CN107231697A - The transmission method and device of data in a kind of wireless cellular network - Google Patents
The transmission method and device of data in a kind of wireless cellular network Download PDFInfo
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- CN107231697A CN107231697A CN201610177309.7A CN201610177309A CN107231697A CN 107231697 A CN107231697 A CN 107231697A CN 201610177309 A CN201610177309 A CN 201610177309A CN 107231697 A CN107231697 A CN 107231697A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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Abstract
The transmission method and device of data in a kind of wireless cellular network, methods described include：Intercept whether Internet of Things communication shared channel reaches default first duration in idle condition, wherein, the Internet of Things communication shared channel is provided by base station, suitable for transmitting the data；When Internet of Things communication shared channel reaches first duration in idle condition, in Internet of Things communication shared channel, the data are sent in the form of information frame, and described information frame includes being intended to the identification information of transmitting terminal；When receiving reply data frame in default second duration, and the reply data frame, when indicating that the transmission of described information frame is correct, it is determined that completing the transmission of the data, first duration is more than second duration.The signaling consumption in the efficiency of communication system, reduction communication process can be improved using such scheme.
Description
Technical field
The present invention relates to a kind of transmission method of data in wireless communication field, more particularly to wireless cellular network
And device.
Background technology
According to the communication mode in current wireless cellular network, the transmit process of a upstream data includes：With
Machine access request, the distribution of Radio Resource and connection are set up, data link layer connection is set up, identity is carried
For the Connection Release of the, transmission of ciphering startup, data, data link Connection Release and Radio Resource；
For downlink data transmit process, except comprising with addition to upstream data transmit process identical handling process,
Before Network with Random Multiple Access System, in addition to paging.Thus, it could be seen that the transmission to complete data, institute
The communication process signaling amount to be spent is very big.
The need for above-mentioned wireless communication technology can meet communication to a certain extent.However, following be present
Large number quipments are while Internet of Things demand formed by accessing.
In substantial amounts of internet of things equipment, the data volume very little that equipment communicates every time sometimes, if using existing
Data transmission method in some wireless cellular networks transmits the small data, can cause communication system efficiency
Lowly, the signaling consumption of communication process is big.
The content of the invention
The problem of present invention is solved is the efficiency for how improving communication system, the signaling in reduction communication process
Expense.
To solve the above problems, the embodiment of the present invention provides a kind of transmission method of data in wireless cellular network,
Methods described includes：Intercept Internet of Things communication shared channel whether in idle condition reach default first when
It is long, wherein, the Internet of Things communication shared channel is provided by base station, suitable for transmitting the data；When described
Internet of Things communication shared channel is in idle condition when reaching first duration, is shared in Internet of Things communication
On channel, the data are sent in the form of information frame, and described information frame includes the body of desire transmitting terminal
Part identification information；After information frame is sent, when receiving reply data frame in default second duration,
And the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that the transmission of the data is completed,
First duration is more than second duration.
Alternatively, methods described also includes：When it is determined that Internet of Things communication shared channel is in busy state
When, continue to intercept the Internet of Things communication shared channel, and listen to the Internet of Things communication shared channel by
The busy state goes to the idle condition and lasts up to default 3rd duration in the idle condition
When, in Internet of Things communication shared channel, the data are sent in the form of information frame；Described 3rd
Duration be equal to the product of time slot and a random number again with the first duration sum.
Alternatively, the random number passes through binary exponential backoff algorithm value.
Alternatively, described first when a length of distributed frame between gap.
Alternatively, described second when a length of short interFrameGap.
Alternatively, methods described also includes：When the reply data frame indicates described information frame transmission mistake
When, re-execute and intercept the operation whether Internet of Things communication shared channel is in idle condition, to transmit again
The data.
Alternatively, methods described also includes：When not receiving the reply data frame in second duration
When, re-execute and intercept the operation whether Internet of Things communication shared channel is in idle condition, to transmit again
The data.
Alternatively, methods described also includes：When transmitting the data to default number of times again, abandon
Transmit the data, and output error warning message.
Alternatively, the reply data frame is ACK frames.
Alternatively, the identification information storage for being intended to transmitting terminal is in the MAC header or packet count of described information frame
According in convergence protocol.
The embodiments of the invention provide a kind of transmitting device of data in wireless cellular network, described device includes：
Channel sense unit, suitable for intercepting whether Internet of Things communication shared channel in idle condition reaches default the
One duration, wherein, the Internet of Things communication shared channel is provided by base station, suitable for transmitting the data；Number
According to transmitting element, suitable for reaching first duration in idle condition when the Internet of Things shared channel that communicates
When, in Internet of Things communication shared channel, the data, and the letter are sent in the form of information frame
Breath frame includes being intended to the identification information of transmitting terminal；Determining unit, suitable for inscribed in default second duration
When receiving reply data frame, and the reply data frame is when indicating that the transmission of described information frame is correct, has determined
Into the transmission of the data, first duration is more than second duration.
Alternatively, the channel sense unit, is further adapted for when the determination Internet of Things communication shared channel is in
During busy state, continue to intercept the Internet of Things communication shared channel；The data transmission unit, is further adapted for
The idle condition is gone to listening to Internet of Things communication shared channel by the busy state and in institute
When stating idle condition and lasting up to default three duration, in Internet of Things communication shared channel, with information frame
Form send the data；3rd duration is equal to the product of time slot and a random number again with described the
One duration sum.
Alternatively, the random number passes through binary exponential backoff algorithm value.
Alternatively, described first when a length of distributed frame between gap.
Alternatively, described second when a length of short interFrameGap.
Alternatively, described device also includes：First data retransmission unit, suitable for when the reply data frame
When indicating described information frame transmission mistake so that it is shared that Internet of Things communication is intercepted in the channel sense unit execution
Whether channel is in the operation of idle condition, to transmit the data again.
Alternatively, described device also includes：Second data retransmission unit, suitable for when in second duration
When inside not receiving the reply data frame so that the channel sense unit, which performs to intercept Internet of Things and communicate, to be shared
Whether channel is in the operation of idle condition, to transmit the data again.
Alternatively, described device also includes：Timing unit, time of the data is resend suitable for record
Number；Warning unit, suitable for when resending the data to default number of times, abandoning transmitting the number
According to, and output error warning message.
Alternatively, the reply data frame is ACK frames.
Alternatively, the identification information storage for being intended to transmitting terminal is in the MAC header or packet count of described information frame
According in convergence protocol.
Compared with prior art, technical scheme has advantages below：
By when Internet of Things communication shared channel is in idle condition and reaches default first duration, to include
The form for being intended to the information frame of the identification information of transmitting terminal sends the data, and information frame is sent, and
After second duration, when receiving the instruction described information frame correct reply data frame of transmission, that is, determine to complete institute
The transmission of data is stated, this data transmission procedure is without Network with Random Multiple Access System, radio resource allocation and connection
Set up, data link connects foundation, the offer of identity, ciphering startup, the transmission of data, data link
Connection Release, the Connection Release of Radio Resource these communication steps, therefore the finger in communication process can be reduced
Make expense, it is possible to improve the efficiency of communication system.
Further, when it is determined that Internet of Things communication shared channel is in busy state, by continuing to intercept
The Internet of Things communication shared channel, and shared channel is communicated by the busy state listening to the Internet of Things
Go to the idle condition and in the idle condition last up to default three duration when, start with institute
State in Internet of Things communication shared channel, the transmission data in the form of information frame, and described 3rd duration etc.
In time slot and a random number product again with the first duration sum, it is two or more so as to avoid
The communication contention aware that transmitting terminal again attempts to transmission data and caused simultaneously is intended to, therefore contributes to the flat of communication load
It is sliding.
Brief description of the drawings
Fig. 1 is the flow signal of the transmission method of data in a kind of wireless cellular network in the embodiment of the present invention
Figure；
Fig. 2 is a kind of structural representation of information frame in the embodiment of the present invention；
Fig. 3 is a kind of communication network hierarchical structure schematic diagram in the embodiment of the present invention；
Fig. 4 is the structural representation of another information frame in the embodiment of the present invention；
Fig. 5 is that a kind of Internet of Things in the embodiment of the present invention communicates the timing diagram of eating dishes without rice or wine of shared channel；
Fig. 6 is the flow signal of the transmitting device of data in a kind of wireless cellular network in the embodiment of the present invention
Figure.
Embodiment
According to the communication mode in current wireless cellular network, the transmit process of a upstream data includes：With
Machine access network, radio resource allocation and connection set up, data link layer connection foundation, the offer of identity,
Ciphering startup, the transmission of data, the Connection Release of data link layer Connection Release and Radio Resource；It is right
In downlink data transmit process, except comprising with addition to upstream data transmit process identical handling process,
Before Network with Random Multiple Access System, in addition to paging.Thus, it could be seen that the transmission to complete data,
The communication process signaling amount of cost is very big.
The need for above-mentioned wireless communication technology can meet communication to a certain extent.However, following be present
Large number quipments are while Internet of Things demand formed by accessing.
In substantial amounts of internet of things equipment, the data volume very little that equipment communicates every time sometimes, if using existing
Data transmission method in some wireless cellular networks transmits the small data, can cause communication system efficiency
Lowly, the signaling consumption of communication process is big.
To solve the above problems, the embodiment of the present invention in Internet of Things by communicating shared channel in idle condition
During up to certain time length, the data are sent to include the form of information frame for the identification information for being intended to transmitting terminal,
And when receiving the instruction described information frame correct reply data frame of transmission, it is determined that completing the biography of the data
It is defeated, this data transmission procedure without Network with Random Multiple Access System, Radio Resource resource allocation and connection set up,
Data link layer connection foundation, the offer of identity, ciphering startup, the transmission of data, data link layer connect
Release, the Connection Release of Radio Resource these communication steps are connect, therefore the instruction in communication process can be reduced
Expense, it is possible to improve the efficiency of communication system.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is described in detail.
The transmission method of data in a kind of wireless cellular network in the embodiment of the present invention is the following provided, below
Methods described is described in detail with reference to Fig. 1, methods described may include steps of：
S11:Intercept whether Internet of Things communication shared channel reaches default first duration t1 in idle condition.
In specific implementation, the Internet of Things communication shared channel is suitable to transmission communication data, can be multiple
Terminal is shared with base station to be used, that is to say, that multiple terminals or base station, which can have permission, uses the letter
Road transmits data, but synchronization, can only have a terminal or base station to take the channel.And it is described
Channel can be provided by base station, such as base station can determine that frequency of the channel etc. passes a parameter, then
Described pass a parameter is notified into other base stations and terminal by the form of broadcast.
It should be noted that the present invention is more fully understood and realized for ease of those skilled in the art, herein
The equipment that the Internet of Things communication shared channel will be used to transmit data is represented to be intended to transmitting terminal.And
And, as previously described, the equipment can be terminal, or base station.
Used because Internet of Things communication shared channel can be shared by multiple terminals and base station, therefore in this hair
It is described to be intended to before data are sent using the channel in order to avoid communication contention aware in a bright embodiment
Transmitting terminal can intercept whether Internet of Things communication shared channel is in idle condition.
In an embodiment of the present invention, the first duration t1 can be gap between distributed frame
(Distributed Inter-frame Spacing, DIFS).DIFS is most long interframe space, and priority is most
It is low, it can be used for the time delay of async framing contention access.Those skilled in the art according to actual needs, can be with
The size of the first duration t1 is set.
When Internet of Things communication shared channel, which is in idle condition, reaches default first duration t1, S12 is performed；
Conversely, performing S14.
S12：In Internet of Things communication shared channel, the data, and institute are sent in the form of information frame
Stating information frame includes being intended to the identification information of transmitting terminal.
In specific implementation, idle condition can be in up to default the in Internet of Things communication shared channel
During one duration t1, in the form of information frame, in Internet of Things communication shared channel, the data are sent,
So, it is possible to avoid multiple equipment while sending data using the channel.And described information
Frame includes being intended to the identification information of transmitting terminal, shows to be intended to the identity of transmitting terminal, to cause receiving terminal can
To recognize being which desire transmitting terminal have sent the data, consequently facilitating receipt of subsequent end is to the data
Reception state is fed back, therefore it can be diversified forms to be intended to the identification information of transmitting terminal, such as may be used
Think the ID of the desire transmitting terminal, or be intended to the physical address of transmitting terminal, can also be random number.
In order to prevent from attacking and improve the security of data, in specific implementation, in the form of information frame
When sending the data, in described information frame, the data can be encrypted.
In an embodiment of the present invention, the form of described information frame can be with as shown in Fig. 2 described information frame
Structural representation includes：MAC header (MAC Header), device identification UE ID, encryption data (Ciphered
) and Frame Check Sequence (Frame Check Sequence, FCS) Data.
Wherein：The MAC Header be used for long bag segmentation restructuring, transmission, confirm, by mistake bag retransmit,
The realization of the physical layer functions such as encryption and decryption, integrity checking, can add two priority classes, source address,
The information such as destination address；The UE ID are used to identify terminal, and this is due to that can select to close after terminal is opened
Suitable wireless network and cell, and set up connection, and connect process of setting up can be related to know terminal identity,
Mutually authenticate and generate ex curia key, temporary identity distribution etc. step, the UE ID can be to face
When identity information, or permanent identity information.It is described to be sent out in order to prevent attack and information security
The data sent can be encrypted using key, and receiving terminal is received after encryption data, can pass through UE
ID obtains the key consistent with the desire transmitting terminal, to decode the encryption data；The FCS is used to miss
Bag detection.
In an alternative embodiment of the invention, UE ID can also be placed in MAC Header.
It should be noted that the form for showing described information frame in Fig. 2, is intended merely to people in the art
Member more fully understands and realized the present invention, but not represents the unique format that it is described information frame, Fig. 2
The form of middle information frame does not constitute any limitation to protection scope of the present invention.And the device identification
UE ID can be the mark of terminal, or the mark of base station, according to the different and different of desire transmitting terminal.
In an embodiment of the present invention, the terminal refer to can exchange data computer equipment, including but
It is not limited to the equipment such as mobile phone, notebook, tablet personal computer and vehicle-mounted computer.
In specific implementation, the communication network hierarchical structure shown in Fig. 3 can be used to transmit described information
Frame, the hierarchical structure includes：Internet of Things communication application layer (APP Layer), Internet (IP Layer),
Data link layer (MAC Layer) and physical layer (PHY Layer), the hierarchical structure is from top to bottom
Order.
Wherein：Internet of Things information can be transmitted by IP agreement, and MAC layer carries the transmission of IP packets
And reception, it is also responsible for long bag segmentation restructuring, Carrier Sense Multiple Access (Carrier Sense Multiple
Access, CSMA), frame transmission, encryption and decryption, integrity checking, by mistake bag detection, confirm, by mistake Bao Chong
Pass etc., two priority classes can be added.
In an alternative embodiment of the invention, communicated for Long Term Evolution (Long Term Evolution, LTE)
Network, the form of described information frame can be as shown in Figure 4.
Described information frame includes：MAC header (MAC Header), media connection control head (Radio Link
Control Header, RLC), PDCP head (Packet Data Convergence Protocol
Header, PDCP Header), encryption data (Ciphered Data) and Frame Check Sequence (Frame Check
Sequence, FCS).This is because, encryption function is by PDCP layers of realization, UE ID can be placed in PDCP
In Header, if PDCP Header space not enough, can be by extending PDCP header at present
Mode places UE ID, and to grow bag segmentation recombination function can be undertaken by rlc layer, and MAC layer can be held
CSMA, frame transmission are carried on a shoulder pole, bag detects, confirms, misses bag functions of retransmission by mistake, can also add two priority classes.
So, it can realize that the present invention is real on the basis of minimum change is done to current network protocol layer
Apply the data transmission method in example.
S13：Preset after described information frame is sent in the second duration t2 and receive reply data frame, and
When the reply data frame indicates that the transmission of described information frame is correct, it is determined that the transmission of the data is completed, institute
The first duration t1 is stated more than the second duration t2.
Because after information frame is sent, receiving terminal can judge the correctness of data by FCS, and
Replied in default second duration t2 to the desire transmitting terminal in reply data frame, and reply data frame
Carry the information for whether being properly received the data.Therefore in specific implementation, if the desire transmitting terminal
Reply data frame, and institute can be received in the default second duration t2 after described information frame is sent
When stating reply data frame and indicating that the transmission of described information frame is correct, then it can determine to complete the biography of the data
It is defeated.
In an embodiment of the present invention, the first duration t1 is more than the second duration t2, it is ensured that
The preferential transmission of reply data frame.
In an embodiment of the present invention, the second duration t2 can be short interFrameGap (Short
Interframe Space, SIFS), SIFS is minimum interframe space, therefore using SIFS be intended to send
End or node have the limit priority of access radio link, and it, which is equal to, is intended to transmitting terminal or node from transmission shape
State is switched to reception state and can be correctly decoded the required time, or switchs to transmission shape from reception state
Time required for state.Those skilled in the art according to actual needs, can set the second duration t2
Size.
In an alternative embodiment of the invention, the reply data frame can be confirmation word
Accord with (Acknowledgement, ACK), in data communication, it is one kind that receiving terminal issues transmitting terminal
Class control character is transmitted, represents that the data sent have confirmed that reception is errorless.
S14：Continue to intercept the Internet of Things communication shared channel, and listening to the shared letter of Internet of Things communication
Road by the busy state go to the idle condition and in the idle condition last up to the default 3rd when
During long t3, in Internet of Things communication shared channel, the data are sent in the form of information frame.
In specific implementation, if determining that the Internet of Things communicates shared channel in busy state by intercepting
When, it can continue to intercept the state of the Internet of Things communication shared channel, and listening to the Internet of Things communication
Shared channel goes to the idle condition by the busy state and lasts up to preset in the idle condition
During the 3rd duration t3, in Internet of Things communication shared channel, the data are sent in the form of information frame,
First duration t1+n* time slots described in the 3rd duration t3=.
And n is random number, so, can aid in the smooth of communication load.Because if no
In this way, two or more may be intended to transmitting terminals attempts transmission simultaneously, conflict is result in, afterwards in identical
After duration, these are intended to transmitting terminal and attempt to retransmit immediately again, cause a new conflict.People in the art
Member according to actual needs, can set the size of the 3rd duration t3.
Fig. 5 is shown in a kind of timing diagram of eating dishes without rice or wine of channel in the embodiment of the present invention, Fig. 5 from left to right
Respectively it is respectively clearance D IFS between MEDIABUSY periods, distributed frame, competition phase from left to right
(Contention Period, CP) period, information frame FRAME take period, short interFrameGap SIFS
And ACK frames take the period.
Wherein：MEDIABUSY represents that channel is in the period of busy state；DIFS represents to be in institute
State the duration that channel is in idle condition；CP represents to wait the desire transmitting terminal of the channel to be probabilistically assigned
Treat the stage of duration, Slot (time slot) represents that CP is divided into after n parts, per a gap length；Letter
During the breath frame FRAME occupancy periods represent that FRAME takes the channel；Short interFrameGap SIFS tables
Show desire transmitting terminal from FRAME is sent, to reception ACK, the duration of required preparation；ACK frames take
During period represents that ACK takes the channel.
With reference to Fig. 5, the process to above-described data transmission method is described：When base station or
Some terminal, that is, transmitting terminal is intended to, during data to be sent, it can first intercept the shared letter of Internet of Things communication
Whether road is in idle condition, just can be immediately all in idle condition if continuing channel in DIFS durations
It is transmitted information frame；If listen to channel be in MEDIABUSY during, can keep and detect
The state of channel is listened, then needs to wait channel duration free time DIFS+n*slot to send data, that is,
Listening to the channel idle condition is gone to by busy state and lasted up in the idle condition
During DIFS+n*slot, just start to send described information frame.
It should be noted that n is random number, n span has many kinds, and n can be entered by two
Exponential backoff algorithm value processed.N*slot is the competition phase, can be used for solving channel conflict.
In an embodiment of the present invention, the n can pass through binary exponential backoff algorithm value.According to
It is actually needed, those skilled in the art can also use other algorithms for random number n assignment.
In specific implementation, if the reply data frame indicates described information frame transmission mistake or in institute
State when not receiving the reply data frame in the second duration t2, be intended to transmitting terminal and can re-execute intercepts Internet of Things
Whether the shared channel that communicates is in the operation of idle condition, so as to transmit the data again.If
When transmitting the data to default number of times again, it can abandon transmitting the data, and output error is warned
Accuse information.
Understand in summary, by when Internet of Things communication shared channel is in idle condition and reaches default first
When long, the data are sent to include the form of information frame for the identification information for being intended to transmitting terminal, and the
After two durations, when receiving the instruction described information frame correct reply data frame of transmission, it is determined that completing the number
According to transmission, can avoid Network with Random Multiple Access System, Radio Resource connection foundations, the offer of identity, add
Close startup, the transmission of data, the Connection Release of Radio Resource these communication steps, it is logical so as to reduce
Instruction overhead during letter, it is possible to improve the efficiency of communication system.
To cause those skilled in the art to more fully understand and realizing the present invention, it is also provided below can be real
The device of the transmission method of data in existing above-mentioned wireless cellular network, as shown in fig. 6, described device can be with
Including：Channel sense unit 61, data transmission unit 62 and determining unit 63, wherein：
Whether the channel sense unit 61 is big in idle condition suitable for intercepting Internet of Things communication shared channel
Default first duration, wherein, the Internet of Things communication shared channel is provided by base station, described suitable for transmission
Data；
The data transmission unit 62, suitable for reaching institute when Internet of Things communication shared channel is in idle condition
During the first duration stated, in Internet of Things communication shared channel, the number is sent in the form of information frame
According to, and described information frame includes the identification information of desire transmitting terminal；
The determining unit 63, during suitable for receiving reply data frame in default second duration, and it is described
When reply data frame indicates that the transmission of described information frame is correct, it is determined that complete the transmission of the data, described the
It is long for the moment to be more than second duration.
In specific implementation, the channel sense unit 61 is further adapted for when the determination Internet of Things communication is shared
When channel is in busy state, continue to intercept the Internet of Things communication shared channel；
The data transmission unit 62, is further adapted for listening to the Internet of Things communication shared channel by described numerous
Busy condition go to the idle condition and in the idle condition last up to default three duration when, in institute
State in Internet of Things communication shared channel, the data are sent in the form of information frame；3rd duration=described
First duration+n* time slots, n is random number.
In specific implementation, the n passes through binary exponential backoff algorithm value.
In specific implementation, gap between a length of distributed frame when described first.
In specific implementation, a length of short interFrameGap when described second.
In specific implementation, described device can also include：First data retransmission unit 64, suitable for working as
When stating reply data frame instruction described information frame transmission mistake so that the channel sense unit 61 is performed and detectd
Listen whether Internet of Things communication shared channel is in the operation of idle condition, to transmit the data again.
In specific implementation, described device can also include：Second data retransmission unit 65, suitable for working as
When not receiving the reply data frame in second duration so that the channel sense unit 61 is performed and detectd
Listen whether Internet of Things communication shared channel is in the operation of idle condition, to transmit the data again.
In specific implementation, described device can also include：Timing unit 66, resends suitable for record
The number of times of the data；
Warning unit 67, it is described suitable for when resending the data to default number of times, abandoning transmission
Data, and output error warning message.
In specific implementation, the reply data frame is ACK frames.
In specific implementation, it is described be intended to transmitting terminal identification information storage in described information frame MAC header or
In packet data convergence protocol.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in can with computer
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (20)
1. the transmission method of data in a kind of wireless cellular network, it is characterised in that including：
Intercept whether Internet of Things communication shared channel reaches default first duration in idle condition, wherein, institute
State Internet of Things communication shared channel to be provided by base station, suitable for transmitting the data；
When Internet of Things communication shared channel reaches first duration in idle condition, in the Internet of Things
In the shared channel that communicates, the data are sent in the form of information frame, and described information frame includes being intended to
The identification information of transmitting terminal；
Preset after described information frame is sent in the second duration and receive reply data frame, and the response
When data frame indicates that the transmission of described information frame is correct, it is determined that the transmission of the data is completed, described first
Duration is more than second duration.
2. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that also wrap
Include：
When it is determined that Internet of Things communication shared channel is in busy state, continue to intercept the Internet of Things communication altogether
Enjoy channel, and the free time is gone to by the busy state listening to the Internet of Things shared channel that communicates
State and in the idle condition last up to default three duration when, in the shared letter of Internet of Things communication
On road, the data are sent in the form of information frame；3rd duration is equal to time slot and a random number
Product again with the first duration sum.
3. the transmission method of data in wireless cellular network according to claim 2, it is characterised in that described
Random number passes through binary exponential backoff algorithm value.
4. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
Gap between a length of distributed frame when first.
5. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
A length of short interFrameGap when second.
6. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that also wrap
Include：
When the reply data frame indicates described information frame transmission mistake, re-execute and intercept Internet of Things communication altogether
The operation whether channel is in idle condition is enjoyed, to transmit the data again.
7. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that also wrap
Include：When not receiving the reply data frame in second duration, re-execute intercept Internet of Things lead to
Believe whether shared channel is in the operation of idle condition, to transmit the data again.
8. the transmission method of data in the wireless cellular network according to claim 6 or 7, it is characterised in that
Also include：When transmitting the data to default number of times again, abandon transmitting the data, and it is defeated
Make mistake warning message.
9. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
Reply data frame is ACK frames.
10. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
The identification information for being intended to transmitting terminal is stored in MAC header or the packet data convergence association of described information frame
Discuss in layer.
11. the transmitting device of data in a kind of wireless cellular network, it is characterised in that including：
Channel sense unit, suitable for intercept Internet of Things communication shared channel whether reached in idle condition it is default
First duration, wherein, the Internet of Things communication shared channel is provided by base station, suitable for transmitting the data；
Data transmission unit, suitable in idle condition reaching described first when the Internet of Things shared channel that communicates
During duration, in Internet of Things communication shared channel, the data are sent in the form of information frame, and
Described information frame includes being intended to the identification information of transmitting terminal；
Determining unit, reply data is received suitable for being preset after described information frame is sent in the second duration
During frame, and the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that completing the data
Transmission, first duration be more than second duration.
12. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that described
Channel sense unit, is further adapted for when it is determined that Internet of Things communication shared channel is in busy state, after
It is continuous to intercept the Internet of Things communication shared channel；
The data transmission unit, is further adapted for listening to the Internet of Things in the channel sense unit and communicating sharing
Channel goes to the idle condition by the busy state and lasts up to default the in the idle condition
During three durations, in Internet of Things communication shared channel, the data are sent in the form of information frame；
3rd duration be equal to the product of time slot and a random number again with the first duration sum.
13. the transmitting device of data in wireless cellular network according to claim 12, it is characterised in that described
Random number passes through binary exponential backoff algorithm value.
14. the transmitting device of data in wireless cellular network according to claim 13, it is characterised in that described
Gap between a length of distributed frame when first.
15. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that described
A length of short interFrameGap when second.
16. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that also wrap
Include：First data retransmission unit, suitable for indicating described information frame transmission mistake when the reply data frame
When so that the channel sense unit, which is performed, intercepts whether Internet of Things communication shared channel is in idle condition
Operation, to transmit the data again.
17. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that also wrap
Include：Second data retransmission unit, the reply data frame is not received suitable for working as in second duration
When so that the channel sense unit, which is performed, intercepts whether Internet of Things communication shared channel is in idle condition
Operation, to transmit the data again.
18. the transmitting device of data in the wireless cellular network according to claim 16 or 17, it is characterised in that
Also include：Timing unit, the number of times of the data is resend suitable for record；
Warning unit, suitable for when resending the data to default number of times, abandoning transmitting the data,
And output error warning message.
19. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that described
Reply data frame is ACK frames.
20. the transmitting device of data in wireless cellular network according to claim 11, it is characterised in that described
The identification information for being intended to transmitting terminal is stored in MAC header or the packet data convergence association of described information frame
Discuss in layer.
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