CN105530071B - A kind of uplink signal coding method and terminal based on code block segmentation - Google Patents
A kind of uplink signal coding method and terminal based on code block segmentation Download PDFInfo
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- CN105530071B CN105530071B CN201410515966.9A CN201410515966A CN105530071B CN 105530071 B CN105530071 B CN 105530071B CN 201410515966 A CN201410515966 A CN 201410515966A CN 105530071 B CN105530071 B CN 105530071B
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Abstract
The present invention discloses a kind of uplink signal coding method based on code block segmentation and terminal, the method includes：Bit-level processing is carried out to transmission block, obtains code block group；Scrambling processing is carried out to the code block group, the code block group after being scrambled；Processing is modulated to the code block group after the scrambling, obtains modulated code block group；Symbol level processing, the uplink signal after being encoded are carried out to the modulated code block group.The uplink signal coding method based on code block segmentation of the present invention and terminal by the processing that will scramble and modulate based on code block rather than entire transport block length, 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 method and end based on code block segmentation
End.
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 point is used in LTE system
Cut technology, i.e., the code block number divided by calculating " transmission block bit number/6144 ", based on code block number to transmission block into
Row code block segmentation, each code bit number in the block after segmentation are less than or equal to 6144 bits, are handled for Turbo coding and decodings.
Fig. 1 is the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) of LTE system
Uplink signal encode flow diagram.Wherein, the transmission block of business datum passes through transmission block CRC (Cyclic Redundancy
Check, cyclic redundancy check) coding, code block segmentation is carried out, each code block after segmentation carries out code block CRC codings, channel is compiled
Whole code blocks are carried out code block cascade later, form the bit sequence based on transmission block, then answered by code, rate-matched processing
With and interleaving treatment, transmission block bit sequence starting position be multiplexed CQI (Channel quality indicator, channel matter
Amount instruction) sequences of code bits, RI (Rank Indication, order instruction) and ACK is added in corresponding position in interleaving process
(Acknowledge, response) coded-bit, code-aiming block cascade after through multiplexing and interleaving treatment entire sequence carry out scrambling and
Modulation treatment.
In LTE system, the processing of the code block of existing uplink signal coding side is only carried out in bit-level, and is scrambled, modulated and be
It is handled based on entire transport block length, since corresponding TBS (Transport Block Size, transport block size) compares
Special numerical value increases, and for big transmission block, treating capacity will greatly increase.For example, coming for scrambled treated length
It says, in the case of 64QAM modulation systems, due to the increase of TBS bit numbers, scrambled treating capacity ratio QPSK (Quadrature
Phase Shift Keying, quadrature phase shift keying) and treating capacity when 16QAM increase it is very much.For the processing of modulation,
Symbol-modulated bit wide when due to 64QAM is 6 bits, and compared with symbol-modulated when 16QAM, the treating capacity of modulation mapping is
1.5 times of original treating capacity.
Since the processing of existing scrambling and modulation is handled based on entire transport block length, with LTE system
The treating capacity of the complication of configuration, scrambling and modulation 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 scrambling and modulation is to be based on entire transport block length
It is handled, with the complication that LTE system configures, the treating capacity of scrambling and modulation 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 method based on code block segmentation, the side
Method includes：
Bit-level processing is carried out to transmission block, obtains code block group；
Scrambling processing is carried out to the code block group, the code block group after being scrambled；
Processing is modulated to the code block group after the scrambling, obtains modulated code block group；
Symbol level processing, the uplink signal after being encoded are carried out to the modulated code block group.
Optionally, described that bit-level processing is carried out to transmission block, including：
Block cyclic redundancy check (CRC) coding is transmitted to transmission block, and transmission block bit is connect with CRC coded-bits
Get up to carry out bit-level code block dividing processing, obtains code block；
Code block CRC codings, channel coding, rate-matched processing are carried out to each code block, obtain code block group.
Optionally, described that scrambling processing is carried out to the code block group, including：
According to preset scrambler subsequence group, scrambling processing, the scrambler are carried out to each code block in the code block group
Subsequence group is scrambler subsequence group that the preset intertexture scrambler sequence of segmentation obtains and corresponding with the code block group.
Optionally, the code block group to after the scrambling is modulated processing, obtains modulated code block group, including：
According to preset modulation system, processing is modulated to the code block group after the scrambling, the modulation system includes
QPSK, 16QAM or 64QAM.
Optionally, it is described symbol level processing is carried out to the modulated code block group before, the method further includes：
According to the bit for controlling signal corresponding position in preset intertexture scrambler sequence, control signal is carried out at scrambling
Reason, the control signal includes channel quality indicator (CQI), order instruction RI and response ACK；
According to preset modulation system, processing is modulated to the CQI, obtains CQI symbol sebolic addressings, to the RI and institute
State ACK and carry out QPSK modulation treatments, obtain RI symbol sebolic addressings and ACK symbol sebolic addressings, the modulation system include QPSK,
16QAM or 64QAM.
Optionally, described that symbol level processing is carried out to the modulated code block group, including：
The modulated code block group is cascaded up, data symbol sequence is obtained；
The CQI symbol sebolic addressings are placed on to the beginning location of the data symbol sequence；By RI symbol sebolic addressings and ACK
Symbol sebolic addressing is placed on the predeterminated position in the data symbol sequence, and deletes the data symbol of the predeterminated position, obtains
The data symbol sequence of control signal is added；
The data symbol sequence that control signal is added is interleaved, the uplink signal after being encoded.
Second aspect, the present invention also propose that a kind of terminal, the terminal include：
Bit-level processing unit obtains code block group for carrying out bit-level processing to transmission block；
Scramble processing unit, for carrying out scrambling processing to the code block group, the code block group after being scrambled；
Modulation treatment unit is modulated processing to the code block group after the scrambling, obtains modulated code block group；
Symbol level processing unit obtains uplink signal for carrying out symbol level processing to the modulated code block group；
Optionally, the bit-level processing unit, is specifically used for：
Block cyclic redundancy check (CRC) coding is transmitted to transmission block, and transmission block bit is connect with CRC coded-bits
Get up to carry out bit-level code block dividing processing, obtains code block；
Code block CRC codings, channel coding, rate-matched processing are carried out to each code block, obtain code block group.
Optionally, the scrambling processing unit, is specifically used for：
According to preset scrambler subsequence group, scrambling processing, the scrambler are carried out to each code block in the code block group
Subsequence group is divided preset intertexture scrambler sequence and is obtained, and corresponding with the code block group.
Optionally, the modulation treatment unit, is specifically used for：
According to preset modulation system, processing is modulated to the code block group after the scrambling, the modulation system includes
QPSK, 16QAM or 64QAM.
Compared with the prior art, uplink signal coding method and terminal of the invention based on code block segmentation will be by that will scramble
Processing with modulation 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 coding flow diagram of the PUSCH channels of existing LTE system；
Fig. 2 shows the uplink signal coding method flow charts based on code block segmentation；
Fig. 3 shows the uplink signal coding method flow chart based on code block segmentation；
Fig. 4 shows the terminal structure figure using the uplink signal coding 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 method flow chart based on code block segmentation as shown in Figures 2 and 3, the present embodiment disclose one kind
Uplink signal coding method based on code block segmentation, the method may include following steps：
S1, bit-level processing is carried out to transmission block, obtains code block group；
For example, bit-level processing may include：
Block CRC codings are transmitted to transmission block, transmission block bit and CRC coded-bits are connected into carry out bit-level
Code block segmentation processing；Code block CRC codings, channel coding, rate-matched processing are carried out to each code block, obtain code block group.
S2, scrambling processing is carried out to the code block group, the code block group after being scrambled；
In concrete application, scrambling processing may include two aspects：
On the one hand, the scrambling processing of signal is controlled：
Signal will be controlled：Default CQI is slow accordingly for channel quality indicator (CQI), order instruction RI and the deposit of response ACK bit
It deposits, default RI cachings and default ACK cache；According in preset intertexture scrambler sequence control signal corresponding position bit,
Scrambling processing is carried out to control signal.
On the other hand, the scrambling processing of code block group：
Preset intertexture scrambler sequence is divided into scrambler subsequence group corresponding with the code block group；According to the scrambler
Subsequence group carries out scrambling processing to each code block in the code block group.
S3, processing is modulated to the code block group after the scrambling, obtains modulated code block group；At the modulation of the step
Reason is carried out in code block grade, is specifically included：
According to preset modulation system, processing is modulated to the code block group after the scrambling, the modulation system includes
QPSK、16QAM、64QAM.In practical application, for example, the selection of modulation system determines in LTE system configuration.
According to preset modulation system, processing is modulated to CQI, obtains CQI symbol sebolic addressings, the modulation system includes
QPSK、16QAM、64QAM；
QPSK modulation treatments are carried out to RI and ACK, obtain RI symbol sebolic addressings and ACK symbol sebolic addressings.
S4, symbol level processing, the uplink signal after being encoded are carried out to the modulated code block group；
For example, symbol level processing may include：
Modulated code block group is cascaded up, data symbol sequence is obtained；
CQI symbol sebolic addressings are placed on to the beginning location of data symbol sequence；By RI symbol sebolic addressings and ACK symbol sebolic addressings
The predeterminated position being placed in data symbol sequence, and the data symbol of predeterminated position is deleted, obtain the number that control signal is added
According to symbol sebolic addressing；
Data symbol sequence to control signal is added is interleaved, the uplink signal after being encoded.
The uplink signal coding method based on code block segmentation of the present embodiment is based on code by the processing that will be scrambled and modulate
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 terminal structure figure of the uplink signal coding method of application as shown in Figure 4 based on code block segmentation, the present embodiment are public
A kind of terminal is opened, the terminal may include：
Bit-level processing unit obtains code block group for carrying out bit-level processing to transmission block；
Scramble processing unit, for carrying out scrambling processing to the code block group, the code block group after being scrambled；
Modulation treatment unit is modulated processing to the code block group after the scrambling, obtains modulated code block group；
Symbol level processing unit obtains uplink signal for carrying out symbol level processing to the modulated code block group.
The terminal 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 terminal of uplink signal coding method of the application of the present embodiment based on code block segmentation will be by that will scramble and modulate
Processing is based on code block rather than entire transport block length, to reduce the treating capacity of LTE system.The terminal of the present embodiment is suitable for hard
Parallel processing designs under part 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 (8)
1. a kind of uplink signal coding method based on code block segmentation, which is characterized in that the method includes：
Bit-level processing is carried out to transmission block, obtains code block group；
Scrambling processing is carried out to the code block group, the code block group after being scrambled；
Processing is modulated to the code block group after the scrambling, obtains modulated code block group；
Symbol level processing, the uplink signal after being encoded are carried out to the modulated code block group；
Wherein, described that scrambling processing is carried out to the code block group, including：
According to preset scrambler subsequence group, scrambling processing, the sub- sequence of scrambler are carried out to each code block in the code block group
Row group is scrambler subsequence group that the preset intertexture scrambler sequence of segmentation obtains and corresponding with the code block group.
2. according to the method described in claim 1, it is characterized in that, it is described to transmission block carry out bit-level processing, including：
Block cyclic redundancy check (CRC) coding is transmitted to transmission block, and transmission block bit and CRC coded-bits are connected
Bit-level code block dividing processing is carried out, code block is obtained；
Code block CRC codings, channel coding, rate-matched processing are carried out to each code block, obtain code block group.
3. according to the method described in claim 1, it is characterized in that, the code block group to after the scrambling is modulated place
Reason, obtains modulated code block group, including：
According to preset modulation system, processing is modulated to the code block group after the scrambling, the modulation system include QPSK,
16QAM or 64QAM.
4. according to the method described in claim 1, it is further characterized in that, it is described that symbol level is carried out to the modulated code block group
Before processing, the method further includes：
According to the bit for controlling signal corresponding position in preset intertexture scrambler sequence, scrambling processing, institute are carried out to control signal
It includes channel quality indicator (CQI), order instruction RI and response ACK to state control signal；
According to preset modulation system, processing is modulated to the CQI, obtains CQI symbol sebolic addressings, to the RI and described
ACK carries out QPSK modulation treatments, obtains RI symbol sebolic addressings and ACK symbol sebolic addressings, the modulation system includes QPSK, 16QAM
Or 64QAM.
5. according to the method described in claim 4, it is characterized in that, described carry out at symbol level the modulated code block group
Reason, including：
The modulated code block group is cascaded up, data symbol sequence is obtained；
The CQI symbol sebolic addressings are placed on to the beginning location of the data symbol sequence；By RI symbol sebolic addressings and ACK symbols
Sequence is placed on the predeterminated position in the data symbol sequence, and deletes the data symbol of the predeterminated position, is added
Control the data symbol sequence of signal；
The data symbol sequence that control signal is added is interleaved, the uplink signal after being encoded.
6. a kind of terminal, which is characterized in that the terminal includes：
Bit-level processing unit obtains code block group for carrying out bit-level processing to transmission block；
Scramble processing unit, for carrying out scrambling processing to the code block group, the code block group after being scrambled；
Modulation treatment unit is modulated processing to the code block group after the scrambling, obtains modulated code block group；
Symbol level processing unit obtains uplink signal for carrying out symbol level processing to the modulated code block group；
Wherein, the scrambling processing unit, is specifically used for：
According to preset scrambler subsequence group, scrambling processing, the sub- sequence of scrambler are carried out to each code block in the code block group
Row group is divided preset intertexture scrambler sequence and is obtained, and corresponding with the code block group.
7. terminal according to claim 6, which is characterized in that the bit-level processing unit is specifically used for：
Block cyclic redundancy check (CRC) coding is transmitted to transmission block, and transmission block bit and CRC coded-bits are connected
Bit-level code block dividing processing is carried out, code block is obtained；
Code block CRC codings, channel coding, rate-matched processing are carried out to each code block, obtain code block group.
8. terminal according to claim 6, which is characterized in that the modulation treatment unit is specifically used for：
According to preset modulation system, processing is modulated to the code block group after the scrambling, the modulation system include QPSK,
16QAM or 64QAM.
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| WO2018053854A1 (en) * | 2016-09-26 | 2018-03-29 | Nokia Technologies Oy | Error detection and channel coding of transport blocks |
| EP3584977B1 (en) * | 2017-02-22 | 2022-01-26 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for information transmission |
| ES2968142T3 (en) | 2017-03-08 | 2024-05-08 | Lg Electronics Inc | Method and apparatus for transmitting and receiving radio signals in a wireless communication system |
| CN108737307B (en) * | 2017-04-14 | 2023-03-10 | 北京三星通信技术研究有限公司 | Multi-access method, transmitter and receiver |
| CN108631937B (en) * | 2017-03-24 | 2020-06-02 | 华为技术有限公司 | Information processing method, device and equipment |
| US11695507B2 (en) | 2017-03-24 | 2023-07-04 | Samsung Electronics Co., Ltd. | Apparatus and method for in multiple access in wireless communication |
| CN109245860B (en) | 2017-04-28 | 2020-03-20 | 华为技术有限公司 | Data processing method and data processing device |
| CN114866204B (en) | 2017-05-05 | 2024-04-09 | 大唐移动通信设备有限公司 | Transmission method, terminal equipment and base station |
| CN107196740A (en) * | 2017-05-05 | 2017-09-22 | 宇龙计算机通信科技(深圳)有限公司 | The transmission method and device of a kind of code block |
| CN117318905A (en) * | 2017-09-29 | 2023-12-29 | 北京三星通信技术研究有限公司 | Uplink transmission method and corresponding equipment |
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| CN101695017A (en) * | 2009-10-27 | 2010-04-14 | 中兴通讯股份有限公司 | Method and device for transmitting an uplink control signaling on a physical uplink shared channel |
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| CN101924606A (en) * | 2010-08-16 | 2010-12-22 | 中兴通讯股份有限公司 | Method for sending uplink control information on basis of PUSCH transmission and system thereof |
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| CN102013938B (en) * | 2009-12-07 | 2012-07-04 | 华为技术有限公司 | Method and device for transmitting uplink control information (UCI) |
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| CN101695017A (en) * | 2009-10-27 | 2010-04-14 | 中兴通讯股份有限公司 | Method and device for transmitting an uplink control signaling on a physical uplink shared channel |
| CN101702631A (en) * | 2009-11-04 | 2010-05-05 | 中兴通讯股份有限公司 | Transmission method of uplink control signaling and device thereof |
| CN101924606A (en) * | 2010-08-16 | 2010-12-22 | 中兴通讯股份有限公司 | Method for sending uplink control information on basis of PUSCH transmission and system thereof |
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