WO2020102947A1 - Procédé, dispositif et système de réception d'informations - Google Patents

Procédé, dispositif et système de réception d'informations

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Publication number
WO2020102947A1
WO2020102947A1 PCT/CN2018/116255 CN2018116255W WO2020102947A1 WO 2020102947 A1 WO2020102947 A1 WO 2020102947A1 CN 2018116255 W CN2018116255 W CN 2018116255W WO 2020102947 A1 WO2020102947 A1 WO 2020102947A1
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WO
WIPO (PCT)
Prior art keywords
matrix
transformation matrix
indication information
order
mcs
Prior art date
Application number
PCT/CN2018/116255
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English (en)
Chinese (zh)
Inventor
谢信乾
郭志恒
程型清
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2018/116255 priority Critical patent/WO2020102947A1/fr
Priority to CN201880098979.7A priority patent/CN112913154B/zh
Publication of WO2020102947A1 publication Critical patent/WO2020102947A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

Definitions

  • transmission resources can be distributed in multiple dimensions such as time domain, frequency domain, and code domain.
  • LTE Long Term Evolution
  • the maximum time unit is a radio frame with a length of 10 ms.
  • the radio frame can be divided into 10 subframes with a length of 1 ms.
  • Each subframe The frame can be divided into two time slots with a length of 0.5 milliseconds, and each time slot contains 6 or 7 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols.
  • OFDM Orthogonal frequency division multiplexing
  • the system divides the available frequency resources into several subcarriers, and each subcarrier occupies a bandwidth of 15000 Hz in the frequency domain.
  • the bit data needs to be modulated into a signal with amplitude and phase for transmission.
  • the signal is often represented by a complex number, and the complex number is called a modulation symbol .
  • the commonly used modulation methods are BPSK, QPSK, 16QAM, 64QAM and so on.
  • the transmitting device first processes the bit signal to generate modulation symbols, and then maps the modulation symbols to time-frequency resources.
  • the transmitting device may generate modulation symbols in a DFT-S-OFDM or OTFS manner.
  • the transmission device uses linear transformation based on DFT or IDFT for the operation of OFDM time-domain symbols, which makes each time-frequency resource unit have more modulation symbols superimposed, resulting in serious inter-symbol interference.
  • Relatively higher-order modulation methods such as 16QAM and 64QAM, will affect the reliability of the demodulated signal of the receiving device.
  • Embodiments of the present application provide a method, device, and system for receiving information, which can flexibly select a transformation matrix, thereby improving the flexibility of communication, and optimize the method of linear transformation of a signal, which can achieve a compromise between transmission reliability and complexity.
  • the transformation matrix can be flexibly selected according to the indication information, thereby improving the flexibility of communication; if the first indication information indicates matrix, matrix, Matrix or The matrix can optimize the method of linear transformation of the signal, and then achieve a compromise between transmission reliability and complexity.
  • the method further includes: the network device determines second indication information, where the second indication information is used to indicate at least one second MCS; the network The device sends second indication information to the terminal device. That is, the corresponding relationship between the MCS and the transformation matrix can be indicated by the second indication information, and then the target transformation matrix can be indicated by the first indication information, thereby improving the flexibility of communication and achieving a compromise between transmission reliability and complexity.
  • the second indication information is carried in radio resource control RRC layer signaling. That is to say, the network device may send the second indication information by sending radio resource control RRC layer signaling, and indicate the correspondence between the MCS and the transformation matrix through the second indication information, and then indicate the target transformation matrix through the first indication information, thereby Improve the flexibility of communication and achieve a compromise between transmission reliability and complexity.
  • an embodiment of the present application provides a method for receiving information.
  • the method includes: a terminal device receives first indication information from a network device; the terminal device determines a target transformation matrix according to the first indication information, and the target transformation matrix is A matrix in a set of transformation matrices, the set of transformation matrices includes an N-order discrete Fourier transform DFT matrix, an N-order permutation matrix, matrix, Matrix, M-order inverse discrete Fourier transform IDFT matrix, M-order permutation matrix, Matrix and One or more of the matrices; where N and M are positive integers, DFT k represents the k-th order DFT matrix, I n represents the n-th order identity matrix, P n represents the n-th order permutation matrix, IDFT k represents the k-th order IDFT matrix, I m represents the m-th order identity matrix, P m represents the m-th order permutation matrix, Represents the Kronecker product, k *
  • the transformation matrix can be flexibly selected according to the indication information, thereby improving the flexibility of communication;
  • the target transformation matrix determined by the first indication information matrix, matrix, Matrix and The matrix can optimize the method of linear transformation of the signal, and then achieve a compromise between transmission reliability and complexity.
  • the correspondence between MCS and transformation matrix includes: QPSK modulation method corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix Or, a coding rate less than a preset threshold corresponds to the first transformation matrix, and a coding rate greater than or equal to the preset threshold corresponds to the second transformation matrix. That is to say, the relationship between the modulation mode and the transformation matrix, the relationship between the coding rate and the transformation matrix can be preset as needed, and then the target transformation matrix can be determined according to the above corresponding relationship, thereby improving the flexibility of communication and achieving transmission reliability and complexity Degree of compromise.
  • the first indication information is carried in the downlink control information DCI. That is to say, the terminal device can receive the first indication information by receiving the downlink control information DCI from the network device, and then determine the target transformation matrix through the first indication information, thereby improving the flexibility of communication, and realizing the transmission reliability and complexity compromise.
  • the method further includes: the terminal device receives second indication information from the network device, and the second indication information is used to indicate at least one first Two MCS; the terminal device determines the correspondence between the MCS and the transformation matrix according to the second indication information.
  • the terminal device can determine the correspondence between the MCS and the transformation matrix through the second indication information, and then determine the target transformation matrix through the first indication information, thereby improving the flexibility of communication and achieving a compromise between transmission reliability and complexity .
  • the second indication information is carried in radio resource control RRC layer signaling. That is, the terminal device can receive the second indication information by receiving radio resource control RRC layer signaling from the network device, and determine the correspondence between the MCS and the transformation matrix through the second indication information, and then determine the target transformation through the first indication information Matrix, thereby enhancing the flexibility of communication and achieving a compromise between transmission reliability and complexity.
  • the method further includes: the terminal device determining the first signal according to the target transformation matrix and sending the first signal to the network device; or, The terminal device receives a second signal from the network device, and the second signal is determined by the target transformation matrix. That is, the terminal device can send the first signal determined by the target transformation matrix to the network device, or the terminal device can receive the second signal determined by the target transformation matrix from the network device, thereby improving the flexibility of communication and achieving transmission A compromise between reliability and complexity.
  • a network device having the method and functions described in the first aspect.
  • This function can be realized by hardware, and can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a terminal device which has the method and function for implementing the above-mentioned second aspect.
  • This function can be realized by hardware, and can also be realized by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • An embodiment of the present application further provides a network device, including: at least one processor, at least one memory, and a communication interface, the communication interface, the at least one memory, and the at least one processor are coupled; the network device communicates with other devices through the communication interface
  • the at least one memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the method for receiving information as described in the first aspect and various possible implementation manners thereof is implemented.
  • An embodiment of the present application further provides a terminal device, including: at least one processor, at least one memory, and a communication interface, the communication interface, the at least one memory, and the at least one processor are coupled; the terminal device communicates with other devices through the communication interface
  • the at least one memory is used to store a computer program, so that when the computer program is executed by the at least one processor, the method for receiving information as described in the second aspect and various possible implementation manners thereof is implemented.
  • Embodiments of the present application also provide a computer-readable storage medium, such as a non-transitory computer-readable storage medium.
  • a computer program is stored thereon, and when the computer program is run on the computer, the computer is caused to perform any one of the possible methods of the first aspect or any possible method of the second aspect.
  • the computer may be at least one storage node.
  • An embodiment of the present application further provides a computer program product, which when executed on a computer, causes any method provided in the first aspect or any method provided in the second aspect to be executed.
  • the computer may be at least one storage node.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of this application.
  • FIG. 4 is a second schematic flowchart of a method for receiving information provided by an embodiment of the present application.
  • FIG. 5 is a third schematic flowchart of a method for receiving information provided by an embodiment of the present application.
  • FIG. 6 is a fourth schematic flowchart of a method for receiving information provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • At least one of the following or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items.
  • at least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .
  • the words “first” and “second” are used to distinguish the same or similar items that have substantially the same functions and functions. Those skilled in the art may understand that the words “first” and “second” do not limit the number and execution order, and the words “first” and “second” do not necessarily mean different.
  • the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 it is a schematic structural diagram of a communication system 100 provided by an embodiment of the present application.
  • the communication system 100 includes a network device 101 and a terminal device 102.
  • the network device 101 is used to receive an uplink signal from the terminal device 102 or send a downlink signal to the terminal device 102.
  • the terminal device 102 is configured to send an uplink signal to the network device 101 or receive a downlink signal from the network device 101.
  • the network device 101 provided by the embodiment of the present application may be, for example, a network device of LTE and / or NR, a base station (NodeB), an evolved base station (eNodeB), a base station in a 5G mobile communication system, a next-generation mobile communication base station (next generation Node B, gNB), a base station in a future mobile communication system or an access node in a Wi-Fi system, etc.
  • NodeB NodeB
  • eNodeB evolved base station
  • gNB next-generation mobile communication base station
  • gNB next-generation mobile communication base station
  • the terminal device 102 provided in the embodiment of the present application may be, for example, a mobile phone, a tablet computer, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control, etc., which is not specifically limited in the embodiment of the present application.
  • the network device 101 or the terminal device 102 in FIG. 1 may be implemented by one device, or may be implemented by multiple devices together, or may be a functional module in one device.
  • FIG. 2 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application.
  • the communication device 200 includes a processor 201, a communication line 202, a memory 203, and at least one communication interface 204 (only an example in FIG. 2 is illustrated by including the communication interface 204).
  • the processor 201 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more of which are used to control the execution of the program program of this application integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 202 may include a path for transferring information between the above components.
  • Communication interface 204 using any device such as a transceiver, for communicating with other devices or communication networks, such as Ethernet, wireless access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN wireless access network
  • WLAN wireless local area networks
  • the memory 203 may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), or other types of information and instructions that can be stored
  • the dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable-read-only memory (EEPROM), read-only compact disc (compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Access to any other media, but not limited to this.
  • the memory may exist independently, and is connected to the processor through the communication line 202. The memory can also be integrated with the processor.
  • the memory 203 is used to store computer execution instructions for executing the solution of the present application, and the processor 201 controls execution.
  • the processor 201 is used to execute computer-executed instructions stored in the memory 203, thereby implementing the method for receiving information provided by the following embodiments of the present application.
  • the computer execution instructions in the embodiments of the present application may also be called application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 may include multiple processors, such as the processor 201 and the processor 205 in FIG. 2. Each of these processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and / or processing cores for processing data (eg, computer program instructions).
  • the above-mentioned communication device 200 may be a general-purpose device or a dedicated device.
  • the communication device 200 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure as shown in FIG. 2 device.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 200.
  • the method for receiving information may include the following steps:
  • Step 301 The network device determines first indication information.
  • bit data In LTE and NR systems, the bit data needs to be modulated into a signal with amplitude and phase for transmission.
  • the bit data before modulation can be expressed as a matrix X of N * M, where N and M are positive integers, and N can be a An integer multiple of the number of subcarriers in the resource block.
  • N can be a An integer multiple of the number of subcarriers in the resource block.
  • the number of subcarriers in one resource block in the LTE and NR systems may be 12.
  • M can be the number of symbols in the scheduling duration at a time.
  • the bit data before modulation may be processed by a target transformation matrix to obtain a downlink signal to be sent, and the target transformation matrix is a matrix in a transformation matrix set.
  • the transformation matrix set may be pre-configured in the network device and the terminal device.
  • the target transformation matrix may be the first target transformation matrix M 1 or the second target transformation matrix M 2 .
  • M 1 may be an N * N matrix
  • M 2 may be an M * M matrix.
  • the network device may first estimate the channel state of the terminal device through uplink measurement or downlink measurement, and then the network device may determine the transformation matrix corresponding to the downlink signal according to the channel state, so that the network The first indication information can be determined when the device determines the transformation matrix.
  • the network device may also determine the first indication information according to other methods, which is not limited herein.
  • the first indication information may be carried in the downlink control information DCI, the first indication information may be radio resource control RRC layer configuration information, and the first indication information may be media intervention control MAC layer signaling. This is not specifically limited.
  • the first indication information may be indication information directly indicating the target transformation matrix, or may also be indication information indirectly indicating the target transformation matrix.
  • the first indication information may indicate the target transformation matrix by indicating the index of the target transformation matrix in the transformation matrix set, the first indication information may also indicate the target transformation matrix by indicating the modulation and coding mode MCS, and those skilled in the art may It is understood that the first indication information may also indicate the target transformation matrix in other ways, which is not specifically limited in this embodiment of the present application.
  • the first indication information may be used to indicate the target MCS; the first indication information indicates the target transformation matrix through the target MCS and the correspondence between the MCS and the transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; The rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • the QPSK modulation method may correspond to an N-order DFT matrix
  • 16QAM may correspond to an M-order permutation matrix
  • the coding rate less than the preset threshold can correspond to the N-order DFT matrix
  • the coding rate greater than or equal to the preset threshold can correspond to The matrix is not specifically limited in the embodiment of the present application.
  • M 1 may be an N-order discrete Fourier transform DFT matrix, an N-order permutation matrix, Matrix or One of the matrix.
  • DFT k represents the k-th order DFT matrix
  • I n represents the n-th order identity matrix
  • P n represents the n-th order permutation matrix
  • k * n N.
  • M 2 may be an MFT inverse discrete Fourier transform IDFT matrix, an M-order permutation matrix, Matrix or One of the matrix.
  • IDFT k represents the k-th order IDFT matrix
  • I m represents the m-th order identity matrix
  • P m represents the m-th order permutation matrix
  • k * m M.
  • Step 302 The network device sends the first indication information to the terminal device.
  • Step 303 The terminal device receives the first indication information from the network device.
  • Step 304 The network device determines the downlink signal according to the target transformation matrix.
  • Step 305 The network device sends a downlink signal to the terminal device.
  • Step 306 The terminal device receives the downlink signal from the network device.
  • the terminal device determines the target transformation matrix according to the first indication information
  • the terminal device may determine the target transformation matrix according to the target transformation matrix directly indicated by the first indication information, or may indirectly indicate the target transformation matrix according to the first indication information Determine the target transformation matrix.
  • the terminal device may determine the target transformation matrix according to the index of the target transformation matrix indicated in the first indication information in the transformation matrix set, and the terminal device may also determine the target transformation matrix according to the modulation and coding mode MCS indicated by the first indication information, Those skilled in the art may understand that the terminal device may also determine the target transformation matrix according to the target transformation matrix indicated by the first indication information in other manners, which is not specifically limited in this embodiment of the present application.
  • the terminal device may determine the target modulation and coding mode MCS according to the first indication information; the terminal device determines the target transformation matrix according to the target MCS and the correspondence between the MCS and the transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; or, the coding rate is less than a preset threshold corresponding to the first transformation matrix, encoding The rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • the QPSK modulation method may correspond to an N-order DFT matrix
  • 16QAM may correspond to an M-order permutation matrix
  • the coding rate less than the preset threshold can correspond to the N-order DFT matrix
  • the coding rate greater than or equal to the preset threshold can correspond to The matrix is not specifically limited in the embodiment of the present application.
  • Step 308 The terminal device restores the bit data before modulation according to the inverse matrix of the target transformation matrix.
  • the method for receiving information further includes steps 409-412.
  • Step 409 The network device determines second indication information, where the second indication information is used to indicate at least one second MCS.
  • the second indication information may be radio resource control RRC layer configuration information, the second indication information may be media intervention control MAC layer signaling, and the second indication information may be carried in downlink control information DCI. This is not specifically limited.
  • the second indication information may indicate the correspondence between the MCS and the transformation matrix by indicating the index of the MCS.
  • the second indication information may indicate the corresponding relationship between the MCS and the transformation matrix by indicating that the index of the MCS is 10: MCS 0- MCS 10 corresponds to the N-order DFT matrix, and MCS 11- MCS 31 corresponds matrix.
  • the second indication information may indicate the correspondence between the MCS and the transformation matrix by indicating the indexes of the MCS as 7 and 15: MCS 0- MCS 7 corresponds to the N-order DFT matrix, and MCS 8- MCS 15 corresponds Matrix, MCS 16- MCS31 corresponds to the N-th order permutation matrix.
  • Step 410 The network device sends the second indication information to the terminal device.
  • Step 411 The terminal device receives second indication information from the network device.
  • Step 412 The terminal device determines the correspondence between the MCS and the transformation matrix according to the second indication information.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the index of the MCS indicated by the second indication information.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the index 10 of the MCS indicated by the second indication information: MCS 0- MCS 10 corresponds to the N-th order DFT matrix, and MCS 11- MCS 31 corresponds matrix.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the indexes 7 and 15 of the MCS indicated by the second indication information: MCS 0- MCS 7 corresponds to the N-th order DFT matrix, and MCS 8- MCS 15 corresponds Matrix, MCS 16- MCS31 corresponds to the N-th order permutation matrix.
  • a method for receiving information is provided for an embodiment of the present application.
  • the method for receiving information may include the following steps:
  • bit data In LTE and NR systems, the bit data needs to be modulated into a signal with amplitude and phase for transmission.
  • the bit data before modulation can be expressed as a matrix X of N * M, where N and M are positive integers, and N can be a An integer multiple of the number of subcarriers in the resource block.
  • N can be a An integer multiple of the number of subcarriers in the resource block.
  • the number of subcarriers in one resource block in the LTE and NR systems may be 12.
  • M can be the number of symbols in the scheduling duration at a time.
  • the bit data before modulation may be processed by a target transformation matrix to obtain an uplink signal that needs to be sent, and the target transformation matrix is a matrix in a transformation matrix set.
  • the transformation matrix set may be pre-configured in the network device and the terminal device.
  • the target transformation matrix may be the first target transformation matrix M 1 or the second target transformation matrix M 2 .
  • M 1 may be an N * N matrix
  • M 2 may be an M * M matrix.
  • the first indication information may be carried in the downlink control information DCI, the first indication information may be radio resource control RRC layer configuration information, and the first indication information may be media intervention control MAC layer signaling. This is not specifically limited.
  • the first indication information may be indication information directly indicating the target transformation matrix, or may also be indication information indirectly indicating the target transformation matrix.
  • the first indication information may indicate the target transformation matrix by indicating the index of the target transformation matrix in the transformation matrix set, the first indication information may also indicate the target transformation matrix by indicating the modulation and coding mode MCS, and those skilled in the art may It is understood that the first indication information may also indicate the target transformation matrix in other ways, which is not specifically limited in this embodiment of the present application.
  • the first indication information may be used to indicate the target MCS; the first indication information indicates the target transformation matrix through the target MCS and the correspondence between the MCS and the transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; The rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • M 1 may be an N-order discrete Fourier transform DFT matrix, an N-order permutation matrix, Matrix or One of the matrix.
  • DFT k represents the k-th order DFT matrix
  • I n represents the n-th order identity matrix
  • P n represents the n-th order permutation matrix
  • k * n N.
  • M 2 may be an MFT inverse discrete Fourier transform IDFT matrix, an M-order permutation matrix, Matrix or One of the matrix.
  • IDFT k represents the k-th order IDFT matrix
  • I m represents the m-th order identity matrix
  • P m represents the m-th order permutation matrix
  • k * m M.
  • Step 502 The network device sends the first indication information to the terminal device.
  • Step 503 The terminal device receives the first indication information from the network device.
  • the terminal device determines the target transformation matrix according to the first indication information
  • the terminal device may determine the target transformation matrix according to the target transformation matrix directly indicated by the first indication information, or may indirectly indicate the target transformation matrix according to the first indication information Determine the target transformation matrix.
  • the terminal device may determine the target transformation matrix according to the index of the target transformation matrix indicated in the first indication information in the transformation matrix set, and the terminal device may also determine the target transformation matrix according to the modulation and coding mode MCS indicated by the first indication information, Those skilled in the art may understand that the terminal device may also determine the target transformation matrix according to the target transformation matrix indicated by the first indication information in other manners, which is not specifically limited in this embodiment of the present application.
  • the terminal device may determine the target modulation and coding mode MCS according to the first indication information; the terminal device determines the target transformation matrix according to the target MCS and the correspondence between the MCS and the transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; or, the coding rate is less than a preset threshold corresponding to the first transformation matrix, encoding The rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • Step 505 The terminal device determines the uplink signal according to the target transformation matrix.
  • Step 506 The terminal device sends an uplink signal to the network device.
  • Step 507 The network device receives the uplink signal from the terminal device.
  • the method for receiving information further includes steps 609-612.
  • Step 609 The network device determines second indication information, where the second indication information is used to indicate at least one second MCS.
  • the second indication information may be radio resource control RRC layer configuration information, the second indication information may be media intervention control MAC layer signaling, and the second indication information may be carried in the downlink control information DCI. This is not specifically limited.
  • the second indication information may indicate the correspondence between the MCS and the transformation matrix by indicating the index of the MCS.
  • the second indication information may indicate the corresponding relationship between the MCS and the transformation matrix by indicating that the index of the MCS is 10: MCS 0- MCS 10 corresponds to the N-order DFT matrix, and MCS 11- MCS 31 corresponds matrix.
  • the second indication information may indicate the correspondence between the MCS and the transformation matrix by indicating the indexes of the MCS as 7 and 15: MCS 0- MCS 7 corresponds to the N-order DFT matrix, and MCS 8- MCS 15 corresponds Matrix, MCS 16- MCS31 corresponds to the N-th order permutation matrix.
  • Step 610 The network device sends the second indication information to the terminal device.
  • Step 611 The terminal device receives second indication information from the network device.
  • Step 612 The terminal device determines the correspondence between the MCS and the transformation matrix according to the second indication information.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the index of the MCS indicated by the second indication information.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the index 10 of the MCS indicated by the second indication information: MCS 0- MCS 10 corresponds to the N-th order DFT matrix, and MCS 11- MCS 31 corresponds matrix.
  • the terminal device may determine the correspondence between the MCS and the transformation matrix according to the indexes 7 and 15 of the MCS indicated by the second indication information: MCS 0- MCS 7 corresponds to the N-th order DFT matrix, and MCS 8- MCS 15 corresponds Matrix, MCS 16- MCS31 corresponds to the N-th order permutation matrix.
  • the transformation matrix can be flexibly selected, thereby improving the flexibility of communication.
  • the method of linear transformation of the signal can be optimized to achieve a compromise between transmission reliability and complexity.
  • the above-mentioned network device or terminal device includes a hardware structure and / or a software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the function modules of the network device or the terminal device according to the above method examples, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules may be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.
  • FIG. 7 shows a schematic structural diagram of a network device 70.
  • the network device 70 includes a determination module 701 and a transceiver module 702.
  • the determining module 701 is configured to determine first indication information, and the first indication information is used to indicate a target transformation matrix, and the target transformation matrix is a matrix in a transformation matrix set, and the transformation matrix set includes an N-order discrete Fourier Leaf transform DFT matrix, N-order permutation matrix, matrix, Matrix, M-order inverse discrete Fourier transform IDFT matrix, M-order permutation matrix, Matrix and At least one of the matrices; where N and M are positive integers, DFT k represents the k-th order DFT matrix, I n represents the n-th order identity matrix, P n represents the n-th order permutation matrix, IDFT k represents the k-th order IDFT matrix, and I m represents Unit matrix of order m, P m represents the permut
  • the first indication information is used to indicate a target transformation matrix, including: the first indication information is used to indicate a target modulation and coding mode MCS; the first indication information passes through the target MCS, and the MCS and transformation The corresponding relationship of the matrix indicates the target transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; or, the encoding rate is less than a preset threshold corresponding to the first transformation matrix, The coding rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • the first indication information is carried in downlink control information DCI.
  • the determination module 701 is further configured to determine second indication information, and the second indication information is used to indicate at least one second MCS; the transceiver module 702 is also used to send a second Two indication information, the second indication information is used to indicate at least one second MCS.
  • the second indication information is carried in radio resource control RRC layer signaling.
  • the network device 70 is presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may refer to a specific ASIC, circuit, processor and memory that execute one or more software or firmware programs, integrated logic circuits, and / or other devices that can provide the above functions.
  • the network device 70 may adopt the form shown in FIG. 2.
  • the processor 201 in FIG. 2 may call the computer stored in the memory 203 to execute instructions, so that the network device 70 executes the method for receiving information in the foregoing method embodiment.
  • the functions / implementation processes of the transceiver module 702 and the determination module 701 in FIG. 7 can be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203.
  • the function / implementation process of the determination module 701 in FIG. 7 can be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203, and the function / implementation process of the transceiver module 702 in FIG. 2 to achieve the communication interface 204.
  • the network device 70 provided in this embodiment can execute the above-mentioned method for receiving information, for the technical effects it can obtain, reference may be made to the above-mentioned method embodiments, which will not be repeated here.
  • an embodiment of the present application further provides an apparatus (for example, the apparatus may be a chip system), and the apparatus includes a processor for supporting a network device to implement the foregoing method for receiving information, for example, determining the first indication information, And send the first indication information to the terminal device.
  • the device also includes a memory.
  • the memory is used to store necessary program instructions and data of network equipment.
  • the memory may not be in the device.
  • the device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.
  • FIG. 8 shows a schematic structural diagram of a terminal device 80.
  • the terminal device 80 includes a transceiver module 801 and a determination module 802.
  • the transceiver module 801 is configured to receive the first indication information from the network device.
  • the determination module 802 is configured to determine a target modulation and coding mode MCS according to the first indication information; and determine a target transformation matrix according to the target MCS and the correspondence between the MCS and the transformation matrix.
  • the correspondence between the MCS and the transformation matrix includes: the QPSK modulation mode corresponds to the first transformation matrix, and 16QAM or 64QAM or 256QAM corresponds to the second transformation matrix; or, the encoding rate is less than a preset threshold corresponding to the first transformation matrix, The coding rate is greater than or equal to the preset threshold corresponding to the second transformation matrix.
  • the first indication information is carried in downlink control information DCI.
  • the transceiver module 801 is further configured to: receive second indication information from the network device, where the second indication information is used to indicate at least one second MCS; and the terminal device determines according to the second indication information The correspondence between the MCS and the transformation matrix.
  • the second indication information is carried in radio resource control RRC layer signaling.
  • the terminal device 80 is presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may refer to a specific ASIC, circuit, processor and memory that execute one or more software or firmware programs, integrated logic circuits, and / or other devices that can provide the above functions.
  • the terminal device 80 may adopt the form shown in FIG. 2.
  • the processor 201 in FIG. 2 may call the computer stored in the memory 203 to execute instructions, so that the terminal device 80 executes the method for receiving information in the foregoing method embodiment.
  • the functions / implementation processes of the transceiver module 801 and the determination module 802 in FIG. 8 may be implemented by the processor 201 in FIG. 2 calling the computer execution instructions stored in the memory 203.
  • the function / implementation process of the determination module 802 in FIG. 8 can be implemented by the processor 201 in FIG. 2 calling a computer execution instruction stored in the memory 203, and the function / implementation process of the transceiver module 801 in FIG. 2 to achieve the communication interface 204.
  • the terminal device 80 provided in this embodiment can execute the above-mentioned method for receiving information, for the technical effects that can be obtained, reference may be made to the above-mentioned method embodiments, and details are not repeated herein.
  • an embodiment of the present application further provides an apparatus (for example, the apparatus may be a chip system).
  • the apparatus includes a processor for supporting the terminal device to implement the foregoing method for receiving a message, for example, receiving the first Indication information, and determine the target transformation matrix according to the first indication information.
  • the device also includes a memory.
  • the memory is used to store necessary program instructions and data of the terminal device. Of course, the memory may not be in the device.
  • the device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers and data centers that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)) or the like.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a DVD
  • a semiconductor medium for example, a solid state disk (SSD)

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

Abstract

La présente invention a trait au domaine des communications sans fil, et des modes de réalisation de l'invention concernent un procédé, un dispositif et un système de réception d'informations, destinés à être utilisés pour sélectionner de façon souple une matrice de transformation, ce qui améliore davantage la souplesse de communication et optimise un procédé de transformation linéaire par un signal, afin d'obtenir un compromis entre la complexité et la fiabilité de transmission. Dans le procédé selon l'invention : un dispositif de réseau détermine des premières informations d'indication, ces premières informations d'indication étant destinées à indiquer une matrice de transformation cible, la matrice de transformation cible étant une matrice dans un ensemble de matrices de transformation ; et le dispositif de réseau envoie les premières informations d'indication à un dispositif terminal.
PCT/CN2018/116255 2018-11-19 2018-11-19 Procédé, dispositif et système de réception d'informations WO2020102947A1 (fr)

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CN201880098979.7A CN112913154B (zh) 2018-11-19 2018-11-19 目标变换矩阵的指示方法、设备、系统及存储介质

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