5G micro base station indoor and outdoor deployment signal enhancement method and system and electronic equipment

Abstract

The invention discloses a 5G micro base station indoor and outdoor deployment signal enhancement method and system and electronic equipment, and the method comprises the steps: deploying micro base stations indoors and outdoors respectively, recording log data when the micro base stations pass back data, classifying the log data, and filtering out hidden error data; deploying a two-step spelling correction model in a server of the micro base station, and correcting mistakenly spelled data caused by abnormal blind compensation and shunting in the log data; the outdoor micro base station receives outdoor laser communication signals and transmits the outdoor laser communication signals to the indoor micro base station, and the indoor micro base station transmits indoor radio waves. According to the method, the micro base stations are deployed for different environments and purposes, the signal coverage range is expanded, a two-step spelling correction model is used, and data errors are reduced.

Description

Technical Field

[0001] The present invention belongs to the field of micro base stations, and specifically relates to a 5G micro base station indoor and outdoor deployment signal enhancement method, system and electronic equipment. Background Art

[0002] UWB (Ultra Wide Band) is a wireless communication technology that transmits data by using nanosecond non-sinusoidal narrow pulses instead of traditional sinusoidal carriers. This technology was originally used for military radars, but due to its high bandwidth and low power consumption, it has gradually been applied to the civilian field.

[0003] A micro base station (Small Cell) is a miniaturized base station, usually referring to a small base station installed in a building or densely populated area. This type of base station is small in size, has a small coverage area, and carries a relatively low number of users.

[0004] Small Cell is widely used in various scenarios, including hotels, shopping malls, office buildings, stations and airports, commercial streets, residential areas, squares, etc. Small Cell can be flexibly deployed according to coverage requirements, and different equipment forms can be coordinated with macro cells to solve the following problems: indoor deep coverage, capacity requirements in outdoor hot spots, supplementary coverage in weak areas of outdoor macro cells, and extended coverage at the edge of macro cells. In order to analyze the deployment strategy of SmallCell more targetedly, the main scenarios of SmallCell application can be summarized into residential areas, transportation hubs, public places and office buildings according to environmental characteristics and coverage requirements. Small Cell is usually used to solve some problems in the following scenarios. Due to the influence of buildings and trees, the coverage effect is uneven and there are a large number of blind spots. When macro stations penetrate buildings and enter indoors, there will be a penetration loss of 10-20dB, which cannot play the performance advantages of 5G. By introducing SmallCell products in indoor coverage, MIMO can be supported to improve the capacity of indoor coverage. After SmallCell is introduced into the macro network, through the introduction of interference management algorithms and coordination mechanisms, effective coordination in the three dimensions of frequency domain, time domain and spatial domain can be achieved, and the overall network capacity can be significantly improved by several times or even dozens of times. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a 5G micro base station indoor and outdoor deployment signal enhancement method, system and electronic equipment.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A 5G micro base station indoor and outdoor deployment signal enhancement method comprises the following steps:

[0008] Micro base stations are deployed indoors and outdoors respectively, and log data is recorded when the micro base stations transmit data back. The log data is classified and hidden error data is filtered out. A two-step spelling correction model is deployed in the server of the micro base station to correct the misspelling data caused by abnormal blind filling and diversion in the log data. The outdoor micro base station receives the outdoor laser communication signal and transmits it to the indoor micro base station, and the indoor micro base station transmits indoor radio waves.

[0009] To optimize the above technical solutions, the specific measures taken also include:

[0010] Furthermore, the deployment of micro base stations indoors and outdoors respectively is specifically as follows:

[0011] Outdoor micro base station deployment:

[0012] When outdoor micro base stations are used to meet hotspot capacity requirements, macro cells and micro cells are networked in different frequencies. In other cases, outdoor micro base stations use macro cells and micro cells in the same frequency network.

[0013] Adjust outdoor micro-cell coverage using interference cancellation techniques and directional antenna methods;

[0014] When outdoor micro base stations and macro base stations are networked together, the residence strategy is configured so that users randomly reside between micro cells and macro cells based on coverage; when solving capacity problems, users are configured to reside in micro cells first;

[0015] The deployment locations of outdoor micro base stations include: hanging on public infrastructure, arranging at road turning points, and using a cross-layout method for scenarios with long straight roads and buildings on both sides;

[0016] Indoor micro base station deployment:

[0017] Indoor micro base stations use baseband-fed indoor coverage systems or low-power integrated micro base stations. If the target construction scenario does not have wired private network backhaul resources, use low-power integrated micro base stations and use XDSL or XPON technology for data backhaul through the wired public network.

[0018] Furthermore, the filtering out of hidden error data is specifically as follows:

[0019] The mean square error and root mean square error are used as error indicators of the classified log data. When the mean square error and root mean square error are both greater than the set value, the log data is considered to be error data and is filtered out.

[0020] Furthermore, the two-step spelling correction model is specifically:

[0021] The two-step spelling correction model includes a misspelled word identifier and a misspelled word corrector;

[0022] The misspelled word identifier is used to identify misspelled words in adversarial samples and provide these misspelled words to the misspelled word corrector for correction, while ensuring that the correctly spelled words in the adversarial samples are not modified;

[0023] The misspelled word corrector is used to correct the misspelled word according to the spelling information and context information of the misspelled word.

[0024] Furthermore, the process of the micro base station returning data preferably adopts wired transmission mode, and selects private network backhaul or public network backhaul. When public network backhaul is selected, an IP security tunnel is established between the micro base station and the security gateway.

[0025] Furthermore, the outdoor micro base station receives the outdoor laser communication signal and transmits it to the indoor micro base station. Specifically, the outdoor micro base station uses an avalanche breakdown diode photodetector to receive the outdoor laser communication signal and transmit it to the indoor micro base station.

[0026] Furthermore, the channel model for indoor radio wave transmission by the indoor micro base station is IEEE802.15.3a, and the channel model is expressed as:

[0027]

[0028] Where h(t) represents the channel response, X represents the log-normal shadow attenuation, L represents the number of clusters, l represents the index of L, K represents the number of multipaths in each cluster, k represents the index of K, and a k,l represents the attenuation coefficient of the kth path in the lth cluster, T l represents the arrival time of the lth cluster, τ k,l represents the delay of the kth path in the lth cluster relative to the first path, t represents time, and δ() represents the time function of channel attenuation.

[0029] Furthermore, the micro base station is powered by PoE.

[0030] The present invention also proposes a 5G micro base station indoor and outdoor deployment signal enhancement system, comprising:

[0031] Log storage device, used to record log data when the micro base station transmits data back;

[0032] The filtering module is used to filter out hidden error data after classifying the log data;

[0033] A correction module, used for correcting misspelled data caused by abnormal blind filling and diversion in log data based on a two-step spelling correction model;

[0034] An outdoor micro base station is used to receive outdoor laser communication signals and transmit them to an indoor micro base station;

[0035] Indoor micro base station, used for indoor radio wave transmission.

[0036] The present invention also proposes an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the 5G micro base station indoor and outdoor deployment signal enhancement method as described above is implemented.

[0037] The beneficial effects of the present invention are as follows: the present invention deploys micro base stations for different environments and purposes, improves signal coverage, uses a two-step spelling correction model, and reduces data errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the two-step spelling correction model;

[0039] Figure 2 This is the schematic diagram of the avalanche breakdown diode. DETAILED DESCRIPTION

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] Embodiment 1

[0042] The present invention proposes a 5G micro base station indoor and outdoor deployment signal enhancement method, comprising the following steps:

[0043] Micro base stations are deployed indoors and outdoors.

[0044] Outdoor micro base station deployment:

[0045] Small Cell is positioned to provide a fast and effective supplement to macro base stations, and can be used to solve problems such as difficulty in coordinating macro base station sites and high site construction costs. When outdoor micro base stations are used to meet hotspot capacity requirements, macro cells and micro base stations are networked in different frequencies. In other cases, outdoor micro base stations use macro cells and micro base stations in the same frequency network.

[0046] Adjust outdoor micro-cell coverage using interference cancellation techniques and directional antenna methods;

[0047] When outdoor micro base stations and macro base stations are networked together, the residence strategy is configured so that users randomly reside between micro cells and macro cells based on coverage; when solving capacity problems, users are configured to reside in micro cells first;

[0048] The deployment locations of outdoor micro base stations include: hanging on public infrastructure, arranging at road turning points, and using a cross-layout method for scenarios with long straight roads and buildings on both sides;

[0049] Indoor micro base station deployment:

[0050] Indoor micro base stations use baseband-fed indoor coverage systems or low-power integrated micro base stations. If the target construction scenario does not have wired private network backhaul resources, use low-power integrated micro base stations and use XDSL or XPON technology for data backhaul through the wired public network.

[0051] Power supply solution: AC (220V) or DC (-48V) is preferred. For scenarios where AC / DC power supply capabilities are not available or the cost of implementing AC / DC power supply transformation is high, PoE power supply can be used according to the capabilities of the SmallCell equipment. When using POE power supply, pay attention to the power supply distance limitation.

[0052] The log data when the micro base station transmits data is recorded, and the hidden error data is filtered out after the log data is classified; the mean square error and root mean square error are used as the error indicators of the classified log data. When the mean square error and root mean square error are both greater than the set value, the log data is considered to be error data and filtered out. The process of micro base station transmitting data back preferably adopts wired transmission mode, and selects private network backhaul or public network backhaul. When public network backhaul is selected, an IP security tunnel is established between the micro base station and the security gateway.

[0053] A two-step spelling correction (Detector-Corrector, DE-CO) model is deployed in the server of the micro base station to correct the misspelled data caused by abnormal blind filling and diversion in the log data; the two-step spelling correction model is specifically as follows:

[0054] The two-step spelling correction (Detector-Corrector, DE-CO) model structure is as follows Figure 1 As shown, it includes a misspelled word recognizer and a misspelled word corrector;

[0055] The misspelled word identifier is used to identify misspelled words in adversarial samples and provide these misspelled words to the misspelled word corrector for correction, while ensuring that the correctly spelled words in the adversarial samples are not modified;

[0056] The misspelled word corrector is used to correct the misspelled word according to the spelling information and context information of the misspelled word.

[0057] Algorithm 1 describes the workflow of the DE-CO model.

[0058] Algorithm 1: Defending against adversarial examples through the DE-CO model

[0059] Input: Adversarial sample x, misspelled word detector D, misspelled word corrector C, text classifier f

[0060] Output: label y

[0061] 1: output D ←D(x)

[0062] 2: output C ←C(x)

[0063] 3: len, len(x)

[0064] 4:

[0065] 5: for i = 1 to len x do

[0066] 6: if output t b [i] = -1 then

[0067] 7: x[i]...output C [i]

[0068] 8: end if

[0069] 9: end for

[0070] 10:10:y←f(x)

[0071] 11:11:Return y

[0072] The outdoor micro base station uses an avalanche breakdown diode photodetector to receive outdoor laser communication signals and transmit them to the indoor micro base station.

[0073] The structure and parameters of the avalanche diode (SPAD) photodetector are as follows: the device is made of a layer of polysilicon and a double-layer metal CMOS process. The overall diameter of the device is 12um cylindrical and symmetrical. The active area is also cylindrical with an area of ​​about 100um, which is sufficient for most applications. The standard source / drain P shallow junction injection method is used to make a PN junction deep P diffusion in a 5um deep N well to form a protection ring to prevent edge breakdown and define the high field area of ​​the junction. The active area breakdown voltage is 16V, the edge breakdown voltage is 55V, and the N well and bottom breakdown voltage is 80V. The 0.8mN well CMOS process has a photon detection efficiency of more than 20% in the range of 400nm to 700nm wavelength, and the detection efficiency reaches a peak of 40% when the wavelength is 500nm. When the wavelength is 820nm, the beam half-maximum full width (Full Wave at Half Maximum, FWHM) is 36ps, and the time constant is 910ps and other performance indicators.

[0074] like Figure 2As shown, the substrate is grounded, and the reverse bias voltage is provided by two power supplies: forward Vigh and reverse Vow, and the overvoltage is |V high |+|V low |-V B , V B The built-in potential of the PN junction. Photons are either absorbed by the depletion region at the top or by the intermediate layer below. Most of the root carrier holes used for avalanche triggering drift toward the P* injected at the top. The photogenerated root carriers replace the arrival time of the photons with the rising edge of the avalanche pulse. Hot carriers can also trigger avalanches and are also the source of intrinsic noise of the detector. The photon detection efficiency and light response rate increase with the increase of overvoltage. The advantages of this detector are that the photon detection efficiency is greatly improved, the light response rate is also improved, and the noise is relatively low.

[0075] Indoor micro base stations transmit indoor radio waves. The channel model for indoor micro base stations to transmit indoor radio waves is IEEE 802.15.3a. IEEE 802.15.3a is a short-distance (within 10m) and high-speed data transmission (110-480Mbit / s) channel model, which is evolved from the SV model. This model retains the characteristics of multipath clustered arrival and energy obeying double exponential distribution in the SV model, and at the same time makes certain corrections based on actual measurement results, changing the statistical characteristics of multipath attenuation from the original Rayleigh distribution to the existing log-normal distribution, and changing the channel coefficients to real numbers. The channel model is expressed as:

[0076]

[0077] Where h(t) represents the channel response, X represents the log-normal shadow attenuation, L represents the number of clusters, l represents the index of L, K represents the number of multipaths in each cluster, k represents the index of K, and a k，l represents the attenuation coefficient of the kth path in the lth cluster, T l represents the arrival time of the lth cluster, τ k，l represents the delay of the kth path in the lth cluster relative to the first path, t represents time, and δ() represents the time function of channel attenuation.

[0078] IEEE 802.15.3a provides reference values ​​for different environments. Based on the average distance between the transmitting and receiving nodes and whether there is line of sight, four different standard measurement channels are given, as shown in the table below.

[0079] Model Type Whether line of sight Distance / m CM1 LOS 0～4 CM2 NLOS 0～4 CM3 NLOs 4～10 CM4 NLOS Extreme

[0080] The present invention also proposes a 5G micro base station indoor and outdoor deployment signal enhancement system corresponding to the method of embodiment 1, comprising:

[0081] Log storage device, used to record log data when the micro base station transmits data back;

[0082] The filtering module is used to filter out hidden error data after classifying the log data;

[0083] A correction module, used for correcting misspelled data caused by abnormal blind filling and diversion in log data based on a two-step spelling correction model;

[0084] An outdoor micro base station is used to receive outdoor laser communication signals and transmit them to an indoor micro base station;

[0085] Indoor micro base station, used for indoor radio wave transmission.

[0086] The implementation methods of each module and module function in the system are completely consistent with the steps of the method in Example 1, so they will not be repeated here.

[0087] The present invention also proposes an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the 5G micro base station indoor and outdoor deployment signal enhancement method as described in Example 1 is implemented.

[0088] In the embodiments disclosed in the present application, the computer storage medium can be a tangible medium that can contain or store a program for use by or in combination with an instruction execution system, device or equipment. The computer storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the above. More specific examples of computer storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above.

[0089] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0090] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A 5G micro base station indoor and outdoor deployment signal enhancement method, characterized in that: The following steps are involved: Micro base stations are deployed indoors and outdoors respectively, and log data is recorded when the micro base stations transmit data back. The log data is classified and hidden error data is filtered out. A two-step spelling correction model is deployed in the server of the micro base station to correct the misspelling data caused by abnormal blind filling and diversion in the log data. The outdoor micro base station receives the outdoor laser communication signal and transmits it to the indoor micro base station, and the indoor micro base station transmits indoor radio waves.

2. The 5G micro base station indoor and outdoor deployment signal enhancement method according to claim 1, characterized in that: The deployment of micro base stations indoors and outdoors respectively is specifically as follows: Outdoor micro base station deployment: When outdoor micro base stations are used to meet hotspot capacity requirements, macro cells and micro cells are networked in different frequencies. In other cases, outdoor micro base stations use macro cells and micro cells in the same frequency network. Adjust outdoor micro-cell coverage using interference cancellation techniques and directional antenna methods; When outdoor micro base stations and macro base stations are collaboratively networked, the residence strategy is configured so that users randomly reside between micro cells and macro cells based on coverage; When solving capacity issues, users are configured to reside in micro cells first; The deployment locations of outdoor micro base stations include: hanging on public infrastructure, arranging at road turning points, and using a cross-layout method for scenarios with long straight roads and buildings on both sides; Indoor micro base station deployment: Indoor micro base stations use baseband-fed indoor coverage systems or low-power integrated micro base stations. If the target construction scenario does not have wired private network backhaul resources, use low-power integrated micro base stations and use XDSL or XPON technology for data backhaul through the wired public network.

3. The 5G micro base station indoor and outdoor deployment signal enhancement method according to claim 1, characterized in that: The filtering out of hidden error data is specifically as follows: The mean square error and root mean square error are used as error indicators of the classified log data. When the mean square error and root mean square error are both greater than the set value, the log data is considered to be error data and is filtered out.

4. The 5G micro base station indoor and outdoor deployment signal enhancement method as claimed in claim 1, characterized in that: The two-step spelling correction model is specifically: The two-step spelling correction model includes a misspelled word identifier and a misspelled word corrector; The misspelled word identifier is used to identify misspelled words in adversarial samples and provide these misspelled words to the misspelled word corrector for correction, while ensuring that the correctly spelled words in the adversarial samples are not modified; The misspelled word corrector is used to correct the misspelled word according to the spelling information and context information of the misspelled word.

5. The 5G micro base station indoor and outdoor deployment signal enhancement method as claimed in claim 1, characterized in that: The process of the micro base station returning data preferably adopts wired transmission mode, and selects private network return or public network return. When public network return is selected, an IP security tunnel is established between the micro base station and the security gateway.

6. The 5G micro base station indoor and outdoor deployment signal enhancement method according to claim 1, characterized in that: The outdoor micro base station receives the outdoor laser communication signal and transmits it to the indoor micro base station specifically: the outdoor micro base station uses an avalanche breakdown diode photodetector to receive the outdoor laser communication signal and transmit it to the indoor micro base station.

7. The 5G micro base station indoor and outdoor deployment signal enhancement method according to claim 1, characterized in that: The channel model for indoor radio wave transmission by the indoor micro base station is IEEE802.15.3a, and the channel model is expressed as: Where h(t) represents the channel response, X represents the log-normal shadow attenuation, L represents the number of clusters, l represents the index of L, K represents the number of multipaths in each cluster, k represents the index of K, and a k,l represents the attenuation coefficient of the kth path in the lth cluster, T l represents the arrival time of the lth cluster, τ k,l represents the delay of the kth path in the lth cluster relative to the first path, t represents time, and δ() represents the time function of channel attenuation.

8. The 5G micro base station indoor and outdoor deployment signal enhancement method as claimed in claim 1, characterized in that: The micro base station is powered by PoE.

9. A 5G micro base station indoor and outdoor deployment signal enhancement system, characterized in that: include: Log storage device, used to record log data when the micro base station transmits data back; The filtering module is used to filter out hidden error data after classifying the log data; A correction module, used for correcting misspelled data caused by abnormal blind filling and diversion in log data based on a two-step spelling correction model; An outdoor micro base station is used to receive outdoor laser communication signals and transmit them to an indoor micro base station; Indoor micro base station, used for indoor radio wave transmission.

10. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for enhancing the signal of indoor and outdoor deployment of a 5G micro base station as described in any one of claims 1 to 8 is implemented.

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