CN106656435A - Data first transmission and retransmission method - Google Patents
Data first transmission and retransmission method Download PDFInfo
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- CN106656435A CN106656435A CN201610937005.6A CN201610937005A CN106656435A CN 106656435 A CN106656435 A CN 106656435A CN 201610937005 A CN201610937005 A CN 201610937005A CN 106656435 A CN106656435 A CN 106656435A
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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
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The invention provides a data first transmission and retransmission method, comprising: generating from an x-bit data block N first type sub-data blocks containing X/N bit; then, based on the N first type sub-data blocks, generating a second type sub-data block including X/N bit through the exclusive OR mode to the bit; based on the second type sub-data block, obtaining N third type sub-data blocks containing X/N2 bit; then, forming the N first type sub-data blocks and the N third type sub-data blocks as N transmission sub-data modules for transmission on N sending wave beams; utilizing the received third type sub-data blocks at a receiving terminal for an attempt to recover the first type sub-data blocks with errors; if the recovery is yet to be successful, then, replacing the third type sub-data blocks in the Y sub-data modules whose receiving signal-to-noise ratios are the poorest with the second type sub-data block for retransmission. The method of the invention can effectively increase the robustness for data transmission so as to adapt for the business requirement of a 5G communication system.
Description
Technical field
The present invention relates to the transmission side data in moving communicating field, more particularly to a kind of 5th generation wireless communication system
Method.
Background technology
Rise and abundant, the data user's number in wireless communication system of wireless data application business with intelligent terminal
It is significantly increased, data content is no longer confined to traditional word or image, and future customer is to high definition video, mobile TV etc.
The demand of multimedia service is more and more, causes wireless network traffic to present the situation of explosive growth.According to market institution
Prediction, coming 10 years, wireless data service will increase by 500 ~ 1000 times, and 1.6 ~ 2 times are increased every year on average, and this is to radio communication system
The network capacity of system is put forward higher requirement.
Towards the year two thousand twenty and future, mobile Internet and internet of things service will become the main driving of Mobile Communication Development
Power.5G will meet people living, work, the diversified business demand in leisure and the various regions such as traffic, even if it is intensive live
Quarter, office, stadium, outdoor rally, subway, through street, high ferro and wide area covering etc. has ultra high flux density, superelevation
Connection number density, the scene of ultrahigh-mobility feature, it is also possible to provide the user 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, realizes real " all things on earth interconnection ".
5G will solve the challenge that differentiation performance indications are brought under diversified application scenarios, the property that different application scene faces
Can challenge different, Consumer's Experience speed, 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, focus high power capacity, the big connection of low-power consumption and the highly reliable four 5G major technique scenes of low time delay.
Meeting the method for 5G demands has various, mainly includes：Spectrum efficiency is lifted, network density is improved, is increased system band
Wide, IN service shunting, reduction system broadcasts control overhead etc., wherein an effective means for lifting spectrum efficiency is exactly to the greatest extent may be used
The reliability of data transfer, frequency spectrum resource between 300MHz ~ 3GHz that particularly traditional business correspondence is mainly used can be improved
Extremely nervous situation is shown, the demand of future wireless system cannot be met, future will adopt higher carrier frequency
Rate is communicated, such as 28GHz, 45GHz etc., and this high frequency channel has Free propagation loss larger, is easily inhaled by oxygen
Receive, declined the shortcomings of affecting big by rain, had a strong impact on the covering performance of high frequency communication system.But, due to high-frequency communication correspondence
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, so as to ensure the spreadability of high-frequency communication
Energy.In high-frequency communication scene, generally data are sent using extremely narrow wave beam, 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 had a strong impact on.
The content of the invention
It is an object of the invention to the problems such as overcoming the difference of data transmission credibility present in the 5th generation wireless communication system,
A kind of data transmission method is provided.
It is that, up to above-mentioned purpose, the present invention is achieved through the following technical solutions：
A kind of first biography of Data Data, repeating method, comprise the following steps：1）First communication node generates number of the length for X bits
According to block, the data block includes cyclic redundancy check information；2）N number of first kind sub-block is generated based on the data block,
Numbering is that 1 to N, each described 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 more than 1, and X is the integer more than 1, and for the multiple of N；3）Based on described N number of
First kind sub-block, by way of aligning bit and carrying out XOR generate a Second Type sub-block, described second
Type sub-block includes X/N bit；4）N number of 3rd type sub-block is obtained based on the Second Type sub-block,
Numbering is 1 to N, and each described 3rd type sub-block includes X/N2Individual bit, N number of 3rd 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
Individual sub- data chunk is made up of first first kind sub-block and the 3rd type sub-block, second subnumber
It is made up of second first kind sub-block and the 3rd type sub-block according to block group, by that analogy, n-th
Data chunk first kind sub-block and the 3rd type sub-block described in n-th are constituted；6）First communication
Node sends N number of sub-block group described in multi-beam transmission to the second communication node by N number of, wherein first sub- data chunk is led to
First transmission multi-beam transmission is crossed, second sub- data chunk is by second transmission multi-beam transmission, by that analogy, n-th
Data chunk sends wave beam and sends by n-th；7）Second communication node receives N number of sub-block group, if root
The bit stream formed according to the described N number of first kind sub-block for receiving can simultaneously pass through CRC after being decoded,
Second communication node is properly received the data block；If according to the described N number of first kind sub-block shape for receiving
Into bit stream decoded after fail by CRC, second communication node fails the reception data
Block, then the 3rd type sub-block that second communication node passes through to receive obtains the Second Type subdata
Block, then attempts M first kind sub-block for recovering to there is mistake by XOR mode, if then can be superfluous by circulating
Remaining verification, second communication node is 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；8）If 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, including at least receiving in description N number of sub-block group, letter is dry to make an uproar the reception failure information
Than the sequence number of worst Y sub- data chunk, wherein Y is the integer more than or equal to 1 less than N；9）First communication node connects
After receiving the reception failure information, by the 3rd type sub-block Second Type in the Y sub- data chunk
Sub-block is replaced, and 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, retransmit sub-block group by described Y carries out Combined Treatment with the described N number of sub-block group for receiving before, finally
Determine whether the data block receives successfully.
Further, the data block is the coded bit stream obtained through physical layer coding.
Further, the first kind sub-block is extracted from the data block equal intervals, or from the number
Choose according to the original position order 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 second communication node each sub-block group sends the modulation coding mode for using.
Further, before first communication node generates the data block, first communication node receives described
The feedback information that second communication node sends, the feedback information notifies that first communication node can be used to described second
Communication node sends the candidate of data and sends beam set.
Further, the candidate sends beam set comprising Z transmission wave beam, wherein, Z is the integer more than or equal to N.
Further, first communication node passes through pre-defined rule or negotiation mode from institute with second communication node
State in candidate's transmission beam set and select N number of transmission wave beam.
Further, second communication node repeats the n times transmission reception failure information.
Further, first communication node send N number of sub-block group to second communication node it
Before, by the transmission means information of data block described in the second communication node described in informing physical downlink control channel, wherein, send
What the physical down control information was used sends wave beam and sends the transmission wave beam phase that first sub- data chunk is used
Together.
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 send each sub-block group in first kind sub-block send out
Send that power is the transmit power of the 3rd type sub-block N times.
Further, first kind sub-block of first communication node in each re-transmission sub-block group is sent
Transmit power be equal to Second Type sub-block transmit power.
Further, the transmission wave beam that the first communication node transmission Y re-transmission sub-block group is used is N-Y
Individual, described N-Y sends wave beam and deducts the minimum sub-block pair of the Y received signal to noise ratio by N number of the transmission in wave beam
The remaining N-Y of transmission wave beam for answering sends wave beam and constitutes.
Further, second communication node is described N number of with what is received before by described Y re-transmission sub-block group
Sub-block group carries out Combined Treatment, specifically include by described Y retransmit sub-block group in first kind sub-block with
First kind sub-block in the corresponding Y sub- data chunk merges the Y first kind for obtaining updating after processing
Type sub-block, the Second Type sub-block that described Y is retransmitted in sub-block group is obtained with X sub- data chunk is based on
Second Type sub-block merge process after obtain the Second Type sub-block that updates, be then based on the Y for updating
N-Y best sub-block of first kind sub-block and the quality of reception and the Second Type sub-block of renewal are according to step
Rapid 7）In flow process confirm whether the packet receives successfully.
The invention has the beneficial effects as follows：Using the method for the invention and device（System）, compared with prior art, can have
Effect increases the robustness of data transfer to adapt to the business demand of the 5th generation wireless communication system.
Description of the drawings
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 sub-block group correspondence pilot tone sending method schematic diagram.
Specific embodiment
Accompanying drawing is combined below by specific embodiment to be described in further detail the present invention.
As shown in Figure 1, method of the present invention flow process is as follows：
Step 102, the first communication node generates data block of the length for X bits, and the data block is believed comprising CRC
Breath；
Step 104, based on the data block N number of first kind sub-block is generated, and numbering is 1 to N, each described first kind
Sub-block is included（X/N）Individual bit, the union of N number of first kind sub-block is equal to the data block, and wherein N is big
In 1 integer, X is the integer more than 1, and for the multiple of N；
Step 106, based on N number of first kind sub-block, generates by way of aligning bit and carrying out XOR one the
Two type sub-blocks, the Second Type sub-block is included（X/N）Individual bit；
Step 108, based on the Second Type sub-block N number of 3rd type sub-block is obtained, and numbering is 1 to N, each institute
State the 3rd type sub-block to include（（X/N）/N）Individual bit, the union of N number of 3rd type sub-block is equal to described the
Two type sub-blocks；
Step 110, first communication node forms N number of transmission sub-block group, wherein, first sub- data chunk is by first
The individual first kind sub-block and the 3rd type sub-block are constituted, and second sub- data chunk is by described in second
First kind sub-block and the 3rd type sub-block are constituted, and by that analogy, n-th sub-block group is by n-th institute
State first kind sub-block and the 3rd type sub-block is constituted；
Step 112, first communication node is by N number of sub-block group described in N number of transmission multi-beam transmission to the second communication section
Point, wherein first sub- data chunk is by first transmission multi-beam transmission, second sub- data chunk is by second transmission
Multi-beam transmission, by that analogy, n-th sub-block group sends wave beam and sends by n-th；
Step 114, second communication node receives N number of sub-block group, if according to described N number of first for receiving
The bit stream that type sub-block is formed simultaneously can successfully be connect after being decoded by CRC, second communication node
Receive the data block；If after being decoded according to the bit stream of the described N number of first kind sub-block formation for receiving not
Can be by CRC, second communication node fails and receives the data block, then second communication node
The Second Type sub-block is obtained by the 3rd type sub-block for receiving, is then attempted by XOR mode
Recover the M first kind sub-block that there is mistake, if then can be by CRC, second communication node
Be properly received the data block, otherwise, second communication node receives the data block failure, wherein, M be more than or equal to 1,
And the integer less than or equal to N；
Step 116, if received successfully, the second communication node feedback reception successful information gives first communication node；
If reception failure, the second communication node feedback reception failure information gives first communication node, the reception failure
Information receives the sequence number of worst Y sub- data chunk of Signal to Interference plus Noise Ratio including at least describing in N number of sub-block group, wherein
Y is the integer more than or equal to 1 less than N；
Step 118, first communication node is received after the reception failure information, by the Y sub- data chunk
3rd type sub-block is replaced with the Second Type sub-block, obtains Y re-transmission sub-block group, first communication
Described Y re-transmission sub-block group is sent to second communication node by node by time division way；
Step 120, second communication node receives described Y and retransmits after sub-block group, and by described Y subdata is retransmitted
Block group carries out Combined Treatment with the described N number of sub-block group for receiving before, finally determines whether the data block receives into
Work(.
Embodiment 1
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted receiving
The terminal of the data block just must can be confirmed whether successfully to obtain the data block by the verification based on redundancy check information,
Preferably, the data block is the coded bit stream obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, finally determine whether the data block receives successfully.
Embodiment 2
Base station receives the feedback information of terminal transmission, and the feedback information notifies that the base station can be used to be sent to the terminal
The candidate of data sends beam set, and the candidate sends set includes that 10 send wave beams and these transmissions wave beam is corresponding and connect
Receive quality information.
Base station selects four to send wave beams for giving terminal transmission according to terminal treaty rule from candidate's transmission set
Data block, for example, select four transmission wave beams that the quality of reception is best, or chooses according to predetermined pattern.
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted
Receive the terminal of the data block just must can 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 obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.Preferably, terminal repeats in time four
It is secondary to send the reception failure information, improve the receiving power probability of described information.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, finally determine whether the data block receives successfully.
Embodiment 3
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted receiving
The terminal of the data block just must can be confirmed whether successfully to obtain the data block by the verification based on redundancy check information,
Preferably, the data block is the coded bit stream obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
Base station before four sub- data chunks are sent to terminal, by informing physical downlink control channel terminal institute
State the transmission means information of data block（For example divide four sub- data chunk transmission, building form of sub-block group etc.）, wherein,
Send that the physical down control information uses sends wave beam and sends the send wave that first sub- data chunk is used
Shu Xiangtong, it is to avoid terminal is due to decoding the Data reception errors that PDCCH time delays are caused.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, finally determine whether the data block receives successfully.
Embodiment 4
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted receiving
The terminal of the data block just must can be confirmed whether successfully to obtain the data block by the verification based on redundancy check information,
Preferably, the data block is the coded bit stream obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
As shown in Figure 5, base station sent four subdatas before four sub- data chunks are sent 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 demands.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, finally determine whether the data block receives successfully.
Embodiment 5
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted receiving
The terminal of the data block just must can be confirmed whether successfully to obtain the data block by the verification based on redundancy check information,
Preferably, the data block is the coded bit stream obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.It is such as attached
Shown in Fig. 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
As shown in Figure 5, base station sent four subdatas before four sub- data chunks are sent 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 demands.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, specifically include first, second re-transmission subdata
First kind sub-block in block group enters with the first kind sub-block in corresponding first, second sub- data chunk
First, second first kind sub-block for updating is obtained 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
Obtain after reason update Second Type sub-block, be then based on update first, second first kind sub-block and
Receive for the first time three, the Second Type sub-block of the 4th sub-block and renewal is according to step 7）In flow process
Confirm whether the packet receives successfully.
Embodiment 6
Base station generates the data block comprising 160 bits, and redundancy check information of the data block comprising 16 bits is attempted receiving
The terminal of the data block just must can be confirmed whether successfully to obtain the data block by the verification based on redundancy check information,
Preferably, the data block is the coded bit stream obtained through physical layer coding.
Base station generates four first kind sub-blocks and a length respectively comprising 40 bits based on the data block
For the Second Type sub-block of 40 bits.The first kind sub-block is extracted from the data block equal intervals
, or choose from the original position order of the data block, as shown in Figure 2, described each first kind sub-block bag
The partial content of the data block is included, described four the first sub-block unions are equal to the data block, occur simultaneously for empty set.As schemed
Shown in 3, four first kind subtype blocks obtain Second Type sub-block by way of contraposition bit XOR.
Base station obtains four the 3rd type sub-blocks based on the Second Type sub-block, and numbering is 1 to 4, each
The 3rd type sub-block includes 10 bits, and the union of four the 3rd type sub-blocks is equal to the Equations of The Second Kind
Type sub-block, occurs simultaneously for empty set.
First first kind sub-block and first the 3rd type sub-block are formed first subdata by base station
Block group, by second first kind sub-block and second the 3rd type number of words block second sub- data chunk is formed, by the
Three first kind sub-blocks and the 3rd the 3rd type number of words block form the 3rd sub- data chunk, by the 4th first kind
Type sub-block and the 4th the 3rd type number of words block form the 4th sub- data chunk.
As shown in Figure 5, base station sent four subdatas before four sub- data chunks are sent 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 demands.
As shown in Figure 4, base station sends first sub- data chunk using wave beam 1 is sent in time quantum 1, uses
Send wave beam 2 and second sub- data chunk is sent on time quantum 2, sent on time quantum 3 using wave beam 3 is sent
The 3rd sub- data chunk, using wave beam 4 is sent the 4th sub- data chunk is sent on time quantum 4.Sending out base station
The transmit power for giving the first kind sub-block in each sub-block group is the 4 of the transmit power of the 3rd type sub-block
Times.
Terminal receives four sub- data chunks, the first kind subdata that will be included in this four sub- data chunks
Block（Because each sub-block is not circulated redundancy check, the terminal cannot judge whether certain sub-block receives into
Work(）A receiving data block is combined into, CRC is then decoded and carried out to the receiving data block, if can pass through
CRC, then illustrate the data block reception success, failing to by CRC, then terminal is by four sons
A minimum sub- data chunk of the Signal to Interference plus Noise Ratio that obtains of measurement when data chunk is received（Such as first sub- data chunk）It is false
If exist receiving mistake, obtain receiving Equations of The Second Kind by the way that the 3rd type sub-block in four sub- data chunks is combined
Type sub-block, then by receive Second Type sub-block and second, the 3rd, in the 4th sub- data chunk the
One type sub-block carries out the first kind sub-block that xor operation obtains 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 the data block reception success can be illustrated by CRC, failing to by following
Ring redundancy check, then illustrate the data block reception failure.
If received successfully, terminal feedback receives successful information to base station；If reception failure, terminal feedback reception failure
To base station, the reception failure information is described and receive in four sub- data chunks two worst subnumbers of Signal to Interference plus Noise Ratio information
According to the sequence number of block group（Such as first sub- data chunk, second sub- data chunk）.
Base station is received after the reception failure information, by the 3rd type in first, second sub- data chunk
Data block is replaced with the Second Type sub-block, obtain two re-transmission sub-block groups, base station by time division way by this
Two retransmit sub-block group and are sent to terminal.Preferably, the first kind subnumber in each re-transmission sub-block group is sent
The transmit power of Second Type sub-block is equal to according to the transmit power of block, be advantage of this is that and increase as far as possible Second Type
Sub-block（Comprising all information of data block）Data receiver accuracy, improve retransmit successfully decoded probability.Preferably, base
The selection SINR that stands preferably sends wave beam 3 and sends first re-transmission sub-block, and using the transmission of wave beam 4 second is sent son is retransmitted
Data block.
Terminal receive described first, second retransmit sub-block group after, by the two re-transmission sub-block groups with
The four sub- data chunks for receiving before carry out Combined Treatment, specifically include first, second re-transmission subdata
First kind sub-block in block group enters with the first kind sub-block in corresponding first, second sub- data chunk
First, second first kind sub-block for updating is obtained 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
Obtain after reason update Second Type sub-block, be then based on update first, second first kind sub-block and
Receive for the first time three, the Second Type sub-block of the 4th sub-block and renewal is according to step 7）In flow process
Confirm whether the packet receives successfully.
Test result indicate that, using method of the present invention, channel variation severe in high-frequency communication can be effective against
Situation, by wireless frequency spectrum improved efficiency more than 25%.
It is to be appreciated that because Second Type sub-block contains the full detail of data block, therefore decoding terminals process
In fail by during CRC, terminal is except can to receive letter dry using attempting assuming one in above-described embodiment 1 ~ 6
Make 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
There is error of transmission in data block, it may also assume that 3 or four receive the relatively low first kind data block of Signal to Interference plus Noise Ratio and pass
Input mistake by mistake, concrete number of attempt is relevant with the computing capability of terminal, it is assumed that rule can also be realized flexibly.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of without departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (11)
1. a kind of data it is first pass, repeating method, it is characterised in that：The method comprising the steps of：
1）First communication node generates data block of the length for X bits, and the data block includes cyclic redundancy check information；
2）N number of first kind sub-block is generated based on the data block, numbering is 1 to N, each described 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 more than 1
Number, X is the integer more than 1, and for the multiple of N；3）Carry out based on N number of first kind sub-block, by aligning bit
The mode of XOR generates a Second Type sub-block, and the Second Type sub-block includes X/N bit；
4）N number of 3rd type sub-block is obtained based on the Second Type sub-block, numbering is 1 to N, and each the described 3rd
Type sub-block includes X/N2Individual bit, the union of N number of 3rd 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, theiIndividual sub- data chunk is byiIt is individual described
First kind sub-block and the 3rd type sub-block are constituted,i=1……N；
6）First communication node sends N number of sub-block group described in multi-beam transmission to the second communication node by N number of, wherein
TheiIndividual sub- data chunk is by theiIndividual transmission multi-beam transmission,i=1……N；
7）Second communication node receives N number of sub-block group, if according to described N number of first kind for receiving
The bit stream that data block is formed simultaneously can be by CRC after being decoded, and second communication node is properly received described
Data block；If the bit stream formed according to the described N number of first kind sub-block for receiving fails to pass through after being decoded
CRC, second communication node fails and receives the data block, then second communication node is by connecing
The 3rd type sub-block for receiving obtains the Second Type sub-block, then attempts recovery by XOR mode and deposits
In M first kind sub-block of mistake, if then can successfully be connect by CRC, 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 is less than
Integer equal to N；
8）If 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
The sequence number of worst Y sub- data chunk of Signal to Interference plus Noise Ratio is received in few N number of sub-block group comprising description, wherein Y is big
In the integer equal to 1 less than N；
9）First communication node is received after the reception failure information, by the 3rd class in the Y sub- data chunk
Type sub-block is replaced with the Second Type sub-block, obtains Y re-transmission sub-block group, and first communication node leads to
Cross time division way and described Y re-transmission sub-block group is sent into second communication node；
10）Second communication node receives described Y and retransmits after sub-block group, and by described Y sub-block group is retransmitted
Combined Treatment is carried out with the described N number of sub-block group for receiving before, finally determines whether the data block receives successfully.
2. method according to claim 1, it is characterised in that：N number of sub-block group is sent using time division way, institute
State the first communication node and send the modulating-coding side for using by signaling second communication node each sub-block group
Formula.
3. method according to claim 1, it is characterised in that：Before first communication node generates the data block,
First communication node receives the feedback information that second communication node sends, and the feedback information notifies described first to lead to
The candidate that letter node can be used to send data to second communication node sends beam set.
4. method according to claim 3, it is characterised in that：The candidate sends beam set comprising Z transmission wave beam,
Wherein, Z is the integer more than or equal to N.
5. method according to claim 4, it is characterised in that：First communication node is logical with second communication node
Cross pre-defined rule or negotiation mode and select N number of transmission wave beam from candidate transmission beam set.
6. method according to claim 1, it is characterised in that：First communication node is sending N number of subdata
Block group is given before second communication node, by data block described in the second communication node described in informing physical downlink control channel
Transmission means information, wherein, send transmission wave beam that the physical down control information uses and send first son
The transmission wave beam that data chunk is used is identical.
7. method according to claim 1, it is characterised in that：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. method according to claim 1, it is characterised in that：First communication node is sending each sub-block group
In the transmit power of first kind sub-block be N times of transmit power of the 3rd type sub-block.
9. method according to claim 1, it is characterised in that：.
10. the transmission wave beam that the re-transmission sub-block group of the first communication node transmission Y described in is used is N-Y, the N-Y
Individual transmission wave beam deducts the minimum corresponding send wave of sub-block of the Y received signal to noise ratio by N number of the transmission in wave beam
The remaining N-Y of beam sends wave beam and constitutes.
11. methods according to claim 1, it is characterised in that：Second communication node retransmits subdata by described Y
Block group carries out Combined Treatment with the described N number of sub-block group for receiving before, specifically includes and retransmits sub-block by described Y
First kind sub-block in group merges place with the first kind sub-block in the corresponding Y sub- data chunk
The Y first kind sub-block for updating, the Second Type sub-block that described Y is retransmitted in sub-block group are obtained after reason
The Second Type subnumber for obtaining updating after processing is merged with the Second Type sub-block obtained based on X sub- data chunk
According to block, N-Y best sub-block of Y first kind sub-block updating and the quality of reception and renewal are then based on
Second Type sub-block is according to step 7）In flow process confirm whether the packet receives successfully.
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