Beam training method, device, terminal equipment and network equipment

Abstract

The present application discloses a beam training method, apparatus, terminal equipment and network equipment, and belongs to the field of communication technology. The beam training method of the present application includes: measuring at least two reference signals for beam training forwarded by an auxiliary device in at least two forwarding modes to obtain measurement information, wherein the measurement information is used to indicate the optimal forwarding mode of the auxiliary device, and the forwarding mode of the auxiliary device is determined by the beam direction of the auxiliary device forwarding signal and the beam phase of the forwarding signal; and reporting the measurement information to the network device. The embodiment of the present application enables the network device to determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a beam training method, device, terminal equipment and network equipment. Background Art

[0002] Future wireless communication systems will involve wireless communication networks assisted by smart surface devices. The terminal device receives signals directly from the network device and signals forwarded by the smart surface device. The superposition of multiple signals received by the terminal device causes frequency selective fading. The beam scanning function defined by 5G New Radio (NR) can be applied to the beam scanning process of the smart surface. However, after the beam direction is determined, due to the influence of the multipath environment, during the actual data transmission process, the terminal will still be affected by the frequency selective fading caused by multipath. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a beam training method, apparatus, terminal equipment and network equipment, which can solve the problem that due to the influence of the multipath environment, the terminal is still affected by the frequency selective fading caused by multipath during actual data transmission.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, a beam training method is provided, which is applied to a terminal device, including:

[0006] measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, where the measurement information is used to indicate an optimal forwarding mode of the auxiliary device, where the forwarding mode of the auxiliary device is determined by a beam direction of a forwarding signal and a beam phase of the forwarded signal by the auxiliary device;

[0007] The measurement information is reported to the network device.

[0008] In a second aspect, a beam training method is provided, which is applied to a network device, including:

[0009] sending at least two reference signals for beam training;

[0010] Obtaining measurement information reported by the terminal device, where the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, where the forwarding mode of the auxiliary device is determined by the beam direction of the forwarded signal and the beam phase of the forwarded signal by the auxiliary device;

[0011] An optimal forwarding mode of the auxiliary device is determined according to the measurement information.

[0012] In a third aspect, a beam training device is provided, which is applied to a terminal device, including:

[0013] a first acquisition module, configured to measure at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, wherein the measurement information is used to indicate an optimal forwarding mode of the auxiliary device, wherein the forwarding mode of the auxiliary device is determined by a beam direction of a forwarding signal and a beam phase of the forwarded signal by the auxiliary device;

[0014] The first reporting module is used to report the measurement information to the network device.

[0015] In a fourth aspect, a beam training device is provided, which is applied to a network device, including:

[0016] A first sending module, configured to send at least two reference signals for beam training;

[0017] a second acquisition module, configured to acquire measurement information reported by a terminal device, wherein the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, wherein the forwarding mode of the auxiliary device is determined by a beam direction of a forwarded signal by the auxiliary device and a beam phase of the forwarded signal;

[0018] The first determining module is used to determine the optimal forwarding mode of the auxiliary device according to the measurement information.

[0019] In a fifth aspect, a terminal device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0020] In a sixth aspect, a network device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the second aspect.

[0021] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0022] In an eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network device program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0023] In an embodiment of the present application, at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes are measured to obtain measurement information; the measurement information is reported to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of a network system applicable to the embodiments of the present application;

[0025] Figure 2 A schematic diagram showing a flow chart of a beam training method according to an embodiment of the present application;

[0026] Figure 3 A second flowchart of the beam training method according to an embodiment of the present application is shown;

[0027] Figure 4 One of the module schematic diagrams showing the beam training device according to an embodiment of the present application;

[0028] Figure 5 A structural block diagram showing a communication device according to an embodiment of the present application;

[0029] Figure 6 A block diagram showing a terminal device according to an embodiment of the present application;

[0030] Figure 7 A second schematic diagram showing a module of a beam training device according to an embodiment of the present application;

[0031] Figure 8 A structural block diagram showing a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0034] In future communication scenarios, there will be situations where hotspot service coverage is enhanced, such as VR, AR services, video services, etc. In such service scenarios, using only the beamforming technology of the base station is not enough to provide sufficient communication rate for the terminal. Therefore, it is necessary to introduce new auxiliary nodes in the network to enhance the signal strength received by the terminal.

[0035] Large Intelligent Surfaces (LIS) are an emerging type of artificial material device; LIS can dynamically or semi-statically adjust its own electromagnetic properties, affecting the reflection or refraction behavior of electromagnetic waves incident to the LIS. Figure 1 As shown, LIS can manipulate the reflected wave / refracted signal of the electromagnetic signal to achieve functions such as beam scanning or beam forming.

[0036] The beam control principle based on the smart surface 13 is as follows. Taking the phase-controlled smart surface as an example, the ideal control phase of the device unit (m, n) is:

[0037]

[0038] in, are the coordinate vectors of the base station 11, the terminal 12, and the device unit (m, n) respectively. If the relative position of the terminal and the smart surface meets the far-field radiation condition, the signal from the smart surface to the terminal is approximately a parallel signal. When the far-field radiation condition is met, corresponding approximate operations can also be performed between the base station 11 and the smart surface 13 .

[0039] For 1-bit discrete phase control smart surface, the ideal compensation phase is mapped to the discrete phase through discretization processing, for example:

[0040]

[0041] The 5G NR protocol provides a function for analog beam scanning. The basic process is that the base station sends signals in different directions with beams in different time periods, and the terminal receives the signals with a fixed receiving beam and selects the most appropriate transmission beam to report to the base station.

[0042] The beam scanning function defined by 5G NR can be applied to the beam scanning process of smart surfaces. However, after the beam direction is determined, due to the influence of the multipath environment, during the actual data transmission process, the terminal will still be affected by the frequency selective fading caused by multipath.

[0043] When the phase of the signal sent by the base station changes, it will affect the phase change of all multipaths in the multipath environment, so it is impossible to achieve the purpose of controlling part of the multipath separately.

[0044] The smart surface device provides a portion of the multipath signal to the terminal and can control the phase of the multipath channel. By changing the phase of part of the multipath channel, the terminal can reduce the impact of frequency selective fading.

[0045] The changes in the multipath phase and amplitude of the wireless channel are random, slow-changing, and affected by the movement / change speed of the terminal and environmental objects (usually expressed as channel coherence time). That is to say, in the frequency domain, if a section of RB resources falls into frequency selective fading, then this section of RB will continue to be in frequency selective fading for a period of time thereafter, and the communication quality is very poor until the multipath channel changes to other situations. Traditional communication systems avoid frequency selective fading through frequency scheduling. After the introduction of the smart surface, the frequency selective fading of the target RB is changed by controlling the phase of some multipaths in the multipath channel. Since the multipath phase control of the smart surface is discrete, such as 0 or π phase control controlled by 1bit, in a multipath channel with slow phase changes, once the optimal multipath phase of the smart surface is determined, it can be valid for a period of time thereafter (avoiding the target RB from being in frequency selective fading). That is, the multipath phase adjustment of the optimal smart surface will not be particularly frequent.

[0046] Based on the above description, the embodiment of the present application provides a beam training method, which is applied to a terminal device, such as Figure 2 As shown, the method includes:

[0047] Step 201: Measure at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, wherein the measurement information is used to indicate the optimal forwarding mode of the auxiliary device, and the forwarding mode of the auxiliary device is determined by the beam direction of the forwarding signal of the auxiliary device and the beam phase of the forwarding signal. It can be understood that the beam direction of the auxiliary device represents the spatial energy distribution characteristics of the forwarded signal; the beam phase of the auxiliary device represents the relative phase of the forwarded signal in the target direction or in the direction with the strongest energy, that is, the difference between the signal phase of the same observation point in the target direction relative to the phase of the signal transmitted by the network device, and the difference between the different beam phases satisfies an integer multiple of 2π / M, where M is the number of beam phases.

[0048] The reference signal is sent by the network device, forwarded by the auxiliary device, and received by the terminal device. In the embodiment of the present application, the auxiliary device may be a smart surface or other device that can realize frequency coherent forwarding.

[0049] In this step, the above-mentioned reference signal is a signal for beam training. Specifically, the above-mentioned reference signal is a signal for determining the beam direction and beam phase of the auxiliary device, or the reference signal includes a first reference signal for determining the beam direction of the auxiliary device and a second reference signal for determining the beam phase of the auxiliary device.

[0050] The above measurement information may include at least one of the following:

[0051] The signal strength of the reference signal;

[0052] The number of the optimal beam direction or the time slot number of the corresponding reference signal or other information that can uniquely determine the beam direction;

[0053] The number of the optimal beam phase or the time slot number of the corresponding reference signal or other information that can uniquely determine the beam phase.

[0054] Step 202: Report the measurement information to the network device.

[0055] Here, the above measurement information is reported to a network device, such as a base station, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding beam, and then reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and optimal beam phase.

[0056] The beam training method of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0057] As a first optional implementation manner, the reference signal includes a first reference signal and a second reference signal;

[0058] The first reference signal is a reference signal sent by the network device and used to determine the beam direction of the auxiliary device;

[0059] The second reference signal is a reference signal sent by the network device and used to determine the beam phase of the auxiliary device.

[0060] Based on this, before measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, the method further includes:

[0061] Receiving first indication information and second indication information sent by the network device;

[0062] The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals;

[0063] The second indication information is the time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal, wherein N and M are positive integers. It can be understood that the beam direction of the auxiliary device forwarding signal corresponding to the N transmission opportunities of the first reference signal is a subset of the actual maximum number of beam directions of the auxiliary device forwarding signal; the beam phase of the auxiliary device forwarding signal corresponding to the M transmission opportunities of the second reference signal is a subset of the actual maximum number of beam phases of the auxiliary device forwarding signal.

[0064] Optionally, the bandwidth of the first reference signal is greater than or equal to a preset bandwidth threshold.

[0065] In an embodiment of the present application, the first reference signal is a broadband signal. For example, the bandwidth of the first reference signal may be full bandwidth or greater than a preset bandwidth threshold to ensure that the multipath resolution is large enough and the accuracy of beam training is minimally affected by multipath frequency selective fading and beam phase.

[0066] Optionally, the first frequency range corresponding to the second reference signal is greater than or equal to a second frequency range, and the second frequency range is a frequency range corresponding to data transmission between the terminal device and the network device.

[0067] In an embodiment of the present application, the second reference signal may be a narrowband signal, and a frequency resource range of the second reference signal is the same as a frequency resource range used for data transmission (eg, a frequency resource range of a semi-static scheduling transmission configuration), or includes a frequency resource range used for data transmission.

[0068] In the first optional implementation manner, measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information includes:

[0069] measuring the first reference signal to obtain first measurement information, where the first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal;

[0070] The second reference signal is measured to obtain second measurement information, where the second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction for forwarding a signal by the auxiliary device within a bandwidth of the second reference signal.

[0071] In this first optional implementation, the optimal beam direction and optimal beam phase of the auxiliary device are determined through two stages of beam training. In the first stage, the network device sends multiple signals (wideband signals are recommended), and the auxiliary device uses different forwarding beams (i.e., different beam directions are required, and beam phases are not restricted) to forward them to the terminal device, and the terminal device performs measurements for the network device to determine the optimal beam direction. In the second stage, the network device sends multiple signals (narrowband signals are recommended, corresponding to or containing frequency resources for data transmission), and the auxiliary device uses the optimal beam direction of the first stage and forwards them to the terminal device using different forwarding beam phases, and the terminal device performs measurements for the network device to determine the optimal beam phase corresponding to the optimal beam direction.

[0072] Optionally, the beam training in the above two stages may be performed periodically or dynamically triggered aperiodically.

[0073] Optionally, the period of the beam phase training and the period of the beam direction training may be different, and the period of the beam phase training is less than or equal to the period of the beam direction training.

[0074] Optionally, when the strength of the second reference signal received is less than a first strength threshold, first application information is reported, where the first application information is information for applying for the end of beam phase training, or information for applying for beam direction training.

[0075] Optionally, when the strength of each of the second reference signals is less than a second strength threshold, or when the strength of the signal transmitting data between the terminal device and the network device is less than a second strength threshold, second application information is reported, and the second application information is information for applying for beam direction training.

[0076] In this implementation, the network device transmits the first reference signal multiple times with the same transmission beam, the smart surface forwards the first reference signal to the terminal device using different forwarding modes, the terminal device uses the same beam to receive the first reference signal forwarded multiple times by the smart surface, and measures the first reference signal to obtain the strength of each first reference signal, and reports the strength of each first reference and / or the number of the optimal beam direction as the above-mentioned first measurement information to the network device. Among them, the optimal beam direction refers to the beam direction corresponding to the first reference signal with the strongest signal strength; then, the network device configures the optimal beam direction to the smart surface, and the smart surface uses the optimal beam direction to forward the second reference signal sent multiple times by the network device, and measures the second reference signal to obtain the strength of each second reference signal, and reports the strength of each second reference signal and / or the number of the optimal forwarding phase as the above-mentioned second measurement information to the network device. Among them, the optimal forwarding phase refers to the forwarding phase corresponding to the second reference signal with the strongest signal strength.

[0077] As a second optional implementation manner, the reference signal used for beam training is a third reference signal;

[0078] The third reference signal is a reference signal sent by the network device for determining the beam direction and beam phase of the auxiliary device, and the number of opportunities for sending the third reference signal is M*N;

[0079] Among them, N is the number of beam directions of the auxiliary device forwarding signals configured by the network device, M is the number of beam phases of each forwarding beam configured by the network device, the sending timing of each third reference signal corresponds to a beam direction and a beam phase of the auxiliary device, and different beam training signals correspond to different forwarding beams and / or beam phases.

[0080] Based on this, before measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, the method further includes:

[0081] Receiving the third indication information sent by the network device:

[0082] The third indication information is the time-frequency resource configuration information of the third reference signal, and the third indication information corresponds to at least M*N sending opportunities, N is less than or equal to the number of beam directions of the auxiliary device forwarding signals, and M is less than or equal to the number of beam phases of the auxiliary device forwarding signals.

[0083] Optionally, the measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes includes:

[0084] measuring the third reference signal to obtain third measurement information, where the third measurement information is information indicating a beam direction and a beam phase of a forwarding signal of the auxiliary device and an optimal combination of subbands within a bandwidth of the third reference signal;

[0085] And / or, measure the third reference signal to obtain fourth measurement information, wherein the fourth measurement information is information for indicating the optimal subband corresponding to the M beam phases corresponding to the optimal beam direction of the auxiliary device forwarding signal within the bandwidth of the third reference signal.

[0086] In this implementation, the network device can configure M*N third reference signals, corresponding to M*N forwarding modes of the auxiliary device (each forwarding mode includes a beam direction and a beam phase), and notify the terminal device of the configuration information of the M*N third reference signals.

[0087] Assuming that it includes K subbands, the M*N*K subbands contained in the third reference signal are measured, and each measurement result corresponds to a combination of a beam direction, a beam phase and a subband. The beam direction, beam phase and subband corresponding to the measurement result with the strongest signal strength are selected as the above-mentioned optimal combination.

[0088] In this second optional implementation, one stage of beam training is used to obtain information on the optimal combination of beam direction and beam phase of the auxiliary device forwarding signal and sub-band, as well as information on the optimal sub-band corresponding to the M beam phases corresponding to the optimal beam direction of the auxiliary device forwarding signal within the bandwidth of the third reference signal.

[0089] Optionally, the measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes includes:

[0090] For a semi-statically scheduled service, measuring the reference signal according to a beam training cycle or after receiving a beam training indication to obtain measurement information;

[0091] The reference signal includes the first reference signal and the second reference signal, or the reference signal includes the second reference signal;

[0092] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes the first measurement information and the second measurement information;

[0093] In a case where the reference signal includes the second reference signal, the measurement information includes the second measurement information.

[0094] Optionally, before the semi-persistently scheduled service is activated, or when the semi-persistently scheduled service is activated, the first reference signal and / or the second reference signal forwarded by the auxiliary device in at least two forwarding modes is measured.

[0095] Optionally, in the beam training method of an embodiment of the present application, the measuring of at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes includes:

[0096] For a dynamically scheduled service, measuring the reference signal according to a beam training cycle or after receiving a beam training indication to obtain measurement information;

[0097] The reference signal includes the first reference signal and the second reference signal, or the reference signal includes the third reference signal;

[0098] In a case where the reference signal includes the first reference signal and the second reference signal, the measurement information includes the first measurement information and the second measurement information;

[0099] In the case where the reference signal is the third reference signal, the measurement information includes the third measurement information and / or the fourth measurement information.

[0100] Optionally, the beam training method of the embodiment of the present application further includes:

[0101] Measuring the channel state information CSI of each subband at different sending timings of the second reference signal or the third reference signal;

[0102] Reporting the CSI of the subband at different sending timings of the second reference signal or the third reference signal to a network device;

[0103] Different sending timings of the second reference signal or the third reference signal correspond to different forwarding modes of the auxiliary device.

[0104] Further optionally, reporting the CSI of the subband at different sending timings of the second reference signal or the third reference signal to the network device includes:

[0105] Reporting the CSI of the best subband at each sending opportunity of the second reference signal;

[0106] Alternatively, the CSI of the best subband at each sending opportunity of the third reference signal is reported.

[0107] Further optionally, reporting the CSI of the subband at different sending timings of the second reference signal or the third reference signal to the network device includes:

[0108] According to the subband CSIs of the M transmission opportunities, determine the CSI of the optimal subband combination and report it to the network device;

[0109] The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal, or the M frequency hopping subbands correspond to M sending opportunities of the third reference signal.

[0110] Optionally, the CSI includes a target indication message, and the target indication message is used to indicate a beam phase corresponding to the CSI.

[0111] For example, a reference signal or a timeslot number or other information is added to the CSI to indicate the beam phase corresponding to the CSI.

[0112] In the embodiment of the present application, the CSI of the subband is measured to ensure that the optimal communication method is used for the dynamically scheduled service.

[0113] The beam training method of the present application is described below in conjunction with specific embodiments.

[0114] Embodiment 1: For semi-static scheduling SPS, the base station configures periodically valid time-frequency resources for the terminal, and the terminal sends a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) on a fixed time slot and fixed time-frequency resource. For such terminal services with relatively fixed time-frequency resources or relatively inflexible and infrequent scheduling, the following beam training process is used.

[0115] 1. The base station notifies the terminal of the period of beam direction training of the intelligent surface, or sends a message to trigger the non-periodic beam direction training process.

[0116] The base station determines the number of candidate beams of the smart surface; optionally, uses the number of supportable beams reported by the smart surface; optionally, the base station selects several beams from the configurable beams of the smart surface according to actual communication conditions and notifies the smart surface.

[0117] The base station configures the parameters of the corresponding reference signal (first reference signal) (such as time-frequency resources, reference signal sequence generation parameters, ports, etc.) according to the number of candidate beams of the smart surface, and the reference signal should be time-division multiplexed. Optionally, the base station notifies the terminal of the number of candidate beams of the smart surface and / or the corresponding reference signal configuration parameters. Optionally, the bandwidth of the reference signal can be full bandwidth or greater than a certain bandwidth threshold to ensure that the multipath resolution is large enough and the accuracy of beam training is not affected by multipath frequency selective fading and beam phase as much as possible.

[0118] 2. The terminal receives the reference signal according to the configuration information of the base station, measures the signal strength, and feeds back the measurement result or the number of the optimal beam direction.

[0119] The base station determines the optimal beam direction of the smart surface according to the report message of the terminal and configures it to the smart surface.

[0120] 3. The base station configures the terminal and the smart surface to perform beam phase training. The beam phase training can be a periodic or message-triggered aperiodic beam phase training process.

[0121] The number of candidate beam phases of the smart surface is notified, or the number of beam phases is determined by the capability of the smart surface (for example, the smart surface intelligently supports 1-bit controlled phase adjustment of 0 or π, two phase states), and the corresponding configuration parameters of the reference signal (same as above).

[0122] The reference signal for beam phase training (second reference signal) is the same as the frequency resource range used for data transmission (eg, frequency resources configured for SPS transmission), or includes the frequency resource range.

[0123] The base station transmits the reference signal with the same transmission beam, and the smart surface forwards the reference signal with different phases at different times according to the beam direction specified by the base station.

[0124] 4. The terminal receives the reference signal according to the information of the base station, measures the strength of each signal, and feeds back the measurement result or the beam number corresponding to the optimal beam phase.

[0125] 5. The base station notifies the smart surface to adjust the beam phase according to the measurement results reported by the terminal.

[0126] Embodiment 2: For dynamically scheduled terminal services, the terminal needs to measure the sub-band CSI of different phases of the same smart surface beam to determine the optimal communication method. The beam training process of the smart surface is as follows:

[0127] 1. The base station conducts beam direction training for the smart surface.

[0128] The terminal selects the optimal beam direction according to the strength of the reference signal RSRP and reports it to the base station. The specific process is the same as that of the first embodiment.

[0129] 2. The base station performs beam phase training for the smart surface.

[0130] The base station sends a reference signal in full bandwidth (sent once or in sub-band time division), and configures the number of reference signals accordingly according to the number of smart surface beam phases to be measured. The configuration and implementation are the same as in the first embodiment.

[0131] 3. The terminal receives the reference signal, measures the sub-band CSI and reports it.

[0132] Optionally, the terminal reports the optimal sub-band CSI respectively according to the number of beam phases of the smart surface, that is, for each beam phase, the terminal reports the optimal sub-band CSI under the beam phase respectively.

[0133] Optionally, the terminal measures the CSI of subband 1 of smart surface beam phase 1 and subband 2 of smart surface beam phase 2 according to the frequency hopping rules (pairing method of frequency hopping subbands, i.e., frequency hopping between subband 1 and subband 2), and reports the optimal frequency hopping subband.

[0134] Further optionally, the CSI of the subband 1 and the CSI of the subband 2 may be weighted to obtain a subband CSI and report it.

[0135] 4. The base station schedules PDSCH according to the reporting result of the terminal.

[0136] Optionally, the base station selects an optimal beam phase according to the reporting results of multiple beam phases, and configures it to the smart surface; the base station sends PDSCH on the corresponding optimal subband.

[0137] Optionally, the base station configures the switching time and switching sequence of the smart surface beam phase; the base station schedules the frequency-hopping PDSCH for the terminal according to the switching time and switching sequence, wherein the frequency-hopping subband is determined by the terminal reporting information.

[0138] For example, the beam phase of the smart surface is switched from phase 1 to phase 2 at the first time, and in phase 1, the optimal subband is the first subband, and in phase 2, the optimal subband is the second subband. PDSCH is sent on the first subband before the first time, and PDSCH is sent on the second subband after the first time.

[0139] Embodiment 3: For dynamically scheduled communication services, a one-stage process is used to complete measurement scheduling.

[0140] Assume that the number of beam directions of the smart surface is N, and the number of phases in each beam direction is M.

[0141] 1. The base station determines the beam direction and number of beams of the smart surface.

[0142] 2. The base station configures the beam direction and beam phase for all smart surfaces.

[0143] Specifically, the base station configures M*N reference signals, which correspond to M*N forwarding modes of the smart surface respectively. The base station notifies the terminal of the configuration parameters of the reference signal and indicates which smart surface beam each reference signal corresponds to.

[0144] 3. The terminal receives the reference signal and performs sub-band CSI measurement and reporting.

[0145] The measurement reporting method is the same as that in the second embodiment.

[0146] Here, based on M*N reference signals, the optimal subband and the corresponding optimal beam direction and beam phase are selected, or, based on M*N reference signals, multiple optimal subbands and the corresponding optimal beam directions and optimal beam phases for frequency hopping are selected, or, multiple optimal subbands and corresponding beam phases for frequency hopping are selected within the M beam phases of one beam direction.

[0147] 4. The base station configures the intelligent surface according to the reporting results of the terminal and schedules the terminal PDSCH.

[0148] The beam training method of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0149] like Figure 3 As shown, the embodiment of the present application also provides a beam training method, which is applied to a network side device, and the method includes:

[0150] Step 301: Send at least two reference signals for beam training.

[0151] In this step, the above-mentioned reference signal is a signal for beam training. Specifically, the above-mentioned reference signal is a signal for determining the beam direction and beam phase of the auxiliary device, or the reference signal includes a first reference signal for determining the beam direction of the auxiliary device and a second reference signal for determining the beam phase of the auxiliary device.

[0152] Step 302: Obtain measurement information reported by the terminal device, wherein the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, and the forwarding mode of the auxiliary device is determined by the beam direction of the signal forwarded by the auxiliary device and the beam phase of the forwarded signal.

[0153] The above measurement information may include at least one of the following:

[0154] The signal strength of the reference signal;

[0155] The number of the optimal beam direction;

[0156] The number of the optimal beam phase.

[0157] Step 303: Determine the optimal forwarding mode of the auxiliary device according to the measurement information.

[0158] Here, the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding beam based on the measurement information, that is, obtain the optimal forwarding mode of the auxiliary device, thereby improving the impact of frequency selective fading by controlling the multipath phase.

[0159] The beam training method of the embodiment of the present application sends at least two reference signals for beam training; obtains measurement information reported by the terminal device; and determines the optimal forwarding mode of the auxiliary device based on the measurement information, that is, determines the optimal beam direction and optimal beam phase of the auxiliary device, thereby improving the impact of frequency selective fading by controlling the multipath phase.

[0160] As a first optional implementation manner, the reference signal includes a first reference signal and a second reference signal;

[0161] The first reference signal is a reference signal used to determine the beam direction of the auxiliary device;

[0162] The second reference signal is a reference signal used to determine a beam phase of the auxiliary device.

[0163] Based on this, before obtaining the measurement information reported by the terminal device, the method further includes:

[0164] Sending first indication information and second indication information to the terminal device:

[0165] The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals;

[0166] The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

[0167] Optionally, before obtaining the measurement information reported by the terminal device, the method further includes:

[0168] Sending first configuration information and second configuration information to the auxiliary device:

[0169] The first configuration information is time domain configuration information of the beam directions of the N forwarding signals of the auxiliary device, and the time domain configuration information corresponds one-to-one to the N sending opportunities of the first reference signal;

[0170] The second configuration information is time domain configuration information of M beam phases corresponding to the optimal beam direction of the auxiliary device, the time domain configuration information corresponds one-to-one to the M sending opportunities of the second reference signal, and the optimal beam direction is determined by the first reference signal.

[0171] Optionally, the measurement information includes first measurement information and second measurement information;

[0172] The first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal;

[0173] The second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction of a signal forwarded by the auxiliary device within a bandwidth of the second reference signal.

[0174] As a second optional implementation manner, the reference signal used for beam training is a third reference signal;

[0175] The third reference signal is a reference signal used to determine the beam direction and beam phase of the auxiliary device, and the number of opportunities for sending the third reference signal is M*N;

[0176] Among them, N is the number of beam directions of the auxiliary device forwarding signals configured by the network device, M is the number of beam phases of each forwarding beam configured by the network device, the sending timing of each third reference signal corresponds to a beam direction and a beam phase of the auxiliary device, and different beam training signals correspond to different forwarding beams and / or beam phases.

[0177] Optionally, before obtaining the measurement information reported by the terminal device, the method further includes:

[0178] The third instruction information sent to the terminal device:

[0179] The third indication information is the time-frequency resource configuration information of the third reference signal, and the third indication information corresponds to at least M*N sending opportunities, N is less than or equal to the number of beam directions of the auxiliary device forwarding signals, and M is less than or equal to the number of beam phases of the auxiliary device forwarding signals.

[0180] Optionally, the beam training method of the embodiment of the present application further includes:

[0181] Sending third configuration information to the auxiliary device:

[0182] The third configuration information is time domain configuration information of the beam directions and beam phases of the M*N forwarding signals of the auxiliary device, and the time domain configuration information corresponds one-to-one to the M*N sending opportunities of the third reference signal.

[0183] Optionally, the measurement information includes third measurement information and / or fourth measurement information,

[0184] The third measurement information is information for indicating the beam direction and beam phase of the auxiliary device forwarding signal and the optimal combination of subbands within the bandwidth of the third reference signal;

[0185] The fourth measurement information is information for indicating an optimal subband corresponding to M beam phases corresponding to an optimal beam direction for forwarding a signal by the auxiliary device within a bandwidth of the third reference signal.

[0186] Optionally, in an embodiment of the present application, for a semi-statically scheduled service, the reference signal includes a first reference signal and a second reference signal, or the reference signal includes the second reference signal;

[0187] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0188] In a case where the reference signal includes the second reference signal, the measurement information includes second measurement information.

[0189] Optionally, in an embodiment of the present application, for a dynamically scheduled service, the reference signal includes a first reference signal and a second reference signal; or, the reference signal includes a third reference signal;

[0190] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0191] In a case where the reference signal is a third reference signal, the measurement information includes third measurement information and / or fourth measurement information;

[0192] The third measurement information is information for indicating the beam direction and beam phase of the auxiliary device forwarding signal and the optimal combination of subbands within the bandwidth of the third reference signal;

[0193] The fourth measurement information is information for indicating optimal subbands corresponding to M beam phases corresponding to optimal beam directions for forwarding signals by the auxiliary device within the bandwidth of the third reference signal.

[0194] Further optionally, the beam training method of the embodiment of the present application further includes:

[0195] The subband CSI information reported by the receiving terminal device corresponds to the measurement information of the subband CSI at different sending times of the second reference signal or the third reference signal.

[0196] Optionally, the subband CSI information includes CSI of an optimal subband at each sending timing of the second reference signal;

[0197] Alternatively, the subband CSI information includes the CSI of the best subband at each transmission timing of the third reference signal;

[0198] Or, the CSI of the subband combination with the best subband CSI information;

[0199] The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal, or the M frequency hopping subbands correspond to M sending opportunities of the third reference signal.

[0200] Optionally, after determining the optimal forwarding mode of the auxiliary device according to the measurement information, the method further includes:

[0201] The data transmission is scheduled using the optimal combination of subbands and the optimal forwarding mode.

[0202] Optionally, the using the optimal combination of the subband and the optimal forwarding mode to schedule data transmission includes:

[0203] Performing data transmission on an optimal subband, wherein the optimal subband is a subband in the optimal combination;

[0204] Alternatively, data transmission is performed sequentially on the M frequency hopping sub-bands of the sub-band combination in a frequency hopping manner.

[0205] Optionally, before the optimal combination of using the subband and the optimal forwarding mode to schedule data transmission, the method further includes:

[0206] Sending fourth configuration information to the auxiliary device, where the fourth configuration information indicates an optimal forwarding mode of the auxiliary device corresponding to an optimal subband for data transmission;

[0207] Alternatively, fifth configuration information is sent to the auxiliary device, where the fifth configuration information indicates forwarding modes of M auxiliary devices corresponding to the M subbands used for data transmission.

[0208] Optionally, the beam training method of the embodiment of the present application further includes:

[0209] Controlling the beam phase of the auxiliary device in at least one of the following ways;

[0210] performing bias processing on array information of the forwarding beam of the auxiliary device;

[0211] The array information of the auxiliary device forwarding beam is calculated according to different discretization indicators.

[0212] In the embodiment of the present application, the beam forming principle of the smart surface is realized by the phase difference of the output signals of each smart surface device. Under the premise of ensuring that the phase difference between the devices remains unchanged, the state of the array is changed as a whole to realize the control of the beam phase.

[0213] For example, Figure 1 , the smart surface is a 1-bit controlled device that achieves a phase reversal of 0 or π. The array information of the current beam is A = (1000, 0100, 0001, 1010), and the array information is increased by an offset of 1. At this time, the outgoing beam direction remains unchanged, but the beam phase is flipped by π.

[0214] The control of the beam phase can also be achieved through the discretization index of the phase of the device output signal.

[0215] For example, in the following formula, Δφ mn The range of is (0, π) and (π, 2π), then the beam phase of the expected outgoing signal should be superimposed as and That is, take the intermediate values ​​of (0, π) and (π, 2π) respectively.

[0216]

[0217] For example, in the formula Δφ mn The range is and Then the beam phase of the expected outgoing signal should be superimposed to 0 and π.

[0218]

[0219] The smart device realizes different beam phases according to different discretization indicators. Combining the above two discretization indicators can make the number of outgoing beam phases of the smart surface greater than the number of device states of the smart device.

[0220] The beam training method of the embodiment of the present application sends at least two reference signals for beam training; obtains measurement information reported by the terminal device; and determines the optimal forwarding mode of the auxiliary device based on the measurement information, that is, determines the optimal beam direction and optimal beam phase of the auxiliary device, thereby improving the impact of frequency selective fading by controlling the multipath phase.

[0221] It should be noted that the above-mentioned beam training method describes the relevant process of downlink. Of course, the embodiment of the present application can also be implemented through the uplink beam training process, that is, the terminal device sends at least two reference signals for beam training, or part of the reference is sent by the network device and the other part is sent by the terminal device; the network device measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, obtains measurement information and sends it to the terminal device; the terminal device determines the optimal forwarding mode of the auxiliary device based on the measurement information.

[0222] It should be noted that the beam training method provided in the embodiment of the present application can be executed by a beam training device, or a control module in the beam training device for executing the beam training method. In the embodiment of the present application, the beam training device provided in the embodiment of the present application is described by taking the beam training method executed by the beam training device as an example.

[0223] like Figure 4 As shown, the embodiment of the present application provides a beam training device 400, which is applied to a terminal device, including:

[0224] A first acquisition module 401 is configured to measure at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, where the measurement information is used to indicate an optimal forwarding mode of the auxiliary device, where the forwarding mode of the auxiliary device is determined by a beam direction of a forwarding signal and a beam phase of the forwarded signal by the auxiliary device;

[0225] The first reporting module 402 is configured to report the measurement information to the network device.

[0226] The beam training device of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0227] In the beam training device of the embodiment of the present application, the reference signal includes a first reference signal and a second reference signal;

[0228] The first reference signal is a reference signal sent by the network device and used to determine the beam direction of the auxiliary device;

[0229] The second reference signal is a reference signal sent by the network device and used to determine the beam phase of the auxiliary device.

[0230] The beam training device of the embodiment of the present application further includes:

[0231] A first receiving module, configured to receive first indication information and second indication information sent by a network device before the first acquiring module measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes;

[0232] The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals;

[0233] The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

[0234] In the beam training device of the embodiment of the present application, the bandwidth of the first reference signal is greater than or equal to a preset bandwidth threshold.

[0235] In the beam training device of the embodiment of the present application, the first frequency range corresponding to the second reference signal is greater than or equal to the second frequency range, and the second frequency range is the frequency range corresponding to data transmission between the terminal device and the network device.

[0236] In the beam training device of the embodiment of the present application, the first acquisition module includes:

[0237] a first acquisition submodule, configured to measure the first reference signal to obtain first measurement information, where the first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal;

[0238] The second acquisition submodule is used to measure the second reference signal to obtain second measurement information, where the second measurement information is used to indicate the optimal beam phase corresponding to the optimal beam direction of the auxiliary device forwarding signal within the bandwidth of the second reference signal.

[0239] In the beam training device of the embodiment of the present application, the reference signal used for beam training is a third reference signal;

[0240] The third reference signal is a reference signal sent by the network device for determining the beam direction and beam phase of the auxiliary device, and the number of opportunities for sending the third reference signal is M*N;

[0241] Among them, N is the number of beam directions of the auxiliary device forwarding signals configured by the network device, M is the number of beam phases of each forwarding beam configured by the network device, the sending timing of each third reference signal corresponds to a beam direction and a beam phase of the auxiliary device, and different beam training signals correspond to different forwarding beams and / or beam phases.

[0242] The beam training device of the embodiment of the present application further includes:

[0243] A second receiving module, configured to receive third indication information sent by the network device before the first acquiring module measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes;

[0244] The third indication information is the time-frequency resource configuration information of the third reference signal, and the third indication information corresponds to at least M*N sending opportunities, N is less than or equal to the number of beam directions of the auxiliary device forwarding signals, and M is less than or equal to the number of beam phases of the auxiliary device forwarding signals.

[0245] In the beam training device of the embodiment of the present application, the first acquisition module is used to measure the third reference signal to obtain third measurement information, where the third measurement information is information indicating the beam direction and beam phase of the auxiliary device forwarding signal and the optimal combination of subbands within the bandwidth of the third reference signal;

[0246] And / or, measure the third reference signal to obtain fourth measurement information, wherein the fourth measurement information is information for indicating the optimal subband corresponding to the M beam phases corresponding to the optimal beam direction of the auxiliary device forwarding signal within the bandwidth of the third reference signal.

[0247] In the beam training device of the embodiment of the present application, the first acquisition module is used to measure the reference signal for the semi-statically scheduled service according to the beam training cycle or after receiving the beam training indication to obtain measurement information;

[0248] The reference signal includes a first reference signal and a second reference signal, or the reference signal includes a second reference signal;

[0249] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0250] In a case where the reference signal includes the second reference signal, the measurement information includes second measurement information.

[0251] In the beam training device of the embodiment of the present application, the first acquisition module is used to measure the reference signal for a dynamically scheduled service according to a beam training cycle or after receiving a beam training indication to obtain measurement information;

[0252] The reference signal includes a first reference signal and a second reference signal, or the reference signal includes a third reference signal;

[0253] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0254] In a case where the reference signal is a third reference signal, the measurement information includes third measurement information and / or fourth measurement information.

[0255] The beam training device of the embodiment of the present application further includes:

[0256] A measurement module, configured to measure the channel state information CSI of each subband at different sending times of the second reference signal or the third reference signal;

[0257] A second reporting module, configured to report the CSI of the subband at different sending times of the second reference signal or the third reference signal to a network device;

[0258] Different sending timings of the second reference signal or the third reference signal correspond to different forwarding modes of the auxiliary device.

[0259] In the beam training device of the embodiment of the present application, the second reporting module is used to report the CSI of the optimal subband at each transmission timing of the second reference signal;

[0260] Alternatively, the CSI of the best subband at each sending opportunity of the third reference signal is reported.

[0261] In the beam training device of the embodiment of the present application, the second reporting module is used to determine the CSI of the optimal subband combination according to the subband CSI of the M transmission opportunities and report it to the network device;

[0262] The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal, or the M frequency hopping subbands correspond to M sending opportunities of the third reference signal.

[0263] The beam training device of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0264] The beam training device in the embodiment of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0265] The beam training device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0266] The beam training device provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0267] Optional, such as Figure 5As shown, the embodiment of the present application also provides a communication device 500, including a processor 501, a memory 502, and a program or instruction stored in the memory 502 and executable on the processor 501. For example, when the communication device 500 is a terminal device, the program or instruction is executed by the processor 501 to implement the various processes of the above-mentioned beam training method embodiment applied to the terminal, and can achieve the same technical effect. When the communication device 500 is a network device, the program or instruction is executed by the processor 501 to implement the various processes of the above-mentioned beam training method embodiment applied to the network device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0268] Figure 6 A schematic diagram of the hardware structure of a terminal device for implementing an embodiment of the present application.

[0269] The terminal device 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610 and other components.

[0270] Those skilled in the art will appreciate that the terminal device 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 6 The terminal structure shown in the figure does not constitute a limitation on the terminal device. The terminal device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0271] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0272] In the embodiment of the present application, the radio frequency unit 601 receives downlink data from the network side device and sends it to the processor 610 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 601 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0273] The memory 609 can be used to store software programs or instructions and various data. The memory 609 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 609 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0274] The processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 610.

[0275] Among them, the processor 610 is used to measure at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, wherein the measurement information is used to indicate the optimal forwarding mode of the auxiliary device, and the forwarding mode of the auxiliary device is determined by the beam direction of the signal forwarded by the auxiliary device and the beam phase of the forwarded signal; the radio frequency unit 601 reports the measurement information to the network device.

[0276] The terminal device of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0277] Optionally, the reference signal includes a first reference signal and a second reference signal;

[0278] The first reference signal is a reference signal sent by the network device and used to determine the beam direction of the auxiliary device;

[0279] The second reference signal is a reference signal sent by the network device and used to determine the beam phase of the auxiliary device.

[0280] Optionally, the processor 610 is further configured to receive, through the radio frequency unit, first indication information and second indication information sent by the network device;

[0281] The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals;

[0282] The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

[0283] Optionally, the bandwidth of the first reference signal is greater than or equal to a preset bandwidth threshold.

[0284] Optionally, the first frequency range corresponding to the second reference signal is greater than or equal to a second frequency range, and the second frequency range is a frequency range corresponding to data transmission between the terminal device and the network device.

[0285] Optionally, the processor 610 is further configured to measure the first reference signal to obtain first measurement information, where the first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal;

[0286] The second reference signal is measured to obtain second measurement information, where the second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction for forwarding a signal by the auxiliary device within a bandwidth of the second reference signal.

[0287] Optionally, the reference signal used for beam training is a third reference signal;

[0288] The third reference signal is a reference signal sent by the network device for determining the beam direction and beam phase of the auxiliary device, and the number of opportunities for sending the third reference signal is M*N;

[0289] Among them, N is the number of beam directions of the auxiliary device forwarding signals configured by the network device, M is the number of beam phases of each forwarding beam configured by the network device, the sending timing of each third reference signal corresponds to a beam direction and a beam phase of the auxiliary device, and different beam training signals correspond to different forwarding beams and / or beam phases.

[0290] Optionally, the processor 610 is further configured to receive, through the radio frequency unit, third indication information sent by the network device;

[0291] The third indication information is the time-frequency resource configuration information of the third reference signal, and the third indication information corresponds to at least M*N sending opportunities, N is less than or equal to the number of beam directions of the auxiliary device forwarding signals, and M is less than or equal to the number of beam phases of the auxiliary device forwarding signals.

[0292] Optionally, the processor 610 is further configured to measure the third reference signal to obtain third measurement information, where the third measurement information is information indicating a beam direction and a beam phase of a forwarding signal of the auxiliary device and an optimal combination of subbands within a bandwidth of the third reference signal;

[0293] And / or, measure the third reference signal to obtain fourth measurement information, wherein the fourth measurement information is information for indicating the optimal subband corresponding to the M beam phases corresponding to the optimal beam direction of the auxiliary device forwarding signal within the bandwidth of the third reference signal.

[0294] Optionally, the processor 610 is further configured to measure, for a semi-statically scheduled service, the reference signal according to a beam training cycle or after receiving a beam training indication, to obtain measurement information;

[0295] The reference signal includes a first reference signal and a second reference signal, or the reference signal includes a second reference signal;

[0296] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0297] In a case where the reference signal includes the second reference signal, the measurement information includes second measurement information.

[0298] Optionally, the processor 610 is further configured to measure, for a dynamically scheduled service, the reference signal according to a beam training cycle or after receiving a beam training indication, to obtain measurement information;

[0299] The reference signal includes a first reference signal and a second reference signal, or the reference signal includes a third reference signal;

[0300] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0301] In a case where the reference signal is a third reference signal, the measurement information includes third measurement information and / or fourth measurement information.

[0302] Optionally, the processor 610 is further configured to measure the channel state information CSI of each subband at different sending times of the second reference signal or the third reference signal; and report the CSI of the subband at different sending times of the second reference signal or the third reference signal to the network device;

[0303] Different sending timings of the second reference signal or the third reference signal correspond to different forwarding modes of the auxiliary device.

[0304] Optionally, the processor 610 is further configured to report the CSI of the optimal subband at each sending timing of the second reference signal;

[0305] Alternatively, the CSI of the best subband at each sending opportunity of the third reference signal is reported.

[0306] Optionally, the processor 610 is further configured to determine, according to the subband CSIs of the M transmission opportunities, the CSI of the optimal subband combination and report it to the network device;

[0307] The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal, or the M frequency hopping subbands correspond to M sending opportunities of the third reference signal.

[0308] The terminal device of the embodiment of the present application measures at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information; and reports the measurement information to the network device, so that the network device can determine the optimal beam direction and optimal beam phase of the auxiliary device forwarding signal, and then can reduce the impact of frequency selective fading caused by the multipath environment based on the optimal beam direction and beam phase.

[0309] like Figure 7 As shown, the embodiment of the present application further provides a beam training device 700, which is applied to a network device, including:

[0310] A first sending module 701 is used to send at least two reference signals for beam training;

[0311] A second acquisition module 702 is used to acquire measurement information reported by the terminal device, where the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, where the forwarding mode of the auxiliary device is determined by the beam direction of the signal forwarded by the auxiliary device and the beam phase of the forwarded signal;

[0312] The first determination module 703 is configured to determine an optimal forwarding mode of the auxiliary device according to the measurement information.

[0313] The beam training device of the embodiment of the present application sends at least two reference signals for beam training; obtains measurement information reported by the terminal device; and determines the optimal forwarding mode of the auxiliary device based on the measurement information, that is, determines the optimal beam direction and optimal beam phase of the auxiliary device, thereby improving the impact of frequency selective fading by controlling the multipath phase.

[0314] In the beam training device of the embodiment of the present application, the reference signal includes a first reference signal and a second reference signal;

[0315] The first reference signal is a reference signal used to determine the beam direction of the auxiliary device;

[0316] The second reference signal is a reference signal used to determine a beam phase of the auxiliary device.

[0317] The beam training device of the embodiment of the present application further includes:

[0318] The second sending module is used to send the first indication information and the second indication information to the terminal device before the second obtaining module obtains the measurement information reported by the terminal device:

[0319] The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals;

[0320] The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

[0321] The beam training device of the embodiment of the present application further includes:

[0322] The third sending module is used to send the first configuration information and the second configuration information to the auxiliary device before the second obtaining module obtains the measurement information reported by the terminal device:

[0323] The first configuration information is time domain configuration information of the beam directions of the N forwarding signals of the auxiliary device, and the time domain configuration information corresponds one-to-one to the N sending opportunities of the first reference signal;

[0324] The second configuration information is time domain configuration information of M beam phases corresponding to the optimal beam direction of the auxiliary device, the time domain configuration information corresponds one-to-one to the M sending opportunities of the second reference signal, and the optimal beam direction is determined by the first reference signal.

[0325] In the beam training device of the embodiment of the present application, the measurement information includes first measurement information and second measurement information;

[0326] The first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal;

[0327] The second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction of a signal forwarded by the auxiliary device within a bandwidth of the second reference signal.

[0328] In the beam training device of the embodiment of the present application, the reference signal is a third reference signal;

[0329] The third reference signal is a reference signal used to determine the beam direction and beam phase of the auxiliary device, and the number of opportunities for sending the third reference signal is M*N;

[0330] Among them, N is the number of beam directions of the auxiliary device forwarding signals configured by the network device, M is the number of beam phases of each forwarding beam configured by the network device, the sending timing of each third reference signal corresponds to a beam direction and a beam phase of the auxiliary device, and different beam training signals correspond to different forwarding beams and / or beam phases.

[0331] The beam training device of the embodiment of the present application further includes:

[0332] The fourth sending module is used for sending third indication information to the terminal device before the second obtaining module obtains the measurement information reported by the terminal device:

[0333] The third indication information is the time-frequency resource configuration information of the third reference signal, and the third indication information corresponds to at least M*N sending opportunities, N is less than or equal to the number of beam directions of the auxiliary device forwarding signals, and M is less than or equal to the number of beam phases of the auxiliary device forwarding signals.

[0334] The beam training device of the embodiment of the present application further includes:

[0335] A fifth sending module, configured to send third configuration information to the auxiliary device:

[0336] The third configuration information is time domain configuration information of the beam directions and beam phases of the M*N forwarding signals of the auxiliary device, and the time domain configuration information corresponds one-to-one to the M*N sending opportunities of the third reference signal.

[0337] In the beam training device of the embodiment of the present application, the measurement information includes third measurement information and / or fourth measurement information,

[0338] The third measurement information is information for indicating the beam direction and beam phase of the auxiliary device forwarding signal and the optimal combination of subbands within the bandwidth of the third reference signal;

[0339] The fourth measurement information is information for indicating an optimal subband corresponding to M beam phases corresponding to an optimal beam direction for forwarding a signal by the auxiliary device within a bandwidth of the third reference signal.

[0340] In the beam training device of the embodiment of the present application, for a semi-statically scheduled service, the reference signal includes a first reference signal and a second reference signal, or the reference signal includes the second reference signal;

[0341] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0342] In a case where the reference signal includes the second reference signal, the measurement information includes second measurement information.

[0343] In the beam training device of the embodiment of the present application, for a dynamically scheduled service, the reference signal includes a first reference signal and a second reference signal; or, the reference signal includes a third reference signal;

[0344] In a case where the reference signal includes a first reference signal and a second reference signal, the measurement information includes first measurement information and second measurement information;

[0345] In a case where the reference signal is a third reference signal, the measurement information includes third measurement information and / or fourth measurement information;

[0346] The third measurement information is information for indicating the beam direction and beam phase of the auxiliary device forwarding signal and the optimal combination of subbands within the bandwidth of the third reference signal;

[0347] The fourth measurement information is information for indicating optimal subbands corresponding to M beam phases corresponding to optimal beam directions for forwarding signals by the auxiliary device within the bandwidth of the third reference signal.

[0348] The beam training device of the embodiment of the present application further includes:

[0349] The third receiving module is used to receive sub-band CSI information reported by the terminal device, where the sub-band CSI information corresponds to measurement information of the sub-band CSI at different sending times of the second reference signal or the third reference signal.

[0350] In the beam training device of the embodiment of the present application, the sub-band CSI information includes the CSI of the optimal sub-band at each transmission timing of the second reference signal;

[0351] Alternatively, the subband CSI information includes the CSI of the best subband at each transmission timing of the third reference signal;

[0352] Or, the CSI of the subband combination with the best subband CSI information;

[0353] The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal, or the M frequency hopping subbands correspond to M sending opportunities of the third reference signal.

[0354] The beam training device of the embodiment of the present application further includes:

[0355] The transmission module is configured to schedule data transmission using an optimal combination of a subband and the optimal forwarding mode after the first determination module determines the optimal forwarding mode of the auxiliary device according to the measurement information.

[0356] In the beam training device of the embodiment of the present application, the transmission module is used to transmit data on an optimal sub-band, and the optimal sub-band is a sub-band in the optimal combination;

[0357] Alternatively, data transmission is performed sequentially on the M frequency hopping sub-bands of the sub-band combination in a frequency hopping manner.

[0358] The beam training device in the embodiment of the present application, before scheduling data transmission using the optimal combination of the subband and the optimal forwarding mode, further includes:

[0359] A sixth sending module, configured to send fourth configuration information to the auxiliary device, where the fourth configuration information indicates an optimal forwarding mode of the auxiliary device corresponding to an optimal subband for data transmission;

[0360] Alternatively, fifth configuration information is sent to the auxiliary device, where the fifth configuration information indicates forwarding modes of M auxiliary devices corresponding to the M subbands used for data transmission.

[0361] The beam training device of the embodiment of the present application further includes:

[0362] A control module, configured to control the beam phase of the auxiliary device in at least one of the following ways;

[0363] performing bias processing on array information of the forwarding beam of the auxiliary device;

[0364] The array information of the auxiliary device forwarding beam is calculated according to different discretization indicators.

[0365] The beam training device of the embodiment of the present application sends at least two reference signals for beam training; obtains measurement information reported by the terminal device; and determines the optimal forwarding mode of the auxiliary device based on the measurement information, that is, determines the optimal beam direction and optimal beam phase of the auxiliary device, thereby improving the impact of frequency selective fading by controlling the multipath phase.

[0366] Specifically, the embodiment of the present application also provides a network device. Figure 8 As shown, the network device 800 includes: an antenna 801, a radio frequency device 802, and a baseband device 803. The antenna 801 is connected to the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802. The radio frequency device 802 processes the received information and sends it out through the antenna 81.

[0367] The frequency band processing device may be located in the baseband device 803 . The method performed by the network device in the above embodiment may be implemented in the baseband device 803 . The baseband device 803 includes a processor 804 and a memory 805 .

[0368] The baseband device 803 may include, for example, at least one baseband board on which a plurality of chips are arranged. Figure 8 As shown, one of the chips is, for example, a processor 804, which is connected to a memory 805 to call a program in the memory 805 to execute the network device operations shown in the above method embodiment.

[0369] The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802 , and the interface may be, for example, a common public radio interface (CPRI for short).

[0370] Specifically, the network device of the embodiment of the present invention further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute. Figure 7 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0371] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned beam training embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0372] The processor is the processor in the terminal device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0373] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network device program or instruction to implement each process of the above-mentioned beam training method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0374] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0375] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0376] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0377] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A beam training method, applied to a terminal device, characterized in that: include: measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, where the measurement information is used to indicate an optimal forwarding mode of the auxiliary device, where the forwarding mode of the auxiliary device is determined by a beam direction of a forwarding signal and a beam phase of the forwarded signal by the auxiliary device; Reporting the measurement information to a network device; The reference signal includes a first reference signal and a second reference signal; The first reference signal is a reference signal sent by the network device and used to determine the beam direction of the auxiliary device; The second reference signal is a reference signal sent by the network device and used to determine the beam phase of the auxiliary device; The second reference signal is forwarded by the auxiliary device using the optimal beam direction corresponding to the first reference signal.

2. The beam training method according to claim 1, characterized in that: Before measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, the method further includes: Receiving first indication information and second indication information sent by the network device; The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals; The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

3. The beam training method according to claim 1 or 2, characterized in that: The bandwidth of the first reference signal is greater than or equal to a preset bandwidth threshold.

4. The beam training method according to claim 1 or 2, characterized in that: The first frequency range corresponding to the second reference signal is greater than or equal to the second frequency range, and the second frequency range is a frequency range corresponding to data transmission between the terminal device and the network device.

5. The beam training method according to claim 1, characterized in that: The measuring at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information includes: measuring the first reference signal to obtain first measurement information, where the first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal; The second reference signal is measured to obtain second measurement information, where the second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction for forwarding a signal by the auxiliary device within a bandwidth of the second reference signal.

6. The beam training method according to claim 1, characterized in that: The measuring of at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes includes: For a semi-statically scheduled service, measuring the reference signal according to a beam training cycle or after receiving a beam training indication to obtain measurement information; The measurement information includes first measurement information and second measurement information.

7. The beam training method according to claim 1, characterized in that: The measuring of at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes includes: For a dynamically scheduled service, measuring the reference signal according to a beam training cycle or after receiving a beam training indication to obtain measurement information; The measurement information includes first measurement information and second measurement information.

8. The beam training method according to claim 7, characterized in that: Also includes: Measuring the channel state information CSI of each subband at different sending timings of the second reference signal; Reporting the CSI of the subband at different sending timings of the second reference signal to the network device; Different sending times of the second reference signal correspond to different forwarding modes of the auxiliary device.

9. The beam training method according to claim 8, characterized in that: The reporting the CSI of the subband at different sending timings of the second reference signal to the network device includes: Report the CSI of the best subband at each sending opportunity of the second reference signal.

10. The beam training method according to claim 8, characterized in that: The reporting the CSI of the subband at different sending timings of the second reference signal to the network device includes: According to the subband CSIs of the M transmission opportunities, determine the CSI of the optimal subband combination and report it to the network device; The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal.

11. A beam training method, applied to a network device, characterized in that: include: sending at least two reference signals for beam training; Obtaining measurement information reported by the terminal device, where the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, where the forwarding mode of the auxiliary device is determined by the beam direction of the forwarded signal and the beam phase of the forwarded signal by the auxiliary device; determining an optimal forwarding mode of the auxiliary device according to the measurement information; The reference signal includes a first reference signal and a second reference signal; The first reference signal is a reference signal used to determine the beam direction of the auxiliary device; The second reference signal is a reference signal used to determine the beam phase of the auxiliary device; The second reference signal is forwarded by the auxiliary device using the optimal beam direction corresponding to the first reference signal.

12. The beam training method according to claim 11, characterized in that: Before obtaining the measurement information reported by the terminal device, the method further includes: Sending first indication information and second indication information to the terminal device: The first indication information is time-frequency resource configuration information of the first reference signal, and the first indication information corresponds to at least N transmission opportunities, where N is less than or equal to the number of beam directions of the auxiliary device forwarding signals; The second indication information is time-frequency resource configuration information of the second reference signal, and the second indication information corresponds to at least M transmission opportunities, where M is less than or equal to the number of beam phases of the auxiliary device forwarding signal.

13. The beam training method according to claim 12, characterized in that: Before obtaining the measurement information reported by the terminal device, the method further includes: Sending first configuration information and second configuration information to the auxiliary device: The first configuration information is time domain configuration information of the beam directions of the N forwarding signals of the auxiliary device, and the time domain configuration information corresponds one-to-one to the N sending opportunities of the first reference signal; The second configuration information is time domain configuration information of M beam phases corresponding to the optimal beam direction of the auxiliary device, the time domain configuration information corresponds one-to-one to the M sending opportunities of the second reference signal, and the optimal beam direction is determined by the first reference signal.

14. The beam training method according to claim 11, characterized in that: The measurement information includes first measurement information and second measurement information; The first measurement information is used to indicate an optimal beam direction for the auxiliary device to forward a signal within a bandwidth of the first reference signal; The second measurement information is used to indicate an optimal beam phase corresponding to an optimal beam direction of a signal forwarded by the auxiliary device within a bandwidth of the second reference signal.

15. The beam training method according to claim 11, characterized in that: For a semi-persistently scheduled service, the measurement information includes first measurement information and second measurement information.

16. The beam training method according to claim 11, characterized in that: For dynamically scheduled services, The measurement information includes first measurement information and second measurement information.

17. The beam training method according to claim 16, characterized in that: Also includes: The subband CSI information reported by the receiving terminal device corresponds to the measurement information of the subband CSI at different sending times of the second reference signal.

18. The beam training method according to claim 17, characterized in that: The subband CSI information includes the CSI of the best subband at each transmission timing of the second reference signal; Or, the CSI of the subband combination with the best subband CSI information; The subband combination includes M frequency hopping subbands paired according to a frequency hopping rule, and the M frequency hopping subbands correspond to M sending opportunities of the second reference signal.

19. The beam training method according to claim 18, characterized in that: After determining the optimal forwarding mode of the auxiliary device according to the measurement information, the method further includes: The data transmission is scheduled using the optimal combination of subbands and the optimal forwarding mode.

20. The beam training method according to claim 19, characterized in that: The optimal combination of using the subband and the optimal forwarding mode to schedule data transmission includes: Performing data transmission on an optimal subband, wherein the optimal subband is a subband in the optimal combination; Alternatively, data transmission is performed sequentially on the M frequency hopping sub-bands of the sub-band combination in a frequency hopping manner.

21. The beam training method according to claim 20, characterized in that: Before scheduling data transmission using the optimal combination of the subband and the optimal forwarding mode, the method further includes: Sending fourth configuration information to the auxiliary device, where the fourth configuration information indicates an optimal forwarding mode of the auxiliary device corresponding to an optimal subband for data transmission; Alternatively, fifth configuration information is sent to the auxiliary device, where the fifth configuration information indicates forwarding modes of M auxiliary devices corresponding to the M subbands used for data transmission.

22. The beam training method according to claim 11, characterized in that: Also includes: Controlling the beam phase of the auxiliary device in at least one of the following ways; performing bias processing on array information of the forwarding beam of the auxiliary device; The array information of the auxiliary device forwarding beam is calculated according to different discretization indicators.

23. A beam training device, applied to a terminal device, characterized in that: include: a first acquisition module, configured to measure at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes to obtain measurement information, wherein the measurement information is used to indicate an optimal forwarding mode of the auxiliary device, wherein the forwarding mode of the auxiliary device is determined by a beam direction of a forwarding signal and a beam phase of the forwarded signal by the auxiliary device; A first reporting module, used to report the measurement information to a network device; The reference signal includes a first reference signal and a second reference signal; The first reference signal is a reference signal sent by the network device and used to determine the beam direction of the auxiliary device; The second reference signal is a reference signal sent by the network device and used to determine the beam phase of the auxiliary device; The second reference signal is forwarded by the auxiliary device using the optimal beam direction corresponding to the first reference signal.

24. A beam training device, applied to a network device, characterized in that: include: A first sending module, configured to send at least two reference signals for beam training; a second acquisition module, configured to acquire measurement information reported by a terminal device, wherein the measurement information is obtained after the terminal device measures the at least two reference signals for beam training forwarded by the auxiliary device in at least two forwarding modes, wherein the forwarding mode of the auxiliary device is determined by a beam direction of a forwarded signal by the auxiliary device and a beam phase of the forwarded signal; A first determination module, configured to determine an optimal forwarding mode of the auxiliary device according to the measurement information; The reference signal includes a first reference signal and a second reference signal; The first reference signal is a reference signal used to determine the beam direction of the auxiliary device; The second reference signal is a reference signal used to determine the beam phase of the auxiliary device; The second reference signal is forwarded by the auxiliary device using the optimal beam direction corresponding to the first reference signal.

25. A terminal device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the beam training method according to any one of claims 1 to 10.

26. A network device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the beam training method according to any one of claims 11 to 22.

27. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the beam training method according to any one of claims 1 to 10 or the steps of the beam training method according to any one of claims 11 to 22 are implemented.

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