CN115549825B - Wireless link failure detection method, device, electronic device and storage medium - Google Patents
Wireless link failure detection method, device, electronic device and storage medium Download PDFInfo
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- CN115549825B CN115549825B CN202211059157.2A CN202211059157A CN115549825B CN 115549825 B CN115549825 B CN 115549825B CN 202211059157 A CN202211059157 A CN 202211059157A CN 115549825 B CN115549825 B CN 115549825B
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- 238000000034 method Methods 0.000 claims abstract description 46
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
本发明提供一种无线链路失败的检测方法、装置、电子设备及存储介质，所述方法包括：通过周期性检测终端上报的探测参考信号SRS，获取信干噪比SINR统计信息，SINR统计信息用于统计各周期的比较结果，比较结果为SRS所用的各天线端口的SINR与第一SINR阈值之间的大小比较结果；若基于SINR统计信息，确定在连续的预设数量个周期内各天线端口的SINR均小于第一SINR阈值，则确定终端发生无线链路失败。本发明通过分析SINR统计信息，若确定在连续的预设数量个周期内各天线端口的SINR均小于第一SINR阈值，则可以确定终端发生无线链路失败，能够实现快速释放掉电终端所占用的无线资源。
The present invention provides a method, device, electronic device and storage medium for detecting wireless link failure, the method comprising: obtaining signal to interference noise ratio (SINR) statistical information by periodically detecting a sounding reference signal (SRS) reported by a terminal, the SINR statistical information being used to count the comparison results of each period, the comparison result being the size comparison result between the SINR of each antenna port used by the SRS and a first SINR threshold; if based on the SINR statistical information, it is determined that the SINR of each antenna port is less than the first SINR threshold within a continuous preset number of periods, it is determined that a wireless link failure occurs in the terminal. The present invention analyzes the SINR statistical information, and if it is determined that the SINR of each antenna port is less than the first SINR threshold within a continuous preset number of periods, it can be determined that a wireless link failure occurs in the terminal, and the wireless resources occupied by the power-off terminal can be quickly released.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and apparatus for detecting a radio link failure, an electronic device, and a storage medium.
Background
The introduction of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) improves the data transmission speed, can access more terminal devices, and provides convenience for the terminal users to upload and download more quickly. Meanwhile, the service scene of the 5G-era multi-terminal becomes more complex.
A plurality of terminals are accessed to serve as uplink and downlink services, a certain terminal or a plurality of terminals may be abnormally powered down, if the powered down terminal cannot be released, wireless resources can be occupied, even the services of normal terminals can be influenced, the services cannot be normally performed, and user experience is reduced. How to quickly release the wireless resources occupied by the power-down terminal is an important problem to be solved in the industry.
Disclosure of Invention
Aiming at the problems existing in the prior art, the embodiment of the invention provides a method, a device, electronic equipment and a storage medium for detecting radio link failure.
In a first aspect, the present invention provides a method for detecting a radio link failure, including:
acquiring SINR statistical information by periodically detecting a sounding reference signal SRS reported by a terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results of SINR of each antenna port used by the SRS and a first SINR threshold;
and if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, determining that the terminal fails in the radio link.
Optionally, according to the method for detecting radio link failure provided by the present invention, the SINR statistics includes statistics values of each antenna port, an initial statistics value is the preset number, and the acquiring the SINR statistics includes:
based on the SRS reported by the terminal, the SINR of each antenna port is obtained;
Updating the statistic value of each antenna port based on the first SINR threshold and SINR of each antenna port;
updating the statistic value of each antenna port based on the first SINR threshold and the SINR of each antenna port, including:
If the SINR of the target antenna port is determined to be smaller than the first SINR threshold, the operation of subtracting 1 from the statistic value of the target antenna port is executed;
or if the SINR of the target antenna port is determined to be greater than or equal to the first SINR threshold, configuring the statistical value of the target antenna port as the preset number;
the target antenna port is any one of antenna ports used by the SRS.
Optionally, according to the method for detecting a radio link failure provided by the present invention, the determining, based on the SINR statistics information, that the SINR of each antenna port is smaller than the first SINR threshold in a consecutive preset number of periods includes:
and if the statistical value of each antenna port is equal to 0, determining that the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods.
Optionally, the method for detecting radio link failure according to the present invention further includes:
And if the terminal is determined not to have radio link failure based on the channel quality indicator CQI and/or the uplink data sent by the terminal, configuring the statistic value of each antenna port as the preset number.
Optionally, according to the method for detecting a radio link failure provided by the present invention, the determining that the terminal has not failed in the radio link based on the channel quality indicator CQI and/or uplink data sent by the terminal includes:
and if the SINR of the physical uplink control channel PUCCH is determined to be greater than or equal to a second SINR threshold value based on the CQI, determining that the terminal does not have radio link failure.
Optionally, according to the method for detecting radio link failure provided by the present invention, the obtaining SINR of each antenna port based on SRS reported by the terminal includes:
determining signal-to-noise ratios of a plurality of resource block channels corresponding to the target antenna ports based on the SRS reported by the terminal;
And determining an average value of signal-to-noise ratios of a plurality of resource block channels as the SINR of the target antenna port.
In a second aspect, the present invention further provides a device for detecting a radio link failure, including:
The acquisition module is used for acquiring SINR statistical information through a sounding reference signal SRS reported by the periodical detection terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results between SINR of each antenna port used by the SRS and a first SINR threshold;
And the determining module is used for determining that the terminal fails the radio link if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information.
In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements a method for detecting a radio link failure as described in any one of the above when executing the program.
In a fourth aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of detecting a radio link failure as described in any of the above.
In a fifth aspect, the present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a method of detecting a radio link failure as described in any of the above.
According to the method, the device, the electronic equipment and the storage medium for detecting the radio link failure, provided by the invention, through periodically detecting the SRS reported by the terminal, the comparison result of each period can be counted to obtain the SINR statistical information, the comparison result is the comparison result between the SINR of each antenna port used by the SRS and the first SINR threshold value, the terminal is powered down and can cause the radio link failure, and further if the SINR of each antenna port is determined to be smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, the terminal can be determined to have the radio link failure, and the radio resource occupied by the powered down terminal can be quickly released.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for detecting a radio link failure according to the present invention;
fig. 2 is a schematic structural diagram of a radio link failure detection device provided by the present invention;
Fig. 3 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a flow chart of a method for detecting a radio link failure according to the present invention, and as shown in fig. 1, an execution body of the method for detecting a radio link failure may be an electronic device, for example, a base station. The method comprises the following steps:
Step 101, acquiring signal-to-interference-and-noise ratio (SINR) statistical information through a Sounding Reference Signal (SRS) reported by a periodical detection terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results between SINR of each antenna port used by the SRS and a first SINR threshold;
Specifically, in order to quickly release the radio resource occupied by the power-down terminal, the comparison result of each period may be counted by periodically detecting the Sounding reference signal (Sounding REFERENCE SIGNAL, SRS) reported by the terminal to obtain the statistical information of the signal-to-interference-and-noise ratio (Signal to Interference plus Noise Ratio, SINR), and the magnitude between the SINR of each antenna port used for SRS and the first SINR threshold may be compared in each period to obtain the comparison result of each period, and further the comparison result of each period may be counted to obtain the statistical information of SINR.
It will be appreciated that a terminal power loss may result in a radio link failure (Radio Link Failture, RLF) and that by analyzing the SINR statistics it can be determined whether a radio link failure has occurred.
Step 102, if it is determined, based on the SINR statistics information, that the SINR of each antenna port is smaller than the first SINR threshold in a continuous preset number of periods, then it is determined that the radio link failure occurs in the terminal.
Specifically, a specific manner of analyzing the SINR statistics may be to determine whether the SINR of each antenna port is smaller than the first SINR threshold in a continuous preset number of periods, and if it is determined that the SINR of each antenna port is smaller than the first SINR threshold in a continuous preset number of periods, it may be determined that the terminal has a radio link failure.
For example, the preset number may be 50, it may be determined whether the SINR of each antenna port is smaller than the first SINR threshold in 50 consecutive periods, and if it is determined that the SINR of each antenna port is smaller than the first SINR threshold in 50 consecutive periods, it may be determined that the radio link failure occurs in the terminal.
According to the method for detecting the radio link failure, the SRS reported by the terminal is periodically detected, the comparison result of each period can be counted to obtain the SINR statistical information, the comparison result is the comparison result between the SINR of each antenna port used by the SRS and the first SINR threshold value, the terminal is powered down to cause the radio link failure, and further if the SINR statistical information is determined to be smaller than the first SINR threshold value in a continuous preset number of periods, the terminal can be determined to generate the radio link failure, and the radio resource occupied by the powered down terminal can be quickly released.
Optionally, the SINR statistics includes statistics values of each antenna port, an initial statistics value is the preset number, and the acquiring the signal-to-interference-and-noise ratio SINR statistics by periodically detecting a sounding reference signal SRS reported by a terminal includes:
based on the SRS reported by the terminal, the SINR of each antenna port is obtained;
Updating the statistic value of each antenna port based on the first SINR threshold and SINR of each antenna port;
updating the statistic value of each antenna port based on the first SINR threshold and the SINR of each antenna port, including:
If the SINR of the target antenna port is determined to be smaller than the first SINR threshold, the operation of subtracting 1 from the statistic value of the target antenna port is executed;
or if the SINR of the target antenna port is determined to be greater than or equal to the first SINR threshold, configuring the statistical value of the target antenna port as the preset number;
the target antenna port is any one of antenna ports used by the SRS.
Specifically, in order to obtain SINR statistics information, the statistics value of each antenna port may be updated in each period, in any period, the SINR of each antenna port may be obtained based on the SRS reported by the terminal, and further, the SINR of each antenna port may be compared with the first SINR threshold to obtain a comparison result, and the statistics value of each antenna port may be updated based on the comparison result.
Optionally, in the comparing process, a magnitude relation between the SINR of the target antenna port and the first SINR threshold may be compared, and if it is determined that the SINR of the target antenna port is less than the first SINR threshold, an operation of subtracting 1 from the statistical value of the target antenna port may be performed.
For example, the first SINR threshold may be 118, at the beginning of a comparison process, the statistical value of the target antenna port may be 50, the magnitude relation between the SINR of the target antenna port and the first SINR threshold may be compared, if the SINR of the target antenna port is 100, it may be determined that the SINR of the target antenna port is less than the first SINR threshold, and then the operation of subtracting 1 from the statistical value of the target antenna port may be performed, at the end of the comparison process, the statistical value of the target antenna port may be 49.
Optionally, in the comparing process, the magnitude relation between the SINR of the target antenna port and the first SINR threshold may be compared, and if it is determined that the statistical value of the target antenna port is 0 and the SINR of the target antenna port is less than the first SINR threshold, the statistical value of the target antenna port may be kept as 0, without performing the operation of subtracting 1 from the statistical value of the target antenna port.
Optionally, in the comparing process, a magnitude relation between the SINR of the target antenna port and the first SINR threshold may be compared, and if it is determined that the SINR of the target antenna port is greater than or equal to the first SINR threshold, the statistical value of the target antenna port may be configured to be the preset number.
For example, the first SINR threshold may be 118, the preset number may be 50, at the beginning of a certain comparison process, the statistical value of the target antenna port is 35, the magnitude relation between the SINR of the target antenna port and the first SINR threshold may be compared, if the SINR of the target antenna port is 120, it may be determined that the SINR of the target antenna port is greater than the first SINR threshold, and if the SINR of the target antenna port is greater than the first SINR threshold, the statistical value of the target antenna port may be configured to be 50.
Therefore, the statistics of each antenna port can be updated in each period, the SINR statistics can characterize the communication quality of each antenna port in several consecutive periods, and by analyzing the SINR statistics, it can be determined whether or not a radio link failure has occurred.
Optionally, the determining, based on the SINR statistics, that the SINR of each antenna port is less than the first SINR threshold for a consecutive preset number of periods includes:
and if the statistical value of each antenna port is equal to 0, determining that the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods.
Specifically, a specific manner of analyzing the SINR statistics may be to determine whether the statistics of each antenna port is less than or equal to 0, and if it is determined that the statistics of each antenna port is equal to 0, it may be determined that the SINR of each antenna port is less than the first SINR threshold in a continuous preset number of periods, and further it may be determined that a radio link failure occurs.
Therefore, if the statistical value of each antenna port is equal to 0, it can be determined that the terminal fails in radio link, and the radio resource occupied by the power-down terminal can be quickly released.
Optionally, the method further comprises:
And if the terminal is determined not to have radio link failure based on the channel quality indicator CQI and/or the uplink data sent by the terminal, configuring the statistic value of each antenna port as the preset number.
Specifically, in the case that the terminal communication is normal, the physical layer (PHY) may have a problem in SRS decoding, in order to avoid this, the radio link state of the terminal may be determined based on the channel quality indicator (Channel Quality Indicator, CQI) and/or the uplink data sent by the terminal, and if it is determined that the terminal has not failed in the radio link, the statistics value of each antenna port may be configured to be a preset number, and further, the statistics value of each antenna port is all greater than 0, so that it is possible to avoid using the SRS to perform radio link failure detection in the case that the terminal communication is normal.
Optionally, the Uplink data is data sent by the terminal based on a Physical Uplink shared channel (Physical Uplink SHARED CHANNEL, PUSCH), if the Uplink data can be received, it can be determined that the terminal has not failed in a radio link, and the statistical value of each antenna port can be configured to be a preset number.
Optionally, the CQI may be sent by the terminal based on a physical uplink control channel (Physical Uplink Control Channel, PUCCH), and the radio link state of the terminal may be determined based on the received CQI, and if it is determined that the radio link failure does not occur in the terminal, the statistics value of each antenna port may be configured to be a preset number.
Optionally, the radio link state of the terminal may be determined based on the CQI and the uplink data, and if it is determined that the radio link failure does not occur in the terminal, the statistical value of each antenna port may be configured to be a preset number.
Therefore, by judging the radio link state of the terminal based on the CQI and/or the uplink data, it is possible to avoid using the SRS for radio link failure detection in the case where the terminal communication is normal.
Optionally, the determining that the terminal has not failed in the radio link based on the channel quality indicator CQI and/or the uplink data sent by the terminal includes:
and if the SINR of the PUCCH is determined to be greater than or equal to a second SINR threshold based on the CQI, determining that the terminal does not have radio link failure.
Specifically, the magnitude relation between the SINR of the physical uplink control channel (Physical Uplink Control Channel, PUCCH) and the second SINR threshold may be determined based on the CQI, if it is determined that the SINR of the PUCCH is greater than or equal to the second SINR threshold, it may be determined that no radio link failure occurs in the terminal, the statistical value of each antenna port may be configured to be a preset number, and further, the statistical value of each antenna port is greater than 0, which may enable avoiding radio link failure detection using SRS in a case where the terminal communication is normal.
For example, the second SINR threshold may be 118, and if the SINR of the PUCCH is determined to be 120 based on the CQI, it may be determined that the SINR of the PUCCH is greater than the second SINR threshold, and it may be determined that the terminal has not failed the radio link.
Optionally, if it is determined that the CQI is not PUSCH multiplexing and the SINR of the PUCCH is determined to be less than the second SINR threshold based on the CQI, it may be determined that the current terminal signal is not good or is in a dropped state, and the SRS is still used for radio link failure detection.
For example, the second SINR threshold may be 118, and if it is determined that the SINR of the PUCCH is 100 (the SINR of the PUCCH is smaller than the second SINR threshold) and it is determined that the CQI is not PUSCH multiplexed, it may be determined that the current terminal signal is not good or is in a dropped state, and SRS is still used for radio link failure detection.
Optionally, the acquiring SINR of each antenna port based on the SRS reported by the terminal includes:
determining signal-to-noise ratios of a plurality of resource block channels corresponding to the target antenna ports based on the SRS reported by the terminal;
And determining an average value of signal-to-noise ratios of a plurality of resource block channels as the SINR of the target antenna port.
Specifically, in any period, the SINR of each antenna port may be obtained based on the SRS reported by the terminal. The target antenna port may be any one of antenna ports used for SRS, and a specific process of obtaining the SINR of the target antenna port may be based on SRS reported by the terminal, to obtain signal-to-noise ratios (Signal to Noise Ratio, SNR) of a plurality of Resource Block (RB) channels corresponding to the target antenna port, and further, an average value may be calculated based on the SNRs of the plurality of RB channels, and the average value may be used as the SINR of the target antenna port.
Therefore, in each period, the SRS reported by the terminal is analyzed, so that the SINR of each antenna port can be obtained, and the statistic value of each antenna port can be updated based on the SINR of each antenna port.
According to the method for detecting the radio link failure, the SRS reported by the terminal is periodically detected, the comparison result of each period can be counted to obtain the SINR statistical information, the comparison result is the comparison result between the SINR of each antenna port used by the SRS and the first SINR threshold value, the terminal is powered down to cause the radio link failure, and further if the SINR statistical information is determined to be smaller than the first SINR threshold value in a continuous preset number of periods, the terminal can be determined to generate the radio link failure, and the radio resource occupied by the powered down terminal can be quickly released.
The following describes the radio link failure detection device provided by the present invention, and the radio link failure detection device described below and the radio link failure detection method described above may be referred to correspondingly.
Fig. 2 is a schematic structural diagram of a radio link failure detection apparatus provided in the present invention, and as shown in fig. 2, the apparatus includes an acquisition module 201 and a determination module 202, where:
The obtaining module 201 is configured to obtain, by using a sounding reference signal SRS reported by a periodic detection terminal, signal-to-interference-and-noise ratio SINR statistics information, where the SINR statistics information is used to count comparison results of each period, where the comparison results are comparison results between SINR of each antenna port used by the SRS and a first SINR threshold;
A determining module 202, configured to determine that the terminal fails the radio link if it is determined, based on the SINR statistics, that the SINR of each antenna port is smaller than the first SINR threshold for a consecutive preset number of periods.
According to the radio link failure detection device provided by the invention, the SRS reported by the terminal is periodically detected, so that the comparison result of each period can be counted to obtain SINR statistical information, the comparison result is the comparison result between the SINR of each antenna port used by the SRS and the first SINR threshold value, the terminal is powered down to cause the radio link failure, and further, if the SINR of each antenna port is determined to be smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, the terminal can be determined to generate the radio link failure, and the radio resource occupied by the powered down terminal can be quickly released.
Optionally, the SINR statistics include statistics of each antenna port, the initial statistics are the preset number, and the obtaining module is specifically configured to:
based on the SRS reported by the terminal, the SINR of each antenna port is obtained;
Updating the statistic value of each antenna port based on the first SINR threshold and SINR of each antenna port;
updating the statistic value of each antenna port based on the first SINR threshold and the SINR of each antenna port, including:
If the SINR of the target antenna port is determined to be smaller than the first SINR threshold, the operation of subtracting 1 from the statistic value of the target antenna port is executed;
or if the SINR of the target antenna port is determined to be greater than or equal to the first SINR threshold, configuring the statistical value of the target antenna port as the preset number;
the target antenna port is any one of antenna ports used by the SRS.
Optionally, the determining module is specifically configured to:
and if the statistical value of each antenna port is equal to 0, determining that the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods.
Optionally, the apparatus further comprises a configuration module, the configuration module is configured to:
And if the terminal is determined not to have radio link failure based on the channel quality indicator CQI and/or the uplink data sent by the terminal, configuring the statistic value of each antenna port as the preset number.
Optionally, the configuration module is specifically configured to:
and if the SINR of the physical uplink control channel PUCCH is determined to be greater than or equal to a second SINR threshold value based on the CQI, determining that the terminal does not have radio link failure.
Optionally, the acquiring module is specifically configured to:
determining signal-to-noise ratios of a plurality of resource block channels corresponding to the target antenna ports based on the SRS reported by the terminal;
And determining an average value of signal-to-noise ratios of a plurality of resource block channels as the SINR of the target antenna port.
According to the radio link failure detection device provided by the invention, the SRS reported by the terminal is periodically detected, so that the comparison result of each period can be counted to obtain SINR statistical information, the comparison result is the comparison result between the SINR of each antenna port used by the SRS and the first SINR threshold value, the terminal is powered down to cause the radio link failure, and further, if the SINR of each antenna port is determined to be smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, the terminal can be determined to generate the radio link failure, and the radio resource occupied by the powered down terminal can be quickly released.
Fig. 3 is a schematic structural diagram of an electronic device according to the present invention, as shown in fig. 3, the electronic device may include a processor 310, a communication interface (Communications Interface), a memory 330 and a communication bus 340, where the processor 310, the communication interface 320 and the memory 330 complete communication with each other through the communication bus 340. The processor 310 may invoke logic instructions in the memory 330 to perform a method of detecting a radio link failure, e.g., the method includes:
acquiring SINR statistical information by periodically detecting a sounding reference signal SRS reported by a terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results of SINR of each antenna port used by the SRS and a first SINR threshold;
and if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, determining that the terminal fails in the radio link.
Further, the logic instructions in the memory 330 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, where the computer program, when executed by a processor, can perform a method for detecting a radio link failure provided by the above methods, where the method includes:
acquiring SINR statistical information by periodically detecting a sounding reference signal SRS reported by a terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results of SINR of each antenna port used by the SRS and a first SINR threshold;
and if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, determining that the terminal fails in the radio link.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method for detecting a radio link failure provided by the above methods, for example, the method includes:
acquiring SINR statistical information by periodically detecting a sounding reference signal SRS reported by a terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results of SINR of each antenna port used by the SRS and a first SINR threshold;
and if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, determining that the terminal fails in the radio link.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (8)
1. A method for detecting a radio link failure, comprising:
acquiring SINR statistical information by periodically detecting a sounding reference signal SRS reported by a terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results of SINR of each antenna port used by the SRS and a first SINR threshold;
if the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods based on the SINR statistical information, determining that the terminal fails in a radio link;
The SINR statistical information comprises statistical values of all antenna ports, the initial statistical values are the preset number, and the SINR statistical information is obtained by periodically detecting sounding reference signals SRS reported by a terminal, and the SINR statistical information comprises:
based on the SRS reported by the terminal, the SINR of each antenna port is obtained;
Updating the statistic value of each antenna port based on the first SINR threshold and SINR of each antenna port;
updating the statistic value of each antenna port based on the first SINR threshold and the SINR of each antenna port, including:
If the SINR of the target antenna port is determined to be smaller than the first SINR threshold, the operation of subtracting 1 from the statistic value of the target antenna port is executed;
if the SINR of the target antenna port is determined to be greater than or equal to the first SINR threshold, configuring the statistic value of the target antenna port as the preset number;
the target antenna port is any one of antenna ports used by the SRS;
The determining, based on the SINR statistics, that the SINR of each antenna port is less than the first SINR threshold for a predetermined number of consecutive periods includes:
and if the statistical value of each antenna port is equal to 0, determining that the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods.
2. The method for detecting a radio link failure according to claim 1, further comprising:
And if the terminal is determined not to have radio link failure based on the channel quality indicator CQI and/or the uplink data sent by the terminal, configuring the statistic value of each antenna port as the preset number.
3. The method for detecting a radio link failure according to claim 2, wherein the determining that the terminal has not failed in the radio link based on the channel quality indicator CQI and/or uplink data sent by the terminal includes:
and if the SINR of the physical uplink control channel PUCCH is determined to be greater than or equal to a second SINR threshold value based on the CQI, determining that the terminal does not have radio link failure.
4. The method for detecting a radio link failure according to any one of claims 1 to 3, wherein the obtaining SINR of each antenna port based on SRS reported by the terminal includes:
determining signal-to-noise ratios of a plurality of resource block channels corresponding to the target antenna ports based on the SRS reported by the terminal;
And determining an average value of signal-to-noise ratios of a plurality of resource block channels as the SINR of the target antenna port.
5. A radio link failure detection apparatus, comprising:
The acquisition module is used for acquiring SINR statistical information through a sounding reference signal SRS reported by the periodical detection terminal, wherein the SINR statistical information is used for counting comparison results of each period, and the comparison results are comparison results between SINR of each antenna port used by the SRS and a first SINR threshold;
A determining module, configured to determine that a radio link failure occurs in the terminal if it is determined, based on the SINR statistics information, that the SINR of each antenna port is smaller than the first SINR threshold in a continuous preset number of periods;
The SINR statistical information comprises statistical values of all antenna ports, the initial statistical values are the preset number, and the SINR statistical information is obtained by periodically detecting sounding reference signals SRS reported by a terminal, and the SINR statistical information comprises:
based on the SRS reported by the terminal, the SINR of each antenna port is obtained;
Updating the statistic value of each antenna port based on the first SINR threshold and SINR of each antenna port;
updating the statistic value of each antenna port based on the first SINR threshold and the SINR of each antenna port, including:
If the SINR of the target antenna port is determined to be smaller than the first SINR threshold, the operation of subtracting 1 from the statistic value of the target antenna port is executed;
if the SINR of the target antenna port is determined to be greater than or equal to the first SINR threshold, configuring the statistic value of the target antenna port as the preset number;
the target antenna port is any one of antenna ports used by the SRS;
The determining, based on the SINR statistics, that the SINR of each antenna port is less than the first SINR threshold for a predetermined number of consecutive periods includes:
and if the statistical value of each antenna port is equal to 0, determining that the SINR of each antenna port is smaller than the first SINR threshold value in a continuous preset number of periods.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of radio link failure detection as claimed in any one of claims 1 to 4 when the program is executed by the processor.
7. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the method of detecting a radio link failure according to any of claims 1 to 4.
8. A computer program product comprising a computer program which, when executed by a processor, implements a method of radio link failure detection according to any of claims 1 to 4.
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| CN102143522A (en) * | 2011-04-13 | 2011-08-03 | 电信科学技术研究院 | Method and equipment for processing radio link failure |
| CN111614447A (en) * | 2019-04-01 | 2020-09-01 | 维沃移动通信有限公司 | Wireless link state indication reporting method and terminal equipment |
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| CN102143522A (en) * | 2011-04-13 | 2011-08-03 | 电信科学技术研究院 | Method and equipment for processing radio link failure |
| CN111614447A (en) * | 2019-04-01 | 2020-09-01 | 维沃移动通信有限公司 | Wireless link state indication reporting method and terminal equipment |
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