Terminal signal quality evaluation method and device and interference processing method
阅读说明：本技术 终端信号质量评估方法、装置及干扰处理方法 (Terminal signal quality evaluation method and device and interference processing method ) 是由 杨洋 叶松涛 班先亮 张颖哲 于 2020-04-17 设计创作，主要内容包括：本发明提供了一种终端信号质量评估方法、装置及干扰处理方法,首先判断终端信号是否满足预设条件,在终端信号质量未满足预设条件时,则判断当前信号的质量好终端所处场强是否小于预定阈值；若小于,则判定为当前信号弱,若不小于,则判定为信号受干扰。因此,本发明的技术方案可以准确的判断终端的通信质量好坏,还可以根据终端信号判断出如果通信质量较坏的原因。(The invention provides a method and a device for evaluating the quality of a terminal signal and an interference processing method, which comprises the steps of firstly judging whether the terminal signal meets a preset condition, and judging whether the field intensity of a terminal with good quality of the current signal is smaller than a preset threshold value when the quality of the terminal signal does not meet the preset condition; if the current signal is less than the preset threshold value, the current signal is judged to be weak, and if the current signal is not less than the preset threshold value, the signal is judged to be interfered. Therefore, the technical scheme of the invention can accurately judge the communication quality of the terminal and can also judge the reason of bad communication quality according to the terminal signal.)
1. A method for evaluating signal quality of a terminal, comprising:
judging whether the signal quality of the terminal meets a preset condition or not;
if the signal quality of the terminal does not meet the preset condition, judging whether the field intensity of the current terminal is smaller than a preset threshold value;
if the field intensity of the current terminal is smaller than the preset threshold value, determining that the terminal signal is weak;
and if the field intensity of the current terminal is not smaller than the preset threshold value, confirming that the terminal signal is interfered.
2. The method of claim 1, wherein the determining whether the terminal signal quality satisfies a predetermined condition comprises:
when the current working state of the terminal is a standby state, detecting a signal received by the terminal and judging the quality of the signal;
or, when the working state of the terminal is a signal receiving state, judging whether a service exists in an adjacent time slot of the terminal for receiving the signal, if the service exists in the adjacent time slot of the terminal, analyzing the signal received by the terminal, and judging the signal quality, or if the service does not exist in the adjacent time slot of the terminal, analyzing and/or detecting the signal received by the terminal, and judging the signal quality;
or, when the working state of the terminal is a signal transmitting state, detecting the adjacent time slot of the terminal receiving signal, and judging the signal quality.
3. The method according to claim 2, wherein the detecting the signal received by the terminal when the current operating state of the terminal is a standby state, and the determining the signal quality comprises:
when the current working state of the terminal is a standby state, the terminal detects the signaling in a first signal sent to the terminal by the signal source at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates a first error rate;
judging whether the first error rate is greater than a preset first threshold value or not;
if the first error rate is greater than the first threshold value, confirming that the terminal signal does not meet a preset condition;
otherwise, confirming that the signal quality of the terminal meets the preset condition.
4. The method according to claim 2, wherein the detecting the signal received by the terminal when the current operating state of the terminal is a standby state, and the determining the signal quality comprises:
the terminal sends a signal evaluation signaling to the signal source;
judging whether the signal source feeds back a response signal to the signal evaluation signaling;
if the signal source does not feed back the response signal to the signal evaluation signaling, determining that the signal quality of the terminal does not meet a preset condition;
otherwise, the terminal detects the response signal and judges the signal quality.
5. The method of claim 4, wherein the terminal detects the response signal and determining the signal quality comprises:
the terminal detects the response signal, extracts information in the response signal, compares the information in the response signal with the estimated response signal information, and calculates a second error rate;
judging whether the second error rate is smaller than a preset second threshold value or not;
if the second error rate is smaller than the second threshold value, confirming that the signal quality of the terminal meets a preset condition;
otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
6. The method according to claim 2, wherein the analyzing the signal received by the terminal when there is a service in the adjacent timeslot of the terminal, and the determining the signal quality comprises:
the terminal carries out framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames;
judging whether the number of the invalid frames is smaller than a preset third threshold value or not;
if the number of the invalid frames is smaller than the third threshold, confirming that the signal quality of the terminal meets a preset condition;
otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
7. The method according to claim 2, wherein the analyzing and/or detecting the signal received by the terminal if the adjacent timeslot of the terminal has no service, and the determining the signal quality comprises:
the terminal carries out framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames;
judging whether the number of the invalid frames is larger than a preset fourth threshold value or not;
and if the number of the invalid frames is larger than the fourth threshold, confirming that the signal quality of the terminal does not meet a preset condition.
8. The method according to claim 2, wherein the analyzing and/or detecting the signal received by the terminal if the adjacent timeslot of the terminal has no service, and the determining the signal quality further comprises:
the terminal detects the signaling in the received first signal at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates a third error rate;
judging whether the third error rate is smaller than a preset fifth threshold value or not;
if the third error rate is smaller than the fifth threshold, confirming that the signal quality of the terminal meets a preset condition;
otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
9. The method for terminal signal quality assessment according to any of claims 6-8, characterized in that said method further comprises:
the working state of the terminal is a signal receiving state but no signal is received, the terminal detects the signaling in a first signal sent to the terminal by the signal source at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates a fourth bit error rate;
judging whether the fourth bit error rate is greater than a preset sixth threshold value;
if the fourth bit error rate is greater than the sixth threshold, determining that the signal quality does not meet a preset condition;
otherwise, confirming that the signal quality of the terminal meets the preset condition.
10. The method as claimed in claim 2, wherein said detecting the adjacent time slot of the signal received by the terminal when the operating state of the terminal is a signal transmitting state, and determining the signal quality comprises:
the terminal transmits signals to the signal source and embeds signal evaluation signaling into the transmitted signals at fixed time intervals;
judging whether the adjacent time slot of the terminal receiving signal has a service or not;
if the adjacent time slot has service;
judging whether the adjacent time slot signal is embedded with a response signal or not;
if the adjacent time slot signal is embedded with a response signal, confirming that the signal quality of the terminal meets a preset condition;
otherwise, confirming that the signal quality of the terminal does not meet the preset condition;
if the adjacent time slot has no service;
judging whether the adjacent time slot signal is embedded with specific information or not;
if the adjacent time slot signal is embedded with specific information, the quality of the terminal signal is confirmed to meet a preset condition;
otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
11. A method for processing interference on a terminal signal, characterized in that the terminal signal is automatically switched to another signal source after being confirmed to be interfered, and the method is applied to the case that the terminal signal is interfered according to any one of claims 1-10.
12. An apparatus for evaluating signal quality of a terminal, comprising:
a signal receiver for acquiring the terminal signal;
the signal detector is connected with the signal receiver, acquires the terminal signal through the signal receiver, and analyzes and detects the terminal signal;
the processor is connected with the signal detector, acquires the analysis and detection result of the signal detector on the terminal signal and judges whether the quality of the terminal signal meets the preset condition;
if the signal quality of the terminal does not meet the preset condition, the processor judges whether the field intensity of the current terminal is smaller than the preset threshold value again;
if the field intensity of the current terminal is smaller than the preset threshold value, the processor confirms and feeds back that the terminal signal is weak;
and if the field intensity of the current terminal is not smaller than the preset threshold value, the processor confirms and feeds back the interference on the terminal signal.
13. The apparatus of claim 12, wherein the signal detector performs analytic detection on the terminal signal, and comprises:
when the current working state of the terminal is a standby state, the signal detector detects a signal received by the terminal and sends a detection result to the processor so as to judge the signal quality;
or, when the working state of the terminal is a signal receiving state, the signal detector judges whether a service exists in an adjacent time slot of the terminal for receiving the signal, if the adjacent time slot of the terminal has the service, the signal received by the terminal is analyzed, and an analysis result is sent to the processor to judge the signal quality, or if the adjacent time slot of the terminal has no service, the signal detector analyzes and/or detects the signal received by the terminal, and sends the analysis and/or detection result to the processor to judge the signal quality;
or, when the working state of the terminal is a signal transmitting state, the signal detector detects the adjacent time slot of the signal received by the terminal, and sends the detection result to the processor to judge the signal quality.
Technical Field
The invention relates to the technical field of wireless communication, in particular to a terminal signal quality evaluation method and a terminal signal interference processing method.
Background
Since the position of the terminal in the mobile communication system is not fixed, the signal quality and the interference may be different at different positions, and the cell switching, the channel switching, and other processing needs to be performed in time according to the signal quality to ensure the communication quality. At present, in background scanning processes of enhanced virtual clusters and large cluster modes, a terminal mainly judges the quality of a signal according to a field intensity value so as to judge whether to perform background scanning switching. And when the multimode terminal switches the broadband and narrowband modes, the field intensity is also used as the only judgment standard for judging whether the modes are switched. The terminal judges the magnitude of the field intensity, and the purpose is to judge the quality of the signal, but the existing scheme is to judge whether the signal quality is good or not by judging the magnitude of the field intensity, and the reason why the signal quality is not good cannot be effectively judged.
Disclosure of Invention
The technical problem solved by the application is how to effectively judge the signal quality and find out the reason of poor signal quality.
In order to solve the above problem, an embodiment of the present invention provides a method for evaluating signal quality of a terminal, including: judging whether the signal quality of the terminal meets a preset condition or not; if the signal quality of the terminal does not meet the preset condition, judging whether the field intensity of the current terminal is smaller than a preset threshold value; if the field intensity of the current terminal is smaller than a preset threshold value, confirming that the terminal signal is weak; and if the field intensity of the current terminal is not less than the preset threshold value, confirming that the terminal signal is interfered.
Further, the judging whether the signal quality of the terminal meets the preset condition includes: when the current working state of the terminal is a standby state, detecting a signal received by the terminal and judging the quality of the signal; or, when the working state of the terminal is the signal receiving state, judging whether the adjacent time slot of the terminal receiving signal has service, if the adjacent time slot of the terminal has service, analyzing the signal received by the terminal, and judging the signal quality, or if the adjacent time slot of the terminal has no service, analyzing and/or detecting the signal received by the terminal, and judging the signal quality; or, when the working state of the terminal is the signal transmitting state, detecting the adjacent time slot of the signal received by the terminal, and judging the signal quality.
Further, when the current operating state of the terminal is the standby state, detecting the signal received by the terminal, and determining the signal quality includes: when the current working state of the terminal is a standby state, the terminal detects a signaling in a first signal sent to the terminal by a signal source at regular intervals, compares specific information contained in the signaling with a predicted value of the specific information, and calculates a first error rate; judging whether the first error rate is greater than a preset first threshold value or not; if the first error rate is greater than a first threshold value, confirming that the terminal signal does not meet a preset condition; otherwise, confirming that the signal quality of the terminal meets the preset condition.
Further, when the current operating state of the terminal is the standby state, detecting the signal received by the terminal, and determining the signal quality includes: the terminal sends a signal evaluation signaling to the signal source; judging whether a signal source feeds back a response signal to the signal evaluation signaling or not; if the signal source does not feed back a response signal to the signal evaluation signaling, determining that the signal quality of the terminal does not meet the preset condition; otherwise, the terminal detects the response signal and judges the signal quality.
Further, the terminal detects the response signal, and the judging the signal quality includes: the terminal detects the response signal, extracts information in the response signal, compares the information in the response signal with the estimated response signal information, and calculates a second error rate; judging whether the second error rate is smaller than a preset second threshold value or not; if the second error rate is smaller than a second threshold value, the quality of the terminal signal is confirmed to meet a preset condition; otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
Further, when there is a service in the adjacent time slot of the terminal, analyzing the signal received by the terminal, and determining the signal quality includes: the terminal carries out framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames; judging whether the number of the invalid frames is smaller than a preset third threshold value or not; if the number of the invalid frames is smaller than a third threshold value, confirming that the signal quality of the terminal meets a preset condition; otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
Further, if the adjacent time slot of the terminal has no service, analyzing and/or detecting the signal received by the terminal, and determining the signal quality includes: the terminal carries out framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames; judging whether the number of the invalid frames is larger than a preset fourth threshold value or not; and if the number of the invalid frames is larger than the fourth threshold, confirming that the signal quality of the terminal does not meet the preset condition.
Further, if the adjacent time slot of the terminal has no service, analyzing and/or detecting the signal received by the terminal, and determining the signal quality further includes: the terminal detects the signaling in the received first signal at fixed time intervals, compares the specific information contained in the signaling with the estimated value of the specific information and calculates a third error rate; judging whether the third error rate is smaller than a preset fifth threshold value or not; if the third error rate is smaller than a fifth threshold value, confirming that the signal quality of the terminal meets a preset condition; otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
Further, the method further comprises: the working state of the terminal is a signal receiving state but no signal is received, the terminal detects a signaling in a first signal sent to the terminal by a signal source at regular intervals, specific information contained in the signaling is compared with a predicted value of the specific information, and a fourth bit error rate is calculated; judging whether the fourth bit error rate is greater than a preset sixth threshold value; if the fourth bit error rate is greater than a sixth threshold, confirming that the signal quality does not meet a preset condition; otherwise, confirming that the signal quality of the terminal meets the preset condition.
Further, when the working state of the terminal is a signal transmitting state, detecting an adjacent time slot of a signal received by the terminal, and judging the signal quality includes: a terminal transmits a signal to a signal source and embeds a signal evaluation signaling in the transmitted signal at fixed time intervals; judging whether the adjacent time slot of the terminal receiving signal has a service or not; if the adjacent time slot has the service; judging whether the adjacent time slot signal is embedded with a response signal or not; if the adjacent time slot signal is embedded with a response signal, the quality of the terminal signal is confirmed to meet a preset condition; otherwise, confirming that the signal quality of the terminal does not meet the preset condition; if the adjacent time slot has no service; judging whether the adjacent time slot signal is embedded with specific information or not; if the adjacent time slot signal is embedded with specific information, the quality of the terminal signal is confirmed to meet a preset condition; otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
The method is applied to the situation that the terminal signals are interfered.
There is also provided a terminal signal quality evaluation apparatus, including: the signal receiver is used for acquiring a terminal signal; the signal detector is connected with the signal receiver, acquires a terminal signal through the signal receiver, and analyzes and detects the terminal signal; the processor is connected with the signal detector, acquires the analysis and detection result of the signal detector on the terminal signal and judges whether the quality of the terminal signal meets the preset condition; if the signal quality of the terminal does not meet the preset condition, the processor judges whether the field intensity of the current terminal is smaller than the preset threshold value again; if the field intensity of the current terminal is smaller than a preset threshold value, the processor confirms and feeds back that the terminal signal is weak; and if the field intensity of the current terminal is not less than the preset threshold value, the processor confirms and feeds back the interference on the terminal signal.
Further, the signal detector analyzing and detecting the terminal signal includes: when the current working state of the terminal is a standby state, the signal detector detects a signal received by the terminal and sends a detection result to the processor to judge the signal quality; or, when the working state of the terminal is a signal receiving state, the signal detector judges whether the adjacent time slot of the terminal receiving signal has service, if the adjacent time slot of the terminal has service, the signal received by the terminal is analyzed, and the analysis result is sent to the processor to judge the signal quality, or if the adjacent time slot of the terminal has no service, the signal detector analyzes and/or detects the signal received by the terminal, and the analysis and/or detection result is sent to the processor to judge the signal quality; or, when the working state of the terminal is the signal transmitting state, the signal detector detects the adjacent time slot of the signal received by the terminal and sends the detection result to the processor to judge the signal quality.
The terminal signal quality evaluation method provided by the invention comprises the steps of firstly judging whether the signal quality of a terminal meets a preset condition, if the signal quality of the terminal meets the preset condition, determining that the signal quality of the terminal is good, and if the signal quality of the terminal does not meet the preset condition, continuously judging whether the field intensity of the terminal with good quality of the current signal is smaller than a preset threshold value; if the current signal is less than the preset threshold value, the current signal is judged to be weak, and if the current signal is not less than the preset threshold value, the signal is judged to be interfered. Therefore, the technical scheme of the invention can not only effectively judge the quality of the signal, but also judge the reason of poor terminal signal.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for evaluating signal quality of a terminal according to an embodiment of the present invention;
FIG. 2 is a schematic sub-flow chart of step S1 in FIG. 1;
FIG. 3 is a schematic sub-flow chart of one embodiment of step S12 in FIG. 2;
FIG. 4 is a schematic sub-flow chart of another embodiment of step S12 in FIG. 2;
FIG. 5 is a schematic sub-flow chart of step S15 in FIG. 2;
FIG. 6 is a sub-flowchart of one embodiment of step S16 in FIG. 2;
FIG. 7 is a schematic sub-flow chart of another embodiment of step S16 in FIG. 2;
FIG. 8 is a schematic sub-flow chart of step S18 in FIG. 2;
fig. 9 is a block diagram of the terminal signal quality evaluation apparatus of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.
The terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Please refer to fig. 1, which is a flowchart illustrating a method for evaluating signal quality of a terminal according to an embodiment of the present invention.
And step S1, judging whether the terminal signal quality meets the preset condition.
In this embodiment, the terminal may be a portable electronic device carried by a person. Such as portable electronic devices like mobile phones, palm computers, tablet computers, smart bands, etc. The terminal is moving within the coverage of a plurality of signal sources. The signal source of the signal received by the mobile terminal of the terminal is constantly changing. In this embodiment, the quality of the signal received by the terminal is determined, and whether the signal of the terminal meets a preset condition is determined. The method for the terminal to judge whether the signal quality meets the preset condition may be that the terminal analyzes the signaling in the first signal sent by the signal source through a decoder, and judges the quality of the downlink signaling. Or the terminal actively sends a signal evaluation signaling to the signal source, the signal source sends a response signal terminal to the terminal to detect the response signal, and whether the signal meets the preset condition is judged. If the predetermined condition is satisfied, step S2 is executed, and if the terminal signal quality satisfies the predetermined condition, it is determined that the terminal signal quality is good. In other embodiments, if the terminal signal quality satisfies the predetermined condition, the terminal signal quality is determined to be good, which is not described herein again.
Step S3, if the signal quality of the terminal does not satisfy the preset condition, determining whether the field strength of the current terminal is smaller than a predetermined threshold.
If it is determined in step S1 that the terminal signal quality does not satisfy the predetermined condition. Therefore, the signal quality of the terminal is judged, and because the signal quality of the terminal is also influenced by factors such as the field intensity, whether the field intensity of the current terminal is smaller than the preset threshold value needs to be judged. In this embodiment, if it is determined in step S1 that the signal quality of the terminal does not satisfy the predetermined condition, then it is determined whether the field strength of the current terminal is smaller than the predetermined threshold. In other embodiments, the determination may be made whether the field strength of the current terminal is greater than a predetermined threshold. And are not limited herein.
And step S3, if the field intensity of the current terminal is smaller than the preset threshold value, the terminal signal is confirmed to be weak.
The current field intensity of the terminal is detected, the current field intensity of the terminal is obtained, and the current field intensity of the terminal is compared with a preset threshold value. And if the field intensity of the current terminal is smaller than the preset threshold value, confirming that the terminal signal is weak. For example, the current field strength of the detected terminal is Adbm, the preset threshold value is Bdbm, and if Adbm is smaller than Bdbm, the terminal signal is confirmed to be weak.
And step S4, if the field intensity of the current terminal is not less than the preset threshold value, confirming that the terminal signal is interfered.
The current field intensity of the terminal is detected, the current field intensity of the terminal is obtained, and the current field intensity of the terminal is compared with a preset threshold value. And if the field intensity of the current terminal is not less than the preset threshold value, confirming that the terminal signal is interfered. For example, the current field strength of the detected terminal is Adbm, the preset threshold value is Bdbm, and if Adbm is not less than Bdbm, that is, Adbm is greater than or equal to Bdbm, it is determined that the terminal signal is interfered.
In an embodiment, if it is determined whether the signal quality of the terminal is good, further, a determination needs to be made regarding the operating state of the terminal. The operating state of the terminal is divided into a standby state, a received signal state, and a transmitted signal state. There is also a state in which the terminal is in a signal receiving state but does not receive a signal when the signal is received. Please refer to fig. 2, which is a sub-flowchart of step S1 in fig. 1.
In step S11, it is determined whether the current operating state of the terminal is in a standby state.
The terminal is in the signal coverage range of the signal source, the quality of the received signal or the transmitted signal is different under different working states of the terminal, and the corresponding standards for whether the signal quality required by the terminal in different states is good or not are different. Therefore, the working state of the terminal needs to be judged before judging whether the signal quality of the terminal meets the preset condition.
In step S12, when the current operating state of the terminal is in the standby state, the signal received by the terminal is detected, and the signal quality is determined.
The operating state of the terminal is divided into a standby state, a received signal state, and a transmitted signal state. If the working state of the terminal is the standby state, the signal received by the terminal is detected, and the signal quality is judged. In this embodiment, the terminal receives a first signal sent by a signal source, where the first signal contains signaling of specific information. The terminal receives the signaling containing the specific information, detects the signaling and judges the signal quality by combining the field intensity of the current terminal. The terminal compares the specific information contained in the signaling with the estimated value of the specific information, calculates a first error rate, compares the first error rate with a preset first threshold value, and judges whether the first error rate is greater than the preset first threshold value. And if the first error rate is greater than a preset first threshold value, determining that the signal quality of the terminal does not meet a preset condition, otherwise, determining that the signal quality of the terminal meets the preset condition.
In other embodiments, the terminal may actively send a signal evaluation signaling to the signal source, so that the terminal detects a response signal fed back by the signal source and judges the signal quality by combining the field strength of the current terminal.
And step S13, otherwise, judging whether the working state of the terminal is the signal receiving state.
The working state of the terminal can be judged by adopting a signal receiver, and the signal receiver can receive the signal to indicate that the working state of the terminal is a signal receiving state.
Step S14, if the working state of the terminal is the signal receiving state, determine whether there is a service in the adjacent time slot of the signal received by the terminal.
The operating state of the terminal is divided into a standby state, a received signal state, and a transmitted signal state. And if the working state of the terminal is a signal receiving state and the voice signal or other communication signals received by the terminal are clear, determining that the signal quality of the terminal meets the preset condition. If the voice signal or other communication signal received by the terminal is not clear, whether a service exists in the adjacent time slot of the signal received by the terminal or not needs to be judged in combination with the field intensity of the current terminal; and then the signal quality is judged.
And step S15, if the adjacent time slot of the terminal has service, analyzing the signal received by the terminal and judging the signal quality.
If the voice signal or other communication signal received by the terminal is unclear, that is, the voice audio is intermittent and discontinuous, and the signal is broken, in this embodiment, the signal detector may be used to detect, and the signal breakage or discontinuity indicates that the communication signal is unclear. A determination needs to be made as to the signal quality of the terminal. Firstly, if the adjacent time slot of the terminal has a service, the terminal performs framing processing on the received signal, divides the received signal into a plurality of signal frames with the same time interval, then the terminal analyzes the plurality of signal frames through a decoder, and judges the number of invalid signal frames in the plurality of signal frames to be combined with the field intensity of the current terminal. Thereby judging the signal quality. And if the number of the invalid frames is smaller than a third threshold value, confirming that the signal quality of the terminal meets the preset condition. Otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
And step S16, if the adjacent time slot of the terminal has no service, analyzing and/or detecting the signal received by the terminal, and judging the signal quality.
If the adjacent time slot of the terminal has no service, the terminal performs framing processing on the received signal, divides the received signal into a plurality of signal frames with the same time interval, and then the terminal analyzes the plurality of signal frames through a decoder and judges the signal quality by combining the field intensity of the current terminal. And if the number of the invalid frames is larger than the fourth threshold, confirming that the signal quality of the terminal does not meet the preset condition.
And the terminal detects the signaling in the received first signal at regular intervals, wherein the first signal contains the signaling of the specific information. The terminal receives the signaling containing the specific information, detects the signaling and judges the signal quality by combining the field intensity of the current terminal. And the terminal compares the specific information contained in the signaling with the estimated value of the specific information, calculates a second error rate, compares the second error rate with a preset fifth threshold, and if the second error rate is smaller than the fifth threshold, confirms that the signal quality of the terminal meets the preset condition. Otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
And step S17, otherwise, judging whether the working state of the terminal is the signal transmitting state.
And step S18, if the working state of the terminal is the signal transmitting state, detecting the adjacent time slot of the signal received by the terminal, and judging the signal quality.
If the working state of the terminal is a signal transmitting state, the terminal transmits a signal to a signal source, signal evaluation signaling is embedded into the signal transmitting state at fixed time intervals, whether a service exists in an adjacent time slot of the signal transmitted by the signal source and received by the terminal is detected, and the signal of the adjacent time slot is analyzed, so that the signal quality is judged. And if the adjacent time slot has the service and the response signal embedded in the adjacent time slot signal is analyzed, determining that the signal quality of the terminal meets the preset condition. Otherwise, confirming that the signal quality of the terminal does not meet the preset condition. And if the adjacent time slot has no service and specific information embedded in the adjacent time slot signal is analyzed, the quality of the terminal signal is confirmed to meet the preset condition. Otherwise, confirming that the signal quality of the terminal does not meet the preset condition.
In an embodiment, if the current operating state of the terminal is the standby state, it is determined whether the signal quality of the terminal is good, and if the signal quality of the terminal does not satisfy the predetermined condition, the signal quality of the terminal is further determined. Please refer to fig. 3, which is a sub-flowchart of the step S12 in fig. 2 according to an embodiment.
And step S121, when the current working state of the terminal is a standby state, the terminal detects the signaling in the first signal sent to the terminal by the signal source at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates the first error rate.
When the terminal is in the range of the signal source, the signal source will send the first signal to the terminal continuously, and the first signal contains the signaling of the specific information. The terminal detects the signaling in the first signal sent to the terminal by the signal source at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates the first error rate. In this embodiment, the first error rate is the total number of the specific information compared with the number of errors of the specific information contained in the signaling in the first signal and the preset value of the specific information, and the error rates in other embodiments are the same as the calculation principle in this embodiment, which is not described herein again.
Step S122, determine whether the first error rate is greater than a preset first threshold.
In this embodiment, the first threshold is a maximum value of the error quantity ratio between the specific information and the preset value of the specific information when the signal quality is good, and the threshold is the same as the calculation principle in this embodiment in other embodiments, and is not described herein.
Step S123, if the first error rate is greater than the first threshold, it is determined that the signal quality of the terminal does not satisfy the preset condition.
If the first error rate is greater than the first threshold value, and it is determined that the signal quality of the terminal does not satisfy the predetermined condition, step S125 is executed.
Step S124, otherwise, it is determined that the terminal signal quality satisfies the preset condition.
Step S125, determining whether the field strength of the current terminal is smaller than a first field strength threshold.
In this embodiment, the first field strength is a field strength value when the signal quality is normal under the condition that the terminal signal quality does not satisfy the preset condition, and the field strength threshold values in other embodiments are the same as the field strength threshold value calculation method in this embodiment, which is not repeated herein.
In step S126, if the field intensity of the current terminal is smaller than the first field intensity threshold, the signal is determined to be weak. Step S127, otherwise, the confirmation signal is interfered.
Namely, the field intensity of the current terminal is greater than or equal to the first field intensity threshold value, the signal is confirmed to be interfered. And when the terminal judges that the signal in the range of the current signal source is interfered, the background of the terminal automatically switches the signal source. And is connected with a newly connected signal source, and signal quality evaluation is carried out on signals within the range of the new signal source.
In another embodiment, please refer to fig. 4, which is a sub-flowchart of another embodiment in step S12 in fig. 2.
Step S1201, the terminal sends a signal evaluation signaling to the signal source.
In the above embodiment, the detection method relies on the signal source continuously sending the first signal to the terminal, and in a special case, the terminal is in the range of the signal source, but the signal source does not send the first signal to the terminal. In this embodiment, the terminal actively sends signal evaluation signaling to the signal source. And the terminal judges the signal quality by combining whether the signal source feeds back a response signal to the terminal.
Step S1202, determining whether the signal evaluation signaling fed back by the signal source responds to the response signal.
The signal source receives the signal evaluation signaling sent by the terminal to the signal source and responds to the signaling. The response signal cannot be transmitted to the terminal when the signal quality is poor, and the response signal cannot be transmitted to the terminal when the signal quality is relatively good, but it cannot be determined that the signal quality of the terminal is good. The terminal detects the response signal.
In step S1203, if the signal source does not feed back a response signal to the signal evaluation signaling, it is determined that the signal quality of the terminal does not satisfy the preset condition.
And if the signal source does not have a feedback response signal to the signal evaluation signaling, determining that the signal quality of the terminal does not meet the preset condition. But there are other situations where the signal quality of the terminal does not meet the preset conditions. Step S1209 is performed.
Step S1204, if the signal source feeds back the response signal to the signal evaluation signaling, the terminal detects the response signal and judges the signal quality.
And step S1205, the terminal detects the response signal, extracts the information in the response signal, compares the information in the response signal with the estimated response signal information, and calculates a second error rate.
In step S1206, it is determined whether the second error rate is smaller than a preset second threshold.
Step S1207, if the second error rate is smaller than the second threshold, it is determined that the signal quality of the terminal meets the preset condition.
Step S1208, otherwise, it is determined that the terminal signal quality does not satisfy the preset condition.
If it is confirmed that the terminal signal quality does not satisfy the preset condition, step S1209 is performed.
Step S1209, determining whether the field strength of the current terminal is smaller than a predetermined second field strength threshold.
Step S12010, if the field strength of the current terminal is smaller than the second field strength threshold, determining that the signal is weak.
Step S12011, otherwise, the signal is confirmed to be interfered.
Namely, the field intensity of the current terminal is greater than or equal to the second field intensity threshold value, the signal is confirmed to be interfered. And when the terminal judges that the signal in the range of the current signal source is interfered, the background of the terminal automatically switches the signal source. And is connected with a newly connected signal source, and signal quality evaluation is carried out on signals within the range of the new signal source.
In an embodiment, if the operating state of the terminal is the signal receiving state and the adjacent timeslot has a service, the specific steps of analyzing the signal received by the terminal and determining the signal quality include the following steps, please refer to fig. 5, which is a sub-flowchart diagram of step S15 in fig. 2.
In step S151, the terminal performs framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and analyzes the plurality of signal frames by using the decoder to obtain the number of invalid frames in the plurality of signal frames.
The terminal is in a signal receiving state, and if the adjacent time slot of the current signal of the terminal has service after judgment, the terminal processes the current signal. The method comprises the steps that a terminal carries out framing processing on a received signal to obtain a plurality of signal frames with the same time interval, a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames.
In step S152, it is determined whether the number of invalid frames is less than a preset third threshold.
In step S153, if the number of the invalid frames is less than the third threshold, the signal quality of the terminal meets the preset condition.
Step S154, otherwise, it is determined that the terminal signal quality does not satisfy the preset condition.
Step S155, determining whether the field strength of the current terminal is smaller than a predetermined third field strength threshold.
In step S156, if the field strength of the current terminal is smaller than the third field strength threshold, the signal is determined to be weak.
Step S157, otherwise, the confirmation signal is interfered.
In an embodiment, if the working state of the terminal is the signal receiving state and the adjacent time slot has no service, the signal received by the terminal is analyzed, and the signal quality is determined as follows: the specific steps include the following, please refer to fig. 6, which is a sub-flowchart diagram of an embodiment of step S16 in fig. 2.
Step S161, the terminal performs framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and analyzes the plurality of signal frames by using a decoder to obtain the number of invalid frames in the plurality of signal frames;
the terminal is in a signal receiving state, and if the adjacent time slot of the current signal of the terminal has no service after judgment, the terminal processes the current signal. The terminal carries out framing processing on the received signal to obtain a plurality of signal frames with the same time interval, and a decoder is used for analyzing the plurality of signal frames to obtain the number of invalid frames in the plurality of signal frames.
Step S162, determining whether the number of invalid frames is greater than a preset fourth threshold.
In step S163, if the number of invalid frames is greater than the fourth threshold, it is determined that the signal quality of the terminal does not satisfy the predetermined condition.
And if the number of the invalid frames is greater than the fourth threshold, confirming that the signal quality of the terminal does not meet the preset condition and comparing the field intensity of the terminal with the preset field intensity threshold.
In another embodiment, if the working state of the terminal is the signal receiving state and the adjacent time slot has no service, the signal received by the terminal is detected, and the signal quality is judged: the specific steps include the following, please refer to fig. 7, which is a sub-flowchart diagram of another embodiment of step S16 in fig. 2.
And step S164, the terminal detects the signaling in the received first signal at regular intervals, compares the specific information contained in the signaling with the estimated value of the specific information, and calculates a third error rate.
Step S165, determining whether the third error rate is smaller than a preset fifth threshold.
And step S166, if the third error rate is smaller than a fifth threshold value, confirming that the signal quality of the terminal meets a preset condition.
And step S167, otherwise, confirming that the terminal signal quality does not meet the preset condition.
If the terminal signal quality does not satisfy the predetermined condition, go to step S168.
Step S168, determining whether the field strength of the current terminal is smaller than a predetermined fourth field strength threshold.
And step S169, if the field intensity of the current terminal is smaller than the fourth field intensity threshold value, determining that the signal is weak.
Step S1610, otherwise, the confirmation signal is interfered.
Namely, the field intensity of the current terminal is greater than or equal to the fourth field intensity threshold value, the signal is confirmed to be interfered. And when the terminal judges that the signal in the range of the current signal source is interfered, the background of the terminal automatically switches the signal source. And is connected with a newly connected signal source, and signal quality evaluation is carried out on signals within the range of the new signal source.
The above two embodiments describe the signal quality evaluation method when the operating state of the terminal is the received signal state and a signal has been received. The terminal is in a receive signal state but the terminal has not received a signal. In the state, the terminal detects the signaling in the first signal sent to the terminal by the signal source at regular intervals, detects the specific information contained in the first signal, compares the information with the estimated value of the specific information, and calculates the fourth bit error rate. Judging whether the fourth bit error rate is greater than a preset sixth threshold value; if the fourth bit error rate is greater than a sixth threshold, confirming that the signal quality does not meet a preset condition; otherwise, confirming that the signal quality of the terminal meets the preset condition.
Referring to the two embodiments, if the terminal evaluates that the current signal is interfered, the background of the terminal automatically switches the signal source. And is connected with a newly connected signal source, and signal quality evaluation is carried out on signals within the range of the new signal source.
In an embodiment, if the working state of the terminal is the signal transmitting state, the adjacent time slot of the signal received by the terminal is detected, and the signal quality is judged. When the terminal is in a signal transmitting state, the terminal not only sends a signal to the signal source, but also the signal source continuously sends a first signal to the terminal. The specific determination step includes the following steps, please participate in fig. 8, which is a sub-flow diagram of step S18 in fig. 2.
And step S181, the terminal transmits signals to the signal source and embeds signal evaluation signaling in the transmitted signals at fixed time intervals.
When the terminal is in a signal transmitting state, the terminal sends signals to a signal source, and in order to evaluate the quality of the current signals, the terminal embeds signal evaluation signaling in the transmitting signals at fixed time intervals. The signal evaluation signaling contains specific information therein. The signal source responds to the signal evaluation signaling. But the current terminal signal quality does not meet the preset condition. The terminal does not receive the evaluation response. The terminal needs to perform detection analysis on the adjacent time slot of the received signal. The signal quality is judged by the following specific steps.
Step S182, determining whether there is a service in the adjacent time slot of the terminal receiving signal.
Step S183, if there is a service in the adjacent time slot.
Step S184, determining whether the adjacent time slot signal embeds a response signal.
In this embodiment, the response signal may be a special character, a specific frequency or a byte, which is not limited herein.
In step S185, if the adjacent timeslot signal embeds a response signal, it is determined that the signal quality of the terminal meets the preset condition.
And step S186, otherwise, determining that the terminal signal quality does not meet the preset condition.
If the terminal signal quality is not satisfied with the predetermined condition, step S1811 is executed.
In step S187, if there is no traffic in the adjacent time slot.
Step S188, determining whether the adjacent time slot signal is embedded with the specific information.
Step S189, if the specific information is embedded in the adjacent timeslot signal, it is determined that the terminal signal quality satisfies the preset condition.
Step S1810, otherwise, it is determined that the terminal signal quality does not satisfy the preset condition.
If the terminal signal quality is not satisfied with the predetermined condition, step S1811 is executed.
Step S1811, determining whether the field strength of the current terminal is smaller than a predetermined fifth field strength threshold.
Step S1812, if the field strength of the current terminal is smaller than the fifth field strength threshold, determining that the signal is weak.
Step S1813, otherwise, the acknowledgement signal is interfered.
Referring to the two embodiments, if the terminal evaluates that the current signal is interfered, the background of the terminal automatically switches the signal source. And is connected with a newly connected signal source, and signal quality evaluation is carried out on signals within the range of the new signal source. The specific information embedded in the adjacent timeslot signal in this embodiment may be a specific byte, such as: DD7FF5D757DD, but is not limited to this byte.
The terminal signal quality evaluation method provided by the invention comprises the steps of firstly judging the signal quality of a terminal, and judging whether the field intensity of the terminal with good quality of the current signal is smaller than a preset threshold value or not when the signal quality of the terminal does not meet the preset condition; if the current signal is less than the preset threshold value, the current signal is judged to be weak, and if the current signal is not less than the preset threshold value, the signal is judged to be interfered. The technical scheme of the invention can accurately evaluate and judge the signal quality, and can judge whether the reason of poor signal quality is weak signal or interference of the signal.
In addition, the present invention also provides a terminal signal quality evaluation device, please refer to fig. 9, which is a block diagram of the terminal signal quality evaluation device of the present invention.
The terminal signal quality evaluation device of the invention comprises a
The terminal is in the signal coverage range of the signal source, the quality of the received signal or the quality of the transmitted signal are different under different working states of the terminal, and the corresponding standard for whether the signal quality required by the terminal in different states meets the preset condition is different. Firstly, the
The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the contents of the present specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.