An adaptive antenna switching method and system for NR network

Abstract

The present invention provides an adaptive antenna switching method and system for an NR network, comprising: step A1, judging whether the reported MIMO layer number is not greater than the current number of enabled receiving antennas: if not, step A2, enabling the maximum number of antennas; if yes, step A3: if performance transmission is prioritized, step A2; power consumption is prioritized, step A4, calculating the average bit error rate, step A5, judging whether the average bit error rate is lower than a first threshold value: if yes, step A6, reducing the number of enabled antennas; if no, step A7, judging whether the average bit error rate is lower than a second threshold value: if no, step A8, increasing the number of enabled antennas, if yes, step A9, calculating the average RNS; step A10, judging whether the average RNS is higher than a third threshold value: if no, step A8, if yes, step A11, maintaining the number of enabled antennas. The present invention adaptively adjusts the number of receiving antennas according to the current actual performance of the UE and the data application scenario, thereby achieving a balance between power consumption and performance.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular to an adaptive antenna switching method and system for a NR network. Background Art

[0002] In the 5G wireless communication system, the UE can report the maximum number of PDSCH MIMO layers that the user equipment UE can support in certain application scenarios, so the PDSCH scheduled by the base station will not exceed the actual number of layers reported by the UE, thereby saving power consumption. At this time, the actual number of receiving antennas of the UE may be greater than the number of MIMO layers scheduled by the network. For example, a UE with 4 physical antennas turned on receives a PDSCH scheduled by 2 layers. In a non-weak field environment, the UE will process additional redundant 2 antenna data, resulting in a large waste of power consumption. Or in areas with poor signals, the network schedules 1 layer of data, but the UE also turns on 1 antenna to receive signals, resulting in a high bit error rate and no multi-antenna receiving gain. In order to save power consumption, the UE turns off the redundant receiving antennas, which may cause the UE to lose some performance in the actual application environment. In order to facilitate implementation and performance considerations, some UEs still use all antennas to receive and process PDSCH signals, which loses the original intention of the UE to save power consumption. Summary of the invention

[0003] The present invention provides an adaptive antenna switching method and system for an NR network, aiming to adaptively adjust the number of receiving antennas according to application scenarios to achieve a balance between power consumption and performance.

[0004] An adaptive antenna switching method for an NR network, comprising:

[0005] Step A1: Determine whether the maximum number of layers supported by the reported NR network is not greater than the number of currently enabled receiving antennas:

[0006] If not, proceed to step A2;

[0007] If yes, proceed to step A3;

[0008] Step A2, making the number of enabled receiving antennas equal to the preset maximum number of antennas, and then exiting;

[0009] Step A3, determining whether the current priority transmission mode is power consumption priority or performance priority:

[0010] If performance is the priority, go to step A2;

[0011] If power consumption is prioritized, go to step A4;

[0012] Step A4, calculating the average bit error rate of the physical downlink shared channel signal within the statistical window;

[0013] Step A5, determining whether the average bit error rate is lower than a first threshold:

[0014] If yes, go to step A6;

[0015] If not, go to step A7;

[0016] Step A6, reducing the number of currently enabled receiving antennas, and then returning to step A1;

[0017] Step A7, determining whether the average bit error rate is lower than a second threshold value:

[0018] If not, proceed to step A8;

[0019] If yes, go to step A9;

[0020] Step A8, increasing the number of currently enabled receiving antennas, and then returning to step A1;

[0021] Step A9, calculating the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal;

[0022] Step A10, determining whether the average signal-to-noise ratio is higher than a third threshold:

[0023] If yes, go to step A11;

[0024] If not, go to step A8;

[0025] Step A11, keep the number of currently enabled receiving antennas unchanged, and then return to step A1.

[0026] Furthermore, before step A1, step A0 is also included: when the adaptive antenna switching function is enabled, the number of currently enabled receiving antennas is initialized to the maximum number of antennas.

[0027] Further, step A6 includes:

[0028] Step A61, determine whether the number of currently enabled receiving antennas is equal to the maximum number of layers reported:

[0029] If not, execute step A62;

[0030] If yes, execute step A63;

[0031] Step A62, reduce the number of currently enabled receiving antennas, and then execute step A64;

[0032] Step A63, keep the number of currently enabled receiving antennas, and then execute step A64;

[0033] Step A64, determine whether the next statistical window period has arrived:

[0034] If yes, return to step A1.

[0035] Furthermore, in step A62, one of the currently turned-on receiving antennas is selected to be turned off.

[0036] Further, step A9 includes:

[0037] Step A91, obtaining an average value of the signal-to-noise ratio of the physical downlink shared channel signal in the first statistical window as a first mean value, and an average value of the signal-to-noise ratio of the time reference signal in the first statistical window as a second mean value, and obtaining an average value of the signal-to-noise ratio of the physical downlink shared channel signal in a second statistical window adjacent to the first statistical window as a third mean value, and an average value of the signal-to-noise ratio of the time reference signal in the second statistical window as a fourth mean value;

[0038] Step A92, performing alpha filtering on the first mean and the third mean to obtain a fifth mean, and performing alpha filtering on the second mean and the fourth mean to obtain a sixth mean;

[0039] Step A93, calculating the average of the fifth mean and the sixth mean as the average signal-to-noise ratio.

[0040] Further, step A8 includes:

[0041] Step A81, determine whether the number of currently enabled receiving antennas is equal to the maximum number of antennas:

[0042] If yes, execute step A82;

[0043] If not, execute step A83;

[0044] Step A82, keep the number of currently enabled receiving antennas, and then execute step A84;

[0045] Step A83, increase the number of currently enabled receiving antennas, then execute step A84;

[0046] Step A84, determine whether the next statistical window period has arrived:

[0047] If yes, return to step A1.

[0048] Further, step A83 includes:

[0049] Step A831, obtaining unactivated receiving antennas and calculating the signal-to-noise ratio of each unactivated receiving antenna;

[0050] Step A832, selecting a preset number of receiving antennas having a larger signal-to-noise ratio from the receiving antennas that have not been turned on;

[0051] Step A833, turn on the selected receiving antenna.

[0052] Further, in step A83, one of the receiving antennas that have not been turned on is selected to be turned on.

[0053] Furthermore, step A11 includes:

[0054] Step A111, keeping the number of currently enabled receiving antennas unchanged;

[0055] Step A112, determine whether the next statistical window period has arrived:

[0056] If yes, return to step A1.

[0057] An adaptive antenna switching system for an NR network, including the aforementioned adaptive antenna switching method for an NR network, including:

[0058] The acquisition module is used to obtain the maximum number of layers supported by the reported NR network and the number of currently enabled receiving antennas;

[0059] A first judgment module, connected to the acquisition module, is used to judge whether the reported maximum number of layers is not greater than the number of currently enabled receiving antennas, and output a first judgment result;

[0060] A second judgment module, connected to the first judgment module, is used to judge whether the current priority transmission mode is power consumption priority or performance priority when the first judgment result is that the maximum number of layers reported is not greater than the number of currently enabled receiving antennas, and output a second judgment result;

[0061] A first calculation module, connected to the second judgment module, is used to calculate an average bit error rate of a physical downlink shared channel signal in a statistical window when the second judgment result is that the current priority transmission mode is power consumption priority;

[0062] A third judgment module, connected to the first calculation module, is used to judge whether the average bit error rate is lower than the first threshold value, and output a third judgment result;

[0063] a fourth judgment module, connected to the third judgment module, for judging whether the average bit error rate is lower than the second threshold value when the third judgment result is that the average bit error rate is not lower than the first threshold value, and outputting a fourth judgment result;

[0064] A second calculation module, connected to the fourth judgment module, is used to calculate the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal when the fourth judgment result is that the average bit error rate is lower than the second threshold value;

[0065] a fifth judgment module, connected to the second calculation module, configured to judge whether the average signal-to-noise ratio is higher than a third threshold value, and output a fifth judgment result;

[0066] The setting module is respectively connected to the first judgment module, the second judgment module, the third judgment module (6), the fourth judgment module and the fifth judgment module, and is used for:

[0067] When the first judgment result is that the reported maximum number of layers is greater than the number of currently enabled receiving antennas, the number of enabled receiving antennas is set to a preset maximum number of antennas;

[0068] When the second judgment result is that the current priority transmission mode is performance priority, the number of enabled receiving antennas is set to a preset maximum number of antennas;

[0069] When the third judgment result is that the average bit error rate is lower than the first threshold value, reducing the number of currently enabled receiving antennas;

[0070] When the fourth judgment result is that the average bit error rate is not lower than the second threshold value, increase the number of currently enabled receiving antennas;

[0071] When the fifth judgment result is that the average signal-to-noise ratio is higher than the third threshold value, the number of currently enabled receiving antennas is kept unchanged;

[0072] When the fifth judgment result is that the average signal-to-noise ratio is not higher than the third threshold value, the number of currently enabled receiving antennas is increased.

[0073] The beneficial technical effect of the present invention is that the present invention adaptively adjusts the number of receiving antennas according to the current actual performance of the UE and the data application scenario, thereby achieving a balance between power consumption and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1-6 A flowchart of a method for adaptive antenna switching in an NR network according to the present invention;

[0075] Figure 7 A module schematic diagram of an adaptive antenna switching system for an NR network of the present invention. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0078] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0079] See also Figure 1 The present invention provides an adaptive antenna switching method for an NR network, comprising:

[0080] Step A1: Determine whether the maximum number of layers supported by the reported NR network is not greater than the number of currently enabled receiving antennas:

[0081] If not, proceed to step A2;

[0082] If yes, proceed to step A3;

[0083] Step A2, making the number of enabled receiving antennas equal to the preset maximum number of antennas, and then exiting;

[0084] Step A3, determining whether the current priority transmission mode is power consumption priority or performance priority:

[0085] If performance is the priority, return to step A2;

[0086] If power consumption is prioritized, execute step A4;

[0087] Step A4, calculating the average bit error rate of the physical downlink shared channel signal within the statistical window;

[0088] Step A5, determining whether the average bit error rate is lower than a first threshold:

[0089] If yes, proceed to step A6;

[0090] If not, proceed to step A7;

[0091] Step A6, reducing the number of currently enabled receiving antennas, and then returning to step A1;

[0092] Step A7, determining whether the average bit error rate is lower than a second threshold value:

[0093] If not, proceed to step A8;

[0094] If yes, go to step A9;

[0095] Step A8, increasing the number of currently enabled receiving antennas, and then returning to step A1;

[0096] Step A9, calculating the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal;

[0097] Step A10, determining whether the average signal-to-noise ratio is higher than a third threshold:

[0098] If yes, execute step A11;

[0099] If not, return to step A8;

[0100] Step A11, keep the number of currently enabled receiving antennas unchanged, and then return to step A1.

[0101] The current 5G user equipment UE generally has 1 / 2 / 4 receiving antennas, and the 8-antenna scenario needs to support 2 codewords. The maximum MAX MIMO LAYER is 1 / 2 / 4 layers, and the number of layers must be less than or equal to the actual number of physical antennas of the UE.

[0102] Furthermore, before step A1, step A0 is also included: when the adaptive antenna switching function is enabled, the number of currently enabled receiving antennas is initialized to the maximum number of antennas.

[0103] In step A0, if it is detected that the maximum number of reported layers has changed, the adaptive antenna switching function is resumed, the number of currently enabled receiving antennas is initialized to the maximum number of antennas, and then A1 is continued.

[0104] The user equipment initializes the number of currently enabled receiving antennas to the maximum number of antennas supported by the hardware, in order to ensure performance in the initial stage and avoid unnecessary data loss or delay.

[0105] The user equipment reports the maximum number of PDSCH MIMO layers required to be supported to the network according to the current application scenario. The classification of application scenarios can be defined by the UE equipment manufacturer. For example, IoT devices do not require large data flows and have no requirements for rates, but have extremely high requirements for power consumption. In this case, the maximum number of MIMO layers supported can be reported as 1. Or monitoring equipment has no mobility requirements, but has certain requirements for rates, but they are relatively constant and do not have sudden high rates. In this case, the maximum number of MIMO layers supported can be reported as 2. The present invention does not involve the definition of scenarios. This is just an example and will not be described in detail.

[0106] In step A1, if the reported maximum number of MIMO layers is greater than the current number of actual receiving antennas turned on, otherwise the maximum number of antennas is still maintained to maintain performance requirements. In step A3, according to the application layer's indication of the current power consumption priority or performance priority transmission mode, if it is performance priority, all receiving antennas are turned on to ensure performance.

[0107] In step A4, the statistical window is set to 1024 time slots.

[0108] The statistical window is a sliding window.

[0109] In step A5, if the average bit error rate of PDSCH is very low, lower than the first threshold value, the number of receiving antennas can be reduced to further reduce power consumption. Preferably, one open receiving antenna is reduced each time, and then the next statistical window period is entered, and step A1 is returned. After the reduction, the number of open receiving antennas actually equals the maximum number of MIMO layers reported by the UE, and then it will no longer be reduced.

[0110] In step A10, if the average signal-to-noise ratio is higher than the third threshold value, it is considered that the current performance does not need to be adjusted, and the number of currently enabled receiving antennas remains unchanged; otherwise, the number of enabled receiving antennas needs to be increased to ensure performance until the number of enabled receiving antennas reaches the maximum number of antennas.

[0111] When the next statistical window period arrives, the number of open receiving antennas is dynamically and adaptively adjusted again to achieve the best balance between performance and power consumption.

[0112] Compared with the solution of fixed receiving antennas in the prior art, which leads to loss of UE receiving data performance or waste of power consumption, the present invention dynamically adjusts the number of receiving antennas in combination with the current wireless environment and actual application scenarios of the user equipment to achieve the best balance between power consumption and performance. In the actual process, for example, some receiving antennas greater than the number of layers are turned off to save power consumption, or antennas with stronger capabilities than reported are turned on for reception to enhance the receiving gain, thereby achieving the purpose of enhancing performance.

[0113] See also Figure 2 , further, step A6 comprises:

[0114] Step A61, determine whether the number of currently enabled receiving antennas is equal to the maximum number of layers reported:

[0115] If not, execute step A62;

[0116] If yes, execute step A63;

[0117] Step A62, reduce the number of currently enabled receiving antennas, and then execute step A64;

[0118] Step A63, keep the number of currently enabled receiving antennas, and then execute step A64;

[0119] Step A64, determine whether the next statistical window period has arrived:

[0120] If yes, return to step A1.

[0121] Furthermore, in step A62, one of the currently turned-on receiving antennas is selected to be turned off.

[0122] See also Figure 3 , further, step A9 includes:

[0123] Step A91, obtaining an average value of the signal-to-noise ratio of the physical downlink shared channel signal PDSCH in the first statistical window as a first mean value, and an average value of the signal-to-noise ratio of the time reference signal TRS in the first statistical window as a second mean value, and obtaining an average value of the signal-to-noise ratio of the physical downlink shared channel PDSCH signal in a second statistical window adjacent to the first statistical window as a third mean value, and an average value of the signal-to-noise ratio of the time reference signal TRS in the second statistical window as a fourth mean value;

[0124] Step A92, performing alpha filtering on the first mean and the third mean to obtain a fifth mean, and performing alpha filtering on the second mean and the fourth mean to obtain a sixth mean;

[0125] Step A93: Calculate the average of the fifth mean value and the sixth mean value as the average signal-to-noise ratio SNR.

[0126] The first statistical window is the current statistical window, and the second statistical window is the previous statistical window.

[0127] In step A92, the first mean of the first preset percentage and the third mean of the second preset percentage are taken for alpha filtering to obtain a fifth mean. Preferably, the first preset percentage is 80% and the second preset percentage is 20%. The second mean of the third preset percentage and the fourth mean of the fourth preset percentage are taken for alpha filtering to obtain a sixth mean. Preferably, the third preset percentage is 80% and the fourth preset percentage is 20%.

[0128] See also Figure 4 , further, step A8 comprises:

[0129] Step A81, determine whether the number of currently enabled receiving antennas is equal to the maximum number of antennas:

[0130] If yes, execute step A82;

[0131] If not, execute step A83;

[0132] Step A82, keep the number of currently enabled receiving antennas, and then execute step A84;

[0133] Step A83, increase the number of currently enabled receiving antennas, then execute step A84;

[0134] Step A84, determine whether the next statistical window period has arrived:

[0135] If yes, return to step A1.

[0136] See also Figure 5 , further, step A83 includes:

[0137] Step A831, obtaining unactivated receiving antennas and calculating the signal-to-noise ratio of each unactivated receiving antenna;

[0138] Step A832, selecting a preset number of receiving antennas having a larger signal-to-noise ratio from the receiving antennas that have not been turned on;

[0139] Step A833, turn on the selected receiving antenna.

[0140] When choosing which antennas to turn on, the antennas with high SNR are selectively turned on based on the signal-to-noise ratio measurement value of each antenna, ensuring performance in power consumption priority mode.

[0141] Further, in step A83, one of the receiving antennas that have not been turned on is selected to be turned on.

[0142] See also Figure 6 , further, step A11 includes:

[0143] Step A111, keeping the number of currently enabled receiving antennas unchanged;

[0144] Step A112, determine whether the next statistical window period has arrived:

[0145] If yes, return to step A1.

[0146] See also Figure 7 The present invention also provides an adaptive antenna switching system for an NR network, including the aforementioned adaptive antenna switching method for an NR network, including:

[0147] An acquisition module (1) is used to obtain the maximum number of layers that the reported NR network can support and the number of currently enabled receiving antennas;

[0148] A first judgment module (2), connected to the acquisition module (1), is used to judge whether the reported maximum number of layers is not greater than the number of currently enabled receiving antennas, and output a first judgment result;

[0149] A second judgment module (3) is connected to the first judgment module (2) and is used to judge whether the current priority transmission mode is power consumption priority or performance priority when the first judgment result is that the maximum number of layers reported is not greater than the number of currently enabled receiving antennas, and output a second judgment result;

[0150] A first calculation module (5), connected to the second judgment module (3), is used to calculate an average bit error rate of a physical downlink shared channel signal within a statistical window when the second judgment result is that the current priority transmission mode is power consumption priority;

[0151] A third judgment module (6), connected to the first calculation module (5), is used to judge whether the average bit error rate is lower than the first threshold value, and output a third judgment result;

[0152] A fourth judgment module (7), connected to the third judgment module (6), is used to judge whether the average bit error rate is lower than the second threshold value when the third judgment result is that the average bit error rate is not lower than the first threshold value, and output a fourth judgment result;

[0153] A second calculation module (8), connected to the fourth judgment module (7), is used to calculate the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal when the fourth judgment result is that the average bit error rate is lower than the second threshold value;

[0154] A fifth judgment module (9), connected to the second calculation module (8), configured to judge whether the average signal-to-noise ratio is higher than a third threshold value, and output a fifth judgment result;

[0155] The setting module (4) is respectively connected to the first judgment module (2), the second judgment module (3), the third judgment module (6), the fourth judgment module (7) and the fifth judgment module (9), and is used to:

[0156] When the first judgment result is that the reported maximum number of layers is greater than the number of currently enabled receiving antennas, the number of enabled receiving antennas is set to a preset maximum number of antennas;

[0157] When the second judgment result is that the current priority transmission mode is performance priority, the number of enabled receiving antennas is set to a preset maximum number of antennas;

[0158] When the third judgment result is that the average bit error rate is lower than the first threshold value, reducing the number of currently enabled receiving antennas;

[0159] When the fourth judgment result is that the average bit error rate is not lower than the second threshold value, increase the number of currently enabled receiving antennas;

[0160] When the fifth judgment result is that the average signal-to-noise ratio is higher than the third threshold value, the number of currently enabled receiving antennas is kept unchanged;

[0161] When the fifth judgment result is that the average signal-to-noise ratio is not higher than the third threshold value, the number of currently enabled receiving antennas is increased.

[0162] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive antenna switching method for NR network, It is characterized in that include: Step A1: Determine whether the maximum number of layers supported by the reported NR network is not greater than the number of currently enabled receiving antennas: If not, proceed to step A2; If yes, proceed to step A3; Step A2, making the number of the receiving antennas turned on equal to the preset maximum number of antennas, and then exiting; Step A3, determining whether the current priority transmission mode is power consumption priority or performance priority: If performance is the priority, return to step A2; If power consumption is prioritized, execute step A4; Step A4, calculating the average bit error rate of the physical downlink shared channel signal within the statistical window; Step A5, determining whether the average bit error rate is lower than a first threshold: If yes, proceed to step A6; If not, proceed to step A7; Step A6, reducing the number of currently enabled receiving antennas, and then returning to step A1; Step A7, determining whether the average bit error rate is lower than a second threshold: If not, proceed to step A8; If yes, go to step A9; Step A8, increasing the number of currently enabled receiving antennas, and then returning to step A1; Step A9, calculating the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal; Step A10, determining whether the average signal-to-noise ratio is higher than a third threshold: If yes, execute step A11; If not, return to step A8; Step A11, keep the number of currently enabled receiving antennas unchanged, and then return to step A1.

2. The adaptive antenna switching method of an NR network according to claim 1, It is characterized in that Before step A1, the method further includes step A0: when the adaptive antenna switching function is enabled, the number of enabled receiving antennas currently is initialized to the maximum number of antennas.

3. The adaptive antenna switching method of an NR network according to claim 1, It is characterized in that The step A6 comprises: Step A61, determining whether the number of currently enabled receiving antennas is equal to the reported maximum number of layers: If not, execute step A62; If yes, execute step A63; Step A62, reducing the number of currently enabled receiving antennas, and then executing step A64; Step A63, keep the number of the currently enabled receiving antennas, and then execute step A64; Step A64, determine whether the next statistical window period has arrived: If yes, return to step A1.

4. The adaptive antenna switching method of an NR network according to claim 3, It is characterized in that In the step A62, one of the currently turned-on receiving antennas is selected to be turned off.

5. The adaptive antenna switching method of an NR network according to claim 1, It is characterized in that The step A9 comprises: Step A91, acquiring an average value of the signal-to-noise ratio of the physical downlink shared channel signal in a first statistical window as a first mean value, and an average value of the signal-to-noise ratio of the time reference signal in the first statistical window as a second mean value, and acquiring an average value of the signal-to-noise ratio of the physical downlink shared channel signal in a second statistical window adjacent to the first statistical window as a third mean value, and an average value of the signal-to-noise ratio of the time reference signal in the second statistical window as a fourth mean value; Step A92, performing alpha filtering on the first mean and the third mean to obtain a fifth mean, and performing alpha filtering on the second mean and the fourth mean to obtain a sixth mean; Step A93: Calculate the average of the fifth mean and the sixth mean as the average signal-to-noise ratio.

6. The adaptive antenna switching method of an NR network according to claim 1, It is characterized in that The step A8 comprises: Step A81, determining whether the number of currently enabled receiving antennas is equal to the maximum number of antennas: If yes, execute step A82; If not, execute step A83; In step A82, the number of the currently enabled receiving antennas is maintained, and then step A84 is executed; In step A83, the number of currently enabled receiving antennas is increased, and then step A84 is executed; The step A84 is to determine whether the next statistical window period has arrived: If yes, return to step A1.

7. The adaptive antenna switching method of an NR network according to claim 6, It is characterized in that The step A83 comprises: Step A831, obtaining the receiving antennas that are not turned on and calculating the signal-to-noise ratio of each of the receiving antennas that are not turned on; Step A832, selecting a preset number of receiving antennas having a larger signal-to-noise ratio from the receiving antennas that have not been turned on; Step A833, turn on the selected receiving antenna.

8. The adaptive antenna switching method of an NR network according to claim 6, It is characterized in that In the step A83, one of the receiving antennas that have not been turned on is selected to be turned on.

9. The adaptive antenna switching method of an NR network according to claim 1, It is characterized in that The step A11 comprises: Step A111, keeping the number of currently enabled receiving antennas unchanged; Step A112, determine whether the next statistical window period has arrived: If yes, return to step A1.

10. An adaptive antenna switching system for NR network, It is characterized in that An adaptive antenna switching method for an NR network according to any one of claims 1 to 9, comprising: An acquisition module, used to obtain the maximum number of layers that the reported NR network can support and the number of currently enabled receiving antennas; A first judgment module, connected to the acquisition module, is used to judge whether the reported maximum number of layers is not greater than the number of currently enabled receiving antennas, and output a first judgment result; a second judgment module, connected to the first judgment module, configured to judge whether the current priority transmission mode is power consumption priority or performance priority when the first judgment result is that the maximum number of reported layers is not greater than the number of currently enabled receiving antennas, and output a second judgment result; A first calculation module, connected to the second judgment module, is used to calculate an average bit error rate of a physical downlink shared channel signal in a statistical window when the second judgment result is that the current priority transmission mode is power consumption priority; a third judgment module, connected to the first calculation module, configured to judge whether the average bit error rate is lower than a first threshold value, and output a third judgment result; a fourth judgment module, connected to the third judgment module, and configured to judge whether the average bit error rate is lower than a second threshold value when the third judgment result is that the average bit error rate is not lower than the first threshold value, and output a fourth judgment result; A second calculation module, connected to the fourth judgment module, is used to calculate the average signal-to-noise ratio of the physical downlink shared channel signal and the time reference signal when the fourth judgment result is that the average bit error rate is lower than the second threshold value; a fifth judgment module, connected to the second calculation module, configured to judge whether the average signal-to-noise ratio is higher than a third threshold value, and output a fifth judgment result; A setting module is connected to the first judgment module, the second judgment module, the third judgment module, the fourth judgment module and the fifth judgment module respectively, and is used for: When the first judgment result is that the reported maximum number of layers is greater than the current number of enabled receiving antennas, the number of enabled receiving antennas is set to a preset maximum number of antennas; When the second judgment result is that the current priority transmission mode is performance priority, the number of the enabled receiving antennas is set to a preset maximum number of antennas; When the third judgment result is that the average bit error rate is lower than the first threshold value, reducing the number of currently enabled receiving antennas; When the fourth judgment result is that the average bit error rate is not lower than the second threshold value, increasing the number of currently enabled receiving antennas; When the fifth judgment result is that the average signal-to-noise ratio is higher than the third threshold value, keeping the number of currently enabled receiving antennas unchanged; When the fifth judgment result is that the average signal-to-noise ratio is not higher than the third threshold value, the number of the currently enabled receiving antennas is increased.

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