WO2025200023A1 - Procédé et appareil de communication, et support de stockage - Google Patents

Procédé et appareil de communication, et support de stockage

Info

Publication number
WO2025200023A1
WO2025200023A1 PCT/CN2024/085059 CN2024085059W WO2025200023A1 WO 2025200023 A1 WO2025200023 A1 WO 2025200023A1 CN 2024085059 W CN2024085059 W CN 2024085059W WO 2025200023 A1 WO2025200023 A1 WO 2025200023A1
Authority
WO
WIPO (PCT)
Prior art keywords
mapping type
symbols
amplitudes
amplitude
data bit
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/CN2024/085059
Other languages
English (en)
Chinese (zh)
Inventor
郤伟
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.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software 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 Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202480035167.3A priority Critical patent/CN121368880A/zh
Priority to PCT/CN2024/085059 priority patent/WO2025200023A1/fr
Publication of WO2025200023A1 publication Critical patent/WO2025200023A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a communication method, device, and storage medium.
  • the uplink (UL) of the New Radio (NR) supports two waveforms: Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) and Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM).
  • CP-OFDM Cyclic Prefix Orthogonal Frequency Division Multiplexing
  • DFT-s-OFDM Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing
  • the embodiments of the present disclosure provide a communication method, device, and storage medium.
  • a communication method which is executed by a terminal.
  • the method includes:
  • Acquire first information where the first information is used to indicate a mapping type of a data bit sequence
  • the symbol sequence is transmitted.
  • a communication method is provided, which is performed by a network device.
  • the method includes:
  • the first information is used to indicate a mapping type of a data bit sequence, where the mapping type is used to map the data bit sequence into a symbol sequence, where symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer;
  • the symbol sequence is received.
  • a communication device including:
  • a processing module configured to obtain first information indicating a mapping type of a data bit sequence; and further configured to map the data bit sequence into a symbol sequence according to the mapping type, where symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer;
  • the transceiver module is configured to send the symbol sequence.
  • a communication device including:
  • the transceiver module is configured to send first information to the terminal, where the first information is used to indicate a mapping type of a data bit sequence, where the mapping type is used to map the data bit sequence into a symbol sequence, where symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer; and is also configured to receive the symbol sequence.
  • a communication device including:
  • processors one or more processors
  • the communication device is used to execute the communication method proposed in the first aspect or the second aspect.
  • a communication system including a terminal and a network device, wherein the terminal is configured to implement the communication method proposed in the first aspect, and the network device is configured to implement the communication method proposed in the second aspect.
  • a storage medium which stores instructions.
  • the communication device executes the communication method proposed in the first aspect or the second aspect.
  • a computer program product comprising a computer program and/or instructions, which, when executed by a communication device, implement the communication method proposed in the first aspect or the second aspect.
  • the terminal performs amplitude modulation on the data bit sequence according to the mapping type, that is, mapping the data bit sequence into a symbol sequence.
  • Amplitude modulation can achieve greater diversity gain and higher reliability in the Khatri-Rao domain, thereby enhancing uplink coverage.
  • FIG1 is a schematic diagram of an exemplary architecture of a communication system provided according to an embodiment of the present disclosure.
  • FIG2 is an exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure.
  • FIG3A is a schematic diagram illustrating the amplitude of a 64QAM constellation diagram according to an embodiment of the present disclosure.
  • FIG3B is a schematic diagram of an amplitude selected based on a first mapping type according to an embodiment of the present disclosure.
  • FIG3C is a schematic diagram of amplitude selected based on the second mapping type according to an embodiment of the present disclosure.
  • FIG3D is a schematic diagram of amplitude selected based on a third mapping type according to an embodiment of the present disclosure.
  • FIG4 is a schematic diagram of an exemplary flow of a communication method provided according to an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of an exemplary flow of a communication method provided according to an embodiment of the present disclosure.
  • FIG6A is a schematic diagram illustrating an exemplary interaction of a communication method according to an embodiment of the present disclosure.
  • FIG6B is a schematic diagram illustrating an exemplary interaction of a communication method according to an embodiment of the present disclosure.
  • FIG7A is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.
  • FIG7B is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.
  • FIG8A is a schematic diagram of an exemplary structure of a communication device provided according to an embodiment of the present disclosure.
  • FIG8B is a schematic diagram of an exemplary structure of a chip provided according to an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a communication method, device, and storage medium.
  • an embodiment of the present disclosure provides a communication method, which is executed by a terminal.
  • the method includes:
  • Acquire first information where the first information is used to indicate a mapping type of a data bit sequence
  • the symbol sequence is transmitted.
  • the terminal performs amplitude modulation on the data bit sequence based on the mapping type, that is, mapping the data bit sequence into a symbol sequence.
  • the network device can dynamically indicate the mapping type. Amplitude modulation can achieve greater diversity gain and higher reliability in the Khatri-Rao domain, thereby enhancing uplink coverage.
  • every b data bits in the data bit sequence are mapped to N RF symbols, the N RF symbols have the same amplitude, and N RF is a positive integer.
  • every b data bits are mapped to N RF symbols with the same amplitude.
  • the N RF symbols carry the same data bits, so that the receiving end (network device) performs spatial domain filtering.
  • the amplitudes of the N RF symbols satisfy at least one of the following:
  • the mapping type is the first mapping type, and the amplitude of the N RF symbols is one of the 2 b amplitudes with the smallest amplitude in the constellation diagram;
  • the mapping type is the second mapping type, and the amplitude of the N RF symbols is one of the 2 b amplitudes with the largest amplitude in the constellation diagram;
  • the mapping type is the third mapping type, and the amplitude of the N RF symbols is one of the 2 b amplitudes in the constellation diagram that satisfies the maximum minimum difference between amplitudes.
  • the mapping type is the first mapping type, which minimizes the total transmit power of the terminal to save power consumption.
  • the mapping type is the second mapping type, which maximizes the total transmit power of the terminal to avoid the receiving end being unable to receive the signal due to insufficient transmit power and further improve uplink coverage.
  • the mapping type is the third mapping type, which increases the amplitude interval of the modulation symbols to improve the reliability and accuracy of the receiving end's decision.
  • the network device can dynamically indicate the mapping type, for example, instructing the terminal to use a certain mapping type based on the terminal's location in the network.
  • the mapping relationship between every b data bits and amplitude is Gray mapping.
  • mapping relationship between b data bits and amplitude can adopt Gray mapping to reduce the bit error rate (BER).
  • an embodiment of the present disclosure provides a communication method, which is performed by a network device.
  • the method includes:
  • the first information is used to indicate a mapping type of a data bit sequence, where the mapping type is used to map the data bit sequence into a symbol sequence, where symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer;
  • the symbol sequence is received.
  • every b data bits in the data bit sequence are mapped to N RF symbols, the N RF symbols have the same amplitude, and N RF is a positive integer.
  • the mapping type is the first mapping type, and the amplitude of the N RF symbols is one of the 2 b amplitudes with the smallest amplitude in the constellation diagram;
  • an embodiment of the present disclosure provides a communication device, including:
  • the transceiver module is configured to send first information to the terminal, where the first information is used to indicate a mapping type of a data bit sequence, where the mapping type is used to map the data bit sequence into a symbol sequence, where symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, where b is a positive integer; and is also configured to receive the symbol sequence.
  • an embodiment of the present disclosure proposes a communication device, comprising: one or more processors; wherein the communication device is used to execute the method described in the optional implementation manner of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the method described in the optional implementation manner of the first aspect, and the network device is configured to implement the method described in the optional implementation manner of the second aspect.
  • an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the optional implementation of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a computer program product, comprising a computer program and/or instructions, which, when executed by a communication device, implement the method described in the optional implementation manner of the first aspect or the second aspect.
  • an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first or second aspect.
  • the embodiments of the present disclosure provide a communication method, apparatus, and storage medium.
  • the terms communication method and uplink transmission method can be used interchangeably.
  • plurality refers to two or more.
  • first device and the “second device” can be the same device or different devices, and their types can be the same or different; for example, if the description object is "information”, then the "first information” and the “second information” can be the same information or different information, and their contents can be the same or different.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not less than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “not more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
  • network can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
  • the "access network device (AN device)” may also be referred to as a “radio access network device (RAN device)", “base station (BS)", “radio base station (radio base station)”, “fixed station (fixed station)”, and in some embodiments may also be understood as a “node (node)", “access point (access point)", “transmission point (TP)”, “reception point (RP)”, “transmission and/or reception point (transmission/reception point, TRP)", “panel”, “antenna panel”, “antenna array”, “cell", “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “serving cell”, “carrier”, “component carrier”, “bandwidth part (BWP)", etc.
  • RAN device radio access network device
  • BS base station
  • RP reception point
  • TRP transmission and/or reception point
  • terminal or “terminal device” may be referred to as "user equipment (UE)", “user terminal”, “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery
  • the network device 102 includes, for example, an access network device.
  • the access network device is, for example, a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the embodiments of the present disclosure involve The interfaces between or within access network devices can be transformed into internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.
  • the access network device may be composed of a centralized unit (CU) and a distributed unit (DU), where the CU may also be called a control unit.
  • the CU-DU structure may be used to split the protocol layers of the access network device, with some functions of the protocol layers centrally controlled by the CU, and the remaining functions of some or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto.
  • the entities shown in FIG1 are illustrative only.
  • the communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 .
  • the number and form of the entities are arbitrary, and the entities may be physical or virtual.
  • the connection relationships between the entities are illustrative only.
  • the entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 5G new radio NR
  • Future Radio Access FX
  • RAT New Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM Global System for Mobile communications
  • CDMA 2000 Ultra Mobile Broadband
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark)
  • PLMN Public Land Mobile Network
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine
  • IoT Internet of Things
  • V2X Vehicle to Everything
  • V2X Vehicle to Everything
  • MIMO technology also known as multiple-input, multiple-output (MIMO) technology
  • MIMO technology can achieve spatial diversity and spatial multiplexing. Spatial diversity can significantly improve the reliability of communication links, while spatial multiplexing can greatly increase the spectral efficiency of communication links.
  • MIMO technology is a key physical layer transmission technology, including 4G LTE systems, 5G NR systems, and even future wireless communication systems (such as 6G communication systems).
  • multi-antenna arrays are primarily uniform arrays, such as the common one-dimensional uniform linear array (ULA) and two-dimensional uniform planar array (UPA).
  • uniform arrays there are also sparse arrays.
  • the individual antenna elements (element groups) in a sparse array are non-uniformly distributed, such as the common minimum redundancy array (MRA) and Golomb array.
  • MRA common minimum redundancy array
  • sparse arrays have the following advantages: 1) With the same number of antenna elements, sparse arrays can achieve a larger antenna aperture, thereby obtaining higher spatial resolution; 2) With the same antenna aperture, sparse arrays have fewer antenna elements, fewer RF channels, lower power consumption, and less mutual coupling between antennas.
  • uplink coverage has always been a bottleneck due to the limited transmit power of user equipment (UE).
  • UE user equipment
  • the 4G LTE system introduced the DFT-s-OFDM waveform.
  • This waveform has a low peak-to-average power ratio (PAPR), allowing for smaller power backoff during power amplification to achieve higher transmit power. Therefore, the DFT-s-OFDM waveform continues to be used in 5G NR systems.
  • PAPR peak-to-average power ratio
  • the UL of 5G NR supports both CP-OFDM and DFT-s-OFDM waveforms, and switches between them. For example, when the UE is at the edge of the cell, the DFT-s-OFDM waveform is used; when the UE is at the center of the cell, the CP-OFDM waveform is used.
  • DFT-s-OFDM is not well-suited for multi-layer transmission, whether for single-user or multi-user use.
  • the DFT-s-OFDM waveform only supports single-layer transmission.
  • the DFT-s-OFDM waveform requires specialized processing distinct from the CP-OFDM waveform, such as operations related to the Demodulation Reference Signal (DMRS) and the Phase Tracking Reference Signal (PTRS). This significantly increases system complexity and cost, leading to the need for unified waveforms and operations.
  • DMRS Demodulation Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the terminal can dynamically switch between quadrature amplitude modulation (QAM) and amplitude modulation (AM), and use a unified waveform (such as CP-OFDM waveform) for uplink transmission, which can reduce the complexity and cost of the system.
  • QAM quadrature amplitude modulation
  • AM amplitude modulation
  • Amplitude modulation can obtain greater diversity gain and higher reliability in the Khatri-Rao domain, and achieve uplink coverage enhancement under the unified CP-OFDM waveform.
  • Network equipment can dynamically indicate the modulation method on the terminal side. For example, for terminals at the cell edge, it can instruct them to use amplitude modulation to achieve enhanced uplink coverage. For example, for terminals at the cell center, it can instruct them to use orthogonal amplitude modulation to achieve high-speed uplink transmission.
  • amplitude modulation may be performed based on a constellation diagram method, that is, every b data bits in a data bit sequence are mapped to N RF symbols.
  • the phase of each of the N RF symbols is a random phase within [0, 2 ⁇ ).
  • the phases of the N RF symbols are independent of each other.
  • the phase of each of the N RF symbols is a random phase uniformly distributed within [0, 2 ⁇ ).
  • the The amplitude corresponding to the b data bits in the QAM constellation diagram is amplitude one, and N RF constellation symbols are independently randomly selected from the constellation symbols with amplitude one in the QAM constellation diagram, thereby mapping the b data bits to N RF symbols.
  • the b data bits need to be mapped to one of the 2 b amplitudes among the q(M) amplitudes of the QAM constellation. Therefore, when q(M) is greater than 2 b , it is necessary to select 2 b amplitudes from the q(M) amplitudes and map each b data bit in the data bit sequence to one of the selected 2 b amplitudes.
  • the above technical solution faces the problem of how to select 2 b amplitudes from the q(M) amplitudes.
  • Step S2101 The network device sends first information to the terminal, where the first information is used to indicate a mapping type of a data bit sequence.
  • the first information is carried in downlink control information (DCI) including an uplink scheduling grant.
  • DCI downlink control information
  • an indication field is added to the DCI including the uplink scheduling grant.
  • the second mapping type indicates that the amplitude of the modulation symbol is the 2 b amplitudes with the largest amplitude (power) in the constellation diagram;
  • the third mapping type indicates that the amplitude of the modulation symbol is the 2 b amplitudes in the constellation diagram that satisfy the maximum minimum difference between the amplitudes (power).
  • the name of the first mapping type is not limited, and its example is “minimum mapping (minMapping)".
  • the name of the second mapping type is not limited, and its example is “maximum mapping (maxMapping)”.
  • the name of the third mapping type is not limited, and its example is "minimum maximization mapping (minMaxMapping)”.
  • mapping type, amplitude modulation type, mapping mode, etc. are interchangeable.
  • Step S2102 Map the data bit sequence into a symbol sequence according to the mapping type.
  • the data bit sequence is mapped to a symbol sequence according to a mapping type, wherein symbols of different amplitudes in the symbol sequence correspond to b data bits in different states in the data bit sequence, and b is a positive integer.
  • every b data bits in the data bit sequence are mapped to N RF symbols according to a mapping type, the N RF symbols have the same amplitude, and N RF is a positive integer.
  • the amplitude of the N RF symbols is one of the 2 b amplitudes with the smallest amplitude in the constellation diagram;
  • the amplitude of the N RF symbols is one of the 2 b amplitudes with the largest amplitude in the constellation diagram;
  • the amplitude of the N RF symbols is one of the 2 b amplitudes in the constellation diagram that satisfies the maximum minimum difference between amplitudes.
  • the amplitudes of the N RF symbols depend on a mapping relationship between b data bits and amplitudes.
  • the mapping relationship between b data bits and amplitudes may adopt Gray mapping to reduce a bit error rate (BER).
  • each of the N RF symbols is determined from constellation symbols of corresponding magnitude in a constellation diagram.
  • the network device receives a symbol sequence.
  • the network device receives a symbol sequence transmitted via a first waveform.
  • the network device detects (equalizes) the received signal of the symbol sequence.
  • the network device performs spatial domain filtering on the received signals of N RF symbols with the same amplitude and carrying the same data bits, transforms the signals into the Khatri-Rao domain, and detects the equivalent transmitted signals of the N RF symbols in the Khatri-Rao domain.
  • the modulation mode is amplitude modulation
  • the amplitudes of the N RF symbols are the same and they carry the same data bits.
  • the network device performs spatial filtering on the N RF received signal vectors (i.e., yi ) and transforms the signal into the Khatri-Rao domain.
  • the filtered signal can be expressed as is the equivalent received signal in Khatri-Rao domain, is the equivalent channel matrix in Khatri-Rao domain, For the equivalent signaling in Khatri-Rao domain, is the equivalent noise in Khatri-Rao domain. Based on this, Detection.
  • the mapping type is the first mapping type, which minimizes the total transmit power of the terminal to save power consumption.
  • the mapping type is the second mapping type, which maximizes the total transmit power of the terminal to avoid the receiving end (network device) being unable to receive the signal due to insufficient transmit power and further improve uplink coverage.
  • the mapping type is the third mapping type, which increases the amplitude interval of the modulation symbols to improve the reliability and accuracy of the receiving end's decision.
  • the network device can dynamically indicate the mapping type, for example, instructing the terminal to use a certain mapping type based on the terminal's location in the network.
  • the antenna array on the network device side is a sparse array, which can achieve the same effect as a uniform array using more antennas with fewer receiving antennas, thereby saving costs.
  • the names of information, etc. are not limited to the names described in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “codeword”, “codepoint”, “bit”, “data”, and “chip” can be used interchangeably.
  • downlink In some embodiments, the terms “downlink”, “physical downlink”, etc. can be used interchangeably.
  • DCI downlink control information
  • DL downlink assignment
  • DL DCI downlink DCI
  • "obtain”, “get”, “get”, “receive”, “transmit”, “bidirectional transmission”, “send and/or receive” can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.
  • the communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103.
  • step S2102 may be implemented as an independent embodiment
  • step S2101 + step S2102 may be implemented as an independent embodiment
  • step S2102 + step S2103 may be implemented as an independent embodiment, but the present disclosure is not limited thereto.
  • step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which is executed by a terminal and includes:
  • Step S4101 Obtain first information.
  • the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.
  • the terminal obtains first information specified by the protocol.
  • the first information is used to indicate a mapping type of the data bit sequence.
  • the mapping type of the data bit sequence includes at least one of the following: a first mapping type; a second mapping type; or a third mapping type.
  • the first information is carried in a DCI including an uplink scheduling grant.
  • step S4101 is omitted.
  • the data bit sequence can be mapped to the symbol sequence according to a default value of the mapping type.
  • the default value of the mapping type can be predefined or configured by the network device.
  • the terminal can independently determine the mapping type of the data bit sequence.
  • Step S4102 Map the data bit sequence into a symbol sequence according to the mapping type.
  • the data bit sequence is a code block sequence after channel coding.
  • every b data bits in the data bit sequence are mapped to N RF symbols, the N RF symbols have the same amplitude, and N RF is a positive integer.
  • the N RF is predefined or configured by a network device (or other entity).
  • the amplitudes of the NRF symbols satisfy at least one of the following:
  • the amplitude of the N RF symbols is one of the 2 b amplitudes with the smallest amplitude in the constellation diagram;
  • the amplitude of the N RF symbols is one of the 2 b amplitudes with the largest amplitude in the constellation diagram;
  • the amplitude of the N RF symbols is one of the 2 b amplitudes in the constellation diagram that satisfies the maximum minimum difference between amplitudes.
  • mapping relationship between every b data bits and amplitude is Gray mapping.
  • each of the N RF symbols is determined from constellation symbols of corresponding magnitude in a constellation diagram.
  • the phase of each of the N RF symbols is a random phase within [0, 2 ⁇ ).
  • Step S4103 Send a symbol sequence.
  • Step S5101 sending the first information.
  • step S5101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.
  • Step S5102 Receive a symbol sequence.
  • the MI is used to indicate the modulation mode.
  • the MI value can be QAM or AM.
  • MI configuration can be accomplished through at least one of DCI, MAC Control Element (MAC CE), and Radio Resource Control (RRC) signaling. For example, a MI field containing one bit is added to the DCI containing the uplink scheduling grant.
  • MAC CE MAC Control Element
  • RRC Radio Resource Control
  • step S6101 is omitted, for example, the UE modulates the data bit sequence according to a default value of the modulation mode.
  • the UE may autonomously determine the modulation mode.
  • Step S6102 The base station configures a repetition factor (RF) for the UE.
  • RF repetition factor
  • the base station configures the RF for the UE, with the RF value being N RF .
  • RF configuration can be accomplished through at least one of DCI, MAC CE, and RRC signaling. For example, an RF field is added to the DCI containing the uplink scheduling grant.
  • step S6102 is omitted.
  • the base station does not configure RF for the UE.
  • RF may be predefined by a protocol.
  • Step S6103 The base station configures the amplitude modulation type (AMT) for the UE.
  • AMT amplitude modulation type
  • AMT is used to indicate the mapping type.
  • the value of AMT can be one of the following:
  • Minimum mapping The amplitude of the modulation symbol is the 2 b amplitudes with the smallest amplitude (power) in the constellation diagram;
  • Maximum mapping The amplitude of the modulation symbol is the 2 b amplitudes with the largest amplitude (power) in the constellation diagram;
  • MinMaxMapping The amplitude of the modulation symbol is the 2b amplitudes in the constellation diagram that have the largest minimum difference between the amplitudes (power).
  • AMT configuration can be accomplished through at least one of DCI, MAC CE, and RRC signaling.
  • an AMT field can be added to the DCI containing the uplink scheduling grant.
  • step S6103 is omitted.
  • the UE may map the data bit sequence to the symbol sequence according to the default value of AMT.
  • the default value of AMT may be predefined by the protocol or configured by the base station.
  • the UE may autonomously determine AMT.
  • Step S6104 The UE maps the data bit sequence into a symbol sequence according to the MI.
  • the UE modulates the data bit sequence based on the received MI, that is, maps the data bit sequence into a symbol sequence.
  • the data bit sequence is a code block sequence after channel coding.
  • QAM constellation mapping
  • AM amplitude modulation
  • every b data bits are mapped to N RF symbols, and the amplitudes of the N RF symbols are the same.
  • the UE maps each b data bit to the 2b amplitudes with the smallest amplitude (power) in the constellation. Specifically, b data bits are mapped to N RF symbols, each of which has the same amplitude and is one of the 2b amplitudes with the smallest amplitude (power) in the constellation.
  • the UE maps each b data bit to the 2b amplitudes with the largest amplitude (power) in the constellation. Specifically, b data bits are mapped to N RF symbols, each of which has the same amplitude and is one of the 2b amplitudes with the largest amplitude (power) in the constellation.
  • the UE maps each b data bit to the 2b amplitudes in the constellation that satisfy the maximum minimum difference between amplitudes (powers). Specifically, b data bits are mapped to N RF symbols, each of which has the same amplitude and is one of the 2b amplitudes in the constellation that satisfy the maximum minimum difference between amplitudes (powers).
  • mapping relationship between data bits and amplitudes can adopt Gray mapping to reduce the bit error rate (BER).
  • Step S6105 The UE sends a symbol sequence.
  • the UE sends a symbol sequence via a CP-OFDM waveform.
  • Step S6106 The base station detects (equalizes) the signal sent by the UE.
  • FIG6B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG6B , the communication method includes:
  • Step S6201 The base station configures AMT for the UE.
  • Step S6202 The UE maps the data bit sequence into a symbol sequence according to the AMT.
  • step S6202 can refer to the optional implementation of step S6104 in Figure 6A and other related parts in the embodiment involved in Figure 6A, which will not be repeated here.
  • the UE performs amplitude modulation on the data bit sequence, and during the amplitude modulation, maps the data bit sequence into a symbol sequence according to the AMT.
  • Step S6203 The UE sends a symbol sequence.
  • the UE sends a symbol sequence via a CP-OFDM waveform.
  • the embodiments of the present disclosure further provide an apparatus for implementing any of the above methods.
  • an apparatus comprising units or modules for implementing each step performed by a terminal in any of the above methods.
  • another apparatus comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device e.g., an access network device, a core network function node, a core network device, etc.
  • the communication device 8100 may include one or more interface circuits 8104.
  • the interface circuit 8104 is connected to the memory 8102.
  • the interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices.
  • the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.
  • FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.
  • the interface circuit 8202 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2101, step S2103, but not limited to this), and the processor 8201 performs at least one of the other steps (for example, step S2102, but not limited to this).
  • the present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Landscapes

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

Abstract

La présente divulgation concerne un procédé et un appareil de communication, ainsi qu'un support de stockage. Le procédé de communication comprend les étapes suivantes : un terminal acquiert de premières informations, les premières informations étant utilisées pour indiquer un type de mappage d'une séquence de bits de données ; le terminal mappe la séquence de bits de données en une séquence de symboles sur la base du type de mappage, des symboles d'amplitudes différentes dans la séquence de symboles correspondant à b bits de données dans différents états dans la séquence de bits de données, et b étant un nombre entier positif ; et le terminal envoie la séquence de symboles. Dans des modes de réalisation de la présente divulgation, le terminal effectue une modulation d'amplitude sur la séquence de bits de données sur la base du type de mappage, c'est-à-dire le mappage de la séquence de bits de données dans la séquence de symboles. La modulation d'amplitude peut atteindre un gain de diversité supérieur et une fiabilité supérieure dans un domaine Khatri-Rao, ce qui permet d'obtenir une amélioration de couverture de liaison montante.
PCT/CN2024/085059 2024-03-29 2024-03-29 Procédé et appareil de communication, et support de stockage Pending WO2025200023A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202480035167.3A CN121368880A (zh) 2024-03-29 2024-03-29 通信方法、装置和存储介质
PCT/CN2024/085059 WO2025200023A1 (fr) 2024-03-29 2024-03-29 Procédé et appareil de communication, et support de stockage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/085059 WO2025200023A1 (fr) 2024-03-29 2024-03-29 Procédé et appareil de communication, et support de stockage

Publications (1)

Publication Number Publication Date
WO2025200023A1 true WO2025200023A1 (fr) 2025-10-02

Family

ID=97218613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/085059 Pending WO2025200023A1 (fr) 2024-03-29 2024-03-29 Procédé et appareil de communication, et support de stockage

Country Status (2)

Country Link
CN (1) CN121368880A (fr)
WO (1) WO2025200023A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7376075B1 (en) * 2003-09-26 2008-05-20 Conexant Systems, Inc. Circular constellations with coherent gain/differential phase and pilots
CN109804580A (zh) * 2016-10-10 2019-05-24 萨伯康姆有限责任公司 用于可变频谱效率的利用具有圆形星座的振幅相移键控的编码调制
US20200092155A1 (en) * 2016-12-21 2020-03-19 Nec Corporation Modulation method, decoding method, modulation device, and demodulation device
CN115442194A (zh) * 2021-06-02 2022-12-06 中兴通讯股份有限公司 一种数据传输方法、通信节点及计算机可读存储介质
WO2023039766A1 (fr) * 2021-09-15 2023-03-23 华为技术有限公司 Procédé et appareil de transmission de signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7376075B1 (en) * 2003-09-26 2008-05-20 Conexant Systems, Inc. Circular constellations with coherent gain/differential phase and pilots
CN109804580A (zh) * 2016-10-10 2019-05-24 萨伯康姆有限责任公司 用于可变频谱效率的利用具有圆形星座的振幅相移键控的编码调制
US20200092155A1 (en) * 2016-12-21 2020-03-19 Nec Corporation Modulation method, decoding method, modulation device, and demodulation device
CN115442194A (zh) * 2021-06-02 2022-12-06 中兴通讯股份有限公司 一种数据传输方法、通信节点及计算机可读存储介质
WO2023039766A1 (fr) * 2021-09-15 2023-03-23 华为技术有限公司 Procédé et appareil de transmission de signal

Also Published As

Publication number Publication date
CN121368880A (zh) 2026-01-20

Similar Documents

Publication Publication Date Title
CN111886809B (zh) 上行天线的选择方法和装置
US11381288B2 (en) Communication method, network device, and terminal device
KR102374244B1 (ko) 업링크 제어 채널을 전송하기 위한 방법 및 장치
CN116114228B (zh) 通信方法、装置
WO2025160774A1 (fr) Procédé de communication, terminal, dispositif, appareil, système, support et programme
WO2025160761A1 (fr) Procédé, appareil et système de communication, dispositif de nœud et support de stockage
WO2025200023A1 (fr) Procédé et appareil de communication, et support de stockage
WO2025200017A1 (fr) Procédé et appareil de communication, et support de stockage
WO2025097372A1 (fr) Procédé et appareil de configuration de ressources otfs et support de stockage
WO2025231621A1 (fr) Procédé et appareil de communication, support de stockage
WO2026000263A1 (fr) Procédé, appareil et système de communication
WO2026000264A1 (fr) Procédé, appareil et système de communication
WO2025025237A1 (fr) Procédé d'indication de livre de codes, terminal, et dispositif réseau
WO2025111886A1 (fr) Procédé, appareil et système de communication, ainsi que support d'enregistrement
WO2025025186A1 (fr) Procédés de communication, terminaux, dispositifs de réseau, et support de stockage
WO2026020480A1 (fr) Procédés de commutation de forme d'onde, terminaux, dispositifs de réseau, système, ainsi que support de stockage
WO2026090802A1 (fr) Procédé de communication, terminal, dispositif de réseau, et support de stockage
WO2025025241A1 (fr) Procédé d'indication de livre de codes, terminal, et dispositif réseau
WO2026044755A1 (fr) Procédé, dispositif et système de communication, et support de stockage
WO2025035304A1 (fr) Procédé et appareil de communication, dispositif de communication et support de stockage
WO2026090801A1 (fr) Procédé de communication, terminal, dispositif de réseau, et support de stockage
WO2026090803A1 (fr) Procédé de communication, terminal, dispositif de réseau, et support de stockage
WO2025166789A1 (fr) Procédé de transmission de signal, dispositif et support de stockage
WO2025111895A1 (fr) Procédé de communication, terminal, dispositif de réseau et système de communication
WO2025086276A1 (fr) Procédé et appareil de transmission de signal, et support de stockage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24932099

Country of ref document: EP

Kind code of ref document: A1