CN113300826B - Communication method, communication device, equipment and computer storage medium - Google Patents
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Abstract
The application discloses a communication method, a communication device, equipment and a computer storage medium. The method comprises the following steps: obtaining effective data bits based on current service parameters, and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises check bits generated based on QR codes; carrying out interleaving processing on the multiple rows and multiple columns of matrixes and configuring synchronous word information to obtain an information bit sequence; mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain; transmitting a signal based on the reverse channel signaling. The scheme provided by the application is used for meeting the use requirements in specific scenes, such as ad hoc network establishment, multi-hop forwarding request and other communication scenes, by adopting the new reverse channel signaling, and meanwhile, the communication quality can be improved, and the performance characteristic is good.
Description
Technical Field
The present disclosure relates to the field of wireless communication technologies, and in particular, to a communication method, a communication apparatus, a device, and a computer storage medium.
Background
The narrow-band private network system is a private mobile communication system, and relevant protocol standards include a DMR protocol, a PDT protocol, a Tetra protocol, and the like. The narrow-band private network system usually includes a plurality of intercom devices, and the related intercom devices mostly adopt a double-time-slot TDMA technique, wherein the double-time-slot TDMA technique divides a channel into two alternate time slots, each time slot is usually 30ms and is used for carrying service data and control signaling.
Disclosure of Invention
The inventor finds that a communication method according to a defined signaling structure in a related standard protocol cannot meet the use requirements under a specific scene, such as ad hoc network establishment, multi-hop forwarding requests and the like; if the improved communication method is directly carried out by using the reverse channel signaling, the requirements cannot be well met due to the limitation of the bit number and the coding mode of the related reverse channel signaling; if other communication methods which are improved by using the abrupt signaling frame structure are used, the use effect is not ideal. Therefore, it is necessary to design an improved reverse channel signaling communication method, which can be applied to the technical field of narrowband private networks, and ensure reliable communication and good performance in the practical application process.
To solve the related technical problems, embodiments of the present disclosure provide a communication method, a communication apparatus, a device, and a computer storage medium.
The technical scheme of the embodiment of the disclosure is realized as follows:
the embodiment of the disclosure provides a communication method, which is applied to a communication device at a sending side, and the method comprises the following steps:
obtaining effective data bits based on the current service parameters, and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises a check bit generated based on QR codes;
interleaving the matrix of a plurality of rows and a plurality of columns and configuring synchronous word information to obtain an information bit sequence;
mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain;
the signal is transmitted based on reverse channel signaling.
In the above scheme, the reverse channel signaling includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, where the 64-bit information embedded in the signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, the second additional bit is used to carry a second symbol, and the first symbol and the second symbol are respectively located at the head and tail ends of the reverse channel signaling to enhance the transceiving stability.
In the above scheme, the 64-bit embedded signaling field includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error detection and correction protection, and the 28-bit valid bit information includes current service parameter information.
In the above scheme, the total duration of the reverse channel signaling is 12.5 ms.
In the above scheme, the current service parameter includes current data type information, source address information, and destination address information.
In the above scheme, the current service parameters further include information on whether the designated node can be reached, round number information, and hop number information to reach the designated node, where the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, the information on whether the designated node can be reached is 2 bits, the round number information is 3 bits, and the hop number information to reach the designated destination node is 3 bits.
In the above scheme, after interleaving the rows and columns of the matrix and configuring the sync word information, an information bit sequence is obtained, which includes:
interweaving the matrix of the rows and the columns by utilizing an interweaving algorithm;
carrying out bit synthesis on the interlaced multi-row and multi-column matrix and a reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of a reverse channel synchronous word.
In the above scheme, obtaining effective data bits based on the current service parameters, and generating a matrix with multiple rows and columns according to the effective data bits includes:
obtaining 28 bit-specific bits based on the current traffic parameters;
dividing the 28-bit effective bits into four rows, wherein each row is expanded by using QR codes to obtain 16-bit data bits, and the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits;
and generating a matrix with a plurality of rows and columns.
The embodiment of the present disclosure further provides a communication device, which includes:
the first processing unit is used for obtaining effective data bits based on the current service parameters and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises a check bit generated based on QR codes;
the second processing unit is used for carrying out interleaving processing on the multi-row and multi-column matrixes and configuring synchronous word information to obtain an information bit sequence;
the third processing unit is used for mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain;
and a transmitting unit for transmitting the signal based on the reverse channel signaling.
In the above scheme, the reverse channel signaling includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, where the 64-bit information embedded in the signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, the second additional bit is used to carry a second symbol, and the first symbol and the second symbol are respectively located at the head and tail ends of the reverse channel signaling to enhance the transceiving stability.
In the above scheme, the 64-bit embedded signaling field includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error detection and correction protection, and the 28-bit valid bit information includes current service parameter information.
In the above scheme, the total duration of the reverse channel signaling is 12.5ms
In the above scheme, the current service parameters include current data type information, source address information, destination address information, information on whether the designated node can be reached, round number information, and hop number information reaching the designated node; the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, whether the information of the appointed node can be reached is 2 bits, the round number information is 3 bits, and the hop number information reaching the appointed node is 3 bits.
In the above scheme, the step of obtaining the information bit sequence after the second processing unit performs interleaving processing on the multiple rows and multiple columns of the matrix and configures the synchronization word information includes:
interweaving the matrix of the rows and the columns by utilizing an interweaving algorithm;
carrying out bit synthesis on the interlaced multi-row and multi-column matrix and a reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of a reverse channel synchronous word.
In the above scheme, the step of obtaining the effective data bits by the first processing unit based on the current service parameters and generating the matrix with multiple rows and multiple columns according to the effective data bits includes:
obtaining 28 bit-specific bits based on the current traffic parameters;
dividing the 28-bit effective bits into four rows, wherein each row is expanded by using QR codes to obtain 16-bit data bits, and the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits;
and generating a matrix with a plurality of rows and columns.
The embodiment of the present disclosure further provides another communication method, which is applied to a communication device on a receiving side, and the method includes:
acquiring a reverse channel signaling, and demodulating the acquired reverse channel signaling;
carrying out channel decoding on the demodulated reverse channel signaling, and extracting an information bit sequence in the reverse channel signaling;
and after the information bit sequence is subjected to de-interleaving processing and QR decoding processing, effective data bits carried by reverse channel signaling are obtained.
The disclosed embodiment also provides another communication device, which includes:
a receiving unit, configured to acquire a reverse channel signaling and demodulate the acquired reverse channel signaling;
the first processing unit is used for carrying out channel decoding on the demodulated reverse channel signaling and extracting an information bit sequence in the reverse channel signaling;
and the second processing unit is used for performing de-interleaving processing and QR decoding processing on the information bit sequence to obtain effective data bits carried by the reverse channel signaling.
The embodiment of the present disclosure further provides an intercom device, where the intercom device is configured to send or receive a reverse channel signaling, and the reverse channel signaling includes a reverse channel synchronization word, an embedded signaling field, and at least two symbols; wherein the content of the first and second substances,
the embedded signaling domains are symmetrically distributed on two sides of the reverse channel synchronous word; the embedded signaling domain comprises an effective bit and a check bit, the effective bit is used for bearing an effective data bit, and the check bit is formed based on QR code extension;
at least two symbols are respectively positioned at the head end and the tail end of the reverse channel signaling to enhance the transceiving stability.
In the above scheme, the reverse channel signaling includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, where the 64-bit information embedded in the signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, the second additional bit is used to carry a second symbol, and the first symbol and the second symbol are respectively located at the head and tail ends of the reverse channel signaling to enhance the transceiving stability.
In the above scheme, the 64-bit embedded signaling field includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error detection and correction protection, and the 28-bit valid bit information includes current service parameter information.
In the above scheme, the total duration of the reverse channel signaling is 12.5 ms.
In the scheme, the embedded signaling domain coding matrix is four rows, each row is expanded by using QR codes to obtain 16-bit data bits, and the 16-bit data bits comprise 7-bit specific bits and 9-bit check bits.
In the above scheme, the valid data bits include 4 bits of current data type information, 2 bits of information on whether the specified node can be reached, 3 bits of round number information, 3 bits of hop number information on reaching the specified destination node, 8 bits of source address information, and 8 bits of destination address information.
An embodiment of the present disclosure further provides an electronic device, including: a processor and a memory for storing a computer program capable of running on the processor; wherein the content of the first and second substances,
the processor is adapted to perform the steps of any of the methods described above when running the computer program.
The embodiment of the disclosure also provides a storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the steps of any one of the methods are implemented.
According to the communication method, the communication device, the equipment and the computer storage medium provided by the embodiment of the disclosure, effective data bits are obtained based on current service parameters, and a multi-row and multi-column matrix is generated according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises a check bit generated based on QR codes; interleaving the matrix of a plurality of rows and a plurality of columns and configuring synchronous word information to obtain an information bit sequence; mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain; the signal is transmitted based on reverse channel signaling. The scheme provided by the disclosure is used for meeting the use requirements in specific scenes, such as ad hoc network establishment, multi-hop forwarding request and other communication scenes, by adopting a new communication method of the reverse channel signaling, and meanwhile, the communication quality can be improved, and the method has good performance characteristics.
Drawings
FIG. 1 is a schematic diagram illustrating a slot configuration of a direct mode in a DMR/PDT standard in the prior art;
FIG. 2 is a diagram illustrating a reverse channel burst structure in the prior art;
FIG. 3 is a diagram illustrating a two-row RC data format in reverse channel signaling in the prior art;
fig. 4 is a flowchart illustrating a first communication method according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram of a network topology in a usage scenario according to an embodiment of the disclosure;
fig. 6 is a flowchart illustrating a second communication method according to an embodiment of the disclosure;
fig. 7 is a schematic diagram of reverse channel signaling according to an embodiment of the disclosure;
fig. 8 is a schematic diagram of a data format of a reverse channel signaling RC domain location according to an embodiment of the disclosure;
fig. 9 is a schematic diagram illustrating byte definition of reverse channel signaling according to an embodiment of the disclosure;
fig. 10 is a schematic structural diagram of a first communication device according to an embodiment of the disclosure;
fig. 11 is a schematic structural diagram of a second communication device according to an embodiment of the disclosure;
fig. 12 is an internal structural view of a computer device according to an embodiment of the present disclosure.
Detailed Description
The present disclosure will be described in further detail with reference to the accompanying drawings and examples.
The related narrowband communication protocol in the embodiment of the present disclosure includes a Digital Mobile Radio standard (DMR) protocol, a Police Digital Trunking standard (PDT) protocol, a terrestrial Trunked Radio System (Trans) protocol, a dpmr (Digital Private Mobile Radio) protocol, and the like. The communication device in the embodiment of the present disclosure may be a handheld interphone, a handheld terminal device, an intercom device, a relay station, or the like.
At present, related intercom devices mostly adopt a dual-timeslot TDMA technology, referring to fig. 1, timeslot identifiers of two TDMA physical channels are 1 and 2, timeslot 1 and timeslot 2 are alternated, and timeslot 1 and timeslot 2 can be used as a traffic channel and/or a reverse channel according to an application scenario. In addition, referring to fig. 2, the existing reverse channel burst frame structure generally includes a 48-bit reverse channel synchronization word and a 48-bit embedded signaling field; wherein the 48-bit embedded signaling field includes a 32-bit RC field and a 16-bit EMB field. Referring to fig. 3, 11 bits of the conventional reverse channel signaling RC field have bits RC (10) — RC (0) in the first row of the matrix, protected by hamming coding, and the bottom row includes parity bits for each column. However, the existing reverse channel burst frame structure only supports communication in modes of direct connection, transfer, clustering and the like between narrowband networking nodes, and cannot meet the use requirements in specific scenes, such as ad hoc network establishment, multi-hop forwarding requests and the like; if the communication method is improved by directly utilizing the reverse channel signaling structure, the requirements cannot be well met due to the limitation of the bit number and the coding mode of the related reverse channel signaling structure; if the communication method is improved by using other abrupt signaling structures, the use effect is not ideal.
Based on this, the embodiments of the present disclosure provide a communication method, a communication apparatus, a device, and a computer storage medium, which are used to meet usage requirements in a specific scenario, such as a scenario where ad hoc network establishment and a multi-hop forwarding request perform communication. In the technical solution provided in the embodiments of the present disclosure, the sending side communication device may communicate with the receiving side communication device by using a reverse channel signaling, where the reverse channel signaling is a new reverse channel signaling designed in the embodiments of the present disclosure. According to the technical scheme provided by the embodiment of the application, on the basis of meeting the use requirement, the communication quality can be improved, and the performance characteristic is good. The method and the device are based on the same inventive concept, and the device and the method can be implemented by referring to each other because the principle of solving the problems of the method and the device is similar.
As shown in fig. 4, the present disclosure provides a first communication method, which is applicable to a communication apparatus on a transmitting side, and includes:
step 401: obtaining effective data bits based on current service parameters, and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises check bits generated based on QR codes;
step 402: carrying out interleaving processing on the multiple rows and multiple columns of matrixes and configuring synchronous word information to obtain an information bit sequence;
step 403: mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain;
step 404: transmitting a signal based on the reverse channel signaling.
It should be noted that, the communication method of the embodiment of the present disclosure generates a new reverse channel signaling and sends a signal based on the reverse channel signaling, valid data bits in the reverse channel signaling are protected by QR codes, and each row in the multi-row and multi-column matrix contains check bits generated based on the QR codes; determining the position of each bit in a transmission array after interleaving, placing the bits in an embedded signaling domain field, and configuring synchronous word information to obtain an information bit sequence; at least one symbol is respectively mapped at the head end and the tail end of the information bit sequence, so that the transceiving stability is enhanced, and the processing performance is improved; the obtained reverse channel signaling is put into a carrier wave to carry out signal transmission through a radio frequency receiving and transmitting antenna after modulation and D/A conversion; by changing the original reverse channel signaling and coding the embedded signaling domain of the reverse channel signaling based on QR coding, better communication quality can be realized in limited length, better performance characteristics are achieved, and the requirements of use scenes are met.
Further, the reverse channel signaling in the embodiment of the present disclosure includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, where 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, and the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, the second additional bit is used to carry a second symbol, the first symbol and the second symbol are respectively located at the head and tail ends of the reverse channel signaling to enhance transceiving stability, and the total duration of the reverse channel signaling is 12.5 ms. In addition, the 64-bit embedded signaling field includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error correction and detection protection, and the 28-bit valid bit information includes current service parameter information. In a specific implementation, as shown in fig. 7, the signaling frame structure in the embodiment of the present disclosure includes a reverse channel synchronization word (SYNC _48 BIT) of 48 BITs, an embedded signaling field of 64 BITs (two sides of RC _ L32 and RC _ R32, 32 BITs for the left and right sides of the synchronization word), and 8 additional BITs (symbols P at the beginning and the end, 4 BITs for the left and the right sides, respectively), where SYNC is a blank sequence, RC _32 is symmetrically distributed on both sides of SYNC, and symbols P are respectively supplemented at the beginning and the end of the frame structure, after symbol mapping is completed on an information BIT sequence of 112 BITs (embedded signaling field including the reverse channel synchronization word SYNC of 48 BITs +64 BITs), 1 symbol is supplemented on both sides, the first symbol copy is the first 4-BIT symbol in the information BIT sequence, and the second symbol copy is the last 4-BIT symbol in the information BIT sequence, that is, the symbol P is used for copying the first symbol and the last symbol in the information BIT sequence in actual use, the instability of the front and rear symbols during power switching can be avoided, and the transceiving stability is enhanced.
Optionally, the current service parameter includes current data type information, source address information, and destination address information. In a disclosed embodiment, the current service parameters further include information on whether the specified node can be reached, round number information, and hop number information to reach the specified node, the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, the information on whether the specified node can be reached is 2 bits, the round number information is 3 bits, and the hop number information to reach the specified destination node is 3 bits. In a specific implementation, referring to fig. 9, valid Data BITs based on current service parameters in the frame structure in the embodiment of the present disclosure may include current Data type information (refer to Data _ type, 4BIT in fig. 9), whether a specified interphone (refer to Link a, 2BIT in fig. 9) can be directly reached, round number information (refer to Token num, 3BIT in fig. 9) of a transmission Token, hop number information (refer to Jump num, 3BIT in fig. 9) of the specified interphone, Source Address information (refer to Source Address, 8BIT in fig. 9), and destination Address information (refer to destination Address, 8BIT in fig. 9).
Further, in an embodiment, obtaining valid data bits based on the current service parameters, and generating a matrix with multiple rows and multiple columns according to the valid data bits includes: obtaining 28 bit-specific bits based on the current traffic parameters; dividing the 28-bit effective bits into four rows, and expanding each row by using QR codes to obtain 16-bit data bits, wherein the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits; and generating a matrix with a plurality of rows and columns. As shown in fig. 8, the embedded signaling domain coding matrix is four rows, wherein each row comprises 7-bit bits and 9-bit check bits, the RC (27) -RC (21) of the first row, the RC (20) -RC (14) of the second row, the RC (13) -RC (7) of the third row, and the RC (6) -RC (0) of the fourth row are valid bits; QR (8) -QR (0) in each row are check bits.
It should be noted that, by encoding the embedded signaling domain by using QR code, the number of rows of the original embedded signaling domain is changed, the encoding matrix forms four rows, the effective bit is expanded, the effective bit is 28 bits, and the check bit is 36 bits, so that the problem that two rows of effective bits of the original structure are insufficient is solved, and the minimum effective bit length for realizing ad hoc network can be satisfied; the total time length of the new reverse channel signaling is 12.5ms, the number of bits is only increased by 2.5ms compared with the reverse channel signaling of the original protocol, no additional hardware is required to be changed, and the realization is easy; meanwhile, each row adopts QR coding to expand from 7BIT to 16BIT, 2BIT can be corrected, 5BIT can be detected, the performance is excellent, the check digit is within an acceptable range, and the performance is better than that of reverse channel signaling of the original protocol.
Further, in an embodiment, the obtaining the information bit sequence after performing interleaving processing on the matrix with multiple rows and multiple columns and configuring the synchronization word information includes:
interweaving the matrix with multiple rows and columns by utilizing an interweaving algorithm;
carrying out bit synthesis on the interlaced multi-row and multi-column matrix and the reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of the reverse channel synchronous word.
Here, the interleaving algorithm may use the existing interleaving algorithm of DMR to perform interleaving, for example, using an interleaver Index = Index × 33 module 64, in order to continue the interleaving algorithm using DMR: index x (n/2 + 1) module n, where 64 refers to the BIT length of 64BIT _ RC; of course, other algorithms that can implement the inventive concept may also be used to implement the interleaving processing in the embodiments of the present disclosure, and are not described herein again.
By adopting the frame structure of the reverse channel signaling, the effective bits of the embedded signaling domain are filled based on the current data type information, the source address information, the destination address information, the information whether the appointed node can be reached, the round number information, the hop number information reaching the appointed node and the like of the current service parameters, so that the effective bits are expanded, and the actual use requirement is met. Through the multiple data types defined in the new frame structure, under the direct mode of the talkback equipment, the realization of the service functions such as ad hoc network building, multi-hop forwarding and the like can be realized only by a plurality of talkback equipment without a base station and transfer platform equipment.
The following description will be made by applying the communication method of the embodiment of the present disclosure to an intercom device. Specifically, referring to fig. 5 and table 1, fig. 5 is a schematic diagram of a network topology in a usage scenario in an ad hoc network scheme, and table 1 is an optional example defined by an information unit in the present new reverse channel signaling.
In this scenario, a plurality of intercom devices may perform ad hoc networking through the above-mentioned reverse channel signaling. The method specifically comprises the following steps: the plurality of intercom devices fill the reverse channel signaling based on the current service parameters of the local devices, and sequentially send the reverse channel signaling in the time slot 2, and at the moment, the token type of the information unit in the reverse channel signaling is filled into 0000 (hereinafter referred to as a broadcast token), which is shown in table 1. In the mountaineering process, the positions of the A-F interphones are constantly changed, and the A-F interphones send broadcast tokens according to the sequence of 1-6; in the direct mode of the interphone, if the broadcast token is sent by A, B, C, D can receive the broadcast token sent by A; B. c, D, after receiving the broadcast token of A, analyzing the broadcast token, and writing the information of the source address, hop count and the like of the broadcast token into a local routing table; after the last F sends the broadcast token, the information of other interphones in the coverage range is recorded in the local routing tables of a-F, so as to form an ad hoc network, that is, the network topology structure diagram shown in fig. 3 is formed at this time. Here, since the a-F interphone positions are constantly changing, the network topology is also updated in real time. If the F needs to forward the service to the a, the plurality of intercom devices fill the reverse channel signaling based on the current service parameters of the local devices, and sequentially send the reverse channel signaling in the time slot 2, and at this time, the token type of the information unit in the reverse channel signaling is filled to 0001 (hereinafter referred to as forwarding request information), which is shown in table 1. And performing handshake in the F-E-D-A by using the forwarding request information to establish a forwarding path so as to realize the multi-hop forwarding request function. The implementation manners of other service types are similar, see table 1, and for example, the token type padding for ACK feedback information is 0110, and the token type padding for NACK feedback information is 0111, so that the reverse channel signaling in the embodiment of the present disclosure can meet the requirements of different usage scenarios, can improve the communication quality, and has good performance characteristics.
TABLE 1
As shown in fig. 10, an embodiment of the present disclosure further provides a first communication apparatus, where the apparatus 1000 includes: a first processing unit 1001, a second processing unit 1002, a third processing unit 1003, and a transmitting unit 1004; wherein the content of the first and second substances,
a first processing unit 1001, configured to obtain an effective data bit based on a current service parameter, and generate a multi-row and multi-column matrix according to the effective data bit, where each row in the multi-row and multi-column matrix includes a check bit generated based on a QR code;
a second processing unit 1002, configured to perform interleaving processing on the multiple rows and multiple columns of matrices and configure sync word information to obtain an information bit sequence;
a third processing unit 1003, configured to map at least one symbol at the beginning and the end of the information bit sequence, respectively, to obtain a reverse channel signaling with an embedded signaling field;
a transmitting unit 1004 for transmitting a signal based on the reverse channel signaling.
Further, the reverse channel signaling includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, the 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, the second additional bit is used to carry a second symbol, the first symbol and the second symbol are respectively located at the head and tail ends of the reverse channel signaling for enhancing transceiving stability, and the total duration of the reverse channel signaling is 12.5 ms; the 64-bit embedded signaling domain includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error correction and detection protection, and the 28-bit valid bit information includes current service parameter information.
Further, the current service parameters include current data type information, source address information, destination address information, information on whether the designated node can be reached, round number information, and hop number information reaching the designated node; the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, the information about whether the designated node can be reached is 2 bits, the round number information is 3 bits, and the hop number information reaching the designated node is 3 bits.
Further, the step of obtaining the information bit sequence after the second processing unit performs the interleaving processing on the matrix of the plurality of rows and the plurality of columns and configures the synchronization word information includes: interweaving the matrix with multiple rows and columns by utilizing an interweaving algorithm; carrying out bit synthesis on the interlaced multi-row and multi-column matrix and the reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of the reverse channel synchronous word.
Further, the step of the first processing unit obtaining effective data bits based on the current service parameters and generating a matrix with multiple rows and multiple columns according to the effective data bits includes: obtaining 28 bit-specific bits based on the current traffic parameters; dividing the 28-bit effective bits into four rows, and expanding each row by using QR codes to obtain 16-bit data bits, wherein the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits; and generating a matrix with a plurality of rows and columns.
In practical applications, the first processing unit 1001, the second processing unit 1002 and the third processing unit 1003 may be implemented by a signal processor in a communication device, and the transmitting unit 1004 may be a radio frequency transceiver module. It should be noted that, in the embodiment of the present disclosure, the communication apparatus sends the reverse channel signaling, where the reverse channel signaling is used to meet the usage requirement in a specific scenario, such as an ad hoc network establishment scenario, a multi-hop forwarding request, and the like, and meanwhile, the communication quality can be improved, and the communication apparatus has a good performance characteristic. The reverse channel signaling is the same as the reverse channel signaling principle used in the first communication method of the above-described disclosed embodiment, and is not repeated here.
It should be noted that: the above-mentioned apparatus provided in the above-mentioned embodiment is only exemplified by the division of the above-mentioned program modules when performing operations, and in practical applications, the above-mentioned processing distribution may be completed by different program modules according to needs, that is, the internal structure of the terminal is divided into different program modules to complete all or part of the above-mentioned processing. In addition, the above-mentioned apparatus provided by the above-mentioned embodiment belongs to the same concept as the above-mentioned method embodiment, and the detailed implementation process thereof is described in the method embodiment.
As shown in fig. 6, the embodiment of the present disclosure further provides a second communication method, which is applicable to a communication device on a receiving side, and the method includes:
step 601: acquiring a reverse channel signaling, and demodulating the acquired reverse channel signaling;
step 602: carrying out channel decoding on the demodulated reverse channel signaling, and extracting an information bit sequence in the reverse channel signaling;
step 603: and after the information bit sequence is subjected to de-interleaving processing and QR decoding processing, the effective data bit carried by the reverse channel signaling is obtained.
The embodiment of the disclosure realizes the realization of service functions such as ad hoc network establishment, multi-hop forwarding and the like based on the effective data bits by acquiring the effective data bits from the reverse channel signaling, meets the actual use requirements, can improve the communication quality, and has good performance characteristics. It should be noted that the reverse channel signaling used in the embodiment of the present disclosure is the same as the reverse channel signaling used in the first communication method of the above-mentioned embodiment, and is not repeated herein.
As shown in fig. 11, an embodiment of the present disclosure further provides a second communication apparatus, where the apparatus includes:
a receiving unit 1101, configured to acquire a reverse channel signaling and demodulate the acquired reverse channel signaling;
a first processing unit 1102, configured to perform channel decoding on the demodulated reverse channel signaling, and extract an information bit sequence in the reverse channel signaling;
a second processing unit 1103, configured to perform deinterleaving processing and QR decoding processing on the information bit sequence, and obtain an effective data bit carried by the reverse channel signaling.
The device of the embodiment of the disclosure realizes the realization of service functions such as ad hoc network establishment, multi-hop forwarding and the like based on the effective data bits by acquiring the effective data bits from the reverse channel signaling, meets the actual use requirements, can improve the communication quality, and has good performance characteristics. It should be noted that the reverse channel signaling used in the embodiment of the present disclosure is the same as the reverse channel signaling used in the first communication method of the above-mentioned embodiment, and is not repeated herein.
It should be noted that: the above-mentioned apparatus provided in the above-mentioned embodiment is only exemplified by the division of the above-mentioned program modules when performing operations, and in practical applications, the above-mentioned processing distribution may be completed by different program modules according to needs, that is, the internal structure of the terminal is divided into different program modules to complete all or part of the above-mentioned processing. In addition, the above-mentioned apparatus provided by the above-mentioned embodiment belongs to the same concept as the above-mentioned method embodiment, and the detailed implementation process thereof is described in the method embodiment.
The embodiment of the present disclosure further provides an intercom device, where the intercom device is configured to send or receive a reverse channel signaling, and the reverse channel signaling includes a reverse channel synchronization word, an embedded signaling field, and at least two symbols; wherein the content of the first and second substances,
the embedded signaling domains are symmetrically distributed on two sides of the reverse channel synchronous word; the embedded signaling domain comprises a valid bit and a check bit, the valid bit is used for carrying valid data bits, and the check bit is formed based on QR code extension;
the at least two symbols are respectively located at the head end and the tail end of the reverse channel signaling, so as to enhance the transceiving stability.
In an embodiment, the reverse channel signaling includes a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, the 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, the first additional bit is used for carrying a first symbol, the second additional bit is used for carrying a second symbol, the first symbol and the second symbol are respectively located at the head end and the tail end of the reverse channel signaling for enhancing transceiving stability, and the total duration of the reverse channel signaling is 12.5 ms.
In an embodiment, the 64-bit embedded signaling field includes 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error detection and correction protection, and the 28-bit valid bit information includes current service parameter information. Further, the embedded signaling domain coding matrix is four rows, each row is expanded by using a QR code to obtain 16-bit data bits, and the 16-bit data bits include 7-bit data bits and 9-bit check bits.
In one embodiment, the valid data bits include 4 bits of current data type information, 2 bits of information on whether a specified node can be reached, 3 bits of round number information, 3 bits of hop number information on reaching a specified destination node, 8 bits of source address information, and 8 bits of destination address information.
It should be noted that, in the embodiment of the present disclosure, the intercom device sends or receives a reverse channel signaling for communicating with other intercom devices, where the reverse channel signaling is used to meet usage requirements in a specific scenario, such as a scenario where ad hoc network is established, a multi-hop forwarding request is performed, and meanwhile, communication quality can be improved, and the performance characteristic is good. The reverse channel signaling is the same as the reverse channel signaling principle used in the first communication method of the above-described disclosed embodiment, and is not repeated here.
Based on the hardware implementation of the program modules, and in order to implement the method of the embodiments of the present disclosure, the embodiments of the present disclosure also provide an electronic device (computer device). Specifically, in one embodiment, the computer device may be a terminal, and its internal structure diagram may be as shown in fig. 12. The computer apparatus includes a processor a01, a network interface a02, a display screen a04, an input device a05, and a memory (not shown in the figure) connected through a system bus. Wherein processor a01 of the computer device is used to provide computing and control capabilities. The memory of the computer device comprises an internal memory a03 and a non-volatile storage medium a 06. The nonvolatile storage medium a06 stores an operating system B01 and a computer program B02. The internal memory a03 provides an environment for the operation of the operating system B01 and the computer program B02 in the nonvolatile storage medium a 06. The network interface a02 of the computer device is used for communication with an external terminal through a network connection. The computer program is executed by the processor a01 to implement the method of any of the above embodiments. The display screen a04 of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device a05 of the computer device may be a touch layer covered on the display screen, a button, a trackball or a touch pad arranged on a casing of the computer device, or an external keyboard, a touch pad or a mouse.
Those skilled in the art will appreciate that the architecture shown in fig. 12 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
The device provided by the embodiment of the present disclosure includes a processor, a memory, and a program stored in the memory and capable of running on the processor, and when the processor executes the program, the method of any one of the above embodiments is implemented.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transmyedia) such as modulated data signals and carrier waves.
It will be appreciated that the memory of embodiments of the disclosure may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present disclosure are intended to comprise, without being limited to, these and any other suitable types of memory.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (23)
1. A communication method applied to a communication apparatus on a transmission side, the method comprising:
obtaining effective data bits based on current service parameters, and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises check bits generated based on QR codes;
carrying out interleaving processing on the multiple rows and multiple columns of matrixes and configuring synchronous word information to obtain an information bit sequence;
mapping at least one symbol at the head end and the tail end of the information bit sequence respectively to obtain a reverse channel signaling with an embedded signaling domain;
transmitting a signal based on the reverse channel signaling.
2. The method of claim 1, wherein the reverse channel signaling comprises a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, the 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, and the 8-bit additional bits comprise a 4-bit first additional bit and a 4-bit second additional bit, wherein the first additional bit is used for carrying a first symbol, and the second additional bit is used for carrying a second symbol, and the first symbol and the second symbol are respectively located at the head end and the tail end of the reverse channel signaling for enhancing transceiving stability.
3. The method according to claim 2, wherein the 64-bit embedded signaling field contains 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error correction and detection protection, and the 28-bit valid bit information contains current service parameter information.
4. The method of claim 1, wherein the total duration of the reverse channel signaling is 12.5 ms.
5. The method of claim 1, wherein the current traffic parameters comprise current data type information, source address information, and destination address information.
6. The method according to claim 5, wherein the current traffic parameters further include information on whether a designated node can be reached, round number information, and hop count information to reach the designated node, the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, the information on whether the designated node can be reached is 2 bits, the round number information is 3 bits, and the hop count information to reach the designated destination node is 3 bits.
7. The method of claim 2, wherein interleaving the rows and columns of the matrix and configuring the sync word information to obtain an information bit sequence comprises:
interweaving the matrix with multiple rows and columns by utilizing an interweaving algorithm;
carrying out bit synthesis on the interlaced multi-row and multi-column matrix and the reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of the reverse channel synchronous word.
8. The method of claim 1, wherein obtaining valid data bits based on current traffic parameters, and generating a matrix of rows and columns from the valid data bits comprises:
obtaining 28 bit-specific bits based on the current traffic parameters;
dividing the 28-bit effective bits into four rows, and expanding each row by using QR codes to obtain 16-bit data bits, wherein the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits;
and generating a matrix with a plurality of rows and columns.
9. A communications apparatus, the apparatus comprising:
the first processing unit is used for obtaining effective data bits based on current service parameters and generating a multi-row and multi-column matrix according to the effective data bits, wherein each row in the multi-row and multi-column matrix comprises a check bit generated based on QR codes;
the second processing unit is used for carrying out interleaving processing on the multi-row and multi-column matrixes and configuring synchronous word information to obtain an information bit sequence;
a third processing unit, configured to map at least one symbol at the beginning and end of the information bit sequence, respectively, to obtain a reverse channel signaling with an embedded signaling domain;
and the transmitting unit is used for transmitting signals based on the reverse channel signaling.
10. The apparatus of claim 9, wherein the reverse channel signaling comprises a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, the 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, and the 8-bit additional bits include a 4-bit first additional bit and a 4-bit second additional bit, where the first additional bit is used to carry a first symbol, and the second additional bit is used to carry a second symbol, and the first symbol and the second symbol are respectively located at the beginning and the end of the reverse channel signaling for enhancing transceiving stability.
11. The apparatus of claim 10, wherein the 64-bit embedded signaling field contains 28-bit valid bit information and 36-bit check bit information, the 36-bit check bit information is used for error correction and detection protection, and the 28-bit valid bit information contains current service parameter information.
12. The apparatus of claim 9, wherein the total duration of the reverse channel signaling is 12.5 ms.
13. The apparatus of claim 9, wherein the current traffic parameters include current data type information, source address information, destination address information, information on whether a designated node can be reached, round number information, and hop number information for reaching the designated node; the current data type information is 4 bits, the source address information is 8 bits, the destination address information is 8 bits, the information about whether the designated node can be reached is 2 bits, the round number information is 3 bits, and the hop number information reaching the designated node is 3 bits.
14. The apparatus of claim 10, wherein the step of obtaining the information bit sequence after the second processing unit performs interleaving processing on the matrix with multiple rows and multiple columns and configures the synchronization word information comprises:
interweaving the matrix with multiple rows and columns by utilizing an interweaving algorithm;
carrying out bit synthesis on the interlaced multi-row and multi-column matrix and the reverse channel synchronous word to obtain an information bit sequence; the interlaced matrix of multiple rows and columns is divided into a first sequence and a second sequence, and the first sequence and the second sequence are symmetrically distributed on two sides of the reverse channel synchronous word.
15. The apparatus of claim 9, wherein the first processing unit obtains valid data bits based on the current service parameters, and the step of generating the matrix with multiple rows and multiple columns according to the valid data bits comprises:
obtaining 28 bit-specific bits based on the current traffic parameters;
dividing the 28-bit effective bits into four rows, and expanding each row by using QR codes to obtain 16-bit data bits, wherein the 16-bit data bits comprise 7-bit effective bits and 9-bit check bits;
and generating a matrix with a plurality of rows and columns.
16. A communication method applied to a communication apparatus on a reception side, the method comprising:
acquiring the reverse channel signaling sent by the method of any one of claims 1 to 8, and demodulating the acquired reverse channel signaling;
carrying out channel decoding on the demodulated reverse channel signaling, and extracting an information bit sequence in the reverse channel signaling;
and after the information bit sequence is subjected to de-interleaving processing and QR decoding processing, the effective data bit carried by the reverse channel signaling is obtained.
17. A communications apparatus, the apparatus comprising:
a receiving unit, configured to acquire the reverse channel signaling sent by the method according to any one of claims 1 to 8, and demodulate the acquired reverse channel signaling;
the first processing unit is used for carrying out channel decoding on the demodulated reverse channel signaling and extracting an information bit sequence in the reverse channel signaling;
and the second processing unit is used for performing de-interleaving processing and QR decoding processing on the information bit sequence to obtain the effective data bits carried by the reverse channel signaling.
18. An intercom device, wherein said intercom device transmits or receives reverse channel signaling for communicating with other intercom devices, said reverse channel signaling comprising a reverse channel synchronization word, an embedded signaling field, and at least two symbols; wherein the content of the first and second substances,
the embedded signaling domains are symmetrically distributed on two sides of the reverse channel synchronous word; the embedded signaling domain comprises a valid bit and a check bit, the valid bit is used for carrying valid data bits, and the check bit is formed based on QR code extension;
the at least two symbols are respectively located at the head end and the tail end of the reverse channel signaling, so as to enhance the transceiving stability.
19. The apparatus of claim 18, wherein the reverse channel signaling comprises a 48-bit reverse channel synchronization word, a 64-bit embedded signaling field, and 8-bit additional bits, the 64-bit information of the embedded signaling field is symmetrically distributed on both sides of the reverse channel synchronization word, and the 8-bit additional bits comprise a 4-bit first additional bit and a 4-bit second additional bit, wherein the first additional bit is used for carrying a first symbol, and the second additional bit is used for carrying a second symbol, and the first symbol and the second symbol are respectively located at the beginning and the end of the reverse channel signaling for enhancing transceiving stability.
20. The apparatus of claim 18, wherein the total duration of the reverse channel signaling is 12.5 ms.
21. The apparatus of claim 18, wherein the embedded signaling domain coding matrix is four rows, each row being extended with QR code to obtain 16-bit data bits, the 16-bit data bits comprising 7-bit data bits and 9-bit check bits.
22. An electronic device, comprising: a processor and a memory for storing a computer program capable of running on the processor; wherein the content of the first and second substances,
the processor is adapted to perform the steps of the method of any one of claims 1 to 8 and/or the steps of the method of claim 16 when running the computer program.
23. A storage medium having a computer program stored thereon, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the method of any one of claims 1 to 8 and/or the steps of the method of claim 16.
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