CN114079539B - Wireless information communication method and wireless communication equipment - Google Patents
Wireless information communication method and wireless communication equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
Abstract
The invention discloses a wireless information communication method, which is used for wireless communication equipment and comprises a transmitting end and a receiving end, and comprises the following steps: making related codes according to the number of functional information to be transmitted wirelessly, wireless channel parameters and a preset hamming distance threshold; the sending end stores the related codes as a first group of related codes, and the receiving end stores the related codes as a second group of related codes; the transmitting end selects and transmits corresponding related codes in the first group of related codes according to the function information to be transmitted; the receiving end receives the related codes sent by the sending end, carries out related calculation on the received related codes and the second group of related codes respectively to obtain a related value group, and calculates the maximum related value; when the maximum correlation value is larger than a preset correlation threshold, the receiving end executes the function represented by the correlation code corresponding to the maximum correlation value.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a wireless information communication method and a wireless communication device.
Background
In the field of TWS wireless communication, two headphones, in order to achieve functional synchronization, make a user feel that the two headphones are integrated, and exchange information on a wireless link. However, signal attenuation and uncertain interference environments exist on a wireless link, so that information communication errors occur and communication is unstable.
In the conventional technical scheme, in order to enhance stability and reduce retransmission rate, DM1 packets specified by the bluetooth protocol may be used, and the type of packets uses FEC1/3 for error correction and GFSK modulation. The performance of this approach is generally easily disturbed and the signal attenuation resistance is poor. Another conventional technique uses a segment of correlation code that indicates 1 bit of information, i.e., yes or no. Since only a series of related codes are used to express 1 bit of information, the performance is extremely high and the retransmission rate is low. However, the amount of expressible information is low.
The traditional technical scheme has the following defects:
1. is easy to be interfered and has poor signal attenuation resistance;
2. the information transmission amount is low.
Disclosure of Invention
Based on the above-described situation, a main object of the present invention is to provide a wireless information communication method and a wireless communication device which have high anti-interference and anti-fading capabilities and a high transmission information amount.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a wireless information communication method for a wireless communication device, the wireless communication device including a transmitting end and a receiving end, comprising the steps of:
s10: making related codes according to the number of functional information to be transmitted wirelessly, wireless channel parameters and a preset Hamming distance threshold, wherein the related codes are binary sequences, and each related code is used for representing one type of functional information to be transmitted wirelessly;
s20: the sending end stores the related codes as a first group of related codes, and the receiving end stores the related codes as a second group of related codes;
s30: the transmitting end selects corresponding related codes from the first group of related codes according to the function information to be transmitted and transmits the corresponding related codes;
s40: the receiving end receives the related codes sent by the sending end, carries out related calculation on the received related codes and the second group of related codes respectively to obtain a related value group, and calculates the maximum related value;
s50: when the maximum correlation value is greater than a preset correlation threshold, executing step S60;
s60: and the receiving end executes the function represented by the correlation code corresponding to the maximum correlation value.
Preferably, the wireless channel parameters include: the probability of bit errors of the related codes, the probability of correct recognition of the related codes, the probability of false detection of the related codes and the probability of false recognition among the related codes caused by the channel environment.
Preferably, the step S10 includes:
formulating the number of the related codes according to the number of the wireless transmission function information;
and formulating the length and the content of the related codes according to the number of the related codes, the probability of bit errors of the related codes caused by the channel environment, the correct recognition probability of the related codes, the false detection probability of the related codes, the false recognition probability among the related codes and the hamming distance threshold, wherein the hamming distance among the related codes is larger than the preset hamming distance threshold.
Preferably, the step S40 of performing correlation calculation on the received correlation code and the second set of correlation codes includes:
and respectively carrying out convolution calculation on the received related codes and each related code in the second group of related codes.
Preferably, the convolution calculation includes exclusive or non-calculation of the correlation code and each data bit of the second set of correlation codes.
Preferably, the preset correlation threshold is set according to the probability of bit errors of the correlation codes, the correct recognition probability of the correlation codes, the false detection probability of the correlation codes and the false recognition probability between the correlation codes caused by the channel environment.
Preferably, the method further comprises the step of transmitting part of the function information by using a DM1 packet of a Bluetooth protocol.
Preferably, the wireless communication device is a bluetooth communication device.
The invention also provides a wireless communication device, which comprises a transmitting end and a receiving end,
the transmitting end comprises a first memory and a transmitting module,
the first memory is configured to store at least one correlation code, where the correlation code is formulated according to the number of functional information to be transmitted by the wireless communication device, a channel parameter, and a preset hamming distance threshold, and the correlation code is a binary number sequence, and each correlation code is used to represent one type of functional information to be transmitted by the wireless communication device;
the transmitting module is used for selecting and transmitting a corresponding related code from the at least one related code according to the function information to be transmitted;
the receiving end comprises a second memory, a receiving module, a correlation calculation module, a correlation value comparison module, a correlation value threshold comparison module and an execution module,
the second memory is used for storing the at least one related code,
the receiving module is used for receiving the related codes sent by the transmitting module;
the correlation calculation module is used for respectively carrying out correlation calculation according to the correlation code received by the receiving module and the correlation code stored in the second memory to obtain at least one correlation value;
the correlation value comparison module is used for calculating a maximum correlation value according to the at least one correlation value;
the correlation value threshold comparison module is configured to compare the maximum correlation value with a preset correlation value threshold, and when the maximum correlation value is greater than the preset correlation threshold, the receiving module is capable of executing a function represented by a correlation code corresponding to the maximum correlation value.
Preferably, the channel parameters include: the probability of bit errors of the related codes, the probability of correct recognition of the related codes, the probability of false detection of the related codes and the probability of false recognition among the related codes caused by the channel environment.
Preferably, the correlation calculation module comprises at least one correlation calculation unit,
and the at least one correlation calculation unit performs correlation calculation according to the correlation codes received by the receiving module and the at least one correlation code stored in the second memory, wherein the number of the correlation calculation units is the same as that of the correlation codes.
Preferably, the correlation calculation unit includes M registers, M convolution calculation circuits, and M-1 accumulators, where M is equal to a length value of the correlation code;
the M registers respectively receive binary values of each bit of the related code received by the receiving module;
the M convolution computing circuits receive binary numbers of each bit of the related code received by the M registers and carry out convolution related computation with the corresponding binary number of at least one related code stored in the second memory;
and the M-1 accumulators respectively accumulate the output values of the M convolution calculation circuits so as to output the correlation value of the correlation code received by the receiving module and at least one correlation code stored in the second memory.
Preferably, the M convolution calculating circuits are exclusive-or circuits, and the exclusive-or circuits receive each binary value of the related code received by the M registers and a corresponding binary value of at least one related code stored in the second memory, and perform exclusive-or calculation.
Preferably, the correlation value comparison module includes a plurality of comparators, and the comparators receive the at least one correlation value and calculate a maximum correlation value.
Preferably, the correlation value threshold comparison module includes a comparator, where the comparator is configured to receive the maximum correlation value and compare the maximum correlation value with the preset correlation threshold, and when the maximum correlation value is greater than the preset correlation threshold, the receiving end performs a function of a correlation code corresponding to the maximum correlation value.
Preferably, the transmitting module is a bluetooth transmitting module, the receiving module is a bluetooth receiving module, the transmitting module can also use a DM1 packet of a bluetooth protocol to transmit part of the function information, and the receiving module can also receive the DM1 packet of the bluetooth protocol.
Preferably, the wireless communication device is a wireless headset pair or a wireless stereo pair.
Preferably, the wireless earphone pair is a TWS bluetooth earphone, or the wireless stereo pair is a TWS bluetooth stereo.
According to the wireless information communication method, related codes are formulated according to the number of functional information required to be transmitted wirelessly, wireless channel parameters and a preset Hamming distance threshold value, a transmitting end selects one of the related codes to transmit the pre-transmitted functional information, a receiving end performs related calculation of a plurality of related codes in parallel, the functional information of the transmitting end is analyzed, the functional synchronization of the two parties of wireless information communication is realized, the wireless communication performance is enhanced, the anti-interference and anti-attenuation capabilities are enhanced, and more information can be exchanged compared with the second traditional technology.
The wireless communication equipment stores customized related codes, the transmitting end selects one of the related codes to transmit the pre-transmitted functional information by adding hardware resources, the receiving end performs related calculation of a plurality of related codes in parallel, and analyzes the functional information of the transmitting end, thereby realizing the functional synchronization of the two parties of wireless information exchange, enhancing the anti-interference and anti-attenuation capabilities and increasing the transmitted information quantity.
Other advantages of the present invention will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.
Drawings
Preferred embodiments of a wireless information communication method and a wireless communication device according to the present invention will be described below with reference to the accompanying drawings. In the figure:
FIG. 1 is a flow chart of a wireless information communication method according to a preferred embodiment of the present invention;
fig. 2 is a schematic diagram of a wireless communication device according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a correlation calculation module according to a preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of a correlation computation unit in accordance with a preferred embodiment of the present invention;
FIG. 5 is a diagram of a correlation value comparison circuit according to a preferred embodiment of the present invention;
FIG. 6 is a diagram of a correlation value threshold comparison circuit in accordance with a preferred embodiment of the present invention;
fig. 7 is a schematic diagram showing a structure of a transmitting end of a wireless communication device according to a preferred embodiment of the present invention;
fig. 8 is a schematic diagram of a receiving end structure of a wireless communication device according to a preferred embodiment of the present invention.
Detailed Description
Fig. 1 is a wireless information communication method according to a preferred embodiment of the present invention, for a wireless communication device including a transmitting end and a receiving end, the method comprising: step S10: making related codes according to the number of the functional information to be transmitted wirelessly, the wireless channel parameters and a preset hamming distance threshold value, wherein the related codes can be binary sequences, and each related code is used for representing one type of functional information to be transmitted wirelessly; step S20: the sending end stores the related codes as a first group of related codes, and the receiving end stores the related codes as a second group of related codes; step S30: the transmitting end selects and transmits corresponding related codes in the first group of related codes according to the function information to be transmitted; step S40: the receiving end receives the related codes sent by the sending end, carries out related calculation on the received related codes and the second group of related codes respectively to obtain a related value group, and calculates the maximum related value; step S50: when the maximum correlation value is greater than the preset correlation threshold, step S60 is executed: the receiving end executes the function represented by the correlation code corresponding to the maximum correlation value. The function information can be a prompt tone, communication between the sending end and the receiving end, audio synchronization between the sending end and the receiving end, and determination of whether the audio packet is received correctly.
According to the wireless information communication method, related codes are formulated according to the number of functional information required to be transmitted wirelessly, wireless channel parameters and a preset Hamming distance threshold value, a transmitting end selects one of the related codes to transmit the pre-transmitted functional information, a receiving end performs related calculation of a plurality of related codes in parallel, the functional information of the transmitting end is analyzed, the functional synchronization of the two parties of wireless information communication is realized, the wireless communication performance is enhanced, the anti-interference and anti-attenuation capabilities are enhanced, and more information can be exchanged compared with the second traditional technology.
In one embodiment, the wireless channel parameters may include: the probability P of bit errors of the related codes, the correct recognition probability Pc of the related codes, the false detection probability Pe of the related codes and the false recognition probability Pr between the related codes caused by the wireless channel environment.
In a specific embodiment, the correlation code correct recognition probability Pc, the correlation code false detection probability Pe and the false recognition probability Pr between the correlation codes may be calculated according to the probability P of the correlation code bit error caused by the radio channel environment. For example, the length of the correlation code is N bits, the function information is defined to be that the sending end and the receiving end enter and exchange into a correlation code sequence, the preset correlation threshold is N-1, that is, error one bit is allowed, and then the correct recognition probability of the correlation code is:
P c ＝(1-P) M-1 p
the relevant code false detection probability is:
P e ＝0.5 N-1
the error detection of the related code means that the receiving end obtains the information corresponding to the related code in interference or noise, but the implementation transmitting end does not transmit the related code.
The error recognition probability Pr between the related codes is as follows:
P r ＝(1-P)P N-1
as can be seen from the calculation formula, the larger the correlation code length is, the lower the false detection probability is, in addition, along with the decrease of the preset correlation threshold, the higher the correct detection probability can be obtained, and meanwhile, the false recognition probability among the correlation codes can be reduced by increasing the correlation code length and the correlation threshold. The probability value is a theoretical calculation value given knowing the correlation code length. In the scheme, the probability value is counted according to design requirements, and the length of the related codes is designed according to the probability value, the number of the related codes and a preset Hamming distance threshold.
Therefore, the scheme establishes the length of the related code and the related threshold according to the probability of the bit error of the related code, the correct recognition probability of the related code, the false detection probability of the related code and the false recognition probability between the related codes caused by the channel environment. Of course, the correlation code length cannot be infinitely increased, and the longest correlation code length is formulated by considering the bandwidth and the energy resources because the bandwidth resources and the energy resources are limited.
In an embodiment, the number of related codes may be formulated according to the number of functional information to be wirelessly transmitted, and in general, the number of related codes is equal to the number of functional information to be wirelessly transmitted; and then the length and the content of the related codes are formulated according to the number of the related codes, the bit error probability of the related codes, the correct recognition probability of the related codes, the false detection probability of the related codes, the false recognition probability among the related codes and the Hamming distance threshold value, wherein the Hamming distance among the related codes is larger than the preset Hamming distance threshold value. The minimum length of the required correlation code can be determined according to the number of the determined correlation codes; next, as the length of the correlation code is larger, the false detection probability is lower, so that the probability P of the bit error of the correlation code, the correct recognition probability Pc of the correlation code, which are caused by the wireless channel environment, can be combined, and the length of the correlation code, which needs to be despread, of the false recognition probability Pr between the false detection probability Pe of the correlation code and the correlation code; meanwhile, the hamming distance between the related codes is ensured to be larger than a preset hamming distance threshold, so that the length and the content of the related codes are designed according to the hamming distance requirement.
In the prior art, a section of fixed related code is adopted for communication, and the fixed related code is not related to parameters of a wireless channel and the quantity of transmitted functional information, so that the quantity of the transmitted information is very low. The invention establishes corresponding relevant codes for each transmitted function information according to the parameters of the wireless channel, the number of the wireless transmitted function information and the preset Hamming distance threshold value, and improves the transmitted information quantity while ensuring the transmission performance.
Generally, the hamming distance refers to the number of different bits in two related codes, so that the number is larger than a preset hamming distance threshold, thereby meeting the anti-interference requirement. The preset hamming distance threshold is usually a threshold that meets certain requirements, which is tested according to the software and hardware conditions of the wireless communication device. For example, 64.
In an embodiment, step S40 may be to calculate the correlation value set by performing convolution calculation on the received correlation code and each correlation code in the second set of correlation codes. In a specific embodiment, the convolution calculation may be exclusive or calculation of each data bit of the correlation code. The maximum correlation value is output by exclusive or not calculating the same digits in each data bit of the correlation code received by the receiving end and the second group of correlation codes, the maximum digits output the maximum correlation value after the comparison of the correlation values, and when the maximum correlation value is larger than a preset correlation value threshold, the receiving end executes the function of the corresponding correlation code.
In an embodiment, the preset correlation threshold may be set according to the probability P of the bit error of the correlation code, the correct recognition probability Pc of the correlation code, and the incorrect recognition probability Pr between the correlation code and the correlation code due to the wireless channel environment. Since a higher probability of correct detection can be obtained as the preset correlation threshold decreases, a relatively low correlation threshold can be set, but the correlation threshold cannot be decreased indefinitely to ensure accuracy.
In one embodiment, the wireless information communication method of the present invention can be used in combination with a bluetooth protocol, relatively important information is transmitted by the wireless information communication method of the present invention, relatively secondary information is transmitted by DM1 packets using the bluetooth protocol, the amount of information transmission is increased, the anti-interference capability is strong, and the stability can be enhanced to reduce the retransmission rate.
In an embodiment, the wireless communication device performing the wireless information communication method of the present invention may be a bluetooth communication device. Other wireless communication devices are also possible.
The present invention also provides a wireless communication device, fig. 2 is a schematic structural diagram of a wireless communication device according to a preferred embodiment of the present invention, which includes a transmitting end 70 and a receiving end 80, the transmitting end 70 includes a first memory 701 and a transmitting module 702, and the receiving end 80 includes a second memory 801, a receiving module 802, a correlation calculating module 803, a correlation value comparing module 804, a correlation value threshold comparing module 805 and an executing module 806.
The first memory 701 stores at least one correlation code, where the correlation code is formulated according to the number of functional information to be transmitted by the wireless communication device, channel parameters, and a preset hamming distance threshold, and the correlation code is a binary number sequence, and each correlation code is used to represent the functional information to be transmitted by the wireless communication device; the transmitting module 702 selects a corresponding correlation code from the at least one correlation code according to the pre-transmitted function information and transmits the selected correlation code.
The second memory 801 also stores therein at least one correlation code as described above; the receiving module 802 receives the correlation code sent by the transmitting module 702; the correlation calculation module 803 carries out correlation calculation according to the correlation code received by the receiving module 802 and the correlation code stored in the second memory 801 respectively, so as to obtain at least one correlation value; the correlation value comparison module 804 calculates a maximum correlation value according to the at least one correlation value; the correlation value threshold comparison module 805 compares the maximum correlation value with a preset correlation value threshold, and when the maximum correlation value is greater than the preset correlation threshold, the execution module 806 can execute a function represented by a correlation code corresponding to the maximum correlation value, thereby completing function information exchange between the transmitting end and the receiving end, and realizing function synchronization between the transmitting end and the receiving end.
The wireless communication equipment stores customized related codes, the transmitting end selects one of the related codes to transmit the pre-transmitted functional information by adding hardware resources, the receiving end performs related calculation of a plurality of related codes in parallel, and analyzes the functional information of the transmitting end, thereby realizing the functional synchronization of the two parties of wireless information exchange, enhancing the anti-interference and anti-attenuation capabilities and increasing the transmitted information quantity.
In one embodiment, the channel parameters according to which the relevant codes are formulated may include the probability of bit errors of the relevant codes, the probability of correct recognition of the relevant codes, the probability of false detection of the relevant codes and the probability of false recognition between the relevant codes caused by the channel environment.
In a specific embodiment, the number of related codes can be formulated according to the number of the function information transmitted by the wireless communication device; and then according to the number of the related codes and the channel parameters, the probability of bit errors of the related codes and the correct recognition probability of the related codes caused by the channel environment, the error recognition probability between the false detection probability and the related codes of the related codes and the preset hamming distance threshold value, the length and the content of the related codes are formulated, and the hamming distance between the related codes is larger than the preset hamming distance threshold value. Corresponding related codes are formulated according to the method, so that the transmission performance is ensured, and meanwhile, the information quantity of transmission is improved.
In an embodiment, as shown in fig. 3, the correlation calculation module 803 may include at least one correlation calculation unit, for example, N correlation calculation units, where N is greater than or equal to 1, and the N correlation calculation units perform correlation calculation according to the correlation codes received by the receiving module and at least one correlation code stored in the second memory, where the number of correlation calculation units is the same as the number of at least one correlation code stored in the second memory. At least one correlation calculation unit carries out multiple groups of correlation calculation on the received correlation codes at the same time so as to calculate the maximum correlation value at the highest speed, thereby reducing communication delay and improving user experience.
In one embodiment, as shown in fig. 4, the correlation calculation unit may include M registers, M convolution calculation circuits, and M-1 accumulators, where M is equal to a length value of the correlation code. Wherein, M registers respectively receive each binary number value of the related code received by the receiving module; m convolution computing circuits receive binary values of each bit of the related codes stored in M registers and perform convolution related computation with corresponding binary values of at least one related code stored in a second memory; the M-1 accumulators respectively accumulate the output values of the M convolution calculation circuits to output the correlation value of the correlation code received by the receiving module and at least one correlation code stored in the second memory.
In a specific embodiment, the M convolution calculating circuits may be an exclusive-or circuit (XOR-NOT) that receives each binary value of the correlation code received by the M registers and performs XOR-non calculation with a corresponding binary value of at least one correlation code stored in the second memory.
In one embodiment, as shown in fig. 5, the correlation value comparing module 804 includes a plurality of comparators, and the plurality of comparators receives at least one correlation value output by the correlation value calculating module and calculates a maximum correlation value.
In an embodiment, as shown in fig. 6, the correlation value threshold comparing module 805 may include a comparator, where the comparator receives the maximum correlation value and compares with a preset correlation threshold, and when the maximum correlation value is greater than the preset correlation threshold, the receiving end performs a function of a correlation code corresponding to the maximum correlation value, so as to complete function information exchange between the transmitting end and the receiving end.
In a specific embodiment, the preset correlation threshold value may be set according to a probability of bit errors of the correlation code, a probability of correct recognition of the correlation code, a probability of false detection of the correlation code, and a probability of false recognition between the correlation codes, which are caused by a channel environment.
In an embodiment, the transmitting module of the wireless communication device of the present invention may be a bluetooth transmitting module, and the receiving module may be a bluetooth receiving module, where the transmitting module may further use a DM1 packet of a bluetooth protocol to transmit part of the function information, and the receiving module may further receive the DM1 packet of the bluetooth protocol. When a valid function information packet is received, the execution module 806 executes the function corresponding to the function information packet. In general, relatively important information can be transmitted by the scheme of the invention, relatively secondary information can be transmitted by a DM1 packet adopting the Bluetooth protocol, the information transmission quantity is increased, the anti-interference capability is strong, the stability can be enhanced, and the retransmission rate can be reduced.
In an embodiment, the wireless communication device of the present invention may be a pair of wireless headphones or a pair of wireless speakers. The transmitting end and the receiving end are respectively a first wireless earphone and a second wireless earphone, or a first wireless sound and a second wireless sound.
In a specific embodiment, the pair of wireless headphones may be a TWS bluetooth headphone, and the pair of wireless speakers may be TWS bluetooth speakers. The first wireless earphone and the second wireless earphone are TWS Bluetooth earphone, and the first wireless sound and the second wireless sound can be TWS Bluetooth sound.
Fig. 7 shows a schematic diagram of a transmitting end, fig. 8 shows a schematic diagram of a receiving end, and fig. 7 and fig. 8 are taken as examples to illustrate the working process of the technical scheme of the present invention.
Firstly, relevant codes are formulated according to the quantity of functional information, channel parameters and a preset hamming distance threshold value which are required to be transmitted by wireless communication equipment, the hamming distance between the codes is ensured to be larger than the preset hamming distance threshold value, and then the relevant codes are stored into memories of a transmitting end and a receiving end.
When the transmitting end needs to transmit certain function information, such as prompt tone, the modulating circuit of the transmitting end modulates the related code digital stream into specific time domain waveform, and then performs DA conversion, up-conversion, power amplification and the like through the RF transmitting circuit, and then transmits the result.
The RF receiving circuit at the receiving end performs AD conversion, down-conversion and noise reduction treatment on the received signal and then sends the signal to the demodulation circuit, and the demodulation circuit demodulates the specific time domain waveform into a digital signal, usually a digital bit stream or a bit stream with amplitude information; the correlation calculation circuit carries out convolution correlation calculation on the demodulation signal and all local correlation codes to obtain a group of correlation values, and normally, when the correlation codes which are the same as the local correlation codes are received, the convolution output has a peak value; then, the correlation value comparator compares the output amplitude of each correlation extreme circuit to obtain the maximum correlation value, and outputs the maximum value to the correlation threshold comparator; the correlation threshold comparator compares the maximum correlation value with a preset correlation threshold, if the maximum correlation value is larger than the preset correlation threshold, the correlation threshold is detected, and the execution circuit of the receiving end executes the function corresponding to the correlation code, so that the function synchronization of the transmitting end and the receiving end is realized.
It should be noted that step numbers (letter or number numbers) are used in the present invention to refer to certain specific method steps for convenience and brevity only, and are not intended to limit the order of the method steps by letter or number in any way. It will be apparent to those skilled in the art that the sequence of the steps of the relevant method should be determined by the technique itself and should not be unduly limited by the presence of step numbers.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (15)
1. A wireless information communication method for a wireless communication device, the wireless communication device including a transmitting end and a receiving end, comprising the steps of:
s10: making related codes according to the number of functional information to be transmitted wirelessly, wireless channel parameters and a preset hamming distance threshold, wherein the related codes are binary sequences, each related code is used for representing one kind of functional information to be transmitted wirelessly, and the wireless channel parameters comprise: the probability of bit errors of the related codes, the correct recognition probability of the related codes, the false detection probability of the related codes and the false recognition probability among the related codes caused by the channel environment; the step S10 includes:
formulating the number of the related codes according to the number of the wireless transmission function information;
the length and the content of the related codes are formulated according to the number of the related codes, the probability of bit errors of the related codes caused by the channel environment, the correct recognition probability of the related codes, the false detection probability of the related codes, the false recognition probability among the related codes and the hamming distance threshold, and the hamming distance among the related codes is larger than the preset hamming distance threshold;
s20: the sending end stores the related codes as a first group of related codes, and the receiving end stores the related codes as a second group of related codes;
s30: the transmitting end selects corresponding related codes from the first group of related codes according to the function information to be transmitted and transmits the corresponding related codes;
s40: the receiving end receives the related codes sent by the sending end, carries out related calculation on the received related codes and the second group of related codes respectively to obtain a related value group, and calculates the maximum related value;
s50: when the maximum correlation value is greater than a preset correlation threshold, executing step S60;
s60: and the receiving end executes the function represented by the correlation code corresponding to the maximum correlation value.
2. The wireless information exchange method according to claim 1, wherein the step S40 of performing correlation calculation on the received correlation code and the second set of correlation codes, respectively, includes:
and respectively carrying out convolution calculation on the received related codes and each related code in the second group of related codes.
3. The wireless information communication method of claim 2, wherein the convolution calculation includes exclusive-or-non calculation of the correlation code and each data bit of the second set of correlation codes, respectively.
4. A method according to any one of claims 1 to 3, wherein the preset correlation threshold is set according to a probability of bit errors of the correlation code, a probability of correct recognition of the correlation code, a probability of false detection of the correlation code, and a probability of false recognition between the correlation codes caused by the channel environment.
5. The wireless information communication method of claim 1, further comprising, transmitting the partial function information in DM1 packets of a bluetooth protocol.
6. The wireless information communication method according to claim 1, wherein the wireless communication device is a bluetooth communication device.
7. A wireless communication device comprising a transmitting end and a receiving end, characterized in that,
the transmitting end comprises a first memory and a transmitting module,
the first memory is configured to store at least one correlation code, where the correlation code is formulated according to the number of functional information that needs to be transmitted by the wireless communication device, a channel parameter, and a preset hamming distance threshold, the correlation code is a binary number sequence, and each correlation code is used to represent one type of functional information that needs to be transmitted by the wireless communication device, and the channel parameter includes: the probability of bit errors of the related codes, the probability of correct recognition of the related codes, the probability of false detection of the related codes and the probability of false recognition among the related codes caused by the channel environment;
the related codes are the quantity of related codes formulated according to the quantity of the functional information of the wireless transmission, and the length and the content of the related codes are formulated according to the quantity of the related codes, the probability of bit errors of the related codes caused by the channel environment, the correct recognition probability of the related codes, the false detection probability of the related codes, the false recognition probability among the related codes and the hamming distance threshold, and the hamming distance among the related codes is larger than the preset hamming distance threshold;
the transmitting module is used for selecting and transmitting a corresponding related code from the at least one related code according to the function information to be transmitted;
the receiving end comprises a second memory, a receiving module, a correlation calculation module, a correlation value comparison module, a correlation value threshold comparison module and an execution module,
the second memory is for storing the at least one correlation code,
the receiving module is used for receiving the related codes sent by the transmitting module;
the correlation calculation module is used for respectively carrying out correlation calculation according to the correlation code received by the receiving module and the correlation code stored in the second memory to obtain at least one correlation value;
the correlation value comparison module is used for calculating a maximum correlation value according to the at least one correlation value;
the correlation value threshold comparison module is used for comparing the maximum correlation value with a preset correlation value threshold; when the maximum correlation value is greater than a preset correlation threshold, the execution module can execute the function represented by the correlation code corresponding to the maximum correlation value.
8. The wireless communication device of claim 7, wherein the correlation calculation module comprises at least one correlation calculation unit,
and the at least one correlation calculation unit performs correlation calculation according to the correlation codes received by the receiving module and the at least one correlation code stored in the second memory, wherein the number of the correlation calculation units is the same as that of the correlation codes.
9. The wireless communication apparatus according to claim 8, wherein the correlation calculation unit includes M registers, M convolution calculation circuits, and M-1 accumulators, wherein M is equal to a length value of the correlation code;
the M registers respectively receive binary values of each bit of the related code received by the receiving module;
the M convolution computing circuits receive binary numbers of each bit of the related code received by the M registers and carry out convolution related computation with the corresponding binary number of at least one related code stored in the second memory;
and the M-1 accumulators respectively accumulate the output values of the M convolution calculation circuits so as to output the correlation value of the correlation code received by the receiving module and at least one correlation code stored in the second memory.
10. The wireless communication apparatus according to claim 9, wherein the M convolution computing circuits are exclusive-or circuits that receive each bit binary value of the correlation code received by the M registers and a corresponding bit binary value of at least one correlation code stored in the second memory, and perform exclusive-or computation.
11. The wireless communication device according to any of claims 7-10, wherein the correlation value comparison module comprises a plurality of comparators that receive the at least one correlation value and calculate a maximum correlation value.
12. The wireless communication device of claim 7, wherein the correlation value threshold comparison module comprises a comparator for receiving the maximum correlation value and comparing with the preset correlation threshold.
13. The wireless communication device of claim 7, wherein the transmitting module is a bluetooth transmitting module, the receiving module is a bluetooth receiving module, the transmitting module is further capable of transmitting partial function information using a DM1 packet of a bluetooth protocol, and the receiving module is further capable of receiving the DM1 packet of the bluetooth protocol.
14. The wireless communication device of claim 7, wherein the wireless communication device is a wireless headset pair or a wireless stereo pair.
15. The wireless communication device of claim 14, wherein the pair of wireless headphones is a TWS bluetooth headphone or the pair of wireless speakers is a TWS bluetooth speaker.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4236247A (en) * | 1979-01-15 | 1980-11-25 | Organisation Europeene De Recherches Spatiales | Apparatus for correcting multiple errors in data words read from a memory |
| US5280488A (en) * | 1990-11-08 | 1994-01-18 | Neal Glover | Reed-Solomon code system employing k-bit serial techniques for encoding and burst error trapping |
| JPH07202851A (en) * | 1993-12-28 | 1995-08-04 | Pfu Ltd | Radio communication system |
| WO1999021359A1 (en) * | 1997-07-17 | 1999-04-29 | Wavo Corporation | Method and system for transmitting and decoding data in a signal |
| CN103856287A (en) * | 2012-12-03 | 2014-06-11 | 电信科学技术研究院 | Wireless communication data packet transmission method and device |
| CN109787641A (en) * | 2017-11-15 | 2019-05-21 | 中兴通讯股份有限公司 | Coding/decoding method, device and the storage medium of staircase code |
| CN112737729A (en) * | 2019-10-28 | 2021-04-30 | 哈尔滨工业大学（深圳） | Data transmission method and device, computer equipment and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8914697B2 (en) * | 2009-08-26 | 2014-12-16 | Seagate Technology Llc | Data corruption detection |
| KR102061653B1 (en) * | 2013-04-15 | 2020-02-11 | 삼성전자주식회사 | Method and apparatus for bit to simbol mapping in wireless communication system |
| US10984863B2 (en) * | 2018-04-20 | 2021-04-20 | Arm Limited | Error detection and correction circuitry |
-
2021
- 2021-07-28 CN CN202110855788.4A patent/CN114079539B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4236247A (en) * | 1979-01-15 | 1980-11-25 | Organisation Europeene De Recherches Spatiales | Apparatus for correcting multiple errors in data words read from a memory |
| US5280488A (en) * | 1990-11-08 | 1994-01-18 | Neal Glover | Reed-Solomon code system employing k-bit serial techniques for encoding and burst error trapping |
| JPH07202851A (en) * | 1993-12-28 | 1995-08-04 | Pfu Ltd | Radio communication system |
| WO1999021359A1 (en) * | 1997-07-17 | 1999-04-29 | Wavo Corporation | Method and system for transmitting and decoding data in a signal |
| CN103856287A (en) * | 2012-12-03 | 2014-06-11 | 电信科学技术研究院 | Wireless communication data packet transmission method and device |
| CN109787641A (en) * | 2017-11-15 | 2019-05-21 | 中兴通讯股份有限公司 | Coding/decoding method, device and the storage medium of staircase code |
| CN112737729A (en) * | 2019-10-28 | 2021-04-30 | 哈尔滨工业大学（深圳） | Data transmission method and device, computer equipment and storage medium |
Non-Patent Citations (2)
| Title |
|---|
| Ang Jia等.From Innovations to Prospects: What Is Hidden Behind Cryptocurrencies?.《2020 IEEE/ACM 17th International Conference on Mining Software Repositories (MSR)》.2020,全文. * |
| 甘明.跳频通信系统同步技术研究与实现.《中国优秀硕士论文电子期刊网》.2005,全文. * |
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