CN110048812A - Data transmission method, system and storage medium based on transmission power in a kind of Internet of Things - Google Patents
Data transmission method, system and storage medium based on transmission power in a kind of Internet of Things Download PDFInfo
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- CN110048812A CN110048812A CN201910250189.2A CN201910250189A CN110048812A CN 110048812 A CN110048812 A CN 110048812A CN 201910250189 A CN201910250189 A CN 201910250189A CN 110048812 A CN110048812 A CN 110048812A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
Abstract
The present invention provides data transmission method, system and the storage mediums in a kind of Internet of Things based on transmission power, the data transmission method includes: M the first configuration informations that the second communication node receives that the first communication node is sent, and by first configuration information storage into memory；Second communication node obtains the information source data traffic bits sequence for needing to send to first communication node；Second communication node measures path loss according to the reference signal of the carry out path loss measurement of every the first configuration information of set configuration respectively, based on the transmission power for determining every the first configuration information of set with value of the path loss and the minimum received signal to noise ratio, second communication node selects described and the smallest the first configuration information of correspondence of value as the first configuration information of candidate.The beneficial effects of the present invention are: the present invention compared with prior art, overcomes the problems, such as that spectrum efficiency is poor in existing Internet of Things, improves the spectrum efficiency of Internet of things system, reduces control overhead.
Description
Technical field
The present invention relates to the data transmission in wireless communication technology field more particularly to a kind of Internet of Things based on transmission power
Method, system and storage medium.
Background technique
5G will meet people in the diversified business demand in the various regions such as inhabitation, work, leisure and traffic, even if close
Collect residential quarter, office, stadium, outdoor rally, subway, through street, high-speed rail and wide area covering etc. with ultra high flux density,
Superelevation connects number density, the scene of ultrahigh-mobility feature, or user provides ultra high-definition video, virtual reality, enhancing
The ultimate attainment business experiences such as reality, cloud desktop, game on line.At the same time, 5G will also penetrate into Internet of Things and various industries field,
It is merged with industrial plants, Medical Instruments, vehicles even depth, effectively meets the multiplicity of the vertical industries such as industry, medical treatment, traffic
Change business demand, realizes really " all things on earth interconnection ".
5G application scenarios can be divided into two major classes, i.e. mobile broadband (MBB, Mobile Broadband) and Internet of Things
(IoT, Internet of Things).Wherein, the major technique demand of mobile broadband access is high capacity, provides high data speed
Rate, to meet constantly increasing for data traffic requirement.Internet of Things is mainly by machine communication (MTC, Machine Type
Communication) the driving of demand can be further divided into two types, magnanimity machine communication including low rate (MMC,
Massive Machine Communication) and the highly reliable machine communication of low time delay.Wherein, for the magnanimity of low rate
Machine communication, the access of magnanimity node low rate, the data packet of transmission is usually smaller, and interval time can be relatively long, this kind of node
Cost and power consumption generally also can be very low；The machine communication highly reliable for low time delay, is mainly directed towards real-time and reliability is wanted
Ask relatively high machine communication, such as real-time alert, real time monitoring etc..
In 5th Generation Mobile Communication System, a kind of to need the scene studied be the transmission side data according to terminal available power
Method, common solution main problem are the problem of not fully considering terminal available power, this results in data to transmit
Reliability comparotive is low.
Summary of the invention
The present invention provides the data transmission methods based on transmission power in a kind of Internet of Things, including successively execute following step
It is rapid:
Step 1: the second communication node receives M the first configuration informations that the first communication node is sent, and by described first
Configuration information is stored into memory, and first configuration information includes the reference signal for carrying out path loss measurement, minimum reception letter
Ratio, 3 kinds of channel coding method configuration informations, N number of service bits sequence length section configuration information, the N number of access sequence of making an uproar assemble
Confidence breath, N number of data resource configuration information and service bits sequence length section configuration information, the access sequence
The description information of group configuration information, the data resource configuration information corresponding relationship, the N is the integer more than or equal to 1, described
M is integer more than or equal to 2,3 kinds of channel coding method configuration informations be respectively polarization code, low density parity check code,
Polarization code and low density parity check code hybrid coding；
Step 2: second communication node obtains the information source data service ratio for needing to send to first communication node
Special sequence；
Step 3: the carry out path loss measurement that second communication node is configured according to every the first configuration information of set respectively
Reference signal measure path loss, based on the path loss and the minimum received signal to noise ratio and value determine every the first configuration information of set
Transmission power, second communication node selects described and the smallest the first configuration information of correspondence of value as candidate first configuration
Information；
Step 4: second communication node is according to the length of the information source data traffic bits sequence and described candidate
One configuration information, which determines, needs candidate access sequence group to be used；
Step 5: if the length of the information source data traffic bits sequence is less than or equal to 64, second communication node
Channel coding is carried out to the information source data traffic bits sequence using polarization code and obtains channel data traffic bit sequence；If
The length of the information source data traffic bits sequence is greater than 64 and is less than or equal to 128, then second communication node uses low close
Degree parity check code carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit sequence；Such as
The length of information source data traffic bits sequence described in fruit is greater than 128, then second communication node uses polarization code and low-density
Parity check code hybrid coding carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit
Sequence, wherein the polarization code and low density parity check code hybrid coding refer to the information source data traffic bits sequence
In preceding 64 bits encoded using polarization code, remaining bit is encoded using low density parity check code；
Step 6: second communication node is true according to the candidate access sequence group and candidate first configuration information
The fixed candidate data resource；
Step 7: one candidate of selection accesses sequence to second communication node from the candidate access sequence group at random,
Second communication node sends the candidate access sequence, uses channel data traffic described in the candidate data resource transmission
Bit sequence gives first communication node；
Step 8: if first communication node is properly received the information source data traffic bits sequence, sending feedback
Successful information gives the second communication node；If first communication node, which fails, receives the information source data traffic bits sequence
Column, then do not feed back any information to second communication node, and second communication node is by the information source data traffic bits
Sequence is divided into several 32 long bit sequences, is then repeated once each 32 long bit sequences and becomes 64 long bit sequences
Column retransmit described 64 long bit sequences, wherein in step 3 if described in the way of step 1 to step 7
It is both less than the maximum transmission power of second communication node with value, then choose and is worth maximum first configuration information as candidate
First configuration information selects described and value if described and value is both greater than the maximum transmission power of second communication node
The smallest first configuration information is as candidate first configuration information.
As a further improvement of the present invention, each service bits sequence length section configuration information includes variables L 1
And L2, wherein L1 is less than L2, and L1 is the integer more than or equal to 1.
As a further improvement of the present invention, if the length of the information source data traffic bits sequence be more than or equal to L1,
And it is less than L2, then the second communication node use access sequence corresponding with the service bits sequence length section configuration information
Group is determined as candidate access sequence group.
As a further improvement of the present invention, data money corresponding with service bits sequence length section configuration information
The subcarrier number that source includes is 3*L2, and 1/3 subcarrier is used to transmit demodulation in the subcarrier that the data resource includes
Reference signal, the subcarrier for transmitting the demodulated reference signal are evenly distributed on the 3*L2 son that the data resource includes
In carrier wave.
As a further improvement of the present invention, it is used when carrying out channel coding to the information source data traffic bits sequence
Code rate is less than or equal to 1/2.
As a further improvement of the present invention, if the length of the channel data traffic bit sequence is less than or equal to 64,
Then second communication node uses the running time-frequency resource prior to the candidate data resource to send 1 candidate in time and connects
Enter sequence.
As a further improvement of the present invention, if the length of the channel data traffic bit sequence is greater than 64 and small
In being equal to 128, then second communication node uses the running time-frequency resource prior to the candidate data resource to repeat to send out in time
Send 2 candidate access sequences.
As a further improvement of the present invention, if the length of the channel data traffic bit sequence is more than or equal to 128,
Then second communication node respectively repeats to send 2 using the running time-frequency resource for being located at candidate data resource two sides in time
The candidate access sequence.
The present invention also provides the data transmission systems based on transmission power in a kind of Internet of Things, comprising: memory, processing
Device and the computer program being stored on the memory, it is real when the computer program is configured to be called by the processor
The step of existing method of the present invention.
The present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage has calculating
The step of machine program, the computer program realizes method of the present invention when being configured to be called by processor.
The beneficial effects of the present invention are: the present invention compared with prior art, overcomes spectrum efficiency difference in existing Internet of Things
Problem improves the spectrum efficiency of Internet of things system, reduces control overhead.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
As shown in Figure 1, the invention discloses the data transmission methods based on transmission power in a kind of Internet of Things, as this hair
Bright embodiment 1, the data transmission method include successively executing following steps:
The S1: the second communication node of step receives M the first configuration informations that the first communication node is sent, and by described first
Configuration information is stored into memory, and first configuration information includes the reference signal for carrying out path loss measurement, minimum reception letter
Ratio, 3 kinds of channel coding method configuration informations, N number of service bits sequence length section configuration information, the N number of access sequence of making an uproar assemble
Confidence breath, N number of data resource configuration information and service bits sequence length section configuration information, the access sequence
The description information of group configuration information, the data resource configuration information corresponding relationship, the N is the integer more than or equal to 1, described
M is integer more than or equal to 2,3 kinds of channel coding method configuration informations be respectively polarization code, low density parity check code,
Polarization code and low density parity check code hybrid coding；
Step S2: second communication node obtains the information source data service ratio for needing to send to first communication node
Special sequence；
Step S3: the carry out path loss measurement that second communication node is configured according to every the first configuration information of set respectively
Reference signal measure path loss, based on the path loss and the minimum received signal to noise ratio and value determine every the first configuration information of set
Transmission power, second communication node selects described and the smallest the first configuration information of correspondence of value as candidate first configuration
Information；
Step S4: second communication node is according to the length of the information source data traffic bits sequence and described candidate
One configuration information, which determines, needs candidate access sequence group to be used；
Step S5: if the length of the information source data traffic bits sequence is less than or equal to 64, second communication section
Point carries out channel coding to the information source data traffic bits sequence using polarization code and obtains channel data traffic bit sequence；Such as
The length of information source data traffic bits sequence described in fruit is greater than 64 and is less than or equal to 128, then second communication node uses low
Density parity check code carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit sequence；
If the length of the information source data traffic bits sequence is greater than 128, second communication node uses polarization code and low close
Degree parity check code hybrid coding carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic ratio
Special sequence, wherein the polarization code and low density parity check code hybrid coding refer to the information source data traffic bits sequence
Preceding 64 bits are encoded using polarization code in column, remaining bit is encoded using low density parity check code；
Step S6: second communication node is true according to the candidate access sequence group and candidate first configuration information
The fixed candidate data resource；
Step S7: one candidate of selection accesses sequence to second communication node from the candidate access sequence group at random
Column, second communication node send the candidate access sequence, use channel data described in the candidate data resource transmission
Service bits sequence gives first communication node；
Step S8: it if first communication node is properly received the information source data traffic bits sequence, sends anti-
Successful information is presented to the second communication node；If first communication node, which fails, receives the information source data traffic bits
Sequence, then do not feed back any information to second communication node, and second communication node is by the information source data service ratio
Special sequence is divided into several 32 long bit sequences, is then repeated once each 32 long bit sequences and becomes 64 long bits
Sequence retransmits described 64 long bit sequences in the way of step S1 to step S8, wherein in step s3 if
Described and value is both less than the maximum transmission power of second communication node, then chooses and be worth maximum first configuration information conduct
Candidate first configuration information, if the maximum transmission power of described and value both greater than second communication node, described in selection
Candidate first configuration information is used as with the smallest first configuration information is worth.
First communication node is base station, and second communication node is terminal.
Embodiment 2: on the basis of embodiment 1, each service bits sequence length section configuration information includes becoming
L1 and L2 is measured, wherein L1 is less than L2, and L1 is the integer more than or equal to 1.The advantage of doing so is that allowing base station can be with when realizing
The collision probability of this quick transmission mode is adjusted according to the information source data volume size of terminal.For example, when system thinks information source number
When more according to more terminal quantity, in order to avoid under data transmission collision probability spectrum efficiency caused greatly between terminal
Drop, base station can be the more access bit sequences of configuration in the corresponding access sequence group of this kind of terminal to reduce number between terminal
Collision probability when according to transmission.
Embodiment 3: on the basis of embodiment 2, if the length of the information source data traffic bits sequence is more than or equal to
L1 and be less than L2, then the second communication node use access corresponding with the service bits sequence length section configuration information
Sequence group is determined as candidate access sequence group.Similarly, if the length of information source data traffic bits sequence is less than L1, second
Communication node use access sequence group corresponding with the service bits sequence length section configuration information is determined as candidate access sequence
Column group.The advantage of doing so is that allowing base station that can adjust this quick biography according to the information source data volume size of terminal when realizing
The collision probability of defeated mode.For example, when system thinks that the fewer terminal quantity of information source data is more, in order to avoid terminal
Between data transmission collision probability greatly caused by spectrum efficiency decline, base station can be in the corresponding access sequence group of this kind of terminal
The more access bit sequences of configuration are to reduce collision probability when data are transmitted between terminal.
Embodiment 4: on the basis of embodiment 3, number corresponding with service bits sequence length section configuration information
It is 3*L2 according to the subcarrier number that resource includes.The advantage of doing so is that increasing letter of the length between L1 and L2 as far as possible
Source bit transmit when number of repetition (system thinks that the business datum of the siding-to-siding block length is important at this time), improve data receiver at
Power.
Embodiment 5: on the basis of embodiment 4,1/3 subcarrier is used to pass in the subcarrier that the data resource includes
Defeated demodulated reference signal.In general, the access sequence that terminal transmission can be used in base station carries out channel estimation, to go demodulation terminal
The upstream data of transmission, the benefit for increasing demodulation pilot tone here are to improve the letter for needing the specific length business datum laid special stress on protecting
Road estimated accuracy, to promote the transmission success rate of such length business datum.
Embodiment 6: on the basis of embodiment 5, the subcarrier for transmitting the demodulated reference signal is evenly distributed on
In the 3*L2 subcarrier that the data resource includes.The advantage of doing so is that base station can be allowed relatively accurately to obtain terminal hair
The channel information of the used resource of data is sent, the probability of data receiver power is improved.
Embodiment 7: it on the basis of embodiment 1, is adopted when carrying out channel coding to the information source data traffic bits sequence
Code rate is less than or equal to 1/2.The purpose required in this way is by extremely low code rate, it is ensured that even if data are occurring between terminal
In the case where transmission collision, the upstream data of terminal transmission can be also successfully decoded in base station.
Embodiment 8: on the basis of embodiment 1, if the length of the channel data traffic bit sequence is less than or equal to
64, then second communication node uses the running time-frequency resource prior to the candidate data resource to send 1 time in time
Choosing access sequence.The purpose for the arrangement is that when the source bits length due to terminal is smaller, even if access sequence is due to sending
In the case that energy is low to cause base station to fail reception access sequence, and then base station can not go decoding related data, to system
Spectrum efficiency influence it is smaller.
Embodiment 9: on the basis of embodiment 1, if the length of the channel data traffic bit sequence be greater than 64,
And being less than or equal to 128, then second communication node uses the running time-frequency resource weight prior to the candidate data resource in time
2 candidate access sequences are sent in recurrence.The purpose for the arrangement is that due to terminal source bits moderate length when, it is as logical as possible
Overweight recurrence send the mode of access sequence to increase the energy that base station receives access sequence, is properly received the probability of access sequence, into
And increase the probability of base station successful data reception.
Embodiment 10: on the basis of embodiment 1, if the length of the channel data traffic bit sequence is more than or equal to
128, then second communication node respectively repeats to send out using the running time-frequency resource for being located at candidate data resource two sides in time
Send 2 candidate access sequences.The purpose for the arrangement is that due to terminal source bits moderate length when, pass through as far as possible weight
Recurrence send the mode of access sequence to increase the energy that base station receives access sequence, is properly received the probability of access sequence, Jin Erzeng
Add the probability of base station successful data reception.
The invention also discloses the data transmission systems based on transmission power in a kind of Internet of Things, comprising: memory, processing
Device and the computer program being stored on the memory, it is real when the computer program is configured to be called by the processor
The step of existing method of the present invention.
The invention also discloses a kind of computer readable storage medium, the computer-readable recording medium storage has calculating
The step of machine program, the computer program realizes method of the present invention when being configured to be called by processor.
The beneficial effects of the present invention are: the present invention compared with prior art, overcomes spectrum efficiency difference in existing Internet of Things
Problem improves the spectrum efficiency of Internet of things system, reduces control overhead.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. based on the data transmission method of transmission power in a kind of Internet of Things, which is characterized in that including successively executing following steps:
Step 1: the second communication node receives M the first configuration informations that the first communication node is sent, and described first is configured
Information is stored into memory, first configuration information include the reference signal for carrying out path loss measurement, minimum received signal to noise ratio,
3 kinds of channel coding method configuration informations, N number of service bits sequence length section configuration information, N number of access sequence assemble confidence
Breath, N number of data resource configuration information and service bits sequence length section configuration information, the access sequence assemble
The description information of confidence breath, the data resource configuration information corresponding relationship, the N are the integer more than or equal to 1, and the M is
Integer more than or equal to 2,3 kinds of channel coding method configuration informations are respectively polarization code, low density parity check code, polarization
Code and low density parity check code hybrid coding；
Step 2: second communication node obtains the information source data traffic bits sequence for needing to send to first communication node
Column；
Step 3: second communication node is respectively according to the ginseng of the carry out path loss measurement of every the first configuration information of set configuration
Signal measurement path loss is examined, based on the hair for determining every the first configuration information of set with value of the path loss and the minimum received signal to noise ratio
Power is sent, second communication node selects described and the smallest the first configuration information of correspondence of value as candidate first with confidence
Breath；
Step 4: second communication node is matched according to the length of the information source data traffic bits sequence and described candidate first
Confidence breath, which determines, needs candidate access sequence group to be used；
Step 5: if the length of the information source data traffic bits sequence is less than or equal to 64, second communication node is used
Polarization code carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit sequence；If described
The length of information source data traffic bits sequence is greater than 64 and is less than or equal to 128, then second communication node is odd using low-density
Even parity check code carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit sequence；If institute
The length for stating information source data traffic bits sequence is greater than 128, then second communication node uses polarization code and low-density parity
Check code hybrid coding carries out channel coding to the information source data traffic bits sequence and obtains channel data traffic bit sequence,
Wherein, the polarization code and low density parity check code hybrid coding refer to preceding 64 in the information source data traffic bits sequence
A bit is encoded using polarization code, remaining bit is encoded using low density parity check code；
Step 6: second communication node determines institute according to the candidate access sequence group and candidate first configuration information
State candidate data resource；
Step 7: one candidate of selection accesses sequence to second communication node from the candidate access sequence group at random, described
Second communication node sends the candidate access sequence, uses channel data traffic bit described in the candidate data resource transmission
Sequence gives first communication node；
Step 8: if first communication node is properly received the information source data traffic bits sequence, sending and feed back successfully
Information gives the second communication node；If first communication node, which fails, receives the information source data traffic bits sequence,
Any information is not fed back then to second communication node, second communication node is by the information source data traffic bits sequence
It is divided into several 32 long bit sequences, then each 32 long bit sequences is repeated once and become 64 long bit sequences,
Described 64 long bit sequences are retransmitted in the way of step 1 to step 7, wherein in step 3 if described and value
The maximum transmission power of both less than described second communication node is then chosen and is worth maximum first configuration information as candidate first
Configuration information, if described and value is both greater than the maximum transmission power of second communication node, selection is described and value is minimum
The first configuration information as candidate first configuration information.
2. data transmission method according to claim 1, which is characterized in that each service bits sequence length section
Configuration information includes variables L 1 and L2, and wherein L1 is less than L2, and L1 is the integer more than or equal to 1.
3. data transmission method according to claim 2, which is characterized in that if the information source data traffic bits sequence
Length be more than or equal to L1 and be less than L2, then the second communication node use and the service bits sequence length section configuration
The corresponding access sequence group of information is determined as candidate access sequence group.
4. data transmission method according to claim 2, which is characterized in that match with service bits sequence length section
It is 3*L2,1/3 in the subcarrier that the data resource includes that confidence, which ceases the subcarrier number that corresponding data resource includes,
Subcarrier is used to transmit demodulated reference signal, and the subcarrier for transmitting the demodulated reference signal is evenly distributed on the data
In the 3*L2 subcarrier that resource includes.
5. data transmission method according to claim 1, which is characterized in that the information source data traffic bits sequence into
The code rate used when row channel coding is less than or equal to 1/2.
6. data transmission method according to claim 1, which is characterized in that if the channel data traffic bit sequence
Length be less than or equal to 64, then second communication node uses the running time-frequency resource prior to the candidate data resource in time
Send 1 candidate access sequence.
7. data transmission method according to claim 1, which is characterized in that if the channel data traffic bit sequence
Length be greater than 64 and be less than or equal to 128, then second communication node is used in time prior to the candidate data resource
Running time-frequency resource repeat to send 2 candidate access sequences.
8. data transmission method according to claim 1, which is characterized in that if the channel data traffic bit sequence
Length be more than or equal to 128, then second communication node in time using be located at candidate data resource two sides when
Frequency resource respectively repeats to send 2 candidate access sequences.
9. based on the data transmission system of transmission power in a kind of Internet of Things characterized by comprising memory, processor with
And it is stored in the computer program on the memory, power is realized when the computer program is configured to be called by the processor
Benefit requires the step of method described in any one of 1-8.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
The step of sequence, the computer program realizes method of any of claims 1-8 when being configured to be called by processor.
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| WO2020199646A1 (en) * | 2019-03-29 | 2020-10-08 | 深圳职业技术学院 | Information processing method and system based on signal-to-noise ratio in internet of things, and storage medium |
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