指示位于相同频域单元的参考信号的端口，为不同的传输块指示位于不同频域单元的参考信号的端口。如此，可以使得各传输块的数据传输方案与对应解调参考信号端口的解调参考信号所经历的信道状态相适配，即各传输块的数据传输方案与各传输块所经历的信道状态相适配，从而可以提高数据传输的性能。
实现方式7、第一信令还用于指示用于传输数据的至少一个传输块，分别为各个传输块指示所传输数据关联的参考信号的至少一个端口，及对应端口的频域密度；第一信令指示数据传输方案包括，第一信令分别为各个传输块指示所传输数据的数据传输方案。
在一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1和端口2，且与传输块2相关联的参考信号的端口为端口3和端口4。端口1与端口2的频域密度为r1，端口3与端口4的频域密度为r2。
在另一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1、端口2、端口3以及端口4，且与传输块2相关联的参考信号的端口为端口5、端口6、端口7以及端口8。端口1、端口2、端口3以及端口4的频域密度为r1，端口5、端口6、端口7以及端口8的频域密度为r2。
需要说明的是，由于同频域密率的端口的信道状态变化相同，而不同的频域密度的端口的信道状态不同，第一信令分别为各传输块指示数据传输方案，并为相同传输块指示具有相同频域密度的解调参考信号的端口，为不同的传输块指示具有不同频域密度的解调参考信号的端口。如此，可以使得各传输块的数据传输方案与对应解调参考信号端口的解调参考信号所经历的信道状态相适配，即各传输块的数据传输方案与各传输块所经历的信道状态相适配。
实现方式8、第一信令用于指示数据传输方案，且第一信令还用于指示用于传输数据的至少一个传输块，分别为各个传输块指示所传输数据关联的参考信号的至少一个端口及对应端口的传输功率；第一信令指示数据传输方案包括，第一信令分别为各个传输块指示所传输数据的数据传输方案。
在一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1和端口2，且与传输块2相关联的参考信号的端口为端口3和端口4。端口1与端口2的传输功率为p1，端口3与端口4的传输功率为p2。
在另一种示例中，第一信令指示的用于传输数据的传输块的数量为2个，包括传输块1和传输块2。传输块1所传输数据的数据传输方案为数据传输方案1，传输块2所传输数据的数据传输方案为数据传输方案2。此外，与传输块1相关联的参考信号的端口为端口1、端口2、端口3以及端口4，且与传输块2相关联的参考信号的端口为端口5、端口6、端口7以及端口8。端口1、端口2、端口3以及端口4的传输功率为p1，端口5、端口6、端口7以及端口8的传输功率为p2。
需要说明的是，由于相同传输功率的端口的信道状态变化相同，而不同的传输功率的端口的信道状态不同。第一信令分别为各传输块所传输数据指示数据传输方案，并为相同传输块指示具有相同传输功率的参考信号的端口，为不同的传输块指示具有不同传输功率的参考信号的端口。如此，可以使得各传输块的数据传输方案与对应参考信号端口的参考信号所经历的信道状态相适配，即各传输块的数据传输方案与各传输块所经历的信道状态相适配。
在一些实施例中，至少一个端口的频域密度基于数据传输方案确定。
示例性地，第一信令用于指示数据传输方案以及数据关联的参考信号的至少一个端口。进而，可以基于数据传输方案，确定至少一个端口的频域密度。需要说明的是，端口的不同频域密度可以用于表示对信道估计的不同精确程度，端口的频域密度越大，可达到的信道估计的精确程度越高，相应地，端口的频域密度越小，可达到的信道估计的精确程度越低。也即，不同数据关联端口的数据传输方案的频域密度不同。从而，第一信令指示数据传输方案，即可进一步基于数据传输方案确定端口的频域密度。
例如，数据的候选传输方案1所关联端口的频域密度为频域密度1、数据的候选传输方案2所关联端口 的频域密度为频域密度2、……、数据的候选传输方案K所关联端口的频域密度为频域密度K。频域密度i与频域密度j可能相同，也可能不同。
需要说明的是，相关联的解调参考信号的端口的频域密度根据数据传输方案确定，从而可以使得对信道估计的精确程度与数据传输方案相适配，从而提高数据传输的性能。
在一些实施例中，数据传输方案基于至少一个端口的频域密度确定。
第一信令通过隐式的方式指示数据传输方案。
示例性地，第一信令指示与所传输的数据相关联的参考信号的端口，以及指示端口的频域密度。也即，数据传输方案通过隐性的方式指示，例如，数据传输方案根据与所传输的数据相关联的参考信号的端口的频域密度确定。需要说明的是，端口的不同频域密度可以用于表示对信道估计的不同精确程度，端口的频域密度越大，可达到的信道估计的精确程度越高，相应地，端口的频域密度越小，可达到的信道估计的精确程度越低。也即，不同数据关联端口的数据传输方案的频域密度不同。从而，第一信令指示端口的频域密度，就可根据端口的频域密度确定端口所关联的数据传输方案。
例如，端口的频域密度1关联数据的传输方案1、端口的频域密度2关联数据的传输方案2、……、端口的频域密度K关联数据的传输方案K。传输方案i与传输方案j可能相同，也可能不同。
需要说明的是，数据传输方案根据相关联的解调参考信号的端口的频域密度确定，从而可以使得对信道估计的精确程度与数据的传输方案相适配，从而提高数据传输的性能。
在一些实施例中，各个传输块所传输数据的数据传输方案包括传输块的编码方案与调制方案的组合的索引号。至少一个传输块包括第一传输块和第二传输块，第一传输块的编码方案与调制方案的组合的索引号和第二传输块的编码方案与调制方案的组合的索引号均小于第一门限值。
示例性地，第一信令可以指示出第一传输块的编码方案与调制方案的组合的索引号与第二传输块的编码方案与调制方案的组合的索引号，并且第二传输块的组合的索引号与第一传输块的组合的索引号小于第一门限值。
应理解，编码方案与调制方案的组合的索引号值代表了数据传输速率的大小。需要说明的是，由于第一传输块所经历的信道状态与第二传输块所经历的信道状态具有一定的相关性，因此第一传输块的数据传输方案与第二传输块的数据传输方案具有一定的相关性。第二传输块的组合的索引号与第一传输块的组合的索引号小于第一门限值，可以使两个传输块的数据传输方案与两个传输块所经历的信道状态相匹配，从而提高数据传输的性能。
在一些实施例中，数据传输方案是第二通信节点基于信道状态确定的。进而，第二通信节点可以通过控制信息信令(也即第一信令)通知第一通信节点该数据传输方案，以进行数据传输。例如第二通信节点为基站发射信道状态信息参考信号，第一通信节点终端测量信道状态信息参考信号以获得信道状态信息，终端向基站报告信道状态信息，基站基于所接收到的信道状态信息制定数据传输方案，基站按照所制定的数据传输方案发射数据，并以控制信息信令(也即第一信令)通知所制定的数据传输方案，终端根据所接收的数据传输方案接收基站所传输的数据。又例如，终端发射上行参考信号，基站测量上行参考信号以获得信道状态信息，根据所获得的信道状态信息制定数据传输方案，基站以控制信息信令通知所制定的数据传输方案，终端根据所接收到的数据传输方案向基站发射数据，基站根据数据传输方案接收终端的数据。
S102、根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。
示例性地，第一通信节点可以基于与第二通信节点发送的数据关联的参考信号接收该数据。以该参考信号为解调参考信号为例，在一种示例中，第一通信节点可以通过该解调参考信号获取数据传输的无线信 道系数，在基于获取到的无线信道系数接收第二通信节点发送的数据。可以根据无线信道系数对第二通信节点发送的数据进行解调。在另一种示例中，可以参照该解调参考信号对数据进行解调，解调参考信号的端口是发射解调参考信号的天线端口在无线传输资源上的映射，例如在时频域资源上的映射，又例如在时频码域资源上的映射。由于解调参考信号的端口用以承载解调参考信号，从而与所传输的数据相关联的解调参考信号的端口用以承载与所传输的数据相关联的解调参考信号。
基于本公开提供的技术方案，第一通信节点可以基于第二通信节点提供的数据传输方案进行数据传输，该数据传输方案可以基于信道状态配置，以使得数据传输方案与传输数据的信道状态相匹配，从而第二通信节点基于该数据传输方案进行数据传输，可以提升数据传输的性能包括数据传输的效率、数据传输的正确率等。
在一些实施例中，如图3所示，本公开还提供一种数据发送方法，该方法应用与第二通信节点，该方法包括以下步骤：
S201、向第一通信节点发送第一信令，第一信令用于指示数据传输方案。
数据传输方案包括编码方案和/或调制方案。
在一些实施例中，第一信令还用于指示数据关联的参考信号的至少一个端口。
在一些实施例中，第一信令用于指示数据传输方案，包括：第一信令分别指示各个端口所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示第一信号，第一信号用于为接收数据关联的参考信号提供参考，编码方案属于第一编码方案集合；第一编码方案集合基于第一信号从至少一个编码方案集合中确定。
在一些实施例中，第一信号的信道特征与参考信号的信道特征相同，信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
在一些实施例中，第一信令还用于指示用于传输数据的频带；第一信令用于指示数据传输方案，包括：第一信令分别指示频带的各个频域单元所传输数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的天线面板；第一信令用于指示数据传输方案，包括：第一信令分别指示各个天线面板所发射数据的数据传输方案。
在一些实施例中，第一信令还用于指示至少一个第二信号，第二信号对应数据关联的参考信号的至少一个端口组，第二信号用于为对应的端口组提供基于共同的信道特征的参考；第一信令用于指示数据传输方案，包括：第一信令分别指示各个第二信号对应的端口组所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口；第一信令用于指示数据传输方案，包括：第一信令分别指示各个传输块所传输数据的数据传输方案。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组；第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二时域单元。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一频域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二频域单元。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的频域密 度。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的传输功率。
在一些实施例中，各个传输块所传输数据的数据传输方案包括传输块的编码方案与调制方案的组合的索引号；至少一个传输块包括第一传输块和第二传输块，第一传输块的编码方案与调制方案的组合的索引号和第二传输块的编码方案与调制方案的组合的索引号均小于第一门限值。
在一些实施例中，至少一个端口的频域密度基于数据传输方案确定。
在一些实施例中，数据传输方案基于至少一个端口的频域密度确定。
S202、根据第一信令指示的数据传输方案，向第一通信节点发送数据。
此外，关于S201至S202的详细描述还可以参照上述S101至S102的相关描述，此处不再赘述。
上述主要从各个通信节点之间交互的角度对本公开提供的方案进行了介绍。可以理解的是，各个节点，例如装置或设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
本公开实施例可以根据上述方法实施例对通信装置进行功能模块的划分，例如，可以对应每一个功能划分每一个功能模块，也可以将两个或两个以上的功能集成在一个功能模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件的形式实现。需要说明的是，本公开实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面以采用对应每一个功能划分每一个功能模块为例进行说明。
图4所示为本公开实施例提供的一种通信装置的组成示意图。如图4所示，该通信装置40包括第一接收模块401以及第二接收模块402。
第一接收模块401，用于接收第二通信节点发送的第一信令。第一信令用于指示数据传输方案，数据传输方案包括编码方案和/或调制方案。
第二接收模块402，用于根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。
在一些实施例中，第一信令还用于指示数据关联的参考信号的至少一个端口。
在一些实施例中，第一信令用于指示数据传输方案，包括：第一信令分别指示各个端口所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示第一信号，第一信号用于为接收数据关联的参考信号提供参考，编码方案属于第一编码方案集合；第一编码方案集合基于第一信号从至少一个编码方案集合中确定。
在一些实施例中，第一信号的信道特征与参考信号的信道特征相同，信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
在一些实施例中，第一信令还用于指示用于传输数据的频带；第一信令用于指示数据传输方案，包括：第一信令分别指示频带的各个频域单元所传输数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的天线面板；第一信令用于指示数据传输方案，包括：第一信令分别指示各个天线面板所发射数据的数据传输方案。
在一些实施例中，第一信令还用于指示至少一个第二信号，第二信号对应数据关联的参考信号的至少 一个端口组，第二信号用于为对应的端口组提供基于共同的信道特征的参考；第一信令用于指示数据传输方案，包括：第一信令分别指示各个第二信号对应的端口组所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口；第一信令用于指示数据传输方案，包括：第一信令分别指示各个传输块所传输数据的数据传输方案。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组；第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二时域单元。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一频域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二频域单元。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的频域密度。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的传输功率。
在一些实施例中，各个传输块所传输数据的数据传输方案包括传输块的编码方案与调制方案的组合的索引号；至少一个传输块包括第一传输块和第二传输块，第一传输块的编码方案与调制方案的组合的索引号和第二传输块的编码方案与调制方案的组合的索引号均小于第一门限值。
在一些实施例中，至少一个端口的频域密度基于数据传输方案确定。
在一些实施例中，数据传输方案基于至少一个端口的频域密度确定。
有关上述第一接收模块401以及第二接收模块402更详细的描述、以及各技术特征更详细的描述，以及有益效果的描述等，均可以参考上述相应的方法实施例部分，此处不再赘述。
图5所示为本公开实施例提供的一种通信装置的组成示意图。如图5所示，该通信装置50包括第一发送模块501以及第二发送模块502。
第一发送模块501，用于向第一通信节点发送第一信令；第一信令用于指示数据传输方案。数据传输方案包括编码方案和/或调制方案。
第二发送模块502，用于根据第一信令指示的数据传输方案，接收第二通信节点发送的数据。
在一些实施例中，第一信令还用于指示数据关联的参考信号的至少一个端口。
在一些实施例中，第一信令用于指示数据传输方案，包括：第一信令分别指示各个端口所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示第一信号，第一信号用于为接收数据关联的参考信号提供参考，编码方案属于第一编码方案集合；第一编码方案集合基于第一信号从至少一个编码方案集合中确定。
在一些实施例中，第一信号的信道特征与参考信号的信道特征相同，信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
在一些实施例中，第一信令还用于指示用于传输数据的频带；第一信令用于指示数据传输方案，包括：第一信令分别指示频带的各个频域单元所传输数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的天线面板；第一信令用于指示数据传输方案，包 括：第一信令分别指示各个天线面板所发射数据的数据传输方案。
在一些实施例中，第一信令还用于指示至少一个第二信号，第二信号对应数据关联的参考信号的至少一个端口组，第二信号用于为对应的端口组提供基于共同的信道特征的参考；第一信令用于指示数据传输方案，包括：第一信令分别指示各个第二信号对应的端口组所关联数据的数据传输方案。
在一些实施例中，第一信令还用于指示用于传输数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口；第一信令用于指示数据传输方案，包括：第一信令分别指示各个传输块所传输数据的数据传输方案。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组；第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二时域单元。
在一些实施例中，至少一个传输块包括第一传输块和第二传输块，第一传输块所传输数据关联的参考信号的端口均承载于第一频域单元；第二传输块所传输数据关联的参考信号的端口均承载于第二频域单元。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的频域密度。
在一些实施例中，第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的传输功率。
在一些实施例中，各个传输块所传输数据的数据传输方案包括传输块的编码方案与调制方案的组合的索引号；至少一个传输块包括第一传输块和第二传输块，第一传输块的编码方案与调制方案的组合的索引号和第二传输块的编码方案与调制方案的组合的索引号均小于第一门限值。
在一些实施例中，至少一个端口的频域密度基于数据传输方案确定。
在一些实施例中，数据传输方案基于至少一个端口的频域密度确定。
有关上述第一发送模块501以及第二发送模块502更详细的描述、以及各技术特征更详细的描述，以及有益效果的描述等，均可以参考上述相应的方法实施例部分，此处不再赘述。
需要说明的是，图4或图5中的模块也可以称为单元，例如，处理模块可以称为处理单元。另外，在图4或图5所示的实施例中，各个模块的名称也可以不是图中所示的名称，例如，发送模块或接收模块也可以称为通信模块。
图4或图5中的各个单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例方法的全部或部分步骤。存储计算机软件产品的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在采用硬件的形式实现上述集成的模块的功能的情况下，本公开实施例提供一种通信装置的结构示意图。如图6所示，该通信装置60包括：处理器602、通信接口603以及总线604。在一些实施例中，通信装置60还可以包括存储器601。
处理器602，可以是实现或执行结合本公开内容所描述的各种示例性的逻辑方框，模块和电路。该处理器602可以是中央处理器，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器602可以实现或执行结合本公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器602也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等。
通信接口603，用于与其他设备通过通信网络连接。该通信网络可以是以太网，无线接入网，无线局域网(wireless local area networks，WLAN)等。
存储器601，可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。
作为一种实现方式，存储器601可以独立于处理器602存在，存储器601可以通过总线604与处理器602相连接，用于存储指令或者程序代码。处理器602调用并执行存储器601中存储的指令或程序代码时，能够实现本公开的实施例提供的方法。
另一种实现方式中，存储器601也可以和处理器602集成在一起。
总线604，可以是扩展工业标准结构(extended industry standard architecture，EISA)总线等。总线604可以分为地址总线、数据总线、控制总线等。为便于表示，图6中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备或装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
本公开实施例还提供一种计算机可读存储介质。上述方法实施例中的全部或者部分流程可以由计算机指令来指示相关的硬件完成，该程序可存储于上述计算机可读存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。计算机可读存储介质可以是前述任一实施例的或内存。上述计算机可读存储介质也可以是上述设备或装置的外部存储设备，例如上述设备或装置上配备的插接式硬盘，智能存储卡(smart media card，SMC)，安全数字(secure digital，SD)卡，闪存卡(flash card)等。进一步地，上述计算机可读存储介质还可以既包括上述设备或装置的内部存储单元也包括外部存储设备。上述计算机可读存储介质用于存储上述计算机程序以及上述设备或装置所需的其他程序和数据。上述计算机可读存储介质还可以用于暂时地存储已经输出或者将要输出的数据。所述可读存储介质，包括非暂态计算机可读存储介质。
本公开实施例还提供一种计算机程序产品，该计算机产品包含计算机程序，当该计算机程序产品在计算机上运行时，使得该计算机执行上述实施例中所提供的任一方法。
尽管在此结合各实施例对本公开进行了描述，然而，在实施所要求保护的本公开过程中，本领域技术人员通过查看附图、公开内容、以及所附权利要求书，可理解并实现公开实施例的其他变化。在权利要求中，“包括”(Comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合详细特征及其实施例对本公开进行了描述，显而易见的，在不脱离本公开的精神和范围的情 况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本公开的示例性说明，且视为已覆盖本公开范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何在本公开揭露的技术范围内的变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应该以权利要求的保护范围为准。

Claims (30)

  1. 一种数据接收方法，其中，所述方法应用于第一通信节点，并且包括：
    接收第二通信节点发送的第一信令；所述第一信令用于指示数据传输方案；所述数据传输方案包括编码方案和/或调制方案；
    根据所述第一信令指示的数据传输方案，接收所述第二通信节点发送的数据。
  2. 根据权利要求1所述的方法，其中，所述第一信令还用于指示所述数据关联的参考信号的至少一个端口。
  3. 根据权利要求2所述的方法，其中，所述第一信令用于指示数据传输方案，包括：所述第一信令分别指示各个端口所关联数据的数据传输方案。
  4. 根据权利要求1所述的方法，其中，所述第一信令还用于指示第一信号，所述第一信号用于为接收所述数据关联的参考信号提供参考，所述编码方案属于第一编码方案集合；其中，所述第一编码方案集合基于所述第一信号从至少一个编码方案集合中确定。
  5. 根据权利要求4所述的方法，其中，所述第一信号的信道特征与所述参考信号的信道特征相同，所述信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
  6. 根据权利要求1所述的方法，其中，所述第一信令还用于指示用于传输所述数据的频带；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示所述频带的各个频域单元所传输数据的数据传输方案。
  7. 根据权利要求1所述的方法，其中，所述第一信令还用于指示用于传输所述数据的天线面板；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个所述天线面板所发射数据的数据传输方案。
  8. 根据权利要求1所述的方法，其中，所述第一信令还用于指示至少一个第二信号，所述第二信号对应所述数据关联的参考信号的至少一个端口组，所述第二信号用于为对应的端口组提供基于共同的信道特征的参考；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个所述第二信号对应的端口组所关联数据的数据传输方案。
  9. 根据权利要求1所述的方法，其中，所述第一信令还用于指示用于传输所述数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个所述传输块所传输数据的数据传输方案。
  10. 根据权利要求9所述的方法，其中，所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组；所述第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
  11. 根据权利要求9所述的方法，其中，所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；所述第二传输块所传输数据关联的参考信号的端口均承载于第二时域单元。
  12. 根据权利要求9所述的方法，其中，所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块所传输数据关联的参考信号的端口均承载于第一频域单元；所述第二传输块所传输数据关联的参考信号的端口均承载于第二频域单元。
  13. 根据权利要求9所述的方法，其中，所述第一信令还用于分别为各个传输块指示所传输数据关联的参考信号的端口的频域密度。
  14. 根据权利要求9所述的方法，其中，所述第一信令还用于分别为各个传输块指示所传输数据关联 的参考信号的端口的传输功率。
  15. 根据权利要求9所述的方法，其中，所述各个所述传输块所传输数据的数据传输方案包括所述传输块的编码方案与调制方案的组合的索引号；所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块的编码方案与调制方案的组合的索引号和所述第二传输块的编码方案与调制方案的组合的索引号均小于第一门限值。
  16. 根据权利要求2所述的方法，其中，所述至少一个端口的频域密度基于所述数据传输方案确定。
  17. 根据权利要求2所述的方法，其中，所述数据传输方案基于所述至少一个端口的频域密度确定。
  18. 一种数据发送方法，其中，所述方法应用于第二通信节点，并且包括：
    向第一通信节点发送第一信令；所述第一信令用于指示数据传输方案；所述数据传输方案包括编码方案和/或调制方案；
    根据所述第一信令指示的数据传输方案，向所述第一通信节点发送数据。
  19. 根据权利要求18所述的方法，其中，所述第一信令还用于指示所述数据关联的参考信号的至少一个端口。
  20. 根据权利要求19所述的方法，其中，所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个端口所关联数据的数据传输方案。
  21. 根据权利要求18所述的方法，其中，所述第一信令还用于指示第一信号，所述第一信号用于为接收所述数据关联的参考信号提供参考，所述编码方案属于第一编码方案集合；其中，所述第一编码方案集合基于所述第一信号从至少一个编码方案集合中确定。
  22. 根据权利要求21所述的方法，其中，所述第一信号的信道特征与所述参考信号的信道特征相同，所述信道特征包括以下至少一项：平均时延、时延展宽、多普勒频率、多普勒频率展宽。
  23. 根据权利要求21所述的方法，其中，所述第一信令还用于指示用于传输所述数据的频带；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示所述频带的各个频域单元所传输数据的数据传输方案。
  24. 根据权利要求21所述的方法，其中，所述第一信令还用于指示用于传输所述数据的天线面板；所述第一信令用于指示数据传输方案，包括：所述第一信令分别指示各个所述天线面板所发射数据的数据传输方案。
  25. 根据权利要求21所述的方法，其中，所述第一信令还用于指示至少一个第二信号，所述第二信号对应所述数据关联的参考信号的至少一个端口组，所述第二信号用于为对应的端口组提供基于共同的信道特征的参考；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个所述第二信号对应的端口组所关联数据的数据传输方案。
  26. 根据权利要求21所述的方法，其中，所述第一信令还用于指示用于传输所述数据的至少一个传输块以及各个传输块所传输数据关联的参考信号的至少一个端口；所述第一信令用于指示所述数据传输方案，包括：所述第一信令分别指示各个所述传输块所传输数据的数据传输方案。
  27. 根据权利要求26所述的方法，其中，所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块所传输数据关联的参考信号的端口均承载于第一码分复用组；所述第二传输块所传输数据关联的参考信号的端口均承载于第二码分复用组。
  28. 根据权利要求26所述的方法，其中，所述至少一个传输块包括第一传输块和第二传输块，所述第一传输块所传输数据关联的参考信号的端口均承载于第一时域单元；所述第二传输块所传输数据关联的参 考信号的端口均承载于第二时域单元。
  29. 一种通信装置，包括：存储器和处理器；所述存储器和所述处理器耦合；所述存储器用于存储所述处理器可执行的指令；所述处理器执行所述指令时执行根据权利要求1至28中任一项所述的方法。
  30. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机指令，当所述计算机指令在通信装置上运行时，使得所述通信装置执行根据权利要求1至28中任一项所述的方法。
PCT/CN2024/118052 2023-12-01 2024-09-10 数据接收和发送方法、通信装置及存储介质 Pending WO2025112792A1 (zh)

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