CN106656435B - A kind of data head passes, repeating method - Google Patents
A kind of data head passes, repeating method Download PDFInfo
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- CN106656435B CN106656435B CN201610937005.6A CN201610937005A CN106656435B CN 106656435 B CN106656435 B CN 106656435B CN 201610937005 A CN201610937005 A CN 201610937005A CN 106656435 B CN106656435 B CN 106656435B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The present invention provides a kind of data head to pass, repeating method, the data block of X bit is generated into N number of first kind sub-block comprising X/N bit, then, the Second Type sub-block comprising X/N bit is generated based on N number of first kind sub-block, in such a way that contraposition bit carries out exclusive or, is obtained based on the Second Type sub-block N number of comprising X/N2Next N number of first kind sub-block is formed N number of transmission sub-block group by the third type sub-block of bit with N number of third type sub-block respectively, and defeated in the upload of N number of transmission wave beam.It attempts to restore the first kind sub-block in the presence of mistake using the third type sub-block received in receiving end.If be not successfully recovered yet, retransmitted after the third type sub-block received in worst Y sub- data chunks of Signal to Interference plus Noise Ratio is replaced with Second Type sub-block.Method of the invention can effectively increase the robustness of data transmission to adapt to the business demand of 5G communication system.
Description
Technical field
The present invention relates to the transmission side datas in mobile communication field, more particularly to a kind of 5th generation wireless communication system
Method.
Background technique
With the rise of intelligent terminal and enriching for wireless data application business, data user's number in wireless communication system
It is significantly increased, data content is no longer confined to traditional text or image, and future customer is to high definition video, mobile TV etc.
The demand of multimedia service is more and more, and wireless network traffic is caused to show the situation of explosive growth.According to market institution
Prediction, coming 10 years, wireless data service will increase by 500~1000 times, and increase by 1.6~2 times every year on average, this is to wireless communication
More stringent requirements are proposed for the network capacity of system.
Towards the year two thousand twenty and future, mobile Internet and internet of things service will be as the main drivings of Mobile Communication Development
Power.5G will meet people in the diversified business demand in the various regions such as inhabitation, work, leisure and traffic, even if intensively living
Quarter, office, stadium, outdoor rally, subway, through street, high-speed rail and wide area covering etc. have ultra high flux density, superelevation
Connect number density, the scene of ultrahigh-mobility feature, or user provide ultra high-definition video, virtual reality, augmented reality,
The ultimate attainment business experience such as cloud desktop, game on line.At the same time, 5G will also penetrate into Internet of Things and various industries field, with work
Industry facility, Medical Instruments, the fusion of vehicles even depth, effectively meet the diversified industry of the vertical industries such as industry, medical treatment, traffic
Business demand is realized really " all things on earth interconnection ".
5G will solve differentiation performance indicator bring challenge under diversified application scenarios, the property that different application scene faces
Energy challenge is different, and user experience rate, flux density, time delay, efficiency and connection number are all likely to become choosing for different scenes
War property index.From mobile Internet and the main application scenarios of Internet of Things, business demand and challenge, continuous wide area can be summarized
Covering, hot spot high capacity, the big connection of low-power consumption and the highly reliable four 5G major technique scene of low time delay.
There are many ways to meeting 5G demand, specifically includes that and promotes spectrum efficiency, improve network density, increase system band
Wide, IN service shunting, reduction system broadcasts control overhead etc., wherein an effective means for promoting spectrum efficiency is exactly to the greatest extent may be used
Can improve data transfer reliability, frequency spectrum resource between especially traditional business correspondence master 300MHz~3GHz to be used
Extremely nervous situation is shown, can no longer meet the demand of future wireless system, future will use higher carrier frequency
Rate is communicated, such as 28GHz, 45GHz etc., and this high frequency channel has Free propagation loss larger, is easy to be inhaled by oxygen
It receives, being declined by rain influences the disadvantages of big, has seriously affected the covering performance of high frequency communication system.But since high-frequency communication is corresponding
Carrier frequency there is shorter wavelength, it is possible to more antenna elements can be accommodated on guarantor unit's area, and more
Antenna element means that antenna gain can be improved using the method for wave beam forming, to guarantee the spreadability of high-frequency communication
Energy.In high-frequency communication scene, generallys use extremely narrow wave beam and send data, if there is sending and receiving end wave beam due to channel circumstance
Suddenly change cause misalignment situation occur, the performance of communication can be seriously affected.
Summary of the invention
It is an object of the invention to overcome data transmission credibility present in the 5th generation wireless communication system poor,
A kind of data transmission method is provided.
In order to achieve the above object, the invention is realized by the following technical scheme:
A kind of data head passes, repeating method, comprising the following steps: 1) the first communication node generates the number that length is X bit
According to block, the data block includes cyclic redundancy check information；2) block generates N number of first kind sub-block based on the data,
Number is 1 to N, and each first kind sub-block includes X/N bit, N number of first kind sub-block and
Collection is equal to the data block, and wherein N is the integer greater than 1, and X is the integer greater than 1, and is the multiple of N；3) based on described N number of
First kind sub-block generates a Second Type sub-block in such a way that contraposition bit carries out exclusive or, and described second
Type sub-block includes X/N bit；4) N number of third type sub-block is obtained based on the Second Type sub-block,
Number is 1 to N, and each third type sub-block includes X/N2A bit, N number of third type sub-block and
Collection is equal to the Second Type sub-block；5) first communication node forms N number of transmission sub-block group, wherein first
A sub- data chunk is made of first first kind sub-block and the third type sub-block, second subnumber
It is made of according to block group second first kind sub-block and the third type sub-block, and so on, n-th
Data chunk first kind sub-block described in n-th and the third type sub-block are constituted；6) first communication
Node by N number of sub-block group described in N number of transmission multi-beam transmission to the second communication node, wherein first sub- data chunk is logical
First transmission multi-beam transmission is crossed, second sub- data chunk passes through second transmission multi-beam transmission, and so on, n-th
Data chunk sends wave beam by n-th and sends；7) second communication node receives N number of sub-block group, if root
Cyclic redundancy check can simultaneously be passed through after being decoded according to the bit stream that the N number of first kind sub-block received is formed,
Second communication node is properly received the data block；If according to the N number of first kind sub-block shape received
At bit stream be decoded after fail through cyclic redundancy check, second communication node, which fails, receives the data
Block, then second communication node obtains the Second Type subdata by the third type sub-block received
Then block attempts M first kind sub-block for restoring to have mistake by exclusive or mode, then if can be superfluous by recycling
Remaining verification, second communication node are properly received the data block, and otherwise, second communication node receives the data block
Failure, wherein M is the integer more than or equal to 1 and less than or equal to N；If 8) received successfully, the second communication node feedback
Successful information is received to first communication node；If reception failure, the second communication node feedback reception failure information
To first communication node, the reception failure information, which includes at least to describe to receive in N number of sub-block group, believes dry make an uproar
Than the serial number of worst Y sub- data chunks, wherein Y is the integer for being less than N more than or equal to 1；9) first communication node connects
After receiving the reception failure information, by the third type sub-block Second Type in the Y sub- data chunks
Sub-block replacement, obtains Y re-transmission sub-block group, and first communication node is retransmitted described Y by time division way
Sub-block group is sent to second communication node；10) second communication node receives the Y re-transmission sub-block
After group, sub-block group is retransmitted by described Y and carries out Combined Treatment with the N number of sub-block group received before, finally
Determine whether the data block receives success.
Further, the data block is the coded bit stream encoded by physical layer.
Further, the first kind sub-block is extracted from the data block equal intervals, or from the number
It is chosen according to the initial position sequence of block.
Further, N number of sub-block group is sent using time division way, and first communication node is logical by signaling
Know that each sub-block group of second communication node sends the modulation coding scheme used.
Further, before first communication node generates the data block, first communication node receives described
The feedback information that second communication node is sent, the feedback information notify first communication node that can be used to described second
Communication node sends the candidate of data and sends beam set.
Further, the candidate beam set that sends includes Z transmission wave beam, wherein Z is the integer more than or equal to N.
Further, first communication node and second communication node pass through pre-defined rule or negotiation mode from institute
It states candidate send in beam set and selects N number of transmission wave beam.
Further, second communication node repeats n times and sends the reception failure information.
Further, first communication node send N number of sub-block group to second communication node it
Before, pass through the transmission mode information of data block described in the second communication node described in informing physical downlink control channel, wherein send
The transmission wave beam that the physical down control information uses is identical as the transmission wave beam that first sub- data chunk uses is sent.
Further, first communication node send N number of sub-block group to second communication node it
Before, the corresponding demodulated reference signal of N number of sub-block group is sent to second communication node.
Further, first communication node is in the hair for sending the first kind sub-block in each sub-block group
Sending power is N times of the transmission power of third type sub-block.
Further, first communication node is sending each first kind sub-block retransmitted in sub-block group
Send power be equal to Second Type sub-block transmission power.
Further, it is N-Y that first communication node, which sends the transmission wave beam that the Y re-transmission sub-block groups use,
A, the N-Y transmission wave beam is by subtracting the minimum sub-block pair of the Y received signal to noise ratio in N number of transmission wave beam
The remaining N-Y of the transmission wave beam answered sends wave beam and constitutes.
Further, second communication node by described Y re-transmission sub-block group with receive before it is described N number of
Sub-block group carry out Combined Treatment, specifically include by described Y retransmit sub-block group in first kind sub-block and
First kind sub-block in the corresponding Y sub- data chunks merges the Y first kind updated after processing
Type sub-block obtains the Second Type sub-block that described Y retransmits in sub-block group with based on X sub- data chunks
Second Type sub-block merge the Second Type sub-block that is updated after processing, be then based on Y of update
The Second Type sub-block of first kind sub-block and the best N-Y sub-block and update of the quality of reception is according to step
It is rapid 7) in process confirm whether the data packet receives success, wherein N-Y indicates that N number of sub-block group-Y retransmits subdata
Block group.
The beneficial effects of the present invention are: compared with prior art, can be had using the method for the invention and device (system)
Effect increases the robustness of data transmission to adapt to the business demand of the 5th generation wireless communication system.
Detailed description of the invention
Fig. 1 is the flow chart of data transmission method；
Fig. 2 is first kind sub-block generating mode schematic diagram；
Fig. 3 is Second Type sub-block generating mode schematic diagram；
Fig. 4 is sub-block group sending method schematic diagram；
Fig. 5 is that sub-block group corresponds to pilot tone sending method schematic diagram.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
As shown in Fig. 1, method flow of the invention is as follows:
Step 102, the first communication node generates the data block that length is X bit, and the data block includes cyclic redundancy school
Test information；Step 104, block generates N number of first kind sub-block based on the data, and number is 1 to N, each described first
Type sub-block includes (X/N) a bit, and the union of N number of first kind sub-block is equal to the data block, wherein N
For the integer greater than 1, X is the integer greater than 1, and is the multiple of N；
Step 106, one is generated based on N number of first kind sub-block, in such a way that contraposition bit carries out exclusive or
A Second Type sub-block, the Second Type sub-block include (X/N) a bit；
Step 108, N number of third type sub-block is obtained based on the Second Type sub-block, number is 1 to N, often
A third type sub-block includes ((X/N)/N) a bit, and the union of N number of third type sub-block is equal to institute
State Second Type sub-block；
Step 110, first communication node forms N number of transmission sub-block group, wherein first sub- data chunk by
First first kind sub-block and the third type sub-block are constituted, and second sub- data chunk is by second
The first kind sub-block and the third type sub-block are constituted, and so on, n-th sub-block group is by N
A first kind sub-block and the third type sub-block are constituted；
Step 112, first communication node is logical to second by N number of sub-block group described in N number of transmission multi-beam transmission
Node is believed, wherein first sub- data chunk, by first transmission multi-beam transmission, second sub- data chunk passes through second
Multi-beam transmission is sent, and so on, n-th sub-block group sends wave beam by n-th and sends；
Step 114, second communication node receives N number of sub-block group, if described N number of according to what is received
First kind sub-block formed bit stream be decoded after and can pass through cyclic redundancy check, second communication node at
Function receives the data block；If be decoded according to the bit stream that the N number of first kind sub-block received is formed
After fail through cyclic redundancy check, second communication node, which fails, receives the data block, then it is described second communication
Node passes through the third type sub-block received and obtains the Second Type sub-block, then passes through exclusive or mode
M first kind sub-block for restoring to have mistake is attempted, then if cyclic redundancy check, second communication can be passed through
Node is properly received the data block, and otherwise, second communication node receives the data block failure, wherein M be greater than etc.
In 1 and be less than or equal to N integer；
Step 116, if received successfully, the second communication node feedback reception successful information gives first communication section
Point；If reception failure, the second communication node feedback reception failure information gives first communication node, and the reception is lost
It loses information and includes at least the serial number for describing to receive worst Y sub- data chunk of Signal to Interference plus Noise Ratio in N number of sub-block group,
Middle Y is the integer for being less than N more than or equal to 1；
Step 118, after first communication node receives the reception failure information, by the Y sub- data chunks
In third type sub-block replaced with the Second Type sub-block, obtain Y re-transmission sub-block group, described first
The Y re-transmission sub-block group is sent to second communication node by time division way by communication node；
Step 120, after second communication node receives the Y re-transmission sub-block group, by Y re-transmission
Data chunk carries out Combined Treatment with the N number of sub-block group received before, finally determines whether the data block connects
Harvest function.
Embodiment 1
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, finally determines whether the data block receives success.
Embodiment 2
Base station receives the feedback information of terminal transmission, and the feedback information notifies the base station that can be used to the terminal
It sends the candidate of data and sends beam set, candidate's transmission set includes 10 transmission wave beams and these send wave beam and correspond to
Reception quality information.
Base station is according to four transmission wave beams of selection are used to send to terminal from candidate's transmission set with terminal treaty rule
Data block, such as four transmission wave beams that the selection quality of reception is best, or chosen according to scheduled pattern.
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.Preferably, terminal repeats four in time
It is secondary to send the reception failure information, improve the reception power probability of the information.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, finally determines whether the data block receives success.
Embodiment 3
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
Base station passes through informing physical downlink control channel terminal institute before sending four sub- data chunks to terminal
State the transmission mode information (such as dividing four sub- data chunk transmission, the building form etc. of sub-block group) of data block, wherein
Send the transmission wave beam and send the send wave that first sub- data chunk uses that the physical down control information uses
Shu Xiangtong avoids terminal Data reception errors as caused by decoding PDCCH time delay.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, finally determines whether the data block receives success.
Embodiment 4
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
As shown in Fig. 5, base station sends four subdatas before sending four sub- data chunks to terminal
The corresponding demodulated reference signal of block group facilitates terminal quickly to carry out channel estimation to terminal, reduces the decoding delay of terminal, meets
5G low time delay demand.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, finally determines whether the data block receives success.
Embodiment 5
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
As shown in Fig. 5, base station sends four subdatas before sending four sub- data chunks to terminal
The corresponding demodulated reference signal of block group facilitates terminal quickly to carry out channel estimation to terminal, reduces the decoding delay of terminal, meets
5G low time delay demand.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, specifically includes first, second re-transmission subdata
First kind sub-block in block group and the first kind sub-block in corresponding first, second sub- data chunk into
First, second first kind sub-block updated after row merging treatment, by first, second re-transmission subdata
Second Type sub-block in block group merges place with the Second Type sub-block obtained based on four sub- data chunks
The Second Type sub-block updated after reason, be then based on first of update, second first kind sub-block and
Receive three for the first time, the Second Type sub-block of the 4th sub-block and update is according to the process in step 7)
Confirm whether the data packet receives success.
Embodiment 6
Base station generates the data block comprising 160 bits, and the data block includes the redundancy check information of 16 bits, attempts
The terminal for receiving the data block must can just be confirmed whether successfully to obtain the number by the verification based on redundancy check information
According to block, it is preferable that the data block is the coded bit stream encoded by physical layer.
Block generates four respectively comprising the first kind sub-block and a length of 40 bits based on the data for base station
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or chosen from the initial position of data block sequence, as shown in Fig. 2, each first kind sub-block packet
The partial content of the data block is included, four first sub-block unions are equal to the data block, and intersection is empty set.Such as figure
Shown in 3, four first kind subtype blocks obtain Second Type sub-block by way of aligning bit exclusive or.
Base station is based on the Second Type sub-block and obtains four third type sub-blocks, and number is 1 to 4, each
The third type sub-block includes 10 bits, and the union of four thirds type sub-block is equal to second class
Type sub-block, intersection are empty set.
First first kind sub-block and first third type sub-block are formed first subdata by base station
Second first kind sub-block and second third type number of words block are formed second sub- data chunk by block group, by the
Three first kind sub-blocks and third third type number of words block form the sub- data chunk of third, by the 4th first kind
Type sub-block and the 4th third type number of words block form the 4th sub- data chunk.
As shown in Fig. 5, base station sends four subdatas before sending four sub- data chunks to terminal
The corresponding demodulated reference signal of block group facilitates terminal quickly to carry out channel estimation to terminal, reduces the decoding delay of terminal, meets
5G low time delay demand.
As shown in Fig. 4, base station sends first sub- data chunk in time quantum 1 using transmission wave beam 1, uses
It sends wave beam 2 and sends second sub- data chunk on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The sub- data chunk of the third sends the 4th sub- data chunk using wave beam 4 is sent on time quantum 4.It is sending out base station
Send the first kind sub-block in each sub-block group transmission power be third type sub-block transmission power 4
Times.
Terminal receives four sub- data chunks, the first kind subdata that will include in this four sub- data chunks
(since each sub-block does not carry out cyclic redundancy check, the terminal can not judge whether some sub-block receives into block
Function) it is combined into a reception data block, cyclic redundancy check is then decoded and carries out to the reception data block, if can pass through
Cyclic redundancy check then illustrates data block reception success, if failed through cyclic redundancy check, terminal is by four sons
A minimum sub- data chunk (such as first sub- data chunk) of the Signal to Interference plus Noise Ratio that measurement obtains when data chunk receives is false
Mistake is received if existing, receives the second class by the way that the third type sub-block in four sub- data chunks to be combined to obtain
Type sub-block, then by receive Second Type sub-block with second, third is a, the in the 4th sub- data chunk
One type sub-block carries out xor operation and obtains the first kind sub-block after error correction in first sub- data chunk, then
First kind sub-block in the first kind sub-block obtained after error correction and other sub-block groups is combined into reception
Data block is decoded, if can illustrate the data block reception success, if failed by following by cyclic redundancy check
Ring redundancy check then illustrates the data block reception failure.
If received successfully, terminal feedback reception successful information is to base station；If reception failure, the failure of terminal feedback reception
To base station, the reception failure information describes to receive two worst subnumbers of Signal to Interference plus Noise Ratio in four sub- data chunks information
According to the serial number (such as first sub- data chunk, second sub- data chunk) of block group.
After base station receives the reception failure information, by third type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtains two re-transmission sub-block groups, base station by time division way by this
Two re-transmission sub-block groups are sent to terminal.Preferably, each first kind subnumber retransmitted in sub-block group is being sent
According to the transmission power for sending power and being equal to Second Type sub-block of block, the advantage of doing so is that increasing Second Type as far as possible
The data receiver accuracy of sub-block (including all information of data block), improves the probability for retransmitting successfully decoded.Preferably, base
The selection SINR that stands preferably sends wave beam 3 and sends first re-transmission sub-block, sends second re-transmission using wave beam 4 is sent
Data block.
Terminal receives described first, after second re-transmission sub-block group, by the two retransmit sub-block groups with
The sub- data chunk of described four received before carries out Combined Treatment, specifically includes first, second re-transmission subdata
First kind sub-block in block group and the first kind sub-block in corresponding first, second sub- data chunk into
First, second first kind sub-block updated after row merging treatment, by first, second re-transmission subdata
Second Type sub-block in block group merges place with the Second Type sub-block obtained based on four sub- data chunks
The Second Type sub-block updated after reason, be then based on first of update, second first kind sub-block and
Receive three for the first time, the Second Type sub-block of the 4th sub-block and update is according to the process in step 7)
Confirm whether the data packet receives success.
The experimental results showed that channel variation severe in high-frequency communication can be effectively antagonized using method of the present invention
Situation, by 25% or more wireless frequency spectrum improved efficiency.
It is to be appreciated that since Second Type sub-block contains all information of data block, decoding terminals process
In when failing to pass through cyclic redundancy check, terminal attempts to assume that a receptions letter is done in addition to can be used in above-described embodiment 1~6
It makes an uproar and error of transmission occurs than minimum first kind data block, it may also assume that 2 receive the minimum first kind of Signal to Interference plus Noise Ratio
Error of transmission occurs for data block, it may also assume that the 3 or four lower first kind data blocks of reception Signal to Interference plus Noise Ratio pass
Input mistake by mistake, specific number of attempt is related with the computing capability of terminal, it is assumed that rule can also be realized flexibly.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of data head is passed, repeating method, it is characterised in that: the described method comprises the following steps:
1) the first communication node generates the data block that length is X bit, and the data block includes cyclic redundancy check information；
2) block generates N number of first kind sub-block based on the data, and number is 1 to N, each first kind subdata
Block includes X/N bit, and the union of N number of first kind sub-block is equal to the data block, and wherein N is whole greater than 1
Number, X are the integer greater than 1, and are the multiple of N；3) it is carried out based on N number of first kind sub-block, by contraposition bit
The mode of exclusive or generates a Second Type sub-block, and the Second Type sub-block includes X/N bit；
4) N number of third type sub-block is obtained based on the Second Type sub-block, number is 1 to N, each third
Type sub-block includes X/N2The union of a bit, N number of third type sub-block is equal to the Second Type subnumber
According to block；
5) first communication node forms N number of transmission sub-block group, wherein i-th of sub-block group is by i-th described
One type sub-block and i-th of third type sub-block are constituted, i=1 ... N；
6) first communication node by N number of sub-block group described in N number of transmission multi-beam transmission to the second communication node, wherein
I-th of sub-block group passes through i-th of transmission multi-beam transmission, i=1 ... N；
7) second communication node receives N number of sub-block group, if according to the N number of first kind received
And it can be by cyclic redundancy check, described in the second communication node successful reception after the bit stream that data block is formed is decoded
Data block；If failing to pass through after being decoded according to the bit stream that the N number of first kind sub-block received is formed
Cyclic redundancy check, second communication node, which fails, receives the data block, then second communication node is by connecing
The third type sub-block received obtains the Second Type sub-block, then attempts to restore to deposit by exclusive or mode
In M first kind sub-block of mistake, then if can successfully be connect by cyclic redundancy check, second communication node
The data block is received, otherwise, second communication node receives the data block failure, wherein M is more than or equal to 1 and to be less than
Integer equal to N；
If 8) received successfully, the second communication node feedback reception successful information gives first communication node；If connect
Failure is received, the second communication node feedback reception failure information gives first communication node, and the reception failure information is extremely
Few serial number comprising describing to receive worst Y sub- data chunk of Signal to Interference plus Noise Ratio in N number of sub-block group, wherein Y is big
In the integer for being less than N equal to 1；
9) after first communication node receives the reception failure information, by the third class in the Y sub- data chunks
Type sub-block is replaced with the Second Type sub-block, obtains Y re-transmission sub-block group, and first communication node is logical
It crosses time division way and the Y re-transmission sub-block group is sent to second communication node；
10) after second communication node receives the Y re-transmission sub-block group, by the Y re-transmission sub-block group
Combined Treatment is carried out with the N number of sub-block group received before, finally determines whether the data block receives success.
2. according to the method described in claim 1, it is characterized by: N number of sub-block group is using time division way transmission, institute
It states the first communication node and sends the modulating-coding side used by signaling each sub-block group of second communication node
Formula.
3. according to the method described in claim 1, it is characterized by: before first communication node generates the data block,
First communication node receives the feedback information that second communication node is sent, and the feedback information notifies that described first is logical
Believe that node can be used to send the candidate of data to second communication node and sends beam set.
4. according to the method described in claim 3, it is characterized by: the candidate beam set that sends includes Z transmission wave beam,
Wherein, Z is the integer more than or equal to N.
5. according to the method described in claim 4, it is characterized by: first communication node and second communication node are logical
It crosses pre-defined rule or negotiation mode and selects N number of transmission wave beam from candidate send in beam set.
6. according to the method described in claim 1, it is characterized by: first communication node is sending N number of subdata
Block group is given before second communication node, and data block described in the second communication node described in informing physical downlink control channel is passed through
Transmission mode information, wherein send the transmission wave beam and send first subdata that physical down control information uses
The transmission wave beam that block group uses is identical.
7. according to the method described in claim 1, it is characterized by: first communication node is sending N number of subdata
Block group is given before second communication node, sends the corresponding demodulated reference signal of N number of sub-block group to described second
Communication node.
8. according to the method described in claim 1, it is characterized by: first communication node is sending each sub-block group
In first kind sub-block transmission power be third type sub-block transmission N times of power.
9. according to the method described in claim 1, it is characterized by: first communication node sends the Y re-transmission subnumbers
It is N-Y according to the transmission wave beam that block group uses, the N-Y transmission wave beam is connect by subtracting the Y in N number of transmission wave beam
It receives the remaining N-Y of the minimum corresponding transmission wave beam of sub-block of signal-to-noise ratio and sends wave beam composition.
10. according to the method described in claim 1, it is characterized by: second communication node is by the Y re-transmission subdata
Block group carries out Combined Treatment with the N number of sub-block group received before, specifically includes the Y re-transmission sub-block
First kind sub-block in group merges place with the first kind sub-block in the corresponding Y sub- data chunks
The Y first kind sub-block updated after reason, the Second Type sub-block that described Y is retransmitted in sub-block group
The Second Type subnumber updated after processing is merged with the Second Type sub-block obtained based on N number of sub-block group
According to block, it is then based on the Y first kind sub-block and the quality of reception best N-Y sub-block and update of update
Second Type sub-block confirms whether the data packet receives success according to the process in step 7), and wherein N-Y indicates N number of son
Data chunk-Y retransmit sub-block group.
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| EP3633897B1 (en) | 2017-05-22 | 2023-07-05 | Beijing Xiaomi Mobile Software Co., Ltd. | Data transmission method and apparatus |
| CN107689846B (en) * | 2017-09-20 | 2021-01-26 | 深圳市盛路物联通讯技术有限公司 | Method and system for detecting data errors |
| CN110971284B (en) * | 2019-11-15 | 2021-05-11 | 深圳职业技术学院 | High-frequency-band Internet of things data transmission method with terminal cooperation |
| CN110995397A (en) * | 2019-11-15 | 2020-04-10 | 深圳职业技术学院 | Reliable information processing method in Internet of things |
| CN110971384A (en) * | 2019-11-15 | 2020-04-07 | 深圳职业技术学院 | Terminal-assisted information transmission method |
| CN110933649B (en) * | 2019-11-15 | 2021-05-11 | 深圳职业技术学院 | Data sending method in narrow-band Internet of things |
| CN110972117B (en) * | 2019-11-15 | 2021-05-11 | 深圳职业技术学院 | Internet of things data transmission method based on wave beams |
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