CN111225408A - SmallCell base station-based wireless environment monitoring method, device, equipment and storage medium - Google Patents
SmallCell base station-based wireless environment monitoring method, device, equipment and storage medium Download PDFInfo
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Abstract
The invention relates to a method, a device, equipment and a storage medium for monitoring a wireless environment based on a SmallCell base station, wherein the monitoring method comprises the following steps: adjusting the coverage area of SmallCell base stations installed in the wireless environment monitoring area and/or the number of the SmallCell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area; detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station; and making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value. The invention can accurately monitor the wireless environment of the wireless environment monitoring area in real time, discover the change of the wireless environment monitoring area in time and make a targeted decision.
Description
Technical Field
The invention relates to the technical field of wireless environment monitoring, in particular to a method, a device, equipment and a storage medium for wireless environment monitoring based on a SmallCell base station.
Background
Mobile communication has evolved to the fifth generation, each undergoing extensive network construction, particularly 2G and 4G. Also, 2G, 3G and 4G devices are currently in use on a large scale. In addition, although the modulation schemes used by the communication devices of each generation are different, the repetition rate is high for the scarce spectrum resources, which may have an important influence on the air interface environment.
Fig. 1 shows a situation where one of the air interface environments has changed interference. Macro base stations are base stations that are often deployed outdoors and have large power and coverage areas. The signal of the macro base station 2 is mainly covered in the original monitoring area, and due to macro network adjustment (structural adjustment such as adjusting the covering direction, adding/deleting stations and the like) or ambient environment change (building construction and dismantling and the like), the covering signal of the macro base station 3 enters the monitoring area from the original covered position adjustment, so that the wireless environment of the monitoring area changes, and telecommunication operators often need to find the reason for changing the wireless environment in the process of communication equipment construction and maintenance.
Disclosure of Invention
The present invention is directed to overcome at least one of the above-mentioned drawbacks (deficiencies) of the prior art, and provides a method, an apparatus, a device and a storage medium for monitoring a wireless environment based on a smallcaell base station, which can accurately monitor the wireless environment of a wireless environment monitoring area in real time, discover changes in the wireless environment of the wireless environment monitoring area in time, and make a targeted decision.
The technical scheme adopted by the invention is as follows:
a wireless environment monitoring method based on SmallCell base stations comprises the following steps:
adjusting the coverage area of SmallCell base stations installed in the wireless environment monitoring area and/or the number of the SmallCell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area;
detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station;
and making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
In order to accurately monitor the wireless environment in real time in the wireless environment monitoring area, the SmallCell base stations can be installed in the wireless environment monitoring area, and the coverage area of the SmallCell base stations and/or the number of the SmallCell base stations can be adjusted, so that the SmallCell base stations can cover the specified wireless environment monitoring area. Because the SmallCell base station has the advantages of plug and play and convenience in deployment, the coverage area and the number of the SmallCell base station can be flexibly and quickly adjusted in the face of the change and adjustment of a wireless environment monitoring area, and the efficient monitoring effect with low cost is achieved. According to the change detection of the background noise value of the SmallCell base station to the wireless environment monitoring area, the change of the wireless environment monitoring area can be found in time and a pointed decision can be made, so that the monitoring accuracy and instantaneity of the wireless environment are improved, and meanwhile, expensive monitoring and maintenance cost is not brought.
Further, adjusting the coverage area of the smallcall cell base stations installed in the wireless environment monitoring area and/or the number of the smallcall cell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area, specifically:
according to the range of a wireless environment monitoring area and the antenna coverage performance of the SmallCell base station, adjusting one or more of the inclination angle, the azimuth angle and the coverage power of the antenna to enable the coverage area of the SmallCell base station to cover the wireless environment monitoring area;
when the SmallCell base stations are multiple, the coverage areas of the SmallCell base stations are not overlapped with each other;
when the coverage area of the SmallCell base stations cannot cover the wireless environment monitoring area, the number of the SmallCell base stations is increased, so that the sum of the coverage areas of all the SmallCell base stations covers the wireless environment monitoring area, and the coverage area of each SmallCell base station is adjusted, so that the coverage areas of the SmallCell base stations are not overlapped.
When the coverage range of the SmallCell base station is adjusted, the coverage ranges of different SmallCell base stations are adjusted to be not overlapped, and mutual interference of the SmallCell base stations during real-time monitoring and detection can be avoided. When the wireless environment monitoring area is larger, the number of SmallCell base stations can be increased to meet the requirement of covering the wireless environment monitoring area.
Further, the SmallCell base stations are at least three.
The quantity of SmallCell base stations is at least three, can acquire the background noise numerical value of different places in the wireless environment monitored area more accurately, comprehensively, and when the wireless environment monitored area appeared the interference and led to the background noise numerical value to change, through the background noise numerical value that at least three SmallCell base stations detected, also can fix a position the interference more easily.
Further, detecting, by the smallcall cell base station, a change in a background noise value of the wireless environment monitoring area, including:
and opening the SmallCell base stations one by one, and sequentially detecting the change of the background noise value of the wireless environment monitoring area through each SmallCell base station.
The SmallCell base stations are started one by one, and the SmallCell base stations sequentially change the background noise value of the wireless environment monitoring area, so that each SmallCell base station cannot be influenced by other SmallCell base stations during detection, and the interference can be accurately positioned in the range covered by the SmallCell base station or the handover position of the interference in the range covered by the SmallCell base stations according to the background noise value change detected by each SmallCell base station.
Further, making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value specifically comprises:
and analyzing and processing the change of the background noise value, and judging whether the wireless environment monitoring area is suitable for building a station and/or whether signal coverage needs to be adjusted and/or whether signal interference exists.
The change of the background noise value detected by the SmallCell base station is analyzed and processed, so that a telecommunication operator can make decisions on the establishment and adjustment of communication equipment conveniently, the telecommunication operator can find illegal signal interference conveniently in time, and other applications can make decision analysis on environment judgment and other purposes on the wireless environment of a wireless environment monitoring area conveniently.
Further, when it is determined that signal interference exists in the wireless environment monitoring area, the method further includes:
respectively receiving the wireless signals sent by the interference after each SmallCell base station is started;
determining a distance between each SmallCell base station and the interference from the wireless signal.
According to the wireless signals received by the SmallCell base station, the distance between the SmallCell base station and the interference is determined, and operation and maintenance personnel can take different interference elimination measures according to the distance.
Further, after determining the distance between each smallcall cell base station and the interference, the method further comprises:
acquiring the positioning of the SmallCell base station;
and determining the location of the interference according to the location of the SmallCell base station and the distance between the SmallCell base station and the interference.
According to the positioning of the SmallCell base station and the distance between the SmallCell base station and the interference, the position of the interference can be accurately positioned.
Further, determining a distance between each SmallCell base station and the interference according to the wireless signals comprises:
respectively determining the wireless transmission power, the antenna gain and the signal strength of the interference according to the wireless signals;
determining a path loss value according to the wireless transmitting power, the antenna gain and the signal strength;
and determining the distance between each SmallCell base station and the interference respectively according to the path loss value.
The sum of the interference wireless transmitting power, the interference antenna gain and the path loss value is the signal strength of the wireless signal, three parameters, namely the interference wireless transmitting power, the interference antenna gain and the interference signal strength, can be determined according to the wireless signal received by the SmallCell base station, the path loss value can be obtained after the three parameters are known, and the path loss value is different due to the distance, so the distance between the SmallCell base station and the interference can be determined according to the path loss value.
Further, respectively determining the wireless transmission power, the antenna gain and the signal strength of the interference according to the wireless signals, including:
detecting a signal strength of the interference from a wireless signal;
demodulating the wireless transmitting power of the interference and the identity of the interference from the wireless signal;
and determining the antenna gain of the interference according to the identity of the interference.
After the SmallCell base station receives the wireless signal of the interference transmission, the signal strength of the interference can be detected. The method comprises the steps of demodulating a wireless signal received by a SmallCell base station to obtain an identity mark in the wireless signal, so as to obtain an interference device parameter and a device type, obtaining interference wireless transmitting power from the device parameter, and obtaining an interference antenna gain according to the interference device type.
Further, when the wireless signal is transmitted in a line-of-sight manner, determining a distance between each SmallCell base station and the interference according to the path loss value, specifically according to the following formula:
when the wireless signal is transmitted in a non-line-of-sight manner, determining the distance between each SmallCell base station and the interference according to the path loss value, specifically according to the following formula:
wherein d is a distance between the SmallCell base station and the interference, L is the path loss value, f is the frequency of the wireless signal, N is a distance loss coefficient, Lf (N) is floor penetration loss, N is the number of floors separated between the SmallCell base station and the interference, and X is a slow fading margin.
When a wireless signal is transmitted in a non-line-of-sight mode, measured data such as arrival time, time difference, incident angle and the like cannot correctly reflect the real distance between a sending end and a receiving end, so that different formulas are adopted for the line-of-sight mode and the non-line-of-sight mode to determine the distance between the SmallCell base station and interference according to a link loss value.
Further, detecting, by the smallcall cell base station, a change in a background noise value of the wireless environment monitoring area, including:
presetting monitoring parameters, wherein the monitoring parameters comprise a detection period and/or a detection frequency band;
and detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station according to the monitoring parameters.
According to actual monitoring requirements, presetting a detection period to be every hour, every day and the like, and/or presetting a detection frequency band of the background noise, and detecting the change of the background noise value according to preset monitoring parameters, so that the wireless environment monitoring of a wireless environment monitoring area is more flexible.
An interference monitoring device based on SmallCell base station, comprising:
the system comprises a background noise acquisition module, a background noise acquisition module and a background noise acquisition module, wherein the background noise acquisition module is used for detecting background noise value change of a wireless environment monitoring area through the SmallCell base station, and the SmallCell base station is installed in the wireless environment monitoring area and adjusts the coverage and/or the number according to the wireless environment monitoring area;
and the environment decision module is used for making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
In order to accurately monitor the wireless environment in real time in the wireless environment monitoring area, the SmallCell base stations can be installed in the wireless environment monitoring area, and the coverage area of the SmallCell base stations and/or the number of the SmallCell base stations can be adjusted, so that the SmallCell base stations can cover the specified wireless environment monitoring area. Because the SmallCell base station has the advantages of plug and play and convenience in deployment, the coverage area and the number of the SmallCell base station can be flexibly and quickly adjusted in the face of the change and adjustment of a wireless environment monitoring area, and the efficient monitoring effect with low cost is achieved. The background noise value change detected by the SmallCell base station is acquired through the background noise acquisition module, then the environment decision-making module makes a decision on the environment of the wireless environment monitoring area according to the background noise value change, the wireless environment change of the wireless environment monitoring area can be found in time, a pointed decision can be made, the wireless environment monitoring accuracy and the instantaneity are improved, and meanwhile, expensive monitoring and maintenance cost is not brought.
A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the smallcall cell base station-based wireless environment monitoring method as described above.
A computer device comprising a memory storing a computer program and a processor implementing the steps of the SmallCell base station based wireless environment monitoring method as described above when the computer program is executed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the SmallCell base station is arranged in the wireless environment monitoring area to detect the change of the background noise value, and the environment of the wireless environment monitoring area is analyzed and decided according to the change of the background noise value, so that the change of the wireless environment monitoring area can be found in time and a targeted decision can be made, for example, whether the wireless environment monitoring area is suitable for building a station or not and/or whether signal coverage needs to be adjusted or not and/or whether signal interference exists or not is judged, the monitoring accuracy and the instantaneity of the wireless environment are improved, meanwhile, expensive monitoring and maintenance cost is not brought, and a large amount of manpower is not needed to be spent on site for long-term resident observation;
(2) by calculating the distance between the SmallCell base stations and the interference, operation and maintenance personnel can take different interference elimination measures according to the distance, and by calculating the distance between at least three SmallCell base stations and the interference, the accurate interference position can be obtained according to three-point positioning.
Drawings
Fig. 1 is a schematic diagram of interference caused by a change in the environment of a wireless environment monitoring area.
Fig. 2 is a flow chart of a wireless environment monitoring method based on smallcall cell base stations in an embodiment of the invention.
Fig. 3 is a flow chart illustrating adjustment of smallcall cell base stations installed in a wireless environment monitoring area according to an embodiment of the present invention.
Fig. 4 is a flow chart of a wireless environment monitoring method based on smallcall cell base stations in another embodiment of the invention.
Fig. 5 is a flow chart illustrating the determination of the distance between the SmallCell base station and the interference in one embodiment of the invention.
Fig. 6 is a schematic application diagram of a wireless environment monitoring method based on smallcall cell base stations in an embodiment of the invention.
Fig. 7 is a schematic diagram of a data server to which the smallcall cell base station-based wireless environment monitoring method is applied in an embodiment of the present invention.
Fig. 8 is a block diagram of a wireless environment monitoring device based on SmallCell base stations according to an embodiment of the present invention.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 2, in one embodiment, a smallcall cell base station-based wireless environment monitoring method is provided, and includes:
s1, adjusting the coverage area of the SmallCell base stations installed in the wireless environment monitoring area and/or the number of the SmallCell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area;
s2, detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station;
and S3, making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
The SmallCell base station is a small-sized, low-cost and extremely convenient cellular access point, and is mainly used for improving the coverage effect in indoor or enterprise scenes. The existing SmallCell base station has the advantages of plug and play, convenience in deployment and the like. In order to accurately monitor the wireless environment in real time in the wireless environment monitoring area, the SmallCell base stations can be installed in the wireless environment monitoring area, and the coverage area of the SmallCell base stations and/or the number of the SmallCell base stations can be adjusted, so that the SmallCell base stations can cover the specified wireless environment monitoring area. Due to the advantages of plug and play and convenience in deployment of the SmallCell base station, the coverage area and the number of the SmallCell base station can be flexibly and quickly adjusted in the face of change and adjustment of a wireless environment monitoring area, and the efficient monitoring effect with low cost is achieved. According to the change detection of the background noise value of the SmallCell base station to the wireless environment monitoring area, the change of the wireless environment monitoring area can be found in time and a pointed decision can be made, so that the monitoring accuracy and instantaneity of the wireless environment are improved, and meanwhile, expensive monitoring and maintenance cost is not brought.
As shown in fig. 3, in an embodiment, in step S1, the coverage area of the smallcall cell base stations installed in the wireless environment monitoring area and/or the number of smallcall cell base stations installed in the wireless environment monitoring area are adjusted according to the wireless environment monitoring area, specifically:
s11, adjusting one or more of an inclination angle, an azimuth angle and coverage power of an antenna according to the range of the wireless environment monitoring area and the coverage performance of the SmallCell base station, so that the coverage area of the SmallCell base station covers the wireless environment monitoring area;
s12, when a plurality of SmallCell base stations are arranged, the coverage areas of the SmallCell base stations are not overlapped with each other;
and S13, when the coverage areas of the SmallCell base stations cannot cover the wireless environment monitoring area, enabling the sum of the coverage areas of all the SmallCell base stations to cover the wireless environment monitoring area by increasing the number of the SmallCell base stations, and adjusting the coverage areas of all the SmallCell base stations to enable the coverage areas of all the SmallCell base stations not to be overlapped.
When the coverage range of the SmallCell base station is adjusted, the coverage ranges of different SmallCell base stations are adjusted to be not overlapped, and mutual interference of the SmallCell base stations during real-time monitoring and detection can be avoided. When the range of the wireless environment monitoring area changes, so that the SmallCell base stations cannot cover the wireless environment monitoring area, the number of the SmallCell base stations can be increased, so that the SmallCell base stations can cover the range of the wireless environment monitoring area, and the requirement of covering the wireless environment monitoring area is met.
In one embodiment, the smallcall cell base stations are at least three.
The quantity of SmallCell base stations is at least three, can acquire the background noise numerical value of different places in the wireless environment monitored area more accurately, comprehensively, and when the wireless environment monitored area appeared the interference and led to the background noise numerical value to change, through the background noise numerical value that at least three SmallCell base stations detected, also can fix a position the interference more easily.
In one embodiment, the step S2 of detecting, by the SmallCell base station, a change in the background noise value of the wireless environment monitoring area includes:
and (4) starting the SmallCell base stations one by one, and sequentially detecting the change of the background noise value of the wireless environment monitoring area through each SmallCell base station.
The SmallCell base stations are started one by one, and the SmallCell base stations sequentially change the background noise value of the wireless environment monitoring area, so that each SmallCell base station cannot be influenced by other SmallCell base stations when in detection, and the interference can be accurately positioned in the range covered by the SmallCell base station or the junction of the SmallCell base stations according to the background noise value change detected by each SmallCell base station, and the operation and maintenance personnel can conveniently conduct further investigation according to the positioning of the interference.
In one embodiment, the step S2 of detecting, by the SmallCell base station, a change in the background noise value of the wireless environment monitoring area includes:
presetting monitoring parameters, wherein the monitoring parameters comprise a detection period and/or a detection frequency band;
and detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station according to the monitoring parameters.
According to actual monitoring requirements, presetting a detection period to be every hour, every day and the like, and/or presetting a detection frequency band of the background noise, and detecting the change of the background noise value according to preset monitoring parameters, so that the wireless environment monitoring of a wireless environment monitoring area is more flexible.
In an embodiment, in step S3, the decision is made on the environment of the wireless environment monitoring area according to the change of the background noise value, specifically:
and analyzing and processing the change of the background noise value, and judging whether the wireless environment monitoring area is suitable for building a station and/or whether signal coverage needs to be adjusted and/or whether signal interference exists.
The change of the background noise value detected by the SmallCell base station is analyzed and processed, so that a telecom operator can judge that the establishment of a new base station can not affect a wireless environment monitoring area, can also judge how the established base station adjusts the coverage area of the base station and can not affect the wireless environment monitoring area, and can also judge whether illegal or unknown signal interference exists in the current wireless environment monitoring area. The change of the background noise value detected by the SmallCell base station is analyzed and processed, and other applications can conveniently judge the environment of the wireless environment monitoring area and perform decision analysis for other purposes.
As shown in fig. 4, in an embodiment, when it is determined that signal interference exists in the wireless environment monitoring area, the method further includes:
s4, respectively receiving wireless signals sent by interference after each SmallCell base station is started;
and S5, determining the distance between each SmallCell base station and the interference according to the wireless signals.
According to the wireless signals received by the SmallCell base station, the distance between the SmallCell base station and the interference is determined, and operation and maintenance personnel can take different interference elimination measures according to the distance. For example, if the distance between the SmallCell base station and the interference is short, the interference needs to be removed to eliminate the influence on the wireless environment monitoring area; if the distance between the SmallCell base station and the interference is long, the coverage range of the interference can be selected to be adjusted to eliminate the influence of the interference on the wireless environment monitoring area.
In one embodiment, after determining the distance between each smallcall base station and the interference, the method further comprises:
s6, acquiring the positioning of the SmallCell base station;
and S7, determining the location of the interference according to the location of the SmallCell base station and the distance between the SmallCell base station and the interference.
The SmallCell base station can be provided with a positioning system, such as a GPS (global positioning system), a Beidou positioning system, a Galileo positioning system and the like, and the positioning of the SmallCell base station is obtained through the positioning system. According to the positioning of the SmallCell base station and the distance between the SmallCell base station and the interference, the position of the interference can be accurately positioned.
As shown in fig. 5, in one embodiment, the determining the distance between each smallcall cell base station and the interference according to the wireless signal in step S5 includes:
s51, respectively determining the wireless transmission power, the antenna gain and the signal strength of interference according to the wireless signals;
s52, determining a path loss value according to the wireless transmitting power, the antenna gain and the signal strength;
and S53, determining the distance between each SmallCell base station and the interference according to the path loss value.
The sum of the interference wireless transmitting power, the interference antenna gain and the path loss value is the signal strength of the wireless signal, three parameters, namely the interference wireless transmitting power, the interference antenna gain and the interference signal strength, can be determined according to the wireless signal received by the SmallCell base station, the path loss value can be obtained after the three parameters are known, and the path loss value is different due to the distance, so the distance between the SmallCell base station and the interference can be determined according to the path loss value.
In one embodiment, the step S51 of determining the wireless transmission power, the antenna gain and the signal strength of the interference according to the wireless signal respectively includes:
detecting the signal strength of interference according to the wireless signal;
demodulating the wireless transmitting power of the interference and the identity of the interference from the wireless signal;
and determining the antenna gain of the interference according to the identity of the interference.
After the SmallCell base station receives the wireless signal of the interference transmission, the signal strength of the interference can be detected. The method comprises the following steps of demodulating a wireless signal received by a SmallCell base station to obtain an identity in the wireless signal, so as to obtain an interfering device parameter and an interfering device type, obtaining interfering wireless transmitting power from the device parameter, and obtaining an interfering antenna gain according to the interfering device type, for example: if the type of the interference equipment is a mobile phone, a tablet computer, a SmallCell base station or the like, the antenna gain of the interference can be known to be 0 dB; if the type of the interfering device is a macro base station or the like, the antenna gain of the interference can be known to be 18 dB.
In one embodiment, when the wireless signal propagates in line-of-sight manner, in step S53, the distance between each SmallCell base station and the interference is determined according to the path loss value, specifically according to the following formula:
when the wireless signal is transmitted in a non-line-of-sight manner, in step S53, the distance between each SmallCell base station and the interference is determined according to the path loss value, specifically according to the following formula:
wherein d is the distance between the SmallCell base station and the interference, L is a path loss value, f is the frequency of a wireless signal, N is a distance loss coefficient, Lf (N) is the floor penetration loss, N is the number of floors separated between the SmallCell base station and the interference, and X is a slow fading margin.
The way radio waves travel along straight lines is called line of sight (LOS). When the direct path is blocked by an obstacle, the radio wave can reach the receiving end only after being reflected and diffracted, and the phenomenon is called non line-of-sight (NLOS). When a wireless signal is transmitted in a non-line-of-sight mode, measured data such as arrival time, time difference, incident angle and the like cannot correctly reflect the real distance between a sending end and a receiving end, so that different formulas are adopted for the line-of-sight mode and the non-line-of-sight mode to determine the distance between the SmallCell base station and interference according to a link loss value.
The method for monitoring the wireless environment based on the SmallCell base station is applied to the interference situation in the wireless environment monitoring field as shown in figure 1. As shown in fig. 6, three smallcall cell base stations, namely smallcall cell base station 1, smallcall cell base station 2 and smallcall cell base station 3, are installed around the wireless environment monitoring area, and the coverage areas of the three smallcall cell base stations are adjusted so that the coverage areas of the three smallcall cell base stations are not overlapped with each other and the sum of the coverage areas covers the wireless environment monitoring area. When the coverage area of the macro base station 3 is changed, the background noise value of the wireless environment monitoring area detected by the SmallCell base station is changed, and whether signal interference exists in the wireless environment monitoring area can be judged according to the detected background noise value change.
The SmallCell base stations are started one by one, the variation of the background noise value of the wireless environment monitoring area is detected sequentially through the SmallCell base stations, the fact that the macro base station 3 causing the variation of the background noise value is in the range covered by the SmallCell base station or the range covered by the SmallCell base stations is crossed and affected most can be obtained, and therefore whether the macro base station 3 needs to carry out signal coverage adjustment or not can be judged.
And respectively receiving wireless signals sent by the macro base station 3 after each SmallCell base station is started, and determining the distance between each SmallCell base station and the macro base station 3 according to the wireless signals. According to the distances between the at least three SmallCell base stations and the macro base station 3, the relative positions of the macro base station 3 and the SmallCell base stations can be obtained. The specific positioning of the macro base station 3 can also be obtained according to the positioning of the smallcall cell base stations and the distances between the at least three smallcall cell base stations and the macro base station 3.
When a macro base station 1 needs to be newly built, the change of the background noise value of the wireless environment monitoring area is detected through the SmallCell base station, and whether the newly built macro base station 1 affects the wireless environment monitoring area or not can be judged according to the detected change of the background noise value.
As shown in fig. 7, the above-mentioned wireless environment monitoring method based on smallcall cell base stations can be applied in a data server. And recording information of the SmallCell base station installed in the wireless environment monitoring area, such as equipment SN, MAC, authentication information and the like, into the data server, starting to connect the SmallCell base station with the data server for monitoring, and executing the steps S1 to S5 by the data server.
Based on the same inventive concept as the above-mentioned smallcall cell base station-based wireless environment monitoring method, as shown in fig. 8, in an embodiment, there is also provided a smallcall cell base station-based wireless environment monitoring apparatus, including:
the system comprises a background noise acquisition module 10, a background noise acquisition module and a background noise acquisition module, wherein the background noise acquisition module is used for detecting the change of a background noise value of a wireless environment monitoring area through a SmallCell base station, and the SmallCell base station is arranged in the wireless environment monitoring area and adjusts the coverage area and/or the number according to the wireless environment monitoring area;
and the environment decision module 20 is configured to make a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
In order to accurately monitor the wireless environment in real time in the wireless environment monitoring area, the SmallCell base stations can be installed in the wireless environment monitoring area, and the coverage area of the SmallCell base stations and/or the number of the SmallCell base stations can be adjusted, so that the SmallCell base stations can cover the specified wireless environment monitoring area. Because the SmallCell base station has the advantages of plug and play and convenience in deployment, the coverage area and the number of the SmallCell base station can be flexibly and quickly adjusted in the face of the change and adjustment of a wireless environment monitoring area, and the efficient monitoring effect with low cost is achieved. The background noise value change detected by the SmallCell base station is acquired through the background noise acquisition module 10, and then the environment of the wireless environment monitoring area is decided through the environment decision module 20 according to the background noise value change, so that the wireless environment change of the wireless environment monitoring area can be found in time and a pointed decision can be made, the wireless environment monitoring accuracy and the instantaneity are improved, and meanwhile, the expensive monitoring and maintenance cost is not brought.
In one embodiment, the smallcall cell base stations are at least three.
The quantity of SmallCell basic stations is at least three, and the noise floor acquisition module 10 can more accurately, comprehensively acquire the noise floor value of different places in the wireless environment monitored area, and when the wireless environment monitored area has appeared the interference and has leaded to the noise floor value to change, through the noise floor value that three SmallCell basic stations detected, also can fix a position the interference more easily.
In one embodiment, the step of detecting, by the smallcaell base station, a change in the value of the background noise of the wireless environment monitoring area by the background noise acquiring module 10 includes:
and (4) starting the SmallCell base stations one by one, and sequentially detecting the change of the background noise value of the wireless environment monitoring area through each SmallCell base station.
The background noise obtaining module 10 opens the smallcall cell base stations one by one, and enables each smallcall cell base station to sequentially change the background noise value of the wireless environment monitoring area, so that each smallcall cell base station cannot be influenced by other smallcall cell base stations when being detected, and the interference can be accurately positioned in the range covered by which smallcall cell base station or the handover position of the range covered by which smallcall cell base stations according to the change of the background noise value detected by each smallcall cell base station, so that operation and maintenance personnel can conveniently conduct further investigation according to the positioning of the interference.
In one embodiment, the environmental decision module 20 is configured to make a decision on the environment of the wireless environment monitoring area according to the change of the background noise value, and includes:
and analyzing and processing the change of the background noise value, and judging whether the wireless environment monitoring area is suitable for building a station and/or whether signal coverage needs to be adjusted and/or whether signal interference exists.
The environment decision module 20 analyzes and processes the change of the background noise value detected by the SmallCell base station, so that a telecom operator can judge that the establishment of a new base station does not affect the wireless environment monitoring area, can also judge how the established base station adjusts the coverage area of the base station without affecting the wireless environment monitoring area, and can also judge whether the current wireless environment monitoring area has illegal or unknown signal interference. The environment decision module 20 analyzes and processes the change of the background noise value detected by the SmallCell base station, and is also convenient for other users to perform environment judgment and decision analysis for other purposes on the wireless environment of the wireless environment monitoring area.
In one embodiment, the smallcall cell base station based wireless environment monitoring apparatus further comprises:
a parameter presetting module 30, configured to preset monitoring parameters, where the monitoring parameters include a detection period and/or a detection frequency band;
and the background noise acquisition module 10 is specifically configured to detect changes in background noise values of the wireless environment monitoring area through the SmallCell base station according to the monitoring parameters.
According to the actual monitoring requirement, the parameter presetting module 30 presets the detection period to be hourly or daily, and the like, and/or presets the detection frequency band of the background noise, and the detection of the change of the background noise value is carried out according to the preset monitoring parameters, so that the wireless environment monitoring of the wireless environment monitoring area is more flexible.
In one embodiment, the smallcall cell base station based wireless environment monitoring apparatus further comprises:
and the distance acquisition module 40 is used for respectively receiving wireless signals sent by the interference after each SmallCell base station is started, and determining the distance between each SmallCell base station and the interference according to the wireless signals.
The distance acquisition module 40 determines the distance between the SmallCell base station and the interference according to the wireless signals received by the SmallCell base station, so that operation and maintenance personnel can take different interference elimination measures according to the distance. For example, if the distance between the SmallCell base station and the interference is short, the interference needs to be removed to eliminate the influence on the wireless environment monitoring area; if the distance between the SmallCell base station and the interference is long, the coverage range of the interference can be selected to be adjusted to eliminate the influence on the wireless environment monitoring area.
In one embodiment, further comprising:
and a positioning obtaining module 50, configured to obtain positioning of the smallcall cell base station, and determine positioning of the interference according to the positioning of the smallcall cell base station and a distance between the smallcall cell base station and the interference.
According to the positioning of the SmallCell base station and the distance between the SmallCell base station and the interference, the position of the interference can be accurately positioned.
In one embodiment, the distance acquisition module 40 includes:
a parameter determining unit 41, configured to determine, according to the wireless signals, wireless transmission power, antenna gain, and signal strength of interference, respectively;
a path loss determining unit 42, configured to determine a path loss value according to the wireless transmission power, the antenna gain, and the signal strength;
and a distance determining unit 43, configured to determine, according to the path loss value, a distance between each smallcall base station and the interference.
The sum of the interference wireless transmission power, the interference antenna gain and the path loss value is the signal strength of the wireless signal, the parameter determining unit 41 can determine three parameters, namely the interference wireless transmission power, the interference antenna gain and the interference signal strength, according to the wireless signal received by the SmallCell base station, and after the three parameters are known, the path loss value can be obtained through the path loss determining unit 42, and the path loss value is different due to the distance, so the distance determining unit 43 can determine the distance between the SmallCell base station and the interference according to the path loss value.
In one embodiment, the parameter determining unit 41 is configured to determine the interfering wireless transmission power, the antenna gain and the signal strength of the wireless signal according to the wireless signal, respectively, and includes:
detecting the signal strength of interference according to the wireless signal;
demodulating the wireless transmitting power of the interference and the identity of the interference from the wireless signal;
and determining the antenna gain of the interference according to the identity of the interference.
After the SmallCell base station receives the wireless signal interfering with the transmission, the parameter determination unit 41 may detect the signal strength of the interference. The parameter determining unit 41 demodulates the wireless signal received by the SmallCell base station, and may further obtain the identity in the wireless signal, so as to obtain the device parameter and the device type of the interference, obtain the wireless transmission power of the interference from the device parameter, and obtain the antenna gain of the interference from the device type of the interference, for example: if the type of the interference equipment is a mobile phone, a tablet computer, a SmallCell base station or the like, the antenna gain of the interference can be known to be 0 dB; if the type of the interfering device is a macro base station or the like, the antenna gain of the interference can be known to be 18 dB.
In one embodiment, a computer readable storage medium is also provided, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the SmallCell base station based wireless environment monitoring method as described above.
In one embodiment, there is also provided a computer device comprising a memory and a processor, the memory storing computer programs, wherein the processor when executing the computer programs implements the steps of the smallcall cell base station based wireless environment monitoring method as described above.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (14)
1. A SmallCell base station-based wireless environment monitoring method is characterized by comprising the following steps:
adjusting the coverage area of SmallCell base stations installed in the wireless environment monitoring area and/or the number of the SmallCell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area;
detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station;
and making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
2. The method according to claim 1, wherein the adjusting the coverage area of the SmallCell base stations installed in the wireless environment monitoring area and/or the number of SmallCell base stations installed in the wireless environment monitoring area according to the wireless environment monitoring area comprises:
according to the range of a wireless environment monitoring area and the antenna coverage performance of the SmallCell base station, adjusting one or more of the inclination angle, the azimuth angle and the coverage power of the antenna to enable the coverage area of the SmallCell base station to cover the wireless environment monitoring area;
when the SmallCell base stations are multiple, the coverage areas of the SmallCell base stations are not overlapped with each other;
when the coverage area of the SmallCell base stations cannot cover the wireless environment monitoring area, the number of the SmallCell base stations is increased, so that the sum of the coverage areas of all the SmallCell base stations covers the wireless environment monitoring area, and the coverage area of each SmallCell base station is adjusted, so that the coverage areas of the SmallCell base stations are not overlapped.
3. The wireless environment monitoring method according to claim 2, wherein there are at least three SmallCell base stations.
4. The method for monitoring the wireless environment according to claim 3, wherein the detecting, by the SmallCell base station, the change of the background noise value of the wireless environment monitoring area comprises:
and opening the SmallCell base stations one by one, and sequentially detecting the change of the background noise value of the wireless environment monitoring area through each SmallCell base station.
5. The method for monitoring a wireless environment according to claim 4, wherein the decision for the environment of the wireless environment monitoring area is made according to the change of the background noise value, specifically:
and analyzing and processing the change of the background noise value, and judging whether the wireless environment monitoring area is suitable for building a station and/or whether signal coverage needs to be adjusted and/or whether signal interference exists.
6. The method for monitoring wireless environment according to claim 5, wherein when it is determined that there is signal interference in the wireless environment monitoring area, the method further comprises:
respectively receiving the wireless signals sent by the interference after each SmallCell base station is started;
determining a distance between each SmallCell base station and the interference from the wireless signal.
7. The wireless environment monitoring method according to claim 6, further comprising after determining the distance between each SmallCell base station and the interference:
acquiring the positioning of the SmallCell base station;
and determining the location of the interference according to the location of the SmallCell base station and the distance between the SmallCell base station and the interference.
8. The method according to claim 5, wherein determining the distance between each SmallCell base station and the interference according to the wireless signals comprises:
respectively determining the wireless transmission power, the antenna gain and the signal strength of the interference according to the wireless signals;
determining a path loss value according to the wireless transmitting power, the antenna gain and the signal strength;
and determining the distance between each SmallCell base station and the interference respectively according to the path loss value.
9. The method of claim 8, wherein the determining the wireless transmission power, the antenna gain and the signal strength of the interference according to the wireless signals respectively comprises:
detecting a signal strength of the interference from a wireless signal;
demodulating the wireless transmitting power of the interference and the identity of the interference from the wireless signal;
and determining the antenna gain of the interference according to the identity of the interference.
10. The method according to claim 8, wherein when the wireless signal propagates in line-of-sight manner, the distance between each SmallCell base station and the interference is determined according to the path loss value, specifically according to the following formula:
when the wireless signal is transmitted in a non-line-of-sight manner, determining the distance between each SmallCell base station and the interference according to the path loss value, specifically according to the following formula:
wherein d is a distance between the SmallCell base station and the interference, L is the path loss value, f is the frequency of the wireless signal, N is a distance loss coefficient, Lf (N) is floor penetration loss, N is the number of floors separated between the SmallCell base station and the interference, and X is a slow fading margin.
11. The method for monitoring the wireless environment according to claim 1, wherein the detecting, by the SmallCell base station, the change of the background noise value of the wireless environment monitoring area comprises:
presetting monitoring parameters, wherein the monitoring parameters comprise a detection period and/or a detection frequency band;
and detecting the change of the background noise value of the wireless environment monitoring area through the SmallCell base station according to the monitoring parameters.
12. A SmallCell base station-based wireless environment monitoring device, comprising:
the system comprises a background noise acquisition module, a background noise acquisition module and a background noise acquisition module, wherein the background noise acquisition module is used for detecting background noise value change of a wireless environment monitoring area through the SmallCell base station, and the SmallCell base station is installed in the wireless environment monitoring area and adjusts the coverage and/or the number according to the wireless environment monitoring area;
and the environment decision module is used for making a decision on the environment of the wireless environment monitoring area according to the change of the background noise value.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the wireless environment monitoring method according to any one of claims 1 to 11.
14. A computer arrangement comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program performs the steps of the wireless environment monitoring method according to any of claims 1 to 11.
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