CN105530072B - A kind of uplink signal coding/decoding method and base station based on code block segmentation - Google Patents
A kind of uplink signal coding/decoding method and base station based on code block segmentation Download PDFInfo
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Abstract
The present invention discloses a kind of uplink signal coding/decoding method based on code block segmentation and base station, the method includes：Signal processing is carried out to the uplink signal received, obtains symbol sebolic addressing；Symbol level processing is carried out to the symbol sebolic addressing, obtains the symbol sebolic addressing handled by symbol level；Processing is split to the symbol sebolic addressing handled by symbol level, obtains code block group；Demodulation process, the code block group after being demodulated are carried out to the code block group；Scramble process, the code block group after being descrambled are carried out to the code block group after the demodulation；Bit-level processing is carried out to the code block group after the descrambling, obtains the user data of terminal transmission.Uplink signal coding/decoding method and base station proposed by the present invention based on code block segmentation are based on code block rather than entire transport block length by the processing that will be descrambled and demodulate, to reduce the treating capacity of LTE system.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of uplink signal coding/decoding method and base based on code block segmentation
It stands.
Background technology
In current LTE (Long Term Evolution, long term evolution) system, uplink increasing is introduced in uplink
Strong type multi-antenna technology is based on 4 transmission antenna precodings, and maximum can support 4 sheaf space multiplexing transmission modes, in this case right
For maximum supports 64QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation) modulation system, phase
The transmission block bit number answered increases very much, and base station receives treating capacity and greatly increases.
The processing of the bit-level of LTE system generally uses Turbo to encode, and the maximum input bit length of Turbo code is limited
It is set to 6144 bits.Due to the case where being more than 6144 bit there are transmission block bit number, code block is used in LTE system
Cutting techniques, i.e., the code block number divided by calculating " transmission block bit number/6144 ", based on code block number to transmission block
Code block segmentation is carried out, each code bit number in the block after segmentation is less than or equal to 6144 bits, is handled for Turbo coding and decodings.
Fig. 1 is the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) of LTE system
Uplink signal receive flow diagram.Wherein, it by processing such as channel estimation, detections, carries out being based on code block grade to receiving symbol
The demodulation scramble process of the entire transmission block of connection state is carried out later at the relevant deinterleaving of code block segmentation processing and demultiplexing
Reason, the data of each code block after segmentation carry out solution rate-matched, HARQ (Hybrid Automatic Repeat Request,
Hybrid automatic repeat-request) soft merging, channel decoding, code block CRC (Cyclic Redundancy Check, cyclic redundancy school
Test) processing such as error detection.All code blocks are finally subjected to code block cascade processing, transmission block bit is exported by transmission block CRC error detections.
In LTE system, the processing of the code block of existing uplink signal receiving terminal is only carried out in bit-level, and is descrambled, demodulated and be
It is handled based on entire transport block length, due to corresponding TBS (Transport Block Size, transport block size)
Bit value increases, and for big transmission block, treating capacity will greatly increase.For example, the processing for scrambling/descrambling
For length, in the case of 64QAM modulation systems, due to the increase of TBS bit numbers, the treating capacity ratio QPSK of descrambling
Treating capacity when (Quadrature Phase Shift Keying, quadrature phase shift keying) and 16QAM increases very much.For solution
For the processing of tune, symbol-modulated bit wide when due to 64QAM is 6 bits, compared with symbol-modulated when 16QAM, demodulation
Treating capacity be 1.5 times of original treating capacity.
Since the processing of existing descrambling and demodulation is handled based on entire transport block length, with LTE system
The treating capacity of the complication of configuration, descrambling and demodulation is stepped up, and is unfavorable for the real-time processing of LTE system.
Invention content
Processing the technical problem to be solved by the present invention is to existing descrambling and demodulation is to be based on entire transport block length
It is handled, with the complication that LTE system configures, the treating capacity of descrambling and demodulation is stepped up, and is unfavorable for LTE system
Processing in real time.
For this purpose, in a first aspect, the present invention proposes a kind of uplink signal coding/decoding method based on code block segmentation, the side
Method includes：
Signal processing is carried out to the uplink signal received, obtains symbol sebolic addressing；
Symbol level processing is carried out to the symbol sebolic addressing, obtains the symbol sebolic addressing handled by symbol level；
Processing is split to the symbol sebolic addressing handled by symbol level, obtains code block group；
Demodulation process, the code block group after being demodulated are carried out to the code block group；
Scramble process, the code block group after being descrambled are carried out to the code block group after the demodulation；
Bit-level processing is carried out to the code block group after the descrambling, obtains the user data of terminal transmission.
Optionally, the described pair of uplink signal received carries out signal processing, obtains symbol sebolic addressing, including：
Channel estimation, detection are carried out to the uplink signal received, obtain symbol sebolic addressing to be demodulated, it is described to be demodulated
Symbol sebolic addressing includes data symbol and controlling symbols, and the controlling symbols are by channel quality indicator (CQI) symbol, order instruction RI symbols
It is formed with response ACK symbols.
Optionally, described that symbol level processing is carried out to the symbol sebolic addressing, including：
Processing is deinterleaved to the symbol sebolic addressing to be demodulated, the symbol sebolic addressing after being deinterleaved；
Demultiplexing process, the symbol sebolic addressing after being demultiplexed are carried out to the symbol sebolic addressing after the deinterleaving.
Optionally, described that processing is deinterleaved to the symbol sebolic addressing to be demodulated, the symbol sequence after being deinterleaved
Row, including：
According to preset rules, processing is deinterleaved to symbol sebolic addressing to be demodulated, the symbol sebolic addressing after being deinterleaved,
Symbol sebolic addressing after the deinterleaving includes data symbol and controlling symbols, the controlling symbols by CQI symbols, RI symbols and
ACK symbols form.
Optionally, the symbol sebolic addressing to after the deinterleaving carries out demultiplexing process, the symbol after being demultiplexed
Sequence, including：
The CQI symbols, RI symbols are taken out from the symbol sebolic addressing after deinterleaving and are cached to preset CQI respectively and is delayed
Deposit and RI caching in, the position not zero padding to being vacated in the symbol sebolic addressing after deinterleaving obtains the first symbol sebolic addressing；
By the ACK symbols from taking out and being cached in preset ACK cachings in first symbol sebolic addressing, to first
The position zero padding vacated in symbol sebolic addressing, obtains the second symbol sebolic addressing, and second symbol sebolic addressing is the symbol sequence after demultiplexing
Row.
Optionally, described that processing is split to the symbol sebolic addressing handled by symbol level, code block group is obtained, is wrapped
It includes：
According to the value of preset transport block size TBS, the maximum input ratio of modulation mapped bits number Q and Turbo coding
Special number calculates code block segmentation number C；
Symbol sebolic addressing after the demultiplexing is divided into C code block, the C code block is ranked sequentially composition according to segmentation
Code block group.
Optionally, before the code block group to after the demodulation carries out the step of scramble process, the method further includes：
According to the corresponding bit sequence length of the symbol sebolic addressing to be demodulated, the scrambled bits sequence of corresponding length is generated
Row；
Processing is deinterleaved to the scrambled bits sequence, obtain and caches the scrambler sequence after deinterleaving；
Correspondingly, the code block group progress scramble process to after the demodulation, the code block group after being descrambled, including：
According to the position in the symbol sebolic addressing of CQI symbols and RI symbols after deinterleaving, by the scrambler after the deinterleaving
The bit of corresponding position removes in sequence, obtains the first scrambler sequence；
It, will be corresponding in first scrambler sequence according to the position in symbol sebolic addressing of the ACK symbols after the deinterleaving
The bit of position removes and zero padding, obtains the second scrambler sequence；
According to the several C of code block segmentation, it is divided into C corresponding with the code block in code block group to disturb second scrambler sequence
Subsequence；
According to the C scrambler subsequence, the bit sequence of C code block carries out scramble process in code-aiming block group.
Optionally, the code block group to after the descrambling carries out bit-level processing, obtains the user data of terminal transmission,
Including：
Solution rate-matched, the soft conjunctions of hybrid automatic repeat-request HARQ are carried out to each code block in the code block group after the descrambling
And channel decoding and code block cyclic redundancy check (CRC) error detection are handled；
Each code block in code block group is subjected to bit-level code block cascade processing, transmission block is obtained, to transmission block CRC error detections
The user data of terminal transmission is obtained afterwards.
Second aspect, the present invention also propose that a kind of base station, the base station include：
Signal processing unit obtains symbol sebolic addressing for carrying out signal processing to the uplink signal received；
Symbol level processing unit obtains handling by symbol level for carrying out symbol level processing to the symbol sebolic addressing
Symbol sebolic addressing；
Dividing processing unit obtains code block for being split processing to the symbol sebolic addressing handled by symbol level
Group；
Demodulation process unit, for carrying out demodulation process, the code block group after being demodulated to the code block group；
Scramble process unit, for carrying out scramble process, the code block group after being descrambled to the code block group after the demodulation；
Bit-level processing unit obtains terminal transmission for carrying out bit-level processing to the code block group after the descrambling
User data is completed uplink signal and is received.
Optionally, the signal processing unit, is specifically used for：
Channel estimation, detection are carried out to the uplink signal received, obtain symbol sebolic addressing to be demodulated, it is described to be demodulated
Symbol sebolic addressing includes data symbol and controlling symbols, and the controlling symbols are by channel quality indicator (CQI) symbol, order instruction RI symbols
It is formed with response ACK symbols.
Compared with the prior art, a kind of uplink signal coding/decoding method and base station based on code block segmentation proposed by the present invention are logical
It crosses and the processing of descrambling and demodulation is based on code block rather than entire transport block length, to reduce the treating capacity of LTE system.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows the uplink signal decoding process block diagram of the PUSCH channels of existing LTE system；
Fig. 2 shows the uplink signal coding/decoding method flow charts based on code block segmentation；
Fig. 3 shows the uplink signal coding/decoding method flow chart based on code block segmentation；
Fig. 4 shows the base station structure diagram using the uplink signal coding/decoding method based on code block segmentation.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Uplink signal coding/decoding method flow chart based on code block segmentation as shown in Figures 2 and 3, the present embodiment disclose one kind
Uplink signal coding/decoding method based on code block segmentation, the method may include following steps：
S1, signal processing is carried out to the uplink signal received, obtains symbol sebolic addressing；
In concrete application, to the terminal signaling by PUSCH transmissions received, channel estimation, detection etc. are carried out
Signal processing obtains symbol sebolic addressing to be demodulated, and symbol sebolic addressing to be demodulated includes data symbol and controlling symbols, controls signal
By CQI (Channel quality indicator, channel quality instruction), RI (Rank Indication, order instruction) and ACK
(Acknowledge, response) forms.
S2, symbol level processing is carried out to the symbol sebolic addressing in step S1, obtains the symbol sebolic addressing handled by symbol level；
For example, symbol level processing may include：
Symbol level deinterleaving is handled：According to preset rules, processing is deinterleaved to symbol sebolic addressing to be demodulated, is solved
Symbol sebolic addressing after intertexture, the symbol sebolic addressing after deinterleaving include data symbol and controlling symbols, wherein controlling symbols are by CQI
Symbol, RI symbols and ACK symbols form, and the position in symbol sebolic addressing of the controlling symbols after deinterleaving is previously known.It lifts
For example, preset rules can be that preset LTE system configures, for example, the length etc. deinterleaved
Meanwhile in order to ensure descrambling when scrambler sequence correct sequence, need first to generate scrambled bits sequence before descrambling, disturb
The length of code bit sequence is equal to the corresponding bit sequence length of symbol sebolic addressing to be demodulated, and solution friendship is carried out to scrambled bits sequence
Processing is knitted, obtains and caches the scrambler sequence after deinterleaving, be used for subsequent scramble process.
Symbol level demultiplexing process：Demultiplexing process, the symbol after being demultiplexed are carried out to the symbol sebolic addressing after deinterleaving
Number sequence, specifically includes following steps：
CQI symbols, RI symbols are taken out from the symbol sebolic addressing after deinterleaving and be cached to respectively preset CQI caching with
And in RI cachings, the position not zero padding to being vacated in the symbol sebolic addressing after deinterleaving obtains the first symbol sebolic addressing；
By ACK symbols from taking out and being cached in preset ACK cachings in the first symbol sebolic addressing, in the first symbol sebolic addressing
The position zero padding vacated obtains the second symbol sebolic addressing, and the second symbol sebolic addressing is the symbol sebolic addressing after demultiplexing, does not include any control
Symbol processed.
S3, processing is split to the symbol sebolic addressing handled by symbol level, obtains code block group；
It is also to be carried out in symbol level to be split processing to symbol sebolic addressing, specifically：
First, the number C of code block segmentation is calculated：
The value (being K bit in the present embodiment) of transport block size TBS, modulation mapping in being configured according to preset LTE system
The maximum input bit number 6144 of bit number Q and Turbo coding, calculates code block segmentation number C；
Wherein, Q=2,4,6, corresponding modulation system are QPSK, 16QAM, 64QAM.Corresponding modulation symbol number is M=
K/Q, then
If M≤Z, the number C=1 of code block segmentation.
If M>Z, the number of code block segmentationWherein Z=6144/Q.
Second symbol sebolic addressing is divided into C code block, this C code block is ranked sequentially according to segmentation constitutes code block group, and first
The length of a code block to the C-1 code block isThe length of the C code block is that the second symbol sebolic addressing is divided C-1
Remaining length after a code block.
S4, demodulation process, the code block group after being demodulated are carried out to the code block group；
Specifically, which is the demodulation process carried out in code block grade：
Each code data symbol in the block carries out demodulation process in code-aiming block group, and different modulating mode corresponds to different demodulation
Processing, modulation system include QPSK, 16QAM, 64QAM, modulation system configured according to LTE system may be selected QPSK, 16QAM or
64QAM。
Correspondingly, the demodulation process to CQI symbols is identical as the demodulation process of above-mentioned code block, and RI symbols and ACK symbols
Only carry out QPSK demodulation.
S5, scramble process, the code block group after being descrambled are carried out to the code block group after the demodulation；Specifically：
First, the position in the symbol sebolic addressing according to CQI symbols and RI symbols after deinterleaving, after the deinterleaving
The bit of corresponding position removes in scrambler sequence, obtains the first scrambler sequence；
It secondly, will be in first scrambler sequence according to the position in symbol sebolic addressing of the ACK symbols after the deinterleaving
The bit of corresponding position removes and zero padding, obtains the second scrambler sequence；
Again, according to the several C of code block segmentation, second scrambler sequence is divided into corresponding with the code block in code block group
C scrambler subsequence；
Finally, according to the C scrambler subsequence, the bit sequence of C code block carries out scramble process in code-aiming block group, obtains
Code block group after to descrambling.
S6, bit-level processing is carried out to the code block group after the descrambling, obtains the user data of terminal transmission.
For example, bit-level processing may include：Solution rate is carried out to each code block in the code block group after the descrambling
Match, hybrid automatic repeat-request HARQ soft mergings, channel decoding and code block cyclic redundancy check (CRC) error detection processing；
After the processing of above-mentioned bit-level, each code block in code block group is subjected to bit-level code block cascade processing, is passed
It defeated piece, to obtaining the user data of terminal transmission after transmission block CRC error detections, completes uplink signal and receives.
The uplink signal coding/decoding method based on code block segmentation of the present embodiment is based on code by the processing that will be descrambled and demodulate
Block rather than entire transport block length, to reduce the treating capacity of LTE system.The method of the present embodiment is suitable under hardware environment
Parallel processing designs.
The base station structure diagram of the uplink signal coding/decoding method of application as shown in Figure 4 based on code block segmentation, the present embodiment are public
A kind of base station is opened, the base station may include with lower unit：
Signal processing unit obtains symbol sebolic addressing for carrying out signal processing to the uplink signal received；
Symbol level processing unit obtains handling by symbol level for carrying out symbol level processing to the symbol sebolic addressing
Symbol sebolic addressing；
Dividing processing unit obtains code block for being split processing to the symbol sebolic addressing handled by symbol level
Group；
Demodulation process unit, for carrying out demodulation process, the code block group after being demodulated to the code block group；
Scramble process unit, for carrying out scramble process, the code block group after being descrambled to the code block group after the demodulation；
Bit-level processing unit obtains terminal transmission for carrying out bit-level processing to the code block group after the descrambling
User data is completed uplink signal and is received.
The base station of above-described embodiment can perform the flow in embodiment of the method above-mentioned, and the present embodiment does not carry out detailed herein
It states.
The base station of uplink signal coding/decoding method of the application of the present embodiment based on code block segmentation will be by that will descramble and demodulate
Processing is based on code block rather than entire transport block length, to reduce the treating capacity of LTE systems.It is each in the base station of the present embodiment
Unit is suitable for the Parallel processing designs under hardware environment.
It will be understood by those skilled in the art that can carry out adaptively changing and it to the unit in embodiment
Be provided in the different one or more equipment of the embodiment.Unit in embodiment can be combined into a module or
Unit or component, and it can be divided into multiple submodule or subelement or sub-component in addition.In addition to such feature and/
Or at least some of process or unit are mutually exclusive places, and any combinations may be used to institute disclosed in this specification
There are feature and all processes or unit of so disclosed any method or equipment to be combined.Unless in addition clearly old
It states, each feature disclosed in this specification can be replaced by providing the alternative features of identical, equivalent or similar purpose.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (6)
1. a kind of uplink signal coding/decoding method based on code block segmentation, which is characterized in that the method includes：
Signal processing is carried out to the uplink signal received, obtains symbol sebolic addressing；
Symbol level processing is carried out to the symbol sebolic addressing, obtains the symbol sebolic addressing handled by symbol level；
Processing is split to the symbol sebolic addressing handled by symbol level, obtains code block group；
Demodulation process, the code block group after being demodulated are carried out to the code block group；
Scramble process, the code block group after being descrambled are carried out to the code block group after the demodulation；
Bit-level processing is carried out to the code block group after the descrambling, obtains the user data of terminal transmission；
Wherein, the described pair of uplink signal received carries out signal processing, obtains symbol sebolic addressing, including：
Channel estimation, detection are carried out to the uplink signal received, obtain symbol sebolic addressing to be demodulated, the symbol to be demodulated
Sequence includes data symbol and controlling symbols, and the controlling symbols are by channel quality indicator (CQI) symbol, order instruction RI symbols and answer
Answer ACK symbols composition；
Wherein, described that symbol level processing is carried out to the symbol sebolic addressing, including：
Processing is deinterleaved to the symbol sebolic addressing to be demodulated, the symbol sebolic addressing after being deinterleaved；
Demultiplexing process, the symbol sebolic addressing after being demultiplexed are carried out to the symbol sebolic addressing after the deinterleaving；
Wherein, the code block group to after the descrambling carries out bit-level processing, obtains the user data of terminal transmission, including：
To each code block in the code block group after the descrambling carry out solution rate-matched, hybrid automatic repeat-request HARQ soft mergings,
Channel decoding and code block cyclic redundancy check (CRC) error detection processing；
Each code block in code block group is subjected to bit-level code block cascade processing, obtains transmission block, to being obtained after transmission block CRC error detections
The user data sent to terminal.
2. according to the method described in claim 1, it is characterized in that, described be deinterleaved the symbol sebolic addressing to be demodulated
Processing, the symbol sebolic addressing after being deinterleaved, including：
According to preset rules, processing is deinterleaved to symbol sebolic addressing to be demodulated, the symbol sebolic addressing after being deinterleaved is described
Symbol sebolic addressing after deinterleaving includes data symbol and controlling symbols, and the controlling symbols are accorded with by CQI symbols, RI symbols and ACK
Number composition.
3. according to the method described in claim 2, it is characterized in that, the symbol sebolic addressing to after the deinterleaving demultiplexes
With processing, the symbol sebolic addressing after being demultiplexed, including：
The CQI symbols, RI symbols are taken out from the symbol sebolic addressing after deinterleaving and be cached to respectively preset CQI caching with
And in RI cachings, the position not zero padding to being vacated in the symbol sebolic addressing after deinterleaving obtains the first symbol sebolic addressing；
By the ACK symbols from taking out and being cached in preset ACK cachings in first symbol sebolic addressing, to the first symbol sequence
The position zero padding vacated in row, obtains the second symbol sebolic addressing, and second symbol sebolic addressing is the symbol sebolic addressing after demultiplexing.
4. according to the method described in claim 3, it is characterized in that, it is described to it is described by symbol level handle symbol sebolic addressing into
Row dividing processing obtains code block group, including：
According to the value of preset transport block size TBS, the maximum input bit number of modulation mapped bits number Q and Turbo coding,
Calculate code block segmentation number C；
Symbol sebolic addressing after the demultiplexing is divided into C code block, the C code block is ranked sequentially composition code block according to segmentation
Group；
Wherein, the value of the TBS is K bit, and the maximum input bit number of the Turbo codings is 6144, correspondingly, described
According to the value of preset transport block size TBS, the maximum input bit number of modulation mapped bits number Q and Turbo coding, code is calculated
Block divides number C, including：
Q=2,4,6, corresponding modulation system are QPSK, 16QAM, 64QAM, and corresponding modulation symbol number is M=K/Q, then
If M≤Z, code block segmentation number C=1；
If M ＞ Z, code block segmentation numberWherein Z=6144/Q.
5. according to the method described in claim 4, it is further characterized in that, the code block group to after the demodulation carries out at descrambling
Before the step of reason, the method further includes：
According to the corresponding bit sequence length of the symbol sebolic addressing to be demodulated, the scrambled bits sequence of corresponding length is generated；
Processing is deinterleaved to the scrambled bits sequence, obtain and caches the scrambler sequence after deinterleaving；
Correspondingly, the code block group progress scramble process to after the demodulation, the code block group after being descrambled, including：
According to the position in the symbol sebolic addressing of CQI symbols and RI symbols after deinterleaving, by the scrambler sequence after the deinterleaving
The bit of middle corresponding position removes, and obtains the first scrambler sequence；
According to the position in symbol sebolic addressing of the ACK symbols after the deinterleaving, by corresponding position in first scrambler sequence
Bit remove and zero padding, obtain the second scrambler sequence；
According to code block segmentation number C, second scrambler sequence is divided into C scrambler corresponding with the code block in code block group
Sequence；
According to the C scrambler subsequence, the bit sequence of C code block carries out scramble process in code-aiming block group.
6. a kind of base station, which is characterized in that the base station includes：
Signal processing unit obtains symbol sebolic addressing for carrying out signal processing to the uplink signal received；
Symbol level processing unit obtains the symbol handled by symbol level for carrying out symbol level processing to the symbol sebolic addressing
Sequence；
Dividing processing unit obtains code block group for being split processing to the symbol sebolic addressing handled by symbol level；
Demodulation process unit, for carrying out demodulation process, the code block group after being demodulated to the code block group；
Scramble process unit, for carrying out scramble process, the code block group after being descrambled to the code block group after the demodulation；
Bit-level processing unit obtains the user of terminal transmission for carrying out bit-level processing to the code block group after the descrambling
Data are completed uplink signal and are received；
Wherein, the signal processing unit, is specifically used for：
Channel estimation, detection are carried out to the uplink signal received, obtain symbol sebolic addressing to be demodulated, the symbol to be demodulated
Sequence includes data symbol and controlling symbols, and the controlling symbols are by channel quality indicator (CQI) symbol, order instruction RI symbols and answer
Answer ACK symbols composition；
Wherein, the symbol level processing unit, is specifically used for：
Processing is deinterleaved to the symbol sebolic addressing to be demodulated, the symbol sebolic addressing after being deinterleaved；
Demultiplexing process, the symbol sebolic addressing after being demultiplexed are carried out to the symbol sebolic addressing after the deinterleaving；
Wherein, the bit-level processing unit, is specifically used for：
To each code block in the code block group after the descrambling carry out solution rate-matched, hybrid automatic repeat-request HARQ soft mergings,
Channel decoding and code block cyclic redundancy check (CRC) error detection processing；
Each code block in code block group is subjected to bit-level code block cascade processing, obtains transmission block, to being obtained after transmission block CRC error detections
The user data sent to terminal.
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| CN106301530B (en) * | 2016-08-22 | 2018-12-25 | 杭州国芯科技股份有限公司 | A kind of fast physical layer scrambling code parameter searching method based on sky packet |
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