CN111836298B

CN111836298B - Low-rate cell detection method and server

Info

Publication number: CN111836298B
Application number: CN202010661866.2A
Authority: CN
Inventors: 彭发龙; 柯小玲; 杨振东; 肖慧桥; 李召华; 李涛; 马莹; 谭永全; 刘志明; 曾樟华
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2023-02-28
Anticipated expiration: 2040-07-10
Also published as: CN111836298A

Abstract

The invention provides a low-speed cell detection method and a server, wherein the method comprises the following steps: positioning a low-speed cell in a wireless environment; determining all low-rate users in a low-rate cell in a wireless environment, determining the positions of all the low-rate users according to call record details CTR of all the low-rate users, and determining the position of a central low-rate user according to the positions of all the low-rate users; determining the type of a low-speed cell of the low-speed cell in the wireless environment according to the distance between the position of the central low-speed user and the low-speed cell in the wireless environment; and sending the low-rate cell type to a management platform. The invention increases the analysis dimension of the low-rate cell in the wireless environment by analyzing the call record files CTR of all users in the low-rate cell, and improves the accuracy of the analysis result of the low-rate cell in the wireless environment.

Description

Low-rate cell detection method and server

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a low-rate cell detection method and a server.

Background

With the large-scale construction of the LTE network, the LTE network gradually becomes a main bearer network for data services. The download speed of the LTE network directly affects the user experience, and therefore, the optimization of the low-rate cell becomes an important content for improving the quality of the LTE network.

In the existing LTE wireless network, the reason for low rate of a cell in the LTE network is determined by checking factors influencing the low rate cell. Such as checking for signal to interference plus noise ratio differences, coverage, whether overlapping coverage occurs, evaluating the modulation algorithm, or confirming that the scheduling priority is low, etc., to determine the cause of the low rate cell.

However, the current method for analyzing the reason of the low-rate cell only analyzes the factors affecting the low-rate cell individually, and cannot accurately analyze the reason of the low-rate cell caused by the influence of the wireless environment, which affects the optimization effect of the low-rate cell in the wireless environment.

Disclosure of Invention

The invention aims to provide a low-rate cell detection method and a server, which increase the analysis dimension of a low-rate cell and improve the accuracy of the analysis result of the low-rate cell in a wireless environment by analyzing a call record file CTR.

In a first aspect, the present invention provides a method for detecting a low-rate cell, including:

positioning a low-speed cell in a wireless environment;

determining all low-rate users in the low-rate cell in the wireless environment, determining the positions of all the low-rate users according to the call record details CTR of all the low-rate users, and determining the position of a central low-rate user according to the positions of all the low-rate users;

determining the low-rate cell type of the low-rate cell in the wireless environment according to the distance between the position of the central low-rate user and the low-rate cell in the wireless environment;

and sending the low-rate cell type to a management platform.

In one possible design, the determining a low rate cell type of the wireless environment low rate cell according to a distance between the location of the center low rate user and the wireless environment low rate cell includes:

and if the distance between the position of the central low-speed user and the wireless environment low-speed cell is greater than or equal to a preset distance, determining the type of the wireless environment low-speed cell as cross-zone coverage.

if the distance between the position of the central low-rate user and the low-rate cell of the wireless environment is smaller than a preset distance, acquiring cell Reference Signal Received Power (RSRP) of all low-rate users according to the CTR of all low-rate users;

if the RSRP of all the low-rate users meets a first preset condition, determining that the type of the low-rate cell in the wireless environment is weak coverage;

wherein the first preset condition comprises: the ratio of the number of the first users to the number of all the low-rate users is smaller than a first preset percentage, wherein the first users are users with RSRP larger than or equal to preset power in all the low-rate users.

In one possible design, after the obtaining, according to the CTRs of all low-rate users, cell reference signal received power, RSRP, of all low-rate users, the method further includes:

if the RSRP of all the low-rate users does not meet a first preset condition, acquiring cell Channel Quality Indication (CQI) of all the low-rate users according to CTR of all the low-rate users in the low-rate cell of the wireless environment;

if the CQI of all the low-rate users meets a second preset condition, determining that the type of the low-rate cell in the wireless environment is poor;

wherein the second preset condition includes: and the ratio of the number of the second users to the number of all the low-rate users is less than a second preset percentage, wherein the second users are users of which the CQI is greater than or equal to a preset channel quality indication value in all the low-rate users.

In one possible design, the locating the wireless environment low rate cell includes:

determining a low-rate cell according to CTR of all users in all cells, wherein the low-rate cell is a cell in which the average data transmission rate of the users in the cell is less than the preset minimum data transmission rate;

if the low-rate cell simultaneously meets a third preset condition, a fourth preset condition and a fifth preset condition, positioning the low-rate cell as a low-rate cell in a wireless environment;

wherein the third preset condition includes: the average utilization rate of PRBs (physical resource blocks) in busy hours of the low-rate cell is less than a preset utilization rate threshold value or the average downlink flow of the PRBs in busy hours of the low-rate cell is less than a preset downlink flow threshold value;

wherein the fourth preset condition includes: the connection number of the busy hour average radio resource control RRC of the low-rate cell is less than the preset connection number or the average downlink flow of the busy hour cell of the low-rate cell is less than the preset downlink flow threshold;

wherein the fifth preset condition includes: and the total broadband receiving power RTWP of the low-rate cell is smaller than a preset RTWP threshold value.

In one possible design, the preset minimum data transmission rate is 3.8Mbps.

In one possible design, the preset distance is 2 times the average inter-site distance of the low-rate cell in the wireless environment.

In one possible design, the subscriber call record details CTR are obtained through a big data analysis platform.

In a second aspect, an embodiment of the present invention provides a low-rate cell detection apparatus, including:

the positioning module is used for positioning a low-speed cell in a wireless environment;

a first determining module, configured to determine all low-rate users in the low-rate cell in the wireless environment, determine the positions of all low-rate users according to the call record details CTR of all low-rate users, and determine the position of a central low-rate user according to the positions of all low-rate users;

a second determining module, configured to determine a type of the low-rate cell in the wireless environment according to a distance between the location of the central low-rate user and the low-rate cell in the wireless environment;

and the sending module is used for sending the low-rate cell type to a management platform.

In a third aspect, an embodiment of the present invention provides a server, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the following steps when executing the computer program:

positioning a low-speed cell in a wireless environment;

determining the type of the wireless environment low-rate cell according to the distance between the position of the center low-rate user and the wireless environment low-rate cell;

and sending the low-rate cell type to a management platform.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer executable instruction is stored, and when a processor executes the computer executable instruction, the method for detecting a low rate cell according to any one of the first aspect is implemented.

According to the low-rate cell detection method and the server provided by the embodiment of the invention, the low-rate cell caused by the wireless environment problem is positioned, all low-rate users in the low-rate cell in the wireless environment are determined, the low-rate cell type of the low-rate cell in the wireless environment is determined according to all low-rate user call record details CTR, and the low-rate cell type is sent to the management platform, so that a manager can process the base station corresponding to the low-rate cell in the wireless environment according to the low-rate reason, the problem of causing the low-rate cell is pertinently solved, the transmission rate of a network is increased, and the user experience is improved. The invention increases the analysis dimension of the low-speed cell and improves the accuracy of the analysis result by analyzing the call record file CTR.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of an LTE network system according to an embodiment of the present invention;

fig. 2 is a flowchart of a low-rate cell optimization method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a sampling point of a low-rate session according to an embodiment of the present invention;

FIG. 4 is a diagram of a cellular mobile base station according to an embodiment of the present invention;

fig. 5 is a flowchart of a low-rate cell optimization method according to an embodiment of the present invention;

fig. 6 is a flow chart of a low-rate cell optimization method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a low-rate cell detection apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a server according to an embodiment of the present invention.

Detailed Description

With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.

Fig. 1 is a schematic structural diagram of an LTE network system according to an embodiment of the present invention. As shown in fig. 1, the network system includes a plurality of base stations 11, a plurality of user terminals 12, and a server 13. A cell is an area providing wireless communication services for users, and is a basic unit of a wireless network, a base station 11 is used to manage or support one or more cells, generally, one base station corresponds to one cell, that is, a cell is a coverage area with the base station as a center, and a server 13 is used to analyze the cause of low rate of the cell. When the terminal 12 is in the range of the wireless signal provided by a certain cell, it establishes a connection with the base station managing the cell, and then establishes communication with the core network, thereby implementing a wireless communication service.

The rate of the LTE network directly affects the service experience of a user in wireless communication with a terminal, and therefore, improving the access rate of a cell has a very important meaning for improving the network perception of the user. In the existing LTE wireless network, the reason for the low rate of the cell in the LTE network is determined by checking the factors influencing the low rate cell. For example, the signal-to-interference-plus-noise ratio difference, the coverage area of the cell, whether overlapping coverage occurs or not, the reason of the low-rate cell is judged by evaluating a modulation algorithm or confirming that the scheduling priority is low, and corresponding measures are taken to optimize the low-rate cell.

In order to avoid the technical problem, the invention improves the low-rate cell optimization method based on the scene. As shown in fig. 1, in the current network architecture, a server 13 for analyzing the cause of the cell low rate is additionally provided, the server 13 locates the low rate cell caused by the wireless environment problem by obtaining the busy hour network parameters of the cell after excluding the cell low rate caused by high interference and high load, determines all low rate users in the low rate cell in the wireless environment, and determines the type of the low rate cell in the wireless environment according to the call record details CTR of all the low rate users. And the type of the low-rate cell is sent to a management platform, so that a manager can process the base station corresponding to the low-rate cell in the wireless environment according to the low-rate reason, the problem of the low-rate cell is solved in a targeted manner, the transmission rate of a network is improved, and the user experience is improved.

Fig. 2 is a flowchart of a low-rate cell optimization method according to an embodiment of the present invention. The execution subject of the method of this embodiment may be the server in fig. 1, as shown in fig. 2, the low-rate cell optimization method includes the following steps:

s201: and positioning the low-speed cell in the wireless environment.

In the embodiment of the present invention, the reasons for the low rate cell mainly include a high load low rate cell, a high interference low rate cell, and a low rate cell due to a wireless environment. Therefore, when the reason for excluding the low-rate cell is high load or high interference, the reason for the current low-rate cell can be determined to be influenced by the radio environment.

In the method for evaluating network performance, the average rate of the uplink and downlink cells is usually used as an evaluation index of the network rate, and the average rate of the uplink and downlink cells can reflect the data transmission performance status of the cells from the whole. The average rate of the uplink and downlink cells is related to the capacity capability of the cell, the signal quality in the coverage area of the cell, the number of users in the cell and the type of service made by the users. All low-rate cells can be quickly positioned by setting a low-rate cell screening threshold. Currently, the data transmission rate of a low-rate cell directly affects the data service in the wireless network communication service, such as watching video by using traffic. The general correspondence between video definition, resolution and code rate is shown in table 1.

TABLE 1

Definition of	Resolution ratio	Typical code rate Mbps
			8K	7680*4320	-
4K	3840*2160	-
			2K	2560*1440	-
1080p	1920*1080	3.8
			720p	1280*720	2.6
480p	854*480	1.2
			360p	640*360	0.75

A typical code rate corresponding to the definition of the high definition video 1080P is 3.8Mbps, and thus, the screening threshold of the low-rate cell can be set to be 3.8Mbps. And when the downlink average transmission rate of the cell is lower than 3.8Mbps, positioning the current cell as a low-rate cell. All low-rate cells can be quickly positioned by setting a low-rate cell screening threshold, and the low-rate cells in the wireless environment can be positioned by screening all high-load low-rate cells and high-interference low-rate cells.

S202: determining all low-rate users in a low-rate cell in a wireless environment, determining the positions of all the low-rate users according to call record details CTR of all the low-rate users, and determining the position of a central low-rate user according to the positions of all the low-rate users.

In the embodiment of the invention, by setting the low-rate users and the screening threshold of the low-rate conversation to be 3.8Mbps, when the downlink average transmission rate of the users is lower than 3.8Mbps, the users are determined to be the low-rate users; when the conversation rate of the user is lower than 3.8Mbps, the conversation of the user is determined to be a low-rate conversation, so that all low-rate users in the coverage area of the cell can be determined, and the reason of the low rate of the cell can be determined by analyzing the network data parameters of all the low-rate users and all the low-rate conversations.

Specifically, a low-rate session of a low-rate user is obtained, wherein the data transmission rate of the low-rate session is lower than 3.8Mbps. And obtaining call record detail lists (Cell Traffic Recording, abbreviated as CTR) of all low-rate users through a big data analysis platform to determine the positions of all low-rate users. The CTR includes a complete signaling flow of user call, and analyzes CTR data through a big data analysis platform, so as to obtain a key field for low-rate problem cell analysis, including a home cell, call time, reference Signal Receiving Power (RSRP), neighboring cell RSRP, channel Quality Indication (CQI), temporary Mobile Subscriber Identity (TMSI), timing Advance (TA), traffic, average rate, service duration, and the like. Since a Measurement Report (MR) for each session is recorded in the CTR. The MR is one of the main parameters for evaluating the wireless environment command, and mainly includes uplink signal information and downlink signal information. The real situation of the whole network conversation quality of the original area can be reflected through the quality analysis of the uplink and downlink wireless network in the MR.

The MR downlink measurement report includes the level strength and quality of the serving cell, the transmission power of the mobile phone, the strongest signal strength of the six neighboring cells, the base station identifier, and the like. The uplink measurement report includes the uplink level strength, quality, current transmission power of the BTS, and TA value of the mobile phone. Therefore, the positioning algorithm can be used for calculating the MR data to obtain the latitude and longitude information of the positions of all the low-speed users when the low-speed conversation is carried out. Fig. 3 is a schematic diagram of a low-rate session sampling point according to an embodiment of the present invention, and as shown in fig. 3, a black dot indicates longitude and latitude information of a user corresponding to a low-rate session acquired by a CTR, for example, the number of session sampling points lower than 3.8Mbps is m, and the longitude of each sampling point is marked as x _i Latitude mark y _j The position of the central low-rate user is z _i (x, y), wherein the longitude of the center low rate user is x = (x) ₁ +x ₂ ……+x _m ) Latitude y = (y) ₁ +y ₂ ……+y _m )。

S203: and determining the low-rate cell type of the low-rate cell in the wireless environment according to the distance between the position of the central low-rate user and the low-rate cell in the wireless environment.

In the embodiment of the invention, the distance between the position of the central low-rate user and the low-rate cell in the wireless environment is the distance between the central low-rate user and a Radio Remote Unit (RRU) of a base station. The wireless coverage area of the cell is related to the RRU of the base station, and the RRU is responsible for converting the baseband optical signal into a radio frequency signal, amplifying and transmitting the radio frequency signal, and directly influencing the coverage area of the cell signal. In the network planning process, parameters such as the antenna hanging height, the direction angle, the inclination angle, the transmitting power and the like of the base station are designed by combining the distance between base station sites, so that the condition that the coverage area of the cell is too far and the area covered by other base stations is covered by a cross-zone area caused by the fact that the antenna hanging height or the pitch angle of the base station is too small is avoided, and the condition that the transmission performance of a wireless network is influenced by weak coverage, poor quality or overlapping coverage of the cell is avoided. Therefore, the distance between the position of the central low-rate user and the wireless environment low-rate cell needs to be smaller than the maximum distance in the coverage area of the cell, and when the distance between the position of the central low-rate user and the wireless environment low-rate cell does not conform to the maximum distance of the cell coverage area, the type of the low-rate cell can be determined, that is, the type of the low-rate cell can be determined according to the distance between the position of the central low-rate user and the wireless environment low-rate cell.

Specifically, if the distance between the position of the central low-rate user and the wireless environment low-rate cell is greater than or equal to the preset distance, it is determined that the type of the wireless environment low-rate cell is the handover coverage. Illustratively, the preset distance is 2 times of the average inter-station distance of the low-rate cell in the wireless environment.

According to the standing book information of all cells, the average station spacing of the current low-rate cell can be obtained, and the specific calculation method comprises the following steps: dividing 3 angle intervals in the cell coverage direction, and calculating the distance of the nearest base station according to each angle interval. For example, the 3-angle interval is divided by setting a range of plus or minus 30 degrees of the cell azimuth as a first angle interval, setting a range of minus 90 degrees to minus 30 degrees of the cell azimuth as a second angle interval, and setting a range of plus 30 degrees to plus 90 degrees of the cell azimuth as a third angle interval. Setting the weight ratio of the distance of the base station in the first angle interval to be 60%, setting the weight ratio of the distance of the base station in the second angle interval to be 20% respectively, adding the searched base station distance and the weight to each angle, and averaging to obtain the average station distance.

Fig. 4 is a schematic diagram of a cellular mobile base station according to an embodiment of the present invention. As shown in fig. 4, the cellular base station design is currently adopted, and in order to prevent the adjacent base stations from interfering with each other, the adjacent base stations select different channels, i.e. signals of different frequency ranges, to communicate with the mobile device. Therefore, 2 times of the average inter-cell distance of the low-rate cell in the current base station wireless environment is approximately the same as the maximum distance of the cell coverage, and if the distance between the center low-rate user and the low-rate cell in the wireless environment is greater than or equal to 2 times of the average inter-cell distance, it indicates that the distance between the center low-rate user and the low-rate cell in the wireless environment is greater than the coverage of the cell, and it can be determined that the type of the current low-rate cell is the cross-area coverage.

S204: and sending the low-rate cell type to a management platform.

After obtaining the low-rate type of the low-rate cell, the server sends the low-rate type representing the reason of the low-rate cell to the management platform, so that a manager can take corresponding measures to optimize the low-rate cell and improve the data transmission rate of the cell. Managers optimize the low-rate cells by reducing the antenna hanging height platform of the base station, replacing antennas with smaller gains, increasing the pitch angle of the antennas, reducing the transmitting power of the antennas or adjusting the azimuth angles of the antennas, so that the data transmission rate of the low-rate cells is improved, and the user experience is improved.

In the embodiment of the invention, the low-rate cell caused by the wireless environment problem is positioned, all low-rate users in the low-rate cell in the wireless environment are determined, the low-rate cell type of the low-rate cell in the wireless environment is determined according to the call record details CTR of all the low-rate users, and the low-rate cell type is sent to the management platform, so that a manager can process the base station corresponding to the low-rate cell in the wireless environment according to the low-rate reason, the problem of causing the low-rate cell in the wireless environment is solved in a targeted manner, the transmission rate of a network is improved, and the user experience is improved. The invention increases the analysis dimension of the low-rate cell in the wireless environment and improves the accuracy of the analysis result of the low-rate cell in the wireless environment by analyzing the call record files CTR of all users in the low-rate cell.

Fig. 5 is a flowchart of a low-rate cell optimization method according to an embodiment of the present invention. As shown in fig. 5, S203 specifically includes the following steps:

s501: and if the distance between the position of the central low-rate user and the low-rate cell in the wireless environment is smaller than the preset distance, acquiring the cell Reference Signal Received Power (RSRP) of all the low-rate users according to the CTR of all the low-rate users.

In the embodiment of the invention, if the distance between the position of the central low-rate user and the low-rate cell in the wireless environment is less than the preset distance, the reason that the current cell is not the cross-area coverage low-rate cell and the low-rate cell needs to be further examined can be eliminated.

And acquiring the cell Reference Signal Received Power (RSRP) of all the low-rate users through the CTR of all the low-rate users in the low-rate cell. Wherein RSRP is one of the key parameters that can represent the radio signal strength and the physical layer measurement requirements in an LTE network, and represents the average of the received signal power over all resource elements that carry reference signals within a certain symbol. RSRP is used to reflect the path loss strength of the current channel, for measurement of cell coverage and cell selection/reselection and handover. The value range of RSRP is generally-44 dBm to-140 dBm.

S502: and if the RSRP of all the low-rate users meets a first preset condition, determining that the type of the low-rate cell in the wireless environment is weak coverage.

In the embodiment of the invention, if the RSRP of all the low-rate users meets the first preset condition, the type of the low-rate cell in the wireless environment is determined to be weak coverage. Specifically, the first preset condition includes: the ratio of the number of the first users to the number of all the low-rate users is smaller than a first preset percentage, wherein the first users are users of which the RSRP is larger than or equal to a preset power among all the low-rate users. Illustratively, the first preset percentage may be set to 70% and the preset power set to-110 dBm. The method comprises the steps of obtaining the number of first users meeting the condition that RSRP is larger than or equal to-110 dBm in all low-rate users, and if the ratio of the number of the first users to the number of all the low-rate users is smaller than 70%, determining that the type of a low-rate cell in a wireless environment is weak coverage, namely that the reason of causing the current low-rate cell is weak coverage. The reason for the weak coverage is that the coverage area required by the base station is large, the distance between the base stations is too large, or the signal in the boundary area is weak due to the shielding of a building, which directly affects the call quality. When the type of the low-rate cell is determined to be weak coverage, a manager can optimize the low-rate cell by increasing the transmitting power of RRU equipment, adjusting the direction angle of the problem cell, reducing the pitch angle, raising an antenna hanging platform, replacing an antenna with larger gain, replacing the position of the antenna or adding a base station at a position closer to a weak coverage area and the like, so that the data transmission rate of the low-rate cell is increased, and the user experience is improved.

S503: and if the RSRP of all the low-rate users does not meet the first preset condition, acquiring cell Channel Quality Indication (CQI) of all the low-rate users according to the CTR of all the low-rate users in the low-rate cell in the wireless environment.

In the embodiment of the present invention, if RSRP of all low rate users does not satisfy the first preset condition, it may be excluded that the type of the current low rate cell is not weak coverage. Acquiring cell Channel Quality indicators (CQI for short) of all low-rate users according to the CTR of all the low-rate users in the low-rate cell in the wireless environment. Wherein the CQI represents an information indication of the channel quality, representing how good the current channel quality is. The CQI corresponds to the signal-to-noise ratio of the channel and ranges from 0 to 31. When the CQI value is 0, the channel quality is the worst; when the CQI takes the value 31, the channel quality is the best. Therefore, the channel quality in the coverage of the current low-rate cell can be obtained by analyzing the CQI.

S504: and if the CQI of all the low-rate users meets a second preset condition, determining that the type of the low-rate cell in the wireless environment is poor.

In the embodiment of the invention, if the CQI of all the low-rate users meets the second preset condition, the type of the low-rate cell in the wireless environment is determined to be poor. Specifically, the second preset condition includes: and the ratio of the number of the second users to the number of all the low-rate users is less than a second preset percentage, wherein the second users are users of which the CQI is greater than or equal to a preset channel quality indication value in all the low-rate users. For example, the second preset percentage may be set to 70% and the preset channel quality indicator value may be set to 7. And acquiring the number of second users meeting the condition that the CQI is greater than or equal to 7 in all the low-rate users, and if the ratio of the number of the second users to the number of all the low-rate users is less than 70%, determining that the type of the low-rate cell in the wireless environment is poor, namely that the cause of the current low-rate cell is poor. The reason for the poor quality may be the poor quality of the frequency point caused by equipment failure or interference inside and outside the system, which directly affects the speech quality of the voice service of the user in the cell coverage. When the type of the low-rate cell is determined to be poor, a manager can optimize the low-rate cell by reducing the transmitting power, adjusting the azimuth angle, increasing the pitch angle or controlling the signal intensity of the target cell in the overlapping coverage area, so that the data transmission rate of the low-rate cell is improved, and the user experience is improved.

In the embodiment of the invention, by analyzing CTR of all low-rate users in a low-rate cell in a wireless environment and analyzing RSRP and CQI of the low-rate cell in the wireless environment, when the RSRP and the CQI meet the limit conditions for setting weak coverage and poor quality, the type of the low-rate cell in the current wireless environment is judged to be weak coverage or poor quality. By analyzing the CTR of all low-rate users, the analysis granularity of analyzing the low-rate cells is increased, and the accuracy of analysis results is improved. In the analysis process, the priority order of analyzing the type of the low-rate cell in the wireless environment is set to be cross-area coverage, weak coverage and poor quality, so that the actual situation of the low-rate cell is better met, and the accuracy of the analysis result is improved.

Fig. 6 is a flowchart of a low-rate cell optimization method provided in the embodiment of the present invention. As shown in fig. 6, S201 specifically includes the following steps:

s601: and determining a low-rate cell according to the CTR of all users in all cells, wherein the low-rate cell is a cell in which the average data transmission rate of the users in the cell is less than the preset minimum data transmission rate.

In the method for evaluating network performance, the average rate of the uplink and downlink cells is usually used as an evaluation index of the network rate, and the average rate of the uplink and downlink cells can reflect the data transmission performance status of the cells from the whole. The average rate of the uplink and downlink cells is related to the capacity capability of the cell, the signal quality in the coverage area of the cell, the number of users in the cell and the type of service made by the users. All low-rate cells can be quickly positioned by setting a low-rate cell screening threshold. Therefore, the low-rate cell can be determined according to the CTRs of all users in all cells, wherein the low-rate cell is a cell in which the average data transmission rate of the users in the cell is less than the preset minimum data transmission rate. Specifically, the minimum data transmission rate is preset to be 3.8Mbps. Illustratively, a cell is a low rate cell when the average data transmission rate of users in the cell is less than 3.8Mbps.

S602: and if the low-rate cell simultaneously meets the third preset condition, the fourth preset condition and the fifth preset condition, positioning the low-rate cell as the low-rate cell in the wireless environment.

Currently, the reasons for the low rate cell mainly include a high load low rate cell, a high interference low rate cell, and a low rate cell due to a radio environment. The high-load low-rate cell means that when the load of the user serving cell is too large, the number of available Physical Resource Blocks (PRBs) is reduced, and the downlink data throughput of the cell is low due to insufficient resources, resulting in a low-rate cell. The high-interference low-rate cell refers to interference caused by joints such as antenna feeders, connectors and loads, and may also be system internal interference caused by quality problems of devices such as antennas, connectors and loads, or a low-rate cell caused by external interference caused by interaction between an external interference source or an external interference source and the inside of a system. The low-rate cell in the wireless environment refers to a cell low rate caused by the fact that signals covered by the cell are in cross-area coverage, weak coverage or overlapping coverage. And if the low-rate cell does not accord with the judgment conditions of high load and high interference, namely the low-rate cell accords with the judgment conditions of the low-rate cell in the wireless environment, positioning the low-rate cell as the low-rate cell in the wireless environment. And if the low-rate cell simultaneously meets the third preset condition, the fourth preset condition and the fifth preset condition, positioning the low-rate cell as the low-rate cell in the wireless environment.

In an embodiment of the present invention, the setting of the third preset condition includes: the average utilization rate of the physical resource blocks PRB in busy hour of the low-rate cell is smaller than a preset utilization rate threshold value or the average downlink flow of the low-rate cell in busy hour is smaller than a preset downlink flow threshold value.

Illustratively, the preset utilization threshold of the average utilization of the PRB is related to the capacity expansion dimension, and different capacity expansion dimensions correspond to different reference standards of the preset utilization threshold. The specific preset utilization threshold is shown in table 2.

TABLE 2

Illustratively, the preset downlink traffic threshold is related to a capacity expansion dimension, and different capacity expansion dimensions correspond to different reference standards of the preset downlink traffic threshold. The specific preset downlink traffic threshold is shown in table 3.

TABLE 3

In the embodiment of the present invention, the setting of the fourth preset condition includes: the connection number of the busy hour average radio resource control RRC of the low-rate cell is less than the preset connection number or the average downlink flow of the busy hour cell of the low-rate cell is less than the preset downlink flow threshold. Illustratively, the busy hour cell average downlink traffic in the fourth preset condition is the same as the value of the preset downlink traffic threshold in table 3.

Illustratively, the preset connection number of the average RRC is related to the expansion dimension, and different expansion dimensions correspond to different preset connection numbers. The specific number of connections is shown in table 4.

TABLE 4

In this embodiment of the present invention, the setting of the fifth preset condition includes: and the total broadband receiving power RTWP of the low-rate cell is smaller than a preset RTWP threshold value. Illustratively, the preset RTWP threshold is set to-98 dBm, and when the total wideband reception power RTWP of the idle low-rate cell is less than-98 dBm, the current low-rate cell is considered to meet the fifth preset condition.

And when the low-rate cell simultaneously meets the third preset condition, the fourth preset condition and the fifth preset condition, the current cell is excluded from being a high-load or high-interference cell, and the current low-rate cell is judged to be the low-rate cell in the wireless environment.

In the embodiment of the present invention, by setting the third preset condition, the fourth preset condition, and the fifth preset condition for determining the low-rate cell in the wireless environment, when the low-rate cell simultaneously satisfies the third preset condition, the fourth preset condition, and the fifth preset condition, it may be excluded that the current cell is not a high-load or high-interference cell, and it is determined that the current low-rate cell is the low-rate cell in the wireless environment. The purpose of positioning the low-speed cell in the wireless environment is achieved by excluding that the current cell is not a high-load or high-interference cell, so that the cause of the low-speed cell in the wireless environment can be further analyzed, and the accuracy of analyzing the type of the low-speed cell in the wireless environment is improved.

Fig. 7 is a schematic structural diagram of a low-rate cell detection apparatus according to an embodiment of the present invention. As shown in fig. 7, the low rate cell detection apparatus 70 includes: a positioning module 701, a first determining module 702, a second determining module 703 and a sending module 704; the positioning module 701 is configured to position a low-rate cell in a wireless environment; a first determining module 702, configured to determine all low-rate users in the low-rate cell in the wireless environment, determine the positions of all low-rate users according to the call record details CTR of all low-rate users, and determine the position of a central low-rate user according to the positions of all low-rate users; a second determining module 703, configured to determine a low-rate cell type of the low-rate cell in the wireless environment according to a distance between the location of the central low-rate user and the low-rate cell in the wireless environment; a sending module 704, configured to send the low-rate cell type to a management platform.

In this embodiment, the low-rate cell detection apparatus may adopt the method of the embodiment shown in fig. 2, and the technical solution and the technical effect thereof are similar, which are not described herein again.

In an embodiment of the present invention, the second determining module 703 is further specifically configured to: and if the distance between the position of the central low-speed user and the wireless environment low-speed cell is greater than or equal to a preset distance, determining the type of the wireless environment low-speed cell as cross-zone coverage.

In an embodiment of the present invention, the second determining module 703 is further specifically configured to: if the distance between the position of the central low-rate user and the low-rate cell of the wireless environment is smaller than a preset distance, acquiring cell Reference Signal Received Power (RSRP) of all low-rate users according to the CTR of all low-rate users; if the RSRP of all the low-rate users meets a first preset condition, determining that the type of the low-rate cell in the wireless environment is weak coverage; wherein the first preset condition includes: the ratio of the number of the first users to the number of all the low-rate users is smaller than a first preset percentage, wherein the first users are users with RSRP larger than or equal to preset power in all the low-rate users.

In an embodiment of the present invention, the second determining module 703 is further specifically configured to: if the RSRP of all the low-rate users does not meet a first preset condition, acquiring cell Channel Quality Indication (CQI) of all the low-rate users according to the CTR of all the low-rate users in the low-rate cell of the wireless environment; if the CQI of all the low-rate users meets a second preset condition, determining that the type of the low-rate cell in the wireless environment is poor; wherein the second preset condition includes: and the ratio of the number of the second users to the number of all the low-rate users is less than a second preset percentage, wherein the second users are users of which the CQI is greater than or equal to a preset channel quality indication value in all the low-rate users.

In an embodiment of the present invention, the positioning module 701 is further specifically configured to: determining a low-rate cell according to the CTR of all users in all cells, wherein the low-rate cell is a cell in which the average data transmission rate of the users in the cell is less than the preset minimum data transmission rate;

if the low-rate cell simultaneously meets a third preset condition, a fourth preset condition and a fifth preset condition, positioning the low-rate cell as a low-rate cell in a wireless environment; wherein the third preset condition includes: the average utilization rate of PRBs (physical resource blocks) in busy hours of the low-rate cell is less than a preset utilization rate threshold value or the average downlink traffic of the low-rate cell in busy hours is less than a preset downlink traffic threshold value; wherein the fourth preset condition includes: the connection number of the busy hour average radio resource control RRC of the low-rate cell is less than a preset connection number or the average downlink flow of the busy hour cell of the low-rate cell is less than a preset downlink flow threshold; wherein the fifth preset condition includes: and the total broadband receiving power RTWP of the low-rate cell is smaller than a preset RTWP threshold value.

The apparatus provided in this embodiment may be used to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 8 is a schematic structural diagram of a server according to an embodiment of the present invention. As shown in fig. 8, the server 80 of the present embodiment includes: a processor 801, a memory 802, and a computer program stored in the memory 802 and operable on the processor 801, the processor 801 implementing the following steps when executing the computer program: positioning a low-speed cell in a wireless environment; determining all low-rate users in the low-rate cell in the wireless environment, determining the positions of all the low-rate users according to the call record details CTR of all the low-rate users, and determining the position of a central low-rate user according to the positions of all the low-rate users; determining the low-rate cell type of the low-rate cell in the wireless environment according to the distance between the position of the central low-rate user and the low-rate cell in the wireless environment; and sending the low-rate cell type to a management platform.

In one possible design, the processor 801 when executing the computer program further performs the following steps: and if the distance between the position of the central low-speed user and the wireless environment low-speed cell is greater than or equal to a preset distance, determining the type of the wireless environment low-speed cell as cross-zone coverage.

In a possible design, when the processor 801 executes the computer program, the processor further performs the following steps of obtaining, according to CTRs of all low-rate users, cell reference signal received powers RSRP of all low-rate users if a distance between the location of the central low-rate user and the low-rate cell in the wireless environment is smaller than a preset distance; if the RSRP of all the low-rate users meets a first preset condition, determining that the type of the low-rate cell in the wireless environment is weak coverage; wherein the first preset condition comprises: the ratio of the number of the first users to the number of all the low-rate users is smaller than a first preset percentage, wherein the first users are users with RSRP larger than or equal to preset power in all the low-rate users.

In one possible design, the processor 801 when executing the computer program further performs the following steps: if the RSRP of all the low-rate users does not meet a first preset condition, acquiring cell Channel Quality Indication (CQI) of all the low-rate users according to CTR of all the low-rate users in the low-rate cell of the wireless environment; if the CQI of all the low-rate users meets a second preset condition, determining that the type of the low-rate cell in the wireless environment is poor; wherein the second preset condition includes: and the ratio of the number of the second users to the number of all the low-rate users is less than a second preset percentage, wherein the second users are users of which the CQI is greater than or equal to a preset channel quality indication value in all the low-rate users.

In one possible design, the processor 801 when executing the computer program further performs the following steps: determining a low-rate cell according to the CTR of all users in all cells, wherein the low-rate cell is a cell in which the average data transmission rate of the users in the cell is less than the preset minimum data transmission rate; if the low-rate cell simultaneously meets a third preset condition, a fourth preset condition and a fifth preset condition, positioning the low-rate cell as a low-rate cell in a wireless environment; wherein the third preset condition includes: the average utilization rate of PRBs (physical resource blocks) in busy hours of the low-rate cell is less than a preset utilization rate threshold value or the average downlink flow of the PRBs in busy hours of the low-rate cell is less than a preset downlink flow threshold value; wherein the fourth preset condition includes: the connection number of the busy hour average radio resource control RRC of the low-rate cell is less than the preset connection number or the average downlink flow of the busy hour cell of the low-rate cell is less than the preset downlink flow threshold; wherein the fifth preset condition includes: and the total broadband receiving power RTWP of the low-rate cell is less than a preset RTWP threshold value.

Reference may be made in particular to the description relating to the method embodiments described above.

In one possible design, memory 802 may be separate or integrated with processor 801.

When the memory 802 is provided separately, the server further includes a bus 803 for connecting the memory 802 and the processor 801.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer executable instruction is stored in the computer-readable storage medium, and when a processor executes the computer executable instruction, the method for detecting and positioning a low-rate cell as described above is implemented.

In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to implement the solution of the present embodiment.

In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware mode, and can also be realized in a mode of hardware and a software functional unit.

The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute some steps of the methods described in the embodiments of the present application.

It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of hardware and software modules.

The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.

The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for low rate cell detection, comprising:

positioning a low-speed cell in a wireless environment;

determining all low-rate users in the low-rate cell of the wireless environment, determining the positions of all the low-rate users according to the call record details CTR of all the low-rate users, and determining the position of a central low-rate user according to the positions of all the low-rate users;

sending the low-rate cell type to a management platform;

the determining the low-rate cell type of the wireless environment low-rate cell according to the distance between the position of the central low-rate user and the wireless environment low-rate cell comprises:

if the distance between the position of the central low-rate user and the wireless environment low-rate cell is greater than or equal to a preset distance, determining the type of the wireless environment low-rate cell as cross-zone coverage; the preset distance is 2 times of the average station spacing of the low-speed cell in the wireless environment;

the method further comprises the following steps: dividing 3 angle intervals in the coverage direction of the cell according to the ledger information of all cells, calculating the distance of the nearest base station according to each angle interval, and obtaining the average inter-station distance of the low-rate cells in the wireless environment.

2. The method according to claim 1, wherein the determining the low rate cell type of the wireless environment low rate cell according to the distance between the location of the central low rate user and the wireless environment low rate cell comprises:

if the distance between the position of the central low-rate user and the wireless environment low-rate cell is smaller than a preset distance, obtaining the cell Reference Signal Received Power (RSRP) of all the low-rate users according to the CTR of all the low-rate users;

wherein the first preset condition includes: the ratio of the number of the first users to the number of all the low-rate users is smaller than a first preset percentage, wherein the first users are users of which the RSRP is larger than or equal to a preset power among all the low-rate users.

3. The method according to claim 2, further comprising, after the obtaining cell reference signal received power, RSRP, of all low rate users according to the CTRs of all low rate users:

4. The method of claim 1, wherein locating the wireless environment low rate cell comprises:

wherein the fourth preset condition includes: the connection number of the busy hour average radio resource control RRC of the low-rate cell is less than a preset connection number or the average downlink flow of the busy hour cell of the low-rate cell is less than a preset downlink flow threshold;

5. The method of claim 4, wherein the preset minimum data transmission rate is 3.8Mbps.

6. The method according to any of claims 1 to 4, wherein the subscriber call record details CTR are obtained by a big data analytics platform.

7. A low rate cell detection apparatus, comprising:

a sending module, configured to send the low-rate cell type to a management platform;

the second determining module is specifically configured to:

a second determination module further configured to: dividing 3 angle intervals in the cell coverage direction according to the ledger information of all cells, calculating the distance of a nearest base station according to each angle interval, and acquiring the average inter-station distance of the low-rate cells in the wireless environment.

8. A server comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps when executing the computer program:

positioning a low-speed cell in a wireless environment;

determining the type of the wireless environment low-rate cell according to the distance between the position of the central low-rate user and the wireless environment low-rate cell;

sending the low-rate cell type to a management platform;

dividing 3 angle intervals in the coverage direction of the cell according to the ledger information of all cells, calculating the distance of the nearest base station according to each angle interval, and obtaining the average inter-station distance of the low-rate cells in the wireless environment.

9. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement the low rate cell detection method of any one of claims 1 to 6.