CN107231698A - The transmission method of data, terminal and base station in wireless cellular network - Google Patents
The transmission method of data, terminal and base station in wireless cellular network Download PDFInfo
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- CN107231698A CN107231698A CN201610177739.9A CN201610177739A CN107231698A CN 107231698 A CN107231698 A CN 107231698A CN 201610177739 A CN201610177739 A CN 201610177739A CN 107231698 A CN107231698 A CN 107231698A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000001413 cellular effect Effects 0.000 title claims abstract description 33
- 230000006854 communication Effects 0.000 claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 41
- 238000012790 confirmation Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 10
- 239000013256 coordination polymer Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 235000021186 dishes Nutrition 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- 230000011664 signaling Effects 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013468 resource allocation Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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Abstract
The transmission method of data, base station and terminal in a kind of wireless cellular network, the wireless cellular network include the different Internet of Things communication shared channel of two frequencies, respectively up channel and down channel, and methods described includes：When being intended to send data to base station side, intercept whether the up channel is in idle condition；When the up channel is in idle condition, by the up channel, the data are sent in the form of information frame, and described information frame includes the identification information of terminal and the identification information of described information frame；Reply data frame corresponding with described information frame is received by the down channel, and the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that completing the transmission of the data；The reply data frame includes the identification information of described information frame.Instruction overhead in communication process can be reduced using above-mentioned scheme and the efficiency of communication system is improved.
Description
Technical field
The present invention relates to the transmission method of data in wireless communication field, more particularly to a kind of wireless cellular network,
Terminal and base station.
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 signaling consumption for how lowering communication process, improves the effect of communication system
Rate.
To solve the above problems, the embodiments of the invention provide a kind of transmission side of data in wireless cellular network
Method, the wireless cellular network includes the different Internet of Things communication shared channel of two frequencies, respectively up
Channel and down channel, methods described include：When being intended to send data to base station side, intercept described up
Whether channel is in idle condition；When the up channel is in idle condition, pass through the up letter
Road, sends the data in the form of information frame, and described information frame includes the identity letter of terminal
The identification information of breath and described information frame；Received by the down channel corresponding with described information frame
Reply data frame, and the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that completing described
The transmission of data；The reply data frame includes the identification information of described information frame.
Alternatively, the identification information of described information frame is the sequence number of described information frame.
Alternatively, the data include n subdata, and each subdata corresponds to 1 information frame, and n is whole
Number, and n ＞ 1.
Alternatively, the transmission data in the form of information frame, including：Continuously without time interval
Send the n information frame.
Alternatively, one reply data frame of the n information frame correspondence.
Alternatively, after reply data frame corresponding with a described information frame is received, then start under transmission
One information frame.
Alternatively, methods described also includes：When it is determined that the up channel is in busy state, continue
Intercept whether the up channel is in idle condition, and the sky is in listening to the up channel
When not busy state lasts up to default first duration, by the up channel, sent in the form of information frame
The data；First duration is equal to the product of time slot and a random number.
Alternatively, methods described also includes：Sent out when being received in the down going channel in the form of information frame
During the data sent, intercept whether the up channel is in idle condition；
When the up channel is in idle condition, by the up channel, send and described in institute
State the corresponding reply data frame of described information frame that down going channel is received.
The embodiments of the invention provide a kind of terminal, suitable for the transmission of data in wireless cellular network, the nothing
Line Cellular Networks include the different Internet of Things communication shared channel of two frequencies, respectively up channel and descending
Channel, the terminal includes：Channel sense unit, suitable for when being intended to send data to base station side, intercepting
The up channel；Transmitting element, suitable for being listened to when the channel sense unit at the up channel
When idle condition, by the up channel, the data are sent in the form of information frame, and it is described
Information frame includes the identification information of the terminal and the identification information of described information frame；Receiving unit,
Suitable for receiving reply data frame corresponding with described information frame by the down channel；Confirmation unit, is fitted
In receiving reply data frame corresponding with described information frame, and the reply data when the receiving unit
When frame indicates that the transmission of described information frame is correct, it is determined that completing the transmission of the data；The reply data frame
Include the identification information of described information frame.
Alternatively, the identification information of the terminal described information frame is the sequence number of described information frame.
Alternatively, data described in the terminal include n subdata, 1 information of each subdata correspondence
Frame, n is integer, and n ＞ 1.
Alternatively, transmitting element described in the terminal, suitable for the transmission n continuously without time interval
Information frame.
Alternatively, n information frame one reply data frame of correspondence described in the terminal.
Alternatively, the transmitting element, suitable for being received and a described information frame in the receiving unit
After corresponding reply data frame, then start to send next information frame.
Alternatively, the terminal also includes：Control unit, suitable for being listened to when the channel sense unit
When the up channel is in busy state, the channel sense unit is controlled to continue to intercept the up letter
Whether road is in idle condition, and listens to the up channel in described in the channel sense unit
When idle condition lasts up to default first duration, the transmitting element is controlled by the up channel,
The data are sent in the form of information frame；First duration is equal to the product of time slot and a random number.
Alternatively, the receiving unit, is further adapted for receiving in the down going channel and is sent out in the form of information frame
The data sent；
The channel sense unit, is further adapted for when the receiving unit is received in the down going channel to believe
When ceasing the data of form transmission of frame, intercept whether the up channel is in idle condition；
The transmitting element, is further adapted for when the up channel is in idle condition, by described up
Channel, sends reply data frame corresponding with the described information frame received in the down going channel.
Compared with prior art, technical scheme has advantages below：
By when up channel is in idle condition, with the information for the identification information for including terminal
The form of frame sends data, and and instruction described information corresponding with described information frame ought be received in down going channel
When frame transmits correct reply data frame, it is determined that the transmission of the data is completed, this data transmission procedure
Set up without Network with Random Multiple Access System, radio resource allocation and connection, data link connection is set up, identity letter
Offer, ciphering startup, the transmission of data, data link Connection Release, the connection of Radio Resource of breath are released
The communication steps such as put, therefore the instruction overhead in communication process can be reduced, it is possible to improve communication system
Efficiency.
Further, when it is determined that up channel is in busy state, by continuing to intercept the up channel
Whether idle condition is in, and last up to preset in the idle condition listening to the up channel
During the first duration, start with the up channel, the transmission data, and described first duration etc.
In time slot and the product of a random number, thus any two terminal send data time point be typically it is different,
So as to avoid two or more terminals while again attempting to transmit data and the communication contention aware that causes, therefore
Contribute to the smooth of communication load.
Further, if the data sent correspond to more than one information frame, by continuously without time interval
The n information frame is sent, without the state for intercepting and confirming up channel again, so as to save
The time that channel sense and channel are waited, therefore the efficiency of communication system can be improved.
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 that another 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. 7 is the flow signal of the transmission method of data in another wireless cellular network in the embodiment of the present invention
Figure；
The timing diagram of eating dishes without rice or wine of another Internet of Things communication shared channel in Fig. 8 embodiment of the present invention；
A kind of structural representation of terminal in Fig. 9 embodiment of the present invention；
A kind of structural representation of base station in Figure 10 embodiment of the present invention.
Embodiment
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.As can be seen here, it is the transmission of completion 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.
To solve the above problems, the embodiment of the present invention is by when up channel is in idle condition, to wrap
The form of the information frame of identification information containing transmitting terminal sends data, and ought be received and institute in down going channel
Information frame correspondence is stated, and when indicating that described information frame transmits correct reply data frame, it is determined that completing described
The transmission of data, this data transmission procedure is built without Network with Random Multiple Access System, radio resource allocation and connection
Vertical, data link connection foundation, the offer of identity, ciphering startup, the transmission of data, data link 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 shown below, it is described
Wireless cellular network include two frequencies it is different Internet of Things communication shared channel, respectively up channel and under
Row channel, with reference to Fig. 1, the method carried out data transmission by the up channel is introduced,
Methods described may include steps of：
S11：When being intended to send data to base station side, intercept whether the up channel is in idle condition.
In specific implementation, in specific implementation, the up channel is suitable to transmission communication data, can be with
Shared and use by multiple terminals, that is to say, that multiple terminals, which can have permission, uses the up channel
Data, but synchronization are transmitted, there can only be a terminal to take the channel.And the channel can be with
There is provided, such as base station can determine that frequency of the channel etc. passes a parameter, then passed described by base station
Parameter is sent to notify terminal by the form of broadcast.
Used because the up channel can be shared by multiple terminals, therefore in an embodiment of the present invention,
In order to avoid communication contention aware, before data are sent to base station side using the up channel, it can intercept
Whether (Carrier Sense) described up channel is in idle condition.
S12：When the up channel is in idle condition, by the up channel, with information frame
Form sends the data.
In an embodiment of the present invention, can be when the up channel be in idle condition, with information frame
Form, the data are sent on the up channel, it is possible thereby to avoid multiple terminals while using
The up channel sends data.And described information frame includes the identification information of terminal, to mark
Know the identity of terminal so that base station can recognize the terminal for sending the data, consequently facilitating subsequent base stations
Terminal send feedback information corresponding to the identification information.
In specific implementation, in the identification information of terminal, terminal can be identified by diversified forms
Identity, such as the identity of terminal can be identified by the ID of the terminal, terminal can also be passed through
Physical address identifies the identity of terminal, can also identify the identity of terminal by random number.
Because the transmission of information frame and the reception of reply data frame corresponding with described information frame are not same
On bar channel, and base station can arrange the transmission order of the reply data frame, therefore in order to ensure information
Frame and reply data frame can be corresponded to mutually, in specific implementation, and institute can also be included in described information frame
State the identification information of information frame.
In an embodiment of the present invention, the identification information of described information frame can be the sequence of described information frame
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, the data can be encrypted in described information frame.
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 equipment that the UE ID are used for identification transmission data, this is due to that can select suitable after opening of device
Wireless network and cell, and set up connection, and connect process of setting up and can be related to and know equipment identities, mutually
Authenticate and generate ex curia key, temporary identity distribution etc. step, the UE ID can be interim
Identity information, or permanent identity information., can in order to prevent from attacking and improve the security of data
So that the data to be encrypted using key, receiving terminal is received after the data after encryption, Ke Yitong
Cross UE ID and obtain the key consistent with the transmitting terminal, to decode the data after the encryption；The FCS
For wrapping detection by mistake.
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.Also, in up channel
The information frame of upper transmission, entrained device identification UE ID can be the mark of terminal in it；Under
The information frame sent on row channel, entrained device identification UE ID can also be the mark of base station in it
Know, according to the different and different of transmitting terminal.In an embodiment of the present invention, refer to can be for the terminal
Exchange the computer equipment of data, including but not limited to mobile phone, notebook, tablet personal computer and vehicle mounted electric
The equipment such as brain.
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：Reply data frame corresponding with described information frame is received by the down channel, and it is described
When reply data frame indicates that the transmission of described information frame is correct, it is determined that completing the transmission of the data.
In specific implementation, in order to know the situation of data transfer, it can be connect by the down channel
Reply data frame corresponding with described information frame is received, and the reply data frame indicates that described information frame is passed
When sending correct, it is determined that completing the transmission of the data.
In specific implementation, if receiving the data sent in the form of information frame in the down going channel
When, it can also first intercept whether the up channel is in idle condition, and then at the up channel
When idle condition, then by the up channel, transmission is received with described in the down going channel
The corresponding reply data frame of described information frame, that is to say, that on the uplink channel, either send letter
Breath frame still sends reply data frame or other frames, can first carry out intercepting for channel status, only
Have when channel is in idle condition, can just directly transmit the frame.And if listened to described up
Whether channel can continue to intercept the up channel in idle condition, and listening in busy
The up channel in the idle condition last up to default first duration when, can be by described
Row channel sends the reply data frame；The first duration t1 is equal to multiplying for the time slot and a random number
Product.
Mutually it can correspond to or match in order that obtaining information frame and being intended to the reply data frame, that is, cause
Terminal may determine that whether received reply data frame replys itself transmitted information frame, in this hair
In a bright embodiment, the identification information of described information frame is included in the reply data frame.
In an alternative embodiment of the invention, the reply data frame can be confirmation character
(Acknowledgement, ACK), in data communication, it is a kind of biography that receiving terminal issues transmitting terminal
Defeated class control character, represents that the data sent have confirmed that reception is errorless.
, can be with if determine that the up channel is in busy state by intercepting in specific implementation
Continue to intercept the state of the up channel, and continue listening to the up channel in idle condition
During up to default first duration t1, on the up channel, the data are sent with the form of information frame,
The first duration t1=n* time slots.
In specific implementation, if it is the numerical value determined that n, which is non-random numbers, i.e. n, then two are there may be
It is individual or it is multiple be intended to transmitting terminals simultaneously attempt transmission situations, cause it is described two or it is multiple desire transmitting terminals between
Transmission collision.After identical duration, these are intended to transmitting terminal and attempt to retransmit simultaneously again, cause transmission to be rushed
Dash forward repetition.Therefore, in an embodiment of the present invention, rushed to avoid being intended to generation transmission between transmitting terminal
It is prominent, n is set to random number, the smooth of communication load is can aid in.
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.
A kind of channel that Fig. 5 shows in the embodiment of the present invention is eated dishes without rice or wine timing diagram, the data feedback channel in Fig. 5
(Uplink) from left to right be respectively the MEDIA BUSY periods, competition the phase (Contention Period,
CP) period, information frame FRAME take the period；Down going channel (Downlink) takes for ACK frames
Period.
Wherein：MEDIA BUSY represent that channel is in the period of busy state；CP represents to wait described
The terminal of channel is probabilistically assigned the stage of waiting time, and Slot represents that CP is divided into after n parts, per a
Gap length；During the information frame FRAME occupancy periods represent that FRAME takes the channel；ACK
During the frame occupancy period represents that ACK takes the channel, the transmission of the ACK frames and information frame
Time interval between FRAME transmission is not less than SIFS.
Below with reference to Fig. 5, the data transmission method in the embodiment of the present invention is described in detail：
When some terminal data to be sent, first intercept whether up channel is in idle condition, if
Continuing channel in DIFS durations, all in idle condition, information frame just can be transmitted immediately；If intercepted
During being in MEDIA BUSY to up channel, it can keep and intercept the state of channel, and wait
The data could be sent after channel duration free time n*slot durations.As at least SIFS sent in data
Between be spaced after, ACK frames corresponding with described information frame, and the ACK frames are received by down going channel
Indicate that described information frame sends correct, then complete the transmission of data herein.
Understand in summary, by when up channel is in idle condition, to include the identity of terminal
The form of the information frame of identification information sends data, and corresponding with described information frame when being received in down going channel
And when indicating that described information frame transmits correct reply data frame, it is determined that the transmission of the data is completed, this
One data transmission procedure is set up without Network with Random Multiple Access System, radio resource allocation and connection, data link connects
Foundation, the offer of identity information, ciphering startup, the transmission of data, data link Connection Release, nothing are provided
These communication steps of the Connection Release of line resource, therefore the instruction overhead in communication process can be reduced, and can
To improve the efficiency of communication system.
In specific implementation, the data can include n subdata, and each subdata correspondence 1 is believed
Frame is ceased, n is integer, and n ＞ 1, that is to say, that the data are needed by multiple information frames, to realize
Send.In such a case, it is possible to the continuous transmission n information frame without time interval.
Due to the transmission of information frame and the reception of reply data frame be by two separate channels, therefore
In transmission continuously without the time interval n information frame, the n information frame can correspond to one should
Answer data frame.
In order to save the time that channel sense and channel are waited, in an embodiment of the present invention, it can work as
After preceding information frame is sent, directly start to send next information frame, then down channel receive with
During the corresponding reply data frame of the n information frame, it is determined that the transmission of this data is completed, without
Channel status is intercepted again, so as to save the duration of channel sense and wait, therefore can improve communication
The efficiency of system.
In order to avoid because between the transmission of information frame and reply data frame receive can not correspond to and caused by
Data transmission fault, in an alternative embodiment of the invention, can also received and a described information frame pair
After the reply data frame answered, then start to send next information frame.
In specific implementation, if the reply data frame indicates described information frame transmission mistake or not received
During to the reply data frame, whether terminal can be re-executed intercepts the up channel in idle shape
The operation of state, so as to transmit the data again.If transmitting the data again to default time
During number, it can abandon transmitting the data, and output error warning message.
A kind of timing diagram of eating dishes without rice or wine of channel in the embodiment of the present invention is the following provided, what need herein were sent
Data correspond to 2 information frames, as shown in fig. 6, on the up channel (uplink) in Fig. 6 from left to right
Respectively the MEDIA BUSY periods, competition (Contention Period, CP) period phase, first
Information frame FRAME1 takes the period and second information frame FRAME2 takes the period；Down channel
(Downlink) period is taken on from left to right for ACK frames.
Wherein：MEDIA BUSY represent that channel is in the period of busy state；CP represents to wait described
The terminal of channel is probabilistically assigned the stage of waiting time, and Slot represents that CP is divided into after n parts, per a
Gap length；During FRAME represents that information frame takes the channel；The ACK frames occupancy period represents
Base station sends ACK.
Below with reference to Fig. 6, the data transmission method in the embodiment of the present invention is described in detail：When a certain
During individual terminal data to be sent, first intercept whether up channel is in idle condition, if channel is in sky
Not busy state, information frame just can be transmitted immediately, in data more than 2 information frames of correspondence of transmission,
First information frame can first be sent, then in the middle of without time interval, directly transmit second information frame.
After at least SIFS time intervals sent in second information frame, received by down going channel and institute
The corresponding ACK frames of information frame are stated, and the ACK frames indicate described first and second information frame hair
Send correctly, then complete the transmission of data herein.
Understand in summary, if during the data correspondence more than one information frame of transmission, by continuously without the time
The transmission n information frame at interval, without the state for intercepting and confirming up channel again, so as to
To save the time that channel sense and channel are waited, therefore the efficiency of communication system can be improved.
To cause those skilled in the art to more fully understand and realizing the present invention, the present invention also provided below
The transmission method of data in another wireless cellular network in embodiment, the wireless cellular network includes two
The different Internet of Things communication shared channel of bar frequency, respectively up channel and down channel, as shown in fig. 7,
Methods described can include：
S71：By the down going channel, data are sent in the form of information frame.
In specific implementation, the data transfer of down channel can be arranged by base station is unified, and the base station can
With the priority according to data, or the sequential that can be received according to information frame is sent out to be arranged in down going channel
The priority of data is sent, wherein, described information frame includes the identification information of base station.
, can be with letter when base station is intended to send data using the down going channel in one embodiment of the invention
The form for ceasing frame sends data.
It is understood that described information frame can use the communication network hierarchical structure shown in Fig. 3 to pass
Defeated, the form of described information frame can also be for as shown in Figures 2 and 4, the simply device identification be base station
Identification information, those skilled in the art may be referred to above example, will not be repeated here.
S72：Reply data frame corresponding with described information frame is received by the up channel, and it is described
When reply data frame indicates that the transmission of described information frame is correct, it is determined that completing the transmission of the data.
Data either are sent in data feedback channel or down going channel, information frame and request reply frame conduct
One overall process.In specific implementation, if base station do not received within the time of setting with it is transmitted
The corresponding reply data frame of information frame, or the reply data frame that receives indicates described information frame hair
Mistake is sent, described information frame can be transmitted again.
In an embodiment of the present invention, if base station is received with described descending by the up channel
The corresponding reply data frame of channel transmitted information frame, and the reply data frame indicates described information
When frame transmission is correct, it may be determined that complete the transmission of the data.
In an embodiment of the present invention, the reply data frame can be ACK frames, in data communication,
It is a kind of transmission class control character that receiving terminal issues transmitting terminal, represents that the data sent have confirmed that reception
It is errorless.
A kind of channel that Fig. 8 shows in the embodiment of the present invention is eated dishes without rice or wine timing diagram, the data feedback channel in Fig. 8
(Uplink) from left to right be respectively the MEDIA BUSY periods, competition the phase (Contention Period,
CP) period and ACK frames take the period；Down going channel (Downlink) is that information frame FRAME is accounted for
Use the period.
Wherein：MEDIA BUSY represent that channel is in the period of busy state；CP represents to wait described
The terminal of channel is probabilistically assigned the stage of waiting time, and Slot represents that CP is divided into after n parts, per a
Gap length, during ACK represents that ACK frames take the channel.FRAME represents an information frame
During taking the channel；Descending channel information frame FRAME delivery time t* and up channel ACK
Frame is ready for sending moment t0Between time interval be not more than SIFS, to constrain transmitted by terminal-pair base station
Information frame response time.
Below with reference to Fig. 8, the data transmission method in the embodiment of the present invention is described in detail：When a certain
During the data to be sent of individual base station, it can start to be transmitted in the form of information frame by down going channel, so
Terminal replys ACK frames on the uplink channel afterwards, and the terminal takes up channel and sends the ACK
During frame, it can first intercept whether up channel is in idle condition, if channel is in idle condition, just
ACK frames can be sent immediately；If listen to up channel be in MEDIA BUSY during, Ke Yiji
It is continuous constantly to intercept the state of channel, and the ACK frames are sent after waiting n * slot durations.When in number
After at least SIFS time intervals of transmission, ACK corresponding with described information frame is received by data feedback channel
Frame, and the ACK frames indicate that described information frame sends correct, then complete the transmission of this data.
To cause those skilled in the art to more fully understand and realizing the present invention, the following providing to realize
The terminal of the transmission method of data in above-mentioned wireless cellular network, as shown in figure 9, being wrapped in the wireless cellular network
Include the different Internet of Things communication shared channel of two frequencies, respectively up channel and down channel, the end
End can include：Channel sense unit 91, transmitting element 92, receiving unit 93 and confirmation unit 94, its
In：
The channel sense unit 91, suitable for when being intended to send data to base station side, intercepting the up letter
Road；
The transmitting element 92, suitable for being in when the channel sense unit 91 listens to the up channel
During idle condition, by the up channel, the data, and the letter are sent in the form of information frame
Breath frame includes the identification information of the terminal and the identification information of described information frame；
The receiving unit 93, suitable for receiving response corresponding with described information frame by the down channel
Data frame；
The confirmation unit 94, suitable for receiving answer corresponding with described information frame when the receiving unit 93
Answer data frame, and the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that completing the number
According to transmission.
In specific implementation, the identification information of described information frame is the sequence number of described information frame.
In specific implementation, the data include n subdata, 1 information frame of each subdata correspondence, n
For integer, and n ＞ 1.
In specific implementation, the transmitting element 92, suitable for the transmission n letter continuously without time interval
Cease frame.
In specific implementation, one reply data frame of the n information frame correspondence.
In specific implementation, the transmitting element 92, suitable for being received and one in the receiving unit 93
After the corresponding reply data frame of described information frame, then start to send next information frame.
In specific implementation, described device can also include：Control unit 95, suitable for being detectd when the channel
When listening the unit 91 to listen to the up channel and be in busy state, control the channel sense unit 91 after
It is continuous whether to intercept the up channel in idle condition, and listen to institute in the channel sense unit 91
State up channel in the idle condition last up to default first duration when, control the transmitting element 92
By the up channel, the data are sent in the form of information frame；First duration be equal to time slot with
The product of one random number.
In specific implementation, the receiving unit 93 is further adapted for receiving with information frame in the down going channel
Form send data；
The channel sense unit 91, is further adapted for when the receiving unit 93 is received in the down going channel
When the data sent in the form of information frame, intercept whether the up channel is in idle condition；
The transmitting element 92, is further adapted for when the up channel is in idle condition, on described
Row channel, sends reply data frame corresponding with the described information frame received in the down going channel.
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 base station of existing above-mentioned data transmission method, as shown in Figure 10, the wireless cellular network includes two frequencies
Different Internet of Things communication shared channels, respectively up channel and down channel, the base station can include：
Data transmission unit 101, frame receiving unit 102 and transmission confirmation unit 103, wherein：
The data transmission unit 101, suitable for by the down going channel, number is sent in the form of information frame
According to；
The frame receiving unit 102, suitable for receiving answer corresponding with described information frame by the up channel
Answer data frame；
The transmission confirmation unit 103, suitable for being connect in the frame receiving unit 102 by the up channel
Reply data frame corresponding with described information frame is received, and the reply data frame indicates that described information frame is passed
When sending correct, it is determined that completing the transmission of the data.
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 (16)
1. the transmission method of data in a kind of wireless cellular network, it is characterised in that the wireless cellular network includes
The different Internet of Things communication shared channel of two frequencies, respectively up channel and down channel, the side
Method includes：
When being intended to send data to base station side, intercept whether the up channel is in idle condition；
When the up channel is in idle condition, by the up channel, sent out in the form of information frame
The data are sent, and described information frame includes the identification information of terminal and the mark of described information frame
Know information；
Reply data frame corresponding with described information frame, and the answer number are received by the down channel
When indicating that the transmission of described information frame is correct according to frame, it is determined that completing the transmission of the data；The answer number
Include the identification information of described information frame according to frame.
2. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
The identification information of information frame is the sequence number of described information frame.
3. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that described
Data include n subdata, corresponding 1 information frame of each subdata, and n is integer, and n ＞ 1.
4. the transmission method of data in wireless cellular network according to claim 3, it is characterised in that described
The data are sent in the form of information frame, including：The transmission n letter continuously without time interval
Cease frame.
5. the transmission method of data in wireless cellular network according to claim 4, it is characterised in that described
N information frame one reply data frame of correspondence.
6. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that receiving
To after reply data frame corresponding with a described information frame, then start to send next information frame.
7. 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 the up channel is in busy state, continue to intercept whether the up channel is located
Default is lasted up in idle condition, and listening to the up channel in the idle condition
During one duration, by the up channel, the data are sent in the form of information frame；Described first
Duration is equal to the product of time slot and a random number.
8. the transmission method of data in wireless cellular network according to claim 1, it is characterised in that also wrap
Include：When receiving the data to be sent in the form of information frame in the down going channel, intercept on described
Whether row channel is in idle condition；
When the up channel is in idle condition, by the up channel, send with described described
The corresponding reply data frame of described information frame that down going channel is received.
9. a kind of terminal, the transmission suitable for data in wireless cellular network, it is characterised in that the wireless cellular network
Include the different Internet of Things communication shared channel of two frequencies, respectively up channel and down channel,
The terminal includes：
Channel sense unit, suitable for when being intended to send data to base station side, intercepting the up channel；
Transmitting element, suitable for when the channel sense unit listen to the up channel be in idle condition when,
By the up channel, the data are sent in the form of information frame, and described information frame includes
The identification information of the terminal and the identification information of described information frame；
Receiving unit, suitable for receiving reply data frame corresponding with described information frame by the down channel；
Confirmation unit, suitable for receiving reply data frame corresponding with described information frame when the receiving unit,
And the reply data frame is when indicating that the transmission of described information frame is correct, it is determined that completing the transmission of the data；
The reply data frame includes the identification information of described information frame.
10. terminal according to claim 9, it is characterised in that the identification information of described information frame is described
The sequence number of information frame.
11. terminal according to claim 10, it is characterised in that the data include n subdata, often
Individual subdata 1 information frame of correspondence, n is integer, and n ＞ 1.
12. terminal according to claim 11, it is characterised in that the transmitting element, suitable for continuously without when
Between the transmission n information frame that is spaced.
13. terminal according to claim 12, it is characterised in that one response of the n information frame correspondence
Data frame.
14. terminal according to claim 9, it is characterised in that the transmitting element, suitable for being connect described
Receive unit to receive after reply data frame corresponding with a described information frame, then start to send next
Information frame.
15. terminal according to claim 9, it is characterised in that also include：Control unit, suitable for working as
When stating channel sense unit and listening to the up channel and be in busy state, the channel sense is controlled
Whether unit continues to intercept the up channel in idle condition, and is detectd in the channel sense unit
Hear the up channel in the idle condition last up to default first duration when, control is described
Transmitting element sends the data by the up channel in the form of information frame；When described first
The long product for being equal to time slot and a random number.
16. terminal according to claim 9, it is characterised in that the receiving unit, is further adapted for described
Down going channel receives the data sent in the form of information frame；
The channel sense unit, is further adapted for when the receiving unit is received with information in the down going channel
During the data that the form of frame is sent, intercept whether the up channel is in idle condition；
The transmitting element, is further adapted for, when the up channel is in idle condition, passing through the up letter
Road, sends reply data frame corresponding with the described information frame received in the down going channel.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199941A (en) * | 2017-12-29 | 2018-06-22 | 北京纳米维景科技有限公司 | A kind of CAN bus communication means based on CAN2.0B |
| CN110430097A (en) * | 2019-08-07 | 2019-11-08 | 聚好看科技股份有限公司 | Instruct transmission method, apparatus and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902822A (en) * | 2010-07-22 | 2010-12-01 | 北京交通大学 | Base station-assisted mobile terminal equipment autonomously accessing method and device |
| CN101925192A (en) * | 2010-07-27 | 2010-12-22 | 新邮通信设备有限公司 | Signal channel access method |
| CN101932009A (en) * | 2009-06-18 | 2010-12-29 | 中兴通讯股份有限公司 | Report of scheduling information frame in wireless communication system and acquisition method |
| CN101951597A (en) * | 2010-08-13 | 2011-01-19 | 北京邮电大学 | Method, device and system for communicating among different types of networks |
| US20130114548A1 (en) * | 2008-03-10 | 2013-05-09 | Marvell International Ltd. | Coexistence and collocation of remote network and local network radios |
| EP2690876A2 (en) * | 2011-03-22 | 2014-01-29 | Electronics And Telecommunications Research Institute | Heterogeneous network-based linked broadcast content transmitting/receiving device and method |
-
2016
- 2016-03-25 CN CN201610177739.9A patent/CN107231698B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130114548A1 (en) * | 2008-03-10 | 2013-05-09 | Marvell International Ltd. | Coexistence and collocation of remote network and local network radios |
| CN101932009A (en) * | 2009-06-18 | 2010-12-29 | 中兴通讯股份有限公司 | Report of scheduling information frame in wireless communication system and acquisition method |
| CN101902822A (en) * | 2010-07-22 | 2010-12-01 | 北京交通大学 | Base station-assisted mobile terminal equipment autonomously accessing method and device |
| CN101925192A (en) * | 2010-07-27 | 2010-12-22 | 新邮通信设备有限公司 | Signal channel access method |
| CN101951597A (en) * | 2010-08-13 | 2011-01-19 | 北京邮电大学 | Method, device and system for communicating among different types of networks |
| EP2690876A2 (en) * | 2011-03-22 | 2014-01-29 | Electronics And Telecommunications Research Institute | Heterogeneous network-based linked broadcast content transmitting/receiving device and method |
Non-Patent Citations (1)
| Title |
|---|
| IEEE COMPUTER SOCIETY: "《IEEE Std 802.11-2012》", 29 March 2012 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199941A (en) * | 2017-12-29 | 2018-06-22 | 北京纳米维景科技有限公司 | A kind of CAN bus communication means based on CAN2.0B |
| CN110430097A (en) * | 2019-08-07 | 2019-11-08 | 聚好看科技股份有限公司 | Instruct transmission method, apparatus and system |
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|---|---|
| CN107231698B (en) | 2020-04-07 |
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