Channel measurement transmission method, base station, terminal, storage medium, and program product

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 with an application number of 202210696079.0 and an application date of June 20, 2022, and claims the priority of the Chinese patent application. All the contents of the Chinese patent application are incorporated herein by reference.

[0002] This application relates to the technical field of communications, particularly to channel measurement transmission methods, base stations, terminals, storage media, and program products.

Background Art

[0003] Currently, in order to achieve higher spectral efficiency, multi-antenna technology is widely used in wireless communications. The base station forms different weights for different antennas to transmit signals, obtains shaping gain, and improves transmission performance. However, in actual communication, the channel changes over time, but channel measurement is performed periodically. If the channel changes too fast, the channel information obtained with a longer measurement period will not match the channel during transmission, resulting in a performance degradation when shaping transmission is performed.

[0004] The method currently used in the industry is that the base station calculates the moving speed of the terminal based on the Doppler frequency shift calculated during channel estimation, thereby estimating the degree of channel change 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. Also, the Doppler frequency shift includes the fixed frequency offset of the crystal oscillator, and factors such as the angle between the base station and the terminal need to be considered. Therefore, calculating the moving speed of the terminal to obtain the channel change not only complicates the processing but also makes the result inaccurate.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of the present application provide a channel measurement transmission method, a base station, a terminal, a storage medium, and a program product. **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, including: acquiring channel information between the base station and a terminal, and determining a channel change metric parameter based on the channel information; comparing the channel change metric parameter with a preset threshold, and executing a channel measurement policy or a signal transmission policy according to a comparison result. The present application provides a channel measurement transmission method.

[0007] According to a second aspect, an embodiment of the present application is a channel measurement transmission method applied to a terminal, including: acquiring a pilot signal or a downlink channel matrix codebook; transmitting the pilot signal or the downlink channel matrix codebook to the base station so that the base station acquires channel information between the base station and the terminal based on the pilot signal or the downlink channel matrix codebook, and then executes a channel measurement policy or a signal transmission policy based on a preset threshold and a channel change metric parameter determined by the channel information. The present application provides a channel measurement transmission method.

[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. When the processor executes the computer program, the channel measurement transmission method described in the first aspect is executed.

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

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

[0011] According to the sixth aspect, an embodiment of the present application includes a computer program or computer instructions stored in a computer-readable storage medium. The processor of the computer device reads the computer program or the computer instructions from the computer-readable storage medium. When the processor executes the computer program or the computer instructions, the computer device further provides a computer program product for executing the above channel measurement and transmission method.

Brief Description of the Drawings

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Embodiments for Carrying Out the Invention

[0013] In order to make the object, technical method and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. The specific embodiments described in this specification are for explaining the present application and are not for limiting the present application.

[0014] Although a logical order is shown in the flowchart, in some cases, the steps illustrated or described in an order different from the flowchart may be executed. Terms such as "first", "second", etc. in this specification, the claims and the above drawings are terms for distinguishing similar objects and are not necessarily used for explaining a specific order or priority.

[0015] Currently, in order to achieve higher spectral efficiency, multi-antenna technology is widely used in wireless communication. The base station forms different weights for different antennas to transmit signals, obtains shaping gain, and improves transmission performance. However, in actual communication, the channel changes over time, while channel measurement is performed periodically. If the channel changes too fast, the channel information obtained with a longer measurement period will not match the channel during transmission, so shaping transmission will cause performance degradation.

[0016] The method currently used in the industry is that the base station calculates the moving speed of the terminal based on the Doppler frequency shift calculated during channel estimation, thereby estimating the degree of channel change 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. In addition, 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 need to be considered. Therefore, calculating the moving speed of the terminal to obtain the channel change not only complicates the processing but also makes the result inaccurate.

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

[0018] Hereinafter, the embodiments of the present application will be further described with reference to the drawings.

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

[0020] In the example of FIG. 1, this implementation environment includes a base station 100 and a terminal 200, but is not limited thereto, and the base station 100 and the terminal 200 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 specific application scenarios. However, in the embodiments 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 3G communication network systems, LTE communication network systems, 5G communication network systems, 6G communication network systems, and subsequent evolved mobile / fixed communication network systems, etc. However, in the embodiments of the present application, it is not particularly limited thereto.

[0023] The implementation environment shown in FIG. 1 does not limit the embodiments of the present application, and may include more or fewer components than shown in the figure, combine specific components, or include different component arrangements.

[0024] Based on the above implementation environment, the following proposes each embodiment of the channel measurement transmission method on the base station side of the present application.

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

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

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

[0028] Note that the channel information between the base station and the terminal described above may be an uplink channel matrix estimated based on a pilot signal transmitted by the terminal, may be a downlink channel matrix codebook fed back by the terminal based on a downlink channel measurement pilot signal distributed by the base station, or may be 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] Note that the above channel change metric parameter may be a channel change metric parameter under the condition of the interval time between any two channel measurements, and can represent the channel change metric under the condition of the interval time between two channel measurements. Here, the above any two channel measurements may be two adjacent channel measurements or two non-adjacent channel measurements.

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

[0031] Note that the comparison result between the above channel change metric parameter and a preset threshold includes the case where the channel change metric parameter is greater than or equal to the preset threshold and the case where the channel change metric parameter is less than the preset threshold. For different comparison results, the embodiments of the present application execute corresponding channel measurement policies or signal transmission policies.

[0032] The above-mentioned preset threshold value may be preset, or may be set according to preset rules according to the current network environment. In the embodiments of the present application, the setting method of the preset threshold value is not particularly limited.

[0033] According to the technical solution according to the embodiment of the present application, the base station acquires channel information between the base station and the terminal, determines a channel change metric parameter based on the channel information, and then compares the channel change metric parameter with a preset threshold value, and executes a channel measurement policy or a signal transmission policy according to the comparison result. According to the technical solution according to the embodiment of the present application, the base station can calculate a channel change metric parameter representing the channel change metric based on the channel information between the base station and the terminal, and can be realized simply and efficiently. In addition, according to the comparison result between the channel change metric parameter and the preset threshold value, the channel measurement period can be adjusted, and the corresponding signal transmission mode can be selected, and it can be realized simply and efficiently.

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

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

[0036] Step S320: Determine a channel change metric parameter during 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 is obtained, and based on the channel information, a channel change metric parameter during an interval time between two adjacent channel measurements may be determined.

[0038] Note that when 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 in the next period can be adjusted in a timely manner.

[0039] Note that the method for obtaining the channel information between the base station and the terminal in step S100 above includes two implementations in FIGS. 4 and 5, but is not limited thereto, and is as follows respectively.

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

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

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

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

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

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

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

[0047] Step S530: Use the downlink channel matrix codebook as channel information.

[0048] The base station of the embodiment of the present application generates a downlink channel measurement pilot signal, and then transmits the downlink channel measurement pilot signal to the terminal. When the terminal receives the downlink channel measurement pilot signal, it 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, when the base station receives the downlink channel matrix codebook, it uses the downlink channel matrix codebook as channel information, and then determines a channel change metric parameter based on the downlink channel matrix codebook.

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

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

[0051] Step S620: Calculate a channel change 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 change metric parameter according to the matrix correlation based on the measured channel information covariance matrix, thereby representing the channel change metric under the condition of the interval time between two channel measurements.

[0053] Also, regarding the generation method for obtaining the channel information covariance matrix from the above channel information, the channel information covariance matrix may be calculated by inputting the channel information parameter into a calculation formula, or the channel information covariance matrix may be determined by performing a table search based on the channel information parameter, or the channel information covariance matrix may be calculated by inputting the channel information parameter into a trained neural network model, or the channel information covariance matrix may be generated by other methods. However, in the embodiments of the present application, the generation method of the channel information covariance matrix is not particularly limited.

[0054] Note that 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 three implementations in FIGS. 7 to 9, but is not limited thereto.

[0055] As shown in FIG. 7, FIG. 7 is a flowchart of a channel measurement and transmission method on the base station side according to another embodiment of the present application. When executing a channel measurement policy 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, step S710 and step S720.

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

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

[0058] In an embodiment of the present application, as a result of comparing the channel change metric parameter with a preset threshold, if the channel change metric parameter is less than the preset threshold, it indicates that the channel correlation is low and the channel changes rapidly. In this case, if measurement resources remain, 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 reduction width of the above measurement period, the smaller the difference between the channel change metric parameter being less than the preset threshold and the preset threshold, the smaller the corresponding reduction width; the larger the difference between the channel change metric parameter being less than the preset threshold and the preset threshold, the larger the corresponding reduction width.

[0060] As shown in FIG. 8, FIG. 8 is a flowchart of a channel measurement transmission method on the base station side according to another embodiment of the present application. When executing a signal transmission policy according to the comparison result in step S200, the execution of the signal transmission policy according to the comparison result in step S200 includes step S800, but is not limited thereto.

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

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

[0063] As shown in FIG. 9, FIG. 9 is a flowchart of a channel measurement transmission method on the base station side according to another embodiment of the present application. When executing a signal transmission policy 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: Obtain the resource state of the currently measured resource.

[0065] Step S920: When the resource state is a non-idle state and the channel change metric parameter is less than the preset threshold, perform signal transmission by adopting an open-loop transmission mode.

[0066] In one embodiment of the present application, as a result of comparing the channel change metric parameter with a preset threshold, if the channel change metric parameter is less than the preset threshold but there is no measurement resource, the channel measurement policy adopted in the 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 to perform signal transmission.

[0067] Based on the above implementation environment and the channel measurement transmission method on the base station side, each embodiment of the channel measurement transmission method on the terminal side of the present application is proposed as follows.

[0068] As shown in FIG. 10, FIG. 10 is a flowchart of a channel measurement and transmission method on the terminal side according to an embodiment of the present application. This channel measurement and transmission method may be applied to the terminal in FIG. 1 and includes, but is not limited to, steps S1010 and 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 transmits the pilot signal or the downlink channel matrix codebook to the base station so as to execute 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] Note that the above channel information may be an uplink channel matrix estimated based on a pilot signal, or 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.

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

[0073] Regarding the derivation method for determining the channel change metric parameter from the above channel information, the channel change metric parameter may be calculated by inputting the channel information parameter into a calculation formula, or a table search may be performed based on the channel information parameter to determine the channel change metric parameter, or the channel information parameter may be input into a trained neural network model to calculate the channel change metric parameter, or the channel change metric parameter may be obtained by other methods. However, in the embodiments of the present application, the derivation method of the channel change metric parameter is not particularly limited.

[0074] The above preset threshold value may be preset, or may be set according to a preset rule according to the current network environment. In the embodiments of the present application, the setting method of the preset threshold value is not particularly limited.

[0075] According to the technical solution of the embodiments of the present application, the base station acquires the channel information between the base station and the terminal, determines the channel change metric parameter based on the channel information, then compares the channel change metric parameter with a preset threshold value, and executes a channel measurement policy or a signal transmission policy according to the comparison result. According to the technical solution of the embodiments of the present application, the base station can calculate the channel change metric parameter representing the channel change metric based on the channel information between the base station and the terminal, and can be realized simply and efficiently. In addition, according to the comparison result between the channel change metric parameter and the preset threshold value, the channel measurement period can be adjusted, and the corresponding signal transmission mode can be selected, and can be realized simply and efficiently.

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

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

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

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

[0080] Note that when 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 in the next period can be adjusted in a timely manner.

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

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

[0083] The base station in the embodiment of the present application generates a downlink channel measurement pilot signal, and then transmits the downlink channel measurement pilot signal to the terminal. When the terminal receives the downlink channel measurement pilot signal, it 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, when the base station receives the downlink channel matrix codebook, it uses the downlink channel matrix codebook as channel information, and then determines a channel change metric parameter based on the downlink channel matrix codebook.

[0084] 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, the following presents an embodiment of the overall channel measurement transmission method of the present application.

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

[0086] First, the base station acquires the channel information between the base station and the terminal in two adjacent channel measurements and constructs a channel information covariance matrix. Next, based on the measured channel information covariance matrix, the base station calculates a channel correlation coefficient, that is, the above-mentioned channel change metric parameter, according to the matrix correlation, thereby representing the channel change metric under the condition of the interval time between two adjacent channel measurements. Next, when the channel correlation coefficient is greater than or equal to a preset threshold, the closed-loop transmission mode is executed. When the channel correlation coefficient is less than the preset threshold and there are measurement resources, the measurement period is shortened and the channel measurement is performed again. When the channel correlation coefficient is less than the preset threshold and there are no measurement resources, the closed-loop transmission mode is abandoned and the open-loop transmission mode is selected.

[0087] The channel measurement transmission method of the embodiments of the present application is implemented on devices and chips such as a digital signal processor (DSP), a field programmable gate array (FPGA), and an application specific integrated circuit (ASIC), but is not limited thereto.

[0088] Based on the above implementation environment, the channel measurement transmission method on the base station side, the channel measurement transmission method on the terminal side, and the overall channel measurement transmission method, a plurality of specific embodiments of the channel measurement transmission method of the present application are proposed as follows. Embodiment 1

[0089] TIFF2025522500000002.tif22170

[0090] TIFF2025522500000003.tif46170

[0091] TIFF2025522500000004.tif50170

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

[0093] TIFF2025522500000005.tif23170

[0094] TIFF2025522500000006.tif47170

[0095] TIFF2025522500000007.tif52170

[0096] Step 3: Compare the channel correlation coefficient with the set threshold value. Since 0.7 < 0.9, the channel correlation is low and the channel change is fast. Also, if it is determined that there is measurement resource, shorten the measurement period to 40 ms, perform channel measurement again, and then perform Step 1 again. Example 3

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[0098] TIFF2025522500000009.tif50170

[0099] TIFF2025522500000010.tif52170

[0100] Step 3: Compare the channel correlation coefficient with the set threshold value. Since 0.6 < 0.9, the channel correlation is low and the channel change is fast. Also, if it is determined that there is no measurement resource, abandon the closed-loop codebook transmission mode and select the open-loop transmission mode.

[0101] Based on the above implementation environment, the channel measurement and transmission method on the base station side, and the channel measurement and transmission method on the terminal side, each embodiment of the base station, terminal, computer-readable storage medium, and computer program product of the present application is proposed as follows.

[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. An embodiment of the present application includes 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. When the first processor 110 executes the computer program, the base station 100 that executes any one of the channel measurement and transmission methods on the base station side is further disclosed.

[0103] The first memory 120 can be used to store non - temporary computer - readable software programs and non - temporary computer - executable programs as a non - temporary computer - readable storage medium. Further, the first memory 120 may include a high - speed random access memory and may also include non - temporary memory such as at least one magnetic disk memory device, a flash memory device, or other non - temporary solid - state memory devices. In some embodiments, the first memory 120 may include a memory remotely located with respect to the first processor 110 that can be connected to this implementation environment via a network. Examples of the above - mentioned network 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 FIG. 1. Since both belong to the same application concept, they have the same implementation principle and beneficial effects, so they will not be described in detail here.

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

[0106] Since the base station 100 of the embodiment of the present application can execute the channel measurement and transmission method on the base station side of the above - mentioned embodiment, the specific implementation forms and technical effects of the base station 100 of the embodiment of the present application may refer to the specific implementation forms and technical effects of the channel measurement and transmission method on the base station side of the above - mentioned embodiment.

[0107] Also, as shown in FIG. 15, FIG. 15 is a schematic configuration diagram of a terminal according to an embodiment of the present application. An embodiment of the present application includes 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. When the second processor 210 executes the computer program, the terminal 200 that executes the channel measurement transmission method on the terminal side is further disclosed.

[0108] The second memory 220 can be used as a non-transitory computer-readable storage medium to store non-transitory software programs and non-transitory computer-executable programs. Further, the second memory 220 may include a high-speed random access memory and may also include non-transitory memory such as at least one magnetic disk memory device, a flash memory device, or other non-transitory solid-state memory devices. In some embodiments, the second memory 220 may include a memory remotely located with respect to the second processor 210, and these remote memories may be connected to the implementation environment via a network. Examples of the above network 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 FIG. 1. Since both belong to the same application concept, they have the same implementation principle and beneficial effects, so they will not be described in detail here.

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

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

[0112] In addition, an embodiment of the present application further discloses a computer-readable storage medium storing computer-executable instructions for executing a channel measurement transmission method as in any of the above embodiments.

[0113] Since the computer-readable storage medium according to an embodiment of the present application can execute the channel measurement transmission method on the base station side or the terminal side in the above embodiment, the specific embodiments and technical effects of the computer-readable storage medium according to an 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 or the terminal side above.

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

[0115] Since the computer program product according to an embodiment of the present application can execute the channel measurement transmission method on the base station side or the terminal side in the above embodiment, the specific embodiments and technical effects of the computer program product according to an 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 or the terminal side above.

[0116] All or part of the steps in the method disclosed above, the system may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor such as a central processor, a digital signal processor, a microprocessor, etc., 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 that may include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those skilled in the art, the term computer storage medium 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 technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage devices, magnetic cartridges, magnetic tape, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Further, it is well known to those skilled in the art that 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 distribution medium.

Claims

1. A channel measurement and transmission method applied to a base station, comprising: obtaining channel information between the base station and a terminal, and determining a channel change metric parameter based on the channel information; comparing the channel change metric parameter with a preset threshold, and executing a channel measurement policy or a signal transmission policy according to a comparison result. A channel measurement and transmission method.

2. The step of obtaining channel information between the base station and the terminal and determining a channel change metric parameter based on the channel information comprises: obtaining channel information between the base station and the terminal in two adjacent channel measurements, and determining a channel change metric parameter during an interval time between the two adjacent channel measurements based on the channel information. The channel measurement and transmission method according to Claim 1.

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

4. The step of determining a channel change metric parameter based on the channel information comprises: generating a channel information covariance matrix based on the channel information; and calculating a channel change metric parameter based on the channel information covariance matrix. The channel measurement and transmission method according to Claim 1.

5. When executing a channel measurement policy according to a comparison result, the step of executing a channel measurement policy according to a comparison result comprises: obtaining a resource state of a currently measured resource, and shortening a channel measurement period when the resource state is an idle state and the channel change metric parameter is less than a preset threshold. The channel measurement and transmission method according to any one of Claims 1 to 4.

6. When executing a signal transmission policy according to a comparison result, the step of executing the signal transmission policy according to the comparison result is when the channel change metric parameter is greater than or equal to a preset threshold, performing signal transmission by adopting a closed-loop transmission mode obtaining the resource state of the currently measured resource, and when the resource state is a non-idle state and the channel change metric parameter is less than the preset threshold, performing signal transmission by adopting an open-loop transmission mode, including at least one of the steps The channel measurement and transmission method according to any one of claims 1 to 4.

7. A channel measurement and transmission method applied to a terminal, comprising obtaining a pilot signal or a downlink channel matrix codebook 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 transmits the pilot signal or the downlink channel matrix codebook to the base station so as to execute a channel measurement policy or a signal transmission policy based on a preset threshold and a channel change metric parameter determined by the channel information Channel measurement and transmission method.

8. When obtaining a pilot signal, the step of obtaining the pilot signal includes obtaining pilot signals in two adjacent channel measurements, or When obtaining a downlink channel matrix codebook, the step of obtaining the downlink channel matrix codebook includes obtaining downlink channel matrix codebooks in two adjacent channel measurements The channel measurement and transmission method according to claim 7.

9. The step of obtaining the downlink channel matrix codebook includes obtaining a downlink channel measurement pilot signal of the base station, and generating a downlink channel matrix codebook based on the downlink channel measurement pilot signal The channel measurement and transmission method according to claim 7.

10. A base station including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the processor executes the computer program, the channel measurement and transmission method according to any one of claims 1 to 6 is executed.

11. A terminal comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the processor executes the computer program, the channel measurement transmission method according to any one of claims 7 to 9 is executed.

12. A computer-readable storage medium storing computer-executable instructions for executing the channel measurement transmission method according to any one of claims 1 to 6 or the channel measurement transmission method according to any one of claims 7 to 9.

13. 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 when the processor executes the computer program or the computer instructions, the channel measurement transmission method according to any one of claims 1 to 6 or the channel measurement transmission method according to any one of claims 7 to 9 is caused to be executed on the computer device.

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