A network coverage self-optimization method for master-slave type 5G wireless frequency-shift repeater

Abstract

The application discloses a network coverage self-optimization method of a master-slave form 5G wireless frequency shift repeater, and the master and the slave are connected through a mobile phone, the mobile phone is used to acquire the received signal RSRP value, the SINR value and the primary cell PCI and the number of adjacent cells of the current 5G signal frequency band; the current gain value and the system design value of the downlink of the master are acquired; the current gain value and the system design value of the downlink of the slave are acquired; the slave output signal power value is acquired; the parameter configuration of the wireless frequency shift repeater device can be automatically optimized according to the above parameters, and the network coverage effect is improved. The problem that general consumers cannot adjust the parameters of the device itself to optimize the network capability is solved, the device becomes more convenient to use, the product can be mass marketed to the consumer market, and thus higher benefits can be brought to manufacturers.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of 5G repeaters, and particularly relates to a network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater. BACKGROUND

[0002] With the development of mobile communication technology, especially in the 4G / 5G era, the wireless frequency gradually becomes higher, and the coverage range of the base station gradually becomes smaller, resulting in a large number of coverage blind spots. At the same time, there are a large number of low-value areas that need to be covered by wireless, thereby leading to a large number of repeater devices, and various types of devices are pushed to the market. In order to reduce the engineering opening workload in the application of the device, the wireless repeater technology based on the frequency shift mode is gradually mature, and begins to move towards the market.

[0003] At present, the wireless frequency-shift repeater device, since the user faces general consumers, after the device is opened, only the position of the coverage device can be adjusted by human beings to achieve the purpose of optimizing the coverage. The general consumers do not have the ability to adjust the parameters of the device itself to optimize the network, and often make the device unable to achieve the optimal coverage. SUMMARY

[0004] The purpose of the application is to overcome the above-mentioned deficiencies, and provide a network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater. The method establishes a connection between a mobile phone and a repeater, interacts with the mobile phone, automatically optimizes the parameter configuration of the wireless frequency-shift repeater device, and thereby improves the network coverage effect.

[0005] In order to achieve the above-mentioned purpose, the application comprises the following steps:

[0006] S1, a master and a slave establish a communication link, the slave establishes a communication with a mobile phone, and the mobile phone works in a 5G signal frequency band of a current master relay;

[0007] S2, a received signal RSRP value, a SINR value of a 5G signal frequency band currently used by the mobile phone, and a primary cell PCI and a number of neighboring cells of the current 5G signal are obtained;

[0008] A gain current value Gzc and a system design value Gze of a downlink of the master are obtained;

[0009] A gain current value Gcc and a system design value Gce of a downlink of the slave are obtained;

[0010] An output signal power value Po of the slave is obtained;

[0011] S3, the output signal power value Po of the slave is compared with a preset threshold value Po max If the output signal power value Po of the slave is greater than the preset threshold value Po max , S4 is executed; otherwise, S10 is executed;

[0012] S4, comparing the current value Gcc of the slave's downlink gain with the system design value Gce, if the current value Gcc of the slave's downlink gain is equal to the system design value Gce, then S5 is executed, otherwise S8 is executed;

[0013] S5, comparing the current value Gzc of the master's downlink gain with the system design value Gze, if the current value Gzc of the master's downlink gain is equal to the system design value Gze, then S15 is executed, otherwise S6 is executed;

[0014] S6, if the current value Gzc of the master's downlink gain is less than the system design value Gze, then the difference between the current value Gzc of the master's downlink gain and the system design value Gze is determined, if the difference is less than a preset threshold value Gzdet, then S15 is executed, otherwise S7 is executed;

[0015] S7, a difference value allocation process is entered, the master and the slave are configured respectively, and after the configuration is completed, S15 is executed;

[0016] S8, if the current value Gcc of the slave's downlink gain is less than the system design value Gce, and the current value Gzc of the master's downlink gain is equal to the system design value Gze, then S9 is executed, otherwise S7 is executed;

[0017] S9, comparing the difference between the current value Gcc of the slave's downlink gain and the system design value Gce, if the difference is less than a preset threshold value Gcdet, then S15 is executed, otherwise S7 is executed;

[0018] S10, if the output signal power of the slave is less than a preset threshold value Poth, then S11 is executed, otherwise S12 is executed. max

[0019] S11, if the current value Gzc of the master's downlink gain is equal to the system design value Gze, then S15 is executed, otherwise S13 is executed.

[0020] S12, if the current value Gcc of the slave's downlink gain is less than the system design value Gce, then the current value Gzc of the master's downlink gain is compared with the system design value Gze, if the current value Gzc of the master's downlink gain is equal to the system design value Gze, then a slave downlink gain adjustment process is entered, the current value Gcc of the slave's downlink gain is adjusted according to the output power value P0 of the slave, after the adjustment is completed, S15 is executed, otherwise S14 is executed;

[0021] ​S13, if the current downlink gain value Gzc of the host is less than the system design value Gze, enter the host downlink gain adjustment process, adjust the current downlink gain value of the host according to the slave output power Po, after the adjustment is completed, execute S15;

[0022] S14, if the current downlink gain value Gcc of the slave is less than the system design value Gce, and the current downlink gain value Gzc of the host is less than the system design value Gze, according to the slave output power value Po, combined with the received signal RSRP value, SINR value and cell PCI and the number of adjacent cells on the current 5G signal frequency band, enter the master-slave gain adjustment process, obtain a set of optimal values of the master and slave gains, and configure the master and slave respectively, after the configuration is completed, execute S15;

[0023] S15, complete the optimization, and prompt through the mobile phone.

[0024] After the mobile phone and the slave establish a connection, the slave sends the connection information with the mobile phone to the host, and the host establishes a connection with the mobile phone according to the connection information.

[0025] The specific method of S7 is as follows:

[0026] The host and the slave adjust their respective current gain values according to the received difference values, the mobile phone obtains the received signal RSRP value, SINR value and the current 5G signal master cell PCI and the number of adjacent cells on the 5G signal frequency band, and after the mobile phone executes all the difference value allocation schemes, obtains a set of optimal values according to all the parameters, and configures the host and the slave respectively, after the configuration is completed, execute S15.

[0027] The specific method of the difference value allocation process is as follows:

[0028] S71, determine the total gain value G to be allocated;

[0029] S72, divide the total gain value G into two parts, one part is the gain amount Gz allocated to the host, and the other part is the gain amount Gc allocated to the slave;

[0030] S73, the gain amount Gz allocated to the host starts from 0 and steps up until the gain amount Gz allocated to the host is equal to the total gain value G, there are int(G)+1 allocation schemes in total, and int is the integer operation;

[0031] S74, send the gain amount Gz allocated to the host and the gain amount Gc allocated to the slave of each allocation scheme to the host and the slave for gain configuration;

[0032] S75, record the cell signal RSRP value, SINR value and PCI and the number of adjacent cells received by the mobile phone under the current gain configuration;

[0033] S76, traverse all schemes to obtain a set of optimal values of the gain amount allocated to the master and the gain amount allocated to the slave, and send to the master and the slave for configuration.

[0034] The method for traversing all schemes to obtain a set of optimal values of the gain amount allocated to the master and the gain amount allocated to the slave is as follows:

[0035] Define the allocated gain sent to the master as Gz[i], the allocated gain sent to the slave as Gc[i] at this time, and the information received by the mobile phone as Rsrp[i], Sinr[i], Pci[i], and Neb[i];

[0036] After all schemes are traversed, compare the values of Pci[i], and take the PCI with the most occurrences as the available PCI, and remove all parameters corresponding to other PCIs;

[0037] In the remaining data, select the maximum Sinr[i] as the reference, if there are multiple maximum Sinr[i] values, select the maximum Rsrp[i] in these data as the reference, if there are multiple maximum Rsrp[i] values, select the minimum Neb[i] in the remaining data as the reference, and if there are multiple minimum Neb[i] values, take the group with the minimum i value as the reference.

[0038] In S12, the method for adjusting the downlink gain of the slave is as follows:

[0039] Adjust the downlink gain of the slave by a fixed gain each time according to the slave output power Po until the slave output power Po is equal to the set threshold value Po max or the current value of the downlink gain of the slave Gcc is equal to the system design value Gce.

[0040] In S13, the method for adjusting the downlink gain of the master is as follows:

[0041] Adjust the downlink gain of the master by a fixed gain each time according to the slave output power Po until the slave output power Po is equal to the set threshold value Po max or the current value of the downlink gain of the master Gzc is equal to the system design value Gze.

[0042] In S14, the specific method for adjusting the gains of the master and the slave is as follows:

[0043] Calculate the sum Gd of the difference between the current value of the downlink gain of the master and the system design value Gze, and compare the sum Gd with the difference Pd between the slave output power Po and Po max .

[0044] If the Gd value is less than the Pd value, the downlink gain current values of the master and slave are all set to the system design value; otherwise, the preset threshold value Gzdet and the value of Gd-Pd are judged, if the preset threshold value Gzdet is large, the downlink gain current value of the master is set to Gze-(Gd-Pd), and the downlink gain current value of the slave is set to the system design value; if the latter is large, the preset threshold value Gcdet and the value of Gd-Pd-Gzdet are judged, if the preset threshold value Gcdet is large, the downlink gain current value of the master is set to Gze-Gzdet, and the downlink gain current value of the slave is set to Gce-(Gd-Pd-Gzdet); if the preset threshold value Gcdet is small, the difference allocation process is entered, and the total gain value G to be allocated is Gd-Pd-Gzdet-Gcdet.

[0045] The master and the slave are connected through the wireless relay link ISM frequency band and Bluetooth communication.

[0046] The slave and the mobile phone are connected through Bluetooth communication.

[0047] Compared with the prior art, the mobile phone is connected with the master and the slave, the receiving signal RSRP value, the SINR value and the master cell PCI and the number of adjacent cells of the current 5G signal frequency band are obtained through the mobile phone, the gain current value and the system design value of the downlink of the master are obtained, the gain current value and the system design value of the downlink of the slave are obtained, and the slave output signal power value is obtained; the above-mentioned parameters can automatically optimize the parameter configuration of the wireless frequency shift repeater equipment, and improve the network coverage effect. The problem that general consumers do not have the adjustment of the parameters of the equipment itself to optimize the network capability is solved, the equipment becomes more useful, the product can be sold to the consumer market in large quantities, and thus higher benefits can be brought to the manufacturers. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 It is a wireless link diagram of the master and the slave in the application;

[0049] Figure 2 It is a wireless link diagram of the master, the slave and the mobile phone in the application;

[0050] Figure 3 It is a flow chart of the mobile phone connecting the master and the slave in the application;

[0051] Figure 4 It is a schematic diagram of the mobile phone being placed away from the master in the application;

[0052] Figure 5 It is a flow chart of the network coverage self-optimization starting in the application;

[0053] Figure 6 Flow chart for network coverage automatic optimization in the application;

[0054] Figure 7 Flow chart for difference allocation in the application;

[0055] Figure 8 Flow chart for master downlink gain adjustment in the application;

[0056] Figure 9 Flow chart for slave downlink gain adjustment in the application;

[0057] Figure 10 Flow chart for master-slave gain adjustment in the application. DETAILED DESCRIPTION

[0058] The application will be further described below with reference to the drawings.

[0059] Referring to Figure 1 The master and the slave in the application use ISM frequency bands to relay wireless signals, and after the system is opened, the optimization of network coverage can be realized through the cooperation of the user's mobile phone. The application scans the code of the device through WeChat to establish a connection with the device, and then automatically optimizes the parameter configuration of the wireless frequency shift repeater through information interaction with the mobile phone, thereby improving the network coverage effect.

[0060] The master and the slave in the application communicate through Bluetooth, and the master and the slave automatically establish a communication connection after being powered on.

[0061] Referring to Figure 2 and Figure 3 After the master and the slave are installed and powered on, the master and the slave automatically start, complete communication link establishment and wireless signal frequency shift relay. Then the user's mobile phone is used to open the Bluetooth function, and then the WeChat is opened to scan the two-dimensional code on the slave body to establish a Bluetooth connection with the slave. Then according to the program prompt, the mobile phone is placed within a distance range from the slave, and then the start button is clicked to automatically optimize. The system will automatically optimize the network coverage quality. After optimization is completed, the mobile phone will prompt that optimization is completed, and the user can exit the program and normally use the 5G network after the relay.

[0062] Referring to Figure 3 After confirming that the master and the slave are powered on normally, the user's own 5G mobile phone is used to open the Bluetooth function, open WeChat, and then scan the two-dimensional code on the slave. The applet on the mobile phone automatically establishes a Bluetooth connection with the slave. After the slave is connected to the mobile phone program, the connection information is reported to the master, and the master starts to establish a data channel with the mobile phone through the relay of the slave.

[0063] Referring to Figure 4After the mobile phone establishes a connection with the host computer, the mobile phone program prompts the user to place the mobile phone at a distance of 2-3 meters from the slave computer and on the side away from the host computer. After placing the mobile phone, click Start Optimization in the program, then do not move the mobile phone, and wait for the system to automatically complete the network coverage optimization.

[0064] With reference to Figure 5 and Figure 6 , the present application comprises the following steps:

[0065] S1, the host computer and the slave computer establish a communication link, the slave computer and the mobile phone establish a communication, after the mobile phone establishes a connection with the slave computer, the slave computer sends the connection information with the mobile phone to the host computer, and the host computer establishes a connection with the mobile phone according to the connection information. After the host computer receives the start optimization message sent by the mobile phone, the network coverage automatic optimization process is entered. The host computer sends a message to the mobile phone, instructing the mobile phone program to receive the 5G frequency band information of the current system relay, and the mobile phone program sets the mobile phone to work in the 5G signal frequency band of the current host computer relay after receiving the information.

[0066] S2, the mobile phone obtains the received signal RSRP value, SINR value and the primary cell PCI and the number of neighboring cells of the current 5G signal from the baseband chip of the mobile phone;

[0067] The mobile phone sends an instruction to the host computer to obtain the current gain value Gzc and the system design value Gze of the downlink of the host computer;

[0068] The mobile phone sends an instruction to the slave computer to obtain the current gain value Gcc and the system design value Gce of the downlink of the slave computer;

[0069] The mobile phone sends an instruction to the slave computer to obtain the slave computer output signal power value Po;

[0070] S3, the mobile phone compares the slave computer output signal power value Po with the preset threshold value Po max , if the slave computer output signal power value Po is greater than the preset threshold value Po max , then execute S4; otherwise, execute S10;

[0071] S4, compare the current gain value Gcc and the system design value Gce of the downlink of the slave computer, if the current gain value Gcc is equal to the system design value Gce, then execute S5, otherwise execute S8;

[0072] S5, compare the current gain value Gzc and the system design value Gze of the downlink of the host computer, if the current gain value Gzc is equal to the system design value Gze, then execute S15; otherwise, execute S6;

[0073] S6, if the host downlink gain current value Gzc is less than the system design value Gze, determine the difference between the host downlink gain current value Gzc and the system design value Gze, if the difference is less than the preset threshold value Gzdet, execute S15; otherwise, execute S7;

[0074] S7, enter the difference value allocation process, the host and the slave adjust their respective gain current values according to the received difference values, the mobile phone obtains the received signal RSRP value, SINR value and the current 5G signal master cell PCI and the number of neighboring cells on the 5G signal frequency band at this time, and after the mobile phone completes all the difference value allocation schemes, obtains a set of optimal values according to all the parameters after processing, and configures the host and the slave respectively, and executes S15 after the configuration is completed;

[0075] S8, if the slave downlink gain current value Gcc is less than the system design value Gce, and the host downlink gain current value Gzc is equal to the system design value Gze, execute S9; otherwise, execute S7;

[0076] S9, compare the difference between the slave downlink gain current value Gcc and the system design value Gce, if the difference is less than the preset threshold value Gcdet, execute S15; otherwise, execute S7;

[0077] S10, if the slave output signal power is less than the preset threshold value Poc, execute S11; otherwise, execute S12. max , compare the slave downlink gain current value Gcc and the system design value Gce, if the slave downlink gain current value Gcc is equal to the system design value Gce, execute S11; otherwise, execute S12;

[0078] S11, if the host downlink gain current value Gzc is equal to the system design value Gze, execute S15; otherwise, execute S13.

[0079] S12, if the slave downlink gain current value Gcc is less than the system design value Gce, compare the host downlink gain current value Gzc and the system design value Gze, if the host downlink gain current value Gzc is equal to the system design value Gze, enter the slave downlink gain adjustment process, adjust the slave downlink gain current value according to the slave output power value Po, and execute S15 after the adjustment is completed; otherwise, execute S14;

[0080] S13, if the host downlink gain current value Gzc is less than the system design value Gze, enter the host downlink gain adjustment process, adjust the host downlink gain current value according to the slave output power Po, and execute S15 after the adjustment is completed;

[0081] S14, if the current value of the slave downlink gain Gcc is less than the system design value Gce, and the current value of the master downlink gain Gzc is less than the system design value Gze, according to the slave output power value Po, in combination with the received signal RSRP value, SINR value and cell PCI and the number of adjacent cells on the current 5G signal frequency band, the master-slave gain adjustment process is entered to obtain a set of optimal values of the master and slave gains, the master and slave are configured respectively, and after the configuration is completed, S15 is executed;

[0082] S15, the optimization is completed, and a prompt is given through the mobile phone.

[0083] Referring to Figure 7 , the specific method of the difference value distribution process is as follows:

[0084] S71, the total gain value G to be distributed is determined, G=Gce-Gcc-Gcdet+Gze-Gzc-Gzdet;

[0085] S72, the total gain value G is divided into two parts, one part is the gain amount Gz distributed to the master, and the other part is the gain amount Gc distributed to the slave, Gz+Gc=G;

[0086] S73, the mobile phone starts from 0 with a step of 1 dB according to the gain amount Gz distributed to the master, until the gain amount Gz distributed to the master is equal to the total gain value G, the gain amount Gc distributed to the slave is G-Gz, and there are int(G)+1 distribution schemes in total, int being an integer operation;

[0087] S74, the mobile phone sends the gain amount Gz distributed to the master and the gain amount Gc distributed to the slave of each distribution scheme to the master and the slave for gain configuration;

[0088] S75, the cell signal RSRP value, SINR value and PCI and the number of adjacent cells received by the mobile phone under the current gain configuration are recorded;

[0089] S76, the distribution gain Gz[i] sent to the master is defined as the i-th, the distribution gain Gc[i] sent to the slave at this time is defined, and the corresponding information received by the mobile phone is Rsrp[i], Sinr[i], Pci[i] and Neb[i];

[0090] All schemes are traversed, the value of Pci[i] is compared, the PCI with the most occurrences is taken as the available PCI, and the parameters corresponding to other PCIs are all removed;

[0091] In the remaining data, the maximum Sinr[i] is selected as the reference, if there are multiple maximum Sinr[i] values, the maximum Rsrp[i] is selected as the reference in these data, if there are multiple maximum Rsrp[i] values, the minimum Neb[i] is selected as the reference in the remaining data, if there are multiple minimum Neb[i] values, the minimum i value is taken as the reference. Get a set of optimal values of the gain amount allocated to the master and the gain amount allocated to the slave, send to the master and the slave for configuration, after the configuration is completed, the system optimization is completed, and the mobile phone prompts the current system optimization is completed.

[0092] Referring to Figure 8 , the method of host downlink gain adjustment process is as follows:

[0093] The mobile phone controls the host to enter the host downlink gain adjustment process, adjusts the downlink gain of the host according to the slave output power Po with each step of 0.5dB, until the slave output power Po is equal to the set threshold value Po max Or the current value of the host downlink gain Gzc is equal to the system design value Gze. Complete the system optimization, and the mobile phone prompts the current system optimization is completed.

[0094] Referring to Figure 9 , the method of slave downlink gain adjustment process is as follows:

[0095] The mobile phone controls the slave to enter the slave downlink gain adjustment process, adjusts the downlink gain of the slave according to the slave output power Po with each step of 0.5dB, until the slave output power Po is equal to the set threshold value Po max Or the current value of the slave downlink gain Gcc is equal to the system design value Gce. Complete the system optimization, and the mobile phone prompts the current system optimization is completed.

[0096] Referring to Figure 10 , the specific method of master-slave gain adjustment process is as follows:

[0097] Calculate the sum Gd of the difference between the current value of the downlink gain of the master and the slave Gzc and the system design value Gze, compare the sum Gd with the difference Pd between the slave output power Po and Po max ;

[0098] If the Gd value is less than the Pd value, the downlink gain current values of the master and the slave are all set to the system design value; otherwise, the preset threshold value Gzdet and the value of Gd-Pd are judged, if the preset threshold value Gzdet is large, the downlink gain current value of the master is set to Gze-(Gd-Pd), and the downlink gain current value of the slave is set to the system design value; if the latter is large, the preset threshold value Gcdet and the value of Gd-Pd-Gzdet are judged, if the preset threshold value Gcdet is large, the downlink gain current value of the master is set to Gze-Gzdet, and the downlink gain current value of the slave is set to Gce-(Gd-Pd-Gzdet); if the preset threshold value Gcdet is small, the difference allocation process is entered, and the total gain value G to be allocated is Gd-Pd-Gzdet-Gcdet.

[0099] In actual application, the application is divided into two modules of master and slave. Generally, the master is placed in an area covered by a 5G base station signal, receives a 5G radio frequency signal transmitted by a 5G base station device, then shifts the 5G radio frequency signal to an ISM frequency band by frequency shifting, generally uses a 5.8 GHz frequency band, then transmits a signal in the ISM frequency band. After the slave receives the wireless signal in the ISM frequency band, the slave shifts the signal back to the standard frequency band used by the 5G base station for transmission, and transmits the signal, thereby regenerating a 5G signal coverage area at the location of the slave, so as to expand the coverage range of the 5G base station. The master and the slave use wireless frequency-shift signals for relaying, thereby reducing the workload of opening the system, reducing the difficulty of using the system, and making the system more easily applied in a large area.

Claims

1. A network coverage self-optimization method for a master-slave form 5G wireless frequency-shift repeater, characterized in that, The method comprises the following steps: S1, the host and the slave establish a communication link, the slave establishes a communication with the mobile phone, and the mobile phone is enabled to work in a 5G signal frequency band of the current host relay; S2, a received signal RSRP value, a SINR value, a primary cell PCI, and a number of neighboring cells of the 5G signal in the current 5G signal frequency band used by the mobile phone are acquired; A current gain value Gzc and a system design value Gze of the downlink of the host are acquired; A current gain value Gcc and a system design value Gce of the downlink of the slave are acquired; A slave output signal power value Po is acquired; S3, output the signal power value Po from the slave to compare with the preset threshold value Po max If the signal power value Po from the slave is greater than the preset threshold value Po max S4 is executed; otherwise, S10 is executed. S4, the current gain value Gcc of the downlink of the slave is compared with the system design value Gce, if the current gain value Gcc is equal to the system design value Gce, S5 is executed, otherwise, S8 is executed; S5, the current gain value Gzc of the downlink of the host is compared with the system design value Gze, if the current gain value Gzc is equal to the system design value Gze, S15 is executed; Otherwise, S6 is executed; S6, if the current gain value Gzc of the downlink of the host is less than the system design value Gze, a difference value between the current gain value Gzc of the downlink of the host and the system design value Gze is judged, if the difference value is less than a preset threshold value Gzdet, S15 is executed; Otherwise, S7 is executed; S7, a difference value distribution process is entered, the host and the slave are configured respectively, and S15 is executed after the configuration is completed; S8, if the current gain value Gcc of the downlink of the slave is less than the system design value Gce, and the current gain value Gzc of the downlink of the host is equal to the system design value Gze, S9 is executed, otherwise, S7 is executed; S9, a difference value between the current gain value Gcc of the downlink of the slave and the system design value Gce is compared, if the difference value is less than a preset threshold value Gcdet, S15 is executed; Otherwise, S7 is executed; S10, if the slave output signal power is less than a preset threshold value Po max If the slave downlink gain current value Gcc is equal to the system design value Gce, S11 is performed. Otherwise, S12 is executed; S11, if the current gain value Gzc of the downlink of the host is equal to the system design value Gze, S15 is executed, otherwise, S13 is executed; S12, if the current gain value Gcc of the downlink of the slave is less than the system design value Gce, the current gain value Gzc of the downlink of the host is compared with the system design value Gze, if the current gain value Gzc of the downlink of the host is equal to the system design value Gze, a slave downlink gain adjustment process is entered, the current gain value of the downlink of the slave is adjusted according to the slave output power value Po, and S15 is executed after the adjustment is completed; Otherwise, S14 is executed; S13, if the current gain value Gzc of the downlink of the host is less than the system design value Gze, a host downlink gain adjustment process is entered, the current gain value of the downlink of the host is adjusted according to the slave output power Po, and S15 is executed after the adjustment is completed; S14, if the current value of the slave downlink gain Gcc is less than the system design value Gce, and the current value of the master downlink gain Gzc is less than the system design value Gze, according to the slave output power value Po, in combination with the received signal RSRP value, SINR value and the number of cell PCIs and neighboring cells on the current 5G signal frequency band, the master-slave gain adjustment process is entered to obtain a set of optimal values of the master and slave gains, and the master and slave are configured respectively, and after the configuration is completed, S15 is executed; S15, the optimization is completed, and a prompt is given through the mobile phone.

2. The network coverage self-optimization method of the master-slave form 5G wireless frequency-shift repeater according to claim 1, characterized in that, After the mobile phone establishes a connection with the slave, the slave sends the connection information with the mobile phone to the master, and the master establishes a connection with the mobile phone according to the connection information.

3. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, characterized in that, The specific method of S7 is as follows: According to the received difference values, the master and the slave respectively adjust the current values of their respective gains, the mobile phone obtains the received signal RSRP value, SINR value and the number of the current 5G signal master cells and neighboring cells on the 5G signal frequency band, and after the mobile phone executes all the difference value allocation schemes, according to all the obtained parameters, a set of optimal values is obtained after processing, and the master and the slave are configured respectively, and after the configuration is completed, S15 is executed.

4. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, wherein, The specific method of the difference value allocation process is as follows: S71, determine the total gain value G to be allocated; S72, divide the total gain value G into two parts, one part is the gain amount Gz allocated to the master, and the other part is the gain amount Gc allocated to the slave; S73, the gain amount Gz allocated to the master starts from 0 and steps up until the gain amount Gz allocated to the master is equal to the total gain value G, and there are int(G)+1 allocation schemes in total, where int is the integer operation; S74, send the gain amount Gz allocated to the master and the gain amount Gc allocated to the slave of each allocation scheme to the master and the slave for gain configuration; S75, record the cell signal RSRP value, SINR value and PCI and the number of neighboring cells received by the mobile phone under the current gain configuration; S76, traverse all the schemes to obtain a set of optimal values of the gain amount allocated to the master and the gain amount allocated to the slave, and send them to the master and the slave for configuration.

5. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 4, characterized in that, The method of traversing all the schemes to obtain a set of optimal values of the gain amount allocated to the master and the gain amount allocated to the slave is as follows: Define the allocation gain sent to the master for the ith time as Gz[i], and the allocation gain sent to the slave at this time as Gc[i], and the corresponding information received by the mobile phone as Rsrp[i], Sinr[i], Pci[i] and Neb[i]; After all the schemes are traversed, compare the values of Pci[i], and take the PCI with the most occurrences as the available PCI, and remove all the parameters corresponding to the other PCIs; In the remaining data, select the maximum Sinr[i] as the reference, if there are multiple maximum Sinr[i] values, select the maximum Rsrp[i] in these data as the reference, if there are multiple maximum Rsrp[i] values, select the minimum Neb[i] in the remaining data as the reference, and if there are multiple minimum Neb[i] values, take the group with the minimum i value as the reference.

6. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, wherein, In S12, the method of the slave downlink gain adjustment process is as follows: The slave downlink gain is adjusted in steps of a fixed gain each time according to the slave output power Po until the slave output power Po equals a set threshold value Po max or the slave downlink gain current value Gcc equals a system design value Gce.

7. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, wherein, In S13, the method of the master downlink gain adjustment process is as follows: According to the slave output power Po, the downlink gain of the master is adjusted in steps of a fixed gain each time until the slave output power Po equals a set threshold value Po max Or the current value Gzc of the downlink gain of the master equals the system design value Gze.

8. The method of claim 1, wherein the master-slave form 5G wireless frequency-shift repeater network coverage self-optimization method is characterized by, In S14, the specific method of the master-slave gain adjustment process is as follows: The sum Gd of the difference between the current value Gzc of the downlink gain of the master and the slave and the system design value Gze is calculated, and the case where the sum Gd of the difference is compared with the difference Pd between the slave output power Po and Po max design value Gze is calculated, and the case where the sum Gd of the difference is compared with the difference Pd between the slave output power Po and Po If the value of Gd is less than the value of Pd, the current values of the downlink gain of the master and the slave are all set to the system design value; Otherwise, the value of the preset threshold Gzdet and Gd-Pd is judged, if the preset threshold Gzdet is large, the current value of the downlink gain of the master is set to Gze-(Gd-Pd), and the current value of the downlink gain of the slave is set to the system design value; if the latter is large, the value of the preset threshold Gcdet and Gd-Pd-Gzdet is judged, if the preset threshold Gcdet is large, the current value of the downlink gain of the master is set to Gze-Gzdet, and the current value of the downlink gain of the slave is set to Gce-(Gd-Pd-Gzdet); if the preset threshold Gcdet is small, the difference allocation process is entered, and the total gain value G= Gd-Pd-Gzdet-Gcdet needs to be allocated.

9. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, wherein, The master and the slave are connected through the wireless relay link ISM band and Bluetooth communication.

10. The network coverage self-optimization method of a master-slave form 5G wireless frequency-shift repeater according to claim 1, wherein, The slave and the mobile phone are connected through Bluetooth communication.

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