CN108337077A - Data transmission method and Wireless Heterogeneous Networks system - Google Patents
Data transmission method and Wireless Heterogeneous Networks system Download PDFInfo
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- CN108337077A CN108337077A CN201711437408.5A CN201711437408A CN108337077A CN 108337077 A CN108337077 A CN 108337077A CN 201711437408 A CN201711437408 A CN 201711437408A CN 108337077 A CN108337077 A CN 108337077A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of data transmission methods and Wireless Heterogeneous Networks system.Four different data frames are arranged in this method, wherein the first data frame is only made of signaling field, other data frames are made of signaling field and payload field, and all signaling fields are modulated using the first modulation system, and the modulation system modulation of different modulating rate is respectively adopted in three payload fields.When sending communication data, the first data frame is received and dispatched in the first frequency range, communication data is carried in signaling field；The second data frame is received and dispatched in the second frequency range or third data frame, communication data are carried in payload field；The 4th data frame is received and dispatched in third frequency range, communication data is carried in payload field.First frequency range is more than the second frequency range, and the second frequency range is more than third frequency range.The present invention can provide data structure identical data frame in different frequency ranges, realize the Unified Communication in network-wide basis.
Description
Technical field
The present invention relates to wireless communication technology field, especially a kind of data transmission method and Wireless Heterogeneous Networks system.
Background technology
With mobile Internet and Internet of Things rise and flourish, communication is logical from simple interpersonal voice
Letter, develops to the communication between people and object, object and people, object and object, and short distance and low-rate wireless communication also highlight demand, and
The attribute and type of distinct device are more, and the scope and difficulty of telecommunication management are larger.In order to adapt to the demand of different communication application,
Different communication protocol, the communication system of different data structure are combined together by people by different methods, form heterogeneous network, and
The wireless communication networks established using various wireless communication agreement and various wireless communication data structure are exactly traditional wireless isomer
Net.
However, traditional wireless isomer network needs communication equipment while supporting wireless communications mode and standard, which increase
The difficulty of technological development and the overlapping investment for causing development capital, various wireless communication pattern and standard will occupy respective frequency
Section wastes crowded already frequency resource originally, and when different systems uses similar frequency range, can also cause mutually dry
It disturbs.More outstanding to be, different wireless communications modes and standard is required to establish oneself independent communication equipment, such as channel radio
Believe base station and radio communications gateway equipment, the input and construction that this large area repeats can cause the very big wave of resource and fund
Take.
Invention content
The technical problem to be solved by the present invention is to：In view of the above problems, provide a kind of data transmission method and
Wireless Heterogeneous Networks system can provide data structure identical data frame in different frequency ranges, realize in network-wide basis
Unified Communication.
A kind of technical solution that the present invention uses is to provide a kind of data transmission method, the method includes：Setting first
Data frame, the second data frame, third data frame and the 4th data frame, second data frame, the third data frame and described
4th data frame is made of signaling field and payload field, and first data frame is only made of signaling field, and described first
Data frame, second data frame, the third data frame and the 4th data frame signaling field be all made of the first modulation
Mode is modulated, and the payload field of second data frame is modulated using first modulation system, the load of the third data frame
Lotus field is modulated using the second modulation system, and the payload field of the 4th data frame is modulated using third modulation system, described
The modulation rate of first modulation system is less than second modulation system, and the modulation rate of second modulation system is less than described
Third modulation system；When sending communication data, the first data frame is received and dispatched in the first frequency range, the communication data is carried on institute
In the signaling field for stating the first data frame；Second data frame or the third data frame are received and dispatched in the second frequency range, it is described
Communication data is carried in the payload field of second data frame or the third data frame；In the 4th frequency range described in transmitting-receiving
4th data frame, the communication data are carried in the payload field of the 4th data frame；Wherein, first frequency range is more than
Second frequency range, second frequency range are more than the third frequency range.
Wherein, first modulation system is FSK modulation, and second modulation system is modulated for DPSK, the third tune
Mode processed is QAM modulation.
Wherein, first frequency range is 2.40-2.48GHz, and second frequency range is 1.22-1.30GHz, the third frequency
Section is 620-700MHz.
Wherein, first data frame, second data frame, the third data frame or the 4th data are being received and dispatched
When frame, the bandwidth of the communication data is calculated, if the bandwidth is less than first threshold, by first data frame, described the
The frame length of two data frames, the third data frame or the 4th data frame is set as first time length；If the bandwidth exists
Between the first threshold and second threshold, by first data frame, second data frame, the third data frame or institute
The frame length for stating the 4th data frame is set as the second time span；If the band is wider than the second threshold, described first is counted
It is set as third time span according to the frame length of frame, second data frame, the third data frame or the 4th data frame；Its
In, the first threshold be less than the second threshold, the first time length be less than second time span, described second
Time span is less than the third time span.
Wherein, the first time length is unit time span, and second time span is unit time span
Three times, the third time span is five times of unit time span, and the unit interval length is 325uS.
Wherein, the receipts of first data frame, second data frame, the third data frame and the 4th data frame
Hair interval is no less than 300us.
Wherein, the signaling field of first data frame includes 128 bit switch data informations, for controlling the communication
The transmission and encryption of data.
The another technical solution that the present invention uses is to provide a kind of Wireless Heterogeneous Networks system, the Wireless Heterogeneous Networks
System includes the first equipment, the second equipment and third equipment, and the Wireless Heterogeneous Networks system is using the first data frame, the second number
According to frame, third data frame and the 4th data frame, second data frame, the third data frame and the 4th data frame by
Signaling field and payload field composition, first data frame are only made of signaling field, first data frame, described second
The signaling field of data frame, the third data frame and the 4th data frame is all made of the modulation of the first modulation system, and described the
The payload field of two data frames is modulated using first modulation system, and the payload field of the third data frame is adjusted using second
Mode processed is modulated, and the payload field of the 4th data frame is modulated using third modulation system, the tune of first modulation system
Rate processed is less than second modulation system, and the modulation rate of second modulation system is less than the third modulation system,
In, between first equipment and second equipment when sending communication data, first equipment or second equipment
The first data frame is received and dispatched in the first frequency range, the communication data is carried in the signaling field of first data frame；It is different
Second equipment between when sending communication data, second equipment receives and dispatches second data in the second frequency range
Frame, the communication data are carried in the payload field of second data frame；Second equipment and the third equipment it
Between when sending communication data, second equipment or the third equipment receive and dispatch the third data frame in the second frequency range,
The communication data is carried in the payload field of the third data frame；Communication is being sent between the different third equipment
When data, the third equipment receives and dispatches the 4th data frame in the 4th frequency range, and the communication data is carried on the described 4th
In the payload field of data frame.
Wherein, first modulation system is FSK modulation, and second modulation system is modulated for DPSK, the third tune
Mode processed is QAM modulation；First frequency range is 2.40-2.48GHz, and second frequency range is 1.22-1.30GHz, described the
Three frequency ranges are 620-700MHz.
Wherein, first equipment, the second equipment or third equipment are receiving and dispatching first data frame, second data
When frame, the third data frame or four data frame, first equipment, the second equipment or third equipment calculate described logical
The bandwidth of letter data, if the bandwidth is less than first threshold, by first data frame, second data frame, described the
The frame length of three data frames or the 4th data frame is set as first time length；If the bandwidth is in the first threshold and
Between two threshold values, by first data frame, the frame of second data frame, the third data frame or the 4th data frame
Length is set as the second time span；If the band is wider than the second threshold, by first data frame, second data
The frame length of frame, the third data frame or the 4th data frame is set as third time span；Wherein, the first threshold is less than
The second threshold, the first time length are unit time span, and second time span is unit time span
Three times, the third time span is five times of unit time span, and the unit interval length is 325uS, first number
It is no less than 300us according to the transmitting-receiving interval of frame, second data frame, the third data frame and the 4th data frame.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：By the way that four data are arranged
Frame, wherein the first data frame only includes signaling field, the modulation system of the payload field of other data frames is different, but four data
The data structure of frame is identical, and four data frames correspond to the first frequency range, the second frequency range and third frequency range and received and dispatched to send respectively
Communication data realizes the unification in network-wide basis so as to provide data structure identical data frame in different frequency ranges
Communication, and implement it is simple, of low cost, conducive to promoting, be widely used, can be communication industry's chain upstream and downstream bring it is new
Point of economic increase, the demand for people to information provide comprehensive, different levels integrated services.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of flow diagram of embodiment of data transmission method provided by the invention.
Fig. 2 is the structural schematic diagram of the data frame of data transmission method setting provided by the invention.
Fig. 3 is the schematic diagram of transceiving data frame in data transmission method provided by the invention.
Fig. 4 is a kind of composition schematic diagram of embodiment of Wireless Heterogeneous Networks system provided by the invention.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
.
As shown in Figure 1, being a kind of flow diagram of embodiment of data transmission method provided by the invention.Transmission side data
Method includes the following steps：
S11：First data frame, the second data frame, third data frame and the 4th data frame, the second data frame, third are set
Data frame and the 4th data frame are made of signaling field and payload field, and the first data frame is only made of signaling field, and first
Data frame, the second data frame, third data frame and the 4th data frame signaling field be all made of the modulation of the first modulation system, second
The payload field of data frame is modulated using the first modulation system, and the payload field of third data frame uses the second modulation system tune
The payload field of system, the 4th data frame is modulated using third modulation system, and the modulation rate of the first modulation system is less than second and adjusts
The modulation rate of mode processed, the second modulation system is less than third modulation system.
S12：When sending communication data, the first data frame is received and dispatched in the first frequency range, communication data is carried on the first number
According in the signaling field of frame；The second data frame or third data frame are received and dispatched in the second frequency range, communication data is carried on the second number
According in the payload field of frame or third data frame；The 4th data frame is received and dispatched in the 4th frequency range, communication data is carried on the 4th number
According in the payload field of frame；Wherein, the first frequency range is more than the second frequency range, and the second frequency range is more than third frequency range.
In the present embodiment, the first modulation system is modulated for FSK (Frequency shift keying, frequency shift keying),
Second modulation system is modulated for DPSK (Differential Phase Shift Keying, differential phase-shift keying (DPSK)), third modulation
Mode is modulated for QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation).Wherein, the speed of FSK modulation
Rate is smaller, can be used for transmitting position data, and the Mean Speed of each data channel reaches 140kb/s after modulation, can meet wireless
The service applications such as VOIP (Voice over Internet Protocol, the networking telephone) phone, short message, multimedia message, mail are wanted
It asks.The modulation rate of DPSK modulation is more than FSK modulation, and the Mean Speed of each data channel reaches 3mb/s after modulation, can meet
The requirement of the service applications such as broadband data transmission and video communication.The modulation rate of QAM modulation is modulated more than DPSK, every after modulation
The maximum rate of a data channel can reach 20mb/s, can meet the business such as ultra-wideband data transmission and HD video communication and answer
It is required that, it is preferable that payload field is modulated using 8DPSK modes, i.e., sampling point number is 8.Preferably, payload field uses
32QAN modes are modulated, i.e., sampling point number is 32.A symbol in 32QAM carries the information of 5bit, thus with very high
The availability of frequency spectrum is suitble to the modulating/demodulating technology of varying environment modulation and rate-compatible.
First frequency range is 2.40-2.48GHz, and the second frequency range is 1.22-1.30GHz, and third frequency range is 620-700MHz.Its
In, the first frequency range, the second frequency range and third frequency range can be divided into 79 carrier frequency channels, and each carrier frequency channel is divided into 7 again
A data channel.
Shown in Fig. 2, the first data frame uses data frame A, is only made of signaling field, without including load word
Section.And the second data frame, third data frame and the 4th data frame are all made of data frame B, only the modulation system of payload field is not
Equally.The data structure of second data frame, third data frame and the 4th data frame belongs to the standard of Bluetooth protocol, and the first data
Frame is not due to having payload field, so not in the standard that Bluetooth protocol defines, but the data structure of signaling field and bluetooth
The structure of protocol definition is identical, so can be mutually compatible with Bluetooth protocol.
Optionally, the data transmission method of the present embodiment further includes：Receiving and dispatching the first data frame, the second data frame, third
When data frame or four data frames, the bandwidth of communication data is calculated, if bandwidth is less than first threshold, by the first data frame, the
The frame length of two data frames, third data frame or the 4th data frame is set as first time length；If bandwidth is in first threshold and
Between two threshold values, it is long that the frame length of the first data frame, the second data frame, third data frame or the 4th data frame was set as the second time
Degree；If band is wider than second threshold, by the first data frame, the frame length of the second data frame, third data frame or the 4th data frame
It is set as third time span；Wherein, first threshold be less than second threshold, first time length be less than the second time span, second
Time span is less than third time span.Preferably, first time length is unit time span, and the second time span is unit
Three times of time span, third time span are five times of unit time span, and unit interval length is 325uS.First data
Frame, the second data frame, third data frame and the 4th data frame transmitting-receiving interval be no less than 300us.
It is the schematic diagram of transceiving data frame in data transmission method provided by the invention incorporated by reference to referring to Fig. 3.With in figure
For the transmitting-receiving of one data frame, the communication pattern of the first data frame is that (Time Division Duplexing, time-division are double by TDD
Work) pattern, in figure the transmitting-receiving of the first data frame be preferably spaced 300us.According to Maxwell equation groups, electromagnetic wave propagation speed
Degree should be (eu) ^ (- 1/2), and e is dielectric constant in formula, and u is magnetic conductivity, and to different mediums, e with u values are different, for vacuum,
E=8.85*10^-12, u=2pi*10^-7 (International System of Units), then velocity of electromagnetic wave is about 3*10^8m/s's in vacuum at this time
Approximation, according to the definition of General Conference of Weights and Measures, the exact value of velocity of electromagnetic waves should be 299 792 458m/s in vacuum, therefore every
The propagation distance of 3uS is about 1km, and 300uS can guarantee the electromagnetic wave propagation distance for theoretically far reaching nearly 100km, the period
There are enough delay times to ensure the Hopping frequencies conversion time of 1,600 jumps/s that Bluetooth protocol defines.Wherein, the unit interval
Length is 325us, and as shown in the figure, the time span of first data frame of transmission is 325us, and first data received
The time span of frame is 3*325us, and the time span of the second bluetooth data frame of transmission is 5*325us, it is seen then that this implementation
Example heterogeneous wireless network system can dynamically, the different transmission bandwidth of communicating pair is offered on-demand.Further, optional
The frame head on ground, the data frame received has the capture window of no less than 10us, which can effectively capture remote and high speed and move
Dynamic delay time signal.
Optionally, the signaling field of the first data frame includes 128 bit switch data informations, for controlling communication data
Transmission and encryption.Wherein, due to the switch data information of increase by 128 in signaling field, switch data information can be used as and open
It closes data and protection is encrypted, and switch data information only has 128, data volume is few, so the biography of data can either be controlled
Defeated and encryption, and the wireless transmission of payload field can be reduced simultaneously, the total power consumption of wireless data transmission can be greatlyd save
Amount saves energy consumption.
The data transmission method of the embodiment of the present invention is communicated by using unified data frame, can make various bands
Wide data carry out effective Unified Communication in different frequency ranges, so as to provide data structure phase in different frequency ranges
With data frame, realize the Unified Communication in network-wide basis, and implement it is simple, of low cost, conducive to promoting, be widely used,
New growth engines can be brought for the upstream and downstream of communication industry's chain, the demand for people to information provides comprehensive, different
The integrated service of level.
As shown in figure 4, being a kind of composition schematic diagram of embodiment of Wireless Heterogeneous Networks system provided by the invention.It is wireless different
Structure network system includes the first equipment 21, the second equipment 22 and third equipment 23.The Wireless Heterogeneous Networks system is using the first number
According to frame, the second data frame, third data frame and the 4th data frame, the second data frame, third data frame and the 4th data frame by
Signaling field and payload field composition, the first data frame are only made of signaling field, the first data frame, the second data frame, third
The signaling field of data frame and the 4th data frame is all made of the modulation of the first modulation system, and the payload field of the second data frame is using the
One modulation system is modulated, and the payload field of third data frame is modulated using the second modulation system, the payload field of the 4th data frame
It is modulated using third modulation system, the modulation rate of the first modulation system is less than the second modulation system, the tune of the second modulation system
Rate processed is less than third modulation system.In the present embodiment, the first modulation system is FSK modulation, and the second modulation system is DPSK
Modulation, third modulation system are QAM modulation.First frequency range is 2.40-2.48GHz, and the second frequency range is 1.22-1.30GHz, third
Frequency range is 620-700MHz.Wherein, the rate of FSK modulation is smaller, can be used for transmitting position data, each data channel after modulation
Mean Speed reach 140kb/s, the requirement of the service applications such as Wireless VOIP phone, short message, multimedia message, mail can be met.DPSK
The modulation rate of modulation is more than FSK modulation, and the Mean Speed of each data channel reaches 3mb/s after modulation, can meet broadband number
According to the requirement of the service applications such as transmission and video communication.The modulation rate of QAM modulation is modulated more than DPSK, each data after modulation
The maximum rate of channel can reach 20mb/s, can meet wanting for the service applications such as ultra-wideband data transmission and HD video communication
It asks, it is preferable that payload field is modulated using 8DPSK modes, i.e., sampling point number is 8.Preferably, payload field uses 32QAN
Mode is modulated, i.e., sampling point number is 32.A symbol in 32QAM carries the information of 5bit, thus has very high frequency spectrum
Utilization rate is suitble to the modulating/demodulating technology of varying environment modulation and rate-compatible.First frequency range be 2.40-2.48GHz, second
Frequency range is 1.22-1.30GHz, and third frequency range is 620-700MHz.Wherein, the first frequency range, the second frequency range and third frequency range
To be divided into 79 carrier frequency channels, each carrier frequency channel is divided into 7 data channels again.The Wireless Heterogeneous Networks system can provide
Most 79 carrier frequency channels, each carrier frequency channel can provide 7 data channels, then Wireless Heterogeneous Networks system shares 553 numbers
It is believed that road.When constituting base station using the Wireless Heterogeneous Networks system, each base station can be made of 1 to 11 or 12 carrier frequency channels,
Namely each base station can have 7 to 77 or 84 data channels to constitute, so as to carry out channeling by honeycomb,
The base station geographically separated, so that it may micro- to meet to realize channeling by reusing identical frequency or group of frequencies
Networking of the type Internet of Things to extensive, intensive large capacity public wireless communication.
Between first equipment 21 and the second equipment 22 when sending communication data, the first equipment 21 or the second equipment 22 are
The first data frame is received and dispatched in one frequency range, communication data is carried in the signaling field of the first data frame.
Between the second different equipment 22 when sending communication data, the second equipment 22 receives and dispatches the second number in the second frequency range
According to frame, communication data is carried in the payload field of the second data frame.
Between second equipment 22 and third equipment 23 when sending communication data, the second equipment 22 or third equipment 23 are
Third data frame is received and dispatched in two frequency ranges, communication data is carried in the payload field of third data frame.
Between different third equipment 23 when sending communication data, third equipment receives and dispatches the 4th data in the 4th frequency range
Frame, communication data are carried in the payload field of the 4th data frame.
Optionally, the first equipment 21, the second equipment 22 or third equipment 23 receive and dispatch the first data frame, the second data frame,
When third data frame or four data frames, the first equipment 21, the second equipment 22 or third equipment 23 calculate the bandwidth of communication data,
If bandwidth is less than first threshold, the frame length of the first data frame, the second data frame, third data frame or the 4th data frame is set as
First time length；If bandwidth is between first threshold and second threshold, by the first data frame, the second data frame, third number
It is set as the second time span according to the frame length of frame or the 4th data frame；If band is wider than second threshold, by the first data frame, second
The frame length of data frame, third data frame or the 4th data frame is set as third time span；Wherein, first threshold is less than the second threshold
Value, first time length are unit time span, and the second time span is three times of unit time span, and third time span is
Five times of unit interval length, unit interval length are 325uS, the first data frame, the second data frame, third data frame and the 4th
The transmitting-receiving interval of data frame is no less than 300us.Wherein, the first data frame, the second data frame, third data frame and the 4th data frame
Communication pattern be tdd mode.According to Maxwell equation groups, electromagnetic wave propagation speed should be (eu) ^ (- 1/2), and e is in formula
Dielectric constant, u are magnetic conductivity, and to different mediums, e with u values are different, for vacuum, e=8.85*10^-12, u=2pi*10
^-7 (International System of Units), the then approximation that velocity of electromagnetic wave is about 3*10^8m/s in vacuum at this time, according to General Conference of Weights and Measures
Definition, the exact value of velocity of electromagnetic waves should be 299 792 458m/s in vacuum, therefore the propagation distance per 3uS is about 1km, and
300uS can guarantee that the electromagnetic wave propagation distance for theoretically far reaching nearly 100km, the period have enough delay times to ensure indigo plant
The Hopping frequencies conversion time of 1,600 jumps of tooth protocol definition/s.Optionally, the first equipment 21, the second equipment 22 or third are set
The frame head of standby 23 data frames received has the capture window of no less than 10us, the capture window that can effectively capture remote and high speed and move
Dynamic delay time signal.
Optionally, the signaling field of the first data frame includes 128 bit switch data informations, for controlling communication data
Transmission and encryption.Wherein, due to the switch data information of increase by 128 in signaling field, switch data information can be used as and open
It closes data and protection is encrypted, and switch data information only has 128, data volume is few, so the biography of data can either be controlled
Defeated and encryption, and the wireless transmission of payload field can be reduced simultaneously, the total power consumption of wireless data transmission can be greatlyd save
Amount saves energy consumption.
In the present embodiment, the first equipment 21 in Wireless Heterogeneous Networks system and the second equipment 22 can be individually composed a
People's communication network, the first equipment 21 are lower-powered equipment, and wearable or can be carried around, such as Bluetooth gloves, bluetooth
Eyes, Bluetooth watch, bluetooth wallet etc..Its transmission range is smaller, usually in 1-5m ranges.In Wireless Heterogeneous Networks system
Two equipment 22 and third equipment 23 can form local area communication network with core net, and the power of the second equipment 22 is larger, transmission distance
From for 100-500m or 1-5km ranges.The third equipment 23 of Wireless Heterogeneous Networks system can be individually composed WAN communication network, the
The power of three equipment 23 is maximum, and transmission range is 10-50km ranges.
By the above-mentioned means, the data transmission method and Wireless Heterogeneous Networks system of the embodiment of the present invention are by using difference
Frequency range receive and dispatch different data frames, different data frames corresponds to different service application demands, in high band using only wrapping
The data frame for including signaling field, to solve the problems, such as the networking of wearable device and carry-on equipment；Use by FSK in Mid Frequency structure and
DPSK modulates the data frame of payload field, and the bluetooth equipment to solve personal communication network connects as the terminal device of local area communication network
Enter the cost problem of local area communication network；The data frame by QAM modulation payload field is used in low-frequency range.Since all devices have
Mobility can realize the overall movement of Wireless Heterogeneous Networks system, logical when can be as army and large-scale team play
Believe solution.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of data transmission method, which is characterized in that the method includes：
First data frame, the second data frame, third data frame and the 4th data frame, second data frame, the third are set
Data frame and the 4th data frame are made of signaling field and payload field, and first data frame is only by signaling field group
It is adopted at the signaling field of, first data frame, second data frame, the third data frame and the 4th data frame
It is modulated with the first modulation system, the payload field of second data frame is modulated using first modulation system, the third
The payload field of data frame is modulated using the second modulation system, and the payload field of the 4th data frame uses third modulation system
The modulation rate of modulation, first modulation system is less than second modulation system, the modulation speed of second modulation system
Rate is less than the third modulation system；
When sending communication data, the first data frame is received and dispatched in the first frequency range, the communication data is carried on first number
According in the signaling field of frame；Second data frame or the third data frame, the communication data are received and dispatched in the second frequency range
It is carried in the payload field of second data frame or the third data frame；The 4th data are received and dispatched in the 4th frequency range
Frame, the communication data are carried in the payload field of the 4th data frame；Wherein, first frequency range is more than described second
Frequency range, second frequency range are more than the third frequency range.
2. data transmission method according to claim 1, which is characterized in that first modulation system is frequency shift keying
FSK modulation, second modulation system are differential phase-shift keying (DPSK) DPSK modulation, and the third modulation system is quadrature amplitude modulation
QAM modulation.
3. data transmission method according to claim 1 or 2, which is characterized in that first frequency range is 2.40-
2.48GHz, second frequency range are 1.22-1.30GHz, and the third frequency range is 620-700MHz.
4. data transmission method according to claim 3, which is characterized in that receiving and dispatching first data frame, described the
When two data frames, the third data frame or four data frame, the bandwidth of the communication data is calculated, if the bandwidth
Less than first threshold, by first data frame, second data frame, the third data frame or the 4th data frame
Frame length is set as first time length；If the bandwidth is between the first threshold and second threshold, by first data
Frame, second data frame, the third data frame or the 4th data frame frame length be set as the second time span；If institute
It states band and is wider than the second threshold, by first data frame, second data frame, the third data frame or described
The frame length of four data frames is set as third time span；Wherein, the first threshold is less than the second threshold, the first time
Length is less than second time span, and second time span is less than the third time span.
5. data transmission method according to claim 4, which is characterized in that the first time length is that the unit time is long
Degree, second time span are three times of unit time span, and the third time span is five times of unit time span,
The unit interval length is 325uS.
6. data transmission method according to claim 5, which is characterized in that first data frame, second data
The transmitting-receiving interval of frame, the third data frame and the 4th data frame is no less than 300us.
7. data transmission method according to claim 1, which is characterized in that wrapped in the signaling field of first data frame
128 bit switch data informations are included, transmission and encryption for controlling the communication data.
8. a kind of Wireless Heterogeneous Networks system, which is characterized in that the Wireless Heterogeneous Networks system is set including the first equipment, second
Standby and third equipment, the Wireless Heterogeneous Networks system is using the first data frame, the second data frame, third data frame and the 4th number
According to frame, second data frame, the third data frame and the 4th data frame are made of signaling field and payload field,
First data frame is only made of signaling field, first data frame, second data frame, the third data frame and
The signaling field of 4th data frame is all made of the modulation of the first modulation system, and the payload field of second data frame uses institute
The modulation of the first modulation system is stated, the payload field of the third data frame is modulated using the second modulation system, the 4th data
The payload field of frame is modulated using third modulation system, and the modulation rate of first modulation system is less than second modulation methods
The modulation rate of formula, second modulation system is less than the third modulation system, wherein
Between first equipment and second equipment when sending communication data, first equipment or second equipment
The first data frame is received and dispatched in the first frequency range, the communication data is carried in the signaling field of first data frame；
Between different second equipment when sending communication data, second equipment receives and dispatches described in the second frequency range
Two data frames, the communication data are carried in the payload field of second data frame；
Between second equipment and the third equipment when sending communication data, second equipment or the third equipment
The third data frame is received and dispatched in the second frequency range, the communication data is carried in the payload field of the third data frame；
Between the different third equipment when sending communication data, the third equipment receives and dispatches described in the 4th frequency range
Four data frames, the communication data are carried in the payload field of the 4th data frame.
9. Wireless Heterogeneous Networks system according to claim 8, which is characterized in that first modulation system is FSK tune
System, second modulation system are modulated for DPSK, and the third modulation system is QAM modulation；
First frequency range is 2.40-2.48GHz, and second frequency range is 1.22-1.30GHz, and the third frequency range is 620-
700MHz。
10. Wireless Heterogeneous Networks system according to claim 9, which is characterized in that first equipment, the second equipment or
Third equipment when receiving and dispatching first data frame, second data frame, the third data frame or four data frame,
First equipment, the second equipment or third equipment calculate the bandwidth of the communication data, if the bandwidth is less than the first threshold
The frame length of first data frame, second data frame, the third data frame or the 4th data frame is set as the by value
One time span；If the bandwidth is between the first threshold and second threshold, by first data frame, described second
The frame length of data frame, the third data frame or the 4th data frame is set as the second time span；If the band is wider than
The second threshold, by first data frame, second data frame, the third data frame or the 4th data frame
Frame length is set as third time span；Wherein, the first threshold is less than the second threshold, and the first time length is unit
Time span, second time span are three times of unit time span, and the third time span is unit time span
Five times, the unit interval length be 325uS, first data frame, second data frame, the third data frame and
The transmitting-receiving interval of 4th data frame is no less than 300us.
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