WO2025251987A1 - Procédé et appareil de transmission, et dispositif - Google Patents

Procédé et appareil de transmission, et dispositif

Info

Publication number
WO2025251987A1
WO2025251987A1 PCT/CN2025/097883 CN2025097883W WO2025251987A1 WO 2025251987 A1 WO2025251987 A1 WO 2025251987A1 CN 2025097883 W CN2025097883 W CN 2025097883W WO 2025251987 A1 WO2025251987 A1 WO 2025251987A1
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WO
WIPO (PCT)
Prior art keywords
information
layer
unit
target
modulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/097883
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English (en)
Chinese (zh)
Inventor
孙布勒
孙鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2025251987A1 publication Critical patent/WO2025251987A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H04L27/00—Modulated-carrier systems

Definitions

  • This application belongs to the field of communication technology, specifically relating to a transmission method, apparatus, and device.
  • the transmitting device when transmitting information, the transmitting device first modulates the codeword information to be transmitted using Quadrature Amplitude Modulation (QAM) or Phase Shift Keying (PSK) modulation, and then performs layer mapping and subsequent processing on the modulated information. Because the codeword information to be transmitted needs to be modulated first, the modulation flexibility is relatively poor.
  • QAM Quadrature Amplitude Modulation
  • PSK Phase Shift Keying
  • This application provides a transmission method, apparatus, and device that can solve the problem of poor modulation flexibility.
  • a transmission method performed by a first device, the method comprising:
  • the first device performs layer mapping processing on the codeword information to obtain information at least one layer.
  • the first device modulates the information of the at least one layer to obtain modulated information
  • the first device obtains first data based on the modulated information
  • the first device sends the first data to the second device.
  • a transmission method performed by a second device, the method comprising:
  • the second device receives the first data sent by the first device
  • the second device performs target processing based on the first data to obtain at least one layer of demodulated information
  • the second device performs layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • a transmission device comprising:
  • the processing module is used to perform layer mapping processing on the codeword information to obtain information of at least one layer;
  • the processing module is also used to: modulate the information of the at least one layer to obtain modulated information;
  • the processing module is also used to: obtain first data based on the modulated information
  • the sending module is used to send the first data to the second device.
  • a transmission device comprising:
  • the receiving module is used to receive the first data sent by the first device
  • the processing module is used to perform target processing based on the first data to obtain at least one layer of demodulated information
  • the processing module is further configured to: perform layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • a transmission device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
  • a first device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.
  • a first device including a processor and a communication interface, wherein,
  • the processor is used to perform layer mapping processing on codeword information to obtain information of at least one layer;
  • the processor is also configured to: modulate the information of the at least one layer to obtain modulated information;
  • the processor is also configured to: obtain first data based on the modulated information
  • a communication interface is used to send the first data to a second device.
  • a second device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.
  • a network-side device including a processor and a communication interface, wherein,
  • a communication interface for receiving first data sent by a first device
  • a processor is configured to perform target processing based on the first data to obtain at least one layer of demodulated information
  • the processor is further configured to: perform layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.
  • a wireless communication system comprising: a first device and a second device, wherein the first device is configured to perform the steps of the method as described in the first aspect, and the second device is configured to perform the steps of the method as described in the second aspect.
  • a chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.
  • a computer program/program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.
  • a first device performs layer mapping processing on codeword information to obtain information of at least one layer; the first device performs modulation processing on the information of the at least one layer to obtain modulated information; the first device obtains first data based on the modulated information; and the first device sends the first data to a second device.
  • the same or different modulation methods can be used for information of different layers. Compared to performing modulation first and then layer mapping, this improves the flexibility of modulation.
  • Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application
  • Figure 2 is a schematic diagram of a neural network in a related technology
  • Figure 3 is a schematic diagram of a neuron in the related technology
  • FIG. 4 is a flowchart of one of the transmission methods provided in an embodiment of this application.
  • FIG. 5 is one of the flowcharts of data transmission provided in the embodiments of this application.
  • Figure 6 is a second flowchart of a data transmission method provided in an embodiment of this application.
  • Figure 7 is a second flowchart of a transmission method provided in an embodiment of this application.
  • Figure 8 is a third flowchart of a data transmission method provided in an embodiment of this application.
  • Figure 9 is a fourth flowchart of a data transmission method provided in an embodiment of this application.
  • Figure 10 is a fifth flowchart of a data transmission method provided in an embodiment of this application.
  • Figure 11 is a schematic diagram of one of the structures of a transmission device provided in an embodiment of this application.
  • Figure 12 is a second schematic diagram of the structure of a transmission device provided in an embodiment of this application.
  • Figure 13 is a schematic diagram of the structure of a communication device provided in an embodiment of this application.
  • Figure 14 is a schematic diagram of the structure of a terminal provided in an embodiment of this application.
  • Figure 15 is one of the structural schematic diagrams of a network-side device provided in an embodiment of this application.
  • Figure 16 is a second schematic diagram of the structure of a network-side device provided in an embodiment of this application.
  • first and second are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by “first” and “second” are generally of the same class, not limited in number; for example, the first object can be one or more.
  • “or” in this application indicates at least one of the connected objects.
  • the scope of protection for "A or B” covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B.
  • the terms “A and/or B,” “at least one of A and B,” and “at least one of A or B” also cover at least the above three scenarios.
  • the character “/” generally indicates that the preceding and following objects are in an "or” relationship.
  • instruction in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction).
  • a direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent.
  • An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application.
  • the wireless communication system includes a terminal 11 and a network-side device 12.
  • Terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc.
  • PDA personal digital assistant
  • UMPC ultra-mobile personal computer
  • MID mobile internet device
  • AR augmented reality
  • VR virtual reality
  • robot wearable device
  • flight vehicle vehicle user equipment
  • VUE shipboard equipment
  • pedestrian user equipment PUE
  • smart home home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines
  • Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment.
  • Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit.
  • Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.
  • WLAN Wireless Local Area Network
  • WiFi Wireless Fidelity
  • a base station may be referred to as a Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit/Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved.
  • the base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.
  • Core network equipment also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), and Unified Data Warehouse (UDM).
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • PCF Policy and Charging Rules Function
  • EASDF Edge Application Server Discovery Function
  • UDM Unified Data Management
  • UDM Unified Data Management
  • UDM Unified Data Warehouse
  • the core network equipment includes: Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF).
  • UDR Data Repository
  • HSS Home Subscriber Server
  • CNC Centralized Network Configuration
  • NEF Network Exposure Function
  • L-NEF Local NEF
  • BSF Binding Support Function
  • AF Application Function
  • LMF Location Management Function
  • GMLC Gateway Mobile Location Centre
  • NWDAF Network Data Analytics Function
  • the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).
  • a platform e.g., a cloud platform
  • AI Artificial intelligence
  • Integrated AI into wireless communication networks to significantly improve technical indicators such as throughput, latency, and user capacity is an important task for future wireless communication networks.
  • AI modules can be implemented in various ways, such as neural networks, decision trees, support vector machines, and Bayesian classifiers. This application uses neural networks as an example for illustration, but it does not limit the specific type of AI module.
  • FIG. 2 A schematic diagram of a neural network is shown in Figure 2:
  • the neural network consists of neurons, as shown in Figure 3.
  • a1, a2, ..., aK are the inputs
  • w is the weight (multiplicative coefficient)
  • b is the bias (additive coefficient)
  • ⁇ (.) is the activation function.
  • Common activation functions include Sigmoid, tanh, rectified linear function, and rectified linear unit (ReLU), etc.
  • Gradient optimization algorithms are a class of algorithms that minimize or maximize an objective function (or, more accurately, a loss function), which is often a mathematical combination of model parameters and data.
  • a neural network model f(.) is constructed. With the model, the predicted output f(x) can be obtained from the input x, and the difference between the predicted value and the true value (f(x) - Y) can be calculated; this is the loss function.
  • Finding suitable values W and b minimizes the value of the loss function; the smaller the loss value, the closer the model is to the reality.
  • BP error back propagation
  • the learning process consists of two parts: forward propagation of the signal and backward propagation of the error.
  • forward propagation the input sample is introduced from the input layer, processed layer by layer by the hidden layers, and then propagated to the output layer. If the actual output of the output layer does not match the expected output, the process transitions to error back propagation.
  • Error back propagation involves propagating the output error back to the input layer through the hidden layers in a certain form, distributing the error to all units in each layer, thus obtaining the error signal of each unit.
  • This error signal serves as the basis for adjusting the weights of each unit.
  • This process of adjusting the weights through forward and backward propagation is cyclical. This continuous adjustment of weights is the learning and training process of the network. This process continues until the error of the network output is reduced to an acceptable level, or until the predetermined number of learning iterations is reached.
  • the AI algorithms and models selected vary depending on the type of problem being solved.
  • the main method for improving 5G network performance using AI is to enhance or replace existing algorithms or processing modules through neural network-based algorithms and AI models.
  • neural network-based algorithms and AI models can achieve better performance than deterministic algorithms.
  • Commonly used neural networks include deep neural networks, convolutional neural networks, and recurrent neural networks.
  • Existing AI tools can be used to build, train, and validate neural networks.
  • AI has demonstrated superior performance compared to traditional methods in complex communication tasks such as wireless environment modeling, signal detection, channel estimation, beamforming, positioning, mobility management, wireless resource allocation, traffic prediction, network state tracking, and intelligent scheduling.
  • 3GPP has already conducted wireless AI standardization research in several projects, including AI/ML for Operation Administration and Maintenance (OAM), AI/ML for Next Generation Radio Access Network (NG-RAN), Enablers for Network Automation for 5G-Phase 3, 5G Systems Support for AI/ML-based Services, and AI/ML for Air Interface. Specific research directions include:
  • AI/ML for OAM primarily studies management data analytics service (MDAS).
  • Enablers for Network Automation for 5G-Phase 3 and 5G Systems Support for AI/ML-based Services are projects that introduce AI into the core network.
  • the main research focuses on AI model sharing, support for federated learning, enhancement of NWDAF, and 5G system assistance for AI/ML models to achieve intelligent transmission and provide transmission assurance.
  • AI/ML for NG-RAN investigated three use cases and a basic functional framework in Release 17: network power saving, load balancing, and mobility optimization. Release 18 primarily focuses on data acquisition and signaling enhancement.
  • AI/ML for Air Interface is a project established in Release 18 for air interface enhancement. Its research focuses on the general architecture of air interface AI, such as cooperation level and lifecycle management, as well as three use cases based on AI: channel state information (CSI) enhancement, beam enhancement, and positioning enhancement.
  • CSI channel state information
  • the transmission method includes the following steps:
  • Step 101 The first device performs layer mapping processing on the codeword information to obtain information of at least one layer.
  • the codeword information can be bitstream information.
  • the codeword information can be bitstream information obtained after processing a transmission block (TB). This processing can include at least one of the following operations: Cyclic Redundancy Check (CRC) addition, channel coding, rate matching, and scrambling.
  • CRC Cyclic Redundancy Check
  • the information in the at least one layer may include one or more layers of information.
  • a layer may also be described as a stream, or a mapping layer, etc.
  • the at least one layer may also be described as at least one layer, at least one stream, or at least one mapping layer, etc.
  • the codeword information may be bitstream information obtained by performing operations such as CRC addition, channel coding, rate matching, and scrambling on a TB transmitted from the Medium Access Control (MAC) layer.
  • operations such as CRC addition, channel coding, rate matching, and scrambling on a TB transmitted from the Medium Access Control (MAC) layer.
  • MAC Medium Access Control
  • the first device performs layer mapping processing on the codeword information to obtain at least one layer of information, which may include: the first device performs layer mapping processing on the codeword information to obtain K layers of information, where K is a positive integer.
  • Step 102 The first device modulates the information of the at least one layer to obtain modulated information.
  • the first device may use at least two modulation methods to modulate the information of the at least one layer to obtain modulated information; or, the first device may use the same modulation method to modulate the information of the at least one layer to obtain modulated information; this application embodiment does not limit this.
  • the modulation method can be used to map the bit sequence corresponding to the information of the at least one layer into a symbol sequence.
  • the modulation method can also be described as a modulation scheme or modulation strategy.
  • the modulation scheme can be a rule that modulates M bits into N symbols.
  • the modulation order can be described by a fraction M/N or an integer array [M, N].
  • N 1, it degenerates into the modulation order used in related technologies.
  • the mapping rule (or described as a specific mapping rule) of the modulation scheme can be implemented through functions, tables, or a second AI unit. This specific mapping rule can be predefined by the protocol, or it can be sent from the network side to the terminal side when the mapping rule is actually invoked; in this case, the standard format of the mapping rule is predefined by the protocol.
  • Y f(X), where X is the bit sequence before modulation with a length of M, and Y is the symbol sequence after modulation (usually a complex number sequence) with a length of N.
  • X the bit sequence before modulation with a length of M
  • Y the symbol sequence after modulation (usually a complex number sequence) with a length of N.
  • y ⁇ sub>i,j ⁇ /sub> is a real number or a complex number.
  • the input to the second AI unit is the bit sequence before modulation or the sequence obtained after preprocessing it.
  • the output of the second AI unit can be directly used as the modulated symbol sequence or after post-processing (such as matching and mapping the real and imaginary parts) as the modulated symbol sequence.
  • Step 103 The first device obtains first data based on the modulated information.
  • the first device may perform resource mapping processing on the modulated information to obtain resource-mapped information; perform OFDM modulation processing on the resource-mapped information to obtain first data; or, the first device may perform resource mapping processing on the modulated information to obtain resource-mapped information; perform De-Modulation Reference Signal (DMRS) processing on the resource-mapped information to obtain DMRS-processed information; perform OFDM modulation processing on the DMRS-processed information to obtain first data; and so on.
  • DMRS De-Modulation Reference Signal
  • This embodiment does not limit the specific implementation of obtaining first data based on the modulated information.
  • Step 104 The first device sends the first data to the second device.
  • the first device can be a transmitter (or described as a transmitter device).
  • the second device can be a receiver (or described as a receiver device).
  • the first data can be downlink data; or, when the first device is a terminal and the second device is a network-side device, the first data can be uplink data.
  • Quadrature Amplitude Modulation QAM
  • PSK Phase Shift Keying
  • AI is used for end-to-end design to jointly optimize the modulation method at the transmitting end and the receiver algorithm at the receiving end, thereby achieving better transmission performance.
  • modulation is performed first at the transmitting end, followed by layer mapping; correspondingly, layer demapping is performed first at the receiving end, followed by demodulation.
  • the information is first layer-mapped at the transmitting end, and then each layer is modulated independently. This supports the use of different modulation methods at different layers, better correlates data processing with channel quality, and, with the help of AI-based signal reception, can achieve higher data throughput.
  • This application improves the data processing flow at the physical layer.
  • Traditional methods modulate the information at the transmitting end before layer mapping, and correspondingly, at the receiving end, demapping is performed before demodulation, as shown in Figure 5.
  • layer mapping is performed at the transmitting end first, and then each layer is modulated separately, as shown in Figure 6.
  • the difference in the transmitting end's processing lies in: performing layer mapping on the scrambled codeword information to convert it into multi-layer or multi-stream data, and modulating each stream separately.
  • Different streams or layers can use different modulation schemes, including modulation schemes with different modulation orders, or modulation schemes with the same modulation order but different mapping relationships, etc.
  • a first device performs layer mapping processing on codeword information to obtain information of at least one layer; the first device performs modulation processing on the information of the at least one layer to obtain modulated information; the first device obtains first data based on the modulated information; and the first device sends the first data to a second device.
  • the same or different modulation methods can be used for information of different layers. Compared to performing modulation first and then layer mapping, this improves the flexibility of modulation.
  • the first device modulates the information of the at least one layer to obtain modulated information, including:
  • the first device uses at least two modulation methods to modulate the information of the at least one layer to obtain modulated information.
  • the at least two modulation methods are different modulation methods, including modulation methods with different modulation orders, or modulation methods with the same modulation order but different mapping relationships, etc.
  • the first device can modulate the information of the at least one layer to obtain modulated information of the at least one layer.
  • the information of the at least one layer includes K layers of information, and the modulated information includes modulated information of the K layers, where K is a positive integer.
  • the first device can modulate the information of each layer in the K layers separately to obtain corresponding modulated information of the K layers.
  • the modulation methods used for the K layers of information can be the same or different.
  • the first device uses at least two modulation methods to modulate the information of the at least one layer to obtain modulated information, thereby supporting the use of at least two modulation methods for modulation processing when transmitting information, which can improve the flexibility of modulation.
  • the information at least one layer includes first information and second information, the first information and the second information are information from different layers, and the first modulation method used to modulate the first information is different from the second modulation method used to modulate the second information.
  • the information at least one layer may include information from multiple layers, and the first information and the second information may be any two layers of information from these multiple layers.
  • the information of at least one layer includes first information and second information.
  • the first information and the second information are information of different layers.
  • the first modulation method used to modulate the first information is different from the second modulation method used to modulate the second information.
  • different modulation methods can be used for different layers, which can better correlate data processing and channel quality. Using different modulation methods to process information of different layers according to the channel characteristics corresponding to different layers can improve the modulation effect.
  • the method further includes at least one of the following:
  • the first device sends capability information to the network-side device
  • the first device receives third information for uplink transmission sent by the network-side device
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the terminal can report capability information to the network-side device to achieve terminal capability reporting.
  • the receiving method can also be described as a signal receiving method, signal receiving scheme, or receiving scheme, etc.
  • the receiving method may include a demodulation method or a first AI unit.
  • the capability information may include indication information for indicating the first AI unit supported by each layer; this indication information may include the identifier of the first AI unit, or the identifier and version of the first AI unit.
  • the demodulation method can also be described as a demodulation scheme or demodulation strategy.
  • network-side devices can send third-party information to the terminal to determine the uplink transmission scheme.
  • the modulation scheme and layer association information can be used to indicate the modulation scheme used by each layer.
  • the modulation scheme and layer association information can be used to indicate the relationship between the modulation scheme and the layer that the terminal needs to use in subsequent data transmission, that is, which layer uses which modulation scheme.
  • the first layer uses modulation scheme 1
  • the second and third layers use modulation scheme 2
  • the fourth layer uses modulation scheme 3.
  • the first device may receive third information for uplink transmission sent by the network-side device, and the first device may modulate the information of the at least one layer based on the third information.
  • the first device can modulate the information of the at least one layer according to the debugging method indicated by the network-side device.
  • the network-side device can indicate the modulation scheme used by each layer of information in the at least one layer through third information, and the first device can perform modulation processing on the at least one layer of information based on the modulation scheme indicated by the third information.
  • the capability information may include at least one of the following:
  • Indication information used to indicate whether the terminal supports different modulation methods for different layers
  • Indication information used to indicate the modulation scheme supported by each layer when the terminal transmits data
  • Indication information used to indicate whether the terminal supports different receiving methods for different layers
  • Indication information used to indicate the reception methods supported by each layer when the terminal is receiving data.
  • the capability information may include indication information for each layer to indicate the modulation schemes supported.
  • This indication information may include the modulation order of each layer's supported modulation schemes.
  • the modulation order of each layer's supported modulation schemes can be represented by a set, a list, or other forms; this embodiment does not limit this.
  • the supported modulation order can be represented by a set of modulation orders.
  • the set of supported modulation orders could be ⁇ [2,1], [3,1], [3,2], [4,1], [4,2], [5,1], [5,2], [5,3] ⁇ , where ⁇ represents a set.
  • the indication information for indicating the modulation schemes supported by each layer may include an identifier or version of the modulation scheme supported by each layer.
  • the identifier or version of the modulation scheme may be represented by a set, a list, or other forms; this embodiment does not limit this.
  • the supported modulation scheme can refer to a supported rule for modulating M bits into N symbols.
  • multiple modulation schemes can be used to support different transmission scenarios at the same modulation order. For example, at the same modulation order, one modulation scheme is used when the terminal speed is below 30 km/h, and another modulation scheme is used when the terminal speed is above 30 km/h.
  • Each modulation scheme in the above set has a unique identifier and can carry a version number. Therefore, the information reported here is the unique identifier and version number of each modulation scheme, rather than the specific mapping rules for that modulation scheme.
  • the first device when the first device is a terminal and the second device is a network-side device, the first device sends capability information to the network-side device, thereby enabling the terminal to report its capabilities to the network-side device, which facilitates the network-side device to schedule the terminal's uplink transmission or downlink reception based on the terminal's capabilities.
  • the first device when the first device is a terminal and the second device is a network-side device, the first device receives third information sent by the network-side device for uplink transmission.
  • the terminal can modulate different layers according to the modulation method and layer association information indicated by the network-side device, and the network-side device can use an adapted demodulation scheme to demodulate, thereby achieving the adaptation between the modulation method of the terminal and the demodulation scheme of the network-side device.
  • the method further includes:
  • the first device receives relevant information about the target modulation scheme sent by the network-side device, and the modulation scheme indicated by the third information includes the target modulation scheme.
  • the relevant information of the target modulation method may include the identifier, version, specific mapping rules (e.g., function, table, or second AI unit) of the target modulation method, and applicable conditions.
  • specific mapping rules e.g., function, table, or second AI unit
  • the first device does not support the target modulation method, which may mean that the first device cannot use the target modulation method.
  • the first device does not have or does not store the specific mapping rules (such as functions, tables or second AI units) for the target modulation method.
  • the terminal can request the specific mapping rules (such as functions, tables, or second AI units) of the target modulation scheme from the network-side device, and the network-side device will send the specific mapping rules of the target modulation scheme to the terminal.
  • the specific mapping rules such as functions, tables, or second AI units
  • the first device after the first device receives the relevant information of the target modulation method sent by the network-side device, it can use the target modulation method for modulation processing.
  • the first device before the first device modulates the information of the at least one layer, the first device receives information related to the target modulation scheme sent by the network-side device, and the first device can use the target modulation scheme to modulate the information of the at least one layer.
  • the first device when the first device does not support the target modulation method, the first device receives relevant information about the target modulation method sent by the network-side device.
  • the modulation method indicated by the third information includes the target modulation method.
  • the terminal when the terminal does not support the target modulation method indicated by the network-side device, it can report to the network-side device that the terminal does not support the target modulation method.
  • the network-side device sends relevant information about the target modulation method to the terminal, enabling the terminal to use the target modulation method for modulation.
  • the method further includes at least one of the following:
  • the first device receives capability information sent by the terminal
  • the first device sends fourth information for downlink transmission to the terminal;
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • network-side devices can send fourth information to the terminal to determine the downlink transmission scheme.
  • the modulation scheme-layer association information can be used to indicate the modulation scheme used by each layer. For example, this information can be used to inform the terminal about the modulation scheme and layer association that the network-side device will use in subsequent data transmission, i.e., which layer uses which modulation scheme. For instance, the first layer might use modulation scheme 1, the second and third layers might use modulation scheme 2, and the fourth layer might use modulation scheme 3.
  • the association information between demodulation methods and layers can be used to indicate the demodulation method adopted by each layer.
  • the association information can indicate the relationship between the demodulation scheme and the layer that the terminal needs to use in subsequent data transmission, i.e., which layer uses which demodulation scheme.
  • the first layer uses demodulation scheme 1
  • the second and third layers use demodulation scheme 2
  • the fourth layer uses demodulation scheme 3.
  • the association information between the first AI unit and the layer can be used to indicate the first AI unit used by each layer for data reception.
  • the association information can indicate the relationship between the first AI unit and the layer that the terminal needs to use in subsequent data transmission, i.e., which layer uses which first AI unit. For instance, the first layer uses first AI unit 1, the second and third layers use first AI unit 2, and the fourth layer uses first AI unit 3.
  • the input description information of the first AI unit can be used to describe what the input information of the first AI unit of each layer is, and the output description information of the first AI unit can be used to describe what the output information of the first AI unit of each layer is.
  • the first device sending the fourth information for downlink transmission to the terminal may be performed before step 101, step 102, step 103 or step 104, or it may be performed after step 101, step 102, step 103 or step 104. This embodiment does not limit this.
  • the fourth information may include modulation scheme and layer association information.
  • the first device can modulate the information of the at least one layer according to the modulation scheme and layer association information indicated by the fourth information.
  • the first device can inform the terminal of the modulation scheme used to modulate the information of the at least one layer through the fourth information, facilitating the terminal to receive the first data using an appropriate demodulation method.
  • the fourth information may include demodulation method and layer association information.
  • the first device can use the fourth information to indicate to the terminal the demodulation method used for demodulation at each layer when receiving the first data, ensuring that the demodulation method used by the terminal is compatible with the modulation method used by the network-side device.
  • the fourth information may include association information between the first AI unit and the layer.
  • the first device can use the fourth information to indicate to the terminal the first AI unit used by each layer when receiving the first data, ensuring that the receiving method used by the terminal is compatible with the modulation method used by the network-side device.
  • the fourth information may include input description information or output description information of the first AI unit, so that the first device can indicate to the terminal the input or output of the first AI unit used in each layer through the fourth information, so that the receiving method adopted by the terminal is adapted to the modulation method adopted by the network side device.
  • the first AI unit can be used to receive the first data and map the symbol sequence corresponding to the first data received by the second device into a bit sequence.
  • the demodulation method can be used to receive the first data and map the equalized symbol sequence corresponding to the first data received by the second device into a bit sequence.
  • the function of the first AI unit can be to convert the symbol sequence received by the second device into a bit sequence.
  • the input of the first AI unit includes at least the received modulated data signal, or it may also include the received demodulation reference signal (DMRS), the original DMRS signal transmitted by the transmitter, or a channel estimate.
  • DMRS received demodulation reference signal
  • the second device can directly use the received modulated data signal, the received DMRS signal, the original DMRS signal transmitted by the first device, or the channel estimate (all of which are complex signals) as input to the first AI unit; that is, it can use complex signals as input to the first AI unit.
  • the first AI unit can extract the real and imaginary parts of the received modulated data signal, the received DMRS signal, the original DMRS signal transmitted by the first device, or the channel estimate and arrange them into specific dimensions (such as vectors, matrices, or tensors) as input to the first AI unit.
  • the output of the first AI unit is a bit sequence corresponding to the received modulated data signal.
  • the first device when the first device is a network-side device and the second device is a terminal, the first device receives the capability information sent by the terminal, thereby enabling the terminal to report its capabilities to the network-side device, which facilitates the network-side device to schedule the terminal's uplink transmission or downlink reception based on the terminal's capabilities.
  • the first device when the first device is a network-side device and the second device is a terminal, the first device sends fourth information for downlink transmission to the terminal, so that the terminal can receive downlink data according to the receiving scheme indicated by the network-side device, thereby achieving the adaptation of the terminal's demodulation scheme to the modulation scheme of the network-side device.
  • the method further includes:
  • the first device sends relevant information about the target demodulation method or the target AI unit to the terminal.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the relevant information of the target AI unit may include its identifier or version, its description or executable file, and applicable conditions.
  • the description or executable file includes information such as the target AI unit's structure, parameters, or applicable AI framework.
  • the terminal can directly run the description or executable file to use the target AI unit for inference. Alternatively, the terminal may need to compile or recompile the description or executable file before using the target AI unit for inference. This embodiment does not limit the specific implementation of using the target AI unit.
  • the relevant information about the target demodulation method may include the target demodulation method's identifier, version, specific demapping rules (such as functions, tables, or third AI units), and applicable conditions.
  • the terminal does not support the target demodulation method or the target AI unit, which may mean that the terminal cannot use the target demodulation method or the target AI unit.
  • the terminal does not exist, has no, or has not stored the target demodulation method or the target AI unit.
  • the terminal can request a demodulation scheme or first AI unit from the network-side device.
  • the network-side device can send the terminal the specific mapping rules of the demodulation scheme (such as functions, tables, or second AI units), or the description or execution file of the first AI unit.
  • the first device when the terminal does not support the target demodulation method or the target AI unit, the first device sends relevant information about the target demodulation method or the target AI unit to the terminal.
  • the terminal when the terminal does not support the receiving scheme indicated by the network-side device, it can report to the network-side device that the terminal does not support the target demodulation method or the target AI unit, so that the network-side device sends relevant information about the target demodulation method or the target AI unit to the terminal, enabling the terminal to use the target demodulation method or the target AI unit to receive downlink data.
  • the modulation method is used to map the bit sequence corresponding to the information of the at least one layer into a symbol sequence.
  • the modulation method in related technologies is a rule that maps M bits into 1 symbol.
  • the modulation method in this application embodiment is a rule that maps a bit sequence into a symbol sequence. For example, M bits are modulated into N symbols, where M is a positive integer and N is a positive integer.
  • the modulation method can be described by a fraction M/N or an integer group [M,N], which makes the application of modulation more extensive.
  • the modulation method is used to map the bit sequence corresponding to the information of the at least one layer into a symbol sequence.
  • the modulation method that maps a bit sequence into a symbol sequence is more flexible.
  • the AI unit described in this application embodiment may also be referred to as an AI model, AI structure, etc., or the AI unit may refer to a processing unit capable of implementing specific algorithms, formulas, processing flows, capabilities, etc. related to AI, or the AI unit may be a processing method, algorithm, function, module, or unit for a specific dataset, or the AI unit may be a processing method, algorithm, function, module, or unit running on AI-related hardware such as a graphics processing unit (GPU), neural network processing unit (NPU), tensor processing unit (TPU), or application-specific integrated circuit (ASIC).
  • GPU graphics processing unit
  • NPU neural network processing unit
  • TPU tensor processing unit
  • ASIC application-specific integrated circuit
  • the specific dataset includes the input or output of the AI unit.
  • the identifier of the AI unit may be an AI model identifier, AI structure identifier, AI algorithm identifier, function ID, physical identifier, logical identifier, global identifier, local identifier, or the identifier of a specific dataset associated with the AI unit, or the identifier of a specific scenario, environment, channel characteristics, or device related to the AI, or the identifier of a function, characteristic, capability, or module related to the AI.
  • This application embodiment does not specifically limit this.
  • This application proposes a scheme for data transmission based on different modulation schemes at different layers. It mainly implements the terminal's reporting of multi-layer modulation and signal reception capabilities, the determination of signaling flows for downlink and uplink multi-layer transmission schemes, and the determination of layered signal processing flows at the transceiver end.
  • this application can better correlate data processing and channel quality, achieving higher data throughput.
  • the transmission method includes the following steps:
  • Step 201 The second device receives the first data sent by the first device
  • Step 202 The second device performs target processing based on the first data to obtain at least one layer of demodulated information
  • Step 203 The second device performs layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • the first data can be a symbol sequence.
  • the demodulated information can be a bit sequence.
  • the second device performs target processing based on the first data to obtain at least one layer of demodulated information, which may include: the second device performs target processing based on the first data to obtain K layers of demodulated information.
  • AI units can be used to implement reception operations at different layers of the receiving end; or, AI units can be omitted to implement reception operations at the receiving end.
  • the second device may or may not use the first AI unit. Taking the use of the first AI unit as an example, the second device performs target processing based on the first data to obtain at least one layer of demodulated information, which may include: the second device performing a first process on the first data to obtain target information; and the second device performing a second process on the target information based on at least one first AI unit to obtain at least one layer of demodulated information.
  • the second device may perform de-resource mapping processing, channel estimation processing, equalization processing, and demodulation processing on the first data to obtain at least one layer of demodulated information.
  • This application does not limit the specific implementation of obtaining at least one layer of demodulated information based on the first data through target processing.
  • the different processing at the receiving end in this embodiment is as follows: the symbol information of each layer after equalization or multiple antenna signal detection is demodulated to obtain the bit information on each layer or each stream, and then layer demapping is performed.
  • Different streams or layers can use different demodulation methods, including demodulation methods with different modulation orders, or demodulation methods with the same modulation order but different mapping relationships, etc.
  • the second device performs target processing based on the first data to obtain at least one layer of demodulated information, including:
  • the second device performs a first process on the first data to obtain target information
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information.
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information.
  • This may include: the second device inputting the at least one layer of equalization-processed information into at least one first AI unit, and the second device obtaining at least one layer of demodulated information based on the output of the at least one first AI unit; or, the second device inputting the at least one layer of channel estimation-processed information into at least one first AI unit, and the second device obtaining at least one layer of demodulated information based on the output of the at least one first AI unit; or, the second device inputting the at least one layer of de-resource mapping-processed information into at least one first AI unit, and the second device obtaining at least one layer of demodulated information based on the output of the at least one first AI unit; etc.
  • This embodiment does not limit this.
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information.
  • the AI unit enables the receiving operation of different layers at the receiving end, and the AI-based signal reception can achieve higher data throughput.
  • the first AI unit is used for any of the following:
  • the input of the first AI unit is associated with the complex signal after equalization of the received data signal, and the output of the first AI unit is a bit sequence corresponding to the data signal.
  • the input of the first AI unit is associated with the received data signal and the channel estimate, and the output of the first AI unit is a bit sequence corresponding to the data signal.
  • the input of the first AI unit is associated with the received data signal, the received DMRS signal and the original DMRS signal sent by the transmitter, and the output of the first AI unit is a bit sequence corresponding to the data signal.
  • the joint processing of channel estimation, equalization and demodulation may include: joint processing of channel estimation, equalization and demodulation when there is no pilot transmission.
  • the input of the first AI unit is associated with the received data signal, and the output of the first AI unit is a bit sequence corresponding to the data signal.
  • the transmitting end only transmits the data signal and does not transmit DMRS.
  • the input of the first AI unit is associated with the received data signal (or the channel estimate, or the received DMRS signal, or the original DMRS signal sent by the transmitter, or the complex signal after equalization of the received data signal).
  • the received data signal or the channel estimate, or the received DMRS signal, or the original DMRS signal sent by the transmitter, or the complex signal after equalization of the received data signal
  • the received data signal is directly used as the input of the first AI unit; or, it can mean that the received data signal (or the channel estimate, or the received DMRS signal, or the original DMRS signal sent by the transmitter, or the complex signal after equalization of the received data signal) is processed and used as the input of the first AI unit.
  • the real and imaginary parts of the received data signal are extracted and arranged into specific dimensions (such as vectors, matrices, or tensors) and used as the input of the first AI unit.
  • the generalization ability of the first AI unit varies depending on the function it performs.
  • the generalization performance gradually decreases from the AI unit implementing demodulation processing, to the AI unit implementing joint equalization and demodulation processing, and finally to the AI unit implementing joint channel estimation, equalization, and demodulation processing. Therefore, even if the transmitting end uses the same modulation scheme to send data, different receiving ends can use different first AI units to receive data and obtain the bit sequence. For example, terminals with frequently changing activity scenarios can use the first AI unit implementing demodulation processing, while terminals with less changing activity scenarios can use the first AI unit implementing joint channel estimation, equalization, and demodulation processing for pilotless transmission. Even if the transmitting end uses the same modulation scheme, different receiving ends can configure and use different first AI units.
  • the target information includes information processed by at least one layer of equalization.
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information, including:
  • the second device inputs the information processed by the at least one layer of equalization into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains at least one layer of demodulated information based on the output of the at least one first AI unit;
  • the first AI unit is used for demodulation processing.
  • the second device performs a first process on the first data to obtain target information.
  • the target information includes information after at least one layer of equalization processing.
  • the first process may include de-resource mapping processing, channel estimation processing, and equalization processing.
  • the target information may include the information after equalization processing of the K layer.
  • the information after equalization processing may include symbol information after equalization or multiple antenna signal detection; or information after preprocessing the symbol information; and so on.
  • the preprocessing may involve extracting the real and imaginary parts of the symbol information and arranging them into specific dimensions (such as vectors, matrices, or tensors).
  • the demodulated information can be the output of the first AI unit, or information obtained after post-processing the output of the first AI unit.
  • Post-processing can refer to adjusting the dimensions of the output of the first AI unit; for example, if the output of the first AI unit is a matrix, it can be adjusted into a vector according to a preset rule.
  • the second device obtaining demodulated information for at least one layer based on the output of the at least one first AI unit may include: the second device obtaining demodulated information for K layers based on the outputs of K first AI units in a one-to-one correspondence, with each layer having a corresponding first AI unit.
  • the receiver can use a first AI unit to implement the demodulation function, as shown in Figure 8.
  • the different processing at the receiving end in this embodiment is as follows: the symbol information of each layer after equalization or multiple antenna signal detection is directly input into the first AI unit, or preprocessed and then input into the first AI unit respectively.
  • the output of the first AI unit is directly used as the bit information of each layer or stream, or the output of the first AI unit is post-processed and then used as the bit information of each layer or stream, followed by layer demapping.
  • Different streams or layers can use different first AI units.
  • the preprocessing may involve extracting the real and imaginary parts of the symbol information of each layer and arranging them into specific dimensions (such as vectors, matrices, or tensors) as input to the first AI unit.
  • the postprocessing may refer to adjusting the dimensions of the output of the first AI unit. For example, if the output of the first AI unit is a matrix, it is adjusted into a vector according to a preset rule.
  • the second device inputs the information after the at least one layer of equalization processing into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains the demodulated information of at least one layer based on the output of the at least one first AI unit. In this way, demodulation processing during data reception is realized through AI units, and higher data throughput can be achieved based on AI-based signal reception.
  • the target information includes information processed by at least one layer of channel estimation.
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information, including:
  • the second device inputs the information processed by the at least one layer of channel estimation into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains at least one layer of demodulated information based on the output of the at least one first AI unit;
  • the first AI unit is used for joint processing of equalization and demodulation.
  • the second device performs a first process on the first data to obtain target information.
  • the target information includes information after at least one layer of channel estimation processing.
  • the first process may include de-resource mapping processing and channel estimation processing.
  • the target information may include the information after channel estimation processing of the K layer.
  • the information after channel estimation processing may include the received data signal (i.e., service data signal other than the reference signal (such as DMRS)) and the channel estimation result; or, the information after preprocessing the data signal and the channel estimation result; and so on.
  • the preprocessing may involve extracting the real and imaginary parts of the data signal and the channel estimation result and arranging them into specific dimensions (such as vectors, matrices, or tensors).
  • the demodulated information can be the output of the first AI unit, or information obtained after post-processing the output of the first AI unit.
  • Post-processing can refer to adjusting the dimensions of the output of the first AI unit; for example, if the output of the first AI unit is a matrix, it can be adjusted into a vector according to a preset rule.
  • the second device obtaining demodulated information for at least one layer based on the output of the at least one first AI unit may include: the second device obtaining demodulated information for K layers based on the outputs of K first AI units in a one-to-one correspondence, with each layer having a corresponding first AI unit.
  • the receiver can use a first AI unit to implement equalization and demodulation functions, as shown in Figure 9.
  • the different processing at the receiving end in this embodiment is as follows: the received data signal (i.e., service data signal other than the reference signal (such as DMRS)) and the channel estimation result are directly input into the first AI unit, or preprocessed and then input into the first AI unit respectively.
  • the output of the first AI unit is directly used as bit information on each layer or stream, or post-processed and then used as bit information on each layer or stream, followed by layer demapping.
  • Different streams or layers can use different first AI units.
  • the preprocessing may involve extracting the real and imaginary parts of the data signal and the channel estimation result and arranging them into specific dimensions (such as vectors, matrices, or tensors) as inputs to the first AI unit.
  • the post-processing may refer to adjusting the dimensions of the output of the first AI unit. For example, if the output of the first AI unit is a matrix, it is adjusted into a vector according to a preset rule.
  • the second device inputs the information after the at least one layer of channel estimation processing into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains the demodulated information of at least one layer based on the output of the at least one first AI unit.
  • the AI unit realizes the joint processing of equalization and demodulation during data reception. Based on AI signal reception, higher data throughput can be achieved.
  • the target information includes information after at least one layer of de-resource mapping processing
  • the second device performs a second processing on the target information based on at least one first AI unit to obtain at least one layer of demodulated information, including:
  • the second device inputs the information processed by the at least one layer of de-resource mapping into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains at least one layer of demodulated information based on the output of the at least one first AI unit;
  • the first AI unit is used for joint processing of channel estimation, equalization, and demodulation.
  • the second device performs a first process on the first data to obtain target information, the target information including information after at least one layer of de-resource mapping processing, and the first process may include de-resource mapping processing.
  • the target information may include the information after de-resource mapping processing of layer K.
  • the information after the de-resource mapping process may include the received data signal, reference signal, and the original DMRS signal from the transmitting end; or, information after preprocessing the data signal, reference signal, and original DMRS signal; and so on.
  • the preprocessing may involve extracting the real and imaginary parts of the data signal, reference signal, and original DMRS signal and arranging them into specific dimensions (such as vectors, matrices, or tensors).
  • the demodulated information can be the output of the first AI unit, or information obtained after post-processing the output of the first AI unit.
  • Post-processing can refer to adjusting the dimensions of the output of the first AI unit; for example, if the output of the first AI unit is a matrix, it can be adjusted into a vector according to a preset rule.
  • the second device obtaining demodulated information for at least one layer based on the output of the at least one first AI unit may include: the second device obtaining demodulated information for K layers based on the outputs of K first AI units in a one-to-one correspondence, with each layer having a corresponding first AI unit.
  • the receiver can use the first AI unit to implement channel estimation, equalization and demodulation functions, and the insertion of DMRS at the transmitter is optional, as shown in Figure 10.
  • the different processing at the receiving end in this embodiment is as follows: the received data signal, reference signal, and original DMRS signal from the transmitting end are directly input into the first AI unit, or preprocessed and then input into the first AI unit respectively.
  • the output of the first AI unit is directly used as bit information on each layer or stream, or post-processed and then used as bit information on each layer or stream, followed by layer demapping.
  • Different streams or layers can use different first AI units.
  • the preprocessing may involve extracting the real and imaginary parts of the data signal, reference signal, and original DMRS signal and arranging them into specific dimensions (such as vectors, matrices, or tensors) as inputs to the first AI unit.
  • the post-processing may refer to adjusting the dimensions of the output of the first AI unit; for example, if the output of the first AI unit is a matrix, it is adjusted into a vector according to a preset rule.
  • the second device inputs the information after the at least one layer of de-resource mapping processing into at least one first AI unit in a one-to-one correspondence.
  • the second device obtains the demodulated information of at least one layer based on the output of the at least one first AI unit.
  • the AI unit realizes the joint processing of channel estimation, equalization and demodulation during data reception. AI-based signal reception can achieve higher data throughput.
  • the method further includes at least one of the following:
  • the second device sends capability information to the network-side device
  • the second device receives fourth information for downlink transmission sent by the network-side device
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • the method further includes:
  • the second device receives relevant information about the target demodulation method or the target AI unit sent by the network-side device.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the method further includes at least one of the following:
  • the second device receives capability information sent by the terminal
  • the second device sends third information for uplink transmission to the terminal;
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the method further includes:
  • the second device sends relevant information about the target modulation method to the terminal, and the modulation method indicated by the third information includes the target modulation method.
  • this embodiment is an implementation of the second device corresponding to the embodiment shown in FIG4. Some of its implementation methods can be referred to the relevant descriptions of the embodiment shown in FIG4. To avoid repeated descriptions, this embodiment will not be repeated.
  • the transmission method provided in this application can be executed by a transmission device.
  • This application uses an example of a transmission device executing the transmission method to illustrate the transmission device provided in this application.
  • the transmission device may be a communication device or a component within a communication device, such as a chip.
  • the communication device may be a terminal, a network-side device, or a server, etc.
  • the terminal may include, but is not limited to, the type of terminal 11 listed above
  • the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.
  • the transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware.
  • the processing module can be implemented by a processor.
  • the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc.
  • the receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.
  • the transmission device 300 when the transmission device is a terminal or a component within a terminal, the transmission device 300 includes:
  • Processing module 301 is used to perform layer mapping processing on codeword information to obtain information of at least one layer;
  • the processing module 301 is further configured to: perform modulation processing on the information of the at least one layer to obtain modulated information;
  • Processing module 301 is further configured to: obtain first data based on the modulated information
  • the sending module 302 is used to send the first data to the second device.
  • processing module is specifically used for:
  • the information of the at least one layer is modulated using at least two modulation methods to obtain modulated information.
  • the information at least one layer includes first information and second information, the first information and the second information are information from different layers, and the first modulation method used to modulate the first information is different from the second modulation method used to modulate the second information.
  • the sending module is further configured to: send capability information to the network-side device; or
  • the device further includes:
  • a receiving module is used to receive third information for uplink transmission sent by the network-side device
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the receiving module is further configured to:
  • the third device receives information related to the target modulation scheme sent by the network-side device, wherein the modulation scheme indicated by the third information includes the target modulation scheme.
  • the apparatus when the first device is a network-side device and the second device is a terminal, the apparatus further includes a receiving module for: receiving capability information sent by the terminal;
  • the sending module is further configured to: send fourth information for downlink transmission to the terminal;
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • the sending module is further configured to:
  • the relevant information of the target demodulation method or the target AI unit is sent to the terminal.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the modulation method is used to map the bit sequence corresponding to the information of the at least one layer into a symbol sequence.
  • the transmission device 400 when the transmission device is a network-side device or a component within a network-side device, the transmission device 400 includes:
  • Receiver module 401 is used to receive first data sent by the first device
  • Processing module 402 is used to perform target processing based on the first data to obtain at least one layer of demodulated information
  • the processing module 402 is further configured to: perform layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • processing module is specifically used for:
  • the first data is processed to obtain target information
  • the target information is processed by at least one first AI unit to obtain at least one layer of demodulated information.
  • the first AI unit is used for any of the following:
  • the target information includes information processed by at least one layer of equalization.
  • the processing module is specifically used for:
  • the information after at least one layer of equalization processing is input one-to-one into at least one first AI unit;
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for demodulation processing.
  • the target information includes information processed by at least one layer of channel estimation.
  • the processing module is specifically used for:
  • the information processed by the at least one layer of channel estimation is input into at least one first AI unit in a one-to-one correspondence.
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for joint processing of equalization and demodulation.
  • the target information includes information after at least one layer of de-resource mapping processing
  • the processing module is specifically used for:
  • the information after the at least one layer of de-resource mapping is input one-to-one into at least one first AI unit;
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for joint processing of channel estimation, equalization, and demodulation.
  • the apparatus when the second device is a terminal and the first device is a network-side device, the apparatus further includes a sending module for: sending capability information to the network-side device; or a receiving module for receiving fourth information for downlink transmission sent by the network-side device.
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • the receiving module is further configured to:
  • the second device does not support the target demodulation method or the target AI unit, it receives the relevant information of the target demodulation method or the target AI unit sent by the network-side device.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the apparatus when the second device is a network-side device and the first device is a terminal, the apparatus further includes a receiving module for receiving capability information sent by the terminal;
  • the device may further include a sending module for sending third information for uplink transmission to the terminal;
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the sending module is further configured to:
  • the terminal does not support the target modulation method
  • information related to the target modulation method is sent to the terminal, and the modulation method indicated by the third information includes the target modulation method.
  • the transmission device provided in this application embodiment can implement the various processes implemented in the method embodiments of FIG4 and FIG7 and achieve the same technical effect. To avoid repetition, it will not be described again here.
  • this application embodiment also provides a communication device 500, including a processor 501 and a memory 502.
  • the memory 502 stores programs or instructions that can run on the processor 501.
  • the communication device 500 is a terminal
  • the program or instructions executed by the processor 501 implement the various steps of the above-described transmission method embodiment and achieve the same technical effect.
  • the communication device 500 is a network-side device
  • the program or instructions executed by the processor 501 implement the various steps of the above-described transmission method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.
  • This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiments shown in FIG4 or FIG7.
  • This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect.
  • the terminal may be the transmission device shown in FIG11 or FIG12.
  • FIG14 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.
  • the terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.
  • terminal 600 may also include a power supply (such as a battery) for powering various components.
  • the power supply can be logically connected to processor 610 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.
  • the terminal structure shown in Figure 14 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.
  • the input unit 604 may include a graphics processor 6041 and a microphone 6042.
  • the graphics processor 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode.
  • the display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like.
  • the user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072.
  • the touch panel 6071 is also called a touch screen.
  • the touch panel 6071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.
  • the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device.
  • the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.
  • the memory 609 can be used to store software programs or instructions, as well as various data.
  • the memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data.
  • the first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.).
  • the memory 609 may include volatile memory or non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.
  • Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM).
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • DRRAM direct memory bus RAM
  • the memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.
  • Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.
  • terminal is the first device:
  • Processor 610 is used to perform layer mapping processing on codeword information to obtain information of at least one layer;
  • the processor 610 is further configured to: perform modulation processing on the information of the at least one layer to obtain modulated information;
  • Processor 610 is also configured to: obtain first data based on the modulated information
  • Radio frequency unit 601 is used to send the first data to the second device.
  • processor 610 is specifically used for:
  • the information of the at least one layer is modulated using at least two modulation methods to obtain modulated information.
  • the information at least one layer includes first information and second information, the first information and the second information are information from different layers, and the first modulation method used to modulate the first information is different from the second modulation method used to modulate the second information.
  • the radio frequency unit 601 further includes at least one of the following:
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the radio frequency unit 601 is further configured to:
  • the third device receives information related to the target modulation scheme sent by the network-side device, wherein the modulation scheme indicated by the third information includes the target modulation scheme.
  • the radio frequency unit 601 further includes at least one of the following:
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • the radio frequency unit 601 is further configured to:
  • the relevant information of the target demodulation method or the target AI unit is sent to the terminal.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the modulation method is used to map the bit sequence corresponding to the information of the at least one layer into a symbol sequence.
  • the terminal is a second device
  • the receiving module is used to receive the first data sent by the first device
  • the processing module is used to perform target processing based on the first data to obtain at least one layer of demodulated information
  • the processing module is further configured to: perform layer demapping processing on the demodulated information of the at least one layer to obtain codeword information.
  • processing module is specifically used for:
  • the first data is processed to obtain target information
  • the target information is processed by at least one first AI unit to obtain at least one layer of demodulated information.
  • the first AI unit is used for any of the following:
  • the target information includes information processed by at least one layer of equalization.
  • the processing module is specifically used for:
  • the information after at least one layer of equalization processing is input one-to-one into at least one first AI unit;
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for demodulation processing.
  • the target information includes information processed by at least one layer of channel estimation.
  • the processing module is specifically used for:
  • the information processed by the at least one layer of channel estimation is input into at least one first AI unit in a one-to-one correspondence.
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for joint processing of equalization and demodulation.
  • the target information includes information after at least one layer of de-resource mapping processing
  • the processing module is specifically used for:
  • the information after the at least one layer of de-resource mapping is input one-to-one into at least one first AI unit;
  • At least one layer of demodulated information is obtained based on the output of the at least one first AI unit
  • the first AI unit is used for joint processing of channel estimation, equalization, and demodulation.
  • the apparatus when the second device is a terminal and the first device is a network-side device, the apparatus further includes a sending module for: sending capability information to the network-side device; or a receiving module for receiving fourth information for downlink transmission sent by the network-side device.
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the fourth piece of information includes at least one of the following:
  • Information relating modulation method to layer information relating demodulation method to layer; information relating first AI unit to layer; input description information of first AI unit; output description information of first AI unit;
  • the first AI unit is used to map the symbol sequence corresponding to the first data into a bit sequence
  • the demodulation method is used to map the equalized symbol sequence corresponding to the first data into a bit sequence
  • the receiving module is further configured to:
  • the second device does not support the target demodulation method or the target AI unit, it receives the relevant information of the target demodulation method or the target AI unit sent by the network-side device.
  • the demodulation method indicated by the fourth information includes the target demodulation method, or the first AI unit indicated by the fourth information includes the target AI unit.
  • the apparatus when the second device is a network-side device and the first device is a terminal, the apparatus further includes a receiving module for receiving capability information sent by the terminal;
  • the device may further include a sending module for sending third information for uplink transmission to the terminal;
  • the capability information includes at least one of the following:
  • Indication information used to indicate whether different modulation methods are supported for different layers
  • Indication information used to indicate the modulation schemes supported by each layer
  • Indication information used to indicate whether different receiving methods are supported for different layers
  • Indication information used to indicate the reception methods supported by each layer
  • the third information includes:
  • the sending module is further configured to:
  • the terminal does not support the target modulation method
  • information related to the target modulation method is sent to the terminal, and the modulation method indicated by the third information includes the target modulation method.
  • This application also provides a network-side device, including a processor and a communication interface.
  • the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG7.
  • This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.
  • the network-side device 700 includes: an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704, and a memory 705.
  • the antenna 701 is connected to the radio frequency device 702.
  • the radio frequency device 702 receives information through the antenna 701 and sends the received information to the baseband device 703 for processing.
  • the baseband device 703 processes the information to be transmitted and sends it to the radio frequency device 702.
  • the radio frequency device 702 processes the received information and transmits it through the antenna 701.
  • the method executed by the network-side device in the above embodiments can be implemented in the baseband device 703, which includes a baseband processor.
  • the baseband device 703 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG15.
  • One of the chips is, for example, a baseband processor, which is connected to the memory 705 via a bus interface to call the program in the memory 705 and execute the network device operation shown in the above method embodiment.
  • the network-side device may also include a network interface 706, such as a Common Public Radio Interface (CPRI).
  • CPRI Common Public Radio Interface
  • the network-side device 700 in this application embodiment further includes: instructions or programs stored in memory 705 and executable on processor 704.
  • Processor 704 calls the instructions or programs in memory 705 to execute the methods executed by each module shown in FIG12 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.
  • the network-side device 800 includes: a processor 801, a network interface 802, and a memory 803.
  • the network-side device may be the transmission device shown in FIG12.
  • the network interface 802 is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network-side device 800 in this application embodiment further includes: instructions or programs stored in memory 803 and executable on processor 801.
  • Processor 801 calls the instructions or programs in memory 803 to execute the methods executed by each module shown in FIG12 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.
  • This application also provides a readable storage medium storing a program or instructions.
  • the program or instructions When the program or instructions are executed by a processor, they implement the various processes of the above-described transmission method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.
  • the processor mentioned above is the processor in the terminal or network-side device described in the above embodiments.
  • the readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.
  • ROM computer read-only memory
  • RAM random access memory
  • magnetic disk magnetic disk
  • optical disk optical disk
  • the readable storage medium may be a non-transient readable storage medium.
  • This application embodiment also provides a chip, which includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the various processes of the above-described transmission method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.
  • chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.
  • This application also provides a computer program/program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.
  • This application also provides a wireless communication system, including a first device and a second device.
  • the first device can be used to perform the steps of the transmission method applied to the first device as described above, and the second device can be used to perform the steps of the transmission method applied to the second device as described above.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande divulgue un procédé et un appareil de transmission, et un dispositif, se rapportant au domaine technique des communications. Selon un mode de réalisation de la présente demande, le procédé de transmission comprend les étapes suivantes : un premier dispositif effectue un mappage de couche sur des informations de mot de code afin d'obtenir des informations d'au moins une couche ; le premier dispositif module les informations de l'au moins une couche afin d'obtenir des informations modulées ; le premier dispositif obtient des premières données sur la base des informations modulées ; et, le premier dispositif envoie les premières données à un second dispositif.
PCT/CN2025/097883 2024-06-05 2025-05-29 Procédé et appareil de transmission, et dispositif Pending WO2025251987A1 (fr)

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CN102447522A (zh) * 2010-09-30 2012-05-09 上海贝尔股份有限公司 多层传输的方法和装置
US20130102358A1 (en) * 2011-10-20 2013-04-25 Lsi Corporation Modulation and layer mapping in physical channels
US20230421213A1 (en) * 2022-06-23 2023-12-28 Qualcomm Incorporated Codeword layer mapping for rate-splitting mimo communication
CN117858072A (zh) * 2022-09-30 2024-04-09 维沃移动通信有限公司 信息传输方法、装置及设备

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Publication number Priority date Publication date Assignee Title
US20100202561A1 (en) * 2009-02-11 2010-08-12 Qualcomm Incorporated Method and apparatus for modulation and layer mapping in a wireless communication system
CN102447522A (zh) * 2010-09-30 2012-05-09 上海贝尔股份有限公司 多层传输的方法和装置
US20130102358A1 (en) * 2011-10-20 2013-04-25 Lsi Corporation Modulation and layer mapping in physical channels
US20230421213A1 (en) * 2022-06-23 2023-12-28 Qualcomm Incorporated Codeword layer mapping for rate-splitting mimo communication
CN117858072A (zh) * 2022-09-30 2024-04-09 维沃移动通信有限公司 信息传输方法、装置及设备

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