Channel measurement transmission method, base station, and storage medium

Abstract

The present application discloses a channel measurement transmission method, a base station, a terminal, a storage medium, and a program product. The channel measurement transmission method includes a step (S100) in which a base station acquires channel information between the base station and a terminal and determines a channel change metric parameter based on the channel information, and then a step (S200) in which the base station compares the channel change metric parameter with a preset threshold and executes a channel measurement policy or a signal transmission policy according to the comparison result.

Description

[Technical Field]

[0001] This application is filed based on a Chinese patent application bearing application number 202210696079.0 and filed on June 20, 2022, and claims priority to that Chinese patent application, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, in particular to a channel measurement transmission method, a base station, and storage medium On the body Regarding. [Background technology]

[0003] Currently, multi-antenna technology is widely used in wireless communications to achieve higher spectral efficiency. Base stations transmit signals by forming different weights for different antennas, obtaining shaping gains and improving transmission performance. However, in actual communications, the channel changes over time, but channel measurements are performed periodically. If the channel changes too quickly, the channel information obtained with a longer measurement period will no longer match the channel during transmission, resulting in performance degradation when shaping transmission is performed.

[0004] The current industry practice is for a base station to calculate the terminal's moving speed based on the Doppler frequency shift calculated during channel estimation, thereby estimating the degree of channel variation and assisting in the selection of shaping gain. However, due to the multipath characteristics of the actual channel, only the average Doppler frequency shift can be obtained during estimation. The Doppler frequency shift also includes the fixed frequency offset of the crystal oscillator, and factors such as the angle between the base station and the terminal must also be taken into account. Therefore, calculating the terminal's moving speed to obtain channel variation not only complicates the process, but also leads to inaccurate results. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application include a channel measurement transmission method, a base station, and storage medium Body provide. [Means for solving the problem]

[0006] According to a first aspect, an embodiment of the present application is a channel measurement transmission method applied to a base station, comprising: obtaining channel information between the base station and the terminal, and determining a channel variation metric parameter based on the channel information; comparing the channel variation metric parameter with a preset threshold; and determining a channel measurement policy for channel measurement transmission according to a comparison result. - Steps to be performed, including fruit , The step of executing the channel measurement policy according to the comparison result includes the step of acquiring a resource status of a resource for channel measurement, and shortening a channel measurement period when the resource status is an idle state and the channel change metric parameter is less than a preset threshold. A channel measurement transmission method is provided.

[0007] According to a second aspect, an embodiment of the present application is a channel measurement transmission method applied to a terminal, comprising: A step of acquiring a pilot signal or a downlink channel matrix codebook, and a base station acquiring channel information between the base station and the terminal based on the pilot signal or the downlink channel matrix codebook, and then, based on a preset threshold and a channel variation metric parameter determined by the channel information, , for channel measurement transmission transmitting the pilot signal or the downlink channel matrix codebook to the base station so as to implement a channel measurement policy or a signal transmission policy.

[0008] According to a third aspect, an embodiment of the present application further provides a base station including a memory, a processor, and a computer program stored in the memory and executable by the processor, the processor executing the computer program to perform the channel measurement transmission method described in the first aspect.

[0009] According to a fourth aspect, an embodiment of the present application further provides a terminal including a memory, a processor, and a computer program stored in the memory and executable by the processor, the computer program executing the channel measurement transmission method described in the second aspect when executed by the processor.

[0010] According to a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions for performing the channel measurement transmission method.

[0011] According to a sixth aspect, an embodiment of the present application further provides a computer program product, comprising a computer program or computer instructions stored in a computer-readable storage medium, wherein a processor of a computer device reads the computer program or the computer instructions from the computer-readable storage medium, and the processor executes the computer program or the computer instructions, thereby causing the computer device to perform the channel measurement transmission method. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic diagram illustrating an implementation environment for performing a channel measurement transmission method according to an embodiment of the present application; [Figure 2] 3 is a flowchart of a channel measurement transmission method at a base station according to an embodiment of the present application; [Figure 3] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 4] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 5] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 6] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 7]4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 8] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 9] 4 is a flowchart of a channel measurement transmission method at a base station according to another embodiment of the present application; [Figure 10] 3 is a flowchart of a terminal-side channel measurement transmission method according to an embodiment of the present application; [Figure 11] 4 is a flowchart of a terminal-side channel measurement transmission method according to another embodiment of the present application; [Figure 12] 4 is a flowchart of a terminal-side channel measurement transmission method according to another embodiment of the present application; [Figure 13] 1 is an overall flowchart of a channel measurement transmission method according to an embodiment of the present application; [Figure 14] FIG. 1 is a schematic diagram illustrating a base station according to an embodiment of the present application. [Figure 15] FIG. 1 is a schematic diagram illustrating a configuration of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0013] In order to make the objectives, technical methods and advantages of the present application clearer, the present application will be described in more detail below with reference to the drawings and examples. The specific examples described herein are for illustrating the present application, but are not intended to limit the present application.

[0014] It should be noted that although the flowchart depicts a logical order, in some cases the steps shown or described may be performed in an order different from that depicted in the flowchart. Terms such as "first," "second," etc. in this specification and claims, as well as in the drawings, are used to distinguish between similar entities and are not necessarily used to describe a particular order or priority.

[0015] Currently, multi-antenna technology is widely used in wireless communications to achieve higher spectral efficiency. Base stations transmit signals by forming different weights for different antennas, obtaining shaping gains and improving transmission performance. However, in actual communications, the channel changes over time, but channel measurements are performed periodically. If the channel changes too quickly, the channel information obtained with a longer measurement period will no longer match the channel during transmission, resulting in performance degradation when shaping transmission is performed.

[0016] The current industry practice is for a base station to calculate the terminal's moving speed based on the Doppler frequency shift calculated during channel estimation, thereby estimating the degree of channel variation and assisting in the selection of shaping gain. However, due to the multipath characteristics of the actual channel, only the average Doppler frequency shift can be obtained during estimation. The Doppler frequency shift also includes the fixed frequency offset of the crystal oscillator, and factors such as the angle between the base station and the terminal must also be taken into account. Therefore, calculating the terminal's moving speed to obtain channel variation not only complicates the process, but also leads to inaccurate results.

[0017] Based on this, the embodiments of the present application provide a channel measurement transmission method, a base station, a terminal, a computer-readable storage medium, and a computer program product, which can simply and accurately calculate a channel change metric, and can simply and efficiently adjust a channel measurement period or select a corresponding signal transmission mode.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] As shown in FIG. 1, FIG. 1 is a schematic diagram illustrating an implementation environment for implementing a channel measurement transmission method according to an embodiment of the present application.

[0020] In the example of FIG. 1, the implementation environment includes, but is not limited to, a base station 100 and a terminal 200, which are communicatively connected.

[0021] In this embodiment, the relative positions and numbers of the base station 100 and the terminal 200 may be set according to a specific application scenario, but in the examples of the present application, the relative positions and numbers of the base station 100 and the terminal 200 are not particularly limited.

[0022] The implementation environment for executing the channel measurement transmission method is applicable to a 3G communication network system, an LTE communication network system, a 5G communication network system, a 6G communication network system, and subsequent evolved mobile / fixed communication network systems, but is not particularly limited thereto in the embodiments of the present application.

[0023] The implementation environment shown in FIG. 1 is not intended to limit the scope of the present application and may include more or fewer components than shown, combinations of certain components, or different arrangements of components.

[0024] Based on the above implementation environment, various embodiments of the channel measurement transmission method on the base station side of the present invention will be proposed below.

[0025] As shown in FIG. 2, FIG. 2 is a flowchart of a channel measurement transmission method at a base station side according to one embodiment of the present application, which may be applied to the base station of FIG. 1, and includes, but is not limited to, step S100 and step S200.

[0026] Step S100: Obtain channel information between the base station and the terminal, and determine a channel variation metric parameter based on the channel information.

[0027] Step S200: Compare the channel change metric parameter with a preset threshold, and implement a channel measurement policy or a signal transmission policy according to the comparison result.

[0028] In addition, the above-mentioned channel information between the base station and the terminal may be an uplink channel matrix estimated based on a pilot signal transmitted by the terminal, a downlink channel matrix codebook fed back by the terminal based on a downlink channel measurement pilot signal transmitted by the base station, or other types of information. In the embodiments of the present application, the type of channel information between the base station and the terminal is not particularly limited.

[0029] The channel change metric parameter may be a channel change metric parameter under the condition of an interval time between any two channel measurements, and may represent a channel change metric under the condition of an interval time between two channel measurements. Here, the any two channel measurements may be two adjacent channel measurements or two non-adjacent channel measurements.

[0030] Furthermore, with regard to the derivation method for determining the channel change metric parameters from the above-mentioned channel information, the channel change metric parameters may be calculated by inputting the channel information parameters into a calculation formula, or the channel change metric parameters may be determined by performing a table lookup based on the channel information parameters, or the channel change metric parameters may be calculated by inputting the channel information parameters into a trained neural network model, or the channel change metric parameters may be obtained by other methods, but in the embodiments of the present application, the derivation method for the channel change metric parameters is not particularly limited.

[0031] It should be noted that the comparison result between the channel variation metric parameter and the preset threshold includes the case where the channel variation metric parameter is equal to or greater than the preset threshold and the case where the channel variation metric parameter is less than the preset threshold, and for different comparison results, the embodiment of the present application will implement a corresponding channel measurement policy or signal transmission policy.

[0032] The above-mentioned preset threshold may be set in advance or may be set according to a preset rule depending on the current network environment, and in the embodiments of the present application, the setting method of the preset threshold is not particularly limited.

[0033] According to the technical solution of the embodiment of the present application, the base station obtains channel information between the base station and the terminal, determines a channel variation metric parameter based on the channel information, then compares the channel variation metric parameter with a preset threshold, and implements a channel measurement policy or a signal transmission policy according to the comparison result. According to the technical solution of the embodiment of the present application, the base station can calculate a channel variation metric parameter representing a channel variation metric based on the channel information between the base station and the terminal, which can be implemented simply and efficiently. Furthermore, the base station can adjust a channel measurement period and select a corresponding signal transmission mode according to the comparison result between the channel variation metric parameter and a preset threshold, which can be implemented simply and efficiently.

[0034] Also, as shown in FIG. 3, FIG. 3 is a flowchart of a channel measurement transmission method at a base station side according to another embodiment of the present application, in which the above step S100 of obtaining channel information between a base station and a terminal and determining a channel variation metric parameter based on the channel information includes, but is not limited to, step S310 and step S320.

[0035] Step S310: Obtain channel information between the base station and the terminal in two adjacent channel measurements.

[0036] Step S320: Determine a channel variation metric parameter in the interval time between two adjacent channel measurements based on the channel information.

[0037] In an embodiment of the present application, channel information between a base station and a terminal in two adjacent channel measurements may be obtained, and a channel change metric parameter in the interval time between the two adjacent channel measurements may be determined based on the channel information.

[0038] In addition, if the channel information between the base station and the terminal in the embodiment of the present application is the channel information between the base station and the terminal in two adjacent channel measurements, it can be measured in a timely manner in each period, and the channel measurement policy or signal transmission policy for the next period can be adjusted in a timely manner.

[0039] The method of acquiring channel information between the base station and the terminal in step S100 above includes, but is not limited to, the two embodiments shown in FIGS. 4 and 5, and is as follows:

[0040] As shown in FIG. 4, FIG. 4 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and the acquisition of channel information between the base station and the terminal in the above step S100 includes, but is not limited to, step S410 and step S420.

[0041] Step S410: Acquire a pilot signal transmitted by the terminal.

[0042] Step S420: The uplink channel matrix obtained based on the pilot signal is used as channel information.

[0043] The base station in the embodiment of the present application may obtain a pilot signal transmitted by a terminal, take the uplink channel matrix estimated based on the pilot signal as channel information, and then determine a channel variation metric parameter based on the channel information.

[0044] As shown in FIG. 5, FIG. 5 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and the acquisition of channel information between the base station and the terminal in the above step S100 includes, but is not limited to, steps S510, S520, and S530.

[0045] Step S510: Generate a downlink channel measurement pilot signal and send it to the terminal.

[0046] Step S520: Obtain the downlink channel matrix codebook fed back by the terminal according to the downlink channel measurement pilot signal.

[0047] Step S530: The downlink channel matrix codebook is used as channel information.

[0048] In the embodiment of the present application, the base station generates a downlink channel measurement pilot signal and then transmits the downlink channel measurement pilot signal to the terminal. After receiving the downlink channel measurement pilot signal, the terminal generates a downlink channel matrix codebook based on the downlink channel measurement pilot signal and feeds back the downlink channel matrix codebook to the base station. Finally, after receiving the downlink channel matrix codebook, the base station takes the downlink channel matrix codebook as channel information and then determines a channel variation metric parameter based on the downlink channel matrix codebook.

[0049] Also, as shown in Figure 6, Figure 6 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and the determination of the channel variation metric parameters based on the channel information in the above step S100 includes, but is not limited to, steps S610 and S620.

[0050] Step S610: Generate a channel information covariance matrix based on the channel information.

[0051] Step S620: Calculate a channel variation metric parameter based on the channel information covariance matrix.

[0052] In one embodiment of the present application, after obtaining channel information, the base station constructs a channel information covariance matrix based on the channel information, and calculates a channel variation metric parameter according to the measured channel information covariance matrix according to matrix correlation, thereby representing the channel variation metric under the condition of the interval time between two channel measurements.

[0053] Furthermore, with regard to a generation method for obtaining a channel information covariance matrix from the above-mentioned channel information, the channel information covariance matrix may be calculated by inputting channel information parameters into a calculation formula, the channel information covariance matrix may be determined by performing a table lookup based on the channel information parameters, the channel information covariance matrix may be calculated by inputting channel information parameters into a trained neural network model, or the channel information covariance matrix may be generated by other methods, but in the embodiments of the present application, the generation method of the channel information covariance matrix is ​​not particularly limited.

[0054] In addition, the above step S200 of comparing the channel change metric parameter with a preset threshold and executing a channel measurement policy or a signal transmission policy according to the comparison result may include, but is not limited to, the three implementations shown in Figures 7 to 9.

[0055] As shown in Figure 7, Figure 7 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and when a channel measurement policy is executed according to the comparison result in step S200, the execution of the channel measurement policy according to the comparison result in step S200 includes, but is not limited to, steps S710 and S720.

[0056] Step S710: Obtain the resource status of the currently measured resource.

[0057] Step S720: If the resource state is an idle state and the channel change metric parameter is less than the preset threshold, shorten the channel measurement period.

[0058] In one embodiment of the present application, when the channel change metric parameter is compared with a preset threshold, if the channel change metric parameter is less than the preset threshold, it indicates low channel correlation and fast channel change, and in this case, if there are measurement resources remaining, the channel measurement policy adopted in the embodiment of the present application is to shorten the measurement period and perform channel measurement again.

[0059] Regarding the shortening amount of the measurement period, the greater the difference between the channel change metric parameter and the preset threshold is, the greater the corresponding shortening amount becomes.The greater the difference between the channel change metric parameter and the preset threshold is, the smaller the corresponding shortening amount becomes.

[0060] As shown in Figure 8, Figure 8 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and when a signal transmission policy is executed according to the comparison result in step S200, the execution of the signal transmission policy according to the comparison result in step S200 includes, but is not limited to, step S800.

[0061] Step S800: If the channel variation metric parameter is greater than or equal to a preset threshold, adopt a closed-loop transmission mode to transmit signals.

[0062] In one embodiment of the present application, the channel change metric parameter is compared with a preset threshold, and if the channel change metric parameter is greater than the preset threshold, it indicates high channel correlation and slow channel change. The signal transmission policy adopted in one embodiment of the present application is to perform signal transmission between the base station and the terminal using a closed-loop transmission mode.

[0063] As shown in Figure 9, Figure 9 is a flowchart of a channel measurement transmission method at the base station side according to another embodiment of the present application, and when a signal transmission policy is executed according to the comparison result in step S200, the execution of the signal transmission policy according to the comparison result in step S200 includes, but is not limited to, steps S910 and S920.

[0064] Step S910: The resource status of the currently measured resource is obtained.

[0065] Step S920: If the resource state is a non-idle state and the channel change metric parameter is less than the preset threshold, adopt an open-loop transmission mode to transmit signals.

[0066] In one embodiment of the present application, after comparing the channel change metric parameter with a preset threshold, if the channel change metric parameter is less than the preset threshold but there are no measurement resources, the channel measurement policy adopted in this embodiment of the present application is to abandon the closed-loop transmission mode between the base station and the terminal and select the open-loop transmission mode for signal transmission.

[0067] Based on the above-described implementation environment and the channel measurement transmission method on the base station side, various embodiments of the channel measurement transmission method on the terminal side of the present invention are proposed below.

[0068] As shown in FIG. 10, FIG. 10 is a flowchart of a terminal-side channel measurement transmission method according to one embodiment of the present application, which may be applied to the terminal of FIG. 1, and includes, but is not limited to, step S1010 and step S1020.

[0069] Step S1010: Obtain a pilot signal or a downlink channel matrix codebook.

[0070] Step S1020: The base station obtains channel information between the base station and the terminal based on the pilot signal or the downlink channel matrix codebook, and then sends the pilot signal or the downlink channel matrix codebook to the base station, so that the base station executes a channel measurement policy or a signal transmission policy based on a channel change metric parameter determined by a preset threshold and the channel information.

[0071] In addition, the above channel information may be an uplink channel matrix estimated based on a pilot signal, a downlink channel matrix codebook fed back by a terminal based on a downlink channel measurement pilot signal transmitted by a base station, or other types of information. In the embodiments of the present application, the type of channel information between a base station and a terminal is not particularly limited.

[0072] The channel change metric parameter may be a channel change metric parameter under the condition of an interval time between any two channel measurements, and may represent a channel change metric under the condition of an interval time between two channel measurements. Here, the any two channel measurements may be two adjacent channel measurements or two non-adjacent channel measurements.

[0073] Furthermore, with regard to the derivation method for determining the channel change metric parameters from the above-mentioned channel information, the channel change metric parameters may be calculated by inputting the channel information parameters into a calculation formula, or the channel change metric parameters may be determined by performing a table lookup based on the channel information parameters, or the channel change metric parameters may be calculated by inputting the channel information parameters into a trained neural network model, or the channel change metric parameters may be obtained by other methods, but in the embodiments of the present application, the derivation method for the channel change metric parameters is not particularly limited.

[0074] The above-mentioned preset threshold may be set in advance or may be set according to a preset rule depending on the current network environment, and in the embodiments of the present application, the setting method of the preset threshold is not particularly limited.

[0075] According to the technical solution of the embodiment of the present application, the base station obtains channel information between the base station and the terminal, determines a channel variation metric parameter based on the channel information, then compares the channel variation metric parameter with a preset threshold, and implements a channel measurement policy or a signal transmission policy according to the comparison result. According to the technical solution of the embodiment of the present application, the base station can calculate a channel variation metric parameter representing a channel variation metric based on the channel information between the base station and the terminal, which can be implemented simply and efficiently. Furthermore, the base station can adjust a channel measurement period and select a corresponding signal transmission mode according to the comparison result between the channel variation metric parameter and a preset threshold, which can be implemented simply and efficiently.

[0076] The channel measurement transmission method on the terminal side in the embodiment of the present application corresponds to the channel measurement transmission method on the base station side in the above embodiment, so the specific embodiments and technical effects of the channel measurement transmission method on the terminal side in the embodiment of the present application may refer to the specific embodiments and technical effects of the channel measurement transmission method on the base station side in the above embodiment.

[0077] Also, as shown in FIG. 11, FIG. 11 is a flowchart of a channel measurement transmission method at the terminal side according to another embodiment of the present application, and the transmission of the pilot signal or the downlink channel matrix codebook to the base station in the above step S1020 includes, but is not limited to, step S1100.

[0078] Step S1100: Send the pilot signal or the downlink channel matrix codebook of two adjacent channel measurements to the base station, so that the base station determines the channel variation metric parameter in the interval time between two adjacent channel measurements based on the pilot signal or the downlink channel matrix codebook.

[0079] In an embodiment of the present application, channel information between a base station and a terminal in two adjacent channel measurements may be obtained, and a channel change metric parameter in the interval time between the two adjacent channel measurements may be determined based on the channel information.

[0080] In addition, if the channel information between the base station and the terminal in the embodiment of the present application is the channel information between the base station and the terminal in two adjacent channel measurements, it can be measured in a timely manner in each period, and the channel measurement policy or signal transmission policy for the next period can be adjusted in a timely manner.

[0081] Also, as shown in FIG. 12, FIG. 12 is a flowchart of a terminal-side channel measurement transmission method according to another embodiment of the present application, and the step of obtaining a downlink channel matrix codebook includes, but is not limited to, step S1200.

[0082] Step S1200: Obtain a downlink channel measurement pilot signal of a base station, and generate a downlink channel matrix codebook according to the downlink channel measurement pilot signal.

[0083] In the embodiment of the present application, the base station generates a downlink channel measurement pilot signal and then transmits the downlink channel measurement pilot signal to the terminal. After receiving the downlink channel measurement pilot signal, the terminal generates a downlink channel matrix codebook based on the downlink channel measurement pilot signal and feeds back the downlink channel matrix codebook to the base station. Finally, after receiving the downlink channel matrix codebook, the base station takes the downlink channel matrix codebook as channel information and then determines a channel variation metric parameter based on the downlink channel matrix codebook.

[0084] Based on the above-mentioned implementation environment, the channel measurement transmission method on the base station side, and the channel measurement transmission method on the terminal side, an embodiment of the entire channel measurement transmission method of the present application will be proposed below.

[0085] As shown in FIG. 13, FIG. 13 is an overall flowchart of a channel measurement transmission method according to an embodiment of the present application, which includes the following steps:

[0086] First, the base station obtains channel information between the base station and the terminal from two adjacent channel measurements and constructs a channel information covariance matrix. Next, the base station calculates a channel correlation coefficient, i.e., the above-mentioned channel variation metric parameter, based on the measured channel information covariance matrix and according to the matrix correlation, thereby representing the channel variation metric under the condition of the interval time between two adjacent channel measurements. Next, if the channel correlation coefficient is equal to or greater than a preset threshold, the base station executes the closed-loop transmission mode. If the channel correlation coefficient is less than the preset threshold and measurement resources are available, the base station shortens the measurement period and performs channel measurement again. If the channel correlation coefficient is less than the preset threshold and measurement resources are unavailable, the base station abandons the closed-loop transmission mode and selects the open-loop transmission mode.

[0087] The channel measurement transmission method of the present embodiment may be implemented on a device or chip such as, but not limited to, a digital signal processor (DSP), a field programmable gate array (FPGA), or an application specific integrated circuit (ASIC).

[0088] Based on the above implementation environment, the base station side channel measurement transmission method, the terminal side channel measurement transmission method, and the overall channel measurement transmission method, several specific embodiments of the channel measurement transmission method of the present application are proposed below. Example 1

[0089] TIFF0007822495000001.tif22170

[0090] TIFF0007822495000002.tif46170

[0091] TIFF0007822495000003.tif50170

[0092] Step 3: Compare the channel correlation coefficient with the set threshold, and if 0.92>0.9, it indicates that the channel correlation is high and the channel change is slow, and then transmit the signal in the closed-loop shaping transmission mode. Example 2

[0093] TIFF0007822495000004.tif23170

[0094] TIFF0007822495000005.tif47170

[0095] TIFF0007822495000006.tif52170

[0096] Step 3: Compare the channel correlation coefficient with the set threshold. If it is 0.7<0.9, the channel correlation is low and the channel changes quickly. If it is determined that there are measurement resources, shorten the measurement period to 40 ms and perform channel measurement again, and then perform step 1 again. Example 3

[0097] TIFF0007822495000007.tif23169

[0098] TIFF0007822495000008.tif50170

[0099] TIFF0007822495000009.tif52170

[0100] Step 3: Compare the channel correlation coefficient with the set threshold, and if it is 0.6<0.9, the channel correlation is low and the channel changes quickly. If it is determined that there are no measurement resources, abandon the closed-loop codebook transmission mode and select the open-loop transmission mode.

[0101] Based on the above implementation environment, the channel measurement transmission method on the base station side, and the channel measurement transmission method on the terminal side, various embodiments of the base station, terminal, computer-readable storage medium, and computer program product of the present application are proposed below.

[0102] As shown in Fig. 14, Fig. 14 is a schematic configuration diagram of a base station according to an embodiment of the present application. The embodiment of the present application further discloses a base station 100 including a first memory 120, a first processor 110, and a computer program stored in the first memory 120 and executable by the first processor 110, wherein the first processor 110 executes the computer program to perform one of the base station-side channel measurement transmission methods.

[0103] The first memory 120 may be used as a non-transitory computer-readable storage medium to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, the first memory 120 may include high-speed random access memory, such as at least one magnetic disk memory device, flash memory device, or other non-transitory solid-state memory device. In some embodiments, the first memory 120 may include memory located remotely from the first processor 110, which may be connected to the implementation environment via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0104] The base station 100 in this embodiment may correspond to the base station in the implementation environment of the embodiment shown in Figure 1. Since both belong to the same application concept, both have the same implementation principles and beneficial effects, and therefore will not be described in detail here.

[0105] The non-transitory software programs and instructions required to realize the base station side channel measurement transmission method of the above embodiment are stored in the first memory 120, and when executed by the first processor 110, perform the base station side channel measurement transmission method of the above embodiment, for example, perform the method steps of Figures 2 to 9 above.

[0106] Since the base station 100 in the embodiment of the present application can implement the base station-side channel measurement transmission method in the above embodiment, the specific embodiments and technical effects of the base station 100 in the embodiment of the present application may refer to the specific embodiments and technical effects of the above base station-side channel measurement transmission method.

[0107] 15, which is a schematic configuration diagram of a terminal according to an embodiment of the present application. The embodiment of the present application further discloses a terminal 200 including a second memory 220, a second processor 210, and a computer program stored in the second memory 220 and executable by the second processor 210, wherein the second processor 210 executes the computer program to perform the terminal-side channel measurement transmission method.

[0108] The second memory 220 may be used as a non-transitory computer-readable storage medium to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, the second memory 220 may include high-speed random access memory, such as at least one magnetic disk memory device, flash memory device, or other non-transitory solid-state memory device. In some embodiments, the second memory 220 may include memory located remotely from the second processor 210, and these remote memories may be connected to the implementation environment via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0109] The terminal 200 in this embodiment may correspond to the terminal in the implementation environment of the embodiment shown in Figure 1, and since both belong to the same application concept, they have the same realization principles and beneficial effects, so they will not be described in detail here.

[0110] The non-transitory software programs and instructions required to realize the terminal-side channel measurement transmission method of the above embodiment are stored in the second memory 220, and when executed by the second processor 210, perform the terminal-side channel measurement transmission method of the above embodiment, for example, perform the method steps of Figures 10 to 12 above.

[0111] Since the terminal 200 in the embodiment of the present application can execute the terminal-side channel measurement transmission method of the above embodiment, the specific embodiments and technical effects of the terminal 200 in the embodiment of the present application may refer to the specific embodiments and technical effects of the terminal-side channel measurement transmission method described above.

[0112] An embodiment of the present application further discloses a computer-readable storage medium having stored thereon computer-executable instructions for performing a channel measurement transmission method such as any of the above embodiments.

[0113] Since the computer-readable storage medium of the embodiments of the present application can implement the channel measurement transmission method at the base station side or the terminal side of the above embodiments, the specific embodiments and technical effects of the computer-readable storage medium of the embodiments of the present application may refer to the specific embodiments and technical effects of the channel measurement transmission method at the base station side or the terminal side of the above embodiments.

[0114] Furthermore, one embodiment of the present application discloses a computer program product including a computer program or computer instructions stored in a computer-readable storage medium, wherein a processor of the computer device reads the computer program or computer instructions from the computer-readable storage medium, and when the processor executes the computer program or computer instructions, causes the computer device to perform the above-mentioned channel measurement transmission method.

[0115] Since the computer program product of the embodiments of the present application can implement the channel measurement transmission method at the base station side or the terminal side of the above embodiments, the specific embodiments and technical effects of the computer program product of the embodiments of the present application may refer to the specific embodiments and technical effects of the channel measurement transmission method at the base station side or the terminal side of the above embodiments.

[0116] All or part of the steps in the methods and systems disclosed above may be implemented as software, firmware, hardware, and any suitable combination thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processor, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (e.g., computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or any other medium that can be used to store desired information and that can be accessed by a computer. Additionally, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery media, as known to those skilled in the art.

Claims

1. A channel measurement transmission method applied to a base station, comprising: obtaining channel information between the base station and a terminal, and determining a channel variation metric parameter based on the channel information; comparing the channel change metric parameter with a preset threshold, and executing a channel measurement policy for channel measurement transmission according to the comparison result; The step of executing a channel measurement policy in response to a comparison result includes: acquiring a resource status of a resource for channel measurement, and shortening a channel measurement period when the resource status is an idle state and the channel change metric parameter is less than a preset threshold; Channel measurement transmission method.

2. the step of obtaining channel information between the base station and the terminal and determining a channel variation metric parameter based on the channel information includes: acquiring channel information between the base station and the terminal in two adjacent channel measurements; and determining a channel variation metric parameter in an interval time between the two adjacent channel measurements based on the channel information; 2. The channel measurement transmission method according to claim 1.

3. The step of acquiring channel information between the base station and the terminal includes: acquiring a pilot signal transmitted by the terminal, and setting an uplink channel matrix obtained based on the pilot signal as the channel information; or generating a downlink channel measurement pilot signal and transmitting it to the terminal; obtaining a downlink channel matrix codebook fed back by the terminal according to the downlink channel measurement pilot signal; and using the downlink channel matrix codebook as the channel information; 2. The channel measurement transmission method according to claim 1.

4. determining a channel variation metric parameter based on the channel information, generating a channel information covariance matrix based on the channel information; and calculating a channel variation metric parameter based on the channel information covariance matrix.

2. The channel measurement transmission method according to claim 1.

5. A channel measurement transmission method applied to a base station, comprising: obtaining channel information between the base station and a terminal, and determining a channel variation metric parameter based on the channel information; comparing the channel change metric parameter with a preset threshold and implementing a signal transmission policy for channel measurement transmission according to the comparison result; The step of executing a signal transmission policy in response to a comparison result includes: adopting a closed-loop transmission mode to transmit signals when the channel variation metric parameter is equal to or greater than a predetermined threshold; Obtaining a resource status of a resource for channel measurement, and determining whether the resource status is a non-idle state and the channel change metric parameter is less than a preset threshold. In some cases, the method includes at least one of the steps of: Channel measurement transmission method.

6. The step of acquiring channel information between the base station and the terminal and determining a channel variation metric parameter based on the channel information, comprising: acquiring channel information between the base station and the terminal in two adjacent channel measurements; and determining a channel variation metric parameter in an interval time between the two adjacent channel measurements based on the channel information; 6. The channel measurement transmission method according to claim 5.

7. The step of acquiring channel information between the base station and the terminal comprises: acquiring a pilot signal transmitted by the terminal, and setting an uplink channel matrix obtained based on the pilot signal as the channel information; or generating a downlink channel measurement pilot signal and transmitting it to the terminal; obtaining a downlink channel matrix codebook fed back by the terminal according to the downlink channel measurement pilot signal; and using the downlink channel matrix codebook as the channel information; 6. The channel measurement transmission method according to claim 5.

8. The step of determining a channel variation metric parameter based on the channel information, comprising: generating a channel information covariance matrix based on the channel information; and calculating a channel variation metric parameter based on the channel information covariance matrix.

6. The channel measurement transmission method according to claim 5.

9. A base station comprising: a memory; a processor; and a computer program stored in the memory and executable by the processor, wherein the processor, when executing the computer program, performs the channel measurement transmission method according to any one of claims 1 to 8.

10. A computer-readable storage medium storing computer-executable instructions for carrying out the channel measurement transmission method according to any one of claims 1 to 8.

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