Signal measurement configuration method, signal feedback method, and signal measurement configuration and feedback system

Abstract

The present application relates to a signal measurement configuration method, a signal feedback method, and a signal measurement configuration and feedback system. The measurement configuration method is applied to a sending end and comprises: configuring a second-type measurement reference signal for a receiving end; determining a configuration relationship between the second-type measurement reference signal and a first-type measurement reference signal, wherein the first-type measurement reference signal is a measurement reference signal that does not need to be sent; and sending the second-type measurement reference signal to the receiving end and indicating the configuration relationship.

Description

Signal measurement configuration methods, feedback methods, and measurement configuration and feedback systems

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202411434712.4, filed on October 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of wireless communication technology, and in particular to a signal measurement configuration method, a signal feedback method, and a signal measurement configuration and feedback system. Background Technology

[0004] As wireless communication evolves, the number of antennas will increase significantly. However, this increase in antenna number leads to a substantial increase in the overhead of Channel State Information-Reference Signal (CSI-RS). Ultra-large-scale multi-antenna arrays, such as 1024-array MIMO (Multiple Input Multiple Output), will reach 4096 arrays or even higher in the future, resulting in extremely high CSI-RS pilot overhead. Summary of the Invention

[0005] To address the problem of excessive pilot overhead affecting system efficiency in related technologies, this application provides a measurement configuration and feedback scheme that can reduce pilot overhead.

[0006] According to the first aspect of the application, a signal measurement configuration method is provided, applied at a transmitting end, comprising:

[0007] Configure the receiver with a second type of measurement reference signal;

[0008] Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted; and

[0009] The second type of measurement reference signal is sent to the receiving end, indicating the configuration relationship.

[0010] According to a second aspect of the application, a signal feedback method is provided, applied at a receiving end, comprising:

[0011] Receive the second type of measurement reference signal;

[0012] Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted by the transmitting end;

[0013] The second channel state information is determined based on the second type of measurement reference signal; and

[0014] Based on the second channel state information and the configuration relationship, the first channel state information is calculated, wherein the first channel state information corresponds to the first type of measurement reference signal.

[0015] According to a third aspect of the application, a signal measurement configuration and feedback system is provided, comprising:

[0016] The sending end is used to perform the method described in the first aspect; and

[0017] The receiving end is used to execute the method described in the second aspect.

[0018] According to a fourth aspect of this application, a wireless communication device is provided, including a memory storing one or more programs and a processor electrically coupled to the memory and configured to execute one or more programs to perform any method or step or combination thereof in this application.

[0019] According to a fifth aspect of this application, a non-transitory computer-readable storage medium is provided that stores one or more programs configured to, when executed by a processor, cause to perform any method or step or combination thereof in this application.

[0020] The above and other aspects and their implementations are described in more detail in the accompanying drawings, description and claims.

[0021] According to the signal measurement configuration method, signal feedback method, and signal measurement configuration and feedback system provided in this application, by generating and transmitting a second type of measurement reference signal with lower overhead, and determining the configuration relationship between it and a first type of measurement reference signal, the receiving end can determine the channel state information corresponding to the first type of measurement reference signal based on the channel state information obtained from the second type of measurement reference signal and the configuration relationship. This allows the receiving end to obtain the channel state information that would otherwise require a higher-overhead measurement reference signal with a measurement reference signal that has lower channel overhead. Furthermore, the generated and transmitted second type of measurement reference signal can be shared among multiple different receiving ends. Based on different configuration relationships, each receiving end can determine its own channel state information. In other words, this application enables the sharing of measurement reference signals, further reducing the overhead of the measurement reference signals. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings, without exceeding the scope of protection claimed by this application.

[0023] Figure 1 is a schematic diagram of the increase in pilot overhead.

[0024] Figure 2 is a schematic diagram of multiple CSI-RS resources with different beams.

[0025] Figure 3 is a schematic diagram of the existing pilot transmission and measurement feedback configuration method.

[0026] Figure 4 is a flowchart of a signal measurement configuration method applied to a transmitting end according to an embodiment of this application.

[0027] Parts (A) and (B) in Figure 5 are schematic diagrams illustrating an implementation based on a configuration relationship according to an embodiment of this application.

[0028] Figure 6 is a schematic diagram of an implementation based on another configuration relationship according to an embodiment of this application.

[0029] Figure 7 is a schematic diagram of an implementation based on yet another configuration relationship according to an embodiment of this application.

[0030] Figure 8 is a flowchart of a signal measurement configuration method applied to a transmitting end according to another embodiment of this application.

[0031] Figure 9 is a flowchart of a signal feedback method applied to a receiving end according to an embodiment of this application.

[0032] Figure 10 is a schematic diagram of a measurement result recovery method according to an embodiment of this application.

[0033] Figure 11 is a schematic diagram of a measurement result recovery method according to another embodiment of this application.

[0034] Figure 12 is a schematic diagram of the recovery process of the same Type II measurement reference signal at different receivers.

[0035] Figure 13 is a schematic diagram illustrating the principles of this application based on virtual CSI-RS and shared subspace CSI-RS.

[0036] Figure 14 is a flowchart of a signal feedback method applied to a receiving end according to another embodiment of this application.

[0037] Figure 15 is a flowchart of a signal feedback method applied to a receiving end according to another embodiment of this application.

[0038] Figure 16 is a structural diagram of an electronic device provided in this application. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] Throughout the specification and claims, terms may have subtle meanings implied or implied in the context, rather than explicitly stated meanings. Similarly, the phrases “in one embodiment” or “in some embodiments” as used herein do not necessarily refer to the same embodiment, and the phrases “in another embodiment” or “in other embodiments” as used herein do not necessarily refer to different embodiments. The phrases “in one implementation” or “in some implementations” as used herein do not necessarily refer to the same implementation, and the phrases “in another implementation” or “in other implementations” as used herein do not necessarily refer to different implementations. For example, the claimed subject matter includes all or part of a combination of exemplary embodiments or implementations.

[0041] Generally, terms can be understood at least in part from their use in context. For example, terms used herein, such as “and,” “or,” and “and / or,” can include a variety of meanings, which can depend at least in part on the context in which they are used. Typically, “or,” when used in an associative list, such as A, B, or C, means A, B, and C, here used for inclusion, and A, B, or C, here used only for exclusion. Furthermore, the terms “one or more” or “at least one,” as used herein, depend at least in part on the context and can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, and characteristics in a plural sense. Similarly, terms such as “a,” “an,” or “described,” depend at least in part on the context and can be understood to convey either singular or plural usage. Moreover, also depending at least in part on the context, the terms “based on” or “determined by” can be understood not necessarily to indicate a set of exclusive factors; rather, they may allow for the presence of other factors that are not necessarily explicitly described.

[0042] As shown in Figure 1, increasing the number of antennas leads to a significant increase in the overhead of the Channel State Information Measurement Pilot (CSI-RS). Ultra-large-scale multi-antenna arrays, such as 1024-array MIMO, and potentially 4096-array or even higher in the future, result in extremely high CSI-RS pilot overhead.

[0043] While 5G supports beamed CSI-RS transmission, as shown in Figure 2, this method is generally UE-specific. Typically, to meet base station coverage requirements, if there are many users within a cell, different beamed CSI-RS resources need to be transmitted for each user, as shown in Figure 2. Therefore, overall, multiple CSI-RS resources in the system are ultimately transmitted across the entire or near-entire space, resulting in no significant overhead savings.

[0044] In related technologies, the method for sending pilot signals and configuring measurement feedback at the receiving end (e.g., the user end) is shown in Figure 3. CSI-RS1 and CSI-RS2 are generated and sent to UE A and UE B respectively. That is, different pilot signals need to be generated and sent for different users, and the pilot signals dedicated to UEs cannot be fully shared.

[0045] Figure 4 is a flowchart of a signal measurement configuration method applied to a transmitting end according to an embodiment of this application. As shown in Figure 4, the method is applied to the transmitting end and includes the following steps:

[0046] Step S401: Configure the second type of measurement reference signal for the receiving end;

[0047] Step S402: Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted; and

[0048] Step S403: Send the second type of measurement reference signal to the receiving end and indicate the configuration relationship.

[0049] According to some embodiments, the transmitting end generally includes a base station, and may also be a terminal device; the receiving end may be a user terminal. The measurement reference signal involved in this application includes, but is not limited to, CSI-RS, and may also be used for other reference signals with measurement functions, such as synchronization signals, detection signals, etc.

[0050] According to some embodiments, the first type of measurement reference signal configured at the transmitting end is a reference signal with a relatively higher time-frequency spatial density. The frequency domain density, and / or time domain density, and / or number of ports of the first type of measurement reference signal will be relatively large. Measurements based on this reference signal will obtain more comprehensive CSI (Channel State Information) information. The second type of measurement reference signal configured is a reference signal with a relatively lower time-frequency spatial density. The second type of measurement reference signal needs to be actually transmitted according to the configuration relationship. The frequency domain density, and / or time domain density, and / or number of ports of this type of measurement reference signal will be relatively small, so the resource overhead will not be much, achieving the effect of saving costs.

[0051] In this application, the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted or actually generated by the transmitting end, and can be considered as a virtual measurement reference signal. Although the first type of measurement reference signal is not actually generated, it is still shown in the accompanying drawings of the specification for the purpose of facilitating understanding of the technical solution of this application and its configuration relationship with the second type of measurement reference signal.

[0052] For the transmitting end, the first step is to determine the second type of measurement reference signal to be transmitted to the user end. This second type of measurement reference signal can be generated using existing methods for generating measurement reference signals; this application does not impose any restrictions on this. Then, the receiving end is configured, or a configuration relationship between the first and second type of measurement reference signals is agreed upon with the receiving end. This configuration relationship includes subset selection, linear transformation, nonlinear transformation, or a combination of these. After receiving the second channel state information based on the second type of measurement reference signal, the receiving end can determine the first channel state information according to the configuration relationship, wherein the first channel state information corresponds to the first type of measurement reference signal.

[0053] The configuration relationship between the first and second type of measurement reference signals can be represented by A = F(B), where A represents the first type of measurement reference signal, B represents the second type of measurement reference signal, and F represents the configuration relationship, which is actually a function. F can be a linear function or a nonlinear function. Taking a linear function as an example, the relationship between A and B is: A = F(B) = W*B, where the dimension of A is Na*1, the dimension of B is Nb*1, and W represents a linear transformation with a dimension of Na*Nb. For the linear transformation, it can be: part or all columns of the Discrete Fourier Transform matrix or the Discrete Fractional Fourier Transform matrix; part or all columns of the identity matrix I; or other forms of linear transformation matrices, such as part or all columns of the Discrete Fractional Fourier Transform or the Discrete Fractional Fourier Transform; or part or all columns of the transformation matrix corresponding to the "wavelet transform", "Wigner transform", "Hilbert transform", "Laplace transform", "symplectic finite Fourier transform or its inverse transform". The form of W is not limited to part or all columns of the above-mentioned unitary transformation matrix, and can also be other matrix forms.

[0054] According to some embodiments, in addition to linear transformations, the function F can also be a nonlinear transformation, which may include operations such as modulo operations and the introduction of some nonlinear function forms: ReLU (Rectified Linear Unit), Sigmoid function, Tanh function, Leaky ReLU, etc.

[0055] Figures 5 and 6 are schematic diagrams illustrating the implementation of the configuration relationship. Parts (A) and (B) in Figure 5 are schematic diagrams illustrating an implementation of a configuration relationship according to an embodiment of this application. The configuration relationship shown in Figure 5 is a subset selection relationship. As shown in Figure 5, a signal is selected in one or more domains of the first type of measurement reference signal in the time domain, frequency domain, and spatial domain to determine the second type of measurement reference signal based on the selected signal. For example, the first type of measurement reference signal has 32 ports in the spatial domain, and the second type of measurement reference signal has 8 ports in the spatial domain. These 8 ports are selected from the 32 ports, and the second type of measurement reference signal is a subset of the first type of measurement reference signal. The transmitting end configures a subset selection indication to the receiving end. Similarly, in the frequency domain, the first type of measurement reference signal is transmitted on each RB (Resource Block), and the second type of measurement reference signal is transmitted only on 1 / 4 or 1 / 8 of the RBs. In the time domain, the first type of measurement reference signal is transmitted once every 5ms, and the second type of measurement reference signal is transmitted only once every 20ms or every 40ms. It should be noted that the subset selection here is not necessarily uniform; it can also be non-uniform, as shown in part (B) of Figure 5.

[0056] The second type of measurement reference signal is not necessarily a subset of the first type of measurement reference signal. The second type of measurement reference signal may have a lower density in the spatial domain than the first type, but a higher density in the time-frequency domain, as shown in Figure 6. In the spatial domain, an orthogonal basis transform can be performed first, followed by sampling and transmission of the reference signal. According to a specific embodiment, this process involves merging a Fourier transform and a column selection matrix, then using each column of this matrix as pre-encoding to complete the mapping from the spatial antenna to the beam. The port of the first type of measurement reference signal corresponds to the antenna or antenna group, while the second type of measurement reference signal corresponds to the beam. Sampling can be full sampling or partial sampling; Figure 7 shows an example of non-uniform sampling in partial sampling.

[0057] For orthogonal basis transformations, besides the Fourier transform, other similar transformations can be used, such as the fractional Fourier transform and the mathematical transformation corresponding to spherical harmonic expansion. This allows the antenna domain to be transformed to the spatial frequency domain corresponding to the transformation. The definition of spatial frequency is based on a mathematical transformation, which is not unique; therefore, the definition of spatial frequency is not unique either. The spatial frequency corresponding to the Fourier transform is the frequency corresponding to the plane wave expansion.

[0058] According to some embodiments, after determining the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, the transmitting end needs to inform the receiving end of this configuration relationship. According to some embodiments, the transmitting end indicates the configuration relationship to the receiving end via signaling (e.g., higher-layer signaling).

[0059] In this application, according to some embodiments, for different receiving ends, the second type of measurement reference signal sent by the transmitting end to the receiving end can be the same, but the indicated configuration relationships are different. After receiving the second channel state information based on the second type of measurement reference signal, different receiving ends can determine different first channel state information according to their respective corresponding configuration relationships.

[0060] Thus, step S403 can specifically include:

[0061] Send the same type-2 measurement reference signal to different receiving ends; and

[0062] Different configuration relationships are indicated to different receiving ends.

[0063] Figure 8 is a flowchart of a signal measurement configuration method applied to a transmitting end according to another embodiment of this application. Compared with Figure 4, steps S801 to S803 of the method shown in Figure 8 are the same as steps S401 to S403 of Figure 4, except that the method shown in Figure 8 further includes:

[0064] Step S804: Determine a set of configuration relationships with the receiving end, wherein the set of configuration relationships stores multiple functions corresponding to multiple configuration relationships respectively.

[0065] According to some embodiments, the configuration relationship determined by the sending end and the receiving end is not one, but multiple, forming a set of configuration relationships. The sending end and the receiving end store multiple functions corresponding to the multiple configuration relationships respectively.

[0066] According to some embodiments, a linear transformation W may include multiple linear matrices, and a function F may include multiple functions, thereby forming a set of configuration relationships. The sending end selects a linear matrix from the set corresponding to the linear transformation W, or selects a function from the set corresponding to the function F, and notifies the receiving end of the selection information via indication signaling.

[0067] Furthermore, the linear transformation W can be in the form of multiplying multiple linear matrices, corresponding to the definition of multiple sets for storing the linear matrices. For example, the linear transformation W can be in the form of multiplying two linear matrices W1 and W2. Here, W1 is a unitary matrix, and W2 is a precoding matrix or a row / column selection matrix. The transmitter and receiver can define two sets: the first set stores multiple candidate W1 matrix forms, and the second set stores multiple candidate W2 matrix forms. The transmitter selects W1 and W2 matrices from the sets and notifies the receiver of the selection information via indication signaling.

[0068] Furthermore, function F can be the combined action of multiple functions, corresponding to the agreed-upon multiple sets used to store candidate functions. For example, function F can be the combined action of two functions, F1 and F2. F1 is a linear function, and F2 is a nonlinear function. The sending and receiving ends can agree on two sets: the first set stores multiple candidate F1 function forms, and the second set stores multiple candidate F2 function forms. The sending end selects function F1 and function F2 from the sets and notifies the receiving end of the selection information via indication signaling.

[0069] Thus, step S803 can specifically include:

[0070] Select the function corresponding to the configuration relationship from the set of configuration relationships, and notify the receiving end of the selection information of the configuration relationship through indication signaling.

[0071] Figure 9 is a flowchart of a signal feedback method applied to a receiving end according to an embodiment of this application. As shown in Figure 9, the method includes:

[0072] Step S901: Receive the second type of measurement reference signal;

[0073] Step 902: Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted by the transmitting end;

[0074] Step S903: Determine the second channel state information based on the second type of measurement reference signal; and

[0075] Step S904: Calculate first channel state information based on the second channel state information and the configuration relationship, wherein the first channel state information corresponds to the first type of measurement reference signal.

[0076] According to some embodiments, after the transmitting end sends a second type of measurement reference signal, the receiving end receives the second type of measurement reference signal and determines the corresponding configuration relationship. The receiving end determines second channel state information based on the second type of measurement reference signal, and can determine first channel state information based on the second channel state information and the configuration relationship. The first channel state information corresponds to the first type of measurement reference signal, and the first channel state information calculated by the receiving end corresponds to the channel state information obtained under the actual transmission of the first type of measurement reference signal.

[0077] The receiver determines the configuration relationship between the "Type I Measurement Reference Signal" and the "Type II Measurement Reference Signal" based on the configuration signaling from the transmitter, performs the measurement of the reference signal based on the "Type II Measurement Reference Signal," and estimates the response value of the wireless channel. If there are multiple ports, the measurement and channel estimation are performed separately for each port.

[0078] Furthermore, the receiver calculates the channel information that can be obtained based on the "first type of measurement reference signal" according to the configuration relationship between the "second type of measurement reference signal" and the "first type of measurement reference signal", and then performs CSI quantization feedback based on this.

[0079] Figure 10 is a schematic diagram of a measurement result recovery method according to an embodiment of this application. As shown in Figure 10, the "second type of measurement reference signal" is an 8-port signal. The 32-port signal corresponding to the "first type of measurement reference signal" is recovered using an interpolation algorithm; alternatively, it can be recovered to a 32-port signal using a compressed sensing recovery algorithm. Then, based on the measurement results of the 32-port signal, a matching codeword is selected from the corresponding codebook and reported. Similar to the spatial domain, the time-frequency domain achieves the effect of increasing dimensionality and density.

[0080] Figure 11 is a schematic diagram of a measurement result recovery method according to an embodiment of this application. As shown in Figure 11, the "second type of measurement reference signal" is 8 ports, corresponding to 8 beams. It is recovered to 32 ports through inverse discrete Fourier transform. Based on the measurement results of the 32 ports, the matching codeword is selected from the corresponding codebook and reported.

[0081] Figure 12 is a schematic diagram of the recovery process of the same Type II measurement reference signal for different receivers. As shown in Figure 12, multiple receivers can share the same Type II measurement reference signal. Based on the channel measurement results they obtain, different receivers use different recovery algorithms (different user terminals have different relationship configurations, corresponding to different recovery algorithms) to obtain the measurement results of the Type I measurement reference signal, and perform quantization feedback based on the measurement results.

[0082] Figure 13 is a schematic diagram illustrating the principle of this application based on virtual CSI-RS and shared subspace CSI-RS. As shown in Figure 13, the receiving end includes UE A and UE B, corresponding to two CSI measurement processes. The transmitting end sends shared subspace CSI-RS to UE A and UE B, but uses different configuration relationships W1 and W2. Based on the channel measurement results of the shared subspace CSI-RS and the configuration relationships W1 and W2, UE A and UE B can obtain the channel measurement results corresponding to Virtual CSI-RS1 and Virtual CSI-RS2, respectively.

[0083] Figure 14 is a flowchart of a signal feedback method applied to a receiving end according to another embodiment of this application. Compared with Figure 9, steps S1401 to S1404 of the method shown in Figure 14 are the same as steps S901 to S904 of Figure 9, except that the method shown in Figure 14 further includes:

[0084] Step S1405: Determine a set of configuration relationships with the sending end, wherein the set of configuration relationships stores multiple functions corresponding to multiple configuration relationships respectively.

[0085] Figure 15 is a flowchart of a signal feedback method applied to a receiving end according to another embodiment of this application. Compared with Figure 9, steps S1501 to S1504 of the method shown in Figure 15 are the same as steps S901 to S904 of Figure 9, except that the method shown in Figure 15 further includes:

[0086] Step S1505: Report the recommended configuration relationship to the sending end for recommending the configuration relationship.

[0087] According to some embodiments, in order to better suit the needs or preferences of the receiver, the receiver may report to the transmitter the recommended configuration relationship between the first type of measurement reference signal and the second type of measurement reference signal.

[0088] Based on the above-described measurement configuration method and feedback method, according to another aspect of this application, a measurement configuration and feedback system is provided, the system including the above-described transmitting end and receiving end, which respectively execute the above-described measurement configuration method and feedback method.

[0089] In the practical application of this application, according to one embodiment, the CSI reporting configuration generally includes the configuration of a CSI-RS resource used for channel measurement, referred to as a CMR (Channel Measurement Resource). This configuration specifies the reference signal object for the channel measurement task. In conventional methods, one or more sets of actually transmitted CSI-RS resources are typically designated as the CMR. However, the approach presented in this application uses one or more sets of untransmitted or only partially transmitted CSI-RS resources as the CMR, and further indicates its relationship with one or more sets of actually transmitted CSI-RS resources, thereby achieving the effect of measuring high-dimensional, accurate channels with lower overhead. Here, the CSI-RS resource used for CMR configuration is the first type of measurement reference signal mentioned in other embodiments, and the CSI-RS resource with which it establishes a relationship is the second type of measurement reference signal mentioned in other embodiments.

[0090] According to another embodiment, the CSI reporting configuration typically includes a configuration of a resource used for channel measurement, referred to as an IMR (Interference Measurement Resource). This configuration specifies the reference signal object for the interference measurement targeted by this measurement task. In conventional methods, one or more sets of actually transmitted CSI-RS resources are typically designated as the IMR. However, the approach presented in this application uses one or more sets of untransmitted or only partially transmitted CSI-RS resources as the IMR, and further indicates its relationship with one or more sets of actually transmitted CSI-RS resources, thereby achieving the effect of measuring high-dimensional and accurate channels with lower overhead. Here, the CSI-RS resource used for IMR configuration is the first type of measurement reference signal mentioned in other embodiments, and the CSI-RS resource with which it establishes a relationship is the second type of measurement reference signal mentioned in other embodiments.

[0091] According to the measurement configuration method, feedback method, and measurement configuration and feedback system provided in this application, by generating and transmitting a second type of measurement reference signal with lower overhead, and determining the configuration relationship between it and the first type of measurement reference signal, the receiving end can determine the channel state information corresponding to the first type of measurement reference signal based on the channel state information obtained from the second type of measurement reference signal and the configuration relationship. This allows the receiving end to obtain the channel state information that originally required a higher-overhead measurement reference signal with a measurement reference signal that has lower channel overhead. Furthermore, the generated and transmitted second type of measurement reference signal can be shared among multiple different receiving ends. Based on different configuration relationships, each receiving end can determine its own channel state information. That is, this application can achieve measurement reference signal sharing, further reducing the overhead of the measurement reference signal.

[0092] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0093] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be an electrical connection or other forms.

[0095] Referring to Figure 16, Figure 16 provides a wireless communication device including a processor and a memory. The memory stores computer instructions or one or more programs, which, when executed by the processor, cause the processor to execute the computer instructions to implement the methods and refinements shown in Figures 4, 8, 9, 14 and 15.

[0096] It should be understood that the above-described device embodiments are merely illustrative, and the device disclosed in this application can be implemented in other ways. For example, the division of units / modules described in the above embodiments is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units, modules, or components may be combined, integrated into another system, or some features may be ignored or not executed.

[0097] Furthermore, unless otherwise specified, the functional units / modules in the various embodiments of this application can be integrated into one unit / module, or each unit / module can exist physically separately, or two or more units / modules can be integrated together. The integrated units / modules described above can be implemented in hardware or as software program modules.

[0098] If the integrated unit / module is implemented in hardware, the hardware can be digital circuits, analog circuits, etc. The physical implementation of the hardware structure includes, but is not limited to, transistors, memristors, etc. Unless otherwise specified, the processor or chip can be any suitable hardware processor, such as a CPU, GPU, FPGA, DSP, and ASIC, etc. Unless otherwise specified, the on-chip cache, off-chip memory, and storage can be any suitable magnetic or magneto-optical storage medium, such as resistive random access memory (RRAM), dynamic random access memory (DRAM), static random access memory (SRAM), enhanced dynamic random access memory (EDRAM), high-bandwidth memory (HBM), hybrid memory cube (HMC), etc.

[0099] If the integrated unit / module is implemented as a software program module and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer electronic device (which may be a personal computer, server, or network electronic device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0100] This application also provides a non-transitory computer-readable storage medium storing one or more computer programs that, when executed by multiple processors, cause the processors to perform the methods and refinements shown in Figures 4, 8, 9, 14, and 15.

[0101] References to features, advantages, or similar language in this specification do not imply that all features and advantages achievable with this solution should be included or included in any single implementation thereof. Rather, references to features and advantages are understood to mean that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of this solution. Therefore, discussions of features, advantages, and similar language throughout this specification may, but do not necessarily, refer to the same embodiments.

[0102] Furthermore, the features, advantages, and characteristics described herein can be combined in any suitable manner in one or more embodiments. Based on the description herein, those skilled in the art will recognize that this solution can be implemented without one or more specific features or advantages of a particular embodiment. In other instances, additional features and advantages can be appreciated in specific embodiments not presented in all embodiments of this solution.

[0103] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A signal measurement configuration method, applied at a transmitting end, comprising: Configure the receiver with a second type of measurement reference signal; Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted; as well as The second type of measurement reference signal is sent to the receiving end, indicating the configuration relationship.

2. The method of claim 1, wherein, Sending the second type of measurement reference signal to the receiving end and indicating the configuration relationship includes: Send the same type-2 measurement reference signal to different receiving ends; and Different configuration relationships are indicated to different receiving ends.

3. The method of claim 1, further comprising: A set of configuration relationships is determined with the receiving end, wherein the set of configuration relationships stores multiple functions corresponding to multiple configuration relationships respectively; The step of sending the second type of measurement reference signal to the receiving end and indicating the configuration relationship includes: Select the function corresponding to the configuration relationship from the set of configuration relationships, and notify the receiving end of the selection information of the configuration relationship through indication signaling.

4. The method of any one of claims 1 to 3, wherein, The configuration relationship includes selecting a signal in one or more domains of the first type of measurement reference signal, including the time domain, frequency domain, and spatial domain, to determine the second type of measurement reference signal based on the selected signal.

5. The method of any one of claims 1 to 3, wherein, The configuration relationship includes performing a positive basis transformation and sampling in the spatial domain of the first type of measurement reference signal to obtain the second type of measurement reference signal.

6. The method of claim 3, wherein, The configuration relationships include linear transformations, nonlinear transformations, and / or a combination of both.

7. A signal feedback method, applied at a receiving end, comprising: Receive the second type of measurement reference signal; Determine the configuration relationship between the second type of measurement reference signal and the first type of measurement reference signal, wherein the first type of measurement reference signal is a measurement reference signal that does not need to be transmitted by the transmitting end; The second channel state information is determined based on the second type of measurement reference signal; and Based on the second channel state information and the configuration relationship, the first channel state information is calculated, wherein the first channel state information corresponds to the first type of measurement reference signal.

8. The method of claim 7, further comprising: A set of configuration relationships is determined with the sending end, wherein the set of configuration relationships stores multiple functions corresponding to multiple configuration relationships respectively.

9. The method of claim 7 or 8, further comprising: The recommended information of the configuration relationship is reported to the sending end for recommending the configuration relationship.

10. A signal measurement configuration and feedback system, comprising: The sending end is configured to perform the method as described in any one of claims 1 to 6; as well as The receiving end is configured to perform the method as described in any one of claims 7 to 9.

11. A wireless communication device comprising a processor and a memory, wherein, The processor is configured to read code from the memory and execute the method as described in any one of claims 1 to 9.

12. A computer program product comprising computer-readable program medium code stored thereon, the computer-readable program medium code, when executed by a processor, causing the processor to perform the method as described in any one of claims 1 to 9.

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