WO2023024875A1 - 一种测量信道信息的方法、网络设备、中继设备及终端 - Google Patents

一种测量信道信息的方法、网络设备、中继设备及终端 Download PDF

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Publication number
WO2023024875A1
WO2023024875A1 PCT/CN2022/110648 CN2022110648W WO2023024875A1 WO 2023024875 A1 WO2023024875 A1 WO 2023024875A1 CN 2022110648 W CN2022110648 W CN 2022110648W WO 2023024875 A1 WO2023024875 A1 WO 2023024875A1
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WIPO (PCT)
Prior art keywords
configuration information
channel
terminal
forwarding
network device
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PCT/CN2022/110648
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English (en)
French (fr)
Inventor
颜矛
袁世通
刘凤威
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华为技术有限公司
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Publication of WO2023024875A1 publication Critical patent/WO2023024875A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the technical field of communication, in particular to a method for measuring channel information, a network device, a relay device and a terminal.
  • the relay can be used to assist the communication between the base station and the terminal.
  • a relay method with relatively low complexity is that the relay directly amplifies the received signal and then forwards or reflects the received signal. According to the direction of communication, it can be further divided into relay communication with a direct link between the sending device and the receiving device and Relay communication where there is no direct link between the sending device and the receiving device.
  • CSI-RS channel status information reference signal
  • Sounding reference signal Sounding reference signal
  • the technical problem to be solved by the embodiment of the present application is to provide a method for measuring channel information, a network device, a relay device and a terminal, so as to solve the problem of measuring a relay channel.
  • the embodiments of the present application provide a method for measuring channel information, which may include:
  • the network device configures configuration information of reference signals used to measure channel information
  • the configuration information includes an amplification and forwarding coefficient
  • the network device configures the reference signal used for relay channel measurement, and instructs the sending device to send the reference signal at T times greater than or equal to 2 through the configuration information of the reference signal, and instructs the relay device to use different
  • the forwarding matrix is forwarded to the receiving device, so that the receiving device can perform combined estimation based on the reference signals received at different times, and obtain the corresponding channel measurement results of the relay channel including direct links and relay links, realizing the relay communication scenario
  • the accurate estimation of the channel under the condition is beneficial to the performance test and optimization design in the relay communication scenario.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the receiving device can combine the reference signals received at different times for combined estimation to obtain the measurement result of the relay channel.
  • the method further includes:
  • the network device sends the configuration information to the terminal.
  • embodiments of the present application provide a method for measuring channel information, which may include:
  • the relay device receives configuration information sent by the network device, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • embodiments of the present application provide a method for measuring channel information, which may include:
  • the terminal acquires configuration information, where the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the relay channel includes a first channel and/or a second channel
  • the first channel is a channel through which the network device and the terminal have a direct link
  • the second channel is a channel in which there is no direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the acquiring configuration information by the terminal includes:
  • the terminal receives the configuration information sent by the network device
  • the terminal receives the configuration information forwarded by the relay device.
  • the method further includes:
  • the terminal sends the measurement result to the network device.
  • a network device which may include:
  • a processing unit configured to configure configuration information of a reference signal used to measure channel information
  • a transceiver unit configured to send the configuration information to the relay device, where the configuration information includes an amplification and forwarding coefficient; send the reference signal to the relay device at T times, where T is greater than or equal to 2; wherein, The amplified forwarding coefficient is used to instruct the relay device to forward the reference signal to the terminal using different forwarding matrices within the T times.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit is further configured to send the configuration information to the terminal.
  • a relay device which may include:
  • the transceiver unit is configured to receive the configuration information sent by the network device, the configuration information is the configuration information of the reference signal used to measure channel information, and the configuration information includes the amplification and forwarding coefficient; receiving the configuration information sent by the network device at T times The reference signal of T is greater than or equal to 2;
  • a processing unit configured to instruct the transceiving unit to forward the reference signal to the terminal using different forwarding matrices within the T times according to the amplified forwarding coefficient.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • a terminal which may include:
  • a transceiver unit configured to obtain configuration information, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the transceiver unit is also used to receive the reference signal forwarded by the relay device using different forwarding matrices within T times according to the amplified forwarding matrix coefficient, where T is greater than or equal to 2;
  • a processing unit configured to measure a relay channel according to the amplified forwarding coefficient, the relay channel includes a first channel and/or a second channel, and the first channel is a direct link between the network device and the terminal.
  • the second channel is a channel that does not have a direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit is specifically configured to:
  • the transceiver unit is further configured to send the measurement result to the network device.
  • the embodiments of the present application provide a method for measuring channel information, which may include:
  • the network device configures configuration information of reference signals used to measure channel information
  • the configuration information includes an amplification and forwarding coefficient
  • the amplified forwarding coefficient is used to instruct the relay device to use different forwarding matrices to forward the reference signal sent by the terminal to the network device within T times, and T is greater than or equal to 2;
  • the relay channel includes a first channel and/or a second channel
  • the first channel is a channel through which the network device and the terminal have a direct link
  • the second channel is a channel in which there is no direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the method further includes:
  • the network device sends the configuration information to the terminal.
  • the embodiments of the present application provide a method for measuring channel information, which may include:
  • the relay device receives configuration information sent by the network device, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the embodiments of the present application provide a method for measuring channel information, which may include:
  • the terminal acquires configuration information, where the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the network device forwards the reference signal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the acquiring configuration information by the terminal includes:
  • the terminal receives the configuration information sent by the network device
  • the terminal receives the configuration information forwarded by the relay device.
  • the method further includes:
  • the terminal sends the measurement result to the network device.
  • the embodiment of the present application provides a network device, including:
  • a processing unit configured to configure configuration information of a reference signal used to measure channel information
  • a transceiver unit configured to send the configuration information to the relay device, where the configuration information includes an amplification and forwarding coefficient
  • the amplified forwarding coefficient is used to instruct the relay device to use different forwarding matrices to forward the reference signal sent by the terminal to the network device within T times, and T is greater than or equal to 2;
  • the processing unit is further configured to measure a relay channel according to the amplifying and forwarding coefficient, the relay channel includes a first channel and/or a second channel, and the first channel is a direct channel between the network device and the terminal.
  • the second channel is a channel of a direct link, and there is no channel of a direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit is also used for:
  • the network device sends the configuration information to the terminal.
  • the embodiment of the present application provides a relay device, including:
  • the transceiver unit is configured to receive configuration information sent by the network device, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient; receiving the configuration information sent by the terminal at T times Reference signal, T is greater than or equal to 2;
  • a processing unit configured to instruct the transceiving unit to forward the reference signal to the network device using different forwarding matrices within the T times according to the amplified forwarding coefficient.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the embodiment of the present application provides a terminal, including:
  • a transceiver unit configured to obtain configuration information, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • a processing unit configured to instruct the transceiving unit to send the reference signal to the relay device at T times, where T is greater than or equal to 2; wherein the amplification and forwarding coefficient is used to instruct the relay device to The reference signal is forwarded to the network device by using different forwarding matrices within T times.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit is specifically configured to:
  • the transceiver unit is also used for:
  • an apparatus in a thirteenth aspect, has the function of realizing the behavior of the network device, the relay device, or the terminal in the above method aspect, and includes corresponding means for performing the steps or functions described in the above method aspect.
  • the steps or functions may be realized by software, or by hardware (such as a circuit), or by a combination of hardware and software.
  • the above device includes one or more processors and a communication unit.
  • the one or more processors are configured to support the apparatus to execute the corresponding function of the network device in the above method. For example, configure the configuration information of the reference signal used to measure the relay channel.
  • the communication unit is used to support the device to communicate with other devices to realize receiving and/or sending functions. For example, the above configuration information is sent to the relay device, and the measurement result sent by the terminal is received.
  • the device may further include one or more memories, which are used to be coupled with the processor, and store necessary program instructions and/or data of the device.
  • the one or more memories can be integrated with the processor, or can be set separately from the processor. This application is not limiting.
  • the device may be a base station, gNB or TRP, etc.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input/output circuit or an interface of a communication chip.
  • the above device includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver or the input/output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the device executes any one of the first aspect or the first aspect A possible implementation manner, or a method implemented by the network device in the seventh aspect or any possible implementation manner in the seventh aspect.
  • the above device includes one or more processors and a communication unit.
  • the one or more processors are configured to support the apparatus to execute the corresponding function of the relay device in the above method.
  • the channel between the network device and the relay device, the channel between the terminal and the relay device, and the like are respectively measured according to the amplification and forwarding coefficient.
  • the communication unit is used to support the device to communicate with other devices to realize receiving and/or sending functions. For example, receiving configuration information sent by network devices, receiving reference signals sent by network devices or terminals and amplifying and forwarding them to terminals or network devices, or sending reference signals to network devices or terminals.
  • the device may further include one or more memories, the memories are used to be coupled with the processor, and store necessary program instructions and/or data of the network device.
  • the one or more memories can be integrated with the processor, or can be set separately from the processor. This application is not limiting.
  • the device may be a terminal device with a signal forwarding function, etc.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input/output circuit or an interface of a communication chip.
  • the above device includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver or the input/output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the device performs any possibility in the second aspect or the second aspect An implementation manner, or a method implemented by a relay device in the eighth aspect or any possible implementation manner of the eighth aspect.
  • the above device includes one or more processors and a communication unit.
  • the one or more processors are configured to support the apparatus to perform corresponding functions of the receiving device in the above method.
  • the relay channel and the like are measured according to the amplification and forwarding coefficient.
  • the communication unit is used to support the device to communicate with other devices to realize receiving and/or sending functions.
  • the receiving device when it is a terminal, it can receive configuration information sent by the network device or the relay device, receive the reference signal amplified and forwarded by the relay device, and send measurement results to the network device.
  • it may receive a reference signal amplified and forwarded by the relay device and the like.
  • the device may further include one or more memories, the memories are used to be coupled with the processor, and store necessary program instructions and/or data of the network device.
  • the one or more memories can be integrated with the processor, or can be set separately from the processor. This application is not limiting.
  • the device may be a terminal device or a wearable device, etc.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input/output circuit or an interface of a communication chip.
  • the above device includes a transceiver, a processor, and a memory.
  • the processor is used to control the transceiver or the input/output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the device performs any possibility in the third aspect or the third aspect An implementation manner, or a method implemented by the terminal in the ninth aspect or any possible implementation manner of the ninth aspect.
  • a system in a fourteenth aspect, includes the foregoing network device, relay device, and terminal.
  • a computer-readable storage medium for storing a computer program, the computer program including being used to implement the first aspect or any possible implementation manner in the first aspect, or the seventh aspect or the seventh aspect Instructions for the method in any one of the possible implementations of the aspect.
  • a computer-readable storage medium for storing a computer program, the computer program including any possible implementation manner for executing the second aspect or the second aspect, or the eighth aspect or the eighth aspect Instructions for the method in any one of the possible implementations of the aspect.
  • a computer-readable storage medium for storing a computer program
  • the computer program includes any possible implementation manner for executing the third aspect or the third aspect, or the ninth aspect or the ninth aspect Instructions for the method in any one of the possible implementations of the aspect.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, the computer executes any one of the first aspect or the first aspect one possible implementation manner, or the seventh aspect or the method in any one possible implementation manner of the seventh aspect.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, the computer is made to execute any one of the above-mentioned second aspect and the second aspect one possible implementation manner, or the eighth aspect or the method in any one possible implementation manner of the eighth aspect.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, the computer is made to execute any one of the third aspect and the third aspect one possible implementation manner, or the ninth aspect or the method in any one possible implementation manner of the ninth aspect.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for measuring channel information provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another method for measuring channel information provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another method for measuring channel information provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another method for measuring channel information provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of the composition of a network device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the composition of another network device provided by the embodiment of the present application.
  • FIG. 8 is a schematic diagram of the composition of a relay device provided in an embodiment of the present application.
  • FIG. 9 is a schematic composition diagram of another relay device provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the composition of a terminal provided in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of the composition of another terminal provided by the embodiment of the present application.
  • the 5G system is used for description in the embodiment of the present invention.
  • the implementation in the embodiment of the present invention is also applicable to existing communication systems and future higher-level communications such as 6G and 7G system, the embodiment of the present invention does not make any limitation.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application. It may include network device 10 , relay device 20 and terminal 30 .
  • the network device 10 is a device in a wireless network, and the network device 10 may be an NR base station (gNB), an evolved Node B (evolved Node B, eNB for short), a Node B (Node B, NB for short), a base station controller ( Base Station Controller, referred to as BSC), Base Transceiver Station (Base Transceiver Station, referred to as BTS), home base station (for example, Home evolved NodeB, or Home Node B, referred to as HNB), baseband unit (BaseBand Unit, referred to as BBU), etc.
  • gNB NR base station
  • eNB evolved Node B
  • Node B Node B
  • BTS Base Transceiver Station
  • HNB home base station
  • BBU baseband unit
  • the network device 10 can configure the configuration information of the reference signal, and send the configuration information to the relay device 20 .
  • the relay device 20 is a terminal device with a signal forwarding function, and can amplify the signal.
  • the relay device 20 may also shift the carrier frequency of the signal, or may demodulate the signal and then re-modulate it before forwarding, or may also reduce the noise of the signal before forwarding it. Therefore, the relay performed by the relay device 20 may be in any of the following forms: amplification and forwarding, demodulation and forwarding, frequency shifting and forwarding, and noise reduction forwarding.
  • the relay device 20 has another form, which is called a reflector, or a reflecting surface, or other possible names: intelligent reflecting surface (reconfigurable intelligent surface, RIS for short).
  • the relay device 20 can be regarded as a special form of terminal. In the embodiment of the present application, the relay device 20 may be configured to forward the reference signal sent by the sending device to the receiving device and the like according to the amplified forwarding matrix pattern or vector.
  • the terminal 30 may also be called user equipment (User Equipment, UE for short). It can include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video device, digital audio player (eg, MP3 player), camera, game console, or any other similarly functional device.
  • a terminal may also be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile Terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or some other appropriate term.
  • the terminal 30 can receive the configuration information sent by the network device 10, receive the reference signal sent by the relay device, and amplify and forward the matrix pattern according to the Measurement channel. Or as a sending device to send a reference signal to a relay device.
  • this embodiment of the present application only shows one relay device 20 and one terminal 30.
  • the number of relay devices 20 may be one or more, and the number of terminals 30 may be one or more , the embodiment of this application does not make any limitation.
  • the network device in FIG. Replace it with a slave relay (or called the next-level relay).
  • Figure 1 shows the scenario where there is a direct link F between the network device and the terminal. If F is removed, it is a scenario where there is no direct link between the network device and the terminal or the quality of the direct link is relatively poor scene.
  • the precoding matrix P and the equalization matrix B used to precode the transmission information and power allocation of the transmission power generally depend on H, G, F, A, and the goal of the relay communication system design is based on Based on all and part of the parameter information of H, G, F, A, a better precoding matrix P and equalization matrix B are designed. Or the goal of relay communication system design is to jointly design a better precoding matrix P, relay amplification matrix A, and equalization matrix B based on all and part of the parameter information of H, G, and F.
  • FIG. 2 is a schematic flowchart of a method for measuring channel information provided by an embodiment of the present application; it specifically includes the following steps:
  • the network device configures configuration information of a reference signal used to measure channel information.
  • step S200 (not shown in FIG. 2 ) may also be included, where the relay device accesses the network device.
  • the configuration information includes an amplified forwarding coefficient
  • the specific composition of the amplified forwarding coefficient may include an amplified forwarding matrix pattern, an amplified forwarding matrix set, a forwarding vector pattern, or a forwarding vector set, etc., which may be used to instruct the relay device
  • the reference signal is forwarded to the terminal by using different forwarding matrices within T times, where T is greater than or equal to 2.
  • the configuration information further includes various transmission parameters of the reference signal, such as beam information, time-frequency resources, power parameters, spatial correlation information, and the like.
  • the beam information may include beam information of base station transmission, relay transmission, relay reception, and UE reception of each reference signal.
  • the beam can be embodied as a spatial filter (spatial filter), a spatial filter (spatial filter) or a spatial parameter (spatial parameters).
  • the transmission beam transmission beam, Tx beam
  • the transmission beam can be a transmission spatial domain filter (spatial domain transmission filter), a spatial transmission filter (spatial domain transmit filter) or a spatial transmission parameter (spatial domain transmit parameter), etc.
  • the reception beam may be a receiving spatial domain filter (spatial domain receiver filter), a spatial domain receive filter (spatial domain receive filter) or a spatial domain receive parameter (spatial domain receive parameter), etc.
  • the beam may be represented by a transmission configuration indication (TCI for short) state, and further, may be represented by a quasi-co-location (QCL for short) relationship in the TCI.
  • TCI transmission configuration indication
  • QCL quasi-co-location
  • Each piece of configuration information corresponds to a relay transmission beam (forwarding beam) and a relay reception beam of the reference signal RS.
  • the network device sends the configuration information to the relay device.
  • the configuration information may be configured by a network device, delivered to the relay device, and may also be sent to the terminal, or sent to the terminal by the relay.
  • Configuration information can be carried on Physical Broadcast Channel (PBCH for short), Remaining minimum system information (RMSI for short), System Information Block (SIB for short) 1, SIB2, SIB3, media interface Any one of Media Access control-control element (MAC-CE for short), Downlink control information (DCI for short), Radio Resource Control (RRC for short) and system information or more.
  • PBCH Physical Broadcast Channel
  • RMSI Remaining minimum system information
  • SIB System Information Block
  • SIB System Information Block
  • SIB System Information Block
  • MAC-CE Media Access control-control element
  • DCI Downlink control information
  • RRC Radio Resource Control
  • the network device sends the reference signal to the relay device at T times.
  • the sending of reference signals at T times can be continuous sending or discontinuous sending, and one reference signal can occupy one or more symbols/slots. Alternatively, multiple reference signals may also be sent in one time slot.
  • the network device may send a channel status information reference signal (Channel status information reference signal, CSI-RS for short).
  • CSI-RS Channel status information reference signal
  • the sending of the CSI-RS may be periodic.
  • T CSI-RSs can be sent in the same time slot, or in adjacent time slots/adjacent downlink times (meaning that there is no uplink and downlink switching between multiple sending opportunities, thereby preventing channel or The state of the device changes, thereby affecting the channel estimation performance) and send T CSI-RSs.
  • the beam, power or bandwidth of the reference signal sent by the network device does not change during T times. Based on this method, it is beneficial to ensure the stability of the reference signal transmitted by the network equipment at different times, thereby preventing errors caused by transmission, and improving the estimation accuracy when the terminal measures channel information.
  • the relay device forwards the reference signal to the terminal by using different forwarding matrices.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the orthogonal mask is known by the receiving device, it is more convenient for the receiving device to perform channel estimation.
  • the beam of the reference signal received by the relay device does not change during T times; and/or, the beam of the relay device forwards the reference signal does not change during T times. Based on this method, it is beneficial to ensure the stability of the hardware of the relay device, thereby preventing errors caused by the relay, and improving the channel estimation accuracy.
  • the relay device receives the reference signal but does not forward the signal.
  • the relay device can use the reference signal to acquire channel information from the sending device to the receiving device, so as to use the reference signal more efficiently.
  • the power corresponding to the amplification and forwarding matrix of the relay device does not change. Based on this method, it is beneficial to ensure the stability of the hardware of the relay device, thereby preventing amplitude and/or phase errors caused by the relay, and improving channel estimation accuracy.
  • the terminal measures a relay channel according to the amplification and forwarding coefficient.
  • the relay channel includes a first channel on which there is a direct link between the network device and the terminal and/or a second channel on which there is no direct link between the network device and the terminal.
  • the downlink baseband signal model is as follows:
  • y t represents the received signal at time t
  • a t represents the forwarding matrix of the relay device at time t
  • w t represents the interference and noise of the relay device at time t
  • n t represents the interference and noise of the terminal at time t. If the number of receiving antennas is M, the dimension of y t is M ⁇ 1.
  • y 0 GAHPs 0 +FPs 0 +GAw 0 +n 0 ,
  • y 1 -GAHPs 1 +FPs 1 -GAw 1 +n 1 .
  • the reference signals s 0 and s 1 satisfy that the modulus is equal to 1, that is,
  • 1.
  • the precoding matrix P can be obtained.
  • S is a diagonal matrix, and Singular value decomposition (SVD for short) is performed.
  • the precoding matrix P may be the first K columns of V H , and the precoding matrix index may be obtained accordingly.
  • the rank index RI can be obtained according to S.
  • the value corresponding to RI is the non-zero number in S.
  • CQI can be obtained according to S.
  • a signal-to-noise ratio (SNR for short) can be obtained, and further, a CQI can be obtained. It can be understood that CQI, PMI, and RI all belong to channel state information CSI.
  • the coverage of the terminal can be judged by acquiring the F and the GAH. For example, if the quality of F (or the direct link channel between the terminal and the base station) is better than GAH (or the relay link channel between the terminal and the base station through the relay), it is considered that the terminal does not need to use the relay to communicate with the base station. Communication, or the terminal is considered to be within the direct coverage of the base station.
  • the relay can be turned off or silenced, so as to reduce network interference or save relay power consumption.
  • the terminal may need to use the relay to communicate with the base station. communicate, or consider the terminal to be within the coverage of the relay.
  • the relay can be turned on to improve the communication performance of the terminal.
  • the channel quality may refer to Signal Received Power (Reference Signals Received Power, referred to as RSRP), Signal Received Quality (Reference Signal Received Quality, referred to as RSRQ), or other channel status information (Channel Status Information, referred to as CSI), such as CQI , PMI, RI.
  • the relay device cooperates with the sending device to transmit the reference signal in a time-domain orthogonal cover code manner through different forwarding states of the relay device.
  • multiple reference signals of different ports may also be sent in the time domain, frequency domain, air domain, code domain, and the like. If only reference signals in the time domain, frequency domain, space domain, code domain and other dimensions are sent at the sender, only the combined channel from the sender to the receiver (including direct links, relay links, etc.) multi-link channel. However, through the joint operation of the relay device and the sending device, it can be used to estimate channels of more space links (that is, to obtain more channel information).
  • y 1 GAHPs 1 +FPs 1 +GAw 1 +n 1 .
  • Embodiment 1 requires the relay device to be turned on continuously, requires more resources and consumes more power, but can obtain better noise reduction effect and higher channel estimation accuracy.
  • the second embodiment it is possible to prevent the relay device from causing additional errors and thus affecting channel estimation performance when performing forwarding matrix switching.
  • [A r,0 ,A r,1 ,...,A r,T-1 ] constitute an amplified forwarding matrix pattern.
  • C is a Hadamard matrix, or a Golay matrix, or a Golay complementary matrix (Golay Complementary Matrices), or a discrete Fourier transform (discrete Fourier transform, referred to as DFT) matrix, or an inverse discrete Fourier transform (inverse discrete Fourier transform, IDFT) matrix.
  • DFT discrete Fourier transform
  • IDFT inverse discrete Fourier transform
  • c r is formed by cyclically shifting a certain vector (for example, denoted as c 0 ) with different values, for example, a unit vector [1,0,...,0] is cyclically shifted to form a unit matrix.
  • the relay device receives the amplified forwarding matrix pattern or vector from the network device, at the time (and/or frequency) of the reference signal, it adopts the corresponding forwarding matrix for forwarding. It should be understood that the sending device sends the reference signal at a corresponding time (and/or frequency), and the receiving device estimates the channel according to the configuration information related to the reference signal and the forwarding matrix.
  • [A r,0 ,A r,1 ,...,A r,T-1 ] constitute an amplifying and forwarding matrix pattern.
  • C is a Hadamard matrix, or a Golay matrix, or a Golay complement matrix, or a DFT matrix, or an IDFT matrix.
  • c r is composed of a certain vector (for example, denoted as c 0 ) cyclically shifting different values, that is, C is a cyclic matrix, for example, the unit vector [1,0,...,0] is cyclically shifted to form a unit matrix .
  • uplink channels H r A r, t G r and/or F can be estimated.
  • the amplification and forwarding matrix included in the amplification and forwarding matrix pattern described in this application refers to a relay device applied to amplification and forwarding.
  • the relay device works in a reflective state (for example, the relay device is a reflective panel)
  • the corresponding matrix may be called a reflective state matrix, or other similar names, which are not limited in this embodiment of the present application.
  • the terminal sends the measurement result to the network device.
  • the terminal After the terminal estimates the above results, it can determine the measurement results, which may include but not limited to at least one of the following: Channel Quality Indicator (CQI for short), Precoding Matrix Indicator (Precoding Matrix Indicator, short for short) PMI), Rank Indicator (RI for short), channel state information (CSI for short), etc.
  • CQI Channel Quality Indicator
  • Precoding Matrix Indicator Precoding Matrix Indicator, short for short
  • PMI Precoding Matrix Indicator
  • RI Rank Indicator
  • CSI channel state information
  • the network device may update the configuration information according to the measurement result, and then indicate to the relay device and/or the terminal.
  • the specific composition of the amplification and forwarding coefficient may include an amplification and forwarding matrix pattern, an amplification and forwarding matrix set, a forwarding vector pattern or a forwarding vector set, etc., which can be used to indicate that the relay device is in
  • the reference signal is forwarded to the terminal by using different forwarding matrices within T periods, where T is greater than or equal to 2. In some possible implementation manners, in FIG.
  • the amplification factors a 0 and a 1 on the two channels may be updated, or the relative amplification factor a 0 /a 1 may be updated. That is, each coefficient in the amplification and forwarding matrix pattern, or the relative value of the coefficients, may be updated, or the phase of the relative amplification factor a 0 /a 1 or the phase difference between the amplification factors a 0 and a 1 may be updated.
  • the above update methods are also applicable to scenarios involving more relay devices and/or more channels.
  • the configuration information updated according to the measurement results is used for forwarding, which can form positive feedback of the system and further improve the forwarding performance.
  • the network device can also update the configuration information according to the above method.
  • the network device configures the reference signal used for relay channel measurement, and instructs the sending device to send the reference signal at T times greater than or equal to 2 through the configuration information of the reference signal, and instructs the relay device to send the reference signal at Different forwarding matrices are used to forward the receiving device in T times, so that the receiving device can perform combined estimation according to the reference signals received at different times, and obtain the corresponding channel measurement results of the relay channel including the direct link and the relay link.
  • the accurate estimation of the channel in the relay communication scenario is realized, which is beneficial to the performance test and optimization design in the relay communication scenario.
  • the network device when in an uplink scenario, is a receiving device, and the terminal is a sending device.
  • FIG. 3 is a schematic flowchart of another method for measuring channel information provided by an embodiment of the present application; wherein, the steps S301-step S302 is similar to steps S201-S202, and the configuration information may include information such as the beam, power or bandwidth of the reference signal sent by the terminal, which will not be repeated here.
  • the method also includes:
  • the terminal sends the reference signal to the relay device within T times.
  • the terminal sends a sounding reference signal (Sounding reference signal, SRS for short).
  • the SRS transmission may be periodic.
  • T SRSs are sent in the same time slot, or in adjacent time slots/adjacent uplink times (referring to multiple transmission opportunities, no uplink and downlink switching occurs, thereby preventing channel or device status from occurring change, thereby affecting the channel estimation performance) and send T SRSs.
  • it is beneficial to ensure channel stability (to prevent channel or equipment from being subject to time variation, thus affecting estimation performance).
  • the relay device forwards the reference signal to the network device by using different forwarding matrices.
  • the network device measures a relay channel according to the amplification and forwarding coefficient.
  • the relay channel includes a first channel with a direct link between the network device and the terminal and/or a second channel with no direct link between the network device and the terminal;
  • the network device sends the measurement result to the terminal.
  • the relay device can also send the reference signal, and the network device and the terminal perform channel measurement respectively, or the network device The terminal and the terminal respectively send reference signals, and the relay device performs channel measurement.
  • the coverage of the terminal can be judged by acquiring the F and the HAG. For example, if the quality of F (or the direct link channel between the terminal and the base station) is better than that of HAG (or the relay link channel between the terminal and the base station through the relay), it is considered that the terminal does not need to use the relay to communicate with the base station. Communication, or the terminal is considered to be within the direct coverage of the base station. When the terminal needs to communicate with the base station, it can be considered to turn off or silence the relay, so as to reduce the interference of the relay to other users in the network or save the power consumption of the relay.
  • the terminal may need to use the relay to communicate with the base station. communicate, or consider the terminal to be within the coverage of the relay.
  • the relay can be turned on to improve the communication performance of the terminal.
  • FIG. 4 is a schematic flowchart of another method for measuring channel information provided by the embodiment of the present application; wherein, steps S401-step S402 are similar to steps S201-S202, and the configuration information may include the reference signal sent by the relay device For information such as beam, power, or bandwidth, in step S402, since the relay device does not need to perform relay forwarding, the configuration information may not include the amplification forwarding coefficient.
  • the relay device also does not need to perform the step of forwarding the reference signal using different forwarding matrices within T times. I won't repeat them here.
  • the method also includes:
  • the relay device sends the reference signal to the network device.
  • the relay device sends the reference signal to the terminal.
  • the network device measures a channel between the network device and the relay device.
  • the network device can estimate the channel matrix H.
  • the terminal measures a channel between the terminal and the relay device.
  • the network device can estimate the channel matrix G.
  • the network device or the terminal By sending a reference signal by the relay device, the network device or the terminal performs channel estimation, and the channel estimation result of the individual network device-relay device and the channel estimation result of the terminal-relay device can be obtained, which can be compared with other estimation results Combined use to get more channel information.
  • FIG. 5 is a schematic flowchart of another method for measuring channel information provided by the embodiment of the present application; wherein, steps S501-step S502 are similar to steps S201-S202, and the configuration information may include reference signals sent by terminals and network devices
  • the configuration information may not include the amplification forwarding coefficient.
  • the relay device also does not need to perform the step of forwarding the reference signal using different forwarding matrices within T times. I won't repeat them here.
  • the method also includes:
  • the network device sends the reference signal to the relay device.
  • the terminal sends the reference signal to the relay device.
  • the relay device respectively measures the channel between the network device and the relay device and the channel between the terminal and the relay device.
  • the relay device can estimate the channel matrices H and G.
  • the relay device sends the measurement result to the network device.
  • the estimation results of the channel matrix H and G may be sent at the same time, or the estimation result of the channel matrix H which is more relevant to the network equipment may be sent.
  • the relay device sends the measurement result to the terminal.
  • the estimation results of the channel matrix H and G may be sent at the same time, or the estimation result of the channel matrix G which is more relevant to the terminal may be sent.
  • the relay device estimates H and/or G, and feeds back to the sending device, so that the sending device can design a precoding matrix; or feed back to the receiving device, so that the receiving device can design a precoding matrix, and further store the precoding matrix information Notification receiving device.
  • the relay device estimates H (or corresponding channel information) and feeds it back to the sending device; the sending device uses the estimated direct link channel F, relay link channel GAH or HAG. Further restore GA or AG.
  • the sending device may perform joint design according to at least one of the following information: H (or corresponding channel information), GA, AG, GAH or HAG.
  • the relay device estimates G (or corresponding channel information) and feeds it back to the sending device; the sending device uses the estimated direct link channel F, relay link channel GAH or HAG. Further restore AH or HA.
  • the sending device may perform joint design according to at least one of the following information: H (or corresponding channel information), AH, HA, GAH or HAG.
  • the relay device By sending reference signals from the network device and the terminal respectively, and the relay device performs channel estimation, the channel estimation results of the individual network device-relay device and the channel estimation result of the terminal-relay device can be obtained, which can be compared with other estimation The results are used jointly to obtain more channel information.
  • FIG. 4 and FIG. 5 can be used in combination with the embodiment described in FIG. 2 or FIG. 3 , so as to obtain more channel information.
  • Figure 6 is a schematic diagram of the composition of a network device provided by the embodiment of the present application; used in a downlink scenario, it may include:
  • a processing unit 100 configured to configure configuration information of a reference signal used to measure channel information
  • the transceiver unit 200 is configured to send the configuration information to the relay device, the configuration information includes an amplification and forwarding coefficient; send the reference signal to the relay device at T times, and T is greater than or equal to 2; wherein , the amplified forwarding coefficient is used to instruct the relay device to forward the reference signal to the terminal using different forwarding matrices within the T times.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiving unit 200 is further configured to send the configuration information to the terminal.
  • the processing unit 100 is configured to configure configuration information of a reference signal used to measure channel information
  • the transceiver unit 200 is configured to send the configuration information to the relay device, where the configuration information includes an amplification and forwarding coefficient;
  • the amplified forwarding coefficient is used to instruct the relay device to use different forwarding matrices to forward the reference signal sent by the terminal to the network device within T times, and T is greater than or equal to 2;
  • the processing unit 100 is further configured to measure a relay channel according to the amplifying and forwarding coefficient, the relay channel includes a first channel and/or a second channel, and the first channel is that the network device and the terminal exist A channel of a direct link, the second channel does not have a channel of a direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit 200 is also used for:
  • the network device sends the configuration information to the terminal.
  • FIG. 7 is a schematic composition diagram of another network device provided by an embodiment of the present application; it may include a processor 110 , a memory 120 and a bus 130 .
  • the processor 110 and the memory 120 are connected through the bus 130, the memory 120 is used to store instructions, and the processor 110 is used to execute the instructions stored in the memory 120, so as to implement the steps performed by the network device in the method corresponding to Figure 2- Figure 5 above .
  • the network device may also include an input port 140 and an output port 150 .
  • the processor 110, the memory 120, the input port 140 and the output port 150 may be connected through the bus 130.
  • the processor 110 is used to execute the instructions stored in the memory 120 to control the input port 140 to receive signals, and control the output port 150 to send signals, so as to complete the steps performed by the network device in the above methods.
  • the input port 140 and the output port 150 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 120 can be integrated in the processor 110 , or can be set separately from the processor 110 .
  • the functions of the input port 140 and the output port 150 may be realized by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 110 may be considered to be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • a general-purpose computer to implement the network device provided in the embodiment of the present application.
  • the program codes to realize the functions of the processor 110, the input port 140 and the output port 150 are stored in the memory, and the general-purpose processor realizes the functions of the processor 110, the input port 140 and the output port 150 by executing the codes in the memory.
  • Figure 8 is a schematic diagram of the composition of a relay device provided in the embodiment of the present application; in the downlink scenario, it may include:
  • the transceiver unit 300 is configured to receive the configuration information sent by the network device, the configuration information is the configuration information of the reference signal used to measure the channel information, the configuration information includes the amplification and forwarding coefficient;
  • the transmitted reference signal, T is greater than or equal to 2;
  • the processing unit 400 is configured to instruct the transceiver unit to forward the reference signal to the terminal using different forwarding matrices within the T times according to the amplified forwarding coefficient.
  • the transceiver unit 300 may be used to send reference signals to the network device and the terminal respectively at the T times;
  • the transceiver unit 300 is used to receive the reference signal sent by the network device and the terminal, and the relay device also includes a processing A unit 400, the processing unit 400 is configured to respectively measure a channel between the network device and the relay device and a channel between the terminal and the relay device.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit 300 is configured to receive configuration information sent by the network device, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient ; Receive reference signals sent by the terminal at T times, where T is greater than or equal to 2;
  • the processing unit 400 is configured to instruct the transceiving unit 300 to forward the reference signal to the network device by using different forwarding matrices within the T times according to the amplified forwarding coefficient.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • FIG. 9 is a schematic composition diagram of another relay device according to an embodiment of the present application; it may include a processor 210 , a memory 220 , a signal amplifier 230 and a bus 240 .
  • the processor 210 and the memory 220 are connected through the bus 240, the memory 220 is used to store instructions, the signal amplifier is used to amplify the received signal, and the processor 210 is used to execute the instructions stored in the memory 220, so as to realize the above figure 2- Figure 5 corresponds to the steps performed by the relay device in the method.
  • the relay device may further include an input port 250 and an output port 260 .
  • the processor 210 , the memory 220 , the signal amplifier, the input port 250 and the output port 260 may be connected through the bus 240 .
  • the processor 210 is used to execute the instructions stored in the memory 220 to control the input port 250 to receive the signal, and control the signal amplifier to amplify the received signal, and the output port 260 to send the amplified signal to complete the steps performed by the relay device in the above method .
  • the input port 250 and the output port 260 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 220 may be integrated in the processor 210 , or may be set separately from the processor 210 .
  • the functions of the input port 250 and the output port 260 may be realized by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 210 may be considered to be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • a general-purpose computer to implement the terminal provided in the embodiment of the present application.
  • the program codes to realize the functions of the processor 210, the input port 250 and the output port 260 are stored in the memory, and the general-purpose processor realizes the functions of the processor 210, the input port 250 and the output port 260 by executing the codes in the memory.
  • Figure 10 is a schematic diagram of the composition of a terminal provided in the embodiment of the present application; in the downlink scenario, it may include:
  • the transceiver unit 500 is configured to obtain configuration information, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the transceiver unit 500 is further configured to receive the reference signal forwarded by the relay device using different forwarding matrices within T times according to the amplified forwarding matrix coefficient, where T is greater than or equal to 2;
  • the processing unit 600 is configured to measure a relay channel according to the amplified forwarding coefficient, the relay channel includes a first channel and/or a second channel, and the first channel is that the network device is directly connected to the terminal A link channel, the second channel is a channel that does not have a direct link between the network device and the terminal.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit 500 is specifically configured to:
  • the transceiver unit 500 is further configured to send the measurement result to the network device.
  • the transceiver unit 500 when in an uplink scenario, is configured to acquire configuration information, the configuration information is configuration information of a reference signal used to measure channel information, and the configuration information includes an amplification and forwarding coefficient;
  • the processing unit 600 is configured to instruct the transceiver unit to send the reference signal to the relay device at T times, where T is greater than or equal to 2; wherein the amplification and forwarding coefficient is used to indicate that the relay device Different forwarding matrices are used to forward the reference signal to the network device within the T times.
  • the different forwarding matrices form an orthogonal mask in the time domain.
  • the transceiver unit 500 is specifically configured to:
  • the transceiver unit 500 is further configured to:
  • FIG. 11 is a schematic composition diagram of another terminal provided by an embodiment of the present application; it may include a processor 310 , a memory 320 and a bus 330 .
  • the processor 310 and the memory 320 are connected through the bus 330, the memory 320 is used to store instructions, and the processor 310 is used to execute the instructions stored in the memory 320, so as to realize the steps executed by the terminal in the methods corresponding to Figures 2-5 above.
  • the receiving device may further include an input port 340 and an output port 350 .
  • the processor 310 , the memory 320 , the input port 340 and the output port 350 may be connected through a bus 330 .
  • the processor 310 is used to execute the instructions stored in the memory 320 to control the input port 340 to receive signals, and control the output port 350 to send signals, so as to complete the steps performed by the terminal in the above method.
  • the input port 340 and the output port 350 may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as input and output ports.
  • the memory 320 may be integrated in the processor 310 , or may be set separately from the processor 210 .
  • the functions of the input port 340 and the output port 350 may be realized by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 310 may be considered to be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • a general-purpose computer to implement the terminal provided in the embodiment of the present application.
  • the program codes to realize the functions of the processor 310, the input port 340 and the output port 350 are stored in the memory, and the general-purpose processor realizes the functions of the processor 310, the input port 340 and the output port 350 by executing the codes in the memory.
  • FIG. 7 Those skilled in the art can understand that, for ease of description, only one memory and processor are shown in FIG. 7 , FIG. 9 and FIG. 11 . In an actual controller, there may be multiple processors and memories.
  • a storage may also be called a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
  • the processor may be a central processing unit (Central Processing Unit, referred to as CPU), and the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processing, referred to as DSP), Application Specific Integrated Circuit (ASIC for short), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU Central Processing Unit
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA off-the-shelf programmable gate array
  • the memory which can include read only memory and random access memory, provides instructions and data to the processor.
  • a portion of the memory may also include non-volatile random access memory.
  • the bus may also include a power bus, a control bus, and a status signal bus.
  • a power bus may also include a power bus, a control bus, and a status signal bus.
  • various buses are labeled as buses in the figures.
  • each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.
  • the embodiment of the present application further provides a system, which includes the foregoing network device, relay device, terminal, and the like.
  • serial numbers of the above-mentioned processes do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, rather than the implementation process of the embodiments of the present application. constitute any limitation.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, DSL) or wireless (eg, infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state hard disk), etc.

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Abstract

本申请实施例公开了一种测量信道信息的方法、网络设备、中继设备及终端，方法包括：网络设备配置用于测量信道信息的参考信号的配置信息；将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。采用本申请实施例，可实现对中继信道中的直达链路和中继链路的测量。

Description

一种测量信道信息的方法、网络设备、中继设备及终端
本申请要求于2021年08月27日提交中国专利局、申请号为202110997521.9、申请名称为“一种测量信道信息的方法、网络设备、中继设备及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请通信技术领域，尤其涉及一种测量信道信息的方法、网络设备、中继设备及终端。
背景技术
由于网络设备与终端之间距离比较远，对应的路损高，使得终端通信质量差甚至可能无法与网络设备直接通信。因此可以借助中继，辅助基站和终端之间通信。一种复杂度比较低的中继方法是中继直接将接收信号放大后转发或反射接收信号，根据通信的方向，可进一步分为发送设备与接收设备之间存在直达链路的中继通信和发送设备与接收设备之间不存在直达链路的中继通信。
在现有的新空口(New Radio，简称NR)技术中，仅针对下行信道和上行信道分别采取信道状态信息参考信号(Channel status information reference signal，简称CSI-RS)和探测参考信号(Sounding reference signal，简称SRS)进行测量，无法适用于考虑中继通信的网络中。尤其是，系统中引入中继设备后，基站和终端之间的信道，是两级级联、多链路混合信道，基站-中继及中继-终端链路、基站-终端链路，现有方式无法完成信道测量。
发明内容
本申请实施例所要解决的技术问题在于，提供一种测量信道信息的方法、网络设备、中继设备及终端，以解决测量中继信道的问题。
第一方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
网络设备配置用于测量信道信息的参考信号的配置信息；
将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；
在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
网络设备通过配置用于中继信道测量的参考信号，并通过参考信号的配置信息指示发送设备在大于或等于2的T个时间发送参考信号，且指示中继设备在T个时间内采用不同的转发矩阵转发给接收设备，使得接收设备端可以根据不同时间接收到的参考信号进行组合估计，得到中继信道包括直达链路、中继链路等对应的信道测量结果，实现了中继通信场景下的信道精确估计，利于中继通信场景下的性能测试和优化设计。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
通过使用构成正交掩码的不同转发矩阵来转发不同时间发送的参考信号，使得接收设备可以结合不同时间接收的参考信号进行组合估计，得到中继信道的测量结果。
在一种可能的实现方式中，所述方法还包括：
所述网络设备将所述配置信息发送给终端。
第二方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
中继设备接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
接收所述网络设备在T个时间发送的参考信号，T大于或等于2；
根据所述放大转发系数在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
第三方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
终端获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
接收中继设备根据所述放大系数在T个时间内采用不同的转发矩阵转发的参考信号，T大于或等于2；
根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述终端获取配置信息包括：
所述终端接收所述网络设备发送的所述配置信息；
或者，所述终端接收所述中继设备转发的所述配置信息。
在一种可能的实现方式中，所述方法还包括：
所述终端将测量结果发送给所述网络设备。
第四方面，本申请的实施例提供了一种网络设备，可包括：
处理单元，用于配置用于测量信道信息的参考信号的配置信息；
收发单元，用于将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述收发单元还用于将所述配置信息发送给终端。
第五方面，本申请的实施例提供了一种中继设备，可包括：
收发单元，用于接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；接收所述网络设备在T个时间发送的参考信号，T大于或等于2；
处理单元，用于根据所述放大转发系数指示所述收发单元在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
第六方面，本申请的实施例提供了一种终端，可包括：
收发单元，用于获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
所述收发单元还用于接收中继设备根据所述放大转发矩阵系数在T个时间内采用不同的转发矩阵转发的参考信号，T大于或等于2；
处理单元，用于根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道 所述网络设备与所述终端不存在直连链路的信道。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述收发单元具体用于：
接收所述网络设备发送的所述配置信息；
或者，接收所述中继设备转发的所述配置信息。
在一种可能的实现方式中，所述收发单元还用于将测量结果发送给所述网络设备。
第七方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
网络设备配置用于测量信道信息的参考信号的配置信息；
将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；
其中，所述放大转发系数用于指示所述中继设备在T个时间内采用不同的转发矩阵向所述网络设备转发终端发送的参考信号，T大于或等于2；
根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述方法还包括：
所述网络设备将所述配置信息发送给终端。
第八方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
中继设备接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
接收所述终端在T个时间发送的参考信号，T大于或等于2；
根据所述放大转发系数在所述T个时间内采用不同的转发矩阵向所述网络设备转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
第九方面，本申请的实施例提供了一种测量信道信息的方法，可包括：
终端获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向网络设备转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述终端获取配置信息包括：
所述终端接收所述网络设备发送的所述配置信息；
或者，所述终端接收所述中继设备转发的所述配置信息。
在一种可能的实现方式中，所述方法还包括：
所述终端将测量结果发送给所述网络设备。
第十方面，本申请实施例提供了一种网络设备，包括：
处理单元，用于配置用于测量信道信息的参考信号的配置信息；
收发单元，用于将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；
其中，所述放大转发系数用于指示所述中继设备在T个时间内采用不同的转发矩阵向所述网络设备转发终端发送的参考信号，T大于或等于2；
所述处理单元还用于根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述收发单元还用于：
所述网络设备将所述配置信息发送给终端。
第十一方面，本申请实施例提供了一种中继设备，包括：
收发单元，用于接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；接收所述终端在T个时间发送的参考信号，T大于或等于2；
处理单元，用于指示所述收发单元根据所述放大转发系数在所述T个时间内采用不同的转发矩阵向所述网络设备转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
第十二方面，本申请实施例提供了一种终端，包括：
收发单元，用于获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
处理单元，用于指示所述收发单元在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向网络设备转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
在一种可能的实现方式中，所述收发单元具体用于：
接收所述网络设备发送的所述配置信息；
或者，接收所述中继设备转发的所述配置信息。
在一种可能的实现方式中，所述收发单元还用于：
将测量结果发送给所述网络设备。
第十三方面，提供了一种装置。本申请提供的装置具有实现上述方法方面中网络设备或中继设备或终端行为的功能，其包括用于执行上述方法方面所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中网络设备相应的功能。例如，配置用于测量中继信道的参考信号的配置信息。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，向中继设备发送上述配置信息，以及接收终端发送的测量结果等。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为基站，gNB或TRP等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器 中的计算机程序，使得该装置执行第一方面或第一方面中任一种可能实现方式，或第七方面或第七方面中任一种可能实现方式中网络设备完成的方法。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中中继设备相应的功能。例如，根据所述放大转发系数分别测量所述网络设备与所述中继设备之间的信道以及所述终端与所述中继设备之间的信道等。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，接收网络设备发送的配置信息，接收网络设备或终端发送的参考信号并放大转发给终端或网络设备，或者向网络设备或终端发送参考信号等。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存网络设备必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以为一个具备信号转发功能的终端设备等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行存储器中的计算机程序，使得该装置执行第二方面或第二方面中任一种可能实现方式，或第八方面或第八方面中任一种可能实现方式中中继设备完成的方法。
在一种可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述装置执行上述方法中接收设备相应的功能。例如，根据所述放大转发系数测量中继信道等。所述通信单元用于支持所述装置与其他设备通信，实现接收和/或发送功能。例如，当接收设备为终端时可接收网络设备或中继设备发送的配置信息，接收中继设备放大转发的参考信号，向网络设备发送测量结果等。当其为网络设备时，可以接收中继设备放大转发的参考的信号等。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存网络设备必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述装置可以是终端设备或者可穿戴设备等，所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行存储器中的计算机程序，使得该装置执行第三方面或第三方面中任一种可能实现方式，或第九方面或第九方面中任一种可能实现方式中终端完成的方法。
第十四方面，提供了一种系统，该系统包括上述网络设备、中继设备和终端。
第十五方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面中任一种可能实现方式，或第七方面或第七方面中任一种可能实现方式中的方法的指令。
第十六方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面中任一种可能实现方式，或第八方面或第八方面中任一种可能实现方式中的方法的指令。
第十七方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第三方面或第三方面中任一种可能实现方式，或第九方面或第九方面中任一种可能实现方式中的方法的指令。
第十八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面或第一方面中任一种可能实现方式，或第七方面或第七方面中任一种可能实现方式中的方法。
第十九方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第二方面及第二方面中任一种可能实现方式，或第八方面或第八方面中任一种可能实现方式中的方法。
第二十方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第三方面及第三方面中任一种可能实现方式，或第九方面或第九方面中任一种可能实现方式中的方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1为本申请实施例提供的一种通信系统的架构示意图；
图2为本申请实施例提供的一种测量信道信息的方法的流程示意图；
图3为本申请实施例提供的另一种测量信道信息的方法的流程示意图；
图4为本申请实施例提供的又一种测量信道信息的方法的流程示意图；
图5为本申请实施例提供的又一种测量信道信息的方法的流程示意图；
图6为本申请实施例提供的一种网络设备的组成示意图；
图7为本申请实施例提供的另一种网络设备的组成示意图；
图8为本申请实施例提供的一种中继设备的组成示意图；
图9为本申请实施例提供的另一种中继设备的组成示意图；
图10为本申请实施例提供的一种终端的组成示意图；
图11为本申请实施例提供的另一种终端的组成示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请的实施例进行描述。
本申请的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了便于说明，本发明实施例中以5G系统来进行描述，本领域技术人员应当理解，本发明实施例中的实施方式同样可适用于现有通信系统以及未来更高级别如6G、7G的通信系统，本发明实施例不作任何限定。
下面结合附图对本申请实施例的测量信道信息的方法及设备进行详细说明。
请参照图1，为本申请实施例提供的一种通信系统的架构示意图。其中可以包括网络设备10、中继设备20和终端30。
其中，网络设备10是无线网络中的设备，网络设备10可以是NR基站(gNB)、演进型节点B(evolved Node B，简称eNB)、节点B(Node B，简称NB)、基站控制器(Base Station Controller，简称BSC)、基站收发台(Base Transceiver Station,简称BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，简称HNB)、基带单元(BaseBand Unit，简称BBU)等。其也可以被本领域技术人员称之为基站收发机、无线基站、无线收发机、收发机功能、基站子系统(BaseStationSubsystem，简称BSS)或者一些其它适当的术语。其是网络侧一种用于发射信号或接收信号的实体，在本申请实施例中，网络设备10可以配置参考信号的配置信息，向中继设备20发送配置信息等。
其中，中继设备20是具有信号转发功能的终端设备，可以对信号进行放大。另外，中继设备20还可以对信号的载波频率进行搬移，或者还可以将信号解调后重新调制再转发，或者还可以将信号降噪后再转发。因此中继设备20进行的中继可以是如下任意一种形式：放大转发、解调转发、移频转发、降噪转发。此外，中继设备20还有另外的一种形态，称为反射器，或者称为反射面，或者其它可能称号：智能反射面(intelligent reflecting surface)，可配置智能表面(reconfigurable intelligent surface，简称RIS)，反射阵列，智能反射阵列(intelligent reflecting array)，反射器，智能反射器，反射设备(backscatter device)，无源设备(passive device)，半有源设备(semi-passive device)，散射信号设备(ambient signal device)。中继设备20可以被认为是一种特殊形态的终端。在本申请实施例中，中继设备20可用于根据放大转发矩阵图案或向量将发送设备发送的参考信号转发给接收设备等。
其中，终端30也可以称为用户设备(User Equipment，简称UE)。其可以包括蜂窝电话、智能电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、膝上型计算机、个人数字助理(Personal Digital Assistant，简称PDA)、卫星无线电、全球定位系统、多媒体设备、视频设备、数字音频播放器(例如，MP3播放器)、照相机、游戏控制台或者其它任何相似功能的设备。终端也可以被本领域技术人员称为移动站、用户站、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户站、接入终端、移动终端、无线终端、远程终端、手持设备、用户代理、移动客户端、客户端或者一些其它适当的术语。其是用户侧的一种用于接收信号或发射信号的实体，在本申请实施例中，终端30可以接收网络设备10发送的配置信息，接收中继设备发送的参考信号，根据放大转发矩阵图案测量信道。或者作为发送设备向中继设备发送参考信号等。
为了描述简便，本申请实施例仅示出了一个中继设备20和一个终端30，在实际场景中，中继设备20的数量可以是一个或多个，终端30的数量可以是一个或多个，本申请实施例不作任何限定。当存在一个以上的中继设备20时，则属于多跳中继通信的场景，此时可以将图1中的网络设备替换成Donor中继(或者称为上一级中继)，或者将终端替换成slave中继(或者称为下一级中继)。
图1示出了网络设备与终端之间存在直连链路F的场景，若去掉F时，则属于网络设备与终端之间不存在直连链路的场景或者直连链路质量相对比较差的场景。
图1中的符号和参数的意义如下：
Figure PCTCN2022110648-appb-000001
Figure PCTCN2022110648-appb-000002
Figure PCTCN2022110648-appb-000003
对于中继通信系统来说，用于对传输信息预编码以及传输功率进行功率分配的预编码矩阵P和均衡矩阵B一般取决于H,G,F,A，中继通信系统设计的目标是基于H,G,F,A的全部和部分参数信息下，来设计较优的预编码矩阵P和均衡矩阵B。或者中继通信系统设计的目标是基于H,G,F的全部和部分参数信息下，联合设计较优的预编码矩阵P、中继放大矩阵A和均衡矩阵B。
因此，如何获取H,G,F是比较关注的问题。
下面，将结合图2-图5所示的实施例对本申请测量信道信息的方法进行详细说明。请参见图2，图2为一个本申请实施例提供的一种测量信道信息的方法的流程示意图；具体包括如下步骤：
S201.网络设备配置用于测量信道信息的参考信号的配置信息。
在步骤S201之前，还可以包括步骤S200(图2未示)，中继设备接入网络设备。
可选地，所述配置信息中包括放大转发系数，放大转发系数的具体组成可以包括放大转发矩阵图案、放大转发矩阵集合、转发向量图案或转发向量集合等，其可用于指示所述中继设备在T个时间内采用不同的转发矩阵向终端转发所述参考信号，T大于等于2。
可选地，所述配置信息还包括参考信号的各种传输参数如波束信息、时频资源、功率参数、空间相关信息等。
其中，波束信息可以包括每个参考信号的基站发送、中继发送、中继接收、UE接收的波束信息。
在NR协议中，波束的体现可以为空域滤波器(spatial filter)、空间滤波器(spatial filter)或空间参数(spatial parameters)等。相应地，发送波束(transmission beam，Tx beam)可以为发送空域滤波(spatial domain transmission filter)、空间发送滤波器(spatial domain transmit filter)或空间发射参数(spatial domain transmit parameter)等；接收波束(reception beam，Rx beam)可以为接收空域滤波器(spatial domain receiver filter)、空间接收滤波器(spatial domain receive filter)或空间接收参数(spatial domain receive parameter)等。
本申请实施例中，波束可以使用传输配置指示(transmission configuration indication，简称TCI)状态表示，进一步地，可以使用TCI中的准同位(quasi-co-location，简称QCL)关系表示。
各个配置信息对应参考信号RS的中继发送波束(转发波束)和中继接收波束。
S202.网络设备将所述配置信息发送给中继设备。
可选地，所述配置信息可以由网络设备配置，下发给中继设备，还可以发送给终端，或者由中继发送给终端。配置信息可以承载在物理广播信道(Physical Broadcast Channel，简称PBCH)、剩余最小系统信息(Remaining minimum system information，简称RMSI)、系统信息块(System Information Block，简称SIB)1、SIB2、SIB3，媒体接入控制控制元素(Media Access control-control element，简称MAC-CE)、下行控制信息(Down link control information，简称DCI)、无线资源控制(Radio Resource Control，简称RRC)以及系统信息中的任意一项或多项。
S203.网络设备在T个时间向所述中继设备发送参考信号。
需要说明的是，此处在T个时间发送参考信号可以是连续发送或非连续发送，一个参考 信号可以占用一个或多个符号/时隙。或者，也可以在一个时隙内发送多个参考信号。例如，网络设备可以发送信道状态信息参考信号(Channel status information reference signal，简称CSI-RS)。可选地，其中CSI-RS发送可以周期性的。进一步地，可以在同一个时隙发送T个CSI-RS，或者在相邻的时隙/相邻下行时间(是指在多次发送机会之间，没有发生上下行切换，从而可以防止信道或者设备状态发生变化，从而影响信道估计性能)内发送T个CSI-RS。
可选地，网络设备发送参考信号的波束、功率或带宽等，在T个时间不发生变化。基于此方法，有利于保证网络设备不同时间发送参考信号的稳定程度，从而防止发送带来的误差，且提升终端测量信道信息时的估计精度。
S204.中继设备采用不同的转发矩阵向终端转发参考信号。
可选地，所述不同的转发矩阵在时域上构成正交掩码。此时，当正交掩码由接收设备所获知时，可以更方便接收设备进行信道估计。
可选地，中继设备接收参考信号的波束，在T个时间不发生变化；和/或者，中继设备转发参考信号的波束，在T个时间不发生变化。基于此方法，有利于保证中继设备硬件的稳定程度，从而防止中继带来的误差，且提升信道估计精度。
可选地，在T个时间内的至少一个时间，中继设备接收参考信号，但是不转发信号。此时，中继设备可以利用参考信号，获取发送设备到接收设备的信道信息，从而更高效的利用参考信号。
可选地，中继设备放大转发矩阵对应的功率不发生变化。基于此方法，有利于保证中继设备硬件的稳定程度，从而防止中继带来的幅度和/或相位误差，且提升信道估计精度。
S205.终端根据所述放大转发系数测量中继信道。
可选地，所述中继信道包括网络设备与终端存在直连链路的第一信道和/或所述网络设备与所述终端不存在直连链路的第二信道。
在步骤S203-步骤S205的过程中，为了便于描述，以某个发送设备端数据流为实施例一，则下行基带信号模型如下：
y t＝GA tHPs t+FPs t+GAw t+n t,t＝0,1,…,T-1。
其中y t表示在时间t收到信号，A t表示中继设备在时间t的转发矩阵，w t表示中继设备在时间t的干扰和噪声，n t表示终端在时间t的干扰和噪声。如果接收天线数量是M，则y t的维度为M×1。
例如，单个中继的时候，发送设备(下行时为网络设备)在T个时间(时隙或者正交频分复用(Orthogonal frequency divided multiplexing，简称OFDM)符号上，T≥2)发送参考信号，中继设备可以采取如下方式，如在T＝2个时间进行转发，且转发矩阵满足A 0＝A,A 1＝-A，接收端基带信号为：
y 0＝GAHPs 0+FPs 0+GAw 0+n 0，
y 1＝-GAHPs 1+FPs 1-GAw 1+n 1。
一般情况下，参考信号s 0和s 1满足模等于1，即|s 0|＝|s 1|＝1。记他们的共轭分别为
Figure PCTCN2022110648-appb-000004
和
Figure PCTCN2022110648-appb-000005
则将以上两个式子中的导频信号
Figure PCTCN2022110648-appb-000006
和
Figure PCTCN2022110648-appb-000007
去掉，然后分别相加和相减，可以得到：
Figure PCTCN2022110648-appb-000008
Figure PCTCN2022110648-appb-000009
以上两个式子中，由于噪声和干扰的随机性，且能够采取一些降噪措施，使得
Figure PCTCN2022110648-appb-000010
和
Figure PCTCN2022110648-appb-000011
对信道系数的影响近乎忽略。最终可以估计出FP和GAHP。针对K个数据流，也可以采取类似的方法，分别估计出 FP k和GAHP k,k＝0,1,…,K-1。当P＝[P 0,P 1,…,P K-1]满秩时，可以进一步获得F和GAH。从而得到直连链路和中继链路的相关矩阵。进而得到信道的测量结果。
在一种实现方式中，根据估计的信道信息
Figure PCTCN2022110648-appb-000012
例如如下任意一个或多个：F和GAH、G、H，可以获得预编码矩阵P。首先，可以获得
Figure PCTCN2022110648-appb-000013
且
Figure PCTCN2022110648-appb-000014
其中S为对角矩阵，记进行奇异值分解(Singular value decomposition，简称SVD)。可选地，预编码矩阵P可以为V H的前K列，相应地可以获得预编码矩阵索引。可选地，秩索引RI可以根据S获得。例如，RI对应的值为S中非零个数。可选地，CQI可以根据S获得。例如，根据S以及噪声功率，可以获得信噪比(signal-to-noise ratio，简称SNR)，进一步可以获得CQI。可以理解，CQI、PMI、RI都属于信道状态信息CSI。
在一种实现方式中，通过获取F和GAH，可以判断终端的覆盖范围。例如，如果F(或者终端与基站的直达链路信道)的质量好于GAH(或者终端通过中继与基站连接的中继链路信道)，则认为终端可以不需要借助于中继与基站进行通信，或者认为终端位于基站的直接覆盖范围内。当终端需要与基站通信时，可以考虑将中继关闭或者静默，从而降低网络的干扰或者节省中继功耗。反之，例如，如果F(或者终端与基站的直达链路信道)的质量差于GAH(或者终端通过中继与基站连接的中继链路信道)，则认为终端可以需要借助于中继与基站进行通信，或者认为终端位于中继的覆盖范围内。当终端需要与基站通信时，可以考虑将中继开启，从而提升终端的通信性能。应该理解，信道质量可以是指信号接收功率(Reference Signals Received Power，简称RSRP)、信号接收质量(Reference Signal Received Quality，简称RSRQ)，或者其它信道状态信息(Channel Status Information，简称CSI)，例如CQI、PMI、RI。
在本实施例中，可以认为是中继设备联合发送设备，通过中继设备的不同转发状态，实现时域正交掩码(time-domain orthogonal cover code)的方式发送参考信号。另外在发送设备端，也可以在时域、频域、空域、码域等发送多个不同端口的参考信号。如果仅在发送端发送时域、频域、空域、码域等维度的参考信号，则仅能估计发送端到接收端的组合信道(包括直达链路、中继链路等)，无法分辨出更多链路的信道。而通过中继设备和发送设备的联合操作，可以用于估计更多空间链路的信道(即获得更多信道的信息)。
在另一种可能的实现方式即实施例二中，如单个中继的时候，中继设备可以在T＝2个时间内，有一个时间转发参考信号，有一个时间中继设备不转发参考信号。例如，两个转发矩阵满足A 0＝0,A 1＝A，接收设备端的基带信号为：
y 0＝FPs 0+n 0，
y 1＝GAHPs 1+FPs 1+GAw 1+n 1。
类似上述实施例一的处理方式，可以得到，
Figure PCTCN2022110648-appb-000015
Figure PCTCN2022110648-appb-000016
根据上式以及上述实施例一类似的方法，最终也可以获得F和GAH。应该理解，实施例一需要中继设备连续开启，需要的资源更多且功耗更大，但是可以获得更好的降噪效果，信道估计精度更高。而另一方面，实施例二中，可以防止中继设备在进行转发矩阵切换时，导致额外的误差从而影响信道估计性能。
在一种可能的实现方式即实施例三中，如果有R个中继，则可以使用T＝R+1个不同的时间，每个中继设备按照不同的放大转发矩阵图案使用转发矩阵，从而方便估计直达链路信道矩阵F和各条中继链路的信道矩阵G rA r,tH r,r＝0,1,…,R-1。
Figure PCTCN2022110648-appb-000017
其中，[A r,0,A r,1,…,A r,T-1]构成一个放大转发矩阵图案。在一种情况下，A r,t＝A rc r,t，记c r＝[c r,0,c r,1,…,c r,T]，进一步记c T＝[1,1,…,1]为长度T的全1向量。且c r和c T可以构成维度为T×T的矩阵C＝[c r,t] T×T。在一种情况下，C满秩，使得最终可以恢复出G rA rH r,r＝0,1,…,R-1。
可选地，C为Hadamard矩阵，或者Golay矩阵，或者Golay补矩阵(Golay Complementary Matrices)，或者离散傅里叶变换(discrete Fourier transform，简称DFT)矩阵，或者逆离散傅里叶变换(inverse discrete Fourier transform，IDFT)矩阵。
可选地，c r为某个向量(例如，记为c 0)循环移位不同值构成，例如，单位向量[1,0,…,0]循环移位形成单位阵。
其中，网络设备配置中继设备r时，包括的配置信息对应的放大转发矩阵图案[A r,0,A r,1,…,A r,T-1]，或者配置信息对应的向量c r＝[c r,0,c r,1,…,c r,T]，该向量可以用于确定放大转发矩阵图案。进一步地，网络设备还可以配置T。中继设备接收到网络设备关于放大转发矩阵图案或者向量时，在参考信号的时间(和/或频率)，采取对应的转发矩阵进行转发。应该理解，发送设备端在相应的时间(和/或频率)发送参考信号，接收设备端会根据参考信号和转发矩阵相关的配置信息，估计出信道。
在一种可能的实现方式即实施例四中，直达链路可以忽略不计，且有R个中继，则可以使用T＝R个不同的时间，每个中继设备按照不同的放大转发矩阵图案使用转发矩阵，从而方便估计各条中继链路的信道矩阵G rA r,tH r,r＝0,1,…,R-1。即
Figure PCTCN2022110648-appb-000018
与上面的实施例三类似，[A r,0,A r,1,…,A r,T-1]构成一个放大转发矩阵图案。在一种情况下，A r,t＝A rc r,t，记c r＝[c r,0,c r,1,…,c r,T]。则c r可以构成维度为T×T的矩阵C＝[c r,t] T×T。在一种情况下，C满秩，使得最终可以恢复出G rA rH r,r＝0,1,…,R-1。
可选地，C为Hadamard矩阵，或者Golay矩阵，或者Golay补矩阵，或者DFT矩阵，或者IDFT矩阵。
可选地，c r为某个向量(例如，记为c 0)循环移位不同值构成，即C为循环矩阵，例如，单位向量[1,0,…,0]循环移位形成单位阵。
在一种可能的实现方式即实施例五中，中继设备有R个射频通道，则可以使用R个(例如，不存在网络设备-终端之间的直达链路)或者R+1个(例如，存在网络设备-终端之间的直达链路)不同的时间，每个射频通道按照不同的放大转发矩阵图案使用转发矩阵，从而方便估计各条射频通道对应的链路的信道矩阵H rA r,tG r,r＝0,1,…,R-1。即本实施例中，每个射频通道可以当做一个中继设备。进而，上面所述的实施例三和四中的方法，都可以用于估计各个通道对应的信道。
应该理解，上述实施例主要以下行基带信号模型为例，对于上行有类似的基带信号模型：
y t＝HA tGPs t+FPs t+HAw t+n t,t＝0,1,…,T-1。
Figure PCTCN2022110648-appb-000019
Figure PCTCN2022110648-appb-000020
与下行处理的方式类似，可以估计出上行信道H rA r,tG r和/或F。
需要说明的是，本申请中所述的放大转发矩阵图案中所包含的放大转发矩阵，是指应用于放大转发的中继设备。当中继设备工作于反射状态时(例如，中继设备为反射面板)，则对应的矩阵可以称为反射状态矩阵，或者其它类似的名称，本申请实施例不作任何限定。
S206.终端将测量结果发送给所述网络设备。
当终端估计出上述的结果之后，便可以确定测量结果，所述测量结果可以包括但不限于以下至少一项：信道质量指示(Channel Quality Indicator，简称CQI)、预编码矩阵(Precoding Matrix Indicator、简称PMI)、秩指示(Rank Indicator，简称RI)、信道信息(channel state information，简称CSI)等。
当网络设备接收到终端发送的测量结果之后，可以根据测量结果更新所述配置信息，再指示给中继设备和/或终端。如更新所述配置信息中包括的放大转发系数，放大转发系数的具体组成可以包括放大转发矩阵图案、放大转发矩阵集合、转发向量图案或转发向量集合等，其可用于指示所述中继设备在T个时间内采用不同的转发矩阵向终端转发所述参考信号，T大于等于2。在一些可能的实施方式中，可以更新图1中，两个通道上的放大系数a 0和a 1，或者更新相对放大系数a 0/a 1。即可以更新放大转发矩阵图案中的各个系数，或者系数的相对值，或者，还可以更新相对放大系数a 0/a 1的相位或更新放大系数a 0和a 1的相位差。
除了图1所示的单中继设备和双通道的场景，上述这些更新方式同样适用于包括更多中继设备和/或更多通道的场景。
采用根据测量结果更新后的配置信息进行转发，可以形成系统的正反馈，进一步提升转发性能。
类似的，在其他实施例中，网络设备同样可以根据上述的方法来更新配置信息。
在本申请实施例中，网络设备通过配置用于中继信道测量的参考信号，并通过参考信号的配置信息指示发送设备在大于或等于2的T个时间发送参考信号，且指示中继设备在T个时间内采用不同的转发矩阵转发接收设备，使得接收设备端可以根据不同时间接收到的参考信号进行组合估计，得到中继信道包括直达链路、中继链路等对应的信道测量结果，实现了中继通信场景下的信道精确估计，利于中继通信场景下的性能测试和优化设计。
可选地，当处于上行场景时，网络设备为接收设备，终端为发送设备，请参见图3，图3为本申请实施例提供的另一种测量信道信息的方法的流程示意图；其中，步骤S301-步骤S302与步骤S201-S202类似，配置信息中可包括终端发送参考信号的波束、功率或带宽等信息，此处不再赘述。该方法还包括：
S303.终端在T个时间内向中继设备发送参考信号。例如，终端发送探测参考信号(Sounding reference signal，简称SRS)。其中SRS发送可以周期性的。进一步地，在同一个时隙发送T个SRS，或者在相邻的时隙/相邻上行时间(是指在多次发送机会之间，没有发生上下行切换，从而可以防止信道或者设备状态发生变化，从而影响信道估计性能)内发送T个SRS。当位于相同或相邻时隙内时，有利于保证信道稳定性(防止信道或者设备受到时变，从而影响估计性能)。
S304.中继设备采用不同的转发矩阵向网络设备转发参考信号。
S305.网络设备根据所述放大转发系数测量中继信道。
所述中继信道包括所述网络设备与所述终端存在直连链路的第一信道和/或所述网络设备与所述终端不存在直连链路的第二信道；
S306.网络设备将测量结果发送给终端。
网络设备测量信道的方式请参见图2所示实施例中的描述，此处不再赘述。
除了由网络设备发送参考信号，终端进行信道测量，以及终端发送参考信号，网络设备进行信道测量之外，还可以由中继设备发送参考信号，网络设备和终端分别进行信道测量，或者由网络设备和终端分别发送参考信号，中继设备进行信道测量。
在一种实现方式中，通过获取F和HAG，可以判断终端的覆盖范围。例如，如果F(或者终端与基站的直达链路信道)的质量好于HAG(或者终端通过中继与基站连接的中继链路信道)，则认为终端可以不需要借助于中继与基站进行通信，或者认为终端位于基站的直接覆盖范围内。当终端需要与基站通信时，可以考虑将中继关闭或者静默，从而降低中继对网络中其它用户的干扰或者节省中继功耗。反之，例如，如果F(或者终端与基站的直达链路信道)的质量差于HAG(或者终端通过中继与基站连接的中继链路信道)，则认为终端可以需要借助于中继与基站进行通信，或者认为终端位于中继的覆盖范围内。当终端需要与基站通信时，可以考虑将中继开启，从而提升终端的通信性能。
请参见图4，为本申请实施例提供的又一种测量信道信息的方法的流程示意图；其中，步骤S401-步骤S402与步骤S201-S202类似，配置信息中可包括中继设备发送参考信号的波束、功率或带宽等信息，在步骤S402中，由于中继设备无需进行中继转发，因此配置信息中可以不包括放大转发系数。中继设备也无需执行在T个时间内采用不同的转发矩阵转发参考信号的步骤。此处不再赘述。该方法还包括：
S403.中继设备向网络设备发送参考信号。
S404.中继设备向终端发送参考信号。
S405.网络设备测量网络设备与中继设备之间的信道。
即网络设备可估计信道矩阵H。
S406.终端测量终端与中继设备之间的信道。
即网络设备可估计信道矩阵G。
通过由中继设备发送参考信号，网络设备或终端进行信道估计的方式，可以得到单独的网络设备-中继设备的信道估计结果以及终端-中继设备的信道估计结果，可以与其他的估计结果进行联合使用，得到更多的信道信息。
请参见图5，为本申请实施例提供的又一种测量信道信息的方法的流程示意图；其中，步骤S501-步骤S502与步骤S201-S202类似，配置信息中可包括终端以及网络设备发送参考信号的波束、功率或带宽等信息，在步骤S502中，由于中继设备无需进行中继转发，因此配置信息中可以不包括放大转发系数。中继设备也无需执行在T个时间内采用不同的转发矩阵转发参考信号的步骤。此处不再赘述。该方法还包括：
S503.网络设备向中继设备发送参考信号。
S504.终端向中继设备发送参考信号。
S505.中继设备分别测量网络设备与中继设备之间的信道以及终端与中继设备之间的信道。
即中继设备可以估计信道矩阵H和G。
S506.中继设备将测量结果发送给网络设备。
可以同时发送信道矩阵H和G的估计结果，也可以发与网络设备相关性更强的信道矩阵H的估计结果。
S507.中继设备将测量结果发送给终端。
可以同时发送信道矩阵H和G的估计结果，也可以发与终端相关性更强的信道矩阵G的估计结果。
可选地，中继设备估计H和/或G，反馈给发送设备，从而方便发送设备设计预编码矩阵；或者反馈给接收设备，从而方便接收设备设计预编码矩阵，并进一步将预编码矩阵信息通知接收设备。
例如，中继设备估计H(或者对应的信道信息)，反馈给发送设备；发送设备根据估计到的直达链路信道F、中继链路信道GAH或HAG。进一步恢复GA或者AG。发送设备可以根据以下至少一个信息进行联合设计：H(或者对应的信道信息)、GA、AG、GAH或HAG。
例如，中继设备估计G(或者对应的信道信息)，反馈给发送设备；发送设备根据估计到的直达链路信道F、中继链路信道GAH或HAG。进一步恢复AH或者HA。发送设备可以根据以下至少一个信息进行联合设计：H(或者对应的信道信息)、AH、HA、GAH或HAG。
通过由网络设备和终端分别发送参考信号，中继设备进行信道估计的方式，可以得到单独的网络设备-中继设备的信道估计结果以及终端-中继设备的信道估计结果，可以与其他的估计结果进行联合使用，得到更多的信道信息。
即，图4和图5所述的实施例可以与图2或图3所述的实施例结合使用，从而获得更多的信道信息。
请参见图6，为本申请实施例提供的一种网络设备的组成示意图；用于下行场景中，可包括：
处理单元100，用于配置用于测量信道信息的参考信号的配置信息；
收发单元200，用于将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
可选地，所述不同的转发矩阵在时域上构成正交掩码。
可选地，所述收发单元200还用于将所述配置信息发送给终端。
可选地，当处于上行场景时，处理单元100，用于配置用于测量信道信息的参考信号的配置信息；
收发单元200，用于将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；
其中，所述放大转发系数用于指示所述中继设备在T个时间内采用不同的转发矩阵向所述网络设备转发终端发送的参考信号，T大于或等于2；
所述处理单元100还用于根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
可选地，所述不同的转发矩阵在时域上构成正交掩码。
可选地，所述收发单元200还用于：
所述网络设备将所述配置信息发送给终端。
该网络设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于网络设备的描述，此处不做赘述。
请参照图7，为本申请实施例提供的另一种网络设备的组成示意图；可以包括处理器110、存储器120和总线130。处理器110和存储器120通过总线130连接，该存储器120用于存储指令，该处理器110用于执行该存储器120存储的指令，以实现如上图2-图5对应的方法中网络设备执行的步骤。
进一步的，该网络设备还可以包括输入口140和输出口150。其中，处理器110、存储器 120、输入口140和输出口150可以通过总线130相连。
处理器110用于执行该存储器120存储的指令，以控制输入口140接收信号，并控制输出口150发送信号，完成上述方法中网络设备执行的步骤。其中，输入口140和输出口150可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器120可以集成在所述处理器110中，也可以与所述处理器110分开设置。
作为一种实现方式，输入口140和输出口150的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器110可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的网络设备。即将实现处理器110，输入口140和输出口150功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器110，输入口140和输出口150的功能。
该网络设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于网络设备的描述，此处不做赘述。
请参照图8，为本申请实施例提供的一种中继设备的组成示意图；在下行场景中，可包括：
收发单元300，用于接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；接收所述网络设备在T个时间发送的参考信号，T大于或等于2；
处理单元400，用于根据所述放大转发系数指示所述收发单元在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
当参见图4所示实施例中，中继设备用于发送参考信号时，所述收发单元300可用于在所述T个时间发送分别向所述网络设备和终端发送参考信号；
或者参见图5所示实施例中，中继设备用于测量信道信息时，所述收发单元300刻用于接收所述网络设备和所述终端发送的参考信号，所述中继设备还包括处理单元400，所述处理单元400用于分别测量所述网络设备与所述中继设备之间的信道以及所述终端与所述中继设备之间的信道。
可选地，所述不同的转发矩阵在时域上构成正交掩码。
可选地，当处于上行场景时，收发单元300，用于接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；接收所述终端在T个时间发送的参考信号，T大于或等于2；
处理单元400，用于指示所述收发单元300根据所述放大转发系数在所述T个时间内采用不同的转发矩阵向所述网络设备转发所述参考信号。
在一种可能的实现方式中，所述不同的转发矩阵在时域上构成正交掩码。
该中继设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于中继设备的描述，此处不做赘述。
请参照图9，为本申请实施例提供的另一种中继设备的组成示意图；可以包括处理器210、存储器220、信号放大器230和总线240。处理器210和存储器220通过总线240连接，该存储器220用于存储指令，该信号放大器用于放大接收到的信号，该处理器210用于执行该存储器220存储的指令，以实现如上图2-图5对应的方法中中继设备执行的步骤。
进一步的，该中继设备还可以包括、输入口250和输出口260。其中，处理器210、存储器220、信号放大器、输入口250和输出口260可以通过总线240相连。
处理器210用于执行该存储器220存储的指令，以控制输入口250接收信号，并控制信号放大器对接收信号进行放大，输出口260发送放大后的信号，完成上述方法中中继设备执行的步骤。其中，输入口250和输出口260可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器220可以集成在所述处理器210中，也可以与所述处理器210分开设置。
作为一种实现方式，输入口250和输出口260的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器210可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的终端。即将实现处理器210，输入口250和输出口260功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器210，输入口250和输出口260的功能。
该中继设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于中继设备的描述，此处不做赘述。
请参照图10，为本申请实施例提供的一种终端的组成示意图；在下行场景中，可包括：
收发单元500，用于获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
所述收发单元500还用于接收中继设备根据所述放大转发矩阵系数在T个时间内采用不同的转发矩阵转发的参考信号，T大于或等于2；
处理单元600，用于根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
可选地，所述不同的转发矩阵在时域上构成正交掩码。
可选地，所述收发单元500具体用于：
接收所述网络设备发送的所述配置信息；
或者，接收所述中继设备转发的所述配置信息。
可选地，所述收发单元500还用于将测量结果发送给所述网络设备。
可选地，当处于上行场景时，收发单元500，用于获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
处理单元600，用于指示所述收发单元在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向网络设备转发所述参考信号。
可选地，所述不同的转发矩阵在时域上构成正交掩码。
可选地，所述收发单元500具体用于：
接收所述网络设备发送的所述配置信息；
或者，接收所述中继设备转发的所述配置信息。
在一种可能的实现方式中，所述收发单元500还用于：
将测量结果发送给所述网络设备。
该终端所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中作为终端关于这些内容的描述，此处不做赘述。
请参照图11，为本申请实施例提供的另一种终端的组成示意图；可以包括处理器310、存储器320和总线330。处理器310和存储器320通过总线330连接，该存储器320用于存 储指令，该处理器310用于执行该存储器320存储的指令，以实现如上图2-图5对应的方法中终端执行的步骤。
进一步的，该接收设备还可以包括、输入口340和输出口350。其中，处理器310、存储器320、输入口340和输出口350可以通过总线330相连。
处理器310用于执行该存储器320存储的指令，以控制输入口340接收信号，并控制输出口350发送信号，完成上述方法中终端执行的步骤。其中，输入口340和输出口350可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为输入输出口。所述存储器320可以集成在所述处理器310中，也可以与所述处理器210分开设置。
作为一种实现方式，输入口340和输出口350的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器310可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的终端。即将实现处理器310，输入口340和输出口350功能的程序代码存储在存储器中，通用处理器通过执行存储器中的代码来实现处理器310，输入口340和输出口350的功能。
该接收设备所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中终端关于这些内容的描述，此处不做赘述。
本领域技术人员可以理解，为了便于说明，图7、图9和图11中仅示出了一个存储器和处理器。在实际的控制器中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。
应理解，在本申请实施例中，处理器可以是中央处理单元(Central Processing Unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(Digital Signal Processing，简称DSP)、专用集成电路(Application Specific Integrated Circuit，简称ASIC)、现成可编程门阵列(Field－Programmable Gate Array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。
该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。
该总线除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例提供的方法，本申请实施例还提供一种系统，其包括前述的网络设备、中继设备和终端等。
在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(illustrative logical block，简称ILB)和步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定 应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘)等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (23)

  1. 一种测量信道信息的方法，其特征在于，包括：
    网络设备配置用于测量信道信息的参考信号的配置信息；
    将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；
    在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
  2. 根据权利要求1所述的方法，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述网络设备将所述配置信息发送给终端。
  4. 一种测量信道信息的方法，其特征在于，包括：
    中继设备接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
    接收所述网络设备在T个时间发送的参考信号，T大于或等于2；
    根据所述放大转发系数在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
  5. 根据权利要求4所述的方法，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  6. 一种测量信道信息的方法，其特征在于，包括：
    终端获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
    接收中继设备根据所述放大系数在T个时间内采用不同的转发矩阵转发的参考信号，T大于或等于2；
    根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
  7. 根据权利要求6所述的方法，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  8. 根据权利要求6或7所述的方法，其特征在于，所述终端获取配置信息包括：
    所述终端接收所述网络设备发送的所述配置信息；
    或者，所述终端接收所述中继设备转发的所述配置信息。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    所述终端将测量结果发送给所述网络设备。
  10. 一种网络设备，其特征在于，包括：
    处理单元，用于配置用于测量信道信息的参考信号的配置信息；
    收发单元，用于将所述配置信息发送给中继设备，所述配置信息中包括放大转发系数；在T个时间向所述中继设备发送所述参考信号，T大于或等于2；其中，所述放大转发系数用于指示所述中继设备在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
  11. 根据权利要求10所述的网络设备，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  12. 根据权利要求10所述的网络设备，其特征在于，所述收发单元还用于将所述配置信息发送给终端。
  13. 一种中继设备，其特征在于，包括：
    收发单元，用于接收网络设备发送的配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；接收所述网络设备在T个时间发送的参考信号，T大于或等于2；
    处理单元，用于根据所述放大转发系数指示所述收发单元在所述T个时间内采用不同的转发矩阵向终端转发所述参考信号。
  14. 根据权利要求13所述的中继设备，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  15. 一种终端，其特征在于，包括：
    收发单元，用于获取配置信息，所述配置信息为用于测量信道信息的参考信号的配置信息，所述配置信息中包括放大转发系数；
    所述收发单元还用于接收中继设备根据所述放大转发矩阵系数在T个时间内采用不同的转发矩阵转发的参考信号，T大于或等于2；
    处理单元，用于根据所述放大转发系数测量中继信道，所述中继信道包括第一信道和/或第二信道，所述第一信道为所述网络设备与所述终端存在直连链路的信道，所述第二信道所述网络设备与所述终端不存在直连链路的信道。
  16. 根据权利要求15述的终端，其特征在于，所述不同的转发矩阵在时域上构成正交掩码。
  17. 根据权利要求15或16所述的接收设备，其特征在于，所述收发单元具体用于：
    接收所述网络设备发送的所述配置信息；
    或者，接收所述中继设备转发的所述配置信息。
  18. 根据权利要求17所述的终端，其特征在于，所述收发单元还用于将测量结果发送给所述网络设备。
  19. 一种网络设备，其特征在于，包括：
    处理器、存储器和总线，所述处理器和存储器通过总线连接，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行如权利要求1-3任一项所述的方法。
  20. 一种中继设备，其特征在于，包括：
    处理器、存储器和总线，所述处理器和存储器通过总线连接，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行如权利要求4-5任一项所述的方法。
  21. 一种终端，其特征在于，包括：
    处理器、存储器和总线，所述处理器和存储器通过总线连接，其中，所述存储器用于存储一组程序代码，所述处理器用于调用所述存储器中存储的程序代码，执行如权利要求6-9任一项所述的方法。
  22. 一种计算机可读存储介质，其特征在于，包括：
    所述计算机可读存储介质中存储有指令，当其在计算机上运行时，实现如权利要求1-3或4-5或6-9中任一项所述的方法。
  23. 一种芯片，包括一个或多个处理电路，其中，所述一个或多个处理电路用于实现如权利要求1-3或4-5或6-9中任一项所述的方法。
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