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WO2022000345A1 - Procédé et appareil de transmission de signal - Google Patents

Procédé et appareil de transmission de signal Download PDF

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Publication number
WO2022000345A1
WO2022000345A1 PCT/CN2020/099591 CN2020099591W WO2022000345A1 WO 2022000345 A1 WO2022000345 A1 WO 2022000345A1 CN 2020099591 W CN2020099591 W CN 2020099591W WO 2022000345 A1 WO2022000345 A1 WO 2022000345A1
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WIPO (PCT)
Prior art keywords
mcs
wireless signal
matrix
association relationship
generation parameter
Prior art date
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Ceased
Application number
PCT/CN2020/099591
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English (en)
Chinese (zh)
Inventor
金爵宁
汪浩
关文康
花梦
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2020/099591 priority Critical patent/WO2022000345A1/fr
Priority to CN202080014828.6A priority patent/CN114128179A/zh
Publication of WO2022000345A1 publication Critical patent/WO2022000345A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a signal transmission method and device.
  • the signal transmission model of the point-to-point multiple-input multiple-output (Multiple-Input Multiple Output, MIMO) channel can be expressed as the following form:
  • n S represents the number of parallel sub-channels that do not interfere with each other or the number of data streams
  • n R represents the number of receiving antennas
  • n T represents the number of transmitting antennas.
  • the optimal precoding matrix P opt to achieve the channel capacity has the following structure:
  • V H is the right singular matrix obtained after the singular value decomposition of the channel matrix H, namely ⁇ WF is the power distribution (diagonal) matrix obtained by the water-filling algorithm.
  • the physical meaning of the optimal precoding matrix P opt is: 1) Change the channel matrix H into n S parallel sub-channels that do not interfere with each other through V H , wherein each diagonal element of ⁇ H represents a parallel sub-channel; 2) The water-filling power is allocated according to the channel strength of the parallel sub-channel, where the square of each diagonal element of ⁇ WF represents the power allocated to the sub-channel. At high signal-to-noise ratios, according to the nature of the water-filling algorithm, the optimal power allocation is approximately to allocate the same power to each sub-channel, ie ⁇ WF ⁇ I.
  • the optimal precoding matrix at this time can be simplified to the following form:
  • each component of the transmitted symbol x is selected from a set of discrete constellations.
  • n S ⁇ 4 all sub-channels transmit the same codeword, that is, use the same modulation constellation and channel coding. At this time, the system performance is determined by the worst sub-channel, therefore, the optimal precoding matrix in actual communication cannot obtain better spatial diversity gain.
  • QPSK Quadrature Phase Shift Keying
  • P opt I.
  • the purpose of the embodiments of the present application is to provide a signal transmission method and apparatus for providing a precoding matrix to obtain better spatial diversity gain.
  • the communication device may be a wireless communication device, or may be a part of a device in the wireless communication device, such as an integrated circuit product such as a system chip or a communication chip.
  • the wireless communication device may be a computer device that supports wireless communication functionality.
  • the wireless communication device may be a terminal such as a smart phone, or may be a wireless access network device such as a base station.
  • a system-on-chip may also be referred to as a system on chip (system on chip, SoC), or simply referred to as a SoC chip.
  • the communication chip may include a baseband processing chip and a radio frequency processing chip. Baseband processing chips are also sometimes referred to as modems or baseband chips.
  • the radio frequency processing chip is also sometimes referred to as a radio frequency transceiver (transceiver) or radio frequency chip.
  • some or all of the communication chips may be integrated inside the SoC chip.
  • the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip.
  • a method including: a first device generates a wireless signal according to a precoding matrix; and the first device sends the wireless signal to the second device.
  • the precoding matrix is determined according to the channel matrix H between the first and second devices corresponding to a right singular matrix V H and V P orthogonal matrix; V P is the orthogonal matrix according to the radio
  • the modulation coding strategy of the signal is determined by MCS.
  • the precoding matrix from the inter-sub-channel interleaving is implemented according to the determined orthogonal matrices V P, V P is an orthogonal matrix effect without increasing transmit power of the premise, thereby realizing the transmission signal into different sub-mix
  • space diversity gain is introduced to reduce the channel quality difference of each layer at the receiving end.
  • the first device includes a first association relationship, and the first association relationship is an association relationship between the MCS and a generation parameter; the generation parameter is used to determine the orthogonal matrix. V P; the first device determining in accordance with said orthogonal matrix V P of the first generation parameter in the association relationship with the associated wireless signal MCS.
  • the generation parameter associated with the MCS is an angle value that minimizes the block error rate BLER of the wireless signal when the wireless signal is modulated by the MCS.
  • the first device includes a second association relationship
  • the second association relationship is an association relationship between MCS, a demodulation algorithm type, and a generation parameter
  • the generation parameter is used to determine said orthogonal matrix V P;
  • the first device determines the orthogonal matrix V according to the generation parameter associated with the MCS of the wireless signal and the type of demodulation algorithm used by the second device to demodulate the wireless signal in the second association relationship P.
  • the generation parameter associated with the type of the demodulation algorithm used by the MCS and the second device to demodulate the wireless signal is that the wireless signal is modulated by the MCS, and the second device is modulated by the MCS.
  • the angle value when the block error rate BLER of the wireless signal is minimized.
  • the right singular matrix V H is fed back from the second device; or, the right singular matrix V H is determined by the first device performing channel estimation according to channel reciprocity. .
  • the MCS of the wireless signal comes from the second device; or, when the first device is a network device, the MCS of the wireless signal comes from the second device. Determined by the first device.
  • the present application further provides a communication device having the method provided in the first aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or units corresponding to the above-mentioned functions.
  • the communication apparatus includes: a processor configured to support the communication apparatus to perform the corresponding functions of the first device in the communication method shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes a communication interface, where the communication interface is used to support communication between the communication apparatus and the second device or the like.
  • the communication device includes corresponding functional units, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the structure of the communication apparatus includes a processing unit and a communication unit, and these units can perform the corresponding functions in the above method examples.
  • these units can perform the corresponding functions in the above method examples.
  • a method including: a second device receives a wireless signal from a first device; the wireless signal is generated according to a precoding matrix; wherein the precoding matrix is based on the first device and the second channel matrix H corresponding to the right singular matrix V H and V P defined between orthogonal matrices device; said orthogonal matrix V P is determined based on the modulation coding strategy of the wireless signal MCS; the second device in accordance with the The precoding matrix decodes the wireless signal.
  • the precoding matrix is determined according to the orthogonal matrix.
  • the function of the orthogonal matrix is to realize the interleaving between sub-channels without increasing the transmit power, so as to realize the mixing of the transmitted signals on different sub-channels and introduce The space diversity gain is improved, and the channel quality difference of each layer at the receiving end is reduced.
  • the first device includes a first association relationship, and the first association relationship is an association relationship between the MCS and a generation parameter; the generation parameter is used to determine the orthogonal matrix. V P; said second device determining in accordance with said orthogonal matrix V P of the first generation parameter in the association relationship with the associated wireless signal MCS.
  • the generation parameter associated with the MCS is an angle value that minimizes the block error rate BLER of the wireless signal when the wireless signal is modulated by the MCS.
  • the first device includes a second association relationship
  • the second association relationship is an association relationship between MCS, a demodulation algorithm type, and a generation parameter
  • the generation parameter is used to determine said orthogonal matrix V P;
  • the second device determines the orthogonal matrix V according to the generation parameter associated with the MCS of the wireless signal and the type of demodulation algorithm used by the second device to demodulate the wireless signal in the second association relationship P.
  • the generation parameter associated with the type of the demodulation algorithm used by the MCS and the second device to demodulate the wireless signal is that the wireless signal is modulated by the MCS, and the second device is modulated by the MCS.
  • the angle value when the block error rate BLER of the wireless signal is minimized.
  • the right singular matrix is determined by the second device according to channel estimation.
  • the second device when the first device is a terminal device, the second device sends the MCS of the wireless signal to the first device.
  • the present application further provides a communication device having the method provided in the third aspect.
  • the communication device may be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units or units corresponding to the above functions.
  • the communication apparatus includes: a processor configured to support the communication apparatus to perform the corresponding functions of the second device in the communication method shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication apparatus further includes a communication interface, and the communication interface is used to support communication between the communication apparatus and the first device or the like.
  • the communication device includes corresponding functional units, which are respectively used to implement the steps in the above method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the structure of the communication apparatus includes a processing unit and a communication unit, and these units can perform the corresponding functions in the above method examples.
  • these units can perform the corresponding functions in the above method examples.
  • the present application also provides a communication device, including: a processor and a memory;
  • the memory is used to store program instructions
  • the processor is configured to execute program instructions stored in the memory, so as to implement any possible method in the first aspect or the second aspect.
  • the present application also provides a communication device, comprising: a processor and an interface circuit;
  • the interface circuit is used to access a memory, and the memory stores program instructions
  • the processor is configured to access the memory through the interface circuit, and execute program instructions stored in the memory, so as to implement any possible method in the first aspect or the second aspect.
  • the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer storage medium, and when a computer reads and executes the computer-readable instructions, the communication device is made to perform any of the above possible designs. Methods.
  • the present application provides a computer program product, which, when a computer reads and executes the computer program product, causes a communication device to execute the method in any of the above possible designs.
  • the present application provides a chip, which is connected to a memory and used to read and execute a software program stored in the memory, so as to implement the method in any of the above possible designs.
  • the present application provides a system comprising the communication device of the second aspect and the communication device of the third aspect.
  • FIG. 1 is a schematic diagram of a scenario applicable to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a signal transmission method provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of wireless signal transmission according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of wireless signal transmission according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Division Duplex Time Division Duplex
  • TDD Time Division Duplex
  • New Radio New Radio
  • the terminal device may be a device with a wireless transceiver function or a chip that can be installed in any device, and may also be referred to as user equipment (user equipment, UE), an access terminal, a subscriber unit, or a subscriber station. , mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment.
  • user equipment user equipment
  • UE user equipment
  • access terminal a subscriber unit
  • subscriber station mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, industrial Wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety Wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • a virtual reality virtual reality, VR
  • AR augmented reality
  • industrial Wireless terminal in industrial control wireless terminal in self driving
  • wireless terminal in remote medical wireless terminal in smart grid
  • transportation safety Wireless terminals in smart cities wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, and so on.
  • the network device may be a next generation base station (next Generation node B, gNB) in the NR system, or an evolved base station (evolutional node B, eNB) in the LTE system, or the like.
  • next Generation node B gNB
  • evolutional node B evolutional node B
  • FIG. 1 it is a schematic diagram of a scenario applicable to the embodiment of the present application.
  • the terminal device 102 is connected to the network device 101 .
  • the network device 101 can determine the precoding matrix used when sending the downlink signal to the terminal device 102 by using the method provided by the embodiment of the present application; correspondingly, the terminal device 102 can determine to send the downlink signal to the network device 101 by using the method provided by the embodiment of the present application.
  • the precoding matrix used for uplink signals The following describes in detail with reference to the accompanying drawings.
  • FIG. 2 a schematic flowchart of a signal transmission method provided by an embodiment of the present application is shown.
  • the method includes:
  • Step 201 the first device generates a wireless signal according to the precoding matrix
  • the precoding matrix is determined according to the channel matrix H between the first and second devices corresponding to a right singular matrix V H and V P orthogonal matrix; V P is the orthogonal matrix according to the radio
  • the modulation coding strategy Modulation Coding Scheme, MCS
  • the precoding matrix P may satisfy the following form:
  • Step 202 The first device sends the wireless signal to the second device.
  • Step 203 The second device receives the wireless signal from the first device.
  • the wireless signal is generated according to a precoding matrix
  • Step 204 The second device decodes the wireless signal according to the precoding matrix.
  • the precoding matrix from the inter-sub-channel interleaving is implemented according to the determined orthogonal matrices V P, V P is an orthogonal matrix effect without increasing transmit power of the premise, thereby realizing the transmission signal into different sub-mix
  • space diversity gain is introduced to reduce the channel quality difference of each layer at the receiving end.
  • the types of the first device and the second device are not limited in this embodiment of the present application.
  • the first device may be a terminal device, the second device may be a network device, and the wireless signal sent by the first device is an uplink signal; or the first device may be a network device, and the second device may be a terminal device, At this time, the wireless signal sent by the first device is a downlink signal.
  • FIG. 3 a schematic diagram of wireless signal transmission according to an embodiment of the present application is shown.
  • the process shown in Figure 3 includes:
  • Step 301 The network device indicates the MCS to the terminal device.
  • the shown MCS is the MCS used by the terminal device to send wireless signals to the network device.
  • the network device may also configure the transmission mode of the terminal device.
  • the MCS used for each stream is the same, and the specific process will not be repeated.
  • Step 302 The terminal device determines the right singular matrix V H corresponding to the channel matrix H .
  • the network device may perform channel estimation on the channel between the network device and the terminal device to obtain the channel matrix H.
  • the network device may perform singular value decomposition on the channel matrix to obtain the right singular matrix V H , and indicate the right singular matrix V H to the terminal device.
  • the terminal device may perform channel estimation according to channel reciprocity to obtain the channel matrix H, and then may perform singular value decomposition on the channel matrix to obtain the right singular matrix V H .
  • Step 303 the terminal determines an orthogonal matrix V P, and determine a precoding matrix in accordance with the right singular matrix V H and orthogonal matrices V P.
  • the terminal may determine an orthogonal matrix V P according to MCS.
  • the terminal device may comprise a first relationship, the first relationship is a relationship between the MCS and the generation parameter; generating a parameter for generating an orthogonal matrix V P.
  • the terminal device may determine an orthogonal matrix V P according to the first association relationship and MCS acquired from the network device associated to the generation parameter.
  • the orthogonal matrix V P satisfy the following form:
  • the number of data streams included in the signal, the angle ⁇ ij is a generation parameter, the angle ⁇ ij is determined according to the MCS, or the angle ⁇ ij is determined according to the MCS and the type of demodulation algorithm that demodulates the wireless signal.
  • MCS Generate parameters MCS1 ⁇ 1 MCS2 ⁇ 2 MCS3 ⁇ 3 MCS4 ⁇ 4 MCS5 ⁇ 5
  • the terminal device can substitute the generation parameter ⁇ 3 into formula (5), thereby determining the positive value. deposit matrix V P.
  • the generation parameter associated with each MCS includes an angle ⁇ ij ; when n S is greater than 2, the generation parameter associated with each MCS includes multiple angles ⁇ ij .
  • the first association relationship is pre-configured in the terminal device, and the first association relationship may be determined by a device such as a terminal device or a network device, which is not limited in this embodiment of the present application.
  • all MCSs that may be used may be predetermined.
  • the generation parameter that minimizes the Block Error Rate (BLER) of the wireless signal as the generation parameter associated with this MCS. According to the above method, the generation parameters of each MCS association can be determined, thereby determining the first association relationship.
  • the terminal may determine an orthogonal matrix V P demodulation algorithm according to the type of network device and MCS demodulated radio signal.
  • the type of the demodulation algorithm used by the network device to demodulate the wireless signal may be indicated by the network device to the terminal device, and the terminal device may also determine the type of the demodulation algorithm used by the network device to demodulate the wireless signal in other ways. limited.
  • the terminal device may comprise a second relationship, the second relationship is the MCS, the association between the demodulation type algorithm generation parameter; generating a parameter for generating an orthogonal matrix V P.
  • the terminal device may determine an orthogonal matrix V P generated according to parameters associated with said second demodulating association acquired from the network device to the MCS, and a network device of the wireless signal demodulation algorithm type.
  • MCS Demodulation Algorithm Type Generate parameters MCS1 Type 1 ⁇ 1 MCS1 Type 2 ⁇ 2 MCS2 Type 1 ⁇ 3 MCS2 Type 2 ⁇ 4
  • the generation parameter is ⁇ 2
  • the terminal device can use the generation parameter ⁇ 2 is substituted into equation (5) may be determined orthogonal matrices V P.
  • the second association relationship is pre-configured in the terminal device, and the second association relationship may be determined by a device such as a terminal device or a network device, which is not limited in this embodiment of the present application.
  • a device such as a terminal device or a network device, which is not limited in this embodiment of the present application.
  • all possible MCSs and demodulation algorithm types that may be used may be predetermined.
  • the wireless signal will be modulated with this MCS, and the type of demodulation algorithm will be used to make the wireless signal
  • the minimum generation parameter of the BLER of the signal as the generation parameter associated with this MCS and the type of demodulation algorithm.
  • the generation parameters associated with each type of MCS and the demodulation algorithm can be determined, thereby determining the second association relationship.
  • Step 304 The terminal device uses the precoding matrix to send a wireless signal to the network device.
  • Step 305 The network device receives the wireless signal from the terminal device, and decodes the wireless signal according to the precoding matrix.
  • the network device can determine the precoding matrix in the same way as the terminal device.
  • the precoding matrix determined by the network device for decoding the wireless signal is the same as the precoding matrix used by the terminal device to send the wireless signal, and the specific process is not the same. Repeat.
  • the present application provides the orthogonal matrices V P sub-channel interleaving effect is achieved by introducing a certain space on the inter-stream interference embodiment.
  • the Signal to Interference Ratio (SIR) between the incoming streams can be defined as
  • SIRs of different strengths need to be introduced, so that the receiver of the network device has the highest probability of solving (x 1 , x 2 ) at the same time.
  • FIG. 4 a schematic diagram of wireless signal transmission according to an embodiment of the present application is shown.
  • the process shown in Figure 4 includes:
  • Step 401 The network device determines the right singular matrix V H corresponding to the channel matrix H .
  • the network device obtains the right singular matrix V H indicated by the terminal device.
  • the terminal device may perform channel estimation on the channel between the terminal device and the network device to obtain the channel matrix H.
  • the terminal device can perform singular value decomposition on the channel matrix to obtain the right singular matrix V H , and indicate the right singular matrix V H to the network device.
  • the network device may perform channel estimation according to channel reciprocity to obtain the channel matrix H, and then may perform singular value decomposition on the channel matrix to obtain the right singular matrix V H .
  • Step 402 the network device determines an orthogonal matrix V P, and determine a precoding matrix in accordance with the right singular matrix V H and orthogonal matrices V P.
  • the network device may be determined in accordance with an orthogonal matrix V P MCS.
  • the network device may include a first association, the first association relationship and the relationship between the MCS generation parameter; generating a parameter for generating an orthogonal matrix V P.
  • Network device may determine an orthogonal matrix generation parameter V P according to the first association relationship associated with the MCS.
  • the MCS is determined by the network device. Before sending the wireless signal to the terminal device, the network device can determine the MCS to be used. The specific determination is not limited in the embodiment of the present application.
  • the network device may determine an orthogonal matrix V P demodulation algorithm according to the type of terminal device and the MCS demodulated radio signal.
  • the type of the demodulation algorithm used by the terminal device to demodulate the wireless signal may be indicated by the terminal device to the network device, and the network device may also determine the type of the demodulation algorithm used by the terminal device to demodulate the wireless signal in other ways. limited.
  • the network device may include a second relationship, the second relationship is the MCS, the association between the demodulation type algorithm generation parameter; generating a parameter for generating an orthogonal matrix V P.
  • Network device may determine an orthogonal matrix V P generated according to parameters associated with the radio signal demodulation algorithm type of the second demodulating association with the MCS, and network equipment, the specific process may be described with reference to the foregoing, not described herein again .
  • Step 403 The network device indicates the MCS to the terminal device.
  • the MCS shown is the MCS used by the network device to send wireless signals to the terminal device.
  • the network device can also indicate the precoding matrix to the terminal device. If the network device does not indicate the precoding matrix, the terminal device can determine the precoding matrix using the same method as the network device, and the specific process will not be repeated.
  • Step 404 The network device uses the precoding matrix to send a wireless signal to the terminal device.
  • Step 405 The terminal device receives the wireless signal from the network device, and decodes the wireless signal according to the precoding matrix.
  • the precoding matrix is obtained by combining the right singular matrix and the orthogonal matrix of the channel matrix. Since the orthogonal matrix can realize the mixing of the transmitted signals into different sub-channels, the spatial diversity gain is introduced, and the channel quality difference of each layer at the receiving end is reduced, so that the transmitted signals are spatially interleaved between the sub-channels, improving the system. space diversity gain.
  • the methods provided by the embodiments of the present application are respectively introduced from the perspective of interaction between various devices.
  • the first device or the second device may include a hardware structure and/or a software module, and implement the above in the form of a hardware structure, a software module, or a hardware structure plus a software module. each function. Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in each embodiment of the present application may be integrated into one processor, or may exist physically alone, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.
  • an embodiment of the present application further provides an apparatus 500 for implementing the function of the first device or the second device in the above method.
  • the apparatus may be a software module or a system-on-chip.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the apparatus 500 may include: a processing unit 501 and a communication unit 502 .
  • the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, respectively configured to perform the sending and receiving steps of the first device or the second device in the above method embodiments.
  • a communication unit may also be referred to as a transceiver, transceiver, transceiver, or the like.
  • the processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the communication unit 502 may be regarded as a receiving unit, and the device for implementing the transmitting function in the communication unit 502 may be regarded as a transmitting unit, that is, the communication unit 502 includes a receiving unit and a transmitting unit.
  • a communication unit may also sometimes be referred to as a transceiver, transceiver, or transceiver circuit, or the like.
  • the receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like.
  • the transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • the communication unit 502 is configured to perform the sending operation and the receiving operation of the first device in the method embodiment shown in FIG. 2 or FIG. 3 or FIG. 4
  • the processing unit 501 is configured to perform the aforementioned FIG. 2 or FIG. 3 or FIG.
  • the first device performs other operations except the transceiving operation.
  • the communication unit 502 is configured to perform the sending operation and the receiving operation of the second device in the method embodiment shown in FIG. 2 or FIG. 3 or FIG. In the shown method embodiment, the second device performs other operations except the transceiving operation.
  • FIG. 6 shows an apparatus 600 provided by an embodiment of the present application, and the apparatus shown in FIG. 6 may be an implementation manner of a hardware circuit of the apparatus shown in FIG. 5 .
  • the communication apparatus can be applied to the flow chart shown above to perform the functions of the first device or the second device in the above method embodiments. For convenience of explanation, FIG. 6 only shows the main components of the communication device.
  • the apparatus 600 may also include at least one memory 603 for storing program instructions and/or data.
  • Memory 603 is coupled to processor 601 .
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 601 may cooperate with memory 603 .
  • Processor 601 may execute program instructions stored in memory 603 . At least one of the at least one memory may be included in the processor.
  • the apparatus 600 shown in FIG. 6 includes at least one processor 601 and a communication interface 602 , and the processor 601 is configured to execute the instructions or programs stored in the memory 603 .
  • the processor 601 is used to perform the operations performed by the processing unit 501 in the above-mentioned embodiments
  • the communication interface 602 is used to perform the operations performed by the communication unit 502 in the above-mentioned embodiments.
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the transceiver when the communication interface is a transceiver, the transceiver may include an independent receiver and an independent transmitter; it may also be a transceiver integrating a transceiver function, or a communication interface.
  • the apparatus 600 may also include a communication line 604 .
  • the communication interface 602, the processor 601 and the memory 603 can be connected to each other through a communication line 604;
  • the communication line 604 can be a peripheral component interconnect (PCI for short) bus or an extended industry standard architecture (extended industry standard architecture). , referred to as EISA) bus and so on.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the communication line 604 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.
  • Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored.
  • the program When the program is executed by a processor, the program can implement the same method as the first one in the embodiment shown in FIG. 3 or FIG. 4 provided by the foregoing method embodiment.
  • Device-related processes When the program is executed by a processor, the program can implement the same method as the first one in the embodiment shown in FIG. 3 or FIG. 4 provided by the foregoing method embodiment. Device-related processes.
  • Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored.
  • the program When the program is executed by a processor, the program can implement the second method in the embodiment shown in FIG. 3 or FIG. 4 provided by the foregoing method embodiment.
  • Device-related processes When the program is executed by a processor, the program can implement the second method in the embodiment shown in FIG. 3 or FIG. 4 provided by the foregoing method embodiment. Device-related processes.
  • An embodiment of the present application further provides a computer program product including an instruction, when the instruction is executed, the method of the first device in the method embodiment shown in FIG. 3 or FIG. 4 is executed.
  • An embodiment of the present application further provides a computer program product including an instruction, when the instruction is executed, the method of the second device in the method embodiment shown in FIG. 3 or FIG. 4 is executed.
  • An embodiment of the present application further provides a chip, including a processor, which is coupled to a memory and configured to execute a computer program or instruction stored in the memory.
  • a processor which is coupled to a memory and configured to execute a computer program or instruction stored in the memory.
  • the processor executes the computer program or instruction, Execute the method of the first device in the method embodiment shown in FIG. 3 or FIG. 4 .
  • An embodiment of the present application further provides a chip, including a processor, which is coupled to a memory and configured to execute a computer program or instruction stored in the memory.
  • a processor which is coupled to a memory and configured to execute a computer program or instruction stored in the memory.
  • the processor executes the computer program or instruction, Execute the method of the second device in the method embodiment shown in FIG. 3 or FIG. 4 .
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flows of the flowcharts and/or the block or blocks of the block diagrams.

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

Abstract

L'invention concerne un procédé et un appareil de transmission de signal. Le procédé comprend les étapes suivantes : un premier dispositif produit un signal sans fil selon une matrice de précodage, la matrice de précodage étant déterminée selon une matrice orthogonale et une matrice singulière droite correspondant à une matrice de canal entre le premier dispositif et un deuxième dispositif, et la matrice orthogonale est déterminée selon un schéma de modulation et de codage (MCS) du signal sans fil ; et le premier dispositif envoie le signal sans fil au deuxième dispositif. Au cours du procédé ci-dessus, la matrice de précodage est déterminée selon la matrice orthogonale ; la fonction de la matrice orthogonale est d'obtenir un entrelacement entre sous-canaux sans augmenter une puissance d'émission, ce qui mélange des signaux envoyés sur différents sous-canaux ; un gain de diversité spatiale est introduit, ce qui réduit une différence de qualité de canal de chaque couche d'une extrémité de réception.
PCT/CN2020/099591 2020-06-30 2020-06-30 Procédé et appareil de transmission de signal Ceased WO2022000345A1 (fr)

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CN202080014828.6A CN114128179A (zh) 2020-06-30 2020-06-30 一种信号传输方法及装置

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CN102594425A (zh) * 2012-02-20 2012-07-18 中国科学技术大学 一种适合双流数据传输的最小距离预编码方法
US8229017B1 (en) * 2007-12-13 2012-07-24 Marvell International Ltd. Transmit beamforming utilizing channel estimation matrix decomposition feedback in a wireless MIMO communication system
CN103634071A (zh) * 2012-08-27 2014-03-12 华为技术有限公司 一种预编码矩阵选择方法、装置和系统
EP2725731A1 (fr) * 2011-09-16 2014-04-30 Nippon Telegraph And Telephone Corporation Procédé de communication sans fil et dispositif de station de base
CN106982088A (zh) * 2017-04-13 2017-07-25 南京邮电大学 3d mimo系统中一种基于csi‑rs端口的多流传输方法

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CN101471707B (zh) * 2007-12-28 2013-09-11 华为技术有限公司 时分双工多输入多输出的下行波束形成方法、装置和系统
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US8229017B1 (en) * 2007-12-13 2012-07-24 Marvell International Ltd. Transmit beamforming utilizing channel estimation matrix decomposition feedback in a wireless MIMO communication system
EP2725731A1 (fr) * 2011-09-16 2014-04-30 Nippon Telegraph And Telephone Corporation Procédé de communication sans fil et dispositif de station de base
CN102594425A (zh) * 2012-02-20 2012-07-18 中国科学技术大学 一种适合双流数据传输的最小距离预编码方法
CN103634071A (zh) * 2012-08-27 2014-03-12 华为技术有限公司 一种预编码矩阵选择方法、装置和系统
CN106982088A (zh) * 2017-04-13 2017-07-25 南京邮电大学 3d mimo系统中一种基于csi‑rs端口的多流传输方法

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