CN115883023B - GSM error correction decoding method, device, apparatus and storage medium - Google Patents
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Abstract
The invention provides a GSM error correction decoding method, equipment, a device and a storage medium, relating to the technical field of digital information transmission, wherein the method comprises the following steps: receiving part of signaling data sent on different frequency points; if the partial signaling data is lost or has strong interference, carrying out error correction decoding on each bit in the partial signaling data according to the receiving time sequence, and determining the error rate corresponding to the GSM signaling to which the partial signaling data belongs; and when the error rate is minimum, the error correction decoding result corresponding to the GSM signaling is used as the correct decoding of the GSM signaling. The invention sequentially determines the error correction decoding of each bit by segmenting the GSM signaling data with data loss or strong interference and adopting a cyclic error correction mode, and further determines the correct decoding result corresponding to the data of each bit according to the error correction decoding under the condition of minimum corresponding error rate, thereby having high efficiency and greatly improving the performance of the receiver.
Description
Technical Field
The present invention relates to the field of digital information transmission technologies, and in particular, to a method, an apparatus, a device, and a storage medium for GSM error correction decoding.
Background
In a GSM network, when communication air interface data transmission is performed, a piece of signaling is divided into four sections of data with equal length for anti-interference, each section of data is transmitted through electromagnetic waves with different frequencies, and if part of data with a certain frequency is in error, the accuracy of signaling transmission is not basically affected.
However, in a practical application environment, the receiving side is not synchronous with the sending side when acquiring the data, or there is strong interference on a certain frequency, so that the data received on the certain frequency is completely confused, and in this case, correct signaling may not be recovered or may be recovered with a small probability.
Although the GSM network is not developed any more, in a special field, it is still required to support a customized receiving device to detect the GSM air interface, and if the completely erroneous or lost data on a certain frequency can be recovered, the performance of the receiving device will be greatly improved.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a GSM error correction decoding method, equipment, a device and a storage medium.
In a first aspect, the present invention provides a GSM error correction decoding method, including:
receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of a plurality of signaling data with equal length belonging to the same GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs;
and taking the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum.
Optionally, if the part of signaling data has data loss or strong interference, performing error correction decoding on each bit in the part of signaling data according to a receiving time sequence, and determining an error rate corresponding to GSM signaling to which the part of signaling data belongs, including:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
and determining a decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data.
Optionally, the determining, based on the cyclic error correction decoding method, an estimated value corresponding to each bit in the target signaling data includes:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
In a second aspect, the present invention further provides an electronic device, including a memory, a transceiver, and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and implementing the GSM error correction decoding method according to the first aspect described above.
In a third aspect, the present invention further provides a GSM error correction decoding device, including:
the receiving module is used for receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of four signaling data with equal length belonging to the same GSM signaling;
the decoding module is used for carrying out error correction decoding on each bit in the partial signaling data according to the receiving time sequence if the partial signaling data has data loss or strong interference, and determining the error rate corresponding to the GSM signaling to which the partial signaling data belongs;
and the error correction module is used for taking the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum.
In a fourth aspect, the present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a GSM error correction decoding method as described in the first aspect.
In a fifth aspect, the present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements the GSM error correction decoding method according to the first aspect described above.
According to the GSM error correction decoding method, device and storage medium, the error correction decoding of each bit is determined in sequence by segmenting GSM signaling data with data loss or strong interference and adopting a cyclic error correction mode, and then the corresponding error correction decoding is the correct decoding result corresponding to the data of each bit under the condition that the corresponding error rate is determined to be minimum according to the error correction decoding, so that the efficiency is high, and the performance of a receiver is greatly improved.
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In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a GSM error correction decoding method provided by the present invention;
fig. 2 is a schematic structural diagram of an electronic device according to the present invention;
fig. 3 is a schematic structural diagram of a GSM error correction decoding device according to 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 only 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.
The method, apparatus, device and storage medium for GSM error correction decoding provided by the present invention are described below with reference to fig. 1 to 3.
Fig. 1 is a flow chart of a GSM error correction decoding method provided by the present invention, as shown in fig. 1, the method includes:
102, if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs;
and 103, taking the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum.
In particular, the global system for mobile communications (Global System for Mobile Communications, GSM) is a digital mobile communications standard developed by the european telecommunications standards institute (European Telecommunications Standards Institute, ETSI). The corresponding air interface employs time division multiple access techniques. At present, standard viterbi one-time decoding is adopted for decoding the GSM signaling, no intelligent heuristic error correction scheme is performed in the related art, the signaling data of the GSM is usually 456 bits, and the signaling data are transmitted in a segmented form according to different frequency points, and are usually divided into 4 segments, wherein each segment comprises 114 bits. If the received data has more than 30 bit errors, it is difficult to completely correct the received data according to the existing method. If the received data is lost through the data segment of a certain frequency point or the whole data segment of a certain frequency point is subjected to strong interference, the number of bits with errors in the received signaling data is generally more than 50, and if a standard viterbi decoding method is adopted for the situation, the transmitted GSM signaling data cannot be decoded correctly. Therefore, the invention provides GSM error correction decoding, which performs error correction decoding on each bit in a data segment with strong interference or a certain frequency point under the condition that the data segment is completely lost. And further determining one or more possible error correction decoding results, and selecting one of the error correction decoding results with the minimum corresponding error rate from the error correction decoding results as the correct decoding result of the GSM signaling.
The GSM signaling data is sent according to a plurality of segments, each segment adopts different frequency points, under the condition that a data segment of a certain frequency point is lost or strong interference exists, all bits included in the data segment are sequentially subjected to possible values of each bit according to the sequence of receiving time, for example, a plurality of possible values of the bit N1 are determined, the error rate corresponding to the GSM signaling data under each possible value condition is determined, and when the error rate is minimum, the corresponding possible value is used as a correct decoding result of the bit N1. According to the same method, the correct decoding result corresponding to the bit N2 and the correct decoding result corresponding to the subsequent bit N114 are sequentially determined.
Of course, there may be a case where the bit error rate corresponding to the GSM signaling data is the same when different values are taken in the same bit, in this case, the value of the bit may be inverted according to the original value, or the original value may be reserved, after all bits of the whole data segment are circularly determined, based on the result, the error rate corresponding to the GSM signaling data is determined by performing a second cycle, when the error rate is the smallest, the corresponding value is used as the decoding result of the bit, for example, when the possible value of the bit N2 is 0 or 1, and when it is determined that N2 is 0, the error rate corresponding to the GSM signaling data is the first error rate, and when N2 is 1, the error rate corresponding to the GSM signaling data is the second error rate. If the first bit error rate is less than the second bit error rate, then the decoding result for bit N2 is 0.
According to the GSM error correction decoding method, the error correction decoding of each bit is determined in sequence by segmenting GSM signaling data with data loss or strong interference and adopting a cyclic error correction mode, and then the corresponding error correction decoding is the correct decoding result corresponding to the data of each bit under the condition that the corresponding error rate is determined to be minimum according to the error correction decoding, so that the efficiency is high, and the performance of a receiver is greatly improved.
Optionally, if the part of signaling data has data loss or strong interference, performing error correction decoding on each bit in the part of signaling data according to a receiving time sequence, and determining an error rate corresponding to GSM signaling to which the part of signaling data belongs, including:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
and determining an error correction decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data.
Specifically, after receiving GSM signaling data, determining that there is data loss or data segment with strong interference in the GSM signaling data, and filling random data for the data loss part as target signaling data. For data segments with strong interference, the data segments are directly used as target signaling data.
In the target signaling data, based on a cyclic error correction decoding method, determining an estimated value corresponding to each bit, for example, if binary is adopted, a possible estimated value of one bit is 0 or 1, and sequentially and circularly determining the estimated value corresponding to each bit in the target signaling data, specifically by: sequentially taking out one bit from all bits of target signaling data according to time sequence, wherein the target bit is used as a target bit, and an original value, namely an original received value or a filling value for lost data, exists in the target bit, and the error rate corresponding to the GSM signaling to which the target signaling data belongs is determined according to the original value and is used as a first error rate; in addition, if the original value of the bit is inverted, for example, the original value is 0, and 1 is obtained after the inversion, and the bit value is determined to be 1, the error rate corresponding to the GSM signaling to which the target signaling data belongs is used as the second error rate.
If the first bit error rate is less than the second bit error rate, then the correct decoding of the target bit is 0.
If the first bit error rate is greater than the second bit error rate, then the correct decoding of the target bit is 1.
If the first bit error rate is equal to the second bit error rate, then the correct decoding of the target bit is assumed to be 1.
Then, from all bits of the target signaling data, the next bit adjacent to the target bit is taken as the target bit, and the correct decoding of the updated target bit is determined by the same method as described above. This loops until all bits in the target signaling data have been determined.
In order to improve the decoding precision, when the bit takes different values, the corresponding bit error rate is the same, and one or more bits existing in the whole target signaling data are determined once again in a circulating way according to the same method. For example, in the first cycle, two bits N5 and N13 exist in the obtained error correction decoding result, and the corresponding error rates are the same when N5 takes different values, and the corresponding error rates are the same when N13 takes different values. On the basis of the error correction decoding result, a first error rate is determined again for the bit N5 according to the original value, the value of the bit N5 is reversed according to the original value, a second error rate is determined again, and then the error rate is smaller, and the decoding result of the bit N5 is determined to be the value of N5 corresponding to the smaller error rate. There is a special case, of course, that is, the error rates determined by the two methods are the same, and the decoding result of the bit N5 is determined as the original value. Similarly, the corresponding bit N13 is determined in the same way.
After determining the decoding result of one data segment in the GSM signaling data with data loss or strong interference according to the method, other normal data segments can obtain the corresponding correct decoding result according to the original standard Viterbi decoding mode. Thus, the correct decoding results of the plurality of data segments of the GSM signaling data are obtained, and the correct decoding result of the whole GSM signaling data can be obtained.
Therefore, when the error rate is determined to be minimum, the error correction decoding result corresponding to the GSM signaling is used as the correct decoding of the GSM signaling.
According to the GSM error correction decoding method, the error correction decoding of each bit is determined in sequence by segmenting GSM signaling data with data loss or strong interference and adopting a cyclic error correction mode, and then the corresponding error correction decoding is the correct decoding result corresponding to the data of each bit under the condition that the corresponding error rate is determined to be minimum according to the error correction decoding, so that the efficiency is high, and the performance of a receiver is greatly improved.
Fig. 2 is a schematic structural diagram of an electronic device according to the present invention; as shown in fig. 2, the electronic device includes a processor (processor) 210, a communication interface (Communications Interface) 220, a memory (memory) 230, and a communication bus 240, where the processor 210, the communication interface 220, and the memory 230 perform communication with each other through the communication bus 240. Processor 210 may invoke logic instructions in memory 230 to perform a GSM error correction decoding method comprising:
receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of four signaling data with equal length belonging to the same GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs;
and taking the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum.
Optionally, if the part of signaling data has data loss or strong interference, performing error correction decoding on each bit in the part of signaling data according to a receiving time sequence, and determining an error rate corresponding to GSM signaling to which the part of signaling data belongs, including:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
and determining an error correction decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data.
Optionally, the determining, based on the cyclic error correction decoding method, an estimated value corresponding to each bit in the target signaling data includes:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
It should be noted that, the electronic device provided by the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the method embodiment in the present embodiment are not described in detail herein.
Further, the logic instructions in the memory 230 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. And the aforementioned 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, or an optical disk, or other various media capable of storing program codes.
Fig. 3 is a schematic structural diagram of a GSM error correction decoding device according to the present invention, as shown in fig. 3, the device includes:
a receiving module 301, configured to receive part of signaling data sent on different frequency points, where the part of signaling data is any one of four signaling data with equal length belonging to the same GSM signaling;
a decoding module 302, configured to perform error correction decoding on each bit in the partial signaling data according to a receiving time sequence if the partial signaling data has data loss or strong interference, and determine an error rate corresponding to GSM signaling to which the partial signaling data belongs;
and the determining module 303 is configured to take the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum.
Optionally, the decoding module 302 is specifically configured to, in a process of determining an error rate corresponding to GSM signaling to which the partial signaling data belongs by performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence if the partial signaling data has data loss or strong interference:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
and determining a decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data.
Optionally, the decoding module 302 is specifically configured to, in a process of determining the predicted value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
Specifically, the GSM error correction decoding device provided by the present invention can implement all the method steps implemented by the method embodiments and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the method embodiments in the present embodiment are not described in detail herein.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of performing the GSM error correction decoding method provided by the above embodiments.
In another aspect, the present invention further provides a processor readable storage medium, where a computer program is stored, where the computer program is configured to cause the processor to execute the GSM error correction decoding method provided in each of the foregoing embodiments.
The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.
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.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for GSM error correction decoding, comprising:
receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of a plurality of signaling data with equal length belonging to the same GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs;
when the error rate is minimum, the error correction decoding result corresponding to the GSM signaling is used as the correct decoding of the GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs, including:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
determining an error correction decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data;
based on a cyclic error correction decoding method, determining an estimated value corresponding to each bit in the target signaling data includes:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
2. An electronic device comprising a memory, a transceiver, and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of four signaling data with equal length belonging to the same GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs;
when the error rate is minimum, the error correction decoding result corresponding to the GSM signaling is used as the correct decoding of the GSM signaling;
if the partial signaling data has data loss or strong interference, performing error correction decoding on each bit in the partial signaling data according to a receiving time sequence, and determining an error rate corresponding to the GSM signaling to which the partial signaling data belongs, including:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
determining an error correction decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data;
the determining an estimated value corresponding to each bit in the target signaling data based on the cyclic error correction decoding method includes:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
3. A GSM error correction decoding device, said device comprising:
the receiving module is used for receiving part of signaling data sent on different frequency points, wherein the part of signaling data is any one of four signaling data with equal length belonging to the same GSM signaling;
the decoding module is used for carrying out error correction decoding on each bit in the partial signaling data according to the receiving time sequence if the partial signaling data has data loss or strong interference, and determining the error rate corresponding to the GSM signaling to which the partial signaling data belongs;
the determining module is used for taking the error correction decoding result corresponding to the GSM signaling as the correct decoding of the GSM signaling when the error rate is minimum;
the decoding module performs error correction decoding on each bit in the part of signaling data according to a receiving time sequence if the part of signaling data has data loss or strong interference, and is specifically used for determining an error rate corresponding to the GSM signaling to which the part of signaling data belongs:
determining the part of signaling data with data loss or strong interference as target signaling data;
filling a part with data loss in the target signaling data by adopting random data;
determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method;
determining a decoding result corresponding to the target signaling data and an error rate corresponding to the GSM signaling to which the target signaling data belongs based on the pre-estimated value corresponding to each bit in the target signaling data;
the decoding module is specifically configured to, in a process of determining an estimated value corresponding to each bit in the target signaling data based on a cyclic error correction decoding method:
when the numerical value of a target bit in the target signaling data is determined to be an original value, a first error rate corresponding to GSM signaling to which the target signaling data belongs is determined; and when the value of the target bit in the target signaling data is the original value, the second error rate corresponding to the GSM signaling to which the target signaling data belongs; the target bit is any one of all bits included in the target signaling data;
if the first error rate is smaller than the second error rate, determining that the predicted value corresponding to the target bit is an original value;
if the first error rate is greater than or equal to the second error rate, determining that the predicted value corresponding to the target bit is the original value;
updating the target bit to be a bit received at a next adjacent time in the target signaling data.
4. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for causing a computer to execute the GSM error correction decoding method of claim 1.
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