CN113098807A - Channel grouping multiplexing method based on multiple modulation modes and communication equipment - Google Patents
Channel grouping multiplexing method based on multiple modulation modes and communication equipment Download PDFInfo
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- CN113098807A CN113098807A CN202110346593.7A CN202110346593A CN113098807A CN 113098807 A CN113098807 A CN 113098807A CN 202110346593 A CN202110346593 A CN 202110346593A CN 113098807 A CN113098807 A CN 113098807A
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- 238000004891 communication Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004590 computer program Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
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Abstract
The invention provides a channel grouping multiplexing method and communication equipment based on multiple modulation modes, relates to the technical field of communication, and solves the technical problems that in wireless communication, a modulation mode is generally adopted to multiplex a communication frequency band, the channel utilization rate is low, and the communication efficiency is influenced. The method comprises the following steps: selecting a free communication frequency band; dividing the communication frequency band into a plurality of channels according to the bandwidth; forming at least two groups of the channels according to different modulation modes; and the communication node selects the matched grouping to carry out communication according to the requirement characteristics of the node. The communication nodes of the invention can be flexibly grouped according to the needs, and the number of channels is increased in multiple after being grouped according to the modulation mode, thereby improving the communication efficiency. The data of the communication nodes are transmitted on more channels, the communication data amount borne by each channel is reduced, and the probability of collision is reduced, so that the communication efficiency is effectively improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a channel grouping multiplexing method and a communication device based on multiple modulation schemes.
Background
In wireless communication, free communication bands (such as 470-510MHz/779-787MHz) are a valuable resource. In practical applications, a frequency band is usually divided into a plurality of channels, data transmission and reception of nodes participating in communication need to be performed on a certain channel, in principle, the same channel can communicate with each other, communication cannot be performed on different channels, and meanwhile, adjacent channels do not interfere with each other. The number of available subchannels into which a frequency band is divided is always limited due to limitations of certain conditions, which limits the communication efficiency and also limits the size of the wireless communication network. By adopting a plurality of different modulation modes, the originally divided channels are multiplexed and expanded under different modulation modes, thereby more fully and reasonably using precious frequency band resources, improving the communication efficiency and creating conditions for enlarging the scale of a communication network. Most communication terminals support multiple modulation schemes.
The applicant has found that the prior art has at least the following technical problems:
in wireless communication, a modulation scheme is generally adopted to multiplex a communication frequency band, so that the channel utilization rate is low, and the communication efficiency is also influenced.
Disclosure of Invention
The invention aims to provide a channel grouping multiplexing method and communication equipment based on multiple modulation modes, and aims to solve the technical problems that in the prior art, in wireless communication, a modulation mode is generally adopted to multiplex a communication frequency band, the channel utilization rate is low, and the communication efficiency is influenced. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a channel grouping multiplexing method based on multiple modulation modes, which is used for communication between communication nodes and comprises the following steps:
s100: selecting a free communication frequency band;
s200: dividing the communication frequency band into a plurality of channels according to the bandwidth;
s300: forming at least two groups of the channels according to different modulation modes;
s400: and the communication node selects the matched grouping to carry out communication according to the requirement characteristics of the node.
Optionally, the number of channels is 9.
Optionally, the bandwidths of the channels are the same.
Optionally, the bandwidth of the channels is different.
Optionally, the number of said packets is three.
Optionally, the packets are FSK channel group, OFDM channel group and QPSK channel group, respectively.
Optionally, the groups are respectively an MR-FSK channel group, an MR-OFDM channel group and an MR-O-QPSK channel group.
A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the above methods when executing the program.
Any technical scheme can at least produce the following technical effects:
the channel grouping multiplexing method based on multiple modulation modes provided by the invention has the advantage that the communication nodes can flexibly group according to the needs. After grouping according to the modulation mode, the number of channels is increased in multiple, and the communication efficiency is improved. The data of the communication nodes are transmitted on more channels, the communication data amount borne by each channel is reduced, and the probability of collision is reduced, so that the communication efficiency is effectively improved. Through channel multiplexing grouping, the number of channels is multiplied, the channels are also diversified in function, each channel group adopts different modulation modes, parameters such as communication speed, transmission distance, energy consumption and the like of each group are different, and communication nodes can be arranged in different channel groups according to actual requirements to complete related tasks.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a first flowchart of a channel grouping multiplexing method based on multiple modulation modes according to the present invention;
fig. 2 is a second flowchart of the channel grouping multiplexing method based on multiple modulation schemes according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a channel grouping multiplexing method based on multiple modulation modes, which is used for communication between communication nodes, and comprises the following steps as shown in figures 1-2:
s100: selecting a free communication frequency band; for example, in ISM Band (Industrial Scientific Medical Band), chinese means Industrial, Scientific and Medical respectively, and means that a certain Band is moved by each country and is mainly opened for Industrial, Scientific and Medical institutions. The frequency bands are applied without license or cost, for example, 2.4GHz used by wireless networks such as a wireless local area network, Bluetooth and ZigBee is a common ISM frequency band of each country, only certain transmitting power is required to be observed, and interference to other frequency bands is not required; the specific communication frequency band can be selected according to the use requirement;
s200: dividing a communication frequency band into a plurality of channels according to the bandwidth, wherein the channels are transmission media of communication signals, the specific number of the channels is set according to the use requirement, the plurality of channels are used for realizing grouping multiplexing, and meanwhile, isolation zones are arranged among the channels to avoid mutual interference of the signals transmitted in the channels;
s300: forming at least two groups of channels according to different modulation modes; grouping according to a modulation mode, wherein the grouping is different from the existing Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM), and the grouped same channel adopts the same modulation mode to transmit data; the divided plurality of channels are redistributed to each group, so that the multiplexing of the channels in different debugging modes is realized, and the number of the channels is expanded through multiplexing;
s400: and the communication node selects the matched grouping to carry out communication according to the requirement characteristics of the node.
The sending end and the receiving end of the communication node usually support a plurality of modulation modes, and the communication node can flexibly group according to the requirement by the channel grouping multiplexing method based on the plurality of modulation modes. After grouping according to the modulation mode, the number of channels is increased in multiple, and the communication efficiency is improved. The data of the communication nodes are transmitted on more channels, the communication data amount borne by each channel is reduced, and the probability of collision is reduced, so that the communication efficiency is effectively improved. Through channel multiplexing grouping, the number of channels is multiplied, the channels are also diversified in function, each channel group adopts different modulation modes, parameters such as communication speed, transmission distance, energy consumption and the like of each group are different, and communication nodes can be arranged in different channel groups according to actual requirements to complete related tasks.
As an alternative embodiment, the number of channels is 9, and the number of channels may also be selected from other numbers according to needs, which are not illustrated here.
As an alternative implementation, the channels have the same bandwidth, and grouping the channels with the same bandwidth is easier to implement and better performs channel management.
As an alternative implementation, the bandwidths of the channels are different, different channel bandwidths can adapt to the special needs of part of the communication nodes, and the division of wider channels can adapt to the needs of part of the high-speed transmission.
As an alternative implementation, the number of packets is 3, and the number of 3 packets is suitable, which can satisfy the modulation schemes supported by most communication terminals.
As an optional implementation manner, the packets are FSK channel groups (Frequency Shift Keying, which has the main advantages of being easy to implement, good in noise and attenuation resistance, and widely applied to medium and low speed data transmission, and most commonly, a dual-Frequency FSK system using two frequencies to carry binary 1 and binary 0), an OFDM channel group (Orthogonal Frequency Division Multiplexing, for parallel transmission of high speed serial data, which has good multipath fading resistance, can support multi-user access, and is a multi-carrier transmission scheme with the lowest complexity and the widest application) and a QPSK (Quadrature Phase Shift Keying, which has good noise resistance and Frequency band utilization, and is widely applied to communication services such as digital trunking, etc.) channel groups. These three modulation schemes are the existing mainstream modulation schemes, and many communication terminals can be supported, thereby having wide applicability.
As an alternative embodiment, the packets are respectively MR-FSK channel group, MR-OFDM channel group and MR-O-QPSK channel group, MR (Multi-Band), thereby forming group a: a MR-FSK channel group; group B: a MR-OFDM channel group; group C: a MR-O-QPSK channel group, the channels are grouped into 3, the number of channels is 9, thus forming a total of 27 channels; the three multiband modulation technologies are upgraded on the basis of FSK, OFDM and QPSK modulation technologies, have the characteristics of high data throughput, low power spectral density, strong multipath resistance and the like, and can be better applied to high-speed short-distance wireless communication, such as the fields of wireless personal area networks, wireless multimedia interfaces, radar detection, accurate positioning, medical imaging and the like.
A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the inventive method are implemented when the processor executes the program. By the communication equipment provided by the invention, the communication nodes can be flexibly grouped according to the needs. After grouping according to the modulation mode, the number of channels is increased in multiple, and the communication efficiency is improved. The number of channels is multiplied by multiplexing and grouping the channels, the channels are diversified in function, and communication nodes can flexibly select different grouping channels to complete communication tasks according to different task requirement characteristics.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A channel grouping multiplexing method based on multiple modulation modes is used for communication between communication nodes, and is characterized by comprising the following steps:
s100: selecting a free communication frequency band;
s200: dividing the communication frequency band into a plurality of channels according to the bandwidth;
s300: forming at least two groups of the channels according to different modulation modes;
s400: and the communication node selects the matched grouping to carry out communication according to the requirement characteristics of the node.
2. The method according to claim 1, wherein the number of channels is 9.
3. The method according to claim 1, wherein the channels have the same bandwidth.
4. The method according to claim 1, wherein the channels have different bandwidths.
5. The method according to claim 1, wherein the number of the packets is 3.
6. The method according to claim 1, wherein the packets are FSK channel group, OFDM channel group and QPSK channel group.
7. The method according to claim 1, wherein the packets are respectively MR-FSK channel group, MR-OFDM channel group and MR-O-QPSK channel group.
8. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1-7 are implemented when the program is executed by the processor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827903A (en) * | 2022-06-14 | 2022-07-29 | 吉林大学 | Positioning method and system based on LoRa SX1280 channel multiplexing |
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| CN101278513A (en) * | 2005-11-04 | 2008-10-01 | 英特尔公司 | System and method for improved data throughput in a wireless network |
| CN103416014A (en) * | 2011-03-04 | 2013-11-27 | 高通股份有限公司 | Adaptive packet based modulation and coding rate selection based for wide bandwidth data transmissions |
| CN105450261A (en) * | 2015-12-04 | 2016-03-30 | 国网浙江省电力公司绍兴供电公司 | Wide-band communication method with high anti-interference performance for medium-voltage power distribution network underground power line |
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- 2021-03-31 CN CN202110346593.7A patent/CN113098807A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278513A (en) * | 2005-11-04 | 2008-10-01 | 英特尔公司 | System and method for improved data throughput in a wireless network |
| CN103416014A (en) * | 2011-03-04 | 2013-11-27 | 高通股份有限公司 | Adaptive packet based modulation and coding rate selection based for wide bandwidth data transmissions |
| CN105450261A (en) * | 2015-12-04 | 2016-03-30 | 国网浙江省电力公司绍兴供电公司 | Wide-band communication method with high anti-interference performance for medium-voltage power distribution network underground power line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114827903A (en) * | 2022-06-14 | 2022-07-29 | 吉林大学 | Positioning method and system based on LoRa SX1280 channel multiplexing |
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